configure.ac | 2 +-
src/via_display.c | 35 +++++++++++++++++++++++++++--------
2 files changed, 28 insertions(+), 9 deletions(-)
New commits:
commit 4450edfe85ebacb2d03202a212164cfaf4121006
Author: Kevin Brace <kevinbr...@gmx.com>
Date: Sat Aug 20 16:58:56 2016 -0700
Version bumped to 0.5.134
This version adds IGA1 > 2048 horizontal resolution support for
VX900 chipset.
Signed-off-by: Kevin Brace <kevinbr...@gmx.com>
diff --git a/configure.ac b/configure.ac
index 0ad8361..94898dd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -23,7 +23,7 @@
# Initialize Autoconf
AC_PREREQ(2.57)
AC_INIT([xf86-video-openchrome],
- [0.5.133],
+ [0.5.134],
[https://bugs.freedesktop.org/enter_bug.cgi?product=xorg&component=Driver/openchrome],
[xf86-video-openchrome])
commit cd19542df40afcbd2f85de41b514355df72c5c36
Author: Kevin Brace <kevinbr...@gmx.com>
Date: Sat Aug 20 16:50:00 2016 -0700
IGA1 > 2048 horizontal resolution support for VX900 chipset
Patrick Chen of VIA Technologies in December 2011 suggested that
VX900 chipset supports horizontal resolution > 2048, but no one
bothered to implement it for OpenChrome UMS code until now.
Suggested-by: Patrick Chen <patrickc...@via.com.tw>
Signed-off-by: Kevin Brace <kevinbr...@gmx.com>
diff --git a/src/via_display.c b/src/via_display.c
index 8a54f03..11ae1f2 100644
--- a/src/via_display.c
+++ b/src/via_display.c
@@ -1095,9 +1095,9 @@ viaIGA1SetDisplayRegister(ScrnInfoPtr pScrn,
DisplayModePtr mode)
/* Set IGA1 horizontal display end. */
- /* Due to IGA1 horizontal display end being only 8 bits wide,
- * the adjusted horizontal display end needs to be shifted by
- * 3 bit positions to the right.
+ /* Due to IGA1 horizontal display end being only 8 bits
+ * or 9 bits (for VX900 chipset) wide, the adjusted horizontal
+ * display end needs to be shifted by 3 bit positions to the right.
* In addition to that, this particular register requires the
* value to be 1 less than the actual value being written. */
DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO,
@@ -1107,11 +1107,17 @@ viaIGA1SetDisplayRegister(ScrnInfoPtr pScrn,
DisplayModePtr mode)
/* 3X5.01[7:0] - Horizontal Display End Bits [7:0] */
hwp->writeCrtc(hwp, 0x01, temp & 0xFF);
+ if (pVia->Chipset == VIA_VX900) {
+ /* 3X5.45[1] - Horizontal Display End Bit [8] */
+ ViaCrtcMask(hwp, 0x45, temp >> 7, 0x02);
+ }
+
/* Set IGA1 horizontal blank start. */
- /* Due to IGA1 horizontal blank start being only 8 bits wide,
- * the adjusted horizontal blank start needs to be shifted by
- * 3 bit positions to the right. */
+ /* Due to IGA1 horizontal blank start being only 8 bits or
+ * 9 bits (for VX900 chipset) wide, the adjusted horizontal
+ * blank start needs to be shifted by 3 bit positions to the
+ * right. */
DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO,
"IGA1 CrtcHBlankStart: %d\n", mode->CrtcHBlankStart));
temp = mode->CrtcHBlankStart >> 3;
@@ -1119,6 +1125,11 @@ viaIGA1SetDisplayRegister(ScrnInfoPtr pScrn,
DisplayModePtr mode)
/* 3X5.02[7:0] - Horizontal Blanking Start Bits [7:0] */
hwp->writeCrtc(hwp, 0x02, temp & 0xFF);
+ if (pVia->Chipset == VIA_VX900) {
+ /* 3X5.45[2] - Horizontal Blanking Start Bit [8] */
+ ViaCrtcMask(hwp, 0x45, temp >> 6, 0x04);
+ }
+
/* Set IGA1 horizontal blank end. */
/* After shifting horizontal blank end by 3 bit positions to the
@@ -1317,6 +1328,8 @@ viaIGA1SetDisplayRegister(ScrnInfoPtr pScrn,
DisplayModePtr mode)
static ModeStatus
viaIGA1ModeValid(ScrnInfoPtr pScrn, DisplayModePtr mode)
{
+ VIAPtr pVia = VIAPTR(pScrn);
+
DEBUG(xf86DrvMsg(pScrn->scrnIndex, X_INFO,
"Entered viaIGA1ModeValid.\n"));
@@ -1333,10 +1346,16 @@ viaIGA1ModeValid(ScrnInfoPtr pScrn, DisplayModePtr mode)
if (mode->CrtcHTotal > (4096 + ((1 << 3) * (5 - 1))))
return MODE_BAD_HVALUE;
- if (mode->CrtcHDisplay > 2048)
+ if (((pVia->Chipset != VIA_VX900)
+ && (mode->CrtcHDisplay > 2048))
+ || ((pVia->Chipset == VIA_VX900)
+ && (mode->CrtcHDisplay > 4096)))
return MODE_BAD_HVALUE;
- if (mode->CrtcHBlankStart > 2048)
+ if (((pVia->Chipset != VIA_VX900)
+ && (mode->CrtcHBlankStart > 2048))
+ || ((pVia->Chipset == VIA_VX900)
+ && (mode->CrtcHBlankStart > 4096)))
return MODE_BAD_HVALUE;
if ((mode->CrtcHBlankEnd - mode->CrtcHBlankStart) > 1025)
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