diff options
Diffstat (limited to 'drivers/video/cirrusfb.c')
| -rw-r--r-- | drivers/video/cirrusfb.c | 126 |
1 files changed, 21 insertions, 105 deletions
diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c index 0eb429a3573..4c16b68a9c5 100644 --- a/drivers/video/cirrusfb.c +++ b/drivers/video/cirrusfb.c @@ -372,98 +372,8 @@ struct cirrusfb_info { void (*unmap)(struct fb_info *info); }; -static unsigned cirrusfb_def_mode = 1; static int noaccel; - -/* - * Predefined Video Modes - */ - -static const struct { - const char *name; - struct fb_var_screeninfo var; -} cirrusfb_predefined[] = { - { - /* autodetect mode */ - .name = "Autodetect", - }, { - /* 640x480, 31.25 kHz, 60 Hz, 25 MHz PixClock */ - .name = "640x480", - .var = { - .xres = 640, - .yres = 480, - .xres_virtual = 640, - .yres_virtual = 480, - .bits_per_pixel = 8, - .red = { .length = 8 }, - .green = { .length = 8 }, - .blue = { .length = 8 }, - .width = -1, - .height = -1, - .pixclock = 40000, - .left_margin = 48, - .right_margin = 16, - .upper_margin = 32, - .lower_margin = 8, - .hsync_len = 96, - .vsync_len = 4, - .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, - .vmode = FB_VMODE_NONINTERLACED - } - }, { - /* 800x600, 48 kHz, 76 Hz, 50 MHz PixClock */ - .name = "800x600", - .var = { - .xres = 800, - .yres = 600, - .xres_virtual = 800, - .yres_virtual = 600, - .bits_per_pixel = 8, - .red = { .length = 8 }, - .green = { .length = 8 }, - .blue = { .length = 8 }, - .width = -1, - .height = -1, - .pixclock = 20000, - .left_margin = 128, - .right_margin = 16, - .upper_margin = 24, - .lower_margin = 2, - .hsync_len = 96, - .vsync_len = 6, - .vmode = FB_VMODE_NONINTERLACED - } - }, { - /* - * Modeline from XF86Config: - * Mode "1024x768" 80 1024 1136 1340 1432 768 770 774 805 - */ - /* 1024x768, 55.8 kHz, 70 Hz, 80 MHz PixClock */ - .name = "1024x768", - .var = { - .xres = 1024, - .yres = 768, - .xres_virtual = 1024, - .yres_virtual = 768, - .bits_per_pixel = 8, - .red = { .length = 8 }, - .green = { .length = 8 }, - .blue = { .length = 8 }, - .width = -1, - .height = -1, - .pixclock = 12500, - .left_margin = 144, - .right_margin = 32, - .upper_margin = 30, - .lower_margin = 2, - .hsync_len = 192, - .vsync_len = 6, - .vmode = FB_VMODE_NONINTERLACED - } - } -}; - -#define NUM_TOTAL_MODES ARRAY_SIZE(cirrusfb_predefined) +static char *mode_option __devinitdata = "640x480@60"; /****************************************************************************/ /**** BEGIN PROTOTYPES ******************************************************/ @@ -2267,23 +2177,27 @@ static int cirrusfb_register(struct fb_info *info) /* sanity checks */ assert(btype != BT_NONE); + /* set all the vital stuff */ + cirrusfb_set_fbinfo(info); + DPRINTK("cirrusfb: (RAM start set to: 0x%p)\n", info->screen_base); - /* Make pretend we've set the var so our structures are in a "good" */ - /* state, even though we haven't written the mode to the hw yet... */ - info->var = cirrusfb_predefined[cirrusfb_def_mode].var; + err = fb_find_mode(&info->var, info, mode_option, NULL, 0, NULL, 8); + if (!err) { + DPRINTK("wrong initial video mode\n"); + err = -EINVAL; + goto err_dealloc_cmap; + } + info->var.activate = FB_ACTIVATE_NOW; err = cirrusfb_decode_var(&info->var, &cinfo->currentmode, info); if (err < 0) { /* should never happen */ DPRINTK("choking on default var... umm, no good.\n"); - goto err_unmap_cirrusfb; + goto err_dealloc_cmap; } - /* set all the vital stuff */ - cirrusfb_set_fbinfo(info); - err = register_framebuffer(info); if (err < 0) { printk(KERN_ERR "cirrusfb: could not register " @@ -2296,7 +2210,6 @@ static int cirrusfb_register(struct fb_info *info) err_dealloc_cmap: fb_dealloc_cmap(&info->cmap); -err_unmap_cirrusfb: cinfo->unmap(info); framebuffer_release(info); return err; @@ -2608,17 +2521,17 @@ static int __init cirrusfb_setup(char *options) { return 0; while ((this_opt = strsep(&options, ",")) != NULL) { - if (!*this_opt) continue; + if (!*this_opt) + continue; DPRINTK("cirrusfb_setup: option '%s'\n", this_opt); - for (i = 0; i < NUM_TOTAL_MODES; i++) { - sprintf(s, "mode:%s", cirrusfb_predefined[i].name); - if (strcmp(this_opt, s) == 0) - cirrusfb_def_mode = i; - } if (!strcmp(this_opt, "noaccel")) noaccel = 1; + else if (!strncmp(this_opt, "mode:", 5)) + mode_option = this_opt + 5; + else + mode_option = this_opt; } return 0; } @@ -2644,6 +2557,9 @@ static void __exit cirrusfb_exit(void) module_init(cirrusfb_init); +module_param(mode_option, charp, 0); +MODULE_PARM_DESC(mode_option, "Initial video mode e.g. '648x480-8@60'"); + #ifdef MODULE module_exit(cirrusfb_exit); #endif |