diff options
Diffstat (limited to 'PcAtChipsetPkg/8259InterruptControllerDxe')
| -rw-r--r-- | PcAtChipsetPkg/8259InterruptControllerDxe/8259.c | 8 | ||||
| -rw-r--r-- | PcAtChipsetPkg/8259InterruptControllerDxe/8259.h | 100 |
2 files changed, 104 insertions, 4 deletions
diff --git a/PcAtChipsetPkg/8259InterruptControllerDxe/8259.c b/PcAtChipsetPkg/8259InterruptControllerDxe/8259.c index 7b9067f89a..3defe0ed08 100644 --- a/PcAtChipsetPkg/8259InterruptControllerDxe/8259.c +++ b/PcAtChipsetPkg/8259InterruptControllerDxe/8259.c @@ -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;
}
diff --git a/PcAtChipsetPkg/8259InterruptControllerDxe/8259.h b/PcAtChipsetPkg/8259InterruptControllerDxe/8259.h index fff068a0df..0d4c1e8223 100644 --- a/PcAtChipsetPkg/8259InterruptControllerDxe/8259.h +++ b/PcAtChipsetPkg/8259InterruptControllerDxe/8259.h @@ -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 (
|