diff options
Diffstat (limited to 'drivers/video/wmt/edid.h')
| -rw-r--r-- | drivers/video/wmt/edid.h | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/drivers/video/wmt/edid.h b/drivers/video/wmt/edid.h new file mode 100644 index 00000000..ec85a81b --- /dev/null +++ b/drivers/video/wmt/edid.h @@ -0,0 +1,155 @@ +/*++ + * linux/drivers/video/wmt/edid.h + * WonderMedia video post processor (VPP) driver + * + * Copyright c 2013 WonderMedia Technologies, Inc. + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * WonderMedia Technologies, Inc. + * 4F, 533, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C +--*/ + +#ifndef EDID_H +#define EDID_H + +#define EDID_BLOCK_MAX 4 + +/*------------------------------------------------------------------------------ + Following definitions, please refer spec of EDID. You may refer it on + http://en.wikipedia.org/wiki/EDID#EDID_1.3_data_format +------------------------------------------------------------------------------*/ + +#define EDID_LENGTH 0x80 + +/*------------------------------------------------------------------------------ + Offset 00-19: HEADER INFORMATION +------------------------------------------------------------------------------*/ +/* 00¡V07: Header information "00h FFh FFh FFh FFh FFh FFh 00h" */ +#define EDID_HEADER 0x00 +#define EDID_HEADER_END 0x07 + +/* 08¡V09: Manufacturer ID. These IDs are assigned by Microsoft. + "00001=A¡¨; ¡§00010=B¡¨; ... ¡§11010=Z¡¨. Bit 7 (at address 08h) is 0, + the first character (letter) is located at bits 6 ¡÷ 2 + (at address 08h), the second character (letter) is located at + bits 1 & 0 (at address 08h) and bits 7 ¡÷ 5 (at address 09h), and the + third character (letter) is located at bits 4 ¡÷ 0 (at address 09h). +*/ +#define ID_MANUFACTURER_NAME 0x08 +#define ID_MANUFACTURER_NAME_END 0x09 + +/* 10¡V11: Product ID Code (stored as LSB first). Assigned by manufacturer */ +#define ID_MODEL 0x0a + +/* 12¡V15: 32-bit Serial Number. No requirement for the format. Usually + stored as LSB first. In order to maintain compatibility with previous + requirements the field should set at least one byte of the field to be + non-zero if an ASCII serial number descriptor is + provided in the detailed timing section. +*/ +#define ID_SERIAL_NUMBER 0x0c + +/* 16: Week of Manufacture. This varies by manufacturer. One way is to count + January 1-7 as week 1, January 8-15 as week 2 and so on. Some count + based on the week number (Sunday-Saturday). Valid range is 1-54. + 17: Year of Manufacture. Add 1990 to the value for actual year. */ +#define MANUFACTURE_WEEK 0x10 +#define MANUFACTURE_YEAR 0x11 + +/* 18: EDID Version Number. "01h" + 19: EDID Revision Number "03h" */ +#define EDID_STRUCT_VERSION 0x12 +#define EDID_STRUCT_REVISION 0x13 + +/*------------------------------------------------------------------------------ + Offset 20-24: BASIC DISPLAY PARAMETERS +------------------------------------------------------------------------------*/ +#define DPMS_FLAGS 0x18 +#define ESTABLISHED_TIMING_I 0x23 +#define ESTABLISHED_TIMING_II 0x24 +#define MANUFACTURERS_TIMINGS 0x25 + +#define STANDARD_TIMING_IDENTIFICATION_START 0x26 +#define STANDARD_TIMING_IDENTIFICATION_SIZE 16 + +#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 EDID_TMR_INTERLACE BIT(31) +#define EDID_TMR_FREQ 0xFF +typedef struct { + unsigned int resx; + unsigned int resy; + int freq; /* EDID_TMR_XXX */ +} edid_timing_t; + +/* EDID option flag */ +#define EDID_OPT_VALID 0x01 +#define EDID_OPT_YUV422 0x10 +#define EDID_OPT_YUV444 0x20 +#define EDID_OPT_AUDIO 0x40 +#define EDID_OPT_UNDERSCAN 0x80 +#define EDID_OPT_HDMI 0x100 +#define EDID_OPT_3D BIT(9) +#define EDID_OPT_16_9 BIT(10) + +typedef struct { + unsigned int establish_timing; + edid_timing_t standard_timing[8]; + struct fb_videomode detail_timing[4]; + struct fb_videomode cea_timing[6]; + char cea_vic[8]; + unsigned int pixel_clock_limit; + unsigned int option; + unsigned short hdmi_phy_addr; +} edid_info_t; + +#define VENDOR_NAME_LEN 4 +#define MONITOR_NAME_LEN 20 +#define AUD_SAD_NUM 32 +typedef struct { + char flag; /* 0: sad available, 1: sad invalid */ + char sad_byte[3]; +} sad_t; + +typedef struct { + char vendor_name[VENDOR_NAME_LEN]; + char monitor_name[MONITOR_NAME_LEN]; +} tv_name_t; + +typedef struct { + tv_name_t tv_name; + sad_t sad[AUD_SAD_NUM]; +} edid_parsed_t; + +extern edid_info_t edid_info; +extern int edid_msg_enable; +extern int edid_disable; +extern edid_parsed_t edid_parsed; + +extern int edid_parse(char *edid, edid_info_t *info); +extern int edid_find_support(edid_info_t *info, unsigned int resx, + unsigned int resy, int freq, struct fb_videomode **vmode); +extern void edid_dump(char *edid); +extern int edid_checksum(char *edid, int len); +extern unsigned int edid_get_hdmi_phy_addr(void); + +#endif |