Add in the 1st version of ECP.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2832 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
@@ -0,0 +1,317 @@
|
||||
/*++
|
||||
|
||||
Copyright (c) 1999 - 2006, 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.
|
||||
|
||||
|
||||
Module Name:
|
||||
|
||||
Legacy8259.h
|
||||
|
||||
Abstract:
|
||||
|
||||
This protocol abstracts the 8259 interrupt controller. This includes
|
||||
PCI IRQ routing need to program the PCI Interrupt Line register.
|
||||
|
||||
Revision History
|
||||
|
||||
The EFI Legacy 8259 Protocol is compliant with CSM spec 0.96.
|
||||
|
||||
--*/
|
||||
|
||||
#ifndef _EFI_LEGACY_8259_H
|
||||
#define _EFI_LEGACY_8259_H
|
||||
|
||||
#define EFI_LEGACY_8259_PROTOCOL_GUID \
|
||||
{ \
|
||||
0x38321dba, 0x4fe0, 0x4e17, 0x8a, 0xec, 0x41, 0x30, 0x55, 0xea, 0xed, 0xc1 \
|
||||
}
|
||||
|
||||
EFI_FORWARD_DECLARATION (EFI_LEGACY_8259_PROTOCOL);
|
||||
|
||||
typedef enum {
|
||||
Efi8259Irq0,
|
||||
Efi8259Irq1,
|
||||
Efi8259Irq2,
|
||||
Efi8259Irq3,
|
||||
Efi8259Irq4,
|
||||
Efi8259Irq5,
|
||||
Efi8259Irq6,
|
||||
Efi8259Irq7,
|
||||
Efi8259Irq8,
|
||||
Efi8259Irq9,
|
||||
Efi8259Irq10,
|
||||
Efi8259Irq11,
|
||||
Efi8259Irq12,
|
||||
Efi8259Irq13,
|
||||
Efi8259Irq14,
|
||||
Efi8259Irq15,
|
||||
Efi8259IrqMax
|
||||
} EFI_8259_IRQ;
|
||||
|
||||
typedef enum {
|
||||
Efi8259LegacyMode,
|
||||
Efi8259ProtectedMode,
|
||||
Efi8259MaxMode
|
||||
} EFI_8259_MODE;
|
||||
|
||||
typedef
|
||||
EFI_STATUS
|
||||
(EFIAPI *EFI_LEGACY_8259_SET_VECTOR_BASE) (
|
||||
IN EFI_LEGACY_8259_PROTOCOL * This,
|
||||
IN UINT8 MasterBase,
|
||||
IN UINT8 SlaveBase
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
Get the 8259 interrupt masks for Irq0 - Irq15. A different mask exists for
|
||||
the legacy mode mask and the protected mode mask. The base address for the 8259
|
||||
is different for legacy and protected mode, so two masks are required.
|
||||
|
||||
Arguments:
|
||||
This - Protocol instance pointer.
|
||||
MasterBase - The base vector for the Master PIC in the 8259 controller
|
||||
Slavebase - The base vector for the Master PIC in the 8259 controller
|
||||
|
||||
Returns:
|
||||
EFI_SUCCESS - The new bases were programmed
|
||||
EFI_DEVICE_ERROR - A device erro occured programming the vector bases
|
||||
|
||||
--*/
|
||||
;
|
||||
|
||||
typedef
|
||||
EFI_STATUS
|
||||
(EFIAPI *EFI_LEGACY_8259_GET_MASK) (
|
||||
IN EFI_LEGACY_8259_PROTOCOL * This,
|
||||
OUT UINT16 *LegacyMask, OPTIONAL
|
||||
OUT UINT16 *LegacyEdgeLevel, OPTIONAL
|
||||
OUT UINT16 *ProtectedMask, OPTIONAL
|
||||
OUT UINT16 *ProtectedEdgeLevel OPTIONAL
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
Get the 8259 interrupt masks for Irq0 - Irq15. A different mask exists for
|
||||
the legacy mode mask and the protected mode mask. The base address for the 8259
|
||||
is different for legacy and protected mode, so two masks are required.
|
||||
|
||||
Arguments:
|
||||
This - Protocol instance pointer.
|
||||
LegacyMask - Bit 0 is Irq0 - Bit 15 is Irq15
|
||||
LegacyEdgeLevel - Bit 0 is Irq0 - Bit 15 is Irq15
|
||||
ProtectedMask - Bit 0 is Irq0 - Bit 15 is Irq15
|
||||
ProtectedEdgeLevel - Bit 0 is Irq0 - Bit 15 is Irq15
|
||||
|
||||
Returns:
|
||||
EFI_SUCCESS - 8259 status returned
|
||||
EFI_DEVICE_ERROR - Error reading 8259
|
||||
|
||||
--*/
|
||||
;
|
||||
|
||||
typedef
|
||||
EFI_STATUS
|
||||
(EFIAPI *EFI_LEGACY_8259_SET_MASK) (
|
||||
IN EFI_LEGACY_8259_PROTOCOL * This,
|
||||
IN UINT16 *LegacyMask, OPTIONAL
|
||||
IN UINT16 *LegacyEdgeLevel, OPTIONAL
|
||||
IN UINT16 *ProtectedMask, OPTIONAL
|
||||
IN UINT16 *ProtectedEdgeLevel OPTIONAL
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
Set the 8259 interrupt masks for Irq0 - Irq15. A different mask exists for
|
||||
the legacy mode mask and the protected mode mask. The base address for the 8259
|
||||
is different for legacy and protected mode, so two masks are required.
|
||||
Also set the edge/level masks.
|
||||
|
||||
Arguments:
|
||||
This - Protocol instance pointer.
|
||||
LegacyMask - Bit 0 is Irq0 - Bit 15 is Irq15
|
||||
LegacyEdgeLevel - Bit 0 is Irq0 - Bit 15 is Irq15
|
||||
ProtectedMask - Bit 0 is Irq0 - Bit 15 is Irq15
|
||||
ProtectedEdgeLevel - Bit 0 is Irq0 - Bit 15 is Irq15
|
||||
|
||||
Returns:
|
||||
EFI_SUCCESS - 8259 status returned
|
||||
EFI_DEVICE_ERROR - Error reading 8259
|
||||
|
||||
--*/
|
||||
;
|
||||
|
||||
typedef
|
||||
EFI_STATUS
|
||||
(EFIAPI *EFI_LEGACY_8259_SET_MODE) (
|
||||
IN EFI_LEGACY_8259_PROTOCOL * This,
|
||||
IN EFI_8259_MODE Mode,
|
||||
IN UINT16 *Mask, OPTIONAL
|
||||
IN UINT16 *EdgeLevel OPTIONAL
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
Set the 8259 mode of operation. The base address for the 8259 is different for
|
||||
legacy and protected mode. The legacy mode requires the master 8259 to have a
|
||||
master base of 0x08 and the slave base of 0x70. The protected mode base locations
|
||||
are not defined. Interrupts must be masked by the caller before this function
|
||||
is called. The interrupt mask from the current mode is saved. The interrupt
|
||||
mask for the new mode is Mask, or if Mask does not exist the previously saved
|
||||
mask is used.
|
||||
|
||||
|
||||
Arguments:
|
||||
This - Protocol instance pointer.
|
||||
Mode - Mode of operation. i.e. real mode or protected mode
|
||||
Mask - Optional interupt mask for the new mode.
|
||||
EdgeLevel - Optional trigger mask for the new mode.
|
||||
|
||||
Returns:
|
||||
EFI_SUCCESS - 8259 programmed
|
||||
EFI_DEVICE_ERROR - Error writting to 8259
|
||||
|
||||
--*/
|
||||
;
|
||||
|
||||
typedef
|
||||
EFI_STATUS
|
||||
(EFIAPI *EFI_LEGACY_8259_GET_VECTOR) (
|
||||
IN EFI_LEGACY_8259_PROTOCOL * This,
|
||||
IN EFI_8259_IRQ Irq,
|
||||
OUT UINT8 *Vector
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
Convert from IRQ to processor interrupt vector number.
|
||||
|
||||
Arguments:
|
||||
This - Protocol instance pointer.
|
||||
Irq - 8259 IRQ0 - IRQ15
|
||||
Vector - Processor vector number that matches Irq
|
||||
|
||||
Returns:
|
||||
EFI_SUCCESS - The Vector matching Irq is returned
|
||||
EFI_INVALID_PARAMETER - Irq not valid
|
||||
|
||||
--*/
|
||||
;
|
||||
|
||||
typedef
|
||||
EFI_STATUS
|
||||
(EFIAPI *EFI_LEGACY_8259_ENABLE_IRQ) (
|
||||
IN EFI_LEGACY_8259_PROTOCOL * This,
|
||||
IN EFI_8259_IRQ Irq,
|
||||
IN BOOLEAN LevelTriggered
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
Enable Irq by unmasking interrupt in 8259
|
||||
|
||||
Arguments:
|
||||
This - Protocol instance pointer.
|
||||
Irq - 8259 IRQ0 - IRQ15
|
||||
LevelTriggered - TRUE if level triggered. FALSE if edge triggered.
|
||||
|
||||
Returns:
|
||||
EFI_SUCCESS - Irq enabled on 8259
|
||||
EFI_INVALID_PARAMETER - Irq not valid
|
||||
|
||||
--*/
|
||||
;
|
||||
|
||||
typedef
|
||||
EFI_STATUS
|
||||
(EFIAPI *EFI_LEGACY_8259_DISABLE_IRQ) (
|
||||
IN EFI_LEGACY_8259_PROTOCOL * This,
|
||||
IN EFI_8259_IRQ Irq
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
Disable Irq by masking interrupt in 8259
|
||||
|
||||
Arguments:
|
||||
This - Protocol instance pointer.
|
||||
Irq - 8259 IRQ0 - IRQ15
|
||||
|
||||
Returns:
|
||||
EFI_SUCCESS - Irq disabled on 8259
|
||||
EFI_INVALID_PARAMETER - Irq not valid
|
||||
|
||||
--*/
|
||||
;
|
||||
|
||||
typedef
|
||||
EFI_STATUS
|
||||
(EFIAPI *EFI_LEGACY_8259_GET_INTERRUPT_LINE) (
|
||||
IN EFI_LEGACY_8259_PROTOCOL * This,
|
||||
IN EFI_HANDLE PciHandle,
|
||||
OUT UINT8 *Vector
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
PciHandle represents a PCI config space of a PCI function. Vector
|
||||
represents Interrupt Pin (from PCI config space) and it is the data
|
||||
that is programmed into the Interrupt Line (from the PCI config space)
|
||||
register.
|
||||
|
||||
Arguments:
|
||||
This - Protocol instance pointer.
|
||||
PciHandle - PCI function to return vector for
|
||||
Vector - Vector for fucntion that matches
|
||||
|
||||
Returns:
|
||||
EFI_SUCCESS - A valid Vector is returned
|
||||
EFI_INVALID_PARAMETER - PciHandle not valid
|
||||
|
||||
--*/
|
||||
;
|
||||
|
||||
typedef
|
||||
EFI_STATUS
|
||||
(EFIAPI *EFI_LEGACY_8259_END_OF_INTERRUPT) (
|
||||
IN EFI_LEGACY_8259_PROTOCOL * This,
|
||||
IN EFI_8259_IRQ Irq
|
||||
)
|
||||
/*++
|
||||
|
||||
Routine Description:
|
||||
Send an EOI to 8259
|
||||
|
||||
Arguments:
|
||||
This - Protocol instance pointer.
|
||||
Irq - 8259 IRQ0 - IRQ15
|
||||
|
||||
Returns:
|
||||
EFI_SUCCESS - EOI successfully sent to 8259
|
||||
EFI_INVALID_PARAMETER - Irq not valid
|
||||
|
||||
--*/
|
||||
;
|
||||
|
||||
typedef struct _EFI_LEGACY_8259_PROTOCOL {
|
||||
EFI_LEGACY_8259_SET_VECTOR_BASE SetVectorBase;
|
||||
EFI_LEGACY_8259_GET_MASK GetMask;
|
||||
EFI_LEGACY_8259_SET_MASK SetMask;
|
||||
EFI_LEGACY_8259_SET_MODE SetMode;
|
||||
EFI_LEGACY_8259_GET_VECTOR GetVector;
|
||||
EFI_LEGACY_8259_ENABLE_IRQ EnableIrq;
|
||||
EFI_LEGACY_8259_DISABLE_IRQ DisableIrq;
|
||||
EFI_LEGACY_8259_GET_INTERRUPT_LINE GetInterruptLine;
|
||||
EFI_LEGACY_8259_END_OF_INTERRUPT EndOfInterrupt;
|
||||
} EFI_LEGACY_8259_PROTOCOL;
|
||||
|
||||
extern EFI_GUID gEfiLegacy8259ProtocolGuid;
|
||||
|
||||
#endif
|
Reference in New Issue
Block a user