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drm/edid: split VIC display mode lookup into a separate function

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Signed-off-by: Thomas Wood <thomas.wood@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Thomas Wood 2013-11-29 15:33:27 +00:00 committed by Daniel Vetter
parent 0993f1d0d8
commit aff04ace4e
1 changed files with 39 additions and 28 deletions
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67
drivers/gpu/drm/drm_edid.c
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@ -2562,25 +2562,40 @@ add_alternate_cea_modes(struct drm_connector *connector, struct edid *edid)
return modes;
}
static struct drm_display_mode *
drm_display_mode_from_vic_index(struct drm_connector *connector,
const u8 *video_db, u8 video_len,
u8 video_index)
{
struct drm_device *dev = connector->dev;
struct drm_display_mode *newmode;
u8 cea_mode;
if (video_db == NULL || video_index >= video_len)
return NULL;
/* CEA modes are numbered 1..127 */
cea_mode = (video_db[video_index] & 127) - 1;
if (cea_mode >= ARRAY_SIZE(edid_cea_modes))
return NULL;
newmode = drm_mode_duplicate(dev, &edid_cea_modes[cea_mode]);
newmode->vrefresh = 0;
return newmode;
}
static int
do_cea_modes(struct drm_connector *connector, const u8 *db, u8 len)
{
struct drm_device *dev = connector->dev;
const u8 *mode;
u8 cea_mode;
int modes = 0;
int i, modes = 0;
for (mode = db; mode < db + len; mode++) {
cea_mode = (*mode & 127) - 1; /* CEA modes are numbered 1..127 */
if (cea_mode < ARRAY_SIZE(edid_cea_modes)) {
struct drm_display_mode *newmode;
newmode = drm_mode_duplicate(dev,
&edid_cea_modes[cea_mode]);
if (newmode) {
newmode->vrefresh = 0;
drm_mode_probed_add(connector, newmode);
modes++;
}
for (i = 0; i < len; i++) {
struct drm_display_mode *mode;
mode = drm_display_mode_from_vic_index(connector, db, len, i);
if (mode) {
drm_mode_probed_add(connector, mode);
modes++;
}
}
@ -2674,21 +2689,13 @@ static int add_hdmi_mode(struct drm_connector *connector, u8 vic)
static int add_3d_struct_modes(struct drm_connector *connector, u16 structure,
const u8 *video_db, u8 video_len, u8 video_index)
{
struct drm_device *dev = connector->dev;
struct drm_display_mode *newmode;
int modes = 0;
u8 cea_mode;
if (video_db == NULL || video_index >= video_len)
return 0;
/* CEA modes are numbered 1..127 */
cea_mode = (video_db[video_index] & 127) - 1;
if (cea_mode >= ARRAY_SIZE(edid_cea_modes))
return 0;
if (structure & (1 << 0)) {
newmode = drm_mode_duplicate(dev, &edid_cea_modes[cea_mode]);
newmode = drm_display_mode_from_vic_index(connector, video_db,
video_len,
video_index);
if (newmode) {
newmode->flags |= DRM_MODE_FLAG_3D_FRAME_PACKING;
drm_mode_probed_add(connector, newmode);
@ -2696,7 +2703,9 @@ static int add_3d_struct_modes(struct drm_connector *connector, u16 structure,
}
}
if (structure & (1 << 6)) {
newmode = drm_mode_duplicate(dev, &edid_cea_modes[cea_mode]);
newmode = drm_display_mode_from_vic_index(connector, video_db,
video_len,
video_index);
if (newmode) {
newmode->flags |= DRM_MODE_FLAG_3D_TOP_AND_BOTTOM;
drm_mode_probed_add(connector, newmode);
@ -2704,7 +2713,9 @@ static int add_3d_struct_modes(struct drm_connector *connector, u16 structure,
}
}
if (structure & (1 << 8)) {
newmode = drm_mode_duplicate(dev, &edid_cea_modes[cea_mode]);
newmode = drm_display_mode_from_vic_index(connector, video_db,
video_len,
video_index);
if (newmode) {
newmode->flags |= DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF;
drm_mode_probed_add(connector, newmode);