diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/parisc/gsc.h |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/parisc/gsc.h')
-rw-r--r-- | drivers/parisc/gsc.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/parisc/gsc.h b/drivers/parisc/gsc.h new file mode 100644 index 000000000000..a3dc456709d7 --- /dev/null +++ b/drivers/parisc/gsc.h @@ -0,0 +1,47 @@ +/* + * 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); |