[PATCH xf86-video-i128] Better dealing with 1600SW panel.
Matěj Cepl
mcepl at redhat.com
Fri Aug 12 12:46:38 PDT 2011
From: Adam Jackson <ajax at redhat.com>
Attempt to force the sync ranges correctly when we detect a 1600SW panel
but don't get EDID info from it.
Also fill in maxPixClock and synthesize the appropriate modes when we
don't get DDC.
Signed-off-by: Matěj Cepl <mcepl at redhat.com>
---
src/i128_driver.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 51 insertions(+), 0 deletions(-)
diff --git a/src/i128_driver.c b/src/i128_driver.c
index 903a3a8..fcb66e9 100644
--- a/src/i128_driver.c
+++ b/src/i128_driver.c
@@ -414,6 +414,45 @@ I128AvailableOptions(int chipid, int busid)
return I128Options;
}
+#define MODEPREFIX(name) NULL, NULL, name, 0, M_T_DRIVER
+#define MODESUFFIX 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,FALSE,FALSE,0,NULL,0,0.0,0.0
+
+static DisplayModeRec sgi1600sw_modes[] = {
+ { MODEPREFIX("1600x1024"), 103125, 1600, 1600, 1656, 1664, 0,
+ 1024, 1024, 1029, 1030, 0,
+ V_PHSYNC | V_PVSYNC, MODESUFFIX },
+ { MODEPREFIX("800x512"), 54375, 800, 800, 840, 848, 0,
+ 512, 512, 514, 515, 0,
+ V_PHSYNC | V_PVSYNC | V_DBLSCAN, MODESUFFIX }
+};
+
+static void
+add1600SWModes(ScrnInfoPtr pScrn)
+{
+ DisplayModePtr modes;
+ int hskew = 0;
+
+ modes = xnfcalloc(2, sizeof(*modes));
+
+ memcpy(modes, sgi1600sw_modes, 2 * sizeof(*modes));
+
+ switch (pScrn->bitsPerPixel) {
+ case 8:
+ hskew = 1; break;
+ case 16:
+ hskew = 5; break;
+ case 24: case 32:
+ hskew = 7; break;
+ default: break;
+ }
+
+ modes[0].HSkew = modes[1].HSkew = hskew;
+
+ modes[0].next = &modes[1];
+ modes[1].next = pScrn->monitor->Modes;
+
+ pScrn->monitor->Modes = modes;
+}
/* Mandatory
*
@@ -993,6 +1032,18 @@ I128PreInit(ScrnInfoPtr pScrn, int flags)
xf86DrvMsg(pScrn->scrnIndex, X_CONFIG,
"Digital flat panel forced\n");
+ if (pI128->FlatPanel && !mon) {
+ /* Since DDC can be unreliable, jam in known 1600SW data */
+ pScrn->monitor->nHsync = 1;
+ pScrn->monitor->hsync[0].lo = 30.0;
+ pScrn->monitor->hsync[0].hi = 72.0;
+ pScrn->monitor->nVrefresh = 1;
+ pScrn->monitor->vrefresh[0].lo = 58;
+ pScrn->monitor->vrefresh[0].hi = 62;
+ pScrn->monitor->maxPixClock = 104 * 1000;
+ add1600SWModes(pScrn);
+ }
+
xf86DrvMsg(pScrn->scrnIndex, X_PROBED,
"Using SilverHammer programmable clock (MCLK %1.3f MHz)\n",
mclk / 1000.0);
--
1.7.6
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