[haiku-commits] haiku: hrev43327 - src/add-ons/accelerants/radeon_hd

From: kallisti5@xxxxxxxxxxx
To: haiku-commits@xxxxxxxxxxxxx
Date: Sun, 27 Nov 2011 00:36:09 +0100 (CET)
hrev43327 adds 1 changeset to branch 'master'
old head: f1a3316b9606a67fa38053682691fa971b9baa87
new head: 54fda1c6dfe5f9b76df5c0da2dbffbe591699a67

----------------------------------------------------------------------------

2 files changed, 79 insertions(+), 0 deletions(-)
src/add-ons/accelerants/radeon_hd/gpu.cpp |   77 +++++++++++++++++++++++++
src/add-ons/accelerants/radeon_hd/gpu.h   |    2 +

############################################################################

Revision:    hrev43327
Commit:      54fda1c6dfe5f9b76df5c0da2dbffbe591699a67
URL:         http://cgit.haiku-os.org/haiku/commit/?id=54fda1c
Author:      Alexander von Gluck IV <kallisti5@xxxxxxxxxxx>
Date:        Sat Nov 26 23:35:33 2011 UTC

Enhance lvds laptop panel support

* if an edid request for LVDS panel is detected, we now
  return true and the VESA edid info.
* add #if 0'ed function to pull prefered timing info from atombios
  on LVDS panels, still need to generate a fake EDID with this.
* not sure which method above is better... maybe a combination of both

----------------------------------------------------------------------------

diff --git a/src/add-ons/accelerants/radeon_hd/gpu.cpp 
b/src/add-ons/accelerants/radeon_hd/gpu.cpp
index c9213fc..9b98a2f 100644
--- a/src/add-ons/accelerants/radeon_hd/gpu.cpp
+++ b/src/add-ons/accelerants/radeon_hd/gpu.cpp
@@ -623,6 +623,14 @@ radeon_gpu_read_edid(uint32 connector, edid1_info *edid)
        if (gGPIOInfo[gpioID]->valid == false)
                return false;
 
+       if (gConnector[connector]->type == VIDEO_CONNECTOR_LVDS) {
+               // we should call radeon_gpu_read_edid_lvds at some point
+               ERROR("%s: LCD panel detected (LVDS), sending VESA EDID!\n",
+                       __func__);
+               memcpy(edid, &gInfo->shared_info->edid_info, sizeof(struct 
edid1_info));
+               return true;
+       }
+
        i2c_bus bus;
 
        ddc2_init_timing(&bus);
@@ -644,6 +652,75 @@ radeon_gpu_read_edid(uint32 connector, edid1_info *edid)
 }
 
 
+#if 0
+bool
+radeon_gpu_read_edid_lvds(uint32 connector, edid1_info *edid)
+{
+       uint8 dceMajor;
+       uint8 dceMinor;
+       int index = GetIndexIntoMasterTable(DATA, LVDS_Info);
+       uint16 offset;
+
+       if (atom_parse_data_header(gAtomContexg, index, NULL,
+               &dceMajor, &dceMinor, &offset) == B_OK) {
+               lvdsInfo = (union lvds_info *)(gAtomContext->bios + offset);
+
+               display_timing timing;
+               // Pixel Clock
+               timing.pixel_clock
+                       = 
B_LENDIAN_TO_HOST_INT16(lvdsInfo->info.sLCDTiming.usPixClk) * 10;
+               // Horizontal
+               timing.h_display
+                       = 
B_LENDIAN_TO_HOST_INT16(lvdsInfo->info.sLCDTiming.usHActive);
+               timing.h_total = timing.h_display + B_LENDIAN_TO_HOST_INT16(
+                       lvdsInfo->info.sLCDTiming.usHBlanking_Time);
+               timing.h_sync_start = timing.h_display
+                       + 
B_LENDIAN_TO_HOST_INT16(lvdsInfo->info.sLCDTiming.usHSyncOffset);
+               timing.h_sync_end = timing.h_sync_start
+                       + 
B_LENDIAN_TO_HOST_INT16(lvdsInfo->info.sLCDTiming.usHSyncWidth);
+               // Vertical
+               timing.v_display
+                       = 
B_LENDIAN_TO_HOST_INT16(lvdsInfo->info.sLCDTiming.usVActive);
+               timing.v_total = timing.v_display + B_LENDIAN_TO_HOST_INT16(
+                       lvdsInfo->info.sLCDTiming.usVBlanking_Time);
+               timing.v_sync_start = timing.v_display
+                       + 
B_LENDIAN_TO_HOST_INT16(lvdsInfo->info.sLCDTiming.usVSyncOffset);
+               timing.v_sync_end = timing.v_sync_start
+                       + 
B_LENDIAN_TO_HOST_INT16(lvdsInfo->info.sLCDTiming.usVSyncWidth);
+
+               #if 0
+               // Who cares.
+               uint32 powerDelay
+                       = 
B_LENDIAN_TO_HOST_INT16(lvdsInfo->info.usOffDelayInMs);
+               uint32 lcdMisc = lvdsInfo->info.ucLVDS_Misc;
+               #endif
+
+               uint16 flags = B_LENDIAN_TO_HOST_INT16(
+                       lvdsInfo->info.sLCDTiming.susModeMiscInfo.usAccess);
+
+               if ((flags & ATOM_VSYNC_POLARITY) == 0)
+                       timing.flags |= B_POSITIVE_VSYNC;
+               if ((flags & ATOM_HSYNC_POLARITY) == 0)
+                       timing.flags |= B_POSITIVE_HSYNC;
+
+               // Extra flags
+               if ((flags & ATOM_INTERLACE) != 0)
+                       timing.flags |= B_TIMING_INTERLACED;
+
+               #if 0
+               // We don't use these timing flags at the moment
+               if ((flags & ATOM_COMPOSITESYNC) != 0)
+                       timing.flags |= MODE_FLAG_CSYNC;
+               if ((flags & ATOM_DOUBLE_CLOCK_MODE) != 0)
+                       timing.flags |= MODE_FLAG_DBLSCAN;
+               #endif
+
+               // TODO: generate a fake EDID with information above
+       }
+}
+#endif
+
+
 status_t
 radeon_gpu_i2c_attach(uint32 id, uint8 hw_line)
 {
diff --git a/src/add-ons/accelerants/radeon_hd/gpu.h 
b/src/add-ons/accelerants/radeon_hd/gpu.h
index 81005ff..ac42211 100644
--- a/src/add-ons/accelerants/radeon_hd/gpu.h
+++ b/src/add-ons/accelerants/radeon_hd/gpu.h
@@ -11,6 +11,8 @@
 
 #include "accelerant.h"
 
+#include <video_configuration.h>
+
 
 #define HDP_REG_COHERENCY_FLUSH_CNTL 0x54A0
 #define HDP_NONSURFACE_BASE                    0x2C04
[haiku-commits] haiku: hrev43327 - src/add-ons/accelerants/radeon_hd

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