diff options
Diffstat (limited to 'packages/linux/linux-omap/0004-DSS-New-display-subsystem-driver-for-OMAP2-3.patch')
| -rw-r--r-- | packages/linux/linux-omap/0004-DSS-New-display-subsystem-driver-for-OMAP2-3.patch | 5169 |
1 files changed, 5023 insertions, 146 deletions
diff --git a/packages/linux/linux-omap/0004-DSS-New-display-subsystem-driver-for-OMAP2-3.patch b/packages/linux/linux-omap/0004-DSS-New-display-subsystem-driver-for-OMAP2-3.patch index febfc48c4d..509f34697a 100644 --- a/packages/linux/linux-omap/0004-DSS-New-display-subsystem-driver-for-OMAP2-3.patch +++ b/packages/linux/linux-omap/0004-DSS-New-display-subsystem-driver-for-OMAP2-3.patch @@ -1,32 +1,36 @@ -From 0cd726d12358cfe8d80fc0a309bb0c0732c716f0 Mon Sep 17 00:00:00 2001 +From 5a4331bf757fdec0ceb72bf40f7e46ce5c404e2d Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen <tomi.valkeinen@nokia.com> -Date: Tue, 4 Nov 2008 16:52:12 +0200 +Date: Tue, 11 Nov 2008 13:52:25 +0200 Subject: [PATCH] DSS: New display subsystem driver for OMAP2/3 -DSI, RFBI and VENC are separate patches - Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> --- arch/arm/plat-omap/Kconfig | 2 + arch/arm/plat-omap/Makefile | 2 + - arch/arm/plat-omap/dss/Kconfig | 66 ++ + arch/arm/plat-omap/dss/Kconfig | 66 + arch/arm/plat-omap/dss/Makefile | 6 + - arch/arm/plat-omap/dss/dispc.c | 1667 +++++++++++++++++++++++++++++ - arch/arm/plat-omap/dss/display.c | 781 ++++++++++++++ - arch/arm/plat-omap/dss/dpi.c | 303 ++++++ - arch/arm/plat-omap/dss/dss.c | 547 ++++++++++ - arch/arm/plat-omap/dss/dss.h | 240 +++++ - arch/arm/plat-omap/dss/sdi.c | 154 +++ - arch/arm/plat-omap/include/mach/display.h | 458 ++++++++ - 11 files changed, 4226 insertions(+), 0 deletions(-) + arch/arm/plat-omap/dss/dispc.c | 1720 ++++++++++++++++ + arch/arm/plat-omap/dss/display.c | 775 ++++++++ + arch/arm/plat-omap/dss/dpi.c | 323 +++ + arch/arm/plat-omap/dss/dsi.c | 3022 +++++++++++++++++++++++++++++ + arch/arm/plat-omap/dss/dss.c | 547 ++++++ + arch/arm/plat-omap/dss/dss.h | 254 +++ + arch/arm/plat-omap/dss/rfbi.c | 1234 ++++++++++++ + arch/arm/plat-omap/dss/sdi.c | 157 ++ + arch/arm/plat-omap/dss/venc.c | 515 +++++ + arch/arm/plat-omap/include/mach/display.h | 458 +++++ + 14 files changed, 9081 insertions(+), 0 deletions(-) create mode 100644 arch/arm/plat-omap/dss/Kconfig create mode 100644 arch/arm/plat-omap/dss/Makefile create mode 100644 arch/arm/plat-omap/dss/dispc.c create mode 100644 arch/arm/plat-omap/dss/display.c create mode 100644 arch/arm/plat-omap/dss/dpi.c + create mode 100644 arch/arm/plat-omap/dss/dsi.c create mode 100644 arch/arm/plat-omap/dss/dss.c create mode 100644 arch/arm/plat-omap/dss/dss.h + create mode 100644 arch/arm/plat-omap/dss/rfbi.c create mode 100644 arch/arm/plat-omap/dss/sdi.c + create mode 100644 arch/arm/plat-omap/dss/venc.c create mode 100644 arch/arm/plat-omap/include/mach/display.h diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig @@ -54,7 +58,7 @@ index 1259846..2740497 100644 +obj-y += dss/ diff --git a/arch/arm/plat-omap/dss/Kconfig b/arch/arm/plat-omap/dss/Kconfig new file mode 100644 -index 0000000..150cd24 +index 0000000..ef0b5d9 --- /dev/null +++ b/arch/arm/plat-omap/dss/Kconfig @@ -0,0 +1,66 @@ @@ -107,8 +111,8 @@ index 0000000..150cd24 + +config OMAP2_DSS_MIN_FCK_PER_PCK + int "Minimum FCK/PCK ratio (for scaling)" -+ range 1 32 -+ default 4 ++ range 0 32 ++ default 0 + help + This can be used to adjust the minimum FCK/PCK ratio. + @@ -116,7 +120,7 @@ index 0000000..150cd24 + n x PCK. Video plane scaling requires higher FCK than + normally. + -+ If this is set to 1, there's no extra constraint on the ++ 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). + @@ -138,10 +142,10 @@ index 0000000..e98c6c1 +omap-dss-$(CONFIG_OMAP2_DSS_DSI) += dsi.o diff --git a/arch/arm/plat-omap/dss/dispc.c b/arch/arm/plat-omap/dss/dispc.c new file mode 100644 -index 0000000..8f5da2d +index 0000000..6d06082 --- /dev/null +++ b/arch/arm/plat-omap/dss/dispc.c -@@ -0,0 +1,1667 @@ +@@ -0,0 +1,1720 @@ +/* + * linux/arch/arm/plat-omap/dss/dispc.c + * @@ -255,8 +259,8 @@ index 0000000..8f5da2d + DISPC_IRQ_OCP_ERR | \ + DISPC_IRQ_VID1_FIFO_UNDERFLOW | \ + DISPC_IRQ_VID2_FIFO_UNDERFLOW | \ -+ DISPC_IRQ_SYNC_LOST) -+/*DISPC_IRQ_SYNC_LOST_DIGIT*/ ++ DISPC_IRQ_SYNC_LOST | \ ++ DISPC_IRQ_SYNC_LOST_DIGIT) + +#define DISPC_MAX_NR_ISRS 8 + @@ -1240,91 +1244,135 @@ index 0000000..8f5da2d + panel->acbi, panel->acb); +} + -+unsigned long dispc_calc_clock_div(int is_tft, int pck, int *fck_div, ++void find_lck_pck_divs(int is_tft, unsigned long req_pck, unsigned long fck, + int *lck_div, int *pck_div) +{ -+ unsigned long prate = clk_get_rate(clk_get_parent(dispc.dpll4_m4_ck)); -+ unsigned long pcd_min = is_tft ? 2 : 3; -+ unsigned long best_pck = 0; -+ int best_fd = 9, best_ld = 1, best_pd = 2; -+ int fd, ld, pd; ++ int pcd_min = is_tft ? 2 : 3; ++ unsigned long best_pck; ++ int best_ld, cur_ld; ++ int best_pd, cur_pd; + -+ for (fd = 16; fd > 0; --fd) { -+ unsigned long fck = prate / fd * 2; -+ -+ if (fck > DISPC_MAX_FCK) -+ continue; ++ best_pck = 0; ++ best_ld = 0; ++ best_pd = 0; + -+#ifdef CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK -+ if (fck < pck * CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK) -+ continue; -+#endif -+ for (ld = 1; ld <= 255; ++ld) { -+ unsigned long lck = fck / ld; ++ for (cur_ld = 1; cur_ld <= 255; ++cur_ld) { ++ unsigned long lck = fck / cur_ld; + -+ for (pd = pcd_min; pd <= 255; ++pd) { -+ int p = lck / pd; ++ for (cur_pd = pcd_min; cur_pd <= 255; ++cur_pd) { ++ unsigned long pck = lck / cur_pd; + -+ if (abs(p - pck) < abs(best_pck - pck)) { -+ best_pck = p; -+ best_fd = fd; -+ best_ld = ld; -+ best_pd = pd; -+ } ++ if (abs(pck - req_pck) < abs(best_pck - req_pck)) { ++ best_pck = pck; ++ best_ld = cur_ld; ++ best_pd = cur_pd; + -+ if (p == pck) ++ if (pck == req_pck) + goto found; -+ -+ if (p < pck) -+ break; + } + -+ if (lck / pcd_min < pck) ++ if (pck < req_pck) + break; + } ++ ++ if (lck / pcd_min < req_pck) ++ break; + } + +found: -+ *fck_div = best_fd; + *lck_div = best_ld; + *pck_div = best_pd; -+ -+ return prate / best_fd * 2; +} + -+void dispc_set_clock_div(int fck_div, int lck_div, int pck_div) ++int dispc_calc_clock_div(int is_tft, unsigned long req_pck, ++ struct dispc_clock_info *cinfo) +{ -+ unsigned long prate; ++ unsigned long prate = clk_get_rate(clk_get_parent(dispc.dpll4_m4_ck)); ++ struct dispc_clock_info cur, best; ++ int match = 0; ++ int min_fck_per_pck; ++ ++ 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; ++ } + -+ prate = clk_get_rate(clk_get_parent(dispc.dpll4_m4_ck)); ++retry: ++ memset(&cur, 0, sizeof(cur)); ++ memset(&best, 0, sizeof(best)); + -+ clk_set_rate(dispc.dpll4_m4_ck, prate / fck_div); -+ dispc_set_lcd_divisor(lck_div, pck_div); ++ for (cur.fck_div = 16; cur.fck_div > 0; --cur.fck_div) { ++ cur.fck = prate / cur.fck_div * 2; + -+#ifdef DEBUG -+ { -+ unsigned long fck, lck, pck; -+ fck = prate / fck_div * 2; -+ lck = fck / lck_div; -+ pck = lck / pck_div; ++ 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; + -+ DSSDBG("dpll4_m4 = %ld\n", prate); -+ DSSDBG("fck = %ld (%d)\n", fck, fck_div); -+ DSSDBG("lck = %ld (%d)\n", lck, lck_div); -+ DSSDBG("pck = %ld (%d)\n", pck, pck_div); ++ if (abs(cur.pck - req_pck) < abs(best.pck - req_pck)) { ++ best = cur; ++ ++ if (cur.pck == req_pck) ++ goto found; ++ } + } -+#endif ++ ++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; ++ ++ return 0; +} + -+int dispc_pixel_clock_valid(int pixel_clock) ++int dispc_set_clock_div(struct dispc_clock_info *cinfo) +{ -+ int fck_div, lck_div, pck_div; -+ unsigned long fck; ++ unsigned long prate; ++ int r; ++ ++ prate = clk_get_rate(clk_get_parent(dispc.dpll4_m4_ck)); ++ ++ 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); + -+ fck = dispc_calc_clock_div(1, pixel_clock * 1000, -+ &fck_div, &lck_div, &pck_div); ++ 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); + -+ return fck > 0; ++ return 0; +} + +int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask) @@ -1431,8 +1479,23 @@ index 0000000..8f5da2d + int i; + u32 irqstatus = dispc_read_reg(DISPC_IRQSTATUS); + static int errors; ++ u32 handledirqs = 0; ++ ++#ifdef DEBUG ++ print_irq_status(irqstatus); ++#endif + -+ if (irqstatus & DISPC_IRQ_MASK_ERROR) { ++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { ++ if (!registered_isr[i].isr) ++ continue; ++ if (registered_isr[i].mask & irqstatus) { ++ registered_isr[i].isr(registered_isr[i].arg, ++ irqstatus); ++ handledirqs |= registered_isr[i].mask; ++ } ++ } ++ ++ if (irqstatus & ~handledirqs & DISPC_IRQ_MASK_ERROR) { + if (printk_ratelimit()) { + DSSERR("dispc irq error status %04x\n", + irqstatus); @@ -1444,17 +1507,6 @@ index 0000000..8f5da2d + dispc_enable_digit_out(0); + } + } -+#ifdef DEBUG -+ print_irq_status(irqstatus); -+#endif -+ -+ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { -+ if (!registered_isr[i].isr) -+ continue; -+ if (registered_isr[i].mask & irqstatus) -+ registered_isr[i].isr(registered_isr[i].arg, -+ irqstatus); -+ } + + /* ack the interrupt */ + dispc_write_reg(DISPC_IRQSTATUS, irqstatus); @@ -1480,6 +1532,11 @@ index 0000000..8f5da2d +{ + memset(registered_isr, 0, sizeof(registered_isr)); + ++ /* there's SYNC_LOST_DIGIT waiting after enabling the DSS, ++ * so clear it */ ++ dispc_write_reg(DISPC_IRQSTATUS, ++ dispc_read_reg(DISPC_IRQSTATUS)); ++ + /* We'll handle these always */ + dispc_write_reg(DISPC_IRQENABLE, DISPC_IRQ_MASK_ERROR); +} @@ -1811,10 +1868,10 @@ index 0000000..8f5da2d + diff --git a/arch/arm/plat-omap/dss/display.c b/arch/arm/plat-omap/dss/display.c new file mode 100644 -index 0000000..86f7d39 +index 0000000..4d7238f --- /dev/null +++ b/arch/arm/plat-omap/dss/display.c -@@ -0,0 +1,781 @@ +@@ -0,0 +1,775 @@ +/* + * linux/arch/arm/plat-omap/dss/display.c + * @@ -1843,7 +1900,6 @@ index 0000000..86f7d39 +#include <linux/io.h> +#include <linux/device.h> +#include <linux/err.h> -+#include <linux/delay.h> +#include <linux/sysfs.h> +#include <linux/clk.h> + @@ -2230,11 +2286,6 @@ index 0000000..86f7d39 + dispc_enable_plane(ovl->id, 1); + } + -+ /* XXX if autoidle is enabled, we have to wait here a bit. -+ * Otherwise if we issue GOLCD too soon after lcd enable, -+ * we get sync lost. Why? */ -+ mdelay(100); -+ + dispc_go(mgr->id); + + return 0; @@ -2598,10 +2649,10 @@ index 0000000..86f7d39 +EXPORT_SYMBOL(omap_dss_unregister_panel); diff --git a/arch/arm/plat-omap/dss/dpi.c b/arch/arm/plat-omap/dss/dpi.c new file mode 100644 -index 0000000..d121b52 +index 0000000..2261288 --- /dev/null +++ b/arch/arm/plat-omap/dss/dpi.c -@@ -0,0 +1,303 @@ +@@ -0,0 +1,323 @@ +/* + * linux/arch/arm/plat-omap/dss/dpi.c + * @@ -2674,23 +2725,32 @@ index 0000000..d121b52 + } +#else + { -+ int fck_div; -+ fck = dispc_calc_clock_div(is_tft, -+ panel->timings.pixel_clock*1000, -+ &fck_div, &lck_div, &pck_div); ++ struct dispc_clock_info cinfo; ++ dispc_calc_clock_div(is_tft, panel->timings.pixel_clock*1000, ++ &cinfo); + -+ if (fck == 0) { -+ DSSERR("Requested pixel clock is not possible\n"); ++ if (dispc_set_clock_div(&cinfo)) { ++ DSSERR("Failed to set DSS clocks\n"); + return; + } + -+ dispc_set_clock_div(fck_div, lck_div, pck_div); ++ fck = cinfo.fck; ++ lck_div = cinfo.lck_div; ++ pck_div = cinfo.pck_div; + } +#endif + + pck = fck / lck_div / pck_div / 1000; + -+ panel->timings.pixel_clock = pck; ++ 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; ++ } ++ + DSSDBG("fck %lu, lck_div %d, pck_div %d\n", fck, lck_div, pck_div); +#ifdef DEBUG + { @@ -2830,6 +2890,9 @@ index 0000000..d121b52 +static int dpi_check_timings(struct omap_display *display, + struct omap_video_timings *timings) +{ ++ int is_tft; ++ int r; ++ + if (timings->hsw < 1 || timings->hsw > 64 || + timings->hfp < 1 || timings->hfp > 256 || + timings->hbp < 1 || timings->hbp > 256) { @@ -2841,8 +2904,16 @@ index 0000000..d121b52 + return -EINVAL; + } + -+ if (!dispc_pixel_clock_valid(timings->pixel_clock)) -+ return -EINVAL; ++ ++ is_tft = (display->panel->config & OMAP_DSS_LCD_TFT) != 0; ++ ++#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL ++ r = dsi_pll_calc_pck(is_tft, timings->pixel_clock * 1000, 0); ++#else ++ r = dispc_calc_clock_div(is_tft, timings->pixel_clock * 1000, 0); ++#endif ++ if (r) ++ return r; + + return 0; +} @@ -2905,6 +2976,3034 @@ index 0000000..d121b52 +{ +} + +diff --git a/arch/arm/plat-omap/dss/dsi.c b/arch/arm/plat-omap/dss/dsi.c +new file mode 100644 +index 0000000..980be39 +--- /dev/null ++++ b/arch/arm/plat-omap/dss/dsi.c +@@ -0,0 +1,3022 @@ ++/* ++ * linux/arch/arm/plat-omap/dss/dsi.c ++ * ++ * 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/>. ++ */ ++ ++#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 <mach/board.h> ++#include <mach/display.h> ++ ++#include "dss.h" ++ ++/*#define VERBOSE*/ ++/*#define VERBOSE_IRQ*/ ++/*#define MEASURE_PERF*/ ++ ++#define DSI_BASE 0x4804FC00 ++ ++struct dsi_reg { u16 idx; }; ++ ++#define DSI_REG(idx) ((const struct dsi_reg) { idx }) ++ ++/* 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 DSIPHY_CFG0 DSI_REG(0x200 + 0x0000) ++#define DSIPHY_CFG1 DSI_REG(0x200 + 0x0004) ++#define DSIPHY_CFG2 DSI_REG(0x200 + 0x0008) ++#define 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, ++}; ++ ++static struct ++{ ++ void __iomem *base; ++ ++ struct clk *dss_ick; ++ struct clk *dss1_fck; ++ struct clk *dss2_fck; ++ ++ unsigned long dsi1_pll_fclk; /* Hz */ ++ unsigned long dsi2_pll_fclk; /* Hz */ ++ unsigned long dsiphy; /* Hz */ ++ unsigned long ddr_clk; /* Hz */ ++ ++ struct { ++ enum fifo_size fifo_size; ++ int dest_per; /* destination peripheral 0-3 */ ++ } vc[4]; ++ ++ struct mutex lock; ++ ++ struct completion bta_completion; ++ ++ spinlock_t update_lock; ++ int update_ongoing; ++ int update_syncers; ++ struct completion update_completion; ++ struct work_struct framedone_work; ++ ++ enum omap_dss_update_mode update_mode; ++ int use_te; ++ int framedone_scheduled; /* helps to catch strange framedone bugs */ ++ ++ struct { ++ struct omap_display *display; ++ int x, y, w, h; ++ int bytespp; ++ } update_region; ++ ++#ifdef MEASURE_PERF ++ ktime_t measure_time; ++ int measure_frames; ++#endif ++} dsi; ++ ++ ++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); ++} ++ ++static inline int wait_for_bit_change(const struct dsi_reg idx, int bitnum, ++ int value) ++{ ++ int t = 1000; ++ ++ while (REG_GET(idx, bitnum, bitnum) != value) { ++ if (--t == 0) ++ return !value; ++ } ++ ++ return value; ++} ++ ++ ++#ifdef MEASURE_PERF ++static void start_measuring(void) ++{ ++ dsi.measure_time = ktime_get(); ++} ++ ++static void end_measuring(const char *name) ++{ ++ ktime_t t; ++ u32 total_bytes; ++ u32 us; ++ const int numframes = 100; ++ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_DISABLED) ++ return; ++ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) { ++ dsi.measure_frames++; ++ if (dsi.measure_frames < numframes) ++ return; ++ dsi.measure_frames = 0; ++ } ++ ++ t = ktime_get(); ++ t = ktime_sub(t, dsi.measure_time); ++ us = (u32)ktime_to_us(t); ++ if (us == 0) ++ us = 1; ++ ++ total_bytes = dsi.update_region.w * ++ dsi.update_region.h * ++ dsi.update_region.bytespp; ++ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) { ++ DSSINFO("%s update: %d frames in %u us, %u frames/sec\n", ++ name, numframes, ++ us, ++ 1000*1000 / us); ++ } else { ++ DSSINFO("%s update in %u us (%u Hz), %u bytes, %u kbytes/sec\n", ++ name, ++ us, ++ 1000*1000 / us, ++ total_bytes, ++ total_bytes * 1000 / us); ++ } ++} ++#else ++#define start_measuring() ++#define end_measuring(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(int enable) ++{ ++ if (enable) { ++ clk_enable(dsi.dss_ick); ++ clk_enable(dsi.dss1_fck); ++ } else { ++ clk_disable(dsi.dss1_fck); ++ clk_disable(dsi.dss_ick); ++ } ++} ++ ++/* source clock for DSI PLL. this could also be PCLKFREE */ ++static inline void dsi_enable_pll_clock(int enable) ++{ ++ if (enable) ++ clk_enable(dsi.dss2_fck); ++ else ++ clk_disable(dsi.dss2_fck); ++} ++ ++#if 1 ++ ++#ifdef DEBUG ++static void _dsi_print_reset_status(void) ++{ ++ u32 l; ++ ++ /* 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(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(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 int _dsi_reset(void) ++{ ++ int r = 0; ++ ++ /* Soft reset */ ++ REG_FLD_MOD(DSI_SYSCONFIG, 1, 1, 1); ++ ++ if (wait_for_bit_change(DSI_SYSSTATUS, 0, 1) != 1) { ++ DSSERR("soft reset failed\n"); ++ r = -ENODEV; ++ } ++ ++ /* 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(DSIPHY_CFG5); ++ ++ _dsi_print_reset_status(); ++ ++ return r; ++} ++#endif ++ ++static inline int dsi_if_enable(int 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 = clk_get_rate(dsi.dss1_fck); ++ } 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("DSI: 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("DSI: Failed to set DSI PLL power mode to %d\n", ++ state); ++ return -ENODEV; ++ } ++ } ++ ++ return 0; ++} ++ ++int dsi_pll_calc_pck(int 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; ++ ++ 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 = clk_get_rate(dsi.dss2_fck); ++ 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.dispc_fck = cur.dsiphy / cur.regm3; ++ ++ /* this will narrow down the search a bit, ++ * but still give pixclocks below what was ++ * requested */ ++ if (cur.dispc_fck < req_pck) ++ break; ++ ++ if (cur.dispc_fck > DISPC_MAX_FCK) ++ continue; ++ ++ if (min_fck_per_pck && ++ cur.dispc_fck < req_pck * min_fck_per_pck) ++ continue; ++ ++ match = 1; ++ ++ find_lck_pck_divs(is_tft, req_pck, ++ cur.dispc_fck, ++ &cur.lck_div, ++ &cur.pck_div); ++ ++ cur.lck = cur.dispc_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; ++ } ++ } ++ } ++ } ++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(MHz) = DSIPHY(MHz) / regm4 < 173MHz */ ++ /* hardcoded 48MHz for now. what should it be? */ ++ best.regm4 = best.dsiphy / 48000000; ++ if (best.regm4 > REGM4_MAX) ++ best.regm4 = REGM4_MAX; ++ best.dsi_fck = best.dsiphy / best.regm4; ++ ++ if (cinfo) ++ *cinfo = best; ++ ++ return 0; ++} ++ ++static int dsi_pll_calc_datafreq(unsigned long datafreq, ++ struct dsi_clock_info *cinfo) ++{ ++ struct dsi_clock_info cur, best; ++ const int use_dss2_fck = 1; ++ ++ DSSDBG("dsi_pll_calc_datarate\n"); ++ ++ memset(&best, 0, sizeof(best)); ++ ++ memset(&cur, 0, sizeof(cur)); ++ cur.use_dss2_fck = use_dss2_fck; ++ if (use_dss2_fck) { ++ cur.clkin = clk_get_rate(dsi.dss2_fck); ++ 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(MHz) = DSIPHY(MHz) / regm3 < 173MHz */ ++ /* hardcoded 48MHz for now. what should it be? */ ++ best.regm3 = best.dsiphy / (48000000); ++ if (best.regm3 > REGM3_MAX) ++ best.regm3 = REGM3_MAX; ++ best.dispc_fck = best.dsiphy / best.regm3; ++ ++ /* DSI2_PLL_FCLK(MHz) = DSIPHY(MHz) / regm4 < 173MHz */ ++ /* hardcoded 48MHz for now. what should it be? */ ++ best.regm4 = best.dsiphy / (48000000); ++ if (best.regm4 > REGM4_MAX) ++ best.regm4 = REGM4_MAX; ++ best.dsi_fck = best.dsiphy / best.regm4; ++ ++ if (cinfo) ++ *cinfo = best; ++ ++ return 0; ++} ++ ++int dsi_pll_program(struct dsi_clock_info *cinfo) ++{ ++ int r = 0; ++ u32 l; ++ ++ DSSDBG("dsi_pll_program\n"); ++ ++ enable_clocks(1); ++ ++ dsi.dsiphy = cinfo->dsiphy; ++ dsi.ddr_clk = dsi.dsiphy / 4; ++ dsi.dsi1_pll_fclk = cinfo->dispc_fck; ++ dsi.dsi2_pll_fclk = cinfo->dsi_fck; ++ ++ 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->dispc_fck); ++ DSSDBG("regm4 = %d, dsi2_pll_fclk = %lu\n", ++ cinfo->regm4, cinfo->dsi_fck); ++ ++ 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("DSI: cannot lock PLL\n"); ++ r = -EIO; ++ goto err; ++ } ++ ++ 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: ++ enable_clocks(0); ++ ++ return r; ++} ++ ++int dsi_pll_init(int enable_hsclk, int 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) ++ return r; ++ ++ r = dispc_set_clock_div(&cinfo); ++ if (r) ++ return r; ++ ++ /* 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("DSI: PLL not coming out of reset.\n"); ++ r = -ENODEV; ++ goto err; ++ } ++ ++ /* ... 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 err; ++ ++ enable_clocks(0); ++ ++ DSSDBG("PLL init done\n"); ++ ++ return 0; ++err: ++ enable_clocks(0); ++ dsi_enable_pll_clock(0); ++ return r; ++} ++ ++void dsi_pll_uninit(void) ++{ ++ dsi_pll_power(DSI_PLL_POWER_OFF); ++ dsi_enable_pll_clock(0); ++ 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; ++} ++ ++ssize_t dsi_print_clocks(char *buf, ssize_t size) ++{ ++ ssize_t l = 0; ++ int clksel; ++ ++ enable_clocks(1); ++ ++ clksel = REG_GET(DSI_PLL_CONFIGURATION2, 11, 11); ++ ++ l += snprintf(buf + l, size - l, "- dsi -\n"); ++ ++ l += snprintf(buf + l, size - l, "dsi fclk source = %s\n", ++ dss_get_dsi_clk_source() == 0 ? ++ "dss1_alwon_fclk" : "dsi2_pll_fclk"); ++ ++ l += snprintf(buf + l, size - l, "dsi pll source = %s\n", ++ clksel == 0 ? ++ "dss2_alwon_fclk" : "pclkfree"); ++ ++ l += snprintf(buf + l, size - l, ++ "DSIPHY\t\t%lu\nDDR_CLK\t\t%lu\n", ++ dsi.dsiphy, dsi.ddr_clk); ++ ++ l += snprintf(buf + l, size - l, ++ "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); ++ ++ return l; ++} ++ ++ ++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("DSI: 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 int ns2ddr(int ns) ++{ ++ /* convert time in ns to ddr ticks, rounding up */ ++ return (ns * (dsi.ddr_clk/1000/1000) + 999) / 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(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); ++ ++#ifdef VERBOSE ++ DSSDBG("ths_prepare %d, ths_prepare_ths_zero %d\n", ++ ths_prepare, ths_prepare_ths_zero); ++ DSSDBG("ths_trail %d, ths_exit %d\n", ths_trail, ths_exit); ++ ++ ++ DSSDBG("tlpx_half %d, tclk_trail %d, tclk_zero %d\n", tlpx_half, ++ tclk_trail, tclk_zero); ++ DSSDBG("tclk_prepare %d\n", tclk_prepare); ++#endif ++ ++ /* program timings */ ++ ++ r = dsi_read_reg(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(DSIPHY_CFG0, r); ++ ++ r = dsi_read_reg(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(DSIPHY_CFG1, r); ++ ++ r = dsi_read_reg(DSIPHY_CFG2); ++ r = FLD_MOD(r, tclk_prepare, 7, 0); ++ dsi_write_reg(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); ++ ++ if (wait_for_bit_change(DSIPHY_CFG5, 30, 1) != 1) { ++ DSSERR("DSI: 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("DSI: ComplexIO not coming out of reset.\n"); ++ r = -ENODEV; ++ goto err; ++ } ++ ++ if (wait_for_bit_change(DSI_COMPLEXIO_CFG1, 21, 1) != 1) { ++ DSSERR("DSI: 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 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("DSI: 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("DSI: 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, int 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, int 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 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, 7, 0); ++ if (dt == DSI_DT_RX_ACK_WITH_ERR) { ++ u16 err = FLD_GET(val, 23, 8); ++ DSSERR("\tACK with ERROR: %#x\n", err); ++ if (err & (1 << 9)) ++ DSSERR("\t\tECC multibit\n"); ++ if (err & (1 << 11)) ++ DSSERR("\t\tData type not recognized\n"); ++ if (err & (1 << 12)) ++ DSSERR("\t\tInvalid VC ID\n"); ++ ++ } else if (dt == DSI_DT_RX_SHORT_READ_1) { ++ DSSDBG("\tDCS short response, 1 byte: %#x\n", ++ FLD_GET(val, 23, 8)); ++ return 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)); ++ return 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\n"); ++ } ++ } ++ 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; ++ ++ /*DSSDBG("dsi_vc_send_long, %d bytes\n", len); */ ++ ++ /* len + header */ ++ if (dsi.vc[channel].fifo_size * 32 * 4 < len + 4) { ++ DSSERR("DSI: 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++) { ++ /*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; ++ ++ /*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; ++/* ++ 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 debug = 0; ++ ++ if (debug) ++ DSSDBG("dsi_vc_dcs_read\n"); ++ ++ dsi_vc_send_short(channel, DSI_DT_DCS_READ, dcs_cmd, 0); ++ ++ dsi_vc_send_bta_sync(channel); ++ ++ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel)); ++ if (debug) ++ DSSDBG("\trawval %#08x\n", val); ++ dt = FLD_GET(val, 7, 0); ++ if (dt == DSI_DT_RX_ACK_WITH_ERR) { ++ u16 err = FLD_GET(val, 23, 8); ++ DSSERR("\tACK with ERROR: %#x\n", err); ++ if (err & (1 << 9)) ++ DSSERR("\t\tECC multibit\n"); ++ if (err & (1 << 11)) ++ DSSERR("\t\tData type not recognized\n"); ++ if (err & (1 << 12)) ++ DSSERR("\t\tInvalid VC ID\n"); ++ return -1; ++ ++ } else if (dt == DSI_DT_RX_SHORT_READ_1) { ++ u8 data = FLD_GET(val, 15, 8); ++ if (debug) ++ DSSDBG("\tDCS short response, 1 byte: %#x\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 (debug) ++ DSSDBG("\tDCS short response, 2 byte: %#x\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 x; ++ int len = FLD_GET(val, 23, 8); ++ if (debug) ++ DSSDBG("\tDCS long response, len %d\n", len); ++ ++ if (len > buflen) ++ return -1; ++ ++ x = 0; ++ while (x < len) { ++ val = dsi_read_reg(DSI_VC_SHORT_PACKET_HEADER(channel)); ++ if (debug) ++ DSSDBG("\t\tb1 %#02x b2 %#02x b3 %#02x b4 " ++ "%#02x\n", ++ (val >> 0) & 0xff, ++ (val >> 8) & 0xff, ++ (val >> 16) & 0xff, ++ (val >> 24) & 0xff); ++ ++ if (x < len) ++ buf[x++] = (val >> 0) & 0xff; ++ if (x < len) ++ buf[x++] = (val >> 8) & 0xff; ++ if (x < len) ++ buf[x++] = (val >> 16) & 0xff; ++ if (x < len) ++ buf[x++] = (val >> 24) & 0xff; ++ } ++ ++ return len; ++ } else { ++ DSSERR("\tunknown datatype\n"); ++ 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->bpp) { ++ 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(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(DSIPHY_CFG2); ++ tclk_prepare = FLD_GET(r, 7, 0); ++ ++ /* min 8*UI */ ++ tclk_pre = 4; ++ /* 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); ++ ++#ifdef VERBOSE ++ DSSDBG("ddr_clk_pre %d, ddr_clk_post %d\n", ++ ddr_clk_pre, ++ ddr_clk_post); ++#endif ++} ++ ++ ++#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 *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->bpp != 24) ++ return -EINVAL; ++ ++ enable_clocks(1); ++ ++ 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; ++ ++ 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(); ++ ++ 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); ++ enable_clocks(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); ++ enable_clocks(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); ++ enable_clocks(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 = *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); ++ } ++ ++ end_measuring("L4"); ++ ++ enable_clocks(0); ++ ++ 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 int dsi_wait_for_framedone(void) ++{ ++ unsigned long flags; ++ ++ spin_lock_irqsave(&dsi.update_lock, flags); ++ if (dsi.update_ongoing) { ++ long wait = msecs_to_jiffies(1000); ++ dsi.update_syncers++; ++ spin_unlock_irqrestore(&dsi.update_lock, flags); ++ wait = wait_for_completion_timeout(&dsi.update_completion, ++ wait); ++ if (wait == 0) { ++ DSSERR("timeout waiting sync\n"); ++ return -ETIME; ++ } ++ } else { ++ spin_unlock_irqrestore(&dsi.update_lock, flags); ++ } ++ ++ return 0; ++} ++ ++static void dsi_setup_update_dispc(struct omap_display *display, ++ int x, int y, int w, int h) ++{ ++ int bytespp = 3; ++ ++ DSSDBG("dsi_setup_update_dispc(%d,%d %dx%d)\n", ++ x, y, w, h); ++ ++ dsi.update_region.display = display; ++ 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; ++ ++ enable_clocks(1); ++ ++ dispc_setup_partial_planes(display, &x, &y, &w, &h); ++ ++ dispc_set_lcd_size(w, h); ++ ++ enable_clocks(0); ++} ++ ++static void dsi_update_screen_dispc(struct omap_display *display) ++{ ++ int bytespp = 3; ++ int total_len; ++ int line_packet_len; ++ int x, y, w, h; ++ u32 l; ++ ++ x = dsi.update_region.x; ++ y = dsi.update_region.y; ++ w = dsi.update_region.w; ++ h = dsi.update_region.h; ++ ++ DSSDBG("dsi_update_screen_dispc(%d,%d %dx%d)\n", ++ x, y, w, h); ++ ++ enable_clocks(1); ++ ++ /* 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); ++ ++ start_measuring(); ++ ++ 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. */ ++ schedule_work(&dsi.framedone_work); ++} ++ ++static void framedone_worker(struct work_struct *work) ++{ ++ unsigned long flags; ++ 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"); ++ ++ spin_lock_irqsave(&dsi.update_lock, flags); ++ if (dsi.update_ongoing == 0) { ++ spin_unlock_irqrestore(&dsi.update_lock, flags); ++ DSSERR("framedone irq without update request\n"); ++ return; ++ } ++ spin_unlock_irqrestore(&dsi.update_lock, flags); ++ ++ end_measuring("DISPC"); ++ ++ 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 ++ ++ spin_lock_irqsave(&dsi.update_lock, flags); ++ dsi.update_ongoing = 0; ++ while (dsi.update_syncers > 0) { ++ complete(&dsi.update_completion); ++ --dsi.update_syncers; ++ } ++ spin_unlock_irqrestore(&dsi.update_lock, flags); ++ ++#ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC ++ dispc_fake_vsync_irq(); ++#endif ++ enable_clocks(0); ++ ++ dsi.framedone_scheduled = 0; ++ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) { ++ spin_lock_irqsave(&dsi.update_lock, flags); ++ dsi.update_ongoing = 1; ++ spin_unlock_irqrestore(&dsi.update_lock, flags); ++ dsi_update_screen_dispc(dsi.update_region.display); ++ } ++} ++ ++static void dsi_start_auto_update(struct omap_display *display) ++{ ++ unsigned long flags; ++ int bytespp = 3; ++ ++ DSSDBG("starting auto update\n"); ++ ++ dsi.update_region.display = display; ++ dsi.update_region.x = 0; ++ dsi.update_region.y = 0; ++ dsi.update_region.w = display->x_res; ++ dsi.update_region.h = display->y_res; ++ dsi.update_region.bytespp = bytespp; ++ ++ enable_clocks(1); ++ ++ dispc_set_lcd_size(display->x_res, display->y_res); ++ ++ spin_lock_irqsave(&dsi.update_lock, flags); ++ dsi.update_ongoing = 1; ++ spin_unlock_irqrestore(&dsi.update_lock, flags); ++ dsi_update_screen_dispc(display); ++} ++ ++static void dsi_stop_auto_update(void) ++{ ++ dsi.update_mode = OMAP_DSS_UPDATE_DISABLED; ++ ++ DSSDBG("waiting for display to finish.\n"); ++ dsi_wait_for_framedone(); ++ DSSDBG("done waiting\n"); ++ enable_clocks(0); ++ ++ dsi.update_mode = OMAP_DSS_UPDATE_MANUAL; ++} ++ ++static int dsi_set_update_mode(struct omap_display *display, ++ enum omap_dss_update_mode mode) ++{ ++ if (mode == dsi.update_mode) ++ return 0; ++ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) ++ dsi_stop_auto_update(); ++ else if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL) ++ dsi_wait_for_framedone(); ++ ++ dsi.update_mode = mode; ++ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) ++ dsi_start_auto_update(display); ++ ++ return 0; ++} ++ ++/* Display funcs */ ++ ++static int dsi_display_enable(struct omap_display *display) ++{ ++ int r = 0; ++ struct dsi_clock_info cinfo; ++ ++ 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); ++ ++ r = omap_dispc_register_isr(framedone_callback, NULL, ++ DISPC_IRQ_FRAMEDONE); ++ if (r) { ++ DSSERR("can't get FRAMEDONE irq\n"); ++ goto err1; ++ } ++ ++ dispc_set_lcd_display_type(OMAP_DSS_LCD_DISPLAY_TFT); ++ ++ dispc_set_parallel_interface_mode(OMAP_DSS_PARALLELMODE_DSI); ++ dispc_enable_fifohandcheck(1); ++ dispc_setup_plane_fifo(OMAP_DSS_GFX, 0); ++ dispc_setup_plane_fifo(OMAP_DSS_VIDEO1, 0); ++ dispc_setup_plane_fifo(OMAP_DSS_VIDEO2, 0); ++ dispc_set_tft_data_lines(display->bpp); ++ ++ { ++ struct omap_video_timings timings = { ++ .hsw = 1, ++ .hfp = 1, ++ .hbp = 1, ++ .vsw = 1, ++ .vfp = 0, ++ .vbp = 0, ++ }; ++ ++ dispc_set_lcd_timings(&timings); ++ } ++ ++ _dsi_print_reset_status(); ++ ++ r = dsi_pll_init(1, 0); ++ if (r) ++ goto err2; ++ ++ /* XXX hardcoded for 300Mbp/lane for now */ ++ r = dsi_pll_calc_datafreq(600 * 1000 * 1000, &cinfo); ++ if (r) ++ goto err3; ++ ++ r = dsi_pll_program(&cinfo); ++ if (r) ++ goto err3; ++ ++ DSSDBG("PLL OK\n"); ++ ++ r = dsi_complexio_init(display); ++ if (r) ++ goto err3; ++ ++ _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 err4; ++ ++ /* 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 err5; ++ } ++ ++ if (display->panel && display->panel->enable) { ++ r = display->panel->enable(display); ++ if (r) ++ goto err6; ++ } ++ ++ if (dsi.use_te) { ++ r = display->ctrl->enable_te(display, 1); ++ if (r) ++ goto err7; ++ } ++ ++ /* enable high-speed after initial config */ ++ dsi_vc_enable_hs(0, 1); ++ ++ display->state = OMAP_DSS_DISPLAY_ACTIVE; ++ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) ++ dsi_start_auto_update(display); ++ ++ enable_clocks(0); ++ mutex_unlock(&dsi.lock); ++ ++ return 0; ++err7: ++ if (display->panel && display->panel->disable) ++ display->panel->disable(display); ++err6: ++ if (display->ctrl && display->ctrl->disable) ++ display->ctrl->disable(display); ++err5: ++ dsi_if_enable(0); ++err4: ++ dsi_complexio_uninit(); ++err3: ++ dsi_pll_uninit(); ++err2: ++ omap_dispc_unregister_isr(framedone_callback); ++err1: ++ enable_clocks(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) ++ goto end; ++ ++ enable_clocks(1); ++ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) ++ dsi_stop_auto_update(); ++ else if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL) ++ dsi_wait_for_framedone(); ++ ++ display->state = OMAP_DSS_DISPLAY_DISABLED; ++ ++ omap_dispc_unregister_isr(framedone_callback); ++ ++ if (display->panel && display->panel->disable) ++ display->panel->disable(display); ++ if (display->ctrl && display->ctrl->disable) ++ display->ctrl->disable(display); ++ ++ /* XXX sleep a bit to make sure all DSI buffers are sent. ++ * We should check it from somewhere, fifo fullness I guess */ ++ msleep(200); ++ ++ dsi_complexio_uninit(); ++ dsi_pll_uninit(); ++ ++ enable_clocks(0); ++ ++end: ++ mutex_unlock(&dsi.lock); ++} ++ ++static int dsi_display_suspend(struct omap_display *display) ++{ ++ if (display->state != OMAP_DSS_DISPLAY_ACTIVE) ++ return -EINVAL; ++ ++ if (display->panel->suspend) ++ display->panel->suspend(display); ++ ++ if (display->ctrl->suspend) ++ display->ctrl->suspend(display); ++ ++ display->state = OMAP_DSS_DISPLAY_SUSPENDED; ++ ++ return 0; ++} ++ ++static int dsi_display_resume(struct omap_display *display) ++{ ++ if (display->state != OMAP_DSS_DISPLAY_SUSPENDED) ++ return -EINVAL; ++ ++ if (display->panel->resume) ++ display->panel->resume(display); ++ ++ if (display->ctrl->resume) ++ display->ctrl->resume(display); ++ ++ display->state = OMAP_DSS_DISPLAY_ACTIVE; ++ ++ return 0; ++} ++ ++static void dsi_display_set_mode(struct omap_display *display, ++ int x_res, int y_res, int bpp) ++{ ++ DSSDBG("dsi_display_set_mode %dx%d, %dbpp\n", x_res, y_res, bpp); ++} ++ ++static int dsi_display_update(struct omap_display *display, ++ int x, int y, int w, int h) ++{ ++ unsigned long flags; ++ int r = 0; ++ ++ 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.update_mode != OMAP_DSS_UPDATE_MANUAL) ++ goto end; /* XXX return error? */ ++ ++ spin_lock_irqsave(&dsi.update_lock, flags); ++ ++ if (dsi.update_ongoing) { ++ spin_unlock_irqrestore(&dsi.update_lock, flags); ++ DSSERR("DSI is busy\n"); ++ r = -EBUSY; ++ goto end; ++ } ++ ++ dsi.update_ongoing = 1; ++ ++ if (dsi.update_syncers > 0) ++ DSSERR("someone waiting for sync, and no update ongoing\n"); ++ ++ spin_unlock_irqrestore(&dsi.update_lock, flags); ++ ++ if (display->manager->caps & OMAP_DSS_OVL_MGR_CAP_DISPC) { ++ dsi_setup_update_dispc(display, x, y, w, h); ++ dsi_update_screen_dispc(display); ++ } else { ++ r = dsi_update_screen_l4(display, x, y, w, h); ++ if (r) ++ goto end; ++ ++ spin_lock_irqsave(&dsi.update_lock, flags); ++ dsi.update_ongoing = 0; ++ while (dsi.update_syncers > 0) { ++ complete(&dsi.update_completion); ++ --dsi.update_syncers; ++ } ++ spin_unlock_irqrestore(&dsi.update_lock, flags); ++ } ++ ++end: ++ mutex_unlock(&dsi.lock); ++ return r; ++} ++ ++static int dsi_display_sync(struct omap_display *display) ++{ ++ int r = 0; ++ ++ DSSDBG("dsi_display_sync\n"); ++ ++ mutex_lock(&dsi.lock); ++ ++ if (dsi.update_mode != OMAP_DSS_UPDATE_MANUAL) ++ goto end; ++ ++ r = dsi_wait_for_framedone(); ++ ++end: ++ mutex_unlock(&dsi.lock); ++ return r; ++} ++ ++static int dsi_display_set_update_mode(struct omap_display *display, ++ enum omap_dss_update_mode mode) ++{ ++ int r; ++ ++ DSSDBG("dsi_display_set_update_mode\n"); ++ ++ mutex_lock(&dsi.lock); ++ ++ r = dsi_set_update_mode(display, mode); ++ ++ mutex_unlock(&dsi.lock); ++ ++ return r; ++} ++ ++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, int enable) ++{ ++ enum omap_dss_update_mode mode; ++ ++ DSSDBG("dsi_display_enable_te\n"); ++ ++ mutex_lock(&dsi.lock); ++ ++ enable_clocks(1); ++ ++ mode = dsi.update_mode; ++ ++ /* XXX perhaps suspend or something would be better here */ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) ++ dsi_stop_auto_update(); ++ else if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL) ++ dsi_wait_for_framedone(); ++ ++ dsi.use_te = enable; ++ 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 */ ++ } ++ ++ /* restore the old update mode */ ++ dsi_set_update_mode(display, mode); ++ ++ enable_clocks(0); ++ ++ mutex_unlock(&dsi.lock); ++ ++ return 0; ++} ++ ++static int dsi_display_get_te(struct omap_display *display) ++{ ++ return dsi.use_te; ++} ++ ++static int dsi_display_run_test(struct omap_display *display, int test_num) ++{ ++ enum omap_dss_update_mode mode; ++ int r = 0; ++ ++ DSSDBG("dsi_display_run_test %d\n", test_num); ++ ++ mutex_lock(&dsi.lock); ++ ++ enable_clocks(1); ++ ++ mode = dsi.update_mode; ++ ++ /* XXX perhaps suspend or something would be better here */ ++ if (dsi.update_mode == OMAP_DSS_UPDATE_AUTO) ++ dsi_stop_auto_update(); ++ else if (dsi.update_mode == OMAP_DSS_UPDATE_MANUAL) ++ dsi_wait_for_framedone(); ++ ++ /* 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_num); ++ if (r) ++ goto fail; ++ } ++ ++ if (display->panel->run_test) { ++ r = display->panel->run_test(display, test_num); ++ if (r) ++ goto fail; ++ } ++ ++ /* then in high speed */ ++ dsi_vc_enable_hs(0, 1); ++ ++ if (display->ctrl->run_test) { ++ r = display->ctrl->run_test(display, test_num); ++ if (r) ++ goto fail; ++ } ++ ++ if (display->panel->run_test) ++ r = display->panel->run_test(display, test_num); ++ ++fail: ++ dsi_vc_enable_hs(0, 1); ++ ++ /* restore the old update mode */ ++ dsi_set_update_mode(display, mode); ++ ++ enable_clocks(0); ++ ++ mutex_unlock(&dsi.lock); ++ ++ return r; ++} ++ ++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->set_mode = dsi_display_set_mode; ++ 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->run_test = dsi_display_run_test; ++ ++ display->caps = OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE; ++} ++ ++int dsi_init(void) ++{ ++ u32 rev; ++ ++ init_completion(&dsi.bta_completion); ++ INIT_WORK(&dsi.framedone_work, framedone_worker); ++ ++ init_completion(&dsi.update_completion); ++ spin_lock_init(&dsi.update_lock); ++ dsi.update_ongoing = 0; ++ dsi.update_syncers = 0; ++ ++ mutex_init(&dsi.lock); ++ ++ dsi.base = ioremap(DSI_BASE, SZ_1K); ++ if (!dsi.base) { ++ DSSERR("can't ioremap DSI\n"); ++ return -ENOMEM; ++ } ++ ++ dsi.dss_ick = get_dss_ick(); ++ dsi.dss1_fck = get_dss1_fck(); ++ dsi.dss2_fck = get_dss2_fck(); ++ ++ enable_clocks(1); ++ ++ /* 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); ++ ++ if (0) ++ _dsi_reset(); ++ ++ _dsi_initialize_irq(); ++ ++ 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) ++{ ++ iounmap(dsi.base); ++ ++ DSSDBG("omap_dsi_exit\n"); ++} ++ diff --git a/arch/arm/plat-omap/dss/dss.c b/arch/arm/plat-omap/dss/dss.c new file mode 100644 index 0000000..da0364b @@ -3460,10 +6559,10 @@ index 0000000..da0364b + diff --git a/arch/arm/plat-omap/dss/dss.h b/arch/arm/plat-omap/dss/dss.h new file mode 100644 -index 0000000..4df7f67 +index 0000000..28929b9 --- /dev/null +++ b/arch/arm/plat-omap/dss/dss.h -@@ -0,0 +1,240 @@ +@@ -0,0 +1,254 @@ +/* + * linux/arch/arm/plat-omap/dss/dss.h + * @@ -3555,6 +6654,41 @@ index 0000000..4df7f67 + OMAP_DSS_PARALLELMODE_DSI, +}; + ++struct dispc_clock_info { ++ /* rates that we get with dividers below */ ++ unsigned long fck; ++ unsigned long lck; ++ unsigned long pck; ++ ++ /* dividers */ ++ int fck_div; ++ int lck_div; ++ int pck_div; ++}; ++ ++struct dsi_clock_info { ++ /* rates that we get with dividers below */ ++ unsigned long fint; ++ unsigned long dsiphy; ++ unsigned long clkin; /* input clk for DSI PLL */ ++ unsigned long dispc_fck; /* output clk, DSI1_PLL_FCLK */ ++ unsigned long dsi_fck; /* output clk, DSI2_PLL_FCLK */ ++ unsigned long lck; ++ unsigned long pck; ++ ++ /* dividers */ ++ int regn; ++ int regm; ++ int regm3; ++ int regm4; ++ ++ int lck_div; ++ int pck_div; ++ ++ int highfreq; ++ int use_dss2_fck; ++}; ++ +int initialize_sysfs(struct device *dev); +void uninitialize_sysfs(struct device *dev); +void initialize_displays(struct omap_dss_platform_data *pdata); @@ -3584,35 +6718,13 @@ index 0000000..4df7f67 + + +/* DSI */ -+struct dsi_clock_info { -+ /* rates that we get with dividers below */ -+ unsigned long fint; -+ unsigned long dsiphy; -+ unsigned long clkin; /* input clk for DSI PLL */ -+ unsigned long dispc_fck; /* output clk, DSI1_PLL_FCLK */ -+ unsigned long dsi_fck; /* output clk, DSI2_PLL_FCLK */ -+ unsigned long pck; /* dispc pixel clock */ -+ -+ /* dividers */ -+ int regn; -+ int regm; -+ int regm3; -+ int regm4; -+ -+ int lck_div; -+ int pck_div; -+ -+ int highfreq; -+ int use_dss2_fck; -+}; -+ +int dsi_init(void); +void dsi_exit(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(int is_tft, unsigned long pck, ++int dsi_pll_calc_pck(int is_tft, unsigned long req_pck, + struct dsi_clock_info *cinfo); +int dsi_pll_program(struct dsi_clock_info *cinfo); +int dsi_pll_init(int enable_hsclk, int enable_hsdiv); @@ -3673,11 +6785,12 @@ index 0000000..4df7f67 +unsigned long dispc_fclk_rate(void); +unsigned long dispc_pclk_rate(void); +void dispc_set_pol_freq(struct omap_panel *panel); -+unsigned long dispc_calc_clock_div(int is_tft, int pck, int *fck_div, ++void find_lck_pck_divs(int is_tft, unsigned long req_pck, unsigned long fck, + int *lck_div, int *pck_div); -+void dispc_set_clock_div(int fck_div, int lck_div, int pck_div); ++int dispc_calc_clock_div(int is_tft, unsigned long req_pck, ++ struct dispc_clock_info *cinfo); ++int dispc_set_clock_div(struct dispc_clock_info *cinfo); +void dispc_set_lcd_divisor(int lck_div, int pck_div); -+int dispc_pixel_clock_valid(int pixel_clock); + +void dispc_setup_partial_planes(struct omap_display *display, + int *x, int *y, int *w, int *h); @@ -3704,12 +6817,1252 @@ index 0000000..4df7f67 +void rfbi_init_display(struct omap_display *display); + +#endif +diff --git a/arch/arm/plat-omap/dss/rfbi.c b/arch/arm/plat-omap/dss/rfbi.c +new file mode 100644 +index 0000000..31ddd24 +--- /dev/null ++++ b/arch/arm/plat-omap/dss/rfbi.c +@@ -0,0 +1,1234 @@ ++/* ++ * linux/arch/arm/plat-omap/dss/rfbi.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 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 <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; ++ ++ struct clk *dss_ick; ++ struct clk *dss1_fck; ++ ++ 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 ++ ktime_t perf_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(int enable) ++{ ++ if (enable) { ++ clk_enable(rfbi.dss_ick); ++ clk_enable(rfbi.dss1_fck); ++ } else { ++ clk_disable(rfbi.dss1_fck); ++ clk_disable(rfbi.dss_ick); ++ } ++} ++ ++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 *buf, int scr_width, int x, int y, ++ int w, int 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 *pd = buf; ++ pd += start_offset; ++ ++ for (; h; --h) { ++ for (i = 0; i < w; ++i) { ++ const u8 *b = (const u8 *)pd; ++ rfbi_write_reg(RFBI_PARAM, *(b+1)); ++ rfbi_write_reg(RFBI_PARAM, *(b+0)); ++ ++pd; ++ } ++ pd += horiz_offset; ++ } ++ } else if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_24 && ++ rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_8) { ++ const u32 *pd = buf; ++ pd += start_offset; ++ ++ for (; h; --h) { ++ for (i = 0; i < w; ++i) { ++ const u8 *b = (const u8 *)pd; ++ rfbi_write_reg(RFBI_PARAM, *(b+2)); ++ rfbi_write_reg(RFBI_PARAM, *(b+1)); ++ rfbi_write_reg(RFBI_PARAM, *(b+0)); ++ ++pd; ++ } ++ pd += horiz_offset; ++ } ++ } else if (rfbi.datatype == OMAP_DSS_RFBI_DATATYPE_16 && ++ rfbi.parallelmode == OMAP_DSS_RFBI_PARALLELMODE_16) { ++ const u16 *pd = buf; ++ pd += start_offset; ++ ++ for (; h; --h) { ++ for (i = 0; i < w; ++i) { ++ rfbi_write_reg(RFBI_PARAM, *pd); ++ ++pd; ++ } ++ pd += horiz_offset; ++ } ++ } else { ++ BUG(); ++ } ++ ++ rfbi_enable_clocks(0); ++} ++EXPORT_SYMBOL(omap_rfbi_write_pixels); ++ ++void rfbi_transfer_area(int width, int 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); ++ ++#ifdef MEASURE_PERF ++ rfbi.perf_time = ktime_get(); ++#endif ++ 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 */ ++ ++ rfbi_write_reg(RFBI_CONTROL, l); ++} ++ ++static void framedone_callback(void *data, u32 mask) ++{ ++ void (*callback)(void *data); ++ ++#ifdef MEASURE_PERF ++ { ++ ktime_t t = ktime_get(); ++ t = ktime_sub(t, rfbi.perf_time); ++ DSSDBG("FRAMEDONE in %lld ns\n", ktime_to_ns(t)); ++ } ++#else ++ DSSDBG("FRAMEDONE\n"); ++#endif ++ ++ 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 = clk_get_rate(rfbi.dss1_fck) / 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(int 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; ++} ++ ++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) ++{ ++ int x = upd->x; ++ int y = upd->y; ++ int w = upd->w; ++ int h = upd->h; ++ ++ 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); ++ ++ display->ctrl->setup_update(display, x, y, w, h); ++ ++ rfbi_transfer_area(w, h, NULL, NULL); ++ ++ return 1; ++ } else { ++ struct omap_overlay *ovl; ++ void *addr; ++ int scr_width; ++#ifdef MEASURE_PERF ++ ktime_t t1, t2; ++#endif ++ ovl = &display->manager->overlays[0]; ++ scr_width = ovl->info.screen_width; ++ addr = ovl->info.vaddr; ++ ++ display->ctrl->setup_update(display, x, y, w, h); ++ ++#ifdef MEASURE_PERF ++ t1 = ktime_get(); ++#endif ++ omap_rfbi_write_pixels(addr, scr_width, ++ x, y, w, h); ++#ifdef MEASURE_PERF ++ t2 = ktime_get(); ++ t1 = ktime_sub(t2, t1); ++ DSSDBG("L4 FRAMEDONE in %lld ns\n", ++ ktime_to_ns(t1)); ++#endif ++ 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(); ++} ++ ++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.dss_ick = get_dss_ick(); ++ rfbi.dss1_fck = get_dss1_fck(); ++ ++ rfbi_enable_clocks(1); ++ ++ msleep(10); ++ ++ rfbi.l4_khz = clk_get_rate(rfbi.dss_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 void rfbi_display_set_mode(struct omap_display *display, ++ int x_res, int y_res, int bpp) ++{ ++ display->bpp = bpp; ++ ++ dispc_set_tft_data_lines(display->bpp); ++ ++ if (rfbi_configure(display->hw_config.u.rfbi.channel, ++ display->bpp, ++ display->hw_config.u.rfbi.data_lines) != 0) { ++ DSSERR("can't configure rfbi\n"); ++ } ++ ++ display->ctrl->set_mode(display, x_res, y_res, bpp); ++} ++ ++ ++static int rfbi_display_update(struct omap_display *display, ++ int x, int y, int w, int 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, int 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); ++ ++ /* FIX select 16bpp as default */ ++ rfbi_configure(display->hw_config.u.rfbi.channel, ++ 16, ++ display->hw_config.u.rfbi.data_lines); ++ ++ rfbi_set_timings(display->hw_config.u.rfbi.channel, ++ &display->ctrl->timings); ++ ++ display->ctrl->enable(display); ++ ++ return 0; ++} ++ ++static void rfbi_display_disable(struct omap_display *display) ++{ ++ display->ctrl->disable(display); ++ omap_dispc_unregister_isr(framedone_callback); ++} ++ ++void rfbi_init_display(struct omap_display *display) ++{ ++ display->enable = rfbi_display_enable; ++ display->disable = rfbi_display_disable; ++ display->set_mode = rfbi_display_set_mode; ++ 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/arch/arm/plat-omap/dss/sdi.c b/arch/arm/plat-omap/dss/sdi.c new file mode 100644 -index 0000000..3f114f2 +index 0000000..de19d47 --- /dev/null +++ b/arch/arm/plat-omap/dss/sdi.c -@@ -0,0 +1,154 @@ +@@ -0,0 +1,157 @@ +/* + * linux/arch/arm/plat-omap/dss/sdi.c + * @@ -3749,7 +8102,8 @@ index 0000000..3f114f2 + +static int sdi_display_enable(struct omap_display *display) +{ -+ int fck_div, lck_div, pck_div; ++ struct dispc_clock_info cinfo; ++ int lck_div, pck_div; + unsigned long fck; + + struct omap_panel *panel = display->panel; @@ -3769,15 +8123,17 @@ index 0000000..3f114f2 + dispc_set_lcd_timings(&panel->timings); + dispc_set_pol_freq(panel); + -+ fck = dispc_calc_clock_div(1, panel->timings.pixel_clock*1000, -+ &fck_div, &lck_div, &pck_div); ++ dispc_calc_clock_div(1, panel->timings.pixel_clock * 1000, ++ &cinfo); + -+ if (fck == 0) { -+ DSSERR("Requested pixel clock is not possible\n"); ++ if (dispc_set_clock_div(&cinfo)) { ++ DSSERR("Failed to set DSS clocks\n"); + return -EINVAL; + } + -+ dispc_set_clock_div(fck_div, lck_div, pck_div); ++ fck = cinfo.fck; ++ lck_div = cinfo.lck_div; ++ pck_div = cinfo.pck_div; + + panel->timings.pixel_clock = fck / lck_div / pck_div / 1000; + @@ -3864,9 +8220,530 @@ index 0000000..3f114f2 +void sdi_exit(void) +{ +} +diff --git a/arch/arm/plat-omap/dss/venc.c b/arch/arm/plat-omap/dss/venc.c +new file mode 100644 +index 0000000..2ed68b5 +--- /dev/null ++++ b/arch/arm/plat-omap/dss/venc.c +@@ -0,0 +1,515 @@ ++/* ++ * linux/arch/arm/plat-omap/dss/venc.c ++ * ++ * Copyright (C) 2008 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/clk.h> ++#include <linux/err.h> ++#include <linux/io.h> ++#include <linux/mutex.h> ++#include <linux/completion.h> ++#include <linux/delay.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; ++ ++ int width; ++ int height; ++}; ++ ++/* 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 = 0x00180270, ++ .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, ++ ++ .width = 720, ++ .height = 574, /* for some reason, this isn't 576 */ ++}; ++ ++/* 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, ++ ++ .width = 720, ++ .height = 482, ++}; ++ ++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, ++ ++ .width = 720, ++ .height = 576, ++}; ++ ++static struct { ++ void __iomem *base; ++ struct clk *dss_54m_fck; ++ struct clk *dss_96m_fck; ++ struct clk *dss_ick; ++ struct clk *dss1_fck; ++ const struct venc_config *config; ++ struct mutex venc_lock; ++} venc; ++ ++static struct omap_panel venc_panel = { ++ .name = "tv-out", ++ .x_res = 0, ++ .y_res = 0, ++ .bpp = 24, ++}; ++ ++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, venc_read_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; ++ } ++ } ++} ++ ++static void venc_enable_clocks(int enable) ++{ ++ if (enable) { ++ clk_enable(venc.dss_ick); ++ clk_enable(venc.dss1_fck); ++ clk_enable(venc.dss_54m_fck); ++ clk_enable(venc.dss_96m_fck); ++ } else { ++ clk_disable(venc.dss_96m_fck); ++ clk_disable(venc.dss_54m_fck); ++ clk_disable(venc.dss1_fck); ++ clk_disable(venc.dss_ick); ++ } ++} ++ ++int venc_init(void) ++{ ++ u8 rev_id; ++ int use_pal = 1; /* XXX */ ++ ++ mutex_init(&venc.venc_lock); ++ ++ if (use_pal) ++ venc.config = &venc_config_pal_trm; ++ else ++ venc.config = &venc_config_ntsc_trm; ++ ++ venc_panel.x_res = venc.config->width; ++ venc_panel.y_res = venc.config->height; ++ ++ venc.base = ioremap(VENC_BASE, SZ_1K); ++ if (!venc.base) { ++ DSSERR("can't ioremap VENC\n"); ++ return -ENOMEM; ++ } ++ ++ venc.dss_ick = get_dss_ick(); ++ venc.dss1_fck = get_dss1_fck(); ++ venc.dss_54m_fck = get_tv_fck(); ++ venc.dss_96m_fck = get_96m_fck(); ++ ++ /* enable clocks */ ++ venc_enable_clocks(1); ++ ++ /* configure venc */ ++ venc_reset(); ++ venc_write_config(venc.config); ++ ++ 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_sync_lost_handler(void *arg, u32 mask) ++{ ++ /* we just catch SYNC_LOST_DIGIT here so that ++ * dispc doesn't take it as an error */ ++} ++ ++static int venc_enable_display(struct omap_display *display) ++{ ++ DSSDBG("venc_enable_display\n"); ++ ++ mutex_lock(&venc.venc_lock); ++ ++ if (display->state != OMAP_DSS_DISPLAY_DISABLED) { ++ mutex_unlock(&venc.venc_lock); ++ return -EINVAL; ++ } ++ ++ venc_enable_clocks(1); ++ ++ 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); ++ } ++ ++ venc_write_config(venc.config); ++ ++ dispc_set_digit_size(venc.config->width, venc.config->height/2); ++ ++ if (display->hw_config.panel_enable) ++ display->hw_config.panel_enable(display); ++ ++ dispc_go(OMAP_DSS_CHANNEL_DIGIT); ++ ++ omap_dispc_register_isr(venc_sync_lost_handler, 0, ++ DISPC_IRQ_SYNC_LOST_DIGIT); ++ ++ dispc_enable_digit_out(1); ++ ++ mdelay(20); ++ ++ omap_dispc_unregister_isr(venc_sync_lost_handler); ++ ++ display->state = OMAP_DSS_DISPLAY_ACTIVE; ++ ++ mutex_unlock(&venc.venc_lock); ++ ++ return 0; ++} ++ ++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) { ++ mutex_unlock(&venc.venc_lock); ++ return; ++ } ++ ++ 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); ++ ++ display->state = OMAP_DSS_DISPLAY_DISABLED; ++ ++ mutex_unlock(&venc.venc_lock); ++} ++ ++void venc_init_display(struct omap_display *display) ++{ ++ display->panel = &venc_panel; ++ display->enable = venc_enable_display; ++ display->disable = venc_disable_display; ++} 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..05e78de +index 0000000..2e55fae --- /dev/null +++ b/arch/arm/plat-omap/include/mach/display.h @@ -0,0 +1,458 @@ @@ -4259,7 +9136,7 @@ index 0000000..05e78de +}; + +struct omap_display { -+ //atomic_t ref_count; ++ /*atomic_t ref_count;*/ + int ref_count; + + enum omap_display_type type; |