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Diffstat (limited to 'xorg-server/hw/xfree86/modes/xf86DisplayIDModes.c')
-rw-r--r--xorg-server/hw/xfree86/modes/xf86DisplayIDModes.c437
1 files changed, 437 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/modes/xf86DisplayIDModes.c b/xorg-server/hw/xfree86/modes/xf86DisplayIDModes.c
new file mode 100644
index 000000000..182d43e0e
--- /dev/null
+++ b/xorg-server/hw/xfree86/modes/xf86DisplayIDModes.c
@@ -0,0 +1,437 @@
+/*
+ * Copyright 2009 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
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * them 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 MERCHANTIBILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS 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.
+ *
+ * Authors:
+ * Adam Jackson <ajax@redhat.com>
+ */
+
+#include "xorg-config.h"
+#include "xf86.h"
+#include "xf86str.h"
+#include "edid.h"
+#include "xf86DDC.h"
+
+typedef void (*did_proc)(int scrnIndex, unsigned char *data, void *closure);
+
+#define DID_PRODUCT_ID 0x00
+#define DID_DISPLAY_PARAMETERS 0x01
+#define DID_COLOR_INFO 0x02
+#define DID_TIMING_1_DETAILED 0x03
+#define DID_TIMING_2_DETAILED 0x04
+#define DID_TIMING_3_SHORT 0x05
+#define DID_TIMING_4_DMT 0x06
+#define DID_TIMING_VESA 0x07
+#define DID_TIMING_CEA 0x08
+#define DID_TIMING_RANGE_LIMITS 0x09
+#define DID_PRODUCT_SERIAL 0x0A
+#define DID_ASCII_STRING 0x0B
+#define DID_DISPLAY_DEVICE 0x0C
+#define DID_POWER_SEQUENCING 0x0D
+#define DID_TRANSFER_INFO 0x0E
+#define DID_DISPLAY_INTERFACE 0x0F
+#define DID_STEREO 0x10
+#define DID_VENDOR 0x7F
+
+#define extract_le16(x, i) ((x[i+1] << 8) + (x[i]))
+#define extract_le24(x, i) ((x[i+2] << 16) + (x[i+1] << 8) + (x[i]))
+
+static DisplayModePtr
+modeCalloc(void)
+{
+ return xcalloc(1, sizeof(DisplayModeRec));
+}
+
+/*
+ * How awesome is it to have two detailed timing formats, neither of which
+ * are compatible with the format in EDID? So awesome.
+ */
+
+static void
+didDetailedTiming1(int i, unsigned char *x, MonPtr mon)
+{
+ DisplayModePtr m = modeCalloc();
+
+ if (!m)
+ return;
+
+ m->Clock = extract_le24(x, 0);
+
+ m->HDisplay = extract_le16(x, 4);
+ m->HSyncStart = m->HDisplay + (extract_le16(x, 8) & 0x7f);
+ m->HSyncEnd = m->HSyncStart + extract_le16(x, 10);
+ m->HTotal = m->HDisplay + extract_le16(x, 6);
+ m->Flags |= (x[9] & 0x80) ? V_PHSYNC : V_NHSYNC;
+
+ m->VDisplay = extract_le16(x, 12);
+ m->VSyncStart = m->VDisplay + (extract_le16(x, 16) & 0x7f);
+ m->VSyncEnd = m->VSyncStart + extract_le16(x, 18);
+ m->VTotal = m->VDisplay + extract_le16(x, 14);
+ m->Flags |= (x[17] & 0x80) ? V_PVSYNC : V_NVSYNC;
+
+ m->type = M_T_DRIVER;
+ if (x[3] & 0x80)
+ m->type |= M_T_PREFERRED;
+
+ /* XXX double check handling of this */
+ if (x[3] & 0x10)
+ m->Flags |= V_INTERLACE;
+
+ mon->Modes = xf86ModesAdd(mon->Modes, m);
+}
+
+/* XXX no sync bits. what to do? */
+static void
+didDetailedTiming2(int i, unsigned char *x, MonPtr mon)
+{
+ DisplayModePtr mode = modeCalloc();
+
+ if (!mode)
+ return;
+
+ mode->Clock = extract_le24(x, 0);
+
+ /* horiz sizes are in character cells, not pixels, hence * 8 */
+ mode->HDisplay = ((extract_le16(x, 4) & 0x01ff) + 1) * 8;
+ mode->HSyncStart = mode->HDisplay + (((x[6] & 0xf0) >> 4) + 1) * 8;
+ mode->HSyncEnd = mode->HSyncStart + ((x[6] & 0x0f) + 1) * 8;
+ mode->HTotal = mode->HDisplay + ((x[5] >> 1) + 1) * 8;
+
+ mode->VDisplay = extract_le16(x, 7) & 0x07ff;
+ mode->VSyncStart = mode->VDisplay + (x[10] >> 4) + 1;
+ mode->VSyncEnd = mode->VSyncStart + (x[10] & 0x0f) + 1;
+ mode->VTotal = mode->VDisplay + x[9];
+
+ mode->status = M_T_DRIVER;
+ if (x[3] & 0x80)
+ mode->status |= M_T_PREFERRED;
+
+ /* XXX double check handling of this */
+ if (x[3] & 0x10)
+ mode->Flags |= V_INTERLACE;
+
+ mon->Modes = xf86ModesAdd(mon->Modes, mode);
+}
+
+static void
+didShortTiming(int i, unsigned char *x, MonPtr mon)
+{
+ DisplayModePtr m;
+ int w, h, r;
+
+ w = (x[1] + 1) * 8;
+ switch (x[0] & 0x0f) {
+ case 0:
+ h = w;
+ break;
+ case 1:
+ h = (w * 4) / 5;
+ break;
+ case 2:
+ h = (w * 3) / 4;
+ break;
+ case 3:
+ h = (w * 9) / 15;
+ break;
+ case 4:
+ h = (w * 9) / 16;
+ break;
+ case 5:
+ h = (w * 10) / 16;
+ break;
+ default:
+ return;
+ }
+ r = (x[2] & 0x7f) + 1;
+
+ m = xf86CVTMode(w, h, r, !!(x[0] & 0x10), !!(x[2] & 0x80));
+
+ m->type = M_T_DRIVER;
+ if (x[0] & 0x80)
+ m->type |= M_T_PREFERRED;
+
+ mon->Modes = xf86ModesAdd(mon->Modes, m);
+}
+
+static void
+didDMTTiming(int i, unsigned char *x, void *closure)
+{
+ MonPtr mon = closure;
+
+ mon->Modes = xf86ModesAdd(mon->Modes,
+ xf86DuplicateMode(DMTModes + *x));
+}
+
+#define RB 1
+#define INT 2
+static const struct did_dmt {
+ short w, h, r, f;
+} did_dmt[] = {
+ /* byte 3 */
+ { 640, 350, 85, 0 },
+ { 640, 400, 85, 0 },
+ { 720, 400, 85, 0 },
+ { 640, 480, 60, 0 },
+ { 640, 480, 72, 0 },
+ { 640, 480, 75, 0 },
+ { 640, 480, 85, 0 },
+ { 800, 600, 56, 0 },
+ /* byte 4 */
+ { 800, 600, 60, 0 },
+ { 800, 600, 72, 0 },
+ { 800, 600, 75, 0 },
+ { 800, 600, 85, 0 },
+ { 800, 600, 120, RB },
+ { 848, 480, 60, 0 },
+ { 1024, 768, 43, INT },
+ { 1024, 768, 60, 0 },
+ /* byte 5 */
+ { 1024, 768, 70, 0 },
+ { 1024, 768, 75, 0 },
+ { 1024, 768, 85, 0 },
+ { 1024, 768, 120, RB },
+ { 1152, 864, 75, 0 },
+ { 1280, 768, 60, RB },
+ { 1280, 768, 60, 0 },
+ { 1280, 768, 75, 0 },
+ /* byte 6 */
+ { 1280, 768, 85, 0 },
+ { 1280, 768, 120, RB },
+ { 1280, 800, 60, RB },
+ { 1280, 800, 60, 0 },
+ { 1280, 800, 75, 0 },
+ { 1280, 800, 85, 0 },
+ { 1280, 800, 120, RB },
+ { 1280, 960, 60, 0 },
+ /* byte 7 */
+ { 1280, 960, 85, 0 },
+ { 1280, 960, 120, RB },
+ { 1280, 1024, 60, 0 },
+ { 1280, 1024, 75, 0 },
+ { 1280, 1024, 85, 0 },
+ { 1280, 1024, 120, RB },
+ { 1360, 768, 60, 0 },
+ { 1360, 768, 120, RB },
+ /* byte 8 */
+ { 1400, 1050, 60, RB },
+ { 1400, 1050, 60, 0 },
+ { 1400, 1050, 75, 0 },
+ { 1400, 1050, 85, 0 },
+ { 1400, 1050, 120, RB },
+ { 1440, 900, 60, RB },
+ { 1440, 900, 60, 0 },
+ { 1440, 900, 75, 0 },
+ /* byte 9 */
+ { 1440, 900, 85, 0 },
+ { 1440, 900, 120, RB },
+ { 1600, 1200, 60, 0 },
+ { 1600, 1200, 65, 0 },
+ { 1600, 1200, 70, 0 },
+ { 1600, 1200, 75, 0 },
+ { 1600, 1200, 85, 0 },
+ { 1600, 1200, 120, RB },
+ /* byte a */
+ { 1680, 1050, 60, RB },
+ { 1680, 1050, 60, 0 },
+ { 1680, 1050, 75, 0 },
+ { 1680, 1050, 85, 0 },
+ { 1680, 1050, 120, RB },
+ { 1792, 1344, 60, 0 },
+ { 1792, 1344, 75, 0 },
+ { 1792, 1344, 120, RB },
+ /* byte b */
+ { 1856, 1392, 60, 0 },
+ { 1856, 1392, 75, 0 },
+ { 1856, 1392, 120, RB },
+ { 1920, 1200, 60, RB },
+ { 1920, 1200, 60, 0 },
+ { 1920, 1200, 75, 0 },
+ { 1920, 1200, 85, 0 },
+ { 1920, 1200, 120, RB },
+ /* byte c */
+ { 1920, 1440, 60, 0 },
+ { 1920, 1440, 75, 0 },
+ { 1920, 1440, 120, RB },
+ { 2560, 1600, 60, RB },
+ { 2560, 1600, 60, 0 },
+ { 2560, 1600, 75, 0 },
+ { 2560, 1600, 85, 0 },
+ { 2560, 1600, 120, RB },
+};
+
+static void
+didVesaTiming(int scrn, unsigned char *x, MonPtr mon)
+{
+ int i, j;
+
+ x += 3;
+
+ for (i = 0; i < 10; i++)
+ for (j = 0; j < 8; j++)
+ if (x[i] & (1 << j)) {
+ const struct did_dmt *d = &(did_dmt[i * 8 + j]);
+ if (d->f == INT)
+ continue;
+ mon->Modes = xf86ModesAdd(mon->Modes,
+ FindDMTMode(d->w, d->h, d->r,
+ d->f == RB));
+ }
+
+}
+
+static void
+handleDisplayIDBlock(int scrnIndex, unsigned char *x, void *closure)
+{
+ MonPtr mon = closure;
+
+ switch (x[0]) {
+ case DID_DISPLAY_PARAMETERS:
+ /* w/h are in decimillimeters */
+ mon->widthmm = (extract_le16(x, 3) + 5) / 10;
+ mon->heightmm = (extract_le16(x, 5) + 5) / 10;
+ /* XXX pixel count, feature flags, gamma, aspect, color depth */
+ break;
+
+ case DID_TIMING_RANGE_LIMITS:
+ {
+ int n;
+
+ mon->maxPixClock = max(mon->maxPixClock, extract_le24(x, 6) * 10);
+
+ n = mon->nHsync++;
+ if (n < MAX_HSYNC) {
+ mon->hsync[n].lo = x[9];
+ mon->hsync[n].hi = x[10];
+ } else {
+ n = MAX_HSYNC;
+ }
+ n = mon->nVrefresh++;
+ if (n < MAX_VREFRESH) {
+ mon->vrefresh[n].lo = x[13];
+ mon->vrefresh[n].hi = x[14];
+ } else {
+ n = MAX_VREFRESH;
+ }
+ break;
+ }
+
+ case DID_TIMING_1_DETAILED:
+ {
+ int i;
+ for (i = 0; i < x[2]; i += 20)
+ didDetailedTiming1(scrnIndex, x + i + 3, mon);
+ break;
+ }
+
+ case DID_TIMING_2_DETAILED:
+ {
+ int i;
+ for (i = 0; i < x[2]; i += 11)
+ didDetailedTiming2(scrnIndex, x + i + 3, mon);
+ break;
+ }
+
+ case DID_TIMING_3_SHORT:
+ {
+ int i;
+ for (i = 0; i < x[2]; i += 3)
+ didShortTiming(scrnIndex, x + i + 3, mon);
+ break;
+ }
+
+ case DID_TIMING_4_DMT:
+ {
+ int i;
+ for (i = 0; i < x[2]; i++)
+ didDMTTiming(scrnIndex, x + i + 3, mon);
+ break;
+ }
+
+ case DID_TIMING_VESA:
+ didVesaTiming(scrnIndex, x, mon);
+ break;
+
+ /* XXX pixel format, ar, orientation, subpixel, dot pitch, bit depth */
+ case DID_DISPLAY_DEVICE:
+
+ /* XXX interface, links, color encoding, ss, drm */
+ case DID_DISPLAY_INTERFACE:
+
+ /* XXX stereo */
+ case DID_STEREO:
+
+ /* nothing interesting in these */
+ case DID_COLOR_INFO:
+ case DID_PRODUCT_SERIAL:
+ case DID_ASCII_STRING:
+ case DID_POWER_SEQUENCING:
+ case DID_TRANSFER_INFO:
+ case DID_VENDOR:
+ break;
+
+ /* warn about anything else */
+ default:
+ xf86DrvMsg(scrnIndex, X_WARNING,
+ "Unknown DisplayID block type %hx\n", x[0]);
+ break;
+ }
+}
+
+static void
+forEachDisplayIDBlock(int scrnIndex, unsigned char *did, did_proc proc,
+ void *closure)
+{
+ int num_extensions = did[3];
+ int section_size = did[1];
+ unsigned char *block;
+
+ do {
+ if ((did[0] & 0xf0) != 0x10) /* not 1.x, abort */
+ return;
+ /* XXX also, checksum */
+
+ block = did + 4;
+
+ while (section_size > 0) {
+ int block_size = (block[2] + 2);
+
+ proc(scrnIndex, block, closure);
+
+ section_size -= block_size;
+ block += block_size;
+ }
+
+ did += (did[1] + 5);
+ } while (num_extensions--);
+}
+
+/*
+ * Fill out MonPtr with xf86MonPtr information.
+ */
+void
+xf86DisplayIDMonitorSet(int scrnIndex, MonPtr mon, xf86MonPtr DDC)
+{
+ if (!mon || !DDC)
+ return;
+
+ mon->DDC = DDC;
+
+ forEachDisplayIDBlock(scrnIndex, DDC->rawData, handleDisplayIDBlock, mon);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 03:02:06 +0000