From bc9c6a175fa8123587668c38959a105e3ccb6bbd Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Wed, 6 Feb 2008 01:39:37 -0800 Subject: [PATCH] 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 Cc: Geert Uytterhoeven Cc: "David S. Miller" Cc: "Antonino A. Daplas" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/pm2fb.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/video/pm2fb.c b/drivers/video/pm2fb.c index 5591dfb22b..30181b5938 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 | -- 2.39.5