diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/s3fb.c | 9 | ||||
| -rw-r--r-- | drivers/video/svgalib.c | 47 |
2 files changed, 38 insertions, 18 deletions
diff --git a/drivers/video/s3fb.c b/drivers/video/s3fb.c index d11735895a0..a96ac439217 100644 --- a/drivers/video/s3fb.c +++ b/drivers/video/s3fb.c @@ -403,8 +403,13 @@ static int s3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) /* Find appropriate format */ rv = svga_match_format (s3fb_formats, var, NULL); - if ((rv < 0) || ((par->chip == CHIP_988_VIRGE_VX) ? (rv == 7) : (rv == 6))) - { /* 24bpp on VIRGE VX, 32bpp on others */ + + /* 32bpp mode is not supported on VIRGE VX, + 24bpp is not supported on others */ + if ((par->chip == CHIP_988_VIRGE_VX) ? (rv == 7) : (rv == 6)) + rv = -EINVAL; + + if (rv < 0) { printk(KERN_ERR "fb%d: unsupported mode requested\n", info->node); return rv; } diff --git a/drivers/video/svgalib.c b/drivers/video/svgalib.c index 25df928d37d..9c710670157 100644 --- a/drivers/video/svgalib.c +++ b/drivers/video/svgalib.c @@ -598,9 +598,11 @@ void svga_set_timings(const struct svga_timing_regs *tm, struct fb_var_screeninf /* ------------------------------------------------------------------------- */ -int svga_match_format(const struct svga_fb_format *frm, struct fb_var_screeninfo *var, struct fb_fix_screeninfo *fix) +static inline int match_format(const struct svga_fb_format *frm, + struct fb_var_screeninfo *var) { int i = 0; + int stored = -EINVAL; while (frm->bits_per_pixel != SVGA_FORMAT_END_VAL) { @@ -609,25 +611,38 @@ int svga_match_format(const struct svga_fb_format *frm, struct fb_var_screeninfo (var->green.length <= frm->green.length) && (var->blue.length <= frm->blue.length) && (var->transp.length <= frm->transp.length) && - (var->nonstd == frm->nonstd)) { - var->bits_per_pixel = frm->bits_per_pixel; - var->red = frm->red; - var->green = frm->green; - var->blue = frm->blue; - var->transp = frm->transp; - var->nonstd = frm->nonstd; - if (fix != NULL) { - fix->type = frm->type; - fix->type_aux = frm->type_aux; - fix->visual = frm->visual; - fix->xpanstep = frm->xpanstep; - } + (var->nonstd == frm->nonstd)) return i; - } + if (var->bits_per_pixel == frm->bits_per_pixel) + stored = i; i++; frm++; } - return -EINVAL; + return stored; +} + +int svga_match_format(const struct svga_fb_format *frm, + struct fb_var_screeninfo *var, + struct fb_fix_screeninfo *fix) +{ + int i = match_format(frm, var); + + if (i >= 0) { + var->bits_per_pixel = frm[i].bits_per_pixel; + var->red = frm[i].red; + var->green = frm[i].green; + var->blue = frm[i].blue; + var->transp = frm[i].transp; + var->nonstd = frm[i].nonstd; + if (fix != NULL) { + fix->type = frm[i].type; + fix->type_aux = frm[i].type_aux; + fix->visual = frm[i].visual; + fix->xpanstep = frm[i].xpanstep; + } + } + + return i; } |