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Diffstat (limited to 'recipes/kexecboot/linux-kexecboot-2.6.29/dss2/0003-DSS2-OMAP2-3-Display-Subsystem-driver.patch')
-rw-r--r--recipes/kexecboot/linux-kexecboot-2.6.29/dss2/0003-DSS2-OMAP2-3-Display-Subsystem-driver.patch14450
1 files changed, 14450 insertions, 0 deletions
diff --git a/recipes/kexecboot/linux-kexecboot-2.6.29/dss2/0003-DSS2-OMAP2-3-Display-Subsystem-driver.patch b/recipes/kexecboot/linux-kexecboot-2.6.29/dss2/0003-DSS2-OMAP2-3-Display-Subsystem-driver.patch
new file mode 100644
index 0000000000..4610e28704
--- /dev/null
+++ b/recipes/kexecboot/linux-kexecboot-2.6.29/dss2/0003-DSS2-OMAP2-3-Display-Subsystem-driver.patch
@@ -0,0 +1,14450 @@
+From 284deec412f9c6f15c971d8eaf4d0156a51a2f3b Mon Sep 17 00:00:00 2001
+From: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+Date: Thu, 2 Apr 2009 10:23:42 +0300
+Subject: [PATCH 03/69] DSS2: OMAP2/3 Display Subsystem driver
+
+Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+---
+ Documentation/arm/OMAP/DSS | 311 +++
+ arch/arm/plat-omap/Makefile | 2 +-
+ arch/arm/plat-omap/include/mach/display.h | 520 ++++
+ arch/arm/plat-omap/include/mach/vram.h | 33 +
+ arch/arm/plat-omap/include/mach/vrfb.h | 47 +
+ arch/arm/plat-omap/vram.c | 615 +++++
+ arch/arm/plat-omap/vrfb.c | 159 ++
+ drivers/video/Kconfig | 1 +
+ drivers/video/Makefile | 1 +
+ drivers/video/omap2/Kconfig | 3 +
+ drivers/video/omap2/Makefile | 4 +
+ drivers/video/omap2/dss/Kconfig | 89 +
+ drivers/video/omap2/dss/Makefile | 6 +
+ drivers/video/omap2/dss/core.c | 641 +++++
+ drivers/video/omap2/dss/dispc.c | 2968 +++++++++++++++++++++++
+ drivers/video/omap2/dss/display.c | 693 ++++++
+ drivers/video/omap2/dss/dpi.c | 393 +++
+ drivers/video/omap2/dss/dsi.c | 3752 +++++++++++++++++++++++++++++
+ drivers/video/omap2/dss/dss.c | 345 +++
+ drivers/video/omap2/dss/dss.h | 331 +++
+ drivers/video/omap2/dss/manager.c | 576 +++++
+ drivers/video/omap2/dss/overlay.c | 587 +++++
+ drivers/video/omap2/dss/rfbi.c | 1304 ++++++++++
+ drivers/video/omap2/dss/sdi.c | 245 ++
+ drivers/video/omap2/dss/venc.c | 600 +++++
+ 25 files changed, 14225 insertions(+), 1 deletions(-)
+ create mode 100644 Documentation/arm/OMAP/DSS
+ create mode 100644 arch/arm/plat-omap/include/mach/display.h
+ create mode 100644 arch/arm/plat-omap/include/mach/vram.h
+ create mode 100644 arch/arm/plat-omap/include/mach/vrfb.h
+ create mode 100644 arch/arm/plat-omap/vram.c
+ create mode 100644 arch/arm/plat-omap/vrfb.c
+ create mode 100644 drivers/video/omap2/Kconfig
+ create mode 100644 drivers/video/omap2/Makefile
+ create mode 100644 drivers/video/omap2/dss/Kconfig
+ create mode 100644 drivers/video/omap2/dss/Makefile
+ create mode 100644 drivers/video/omap2/dss/core.c
+ create mode 100644 drivers/video/omap2/dss/dispc.c
+ create mode 100644 drivers/video/omap2/dss/display.c
+ create mode 100644 drivers/video/omap2/dss/dpi.c
+ create mode 100644 drivers/video/omap2/dss/dsi.c
+ create mode 100644 drivers/video/omap2/dss/dss.c
+ create mode 100644 drivers/video/omap2/dss/dss.h
+ create mode 100644 drivers/video/omap2/dss/manager.c
+ create mode 100644 drivers/video/omap2/dss/overlay.c
+ create mode 100644 drivers/video/omap2/dss/rfbi.c
+ create mode 100644 drivers/video/omap2/dss/sdi.c
+ create mode 100644 drivers/video/omap2/dss/venc.c
+
+diff --git a/Documentation/arm/OMAP/DSS b/Documentation/arm/OMAP/DSS
+new file mode 100644
+index 0000000..9e902a2
+--- /dev/null
++++ b/Documentation/arm/OMAP/DSS
+@@ -0,0 +1,311 @@
++OMAP2/3 Display Subsystem
++-------------------------
++
++This is an almost total rewrite of the OMAP FB driver in drivers/video/omap
++(let's call it DSS1). The main differences between DSS1 and DSS2 are DSI,
++TV-out and multiple display support, but there are lots of small improvements
++also.
++
++The DSS2 driver (omapdss module) is in arch/arm/plat-omap/dss/, and the FB,
++panel and controller drivers are in drivers/video/omap2/. DSS1 and DSS2 live
++currently side by side, you can choose which one to use.
++
++Features
++--------
++
++Working and tested features include:
++
++- MIPI DPI (parallel) output
++- MIPI DSI output in command mode
++- MIPI DBI (RFBI) output
++- SDI output
++- TV output
++- All pieces can be compiled as a module or inside kernel
++- Use DISPC to update any of the outputs
++- Use CPU to update RFBI or DSI output
++- OMAP DISPC planes
++- RGB16, RGB24 packed, RGB24 unpacked
++- YUV2, UYVY
++- Scaling
++- Adjusting DSS FCK to find a good pixel clock
++- Use DSI DPLL to create DSS FCK
++
++Tested boards include:
++- OMAP3 SDP board
++- Beagle board
++- N810
++
++omapdss driver
++--------------
++
++The DSS driver does not itself have any support for Linux framebuffer, V4L or
++such like the current ones, but it has an internal kernel API that upper level
++drivers can use.
++
++The DSS driver models OMAP's overlays, overlay managers and displays in a
++flexible way to enable non-common multi-display configuration. In addition to
++modelling the hardware overlays, omapdss supports virtual overlays and overlay
++managers. These can be used when updating a display with CPU or system DMA.
++
++Panel and controller drivers
++----------------------------
++
++The drivers implement panel or controller specific functionality and are not
++usually visible to users except through omapfb driver. They register
++themselves to the DSS driver.
++
++omapfb driver
++-------------
++
++The omapfb driver implements arbitrary number of standard linux framebuffers.
++These framebuffers can be routed flexibly to any overlays, thus allowing very
++dynamic display architecture.
++
++The driver exports some omapfb specific ioctls, which are compatible with the
++ioctls in the old driver.
++
++The rest of the non standard features are exported via sysfs. Whether the final
++implementation will use sysfs, or ioctls, is still open.
++
++V4L2 drivers
++------------
++
++V4L2 is being implemented in TI.
++
++From omapdss point of view the V4L2 drivers should be similar to framebuffer
++driver.
++
++Architecture
++--------------------
++
++Some clarification what the different components do:
++
++ - Framebuffer is a memory area inside OMAP's SRAM/SDRAM that contains the
++ pixel data for the image. Framebuffer has width and height and color
++ depth.
++ - Overlay defines where the pixels are read from and where they go on the
++ screen. The overlay may be smaller than framebuffer, thus displaying only
++ part of the framebuffer. The position of the overlay may be changed if
++ the overlay is smaller than the display.
++ - Overlay manager combines the overlays in to one image and feeds them to
++ display.
++ - Display is the actual physical display device.
++
++A framebuffer can be connected to multiple overlays to show the same pixel data
++on all of the overlays. Note that in this case the overlay input sizes must be
++the same, but, in case of video overlays, the output size can be different. Any
++framebuffer can be connected to any overlay.
++
++An overlay can be connected to one overlay manager. Also DISPC overlays can be
++connected only to DISPC overlay managers, and virtual overlays can be only
++connected to virtual overlays.
++
++An overlay manager can be connected to one display. There are certain
++restrictions which kinds of displays an overlay manager can be connected:
++
++ - DISPC TV overlay manager can be only connected to TV display.
++ - Virtual overlay managers can only be connected to DBI or DSI displays.
++ - DISPC LCD overlay manager can be connected to all displays, except TV
++ display.
++
++Sysfs
++-----
++The sysfs interface is mainly used for testing. I don't think sysfs
++interface is the best for this in the final version, but I don't quite know
++what would be the best interfaces for these things.
++
++The sysfs interface is divided to two parts: DSS and FB.
++
++/sys/class/graphics/fb? directory:
++mirror 0=off, 1=on
++rotate Rotation 0-3 for 0, 90, 180, 270 degrees
++rotate_type 0 = DMA rotation, 1 = VRFB rotation
++overlays List of overlay numbers to which framebuffer pixels go
++phys_addr Physical address of the framebuffer
++virt_addr Virtual address of the framebuffer
++size Size of the framebuffer
++
++/sys/devices/platform/omapdss/overlay? directory:
++enabled 0=off, 1=on
++input_size width,height (ie. the framebuffer size)
++manager Destination overlay manager name
++name
++output_size width,height
++position x,y
++screen_width width
++
++/sys/devices/platform/omapdss/manager? directory:
++display Destination display
++name
++
++/sys/devices/platform/omapdss/display? directory:
++ctrl_name Controller name
++mirror 0=off, 1=on
++update_mode 0=off, 1=auto, 2=manual
++enabled 0=off, 1=on
++name
++rotate Rotation 0-3 for 0, 90, 180, 270 degrees
++timings Display timings (pixclock,xres/hfp/hbp/hsw,yres/vfp/vbp/vsw)
++ When writing, two special timings are accepted for tv-out:
++ "pal" and "ntsc"
++panel_name
++tear_elim Tearing elimination 0=off, 1=on
++
++There are also some debugfs files at <debugfs>/omapdss/ which show information
++about clocks and registers.
++
++Examples
++--------
++
++The following definitions have been made for the examples below:
++
++ovl0=/sys/devices/platform/omapdss/overlay0
++ovl1=/sys/devices/platform/omapdss/overlay1
++ovl2=/sys/devices/platform/omapdss/overlay2
++
++mgr0=/sys/devices/platform/omapdss/manager0
++mgr1=/sys/devices/platform/omapdss/manager1
++
++lcd=/sys/devices/platform/omapdss/display0
++dvi=/sys/devices/platform/omapdss/display1
++tv=/sys/devices/platform/omapdss/display2
++
++fb0=/sys/class/graphics/fb0
++fb1=/sys/class/graphics/fb1
++fb2=/sys/class/graphics/fb2
++
++Default setup on OMAP3 SDP
++--------------------------
++
++Here's the default setup on OMAP3 SDP board. All planes go to LCD. DVI
++and TV-out are not in use. The columns from left to right are:
++framebuffers, overlays, overlay managers, displays. Framebuffers are
++handled by omapfb, and the rest by the DSS.
++
++FB0 --- GFX -\ DVI
++FB1 --- VID1 --+- LCD ---- LCD
++FB2 --- VID2 -/ TV ----- TV
++
++Example: Switch from LCD to DVI
++----------------------
++
++w=`cat $dvi/horizontal | cut -d "," -f 1`
++h=`cat $dvi/vertical | cut -d "," -f 1`
++
++echo "0" > $lcd/enabled
++echo "" > $mgr0/display
++fbset -fb /dev/fb0 -xres $w -yres $h -vxres $w -vyres $h
++# at this point you have to switch the dvi/lcd dip-switch from the omap board
++echo "dvi" > $mgr0/display
++echo "1" > $dvi/enabled
++
++After this the configuration looks like:
++
++FB0 --- GFX -\ -- DVI
++FB1 --- VID1 --+- LCD -/ LCD
++FB2 --- VID2 -/ TV ----- TV
++
++Example: Clone GFX overlay to LCD and TV
++-------------------------------
++
++w=`cat $tv/horizontal | cut -d "," -f 1`
++h=`cat $tv/vertical | cut -d "," -f 1`
++
++echo "0" > $ovl0/enabled
++echo "0" > $ovl1/enabled
++
++echo "" > $fb1/overlays
++echo "0,1" > $fb0/overlays
++
++echo "$w,$h" > $ovl1/output_size
++echo "tv" > $ovl1/manager
++
++echo "1" > $ovl0/enabled
++echo "1" > $ovl1/enabled
++
++echo "1" > $tv/enabled
++
++After this the configuration looks like (only relevant parts shown):
++
++FB0 +-- GFX ---- LCD ---- LCD
++ \- VID1 ---- TV ---- TV
++
++Misc notes
++----------
++
++OMAP FB allocates the framebuffer memory using the OMAP VRAM allocator.
++
++Using DSI DPLL to generate pixel clock it is possible produce the pixel clock
++of 86.5MHz (max possible), and with that you get 1280x1024@57 output from DVI.
++
++Rotation and mirroring currently only supports RGB565 and RGB8888 modes. VRFB
++does not support mirroring.
++
++VRFB rotation requires much more memory than non-rotated framebuffer, so you
++probably need to increase your vram setting before using VRFB rotation. Also,
++many applications may not work with VRFB if they do not pay attention to all
++framebuffer parameters.
++
++Kernel boot arguments
++---------------------
++
++vram=<size>
++ - Amount of total VRAM to preallocate. For example, "10M". omapfb
++ allocates memory for framebuffers from VRAM.
++
++omapfb.mode=<display>:<mode>[,...]
++ - Default video mode for specified displays. For example,
++ "dvi:800x400MR-24@60". See drivers/video/modedb.c.
++ There are also two special modes: "pal" and "ntsc" that
++ can be used to tv out.
++
++omapfb.vram=<fbnum>:<size>[@<physaddr>][,...]
++ - VRAM allocated for a framebuffer. Normally omapfb allocates vram
++ depending on the display size. With this you can manually allocate
++ more or define the physical address of each framebuffer. For example,
++ "1:4M" to allocate 4M for fb1.
++
++omapfb.debug=<y|n>
++ - Enable debug printing. You have to have OMAPFB debug support enabled
++ in kernel config.
++
++omapfb.test=<y|n>
++ - Draw test pattern to framebuffer whenever framebuffer settings change.
++ You need to have OMAPFB debug support enabled in kernel config.
++
++omapfb.vrfb=<y|n>
++ - Use VRFB rotation for all framebuffers.
++
++omapfb.rotate=<angle>
++ - Default rotation applied to all framebuffers.
++ 0 - 0 degree rotation
++ 1 - 90 degree rotation
++ 2 - 180 degree rotation
++ 3 - 270 degree rotation
++
++omapfb.mirror=<y|n>
++ - Default mirror for all framebuffers. Only works with DMA rotation.
++
++omapdss.def_disp=<display>
++ - Name of default display, to which all overlays will be connected.
++ Common examples are "lcd" or "tv".
++
++omapdss.debug=<y|n>
++ - Enable debug printing. You have to have DSS debug support enabled in
++ kernel config.
++
++TODO
++----
++
++DSS locking
++
++Error checking
++- Lots of checks are missing or implemented just as BUG()
++
++System DMA update for DSI
++- Can be used for RGB16 and RGB24P modes. Probably not for RGB24U (how
++ to skip the empty byte?)
++
++OMAP1 support
++- Not sure if needed
++
+diff --git a/arch/arm/plat-omap/Makefile b/arch/arm/plat-omap/Makefile
+index 3ebc09e..e6146b2 100644
+--- a/arch/arm/plat-omap/Makefile
++++ b/arch/arm/plat-omap/Makefile
+@@ -4,7 +4,7 @@
+
+ # Common support
+ obj-y := common.o sram.o clock.o devices.o dma.o mux.o gpio.o \
+- usb.o fb.o io.o
++ usb.o fb.o vram.o vrfb.o io.o
+ obj-m :=
+ obj-n :=
+ obj- :=
+diff --git a/arch/arm/plat-omap/include/mach/display.h b/arch/arm/plat-omap/include/mach/display.h
+new file mode 100644
+index 0000000..6288353
+--- /dev/null
++++ b/arch/arm/plat-omap/include/mach/display.h
+@@ -0,0 +1,520 @@
++/*
++ * linux/include/asm-arm/arch-omap/display.h
++ *
++ * Copyright (C) 2008 Nokia Corporation
++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published by
++ * the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
++ * more details.
++ *
++ * You should have received a copy of the GNU General Public License along with
++ * this program. If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#ifndef __ASM_ARCH_OMAP_DISPLAY_H
++#define __ASM_ARCH_OMAP_DISPLAY_H
++
++#include <linux/list.h>
++#include <linux/kobject.h>
++#include <asm/atomic.h>
++
++#define DISPC_IRQ_FRAMEDONE (1 << 0)
++#define DISPC_IRQ_VSYNC (1 << 1)
++#define DISPC_IRQ_EVSYNC_EVEN (1 << 2)
++#define DISPC_IRQ_EVSYNC_ODD (1 << 3)
++#define DISPC_IRQ_ACBIAS_COUNT_STAT (1 << 4)
++#define DISPC_IRQ_PROG_LINE_NUM (1 << 5)
++#define DISPC_IRQ_GFX_FIFO_UNDERFLOW (1 << 6)
++#define DISPC_IRQ_GFX_END_WIN (1 << 7)
++#define DISPC_IRQ_PAL_GAMMA_MASK (1 << 8)
++#define DISPC_IRQ_OCP_ERR (1 << 9)
++#define DISPC_IRQ_VID1_FIFO_UNDERFLOW (1 << 10)
++#define DISPC_IRQ_VID1_END_WIN (1 << 11)
++#define DISPC_IRQ_VID2_FIFO_UNDERFLOW (1 << 12)
++#define DISPC_IRQ_VID2_END_WIN (1 << 13)
++#define DISPC_IRQ_SYNC_LOST (1 << 14)
++#define DISPC_IRQ_SYNC_LOST_DIGIT (1 << 15)
++#define DISPC_IRQ_WAKEUP (1 << 16)
++
++enum omap_display_type {
++ OMAP_DISPLAY_TYPE_NONE = 0,
++ OMAP_DISPLAY_TYPE_DPI = 1 << 0,
++ OMAP_DISPLAY_TYPE_DBI = 1 << 1,
++ OMAP_DISPLAY_TYPE_SDI = 1 << 2,
++ OMAP_DISPLAY_TYPE_DSI = 1 << 3,
++ OMAP_DISPLAY_TYPE_VENC = 1 << 4,
++};
++
++enum omap_plane {
++ OMAP_DSS_GFX = 0,
++ OMAP_DSS_VIDEO1 = 1,
++ OMAP_DSS_VIDEO2 = 2
++};
++
++enum omap_channel {
++ OMAP_DSS_CHANNEL_LCD = 0,
++ OMAP_DSS_CHANNEL_DIGIT = 1,
++};
++
++enum omap_color_mode {
++ OMAP_DSS_COLOR_CLUT1 = 1 << 0, /* BITMAP 1 */
++ OMAP_DSS_COLOR_CLUT2 = 1 << 1, /* BITMAP 2 */
++ OMAP_DSS_COLOR_CLUT4 = 1 << 2, /* BITMAP 4 */
++ OMAP_DSS_COLOR_CLUT8 = 1 << 3, /* BITMAP 8 */
++ OMAP_DSS_COLOR_RGB12U = 1 << 4, /* RGB12, 16-bit container */
++ OMAP_DSS_COLOR_ARGB16 = 1 << 5, /* ARGB16 */
++ OMAP_DSS_COLOR_RGB16 = 1 << 6, /* RGB16 */
++ OMAP_DSS_COLOR_RGB24U = 1 << 7, /* RGB24, 32-bit container */
++ OMAP_DSS_COLOR_RGB24P = 1 << 8, /* RGB24, 24-bit container */
++ OMAP_DSS_COLOR_YUV2 = 1 << 9, /* YUV2 4:2:2 co-sited */
++ OMAP_DSS_COLOR_UYVY = 1 << 10, /* UYVY 4:2:2 co-sited */
++ OMAP_DSS_COLOR_ARGB32 = 1 << 11, /* ARGB32 */
++ OMAP_DSS_COLOR_RGBA32 = 1 << 12, /* RGBA32 */
++ OMAP_DSS_COLOR_RGBX32 = 1 << 13, /* RGBx32 */
++
++ OMAP_DSS_COLOR_GFX_OMAP3 =
++ OMAP_DSS_COLOR_CLUT1 | OMAP_DSS_COLOR_CLUT2 |
++ OMAP_DSS_COLOR_CLUT4 | OMAP_DSS_COLOR_CLUT8 |
++ OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 |
++ OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U |
++ OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_ARGB32 |
++ OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32,
++
++ OMAP_DSS_COLOR_VID_OMAP3 =
++ OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 |
++ OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U |
++ OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_ARGB32 |
++ OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32 |
++ OMAP_DSS_COLOR_YUV2 | OMAP_DSS_COLOR_UYVY,
++};
++
++enum omap_lcd_display_type {
++ OMAP_DSS_LCD_DISPLAY_STN,
++ OMAP_DSS_LCD_DISPLAY_TFT,
++};
++
++enum omap_dss_load_mode {
++ OMAP_DSS_LOAD_CLUT_AND_FRAME = 0,
++ OMAP_DSS_LOAD_CLUT_ONLY = 1,
++ OMAP_DSS_LOAD_FRAME_ONLY = 2,
++ OMAP_DSS_LOAD_CLUT_ONCE_FRAME = 3,
++};
++
++enum omap_dss_color_key_type {
++ OMAP_DSS_COLOR_KEY_GFX_DST = 0,
++ OMAP_DSS_COLOR_KEY_VID_SRC = 1,
++};
++
++enum omap_rfbi_te_mode {
++ OMAP_DSS_RFBI_TE_MODE_1 = 1,
++ OMAP_DSS_RFBI_TE_MODE_2 = 2,
++};
++
++enum omap_panel_config {
++ OMAP_DSS_LCD_IVS = 1<<0,
++ OMAP_DSS_LCD_IHS = 1<<1,
++ OMAP_DSS_LCD_IPC = 1<<2,
++ OMAP_DSS_LCD_IEO = 1<<3,
++ OMAP_DSS_LCD_RF = 1<<4,
++ OMAP_DSS_LCD_ONOFF = 1<<5,
++
++ OMAP_DSS_LCD_TFT = 1<<20,
++};
++
++enum omap_dss_venc_type {
++ OMAP_DSS_VENC_TYPE_COMPOSITE,
++ OMAP_DSS_VENC_TYPE_SVIDEO,
++};
++
++struct omap_display;
++struct omap_panel;
++struct omap_ctrl;
++
++/* RFBI */
++
++struct rfbi_timings {
++ int cs_on_time;
++ int cs_off_time;
++ int we_on_time;
++ int we_off_time;
++ int re_on_time;
++ int re_off_time;
++ int we_cycle_time;
++ int re_cycle_time;
++ int cs_pulse_width;
++ int access_time;
++
++ int clk_div;
++
++ u32 tim[5]; /* set by rfbi_convert_timings() */
++
++ int converted;
++};
++
++void omap_rfbi_write_command(const void *buf, u32 len);
++void omap_rfbi_read_data(void *buf, u32 len);
++void omap_rfbi_write_data(const void *buf, u32 len);
++void omap_rfbi_write_pixels(const void __iomem *buf, int scr_width,
++ u16 x, u16 y,
++ u16 w, u16 h);
++int omap_rfbi_enable_te(bool enable, unsigned line);
++int omap_rfbi_setup_te(enum omap_rfbi_te_mode mode,
++ unsigned hs_pulse_time, unsigned vs_pulse_time,
++ int hs_pol_inv, int vs_pol_inv, int extif_div);
++
++/* DSI */
++int dsi_vc_dcs_write(int channel, u8 *data, int len);
++int dsi_vc_dcs_write_nosync(int channel, u8 *data, int len);
++int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen);
++int dsi_vc_set_max_rx_packet_size(int channel, u16 len);
++int dsi_vc_send_null(int channel);
++
++/* Board specific data */
++struct omap_dss_display_config {
++ enum omap_display_type type;
++
++ union {
++ struct {
++ u8 data_lines;
++ } dpi;
++
++ struct {
++ u8 channel;
++ u8 data_lines;
++ } rfbi;
++
++ struct {
++ u8 datapairs;
++ } sdi;
++
++ struct {
++ u8 clk_lane;
++ u8 clk_pol;
++ u8 data1_lane;
++ u8 data1_pol;
++ u8 data2_lane;
++ u8 data2_pol;
++ unsigned long ddr_clk_hz;
++ } dsi;
++
++ struct {
++ enum omap_dss_venc_type type;
++ } venc;
++ } u;
++
++ int panel_reset_gpio;
++ int ctrl_reset_gpio;
++
++ const char *name; /* for debug */
++ const char *ctrl_name;
++ const char *panel_name;
++
++ void *panel_data;
++ void *ctrl_data;
++
++ /* platform specific enable/disable */
++ int (*panel_enable)(struct omap_display *display);
++ void (*panel_disable)(struct omap_display *display);
++ int (*ctrl_enable)(struct omap_display *display);
++ void (*ctrl_disable)(struct omap_display *display);
++ int (*set_backlight)(struct omap_display *display,
++ int level);
++};
++
++struct device;
++
++/* Board specific data */
++struct omap_dss_board_info {
++ unsigned (*get_last_off_on_transaction_id)(struct device *dev);
++ int (*dsi_power_up)(void);
++ void (*dsi_power_down)(void);
++ int num_displays;
++ struct omap_dss_display_config *displays[];
++};
++
++struct omap_ctrl {
++ struct module *owner;
++
++ const char *name;
++
++ int (*init)(struct omap_display *display);
++ void (*cleanup)(struct omap_display *display);
++ int (*enable)(struct omap_display *display);
++ void (*disable)(struct omap_display *display);
++ int (*suspend)(struct omap_display *display);
++ int (*resume)(struct omap_display *display);
++ void (*setup_update)(struct omap_display *display,
++ u16 x, u16 y, u16 w, u16 h);
++
++ int (*enable_te)(struct omap_display *display, bool enable);
++
++ u8 (*get_rotate)(struct omap_display *display);
++ int (*set_rotate)(struct omap_display *display, u8 rotate);
++
++ bool (*get_mirror)(struct omap_display *display);
++ int (*set_mirror)(struct omap_display *display, bool enable);
++
++ int (*run_test)(struct omap_display *display, int test);
++ int (*memory_read)(struct omap_display *display,
++ void *buf, size_t size,
++ u16 x, u16 y, u16 w, u16 h);
++
++ u8 pixel_size;
++
++ struct rfbi_timings timings;
++
++ void *priv;
++};
++
++struct omap_video_timings {
++ /* Unit: pixels */
++ u16 x_res;
++ /* Unit: pixels */
++ u16 y_res;
++ /* Unit: KHz */
++ u32 pixel_clock;
++ /* Unit: pixel clocks */
++ u16 hsw; /* Horizontal synchronization pulse width */
++ /* Unit: pixel clocks */
++ u16 hfp; /* Horizontal front porch */
++ /* Unit: pixel clocks */
++ u16 hbp; /* Horizontal back porch */
++ /* Unit: line clocks */
++ u16 vsw; /* Vertical synchronization pulse width */
++ /* Unit: line clocks */
++ u16 vfp; /* Vertical front porch */
++ /* Unit: line clocks */
++ u16 vbp; /* Vertical back porch */
++
++};
++
++#ifdef CONFIG_OMAP2_DSS_VENC
++/* Hardcoded timings for tv modes. Venc only uses these to
++ * identify the mode, and does not actually use the configs
++ * itself. However, the configs should be something that
++ * a normal monitor can also show */
++const extern struct omap_video_timings omap_dss_pal_timings;
++const extern struct omap_video_timings omap_dss_ntsc_timings;
++#endif
++
++struct omap_panel {
++ struct module *owner;
++
++ const char *name;
++
++ int (*init)(struct omap_display *display);
++ void (*cleanup)(struct omap_display *display);
++ int (*remove)(struct omap_display *display);
++ int (*enable)(struct omap_display *display);
++ void (*disable)(struct omap_display *display);
++ int (*suspend)(struct omap_display *display);
++ int (*resume)(struct omap_display *display);
++ int (*run_test)(struct omap_display *display, int test);
++
++ struct omap_video_timings timings;
++
++ int acbi; /* ac-bias pin transitions per interrupt */
++ /* Unit: line clocks */
++ int acb; /* ac-bias pin frequency */
++
++ enum omap_panel_config config;
++
++ u8 recommended_bpp;
++
++ void *priv;
++};
++
++/* XXX perhaps this should be removed */
++enum omap_dss_overlay_managers {
++ OMAP_DSS_OVL_MGR_LCD,
++ OMAP_DSS_OVL_MGR_TV,
++};
++
++struct omap_overlay_manager;
++
++struct omap_overlay_info {
++ bool enabled;
++
++ u32 paddr;
++ void __iomem *vaddr;
++ u16 screen_width;
++ u16 width;
++ u16 height;
++ enum omap_color_mode color_mode;
++ u8 rotation;
++ bool mirror;
++
++ u16 pos_x;
++ u16 pos_y;
++ u16 out_width; /* if 0, out_width == width */
++ u16 out_height; /* if 0, out_height == height */
++};
++
++enum omap_overlay_caps {
++ OMAP_DSS_OVL_CAP_SCALE = 1 << 0,
++ OMAP_DSS_OVL_CAP_DISPC = 1 << 1,
++};
++
++struct omap_overlay {
++ struct kobject kobj;
++ struct list_head list;
++
++ const char *name;
++ int id;
++ struct omap_overlay_manager *manager;
++ enum omap_color_mode supported_modes;
++ struct omap_overlay_info info;
++ enum omap_overlay_caps caps;
++
++ int (*set_manager)(struct omap_overlay *ovl,
++ struct omap_overlay_manager *mgr);
++ int (*unset_manager)(struct omap_overlay *ovl);
++
++ int (*set_overlay_info)(struct omap_overlay *ovl,
++ struct omap_overlay_info *info);
++ void (*get_overlay_info)(struct omap_overlay *ovl,
++ struct omap_overlay_info *info);
++};
++
++enum omap_overlay_manager_caps {
++ OMAP_DSS_OVL_MGR_CAP_DISPC = 1 << 0,
++};
++
++struct omap_overlay_manager {
++ struct kobject kobj;
++ struct list_head list;
++
++ const char *name;
++ int id;
++ enum omap_overlay_manager_caps caps;
++ struct omap_display *display;
++ int num_overlays;
++ struct omap_overlay **overlays;
++ enum omap_display_type supported_displays;
++
++ int (*set_display)(struct omap_overlay_manager *mgr,
++ struct omap_display *display);
++ int (*unset_display)(struct omap_overlay_manager *mgr);
++
++ int (*apply)(struct omap_overlay_manager *mgr);
++
++ void (*set_default_color)(struct omap_overlay_manager *mgr, u32 color);
++ void (*set_trans_key)(struct omap_overlay_manager *mgr,
++ enum omap_dss_color_key_type type,
++ u32 trans_key);
++ void (*enable_trans_key)(struct omap_overlay_manager *mgr,
++ bool enable);
++};
++
++enum omap_display_caps {
++ OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE = 1 << 0,
++};
++
++enum omap_dss_update_mode {
++ OMAP_DSS_UPDATE_DISABLED = 0,
++ OMAP_DSS_UPDATE_AUTO,
++ OMAP_DSS_UPDATE_MANUAL,
++};
++
++enum omap_dss_display_state {
++ OMAP_DSS_DISPLAY_DISABLED = 0,
++ OMAP_DSS_DISPLAY_ACTIVE,
++ OMAP_DSS_DISPLAY_SUSPENDED,
++};
++
++struct omap_display {
++ struct kobject kobj;
++ struct list_head list;
++
++ /*atomic_t ref_count;*/
++ int ref_count;
++ /* helper variable for driver suspend/resume */
++ int activate_after_resume;
++
++ enum omap_display_type type;
++ const char *name;
++
++ enum omap_display_caps caps;
++
++ struct omap_overlay_manager *manager;
++
++ enum omap_dss_display_state state;
++
++ struct omap_dss_display_config hw_config; /* board specific data */
++ struct omap_ctrl *ctrl; /* static common data */
++ struct omap_panel *panel; /* static common data */
++
++ int (*enable)(struct omap_display *display);
++ void (*disable)(struct omap_display *display);
++
++ int (*suspend)(struct omap_display *display);
++ int (*resume)(struct omap_display *display);
++
++ void (*get_resolution)(struct omap_display *display,
++ u16 *xres, u16 *yres);
++ int (*get_recommended_bpp)(struct omap_display *display);
++
++ int (*check_timings)(struct omap_display *display,
++ struct omap_video_timings *timings);
++ void (*set_timings)(struct omap_display *display,
++ struct omap_video_timings *timings);
++ void (*get_timings)(struct omap_display *display,
++ struct omap_video_timings *timings);
++ int (*update)(struct omap_display *display,
++ u16 x, u16 y, u16 w, u16 h);
++ int (*sync)(struct omap_display *display);
++ int (*wait_vsync)(struct omap_display *display);
++
++ int (*set_update_mode)(struct omap_display *display,
++ enum omap_dss_update_mode);
++ enum omap_dss_update_mode (*get_update_mode)
++ (struct omap_display *display);
++
++ int (*enable_te)(struct omap_display *display, bool enable);
++ int (*get_te)(struct omap_display *display);
++
++ u8 (*get_rotate)(struct omap_display *display);
++ int (*set_rotate)(struct omap_display *display, u8 rotate);
++
++ bool (*get_mirror)(struct omap_display *display);
++ int (*set_mirror)(struct omap_display *display, bool enable);
++
++ int (*run_test)(struct omap_display *display, int test);
++ int (*memory_read)(struct omap_display *display,
++ void *buf, size_t size,
++ u16 x, u16 y, u16 w, u16 h);
++
++ void (*configure_overlay)(struct omap_overlay *overlay);
++};
++
++int omap_dss_get_num_displays(void);
++struct omap_display *omap_dss_get_display(int no);
++void omap_dss_put_display(struct omap_display *display);
++
++void omap_dss_register_ctrl(struct omap_ctrl *ctrl);
++void omap_dss_unregister_ctrl(struct omap_ctrl *ctrl);
++
++void omap_dss_register_panel(struct omap_panel *panel);
++void omap_dss_unregister_panel(struct omap_panel *panel);
++
++int omap_dss_get_num_overlay_managers(void);
++struct omap_overlay_manager *omap_dss_get_overlay_manager(int num);
++
++int omap_dss_get_num_overlays(void);
++struct omap_overlay *omap_dss_get_overlay(int num);
++
++typedef void (*omap_dispc_isr_t) (void *arg, u32 mask);
++int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask);
++int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask);
++
++int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout);
++int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,
++ unsigned long timeout);
++
++#endif
+diff --git a/arch/arm/plat-omap/include/mach/vram.h b/arch/arm/plat-omap/include/mach/vram.h
+new file mode 100644
+index 0000000..f176562
+--- /dev/null
++++ b/arch/arm/plat-omap/include/mach/vram.h
+@@ -0,0 +1,33 @@
++/*
++ * File: arch/arm/plat-omap/include/mach/vram.h
++ *
++ * Copyright (C) 2009 Nokia Corporation
++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License as published by the
++ * Free Software Foundation; either version 2 of the License, or (at your
++ * option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License along
++ * with this program; if not, write to the Free Software Foundation, Inc.,
++ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++ */
++
++#ifndef __OMAPVRAM_H
++#define __OMAPVRAM_H
++
++#include <asm/types.h>
++
++extern int omap_vram_free(unsigned long paddr, size_t size);
++extern int omap_vram_alloc(int mtype, size_t size, unsigned long *paddr);
++extern int omap_vram_reserve(unsigned long paddr, size_t size);
++extern void omap2_set_sdram_vram(u32 size, u32 start);
++extern void omap2_set_sram_vram(u32 size, u32 start);
++
++#endif
+diff --git a/arch/arm/plat-omap/include/mach/vrfb.h b/arch/arm/plat-omap/include/mach/vrfb.h
+new file mode 100644
+index 0000000..2047862
+--- /dev/null
++++ b/arch/arm/plat-omap/include/mach/vrfb.h
+@@ -0,0 +1,47 @@
++/*
++ * File: arch/arm/plat-omap/include/mach/vrfb.h
++ *
++ * VRFB
++ *
++ * Copyright (C) 2009 Nokia Corporation
++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License as published by the
++ * Free Software Foundation; either version 2 of the License, or (at your
++ * option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License along
++ * with this program; if not, write to the Free Software Foundation, Inc.,
++ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
++ */
++
++#ifndef __VRFB_H
++#define __VRFB_H
++
++#define OMAP_VRFB_LINE_LEN 2048
++
++struct vrfb
++{
++ u8 context;
++ void __iomem *vaddr[4];
++ unsigned long paddr[4];
++ u16 xoffset;
++ u16 yoffset;
++ u8 bytespp;
++};
++
++extern int omap_vrfb_request_ctx(struct vrfb *vrfb);
++extern void omap_vrfb_release_ctx(struct vrfb *vrfb);
++extern void omap_vrfb_adjust_size(u16 *width, u16 *height,
++ u8 bytespp);
++extern void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
++ u16 width, u16 height,
++ u8 bytespp);
++
++#endif /* __VRFB_H */
+diff --git a/arch/arm/plat-omap/vram.c b/arch/arm/plat-omap/vram.c
+new file mode 100644
+index 0000000..f24a110
+--- /dev/null
++++ b/arch/arm/plat-omap/vram.c
+@@ -0,0 +1,615 @@
++/*
++ * linux/arch/arm/plat-omap/vram.c
++ *
++ * Copyright (C) 2008 Nokia Corporation
++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
++ *
++ * Some code and ideas taken from drivers/video/omap/ driver
++ * by Imre Deak.
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published by
++ * the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
++ * more details.
++ *
++ * You should have received a copy of the GNU General Public License along with
++ * this program. If not, see <http://www.gnu.org/licenses/>.
++ */
++
++/*#define DEBUG*/
++
++#include <linux/vmalloc.h>
++#include <linux/kernel.h>
++#include <linux/mm.h>
++#include <linux/list.h>
++#include <linux/dma-mapping.h>
++#include <linux/proc_fs.h>
++#include <linux/seq_file.h>
++#include <linux/bootmem.h>
++#include <linux/omapfb.h>
++
++#include <asm/setup.h>
++
++#include <mach/sram.h>
++#include <mach/vram.h>
++
++#ifdef DEBUG
++#define DBG(format, ...) printk(KERN_DEBUG "VRAM: " format, ## __VA_ARGS__)
++#else
++#define DBG(format, ...)
++#endif
++
++#define OMAP2_SRAM_START 0x40200000
++/* Maximum size, in reality this is smaller if SRAM is partially locked. */
++#define OMAP2_SRAM_SIZE 0xa0000 /* 640k */
++
++#define REG_MAP_SIZE(_page_cnt) \
++ ((_page_cnt + (sizeof(unsigned long) * 8) - 1) / 8)
++#define REG_MAP_PTR(_rg, _page_nr) \
++ (((_rg)->map) + (_page_nr) / (sizeof(unsigned long) * 8))
++#define REG_MAP_MASK(_page_nr) \
++ (1 << ((_page_nr) & (sizeof(unsigned long) * 8 - 1)))
++
++#if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
++
++/* postponed regions are used to temporarily store region information at boot
++ * time when we cannot yet allocate the region list */
++#define MAX_POSTPONED_REGIONS 10
++
++static int postponed_cnt __initdata;
++static struct {
++ unsigned long paddr;
++ size_t size;
++} postponed_regions[MAX_POSTPONED_REGIONS] __initdata;
++
++struct vram_alloc {
++ struct list_head list;
++ unsigned long paddr;
++ unsigned pages;
++};
++
++struct vram_region {
++ struct list_head list;
++ struct list_head alloc_list;
++ unsigned long paddr;
++ unsigned pages;
++};
++
++static DEFINE_MUTEX(region_mutex);
++static LIST_HEAD(region_list);
++
++static inline int region_mem_type(unsigned long paddr)
++{
++ if (paddr >= OMAP2_SRAM_START &&
++ paddr < OMAP2_SRAM_START + OMAP2_SRAM_SIZE)
++ return OMAPFB_MEMTYPE_SRAM;
++ else
++ return OMAPFB_MEMTYPE_SDRAM;
++}
++
++static struct vram_region *omap_vram_create_region(unsigned long paddr,
++ unsigned pages)
++{
++ struct vram_region *rm;
++
++ rm = kzalloc(sizeof(*rm), GFP_KERNEL);
++
++ if (rm) {
++ INIT_LIST_HEAD(&rm->alloc_list);
++ rm->paddr = paddr;
++ rm->pages = pages;
++ }
++
++ return rm;
++}
++
++#if 0
++static void omap_vram_free_region(struct vram_region *vr)
++{
++ list_del(&vr->list);
++ kfree(vr);
++}
++#endif
++
++static struct vram_alloc *omap_vram_create_allocation(struct vram_region *vr,
++ unsigned long paddr, unsigned pages)
++{
++ struct vram_alloc *va;
++ struct vram_alloc *new;
++
++ new = kzalloc(sizeof(*va), GFP_KERNEL);
++
++ if (!new)
++ return NULL;
++
++ new->paddr = paddr;
++ new->pages = pages;
++
++ list_for_each_entry(va, &vr->alloc_list, list) {
++ if (va->paddr > new->paddr)
++ break;
++ }
++
++ list_add_tail(&new->list, &va->list);
++
++ return new;
++}
++
++static void omap_vram_free_allocation(struct vram_alloc *va)
++{
++ list_del(&va->list);
++ kfree(va);
++}
++
++static __init int omap_vram_add_region_postponed(unsigned long paddr,
++ size_t size)
++{
++ if (postponed_cnt == MAX_POSTPONED_REGIONS)
++ return -ENOMEM;
++
++ postponed_regions[postponed_cnt].paddr = paddr;
++ postponed_regions[postponed_cnt].size = size;
++
++ ++postponed_cnt;
++
++ return 0;
++}
++
++/* add/remove_region can be exported if there's need to add/remove regions
++ * runtime */
++static int omap_vram_add_region(unsigned long paddr, size_t size)
++{
++ struct vram_region *rm;
++ unsigned pages;
++
++ DBG("adding region paddr %08lx size %d\n",
++ paddr, size);
++
++ size &= PAGE_MASK;
++ pages = size >> PAGE_SHIFT;
++
++ rm = omap_vram_create_region(paddr, pages);
++ if (rm == NULL)
++ return -ENOMEM;
++
++ list_add(&rm->list, &region_list);
++
++ return 0;
++}
++
++int omap_vram_free(unsigned long paddr, size_t size)
++{
++ struct vram_region *rm;
++ struct vram_alloc *alloc;
++ unsigned start, end;
++
++ DBG("free mem paddr %08lx size %d\n", paddr, size);
++
++ size = PAGE_ALIGN(size);
++
++ mutex_lock(&region_mutex);
++
++ list_for_each_entry(rm, &region_list, list) {
++ list_for_each_entry(alloc, &rm->alloc_list, list) {
++ start = alloc->paddr;
++ end = alloc->paddr + (alloc->pages >> PAGE_SHIFT);
++
++ if (start >= paddr && end < paddr + size)
++ goto found;
++ }
++ }
++
++ mutex_unlock(&region_mutex);
++ return -EINVAL;
++
++found:
++ omap_vram_free_allocation(alloc);
++
++ mutex_unlock(&region_mutex);
++ return 0;
++}
++EXPORT_SYMBOL(omap_vram_free);
++
++static int _omap_vram_reserve(unsigned long paddr, unsigned pages)
++{
++ struct vram_region *rm;
++ struct vram_alloc *alloc;
++ size_t size;
++
++ size = pages << PAGE_SHIFT;
++
++ list_for_each_entry(rm, &region_list, list) {
++ unsigned long start, end;
++
++ DBG("checking region %lx %d\n", rm->paddr, rm->pages);
++
++ if (region_mem_type(rm->paddr) != region_mem_type(paddr))
++ continue;
++
++ start = rm->paddr;
++ end = start + (rm->pages << PAGE_SHIFT) - 1;
++ if (start > paddr || end < paddr + size - 1)
++ continue;
++
++ DBG("block ok, checking allocs\n");
++
++ list_for_each_entry(alloc, &rm->alloc_list, list) {
++ end = alloc->paddr - 1;
++
++ if (start <= paddr && end >= paddr + size - 1)
++ goto found;
++
++ start = alloc->paddr + (alloc->pages << PAGE_SHIFT);
++ }
++
++ end = rm->paddr + (rm->pages << PAGE_SHIFT) - 1;
++
++ if (!(start <= paddr && end >= paddr + size - 1))
++ continue;
++found:
++ DBG("FOUND area start %lx, end %lx\n", start, end);
++
++ if (omap_vram_create_allocation(rm, paddr, pages) == NULL)
++ return -ENOMEM;
++
++ return 0;
++ }
++
++ return -ENOMEM;
++}
++
++int omap_vram_reserve(unsigned long paddr, size_t size)
++{
++ unsigned pages;
++ int r;
++
++ DBG("reserve mem paddr %08lx size %d\n", paddr, size);
++
++ size = PAGE_ALIGN(size);
++ pages = size >> PAGE_SHIFT;
++
++ mutex_lock(&region_mutex);
++
++ r = _omap_vram_reserve(paddr, pages);
++
++ mutex_unlock(&region_mutex);
++
++ return r;
++}
++EXPORT_SYMBOL(omap_vram_reserve);
++
++static int _omap_vram_alloc(int mtype, unsigned pages, unsigned long *paddr)
++{
++ struct vram_region *rm;
++ struct vram_alloc *alloc;
++
++ list_for_each_entry(rm, &region_list, list) {
++ unsigned long start, end;
++
++ DBG("checking region %lx %d\n", rm->paddr, rm->pages);
++
++ if (region_mem_type(rm->paddr) != mtype)
++ continue;
++
++ start = rm->paddr;
++
++ list_for_each_entry(alloc, &rm->alloc_list, list) {
++ end = alloc->paddr;
++
++ if (end - start >= pages << PAGE_SHIFT)
++ goto found;
++
++ start = alloc->paddr + (alloc->pages << PAGE_SHIFT);
++ }
++
++ end = rm->paddr + (rm->pages << PAGE_SHIFT);
++found:
++ if (end - start < pages << PAGE_SHIFT)
++ continue;
++
++ DBG("FOUND %lx, end %lx\n", start, end);
++
++ alloc = omap_vram_create_allocation(rm, start, pages);
++ if (alloc == NULL)
++ return -ENOMEM;
++
++ *paddr = start;
++
++ return 0;
++ }
++
++ return -ENOMEM;
++}
++
++int omap_vram_alloc(int mtype, size_t size, unsigned long *paddr)
++{
++ unsigned pages;
++ int r;
++
++ BUG_ON(mtype > OMAPFB_MEMTYPE_MAX || !size);
++
++ DBG("alloc mem type %d size %d\n", mtype, size);
++
++ size = PAGE_ALIGN(size);
++ pages = size >> PAGE_SHIFT;
++
++ mutex_lock(&region_mutex);
++
++ r = _omap_vram_alloc(mtype, pages, paddr);
++
++ mutex_unlock(&region_mutex);
++
++ return r;
++}
++EXPORT_SYMBOL(omap_vram_alloc);
++
++#ifdef CONFIG_PROC_FS
++static void *r_next(struct seq_file *m, void *v, loff_t *pos)
++{
++ struct list_head *l = v;
++
++ (*pos)++;
++
++ if (list_is_last(l, &region_list))
++ return NULL;
++
++ return l->next;
++}
++
++static void *r_start(struct seq_file *m, loff_t *pos)
++{
++ loff_t p = *pos;
++ struct list_head *l = &region_list;
++
++ mutex_lock(&region_mutex);
++
++ do {
++ l = l->next;
++ if (l == &region_list)
++ return NULL;
++ } while (p--);
++
++ return l;
++}
++
++static void r_stop(struct seq_file *m, void *v)
++{
++ mutex_unlock(&region_mutex);
++}
++
++static int r_show(struct seq_file *m, void *v)
++{
++ struct vram_region *vr;
++ struct vram_alloc *va;
++ unsigned size;
++
++ vr = list_entry(v, struct vram_region, list);
++
++ size = vr->pages << PAGE_SHIFT;
++
++ seq_printf(m, "%08lx-%08lx (%d bytes)\n",
++ vr->paddr, vr->paddr + size - 1,
++ size);
++
++ list_for_each_entry(va, &vr->alloc_list, list) {
++ size = va->pages << PAGE_SHIFT;
++ seq_printf(m, " %08lx-%08lx (%d bytes)\n",
++ va->paddr, va->paddr + size - 1,
++ size);
++ }
++
++
++
++ return 0;
++}
++
++static const struct seq_operations resource_op = {
++ .start = r_start,
++ .next = r_next,
++ .stop = r_stop,
++ .show = r_show,
++};
++
++static int vram_open(struct inode *inode, struct file *file)
++{
++ return seq_open(file, &resource_op);
++}
++
++static const struct file_operations proc_vram_operations = {
++ .open = vram_open,
++ .read = seq_read,
++ .llseek = seq_lseek,
++ .release = seq_release,
++};
++
++static int __init omap_vram_create_proc(void)
++{
++ proc_create("omap-vram", 0, NULL, &proc_vram_operations);
++
++ return 0;
++}
++#endif
++
++static __init int omap_vram_init(void)
++{
++ int i, r;
++
++ for (i = 0; i < postponed_cnt; i++)
++ omap_vram_add_region(postponed_regions[i].paddr,
++ postponed_regions[i].size);
++
++#ifdef CONFIG_PROC_FS
++ r = omap_vram_create_proc();
++ if (r)
++ return -ENOMEM;
++#endif
++
++ return 0;
++}
++
++arch_initcall(omap_vram_init);
++
++/* boottime vram alloc stuff */
++
++/* set from board file */
++static u32 omapfb_sram_vram_start __initdata;
++static u32 omapfb_sram_vram_size __initdata;
++
++/* set from board file */
++static u32 omapfb_sdram_vram_start __initdata;
++static u32 omapfb_sdram_vram_size __initdata;
++
++/* set from kernel cmdline */
++static u32 omapfb_def_sdram_vram_size __initdata;
++static u32 omapfb_def_sdram_vram_start __initdata;
++
++static void __init omapfb_early_vram(char **p)
++{
++ omapfb_def_sdram_vram_size = memparse(*p, p);
++ if (**p == ',')
++ omapfb_def_sdram_vram_start = simple_strtoul((*p) + 1, p, 16);
++
++ printk("omapfb_early_vram, %d, 0x%x\n",
++ omapfb_def_sdram_vram_size,
++ omapfb_def_sdram_vram_start);
++}
++__early_param("vram=", omapfb_early_vram);
++
++/*
++ * Called from map_io. We need to call to this early enough so that we
++ * can reserve the fixed SDRAM regions before VM could get hold of them.
++ */
++void __init omapfb_reserve_sdram(void)
++{
++ struct bootmem_data *bdata;
++ unsigned long sdram_start, sdram_size;
++ u32 paddr;
++ u32 size = 0;
++
++ /* cmdline arg overrides the board file definition */
++ if (omapfb_def_sdram_vram_size) {
++ size = omapfb_def_sdram_vram_size;
++ paddr = omapfb_def_sdram_vram_start;
++ }
++
++ if (!size) {
++ size = omapfb_sdram_vram_size;
++ paddr = omapfb_sdram_vram_start;
++ }
++
++#ifdef CONFIG_OMAP2_DSS_VRAM_SIZE
++ if (!size) {
++ size = CONFIG_OMAP2_DSS_VRAM_SIZE * 1024 * 1024;
++ paddr = 0;
++ }
++#endif
++
++ if (!size)
++ return;
++
++ size = PAGE_ALIGN(size);
++
++ bdata = NODE_DATA(0)->bdata;
++ sdram_start = bdata->node_min_pfn << PAGE_SHIFT;
++ sdram_size = (bdata->node_low_pfn << PAGE_SHIFT) - sdram_start;
++
++ if (paddr) {
++ if ((paddr & ~PAGE_MASK) || paddr < sdram_start ||
++ paddr + size > sdram_start + sdram_size) {
++ printk(KERN_ERR "Illegal SDRAM region for VRAM\n");
++ return;
++ }
++
++ reserve_bootmem(paddr, size, BOOTMEM_DEFAULT);
++ } else {
++ if (size > sdram_size) {
++ printk(KERN_ERR "Illegal SDRAM size for VRAM\n");
++ return;
++ }
++
++ paddr = virt_to_phys(alloc_bootmem_pages(size));
++ BUG_ON(paddr & ~PAGE_MASK);
++ }
++
++ omap_vram_add_region_postponed(paddr, size);
++
++ pr_info("Reserving %u bytes SDRAM for VRAM\n", size);
++}
++
++/*
++ * Called at sram init time, before anything is pushed to the SRAM stack.
++ * Because of the stack scheme, we will allocate everything from the
++ * start of the lowest address region to the end of SRAM. This will also
++ * include padding for page alignment and possible holes between regions.
++ *
++ * As opposed to the SDRAM case, we'll also do any dynamic allocations at
++ * this point, since the driver built as a module would have problem with
++ * freeing / reallocating the regions.
++ */
++unsigned long __init omapfb_reserve_sram(unsigned long sram_pstart,
++ unsigned long sram_vstart,
++ unsigned long sram_size,
++ unsigned long pstart_avail,
++ unsigned long size_avail)
++{
++ unsigned long pend_avail;
++ unsigned long reserved;
++ u32 paddr;
++ u32 size;
++
++ paddr = omapfb_sram_vram_start;
++ size = omapfb_sram_vram_size;
++
++ if (!size)
++ return 0;
++
++ reserved = 0;
++ pend_avail = pstart_avail + size_avail;
++
++ if (!paddr) {
++ /* Dynamic allocation */
++ if ((size_avail & PAGE_MASK) < size) {
++ printk(KERN_ERR "Not enough SRAM for VRAM\n");
++ return 0;
++ }
++ size_avail = (size_avail - size) & PAGE_MASK;
++ paddr = pstart_avail + size_avail;
++ }
++
++ if (paddr < sram_pstart ||
++ paddr + size > sram_pstart + sram_size) {
++ printk(KERN_ERR "Illegal SRAM region for VRAM\n");
++ return 0;
++ }
++
++ /* Reserve everything above the start of the region. */
++ if (pend_avail - paddr > reserved)
++ reserved = pend_avail - paddr;
++ size_avail = pend_avail - reserved - pstart_avail;
++
++ omap_vram_add_region_postponed(paddr, size);
++
++ if (reserved)
++ pr_info("Reserving %lu bytes SRAM for VRAM\n", reserved);
++
++ return reserved;
++}
++
++void __init omap2_set_sdram_vram(u32 size, u32 start)
++{
++ omapfb_sdram_vram_start = start;
++ omapfb_sdram_vram_size = size;
++}
++
++void __init omap2_set_sram_vram(u32 size, u32 start)
++{
++ omapfb_sram_vram_start = start;
++ omapfb_sram_vram_size = size;
++}
++
++#endif
++
+diff --git a/arch/arm/plat-omap/vrfb.c b/arch/arm/plat-omap/vrfb.c
+new file mode 100644
+index 0000000..7e0f8fc
+--- /dev/null
++++ b/arch/arm/plat-omap/vrfb.c
+@@ -0,0 +1,159 @@
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/ioport.h>
++#include <asm/io.h>
++
++#include <mach/io.h>
++#include <mach/vrfb.h>
++
++/*#define DEBUG*/
++
++#ifdef DEBUG
++#define DBG(format, ...) printk(KERN_DEBUG "VRFB: " format, ## __VA_ARGS__)
++#else
++#define DBG(format, ...)
++#endif
++
++#define SMS_ROT_VIRT_BASE(context, rot) \
++ (((context >= 4) ? 0xD0000000 : 0x70000000) \
++ | 0x4000000 * (context) \
++ | 0x1000000 * (rot))
++
++#define OMAP_VRFB_SIZE (2048 * 2048 * 4)
++
++#define VRFB_PAGE_WIDTH_EXP 5 /* Assuming SDRAM pagesize= 1024 */
++#define VRFB_PAGE_HEIGHT_EXP 5 /* 1024 = 2^5 * 2^5 */
++#define VRFB_PAGE_WIDTH (1 << VRFB_PAGE_WIDTH_EXP)
++#define VRFB_PAGE_HEIGHT (1 << VRFB_PAGE_HEIGHT_EXP)
++#define SMS_IMAGEHEIGHT_OFFSET 16
++#define SMS_IMAGEWIDTH_OFFSET 0
++#define SMS_PH_OFFSET 8
++#define SMS_PW_OFFSET 4
++#define SMS_PS_OFFSET 0
++
++#define OMAP_SMS_BASE 0x6C000000
++#define SMS_ROT_CONTROL(context) (OMAP_SMS_BASE + 0x180 + 0x10 * context)
++#define SMS_ROT_SIZE(context) (OMAP_SMS_BASE + 0x184 + 0x10 * context)
++#define SMS_ROT_PHYSICAL_BA(context) (OMAP_SMS_BASE + 0x188 + 0x10 * context)
++
++#define VRFB_NUM_CTXS 12
++/* bitmap of reserved contexts */
++static unsigned ctx_map;
++
++void omap_vrfb_adjust_size(u16 *width, u16 *height,
++ u8 bytespp)
++{
++ *width = ALIGN(*width * bytespp, VRFB_PAGE_WIDTH) / bytespp;
++ *height = ALIGN(*height, VRFB_PAGE_HEIGHT);
++}
++EXPORT_SYMBOL(omap_vrfb_adjust_size);
++
++void omap_vrfb_setup(struct vrfb *vrfb, unsigned long paddr,
++ u16 width, u16 height,
++ u8 bytespp)
++{
++ unsigned pixel_size_exp;
++ u16 vrfb_width;
++ u16 vrfb_height;
++ u8 ctx = vrfb->context;
++
++ DBG("omapfb_set_vrfb(%d, %lx, %dx%d, %d)\n", ctx, paddr,
++ width, height, bytespp);
++
++ if (bytespp == 4)
++ pixel_size_exp = 2;
++ else if (bytespp == 2)
++ pixel_size_exp = 1;
++ else
++ BUG();
++
++ vrfb_width = ALIGN(width * bytespp, VRFB_PAGE_WIDTH) / bytespp;
++ vrfb_height = ALIGN(height, VRFB_PAGE_HEIGHT);
++
++ DBG("vrfb w %u, h %u\n", vrfb_width, vrfb_height);
++
++ omap_writel(paddr, SMS_ROT_PHYSICAL_BA(ctx));
++ omap_writel((vrfb_width << SMS_IMAGEWIDTH_OFFSET) |
++ (vrfb_height << SMS_IMAGEHEIGHT_OFFSET),
++ SMS_ROT_SIZE(ctx));
++
++ omap_writel(pixel_size_exp << SMS_PS_OFFSET |
++ VRFB_PAGE_WIDTH_EXP << SMS_PW_OFFSET |
++ VRFB_PAGE_HEIGHT_EXP << SMS_PH_OFFSET,
++ SMS_ROT_CONTROL(ctx));
++
++ DBG("vrfb offset pixels %d, %d\n",
++ vrfb_width - width, vrfb_height - height);
++
++ vrfb->xoffset = vrfb_width - width;
++ vrfb->yoffset = vrfb_height - height;
++ vrfb->bytespp = bytespp;
++}
++EXPORT_SYMBOL(omap_vrfb_setup);
++
++void omap_vrfb_release_ctx(struct vrfb *vrfb)
++{
++ int rot;
++
++ if (vrfb->context == 0xff)
++ return;
++
++ DBG("release ctx %d\n", vrfb->context);
++
++ ctx_map &= ~(1 << vrfb->context);
++
++ for (rot = 0; rot < 4; ++rot) {
++ if(vrfb->paddr[rot]) {
++ release_mem_region(vrfb->paddr[rot], OMAP_VRFB_SIZE);
++ vrfb->paddr[rot] = 0;
++ }
++ }
++
++ vrfb->context = 0xff;
++}
++EXPORT_SYMBOL(omap_vrfb_release_ctx);
++
++int omap_vrfb_request_ctx(struct vrfb *vrfb)
++{
++ int rot;
++ u32 paddr;
++ u8 ctx;
++
++ DBG("request ctx\n");
++
++ for (ctx = 0; ctx < VRFB_NUM_CTXS; ++ctx)
++ if ((ctx_map & (1 << ctx)) == 0)
++ break;
++
++ if (ctx == VRFB_NUM_CTXS) {
++ printk(KERN_ERR "vrfb: no free contexts\n");
++ return -EBUSY;
++ }
++
++ DBG("found free ctx %d\n", ctx);
++
++ ctx_map |= 1 << ctx;
++
++ memset(vrfb, 0, sizeof(*vrfb));
++
++ vrfb->context = ctx;
++
++ for (rot = 0; rot < 4; ++rot) {
++ paddr = SMS_ROT_VIRT_BASE(ctx, rot);
++ if (!request_mem_region(paddr, OMAP_VRFB_SIZE, "vrfb")) {
++ printk(KERN_ERR "vrfb: failed to reserve VRFB "
++ "area for ctx %d, rotation %d\n",
++ ctx, rot * 90);
++ omap_vrfb_release_ctx(vrfb);
++ return -ENOMEM;
++ }
++
++ vrfb->paddr[rot] = paddr;
++
++ DBG("VRFB %d/%d: %lx\n", ctx, rot*90, vrfb->paddr[rot]);
++ }
++
++ return 0;
++}
++EXPORT_SYMBOL(omap_vrfb_request_ctx);
++
+diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
+index fb19803..8b3752b 100644
+--- a/drivers/video/Kconfig
++++ b/drivers/video/Kconfig
+@@ -2132,6 +2132,7 @@ config FB_MX3
+ an LCD display with your i.MX31 system, say Y here.
+
+ source "drivers/video/omap/Kconfig"
++source "drivers/video/omap2/Kconfig"
+
+ source "drivers/video/backlight/Kconfig"
+ source "drivers/video/display/Kconfig"
+diff --git a/drivers/video/Makefile b/drivers/video/Makefile
+index 2a998ca..1db8dd4 100644
+--- a/drivers/video/Makefile
++++ b/drivers/video/Makefile
+@@ -120,6 +120,7 @@ obj-$(CONFIG_FB_SM501) += sm501fb.o
+ obj-$(CONFIG_FB_XILINX) += xilinxfb.o
+ obj-$(CONFIG_FB_SH_MOBILE_LCDC) += sh_mobile_lcdcfb.o
+ obj-$(CONFIG_FB_OMAP) += omap/
++obj-$(CONFIG_OMAP2_DSS) += omap2/
+ obj-$(CONFIG_XEN_FBDEV_FRONTEND) += xen-fbfront.o
+ obj-$(CONFIG_FB_CARMINE) += carminefb.o
+ obj-$(CONFIG_FB_MB862XX) += mb862xx/
+diff --git a/drivers/video/omap2/Kconfig b/drivers/video/omap2/Kconfig
+new file mode 100644
+index 0000000..89bf210
+--- /dev/null
++++ b/drivers/video/omap2/Kconfig
+@@ -0,0 +1,3 @@
++source "drivers/video/omap2/dss/Kconfig"
++source "drivers/video/omap2/displays/Kconfig"
++source "drivers/video/omap2/omapfb/Kconfig"
+diff --git a/drivers/video/omap2/Makefile b/drivers/video/omap2/Makefile
+new file mode 100644
+index 0000000..72134db
+--- /dev/null
++++ b/drivers/video/omap2/Makefile
+@@ -0,0 +1,4 @@
++# OMAP2/3 Display Subsystem
++obj-y += dss/
++obj-y += displays/
++obj-y += omapfb/
+diff --git a/drivers/video/omap2/dss/Kconfig b/drivers/video/omap2/dss/Kconfig
+new file mode 100644
+index 0000000..f2ce068
+--- /dev/null
++++ b/drivers/video/omap2/dss/Kconfig
+@@ -0,0 +1,89 @@
++menuconfig OMAP2_DSS
++ tristate "OMAP2/3 Display Subsystem support (EXPERIMENTAL)"
++ depends on ARCH_OMAP2 || ARCH_OMAP3
++ help
++ OMAP2/3 Display Subsystem support.
++
++if OMAP2_DSS
++
++config OMAP2_DSS_VRAM_SIZE
++ int "VRAM size (MB)"
++ range 0 32
++ default 4
++ help
++ The amount of SDRAM to reserve at boot time for video RAM use.
++ This VRAM will be used by omapfb and other drivers that need
++ large continuous RAM area for video use.
++
++ You can also set this with "vram=<bytes>" kernel argument, or
++ in the board file.
++
++config OMAP2_DSS_DEBUG_SUPPORT
++ bool "Debug support"
++ default y
++ help
++ This enables debug messages. You need to enable printing
++ with 'debug' module parameter.
++
++config OMAP2_DSS_RFBI
++ bool "RFBI support"
++ default n
++ help
++ MIPI DBI, or RFBI (Remote Framebuffer Interface), support.
++
++config OMAP2_DSS_VENC
++ bool "VENC support"
++ default y
++ help
++ OMAP Video Encoder support.
++
++config OMAP2_DSS_SDI
++ bool "SDI support"
++ depends on ARCH_OMAP3
++ default n
++ help
++ SDI (Serial Display Interface) support.
++
++config OMAP2_DSS_DSI
++ bool "DSI support"
++ depends on ARCH_OMAP3
++ default n
++ help
++ MIPI DSI support.
++
++config OMAP2_DSS_USE_DSI_PLL
++ bool "Use DSI PLL for PCLK (EXPERIMENTAL)"
++ default n
++ depends on OMAP2_DSS_DSI
++ help
++ Use DSI PLL to generate pixel clock. Currently only for DPI output.
++ DSI PLL can be used to generate higher and more precise pixel clocks.
++
++config OMAP2_DSS_FAKE_VSYNC
++ bool "Fake VSYNC irq from manual update displays"
++ default n
++ help
++ If this is selected, DSI will generate a fake DISPC VSYNC interrupt
++ when DSI has sent a frame. This is only needed with DSI or RFBI
++ displays using manual mode, and you want VSYNC to, for example,
++ time animation.
++
++config OMAP2_DSS_MIN_FCK_PER_PCK
++ int "Minimum FCK/PCK ratio (for scaling)"
++ range 0 32
++ default 0
++ help
++ This can be used to adjust the minimum FCK/PCK ratio.
++
++ With this you can make sure that DISPC FCK is at least
++ n x PCK. Video plane scaling requires higher FCK than
++ normally.
++
++ If this is set to 0, there's no extra constraint on the
++ DISPC FCK. However, the FCK will at minimum be
++ 2xPCK (if active matrix) or 3xPCK (if passive matrix).
++
++ Max FCK is 173MHz, so this doesn't work if your PCK
++ is very high.
++
++endif
+diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile
+new file mode 100644
+index 0000000..980c72c
+--- /dev/null
++++ b/drivers/video/omap2/dss/Makefile
+@@ -0,0 +1,6 @@
++obj-$(CONFIG_OMAP2_DSS) += omapdss.o
++omapdss-y := core.o dss.o dispc.o dpi.o display.o manager.o overlay.o
++omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o
++omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o
++omapdss-$(CONFIG_OMAP2_DSS_SDI) += sdi.o
++omapdss-$(CONFIG_OMAP2_DSS_DSI) += dsi.o
+diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
+new file mode 100644
+index 0000000..ae7cd06
+--- /dev/null
++++ b/drivers/video/omap2/dss/core.c
+@@ -0,0 +1,641 @@
++/*
++ * linux/drivers/video/omap2/dss/core.c
++ *
++ * Copyright (C) 2009 Nokia Corporation
++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
++ *
++ * Some code and ideas taken from drivers/video/omap/ driver
++ * by Imre Deak.
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published by
++ * the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
++ * more details.
++ *
++ * You should have received a copy of the GNU General Public License along with
++ * this program. If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#define DSS_SUBSYS_NAME "CORE"
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/clk.h>
++#include <linux/err.h>
++#include <linux/platform_device.h>
++#include <linux/seq_file.h>
++#include <linux/debugfs.h>
++#include <linux/io.h>
++
++#include <mach/display.h>
++#include <mach/clock.h>
++
++#include "dss.h"
++
++static struct {
++ struct platform_device *pdev;
++ unsigned ctx_id;
++
++ struct clk *dss_ick;
++ struct clk *dss1_fck;
++ struct clk *dss2_fck;
++ struct clk *dss_54m_fck;
++ struct clk *dss_96m_fck;
++ unsigned num_clks_enabled;
++} core;
++
++static void dss_clk_enable_all_no_ctx(void);
++static void dss_clk_disable_all_no_ctx(void);
++static void dss_clk_enable_no_ctx(enum dss_clock clks);
++static void dss_clk_disable_no_ctx(enum dss_clock clks);
++
++static char *def_disp_name;
++module_param_named(def_disp, def_disp_name, charp, 0);
++MODULE_PARM_DESC(def_disp_name, "default display name");
++
++#ifdef DEBUG
++unsigned int dss_debug;
++module_param_named(debug, dss_debug, bool, 0644);
++#endif
++
++/* CONTEXT */
++static unsigned dss_get_ctx_id(void)
++{
++ struct omap_dss_board_info *pdata = core.pdev->dev.platform_data;
++
++ if (!pdata->get_last_off_on_transaction_id)
++ return 0;
++
++ return pdata->get_last_off_on_transaction_id(&core.pdev->dev);
++}
++
++int dss_need_ctx_restore(void)
++{
++ int id = dss_get_ctx_id();
++
++ if (id != core.ctx_id) {
++ DSSDBG("ctx id %u -> id %u\n",
++ core.ctx_id, id);
++ core.ctx_id = id;
++ return 1;
++ } else {
++ return 0;
++ }
++}
++
++static void save_all_ctx(void)
++{
++ DSSDBG("save context\n");
++
++ dss_clk_enable_no_ctx(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ dss_save_context();
++ dispc_save_context();
++#ifdef CONFIG_OMAP2_DSS_DSI
++ dsi_save_context();
++#endif
++
++ dss_clk_disable_no_ctx(DSS_CLK_ICK | DSS_CLK_FCK1);
++}
++
++static void restore_all_ctx(void)
++{
++ DSSDBG("restore context\n");
++
++ dss_clk_enable_all_no_ctx();
++
++ dss_restore_context();
++ dispc_restore_context();
++#ifdef CONFIG_OMAP2_DSS_DSI
++ dsi_restore_context();
++#endif
++
++ dss_clk_disable_all_no_ctx();
++}
++
++/* CLOCKS */
++void dss_dump_clocks(struct seq_file *s)
++{
++ int i;
++ struct clk *clocks[5] = {
++ core.dss_ick,
++ core.dss1_fck,
++ core.dss2_fck,
++ core.dss_54m_fck,
++ core.dss_96m_fck
++ };
++
++ seq_printf(s, "- dss -\n");
++
++ seq_printf(s, "internal clk count\t%u\n", core.num_clks_enabled);
++
++ for (i = 0; i < 5; i++) {
++ if (!clocks[i])
++ continue;
++ seq_printf(s, "%-15s\t%lu\t%d\n",
++ clocks[i]->name,
++ clk_get_rate(clocks[i]),
++ clocks[i]->usecount);
++ }
++}
++
++static int dss_get_clocks(void)
++{
++ const struct {
++ struct clk **clock;
++ char *omap2_name;
++ char *omap3_name;
++ } clocks[5] = {
++ { &core.dss_ick, "dss_ick", "dss_ick" }, /* L3 & L4 ick */
++ { &core.dss1_fck, "dss1_fck", "dss1_alwon_fck" },
++ { &core.dss2_fck, "dss2_fck", "dss2_alwon_fck" },
++ { &core.dss_54m_fck, "dss_54m_fck", "dss_tv_fck" },
++ { &core.dss_96m_fck, NULL, "dss_96m_fck" },
++ };
++
++ int r = 0;
++ int i;
++ const int num_clocks = 5;
++
++ for (i = 0; i < num_clocks; i++)
++ *clocks[i].clock = NULL;
++
++ for (i = 0; i < num_clocks; i++) {
++ struct clk *clk;
++ const char *clk_name;
++
++ clk_name = cpu_is_omap34xx() ? clocks[i].omap3_name
++ : clocks[i].omap2_name;
++
++ if (!clk_name)
++ continue;
++
++ clk = clk_get(NULL, clk_name);
++
++ if (IS_ERR(clk)) {
++ DSSERR("can't get clock %s", clk_name);
++ r = PTR_ERR(clk);
++ goto err;
++ }
++
++ DSSDBG("clk %s, rate %ld\n",
++ clk_name, clk_get_rate(clk));
++
++ *clocks[i].clock = clk;
++ }
++
++ return 0;
++
++err:
++ for (i = 0; i < num_clocks; i++) {
++ if (!IS_ERR(*clocks[i].clock))
++ clk_put(*clocks[i].clock);
++ }
++
++ return r;
++}
++
++static void dss_put_clocks(void)
++{
++ if (core.dss_96m_fck)
++ clk_put(core.dss_96m_fck);
++ clk_put(core.dss_54m_fck);
++ clk_put(core.dss1_fck);
++ clk_put(core.dss2_fck);
++ clk_put(core.dss_ick);
++}
++
++unsigned long dss_clk_get_rate(enum dss_clock clk)
++{
++ switch (clk) {
++ case DSS_CLK_ICK:
++ return clk_get_rate(core.dss_ick);
++ case DSS_CLK_FCK1:
++ return clk_get_rate(core.dss1_fck);
++ case DSS_CLK_FCK2:
++ return clk_get_rate(core.dss2_fck);
++ case DSS_CLK_54M:
++ return clk_get_rate(core.dss_54m_fck);
++ case DSS_CLK_96M:
++ return clk_get_rate(core.dss_96m_fck);
++ }
++
++ BUG();
++ return 0;
++}
++
++static unsigned count_clk_bits(enum dss_clock clks)
++{
++ unsigned num_clks = 0;
++
++ if (clks & DSS_CLK_ICK)
++ ++num_clks;
++ if (clks & DSS_CLK_FCK1)
++ ++num_clks;
++ if (clks & DSS_CLK_FCK2)
++ ++num_clks;
++ if (clks & DSS_CLK_54M)
++ ++num_clks;
++ if (clks & DSS_CLK_96M)
++ ++num_clks;
++
++ return num_clks;
++}
++
++static void dss_clk_enable_no_ctx(enum dss_clock clks)
++{
++ unsigned num_clks = count_clk_bits(clks);
++
++ if (clks & DSS_CLK_ICK)
++ clk_enable(core.dss_ick);
++ if (clks & DSS_CLK_FCK1)
++ clk_enable(core.dss1_fck);
++ if (clks & DSS_CLK_FCK2)
++ clk_enable(core.dss2_fck);
++ if (clks & DSS_CLK_54M)
++ clk_enable(core.dss_54m_fck);
++ if (clks & DSS_CLK_96M)
++ clk_enable(core.dss_96m_fck);
++
++ core.num_clks_enabled += num_clks;
++}
++
++void dss_clk_enable(enum dss_clock clks)
++{
++ dss_clk_enable_no_ctx(clks);
++
++ if (cpu_is_omap34xx() && dss_need_ctx_restore())
++ restore_all_ctx();
++}
++
++static void dss_clk_disable_no_ctx(enum dss_clock clks)
++{
++ unsigned num_clks = count_clk_bits(clks);
++
++ if (clks & DSS_CLK_ICK)
++ clk_disable(core.dss_ick);
++ if (clks & DSS_CLK_FCK1)
++ clk_disable(core.dss1_fck);
++ if (clks & DSS_CLK_FCK2)
++ clk_disable(core.dss2_fck);
++ if (clks & DSS_CLK_54M)
++ clk_disable(core.dss_54m_fck);
++ if (clks & DSS_CLK_96M)
++ clk_disable(core.dss_96m_fck);
++
++ core.num_clks_enabled -= num_clks;
++}
++
++void dss_clk_disable(enum dss_clock clks)
++{
++ if (cpu_is_omap34xx()) {
++ unsigned num_clks = count_clk_bits(clks);
++
++ BUG_ON(core.num_clks_enabled < num_clks);
++
++ if (core.num_clks_enabled == num_clks)
++ save_all_ctx();
++ }
++
++ dss_clk_disable_no_ctx(clks);
++}
++
++static void dss_clk_enable_all_no_ctx(void)
++{
++ enum dss_clock clks;
++
++ clks = DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_FCK2 | DSS_CLK_54M;
++ if (cpu_is_omap34xx())
++ clks |= DSS_CLK_96M;
++ dss_clk_enable_no_ctx(clks);
++}
++
++static void dss_clk_disable_all_no_ctx(void)
++{
++ enum dss_clock clks;
++
++ clks = DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_FCK2 | DSS_CLK_54M;
++ if (cpu_is_omap34xx())
++ clks |= DSS_CLK_96M;
++ dss_clk_disable_no_ctx(clks);
++}
++
++static void dss_clk_disable_all(void)
++{
++ enum dss_clock clks;
++
++ clks = DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_FCK2 | DSS_CLK_54M;
++ if (cpu_is_omap34xx())
++ clks |= DSS_CLK_96M;
++ dss_clk_disable(clks);
++}
++
++/* DEBUGFS */
++#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT)
++static void dss_debug_dump_clocks(struct seq_file *s)
++{
++ dss_dump_clocks(s);
++ dispc_dump_clocks(s);
++#ifdef CONFIG_OMAP2_DSS_DSI
++ dsi_dump_clocks(s);
++#endif
++}
++
++static int dss_debug_show(struct seq_file *s, void *unused)
++{
++ void (*func)(struct seq_file *) = s->private;
++ func(s);
++ return 0;
++}
++
++static int dss_debug_open(struct inode *inode, struct file *file)
++{
++ return single_open(file, dss_debug_show, inode->i_private);
++}
++
++static const struct file_operations dss_debug_fops = {
++ .open = dss_debug_open,
++ .read = seq_read,
++ .llseek = seq_lseek,
++ .release = single_release,
++};
++
++static struct dentry *dss_debugfs_dir;
++
++static int dss_initialize_debugfs(void)
++{
++ dss_debugfs_dir = debugfs_create_dir("omapdss", NULL);
++ if (IS_ERR(dss_debugfs_dir)) {
++ int err = PTR_ERR(dss_debugfs_dir);
++ dss_debugfs_dir = NULL;
++ return err;
++ }
++
++ debugfs_create_file("clk", S_IRUGO, dss_debugfs_dir,
++ &dss_debug_dump_clocks, &dss_debug_fops);
++
++ debugfs_create_file("dss", S_IRUGO, dss_debugfs_dir,
++ &dss_dump_regs, &dss_debug_fops);
++ debugfs_create_file("dispc", S_IRUGO, dss_debugfs_dir,
++ &dispc_dump_regs, &dss_debug_fops);
++#ifdef CONFIG_OMAP2_DSS_RFBI
++ debugfs_create_file("rfbi", S_IRUGO, dss_debugfs_dir,
++ &rfbi_dump_regs, &dss_debug_fops);
++#endif
++#ifdef CONFIG_OMAP2_DSS_DSI
++ debugfs_create_file("dsi", S_IRUGO, dss_debugfs_dir,
++ &dsi_dump_regs, &dss_debug_fops);
++#endif
++ return 0;
++}
++
++static void dss_uninitialize_debugfs(void)
++{
++ if (dss_debugfs_dir)
++ debugfs_remove_recursive(dss_debugfs_dir);
++}
++#endif /* CONFIG_DEBUG_FS && CONFIG_OMAP2_DSS_DEBUG_SUPPORT */
++
++
++/* DSI powers */
++int dss_dsi_power_up(void)
++{
++ struct omap_dss_board_info *pdata = core.pdev->dev.platform_data;
++
++ if (!pdata->dsi_power_up)
++ return 0; /* presume power is always on then */
++
++ return pdata->dsi_power_up();
++}
++
++void dss_dsi_power_down(void)
++{
++ struct omap_dss_board_info *pdata = core.pdev->dev.platform_data;
++
++ if (!pdata->dsi_power_down)
++ return;
++
++ pdata->dsi_power_down();
++}
++
++
++
++/* PLATFORM DEVICE */
++static int omap_dss_probe(struct platform_device *pdev)
++{
++ int skip_init = 0;
++ int r;
++
++ core.pdev = pdev;
++
++ r = dss_get_clocks();
++ if (r)
++ goto fail0;
++
++ dss_clk_enable_all_no_ctx();
++
++ core.ctx_id = dss_get_ctx_id();
++ DSSDBG("initial ctx id %u\n", core.ctx_id);
++
++#ifdef CONFIG_FB_OMAP_BOOTLOADER_INIT
++ /* DISPC_CONTROL */
++ if (omap_readl(0x48050440) & 1) /* LCD enabled? */
++ skip_init = 1;
++#endif
++
++ r = dss_init(skip_init);
++ if (r) {
++ DSSERR("Failed to initialize DSS\n");
++ goto fail0;
++ }
++
++#ifdef CONFIG_OMAP2_DSS_RFBI
++ r = rfbi_init();
++ if (r) {
++ DSSERR("Failed to initialize rfbi\n");
++ goto fail0;
++ }
++#endif
++
++ r = dpi_init();
++ if (r) {
++ DSSERR("Failed to initialize dpi\n");
++ goto fail0;
++ }
++
++ r = dispc_init();
++ if (r) {
++ DSSERR("Failed to initialize dispc\n");
++ goto fail0;
++ }
++#ifdef CONFIG_OMAP2_DSS_VENC
++ r = venc_init();
++ if (r) {
++ DSSERR("Failed to initialize venc\n");
++ goto fail0;
++ }
++#endif
++ if (cpu_is_omap34xx()) {
++#ifdef CONFIG_OMAP2_DSS_SDI
++ r = sdi_init(skip_init);
++ if (r) {
++ DSSERR("Failed to initialize SDI\n");
++ goto fail0;
++ }
++#endif
++#ifdef CONFIG_OMAP2_DSS_DSI
++ r = dsi_init();
++ if (r) {
++ DSSERR("Failed to initialize DSI\n");
++ goto fail0;
++ }
++#endif
++ }
++
++#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT)
++ r = dss_initialize_debugfs();
++ if (r)
++ goto fail0;
++#endif
++
++ dss_init_displays(pdev);
++ dss_init_overlay_managers(pdev);
++ dss_init_overlays(pdev, def_disp_name);
++
++ dss_clk_disable_all();
++
++ return 0;
++
++ /* XXX fail correctly */
++fail0:
++ return r;
++}
++
++static int omap_dss_remove(struct platform_device *pdev)
++{
++ int c;
++
++ dss_uninit_overlays(pdev);
++ dss_uninit_overlay_managers(pdev);
++ dss_uninit_displays(pdev);
++
++#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_OMAP2_DSS_DEBUG_SUPPORT)
++ dss_uninitialize_debugfs();
++#endif
++
++#ifdef CONFIG_OMAP2_DSS_VENC
++ venc_exit();
++#endif
++ dispc_exit();
++ dpi_exit();
++#ifdef CONFIG_OMAP2_DSS_RFBI
++ rfbi_exit();
++#endif
++ if (cpu_is_omap34xx()) {
++#ifdef CONFIG_OMAP2_DSS_DSI
++ dsi_exit();
++#endif
++#ifdef CONFIG_OMAP2_DSS_SDI
++ sdi_exit();
++#endif
++ }
++
++ dss_exit();
++
++ /* these should be removed at some point */
++ c = core.dss_ick->usecount;
++ if (c > 0) {
++ DSSERR("warning: dss_ick usecount %d, disabling\n", c);
++ while (c-- > 0)
++ clk_disable(core.dss_ick);
++ }
++
++ c = core.dss1_fck->usecount;
++ if (c > 0) {
++ DSSERR("warning: dss1_fck usecount %d, disabling\n", c);
++ while (c-- > 0)
++ clk_disable(core.dss1_fck);
++ }
++
++ c = core.dss2_fck->usecount;
++ if (c > 0) {
++ DSSERR("warning: dss2_fck usecount %d, disabling\n", c);
++ while (c-- > 0)
++ clk_disable(core.dss2_fck);
++ }
++
++ c = core.dss_54m_fck->usecount;
++ if (c > 0) {
++ DSSERR("warning: dss_54m_fck usecount %d, disabling\n", c);
++ while (c-- > 0)
++ clk_disable(core.dss_54m_fck);
++ }
++
++ if (core.dss_96m_fck) {
++ c = core.dss_96m_fck->usecount;
++ if (c > 0) {
++ DSSERR("warning: dss_96m_fck usecount %d, disabling\n",
++ c);
++ while (c-- > 0)
++ clk_disable(core.dss_96m_fck);
++ }
++ }
++
++ dss_put_clocks();
++
++ return 0;
++}
++
++static void omap_dss_shutdown(struct platform_device *pdev)
++{
++ DSSDBG("shutdown\n");
++}
++
++static int omap_dss_suspend(struct platform_device *pdev, pm_message_t state)
++{
++ DSSDBG("suspend %d\n", state.event);
++
++ return dss_suspend_all_displays();
++}
++
++static int omap_dss_resume(struct platform_device *pdev)
++{
++ DSSDBG("resume\n");
++
++ return dss_resume_all_displays();
++}
++
++static struct platform_driver omap_dss_driver = {
++ .probe = omap_dss_probe,
++ .remove = omap_dss_remove,
++ .shutdown = omap_dss_shutdown,
++ .suspend = omap_dss_suspend,
++ .resume = omap_dss_resume,
++ .driver = {
++ .name = "omapdss",
++ .owner = THIS_MODULE,
++ },
++};
++
++static int __init omap_dss_init(void)
++{
++ return platform_driver_register(&omap_dss_driver);
++}
++
++static void __exit omap_dss_exit(void)
++{
++ platform_driver_unregister(&omap_dss_driver);
++}
++
++subsys_initcall(omap_dss_init);
++module_exit(omap_dss_exit);
++
++
++MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>");
++MODULE_DESCRIPTION("OMAP2/3 Display Subsystem");
++MODULE_LICENSE("GPL v2");
++
+diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
+new file mode 100644
+index 0000000..ffb5648
+--- /dev/null
++++ b/drivers/video/omap2/dss/dispc.c
+@@ -0,0 +1,2968 @@
++/*
++ * linux/drivers/video/omap2/dss/dispc.c
++ *
++ * Copyright (C) 2009 Nokia Corporation
++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
++ *
++ * Some code and ideas taken from drivers/video/omap/ driver
++ * by Imre Deak.
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published by
++ * the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
++ * more details.
++ *
++ * You should have received a copy of the GNU General Public License along with
++ * this program. If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#define DSS_SUBSYS_NAME "DISPC"
++
++#include <linux/kernel.h>
++#include <linux/dma-mapping.h>
++#include <linux/vmalloc.h>
++#include <linux/clk.h>
++#include <linux/io.h>
++#include <linux/jiffies.h>
++#include <linux/seq_file.h>
++#include <linux/delay.h>
++#include <linux/workqueue.h>
++
++#include <mach/sram.h>
++#include <mach/board.h>
++#include <mach/clock.h>
++
++#include <mach/display.h>
++
++#include "dss.h"
++
++/* DISPC */
++#define DISPC_BASE 0x48050400
++
++#define DISPC_SZ_REGS SZ_1K
++
++struct dispc_reg { u16 idx; };
++
++#define DISPC_REG(idx) ((const struct dispc_reg) { idx })
++
++/* DISPC common */
++#define DISPC_REVISION DISPC_REG(0x0000)
++#define DISPC_SYSCONFIG DISPC_REG(0x0010)
++#define DISPC_SYSSTATUS DISPC_REG(0x0014)
++#define DISPC_IRQSTATUS DISPC_REG(0x0018)
++#define DISPC_IRQENABLE DISPC_REG(0x001C)
++#define DISPC_CONTROL DISPC_REG(0x0040)
++#define DISPC_CONFIG DISPC_REG(0x0044)
++#define DISPC_CAPABLE DISPC_REG(0x0048)
++#define DISPC_DEFAULT_COLOR0 DISPC_REG(0x004C)
++#define DISPC_DEFAULT_COLOR1 DISPC_REG(0x0050)
++#define DISPC_TRANS_COLOR0 DISPC_REG(0x0054)
++#define DISPC_TRANS_COLOR1 DISPC_REG(0x0058)
++#define DISPC_LINE_STATUS DISPC_REG(0x005C)
++#define DISPC_LINE_NUMBER DISPC_REG(0x0060)
++#define DISPC_TIMING_H DISPC_REG(0x0064)
++#define DISPC_TIMING_V DISPC_REG(0x0068)
++#define DISPC_POL_FREQ DISPC_REG(0x006C)
++#define DISPC_DIVISOR DISPC_REG(0x0070)
++#define DISPC_GLOBAL_ALPHA DISPC_REG(0x0074)
++#define DISPC_SIZE_DIG DISPC_REG(0x0078)
++#define DISPC_SIZE_LCD DISPC_REG(0x007C)
++
++/* DISPC GFX plane */
++#define DISPC_GFX_BA0 DISPC_REG(0x0080)
++#define DISPC_GFX_BA1 DISPC_REG(0x0084)
++#define DISPC_GFX_POSITION DISPC_REG(0x0088)
++#define DISPC_GFX_SIZE DISPC_REG(0x008C)
++#define DISPC_GFX_ATTRIBUTES DISPC_REG(0x00A0)
++#define DISPC_GFX_FIFO_THRESHOLD DISPC_REG(0x00A4)
++#define DISPC_GFX_FIFO_SIZE_STATUS DISPC_REG(0x00A8)
++#define DISPC_GFX_ROW_INC DISPC_REG(0x00AC)
++#define DISPC_GFX_PIXEL_INC DISPC_REG(0x00B0)
++#define DISPC_GFX_WINDOW_SKIP DISPC_REG(0x00B4)
++#define DISPC_GFX_TABLE_BA DISPC_REG(0x00B8)
++
++#define DISPC_DATA_CYCLE1 DISPC_REG(0x01D4)
++#define DISPC_DATA_CYCLE2 DISPC_REG(0x01D8)
++#define DISPC_DATA_CYCLE3 DISPC_REG(0x01DC)
++
++#define DISPC_CPR_COEF_R DISPC_REG(0x0220)
++#define DISPC_CPR_COEF_G DISPC_REG(0x0224)
++#define DISPC_CPR_COEF_B DISPC_REG(0x0228)
++
++#define DISPC_GFX_PRELOAD DISPC_REG(0x022C)
++
++/* DISPC Video plane, n = 0 for VID1 and n = 1 for VID2 */
++#define DISPC_VID_REG(n, idx) DISPC_REG(0x00BC + (n)*0x90 + idx)
++
++#define DISPC_VID_BA0(n) DISPC_VID_REG(n, 0x0000)
++#define DISPC_VID_BA1(n) DISPC_VID_REG(n, 0x0004)
++#define DISPC_VID_POSITION(n) DISPC_VID_REG(n, 0x0008)
++#define DISPC_VID_SIZE(n) DISPC_VID_REG(n, 0x000C)
++#define DISPC_VID_ATTRIBUTES(n) DISPC_VID_REG(n, 0x0010)
++#define DISPC_VID_FIFO_THRESHOLD(n) DISPC_VID_REG(n, 0x0014)
++#define DISPC_VID_FIFO_SIZE_STATUS(n) DISPC_VID_REG(n, 0x0018)
++#define DISPC_VID_ROW_INC(n) DISPC_VID_REG(n, 0x001C)
++#define DISPC_VID_PIXEL_INC(n) DISPC_VID_REG(n, 0x0020)
++#define DISPC_VID_FIR(n) DISPC_VID_REG(n, 0x0024)
++#define DISPC_VID_PICTURE_SIZE(n) DISPC_VID_REG(n, 0x0028)
++#define DISPC_VID_ACCU0(n) DISPC_VID_REG(n, 0x002C)
++#define DISPC_VID_ACCU1(n) DISPC_VID_REG(n, 0x0030)
++
++/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */
++#define DISPC_VID_FIR_COEF_H(n, i) DISPC_REG(0x00F0 + (n)*0x90 + (i)*0x8)
++/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */
++#define DISPC_VID_FIR_COEF_HV(n, i) DISPC_REG(0x00F4 + (n)*0x90 + (i)*0x8)
++/* coef index i = {0, 1, 2, 3, 4} */
++#define DISPC_VID_CONV_COEF(n, i) DISPC_REG(0x0130 + (n)*0x90 + (i)*0x4)
++/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */
++#define DISPC_VID_FIR_COEF_V(n, i) DISPC_REG(0x01E0 + (n)*0x20 + (i)*0x4)
++
++#define DISPC_VID_PRELOAD(n) DISPC_REG(0x230 + (n)*0x04)
++
++
++#define DISPC_IRQ_MASK_ERROR (DISPC_IRQ_GFX_FIFO_UNDERFLOW | \
++ DISPC_IRQ_OCP_ERR | \
++ DISPC_IRQ_VID1_FIFO_UNDERFLOW | \
++ DISPC_IRQ_VID2_FIFO_UNDERFLOW | \
++ DISPC_IRQ_SYNC_LOST | \
++ DISPC_IRQ_SYNC_LOST_DIGIT)
++
++#define DISPC_MAX_NR_ISRS 8
++
++struct omap_dispc_isr_data {
++ omap_dispc_isr_t isr;
++ void *arg;
++ u32 mask;
++};
++
++#define REG_GET(idx, start, end) \
++ FLD_GET(dispc_read_reg(idx), start, end)
++
++#define REG_FLD_MOD(idx, val, start, end) \
++ dispc_write_reg(idx, FLD_MOD(dispc_read_reg(idx), val, start, end))
++
++static const struct dispc_reg dispc_reg_att[] = { DISPC_GFX_ATTRIBUTES,
++ DISPC_VID_ATTRIBUTES(0),
++ DISPC_VID_ATTRIBUTES(1) };
++
++static struct {
++ void __iomem *base;
++
++ struct clk *dpll4_m4_ck;
++
++ spinlock_t irq_lock;
++
++ unsigned long cache_req_pck;
++ unsigned long cache_prate;
++ struct dispc_clock_info cache_cinfo;
++
++ u32 irq_error_mask;
++ struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS];
++
++ spinlock_t error_lock;
++ u32 error_irqs;
++ struct work_struct error_work;
++
++ u32 ctx[DISPC_SZ_REGS / sizeof(u32)];
++} dispc;
++
++static void omap_dispc_set_irqs(void);
++
++static inline void dispc_write_reg(const struct dispc_reg idx, u32 val)
++{
++ __raw_writel(val, dispc.base + idx.idx);
++}
++
++static inline u32 dispc_read_reg(const struct dispc_reg idx)
++{
++ return __raw_readl(dispc.base + idx.idx);
++}
++
++#define SR(reg) \
++ dispc.ctx[(DISPC_##reg).idx / sizeof(u32)] = dispc_read_reg(DISPC_##reg)
++#define RR(reg) \
++ dispc_write_reg(DISPC_##reg, dispc.ctx[(DISPC_##reg).idx / sizeof(u32)])
++
++void dispc_save_context(void)
++{
++ if (cpu_is_omap24xx())
++ return;
++
++ SR(SYSCONFIG);
++ SR(IRQENABLE);
++ SR(CONTROL);
++ SR(CONFIG);
++ SR(DEFAULT_COLOR0);
++ SR(DEFAULT_COLOR1);
++ SR(TRANS_COLOR0);
++ SR(TRANS_COLOR1);
++ SR(LINE_NUMBER);
++ SR(TIMING_H);
++ SR(TIMING_V);
++ SR(POL_FREQ);
++ SR(DIVISOR);
++ SR(GLOBAL_ALPHA);
++ SR(SIZE_DIG);
++ SR(SIZE_LCD);
++
++ SR(GFX_BA0);
++ SR(GFX_BA1);
++ SR(GFX_POSITION);
++ SR(GFX_SIZE);
++ SR(GFX_ATTRIBUTES);
++ SR(GFX_FIFO_THRESHOLD);
++ SR(GFX_ROW_INC);
++ SR(GFX_PIXEL_INC);
++ SR(GFX_WINDOW_SKIP);
++ SR(GFX_TABLE_BA);
++
++ SR(DATA_CYCLE1);
++ SR(DATA_CYCLE2);
++ SR(DATA_CYCLE3);
++
++ SR(CPR_COEF_R);
++ SR(CPR_COEF_G);
++ SR(CPR_COEF_B);
++
++ SR(GFX_PRELOAD);
++
++ /* VID1 */
++ SR(VID_BA0(0));
++ SR(VID_BA1(0));
++ SR(VID_POSITION(0));
++ SR(VID_SIZE(0));
++ SR(VID_ATTRIBUTES(0));
++ SR(VID_FIFO_THRESHOLD(0));
++ SR(VID_ROW_INC(0));
++ SR(VID_PIXEL_INC(0));
++ SR(VID_FIR(0));
++ SR(VID_PICTURE_SIZE(0));
++ SR(VID_ACCU0(0));
++ SR(VID_ACCU1(0));
++
++ SR(VID_FIR_COEF_H(0, 0));
++ SR(VID_FIR_COEF_H(0, 1));
++ SR(VID_FIR_COEF_H(0, 2));
++ SR(VID_FIR_COEF_H(0, 3));
++ SR(VID_FIR_COEF_H(0, 4));
++ SR(VID_FIR_COEF_H(0, 5));
++ SR(VID_FIR_COEF_H(0, 6));
++ SR(VID_FIR_COEF_H(0, 7));
++
++ SR(VID_FIR_COEF_HV(0, 0));
++ SR(VID_FIR_COEF_HV(0, 1));
++ SR(VID_FIR_COEF_HV(0, 2));
++ SR(VID_FIR_COEF_HV(0, 3));
++ SR(VID_FIR_COEF_HV(0, 4));
++ SR(VID_FIR_COEF_HV(0, 5));
++ SR(VID_FIR_COEF_HV(0, 6));
++ SR(VID_FIR_COEF_HV(0, 7));
++
++ SR(VID_CONV_COEF(0, 0));
++ SR(VID_CONV_COEF(0, 1));
++ SR(VID_CONV_COEF(0, 2));
++ SR(VID_CONV_COEF(0, 3));
++ SR(VID_CONV_COEF(0, 4));
++
++ SR(VID_FIR_COEF_V(0, 0));
++ SR(VID_FIR_COEF_V(0, 1));
++ SR(VID_FIR_COEF_V(0, 2));
++ SR(VID_FIR_COEF_V(0, 3));
++ SR(VID_FIR_COEF_V(0, 4));
++ SR(VID_FIR_COEF_V(0, 5));
++ SR(VID_FIR_COEF_V(0, 6));
++ SR(VID_FIR_COEF_V(0, 7));
++
++ SR(VID_PRELOAD(0));
++
++ /* VID2 */
++ SR(VID_BA0(1));
++ SR(VID_BA1(1));
++ SR(VID_POSITION(1));
++ SR(VID_SIZE(1));
++ SR(VID_ATTRIBUTES(1));
++ SR(VID_FIFO_THRESHOLD(1));
++ SR(VID_ROW_INC(1));
++ SR(VID_PIXEL_INC(1));
++ SR(VID_FIR(1));
++ SR(VID_PICTURE_SIZE(1));
++ SR(VID_ACCU0(1));
++ SR(VID_ACCU1(1));
++
++ SR(VID_FIR_COEF_H(1, 0));
++ SR(VID_FIR_COEF_H(1, 1));
++ SR(VID_FIR_COEF_H(1, 2));
++ SR(VID_FIR_COEF_H(1, 3));
++ SR(VID_FIR_COEF_H(1, 4));
++ SR(VID_FIR_COEF_H(1, 5));
++ SR(VID_FIR_COEF_H(1, 6));
++ SR(VID_FIR_COEF_H(1, 7));
++
++ SR(VID_FIR_COEF_HV(1, 0));
++ SR(VID_FIR_COEF_HV(1, 1));
++ SR(VID_FIR_COEF_HV(1, 2));
++ SR(VID_FIR_COEF_HV(1, 3));
++ SR(VID_FIR_COEF_HV(1, 4));
++ SR(VID_FIR_COEF_HV(1, 5));
++ SR(VID_FIR_COEF_HV(1, 6));
++ SR(VID_FIR_COEF_HV(1, 7));
++
++ SR(VID_CONV_COEF(1, 0));
++ SR(VID_CONV_COEF(1, 1));
++ SR(VID_CONV_COEF(1, 2));
++ SR(VID_CONV_COEF(1, 3));
++ SR(VID_CONV_COEF(1, 4));
++
++ SR(VID_FIR_COEF_V(1, 0));
++ SR(VID_FIR_COEF_V(1, 1));
++ SR(VID_FIR_COEF_V(1, 2));
++ SR(VID_FIR_COEF_V(1, 3));
++ SR(VID_FIR_COEF_V(1, 4));
++ SR(VID_FIR_COEF_V(1, 5));
++ SR(VID_FIR_COEF_V(1, 6));
++ SR(VID_FIR_COEF_V(1, 7));
++
++ SR(VID_PRELOAD(1));
++}
++
++void dispc_restore_context(void)
++{
++ RR(SYSCONFIG);
++ RR(IRQENABLE);
++ /*RR(CONTROL);*/
++ RR(CONFIG);
++ RR(DEFAULT_COLOR0);
++ RR(DEFAULT_COLOR1);
++ RR(TRANS_COLOR0);
++ RR(TRANS_COLOR1);
++ RR(LINE_NUMBER);
++ RR(TIMING_H);
++ RR(TIMING_V);
++ RR(POL_FREQ);
++ RR(DIVISOR);
++ RR(GLOBAL_ALPHA);
++ RR(SIZE_DIG);
++ RR(SIZE_LCD);
++
++ RR(GFX_BA0);
++ RR(GFX_BA1);
++ RR(GFX_POSITION);
++ RR(GFX_SIZE);
++ RR(GFX_ATTRIBUTES);
++ RR(GFX_FIFO_THRESHOLD);
++ RR(GFX_ROW_INC);
++ RR(GFX_PIXEL_INC);
++ RR(GFX_WINDOW_SKIP);
++ RR(GFX_TABLE_BA);
++
++ RR(DATA_CYCLE1);
++ RR(DATA_CYCLE2);
++ RR(DATA_CYCLE3);
++
++ RR(CPR_COEF_R);
++ RR(CPR_COEF_G);
++ RR(CPR_COEF_B);
++
++ RR(GFX_PRELOAD);
++
++ /* VID1 */
++ RR(VID_BA0(0));
++ RR(VID_BA1(0));
++ RR(VID_POSITION(0));
++ RR(VID_SIZE(0));
++ RR(VID_ATTRIBUTES(0));
++ RR(VID_FIFO_THRESHOLD(0));
++ RR(VID_ROW_INC(0));
++ RR(VID_PIXEL_INC(0));
++ RR(VID_FIR(0));
++ RR(VID_PICTURE_SIZE(0));
++ RR(VID_ACCU0(0));
++ RR(VID_ACCU1(0));
++
++ RR(VID_FIR_COEF_H(0, 0));
++ RR(VID_FIR_COEF_H(0, 1));
++ RR(VID_FIR_COEF_H(0, 2));
++ RR(VID_FIR_COEF_H(0, 3));
++ RR(VID_FIR_COEF_H(0, 4));
++ RR(VID_FIR_COEF_H(0, 5));
++ RR(VID_FIR_COEF_H(0, 6));
++ RR(VID_FIR_COEF_H(0, 7));
++
++ RR(VID_FIR_COEF_HV(0, 0));
++ RR(VID_FIR_COEF_HV(0, 1));
++ RR(VID_FIR_COEF_HV(0, 2));
++ RR(VID_FIR_COEF_HV(0, 3));
++ RR(VID_FIR_COEF_HV(0, 4));
++ RR(VID_FIR_COEF_HV(0, 5));
++ RR(VID_FIR_COEF_HV(0, 6));
++ RR(VID_FIR_COEF_HV(0, 7));
++
++ RR(VID_CONV_COEF(0, 0));
++ RR(VID_CONV_COEF(0, 1));
++ RR(VID_CONV_COEF(0, 2));
++ RR(VID_CONV_COEF(0, 3));
++ RR(VID_CONV_COEF(0, 4));
++
++ RR(VID_FIR_COEF_V(0, 0));
++ RR(VID_FIR_COEF_V(0, 1));
++ RR(VID_FIR_COEF_V(0, 2));
++ RR(VID_FIR_COEF_V(0, 3));
++ RR(VID_FIR_COEF_V(0, 4));
++ RR(VID_FIR_COEF_V(0, 5));
++ RR(VID_FIR_COEF_V(0, 6));
++ RR(VID_FIR_COEF_V(0, 7));
++
++ RR(VID_PRELOAD(0));
++
++ /* VID2 */
++ RR(VID_BA0(1));
++ RR(VID_BA1(1));
++ RR(VID_POSITION(1));
++ RR(VID_SIZE(1));
++ RR(VID_ATTRIBUTES(1));
++ RR(VID_FIFO_THRESHOLD(1));
++ RR(VID_ROW_INC(1));
++ RR(VID_PIXEL_INC(1));
++ RR(VID_FIR(1));
++ RR(VID_PICTURE_SIZE(1));
++ RR(VID_ACCU0(1));
++ RR(VID_ACCU1(1));
++
++ RR(VID_FIR_COEF_H(1, 0));
++ RR(VID_FIR_COEF_H(1, 1));
++ RR(VID_FIR_COEF_H(1, 2));
++ RR(VID_FIR_COEF_H(1, 3));
++ RR(VID_FIR_COEF_H(1, 4));
++ RR(VID_FIR_COEF_H(1, 5));
++ RR(VID_FIR_COEF_H(1, 6));
++ RR(VID_FIR_COEF_H(1, 7));
++
++ RR(VID_FIR_COEF_HV(1, 0));
++ RR(VID_FIR_COEF_HV(1, 1));
++ RR(VID_FIR_COEF_HV(1, 2));
++ RR(VID_FIR_COEF_HV(1, 3));
++ RR(VID_FIR_COEF_HV(1, 4));
++ RR(VID_FIR_COEF_HV(1, 5));
++ RR(VID_FIR_COEF_HV(1, 6));
++ RR(VID_FIR_COEF_HV(1, 7));
++
++ RR(VID_CONV_COEF(1, 0));
++ RR(VID_CONV_COEF(1, 1));
++ RR(VID_CONV_COEF(1, 2));
++ RR(VID_CONV_COEF(1, 3));
++ RR(VID_CONV_COEF(1, 4));
++
++ RR(VID_FIR_COEF_V(1, 0));
++ RR(VID_FIR_COEF_V(1, 1));
++ RR(VID_FIR_COEF_V(1, 2));
++ RR(VID_FIR_COEF_V(1, 3));
++ RR(VID_FIR_COEF_V(1, 4));
++ RR(VID_FIR_COEF_V(1, 5));
++ RR(VID_FIR_COEF_V(1, 6));
++ RR(VID_FIR_COEF_V(1, 7));
++
++ RR(VID_PRELOAD(1));
++
++ /* enable last, because LCD & DIGIT enable are here */
++ RR(CONTROL);
++}
++
++#undef SR
++#undef RR
++
++static inline void enable_clocks(bool enable)
++{
++ if (enable)
++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
++ else
++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
++}
++
++void dispc_go(enum omap_channel channel)
++{
++ int bit;
++ unsigned long tmo;
++
++ enable_clocks(1);
++
++ if (channel == OMAP_DSS_CHANNEL_LCD)
++ bit = 0; /* LCDENABLE */
++ else
++ bit = 1; /* DIGITALENABLE */
++
++ /* if the channel is not enabled, we don't need GO */
++ if (REG_GET(DISPC_CONTROL, bit, bit) == 0)
++ goto end;
++
++ if (channel == OMAP_DSS_CHANNEL_LCD)
++ bit = 5; /* GOLCD */
++ else
++ bit = 6; /* GODIGIT */
++
++ tmo = jiffies + msecs_to_jiffies(200);
++ while (REG_GET(DISPC_CONTROL, bit, bit) == 1) {
++ if (time_after(jiffies, tmo)) {
++ DSSERR("timeout waiting GO flag\n");
++ goto end;
++ }
++ cpu_relax();
++ }
++
++ DSSDBG("GO %s\n", channel == OMAP_DSS_CHANNEL_LCD ? "LCD" : "DIGIT");
++
++ REG_FLD_MOD(DISPC_CONTROL, 1, bit, bit);
++end:
++ enable_clocks(0);
++}
++
++static void _dispc_write_firh_reg(enum omap_plane plane, int reg, u32 value)
++{
++ BUG_ON(plane == OMAP_DSS_GFX);
++
++ dispc_write_reg(DISPC_VID_FIR_COEF_H(plane-1, reg), value);
++}
++
++static void _dispc_write_firhv_reg(enum omap_plane plane, int reg, u32 value)
++{
++ BUG_ON(plane == OMAP_DSS_GFX);
++
++ dispc_write_reg(DISPC_VID_FIR_COEF_HV(plane-1, reg), value);
++}
++
++static void _dispc_write_firv_reg(enum omap_plane plane, int reg, u32 value)
++{
++ BUG_ON(plane == OMAP_DSS_GFX);
++
++ dispc_write_reg(DISPC_VID_FIR_COEF_V(plane-1, reg), value);
++}
++
++static void _dispc_set_scale_coef(enum omap_plane plane, int hscaleup,
++ int vscaleup, int five_taps)
++{
++ /* Coefficients for horizontal up-sampling */
++ static const u32 coef_hup[8] = {
++ 0x00800000,
++ 0x0D7CF800,
++ 0x1E70F5FF,
++ 0x335FF5FE,
++ 0xF74949F7,
++ 0xF55F33FB,
++ 0xF5701EFE,
++ 0xF87C0DFF,
++ };
++
++ /* Coefficients for horizontal down-sampling */
++ static const u32 coef_hdown[8] = {
++ 0x24382400,
++ 0x28371FFE,
++ 0x2C361BFB,
++ 0x303516F9,
++ 0x11343311,
++ 0x1635300C,
++ 0x1B362C08,
++ 0x1F372804,
++ };
++
++ /* Coefficients for horizontal and vertical up-sampling */
++ static const u32 coef_hvup[2][8] = {
++ {
++ 0x00800000,
++ 0x037B02FF,
++ 0x0C6F05FE,
++ 0x205907FB,
++ 0x00404000,
++ 0x075920FE,
++ 0x056F0CFF,
++ 0x027B0300,
++ },
++ {
++ 0x00800000,
++ 0x0D7CF8FF,
++ 0x1E70F5FE,
++ 0x335FF5FB,
++ 0xF7404000,
++ 0xF55F33FE,
++ 0xF5701EFF,
++ 0xF87C0D00,
++ },
++ };
++
++ /* Coefficients for horizontal and vertical down-sampling */
++ static const u32 coef_hvdown[2][8] = {
++ {
++ 0x24382400,
++ 0x28391F04,
++ 0x2D381B08,
++ 0x3237170C,
++ 0x123737F7,
++ 0x173732F9,
++ 0x1B382DFB,
++ 0x1F3928FE,
++ },
++ {
++ 0x24382400,
++ 0x28371F04,
++ 0x2C361B08,
++ 0x3035160C,
++ 0x113433F7,
++ 0x163530F9,
++ 0x1B362CFB,
++ 0x1F3728FE,
++ },
++ };
++
++ /* Coefficients for vertical up-sampling */
++ static const u32 coef_vup[8] = {
++ 0x00000000,
++ 0x0000FF00,
++ 0x0000FEFF,
++ 0x0000FBFE,
++ 0x000000F7,
++ 0x0000FEFB,
++ 0x0000FFFE,
++ 0x000000FF,
++ };
++
++
++ /* Coefficients for vertical down-sampling */
++ static const u32 coef_vdown[8] = {
++ 0x00000000,
++ 0x000004FE,
++ 0x000008FB,
++ 0x00000CF9,
++ 0x0000F711,
++ 0x0000F90C,
++ 0x0000FB08,
++ 0x0000FE04,
++ };
++
++ const u32 *h_coef;
++ const u32 *hv_coef;
++ const u32 *hv_coef_mod;
++ const u32 *v_coef;
++ int i;
++
++ if (hscaleup)
++ h_coef = coef_hup;
++ else
++ h_coef = coef_hdown;
++
++ if (vscaleup) {
++ hv_coef = coef_hvup[five_taps];
++ v_coef = coef_vup;
++
++ if (hscaleup)
++ hv_coef_mod = NULL;
++ else
++ hv_coef_mod = coef_hvdown[five_taps];
++ } else {
++ hv_coef = coef_hvdown[five_taps];
++ v_coef = coef_vdown;
++
++ if (hscaleup)
++ hv_coef_mod = coef_hvup[five_taps];
++ else
++ hv_coef_mod = NULL;
++ }
++
++ for (i = 0; i < 8; i++) {
++ u32 h, hv;
++
++ h = h_coef[i];
++
++ hv = hv_coef[i];
++
++ if (hv_coef_mod) {
++ hv &= 0xffffff00;
++ hv |= (hv_coef_mod[i] & 0xff);
++ }
++
++ _dispc_write_firh_reg(plane, i, h);
++ _dispc_write_firhv_reg(plane, i, hv);
++ }
++
++ if (!five_taps)
++ return;
++
++ for (i = 0; i < 8; i++) {
++ u32 v;
++ v = v_coef[i];
++ _dispc_write_firv_reg(plane, i, v);
++ }
++}
++
++static void _dispc_setup_color_conv_coef(void)
++{
++ const struct color_conv_coef {
++ int ry, rcr, rcb, gy, gcr, gcb, by, bcr, bcb;
++ int full_range;
++ } ctbl_bt601_5 = {
++ 298, 409, 0, 298, -208, -100, 298, 0, 517, 0,
++ };
++
++ const struct color_conv_coef *ct;
++
++#define CVAL(x, y) (FLD_VAL(x, 26, 16) | FLD_VAL(y, 10, 0))
++
++ ct = &ctbl_bt601_5;
++
++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 0), CVAL(ct->rcr, ct->ry));
++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 1), CVAL(ct->gy, ct->rcb));
++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 2), CVAL(ct->gcb, ct->gcr));
++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 3), CVAL(ct->bcr, ct->by));
++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 4), CVAL(0, ct->bcb));
++
++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 0), CVAL(ct->rcr, ct->ry));
++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 1), CVAL(ct->gy, ct->rcb));
++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 2), CVAL(ct->gcb, ct->gcr));
++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 3), CVAL(ct->bcr, ct->by));
++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 4), CVAL(0, ct->bcb));
++
++#undef CVAL
++
++ REG_FLD_MOD(DISPC_VID_ATTRIBUTES(0), ct->full_range, 11, 11);
++ REG_FLD_MOD(DISPC_VID_ATTRIBUTES(1), ct->full_range, 11, 11);
++}
++
++
++static void _dispc_set_plane_ba0(enum omap_plane plane, u32 paddr)
++{
++ const struct dispc_reg ba0_reg[] = { DISPC_GFX_BA0,
++ DISPC_VID_BA0(0),
++ DISPC_VID_BA0(1) };
++
++ dispc_write_reg(ba0_reg[plane], paddr);
++}
++
++static void _dispc_set_plane_ba1(enum omap_plane plane, u32 paddr)
++{
++ const struct dispc_reg ba1_reg[] = { DISPC_GFX_BA1,
++ DISPC_VID_BA1(0),
++ DISPC_VID_BA1(1) };
++
++ dispc_write_reg(ba1_reg[plane], paddr);
++}
++
++static void _dispc_set_plane_pos(enum omap_plane plane, int x, int y)
++{
++ const struct dispc_reg pos_reg[] = { DISPC_GFX_POSITION,
++ DISPC_VID_POSITION(0),
++ DISPC_VID_POSITION(1) };
++
++ u32 val = FLD_VAL(y, 26, 16) | FLD_VAL(x, 10, 0);
++ dispc_write_reg(pos_reg[plane], val);
++}
++
++static void _dispc_set_pic_size(enum omap_plane plane, int width, int height)
++{
++ const struct dispc_reg siz_reg[] = { DISPC_GFX_SIZE,
++ DISPC_VID_PICTURE_SIZE(0),
++ DISPC_VID_PICTURE_SIZE(1) };
++ u32 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
++ dispc_write_reg(siz_reg[plane], val);
++}
++
++static void _dispc_set_vid_size(enum omap_plane plane, int width, int height)
++{
++ u32 val;
++ const struct dispc_reg vsi_reg[] = { DISPC_VID_SIZE(0),
++ DISPC_VID_SIZE(1) };
++
++ BUG_ON(plane == OMAP_DSS_GFX);
++
++ val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
++ dispc_write_reg(vsi_reg[plane-1], val);
++}
++
++static void _dispc_set_pix_inc(enum omap_plane plane, u16 inc)
++{
++ const struct dispc_reg ri_reg[] = { DISPC_GFX_PIXEL_INC,
++ DISPC_VID_PIXEL_INC(0),
++ DISPC_VID_PIXEL_INC(1) };
++
++ dispc_write_reg(ri_reg[plane], inc);
++}
++
++static void _dispc_set_row_inc(enum omap_plane plane, u16 inc)
++{
++ const struct dispc_reg ri_reg[] = { DISPC_GFX_ROW_INC,
++ DISPC_VID_ROW_INC(0),
++ DISPC_VID_ROW_INC(1) };
++
++ dispc_write_reg(ri_reg[plane], inc);
++}
++
++static void _dispc_set_color_mode(enum omap_plane plane,
++ enum omap_color_mode color_mode)
++{
++ u32 m = 0;
++
++ switch (color_mode) {
++ case OMAP_DSS_COLOR_CLUT1:
++ m = 0x0; break;
++ case OMAP_DSS_COLOR_CLUT2:
++ m = 0x1; break;
++ case OMAP_DSS_COLOR_CLUT4:
++ m = 0x2; break;
++ case OMAP_DSS_COLOR_CLUT8:
++ m = 0x3; break;
++ case OMAP_DSS_COLOR_RGB12U:
++ m = 0x4; break;
++ case OMAP_DSS_COLOR_ARGB16:
++ m = 0x5; break;
++ case OMAP_DSS_COLOR_RGB16:
++ m = 0x6; break;
++ case OMAP_DSS_COLOR_RGB24U:
++ m = 0x8; break;
++ case OMAP_DSS_COLOR_RGB24P:
++ m = 0x9; break;
++ case OMAP_DSS_COLOR_YUV2:
++ m = 0xa; break;
++ case OMAP_DSS_COLOR_UYVY:
++ m = 0xb; break;
++ case OMAP_DSS_COLOR_ARGB32:
++ m = 0xc; break;
++ case OMAP_DSS_COLOR_RGBA32:
++ m = 0xd; break;
++ case OMAP_DSS_COLOR_RGBX32:
++ m = 0xe; break;
++ default:
++ BUG(); break;
++ }
++
++ REG_FLD_MOD(dispc_reg_att[plane], m, 4, 1);
++}
++
++static void _dispc_set_channel_out(enum omap_plane plane,
++ enum omap_channel channel)
++{
++ int shift;
++ u32 val;
++
++ switch (plane) {
++ case OMAP_DSS_GFX:
++ shift = 8;
++ break;
++ case OMAP_DSS_VIDEO1:
++ case OMAP_DSS_VIDEO2:
++ shift = 16;
++ break;
++ default:
++ BUG();
++ return;
++ }
++
++ val = dispc_read_reg(dispc_reg_att[plane]);
++ val = FLD_MOD(val, channel, shift, shift);
++ dispc_write_reg(dispc_reg_att[plane], val);
++}
++
++void dispc_set_burst_size(enum omap_plane plane,
++ enum omap_burst_size burst_size)
++{
++ int shift;
++ u32 val;
++
++ enable_clocks(1);
++
++ switch (plane) {
++ case OMAP_DSS_GFX:
++ shift = 6;
++ break;
++ case OMAP_DSS_VIDEO1:
++ case OMAP_DSS_VIDEO2:
++ shift = 14;
++ break;
++ default:
++ BUG();
++ return;
++ }
++
++ val = dispc_read_reg(dispc_reg_att[plane]);
++ val = FLD_MOD(val, burst_size, shift+1, shift);
++ dispc_write_reg(dispc_reg_att[plane], val);
++
++ enable_clocks(0);
++}
++
++static void _dispc_set_vid_color_conv(enum omap_plane plane, bool enable)
++{
++ u32 val;
++
++ BUG_ON(plane == OMAP_DSS_GFX);
++
++ val = dispc_read_reg(dispc_reg_att[plane]);
++ val = FLD_MOD(val, enable, 9, 9);
++ dispc_write_reg(dispc_reg_att[plane], val);
++}
++
++void dispc_set_lcd_size(u16 width, u16 height)
++{
++ u32 val;
++ BUG_ON((width > (1 << 11)) || (height > (1 << 11)));
++ val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
++ enable_clocks(1);
++ dispc_write_reg(DISPC_SIZE_LCD, val);
++ enable_clocks(0);
++}
++
++void dispc_set_digit_size(u16 width, u16 height)
++{
++ u32 val;
++ BUG_ON((width > (1 << 11)) || (height > (1 << 11)));
++ val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
++ enable_clocks(1);
++ dispc_write_reg(DISPC_SIZE_DIG, val);
++ enable_clocks(0);
++}
++
++u32 dispc_get_plane_fifo_size(enum omap_plane plane)
++{
++ const struct dispc_reg fsz_reg[] = { DISPC_GFX_FIFO_SIZE_STATUS,
++ DISPC_VID_FIFO_SIZE_STATUS(0),
++ DISPC_VID_FIFO_SIZE_STATUS(1) };
++ u32 size;
++
++ enable_clocks(1);
++
++ if (cpu_is_omap24xx())
++ size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 8, 0);
++ else if (cpu_is_omap34xx())
++ size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 10, 0);
++ else
++ BUG();
++
++ if (cpu_is_omap34xx()) {
++ /* FIFOMERGE */
++ if (REG_GET(DISPC_CONFIG, 14, 14))
++ size *= 3;
++ }
++
++ enable_clocks(0);
++
++ return size;
++}
++
++void dispc_setup_plane_fifo(enum omap_plane plane, u32 low, u32 high)
++{
++ const struct dispc_reg ftrs_reg[] = { DISPC_GFX_FIFO_THRESHOLD,
++ DISPC_VID_FIFO_THRESHOLD(0),
++ DISPC_VID_FIFO_THRESHOLD(1) };
++ u32 size;
++
++ enable_clocks(1);
++
++ size = dispc_get_plane_fifo_size(plane);
++
++ BUG_ON(low > size || high > size);
++
++ DSSDBG("fifo(%d) size %d, low/high old %u/%u, new %u/%u\n",
++ plane, size,
++ REG_GET(ftrs_reg[plane], 11, 0),
++ REG_GET(ftrs_reg[plane], 27, 16),
++ low, high);
++
++ if (cpu_is_omap24xx())
++ dispc_write_reg(ftrs_reg[plane],
++ FLD_VAL(high, 24, 16) | FLD_VAL(low, 8, 0));
++ else
++ dispc_write_reg(ftrs_reg[plane],
++ FLD_VAL(high, 27, 16) | FLD_VAL(low, 11, 0));
++
++ enable_clocks(0);
++}
++
++void dispc_enable_fifomerge(bool enable)
++{
++ enable_clocks(1);
++
++ DSSDBG("FIFO merge %s\n", enable ? "enabled" : "disabled");
++ REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 14, 14);
++
++ enable_clocks(0);
++}
++
++static void _dispc_set_fir(enum omap_plane plane, int hinc, int vinc)
++{
++ u32 val;
++ const struct dispc_reg fir_reg[] = { DISPC_VID_FIR(0),
++ DISPC_VID_FIR(1) };
++
++ BUG_ON(plane == OMAP_DSS_GFX);
++
++ val = FLD_VAL(vinc, 27, 16) | FLD_VAL(hinc, 11, 0);
++ dispc_write_reg(fir_reg[plane-1], val);
++}
++
++static void _dispc_set_vid_accu0(enum omap_plane plane, int haccu, int vaccu)
++{
++ u32 val;
++ const struct dispc_reg ac0_reg[] = { DISPC_VID_ACCU0(0),
++ DISPC_VID_ACCU0(1) };
++
++ BUG_ON(plane == OMAP_DSS_GFX);
++
++ val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0);
++ dispc_write_reg(ac0_reg[plane-1], val);
++}
++
++static void _dispc_set_vid_accu1(enum omap_plane plane, int haccu, int vaccu)
++{
++ u32 val;
++ const struct dispc_reg ac1_reg[] = { DISPC_VID_ACCU1(0),
++ DISPC_VID_ACCU1(1) };
++
++ BUG_ON(plane == OMAP_DSS_GFX);
++
++ val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0);
++ dispc_write_reg(ac1_reg[plane-1], val);
++}
++
++
++static void _dispc_set_scaling(enum omap_plane plane,
++ u16 orig_width, u16 orig_height,
++ u16 out_width, u16 out_height,
++ bool ilace)
++{
++ int fir_hinc;
++ int fir_vinc;
++ int hscaleup, vscaleup, five_taps;
++ int fieldmode = 0;
++ int accu0 = 0;
++ int accu1 = 0;
++ u32 l;
++
++ BUG_ON(plane == OMAP_DSS_GFX);
++
++ hscaleup = orig_width <= out_width;
++ vscaleup = orig_height <= out_height;
++ five_taps = orig_height > out_height * 2;
++
++ _dispc_set_scale_coef(plane, hscaleup, vscaleup, five_taps);
++
++ if (!orig_width || orig_width == out_width)
++ fir_hinc = 0;
++ else
++ fir_hinc = 1024 * orig_width / out_width;
++
++ if (!orig_height || orig_height == out_height)
++ fir_vinc = 0;
++ else
++ fir_vinc = 1024 * orig_height / out_height;
++
++ _dispc_set_fir(plane, fir_hinc, fir_vinc);
++
++ l = dispc_read_reg(dispc_reg_att[plane]);
++ l &= ~((0x0f << 5) | (0x3 << 21));
++
++ l |= fir_hinc ? (1 << 5) : 0;
++ l |= fir_vinc ? (1 << 6) : 0;
++
++ l |= hscaleup ? 0 : (1 << 7);
++ l |= vscaleup ? 0 : (1 << 8);
++
++ l |= five_taps ? (1 << 21) : 0;
++ l |= five_taps ? (1 << 22) : 0;
++
++ dispc_write_reg(dispc_reg_att[plane], l);
++
++ if (ilace) {
++ if (fieldmode) {
++ accu0 = fir_vinc / 2;
++ accu1 = 0;
++ } else {
++ accu0 = 0;
++ accu1 = fir_vinc / 2;
++ if (accu1 >= 1024/2) {
++ accu0 = 1024/2;
++ accu1 -= accu0;
++ }
++ }
++ }
++
++ _dispc_set_vid_accu0(plane, 0, accu0);
++ _dispc_set_vid_accu1(plane, 0, accu1);
++}
++
++static void _dispc_set_rotation_attrs(enum omap_plane plane, u8 rotation,
++ bool mirroring, enum omap_color_mode color_mode)
++{
++ if (color_mode == OMAP_DSS_COLOR_YUV2 ||
++ color_mode == OMAP_DSS_COLOR_UYVY) {
++ int vidrot = 0;
++
++ if (mirroring) {
++ switch (rotation) {
++ case 0: vidrot = 2; break;
++ case 1: vidrot = 3; break;
++ case 2: vidrot = 0; break;
++ case 3: vidrot = 1; break;
++ }
++ } else {
++ switch (rotation) {
++ case 0: vidrot = 0; break;
++ case 1: vidrot = 1; break;
++ case 2: vidrot = 2; break;
++ case 3: vidrot = 1; break;
++ }
++ }
++
++ REG_FLD_MOD(dispc_reg_att[plane], vidrot, 13, 12);
++
++ if (rotation == 1 || rotation == 3)
++ REG_FLD_MOD(dispc_reg_att[plane], 0x1, 18, 18);
++ else
++ REG_FLD_MOD(dispc_reg_att[plane], 0x0, 18, 18);
++ } else {
++ REG_FLD_MOD(dispc_reg_att[plane], 0, 13, 12);
++ REG_FLD_MOD(dispc_reg_att[plane], 0, 18, 18);
++ }
++}
++
++static int pixinc(int pixels, u8 ps)
++{
++ if (pixels == 1)
++ return 1;
++ else if (pixels > 1)
++ return 1 + (pixels - 1) * ps;
++ else if (pixels < 0)
++ return 1 - (-pixels + 1) * ps;
++ else
++ BUG();
++}
++
++static void calc_rotation_offset(u8 rotation, bool mirror,
++ u16 screen_width,
++ u16 width, u16 height,
++ enum omap_color_mode color_mode, bool fieldmode,
++ unsigned *offset0, unsigned *offset1,
++ u16 *row_inc, u16 *pix_inc)
++{
++ u8 ps;
++ u16 fbw, fbh;
++
++ switch (color_mode) {
++ case OMAP_DSS_COLOR_RGB16:
++ case OMAP_DSS_COLOR_ARGB16:
++ ps = 2;
++ break;
++
++ case OMAP_DSS_COLOR_RGB24P:
++ ps = 3;
++ break;
++
++ case OMAP_DSS_COLOR_RGB24U:
++ case OMAP_DSS_COLOR_ARGB32:
++ case OMAP_DSS_COLOR_RGBA32:
++ case OMAP_DSS_COLOR_RGBX32:
++ ps = 4;
++ break;
++
++ case OMAP_DSS_COLOR_YUV2:
++ case OMAP_DSS_COLOR_UYVY:
++ ps = 2;
++ break;
++ default:
++ BUG();
++ return;
++ }
++
++ DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width,
++ width, height);
++
++ /* width & height are overlay sizes, convert to fb sizes */
++
++ if (rotation == 0 || rotation == 2) {
++ fbw = width;
++ fbh = height;
++ } else {
++ fbw = height;
++ fbh = width;
++ }
++
++ switch (rotation + mirror * 4) {
++ case 0:
++ *offset0 = 0;
++ if (fieldmode)
++ *offset1 = screen_width * ps;
++ else
++ *offset1 = 0;
++ *row_inc = pixinc(1 + (screen_width - fbw) +
++ (fieldmode ? screen_width : 0),
++ ps);
++ *pix_inc = pixinc(1, ps);
++ break;
++ case 1:
++ *offset0 = screen_width * (fbh - 1) * ps;
++ if (fieldmode)
++ *offset1 = *offset0 + ps;
++ else
++ *offset1 = *offset0;
++ *row_inc = pixinc(screen_width * (fbh - 1) + 1 +
++ (fieldmode ? 1 : 0), ps);
++ *pix_inc = pixinc(-screen_width, ps);
++ break;
++ case 2:
++ *offset0 = (screen_width * (fbh - 1) + fbw - 1) * ps;
++ if (fieldmode)
++ *offset1 = *offset0 - screen_width * ps;
++ else
++ *offset1 = *offset0;
++ *row_inc = pixinc(-1 -
++ (screen_width - fbw) -
++ (fieldmode ? screen_width : 0),
++ ps);
++ *pix_inc = pixinc(-1, ps);
++ break;
++ case 3:
++ *offset0 = (fbw - 1) * ps;
++ if (fieldmode)
++ *offset1 = *offset0 - ps;
++ else
++ *offset1 = *offset0;
++ *row_inc = pixinc(-screen_width * (fbh - 1) - 1 -
++ (fieldmode ? 1 : 0), ps);
++ *pix_inc = pixinc(screen_width, ps);
++ break;
++
++ /* mirroring */
++ case 0 + 4:
++ *offset0 = (fbw - 1) * ps;
++ if (fieldmode)
++ *offset1 = *offset0 + screen_width * ps;
++ else
++ *offset1 = *offset0;
++ *row_inc = pixinc(screen_width * 2 - 1 +
++ (fieldmode ? screen_width : 0),
++ ps);
++ *pix_inc = pixinc(-1, ps);
++ break;
++
++ case 1 + 4:
++ *offset0 = 0;
++ if (fieldmode)
++ *offset1 = *offset0 + screen_width * ps;
++ else
++ *offset1 = *offset0;
++ *row_inc = pixinc(-screen_width * (fbh - 1) + 1 +
++ (fieldmode ? 1 : 0),
++ ps);
++ *pix_inc = pixinc(screen_width, ps);
++ break;
++
++ case 2 + 4:
++ *offset0 = screen_width * (fbh - 1) * ps;
++ if (fieldmode)
++ *offset1 = *offset0 + screen_width * ps;
++ else
++ *offset1 = *offset0;
++ *row_inc = pixinc(1 - screen_width * 2 -
++ (fieldmode ? screen_width : 0),
++ ps);
++ *pix_inc = pixinc(1, ps);
++ break;
++
++ case 3 + 4:
++ *offset0 = (screen_width * (fbh - 1) + fbw - 1) * ps;
++ if (fieldmode)
++ *offset1 = *offset0 + screen_width * ps;
++ else
++ *offset1 = *offset0;
++ *row_inc = pixinc(screen_width * (fbh - 1) - 1 -
++ (fieldmode ? 1 : 0),
++ ps);
++ *pix_inc = pixinc(-screen_width, ps);
++ break;
++
++ default:
++ BUG();
++ }
++}
++
++static int _dispc_setup_plane(enum omap_plane plane,
++ enum omap_channel channel_out,
++ u32 paddr, u16 screen_width,
++ u16 pos_x, u16 pos_y,
++ u16 width, u16 height,
++ u16 out_width, u16 out_height,
++ enum omap_color_mode color_mode,
++ bool ilace,
++ u8 rotation, int mirror)
++{
++ const int maxdownscale = cpu_is_omap34xx() ? 4 : 2;
++ bool five_taps = height > out_height * 2;
++ bool fieldmode = 0;
++ int cconv = 0;
++ unsigned offset0, offset1;
++ u16 row_inc;
++ u16 pix_inc;
++
++ if (plane == OMAP_DSS_GFX) {
++ if (width != out_width || height != out_height)
++ return -EINVAL;
++
++ switch (color_mode) {
++ case OMAP_DSS_COLOR_ARGB16:
++ case OMAP_DSS_COLOR_RGB16:
++ case OMAP_DSS_COLOR_RGB24P:
++ case OMAP_DSS_COLOR_RGB24U:
++ case OMAP_DSS_COLOR_ARGB32:
++ case OMAP_DSS_COLOR_RGBA32:
++ case OMAP_DSS_COLOR_RGBX32:
++ break;
++
++ default:
++ return -EINVAL;
++ }
++ } else {
++ /* video plane */
++ if (width > (2048 >> five_taps))
++ return -EINVAL;
++
++ if (out_width < width / maxdownscale ||
++ out_width > width * 8)
++ return -EINVAL;
++
++ if (out_height < height / maxdownscale ||
++ out_height > height * 8)
++ return -EINVAL;
++
++ switch (color_mode) {
++ case OMAP_DSS_COLOR_RGB16:
++ case OMAP_DSS_COLOR_RGB24P:
++ case OMAP_DSS_COLOR_RGB24U:
++ case OMAP_DSS_COLOR_RGBX32:
++ break;
++
++ case OMAP_DSS_COLOR_ARGB16:
++ case OMAP_DSS_COLOR_ARGB32:
++ case OMAP_DSS_COLOR_RGBA32:
++ if (plane == OMAP_DSS_VIDEO1)
++ return -EINVAL;
++ break;
++
++ case OMAP_DSS_COLOR_YUV2:
++ case OMAP_DSS_COLOR_UYVY:
++ cconv = 1;
++ break;
++
++ default:
++ return -EINVAL;
++ }
++ }
++
++ if (ilace && height >= out_height)
++ fieldmode = 1;
++
++ calc_rotation_offset(rotation, mirror,
++ screen_width, width, height, color_mode,
++ fieldmode,
++ &offset0, &offset1, &row_inc, &pix_inc);
++
++ DSSDBG("offset0 %u, offset1 %u, row_inc %d, pix_inc %d\n",
++ offset0, offset1, row_inc, pix_inc);
++
++ if (ilace) {
++ if (fieldmode)
++ height /= 2;
++ pos_y /= 2;
++ out_height /= 2;
++
++ DSSDBG("adjusting for ilace: height %d, pos_y %d, "
++ "out_height %d\n",
++ height, pos_y, out_height);
++ }
++
++ _dispc_set_channel_out(plane, channel_out);
++ _dispc_set_color_mode(plane, color_mode);
++
++ _dispc_set_plane_ba0(plane, paddr + offset0);
++ _dispc_set_plane_ba1(plane, paddr + offset1);
++
++ _dispc_set_row_inc(plane, row_inc);
++ _dispc_set_pix_inc(plane, pix_inc);
++
++ DSSDBG("%d,%d %dx%d -> %dx%d\n", pos_x, pos_y, width, height,
++ out_width, out_height);
++
++ _dispc_set_plane_pos(plane, pos_x, pos_y);
++
++ _dispc_set_pic_size(plane, width, height);
++
++ if (plane != OMAP_DSS_GFX) {
++ _dispc_set_scaling(plane, width, height,
++ out_width, out_height,
++ ilace);
++ _dispc_set_vid_size(plane, out_width, out_height);
++ _dispc_set_vid_color_conv(plane, cconv);
++ }
++
++ _dispc_set_rotation_attrs(plane, rotation, mirror, color_mode);
++
++ return 0;
++}
++
++static void _dispc_enable_plane(enum omap_plane plane, bool enable)
++{
++ REG_FLD_MOD(dispc_reg_att[plane], enable ? 1 : 0, 0, 0);
++}
++
++static void dispc_disable_isr(void *data, u32 mask)
++{
++ struct completion *compl = data;
++ complete(compl);
++}
++
++static void _enable_lcd_out(bool enable)
++{
++ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 0, 0);
++}
++
++void dispc_enable_lcd_out(bool enable)
++{
++ struct completion frame_done_completion;
++ bool is_on;
++ int r;
++
++ enable_clocks(1);
++
++ /* When we disable LCD output, we need to wait until frame is done.
++ * Otherwise the DSS is still working, and turning off the clocks
++ * prevents DSS from going to OFF mode */
++ is_on = REG_GET(DISPC_CONTROL, 0, 0);
++
++ if (!enable && is_on) {
++ init_completion(&frame_done_completion);
++
++ r = omap_dispc_register_isr(dispc_disable_isr,
++ &frame_done_completion,
++ DISPC_IRQ_FRAMEDONE);
++
++ if (r)
++ DSSERR("failed to register FRAMEDONE isr\n");
++ }
++
++ _enable_lcd_out(enable);
++
++ if (!enable && is_on) {
++ if (!wait_for_completion_timeout(&frame_done_completion,
++ msecs_to_jiffies(100)))
++ DSSERR("timeout waiting for FRAME DONE\n");
++
++ r = omap_dispc_unregister_isr(dispc_disable_isr,
++ &frame_done_completion,
++ DISPC_IRQ_FRAMEDONE);
++
++ if (r)
++ DSSERR("failed to unregister FRAMEDONE isr\n");
++ }
++
++ enable_clocks(0);
++}
++
++static void _enable_digit_out(bool enable)
++{
++ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 1, 1);
++}
++
++void dispc_enable_digit_out(bool enable)
++{
++ struct completion frame_done_completion;
++ int r;
++
++ enable_clocks(1);
++
++ if (REG_GET(DISPC_CONTROL, 1, 1) == enable) {
++ enable_clocks(0);
++ return;
++ }
++
++ if (enable) {
++ /* When we enable digit output, we'll get an extra digit
++ * sync lost interrupt, that we need to ignore */
++ dispc.irq_error_mask &= ~DISPC_IRQ_SYNC_LOST_DIGIT;
++ omap_dispc_set_irqs();
++ }
++
++ /* When we disable digit output, we need to wait until fields are done.
++ * Otherwise the DSS is still working, and turning off the clocks
++ * prevents DSS from going to OFF mode. And when enabling, we need to
++ * wait for the extra sync losts */
++ init_completion(&frame_done_completion);
++
++ r = omap_dispc_register_isr(dispc_disable_isr, &frame_done_completion,
++ DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD);
++ if (r)
++ DSSERR("failed to register EVSYNC isr\n");
++
++ _enable_digit_out(enable);
++
++ /* XXX I understand from TRM that we should only wait for the
++ * current field to complete. But it seems we have to wait
++ * for both fields */
++ if (!wait_for_completion_timeout(&frame_done_completion,
++ msecs_to_jiffies(100)))
++ DSSERR("timeout waiting for EVSYNC\n");
++
++ if (!wait_for_completion_timeout(&frame_done_completion,
++ msecs_to_jiffies(100)))
++ DSSERR("timeout waiting for EVSYNC\n");
++
++ r = omap_dispc_unregister_isr(dispc_disable_isr,
++ &frame_done_completion,
++ DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD);
++ if (r)
++ DSSERR("failed to unregister EVSYNC isr\n");
++
++ if (enable) {
++ dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR;
++ dispc_write_reg(DISPC_IRQSTATUS, DISPC_IRQ_SYNC_LOST_DIGIT);
++ omap_dispc_set_irqs();
++ }
++
++ enable_clocks(0);
++}
++
++void dispc_lcd_enable_signal_polarity(bool act_high)
++{
++ enable_clocks(1);
++ REG_FLD_MOD(DISPC_CONTROL, act_high ? 1 : 0, 29, 29);
++ enable_clocks(0);
++}
++
++void dispc_lcd_enable_signal(bool enable)
++{
++ enable_clocks(1);
++ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 28, 28);
++ enable_clocks(0);
++}
++
++void dispc_pck_free_enable(bool enable)
++{
++ enable_clocks(1);
++ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 27, 27);
++ enable_clocks(0);
++}
++
++void dispc_enable_fifohandcheck(bool enable)
++{
++ enable_clocks(1);
++ REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 16, 16);
++ enable_clocks(0);
++}
++
++
++void dispc_set_lcd_display_type(enum omap_lcd_display_type type)
++{
++ int mode;
++
++ switch (type) {
++ case OMAP_DSS_LCD_DISPLAY_STN:
++ mode = 0;
++ break;
++
++ case OMAP_DSS_LCD_DISPLAY_TFT:
++ mode = 1;
++ break;
++
++ default:
++ BUG();
++ return;
++ }
++
++ enable_clocks(1);
++ REG_FLD_MOD(DISPC_CONTROL, mode, 3, 3);
++ enable_clocks(0);
++}
++
++void dispc_set_loadmode(enum omap_dss_load_mode mode)
++{
++ enable_clocks(1);
++ REG_FLD_MOD(DISPC_CONFIG, mode, 2, 1);
++ enable_clocks(0);
++}
++
++
++void dispc_set_default_color(enum omap_channel channel, u32 color)
++{
++ const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0,
++ DISPC_DEFAULT_COLOR1 };
++
++ enable_clocks(1);
++ dispc_write_reg(def_reg[channel], color);
++ enable_clocks(0);
++}
++
++u32 dispc_get_default_color(enum omap_channel channel)
++{
++ const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0,
++ DISPC_DEFAULT_COLOR1 };
++ u32 l;
++
++ BUG_ON(channel != OMAP_DSS_CHANNEL_DIGIT &&
++ channel != OMAP_DSS_CHANNEL_LCD);
++
++ enable_clocks(1);
++ l = dispc_read_reg(def_reg[channel]);
++ enable_clocks(0);
++
++ return l;
++}
++
++void dispc_set_trans_key(enum omap_channel ch,
++ enum omap_dss_color_key_type type,
++ u32 trans_key)
++{
++ const struct dispc_reg tr_reg[] = {
++ DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 };
++
++ enable_clocks(1);
++ if (ch == OMAP_DSS_CHANNEL_LCD)
++ REG_FLD_MOD(DISPC_CONFIG, type, 11, 11);
++ else /* OMAP_DSS_CHANNEL_DIGIT */
++ REG_FLD_MOD(DISPC_CONFIG, type, 13, 13);
++
++ dispc_write_reg(tr_reg[ch], trans_key);
++ enable_clocks(0);
++}
++
++void dispc_get_trans_key(enum omap_channel ch,
++ enum omap_dss_color_key_type *type,
++ u32 *trans_key)
++{
++ const struct dispc_reg tr_reg[] = {
++ DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 };
++
++ enable_clocks(1);
++ if (type) {
++ if (ch == OMAP_DSS_CHANNEL_LCD)
++ *type = REG_GET(DISPC_CONFIG, 11, 11) >> 11;
++ else if (ch == OMAP_DSS_CHANNEL_DIGIT)
++ *type = REG_GET(DISPC_CONFIG, 13, 13) >> 13;
++ else
++ BUG();
++ }
++
++ if (trans_key)
++ *trans_key = dispc_read_reg(tr_reg[ch]);
++ enable_clocks(0);
++}
++
++void dispc_enable_trans_key(enum omap_channel ch, bool enable)
++{
++ enable_clocks(1);
++ if (ch == OMAP_DSS_CHANNEL_LCD)
++ REG_FLD_MOD(DISPC_CONFIG, enable, 10, 10);
++ else /* OMAP_DSS_CHANNEL_DIGIT */
++ REG_FLD_MOD(DISPC_CONFIG, enable, 12, 12);
++ enable_clocks(0);
++}
++
++bool dispc_trans_key_enabled(enum omap_channel ch)
++{
++ bool enabled;
++
++ enable_clocks(1);
++ if (ch == OMAP_DSS_CHANNEL_LCD)
++ enabled = REG_GET(DISPC_CONFIG, 10, 10);
++ else if (ch == OMAP_DSS_CHANNEL_DIGIT)
++ enabled = REG_GET(DISPC_CONFIG, 12, 12);
++ else BUG();
++ enable_clocks(0);
++
++ return enabled;
++}
++
++
++void dispc_set_tft_data_lines(u8 data_lines)
++{
++ int code;
++
++ switch (data_lines) {
++ case 12:
++ code = 0;
++ break;
++ case 16:
++ code = 1;
++ break;
++ case 18:
++ code = 2;
++ break;
++ case 24:
++ code = 3;
++ break;
++ default:
++ BUG();
++ return;
++ }
++
++ enable_clocks(1);
++ REG_FLD_MOD(DISPC_CONTROL, code, 9, 8);
++ enable_clocks(0);
++}
++
++void dispc_set_parallel_interface_mode(enum omap_parallel_interface_mode mode)
++{
++ u32 l;
++ int stallmode;
++ int gpout0 = 1;
++ int gpout1;
++
++ switch (mode) {
++ case OMAP_DSS_PARALLELMODE_BYPASS:
++ stallmode = 0;
++ gpout1 = 1;
++ break;
++
++ case OMAP_DSS_PARALLELMODE_RFBI:
++ stallmode = 1;
++ gpout1 = 0;
++ break;
++
++ case OMAP_DSS_PARALLELMODE_DSI:
++ stallmode = 1;
++ gpout1 = 1;
++ break;
++
++ default:
++ BUG();
++ return;
++ }
++
++ enable_clocks(1);
++
++ l = dispc_read_reg(DISPC_CONTROL);
++
++ l = FLD_MOD(l, stallmode, 11, 11);
++ l = FLD_MOD(l, gpout0, 15, 15);
++ l = FLD_MOD(l, gpout1, 16, 16);
++
++ dispc_write_reg(DISPC_CONTROL, l);
++
++ enable_clocks(0);
++}
++
++static void _dispc_set_lcd_timings(int hsw, int hfp, int hbp,
++ int vsw, int vfp, int vbp)
++{
++ u32 timing_h, timing_v;
++
++ if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) {
++ BUG_ON(hsw < 1 || hsw > 64);
++ BUG_ON(hfp < 1 || hfp > 256);
++ BUG_ON(hbp < 1 || hbp > 256);
++
++ BUG_ON(vsw < 1 || vsw > 64);
++ BUG_ON(vfp < 0 || vfp > 255);
++ BUG_ON(vbp < 0 || vbp > 255);
++
++ timing_h = FLD_VAL(hsw-1, 5, 0) | FLD_VAL(hfp-1, 15, 8) |
++ FLD_VAL(hbp-1, 27, 20);
++
++ timing_v = FLD_VAL(vsw-1, 5, 0) | FLD_VAL(vfp, 15, 8) |
++ FLD_VAL(vbp, 27, 20);
++ } else {
++ BUG_ON(hsw < 1 || hsw > 256);
++ BUG_ON(hfp < 1 || hfp > 4096);
++ BUG_ON(hbp < 1 || hbp > 4096);
++
++ BUG_ON(vsw < 1 || vsw > 256);
++ BUG_ON(vfp < 0 || vfp > 4095);
++ BUG_ON(vbp < 0 || vbp > 4095);
++
++ timing_h = FLD_VAL(hsw-1, 7, 0) | FLD_VAL(hfp-1, 19, 8) |
++ FLD_VAL(hbp-1, 31, 20);
++
++ timing_v = FLD_VAL(vsw-1, 7, 0) | FLD_VAL(vfp, 19, 8) |
++ FLD_VAL(vbp, 31, 20);
++ }
++
++ enable_clocks(1);
++ dispc_write_reg(DISPC_TIMING_H, timing_h);
++ dispc_write_reg(DISPC_TIMING_V, timing_v);
++ enable_clocks(0);
++}
++
++/* change name to mode? */
++void dispc_set_lcd_timings(struct omap_video_timings *timings)
++{
++ unsigned xtot, ytot;
++ unsigned long ht, vt;
++
++ _dispc_set_lcd_timings(timings->hsw, timings->hfp, timings->hbp,
++ timings->vsw, timings->vfp, timings->vbp);
++
++ dispc_set_lcd_size(timings->x_res, timings->y_res);
++
++ xtot = timings->x_res + timings->hfp + timings->hsw + timings->hbp;
++ ytot = timings->y_res + timings->vfp + timings->vsw + timings->vbp;
++
++ ht = (timings->pixel_clock * 1000) / xtot;
++ vt = (timings->pixel_clock * 1000) / xtot / ytot;
++
++ DSSDBG("xres %u yres %u\n", timings->x_res, timings->y_res);
++ DSSDBG("pck %u\n", timings->pixel_clock);
++ DSSDBG("hsw %d hfp %d hbp %d vsw %d vfp %d vbp %d\n",
++ timings->hsw, timings->hfp, timings->hbp,
++ timings->vsw, timings->vfp, timings->vbp);
++
++ DSSDBG("hsync %luHz, vsync %luHz\n", ht, vt);
++}
++
++void dispc_set_lcd_divisor(u16 lck_div, u16 pck_div)
++{
++ BUG_ON(lck_div < 1);
++ BUG_ON(pck_div < 2);
++
++ enable_clocks(1);
++ dispc_write_reg(DISPC_DIVISOR,
++ FLD_VAL(lck_div, 23, 16) | FLD_VAL(pck_div, 7, 0));
++ enable_clocks(0);
++}
++
++static void dispc_get_lcd_divisor(int *lck_div, int *pck_div)
++{
++ u32 l;
++ l = dispc_read_reg(DISPC_DIVISOR);
++ *lck_div = FLD_GET(l, 23, 16);
++ *pck_div = FLD_GET(l, 7, 0);
++}
++
++unsigned long dispc_fclk_rate(void)
++{
++ unsigned long r = 0;
++
++ if (dss_get_dispc_clk_source() == 0)
++ r = dss_clk_get_rate(DSS_CLK_FCK1);
++ else
++#ifdef CONFIG_OMAP2_DSS_DSI
++ r = dsi_get_dsi1_pll_rate();
++#else
++ BUG();
++#endif
++ return r;
++}
++
++unsigned long dispc_pclk_rate(void)
++{
++ int lcd, pcd;
++ unsigned long r;
++ u32 l;
++
++ l = dispc_read_reg(DISPC_DIVISOR);
++
++ lcd = FLD_GET(l, 23, 16);
++ pcd = FLD_GET(l, 7, 0);
++
++ r = dispc_fclk_rate();
++
++ return r / lcd / pcd;
++}
++
++void dispc_dump_clocks(struct seq_file *s)
++{
++ int lcd, pcd;
++
++ enable_clocks(1);
++
++ dispc_get_lcd_divisor(&lcd, &pcd);
++
++ seq_printf(s, "- dispc -\n");
++
++ seq_printf(s, "dispc fclk source = %s\n",
++ dss_get_dispc_clk_source() == 0 ?
++ "dss1_alwon_fclk" : "dsi1_pll_fclk");
++
++ seq_printf(s, "pixel clk = %lu / %d / %d = %lu\n",
++ dispc_fclk_rate(),
++ lcd, pcd,
++ dispc_pclk_rate());
++
++ enable_clocks(0);
++}
++
++void dispc_dump_regs(struct seq_file *s)
++{
++#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dispc_read_reg(r))
++
++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ DUMPREG(DISPC_REVISION);
++ DUMPREG(DISPC_SYSCONFIG);
++ DUMPREG(DISPC_SYSSTATUS);
++ DUMPREG(DISPC_IRQSTATUS);
++ DUMPREG(DISPC_IRQENABLE);
++ DUMPREG(DISPC_CONTROL);
++ DUMPREG(DISPC_CONFIG);
++ DUMPREG(DISPC_CAPABLE);
++ DUMPREG(DISPC_DEFAULT_COLOR0);
++ DUMPREG(DISPC_DEFAULT_COLOR1);
++ DUMPREG(DISPC_TRANS_COLOR0);
++ DUMPREG(DISPC_TRANS_COLOR1);
++ DUMPREG(DISPC_LINE_STATUS);
++ DUMPREG(DISPC_LINE_NUMBER);
++ DUMPREG(DISPC_TIMING_H);
++ DUMPREG(DISPC_TIMING_V);
++ DUMPREG(DISPC_POL_FREQ);
++ DUMPREG(DISPC_DIVISOR);
++ DUMPREG(DISPC_GLOBAL_ALPHA);
++ DUMPREG(DISPC_SIZE_DIG);
++ DUMPREG(DISPC_SIZE_LCD);
++
++ DUMPREG(DISPC_GFX_BA0);
++ DUMPREG(DISPC_GFX_BA1);
++ DUMPREG(DISPC_GFX_POSITION);
++ DUMPREG(DISPC_GFX_SIZE);
++ DUMPREG(DISPC_GFX_ATTRIBUTES);
++ DUMPREG(DISPC_GFX_FIFO_THRESHOLD);
++ DUMPREG(DISPC_GFX_FIFO_SIZE_STATUS);
++ DUMPREG(DISPC_GFX_ROW_INC);
++ DUMPREG(DISPC_GFX_PIXEL_INC);
++ DUMPREG(DISPC_GFX_WINDOW_SKIP);
++ DUMPREG(DISPC_GFX_TABLE_BA);
++
++ DUMPREG(DISPC_DATA_CYCLE1);
++ DUMPREG(DISPC_DATA_CYCLE2);
++ DUMPREG(DISPC_DATA_CYCLE3);
++
++ DUMPREG(DISPC_CPR_COEF_R);
++ DUMPREG(DISPC_CPR_COEF_G);
++ DUMPREG(DISPC_CPR_COEF_B);
++
++ DUMPREG(DISPC_GFX_PRELOAD);
++
++ DUMPREG(DISPC_VID_BA0(0));
++ DUMPREG(DISPC_VID_BA1(0));
++ DUMPREG(DISPC_VID_POSITION(0));
++ DUMPREG(DISPC_VID_SIZE(0));
++ DUMPREG(DISPC_VID_ATTRIBUTES(0));
++ DUMPREG(DISPC_VID_FIFO_THRESHOLD(0));
++ DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(0));
++ DUMPREG(DISPC_VID_ROW_INC(0));
++ DUMPREG(DISPC_VID_PIXEL_INC(0));
++ DUMPREG(DISPC_VID_FIR(0));
++ DUMPREG(DISPC_VID_PICTURE_SIZE(0));
++ DUMPREG(DISPC_VID_ACCU0(0));
++ DUMPREG(DISPC_VID_ACCU1(0));
++
++ DUMPREG(DISPC_VID_BA0(1));
++ DUMPREG(DISPC_VID_BA1(1));
++ DUMPREG(DISPC_VID_POSITION(1));
++ DUMPREG(DISPC_VID_SIZE(1));
++ DUMPREG(DISPC_VID_ATTRIBUTES(1));
++ DUMPREG(DISPC_VID_FIFO_THRESHOLD(1));
++ DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(1));
++ DUMPREG(DISPC_VID_ROW_INC(1));
++ DUMPREG(DISPC_VID_PIXEL_INC(1));
++ DUMPREG(DISPC_VID_FIR(1));
++ DUMPREG(DISPC_VID_PICTURE_SIZE(1));
++ DUMPREG(DISPC_VID_ACCU0(1));
++ DUMPREG(DISPC_VID_ACCU1(1));
++
++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 0));
++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 1));
++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 2));
++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 3));
++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 4));
++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 5));
++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 6));
++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 7));
++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 0));
++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 1));
++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 2));
++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 3));
++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 4));
++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 5));
++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 6));
++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 7));
++ DUMPREG(DISPC_VID_CONV_COEF(0, 0));
++ DUMPREG(DISPC_VID_CONV_COEF(0, 1));
++ DUMPREG(DISPC_VID_CONV_COEF(0, 2));
++ DUMPREG(DISPC_VID_CONV_COEF(0, 3));
++ DUMPREG(DISPC_VID_CONV_COEF(0, 4));
++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 0));
++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 1));
++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 2));
++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 3));
++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 4));
++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 5));
++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 6));
++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 7));
++
++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 0));
++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 1));
++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 2));
++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 3));
++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 4));
++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 5));
++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 6));
++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 7));
++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 0));
++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 1));
++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 2));
++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 3));
++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 4));
++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 5));
++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 6));
++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 7));
++ DUMPREG(DISPC_VID_CONV_COEF(1, 0));
++ DUMPREG(DISPC_VID_CONV_COEF(1, 1));
++ DUMPREG(DISPC_VID_CONV_COEF(1, 2));
++ DUMPREG(DISPC_VID_CONV_COEF(1, 3));
++ DUMPREG(DISPC_VID_CONV_COEF(1, 4));
++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 0));
++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 1));
++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 2));
++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 3));
++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 4));
++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 5));
++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 6));
++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 7));
++
++ DUMPREG(DISPC_VID_PRELOAD(0));
++ DUMPREG(DISPC_VID_PRELOAD(1));
++
++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
++#undef DUMPREG
++}
++
++static void _dispc_set_pol_freq(bool onoff, bool rf, bool ieo, bool ipc,
++ bool ihs, bool ivs, u8 acbi, u8 acb)
++{
++ u32 l = 0;
++
++ DSSDBG("onoff %d rf %d ieo %d ipc %d ihs %d ivs %d acbi %d acb %d\n",
++ onoff, rf, ieo, ipc, ihs, ivs, acbi, acb);
++
++ l |= FLD_VAL(onoff, 17, 17);
++ l |= FLD_VAL(rf, 16, 16);
++ l |= FLD_VAL(ieo, 15, 15);
++ l |= FLD_VAL(ipc, 14, 14);
++ l |= FLD_VAL(ihs, 13, 13);
++ l |= FLD_VAL(ivs, 12, 12);
++ l |= FLD_VAL(acbi, 11, 8);
++ l |= FLD_VAL(acb, 7, 0);
++
++ enable_clocks(1);
++ dispc_write_reg(DISPC_POL_FREQ, l);
++ enable_clocks(0);
++}
++
++void dispc_set_pol_freq(struct omap_panel *panel)
++{
++ _dispc_set_pol_freq((panel->config & OMAP_DSS_LCD_ONOFF) != 0,
++ (panel->config & OMAP_DSS_LCD_RF) != 0,
++ (panel->config & OMAP_DSS_LCD_IEO) != 0,
++ (panel->config & OMAP_DSS_LCD_IPC) != 0,
++ (panel->config & OMAP_DSS_LCD_IHS) != 0,
++ (panel->config & OMAP_DSS_LCD_IVS) != 0,
++ panel->acbi, panel->acb);
++}
++
++void find_lck_pck_divs(bool is_tft, unsigned long req_pck, unsigned long fck,
++ u16 *lck_div, u16 *pck_div)
++{
++ u16 pcd_min = is_tft ? 2 : 3;
++ unsigned long best_pck;
++ u16 best_ld, cur_ld;
++ u16 best_pd, cur_pd;
++
++ best_pck = 0;
++ best_ld = 0;
++ best_pd = 0;
++
++ for (cur_ld = 1; cur_ld <= 255; ++cur_ld) {
++ unsigned long lck = fck / cur_ld;
++
++ for (cur_pd = pcd_min; cur_pd <= 255; ++cur_pd) {
++ unsigned long pck = lck / cur_pd;
++ long old_delta = abs(best_pck - req_pck);
++ long new_delta = abs(pck - req_pck);
++
++ if (best_pck == 0 || new_delta < old_delta) {
++ best_pck = pck;
++ best_ld = cur_ld;
++ best_pd = cur_pd;
++
++ if (pck == req_pck)
++ goto found;
++ }
++
++ if (pck < req_pck)
++ break;
++ }
++
++ if (lck / pcd_min < req_pck)
++ break;
++ }
++
++found:
++ *lck_div = best_ld;
++ *pck_div = best_pd;
++}
++
++int dispc_calc_clock_div(bool is_tft, unsigned long req_pck,
++ struct dispc_clock_info *cinfo)
++{
++ unsigned long prate;
++ struct dispc_clock_info cur, best;
++ int match = 0;
++ int min_fck_per_pck;
++ unsigned long fck_rate = dss_clk_get_rate(DSS_CLK_FCK1);
++
++ if (cpu_is_omap34xx())
++ prate = clk_get_rate(clk_get_parent(dispc.dpll4_m4_ck));
++ else
++ prate = 0;
++
++ if (req_pck == dispc.cache_req_pck &&
++ ((cpu_is_omap34xx() && prate == dispc.cache_prate) ||
++ dispc.cache_cinfo.fck == fck_rate)) {
++ DSSDBG("dispc clock info found from cache.\n");
++ *cinfo = dispc.cache_cinfo;
++ return 0;
++ }
++
++ min_fck_per_pck = CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK;
++
++ if (min_fck_per_pck &&
++ req_pck * min_fck_per_pck > DISPC_MAX_FCK) {
++ DSSERR("Requested pixel clock not possible with the current "
++ "OMAP2_DSS_MIN_FCK_PER_PCK setting. Turning "
++ "the constraint off.\n");
++ min_fck_per_pck = 0;
++ }
++
++retry:
++ memset(&cur, 0, sizeof(cur));
++ memset(&best, 0, sizeof(best));
++
++ if (cpu_is_omap24xx()) {
++ /* XXX can we change the clock on omap2? */
++ cur.fck = dss_clk_get_rate(DSS_CLK_FCK1);
++ cur.fck_div = 1;
++
++ match = 1;
++
++ find_lck_pck_divs(is_tft, req_pck, cur.fck,
++ &cur.lck_div, &cur.pck_div);
++
++ cur.lck = cur.fck / cur.lck_div;
++ cur.pck = cur.lck / cur.pck_div;
++
++ best = cur;
++
++ goto found;
++ } else if (cpu_is_omap34xx()) {
++ for (cur.fck_div = 16; cur.fck_div > 0; --cur.fck_div) {
++ cur.fck = prate / cur.fck_div * 2;
++
++ if (cur.fck > DISPC_MAX_FCK)
++ continue;
++
++ if (min_fck_per_pck &&
++ cur.fck < req_pck * min_fck_per_pck)
++ continue;
++
++ match = 1;
++
++ find_lck_pck_divs(is_tft, req_pck, cur.fck,
++ &cur.lck_div, &cur.pck_div);
++
++ cur.lck = cur.fck / cur.lck_div;
++ cur.pck = cur.lck / cur.pck_div;
++
++ if (abs(cur.pck - req_pck) < abs(best.pck - req_pck)) {
++ best = cur;
++
++ if (cur.pck == req_pck)
++ goto found;
++ }
++ }
++ } else {
++ BUG();
++ }
++
++found:
++ if (!match) {
++ if (min_fck_per_pck) {
++ DSSERR("Could not find suitable clock settings.\n"
++ "Turning FCK/PCK constraint off and"
++ "trying again.\n");
++ min_fck_per_pck = 0;
++ goto retry;
++ }
++
++ DSSERR("Could not find suitable clock settings.\n");
++
++ return -EINVAL;
++ }
++
++ if (cinfo)
++ *cinfo = best;
++
++ dispc.cache_req_pck = req_pck;
++ dispc.cache_prate = prate;
++ dispc.cache_cinfo = best;
++
++ return 0;
++}
++
++int dispc_set_clock_div(struct dispc_clock_info *cinfo)
++{
++ unsigned long prate;
++ int r;
++
++ if (cpu_is_omap34xx()) {
++ prate = clk_get_rate(clk_get_parent(dispc.dpll4_m4_ck));
++ DSSDBG("dpll4_m4 = %ld\n", prate);
++ }
++
++ DSSDBG("fck = %ld (%d)\n", cinfo->fck, cinfo->fck_div);
++ DSSDBG("lck = %ld (%d)\n", cinfo->lck, cinfo->lck_div);
++ DSSDBG("pck = %ld (%d)\n", cinfo->pck, cinfo->pck_div);
++
++ if (cpu_is_omap34xx()) {
++ r = clk_set_rate(dispc.dpll4_m4_ck, prate / cinfo->fck_div);
++ if (r)
++ return r;
++ }
++
++ dispc_set_lcd_divisor(cinfo->lck_div, cinfo->pck_div);
++
++ return 0;
++}
++
++int dispc_get_clock_div(struct dispc_clock_info *cinfo)
++{
++ cinfo->fck = dss_clk_get_rate(DSS_CLK_FCK1);
++
++ if (cpu_is_omap34xx()) {
++ unsigned long prate;
++ prate = clk_get_rate(clk_get_parent(dispc.dpll4_m4_ck));
++ cinfo->fck_div = prate / (cinfo->fck / 2);
++ } else {
++ cinfo->fck_div = 0;
++ }
++
++ cinfo->lck_div = REG_GET(DISPC_DIVISOR, 23, 16);
++ cinfo->pck_div = REG_GET(DISPC_DIVISOR, 7, 0);
++
++ cinfo->lck = cinfo->fck / cinfo->lck_div;
++ cinfo->pck = cinfo->lck / cinfo->pck_div;
++
++ return 0;
++}
++
++static void omap_dispc_set_irqs(void)
++{
++ unsigned long flags;
++ u32 mask = dispc.irq_error_mask;
++ int i;
++ struct omap_dispc_isr_data *isr_data;
++
++ spin_lock_irqsave(&dispc.irq_lock, flags);
++
++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
++ isr_data = &dispc.registered_isr[i];
++
++ if (isr_data->isr == NULL)
++ continue;
++
++ mask |= isr_data->mask;
++ }
++
++ enable_clocks(1);
++ dispc_write_reg(DISPC_IRQENABLE, mask);
++ enable_clocks(0);
++
++ spin_unlock_irqrestore(&dispc.irq_lock, flags);
++}
++
++int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask)
++{
++ int i;
++ int ret;
++ unsigned long flags;
++ struct omap_dispc_isr_data *isr_data;
++
++ if (isr == NULL)
++ return -EINVAL;
++
++ spin_lock_irqsave(&dispc.irq_lock, flags);
++
++ /* check for duplicate entry */
++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
++ isr_data = &dispc.registered_isr[i];
++ if (isr_data->isr == isr && isr_data->arg == arg &&
++ isr_data->mask == mask) {
++ ret = -EINVAL;
++ goto err;
++ }
++ }
++
++ isr_data = NULL;
++ ret = -EBUSY;
++
++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
++ isr_data = &dispc.registered_isr[i];
++
++ if (isr_data->isr != NULL)
++ continue;
++
++ isr_data->isr = isr;
++ isr_data->arg = arg;
++ isr_data->mask = mask;
++ ret = 0;
++
++ break;
++ }
++err:
++ spin_unlock_irqrestore(&dispc.irq_lock, flags);
++
++ if (ret == 0)
++ omap_dispc_set_irqs();
++
++ return ret;
++}
++EXPORT_SYMBOL(omap_dispc_register_isr);
++
++int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask)
++{
++ int i;
++ unsigned long flags;
++ int ret = -EINVAL;
++ struct omap_dispc_isr_data *isr_data;
++
++ spin_lock_irqsave(&dispc.irq_lock, flags);
++
++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
++ isr_data = &dispc.registered_isr[i];
++ if (isr_data->isr != isr || isr_data->arg != arg ||
++ isr_data->mask != mask)
++ continue;
++
++ /* found the correct isr */
++
++ isr_data->isr = NULL;
++ isr_data->arg = NULL;
++ isr_data->mask = 0;
++
++ ret = 0;
++ break;
++ }
++
++ spin_unlock_irqrestore(&dispc.irq_lock, flags);
++
++ if (ret == 0)
++ omap_dispc_set_irqs();
++
++ return ret;
++}
++EXPORT_SYMBOL(omap_dispc_unregister_isr);
++
++#ifdef DEBUG
++static void print_irq_status(u32 status)
++{
++ if ((status & dispc.irq_error_mask) == 0)
++ return;
++
++ printk(KERN_DEBUG "DISPC IRQ: 0x%x: ", status);
++
++#define PIS(x) \
++ if (status & DISPC_IRQ_##x) \
++ printk(#x " ");
++ PIS(GFX_FIFO_UNDERFLOW);
++ PIS(OCP_ERR);
++ PIS(VID1_FIFO_UNDERFLOW);
++ PIS(VID2_FIFO_UNDERFLOW);
++ PIS(SYNC_LOST);
++ PIS(SYNC_LOST_DIGIT);
++#undef PIS
++
++ printk("\n");
++}
++#endif
++
++/* Called from dss.c. Note that we don't touch clocks here,
++ * but we presume they are on because we got an IRQ. However,
++ * an irq handler may turn the clocks off, so we may not have
++ * clock later in the function. */
++void dispc_irq_handler(void)
++{
++ int i;
++ u32 irqstatus = dispc_read_reg(DISPC_IRQSTATUS);
++ u32 handledirqs = 0;
++ u32 unhandled_errors;
++ struct omap_dispc_isr_data *isr_data;
++
++#ifdef DEBUG
++ if (dss_debug)
++ print_irq_status(irqstatus);
++#endif
++ /* Ack the interrupt. Do it here before clocks are possibly turned
++ * off */
++ dispc_write_reg(DISPC_IRQSTATUS, irqstatus);
++
++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
++ isr_data = &dispc.registered_isr[i];
++
++ if (!isr_data->isr)
++ continue;
++
++ if (isr_data->mask & irqstatus) {
++ isr_data->isr(isr_data->arg, irqstatus);
++ handledirqs |= isr_data->mask;
++ }
++ }
++
++ unhandled_errors = irqstatus & ~handledirqs & dispc.irq_error_mask;
++
++ if (unhandled_errors) {
++ spin_lock(&dispc.error_lock);
++ dispc.error_irqs |= unhandled_errors;
++ spin_unlock(&dispc.error_lock);
++
++ dispc.irq_error_mask &= ~unhandled_errors;
++ omap_dispc_set_irqs();
++
++ schedule_work(&dispc.error_work);
++ }
++}
++
++static void dispc_error_worker(struct work_struct *work)
++{
++ int i;
++ u32 errors;
++ unsigned long flags;
++
++ spin_lock_irqsave(&dispc.error_lock, flags);
++ errors = dispc.error_irqs;
++ dispc.error_irqs = 0;
++ spin_unlock_irqrestore(&dispc.error_lock, flags);
++
++ if (errors & DISPC_IRQ_GFX_FIFO_UNDERFLOW) {
++ DSSERR("GFX_FIFO_UNDERFLOW, disabling GFX\n");
++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
++ struct omap_overlay *ovl;
++ ovl = omap_dss_get_overlay(i);
++
++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
++ continue;
++
++ if (ovl->id == 0) {
++ dispc_enable_plane(ovl->id, 0);
++ dispc_go(ovl->manager->id);
++ mdelay(50);
++ break;
++ }
++ }
++ }
++
++ if (errors & DISPC_IRQ_VID1_FIFO_UNDERFLOW) {
++ DSSERR("VID1_FIFO_UNDERFLOW, disabling VID1\n");
++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
++ struct omap_overlay *ovl;
++ ovl = omap_dss_get_overlay(i);
++
++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
++ continue;
++
++ if (ovl->id == 1) {
++ dispc_enable_plane(ovl->id, 0);
++ dispc_go(ovl->manager->id);
++ mdelay(50);
++ break;
++ }
++ }
++ }
++
++ if (errors & DISPC_IRQ_VID2_FIFO_UNDERFLOW) {
++ DSSERR("VID2_FIFO_UNDERFLOW, disabling VID2\n");
++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
++ struct omap_overlay *ovl;
++ ovl = omap_dss_get_overlay(i);
++
++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
++ continue;
++
++ if (ovl->id == 2) {
++ dispc_enable_plane(ovl->id, 0);
++ dispc_go(ovl->manager->id);
++ mdelay(50);
++ break;
++ }
++ }
++ }
++
++ if (errors & DISPC_IRQ_SYNC_LOST) {
++ DSSERR("SYNC_LOST, disabling LCD\n");
++ for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
++ struct omap_overlay_manager *mgr;
++ mgr = omap_dss_get_overlay_manager(i);
++
++ if (mgr->id == OMAP_DSS_CHANNEL_LCD) {
++ mgr->display->disable(mgr->display);
++ break;
++ }
++ }
++ }
++
++ if (errors & DISPC_IRQ_SYNC_LOST_DIGIT) {
++ DSSERR("SYNC_LOST_DIGIT, disabling TV\n");
++ for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
++ struct omap_overlay_manager *mgr;
++ mgr = omap_dss_get_overlay_manager(i);
++
++ if (mgr->id == OMAP_DSS_CHANNEL_DIGIT) {
++ mgr->display->disable(mgr->display);
++ break;
++ }
++ }
++ }
++
++ if (errors & DISPC_IRQ_OCP_ERR) {
++ DSSERR("OCP_ERR\n");
++ for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
++ struct omap_overlay_manager *mgr;
++ mgr = omap_dss_get_overlay_manager(i);
++
++ if (mgr->caps & OMAP_DSS_OVL_CAP_DISPC)
++ mgr->display->disable(mgr->display);
++ }
++ }
++
++ dispc.irq_error_mask |= errors;
++ omap_dispc_set_irqs();
++}
++
++int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout)
++{
++ void dispc_irq_wait_handler(void *data, u32 mask)
++ {
++ complete((struct completion *)data);
++ }
++
++ int r;
++ DECLARE_COMPLETION_ONSTACK(completion);
++
++ r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion,
++ irqmask);
++
++ if (r)
++ return r;
++
++ timeout = wait_for_completion_timeout(&completion, timeout);
++
++ omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask);
++
++ if (timeout == 0)
++ return -ETIMEDOUT;
++
++ if (timeout == -ERESTARTSYS)
++ return -ERESTARTSYS;
++
++ return 0;
++}
++
++int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,
++ unsigned long timeout)
++{
++ void dispc_irq_wait_handler(void *data, u32 mask)
++ {
++ complete((struct completion *)data);
++ }
++
++ int r;
++ DECLARE_COMPLETION_ONSTACK(completion);
++
++ r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion,
++ irqmask);
++
++ if (r)
++ return r;
++
++ timeout = wait_for_completion_interruptible_timeout(&completion,
++ timeout);
++
++ omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask);
++
++ if (timeout == 0)
++ return -ETIMEDOUT;
++
++ if (timeout == -ERESTARTSYS)
++ return -ERESTARTSYS;
++
++ return 0;
++}
++
++#ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC
++void dispc_fake_vsync_irq(void)
++{
++ u32 irqstatus = DISPC_IRQ_VSYNC;
++ int i;
++
++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
++ struct omap_dispc_isr_data *isr_data;
++ isr_data = &dispc.registered_isr[i];
++
++ if (!isr_data->isr)
++ continue;
++
++ if (isr_data->mask & irqstatus)
++ isr_data->isr(isr_data->arg, irqstatus);
++ }
++}
++#endif
++
++static void _omap_dispc_initialize_irq(void)
++{
++ memset(dispc.registered_isr, 0, sizeof(dispc.registered_isr));
++
++ dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR;
++
++ /* there's SYNC_LOST_DIGIT waiting after enabling the DSS,
++ * so clear it */
++ dispc_write_reg(DISPC_IRQSTATUS, dispc_read_reg(DISPC_IRQSTATUS));
++
++ omap_dispc_set_irqs();
++}
++
++static void _omap_dispc_initial_config(void)
++{
++ u32 l;
++
++ l = dispc_read_reg(DISPC_SYSCONFIG);
++ l = FLD_MOD(l, 2, 13, 12); /* MIDLEMODE: smart standby */
++ l = FLD_MOD(l, 2, 4, 3); /* SIDLEMODE: smart idle */
++ l = FLD_MOD(l, 1, 2, 2); /* ENWAKEUP */
++ l = FLD_MOD(l, 1, 0, 0); /* AUTOIDLE */
++ dispc_write_reg(DISPC_SYSCONFIG, l);
++
++ /* FUNCGATED */
++ REG_FLD_MOD(DISPC_CONFIG, 1, 9, 9);
++
++ /* L3 firewall setting: enable access to OCM RAM */
++ if (cpu_is_omap24xx())
++ __raw_writel(0x402000b0, IO_ADDRESS(0x680050a0));
++
++ _dispc_setup_color_conv_coef();
++
++ dispc_set_loadmode(OMAP_DSS_LOAD_FRAME_ONLY);
++}
++
++int dispc_init(void)
++{
++ u32 rev;
++
++ spin_lock_init(&dispc.irq_lock);
++ spin_lock_init(&dispc.error_lock);
++
++ INIT_WORK(&dispc.error_work, dispc_error_worker);
++
++ dispc.base = ioremap(DISPC_BASE, DISPC_SZ_REGS);
++ if (!dispc.base) {
++ DSSERR("can't ioremap DISPC\n");
++ return -ENOMEM;
++ }
++
++ if (cpu_is_omap34xx()) {
++ dispc.dpll4_m4_ck = clk_get(NULL, "dpll4_m4_ck");
++ if (IS_ERR(dispc.dpll4_m4_ck)) {
++ DSSERR("Failed to get dpll4_m4_ck\n");
++ return -ENODEV;
++ }
++ }
++
++ enable_clocks(1);
++
++ _omap_dispc_initial_config();
++
++ _omap_dispc_initialize_irq();
++
++ dispc_save_context();
++
++ rev = dispc_read_reg(DISPC_REVISION);
++ printk(KERN_INFO "OMAP DISPC rev %d.%d\n",
++ FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
++
++ enable_clocks(0);
++
++ return 0;
++}
++
++void dispc_exit(void)
++{
++ if (cpu_is_omap34xx())
++ clk_put(dispc.dpll4_m4_ck);
++ iounmap(dispc.base);
++}
++
++int dispc_enable_plane(enum omap_plane plane, bool enable)
++{
++ DSSDBG("dispc_enable_plane %d, %d\n", plane, enable);
++
++ enable_clocks(1);
++ _dispc_enable_plane(plane, enable);
++ enable_clocks(0);
++
++ return 0;
++}
++
++int dispc_setup_plane(enum omap_plane plane, enum omap_channel channel_out,
++ u32 paddr, u16 screen_width,
++ u16 pos_x, u16 pos_y,
++ u16 width, u16 height,
++ u16 out_width, u16 out_height,
++ enum omap_color_mode color_mode,
++ bool ilace,
++ u8 rotation, bool mirror)
++{
++ int r = 0;
++
++ DSSDBG("dispc_setup_plane %d, ch %d, pa %x, sw %d, %d,%d, %dx%d -> "
++ "%dx%d, ilace %d, cmode %x, rot %d, mir %d\n",
++ plane, channel_out, paddr, screen_width, pos_x, pos_y,
++ width, height,
++ out_width, out_height,
++ ilace, color_mode,
++ rotation, mirror);
++
++ enable_clocks(1);
++
++ r = _dispc_setup_plane(plane, channel_out,
++ paddr, screen_width,
++ pos_x, pos_y,
++ width, height,
++ out_width, out_height,
++ color_mode, ilace,
++ rotation, mirror);
++
++ enable_clocks(0);
++
++ return r;
++}
++
++static int dispc_is_intersecting(int x1, int y1, int w1, int h1,
++ int x2, int y2, int w2, int h2)
++{
++ if (x1 >= (x2+w2))
++ return 0;
++
++ if ((x1+w1) <= x2)
++ return 0;
++
++ if (y1 >= (y2+h2))
++ return 0;
++
++ if ((y1+h1) <= y2)
++ return 0;
++
++ return 1;
++}
++
++static int dispc_is_overlay_scaled(struct omap_overlay_info *pi)
++{
++ if (pi->width != pi->out_width)
++ return 1;
++
++ if (pi->height != pi->out_height)
++ return 1;
++
++ return 0;
++}
++
++/* returns the area that needs updating */
++void dispc_setup_partial_planes(struct omap_display *display,
++ u16 *xi, u16 *yi, u16 *wi, u16 *hi)
++{
++ struct omap_overlay_manager *mgr;
++ int i;
++
++ int x, y, w, h;
++
++ x = *xi;
++ y = *yi;
++ w = *wi;
++ h = *hi;
++
++ DSSDBG("dispc_setup_partial_planes %d,%d %dx%d\n",
++ *xi, *yi, *wi, *hi);
++
++
++ mgr = display->manager;
++
++ if (!mgr) {
++ DSSDBG("no manager\n");
++ return;
++ }
++
++ for (i = 0; i < mgr->num_overlays; i++) {
++ struct omap_overlay *ovl;
++ struct omap_overlay_info *pi;
++ ovl = mgr->overlays[i];
++
++ if (ovl->manager != mgr)
++ continue;
++
++ if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0)
++ continue;
++
++ pi = &ovl->info;
++
++ if (!pi->enabled)
++ continue;
++ /*
++ * If the plane is intersecting and scaled, we
++ * enlarge the update region to accomodate the
++ * whole area
++ */
++
++ if (dispc_is_intersecting(x, y, w, h,
++ pi->pos_x, pi->pos_y,
++ pi->out_width, pi->out_height)) {
++ if (dispc_is_overlay_scaled(pi)) {
++
++ int x1, y1, x2, y2;
++
++ if (x > pi->pos_x)
++ x1 = pi->pos_x;
++ else
++ x1 = x;
++
++ if (y > pi->pos_y)
++ y1 = pi->pos_y;
++ else
++ y1 = y;
++
++ if ((x + w) < (pi->pos_x + pi->out_width))
++ x2 = pi->pos_x + pi->out_width;
++ else
++ x2 = x + w;
++
++ if ((y + h) < (pi->pos_y + pi->out_height))
++ y2 = pi->pos_y + pi->out_height;
++ else
++ y2 = y + h;
++
++ x = x1;
++ y = y1;
++ w = x2 - x1;
++ h = y2 - y1;
++
++ DSSDBG("Update area after enlarge due to "
++ "scaling %d, %d %dx%d\n",
++ x, y, w, h);
++ }
++ }
++ }
++
++ for (i = 0; i < mgr->num_overlays; i++) {
++ struct omap_overlay *ovl = mgr->overlays[i];
++ struct omap_overlay_info *pi = &ovl->info;
++
++ int px = pi->pos_x;
++ int py = pi->pos_y;
++ int pw = pi->width;
++ int ph = pi->height;
++ int pow = pi->out_width;
++ int poh = pi->out_height;
++ u32 pa = pi->paddr;
++ int psw = pi->screen_width;
++ int bpp;
++
++ if (ovl->manager != mgr)
++ continue;
++
++ /*
++ * If plane is not enabled or the update region
++ * does not intersect with the plane in question,
++ * we really disable the plane from hardware
++ */
++
++ if (!pi->enabled ||
++ !dispc_is_intersecting(x, y, w, h,
++ px, py, pow, poh)) {
++ dispc_enable_plane(ovl->id, 0);
++ continue;
++ }
++
++ switch (pi->color_mode) {
++ case OMAP_DSS_COLOR_RGB16:
++ case OMAP_DSS_COLOR_ARGB16:
++ case OMAP_DSS_COLOR_YUV2:
++ case OMAP_DSS_COLOR_UYVY:
++ bpp = 16;
++ break;
++
++ case OMAP_DSS_COLOR_RGB24P:
++ bpp = 24;
++ break;
++
++ case OMAP_DSS_COLOR_RGB24U:
++ case OMAP_DSS_COLOR_ARGB32:
++ case OMAP_DSS_COLOR_RGBA32:
++ case OMAP_DSS_COLOR_RGBX32:
++ bpp = 32;
++ break;
++
++ default:
++ BUG();
++ return;
++ }
++
++ if (x > pi->pos_x) {
++ px = 0;
++ pw -= (x - pi->pos_x);
++ pa += (x - pi->pos_x) * bpp / 8;
++ } else {
++ px = pi->pos_x - x;
++ }
++
++ if (y > pi->pos_y) {
++ py = 0;
++ ph -= (y - pi->pos_y);
++ pa += (y - pi->pos_y) * psw * bpp / 8;
++ } else {
++ py = pi->pos_y - y;
++ }
++
++ if (w < (px+pw))
++ pw -= (px+pw) - (w);
++
++ if (h < (py+ph))
++ ph -= (py+ph) - (h);
++
++ /* Can't scale the GFX plane */
++ if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0 ||
++ dispc_is_overlay_scaled(pi) == 0) {
++ pow = pw;
++ poh = ph;
++ }
++
++ DSSDBG("calc plane %d, %x, sw %d, %d,%d, %dx%d -> %dx%d\n",
++ ovl->id, pa, psw, px, py, pw, ph, pow, poh);
++
++ dispc_setup_plane(ovl->id, mgr->id,
++ pa, psw,
++ px, py,
++ pw, ph,
++ pow, poh,
++ pi->color_mode, 0,
++ pi->rotation, // XXX rotation probably wrong
++ pi->mirror);
++
++ dispc_enable_plane(ovl->id, 1);
++ }
++
++ *xi = x;
++ *yi = y;
++ *wi = w;
++ *hi = h;
++
++}
++
+diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c
+new file mode 100644
+index 0000000..9aaf392
+--- /dev/null
++++ b/drivers/video/omap2/dss/display.c
+@@ -0,0 +1,693 @@
++/*
++ * linux/drivers/video/omap2/dss/display.c
++ *
++ * Copyright (C) 2009 Nokia Corporation
++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
++ *
++ * Some code and ideas taken from drivers/video/omap/ driver
++ * by Imre Deak.
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published by
++ * the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
++ * more details.
++ *
++ * You should have received a copy of the GNU General Public License along with
++ * this program. If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#define DSS_SUBSYS_NAME "DISPLAY"
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/jiffies.h>
++#include <linux/list.h>
++#include <linux/platform_device.h>
++
++#include <mach/display.h>
++#include "dss.h"
++
++static int num_displays;
++static LIST_HEAD(display_list);
++
++static ssize_t display_name_show(struct omap_display *display, char *buf)
++{
++ return snprintf(buf, PAGE_SIZE, "%s\n", display->name);
++}
++
++static ssize_t display_enabled_show(struct omap_display *display, char *buf)
++{
++ bool enabled = display->state != OMAP_DSS_DISPLAY_DISABLED;
++
++ return snprintf(buf, PAGE_SIZE, "%d\n", enabled);
++}
++
++static ssize_t display_enabled_store(struct omap_display *display,
++ const char *buf, size_t size)
++{
++ bool enabled, r;
++
++ enabled = simple_strtoul(buf, NULL, 10);
++
++ if (enabled != (display->state != OMAP_DSS_DISPLAY_DISABLED)) {
++ if (enabled) {
++ r = display->enable(display);
++ if (r)
++ return r;
++ } else {
++ display->disable(display);
++ }
++ }
++
++ return size;
++}
++
++static ssize_t display_upd_mode_show(struct omap_display *display, char *buf)
++{
++ enum omap_dss_update_mode mode = OMAP_DSS_UPDATE_AUTO;
++ if (display->get_update_mode)
++ mode = display->get_update_mode(display);
++ return snprintf(buf, PAGE_SIZE, "%d\n", mode);
++}
++
++static ssize_t display_upd_mode_store(struct omap_display *display,
++ const char *buf, size_t size)
++{
++ int val, r;
++ enum omap_dss_update_mode mode;
++
++ val = simple_strtoul(buf, NULL, 10);
++
++ switch (val) {
++ case OMAP_DSS_UPDATE_DISABLED:
++ case OMAP_DSS_UPDATE_AUTO:
++ case OMAP_DSS_UPDATE_MANUAL:
++ mode = (enum omap_dss_update_mode)val;
++ break;
++ default:
++ return -EINVAL;
++ }
++
++ if ((r = display->set_update_mode(display, mode)))
++ return r;
++
++ return size;
++}
++
++static ssize_t display_tear_show(struct omap_display *display, char *buf)
++{
++ return snprintf(buf, PAGE_SIZE, "%d\n",
++ display->get_te ? display->get_te(display) : 0);
++}
++
++static ssize_t display_tear_store(struct omap_display *display,
++ const char *buf, size_t size)
++{
++ unsigned long te;
++ int r;
++
++ if (!display->enable_te || !display->get_te)
++ return -ENOENT;
++
++ te = simple_strtoul(buf, NULL, 0);
++
++ if ((r = display->enable_te(display, te)))
++ return r;
++
++ return size;
++}
++
++static ssize_t display_timings_show(struct omap_display *display, char *buf)
++{
++ struct omap_video_timings t;
++
++ if (!display->get_timings)
++ return -ENOENT;
++
++ display->get_timings(display, &t);
++
++ return snprintf(buf, PAGE_SIZE, "%u,%u/%u/%u/%u,%u/%u/%u/%u\n",
++ t.pixel_clock,
++ t.x_res, t.hfp, t.hbp, t.hsw,
++ t.y_res, t.vfp, t.vbp, t.vsw);
++}
++
++static ssize_t display_timings_store(struct omap_display *display,
++ const char *buf, size_t size)
++{
++ struct omap_video_timings t;
++ int r, found;
++
++ if (!display->set_timings || !display->check_timings)
++ return -ENOENT;
++
++ found = 0;
++#ifdef CONFIG_OMAP2_DSS_VENC
++ if (strncmp("pal", buf, 3) == 0) {
++ t = omap_dss_pal_timings;
++ found = 1;
++ } else if (strncmp("ntsc", buf, 4) == 0) {
++ t = omap_dss_ntsc_timings;
++ found = 1;
++ }
++#endif
++ if (!found && sscanf(buf, "%u,%hu/%hu/%hu/%hu,%hu/%hu/%hu/%hu",
++ &t.pixel_clock,
++ &t.x_res, &t.hfp, &t.hbp, &t.hsw,
++ &t.y_res, &t.vfp, &t.vbp, &t.vsw) != 9)
++ return -EINVAL;
++
++ if ((r = display->check_timings(display, &t)))
++ return r;
++
++ display->set_timings(display, &t);
++
++ return size;
++}
++
++static ssize_t display_rotate_show(struct omap_display *display, char *buf)
++{
++ int rotate;
++ if (!display->get_rotate)
++ return -ENOENT;
++ rotate = display->get_rotate(display);
++ return snprintf(buf, PAGE_SIZE, "%u\n", rotate);
++}
++
++static ssize_t display_rotate_store(struct omap_display *display,
++ const char *buf, size_t size)
++{
++ unsigned long rot;
++ int r;
++
++ if (!display->set_rotate || !display->get_rotate)
++ return -ENOENT;
++
++ rot = simple_strtoul(buf, NULL, 0);
++
++ if ((r = display->set_rotate(display, rot)))
++ return r;
++
++ return size;
++}
++
++static ssize_t display_mirror_show(struct omap_display *display, char *buf)
++{
++ int mirror;
++ if (!display->get_mirror)
++ return -ENOENT;
++ mirror = display->get_mirror(display);
++ return snprintf(buf, PAGE_SIZE, "%u\n", mirror);
++}
++
++static ssize_t display_mirror_store(struct omap_display *display,
++ const char *buf, size_t size)
++{
++ unsigned long mirror;
++ int r;
++
++ if (!display->set_mirror || !display->get_mirror)
++ return -ENOENT;
++
++ mirror = simple_strtoul(buf, NULL, 0);
++
++ if ((r = display->set_mirror(display, mirror)))
++ return r;
++
++ return size;
++}
++
++static ssize_t display_panel_name_show(struct omap_display *display, char *buf)
++{
++ return snprintf(buf, PAGE_SIZE, "%s\n",
++ display->panel ? display->panel->name : "");
++}
++
++static ssize_t display_ctrl_name_show(struct omap_display *display, char *buf)
++{
++ return snprintf(buf, PAGE_SIZE, "%s\n",
++ display->ctrl ? display->ctrl->name : "");
++}
++
++struct display_attribute {
++ struct attribute attr;
++ ssize_t (*show)(struct omap_display *, char *);
++ ssize_t (*store)(struct omap_display *, const char *, size_t);
++};
++
++#define DISPLAY_ATTR(_name, _mode, _show, _store) \
++ struct display_attribute display_attr_##_name = \
++ __ATTR(_name, _mode, _show, _store)
++
++static DISPLAY_ATTR(name, S_IRUGO, display_name_show, NULL);
++static DISPLAY_ATTR(enabled, S_IRUGO|S_IWUSR,
++ display_enabled_show, display_enabled_store);
++static DISPLAY_ATTR(update_mode, S_IRUGO|S_IWUSR,
++ display_upd_mode_show, display_upd_mode_store);
++static DISPLAY_ATTR(tear_elim, S_IRUGO|S_IWUSR,
++ display_tear_show, display_tear_store);
++static DISPLAY_ATTR(timings, S_IRUGO|S_IWUSR,
++ display_timings_show, display_timings_store);
++static DISPLAY_ATTR(rotate, S_IRUGO|S_IWUSR,
++ display_rotate_show, display_rotate_store);
++static DISPLAY_ATTR(mirror, S_IRUGO|S_IWUSR,
++ display_mirror_show, display_mirror_store);
++static DISPLAY_ATTR(panel_name, S_IRUGO, display_panel_name_show, NULL);
++static DISPLAY_ATTR(ctrl_name, S_IRUGO, display_ctrl_name_show, NULL);
++
++static struct attribute *display_sysfs_attrs[] = {
++ &display_attr_name.attr,
++ &display_attr_enabled.attr,
++ &display_attr_update_mode.attr,
++ &display_attr_tear_elim.attr,
++ &display_attr_timings.attr,
++ &display_attr_rotate.attr,
++ &display_attr_mirror.attr,
++ &display_attr_panel_name.attr,
++ &display_attr_ctrl_name.attr,
++ NULL
++};
++
++static ssize_t display_attr_show(struct kobject *kobj, struct attribute *attr, char *buf)
++{
++ struct omap_display *display;
++ struct display_attribute *display_attr;
++
++ display = container_of(kobj, struct omap_display, kobj);
++ display_attr = container_of(attr, struct display_attribute, attr);
++
++ if (!display_attr->show)
++ return -ENOENT;
++
++ return display_attr->show(display, buf);
++}
++
++static ssize_t display_attr_store(struct kobject *kobj, struct attribute *attr,
++ const char *buf, size_t size)
++{
++ struct omap_display *display;
++ struct display_attribute *display_attr;
++
++ display = container_of(kobj, struct omap_display, kobj);
++ display_attr = container_of(attr, struct display_attribute, attr);
++
++ if (!display_attr->store)
++ return -ENOENT;
++
++ return display_attr->store(display, buf, size);
++}
++
++static struct sysfs_ops display_sysfs_ops = {
++ .show = display_attr_show,
++ .store = display_attr_store,
++};
++
++static struct kobj_type display_ktype = {
++ .sysfs_ops = &display_sysfs_ops,
++ .default_attrs = display_sysfs_attrs,
++};
++
++static void default_get_resolution(struct omap_display *display,
++ u16 *xres, u16 *yres)
++{
++ *xres = display->panel->timings.x_res;
++ *yres = display->panel->timings.y_res;
++}
++
++static void default_configure_overlay(struct omap_overlay *ovl)
++{
++ unsigned low, high, size;
++ enum omap_burst_size burst;
++ enum omap_plane plane = ovl->id;
++
++ burst = OMAP_DSS_BURST_16x32;
++ size = 16 * 32 / 8;
++
++ dispc_set_burst_size(plane, burst);
++
++ high = dispc_get_plane_fifo_size(plane) - 1;
++ low = dispc_get_plane_fifo_size(plane) - size;
++
++ dispc_setup_plane_fifo(plane, low, high);
++}
++
++static int default_wait_vsync(struct omap_display *display)
++{
++ unsigned long timeout = msecs_to_jiffies(500);
++ u32 irq;
++
++ if (display->type == OMAP_DISPLAY_TYPE_VENC)
++ irq = DISPC_IRQ_EVSYNC_ODD;
++ else
++ irq = DISPC_IRQ_VSYNC;
++
++ return omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
++}
++
++static int default_get_recommended_bpp(struct omap_display *display)
++{
++ if (display->panel->recommended_bpp)
++ return display->panel->recommended_bpp;
++
++ switch (display->type) {
++ case OMAP_DISPLAY_TYPE_DPI:
++ if (display->hw_config.u.dpi.data_lines == 24)
++ return 24;
++ else
++ return 16;
++
++ case OMAP_DISPLAY_TYPE_DBI:
++ case OMAP_DISPLAY_TYPE_DSI:
++ if (display->ctrl->pixel_size == 24)
++ return 24;
++ else
++ return 16;
++ case OMAP_DISPLAY_TYPE_VENC:
++ case OMAP_DISPLAY_TYPE_SDI:
++ return 24;
++ return 24;
++ default:
++ BUG();
++ }
++}
++
++void dss_init_displays(struct platform_device *pdev)
++{
++ struct omap_dss_board_info *pdata = pdev->dev.platform_data;
++ int i, r;
++
++ INIT_LIST_HEAD(&display_list);
++
++ num_displays = 0;
++
++ for (i = 0; i < pdata->num_displays; ++i) {
++ struct omap_display *display;
++
++ switch (pdata->displays[i]->type) {
++ case OMAP_DISPLAY_TYPE_DPI:
++#ifdef CONFIG_OMAP2_DSS_RFBI
++ case OMAP_DISPLAY_TYPE_DBI:
++#endif
++#ifdef CONFIG_OMAP2_DSS_SDI
++ case OMAP_DISPLAY_TYPE_SDI:
++#endif
++#ifdef CONFIG_OMAP2_DSS_DSI
++ case OMAP_DISPLAY_TYPE_DSI:
++#endif
++#ifdef CONFIG_OMAP2_DSS_VENC
++ case OMAP_DISPLAY_TYPE_VENC:
++#endif
++ break;
++ default:
++ DSSERR("Support for display '%s' not compiled in.\n",
++ pdata->displays[i]->name);
++ continue;
++ }
++
++ display = kzalloc(sizeof(*display), GFP_KERNEL);
++
++ /*atomic_set(&display->ref_count, 0);*/
++ display->ref_count = 0;
++
++ display->hw_config = *pdata->displays[i];
++ display->type = pdata->displays[i]->type;
++ display->name = pdata->displays[i]->name;
++
++ display->get_resolution = default_get_resolution;
++ display->get_recommended_bpp = default_get_recommended_bpp;
++ display->configure_overlay = default_configure_overlay;
++ display->wait_vsync = default_wait_vsync;
++
++ switch (display->type) {
++ case OMAP_DISPLAY_TYPE_DPI:
++ dpi_init_display(display);
++ break;
++#ifdef CONFIG_OMAP2_DSS_RFBI
++ case OMAP_DISPLAY_TYPE_DBI:
++ rfbi_init_display(display);
++ break;
++#endif
++#ifdef CONFIG_OMAP2_DSS_VENC
++ case OMAP_DISPLAY_TYPE_VENC:
++ venc_init_display(display);
++ break;
++#endif
++#ifdef CONFIG_OMAP2_DSS_SDI
++ case OMAP_DISPLAY_TYPE_SDI:
++ sdi_init_display(display);
++ break;
++#endif
++#ifdef CONFIG_OMAP2_DSS_DSI
++ case OMAP_DISPLAY_TYPE_DSI:
++ dsi_init_display(display);
++ break;
++#endif
++ default:
++ BUG();
++ }
++
++ r = kobject_init_and_add(&display->kobj, &display_ktype,
++ &pdev->dev.kobj, "display%d", num_displays);
++
++ if (r) {
++ DSSERR("failed to create sysfs file\n");
++ continue;
++ }
++
++ num_displays++;
++
++ list_add_tail(&display->list, &display_list);
++ }
++}
++
++void dss_uninit_displays(struct platform_device *pdev)
++{
++ struct omap_display *display;
++
++ while (!list_empty(&display_list)) {
++ display = list_first_entry(&display_list,
++ struct omap_display, list);
++ list_del(&display->list);
++ kobject_del(&display->kobj);
++ kobject_put(&display->kobj);
++ kfree(display);
++ }
++
++ num_displays = 0;
++}
++
++int dss_suspend_all_displays(void)
++{
++ int r;
++ struct omap_display *display;
++
++ list_for_each_entry(display, &display_list, list) {
++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE) {
++ display->activate_after_resume = 0;
++ continue;
++ }
++
++ if (!display->suspend) {
++ DSSERR("display '%s' doesn't implement suspend\n",
++ display->name);
++ r = -ENOSYS;
++ goto err;
++ }
++
++ r = display->suspend(display);
++
++ if (r)
++ goto err;
++
++ display->activate_after_resume = 1;
++ }
++
++ return 0;
++err:
++ /* resume all displays that were suspended */
++ dss_resume_all_displays();
++ return r;
++}
++
++int dss_resume_all_displays(void)
++{
++ int r;
++ struct omap_display *display;
++
++ list_for_each_entry(display, &display_list, list) {
++ if (display->activate_after_resume && display->resume) {
++ r = display->resume(display);
++ if (r)
++ return r;
++ }
++
++ display->activate_after_resume = 0;
++ }
++
++ return 0;
++}
++
++int omap_dss_get_num_displays(void)
++{
++ return num_displays;
++}
++EXPORT_SYMBOL(omap_dss_get_num_displays);
++
++struct omap_display *dss_get_display(int no)
++{
++ int i = 0;
++ struct omap_display *display;
++
++ list_for_each_entry(display, &display_list, list) {
++ if (i++ == no)
++ return display;
++ }
++
++ return NULL;
++}
++
++struct omap_display *omap_dss_get_display(int no)
++{
++ struct omap_display *display;
++
++ display = dss_get_display(no);
++
++ if (!display)
++ return NULL;
++
++ switch (display->type) {
++ case OMAP_DISPLAY_TYPE_VENC:
++ break;
++
++ case OMAP_DISPLAY_TYPE_DPI:
++ case OMAP_DISPLAY_TYPE_SDI:
++ if (display->panel == NULL)
++ return NULL;
++ break;
++
++ case OMAP_DISPLAY_TYPE_DBI:
++ case OMAP_DISPLAY_TYPE_DSI:
++ if (display->panel == NULL || display->ctrl == NULL)
++ return NULL;
++ break;
++
++ default:
++ return NULL;
++ }
++
++ if (display->ctrl) {
++ if (!try_module_get(display->ctrl->owner))
++ goto err0;
++
++ if (display->ctrl->init)
++ if (display->ctrl->init(display) != 0)
++ goto err1;
++ }
++
++ if (display->panel) {
++ if (!try_module_get(display->panel->owner))
++ goto err2;
++
++ if (display->panel->init)
++ if (display->panel->init(display) != 0)
++ goto err3;
++ }
++
++ display->ref_count++;
++ /*
++ if (atomic_cmpxchg(&display->ref_count, 0, 1) != 0)
++ return 0;
++*/
++
++ return display;
++err3:
++ if (display->panel)
++ module_put(display->panel->owner);
++err2:
++ if (display->ctrl && display->ctrl->cleanup)
++ display->ctrl->cleanup(display);
++err1:
++ if (display->ctrl)
++ module_put(display->ctrl->owner);
++err0:
++ return NULL;
++}
++EXPORT_SYMBOL(omap_dss_get_display);
++
++void omap_dss_put_display(struct omap_display *display)
++{
++ if (--display->ref_count > 0)
++ return;
++/*
++ if (atomic_cmpxchg(&display->ref_count, 1, 0) != 1)
++ return;
++*/
++ if (display->ctrl) {
++ if (display->ctrl->cleanup)
++ display->ctrl->cleanup(display);
++ module_put(display->ctrl->owner);
++ }
++
++ if (display->panel) {
++ if (display->panel->cleanup)
++ display->panel->cleanup(display);
++ module_put(display->panel->owner);
++ }
++}
++EXPORT_SYMBOL(omap_dss_put_display);
++
++void omap_dss_register_ctrl(struct omap_ctrl *ctrl)
++{
++ struct omap_display *display;
++
++ list_for_each_entry(display, &display_list, list) {
++ if (display->hw_config.ctrl_name &&
++ strcmp(display->hw_config.ctrl_name, ctrl->name) == 0) {
++ display->ctrl = ctrl;
++ DSSDBG("ctrl '%s' registered\n", ctrl->name);
++ }
++ }
++}
++EXPORT_SYMBOL(omap_dss_register_ctrl);
++
++void omap_dss_register_panel(struct omap_panel *panel)
++{
++ struct omap_display *display;
++
++ list_for_each_entry(display, &display_list, list) {
++ if (display->hw_config.panel_name &&
++ strcmp(display->hw_config.panel_name, panel->name) == 0) {
++ display->panel = panel;
++ DSSDBG("panel '%s' registered\n", panel->name);
++ }
++ }
++}
++EXPORT_SYMBOL(omap_dss_register_panel);
++
++void omap_dss_unregister_ctrl(struct omap_ctrl *ctrl)
++{
++ struct omap_display *display;
++
++ list_for_each_entry(display, &display_list, list) {
++ if (display->hw_config.ctrl_name &&
++ strcmp(display->hw_config.ctrl_name, ctrl->name) == 0)
++ display->ctrl = NULL;
++ }
++}
++EXPORT_SYMBOL(omap_dss_unregister_ctrl);
++
++void omap_dss_unregister_panel(struct omap_panel *panel)
++{
++ struct omap_display *display;
++
++ list_for_each_entry(display, &display_list, list) {
++ if (display->hw_config.panel_name &&
++ strcmp(display->hw_config.panel_name, panel->name) == 0)
++ display->panel = NULL;
++ }
++}
++EXPORT_SYMBOL(omap_dss_unregister_panel);
+diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
+new file mode 100644
+index 0000000..71fffca
+--- /dev/null
++++ b/drivers/video/omap2/dss/dpi.c
+@@ -0,0 +1,393 @@
++/*
++ * linux/drivers/video/omap2/dss/dpi.c
++ *
++ * Copyright (C) 2009 Nokia Corporation
++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
++ *
++ * Some code and ideas taken from drivers/video/omap/ driver
++ * by Imre Deak.
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published by
++ * the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
++ * more details.
++ *
++ * You should have received a copy of the GNU General Public License along with
++ * this program. If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#include <linux/kernel.h>
++#include <linux/clk.h>
++#include <linux/delay.h>
++#include <linux/errno.h>
++
++#include <mach/board.h>
++#include <mach/display.h>
++#include <mach/cpu.h>
++
++#include "dss.h"
++
++static struct {
++ int update_enabled;
++} dpi;
++
++#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
++static int dpi_set_dsi_clk(bool is_tft, unsigned long pck_req,
++ unsigned long *fck, int *lck_div, int *pck_div)
++{
++ struct dsi_clock_info cinfo;
++ int r;
++
++ r = dsi_pll_calc_pck(is_tft, pck_req, &cinfo);
++ if (r)
++ return r;
++
++ r = dsi_pll_program(&cinfo);
++ if (r)
++ return r;
++
++ dss_select_clk_source(0, 1);
++
++ dispc_set_lcd_divisor(cinfo.lck_div, cinfo.pck_div);
++
++ *fck = cinfo.dsi1_pll_fclk;
++ *lck_div = cinfo.lck_div;
++ *pck_div = cinfo.pck_div;
++
++ return 0;
++}
++#else
++static int dpi_set_dispc_clk(bool is_tft, unsigned long pck_req,
++ unsigned long *fck, int *lck_div, int *pck_div)
++{
++ struct dispc_clock_info cinfo;
++ int r;
++
++ r = dispc_calc_clock_div(is_tft, pck_req, &cinfo);
++ if (r)
++ return r;
++
++ r = dispc_set_clock_div(&cinfo);
++ if (r)
++ return r;
++
++ *fck = cinfo.fck;
++ *lck_div = cinfo.lck_div;
++ *pck_div = cinfo.pck_div;
++
++ return 0;
++}
++#endif
++
++static int dpi_set_mode(struct omap_display *display)
++{
++ struct omap_panel *panel = display->panel;
++ int lck_div, pck_div;
++ unsigned long fck;
++ unsigned long pck;
++ bool is_tft;
++ int r = 0;
++
++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ dispc_set_pol_freq(panel);
++
++ is_tft = (display->panel->config & OMAP_DSS_LCD_TFT) != 0;
++
++#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
++ r = dpi_set_dsi_clk(is_tft, panel->timings.pixel_clock * 1000,
++ &fck, &lck_div, &pck_div);
++#else
++ r = dpi_set_dispc_clk(is_tft, panel->timings.pixel_clock * 1000,
++ &fck, &lck_div, &pck_div);
++#endif
++ if (r)
++ goto err0;
++
++ pck = fck / lck_div / pck_div / 1000;
++
++ if (pck != panel->timings.pixel_clock) {
++ DSSWARN("Could not find exact pixel clock. "
++ "Requested %d kHz, got %lu kHz\n",
++ panel->timings.pixel_clock, pck);
++
++ panel->timings.pixel_clock = pck;
++ }
++
++ dispc_set_lcd_timings(&panel->timings);
++
++err0:
++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
++ return r;
++}
++
++static int dpi_basic_init(struct omap_display *display)
++{
++ bool is_tft;
++
++ is_tft = (display->panel->config & OMAP_DSS_LCD_TFT) != 0;
++
++ dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_BYPASS);
++ dispc_set_lcd_display_type(is_tft ? OMAP_DSS_LCD_DISPLAY_TFT :
++ OMAP_DSS_LCD_DISPLAY_STN);
++ dispc_set_tft_data_lines(display->hw_config.u.dpi.data_lines);
++
++ return 0;
++}
++
++static int dpi_display_enable(struct omap_display *display)
++{
++ struct omap_panel *panel = display->panel;
++ int r;
++
++ if (display->state != OMAP_DSS_DISPLAY_DISABLED) {
++ DSSERR("display already enabled\n");
++ return -EINVAL;
++ }
++
++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ r = dpi_basic_init(display);
++ if (r)
++ goto err0;
++
++#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
++ dss_clk_enable(DSS_CLK_FCK2);
++ r = dsi_pll_init(0, 1);
++ if (r)
++ goto err1;
++#endif
++ r = dpi_set_mode(display);
++ if (r)
++ goto err2;
++
++ mdelay(2);
++
++ dispc_enable_lcd_out(1);
++
++ r = panel->enable(display);
++ if (r)
++ goto err3;
++
++ display->state = OMAP_DSS_DISPLAY_ACTIVE;
++
++ return 0;
++
++err3:
++ dispc_enable_lcd_out(0);
++err2:
++#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
++ dsi_pll_uninit();
++err1:
++ dss_clk_disable(DSS_CLK_FCK2);
++#endif
++err0:
++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
++ return r;
++}
++
++static int dpi_display_resume(struct omap_display *display);
++
++static void dpi_display_disable(struct omap_display *display)
++{
++ if (display->state == OMAP_DSS_DISPLAY_DISABLED)
++ return;
++
++ if (display->state == OMAP_DSS_DISPLAY_SUSPENDED)
++ dpi_display_resume(display);
++
++ display->panel->disable(display);
++
++ dispc_enable_lcd_out(0);
++
++#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
++ dss_select_clk_source(0, 0);
++ dsi_pll_uninit();
++ dss_clk_disable(DSS_CLK_FCK2);
++#endif
++
++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ display->state = OMAP_DSS_DISPLAY_DISABLED;
++}
++
++static int dpi_display_suspend(struct omap_display *display)
++{
++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE)
++ return -EINVAL;
++
++ DSSDBG("dpi_display_suspend\n");
++
++ if (display->panel->suspend)
++ display->panel->suspend(display);
++
++ dispc_enable_lcd_out(0);
++
++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ display->state = OMAP_DSS_DISPLAY_SUSPENDED;
++
++ return 0;
++}
++
++static int dpi_display_resume(struct omap_display *display)
++{
++ if (display->state != OMAP_DSS_DISPLAY_SUSPENDED)
++ return -EINVAL;
++
++ DSSDBG("dpi_display_resume\n");
++
++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ dispc_enable_lcd_out(1);
++
++ if (display->panel->resume)
++ display->panel->resume(display);
++
++ display->state = OMAP_DSS_DISPLAY_ACTIVE;
++
++ return 0;
++}
++
++static void dpi_set_timings(struct omap_display *display,
++ struct omap_video_timings *timings)
++{
++ DSSDBG("dpi_set_timings\n");
++ display->panel->timings = *timings;
++ if (display->state == OMAP_DSS_DISPLAY_ACTIVE) {
++ dpi_set_mode(display);
++ dispc_go(OMAP_DSS_CHANNEL_LCD);
++ }
++}
++
++static int dpi_check_timings(struct omap_display *display,
++ struct omap_video_timings *timings)
++{
++ bool is_tft;
++ int r;
++ int lck_div, pck_div;
++ unsigned long fck;
++ unsigned long pck;
++
++ if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) {
++ if (timings->hsw < 1 || timings->hsw > 64 ||
++ timings->hfp < 1 || timings->hfp > 256 ||
++ timings->hbp < 1 || timings->hbp > 256) {
++ return -EINVAL;
++ }
++
++ if (timings->vsw < 1 || timings->vsw > 64 ||
++ timings->vfp > 255 || timings->vbp > 255) {
++ return -EINVAL;
++ }
++ } else {
++ if (timings->hsw < 1 || timings->hsw > 256 ||
++ timings->hfp < 1 || timings->hfp > 4096 ||
++ timings->hbp < 1 || timings->hbp > 4096) {
++ return -EINVAL;
++ }
++
++ if (timings->vsw < 1 || timings->vsw > 64 ||
++ timings->vfp > 4095 || timings->vbp > 4095) {
++ return -EINVAL;
++ }
++ }
++
++ if (timings->pixel_clock == 0)
++ return -EINVAL;
++
++ is_tft = (display->panel->config & OMAP_DSS_LCD_TFT) != 0;
++
++#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
++ {
++ struct dsi_clock_info cinfo;
++ r = dsi_pll_calc_pck(is_tft, timings->pixel_clock * 1000,
++ &cinfo);
++
++ if (r)
++ return r;
++
++ fck = cinfo.dsi1_pll_fclk;
++ lck_div = cinfo.lck_div;
++ pck_div = cinfo.pck_div;
++ }
++#else
++ {
++ struct dispc_clock_info cinfo;
++ r = dispc_calc_clock_div(is_tft, timings->pixel_clock * 1000,
++ &cinfo);
++
++ if (r)
++ return r;
++
++ fck = cinfo.fck;
++ lck_div = cinfo.lck_div;
++ pck_div = cinfo.pck_div;
++ }
++#endif
++
++ pck = fck / lck_div / pck_div / 1000;
++
++ timings->pixel_clock = pck;
++
++ return 0;
++}
++
++static void dpi_get_timings(struct omap_display *display,
++ struct omap_video_timings *timings)
++{
++ *timings = display->panel->timings;
++}
++
++static int dpi_display_set_update_mode(struct omap_display *display,
++ enum omap_dss_update_mode mode)
++{
++ if (mode == OMAP_DSS_UPDATE_MANUAL)
++ return -EINVAL;
++
++ if (mode == OMAP_DSS_UPDATE_DISABLED) {
++ dispc_enable_lcd_out(0);
++ dpi.update_enabled = 0;
++ } else {
++ dispc_enable_lcd_out(1);
++ dpi.update_enabled = 1;
++ }
++
++ return 0;
++}
++
++static enum omap_dss_update_mode dpi_display_get_update_mode(
++ struct omap_display *display)
++{
++ return dpi.update_enabled ? OMAP_DSS_UPDATE_AUTO :
++ OMAP_DSS_UPDATE_DISABLED;
++}
++
++void dpi_init_display(struct omap_display *display)
++{
++ DSSDBG("DPI init_display\n");
++
++ display->enable = dpi_display_enable;
++ display->disable = dpi_display_disable;
++ display->suspend = dpi_display_suspend;
++ display->resume = dpi_display_resume;
++ display->set_timings = dpi_set_timings;
++ display->check_timings = dpi_check_timings;
++ display->get_timings = dpi_get_timings;
++ display->set_update_mode = dpi_display_set_update_mode;
++ display->get_update_mode = dpi_display_get_update_mode;
++}
++
++int dpi_init(void)
++{
++ return 0;
++}
++
++void dpi_exit(void)
++{
++}
++
+diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
+new file mode 100644
+index 0000000..4442931
+--- /dev/null
++++ b/drivers/video/omap2/dss/dsi.c
+@@ -0,0 +1,3752 @@
++/*
++ * linux/drivers/video/omap2/dss/dsi.c
++ *
++ * Copyright (C) 2009 Nokia Corporation
++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published by
++ * the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
++ * more details.
++ *
++ * You should have received a copy of the GNU General Public License along with
++ * this program. If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#define DSS_SUBSYS_NAME "DSI"
++
++#include <linux/kernel.h>
++#include <linux/io.h>
++#include <linux/clk.h>
++#include <linux/device.h>
++#include <linux/err.h>
++#include <linux/interrupt.h>
++#include <linux/delay.h>
++#include <linux/workqueue.h>
++#include <linux/mutex.h>
++#include <linux/seq_file.h>
++#include <linux/kfifo.h>
++
++#include <mach/board.h>
++#include <mach/display.h>
++#include <mach/clock.h>
++
++#include "dss.h"
++
++/*#define VERBOSE_IRQ*/
++
++#define DSI_BASE 0x4804FC00
++
++struct dsi_reg { u16 idx; };
++
++#define DSI_REG(idx) ((const struct dsi_reg) { idx })
++
++#define DSI_SZ_REGS SZ_1K
++/* DSI Protocol Engine */
++
++#define DSI_REVISION DSI_REG(0x0000)
++#define DSI_SYSCONFIG DSI_REG(0x0010)
++#define DSI_SYSSTATUS DSI_REG(0x0014)
++#define DSI_IRQSTATUS DSI_REG(0x0018)
++#define DSI_IRQENABLE DSI_REG(0x001C)
++#define DSI_CTRL DSI_REG(0x0040)
++#define DSI_COMPLEXIO_CFG1 DSI_REG(0x0048)
++#define DSI_COMPLEXIO_IRQ_STATUS DSI_REG(0x004C)
++#define DSI_COMPLEXIO_IRQ_ENABLE DSI_REG(0x0050)
++#define DSI_CLK_CTRL DSI_REG(0x0054)
++#define DSI_TIMING1 DSI_REG(0x0058)
++#define DSI_TIMING2 DSI_REG(0x005C)
++#define DSI_VM_TIMING1 DSI_REG(0x0060)
++#define DSI_VM_TIMING2 DSI_REG(0x0064)
++#define DSI_VM_TIMING3 DSI_REG(0x0068)
++#define DSI_CLK_TIMING DSI_REG(0x006C)
++#define DSI_TX_FIFO_VC_SIZE DSI_REG(0x0070)
++#define DSI_RX_FIFO_VC_SIZE DSI_REG(0x0074)
++#define DSI_COMPLEXIO_CFG2 DSI_REG(0x0078)
++#define DSI_RX_FIFO_VC_FULLNESS DSI_REG(0x007C)
++#define DSI_VM_TIMING4 DSI_REG(0x0080)
++#define DSI_TX_FIFO_VC_EMPTINESS DSI_REG(0x0084)
++#define DSI_VM_TIMING5 DSI_REG(0x0088)
++#define DSI_VM_TIMING6 DSI_REG(0x008C)
++#define DSI_VM_TIMING7 DSI_REG(0x0090)
++#define DSI_STOPCLK_TIMING DSI_REG(0x0094)
++#define DSI_VC_CTRL(n) DSI_REG(0x0100 + (n * 0x20))
++#define DSI_VC_TE(n) DSI_REG(0x0104 + (n * 0x20))
++#define DSI_VC_LONG_PACKET_HEADER(n) DSI_REG(0x0108 + (n * 0x20))
++#define DSI_VC_LONG_PACKET_PAYLOAD(n) DSI_REG(0x010C + (n * 0x20))
++#define DSI_VC_SHORT_PACKET_HEADER(n) DSI_REG(0x0110 + (n * 0x20))
++#define DSI_VC_IRQSTATUS(n) DSI_REG(0x0118 + (n * 0x20))
++#define DSI_VC_IRQENABLE(n) DSI_REG(0x011C + (n * 0x20))
++
++/* DSIPHY_SCP */
++
++#define DSI_DSIPHY_CFG0 DSI_REG(0x200 + 0x0000)
++#define DSI_DSIPHY_CFG1 DSI_REG(0x200 + 0x0004)
++#define DSI_DSIPHY_CFG2 DSI_REG(0x200 + 0x0008)
++#define DSI_DSIPHY_CFG5 DSI_REG(0x200 + 0x0014)
++
++/* DSI_PLL_CTRL_SCP */
++
++#define DSI_PLL_CONTROL DSI_REG(0x300 + 0x0000)
++#define DSI_PLL_STATUS DSI_REG(0x300 + 0x0004)
++#define DSI_PLL_GO DSI_REG(0x300 + 0x0008)
++#define DSI_PLL_CONFIGURATION1 DSI_REG(0x300 + 0x000C)
++#define DSI_PLL_CONFIGURATION2 DSI_REG(0x300 + 0x0010)
++
++#define REG_GET(idx, start, end) \
++ FLD_GET(dsi_read_reg(idx), start, end)
++
++#define REG_FLD_MOD(idx, val, start, end) \
++ dsi_write_reg(idx, FLD_MOD(dsi_read_reg(idx), val, start, end))
++
++/* Global interrupts */
++#define DSI_IRQ_VC0 (1 << 0)
++#define DSI_IRQ_VC1 (1 << 1)
++#define DSI_IRQ_VC2 (1 << 2)
++#define DSI_IRQ_VC3 (1 << 3)
++#define DSI_IRQ_WAKEUP (1 << 4)
++#define DSI_IRQ_RESYNC (1 << 5)
++#define DSI_IRQ_PLL_LOCK (1 << 7)
++#define DSI_IRQ_PLL_UNLOCK (1 << 8)
++#define DSI_IRQ_PLL_RECALL (1 << 9)
++#define DSI_IRQ_COMPLEXIO_ERR (1 << 10)
++#define DSI_IRQ_HS_TX_TIMEOUT (1 << 14)
++#define DSI_IRQ_LP_RX_TIMEOUT (1 << 15)
++#define DSI_IRQ_TE_TRIGGER (1 << 16)
++#define DSI_IRQ_ACK_TRIGGER (1 << 17)
++#define DSI_IRQ_SYNC_LOST (1 << 18)
++#define DSI_IRQ_LDO_POWER_GOOD (1 << 19)
++#define DSI_IRQ_TA_TIMEOUT (1 << 20)
++#define DSI_IRQ_ERROR_MASK \
++ (DSI_IRQ_HS_TX_TIMEOUT | DSI_IRQ_LP_RX_TIMEOUT | DSI_IRQ_SYNC_LOST | \
++ DSI_IRQ_TA_TIMEOUT)
++#define DSI_IRQ_CHANNEL_MASK 0xf
++
++/* Virtual channel interrupts */
++#define DSI_VC_IRQ_CS (1 << 0)
++#define DSI_VC_IRQ_ECC_CORR (1 << 1)
++#define DSI_VC_IRQ_PACKET_SENT (1 << 2)
++#define DSI_VC_IRQ_FIFO_TX_OVF (1 << 3)
++#define DSI_VC_IRQ_FIFO_RX_OVF (1 << 4)
++#define DSI_VC_IRQ_BTA (1 << 5)
++#define DSI_VC_IRQ_ECC_NO_CORR (1 << 6)
++#define DSI_VC_IRQ_FIFO_TX_UDF (1 << 7)
++#define DSI_VC_IRQ_PP_BUSY_CHANGE (1 << 8)
++#define DSI_VC_IRQ_ERROR_MASK \
++ (DSI_VC_IRQ_CS | DSI_VC_IRQ_ECC_CORR | DSI_VC_IRQ_FIFO_TX_OVF | \
++ DSI_VC_IRQ_FIFO_RX_OVF | DSI_VC_IRQ_ECC_NO_CORR | \
++ DSI_VC_IRQ_FIFO_TX_UDF)
++
++/* ComplexIO interrupts */
++#define DSI_CIO_IRQ_ERRSYNCESC1 (1 << 0)
++#define DSI_CIO_IRQ_ERRSYNCESC2 (1 << 1)
++#define DSI_CIO_IRQ_ERRSYNCESC3 (1 << 2)
++#define DSI_CIO_IRQ_ERRESC1 (1 << 5)
++#define DSI_CIO_IRQ_ERRESC2 (1 << 6)
++#define DSI_CIO_IRQ_ERRESC3 (1 << 7)
++#define DSI_CIO_IRQ_ERRCONTROL1 (1 << 10)
++#define DSI_CIO_IRQ_ERRCONTROL2 (1 << 11)
++#define DSI_CIO_IRQ_ERRCONTROL3 (1 << 12)
++#define DSI_CIO_IRQ_STATEULPS1 (1 << 15)
++#define DSI_CIO_IRQ_STATEULPS2 (1 << 16)
++#define DSI_CIO_IRQ_STATEULPS3 (1 << 17)
++#define DSI_CIO_IRQ_ERRCONTENTIONLP0_1 (1 << 20)
++#define DSI_CIO_IRQ_ERRCONTENTIONLP1_1 (1 << 21)
++#define DSI_CIO_IRQ_ERRCONTENTIONLP0_2 (1 << 22)
++#define DSI_CIO_IRQ_ERRCONTENTIONLP1_2 (1 << 23)
++#define DSI_CIO_IRQ_ERRCONTENTIONLP0_3 (1 << 24)
++#define DSI_CIO_IRQ_ERRCONTENTIONLP1_3 (1 << 25)
++#define DSI_CIO_IRQ_ULPSACTIVENOT_ALL0 (1 << 30)
++#define DSI_CIO_IRQ_ULPSACTIVENOT_ALL1 (1 << 31)
++
++#define DSI_DT_DCS_SHORT_WRITE_0 0x05
++#define DSI_DT_DCS_SHORT_WRITE_1 0x15
++#define DSI_DT_DCS_READ 0x06
++#define DSI_DT_SET_MAX_RET_PKG_SIZE 0x37
++#define DSI_DT_NULL_PACKET 0x09
++#define DSI_DT_DCS_LONG_WRITE 0x39
++
++#define DSI_DT_RX_ACK_WITH_ERR 0x02
++#define DSI_DT_RX_DCS_LONG_READ 0x1c
++#define DSI_DT_RX_SHORT_READ_1 0x21
++#define DSI_DT_RX_SHORT_READ_2 0x22
++
++#define FINT_MAX 2100000
++#define FINT_MIN 750000
++#define REGN_MAX (1 << 7)
++#define REGM_MAX ((1 << 11) - 1)
++#define REGM3_MAX (1 << 4)
++#define REGM4_MAX (1 << 4)
++
++enum fifo_size {
++ DSI_FIFO_SIZE_0 = 0,
++ DSI_FIFO_SIZE_32 = 1,
++ DSI_FIFO_SIZE_64 = 2,
++ DSI_FIFO_SIZE_96 = 3,
++ DSI_FIFO_SIZE_128 = 4,
++};
++
++#define DSI_CMD_FIFO_LEN 16
++
++struct dsi_cmd_update {
++ int bytespp;
++ u16 x;
++ u16 y;
++ u16 w;
++ u16 h;
++};
++
++struct dsi_cmd_mem_read {
++ void *buf;
++ size_t size;
++ u16 x;
++ u16 y;
++ u16 w;
++ u16 h;
++ size_t *ret_size;
++ struct completion *completion;
++};
++
++struct dsi_cmd_test {
++ int test_num;
++ int *result;
++ struct completion *completion;
++};
++
++enum dsi_cmd {
++ DSI_CMD_UPDATE,
++ DSI_CMD_AUTOUPDATE,
++ DSI_CMD_SYNC,
++ DSI_CMD_MEM_READ,
++ DSI_CMD_TEST,
++ DSI_CMD_SET_TE,
++ DSI_CMD_SET_UPDATE_MODE,
++ DSI_CMD_SET_ROTATE,
++ DSI_CMD_SET_MIRROR,
++};
++
++struct dsi_cmd_item {
++ struct omap_display *display;
++
++ enum dsi_cmd cmd;
++
++ union {
++ struct dsi_cmd_update r;
++ struct completion *sync;
++ struct dsi_cmd_mem_read mem_read;
++ struct dsi_cmd_test test;
++ int te;
++ enum omap_dss_update_mode update_mode;
++ int rotate;
++ int mirror;
++ } u;
++};
++
++static struct
++{
++ void __iomem *base;
++
++ unsigned long dsi1_pll_fclk; /* Hz */
++ unsigned long dsi2_pll_fclk; /* Hz */
++ unsigned long dsiphy; /* Hz */
++ unsigned long ddr_clk; /* Hz */
++
++ struct {
++ struct omap_display *display;
++ enum fifo_size fifo_size;
++ int dest_per; /* destination peripheral 0-3 */
++ } vc[4];
++
++ struct mutex lock;
++
++ unsigned pll_locked;
++
++ struct completion bta_completion;
++
++ struct work_struct framedone_work;
++ struct work_struct process_work;
++ struct workqueue_struct *workqueue;
++
++ enum omap_dss_update_mode user_update_mode;
++ enum omap_dss_update_mode target_update_mode;
++ enum omap_dss_update_mode update_mode;
++ int use_te;
++ int framedone_scheduled; /* helps to catch strange framedone bugs */
++
++ unsigned long cache_req_pck;
++ unsigned long cache_clk_freq;
++ struct dsi_clock_info cache_cinfo;
++
++ struct kfifo *cmd_fifo;
++ spinlock_t cmd_lock;
++ struct completion cmd_done;
++ atomic_t cmd_fifo_full;
++ atomic_t cmd_pending;
++
++ bool autoupdate_setup;
++
++#ifdef DEBUG
++ ktime_t perf_setup_time;
++ ktime_t perf_start_time;
++ int perf_measure_frames;
++
++ struct {
++ int x, y, w, h;
++ int bytespp;
++ } update_region;
++
++#endif
++ int debug_process;
++ int debug_read;
++ int debug_write;
++} dsi;
++
++#ifdef DEBUG
++static unsigned int dsi_perf;
++module_param_named(dsi_perf, dsi_perf, bool, 0644);
++#endif
++
++static void dsi_process_cmd_fifo(struct work_struct *work);
++static void dsi_push_update(struct omap_display *display,
++ int x, int y, int w, int h);
++static void dsi_push_autoupdate(struct omap_display *display);
++
++static inline void dsi_write_reg(const struct dsi_reg idx, u32 val)
++{
++ __raw_writel(val, dsi.base + idx.idx);
++}
++
++static inline u32 dsi_read_reg(const struct dsi_reg idx)
++{
++ return __raw_readl(dsi.base + idx.idx);
++}
++
++
++void dsi_save_context(void)
++{
++}
++
++void dsi_restore_context(void)
++{
++}
++
++static inline int wait_for_bit_change(const struct dsi_reg idx, int bitnum,
++ int value)
++{
++ int t = 100000;
++
++ while (REG_GET(idx, bitnum, bitnum) != value) {
++ if (--t == 0)
++ return !value;
++ }
++
++ return value;
++}
++
++#ifdef DEBUG
++static void perf_mark_setup(void)
++{
++ dsi.perf_setup_time = ktime_get();
++}
++
++static void perf_mark_start(void)
++{
++ dsi.perf_start_time = ktime_get();
++}
++
++static void perf_show(const char *name)
++{
++ ktime_t t, setup_time, trans_time;
++ u32 total_bytes;
++ u32 setup_us, trans_us, total_us;
++ const int numframes = 100;
++ static u32 s_trans_us, s_min_us = 0xffffffff, s_max_us;
++
++ if (!dsi_perf)
++ return;
++
++ if (dsi.update_mode == OMAP_DSS_UPDATE_DISABLED)
++ return;
++
++ t = ktime_get();
++
++ setup_time = ktime_sub(dsi.perf_start_time, dsi.perf_setup_time);
++ setup_us = (u32)ktime_to_us(setup_time);
++ if (setup_us == 0)
++ setup_us = 1;
++
++ trans_time = ktime_sub(t, dsi.perf_start_time);
++ trans_us = (u32)ktime_to_us(trans_time);
++ if (trans_us == 0)
++ trans_us = 1;
++
++ total_us = setup_us + trans_us;
++
++ total_bytes = dsi.update_region.w *
++ dsi.update_region.h *
++ dsi.update_region.bytespp;
++
++ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) {
++ dsi.perf_measure_frames++;
++
++ if (trans_us < s_min_us)
++ s_min_us = trans_us;
++
++ if (trans_us > s_max_us)
++ s_max_us = trans_us;
++
++ s_trans_us += trans_us;
++
++ if (dsi.perf_measure_frames < numframes)
++ return;
++
++ DSSINFO("%s update: %d frames in %u us "
++ "(min/max/avg %u/%u/%u), %u fps\n",
++ name, numframes,
++ s_trans_us,
++ s_min_us,
++ s_max_us,
++ s_trans_us / numframes,
++ 1000*1000 / (s_trans_us / numframes));
++
++ dsi.perf_measure_frames = 0;
++ s_trans_us = 0;
++ s_min_us = 0xffffffff;
++ s_max_us = 0;
++ } else {
++ DSSINFO("%s update %u us + %u us = %u us (%uHz), %u bytes, "
++ "%u kbytes/sec\n",
++ name,
++ setup_us,
++ trans_us,
++ total_us,
++ 1000*1000 / total_us,
++ total_bytes,
++ total_bytes * 1000 / total_us);
++ }
++}
++#else
++#define perf_mark_setup()
++#define perf_mark_start()
++#define perf_show(x)
++#endif
++
++static void print_irq_status(u32 status)
++{
++#ifndef VERBOSE_IRQ
++ if ((status & ~DSI_IRQ_CHANNEL_MASK) == 0)
++ return;
++#endif
++ printk(KERN_DEBUG "DSI IRQ: 0x%x: ", status);
++
++#define PIS(x) \
++ if (status & DSI_IRQ_##x) \
++ printk(#x " ");
++#ifdef VERBOSE_IRQ
++ PIS(VC0);
++ PIS(VC1);
++ PIS(VC2);
++ PIS(VC3);
++#endif
++ PIS(WAKEUP);
++ PIS(RESYNC);
++ PIS(PLL_LOCK);
++ PIS(PLL_UNLOCK);
++ PIS(PLL_RECALL);
++ PIS(COMPLEXIO_ERR);
++ PIS(HS_TX_TIMEOUT);
++ PIS(LP_RX_TIMEOUT);
++ PIS(TE_TRIGGER);
++ PIS(ACK_TRIGGER);
++ PIS(SYNC_LOST);
++ PIS(LDO_POWER_GOOD);
++ PIS(TA_TIMEOUT);
++#undef PIS
++
++ printk("\n");
++}
++
++static void print_irq_status_vc(int channel, u32 status)
++{
++#ifndef VERBOSE_IRQ
++ if ((status & ~DSI_VC_IRQ_PACKET_SENT) == 0)
++ return;
++#endif
++ printk(KERN_DEBUG "DSI VC(%d) IRQ 0x%x: ", channel, status);
++
++#define PIS(x) \
++ if (status & DSI_VC_IRQ_##x) \
++ printk(#x " ");
++ PIS(CS);
++ PIS(ECC_CORR);
++#ifdef VERBOSE_IRQ
++ PIS(PACKET_SENT);
++#endif
++ PIS(FIFO_TX_OVF);
++ PIS(FIFO_RX_OVF);
++ PIS(BTA);
++ PIS(ECC_NO_CORR);
++ PIS(FIFO_TX_UDF);
++ PIS(PP_BUSY_CHANGE);
++#undef PIS
++ printk("\n");
++}
++
++static void print_irq_status_cio(u32 status)
++{
++ printk(KERN_DEBUG "DSI CIO IRQ 0x%x: ", status);
++
++#define PIS(x) \
++ if (status & DSI_CIO_IRQ_##x) \
++ printk(#x " ");
++ PIS(ERRSYNCESC1);
++ PIS(ERRSYNCESC2);
++ PIS(ERRSYNCESC3);
++ PIS(ERRESC1);
++ PIS(ERRESC2);
++ PIS(ERRESC3);
++ PIS(ERRCONTROL1);
++ PIS(ERRCONTROL2);
++ PIS(ERRCONTROL3);
++ PIS(STATEULPS1);
++ PIS(STATEULPS2);
++ PIS(STATEULPS3);
++ PIS(ERRCONTENTIONLP0_1);
++ PIS(ERRCONTENTIONLP1_1);
++ PIS(ERRCONTENTIONLP0_2);
++ PIS(ERRCONTENTIONLP1_2);
++ PIS(ERRCONTENTIONLP0_3);
++ PIS(ERRCONTENTIONLP1_3);
++ PIS(ULPSACTIVENOT_ALL0);
++ PIS(ULPSACTIVENOT_ALL1);
++#undef PIS
++
++ printk("\n");
++}
++
++static int debug_irq;
++
++/* called from dss */
++void dsi_irq_handler(void)
++{
++ u32 irqstatus, vcstatus, ciostatus;
++ int i;
++
++ irqstatus = dsi_read_reg(DSI_IRQSTATUS);
++
++ if (irqstatus & DSI_IRQ_ERROR_MASK) {
++ DSSERR("DSI error, irqstatus %x\n", irqstatus);
++ print_irq_status(irqstatus);
++ } else if (debug_irq) {
++ print_irq_status(irqstatus);
++ }
++
++ for (i = 0; i < 4; ++i) {
++ if ((irqstatus & (1<<i)) == 0)
++ continue;
++
++ vcstatus = dsi_read_reg(DSI_VC_IRQSTATUS(i));
++
++ if (vcstatus & DSI_VC_IRQ_BTA)
++ complete(&dsi.bta_completion);
++
++ if (vcstatus & DSI_VC_IRQ_ERROR_MASK) {
++ DSSERR("DSI VC(%d) error, vc irqstatus %x\n",
++ i, vcstatus);
++ print_irq_status_vc(i, vcstatus);
++ } else if (debug_irq) {
++ print_irq_status_vc(i, vcstatus);
++ }
++
++ dsi_write_reg(DSI_VC_IRQSTATUS(i), vcstatus);
++ }
++
++ if (irqstatus & DSI_IRQ_COMPLEXIO_ERR) {
++ ciostatus = dsi_read_reg(DSI_COMPLEXIO_IRQ_STATUS);
++
++ dsi_write_reg(DSI_COMPLEXIO_IRQ_STATUS, ciostatus);
++
++ DSSERR("DSI CIO error, cio irqstatus %x\n", ciostatus);
++ print_irq_status_cio(ciostatus);
++ }
++
++ dsi_write_reg(DSI_IRQSTATUS, irqstatus & ~DSI_IRQ_CHANNEL_MASK);
++}
++
++
++static void _dsi_initialize_irq(void)
++{
++ u32 l;
++ int i;
++
++ /* disable all interrupts */
++ dsi_write_reg(DSI_IRQENABLE, 0);
++ for (i = 0; i < 4; ++i)
++ dsi_write_reg(DSI_VC_IRQENABLE(i), 0);
++ dsi_write_reg(DSI_COMPLEXIO_IRQ_ENABLE, 0);
++
++ /* clear interrupt status */
++ l = dsi_read_reg(DSI_IRQSTATUS);
++ dsi_write_reg(DSI_IRQSTATUS, l & ~DSI_IRQ_CHANNEL_MASK);
++
++ for (i = 0; i < 4; ++i) {
++ l = dsi_read_reg(DSI_VC_IRQSTATUS(i));
++ dsi_write_reg(DSI_VC_IRQSTATUS(i), l);
++ }
++
++ l = dsi_read_reg(DSI_COMPLEXIO_IRQ_STATUS);
++ dsi_write_reg(DSI_COMPLEXIO_IRQ_STATUS, l);
++
++ /* enable error irqs */
++ l = DSI_IRQ_ERROR_MASK;
++ dsi_write_reg(DSI_IRQENABLE, l);
++
++ l = DSI_VC_IRQ_ERROR_MASK;
++ for (i = 0; i < 4; ++i)
++ dsi_write_reg(DSI_VC_IRQENABLE(i), l);
++
++ /* XXX zonda responds incorrectly, causing control error:
++ Exit from LP-ESC mode to LP11 uses wrong transition states on the
++ data lines LP0 and LN0. */
++ dsi_write_reg(DSI_COMPLEXIO_IRQ_ENABLE,
++ -1 & (~DSI_CIO_IRQ_ERRCONTROL2));
++}
++
++static void dsi_vc_enable_bta_irq(int channel)
++{
++ u32 l;
++
++ l = dsi_read_reg(DSI_VC_IRQENABLE(channel));
++ l |= DSI_VC_IRQ_BTA;
++ dsi_write_reg(DSI_VC_IRQENABLE(channel), l);
++}
++
++static void dsi_vc_disable_bta_irq(int channel)
++{
++ u32 l;
++
++ l = dsi_read_reg(DSI_VC_IRQENABLE(channel));
++ l &= ~DSI_VC_IRQ_BTA;
++ dsi_write_reg(DSI_VC_IRQENABLE(channel), l);
++}
++
++/* DSI func clock. this could also be DSI2_PLL_FCLK */
++static inline void enable_clocks(bool enable)
++{
++ if (enable)
++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
++ else
++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
++}
++
++/* source clock for DSI PLL. this could also be PCLKFREE */
++static inline void dsi_enable_pll_clock(bool enable)
++{
++ if (enable)
++ dss_clk_enable(DSS_CLK_FCK2);
++ else
++ dss_clk_disable(DSS_CLK_FCK2);
++
++ if (enable && dsi.pll_locked) {
++ if (wait_for_bit_change(DSI_PLL_STATUS, 1, 1) != 1)
++ DSSERR("cannot lock PLL when enabling clocks\n");
++ }
++}
++
++#ifdef DEBUG
++static void _dsi_print_reset_status(void)
++{
++ u32 l;
++
++ if (!dss_debug)
++ return;
++
++ /* A dummy read using the SCP interface to any DSIPHY register is
++ * required after DSIPHY reset to complete the reset of the DSI complex
++ * I/O. */
++ l = dsi_read_reg(DSI_DSIPHY_CFG5);
++
++ printk(KERN_DEBUG "DSI resets: ");
++
++ l = dsi_read_reg(DSI_PLL_STATUS);
++ printk("PLL (%d) ", FLD_GET(l, 0, 0));
++
++ l = dsi_read_reg(DSI_COMPLEXIO_CFG1);
++ printk("CIO (%d) ", FLD_GET(l, 29, 29));
++
++ l = dsi_read_reg(DSI_DSIPHY_CFG5);
++ printk("PHY (%x, %d, %d, %d)\n",
++ FLD_GET(l, 28, 26),
++ FLD_GET(l, 29, 29),
++ FLD_GET(l, 30, 30),
++ FLD_GET(l, 31, 31));
++}
++#else
++#define _dsi_print_reset_status()
++#endif
++
++static inline int dsi_if_enable(bool enable)
++{
++ DSSDBG("dsi_if_enable(%d)\n", enable);
++
++ enable = enable ? 1 : 0;
++ REG_FLD_MOD(DSI_CTRL, enable, 0, 0); /* IF_EN */
++
++ if (wait_for_bit_change(DSI_CTRL, 0, enable) != enable) {
++ DSSERR("Failed to set dsi_if_enable to %d\n", enable);
++ return -EIO;
++ }
++
++ return 0;
++}
++
++static unsigned long dsi_fclk_rate(void)
++{
++ unsigned long r;
++
++ if (dss_get_dsi_clk_source() == 0) {
++ /* DSI FCLK source is DSS1_ALWON_FCK, which is dss1_fck */
++ r = dss_clk_get_rate(DSS_CLK_FCK1);
++ } else {
++ /* DSI FCLK source is DSI2_PLL_FCLK */
++ r = dsi.dsi2_pll_fclk;
++ }
++
++ return r;
++}
++
++static int dsi_set_lp_clk_divisor(void)
++{
++ int n;
++ unsigned long dsi_fclk;
++ unsigned long mhz;
++
++ /* LP_CLK_DIVISOR, DSI fclk/n, should be 20MHz - 32kHz */
++
++ dsi_fclk = dsi_fclk_rate();
++
++ for (n = 1; n < (1 << 13) - 1; ++n) {
++ mhz = dsi_fclk / n;
++ if (mhz <= 20*1000*1000)
++ break;
++ }
++
++ if (n == (1 << 13) - 1) {
++ DSSERR("Failed to find LP_CLK_DIVISOR\n");
++ return -EINVAL;
++ }
++
++ DSSDBG("LP_CLK_DIV %d, LP_CLK %ld\n", n, mhz);
++
++ REG_FLD_MOD(DSI_CLK_CTRL, n, 12, 0); /* LP_CLK_DIVISOR */
++ if (dsi_fclk > 30*1000*1000)
++ REG_FLD_MOD(DSI_CLK_CTRL, 1, 21, 21); /* LP_RX_SYNCHRO_ENABLE */
++
++ return 0;
++}
++
++
++enum dsi_pll_power_state {
++ DSI_PLL_POWER_OFF = 0x0,
++ DSI_PLL_POWER_ON_HSCLK = 0x1,
++ DSI_PLL_POWER_ON_ALL = 0x2,
++ DSI_PLL_POWER_ON_DIV = 0x3,
++};
++
++static int dsi_pll_power(enum dsi_pll_power_state state)
++{
++ int t = 0;
++
++ REG_FLD_MOD(DSI_CLK_CTRL, state, 31, 30); /* PLL_PWR_CMD */
++
++ /* PLL_PWR_STATUS */
++ while (FLD_GET(dsi_read_reg(DSI_CLK_CTRL), 29, 28) != state) {
++ udelay(1);
++ if (t++ > 1000) {
++ DSSERR("Failed to set DSI PLL power mode to %d\n",
++ state);
++ return -ENODEV;
++ }
++ }
++
++ return 0;
++}
++
++int dsi_pll_calc_pck(bool is_tft, unsigned long req_pck,
++ struct dsi_clock_info *cinfo)
++{
++ struct dsi_clock_info cur, best;
++ int min_fck_per_pck;
++ int match = 0;
++
++ if (req_pck == dsi.cache_req_pck &&
++ dsi.cache_cinfo.clkin == dss_clk_get_rate(DSS_CLK_FCK2)) {
++ DSSDBG("DSI clock info found from cache\n");
++ *cinfo = dsi.cache_cinfo;
++ return 0;
++ }
++
++ min_fck_per_pck = CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK;
++
++ if (min_fck_per_pck &&
++ req_pck * min_fck_per_pck > DISPC_MAX_FCK) {
++ DSSERR("Requested pixel clock not possible with the current "
++ "OMAP2_DSS_MIN_FCK_PER_PCK setting. Turning "
++ "the constraint off.\n");
++ min_fck_per_pck = 0;
++ }
++
++ DSSDBG("dsi_pll_calc\n");
++
++retry:
++ memset(&best, 0, sizeof(best));
++
++ memset(&cur, 0, sizeof(cur));
++ cur.clkin = dss_clk_get_rate(DSS_CLK_FCK2);
++ cur.use_dss2_fck = 1;
++ cur.highfreq = 0;
++
++ /* no highfreq: 0.75MHz < Fint = clkin / regn < 2.1MHz */
++ /* highfreq: 0.75MHz < Fint = clkin / (2*regn) < 2.1MHz */
++ /* To reduce PLL lock time, keep Fint high (around 2 MHz) */
++ for (cur.regn = 1; cur.regn < REGN_MAX; ++cur.regn) {
++ if (cur.highfreq == 0)
++ cur.fint = cur.clkin / cur.regn;
++ else
++ cur.fint = cur.clkin / (2 * cur.regn);
++
++ if (cur.fint > FINT_MAX || cur.fint < FINT_MIN)
++ continue;
++
++ /* DSIPHY(MHz) = (2 * regm / regn) * (clkin / (highfreq + 1)) */
++ for (cur.regm = 1; cur.regm < REGM_MAX; ++cur.regm) {
++ unsigned long a, b;
++
++ a = 2 * cur.regm * (cur.clkin/1000);
++ b = cur.regn * (cur.highfreq + 1);
++ cur.dsiphy = a / b * 1000;
++
++ if (cur.dsiphy > 1800 * 1000 * 1000)
++ break;
++
++ /* DSI1_PLL_FCLK(MHz) = DSIPHY(MHz) / regm3 < 173MHz */
++ for (cur.regm3 = 1; cur.regm3 < REGM3_MAX;
++ ++cur.regm3) {
++ cur.dsi1_pll_fclk = cur.dsiphy / cur.regm3;
++
++ /* this will narrow down the search a bit,
++ * but still give pixclocks below what was
++ * requested */
++ if (cur.dsi1_pll_fclk < req_pck)
++ break;
++
++ if (cur.dsi1_pll_fclk > DISPC_MAX_FCK)
++ continue;
++
++ if (min_fck_per_pck &&
++ cur.dsi1_pll_fclk <
++ req_pck * min_fck_per_pck)
++ continue;
++
++ match = 1;
++
++ find_lck_pck_divs(is_tft, req_pck,
++ cur.dsi1_pll_fclk,
++ &cur.lck_div,
++ &cur.pck_div);
++
++ cur.lck = cur.dsi1_pll_fclk / cur.lck_div;
++ cur.pck = cur.lck / cur.pck_div;
++
++ if (abs(cur.pck - req_pck) <
++ abs(best.pck - req_pck)) {
++ best = cur;
++
++ if (cur.pck == req_pck)
++ goto found;
++ }
++ }
++ }
++ }
++found:
++ if (!match) {
++ if (min_fck_per_pck) {
++ DSSERR("Could not find suitable clock settings.\n"
++ "Turning FCK/PCK constraint off and"
++ "trying again.\n");
++ min_fck_per_pck = 0;
++ goto retry;
++ }
++
++ DSSERR("Could not find suitable clock settings.\n");
++
++ return -EINVAL;
++ }
++
++ /* DSI2_PLL_FCLK (regm4) is not used. Set it to something sane. */
++ best.regm4 = best.dsiphy / 48000000;
++ if (best.regm4 > REGM4_MAX)
++ best.regm4 = REGM4_MAX;
++ else if (best.regm4 == 0)
++ best.regm4 = 1;
++ best.dsi2_pll_fclk = best.dsiphy / best.regm4;
++
++ if (cinfo)
++ *cinfo = best;
++
++ dsi.cache_req_pck = req_pck;
++ dsi.cache_clk_freq = 0;
++ dsi.cache_cinfo = best;
++
++ return 0;
++}
++
++static int dsi_pll_calc_ddrfreq(unsigned long clk_freq,
++ struct dsi_clock_info *cinfo)
++{
++ struct dsi_clock_info cur, best;
++ const bool use_dss2_fck = 1;
++ unsigned long datafreq;
++
++ DSSDBG("dsi_pll_calc_ddrfreq\n");
++
++ if (clk_freq == dsi.cache_clk_freq &&
++ dsi.cache_cinfo.clkin == dss_clk_get_rate(DSS_CLK_FCK2)) {
++ DSSDBG("DSI clock info found from cache\n");
++ *cinfo = dsi.cache_cinfo;
++ return 0;
++ }
++
++ datafreq = clk_freq * 4;
++
++ memset(&best, 0, sizeof(best));
++
++ memset(&cur, 0, sizeof(cur));
++ cur.use_dss2_fck = use_dss2_fck;
++ if (use_dss2_fck) {
++ cur.clkin = dss_clk_get_rate(DSS_CLK_FCK2);
++ cur.highfreq = 0;
++ } else {
++ cur.clkin = dispc_pclk_rate();
++ if (cur.clkin < 32000000)
++ cur.highfreq = 0;
++ else
++ cur.highfreq = 1;
++ }
++
++ /* no highfreq: 0.75MHz < Fint = clkin / regn < 2.1MHz */
++ /* highfreq: 0.75MHz < Fint = clkin / (2*regn) < 2.1MHz */
++ /* To reduce PLL lock time, keep Fint high (around 2 MHz) */
++ for (cur.regn = 1; cur.regn < REGN_MAX; ++cur.regn) {
++ if (cur.highfreq == 0)
++ cur.fint = cur.clkin / cur.regn;
++ else
++ cur.fint = cur.clkin / (2 * cur.regn);
++
++ if (cur.fint > FINT_MAX || cur.fint < FINT_MIN)
++ continue;
++
++ /* DSIPHY(MHz) = (2 * regm / regn) * (clkin / (highfreq + 1)) */
++ for (cur.regm = 1; cur.regm < REGM_MAX; ++cur.regm) {
++ unsigned long a, b;
++
++ a = 2 * cur.regm * (cur.clkin/1000);
++ b = cur.regn * (cur.highfreq + 1);
++ cur.dsiphy = a / b * 1000;
++
++ if (cur.dsiphy > 1800 * 1000 * 1000)
++ break;
++
++ if (abs(cur.dsiphy - datafreq) <
++ abs(best.dsiphy - datafreq)) {
++ best = cur;
++ /* DSSDBG("best %ld\n", best.dsiphy); */
++ }
++
++ if (cur.dsiphy == datafreq)
++ goto found;
++ }
++ }
++found:
++ /* DSI1_PLL_FCLK (regm3) is not used. Set it to something sane. */
++ best.regm3 = best.dsiphy / 48000000;
++ if (best.regm3 > REGM3_MAX)
++ best.regm3 = REGM3_MAX;
++ else if (best.regm3 == 0)
++ best.regm3 = 1;
++ best.dsi1_pll_fclk = best.dsiphy / best.regm3;
++
++ /* DSI2_PLL_FCLK (regm4) is not used. Set it to something sane. */
++ best.regm4 = best.dsiphy / 48000000;
++ if (best.regm4 > REGM4_MAX)
++ best.regm4 = REGM4_MAX;
++ else if (best.regm4 == 0)
++ best.regm4 = 1;
++ best.dsi2_pll_fclk = best.dsiphy / best.regm4;
++
++ if (cinfo)
++ *cinfo = best;
++
++ dsi.cache_clk_freq = clk_freq;
++ dsi.cache_req_pck = 0;
++ dsi.cache_cinfo = best;
++
++ return 0;
++}
++
++int dsi_pll_program(struct dsi_clock_info *cinfo)
++{
++ int r = 0;
++ u32 l;
++
++ DSSDBG("dsi_pll_program\n");
++
++ dsi.dsiphy = cinfo->dsiphy;
++ dsi.ddr_clk = dsi.dsiphy / 4;
++ dsi.dsi1_pll_fclk = cinfo->dsi1_pll_fclk;
++ dsi.dsi2_pll_fclk = cinfo->dsi2_pll_fclk;
++
++ DSSDBG("DSI Fint %ld\n", cinfo->fint);
++
++ DSSDBG("clkin (%s) rate %ld, highfreq %d\n",
++ cinfo->use_dss2_fck ? "dss2_fck" : "pclkfree",
++ cinfo->clkin,
++ cinfo->highfreq);
++
++ /* DSIPHY == CLKIN4DDR */
++ DSSDBG("DSIPHY = 2 * %d / %d * %lu / %d = %lu\n",
++ cinfo->regm,
++ cinfo->regn,
++ cinfo->clkin,
++ cinfo->highfreq + 1,
++ cinfo->dsiphy);
++
++ DSSDBG("Data rate on 1 DSI lane %ld Mbps\n",
++ dsi.dsiphy / 1000 / 1000 / 2);
++
++ DSSDBG("Clock lane freq %ld Hz\n", dsi.ddr_clk);
++
++ DSSDBG("regm3 = %d, dsi1_pll_fclk = %lu\n",
++ cinfo->regm3, cinfo->dsi1_pll_fclk);
++ DSSDBG("regm4 = %d, dsi2_pll_fclk = %lu\n",
++ cinfo->regm4, cinfo->dsi2_pll_fclk);
++
++ REG_FLD_MOD(DSI_PLL_CONTROL, 0, 0, 0); /* DSI_PLL_AUTOMODE = manual */
++
++ l = dsi_read_reg(DSI_PLL_CONFIGURATION1);
++ l = FLD_MOD(l, 1, 0, 0); /* DSI_PLL_STOPMODE */
++ l = FLD_MOD(l, cinfo->regn - 1, 7, 1); /* DSI_PLL_REGN */
++ l = FLD_MOD(l, cinfo->regm, 18, 8); /* DSI_PLL_REGM */
++ l = FLD_MOD(l, cinfo->regm3 - 1, 22, 19); /* DSI_CLOCK_DIV */
++ l = FLD_MOD(l, cinfo->regm4 - 1, 26, 23); /* DSIPROTO_CLOCK_DIV */
++ dsi_write_reg(DSI_PLL_CONFIGURATION1, l);
++
++ l = dsi_read_reg(DSI_PLL_CONFIGURATION2);
++ l = FLD_MOD(l, 7, 4, 1); /* DSI_PLL_FREQSEL */
++ /* DSI_PLL_CLKSEL */
++ l = FLD_MOD(l, cinfo->use_dss2_fck ? 0 : 1, 11, 11);
++ l = FLD_MOD(l, cinfo->highfreq, 12, 12); /* DSI_PLL_HIGHFREQ */
++ l = FLD_MOD(l, 1, 13, 13); /* DSI_PLL_REFEN */
++ l = FLD_MOD(l, 0, 14, 14); /* DSIPHY_CLKINEN */
++ l = FLD_MOD(l, 1, 20, 20); /* DSI_HSDIVBYPASS */
++ dsi_write_reg(DSI_PLL_CONFIGURATION2, l);
++
++ REG_FLD_MOD(DSI_PLL_GO, 1, 0, 0); /* DSI_PLL_GO */
++
++ if (wait_for_bit_change(DSI_PLL_GO, 0, 0) != 0) {
++ DSSERR("dsi pll go bit not going down.\n");
++ r = -EIO;
++ goto err;
++ }
++
++ if (wait_for_bit_change(DSI_PLL_STATUS, 1, 1) != 1) {
++ DSSERR("cannot lock PLL\n");
++ r = -EIO;
++ goto err;
++ }
++
++ dsi.pll_locked = 1;
++
++ l = dsi_read_reg(DSI_PLL_CONFIGURATION2);
++ l = FLD_MOD(l, 0, 0, 0); /* DSI_PLL_IDLE */
++ l = FLD_MOD(l, 0, 5, 5); /* DSI_PLL_PLLLPMODE */
++ l = FLD_MOD(l, 0, 6, 6); /* DSI_PLL_LOWCURRSTBY */
++ l = FLD_MOD(l, 0, 7, 7); /* DSI_PLL_TIGHTPHASELOCK */
++ l = FLD_MOD(l, 0, 8, 8); /* DSI_PLL_DRIFTGUARDEN */
++ l = FLD_MOD(l, 0, 10, 9); /* DSI_PLL_LOCKSEL */
++ l = FLD_MOD(l, 1, 13, 13); /* DSI_PLL_REFEN */
++ l = FLD_MOD(l, 1, 14, 14); /* DSIPHY_CLKINEN */
++ l = FLD_MOD(l, 0, 15, 15); /* DSI_BYPASSEN */
++ l = FLD_MOD(l, 1, 16, 16); /* DSS_CLOCK_EN */
++ l = FLD_MOD(l, 0, 17, 17); /* DSS_CLOCK_PWDN */
++ l = FLD_MOD(l, 1, 18, 18); /* DSI_PROTO_CLOCK_EN */
++ l = FLD_MOD(l, 0, 19, 19); /* DSI_PROTO_CLOCK_PWDN */
++ l = FLD_MOD(l, 0, 20, 20); /* DSI_HSDIVBYPASS */
++ dsi_write_reg(DSI_PLL_CONFIGURATION2, l);
++
++ DSSDBG("PLL config done\n");
++err:
++ return r;
++}
++
++int dsi_pll_init(bool enable_hsclk, bool enable_hsdiv)
++{
++ int r = 0;
++ enum dsi_pll_power_state pwstate;
++ struct dispc_clock_info cinfo;
++
++ DSSDBG("PLL init\n");
++
++ enable_clocks(1);
++ dsi_enable_pll_clock(1);
++
++ /* configure dispc fck and pixel clock to something sane */
++ r = dispc_calc_clock_div(1, 48 * 1000 * 1000, &cinfo);
++ if (r)
++ goto err0;
++
++ r = dispc_set_clock_div(&cinfo);
++ if (r) {
++ DSSERR("Failed to set basic clocks\n");
++ goto err0;
++ }
++
++ r = dss_dsi_power_up();
++ if (r)
++ goto err0;
++
++ /* PLL does not come out of reset without this... */
++ dispc_pck_free_enable(1);
++
++ if (wait_for_bit_change(DSI_PLL_STATUS, 0, 1) != 1) {
++ DSSERR("PLL not coming out of reset.\n");
++ r = -ENODEV;
++ goto err1;
++ }
++
++ /* ... but if left on, we get problems when planes do not
++ * fill the whole display. No idea about this XXX */
++ dispc_pck_free_enable(0);
++
++ if (enable_hsclk && enable_hsdiv)
++ pwstate = DSI_PLL_POWER_ON_ALL;
++ else if (enable_hsclk)
++ pwstate = DSI_PLL_POWER_ON_HSCLK;
++ else if (enable_hsdiv)
++ pwstate = DSI_PLL_POWER_ON_DIV;
++ else
++ pwstate = DSI_PLL_POWER_OFF;
++
++ r = dsi_pll_power(pwstate);
++
++ if (r)
++ goto err1;
++
++ DSSDBG("PLL init done\n");
++
++ return 0;
++err1:
++ dss_dsi_power_down();
++err0:
++ enable_clocks(0);
++ dsi_enable_pll_clock(0);
++ return r;
++}
++
++void dsi_pll_uninit(void)
++{
++ enable_clocks(0);
++ dsi_enable_pll_clock(0);
++
++ dsi.pll_locked = 0;
++ dsi_pll_power(DSI_PLL_POWER_OFF);
++ dss_dsi_power_down();
++ DSSDBG("PLL uninit done\n");
++}
++
++unsigned long dsi_get_dsi1_pll_rate(void)
++{
++ return dsi.dsi1_pll_fclk;
++}
++
++unsigned long dsi_get_dsi2_pll_rate(void)
++{
++ return dsi.dsi2_pll_fclk;
++}
++
++void dsi_dump_clocks(struct seq_file *s)
++{
++ int clksel;
++
++ enable_clocks(1);
++
++ clksel = REG_GET(DSI_PLL_CONFIGURATION2, 11, 11);
++
++ seq_printf(s, "- dsi -\n");
++
++ seq_printf(s, "dsi fclk source = %s\n",
++ dss_get_dsi_clk_source() == 0 ?
++ "dss1_alwon_fclk" : "dsi2_pll_fclk");
++
++ seq_printf(s, "dsi pll source = %s\n",
++ clksel == 0 ?
++ "dss2_alwon_fclk" : "pclkfree");
++
++ seq_printf(s, "DSIPHY\t\t%lu\nDDR_CLK\t\t%lu\n",
++ dsi.dsiphy, dsi.ddr_clk);
++
++ seq_printf(s, "dsi1_pll_fck\t%lu (%s)\n"
++ "dsi2_pll_fck\t%lu (%s)\n",
++ dsi.dsi1_pll_fclk,
++ dss_get_dispc_clk_source() == 0 ? "off" : "on",
++ dsi.dsi2_pll_fclk,
++ dss_get_dsi_clk_source() == 0 ? "off" : "on");
++
++ enable_clocks(0);
++}
++
++void dsi_dump_regs(struct seq_file *s)
++{
++#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dsi_read_reg(r))
++
++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ DUMPREG(DSI_REVISION);
++ DUMPREG(DSI_SYSCONFIG);
++ DUMPREG(DSI_SYSSTATUS);
++ DUMPREG(DSI_IRQSTATUS);
++ DUMPREG(DSI_IRQENABLE);
++ DUMPREG(DSI_CTRL);
++ DUMPREG(DSI_COMPLEXIO_CFG1);
++ DUMPREG(DSI_COMPLEXIO_IRQ_STATUS);
++ DUMPREG(DSI_COMPLEXIO_IRQ_ENABLE);
++ DUMPREG(DSI_CLK_CTRL);
++ DUMPREG(DSI_TIMING1);
++ DUMPREG(DSI_TIMING2);
++ DUMPREG(DSI_VM_TIMING1);
++ DUMPREG(DSI_VM_TIMING2);
++ DUMPREG(DSI_VM_TIMING3);
++ DUMPREG(DSI_CLK_TIMING);
++ DUMPREG(DSI_TX_FIFO_VC_SIZE);
++ DUMPREG(DSI_RX_FIFO_VC_SIZE);
++ DUMPREG(DSI_COMPLEXIO_CFG2);
++ DUMPREG(DSI_RX_FIFO_VC_FULLNESS);
++ DUMPREG(DSI_VM_TIMING4);
++ DUMPREG(DSI_TX_FIFO_VC_EMPTINESS);
++ DUMPREG(DSI_VM_TIMING5);
++ DUMPREG(DSI_VM_TIMING6);
++ DUMPREG(DSI_VM_TIMING7);
++ DUMPREG(DSI_STOPCLK_TIMING);
++
++ DUMPREG(DSI_VC_CTRL(0));
++ DUMPREG(DSI_VC_TE(0));
++ DUMPREG(DSI_VC_LONG_PACKET_HEADER(0));
++ DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(0));
++ DUMPREG(DSI_VC_SHORT_PACKET_HEADER(0));
++ DUMPREG(DSI_VC_IRQSTATUS(0));
++ DUMPREG(DSI_VC_IRQENABLE(0));
++
++ DUMPREG(DSI_VC_CTRL(1));
++ DUMPREG(DSI_VC_TE(1));
++ DUMPREG(DSI_VC_LONG_PACKET_HEADER(1));
++ DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(1));
++ DUMPREG(DSI_VC_SHORT_PACKET_HEADER(1));
++ DUMPREG(DSI_VC_IRQSTATUS(1));
++ DUMPREG(DSI_VC_IRQENABLE(1));
++
++ DUMPREG(DSI_VC_CTRL(2));
++ DUMPREG(DSI_VC_TE(2));
++ DUMPREG(DSI_VC_LONG_PACKET_HEADER(2));
++ DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(2));
++ DUMPREG(DSI_VC_SHORT_PACKET_HEADER(2));
++ DUMPREG(DSI_VC_IRQSTATUS(2));
++ DUMPREG(DSI_VC_IRQENABLE(2));
++
++ DUMPREG(DSI_VC_CTRL(3));
++ DUMPREG(DSI_VC_TE(3));
++ DUMPREG(DSI_VC_LONG_PACKET_HEADER(3));
++ DUMPREG(DSI_VC_LONG_PACKET_PAYLOAD(3));
++ DUMPREG(DSI_VC_SHORT_PACKET_HEADER(3));
++ DUMPREG(DSI_VC_IRQSTATUS(3));
++ DUMPREG(DSI_VC_IRQENABLE(3));
++
++ DUMPREG(DSI_DSIPHY_CFG0);
++ DUMPREG(DSI_DSIPHY_CFG1);
++ DUMPREG(DSI_DSIPHY_CFG2);
++ DUMPREG(DSI_DSIPHY_CFG5);
++
++ DUMPREG(DSI_PLL_CONTROL);
++ DUMPREG(DSI_PLL_STATUS);
++ DUMPREG(DSI_PLL_GO);
++ DUMPREG(DSI_PLL_CONFIGURATION1);
++ DUMPREG(DSI_PLL_CONFIGURATION2);
++
++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
++#undef DUMPREG
++}
++
++enum dsi_complexio_power_state {
++ DSI_COMPLEXIO_POWER_OFF = 0x0,
++ DSI_COMPLEXIO_POWER_ON = 0x1,
++ DSI_COMPLEXIO_POWER_ULPS = 0x2,
++};
++
++static int dsi_complexio_power(enum dsi_complexio_power_state state)
++{
++ int t = 0;
++
++ /* PWR_CMD */
++ REG_FLD_MOD(DSI_COMPLEXIO_CFG1, state, 28, 27);
++
++ /* PWR_STATUS */
++ while (FLD_GET(dsi_read_reg(DSI_COMPLEXIO_CFG1), 26, 25) != state) {
++ udelay(1);
++ if (t++ > 1000) {
++ DSSERR("failed to set complexio power state to "
++ "%d\n", state);
++ return -ENODEV;
++ }
++ }
++
++ return 0;
++}
++
++static void dsi_complexio_config(struct omap_display *display)
++{
++ u32 r;
++
++ int clk_lane = display->hw_config.u.dsi.clk_lane;
++ int data1_lane = display->hw_config.u.dsi.data1_lane;
++ int data2_lane = display->hw_config.u.dsi.data2_lane;
++ int clk_pol = display->hw_config.u.dsi.clk_pol;
++ int data1_pol = display->hw_config.u.dsi.data1_pol;
++ int data2_pol = display->hw_config.u.dsi.data2_pol;
++
++ r = dsi_read_reg(DSI_COMPLEXIO_CFG1);
++ r = FLD_MOD(r, clk_lane, 2, 0);
++ r = FLD_MOD(r, clk_pol, 3, 3);
++ r = FLD_MOD(r, data1_lane, 6, 4);
++ r = FLD_MOD(r, data1_pol, 7, 7);
++ r = FLD_MOD(r, data2_lane, 10, 8);
++ r = FLD_MOD(r, data2_pol, 11, 11);
++ dsi_write_reg(DSI_COMPLEXIO_CFG1, r);
++
++ /* The configuration of the DSI complex I/O (number of data lanes,
++ position, differential order) should not be changed while
++ DSS.DSI_CLK_CRTRL[20] LP_CLK_ENABLE bit is set to 1. In order for
++ the hardware to take into account a new configuration of the complex
++ I/O (done in DSS.DSI_COMPLEXIO_CFG1 register), it is recommended to
++ follow this sequence: First set the DSS.DSI_CTRL[0] IF_EN bit to 1,
++ then reset the DSS.DSI_CTRL[0] IF_EN to 0, then set
++ DSS.DSI_CLK_CTRL[20] LP_CLK_ENABLE to 1 and finally set again the
++ DSS.DSI_CTRL[0] IF_EN bit to 1. If the sequence is not followed, the
++ DSI complex I/O configuration is unknown. */
++
++ /*
++ REG_FLD_MOD(DSI_CTRL, 1, 0, 0);
++ REG_FLD_MOD(DSI_CTRL, 0, 0, 0);
++ REG_FLD_MOD(DSI_CLK_CTRL, 1, 20, 20);
++ REG_FLD_MOD(DSI_CTRL, 1, 0, 0);
++ */
++}
++
++static inline unsigned ns2ddr(unsigned ns)
++{
++ /* convert time in ns to ddr ticks, rounding up */
++ return (ns * (dsi.ddr_clk/1000/1000) + 999) / 1000;
++}
++
++static inline unsigned ddr2ns(unsigned ddr)
++{
++ return ddr * 1000 * 1000 / (dsi.ddr_clk / 1000);
++}
++
++static void dsi_complexio_timings(void)
++{
++ u32 r;
++ u32 ths_prepare, ths_prepare_ths_zero, ths_trail, ths_exit;
++ u32 tlpx_half, tclk_trail, tclk_zero;
++ u32 tclk_prepare;
++
++ /* calculate timings */
++
++ /* 1 * DDR_CLK = 2 * UI */
++
++ /* min 40ns + 4*UI max 85ns + 6*UI */
++ ths_prepare = ns2ddr(59) + 2;
++
++ /* min 145ns + 10*UI */
++ ths_prepare_ths_zero = ns2ddr(145) + 5;
++
++ /* min max(8*UI, 60ns+4*UI) */
++ ths_trail = max((unsigned)4, ns2ddr(60) + 2);
++
++ /* min 100ns */
++ ths_exit = ns2ddr(100);
++
++ /* tlpx min 50n */
++ tlpx_half = ns2ddr(25);
++
++ /* min 60ns */
++ tclk_trail = ns2ddr(60);
++
++ /* min 38ns, max 95ns */
++ tclk_prepare = ns2ddr(38);
++
++ /* min tclk-prepare + tclk-zero = 300ns */
++ tclk_zero = ns2ddr(300 - 38);
++
++ DSSDBG("ths_prepare %u (%uns), ths_prepare_ths_zero %u (%uns)\n",
++ ths_prepare, ddr2ns(ths_prepare),
++ ths_prepare_ths_zero, ddr2ns(ths_prepare_ths_zero));
++ DSSDBG("ths_trail %u (%uns), ths_exit %u (%uns)\n",
++ ths_trail, ddr2ns(ths_trail),
++ ths_exit, ddr2ns(ths_exit));
++
++ DSSDBG("tlpx_half %u (%uns), tclk_trail %u (%uns), "
++ "tclk_zero %u (%uns)\n",
++ tlpx_half, ddr2ns(tlpx_half),
++ tclk_trail, ddr2ns(tclk_trail),
++ tclk_zero, ddr2ns(tclk_zero));
++ DSSDBG("tclk_prepare %u (%uns)\n",
++ tclk_prepare, ddr2ns(tclk_prepare));
++
++ /* program timings */
++
++ r = dsi_read_reg(DSI_DSIPHY_CFG0);
++ r = FLD_MOD(r, ths_prepare, 31, 24);
++ r = FLD_MOD(r, ths_prepare_ths_zero, 23, 16);
++ r = FLD_MOD(r, ths_trail, 15, 8);
++ r = FLD_MOD(r, ths_exit, 7, 0);
++ dsi_write_reg(DSI_DSIPHY_CFG0, r);
++
++ r = dsi_read_reg(DSI_DSIPHY_CFG1);
++ r = FLD_MOD(r, tlpx_half, 22, 16);
++ r = FLD_MOD(r, tclk_trail, 15, 8);
++ r = FLD_MOD(r, tclk_zero, 7, 0);
++ dsi_write_reg(DSI_DSIPHY_CFG1, r);
++
++ r = dsi_read_reg(DSI_DSIPHY_CFG2);
++ r = FLD_MOD(r, tclk_prepare, 7, 0);
++ dsi_write_reg(DSI_DSIPHY_CFG2, r);
++}
++
++
++static int dsi_complexio_init(struct omap_display *display)
++{
++ int r = 0;
++
++ DSSDBG("dsi_complexio_init\n");
++
++ /* CIO_CLK_ICG, enable L3 clk to CIO */
++ REG_FLD_MOD(DSI_CLK_CTRL, 1, 14, 14);
++
++ /* A dummy read using the SCP interface to any DSIPHY register is
++ * required after DSIPHY reset to complete the reset of the DSI complex
++ * I/O. */
++ dsi_read_reg(DSI_DSIPHY_CFG5);
++
++ if (wait_for_bit_change(DSI_DSIPHY_CFG5, 30, 1) != 1) {
++ DSSERR("ComplexIO PHY not coming out of reset.\n");
++ r = -ENODEV;
++ goto err;
++ }
++
++ dsi_complexio_config(display);
++
++ r = dsi_complexio_power(DSI_COMPLEXIO_POWER_ON);
++
++ if (r)
++ goto err;
++
++ if (wait_for_bit_change(DSI_COMPLEXIO_CFG1, 29, 1) != 1) {
++ DSSERR("ComplexIO not coming out of reset.\n");
++ r = -ENODEV;
++ goto err;
++ }
++
++ if (wait_for_bit_change(DSI_COMPLEXIO_CFG1, 21, 1) != 1) {
++ DSSERR("ComplexIO LDO power down.\n");
++ r = -ENODEV;
++ goto err;
++ }
++
++ dsi_complexio_timings();
++
++ /*
++ The configuration of the DSI complex I/O (number of data lanes,
++ position, differential order) should not be changed while
++ DSS.DSI_CLK_CRTRL[20] LP_CLK_ENABLE bit is set to 1. For the
++ hardware to recognize a new configuration of the complex I/O (done
++ in DSS.DSI_COMPLEXIO_CFG1 register), it is recommended to follow
++ this sequence: First set the DSS.DSI_CTRL[0] IF_EN bit to 1, next
++ reset the DSS.DSI_CTRL[0] IF_EN to 0, then set DSS.DSI_CLK_CTRL[20]
++ LP_CLK_ENABLE to 1, and finally, set again the DSS.DSI_CTRL[0] IF_EN
++ bit to 1. If the sequence is not followed, the DSi complex I/O
++ configuration is undetermined.
++ */
++ dsi_if_enable(1);
++ dsi_if_enable(0);
++ REG_FLD_MOD(DSI_CLK_CTRL, 1, 20, 20); /* LP_CLK_ENABLE */
++ dsi_if_enable(1);
++ dsi_if_enable(0);
++
++ DSSDBG("CIO init done\n");
++err:
++ return r;
++}
++
++static void dsi_complexio_uninit(void)
++{
++ dsi_complexio_power(DSI_COMPLEXIO_POWER_OFF);
++}
++
++static int _dsi_wait_reset(void)
++{
++ int i = 0;
++
++ while (REG_GET(DSI_SYSSTATUS, 0, 0) == 0) {
++ if (i++ > 5) {
++ DSSERR("soft reset failed\n");
++ return -ENODEV;
++ }
++ udelay(1);
++ }
++
++ return 0;
++}
++
++static int _dsi_reset(void)
++{
++ /* Soft reset */
++ REG_FLD_MOD(DSI_SYSCONFIG, 1, 1, 1);
++ return _dsi_wait_reset();
++}
++
++
++static void dsi_config_tx_fifo(enum fifo_size size1, enum fifo_size size2,
++ enum fifo_size size3, enum fifo_size size4)
++{
++ u32 r = 0;
++ int add = 0;
++ int i;
++
++ dsi.vc[0].fifo_size = size1;
++ dsi.vc[1].fifo_size = size2;
++ dsi.vc[2].fifo_size = size3;
++ dsi.vc[3].fifo_size = size4;
++
++ for (i = 0; i < 4; i++) {
++ u8 v;
++ int size = dsi.vc[i].fifo_size;
++
++ if (add + size > 4) {
++ DSSERR("Illegal FIFO configuration\n");
++ BUG();
++ }
++
++ v = FLD_VAL(add, 2, 0) | FLD_VAL(size, 7, 4);
++ r |= v << (8 * i);
++ /*DSSDBG("TX FIFO vc %d: size %d, add %d\n", i, size, add); */
++ add += size;
++ }
++
++ dsi_write_reg(DSI_TX_FIFO_VC_SIZE, r);
++}
++
++static void dsi_config_rx_fifo(enum fifo_size size1, enum fifo_size size2,
++ enum fifo_size size3, enum fifo_size size4)
++{
++ u32 r = 0;
++ int add = 0;
++ int i;
++
++ dsi.vc[0].fifo_size = size1;
++ dsi.vc[1].fifo_size = size2;
++ dsi.vc[2].fifo_size = size3;
++ dsi.vc[3].fifo_size = size4;
++
++ for (i = 0; i < 4; i++) {
++ u8 v;
++ int size = dsi.vc[i].fifo_size;
++
++ if (add + size > 4) {
++ DSSERR("Illegal FIFO configuration\n");
++ BUG();
++ }
++
++ v = FLD_VAL(add, 2, 0) | FLD_VAL(size, 7, 4);
++ r |= v << (8 * i);
++ /*DSSDBG("RX FIFO vc %d: size %d, add %d\n", i, size, add); */
++ add += size;
++ }
++
++ dsi_write_reg(DSI_RX_FIFO_VC_SIZE, r);
++}
++
++static int dsi_force_tx_stop_mode_io(void)
++{
++ u32 r;
++
++ r = dsi_read_reg(DSI_TIMING1);
++ r = FLD_MOD(r, 1, 15, 15); /* FORCE_TX_STOP_MODE_IO */
++ dsi_write_reg(DSI_TIMING1, r);
++
++ if (wait_for_bit_change(DSI_TIMING1, 15, 0) != 0) {
++ DSSERR("TX_STOP bit not going down\n");
++ return -EIO;
++ }
++
++ return 0;
++}
++
++static void dsi_vc_print_status(int channel)
++{
++ u32 r;
++
++ r = dsi_read_reg(DSI_VC_CTRL(channel));
++ DSSDBG("vc %d: TX_FIFO_NOT_EMPTY %d, BTA_EN %d, VC_BUSY %d, "
++ "TX_FIFO_FULL %d, RX_FIFO_NOT_EMPTY %d, ",
++ channel,
++ FLD_GET(r, 5, 5),
++ FLD_GET(r, 6, 6),
++ FLD_GET(r, 15, 15),
++ FLD_GET(r, 16, 16),
++ FLD_GET(r, 20, 20));
++
++ r = dsi_read_reg(DSI_TX_FIFO_VC_EMPTINESS);
++ DSSDBG("EMPTINESS %d\n", (r >> (8 * channel)) & 0xff);
++}
++
++static void dsi_vc_config(int channel)
++{
++ u32 r;
++
++ DSSDBG("dsi_vc_config %d\n", channel);
++
++ r = dsi_read_reg(DSI_VC_CTRL(channel));
++
++ r = FLD_MOD(r, 0, 1, 1); /* SOURCE, 0 = L4 */
++ r = FLD_MOD(r, 0, 2, 2); /* BTA_SHORT_EN */
++ r = FLD_MOD(r, 0, 3, 3); /* BTA_LONG_EN */
++ r = FLD_MOD(r, 0, 4, 4); /* MODE, 0 = command */
++ r = FLD_MOD(r, 1, 7, 7); /* CS_TX_EN */
++ r = FLD_MOD(r, 1, 8, 8); /* ECC_TX_EN */
++ r = FLD_MOD(r, 0, 9, 9); /* MODE_SPEED, high speed on/off */
++
++ r = FLD_MOD(r, 4, 29, 27); /* DMA_RX_REQ_NB = no dma */
++ r = FLD_MOD(r, 4, 23, 21); /* DMA_TX_REQ_NB = no dma */
++
++ dsi_write_reg(DSI_VC_CTRL(channel), r);
++}
++
++static void dsi_vc_config_vp(int channel)
++{
++ u32 r;
++
++ DSSDBG("dsi_vc_config_vp\n");
++
++ r = dsi_read_reg(DSI_VC_CTRL(channel));
++
++ r = FLD_MOD(r, 1, 1, 1); /* SOURCE, 1 = video port */
++ r = FLD_MOD(r, 0, 2, 2); /* BTA_SHORT_EN */
++ r = FLD_MOD(r, 0, 3, 3); /* BTA_LONG_EN */
++ r = FLD_MOD(r, 0, 4, 4); /* MODE, 0 = command */
++ r = FLD_MOD(r, 1, 7, 7); /* CS_TX_EN */
++ r = FLD_MOD(r, 1, 8, 8); /* ECC_TX_EN */
++ r = FLD_MOD(r, 1, 9, 9); /* MODE_SPEED, high speed on/off */
++
++ r = FLD_MOD(r, 4, 29, 27); /* DMA_RX_REQ_NB = no dma */
++ r = FLD_MOD(r, 4, 23, 21); /* DMA_TX_REQ_NB = no dma */
++
++ dsi_write_reg(DSI_VC_CTRL(channel), r);
++}
++
++
++static int dsi_vc_enable(int channel, bool enable)
++{
++ DSSDBG("dsi_vc_enable channel %d, enable %d\n", channel, enable);
++
++ enable = enable ? 1 : 0;
++
++ REG_FLD_MOD(DSI_VC_CTRL(channel), enable, 0, 0);
++
++ if (wait_for_bit_change(DSI_VC_CTRL(channel), 0, enable) != enable) {
++ DSSERR("Failed to set dsi_vc_enable to %d\n", enable);
++ return -EIO;
++ }
++
++ return 0;
++}
++
++static void dsi_vc_enable_hs(int channel, bool enable)
++{
++ DSSDBG("dsi_vc_enable_hs(%d, %d)\n", channel, enable);
++
++ dsi_vc_enable(channel, 0);
++ dsi_if_enable(0);
++
++ REG_FLD_MOD(DSI_VC_CTRL(channel), enable, 9, 9);
++
++ dsi_vc_enable(channel, 1);
++ dsi_if_enable(1);
++
++ dsi_force_tx_stop_mode_io();
++}
++
++static void dsi_vc_flush_long_data(int channel)
++{
++ while (REG_GET(DSI_VC_CTRL(channel), 20, 20)) {
++ u32 val;
++ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel));
++ DSSDBG("\t\tb1 %#02x b2 %#02x b3 %#02x b4 %#02x\n",
++ (val >> 0) & 0xff,
++ (val >> 8) & 0xff,
++ (val >> 16) & 0xff,
++ (val >> 24) & 0xff);
++ }
++}
++
++static void dsi_show_rx_ack_with_err(u16 err)
++{
++ DSSERR("\tACK with ERROR (%#x):\n", err);
++ if (err & (1 << 0))
++ DSSERR("\t\tSoT Error\n");
++ if (err & (1 << 1))
++ DSSERR("\t\tSoT Sync Error\n");
++ if (err & (1 << 2))
++ DSSERR("\t\tEoT Sync Error\n");
++ if (err & (1 << 3))
++ DSSERR("\t\tEscape Mode Entry Command Error\n");
++ if (err & (1 << 4))
++ DSSERR("\t\tLP Transmit Sync Error\n");
++ if (err & (1 << 5))
++ DSSERR("\t\tHS Receive Timeout Error\n");
++ if (err & (1 << 6))
++ DSSERR("\t\tFalse Control Error\n");
++ if (err & (1 << 7))
++ DSSERR("\t\t(reserved7)\n");
++ if (err & (1 << 8))
++ DSSERR("\t\tECC Error, single-bit (corrected)\n");
++ if (err & (1 << 9))
++ DSSERR("\t\tECC Error, multi-bit (not corrected)\n");
++ if (err & (1 << 10))
++ DSSERR("\t\tChecksum Error\n");
++ if (err & (1 << 11))
++ DSSERR("\t\tData type not recognized\n");
++ if (err & (1 << 12))
++ DSSERR("\t\tInvalid VC ID\n");
++ if (err & (1 << 13))
++ DSSERR("\t\tInvalid Transmission Length\n");
++ if (err & (1 << 14))
++ DSSERR("\t\t(reserved14)\n");
++ if (err & (1 << 15))
++ DSSERR("\t\tDSI Protocol Violation\n");
++}
++
++static u16 dsi_vc_flush_receive_data(int channel)
++{
++ /* RX_FIFO_NOT_EMPTY */
++ while (REG_GET(DSI_VC_CTRL(channel), 20, 20)) {
++ u32 val;
++ u8 dt;
++ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel));
++ DSSDBG("\trawval %#08x\n", val);
++ dt = FLD_GET(val, 5, 0);
++ if (dt == DSI_DT_RX_ACK_WITH_ERR) {
++ u16 err = FLD_GET(val, 23, 8);
++ dsi_show_rx_ack_with_err(err);
++ } else if (dt == DSI_DT_RX_SHORT_READ_1) {
++ DSSDBG("\tDCS short response, 1 byte: %#x\n",
++ FLD_GET(val, 23, 8));
++ } else if (dt == DSI_DT_RX_SHORT_READ_2) {
++ DSSDBG("\tDCS short response, 2 byte: %#x\n",
++ FLD_GET(val, 23, 8));
++ } else if (dt == DSI_DT_RX_DCS_LONG_READ) {
++ DSSDBG("\tDCS long response, len %d\n",
++ FLD_GET(val, 23, 8));
++ dsi_vc_flush_long_data(channel);
++ } else {
++ DSSERR("\tunknown datatype 0x%02x\n", dt);
++ }
++ }
++ return 0;
++}
++
++static int dsi_vc_send_bta(int channel)
++{
++ unsigned long tmo;
++
++ /*DSSDBG("dsi_vc_send_bta_sync %d\n", channel); */
++
++ if (REG_GET(DSI_VC_CTRL(channel), 20, 20)) { /* RX_FIFO_NOT_EMPTY */
++ DSSERR("rx fifo not empty when sending BTA, dumping data:\n");
++ dsi_vc_flush_receive_data(channel);
++ }
++
++ REG_FLD_MOD(DSI_VC_CTRL(channel), 1, 6, 6); /* BTA_EN */
++
++ tmo = jiffies + msecs_to_jiffies(10);
++ while (REG_GET(DSI_VC_CTRL(channel), 6, 6) == 1) {
++ if (time_after(jiffies, tmo)) {
++ DSSERR("Failed to send BTA\n");
++ return -EIO;
++ }
++ }
++
++ return 0;
++}
++
++static int dsi_vc_send_bta_sync(int channel)
++{
++ int r = 0;
++
++ init_completion(&dsi.bta_completion);
++
++ dsi_vc_enable_bta_irq(channel);
++
++ r = dsi_vc_send_bta(channel);
++ if (r)
++ goto err;
++
++ if (wait_for_completion_timeout(&dsi.bta_completion,
++ msecs_to_jiffies(500)) == 0) {
++ DSSERR("Failed to receive BTA\n");
++ r = -EIO;
++ goto err;
++ }
++err:
++ dsi_vc_disable_bta_irq(channel);
++
++ return r;
++}
++
++static inline void dsi_vc_write_long_header(int channel, u8 data_type,
++ u16 len, u8 ecc)
++{
++ u32 val;
++ u8 data_id;
++
++ /*data_id = data_type | channel << 6; */
++ data_id = data_type | dsi.vc[channel].dest_per << 6;
++
++ val = FLD_VAL(data_id, 7, 0) | FLD_VAL(len, 23, 8) |
++ FLD_VAL(ecc, 31, 24);
++
++ dsi_write_reg(DSI_VC_LONG_PACKET_HEADER(channel), val);
++}
++
++static inline void dsi_vc_write_long_payload(int channel,
++ u8 b1, u8 b2, u8 b3, u8 b4)
++{
++ u32 val;
++
++ val = b4 << 24 | b3 << 16 | b2 << 8 | b1 << 0;
++
++/* DSSDBG("\twriting %02x, %02x, %02x, %02x (%#010x)\n",
++ b1, b2, b3, b4, val); */
++
++ dsi_write_reg(DSI_VC_LONG_PACKET_PAYLOAD(channel), val);
++}
++
++static int dsi_vc_send_long(int channel, u8 data_type, u8 *data, u16 len,
++ u8 ecc)
++{
++ /*u32 val; */
++ int i;
++ u8 *p;
++ int r = 0;
++ u8 b1, b2, b3, b4;
++
++ if (dsi.debug_write)
++ DSSDBG("dsi_vc_send_long, %d bytes\n", len);
++
++ /* len + header */
++ if (dsi.vc[channel].fifo_size * 32 * 4 < len + 4) {
++ DSSERR("unable to send long packet: packet too long.\n");
++ return -EINVAL;
++ }
++
++ dsi_vc_write_long_header(channel, data_type, len, ecc);
++
++ /*dsi_vc_print_status(0); */
++
++ p = data;
++ for (i = 0; i < len >> 2; i++) {
++ if (dsi.debug_write)
++ DSSDBG("\tsending full packet %d\n", i);
++ /*dsi_vc_print_status(0); */
++
++ b1 = *p++;
++ b2 = *p++;
++ b3 = *p++;
++ b4 = *p++;
++
++ dsi_vc_write_long_payload(channel, b1, b2, b3, b4);
++ }
++
++ i = len % 4;
++ if (i) {
++ b1 = 0; b2 = 0; b3 = 0;
++
++ if (dsi.debug_write)
++ DSSDBG("\tsending remainder bytes %d\n", i);
++
++ switch (i) {
++ case 3:
++ b1 = *p++;
++ b2 = *p++;
++ b3 = *p++;
++ break;
++ case 2:
++ b1 = *p++;
++ b2 = *p++;
++ break;
++ case 1:
++ b1 = *p++;
++ break;
++ }
++
++ dsi_vc_write_long_payload(channel, b1, b2, b3, 0);
++ }
++
++ return r;
++}
++
++static int dsi_vc_send_short(int channel, u8 data_type, u16 data, u8 ecc)
++{
++ u32 r;
++ u8 data_id;
++
++ if (dsi.debug_write)
++ DSSDBG("dsi_vc_send_short(ch%d, dt %#x, b1 %#x, b2 %#x)\n",
++ channel,
++ data_type, data & 0xff, (data >> 8) & 0xff);
++
++ if (FLD_GET(dsi_read_reg(DSI_VC_CTRL(channel)), 16, 16)) {
++ DSSERR("ERROR FIFO FULL, aborting transfer\n");
++ return -EINVAL;
++ }
++
++ data_id = data_type | channel << 6;
++
++ r = (data_id << 0) | (data << 8) | (ecc << 24);
++
++ dsi_write_reg(DSI_VC_SHORT_PACKET_HEADER(channel), r);
++
++ return 0;
++}
++
++int dsi_vc_send_null(int channel)
++{
++ u8 nullpkg[] = {0, 0, 0, 0};
++ return dsi_vc_send_long(0, DSI_DT_NULL_PACKET, nullpkg, 4, 0);
++}
++EXPORT_SYMBOL(dsi_vc_send_null);
++
++int dsi_vc_dcs_write_nosync(int channel, u8 *data, int len)
++{
++ int r;
++
++ BUG_ON(len == 0);
++
++ if (len == 1) {
++ r = dsi_vc_send_short(channel, DSI_DT_DCS_SHORT_WRITE_0,
++ data[0], 0);
++ } else if (len == 2) {
++ r = dsi_vc_send_short(channel, DSI_DT_DCS_SHORT_WRITE_1,
++ data[0] | (data[1] << 8), 0);
++ } else {
++ /* 0x39 = DCS Long Write */
++ r = dsi_vc_send_long(channel, DSI_DT_DCS_LONG_WRITE,
++ data, len, 0);
++ }
++
++ return r;
++}
++EXPORT_SYMBOL(dsi_vc_dcs_write_nosync);
++
++int dsi_vc_dcs_write(int channel, u8 *data, int len)
++{
++ int r;
++
++ r = dsi_vc_dcs_write_nosync(channel, data, len);
++ if (r)
++ return r;
++
++ /* Some devices need time to process the msg in low power mode.
++ This also makes the write synchronous, and checks that
++ the peripheral is still alive */
++ r = dsi_vc_send_bta_sync(channel);
++
++ return r;
++}
++EXPORT_SYMBOL(dsi_vc_dcs_write);
++
++int dsi_vc_dcs_read(int channel, u8 dcs_cmd, u8 *buf, int buflen)
++{
++ u32 val;
++ u8 dt;
++ int r;
++
++ if (dsi.debug_read)
++ DSSDBG("dsi_vc_dcs_read\n");
++
++ r = dsi_vc_send_short(channel, DSI_DT_DCS_READ, dcs_cmd, 0);
++ if (r)
++ return r;
++
++ r = dsi_vc_send_bta_sync(channel);
++ if (r)
++ return r;
++
++ if (REG_GET(DSI_VC_CTRL(channel), 20, 20) == 0) { /* RX_FIFO_NOT_EMPTY */
++ DSSERR("RX fifo empty when trying to read.\n");
++ return -EIO;
++ }
++
++ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel));
++ if (dsi.debug_read)
++ DSSDBG("\theader: %08x\n", val);
++ dt = FLD_GET(val, 5, 0);
++ if (dt == DSI_DT_RX_ACK_WITH_ERR) {
++ u16 err = FLD_GET(val, 23, 8);
++ dsi_show_rx_ack_with_err(err);
++ return -1;
++
++ } else if (dt == DSI_DT_RX_SHORT_READ_1) {
++ u8 data = FLD_GET(val, 15, 8);
++ if (dsi.debug_read)
++ DSSDBG("\tDCS short response, 1 byte: %02x\n", data);
++
++ if (buflen < 1)
++ return -1;
++
++ buf[0] = data;
++
++ return 1;
++ } else if (dt == DSI_DT_RX_SHORT_READ_2) {
++ u16 data = FLD_GET(val, 23, 8);
++ if (dsi.debug_read)
++ DSSDBG("\tDCS short response, 2 byte: %04x\n", data);
++
++ if (buflen < 2)
++ return -1;
++
++ buf[0] = data & 0xff;
++ buf[1] = (data >> 8) & 0xff;
++
++ return 2;
++ } else if (dt == DSI_DT_RX_DCS_LONG_READ) {
++ int w;
++ int len = FLD_GET(val, 23, 8);
++ if (dsi.debug_read)
++ DSSDBG("\tDCS long response, len %d\n", len);
++
++ if (len > buflen)
++ return -1;
++
++ /* two byte checksum ends the packet, not included in len */
++ for (w = 0; w < len + 2;) {
++ int b;
++ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel));
++ if (dsi.debug_read)
++ DSSDBG("\t\t%02x %02x %02x %02x\n",
++ (val >> 0) & 0xff,
++ (val >> 8) & 0xff,
++ (val >> 16) & 0xff,
++ (val >> 24) & 0xff);
++
++ for (b = 0; b < 4; ++b) {
++ if (w < len)
++ buf[w] = (val >> (b * 8)) & 0xff;
++ /* we discard the 2 byte checksum */
++ ++w;
++ }
++ }
++
++ return len;
++
++ } else {
++ DSSERR("\tunknown datatype 0x%02x\n", dt);
++ return -1;
++ }
++}
++EXPORT_SYMBOL(dsi_vc_dcs_read);
++
++
++int dsi_vc_set_max_rx_packet_size(int channel, u16 len)
++{
++ return dsi_vc_send_short(channel, DSI_DT_SET_MAX_RET_PKG_SIZE,
++ len, 0);
++}
++EXPORT_SYMBOL(dsi_vc_set_max_rx_packet_size);
++
++
++static int dsi_set_lp_rx_timeout(int ns, int x4, int x16)
++{
++ u32 r;
++ unsigned long fck;
++ int ticks;
++
++ /* ticks in DSI_FCK */
++
++ fck = dsi_fclk_rate();
++ ticks = (fck / 1000 / 1000) * ns / 1000;
++
++ if (ticks > 0x1fff) {
++ DSSERR("LP_TX_TO too high\n");
++ return -EINVAL;
++ }
++
++ r = dsi_read_reg(DSI_TIMING2);
++ r = FLD_MOD(r, 1, 15, 15); /* LP_RX_TO */
++ r = FLD_MOD(r, x16, 14, 14); /* LP_RX_TO_X16 */
++ r = FLD_MOD(r, x4, 13, 13); /* LP_RX_TO_X4 */
++ r = FLD_MOD(r, ticks, 12, 0); /* LP_RX_COUNTER */
++ dsi_write_reg(DSI_TIMING2, r);
++
++ DSSDBG("LP_RX_TO %ld ns (%#x ticks)\n",
++ (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) /
++ (fck / 1000 / 1000),
++ ticks);
++
++ return 0;
++}
++
++static int dsi_set_ta_timeout(int ns, int x8, int x16)
++{
++ u32 r;
++ unsigned long fck;
++ int ticks;
++
++ /* ticks in DSI_FCK */
++
++ fck = dsi_fclk_rate();
++ ticks = (fck / 1000 / 1000) * ns / 1000;
++
++ if (ticks > 0x1fff) {
++ DSSERR("TA_TO too high\n");
++ return -EINVAL;
++ }
++
++ r = dsi_read_reg(DSI_TIMING1);
++ r = FLD_MOD(r, 1, 31, 31); /* TA_TO */
++ r = FLD_MOD(r, x16, 30, 30); /* TA_TO_X16 */
++ r = FLD_MOD(r, x8, 29, 29); /* TA_TO_X8 */
++ r = FLD_MOD(r, ticks, 28, 16); /* TA_TO_COUNTER */
++ dsi_write_reg(DSI_TIMING1, r);
++
++ DSSDBG("TA_TO %ld ns (%#x ticks)\n",
++ (ticks * (x16 ? 16 : 1) * (x8 ? 8 : 1) * 1000) /
++ (fck / 1000 / 1000),
++ ticks);
++
++ return 0;
++}
++
++static int dsi_set_stop_state_counter(int ns, int x4, int x16)
++{
++ u32 r;
++ unsigned long fck;
++ int ticks;
++
++ /* ticks in DSI_FCK */
++
++ fck = dsi_fclk_rate();
++ ticks = (fck / 1000 / 1000) * ns / 1000;
++
++ if (ticks > 0x1fff) {
++ DSSERR("STOP_STATE_COUNTER_IO too high\n");
++ return -EINVAL;
++ }
++
++ r = dsi_read_reg(DSI_TIMING1);
++ r = FLD_MOD(r, 1, 15, 15); /* FORCE_TX_STOP_MODE_IO */
++ r = FLD_MOD(r, x16, 14, 14); /* STOP_STATE_X16_IO */
++ r = FLD_MOD(r, x4, 13, 13); /* STOP_STATE_X4_IO */
++ r = FLD_MOD(r, ticks, 12, 0); /* STOP_STATE_COUNTER_IO */
++ dsi_write_reg(DSI_TIMING1, r);
++
++ DSSDBG("STOP_STATE_COUNTER %ld ns (%#x ticks)\n",
++ (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) /
++ (fck / 1000 / 1000),
++ ticks);
++
++ return 0;
++}
++
++static int dsi_set_hs_tx_timeout(int ns, int x4, int x16)
++{
++ u32 r;
++ unsigned long fck;
++ int ticks;
++
++ /* ticks in TxByteClkHS */
++
++ fck = dsi.ddr_clk / 4;
++ ticks = (fck / 1000 / 1000) * ns / 1000;
++
++ if (ticks > 0x1fff) {
++ DSSERR("HS_TX_TO too high\n");
++ return -EINVAL;
++ }
++
++ r = dsi_read_reg(DSI_TIMING2);
++ r = FLD_MOD(r, 1, 31, 31); /* HS_TX_TO */
++ r = FLD_MOD(r, x16, 30, 30); /* HS_TX_TO_X16 */
++ r = FLD_MOD(r, x4, 29, 29); /* HS_TX_TO_X8 (4 really) */
++ r = FLD_MOD(r, ticks, 28, 16); /* HS_TX_TO_COUNTER */
++ dsi_write_reg(DSI_TIMING2, r);
++
++ DSSDBG("HS_TX_TO %ld ns (%#x ticks)\n",
++ (ticks * (x16 ? 16 : 1) * (x4 ? 4 : 1) * 1000) /
++ (fck / 1000 / 1000),
++ ticks);
++
++ return 0;
++}
++static int dsi_proto_config(struct omap_display *display)
++{
++ u32 r;
++ int buswidth = 0;
++
++ dsi_config_tx_fifo(DSI_FIFO_SIZE_128,
++ DSI_FIFO_SIZE_0,
++ DSI_FIFO_SIZE_0,
++ DSI_FIFO_SIZE_0);
++
++ dsi_config_rx_fifo(DSI_FIFO_SIZE_128,
++ DSI_FIFO_SIZE_0,
++ DSI_FIFO_SIZE_0,
++ DSI_FIFO_SIZE_0);
++
++ /* XXX what values for the timeouts? */
++ dsi_set_stop_state_counter(1000, 0, 0);
++
++ dsi_set_ta_timeout(50000, 1, 1);
++
++ /* 3000ns * 16 */
++ dsi_set_lp_rx_timeout(3000, 0, 1);
++
++ /* 10000ns * 4 */
++ dsi_set_hs_tx_timeout(10000, 1, 0);
++
++ switch (display->ctrl->pixel_size) {
++ case 16:
++ buswidth = 0;
++ break;
++ case 18:
++ buswidth = 1;
++ break;
++ case 24:
++ buswidth = 2;
++ break;
++ default:
++ BUG();
++ }
++
++ r = dsi_read_reg(DSI_CTRL);
++ r = FLD_MOD(r, 1, 1, 1); /* CS_RX_EN */
++ r = FLD_MOD(r, 1, 2, 2); /* ECC_RX_EN */
++ r = FLD_MOD(r, 1, 3, 3); /* TX_FIFO_ARBITRATION */
++ /* XXX what should the ratio be */
++ r = FLD_MOD(r, 0, 4, 4); /* VP_CLK_RATIO, VP_PCLK = VP_CLK/2 */
++ r = FLD_MOD(r, buswidth, 7, 6); /* VP_DATA_BUS_WIDTH */
++ r = FLD_MOD(r, 0, 8, 8); /* VP_CLK_POL */
++ r = FLD_MOD(r, 2, 13, 12); /* LINE_BUFFER, 2 lines */
++ r = FLD_MOD(r, 1, 14, 14); /* TRIGGER_RESET_MODE */
++ r = FLD_MOD(r, 1, 19, 19); /* EOT_ENABLE */
++ r = FLD_MOD(r, 1, 24, 24); /* DCS_CMD_ENABLE */
++ r = FLD_MOD(r, 0, 25, 25); /* DCS_CMD_CODE, 1=start, 0=continue */
++
++ dsi_write_reg(DSI_CTRL, r);
++
++ /* we configure vc0 for L4 communication, and
++ * vc1 for dispc */
++ dsi_vc_config(0);
++ dsi_vc_config_vp(1);
++
++ /* set all vc targets to peripheral 0 */
++ dsi.vc[0].dest_per = 0;
++ dsi.vc[1].dest_per = 0;
++ dsi.vc[2].dest_per = 0;
++ dsi.vc[3].dest_per = 0;
++
++ return 0;
++}
++
++static void dsi_proto_timings(void)
++{
++ int tlpx_half, tclk_zero, tclk_prepare, tclk_trail;
++ int tclk_pre, tclk_post;
++ int ddr_clk_pre, ddr_clk_post;
++ u32 r;
++
++ r = dsi_read_reg(DSI_DSIPHY_CFG1);
++ tlpx_half = FLD_GET(r, 22, 16);
++ tclk_trail = FLD_GET(r, 15, 8);
++ tclk_zero = FLD_GET(r, 7, 0);
++
++ r = dsi_read_reg(DSI_DSIPHY_CFG2);
++ tclk_prepare = FLD_GET(r, 7, 0);
++
++ /* min 8*UI */
++ tclk_pre = 20;
++ /* min 60ns + 52*UI */
++ tclk_post = ns2ddr(60) + 26;
++
++ ddr_clk_pre = (tclk_pre + tlpx_half*2 + tclk_zero + tclk_prepare) / 4;
++ ddr_clk_post = (tclk_post + tclk_trail) / 4;
++
++ r = dsi_read_reg(DSI_CLK_TIMING);
++ r = FLD_MOD(r, ddr_clk_pre, 15, 8);
++ r = FLD_MOD(r, ddr_clk_post, 7, 0);
++ dsi_write_reg(DSI_CLK_TIMING, r);
++
++ DSSDBG("ddr_clk_pre %d, ddr_clk_post %d\n",
++ ddr_clk_pre,
++ ddr_clk_post);
++}
++
++
++#define DSI_DECL_VARS \
++ int __dsi_cb = 0; u32 __dsi_cv = 0;
++
++#define DSI_FLUSH(ch) \
++ if (__dsi_cb > 0) { \
++ /*DSSDBG("sending long packet %#010x\n", __dsi_cv);*/ \
++ dsi_write_reg(DSI_VC_LONG_PACKET_PAYLOAD(ch), __dsi_cv); \
++ __dsi_cb = __dsi_cv = 0; \
++ }
++
++#define DSI_PUSH(ch, data) \
++ do { \
++ __dsi_cv |= (data) << (__dsi_cb * 8); \
++ /*DSSDBG("cv = %#010x, cb = %d\n", __dsi_cv, __dsi_cb);*/ \
++ if (++__dsi_cb > 3) \
++ DSI_FLUSH(ch); \
++ } while (0)
++
++static int dsi_update_screen_l4(struct omap_display *display,
++ int x, int y, int w, int h)
++{
++ /* Note: supports only 24bit colors in 32bit container */
++ int first = 1;
++ int fifo_stalls = 0;
++ int max_dsi_packet_size;
++ int max_data_per_packet;
++ int max_pixels_per_packet;
++ int pixels_left;
++ int bytespp = 3;
++ int scr_width;
++ u32 __iomem *data;
++ int start_offset;
++ int horiz_inc;
++ int current_x;
++ struct omap_overlay *ovl;
++
++ debug_irq = 0;
++
++ DSSDBG("dsi_update_screen_l4 (%d,%d %dx%d)\n",
++ x, y, w, h);
++
++ ovl = display->manager->overlays[0];
++
++ if (ovl->info.color_mode != OMAP_DSS_COLOR_RGB24U)
++ return -EINVAL;
++
++ if (display->ctrl->pixel_size != 24)
++ return -EINVAL;
++
++ scr_width = ovl->info.screen_width;
++ data = ovl->info.vaddr;
++
++ start_offset = scr_width * y + x;
++ horiz_inc = scr_width - w;
++ current_x = x;
++
++ /* We need header(4) + DCSCMD(1) + pixels(numpix*bytespp) bytes
++ * in fifo */
++
++ /* When using CPU, max long packet size is TX buffer size */
++ max_dsi_packet_size = dsi.vc[0].fifo_size * 32 * 4;
++
++ /* we seem to get better perf if we divide the tx fifo to half,
++ and while the other half is being sent, we fill the other half
++ max_dsi_packet_size /= 2; */
++
++ max_data_per_packet = max_dsi_packet_size - 4 - 1;
++
++ max_pixels_per_packet = max_data_per_packet / bytespp;
++
++ DSSDBG("max_pixels_per_packet %d\n", max_pixels_per_packet);
++
++ display->ctrl->setup_update(display, x, y, w, h);
++
++ pixels_left = w * h;
++
++ DSSDBG("total pixels %d\n", pixels_left);
++
++ data += start_offset;
++
++#ifdef DEBUG
++ dsi.update_region.x = x;
++ dsi.update_region.y = y;
++ dsi.update_region.w = w;
++ dsi.update_region.h = h;
++ dsi.update_region.bytespp = bytespp;
++#endif
++
++ perf_mark_start();
++
++ while (pixels_left > 0) {
++ /* 0x2c = write_memory_start */
++ /* 0x3c = write_memory_continue */
++ u8 dcs_cmd = first ? 0x2c : 0x3c;
++ int pixels;
++ DSI_DECL_VARS;
++ first = 0;
++
++#if 1
++ /* using fifo not empty */
++ /* TX_FIFO_NOT_EMPTY */
++ while (FLD_GET(dsi_read_reg(DSI_VC_CTRL(0)), 5, 5)) {
++ udelay(1);
++ fifo_stalls++;
++ if (fifo_stalls > 0xfffff) {
++ DSSERR("fifo stalls overflow, pixels left %d\n",
++ pixels_left);
++ dsi_if_enable(0);
++ return -EIO;
++ }
++ }
++#elif 1
++ /* using fifo emptiness */
++ while ((REG_GET(DSI_TX_FIFO_VC_EMPTINESS, 7, 0)+1)*4 <
++ max_dsi_packet_size) {
++ fifo_stalls++;
++ if (fifo_stalls > 0xfffff) {
++ DSSERR("fifo stalls overflow, pixels left %d\n",
++ pixels_left);
++ dsi_if_enable(0);
++ return -EIO;
++ }
++ }
++#else
++ while ((REG_GET(DSI_TX_FIFO_VC_EMPTINESS, 7, 0)+1)*4 == 0) {
++ fifo_stalls++;
++ if (fifo_stalls > 0xfffff) {
++ DSSERR("fifo stalls overflow, pixels left %d\n",
++ pixels_left);
++ dsi_if_enable(0);
++ return -EIO;
++ }
++ }
++#endif
++ pixels = min(max_pixels_per_packet, pixels_left);
++
++ pixels_left -= pixels;
++
++ dsi_vc_write_long_header(0, DSI_DT_DCS_LONG_WRITE,
++ 1 + pixels * bytespp, 0);
++
++ DSI_PUSH(0, dcs_cmd);
++
++ while (pixels-- > 0) {
++ u32 pix = __raw_readl(data++);
++
++ DSI_PUSH(0, (pix >> 16) & 0xff);
++ DSI_PUSH(0, (pix >> 8) & 0xff);
++ DSI_PUSH(0, (pix >> 0) & 0xff);
++
++ current_x++;
++ if (current_x == x+w) {
++ current_x = x;
++ data += horiz_inc;
++ }
++ }
++
++ DSI_FLUSH(0);
++ }
++
++ perf_show("L4");
++
++ return 0;
++}
++
++#if 0
++static void dsi_clear_screen_l4(struct omap_display *display,
++ int x, int y, int w, int h)
++{
++ int first = 1;
++ int fifo_stalls = 0;
++ int max_dsi_packet_size;
++ int max_data_per_packet;
++ int max_pixels_per_packet;
++ int pixels_left;
++ int bytespp = 3;
++ int pixnum;
++
++ debug_irq = 0;
++
++ DSSDBG("dsi_clear_screen_l4 (%d,%d %dx%d)\n",
++ x, y, w, h);
++
++ if (display->ctrl->bpp != 24)
++ return -EINVAL;
++
++ /* We need header(4) + DCSCMD(1) + pixels(numpix*bytespp)
++ * bytes in fifo */
++
++ /* When using CPU, max long packet size is TX buffer size */
++ max_dsi_packet_size = dsi.vc[0].fifo_size * 32 * 4;
++
++ max_data_per_packet = max_dsi_packet_size - 4 - 1;
++
++ max_pixels_per_packet = max_data_per_packet / bytespp;
++
++ enable_clocks(1);
++
++ display->ctrl->setup_update(display, x, y, w, h);
++
++ pixels_left = w * h;
++
++ dsi.update_region.x = x;
++ dsi.update_region.y = y;
++ dsi.update_region.w = w;
++ dsi.update_region.h = h;
++ dsi.update_region.bytespp = bytespp;
++
++ start_measuring();
++
++ pixnum = 0;
++
++ while (pixels_left > 0) {
++ /* 0x2c = write_memory_start */
++ /* 0x3c = write_memory_continue */
++ u8 dcs_cmd = first ? 0x2c : 0x3c;
++ int pixels;
++ DSI_DECL_VARS;
++ first = 0;
++
++ /* TX_FIFO_NOT_EMPTY */
++ while (FLD_GET(dsi_read_reg(DSI_VC_CTRL(0)), 5, 5)) {
++ fifo_stalls++;
++ if (fifo_stalls > 0xfffff) {
++ DSSERR("fifo stalls overflow\n");
++ dsi_if_enable(0);
++ enable_clocks(0);
++ return;
++ }
++ }
++
++ pixels = min(max_pixels_per_packet, pixels_left);
++
++ pixels_left -= pixels;
++
++ dsi_vc_write_long_header(0, DSI_DT_DCS_LONG_WRITE,
++ 1 + pixels * bytespp, 0);
++
++ DSI_PUSH(0, dcs_cmd);
++
++ while (pixels-- > 0) {
++ u32 pix;
++
++ pix = 0x000000;
++
++ DSI_PUSH(0, (pix >> 16) & 0xff);
++ DSI_PUSH(0, (pix >> 8) & 0xff);
++ DSI_PUSH(0, (pix >> 0) & 0xff);
++ }
++
++ DSI_FLUSH(0);
++ }
++
++ enable_clocks(0);
++
++ end_measuring("L4 CLEAR");
++}
++#endif
++
++static void dsi_setup_update_dispc(struct omap_display *display,
++ u16 x, u16 y, u16 w, u16 h)
++{
++ DSSDBG("dsi_setup_update_dispc(%d,%d %dx%d)\n",
++ x, y, w, h);
++
++#ifdef DEBUG
++ dsi.update_region.x = x;
++ dsi.update_region.y = y;
++ dsi.update_region.w = w;
++ dsi.update_region.h = h;
++ dsi.update_region.bytespp = 3; // XXX
++#endif
++
++ dispc_setup_partial_planes(display, &x, &y, &w, &h);
++
++ dispc_set_lcd_size(w, h);
++}
++
++static void dsi_setup_autoupdate_dispc(struct omap_display *display)
++{
++ u16 w, h;
++
++ display->get_resolution(display, &w, &h);
++
++#ifdef DEBUG
++ dsi.update_region.x = 0;
++ dsi.update_region.y = 0;
++ dsi.update_region.w = w;
++ dsi.update_region.h = h;
++ dsi.update_region.bytespp = 3; // XXX
++#endif
++
++ /* the overlay settings may not have been applied, if we were in manual
++ * mode earlier, so do it here */
++ display->manager->apply(display->manager);
++
++ dispc_set_lcd_size(w, h);
++
++ dsi.autoupdate_setup = 0;
++}
++
++static void dsi_update_screen_dispc(struct omap_display *display,
++ u16 x, u16 y, u16 w, u16 h)
++{
++ int bytespp = 3;
++ int total_len;
++ int line_packet_len;
++ u32 l;
++
++ if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL)
++ DSSDBG("dsi_update_screen_dispc(%d,%d %dx%d)\n",
++ x, y, w, h);
++
++ /* TODO: one packet could be longer, I think? Max is the line buffer */
++ line_packet_len = w * bytespp + 1; /* 1 byte for DCS cmd */
++ total_len = line_packet_len * h;
++
++ display->ctrl->setup_update(display, x, y, w, h);
++
++ if (0)
++ dsi_vc_print_status(1);
++
++ perf_mark_start();
++
++ l = FLD_VAL(total_len, 23, 0); /* TE_SIZE */
++ dsi_write_reg(DSI_VC_TE(1), l);
++
++ dsi_vc_write_long_header(1, DSI_DT_DCS_LONG_WRITE, line_packet_len, 0);
++
++ if (dsi.use_te)
++ l = FLD_MOD(l, 1, 30, 30); /* TE_EN */
++ else
++ l = FLD_MOD(l, 1, 31, 31); /* TE_START */
++ dsi_write_reg(DSI_VC_TE(1), l);
++
++ dispc_enable_lcd_out(1);
++
++ if (dsi.use_te)
++ dsi_vc_send_bta(1);
++}
++
++static void framedone_callback(void *data, u32 mask)
++{
++ if (dsi.framedone_scheduled) {
++ DSSERR("Framedone already scheduled. Bogus FRAMEDONE IRQ?\n");
++ return;
++ }
++
++ dsi.framedone_scheduled = 1;
++
++ /* We get FRAMEDONE when DISPC has finished sending pixels and turns
++ * itself off. However, DSI still has the pixels in its buffers, and
++ * is sending the data. Thus we have to wait until we can do a new
++ * transfer or turn the clocks off. We do that in a separate work
++ * func. */
++ queue_work(dsi.workqueue, &dsi.framedone_work);
++}
++
++static void framedone_worker(struct work_struct *work)
++{
++ u32 l;
++ unsigned long tmo;
++ int i = 0;
++
++ l = REG_GET(DSI_VC_TE(1), 23, 0); /* TE_SIZE */
++
++ /* There shouldn't be much stuff in DSI buffers, if any, so we'll
++ * just busyloop */
++ if (l > 0) {
++ tmo = jiffies + msecs_to_jiffies(50);
++ while (REG_GET(DSI_VC_TE(1), 23, 0) > 0) { /* TE_SIZE */
++ i++;
++ if (time_after(jiffies, tmo)) {
++ DSSERR("timeout waiting TE_SIZE to zero\n");
++ break;
++ }
++ cpu_relax();
++ }
++ }
++
++ if (REG_GET(DSI_VC_TE(1), 30, 30))
++ DSSERR("TE_EN not zero\n");
++
++ if (REG_GET(DSI_VC_TE(1), 31, 31))
++ DSSERR("TE_START not zero\n");
++
++ perf_show("DISPC");
++
++ if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL)
++ DSSDBG("FRAMEDONE\n");
++
++#if 0
++ if (l)
++ DSSWARN("FRAMEDONE irq too early, %d bytes, %d loops\n", l, i);
++#else
++ if (l > 1024*3)
++ DSSWARN("FRAMEDONE irq too early, %d bytes, %d loops\n", l, i);
++#endif
++
++#ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC
++ dispc_fake_vsync_irq();
++#endif
++ dsi.framedone_scheduled = 0;
++
++ /* XXX check that fifo is not full. otherwise we would sleep and never
++ * get to process_cmd_fifo below */
++ /* We check for target_update_mode, not update_mode. No reason to push
++ * new updates if we're turning auto update off */
++ if (dsi.target_update_mode == OMAP_DSS_UPDATE_AUTO)
++ dsi_push_autoupdate(dsi.vc[1].display);
++
++ atomic_set(&dsi.cmd_pending, 0);
++ dsi_process_cmd_fifo(NULL);
++}
++
++static void dsi_start_auto_update(struct omap_display *display)
++{
++ DSSDBG("starting auto update\n");
++
++ dsi.autoupdate_setup = 1;
++
++ dsi_push_autoupdate(display);
++}
++
++
++
++
++
++
++
++
++
++
++
++
++
++/* FIFO functions */
++
++static void dsi_signal_fifo_waiters(void)
++{
++ if (atomic_read(&dsi.cmd_fifo_full) > 0) {
++ DSSDBG("SIGNALING: Fifo not full for waiter!\n");
++ complete(&dsi.cmd_done);
++ atomic_dec(&dsi.cmd_fifo_full);
++ }
++}
++
++/* returns 1 for async op, and 0 for sync op */
++static int dsi_do_update(struct omap_display *display,
++ struct dsi_cmd_update *upd)
++{
++ int r;
++ u16 x = upd->x, y = upd->y, w = upd->w, h = upd->h;
++ u16 dw, dh;
++
++ if (dsi.update_mode == OMAP_DSS_UPDATE_DISABLED)
++ return 0;
++
++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE)
++ return 0;
++
++ display->get_resolution(display, &dw, &dh);
++ if (x > dw || y > dh)
++ return 0;
++
++ if (x + w > dw)
++ w = dw - x;
++
++ if (y + h > dh)
++ h = dh - y;
++
++ DSSDBGF("%d,%d %dx%d", x, y, w, h);
++
++ perf_mark_setup();
++
++ if (display->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) {
++ dsi_setup_update_dispc(display, x, y, w, h);
++ dsi_update_screen_dispc(display, x, y, w, h);
++ return 1;
++ } else {
++ r = dsi_update_screen_l4(display, x, y, w, h);
++ if (r)
++ DSSERR("L4 update failed\n");
++ return 0;
++ }
++}
++
++/* returns 1 for async op, and 0 for sync op */
++static int dsi_do_autoupdate(struct omap_display *display)
++{
++ int r;
++ u16 w, h;
++
++ if (dsi.update_mode == OMAP_DSS_UPDATE_DISABLED)
++ return 0;
++
++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE)
++ return 0;
++
++ display->get_resolution(display, &w, &h);
++
++ perf_mark_setup();
++
++ if (display->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) {
++ if (dsi.autoupdate_setup)
++ dsi_setup_autoupdate_dispc(display);
++ dsi_update_screen_dispc(display, 0, 0, w, h);
++ return 1;
++ } else {
++ r = dsi_update_screen_l4(display, 0, 0, w, h);
++ if (r)
++ DSSERR("L4 update failed\n");
++ return 0;
++ }
++}
++
++static void dsi_do_cmd_mem_read(struct omap_display *display,
++ struct dsi_cmd_mem_read *mem_read)
++{
++ int r;
++ r = display->ctrl->memory_read(display,
++ mem_read->buf,
++ mem_read->size,
++ mem_read->x,
++ mem_read->y,
++ mem_read->w,
++ mem_read->h);
++
++ *mem_read->ret_size = (size_t)r;
++ complete(mem_read->completion);
++}
++
++static void dsi_do_cmd_test(struct omap_display *display,
++ struct dsi_cmd_test *test)
++{
++ int r = 0;
++
++ DSSDBGF("");
++
++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE)
++ return;
++
++ /* run test first in low speed mode */
++ dsi_vc_enable_hs(0, 0);
++
++ if (display->ctrl->run_test) {
++ r = display->ctrl->run_test(display, test->test_num);
++ if (r)
++ goto end;
++ }
++
++ if (display->panel->run_test) {
++ r = display->panel->run_test(display, test->test_num);
++ if (r)
++ goto end;
++ }
++
++ /* then in high speed */
++ dsi_vc_enable_hs(0, 1);
++
++ if (display->ctrl->run_test) {
++ r = display->ctrl->run_test(display, test->test_num);
++ if (r)
++ goto end;
++ }
++
++ if (display->panel->run_test)
++ r = display->panel->run_test(display, test->test_num);
++
++end:
++ dsi_vc_enable_hs(0, 1);
++
++ *test->result = r;
++ complete(test->completion);
++
++ DSSDBG("test end\n");
++}
++
++static void dsi_do_cmd_set_te(struct omap_display *display, bool enable)
++{
++ dsi.use_te = enable;
++
++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE)
++ return;
++
++ display->ctrl->enable_te(display, enable);
++
++ if (enable) {
++ /* disable LP_RX_TO, so that we can receive TE.
++ * Time to wait for TE is longer than the timer allows */
++ REG_FLD_MOD(DSI_TIMING2, 0, 15, 15); /* LP_RX_TO */
++ } else {
++ REG_FLD_MOD(DSI_TIMING2, 1, 15, 15); /* LP_RX_TO */
++ }
++}
++
++static void dsi_do_cmd_set_update_mode(struct omap_display *display,
++ enum omap_dss_update_mode mode)
++{
++ dsi.update_mode = mode;
++
++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE)
++ return;
++
++ if (mode == OMAP_DSS_UPDATE_AUTO)
++ dsi_start_auto_update(display);
++}
++
++static void dsi_process_cmd_fifo(struct work_struct *work)
++{
++ int len;
++ struct dsi_cmd_item p;
++ unsigned long flags;
++ struct omap_display *display;
++ int exit = 0;
++
++ if (dsi.debug_process)
++ DSSDBGF("");
++
++ if (atomic_cmpxchg(&dsi.cmd_pending, 0, 1) == 1) {
++ if (dsi.debug_process)
++ DSSDBG("cmd pending, skip process\n");
++ return;
++ }
++
++ while (!exit) {
++ spin_lock_irqsave(dsi.cmd_fifo->lock, flags);
++
++ len = __kfifo_get(dsi.cmd_fifo, (unsigned char *)&p,
++ sizeof(p));
++ if (len == 0) {
++ if (dsi.debug_process)
++ DSSDBG("nothing more in fifo, atomic clear\n");
++ atomic_set(&dsi.cmd_pending, 0);
++ spin_unlock_irqrestore(dsi.cmd_fifo->lock, flags);
++ break;
++ }
++
++ spin_unlock_irqrestore(dsi.cmd_fifo->lock, flags);
++
++ BUG_ON(len != sizeof(p));
++
++ display = p.display;
++
++ if (dsi.debug_process)
++ DSSDBG("processing cmd %d\n", p.cmd);
++
++ switch (p.cmd) {
++ case DSI_CMD_UPDATE:
++ if (dsi_do_update(display, &p.u.r)) {
++ if (dsi.debug_process)
++ DSSDBG("async update\n");
++ exit = 1;
++ } else {
++ if (dsi.debug_process)
++ DSSDBG("sync update\n");
++ }
++ break;
++
++ case DSI_CMD_AUTOUPDATE:
++ if (dsi_do_autoupdate(display)) {
++ if (dsi.debug_process)
++ DSSDBG("async autoupdate\n");
++ exit = 1;
++ } else {
++ if (dsi.debug_process)
++ DSSDBG("sync autoupdate\n");
++ }
++ break;
++
++ case DSI_CMD_SYNC:
++ if (dsi.debug_process)
++ DSSDBG("Signaling SYNC done!\n");
++ complete(p.u.sync);
++ break;
++
++ case DSI_CMD_MEM_READ:
++ dsi_do_cmd_mem_read(display, &p.u.mem_read);
++ break;
++
++ case DSI_CMD_TEST:
++ dsi_do_cmd_test(display, &p.u.test);
++ break;
++
++ case DSI_CMD_SET_TE:
++ dsi_do_cmd_set_te(display, p.u.te);
++ break;
++
++ case DSI_CMD_SET_UPDATE_MODE:
++ dsi_do_cmd_set_update_mode(display, p.u.update_mode);
++ break;
++
++ case DSI_CMD_SET_ROTATE:
++ display->ctrl->set_rotate(display, p.u.rotate);
++ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO)
++ dsi.autoupdate_setup = 1;
++ break;
++
++ case DSI_CMD_SET_MIRROR:
++ display->ctrl->set_mirror(display, p.u.mirror);
++ break;
++
++ default:
++ BUG();
++ }
++ }
++
++ if (dsi.debug_process)
++ DSSDBG("exit dsi_process_cmd_fifo\n");
++
++ dsi_signal_fifo_waiters();
++}
++
++static void dsi_push_cmd(struct dsi_cmd_item *p)
++{
++ int ret;
++
++ if (dsi.debug_process)
++ DSSDBGF("");
++
++ while (1) {
++ unsigned long flags;
++ unsigned avail, used;
++
++ spin_lock_irqsave(dsi.cmd_fifo->lock, flags);
++ used = __kfifo_len(dsi.cmd_fifo) / sizeof(struct dsi_cmd_item);
++ avail = DSI_CMD_FIFO_LEN - used;
++
++ if (dsi.debug_process)
++ DSSDBG("%u/%u items left in fifo\n", avail, used);
++
++ if (avail == 0) {
++ if (dsi.debug_process)
++ DSSDBG("cmd fifo full, waiting...\n");
++ spin_unlock_irqrestore(dsi.cmd_fifo->lock, flags);
++ atomic_inc(&dsi.cmd_fifo_full);
++ wait_for_completion(&dsi.cmd_done);
++ if (dsi.debug_process)
++ DSSDBG("cmd fifo not full, woke up\n");
++ continue;
++ }
++
++ ret = __kfifo_put(dsi.cmd_fifo, (unsigned char *)p,
++ sizeof(*p));
++
++ spin_unlock_irqrestore(dsi.cmd_fifo->lock, flags);
++
++ BUG_ON(ret != sizeof(*p));
++
++ break;
++ }
++
++ queue_work(dsi.workqueue, &dsi.process_work);
++}
++
++static void dsi_push_update(struct omap_display *display,
++ int x, int y, int w, int h)
++{
++ struct dsi_cmd_item p;
++
++ p.display = display;
++ p.cmd = DSI_CMD_UPDATE;
++
++ p.u.r.x = x;
++ p.u.r.y = y;
++ p.u.r.w = w;
++ p.u.r.h = h;
++
++ DSSDBG("pushing UPDATE %d,%d %dx%d\n", x, y, w, h);
++
++ dsi_push_cmd(&p);
++}
++
++static void dsi_push_autoupdate(struct omap_display *display)
++{
++ struct dsi_cmd_item p;
++
++ p.display = display;
++ p.cmd = DSI_CMD_AUTOUPDATE;
++
++ dsi_push_cmd(&p);
++}
++
++static void dsi_push_sync(struct omap_display *display,
++ struct completion *sync_comp)
++{
++ struct dsi_cmd_item p;
++
++ p.display = display;
++ p.cmd = DSI_CMD_SYNC;
++ p.u.sync = sync_comp;
++
++ DSSDBG("pushing SYNC\n");
++
++ dsi_push_cmd(&p);
++}
++
++static void dsi_push_mem_read(struct omap_display *display,
++ struct dsi_cmd_mem_read *mem_read)
++{
++ struct dsi_cmd_item p;
++
++ p.display = display;
++ p.cmd = DSI_CMD_MEM_READ;
++ p.u.mem_read = *mem_read;
++
++ DSSDBG("pushing MEM_READ\n");
++
++ dsi_push_cmd(&p);
++}
++
++static void dsi_push_test(struct omap_display *display, int test_num,
++ int *result, struct completion *completion)
++{
++ struct dsi_cmd_item p;
++
++ p.display = display;
++ p.cmd = DSI_CMD_TEST;
++ p.u.test.test_num = test_num;
++ p.u.test.result = result;
++ p.u.test.completion = completion;
++
++ DSSDBG("pushing TEST\n");
++
++ dsi_push_cmd(&p);
++}
++
++static void dsi_push_set_te(struct omap_display *display, bool enable)
++{
++ struct dsi_cmd_item p;
++
++ p.display = display;
++ p.cmd = DSI_CMD_SET_TE;
++ p.u.te = enable;
++
++ DSSDBG("pushing SET_TE\n");
++
++ dsi_push_cmd(&p);
++}
++
++static void dsi_push_set_update_mode(struct omap_display *display,
++ enum omap_dss_update_mode mode)
++{
++ struct dsi_cmd_item p;
++
++ p.display = display;
++ p.cmd = DSI_CMD_SET_UPDATE_MODE;
++ p.u.update_mode = mode;
++
++ DSSDBG("pushing SET_UPDATE_MODE\n");
++
++ dsi_push_cmd(&p);
++}
++
++static void dsi_push_set_rotate(struct omap_display *display, int rotate)
++{
++ struct dsi_cmd_item p;
++
++ p.display = display;
++ p.cmd = DSI_CMD_SET_ROTATE;
++ p.u.rotate = rotate;
++
++ DSSDBG("pushing SET_ROTATE\n");
++
++ dsi_push_cmd(&p);
++}
++
++static void dsi_push_set_mirror(struct omap_display *display, int mirror)
++{
++ struct dsi_cmd_item p;
++
++ p.display = display;
++ p.cmd = DSI_CMD_SET_MIRROR;
++ p.u.mirror = mirror;
++
++ DSSDBG("pushing SET_MIRROR\n");
++
++ dsi_push_cmd(&p);
++}
++
++static int dsi_wait_sync(struct omap_display *display)
++{
++ long wait = msecs_to_jiffies(60000);
++ struct completion compl;
++
++ DSSDBGF("");
++
++ init_completion(&compl);
++ dsi_push_sync(display, &compl);
++
++ DSSDBG("Waiting for SYNC to happen...\n");
++ wait = wait_for_completion_timeout(&compl, wait);
++ DSSDBG("Released from SYNC\n");
++
++ if (wait == 0) {
++ DSSERR("timeout waiting sync\n");
++ return -ETIME;
++ }
++
++ return 0;
++}
++
++
++
++
++
++
++
++
++
++
++
++
++/* Display funcs */
++
++static int dsi_display_init_dispc(struct omap_display *display)
++{
++ int r;
++
++ r = omap_dispc_register_isr(framedone_callback, NULL,
++ DISPC_IRQ_FRAMEDONE);
++ if (r) {
++ DSSERR("can't get FRAMEDONE irq\n");
++ return r;
++ }
++
++ dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT);
++
++ dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_DSI);
++ dispc_enable_fifohandcheck(1);
++
++ dispc_set_tft_data_lines(display->ctrl->pixel_size);
++
++ {
++ struct omap_video_timings timings = {
++ .hsw = 1,
++ .hfp = 1,
++ .hbp = 1,
++ .vsw = 1,
++ .vfp = 0,
++ .vbp = 0,
++ };
++
++ dispc_set_lcd_timings(&timings);
++ }
++
++ return 0;
++}
++
++static void dsi_display_uninit_dispc(struct omap_display *display)
++{
++ omap_dispc_unregister_isr(framedone_callback, NULL,
++ DISPC_IRQ_FRAMEDONE);
++}
++
++static int dsi_display_init_dsi(struct omap_display *display)
++{
++ struct dsi_clock_info cinfo;
++ int r;
++
++ _dsi_print_reset_status();
++
++ r = dsi_pll_init(1, 0);
++ if (r)
++ goto err0;
++
++ r = dsi_pll_calc_ddrfreq(display->hw_config.u.dsi.ddr_clk_hz, &cinfo);
++ if (r)
++ goto err1;
++
++ r = dsi_pll_program(&cinfo);
++ if (r)
++ goto err1;
++
++ DSSDBG("PLL OK\n");
++
++ r = dsi_complexio_init(display);
++ if (r)
++ goto err1;
++
++ _dsi_print_reset_status();
++
++ dsi_proto_timings();
++ dsi_set_lp_clk_divisor();
++
++ if (1)
++ _dsi_print_reset_status();
++
++ r = dsi_proto_config(display);
++ if (r)
++ goto err2;
++
++ /* enable interface */
++ dsi_vc_enable(0, 1);
++ dsi_vc_enable(1, 1);
++ dsi_if_enable(1);
++ dsi_force_tx_stop_mode_io();
++
++ if (display->ctrl && display->ctrl->enable) {
++ r = display->ctrl->enable(display);
++ if (r)
++ goto err3;
++ }
++
++ if (display->panel && display->panel->enable) {
++ r = display->panel->enable(display);
++ if (r)
++ goto err4;
++ }
++
++ /* enable high-speed after initial config */
++ dsi_vc_enable_hs(0, 1);
++
++ return 0;
++err4:
++ if (display->ctrl && display->ctrl->disable)
++ display->ctrl->disable(display);
++err3:
++ dsi_if_enable(0);
++err2:
++ dsi_complexio_uninit();
++err1:
++ dsi_pll_uninit();
++err0:
++ return r;
++}
++
++static void dsi_display_uninit_dsi(struct omap_display *display)
++{
++ if (display->panel && display->panel->disable)
++ display->panel->disable(display);
++ if (display->ctrl && display->ctrl->disable)
++ display->ctrl->disable(display);
++
++ dsi_complexio_uninit();
++ dsi_pll_uninit();
++}
++
++static int dsi_core_init(void)
++{
++ /* Autoidle */
++ REG_FLD_MOD(DSI_SYSCONFIG, 1, 0, 0);
++
++ /* ENWAKEUP */
++ REG_FLD_MOD(DSI_SYSCONFIG, 1, 2, 2);
++
++ /* SIDLEMODE smart-idle */
++ REG_FLD_MOD(DSI_SYSCONFIG, 2, 4, 3);
++
++ _dsi_initialize_irq();
++
++ return 0;
++}
++
++static int dsi_display_enable(struct omap_display *display)
++{
++ int r = 0;
++
++ DSSDBG("dsi_display_enable\n");
++
++ mutex_lock(&dsi.lock);
++
++ if (display->state != OMAP_DSS_DISPLAY_DISABLED) {
++ DSSERR("display already enabled\n");
++ r = -EINVAL;
++ goto err0;
++ }
++
++ enable_clocks(1);
++ dsi_enable_pll_clock(1);
++
++ r = _dsi_reset();
++ if (r)
++ return r;
++
++ dsi_core_init();
++
++ r = dsi_display_init_dispc(display);
++ if (r)
++ goto err1;
++
++ r = dsi_display_init_dsi(display);
++ if (r)
++ goto err2;
++
++ display->state = OMAP_DSS_DISPLAY_ACTIVE;
++
++ if (dsi.use_te)
++ dsi_push_set_te(display, 1);
++
++ dsi_push_set_update_mode(display, dsi.user_update_mode);
++ dsi.target_update_mode = dsi.user_update_mode;
++
++ mutex_unlock(&dsi.lock);
++
++ return dsi_wait_sync(display);
++
++err2:
++ dsi_display_uninit_dispc(display);
++err1:
++ enable_clocks(0);
++ dsi_enable_pll_clock(0);
++err0:
++ mutex_unlock(&dsi.lock);
++ DSSDBG("dsi_display_enable FAILED\n");
++ return r;
++}
++
++static void dsi_display_disable(struct omap_display *display)
++{
++ DSSDBG("dsi_display_disable\n");
++
++ mutex_lock(&dsi.lock);
++
++ if (display->state == OMAP_DSS_DISPLAY_DISABLED ||
++ display->state == OMAP_DSS_DISPLAY_SUSPENDED)
++ goto end;
++
++ if (dsi.target_update_mode != OMAP_DSS_UPDATE_DISABLED) {
++ dsi_push_set_update_mode(display, OMAP_DSS_UPDATE_DISABLED);
++ dsi.target_update_mode = OMAP_DSS_UPDATE_DISABLED;
++ }
++
++ dsi_wait_sync(display);
++
++ display->state = OMAP_DSS_DISPLAY_DISABLED;
++
++ dsi_display_uninit_dispc(display);
++
++ dsi_display_uninit_dsi(display);
++
++ enable_clocks(0);
++ dsi_enable_pll_clock(0);
++end:
++ mutex_unlock(&dsi.lock);
++}
++
++static int dsi_display_suspend(struct omap_display *display)
++{
++ DSSDBG("dsi_display_suspend\n");
++
++ dsi_display_disable(display);
++
++ display->state = OMAP_DSS_DISPLAY_SUSPENDED;
++
++ return 0;
++}
++
++static int dsi_display_resume(struct omap_display *display)
++{
++ DSSDBG("dsi_display_resume\n");
++
++ display->state = OMAP_DSS_DISPLAY_DISABLED;
++ return dsi_display_enable(display);
++}
++
++static int dsi_display_update(struct omap_display *display,
++ u16 x, u16 y, u16 w, u16 h)
++{
++ DSSDBG("dsi_display_update(%d,%d %dx%d)\n", x, y, w, h);
++
++ if (w == 0 || h == 0)
++ return 0;
++
++ mutex_lock(&dsi.lock);
++
++ if (dsi.target_update_mode == OMAP_DSS_UPDATE_MANUAL)
++ dsi_push_update(display, x, y, w, h);
++ /* XXX else return error? */
++
++ mutex_unlock(&dsi.lock);
++
++ return 0;
++}
++
++static int dsi_display_sync(struct omap_display *display)
++{
++ DSSDBGF("");
++ return dsi_wait_sync(display);
++}
++
++static int dsi_display_set_update_mode(struct omap_display *display,
++ enum omap_dss_update_mode mode)
++{
++ DSSDBGF("%d", mode);
++
++ mutex_lock(&dsi.lock);
++
++ if (dsi.target_update_mode != mode) {
++ dsi_push_set_update_mode(display, mode);
++
++ dsi.target_update_mode = mode;
++ dsi.user_update_mode = mode;
++ }
++
++ mutex_unlock(&dsi.lock);
++
++ return dsi_wait_sync(display);
++}
++
++static enum omap_dss_update_mode dsi_display_get_update_mode(
++ struct omap_display *display)
++{
++ return dsi.update_mode;
++}
++
++static int dsi_display_enable_te(struct omap_display *display, bool enable)
++{
++ DSSDBGF("%d", enable);
++
++ if (!display->ctrl->enable_te)
++ return -ENOENT;
++
++ dsi_push_set_te(display, enable);
++
++ return dsi_wait_sync(display);
++}
++
++static int dsi_display_get_te(struct omap_display *display)
++{
++ return dsi.use_te;
++}
++
++
++
++static int dsi_display_set_rotate(struct omap_display *display, u8 rotate)
++{
++ DSSDBGF("%d", rotate);
++
++ if (!display->ctrl->set_rotate || !display->ctrl->get_rotate)
++ return -EINVAL;
++
++ dsi_push_set_rotate(display, rotate);
++
++ return dsi_wait_sync(display);
++}
++
++static u8 dsi_display_get_rotate(struct omap_display *display)
++{
++ if (!display->ctrl->set_rotate || !display->ctrl->get_rotate)
++ return 0;
++
++ return display->ctrl->get_rotate(display);
++}
++
++static int dsi_display_set_mirror(struct omap_display *display, bool mirror)
++{
++ DSSDBGF("%d", mirror);
++
++ if (!display->ctrl->set_mirror || !display->ctrl->get_mirror)
++ return -EINVAL;
++
++ dsi_push_set_mirror(display, mirror);
++
++ return dsi_wait_sync(display);
++}
++
++static bool dsi_display_get_mirror(struct omap_display *display)
++{
++ if (!display->ctrl->set_mirror || !display->ctrl->get_mirror)
++ return 0;
++
++ return display->ctrl->get_mirror(display);
++}
++
++static int dsi_display_run_test(struct omap_display *display, int test_num)
++{
++ long wait = msecs_to_jiffies(60000);
++ struct completion compl;
++ int result;
++
++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE)
++ return -EIO;
++
++ DSSDBGF("%d", test_num);
++
++ init_completion(&compl);
++
++ dsi_push_test(display, test_num, &result, &compl);
++
++ DSSDBG("Waiting for SYNC to happen...\n");
++ wait = wait_for_completion_timeout(&compl, wait);
++ DSSDBG("Released from SYNC\n");
++
++ if (wait == 0) {
++ DSSERR("timeout waiting test sync\n");
++ return -ETIME;
++ }
++
++ return result;
++}
++
++static int dsi_display_memory_read(struct omap_display *display,
++ void *buf, size_t size,
++ u16 x, u16 y, u16 w, u16 h)
++{
++ long wait = msecs_to_jiffies(60000);
++ struct completion compl;
++ struct dsi_cmd_mem_read mem_read;
++ size_t ret_size;
++
++ DSSDBGF("");
++
++ if (!display->ctrl->memory_read)
++ return -EINVAL;
++
++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE)
++ return -EIO;
++
++ init_completion(&compl);
++
++ mem_read.x = x;
++ mem_read.y = y;
++ mem_read.w = w;
++ mem_read.h = h;
++ mem_read.buf = buf;
++ mem_read.size = size;
++ mem_read.ret_size = &ret_size;
++ mem_read.completion = &compl;
++
++ dsi_push_mem_read(display, &mem_read);
++
++ DSSDBG("Waiting for SYNC to happen...\n");
++ wait = wait_for_completion_timeout(&compl, wait);
++ DSSDBG("Released from SYNC\n");
++
++ if (wait == 0) {
++ DSSERR("timeout waiting mem read sync\n");
++ return -ETIME;
++ }
++
++ return ret_size;
++}
++
++static void dsi_configure_overlay(struct omap_overlay *ovl)
++{
++ unsigned low, high, size;
++ enum omap_burst_size burst;
++ enum omap_plane plane = ovl->id;
++
++ burst = OMAP_DSS_BURST_16x32;
++ size = 16 * 32 / 8;
++
++ dispc_set_burst_size(plane, burst);
++
++ high = dispc_get_plane_fifo_size(plane) - size;
++ low = 0;
++ dispc_setup_plane_fifo(plane, low, high);
++}
++
++void dsi_init_display(struct omap_display *display)
++{
++ DSSDBG("DSI init\n");
++
++ display->enable = dsi_display_enable;
++ display->disable = dsi_display_disable;
++ display->suspend = dsi_display_suspend;
++ display->resume = dsi_display_resume;
++ display->update = dsi_display_update;
++ display->sync = dsi_display_sync;
++ display->set_update_mode = dsi_display_set_update_mode;
++ display->get_update_mode = dsi_display_get_update_mode;
++ display->enable_te = dsi_display_enable_te;
++ display->get_te = dsi_display_get_te;
++
++ display->get_rotate = dsi_display_get_rotate;
++ display->set_rotate = dsi_display_set_rotate;
++
++ display->get_mirror = dsi_display_get_mirror;
++ display->set_mirror = dsi_display_set_mirror;
++
++ display->run_test = dsi_display_run_test;
++ display->memory_read = dsi_display_memory_read;
++
++ display->configure_overlay = dsi_configure_overlay;
++
++ display->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
++
++ dsi.vc[0].display = display;
++ dsi.vc[1].display = display;
++}
++
++int dsi_init(void)
++{
++ u32 rev;
++
++ spin_lock_init(&dsi.cmd_lock);
++ dsi.cmd_fifo = kfifo_alloc(
++ DSI_CMD_FIFO_LEN * sizeof(struct dsi_cmd_item),
++ GFP_KERNEL,
++ &dsi.cmd_lock);
++
++ init_completion(&dsi.cmd_done);
++ atomic_set(&dsi.cmd_fifo_full, 0);
++ atomic_set(&dsi.cmd_pending, 0);
++
++ init_completion(&dsi.bta_completion);
++
++ dsi.workqueue = create_singlethread_workqueue("dsi");
++ INIT_WORK(&dsi.framedone_work, framedone_worker);
++ INIT_WORK(&dsi.process_work, dsi_process_cmd_fifo);
++
++ mutex_init(&dsi.lock);
++
++ dsi.target_update_mode = OMAP_DSS_UPDATE_DISABLED;
++ dsi.user_update_mode = OMAP_DSS_UPDATE_DISABLED;
++
++ dsi.base = ioremap(DSI_BASE, DSI_SZ_REGS);
++ if (!dsi.base) {
++ DSSERR("can't ioremap DSI\n");
++ return -ENOMEM;
++ }
++
++ enable_clocks(1);
++
++ rev = dsi_read_reg(DSI_REVISION);
++ printk(KERN_INFO "OMAP DSI rev %d.%d\n",
++ FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
++
++ enable_clocks(0);
++
++ return 0;
++}
++
++void dsi_exit(void)
++{
++ flush_workqueue(dsi.workqueue);
++ destroy_workqueue(dsi.workqueue);
++
++ iounmap(dsi.base);
++
++ kfifo_free(dsi.cmd_fifo);
++
++ DSSDBG("omap_dsi_exit\n");
++}
++
+diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
+new file mode 100644
+index 0000000..adc1f34
+--- /dev/null
++++ b/drivers/video/omap2/dss/dss.c
+@@ -0,0 +1,345 @@
++/*
++ * linux/drivers/video/omap2/dss/dss.c
++ *
++ * Copyright (C) 2009 Nokia Corporation
++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
++ *
++ * Some code and ideas taken from drivers/video/omap/ driver
++ * by Imre Deak.
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published by
++ * the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
++ * more details.
++ *
++ * You should have received a copy of the GNU General Public License along with
++ * this program. If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#define DSS_SUBSYS_NAME "DSS"
++
++#include <linux/kernel.h>
++#include <linux/io.h>
++#include <linux/err.h>
++#include <linux/delay.h>
++#include <linux/interrupt.h>
++#include <linux/seq_file.h>
++
++#include <mach/display.h>
++#include "dss.h"
++
++#define DSS_BASE 0x48050000
++
++#define DSS_SZ_REGS SZ_512
++
++struct dss_reg {
++ u16 idx;
++};
++
++#define DSS_REG(idx) ((const struct dss_reg) { idx })
++
++#define DSS_REVISION DSS_REG(0x0000)
++#define DSS_SYSCONFIG DSS_REG(0x0010)
++#define DSS_SYSSTATUS DSS_REG(0x0014)
++#define DSS_IRQSTATUS DSS_REG(0x0018)
++#define DSS_CONTROL DSS_REG(0x0040)
++#define DSS_SDI_CONTROL DSS_REG(0x0044)
++#define DSS_PLL_CONTROL DSS_REG(0x0048)
++#define DSS_SDI_STATUS DSS_REG(0x005C)
++
++#define REG_GET(idx, start, end) \
++ FLD_GET(dss_read_reg(idx), start, end)
++
++#define REG_FLD_MOD(idx, val, start, end) \
++ dss_write_reg(idx, FLD_MOD(dss_read_reg(idx), val, start, end))
++
++static struct {
++ void __iomem *base;
++
++ u32 ctx[DSS_SZ_REGS / sizeof(u32)];
++} dss;
++
++static int _omap_dss_wait_reset(void);
++
++static inline void dss_write_reg(const struct dss_reg idx, u32 val)
++{
++ __raw_writel(val, dss.base + idx.idx);
++}
++
++static inline u32 dss_read_reg(const struct dss_reg idx)
++{
++ return __raw_readl(dss.base + idx.idx);
++}
++
++#define SR(reg) \
++ dss.ctx[(DSS_##reg).idx / sizeof(u32)] = dss_read_reg(DSS_##reg)
++#define RR(reg) \
++ dss_write_reg(DSS_##reg, dss.ctx[(DSS_##reg).idx / sizeof(u32)])
++
++void dss_save_context(void)
++{
++ if (cpu_is_omap24xx())
++ return;
++
++ SR(SYSCONFIG);
++ SR(CONTROL);
++
++#ifdef CONFIG_OMAP2_DSS_SDI
++ SR(SDI_CONTROL);
++ SR(PLL_CONTROL);
++#endif
++}
++
++void dss_restore_context(void)
++{
++ if (_omap_dss_wait_reset())
++ DSSERR("DSS not coming out of reset after sleep\n");
++
++ RR(SYSCONFIG);
++ RR(CONTROL);
++
++#ifdef CONFIG_OMAP2_DSS_SDI
++ RR(SDI_CONTROL);
++ RR(PLL_CONTROL);
++#endif
++}
++
++#undef SR
++#undef RR
++
++void dss_sdi_init(u8 datapairs)
++{
++ u32 l;
++
++ BUG_ON(datapairs > 3 || datapairs < 1);
++
++ l = dss_read_reg(DSS_SDI_CONTROL);
++ l = FLD_MOD(l, 0xf, 19, 15); /* SDI_PDIV */
++ l = FLD_MOD(l, datapairs-1, 3, 2); /* SDI_PRSEL */
++ l = FLD_MOD(l, 2, 1, 0); /* SDI_BWSEL */
++ dss_write_reg(DSS_SDI_CONTROL, l);
++
++ l = dss_read_reg(DSS_PLL_CONTROL);
++ l = FLD_MOD(l, 0x7, 25, 22); /* SDI_PLL_FREQSEL */
++ l = FLD_MOD(l, 0xb, 16, 11); /* SDI_PLL_REGN */
++ l = FLD_MOD(l, 0xb4, 10, 1); /* SDI_PLL_REGM */
++ dss_write_reg(DSS_PLL_CONTROL, l);
++}
++
++void dss_sdi_enable(void)
++{
++ dispc_pck_free_enable(1);
++
++ /* Reset SDI PLL */
++ REG_FLD_MOD(DSS_PLL_CONTROL, 1, 18, 18); /* SDI_PLL_SYSRESET */
++ udelay(1); /* wait 2x PCLK */
++
++ /* Lock SDI PLL */
++ REG_FLD_MOD(DSS_PLL_CONTROL, 1, 28, 28); /* SDI_PLL_GOBIT */
++
++ /* Waiting for PLL lock request to complete */
++ while (dss_read_reg(DSS_SDI_STATUS) & (1 << 6))
++ ;
++
++ /* Clearing PLL_GO bit */
++ REG_FLD_MOD(DSS_PLL_CONTROL, 0, 28, 28);
++
++ /* Waiting for PLL to lock */
++ while (!(dss_read_reg(DSS_SDI_STATUS) & (1 << 5)))
++ ;
++
++ dispc_lcd_enable_signal(1);
++
++ /* Waiting for SDI reset to complete */
++ while (!(dss_read_reg(DSS_SDI_STATUS) & (1 << 2)))
++ ;
++}
++
++void dss_sdi_disable(void)
++{
++ dispc_lcd_enable_signal(0);
++
++ dispc_pck_free_enable(0);
++
++ /* Reset SDI PLL */
++ REG_FLD_MOD(DSS_PLL_CONTROL, 0, 18, 18); /* SDI_PLL_SYSRESET */
++}
++
++void dss_dump_regs(struct seq_file *s)
++{
++#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dss_read_reg(r))
++
++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ DUMPREG(DSS_REVISION);
++ DUMPREG(DSS_SYSCONFIG);
++ DUMPREG(DSS_SYSSTATUS);
++ DUMPREG(DSS_IRQSTATUS);
++ DUMPREG(DSS_CONTROL);
++ DUMPREG(DSS_SDI_CONTROL);
++ DUMPREG(DSS_PLL_CONTROL);
++ DUMPREG(DSS_SDI_STATUS);
++
++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
++#undef DUMPREG
++}
++
++void dss_select_clk_source(bool dsi, bool dispc)
++{
++ u32 r;
++ r = dss_read_reg(DSS_CONTROL);
++ r = FLD_MOD(r, dsi, 1, 1); /* DSI_CLK_SWITCH */
++ r = FLD_MOD(r, dispc, 0, 0); /* DISPC_CLK_SWITCH */
++ dss_write_reg(DSS_CONTROL, r);
++}
++
++int dss_get_dsi_clk_source(void)
++{
++ return FLD_GET(dss_read_reg(DSS_CONTROL), 1, 1);
++}
++
++int dss_get_dispc_clk_source(void)
++{
++ return FLD_GET(dss_read_reg(DSS_CONTROL), 0, 0);
++}
++
++static irqreturn_t dss_irq_handler_omap2(int irq, void *arg)
++{
++ dispc_irq_handler();
++
++ return IRQ_HANDLED;
++}
++
++static irqreturn_t dss_irq_handler_omap3(int irq, void *arg)
++{
++ u32 irqstatus;
++
++ irqstatus = dss_read_reg(DSS_IRQSTATUS);
++
++ if (irqstatus & (1<<0)) /* DISPC_IRQ */
++ dispc_irq_handler();
++#ifdef CONFIG_OMAP2_DSS_DSI
++ if (irqstatus & (1<<1)) /* DSI_IRQ */
++ dsi_irq_handler();
++#endif
++
++ return IRQ_HANDLED;
++}
++
++static int _omap_dss_wait_reset(void)
++{
++ unsigned timeout = 1000;
++
++ while (REG_GET(DSS_SYSSTATUS, 0, 0) == 0) {
++ udelay(1);
++ if (!--timeout) {
++ DSSERR("soft reset failed\n");
++ return -ENODEV;
++ }
++ }
++
++ return 0;
++}
++
++static int _omap_dss_reset(void)
++{
++ /* Soft reset */
++ REG_FLD_MOD(DSS_SYSCONFIG, 1, 1, 1);
++ return _omap_dss_wait_reset();
++}
++
++void dss_set_venc_output(enum omap_dss_venc_type type)
++{
++ int l = 0;
++
++ if (type == OMAP_DSS_VENC_TYPE_COMPOSITE)
++ l = 0;
++ else if (type == OMAP_DSS_VENC_TYPE_SVIDEO)
++ l = 1;
++ else
++ BUG();
++
++ /* venc out selection. 0 = comp, 1 = svideo */
++ REG_FLD_MOD(DSS_CONTROL, l, 6, 6);
++}
++
++void dss_set_dac_pwrdn_bgz(bool enable)
++{
++ REG_FLD_MOD(DSS_CONTROL, enable, 5, 5); /* DAC Power-Down Control */
++}
++
++int dss_init(bool skip_init)
++{
++ int r;
++ u32 rev;
++
++ dss.base = ioremap(DSS_BASE, DSS_SZ_REGS);
++ if (!dss.base) {
++ DSSERR("can't ioremap DSS\n");
++ r = -ENOMEM;
++ goto fail0;
++ }
++
++ if (!skip_init) {
++ /* We need to wait here a bit, otherwise we sometimes start to
++ * get synclost errors, and after that only power cycle will
++ * restore DSS functionality. I have no idea why this happens.
++ * And we have to wait _before_ resetting the DSS, but after
++ * enabling clocks.
++ */
++ msleep(50);
++
++ _omap_dss_reset();
++
++ }
++ else
++ printk("DSS SKIP RESET\n");
++
++ /* autoidle */
++ REG_FLD_MOD(DSS_SYSCONFIG, 1, 0, 0);
++
++ /* Select DPLL */
++ REG_FLD_MOD(DSS_CONTROL, 0, 0, 0);
++
++#ifdef CONFIG_OMAP2_DSS_VENC
++ REG_FLD_MOD(DSS_CONTROL, 1, 4, 4); /* venc dac demen */
++ REG_FLD_MOD(DSS_CONTROL, 1, 3, 3); /* venc clock 4x enable */
++ REG_FLD_MOD(DSS_CONTROL, 0, 2, 2); /* venc clock mode = normal */
++#endif
++
++ r = request_irq(INT_24XX_DSS_IRQ,
++ cpu_is_omap24xx()
++ ? dss_irq_handler_omap2
++ : dss_irq_handler_omap3,
++ 0, "OMAP DSS", NULL);
++
++ if (r < 0) {
++ DSSERR("omap2 dss: request_irq failed\n");
++ goto fail1;
++ }
++
++ dss_save_context();
++
++ rev = dss_read_reg(DSS_REVISION);
++ printk(KERN_INFO "OMAP DSS rev %d.%d\n",
++ FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
++
++ return 0;
++
++fail1:
++ iounmap(dss.base);
++fail0:
++ return r;
++}
++
++void dss_exit(void)
++{
++ free_irq(INT_24XX_DSS_IRQ, NULL);
++
++ iounmap(dss.base);
++}
++
+diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
+new file mode 100644
+index 0000000..bac5ece
+--- /dev/null
++++ b/drivers/video/omap2/dss/dss.h
+@@ -0,0 +1,331 @@
++/*
++ * linux/drivers/video/omap2/dss/dss.h
++ *
++ * Copyright (C) 2009 Nokia Corporation
++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
++ *
++ * Some code and ideas taken from drivers/video/omap/ driver
++ * by Imre Deak.
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published by
++ * the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
++ * more details.
++ *
++ * You should have received a copy of the GNU General Public License along with
++ * this program. If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#ifndef __OMAP2_DSS_H
++#define __OMAP2_DSS_H
++
++#ifdef CONFIG_OMAP2_DSS_DEBUG_SUPPORT
++#define DEBUG
++#endif
++
++#ifdef DEBUG
++extern unsigned int dss_debug;
++#ifdef DSS_SUBSYS_NAME
++#define DSSDBG(format, ...) \
++ if (dss_debug) \
++ printk(KERN_DEBUG "omapdss " DSS_SUBSYS_NAME ": " format, \
++ ## __VA_ARGS__)
++#else
++#define DSSDBG(format, ...) \
++ if (dss_debug) \
++ printk(KERN_DEBUG "omapdss: " format, ## __VA_ARGS__)
++#endif
++
++#ifdef DSS_SUBSYS_NAME
++#define DSSDBGF(format, ...) \
++ if (dss_debug) \
++ printk(KERN_DEBUG "omapdss " DSS_SUBSYS_NAME \
++ ": %s(" format ")\n", \
++ __func__, \
++ ## __VA_ARGS__)
++#else
++#define DSSDBGF(format, ...) \
++ if (dss_debug) \
++ printk(KERN_DEBUG "omapdss: " \
++ ": %s(" format ")\n", \
++ __func__, \
++ ## __VA_ARGS__)
++#endif
++
++#else /* DEBUG */
++#define DSSDBG(format, ...)
++#define DSSDBGF(format, ...)
++#endif
++
++
++#ifdef DSS_SUBSYS_NAME
++#define DSSERR(format, ...) \
++ printk(KERN_ERR "omapdss " DSS_SUBSYS_NAME " error: " format, \
++ ## __VA_ARGS__)
++#else
++#define DSSERR(format, ...) \
++ printk(KERN_ERR "omapdss error: " format, ## __VA_ARGS__)
++#endif
++
++#ifdef DSS_SUBSYS_NAME
++#define DSSINFO(format, ...) \
++ printk(KERN_INFO "omapdss " DSS_SUBSYS_NAME ": " format, \
++ ## __VA_ARGS__)
++#else
++#define DSSINFO(format, ...) \
++ printk(KERN_INFO "omapdss: " format, ## __VA_ARGS__)
++#endif
++
++#ifdef DSS_SUBSYS_NAME
++#define DSSWARN(format, ...) \
++ printk(KERN_WARNING "omapdss " DSS_SUBSYS_NAME ": " format, \
++ ## __VA_ARGS__)
++#else
++#define DSSWARN(format, ...) \
++ printk(KERN_WARNING "omapdss: " format, ## __VA_ARGS__)
++#endif
++
++/* OMAP TRM gives bitfields as start:end, where start is the higher bit
++ number. For example 7:0 */
++#define FLD_MASK(start, end) (((1 << (start - end + 1)) - 1) << (end))
++#define FLD_VAL(val, start, end) (((val) << end) & FLD_MASK(start, end))
++#define FLD_GET(val, start, end) (((val) & FLD_MASK(start, end)) >> (end))
++#define FLD_MOD(orig, val, start, end) \
++ (((orig) & ~FLD_MASK(start, end)) | FLD_VAL(val, start, end))
++
++#define DISPC_MAX_FCK 173000000
++
++enum omap_burst_size {
++ OMAP_DSS_BURST_4x32 = 0,
++ OMAP_DSS_BURST_8x32 = 1,
++ OMAP_DSS_BURST_16x32 = 2,
++};
++
++enum omap_parallel_interface_mode {
++ OMAP_DSS_PARALLELMODE_BYPASS, /* MIPI DPI */
++ OMAP_DSS_PARALLELMODE_RFBI, /* MIPI DBI */
++ OMAP_DSS_PARALLELMODE_DSI,
++};
++
++enum dss_clock {
++ DSS_CLK_ICK = 1 << 0,
++ DSS_CLK_FCK1 = 1 << 1,
++ DSS_CLK_FCK2 = 1 << 2,
++ DSS_CLK_54M = 1 << 3,
++ DSS_CLK_96M = 1 << 4,
++};
++
++struct dispc_clock_info {
++ /* rates that we get with dividers below */
++ unsigned long fck;
++ unsigned long lck;
++ unsigned long pck;
++
++ /* dividers */
++ u16 fck_div;
++ u16 lck_div;
++ u16 pck_div;
++};
++
++struct dsi_clock_info {
++ /* rates that we get with dividers below */
++ unsigned long fint;
++ unsigned long dsiphy;
++ unsigned long clkin;
++ unsigned long dsi1_pll_fclk;
++ unsigned long dsi2_pll_fclk;
++ unsigned long lck;
++ unsigned long pck;
++
++ /* dividers */
++ u16 regn;
++ u16 regm;
++ u16 regm3;
++ u16 regm4;
++
++ u16 lck_div;
++ u16 pck_div;
++
++ u8 highfreq;
++ bool use_dss2_fck;
++};
++
++struct seq_file;
++struct platform_device;
++
++/* core */
++void dss_clk_enable(enum dss_clock clks);
++void dss_clk_disable(enum dss_clock clks);
++unsigned long dss_clk_get_rate(enum dss_clock clk);
++int dss_need_ctx_restore(void);
++void dss_dump_clocks(struct seq_file *s);
++
++int dss_dsi_power_up(void);
++void dss_dsi_power_down(void);
++
++/* display */
++void dss_init_displays(struct platform_device *pdev);
++void dss_uninit_displays(struct platform_device *pdev);
++int dss_suspend_all_displays(void);
++int dss_resume_all_displays(void);
++struct omap_display *dss_get_display(int no);
++
++/* manager */
++int dss_init_overlay_managers(struct platform_device *pdev);
++void dss_uninit_overlay_managers(struct platform_device *pdev);
++
++/* overlay */
++void dss_init_overlays(struct platform_device *pdev, const char *def_disp_name);
++void dss_uninit_overlays(struct platform_device *pdev);
++int dss_check_overlay(struct omap_overlay *ovl, struct omap_display *display);
++void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr);
++
++/* DSS */
++int dss_init(bool skip_init);
++void dss_exit(void);
++
++void dss_save_context(void);
++void dss_restore_context(void);
++
++void dss_dump_regs(struct seq_file *s);
++
++void dss_sdi_init(u8 datapairs);
++void dss_sdi_enable(void);
++void dss_sdi_disable(void);
++
++void dss_select_clk_source(bool dsi, bool dispc);
++int dss_get_dsi_clk_source(void);
++int dss_get_dispc_clk_source(void);
++void dss_set_venc_output(enum omap_dss_venc_type type);
++void dss_set_dac_pwrdn_bgz(bool enable);
++
++/* SDI */
++int sdi_init(bool skip_init);
++void sdi_exit(void);
++void sdi_init_display(struct omap_display *display);
++
++/* DSI */
++int dsi_init(void);
++void dsi_exit(void);
++
++void dsi_dump_clocks(struct seq_file *s);
++void dsi_dump_regs(struct seq_file *s);
++
++void dsi_save_context(void);
++void dsi_restore_context(void);
++
++void dsi_init_display(struct omap_display *display);
++void dsi_irq_handler(void);
++unsigned long dsi_get_dsi1_pll_rate(void);
++unsigned long dsi_get_dsi2_pll_rate(void);
++int dsi_pll_calc_pck(bool is_tft, unsigned long req_pck,
++ struct dsi_clock_info *cinfo);
++int dsi_pll_program(struct dsi_clock_info *cinfo);
++int dsi_pll_init(bool enable_hsclk, bool enable_hsdiv);
++void dsi_pll_uninit(void);
++
++/* DPI */
++int dpi_init(void);
++void dpi_exit(void);
++void dpi_init_display(struct omap_display *display);
++
++/* DISPC */
++int dispc_init(void);
++void dispc_exit(void);
++void dispc_dump_clocks(struct seq_file *s);
++void dispc_dump_regs(struct seq_file *s);
++void dispc_irq_handler(void);
++void dispc_fake_vsync_irq(void);
++
++void dispc_save_context(void);
++void dispc_restore_context(void);
++
++void dispc_lcd_enable_signal_polarity(bool act_high);
++void dispc_lcd_enable_signal(bool enable);
++void dispc_pck_free_enable(bool enable);
++void dispc_enable_fifohandcheck(bool enable);
++
++void dispc_set_lcd_size(u16 width, u16 height);
++void dispc_set_digit_size(u16 width, u16 height);
++u32 dispc_get_plane_fifo_size(enum omap_plane plane);
++void dispc_setup_plane_fifo(enum omap_plane plane, u32 low, u32 high);
++void dispc_enable_fifomerge(bool enable);
++void dispc_set_burst_size(enum omap_plane plane,
++ enum omap_burst_size burst_size);
++
++void dispc_set_plane_ba0(enum omap_plane plane, u32 paddr);
++void dispc_set_plane_ba1(enum omap_plane plane, u32 paddr);
++void dispc_set_plane_pos(enum omap_plane plane, u16 x, u16 y);
++void dispc_set_plane_size(enum omap_plane plane, u16 width, u16 height);
++
++int dispc_setup_plane(enum omap_plane plane, enum omap_channel channel_out,
++ u32 paddr, u16 screen_width,
++ u16 pos_x, u16 pos_y,
++ u16 width, u16 height,
++ u16 out_width, u16 out_height,
++ enum omap_color_mode color_mode,
++ bool ilace,
++ u8 rotation, bool mirror);
++
++void dispc_go(enum omap_channel channel);
++void dispc_enable_lcd_out(bool enable);
++void dispc_enable_digit_out(bool enable);
++int dispc_enable_plane(enum omap_plane plane, bool enable);
++
++void dispc_set_parallel_interface_mode(enum omap_parallel_interface_mode mode);
++void dispc_set_tft_data_lines(u8 data_lines);
++void dispc_set_lcd_display_type(enum omap_lcd_display_type type);
++void dispc_set_loadmode(enum omap_dss_load_mode mode);
++
++void dispc_set_default_color(enum omap_channel channel, u32 color);
++u32 dispc_get_default_color(enum omap_channel channel);
++void dispc_set_trans_key(enum omap_channel ch,
++ enum omap_dss_color_key_type type,
++ u32 trans_key);
++void dispc_get_trans_key(enum omap_channel ch,
++ enum omap_dss_color_key_type *type,
++ u32 *trans_key);
++void dispc_enable_trans_key(enum omap_channel ch, bool enable);
++bool dispc_trans_key_enabled(enum omap_channel ch);
++
++void dispc_set_lcd_timings(struct omap_video_timings *timings);
++unsigned long dispc_fclk_rate(void);
++unsigned long dispc_pclk_rate(void);
++void dispc_set_pol_freq(struct omap_panel *panel);
++void find_lck_pck_divs(bool is_tft, unsigned long req_pck, unsigned long fck,
++ u16 *lck_div, u16 *pck_div);
++int dispc_calc_clock_div(bool is_tft, unsigned long req_pck,
++ struct dispc_clock_info *cinfo);
++int dispc_set_clock_div(struct dispc_clock_info *cinfo);
++int dispc_get_clock_div(struct dispc_clock_info *cinfo);
++void dispc_set_lcd_divisor(u16 lck_div, u16 pck_div);
++
++void dispc_setup_partial_planes(struct omap_display *display,
++ u16 *x, u16 *y, u16 *w, u16 *h);
++void dispc_draw_partial_planes(struct omap_display *display);
++
++
++/* VENC */
++int venc_init(void);
++void venc_exit(void);
++void venc_dump_regs(struct seq_file *s);
++void venc_init_display(struct omap_display *display);
++
++/* RFBI */
++int rfbi_init(void);
++void rfbi_exit(void);
++void rfbi_dump_regs(struct seq_file *s);
++
++int rfbi_configure(int rfbi_module, int bpp, int lines);
++void rfbi_enable_rfbi(bool enable);
++void rfbi_transfer_area(u16 width, u16 height,
++ void (callback)(void *data), void *data);
++void rfbi_set_timings(int rfbi_module, struct rfbi_timings *t);
++unsigned long rfbi_get_max_tx_rate(void);
++void rfbi_init_display(struct omap_display *display);
++
++#endif
+diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
+new file mode 100644
+index 0000000..b0fee80
+--- /dev/null
++++ b/drivers/video/omap2/dss/manager.c
+@@ -0,0 +1,576 @@
++/*
++ * linux/drivers/video/omap2/dss/manager.c
++ *
++ * Copyright (C) 2009 Nokia Corporation
++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
++ *
++ * Some code and ideas taken from drivers/video/omap/ driver
++ * by Imre Deak.
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published by
++ * the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
++ * more details.
++ *
++ * You should have received a copy of the GNU General Public License along with
++ * this program. If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#define DSS_SUBSYS_NAME "MANAGER"
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++
++#include <mach/display.h>
++
++#include "dss.h"
++
++static int num_managers;
++static struct list_head manager_list;
++
++static ssize_t manager_name_show(struct omap_overlay_manager *mgr, char *buf)
++{
++ return snprintf(buf, PAGE_SIZE, "%s\n", mgr->name);
++}
++
++static ssize_t manager_display_show(struct omap_overlay_manager *mgr, char *buf)
++{
++ return snprintf(buf, PAGE_SIZE, "%s\n",
++ mgr->display ? mgr->display->name : "<none>");
++}
++
++static ssize_t manager_display_store(struct omap_overlay_manager *mgr, const char *buf, size_t size)
++{
++ int r, i;
++ int len = size;
++ struct omap_display *display = NULL;
++
++ if (buf[size-1] == '\n')
++ --len;
++
++ if (len > 0) {
++ for (i = 0; i < omap_dss_get_num_displays(); ++i) {
++ display = dss_get_display(i);
++
++ if (strncmp(buf, display->name, len) == 0)
++ break;
++
++ display = NULL;
++ }
++ }
++
++ if (len > 0 && display == NULL)
++ return -EINVAL;
++
++ if (display)
++ DSSDBG("display %s found\n", display->name);
++
++ if (mgr->display) {
++ r = mgr->unset_display(mgr);
++ if (r) {
++ DSSERR("failed to unset display\n");
++ return r;
++ }
++ }
++
++ if (display) {
++ r = mgr->set_display(mgr, display);
++ if (r) {
++ DSSERR("failed to set manager\n");
++ return r;
++ }
++
++ r = mgr->apply(mgr);
++ if (r) {
++ DSSERR("failed to apply dispc config\n");
++ return r;
++ }
++ }
++
++ return size;
++}
++
++static ssize_t manager_default_color_show(struct omap_overlay_manager *mgr,
++ char *buf)
++{
++ u32 default_color;
++
++ default_color = dispc_get_default_color(mgr->id);
++ return snprintf(buf, PAGE_SIZE, "%d", default_color);
++}
++
++static ssize_t manager_default_color_store(struct omap_overlay_manager *mgr,
++ const char *buf, size_t size)
++{
++ u32 default_color;
++
++ if (sscanf(buf, "%d", &default_color) != 1)
++ return -EINVAL;
++ dispc_set_default_color(mgr->id, default_color);
++
++ return size;
++}
++
++static const char *color_key_type_str[] = {
++ "gfx-destination",
++ "video-source",
++};
++
++static ssize_t manager_color_key_type_show(struct omap_overlay_manager *mgr,
++ char *buf)
++{
++ enum omap_dss_color_key_type key_type;
++
++ dispc_get_trans_key(mgr->id, &key_type, NULL);
++ BUG_ON(key_type >= ARRAY_SIZE(color_key_type_str));
++
++ return snprintf(buf, PAGE_SIZE, "%s\n", color_key_type_str[key_type]);
++}
++
++static ssize_t manager_color_key_type_store(struct omap_overlay_manager *mgr,
++ const char *buf, size_t size)
++{
++ enum omap_dss_color_key_type key_type;
++ u32 key_value;
++
++ for (key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
++ key_type < ARRAY_SIZE(color_key_type_str); key_type++) {
++ if (sysfs_streq(buf, color_key_type_str[key_type]))
++ break;
++ }
++ if (key_type == ARRAY_SIZE(color_key_type_str))
++ return -EINVAL;
++ dispc_get_trans_key(mgr->id, NULL, &key_value);
++ dispc_set_trans_key(mgr->id, key_type, key_value);
++
++ return size;
++}
++
++static ssize_t manager_color_key_value_show(struct omap_overlay_manager *mgr,
++ char *buf)
++{
++ u32 key_value;
++
++ dispc_get_trans_key(mgr->id, NULL, &key_value);
++
++ return snprintf(buf, PAGE_SIZE, "%d\n", key_value);
++}
++
++static ssize_t manager_color_key_value_store(struct omap_overlay_manager *mgr,
++ const char *buf, size_t size)
++{
++ enum omap_dss_color_key_type key_type;
++ u32 key_value;
++
++ if (sscanf(buf, "%d", &key_value) != 1)
++ return -EINVAL;
++ dispc_get_trans_key(mgr->id, &key_type, NULL);
++ dispc_set_trans_key(mgr->id, key_type, key_value);
++
++ return size;
++}
++
++static ssize_t manager_color_key_enabled_show(struct omap_overlay_manager *mgr,
++ char *buf)
++{
++ return snprintf(buf, PAGE_SIZE, "%d\n",
++ dispc_trans_key_enabled(mgr->id));
++}
++
++static ssize_t manager_color_key_enabled_store(struct omap_overlay_manager *mgr,
++ const char *buf, size_t size)
++{
++ int enable;
++
++ if (sscanf(buf, "%d", &enable) != 1)
++ return -EINVAL;
++
++ dispc_enable_trans_key(mgr->id, enable);
++
++ return size;
++}
++
++
++struct manager_attribute {
++ struct attribute attr;
++ ssize_t (*show)(struct omap_overlay_manager *, char *);
++ ssize_t (*store)(struct omap_overlay_manager *, const char *, size_t);
++};
++
++#define MANAGER_ATTR(_name, _mode, _show, _store) \
++ struct manager_attribute manager_attr_##_name = \
++ __ATTR(_name, _mode, _show, _store)
++
++static MANAGER_ATTR(name, S_IRUGO, manager_name_show, NULL);
++static MANAGER_ATTR(display, S_IRUGO|S_IWUSR,
++ manager_display_show, manager_display_store);
++static MANAGER_ATTR(default_color, S_IRUGO|S_IWUSR,
++ manager_default_color_show, manager_default_color_store);
++static MANAGER_ATTR(color_key_type, S_IRUGO|S_IWUSR,
++ manager_color_key_type_show, manager_color_key_type_store);
++static MANAGER_ATTR(color_key_value, S_IRUGO|S_IWUSR,
++ manager_color_key_value_show, manager_color_key_value_store);
++static MANAGER_ATTR(color_key_enabled, S_IRUGO|S_IWUSR,
++ manager_color_key_enabled_show, manager_color_key_enabled_store);
++
++static struct attribute *manager_sysfs_attrs[] = {
++ &manager_attr_name.attr,
++ &manager_attr_display.attr,
++ &manager_attr_default_color.attr,
++ &manager_attr_color_key_type.attr,
++ &manager_attr_color_key_value.attr,
++ &manager_attr_color_key_enabled.attr,
++ NULL
++};
++
++static ssize_t manager_attr_show(struct kobject *kobj, struct attribute *attr, char *buf)
++{
++ struct omap_overlay_manager *manager;
++ struct manager_attribute *manager_attr;
++
++ manager = container_of(kobj, struct omap_overlay_manager, kobj);
++ manager_attr = container_of(attr, struct manager_attribute, attr);
++
++ if (!manager_attr->show)
++ return -ENOENT;
++
++ return manager_attr->show(manager, buf);
++}
++
++static ssize_t manager_attr_store(struct kobject *kobj, struct attribute *attr,
++ const char *buf, size_t size)
++{
++ struct omap_overlay_manager *manager;
++ struct manager_attribute *manager_attr;
++
++ manager = container_of(kobj, struct omap_overlay_manager, kobj);
++ manager_attr = container_of(attr, struct manager_attribute, attr);
++
++ if (!manager_attr->store)
++ return -ENOENT;
++
++ return manager_attr->store(manager, buf, size);
++}
++
++static struct sysfs_ops manager_sysfs_ops = {
++ .show = manager_attr_show,
++ .store = manager_attr_store,
++};
++
++static struct kobj_type manager_ktype = {
++ .sysfs_ops = &manager_sysfs_ops,
++ .default_attrs = manager_sysfs_attrs,
++};
++
++static int omap_dss_set_display(struct omap_overlay_manager *mgr,
++ struct omap_display *display)
++{
++ int i;
++ int r;
++
++ if (display->manager) {
++ DSSERR("display '%s' already has a manager '%s'\n",
++ display->name, display->manager->name);
++ return -EINVAL;
++ }
++
++ if ((mgr->supported_displays & display->type) == 0) {
++ DSSERR("display '%s' does not support manager '%s'\n",
++ display->name, mgr->name);
++ return -EINVAL;
++ }
++
++ for (i = 0; i < mgr->num_overlays; i++) {
++ struct omap_overlay *ovl = mgr->overlays[i];
++
++ if (ovl->manager != mgr || !ovl->info.enabled)
++ continue;
++
++ r = dss_check_overlay(ovl, display);
++ if (r)
++ return r;
++ }
++
++ display->manager = mgr;
++ mgr->display = display;
++
++ return 0;
++}
++
++static int omap_dss_unset_display(struct omap_overlay_manager *mgr)
++{
++ if (!mgr->display) {
++ DSSERR("failed to unset display, display not set.\n");
++ return -EINVAL;
++ }
++
++ mgr->display->manager = NULL;
++ mgr->display = NULL;
++
++ return 0;
++}
++
++
++static int overlay_enabled(struct omap_overlay *ovl)
++{
++ return ovl->info.enabled && ovl->manager && ovl->manager->display;
++}
++
++/* We apply settings to both managers here so that we can use optimizations
++ * like fifomerge. Shadow registers can be changed first and the non-shadowed
++ * should be changed last, at the same time with GO */
++static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
++{
++ int i;
++ int ret = 0;
++ enum omap_dss_update_mode mode;
++ struct omap_display *display;
++ struct omap_overlay *ovl;
++ bool ilace = 0;
++ int outw, outh;
++ int r;
++ int num_planes_enabled = 0;
++
++ DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name);
++
++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ /* Configure normal overlay parameters and disable unused overlays */
++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
++ ovl = omap_dss_get_overlay(i);
++
++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
++ continue;
++
++ if (!overlay_enabled(ovl)) {
++ dispc_enable_plane(ovl->id, 0);
++ continue;
++ }
++
++ display = ovl->manager->display;
++
++ if (dss_check_overlay(ovl, display)) {
++ dispc_enable_plane(ovl->id, 0);
++ continue;
++ }
++
++ ++num_planes_enabled;
++
++ /* On a manual update display, in manual update mode, update()
++ * handles configuring planes */
++ mode = OMAP_DSS_UPDATE_AUTO;
++ if (display->get_update_mode)
++ mode = display->get_update_mode(mgr->display);
++
++ if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE &&
++ mode != OMAP_DSS_UPDATE_AUTO)
++ continue;
++
++ if (display->type == OMAP_DISPLAY_TYPE_VENC)
++ ilace = 1;
++
++ if (ovl->info.out_width == 0)
++ outw = ovl->info.width;
++ else
++ outw = ovl->info.out_width;
++
++ if (ovl->info.out_height == 0)
++ outh = ovl->info.height;
++ else
++ outh = ovl->info.out_height;
++
++ r = dispc_setup_plane(ovl->id, ovl->manager->id,
++ ovl->info.paddr,
++ ovl->info.screen_width,
++ ovl->info.pos_x,
++ ovl->info.pos_y,
++ ovl->info.width,
++ ovl->info.height,
++ outw,
++ outh,
++ ovl->info.color_mode,
++ ilace,
++ ovl->info.rotation,
++ ovl->info.mirror);
++
++ if (r) {
++ DSSERR("dispc_setup_plane failed for ovl %d\n",
++ ovl->id);
++ dispc_enable_plane(ovl->id, 0);
++ continue;
++ }
++
++ dispc_enable_plane(ovl->id, 1);
++ }
++
++ /* Enable fifo merge if possible */
++ dispc_enable_fifomerge(num_planes_enabled == 1);
++
++ /* Go through overlays again. This time we configure fifos. We have to
++ * do this after enabling/disabling fifomerge so that we have correct
++ * knowledge of fifo sizes */
++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
++ ovl = omap_dss_get_overlay(i);
++
++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
++ continue;
++
++ if (!overlay_enabled(ovl)) {
++ continue;
++ }
++
++ ovl->manager->display->configure_overlay(ovl);
++ }
++
++ /* Issue GO for managers */
++ list_for_each_entry(mgr, &manager_list, list) {
++ if (!(mgr->caps & OMAP_DSS_OVL_MGR_CAP_DISPC))
++ continue;
++
++ display = mgr->display;
++
++ if (!display)
++ continue;
++
++ /* We don't need GO with manual update display. LCD iface will
++ * always be turned off after frame, and new settings will
++ * be taken in to use at next update */
++ if (display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
++ continue;
++
++ dispc_go(mgr->id);
++ }
++
++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ return ret;
++}
++
++static void omap_dss_mgr_set_def_color(struct omap_overlay_manager *mgr,
++ u32 color)
++{
++ dispc_set_default_color(mgr->id, color);
++}
++
++static void omap_dss_mgr_set_trans_key(struct omap_overlay_manager *mgr,
++ enum omap_dss_color_key_type type,
++ u32 trans_key)
++{
++ dispc_set_trans_key(mgr->id, type, trans_key);
++}
++
++static void omap_dss_mgr_enable_trans_key(struct omap_overlay_manager *mgr,
++ bool enable)
++{
++ dispc_enable_trans_key(mgr->id, enable);
++}
++
++static void omap_dss_add_overlay_manager(struct omap_overlay_manager *manager)
++{
++ ++num_managers;
++ list_add_tail(&manager->list, &manager_list);
++}
++
++int dss_init_overlay_managers(struct platform_device *pdev)
++{
++ int i, r;
++
++ INIT_LIST_HEAD(&manager_list);
++
++ num_managers = 0;
++
++ for (i = 0; i < 2; ++i) {
++ struct omap_overlay_manager *mgr;
++ mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
++
++ BUG_ON(mgr == NULL);
++
++ switch (i) {
++ case 0:
++ mgr->name = "lcd";
++ mgr->id = OMAP_DSS_CHANNEL_LCD;
++ mgr->supported_displays =
++ OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI |
++ OMAP_DISPLAY_TYPE_SDI | OMAP_DISPLAY_TYPE_DSI;
++ break;
++ case 1:
++ mgr->name = "tv";
++ mgr->id = OMAP_DSS_CHANNEL_DIGIT;
++ mgr->supported_displays = OMAP_DISPLAY_TYPE_VENC;
++ break;
++ }
++
++ mgr->set_display = &omap_dss_set_display,
++ mgr->unset_display = &omap_dss_unset_display,
++ mgr->apply = &omap_dss_mgr_apply,
++ mgr->set_default_color = &omap_dss_mgr_set_def_color,
++ mgr->set_trans_key = &omap_dss_mgr_set_trans_key,
++ mgr->enable_trans_key = &omap_dss_mgr_enable_trans_key,
++ mgr->caps = OMAP_DSS_OVL_MGR_CAP_DISPC,
++
++ dss_overlay_setup_dispc_manager(mgr);
++
++ omap_dss_add_overlay_manager(mgr);
++
++ r = kobject_init_and_add(&mgr->kobj, &manager_ktype,
++ &pdev->dev.kobj, "manager%d", i);
++
++ if (r) {
++ DSSERR("failed to create sysfs file\n");
++ continue;
++ }
++ }
++
++ return 0;
++}
++
++void dss_uninit_overlay_managers(struct platform_device *pdev)
++{
++ struct omap_overlay_manager *mgr;
++
++ while (!list_empty(&manager_list)) {
++ mgr = list_first_entry(&manager_list,
++ struct omap_overlay_manager, list);
++ list_del(&mgr->list);
++ kobject_del(&mgr->kobj);
++ kobject_put(&mgr->kobj);
++ kfree(mgr);
++ }
++
++ num_managers = 0;
++}
++
++int omap_dss_get_num_overlay_managers(void)
++{
++ return num_managers;
++}
++EXPORT_SYMBOL(omap_dss_get_num_overlay_managers);
++
++struct omap_overlay_manager *omap_dss_get_overlay_manager(int num)
++{
++ int i = 0;
++ struct omap_overlay_manager *mgr;
++
++ list_for_each_entry(mgr, &manager_list, list) {
++ if (i++ == num)
++ return mgr;
++ }
++
++ return NULL;
++}
++EXPORT_SYMBOL(omap_dss_get_overlay_manager);
++
++#ifdef L4_EXAMPLE
++static int ovl_mgr_apply_l4(struct omap_overlay_manager *mgr)
++{
++ DSSDBG("omap_dss_mgr_apply_l4(%s)\n", mgr->name);
++
++ return 0;
++}
++#endif
++
+diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
+new file mode 100644
+index 0000000..968edbe
+--- /dev/null
++++ b/drivers/video/omap2/dss/overlay.c
+@@ -0,0 +1,587 @@
++/*
++ * linux/drivers/video/omap2/dss/overlay.c
++ *
++ * Copyright (C) 2009 Nokia Corporation
++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
++ *
++ * Some code and ideas taken from drivers/video/omap/ driver
++ * by Imre Deak.
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published by
++ * the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
++ * more details.
++ *
++ * You should have received a copy of the GNU General Public License along with
++ * this program. If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#define DSS_SUBSYS_NAME "OVERLAY"
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/err.h>
++#include <linux/sysfs.h>
++#include <linux/kobject.h>
++#include <linux/platform_device.h>
++
++#include <mach/display.h>
++
++#include "dss.h"
++
++static int num_overlays;
++static struct list_head overlay_list;
++
++static ssize_t overlay_name_show(struct omap_overlay *ovl, char *buf)
++{
++ return snprintf(buf, PAGE_SIZE, "%s\n", ovl->name);
++}
++
++static ssize_t overlay_manager_show(struct omap_overlay *ovl, char *buf)
++{
++ return snprintf(buf, PAGE_SIZE, "%s\n",
++ ovl->manager ? ovl->manager->name : "<none>");
++}
++
++static ssize_t overlay_manager_store(struct omap_overlay *ovl, const char *buf, size_t size)
++{
++ int i, r;
++ struct omap_overlay_manager *mgr = NULL;
++ int len = size;
++
++ if (buf[size-1] == '\n')
++ --len;
++
++ if (len > 0) {
++ for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
++ mgr = omap_dss_get_overlay_manager(i);
++
++ if (strncmp(buf, mgr->name, len) == 0)
++ break;
++
++ mgr = NULL;
++ }
++ }
++
++ if (len > 0 && mgr == NULL)
++ return -EINVAL;
++
++ if (mgr)
++ DSSDBG("manager %s found\n", mgr->name);
++
++ if (mgr != ovl->manager) {
++ /* detach old manager */
++ if (ovl->manager) {
++ r = ovl->unset_manager(ovl);
++ if (r) {
++ DSSERR("detach failed\n");
++ return r;
++ }
++ }
++
++ if (mgr) {
++ r = ovl->set_manager(ovl, mgr);
++ if (r) {
++ DSSERR("Failed to attach overlay\n");
++ return r;
++ }
++ }
++ }
++
++ if (ovl->manager && (r = ovl->manager->apply(ovl->manager)))
++ return r;
++
++ return size;
++}
++
++static ssize_t overlay_input_size_show(struct omap_overlay *ovl, char *buf)
++{
++ return snprintf(buf, PAGE_SIZE, "%d,%d\n",
++ ovl->info.width, ovl->info.height);
++}
++
++static ssize_t overlay_screen_width_show(struct omap_overlay *ovl, char *buf)
++{
++ return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.screen_width);
++}
++
++static ssize_t overlay_position_show(struct omap_overlay *ovl, char *buf)
++{
++ return snprintf(buf, PAGE_SIZE, "%d,%d\n",
++ ovl->info.pos_x, ovl->info.pos_y);
++}
++
++static ssize_t overlay_position_store(struct omap_overlay *ovl,
++ const char *buf, size_t size)
++{
++ int r;
++ char *last;
++ struct omap_overlay_info info;
++
++ ovl->get_overlay_info(ovl, &info);
++
++ info.pos_x = simple_strtoul(buf, &last, 10);
++ ++last;
++ if (last - buf >= size)
++ return -EINVAL;
++
++ info.pos_y = simple_strtoul(last, &last, 10);
++
++ if ((r = ovl->set_overlay_info(ovl, &info)))
++ return r;
++
++ if (ovl->manager && (r = ovl->manager->apply(ovl->manager)))
++ return r;
++
++ return size;
++}
++
++static ssize_t overlay_output_size_show(struct omap_overlay *ovl, char *buf)
++{
++ return snprintf(buf, PAGE_SIZE, "%d,%d\n",
++ ovl->info.out_width, ovl->info.out_height);
++}
++
++static ssize_t overlay_output_size_store(struct omap_overlay *ovl,
++ const char *buf, size_t size)
++{
++ int r;
++ char *last;
++ struct omap_overlay_info info;
++
++ ovl->get_overlay_info(ovl, &info);
++
++ info.out_width = simple_strtoul(buf, &last, 10);
++ ++last;
++ if (last - buf >= size)
++ return -EINVAL;
++
++ info.out_height = simple_strtoul(last, &last, 10);
++
++ if ((r = ovl->set_overlay_info(ovl, &info)))
++ return r;
++
++ if (ovl->manager && (r = ovl->manager->apply(ovl->manager)))
++ return r;
++
++ return size;
++}
++
++static ssize_t overlay_enabled_show(struct omap_overlay *ovl, char *buf)
++{
++ return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.enabled);
++}
++
++static ssize_t overlay_enabled_store(struct omap_overlay *ovl, const char *buf, size_t size)
++{
++ int r;
++ struct omap_overlay_info info;
++
++ ovl->get_overlay_info(ovl, &info);
++
++ info.enabled = simple_strtoul(buf, NULL, 10);
++
++ if ((r = ovl->set_overlay_info(ovl, &info)))
++ return r;
++
++ if (ovl->manager && (r = ovl->manager->apply(ovl->manager)))
++ return r;
++
++ return size;
++}
++
++struct overlay_attribute {
++ struct attribute attr;
++ ssize_t (*show)(struct omap_overlay *, char *);
++ ssize_t (*store)(struct omap_overlay *, const char *, size_t);
++};
++
++#define OVERLAY_ATTR(_name, _mode, _show, _store) \
++ struct overlay_attribute overlay_attr_##_name = \
++ __ATTR(_name, _mode, _show, _store)
++
++static OVERLAY_ATTR(name, S_IRUGO, overlay_name_show, NULL);
++static OVERLAY_ATTR(manager, S_IRUGO|S_IWUSR,
++ overlay_manager_show, overlay_manager_store);
++static OVERLAY_ATTR(input_size, S_IRUGO, overlay_input_size_show, NULL);
++static OVERLAY_ATTR(screen_width, S_IRUGO, overlay_screen_width_show, NULL);
++static OVERLAY_ATTR(position, S_IRUGO|S_IWUSR,
++ overlay_position_show, overlay_position_store);
++static OVERLAY_ATTR(output_size, S_IRUGO|S_IWUSR,
++ overlay_output_size_show, overlay_output_size_store);
++static OVERLAY_ATTR(enabled, S_IRUGO|S_IWUSR,
++ overlay_enabled_show, overlay_enabled_store);
++
++static struct attribute *overlay_sysfs_attrs[] = {
++ &overlay_attr_name.attr,
++ &overlay_attr_manager.attr,
++ &overlay_attr_input_size.attr,
++ &overlay_attr_screen_width.attr,
++ &overlay_attr_position.attr,
++ &overlay_attr_output_size.attr,
++ &overlay_attr_enabled.attr,
++ NULL
++};
++
++static ssize_t overlay_attr_show(struct kobject *kobj, struct attribute *attr, char *buf)
++{
++ struct omap_overlay *overlay;
++ struct overlay_attribute *overlay_attr;
++
++ overlay = container_of(kobj, struct omap_overlay, kobj);
++ overlay_attr = container_of(attr, struct overlay_attribute, attr);
++
++ if (!overlay_attr->show)
++ return -ENOENT;
++
++ return overlay_attr->show(overlay, buf);
++}
++
++static ssize_t overlay_attr_store(struct kobject *kobj, struct attribute *attr,
++ const char *buf, size_t size)
++{
++ struct omap_overlay *overlay;
++ struct overlay_attribute *overlay_attr;
++
++ overlay = container_of(kobj, struct omap_overlay, kobj);
++ overlay_attr = container_of(attr, struct overlay_attribute, attr);
++
++ if (!overlay_attr->store)
++ return -ENOENT;
++
++ return overlay_attr->store(overlay, buf, size);
++}
++
++static struct sysfs_ops overlay_sysfs_ops = {
++ .show = overlay_attr_show,
++ .store = overlay_attr_store,
++};
++
++static struct kobj_type overlay_ktype = {
++ .sysfs_ops = &overlay_sysfs_ops,
++ .default_attrs = overlay_sysfs_attrs,
++};
++
++/* Check if overlay parameters are compatible with display */
++int dss_check_overlay(struct omap_overlay *ovl, struct omap_display *display)
++{
++ struct omap_overlay_info *info;
++ u16 outw, outh;
++ u16 dw, dh;
++
++ if (!display)
++ return 0;
++
++ if (!ovl->info.enabled)
++ return 0;
++
++ info = &ovl->info;
++
++ display->get_resolution(display, &dw, &dh);
++
++ DSSDBG("check_overlay %d: (%d,%d %dx%d -> %dx%d) disp (%dx%d)\n",
++ ovl->id,
++ info->pos_x, info->pos_y,
++ info->width, info->height,
++ info->out_width, info->out_height,
++ dw, dh);
++
++ if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
++ outw = info->width;
++ outh = info->height;
++ } else {
++ if (info->out_width == 0)
++ outw = info->width;
++ else
++ outw = info->out_width;
++
++ if (info->out_height == 0)
++ outh = info->height;
++ else
++ outh = info->out_height;
++ }
++
++ if (dw < info->pos_x + outw) {
++ DSSDBG("check_overlay failed 1: %d < %d + %d\n",
++ dw, info->pos_x, outw);
++ return -EINVAL;
++ }
++
++ if (dh < info->pos_y + outh) {
++ DSSDBG("check_overlay failed 2: %d < %d + %d\n",
++ dh, info->pos_y, outh);
++ return -EINVAL;
++ }
++
++ if ((ovl->supported_modes & info->color_mode) == 0) {
++ DSSERR("overlay doesn't support mode %d\n", info->color_mode);
++ return -EINVAL;
++ }
++
++ return 0;
++}
++
++static int dss_ovl_set_overlay_info(struct omap_overlay *ovl,
++ struct omap_overlay_info *info)
++{
++ int r;
++ struct omap_overlay_info old_info;
++
++ old_info = ovl->info;
++ ovl->info = *info;
++
++ if (ovl->manager) {
++ r = dss_check_overlay(ovl, ovl->manager->display);
++ if (r) {
++ ovl->info = old_info;
++ return r;
++ }
++ }
++
++ return 0;
++}
++
++static void dss_ovl_get_overlay_info(struct omap_overlay *ovl,
++ struct omap_overlay_info *info)
++{
++ *info = ovl->info;
++}
++
++static int omap_dss_set_manager(struct omap_overlay *ovl,
++ struct omap_overlay_manager *mgr)
++{
++ int r;
++
++ if (ovl->manager) {
++ DSSERR("overlay '%s' already has a manager '%s'\n",
++ ovl->name, ovl->manager->name);
++ }
++
++ r = dss_check_overlay(ovl, mgr->display);
++ if (r)
++ return r;
++
++ ovl->manager = mgr;
++
++ return 0;
++}
++
++static int omap_dss_unset_manager(struct omap_overlay *ovl)
++{
++ if (!ovl->manager) {
++ DSSERR("failed to detach overlay: manager not set\n");
++ return -EINVAL;
++ }
++
++ ovl->manager = NULL;
++
++ return 0;
++}
++
++int omap_dss_get_num_overlays(void)
++{
++ return num_overlays;
++}
++EXPORT_SYMBOL(omap_dss_get_num_overlays);
++
++struct omap_overlay *omap_dss_get_overlay(int num)
++{
++ int i = 0;
++ struct omap_overlay *ovl;
++
++ list_for_each_entry(ovl, &overlay_list, list) {
++ if (i++ == num)
++ return ovl;
++ }
++
++ return NULL;
++}
++EXPORT_SYMBOL(omap_dss_get_overlay);
++
++static void omap_dss_add_overlay(struct omap_overlay *overlay)
++{
++ ++num_overlays;
++ list_add_tail(&overlay->list, &overlay_list);
++}
++
++static struct omap_overlay *dispc_overlays[3];
++
++void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr)
++{
++ mgr->num_overlays = 3;
++ mgr->overlays = dispc_overlays;
++}
++
++void dss_init_overlays(struct platform_device *pdev, const char *def_disp_name)
++{
++ int i, r;
++ struct omap_overlay_manager *lcd_mgr;
++ struct omap_overlay_manager *tv_mgr;
++ struct omap_overlay_manager *def_mgr = NULL;
++
++ INIT_LIST_HEAD(&overlay_list);
++
++ num_overlays = 0;
++
++ for (i = 0; i < 3; ++i) {
++ struct omap_overlay *ovl;
++ ovl = kzalloc(sizeof(*ovl), GFP_KERNEL);
++
++ BUG_ON(ovl == NULL);
++
++ switch (i) {
++ case 0:
++ ovl->name = "gfx";
++ ovl->id = OMAP_DSS_GFX;
++ ovl->supported_modes = OMAP_DSS_COLOR_GFX_OMAP3;
++ ovl->caps = OMAP_DSS_OVL_CAP_DISPC;
++ break;
++ case 1:
++ ovl->name = "vid1";
++ ovl->id = OMAP_DSS_VIDEO1;
++ ovl->supported_modes = OMAP_DSS_COLOR_VID_OMAP3;
++ ovl->caps = OMAP_DSS_OVL_CAP_SCALE |
++ OMAP_DSS_OVL_CAP_DISPC;
++ break;
++ case 2:
++ ovl->name = "vid2";
++ ovl->id = OMAP_DSS_VIDEO2;
++ ovl->supported_modes = OMAP_DSS_COLOR_VID_OMAP3;
++ ovl->caps = OMAP_DSS_OVL_CAP_SCALE |
++ OMAP_DSS_OVL_CAP_DISPC;
++ break;
++ }
++
++ ovl->set_manager = &omap_dss_set_manager;
++ ovl->unset_manager = &omap_dss_unset_manager;
++ ovl->set_overlay_info = &dss_ovl_set_overlay_info;
++ ovl->get_overlay_info = &dss_ovl_get_overlay_info;
++
++ omap_dss_add_overlay(ovl);
++
++ r = kobject_init_and_add(&ovl->kobj, &overlay_ktype,
++ &pdev->dev.kobj, "overlay%d", i);
++
++ if (r) {
++ DSSERR("failed to create sysfs file\n");
++ continue;
++ }
++
++ dispc_overlays[i] = ovl;
++ }
++
++ lcd_mgr = omap_dss_get_overlay_manager(OMAP_DSS_OVL_MGR_LCD);
++ tv_mgr = omap_dss_get_overlay_manager(OMAP_DSS_OVL_MGR_TV);
++
++ if (def_disp_name) {
++ for (i = 0; i < omap_dss_get_num_displays() ; i++) {
++ struct omap_display *display = dss_get_display(i);
++
++ if (strcmp(display->name, def_disp_name) == 0) {
++ if (display->type != OMAP_DISPLAY_TYPE_VENC) {
++ lcd_mgr->set_display(lcd_mgr, display);
++ def_mgr = lcd_mgr;
++ } else {
++ lcd_mgr->set_display(tv_mgr, display);
++ def_mgr = tv_mgr;
++ }
++
++ break;
++ }
++ }
++
++ if (!def_mgr)
++ DSSWARN("default display %s not found\n",
++ def_disp_name);
++ }
++
++ if (def_mgr != lcd_mgr) {
++ /* connect lcd manager to first non-VENC display found */
++ for (i = 0; i < omap_dss_get_num_displays(); i++) {
++ struct omap_display *display = dss_get_display(i);
++ if (display->type != OMAP_DISPLAY_TYPE_VENC) {
++ lcd_mgr->set_display(lcd_mgr, display);
++
++ if (!def_mgr)
++ def_mgr = lcd_mgr;
++
++ break;
++ }
++ }
++ }
++
++ if (def_mgr != tv_mgr) {
++ /* connect tv manager to first VENC display found */
++ for (i = 0; i < omap_dss_get_num_displays(); i++) {
++ struct omap_display *display = dss_get_display(i);
++ if (display->type == OMAP_DISPLAY_TYPE_VENC) {
++ tv_mgr->set_display(tv_mgr, display);
++
++ if (!def_mgr)
++ def_mgr = tv_mgr;
++
++ break;
++ }
++ }
++ }
++
++ /* connect all dispc overlays to def_mgr */
++ if (def_mgr) {
++ for (i = 0; i < 3; i++) {
++ struct omap_overlay *ovl;
++ ovl = omap_dss_get_overlay(i);
++ omap_dss_set_manager(ovl, def_mgr);
++ }
++ }
++
++#ifdef L4_EXAMPLE
++ /* setup L4 overlay as an example */
++ {
++ static struct omap_overlay ovl = {
++ .name = "l4-ovl",
++ .supported_modes = OMAP_DSS_COLOR_RGB24U,
++ .set_manager = &omap_dss_set_manager,
++ .unset_manager = &omap_dss_unset_manager,
++ .setup_input = &omap_dss_setup_overlay_input,
++ .setup_output = &omap_dss_setup_overlay_output,
++ .enable = &omap_dss_enable_overlay,
++ };
++
++ static struct omap_overlay_manager mgr = {
++ .name = "l4",
++ .num_overlays = 1,
++ .overlays = &ovl,
++ .set_display = &omap_dss_set_display,
++ .unset_display = &omap_dss_unset_display,
++ .apply = &ovl_mgr_apply_l4,
++ .supported_displays =
++ OMAP_DISPLAY_TYPE_DBI | OMAP_DISPLAY_TYPE_DSI,
++ };
++
++ omap_dss_add_overlay(&ovl);
++ omap_dss_add_overlay_manager(&mgr);
++ omap_dss_set_manager(&ovl, &mgr);
++ }
++#endif
++}
++
++void dss_uninit_overlays(struct platform_device *pdev)
++{
++ struct omap_overlay *ovl;
++
++ while (!list_empty(&overlay_list)) {
++ ovl = list_first_entry(&overlay_list,
++ struct omap_overlay, list);
++ list_del(&ovl->list);
++ kobject_del(&ovl->kobj);
++ kobject_put(&ovl->kobj);
++ kfree(ovl);
++ }
++
++ num_overlays = 0;
++}
++
+diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c
+new file mode 100644
+index 0000000..3e9ae1e
+--- /dev/null
++++ b/drivers/video/omap2/dss/rfbi.c
+@@ -0,0 +1,1304 @@
++/*
++ * linux/drivers/video/omap2/dss/rfbi.c
++ *
++ * Copyright (C) 2009 Nokia Corporation
++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
++ *
++ * Some code and ideas taken from drivers/video/omap/ driver
++ * by Imre Deak.
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published by
++ * the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
++ * more details.
++ *
++ * You should have received a copy of the GNU General Public License along with
++ * this program. If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#define DSS_SUBSYS_NAME "RFBI"
++
++#include <linux/kernel.h>
++#include <linux/dma-mapping.h>
++#include <linux/vmalloc.h>
++#include <linux/clk.h>
++#include <linux/io.h>
++#include <linux/delay.h>
++#include <linux/kfifo.h>
++#include <linux/ktime.h>
++#include <linux/hrtimer.h>
++#include <linux/seq_file.h>
++
++#include <mach/board.h>
++#include <mach/display.h>
++#include "dss.h"
++
++/*#define MEASURE_PERF*/
++
++#define RFBI_BASE 0x48050800
++
++struct rfbi_reg { u16 idx; };
++
++#define RFBI_REG(idx) ((const struct rfbi_reg) { idx })
++
++#define RFBI_REVISION RFBI_REG(0x0000)
++#define RFBI_SYSCONFIG RFBI_REG(0x0010)
++#define RFBI_SYSSTATUS RFBI_REG(0x0014)
++#define RFBI_CONTROL RFBI_REG(0x0040)
++#define RFBI_PIXEL_CNT RFBI_REG(0x0044)
++#define RFBI_LINE_NUMBER RFBI_REG(0x0048)
++#define RFBI_CMD RFBI_REG(0x004c)
++#define RFBI_PARAM RFBI_REG(0x0050)
++#define RFBI_DATA RFBI_REG(0x0054)
++#define RFBI_READ RFBI_REG(0x0058)
++#define RFBI_STATUS RFBI_REG(0x005c)
++
++#define RFBI_CONFIG(n) RFBI_REG(0x0060 + (n)*0x18)
++#define RFBI_ONOFF_TIME(n) RFBI_REG(0x0064 + (n)*0x18)
++#define RFBI_CYCLE_TIME(n) RFBI_REG(0x0068 + (n)*0x18)
++#define RFBI_DATA_CYCLE1(n) RFBI_REG(0x006c + (n)*0x18)
++#define RFBI_DATA_CYCLE2(n) RFBI_REG(0x0070 + (n)*0x18)
++#define RFBI_DATA_CYCLE3(n) RFBI_REG(0x0074 + (n)*0x18)
++
++#define RFBI_VSYNC_WIDTH RFBI_REG(0x0090)
++#define RFBI_HSYNC_WIDTH RFBI_REG(0x0094)
++
++#define RFBI_CMD_FIFO_LEN_BYTES (16 * sizeof(struct update_param))
++
++#define REG_FLD_MOD(idx, val, start, end) \
++ rfbi_write_reg(idx, FLD_MOD(rfbi_read_reg(idx), val, start, end))
++
++/* To work around an RFBI transfer rate limitation */
++#define OMAP_RFBI_RATE_LIMIT 1
++
++enum omap_rfbi_cycleformat {
++ OMAP_DSS_RFBI_CYCLEFORMAT_1_1 = 0,
++ OMAP_DSS_RFBI_CYCLEFORMAT_2_1 = 1,
++ OMAP_DSS_RFBI_CYCLEFORMAT_3_1 = 2,
++ OMAP_DSS_RFBI_CYCLEFORMAT_3_2 = 3,
++};
++
++enum omap_rfbi_datatype {
++ OMAP_DSS_RFBI_DATATYPE_12 = 0,
++ OMAP_DSS_RFBI_DATATYPE_16 = 1,
++ OMAP_DSS_RFBI_DATATYPE_18 = 2,
++ OMAP_DSS_RFBI_DATATYPE_24 = 3,
++};
++
++enum omap_rfbi_parallelmode {
++ OMAP_DSS_RFBI_PARALLELMODE_8 = 0,
++ OMAP_DSS_RFBI_PARALLELMODE_9 = 1,
++ OMAP_DSS_RFBI_PARALLELMODE_12 = 2,
++ OMAP_DSS_RFBI_PARALLELMODE_16 = 3,
++};
++
++enum update_cmd {
++ RFBI_CMD_UPDATE = 0,
++ RFBI_CMD_SYNC = 1,
++};
++
++static int rfbi_convert_timings(struct rfbi_timings *t);
++static void rfbi_get_clk_info(u32 *clk_period, u32 *max_clk_div);
++static void process_cmd_fifo(void);
++
++static struct {
++ void __iomem *base;
++
++ unsigned long l4_khz;
++
++ enum omap_rfbi_datatype datatype;
++ enum omap_rfbi_parallelmode parallelmode;
++
++ enum omap_rfbi_te_mode te_mode;
++ int te_enabled;
++
++ void (*framedone_callback)(void *data);
++ void *framedone_callback_data;
++
++ struct omap_display *display[2];
++
++ struct kfifo *cmd_fifo;
++ spinlock_t cmd_lock;
++ struct completion cmd_done;
++ atomic_t cmd_fifo_full;
++ atomic_t cmd_pending;
++#ifdef MEASURE_PERF
++ unsigned perf_bytes;
++ ktime_t perf_setup_time;
++ ktime_t perf_start_time;
++#endif
++} rfbi;
++
++struct update_region {
++ u16 x;
++ u16 y;
++ u16 w;
++ u16 h;
++};
++
++struct update_param {
++ u8 rfbi_module;
++ u8 cmd;
++
++ union {
++ struct update_region r;
++ struct completion *sync;
++ } par;
++};
++
++static inline void rfbi_write_reg(const struct rfbi_reg idx, u32 val)
++{
++ __raw_writel(val, rfbi.base + idx.idx);
++}
++
++static inline u32 rfbi_read_reg(const struct rfbi_reg idx)
++{
++ return __raw_readl(rfbi.base + idx.idx);
++}
++
++static void rfbi_enable_clocks(bool enable)
++{
++ if (enable)
++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
++ else
++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
++}
++
++void omap_rfbi_write_command(const void *buf, u32 len)
++{
++ rfbi_enable_clocks(1);
++ switch (rfbi.parallelmode) {
++ case OMAP_DSS_RFBI_PARALLELMODE_8:
++ {
++ const u8 *b = buf;
++ for (; len; len--)
++ rfbi_write_reg(RFBI_CMD, *b++);
++ break;
++ }
++
++ case OMAP_DSS_RFBI_PARALLELMODE_16:
++ {
++ const u16 *w = buf;
++ BUG_ON(len & 1);
++ for (; len; len -= 2)
++ rfbi_write_reg(RFBI_CMD, *w++);
++ break;
++ }
++
++ case OMAP_DSS_RFBI_PARALLELMODE_9:
++ case OMAP_DSS_RFBI_PARALLELMODE_12:
++ default:
++ BUG();
++ }
++ rfbi_enable_clocks(0);
++}
++EXPORT_SYMBOL(omap_rfbi_write_command);
++
++void omap_rfbi_read_data(void *buf, u32 len)
++{
++ rfbi_enable_clocks(1);
++ switch (rfbi.parallelmode) {
++ case OMAP_DSS_RFBI_PARALLELMODE_8:
++ {
++ u8 *b = buf;
++ for (; len; len--) {
++ rfbi_write_reg(RFBI_READ, 0);
++ *b++ = rfbi_read_reg(RFBI_READ);
++ }
++ break;
++ }
++
++ case OMAP_DSS_RFBI_PARALLELMODE_16:
++ {
++ u16 *w = buf;
++ BUG_ON(len & ~1);
++ for (; len; len -= 2) {
++ rfbi_write_reg(RFBI_READ, 0);
++ *w++ = rfbi_read_reg(RFBI_READ);
++ }
++ break;
++ }
++
++ case OMAP_DSS_RFBI_PARALLELMODE_9:
++ case OMAP_DSS_RFBI_PARALLELMODE_12:
++ default:
++ BUG();
++ }
++ rfbi_enable_clocks(0);
++}
++EXPORT_SYMBOL(omap_rfbi_read_data);
++
++void omap_rfbi_write_data(const void *buf, u32 len)
++{
++ rfbi_enable_clocks(1);
++ switch (rfbi.parallelmode) {
++ case OMAP_DSS_RFBI_PARALLELMODE_8:
++ {
++ const u8 *b = buf;
++ for (; len; len--)
++ rfbi_write_reg(RFBI_PARAM, *b++);
++ break;
++ }
++
++ case OMAP_DSS_RFBI_PARALLELMODE_16:
++ {
++ const u16 *w = buf;
++ BUG_ON(len & 1);
++ for (; len; len -= 2)
++ rfbi_write_reg(RFBI_PARAM, *w++);
++ break;
++ }
++
++ case OMAP_DSS_RFBI_PARALLELMODE_9:
++ case OMAP_DSS_RFBI_PARALLELMODE_12:
++ default:
++ BUG();
++
++ }
++ rfbi_enable_clocks(0);
++}
++EXPORT_SYMBOL(omap_rfbi_write_data);
++
++void omap_rfbi_write_pixels(const void __iomem *buf, int scr_width,
++ u16 x, u16 y,
++ u16 w, u16 h)
++{
++ int start_offset = scr_width * y + x;
++ int horiz_offset = scr_width - w;
++ int i;
++
++ rfbi_enable_clocks(1);
++
++ if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_16 &&
++ rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_8) {
++ const u16 __iomem *pd = buf;
++ pd += start_offset;
++
++ for (; h; --h) {
++ for (i = 0; i < w; ++i) {
++ const u8 __iomem *b = (const u8 __iomem *)pd;
++ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+1));
++ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+0));
++ ++pd;
++ }
++ pd += horiz_offset;
++ }
++ } else if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_24 &&
++ rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_8) {
++ const u32 __iomem *pd = buf;
++ pd += start_offset;
++
++ for (; h; --h) {
++ for (i = 0; i < w; ++i) {
++ const u8 __iomem *b = (const u8 __iomem *)pd;
++ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+2));
++ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+1));
++ rfbi_write_reg(RFBI_PARAM, __raw_readb(b+0));
++ ++pd;
++ }
++ pd += horiz_offset;
++ }
++ } else if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_16 &&
++ rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_16) {
++ const u16 __iomem *pd = buf;
++ pd += start_offset;
++
++ for (; h; --h) {
++ for (i = 0; i < w; ++i) {
++ rfbi_write_reg(RFBI_PARAM, __raw_readw(pd));
++ ++pd;
++ }
++ pd += horiz_offset;
++ }
++ } else {
++ BUG();
++ }
++
++ rfbi_enable_clocks(0);
++}
++EXPORT_SYMBOL(omap_rfbi_write_pixels);
++
++#ifdef MEASURE_PERF
++static void perf_mark_setup(void)
++{
++ rfbi.perf_setup_time = ktime_get();
++}
++
++static void perf_mark_start(void)
++{
++ rfbi.perf_start_time = ktime_get();
++}
++
++static void perf_show(const char *name)
++{
++ ktime_t t, setup_time, trans_time;
++ u32 total_bytes;
++ u32 setup_us, trans_us, total_us;
++
++ t = ktime_get();
++
++ setup_time = ktime_sub(rfbi.perf_start_time, rfbi.perf_setup_time);
++ setup_us = (u32)ktime_to_us(setup_time);
++ if (setup_us == 0)
++ setup_us = 1;
++
++ trans_time = ktime_sub(t, rfbi.perf_start_time);
++ trans_us = (u32)ktime_to_us(trans_time);
++ if (trans_us == 0)
++ trans_us = 1;
++
++ total_us = setup_us + trans_us;
++
++ total_bytes = rfbi.perf_bytes;
++
++ DSSINFO("%s update %u us + %u us = %u us (%uHz), %u bytes, "
++ "%u kbytes/sec\n",
++ name,
++ setup_us,
++ trans_us,
++ total_us,
++ 1000*1000 / total_us,
++ total_bytes,
++ total_bytes * 1000 / total_us);
++}
++#else
++#define perf_mark_setup()
++#define perf_mark_start()
++#define perf_show(x)
++#endif
++
++void rfbi_transfer_area(u16 width, u16 height,
++ void (callback)(void *data), void *data)
++{
++ u32 l;
++
++ /*BUG_ON(callback == 0);*/
++ BUG_ON(rfbi.framedone_callback != NULL);
++
++ DSSDBG("rfbi_transfer_area %dx%d\n", width, height);
++
++ dispc_set_lcd_size(width, height);
++
++ dispc_enable_lcd_out(1);
++
++ rfbi.framedone_callback = callback;
++ rfbi.framedone_callback_data = data;
++
++ rfbi_enable_clocks(1);
++
++ rfbi_write_reg(RFBI_PIXEL_CNT, width * height);
++
++ l = rfbi_read_reg(RFBI_CONTROL);
++ l = FLD_MOD(l, 1, 0, 0); /* enable */
++ if (!rfbi.te_enabled)
++ l = FLD_MOD(l, 1, 4, 4); /* ITE */
++
++ perf_mark_start();
++
++ rfbi_write_reg(RFBI_CONTROL, l);
++}
++
++static void framedone_callback(void *data, u32 mask)
++{
++ void (*callback)(void *data);
++
++ DSSDBG("FRAMEDONE\n");
++
++ perf_show("DISPC");
++
++ REG_FLD_MOD(RFBI_CONTROL, 0, 0, 0);
++
++ rfbi_enable_clocks(0);
++
++ callback = rfbi.framedone_callback;
++ rfbi.framedone_callback = NULL;
++
++ /*callback(rfbi.framedone_callback_data);*/
++
++ atomic_set(&rfbi.cmd_pending, 0);
++
++ process_cmd_fifo();
++}
++
++#if 1 /* VERBOSE */
++static void rfbi_print_timings(void)
++{
++ u32 l;
++ u32 time;
++
++ l = rfbi_read_reg(RFBI_CONFIG(0));
++ time = 1000000000 / rfbi.l4_khz;
++ if (l & (1 << 4))
++ time *= 2;
++
++ DSSDBG("Tick time %u ps\n", time);
++ l = rfbi_read_reg(RFBI_ONOFF_TIME(0));
++ DSSDBG("CSONTIME %d, CSOFFTIME %d, WEONTIME %d, WEOFFTIME %d, "
++ "REONTIME %d, REOFFTIME %d\n",
++ l & 0x0f, (l >> 4) & 0x3f, (l >> 10) & 0x0f, (l >> 14) & 0x3f,
++ (l >> 20) & 0x0f, (l >> 24) & 0x3f);
++
++ l = rfbi_read_reg(RFBI_CYCLE_TIME(0));
++ DSSDBG("WECYCLETIME %d, RECYCLETIME %d, CSPULSEWIDTH %d, "
++ "ACCESSTIME %d\n",
++ (l & 0x3f), (l >> 6) & 0x3f, (l >> 12) & 0x3f,
++ (l >> 22) & 0x3f);
++}
++#else
++static void rfbi_print_timings(void) {}
++#endif
++
++
++
++
++static u32 extif_clk_period;
++
++static inline unsigned long round_to_extif_ticks(unsigned long ps, int div)
++{
++ int bus_tick = extif_clk_period * div;
++ return (ps + bus_tick - 1) / bus_tick * bus_tick;
++}
++
++static int calc_reg_timing(struct rfbi_timings *t, int div)
++{
++ t->clk_div = div;
++
++ t->cs_on_time = round_to_extif_ticks(t->cs_on_time, div);
++
++ t->we_on_time = round_to_extif_ticks(t->we_on_time, div);
++ t->we_off_time = round_to_extif_ticks(t->we_off_time, div);
++ t->we_cycle_time = round_to_extif_ticks(t->we_cycle_time, div);
++
++ t->re_on_time = round_to_extif_ticks(t->re_on_time, div);
++ t->re_off_time = round_to_extif_ticks(t->re_off_time, div);
++ t->re_cycle_time = round_to_extif_ticks(t->re_cycle_time, div);
++
++ t->access_time = round_to_extif_ticks(t->access_time, div);
++ t->cs_off_time = round_to_extif_ticks(t->cs_off_time, div);
++ t->cs_pulse_width = round_to_extif_ticks(t->cs_pulse_width, div);
++
++ DSSDBG("[reg]cson %d csoff %d reon %d reoff %d\n",
++ t->cs_on_time, t->cs_off_time, t->re_on_time, t->re_off_time);
++ DSSDBG("[reg]weon %d weoff %d recyc %d wecyc %d\n",
++ t->we_on_time, t->we_off_time, t->re_cycle_time,
++ t->we_cycle_time);
++ DSSDBG("[reg]rdaccess %d cspulse %d\n",
++ t->access_time, t->cs_pulse_width);
++
++ return rfbi_convert_timings(t);
++}
++
++static int calc_extif_timings(struct rfbi_timings *t)
++{
++ u32 max_clk_div;
++ int div;
++
++ rfbi_get_clk_info(&extif_clk_period, &max_clk_div);
++ for (div = 1; div <= max_clk_div; div++) {
++ if (calc_reg_timing(t, div) == 0)
++ break;
++ }
++
++ if (div <= max_clk_div)
++ return 0;
++
++ DSSERR("can't setup timings\n");
++ return -1;
++}
++
++
++void rfbi_set_timings(int rfbi_module, struct rfbi_timings *t)
++{
++ int r;
++
++ if (!t->converted) {
++ r = calc_extif_timings(t);
++ if (r < 0)
++ DSSERR("Failed to calc timings\n");
++ }
++
++ BUG_ON(!t->converted);
++
++ rfbi_enable_clocks(1);
++ rfbi_write_reg(RFBI_ONOFF_TIME(rfbi_module), t->tim[0]);
++ rfbi_write_reg(RFBI_CYCLE_TIME(rfbi_module), t->tim[1]);
++
++ /* TIMEGRANULARITY */
++ REG_FLD_MOD(RFBI_CONFIG(rfbi_module),
++ (t->tim[2] ? 1 : 0), 4, 4);
++
++ rfbi_print_timings();
++ rfbi_enable_clocks(0);
++}
++
++static int ps_to_rfbi_ticks(int time, int div)
++{
++ unsigned long tick_ps;
++ int ret;
++
++ /* Calculate in picosecs to yield more exact results */
++ tick_ps = 1000000000 / (rfbi.l4_khz) * div;
++
++ ret = (time + tick_ps - 1) / tick_ps;
++
++ return ret;
++}
++
++#ifdef OMAP_RFBI_RATE_LIMIT
++unsigned long rfbi_get_max_tx_rate(void)
++{
++ unsigned long l4_rate, dss1_rate;
++ int min_l4_ticks = 0;
++ int i;
++
++ /* According to TI this can't be calculated so make the
++ * adjustments for a couple of known frequencies and warn for
++ * others.
++ */
++ static const struct {
++ unsigned long l4_clk; /* HZ */
++ unsigned long dss1_clk; /* HZ */
++ unsigned long min_l4_ticks;
++ } ftab[] = {
++ { 55, 132, 7, }, /* 7.86 MPix/s */
++ { 110, 110, 12, }, /* 9.16 MPix/s */
++ { 110, 132, 10, }, /* 11 Mpix/s */
++ { 120, 120, 10, }, /* 12 Mpix/s */
++ { 133, 133, 10, }, /* 13.3 Mpix/s */
++ };
++
++ l4_rate = rfbi.l4_khz / 1000;
++ dss1_rate = dss_clk_get_rate(DSS_CLK_FCK1) / 1000000;
++
++ for (i = 0; i < ARRAY_SIZE(ftab); i++) {
++ /* Use a window instead of an exact match, to account
++ * for different DPLL multiplier / divider pairs.
++ */
++ if (abs(ftab[i].l4_clk - l4_rate) < 3 &&
++ abs(ftab[i].dss1_clk - dss1_rate) < 3) {
++ min_l4_ticks = ftab[i].min_l4_ticks;
++ break;
++ }
++ }
++ if (i == ARRAY_SIZE(ftab)) {
++ /* Can't be sure, return anyway the maximum not
++ * rate-limited. This might cause a problem only for the
++ * tearing synchronisation.
++ */
++ DSSERR("can't determine maximum RFBI transfer rate\n");
++ return rfbi.l4_khz * 1000;
++ }
++ return rfbi.l4_khz * 1000 / min_l4_ticks;
++}
++#else
++int rfbi_get_max_tx_rate(void)
++{
++ return rfbi.l4_khz * 1000;
++}
++#endif
++
++static void rfbi_get_clk_info(u32 *clk_period, u32 *max_clk_div)
++{
++ *clk_period = 1000000000 / rfbi.l4_khz;
++ *max_clk_div = 2;
++}
++
++static int rfbi_convert_timings(struct rfbi_timings *t)
++{
++ u32 l;
++ int reon, reoff, weon, weoff, cson, csoff, cs_pulse;
++ int actim, recyc, wecyc;
++ int div = t->clk_div;
++
++ if (div <= 0 || div > 2)
++ return -1;
++
++ /* Make sure that after conversion it still holds that:
++ * weoff > weon, reoff > reon, recyc >= reoff, wecyc >= weoff,
++ * csoff > cson, csoff >= max(weoff, reoff), actim > reon
++ */
++ weon = ps_to_rfbi_ticks(t->we_on_time, div);
++ weoff = ps_to_rfbi_ticks(t->we_off_time, div);
++ if (weoff <= weon)
++ weoff = weon + 1;
++ if (weon > 0x0f)
++ return -1;
++ if (weoff > 0x3f)
++ return -1;
++
++ reon = ps_to_rfbi_ticks(t->re_on_time, div);
++ reoff = ps_to_rfbi_ticks(t->re_off_time, div);
++ if (reoff <= reon)
++ reoff = reon + 1;
++ if (reon > 0x0f)
++ return -1;
++ if (reoff > 0x3f)
++ return -1;
++
++ cson = ps_to_rfbi_ticks(t->cs_on_time, div);
++ csoff = ps_to_rfbi_ticks(t->cs_off_time, div);
++ if (csoff <= cson)
++ csoff = cson + 1;
++ if (csoff < max(weoff, reoff))
++ csoff = max(weoff, reoff);
++ if (cson > 0x0f)
++ return -1;
++ if (csoff > 0x3f)
++ return -1;
++
++ l = cson;
++ l |= csoff << 4;
++ l |= weon << 10;
++ l |= weoff << 14;
++ l |= reon << 20;
++ l |= reoff << 24;
++
++ t->tim[0] = l;
++
++ actim = ps_to_rfbi_ticks(t->access_time, div);
++ if (actim <= reon)
++ actim = reon + 1;
++ if (actim > 0x3f)
++ return -1;
++
++ wecyc = ps_to_rfbi_ticks(t->we_cycle_time, div);
++ if (wecyc < weoff)
++ wecyc = weoff;
++ if (wecyc > 0x3f)
++ return -1;
++
++ recyc = ps_to_rfbi_ticks(t->re_cycle_time, div);
++ if (recyc < reoff)
++ recyc = reoff;
++ if (recyc > 0x3f)
++ return -1;
++
++ cs_pulse = ps_to_rfbi_ticks(t->cs_pulse_width, div);
++ if (cs_pulse > 0x3f)
++ return -1;
++
++ l = wecyc;
++ l |= recyc << 6;
++ l |= cs_pulse << 12;
++ l |= actim << 22;
++
++ t->tim[1] = l;
++
++ t->tim[2] = div - 1;
++
++ t->converted = 1;
++
++ return 0;
++}
++
++/* xxx FIX module selection missing */
++int omap_rfbi_setup_te(enum omap_rfbi_te_mode mode,
++ unsigned hs_pulse_time, unsigned vs_pulse_time,
++ int hs_pol_inv, int vs_pol_inv, int extif_div)
++{
++ int hs, vs;
++ int min;
++ u32 l;
++
++ hs = ps_to_rfbi_ticks(hs_pulse_time, 1);
++ vs = ps_to_rfbi_ticks(vs_pulse_time, 1);
++ if (hs < 2)
++ return -EDOM;
++ if (mode == OMAP_DSS_RFBI_TE_MODE_2)
++ min = 2;
++ else /* OMAP_DSS_RFBI_TE_MODE_1 */
++ min = 4;
++ if (vs < min)
++ return -EDOM;
++ if (vs == hs)
++ return -EINVAL;
++ rfbi.te_mode = mode;
++ DSSDBG("setup_te: mode %d hs %d vs %d hs_inv %d vs_inv %d\n",
++ mode, hs, vs, hs_pol_inv, vs_pol_inv);
++
++ rfbi_enable_clocks(1);
++ rfbi_write_reg(RFBI_HSYNC_WIDTH, hs);
++ rfbi_write_reg(RFBI_VSYNC_WIDTH, vs);
++
++ l = rfbi_read_reg(RFBI_CONFIG(0));
++ if (hs_pol_inv)
++ l &= ~(1 << 21);
++ else
++ l |= 1 << 21;
++ if (vs_pol_inv)
++ l &= ~(1 << 20);
++ else
++ l |= 1 << 20;
++ rfbi_enable_clocks(0);
++
++ return 0;
++}
++EXPORT_SYMBOL(omap_rfbi_setup_te);
++
++/* xxx FIX module selection missing */
++int omap_rfbi_enable_te(bool enable, unsigned line)
++{
++ u32 l;
++
++ DSSDBG("te %d line %d mode %d\n", enable, line, rfbi.te_mode);
++ if (line > (1 << 11) - 1)
++ return -EINVAL;
++
++ rfbi_enable_clocks(1);
++ l = rfbi_read_reg(RFBI_CONFIG(0));
++ l &= ~(0x3 << 2);
++ if (enable) {
++ rfbi.te_enabled = 1;
++ l |= rfbi.te_mode << 2;
++ } else
++ rfbi.te_enabled = 0;
++ rfbi_write_reg(RFBI_CONFIG(0), l);
++ rfbi_write_reg(RFBI_LINE_NUMBER, line);
++ rfbi_enable_clocks(0);
++
++ return 0;
++}
++EXPORT_SYMBOL(omap_rfbi_enable_te);
++
++#if 0
++static void rfbi_enable_config(int enable1, int enable2)
++{
++ u32 l;
++ int cs = 0;
++
++ if (enable1)
++ cs |= 1<<0;
++ if (enable2)
++ cs |= 1<<1;
++
++ rfbi_enable_clocks(1);
++
++ l = rfbi_read_reg(RFBI_CONTROL);
++
++ l = FLD_MOD(l, cs, 3, 2);
++ l = FLD_MOD(l, 0, 1, 1);
++
++ rfbi_write_reg(RFBI_CONTROL, l);
++
++
++ l = rfbi_read_reg(RFBI_CONFIG(0));
++ l = FLD_MOD(l, 0, 3, 2); /* TRIGGERMODE: ITE */
++ /*l |= FLD_VAL(2, 8, 7); */ /* L4FORMAT, 2pix/L4 */
++ /*l |= FLD_VAL(0, 8, 7); */ /* L4FORMAT, 1pix/L4 */
++
++ l = FLD_MOD(l, 0, 16, 16); /* A0POLARITY */
++ l = FLD_MOD(l, 1, 20, 20); /* TE_VSYNC_POLARITY */
++ l = FLD_MOD(l, 1, 21, 21); /* HSYNCPOLARITY */
++
++ l = FLD_MOD(l, OMAP_DSS_RFBI_PARALLELMODE_8, 1, 0);
++ rfbi_write_reg(RFBI_CONFIG(0), l);
++
++ rfbi_enable_clocks(0);
++}
++#endif
++
++int rfbi_configure(int rfbi_module, int bpp, int lines)
++{
++ u32 l;
++ int cycle1 = 0, cycle2 = 0, cycle3 = 0;
++ enum omap_rfbi_cycleformat cycleformat;
++ enum omap_rfbi_datatype datatype;
++ enum omap_rfbi_parallelmode parallelmode;
++
++ switch (bpp) {
++ case 12:
++ datatype = OMAP_DSS_RFBI_DATATYPE_12;
++ break;
++ case 16:
++ datatype = OMAP_DSS_RFBI_DATATYPE_16;
++ break;
++ case 18:
++ datatype = OMAP_DSS_RFBI_DATATYPE_18;
++ break;
++ case 24:
++ datatype = OMAP_DSS_RFBI_DATATYPE_24;
++ break;
++ default:
++ BUG();
++ return 1;
++ }
++ rfbi.datatype = datatype;
++
++ switch (lines) {
++ case 8:
++ parallelmode = OMAP_DSS_RFBI_PARALLELMODE_8;
++ break;
++ case 9:
++ parallelmode = OMAP_DSS_RFBI_PARALLELMODE_9;
++ break;
++ case 12:
++ parallelmode = OMAP_DSS_RFBI_PARALLELMODE_12;
++ break;
++ case 16:
++ parallelmode = OMAP_DSS_RFBI_PARALLELMODE_16;
++ break;
++ default:
++ BUG();
++ return 1;
++ }
++ rfbi.parallelmode = parallelmode;
++
++ if ((bpp % lines) == 0) {
++ switch (bpp / lines) {
++ case 1:
++ cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_1_1;
++ break;
++ case 2:
++ cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_2_1;
++ break;
++ case 3:
++ cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_3_1;
++ break;
++ default:
++ BUG();
++ return 1;
++ }
++ } else if ((2 * bpp % lines) == 0) {
++ if ((2 * bpp / lines) == 3)
++ cycleformat = OMAP_DSS_RFBI_CYCLEFORMAT_3_2;
++ else {
++ BUG();
++ return 1;
++ }
++ } else {
++ BUG();
++ return 1;
++ }
++
++ switch (cycleformat) {
++ case OMAP_DSS_RFBI_CYCLEFORMAT_1_1:
++ cycle1 = lines;
++ break;
++
++ case OMAP_DSS_RFBI_CYCLEFORMAT_2_1:
++ cycle1 = lines;
++ cycle2 = lines;
++ break;
++
++ case OMAP_DSS_RFBI_CYCLEFORMAT_3_1:
++ cycle1 = lines;
++ cycle2 = lines;
++ cycle3 = lines;
++ break;
++
++ case OMAP_DSS_RFBI_CYCLEFORMAT_3_2:
++ cycle1 = lines;
++ cycle2 = (lines / 2) | ((lines / 2) << 16);
++ cycle3 = (lines << 16);
++ break;
++ }
++
++ rfbi_enable_clocks(1);
++
++ REG_FLD_MOD(RFBI_CONTROL, 0, 3, 2); /* clear CS */
++
++ l = 0;
++ l |= FLD_VAL(parallelmode, 1, 0);
++ l |= FLD_VAL(0, 3, 2); /* TRIGGERMODE: ITE */
++ l |= FLD_VAL(0, 4, 4); /* TIMEGRANULARITY */
++ l |= FLD_VAL(datatype, 6, 5);
++ /* l |= FLD_VAL(2, 8, 7); */ /* L4FORMAT, 2pix/L4 */
++ l |= FLD_VAL(0, 8, 7); /* L4FORMAT, 1pix/L4 */
++ l |= FLD_VAL(cycleformat, 10, 9);
++ l |= FLD_VAL(0, 12, 11); /* UNUSEDBITS */
++ l |= FLD_VAL(0, 16, 16); /* A0POLARITY */
++ l |= FLD_VAL(0, 17, 17); /* REPOLARITY */
++ l |= FLD_VAL(0, 18, 18); /* WEPOLARITY */
++ l |= FLD_VAL(0, 19, 19); /* CSPOLARITY */
++ l |= FLD_VAL(1, 20, 20); /* TE_VSYNC_POLARITY */
++ l |= FLD_VAL(1, 21, 21); /* HSYNCPOLARITY */
++ rfbi_write_reg(RFBI_CONFIG(rfbi_module), l);
++
++ rfbi_write_reg(RFBI_DATA_CYCLE1(rfbi_module), cycle1);
++ rfbi_write_reg(RFBI_DATA_CYCLE2(rfbi_module), cycle2);
++ rfbi_write_reg(RFBI_DATA_CYCLE3(rfbi_module), cycle3);
++
++
++ l = rfbi_read_reg(RFBI_CONTROL);
++ l = FLD_MOD(l, rfbi_module+1, 3, 2); /* Select CSx */
++ l = FLD_MOD(l, 0, 1, 1); /* clear bypass */
++ rfbi_write_reg(RFBI_CONTROL, l);
++
++
++ DSSDBG("RFBI config: bpp %d, lines %d, cycles: 0x%x 0x%x 0x%x\n",
++ bpp, lines, cycle1, cycle2, cycle3);
++
++ rfbi_enable_clocks(0);
++
++ return 0;
++}
++EXPORT_SYMBOL(rfbi_configure);
++
++static int rfbi_find_display(struct omap_display *disp)
++{
++ if (disp == rfbi.display[0])
++ return 0;
++
++ if (disp == rfbi.display[1])
++ return 1;
++
++ BUG();
++ return -1;
++}
++
++
++static void signal_fifo_waiters(void)
++{
++ if (atomic_read(&rfbi.cmd_fifo_full) > 0) {
++ /* DSSDBG("SIGNALING: Fifo not full for waiter!\n"); */
++ complete(&rfbi.cmd_done);
++ atomic_dec(&rfbi.cmd_fifo_full);
++ }
++}
++
++/* returns 1 for async op, and 0 for sync op */
++static int do_update(struct omap_display *display, struct update_region *upd)
++{
++ u16 x = upd->x;
++ u16 y = upd->y;
++ u16 w = upd->w;
++ u16 h = upd->h;
++
++ perf_mark_setup();
++
++ if (display->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) {
++ /*display->ctrl->enable_te(display, 1); */
++ dispc_setup_partial_planes(display, &x, &y, &w, &h);
++ }
++
++#ifdef MEASURE_PERF
++ rfbi.perf_bytes = w * h * 2; /* XXX always 16bit */
++#endif
++
++ display->ctrl->setup_update(display, x, y, w, h);
++
++ if (display->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) {
++ rfbi_transfer_area(w, h, NULL, NULL);
++ return 1;
++ } else {
++ struct omap_overlay *ovl;
++ void __iomem *addr;
++ int scr_width;
++
++ ovl = display->manager->overlays[0];
++ scr_width = ovl->info.screen_width;
++ addr = ovl->info.vaddr;
++
++ omap_rfbi_write_pixels(addr, scr_width, x, y, w, h);
++
++ perf_show("L4");
++
++ return 0;
++ }
++}
++
++static void process_cmd_fifo(void)
++{
++ int len;
++ struct update_param p;
++ struct omap_display *display;
++ unsigned long flags;
++
++ if (atomic_inc_return(&rfbi.cmd_pending) != 1)
++ return;
++
++ while (true) {
++ spin_lock_irqsave(rfbi.cmd_fifo->lock, flags);
++
++ len = __kfifo_get(rfbi.cmd_fifo, (unsigned char *)&p,
++ sizeof(struct update_param));
++ if (len == 0) {
++ DSSDBG("nothing more in fifo\n");
++ atomic_set(&rfbi.cmd_pending, 0);
++ spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags);
++ break;
++ }
++
++ /* DSSDBG("fifo full %d\n", rfbi.cmd_fifo_full.counter);*/
++
++ spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags);
++
++ BUG_ON(len != sizeof(struct update_param));
++ BUG_ON(p.rfbi_module > 1);
++
++ display = rfbi.display[p.rfbi_module];
++
++ if (p.cmd == RFBI_CMD_UPDATE) {
++ if (do_update(display, &p.par.r))
++ break; /* async op */
++ } else if (p.cmd == RFBI_CMD_SYNC) {
++ DSSDBG("Signaling SYNC done!\n");
++ complete(p.par.sync);
++ } else
++ BUG();
++ }
++
++ signal_fifo_waiters();
++}
++
++static void rfbi_push_cmd(struct update_param *p)
++{
++ int ret;
++
++ while (1) {
++ unsigned long flags;
++ int available;
++
++ spin_lock_irqsave(rfbi.cmd_fifo->lock, flags);
++ available = RFBI_CMD_FIFO_LEN_BYTES -
++ __kfifo_len(rfbi.cmd_fifo);
++
++/* DSSDBG("%d bytes left in fifo\n", available); */
++ if (available < sizeof(struct update_param)) {
++ DSSDBG("Going to wait because FIFO FULL..\n");
++ spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags);
++ atomic_inc(&rfbi.cmd_fifo_full);
++ wait_for_completion(&rfbi.cmd_done);
++ /*DSSDBG("Woke up because fifo not full anymore\n");*/
++ continue;
++ }
++
++ ret = __kfifo_put(rfbi.cmd_fifo, (unsigned char *)p,
++ sizeof(struct update_param));
++/* DSSDBG("pushed %d bytes\n", ret);*/
++
++ spin_unlock_irqrestore(rfbi.cmd_fifo->lock, flags);
++
++ BUG_ON(ret != sizeof(struct update_param));
++
++ break;
++ }
++}
++
++static void rfbi_push_update(int rfbi_module, int x, int y, int w, int h)
++{
++ struct update_param p;
++
++ p.rfbi_module = rfbi_module;
++ p.cmd = RFBI_CMD_UPDATE;
++
++ p.par.r.x = x;
++ p.par.r.y = y;
++ p.par.r.w = w;
++ p.par.r.h = h;
++
++ DSSDBG("RFBI pushed %d,%d %dx%d\n", x, y, w, h);
++
++ rfbi_push_cmd(&p);
++
++ process_cmd_fifo();
++}
++
++static void rfbi_push_sync(int rfbi_module, struct completion *sync_comp)
++{
++ struct update_param p;
++
++ p.rfbi_module = rfbi_module;
++ p.cmd = RFBI_CMD_SYNC;
++ p.par.sync = sync_comp;
++
++ rfbi_push_cmd(&p);
++
++ DSSDBG("RFBI sync pushed to cmd fifo\n");
++
++ process_cmd_fifo();
++}
++
++void rfbi_dump_regs(struct seq_file *s)
++{
++#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, rfbi_read_reg(r))
++
++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ DUMPREG(RFBI_REVISION);
++ DUMPREG(RFBI_SYSCONFIG);
++ DUMPREG(RFBI_SYSSTATUS);
++ DUMPREG(RFBI_CONTROL);
++ DUMPREG(RFBI_PIXEL_CNT);
++ DUMPREG(RFBI_LINE_NUMBER);
++ DUMPREG(RFBI_CMD);
++ DUMPREG(RFBI_PARAM);
++ DUMPREG(RFBI_DATA);
++ DUMPREG(RFBI_READ);
++ DUMPREG(RFBI_STATUS);
++
++ DUMPREG(RFBI_CONFIG(0));
++ DUMPREG(RFBI_ONOFF_TIME(0));
++ DUMPREG(RFBI_CYCLE_TIME(0));
++ DUMPREG(RFBI_DATA_CYCLE1(0));
++ DUMPREG(RFBI_DATA_CYCLE2(0));
++ DUMPREG(RFBI_DATA_CYCLE3(0));
++
++ DUMPREG(RFBI_CONFIG(1));
++ DUMPREG(RFBI_ONOFF_TIME(1));
++ DUMPREG(RFBI_CYCLE_TIME(1));
++ DUMPREG(RFBI_DATA_CYCLE1(1));
++ DUMPREG(RFBI_DATA_CYCLE2(1));
++ DUMPREG(RFBI_DATA_CYCLE3(1));
++
++ DUMPREG(RFBI_VSYNC_WIDTH);
++ DUMPREG(RFBI_HSYNC_WIDTH);
++
++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
++#undef DUMPREG
++}
++
++int rfbi_init(void)
++{
++ u32 rev;
++ u32 l;
++
++ spin_lock_init(&rfbi.cmd_lock);
++ rfbi.cmd_fifo = kfifo_alloc(RFBI_CMD_FIFO_LEN_BYTES, GFP_KERNEL,
++ &rfbi.cmd_lock);
++ if (IS_ERR(rfbi.cmd_fifo))
++ return -ENOMEM;
++
++ init_completion(&rfbi.cmd_done);
++ atomic_set(&rfbi.cmd_fifo_full, 0);
++ atomic_set(&rfbi.cmd_pending, 0);
++
++ rfbi.base = ioremap(RFBI_BASE, SZ_256);
++ if (!rfbi.base) {
++ DSSERR("can't ioremap RFBI\n");
++ return -ENOMEM;
++ }
++
++ rfbi_enable_clocks(1);
++
++ msleep(10);
++
++ rfbi.l4_khz = dss_clk_get_rate(DSS_CLK_ICK) / 1000;
++
++ /* Enable autoidle and smart-idle */
++ l = rfbi_read_reg(RFBI_SYSCONFIG);
++ l |= (1 << 0) | (2 << 3);
++ rfbi_write_reg(RFBI_SYSCONFIG, l);
++
++ rev = rfbi_read_reg(RFBI_REVISION);
++ printk(KERN_INFO "OMAP RFBI rev %d.%d\n",
++ FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
++
++ rfbi_enable_clocks(0);
++
++ return 0;
++}
++
++void rfbi_exit(void)
++{
++ DSSDBG("rfbi_exit\n");
++
++ kfifo_free(rfbi.cmd_fifo);
++
++ iounmap(rfbi.base);
++}
++
++/* struct omap_display support */
++static int rfbi_display_update(struct omap_display *display,
++ u16 x, u16 y, u16 w, u16 h)
++{
++ int rfbi_module;
++
++ if (w == 0 || h == 0)
++ return 0;
++
++ rfbi_module = rfbi_find_display(display);
++
++ rfbi_push_update(rfbi_module, x, y, w, h);
++
++ return 0;
++}
++
++static int rfbi_display_sync(struct omap_display *display)
++{
++ struct completion sync_comp;
++ int rfbi_module;
++
++ rfbi_module = rfbi_find_display(display);
++
++ init_completion(&sync_comp);
++ rfbi_push_sync(rfbi_module, &sync_comp);
++ DSSDBG("Waiting for SYNC to happen...\n");
++ wait_for_completion(&sync_comp);
++ DSSDBG("Released from SYNC\n");
++ return 0;
++}
++
++static int rfbi_display_enable_te(struct omap_display *display, bool enable)
++{
++ display->ctrl->enable_te(display, enable);
++ return 0;
++}
++
++static int rfbi_display_enable(struct omap_display *display)
++{
++ int r;
++
++ BUG_ON(display->panel == NULL || display->ctrl == NULL);
++
++ r = omap_dispc_register_isr(framedone_callback, NULL,
++ DISPC_IRQ_FRAMEDONE);
++ if (r) {
++ DSSERR("can't get FRAMEDONE irq\n");
++ return r;
++ }
++
++ dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT);
++
++ dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_RFBI);
++
++ dispc_set_tft_data_lines(display->ctrl->pixel_size);
++
++ rfbi_configure(display->hw_config.u.rfbi.channel,
++ display->ctrl->pixel_size,
++ display->hw_config.u.rfbi.data_lines);
++
++ rfbi_set_timings(display->hw_config.u.rfbi.channel,
++ &display->ctrl->timings);
++
++
++ if (display->ctrl && display->ctrl->enable) {
++ r = display->ctrl->enable(display);
++ if (r)
++ goto err;
++ }
++
++ if (display->panel && display->panel->enable) {
++ r = display->panel->enable(display);
++ if (r)
++ goto err;
++ }
++
++ return 0;
++err:
++ return -ENODEV;
++}
++
++static void rfbi_display_disable(struct omap_display *display)
++{
++ display->ctrl->disable(display);
++ omap_dispc_unregister_isr(framedone_callback, NULL,
++ DISPC_IRQ_FRAMEDONE);
++}
++
++void rfbi_init_display(struct omap_display *display)
++{
++ display->enable = rfbi_display_enable;
++ display->disable = rfbi_display_disable;
++ display->update = rfbi_display_update;
++ display->sync = rfbi_display_sync;
++ display->enable_te = rfbi_display_enable_te;
++
++ rfbi.display[display->hw_config.u.rfbi.channel] = display;
++
++ display->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
++}
+diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
+new file mode 100644
+index 0000000..fbff2b2
+--- /dev/null
++++ b/drivers/video/omap2/dss/sdi.c
+@@ -0,0 +1,245 @@
++/*
++ * linux/drivers/video/omap2/dss/sdi.c
++ *
++ * Copyright (C) 2009 Nokia Corporation
++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published by
++ * the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
++ * more details.
++ *
++ * You should have received a copy of the GNU General Public License along with
++ * this program. If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#define DSS_SUBSYS_NAME "SDI"
++
++#include <linux/kernel.h>
++#include <linux/clk.h>
++#include <linux/delay.h>
++#include <linux/err.h>
++
++#include <mach/board.h>
++#include <mach/display.h>
++#include "dss.h"
++
++
++static struct {
++ bool skip_init;
++ bool update_enabled;
++} sdi;
++
++static void sdi_basic_init(void)
++{
++ dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_BYPASS);
++
++ dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT);
++ dispc_set_tft_data_lines(24);
++ dispc_lcd_enable_signal_polarity(1);
++}
++
++static int sdi_display_enable(struct omap_display *display)
++{
++ struct dispc_clock_info cinfo;
++ u16 lck_div, pck_div;
++ unsigned long fck;
++ struct omap_panel *panel = display->panel;
++ unsigned long pck;
++ int r;
++
++ if (display->state != OMAP_DSS_DISPLAY_DISABLED) {
++ DSSERR("display already enabled\n");
++ return -EINVAL;
++ }
++
++ /* In case of skip_init sdi_init has already enabled the clocks */
++ if (!sdi.skip_init)
++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ sdi_basic_init();
++
++ /* 15.5.9.1.2 */
++ panel->config |= OMAP_DSS_LCD_RF | OMAP_DSS_LCD_ONOFF;
++
++ dispc_set_pol_freq(panel);
++
++ if (!sdi.skip_init)
++ r = dispc_calc_clock_div(1, panel->timings.pixel_clock * 1000,
++ &cinfo);
++ else
++ r = dispc_get_clock_div(&cinfo);
++
++ if (r)
++ goto err0;
++
++ fck = cinfo.fck;
++ lck_div = cinfo.lck_div;
++ pck_div = cinfo.pck_div;
++
++ pck = fck / lck_div / pck_div / 1000;
++
++ if (pck != panel->timings.pixel_clock) {
++ DSSWARN("Could not find exact pixel clock. Requested %d kHz, "
++ "got %lu kHz\n",
++ panel->timings.pixel_clock, pck);
++
++ panel->timings.pixel_clock = pck;
++ }
++
++
++ dispc_set_lcd_timings(&panel->timings);
++
++ r = dispc_set_clock_div(&cinfo);
++ if (r)
++ goto err1;
++
++ if (!sdi.skip_init) {
++ dss_sdi_init(display->hw_config.u.sdi.datapairs);
++ dss_sdi_enable();
++ mdelay(2);
++ }
++
++ dispc_enable_lcd_out(1);
++
++ r = panel->enable(display);
++ if (r)
++ goto err2;
++
++ display->state = OMAP_DSS_DISPLAY_ACTIVE;
++
++ sdi.skip_init = 0;
++
++ return 0;
++err2:
++ dispc_enable_lcd_out(0);
++err1:
++err0:
++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
++ return r;
++}
++
++static int sdi_display_resume(struct omap_display *display);
++
++static void sdi_display_disable(struct omap_display *display)
++{
++ if (display->state == OMAP_DSS_DISPLAY_DISABLED)
++ return;
++
++ if (display->state == OMAP_DSS_DISPLAY_SUSPENDED)
++ sdi_display_resume(display);
++
++ display->panel->disable(display);
++
++ dispc_enable_lcd_out(0);
++
++ dss_sdi_disable();
++
++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ display->state = OMAP_DSS_DISPLAY_DISABLED;
++}
++
++static int sdi_display_suspend(struct omap_display *display)
++{
++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE)
++ return -EINVAL;
++
++ if (display->panel->suspend)
++ display->panel->suspend(display);
++
++ dispc_enable_lcd_out(0);
++
++ dss_sdi_disable();
++
++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ display->state = OMAP_DSS_DISPLAY_SUSPENDED;
++
++ return 0;
++}
++
++static int sdi_display_resume(struct omap_display *display)
++{
++ if (display->state != OMAP_DSS_DISPLAY_SUSPENDED)
++ return -EINVAL;
++
++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
++
++ dss_sdi_enable();
++ mdelay(2);
++
++ dispc_enable_lcd_out(1);
++
++ if (display->panel->resume)
++ display->panel->resume(display);
++
++ display->state = OMAP_DSS_DISPLAY_ACTIVE;
++
++ return 0;
++}
++
++static int sdi_display_set_update_mode(struct omap_display *display,
++ enum omap_dss_update_mode mode)
++{
++ if (mode == OMAP_DSS_UPDATE_MANUAL)
++ return -EINVAL;
++
++ if (mode == OMAP_DSS_UPDATE_DISABLED) {
++ dispc_enable_lcd_out(0);
++ sdi.update_enabled = 0;
++ } else {
++ dispc_enable_lcd_out(1);
++ sdi.update_enabled = 1;
++ }
++
++ return 0;
++}
++
++static enum omap_dss_update_mode sdi_display_get_update_mode(
++ struct omap_display *display)
++{
++ return sdi.update_enabled ? OMAP_DSS_UPDATE_AUTO :
++ OMAP_DSS_UPDATE_DISABLED;
++}
++
++static void sdi_get_timings(struct omap_display *display,
++ struct omap_video_timings *timings)
++{
++ *timings = display->panel->timings;
++}
++
++void sdi_init_display(struct omap_display *display)
++{
++ DSSDBG("SDI init\n");
++
++ display->enable = sdi_display_enable;
++ display->disable = sdi_display_disable;
++ display->suspend = sdi_display_suspend;
++ display->resume = sdi_display_resume;
++ display->set_update_mode = sdi_display_set_update_mode;
++ display->get_update_mode = sdi_display_get_update_mode;
++ display->get_timings = sdi_get_timings;
++}
++
++int sdi_init(bool skip_init)
++{
++ /* we store this for first display enable, then clear it */
++ sdi.skip_init = skip_init;
++
++ /*
++ * Enable clocks already here, otherwise there would be a toggle
++ * of them until sdi_display_enable is called.
++ */
++ if (skip_init)
++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
++ return 0;
++}
++
++void sdi_exit(void)
++{
++}
+diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
+new file mode 100644
+index 0000000..aceed9f
+--- /dev/null
++++ b/drivers/video/omap2/dss/venc.c
+@@ -0,0 +1,600 @@
++/*
++ * linux/drivers/video/omap2/dss/venc.c
++ *
++ * Copyright (C) 2009 Nokia Corporation
++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
++ *
++ * VENC settings from TI's DSS driver
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published by
++ * the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but WITHOUT
++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
++ * more details.
++ *
++ * You should have received a copy of the GNU General Public License along with
++ * this program. If not, see <http://www.gnu.org/licenses/>.
++ */
++
++#define DSS_SUBSYS_NAME "VENC"
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/clk.h>
++#include <linux/err.h>
++#include <linux/io.h>
++#include <linux/mutex.h>
++#include <linux/completion.h>
++#include <linux/delay.h>
++#include <linux/string.h>
++
++#include <mach/display.h>
++#include <mach/cpu.h>
++
++#include "dss.h"
++
++#define VENC_BASE 0x48050C00
++
++/* Venc registers */
++#define VENC_REV_ID 0x00
++#define VENC_STATUS 0x04
++#define VENC_F_CONTROL 0x08
++#define VENC_VIDOUT_CTRL 0x10
++#define VENC_SYNC_CTRL 0x14
++#define VENC_LLEN 0x1C
++#define VENC_FLENS 0x20
++#define VENC_HFLTR_CTRL 0x24
++#define VENC_CC_CARR_WSS_CARR 0x28
++#define VENC_C_PHASE 0x2C
++#define VENC_GAIN_U 0x30
++#define VENC_GAIN_V 0x34
++#define VENC_GAIN_Y 0x38
++#define VENC_BLACK_LEVEL 0x3C
++#define VENC_BLANK_LEVEL 0x40
++#define VENC_X_COLOR 0x44
++#define VENC_M_CONTROL 0x48
++#define VENC_BSTAMP_WSS_DATA 0x4C
++#define VENC_S_CARR 0x50
++#define VENC_LINE21 0x54
++#define VENC_LN_SEL 0x58
++#define VENC_L21__WC_CTL 0x5C
++#define VENC_HTRIGGER_VTRIGGER 0x60
++#define VENC_SAVID__EAVID 0x64
++#define VENC_FLEN__FAL 0x68
++#define VENC_LAL__PHASE_RESET 0x6C
++#define VENC_HS_INT_START_STOP_X 0x70
++#define VENC_HS_EXT_START_STOP_X 0x74
++#define VENC_VS_INT_START_X 0x78
++#define VENC_VS_INT_STOP_X__VS_INT_START_Y 0x7C
++#define VENC_VS_INT_STOP_Y__VS_EXT_START_X 0x80
++#define VENC_VS_EXT_STOP_X__VS_EXT_START_Y 0x84
++#define VENC_VS_EXT_STOP_Y 0x88
++#define VENC_AVID_START_STOP_X 0x90
++#define VENC_AVID_START_STOP_Y 0x94
++#define VENC_FID_INT_START_X__FID_INT_START_Y 0xA0
++#define VENC_FID_INT_OFFSET_Y__FID_EXT_START_X 0xA4
++#define VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y 0xA8
++#define VENC_TVDETGP_INT_START_STOP_X 0xB0
++#define VENC_TVDETGP_INT_START_STOP_Y 0xB4
++#define VENC_GEN_CTRL 0xB8
++#define VENC_OUTPUT_CONTROL 0xC4
++#define VENC_DAC_B__DAC_C 0xC8
++
++struct venc_config {
++ u32 f_control;
++ u32 vidout_ctrl;
++ u32 sync_ctrl;
++ u32 llen;
++ u32 flens;
++ u32 hfltr_ctrl;
++ u32 cc_carr_wss_carr;
++ u32 c_phase;
++ u32 gain_u;
++ u32 gain_v;
++ u32 gain_y;
++ u32 black_level;
++ u32 blank_level;
++ u32 x_color;
++ u32 m_control;
++ u32 bstamp_wss_data;
++ u32 s_carr;
++ u32 line21;
++ u32 ln_sel;
++ u32 l21__wc_ctl;
++ u32 htrigger_vtrigger;
++ u32 savid__eavid;
++ u32 flen__fal;
++ u32 lal__phase_reset;
++ u32 hs_int_start_stop_x;
++ u32 hs_ext_start_stop_x;
++ u32 vs_int_start_x;
++ u32 vs_int_stop_x__vs_int_start_y;
++ u32 vs_int_stop_y__vs_ext_start_x;
++ u32 vs_ext_stop_x__vs_ext_start_y;
++ u32 vs_ext_stop_y;
++ u32 avid_start_stop_x;
++ u32 avid_start_stop_y;
++ u32 fid_int_start_x__fid_int_start_y;
++ u32 fid_int_offset_y__fid_ext_start_x;
++ u32 fid_ext_start_y__fid_ext_offset_y;
++ u32 tvdetgp_int_start_stop_x;
++ u32 tvdetgp_int_start_stop_y;
++ u32 gen_ctrl;
++};
++
++/* from TRM */
++static const struct venc_config venc_config_pal_trm = {
++ .f_control = 0,
++ .vidout_ctrl = 1,
++ .sync_ctrl = 0x40,
++ .llen = 0x35F, /* 863 */
++ .flens = 0x270, /* 624 */
++ .hfltr_ctrl = 0,
++ .cc_carr_wss_carr = 0x2F7225ED,
++ .c_phase = 0,
++ .gain_u = 0x111,
++ .gain_v = 0x181,
++ .gain_y = 0x140,
++ .black_level = 0x3B,
++ .blank_level = 0x3B,
++ .x_color = 0x7,
++ .m_control = 0x2,
++ .bstamp_wss_data = 0x3F,
++ .s_carr = 0x2A098ACB,
++ .line21 = 0,
++ .ln_sel = 0x01290015,
++ .l21__wc_ctl = 0x0000F603,
++ .htrigger_vtrigger = 0,
++
++ .savid__eavid = 0x06A70108,
++ .flen__fal = 0x00180270,
++ .lal__phase_reset = 0x00040135,
++ .hs_int_start_stop_x = 0x00880358,
++ .hs_ext_start_stop_x = 0x000F035F,
++ .vs_int_start_x = 0x01A70000,
++ .vs_int_stop_x__vs_int_start_y = 0x000001A7,
++ .vs_int_stop_y__vs_ext_start_x = 0x01AF0000,
++ .vs_ext_stop_x__vs_ext_start_y = 0x000101AF,
++ .vs_ext_stop_y = 0x00000025,
++ .avid_start_stop_x = 0x03530083,
++ .avid_start_stop_y = 0x026C002E,
++ .fid_int_start_x__fid_int_start_y = 0x0001008A,
++ .fid_int_offset_y__fid_ext_start_x = 0x002E0138,
++ .fid_ext_start_y__fid_ext_offset_y = 0x01380001,
++
++ .tvdetgp_int_start_stop_x = 0x00140001,
++ .tvdetgp_int_start_stop_y = 0x00010001,
++ .gen_ctrl = 0x00FF0000,
++};
++
++/* from TRM */
++static const struct venc_config venc_config_ntsc_trm = {
++ .f_control = 0,
++ .vidout_ctrl = 1,
++ .sync_ctrl = 0x8040,
++ .llen = 0x359,
++ .flens = 0x20C,
++ .hfltr_ctrl = 0,
++ .cc_carr_wss_carr = 0x043F2631,
++ .c_phase = 0,
++ .gain_u = 0x102,
++ .gain_v = 0x16C,
++ .gain_y = 0x12F,
++ .black_level = 0x43,
++ .blank_level = 0x38,
++ .x_color = 0x7,
++ .m_control = 0x1,
++ .bstamp_wss_data = 0x38,
++ .s_carr = 0x21F07C1F,
++ .line21 = 0,
++ .ln_sel = 0x01310011,
++ .l21__wc_ctl = 0x0000F003,
++ .htrigger_vtrigger = 0,
++
++ .savid__eavid = 0x069300F4,
++ .flen__fal = 0x0016020C,
++ .lal__phase_reset = 0x00060107,
++ .hs_int_start_stop_x = 0x008E0350,
++ .hs_ext_start_stop_x = 0x000F0359,
++ .vs_int_start_x = 0x01A00000,
++ .vs_int_stop_x__vs_int_start_y = 0x020701A0,
++ .vs_int_stop_y__vs_ext_start_x = 0x01AC0024,
++ .vs_ext_stop_x__vs_ext_start_y = 0x020D01AC,
++ .vs_ext_stop_y = 0x00000006,
++ .avid_start_stop_x = 0x03480078,
++ .avid_start_stop_y = 0x02060024,
++ .fid_int_start_x__fid_int_start_y = 0x0001008A,
++ .fid_int_offset_y__fid_ext_start_x = 0x01AC0106,
++ .fid_ext_start_y__fid_ext_offset_y = 0x01060006,
++
++ .tvdetgp_int_start_stop_x = 0x00140001,
++ .tvdetgp_int_start_stop_y = 0x00010001,
++ .gen_ctrl = 0x00F90000,
++};
++
++static const struct venc_config venc_config_pal_bdghi = {
++ .f_control = 0,
++ .vidout_ctrl = 0,
++ .sync_ctrl = 0,
++ .hfltr_ctrl = 0,
++ .x_color = 0,
++ .line21 = 0,
++ .ln_sel = 21,
++ .htrigger_vtrigger = 0,
++ .tvdetgp_int_start_stop_x = 0x00140001,
++ .tvdetgp_int_start_stop_y = 0x00010001,
++ .gen_ctrl = 0x00FB0000,
++
++ .llen = 864-1,
++ .flens = 625-1,
++ .cc_carr_wss_carr = 0x2F7625ED,
++ .c_phase = 0xDF,
++ .gain_u = 0x111,
++ .gain_v = 0x181,
++ .gain_y = 0x140,
++ .black_level = 0x3e,
++ .blank_level = 0x3e,
++ .m_control = 0<<2 | 1<<1,
++ .bstamp_wss_data = 0x42,
++ .s_carr = 0x2a098acb,
++ .l21__wc_ctl = 0<<13 | 0x16<<8 | 0<<0,
++ .savid__eavid = 0x06A70108,
++ .flen__fal = 23<<16 | 624<<0,
++ .lal__phase_reset = 2<<17 | 310<<0,
++ .hs_int_start_stop_x = 0x00920358,
++ .hs_ext_start_stop_x = 0x000F035F,
++ .vs_int_start_x = 0x1a7<<16,
++ .vs_int_stop_x__vs_int_start_y = 0x000601A7,
++ .vs_int_stop_y__vs_ext_start_x = 0x01AF0036,
++ .vs_ext_stop_x__vs_ext_start_y = 0x27101af,
++ .vs_ext_stop_y = 0x05,
++ .avid_start_stop_x = 0x03530082,
++ .avid_start_stop_y = 0x0270002E,
++ .fid_int_start_x__fid_int_start_y = 0x0005008A,
++ .fid_int_offset_y__fid_ext_start_x = 0x002E0138,
++ .fid_ext_start_y__fid_ext_offset_y = 0x01380005,
++};
++
++const struct omap_video_timings omap_dss_pal_timings = {
++ .x_res = 720,
++ .y_res = 574,
++ .pixel_clock = 26181,
++ .hsw = 32,
++ .hfp = 80,
++ .hbp = 48,
++ .vsw = 7,
++ .vfp = 3,
++ .vbp = 6,
++};
++EXPORT_SYMBOL(omap_dss_pal_timings);
++
++const struct omap_video_timings omap_dss_ntsc_timings = {
++ .x_res = 720,
++ .y_res = 482,
++ .pixel_clock = 22153,
++ .hsw = 32,
++ .hfp = 80,
++ .hbp = 48,
++ .vsw = 10,
++ .vfp = 3,
++ .vbp = 6,
++};
++EXPORT_SYMBOL(omap_dss_ntsc_timings);
++
++static struct {
++ void __iomem *base;
++ struct mutex venc_lock;
++} venc;
++
++static struct omap_panel venc_panel = {
++ .name = "tv-out",
++};
++
++static inline void venc_write_reg(int idx, u32 val)
++{
++ __raw_writel(val, venc.base + idx);
++}
++
++static inline u32 venc_read_reg(int idx)
++{
++ u32 l = __raw_readl(venc.base + idx);
++ return l;
++}
++
++static void venc_write_config(const struct venc_config *config)
++{
++ DSSDBG("write venc conf\n");
++
++ venc_write_reg(VENC_LLEN, config->llen);
++ venc_write_reg(VENC_FLENS, config->flens);
++ venc_write_reg(VENC_CC_CARR_WSS_CARR, config->cc_carr_wss_carr);
++ venc_write_reg(VENC_C_PHASE, config->c_phase);
++ venc_write_reg(VENC_GAIN_U, config->gain_u);
++ venc_write_reg(VENC_GAIN_V, config->gain_v);
++ venc_write_reg(VENC_GAIN_Y, config->gain_y);
++ venc_write_reg(VENC_BLACK_LEVEL, config->black_level);
++ venc_write_reg(VENC_BLANK_LEVEL, config->blank_level);
++ venc_write_reg(VENC_M_CONTROL, config->m_control);
++ venc_write_reg(VENC_BSTAMP_WSS_DATA, config->bstamp_wss_data);
++ venc_write_reg(VENC_S_CARR, config->s_carr);
++ venc_write_reg(VENC_L21__WC_CTL, config->l21__wc_ctl);
++ venc_write_reg(VENC_SAVID__EAVID, config->savid__eavid);
++ venc_write_reg(VENC_FLEN__FAL, config->flen__fal);
++ venc_write_reg(VENC_LAL__PHASE_RESET, config->lal__phase_reset);
++ venc_write_reg(VENC_HS_INT_START_STOP_X, config->hs_int_start_stop_x);
++ venc_write_reg(VENC_HS_EXT_START_STOP_X, config->hs_ext_start_stop_x);
++ venc_write_reg(VENC_VS_INT_START_X, config->vs_int_start_x);
++ venc_write_reg(VENC_VS_INT_STOP_X__VS_INT_START_Y,
++ config->vs_int_stop_x__vs_int_start_y);
++ venc_write_reg(VENC_VS_INT_STOP_Y__VS_EXT_START_X,
++ config->vs_int_stop_y__vs_ext_start_x);
++ venc_write_reg(VENC_VS_EXT_STOP_X__VS_EXT_START_Y,
++ config->vs_ext_stop_x__vs_ext_start_y);
++ venc_write_reg(VENC_VS_EXT_STOP_Y, config->vs_ext_stop_y);
++ venc_write_reg(VENC_AVID_START_STOP_X, config->avid_start_stop_x);
++ venc_write_reg(VENC_AVID_START_STOP_Y, config->avid_start_stop_y);
++ venc_write_reg(VENC_FID_INT_START_X__FID_INT_START_Y,
++ config->fid_int_start_x__fid_int_start_y);
++ venc_write_reg(VENC_FID_INT_OFFSET_Y__FID_EXT_START_X,
++ config->fid_int_offset_y__fid_ext_start_x);
++ venc_write_reg(VENC_FID_EXT_START_Y__FID_EXT_OFFSET_Y,
++ config->fid_ext_start_y__fid_ext_offset_y);
++
++ venc_write_reg(VENC_DAC_B__DAC_C, venc_read_reg(VENC_DAC_B__DAC_C));
++ venc_write_reg(VENC_VIDOUT_CTRL, config->vidout_ctrl);
++ venc_write_reg(VENC_HFLTR_CTRL, config->hfltr_ctrl);
++ venc_write_reg(VENC_X_COLOR, config->x_color);
++ venc_write_reg(VENC_LINE21, config->line21);
++ venc_write_reg(VENC_LN_SEL, config->ln_sel);
++ venc_write_reg(VENC_HTRIGGER_VTRIGGER, config->htrigger_vtrigger);
++ venc_write_reg(VENC_TVDETGP_INT_START_STOP_X,
++ config->tvdetgp_int_start_stop_x);
++ venc_write_reg(VENC_TVDETGP_INT_START_STOP_Y,
++ config->tvdetgp_int_start_stop_y);
++ venc_write_reg(VENC_GEN_CTRL, config->gen_ctrl);
++ venc_write_reg(VENC_F_CONTROL, config->f_control);
++ venc_write_reg(VENC_SYNC_CTRL, config->sync_ctrl);
++}
++
++static void venc_reset(void)
++{
++ int t = 1000;
++
++ venc_write_reg(VENC_F_CONTROL, 1<<8);
++ while (venc_read_reg(VENC_F_CONTROL) & (1<<8)) {
++ if (--t == 0) {
++ DSSERR("Failed to reset venc\n");
++ return;
++ }
++ }
++
++ /* the magical sleep that makes things work */
++ msleep(20);
++}
++
++static void venc_enable_clocks(int enable)
++{
++ if (enable)
++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_54M |
++ DSS_CLK_96M);
++ else
++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1 | DSS_CLK_54M |
++ DSS_CLK_96M);
++}
++
++static const struct venc_config *venc_timings_to_config(
++ struct omap_video_timings *timings)
++{
++ if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0)
++ return &venc_config_pal_trm;
++
++ if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0)
++ return &venc_config_ntsc_trm;
++
++ BUG();
++}
++
++int venc_init(void)
++{
++ u8 rev_id;
++
++ mutex_init(&venc.venc_lock);
++
++ venc_panel.timings = omap_dss_pal_timings;
++
++ venc.base = ioremap(VENC_BASE, SZ_1K);
++ if (!venc.base) {
++ DSSERR("can't ioremap VENC\n");
++ return -ENOMEM;
++ }
++
++ venc_enable_clocks(1);
++
++ rev_id = (u8)(venc_read_reg(VENC_REV_ID) & 0xff);
++ printk(KERN_INFO "OMAP VENC rev %d\n", rev_id);
++
++ venc_enable_clocks(0);
++
++ return 0;
++}
++
++void venc_exit(void)
++{
++ iounmap(venc.base);
++}
++
++static void venc_power_on(struct omap_display *display)
++{
++ venc_enable_clocks(1);
++
++ venc_reset();
++ venc_write_config(venc_timings_to_config(&display->panel->timings));
++
++ dss_set_venc_output(display->hw_config.u.venc.type);
++ dss_set_dac_pwrdn_bgz(1);
++
++ if (display->hw_config.u.venc.type == OMAP_DSS_VENC_TYPE_COMPOSITE) {
++ if (cpu_is_omap24xx())
++ venc_write_reg(VENC_OUTPUT_CONTROL, 0x2);
++ else
++ venc_write_reg(VENC_OUTPUT_CONTROL, 0xa);
++ } else { /* S-Video */
++ venc_write_reg(VENC_OUTPUT_CONTROL, 0xd);
++ }
++
++ dispc_set_digit_size(display->panel->timings.x_res,
++ display->panel->timings.y_res/2);
++
++ if (display->hw_config.panel_enable)
++ display->hw_config.panel_enable(display);
++
++ dispc_enable_digit_out(1);
++}
++
++static void venc_power_off(struct omap_display *display)
++{
++ venc_write_reg(VENC_OUTPUT_CONTROL, 0);
++ dss_set_dac_pwrdn_bgz(0);
++
++ dispc_enable_digit_out(0);
++
++ if (display->hw_config.panel_disable)
++ display->hw_config.panel_disable(display);
++
++ venc_enable_clocks(0);
++}
++
++static int venc_enable_display(struct omap_display *display)
++{
++ int r = 0;
++
++ DSSDBG("venc_enable_display\n");
++
++ mutex_lock(&venc.venc_lock);
++
++ if (display->state != OMAP_DSS_DISPLAY_DISABLED) {
++ r = -EINVAL;
++ goto err;
++ }
++
++ venc_power_on(display);
++
++ display->state = OMAP_DSS_DISPLAY_ACTIVE;
++err:
++ mutex_unlock(&venc.venc_lock);
++
++ return r;
++}
++
++static void venc_disable_display(struct omap_display *display)
++{
++ DSSDBG("venc_disable_display\n");
++
++ mutex_lock(&venc.venc_lock);
++
++ if (display->state == OMAP_DSS_DISPLAY_DISABLED)
++ goto end;
++
++ if (display->state == OMAP_DSS_DISPLAY_SUSPENDED) {
++ /* suspended is the same as disabled with venc */
++ display->state = OMAP_DSS_DISPLAY_DISABLED;
++ goto end;
++ }
++
++ venc_power_off(display);
++
++ display->state = OMAP_DSS_DISPLAY_DISABLED;
++end:
++ mutex_unlock(&venc.venc_lock);
++}
++
++static int venc_display_suspend(struct omap_display *display)
++{
++ int r = 0;
++
++ DSSDBG("venc_display_suspend\n");
++
++ mutex_lock(&venc.venc_lock);
++
++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE) {
++ r = -EINVAL;
++ goto err;
++ }
++
++ venc_power_off(display);
++
++ display->state = OMAP_DSS_DISPLAY_SUSPENDED;
++err:
++ mutex_unlock(&venc.venc_lock);
++
++ return r;
++}
++
++static int venc_display_resume(struct omap_display *display)
++{
++ int r = 0;
++
++ DSSDBG("venc_display_resume\n");
++
++ mutex_lock(&venc.venc_lock);
++
++ if (display->state != OMAP_DSS_DISPLAY_SUSPENDED) {
++ r = -EINVAL;
++ goto err;
++ }
++
++ venc_power_on(display);
++
++ display->state = OMAP_DSS_DISPLAY_ACTIVE;
++err:
++ mutex_unlock(&venc.venc_lock);
++
++ return r;
++}
++
++static void venc_get_timings(struct omap_display *display,
++ struct omap_video_timings *timings)
++{
++ *timings = venc_panel.timings;
++}
++
++static void venc_set_timings(struct omap_display *display,
++ struct omap_video_timings *timings)
++{
++ DSSDBG("venc_set_timings\n");
++ display->panel->timings = *timings;
++ if (display->state == OMAP_DSS_DISPLAY_ACTIVE) {
++ /* turn the venc off and on to get new timings to use */
++ venc_disable_display(display);
++ venc_enable_display(display);
++ }
++}
++
++static int venc_check_timings(struct omap_display *display,
++ struct omap_video_timings *timings)
++{
++ DSSDBG("venc_check_timings\n");
++
++ if (memcmp(&omap_dss_pal_timings, timings, sizeof(*timings)) == 0)
++ return 0;
++
++ if (memcmp(&omap_dss_ntsc_timings, timings, sizeof(*timings)) == 0)
++ return 0;
++
++ return -EINVAL;
++}
++
++void venc_init_display(struct omap_display *display)
++{
++ display->panel = &venc_panel;
++ display->enable = venc_enable_display;
++ display->disable = venc_disable_display;
++ display->suspend = venc_display_suspend;
++ display->resume = venc_display_resume;
++ display->get_timings = venc_get_timings;
++ display->set_timings = venc_set_timings;
++ display->check_timings = venc_check_timings;
++}
+--
+1.6.2.4
+