Attachment 120328 Details for Bug 93243 – [Patch] VIARestore function improvement

[Patch] VIARestore function improvement

0007-Made-improvements-to-VIARestore-function-inside-via_.patch (text/plain), 2.30 KB, created by Kevin Brace on 2015-12-04 06:15:03 UTC

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Creator: Kevin Brace

Created: 2015-12-04 06:15:03 UTC

Size: 2.30 KB

patch

obsolete

>From bae20ae42a78604027b8ebdc549ff2347c5d12e8 Mon Sep 17 00:00:00 2001
>From: Kevin Brace <kevinbrace@gmx.com>
>Date: Mon, 30 Nov 2015 03:59:14 -0800
>Subject: [PATCH 07/10] Made improvements to VIARestore function inside
> via_vgahw.c. CRTCER (CRT Controller Extended
> Registers) 0x6a, 0x6b, and 0x6c are now being
> restored. The previous patch was not restoring these
> registers at all, so it is now being restored to the
> values saved by VIASave function.
>
>---
> src/via_vgahw.c |   26 ++++++++++++++++++++++++++
> 1 file changed, 26 insertions(+)
>
>diff --git a/src/via_vgahw.c b/src/via_vgahw.c
>index b6aaf25..fc3189b 100644
>--- a/src/via_vgahw.c
>+++ b/src/via_vgahw.c
>@@ -165,7 +165,15 @@ void VIASave(ScrnInfoPtr pScrn)
>         DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Saving sequencer registers.\n"));
> 
> /* Unlock and save extended registers. */
>+/*
>         hwp->writeSeq(hwp, 0x10, 0x01);
>+*/
>+/* Sequencer Extended Registers */
>+/* Extended Register Unlock (0x3c5.0x10[0]) */
>+/* Set Extended Register Unlock register bit [0] to 1 in order to */
>+/* enable access to VIA Technologies graphics extended graphics */
>+/* features. */
>+    ViaSeqMask(hwp, 0x10, 0x01, 0x01);
> 
>         Regs->SR14 = hwp->readSeq(hwp, 0x14);
>         Regs->SR15 = hwp->readSeq(hwp, 0x15);
>@@ -574,7 +582,15 @@ void VIARestore(ScrnInfoPtr pScrn)
>     vgaHWProtect(pScrn, TRUE);
> 
>     /* Unlock extended registers. */
>+/*
>     hwp->writeSeq(hwp, 0x10, 0x01);
>+*/
>+/* Sequencer Extended Registers */
>+/* Extended Register Unlock (0x3c5.0x10[0]) */
>+/* Set Extended Register Unlock register bit [0] to 1 in order to */
>+/* enable access to VIA Technologies graphics extended graphics */
>+/* features. */
>+    ViaSeqMask(hwp, 0x10, 0x01, 0x01);
> 
>     /*=* CR6A, CR6B, CR6C must be reset before restoring
>          standard vga regs, or system will hang. *=*/
>@@ -1039,6 +1055,16 @@ void VIARestore(ScrnInfoPtr pScrn)
> 
>     }
> 
>+/* Restoring the secondary display if it is in use. */
>+    hwp->writeCrtc(hwp, 0x6c, Regs->EXCR[0x6c - 0x50]);
>+    hwp->writeCrtc(hwp, 0x6b, Regs->EXCR[0x6b - 0x50]);
>+
>+    hwp->writeCrtc(hwp, 0x6a, 0x00);
>+    ViaCrtcMask(hwp, 0x6a, Regs->EXCR[0x6a - 0x50], 0xbf);
>+    ViaCrtcMask(hwp, 0x6a, 0x40, 0x40);
>+
>+
>+
>     DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Finished restoring extended CRTC registers.\n"));
> 
> #ifdef DEBUG
>-- 
>1.7.9.5
>

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