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Diffstat (limited to 'private/ntos/nthals/halsgi/mips/sxsysint.c')
| -rw-r--r-- | private/ntos/nthals/halsgi/mips/sxsysint.c | 294 |
1 files changed, 294 insertions, 0 deletions
diff --git a/private/ntos/nthals/halsgi/mips/sxsysint.c b/private/ntos/nthals/halsgi/mips/sxsysint.c new file mode 100644 index 000000000..bc336ae7b --- /dev/null +++ b/private/ntos/nthals/halsgi/mips/sxsysint.c @@ -0,0 +1,294 @@ +/*++ + +Copyright (c) 1991 Microsoft Corporation +Copyright (c) 1992 Silicon Graphics, Inc. + +Module Name: + + s3sysint.c + +Abstract: + + This module implements the HAL procedures required to maintain + system interrupt processing for a SGI Indigo system. + +Author: + + David N. Cutler (davec) 6-May-1991 + Kevin Meier (o-kevinm) 20-Jan-1992 + +Environment: + + Kernel mode + +Revision History: + +--*/ + +#include "halp.h" + +VOID +HalDisableSystemInterrupt ( + IN ULONG Vector, + IN KIRQL Irql + ) + +/*++ + +Routine Description: + + This routine disables the specified system interrupt. + + N.B. This routine assumes that the caller has provided any required + synchronization to disable a system interrupt. + +Arguments: + + Vector - Supplies the vector of the system interrupt that is disabled. + + Irql - Supplies the IRQL of the interrupting source. + +Return Value: + + None. + +--*/ + +{ + KIRQL OldIrql; + + // + // Raise IRQL to the highest level. + // + + KeRaiseIrql(HIGH_LEVEL, &OldIrql); + + // + // This is a temp solution until these vectors can be obtained + // via the configuration manager. For now, these vectors are + // hardcoded in "sgidef.h". + // + + switch( (UCHAR)Vector ){ + + // + // LOCAL0 vectors. + // + + case SGI_VECTOR_GIO0FIFOFULL: // (0 + SGI_LOCAL0_VECTORS) + case SGI_VECTOR_IDEDMA: // (1 + SGI_LOCAL0_VECTORS) + case SGI_VECTOR_SCSI: // (2 + SGI_LOCAL0_VECTORS) + case SGI_VECTOR_ETHERNET: // (3 + SGI_LOCAL0_VECTORS) + case SGI_VECTOR_GRAPHICSDMA: // (4 + SGI_LOCAL0_VECTORS) + case SGI_VECTOR_SGIDUART: // (5 + SGI_LOCAL0_VECTORS) + case SGI_VECTOR_GIO1GE: // (6 + SGI_LOCAL0_VECTORS) + case SGI_VECTOR_VME0: // (7 + SGI_LOCAL0_VECTORS) + DISABLE_LOCAL0_IRQ( 1 << ((UCHAR)Vector - SGI_LOCAL0_VECTORS) ); + break; + + // + // LOCAL1 vectors. + // + + case SGI_VECTOR_VME1: // (3 + SGI_LOCAL1_VECTORS) + case SGI_VECTOR_DSP: // (4 + SGI_LOCAL1_VECTORS) + case SGI_VECTOR_ACFAIL: // (5 + SGI_LOCAL1_VECTORS) + case SGI_VECTOR_VIDEOOPTION: // (6 + SGI_LOCAL1_VECTORS) + case SGI_VECTOR_GIO2VERTRET: // (7 + SGI_LOCAL1_VECTORS) + DISABLE_LOCAL1_IRQ( 1 << ((UCHAR)Vector - SGI_LOCAL1_VECTORS) ); + break; + + // + // Gets here when the disconnect interrupt routine is called + // for the second level dispatch routine (never) + // + + case SGI_VECTOR_LOCAL0: + case SGI_VECTOR_LOCAL1: + break; + + default: + DbgPrint("\nInvalid Vector (0x%x) passed.\n", (UCHAR)Vector); + DbgBreakPoint(); + + }// END SWITCH + + // + // Lower IRQL to the previous level. + // + + KeLowerIrql(OldIrql); +} + + +BOOLEAN +HalEnableSystemInterrupt ( + IN ULONG Vector, + IN KIRQL Irql, + IN KINTERRUPT_MODE InterruptMode + ) + +/*++ + +Routine Description: + + This routine enables the specified system interrupt. + + N.B. This routine assumes that the caller has provided any required + synchronization to enable a system interrupt. + +Arguments: + + Vector - Supplies the vector of the system interrupt that is enabled. + + Irql - Supplies the IRQL of the interrupting source. + + InterruptMode - Supplies the mode of the interrupt; LevelSensitive or + Latched. + +Return Value: + + TRUE if the system interrupt was enabled + +--*/ + +{ + + KIRQL OldIrql; + + // + // Raise IRQL to the highest level. + // + + KeRaiseIrql(HIGH_LEVEL, &OldIrql); + + // + // This is a temp solution until these vectors can be obtained + // via the configuration manager. For now, these vectors are + // hardcoded in "sgidef.h". + // + + switch( (UCHAR)Vector ){ + + // + // LOCAL0 vectors. + // + + case SGI_VECTOR_GIO0FIFOFULL: // (0 + SGI_LOCAL0_VECTORS) + case SGI_VECTOR_IDEDMA: // (1 + SGI_LOCAL0_VECTORS) + case SGI_VECTOR_SCSI: // (2 + SGI_LOCAL0_VECTORS) + case SGI_VECTOR_ETHERNET: // (3 + SGI_LOCAL0_VECTORS) + case SGI_VECTOR_GRAPHICSDMA: // (4 + SGI_LOCAL0_VECTORS) + case SGI_VECTOR_SGIDUART: // (5 + SGI_LOCAL0_VECTORS) + case SGI_VECTOR_GIO1GE: // (6 + SGI_LOCAL0_VECTORS) + case SGI_VECTOR_VME0: // (7 + SGI_LOCAL0_VECTORS) + ENABLE_LOCAL0_IRQ( 1 << ((UCHAR)Vector - SGI_LOCAL0_VECTORS) ); + break; + + // + // LOCAL1 vectors. + // + + case SGI_VECTOR_VME1: // (3 + SGI_LOCAL1_VECTORS) + case SGI_VECTOR_DSP: // (4 + SGI_LOCAL1_VECTORS) + case SGI_VECTOR_ACFAIL: // (5 + SGI_LOCAL1_VECTORS) + case SGI_VECTOR_VIDEOOPTION: // (6 + SGI_LOCAL1_VECTORS) + case SGI_VECTOR_GIO2VERTRET: // (7 + SGI_LOCAL1_VECTORS) + ENABLE_LOCAL1_IRQ( 1 << ((UCHAR)Vector - SGI_LOCAL1_VECTORS) ); + break; + + // + // Gets here when the connect interrupt routine is called + // for the second level dispatch routine (init only) + // + + case SGI_VECTOR_LOCAL0: + case SGI_VECTOR_LOCAL1: + break; + + default: + DbgPrint("\nHal: Invalid Vector (0x%x) passed.\n",(UCHAR)Vector); + DbgBreakPoint(); + + }// END SWITCH + + // + // Lower IRQL to the previous level. + // + + KeLowerIrql(OldIrql); + return TRUE; +} + +ULONG +HalGetInterruptVector( + IN INTERFACE_TYPE InterfaceType, + IN ULONG BusNumber, + IN ULONG BusInterruptLevel, + IN ULONG BusInterruptVector, + OUT PKIRQL Irql, + OUT PKAFFINITY Affinity + ) + +/*++ + +Routine Description: + + This function returns the system interrupt vector and IRQL level + corresponding to the specified bus interrupt level and/or vector. The + system interrupt vector and IRQL are suitable for use in a subsequent call + to KeInitializeInterrupt. + +Arguments: + + InterfaceType - Supplies the type of bus which the vector is for. + + BusNumber - Supplies the bus number for the device. + + BusInterruptLevel - Supplies the bus specific interrupt level. + + BusInterruptVector - Supplies the bus specific interrupt vector. + + Irql - Returns the system request priority. + + Affinity - Returns the affinity for the requested vector + +Return Value: + + Returns the system interrupt vector corresponding to the specified device. + +--*/ + +{ + // + // Just return the passed parameters for now. + // + + *Irql = (UCHAR)BusInterruptLevel; + *Affinity = 1; + return( BusInterruptVector ); + +} +VOID +HalRequestIpi( + IN ULONG Mask + ) + +/*++ + +Routine Description: + + Requests an interprocessor interrupt + +Arguments: + + Mask - Supplies a mask of the processors to interrupt + +Return Value: + + None. + +--*/ + +{ +} |