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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>
This commit is contained in:
Krzysztof Helt 2008-02-06 01:39:37 -08:00 committed by Linus Torvalds
parent a782eed655
commit bc9c6a175f
1 changed files with 8 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/video/pm2fb.c
View File

@ -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 |