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| author |  Jani Nikula <jani.nikula@intel.com>
| 2024-04-09 12:46:09 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com>
| 2024-04-15 15:42:40 +0300 |
| commit | 3ddbd345539eb89cb1ccceb79ef0a3c150aeebbf (patch) | |
| tree | ceadd27e5b17760b9eea85bbbb3dda0c3cd5637f /include/drm | |
| parent | drm: fix DRM_DISPLAY_DP_HELPER dependencies, part 2 (diff) | |
| download | linux-3ddbd345539eb89cb1ccceb79ef0a3c150aeebbf.tar.gz linux-3ddbd345539eb89cb1ccceb79ef0a3c150aeebbf.tar.bz2 linux-3ddbd345539eb89cb1ccceb79ef0a3c150aeebbf.zip | |
drm/edid: add drm_edid_get_product_id()
Add a struct drm_edid based function to get the vendor and product ID
from an EDID. Add a separate struct for defining this part of the EDID,
with defined byte order for manufacturer name, product code and serial
number.
v2: Define manufacturer_name as __be16 instead of u8[2] (Ville)
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Melissa Wen <mwen@igalia.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/df0e7dedbf7f2c190039d6e6eae3e126eba113c9.1712655867.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_edid.h | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h index 6f65bbf655a1..8bdd8d54815d 100644 --- a/include/drm/drm_edid.h +++ b/include/drm/drm_edid.h @@ -272,14 +272,27 @@ struct detailed_timing { #define DRM_EDID_DSC_MAX_SLICES 0xf #define DRM_EDID_DSC_TOTAL_CHUNK_KBYTES 0x3f +struct drm_edid_product_id { + __be16 manufacturer_name; + __le16 product_code; + __le32 serial_number; + u8 week_of_manufacture; + u8 year_of_manufacture; +} __packed; + struct edid { u8 header[8]; /* Vendor & product info */ - u8 mfg_id[2]; - u8 prod_code[2]; - u32 serial; /* FIXME: byte order */ - u8 mfg_week; - u8 mfg_year; + union { + struct drm_edid_product_id product_id; + struct { + u8 mfg_id[2]; + u8 prod_code[2]; + u32 serial; /* FIXME: byte order */ + u8 mfg_week; + u8 mfg_year; + } __packed; + } __packed; /* EDID version */ u8 version; u8 revision; @@ -466,6 +479,8 @@ int drm_edid_connector_update(struct drm_connector *connector, const struct drm_edid *edid); int drm_edid_connector_add_modes(struct drm_connector *connector); bool drm_edid_is_digital(const struct drm_edid *drm_edid); +void drm_edid_get_product_id(const struct drm_edid *drm_edid, + struct drm_edid_product_id *id); const u8 *drm_find_edid_extension(const struct drm_edid *drm_edid, int ext_id, int *ext_index); |