return EFI_UNSUPPORTED;\r
}\r
\r
+/**\r
+ Enable a PCI driver to read PCI controller registers in PCI configuration space.\r
+\r
+ @param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.\r
+ @param[in] Width Signifies the width of the memory operations.\r
+ @param[in] Offset The offset within the PCI configuration space for\r
+ the PCI controller.\r
+ @param[in] Count The number of PCI configuration operations to\r
+ perform. Bytes moved is Width size * Count,\r
+ starting at Offset.\r
+\r
+ @param[in out] Buffer The destination buffer to store the results.\r
+\r
+ @retval EFI_SUCCESS The data was read from the PCI controller.\r
+ @retval EFI_INVALID_PARAMETER "Width" is invalid.\r
+ @retval EFI_INVALID_PARAMETER "Buffer" is NULL.\r
+\r
+**/\r
EFI_STATUS\r
PciIoPciRead (\r
- IN EFI_PCI_IO_PROTOCOL *This,\r
- IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r
- IN UINT32 Offset,\r
- IN UINTN Count,\r
- IN OUT VOID *Buffer\r
+ IN EFI_PCI_IO_PROTOCOL *This,\r
+ IN EFI_PCI_IO_PROTOCOL_WIDTH Width,\r
+ IN UINT32 Offset,\r
+ IN UINTN Count,\r
+ IN OUT VOID *Buffer\r
)\r
{\r
- EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS(This);\r
+ EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS (This);\r
+ EFI_STATUS Status;\r
\r
- return PciRootBridgeIoMemRW ((EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH)Width,\r
- Count,\r
- TRUE,\r
- (PTR)(UINTN)Buffer,\r
- TRUE,\r
- (PTR)(UINTN)(((UINT8 *)Private->ConfigSpace) + Offset)\r
- );\r
+ if ((Width < 0) || (Width >= EfiPciIoWidthMaximum) || (Buffer == NULL)) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ Status = PciRootBridgeIoMemRW (\r
+ (EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH)Width,\r
+ Count,\r
+ TRUE,\r
+ (PTR)(UINTN)Buffer,\r
+ TRUE,\r
+ (PTR)(UINTN)(((UINT8 *)Private->ConfigSpace) + Offset) //Fix me ConfigSpace\r
+ );\r
+\r
+ return Status;\r
}\r
\r
+/**\r
+ Enable a PCI driver to write PCI controller registers in PCI configuration space.\r
+\r
+ @param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.\r
+ @param[in] Width Signifies the width of the memory operations.\r
+ @param[in] Offset The offset within the PCI configuration space for\r
+ the PCI controller.\r
+ @param[in] Count The number of PCI configuration operations to\r
+ perform. Bytes moved is Width size * Count,\r
+ starting at Offset.\r
+\r
+ @param[in out] Buffer The source buffer to write data from.\r
+\r
+ @retval EFI_SUCCESS The data was read from the PCI controller.\r
+ @retval EFI_INVALID_PARAMETER "Width" is invalid.\r
+ @retval EFI_INVALID_PARAMETER "Buffer" is NULL.\r
+\r
+**/\r
EFI_STATUS\r
PciIoPciWrite (\r
IN EFI_PCI_IO_PROTOCOL *This,\r
IN OUT VOID *Buffer\r
)\r
{\r
- EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS(This);\r
+ EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS (This);\r
+\r
+ if ((Width < 0) || (Width >= EfiPciIoWidthMaximum) || (Buffer == NULL)) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
\r
return PciRootBridgeIoMemRW ((EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_WIDTH) Width,\r
Count,\r
return DmaUnmap (Mapping);\r
}\r
\r
+/**\r
+ Allocate pages that are suitable for an EfiPciIoOperationBusMasterCommonBuffer\r
+ mapping.\r
+\r
+ @param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.\r
+ @param[in] Type This parameter is not used and must be ignored.\r
+ @param[in] MemoryType The type of memory to allocate, EfiBootServicesData or\r
+ EfiRuntimeServicesData.\r
+ @param[in] Pages The number of pages to allocate.\r
+ @param[out] HostAddress A pointer to store the base system memory address of\r
+ the allocated range.\r
+ @param[in] Attributes The requested bit mask of attributes for the allocated\r
+ range. Only the attributes,\r
+ EFI_PCI_ATTRIBUTE_MEMORY_WRITE_COMBINE and\r
+ EFI_PCI_ATTRIBUTE_MEMORY_CACHED may be used with this\r
+ function. If any other bits are set, then EFI_UNSUPPORTED\r
+ is returned. This function ignores this bit mask.\r
+\r
+ @retval EFI_SUCCESS The requested memory pages were allocated.\r
+ @retval EFI_INVALID_PARAMETER HostAddress is NULL.\r
+ @retval EFI_INVALID_PARAMETER MemoryType is invalid.\r
+ @retval EFI_UNSUPPORTED Attributes is unsupported.\r
+ @retval EFI_OUT_OF_RESOURCES The memory pages could not be allocated.\r
+\r
+**/\r
EFI_STATUS\r
PciIoAllocateBuffer (\r
- IN EFI_PCI_IO_PROTOCOL *This,\r
- IN EFI_ALLOCATE_TYPE Type,\r
- IN EFI_MEMORY_TYPE MemoryType,\r
- IN UINTN Pages,\r
- OUT VOID **HostAddress,\r
- IN UINT64 Attributes\r
+ IN EFI_PCI_IO_PROTOCOL *This,\r
+ IN EFI_ALLOCATE_TYPE Type,\r
+ IN EFI_MEMORY_TYPE MemoryType,\r
+ IN UINTN Pages,\r
+ OUT VOID **HostAddress,\r
+ IN UINT64 Attributes\r
)\r
{\r
- if (Attributes & EFI_PCI_ATTRIBUTE_INVALID_FOR_ALLOCATE_BUFFER) {\r
- // Check this\r
+ if (Attributes &\r
+ (~(EFI_PCI_ATTRIBUTE_MEMORY_WRITE_COMBINE |\r
+ EFI_PCI_ATTRIBUTE_MEMORY_CACHED ))) {\r
return EFI_UNSUPPORTED;\r
}\r
\r
return EFI_SUCCESS;\r
}\r
\r
+/**\r
+ Retrieves this PCI controller's current PCI bus number, device number, and function number.\r
+\r
+ @param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.\r
+ @param[out] SegmentNumber The PCI controller's current PCI segment number.\r
+ @param[out] BusNumber The PCI controller's current PCI bus number.\r
+ @param[out] DeviceNumber The PCI controller's current PCI device number.\r
+ @param[out] FunctionNumber The PCI controller’s current PCI function number.\r
+\r
+ @retval EFI_SUCCESS The PCI controller location was returned.\r
+ @retval EFI_INVALID_PARAMETER At least one out of the four output parameters is\r
+ a NULL pointer.\r
+**/\r
EFI_STATUS\r
PciIoGetLocation (\r
- IN EFI_PCI_IO_PROTOCOL *This,\r
- OUT UINTN *SegmentNumber,\r
- OUT UINTN *BusNumber,\r
- OUT UINTN *DeviceNumber,\r
- OUT UINTN *FunctionNumber\r
+ IN EFI_PCI_IO_PROTOCOL *This,\r
+ OUT UINTN *SegmentNumber,\r
+ OUT UINTN *BusNumber,\r
+ OUT UINTN *DeviceNumber,\r
+ OUT UINTN *FunctionNumber\r
)\r
{\r
- EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS(This);\r
-\r
- if (SegmentNumber != NULL) {\r
- *SegmentNumber = Private->Segment;\r
- }\r
+ EFI_PCI_IO_PRIVATE_DATA *Private = EFI_PCI_IO_PRIVATE_DATA_FROM_THIS (This);\r
\r
- if (BusNumber != NULL) {\r
- *BusNumber = 0xff;\r
+ if ((SegmentNumber == NULL) || (BusNumber == NULL) ||\r
+ (DeviceNumber == NULL) || (FunctionNumber == NULL) ) {\r
+ return EFI_INVALID_PARAMETER;\r
}\r
\r
- if (DeviceNumber != NULL) {\r
- *DeviceNumber = 0;\r
- }\r
-\r
- if (FunctionNumber != NULL) {\r
- *FunctionNumber = 0;\r
- }\r
+ *SegmentNumber = Private->Segment;\r
+ *BusNumber = 0xff;\r
+ *DeviceNumber = 0;\r
+ *FunctionNumber = 0;\r
\r
return EFI_SUCCESS;\r
}\r
\r
+/**\r
+ Performs an operation on the attributes that this PCI controller supports.\r
+\r
+ The operations include getting the set of supported attributes, retrieving\r
+ the current attributes, setting the current attributes, enabling attributes,\r
+ and disabling attributes.\r
+\r
+ @param[in] This A pointer to the EFI_PCI_IO_PROTOCOL instance.\r
+ @param[in] Operation The operation to perform on the attributes for this\r
+ PCI controller.\r
+ @param[in] Attributes The mask of attributes that are used for Set,\r
+ Enable and Disable operations.\r
+ @param[out] Result A pointer to the result mask of attributes that are\r
+ returned for the Get and Supported operations. This\r
+ is an optional parameter that may be NULL for the\r
+ Set, Enable, and Disable operations.\r
+\r
+ @retval EFI_SUCCESS The operation on the PCI controller's\r
+ attributes was completed. If the operation\r
+ was Get or Supported, then the attribute mask\r
+ is returned in Result.\r
+ @retval EFI_INVALID_PARAMETER Operation is greater than or equal to\r
+ EfiPciIoAttributeOperationMaximum.\r
+ @retval EFI_INVALID_PARAMETER Operation is Get and Result is NULL.\r
+ @retval EFI_INVALID_PARAMETER Operation is Supported and Result is NULL.\r
+\r
+**/\r
EFI_STATUS\r
PciIoAttributes (\r
IN EFI_PCI_IO_PROTOCOL *This,\r
if (Result == NULL) {\r
return EFI_INVALID_PARAMETER;\r
}\r
+ //\r
// We are not a real PCI device so just say things we kind of do\r
- *Result = EFI_PCI_IO_ATTRIBUTE_MEMORY | EFI_PCI_IO_ATTRIBUTE_BUS_MASTER | EFI_PCI_DEVICE_ENABLE;\r
+ //\r
+ *Result = EFI_PCI_DEVICE_ENABLE;\r
break;\r
\r
case EfiPciIoAttributeOperationSet:\r
case EfiPciIoAttributeOperationEnable:\r
case EfiPciIoAttributeOperationDisable:\r
+ if (Attributes & (~EFI_PCI_DEVICE_ENABLE)) {\r
+ return EFI_UNSUPPORTED;\r
+ }\r
// Since we are not a real PCI device no enable/set or disable operations exist.\r
return EFI_SUCCESS;\r
\r
default:\r
- ASSERT (FALSE);\r
return EFI_INVALID_PARAMETER;\r
};\r
return EFI_SUCCESS;\r
projects / mirror_edk2.git / blobdiff