PCI CF8 Library functions that use I/O ports 0xCF8 and 0xCFC to perform PCI Configuration cycles.\r
Layers on top of an I/O Library instance.\r
\r
- Copyright (c) 2006 - 2008, Intel Corporation<BR>\r
- All rights reserved. This program and the accompanying materials\r
+ Copyright (c) 2006 - 2010, 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
+ 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
ASSERT (((A) & (~0xffff0ff | (M))) == 0)\r
\r
/**\r
- Register a PCI device so PCI configuration registers may be accessed after \r
+ Registers a PCI device so PCI configuration registers may be accessed after \r
SetVirtualAddressMap().\r
\r
+ Registers the PCI device specified by Address so all the PCI configuration registers \r
+ associated with that PCI device may be accessed after SetVirtualAddressMap() is called.\r
+ \r
If Address > 0x0FFFFFFF, then ASSERT().\r
+ If the register specified by Address >= 0x100, then ASSERT().\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
\r
@retval RETURN_SUCCESS The PCI device was registered for runtime access.\r
IN UINTN Address\r
)\r
{\r
+ ASSERT_INVALID_PCI_ADDRESS (Address, 0);\r
return RETURN_SUCCESS;\r
}\r
\r
If Address > 0x0FFFFFFF, then ASSERT().\r
If the register specified by Address >= 0x100, then ASSERT().\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
\r
@return The read value from the PCI configuration register.\r
IN UINTN Address\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT8 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 0);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoRead8 (PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3));\r
+ Result = IoRead8 (PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3));\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
If Address > 0x0FFFFFFF, then ASSERT().\r
If the register specified by Address >= 0x100, then ASSERT().\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 Value The value to write.\r
\r
IN UINT8 Value\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT8 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 0);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoWrite8 (\r
- PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3),\r
- Value\r
- );\r
+ Result = IoWrite8 (\r
+ PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3),\r
+ Value\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
- Performs a bitwise inclusive OR of an 8-bit PCI configuration register with\r
+ Performs a bitwise OR of an 8-bit PCI configuration register with\r
an 8-bit value.\r
\r
Reads the 8-bit PCI configuration register specified by Address, performs a\r
- bitwise inclusive OR between the read result and the value specified by\r
+ bitwise OR between the read result and the value specified by\r
OrData, and writes the result to the 8-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
If Address > 0x0FFFFFFF, then ASSERT().\r
If the register specified by Address >= 0x100, then ASSERT().\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 OrData The value to OR with the PCI configuration register.\r
\r
IN UINT8 OrData\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT8 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 0);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoOr8 (\r
- PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3),\r
- OrData\r
- );\r
+ Result = IoOr8 (\r
+ PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3),\r
+ OrData\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
If Address > 0x0FFFFFFF, then ASSERT().\r
If the register specified by Address >= 0x100, then ASSERT().\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 AndData The value to AND with the PCI configuration register.\r
\r
IN UINT8 AndData\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT8 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 0);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoAnd8 (\r
- PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3),\r
- AndData\r
- );\r
+ Result = IoAnd8 (\r
+ PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3),\r
+ AndData\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
Performs a bitwise AND of an 8-bit PCI configuration register with an 8-bit\r
- value, followed a bitwise inclusive OR with another 8-bit value.\r
+ value, followed a bitwise OR with another 8-bit value.\r
\r
Reads the 8-bit PCI configuration register specified by Address, performs a\r
bitwise AND between the read result and the value specified by AndData,\r
- performs a bitwise inclusive OR between the result of the AND operation and\r
+ performs a bitwise OR between the result of the AND operation and\r
the value specified by OrData, and writes the result to the 8-bit PCI\r
configuration register specified by Address. The value written to the PCI\r
configuration register is returned. This function must guarantee that all PCI\r
If Address > 0x0FFFFFFF, then ASSERT().\r
If the register specified by Address >= 0x100, then ASSERT().\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 AndData The value to AND with the PCI configuration register.\r
@param OrData The value to OR with the result of the AND operation.\r
IN UINT8 OrData\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT8 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 0);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoAndThenOr8 (\r
- PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3),\r
- AndData,\r
- OrData\r
- );\r
+ Result = IoAndThenOr8 (\r
+ PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3),\r
+ AndData,\r
+ OrData\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
If EndBit is greater than 7, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
\r
- @param Address PCI configuration register to read.\r
+ @param Address The PCI configuration register to read.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
Range 0..7.\r
@param EndBit The ordinal of the most significant bit in the bit field.\r
IN UINTN EndBit\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT8 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 0);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoBitFieldRead8 (\r
- PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3),\r
- StartBit,\r
- EndBit\r
- );\r
+ Result = IoBitFieldRead8 (\r
+ PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3),\r
+ StartBit,\r
+ EndBit\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
If EndBit is greater than 7, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
\r
- @param Address PCI configuration register to write.\r
+ @param Address The PCI configuration register to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
Range 0..7.\r
@param EndBit The ordinal of the most significant bit in the bit field.\r
Range 0..7.\r
- @param Value New value of the bit field.\r
+ @param Value The new value of the bit field.\r
\r
@return The value written back to the PCI configuration register.\r
\r
IN UINT8 Value\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT8 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 0);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoBitFieldWrite8 (\r
- PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3),\r
- StartBit,\r
- EndBit,\r
- Value\r
- );\r
+ Result = IoBitFieldWrite8 (\r
+ PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3),\r
+ StartBit,\r
+ EndBit,\r
+ Value\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
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 inclusive OR between the read result and the value specified by\r
+ bitwise OR between the read result and the value specified by\r
OrData, and writes the result to the 8-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
If EndBit is greater than 7, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
\r
- @param Address PCI configuration register to write.\r
+ @param Address The PCI configuration register to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
Range 0..7.\r
@param EndBit The ordinal of the most significant bit in the bit field.\r
IN UINT8 OrData\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT8 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 0);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoBitFieldOr8 (\r
- PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3),\r
- StartBit,\r
- EndBit,\r
- OrData\r
- );\r
+ Result = IoBitFieldOr8 (\r
+ PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3),\r
+ StartBit,\r
+ EndBit,\r
+ OrData\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
If EndBit is greater than 7, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
\r
- @param Address PCI configuration register to write.\r
+ @param Address The PCI configuration register to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
Range 0..7.\r
@param EndBit The ordinal of the most significant bit in the bit field.\r
IN UINT8 AndData\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT8 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 0);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoBitFieldAnd8 (\r
- PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3),\r
- StartBit,\r
- EndBit,\r
- AndData\r
- );\r
+ Result = IoBitFieldAnd8 (\r
+ PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3),\r
+ StartBit,\r
+ EndBit,\r
+ AndData\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
Reads a bit field in an 8-bit port, performs a bitwise AND followed by a\r
- bitwise inclusive OR, and writes the result back to the bit field in the\r
+ bitwise OR, and writes the result back to the bit field in the\r
8-bit port.\r
\r
Reads the 8-bit PCI configuration register specified by Address, performs a\r
- bitwise AND followed by a bitwise inclusive OR between the read result and\r
+ bitwise AND followed by a bitwise OR between the read result and\r
the value specified by AndData, and writes the result to the 8-bit PCI\r
configuration register specified by Address. The value written to the PCI\r
configuration register is returned. This function must guarantee that all PCI\r
If EndBit is greater than 7, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
\r
- @param Address PCI configuration register to write.\r
+ @param Address The PCI configuration register to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
Range 0..7.\r
@param EndBit The ordinal of the most significant bit in the bit field.\r
IN UINT8 OrData\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT8 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 0);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoBitFieldAndThenOr8 (\r
- PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3),\r
- StartBit,\r
- EndBit,\r
- AndData,\r
- OrData\r
- );\r
+ Result = IoBitFieldAndThenOr8 (\r
+ PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 3),\r
+ StartBit,\r
+ EndBit,\r
+ AndData,\r
+ OrData\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
If Address is not aligned on a 16-bit boundary, then ASSERT().\r
If the register specified by Address >= 0x100, then ASSERT().\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
\r
@return The read value from the PCI configuration register.\r
IN UINTN Address\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT16 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 1);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoRead16 (PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2));\r
+ Result = IoRead16 (PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2));\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
If Address is not aligned on a 16-bit boundary, then ASSERT().\r
If the register specified by Address >= 0x100, then ASSERT().\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 Value The value to write.\r
\r
IN UINT16 Value\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT16 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 1);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoWrite16 (\r
- PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2),\r
- Value\r
- );\r
+ Result = IoWrite16 (\r
+ PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2),\r
+ Value\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
- Performs a bitwise inclusive OR of a 16-bit PCI configuration register with\r
+ Performs a bitwise OR of a 16-bit PCI configuration register with\r
a 16-bit value.\r
\r
Reads the 16-bit PCI configuration register specified by Address, performs a\r
- bitwise inclusive OR between the read result and the value specified by\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
If Address is not aligned on a 16-bit boundary, then ASSERT().\r
If the register specified by Address >= 0x100, then ASSERT().\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 OrData The value to OR with the PCI configuration register.\r
\r
IN UINT16 OrData\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT16 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 1);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoOr16 (\r
- PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2),\r
- OrData\r
- );\r
+ Result = IoOr16 (\r
+ PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2),\r
+ OrData\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
If Address is not aligned on a 16-bit boundary, then ASSERT().\r
If the register specified by Address >= 0x100, then ASSERT().\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 AndData The value to AND with the PCI configuration register.\r
\r
IN UINT16 AndData\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT16 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 1);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoAnd16 (\r
- PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2),\r
- AndData\r
- );\r
+ Result = IoAnd16 (\r
+ PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2),\r
+ AndData\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
Performs a bitwise AND of a 16-bit PCI configuration register with a 16-bit\r
- value, followed a bitwise inclusive OR with another 16-bit value.\r
+ value, followed a bitwise OR with another 16-bit value.\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,\r
- performs a bitwise inclusive OR between the result of the AND operation and\r
+ performs a bitwise OR between the result of the AND operation and\r
the value specified by OrData, and writes the result to the 16-bit PCI\r
configuration register specified by Address. The value written to the PCI\r
configuration register is returned. This function must guarantee that all PCI\r
If Address is not aligned on a 16-bit boundary, then ASSERT().\r
If the register specified by Address >= 0x100, then ASSERT().\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 AndData The value to AND with the PCI configuration register.\r
@param OrData The value to OR with the result of the AND operation.\r
IN UINT16 OrData\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT16 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 1);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoAndThenOr16 (\r
- PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2),\r
- AndData,\r
- OrData\r
- );\r
+ Result = IoAndThenOr16 (\r
+ PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2),\r
+ AndData,\r
+ OrData\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
If EndBit is greater than 15, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
\r
- @param Address PCI configuration register to read.\r
+ @param Address The PCI configuration register to read.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
Range 0..15.\r
@param EndBit The ordinal of the most significant bit in the bit field.\r
IN UINTN EndBit\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT16 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 1);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoBitFieldRead16 (\r
- PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2),\r
- StartBit,\r
- EndBit\r
- );\r
+ Result = IoBitFieldRead16 (\r
+ PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2),\r
+ StartBit,\r
+ EndBit\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
If EndBit is greater than 15, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
\r
- @param Address PCI configuration register to write.\r
+ @param Address The PCI configuration register to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
Range 0..15.\r
@param EndBit The ordinal of the most significant bit in the bit field.\r
Range 0..15.\r
- @param Value New value of the bit field.\r
+ @param Value The new value of the bit field.\r
\r
@return The value written back to the PCI configuration register.\r
\r
IN UINT16 Value\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT16 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 1);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoBitFieldWrite16 (\r
- PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2),\r
- StartBit,\r
- EndBit,\r
- Value\r
- );\r
+ Result = IoBitFieldWrite16 (\r
+ PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2),\r
+ StartBit,\r
+ EndBit,\r
+ Value\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
writes 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 inclusive OR between the read result and the value specified by\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
If EndBit is greater than 15, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
\r
- @param Address PCI configuration register to write.\r
+ @param Address The PCI configuration register to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
Range 0..15.\r
@param EndBit The ordinal of the most significant bit in the bit field.\r
IN UINT16 OrData\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT16 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 1);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoBitFieldOr16 (\r
- PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2),\r
- StartBit,\r
- EndBit,\r
- OrData\r
- );\r
+ Result = IoBitFieldOr16 (\r
+ PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2),\r
+ StartBit,\r
+ EndBit,\r
+ OrData\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
If EndBit is greater than 15, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
\r
- @param Address PCI configuration register to write.\r
+ @param Address The PCI configuration register to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
Range 0..15.\r
@param EndBit The ordinal of the most significant bit in the bit field.\r
IN UINT16 AndData\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT16 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 1);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoBitFieldAnd16 (\r
- PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2),\r
- StartBit,\r
- EndBit,\r
- AndData\r
- );\r
+ Result = IoBitFieldAnd16 (\r
+ PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2),\r
+ StartBit,\r
+ EndBit,\r
+ AndData\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
Reads a bit field in a 16-bit port, performs a bitwise AND followed by a\r
- bitwise inclusive OR, and writes the result back to the bit field in the\r
+ bitwise OR, and writes the result back to the bit field in the\r
16-bit port.\r
\r
Reads the 16-bit PCI configuration register specified by Address, performs a\r
- bitwise AND followed by a bitwise inclusive OR between the read result and\r
+ bitwise AND followed by a bitwise OR between the read result and\r
the value specified by AndData, and writes the result to the 16-bit PCI\r
configuration register specified by Address. The value written to the PCI\r
configuration register is returned. This function must guarantee that all PCI\r
If EndBit is greater than 15, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
\r
- @param Address PCI configuration register to write.\r
+ @param Address The PCI configuration register to write.\r
@param StartBit The ordinal of the least significant bit in the bit field.\r
Range 0..15.\r
@param EndBit The ordinal of the most significant bit in the bit field.\r
IN UINT16 OrData\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT16 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 1);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoBitFieldAndThenOr16 (\r
- PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2),\r
- StartBit,\r
- EndBit,\r
- AndData,\r
- OrData\r
- );\r
+ Result = IoBitFieldAndThenOr16 (\r
+ PCI_CONFIGURATION_DATA_PORT + (UINT16)(Address & 2),\r
+ StartBit,\r
+ EndBit,\r
+ AndData,\r
+ OrData\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
If Address is not aligned on a 32-bit boundary, then ASSERT().\r
If the register specified by Address >= 0x100, then ASSERT().\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
\r
@return The read value from the PCI configuration register.\r
IN UINTN Address\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT32 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 3);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoRead32 (PCI_CONFIGURATION_DATA_PORT);\r
+ Result = IoRead32 (PCI_CONFIGURATION_DATA_PORT);\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
If Address is not aligned on a 32-bit boundary, then ASSERT().\r
If the register specified by Address >= 0x100, then ASSERT().\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 Value The value to write.\r
\r
IN UINT32 Value\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT32 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 3);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoWrite32 (\r
- PCI_CONFIGURATION_DATA_PORT,\r
- Value\r
- );\r
+ Result = IoWrite32 (\r
+ PCI_CONFIGURATION_DATA_PORT,\r
+ Value\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
- Performs a bitwise inclusive OR of a 32-bit PCI configuration register with\r
+ Performs a bitwise OR of a 32-bit PCI configuration register with\r
a 32-bit value.\r
\r
Reads the 32-bit PCI configuration register specified by Address, performs a\r
- bitwise inclusive OR between the read result and the value specified by\r
+ bitwise OR between the read result and the value specified by\r
OrData, and writes the result to the 32-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
If Address is not aligned on a 32-bit boundary, then ASSERT().\r
If the register specified by Address >= 0x100, then ASSERT().\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 OrData The value to OR with the PCI configuration register.\r
\r
IN UINT32 OrData\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT32 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 3);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoOr32 (\r
- PCI_CONFIGURATION_DATA_PORT,\r
- OrData\r
- );\r
+ Result = IoOr32 (\r
+ PCI_CONFIGURATION_DATA_PORT,\r
+ OrData\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
If Address is not aligned on a 32-bit boundary, then ASSERT().\r
If the register specified by Address >= 0x100, then ASSERT().\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 AndData The value to AND with the PCI configuration register.\r
\r
IN UINT32 AndData\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT32 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 3);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoAnd32 (\r
- PCI_CONFIGURATION_DATA_PORT,\r
- AndData\r
- );\r
+ Result = IoAnd32 (\r
+ PCI_CONFIGURATION_DATA_PORT,\r
+ AndData\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
Performs a bitwise AND of a 32-bit PCI configuration register with a 32-bit\r
- value, followed a bitwise inclusive OR with another 32-bit value.\r
+ value, followed a bitwise OR with another 32-bit value.\r
\r
Reads the 32-bit PCI configuration register specified by Address, performs a\r
bitwise AND between the read result and the value specified by AndData,\r
- performs a bitwise inclusive OR between the result of the AND operation and\r
+ performs a bitwise OR between the result of the AND operation and\r
the value specified by OrData, and writes the result to the 32-bit PCI\r
configuration register specified by Address. The value written to the PCI\r
configuration register is returned. This function must guarantee that all PCI\r
If Address is not aligned on a 32-bit boundary, then ASSERT().\r
If the register specified by Address >= 0x100, then ASSERT().\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 AndData The value to AND with the PCI configuration register.\r
@param OrData The value to OR with the result of the AND operation.\r
IN UINT32 OrData\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT32 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 3);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoAndThenOr32 (\r
- PCI_CONFIGURATION_DATA_PORT,\r
- AndData,\r
- OrData\r
- );\r
+ Result = IoAndThenOr32 (\r
+ PCI_CONFIGURATION_DATA_PORT,\r
+ AndData,\r
+ OrData\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
If EndBit is greater than 31, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
\r
- @param Address PCI configuration register to read.\r
+ @param Address The PCI configuration register to read.\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
IN UINTN EndBit\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT32 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 3);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoBitFieldRead32 (\r
- PCI_CONFIGURATION_DATA_PORT,\r
- StartBit,\r
- EndBit\r
- );\r
+ Result = IoBitFieldRead32 (\r
+ PCI_CONFIGURATION_DATA_PORT,\r
+ StartBit,\r
+ EndBit\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
If EndBit is greater than 31, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
\r
- @param Address PCI configuration register to write.\r
+ @param Address The PCI configuration register to write.\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
Range 0..31.\r
- @param Value New value of the bit field.\r
+ @param Value The new value of the bit field.\r
\r
@return The value written back to the PCI configuration register.\r
\r
IN UINT32 Value\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT32 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 3);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoBitFieldWrite32 (\r
- PCI_CONFIGURATION_DATA_PORT,\r
- StartBit,\r
- EndBit,\r
- Value\r
- );\r
+ Result = IoBitFieldWrite32 (\r
+ PCI_CONFIGURATION_DATA_PORT,\r
+ StartBit,\r
+ EndBit,\r
+ Value\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
writes the result back to the bit field in the 32-bit port.\r
\r
Reads the 32-bit PCI configuration register specified by Address, performs a\r
- bitwise inclusive OR between the read result and the value specified by\r
+ bitwise OR between the read result and the value specified by\r
OrData, and writes the result to the 32-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
If EndBit is greater than 31, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
\r
- @param Address PCI configuration register to write.\r
+ @param Address The PCI configuration register to write.\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
IN UINT32 OrData\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT32 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 3);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoBitFieldOr32 (\r
- PCI_CONFIGURATION_DATA_PORT,\r
- StartBit,\r
- EndBit,\r
- OrData\r
- );\r
+ Result = IoBitFieldOr32 (\r
+ PCI_CONFIGURATION_DATA_PORT,\r
+ StartBit,\r
+ EndBit,\r
+ OrData\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
If EndBit is greater than 31, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
\r
- @param Address PCI configuration register to write.\r
+ @param Address The PCI configuration register to write.\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
IN UINT32 AndData\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT32 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 3);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoBitFieldAnd32 (\r
- PCI_CONFIGURATION_DATA_PORT,\r
- StartBit,\r
- EndBit,\r
- AndData\r
- );\r
+ Result = IoBitFieldAnd32 (\r
+ PCI_CONFIGURATION_DATA_PORT,\r
+ StartBit,\r
+ EndBit,\r
+ AndData\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
Reads a bit field in a 32-bit port, performs a bitwise AND followed by a\r
- bitwise inclusive OR, and writes the result back to the bit field in the\r
+ bitwise OR, and writes the result back to the bit field in the\r
32-bit port.\r
\r
Reads the 32-bit PCI configuration register specified by Address, performs a\r
- bitwise AND followed by a bitwise inclusive OR between the read result and\r
+ bitwise AND followed by a bitwise OR between the read result and\r
the value specified by AndData, and writes the result to the 32-bit PCI\r
configuration register specified by Address. The value written to the PCI\r
configuration register is returned. This function must guarantee that all PCI\r
If EndBit is greater than 31, then ASSERT().\r
If EndBit is less than StartBit, then ASSERT().\r
\r
- @param Address PCI configuration register to write.\r
+ @param Address The PCI configuration register to write.\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
IN UINT32 OrData\r
)\r
{\r
+ BOOLEAN InterruptState;\r
+ UINT32 AddressPort;\r
+ UINT32 Result;\r
+ \r
ASSERT_INVALID_PCI_ADDRESS (Address, 3);\r
+ InterruptState = SaveAndDisableInterrupts ();\r
+ AddressPort = IoRead32 (PCI_CONFIGURATION_ADDRESS_PORT);\r
IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, PCI_TO_CF8_ADDRESS (Address));\r
- return IoBitFieldAndThenOr32 (\r
- PCI_CONFIGURATION_DATA_PORT,\r
- StartBit,\r
- EndBit,\r
- AndData,\r
- OrData\r
- );\r
+ Result = IoBitFieldAndThenOr32 (\r
+ PCI_CONFIGURATION_DATA_PORT,\r
+ StartBit,\r
+ EndBit,\r
+ AndData,\r
+ OrData\r
+ );\r
+ IoWrite32 (PCI_CONFIGURATION_ADDRESS_PORT, AddressPort);\r
+ SetInterruptState (InterruptState);\r
+ return Result;\r
}\r
\r
/**\r
If ((StartAddress & 0xFFF) + Size) > 0x100, then ASSERT().\r
If Size > 0 and Buffer is NULL, then ASSERT().\r
\r
- @param StartAddress Starting address that encodes the PCI Bus, Device,\r
+ @param StartAddress The starting address that encodes the PCI Bus, Device,\r
Function and Register.\r
- @param Size Size in bytes of the transfer.\r
- @param Buffer Pointer to a buffer receiving the data read.\r
+ @param Size The size in bytes of the transfer.\r
+ @param Buffer The pointer to a buffer receiving the data read.\r
\r
- @return Size\r
+ @return Size read from StartAddress.\r
\r
**/\r
UINTN\r
If ((StartAddress & 0xFFF) + Size) > 0x100, then ASSERT().\r
If Size > 0 and Buffer is NULL, then ASSERT().\r
\r
- @param StartAddress Starting address that encodes the PCI Bus, Device,\r
+ @param StartAddress The starting address that encodes the PCI Bus, Device,\r
Function and Register.\r
- @param Size Size in bytes of the transfer.\r
- @param Buffer Pointer to a buffer containing the data to write.\r
+ @param Size The size in bytes of the transfer.\r
+ @param Buffer The pointer to a buffer containing the data to write.\r
\r
- @return Size\r
+ @return Size written to StartAddress.\r
\r
**/\r
UINTN\r
projects / mirror_edk2.git / blobdiff