diff options
Diffstat (limited to 'drivers/video/via/hw.c')
| -rw-r--r-- | drivers/video/via/hw.c | 50 |
1 files changed, 29 insertions, 21 deletions
diff --git a/drivers/video/via/hw.c b/drivers/video/via/hw.c index 9ecf48620d0..8c1393e49b0 100644 --- a/drivers/video/via/hw.c +++ b/drivers/video/via/hw.c @@ -2608,35 +2608,43 @@ int viafb_setmode(struct VideoModeTable *vmode_tbl, int video_bpp, int viafb_get_pixclock(int hres, int vres, int vmode_refresh) { int i; + struct crt_mode_table *best; + struct VideoModeTable *vmode = viafb_get_mode(hres, vres); - for (i = 0; i < NUM_TOTAL_RES_MAP_REFRESH; i++) { - if ((hres == res_map_refresh_tbl[i].hres) - && (vres == res_map_refresh_tbl[i].vres) - && (vmode_refresh == res_map_refresh_tbl[i].vmode_refresh)) - return res_map_refresh_tbl[i].pixclock; + if (!vmode) + return RES_640X480_60HZ_PIXCLOCK; + + best = &vmode->crtc[0]; + for (i = 1; i < vmode->mode_array; i++) { + if (abs(vmode->crtc[i].refresh_rate - vmode_refresh) + < abs(best->refresh_rate - vmode_refresh)) + best = &vmode->crtc[i]; } - return RES_640X480_60HZ_PIXCLOCK; + return 1000000000 / (best->crtc.hor_total * best->crtc.ver_total) + * 1000 / best->refresh_rate; } int viafb_get_refresh(int hres, int vres, u32 long_refresh) { -#define REFRESH_TOLERANCE 3 - int i, nearest = -1, diff = REFRESH_TOLERANCE; - for (i = 0; i < NUM_TOTAL_RES_MAP_REFRESH; i++) { - if ((hres == res_map_refresh_tbl[i].hres) - && (vres == res_map_refresh_tbl[i].vres) - && (diff > (abs(long_refresh - - res_map_refresh_tbl[i].vmode_refresh)))) { - diff = abs(long_refresh - res_map_refresh_tbl[i]. - vmode_refresh); - nearest = i; - } + int i; + struct crt_mode_table *best; + struct VideoModeTable *vmode = viafb_get_mode(hres, vres); + + if (!vmode) + return 60; + + best = &vmode->crtc[0]; + for (i = 1; i < vmode->mode_array; i++) { + if (abs(vmode->crtc[i].refresh_rate - long_refresh) + < abs(best->refresh_rate - long_refresh)) + best = &vmode->crtc[i]; } -#undef REFRESH_TOLERANCE - if (nearest > 0) - return res_map_refresh_tbl[nearest].vmode_refresh; - return 60; + + if (abs(best->refresh_rate - long_refresh) > 3) + return 60; + + return best->refresh_rate; } static void device_off(void) |