path: root/hw/xfree86/ddc/print_edid.c

/*
 * Copyright 1998 by Egbert Eich <Egbert.Eich@Physik.TU-Darmstadt.DE>
 * 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.
 *
 * print_edid.c: print out all information retrieved from display device
 */

#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif

/* XXX kinda gross */
#define _PARSE_EDID_

#include "misc.h"
#include "xf86.h"
#include "xf86_OSproc.h"
#include "xf86DDC.h"
#include "edid.h"

#define EDID_WIDTH	16

static void
print_vendor(int scrnIndex, struct vendor *c)
{
    xf86DrvMsg(scrnIndex, X_INFO, "Manufacturer: %s  Model: %x  Serial#: %u\n",
               (char *) &c->name, c->prod_id, c->serial);
    xf86DrvMsg(scrnIndex, X_INFO, "Year: %u  Week: %u\n", c->year, c->week);
}

static void
print_version(int scrnIndex, struct edid_version *c)
{
    xf86DrvMsg(scrnIndex, X_INFO, "EDID Version: %u.%u\n", c->version,
               c->revision);
}

static const char *digital_interfaces[] = {
    "undefined",
    "DVI",
    "HDMI-a",
    "HDMI-b",
    "MDDI",
    "DisplayPort",
    "unknown"
};

static void
print_input_features(int scrnIndex, struct disp_features *c,
                     struct edid_version *v)
{
    if (DIGITAL(c->input_type)) {
        xf86DrvMsg(scrnIndex, X_INFO, "Digital Display Input\n");
        if (v->revision == 2 || v->revision == 3) {
            if (DFP1(c->input_dfp))
                xf86DrvMsg(scrnIndex, X_INFO, "DFP 1.x compatible TMDS\n");
        }
        else if (v->revision >= 4) {
            int interface = c->input_interface;
            int bpc = c->input_bpc;

            if (interface > 6)
                interface = 6;  /* unknown */
            if (bpc == 0 || bpc == 7)
                xf86DrvMsg(scrnIndex, X_INFO, "Undefined color depth\n");
            else
                xf86DrvMsg(scrnIndex, X_INFO, "%d bits per channel\n",
                           bpc * 2 + 4);
            xf86DrvMsg(scrnIndex, X_INFO, "Digital interface is %s\n",
                       digital_interfaces[interface]);
        }
    }
    else {
        xf86DrvMsg(scrnIndex, X_INFO, "Analog Display Input,  ");
        xf86ErrorF("Input Voltage Level: ");
        switch (c->input_voltage) {
        case V070:
            xf86ErrorF("0.700/0.300 V\n");
            break;
        case V071:
            xf86ErrorF("0.714/0.286 V\n");
            break;
        case V100:
            xf86ErrorF("1.000/0.400 V\n");
            break;
        case V007:
            xf86ErrorF("0.700/0.700 V\n");
            break;
        default:
            xf86ErrorF("undefined\n");
        }
        if (SIG_SETUP(c->input_setup))
            xf86DrvMsg(scrnIndex, X_INFO, "Signal levels configurable\n");
        xf86DrvMsg(scrnIndex, X_INFO, "Sync:");
        if (SEP_SYNC(c->input_sync))
            xf86ErrorF("  Separate");
        if (COMP_SYNC(c->input_sync))
            xf86ErrorF("  Composite");
        if (SYNC_O_GREEN(c->input_sync))
            xf86ErrorF("  SyncOnGreen");
        if (SYNC_SERR(c->input_sync))
            xf86ErrorF("Serration on. "
                       "V.Sync Pulse req. if CompSync or SyncOnGreen\n");
        else
            xf86ErrorF("\n");
    }
}

static void
print_dpms_features(int scrnIndex, struct disp_features *c,
                    struct edid_version *v)
{
    if (c->dpms) {
        xf86DrvMsg(scrnIndex, X_INFO, "DPMS capabilities:");
        if (DPMS_STANDBY(c->dpms))
            xf86ErrorF(" StandBy");
        if (DPMS_SUSPEND(c->dpms))
            xf86ErrorF(" Suspend");
        if (DPMS_OFF(c->dpms))
            xf86ErrorF(" Off");
    }
    else
        xf86DrvMsg(scrnIndex, X_INFO, "No DPMS capabilities specified");
    if (!c->input_type) {       /* analog */
        switch (c->display_type) {
        case DISP_MONO:
            xf86ErrorF("; Monochrome/GrayScale Display\n");
            break;
        case DISP_RGB:
            xf86ErrorF("; RGB/Color Display\n");
            break;
        case DISP_MULTCOLOR:
            xf86ErrorF("; Non RGB Multicolor Display\n");
            break;
        default:
            xf86ErrorF("\n");
            break;
        }
    }
    else {
        int enc = c->display_type;

        xf86ErrorF("\n");
        xf86DrvMsg(scrnIndex, X_INFO, "Supported color encodings: "
                   "RGB 4:4:4 %s%s\n",
                   enc & DISP_YCRCB444 ? "YCrCb 4:4:4 " : "",
                   enc & DISP_YCRCB422 ? "YCrCb 4:2:2" : "");
    }

    if (STD_COLOR_SPACE(c->msc))
        xf86DrvMsg(scrnIndex, X_INFO,
                   "Default color space is primary color space\n");

    if (PREFERRED_TIMING_MODE(c->msc) || v->revision >= 4) {
        xf86DrvMsg(scrnIndex, X_INFO,
                   "First detailed timing is preferred mode\n");
        if (v->revision >= 4)
            xf86DrvMsg(scrnIndex, X_INFO,
                       "Preferred mode is native pixel format and refresh rate\n");
    }
    else if (v->revision == 3) {
        xf86DrvMsg(scrnIndex, X_INFO,
                   "First detailed timing not preferred "
                   "mode in violation of standard!\n");
    }

    if (v->revision >= 4) {
        if (GFT_SUPPORTED(c->msc)) {
            xf86DrvMsg(scrnIndex, X_INFO, "Display is continuous-frequency\n");
        }
    }
    else {
        if (GFT_SUPPORTED(c->msc))
            xf86DrvMsg(scrnIndex, X_INFO, "GTF timings supported\n");
    }
}

static void
print_whitepoint(int scrnIndex, struct disp_features *disp)
{
    xf86DrvMsg(scrnIndex, X_INFO, "redX: %.3f redY: %.3f   ",
               disp->redx, disp->redy);
    xf86ErrorF("greenX: %.3f greenY: %.3f\n", disp->greenx, disp->greeny);
    xf86DrvMsg(scrnIndex, X_INFO, "blueX: %.3f blueY: %.3f   ",
               disp->bluex, disp->bluey);
    xf86ErrorF("whiteX: %.3f whiteY: %.3f\n", disp->whitex, disp->whitey);
}

static void
print_display(int scrnIndex, struct disp_features *disp, struct edid_version *v)
{
    print_input_features(scrnIndex, disp, v);
    if (disp->hsize && disp->vsize) {
        xf86DrvMsg(scrnIndex, X_INFO, "Max Image Size [cm]: ");
        xf86ErrorF("horiz.: %i  ", disp->hsize);
        xf86ErrorF("vert.: %i\n", disp->vsize);
    }
    else if (v->revision >= 4 && (disp->hsize || disp->vsize)) {
        if (disp->hsize)
            xf86DrvMsg(scrnIndex, X_INFO, "Aspect ratio: %.2f (landscape)\n",
                       (disp->hsize + 99) / 100.0);
        if (disp->vsize)
            xf86DrvMsg(scrnIndex, X_INFO, "Aspect ratio: %.2f (portrait)\n",
                       100.0 / (float) (disp->vsize + 99));

    }
    else {
        xf86DrvMsg(scrnIndex, X_INFO, "Indeterminate output size\n");
    }

    if (!disp->gamma && v->revision >= 1.4)
        xf86DrvMsg(scrnIndex, X_INFO, "Gamma defined in extension block\n");
    else
        xf86DrvMsg(scrnIndex, X_INFO, "Gamma: %.2f\n", disp->gamma);

    print_dpms_features(scrnIndex, disp, v);
    print_whitepoint(scrnIndex, disp);
}

static void
print_established_timings(int scrnIndex, struct established_timings *t)
{
    unsigned char c;

    if (t->t1 || t->t2 || t->t_manu)
        xf86DrvMsg(scrnIndex, X_INFO, "Supported established timings:\n");
    c = t->t1;
    if (c & 0x80)
        xf86DrvMsg(scrnIndex, X_INFO, "720x400@70Hz\n");
    if (c & 0x40)
        xf86DrvMsg(scrnIndex, X_INFO, "720x400@88Hz\n");
    if (c & 0x20)
        xf86DrvMsg(scrnIndex, X_INFO, "640x480@60Hz\n");
    if (c & 0x10)
        xf86DrvMsg(scrnIndex, X_INFO, "640x480@67Hz\n");
    if (c & 0x08)
        xf86DrvMsg(scrnIndex, X_INFO, "640x480@72Hz\n");
    if (c & 0x04)
        xf86DrvMsg(scrnIndex, X_INFO, "640x480@75Hz\n");
    if (c & 0x02)
        xf86DrvMsg(scrnIndex, X_INFO, "800x600@56Hz\n");
    if (c & 0x01)
        xf86DrvMsg(scrnIndex, X_INFO, "800x600@60Hz\n");
    c = t->t2;
    if (c & 0x80)
        xf86DrvMsg(scrnIndex, X_INFO, "800x600@72Hz\n");
    if (c & 0x40)
        xf86DrvMsg(scrnIndex, X_INFO, "800x600@75Hz\n");
    if (c & 0x20)
        xf86DrvMsg(scrnIndex, X_INFO, "832x624@75Hz\n");
    if (c & 0x10)
        xf86DrvMsg(scrnIndex, X_INFO, "1024x768@87Hz (interlaced)\n");
    if (c & 0x08)
        xf86DrvMsg(scrnIndex, X_INFO, "1024x768@60Hz\n");
    if (c & 0x04)
        xf86DrvMsg(scrnIndex, X_INFO, "1024x768@70Hz\n");
    if (c & 0x02)
        xf86DrvMsg(scrnIndex, X_INFO, "1024x768@75Hz\n");
    if (c & 0x01)
        xf86DrvMsg(scrnIndex, X_INFO, "1280x1024@75Hz\n");
    c = t->t_manu;
    if (c & 0x80)
        xf86DrvMsg(scrnIndex, X_INFO, "1152x864@75Hz\n");
    xf86DrvMsg(scrnIndex, X_INFO, "Manufacturer's mask: %X\n", c & 0x7F);
}

static void
print_std_timings(int scrnIndex, struct std_timings *t)
{
    int i;
    char done = 0;

    for (i = 0; i < STD_TIMINGS; i++) {
        if (t[i].hsize > 256) { /* sanity check */
            if (!done) {
                xf86DrvMsg(scrnIndex, X_INFO, "Supported standard timings:\n");
                done = 1;
            }
            xf86DrvMsg(scrnIndex, X_INFO,
                       "#%i: hsize: %i  vsize %i  refresh: %i  vid: %i\n",
                       i, t[i].hsize, t[i].vsize, t[i].refresh, t[i].id);
        }
    }
}

static void
print_cvt_timings(int si, struct cvt_timings *t)
{
    int i;

    for (i = 0; i < 4; i++) {
        if (t[i].height) {
            xf86DrvMsg(si, X_INFO, "%dx%d @ %s%s%s%s%s Hz\n",
                       t[i].width, t[i].height,
                       t[i].rates & 0x10 ? "50," : "",
                       t[i].rates & 0x08 ? "60," : "",
                       t[i].rates & 0x04 ? "75," : "",
                       t[i].rates & 0x02 ? "85," : "",
                       t[i].rates & 0x01 ? "60RB" : "");
        }
        else
            break;
    }
}

static void
print_detailed_timings(int scrnIndex, struct detailed_timings *t)
{

    if (t->clock > 15000000) {  /* sanity check */
        xf86DrvMsg(scrnIndex, X_INFO, "Supported detailed timing:\n");
        xf86DrvMsg(scrnIndex, X_INFO, "clock: %.1f MHz   ",
                   t->clock / 1000000.0);
        xf86ErrorF("Image Size:  %i x %i mm\n", t->h_size, t->v_size);
        xf86DrvMsg(scrnIndex, X_INFO,
                   "h_active: %i  h_sync: %i  h_sync_end %i h_blank_end %i ",
                   t->h_active, t->h_sync_off + t->h_active,
                   t->h_sync_off + t->h_sync_width + t->h_active,
                   t->h_active + t->h_blanking);
        xf86ErrorF("h_border: %i\n", t->h_border);
        xf86DrvMsg(scrnIndex, X_INFO,
                   "v_active: %i  v_sync: %i  v_sync_end %i v_blanking: %i ",
                   t->v_active, t->v_sync_off + t->v_active,
                   t->v_sync_off + t->v_sync_width + t->v_active,
                   t->v_active + t->v_blanking);
        xf86ErrorF("v_border: %i\n", t->v_border);
        if (IS_STEREO(t->stereo)) {
            xf86DrvMsg(scrnIndex, X_INFO, "Stereo: ");
            if (IS_RIGHT_STEREO(t->stereo)) {
                if (!t->stereo_1)
                    xf86ErrorF("right channel on sync\n");
                else
                    xf86ErrorF("left channel on sync\n");
            }
            else if (IS_LEFT_STEREO(t->stereo)) {
                if (!t->stereo_1)
                    xf86ErrorF("right channel on even line\n");
                else
                    xf86ErrorF("left channel on evel line\n");
            }
            if (IS_4WAY_STEREO(t->stereo)) {
                if (!t->stereo_1)
                    xf86ErrorF("4-way interleaved\n");
                else
                    xf86ErrorF("side-by-side interleaved");
            }
        }
    }
}

/* This function handle all detailed patchs,
 * including EDID and EDID-extension
 */
struct det_print_parameter {
    xf86MonPtr m;
    int index;
    ddc_quirk_t quirks;
};

static void
handle_detailed_print(struct detailed_monitor_section *det_mon, void *data)
{
    int j, scrnIndex;
    struct det_print_parameter *p;

    p = (struct det_print_parameter *) data;
    scrnIndex = p->m->scrnIndex;
    xf86DetTimingApplyQuirks(det_mon, p->quirks,
                             p->m->features.hsize, p->m->features.vsize);

    switch (det_mon->type) {
    case DT:
        print_detailed_timings(scrnIndex, &det_mon->section.d_timings);
        break;
    case DS_SERIAL:
        xf86DrvMsg(scrnIndex, X_INFO, "Serial No: %s\n",
                   det_mon->section.serial);
        break;
    case DS_ASCII_STR:
        xf86DrvMsg(scrnIndex, X_INFO, " %s\n", det_mon->section.ascii_data);
        break;
    case DS_NAME:
        xf86DrvMsg(scrnIndex, X_INFO, "Monitor name: %s\n",
                   det_mon->section.name);
        break;
    case DS_RANGES:
    {
        struct monitor_ranges *r = &det_mon->section.ranges;

        xf86DrvMsg(scrnIndex, X_INFO,
                   "Ranges: V min: %i V max: %i Hz, H min: %i H max: %i kHz,",
                   r->min_v, r->max_v, r->min_h, r->max_h);
        if (r->max_clock_khz != 0) {
            xf86ErrorF(" PixClock max %i kHz\n", r->max_clock_khz);
            if (r->maxwidth)
                xf86DrvMsg(scrnIndex, X_INFO, "Maximum pixel width: %d\n",
                           r->maxwidth);
            xf86DrvMsg(scrnIndex, X_INFO, "Supported aspect ratios:");
            if (r->supported_aspect & SUPPORTED_ASPECT_4_3)
                xf86ErrorF(" 4:3%s",
                           r->preferred_aspect ==
                           PREFERRED_ASPECT_4_3 ? "*" : "");
            if (r->supported_aspect & SUPPORTED_ASPECT_16_9)
                xf86ErrorF(" 16:9%s",
                           r->preferred_aspect ==
                           PREFERRED_ASPECT_16_9 ? "*" : "");
            if (r->supported_aspect & SUPPORTED_ASPECT_16_10)
                xf86ErrorF(" 16:10%s",
                           r->preferred_aspect ==
                           PREFERRED_ASPECT_16_10 ? "*" : "");
            if (r->supported_aspect & SUPPORTED_ASPECT_5_4)
                xf86ErrorF(" 5:4%s",
                           r->preferred_aspect ==
                           PREFERRED_ASPECT_5_4 ? "*" : "");
            if (r->supported_aspect & SUPPORTED_ASPECT_15_9)
                xf86ErrorF(" 15:9%s",
                           r->preferred_aspect ==
                           PREFERRED_ASPECT_15_9 ? "*" : "");
            xf86ErrorF("\n");
            xf86DrvMsg(scrnIndex, X_INFO, "Supported blankings:");
            if (r->supported_blanking & CVT_STANDARD)
                xf86ErrorF(" standard");
            if (r->supported_blanking & CVT_REDUCED)
                xf86ErrorF(" reduced");
            xf86ErrorF("\n");
            xf86DrvMsg(scrnIndex, X_INFO, "Supported scalings:");
            if (r->supported_scaling & SCALING_HSHRINK)
                xf86ErrorF(" hshrink");
            if (r->supported_scaling & SCALING_HSTRETCH)
                xf86ErrorF(" hstretch");
            if (r->supported_scaling & SCALING_VSHRINK)
                xf86ErrorF(" vshrink");
            if (r->supported_scaling & SCALING_VSTRETCH)
                xf86ErrorF(" vstretch");
            xf86ErrorF("\n");
            if (r->preferred_refresh)
                xf86DrvMsg(scrnIndex, X_INFO, "Preferred refresh rate: %d\n",
                           r->preferred_refresh);
            else
                xf86DrvMsg(scrnIndex, X_INFO, "Buggy monitor, no preferred "
                           "refresh rate given\n");
        }
        else if (r->max_clock != 0) {
            xf86ErrorF(" PixClock max %i MHz\n", r->max_clock);
        }
        else {
            xf86ErrorF("\n");
        }
        if (r->gtf_2nd_f > 0)
            xf86DrvMsg(scrnIndex, X_INFO, " 2nd GTF parameters: f: %i kHz "
                       "c: %i m: %i k %i j %i\n", r->gtf_2nd_f,
                       r->gtf_2nd_c, r->gtf_2nd_m, r->gtf_2nd_k, r->gtf_2nd_j);
        break;
    }
    case DS_STD_TIMINGS:
        for (j = 0; j < 5; j++)
            xf86DrvMsg(scrnIndex, X_INFO,
                       "#%i: hsize: %i  vsize %i  refresh: %i  "
                       "vid: %i\n", p->index, det_mon->section.std_t[j].hsize,
                       det_mon->section.std_t[j].vsize,
                       det_mon->section.std_t[j].refresh,
                       det_mon->section.std_t[j].id);
        break;
    case DS_WHITE_P:
        for (j = 0; j < 2; j++)
            if (det_mon->section.wp[j].index != 0)
                xf86DrvMsg(scrnIndex, X_INFO,
                           "White point %i: whiteX: %f, whiteY: %f; gamma: %f\n",
                           det_mon->section.wp[j].index,
                           det_mon->section.wp[j].white_x,
                           det_mon->section.wp[j].white_y,
                           det_mon->section.wp[j].white_gamma);
        break;
    case DS_CMD:
        xf86DrvMsg(scrnIndex, X_INFO, "Color management data: (not decoded)\n");
        break;
    case DS_CVT:
        xf86DrvMsg(scrnIndex, X_INFO, "CVT 3-byte-code modes:\n");
        print_cvt_timings(scrnIndex, det_mon->section.cvt);
        break;
    case DS_EST_III:
        xf86DrvMsg(scrnIndex, X_INFO,
                   "Established timings III: (not decoded)\n");
        break;
    case DS_DUMMY:
    default:
        break;
    }
    if (det_mon->type >= DS_VENDOR && det_mon->type <= DS_VENDOR_MAX) {
        xf86DrvMsg(scrnIndex, X_INFO,
                   "Unknown vendor-specific block %hx\n",
                   det_mon->type - DS_VENDOR);
    }

    p->index = p->index + 1;
}

static void
print_number_sections(int scrnIndex, int num)
{
    if (num)
        xf86DrvMsg(scrnIndex, X_INFO, "Number of EDID sections to follow: %i\n",
                   num);
}

xf86MonPtr
xf86PrintEDID(xf86MonPtr m)
{
    CARD16 i, j, n;
    char buf[EDID_WIDTH * 2 + 1];
    struct det_print_parameter p;

    if (!m)
        return NULL;

    print_vendor(m->scrnIndex, &m->vendor);
    print_version(m->scrnIndex, &m->ver);
    print_display(m->scrnIndex, &m->features, &m->ver);
    print_established_timings(m->scrnIndex, &m->timings1);
    print_std_timings(m->scrnIndex, m->timings2);
    p.m = m;
    p.index = 0;
    p.quirks = xf86DDCDetectQuirks(m->scrnIndex, m, FALSE);
    xf86ForEachDetailedBlock(m, handle_detailed_print, &p);
    print_number_sections(m->scrnIndex, m->no_sections);

    /* extension block section stuff */

    xf86DrvMsg(m->scrnIndex, X_INFO, "EDID (in hex):\n");

    n = 128;
    if (m->flags & EDID_COMPLETE_RAWDATA)
        n += m->no_sections * 128;

    for (i = 0; i < n; i += j) {
        for (j = 0; j < EDID_WIDTH; ++j) {
            sprintf(&buf[j * 2], "%02x", m->rawData[i + j]);
        }
        xf86DrvMsg(m->scrnIndex, X_INFO, "\t%s\n", buf);
    }

    return m;
}