On Mon, 20 Oct 2014, Dave Airlie airlied@gmail.com wrote:
From: Dave Airlie airlied@redhat.com
These are just taken from the DisplayID v1.3 spec, and the DDC spec.
Signed-off-by: Dave Airlie airlied@redhat.com
include/drm/drm_displayid.h | 76 +++++++++++++++++++++++++++++++++++++++++++++ include/drm/drm_edid.h | 2 ++ 2 files changed, 78 insertions(+) create mode 100644 include/drm/drm_displayid.h
diff --git a/include/drm/drm_displayid.h b/include/drm/drm_displayid.h new file mode 100644 index 0000000..1901003 --- /dev/null +++ b/include/drm/drm_displayid.h @@ -0,0 +1,76 @@ +/*
- 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_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;
+} __attribute__((packed));
__packed is preferred now I think.
BR, Jani.
+struct displayid_block {
- u8 tag;
- u8 rev;
- u8 num_bytes;
+};
+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];
+} __attribute__((packed));
+#endif diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h index b96031d..3e87f5a 100644 --- a/include/drm/drm_edid.h +++ b/include/drm/drm_edid.h @@ -27,12 +27,14 @@
#define EDID_LENGTH 128 #define DDC_ADDR 0x50 +#define DDC_ADDR2 0x52 /* E-DDC 1.2 - where DisplayID can hide */
#define CEA_EXT 0x02 #define VTB_EXT 0x10 #define DI_EXT 0x40 #define LS_EXT 0x50 #define MI_EXT 0x60 +#define DISPLAYID_EXT 0x70
struct est_timings { u8 t1; -- 2.1.0
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