+++ /dev/null
-/**@file\r
- This contains the installation function for the driver.\r
- \r
-Copyright (c) 2005 - 2008, Intel Corporation \r
-All rights reserved. This program and the accompanying materials \r
-are licensed and made available under the terms and conditions of the BSD License \r
-which accompanies this distribution. The full text of the license may be found at \r
-http://opensource.org/licenses/bsd-license.php \r
- \r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
-\r
-**/\r
-\r
-#include "8259.h"\r
-\r
-//\r
-// Global for the Legacy 8259 Protocol that is prodiced by this driver\r
-//\r
-EFI_LEGACY_8259_PROTOCOL m8259 = {\r
- Interrupt8259SetVectorBase,\r
- Interrupt8259GetMask,\r
- Interrupt8259SetMask,\r
- Interrupt8259SetMode,\r
- Interrupt8259GetVector,\r
- Interrupt8259EnableIrq,\r
- Interrupt8259DisableIrq,\r
- Interrupt8259GetInterruptLine,\r
- Interrupt8259EndOfInterrupt\r
-};\r
-\r
-//\r
-// Global for the handle that the Legacy 8259 Protocol is installed\r
-//\r
-EFI_HANDLE m8259Handle = NULL;\r
-\r
-UINT8 mMasterBase = 0xff;\r
-UINT8 mSlaveBase = 0xff;\r
-EFI_8259_MODE mMode = Efi8259ProtectedMode;\r
-UINT16 mProtectedModeMask = 0xffff;\r
-UINT16 mLegacyModeMask = 0x06b8;\r
-UINT16 mProtectedModeEdgeLevel = 0x0000;\r
-UINT16 mLegacyModeEdgeLevel = 0x0000;\r
-\r
-//\r
-// Worker Functions\r
-//\r
-VOID\r
-Interrupt8259WriteMask (\r
- IN UINT16 Mask,\r
- IN UINT16 EdgeLevel\r
- )\r
-/**\r
-\r
- Routine Description:\r
- Sets the 8250 mask to the valud specified by Mask\r
-\r
- Arguments:\r
- Mask - A 16 bit valute that represents the master and slave mask values\r
-\r
- Returns:\r
- None\r
-\r
-**/\r
-// TODO: EdgeLevel - add argument and description to function comment\r
-{\r
- IoWrite8 (LEGACY_8259_MASK_REGISTER_MASTER, (UINT8) Mask);\r
- IoWrite8 (LEGACY_8259_MASK_REGISTER_SLAVE, (UINT8) (Mask >> 8));\r
- IoWrite8 (LEGACY_8259_EDGE_LEVEL_TRIGGERED_REGISTER_MASTER, (UINT8) EdgeLevel);\r
- IoWrite8 (LEGACY_8259_EDGE_LEVEL_TRIGGERED_REGISTER_SLAVE, (UINT8) (EdgeLevel >> 8));\r
-}\r
-\r
-VOID\r
-Interrupt8259ReadMask (\r
- IN UINT16 *Mask,\r
- IN UINT16 *EdgeLevel\r
- )\r
-/**\r
-\r
- Routine Description:\r
- Sets the 8250 mask to the valud specified by Mask\r
-\r
- Arguments:\r
- Mask - A 16 bit valute that represents the master and slave mask values\r
-\r
- Returns:\r
- None\r
-\r
-**/\r
-// TODO: EdgeLevel - add argument and description to function comment\r
-{\r
- UINT16 MasterValue;\r
- UINT16 SlaveValue;\r
-\r
- if (Mask != NULL) {\r
- MasterValue = IoRead8 (LEGACY_8259_MASK_REGISTER_MASTER);\r
- SlaveValue = IoRead8 (LEGACY_8259_MASK_REGISTER_SLAVE);\r
-\r
- *Mask = (UINT16) (MasterValue | (SlaveValue << 8));\r
- }\r
-\r
- if (EdgeLevel != NULL) {\r
- MasterValue = IoRead8 (LEGACY_8259_EDGE_LEVEL_TRIGGERED_REGISTER_MASTER);\r
- SlaveValue = IoRead8 (LEGACY_8259_EDGE_LEVEL_TRIGGERED_REGISTER_SLAVE);\r
-\r
- *EdgeLevel = (UINT16) (MasterValue | (SlaveValue << 8));\r
- }\r
-}\r
-//\r
-// Legacy 8259 Protocol Interface Function\r
-//\r
-EFI_STATUS\r
-EFIAPI\r
-Interrupt8259SetVectorBase (\r
- IN EFI_LEGACY_8259_PROTOCOL *This,\r
- IN UINT8 MasterBase,\r
- IN UINT8 SlaveBase\r
- )\r
-/**\r
-\r
- Routine Description:\r
- Sets the base vector for the 8250 Master and Slave interrupt controllers\r
-\r
- Arguments:\r
- This - Protocol instance pointer.\r
- MasterBase - Base vector of the 8259 Master\r
- SlaveBase - Base vector of the 8259 Slave\r
-\r
- Returns:\r
- EFI_SUCCESS - 8259 programmed\r
-\r
-**/\r
-{\r
- UINT8 Mask;\r
-\r
- if (SlaveBase != mSlaveBase) {\r
- mSlaveBase = SlaveBase;\r
-\r
- //\r
- // Initialize Slave interrupt controller.\r
- //\r
- Mask = IoRead8 (LEGACY_8259_MASK_REGISTER_SLAVE);\r
- IoWrite8 (LEGACY_8259_CONTROL_REGISTER_SLAVE, 0x11);\r
- IoWrite8 (LEGACY_8259_MASK_REGISTER_SLAVE, mSlaveBase);\r
- IoWrite8 (LEGACY_8259_MASK_REGISTER_SLAVE, 0x02);\r
- IoWrite8 (LEGACY_8259_MASK_REGISTER_SLAVE, 0x01);\r
- IoWrite8 (LEGACY_8259_MASK_REGISTER_SLAVE, Mask);\r
- }\r
-\r
- if (MasterBase != mMasterBase) {\r
- mMasterBase = MasterBase;\r
-\r
- //\r
- // Initialize Master interrupt controller.\r
- //\r
- Mask = IoRead8 (LEGACY_8259_MASK_REGISTER_MASTER);\r
- IoWrite8 (LEGACY_8259_CONTROL_REGISTER_MASTER, 0x11);\r
- IoWrite8 (LEGACY_8259_MASK_REGISTER_MASTER, mMasterBase);\r
- IoWrite8 (LEGACY_8259_MASK_REGISTER_MASTER, 0x04);\r
- IoWrite8 (LEGACY_8259_MASK_REGISTER_MASTER, 0x01);\r
- IoWrite8 (LEGACY_8259_MASK_REGISTER_MASTER, Mask);\r
- }\r
-\r
- IoWrite8 (LEGACY_8259_CONTROL_REGISTER_SLAVE, 0x20);\r
- IoWrite8 (LEGACY_8259_CONTROL_REGISTER_MASTER, 0x20);\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-Interrupt8259GetMask (\r
- IN EFI_LEGACY_8259_PROTOCOL * This,\r
- OUT UINT16 *LegacyMask, OPTIONAL\r
- OUT UINT16 *LegacyEdgeLevel, OPTIONAL\r
- OUT UINT16 *ProtectedMask, OPTIONAL\r
- OUT UINT16 *ProtectedEdgeLevel OPTIONAL\r
- )\r
-/**\r
-\r
- Routine Description:\r
- Get the 8259 master and slave address that maps IRQ to processor interrupt \r
- vector number. Get the Context of the device including the state of the\r
- interrupt mask.\r
-\r
- Arguments:\r
- This - Protocol instance pointer.\r
-\r
- Returns:\r
- EFI_SUCCESS - 8259 programmed\r
- EFI_DEVICE_ERROR - Error writting to 8259\r
-\r
-**/\r
-// TODO: LegacyMask - add argument and description to function comment\r
-// TODO: LegacyEdgeLevel - add argument and description to function comment\r
-// TODO: ProtectedMask - add argument and description to function comment\r
-// TODO: ProtectedEdgeLevel - add argument and description to function comment\r
-{\r
- if (LegacyMask != NULL) {\r
- *LegacyMask = mLegacyModeMask;\r
- }\r
-\r
- if (LegacyEdgeLevel != NULL) {\r
- *LegacyEdgeLevel = mLegacyModeEdgeLevel;\r
- }\r
-\r
- if (ProtectedMask != NULL) {\r
- *ProtectedMask = mProtectedModeMask;\r
- }\r
-\r
- if (ProtectedEdgeLevel != NULL) {\r
- *ProtectedEdgeLevel = mProtectedModeEdgeLevel;\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-Interrupt8259SetMask (\r
- IN EFI_LEGACY_8259_PROTOCOL * This,\r
- IN UINT16 *LegacyMask, OPTIONAL\r
- IN UINT16 *LegacyEdgeLevel, OPTIONAL\r
- IN UINT16 *ProtectedMask, OPTIONAL\r
- IN UINT16 *ProtectedEdgeLevel OPTIONAL\r
- )\r
-/**\r
-\r
- Routine Description:\r
- Set the 8259 interrupt and edge/level masks for legacy and/or protected \r
- mode operation. This routine does not touch the hardware but only the\r
- RAM copies of the masks.\r
-\r
- Arguments:\r
- This - Protocol instance pointer.\r
-\r
- Returns:\r
- EFI_SUCCESS - 8259 masks updated\r
-\r
-**/\r
-// TODO: LegacyMask - add argument and description to function comment\r
-// TODO: LegacyEdgeLevel - add argument and description to function comment\r
-// TODO: ProtectedMask - add argument and description to function comment\r
-// TODO: ProtectedEdgeLevel - add argument and description to function comment\r
-{\r
- if (LegacyMask != NULL) {\r
- mLegacyModeMask = *LegacyMask;\r
- }\r
-\r
- if (LegacyEdgeLevel != NULL) {\r
- mLegacyModeEdgeLevel = *LegacyEdgeLevel;\r
- }\r
-\r
- if (ProtectedMask != NULL) {\r
- mProtectedModeMask = *ProtectedMask;\r
- }\r
-\r
- if (ProtectedEdgeLevel != NULL) {\r
- mProtectedModeEdgeLevel = *ProtectedEdgeLevel;\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-Interrupt8259SetMode (\r
- IN EFI_LEGACY_8259_PROTOCOL * This,\r
- IN EFI_8259_MODE Mode,\r
- IN UINT16 *Mask, OPTIONAL\r
- IN UINT16 *EdgeLevel OPTIONAL\r
- )\r
-/**\r
-\r
- Routine Description:\r
- Set the 8259 master and slave address that maps IRQ to processor interrupt \r
- vector number. Restore the Context of the device, so that the interrupt\r
- mask is put back in it's previous mode.\r
-\r
- Arguments:\r
- This - Protocol instance pointer.\r
- Mode - \r
- Mask -\r
-\r
- Returns:\r
- EFI_SUCCESS - 8259 programmed\r
- EFI_DEVICE_ERROR - Error writting to 8259\r
-\r
-**/\r
-// TODO: EdgeLevel - add argument and description to function comment\r
-// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
-{\r
- if (Mode == mMode) {\r
- return EFI_SUCCESS;\r
- }\r
-\r
- if (Mode == Efi8259LegacyMode) {\r
- //\r
- // Save the protected mode mask\r
- //\r
- Interrupt8259ReadMask (&mProtectedModeMask, &mProtectedModeEdgeLevel);\r
-\r
- if (Mask != NULL) {\r
- //\r
- // Update the Mask for the new mode\r
- //\r
- mLegacyModeMask = *Mask;\r
- }\r
-\r
- if (EdgeLevel != NULL) {\r
- //\r
- // Update the Edge/Level triggered mask for the new mode\r
- //\r
- mLegacyModeEdgeLevel = *EdgeLevel;\r
- }\r
-\r
- mMode = Mode;\r
-\r
- //\r
- // Set 8259 Vector Base\r
- //\r
- //\r
- Interrupt8259SetVectorBase (This, LEGACY_MODE_BASE_VECTOR_MASTER, LEGACY_MODE_BASE_VECTOR_SLAVE);\r
-\r
- //\r
- // Enable Interrupts\r
- //\r
- Interrupt8259WriteMask (mLegacyModeMask, mLegacyModeEdgeLevel);\r
-\r
- return EFI_SUCCESS;\r
- }\r
-\r
- if (Mode == Efi8259ProtectedMode) {\r
- //\r
- // Save the legacy mode mask\r
- //\r
- Interrupt8259ReadMask (&mLegacyModeMask, &mLegacyModeEdgeLevel);\r
- //\r
- // Always force Timer to be enabled after return from 16-bit code.\r
- // This always insures that on next entry, timer is counting.\r
- //\r
- mLegacyModeMask &= 0xFFFE;\r
-\r
- if (Mask != NULL) {\r
- //\r
- // Update the Mask for the new mode\r
- //\r
- mProtectedModeMask = *Mask;\r
- }\r
-\r
- if (EdgeLevel != NULL) {\r
- //\r
- // Update the Edge/Level triggered mask for the new mode\r
- //\r
- mProtectedModeEdgeLevel = *EdgeLevel;\r
- }\r
-\r
- mMode = Mode;\r
-\r
- //\r
- // Set 8259 Vector Base\r
- //\r
- //\r
- Interrupt8259SetVectorBase (This, PROTECTED_MODE_BASE_VECTOR_MASTER, PROTECTED_MODE_BASE_VECTOR_SLAVE);\r
-\r
- //\r
- // Enable Interrupts\r
- //\r
- Interrupt8259WriteMask (mProtectedModeMask, mProtectedModeEdgeLevel);\r
-\r
- return EFI_SUCCESS;\r
- }\r
-\r
- return EFI_INVALID_PARAMETER;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-Interrupt8259GetVector (\r
- IN EFI_LEGACY_8259_PROTOCOL *This,\r
- IN EFI_8259_IRQ Irq,\r
- OUT UINT8 *Vector\r
- )\r
-/**\r
-\r
- Routine Description:\r
- Convert from IRQ to processor interrupt vector number.\r
-\r
- Arguments:\r
- This - Protocol instance pointer.\r
- Irq - 8259 IRQ0 - IRQ15\r
- Vector - Processor vector number that matches Irq\r
-\r
- Returns:\r
- EFI_SUCCESS - The Vector matching Irq is returned\r
- EFI_INVALID_PARAMETER - Irq not valid\r
-\r
-**/\r
-{\r
- if (Irq < Efi8259Irq0 || Irq > Efi8259Irq15) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (Irq <= Efi8259Irq7) {\r
- *Vector = (UINT8) (mMasterBase + Irq);\r
- } else {\r
- *Vector = (UINT8) (mSlaveBase + (Irq - Efi8259Irq8));\r
- }\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-Interrupt8259EnableIrq (\r
- IN EFI_LEGACY_8259_PROTOCOL *This,\r
- IN EFI_8259_IRQ Irq,\r
- IN BOOLEAN LevelTriggered\r
- )\r
-/**\r
-\r
- Routine Description:\r
- Enable Irq by unmasking interrupt in 8259\r
-\r
- Arguments:\r
- This - Protocol instance pointer.\r
- Irq - 8259 IRQ0 - IRQ15\r
-\r
- Returns:\r
- EFI_SUCCESS - Irq enabled on 8259\r
- EFI_INVALID_PARAMETER - Irq not valid\r
-\r
-**/\r
-// TODO: LevelTriggered - add argument and description to function comment\r
-{\r
- if (Irq < Efi8259Irq0 || Irq > Efi8259Irq15) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- mProtectedModeMask = (UINT16) (mProtectedModeMask & ~(1 << Irq));\r
- if (LevelTriggered) {\r
- mProtectedModeEdgeLevel = (UINT16) (mProtectedModeEdgeLevel | (1 << Irq));\r
- } else {\r
- mProtectedModeEdgeLevel = (UINT16) (mProtectedModeEdgeLevel & ~(1 << Irq));\r
- }\r
-\r
- Interrupt8259WriteMask (mProtectedModeMask, mProtectedModeEdgeLevel);\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-Interrupt8259DisableIrq (\r
- IN EFI_LEGACY_8259_PROTOCOL *This,\r
- IN EFI_8259_IRQ Irq\r
- )\r
-/**\r
-\r
- Routine Description:\r
- Disable Irq by masking interrupt in 8259\r
-\r
- Arguments:\r
- This - Protocol instance pointer.\r
- Irq - 8259 IRQ0 - IRQ15\r
-\r
- Returns:\r
- EFI_SUCCESS - Irq disabled on 8259\r
- EFI_INVALID_PARAMETER - Irq not valid\r
-\r
-**/\r
-{\r
- if (Irq < Efi8259Irq0 || Irq > Efi8259Irq15) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- mProtectedModeMask = (UINT16) (mProtectedModeMask | (1 << Irq));\r
- mProtectedModeEdgeLevel = (UINT16) (mProtectedModeEdgeLevel & ~(1 << Irq));\r
-\r
- Interrupt8259WriteMask (mProtectedModeMask, mProtectedModeEdgeLevel);\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-Interrupt8259GetInterruptLine (\r
- IN EFI_LEGACY_8259_PROTOCOL *This,\r
- IN EFI_HANDLE PciHandle,\r
- OUT UINT8 *Vector\r
- )\r
-/**\r
-\r
- Routine Description:\r
- PciHandle represents a PCI config space of a PCI function. Vector \r
- represents Interrupt Pin (from PCI config space) and it is the data\r
- that is programmed into the Interrupt Line (from the PCI config space)\r
- register.\r
-\r
- Arguments:\r
- This - Protocol instance pointer.\r
- PciHandle - PCI function to return vector for \r
- Vector - Vector for fucntion that matches \r
-\r
- Returns:\r
- EFI_SUCCESS - A valid Vector is returned\r
- EFI_INVALID_PARAMETER - PciHandle not valid\r
-\r
-**/\r
-{\r
- return EFI_UNSUPPORTED;\r
-}\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-Interrupt8259EndOfInterrupt (\r
- IN EFI_LEGACY_8259_PROTOCOL *This,\r
- IN EFI_8259_IRQ Irq\r
- )\r
-/**\r
-\r
- Routine Description:\r
- Send an EOI to 8259\r
-\r
- Arguments:\r
- This - Protocol instance pointer.\r
- Irq - 8259 IRQ0 - IRQ15\r
-\r
- Returns:\r
- EFI_SUCCESS - EOI successfully sent to 8259\r
- EFI_INVALID_PARAMETER - Irq not valid\r
-\r
-**/\r
-{\r
- if (Irq < Efi8259Irq0 || Irq > Efi8259Irq15) {\r
- return EFI_INVALID_PARAMETER;\r
- }\r
-\r
- if (Irq >= Efi8259Irq8) {\r
- IoWrite8 (LEGACY_8259_CONTROL_REGISTER_SLAVE, LEGACY_8259_EOI);\r
- }\r
-\r
- IoWrite8 (LEGACY_8259_CONTROL_REGISTER_MASTER, LEGACY_8259_EOI);\r
-\r
- return EFI_SUCCESS;\r
-}\r
-\r
-//\r
-// Legacy 8259 Driver Entry Point\r
-//\r
-EFI_STATUS\r
-EFIAPI\r
-Install8259 (\r
- IN EFI_HANDLE ImageHandle,\r
- IN EFI_SYSTEM_TABLE *SystemTable\r
- )\r
-/**\r
-\r
-Routine Description:\r
- \r
-\r
-Arguments:\r
-\r
- (Standard EFI Image entry - EFI_IMAGE_ENTRY_POINT)\r
-\r
-Returns:\r
-\r
- EFI_SUCCESS - Legacy 8259 Protocol Installed\r
-\r
-**/\r
-// TODO: ImageHandle - add argument and description to function comment\r
-// TODO: SystemTable - add argument and description to function comment\r
-{\r
- EFI_STATUS Status;\r
- EFI_8259_IRQ Irq;\r
-\r
- //\r
- // Clear all pending interrupt\r
- //\r
- for (Irq = Efi8259Irq0; Irq <= Efi8259Irq15; Irq++) {\r
- Interrupt8259EndOfInterrupt (&m8259, Irq);\r
- }\r
-\r
- //\r
- // Set the 8259 Master base to 0x68 and the 8259 Slave base to 0x70\r
- //\r
- Status = Interrupt8259SetVectorBase (&m8259, PROTECTED_MODE_BASE_VECTOR_MASTER, PROTECTED_MODE_BASE_VECTOR_SLAVE);\r
-\r
- //\r
- // Set all 8259 interrupts to edge triggered and disabled\r
- //\r
- Interrupt8259WriteMask (mProtectedModeMask, mProtectedModeEdgeLevel);\r
-\r
- //\r
- // Install 8259 Protocol onto a new handle\r
- //\r
- Status = gBS->InstallProtocolInterface (\r
- &m8259Handle,\r
- &gEfiLegacy8259ProtocolGuid,\r
- EFI_NATIVE_INTERFACE,\r
- &m8259\r
- );\r
- return Status;\r
-}\r
-\r
+++ /dev/null
-/**\r
-\r
-Copyright (c) 2005, Intel Corporation \r
-All rights reserved. This program and the accompanying materials \r
-are licensed and made available under the terms and conditions of the BSD License \r
-which accompanies this distribution. The full text of the license may be found at \r
-http://opensource.org/licenses/bsd-license.php \r
- \r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
-\r
-Module Name:\r
- 8259.h\r
-\r
-Abstract:\r
-\r
- Driver implementing the Tiano Legacy 8259 Protocol\r
-\r
-**/\r
-\r
-#ifndef _8259_H__\r
-#define _8259_H__\r
-\r
-#include <FrameworkDxe.h>\r
-\r
-#include <Protocol/Legacy8259.h>\r
-\r
-#include <Library/UefiBootServicesTableLib.h>\r
-#include <Library/DebugLib.h>\r
-#include <Library/IoLib.h>\r
-\r
-//\r
-// 8259 Hardware definitions\r
-//\r
-#define LEGACY_MODE_BASE_VECTOR_MASTER 0x08\r
-#define LEGACY_MODE_BASE_VECTOR_SLAVE 0x70\r
-\r
-#define PROTECTED_MODE_BASE_VECTOR_MASTER 0x68\r
-#define PROTECTED_MODE_BASE_VECTOR_SLAVE 0x70\r
-\r
-#define LEGACY_8259_CONTROL_REGISTER_MASTER 0x20\r
-#define LEGACY_8259_MASK_REGISTER_MASTER 0x21\r
-#define LEGACY_8259_CONTROL_REGISTER_SLAVE 0xA0\r
-#define LEGACY_8259_MASK_REGISTER_SLAVE 0xA1\r
-#define LEGACY_8259_EDGE_LEVEL_TRIGGERED_REGISTER_MASTER 0x4D0\r
-#define LEGACY_8259_EDGE_LEVEL_TRIGGERED_REGISTER_SLAVE 0x4D1\r
-\r
-#define LEGACY_8259_EOI 0x20\r
-\r
-//\r
-// Protocol Function Prototypes\r
-//\r
-EFI_STATUS\r
-EFIAPI\r
-Interrupt8259SetVectorBase (\r
- IN EFI_LEGACY_8259_PROTOCOL *This,\r
- IN UINT8 MasterBase,\r
- IN UINT8 SlaveBase\r
- )\r
-/**\r
-\r
-Routine Description:\r
-\r
- TODO: Add function description\r
-\r
-Arguments:\r
-\r
- This - TODO: add argument description\r
- MasterBase - TODO: add argument description\r
- SlaveBase - TODO: add argument description\r
-\r
-Returns:\r
-\r
- TODO: add return values\r
-\r
-**/\r
-;\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-Interrupt8259GetMask (\r
- IN EFI_LEGACY_8259_PROTOCOL * This,\r
- OUT UINT16 *LegacyMask, OPTIONAL\r
- OUT UINT16 *LegacyEdgeLevel, OPTIONAL\r
- OUT UINT16 *ProtectedMask, OPTIONAL\r
- OUT UINT16 *ProtectedEdgeLevel OPTIONAL\r
- )\r
-/**\r
-\r
-Routine Description:\r
-\r
- TODO: Add function description\r
-\r
-Arguments:\r
-\r
- This - TODO: add argument description\r
- LegacyMask - TODO: add argument description\r
- LegacyEdgeLevel - TODO: add argument description\r
- ProtectedMask - TODO: add argument description\r
- ProtectedEdgeLevel - TODO: add argument description\r
-\r
-Returns:\r
-\r
- TODO: add return values\r
-\r
-**/\r
-;\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-Interrupt8259SetMask (\r
- IN EFI_LEGACY_8259_PROTOCOL * This,\r
- IN UINT16 *LegacyMask, OPTIONAL\r
- IN UINT16 *LegacyEdgeLevel, OPTIONAL\r
- IN UINT16 *ProtectedMask, OPTIONAL\r
- IN UINT16 *ProtectedEdgeLevel OPTIONAL\r
- )\r
-/**\r
-\r
-Routine Description:\r
-\r
- TODO: Add function description\r
-\r
-Arguments:\r
-\r
- This - TODO: add argument description\r
- LegacyMask - TODO: add argument description\r
- LegacyEdgeLevel - TODO: add argument description\r
- ProtectedMask - TODO: add argument description\r
- ProtectedEdgeLevel - TODO: add argument description\r
-\r
-Returns:\r
-\r
- TODO: add return values\r
-\r
-**/\r
-;\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-Interrupt8259SetMode (\r
- IN EFI_LEGACY_8259_PROTOCOL * This,\r
- IN EFI_8259_MODE Mode,\r
- IN UINT16 *Mask, OPTIONAL\r
- IN UINT16 *EdgeLevel OPTIONAL\r
- )\r
-/**\r
-\r
-Routine Description:\r
-\r
- TODO: Add function description\r
-\r
-Arguments:\r
-\r
- This - TODO: add argument description\r
- Mode - TODO: add argument description\r
- Mask - TODO: add argument description\r
- EdgeLevel - TODO: add argument description\r
-\r
-Returns:\r
-\r
- TODO: add return values\r
-\r
-**/\r
-;\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-Interrupt8259GetVector (\r
- IN EFI_LEGACY_8259_PROTOCOL *This,\r
- IN EFI_8259_IRQ Irq,\r
- OUT UINT8 *Vector\r
- )\r
-/**\r
-\r
-Routine Description:\r
-\r
- TODO: Add function description\r
-\r
-Arguments:\r
-\r
- This - TODO: add argument description\r
- Irq - TODO: add argument description\r
- Vector - TODO: add argument description\r
-\r
-Returns:\r
-\r
- TODO: add return values\r
-\r
-**/\r
-;\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-Interrupt8259EnableIrq (\r
- IN EFI_LEGACY_8259_PROTOCOL *This,\r
- IN EFI_8259_IRQ Irq,\r
- IN BOOLEAN LevelTriggered\r
- )\r
-/**\r
-\r
-Routine Description:\r
-\r
- TODO: Add function description\r
-\r
-Arguments:\r
-\r
- This - TODO: add argument description\r
- Irq - TODO: add argument description\r
- LevelTriggered - TODO: add argument description\r
-\r
-Returns:\r
-\r
- TODO: add return values\r
-\r
-**/\r
-;\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-Interrupt8259DisableIrq (\r
- IN EFI_LEGACY_8259_PROTOCOL *This,\r
- IN EFI_8259_IRQ Irq\r
- )\r
-/**\r
-\r
-Routine Description:\r
-\r
- TODO: Add function description\r
-\r
-Arguments:\r
-\r
- This - TODO: add argument description\r
- Irq - TODO: add argument description\r
-\r
-Returns:\r
-\r
- TODO: add return values\r
-\r
-**/\r
-;\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-Interrupt8259GetInterruptLine (\r
- IN EFI_LEGACY_8259_PROTOCOL *This,\r
- IN EFI_HANDLE PciHandle,\r
- OUT UINT8 *Vector\r
- )\r
-/**\r
-\r
-Routine Description:\r
-\r
- TODO: Add function description\r
-\r
-Arguments:\r
-\r
- This - TODO: add argument description\r
- PciHandle - TODO: add argument description\r
- Vector - TODO: add argument description\r
-\r
-Returns:\r
-\r
- TODO: add return values\r
-\r
-**/\r
-;\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-Interrupt8259EndOfInterrupt (\r
- IN EFI_LEGACY_8259_PROTOCOL *This,\r
- IN EFI_8259_IRQ Irq\r
- )\r
-/**\r
-\r
-Routine Description:\r
-\r
- TODO: Add function description\r
-\r
-Arguments:\r
-\r
- This - TODO: add argument description\r
- Irq - TODO: add argument description\r
-\r
-Returns:\r
-\r
- TODO: add return values\r
-\r
-**/\r
-;\r
-\r
-#endif\r
+++ /dev/null
-#/*++\r
-# \r
-# Copyright (c) 2005, Intel Corporation \r
-# All rights reserved. This program and the accompanying materials \r
-# are licensed and made available under the terms and conditions of the BSD License \r
-# which accompanies this distribution. The full text of the license may be found at \r
-# http://opensource.org/licenses/bsd-license.php \r
-# \r
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
-#\r
-# Module Name:\r
-#\r
-# 8259.inf\r
-#\r
-# Abstract:\r
-#\r
-#--*/\r
-\r
-[Defines]\r
- INF_VERSION = 0x00010005\r
- BASE_NAME = Legacy8259\r
- FILE_GUID = 79CA4208-BBA1-4a9a-8456-E1E66A81484E\r
- MODULE_TYPE = DXE_DRIVER\r
- VERSION_STRING = 1.0\r
- EDK_RELEASE_VERSION = 0x00020000\r
- EFI_SPECIFICATION_VERSION = 0x00020000\r
-\r
- ENTRY_POINT = Install8259\r
-\r
-[Packages]\r
- MdePkg/MdePkg.dec\r
- IntelFrameworkPkg/IntelFrameworkPkg.dec\r
- IntelFrameworkModulePkg/IntelFrameworkModulePkg.dec\r
-\r
-[LibraryClasses]\r
- UefiBootServicesTableLib\r
- DebugLib\r
- UefiDriverEntryPoint\r
- IoLib\r
-\r
-[Sources.common]\r
- 8259.c\r
- 8259.h\r
-\r
-[Protocols]\r
- gEfiLegacy8259ProtocolGuid\r
-\r
-[Depex]\r
- TRUE
\ No newline at end of file
--- /dev/null
+/**@file\r
+ This contains the installation function for the driver.\r
+ \r
+Copyright (c) 2005 - 2008, Intel Corporation \r
+All rights reserved. This program and the accompanying materials \r
+are licensed and made available under the terms and conditions of the BSD License \r
+which accompanies this distribution. The full text of the license may be found at \r
+http://opensource.org/licenses/bsd-license.php \r
+ \r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
+\r
+**/\r
+\r
+#include "8259.h"\r
+\r
+//\r
+// Global for the Legacy 8259 Protocol that is prodiced by this driver\r
+//\r
+EFI_LEGACY_8259_PROTOCOL m8259 = {\r
+ Interrupt8259SetVectorBase,\r
+ Interrupt8259GetMask,\r
+ Interrupt8259SetMask,\r
+ Interrupt8259SetMode,\r
+ Interrupt8259GetVector,\r
+ Interrupt8259EnableIrq,\r
+ Interrupt8259DisableIrq,\r
+ Interrupt8259GetInterruptLine,\r
+ Interrupt8259EndOfInterrupt\r
+};\r
+\r
+//\r
+// Global for the handle that the Legacy 8259 Protocol is installed\r
+//\r
+EFI_HANDLE m8259Handle = NULL;\r
+\r
+UINT8 mMasterBase = 0xff;\r
+UINT8 mSlaveBase = 0xff;\r
+EFI_8259_MODE mMode = Efi8259ProtectedMode;\r
+UINT16 mProtectedModeMask = 0xffff;\r
+UINT16 mLegacyModeMask = 0x06b8;\r
+UINT16 mProtectedModeEdgeLevel = 0x0000;\r
+UINT16 mLegacyModeEdgeLevel = 0x0000;\r
+\r
+//\r
+// Worker Functions\r
+//\r
+VOID\r
+Interrupt8259WriteMask (\r
+ IN UINT16 Mask,\r
+ IN UINT16 EdgeLevel\r
+ )\r
+/**\r
+\r
+ Routine Description:\r
+ Sets the 8250 mask to the valud specified by Mask\r
+\r
+ Arguments:\r
+ Mask - A 16 bit valute that represents the master and slave mask values\r
+\r
+ Returns:\r
+ None\r
+\r
+**/\r
+// TODO: EdgeLevel - add argument and description to function comment\r
+{\r
+ IoWrite8 (LEGACY_8259_MASK_REGISTER_MASTER, (UINT8) Mask);\r
+ IoWrite8 (LEGACY_8259_MASK_REGISTER_SLAVE, (UINT8) (Mask >> 8));\r
+ IoWrite8 (LEGACY_8259_EDGE_LEVEL_TRIGGERED_REGISTER_MASTER, (UINT8) EdgeLevel);\r
+ IoWrite8 (LEGACY_8259_EDGE_LEVEL_TRIGGERED_REGISTER_SLAVE, (UINT8) (EdgeLevel >> 8));\r
+}\r
+\r
+VOID\r
+Interrupt8259ReadMask (\r
+ IN UINT16 *Mask,\r
+ IN UINT16 *EdgeLevel\r
+ )\r
+/**\r
+\r
+ Routine Description:\r
+ Sets the 8250 mask to the valud specified by Mask\r
+\r
+ Arguments:\r
+ Mask - A 16 bit valute that represents the master and slave mask values\r
+\r
+ Returns:\r
+ None\r
+\r
+**/\r
+// TODO: EdgeLevel - add argument and description to function comment\r
+{\r
+ UINT16 MasterValue;\r
+ UINT16 SlaveValue;\r
+\r
+ if (Mask != NULL) {\r
+ MasterValue = IoRead8 (LEGACY_8259_MASK_REGISTER_MASTER);\r
+ SlaveValue = IoRead8 (LEGACY_8259_MASK_REGISTER_SLAVE);\r
+\r
+ *Mask = (UINT16) (MasterValue | (SlaveValue << 8));\r
+ }\r
+\r
+ if (EdgeLevel != NULL) {\r
+ MasterValue = IoRead8 (LEGACY_8259_EDGE_LEVEL_TRIGGERED_REGISTER_MASTER);\r
+ SlaveValue = IoRead8 (LEGACY_8259_EDGE_LEVEL_TRIGGERED_REGISTER_SLAVE);\r
+\r
+ *EdgeLevel = (UINT16) (MasterValue | (SlaveValue << 8));\r
+ }\r
+}\r
+//\r
+// Legacy 8259 Protocol Interface Function\r
+//\r
+EFI_STATUS\r
+EFIAPI\r
+Interrupt8259SetVectorBase (\r
+ IN EFI_LEGACY_8259_PROTOCOL *This,\r
+ IN UINT8 MasterBase,\r
+ IN UINT8 SlaveBase\r
+ )\r
+/**\r
+\r
+ Routine Description:\r
+ Sets the base vector for the 8250 Master and Slave interrupt controllers\r
+\r
+ Arguments:\r
+ This - Protocol instance pointer.\r
+ MasterBase - Base vector of the 8259 Master\r
+ SlaveBase - Base vector of the 8259 Slave\r
+\r
+ Returns:\r
+ EFI_SUCCESS - 8259 programmed\r
+\r
+**/\r
+{\r
+ UINT8 Mask;\r
+\r
+ if (SlaveBase != mSlaveBase) {\r
+ mSlaveBase = SlaveBase;\r
+\r
+ //\r
+ // Initialize Slave interrupt controller.\r
+ //\r
+ Mask = IoRead8 (LEGACY_8259_MASK_REGISTER_SLAVE);\r
+ IoWrite8 (LEGACY_8259_CONTROL_REGISTER_SLAVE, 0x11);\r
+ IoWrite8 (LEGACY_8259_MASK_REGISTER_SLAVE, mSlaveBase);\r
+ IoWrite8 (LEGACY_8259_MASK_REGISTER_SLAVE, 0x02);\r
+ IoWrite8 (LEGACY_8259_MASK_REGISTER_SLAVE, 0x01);\r
+ IoWrite8 (LEGACY_8259_MASK_REGISTER_SLAVE, Mask);\r
+ }\r
+\r
+ if (MasterBase != mMasterBase) {\r
+ mMasterBase = MasterBase;\r
+\r
+ //\r
+ // Initialize Master interrupt controller.\r
+ //\r
+ Mask = IoRead8 (LEGACY_8259_MASK_REGISTER_MASTER);\r
+ IoWrite8 (LEGACY_8259_CONTROL_REGISTER_MASTER, 0x11);\r
+ IoWrite8 (LEGACY_8259_MASK_REGISTER_MASTER, mMasterBase);\r
+ IoWrite8 (LEGACY_8259_MASK_REGISTER_MASTER, 0x04);\r
+ IoWrite8 (LEGACY_8259_MASK_REGISTER_MASTER, 0x01);\r
+ IoWrite8 (LEGACY_8259_MASK_REGISTER_MASTER, Mask);\r
+ }\r
+\r
+ IoWrite8 (LEGACY_8259_CONTROL_REGISTER_SLAVE, 0x20);\r
+ IoWrite8 (LEGACY_8259_CONTROL_REGISTER_MASTER, 0x20);\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+Interrupt8259GetMask (\r
+ IN EFI_LEGACY_8259_PROTOCOL * This,\r
+ OUT UINT16 *LegacyMask, OPTIONAL\r
+ OUT UINT16 *LegacyEdgeLevel, OPTIONAL\r
+ OUT UINT16 *ProtectedMask, OPTIONAL\r
+ OUT UINT16 *ProtectedEdgeLevel OPTIONAL\r
+ )\r
+/**\r
+\r
+ Routine Description:\r
+ Get the 8259 master and slave address that maps IRQ to processor interrupt \r
+ vector number. Get the Context of the device including the state of the\r
+ interrupt mask.\r
+\r
+ Arguments:\r
+ This - Protocol instance pointer.\r
+\r
+ Returns:\r
+ EFI_SUCCESS - 8259 programmed\r
+ EFI_DEVICE_ERROR - Error writting to 8259\r
+\r
+**/\r
+// TODO: LegacyMask - add argument and description to function comment\r
+// TODO: LegacyEdgeLevel - add argument and description to function comment\r
+// TODO: ProtectedMask - add argument and description to function comment\r
+// TODO: ProtectedEdgeLevel - add argument and description to function comment\r
+{\r
+ if (LegacyMask != NULL) {\r
+ *LegacyMask = mLegacyModeMask;\r
+ }\r
+\r
+ if (LegacyEdgeLevel != NULL) {\r
+ *LegacyEdgeLevel = mLegacyModeEdgeLevel;\r
+ }\r
+\r
+ if (ProtectedMask != NULL) {\r
+ *ProtectedMask = mProtectedModeMask;\r
+ }\r
+\r
+ if (ProtectedEdgeLevel != NULL) {\r
+ *ProtectedEdgeLevel = mProtectedModeEdgeLevel;\r
+ }\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+Interrupt8259SetMask (\r
+ IN EFI_LEGACY_8259_PROTOCOL * This,\r
+ IN UINT16 *LegacyMask, OPTIONAL\r
+ IN UINT16 *LegacyEdgeLevel, OPTIONAL\r
+ IN UINT16 *ProtectedMask, OPTIONAL\r
+ IN UINT16 *ProtectedEdgeLevel OPTIONAL\r
+ )\r
+/**\r
+\r
+ Routine Description:\r
+ Set the 8259 interrupt and edge/level masks for legacy and/or protected \r
+ mode operation. This routine does not touch the hardware but only the\r
+ RAM copies of the masks.\r
+\r
+ Arguments:\r
+ This - Protocol instance pointer.\r
+\r
+ Returns:\r
+ EFI_SUCCESS - 8259 masks updated\r
+\r
+**/\r
+// TODO: LegacyMask - add argument and description to function comment\r
+// TODO: LegacyEdgeLevel - add argument and description to function comment\r
+// TODO: ProtectedMask - add argument and description to function comment\r
+// TODO: ProtectedEdgeLevel - add argument and description to function comment\r
+{\r
+ if (LegacyMask != NULL) {\r
+ mLegacyModeMask = *LegacyMask;\r
+ }\r
+\r
+ if (LegacyEdgeLevel != NULL) {\r
+ mLegacyModeEdgeLevel = *LegacyEdgeLevel;\r
+ }\r
+\r
+ if (ProtectedMask != NULL) {\r
+ mProtectedModeMask = *ProtectedMask;\r
+ }\r
+\r
+ if (ProtectedEdgeLevel != NULL) {\r
+ mProtectedModeEdgeLevel = *ProtectedEdgeLevel;\r
+ }\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+Interrupt8259SetMode (\r
+ IN EFI_LEGACY_8259_PROTOCOL * This,\r
+ IN EFI_8259_MODE Mode,\r
+ IN UINT16 *Mask, OPTIONAL\r
+ IN UINT16 *EdgeLevel OPTIONAL\r
+ )\r
+/**\r
+\r
+ Routine Description:\r
+ Set the 8259 master and slave address that maps IRQ to processor interrupt \r
+ vector number. Restore the Context of the device, so that the interrupt\r
+ mask is put back in it's previous mode.\r
+\r
+ Arguments:\r
+ This - Protocol instance pointer.\r
+ Mode - \r
+ Mask -\r
+\r
+ Returns:\r
+ EFI_SUCCESS - 8259 programmed\r
+ EFI_DEVICE_ERROR - Error writting to 8259\r
+\r
+**/\r
+// TODO: EdgeLevel - add argument and description to function comment\r
+// TODO: EFI_INVALID_PARAMETER - add return value to function comment\r
+{\r
+ if (Mode == mMode) {\r
+ return EFI_SUCCESS;\r
+ }\r
+\r
+ if (Mode == Efi8259LegacyMode) {\r
+ //\r
+ // Save the protected mode mask\r
+ //\r
+ Interrupt8259ReadMask (&mProtectedModeMask, &mProtectedModeEdgeLevel);\r
+\r
+ if (Mask != NULL) {\r
+ //\r
+ // Update the Mask for the new mode\r
+ //\r
+ mLegacyModeMask = *Mask;\r
+ }\r
+\r
+ if (EdgeLevel != NULL) {\r
+ //\r
+ // Update the Edge/Level triggered mask for the new mode\r
+ //\r
+ mLegacyModeEdgeLevel = *EdgeLevel;\r
+ }\r
+\r
+ mMode = Mode;\r
+\r
+ //\r
+ // Set 8259 Vector Base\r
+ //\r
+ //\r
+ Interrupt8259SetVectorBase (This, LEGACY_MODE_BASE_VECTOR_MASTER, LEGACY_MODE_BASE_VECTOR_SLAVE);\r
+\r
+ //\r
+ // Enable Interrupts\r
+ //\r
+ Interrupt8259WriteMask (mLegacyModeMask, mLegacyModeEdgeLevel);\r
+\r
+ return EFI_SUCCESS;\r
+ }\r
+\r
+ if (Mode == Efi8259ProtectedMode) {\r
+ //\r
+ // Save the legacy mode mask\r
+ //\r
+ Interrupt8259ReadMask (&mLegacyModeMask, &mLegacyModeEdgeLevel);\r
+ //\r
+ // Always force Timer to be enabled after return from 16-bit code.\r
+ // This always insures that on next entry, timer is counting.\r
+ //\r
+ mLegacyModeMask &= 0xFFFE;\r
+\r
+ if (Mask != NULL) {\r
+ //\r
+ // Update the Mask for the new mode\r
+ //\r
+ mProtectedModeMask = *Mask;\r
+ }\r
+\r
+ if (EdgeLevel != NULL) {\r
+ //\r
+ // Update the Edge/Level triggered mask for the new mode\r
+ //\r
+ mProtectedModeEdgeLevel = *EdgeLevel;\r
+ }\r
+\r
+ mMode = Mode;\r
+\r
+ //\r
+ // Set 8259 Vector Base\r
+ //\r
+ //\r
+ Interrupt8259SetVectorBase (This, PROTECTED_MODE_BASE_VECTOR_MASTER, PROTECTED_MODE_BASE_VECTOR_SLAVE);\r
+\r
+ //\r
+ // Enable Interrupts\r
+ //\r
+ Interrupt8259WriteMask (mProtectedModeMask, mProtectedModeEdgeLevel);\r
+\r
+ return EFI_SUCCESS;\r
+ }\r
+\r
+ return EFI_INVALID_PARAMETER;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+Interrupt8259GetVector (\r
+ IN EFI_LEGACY_8259_PROTOCOL *This,\r
+ IN EFI_8259_IRQ Irq,\r
+ OUT UINT8 *Vector\r
+ )\r
+/**\r
+\r
+ Routine Description:\r
+ Convert from IRQ to processor interrupt vector number.\r
+\r
+ Arguments:\r
+ This - Protocol instance pointer.\r
+ Irq - 8259 IRQ0 - IRQ15\r
+ Vector - Processor vector number that matches Irq\r
+\r
+ Returns:\r
+ EFI_SUCCESS - The Vector matching Irq is returned\r
+ EFI_INVALID_PARAMETER - Irq not valid\r
+\r
+**/\r
+{\r
+ if (Irq < Efi8259Irq0 || Irq > Efi8259Irq15) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ if (Irq <= Efi8259Irq7) {\r
+ *Vector = (UINT8) (mMasterBase + Irq);\r
+ } else {\r
+ *Vector = (UINT8) (mSlaveBase + (Irq - Efi8259Irq8));\r
+ }\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+Interrupt8259EnableIrq (\r
+ IN EFI_LEGACY_8259_PROTOCOL *This,\r
+ IN EFI_8259_IRQ Irq,\r
+ IN BOOLEAN LevelTriggered\r
+ )\r
+/**\r
+\r
+ Routine Description:\r
+ Enable Irq by unmasking interrupt in 8259\r
+\r
+ Arguments:\r
+ This - Protocol instance pointer.\r
+ Irq - 8259 IRQ0 - IRQ15\r
+\r
+ Returns:\r
+ EFI_SUCCESS - Irq enabled on 8259\r
+ EFI_INVALID_PARAMETER - Irq not valid\r
+\r
+**/\r
+// TODO: LevelTriggered - add argument and description to function comment\r
+{\r
+ if (Irq < Efi8259Irq0 || Irq > Efi8259Irq15) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ mProtectedModeMask = (UINT16) (mProtectedModeMask & ~(1 << Irq));\r
+ if (LevelTriggered) {\r
+ mProtectedModeEdgeLevel = (UINT16) (mProtectedModeEdgeLevel | (1 << Irq));\r
+ } else {\r
+ mProtectedModeEdgeLevel = (UINT16) (mProtectedModeEdgeLevel & ~(1 << Irq));\r
+ }\r
+\r
+ Interrupt8259WriteMask (mProtectedModeMask, mProtectedModeEdgeLevel);\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+Interrupt8259DisableIrq (\r
+ IN EFI_LEGACY_8259_PROTOCOL *This,\r
+ IN EFI_8259_IRQ Irq\r
+ )\r
+/**\r
+\r
+ Routine Description:\r
+ Disable Irq by masking interrupt in 8259\r
+\r
+ Arguments:\r
+ This - Protocol instance pointer.\r
+ Irq - 8259 IRQ0 - IRQ15\r
+\r
+ Returns:\r
+ EFI_SUCCESS - Irq disabled on 8259\r
+ EFI_INVALID_PARAMETER - Irq not valid\r
+\r
+**/\r
+{\r
+ if (Irq < Efi8259Irq0 || Irq > Efi8259Irq15) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ mProtectedModeMask = (UINT16) (mProtectedModeMask | (1 << Irq));\r
+ mProtectedModeEdgeLevel = (UINT16) (mProtectedModeEdgeLevel & ~(1 << Irq));\r
+\r
+ Interrupt8259WriteMask (mProtectedModeMask, mProtectedModeEdgeLevel);\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+Interrupt8259GetInterruptLine (\r
+ IN EFI_LEGACY_8259_PROTOCOL *This,\r
+ IN EFI_HANDLE PciHandle,\r
+ OUT UINT8 *Vector\r
+ )\r
+/**\r
+\r
+ Routine Description:\r
+ PciHandle represents a PCI config space of a PCI function. Vector \r
+ represents Interrupt Pin (from PCI config space) and it is the data\r
+ that is programmed into the Interrupt Line (from the PCI config space)\r
+ register.\r
+\r
+ Arguments:\r
+ This - Protocol instance pointer.\r
+ PciHandle - PCI function to return vector for \r
+ Vector - Vector for fucntion that matches \r
+\r
+ Returns:\r
+ EFI_SUCCESS - A valid Vector is returned\r
+ EFI_INVALID_PARAMETER - PciHandle not valid\r
+\r
+**/\r
+{\r
+ return EFI_UNSUPPORTED;\r
+}\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+Interrupt8259EndOfInterrupt (\r
+ IN EFI_LEGACY_8259_PROTOCOL *This,\r
+ IN EFI_8259_IRQ Irq\r
+ )\r
+/**\r
+\r
+ Routine Description:\r
+ Send an EOI to 8259\r
+\r
+ Arguments:\r
+ This - Protocol instance pointer.\r
+ Irq - 8259 IRQ0 - IRQ15\r
+\r
+ Returns:\r
+ EFI_SUCCESS - EOI successfully sent to 8259\r
+ EFI_INVALID_PARAMETER - Irq not valid\r
+\r
+**/\r
+{\r
+ if (Irq < Efi8259Irq0 || Irq > Efi8259Irq15) {\r
+ return EFI_INVALID_PARAMETER;\r
+ }\r
+\r
+ if (Irq >= Efi8259Irq8) {\r
+ IoWrite8 (LEGACY_8259_CONTROL_REGISTER_SLAVE, LEGACY_8259_EOI);\r
+ }\r
+\r
+ IoWrite8 (LEGACY_8259_CONTROL_REGISTER_MASTER, LEGACY_8259_EOI);\r
+\r
+ return EFI_SUCCESS;\r
+}\r
+\r
+//\r
+// Legacy 8259 Driver Entry Point\r
+//\r
+EFI_STATUS\r
+EFIAPI\r
+Install8259 (\r
+ IN EFI_HANDLE ImageHandle,\r
+ IN EFI_SYSTEM_TABLE *SystemTable\r
+ )\r
+/**\r
+\r
+Routine Description:\r
+ \r
+\r
+Arguments:\r
+\r
+ (Standard EFI Image entry - EFI_IMAGE_ENTRY_POINT)\r
+\r
+Returns:\r
+\r
+ EFI_SUCCESS - Legacy 8259 Protocol Installed\r
+\r
+**/\r
+// TODO: ImageHandle - add argument and description to function comment\r
+// TODO: SystemTable - add argument and description to function comment\r
+{\r
+ EFI_STATUS Status;\r
+ EFI_8259_IRQ Irq;\r
+\r
+ //\r
+ // Clear all pending interrupt\r
+ //\r
+ for (Irq = Efi8259Irq0; Irq <= Efi8259Irq15; Irq++) {\r
+ Interrupt8259EndOfInterrupt (&m8259, Irq);\r
+ }\r
+\r
+ //\r
+ // Set the 8259 Master base to 0x68 and the 8259 Slave base to 0x70\r
+ //\r
+ Status = Interrupt8259SetVectorBase (&m8259, PROTECTED_MODE_BASE_VECTOR_MASTER, PROTECTED_MODE_BASE_VECTOR_SLAVE);\r
+\r
+ //\r
+ // Set all 8259 interrupts to edge triggered and disabled\r
+ //\r
+ Interrupt8259WriteMask (mProtectedModeMask, mProtectedModeEdgeLevel);\r
+\r
+ //\r
+ // Install 8259 Protocol onto a new handle\r
+ //\r
+ Status = gBS->InstallProtocolInterface (\r
+ &m8259Handle,\r
+ &gEfiLegacy8259ProtocolGuid,\r
+ EFI_NATIVE_INTERFACE,\r
+ &m8259\r
+ );\r
+ return Status;\r
+}\r
+\r
--- /dev/null
+/**\r
+\r
+Copyright (c) 2005, Intel Corporation \r
+All rights reserved. This program and the accompanying materials \r
+are licensed and made available under the terms and conditions of the BSD License \r
+which accompanies this distribution. The full text of the license may be found at \r
+http://opensource.org/licenses/bsd-license.php \r
+ \r
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
+\r
+Module Name:\r
+ 8259.h\r
+\r
+Abstract:\r
+\r
+ Driver implementing the Tiano Legacy 8259 Protocol\r
+\r
+**/\r
+\r
+#ifndef _8259_H__\r
+#define _8259_H__\r
+\r
+#include <FrameworkDxe.h>\r
+\r
+#include <Protocol/Legacy8259.h>\r
+\r
+#include <Library/UefiBootServicesTableLib.h>\r
+#include <Library/DebugLib.h>\r
+#include <Library/IoLib.h>\r
+\r
+//\r
+// 8259 Hardware definitions\r
+//\r
+#define LEGACY_MODE_BASE_VECTOR_MASTER 0x08\r
+#define LEGACY_MODE_BASE_VECTOR_SLAVE 0x70\r
+\r
+#define PROTECTED_MODE_BASE_VECTOR_MASTER 0x68\r
+#define PROTECTED_MODE_BASE_VECTOR_SLAVE 0x70\r
+\r
+#define LEGACY_8259_CONTROL_REGISTER_MASTER 0x20\r
+#define LEGACY_8259_MASK_REGISTER_MASTER 0x21\r
+#define LEGACY_8259_CONTROL_REGISTER_SLAVE 0xA0\r
+#define LEGACY_8259_MASK_REGISTER_SLAVE 0xA1\r
+#define LEGACY_8259_EDGE_LEVEL_TRIGGERED_REGISTER_MASTER 0x4D0\r
+#define LEGACY_8259_EDGE_LEVEL_TRIGGERED_REGISTER_SLAVE 0x4D1\r
+\r
+#define LEGACY_8259_EOI 0x20\r
+\r
+//\r
+// Protocol Function Prototypes\r
+//\r
+EFI_STATUS\r
+EFIAPI\r
+Interrupt8259SetVectorBase (\r
+ IN EFI_LEGACY_8259_PROTOCOL *This,\r
+ IN UINT8 MasterBase,\r
+ IN UINT8 SlaveBase\r
+ )\r
+/**\r
+\r
+Routine Description:\r
+\r
+ TODO: Add function description\r
+\r
+Arguments:\r
+\r
+ This - TODO: add argument description\r
+ MasterBase - TODO: add argument description\r
+ SlaveBase - TODO: add argument description\r
+\r
+Returns:\r
+\r
+ TODO: add return values\r
+\r
+**/\r
+;\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+Interrupt8259GetMask (\r
+ IN EFI_LEGACY_8259_PROTOCOL * This,\r
+ OUT UINT16 *LegacyMask, OPTIONAL\r
+ OUT UINT16 *LegacyEdgeLevel, OPTIONAL\r
+ OUT UINT16 *ProtectedMask, OPTIONAL\r
+ OUT UINT16 *ProtectedEdgeLevel OPTIONAL\r
+ )\r
+/**\r
+\r
+Routine Description:\r
+\r
+ TODO: Add function description\r
+\r
+Arguments:\r
+\r
+ This - TODO: add argument description\r
+ LegacyMask - TODO: add argument description\r
+ LegacyEdgeLevel - TODO: add argument description\r
+ ProtectedMask - TODO: add argument description\r
+ ProtectedEdgeLevel - TODO: add argument description\r
+\r
+Returns:\r
+\r
+ TODO: add return values\r
+\r
+**/\r
+;\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+Interrupt8259SetMask (\r
+ IN EFI_LEGACY_8259_PROTOCOL * This,\r
+ IN UINT16 *LegacyMask, OPTIONAL\r
+ IN UINT16 *LegacyEdgeLevel, OPTIONAL\r
+ IN UINT16 *ProtectedMask, OPTIONAL\r
+ IN UINT16 *ProtectedEdgeLevel OPTIONAL\r
+ )\r
+/**\r
+\r
+Routine Description:\r
+\r
+ TODO: Add function description\r
+\r
+Arguments:\r
+\r
+ This - TODO: add argument description\r
+ LegacyMask - TODO: add argument description\r
+ LegacyEdgeLevel - TODO: add argument description\r
+ ProtectedMask - TODO: add argument description\r
+ ProtectedEdgeLevel - TODO: add argument description\r
+\r
+Returns:\r
+\r
+ TODO: add return values\r
+\r
+**/\r
+;\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+Interrupt8259SetMode (\r
+ IN EFI_LEGACY_8259_PROTOCOL * This,\r
+ IN EFI_8259_MODE Mode,\r
+ IN UINT16 *Mask, OPTIONAL\r
+ IN UINT16 *EdgeLevel OPTIONAL\r
+ )\r
+/**\r
+\r
+Routine Description:\r
+\r
+ TODO: Add function description\r
+\r
+Arguments:\r
+\r
+ This - TODO: add argument description\r
+ Mode - TODO: add argument description\r
+ Mask - TODO: add argument description\r
+ EdgeLevel - TODO: add argument description\r
+\r
+Returns:\r
+\r
+ TODO: add return values\r
+\r
+**/\r
+;\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+Interrupt8259GetVector (\r
+ IN EFI_LEGACY_8259_PROTOCOL *This,\r
+ IN EFI_8259_IRQ Irq,\r
+ OUT UINT8 *Vector\r
+ )\r
+/**\r
+\r
+Routine Description:\r
+\r
+ TODO: Add function description\r
+\r
+Arguments:\r
+\r
+ This - TODO: add argument description\r
+ Irq - TODO: add argument description\r
+ Vector - TODO: add argument description\r
+\r
+Returns:\r
+\r
+ TODO: add return values\r
+\r
+**/\r
+;\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+Interrupt8259EnableIrq (\r
+ IN EFI_LEGACY_8259_PROTOCOL *This,\r
+ IN EFI_8259_IRQ Irq,\r
+ IN BOOLEAN LevelTriggered\r
+ )\r
+/**\r
+\r
+Routine Description:\r
+\r
+ TODO: Add function description\r
+\r
+Arguments:\r
+\r
+ This - TODO: add argument description\r
+ Irq - TODO: add argument description\r
+ LevelTriggered - TODO: add argument description\r
+\r
+Returns:\r
+\r
+ TODO: add return values\r
+\r
+**/\r
+;\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+Interrupt8259DisableIrq (\r
+ IN EFI_LEGACY_8259_PROTOCOL *This,\r
+ IN EFI_8259_IRQ Irq\r
+ )\r
+/**\r
+\r
+Routine Description:\r
+\r
+ TODO: Add function description\r
+\r
+Arguments:\r
+\r
+ This - TODO: add argument description\r
+ Irq - TODO: add argument description\r
+\r
+Returns:\r
+\r
+ TODO: add return values\r
+\r
+**/\r
+;\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+Interrupt8259GetInterruptLine (\r
+ IN EFI_LEGACY_8259_PROTOCOL *This,\r
+ IN EFI_HANDLE PciHandle,\r
+ OUT UINT8 *Vector\r
+ )\r
+/**\r
+\r
+Routine Description:\r
+\r
+ TODO: Add function description\r
+\r
+Arguments:\r
+\r
+ This - TODO: add argument description\r
+ PciHandle - TODO: add argument description\r
+ Vector - TODO: add argument description\r
+\r
+Returns:\r
+\r
+ TODO: add return values\r
+\r
+**/\r
+;\r
+\r
+EFI_STATUS\r
+EFIAPI\r
+Interrupt8259EndOfInterrupt (\r
+ IN EFI_LEGACY_8259_PROTOCOL *This,\r
+ IN EFI_8259_IRQ Irq\r
+ )\r
+/**\r
+\r
+Routine Description:\r
+\r
+ TODO: Add function description\r
+\r
+Arguments:\r
+\r
+ This - TODO: add argument description\r
+ Irq - TODO: add argument description\r
+\r
+Returns:\r
+\r
+ TODO: add return values\r
+\r
+**/\r
+;\r
+\r
+#endif\r
--- /dev/null
+#/*++\r
+# \r
+# Copyright (c) 2005, Intel Corporation \r
+# All rights reserved. This program and the accompanying materials \r
+# are licensed and made available under the terms and conditions of the BSD License \r
+# which accompanies this distribution. The full text of the license may be found at \r
+# http://opensource.org/licenses/bsd-license.php \r
+# \r
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
+#\r
+# Module Name:\r
+#\r
+# 8259.inf\r
+#\r
+# Abstract:\r
+#\r
+#--*/\r
+\r
+[Defines]\r
+ INF_VERSION = 0x00010005\r
+ BASE_NAME = Legacy8259\r
+ FILE_GUID = 79CA4208-BBA1-4a9a-8456-E1E66A81484E\r
+ MODULE_TYPE = DXE_DRIVER\r
+ VERSION_STRING = 1.0\r
+ EDK_RELEASE_VERSION = 0x00020000\r
+ EFI_SPECIFICATION_VERSION = 0x00020000\r
+\r
+ ENTRY_POINT = Install8259\r
+\r
+[Packages]\r
+ MdePkg/MdePkg.dec\r
+ IntelFrameworkPkg/IntelFrameworkPkg.dec\r
+ IntelFrameworkModulePkg/IntelFrameworkModulePkg.dec\r
+\r
+[LibraryClasses]\r
+ UefiBootServicesTableLib\r
+ DebugLib\r
+ UefiDriverEntryPoint\r
+ IoLib\r
+\r
+[Sources.common]\r
+ 8259.c\r
+ 8259.h\r
+\r
+[Protocols]\r
+ gEfiLegacy8259ProtocolGuid\r
+\r
+[Depex]\r
+ TRUE
\ No newline at end of file
projects / mirror_edk2.git / commitdiff