diff options
Diffstat (limited to 'QuarkSocPkg/QuarkSouthCluster/Usb/Ohci/Pei/OhciSched.c')
| -rw-r--r-- | QuarkSocPkg/QuarkSouthCluster/Usb/Ohci/Pei/OhciSched.c | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/QuarkSocPkg/QuarkSouthCluster/Usb/Ohci/Pei/OhciSched.c b/QuarkSocPkg/QuarkSouthCluster/Usb/Ohci/Pei/OhciSched.c new file mode 100644 index 0000000000..49f13b66ba --- /dev/null +++ b/QuarkSocPkg/QuarkSouthCluster/Usb/Ohci/Pei/OhciSched.c @@ -0,0 +1,229 @@ +/** @file
+OHCI transfer scheduling routines.
+
+Copyright (c) 2013-2015 Intel Corporation.
+
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+
+#include "OhcPeim.h"
+
+/**
+
+ Convert Error code from OHCI format to EFI format
+
+ @Param ErrorCode ErrorCode in OHCI format
+
+ @retval ErrorCode in EFI format
+
+**/
+UINT32
+ConvertErrorCode (
+ IN UINT32 ErrorCode
+ )
+{
+ UINT32 TransferResult;
+
+ switch (ErrorCode) {
+ case TD_NO_ERROR:
+ TransferResult = EFI_USB_NOERROR;
+ break;
+
+ case TD_TOBE_PROCESSED:
+ case TD_TOBE_PROCESSED_2:
+ TransferResult = EFI_USB_ERR_NOTEXECUTE;
+ break;
+
+ case TD_DEVICE_STALL:
+ TransferResult = EFI_USB_ERR_STALL;
+ break;
+
+ case TD_BUFFER_OVERRUN:
+ case TD_BUFFER_UNDERRUN:
+ TransferResult = EFI_USB_ERR_BUFFER;
+ break;
+
+ case TD_CRC_ERROR:
+ TransferResult = EFI_USB_ERR_CRC;
+ break;
+
+ case TD_NO_RESPONSE:
+ TransferResult = EFI_USB_ERR_TIMEOUT;
+ break;
+
+ case TD_BITSTUFFING_ERROR:
+ TransferResult = EFI_USB_ERR_BITSTUFF;
+ break;
+
+ default:
+ TransferResult = EFI_USB_ERR_SYSTEM;
+ }
+
+ return TransferResult;
+}
+
+
+/**
+
+ Check TDs Results
+
+ @Param Ohc UHC private data
+ @Param Td TD_DESCRIPTOR
+ @Param Result Result to return
+
+ @retval TRUE means OK
+ @retval FLASE means Error or Short packet
+
+**/
+BOOLEAN
+OhciCheckTDsResults (
+ IN USB_OHCI_HC_DEV *Ohc,
+ IN TD_DESCRIPTOR *Td,
+ OUT UINT32 *Result
+ )
+{
+ UINT32 TdCompletionCode;
+
+ *Result = EFI_USB_NOERROR;
+
+ while (Td) {
+ TdCompletionCode = Td->Word0.ConditionCode;
+
+ *Result |= ConvertErrorCode(TdCompletionCode);
+ //
+ // if any error encountered, stop processing the left TDs.
+ //
+ if (*Result) {
+ return FALSE;
+ }
+
+ Td = Td->NextTDPointer;
+ }
+ return TRUE;
+
+}
+
+
+/**
+
+ Check the task status on an ED
+
+ @Param Ed Pointer to the ED task that TD hooked on
+ @Param HeadTd TD header for current transaction
+
+ @retval Task Status Code
+
+**/
+
+UINT32
+CheckEDStatus (
+ IN ED_DESCRIPTOR *Ed,
+ IN TD_DESCRIPTOR *HeadTd
+ )
+{
+ while(HeadTd != NULL) {
+ if (HeadTd->Word0.ConditionCode != 0) {
+ return HeadTd->Word0.ConditionCode;
+ }
+ HeadTd = HeadTd->NextTDPointer;
+ }
+
+ if (OhciGetEDField (Ed, ED_TDHEAD_PTR) != OhciGetEDField (Ed, ED_TDTAIL_PTR)) {
+ return TD_TOBE_PROCESSED;
+ }
+
+ return TD_NO_ERROR;
+}
+
+/**
+
+ Check the task status
+
+ @Param Ohc UHC private data
+ @Param ListType Pipe type
+ @Param Ed Pointer to the ED task hooked on
+ @Param HeadTd Head of TD corresponding to the task
+ @Param ErrorCode return the ErrorCode
+
+ @retval EFI_SUCCESS Task done
+ @retval EFI_NOT_READY Task on processing
+ @retval EFI_DEVICE_ERROR Some error occured
+
+**/
+EFI_STATUS
+CheckIfDone (
+ IN USB_OHCI_HC_DEV *Ohc,
+ IN DESCRIPTOR_LIST_TYPE ListType,
+ IN ED_DESCRIPTOR *Ed,
+ IN TD_DESCRIPTOR *HeadTd,
+ OUT UINT32 *ErrorCode
+ )
+{
+ *ErrorCode = TD_TOBE_PROCESSED;
+
+ switch (ListType) {
+ case CONTROL_LIST:
+ if (OhciGetHcCommandStatus (Ohc, CONTROL_LIST_FILLED) != 0) {
+ return EFI_NOT_READY;
+ }
+ break;
+
+ case BULK_LIST:
+ if (OhciGetHcCommandStatus (Ohc, BULK_LIST_FILLED) != 0) {
+ return EFI_NOT_READY;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ *ErrorCode = CheckEDStatus (Ed, HeadTd);
+
+
+ if (*ErrorCode == TD_NO_ERROR) {
+ return EFI_SUCCESS;
+ } else if (*ErrorCode == TD_TOBE_PROCESSED) {
+ return EFI_NOT_READY;
+ } else {
+ return EFI_DEVICE_ERROR;
+ }
+}
+
+
+/**
+
+ Convert TD condition code to Efi Status
+
+ @Param ConditionCode Condition code to convert
+
+ @retval EFI_SUCCESS No error occured
+ @retval EFI_NOT_READY TD still on processing
+ @retval EFI_DEVICE_ERROR Error occured in processing TD
+
+**/
+
+EFI_STATUS
+OhciTDConditionCodeToStatus (
+ IN UINT32 ConditionCode
+ )
+{
+ if (ConditionCode == TD_NO_ERROR) {
+ return EFI_SUCCESS;
+ }
+
+ if (ConditionCode == TD_TOBE_PROCESSED) {
+ return EFI_NOT_READY;
+ }
+
+ return EFI_DEVICE_ERROR;
+}
+
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