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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/parisc/gsc.h
downloadlinux-linaro-stable-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-rc2v2.6.12-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.h47
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);