You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
48 lines
1.5 KiB
48 lines
1.5 KiB
20 years ago
|
/*
|
||
|
|
* 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 hw_interrupt_type *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, struct pt_regs *regs);
|