diff options
Diffstat (limited to 'EmbeddedPkg/Universal/MmcDxe')
| -rw-r--r-- | EmbeddedPkg/Universal/MmcDxe/Mmc.c | 8 | ||||
| -rw-r--r-- | EmbeddedPkg/Universal/MmcDxe/Mmc.h | 11 | ||||
| -rw-r--r-- | EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c | 156 |
3 files changed, 95 insertions, 80 deletions
diff --git a/EmbeddedPkg/Universal/MmcDxe/Mmc.c b/EmbeddedPkg/Universal/MmcDxe/Mmc.c index cfa9a51f50..48d32513d4 100644 --- a/EmbeddedPkg/Universal/MmcDxe/Mmc.c +++ b/EmbeddedPkg/Universal/MmcDxe/Mmc.c @@ -299,6 +299,9 @@ MmcDriverBindingStart ( InsertMmcHost (MmcHostInstance);
MmcHostInstance->Initialized = FALSE;
+
+ // Detect card presence now
+ CheckCardsCallback (NULL, NULL);
}
return EFI_SUCCESS;
@@ -366,6 +369,10 @@ CheckCardsCallback ( MmcHostInstance->BlockIo.Media->MediaPresent = !MmcHostInstance->Initialized;
MmcHostInstance->Initialized = !MmcHostInstance->Initialized;
+ if(MmcHostInstance->BlockIo.Media->MediaPresent) {
+ InitializeMmcDevice(MmcHostInstance);
+ }
+
Status = gBS->ReinstallProtocolInterface (
(MmcHostInstance->MmcHandle),
&gEfiBlockIoProtocolGuid,
@@ -382,6 +389,7 @@ CheckCardsCallback ( }
}
+
EFI_DRIVER_BINDING_PROTOCOL gMmcDriverBinding = {
MmcDriverBindingSupported,
MmcDriverBindingStart,
diff --git a/EmbeddedPkg/Universal/MmcDxe/Mmc.h b/EmbeddedPkg/Universal/MmcDxe/Mmc.h index 2904d91484..f3b9029573 100644 --- a/EmbeddedPkg/Universal/MmcDxe/Mmc.h +++ b/EmbeddedPkg/Universal/MmcDxe/Mmc.h @@ -288,4 +288,15 @@ MmcFlushBlocks ( IN EFI_BLOCK_IO_PROTOCOL *This
);
+EFI_STATUS InitializeMmcDevice(
+ IN MMC_HOST_INSTANCE *MmcHost
+ );
+
+VOID
+EFIAPI
+CheckCardsCallback (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ );
+
#endif
diff --git a/EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c b/EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c index cc0d5bdc23..c12411c152 100644 --- a/EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c +++ b/EmbeddedPkg/Universal/MmcDxe/MmcBlockIo.c @@ -172,7 +172,6 @@ MmcGetCardStatus( Status = MmcHost->SendCommand(MMC_CMD13, CmdArg);
if (EFI_ERROR(Status)) {
DEBUG((EFI_D_ERROR, "MmcGetCardStatus(MMC_CMD13): Error and Status = %r\n", Status));
- ASSERT(0);
return Status;
}
@@ -305,7 +304,6 @@ MmcIdentificationMode ( if (Timeout == 0) {
DEBUG((EFI_D_ERROR, "MmcIdentificationMode(): No Card\n"));
- ASSERT(0);
return EFI_NO_MEDIA;
} else {
PrintOCR(Response[0]);
@@ -320,7 +318,6 @@ MmcIdentificationMode ( Status = MmcHost->SendCommand(MMC_CMD2, 0);
if (EFI_ERROR(Status)) {
DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD2): Error\n"));
- ASSERT(0);
return Status;
}
MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_CID,Response);
@@ -363,6 +360,81 @@ MmcIdentificationMode ( return EFI_SUCCESS;
}
+EFI_STATUS InitializeMmcDevice(
+ IN MMC_HOST_INSTANCE *MmcHostInstance
+ )
+{
+ UINT32 Response[4];
+ EFI_STATUS Status;
+ UINTN CardSize, NumBlocks, BlockSize, CmdArg;
+ EFI_MMC_HOST_PROTOCOL *MmcHost;
+ UINTN BlockCount = 1;
+
+ MmcHost = MmcHostInstance->MmcHost;
+
+ MmcIdentificationMode (MmcHostInstance);
+
+ //Send a command to get Card specific data
+ CmdArg = MmcHostInstance->CardInfo.RCA << 16;
+ Status = MmcHost->SendCommand(MMC_CMD9, CmdArg);
+ if (EFI_ERROR(Status)) {
+ DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD9): Error, Status=%r\n", Status));
+ return Status;
+ }
+ //Read Response
+ MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_CSD,Response);
+ PrintCSD(Response);
+
+ if (MmcHostInstance->CardInfo.CardType == SD_CARD_2_HIGH) {
+ CardSize = HC_MMC_CSD_GET_DEVICESIZE(Response);
+ NumBlocks = ((CardSize + 1) * 1024);
+ BlockSize = 1 << MMC_CSD_GET_READBLLEN(Response);
+ } else {
+ CardSize = MMC_CSD_GET_DEVICESIZE(Response);
+ NumBlocks = (CardSize + 1) * (1 << (MMC_CSD_GET_DEVICESIZEMULT(Response) + 2));
+ BlockSize = 1 << MMC_CSD_GET_READBLLEN(Response);
+ }
+
+ //For >=2G card, BlockSize may be 1K, but the transfer size is 512 bytes.
+ if (BlockSize > 512) {
+ NumBlocks = MultU64x32(NumBlocks, BlockSize/512);
+ BlockSize = 512;
+ }
+
+ MmcHostInstance->BlockIo.Media->LastBlock = (NumBlocks - 1);
+ MmcHostInstance->BlockIo.Media->BlockSize = BlockSize;
+ MmcHostInstance->BlockIo.Media->ReadOnly = MmcHost->IsReadOnly();
+ MmcHostInstance->BlockIo.Media->MediaPresent = TRUE;
+ MmcHostInstance->BlockIo.Media->MediaId++;
+
+ CmdArg = MmcHostInstance->CardInfo.RCA << 16;
+ Status = MmcHost->SendCommand(MMC_CMD7, CmdArg);
+ if (EFI_ERROR(Status)) {
+ DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD7): Error and Status = %r\n", Status));
+ return Status;
+ }
+
+ Status = MmcNotifyState (MmcHostInstance, MmcTransferState);
+ if (EFI_ERROR(Status)) {
+ DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcTransferState\n"));
+ return Status;
+ }
+
+ // Set Block Length
+ Status = MmcHost->SendCommand(MMC_CMD16, MmcHostInstance->BlockIo.Media->BlockSize);
+ if (EFI_ERROR(Status)) {
+ DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD16): Error MmcHostInstance->BlockIo.Media->BlockSize: %d and Error = %r\n",MmcHostInstance->BlockIo.Media->BlockSize, Status));
+ return Status;
+ }
+
+ // Block Count (not used). Could return an error for SD card
+ if (MmcHostInstance->CardInfo.CardType == MMC_CARD) {
+ MmcHost->SendCommand(MMC_CMD23, BlockCount);
+ }
+
+ return EFI_SUCCESS;
+}
+
EFI_STATUS
EFIAPI
MmcReset (
@@ -424,7 +496,7 @@ MmcIoBlocks ( {
UINT32 Response[4];
EFI_STATUS Status;
- UINTN CardSize, NumBlocks, BlockSize, CmdArg;
+ UINTN CmdArg;
INTN Timeout;
UINTN Cmd;
MMC_HOST_INSTANCE *MmcHostInstance;
@@ -446,89 +518,13 @@ MmcIoBlocks ( return EFI_NO_MEDIA;
}
- // If the driver has not been initialized yet then go into Identification Mode
- if (MmcHostInstance->State == MmcHwInitializationState) {
- MmcIdentificationMode (MmcHostInstance);
-
- //Send a command to get Card specific data
- CmdArg = MmcHostInstance->CardInfo.RCA << 16;
- Status = MmcHost->SendCommand(MMC_CMD9, CmdArg);
- if (EFI_ERROR(Status)) {
- DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD9): Error, Status=%r\n", Status));
- ASSERT(0);
- return Status;
- }
- //Read Response
- MmcHost->ReceiveResponse(MMC_RESPONSE_TYPE_CSD,Response);
- PrintCSD(Response);
-
- if (MmcHostInstance->CardInfo.CardType == SD_CARD_2_HIGH) {
- CardSize = HC_MMC_CSD_GET_DEVICESIZE(Response);
- NumBlocks = ((CardSize + 1) * 1024);
- BlockSize = 1 << MMC_CSD_GET_READBLLEN(Response);
- } else {
- CardSize = MMC_CSD_GET_DEVICESIZE(Response);
- NumBlocks = (CardSize + 1) * (1 << (MMC_CSD_GET_DEVICESIZEMULT(Response) + 2));
- BlockSize = 1 << MMC_CSD_GET_READBLLEN(Response);
- }
-
- //For >=2G card, BlockSize may be 1K, but the transfer size is 512 bytes.
- if (BlockSize > 512) {
- NumBlocks = MultU64x32(NumBlocks, BlockSize/512);
- BlockSize = 512;
- }
-
- MmcHostInstance->BlockIo.Media->LastBlock = (NumBlocks - 1);
- MmcHostInstance->BlockIo.Media->BlockSize = BlockSize;
- MmcHostInstance->BlockIo.Media->ReadOnly = MmcHost->IsReadOnly();
- MmcHostInstance->BlockIo.Media->MediaPresent = TRUE;
- MmcHostInstance->BlockIo.Media->MediaId++;
-
- CmdArg = MmcHostInstance->CardInfo.RCA << 16;
- Status = MmcHost->SendCommand(MMC_CMD7, CmdArg);
- if (EFI_ERROR(Status)) {
- DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD7): Error and Status = %r\n", Status));
- ASSERT(0);
- return Status;
- }
-
- Status = MmcNotifyState (MmcHostInstance, MmcTransferState);
- if (EFI_ERROR(Status)) {
- DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcTransferState\n"));
- return Status;
- }
-
- // Set Block Length
- Status = MmcHost->SendCommand(MMC_CMD16, This->Media->BlockSize);
- if (EFI_ERROR(Status)) {
- DEBUG((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD16): Error This->Media->BlockSize: %d and Error = %r\n",This->Media->BlockSize, Status));
- return Status;
- }
-
- // Block Count (not used). Could return an error for SD card
- if (MmcHostInstance->CardInfo.CardType == MMC_CARD) {
- MmcHost->SendCommand(MMC_CMD23, BlockCount);
- }
- } else {
- // Maybe test if the card has changed to update gMmcMedia information
- if (MmcHostInstance->State == MmcTransferState) {
- //DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : MmcTransferState\n"));
- } else if (MmcHostInstance->State == MmcStandByState) {
- DEBUG((EFI_D_ERROR, "MmcIdentificationMode() : MmcStandByState\n"));
- } else {
- ASSERT(0);
- }
- }
-
// All blocks must be within the device
if ((Lba + (BufferSize / This->Media->BlockSize)) > (This->Media->LastBlock + 1)){
- ASSERT(0);
return EFI_INVALID_PARAMETER;
}
// The buffer size must not be zero and it must be an exact multiple of the block size
if ((BufferSize == 0) || ((BufferSize % This->Media->BlockSize) != 0)) {
- ASSERT(0);
return EFI_BAD_BUFFER_SIZE;
}
|