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author | Gwan-gyeong Mun <gwan-gyeong.mun@intel.com> | 2020-05-14 09:07:21 +0300 |
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committer | Jani Nikula <jani.nikula@intel.com> | 2020-05-14 13:53:39 +0300 |
commit | 2ba6221cca7e25bd05a416b0e64afb6a5b28dc9b (patch) | |
tree | 70c3b02898556c40076ca9eaa70c2201ddb51b57 /drivers/gpu/drm/drm_dp_helper.c | |
parent | 1b404b7dbb100cd5d94b95bf86d8d92c31108b49 (diff) | |
download | linux-2ba6221cca7e25bd05a416b0e64afb6a5b28dc9b.tar.xz |
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
Diffstat (limited to 'drivers/gpu/drm/drm_dp_helper.c')
-rw-r--r-- | drivers/gpu/drm/drm_dp_helper.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c index 612a59ec8116..43e57632b00a 100644 --- a/drivers/gpu/drm/drm_dp_helper.c +++ b/drivers/gpu/drm/drm_dp_helper.c @@ -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); |