Rev 333 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | pj | 1 | #include <kernel/kern.h> |
| 2 | #include <linux/compatib.h> |
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| 3 | |||
| 4 | static struct { |
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| 5 | void (*func)(int, void *dev_id, struct pt_regs *); |
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| 6 | void *data; |
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| 7 | int flags; |
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| 8 | } handlers[16]; |
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| 9 | |||
| 10 | unsigned long intr_count = 0; |
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| 11 | |||
| 12 | /* |
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| 13 | * Generic Linux interrupt handler. |
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| 14 | */ |
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| 15 | static void linux_intr(int irq) |
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| 16 | { |
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| 17 | struct pt_regs regs; |
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| 333 | giacomo | 18 | #ifdef NOTWORK |
| 2 | pj | 19 | SYS_FLAGS f; |
| 333 | giacomo | 20 | #endif |
| 2 | pj | 21 | |
| 22 | /* kstat.interrupts[irq]++;*/ |
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| 23 | intr_count++; |
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| 24 | |||
| 25 | #ifdef NOTWORK |
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| 26 | if ((handlers[irq].flags & SA_INTERRUPT) != 0) { |
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| 27 | f = kern_fsave(); |
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| 28 | } |
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| 29 | #endif |
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| 30 | |||
| 31 | (*handlers[irq].func)(irq, handlers[irq].data, ®s); |
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| 32 | |||
| 33 | #ifdef NOTWORK |
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| 34 | if ((handlers[irq].flags & SA_INTERRUPT) != 0) { |
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| 35 | kern_frestore(f); |
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| 36 | } |
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| 37 | #endif |
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| 38 | /* cprintf("LinuxInt done\n"); */ |
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| 39 | intr_count--; |
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| 40 | |||
| 41 | } |
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| 42 | |||
| 43 | /* |
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| 44 | * Attach a handler to an IRQ. |
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| 45 | */ |
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| 46 | int request_irq(unsigned int irq, void (*handler)(int, void *dev_id, struct pt_regs *), unsigned long flags, const char *device, void *dev_id) |
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| 47 | { |
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| 48 | |||
| 49 | if (handlers[irq].func) { |
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| 50 | return (-EBUSY); |
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| 51 | } |
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| 52 | |||
| 53 | handlers[irq].func = handler; |
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| 54 | handlers[irq].flags = flags; |
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| 55 | handlers[irq].data = dev_id; |
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| 56 | |||
| 496 | giacomo | 57 | handler_set(irq, linux_intr, NIL, TRUE); |
| 2 | pj | 58 | /*if (fdev_intr_alloc(irq, linux_intr, (void *)irq, 0)) { |
| 59 | handlers[irq].func = 0; |
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| 60 | return (-EBUSY); |
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| 61 | } |
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| 62 | if (!handler) { |
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| 63 | handlers[irq].func = 0; |
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| 64 | fdev_intr_free(irq); |
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| 65 | return (-LINUX_EINVAL); |
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| 66 | }*/ |
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| 67 | return 0; |
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| 68 | } |
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| 69 | |||
| 70 | /* |
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| 71 | * Deallocate an irq. |
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| 72 | */ |
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| 73 | void free_irq(unsigned int irq) |
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| 74 | { |
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| 75 | handler_remove(irq); |
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| 76 | handlers[irq].func = 0; |
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| 77 | } |