264 lines
7.7 KiB
C
264 lines
7.7 KiB
C
/*
|
|
* Copyright © 2007-2008 Intel Corporation
|
|
* Jesse Barnes <jesse.barnes@intel.com>
|
|
*
|
|
* 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_EDID_H__
|
|
#define __DRM_EDID_H__
|
|
|
|
#include <linux/types.h>
|
|
|
|
#define EDID_LENGTH 128
|
|
#define DDC_ADDR 0x50
|
|
|
|
#define CEA_EXT 0x02
|
|
#define VTB_EXT 0x10
|
|
#define DI_EXT 0x40
|
|
#define LS_EXT 0x50
|
|
#define MI_EXT 0x60
|
|
|
|
struct est_timings {
|
|
u8 t1;
|
|
u8 t2;
|
|
u8 mfg_rsvd;
|
|
} __attribute__((packed));
|
|
|
|
/* 00=16:10, 01=4:3, 10=5:4, 11=16:9 */
|
|
#define EDID_TIMING_ASPECT_SHIFT 6
|
|
#define EDID_TIMING_ASPECT_MASK (0x3 << EDID_TIMING_ASPECT_SHIFT)
|
|
|
|
/* need to add 60 */
|
|
#define EDID_TIMING_VFREQ_SHIFT 0
|
|
#define EDID_TIMING_VFREQ_MASK (0x3f << EDID_TIMING_VFREQ_SHIFT)
|
|
|
|
struct std_timing {
|
|
u8 hsize; /* need to multiply by 8 then add 248 */
|
|
u8 vfreq_aspect;
|
|
} __attribute__((packed));
|
|
|
|
#define DRM_EDID_PT_HSYNC_POSITIVE (1 << 1)
|
|
#define DRM_EDID_PT_VSYNC_POSITIVE (1 << 2)
|
|
#define DRM_EDID_PT_SEPARATE_SYNC (3 << 3)
|
|
#define DRM_EDID_PT_STEREO (1 << 5)
|
|
#define DRM_EDID_PT_INTERLACED (1 << 7)
|
|
|
|
/* If detailed data is pixel timing */
|
|
struct detailed_pixel_timing {
|
|
u8 hactive_lo;
|
|
u8 hblank_lo;
|
|
u8 hactive_hblank_hi;
|
|
u8 vactive_lo;
|
|
u8 vblank_lo;
|
|
u8 vactive_vblank_hi;
|
|
u8 hsync_offset_lo;
|
|
u8 hsync_pulse_width_lo;
|
|
u8 vsync_offset_pulse_width_lo;
|
|
u8 hsync_vsync_offset_pulse_width_hi;
|
|
u8 width_mm_lo;
|
|
u8 height_mm_lo;
|
|
u8 width_height_mm_hi;
|
|
u8 hborder;
|
|
u8 vborder;
|
|
u8 misc;
|
|
} __attribute__((packed));
|
|
|
|
/* If it's not pixel timing, it'll be one of the below */
|
|
struct detailed_data_string {
|
|
u8 str[13];
|
|
} __attribute__((packed));
|
|
|
|
struct detailed_data_monitor_range {
|
|
u8 min_vfreq;
|
|
u8 max_vfreq;
|
|
u8 min_hfreq_khz;
|
|
u8 max_hfreq_khz;
|
|
u8 pixel_clock_mhz; /* need to multiply by 10 */
|
|
u8 flags;
|
|
union {
|
|
struct {
|
|
u8 reserved;
|
|
u8 hfreq_start_khz; /* need to multiply by 2 */
|
|
u8 c; /* need to divide by 2 */
|
|
__le16 m;
|
|
u8 k;
|
|
u8 j; /* need to divide by 2 */
|
|
} __attribute__((packed)) gtf2;
|
|
struct {
|
|
u8 version;
|
|
u8 data1; /* high 6 bits: extra clock resolution */
|
|
u8 data2; /* plus low 2 of above: max hactive */
|
|
u8 supported_aspects;
|
|
u8 flags; /* preferred aspect and blanking support */
|
|
u8 supported_scalings;
|
|
u8 preferred_refresh;
|
|
} __attribute__((packed)) cvt;
|
|
} formula;
|
|
} __attribute__((packed));
|
|
|
|
struct detailed_data_wpindex {
|
|
u8 white_yx_lo; /* Lower 2 bits each */
|
|
u8 white_x_hi;
|
|
u8 white_y_hi;
|
|
u8 gamma; /* need to divide by 100 then add 1 */
|
|
} __attribute__((packed));
|
|
|
|
struct detailed_data_color_point {
|
|
u8 windex1;
|
|
u8 wpindex1[3];
|
|
u8 windex2;
|
|
u8 wpindex2[3];
|
|
} __attribute__((packed));
|
|
|
|
struct cvt_timing {
|
|
u8 code[3];
|
|
} __attribute__((packed));
|
|
|
|
struct detailed_non_pixel {
|
|
u8 pad1;
|
|
u8 type; /* ff=serial, fe=string, fd=monitor range, fc=monitor name
|
|
fb=color point data, fa=standard timing data,
|
|
f9=undefined, f8=mfg. reserved */
|
|
u8 pad2;
|
|
union {
|
|
struct detailed_data_string str;
|
|
struct detailed_data_monitor_range range;
|
|
struct detailed_data_wpindex color;
|
|
struct std_timing timings[6];
|
|
struct cvt_timing cvt[4];
|
|
} data;
|
|
} __attribute__((packed));
|
|
|
|
#define EDID_DETAIL_EST_TIMINGS 0xf7
|
|
#define EDID_DETAIL_CVT_3BYTE 0xf8
|
|
#define EDID_DETAIL_COLOR_MGMT_DATA 0xf9
|
|
#define EDID_DETAIL_STD_MODES 0xfa
|
|
#define EDID_DETAIL_MONITOR_CPDATA 0xfb
|
|
#define EDID_DETAIL_MONITOR_NAME 0xfc
|
|
#define EDID_DETAIL_MONITOR_RANGE 0xfd
|
|
#define EDID_DETAIL_MONITOR_STRING 0xfe
|
|
#define EDID_DETAIL_MONITOR_SERIAL 0xff
|
|
|
|
struct detailed_timing {
|
|
__le16 pixel_clock; /* need to multiply by 10 KHz */
|
|
union {
|
|
struct detailed_pixel_timing pixel_data;
|
|
struct detailed_non_pixel other_data;
|
|
} data;
|
|
} __attribute__((packed));
|
|
|
|
#define DRM_EDID_INPUT_SERRATION_VSYNC (1 << 0)
|
|
#define DRM_EDID_INPUT_SYNC_ON_GREEN (1 << 1)
|
|
#define DRM_EDID_INPUT_COMPOSITE_SYNC (1 << 2)
|
|
#define DRM_EDID_INPUT_SEPARATE_SYNCS (1 << 3)
|
|
#define DRM_EDID_INPUT_BLANK_TO_BLACK (1 << 4)
|
|
#define DRM_EDID_INPUT_VIDEO_LEVEL (3 << 5)
|
|
#define DRM_EDID_INPUT_DIGITAL (1 << 7)
|
|
#define DRM_EDID_DIGITAL_DEPTH_MASK (7 << 4)
|
|
#define DRM_EDID_DIGITAL_DEPTH_UNDEF (0 << 4)
|
|
#define DRM_EDID_DIGITAL_DEPTH_6 (1 << 4)
|
|
#define DRM_EDID_DIGITAL_DEPTH_8 (2 << 4)
|
|
#define DRM_EDID_DIGITAL_DEPTH_10 (3 << 4)
|
|
#define DRM_EDID_DIGITAL_DEPTH_12 (4 << 4)
|
|
#define DRM_EDID_DIGITAL_DEPTH_14 (5 << 4)
|
|
#define DRM_EDID_DIGITAL_DEPTH_16 (6 << 4)
|
|
#define DRM_EDID_DIGITAL_DEPTH_RSVD (7 << 4)
|
|
#define DRM_EDID_DIGITAL_TYPE_UNDEF (0)
|
|
#define DRM_EDID_DIGITAL_TYPE_DVI (1)
|
|
#define DRM_EDID_DIGITAL_TYPE_HDMI_A (2)
|
|
#define DRM_EDID_DIGITAL_TYPE_HDMI_B (3)
|
|
#define DRM_EDID_DIGITAL_TYPE_MDDI (4)
|
|
#define DRM_EDID_DIGITAL_TYPE_DP (5)
|
|
|
|
#define DRM_EDID_FEATURE_DEFAULT_GTF (1 << 0)
|
|
#define DRM_EDID_FEATURE_PREFERRED_TIMING (1 << 1)
|
|
#define DRM_EDID_FEATURE_STANDARD_COLOR (1 << 2)
|
|
/* If analog */
|
|
#define DRM_EDID_FEATURE_DISPLAY_TYPE (3 << 3) /* 00=mono, 01=rgb, 10=non-rgb, 11=unknown */
|
|
/* If digital */
|
|
#define DRM_EDID_FEATURE_COLOR_MASK (3 << 3)
|
|
#define DRM_EDID_FEATURE_RGB (0 << 3)
|
|
#define DRM_EDID_FEATURE_RGB_YCRCB444 (1 << 3)
|
|
#define DRM_EDID_FEATURE_RGB_YCRCB422 (2 << 3)
|
|
#define DRM_EDID_FEATURE_RGB_YCRCB (3 << 3) /* both 4:4:4 and 4:2:2 */
|
|
|
|
#define DRM_EDID_FEATURE_PM_ACTIVE_OFF (1 << 5)
|
|
#define DRM_EDID_FEATURE_PM_SUSPEND (1 << 6)
|
|
#define DRM_EDID_FEATURE_PM_STANDBY (1 << 7)
|
|
|
|
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;
|
|
/* EDID version */
|
|
u8 version;
|
|
u8 revision;
|
|
/* Display info: */
|
|
u8 input;
|
|
u8 width_cm;
|
|
u8 height_cm;
|
|
u8 gamma;
|
|
u8 features;
|
|
/* Color characteristics */
|
|
u8 red_green_lo;
|
|
u8 black_white_lo;
|
|
u8 red_x;
|
|
u8 red_y;
|
|
u8 green_x;
|
|
u8 green_y;
|
|
u8 blue_x;
|
|
u8 blue_y;
|
|
u8 white_x;
|
|
u8 white_y;
|
|
/* Est. timings and mfg rsvd timings*/
|
|
struct est_timings established_timings;
|
|
/* Standard timings 1-8*/
|
|
struct std_timing standard_timings[8];
|
|
/* Detailing timings 1-4 */
|
|
struct detailed_timing detailed_timings[4];
|
|
/* Number of 128 byte ext. blocks */
|
|
u8 extensions;
|
|
/* Checksum */
|
|
u8 checksum;
|
|
} __attribute__((packed));
|
|
|
|
#define EDID_PRODUCT_ID(e) ((e)->prod_code[0] | ((e)->prod_code[1] << 8))
|
|
|
|
struct drm_encoder;
|
|
struct drm_connector;
|
|
struct drm_display_mode;
|
|
struct hdmi_avi_infoframe;
|
|
|
|
void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid);
|
|
int drm_av_sync_delay(struct drm_connector *connector,
|
|
struct drm_display_mode *mode);
|
|
struct drm_connector *drm_select_eld(struct drm_encoder *encoder,
|
|
struct drm_display_mode *mode);
|
|
int drm_load_edid_firmware(struct drm_connector *connector);
|
|
|
|
int
|
|
drm_hdmi_avi_infoframe_from_display_mode(struct hdmi_avi_infoframe *frame,
|
|
const struct drm_display_mode *mode);
|
|
|
|
#endif /* __DRM_EDID_H__ */
|