diff options
Diffstat (limited to 'IntelFrameworkModulePkg/Include')
| -rw-r--r-- | IntelFrameworkModulePkg/Include/Protocol/IsaAcpi.h | 346 | ||||
| -rw-r--r-- | IntelFrameworkModulePkg/Include/Protocol/IsaIo.h | 349 | ||||
| -rw-r--r-- | IntelFrameworkModulePkg/Include/Protocol/VgaMiniPort.h | 76 |
3 files changed, 482 insertions, 289 deletions
diff --git a/IntelFrameworkModulePkg/Include/Protocol/IsaAcpi.h b/IntelFrameworkModulePkg/Include/Protocol/IsaAcpi.h index e3ad06f60f..81e75f949e 100644 --- a/IntelFrameworkModulePkg/Include/Protocol/IsaAcpi.h +++ b/IntelFrameworkModulePkg/Include/Protocol/IsaAcpi.h @@ -1,237 +1,305 @@ /** @file
- ISA Acpi Protocol is used to operate and communicate with ISA device.
+ EFI ISA ACPI Protocol is used to enumerate and manage all the ISA controllers on
+ the platform's ISA Bus.
-Copyright (c) 2006 - 2009, Intel Corporation
-All rights reserved. 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.
+ Copyright (c) 2006 - 2009, Intel Corporation
+ All rights reserved. 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.
**/
#ifndef __ISA_ACPI_H_
#define __ISA_ACPI_H_
+///
+/// Global ID for the EFI ISA ACPI Protocol
+///
#define EFI_ISA_ACPI_PROTOCOL_GUID \
- { 0x64a892dc, 0x5561, 0x4536, { 0x92, 0xc7, 0x79, 0x9b, 0xfc, 0x18, 0x33, 0x55 } }
+ { \
+ 0x64a892dc, 0x5561, 0x4536, { 0x92, 0xc7, 0x79, 0x9b, 0xfc, 0x18, 0x33, 0x55 } \
+ }
+///
+/// Forward declaration fo the EFI ISA ACPI Protocol
+///
typedef struct _EFI_ISA_ACPI_PROTOCOL EFI_ISA_ACPI_PROTOCOL;
-//
-// Resource Attribute definition
-//
-#define EFI_ISA_ACPI_IRQ_TYPE_HIGH_TRUE_EDGE_SENSITIVE 0x01
-#define EFI_ISA_ACPI_IRQ_TYPE_LOW_TRUE_EDGE_SENSITIVE 0x02
-#define EFI_ISA_ACPI_IRQ_TYPE_HIGH_TRUE_LEVEL_SENSITIVE 0x04
-#define EFI_ISA_ACPI_IRQ_TYPE_LOW_TRUE_LEVEL_SENSITIVE 0x08
-
-#define EFI_ISA_ACPI_DMA_SPEED_TYPE_MASK 0x03
-
-#define EFI_ISA_ACPI_DMA_SPEED_TYPE_COMPATIBILITY 0x00
-#define EFI_ISA_ACPI_DMA_SPEED_TYPE_A 0x01
-#define EFI_ISA_ACPI_DMA_SPEED_TYPE_B 0x02
-#define EFI_ISA_ACPI_DMA_SPEED_TYPE_F 0x03
-#define EFI_ISA_ACPI_DMA_COUNT_BY_BYTE 0x04
-#define EFI_ISA_ACPI_DMA_COUNT_BY_WORD 0x08
-#define EFI_ISA_ACPI_DMA_BUS_MASTER 0x10
-#define EFI_ISA_ACPI_DMA_TRANSFER_TYPE_8_BIT 0x20
-#define EFI_ISA_ACPI_DMA_TRANSFER_TYPE_8_BIT_AND_16_BIT 0x40
-#define EFI_ISA_ACPI_DMA_TRANSFER_TYPE_16_BIT 0x80
-
-#define EFI_ISA_ACPI_MEMORY_WIDTH_MASK 0x03
-
-#define EFI_ISA_ACPI_MEMORY_WIDTH_8_BIT 0x00
-#define EFI_ISA_ACPI_MEMORY_WIDTH_16_BIT 0x01
-#define EFI_ISA_ACPI_MEMORY_WIDTH_8_BIT_AND_16_BIT 0x02
-#define EFI_ISA_ACPI_MEMORY_WRITEABLE 0x04
-#define EFI_ISA_ACPI_MEMORY_CACHEABLE 0x08
-#define EFI_ISA_ACPI_MEMORY_SHADOWABLE 0x10
-#define EFI_ISA_ACPI_MEMORY_EXPANSION_ROM 0x20
-
-#define EFI_ISA_ACPI_IO_DECODE_10_BITS 0x01
-#define EFI_ISA_ACPI_IO_DECODE_16_BITS 0x02
-
-//
-// Resource List definition:
-//
+///
+/// ISA ACPI Protocol interrupt resource attributes
+///
+#define EFI_ISA_ACPI_IRQ_TYPE_HIGH_TRUE_EDGE_SENSITIVE 0x01 ///< Edge triggered interrupt on a rising edge
+#define EFI_ISA_ACPI_IRQ_TYPE_LOW_TRUE_EDGE_SENSITIVE 0x02 ///< Edge triggered interrupt on a falling edge
+#define EFI_ISA_ACPI_IRQ_TYPE_HIGH_TRUE_LEVEL_SENSITIVE 0x04 ///< Level sensitive interrupt active high
+#define EFI_ISA_ACPI_IRQ_TYPE_LOW_TRUE_LEVEL_SENSITIVE 0x08 ///< Level sensitive interrupt active low
+
+///
+/// ISA ACPI Protocol DMA resource attributes
+///
+#define EFI_ISA_ACPI_DMA_SPEED_TYPE_MASK 0x03 ///< Bit mask of supported DMA speed attributes
+#define EFI_ISA_ACPI_DMA_SPEED_TYPE_COMPATIBILITY 0x00 ///< ISA controller supports compatibility mode DMA transfers
+#define EFI_ISA_ACPI_DMA_SPEED_TYPE_A 0x01 ///< ISA controller supports type A DMA transfers
+#define EFI_ISA_ACPI_DMA_SPEED_TYPE_B 0x02 ///< ISA controller supports type B DMA transfers
+#define EFI_ISA_ACPI_DMA_SPEED_TYPE_F 0x03 ///< ISA controller supports type F DMA transfers
+#define EFI_ISA_ACPI_DMA_COUNT_BY_BYTE 0x04 ///< ISA controller increments DMA address by bytes (8-bit)
+#define EFI_ISA_ACPI_DMA_COUNT_BY_WORD 0x08 ///< ISA controller increments DMA address by words (16-bit)
+#define EFI_ISA_ACPI_DMA_BUS_MASTER 0x10 ///< ISA controller is a DMA bus master
+#define EFI_ISA_ACPI_DMA_TRANSFER_TYPE_8_BIT 0x20 ///< ISA controller only supports 8-bit DMA transfers
+#define EFI_ISA_ACPI_DMA_TRANSFER_TYPE_8_BIT_AND_16_BIT 0x40 ///< ISA controller both 8-bit and 16-bit DMA transfers
+#define EFI_ISA_ACPI_DMA_TRANSFER_TYPE_16_BIT 0x80 ///< ISA controller only supports 16-bit DMA transfers
+
+///
+/// ISA ACPI Protocol MMIO resource attributes
+///
+#define EFI_ISA_ACPI_MEMORY_WIDTH_MASK 0x03 ///< Bit mask of supported ISA memory width attributes
+#define EFI_ISA_ACPI_MEMORY_WIDTH_8_BIT 0x00 ///< ISA MMIO region only supports 8-bit access
+#define EFI_ISA_ACPI_MEMORY_WIDTH_16_BIT 0x01 ///< ISA MMIO region only supports 16-bit access
+#define EFI_ISA_ACPI_MEMORY_WIDTH_8_BIT_AND_16_BIT 0x02 ///< ISA MMIO region supports both 8-bit and 16-bit access
+#define EFI_ISA_ACPI_MEMORY_WRITEABLE 0x04 ///< ISA MMIO region supports write transactions
+#define EFI_ISA_ACPI_MEMORY_CACHEABLE 0x08 ///< ISA MMIO region supports being cached
+#define EFI_ISA_ACPI_MEMORY_SHADOWABLE 0x10 ///< ISA MMIO region may be shadowed
+#define EFI_ISA_ACPI_MEMORY_EXPANSION_ROM 0x20 ///< ISA MMIO region is an expansion ROM
+
+///
+/// ISA ACPI Protocol I/O resource attributes
+///
+#define EFI_ISA_ACPI_IO_DECODE_10_BITS 0x01 ///< ISA controllers uses a 10-bit address decoder for I/O cycles
+#define EFI_ISA_ACPI_IO_DECODE_16_BITS 0x02 ///< ISA controllers uses a 16-bit address decoder for I/O cycles
+
+///
+/// EFI ISA ACPI resource type
+///
typedef enum {
- EfiIsaAcpiResourceEndOfList,
- EfiIsaAcpiResourceIo,
- EfiIsaAcpiResourceMemory,
- EfiIsaAcpiResourceDma,
- EfiIsaAcpiResourceInterrupt
+ EfiIsaAcpiResourceEndOfList, ///< Marks the end if a resource list
+ EfiIsaAcpiResourceIo, ///< ISA I/O port resource range
+ EfiIsaAcpiResourceMemory, ///< ISA MMIO resource range
+ EfiIsaAcpiResourceDma, ///< ISA DMA resource
+ EfiIsaAcpiResourceInterrupt ///< ISA interrupt resource
} EFI_ISA_ACPI_RESOURCE_TYPE;
+///
+/// EFI ISA ACPI generic resource structure
+///
typedef struct {
- EFI_ISA_ACPI_RESOURCE_TYPE Type;
- UINT32 Attribute;
- UINT32 StartRange;
- UINT32 EndRange;
+ EFI_ISA_ACPI_RESOURCE_TYPE Type; ///< The type of resource (I/O, MMIO, DMA, Interrupt)
+ UINT32 Attribute; ///< Bit mask of attributes associated with this resource. See EFI_ISA_ACPI_xxx macros for valid combinations.
+ UINT32 StartRange; ///< The start of the resource range
+ UINT32 EndRange; ///< The end of the resource range
} EFI_ISA_ACPI_RESOURCE;
+///
+/// EFI ISA ACPI resource device identifier
+///
typedef struct {
- UINT32 HID;
- UINT32 UID;
+ UINT32 HID; ///< The ACPI Hardware Identifier value associated with an ISA controller. Matchs ACPI DSDT contents.
+ UINT32 UID; ///< The ACPI Unique Identifier value associated with an ISA controller. Matches ACPI DSDT contents.
} EFI_ISA_ACPI_DEVICE_ID;
+///
+/// EFI ISA ACPI resource list
+///
typedef struct {
- EFI_ISA_ACPI_DEVICE_ID Device;
- EFI_ISA_ACPI_RESOURCE *ResourceItem;
+ EFI_ISA_ACPI_DEVICE_ID Device; ///< The ACPI HID/UID associated with an ISA controller
+ EFI_ISA_ACPI_RESOURCE *ResourceItem; ///< Pointer to the list of resources associated with an ISA controller
} EFI_ISA_ACPI_RESOURCE_LIST;
/**
- Enumerate the ISA devices on the ISA bus.
+ Enumerates the ISA controllers on an ISA bus.
+
+ This service allows all the ISA controllers on an ISA bus to be enumerated. If
+ Device is a pointer to a NULL value, then the first ISA controller on the ISA
+ bus is returned in Device and EFI_SUCESS is returned. If Device is a pointer
+ to value that was returned on a prior call to DeviceEnumerate(), then the next
+ ISA controller on the ISA bus is returned in Device and EFI_SUCCESS is returned.
+ If Device is a pointer to the last ISA controller on the ISA bus, then
+ EFI_NOT_FOUND is returned.
- @param This Pointer to EFI_ISA_ACPI_PROTOCOL.
- @param Device Found next ISA device.
+ @param[in] This Pointer to the EFI_ISA_ACPI_PROTOCOL instance.
+ @param[out] Device Pointer to an ISA controller named by ACPI HID/UID.
- @retval EFI_NOT_FOUND No device found.
- @retval EFI_SUCCESS Success get the next ISA device.
+ @retval EFI_SUCCESS The next ISA controller on the ISA bus was returned.
+ @retval EFI_NOT_FOUND No device found.
**/
typedef
EFI_STATUS
-(EFIAPI *EFI_ISA_ACPI_DEVICE_ENUMERATE) (
- IN EFI_ISA_ACPI_PROTOCOL *This,
- OUT EFI_ISA_ACPI_DEVICE_ID **Device
+(EFIAPI *EFI_ISA_ACPI_DEVICE_ENUMERATE)(
+ IN EFI_ISA_ACPI_PROTOCOL *This,
+ OUT EFI_ISA_ACPI_DEVICE_ID **Device
);
/**
- Set ISA device power.
+ Sets the power state of an ISA controller.
- @param This Pointer to EFI_ISA_ACPI_PROTOCOL.
- @param Device ISA device.
- @param OnOff Whether to set power on or off.
+ This services sets the power state of the ISA controller specified by Device to
+ the power state specified by OnOff. If OnOff is TRUE, then power is applied to
+ the ISA controller. If OnOff is FALSE, then power is remobed from the ISA
+ controller. If the power state is sucessfully set on the ISA Controller, then
+ EFI_SUCCESS is returned.
- @retval EFI_SUCCESS Successfully set ISA device.
+ @param[in] This Pointer to the EFI_ISA_ACPI_PROTOCOL instance.
+ @param[in] Device Pointer to an ISA controller named by ACPI HID/UID.
+ @param[in] OnOff TRUE to apply power to the ISA controller. FALSE to remove
+ power from the ISA controller.
+
+ @retval EFI_SUCCESS Successfully set the power state of the ISA controller.
+ @retval Other The ISA controller cound not be placed in the requested power state.
**/
typedef
EFI_STATUS
-(EFIAPI *EFI_ISA_ACPI_SET_DEVICE_POWER) (
- IN EFI_ISA_ACPI_PROTOCOL *This,
- IN EFI_ISA_ACPI_DEVICE_ID *Device,
- IN BOOLEAN OnOff
+(EFIAPI *EFI_ISA_ACPI_SET_DEVICE_POWER)(
+ IN EFI_ISA_ACPI_PROTOCOL *This,
+ IN EFI_ISA_ACPI_DEVICE_ID *Device,
+ IN BOOLEAN OnOff
);
/**
- Get current Resource of the specific ISA device.
+ Retrieves the current set of resource associated with an ISA controller.
+
+ Retrieves the set of I/O, MMIO, DMA, and interrupt resources currently
+ assigned to the ISA controller specified by Device. These resources
+ are returned in ResourceList.
- @param This Pointer to EFI_ISA_ACPI_PROTOCOL.
- @param Device ISA device.
- @param ResourceList Returned resource list.
+ @param[in] This Pointer to the EFI_ISA_ACPI_PROTOCOL instance.
+ @param[in] Device Pointer to an ISA controller named by ACPI HID/UID.
+ @param[out] ResourceList Pointer to the current resource list for Device.
- @retval EFI_SUCCESS Successfully get current resource.
- @retval EFI_NOT_FOUND No resource found.
+ @retval EFI_SUCCESS Successfully retrieved the current resource list.
+ @retval EFI_NOT_FOUND The resource list could not be retrieved.
**/
typedef
EFI_STATUS
-(EFIAPI *EFI_ISA_ACPI_GET_CUR_RESOURCE) (
- IN EFI_ISA_ACPI_PROTOCOL *This,
- IN EFI_ISA_ACPI_DEVICE_ID *Device,
- OUT EFI_ISA_ACPI_RESOURCE_LIST **ResourceList
+(EFIAPI *EFI_ISA_ACPI_GET_CUR_RESOURCE)(
+ IN EFI_ISA_ACPI_PROTOCOL *This,
+ IN EFI_ISA_ACPI_DEVICE_ID *Device,
+ OUT EFI_ISA_ACPI_RESOURCE_LIST **ResourceList
);
/**
- Get possible resource for the specific ISA device.
+ Retrieves the set of possible resources that may be assigned to an ISA controller
+ with SetResource().
- @param This Pointer to EFI_ISA_ACPI_PROTOCOL.
- @param Device ISA device.
- @param ResourceList Returned resource list.
+ Retrieves the possible sets of I/O, MMIO, DMA, and interrupt resources for the
+ ISA controller specified by Device. The sets are returned in ResourceList.
+
+ @param[in] This Pointer to the EFI_ISA_ACPI_PROTOCOL instance.
+ @param[in] Device Pointer to an ISA controller named by ACPI HID/UID.
+ @param[out] ResourceList Pointer to the returned list of resource lists.
+
+ @retval EFI_UNSUPPORTED This services is not supported.
- @retval EFI_SUCCESS Successfully get possible resource.
- @retval EFI_NOT_FOUND No resource found.
**/
typedef
EFI_STATUS
-(EFIAPI *EFI_ISA_ACPI_GET_POS_RESOURCE) (
- IN EFI_ISA_ACPI_PROTOCOL *This,
- IN EFI_ISA_ACPI_DEVICE_ID *Device,
- OUT EFI_ISA_ACPI_RESOURCE_LIST **ResourceList
+(EFIAPI *EFI_ISA_ACPI_GET_POS_RESOURCE)(
+ IN EFI_ISA_ACPI_PROTOCOL *This,
+ IN EFI_ISA_ACPI_DEVICE_ID *Device,
+ OUT EFI_ISA_ACPI_RESOURCE_LIST **ResourceList
);
/**
- Set resources for the specific ISA device.
+ Assigns resources to an ISA controller.
- @param This Pointer to EFI_ISA_ACPI_PROTOCOL.
- @param Device ISA device.
- @param ResourceList Resource list will be set.
+ Assigns the I/O, MMIO, DMA, and interrupt resources specified by ResourceList
+ to the ISA controller specified by Device. ResourceList must match on of the
+ possible resource lists returned by GetPosResource() for the same ISA controller.
- @retval EFI_SUCCESS Successfully set resource.
+ @param[in] This Pointer to the EFI_ISA_ACPI_PROTOCOL instance.
+ @param[in] Device Pointer to an ISA controller named by ACPI HID/UID.
+ @param[in] ResourceList Pointer to a resources list that must be one of the
+ resource lists returned by GetPosResource() for the
+ ISA controller specified by Device.
+
+ @retval EFI_SUCCESS Successfully set resources on the ISA controller.
+ @retval Other The resources could not be set for the ISA controller.
**/
typedef
EFI_STATUS
-(EFIAPI *EFI_ISA_ACPI_SET_RESOURCE) (
- IN EFI_ISA_ACPI_PROTOCOL *This,
- IN EFI_ISA_ACPI_DEVICE_ID *Device,
- IN EFI_ISA_ACPI_RESOURCE_LIST *ResourceList
+(EFIAPI *EFI_ISA_ACPI_SET_RESOURCE)(
+ IN EFI_ISA_ACPI_PROTOCOL *This,
+ IN EFI_ISA_ACPI_DEVICE_ID *Device,
+ IN EFI_ISA_ACPI_RESOURCE_LIST *ResourceList
);
/**
- Enable or disable ISA device.
+ Enables or disables an ISA controller.
- @param This Pointer of EFI_ISA_ACPI_PROTOCOL.
- @param Device ISA device.
- @param Enable Enable/Disable.
+ @param[in] This Pointer to the EFI_ISA_ACPI_PROTOCOL instance.
+ @param[in] Device Pointer to the ISA controller to enable/disable.
+ @param[in] Enable TRUE to enable the ISA controller. FALSE to disable the
+ ISA controller.
- @retval EFI_SUCCESS Successfully perform this action.
+ @retval EFI_SUCCESS Successfully enabled/disabled the ISA controller.
+ @retval Other The ISA controller cound not be placed in the requested state.
**/
typedef
EFI_STATUS
-(EFIAPI *EFI_ISA_ACPI_ENABLE_DEVICE) (
- IN EFI_ISA_ACPI_PROTOCOL *This,
- IN EFI_ISA_ACPI_DEVICE_ID *Device,
- IN BOOLEAN Enable
+(EFIAPI *EFI_ISA_ACPI_ENABLE_DEVICE)(
+ IN EFI_ISA_ACPI_PROTOCOL *This,
+ IN EFI_ISA_ACPI_DEVICE_ID *Device,
+ IN BOOLEAN Enable
);
/**
- Init ISA device.
+ Places an ISA controller into a usable state. This service must be called
+ before SetResource(), EnableDevice(), or SetPower() will behave as expected.
- @param This Pointer to EFI_ISA_ACPI_PROTOCOL.
- @param Device ISA device.
+ @param[in] This Pointer to the EFI_ISA_ACPI_PROTOCOL instance.
+ @param[in] Device Pointer to an ISA controller named by ACPI HID/UID.
- @retval EFI_SUCCESS Successfully initialize ISA device.
+ @retval EFI_SUCCESS Successfully initialized an ISA controller.
+ @retval Other The ISA controller could not be initialized.
**/
typedef
EFI_STATUS
-(EFIAPI *EFI_ISA_ACPI_INIT_DEVICE) (
- IN EFI_ISA_ACPI_PROTOCOL *This,
- IN EFI_ISA_ACPI_DEVICE_ID *Device
+(EFIAPI *EFI_ISA_ACPI_INIT_DEVICE)(
+ IN EFI_ISA_ACPI_PROTOCOL *This,
+ IN EFI_ISA_ACPI_DEVICE_ID *Device
);
/**
- ISA Interface Init.
-
- @param This Pointer of EFI_ISA_ACPI_PROTOCOL.
+ Initializes all the HW state required for the ISA controlers on the ISA bus
+ to be enumerated and managed by this rest of the services in this prorotol.
+ This service must be called before any of the other services in this
+ protocol will function as expected.
+
+ @param[in] This Pointer to the EFI_ISA_ACPI_PROTOCOL instance.
- @retval EFI_SUCCESS Successfully initialize ISA interface.
+ @retval EFI_SUCCESS Successfully initialized the ISA interface.
+ @retval Other The ISA interface could not be initialized.
**/
typedef
EFI_STATUS
-(EFIAPI *EFI_ISA_ACPI_INTERFACE_INIT) (
- IN EFI_ISA_ACPI_PROTOCOL *This
+(EFIAPI *EFI_ISA_ACPI_INTERFACE_INIT)(
+ IN EFI_ISA_ACPI_PROTOCOL *This
);
-//
-// Interface structure for the ISA ACPI Protocol
-//
+///
+/// The EFI_ISA_ACPI_PROTOCOL provides the services to enumberate and manage
+/// ISA controllers on an ISA bus. This include the ability to initialize,
+/// enable, disable, and manag the power state of ISA controllers. It also
+/// includes services to query current ressources, query possible resources,
+/// and assign resources to an ISA controller.
+///
struct _EFI_ISA_ACPI_PROTOCOL {
- EFI_ISA_ACPI_DEVICE_ENUMERATE DeviceEnumerate;
- EFI_ISA_ACPI_SET_DEVICE_POWER SetPower;
- EFI_ISA_ACPI_GET_CUR_RESOURCE GetCurResource;
- EFI_ISA_ACPI_GET_POS_RESOURCE GetPosResource;
- EFI_ISA_ACPI_SET_RESOURCE SetResource;
- EFI_ISA_ACPI_ENABLE_DEVICE EnableDevice;
- EFI_ISA_ACPI_INIT_DEVICE InitDevice;
- EFI_ISA_ACPI_INTERFACE_INIT InterfaceInit;
+ EFI_ISA_ACPI_DEVICE_ENUMERATE DeviceEnumerate;
+ EFI_ISA_ACPI_SET_DEVICE_POWER SetPower;
+ EFI_ISA_ACPI_GET_CUR_RESOURCE GetCurResource;
+ EFI_ISA_ACPI_GET_POS_RESOURCE GetPosResource;
+ EFI_ISA_ACPI_SET_RESOURCE SetResource;
+ EFI_ISA_ACPI_ENABLE_DEVICE EnableDevice;
+ EFI_ISA_ACPI_INIT_DEVICE InitDevice;
+ EFI_ISA_ACPI_INTERFACE_INIT InterfaceInit;
};
extern EFI_GUID gEfiIsaAcpiProtocolGuid;
diff --git a/IntelFrameworkModulePkg/Include/Protocol/IsaIo.h b/IntelFrameworkModulePkg/Include/Protocol/IsaIo.h index 9a2822937f..63999b0dc6 100644 --- a/IntelFrameworkModulePkg/Include/Protocol/IsaIo.h +++ b/IntelFrameworkModulePkg/Include/Protocol/IsaIo.h @@ -1,89 +1,116 @@ /** @file
- ISA I/O Protocol is used to perform ISA device Io/Mem operations.
-
-Copyright (c) 2006 - 2009, Intel Corporation
-All rights reserved. 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.
+ ISA I/O Protocol is used by ISA device drivers to perform I/O, MMIO and DMA
+ operations on the ISA controllers they manage.
+
+ Copyright (c) 2006 - 2009, Intel Corporation
+ All rights reserved. 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.
**/
#ifndef _EFI_ISA_IO_H_
#define _EFI_ISA_IO_H_
-
#include <Protocol/IsaAcpi.h>
-//
-// Global GUID for the ISA I/O Protocol
-//
+///
+/// Global ID for the EFI_ISA_IO_PROTOCOL
+///
#define EFI_ISA_IO_PROTOCOL_GUID \
- { 0x7ee2bd44, 0x3da0, 0x11d4, { 0x9a, 0x38, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d } }
+ { \
+ 0x7ee2bd44, 0x3da0, 0x11d4, { 0x9a, 0x38, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d } \
+ }
+///
+/// Forward declaration for the EFI_ISA_IO_PROTOCOL
+///
typedef struct _EFI_ISA_IO_PROTOCOL EFI_ISA_IO_PROTOCOL;
-//
-// Width of ISA Io/Mem operation
-//
+///
+/// Width of EFI_ISA_IO_PROTOCOL I/O Port and MMIO operations
+///
typedef enum {
- EfiIsaIoWidthUint8,
- EfiIsaIoWidthUint16,
- EfiIsaIoWidthUint32,
+ EfiIsaIoWidthUint8 = 0, ///< 8-bit operation
+ EfiIsaIoWidthUint16, ///< 16-bit operation
+ EfiIsaIoWidthUint32, ///< 32-bit operation
EfiIsaIoWidthReserved,
- EfiIsaIoWidthFifoUint8,
- EfiIsaIoWidthFifoUint16,
- EfiIsaIoWidthFifoUint32,
+ EfiIsaIoWidthFifoUint8, ///< 8-bit FIFO operation
+ EfiIsaIoWidthFifoUint16, ///< 16-bit FIFO operation
+ EfiIsaIoWidthFifoUint32, ///< 32-bit FIFO operation
EfiIsaIoWidthFifoReserved,
- EfiIsaIoWidthFillUint8,
- EfiIsaIoWidthFillUint16,
- EfiIsaIoWidthFillUint32,
+ EfiIsaIoWidthFillUint8, ///< 8-bit Fill operation
+ EfiIsaIoWidthFillUint16, ///< 16-bit Fill operation
+ EfiIsaIoWidthFillUint32, ///< 32-bit Fill operation
EfiIsaIoWidthFillReserved,
EfiIsaIoWidthMaximum
} EFI_ISA_IO_PROTOCOL_WIDTH;
-//
-// Attributes for common buffer allocations
-//
+///
+/// Attributes for the EFI_ISA_IO_PROTOCOL common DMA buffer allocations
+///
#define EFI_ISA_IO_ATTRIBUTE_MEMORY_WRITE_COMBINE 0x080 ///< Map a memory range so write are combined
#define EFI_ISA_IO_ATTRIBUTE_MEMORY_CACHED 0x800 ///< Map a memory range so all r/w accesses are cached
#define EFI_ISA_IO_ATTRIBUTE_MEMORY_DISABLE 0x1000 ///< Disable a memory range
-//
-// Channel attribute for DMA operations
-//
-#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SPEED_COMPATIBLE 0x001
-#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SPEED_A 0x002
-#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SPEED_B 0x004
-#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SPEED_C 0x008
-#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_WIDTH_8 0x010
-#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_WIDTH_16 0x020
-#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SINGLE_MODE 0x040
-#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_DEMAND_MODE 0x080
-#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_AUTO_INITIALIZE 0x100
-
+///
+/// Channel attribute for EFI_ISA_IO_PROTOCOL slave DMA requests
+///
+#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SPEED_COMPATIBLE 0x001 ///< Set the speed of the DMA transfer in compatible mode
+#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SPEED_A 0x002 ///< Not supported
+#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SPEED_B 0x004 ///< Not supported
+#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SPEED_C 0x008 ///< Not supported
+#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_WIDTH_8 0x010 ///< Request 8-bit DMA transfers. Only available on channels 0..3
+#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_WIDTH_16 0x020 ///< Request 16-bit DMA transfers. Only available on channels 4..7
+#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SINGLE_MODE 0x040 ///< Request a single DMA transfer
+#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_DEMAND_MODE 0x080 ///< Request multiple DMA transfers until TC(Terminal Count) or EOP(End of Process)
+#define EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_AUTO_INITIALIZE 0x100 ///< Automatically reload base and count at the end of the DMA transfer
+
+///
+/// The DMA opreration type for EFI_ISA_IO_PROTOCOL DMA requests
+///
typedef enum {
+ ///
+ /// A read operation from system memory by a bus master.
+ ///
EfiIsaIoOperationBusMasterRead,
+ ///
+ /// A write operation to system memory by a bus master.
+ ///
EfiIsaIoOperationBusMasterWrite,
+ ///
+ /// Provides both read and write access to system memory by both the processor
+ /// and a bus master. The buffer is coherent from both the processor's and the
+ /// bus master's point of view.
+ ///
EfiIsaIoOperationBusMasterCommonBuffer,
+ ///
+ /// A read operation from system memory by a slave device.
+ ///
EfiIsaIoOperationSlaveRead,
+ ///
+ /// A write operation to system memory by a slave master.
+ ///
EfiIsaIoOperationSlaveWrite,
EfiIsaIoOperationMaximum
} EFI_ISA_IO_PROTOCOL_OPERATION;
/**
- Performs an ISA Io/Memory Read/Write Cycle
-
- @param This A pointer to the EFI_ISA_IO_PROTOCOL instance.
- @param Width Signifies the width of the Io/Memory operation.
- @param Offset The offset in ISA Io/Memory space to start the Io/Memory operation.
- @param Count The number of Io/Memory operations to perform.
- @param Buffer [OUT] The destination buffer to store the results.
- [IN] The source buffer to write data to the device.
-
+ Performs ISA I/O and MMIO Read/Write Cycles
+
+ @param[in] This A pointer to the EFI_ISA_IO_PROTOCOL instance.
+ @param[in] Width Specifies the width of the I/O or MMIO operation.
+ @param[in] Offset The offset into the ISA I/O or MMIO space to start the
+ operation.
+ @param[in] Count The number of I/O or MMIO operations to perform.
+ @param[in, out] Buffer For read operations, the destination buffer to store
+ the results. For write operations, the source buffer to
+ write data from.
+
@retval EFI_SUCCESS The data was read from / written to the device sucessfully.
@retval EFI_UNSUPPORTED The Offset is not valid for this device.
@retval EFI_INVALID_PARAMETER Width or Count, or both, were invalid.
@@ -92,27 +119,37 @@ typedef enum { **/
typedef
EFI_STATUS
-(EFIAPI *EFI_ISA_IO_PROTOCOL_IO_MEM) (
- IN EFI_ISA_IO_PROTOCOL *This,
- IN EFI_ISA_IO_PROTOCOL_WIDTH Width,
- IN UINT32 Offset,
- IN UINTN Count,
- IN OUT VOID *Buffer
+(EFIAPI *EFI_ISA_IO_PROTOCOL_IO_MEM)(
+ IN EFI_ISA_IO_PROTOCOL *This,
+ IN EFI_ISA_IO_PROTOCOL_WIDTH Width,
+ IN UINT32 Offset,
+ IN UINTN Count,
+ IN OUT VOID *Buffer
);
+///
+/// Structure of functions for accessing ISA I/O and MMIO space
+///
typedef struct {
+ ///
+ /// Read from ISA I/O or MMIO space.
+ ///
EFI_ISA_IO_PROTOCOL_IO_MEM Read;
+ ///
+ /// Write to ISA I/O or MMIO space.
+ ///
EFI_ISA_IO_PROTOCOL_IO_MEM Write;
} EFI_ISA_IO_PROTOCOL_ACCESS;
/**
- Performs an ISA I/O Copy Memory
+ Copies data from one region of ISA MMIO space to another region of ISA
+ MMIO space.
- @param This A pointer to the EFI_ISA_IO_PROTOCOL instance.
- @param Width Signifies the width of the memory copy operation.
- @param DestOffset The offset of the destination
- @param SrcOffset The offset of the source
- @param Count The number of memory copy operations to perform
+ @param[in] This A pointer to the EFI_ISA_IO_PROTOCOL instance.
+ @param[in] Width Specifies the width of the MMIO copy operation.
+ @param[in] DestOffset The offset of the destination in ISA MMIO space
+ @param[in] SrcOffset The offset of the source in ISA MMIO space
+ @param[in] Count The number tranfers to perform for this copy operation
@retval EFI_SUCCESS The data was copied sucessfully.
@retval EFI_UNSUPPORTED The DestOffset or SrcOffset is not valid for this device.
@@ -122,35 +159,63 @@ typedef struct { **/
typedef
EFI_STATUS
-(EFIAPI *EFI_ISA_IO_PROTOCOL_COPY_MEM) (
- IN EFI_ISA_IO_PROTOCOL *This,
- IN EFI_ISA_IO_PROTOCOL_WIDTH Width,
- IN UINT32 DestOffset,
- IN UINT32 SrcOffset,
- IN UINTN Count
+(EFIAPI *EFI_ISA_IO_PROTOCOL_COPY_MEM)(
+ IN EFI_ISA_IO_PROTOCOL *This,
+ IN EFI_ISA_IO_PROTOCOL_WIDTH Width,
+ IN UINT32 DestOffset,
+ IN UINT32 SrcOffset,
+ IN UINTN Count
);
/**
- Maps a memory region for DMA
-
- @param This A pointer to the EFI_ISA_IO_PROTOCOL instance.
- @param Operation Indicates the type of DMA (slave or bus master), and if
- the DMA operation is going to read or write to system memory.
- @param ChannelNumber The slave channel number to use for this DMA operation.
- If Operation and ChannelAttributes shows that this device
- performs bus mastering DMA, then this field is ignored.
- The legal range for this field is 0..7.
- @param ChannelAttributes The attributes of the DMA channel to use for this DMA operation
- @param HostAddress The system memory address to map to the device.
- @param NumberOfBytes On input the number of bytes to map. On output the number
- of bytes that were mapped.
- @param DeviceAddress The resulting map address for the bus master device to use
- to access the hosts HostAddress.
- @param Mapping A resulting value to pass to EFI_ISA_IO.Unmap().
-
+ Maps a memory region for DMA.
+
+ This function returns the device specific addresses required to access system memory.
+ This function is used to map system memory for ISA DMA operations. All ISA DMA
+ operations must be performed through their mapped addresses and such mappings must
+ be freed with EFI_ISA_IO_PROTOCOL.Unmap() after the DMA operation is completed.
+ If the DMA operation is a single read or write data transfer through an ISA bus
+ master, then EfiIsaIoOperationBusMasterRead or EfiIsaIoOperationBusMasterWrite
+ is used and the range is unmapped to complete the operation. If the DMA operation
+ is a single read or write data transfer through an ISA slave controller, then
+ EfiIsaIoOperationSlaveRead or EfiIsaIoOperationSlaveWrite is used and the range
+ is unmapped to complete the operation. If performing a DMA read operation, all
+ the data must be present in system memory before the Map() is performed. Similarly,
+ if performing a DMA write operation, the data must not be accessed in system
+ memory until EFI_ISA_IO_PROTOCOL.Unmap() is performed. Bus master operations that
+ require both read and write access or require multiple host device interactions
+ within the same mapped region must use EfiIsaIoOperationBusMasterCommonBuffer.
+ However, only memory allocated via the EFI_ISA_IO_PROTOCOL.AllocateBuffer() interface
+ are guaranteed to be able to be mapped for this operation type. In all mapping
+ requests the NumberOfBytes returned may be less than originally requested. It is
+ the caller's responsibility to make additional requests to complete the entire
+ transfer.
+
+ @param[in] This A pointer to the EFI_ISA_IO_PROTOCOL instance.
+ @param[in] Operation Indicates the type of DMA (slave or bus master),
+ and if the DMA operation is going to read or
+ write to system memory.
+ @param[in] ChannelNumber The slave channel number to use for this DMA
+ operation. If Operation and ChannelAttributes
+ shows that this device performs bus mastering
+ DMA, then this field is ignored. The legal
+ range for this field is 0..7.
+ @param[in] ChannelAttributes A bitmask of the attributes used to configure
+ the slave DMA channel for this DMA operation.
+ See EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_* for the
+ legal bit combinations.
+ @param[in] HostAddress The system memory address to map to the device.
+ @param[in, out] NumberOfBytes On input the number of bytes to map. On
+ output the number of bytes that were mapped.
+ @param[out] DeviceAddress The resulting map address for the bus master
+ device to use to access the hosts HostAddress.
+ @param[out] Mapping A returned value that must be passed to into
+ EFI_ISA_IO_PROTOCOL.Unmap() to free all the the
+ resources associated with this map request.
@retval EFI_SUCCESS The range was mapped for the returned NumberOfBytes.
- @retval EFI_INVALID_PARAMETER The Operation or HostAddress is undefined.
+ @retval EFI_INVALID_PARAMETER The Operation is undefined.
+ @retval EFI_INVALID_PARAMETER The HostAddress is undefined.
@retval EFI_UNSUPPORTED The HostAddress can not be mapped as a common buffer.
@retval EFI_DEVICE_ERROR The system hardware could not map the requested address.
@retval EFI_OUT_OF_RESOURCES The memory pages could not be allocated.
@@ -158,7 +223,7 @@ EFI_STATUS **/
typedef
EFI_STATUS
-(EFIAPI *EFI_ISA_IO_PROTOCOL_MAP) (
+(EFIAPI *EFI_ISA_IO_PROTOCOL_MAP)(
IN EFI_ISA_IO_PROTOCOL *This,
IN EFI_ISA_IO_PROTOCOL_OPERATION Operation,
IN UINT8 ChannelNumber OPTIONAL,
@@ -170,56 +235,64 @@ EFI_STATUS );
/**
- Unmaps a memory region for DMA
+ Unmaps a memory region that was previously mapped with EFI_ISA_IO_PROTOCOL.Map()
- @param This A pointer to the EFI_ISA_IO_PROTOCOL instance.
- @param Mapping The mapping value returned from EFI_ISA_IO.Map().
+ The EFI_ISA_IO_PROTOCOL.Map() operation is completed and any corresponding
+ resources are released. If the operation was EfiIsaIoOperationSlaveWrite
+ or EfiIsaIoOperationBusMasterWrite, the data is committed to system memory.
+ Any resources used for the mapping are freed.
- @retval EFI_SUCCESS The range was unmapped.
- @retval EFI_DEVICE_ERROR The data was not committed to the target system memory.
+ @param[in] This A pointer to the EFI_ISA_IO_PROTOCOL instance.
+ @param[in] Mapping The mapping value returned from EFI_ISA_IO_PROTOCOL.Map().
+ @retval EFI_SUCCESS The memory region was unmapped.
+ @retval EFI_DEVICE_ERROR The data was not committed to the target system memory.
**/
typedef
EFI_STATUS
-(EFIAPI *EFI_ISA_IO_PROTOCOL_UNMAP) (
- IN EFI_ISA_IO_PROTOCOL *This,
- IN VOID *Mapping
+(EFIAPI *EFI_ISA_IO_PROTOCOL_UNMAP)(
+ IN EFI_ISA_IO_PROTOCOL *This,
+ IN VOID *Mapping
);
/**
- Allocates a common buffer for DMA
+ Allocates pages that are suitable for an EfiIsaIoOperationBusMasterCommonBuffer
+ mapping.
- @param This A pointer to the EFI_ISA_IO_PROTOCOL instance.
- @param Type The type allocation to perform.
- @param MemoryType The type of memory to allocate.
- @param Pages The number of pages to allocate.
- @param HostAddress A pointer to store the base address of the allocated range.
- @param Attributes The requested bit mask of attributes for the allocated range.
+ @param[in] This A pointer to the EFI_ISA_IO_PROTOCOL instance.
+ @param[in] Type The type allocation to perform.
+ @param[in] MemoryType The type of memory to allocate.
+ @param[in] Pages The number of pages to allocate.
+ @param[out] HostAddress A pointer to store the base address of the allocated range.
+ @param[in] Attributes The requested bit mask of attributes for the allocated range.
@retval EFI_SUCCESS The requested memory pages were allocated.
- @retval EFI_INVALID_PARAMETER Type is invalid or MemoryType is invalid or HostAddress is NULL
- @retval EFI_UNSUPPORTED Attributes is unsupported or the memory range specified
- by HostAddress, Pages, and Type is not available for common buffer use.
+ @retval EFI_INVALID_PARAMETER Type is invalid.
+ @retval EFI_INVALID_PARAMETER MemoryType is invalid
+ @retval EFI_INVALID_PARAMETER HostAddress is NULL
+ @retval EFI_UNSUPPORTED Attributes is unsupported.
+ @retval EFI_UNSUPPORTED The memory range specified by HostAddress, Pages,
+ and Type is not available for common buffer use.
@retval EFI_OUT_OF_RESOURCES The memory pages could not be allocated.
**/
typedef
EFI_STATUS
-(EFIAPI *EFI_ISA_IO_PROTOCOL_ALLOCATE_BUFFER) (
- IN EFI_ISA_IO_PROTOCOL *This,
- IN EFI_ALLOCATE_TYPE Type,
- IN EFI_MEMORY_TYPE MemoryType,
- IN UINTN Pages,
- OUT VOID **HostAddress,
- IN UINT64 Attributes
+(EFIAPI *EFI_ISA_IO_PROTOCOL_ALLOCATE_BUFFER)(
+ IN EFI_ISA_IO_PROTOCOL *This,
+ IN EFI_ALLOCATE_TYPE Type,
+ IN EFI_MEMORY_TYPE MemoryType,
+ IN UINTN Pages,
+ OUT VOID **HostAddress,
+ IN UINT64 Attributes
);
/**
- Frees a common buffer
+ Frees a common buffer that was allocated with EFI_ISA_IO_PROTOCOL.AllocateBuffer()
- @param This A pointer to the EFI_ISA_IO_PROTOCOL instance.
- @param Pages The number of pages to free.
- @param HostAddress The base address of the allocated range.
+ @param[in] This A pointer to the EFI_ISA_IO_PROTOCOL instance.
+ @param[in] Pages The number of pages to free from the previously allocated common buffer.
+ @param[in] HostAddress The base address of the previously allocated common buffer.
@retval EFI_SUCCESS The requested memory pages were freed.
@@ -228,30 +301,34 @@ EFI_STATUS **/
typedef
EFI_STATUS
-(EFIAPI *EFI_ISA_IO_PROTOCOL_FREE_BUFFER) (
- IN EFI_ISA_IO_PROTOCOL *This,
- IN UINTN Pages,
- IN VOID *HostAddress
+(EFIAPI *EFI_ISA_IO_PROTOCOL_FREE_BUFFER)(
+ IN EFI_ISA_IO_PROTOCOL *This,
+ IN UINTN Pages,
+ IN VOID *HostAddress
);
/**
- Flushes a DMA buffer
+ Flushes a DMA buffer. This forces all DMA posted write transactions to complete.
- @param This A pointer to the EFI_ISA_IO_PROTOCOL instance.
+ @param[in] This A pointer to the EFI_ISA_IO_PROTOCOL instance.
- @retval EFI_SUCCESS The buffers were flushed.
+ @retval EFI_SUCCESS The DMA buffers were flushed.
@retval EFI_DEVICE_ERROR The buffers were not flushed due to a hardware error.
**/
typedef
EFI_STATUS
-(EFIAPI *EFI_ISA_IO_PROTOCOL_FLUSH) (
- IN EFI_ISA_IO_PROTOCOL *This
+(EFIAPI *EFI_ISA_IO_PROTOCOL_FLUSH)(
+ IN EFI_ISA_IO_PROTOCOL *This
);
-//
-// Interface structure for the ISA I/O Protocol
-//
+///
+/// The EFI_ISA_IO_PROTOCOL provides the basic Memory, I/O, and DMA interfaces
+/// used to abstract accesses to ISA controllers. There is one EFI_ISA_IO_PROTOCOL
+/// instance for each ISA controller on a ISA bus. A device driver that wishes
+/// to manage an ISA controller in a system will have to retrieve the
+/// ISA_PCI_IO_PROTOCOL instance that is associated with the ISA controller.
+///
struct _EFI_ISA_IO_PROTOCOL {
EFI_ISA_IO_PROTOCOL_ACCESS Mem;
EFI_ISA_IO_PROTOCOL_ACCESS Io;
@@ -261,8 +338,20 @@ struct _EFI_ISA_IO_PROTOCOL { EFI_ISA_IO_PROTOCOL_ALLOCATE_BUFFER AllocateBuffer;
EFI_ISA_IO_PROTOCOL_FREE_BUFFER FreeBuffer;
EFI_ISA_IO_PROTOCOL_FLUSH Flush;
+ ///
+ /// The list of I/O , MMIO, DMA, and Interrupt resources associated with the
+ /// ISA controller abstracted by this instance of the EFI_ISA_IO_PROTOCOL.
+ ///
EFI_ISA_ACPI_RESOURCE_LIST *ResourceList;
+ ///
+ /// The size, in bytes, of the ROM image.
+ ///
UINT32 RomSize;
+ ///
+ /// A pointer to the in memory copy of the ROM image. The ISA Bus Driver is responsible
+ /// for allocating memory for the ROM image, and copying the contents of the ROM to memory
+ /// during ISA Bus initialization.
+ ///
VOID *RomImage;
};
diff --git a/IntelFrameworkModulePkg/Include/Protocol/VgaMiniPort.h b/IntelFrameworkModulePkg/Include/Protocol/VgaMiniPort.h index a76d4e2e5e..f8a73879a7 100644 --- a/IntelFrameworkModulePkg/Include/Protocol/VgaMiniPort.h +++ b/IntelFrameworkModulePkg/Include/Protocol/VgaMiniPort.h @@ -1,55 +1,91 @@ /** @file
- Vga Mini port binding for a VGA controller
+ VGA Mini Port Protocol that is used to set the text display mode of a VGA controller.
-Copyright (c) 2006 - 2007, Intel Corporation
-All rights reserved. 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.
+ Copyright (c) 2006 - 2009, Intel Corporation
+ All rights reserved. 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.
**/
#ifndef __VGA_MINI_PORT_H_
#define __VGA_MINI_PORT_H_
+///
+/// Global ID for the EFI_VGA_MINI_PORT_PROTOCOL
+///
#define EFI_VGA_MINI_PORT_PROTOCOL_GUID \
{ \
0xc7735a2f, 0x88f5, 0x4882, {0xae, 0x63, 0xfa, 0xac, 0x8c, 0x8b, 0x86, 0xb3 } \
}
+///
+/// Forward declaration for the EFI_VGA_MINI_PORT_PROTOCOL
+///
typedef struct _EFI_VGA_MINI_PORT_PROTOCOL EFI_VGA_MINI_PORT_PROTOCOL;
/**
- Sets the text display mode of a VGA controller
+ Sets the text display mode of a VGA controller.
- @param This Protocol instance pointer.
- @param Mode Mode number. 0 - 80x25 1-80x50
+ Sets the text display mode of the VGA controller to the mode specified by
+ ModeNumber. A ModeNumber of 0 is a request for an 80x25 text mode. A
+ ModeNumber of 1 is a request for an 80x50 text mode. If ModeNumber is greater
+ than MaxModeNumber, then EFI_UNSUPPORTED is returned. If the VGA controller
+ is not functioning properly, then EFI_DEVICE_ERROR is returned. If the VGA
+ controller is sucessfully set to the mode number specified by ModeNumber, then
+ EFI_SUCCESS is returned.
+
+ @param[in] This A pointer to the EFI_VGA_MINI_PORT_PROTOCOL instance.
+ @param[in] ModeNumber The requested mode number. 0 for 80x25. 1 for 80x5.
- @retval EFI_SUCCESS The mode was set
- @retval EFI_DEVICE_ERROR The device is not functioning properly.
+ @retval EFI_SUCCESS The mode number was set
+ @retval EFI_UNSUPPORTED The mode number specified by ModeNumber is not supported.
+ @retval EFI_DEVICE_ERROR The device is not functioning properly.
**/
typedef
EFI_STATUS
-(EFIAPI *EFI_VGA_MINI_PORT_SET_MODE) (
- IN EFI_VGA_MINI_PORT_PROTOCOL * This,
- IN UINTN ModeNumber
+(EFIAPI *EFI_VGA_MINI_PORT_SET_MODE)(
+ IN EFI_VGA_MINI_PORT_PROTOCOL *This,
+ IN UINTN ModeNumber
);
struct _EFI_VGA_MINI_PORT_PROTOCOL {
EFI_VGA_MINI_PORT_SET_MODE SetMode;
-
+ ///
+ /// MMIO base address of the VGA text mode framebuffer. Typically set to 0xB8000.
+ ///
UINT64 VgaMemoryOffset;
+ ///
+ /// I/O Port address for the VGA CRTC address register Typically set to 0x3D4.
+ ///
UINT64 CrtcAddressRegisterOffset;
+ ///
+ /// I/O Port address for the VGA CRTC data register. Typically set to 0x3D5.
+ ///
UINT64 CrtcDataRegisterOffset;
-
+ ///
+ /// PCI Controller MMIO BAR index of the VGA text mode frame buffer. Typically
+ /// set to EFI_PCI_IO_PASS_THROUGH_BAR
+ ///
UINT8 VgaMemoryBar;
+ ///
+ /// PCI Controller I/O BAR index of the VGA CRTC address register. Typically
+ /// set to EFI_PCI_IO_PASS_THROUGH_BAR
+ ///
UINT8 CrtcAddressRegisterBar;
+ ///
+ /// PCI Controller I/O BAR index of the VGA CRTC data register. Typically set
+ /// to EFI_PCI_IO_PASS_THROUGH_BAR
+ ///
UINT8 CrtcDataRegisterBar;
-
+ ///
+ /// The maximum number of text modes that this VGA controller supports.
+ ///
UINT8 MaxMode;
};
|