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drm/edid: Add display_info.rgb_quant_range_selectable

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Move the CEA-861 QS bit handling entirely into the edid code. No
need to bother the drivers with this.

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com>
Cc: amd-gfx@lists.freedesktop.org
Cc: Eric Anholt <eric@anholt.net> (supporter:DRM DRIVERS FOR VC4)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20190108172828.15184-4-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2019-01-08 19:28:28 +02:00
parent 8ee491b4d2
commit 1581b2df4c
9 changed files with 43 additions and 68 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

70
drivers/gpu/drm/drm_edid.c
View File

@ -3641,6 +3641,20 @@ static bool cea_db_is_hdmi_forum_vsdb(const u8 *db)
return oui == HDMI_FORUM_IEEE_OUI;
}
static bool cea_db_is_vcdb(const u8 *db)
{
if (cea_db_tag(db) != USE_EXTENDED_TAG)
return false;
if (cea_db_payload_len(db) != 2)
return false;
if (cea_db_extended_tag(db) != EXT_VIDEO_CAPABILITY_BLOCK)
return false;
return true;
}
static bool cea_db_is_y420cmdb(const u8 *db)
{
if (cea_db_tag(db) != USE_EXTENDED_TAG)
@ -4223,41 +4237,6 @@ end:
}
EXPORT_SYMBOL(drm_detect_monitor_audio);
/**
* drm_rgb_quant_range_selectable - is RGB quantization range selectable?
* @edid: EDID block to scan
*
* Check whether the monitor reports the RGB quantization range selection
* as supported. The AVI infoframe can then be used to inform the monitor
* which quantization range (full or limited) is used.
*
* Return: True if the RGB quantization range is selectable, false otherwise.
*/
bool drm_rgb_quant_range_selectable(struct edid *edid)
{
u8 *edid_ext;
int i, start, end;
edid_ext = drm_find_cea_extension(edid);
if (!edid_ext)
return false;
if (cea_db_offsets(edid_ext, &start, &end))
return false;
for_each_cea_db(edid_ext, i, start, end) {
if (cea_db_tag(&edid_ext[i]) == USE_EXTENDED_TAG &&
cea_db_payload_len(&edid_ext[i]) == 2 &&
cea_db_extended_tag(&edid_ext[i]) ==
EXT_VIDEO_CAPABILITY_BLOCK) {
DRM_DEBUG_KMS("CEA VCDB 0x%02x\n", edid_ext[i + 2]);
return edid_ext[i + 2] & EDID_CEA_VCDB_QS;
}
}
return false;
}
EXPORT_SYMBOL(drm_rgb_quant_range_selectable);
/**
* drm_default_rgb_quant_range - default RGB quantization range
@ -4278,6 +4257,16 @@ drm_default_rgb_quant_range(const struct drm_display_mode *mode)
}
EXPORT_SYMBOL(drm_default_rgb_quant_range);
static void drm_parse_vcdb(struct drm_connector *connector, const u8 *db)
{
struct drm_display_info *info = &connector->display_info;
DRM_DEBUG_KMS("CEA VCDB 0x%02x\n", db[2]);
if (db[2] & EDID_CEA_VCDB_QS)
info->rgb_quant_range_selectable = true;
}
static void drm_parse_ycbcr420_deep_color_info(struct drm_connector *connector,
const u8 *db)
{
@ -4452,6 +4441,8 @@ static void drm_parse_cea_ext(struct drm_connector *connector,
drm_parse_hdmi_forum_vsdb(connector, db);
if (cea_db_is_y420cmdb(db))
drm_parse_y420cmdb_bitmap(connector, db);
if (cea_db_is_vcdb(db))
drm_parse_vcdb(connector, db);
}
}
@ -4472,6 +4463,7 @@ drm_reset_display_info(struct drm_connector *connector)
info->max_tmds_clock = 0;
info->dvi_dual = false;
info->has_hdmi_infoframe = false;
info->rgb_quant_range_selectable = false;
memset(&info->hdmi, 0, sizeof(info->hdmi));
info->non_desktop = 0;
@ -4939,15 +4931,15 @@ EXPORT_SYMBOL(drm_hdmi_avi_infoframe_from_display_mode);
* @connector: the connector
* @mode: DRM display mode
* @rgb_quant_range: RGB quantization range (Q)
* @rgb_quant_range_selectable: Sink support selectable RGB quantization range (QS)
*/
void
drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame,
struct drm_connector *connector,
const struct drm_display_mode *mode,
enum hdmi_quantization_range rgb_quant_range,
bool rgb_quant_range_selectable)
enum hdmi_quantization_range rgb_quant_range)
{
const struct drm_display_info *info = &connector->display_info;
/*
* CEA-861:
* "A Source shall not send a non-zero Q value that does not correspond
@ -4958,7 +4950,7 @@ drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame,
* HDMI 2.0 recommends sending non-zero Q when it does match the
* default RGB quantization range for the mode, even when QS=0.
*/
if (rgb_quant_range_selectable ||
if (info->rgb_quant_range_selectable ||
rgb_quant_range == drm_default_rgb_quant_range(mode))
frame->quantization_range = rgb_quant_range;
else

1
drivers/gpu/drm/i915/intel_drv.h
View File

@ -1057,7 +1057,6 @@ struct intel_hdmi {
} dp_dual_mode;
bool has_hdmi_sink;
bool has_audio;
bool rgb_quant_range_selectable;
struct intel_connector *attached_connector;
struct cec_notifier *cec_notifier;
};

8
drivers/gpu/drm/i915/intel_hdmi.c
View File

@ -462,7 +462,6 @@ static void intel_hdmi_set_avi_infoframe(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state)
{
struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(&encoder->base);
const struct drm_display_mode *adjusted_mode =
&crtc_state->base.adjusted_mode;
union hdmi_infoframe frame;
@ -488,8 +487,7 @@ static void intel_hdmi_set_avi_infoframe(struct intel_encoder *encoder,
adjusted_mode,
crtc_state->limited_color_range ?
HDMI_QUANTIZATION_RANGE_LIMITED :
HDMI_QUANTIZATION_RANGE_FULL,
intel_hdmi->rgb_quant_range_selectable);
HDMI_QUANTIZATION_RANGE_FULL);
drm_hdmi_avi_infoframe_content_type(&frame.avi,
conn_state);
@ -1816,7 +1814,6 @@ intel_hdmi_unset_edid(struct drm_connector *connector)
intel_hdmi->has_hdmi_sink = false;
intel_hdmi->has_audio = false;
intel_hdmi->rgb_quant_range_selectable = false;
intel_hdmi->dp_dual_mode.type = DRM_DP_DUAL_MODE_NONE;
intel_hdmi->dp_dual_mode.max_tmds_clock = 0;
@ -1900,9 +1897,6 @@ intel_hdmi_set_edid(struct drm_connector *connector)
to_intel_connector(connector)->detect_edid = edid;
if (edid && edid->input & DRM_EDID_INPUT_DIGITAL) {
intel_hdmi->rgb_quant_range_selectable =
drm_rgb_quant_range_selectable(edid);
intel_hdmi->has_audio = drm_detect_monitor_audio(edid);
intel_hdmi->has_hdmi_sink = drm_detect_hdmi_monitor(edid);

3
drivers/gpu/drm/i915/intel_lspcon.c
View File

@ -492,8 +492,7 @@ void lspcon_set_infoframes(struct intel_encoder *encoder,
adjusted_mode,
crtc_state->limited_color_range ?
HDMI_QUANTIZATION_RANGE_LIMITED :
HDMI_QUANTIZATION_RANGE_FULL,
false);
HDMI_QUANTIZATION_RANGE_FULL);
ret = hdmi_infoframe_pack(&frame, buf, sizeof(buf));
if (ret < 0) {

7
drivers/gpu/drm/i915/intel_sdvo.c
View File

@ -103,7 +103,6 @@ struct intel_sdvo {
bool has_hdmi_monitor;
bool has_hdmi_audio;
bool rgb_quant_range_selectable;
/* DDC bus used by this SDVO encoder */
uint8_t ddc_bus;
@ -1004,8 +1003,7 @@ static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo,
adjusted_mode,
pipe_config->limited_color_range ?
HDMI_QUANTIZATION_RANGE_LIMITED :
HDMI_QUANTIZATION_RANGE_FULL,
intel_sdvo->rgb_quant_range_selectable);
HDMI_QUANTIZATION_RANGE_FULL);
len = hdmi_infoframe_pack(&frame, sdvo_data, sizeof(sdvo_data));
if (len < 0)
@ -1805,8 +1803,6 @@ intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
if (intel_sdvo_connector->is_hdmi) {
intel_sdvo->has_hdmi_monitor = drm_detect_hdmi_monitor(edid);
intel_sdvo->has_hdmi_audio = drm_detect_monitor_audio(edid);
intel_sdvo->rgb_quant_range_selectable =
drm_rgb_quant_range_selectable(edid);
}
} else
status = connector_status_disconnected;
@ -1855,7 +1851,6 @@ intel_sdvo_detect(struct drm_connector *connector, bool force)
intel_sdvo->has_hdmi_monitor = false;
intel_sdvo->has_hdmi_audio = false;
intel_sdvo->rgb_quant_range_selectable = false;
if ((intel_sdvo_connector->output_flag & response) == 0)
ret = connector_status_disconnected;

3
drivers/gpu/drm/radeon/radeon_audio.c
View File

@ -526,8 +526,7 @@ static int radeon_audio_set_avi_packet(struct drm_encoder *encoder,
drm_hdmi_avi_infoframe_quant_range(&frame, connector, mode,
radeon_encoder->output_csc == RADEON_OUTPUT_CSC_TVRGB ?
HDMI_QUANTIZATION_RANGE_LIMITED :
HDMI_QUANTIZATION_RANGE_FULL,
drm_rgb_quant_range_selectable(radeon_connector_edid(connector)));
HDMI_QUANTIZATION_RANGE_FULL);
}
err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer));

9
drivers/gpu/drm/vc4/vc4_hdmi.c
View File

@ -109,7 +109,6 @@ struct vc4_hdmi_encoder {
struct vc4_encoder base;
bool hdmi_monitor;
bool limited_rgb_range;
bool rgb_range_selectable;
};
static inline struct vc4_hdmi_encoder *
@ -280,11 +279,6 @@ static int vc4_hdmi_connector_get_modes(struct drm_connector *connector)
vc4_encoder->hdmi_monitor = drm_detect_hdmi_monitor(edid);
if (edid && edid->input & DRM_EDID_INPUT_DIGITAL) {
vc4_encoder->rgb_range_selectable =
drm_rgb_quant_range_selectable(edid);
}
drm_connector_update_edid_property(connector, edid);
ret = drm_add_edid_modes(connector, edid);
kfree(edid);
@ -435,8 +429,7 @@ static void vc4_hdmi_set_avi_infoframe(struct drm_encoder *encoder)
hdmi->connector, mode,
vc4_encoder->limited_rgb_range ?
HDMI_QUANTIZATION_RANGE_LIMITED :
HDMI_QUANTIZATION_RANGE_FULL,
vc4_encoder->rgb_range_selectable);
HDMI_QUANTIZATION_RANGE_FULL);
frame.avi.right_bar = cstate->tv.margins.right;
frame.avi.left_bar = cstate->tv.margins.left;

6
include/drm/drm_connector.h
View File

@ -365,6 +365,12 @@ struct drm_display_info {
*/
bool has_hdmi_infoframe;
/**
* @rgb_quant_range_selectable: Does the sink support selecting
* the RGB quantization range?
*/
bool rgb_quant_range_selectable;
/**
* @edid_hdmi_dc_modes: Mask of supported hdmi deep color modes. Even
* more stuff redundant with @bus_formats.

4
include/drm/drm_edid.h
View File

@ -362,8 +362,7 @@ void
drm_hdmi_avi_infoframe_quant_range(struct hdmi_avi_infoframe *frame,
struct drm_connector *connector,
const struct drm_display_mode *mode,
enum hdmi_quantization_range rgb_quant_range,
bool rgb_quant_range_selectable);
enum hdmi_quantization_range rgb_quant_range);
/**
* drm_eld_mnl - Get ELD monitor name length in bytes.
@ -471,7 +470,6 @@ u8 drm_match_cea_mode(const struct drm_display_mode *to_match);
enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code);
bool drm_detect_hdmi_monitor(struct edid *edid);
bool drm_detect_monitor_audio(struct edid *edid);
bool drm_rgb_quant_range_selectable(struct edid *edid);
enum hdmi_quantization_range
drm_default_rgb_quant_range(const struct drm_display_mode *mode);
int drm_add_modes_noedid(struct drm_connector *connector,