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Diffstat (limited to 'recipes/linux/gumstix-kernel-2.6.21/pxafb-18bpp-mode.patch')
-rw-r--r--recipes/linux/gumstix-kernel-2.6.21/pxafb-18bpp-mode.patch433
1 files changed, 433 insertions, 0 deletions
diff --git a/recipes/linux/gumstix-kernel-2.6.21/pxafb-18bpp-mode.patch b/recipes/linux/gumstix-kernel-2.6.21/pxafb-18bpp-mode.patch
new file mode 100644
index 0000000000..e39564bdb5
--- /dev/null
+++ b/recipes/linux/gumstix-kernel-2.6.21/pxafb-18bpp-mode.patch
@@ -0,0 +1,433 @@
+Index: linux-2.6.21gum/drivers/video/pxafb.c
+===================================================================
+--- linux-2.6.21gum.orig/drivers/video/pxafb.c
++++ linux-2.6.21gum/drivers/video/pxafb.c
+@@ -191,6 +191,10 @@ static int pxafb_bpp_to_lccr3(struct fb_
+ case 4: ret = LCCR3_4BPP; break;
+ case 8: ret = LCCR3_8BPP; break;
+ case 16: ret = LCCR3_16BPP; break;
++ case 18: ret = (var->nonstd == 24 ? LCCR3_18BPP_PACKED : LCCR3_18BPP); break;
++ case 19: ret = (var->nonstd == 24 ? LCCR3_19BPP_PACKED : LCCR3_19BPP); break;
++ case 24: ret = LCCR3_24BPP; break;
++ case 25: ret = LCCR3_25BPP; break;
+ }
+ return ret;
+ }
+@@ -204,11 +208,12 @@ static int pxafb_bpp_to_lccr3(struct fb_
+ */
+ static unsigned int pxafb_display_dma_period(struct fb_var_screeninfo *var)
+ {
+- /*
+- * Period = pixclock * bits_per_byte * bytes_per_transfer
+- * / memory_bits_per_pixel;
+- */
+- return var->pixclock * 8 * 16 / var->bits_per_pixel;
++ /*
++ * Period = pixclock * bits_per_byte * bytes_per_transfer
++ * / memory_bits_per_pixel;
++ */
++ struct pxafb_mach_info *inf = fbi->dev->platform_data;
++ return var->pixclock * 8 * 16 / (var->nonstd ? var->nonstd : var->bits_per_pixel);
+ }
+
+ extern unsigned int get_clk_frequency_khz(int info);
+@@ -307,6 +312,26 @@ static int pxafb_check_var(struct fb_var
+ 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->transp.offset = var->transp.length = 0;
++ var->red.offset = 12; var->red.length=6;
++ var->green.offset = 6; var->green.length=6;
++ var->blue.offset = 0; var->blue.length=6;
++ } else if (var->bits_per_pixel == 19) {
++ var->transp.offset = 18; var->transp.length = 1;
++ var->red.offset = 12; var->red.length=6;
++ var->green.offset = 6; var->green.length=6;
++ var->blue.offset = 0; var->blue.length=6;
++ } else if (var->bits_per_pixel == 24) {
++ var->transp.offset = var->transp.length = 0;
++ var->red.offset = 16; var->red.length=8;
++ var->green.offset = 8; var->green.length=8;
++ var->blue.offset = 0; var->blue.length=8;
++ } else if (var->bits_per_pixel == 25) {
++ var->transp.offset = 18; var->transp.length = 1;
++ var->red.offset = 16; var->red.length=8;
++ var->green.offset = 8; var->green.length=8;
++ var->blue.offset = 0; var->blue.length=8;
+ } else {
+ var->red.offset = var->green.offset = var->blue.offset = var->transp.offset = 0;
+ var->red.length = 8;
+@@ -342,7 +367,7 @@ static int pxafb_set_par(struct fb_info
+
+ pr_debug("pxafb: set_par\n");
+
+- if (var->bits_per_pixel == 16)
++ if (var->bits_per_pixel >= 16)
+ fbi->fb.fix.visual = FB_VISUAL_TRUECOLOR;
+ else if (!fbi->cmap_static)
+ fbi->fb.fix.visual = FB_VISUAL_PSEUDOCOLOR;
+@@ -355,9 +380,10 @@ static int pxafb_set_par(struct fb_info
+ 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->fb.fix.line_length = var->xres_virtual *
++ (var->nonstd ? var->nonstd : 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;
+@@ -374,7 +400,7 @@ static int pxafb_set_par(struct fb_info
+ */
+ pxafb_set_truecolor(fbi->fb.fix.visual == FB_VISUAL_TRUECOLOR);
+
+- if (fbi->fb.var.bits_per_pixel == 16)
++ if (fbi->fb.var.bits_per_pixel >= 16)
+ fb_dealloc_cmap(&fbi->fb.cmap);
+ else
+ fb_alloc_cmap(&fbi->fb.cmap, 1<<fbi->fb.var.bits_per_pixel, 0);
+@@ -584,6 +610,14 @@ static int pxafb_activate_var(struct fb_
+ case 8:
+ case 16:
+ break;
++ case 18:
++ case 19:
++ case 24:
++ case 25:
++ if(var->nonstd) break;
++ printk(KERN_ERR "%s: must specify nonstd when bit depth==%d\n",
++ fbi->fb.fix.id, var->bits_per_pixel);
++ break;
+ default:
+ printk(KERN_ERR "%s: invalid bit depth %d\n",
+ fbi->fb.fix.id, var->bits_per_pixel);
+@@ -679,7 +713,7 @@ static int pxafb_activate_var(struct fb_
+ 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) {
+ /* 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 */
+@@ -785,8 +819,19 @@ static void pxafb_setup_gpio(struct pxaf
+ return;
+ }
+
+- for (gpio = 58; ldd_bits; gpio++, ldd_bits--)
++ for (gpio = 58; min(ldd_bits,16); gpio++, ldd_bits--)
+ pxa_gpio_mode(gpio | GPIO_ALT_FN_2_OUT);
++
++ switch(fbi->fb.var.bits_per_pixel)
++ {
++ case 25:
++ case 24:
++ case 19:
++ case 18:
++ pxa_gpio_mode(GPIO86_LDD_16_MD);
++ pxa_gpio_mode(GPIO87_LDD_17_MD);
++ default: break;
++ }
+ pxa_gpio_mode(GPIO74_LCD_FCLK_MD);
+ pxa_gpio_mode(GPIO75_LCD_LCLK_MD);
+ pxa_gpio_mode(GPIO76_LCD_PCLK_MD);
+@@ -1135,7 +1180,7 @@ static struct pxafb_info * __init pxafb_
+ fbi->fb.fix.ywrapstep = 0;
+ fbi->fb.fix.accel = FB_ACCEL_NONE;
+
+- fbi->fb.var.nonstd = 0;
++ fbi->fb.var.nonstd = mode->nonstd;
+ fbi->fb.var.activate = FB_ACTIVATE_NOW;
+ fbi->fb.var.height = -1;
+ fbi->fb.var.width = -1;
+@@ -1161,7 +1206,7 @@ static struct pxafb_info * __init pxafb_
+ 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;
++ smemlen = mode[i].xres * mode[i].yres * (mode[i].nonstd ? mode[i].nonstd : mode[i].bpp) / 8;
+ if (smemlen > fbi->fb.fix.smem_len)
+ fbi->fb.fix.smem_len = smemlen;
+ }
+@@ -1189,12 +1234,19 @@ static int __init pxafb_parse_options(st
+ if (!strncmp(this_opt, "mode:", 5)) {
+ const char *name = this_opt+5;
+ unsigned int namelen = strlen(name);
+- int res_specified = 0, bpp_specified = 0;
+- unsigned int xres = 0, yres = 0, bpp = 0;
++ int res_specified = 0, bpp_specified = 0, nonstd_specified = 0;
++ unsigned int xres = 0, yres = 0, bpp = 0, nonstd = 0;
+ int yres_specified = 0;
+ int i;
+ for (i = namelen-1; i >= 0; i--) {
+ switch (name[i]) {
++ case '/':
++ if (!nonstd_specified) {
++ nonstd = simple_strtoul(&name[i+1], NULL, 0);
++ nonstd_specified = 1;
++ } else
++ goto done;
++ break;
+ case '-':
+ namelen = i;
+ if (!bpp_specified && !yres_specified) {
+@@ -1227,12 +1279,29 @@ static int __init pxafb_parse_options(st
+ }
+ if (bpp_specified)
+ switch (bpp) {
++ case 18:
++ case 19:
++ case 24:
++ case 25:
++ if(nonstd_specified && (((bpp == 18 || bpp == 19) && nonstd == 24) || nonstd == 32))
++ {
++ inf->modes[0].nonstd = nonstd;
++ dev_info(dev, "overriding nonstd pixel packing: %d\n",nonstd);
++ } else {
++ dev_err(dev, "Depth %d requires nonstd to be specified\n",bpp);
++ break;
++ }
+ case 1:
+ case 2:
+ case 4:
+ case 8:
+ case 16:
+ inf->modes[0].bpp = bpp;
++ if(nonstd_specified) {
++ dev_err(dev, "Depth %d requires nonstd to *not* be specified\n",bpp);
++ } else {
++ inf->modes[0].nonstd = 0;
++ }
+ dev_info(dev, "overriding bit depth: %d\n", bpp);
+ break;
+ default:
+Index: linux-2.6.21gum/include/asm-arm/arch-pxa/pxa-regs.h
+===================================================================
+--- linux-2.6.21gum.orig/include/asm-arm/arch-pxa/pxa-regs.h
++++ linux-2.6.21gum/include/asm-arm/arch-pxa/pxa-regs.h
+@@ -1323,6 +1323,8 @@
+ #define GPIO83_NSTXD 83 /* NSSP transmit */
+ #define GPIO84_NSRXD 84 /* NSSP receive */
+ #define GPIO85_nPCE_1 85 /* Card Enable for Card Space (PXA27x) */
++#define GPIO86_LDD_16 86 /* LCD data pin 16 */
++#define GPIO87_LDD_17 87 /* LCD data pin 17 */
+ #define GPIO92_MMCDAT0 92 /* MMC DAT0 (PXA27x) */
+ #define GPIO102_nPCE_1 102 /* PCMCIA (PXA27x) */
+ #define GPIO105_nPCE_2 105 /* Card Enable for Card Space (PXA27x) */
+@@ -1468,6 +1470,8 @@
+ #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 GPIO92_MMCDAT0_MD (92 | GPIO_ALT_FN_1_OUT)
+ #define GPIO102_nPCE_1_MD (102 | GPIO_ALT_FN_1_OUT)
+ #define GPIO104_pSKTSEL_MD (104 | GPIO_ALT_FN_1_OUT)
+@@ -1878,6 +1882,12 @@
+ #define LCCR3_4BPP (2 << 24)
+ #define LCCR3_8BPP (3 << 24)
+ #define LCCR3_16BPP (4 << 24)
++#define LCCR3_18BPP (5 << 24)
++#define LCCR3_18BPP_PACKED (6 << 24)
++#define LCCR3_19BPP (7 << 24)
++#define LCCR3_19BPP_PACKED (1 << 29)
++#define LCCR3_24BPP ((1 << 29) | (1 << 24))
++#define LCCR3_25BPP ((1 << 29) | (2 << 24))
+
+ #define FDADR0 __REG(0x44000200) /* DMA Channel 0 Frame Descriptor Address Register */
+ #define FSADR0 __REG(0x44000204) /* DMA Channel 0 Frame Source Address Register */
+Index: linux-2.6.21gum/include/asm-arm/arch-pxa/pxafb.h
+===================================================================
+--- linux-2.6.21gum.orig/include/asm-arm/arch-pxa/pxafb.h
++++ linux-2.6.21gum/include/asm-arm/arch-pxa/pxafb.h
+@@ -25,6 +25,7 @@ struct pxafb_mode_info {
+ u_short xres;
+ u_short yres;
+
++ /* bpp is the path-to-screen bits per pixel, not the in-memory storage required */
+ u_char bpp;
+ u_char hsync_len;
+ u_char left_margin;
+@@ -36,7 +37,9 @@ struct pxafb_mode_info {
+ u_char sync;
+
+ u_int cmap_greyscale:1,
+- unused:31;
++ nonstd:8, /* nonstd represents the in-memory bits per pixel
++ ie 24 or 32 for 18/19bpp mode, or 32 for 24/25bpp mode */
++ unused:23;
+ };
+
+ struct pxafb_mach_info {
+Index: linux-2.6.21gum/arch/arm/mach-pxa/gumstix.c
+===================================================================
+--- linux-2.6.21gum.orig/arch/arm/mach-pxa/gumstix.c
++++ linux-2.6.21gum/arch/arm/mach-pxa/gumstix.c
+@@ -146,7 +146,8 @@ static struct pxafb_mode_info gumstix_fb
+ .pixclock = 110000,
+ .xres = 480,
+ .yres = 272,
+- .bpp = 16,
++ .bpp = 18,
++ .nonstd = 24,
+ .hsync_len = 41,
+ .left_margin = 2,
+ .right_margin = 2,
+@@ -174,7 +175,8 @@ static struct pxafb_mode_info gumstix_fb
+ .vsync_len = 10, // VLW from datasheet: 10 typ
+ .upper_margin = 2, // VBP - VLW from datasheet: 12 - 10 = 2
+ .lower_margin = 4, // VFP from datasheet: 4 typ
+- .bpp = 16,
++ .bpp = 18,
++ .nonstd = 24,
+ .sync = 0, // Hsync and Vsync both active low
+ };
+
+Index: linux-2.6.21gum/drivers/video/cfbfillrect.c
+===================================================================
+--- linux-2.6.21gum.orig/drivers/video/cfbfillrect.c
++++ linux-2.6.21gum/drivers/video/cfbfillrect.c
+@@ -62,7 +62,10 @@ pixel_to_pat( u32 bpp, u32 pixel)
+ return 0x0001001001001001ul*pixel;
+ case 16:
+ return 0x0001000100010001ul*pixel;
++ case 18:
++ case 19:
+ case 24:
++ case 25:
+ return 0x0000000001000001ul*pixel;
+ case 32:
+ return 0x0000000100000001ul*pixel;
+@@ -87,7 +90,10 @@ pixel_to_pat( u32 bpp, u32 pixel)
+ return 0x00001001ul*pixel;
+ case 16:
+ return 0x00010001ul*pixel;
++ case 18:
++ case 19:
+ case 24:
++ case 25:
+ return 0x00000001ul*pixel;
+ case 32:
+ return 0x00000001ul*pixel;
+@@ -346,7 +352,7 @@ void cfb_fillrect(struct fb_info *p, con
+ unsigned long pat, fg;
+ unsigned long width = rect->width, height = rect->height;
+ int bits = BITS_PER_LONG, bytes = bits >> 3;
+- u32 bpp = p->var.bits_per_pixel;
++ u32 bpp = (p->var.nonstd ? p->var.nonstd : p->var.bits_per_pixel);
+ unsigned long __iomem *dst;
+ int dst_idx, left;
+
+Index: linux-2.6.21gum/drivers/video/cfbimgblt.c
+===================================================================
+--- linux-2.6.21gum.orig/drivers/video/cfbimgblt.c
++++ linux-2.6.21gum/drivers/video/cfbimgblt.c
+@@ -83,7 +83,7 @@ static inline void color_imageblit(const
+ /* Draw the penguin */
+ u32 __iomem *dst, *dst2;
+ u32 color = 0, val, shift;
+- int i, n, bpp = p->var.bits_per_pixel;
++ int i, n, bpp = (p->var.nonstd ? p->var.nonstd : p->var.bits_per_pixel);
+ u32 null_bits = 32 - bpp;
+ u32 *palette = (u32 *) p->pseudo_palette;
+ const u8 *src = image->data;
+@@ -140,7 +140,7 @@ static inline void slow_imageblit(const
+ u32 start_index,
+ u32 pitch_index)
+ {
+- u32 shift, color = 0, bpp = p->var.bits_per_pixel;
++ u32 shift, color = 0, bpp = (p->var.nonstd ? p->var.nonstd : p->var.bits_per_pixel);
+ u32 __iomem *dst, *dst2;
+ u32 val, pitch = p->fix.line_length;
+ u32 null_bits = 32 - bpp;
+@@ -213,7 +213,7 @@ static inline void fast_imageblit(const
+ u8 __iomem *dst1, u32 fgcolor,
+ u32 bgcolor)
+ {
+- u32 fgx = fgcolor, bgx = bgcolor, bpp = p->var.bits_per_pixel;
++ u32 fgx = fgcolor, bgx = bgcolor, bpp = (p->var.nonstd ? p->var.nonstd : p->var.bits_per_pixel);
+ u32 ppw = 32/bpp, spitch = (image->width + 7)/8;
+ u32 bit_mask, end_mask, eorx, shift;
+ const char *s = image->data, *src;
+@@ -262,7 +262,7 @@ static inline void fast_imageblit(const
+ void cfb_imageblit(struct fb_info *p, const struct fb_image *image)
+ {
+ u32 fgcolor, bgcolor, start_index, bitstart, pitch_index = 0;
+- u32 bpl = sizeof(u32), bpp = p->var.bits_per_pixel;
++ u32 bpl = sizeof(u32), bpp = (p->var.nonstd ? p->var.nonstd : p->var.bits_per_pixel);
+ u32 width = image->width;
+ u32 dx = image->dx, dy = image->dy;
+ u8 __iomem *dst1;
+Index: linux-2.6.21gum/drivers/video/cfbcopyarea.c
+===================================================================
+--- linux-2.6.21gum.orig/drivers/video/cfbcopyarea.c
++++ linux-2.6.21gum/drivers/video/cfbcopyarea.c
+@@ -365,8 +365,8 @@ void cfb_copyarea(struct fb_info *p, con
+ dst = src = (unsigned long __iomem *)((unsigned long)p->screen_base & ~(bytes-1));
+ dst_idx = src_idx = 8*((unsigned long)p->screen_base & (bytes-1));
+ // add offset of source and target area
+- dst_idx += dy*bits_per_line + dx*p->var.bits_per_pixel;
+- src_idx += sy*bits_per_line + sx*p->var.bits_per_pixel;
++ dst_idx += dy*bits_per_line + dx*(p->var.nonstd ? p->var.nonstd : p->var.bits_per_pixel);
++ src_idx += sy*bits_per_line + sx*(p->var.nonstd ? p->var.nonstd : p->var.bits_per_pixel);
+
+ if (p->fbops->fb_sync)
+ p->fbops->fb_sync(p);
+@@ -380,7 +380,7 @@ void cfb_copyarea(struct fb_info *p, con
+ src += src_idx >> (ffs(bits) - 1);
+ src_idx &= (bytes - 1);
+ bitcpy_rev(dst, dst_idx, src, src_idx, bits,
+- width*p->var.bits_per_pixel);
++ width*(p->var.nonstd ? p->var.nonstd : p->var.bits_per_pixel));
+ }
+ } else {
+ while (height--) {
+@@ -389,7 +389,7 @@ void cfb_copyarea(struct fb_info *p, con
+ src += src_idx >> (ffs(bits) - 1);
+ src_idx &= (bytes - 1);
+ bitcpy(dst, dst_idx, src, src_idx, bits,
+- width*p->var.bits_per_pixel);
++ width*(p->var.nonstd ? p->var.nonstd : p->var.bits_per_pixel));
+ dst_idx += bits_per_line;
+ src_idx += bits_per_line;
+ }
+Index: linux-2.6.21gum/drivers/video/console/fbcon.c
+===================================================================
+--- linux-2.6.21gum.orig/drivers/video/console/fbcon.c
++++ linux-2.6.21gum/drivers/video/console/fbcon.c
+@@ -983,9 +983,10 @@ static const char *fbcon_startup(void)
+
+ DPRINTK("mode: %s\n", info->fix.id);
+ DPRINTK("visual: %d\n", info->fix.visual);
+- DPRINTK("res: %dx%d-%d\n", info->var.xres,
++ DPRINTK("res: %dx%d-%d(%d)\n", info->var.xres,
+ info->var.yres,
+- info->var.bits_per_pixel);
++ info->var.bits_per_pixel,
++ info->var.nonstd ? info->var.nonstd : info->var.bits_per_pixel);
+
+ #ifdef CONFIG_ATARI
+ if (MACH_IS_ATARI) {
+Index: linux-2.6.21gum/Documentation/fb/pxafb.txt
+===================================================================
+--- linux-2.6.21gum.orig/Documentation/fb/pxafb.txt
++++ linux-2.6.21gum/Documentation/fb/pxafb.txt
+@@ -9,11 +9,13 @@ For example:
+ or on the kernel command line
+ video=pxafb:mode:640x480-8,passive
+
+-mode:XRESxYRES[-BPP]
++mode:XRESxYRES[-BPP[/PACKING]]
+ XRES == LCCR1_PPL + 1
+ YRES == LLCR2_LPP + 1
+ The resolution of the display in pixels
+ BPP == The bit depth. Valid values are 1, 2, 4, 8 and 16.
++ PACKING == The in-memory bits per pixel. Valid values are 24, 32 when
++ BPP == 18,19,24,25
+
+ pixclock:PIXCLOCK
+ Pixel clock in picoseconds
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 07:12:28 +0000