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Add PCD setting for Timer, default is 10 times a second. You need the timer to detect a media change event. Also coded up DMA, but have not debugged it yet and it is not turned on. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10478 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
andrewfish 2010-05-11 00:06:47 +00:00
parent c16f9cc33d
commit 9f6b977f66
6 changed files with 119 additions and 55 deletions
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6
Omap35xxPkg/Include/Library/OmapDmaLib.h
View File

@ -88,6 +88,8 @@ EnableDmaChannel (
Turn of DMA channel configured by EnableDma().
@param Channel DMA Channel to configure
@param SuccesMask Bits in DMA4_CSR register indicate EFI_SUCCESS
@param ErrorMask Bits in DMA4_CSR register indicate EFI_DEVICE_ERROR
@retval EFI_SUCCESS DMA hardware disabled
@retval EFI_INVALID_PARAMETER Channel is not valid
@ -97,7 +99,9 @@ EnableDmaChannel (
EFI_STATUS
EFIAPI
DisableDmaChannel (
IN UINTN Channel
IN UINTN Channel,
IN UINT32 SuccessMask,
IN UINT32 ErrorMask
);

20
Omap35xxPkg/Include/Omap3530/Omap3530Dma.h
View File

@ -22,6 +22,7 @@
#define DMA4_CCR(_i) (0x48056080 + (0x60*(_i)))
#define DMA4_CICR(_i) (0x48056088 + (0x60*(_i)))
#define DMA4_CSR(_i) (0x4805608c + (0x60*(_i)))
#define DMA4_CSDP(_i) (0x48056090 + (0x60*(_i)))
#define DMA4_CEN(_i) (0x48056094 + (0x60*(_i)))
#define DMA4_CFN(_i) (0x48056098 + (0x60*(_i)))
@ -106,5 +107,24 @@
#define DMA4_CCR_SEL_SRC_DEST_SYNC_SOURCE BIT24
#define DMA4_CSR_DROP BIT1
#define DMA4_CSR_HALF BIT2
#define DMA4_CSR_FRAME BIT3
#define DMA4_CSR_LAST BIT4
#define DMA4_CSR_BLOCK BIT5
#define DMA4_CSR_SYNC BIT6
#define DMA4_CSR_PKT BIT7
#define DMA4_CSR_TRANS_ERR BIT8
#define DMA4_CSR_SECURE_ERR BIT9
#define DMA4_CSR_SUPERVISOR_ERR BIT10
#define DMA4_CSR_MISALIGNED_ADRS_ERR BIT11
#define DMA4_CSR_DRAIN_END BIT12
#define DMA4_CSR_RESET 0x1FE
#define DMA4_CSR_ERR (DMA4_CSR_TRANS_ERR | DMA4_CSR_SECURE_ERR | DMA4_CSR_SUPERVISOR_ERR | DMA4_CSR_MISALIGNED_ADRS_ERR)
// same mapping as CSR except for SYNC. Enable all since we are polling
#define DMA4_CICR_ENABLE_ALL 0x1FBE
#endif

38
Omap35xxPkg/Library/OmapDmaLib/OmapDmaLib.c
View File

@ -125,11 +125,17 @@ EnableDmaChannel (
/* - Set the destination frame index CDFI[31:0]*/
MmioWrite32 (DMA4_CDFI (Channel), DMA4->DestinationFrameIndex);
MmioWrite32 (DMA4_CDFI (Channel), DMA4->DestinationFrameIndex);
// Enable all the status bits since we are polling
MmioWrite32 (DMA4_CICR (Channel), DMA4_CICR_ENABLE_ALL);
MmioWrite32 (DMA4_CSR (Channel), DMA4_CSR_RESET);
/* 2) Start the DMA transfer by Setting the enable bit CCR[7]=1 */
/*--------------------------------------------------------------*/
//write enable bit
MmioOr32 (DMA4_CCR(0), DMA4_CCR_ENABLE); //Launch transfer
MmioOr32 (DMA4_CCR(Channel), DMA4_CCR_ENABLE); //Launch transfer
return EFI_SUCCESS;
}
@ -138,6 +144,8 @@ EnableDmaChannel (
Turn of DMA channel configured by EnableDma().
@param Channel DMA Channel to configure
@param SuccesMask Bits in DMA4_CSR register indicate EFI_SUCCESS
@param ErrorMask Bits in DMA4_CSR register indicate EFI_DEVICE_ERROR
@retval EFI_SUCCESS DMA hardware disabled
@retval EFI_INVALID_PARAMETER Channel is not valid
@ -147,17 +155,39 @@ EnableDmaChannel (
EFI_STATUS
EFIAPI
DisableDmaChannel (
IN UINTN Channel
IN UINTN Channel,
IN UINT32 SuccessMask,
IN UINT32 ErrorMask
)
{
EFI_STATUS Status = EFI_SUCCESS;
UINT32 Reg;
if (Channel > DMA4_MAX_CHANNEL) {
return EFI_INVALID_PARAMETER;
}
do {
Reg = MmioRead32 (DMA4_CSR(Channel));
if ((Reg & ErrorMask) != 0) {
Status = EFI_DEVICE_ERROR;
DEBUG ((EFI_D_ERROR, "DMA Error (%d) %x\n", Channel, Reg));
break;
}
} while ((Reg & SuccessMask) != SuccessMask);
// Disable all status bits and clear them
MmioWrite32 (DMA4_CICR (Channel), 0);
MmioWrite32 (DMA4_CSR (Channel), DMA4_CSR_RESET);
MmioAnd32 (DMA4_CCR(0), ~(DMA4_CCR_ENABLE | DMA4_CCR_RD_ACTIVE | DMA4_CCR_WR_ACTIVE));
return EFI_SUCCESS;
return Status;
}
/**
Provides the DMA controller-specific addresses needed to access system memory.

108
Omap35xxPkg/MMCHSDxe/MMCHS.c
View File

@ -740,7 +740,7 @@ DmaBlocks (
)
{
EFI_STATUS Status;
UINTN RetryCount = 0;
UINTN DmaSize = 0;
UINTN Cmd = 0;
UINTN CmdInterruptEnable;
UINTN CmdArgument;
@ -749,66 +749,73 @@ DmaBlocks (
OMAP_DMA4 Dma4;
DMA_MAP_OPERATION DmaOperation;
CpuDeadLoop ();
// Map passed in buffer for DMA xfer
DmaSize = BlockCount * This->Media->BlockSize;
Status = DmaMap (DmaOperation, Buffer, &DmaSize, &BufferAddress, &BufferMap);
if (EFI_ERROR (Status)) {
return Status;
}
ZeroMem (&DmaOperation, sizeof (DMA_MAP_OPERATION));
Dma4.DataType = 2; // DMA4_CSDPi[1:0] 32-bit elements from MMCHS_DATA
Dma4.SourceEndiansim = 0; // DMA4_CSDPi[21]
Dma4.DestinationEndianism = 0; // DMA4_CSDPi[19]
Dma4.SourcePacked = 0; // DMA4_CSDPi[6]
Dma4.DestinationPacked = 0; // DMA4_CSDPi[13]
Dma4.NumberOfElementPerFrame = This->Media->BlockSize/4; // DMA4_CENi (TRM 4K is optimum value)
Dma4.NumberOfFramePerTransferBlock = BlockCount; // DMA4_CFNi
Dma4.ReadPriority = 0; // DMA4_CCRi[6] Low priority read
Dma4.WritePriority = 0; // DMA4_CCRi[23] Prefetech disabled
//Populate the command information based on the operation type.
if (OperationType == READ) {
Cmd = CMD18; //Multiple block read
CmdInterruptEnable = CMD18_INT_EN;
DmaOperation = MapOperationBusMasterCommonBuffer;
Dma4.ReadPortAccessType =0 ; // DMA4_CSDPi[8:7] Can not burst MMCHS_DATA reg
Dma4.WritePortAccessType = 3; // DMA4_CSDPi[15:14] Memory burst 16x32
Dma4.WriteMode = 1; // DMA4_CSDPi[17:16] Write posted
Dma4.SourceStartAddress = MMCHS_DATA; // DMA4_CSSAi
Dma4.DestinationStartAddress = (UINT32)BufferAddress; // DMA4_CDSAi
Dma4.SourceElementIndex = 1; // DMA4_CSEi
Dma4.SourceFrameIndex = 0x200; // DMA4_CSFi
Dma4.DestinationElementIndex = 1; // DMA4_CDEi
Dma4.DestinationFrameIndex = 0; // DMA4_CDFi
Dma4.ReadPortAccessMode = 0; // DMA4_CCRi[13:12] Always read MMCHS_DATA
Dma4.WritePortAccessMode = 1; // DMA4_CCRi[15:14] Post increment memory address
Dma4.ReadRequestNumber = 0x1e; // DMA4_CCRi[4:0] Syncro with MMCA_DMA_RX (61)
Dma4.WriteRequestNumber = 1; // DMA4_CCRi[20:19] Syncro upper 0x3e == 62 (one based)
} else if (OperationType == WRITE) {
Cmd = CMD25; //Multiple block write
CmdInterruptEnable = CMD25_INT_EN;
DmaOperation = MapOperationBusMasterRead;
Dma4.ReadPortAccessType = 3; // DMA4_CSDPi[8:7] Memory burst 16x32
Dma4.WritePortAccessType = 0; // DMA4_CSDPi[15:14] Can not burst MMCHS_DATA reg
Dma4.WriteMode = 1; // DMA4_CSDPi[17:16] Write posted ???
Dma4.SourceStartAddress = (UINT32)BufferAddress; // DMA4_CSSAi
Dma4.DestinationStartAddress = MMCHS_DATA; // DMA4_CDSAi
Dma4.SourceElementIndex = 1; // DMA4_CSEi
Dma4.SourceFrameIndex = 0x200; // DMA4_CSFi
Dma4.DestinationElementIndex = 1; // DMA4_CDEi
Dma4.DestinationFrameIndex = 0; // DMA4_CDFi
Dma4.ReadPortAccessMode = 1; // DMA4_CCRi[13:12] Post increment memory address
Dma4.WritePortAccessMode = 0; // DMA4_CCRi[15:14] Always write MMCHS_DATA
Dma4.ReadRequestNumber = 0x1d; // DMA4_CCRi[4:0] Syncro with MMCA_DMA_TX (60)
Dma4.WriteRequestNumber = 1; // DMA4_CCRi[20:19] Syncro upper 0x3d == 61 (one based)
} else {
return EFI_INVALID_PARAMETER;
}
// Map passed in buffer for DMA xfer
RetryCount = BlockCount * This->Media->BlockSize;
Status = DmaMap (DmaOperation, Buffer, &RetryCount, &BufferAddress, &BufferMap);
if (EFI_ERROR (Status)) {
return Status;
}
#if 0
MmioWrite32 (DMA4_CSDP(0), DMA4_CSDP_DATA_TYPE32 | DMA4_CSDP_SRC_BURST_EN64 | DMA4_CSDP_WRITE_MODE_POSTED);
MmioWrite32 (DMA4_CEN(0), 0x4096); // Channel Element number
MmioWrite32 (DMA4_CFN(0), 0x1); // Channel Frame number
if () {
MmioWrite32 (DMA4_CCR(0), X | DMA4_CCR_FS_PACKET | DMA4_CCR_RD_ACTIVE | DMA4_CCR_WR_ACTIVE | DMA4_CCR_DST_AMODE_POST_INC | DMA4_CCR_SEL_SRC_DEST_SYNC_SOURCE);
MmioWrite32 (DMA4_CSSA(0), MMCHS_DATA); // Src is SD Card
MmioWrite32 (DMA4_CDSA(0), (UINT32)BufferAddress); // Dst memory
} else {
MmioWrite32 (DMA4_CCR(0), X | DMA4_CCR_FS_PACKET | DMA4_CCR_RD_ACTIVE | DMA4_CCR_WR_ACTIVE | DMA4_CCR_SRC_AMODE_POST_INC);
MmioWrite32 (DMA4_CSSA(0), (UINT32)BufferAddress); // Src memory
MmioWrite32 (DMA4_CDSA(0), MMCHS_DATA); // Dst SD Card
}
MmioWrite32 (DMA4_CSE(0), 1);
MmioWrite32 (DMA4_CSF(0), This->Media->BlockSize);
MmioWrite32 (DMA4_CDE(0), 1);
#endif
Dma4.DataType = 0; // DMA4_CSDPi[1:0]
Dma4.ReadPortAccessType =0; // DMA4_CSDPi[8:7]
Dma4.WritePortAccessType =0; // DMA4_CSDPi[15:14]
Dma4.SourceEndiansim = 0; // DMA4_CSDPi[21]
Dma4.DestinationEndianism = 0; // DMA4_CSDPi[19]
Dma4.WriteMode = 0; // DMA4_CSDPi[17:16]
Dma4.SourcePacked = 0; // DMA4_CSDPi[6]
Dma4.DestinationPacked = 0; // DMA4_CSDPi[13]
Dma4.NumberOfElementPerFrame = 0; // DMA4_CENi
Dma4.NumberOfFramePerTransferBlock = 0; // DMA4_CFNi
Dma4.SourceStartAddress = 0; // DMA4_CSSAi
Dma4.DestinationStartAddress = 0; // DMA4_CDSAi
Dma4.SourceElementIndex = 0; // DMA4_CSEi
Dma4.SourceFrameIndex = 0; // DMA4_CSFi
Dma4.DestinationElementIndex = 0; // DMA4_CDEi
Dma4.DestinationFrameIndex = 0; // DMA4_CDFi
Dma4.ReadPortAccessMode = 0; // DMA4_CCRi[13:12]
Dma4.WritePortAccessMode = 0; // DMA4_CCRi[15:14]
Dma4.ReadPriority = 0; // DMA4_CCRi[6]
Dma4.WritePriority = 0; // DMA4_CCRi[23]
Dma4.ReadRequestNumber = 0; // DMA4_CCRi[4:0]
Dma4.WriteRequestNumber = 0; // DMA4_CCRi[20:19]
EnableDmaChannel (2, &Dma4);
@ -827,7 +834,7 @@ DmaBlocks (
return Status;
}
DisableDmaChannel (2);
DisableDmaChannel (2, DMA4_CSR_BLOCK, DMA4_CSR_ERR);
Status = DmaUnmap (BufferMap);
return Status;
@ -1029,6 +1036,7 @@ DetectCard (
return Status;
}
#define MAX_MMCHS_TRANSFER_SIZE 0x4000
EFI_STATUS
SdReadWrite (
@ -1042,7 +1050,7 @@ SdReadWrite (
EFI_STATUS Status = EFI_SUCCESS;
UINTN RetryCount = 0;
UINTN BlockCount;
UINTN BytesToBeTranferedThisPass;
UINTN BytesToBeTranferedThisPass = 0;
UINTN BytesRemainingToBeTransfered;
EFI_TPL OldTpl;
BOOLEAN Update;
@ -1323,7 +1331,7 @@ MMCHSInitialize (
Status = gBS->CreateEvent (EVT_TIMER | EVT_NOTIFY_SIGNAL, TPL_CALLBACK, TimerCallback, NULL, &gTimerEvent);
ASSERT_EFI_ERROR (Status);
Status = gBS->SetTimer (gTimerEvent, TimerPeriodic, 1000000ULL); // make me a PCD
Status = gBS->SetTimer (gTimerEvent, TimerPeriodic, FixedPcdGet32 (PcdMmchsTimerFreq100NanoSeconds));
ASSERT_EFI_ERROR (Status);
//Publish BlockIO.

1
Omap35xxPkg/MMCHSDxe/MMCHS.inf
View File

@ -47,6 +47,7 @@
[Pcd]
gOmap35xxTokenSpaceGuid.PcdOmap35xxMMCHS1Base
gOmap35xxTokenSpaceGuid.PcdMmchsTimerFreq100NanoSeconds
[depex]
gEmbeddedExternalDeviceProtocolGuid

1
Omap35xxPkg/Omap35xxPkg.dec
View File

@ -54,4 +54,5 @@
gOmap35xxTokenSpaceGuid.PcdOmap35xxFreeTimer|4|UINT32|0x00000206
gOmap35xxTokenSpaceGuid.PcdOmap35xxDebugAgentTimer|5|UINT32|0x00000207
gOmap35xxTokenSpaceGuid.PcdDebugAgentTimerFreqNanoSeconds|77|UINT32|0x00000208
gOmap35xxTokenSpaceGuid.PcdMmchsTimerFreq100NanoSeconds|1000000|UINT32|0x00000209