[mirror_ubuntu-bionic-kernel.git] / include / drm / drm_displayid.h

/*
 * 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[0];
};

#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) += (block)->num_bytes + sizeof(struct displayid_block), \
	     (block) = (struct displayid_block *)&(displayid)[idx])

#endif
Commit	Line	Data
b49b55bd DA	1	/*
	2	* Copyright © 2014 Red Hat Inc.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	18	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	19	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	20	* OTHER DEALINGS IN THE SOFTWARE.
	21	*/
	22	#ifndef DRM_DISPLAYID_H
	23	#define DRM_DISPLAYID_H
	24
	25	#define DATA_BLOCK_PRODUCT_ID 0x00
	26	#define DATA_BLOCK_DISPLAY_PARAMETERS 0x01
	27	#define DATA_BLOCK_COLOR_CHARACTERISTICS 0x02
	28	#define DATA_BLOCK_TYPE_1_DETAILED_TIMING 0x03
	29	#define DATA_BLOCK_TYPE_2_DETAILED_TIMING 0x04
	30	#define DATA_BLOCK_TYPE_3_SHORT_TIMING 0x05
	31	#define DATA_BLOCK_TYPE_4_DMT_TIMING 0x06
	32	#define DATA_BLOCK_VESA_TIMING 0x07
	33	#define DATA_BLOCK_CEA_TIMING 0x08
	34	#define DATA_BLOCK_VIDEO_TIMING_RANGE 0x09
	35	#define DATA_BLOCK_PRODUCT_SERIAL_NUMBER 0x0a
	36	#define DATA_BLOCK_GP_ASCII_STRING 0x0b
	37	#define DATA_BLOCK_DISPLAY_DEVICE_DATA 0x0c
	38	#define DATA_BLOCK_INTERFACE_POWER_SEQUENCING 0x0d
	39	#define DATA_BLOCK_TRANSFER_CHARACTERISTICS 0x0e
	40	#define DATA_BLOCK_DISPLAY_INTERFACE 0x0f
	41	#define DATA_BLOCK_STEREO_DISPLAY_INTERFACE 0x10
	42	#define DATA_BLOCK_TILED_DISPLAY 0x12
31201623	43	#define DATA_BLOCK_CTA 0x81
b49b55bd DA	44
	45	#define DATA_BLOCK_VENDOR_SPECIFIC 0x7f
	46
	47	#define PRODUCT_TYPE_EXTENSION 0
	48	#define PRODUCT_TYPE_TEST 1
	49	#define PRODUCT_TYPE_PANEL 2
	50	#define PRODUCT_TYPE_MONITOR 3
	51	#define PRODUCT_TYPE_TV 4
	52	#define PRODUCT_TYPE_REPEATER 5
	53	#define PRODUCT_TYPE_DIRECT_DRIVE 6
	54
	55	struct displayid_hdr {
	56	u8 rev;
	57	u8 bytes;
	58	u8 prod_id;
	59	u8 ext_count;
	60	} __packed;
	61
	62	struct displayid_block {
	63	u8 tag;
	64	u8 rev;
	65	u8 num_bytes;
	66	} __packed;
	67
	68	struct displayid_tiled_block {
	69	struct displayid_block base;
	70	u8 tile_cap;
	71	u8 topo[3];
	72	u8 tile_size[4];
	73	u8 tile_pixel_bezel[5];
	74	u8 topology_id[8];
	75	} __packed;
	76
a39ed680 DA	77	struct displayid_detailed_timings_1 {
	78	u8 pixel_clock[3];
	79	u8 flags;
	80	u8 hactive[2];
	81	u8 hblank[2];
	82	u8 hsync[2];
	83	u8 hsw[2];
	84	u8 vactive[2];
	85	u8 vblank[2];
	86	u8 vsync[2];
	87	u8 vsw[2];
	88	} __packed;
	89
	90	struct displayid_detailed_timing_block {
	91	struct displayid_block base;
	92	struct displayid_detailed_timings_1 timings[0];
	93	};
31201623 AR	94
	95	#define for_each_displayid_db(displayid, block, idx, length) \
	96	for ((block) = (struct displayid_block *)&(displayid)[idx]; \
	97	(idx) + sizeof(struct displayid_block) <= (length) && \
	98	(idx) + sizeof(struct displayid_block) + (block)->num_bytes <= (length) && \
	99	(block)->num_bytes > 0; \
	100	(idx) += (block)->num_bytes + sizeof(struct displayid_block), \
	101	(block) = (struct displayid_block *)&(displayid)[idx])
	102
b49b55bd	103	#endif