diff options
author | Dave Kleikamp <shaggy@austin.ibm.com> | 2006-03-14 17:05:45 -0600 |
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committer | Dave Kleikamp <shaggy@austin.ibm.com> | 2006-03-14 17:05:45 -0600 |
commit | c5111f504d2a9b0d258d7c4752b4093523315989 (patch) | |
tree | 6a52864aff79691689aea21cb0cb928327d5de5b /drivers/video/amba-clcd.c | |
parent | 69eb66d7da7dba2696281981347698e1693c2340 (diff) | |
parent | a488edc914aa1d766a4e2c982b5ae03d5657ec1b (diff) |
Merge with /home/shaggy/git/linus-clean/
Diffstat (limited to 'drivers/video/amba-clcd.c')
-rw-r--r-- | drivers/video/amba-clcd.c | 54 |
1 files changed, 29 insertions, 25 deletions
diff --git a/drivers/video/amba-clcd.c b/drivers/video/amba-clcd.c index b2187175d03..6761b68c35e 100644 --- a/drivers/video/amba-clcd.c +++ b/drivers/video/amba-clcd.c @@ -116,9 +116,10 @@ clcdfb_set_bitfields(struct clcd_fb *fb, struct fb_var_screeninfo *var) int ret = 0; memset(&var->transp, 0, sizeof(var->transp)); - memset(&var->red, 0, sizeof(var->red)); - memset(&var->green, 0, sizeof(var->green)); - memset(&var->blue, 0, sizeof(var->blue)); + + var->red.msb_right = 0; + var->green.msb_right = 0; + var->blue.msb_right = 0; switch (var->bits_per_pixel) { case 1: @@ -133,34 +134,20 @@ clcdfb_set_bitfields(struct clcd_fb *fb, struct fb_var_screeninfo *var) var->blue.offset = 0; break; case 16: - var->red.length = 5; - var->green.length = 6; - var->blue.length = 5; - if (fb->panel->cntl & CNTL_BGR) { - var->red.offset = 11; - var->green.offset = 5; - var->blue.offset = 0; - } else { - var->red.offset = 0; - var->green.offset = 5; - var->blue.offset = 11; - } + var->red.length = 5; + var->blue.length = 5; + /* + * Green length can be 5 or 6 depending whether + * we're operating in RGB555 or RGB565 mode. + */ + if (var->green.length != 5 && var->green.length != 6) + var->green.length = 6; break; case 32: if (fb->panel->cntl & CNTL_LCDTFT) { var->red.length = 8; var->green.length = 8; var->blue.length = 8; - - if (fb->panel->cntl & CNTL_BGR) { - var->red.offset = 16; - var->green.offset = 8; - var->blue.offset = 0; - } else { - var->red.offset = 0; - var->green.offset = 8; - var->blue.offset = 16; - } break; } default: @@ -168,6 +155,23 @@ clcdfb_set_bitfields(struct clcd_fb *fb, struct fb_var_screeninfo *var) break; } + /* + * >= 16bpp displays have separate colour component bitfields + * encoded in the pixel data. Calculate their position from + * the bitfield length defined above. + */ + if (ret == 0 && var->bits_per_pixel >= 16) { + if (fb->panel->cntl & CNTL_BGR) { + var->blue.offset = 0; + var->green.offset = var->blue.offset + var->blue.length; + var->red.offset = var->green.offset + var->green.length; + } else { + var->red.offset = 0; + var->green.offset = var->red.offset + var->red.length; + var->blue.offset = var->green.offset + var->green.length; + } + } + return ret; } |