diff options
| -rw-r--r-- | drivers/video/tdfxfb.c | 67 |
1 files changed, 63 insertions, 4 deletions
diff --git a/drivers/video/tdfxfb.c b/drivers/video/tdfxfb.c index bc6f916c53be..89f231dc443f 100644 --- a/drivers/video/tdfxfb.c +++ b/drivers/video/tdfxfb.c @@ -487,6 +487,12 @@ static int tdfxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) return -EINVAL; } + if (info->monspecs.hfmax && info->monspecs.vfmax && + info->monspecs.dclkmax && fb_validate_mode(var, info) < 0) { + DPRINTK("mode outside monitor's specs\n"); + return -EINVAL; + } + var->xres = (var->xres + 15) & ~15; /* could sometimes be 8 */ lpitch = var->xres * ((var->bits_per_pixel + 7) >> 3); @@ -1355,6 +1361,23 @@ static void tdfxfb_delete_i2c_busses(struct tdfx_par *par) i2c_del_adapter(&par->chan[1].adapter); par->chan[1].par = NULL; } + +static int tdfxfb_probe_i2c_connector(struct tdfx_par *par, + struct fb_monspecs *specs) +{ + u8 *edid = NULL; + + DPRINTK("Probe DDC Bus\n"); + if (par->chan[0].par) + edid = fb_ddc_read(&par->chan[0].adapter); + + if (edid) { + fb_edid_to_monspecs(edid, specs); + kfree(edid); + return 0; + } + return 1; +} #endif /* CONFIG_FB_3DFX_I2C */ /** @@ -1372,6 +1395,8 @@ static int __devinit tdfxfb_probe(struct pci_dev *pdev, struct tdfx_par *default_par; struct fb_info *info; int err, lpitch; + struct fb_monspecs *specs; + bool found; err = pci_enable_device(pdev); if (err) { @@ -1474,15 +1499,49 @@ static int __devinit tdfxfb_probe(struct pci_dev *pdev, if (hwcursor) info->fix.smem_len = (info->fix.smem_len - 1024) & (PAGE_MASK << 1); + specs = &info->monspecs; + found = false; + info->var.bits_per_pixel = 8; #ifdef CONFIG_FB_3DFX_I2C tdfxfb_create_i2c_busses(info); + err = tdfxfb_probe_i2c_connector(default_par, specs); + + if (!err) { + if (specs->modedb == NULL) + DPRINTK("Unable to get Mode Database\n"); + else { + const struct fb_videomode *m; + + fb_videomode_to_modelist(specs->modedb, + specs->modedb_len, + &info->modelist); + m = fb_find_best_display(specs, &info->modelist); + if (m) { + fb_videomode_to_var(&info->var, m); + /* fill all other info->var's fields */ + if (tdfxfb_check_var(&info->var, info) < 0) + info->var = tdfx_var; + else + found = true; + } + } + } #endif - if (!mode_option) + if (!mode_option && !found) mode_option = "640x480@60"; - err = fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL, 8); - if (!err || err == 4) - info->var = tdfx_var; + if (mode_option) { + err = fb_find_mode(&info->var, info, mode_option, + specs->modedb, specs->modedb_len, + NULL, info->var.bits_per_pixel); + if (!err || err == 4) + info->var = tdfx_var; + } + + if (found) { + fb_destroy_modedb(specs->modedb); + specs->modedb = NULL; + } /* maximize virtual vertical length */ lpitch = info->var.xres_virtual * ((info->var.bits_per_pixel + 7) >> 3); |