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- /*
- * drivers/parisc/gsc.h
- * Declarations for functions in gsc.c
- * Copyright (c) 2000-2002 Helge Deller, Matthew Wilcox
- *
- * Distributed under the terms of the GPL, version 2
- */
- #include <linux/interrupt.h>
- #include <asm/hardware.h>
- #include <asm/parisc-device.h>
- #define OFFSET_IRR 0x0000 /* Interrupt request register */
- #define OFFSET_IMR 0x0004 /* Interrupt mask register */
- #define OFFSET_IPR 0x0008 /* Interrupt pending register */
- #define OFFSET_ICR 0x000C /* Interrupt control register */
- #define OFFSET_IAR 0x0010 /* Interrupt address register */
- /* PA I/O Architected devices support at least 5 bits in the EIM register. */
- #define GSC_EIM_WIDTH 5
- struct gsc_irq {
- unsigned long txn_addr; /* IRQ "target" */
- int txn_data; /* HW "IRQ" */
- int irq; /* virtual IRQ */
- };
- struct gsc_asic {
- struct parisc_device *gsc;
- unsigned long hpa;
- char *name;
- int version;
- int type;
- int eim;
- int global_irq[32];
- };
- int gsc_common_setup(struct parisc_device *parent, struct gsc_asic *gsc_asic);
- int gsc_alloc_irq(struct gsc_irq *dev); /* dev needs an irq */
- int gsc_claim_irq(struct gsc_irq *dev, int irq); /* dev needs this irq */
- int gsc_assign_irq(struct irq_chip *type, void *data);
- int gsc_find_local_irq(unsigned int irq, int *global_irq, int limit);
- void gsc_fixup_irqs(struct parisc_device *parent, void *ctrl,
- void (*choose)(struct parisc_device *child, void *ctrl));
- void gsc_asic_assign_irq(struct gsc_asic *asic, int local_irq, int *irqp);
- irqreturn_t gsc_asic_intr(int irq, void *dev);
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