Commit | Line | Data |
---|---|---|
c88a15c6 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
1da177e4 LT |
2 | /* |
3 | * drivers/parisc/gsc.h | |
4 | * Declarations for functions in gsc.c | |
5 | * Copyright (c) 2000-2002 Helge Deller, Matthew Wilcox | |
1da177e4 LT |
6 | */ |
7 | ||
8 | #include <linux/interrupt.h> | |
9 | #include <asm/hardware.h> | |
10 | #include <asm/parisc-device.h> | |
11 | ||
12 | #define OFFSET_IRR 0x0000 /* Interrupt request register */ | |
13 | #define OFFSET_IMR 0x0004 /* Interrupt mask register */ | |
14 | #define OFFSET_IPR 0x0008 /* Interrupt pending register */ | |
15 | #define OFFSET_ICR 0x000C /* Interrupt control register */ | |
16 | #define OFFSET_IAR 0x0010 /* Interrupt address register */ | |
17 | ||
18 | /* PA I/O Architected devices support at least 5 bits in the EIM register. */ | |
19 | #define GSC_EIM_WIDTH 5 | |
20 | ||
21 | struct gsc_irq { | |
22 | unsigned long txn_addr; /* IRQ "target" */ | |
23 | int txn_data; /* HW "IRQ" */ | |
24 | int irq; /* virtual IRQ */ | |
25 | }; | |
26 | ||
27 | struct gsc_asic { | |
28 | struct parisc_device *gsc; | |
29 | unsigned long hpa; | |
30 | char *name; | |
31 | int version; | |
32 | int type; | |
33 | int eim; | |
939fc856 | 34 | struct gsc_irq gsc_irq; |
1da177e4 LT |
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 */ | |
dfe07565 | 41 | int gsc_assign_irq(struct irq_chip *type, void *data); |
1da177e4 LT |
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 | ||
7d12e780 | 47 | irqreturn_t gsc_asic_intr(int irq, void *dev); |