mirror of https://github.com/acidanthera/audk.git
263 lines
10 KiB
C
263 lines
10 KiB
C
/** @file
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The header file for ISA driver
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Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _ISA_DRIVER_H_
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#define _ISA_DRIVER_H_
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#include <Uefi.h>
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#include <Protocol/PciIo.h>
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#include <Protocol/SuperIo.h>
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#include <Protocol/ComponentName.h>
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#include <Protocol/IsaIo.h>
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#include <Protocol/DevicePath.h>
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#include <Protocol/DriverBinding.h>
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#include <Guid/StatusCodeDataTypeId.h>
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#include <Library/DebugLib.h>
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#include <Library/UefiDriverEntryPoint.h>
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#include <Library/UefiLib.h>
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#include <Library/DevicePathLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/ReportStatusCodeLib.h>
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#include <Library/PcdLib.h>
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#include <IndustryStandard/Acpi.h>
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#include "ComponentName.h"
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//
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// 8237 DMA registers
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//
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#define R_8237_DMA_BASE_CA_CH0 0x00
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#define R_8237_DMA_BASE_CA_CH1 0x02
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#define R_8237_DMA_BASE_CA_CH2 0x04
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#define R_8237_DMA_BASE_CA_CH3 0xd6
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#define R_8237_DMA_BASE_CA_CH5 0xc4
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#define R_8237_DMA_BASE_CA_CH6 0xc8
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#define R_8237_DMA_BASE_CA_CH7 0xcc
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#define R_8237_DMA_BASE_CC_CH0 0x01
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#define R_8237_DMA_BASE_CC_CH1 0x03
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#define R_8237_DMA_BASE_CC_CH2 0x05
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#define R_8237_DMA_BASE_CC_CH3 0xd7
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#define R_8237_DMA_BASE_CC_CH5 0xc6
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#define R_8237_DMA_BASE_CC_CH6 0xca
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#define R_8237_DMA_BASE_CC_CH7 0xce
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#define R_8237_DMA_MEM_LP_CH0 0x87
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#define R_8237_DMA_MEM_LP_CH1 0x83
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#define R_8237_DMA_MEM_LP_CH2 0x81
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#define R_8237_DMA_MEM_LP_CH3 0x82
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#define R_8237_DMA_MEM_LP_CH5 0x8B
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#define R_8237_DMA_MEM_LP_CH6 0x89
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#define R_8237_DMA_MEM_LP_CH7 0x8A
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#define R_8237_DMA_COMMAND_CH0_3 0x08
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#define R_8237_DMA_COMMAND_CH4_7 0xd0
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#define B_8237_DMA_COMMAND_GAP 0x10
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#define B_8237_DMA_COMMAND_CGE 0x04
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#define R_8237_DMA_STA_CH0_3 0xd8
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#define R_8237_DMA_STA_CH4_7 0xd0
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#define R_8237_DMA_WRSMSK_CH0_3 0x0a
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#define R_8237_DMA_WRSMSK_CH4_7 0xd4
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#define B_8237_DMA_WRSMSK_CMS 0x04
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#define R_8237_DMA_CHMODE_CH0_3 0x0b
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#define R_8237_DMA_CHMODE_CH4_7 0xd6
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#define V_8237_DMA_CHMODE_DEMAND 0x00
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#define V_8237_DMA_CHMODE_SINGLE 0x40
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#define V_8237_DMA_CHMODE_CASCADE 0xc0
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#define B_8237_DMA_CHMODE_DECREMENT 0x20
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#define B_8237_DMA_CHMODE_INCREMENT 0x00
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#define B_8237_DMA_CHMODE_AE 0x10
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#define V_8237_DMA_CHMODE_VERIFY 0
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#define V_8237_DMA_CHMODE_IO2MEM 0x04
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#define V_8237_DMA_CHMODE_MEM2IO 0x08
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#define R_8237_DMA_CBPR_CH0_3 0x0c
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#define R_8237_DMA_CBPR_CH4_7 0xd8
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#define R_8237_DMA_MCR_CH0_3 0x0d
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#define R_8237_DMA_MCR_CH4_7 0xda
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#define R_8237_DMA_CLMSK_CH0_3 0x0e
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#define R_8237_DMA_CLMSK_CH4_7 0xdc
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#define R_8237_DMA_WRMSK_CH0_3 0x0f
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#define R_8237_DMA_WRMSK_CH4_7 0xde
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typedef enum {
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IsaAccessTypeUnknown,
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IsaAccessTypeIo,
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IsaAccessTypeMem,
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IsaAccessTypeMaxType
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} ISA_ACCESS_TYPE;
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typedef struct {
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UINT8 Address;
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UINT8 Page;
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UINT8 Count;
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} EFI_ISA_DMA_REGISTERS;
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//
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// ISA I/O Device Structure
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//
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#define ISA_IO_DEVICE_SIGNATURE SIGNATURE_32 ('i', 's', 'a', 'i')
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typedef struct {
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UINT32 Signature;
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EFI_HANDLE Handle;
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EFI_ISA_IO_PROTOCOL IsaIo;
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EFI_PCI_IO_PROTOCOL *PciIo;
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} ISA_IO_DEVICE;
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#define ISA_IO_DEVICE_FROM_ISA_IO_THIS(a) CR (a, ISA_IO_DEVICE, IsaIo, ISA_IO_DEVICE_SIGNATURE)
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//
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// Mapping structure for performing ISA DMA to a buffer above 16 MB
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//
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typedef struct {
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EFI_ISA_IO_PROTOCOL_OPERATION Operation;
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UINTN NumberOfBytes;
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UINTN NumberOfPages;
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EFI_PHYSICAL_ADDRESS HostAddress;
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EFI_PHYSICAL_ADDRESS MappedHostAddress;
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} ISA_MAP_INFO;
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//
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// EFI Driver Binding Protocol Interface Functions
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//
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/**
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Tests to see if a controller can be managed by the ISA Driver.
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How the Start() function of a driver is implemented can affect how the Supported() function is implemented.
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@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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@param[in] Controller The handle of the controller to test.
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@param[in] RemainingDevicePath A pointer to the remaining portion of a device path.
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@retval EFI_SUCCESS The device is supported by this driver.
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@retval EFI_ALREADY_STARTED The device is already being managed by this driver.
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@retval EFI_ACCESS_DENIED The device is already being managed by a different driver
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or an application that requires exclusive access.
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@retval EFI_UNSUPPORTED The device is is not supported by this driver.
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**/
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EFI_STATUS
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EFIAPI
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IsaIoDriverSupported (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Controller,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
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);
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/**
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Start this driver on ControllerHandle.
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The Start() function is designed to be invoked from the EFI boot service ConnectController().
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As a result, much of the error checking on the parameters to Start() has been moved into this
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common boot service. It is legal to call Start() from other locations, but the following calling
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restrictions must be followed or the system behavior will not be deterministic.
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1. ControllerHandle must be a valid EFI_HANDLE.
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2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned
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EFI_DEVICE_PATH_PROTOCOL.
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3. Prior to calling Start(), the Supported() function for the driver specified by This must
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have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.
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@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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@param[in] ControllerHandle The handle of the controller to start. This handle
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must support a protocol interface that supplies
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an I/O abstraction to the driver.
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@param[in] RemainingDevicePath A pointer to the remaining portion of a device path.
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This parameter is ignored by device drivers, and is optional for bus drivers.
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@retval EFI_SUCCESS The device was started.
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@retval EFI_DEVICE_ERROR The device could not be started due to a device error.
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Currently not implemented.
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@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
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@retval Others The driver failded to start the device.
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**/
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EFI_STATUS
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EFIAPI
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IsaIoDriverStart (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE Controller,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
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);
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/**
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Stop this driver on ControllerHandle.
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The Stop() function is designed to be invoked from the EFI boot service DisconnectController().
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As a result, much of the error checking on the parameters to Stop() has been moved
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into this common boot service. It is legal to call Stop() from other locations,
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but the following calling restrictions must be followed or the system behavior will not be deterministic.
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1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this
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same driver's Start() function.
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2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid
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EFI_HANDLE. In addition, all of these handles must have been created in this driver's
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Start() function, and the Start() function must have called OpenProtocol() on
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ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.
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@param[in] This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
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@param[in] ControllerHandle A handle to the device being stopped. The handle must
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support a bus specific I/O protocol for the driver
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to use to stop the device.
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@param[in] NumberOfChildren The number of child device handles in ChildHandleBuffer.
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@param[in] ChildHandleBuffer An array of child handles to be freed. May be NULL
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if NumberOfChildren is 0.
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@retval EFI_SUCCESS The device was stopped.
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@retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
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**/
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EFI_STATUS
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EFIAPI
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IsaIoDriverStop (
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IN EFI_DRIVER_BINDING_PROTOCOL * This,
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IN EFI_HANDLE Controller,
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IN UINTN NumberOfChildren,
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IN EFI_HANDLE * ChildHandleBuffer OPTIONAL
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);
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//
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// Function Prototypes
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//
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/**
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Initializes an ISA I/O Instance
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@param[in] IsaIoDevice The isa device to be initialized.
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@param[in] DevicePath The device path of the isa device.
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@param[in] Resources The ACPI resource list.
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**/
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VOID
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InitializeIsaIoInstance (
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IN ISA_IO_DEVICE *IsaIoDevice,
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IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
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IN ACPI_RESOURCE_HEADER_PTR Resources
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);
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#endif
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