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305 lines
13 KiB
C
305 lines
13 KiB
C
/** @file
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EFI ISA ACPI Protocol is used to enumerate and manage all the ISA controllers on
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the platform's ISA Bus.
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Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available under
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the terms and conditions of the BSD License that accompanies this distribution.
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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_ACPI_H_
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#define __ISA_ACPI_H_
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///
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/// Global ID for the EFI ISA ACPI Protocol.
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///
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#define EFI_ISA_ACPI_PROTOCOL_GUID \
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{ \
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0x64a892dc, 0x5561, 0x4536, { 0x92, 0xc7, 0x79, 0x9b, 0xfc, 0x18, 0x33, 0x55 } \
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}
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///
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/// Forward declaration fo the EFI ISA ACPI Protocol
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///
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typedef struct _EFI_ISA_ACPI_PROTOCOL EFI_ISA_ACPI_PROTOCOL;
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///
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/// ISA ACPI Protocol interrupt resource attributes.
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///
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#define EFI_ISA_ACPI_IRQ_TYPE_HIGH_TRUE_EDGE_SENSITIVE 0x01 ///< Edge triggered interrupt on a rising edge.
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#define EFI_ISA_ACPI_IRQ_TYPE_LOW_TRUE_EDGE_SENSITIVE 0x02 ///< Edge triggered interrupt on a falling edge.
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#define EFI_ISA_ACPI_IRQ_TYPE_HIGH_TRUE_LEVEL_SENSITIVE 0x04 ///< Level sensitive interrupt active high.
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#define EFI_ISA_ACPI_IRQ_TYPE_LOW_TRUE_LEVEL_SENSITIVE 0x08 ///< Level sensitive interrupt active low.
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///
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/// ISA ACPI Protocol DMA resource attributes.
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///
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#define EFI_ISA_ACPI_DMA_SPEED_TYPE_MASK 0x03 ///< Bit mask of supported DMA speed attributes.
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#define EFI_ISA_ACPI_DMA_SPEED_TYPE_COMPATIBILITY 0x00 ///< ISA controller supports compatibility mode DMA transfers.
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#define EFI_ISA_ACPI_DMA_SPEED_TYPE_A 0x01 ///< ISA controller supports type A DMA transfers.
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#define EFI_ISA_ACPI_DMA_SPEED_TYPE_B 0x02 ///< ISA controller supports type B DMA transfers.
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#define EFI_ISA_ACPI_DMA_SPEED_TYPE_F 0x03 ///< ISA controller supports type F DMA transfers.
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#define EFI_ISA_ACPI_DMA_COUNT_BY_BYTE 0x04 ///< ISA controller increments DMA address by bytes (8-bit).
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#define EFI_ISA_ACPI_DMA_COUNT_BY_WORD 0x08 ///< ISA controller increments DMA address by words (16-bit).
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#define EFI_ISA_ACPI_DMA_BUS_MASTER 0x10 ///< ISA controller is a DMA bus master.
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#define EFI_ISA_ACPI_DMA_TRANSFER_TYPE_8_BIT 0x20 ///< ISA controller only supports 8-bit DMA transfers.
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#define EFI_ISA_ACPI_DMA_TRANSFER_TYPE_8_BIT_AND_16_BIT 0x40 ///< ISA controller both 8-bit and 16-bit DMA transfers.
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#define EFI_ISA_ACPI_DMA_TRANSFER_TYPE_16_BIT 0x80 ///< ISA controller only supports 16-bit DMA transfers.
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///
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/// ISA ACPI Protocol MMIO resource attributes
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///
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#define EFI_ISA_ACPI_MEMORY_WIDTH_MASK 0x03 ///< Bit mask of supported ISA memory width attributes.
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#define EFI_ISA_ACPI_MEMORY_WIDTH_8_BIT 0x00 ///< ISA MMIO region only supports 8-bit access.
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#define EFI_ISA_ACPI_MEMORY_WIDTH_16_BIT 0x01 ///< ISA MMIO region only supports 16-bit access.
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#define EFI_ISA_ACPI_MEMORY_WIDTH_8_BIT_AND_16_BIT 0x02 ///< ISA MMIO region supports both 8-bit and 16-bit access.
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#define EFI_ISA_ACPI_MEMORY_WRITEABLE 0x04 ///< ISA MMIO region supports write transactions.
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#define EFI_ISA_ACPI_MEMORY_CACHEABLE 0x08 ///< ISA MMIO region supports being cached.
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#define EFI_ISA_ACPI_MEMORY_SHADOWABLE 0x10 ///< ISA MMIO region may be shadowed.
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#define EFI_ISA_ACPI_MEMORY_EXPANSION_ROM 0x20 ///< ISA MMIO region is an expansion ROM.
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///
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/// ISA ACPI Protocol I/O resource attributes
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///
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#define EFI_ISA_ACPI_IO_DECODE_10_BITS 0x01 ///< ISA controllers uses a 10-bit address decoder for I/O cycles.
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#define EFI_ISA_ACPI_IO_DECODE_16_BITS 0x02 ///< ISA controllers uses a 16-bit address decoder for I/O cycles.
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///
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/// EFI ISA ACPI resource type
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///
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typedef enum {
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EfiIsaAcpiResourceEndOfList, ///< Marks the end if a resource list.
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EfiIsaAcpiResourceIo, ///< ISA I/O port resource range.
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EfiIsaAcpiResourceMemory, ///< ISA MMIO resource range.
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EfiIsaAcpiResourceDma, ///< ISA DMA resource.
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EfiIsaAcpiResourceInterrupt ///< ISA interrupt resource.
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} EFI_ISA_ACPI_RESOURCE_TYPE;
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///
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/// EFI ISA ACPI generic resource structure
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///
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typedef struct {
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EFI_ISA_ACPI_RESOURCE_TYPE Type; ///< The type of resource (I/O, MMIO, DMA, Interrupt).
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UINT32 Attribute; ///< Bit mask of attributes associated with this resource. See EFI_ISA_ACPI_xxx macros for valid combinations.
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UINT32 StartRange; ///< The start of the resource range.
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UINT32 EndRange; ///< The end of the resource range.
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} EFI_ISA_ACPI_RESOURCE;
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///
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/// EFI ISA ACPI resource device identifier
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///
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typedef struct {
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UINT32 HID; ///< The ACPI Hardware Identifier value associated with an ISA controller. Matchs ACPI DSDT contents.
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UINT32 UID; ///< The ACPI Unique Identifier value associated with an ISA controller. Matches ACPI DSDT contents.
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} EFI_ISA_ACPI_DEVICE_ID;
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///
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/// EFI ISA ACPI resource list
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///
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typedef struct {
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EFI_ISA_ACPI_DEVICE_ID Device; ///< The ACPI HID/UID associated with an ISA controller.
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EFI_ISA_ACPI_RESOURCE *ResourceItem; ///< A pointer to the list of resources associated with an ISA controller.
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} EFI_ISA_ACPI_RESOURCE_LIST;
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/**
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Enumerates the ISA controllers on an ISA bus.
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This service allows all the ISA controllers on an ISA bus to be enumerated. If
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Device is a pointer to a NULL value, then the first ISA controller on the ISA
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bus is returned in Device and EFI_SUCCESS is returned. If Device is a pointer
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to a value that was returned on a prior call to DeviceEnumerate(), then the next
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ISA controller on the ISA bus is returned in Device and EFI_SUCCESS is returned.
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If Device is a pointer to the last ISA controller on the ISA bus, then
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EFI_NOT_FOUND is returned.
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@param[in] This The pointer to the EFI_ISA_ACPI_PROTOCOL instance.
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@param[out] Device The pointer to an ISA controller named by ACPI HID/UID.
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@retval EFI_SUCCESS The next ISA controller on the ISA bus was returned.
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@retval EFI_NOT_FOUND No device found.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ISA_ACPI_DEVICE_ENUMERATE)(
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IN EFI_ISA_ACPI_PROTOCOL *This,
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OUT EFI_ISA_ACPI_DEVICE_ID **Device
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);
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/**
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Sets the power state of an ISA controller.
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This services sets the power state of the ISA controller specified by Device to
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the power state specified by OnOff. TRUE denotes on, FALSE denotes off.
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If the power state is sucessfully set on the ISA Controller, then
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EFI_SUCCESS is returned.
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@param[in] This The pointer to the EFI_ISA_ACPI_PROTOCOL instance.
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@param[in] Device The pointer to an ISA controller named by ACPI HID/UID.
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@param[in] OnOff TRUE denotes on, FALSE denotes off.
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@retval EFI_SUCCESS Successfully set the power state of the ISA controller.
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@retval Other The ISA controller could not be placed in the requested power state.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ISA_ACPI_SET_DEVICE_POWER)(
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IN EFI_ISA_ACPI_PROTOCOL *This,
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IN EFI_ISA_ACPI_DEVICE_ID *Device,
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IN BOOLEAN OnOff
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);
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/**
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Retrieves the current set of resources associated with an ISA controller.
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Retrieves the set of I/O, MMIO, DMA, and interrupt resources currently
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assigned to the ISA controller specified by Device. These resources
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are returned in ResourceList.
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@param[in] This The pointer to the EFI_ISA_ACPI_PROTOCOL instance.
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@param[in] Device The pointer to an ISA controller named by ACPI HID/UID.
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@param[out] ResourceList The pointer to the current resource list for Device.
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@retval EFI_SUCCESS Successfully retrieved the current resource list.
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@retval EFI_NOT_FOUND The resource list could not be retrieved.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ISA_ACPI_GET_CUR_RESOURCE)(
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IN EFI_ISA_ACPI_PROTOCOL *This,
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IN EFI_ISA_ACPI_DEVICE_ID *Device,
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OUT EFI_ISA_ACPI_RESOURCE_LIST **ResourceList
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);
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/**
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Retrieves the set of possible resources that may be assigned to an ISA controller
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with SetResource().
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Retrieves the possible sets of I/O, MMIO, DMA, and interrupt resources for the
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ISA controller specified by Device. The sets are returned in ResourceList.
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@param[in] This The pointer to the EFI_ISA_ACPI_PROTOCOL instance.
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@param[in] Device The pointer to an ISA controller named by ACPI HID/UID.
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@param[out] ResourceList The pointer to the returned list of resource lists.
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@retval EFI_UNSUPPORTED This service is not supported.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ISA_ACPI_GET_POS_RESOURCE)(
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IN EFI_ISA_ACPI_PROTOCOL *This,
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IN EFI_ISA_ACPI_DEVICE_ID *Device,
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OUT EFI_ISA_ACPI_RESOURCE_LIST **ResourceList
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);
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/**
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Assigns resources to an ISA controller.
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Assigns the I/O, MMIO, DMA, and interrupt resources specified by ResourceList
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to the ISA controller specified by Device. ResourceList must match a resource list returned by GetPosResource() for the same ISA controller.
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@param[in] This The pointer to the EFI_ISA_ACPI_PROTOCOL instance.
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@param[in] Device The pointer to an ISA controller named by ACPI HID/UID.
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@param[in] ResourceList The pointer to a resources list that must be one of the
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resource lists returned by GetPosResource() for the
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ISA controller specified by Device.
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@retval EFI_SUCCESS Successfully set resources on the ISA controller.
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@retval Other The resources could not be set for the ISA controller.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ISA_ACPI_SET_RESOURCE)(
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IN EFI_ISA_ACPI_PROTOCOL *This,
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IN EFI_ISA_ACPI_DEVICE_ID *Device,
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IN EFI_ISA_ACPI_RESOURCE_LIST *ResourceList
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);
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/**
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Enables or disables an ISA controller.
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@param[in] This The pointer to the EFI_ISA_ACPI_PROTOCOL instance.
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@param[in] Device The pointer to the ISA controller to enable/disable.
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@param[in] Enable TRUE to enable the ISA controller. FALSE to disable the
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ISA controller.
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@retval EFI_SUCCESS Successfully enabled/disabled the ISA controller.
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@retval Other The ISA controller could not be placed in the requested state.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ISA_ACPI_ENABLE_DEVICE)(
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IN EFI_ISA_ACPI_PROTOCOL *This,
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IN EFI_ISA_ACPI_DEVICE_ID *Device,
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IN BOOLEAN Enable
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);
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/**
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Initializes an ISA controller, so that it can be used. This service must be called
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before SetResource(), EnableDevice(), or SetPower() will behave as expected.
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@param[in] This The pointer to the EFI_ISA_ACPI_PROTOCOL instance.
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@param[in] Device The pointer to an ISA controller named by ACPI HID/UID.
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@retval EFI_SUCCESS Successfully initialized an ISA controller.
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@retval Other The ISA controller could not be initialized.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ISA_ACPI_INIT_DEVICE)(
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IN EFI_ISA_ACPI_PROTOCOL *This,
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IN EFI_ISA_ACPI_DEVICE_ID *Device
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);
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/**
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Initializes all the HW states required for the ISA controllers on the ISA bus
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to be enumerated and managed by the rest of the services in this prorotol.
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This service must be called before any of the other services in this
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protocol will function as expected.
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@param[in] This The pointer to the EFI_ISA_ACPI_PROTOCOL instance.
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@retval EFI_SUCCESS Successfully initialized all required hardware states.
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@retval Other The ISA interface could not be initialized.
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**/
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typedef
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EFI_STATUS
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(EFIAPI *EFI_ISA_ACPI_INTERFACE_INIT)(
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IN EFI_ISA_ACPI_PROTOCOL *This
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);
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///
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/// The EFI_ISA_ACPI_PROTOCOL provides the services to enumerate and manage
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/// ISA controllers on an ISA bus. These services include the ability to initialize,
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/// enable, disable, and manage the power state of ISA controllers. It also
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/// includes services to query current resources, query possible resources,
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/// and assign resources to an ISA controller.
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///
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struct _EFI_ISA_ACPI_PROTOCOL {
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EFI_ISA_ACPI_DEVICE_ENUMERATE DeviceEnumerate;
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EFI_ISA_ACPI_SET_DEVICE_POWER SetPower;
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EFI_ISA_ACPI_GET_CUR_RESOURCE GetCurResource;
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EFI_ISA_ACPI_GET_POS_RESOURCE GetPosResource;
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EFI_ISA_ACPI_SET_RESOURCE SetResource;
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EFI_ISA_ACPI_ENABLE_DEVICE EnableDevice;
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EFI_ISA_ACPI_INIT_DEVICE InitDevice;
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EFI_ISA_ACPI_INTERFACE_INIT InterfaceInit;
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};
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extern EFI_GUID gEfiIsaAcpiProtocolGuid;
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#endif
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