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authorBALATON Zoltan2019-06-20 12:55:23 +0200
committerGerd Hoffmann2019-06-28 10:49:36 +0200
commitc82c7336de58876862e6b4dccbda29e9240fd388 (patch)
tree2dddc67003af244d03210fea44ef87edf9bdebfc /hw/display/ati_dbg.c
parenti2c: Move bitbang_i2c.h to include/hw/i2c/ (diff)
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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},