From 0f834b91a4768673833ab4917e87d86c237bb1a6 Mon Sep 17 00:00:00 2001 From: marha Date: Fri, 23 Mar 2012 10:05:55 +0100 Subject: libX11 xserver fontconfig mesa pixman xkbcomp xkeyboard-config git update 23 Mar 2012 --- xorg-server/hw/xfree86/ddc/interpret_edid.c | 1399 ++++++++++++++------------- 1 file changed, 714 insertions(+), 685 deletions(-) (limited to 'xorg-server/hw/xfree86/ddc/interpret_edid.c') diff --git a/xorg-server/hw/xfree86/ddc/interpret_edid.c b/xorg-server/hw/xfree86/ddc/interpret_edid.c index d1001a21f..882a6b201 100644 --- a/xorg-server/hw/xfree86/ddc/interpret_edid.c +++ b/xorg-server/hw/xfree86/ddc/interpret_edid.c @@ -1,685 +1,714 @@ -/* - * Copyright 1998 by Egbert Eich - * Copyright 2007 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 (including the next - * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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. - * - * interpret_edid.c: interpret a primary EDID block - */ - -#ifdef HAVE_XORG_CONFIG_H -#include -#endif - -#include "misc.h" -#include "xf86.h" -#include "xf86_OSproc.h" -#define _PARSE_EDID_ -#include "xf86DDC.h" -#include - -static void get_vendor_section(Uchar*, struct vendor *); -static void get_version_section(Uchar*, struct edid_version *); -static void get_display_section(Uchar*, struct disp_features *, - struct edid_version *); -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 *); -static void get_dst_timing_section(Uchar *, struct std_timings *, - struct edid_version *); -static void get_monitor_ranges(Uchar *, struct monitor_ranges *); -static void get_whitepoint_section(Uchar *, struct whitePoints *); -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) -{ - struct monitor_ranges *ranges = NULL; - - /* - * max_clock is only encoded in EDID in tens of MHz, so occasionally we - * find a monitor claiming a max of 160 with a mode requiring 162, or - * similar. Strictly we should refuse to round up too far, but let's - * see how well this works. - */ - - /* 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 - * ratio and use that to fill in the feature section. - */ - if ((m->features.hsize == 16 && m->features.vsize == 9) || - (m->features.hsize == 16 && m->features.vsize == 10) || - (m->features.hsize == 4 && m->features.vsize == 3) || - (m->features.hsize == 5 && m->features.vsize == 4)) { - - 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 == 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 = (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); - } -} - -xf86MonPtr -xf86InterpretEDID(int scrnIndex, Uchar *block) -{ - xf86MonPtr m; - - if (!block) return NULL; - if (! (m = xnfcalloc(sizeof(xf86Monitor),1))) return NULL; - m->scrnIndex = scrnIndex; - m->rawData = block; - - get_vendor_section(SECTION(VENDOR_SECTION,block),&m->vendor); - get_version_section(SECTION(VERSION_SECTION,block),&m->ver); - if (!validate_version(scrnIndex, &m->ver)) goto error; - get_display_section(SECTION(DISPLAY_SECTION,block),&m->features, - &m->ver); - get_established_timing_section(SECTION(ESTABLISHED_TIMING_SECTION,block), - &m->timings1); - get_std_timing_section(SECTION(STD_TIMING_SECTION,block),m->timings2, - &m->ver); - get_dt_md_section(SECTION(DET_TIMING_SECTION,block),&m->ver, m->det_mon); - m->no_sections = (int)*(char *)SECTION(NO_EDID,block); - - handle_edid_quirks(m); - encode_aspect_ratio(m); - - return m; - - error: - free(m); - 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) -{ - xf86MonPtr m; - - m = xf86InterpretEDID(scrnIndex, block); - if (!m) - return NULL; - - /* extension parse */ - - return m; -} - -static void -get_vendor_section(Uchar *c, struct vendor *r) -{ - r->name[0] = L1; - r->name[1] = L2; - r->name[2] = L3; - r->name[3] = '\0'; - - r->prod_id = PROD_ID; - r->serial = SERIAL_NO; - r->week = WEEK; - r->year = YEAR; -} - -static void -get_version_section(Uchar *c, struct edid_version *r) -{ - r->version = VERSION; - r->revision = REVISION; -} - -static void -get_display_section(Uchar *c, struct disp_features *r, - struct edid_version *v) -{ - r->input_type = INPUT_TYPE; - if (!DIGITAL(r->input_type)) { - r->input_voltage = INPUT_VOLTAGE; - r->input_setup = SETUP; - r->input_sync = SYNC; - } else if (v->revision == 2 || v->revision == 3) { - r->input_dfp = DFP; - } else if (v->revision >= 4) { - r->input_bpc = BPC; - r->input_interface = DIGITAL_INTERFACE; - } - r->hsize = HSIZE_MAX; - r->vsize = VSIZE_MAX; - r->gamma = GAMMA; - r->dpms = DPMS; - r->display_type = DISPLAY_TYPE; - r->msc = MSC; - r->redx = REDX; - r->redy = REDY; - r->greenx = GREENX; - r->greeny = GREENY; - r->bluex = BLUEX; - r->bluey = BLUEY; - r->whitex = WHITEX; - r->whitey = WHITEY; -} - -static void -get_established_timing_section(Uchar *c, struct established_timings *r) -{ - r->t1 = T1; - r->t2 = T2; - r->t_manu = T_MANU; -} - -static void -get_cvt_timing_section(Uchar *c, struct cvt_timings *r) -{ - int i; - - for (i = 0; i < 4; i++) { - if (c[0] && c[1] && c[2]) { - r[i].height = (c[0] + ((c[1] & 0xF0) << 8) + 1) * 2; - switch (c[1] & 0xc0) { - case 0x00: r[i].width = r[i].height * 4 / 3; break; - case 0x40: r[i].width = r[i].height * 16 / 9; break; - case 0x80: r[i].width = r[i].height * 16 / 10; break; - case 0xc0: r[i].width = r[i].height * 15 / 9; break; - } - switch (c[2] & 0x60) { - case 0x00: r[i].rate = 50; break; - case 0x20: r[i].rate = 60; break; - case 0x40: r[i].rate = 75; break; - case 0x60: r[i].rate = 85; break; - } - r[i].rates = c[2] & 0x1f; - } else { - return; - } - c += 3; - } -} - -static void -get_std_timing_section(Uchar *c, struct std_timings *r, - struct edid_version *v) -{ - int i; - - for (i=0;iversion == 1 && ver->revision >= 1 && IS_MONITOR_DESC) { - 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->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; - } -} - -static void -copy_string(Uchar *c, Uchar *s) -{ - int i; - c = c + 5; - for (i = 0; (i < 13 && *c != 0x0A); i++) - *(s++) = *(c++); - *s = 0; - while (i-- && (*--s == 0x20)) *s = 0; -} - -static void -get_dst_timing_section(Uchar *c, struct std_timings *t, - struct edid_version *v) -{ - int j; - c = c + 5; - for (j = 0; j < 5; j++) { - t[j].hsize = HSIZE1; - VSIZE1(t[j].vsize); - t[j].refresh = REFRESH_R; - t[j].id = STD_TIMING_ID; - NEXT_STD_TIMING; - } -} - -static void -get_monitor_ranges(Uchar *c, struct monitor_ranges *r) -{ - r->min_v = MIN_V; - r->max_v = MAX_V; - r->min_h = MIN_H; - r->max_h = MAX_H; - r->max_clock = 0; - if(MAX_CLOCK != 0xff) /* is specified? */ - r->max_clock = MAX_CLOCK * 10 + 5; - if (HAVE_2ND_GTF) { - r->gtf_2nd_f = F_2ND_GTF; - r->gtf_2nd_c = C_2ND_GTF; - r->gtf_2nd_m = M_2ND_GTF; - r->gtf_2nd_k = K_2ND_GTF; - r->gtf_2nd_j = J_2ND_GTF; - } else { - r->gtf_2nd_f = 0; - } - if (HAVE_CVT) { - r->max_clock_khz = MAX_CLOCK_KHZ; - r->max_clock = r->max_clock_khz / 1000; - r->maxwidth = MAXWIDTH; - r->supported_aspect = SUPPORTED_ASPECT; - r->preferred_aspect = PREFERRED_ASPECT; - r->supported_blanking = SUPPORTED_BLANKING; - r->supported_scaling = SUPPORTED_SCALING; - r->preferred_refresh = PREFERRED_REFRESH; - } else { - r->max_clock_khz = 0; - } -} - -static void -get_whitepoint_section(Uchar *c, struct whitePoints *wp) -{ - wp[0].white_x = WHITEX1; - wp[0].white_y = WHITEY1; - wp[1].white_x = WHITEX2; - wp[1].white_y = WHITEY2; - wp[0].index = WHITE_INDEX1; - wp[1].index = WHITE_INDEX2; - wp[0].white_gamma = WHITE_GAMMA1; - wp[1].white_gamma = WHITE_GAMMA2; -} - -static void -get_detailed_timing_section(Uchar *c, struct detailed_timings *r) -{ - r->clock = PIXEL_CLOCK; - r->h_active = H_ACTIVE; - r->h_blanking = H_BLANK; - r->v_active = V_ACTIVE; - r->v_blanking = V_BLANK; - r->h_sync_off = H_SYNC_OFF; - r->h_sync_width = H_SYNC_WIDTH; - r->v_sync_off = V_SYNC_OFF; - r->v_sync_width = V_SYNC_WIDTH; - r->h_size = H_SIZE; - r->v_size = V_SIZE; - r->h_border = H_BORDER; - r->v_border = V_BORDER; - r->interlaced = INTERLACED; - r->stereo = STEREO; - r->stereo_1 = STEREO1; - r->sync = SYNC_T; - r->misc = MISC; -} - -#define MAX_EDID_MINOR 4 - -static Bool -validate_version(int scrnIndex, struct edid_version *r) -{ - if (r->version != 1) { - xf86DrvMsg(scrnIndex, X_ERROR, "Unknown EDID version %d\n", - r->version); - return FALSE; - } - - if (r->revision > MAX_EDID_MINOR) - xf86DrvMsg(scrnIndex, X_WARNING, - "Assuming version 1.%d is compatible with 1.%d\n", - r->revision, MAX_EDID_MINOR); - - return TRUE; -} - -/* - * Returns true if HDMI, false if definitely not or unknown. - */ -Bool -xf86MonitorIsHDMI(xf86MonPtr mon) -{ - int i = 0, version, offset; - char *edid = NULL; - - if (!mon) - return FALSE; - - if (!(mon->flags & EDID_COMPLETE_RAWDATA)) - return FALSE; - - if (!mon->no_sections) - return FALSE; - - edid = (char *)mon->rawData; - if (!edid) - return FALSE; - - /* find the CEA extension block */ - for (i = 1; i <= mon->no_sections; i++) - if (edid[i * 128] == 0x02) - break; - if (i == mon->no_sections + 1) - return FALSE; - edid += (i * 128); - - version = edid[1]; - offset = edid[2]; - if (version < 3 || offset < 4) - return FALSE; - - /* walk the cea data blocks */ - for (i = 4; i < offset; i += (edid[i] & 0x1f) + 1) { - char *x = edid + i; - - /* find a vendor specific block */ - if ((x[0] & 0xe0) >> 5 == 0x03) { - int oui = (x[3] << 16) + (x[2] << 8) + x[1]; - - /* find the HDMI vendor OUI */ - if (oui == 0x000c03) - return TRUE; - } - } - - /* guess it's not HDMI after all */ - return FALSE; -} +/* + * Copyright 1998 by Egbert Eich + * Copyright 2007 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 (including the next + * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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. + * + * interpret_edid.c: interpret a primary EDID block + */ + +#ifdef HAVE_XORG_CONFIG_H +#include +#endif + +#include "misc.h" +#include "xf86.h" +#include "xf86_OSproc.h" +#define _PARSE_EDID_ +#include "xf86DDC.h" +#include + +static void get_vendor_section(Uchar *, struct vendor *); +static void get_version_section(Uchar *, struct edid_version *); +static void get_display_section(Uchar *, struct disp_features *, + struct edid_version *); +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 *); +static void get_dst_timing_section(Uchar *, struct std_timings *, + struct edid_version *); +static void get_monitor_ranges(Uchar *, struct monitor_ranges *); +static void get_whitepoint_section(Uchar *, struct whitePoints *); +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) +{ + struct monitor_ranges *ranges = NULL; + + /* + * max_clock is only encoded in EDID in tens of MHz, so occasionally we + * find a monitor claiming a max of 160 with a mode requiring 162, or + * similar. Strictly we should refuse to round up too far, but let's + * see how well this works. + */ + + /* 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 + * ratio and use that to fill in the feature section. + */ + if ((m->features.hsize == 16 && m->features.vsize == 9) || + (m->features.hsize == 16 && m->features.vsize == 10) || + (m->features.hsize == 4 && m->features.vsize == 3) || + (m->features.hsize == 5 && m->features.vsize == 4)) { + + 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 == 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 = (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); + } +} + +xf86MonPtr +xf86InterpretEDID(int scrnIndex, Uchar * block) +{ + xf86MonPtr m; + + if (!block) + return NULL; + if (!(m = xnfcalloc(sizeof(xf86Monitor), 1))) + return NULL; + m->scrnIndex = scrnIndex; + m->rawData = block; + + get_vendor_section(SECTION(VENDOR_SECTION, block), &m->vendor); + get_version_section(SECTION(VERSION_SECTION, block), &m->ver); + if (!validate_version(scrnIndex, &m->ver)) + goto error; + get_display_section(SECTION(DISPLAY_SECTION, block), &m->features, &m->ver); + get_established_timing_section(SECTION(ESTABLISHED_TIMING_SECTION, block), + &m->timings1); + get_std_timing_section(SECTION(STD_TIMING_SECTION, block), m->timings2, + &m->ver); + get_dt_md_section(SECTION(DET_TIMING_SECTION, block), &m->ver, m->det_mon); + m->no_sections = (int) *(char *) SECTION(NO_EDID, block); + + handle_edid_quirks(m); + encode_aspect_ratio(m); + + return m; + + error: + free(m); + 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) +{ + xf86MonPtr m; + + m = xf86InterpretEDID(scrnIndex, block); + if (!m) + return NULL; + + /* extension parse */ + + return m; +} + +static void +get_vendor_section(Uchar * c, struct vendor *r) +{ + r->name[0] = L1; + r->name[1] = L2; + r->name[2] = L3; + r->name[3] = '\0'; + + r->prod_id = PROD_ID; + r->serial = SERIAL_NO; + r->week = WEEK; + r->year = YEAR; +} + +static void +get_version_section(Uchar * c, struct edid_version *r) +{ + r->version = VERSION; + r->revision = REVISION; +} + +static void +get_display_section(Uchar * c, struct disp_features *r, struct edid_version *v) +{ + r->input_type = INPUT_TYPE; + if (!DIGITAL(r->input_type)) { + r->input_voltage = INPUT_VOLTAGE; + r->input_setup = SETUP; + r->input_sync = SYNC; + } + else if (v->revision == 2 || v->revision == 3) { + r->input_dfp = DFP; + } + else if (v->revision >= 4) { + r->input_bpc = BPC; + r->input_interface = DIGITAL_INTERFACE; + } + r->hsize = HSIZE_MAX; + r->vsize = VSIZE_MAX; + r->gamma = GAMMA; + r->dpms = DPMS; + r->display_type = DISPLAY_TYPE; + r->msc = MSC; + r->redx = REDX; + r->redy = REDY; + r->greenx = GREENX; + r->greeny = GREENY; + r->bluex = BLUEX; + r->bluey = BLUEY; + r->whitex = WHITEX; + r->whitey = WHITEY; +} + +static void +get_established_timing_section(Uchar * c, struct established_timings *r) +{ + r->t1 = T1; + r->t2 = T2; + r->t_manu = T_MANU; +} + +static void +get_cvt_timing_section(Uchar * c, struct cvt_timings *r) +{ + int i; + + for (i = 0; i < 4; i++) { + if (c[0] && c[1] && c[2]) { + r[i].height = (c[0] + ((c[1] & 0xF0) << 8) + 1) * 2; + switch (c[1] & 0xc0) { + case 0x00: + r[i].width = r[i].height * 4 / 3; + break; + case 0x40: + r[i].width = r[i].height * 16 / 9; + break; + case 0x80: + r[i].width = r[i].height * 16 / 10; + break; + case 0xc0: + r[i].width = r[i].height * 15 / 9; + break; + } + switch (c[2] & 0x60) { + case 0x00: + r[i].rate = 50; + break; + case 0x20: + r[i].rate = 60; + break; + case 0x40: + r[i].rate = 75; + break; + case 0x60: + r[i].rate = 85; + break; + } + r[i].rates = c[2] & 0x1f; + } + else { + return; + } + c += 3; + } +} + +static void +get_std_timing_section(Uchar * c, struct std_timings *r, struct edid_version *v) +{ + int i; + + for (i = 0; i < STD_TIMINGS; i++) { + if (VALID_TIMING) { + r[i].hsize = HSIZE1; + VSIZE1(r[i].vsize); + r[i].refresh = REFRESH_R; + r[i].id = STD_TIMING_ID; + } + else { + r[i].hsize = r[i].vsize = r[i].refresh = r[i].id = 0; + } + NEXT_STD_TIMING; + } +} + +static const unsigned char empty_block[18]; + +static void +fetch_detailed_block(Uchar * c, struct edid_version *ver, + struct detailed_monitor_section *det_mon) +{ + if (ver->version == 1 && ver->revision >= 1 && IS_MONITOR_DESC) { + 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->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; + } +} + +static void +copy_string(Uchar * c, Uchar * s) +{ + int i; + + c = c + 5; + for (i = 0; (i < 13 && *c != 0x0A); i++) + *(s++) = *(c++); + *s = 0; + while (i-- && (*--s == 0x20)) + *s = 0; +} + +static void +get_dst_timing_section(Uchar * c, struct std_timings *t, struct edid_version *v) +{ + int j; + + c = c + 5; + for (j = 0; j < 5; j++) { + t[j].hsize = HSIZE1; + VSIZE1(t[j].vsize); + t[j].refresh = REFRESH_R; + t[j].id = STD_TIMING_ID; + NEXT_STD_TIMING; + } +} + +static void +get_monitor_ranges(Uchar * c, struct monitor_ranges *r) +{ + r->min_v = MIN_V; + r->max_v = MAX_V; + r->min_h = MIN_H; + r->max_h = MAX_H; + r->max_clock = 0; + if (MAX_CLOCK != 0xff) /* is specified? */ + r->max_clock = MAX_CLOCK * 10 + 5; + if (HAVE_2ND_GTF) { + r->gtf_2nd_f = F_2ND_GTF; + r->gtf_2nd_c = C_2ND_GTF; + r->gtf_2nd_m = M_2ND_GTF; + r->gtf_2nd_k = K_2ND_GTF; + r->gtf_2nd_j = J_2ND_GTF; + } + else { + r->gtf_2nd_f = 0; + } + if (HAVE_CVT) { + r->max_clock_khz = MAX_CLOCK_KHZ; + r->max_clock = r->max_clock_khz / 1000; + r->maxwidth = MAXWIDTH; + r->supported_aspect = SUPPORTED_ASPECT; + r->preferred_aspect = PREFERRED_ASPECT; + r->supported_blanking = SUPPORTED_BLANKING; + r->supported_scaling = SUPPORTED_SCALING; + r->preferred_refresh = PREFERRED_REFRESH; + } + else { + r->max_clock_khz = 0; + } +} + +static void +get_whitepoint_section(Uchar * c, struct whitePoints *wp) +{ + wp[0].white_x = WHITEX1; + wp[0].white_y = WHITEY1; + wp[1].white_x = WHITEX2; + wp[1].white_y = WHITEY2; + wp[0].index = WHITE_INDEX1; + wp[1].index = WHITE_INDEX2; + wp[0].white_gamma = WHITE_GAMMA1; + wp[1].white_gamma = WHITE_GAMMA2; +} + +static void +get_detailed_timing_section(Uchar * c, struct detailed_timings *r) +{ + r->clock = PIXEL_CLOCK; + r->h_active = H_ACTIVE; + r->h_blanking = H_BLANK; + r->v_active = V_ACTIVE; + r->v_blanking = V_BLANK; + r->h_sync_off = H_SYNC_OFF; + r->h_sync_width = H_SYNC_WIDTH; + r->v_sync_off = V_SYNC_OFF; + r->v_sync_width = V_SYNC_WIDTH; + r->h_size = H_SIZE; + r->v_size = V_SIZE; + r->h_border = H_BORDER; + r->v_border = V_BORDER; + r->interlaced = INTERLACED; + r->stereo = STEREO; + r->stereo_1 = STEREO1; + r->sync = SYNC_T; + r->misc = MISC; +} + +#define MAX_EDID_MINOR 4 + +static Bool +validate_version(int scrnIndex, struct edid_version *r) +{ + if (r->version != 1) { + xf86DrvMsg(scrnIndex, X_ERROR, "Unknown EDID version %d\n", r->version); + return FALSE; + } + + if (r->revision > MAX_EDID_MINOR) + xf86DrvMsg(scrnIndex, X_WARNING, + "Assuming version 1.%d is compatible with 1.%d\n", + r->revision, MAX_EDID_MINOR); + + return TRUE; +} + +/* + * Returns true if HDMI, false if definitely not or unknown. + */ +Bool +xf86MonitorIsHDMI(xf86MonPtr mon) +{ + int i = 0, version, offset; + char *edid = NULL; + + if (!mon) + return FALSE; + + if (!(mon->flags & EDID_COMPLETE_RAWDATA)) + return FALSE; + + if (!mon->no_sections) + return FALSE; + + edid = (char *) mon->rawData; + if (!edid) + return FALSE; + + /* find the CEA extension block */ + for (i = 1; i <= mon->no_sections; i++) + if (edid[i * 128] == 0x02) + break; + if (i == mon->no_sections + 1) + return FALSE; + edid += (i * 128); + + version = edid[1]; + offset = edid[2]; + if (version < 3 || offset < 4) + return FALSE; + + /* walk the cea data blocks */ + for (i = 4; i < offset; i += (edid[i] & 0x1f) + 1) { + char *x = edid + i; + + /* find a vendor specific block */ + if ((x[0] & 0xe0) >> 5 == 0x03) { + int oui = (x[3] << 16) + (x[2] << 8) + x[1]; + + /* find the HDMI vendor OUI */ + if (oui == 0x000c03) + return TRUE; + } + } + + /* guess it's not HDMI after all */ + return FALSE; +} -- cgit v1.2.3