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Diffstat (limited to 'src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Ppi/SuperIo.h')
| -rw-r--r-- | src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Ppi/SuperIo.h | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Ppi/SuperIo.h b/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Ppi/SuperIo.h new file mode 100644 index 0000000000..9f129ffc98 --- /dev/null +++ b/src/vendorcode/intel/edk2/UDK2017/MdePkg/Include/Ppi/SuperIo.h @@ -0,0 +1,189 @@ +/** @file + This PPI provides the super I/O register access functionality. + + Copyright (c) 2015, Intel Corporation. All rights reserved.<BR> + This program and the accompanying materials + are licensed and made available under the terms and conditions of the BSD License + which accompanies this distribution. The full text of the license may be found at + http://opensource.org/licenses/bsd-license.php + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + + @par Revision Reference: + This PPI is from PI Version 1.2.1. + +**/ + +#ifndef __EFI_SUPER_IO_PPI_H__ +#define __EFI_SUPER_IO_PPI_H__ + +#include <Protocol/SuperIo.h> + +#define EFI_SIO_PPI_GUID \ + { \ + 0x23a464ad, 0xcb83, 0x48b8, {0x94, 0xab, 0x1a, 0x6f, 0xef, 0xcf, 0xe5, 0x22} \ + } + +typedef struct _EFI_SIO_PPI EFI_SIO_PPI; +typedef struct _EFI_SIO_PPI *PEFI_SIO_PPI; + +typedef UINT16 EFI_SIO_REGISTER; +#define EFI_SIO_REG(ldn,reg) (EFI_SIO_REGISTER) (((ldn) << 8) | reg) +#define EFI_SIO_LDN_GLOBAL 0xFF + +/** + Read a Super I/O register. + + The register is specified as an 8-bit logical device number and an 8-bit + register value. The logical device numbers for specific SIO devices can be + determined using the Info member of the PPI structure. + + @param PeiServices A pointer to a pointer to the PEI Services. + @param This A pointer to this instance of the EFI_SIO_PPI. + @param ExitCfgMode A boolean specifying whether the driver should turn on + configuration mode (FALSE) or turn off configuration mode + (TRUE) after completing the read operation. The driver must + track the current state of the configuration mode (if any) + and turn on configuration mode (if necessary) prior to + register access. + @param Register A value specifying the logical device number (bits 15:8) + and the register to read (bits 7:0). The logical device + number of EFI_SIO_LDN_GLOBAL indicates that global + registers will be used. + @param IoData A pointer to the returned register value. + + @retval EFI_SUCCESS Success. + @retval EFI_TIMEOUT The register could not be read in the a reasonable + amount of time. The exact time is device-specific. + @retval EFI_INVALID_PARAMETERS Register was out of range for this device. + @retval EFI_INVALID_PARAMETERS IoData was NULL + @retval EFI_DEVICE_ERROR There was a device fault or the device was not present. +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_PEI_SIO_REGISTER_READ)( + IN EFI_PEI_SERVICES **PeiServices, + IN CONST EFI_SIO_PPI *This, + IN BOOLEAN ExitCfgMode, + IN EFI_SIO_REGISTER Register, + OUT UINT8 *IoData + ); + +/** + Write a Super I/O register. + + The register is specified as an 8-bit logical device number and an 8-bit register + value. The logical device numbers for specific SIO devices can be determined + using the Info member of the PPI structure. + + @param PeiServices A pointer to a pointer to the PEI Services. + @param This A pointer to this instance of the EFI_SIO_PPI. + @param ExitCfgMode A boolean specifying whether the driver should turn on + configuration mode (FALSE) or turn off configuration mode + (TRUE) after completing the read operation. The driver must + track the current state of the configuration mode (if any) + and turn on configuration mode (if necessary) prior to + register access. + @param Register A value specifying the logical device number (bits 15:8) + and the register to read (bits 7:0). The logical device + number of EFI_SIO_LDN_GLOBAL indicates that global + registers will be used. + @param IoData A pointer to the returned register value. + + @retval EFI_SUCCESS Success. + @retval EFI_TIMEOUT The register could not be read in the a reasonable + amount of time. The exact time is device-specific. + @retval EFI_INVALID_PARAMETERS Register was out of range for this device. + @retval EFI_INVALID_PARAMETERS IoData was NULL + @retval EFI_DEVICE_ERROR There was a device fault or the device was not present. +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_PEI_SIO_REGISTER_WRITE)( + IN EFI_PEI_SERVICES **PeiServices, + IN CONST EFI_SIO_PPI *This, + IN BOOLEAN ExitCfgMode, + IN EFI_SIO_REGISTER Register, + IN UINT8 IoData + ); + +/** + Provides an interface for a table based programming of the Super I/O registers. + + The Modify() function provides an interface for table based programming of the + Super I/O registers. This function can be used to perform programming of + multiple Super I/O registers with a single function call. For each table entry, + the Register is read, its content is bitwise ANDed with AndMask, and then ORed + with OrMask before being written back to the Register. The Super I/O driver + must track the current state of the Super I/O and enable the configuration mode + of Super I/O if necessary prior to table processing. Once the table is processed, + the Super I/O device must be returned to the original state. + + @param PeiServices A pointer to a pointer to the PEI Services. + @param This A pointer to this instance of the EFI_SIO_PPI. + @param Command A pointer to an array of NumberOfCommands EFI_SIO_REGISTER_MODIFY + structures. Each structure specifies a single Super I/O register + modify operation. + @param NumberOfCommands The number of elements in the Command array. + + @retval EFI_SUCCESS The operation completed successfully. + @retval EFI_INVALID_PARAMETERS Command is NULL. +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_PEI_SIO_REGISTER_MODIFY)( + IN EFI_PEI_SERVICES **PeiServices, + IN CONST EFI_SIO_PPI *This, + IN CONST EFI_SIO_REGISTER_MODIFY *Command, + IN UINTN NumberOfCommands + ); + +/// +/// Specifies the end of the information list. +/// +#define EFI_ACPI_PNP_HID_END EFI_PNP_ID (0x0000) + +typedef UINT32 EFI_ACPI_HID; +typedef UINT32 EFI_ACPI_UID; +#pragma pack(1) +typedef struct _EFI_SIO_INFO { + EFI_ACPI_HID Hid; + EFI_ACPI_UID Uid; + UINT8 Ldn; +} EFI_SIO_INFO, *PEFI_SIO_INFO; +#pragma pack() + +/// +/// This PPI provides low-level access to Super I/O registers using Read() and +/// Write(). It also uniquely identifies this Super I/O controller using a GUID +/// and provides mappings between ACPI style PNP IDs and the logical device numbers. +/// There is one instance of this PPI per Super I/O device. +/// +struct _EFI_SIO_PPI { + /// + /// This function reads a register's value from the Super I/O controller. + /// + EFI_PEI_SIO_REGISTER_READ Read; + /// + /// This function writes a value to a register in the Super I/O controller. + /// + EFI_PEI_SIO_REGISTER_WRITE Write; + /// + /// This function modifies zero or more registers in the Super I/O controller + /// using a table. + /// + EFI_PEI_SIO_REGISTER_MODIFY Modify; + /// + /// This GUID uniquely identifies the Super I/O controller. + /// + EFI_GUID SioGuid; + /// + /// This pointer is to an array which maps EISA identifiers to logical devices numbers. + /// + PEFI_SIO_INFO Info; +}; + +extern EFI_GUID gEfiSioPpiGuid; + +#endif |