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Commit 9d72b7e2 authored by Jani Nikula's avatar Jani Nikula
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drm/edid: clean up CTA data block tag definitions 

Add prefixed names, group, sort, add references.

v2:
- Updated references to CTA-861-H
- s/CEA/CTA/ in data block macros

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/c66cc3adeb375f5e60d1a8f91b41580d8ab67442.1651569697.git.jani.nikula@intel.com
parent d8cb49d2
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Showing with 35 additions and 30 deletions
drivers/gpu/drm/drm_edid.c
View file @ 9d72b7e2
......@@ -3462,16 +3462,21 @@ add_detailed_modes(struct drm_connector *connector, const struct edid *edid,
return closure.modes;
}
#define AUDIO_BLOCK 0x01
#define VIDEO_BLOCK 0x02
#define VENDOR_BLOCK 0x03
#define SPEAKER_BLOCK 0x04
#define HDR_STATIC_METADATA_BLOCK 0x6
#define USE_EXTENDED_TAG 0x07
#define EXT_VIDEO_CAPABILITY_BLOCK 0x00
#define EXT_VIDEO_DATA_BLOCK_420 0x0E
#define EXT_VIDEO_CAP_BLOCK_Y420CMDB 0x0F
#define EXT_VIDEO_HF_SCDB_DATA_BLOCK 0x79
/* CTA-861-H Table 60 - CTA Tag Codes */
#define CTA_DB_AUDIO 1
#define CTA_DB_VIDEO 2
#define CTA_DB_VENDOR 3
#define CTA_DB_SPEAKER 4
#define CTA_DB_EXTENDED_TAG 7
/* CTA-861-H Table 62 - CTA Extended Tag Codes */
#define CTA_EXT_DB_VIDEO_CAP 0
#define CTA_EXT_DB_VENDOR 1
#define CTA_EXT_DB_HDR_STATIC_METADATA 6
#define CTA_EXT_DB_420_VIDEO_DATA 14
#define CTA_EXT_DB_420_VIDEO_CAP_MAP 15
#define CTA_EXT_DB_HF_SCDB 0x79
#define EDID_BASIC_AUDIO (1 << 6)
#define EDID_CEA_YCRCB444 (1 << 5)
#define EDID_CEA_YCRCB422 (1 << 4)
......@@ -4358,7 +4363,7 @@ cea_db_offsets(const u8 *cea, int *start, int *end)
static bool cea_db_is_hdmi_vsdb(const u8 *db)
{
if (cea_db_tag(db) != VENDOR_BLOCK)
if (cea_db_tag(db) != CTA_DB_VENDOR)
return false;
if (cea_db_payload_len(db) < 5)
......@@ -4369,7 +4374,7 @@ static bool cea_db_is_hdmi_vsdb(const u8 *db)
static bool cea_db_is_hdmi_forum_vsdb(const u8 *db)
{
if (cea_db_tag(db) != VENDOR_BLOCK)
if (cea_db_tag(db) != CTA_DB_VENDOR)
return false;
if (cea_db_payload_len(db) < 7)
......@@ -4380,7 +4385,7 @@ static bool cea_db_is_hdmi_forum_vsdb(const u8 *db)
static bool cea_db_is_microsoft_vsdb(const u8 *db)
{
if (cea_db_tag(db) != VENDOR_BLOCK)
if (cea_db_tag(db) != CTA_DB_VENDOR)
return false;
if (cea_db_payload_len(db) != 21)
......@@ -4391,13 +4396,13 @@ static bool cea_db_is_microsoft_vsdb(const u8 *db)
static bool cea_db_is_vcdb(const u8 *db)
{
if (cea_db_tag(db) != USE_EXTENDED_TAG)
if (cea_db_tag(db) != CTA_DB_EXTENDED_TAG)
return false;
if (cea_db_payload_len(db) != 2)
return false;
if (cea_db_extended_tag(db) != EXT_VIDEO_CAPABILITY_BLOCK)
if (cea_db_extended_tag(db) != CTA_EXT_DB_VIDEO_CAP)
return false;
return true;
......@@ -4405,13 +4410,13 @@ static bool cea_db_is_vcdb(const u8 *db)
static bool cea_db_is_hdmi_forum_scdb(const u8 *db)
{
if (cea_db_tag(db) != USE_EXTENDED_TAG)
if (cea_db_tag(db) != CTA_DB_EXTENDED_TAG)
return false;
if (cea_db_payload_len(db) < 7)
return false;
if (cea_db_extended_tag(db) != EXT_VIDEO_HF_SCDB_DATA_BLOCK)
if (cea_db_extended_tag(db) != CTA_EXT_DB_HF_SCDB)
return false;
return true;
......@@ -4419,13 +4424,13 @@ static bool cea_db_is_hdmi_forum_scdb(const u8 *db)
static bool cea_db_is_y420cmdb(const u8 *db)
{
if (cea_db_tag(db) != USE_EXTENDED_TAG)
if (cea_db_tag(db) != CTA_DB_EXTENDED_TAG)
return false;
if (!cea_db_payload_len(db))
return false;
if (cea_db_extended_tag(db) != EXT_VIDEO_CAP_BLOCK_Y420CMDB)
if (cea_db_extended_tag(db) != CTA_EXT_DB_420_VIDEO_CAP_MAP)
return false;
return true;
......@@ -4433,13 +4438,13 @@ static bool cea_db_is_y420cmdb(const u8 *db)
static bool cea_db_is_y420vdb(const u8 *db)
{
if (cea_db_tag(db) != USE_EXTENDED_TAG)
if (cea_db_tag(db) != CTA_DB_EXTENDED_TAG)
return false;
if (!cea_db_payload_len(db))
return false;
if (cea_db_extended_tag(db) != EXT_VIDEO_DATA_BLOCK_420)
if (cea_db_extended_tag(db) != CTA_EXT_DB_420_VIDEO_DATA)
return false;
return true;
......@@ -4506,7 +4511,7 @@ add_cea_modes(struct drm_connector *connector, const struct edid *edid)
db = &cea[i];
dbl = cea_db_payload_len(db);
if (cea_db_tag(db) == VIDEO_BLOCK) {
if (cea_db_tag(db) == CTA_DB_VIDEO) {
video = db + 1;
video_len = dbl;
modes += do_cea_modes(connector, video, dbl);
......@@ -4580,10 +4585,10 @@ static void fixup_detailed_cea_mode_clock(struct drm_display_mode *mode)
static bool cea_db_is_hdmi_hdr_metadata_block(const u8 *db)
{
if (cea_db_tag(db) != USE_EXTENDED_TAG)
if (cea_db_tag(db) != CTA_DB_EXTENDED_TAG)
return false;
if (db[1] != HDR_STATIC_METADATA_BLOCK)
if (db[1] != CTA_EXT_DB_HDR_STATIC_METADATA)
return false;
if (cea_db_payload_len(db) < 3)
......@@ -4777,7 +4782,7 @@ static void drm_edid_to_eld(struct drm_connector *connector,
dbl = cea_db_payload_len(db);
switch (cea_db_tag(db)) {
case AUDIO_BLOCK:
case CTA_DB_AUDIO:
/* Audio Data Block, contains SADs */
sad_count = min(dbl / 3, 15 - total_sad_count);
if (sad_count >= 1)
......@@ -4785,12 +4790,12 @@ static void drm_edid_to_eld(struct drm_connector *connector,
&db[1], sad_count * 3);
total_sad_count += sad_count;
break;
case SPEAKER_BLOCK:
case CTA_DB_SPEAKER:
/* Speaker Allocation Data Block */
if (dbl >= 1)
eld[DRM_ELD_SPEAKER] = db[1];
break;
case VENDOR_BLOCK:
case CTA_DB_VENDOR:
/* HDMI Vendor-Specific Data Block */
if (cea_db_is_hdmi_vsdb(db))
drm_parse_hdmi_vsdb_audio(connector, db);
......@@ -4851,7 +4856,7 @@ int drm_edid_to_sad(const struct edid *edid, struct cea_sad **sads)
for_each_cea_db(cea, i, start, end) {
const u8 *db = &cea[i];
if (cea_db_tag(db) == AUDIO_BLOCK) {
if (cea_db_tag(db) == CTA_DB_AUDIO) {
int j;
dbl = cea_db_payload_len(db);
......@@ -4913,7 +4918,7 @@ int drm_edid_to_speaker_allocation(const struct edid *edid, u8 **sadb)
for_each_cea_db(cea, i, start, end) {
const u8 *db = &cea[i];
if (cea_db_tag(db) == SPEAKER_BLOCK) {
if (cea_db_tag(db) == CTA_DB_SPEAKER) {
dbl = cea_db_payload_len(db);
/* Speaker Allocation Data Block */
......@@ -5044,7 +5049,7 @@ bool drm_detect_monitor_audio(const struct edid *edid)
goto end;
for_each_cea_db(edid_ext, i, start_offset, end_offset) {
if (cea_db_tag(&edid_ext[i]) == AUDIO_BLOCK) {
if (cea_db_tag(&edid_ext[i]) == CTA_DB_AUDIO) {
has_audio = true;
for (j = 1; j < cea_db_payload_len(&edid_ext[i]) + 1; j += 3)
DRM_DEBUG_KMS("CEA audio format %d\n",
......
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