/** @file\r
PCI Segment Library implementation using PCI Root Bridge I/O Protocol.\r
\r
- Copyright (c) 2007 - 2009, Intel Corporation All rights\r
- reserved. This program and the accompanying materials are\r
+ Copyright (c) 2007 - 2017, Intel Corporation. All rights reserved.<BR>\r
+ This program and the accompanying materials are\r
licensed and made available under the terms and conditions of\r
the BSD License which accompanies this distribution. The full\r
text of the license may be found at\r
- http://opensource.org/licenses/bsd-license.php\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
#include "PciSegmentLib.h"\r
\r
//\r
-// Global varible to record data of PCI Root Bridge I/O Protcol instances\r
+// Global variable to record data of PCI Root Bridge I/O Protocol instances\r
//\r
PCI_ROOT_BRIDGE_DATA *mPciRootBridgeData = NULL;\r
UINTN mNumberOfPciRootBridges = 0;\r
\r
/**\r
- The constructor function caches data of PCI Root Bridge I/O Protcol instances.\r
+ The constructor function caches data of PCI Root Bridge I/O Protocol instances.\r
\r
The constructor function locates PCI Root Bridge I/O protocol instances,\r
and caches the protocol instances, together with their segment numbers and bus ranges.\r
This internal function extracts segment number and bus number data from address, and\r
retrieves the corresponding PCI Root Bridge I/O Protocol instance.\r
\r
- @param Address Address that encodes the Segment, PCI Bus, Device, Function and\r
+ @param Address The address that encodes the Segment, PCI Bus, Device, Function and\r
Register.\r
\r
@return The address for PCI Root Bridge I/O Protocol.\r
It reads and returns the PCI configuration register specified by Address,\r
the width of data is specified by Width.\r
\r
- @param Address Address that encodes the PCI Bus, Device, Function and\r
+ @param Address The address that encodes the PCI Bus, Device, Function and\r
Register.\r
@param Width Width of data to read\r
\r
value specified by Data. The width of data is specifed by Width.\r
Data is returned.\r
\r
- @param Address Address that encodes the PCI Bus, Device, Function and\r
+ @param Address The address that encodes the PCI Bus, Device, Function and\r
Register.\r
@param Width Width of data to write\r
@param Data The value to write.\r
\r
Reads and returns the 8-bit PCI configuration register specified by Address.\r
This function must guarantee that all PCI read and write operations are serialized.\r
- \r
+\r
If any reserved bits in Address are set, then ASSERT().\r
- \r
+\r
@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.\r
\r
@return The 8-bit PCI configuration register specified by Address.\r
\r
Writes the 8-bit PCI configuration register specified by Address with the value specified by Value.\r
Value is returned. This function must guarantee that all PCI read and write operations are serialized.\r
- \r
+\r
If any reserved bits in Address are set, then ASSERT().\r
\r
@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.\r
and writes the result to the 8-bit PCI configuration register specified by Address.\r
The value written to the PCI configuration register is returned.\r
This function must guarantee that all PCI read and write operations are serialized.\r
- \r
+\r
If any reserved bits in Address are set, then ASSERT().\r
\r
@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.\r
/**\r
Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit value,\r
followed a bitwise OR with another 8-bit value.\r
- \r
+\r
Reads the 8-bit PCI configuration register specified by Address,\r
performs a bitwise AND between the read result and the value specified by AndData,\r
performs a bitwise OR between the result of the AND operation and the value specified by OrData,\r
and writes the result to the 8-bit PCI configuration register specified by Address.\r
The value written to the PCI configuration register is returned.\r
This function must guarantee that all PCI read and write operations are serialized.\r
- \r
+\r
If any reserved bits in Address are set, then ASSERT().\r
\r
@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.\r
- @param AndData The value to AND with the PCI configuration register.\r
+ @param AndData The value to AND with the PCI configuration register.\r
@param OrData The value to OR with the PCI configuration register.\r
\r
@return The value written to the PCI configuration register.\r
If StartBit is greater than 7, then ASSERT().\r
If EndBit is greater than 7, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
+ If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
@param Address PCI configuration register to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
If StartBit is greater than 7, then ASSERT().\r
If EndBit is greater than 7, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
+ If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
@param Address PCI configuration register to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
If StartBit is greater than 7, then ASSERT().\r
If EndBit is greater than 7, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
+ If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
@param Address PCI configuration register to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
\r
/**\r
Reads a bit field in an 8-bit port, performs a bitwise AND followed by a\r
- bitwise OR, and writes the result back to the bit field in the\r
- 8-bit port.\r
+ bitwise OR, and writes the result back to the bit field in the 8-bit port.\r
\r
Reads the 8-bit PCI configuration register specified by Address, performs a\r
bitwise AND followed by a bitwise OR between the read result and\r
If StartBit is greater than 7, then ASSERT().\r
If EndBit is greater than 7, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
+ If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
+ If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
@param Address PCI configuration register to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
\r
Reads and returns the 16-bit PCI configuration register specified by Address.\r
This function must guarantee that all PCI read and write operations are serialized.\r
- \r
+\r
If any reserved bits in Address are set, then ASSERT().\r
If Address is not aligned on a 16-bit boundary, then ASSERT().\r
- \r
+\r
@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.\r
\r
@return The 16-bit PCI configuration register specified by Address.\r
\r
Writes the 16-bit PCI configuration register specified by Address with the value specified by Value.\r
Value is returned. This function must guarantee that all PCI read and write operations are serialized.\r
- \r
+\r
If any reserved bits in Address are set, then ASSERT().\r
If Address is not aligned on a 16-bit boundary, then ASSERT().\r
\r
a 16-bit value.\r
\r
Reads the 16-bit PCI configuration register specified by Address, performs a\r
- bitwise OR between the read result and the value specified by\r
- OrData, and writes the result to the 16-bit PCI configuration register\r
- specified by Address. The value written to the PCI configuration register is\r
- returned. This function must guarantee that all PCI read and write operations\r
- are serialized.\r
+ bitwise OR between the read result and the value specified by OrData, and\r
+ writes the result to the 16-bit PCI configuration register specified by Address.\r
+ The value written to the PCI configuration register is returned. This function\r
+ must guarantee that all PCI read and write operations are serialized.\r
\r
If any reserved bits in Address are set, then ASSERT().\r
If Address is not aligned on a 16-bit boundary, then ASSERT().\r
and writes the result to the 16-bit PCI configuration register specified by Address.\r
The value written to the PCI configuration register is returned.\r
This function must guarantee that all PCI read and write operations are serialized.\r
- \r
+\r
If any reserved bits in Address are set, then ASSERT().\r
If Address is not aligned on a 16-bit boundary, then ASSERT().\r
- \r
+\r
@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.\r
@param AndData The value to AND with the PCI configuration register.\r
\r
/**\r
Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit value,\r
followed a bitwise OR with another 16-bit value.\r
- \r
+\r
Reads the 16-bit PCI configuration register specified by Address,\r
performs a bitwise AND between the read result and the value specified by AndData,\r
performs a bitwise OR between the result of the AND operation and the value specified by OrData,\r
and writes the result to the 16-bit PCI configuration register specified by Address.\r
The value written to the PCI configuration register is returned.\r
This function must guarantee that all PCI read and write operations are serialized.\r
- \r
+\r
If any reserved bits in Address are set, then ASSERT().\r
If Address is not aligned on a 16-bit boundary, then ASSERT().\r
\r
@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.\r
- @param AndData The value to AND with the PCI configuration register.\r
+ @param AndData The value to AND with the PCI configuration register.\r
@param OrData The value to OR with the PCI configuration register.\r
\r
@return The value written to the PCI configuration register.\r
If StartBit is greater than 15, then ASSERT().\r
If EndBit is greater than 15, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
+ If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
@param Address PCI configuration register to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
}\r
\r
/**\r
- Reads the 16-bit PCI configuration register specified by Address,\r
- performs a bitwise OR between the read result and the value specified by OrData,\r
- and writes the result to the 16-bit PCI configuration register specified by Address. \r
+ Reads a bit field in a 16-bit PCI configuration, performs a bitwise OR, writes\r
+ the result back to the bit field in the 16-bit port.\r
+\r
+ Reads the 16-bit PCI configuration register specified by Address, performs a\r
+ bitwise OR between the read result and the value specified by\r
+ OrData, and writes the result to the 16-bit PCI configuration register\r
+ specified by Address. The value written to the PCI configuration register is\r
+ returned. This function must guarantee that all PCI read and write operations\r
+ are serialized. Extra left bits in OrData are stripped.\r
\r
If any reserved bits in Address are set, then ASSERT().\r
If Address is not aligned on a 16-bit boundary, then ASSERT().\r
If StartBit is greater than 15, then ASSERT().\r
If EndBit is greater than 15, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
+ If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
@param Address PCI configuration register to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
}\r
\r
/**\r
- Reads a bit field in a 16-bit PCI configuration, performs a bitwise OR,\r
- and writes the result back to the bit field in the 16-bit port.\r
+ Reads a bit field in a 16-bit PCI configuration register, performs a bitwise\r
+ AND, writes the result back to the bit field in the 16-bit register.\r
+\r
+ Reads the 16-bit PCI configuration register specified by Address, performs a\r
+ bitwise AND between the read result and the value specified by AndData, and\r
+ writes the result to the 16-bit PCI configuration register specified by\r
+ Address. The value written to the PCI configuration register is returned.\r
+ This function must guarantee that all PCI read and write operations are\r
+ serialized. Extra left bits in AndData are stripped.\r
\r
- Reads the 16-bit PCI configuration register specified by Address,\r
- performs a bitwise OR between the read result and the value specified by OrData,\r
- and writes the result to the 16-bit PCI configuration register specified by Address.\r
- The value written to the PCI configuration register is returned.\r
- This function must guarantee that all PCI read and write operations are serialized.\r
- Extra left bits in OrData are stripped.\r
- \r
If any reserved bits in Address are set, then ASSERT().\r
If Address is not aligned on a 16-bit boundary, then ASSERT().\r
- If StartBit is greater than 7, then ASSERT().\r
- If EndBit is greater than 7, then ASSERT().\r
+ If StartBit is greater than 15, then ASSERT().\r
+ If EndBit is greater than 15, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
+ If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
@param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
- The ordinal of the least significant bit in a byte is bit 0.\r
+ Range 0..15.\r
@param EndBit The ordinal of the most significant bit in the bit field.\r
- The ordinal of the most significant bit in a byte is bit 7.\r
- @param AndData The value to AND with the read value from the PCI configuration register.\r
+ Range 0..15.\r
+ @param AndData The value to AND with the PCI configuration register.\r
\r
- @return The value written to the PCI configuration register.\r
+ @return The value written back to the PCI configuration register.\r
\r
**/\r
UINT16\r
If StartBit is greater than 15, then ASSERT().\r
If EndBit is greater than 15, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
+ If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
+ If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
@param Address PCI configuration register to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
\r
Reads and returns the 32-bit PCI configuration register specified by Address.\r
This function must guarantee that all PCI read and write operations are serialized.\r
- \r
+\r
If any reserved bits in Address are set, then ASSERT().\r
If Address is not aligned on a 32-bit boundary, then ASSERT().\r
\r
\r
Writes the 32-bit PCI configuration register specified by Address with the value specified by Value.\r
Value is returned. This function must guarantee that all PCI read and write operations are serialized.\r
- \r
+\r
If any reserved bits in Address are set, then ASSERT().\r
If Address is not aligned on a 32-bit boundary, then ASSERT().\r
\r
and writes the result to the 32-bit PCI configuration register specified by Address.\r
The value written to the PCI configuration register is returned.\r
This function must guarantee that all PCI read and write operations are serialized.\r
- \r
+\r
If any reserved bits in Address are set, then ASSERT().\r
If Address is not aligned on a 32-bit boundary, then ASSERT().\r
\r
and writes the result to the 32-bit PCI configuration register specified by Address.\r
The value written to the PCI configuration register is returned.\r
This function must guarantee that all PCI read and write operations are serialized.\r
- \r
+\r
If any reserved bits in Address are set, then ASSERT().\r
If Address is not aligned on a 32-bit boundary, then ASSERT().\r
\r
/**\r
Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit value,\r
followed a bitwise OR with another 32-bit value.\r
- \r
+\r
Reads the 32-bit PCI configuration register specified by Address,\r
performs a bitwise AND between the read result and the value specified by AndData,\r
performs a bitwise OR between the result of the AND operation and the value specified by OrData,\r
and writes the result to the 32-bit PCI configuration register specified by Address.\r
The value written to the PCI configuration register is returned.\r
This function must guarantee that all PCI read and write operations are serialized.\r
- \r
+\r
If any reserved bits in Address are set, then ASSERT().\r
If Address is not aligned on a 32-bit boundary, then ASSERT().\r
\r
If StartBit is greater than 31, then ASSERT().\r
If EndBit is greater than 31, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
+ If Value is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
@param Address PCI configuration register to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
If StartBit is greater than 31, then ASSERT().\r
If EndBit is greater than 31, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
+ If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
@param Address PCI configuration register to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
Reads a bit field in a 32-bit PCI configuration register, performs a bitwise\r
AND, and writes the result back to the bit field in the 32-bit register.\r
\r
- \r
+\r
Reads the 32-bit PCI configuration register specified by Address, performs a bitwise\r
AND between the read result and the value specified by AndData, and writes the result\r
to the 32-bit PCI configuration register specified by Address. The value written to\r
If StartBit is greater than 31, then ASSERT().\r
If EndBit is greater than 31, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
- \r
+ If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
- @param Address PCI configuration register to write.\r
+ @param Address Address that encodes the PCI Segment, Bus, Device, Function, and Register.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
Range 0..31.\r
@param EndBit The ordinal of the most significant bit in the bit field.\r
If StartBit is greater than 31, then ASSERT().\r
If EndBit is greater than 31, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
+ If AndData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
+ If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT().\r
\r
@param Address PCI configuration register to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
//\r
// Read a word if StartAddress is word aligned\r
//\r
- *(volatile UINT16 *)Buffer = PciSegmentRead16 (StartAddress);\r
+ WriteUnaligned16 (Buffer, PciSegmentRead16 (StartAddress));\r
StartAddress += sizeof (UINT16);\r
Size -= sizeof (UINT16);\r
Buffer = (UINT16*)Buffer + 1;\r
//\r
// Read as many double words as possible\r
//\r
- *(volatile UINT32 *)Buffer = PciSegmentRead32 (StartAddress);\r
+ WriteUnaligned32 (Buffer, PciSegmentRead32 (StartAddress));\r
StartAddress += sizeof (UINT32);\r
Size -= sizeof (UINT32);\r
Buffer = (UINT32*)Buffer + 1;\r
//\r
// Read the last remaining word if exist\r
//\r
- *(volatile UINT16 *)Buffer = PciSegmentRead16 (StartAddress);\r
+ WriteUnaligned16 (Buffer, PciSegmentRead16 (StartAddress));\r
StartAddress += sizeof (UINT16);\r
Size -= sizeof (UINT16);\r
Buffer = (UINT16*)Buffer + 1;\r
//\r
// Write a word if StartAddress is word aligned\r
//\r
- PciSegmentWrite16 (StartAddress, *(UINT16*)Buffer);\r
+ PciSegmentWrite16 (StartAddress, ReadUnaligned16 (Buffer));\r
StartAddress += sizeof (UINT16);\r
Size -= sizeof (UINT16);\r
Buffer = (UINT16*)Buffer + 1;\r
//\r
// Write as many double words as possible\r
//\r
- PciSegmentWrite32 (StartAddress, *(UINT32*)Buffer);\r
+ PciSegmentWrite32 (StartAddress, ReadUnaligned32 (Buffer));\r
StartAddress += sizeof (UINT32);\r
Size -= sizeof (UINT32);\r
Buffer = (UINT32*)Buffer + 1;\r
//\r
// Write the last remaining word if exist\r
//\r
- PciSegmentWrite16 (StartAddress, *(UINT16*)Buffer);\r
+ PciSegmentWrite16 (StartAddress, ReadUnaligned16 (Buffer));\r
StartAddress += sizeof (UINT16);\r
Size -= sizeof (UINT16);\r
Buffer = (UINT16*)Buffer + 1;\r
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