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authorPaul Mundt <lethal@linux-sh.org>2008-10-01 16:13:54 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-10-01 16:13:54 +0900
commitbbfbd8b151fe35c9a1180a7f5254c5d6b8387cc0 (patch)
treee39f364221492d64c7f8fd80c1ceb2065350c4d7 /include/linux
parent7ff731aeba1cdac473c818a9884eb94ddad18e7f (diff)
sh: Move the shared INTC code out to drivers/sh/
The INTC code will be re-used across different architectures, so move this out to drivers/sh/ and include/linux/sh_intc.h respectively. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/sh_intc.h91
1 files changed, 91 insertions, 0 deletions
diff --git a/include/linux/sh_intc.h b/include/linux/sh_intc.h
new file mode 100644
index 00000000000..68e212ff9dd
--- /dev/null
+++ b/include/linux/sh_intc.h
@@ -0,0 +1,91 @@
+#ifndef __SH_INTC_H
+#define __SH_INTC_H
+
+typedef unsigned char intc_enum;
+
+struct intc_vect {
+ intc_enum enum_id;
+ unsigned short vect;
+};
+
+#define INTC_VECT(enum_id, vect) { enum_id, vect }
+#define INTC_IRQ(enum_id, irq) INTC_VECT(enum_id, irq2evt(irq))
+
+struct intc_group {
+ intc_enum enum_id;
+ intc_enum enum_ids[32];
+};
+
+#define INTC_GROUP(enum_id, ids...) { enum_id, { ids } }
+
+struct intc_mask_reg {
+ unsigned long set_reg, clr_reg, reg_width;
+ intc_enum enum_ids[32];
+#ifdef CONFIG_SMP
+ unsigned long smp;
+#endif
+};
+
+struct intc_prio_reg {
+ unsigned long set_reg, clr_reg, reg_width, field_width;
+ intc_enum enum_ids[16];
+#ifdef CONFIG_SMP
+ unsigned long smp;
+#endif
+};
+
+struct intc_sense_reg {
+ unsigned long reg, reg_width, field_width;
+ intc_enum enum_ids[16];
+};
+
+#ifdef CONFIG_SMP
+#define INTC_SMP(stride, nr) .smp = (stride) | ((nr) << 8)
+#else
+#define INTC_SMP(stride, nr)
+#endif
+
+struct intc_desc {
+ struct intc_vect *vectors;
+ unsigned int nr_vectors;
+ struct intc_group *groups;
+ unsigned int nr_groups;
+ struct intc_mask_reg *mask_regs;
+ unsigned int nr_mask_regs;
+ struct intc_prio_reg *prio_regs;
+ unsigned int nr_prio_regs;
+ struct intc_sense_reg *sense_regs;
+ unsigned int nr_sense_regs;
+ char *name;
+#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
+ struct intc_mask_reg *ack_regs;
+ unsigned int nr_ack_regs;
+#endif
+};
+
+#define _INTC_ARRAY(a) a, sizeof(a)/sizeof(*a)
+#define DECLARE_INTC_DESC(symbol, chipname, vectors, groups, \
+ mask_regs, prio_regs, sense_regs) \
+struct intc_desc symbol __initdata = { \
+ _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \
+ _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \
+ _INTC_ARRAY(sense_regs), \
+ chipname, \
+}
+
+#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
+#define DECLARE_INTC_DESC_ACK(symbol, chipname, vectors, groups, \
+ mask_regs, prio_regs, sense_regs, ack_regs) \
+struct intc_desc symbol __initdata = { \
+ _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \
+ _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \
+ _INTC_ARRAY(sense_regs), \
+ chipname, \
+ _INTC_ARRAY(ack_regs), \
+}
+#endif
+
+void __init register_intc_controller(struct intc_desc *desc);
+int intc_set_priority(unsigned int irq, unsigned int prio);
+
+#endif /* __SH_INTC_H */