sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

RefRefine soma code to make code run safely.

Browse Source 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10885 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
ydong10
2010-09-17 10:42:10 +00:00
parent 36b4e01a25
commit 24115e4492
14 changed files with 507 additions and 170 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
PcAtChipsetPkg/8259InterruptControllerDxe/8259.c
View File

@@ -17,7 +17,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
//
// Global for the Legacy 8259 Protocol that is produced by this driver
//
EFI_LEGACY_8259_PROTOCOL m8259 = {
EFI_LEGACY_8259_PROTOCOL mInterrupt8259 = {
Interrupt8259SetVectorBase,
Interrupt8259GetMask,
Interrupt8259SetMask,
@@ -592,13 +592,13 @@ Install8259 (
// Clear all pending interrupt
//
for (Irq = Efi8259Irq0; Irq <= Efi8259Irq15; Irq++) {
Interrupt8259EndOfInterrupt (&m8259, Irq);
Interrupt8259EndOfInterrupt (&mInterrupt8259, Irq);
}
//
// Set the 8259 Master base to 0x68 and the 8259 Slave base to 0x70
//
Status = Interrupt8259SetVectorBase (&m8259, PROTECTED_MODE_BASE_VECTOR_MASTER, PROTECTED_MODE_BASE_VECTOR_SLAVE);
Status = Interrupt8259SetVectorBase (&mInterrupt8259, PROTECTED_MODE_BASE_VECTOR_MASTER, PROTECTED_MODE_BASE_VECTOR_SLAVE);
//
// Set all 8259 interrupts to edge triggered and disabled
@@ -612,7 +612,7 @@ Install8259 (
&m8259Handle,
&gEfiLegacy8259ProtocolGuid,
EFI_NATIVE_INTERFACE,
&m8259
&mInterrupt8259
);
return Status;
}

100
PcAtChipsetPkg/8259InterruptControllerDxe/8259.h
View File

@@ -47,7 +47,17 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
// Protocol Function Prototypes
/**
Sets the base address for the 8259 master and slave PICs.
@param[in] This Indicates the EFI_LEGACY_8259_PROTOCOL instance.
@param[in] MasterBase Interrupt vectors for IRQ0-IRQ7.
@param[in] SlaveBase Interrupt vectors for IRQ8-IRQ15.
@retval EFI_SUCCESS The 8259 PIC was programmed successfully.
@retval EFI_DEVICE_ERROR There was an error while writing to the 8259 PIC.
**/
EFI_STATUS
EFIAPI
Interrupt8259SetVectorBase (
@@ -56,6 +66,19 @@ Interrupt8259SetVectorBase (
IN UINT8 SlaveBase
);
/**
Gets the current 16-bit real mode and 32-bit protected-mode IRQ masks.
@param[in] This Indicates the EFI_LEGACY_8259_PROTOCOL instance.
@param[out] LegacyMask 16-bit mode interrupt mask for IRQ0-IRQ15.
@param[out] LegacyEdgeLevel 16-bit mode edge/level mask for IRQ-IRQ15.
@param[out] ProtectedMask 32-bit mode interrupt mask for IRQ0-IRQ15.
@param[out] ProtectedEdgeLevel 32-bit mode edge/level mask for IRQ0-IRQ15.
@retval EFI_SUCCESS The 8259 PIC was programmed successfully.
@retval EFI_DEVICE_ERROR There was an error while reading the 8259 PIC.
**/
EFI_STATUS
EFIAPI
Interrupt8259GetMask (
@@ -66,6 +89,19 @@ Interrupt8259GetMask (
OUT UINT16 *ProtectedEdgeLevel OPTIONAL
);
/**
Sets the current 16-bit real mode and 32-bit protected-mode IRQ masks.
@param[in] This Indicates the EFI_LEGACY_8259_PROTOCOL instance.
@param[in] LegacyMask 16-bit mode interrupt mask for IRQ0-IRQ15.
@param[in] LegacyEdgeLevel 16-bit mode edge/level mask for IRQ-IRQ15.
@param[in] ProtectedMask 32-bit mode interrupt mask for IRQ0-IRQ15.
@param[in] ProtectedEdgeLevel 32-bit mode edge/level mask for IRQ0-IRQ15.
@retval EFI_SUCCESS The 8259 PIC was programmed successfully.
@retval EFI_DEVICE_ERROR There was an error while writing the 8259 PIC.
**/
EFI_STATUS
EFIAPI
Interrupt8259SetMask (
@@ -76,6 +112,18 @@ Interrupt8259SetMask (
IN UINT16 *ProtectedEdgeLevel OPTIONAL
);
/**
Sets the mode of the PICs.
@param[in] This Indicates the EFI_LEGACY_8259_PROTOCOL instance.
@param[in] Mode 16-bit real or 32-bit protected mode.
@param[in] Mask The value with which to set the interrupt mask.
@param[in] EdgeLevel The value with which to set the edge/level mask.
@retval EFI_SUCCESS The mode was set successfully.
@retval EFI_INVALID_PARAMETER The mode was not set.
**/
EFI_STATUS
EFIAPI
Interrupt8259SetMode (
@@ -85,6 +133,17 @@ Interrupt8259SetMode (
IN UINT16 *EdgeLevel OPTIONAL
);
/**
Translates the IRQ into a vector.
@param[in] This Indicates the EFI_LEGACY_8259_PROTOCOL instance.
@param[in] Irq IRQ0-IRQ15.
@param[out] Vector The vector that is assigned to the IRQ.
@retval EFI_SUCCESS The Vector that matches Irq was returned.
@retval EFI_INVALID_PARAMETER Irq is not valid.
**/
EFI_STATUS
EFIAPI
Interrupt8259GetVector (
@@ -93,6 +152,17 @@ Interrupt8259GetVector (
OUT UINT8 *Vector
);
/**
Enables the specified IRQ.
@param[in] This Indicates the EFI_LEGACY_8259_PROTOCOL instance.
@param[in] Irq IRQ0-IRQ15.
@param[in] LevelTriggered 0 = Edge triggered; 1 = Level triggered.
@retval EFI_SUCCESS The Irq was enabled on the 8259 PIC.
@retval EFI_INVALID_PARAMETER The Irq is not valid.
**/
EFI_STATUS
EFIAPI
Interrupt8259EnableIrq (
@@ -101,6 +171,16 @@ Interrupt8259EnableIrq (
IN BOOLEAN LevelTriggered
);
/**
Disables the specified IRQ.
@param[in] This Indicates the EFI_LEGACY_8259_PROTOCOL instance.
@param[in] Irq IRQ0-IRQ15.
@retval EFI_SUCCESS The Irq was disabled on the 8259 PIC.
@retval EFI_INVALID_PARAMETER The Irq is not valid.
**/
EFI_STATUS
EFIAPI
Interrupt8259DisableIrq (
@@ -108,6 +188,16 @@ Interrupt8259DisableIrq (
IN EFI_8259_IRQ Irq
);
/**
Reads the PCI configuration space to get the interrupt number that is assigned to the card.
@param[in] This Indicates the EFI_LEGACY_8259_PROTOCOL instance.
@param[in] PciHandle PCI function for which to return the vector.
@param[out] Vector IRQ number that corresponds to the interrupt line.
@retval EFI_SUCCESS The interrupt line value was read successfully.
**/
EFI_STATUS
EFIAPI
Interrupt8259GetInterruptLine (
@@ -116,6 +206,16 @@ Interrupt8259GetInterruptLine (
OUT UINT8 *Vector
);
/**
Issues the End of Interrupt (EOI) commands to PICs.
@param[in] This Indicates the EFI_LEGACY_8259_PROTOCOL instance.
@param[in] Irq The interrupt for which to issue the EOI command.
@retval EFI_SUCCESS The EOI command was issued.
@retval EFI_INVALID_PARAMETER The Irq is not valid.
**/
EFI_STATUS
EFIAPI
Interrupt8259EndOfInterrupt (