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-rw-r--r--include/drm/drm_displayid.h103
1 files changed, 103 insertions, 0 deletions
diff --git a/include/drm/drm_displayid.h b/include/drm/drm_displayid.h
new file mode 100644
index 000000000..77941efb5
--- /dev/null
+++ b/include/drm/drm_displayid.h
@@ -0,0 +1,103 @@
+/*
+ * 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
+
+#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_CTA 0x81
+
+#define DATA_BLOCK_VENDOR_SPECIFIC 0x7f
+
+#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
+
+struct displayid_hdr {
+ 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 for_each_displayid_db(displayid, block, idx, length) \
+ for ((block) = (struct displayid_block *)&(displayid)[idx]; \
+ (idx) + sizeof(struct displayid_block) <= (length) && \
+ (idx) + sizeof(struct displayid_block) + (block)->num_bytes <= (length) && \
+ (block)->num_bytes > 0; \
+ (idx) += sizeof(struct displayid_block) + (block)->num_bytes, \
+ (block) = (struct displayid_block *)&(displayid)[idx])
+
+#endif