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authorBALATON Zoltan <balaton@eik.bme.hu>2019-06-20 12:55:23 +0200
committerGerd Hoffmann <kraxel@redhat.com>2019-06-28 10:49:36 +0200
commitc82c7336de58876862e6b4dccbda29e9240fd388 (patch)
tree2dddc67003af244d03210fea44ef87edf9bdebfc /hw/display/ati_dbg.c
parentd718b7475b188dd47c10b24f8d2c46326b37094a (diff)
downloadfocaccia-qemu-c82c7336de58876862e6b4dccbda29e9240fd388.tar.gz
focaccia-qemu-c82c7336de58876862e6b4dccbda29e9240fd388.zip
ati-vga: Implement DDC and EDID info from monitor
This adds DDC support to ati-vga and connects i2c-ddc to it. This
allows at least MacOS with an ATI ndrv, Linux radeonfb and MorphOS to
get monitor EDID info (although MorphOS splash screen is not displayed
and radeonfb needs additional tables from vgabios-rv100). Xorg needs
additional support from VESA vgabios, it's missing INT10 0x4F15
function (see
https://gitlab.freedesktop.org/xorg/xserver/blob/master/hw/xfree86/vbe/vbe.c)
without which no DDC is available that also prevents loading the
accelerated X driver.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-id: 046ddebb7ec8db48c4e877ee444ec1c41e385a74.1561028123.git.balaton@eik.bme.hu

ati-vga: Clarify comment

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-id: 20190620195213.C54127461AE@zero.eik.bme.hu

ati-vga: Add DDC reg names for debug

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-id: 20190621181459.2F8207462AA@zero.eik.bme.hu
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'hw/display/ati_dbg.c')
-rw-r--r--hw/display/ati_dbg.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/hw/display/ati_dbg.c b/hw/display/ati_dbg.c
index b045f81d06..88b3a11315 100644
--- a/hw/display/ati_dbg.c
+++ b/hw/display/ati_dbg.c
@@ -19,6 +19,8 @@ static struct ati_regdesc ati_reg_names[] = {
     {"CRTC_GEN_CNTL", 0x0050},
     {"CRTC_EXT_CNTL", 0x0054},
     {"DAC_CNTL", 0x0058},
+    {"GPIO_VGA_DDC", 0x0060},
+    {"GPIO_DVI_DDC", 0x0064},
     {"GPIO_MONID", 0x0068},
     {"I2C_CNTL_1", 0x0094},
     {"PALETTE_INDEX", 0x00b0},