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[ARM] 5164/1: pxafb: Support for RGB666, RGBT666, RGB888 and RGBT888

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Add the .depth field to pxafb_mode_info and use it to set pixel data format
as 18(RGB666), 19(RGBT666), 24(RGB888) or 25(RGBT888)

Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Stefan Schmidt 2008-07-09 08:06:32 +01:00 committed by Russell King
parent 00249adc0e
commit c1450f156f
2 changed files with 63 additions and 4 deletions
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64
drivers/video/pxafb.c
View file

@ -227,6 +227,22 @@ static int pxafb_bpp_to_lccr3(struct fb_var_screeninfo *var)
case 4: ret = LCCR3_4BPP; break;
case 8: ret = LCCR3_8BPP; break;
case 16: ret = LCCR3_16BPP; break;
case 24:
switch (var->red.length + var->green.length +
var->blue.length + var->transp.length) {
case 18: ret = LCCR3_18BPP_P | LCCR3_PDFOR_3; break;
case 19: ret = LCCR3_19BPP_P; break;
}
break;
case 32:
switch (var->red.length + var->green.length +
var->blue.length + var->transp.length) {
case 18: ret = LCCR3_18BPP | LCCR3_PDFOR_3; break;
case 19: ret = LCCR3_19BPP; break;
case 24: ret = LCCR3_24BPP | LCCR3_PDFOR_3; break;
case 25: ret = LCCR3_25BPP; break;
}
break;
}
return ret;
}
@ -345,6 +361,41 @@ static int pxafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
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 > 16) {
struct pxafb_mode_info *mode;
mode = pxafb_getmode(inf, var);
if (!mode)
return -EINVAL;
switch (mode->depth) {
case 18: /* RGB666 */
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;
break;
case 19: /* RGBT666 */
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;
break;
case 24: /* RGB888 */
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;
break;
case 25: /* RGBT888 */
var->transp.offset = 24; 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;
break;
default:
return -EINVAL;
}
} else {
var->red.offset = var->green.offset = 0;
var->blue.offset = var->transp.offset = 0;
@ -376,7 +427,7 @@ static int pxafb_set_par(struct fb_info *info)
struct pxafb_info *fbi = (struct pxafb_info *)info;
struct fb_var_screeninfo *var = &info->var;
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;
@ -391,7 +442,7 @@ static int pxafb_set_par(struct fb_info *info)
fbi->fb.fix.line_length = var->xres_virtual *
var->bits_per_pixel / 8;
if (var->bits_per_pixel == 16)
if (var->bits_per_pixel >= 16)
fbi->palette_size = 0;
else
fbi->palette_size = var->bits_per_pixel == 1 ?
@ -404,7 +455,7 @@ static int pxafb_set_par(struct fb_info *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);
@ -831,6 +882,8 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var,
case 4:
case 8:
case 16:
case 24:
case 32:
break;
default:
printk(KERN_ERR "%s: invalid bit depth %d\n",
@ -968,6 +1021,11 @@ static void pxafb_setup_gpio(struct pxafb_info *fbi)
for (gpio = 58; ldd_bits; gpio++, ldd_bits--)
pxa_gpio_mode(gpio | GPIO_ALT_FN_2_OUT);
/* 18 bit interface */
if (fbi->fb.var.bits_per_pixel > 16) {
pxa_gpio_mode(86 | GPIO_ALT_FN_2_OUT);
pxa_gpio_mode(87 | GPIO_ALT_FN_2_OUT);
}
pxa_gpio_mode(GPIO74_LCD_FCLK_MD);
pxa_gpio_mode(GPIO75_LCD_LCLK_MD);
pxa_gpio_mode(GPIO76_LCD_PCLK_MD);

3
include/asm-arm/arch-pxa/pxafb.h
View file

@ -71,7 +71,8 @@ struct pxafb_mode_info {
u_char bpp;
u_int cmap_greyscale:1,
unused:31;
depth:8,
unused:23;
/* Parallel Mode Timing */
u_char hsync_len;