diff options
Diffstat (limited to 'hw/xfree86/ddc/interpret_edid.c')
| -rw-r--r-- | hw/xfree86/ddc/interpret_edid.c | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/hw/xfree86/ddc/interpret_edid.c b/hw/xfree86/ddc/interpret_edid.c new file mode 100644 index 000000000..c0092aed9 --- /dev/null +++ b/hw/xfree86/ddc/interpret_edid.c @@ -0,0 +1,226 @@ +/* $XFree86: xc/programs/Xserver/hw/xfree86/ddc/interpret_edid.c,v 1.8 2000/07/13 21:31:37 tsi Exp $ */ + +/* interpret_edid.c: interpret a primary EDID block + * + * Copyright 1998 by Egbert Eich <Egbert.Eich@Physik.TU-Darmstadt.DE> + */ +#include "misc.h" +#include "xf86.h" +#include "xf86_ansic.h" +#include "xf86_OSproc.h" +#define _PARSE_EDID_ +#include "xf86DDC.h" + +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 *); +static void get_established_timing_section(Uchar*, struct established_timings *); +static void get_std_timing_section(Uchar*, struct std_timings *); +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 *); +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 *); + +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); + get_display_section(SECTION(DISPLAY_SECTION,block),&m->features); + get_established_timing_section(SECTION(ESTABLISHED_TIMING_SECTION,block), + &m->timings1); + get_std_timing_section(SECTION(STD_TIMING_SECTION,block),m->timings2); + get_dt_md_section(SECTION(DET_TIMING_SECTION,block),&m->ver, m->det_mon); + m->no_sections = (int)*(char *)SECTION(NO_EDID,block); + 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) +{ + r->input_type = INPUT_TYPE; + r->input_voltage = INPUT_VOLTAGE; + r->input_setup = SETUP; + r->input_sync = SYNC; + 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_std_timing_section(Uchar *c, struct std_timings *r) +{ + int i; + + for (i=0;i<STD_TIMINGS;i++){ + r[i].hsize = HSIZE1; + VSIZE1(r[i].vsize); + r[i].refresh = REFRESH_R; + r[i].id = STD_TIMING_ID; + NEXT_STD_TIMING; + } +} + +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++) { + 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); + break; + } + } else { + det_mon[i].type = DT; + get_detailed_timing_section(c,&det_mon[i].section.d_timings); + } + 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) +{ + 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 = MAX_CLOCK * 10; +} + +static void +get_whitepoint_section(Uchar *c, struct whitePoints *wp) +{ + wp[1].white_x = WHITEX1; + wp[1].white_y = WHITEY1; + wp[2].white_x = WHITEX2; + wp[2].white_y = WHITEY2; + wp[1].index = WHITE_INDEX1; + wp[2].index = WHITE_INDEX2; + wp[1].white_gamma = WHITE_GAMMA1; + wp[2].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->sync = SYNC_T; + r->misc = MISC; +} + + |