diff options
Diffstat (limited to 'drivers/video/via/viamode.c')
| -rw-r--r-- | drivers/video/via/viamode.c | 56 |
1 files changed, 43 insertions, 13 deletions
diff --git a/drivers/video/via/viamode.c b/drivers/video/via/viamode.c index 8a9f4fcb50e9..88096e5fa077 100644 --- a/drivers/video/via/viamode.c +++ b/drivers/video/via/viamode.c @@ -863,26 +863,56 @@ int NUM_TOTAL_CLE266_ModeXregs = ARRAY_SIZE(CLE266_ModeXregs); int NUM_TOTAL_PATCH_MODE = ARRAY_SIZE(res_patch_table); -struct VideoModeTable *viafb_get_mode(int hres, int vres) +static struct VideoModeTable *get_modes(struct VideoModeTable *vmt, int n, + int hres, int vres) { - u32 i; - for (i = 0; i < ARRAY_SIZE(viafb_modes); i++) - if (viafb_modes[i].mode_array && - viafb_modes[i].crtc[0].crtc.hor_addr == hres && - viafb_modes[i].crtc[0].crtc.ver_addr == vres) + int i; + + for (i = 0; i < n; i++) + if (vmt[i].mode_array && + vmt[i].crtc[0].crtc.hor_addr == hres && + vmt[i].crtc[0].crtc.ver_addr == vres) return &viafb_modes[i]; return NULL; } +static struct crt_mode_table *get_best_mode(struct VideoModeTable *vmt, + int refresh) +{ + struct crt_mode_table *best; + int i; + + if (!vmt) + return NULL; + + best = &vmt->crtc[0]; + for (i = 1; i < vmt->mode_array; i++) { + if (abs(vmt->crtc[i].refresh_rate - refresh) + < abs(best->refresh_rate - refresh)) + best = &vmt->crtc[i]; + } + + return best; +} + +struct VideoModeTable *viafb_get_mode(int hres, int vres) +{ + return get_modes(viafb_modes, ARRAY_SIZE(viafb_modes), hres, vres); +} + +struct crt_mode_table *viafb_get_best_mode(int hres, int vres, int refresh) +{ + return get_best_mode(viafb_get_mode(hres, vres), refresh); +} + struct VideoModeTable *viafb_get_rb_mode(int hres, int vres) { - u32 i; - for (i = 0; i < ARRAY_SIZE(viafb_rb_modes); i++) - if (viafb_rb_modes[i].mode_array && - viafb_rb_modes[i].crtc[0].crtc.hor_addr == hres && - viafb_rb_modes[i].crtc[0].crtc.ver_addr == vres) - return &viafb_rb_modes[i]; + return get_modes(viafb_rb_modes, ARRAY_SIZE(viafb_rb_modes), hres, + vres); +} - return NULL; +struct crt_mode_table *viafb_get_best_rb_mode(int hres, int vres, int refresh) +{ + return get_best_mode(viafb_get_rb_mode(hres, vres), refresh); } |