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drm: Add logging function for DP VSC SDP 

When receiving video it is very useful to be able to log DP VSC SDP.
This greatly simplifies debugging.

v2: Minor style fix
v3: Move logging functions to drm core [Jani N]
v5: Rebased
v10: Rebased

Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200514060732.3378396-4-gwan-gyeong.mun@intel.com
This commit is contained in:
Gwan-gyeong Mun 2020-05-14 09:07:21 +03:00 committed by Jani Nikula
parent 1b404b7dbb
commit 2ba6221cca
2 changed files with 177 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

174
drivers/gpu/drm/drm_dp_helper.c
View File

@ -1629,3 +1629,177 @@ int drm_dp_set_phy_test_pattern(struct drm_dp_aux *aux,
return 0;
}
EXPORT_SYMBOL(drm_dp_set_phy_test_pattern);
static const char *dp_pixelformat_get_name(enum dp_pixelformat pixelformat)
{
if (pixelformat < 0 || pixelformat > DP_PIXELFORMAT_RESERVED)
return "Invalid";
switch (pixelformat) {
case DP_PIXELFORMAT_RGB:
return "RGB";
case DP_PIXELFORMAT_YUV444:
return "YUV444";
case DP_PIXELFORMAT_YUV422:
return "YUV422";
case DP_PIXELFORMAT_YUV420:
return "YUV420";
case DP_PIXELFORMAT_Y_ONLY:
return "Y_ONLY";
case DP_PIXELFORMAT_RAW:
return "RAW";
default:
return "Reserved";
}
}
static const char *dp_colorimetry_get_name(enum dp_pixelformat pixelformat,
enum dp_colorimetry colorimetry)
{
if (pixelformat < 0 || pixelformat > DP_PIXELFORMAT_RESERVED)
return "Invalid";
switch (colorimetry) {
case DP_COLORIMETRY_DEFAULT:
switch (pixelformat) {
case DP_PIXELFORMAT_RGB:
return "sRGB";
case DP_PIXELFORMAT_YUV444:
case DP_PIXELFORMAT_YUV422:
case DP_PIXELFORMAT_YUV420:
return "BT.601";
case DP_PIXELFORMAT_Y_ONLY:
return "DICOM PS3.14";
case DP_PIXELFORMAT_RAW:
return "Custom Color Profile";
default:
return "Reserved";
}
case DP_COLORIMETRY_RGB_WIDE_FIXED: /* and DP_COLORIMETRY_BT709_YCC */
switch (pixelformat) {
case DP_PIXELFORMAT_RGB:
return "Wide Fixed";
case DP_PIXELFORMAT_YUV444:
case DP_PIXELFORMAT_YUV422:
case DP_PIXELFORMAT_YUV420:
return "BT.709";
default:
return "Reserved";
}
case DP_COLORIMETRY_RGB_WIDE_FLOAT: /* and DP_COLORIMETRY_XVYCC_601 */
switch (pixelformat) {
case DP_PIXELFORMAT_RGB:
return "Wide Float";
case DP_PIXELFORMAT_YUV444:
case DP_PIXELFORMAT_YUV422:
case DP_PIXELFORMAT_YUV420:
return "xvYCC 601";
default:
return "Reserved";
}
case DP_COLORIMETRY_OPRGB: /* and DP_COLORIMETRY_XVYCC_709 */
switch (pixelformat) {
case DP_PIXELFORMAT_RGB:
return "OpRGB";
case DP_PIXELFORMAT_YUV444:
case DP_PIXELFORMAT_YUV422:
case DP_PIXELFORMAT_YUV420:
return "xvYCC 709";
default:
return "Reserved";
}
case DP_COLORIMETRY_DCI_P3_RGB: /* and DP_COLORIMETRY_SYCC_601 */
switch (pixelformat) {
case DP_PIXELFORMAT_RGB:
return "DCI-P3";
case DP_PIXELFORMAT_YUV444:
case DP_PIXELFORMAT_YUV422:
case DP_PIXELFORMAT_YUV420:
return "sYCC 601";
default:
return "Reserved";
}
case DP_COLORIMETRY_RGB_CUSTOM: /* and DP_COLORIMETRY_OPYCC_601 */
switch (pixelformat) {
case DP_PIXELFORMAT_RGB:
return "Custom Profile";
case DP_PIXELFORMAT_YUV444:
case DP_PIXELFORMAT_YUV422:
case DP_PIXELFORMAT_YUV420:
return "OpYCC 601";
default:
return "Reserved";
}
case DP_COLORIMETRY_BT2020_RGB: /* and DP_COLORIMETRY_BT2020_CYCC */
switch (pixelformat) {
case DP_PIXELFORMAT_RGB:
return "BT.2020 RGB";
case DP_PIXELFORMAT_YUV444:
case DP_PIXELFORMAT_YUV422:
case DP_PIXELFORMAT_YUV420:
return "BT.2020 CYCC";
default:
return "Reserved";
}
case DP_COLORIMETRY_BT2020_YCC:
switch (pixelformat) {
case DP_PIXELFORMAT_YUV444:
case DP_PIXELFORMAT_YUV422:
case DP_PIXELFORMAT_YUV420:
return "BT.2020 YCC";
default:
return "Reserved";
}
default:
return "Invalid";
}
}
static const char *dp_dynamic_range_get_name(enum dp_dynamic_range dynamic_range)
{
switch (dynamic_range) {
case DP_DYNAMIC_RANGE_VESA:
return "VESA range";
case DP_DYNAMIC_RANGE_CTA:
return "CTA range";
default:
return "Invalid";
}
}
static const char *dp_content_type_get_name(enum dp_content_type content_type)
{
switch (content_type) {
case DP_CONTENT_TYPE_NOT_DEFINED:
return "Not defined";
case DP_CONTENT_TYPE_GRAPHICS:
return "Graphics";
case DP_CONTENT_TYPE_PHOTO:
return "Photo";
case DP_CONTENT_TYPE_VIDEO:
return "Video";
case DP_CONTENT_TYPE_GAME:
return "Game";
default:
return "Reserved";
}
}
void drm_dp_vsc_sdp_log(const char *level, struct device *dev,
const struct drm_dp_vsc_sdp *vsc)
{
#define DP_SDP_LOG(fmt, ...) dev_printk(level, dev, fmt, ##__VA_ARGS__)
DP_SDP_LOG("DP SDP: %s, revision %u, length %u\n", "VSC",
vsc->revision, vsc->length);
DP_SDP_LOG(" pixelformat: %s\n",
dp_pixelformat_get_name(vsc->pixelformat));
DP_SDP_LOG(" colorimetry: %s\n",
dp_colorimetry_get_name(vsc->pixelformat, vsc->colorimetry));
DP_SDP_LOG(" bpc: %u\n", vsc->bpc);
DP_SDP_LOG(" dynamic range: %s\n",
dp_dynamic_range_get_name(vsc->dynamic_range));
DP_SDP_LOG(" content type: %s\n",
dp_content_type_get_name(vsc->content_type));
#undef DP_SDP_LOG
}
EXPORT_SYMBOL(drm_dp_vsc_sdp_log);

3
include/drm/drm_dp_helper.h
View File

@ -1348,6 +1348,9 @@ struct drm_dp_vsc_sdp {
enum dp_content_type content_type;
};
void drm_dp_vsc_sdp_log(const char *level, struct device *dev,
const struct drm_dp_vsc_sdp *vsc);
int drm_dp_psr_setup_time(const u8 psr_cap[EDP_PSR_RECEIVER_CAP_SIZE]);
static inline int