/** @file\r
Produces the SMM CPU I/O Protocol.\r
\r
-Copyright (c) 2009 - 2017, Intel Corporation. All rights reserved.<BR>\r
-This program and the accompanying materials \r
-are licensed and made available under the terms and conditions of the BSD License \r
-which accompanies this distribution. The full text of the license may be found at \r
-http://opensource.org/licenses/bsd-license.php \r
- \r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
+Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>\r
+This program and the accompanying materials\r
+are licensed and made available under the terms and conditions of the BSD License\r
+which accompanies this distribution. The full text of the license may be found at\r
+http://opensource.org/licenses/bsd-license.php\r
+\r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
\r
@param[in] MmioOperation TRUE for an MMIO operation, FALSE for I/O Port operation.\r
@param[in] Width Signifies the width of the I/O operations.\r
- @param[in] Address The base address of the I/O operations. The caller is \r
- responsible for aligning the Address if required. \r
+ @param[in] Address The base address of the I/O operations. The caller is\r
+ responsible for aligning the Address if required.\r
@param[in] Count The number of I/O operations to perform.\r
- @param[in] Buffer For read operations, the destination buffer to store \r
- the results. For write operations, the source buffer \r
+ @param[in] Buffer For read operations, the destination buffer to store\r
+ the results. For write operations, the source buffer\r
from which to write data.\r
\r
@retval EFI_SUCCESS The data was read from or written to the device.\r
@retval EFI_UNSUPPORTED The Address is not valid for this system.\r
@retval EFI_INVALID_PARAMETER Width or Count, or both, were invalid.\r
- \r
+\r
**/\r
EFI_STATUS\r
CpuIoCheckParameter (\r
if (!MmioOperation && (Width == SMM_IO_UINT64)) {\r
return EFI_INVALID_PARAMETER;\r
}\r
- \r
+\r
//\r
- // Check to see if any address associated with this transfer exceeds the maximum \r
+ // Check to see if any address associated with this transfer exceeds the maximum\r
// allowed address. The maximum address implied by the parameters passed in is\r
// Address + Size * Count. If the following condition is met, then the transfer\r
// is not supported.\r
//\r
// Address + Size * Count > (MmioOperation ? MAX_ADDRESS : MAX_IO_PORT_ADDRESS) + 1\r
//\r
- // Since MAX_ADDRESS can be the maximum integer value supported by the CPU and Count \r
+ // Since MAX_ADDRESS can be the maximum integer value supported by the CPU and Count\r
// can also be the maximum integer value supported by the CPU, this range\r
// check must be adjusted to avoid all overflow conditions.\r
- // \r
- // The following form of the range check is equivalent but assumes that \r
+ //\r
+ // The following form of the range check is equivalent but assumes that\r
// MAX_ADDRESS and MAX_IO_PORT_ADDRESS are of the form (2^n - 1).\r
//\r
Limit = (MmioOperation ? MAX_ADDRESS : MAX_IO_PORT_ADDRESS);\r
if (Address > Limit) {\r
return EFI_UNSUPPORTED;\r
}\r
- } else { \r
+ } else {\r
MaxCount = RShiftU64 (Limit, Width);\r
if (MaxCount < (Count - 1)) {\r
return EFI_UNSUPPORTED;\r
return EFI_UNSUPPORTED;\r
}\r
}\r
- \r
+\r
//\r
// Check to see if Address is aligned\r
//\r
/**\r
Reads memory-mapped registers.\r
\r
- The I/O operations are carried out exactly as requested. The caller is \r
- responsible for any alignment and I/O width issues that the bus, device, \r
+ The I/O operations are carried out exactly as requested. The caller is\r
+ responsible for any alignment and I/O width issues that the bus, device,\r
platform, or type of I/O might require.\r
\r
@param[in] This The EFI_SMM_CPU_IO2_PROTOCOL instance.\r
@param[in] Width Signifies the width of the I/O operations.\r
- @param[in] Address The base address of the I/O operations. The caller is \r
- responsible for aligning the Address if required. \r
+ @param[in] Address The base address of the I/O operations. The caller is\r
+ responsible for aligning the Address if required.\r
@param[in] Count The number of I/O operations to perform.\r
- @param[out] Buffer For read operations, the destination buffer to store \r
- the results. For write operations, the source buffer \r
+ @param[out] Buffer For read operations, the destination buffer to store\r
+ the results. For write operations, the source buffer\r
from which to write data.\r
\r
@retval EFI_SUCCESS The data was read from or written to the device.\r
@retval EFI_UNSUPPORTED The Address is not valid for this system.\r
@retval EFI_INVALID_PARAMETER Width or Count, or both, were invalid.\r
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a \r
+ @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a\r
lack of resources\r
\r
**/\r
/**\r
Writes memory-mapped registers.\r
\r
- The I/O operations are carried out exactly as requested. The caller is \r
- responsible for any alignment and I/O width issues that the bus, device, \r
+ The I/O operations are carried out exactly as requested. The caller is\r
+ responsible for any alignment and I/O width issues that the bus, device,\r
platform, or type of I/O might require.\r
\r
@param[in] This The EFI_SMM_CPU_IO2_PROTOCOL instance.\r
@param[in] Width Signifies the width of the I/O operations.\r
- @param[in] Address The base address of the I/O operations. The caller is \r
- responsible for aligning the Address if required. \r
+ @param[in] Address The base address of the I/O operations. The caller is\r
+ responsible for aligning the Address if required.\r
@param[in] Count The number of I/O operations to perform.\r
- @param[in] Buffer For read operations, the destination buffer to store \r
- the results. For write operations, the source buffer \r
+ @param[in] Buffer For read operations, the destination buffer to store\r
+ the results. For write operations, the source buffer\r
from which to write data.\r
\r
@retval EFI_SUCCESS The data was read from or written to the device.\r
@retval EFI_UNSUPPORTED The Address is not valid for this system.\r
@retval EFI_INVALID_PARAMETER Width or Count, or both, were invalid.\r
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a \r
+ @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a\r
lack of resources\r
\r
**/\r
/**\r
Reads I/O registers.\r
\r
- The I/O operations are carried out exactly as requested. The caller is \r
- responsible for any alignment and I/O width issues that the bus, device, \r
+ The I/O operations are carried out exactly as requested. The caller is\r
+ responsible for any alignment and I/O width issues that the bus, device,\r
platform, or type of I/O might require.\r
\r
@param[in] This The EFI_SMM_CPU_IO2_PROTOCOL instance.\r
@param[in] Width Signifies the width of the I/O operations.\r
- @param[in] Address The base address of the I/O operations. The caller is \r
- responsible for aligning the Address if required. \r
+ @param[in] Address The base address of the I/O operations. The caller is\r
+ responsible for aligning the Address if required.\r
@param[in] Count The number of I/O operations to perform.\r
- @param[out] Buffer For read operations, the destination buffer to store \r
- the results. For write operations, the source buffer \r
+ @param[out] Buffer For read operations, the destination buffer to store\r
+ the results. For write operations, the source buffer\r
from which to write data.\r
\r
@retval EFI_SUCCESS The data was read from or written to the device.\r
@retval EFI_UNSUPPORTED The Address is not valid for this system.\r
@retval EFI_INVALID_PARAMETER Width or Count, or both, were invalid.\r
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a \r
+ @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a\r
lack of resources\r
\r
**/\r
/**\r
Write I/O registers.\r
\r
- The I/O operations are carried out exactly as requested. The caller is \r
- responsible for any alignment and I/O width issues that the bus, device, \r
+ The I/O operations are carried out exactly as requested. The caller is\r
+ responsible for any alignment and I/O width issues that the bus, device,\r
platform, or type of I/O might require.\r
\r
@param[in] This The EFI_SMM_CPU_IO2_PROTOCOL instance.\r
@param[in] Width Signifies the width of the I/O operations.\r
- @param[in] Address The base address of the I/O operations. The caller is \r
- responsible for aligning the Address if required. \r
+ @param[in] Address The base address of the I/O operations. The caller is\r
+ responsible for aligning the Address if required.\r
@param[in] Count The number of I/O operations to perform.\r
- @param[in] Buffer For read operations, the destination buffer to store \r
- the results. For write operations, the source buffer \r
+ @param[in] Buffer For read operations, the destination buffer to store\r
+ the results. For write operations, the source buffer\r
from which to write data.\r
\r
@retval EFI_SUCCESS The data was read from or written to the device.\r
@retval EFI_UNSUPPORTED The Address is not valid for this system.\r
@retval EFI_INVALID_PARAMETER Width or Count, or both, were invalid.\r
- @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a \r
+ @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a\r
lack of resources\r
\r
**/\r
IoWrite32 ((UINTN)Address, *((UINT32 *)Uint8Buffer));\r
}\r
}\r
- \r
+\r
return EFI_SUCCESS;\r
}\r
\r
&mSmmCpuIo2\r
);\r
ASSERT_EFI_ERROR (Status);\r
- \r
+\r
return Status;\r
}\r
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