diff options
| author | Antonino A. Daplas <adaplas@gmail.com> | 2006-01-09 20:53:39 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-10 08:01:50 -0800 |
| commit | ade9185a39aa2bc51f95b4899836e59df671d844 (patch) | |
| tree | 6a0975b7ac969ad6d0c09524b226d3c01e97ea6b /drivers/video/nvidia/nvidia.c | |
| parent | af5d0f7e2b5e9ef369de2aefe51e14ca1e6928f5 (diff) | |
[PATCH] nvidiafb: Add boot option 'bpp'
Add boot/module option 'bpp' so user can specify at what color depth to boot
into.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/video/nvidia/nvidia.c')
| -rw-r--r-- | drivers/video/nvidia/nvidia.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/drivers/video/nvidia/nvidia.c b/drivers/video/nvidia/nvidia.c index 099d64af37be..ae6f2ff70abf 100644 --- a/drivers/video/nvidia/nvidia.c +++ b/drivers/video/nvidia/nvidia.c @@ -428,6 +428,7 @@ static int noaccel __devinitdata = 0; static int noscale __devinitdata = 0; static int paneltweak __devinitdata = 0; static int vram __devinitdata = 0; +static int bpp __devinitdata = 8; #ifdef CONFIG_MTRR static int nomtrr __devinitdata = 0; #endif @@ -1392,24 +1393,36 @@ static int __devinit nvidia_set_fbinfo(struct fb_info *info) info->monspecs.modedb_len, &info->modelist); fb_var_to_videomode(&modedb, &nvidiafb_default_var); + switch (bpp) { + case 0 ... 8: + bpp = 8; + break; + case 9 ... 16: + bpp = 16; + break; + default: + bpp = 32; + break; + } + if (specs->modedb != NULL) { struct fb_videomode *modedb; modedb = fb_find_best_display(specs, &info->modelist); fb_videomode_to_var(&nvidiafb_default_var, modedb); - nvidiafb_default_var.bits_per_pixel = 8; + nvidiafb_default_var.bits_per_pixel = bpp; } else if (par->fpWidth && par->fpHeight) { char buf[16]; memset(buf, 0, 16); snprintf(buf, 15, "%dx%dMR", par->fpWidth, par->fpHeight); fb_find_mode(&nvidiafb_default_var, info, buf, specs->modedb, - specs->modedb_len, &modedb, 8); + specs->modedb_len, &modedb, bpp); } if (mode_option) fb_find_mode(&nvidiafb_default_var, info, mode_option, - specs->modedb, specs->modedb_len, &modedb, 8); + specs->modedb, specs->modedb_len, &modedb, bpp); info->var = nvidiafb_default_var; info->fix.visual = (info->var.bits_per_pixel == 8) ? @@ -1769,6 +1782,8 @@ static int __devinit nvidiafb_setup(char *options) #endif } else if (!strncmp(this_opt, "fpdither:", 9)) { fpdither = simple_strtol(this_opt+9, NULL, 0); + } else if (!strncmp(this_opt, "bpp:", 4)) { + bpp = simple_strtoul(this_opt+4, NULL, 0); } else mode_option = this_opt; } @@ -1846,7 +1861,9 @@ MODULE_PARM_DESC(vram, "(default=0 - remap entire memory)"); module_param(mode_option, charp, 0); MODULE_PARM_DESC(mode_option, "Specify initial video mode"); - +module_param(bpp, int, 0); +MODULE_PARM_DESC(bpp, "pixel width in bits" + "(default=8)"); #ifdef CONFIG_MTRR module_param(nomtrr, bool, 0); MODULE_PARM_DESC(nomtrr, "Disables MTRR support (0 or 1=disabled) " |