| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * drivers/parisc/gsc.h |
| 3 | * Declarations for functions in gsc.c |
| 4 | * Copyright (c) 2000-2002 Helge Deller, Matthew Wilcox |
| 5 | * |
| 6 | * Distributed under the terms of the GPL, version 2 |
| 7 | */ |
| 8 | |
| 9 | #include <linux/interrupt.h> |
| 10 | #include <asm/hardware.h> |
| 11 | #include <asm/parisc-device.h> |
| 12 | |
| 13 | #define OFFSET_IRR 0x0000 /* Interrupt request register */ |
| 14 | #define OFFSET_IMR 0x0004 /* Interrupt mask register */ |
| 15 | #define OFFSET_IPR 0x0008 /* Interrupt pending register */ |
| 16 | #define OFFSET_ICR 0x000C /* Interrupt control register */ |
| 17 | #define OFFSET_IAR 0x0010 /* Interrupt address register */ |
| 18 | |
| 19 | /* PA I/O Architected devices support at least 5 bits in the EIM register. */ |
| 20 | #define GSC_EIM_WIDTH 5 |
| 21 | |
| 22 | struct gsc_irq { |
| 23 | unsigned long txn_addr; /* IRQ "target" */ |
| 24 | int txn_data; /* HW "IRQ" */ |
| 25 | int irq; /* virtual IRQ */ |
| 26 | }; |
| 27 | |
| 28 | struct gsc_asic { |
| 29 | struct parisc_device *gsc; |
| 30 | unsigned long hpa; |
| 31 | char *name; |
| 32 | int version; |
| 33 | int type; |
| 34 | int eim; |
| 35 | int global_irq[32]; |
| 36 | }; |
| 37 | |
| 38 | int gsc_common_setup(struct parisc_device *parent, struct gsc_asic *gsc_asic); |
| 39 | int gsc_alloc_irq(struct gsc_irq *dev); /* dev needs an irq */ |
| 40 | int gsc_claim_irq(struct gsc_irq *dev, int irq); /* dev needs this irq */ |
| 41 | int gsc_assign_irq(struct hw_interrupt_type *type, void *data); |
| 42 | int gsc_find_local_irq(unsigned int irq, int *global_irq, int limit); |
| 43 | void gsc_fixup_irqs(struct parisc_device *parent, void *ctrl, |
| 44 | void (*choose)(struct parisc_device *child, void *ctrl)); |
| 45 | void gsc_asic_assign_irq(struct gsc_asic *asic, int local_irq, int *irqp); |
| 46 | |
| 47 | irqreturn_t gsc_asic_intr(int irq, void *dev, struct pt_regs *regs); |