diff options
Diffstat (limited to 'xorg-server/hw/xfree86/ddc/interpret_edid.c')
| -rw-r--r-- | xorg-server/hw/xfree86/ddc/interpret_edid.c | 375 |
1 files changed, 271 insertions, 104 deletions
diff --git a/xorg-server/hw/xfree86/ddc/interpret_edid.c b/xorg-server/hw/xfree86/ddc/interpret_edid.c index 12a52545e..f3e593aec 100644 --- a/xorg-server/hw/xfree86/ddc/interpret_edid.c +++ b/xorg-server/hw/xfree86/ddc/interpret_edid.c @@ -42,6 +42,8 @@ static void get_display_section(Uchar*, struct disp_features *, static void get_established_timing_section(Uchar*, struct established_timings *); static void get_std_timing_section(Uchar*, struct std_timings *, struct edid_version *); +static void fetch_detailed_block(Uchar *c, struct edid_version *ver, + struct detailed_monitor_section *det_mon); static void get_dt_md_section(Uchar *, struct edid_version *, struct detailed_monitor_section *det_mon); static void copy_string(Uchar *, Uchar *); @@ -53,11 +55,25 @@ static void get_detailed_timing_section(Uchar*, struct detailed_timings *); static Bool validate_version(int scrnIndex, struct edid_version *); static void +find_ranges_section(struct detailed_monitor_section *det, void *ranges) +{ + if (det->type == DS_RANGES && det->section.ranges.max_clock) + *(struct monitor_ranges **)ranges = &det->section.ranges; +} + +static void +find_max_detailed_clock(struct detailed_monitor_section *det, void *ret) +{ + if (det->type == DT) { + *(int *)ret = max(*((int *)ret), + det->section.d_timings.clock); + } +} + +static void handle_edid_quirks(xf86MonPtr m) { - int i, j; - struct detailed_timings *preferred_timing; - struct monitor_ranges *ranges; + struct monitor_ranges *ranges = NULL; /* * max_clock is only encoded in EDID in tens of MHz, so occasionally we @@ -65,28 +81,49 @@ handle_edid_quirks(xf86MonPtr m) * similar. Strictly we should refuse to round up too far, but let's * see how well this works. */ - for (i = 0; i < 4; i++) { - if (m->det_mon[i].type == DS_RANGES) { - ranges = &m->det_mon[i].section.ranges; - for (j = 0; j < 4; j++) { - if (m->det_mon[j].type == DT) { - preferred_timing = &m->det_mon[j].section.d_timings; - if (!ranges->max_clock) continue; /* zero is legal */ - if (ranges->max_clock * 1000000 < preferred_timing->clock) { - xf86Msg(X_WARNING, - "EDID preferred timing clock %.2fMHz exceeds " - "claimed max %dMHz, fixing\n", - preferred_timing->clock / 1.0e6, - ranges->max_clock); - ranges->max_clock = - (preferred_timing->clock+999999)/1000000; - return; - } - } - } - } + + /* Try to find Monitor Range and max clock, then re-set range value*/ + xf86ForEachDetailedBlock(m, find_ranges_section, &ranges); + if (ranges && ranges->max_clock) { + int clock = 0; + xf86ForEachDetailedBlock(m, find_max_detailed_clock, &clock); + if (clock && (ranges->max_clock * 1e6 < clock)) { + xf86Msg(X_WARNING, "EDID timing clock %.2f exceeds claimed max " + "%dMHz, fixing\n", clock / 1.0e6, ranges->max_clock); + ranges->max_clock = (clock+999999)/1e6; + } + } +} + +struct det_hv_parameter { + int real_hsize; + int real_vsize; + float target_aspect; +}; + +static void handle_detailed_hvsize(struct detailed_monitor_section *det_mon, + void *data) +{ + struct det_hv_parameter *p = (struct det_hv_parameter *)data; + float timing_aspect; + + if (det_mon->type == DT) { + struct detailed_timings *timing; + timing = &det_mon->section.d_timings; + + if (!timing->v_size) + return; + + timing_aspect = (float)timing->h_size / timing->v_size; + if (fabs(1 - (timing_aspect / p->target_aspect)) < 0.05) { + p->real_hsize = max(p->real_hsize, timing->h_size); + p->real_vsize = max(p->real_vsize, timing->v_size); + } } +} +static void encode_aspect_ratio(xf86MonPtr m) +{ /* * some monitors encode the aspect ratio instead of the physical size. * try to find the largest detailed timing that matches that aspect @@ -96,38 +133,26 @@ handle_edid_quirks(xf86MonPtr m) (m->features.hsize == 16 && m->features.vsize == 10) || (m->features.hsize == 4 && m->features.vsize == 3) || (m->features.hsize == 5 && m->features.vsize == 4)) { - int real_hsize = 0, real_vsize = 0; - float target_aspect, timing_aspect; - - target_aspect = (float)m->features.hsize / (float)m->features.vsize; - for (i = 0; i < 4; i++) { - if (m->det_mon[i].type == DT) { - struct detailed_timings *timing; - timing = &m->det_mon[i].section.d_timings; - - if (!timing->v_size) - continue; - - timing_aspect = (float)timing->h_size / (float)timing->v_size; - if (fabs(1 - (timing_aspect / target_aspect)) < 0.05) { - real_hsize = max(real_hsize, timing->h_size); - real_vsize = max(real_vsize, timing->v_size); - } - } - } - if (!real_hsize || !real_vsize) { + struct det_hv_parameter p; + p.real_hsize = 0; + p.real_vsize = 0; + p.target_aspect = (float)m->features.hsize /m->features.vsize; + + xf86ForEachDetailedBlock(m, handle_detailed_hvsize, &p); + + if (!p.real_hsize || !p.real_vsize) { m->features.hsize = m->features.vsize = 0; - } else if ((m->features.hsize * 10 == real_hsize) && - (m->features.vsize * 10 == real_vsize)) { + } else if ((m->features.hsize * 10 == p.real_hsize) && + (m->features.vsize * 10 == p.real_vsize)) { /* exact match is just unlikely, should do a better check though */ m->features.hsize = m->features.vsize = 0; } else { /* convert mm to cm */ - m->features.hsize = (real_hsize + 5) / 10; - m->features.vsize = (real_vsize + 5) / 10; + m->features.hsize = (p.real_hsize + 5) / 10; + m->features.vsize = (p.real_vsize + 5) / 10; } - + xf86Msg(X_INFO, "Quirked EDID physical size to %dx%d cm\n", m->features.hsize, m->features.vsize); } @@ -156,6 +181,7 @@ xf86InterpretEDID(int scrnIndex, Uchar *block) m->no_sections = (int)*(char *)SECTION(NO_EDID,block); handle_edid_quirks(m); + encode_aspect_ratio(m); return (m); @@ -164,6 +190,141 @@ xf86InterpretEDID(int scrnIndex, Uchar *block) return NULL; } +static int get_cea_detail_timing(Uchar *blk, xf86MonPtr mon, + struct detailed_monitor_section *det_mon) +{ + int dt_num; + int dt_offset = ((struct cea_ext_body *)blk)->dt_offset; + + dt_num = 0; + + if (dt_offset < CEA_EXT_MIN_DATA_OFFSET) + return dt_num; + + for (; dt_offset < (CEA_EXT_MAX_DATA_OFFSET - DET_TIMING_INFO_LEN) && + dt_num < CEA_EXT_DET_TIMING_NUM; + _NEXT_DT_MD_SECTION(dt_offset)) { + + fetch_detailed_block(blk + dt_offset, &mon->ver, det_mon + dt_num); + dt_num = dt_num + 1 ; + } + + return dt_num; +} + +static void handle_cea_detail_block(Uchar *ext, xf86MonPtr mon, + handle_detailed_fn fn, + void *data) +{ + int i; + struct detailed_monitor_section det_mon[CEA_EXT_DET_TIMING_NUM]; + int det_mon_num; + + det_mon_num = get_cea_detail_timing(ext, mon, det_mon); + + for (i = 0; i < det_mon_num; i++) + fn(det_mon + i, data); +} + +void xf86ForEachDetailedBlock(xf86MonPtr mon, + handle_detailed_fn fn, + void *data) +{ + int i; + Uchar *ext; + + if (mon == NULL) + return; + + for (i = 0; i < DET_TIMINGS; i++) + fn(mon->det_mon + i, data); + + for (i = 0; i < mon->no_sections; i++) { + ext = mon->rawData + EDID1_LEN * (i + 1); + switch (ext[EXT_TAG]){ + case CEA_EXT: + handle_cea_detail_block(ext, mon, fn, data); + break; + case VTB_EXT: + case DI_EXT: + case LS_EXT: + case MI_EXT: + break; + } + } +} + +static struct cea_data_block * +extract_cea_data_block(Uchar *ext, int data_type) +{ + struct cea_ext_body *cea; + struct cea_data_block *data_collection; + struct cea_data_block *data_end; + + cea = (struct cea_ext_body *)ext; + + if (cea->dt_offset <= CEA_EXT_MIN_DATA_OFFSET) + return NULL; + + data_collection = &cea->data_collection; + data_end = (struct cea_data_block *)(cea->dt_offset + ext); + + for ( ;data_collection < data_end;) { + + if (data_type == data_collection->tag) { + return data_collection; + } + data_collection = (void *)((unsigned char *)data_collection + + data_collection->len + 1); + } + + return NULL; +} + +static void handle_cea_video_block(Uchar *ext, handle_video_fn fn, void *data) +{ + struct cea_video_block *video; + struct cea_video_block *video_end; + struct cea_data_block *data_collection; + + data_collection = extract_cea_data_block(ext, CEA_VIDEO_BLK); + if (data_collection == NULL) + return; + + video = &data_collection->u.video; + video_end = (struct cea_video_block *) + ((Uchar *)video + data_collection->len); + + for (; video < video_end; video = video + 1) { + fn(video, data); + } +} + +void xf86ForEachVideoBlock(xf86MonPtr mon, + handle_video_fn fn, + void *data) +{ + int i; + Uchar *ext; + + if (mon == NULL) + return; + + for (i = 0; i < mon->no_sections; i++) { + ext = mon->rawData + EDID1_LEN * (i + 1); + switch (ext[EXT_TAG]) { + case CEA_EXT: + handle_cea_video_block(ext, fn, data); + break; + case VTB_EXT: + case DI_EXT: + case LS_EXT: + case MI_EXT: + break; + } + } +} + xf86MonPtr xf86InterpretEEDID(int scrnIndex, Uchar *block) { @@ -288,66 +449,72 @@ get_std_timing_section(Uchar *c, struct std_timings *r, static const unsigned char empty_block[18]; static void -get_dt_md_section(Uchar *c, struct edid_version *ver, - struct detailed_monitor_section *det_mon) +fetch_detailed_block(Uchar *c, struct edid_version *ver, + struct detailed_monitor_section *det_mon) { - int i; - - for (i=0;i<DET_TIMINGS;i++) { if (ver->version == 1 && ver->revision >= 1 && IS_MONITOR_DESC) { - - switch (MONITOR_DESC_TYPE) { - case SERIAL_NUMBER: - det_mon[i].type = DS_SERIAL; - copy_string(c,det_mon[i].section.serial); - break; - case ASCII_STR: - det_mon[i].type = DS_ASCII_STR; - copy_string(c,det_mon[i].section.ascii_data); - break; - case MONITOR_RANGES: - det_mon[i].type = DS_RANGES; - get_monitor_ranges(c,&det_mon[i].section.ranges); - break; - case MONITOR_NAME: - det_mon[i].type = DS_NAME; - copy_string(c,det_mon[i].section.name); - break; - case ADD_COLOR_POINT: - det_mon[i].type = DS_WHITE_P; - get_whitepoint_section(c,det_mon[i].section.wp); - break; - case ADD_STD_TIMINGS: - det_mon[i].type = DS_STD_TIMINGS; - get_dst_timing_section(c,det_mon[i].section.std_t, ver); - break; - case COLOR_MANAGEMENT_DATA: - det_mon[i].type = DS_CMD; - break; - case CVT_3BYTE_DATA: - det_mon[i].type = DS_CVT; - get_cvt_timing_section(c, det_mon[i].section.cvt); - break; - case ADD_EST_TIMINGS: - det_mon[i].type = DS_EST_III; - memcpy(det_mon[i].section.est_iii, c + 6, 6); - break; - case ADD_DUMMY: - det_mon[i].type = DS_DUMMY; - break; - default: - det_mon[i].type = DS_UNKOWN; - break; - } - if (c[3] <= 0x0F && memcmp(c, empty_block, sizeof(empty_block))) { - det_mon[i].type = DS_VENDOR + c[3]; - } + switch (MONITOR_DESC_TYPE) { + case SERIAL_NUMBER: + det_mon->type = DS_SERIAL; + copy_string(c,det_mon->section.serial); + break; + case ASCII_STR: + det_mon->type = DS_ASCII_STR; + copy_string(c,det_mon->section.ascii_data); + break; + case MONITOR_RANGES: + det_mon->type = DS_RANGES; + get_monitor_ranges(c,&det_mon->section.ranges); + break; + case MONITOR_NAME: + det_mon->type = DS_NAME; + copy_string(c,det_mon->section.name); + break; + case ADD_COLOR_POINT: + det_mon->type = DS_WHITE_P; + get_whitepoint_section(c,det_mon->section.wp); + break; + case ADD_STD_TIMINGS: + det_mon->type = DS_STD_TIMINGS; + get_dst_timing_section(c,det_mon->section.std_t, ver); + break; + case COLOR_MANAGEMENT_DATA: + det_mon->type = DS_CMD; + break; + case CVT_3BYTE_DATA: + det_mon->type = DS_CVT; + get_cvt_timing_section(c, det_mon->section.cvt); + break; + case ADD_EST_TIMINGS: + det_mon->type = DS_EST_III; + memcpy(det_mon->section.est_iii, c + 6, 6); + break; + case ADD_DUMMY: + det_mon->type = DS_DUMMY; + break; + default: + det_mon->type = DS_UNKOWN; + break; + } + if (c[3] <= 0x0F && memcmp(c, empty_block, sizeof(empty_block))) { + det_mon->type = DS_VENDOR + c[3]; + } } else { - det_mon[i].type = DT; - get_detailed_timing_section(c,&det_mon[i].section.d_timings); + det_mon->type = DT; + get_detailed_timing_section(c, &det_mon->section.d_timings); + } +} + +static void +get_dt_md_section(Uchar *c, struct edid_version *ver, + struct detailed_monitor_section *det_mon) +{ + int i; + + for (i=0; i < DET_TIMINGS; i++) { + fetch_detailed_block(c, ver, det_mon + i); + NEXT_DT_MD_SECTION; } - NEXT_DT_MD_SECTION; - } } static void |