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path: root/drivers/video/macmodes.c
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Diffstat (limited to 'drivers/video/macmodes.c')
-rw-r--r--drivers/video/macmodes.c80
1 files changed, 53 insertions, 27 deletions
diff --git a/drivers/video/macmodes.c b/drivers/video/macmodes.c
index 083f60321ed..af86c081d2b 100644
--- a/drivers/video/macmodes.c
+++ b/drivers/video/macmodes.c
@@ -33,6 +33,10 @@
static const struct fb_videomode mac_modedb[] = {
{
+ /* 512x384, 60Hz, Non-Interlaced (15.67 MHz dot clock) */
+ "mac2", 60, 512, 384, 63828, 80, 16, 19, 1, 32, 3,
+ 0, FB_VMODE_NONINTERLACED
+ }, {
/* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */
"mac5", 60, 640, 480, 39722, 32, 32, 33, 10, 96, 2,
0, FB_VMODE_NONINTERLACED
@@ -41,6 +45,10 @@ static const struct fb_videomode mac_modedb[] = {
"mac6", 67, 640, 480, 33334, 80, 80, 39, 3, 64, 3,
0, FB_VMODE_NONINTERLACED
}, {
+ /* 640x870, 75Hz (portrait), Non-Interlaced (57.28 MHz dot clock) */
+ "mac7", 75, 640, 870, 17457, 80, 32, 42, 3, 80, 3,
+ 0, FB_VMODE_NONINTERLACED
+ }, {
/* 800x600, 56 Hz, Non-Interlaced (36.00 MHz dotclock) */
"mac9", 56, 800, 600, 27778, 112, 40, 22, 1, 72, 2,
FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
@@ -105,10 +113,6 @@ static const struct fb_videomode mac_modedb[] = {
"mac1", 60, 512, 384, pixclock, left, right, upper, lower, hslen, vslen,
sync, FB_VMODE_INTERLACED
}, {
- /* VMODE_512_384_60: 512x384, 60Hz, Non-Interlaced */
- "mac2", 60, 512, 384, pixclock, left, right, upper, lower, hslen, vslen,
- sync, FB_VMODE_NONINTERLACED
- }, {
/* VMODE_640_480_50I: 640x480, 50Hz, Interlaced (PAL) */
"mac3", 50, 640, 480, pixclock, left, right, upper, lower, hslen, vslen,
sync, FB_VMODE_INTERLACED
@@ -117,10 +121,6 @@ static const struct fb_videomode mac_modedb[] = {
"mac4", 60, 640, 480, pixclock, left, right, upper, lower, hslen, vslen,
sync, FB_VMODE_INTERLACED
}, {
- /* VMODE_640_870_75P: 640x870, 75Hz (portrait), Non-Interlaced */
- "mac7", 75, 640, 870, pixclock, left, right, upper, lower, hslen, vslen,
- sync, FB_VMODE_NONINTERLACED
- }, {
/* VMODE_768_576_50I: 768x576, 50Hz (PAL full frame), Interlaced */
"mac8", 50, 768, 576, pixclock, left, right, upper, lower, hslen, vslen,
sync, FB_VMODE_INTERLACED
@@ -134,38 +134,42 @@ static const struct fb_videomode mac_modedb[] = {
*
* These MUST be ordered in
* - increasing resolution
- * - decreasing refresh rate
+ * - decreasing pixel clock period
*/
static const struct mode_map {
int vmode;
const struct fb_videomode *mode;
} mac_modes[] = {
+ /* 512x384 */
+ { VMODE_512_384_60, &mac_modedb[0] },
/* 640x480 */
- { VMODE_640_480_67, &mac_modedb[1] },
- { VMODE_640_480_60, &mac_modedb[0] },
+ { VMODE_640_480_60, &mac_modedb[1] },
+ { VMODE_640_480_67, &mac_modedb[2] },
+ /* 640x870 */
+ { VMODE_640_870_75P, &mac_modedb[3] },
/* 800x600 */
- { VMODE_800_600_75, &mac_modedb[5] },
- { VMODE_800_600_72, &mac_modedb[4] },
- { VMODE_800_600_60, &mac_modedb[3] },
- { VMODE_800_600_56, &mac_modedb[2] },
+ { VMODE_800_600_56, &mac_modedb[4] },
+ { VMODE_800_600_60, &mac_modedb[5] },
+ { VMODE_800_600_75, &mac_modedb[7] },
+ { VMODE_800_600_72, &mac_modedb[6] },
/* 832x624 */
- { VMODE_832_624_75, &mac_modedb[6] },
+ { VMODE_832_624_75, &mac_modedb[8] },
/* 1024x768 */
- { VMODE_1024_768_75, &mac_modedb[10] },
- { VMODE_1024_768_75V, &mac_modedb[9] },
- { VMODE_1024_768_70, &mac_modedb[8] },
- { VMODE_1024_768_60, &mac_modedb[7] },
+ { VMODE_1024_768_60, &mac_modedb[9] },
+ { VMODE_1024_768_70, &mac_modedb[10] },
+ { VMODE_1024_768_75V, &mac_modedb[11] },
+ { VMODE_1024_768_75, &mac_modedb[12] },
/* 1152x768 */
- { VMODE_1152_768_60, &mac_modedb[14] },
+ { VMODE_1152_768_60, &mac_modedb[16] },
/* 1152x870 */
- { VMODE_1152_870_75, &mac_modedb[11] },
+ { VMODE_1152_870_75, &mac_modedb[13] },
/* 1280x960 */
- { VMODE_1280_960_75, &mac_modedb[12] },
+ { VMODE_1280_960_75, &mac_modedb[14] },
/* 1280x1024 */
- { VMODE_1280_1024_75, &mac_modedb[13] },
+ { VMODE_1280_1024_75, &mac_modedb[15] },
/* 1600x1024 */
- { VMODE_1600_1024_60, &mac_modedb[15] },
+ { VMODE_1600_1024_60, &mac_modedb[17] },
{ -1, NULL }
};
@@ -299,7 +303,6 @@ EXPORT_SYMBOL(mac_vmode_to_var);
int mac_var_to_vmode(const struct fb_var_screeninfo *var, int *vmode,
int *cmode)
{
- const struct fb_videomode *mode = NULL;
const struct mode_map *map;
if (var->bits_per_pixel <= 8)
@@ -311,8 +314,13 @@ int mac_var_to_vmode(const struct fb_var_screeninfo *var, int *vmode,
else
return -EINVAL;
+ /*
+ * Find the mac_mode with a matching resolution or failing that, the
+ * closest larger resolution. Skip modes with a shorter pixel clock period.
+ */
for (map = mac_modes; map->vmode != -1; map++) {
- mode = map->mode;
+ const struct fb_videomode *mode = map->mode;
+
if (var->xres > mode->xres || var->yres > mode->yres)
continue;
if (var->xres_virtual > mode->xres || var->yres_virtual > mode->yres)
@@ -322,6 +330,24 @@ int mac_var_to_vmode(const struct fb_var_screeninfo *var, int *vmode,
if ((var->vmode & FB_VMODE_MASK) != mode->vmode)
continue;
*vmode = map->vmode;
+
+ /*
+ * Having found a good resolution, find the matching pixel clock
+ * or failing that, the closest longer pixel clock period.
+ */
+ map++;
+ while (map->vmode != -1) {
+ const struct fb_videomode *clk_mode = map->mode;
+
+ if (mode->xres != clk_mode->xres || mode->yres != clk_mode->yres)
+ break;
+ if (var->pixclock > mode->pixclock)
+ break;
+ if (mode->vmode != clk_mode->vmode)
+ continue;
+ *vmode = map->vmode;
+ map++;
+ }
return 0;
}
return -EINVAL;
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-21 03:43:50 +0000