| /* |
| * drivers/video/edid.h - EDID/DDC Header |
| * |
| * Based on: |
| * 1. XFree86 4.3.0, edid.h |
| * Copyright 1998 by Egbert Eich <Egbert.Eich@Physik.TU-Darmstadt.DE> |
| * |
| * 2. John Fremlin <vii@users.sourceforge.net> and |
| * Ani Joshi <ajoshi@unixbox.com> |
| * |
| * DDC is a Trademark of VESA (Video Electronics Standard Association). |
| * |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file COPYING in the main directory of this archive |
| * for more details. |
| */ |
| |
| #ifndef __EDID_H__ |
| #define __EDID_H__ |
| |
| #define EDID_LENGTH 0x80 |
| #define EDID_HEADER 0x00 |
| #define EDID_HEADER_END 0x07 |
| |
| #define ID_MANUFACTURER_NAME 0x08 |
| #define ID_MANUFACTURER_NAME_END 0x09 |
| #define ID_MODEL 0x0a |
| |
| #define ID_SERIAL_NUMBER 0x0c |
| |
| #define MANUFACTURE_WEEK 0x10 |
| #define MANUFACTURE_YEAR 0x11 |
| |
| #define EDID_STRUCT_VERSION 0x12 |
| #define EDID_STRUCT_REVISION 0x13 |
| |
| #define EDID_STRUCT_DISPLAY 0x14 |
| |
| #define DPMS_FLAGS 0x18 |
| #define ESTABLISHED_TIMING_1 0x23 |
| #define ESTABLISHED_TIMING_2 0x24 |
| #define MANUFACTURERS_TIMINGS 0x25 |
| |
| /* standard timings supported */ |
| #define STD_TIMING 8 |
| #define STD_TIMING_DESCRIPTION_SIZE 2 |
| #define STD_TIMING_DESCRIPTIONS_START 0x26 |
| |
| #define DETAILED_TIMING_DESCRIPTIONS_START 0x36 |
| #define DETAILED_TIMING_DESCRIPTION_SIZE 18 |
| #define NO_DETAILED_TIMING_DESCRIPTIONS 4 |
| |
| #define DETAILED_TIMING_DESCRIPTION_1 0x36 |
| #define DETAILED_TIMING_DESCRIPTION_2 0x48 |
| #define DETAILED_TIMING_DESCRIPTION_3 0x5a |
| #define DETAILED_TIMING_DESCRIPTION_4 0x6c |
| |
| #define DESCRIPTOR_DATA 5 |
| |
| #define UPPER_NIBBLE( x ) \ |
| (((128|64|32|16) & (x)) >> 4) |
| |
| #define LOWER_NIBBLE( x ) \ |
| ((1|2|4|8) & (x)) |
| |
| #define COMBINE_HI_8LO( hi, lo ) \ |
| ( (((unsigned)hi) << 8) | (unsigned)lo ) |
| |
| #define COMBINE_HI_4LO( hi, lo ) \ |
| ( (((unsigned)hi) << 4) | (unsigned)lo ) |
| |
| #define PIXEL_CLOCK_LO (unsigned)block[ 0 ] |
| #define PIXEL_CLOCK_HI (unsigned)block[ 1 ] |
| #define PIXEL_CLOCK (COMBINE_HI_8LO( PIXEL_CLOCK_HI,PIXEL_CLOCK_LO )*10000) |
| #define H_ACTIVE_LO (unsigned)block[ 2 ] |
| #define H_BLANKING_LO (unsigned)block[ 3 ] |
| #define H_ACTIVE_HI UPPER_NIBBLE( (unsigned)block[ 4 ] ) |
| #define H_ACTIVE COMBINE_HI_8LO( H_ACTIVE_HI, H_ACTIVE_LO ) |
| #define H_BLANKING_HI LOWER_NIBBLE( (unsigned)block[ 4 ] ) |
| #define H_BLANKING COMBINE_HI_8LO( H_BLANKING_HI, H_BLANKING_LO ) |
| |
| #define V_ACTIVE_LO (unsigned)block[ 5 ] |
| #define V_BLANKING_LO (unsigned)block[ 6 ] |
| #define V_ACTIVE_HI UPPER_NIBBLE( (unsigned)block[ 7 ] ) |
| #define V_ACTIVE COMBINE_HI_8LO( V_ACTIVE_HI, V_ACTIVE_LO ) |
| #define V_BLANKING_HI LOWER_NIBBLE( (unsigned)block[ 7 ] ) |
| #define V_BLANKING COMBINE_HI_8LO( V_BLANKING_HI, V_BLANKING_LO ) |
| |
| #define H_SYNC_OFFSET_LO (unsigned)block[ 8 ] |
| #define H_SYNC_WIDTH_LO (unsigned)block[ 9 ] |
| |
| #define V_SYNC_OFFSET_LO UPPER_NIBBLE( (unsigned)block[ 10 ] ) |
| #define V_SYNC_WIDTH_LO LOWER_NIBBLE( (unsigned)block[ 10 ] ) |
| |
| #define V_SYNC_WIDTH_HI ((unsigned)block[ 11 ] & (1|2)) |
| #define V_SYNC_OFFSET_HI (((unsigned)block[ 11 ] & (4|8)) >> 2) |
| |
| #define H_SYNC_WIDTH_HI (((unsigned)block[ 11 ] & (16|32)) >> 4) |
| #define H_SYNC_OFFSET_HI (((unsigned)block[ 11 ] & (64|128)) >> 6) |
| |
| #define V_SYNC_WIDTH COMBINE_HI_4LO( V_SYNC_WIDTH_HI, V_SYNC_WIDTH_LO ) |
| #define V_SYNC_OFFSET COMBINE_HI_4LO( V_SYNC_OFFSET_HI, V_SYNC_OFFSET_LO ) |
| |
| #define H_SYNC_WIDTH COMBINE_HI_8LO( H_SYNC_WIDTH_HI, H_SYNC_WIDTH_LO ) |
| #define H_SYNC_OFFSET COMBINE_HI_8LO( H_SYNC_OFFSET_HI, H_SYNC_OFFSET_LO ) |
| |
| #define H_SIZE_LO (unsigned)block[ 12 ] |
| #define V_SIZE_LO (unsigned)block[ 13 ] |
| |
| #define H_SIZE_HI UPPER_NIBBLE( (unsigned)block[ 14 ] ) |
| #define V_SIZE_HI LOWER_NIBBLE( (unsigned)block[ 14 ] ) |
| |
| #define H_SIZE COMBINE_HI_8LO( H_SIZE_HI, H_SIZE_LO ) |
| #define V_SIZE COMBINE_HI_8LO( V_SIZE_HI, V_SIZE_LO ) |
| |
| #define H_BORDER (unsigned)block[ 15 ] |
| #define V_BORDER (unsigned)block[ 16 ] |
| |
| #define FLAGS (unsigned)block[ 17 ] |
| |
| #define INTERLACED (FLAGS&128) |
| #define SYNC_TYPE (FLAGS&3<<3) /* bits 4,3 */ |
| #define SYNC_SEPARATE (3<<3) |
| #define HSYNC_POSITIVE (FLAGS & 4) |
| #define VSYNC_POSITIVE (FLAGS & 2) |
| |
| #define V_MIN_RATE block[ 5 ] |
| #define V_MAX_RATE block[ 6 ] |
| #define H_MIN_RATE block[ 7 ] |
| #define H_MAX_RATE block[ 8 ] |
| #define MAX_PIXEL_CLOCK (((int)block[ 9 ]) * 10) |
| #define GTF_SUPPORT block[10] |
| |
| #define DPMS_ACTIVE_OFF (1 << 5) |
| #define DPMS_SUSPEND (1 << 6) |
| #define DPMS_STANDBY (1 << 7) |
| |
| #endif /* __EDID_H__ */ |
