diff options
Diffstat (limited to 'recipes/linux/linux-omap-2.6.31/dss2/0009-OMAP-DSS2-DISPC.patch')
| -rw-r--r-- | recipes/linux/linux-omap-2.6.31/dss2/0009-OMAP-DSS2-DISPC.patch | 3204 |
1 files changed, 3204 insertions, 0 deletions
diff --git a/recipes/linux/linux-omap-2.6.31/dss2/0009-OMAP-DSS2-DISPC.patch b/recipes/linux/linux-omap-2.6.31/dss2/0009-OMAP-DSS2-DISPC.patch new file mode 100644 index 0000000000..a558223c11 --- /dev/null +++ b/recipes/linux/linux-omap-2.6.31/dss2/0009-OMAP-DSS2-DISPC.patch @@ -0,0 +1,3204 @@ +From 8ec6585980444513ee55fbdf462dc36ca5fcbef4 Mon Sep 17 00:00:00 2001 +From: Tomi Valkeinen <tomi.valkeinen@nokia.com> +Date: Fri, 7 Aug 2009 13:15:32 +0300 +Subject: [PATCH 09/18] OMAP: DSS2: DISPC + +This file implements DISPC (display controller) block of the OMAP DSS. + +Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com> +--- + drivers/video/omap2/dss/dispc.c | 3182 +++++++++++++++++++++++++++++++++++++++ + 1 files changed, 3182 insertions(+), 0 deletions(-) + create mode 100644 drivers/video/omap2/dss/dispc.c + +diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c +new file mode 100644 +index 0000000..d648475 +--- /dev/null ++++ b/drivers/video/omap2/dss/dispc.c +@@ -0,0 +1,3182 @@ ++/* ++ * linux/drivers/video/omap2/dss/dispc.c ++ * ++ * Copyright (C) 2009 Nokia Corporation ++ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> ++ * ++ * Some code and ideas taken from drivers/video/omap/ driver ++ * by Imre Deak. ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms of the GNU General Public License version 2 as published by ++ * the Free Software Foundation. ++ * ++ * This program is distributed in the hope that it will be useful, but WITHOUT ++ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or ++ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for ++ * more details. ++ * ++ * You should have received a copy of the GNU General Public License along with ++ * this program. If not, see <http://www.gnu.org/licenses/>. ++ */ ++ ++#define DSS_SUBSYS_NAME "DISPC" ++ ++#include <linux/kernel.h> ++#include <linux/dma-mapping.h> ++#include <linux/vmalloc.h> ++#include <linux/clk.h> ++#include <linux/io.h> ++#include <linux/jiffies.h> ++#include <linux/seq_file.h> ++#include <linux/delay.h> ++#include <linux/workqueue.h> ++ ++#include <mach/sram.h> ++#include <mach/board.h> ++#include <mach/clock.h> ++ ++#include <mach/display.h> ++ ++#include "dss.h" ++ ++/* DISPC */ ++#define DISPC_BASE 0x48050400 ++ ++#define DISPC_SZ_REGS SZ_1K ++ ++struct dispc_reg { u16 idx; }; ++ ++#define DISPC_REG(idx) ((const struct dispc_reg) { idx }) ++ ++/* DISPC common */ ++#define DISPC_REVISION DISPC_REG(0x0000) ++#define DISPC_SYSCONFIG DISPC_REG(0x0010) ++#define DISPC_SYSSTATUS DISPC_REG(0x0014) ++#define DISPC_IRQSTATUS DISPC_REG(0x0018) ++#define DISPC_IRQENABLE DISPC_REG(0x001C) ++#define DISPC_CONTROL DISPC_REG(0x0040) ++#define DISPC_CONFIG DISPC_REG(0x0044) ++#define DISPC_CAPABLE DISPC_REG(0x0048) ++#define DISPC_DEFAULT_COLOR0 DISPC_REG(0x004C) ++#define DISPC_DEFAULT_COLOR1 DISPC_REG(0x0050) ++#define DISPC_TRANS_COLOR0 DISPC_REG(0x0054) ++#define DISPC_TRANS_COLOR1 DISPC_REG(0x0058) ++#define DISPC_LINE_STATUS DISPC_REG(0x005C) ++#define DISPC_LINE_NUMBER DISPC_REG(0x0060) ++#define DISPC_TIMING_H DISPC_REG(0x0064) ++#define DISPC_TIMING_V DISPC_REG(0x0068) ++#define DISPC_POL_FREQ DISPC_REG(0x006C) ++#define DISPC_DIVISOR DISPC_REG(0x0070) ++#define DISPC_GLOBAL_ALPHA DISPC_REG(0x0074) ++#define DISPC_SIZE_DIG DISPC_REG(0x0078) ++#define DISPC_SIZE_LCD DISPC_REG(0x007C) ++ ++/* DISPC GFX plane */ ++#define DISPC_GFX_BA0 DISPC_REG(0x0080) ++#define DISPC_GFX_BA1 DISPC_REG(0x0084) ++#define DISPC_GFX_POSITION DISPC_REG(0x0088) ++#define DISPC_GFX_SIZE DISPC_REG(0x008C) ++#define DISPC_GFX_ATTRIBUTES DISPC_REG(0x00A0) ++#define DISPC_GFX_FIFO_THRESHOLD DISPC_REG(0x00A4) ++#define DISPC_GFX_FIFO_SIZE_STATUS DISPC_REG(0x00A8) ++#define DISPC_GFX_ROW_INC DISPC_REG(0x00AC) ++#define DISPC_GFX_PIXEL_INC DISPC_REG(0x00B0) ++#define DISPC_GFX_WINDOW_SKIP DISPC_REG(0x00B4) ++#define DISPC_GFX_TABLE_BA DISPC_REG(0x00B8) ++ ++#define DISPC_DATA_CYCLE1 DISPC_REG(0x01D4) ++#define DISPC_DATA_CYCLE2 DISPC_REG(0x01D8) ++#define DISPC_DATA_CYCLE3 DISPC_REG(0x01DC) ++ ++#define DISPC_CPR_COEF_R DISPC_REG(0x0220) ++#define DISPC_CPR_COEF_G DISPC_REG(0x0224) ++#define DISPC_CPR_COEF_B DISPC_REG(0x0228) ++ ++#define DISPC_GFX_PRELOAD DISPC_REG(0x022C) ++ ++/* DISPC Video plane, n = 0 for VID1 and n = 1 for VID2 */ ++#define DISPC_VID_REG(n, idx) DISPC_REG(0x00BC + (n)*0x90 + idx) ++ ++#define DISPC_VID_BA0(n) DISPC_VID_REG(n, 0x0000) ++#define DISPC_VID_BA1(n) DISPC_VID_REG(n, 0x0004) ++#define DISPC_VID_POSITION(n) DISPC_VID_REG(n, 0x0008) ++#define DISPC_VID_SIZE(n) DISPC_VID_REG(n, 0x000C) ++#define DISPC_VID_ATTRIBUTES(n) DISPC_VID_REG(n, 0x0010) ++#define DISPC_VID_FIFO_THRESHOLD(n) DISPC_VID_REG(n, 0x0014) ++#define DISPC_VID_FIFO_SIZE_STATUS(n) DISPC_VID_REG(n, 0x0018) ++#define DISPC_VID_ROW_INC(n) DISPC_VID_REG(n, 0x001C) ++#define DISPC_VID_PIXEL_INC(n) DISPC_VID_REG(n, 0x0020) ++#define DISPC_VID_FIR(n) DISPC_VID_REG(n, 0x0024) ++#define DISPC_VID_PICTURE_SIZE(n) DISPC_VID_REG(n, 0x0028) ++#define DISPC_VID_ACCU0(n) DISPC_VID_REG(n, 0x002C) ++#define DISPC_VID_ACCU1(n) DISPC_VID_REG(n, 0x0030) ++ ++/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */ ++#define DISPC_VID_FIR_COEF_H(n, i) DISPC_REG(0x00F0 + (n)*0x90 + (i)*0x8) ++/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */ ++#define DISPC_VID_FIR_COEF_HV(n, i) DISPC_REG(0x00F4 + (n)*0x90 + (i)*0x8) ++/* coef index i = {0, 1, 2, 3, 4} */ ++#define DISPC_VID_CONV_COEF(n, i) DISPC_REG(0x0130 + (n)*0x90 + (i)*0x4) ++/* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */ ++#define DISPC_VID_FIR_COEF_V(n, i) DISPC_REG(0x01E0 + (n)*0x20 + (i)*0x4) ++ ++#define DISPC_VID_PRELOAD(n) DISPC_REG(0x230 + (n)*0x04) ++ ++ ++#define DISPC_IRQ_MASK_ERROR (DISPC_IRQ_GFX_FIFO_UNDERFLOW | \ ++ DISPC_IRQ_OCP_ERR | \ ++ DISPC_IRQ_VID1_FIFO_UNDERFLOW | \ ++ DISPC_IRQ_VID2_FIFO_UNDERFLOW | \ ++ DISPC_IRQ_SYNC_LOST | \ ++ DISPC_IRQ_SYNC_LOST_DIGIT) ++ ++#define DISPC_MAX_NR_ISRS 8 ++ ++struct omap_dispc_isr_data { ++ omap_dispc_isr_t isr; ++ void *arg; ++ u32 mask; ++}; ++ ++#define REG_GET(idx, start, end) \ ++ FLD_GET(dispc_read_reg(idx), start, end) ++ ++#define REG_FLD_MOD(idx, val, start, end) \ ++ dispc_write_reg(idx, FLD_MOD(dispc_read_reg(idx), val, start, end)) ++ ++static const struct dispc_reg dispc_reg_att[] = { DISPC_GFX_ATTRIBUTES, ++ DISPC_VID_ATTRIBUTES(0), ++ DISPC_VID_ATTRIBUTES(1) }; ++ ++static struct { ++ void __iomem *base; ++ ++ struct clk *dpll4_m4_ck; ++ ++ unsigned long cache_req_pck; ++ unsigned long cache_prate; ++ struct dispc_clock_info cache_cinfo; ++ ++ u32 fifo_size[3]; ++ ++ spinlock_t irq_lock; ++ u32 irq_error_mask; ++ struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS]; ++ u32 error_irqs; ++ struct work_struct error_work; ++ ++ u32 ctx[DISPC_SZ_REGS / sizeof(u32)]; ++} dispc; ++ ++static void _omap_dispc_set_irqs(void); ++ ++static inline void dispc_write_reg(const struct dispc_reg idx, u32 val) ++{ ++ __raw_writel(val, dispc.base + idx.idx); ++} ++ ++static inline u32 dispc_read_reg(const struct dispc_reg idx) ++{ ++ return __raw_readl(dispc.base + idx.idx); ++} ++ ++#define SR(reg) \ ++ dispc.ctx[(DISPC_##reg).idx / sizeof(u32)] = dispc_read_reg(DISPC_##reg) ++#define RR(reg) \ ++ dispc_write_reg(DISPC_##reg, dispc.ctx[(DISPC_##reg).idx / sizeof(u32)]) ++ ++void dispc_save_context(void) ++{ ++ if (cpu_is_omap24xx()) ++ return; ++ ++ SR(SYSCONFIG); ++ SR(IRQENABLE); ++ SR(CONTROL); ++ SR(CONFIG); ++ SR(DEFAULT_COLOR0); ++ SR(DEFAULT_COLOR1); ++ SR(TRANS_COLOR0); ++ SR(TRANS_COLOR1); ++ SR(LINE_NUMBER); ++ SR(TIMING_H); ++ SR(TIMING_V); ++ SR(POL_FREQ); ++ SR(DIVISOR); ++ SR(GLOBAL_ALPHA); ++ SR(SIZE_DIG); ++ SR(SIZE_LCD); ++ ++ SR(GFX_BA0); ++ SR(GFX_BA1); ++ SR(GFX_POSITION); ++ SR(GFX_SIZE); ++ SR(GFX_ATTRIBUTES); ++ SR(GFX_FIFO_THRESHOLD); ++ SR(GFX_ROW_INC); ++ SR(GFX_PIXEL_INC); ++ SR(GFX_WINDOW_SKIP); ++ SR(GFX_TABLE_BA); ++ ++ SR(DATA_CYCLE1); ++ SR(DATA_CYCLE2); ++ SR(DATA_CYCLE3); ++ ++ SR(CPR_COEF_R); ++ SR(CPR_COEF_G); ++ SR(CPR_COEF_B); ++ ++ SR(GFX_PRELOAD); ++ ++ /* VID1 */ ++ SR(VID_BA0(0)); ++ SR(VID_BA1(0)); ++ SR(VID_POSITION(0)); ++ SR(VID_SIZE(0)); ++ SR(VID_ATTRIBUTES(0)); ++ SR(VID_FIFO_THRESHOLD(0)); ++ SR(VID_ROW_INC(0)); ++ SR(VID_PIXEL_INC(0)); ++ SR(VID_FIR(0)); ++ SR(VID_PICTURE_SIZE(0)); ++ SR(VID_ACCU0(0)); ++ SR(VID_ACCU1(0)); ++ ++ SR(VID_FIR_COEF_H(0, 0)); ++ SR(VID_FIR_COEF_H(0, 1)); ++ SR(VID_FIR_COEF_H(0, 2)); ++ SR(VID_FIR_COEF_H(0, 3)); ++ SR(VID_FIR_COEF_H(0, 4)); ++ SR(VID_FIR_COEF_H(0, 5)); ++ SR(VID_FIR_COEF_H(0, 6)); ++ SR(VID_FIR_COEF_H(0, 7)); ++ ++ SR(VID_FIR_COEF_HV(0, 0)); ++ SR(VID_FIR_COEF_HV(0, 1)); ++ SR(VID_FIR_COEF_HV(0, 2)); ++ SR(VID_FIR_COEF_HV(0, 3)); ++ SR(VID_FIR_COEF_HV(0, 4)); ++ SR(VID_FIR_COEF_HV(0, 5)); ++ SR(VID_FIR_COEF_HV(0, 6)); ++ SR(VID_FIR_COEF_HV(0, 7)); ++ ++ SR(VID_CONV_COEF(0, 0)); ++ SR(VID_CONV_COEF(0, 1)); ++ SR(VID_CONV_COEF(0, 2)); ++ SR(VID_CONV_COEF(0, 3)); ++ SR(VID_CONV_COEF(0, 4)); ++ ++ SR(VID_FIR_COEF_V(0, 0)); ++ SR(VID_FIR_COEF_V(0, 1)); ++ SR(VID_FIR_COEF_V(0, 2)); ++ SR(VID_FIR_COEF_V(0, 3)); ++ SR(VID_FIR_COEF_V(0, 4)); ++ SR(VID_FIR_COEF_V(0, 5)); ++ SR(VID_FIR_COEF_V(0, 6)); ++ SR(VID_FIR_COEF_V(0, 7)); ++ ++ SR(VID_PRELOAD(0)); ++ ++ /* VID2 */ ++ SR(VID_BA0(1)); ++ SR(VID_BA1(1)); ++ SR(VID_POSITION(1)); ++ SR(VID_SIZE(1)); ++ SR(VID_ATTRIBUTES(1)); ++ SR(VID_FIFO_THRESHOLD(1)); ++ SR(VID_ROW_INC(1)); ++ SR(VID_PIXEL_INC(1)); ++ SR(VID_FIR(1)); ++ SR(VID_PICTURE_SIZE(1)); ++ SR(VID_ACCU0(1)); ++ SR(VID_ACCU1(1)); ++ ++ SR(VID_FIR_COEF_H(1, 0)); ++ SR(VID_FIR_COEF_H(1, 1)); ++ SR(VID_FIR_COEF_H(1, 2)); ++ SR(VID_FIR_COEF_H(1, 3)); ++ SR(VID_FIR_COEF_H(1, 4)); ++ SR(VID_FIR_COEF_H(1, 5)); ++ SR(VID_FIR_COEF_H(1, 6)); ++ SR(VID_FIR_COEF_H(1, 7)); ++ ++ SR(VID_FIR_COEF_HV(1, 0)); ++ SR(VID_FIR_COEF_HV(1, 1)); ++ SR(VID_FIR_COEF_HV(1, 2)); ++ SR(VID_FIR_COEF_HV(1, 3)); ++ SR(VID_FIR_COEF_HV(1, 4)); ++ SR(VID_FIR_COEF_HV(1, 5)); ++ SR(VID_FIR_COEF_HV(1, 6)); ++ SR(VID_FIR_COEF_HV(1, 7)); ++ ++ SR(VID_CONV_COEF(1, 0)); ++ SR(VID_CONV_COEF(1, 1)); ++ SR(VID_CONV_COEF(1, 2)); ++ SR(VID_CONV_COEF(1, 3)); ++ SR(VID_CONV_COEF(1, 4)); ++ ++ SR(VID_FIR_COEF_V(1, 0)); ++ SR(VID_FIR_COEF_V(1, 1)); ++ SR(VID_FIR_COEF_V(1, 2)); ++ SR(VID_FIR_COEF_V(1, 3)); ++ SR(VID_FIR_COEF_V(1, 4)); ++ SR(VID_FIR_COEF_V(1, 5)); ++ SR(VID_FIR_COEF_V(1, 6)); ++ SR(VID_FIR_COEF_V(1, 7)); ++ ++ SR(VID_PRELOAD(1)); ++} ++ ++void dispc_restore_context(void) ++{ ++ RR(SYSCONFIG); ++ RR(IRQENABLE); ++ /*RR(CONTROL);*/ ++ RR(CONFIG); ++ RR(DEFAULT_COLOR0); ++ RR(DEFAULT_COLOR1); ++ RR(TRANS_COLOR0); ++ RR(TRANS_COLOR1); ++ RR(LINE_NUMBER); ++ RR(TIMING_H); ++ RR(TIMING_V); ++ RR(POL_FREQ); ++ RR(DIVISOR); ++ RR(GLOBAL_ALPHA); ++ RR(SIZE_DIG); ++ RR(SIZE_LCD); ++ ++ RR(GFX_BA0); ++ RR(GFX_BA1); ++ RR(GFX_POSITION); ++ RR(GFX_SIZE); ++ RR(GFX_ATTRIBUTES); ++ RR(GFX_FIFO_THRESHOLD); ++ RR(GFX_ROW_INC); ++ RR(GFX_PIXEL_INC); ++ RR(GFX_WINDOW_SKIP); ++ RR(GFX_TABLE_BA); ++ ++ RR(DATA_CYCLE1); ++ RR(DATA_CYCLE2); ++ RR(DATA_CYCLE3); ++ ++ RR(CPR_COEF_R); ++ RR(CPR_COEF_G); ++ RR(CPR_COEF_B); ++ ++ RR(GFX_PRELOAD); ++ ++ /* VID1 */ ++ RR(VID_BA0(0)); ++ RR(VID_BA1(0)); ++ RR(VID_POSITION(0)); ++ RR(VID_SIZE(0)); ++ RR(VID_ATTRIBUTES(0)); ++ RR(VID_FIFO_THRESHOLD(0)); ++ RR(VID_ROW_INC(0)); ++ RR(VID_PIXEL_INC(0)); ++ RR(VID_FIR(0)); ++ RR(VID_PICTURE_SIZE(0)); ++ RR(VID_ACCU0(0)); ++ RR(VID_ACCU1(0)); ++ ++ RR(VID_FIR_COEF_H(0, 0)); ++ RR(VID_FIR_COEF_H(0, 1)); ++ RR(VID_FIR_COEF_H(0, 2)); ++ RR(VID_FIR_COEF_H(0, 3)); ++ RR(VID_FIR_COEF_H(0, 4)); ++ RR(VID_FIR_COEF_H(0, 5)); ++ RR(VID_FIR_COEF_H(0, 6)); ++ RR(VID_FIR_COEF_H(0, 7)); ++ ++ RR(VID_FIR_COEF_HV(0, 0)); ++ RR(VID_FIR_COEF_HV(0, 1)); ++ RR(VID_FIR_COEF_HV(0, 2)); ++ RR(VID_FIR_COEF_HV(0, 3)); ++ RR(VID_FIR_COEF_HV(0, 4)); ++ RR(VID_FIR_COEF_HV(0, 5)); ++ RR(VID_FIR_COEF_HV(0, 6)); ++ RR(VID_FIR_COEF_HV(0, 7)); ++ ++ RR(VID_CONV_COEF(0, 0)); ++ RR(VID_CONV_COEF(0, 1)); ++ RR(VID_CONV_COEF(0, 2)); ++ RR(VID_CONV_COEF(0, 3)); ++ RR(VID_CONV_COEF(0, 4)); ++ ++ RR(VID_FIR_COEF_V(0, 0)); ++ RR(VID_FIR_COEF_V(0, 1)); ++ RR(VID_FIR_COEF_V(0, 2)); ++ RR(VID_FIR_COEF_V(0, 3)); ++ RR(VID_FIR_COEF_V(0, 4)); ++ RR(VID_FIR_COEF_V(0, 5)); ++ RR(VID_FIR_COEF_V(0, 6)); ++ RR(VID_FIR_COEF_V(0, 7)); ++ ++ RR(VID_PRELOAD(0)); ++ ++ /* VID2 */ ++ RR(VID_BA0(1)); ++ RR(VID_BA1(1)); ++ RR(VID_POSITION(1)); ++ RR(VID_SIZE(1)); ++ RR(VID_ATTRIBUTES(1)); ++ RR(VID_FIFO_THRESHOLD(1)); ++ RR(VID_ROW_INC(1)); ++ RR(VID_PIXEL_INC(1)); ++ RR(VID_FIR(1)); ++ RR(VID_PICTURE_SIZE(1)); ++ RR(VID_ACCU0(1)); ++ RR(VID_ACCU1(1)); ++ ++ RR(VID_FIR_COEF_H(1, 0)); ++ RR(VID_FIR_COEF_H(1, 1)); ++ RR(VID_FIR_COEF_H(1, 2)); ++ RR(VID_FIR_COEF_H(1, 3)); ++ RR(VID_FIR_COEF_H(1, 4)); ++ RR(VID_FIR_COEF_H(1, 5)); ++ RR(VID_FIR_COEF_H(1, 6)); ++ RR(VID_FIR_COEF_H(1, 7)); ++ ++ RR(VID_FIR_COEF_HV(1, 0)); ++ RR(VID_FIR_COEF_HV(1, 1)); ++ RR(VID_FIR_COEF_HV(1, 2)); ++ RR(VID_FIR_COEF_HV(1, 3)); ++ RR(VID_FIR_COEF_HV(1, 4)); ++ RR(VID_FIR_COEF_HV(1, 5)); ++ RR(VID_FIR_COEF_HV(1, 6)); ++ RR(VID_FIR_COEF_HV(1, 7)); ++ ++ RR(VID_CONV_COEF(1, 0)); ++ RR(VID_CONV_COEF(1, 1)); ++ RR(VID_CONV_COEF(1, 2)); ++ RR(VID_CONV_COEF(1, 3)); ++ RR(VID_CONV_COEF(1, 4)); ++ ++ RR(VID_FIR_COEF_V(1, 0)); ++ RR(VID_FIR_COEF_V(1, 1)); ++ RR(VID_FIR_COEF_V(1, 2)); ++ RR(VID_FIR_COEF_V(1, 3)); ++ RR(VID_FIR_COEF_V(1, 4)); ++ RR(VID_FIR_COEF_V(1, 5)); ++ RR(VID_FIR_COEF_V(1, 6)); ++ RR(VID_FIR_COEF_V(1, 7)); ++ ++ RR(VID_PRELOAD(1)); ++ ++ /* enable last, because LCD & DIGIT enable are here */ ++ RR(CONTROL); ++} ++ ++#undef SR ++#undef RR ++ ++static inline void enable_clocks(bool enable) ++{ ++ if (enable) ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ else ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++} ++ ++bool dispc_go_busy(enum omap_channel channel) ++{ ++ int bit; ++ ++ if (channel == OMAP_DSS_CHANNEL_LCD) ++ bit = 5; /* GOLCD */ ++ else ++ bit = 6; /* GODIGIT */ ++ ++ return REG_GET(DISPC_CONTROL, bit, bit) == 1; ++} ++ ++void dispc_go(enum omap_channel channel) ++{ ++ int bit; ++ ++ enable_clocks(1); ++ ++ if (channel == OMAP_DSS_CHANNEL_LCD) ++ bit = 0; /* LCDENABLE */ ++ else ++ bit = 1; /* DIGITALENABLE */ ++ ++ /* if the channel is not enabled, we don't need GO */ ++ if (REG_GET(DISPC_CONTROL, bit, bit) == 0) ++ goto end; ++ ++ if (channel == OMAP_DSS_CHANNEL_LCD) ++ bit = 5; /* GOLCD */ ++ else ++ bit = 6; /* GODIGIT */ ++ ++ if (REG_GET(DISPC_CONTROL, bit, bit) == 1) { ++ DSSERR("GO bit not down for channel %d\n", channel); ++ goto end; ++ } ++ ++ DSSDBG("GO %s\n", channel == OMAP_DSS_CHANNEL_LCD ? "LCD" : "DIGIT"); ++ ++ REG_FLD_MOD(DISPC_CONTROL, 1, bit, bit); ++end: ++ enable_clocks(0); ++} ++ ++static void _dispc_write_firh_reg(enum omap_plane plane, int reg, u32 value) ++{ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ dispc_write_reg(DISPC_VID_FIR_COEF_H(plane-1, reg), value); ++} ++ ++static void _dispc_write_firhv_reg(enum omap_plane plane, int reg, u32 value) ++{ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ dispc_write_reg(DISPC_VID_FIR_COEF_HV(plane-1, reg), value); ++} ++ ++static void _dispc_write_firv_reg(enum omap_plane plane, int reg, u32 value) ++{ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ dispc_write_reg(DISPC_VID_FIR_COEF_V(plane-1, reg), value); ++} ++ ++static void _dispc_set_scale_coef(enum omap_plane plane, int hscaleup, ++ int vscaleup, int five_taps) ++{ ++ /* Coefficients for horizontal up-sampling */ ++ static const u32 coef_hup[8] = { ++ 0x00800000, ++ 0x0D7CF800, ++ 0x1E70F5FF, ++ 0x335FF5FE, ++ 0xF74949F7, ++ 0xF55F33FB, ++ 0xF5701EFE, ++ 0xF87C0DFF, ++ }; ++ ++ /* Coefficients for horizontal down-sampling */ ++ static const u32 coef_hdown[8] = { ++ 0x24382400, ++ 0x28371FFE, ++ 0x2C361BFB, ++ 0x303516F9, ++ 0x11343311, ++ 0x1635300C, ++ 0x1B362C08, ++ 0x1F372804, ++ }; ++ ++ /* Coefficients for horizontal and vertical up-sampling */ ++ static const u32 coef_hvup[2][8] = { ++ { ++ 0x00800000, ++ 0x037B02FF, ++ 0x0C6F05FE, ++ 0x205907FB, ++ 0x00404000, ++ 0x075920FE, ++ 0x056F0CFF, ++ 0x027B0300, ++ }, ++ { ++ 0x00800000, ++ 0x0D7CF8FF, ++ 0x1E70F5FE, ++ 0x335FF5FB, ++ 0xF7404000, ++ 0xF55F33FE, ++ 0xF5701EFF, ++ 0xF87C0D00, ++ }, ++ }; ++ ++ /* Coefficients for horizontal and vertical down-sampling */ ++ static const u32 coef_hvdown[2][8] = { ++ { ++ 0x24382400, ++ 0x28391F04, ++ 0x2D381B08, ++ 0x3237170C, ++ 0x123737F7, ++ 0x173732F9, ++ 0x1B382DFB, ++ 0x1F3928FE, ++ }, ++ { ++ 0x24382400, ++ 0x28371F04, ++ 0x2C361B08, ++ 0x3035160C, ++ 0x113433F7, ++ 0x163530F9, ++ 0x1B362CFB, ++ 0x1F3728FE, ++ }, ++ }; ++ ++ /* Coefficients for vertical up-sampling */ ++ static const u32 coef_vup[8] = { ++ 0x00000000, ++ 0x0000FF00, ++ 0x0000FEFF, ++ 0x0000FBFE, ++ 0x000000F7, ++ 0x0000FEFB, ++ 0x0000FFFE, ++ 0x000000FF, ++ }; ++ ++ ++ /* Coefficients for vertical down-sampling */ ++ static const u32 coef_vdown[8] = { ++ 0x00000000, ++ 0x000004FE, ++ 0x000008FB, ++ 0x00000CF9, ++ 0x0000F711, ++ 0x0000F90C, ++ 0x0000FB08, ++ 0x0000FE04, ++ }; ++ ++ const u32 *h_coef; ++ const u32 *hv_coef; ++ const u32 *hv_coef_mod; ++ const u32 *v_coef; ++ int i; ++ ++ if (hscaleup) ++ h_coef = coef_hup; ++ else ++ h_coef = coef_hdown; ++ ++ if (vscaleup) { ++ hv_coef = coef_hvup[five_taps]; ++ v_coef = coef_vup; ++ ++ if (hscaleup) ++ hv_coef_mod = NULL; ++ else ++ hv_coef_mod = coef_hvdown[five_taps]; ++ } else { ++ hv_coef = coef_hvdown[five_taps]; ++ v_coef = coef_vdown; ++ ++ if (hscaleup) ++ hv_coef_mod = coef_hvup[five_taps]; ++ else ++ hv_coef_mod = NULL; ++ } ++ ++ for (i = 0; i < 8; i++) { ++ u32 h, hv; ++ ++ h = h_coef[i]; ++ ++ hv = hv_coef[i]; ++ ++ if (hv_coef_mod) { ++ hv &= 0xffffff00; ++ hv |= (hv_coef_mod[i] & 0xff); ++ } ++ ++ _dispc_write_firh_reg(plane, i, h); ++ _dispc_write_firhv_reg(plane, i, hv); ++ } ++ ++ if (!five_taps) ++ return; ++ ++ for (i = 0; i < 8; i++) { ++ u32 v; ++ v = v_coef[i]; ++ _dispc_write_firv_reg(plane, i, v); ++ } ++} ++ ++static void _dispc_setup_color_conv_coef(void) ++{ ++ const struct color_conv_coef { ++ int ry, rcr, rcb, gy, gcr, gcb, by, bcr, bcb; ++ int full_range; ++ } ctbl_bt601_5 = { ++ 298, 409, 0, 298, -208, -100, 298, 0, 517, 0, ++ }; ++ ++ const struct color_conv_coef *ct; ++ ++#define CVAL(x, y) (FLD_VAL(x, 26, 16) | FLD_VAL(y, 10, 0)) ++ ++ ct = &ctbl_bt601_5; ++ ++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 0), CVAL(ct->rcr, ct->ry)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 1), CVAL(ct->gy, ct->rcb)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 2), CVAL(ct->gcb, ct->gcr)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 3), CVAL(ct->bcr, ct->by)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(0, 4), CVAL(0, ct->bcb)); ++ ++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 0), CVAL(ct->rcr, ct->ry)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 1), CVAL(ct->gy, ct->rcb)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 2), CVAL(ct->gcb, ct->gcr)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 3), CVAL(ct->bcr, ct->by)); ++ dispc_write_reg(DISPC_VID_CONV_COEF(1, 4), CVAL(0, ct->bcb)); ++ ++#undef CVAL ++ ++ REG_FLD_MOD(DISPC_VID_ATTRIBUTES(0), ct->full_range, 11, 11); ++ REG_FLD_MOD(DISPC_VID_ATTRIBUTES(1), ct->full_range, 11, 11); ++} ++ ++ ++static void _dispc_set_plane_ba0(enum omap_plane plane, u32 paddr) ++{ ++ const struct dispc_reg ba0_reg[] = { DISPC_GFX_BA0, ++ DISPC_VID_BA0(0), ++ DISPC_VID_BA0(1) }; ++ ++ dispc_write_reg(ba0_reg[plane], paddr); ++} ++ ++static void _dispc_set_plane_ba1(enum omap_plane plane, u32 paddr) ++{ ++ const struct dispc_reg ba1_reg[] = { DISPC_GFX_BA1, ++ DISPC_VID_BA1(0), ++ DISPC_VID_BA1(1) }; ++ ++ dispc_write_reg(ba1_reg[plane], paddr); ++} ++ ++static void _dispc_set_plane_pos(enum omap_plane plane, int x, int y) ++{ ++ const struct dispc_reg pos_reg[] = { DISPC_GFX_POSITION, ++ DISPC_VID_POSITION(0), ++ DISPC_VID_POSITION(1) }; ++ ++ u32 val = FLD_VAL(y, 26, 16) | FLD_VAL(x, 10, 0); ++ dispc_write_reg(pos_reg[plane], val); ++} ++ ++static void _dispc_set_pic_size(enum omap_plane plane, int width, int height) ++{ ++ const struct dispc_reg siz_reg[] = { DISPC_GFX_SIZE, ++ DISPC_VID_PICTURE_SIZE(0), ++ DISPC_VID_PICTURE_SIZE(1) }; ++ u32 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); ++ dispc_write_reg(siz_reg[plane], val); ++} ++ ++static void _dispc_set_vid_size(enum omap_plane plane, int width, int height) ++{ ++ u32 val; ++ const struct dispc_reg vsi_reg[] = { DISPC_VID_SIZE(0), ++ DISPC_VID_SIZE(1) }; ++ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); ++ dispc_write_reg(vsi_reg[plane-1], val); ++} ++ ++static void _dispc_setup_global_alpha(enum omap_plane plane, u8 global_alpha) ++{ ++ ++ BUG_ON(plane == OMAP_DSS_VIDEO1); ++ ++ if (plane == OMAP_DSS_GFX) ++ REG_FLD_MOD(DISPC_GLOBAL_ALPHA, global_alpha, 7, 0); ++ else if (plane == OMAP_DSS_VIDEO2) ++ REG_FLD_MOD(DISPC_GLOBAL_ALPHA, global_alpha, 23, 16); ++} ++ ++static void _dispc_set_pix_inc(enum omap_plane plane, s32 inc) ++{ ++ const struct dispc_reg ri_reg[] = { DISPC_GFX_PIXEL_INC, ++ DISPC_VID_PIXEL_INC(0), ++ DISPC_VID_PIXEL_INC(1) }; ++ ++ dispc_write_reg(ri_reg[plane], inc); ++} ++ ++static void _dispc_set_row_inc(enum omap_plane plane, s32 inc) ++{ ++ const struct dispc_reg ri_reg[] = { DISPC_GFX_ROW_INC, ++ DISPC_VID_ROW_INC(0), ++ DISPC_VID_ROW_INC(1) }; ++ ++ dispc_write_reg(ri_reg[plane], inc); ++} ++ ++static void _dispc_set_color_mode(enum omap_plane plane, ++ enum omap_color_mode color_mode) ++{ ++ u32 m = 0; ++ ++ switch (color_mode) { ++ case OMAP_DSS_COLOR_CLUT1: ++ m = 0x0; break; ++ case OMAP_DSS_COLOR_CLUT2: ++ m = 0x1; break; ++ case OMAP_DSS_COLOR_CLUT4: ++ m = 0x2; break; ++ case OMAP_DSS_COLOR_CLUT8: ++ m = 0x3; break; ++ case OMAP_DSS_COLOR_RGB12U: ++ m = 0x4; break; ++ case OMAP_DSS_COLOR_ARGB16: ++ m = 0x5; break; ++ case OMAP_DSS_COLOR_RGB16: ++ m = 0x6; break; ++ case OMAP_DSS_COLOR_RGB24U: ++ m = 0x8; break; ++ case OMAP_DSS_COLOR_RGB24P: ++ m = 0x9; break; ++ case OMAP_DSS_COLOR_YUV2: ++ m = 0xa; break; ++ case OMAP_DSS_COLOR_UYVY: ++ m = 0xb; break; ++ case OMAP_DSS_COLOR_ARGB32: ++ m = 0xc; break; ++ case OMAP_DSS_COLOR_RGBA32: ++ m = 0xd; break; ++ case OMAP_DSS_COLOR_RGBX32: ++ m = 0xe; break; ++ default: ++ BUG(); break; ++ } ++ ++ REG_FLD_MOD(dispc_reg_att[plane], m, 4, 1); ++} ++ ++static void _dispc_set_channel_out(enum omap_plane plane, ++ enum omap_channel channel) ++{ ++ int shift; ++ u32 val; ++ ++ switch (plane) { ++ case OMAP_DSS_GFX: ++ shift = 8; ++ break; ++ case OMAP_DSS_VIDEO1: ++ case OMAP_DSS_VIDEO2: ++ shift = 16; ++ break; ++ default: ++ BUG(); ++ return; ++ } ++ ++ val = dispc_read_reg(dispc_reg_att[plane]); ++ val = FLD_MOD(val, channel, shift, shift); ++ dispc_write_reg(dispc_reg_att[plane], val); ++} ++ ++void dispc_set_burst_size(enum omap_plane plane, ++ enum omap_burst_size burst_size) ++{ ++ int shift; ++ u32 val; ++ ++ enable_clocks(1); ++ ++ switch (plane) { ++ case OMAP_DSS_GFX: ++ shift = 6; ++ break; ++ case OMAP_DSS_VIDEO1: ++ case OMAP_DSS_VIDEO2: ++ shift = 14; ++ break; ++ default: ++ BUG(); ++ return; ++ } ++ ++ val = dispc_read_reg(dispc_reg_att[plane]); ++ val = FLD_MOD(val, burst_size, shift+1, shift); ++ dispc_write_reg(dispc_reg_att[plane], val); ++ ++ enable_clocks(0); ++} ++ ++static void _dispc_set_vid_color_conv(enum omap_plane plane, bool enable) ++{ ++ u32 val; ++ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ val = dispc_read_reg(dispc_reg_att[plane]); ++ val = FLD_MOD(val, enable, 9, 9); ++ dispc_write_reg(dispc_reg_att[plane], val); ++} ++ ++void dispc_enable_replication(enum omap_plane plane, bool enable) ++{ ++ int bit; ++ ++ if (plane == OMAP_DSS_GFX) ++ bit = 5; ++ else ++ bit = 10; ++ ++ enable_clocks(1); ++ REG_FLD_MOD(dispc_reg_att[plane], enable, bit, bit); ++ enable_clocks(0); ++} ++ ++void dispc_set_lcd_size(u16 width, u16 height) ++{ ++ u32 val; ++ BUG_ON((width > (1 << 11)) || (height > (1 << 11))); ++ val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); ++ enable_clocks(1); ++ dispc_write_reg(DISPC_SIZE_LCD, val); ++ enable_clocks(0); ++} ++ ++void dispc_set_digit_size(u16 width, u16 height) ++{ ++ u32 val; ++ BUG_ON((width > (1 << 11)) || (height > (1 << 11))); ++ val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); ++ enable_clocks(1); ++ dispc_write_reg(DISPC_SIZE_DIG, val); ++ enable_clocks(0); ++} ++ ++static void dispc_read_plane_fifo_sizes(void) ++{ ++ const struct dispc_reg fsz_reg[] = { DISPC_GFX_FIFO_SIZE_STATUS, ++ DISPC_VID_FIFO_SIZE_STATUS(0), ++ DISPC_VID_FIFO_SIZE_STATUS(1) }; ++ u32 size; ++ int plane; ++ ++ enable_clocks(1); ++ ++ for (plane = 0; plane < ARRAY_SIZE(dispc.fifo_size); ++plane) { ++ if (cpu_is_omap24xx()) ++ size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 8, 0); ++ else if (cpu_is_omap34xx()) ++ size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 10, 0); ++ else ++ BUG(); ++ ++ dispc.fifo_size[plane] = size; ++ } ++ ++ enable_clocks(0); ++} ++ ++u32 dispc_get_plane_fifo_size(enum omap_plane plane) ++{ ++ return dispc.fifo_size[plane]; ++} ++ ++void dispc_setup_plane_fifo(enum omap_plane plane, u32 low, u32 high) ++{ ++ const struct dispc_reg ftrs_reg[] = { DISPC_GFX_FIFO_THRESHOLD, ++ DISPC_VID_FIFO_THRESHOLD(0), ++ DISPC_VID_FIFO_THRESHOLD(1) }; ++ enable_clocks(1); ++ ++ DSSDBG("fifo(%d) low/high old %u/%u, new %u/%u\n", ++ plane, ++ REG_GET(ftrs_reg[plane], 11, 0), ++ REG_GET(ftrs_reg[plane], 27, 16), ++ low, high); ++ ++ if (cpu_is_omap24xx()) ++ dispc_write_reg(ftrs_reg[plane], ++ FLD_VAL(high, 24, 16) | FLD_VAL(low, 8, 0)); ++ else ++ dispc_write_reg(ftrs_reg[plane], ++ FLD_VAL(high, 27, 16) | FLD_VAL(low, 11, 0)); ++ ++ enable_clocks(0); ++} ++ ++void dispc_enable_fifomerge(bool enable) ++{ ++ enable_clocks(1); ++ ++ DSSDBG("FIFO merge %s\n", enable ? "enabled" : "disabled"); ++ REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 14, 14); ++ ++ enable_clocks(0); ++} ++ ++static void _dispc_set_fir(enum omap_plane plane, int hinc, int vinc) ++{ ++ u32 val; ++ const struct dispc_reg fir_reg[] = { DISPC_VID_FIR(0), ++ DISPC_VID_FIR(1) }; ++ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ if (cpu_is_omap24xx()) ++ val = FLD_VAL(vinc, 27, 16) | FLD_VAL(hinc, 11, 0); ++ else ++ val = FLD_VAL(vinc, 28, 16) | FLD_VAL(hinc, 12, 0); ++ dispc_write_reg(fir_reg[plane-1], val); ++} ++ ++static void _dispc_set_vid_accu0(enum omap_plane plane, int haccu, int vaccu) ++{ ++ u32 val; ++ const struct dispc_reg ac0_reg[] = { DISPC_VID_ACCU0(0), ++ DISPC_VID_ACCU0(1) }; ++ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0); ++ dispc_write_reg(ac0_reg[plane-1], val); ++} ++ ++static void _dispc_set_vid_accu1(enum omap_plane plane, int haccu, int vaccu) ++{ ++ u32 val; ++ const struct dispc_reg ac1_reg[] = { DISPC_VID_ACCU1(0), ++ DISPC_VID_ACCU1(1) }; ++ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0); ++ dispc_write_reg(ac1_reg[plane-1], val); ++} ++ ++ ++static void _dispc_set_scaling(enum omap_plane plane, ++ u16 orig_width, u16 orig_height, ++ u16 out_width, u16 out_height, ++ bool ilace, bool five_taps, ++ bool fieldmode) ++{ ++ int fir_hinc; ++ int fir_vinc; ++ int hscaleup, vscaleup; ++ int accu0 = 0; ++ int accu1 = 0; ++ u32 l; ++ ++ BUG_ON(plane == OMAP_DSS_GFX); ++ ++ hscaleup = orig_width <= out_width; ++ vscaleup = orig_height <= out_height; ++ ++ _dispc_set_scale_coef(plane, hscaleup, vscaleup, five_taps); ++ ++ if (!orig_width || orig_width == out_width) ++ fir_hinc = 0; ++ else ++ fir_hinc = 1024 * orig_width / out_width; ++ ++ if (!orig_height || orig_height == out_height) ++ fir_vinc = 0; ++ else ++ fir_vinc = 1024 * orig_height / out_height; ++ ++ _dispc_set_fir(plane, fir_hinc, fir_vinc); ++ ++ l = dispc_read_reg(dispc_reg_att[plane]); ++ l &= ~((0x0f << 5) | (0x3 << 21)); ++ ++ l |= fir_hinc ? (1 << 5) : 0; ++ l |= fir_vinc ? (1 << 6) : 0; ++ ++ l |= hscaleup ? 0 : (1 << 7); ++ l |= vscaleup ? 0 : (1 << 8); ++ ++ l |= five_taps ? (1 << 21) : 0; ++ l |= five_taps ? (1 << 22) : 0; ++ ++ dispc_write_reg(dispc_reg_att[plane], l); ++ ++ /* ++ * field 0 = even field = bottom field ++ * field 1 = odd field = top field ++ */ ++ if (ilace && !fieldmode) { ++ accu1 = 0; ++ accu0 = (fir_vinc / 2) & 0x3ff; ++ if (accu0 >= 1024/2) { ++ accu1 = 1024/2; ++ accu0 -= accu1; ++ } ++ } ++ ++ _dispc_set_vid_accu0(plane, 0, accu0); ++ _dispc_set_vid_accu1(plane, 0, accu1); ++} ++ ++static void _dispc_set_rotation_attrs(enum omap_plane plane, u8 rotation, ++ bool mirroring, enum omap_color_mode color_mode) ++{ ++ if (color_mode == OMAP_DSS_COLOR_YUV2 || ++ color_mode == OMAP_DSS_COLOR_UYVY) { ++ int vidrot = 0; ++ ++ if (mirroring) { ++ switch (rotation) { ++ case 0: ++ vidrot = 2; ++ break; ++ case 1: ++ vidrot = 1; ++ break; ++ case 2: ++ vidrot = 0; ++ break; ++ case 3: ++ vidrot = 3; ++ break; ++ } ++ } else { ++ switch (rotation) { ++ case 0: ++ vidrot = 0; ++ break; ++ case 1: ++ vidrot = 1; ++ break; ++ case 2: ++ vidrot = 2; ++ break; ++ case 3: ++ vidrot = 3; ++ break; ++ } ++ } ++ ++ REG_FLD_MOD(dispc_reg_att[plane], vidrot, 13, 12); ++ ++ if (rotation == 1 || rotation == 3) ++ REG_FLD_MOD(dispc_reg_att[plane], 0x1, 18, 18); ++ else ++ REG_FLD_MOD(dispc_reg_att[plane], 0x0, 18, 18); ++ } else { ++ REG_FLD_MOD(dispc_reg_att[plane], 0, 13, 12); ++ REG_FLD_MOD(dispc_reg_att[plane], 0, 18, 18); ++ } ++} ++ ++static s32 pixinc(int pixels, u8 ps) ++{ ++ if (pixels == 1) ++ return 1; ++ else if (pixels > 1) ++ return 1 + (pixels - 1) * ps; ++ else if (pixels < 0) ++ return 1 - (-pixels + 1) * ps; ++ else ++ BUG(); ++} ++ ++static void calc_vrfb_rotation_offset(u8 rotation, bool mirror, ++ u16 screen_width, ++ u16 width, u16 height, ++ enum omap_color_mode color_mode, bool fieldmode, ++ unsigned int field_offset, ++ unsigned *offset0, unsigned *offset1, ++ s32 *row_inc, s32 *pix_inc) ++{ ++ u8 ps; ++ ++ switch (color_mode) { ++ case OMAP_DSS_COLOR_RGB16: ++ case OMAP_DSS_COLOR_ARGB16: ++ ps = 2; ++ break; ++ ++ case OMAP_DSS_COLOR_RGB24P: ++ ps = 3; ++ break; ++ ++ case OMAP_DSS_COLOR_RGB24U: ++ case OMAP_DSS_COLOR_ARGB32: ++ case OMAP_DSS_COLOR_RGBA32: ++ case OMAP_DSS_COLOR_RGBX32: ++ case OMAP_DSS_COLOR_YUV2: ++ case OMAP_DSS_COLOR_UYVY: ++ ps = 4; ++ break; ++ ++ default: ++ BUG(); ++ return; ++ } ++ ++ DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width, ++ width, height); ++ ++ /* ++ * field 0 = even field = bottom field ++ * field 1 = odd field = top field ++ */ ++ switch (rotation + mirror * 4) { ++ case 0: ++ case 2: ++ /* ++ * If the pixel format is YUV or UYVY divide the width ++ * of the image by 2 for 0 and 180 degree rotation. ++ */ ++ if (color_mode == OMAP_DSS_COLOR_YUV2 || ++ color_mode == OMAP_DSS_COLOR_UYVY) ++ width = width >> 1; ++ case 1: ++ case 3: ++ *offset1 = 0; ++ if (field_offset) ++ *offset0 = field_offset * screen_width * ps; ++ else ++ *offset0 = 0; ++ ++ *row_inc = pixinc(1 + (screen_width - width) + ++ (fieldmode ? screen_width : 0), ++ ps); ++ *pix_inc = pixinc(1, ps); ++ break; ++ ++ case 4: ++ case 6: ++ /* If the pixel format is YUV or UYVY divide the width ++ * of the image by 2 for 0 degree and 180 degree ++ */ ++ if (color_mode == OMAP_DSS_COLOR_YUV2 || ++ color_mode == OMAP_DSS_COLOR_UYVY) ++ width = width >> 1; ++ case 5: ++ case 7: ++ *offset1 = 0; ++ if (field_offset) ++ *offset0 = field_offset * screen_width * ps; ++ else ++ *offset0 = 0; ++ *row_inc = pixinc(1 - (screen_width + width) - ++ (fieldmode ? screen_width : 0), ++ ps); ++ *pix_inc = pixinc(1, ps); ++ break; ++ ++ default: ++ BUG(); ++ } ++} ++ ++static void calc_dma_rotation_offset(u8 rotation, bool mirror, ++ u16 screen_width, ++ u16 width, u16 height, ++ enum omap_color_mode color_mode, bool fieldmode, ++ unsigned int field_offset, ++ unsigned *offset0, unsigned *offset1, ++ s32 *row_inc, s32 *pix_inc) ++{ ++ u8 ps; ++ u16 fbw, fbh; ++ ++ switch (color_mode) { ++ case OMAP_DSS_COLOR_RGB16: ++ case OMAP_DSS_COLOR_ARGB16: ++ ps = 2; ++ break; ++ ++ case OMAP_DSS_COLOR_RGB24P: ++ ps = 3; ++ break; ++ ++ case OMAP_DSS_COLOR_RGB24U: ++ case OMAP_DSS_COLOR_ARGB32: ++ case OMAP_DSS_COLOR_RGBA32: ++ case OMAP_DSS_COLOR_RGBX32: ++ ps = 4; ++ break; ++ ++ case OMAP_DSS_COLOR_YUV2: ++ case OMAP_DSS_COLOR_UYVY: ++ ps = 2; ++ break; ++ default: ++ BUG(); ++ return; ++ } ++ ++ DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width, ++ width, height); ++ ++ /* width & height are overlay sizes, convert to fb sizes */ ++ ++ if (rotation == 0 || rotation == 2) { ++ fbw = width; ++ fbh = height; ++ } else { ++ fbw = height; ++ fbh = width; ++ } ++ ++ /* ++ * field 0 = even field = bottom field ++ * field 1 = odd field = top field ++ */ ++ switch (rotation + mirror * 4) { ++ case 0: ++ *offset1 = 0; ++ if (field_offset) ++ *offset0 = *offset1 + field_offset * screen_width * ps; ++ else ++ *offset0 = *offset1; ++ *row_inc = pixinc(1 + (screen_width - fbw) + ++ (fieldmode ? screen_width : 0), ++ ps); ++ *pix_inc = pixinc(1, ps); ++ break; ++ case 1: ++ *offset1 = screen_width * (fbh - 1) * ps; ++ if (field_offset) ++ *offset0 = *offset1 + field_offset * ps; ++ else ++ *offset0 = *offset1; ++ *row_inc = pixinc(screen_width * (fbh - 1) + 1 + ++ (fieldmode ? 1 : 0), ps); ++ *pix_inc = pixinc(-screen_width, ps); ++ break; ++ case 2: ++ *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps; ++ if (field_offset) ++ *offset0 = *offset1 - field_offset * screen_width * ps; ++ else ++ *offset0 = *offset1; ++ *row_inc = pixinc(-1 - ++ (screen_width - fbw) - ++ (fieldmode ? screen_width : 0), ++ ps); ++ *pix_inc = pixinc(-1, ps); ++ break; ++ case 3: ++ *offset1 = (fbw - 1) * ps; ++ if (field_offset) ++ *offset0 = *offset1 - field_offset * ps; ++ else ++ *offset0 = *offset1; ++ *row_inc = pixinc(-screen_width * (fbh - 1) - 1 - ++ (fieldmode ? 1 : 0), ps); ++ *pix_inc = pixinc(screen_width, ps); ++ break; ++ ++ /* mirroring */ ++ case 0 + 4: ++ *offset1 = (fbw - 1) * ps; ++ if (field_offset) ++ *offset0 = *offset1 + field_offset * screen_width * ps; ++ else ++ *offset0 = *offset1; ++ *row_inc = pixinc(screen_width * 2 - 1 + ++ (fieldmode ? screen_width : 0), ++ ps); ++ *pix_inc = pixinc(-1, ps); ++ break; ++ ++ case 1 + 4: ++ *offset1 = 0; ++ if (field_offset) ++ *offset0 = *offset1 + field_offset * ps; ++ else ++ *offset0 = *offset1; ++ *row_inc = pixinc(-screen_width * (fbh - 1) + 1 + ++ (fieldmode ? 1 : 0), ++ ps); ++ *pix_inc = pixinc(screen_width, ps); ++ break; ++ ++ case 2 + 4: ++ *offset1 = screen_width * (fbh - 1) * ps; ++ if (field_offset) ++ *offset0 = *offset1 - field_offset * screen_width * ps; ++ else ++ *offset0 = *offset1; ++ *row_inc = pixinc(1 - screen_width * 2 - ++ (fieldmode ? screen_width : 0), ++ ps); ++ *pix_inc = pixinc(1, ps); ++ break; ++ ++ case 3 + 4: ++ *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps; ++ if (field_offset) ++ *offset0 = *offset1 - field_offset * ps; ++ else ++ *offset0 = *offset1; ++ *row_inc = pixinc(screen_width * (fbh - 1) - 1 - ++ (fieldmode ? 1 : 0), ++ ps); ++ *pix_inc = pixinc(-screen_width, ps); ++ break; ++ ++ default: ++ BUG(); ++ } ++} ++ ++static unsigned long calc_fclk_five_taps(u16 width, u16 height, ++ u16 out_width, u16 out_height, enum omap_color_mode color_mode) ++{ ++ u32 fclk = 0; ++ /* FIXME venc pclk? */ ++ u64 tmp, pclk = dispc_pclk_rate(); ++ ++ if (height > out_height) { ++ /* FIXME get real display PPL */ ++ unsigned int ppl = 800; ++ ++ tmp = pclk * height * out_width; ++ do_div(tmp, 2 * out_height * ppl); ++ fclk = tmp; ++ ++ if (height > 2 * out_height && ppl != out_width) { ++ tmp = pclk * (height - 2 * out_height) * out_width; ++ do_div(tmp, 2 * out_height * (ppl - out_width)); ++ fclk = max(fclk, (u32) tmp); ++ } ++ } ++ ++ if (width > out_width) { ++ tmp = pclk * width; ++ do_div(tmp, out_width); ++ fclk = max(fclk, (u32) tmp); ++ ++ if (color_mode == OMAP_DSS_COLOR_RGB24U) ++ fclk <<= 1; ++ } ++ ++ return fclk; ++} ++ ++static unsigned long calc_fclk(u16 width, u16 height, ++ u16 out_width, u16 out_height) ++{ ++ unsigned int hf, vf; ++ ++ /* ++ * FIXME how to determine the 'A' factor ++ * for the no downscaling case ? ++ */ ++ ++ if (width > 3 * out_width) ++ hf = 4; ++ else if (width > 2 * out_width) ++ hf = 3; ++ else if (width > out_width) ++ hf = 2; ++ else ++ hf = 1; ++ ++ if (height > out_height) ++ vf = 2; ++ else ++ vf = 1; ++ ++ /* FIXME venc pclk? */ ++ return dispc_pclk_rate() * vf * hf; ++} ++ ++void dispc_set_channel_out(enum omap_plane plane, enum omap_channel channel_out) ++{ ++ enable_clocks(1); ++ _dispc_set_channel_out(plane, channel_out); ++ enable_clocks(0); ++} ++ ++static int _dispc_setup_plane(enum omap_plane plane, ++ u32 paddr, u16 screen_width, ++ u16 pos_x, u16 pos_y, ++ u16 width, u16 height, ++ u16 out_width, u16 out_height, ++ enum omap_color_mode color_mode, ++ bool ilace, ++ enum omap_dss_rotation_type rotation_type, ++ u8 rotation, int mirror, ++ u8 global_alpha) ++{ ++ const int maxdownscale = cpu_is_omap34xx() ? 4 : 2; ++ bool five_taps = 0; ++ bool fieldmode = 0; ++ int cconv = 0; ++ unsigned offset0, offset1; ++ s32 row_inc; ++ s32 pix_inc; ++ u16 frame_height = height; ++ unsigned int field_offset = 0; ++ ++ if (paddr == 0) ++ return -EINVAL; ++ ++ if (ilace && height == out_height) ++ fieldmode = 1; ++ ++ if (ilace) { ++ if (fieldmode) ++ height /= 2; ++ pos_y /= 2; ++ out_height /= 2; ++ ++ DSSDBG("adjusting for ilace: height %d, pos_y %d, " ++ "out_height %d\n", ++ height, pos_y, out_height); ++ } ++ ++ if (plane == OMAP_DSS_GFX) { ++ if (width != out_width || height != out_height) ++ return -EINVAL; ++ ++ switch (color_mode) { ++ case OMAP_DSS_COLOR_ARGB16: ++ case OMAP_DSS_COLOR_RGB16: ++ case OMAP_DSS_COLOR_RGB24P: ++ case OMAP_DSS_COLOR_RGB24U: ++ case OMAP_DSS_COLOR_ARGB32: ++ case OMAP_DSS_COLOR_RGBA32: ++ case OMAP_DSS_COLOR_RGBX32: ++ break; ++ ++ default: ++ return -EINVAL; ++ } ++ } else { ++ /* video plane */ ++ ++ unsigned long fclk = 0; ++ ++ if (out_width < width / maxdownscale || ++ out_width > width * 8) ++ return -EINVAL; ++ ++ if (out_height < height / maxdownscale || ++ out_height > height * 8) ++ return -EINVAL; ++ ++ switch (color_mode) { ++ case OMAP_DSS_COLOR_RGB16: ++ case OMAP_DSS_COLOR_RGB24P: ++ case OMAP_DSS_COLOR_RGB24U: ++ case OMAP_DSS_COLOR_RGBX32: ++ break; ++ ++ case OMAP_DSS_COLOR_ARGB16: ++ case OMAP_DSS_COLOR_ARGB32: ++ case OMAP_DSS_COLOR_RGBA32: ++ if (plane == OMAP_DSS_VIDEO1) ++ return -EINVAL; ++ break; ++ ++ case OMAP_DSS_COLOR_YUV2: ++ case OMAP_DSS_COLOR_UYVY: ++ cconv = 1; ++ break; ++ ++ default: ++ return -EINVAL; ++ } ++ ++ /* Must use 5-tap filter? */ ++ five_taps = height > out_height * 2; ++ ++ if (!five_taps) { ++ fclk = calc_fclk(width, height, ++ out_width, out_height); ++ ++ /* Try 5-tap filter if 3-tap fclk is too high */ ++ if (cpu_is_omap34xx() && height > out_height && ++ fclk > dispc_fclk_rate()) ++ five_taps = true; ++ } ++ ++ if (width > (2048 >> five_taps)) ++ return -EINVAL; ++ ++ if (five_taps) ++ fclk = calc_fclk_five_taps(width, height, ++ out_width, out_height, color_mode); ++ ++ DSSDBG("required fclk rate = %lu Hz\n", fclk); ++ DSSDBG("current fclk rate = %lu Hz\n", dispc_fclk_rate()); ++ ++ if (fclk > dispc_fclk_rate()) { ++ DSSERR("failed to set up scaling, " ++ "required fclk rate = %lu Hz, " ++ "current fclk rate = %lu Hz\n", ++ fclk, dispc_fclk_rate()); ++ return -EINVAL; ++ } ++ } ++ ++ if (ilace && !fieldmode) { ++ /* ++ * when downscaling the bottom field may have to start several ++ * source lines below the top field. Unfortunately ACCUI ++ * registers will only hold the fractional part of the offset ++ * so the integer part must be added to the base address of the ++ * bottom field. ++ */ ++ if (!height || height == out_height) ++ field_offset = 0; ++ else ++ field_offset = height / out_height / 2; ++ } ++ ++ /* Fields are independent but interleaved in memory. */ ++ if (fieldmode) ++ field_offset = 1; ++ ++ if (rotation_type == OMAP_DSS_ROT_DMA) ++ calc_dma_rotation_offset(rotation, mirror, ++ screen_width, width, frame_height, color_mode, ++ fieldmode, field_offset, ++ &offset0, &offset1, &row_inc, &pix_inc); ++ else ++ calc_vrfb_rotation_offset(rotation, mirror, ++ screen_width, width, frame_height, color_mode, ++ fieldmode, field_offset, ++ &offset0, &offset1, &row_inc, &pix_inc); ++ ++ DSSDBG("offset0 %u, offset1 %u, row_inc %d, pix_inc %d\n", ++ offset0, offset1, row_inc, pix_inc); ++ ++ _dispc_set_color_mode(plane, color_mode); ++ ++ _dispc_set_plane_ba0(plane, paddr + offset0); ++ _dispc_set_plane_ba1(plane, paddr + offset1); ++ ++ _dispc_set_row_inc(plane, row_inc); ++ _dispc_set_pix_inc(plane, pix_inc); ++ ++ DSSDBG("%d,%d %dx%d -> %dx%d\n", pos_x, pos_y, width, height, ++ out_width, out_height); ++ ++ _dispc_set_plane_pos(plane, pos_x, pos_y); ++ ++ _dispc_set_pic_size(plane, width, height); ++ ++ if (plane != OMAP_DSS_GFX) { ++ _dispc_set_scaling(plane, width, height, ++ out_width, out_height, ++ ilace, five_taps, fieldmode); ++ _dispc_set_vid_size(plane, out_width, out_height); ++ _dispc_set_vid_color_conv(plane, cconv); ++ } ++ ++ _dispc_set_rotation_attrs(plane, rotation, mirror, color_mode); ++ ++ if (plane != OMAP_DSS_VIDEO1) ++ _dispc_setup_global_alpha(plane, global_alpha); ++ ++ return 0; ++} ++ ++static void _dispc_enable_plane(enum omap_plane plane, bool enable) ++{ ++ REG_FLD_MOD(dispc_reg_att[plane], enable ? 1 : 0, 0, 0); ++} ++ ++static void dispc_disable_isr(void *data, u32 mask) ++{ ++ struct completion *compl = data; ++ complete(compl); ++} ++ ++static void _enable_lcd_out(bool enable) ++{ ++ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 0, 0); ++} ++ ++void dispc_enable_lcd_out(bool enable) ++{ ++ struct completion frame_done_completion; ++ bool is_on; ++ int r; ++ ++ enable_clocks(1); ++ ++ /* When we disable LCD output, we need to wait until frame is done. ++ * Otherwise the DSS is still working, and turning off the clocks ++ * prevents DSS from going to OFF mode */ ++ is_on = REG_GET(DISPC_CONTROL, 0, 0); ++ ++ if (!enable && is_on) { ++ init_completion(&frame_done_completion); ++ ++ r = omap_dispc_register_isr(dispc_disable_isr, ++ &frame_done_completion, ++ DISPC_IRQ_FRAMEDONE); ++ ++ if (r) ++ DSSERR("failed to register FRAMEDONE isr\n"); ++ } ++ ++ _enable_lcd_out(enable); ++ ++ if (!enable && is_on) { ++ if (!wait_for_completion_timeout(&frame_done_completion, ++ msecs_to_jiffies(100))) ++ DSSERR("timeout waiting for FRAME DONE\n"); ++ ++ r = omap_dispc_unregister_isr(dispc_disable_isr, ++ &frame_done_completion, ++ DISPC_IRQ_FRAMEDONE); ++ ++ if (r) ++ DSSERR("failed to unregister FRAMEDONE isr\n"); ++ } ++ ++ enable_clocks(0); ++} ++ ++static void _enable_digit_out(bool enable) ++{ ++ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 1, 1); ++} ++ ++void dispc_enable_digit_out(bool enable) ++{ ++ struct completion frame_done_completion; ++ int r; ++ ++ enable_clocks(1); ++ ++ if (REG_GET(DISPC_CONTROL, 1, 1) == enable) { ++ enable_clocks(0); ++ return; ++ } ++ ++ if (enable) { ++ unsigned long flags; ++ /* When we enable digit output, we'll get an extra digit ++ * sync lost interrupt, that we need to ignore */ ++ spin_lock_irqsave(&dispc.irq_lock, flags); ++ dispc.irq_error_mask &= ~DISPC_IRQ_SYNC_LOST_DIGIT; ++ _omap_dispc_set_irqs(); ++ spin_unlock_irqrestore(&dispc.irq_lock, flags); ++ } ++ ++ /* When we disable digit output, we need to wait until fields are done. ++ * Otherwise the DSS is still working, and turning off the clocks ++ * prevents DSS from going to OFF mode. And when enabling, we need to ++ * wait for the extra sync losts */ ++ init_completion(&frame_done_completion); ++ ++ r = omap_dispc_register_isr(dispc_disable_isr, &frame_done_completion, ++ DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD); ++ if (r) ++ DSSERR("failed to register EVSYNC isr\n"); ++ ++ _enable_digit_out(enable); ++ ++ /* XXX I understand from TRM that we should only wait for the ++ * current field to complete. But it seems we have to wait ++ * for both fields */ ++ if (!wait_for_completion_timeout(&frame_done_completion, ++ msecs_to_jiffies(100))) ++ DSSERR("timeout waiting for EVSYNC\n"); ++ ++ if (!wait_for_completion_timeout(&frame_done_completion, ++ msecs_to_jiffies(100))) ++ DSSERR("timeout waiting for EVSYNC\n"); ++ ++ r = omap_dispc_unregister_isr(dispc_disable_isr, ++ &frame_done_completion, ++ DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD); ++ if (r) ++ DSSERR("failed to unregister EVSYNC isr\n"); ++ ++ if (enable) { ++ unsigned long flags; ++ spin_lock_irqsave(&dispc.irq_lock, flags); ++ dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR; ++ dispc_write_reg(DISPC_IRQSTATUS, DISPC_IRQ_SYNC_LOST_DIGIT); ++ _omap_dispc_set_irqs(); ++ spin_unlock_irqrestore(&dispc.irq_lock, flags); ++ } ++ ++ enable_clocks(0); ++} ++ ++void dispc_lcd_enable_signal_polarity(bool act_high) ++{ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONTROL, act_high ? 1 : 0, 29, 29); ++ enable_clocks(0); ++} ++ ++void dispc_lcd_enable_signal(bool enable) ++{ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 28, 28); ++ enable_clocks(0); ++} ++ ++void dispc_pck_free_enable(bool enable) ++{ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 27, 27); ++ enable_clocks(0); ++} ++ ++void dispc_enable_fifohandcheck(bool enable) ++{ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 16, 16); ++ enable_clocks(0); ++} ++ ++ ++void dispc_set_lcd_display_type(enum omap_lcd_display_type type) ++{ ++ int mode; ++ ++ switch (type) { ++ case OMAP_DSS_LCD_DISPLAY_STN: ++ mode = 0; ++ break; ++ ++ case OMAP_DSS_LCD_DISPLAY_TFT: ++ mode = 1; ++ break; ++ ++ default: ++ BUG(); ++ return; ++ } ++ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONTROL, mode, 3, 3); ++ enable_clocks(0); ++} ++ ++void dispc_set_loadmode(enum omap_dss_load_mode mode) ++{ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONFIG, mode, 2, 1); ++ enable_clocks(0); ++} ++ ++ ++void dispc_set_default_color(enum omap_channel channel, u32 color) ++{ ++ const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0, ++ DISPC_DEFAULT_COLOR1 }; ++ ++ enable_clocks(1); ++ dispc_write_reg(def_reg[channel], color); ++ enable_clocks(0); ++} ++ ++u32 dispc_get_default_color(enum omap_channel channel) ++{ ++ const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0, ++ DISPC_DEFAULT_COLOR1 }; ++ u32 l; ++ ++ BUG_ON(channel != OMAP_DSS_CHANNEL_DIGIT && ++ channel != OMAP_DSS_CHANNEL_LCD); ++ ++ enable_clocks(1); ++ l = dispc_read_reg(def_reg[channel]); ++ enable_clocks(0); ++ ++ return l; ++} ++ ++void dispc_set_trans_key(enum omap_channel ch, ++ enum omap_dss_trans_key_type type, ++ u32 trans_key) ++{ ++ const struct dispc_reg tr_reg[] = { ++ DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 }; ++ ++ enable_clocks(1); ++ if (ch == OMAP_DSS_CHANNEL_LCD) ++ REG_FLD_MOD(DISPC_CONFIG, type, 11, 11); ++ else /* OMAP_DSS_CHANNEL_DIGIT */ ++ REG_FLD_MOD(DISPC_CONFIG, type, 13, 13); ++ ++ dispc_write_reg(tr_reg[ch], trans_key); ++ enable_clocks(0); ++} ++ ++void dispc_get_trans_key(enum omap_channel ch, ++ enum omap_dss_trans_key_type *type, ++ u32 *trans_key) ++{ ++ const struct dispc_reg tr_reg[] = { ++ DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 }; ++ ++ enable_clocks(1); ++ if (type) { ++ if (ch == OMAP_DSS_CHANNEL_LCD) ++ *type = REG_GET(DISPC_CONFIG, 11, 11); ++ else if (ch == OMAP_DSS_CHANNEL_DIGIT) ++ *type = REG_GET(DISPC_CONFIG, 13, 13); ++ else ++ BUG(); ++ } ++ ++ if (trans_key) ++ *trans_key = dispc_read_reg(tr_reg[ch]); ++ enable_clocks(0); ++} ++ ++void dispc_enable_trans_key(enum omap_channel ch, bool enable) ++{ ++ enable_clocks(1); ++ if (ch == OMAP_DSS_CHANNEL_LCD) ++ REG_FLD_MOD(DISPC_CONFIG, enable, 10, 10); ++ else /* OMAP_DSS_CHANNEL_DIGIT */ ++ REG_FLD_MOD(DISPC_CONFIG, enable, 12, 12); ++ enable_clocks(0); ++} ++void dispc_enable_alpha_blending(enum omap_channel ch, bool enable) ++{ ++ enable_clocks(1); ++ if (ch == OMAP_DSS_CHANNEL_LCD) ++ REG_FLD_MOD(DISPC_CONFIG, enable, 18, 18); ++ else /* OMAP_DSS_CHANNEL_DIGIT */ ++ REG_FLD_MOD(DISPC_CONFIG, enable, 19, 19); ++ enable_clocks(0); ++} ++bool dispc_alpha_blending_enabled(enum omap_channel ch) ++{ ++ bool enabled; ++ ++ enable_clocks(1); ++ if (ch == OMAP_DSS_CHANNEL_LCD) ++ enabled = REG_GET(DISPC_CONFIG, 18, 18); ++ else if (ch == OMAP_DSS_CHANNEL_DIGIT) ++ enabled = REG_GET(DISPC_CONFIG, 18, 18); ++ else ++ BUG(); ++ enable_clocks(0); ++ ++ return enabled; ++ ++} ++ ++ ++bool dispc_trans_key_enabled(enum omap_channel ch) ++{ ++ bool enabled; ++ ++ enable_clocks(1); ++ if (ch == OMAP_DSS_CHANNEL_LCD) ++ enabled = REG_GET(DISPC_CONFIG, 10, 10); ++ else if (ch == OMAP_DSS_CHANNEL_DIGIT) ++ enabled = REG_GET(DISPC_CONFIG, 12, 12); ++ else ++ BUG(); ++ enable_clocks(0); ++ ++ return enabled; ++} ++ ++ ++void dispc_set_tft_data_lines(u8 data_lines) ++{ ++ int code; ++ ++ switch (data_lines) { ++ case 12: ++ code = 0; ++ break; ++ case 16: ++ code = 1; ++ break; ++ case 18: ++ code = 2; ++ break; ++ case 24: ++ code = 3; ++ break; ++ default: ++ BUG(); ++ return; ++ } ++ ++ enable_clocks(1); ++ REG_FLD_MOD(DISPC_CONTROL, code, 9, 8); ++ enable_clocks(0); ++} ++ ++void dispc_set_parallel_interface_mode(enum omap_parallel_interface_mode mode) ++{ ++ u32 l; ++ int stallmode; ++ int gpout0 = 1; ++ int gpout1; ++ ++ switch (mode) { ++ case OMAP_DSS_PARALLELMODE_BYPASS: ++ stallmode = 0; ++ gpout1 = 1; ++ break; ++ ++ case OMAP_DSS_PARALLELMODE_RFBI: ++ stallmode = 1; ++ gpout1 = 0; ++ break; ++ ++ case OMAP_DSS_PARALLELMODE_DSI: ++ stallmode = 1; ++ gpout1 = 1; ++ break; ++ ++ default: ++ BUG(); ++ return; ++ } ++ ++ enable_clocks(1); ++ ++ l = dispc_read_reg(DISPC_CONTROL); ++ ++ l = FLD_MOD(l, stallmode, 11, 11); ++ l = FLD_MOD(l, gpout0, 15, 15); ++ l = FLD_MOD(l, gpout1, 16, 16); ++ ++ dispc_write_reg(DISPC_CONTROL, l); ++ ++ enable_clocks(0); ++} ++ ++static bool _dispc_lcd_timings_ok(int hsw, int hfp, int hbp, ++ int vsw, int vfp, int vbp) ++{ ++ if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) { ++ if (hsw < 1 || hsw > 64 || ++ hfp < 1 || hfp > 256 || ++ hbp < 1 || hbp > 256 || ++ vsw < 1 || vsw > 64 || ++ vfp < 0 || vfp > 255 || ++ vbp < 0 || vbp > 255) ++ return false; ++ } else { ++ if (hsw < 1 || hsw > 256 || ++ hfp < 1 || hfp > 4096 || ++ hbp < 1 || hbp > 4096 || ++ vsw < 1 || vsw > 256 || ++ vfp < 0 || vfp > 4095 || ++ vbp < 0 || vbp > 4095) ++ return false; ++ } ++ ++ return true; ++} ++ ++bool dispc_lcd_timings_ok(struct omap_video_timings *timings) ++{ ++ return _dispc_lcd_timings_ok(timings->hsw, timings->hfp, ++ timings->hbp, timings->vsw, ++ timings->vfp, timings->vbp); ++} ++ ++static void _dispc_set_lcd_timings(int hsw, int hfp, int hbp, ++ int vsw, int vfp, int vbp) ++{ ++ u32 timing_h, timing_v; ++ ++ if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) { ++ timing_h = FLD_VAL(hsw-1, 5, 0) | FLD_VAL(hfp-1, 15, 8) | ++ FLD_VAL(hbp-1, 27, 20); ++ ++ timing_v = FLD_VAL(vsw-1, 5, 0) | FLD_VAL(vfp, 15, 8) | ++ FLD_VAL(vbp, 27, 20); ++ } else { ++ timing_h = FLD_VAL(hsw-1, 7, 0) | FLD_VAL(hfp-1, 19, 8) | ++ FLD_VAL(hbp-1, 31, 20); ++ ++ timing_v = FLD_VAL(vsw-1, 7, 0) | FLD_VAL(vfp, 19, 8) | ++ FLD_VAL(vbp, 31, 20); ++ } ++ ++ enable_clocks(1); ++ dispc_write_reg(DISPC_TIMING_H, timing_h); ++ dispc_write_reg(DISPC_TIMING_V, timing_v); ++ enable_clocks(0); ++} ++ ++/* change name to mode? */ ++void dispc_set_lcd_timings(struct omap_video_timings *timings) ++{ ++ unsigned xtot, ytot; ++ unsigned long ht, vt; ++ ++ if (!_dispc_lcd_timings_ok(timings->hsw, timings->hfp, ++ timings->hbp, timings->vsw, ++ timings->vfp, timings->vbp)) ++ BUG(); ++ ++ _dispc_set_lcd_timings(timings->hsw, timings->hfp, timings->hbp, ++ timings->vsw, timings->vfp, timings->vbp); ++ ++ dispc_set_lcd_size(timings->x_res, timings->y_res); ++ ++ xtot = timings->x_res + timings->hfp + timings->hsw + timings->hbp; ++ ytot = timings->y_res + timings->vfp + timings->vsw + timings->vbp; ++ ++ ht = (timings->pixel_clock * 1000) / xtot; ++ vt = (timings->pixel_clock * 1000) / xtot / ytot; ++ ++ DSSDBG("xres %u yres %u\n", timings->x_res, timings->y_res); ++ DSSDBG("pck %u\n", timings->pixel_clock); ++ DSSDBG("hsw %d hfp %d hbp %d vsw %d vfp %d vbp %d\n", ++ timings->hsw, timings->hfp, timings->hbp, ++ timings->vsw, timings->vfp, timings->vbp); ++ ++ DSSDBG("hsync %luHz, vsync %luHz\n", ht, vt); ++} ++ ++void dispc_set_lcd_divisor(u16 lck_div, u16 pck_div) ++{ ++ BUG_ON(lck_div < 1); ++ BUG_ON(pck_div < 2); ++ ++ enable_clocks(1); ++ dispc_write_reg(DISPC_DIVISOR, ++ FLD_VAL(lck_div, 23, 16) | FLD_VAL(pck_div, 7, 0)); ++ enable_clocks(0); ++} ++ ++static void dispc_get_lcd_divisor(int *lck_div, int *pck_div) ++{ ++ u32 l; ++ l = dispc_read_reg(DISPC_DIVISOR); ++ *lck_div = FLD_GET(l, 23, 16); ++ *pck_div = FLD_GET(l, 7, 0); ++} ++ ++unsigned long dispc_fclk_rate(void) ++{ ++ unsigned long r = 0; ++ ++ if (dss_get_dispc_clk_source() == 0) ++ r = dss_clk_get_rate(DSS_CLK_FCK1); ++ else ++#ifdef CONFIG_OMAP2_DSS_DSI ++ r = dsi_get_dsi1_pll_rate(); ++#else ++ BUG(); ++#endif ++ return r; ++} ++ ++unsigned long dispc_lclk_rate(void) ++{ ++ int lcd; ++ unsigned long r; ++ u32 l; ++ ++ l = dispc_read_reg(DISPC_DIVISOR); ++ ++ lcd = FLD_GET(l, 23, 16); ++ ++ r = dispc_fclk_rate(); ++ ++ return r / lcd; ++} ++ ++unsigned long dispc_pclk_rate(void) ++{ ++ int lcd, pcd; ++ unsigned long r; ++ u32 l; ++ ++ l = dispc_read_reg(DISPC_DIVISOR); ++ ++ lcd = FLD_GET(l, 23, 16); ++ pcd = FLD_GET(l, 7, 0); ++ ++ r = dispc_fclk_rate(); ++ ++ return r / lcd / pcd; ++} ++ ++void dispc_dump_clocks(struct seq_file *s) ++{ ++ int lcd, pcd; ++ ++ enable_clocks(1); ++ ++ dispc_get_lcd_divisor(&lcd, &pcd); ++ ++ seq_printf(s, "- dispc -\n"); ++ ++ seq_printf(s, "dispc fclk source = %s\n", ++ dss_get_dispc_clk_source() == 0 ? ++ "dss1_alwon_fclk" : "dsi1_pll_fclk"); ++ ++ seq_printf(s, "pixel clk = %lu / %d / %d = %lu\n", ++ dispc_fclk_rate(), ++ lcd, pcd, ++ dispc_pclk_rate()); ++ ++ enable_clocks(0); ++} ++ ++void dispc_dump_regs(struct seq_file *s) ++{ ++#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dispc_read_reg(r)) ++ ++ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); ++ ++ DUMPREG(DISPC_REVISION); ++ DUMPREG(DISPC_SYSCONFIG); ++ DUMPREG(DISPC_SYSSTATUS); ++ DUMPREG(DISPC_IRQSTATUS); ++ DUMPREG(DISPC_IRQENABLE); ++ DUMPREG(DISPC_CONTROL); ++ DUMPREG(DISPC_CONFIG); ++ DUMPREG(DISPC_CAPABLE); ++ DUMPREG(DISPC_DEFAULT_COLOR0); ++ DUMPREG(DISPC_DEFAULT_COLOR1); ++ DUMPREG(DISPC_TRANS_COLOR0); ++ DUMPREG(DISPC_TRANS_COLOR1); ++ DUMPREG(DISPC_LINE_STATUS); ++ DUMPREG(DISPC_LINE_NUMBER); ++ DUMPREG(DISPC_TIMING_H); ++ DUMPREG(DISPC_TIMING_V); ++ DUMPREG(DISPC_POL_FREQ); ++ DUMPREG(DISPC_DIVISOR); ++ DUMPREG(DISPC_GLOBAL_ALPHA); ++ DUMPREG(DISPC_SIZE_DIG); ++ DUMPREG(DISPC_SIZE_LCD); ++ ++ DUMPREG(DISPC_GFX_BA0); ++ DUMPREG(DISPC_GFX_BA1); ++ DUMPREG(DISPC_GFX_POSITION); ++ DUMPREG(DISPC_GFX_SIZE); ++ DUMPREG(DISPC_GFX_ATTRIBUTES); ++ DUMPREG(DISPC_GFX_FIFO_THRESHOLD); ++ DUMPREG(DISPC_GFX_FIFO_SIZE_STATUS); ++ DUMPREG(DISPC_GFX_ROW_INC); ++ DUMPREG(DISPC_GFX_PIXEL_INC); ++ DUMPREG(DISPC_GFX_WINDOW_SKIP); ++ DUMPREG(DISPC_GFX_TABLE_BA); ++ ++ DUMPREG(DISPC_DATA_CYCLE1); ++ DUMPREG(DISPC_DATA_CYCLE2); ++ DUMPREG(DISPC_DATA_CYCLE3); ++ ++ DUMPREG(DISPC_CPR_COEF_R); ++ DUMPREG(DISPC_CPR_COEF_G); ++ DUMPREG(DISPC_CPR_COEF_B); ++ ++ DUMPREG(DISPC_GFX_PRELOAD); ++ ++ DUMPREG(DISPC_VID_BA0(0)); ++ DUMPREG(DISPC_VID_BA1(0)); ++ DUMPREG(DISPC_VID_POSITION(0)); ++ DUMPREG(DISPC_VID_SIZE(0)); ++ DUMPREG(DISPC_VID_ATTRIBUTES(0)); ++ DUMPREG(DISPC_VID_FIFO_THRESHOLD(0)); ++ DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(0)); ++ DUMPREG(DISPC_VID_ROW_INC(0)); ++ DUMPREG(DISPC_VID_PIXEL_INC(0)); ++ DUMPREG(DISPC_VID_FIR(0)); ++ DUMPREG(DISPC_VID_PICTURE_SIZE(0)); ++ DUMPREG(DISPC_VID_ACCU0(0)); ++ DUMPREG(DISPC_VID_ACCU1(0)); ++ ++ DUMPREG(DISPC_VID_BA0(1)); ++ DUMPREG(DISPC_VID_BA1(1)); ++ DUMPREG(DISPC_VID_POSITION(1)); ++ DUMPREG(DISPC_VID_SIZE(1)); ++ DUMPREG(DISPC_VID_ATTRIBUTES(1)); ++ DUMPREG(DISPC_VID_FIFO_THRESHOLD(1)); ++ DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(1)); ++ DUMPREG(DISPC_VID_ROW_INC(1)); ++ DUMPREG(DISPC_VID_PIXEL_INC(1)); ++ DUMPREG(DISPC_VID_FIR(1)); ++ DUMPREG(DISPC_VID_PICTURE_SIZE(1)); ++ DUMPREG(DISPC_VID_ACCU0(1)); ++ DUMPREG(DISPC_VID_ACCU1(1)); ++ ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 0)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 1)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 2)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 3)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 5)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 6)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(0, 7)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 0)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 1)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 2)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 3)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 5)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 6)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(0, 7)); ++ DUMPREG(DISPC_VID_CONV_COEF(0, 0)); ++ DUMPREG(DISPC_VID_CONV_COEF(0, 1)); ++ DUMPREG(DISPC_VID_CONV_COEF(0, 2)); ++ DUMPREG(DISPC_VID_CONV_COEF(0, 3)); ++ DUMPREG(DISPC_VID_CONV_COEF(0, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 0)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 1)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 2)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 3)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 5)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 6)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(0, 7)); ++ ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 0)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 1)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 2)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 3)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 5)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 6)); ++ DUMPREG(DISPC_VID_FIR_COEF_H(1, 7)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 0)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 1)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 2)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 3)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 5)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 6)); ++ DUMPREG(DISPC_VID_FIR_COEF_HV(1, 7)); ++ DUMPREG(DISPC_VID_CONV_COEF(1, 0)); ++ DUMPREG(DISPC_VID_CONV_COEF(1, 1)); ++ DUMPREG(DISPC_VID_CONV_COEF(1, 2)); ++ DUMPREG(DISPC_VID_CONV_COEF(1, 3)); ++ DUMPREG(DISPC_VID_CONV_COEF(1, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 0)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 1)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 2)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 3)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 4)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 5)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 6)); ++ DUMPREG(DISPC_VID_FIR_COEF_V(1, 7)); ++ ++ DUMPREG(DISPC_VID_PRELOAD(0)); ++ DUMPREG(DISPC_VID_PRELOAD(1)); ++ ++ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); ++#undef DUMPREG ++} ++ ++static void _dispc_set_pol_freq(bool onoff, bool rf, bool ieo, bool ipc, ++ bool ihs, bool ivs, u8 acbi, u8 acb) ++{ ++ u32 l = 0; ++ ++ DSSDBG("onoff %d rf %d ieo %d ipc %d ihs %d ivs %d acbi %d acb %d\n", ++ onoff, rf, ieo, ipc, ihs, ivs, acbi, acb); ++ ++ l |= FLD_VAL(onoff, 17, 17); ++ l |= FLD_VAL(rf, 16, 16); ++ l |= FLD_VAL(ieo, 15, 15); ++ l |= FLD_VAL(ipc, 14, 14); ++ l |= FLD_VAL(ihs, 13, 13); ++ l |= FLD_VAL(ivs, 12, 12); ++ l |= FLD_VAL(acbi, 11, 8); ++ l |= FLD_VAL(acb, 7, 0); ++ ++ enable_clocks(1); ++ dispc_write_reg(DISPC_POL_FREQ, l); ++ enable_clocks(0); ++} ++ ++void dispc_set_pol_freq(enum omap_panel_config config, u8 acbi, u8 acb) ++{ ++ _dispc_set_pol_freq((config & OMAP_DSS_LCD_ONOFF) != 0, ++ (config & OMAP_DSS_LCD_RF) != 0, ++ (config & OMAP_DSS_LCD_IEO) != 0, ++ (config & OMAP_DSS_LCD_IPC) != 0, ++ (config & OMAP_DSS_LCD_IHS) != 0, ++ (config & OMAP_DSS_LCD_IVS) != 0, ++ acbi, acb); ++} ++ ++void find_lck_pck_divs(bool is_tft, unsigned long req_pck, unsigned long fck, ++ u16 *lck_div, u16 *pck_div) ++{ ++ u16 pcd_min = is_tft ? 2 : 3; ++ unsigned long best_pck; ++ u16 best_ld, cur_ld; ++ u16 best_pd, cur_pd; ++ ++ best_pck = 0; ++ best_ld = 0; ++ best_pd = 0; ++ ++ for (cur_ld = 1; cur_ld <= 255; ++cur_ld) { ++ unsigned long lck = fck / cur_ld; ++ ++ for (cur_pd = pcd_min; cur_pd <= 255; ++cur_pd) { ++ unsigned long pck = lck / cur_pd; ++ long old_delta = abs(best_pck - req_pck); ++ long new_delta = abs(pck - req_pck); ++ ++ if (best_pck == 0 || new_delta < old_delta) { ++ best_pck = pck; ++ best_ld = cur_ld; ++ best_pd = cur_pd; ++ ++ if (pck == req_pck) ++ goto found; ++ } ++ ++ if (pck < req_pck) ++ break; ++ } ++ ++ if (lck / pcd_min < req_pck) ++ break; ++ } ++ ++found: ++ *lck_div = best_ld; ++ *pck_div = best_pd; ++} ++ ++int dispc_calc_clock_div(bool is_tft, unsigned long req_pck, ++ struct dispc_clock_info *cinfo) ++{ ++ unsigned long prate; ++ struct dispc_clock_info cur, best; ++ int match = 0; ++ int min_fck_per_pck; ++ unsigned long fck_rate = dss_clk_get_rate(DSS_CLK_FCK1); ++ ++ if (cpu_is_omap34xx()) ++ prate = clk_get_rate(clk_get_parent(dispc.dpll4_m4_ck)); ++ else ++ prate = 0; ++ ++ if (req_pck == dispc.cache_req_pck && ++ ((cpu_is_omap34xx() && prate == dispc.cache_prate) || ++ dispc.cache_cinfo.fck == fck_rate)) { ++ DSSDBG("dispc clock info found from cache.\n"); ++ *cinfo = dispc.cache_cinfo; ++ return 0; ++ } ++ ++ min_fck_per_pck = CONFIG_OMAP2_DSS_MIN_FCK_PER_PCK; ++ ++ if (min_fck_per_pck && ++ req_pck * min_fck_per_pck > DISPC_MAX_FCK) { ++ DSSERR("Requested pixel clock not possible with the current " ++ "OMAP2_DSS_MIN_FCK_PER_PCK setting. Turning " ++ "the constraint off.\n"); ++ min_fck_per_pck = 0; ++ } ++ ++retry: ++ memset(&cur, 0, sizeof(cur)); ++ memset(&best, 0, sizeof(best)); ++ ++ if (cpu_is_omap24xx()) { ++ /* XXX can we change the clock on omap2? */ ++ cur.fck = dss_clk_get_rate(DSS_CLK_FCK1); ++ cur.fck_div = 1; ++ ++ match = 1; ++ ++ find_lck_pck_divs(is_tft, req_pck, cur.fck, ++ &cur.lck_div, &cur.pck_div); ++ ++ cur.lck = cur.fck / cur.lck_div; ++ cur.pck = cur.lck / cur.pck_div; ++ ++ best = cur; ++ ++ goto found; ++ } else if (cpu_is_omap34xx()) { ++ for (cur.fck_div = 16; cur.fck_div > 0; --cur.fck_div) { ++ cur.fck = prate / cur.fck_div * 2; ++ ++ if (cur.fck > DISPC_MAX_FCK) ++ continue; ++ ++ if (min_fck_per_pck && ++ cur.fck < req_pck * min_fck_per_pck) ++ continue; ++ ++ match = 1; ++ ++ find_lck_pck_divs(is_tft, req_pck, cur.fck, ++ &cur.lck_div, &cur.pck_div); ++ ++ cur.lck = cur.fck / cur.lck_div; ++ cur.pck = cur.lck / cur.pck_div; ++ ++ if (abs(cur.pck - req_pck) < abs(best.pck - req_pck)) { ++ best = cur; ++ ++ if (cur.pck == req_pck) ++ goto found; ++ } ++ } ++ } else { ++ BUG(); ++ } ++ ++found: ++ if (!match) { ++ if (min_fck_per_pck) { ++ DSSERR("Could not find suitable clock settings.\n" ++ "Turning FCK/PCK constraint off and" ++ "trying again.\n"); ++ min_fck_per_pck = 0; ++ goto retry; ++ } ++ ++ DSSERR("Could not find suitable clock settings.\n"); ++ ++ return -EINVAL; ++ } ++ ++ if (cinfo) ++ *cinfo = best; ++ ++ dispc.cache_req_pck = req_pck; ++ dispc.cache_prate = prate; ++ dispc.cache_cinfo = best; ++ ++ return 0; ++} ++ ++int dispc_set_clock_div(struct dispc_clock_info *cinfo) ++{ ++ unsigned long prate; ++ int r; ++ ++ if (cpu_is_omap34xx()) { ++ prate = clk_get_rate(clk_get_parent(dispc.dpll4_m4_ck)); ++ DSSDBG("dpll4_m4 = %ld\n", prate); ++ } ++ ++ DSSDBG("fck = %ld (%d)\n", cinfo->fck, cinfo->fck_div); ++ DSSDBG("lck = %ld (%d)\n", cinfo->lck, cinfo->lck_div); ++ DSSDBG("pck = %ld (%d)\n", cinfo->pck, cinfo->pck_div); ++ ++ if (cpu_is_omap34xx()) { ++ r = clk_set_rate(dispc.dpll4_m4_ck, prate / cinfo->fck_div); ++ if (r) ++ return r; ++ } ++ ++ dispc_set_lcd_divisor(cinfo->lck_div, cinfo->pck_div); ++ ++ return 0; ++} ++ ++int dispc_get_clock_div(struct dispc_clock_info *cinfo) ++{ ++ cinfo->fck = dss_clk_get_rate(DSS_CLK_FCK1); ++ ++ if (cpu_is_omap34xx()) { ++ unsigned long prate; ++ prate = clk_get_rate(clk_get_parent(dispc.dpll4_m4_ck)); ++ cinfo->fck_div = prate / (cinfo->fck / 2); ++ } else { ++ cinfo->fck_div = 0; ++ } ++ ++ cinfo->lck_div = REG_GET(DISPC_DIVISOR, 23, 16); ++ cinfo->pck_div = REG_GET(DISPC_DIVISOR, 7, 0); ++ ++ cinfo->lck = cinfo->fck / cinfo->lck_div; ++ cinfo->pck = cinfo->lck / cinfo->pck_div; ++ ++ return 0; ++} ++ ++/* dispc.irq_lock has to be locked by the caller */ ++static void _omap_dispc_set_irqs(void) ++{ ++ u32 mask; ++ u32 old_mask; ++ int i; ++ struct omap_dispc_isr_data *isr_data; ++ ++ mask = dispc.irq_error_mask; ++ ++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { ++ isr_data = &dispc.registered_isr[i]; ++ ++ if (isr_data->isr == NULL) ++ continue; ++ ++ mask |= isr_data->mask; ++ } ++ ++ enable_clocks(1); ++ ++ old_mask = dispc_read_reg(DISPC_IRQENABLE); ++ /* clear the irqstatus for newly enabled irqs */ ++ dispc_write_reg(DISPC_IRQSTATUS, (mask ^ old_mask) & mask); ++ ++ dispc_write_reg(DISPC_IRQENABLE, mask); ++ ++ enable_clocks(0); ++} ++ ++int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask) ++{ ++ int i; ++ int ret; ++ unsigned long flags; ++ struct omap_dispc_isr_data *isr_data; ++ ++ if (isr == NULL) ++ return -EINVAL; ++ ++ spin_lock_irqsave(&dispc.irq_lock, flags); ++ ++ /* check for duplicate entry */ ++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { ++ isr_data = &dispc.registered_isr[i]; ++ if (isr_data->isr == isr && isr_data->arg == arg && ++ isr_data->mask == mask) { ++ ret = -EINVAL; ++ goto err; ++ } ++ } ++ ++ isr_data = NULL; ++ ret = -EBUSY; ++ ++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { ++ isr_data = &dispc.registered_isr[i]; ++ ++ if (isr_data->isr != NULL) ++ continue; ++ ++ isr_data->isr = isr; ++ isr_data->arg = arg; ++ isr_data->mask = mask; ++ ret = 0; ++ ++ break; ++ } ++ ++ _omap_dispc_set_irqs(); ++ ++ spin_unlock_irqrestore(&dispc.irq_lock, flags); ++ ++ return 0; ++err: ++ spin_unlock_irqrestore(&dispc.irq_lock, flags); ++ ++ return ret; ++} ++EXPORT_SYMBOL(omap_dispc_register_isr); ++ ++int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask) ++{ ++ int i; ++ unsigned long flags; ++ int ret = -EINVAL; ++ struct omap_dispc_isr_data *isr_data; ++ ++ spin_lock_irqsave(&dispc.irq_lock, flags); ++ ++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { ++ isr_data = &dispc.registered_isr[i]; ++ if (isr_data->isr != isr || isr_data->arg != arg || ++ isr_data->mask != mask) ++ continue; ++ ++ /* found the correct isr */ ++ ++ isr_data->isr = NULL; ++ isr_data->arg = NULL; ++ isr_data->mask = 0; ++ ++ ret = 0; ++ break; ++ } ++ ++ if (ret == 0) ++ _omap_dispc_set_irqs(); ++ ++ spin_unlock_irqrestore(&dispc.irq_lock, flags); ++ ++ return ret; ++} ++EXPORT_SYMBOL(omap_dispc_unregister_isr); ++ ++#ifdef DEBUG ++static void print_irq_status(u32 status) ++{ ++ if ((status & dispc.irq_error_mask) == 0) ++ return; ++ ++ printk(KERN_DEBUG "DISPC IRQ: 0x%x: ", status); ++ ++#define PIS(x) \ ++ if (status & DISPC_IRQ_##x) \ ++ printk(#x " "); ++ PIS(GFX_FIFO_UNDERFLOW); ++ PIS(OCP_ERR); ++ PIS(VID1_FIFO_UNDERFLOW); ++ PIS(VID2_FIFO_UNDERFLOW); ++ PIS(SYNC_LOST); ++ PIS(SYNC_LOST_DIGIT); ++#undef PIS ++ ++ printk("\n"); ++} ++#endif ++ ++/* Called from dss.c. Note that we don't touch clocks here, ++ * but we presume they are on because we got an IRQ. However, ++ * an irq handler may turn the clocks off, so we may not have ++ * clock later in the function. */ ++void dispc_irq_handler(void) ++{ ++ int i; ++ u32 irqstatus; ++ u32 handledirqs = 0; ++ u32 unhandled_errors; ++ struct omap_dispc_isr_data *isr_data; ++ struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS]; ++ ++ spin_lock(&dispc.irq_lock); ++ ++ irqstatus = dispc_read_reg(DISPC_IRQSTATUS); ++ ++#ifdef DEBUG ++ if (dss_debug) ++ print_irq_status(irqstatus); ++#endif ++ /* Ack the interrupt. Do it here before clocks are possibly turned ++ * off */ ++ dispc_write_reg(DISPC_IRQSTATUS, irqstatus); ++ ++ /* make a copy and unlock, so that isrs can unregister ++ * themselves */ ++ memcpy(registered_isr, dispc.registered_isr, ++ sizeof(registered_isr)); ++ ++ spin_unlock(&dispc.irq_lock); ++ ++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { ++ isr_data = ®istered_isr[i]; ++ ++ if (!isr_data->isr) ++ continue; ++ ++ if (isr_data->mask & irqstatus) { ++ isr_data->isr(isr_data->arg, irqstatus); ++ handledirqs |= isr_data->mask; ++ } ++ } ++ ++ spin_lock(&dispc.irq_lock); ++ ++ unhandled_errors = irqstatus & ~handledirqs & dispc.irq_error_mask; ++ ++ if (unhandled_errors) { ++ dispc.error_irqs |= unhandled_errors; ++ ++ dispc.irq_error_mask &= ~unhandled_errors; ++ _omap_dispc_set_irqs(); ++ ++ schedule_work(&dispc.error_work); ++ } ++ ++ spin_unlock(&dispc.irq_lock); ++} ++ ++static void dispc_error_worker(struct work_struct *work) ++{ ++ int i; ++ u32 errors; ++ unsigned long flags; ++ ++ spin_lock_irqsave(&dispc.irq_lock, flags); ++ errors = dispc.error_irqs; ++ dispc.error_irqs = 0; ++ spin_unlock_irqrestore(&dispc.irq_lock, flags); ++ ++ if (errors & DISPC_IRQ_GFX_FIFO_UNDERFLOW) { ++ DSSERR("GFX_FIFO_UNDERFLOW, disabling GFX\n"); ++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) { ++ struct omap_overlay *ovl; ++ ovl = omap_dss_get_overlay(i); ++ ++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) ++ continue; ++ ++ if (ovl->id == 0) { ++ dispc_enable_plane(ovl->id, 0); ++ dispc_go(ovl->manager->id); ++ mdelay(50); ++ break; ++ } ++ } ++ } ++ ++ if (errors & DISPC_IRQ_VID1_FIFO_UNDERFLOW) { ++ DSSERR("VID1_FIFO_UNDERFLOW, disabling VID1\n"); ++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) { ++ struct omap_overlay *ovl; ++ ovl = omap_dss_get_overlay(i); ++ ++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) ++ continue; ++ ++ if (ovl->id == 1) { ++ dispc_enable_plane(ovl->id, 0); ++ dispc_go(ovl->manager->id); ++ mdelay(50); ++ break; ++ } ++ } ++ } ++ ++ if (errors & DISPC_IRQ_VID2_FIFO_UNDERFLOW) { ++ DSSERR("VID2_FIFO_UNDERFLOW, disabling VID2\n"); ++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) { ++ struct omap_overlay *ovl; ++ ovl = omap_dss_get_overlay(i); ++ ++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) ++ continue; ++ ++ if (ovl->id == 2) { ++ dispc_enable_plane(ovl->id, 0); ++ dispc_go(ovl->manager->id); ++ mdelay(50); ++ break; ++ } ++ } ++ } ++ ++ if (errors & DISPC_IRQ_SYNC_LOST) { ++ struct omap_overlay_manager *manager = NULL; ++ bool enable = false; ++ ++ DSSERR("SYNC_LOST, disabling LCD\n"); ++ ++ for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) { ++ struct omap_overlay_manager *mgr; ++ mgr = omap_dss_get_overlay_manager(i); ++ ++ if (mgr->id == OMAP_DSS_CHANNEL_LCD) { ++ manager = mgr; ++ enable = mgr->device->state == ++ OMAP_DSS_DISPLAY_ACTIVE; ++ mgr->device->disable(mgr->device); ++ break; ++ } ++ } ++ ++ if (manager) { ++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) { ++ struct omap_overlay *ovl; ++ ovl = omap_dss_get_overlay(i); ++ ++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) ++ continue; ++ ++ if (ovl->id != 0 && ovl->manager == manager) ++ dispc_enable_plane(ovl->id, 0); ++ } ++ ++ dispc_go(manager->id); ++ mdelay(50); ++ if (enable) ++ manager->device->enable(manager->device); ++ } ++ } ++ ++ if (errors & DISPC_IRQ_SYNC_LOST_DIGIT) { ++ struct omap_overlay_manager *manager = NULL; ++ bool enable = false; ++ ++ DSSERR("SYNC_LOST_DIGIT, disabling TV\n"); ++ ++ for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) { ++ struct omap_overlay_manager *mgr; ++ mgr = omap_dss_get_overlay_manager(i); ++ ++ if (mgr->id == OMAP_DSS_CHANNEL_DIGIT) { ++ manager = mgr; ++ enable = mgr->device->state == ++ OMAP_DSS_DISPLAY_ACTIVE; ++ mgr->device->disable(mgr->device); ++ break; ++ } ++ } ++ ++ if (manager) { ++ for (i = 0; i < omap_dss_get_num_overlays(); ++i) { ++ struct omap_overlay *ovl; ++ ovl = omap_dss_get_overlay(i); ++ ++ if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) ++ continue; ++ ++ if (ovl->id != 0 && ovl->manager == manager) ++ dispc_enable_plane(ovl->id, 0); ++ } ++ ++ dispc_go(manager->id); ++ mdelay(50); ++ if (enable) ++ manager->device->enable(manager->device); ++ } ++ } ++ ++ if (errors & DISPC_IRQ_OCP_ERR) { ++ DSSERR("OCP_ERR\n"); ++ for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) { ++ struct omap_overlay_manager *mgr; ++ mgr = omap_dss_get_overlay_manager(i); ++ ++ if (mgr->caps & OMAP_DSS_OVL_CAP_DISPC) ++ mgr->device->disable(mgr->device); ++ } ++ } ++ ++ spin_lock_irqsave(&dispc.irq_lock, flags); ++ dispc.irq_error_mask |= errors; ++ _omap_dispc_set_irqs(); ++ spin_unlock_irqrestore(&dispc.irq_lock, flags); ++} ++ ++int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout) ++{ ++ void dispc_irq_wait_handler(void *data, u32 mask) ++ { ++ complete((struct completion *)data); ++ } ++ ++ int r; ++ DECLARE_COMPLETION_ONSTACK(completion); ++ ++ r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion, ++ irqmask); ++ ++ if (r) ++ return r; ++ ++ timeout = wait_for_completion_timeout(&completion, timeout); ++ ++ omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask); ++ ++ if (timeout == 0) ++ return -ETIMEDOUT; ++ ++ if (timeout == -ERESTARTSYS) ++ return -ERESTARTSYS; ++ ++ return 0; ++} ++ ++int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask, ++ unsigned long timeout) ++{ ++ void dispc_irq_wait_handler(void *data, u32 mask) ++ { ++ complete((struct completion *)data); ++ } ++ ++ int r; ++ DECLARE_COMPLETION_ONSTACK(completion); ++ ++ r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion, ++ irqmask); ++ ++ if (r) ++ return r; ++ ++ timeout = wait_for_completion_interruptible_timeout(&completion, ++ timeout); ++ ++ omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask); ++ ++ if (timeout == 0) ++ return -ETIMEDOUT; ++ ++ if (timeout == -ERESTARTSYS) ++ return -ERESTARTSYS; ++ ++ return 0; ++} ++ ++#ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC ++void dispc_fake_vsync_irq(void) ++{ ++ u32 irqstatus = DISPC_IRQ_VSYNC; ++ int i; ++ ++ for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { ++ struct omap_dispc_isr_data *isr_data; ++ isr_data = &dispc.registered_isr[i]; ++ ++ if (!isr_data->isr) ++ continue; ++ ++ if (isr_data->mask & irqstatus) ++ isr_data->isr(isr_data->arg, irqstatus); ++ } ++} ++#endif ++ ++static void _omap_dispc_initialize_irq(void) ++{ ++ unsigned long flags; ++ ++ spin_lock_irqsave(&dispc.irq_lock, flags); ++ ++ memset(dispc.registered_isr, 0, sizeof(dispc.registered_isr)); ++ ++ dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR; ++ ++ /* there's SYNC_LOST_DIGIT waiting after enabling the DSS, ++ * so clear it */ ++ dispc_write_reg(DISPC_IRQSTATUS, dispc_read_reg(DISPC_IRQSTATUS)); ++ ++ _omap_dispc_set_irqs(); ++ ++ spin_unlock_irqrestore(&dispc.irq_lock, flags); ++} ++ ++void dispc_enable_sidle(void) ++{ ++ REG_FLD_MOD(DISPC_SYSCONFIG, 2, 4, 3); /* SIDLEMODE: smart idle */ ++} ++ ++void dispc_disable_sidle(void) ++{ ++ REG_FLD_MOD(DISPC_SYSCONFIG, 1, 4, 3); /* SIDLEMODE: no idle */ ++} ++ ++static void _omap_dispc_initial_config(void) ++{ ++ u32 l; ++ ++ l = dispc_read_reg(DISPC_SYSCONFIG); ++ l = FLD_MOD(l, 2, 13, 12); /* MIDLEMODE: smart standby */ ++ l = FLD_MOD(l, 2, 4, 3); /* SIDLEMODE: smart idle */ ++ l = FLD_MOD(l, 1, 2, 2); /* ENWAKEUP */ ++ l = FLD_MOD(l, 1, 0, 0); /* AUTOIDLE */ ++ dispc_write_reg(DISPC_SYSCONFIG, l); ++ ++ /* FUNCGATED */ ++ REG_FLD_MOD(DISPC_CONFIG, 1, 9, 9); ++ ++ /* L3 firewall setting: enable access to OCM RAM */ ++ if (cpu_is_omap24xx()) ++ __raw_writel(0x402000b0, OMAP2_IO_ADDRESS(0x680050a0)); ++ ++ _dispc_setup_color_conv_coef(); ++ ++ dispc_set_loadmode(OMAP_DSS_LOAD_FRAME_ONLY); ++ ++ dispc_read_plane_fifo_sizes(); ++} ++ ++int dispc_init(void) ++{ ++ u32 rev; ++ ++ spin_lock_init(&dispc.irq_lock); ++ ++ INIT_WORK(&dispc.error_work, dispc_error_worker); ++ ++ dispc.base = ioremap(DISPC_BASE, DISPC_SZ_REGS); ++ if (!dispc.base) { ++ DSSERR("can't ioremap DISPC\n"); ++ return -ENOMEM; ++ } ++ ++ if (cpu_is_omap34xx()) { ++ dispc.dpll4_m4_ck = clk_get(NULL, "dpll4_m4_ck"); ++ if (IS_ERR(dispc.dpll4_m4_ck)) { ++ DSSERR("Failed to get dpll4_m4_ck\n"); ++ return -ENODEV; ++ } ++ } ++ ++ enable_clocks(1); ++ ++ _omap_dispc_initial_config(); ++ ++ _omap_dispc_initialize_irq(); ++ ++ dispc_save_context(); ++ ++ rev = dispc_read_reg(DISPC_REVISION); ++ printk(KERN_INFO "OMAP DISPC rev %d.%d\n", ++ FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0)); ++ ++ enable_clocks(0); ++ ++ return 0; ++} ++ ++void dispc_exit(void) ++{ ++ if (cpu_is_omap34xx()) ++ clk_put(dispc.dpll4_m4_ck); ++ iounmap(dispc.base); ++} ++ ++int dispc_enable_plane(enum omap_plane plane, bool enable) ++{ ++ DSSDBG("dispc_enable_plane %d, %d\n", plane, enable); ++ ++ enable_clocks(1); ++ _dispc_enable_plane(plane, enable); ++ enable_clocks(0); ++ ++ return 0; ++} ++ ++int dispc_setup_plane(enum omap_plane plane, ++ u32 paddr, u16 screen_width, ++ u16 pos_x, u16 pos_y, ++ u16 width, u16 height, ++ u16 out_width, u16 out_height, ++ enum omap_color_mode color_mode, ++ bool ilace, ++ enum omap_dss_rotation_type rotation_type, ++ u8 rotation, bool mirror, u8 global_alpha) ++{ ++ int r = 0; ++ ++ DSSDBG("dispc_setup_plane %d, pa %x, sw %d, %d,%d, %dx%d -> " ++ "%dx%d, ilace %d, cmode %x, rot %d, mir %d\n", ++ plane, paddr, screen_width, pos_x, pos_y, ++ width, height, ++ out_width, out_height, ++ ilace, color_mode, ++ rotation, mirror); ++ ++ enable_clocks(1); ++ ++ r = _dispc_setup_plane(plane, ++ paddr, screen_width, ++ pos_x, pos_y, ++ width, height, ++ out_width, out_height, ++ color_mode, ilace, ++ rotation_type, ++ rotation, mirror, ++ global_alpha); ++ ++ enable_clocks(0); ++ ++ return r; ++} +-- +1.6.2.4 + |