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@@ -1,5 +1,134 @@
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-#ifdef __uClinux__
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-#include "irq_no.h"
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+#ifndef _M68K_IRQ_H_
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+#define _M68K_IRQ_H_
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+
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+/*
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+ * This should be the same as the max(NUM_X_SOURCES) for all the
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+ * different m68k hosts compiled into the kernel.
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+ * Currently the Atari has 72 and the Amiga 24, but if both are
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+ * supported in the kernel it is better to make room for 72.
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+ */
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+#if defined(CONFIG_COLDFIRE)
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+#define NR_IRQS 256
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+#elif defined(CONFIG_VME) || defined(CONFIG_SUN3) || defined(CONFIG_SUN3X)
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+#define NR_IRQS 200
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+#elif defined(CONFIG_ATARI) || defined(CONFIG_MAC)
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+#define NR_IRQS 72
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+#elif defined(CONFIG_Q40)
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+#define NR_IRQS 43
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+#elif defined(CONFIG_AMIGA) || !defined(CONFIG_MMU)
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+#define NR_IRQS 32
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+#elif defined(CONFIG_APOLLO)
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+#define NR_IRQS 24
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+#elif defined(CONFIG_HP300)
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+#define NR_IRQS 8
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#else
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-#include "irq_mm.h"
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+#define NR_IRQS 0
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#endif
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+
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+#ifdef CONFIG_MMU
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+
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+#include <linux/linkage.h>
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+#include <linux/hardirq.h>
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+#include <linux/irqreturn.h>
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+#include <linux/spinlock_types.h>
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+
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+/*
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+ * The hardirq mask has to be large enough to have
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+ * space for potentially all IRQ sources in the system
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+ * nesting on a single CPU:
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+ */
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+#if (1 << HARDIRQ_BITS) < NR_IRQS
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+# error HARDIRQ_BITS is too low!
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+#endif
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+
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+/*
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+ * Interrupt source definitions
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+ * General interrupt sources are the level 1-7.
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+ * Adding an interrupt service routine for one of these sources
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+ * results in the addition of that routine to a chain of routines.
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+ * Each one is called in succession. Each individual interrupt
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+ * service routine should determine if the device associated with
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+ * that routine requires service.
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+ */
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+
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+#define IRQ_SPURIOUS 0
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+
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+#define IRQ_AUTO_1 1 /* level 1 interrupt */
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+#define IRQ_AUTO_2 2 /* level 2 interrupt */
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+#define IRQ_AUTO_3 3 /* level 3 interrupt */
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+#define IRQ_AUTO_4 4 /* level 4 interrupt */
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+#define IRQ_AUTO_5 5 /* level 5 interrupt */
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+#define IRQ_AUTO_6 6 /* level 6 interrupt */
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+#define IRQ_AUTO_7 7 /* level 7 interrupt (non-maskable) */
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+
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+#define IRQ_USER 8
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+
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+extern unsigned int irq_canonicalize(unsigned int irq);
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+
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+struct pt_regs;
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+
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+/*
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+ * various flags for request_irq() - the Amiga now uses the standard
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+ * mechanism like all other architectures - IRQF_DISABLED and
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+ * IRQF_SHARED are your friends.
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+ */
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+#ifndef MACH_AMIGA_ONLY
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+#define IRQ_FLG_LOCK (0x0001) /* handler is not replaceable */
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+#define IRQ_FLG_REPLACE (0x0002) /* replace existing handler */
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+#define IRQ_FLG_FAST (0x0004)
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+#define IRQ_FLG_SLOW (0x0008)
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+#define IRQ_FLG_STD (0x8000) /* internally used */
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+#endif
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+
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+/*
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+ * This structure is used to chain together the ISRs for a particular
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+ * interrupt source (if it supports chaining).
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+ */
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+typedef struct irq_node {
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+ irqreturn_t (*handler)(int, void *);
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+ void *dev_id;
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+ struct irq_node *next;
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+ unsigned long flags;
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+ const char *devname;
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+} irq_node_t;
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+
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+/*
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+ * This structure has only 4 elements for speed reasons
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+ */
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+struct irq_handler {
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+ int (*handler)(int, void *);
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+ unsigned long flags;
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+ void *dev_id;
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+ const char *devname;
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+};
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+
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+struct irq_controller {
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+ const char *name;
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+ spinlock_t lock;
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+ int (*startup)(unsigned int irq);
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+ void (*shutdown)(unsigned int irq);
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+ void (*enable)(unsigned int irq);
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+ void (*disable)(unsigned int irq);
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+};
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+
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+extern int m68k_irq_startup(unsigned int);
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+extern void m68k_irq_shutdown(unsigned int);
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+
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+/*
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+ * This function returns a new irq_node_t
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+ */
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+extern irq_node_t *new_irq_node(void);
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+
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+extern void m68k_setup_auto_interrupt(void (*handler)(unsigned int, struct pt_regs *));
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+extern void m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt,
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+ void (*handler)(unsigned int, struct pt_regs *));
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+extern void m68k_setup_irq_controller(struct irq_controller *, unsigned int, unsigned int);
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+
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+asmlinkage void m68k_handle_int(unsigned int);
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+asmlinkage void __m68k_handle_int(unsigned int, struct pt_regs *);
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+
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+#else
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+#define irq_canonicalize(irq) (irq)
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+#endif /* CONFIG_MMU */
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+
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+#endif /* _M68K_IRQ_H_ */
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Greg Ungerer