patch-2.1.106 linux/include/asm-arm/arch-a5k/irq.h
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- Lines: 131
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
v2.1.105/linux/include/asm-arm/arch-a5k/irq.h
- Orig date:
Fri May 8 23:14:54 1998
diff -u --recursive --new-file v2.1.105/linux/include/asm-arm/arch-a5k/irq.h linux/include/asm-arm/arch-a5k/irq.h
@@ -1,130 +0,0 @@
-/*
- * include/asm-arm/arch-a5k/irq.h
- *
- * Copyright (C) 1996 Russell King
- *
- * Changelog:
- * 24-09-1996 RMK Created
- * 10-10-1996 RMK Brought up to date with arch-sa110eval
- * 22-10-1996 RMK Changed interrupt numbers & uses new inb/outb macros
- * 11-01-1998 RMK Added mask_and_ack_irq
- */
-
-#define BUILD_IRQ(s,n,m) \
- void IRQ##n##_interrupt(void); \
- void fast_IRQ##n##_interrupt(void); \
- void bad_IRQ##n##_interrupt(void); \
- void probe_IRQ##n##_interrupt(void);
-
-/*
- * The timer is a special interrupt
- */
-#define IRQ5_interrupt timer_IRQ_interrupt
-
-#define IRQ_INTERRUPT(n) IRQ##n##_interrupt
-#define FAST_INTERRUPT(n) fast_IRQ##n##_interrupt
-#define BAD_INTERRUPT(n) bad_IRQ##n##_interrupt
-#define PROBE_INTERRUPT(n) probe_IRQ##n##_interrupt
-
-#define X(x) (x)|0x01, (x)|0x02, (x)|0x04, (x)|0x08, (x)|0x10, (x)|0x20, (x)|0x40, (x)|0x80
-#define Z(x) (x), (x), (x), (x), (x), (x), (x), (x)
-
-static __inline__ void mask_and_ack_irq(unsigned int irq)
-{
- static const int addrmasks[] = {
- X((IOC_IRQMASKA - IOC_BASE)<<18 | (1 << 15)),
- X((IOC_IRQMASKB - IOC_BASE)<<18),
- Z(0),
- Z(0),
- Z(0),
- Z(0),
- Z(0),
- Z(0),
- X((IOC_FIQMASK - IOC_BASE)<<18),
- Z(0),
- Z(0),
- Z(0),
- Z(0),
- Z(0),
- Z(0),
- Z(0)
- };
- unsigned int temp1, temp2;
-
- __asm__ __volatile__(
-" ldr %1, [%5, %3, lsl #2]\n"
-" teq %1, #0\n"
-" beq 2f\n"
-" ldrb %0, [%2, %1, lsr #16]\n"
-" bic %0, %0, %1\n"
-" strb %0, [%2, %1, lsr #16]\n"
-" tst %1, #0x8000\n" /* do we need an IRQ clear? */
-" strneb %1, [%2, %4]\n"
-"2:"
- : "=&r" (temp1), "=&r" (temp2)
- : "r" (ioaddr(IOC_BASE)), "r" (irq),
- "I" ((IOC_IRQCLRA - IOC_BASE) << 2), "r" (addrmasks));
-}
-
-#undef X
-#undef Z
-
-static __inline__ void mask_irq(unsigned int irq)
-{
- extern void ecard_disableirq (unsigned int);
- extern void ecard_disablefiq (unsigned int);
- unsigned char mask = 1 << (irq & 7);
-
- switch (irq >> 3) {
- case 0:
- outb(inb(IOC_IRQMASKA) & ~mask, IOC_IRQMASKA);
- break;
- case 1:
- outb(inb(IOC_IRQMASKB) & ~mask, IOC_IRQMASKB);
- break;
- case 4:
- ecard_disableirq (irq & 7);
- break;
- case 8:
- outb(inb(IOC_FIQMASK) & ~mask, IOC_FIQMASK);
- break;
- case 12:
- ecard_disablefiq (irq & 7);
- }
-}
-
-static __inline__ void unmask_irq(unsigned int irq)
-{
- extern void ecard_enableirq (unsigned int);
- extern void ecard_enablefiq (unsigned int);
- unsigned char mask = 1 << (irq & 7);
-
- switch (irq >> 3) {
- case 0:
- outb(inb(IOC_IRQMASKA) | mask, IOC_IRQMASKA);
- break;
- case 1:
- outb(inb(IOC_IRQMASKB) | mask, IOC_IRQMASKB);
- break;
- case 4:
- ecard_enableirq (irq & 7);
- break;
- case 8:
- outb(inb(IOC_FIQMASK) | mask, IOC_FIQMASK);
- break;
- case 12:
- ecard_enablefiq (irq & 7);
- }
-}
-
-static __inline__ unsigned long get_enabled_irqs(void)
-{
- return inb(IOC_IRQMASKA) | inb(IOC_IRQMASKB) << 8;
-}
-
-static __inline__ void irq_init_irq(void)
-{
- outb(0, IOC_IRQMASKA);
- outb(0, IOC_IRQMASKB);
- outb(0, IOC_FIQMASK);
-}
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