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-rw-r--r--packages/linux/linux-ezx-2.6.21/patches/lcd_18BPP_support.diff270
1 files changed, 270 insertions, 0 deletions
diff --git a/packages/linux/linux-ezx-2.6.21/patches/lcd_18BPP_support.diff b/packages/linux/linux-ezx-2.6.21/patches/lcd_18BPP_support.diff
new file mode 100644
index 0000000000..a0d89bfee5
--- /dev/null
+++ b/packages/linux/linux-ezx-2.6.21/patches/lcd_18BPP_support.diff
@@ -0,0 +1,270 @@
+Index: linux-2.6.21/arch/arm/mach-pxa/ezx-a1200.c
+===================================================================
+--- linux-2.6.21.orig/arch/arm/mach-pxa/ezx-a1200.c 2007-08-18 18:35:12.000000000 +0800
++++ linux-2.6.21/arch/arm/mach-pxa/ezx-a1200.c 2007-08-18 18:36:38.000000000 +0800
+@@ -122,7 +122,7 @@
+ .pixclock = 192308,
+ .xres = 240,
+ .yres = 320,
+- .bpp = 8,
++ .bpp = 18,
+ .hsync_len = 10,
+ .left_margin = 20,
+ .right_margin = 10,
+@@ -135,8 +135,8 @@
+ static struct pxafb_mach_info a1200_fb_info = {
+ .modes = &mode_a1200,
+ .num_modes = 1,
+- .lccr0 = 0x022008B8,
+- .lccr3 = 0xC130FF13,
++ .lccr0 = 0x002008b8,
++ .lccr3 = 0xC630FF13,
+ .pxafb_backlight_power = ezx_backlight_power,
+ .pxafb_lcd_power = &ezx_lcd_power,
+ };
+Index: linux-2.6.21/drivers/video/cfbfillrect.c
+===================================================================
+--- linux-2.6.21.orig/drivers/video/cfbfillrect.c 2007-08-18 18:38:36.000000000 +0800
++++ linux-2.6.21/drivers/video/cfbfillrect.c 2007-08-18 18:39:03.000000000 +0800
+@@ -87,7 +87,10 @@
+ return 0x00001001ul*pixel;
+ case 16:
+ return 0x00010001ul*pixel;
++ case 18:
++ case 19:
+ case 24:
++ case 25:
+ return 0x00000001ul*pixel;
+ case 32:
+ return 0x00000001ul*pixel;
+Index: linux-2.6.21/drivers/video/pxafb.c
+===================================================================
+--- linux-2.6.21.orig/drivers/video/pxafb.c 2007-08-18 17:58:11.000000000 +0800
++++ linux-2.6.21/drivers/video/pxafb.c 2007-08-18 18:46:50.000000000 +0800
+@@ -9,6 +9,8 @@
+ * which in turn is
+ * Based on acornfb.c Copyright (C) Russell King.
+ *
++ * Added 18,19,24,25 BPP support by Alex Zhang <celeber2@gmail.com>
++ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+@@ -190,6 +192,10 @@
+ case 4: ret = LCCR3_4BPP; break;
+ case 8: ret = LCCR3_8BPP; break;
+ case 16: ret = LCCR3_16BPP; break;
++ case 18: ret = LCCR3_18BPP; break;
++ case 19: ret = LCCR3_19BPP; break;
++ case 24: ret = LCCR3_24BPP; break;
++ case 25: ret = LCCR3_25BPP; break;
+ }
+ return ret;
+ }
+@@ -274,6 +280,8 @@
+ if (var->yres < MIN_YRES)
+ var->yres = MIN_YRES;
+
++ if (var->bits_per_pixel == 32) var->bits_per_pixel = 18; // ALEX cheats Xserver
++
+ if (inf->fixed_modes) {
+ struct pxafb_mode_info *mode;
+
+@@ -306,6 +314,26 @@
+ var->green.offset = 5; var->green.length = 6;
+ var->blue.offset = 0; var->blue.length = 5;
+ var->transp.offset = var->transp.length = 0;
++ } else if (var->bits_per_pixel == 18) {
++ var->red.offset = 12; var->red.length = 6;
++ var->green.offset = 6; var->green.length = 6;
++ var->blue.offset = 0; var->blue.length = 6;
++ var->transp.offset = var->transp.length = 0;
++ } else if (var->bits_per_pixel == 19) {
++ var->red.offset = 12; var->red.length = 6;
++ var->green.offset = 6; var->green.length = 6;
++ var->blue.offset = 0; var->blue.length = 6;
++ var->transp.offset= 18; var->transp.length = 1;
++ } else if (var->bits_per_pixel == 24) {
++ var->red.offset = 16; var->red.length = 8;
++ var->green.offset = 8; var->green.length = 8;
++ var->blue.offset = 0; var->blue.length = 8;
++ var->transp.offset = var->transp.length = 0;
++ } else if (var->bits_per_pixel == 25) {
++ var->red.offset = 16; var->red.length = 8;
++ var->green.offset = 8; var->green.length = 8;
++ var->blue.offset = 0; var->blue.length = 8;
++ var->transp.offset= 24; var->transp.length = 1;
+ } else {
+ var->red.offset = var->green.offset = var->blue.offset = var->transp.offset = 0;
+ var->red.length = 8;
+@@ -341,7 +369,12 @@
+
+ pr_debug("pxafb: set_par\n");
+
+- if (var->bits_per_pixel == 16)
++ if (var->bits_per_pixel == 16
++ || var->bits_per_pixel == 18
++ || var->bits_per_pixel == 19
++ || var->bits_per_pixel == 24
++ || var->bits_per_pixel == 25
++ )
+ fbi->fb.fix.visual = FB_VISUAL_TRUECOLOR;
+ else if (!fbi->cmap_static)
+ fbi->fb.fix.visual = FB_VISUAL_PSEUDOCOLOR;
+@@ -354,12 +387,25 @@
+ fbi->fb.fix.visual = FB_VISUAL_STATIC_PSEUDOCOLOR;
+ }
+
+- fbi->fb.fix.line_length = var->xres_virtual *
+- var->bits_per_pixel / 8;
+- if (var->bits_per_pixel == 16)
+- fbi->palette_size = 0;
+- else
+- fbi->palette_size = var->bits_per_pixel == 1 ? 4 : 1 << var->bits_per_pixel;
++ switch (var->bits_per_pixel) {
++ case 16:
++ fbi->fb.fix.line_length = var->xres_virtual * 2;
++ fbi->palette_size = 0;
++ break;
++ case 18:
++ case 19:
++ fbi->fb.fix.line_length = var->xres_virtual * 3;
++ fbi->palette_size = 0;
++ break;
++ case 24:
++ case 25:
++ fbi->fb.fix.line_length = var->xres_virtual * 4;
++ fbi->palette_size = 0;
++ break;
++ default:
++ fbi->fb.fix.line_length = var->xres_virtual * var->bits_per_pixel / 8;
++ fbi->palette_size = var->bits_per_pixel == 1 ? 4 : 1 << var->bits_per_pixel;
++ }
+
+ palette_mem_size = fbi->palette_size * sizeof(u16);
+
+@@ -373,8 +419,13 @@
+ */
+ pxafb_set_truecolor(fbi->fb.fix.visual == FB_VISUAL_TRUECOLOR);
+
+- if (fbi->fb.var.bits_per_pixel == 16)
+- fb_dealloc_cmap(&fbi->fb.cmap);
++ if (fbi->fb.var.bits_per_pixel == 16
++ || fbi->fb.var.bits_per_pixel == 18
++ || fbi->fb.var.bits_per_pixel == 19
++ || fbi->fb.var.bits_per_pixel == 24
++ || fbi->fb.var.bits_per_pixel == 25
++ )
++ fb_dealloc_cmap(&fbi->fb.cmap);
+ else
+ fb_alloc_cmap(&fbi->fb.cmap, 1<<fbi->fb.var.bits_per_pixel, 0);
+
+@@ -582,6 +633,9 @@
+ case 4:
+ case 8:
+ case 16:
++ case 18:
++ case 24:
++ case 25:
+ break;
+ default:
+ printk(KERN_ERR "%s: invalid bit depth %d\n",
+@@ -678,7 +732,12 @@
+ fbi->dmadesc_palette_cpu->fidr = 0;
+ fbi->dmadesc_palette_cpu->ldcmd = (fbi->palette_size * 2) | LDCMD_PAL;
+
+- if (var->bits_per_pixel == 16) {
++ if (var->bits_per_pixel == 16
++ || var->bits_per_pixel == 18
++ || var->bits_per_pixel == 19
++ || var->bits_per_pixel == 24
++ || var->bits_per_pixel == 25
++ ) {
+ /* palette shouldn't be loaded in true-color mode */
+ fbi->dmadesc_fbhigh_cpu->fdadr = fbi->dmadesc_fbhigh_dma;
+ fbi->fdadr0 = fbi->dmadesc_fbhigh_dma; /* no pal just fbhigh */
+@@ -786,6 +845,11 @@
+
+ for (gpio = 58; ldd_bits; gpio++, ldd_bits--)
+ pxa_gpio_mode(gpio | GPIO_ALT_FN_2_OUT);
++ if (fbi->fb.var.bits_per_pixel == 18) {
++ pxa_gpio_mode(GPIO86_LDD_16_MD);
++ pxa_gpio_mode(GPIO87_LDD_17_MD);
++ }
++
+ pxa_gpio_mode(GPIO74_LCD_FCLK_MD);
+ pxa_gpio_mode(GPIO75_LCD_LCLK_MD);
+ pxa_gpio_mode(GPIO76_LCD_PCLK_MD);
+@@ -1154,9 +1218,17 @@
+ fbi->task_state = (u_char)-1;
+
+ for (i = 0; i < inf->num_modes; i++) {
+- smemlen = mode[i].xres * mode[i].yres * mode[i].bpp / 8;
++ if (mode[i].bpp <= 16) /* 8, 16 bpp */
++ smemlen = mode[i].xres * mode[i].yres * mode[i].bpp / 8;
++ else if (mode[i].bpp > 19) /* 24, 25 bpp */
++ smemlen = mode[i].xres * mode[i].yres * 4;
++ else /* 18, 19 bpp */
++ /* packed format */
++ smemlen = mode[i].xres * mode[i].yres * 3;
++
+ if (smemlen > fbi->fb.fix.smem_len)
+ fbi->fb.fix.smem_len = smemlen;
++ dev_dbg("ALEX::bpp=%d, smemlen=%d, fbi->fb.fix.smem_len=%d\n", mode[i].bpp, smemlen, fbi->fb.fix.smem_len);
+ }
+
+ init_waitqueue_head(&fbi->ctrlr_wait);
+@@ -1225,6 +1297,10 @@
+ case 4:
+ case 8:
+ case 16:
++ case 18:
++ case 19:
++ case 24:
++ case 25:
+ inf->modes[0].bpp = bpp;
+ dev_info(dev, "overriding bit depth: %d\n", bpp);
+ break;
+@@ -1423,6 +1499,9 @@
+ */
+ set_ctrlr_state(fbi, C_ENABLE);
+
++ LCCR4 |= (1 << 31);
++ LCCR4 |= (5 << 17);
++
+ return 0;
+
+ failed:
+Index: linux-2.6.21/include/asm-arm/arch-pxa/pxa-regs.h
+===================================================================
+--- linux-2.6.21.orig/include/asm-arm/arch-pxa/pxa-regs.h 2007-08-18 18:26:01.000000000 +0800
++++ linux-2.6.21/include/asm-arm/arch-pxa/pxa-regs.h 2007-08-18 18:32:29.000000000 +0800
+@@ -1485,6 +1485,8 @@
+ #define GPIO84_NSSP_TX (84 | GPIO_ALT_FN_1_OUT)
+ #define GPIO84_NSSP_RX (84 | GPIO_ALT_FN_2_IN)
+ #define GPIO85_nPCE_1_MD (85 | GPIO_ALT_FN_1_OUT)
++#define GPIO86_LDD_16_MD (86 | GPIO_ALT_FN_2_OUT)
++#define GPIO87_LDD_17_MD (87 | GPIO_ALT_FN_2_OUT)
+ #define GPIO88_SRXD2_MD (88 | GPIO_ALT_FN_2_IN)
+ #define GPIO89_SRXD3_MD (89 | GPIO_ALT_FN_1_IN)
+ #define GPIO90_USB_P3_5 (90 | GPIO_ALT_FN_2_IN)
+@@ -1869,6 +1871,7 @@
+ #define LCCR1 __REG(0x44000004) /* LCD Controller Control Register 1 */
+ #define LCCR2 __REG(0x44000008) /* LCD Controller Control Register 2 */
+ #define LCCR3 __REG(0x4400000C) /* LCD Controller Control Register 3 */
++#define LCCR4 __REG(0x44000010) /* LCD Controller Control Register 4 */
+ #define DFBR0 __REG(0x44000020) /* DMA Channel 0 Frame Branch Register */
+ #define DFBR1 __REG(0x44000024) /* DMA Channel 1 Frame Branch Register */
+ #define LCSR __REG(0x44000038) /* LCD Controller Status Register */
+@@ -1881,6 +1884,11 @@
+ #define LCCR3_4BPP (2 << 24)
+ #define LCCR3_8BPP (3 << 24)
+ #define LCCR3_16BPP (4 << 24)
++#define LCCR3_18BPP_UNPACKED (5 << 24)
++#define LCCR3_18BPP (6 << 24)
++#define LCCR3_19BPP (8 << 24)
++#define LCCR3_24BPP (9 << 24)
++#define LCCR3_25BPP (10<< 24)
+
+ #define FDADR0 __REG(0x44000200) /* DMA Channel 0 Frame Descriptor Address Register */
+ #define FSADR0 __REG(0x44000204) /* DMA Channel 0 Frame Source Address Register */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 18:39:47 +0000