summaryrefslogtreecommitdiffstats
path: root/include/drm/drm_displayid.h
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /include/drm/drm_displayid.h
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/drm/drm_displayid.h')
-rw-r--r--include/drm/drm_displayid.h170
1 files changed, 170 insertions, 0 deletions
diff --git a/include/drm/drm_displayid.h b/include/drm/drm_displayid.h
new file mode 100644
index 0000000000..566497eeb3
--- /dev/null
+++ b/include/drm/drm_displayid.h
@@ -0,0 +1,170 @@
+/*
+ * Copyright © 2014 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef DRM_DISPLAYID_H
+#define DRM_DISPLAYID_H
+
+#include <linux/types.h>
+#include <linux/bits.h>
+
+struct drm_edid;
+
+#define VESA_IEEE_OUI 0x3a0292
+
+/* DisplayID Structure versions */
+#define DISPLAY_ID_STRUCTURE_VER_12 0x12
+#define DISPLAY_ID_STRUCTURE_VER_20 0x20
+
+/* DisplayID Structure v1r2 Data Blocks */
+#define DATA_BLOCK_PRODUCT_ID 0x00
+#define DATA_BLOCK_DISPLAY_PARAMETERS 0x01
+#define DATA_BLOCK_COLOR_CHARACTERISTICS 0x02
+#define DATA_BLOCK_TYPE_1_DETAILED_TIMING 0x03
+#define DATA_BLOCK_TYPE_2_DETAILED_TIMING 0x04
+#define DATA_BLOCK_TYPE_3_SHORT_TIMING 0x05
+#define DATA_BLOCK_TYPE_4_DMT_TIMING 0x06
+#define DATA_BLOCK_VESA_TIMING 0x07
+#define DATA_BLOCK_CEA_TIMING 0x08
+#define DATA_BLOCK_VIDEO_TIMING_RANGE 0x09
+#define DATA_BLOCK_PRODUCT_SERIAL_NUMBER 0x0a
+#define DATA_BLOCK_GP_ASCII_STRING 0x0b
+#define DATA_BLOCK_DISPLAY_DEVICE_DATA 0x0c
+#define DATA_BLOCK_INTERFACE_POWER_SEQUENCING 0x0d
+#define DATA_BLOCK_TRANSFER_CHARACTERISTICS 0x0e
+#define DATA_BLOCK_DISPLAY_INTERFACE 0x0f
+#define DATA_BLOCK_STEREO_DISPLAY_INTERFACE 0x10
+#define DATA_BLOCK_TILED_DISPLAY 0x12
+#define DATA_BLOCK_VENDOR_SPECIFIC 0x7f
+#define DATA_BLOCK_CTA 0x81
+
+/* DisplayID Structure v2r0 Data Blocks */
+#define DATA_BLOCK_2_PRODUCT_ID 0x20
+#define DATA_BLOCK_2_DISPLAY_PARAMETERS 0x21
+#define DATA_BLOCK_2_TYPE_7_DETAILED_TIMING 0x22
+#define DATA_BLOCK_2_TYPE_8_ENUMERATED_TIMING 0x23
+#define DATA_BLOCK_2_TYPE_9_FORMULA_TIMING 0x24
+#define DATA_BLOCK_2_DYNAMIC_VIDEO_TIMING 0x25
+#define DATA_BLOCK_2_DISPLAY_INTERFACE_FEATURES 0x26
+#define DATA_BLOCK_2_STEREO_DISPLAY_INTERFACE 0x27
+#define DATA_BLOCK_2_TILED_DISPLAY_TOPOLOGY 0x28
+#define DATA_BLOCK_2_CONTAINER_ID 0x29
+#define DATA_BLOCK_2_VENDOR_SPECIFIC 0x7e
+#define DATA_BLOCK_2_CTA_DISPLAY_ID 0x81
+
+/* DisplayID Structure v1r2 Product Type */
+#define PRODUCT_TYPE_EXTENSION 0
+#define PRODUCT_TYPE_TEST 1
+#define PRODUCT_TYPE_PANEL 2
+#define PRODUCT_TYPE_MONITOR 3
+#define PRODUCT_TYPE_TV 4
+#define PRODUCT_TYPE_REPEATER 5
+#define PRODUCT_TYPE_DIRECT_DRIVE 6
+
+/* DisplayID Structure v2r0 Display Product Primary Use Case (~Product Type) */
+#define PRIMARY_USE_EXTENSION 0
+#define PRIMARY_USE_TEST 1
+#define PRIMARY_USE_GENERIC 2
+#define PRIMARY_USE_TV 3
+#define PRIMARY_USE_DESKTOP_PRODUCTIVITY 4
+#define PRIMARY_USE_DESKTOP_GAMING 5
+#define PRIMARY_USE_PRESENTATION 6
+#define PRIMARY_USE_HEAD_MOUNTED_VR 7
+#define PRIMARY_USE_HEAD_MOUNTED_AR 8
+
+struct displayid_header {
+ u8 rev;
+ u8 bytes;
+ u8 prod_id;
+ u8 ext_count;
+} __packed;
+
+struct displayid_block {
+ u8 tag;
+ u8 rev;
+ u8 num_bytes;
+} __packed;
+
+struct displayid_tiled_block {
+ struct displayid_block base;
+ u8 tile_cap;
+ u8 topo[3];
+ u8 tile_size[4];
+ u8 tile_pixel_bezel[5];
+ u8 topology_id[8];
+} __packed;
+
+struct displayid_detailed_timings_1 {
+ u8 pixel_clock[3];
+ u8 flags;
+ u8 hactive[2];
+ u8 hblank[2];
+ u8 hsync[2];
+ u8 hsw[2];
+ u8 vactive[2];
+ u8 vblank[2];
+ u8 vsync[2];
+ u8 vsw[2];
+} __packed;
+
+struct displayid_detailed_timing_block {
+ struct displayid_block base;
+ struct displayid_detailed_timings_1 timings[];
+};
+
+#define DISPLAYID_VESA_MSO_OVERLAP GENMASK(3, 0)
+#define DISPLAYID_VESA_MSO_MODE GENMASK(6, 5)
+
+struct displayid_vesa_vendor_specific_block {
+ struct displayid_block base;
+ u8 oui[3];
+ u8 data_structure_type;
+ u8 mso;
+} __packed;
+
+/*
+ * DisplayID iteration.
+ *
+ * Do not access directly, this is private.
+ */
+struct displayid_iter {
+ const struct drm_edid *drm_edid;
+
+ const u8 *section;
+ int length;
+ int idx;
+ int ext_index;
+
+ u8 version;
+ u8 primary_use;
+};
+
+void displayid_iter_edid_begin(const struct drm_edid *drm_edid,
+ struct displayid_iter *iter);
+const struct displayid_block *
+__displayid_iter_next(struct displayid_iter *iter);
+#define displayid_iter_for_each(__block, __iter) \
+ while (((__block) = __displayid_iter_next(__iter)))
+void displayid_iter_end(struct displayid_iter *iter);
+
+u8 displayid_version(const struct displayid_iter *iter);
+u8 displayid_primary_use(const struct displayid_iter *iter);
+
+#endif