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radeon_hd: Update DisplayPort aux for DCE6

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* DCE6 requires a non-0 value for lpAuxRequest
  (0 is reserved)
This commit is contained in:
Alexander von Gluck IV
2013-12-19 01:19:31 -06:00
parent 233507b3cd
commit 92f91bc8da
1 changed files with 9 additions and 4 deletions
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src/add-ons/accelerants/radeon_hd/displayport.cpp
+8 -3
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@@ -49,8 +49,8 @@ dp_aux_speak(uint32 hwPin, uint8* send, int sendBytes,
union auxChannelTransaction args; union auxChannelTransaction args;
memset(&args, 0, sizeof(args)); memset(&args, 0, sizeof(args));
args.v1.lpAuxRequest = 0; args.v1.lpAuxRequest = B_HOST_TO_LENDIAN_INT16(0 + 4);
args.v1.lpDataOut = 16; args.v1.lpDataOut = B_HOST_TO_LENDIAN_INT16(16 + 4);
args.v1.ucDataOutLen = 0; args.v1.ucDataOutLen = 0;
args.v1.ucChannelID = hwPin; args.v1.ucChannelID = hwPin;
args.v1.ucDelay = delay / 10; args.v1.ucDelay = delay / 10;
@@ -58,7 +58,10 @@ dp_aux_speak(uint32 hwPin, uint8* send, int sendBytes,
//if (ASIC_IS_DCE4(rdev)) //if (ASIC_IS_DCE4(rdev))
// args.v2.ucHPD_ID = chan->rec.hpd; // args.v2.ucHPD_ID = chan->rec.hpd;
unsigned char* base = (unsigned char*)gAtomContext->scratch; unsigned char* base = (unsigned char*)(gAtomContext->scratch + 1);
// TODO: This isn't correct for big endian systems!
// send needs to be swapped on big endian.
memcpy(base, send, sendBytes); memcpy(base, send, sendBytes);
atom_execute_table(gAtomContext, index, (uint32*)&args); atom_execute_table(gAtomContext, index, (uint32*)&args);
@@ -81,6 +84,8 @@ dp_aux_speak(uint32 hwPin, uint8* send, int sendBytes,
if (recvLength > recvBytes) if (recvLength > recvBytes)
recvLength = recvBytes; recvLength = recvBytes;
// TODO: This isn't correct for big endian systems!
// recv needs to be swapped on big endian.
if (recv && recvBytes) if (recv && recvBytes)
memcpy(recv, base + 16, recvLength); memcpy(recv, base + 16, recvLength);