diff options
| -rw-r--r-- | drivers/video/via/viafbdev.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/video/via/viafbdev.c b/drivers/video/via/viafbdev.c index 164c6ea603d2..50f486d9b087 100644 --- a/drivers/video/via/viafbdev.c +++ b/drivers/video/via/viafbdev.c @@ -56,6 +56,31 @@ static int viafb_pan_display(struct fb_var_screeninfo *var, static struct fb_ops viafb_ops; +/* supported output devices on each IGP + * only CX700, VX800, VX855 were documented + * VIA_CRT should be everywhere + * VIA_6C can be onle pre-CX700 (probably only on CLE266) as 6C is used for PLL + * source selection on CX700 and later + * K400 seems to support VIA_96, VIA_DVP1, VIA_LVDS{1,2} as in viamode.c + */ +static const u32 supported_odev_map[] = { + [UNICHROME_CLE266] = VIA_CRT | VIA_6C | VIA_93, + [UNICHROME_K400] = VIA_CRT | VIA_96 | VIA_DVP1 | VIA_LVDS1 + | VIA_LVDS2, + [UNICHROME_K800] = VIA_CRT | VIA_96 | VIA_DVP1 | VIA_LVDS1 + | VIA_LVDS2, + [UNICHROME_PM800] = VIA_CRT | VIA_96 | VIA_DVP1 | VIA_LVDS1 + | VIA_LVDS2, + [UNICHROME_CN700] = VIA_CRT | VIA_96 | VIA_DVP1 | VIA_LVDS1 + | VIA_LVDS2, + [UNICHROME_CX700] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2, + [UNICHROME_CN750] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2, + [UNICHROME_K8M890] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2, + [UNICHROME_P4M890] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2, + [UNICHROME_P4M900] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2, + [UNICHROME_VX800] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2, + [UNICHROME_VX855] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2, +}; static void viafb_fill_var_color_info(struct fb_var_screeninfo *var, u8 depth) { @@ -1433,6 +1458,26 @@ static const struct file_operations viafb_vt1636_proc_fops = { #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */ +static int viafb_sup_odev_proc_show(struct seq_file *m, void *v) +{ + via_odev_to_seq(m, supported_odev_map[ + viaparinfo->shared->chip_info.gfx_chip_name]); + return 0; +} + +static int viafb_sup_odev_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, viafb_sup_odev_proc_show, NULL); +} + +static const struct file_operations viafb_sup_odev_proc_fops = { + .owner = THIS_MODULE, + .open = viafb_sup_odev_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + static ssize_t odev_update(const char __user *buffer, size_t count, u32 *odev) { char buf[64], *ptr = buf; @@ -1561,6 +1606,8 @@ static void viafb_init_proc(struct viafb_shared *shared) &viafb_vt1636_proc_fops); #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */ + proc_create("supported_output_devices", 0, viafb_entry, + &viafb_sup_odev_proc_fops); iga1_entry = proc_mkdir("iga1", viafb_entry); shared->iga1_proc_entry = iga1_entry; proc_create("output_devices", 0, iga1_entry, @@ -1584,6 +1631,7 @@ static void viafb_remove_proc(struct viafb_shared *shared) remove_proc_entry("iga2", viafb_entry); remove_proc_entry("output_devices", iga1_entry); remove_proc_entry("iga1", viafb_entry); + remove_proc_entry("supported_output_devices", viafb_entry); #ifdef CONFIG_FB_VIA_DIRECT_PROCFS remove_proc_entry("dvp0", viafb_entry);/* parent dir */ |