diff options
| author | Krzysztof Helt <krzysztof.h1@wp.pl> | 2008-02-06 12:39:37 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-06 21:41:17 +0300 |
| commit | bc9c6a175fa8123587668c38959a105e3ccb6bbd (patch) | |
| tree | 2dd0225546ed1c66a4a7a648de370b9c7b912be6 /drivers/video | |
| parent | a782eed655de49faa4895ae6143c3891985e4d98 (diff) | |
| download | linux-bc9c6a175fa8123587668c38959a105e3ccb6bbd.tar.xz | |
pm2fb: big endian fix
Fix garbled letters on big endian machines with acceleration enabled.
This makes pm2fb works fine with full acceleration on sparc machine (card
known as Sun PGX-32 or TechSource Raptor GFX-8P).
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/pm2fb.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/video/pm2fb.c b/drivers/video/pm2fb.c index 5591dfb22b18..30181b593829 100644 --- a/drivers/video/pm2fb.c +++ b/drivers/video/pm2fb.c @@ -1159,6 +1159,11 @@ static void pm2fb_imageblit(struct fb_info *info, const struct fb_image *image) u32 fgx, bgx; const u32 *src = (const u32 *)image->data; u32 xres = (info->var.xres + 31) & ~31; + int raster_mode = 1; /* invert bits */ + +#ifdef __LITTLE_ENDIAN + raster_mode |= 3 << 7; /* reverse byte order */ +#endif if (info->state != FBINFO_STATE_RUNNING) return; @@ -1208,9 +1213,8 @@ static void pm2fb_imageblit(struct fb_info *info, const struct fb_image *image) pm2_WR(par, PM2R_RENDER, PM2F_RENDER_RECTANGLE | PM2F_INCREASE_X | PM2F_INCREASE_Y); - /* BitMapPackEachScanline & invert bits and byte order*/ - /* force background */ - pm2_WR(par, PM2R_RASTERIZER_MODE, (1 << 9) | 1 | (3 << 7)); + /* BitMapPackEachScanline */ + pm2_WR(par, PM2R_RASTERIZER_MODE, raster_mode | (1 << 9)); pm2_WR(par, PM2R_CONSTANT_COLOR, fgx); pm2_WR(par, PM2R_RENDER, PM2F_RENDER_RECTANGLE | @@ -1224,8 +1228,7 @@ static void pm2fb_imageblit(struct fb_info *info, const struct fb_image *image) PM2F_RENDER_RECTANGLE | PM2F_RENDER_FASTFILL | PM2F_INCREASE_X | PM2F_INCREASE_Y); - /* invert bits and byte order*/ - pm2_WR(par, PM2R_RASTERIZER_MODE, 1 | (3 << 7)); + pm2_WR(par, PM2R_RASTERIZER_MODE, raster_mode); pm2_WR(par, PM2R_FB_BLOCK_COLOR, fgx); pm2_WR(par, PM2R_RENDER, PM2F_RENDER_RECTANGLE | |