+++ /dev/null
-/** @file\r
- I/O Library.\r
-\r
- Copyright (c) 2006, Intel Corporation<BR>\r
- All rights reserved. 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
- Module Name: IoLib.c\r
-\r
-**/\r
-\r
-/**\r
- Reads an 8-bit I/O port.\r
-\r
- Reads the 8-bit I/O port specified by Port. The 8-bit read value is returned.\r
- This function must guarantee that all I/O read and write operations are\r
- serialized.\r
-\r
- If 8-bit I/O port operations are not supported, then ASSERT().\r
-\r
- @param Port The I/O port to read.\r
-\r
- @return The value read.\r
-\r
-**/\r
-UINT8\r
-EFIAPI\r
-IoRead8 (\r
- IN UINTN Port\r
- )\r
-{\r
- EFI_PEI_SERVICES **PeiServices;\r
- EFI_PEI_CPU_IO_PPI *CpuIo;\r
-\r
- PeiServices = GetPeiServicesTablePointer ();\r
- CpuIo = (*PeiServices)->CpuIo;\r
- ASSERT (CpuIo != NULL);\r
-\r
- return CpuIo->IoRead8 (PeiServices, CpuIo, (UINT64) Port);\r
-}\r
-\r
-/**\r
- Writes an 8-bit I/O port.\r
-\r
- Writes the 8-bit I/O port specified by Port with the value specified by Value\r
- and returns Value. This function must guarantee that all I/O read and write\r
- operations are serialized.\r
-\r
- If 8-bit I/O port operations are not supported, then ASSERT().\r
-\r
- @param Port The I/O port to write.\r
- @param Value The value to write to the I/O port.\r
-\r
- @return The value written the I/O port.\r
-\r
-**/\r
-UINT8\r
-EFIAPI\r
-IoWrite8 (\r
- IN UINTN Port,\r
- IN UINT8 Value\r
- )\r
-{\r
- EFI_PEI_SERVICES **PeiServices;\r
- EFI_PEI_CPU_IO_PPI *CpuIo;\r
-\r
- PeiServices = GetPeiServicesTablePointer ();\r
- CpuIo = (*PeiServices)->CpuIo;\r
- ASSERT (CpuIo != NULL);\r
-\r
- CpuIo->IoWrite8 (PeiServices, CpuIo, (UINT64) Port, Value);\r
- return Value;\r
-}\r
-\r
-/**\r
- Reads a 16-bit I/O port.\r
-\r
- Reads the 16-bit I/O port specified by Port. The 16-bit read value is returned.\r
- This function must guarantee that all I/O read and write operations are\r
- serialized.\r
-\r
- If 16-bit I/O port operations are not supported, then ASSERT().\r
-\r
- @param Port The I/O port to read.\r
-\r
- @return The value read.\r
-\r
-**/\r
-UINT16\r
-EFIAPI\r
-IoRead16 (\r
- IN UINTN Port\r
- )\r
-{\r
- EFI_PEI_SERVICES **PeiServices;\r
- EFI_PEI_CPU_IO_PPI *CpuIo;\r
-\r
- PeiServices = GetPeiServicesTablePointer ();\r
- CpuIo = (*PeiServices)->CpuIo;\r
- ASSERT (CpuIo != NULL);\r
- //\r
- // Make sure Port is aligned on a 16-bit boundary.\r
- //\r
- ASSERT ((Port & 1) == 0);\r
- return CpuIo->IoRead16 (PeiServices, CpuIo, (UINT64) Port);\r
-}\r
-\r
-/**\r
- Writes a 16-bit I/O port.\r
-\r
- Writes the 16-bit I/O port specified by Port with the value specified by Value\r
- and returns Value. This function must guarantee that all I/O read and write\r
- operations are serialized.\r
-\r
- If 16-bit I/O port operations are not supported, then ASSERT().\r
-\r
- @param Port The I/O port to write.\r
- @param Value The value to write to the I/O port.\r
-\r
- @return The value written the I/O port.\r
-\r
-**/\r
-UINT16\r
-EFIAPI\r
-IoWrite16 (\r
- IN UINTN Port,\r
- IN UINT16 Value\r
- )\r
-{\r
- EFI_PEI_SERVICES **PeiServices;\r
- EFI_PEI_CPU_IO_PPI *CpuIo;\r
-\r
- PeiServices = GetPeiServicesTablePointer ();\r
- CpuIo = (*PeiServices)->CpuIo;\r
- ASSERT (CpuIo != NULL);\r
- //\r
- // Make sure Port is aligned on a 16-bit boundary.\r
- //\r
- ASSERT ((Port & 1) == 0);\r
- CpuIo->IoWrite16 (PeiServices, CpuIo, (UINT64) Port, Value);\r
- return Value;\r
-}\r
-\r
-/**\r
- Reads a 32-bit I/O port.\r
-\r
- Reads the 32-bit I/O port specified by Port. The 32-bit read value is returned.\r
- This function must guarantee that all I/O read and write operations are\r
- serialized.\r
-\r
- If 32-bit I/O port operations are not supported, then ASSERT().\r
-\r
- @param Port The I/O port to read.\r
-\r
- @return The value read.\r
-\r
-**/\r
-UINT32\r
-EFIAPI\r
-IoRead32 (\r
- IN UINTN Port\r
- )\r
-{\r
- EFI_PEI_SERVICES **PeiServices;\r
- EFI_PEI_CPU_IO_PPI *CpuIo;\r
-\r
- PeiServices = GetPeiServicesTablePointer ();\r
- CpuIo = (*PeiServices)->CpuIo;\r
- ASSERT (CpuIo != NULL);\r
- //\r
- // Make sure Port is aligned on a 32-bit boundary.\r
- //\r
- ASSERT ((Port & 3) == 0);\r
- return CpuIo->IoRead32 (PeiServices, CpuIo, (UINT64) Port);\r
-}\r
-\r
-/**\r
- Writes a 32-bit I/O port.\r
-\r
- Writes the 32-bit I/O port specified by Port with the value specified by Value\r
- and returns Value. This function must guarantee that all I/O read and write\r
- operations are serialized.\r
-\r
- If 32-bit I/O port operations are not supported, then ASSERT().\r
-\r
- @param Port The I/O port to write.\r
- @param Value The value to write to the I/O port.\r
-\r
- @return The value written the I/O port.\r
-\r
-**/\r
-UINT32\r
-EFIAPI\r
-IoWrite32 (\r
- IN UINTN Port,\r
- IN UINT32 Value\r
- )\r
-{\r
- EFI_PEI_SERVICES **PeiServices;\r
- EFI_PEI_CPU_IO_PPI *CpuIo;\r
-\r
- PeiServices = GetPeiServicesTablePointer ();\r
- CpuIo = (*PeiServices)->CpuIo;\r
- ASSERT (CpuIo != NULL);\r
- //\r
- // Make sure Port is aligned on a 32-bit boundary.\r
- //\r
- ASSERT ((Port & 3) == 0);\r
- CpuIo->IoWrite32 (PeiServices, CpuIo, (UINT64) Port, Value);\r
- return Value;\r
-}\r
-\r
-/**\r
- Reads a 64-bit I/O port.\r
-\r
- Reads the 64-bit I/O port specified by Port. The 64-bit read value is returned.\r
- This function must guarantee that all I/O read and write operations are\r
- serialized.\r
-\r
- If 64-bit I/O port operations are not supported, then ASSERT().\r
-\r
- @param Port The I/O port to read.\r
-\r
- @return The value read.\r
-\r
-**/\r
-UINT64\r
-EFIAPI\r
-IoRead64 (\r
- IN UINTN Port\r
- )\r
-{\r
- EFI_PEI_SERVICES **PeiServices;\r
- EFI_PEI_CPU_IO_PPI *CpuIo;\r
-\r
- PeiServices = GetPeiServicesTablePointer ();\r
- CpuIo = (*PeiServices)->CpuIo;\r
- ASSERT (CpuIo != NULL);\r
- //\r
- // Make sure Port is aligned on a 64-bit boundary.\r
- //\r
- ASSERT ((Port & 7) == 0);\r
- return CpuIo->IoRead64 (PeiServices, CpuIo, (UINT64) Port);\r
-}\r
-\r
-/**\r
- Writes a 64-bit I/O port.\r
-\r
- Writes the 64-bit I/O port specified by Port with the value specified by Value\r
- and returns Value. This function must guarantee that all I/O read and write\r
- operations are serialized.\r
-\r
- If 64-bit I/O port operations are not supported, then ASSERT().\r
-\r
- @param Port The I/O port to write.\r
- @param Value The value to write to the I/O port.\r
-\r
- @return The value written the I/O port.\r
-\r
-**/\r
-UINT64\r
-EFIAPI\r
-IoWrite64 (\r
- IN UINTN Port,\r
- IN UINT64 Value\r
- )\r
-{\r
- EFI_PEI_SERVICES **PeiServices;\r
- EFI_PEI_CPU_IO_PPI *CpuIo;\r
-\r
- PeiServices = GetPeiServicesTablePointer ();\r
- CpuIo = (*PeiServices)->CpuIo;\r
- ASSERT (CpuIo != NULL);\r
- //\r
- // Make sure Port is aligned on a 64-bit boundary.\r
- //\r
- ASSERT ((Port & 7) == 0);\r
- CpuIo->IoWrite64 (PeiServices, CpuIo, (UINT64) Port, Value);\r
- return Value;;\r
-}\r
-\r
-/**\r
- Reads an 8-bit MMIO register.\r
-\r
- Reads the 8-bit MMIO register specified by Address. The 8-bit read value is\r
- returned. This function must guarantee that all MMIO read and write\r
- operations are serialized.\r
-\r
- If 8-bit MMIO register operations are not supported, then ASSERT().\r
-\r
- @param Address The MMIO register to read.\r
-\r
- @return The value read.\r
-\r
-**/\r
-UINT8\r
-EFIAPI\r
-MmioRead8 (\r
- IN UINTN Address\r
- )\r
-{\r
- EFI_PEI_SERVICES **PeiServices;\r
- EFI_PEI_CPU_IO_PPI *CpuIo;\r
-\r
- PeiServices = GetPeiServicesTablePointer ();\r
- CpuIo = (*PeiServices)->CpuIo;\r
- ASSERT (CpuIo != NULL);\r
-\r
- return CpuIo->MemRead8 (PeiServices, CpuIo, (UINT64) Address);\r
-}\r
-\r
-/**\r
- Writes an 8-bit MMIO register.\r
-\r
- Writes the 8-bit MMIO register specified by Address with the value specified\r
- by Value and returns Value. This function must guarantee that all MMIO read\r
- and write operations are serialized.\r
-\r
- If 8-bit MMIO register operations are not supported, then ASSERT().\r
-\r
- @param Address The MMIO register to write.\r
- @param Value The value to write to the MMIO register.\r
-\r
-**/\r
-UINT8\r
-EFIAPI\r
-MmioWrite8 (\r
- IN UINTN Address,\r
- IN UINT8 Value\r
- )\r
-{\r
- EFI_PEI_SERVICES **PeiServices;\r
- EFI_PEI_CPU_IO_PPI *CpuIo;\r
-\r
- PeiServices = GetPeiServicesTablePointer ();\r
- CpuIo = (*PeiServices)->CpuIo;\r
- ASSERT (CpuIo != NULL);\r
-\r
- CpuIo->MemWrite8 (PeiServices, CpuIo, (UINT64) Address, Value);\r
- return Value;\r
-}\r
-\r
-/**\r
- Reads a 16-bit MMIO register.\r
-\r
- Reads the 16-bit MMIO register specified by Address. The 16-bit read value is\r
- returned. This function must guarantee that all MMIO read and write\r
- operations are serialized.\r
-\r
- If 16-bit MMIO register operations are not supported, then ASSERT().\r
-\r
- @param Address The MMIO register to read.\r
-\r
- @return The value read.\r
-\r
-**/\r
-UINT16\r
-EFIAPI\r
-MmioRead16 (\r
- IN UINTN Address\r
- )\r
-{\r
- EFI_PEI_SERVICES **PeiServices;\r
- EFI_PEI_CPU_IO_PPI *CpuIo;\r
-\r
- PeiServices = GetPeiServicesTablePointer ();\r
- CpuIo = (*PeiServices)->CpuIo;\r
- ASSERT (CpuIo != NULL);\r
- //\r
- // Make sure Address is aligned on a 16-bit boundary.\r
- //\r
- ASSERT ((Address & 1) == 0);\r
- return CpuIo->MemRead16 (PeiServices, CpuIo, (UINT64) Address);\r
-\r
-}\r
-\r
-/**\r
- Writes a 16-bit MMIO register.\r
-\r
- Writes the 16-bit MMIO register specified by Address with the value specified\r
- by Value and returns Value. This function must guarantee that all MMIO read\r
- and write operations are serialized.\r
-\r
- If 16-bit MMIO register operations are not supported, then ASSERT().\r
-\r
- @param Address The MMIO register to write.\r
- @param Value The value to write to the MMIO register.\r
-\r
-**/\r
-UINT16\r
-EFIAPI\r
-MmioWrite16 (\r
- IN UINTN Address,\r
- IN UINT16 Value\r
- )\r
-{\r
- EFI_PEI_SERVICES **PeiServices;\r
- EFI_PEI_CPU_IO_PPI *CpuIo;\r
-\r
- PeiServices = GetPeiServicesTablePointer ();\r
- CpuIo = (*PeiServices)->CpuIo;\r
- ASSERT (CpuIo != NULL);\r
- //\r
- // Make sure Address is aligned on a 16-bit boundary.\r
- //\r
- ASSERT ((Address & 1) == 0);\r
- CpuIo->MemWrite16 (PeiServices, CpuIo, (UINT64) Address, Value);\r
- return Value;\r
-}\r
-\r
-/**\r
- Reads a 32-bit MMIO register.\r
-\r
- Reads the 32-bit MMIO register specified by Address. The 32-bit read value is\r
- returned. This function must guarantee that all MMIO read and write\r
- operations are serialized.\r
-\r
- If 32-bit MMIO register operations are not supported, then ASSERT().\r
-\r
- @param Address The MMIO register to read.\r
-\r
- @return The value read.\r
-\r
-**/\r
-UINT32\r
-EFIAPI\r
-MmioRead32 (\r
- IN UINTN Address\r
- )\r
-{\r
- EFI_PEI_SERVICES **PeiServices;\r
- EFI_PEI_CPU_IO_PPI *CpuIo;\r
-\r
- PeiServices = GetPeiServicesTablePointer ();\r
- CpuIo = (*PeiServices)->CpuIo;\r
- ASSERT (CpuIo != NULL);\r
- //\r
- // Make sure Address is aligned on a 32-bit boundary.\r
- //\r
- ASSERT ((Address & 3) == 0);\r
- return CpuIo->MemRead32 (PeiServices, CpuIo, (UINT64) Address);\r
-\r
-}\r
-\r
-/**\r
- Writes a 32-bit MMIO register.\r
-\r
- Writes the 32-bit MMIO register specified by Address with the value specified\r
- by Value and returns Value. This function must guarantee that all MMIO read\r
- and write operations are serialized.\r
-\r
- If 32-bit MMIO register operations are not supported, then ASSERT().\r
-\r
- @param Address The MMIO register to write.\r
- @param Value The value to write to the MMIO register.\r
-\r
-**/\r
-UINT32\r
-EFIAPI\r
-MmioWrite32 (\r
- IN UINTN Address,\r
- IN UINT32 Value\r
- )\r
-{\r
- EFI_PEI_SERVICES **PeiServices;\r
- EFI_PEI_CPU_IO_PPI *CpuIo;\r
-\r
- PeiServices = GetPeiServicesTablePointer ();\r
- CpuIo = (*PeiServices)->CpuIo;\r
- ASSERT (CpuIo != NULL);\r
- //\r
- // Make sure Address is aligned on a 32-bit boundary.\r
- //\r
- ASSERT ((Address & 3) == 0);\r
- CpuIo->MemWrite32 (PeiServices, CpuIo, (UINT64) Address, Value);\r
- return Value;\r
-}\r
-\r
-/**\r
- Reads a 64-bit MMIO register.\r
-\r
- Reads the 64-bit MMIO register specified by Address. The 64-bit read value is\r
- returned. This function must guarantee that all MMIO read and write\r
- operations are serialized.\r
-\r
- If 64-bit MMIO register operations are not supported, then ASSERT().\r
-\r
- @param Address The MMIO register to read.\r
-\r
- @return The value read.\r
-\r
-**/\r
-UINT64\r
-EFIAPI\r
-MmioRead64 (\r
- IN UINTN Address\r
- )\r
-{\r
- EFI_PEI_SERVICES **PeiServices;\r
- EFI_PEI_CPU_IO_PPI *CpuIo;\r
-\r
- PeiServices = GetPeiServicesTablePointer ();\r
- CpuIo = (*PeiServices)->CpuIo;\r
- ASSERT (CpuIo != NULL);\r
- //\r
- // Make sure Address is aligned on a 64-bit boundary.\r
- //\r
- ASSERT ((Address & 7) == 0);\r
- return CpuIo->MemRead64 (PeiServices, CpuIo, (UINT64) Address);\r
-\r
-}\r
-\r
-/**\r
- Writes a 64-bit MMIO register.\r
-\r
- Writes the 64-bit MMIO register specified by Address with the value specified\r
- by Value and returns Value. This function must guarantee that all MMIO read\r
- and write operations are serialized.\r
-\r
- If 64-bit MMIO register operations are not supported, then ASSERT().\r
-\r
- @param Address The MMIO register to write.\r
- @param Value The value to write to the MMIO register.\r
-\r
-**/\r
-UINT64\r
-EFIAPI\r
-MmioWrite64 (\r
- IN UINTN Address,\r
- IN UINT64 Value\r
- )\r
-{\r
- EFI_PEI_SERVICES **PeiServices;\r
- EFI_PEI_CPU_IO_PPI *CpuIo;\r
-\r
- PeiServices = GetPeiServicesTablePointer ();\r
- CpuIo = (*PeiServices)->CpuIo;\r
- ASSERT (CpuIo != NULL);\r
- //\r
- // Make sure Address is aligned on a 64-bit boundary.\r
- //\r
- ASSERT ((Address & 7) == 0);\r
- CpuIo->MemWrite64 (PeiServices, CpuIo, (UINT64) Address, Value);\r
- return Value;\r
-}\r
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