#define EDID_QUIRK_FORCE_REDUCED_BLANKING (1 << 7)
/* Force 8bpc */
#define EDID_QUIRK_FORCE_8BPC (1 << 8)
+/* Force 12bpc */
+#define EDID_QUIRK_FORCE_12BPC (1 << 9)
struct detailed_mode_closure {
struct drm_connector *connector;
{ "SAM", 596, EDID_QUIRK_PREFER_LARGE_60 },
{ "SAM", 638, EDID_QUIRK_PREFER_LARGE_60 },
+ /* Sony PVM-2541A does up to 12 bpc, but only reports max 8 bpc */
+ { "SNY", 0x2541, EDID_QUIRK_FORCE_12BPC },
+
/* ViewSonic VA2026w */
{ "VSC", 5020, EDID_QUIRK_FORCE_REDUCED_BLANKING },
if (i == 4 && print_bad_edid) {
dev_warn(connector->dev->dev,
"%s: Ignoring invalid EDID block %d.\n",
- drm_get_connector_name(connector), j);
+ connector->name, j);
connector->bad_edid_counter++;
}
carp:
if (print_bad_edid) {
dev_warn(connector->dev->dev, "%s: EDID block %d invalid.\n",
- drm_get_connector_name(connector), j);
+ connector->name, j);
}
connector->bad_edid_counter++;
/* Speaker Allocation Data Block */
if (dbl == 3) {
- *sadb = kmalloc(dbl, GFP_KERNEL);
+ *sadb = kmemdup(&db[1], dbl, GFP_KERNEL);
if (!*sadb)
return -ENOMEM;
- memcpy(*sadb, &db[1], dbl);
count = dbl;
break;
}
struct drm_connector *connector;
struct drm_device *dev = encoder->dev;
+ WARN_ON(!mutex_is_locked(&dev->mode_config.mutex));
+
list_for_each_entry(connector, &dev->mode_config.connector_list, head)
if (connector->encoder == encoder && connector->eld[0])
return connector;
}
EXPORT_SYMBOL(drm_rgb_quant_range_selectable);
+/**
+ * drm_assign_hdmi_deep_color_info - detect whether monitor supports
+ * hdmi deep color modes and update drm_display_info if so.
+ *
+ * @edid: monitor EDID information
+ * @info: Updated with maximum supported deep color bpc and color format
+ * if deep color supported.
+ *
+ * Parse the CEA extension according to CEA-861-B.
+ * Return true if HDMI deep color supported, false if not or unknown.
+ */
+static bool drm_assign_hdmi_deep_color_info(struct edid *edid,
+ struct drm_display_info *info,
+ struct drm_connector *connector)
+{
+ u8 *edid_ext, *hdmi;
+ int i;
+ int start_offset, end_offset;
+ unsigned int dc_bpc = 0;
+
+ edid_ext = drm_find_cea_extension(edid);
+ if (!edid_ext)
+ return false;
+
+ if (cea_db_offsets(edid_ext, &start_offset, &end_offset))
+ return false;
+
+ /*
+ * Because HDMI identifier is in Vendor Specific Block,
+ * search it from all data blocks of CEA extension.
+ */
+ for_each_cea_db(edid_ext, i, start_offset, end_offset) {
+ if (cea_db_is_hdmi_vsdb(&edid_ext[i])) {
+ /* HDMI supports at least 8 bpc */
+ info->bpc = 8;
+
+ hdmi = &edid_ext[i];
+ if (cea_db_payload_len(hdmi) < 6)
+ return false;
+
+ if (hdmi[6] & DRM_EDID_HDMI_DC_30) {
+ dc_bpc = 10;
+ info->edid_hdmi_dc_modes |= DRM_EDID_HDMI_DC_30;
+ DRM_DEBUG("%s: HDMI sink does deep color 30.\n",
+ connector->name);
+ }
+
+ if (hdmi[6] & DRM_EDID_HDMI_DC_36) {
+ dc_bpc = 12;
+ info->edid_hdmi_dc_modes |= DRM_EDID_HDMI_DC_36;
+ DRM_DEBUG("%s: HDMI sink does deep color 36.\n",
+ connector->name);
+ }
+
+ if (hdmi[6] & DRM_EDID_HDMI_DC_48) {
+ dc_bpc = 16;
+ info->edid_hdmi_dc_modes |= DRM_EDID_HDMI_DC_48;
+ DRM_DEBUG("%s: HDMI sink does deep color 48.\n",
+ connector->name);
+ }
+
+ if (dc_bpc > 0) {
+ DRM_DEBUG("%s: Assigning HDMI sink color depth as %d bpc.\n",
+ connector->name, dc_bpc);
+ info->bpc = dc_bpc;
+
+ /*
+ * Deep color support mandates RGB444 support for all video
+ * modes and forbids YCRCB422 support for all video modes per
+ * HDMI 1.3 spec.
+ */
+ info->color_formats = DRM_COLOR_FORMAT_RGB444;
+
+ /* YCRCB444 is optional according to spec. */
+ if (hdmi[6] & DRM_EDID_HDMI_DC_Y444) {
+ info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
+ DRM_DEBUG("%s: HDMI sink does YCRCB444 in deep color.\n",
+ connector->name);
+ }
+
+ /*
+ * Spec says that if any deep color mode is supported at all,
+ * then deep color 36 bit must be supported.
+ */
+ if (!(hdmi[6] & DRM_EDID_HDMI_DC_36)) {
+ DRM_DEBUG("%s: HDMI sink should do DC_36, but does not!\n",
+ connector->name);
+ }
+
+ return true;
+ }
+ else {
+ DRM_DEBUG("%s: No deep color support on this HDMI sink.\n",
+ connector->name);
+ }
+ }
+ }
+
+ return false;
+}
+
/**
* drm_add_display_info - pull display info out if present
* @edid: EDID data
* @info: display info (attached to connector)
+ * @connector: connector whose edid is used to build display info
*
* Grab any available display info and stuff it into the drm_display_info
* structure that's part of the connector. Useful for tracking bpp and
* color spaces.
*/
static void drm_add_display_info(struct edid *edid,
- struct drm_display_info *info)
+ struct drm_display_info *info,
+ struct drm_connector *connector)
{
u8 *edid_ext;
info->color_formats |= DRM_COLOR_FORMAT_YCRCB422;
}
+ /* HDMI deep color modes supported? Assign to info, if so */
+ drm_assign_hdmi_deep_color_info(edid, info, connector);
+
/* Only defined for 1.4 with digital displays */
if (edid->revision < 4)
return;
break;
}
+ DRM_DEBUG("%s: Assigning EDID-1.4 digital sink color depth as %d bpc.\n",
+ connector->name, info->bpc);
+
info->color_formats |= DRM_COLOR_FORMAT_RGB444;
if (edid->features & DRM_EDID_FEATURE_RGB_YCRCB444)
info->color_formats |= DRM_COLOR_FORMAT_YCRCB444;
}
if (!drm_edid_is_valid(edid)) {
dev_warn(connector->dev->dev, "%s: EDID invalid.\n",
- drm_get_connector_name(connector));
+ connector->name);
return 0;
}
if (quirks & (EDID_QUIRK_PREFER_LARGE_60 | EDID_QUIRK_PREFER_LARGE_75))
edid_fixup_preferred(connector, quirks);
- drm_add_display_info(edid, &connector->display_info);
+ drm_add_display_info(edid, &connector->display_info, connector);
if (quirks & EDID_QUIRK_FORCE_8BPC)
connector->display_info.bpc = 8;
+ if (quirks & EDID_QUIRK_FORCE_12BPC)
+ connector->display_info.bpc = 12;
+
return num_modes;
}
EXPORT_SYMBOL(drm_add_edid_modes);
projects / karo-tx-linux.git / blobdiff