Revision b0a21b53 hw/i8259.c
| b/hw/i8259.c | ||
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| 122 | 122 |
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| 123 | 123 |
/* raise irq to CPU if necessary. must be called every time the active |
| 124 | 124 |
irq may change */ |
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void pic_update_irq(void) |
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static void pic_update_irq(void)
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{
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int irq2, irq; |
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|
| ... | ... | |
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#ifdef DEBUG_IRQ_LATENCY |
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int64_t irq_time[16]; |
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int64_t cpu_get_ticks(void); |
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| 164 | 163 |
#endif |
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#if defined(DEBUG_PIC) |
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int irq_level[16]; |
| ... | ... | |
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return ret; |
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} |
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static void pic_save(QEMUFile *f, void *opaque) |
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{
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PicState *s = opaque; |
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qemu_put_8s(f, &s->last_irr); |
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qemu_put_8s(f, &s->irr); |
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qemu_put_8s(f, &s->imr); |
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qemu_put_8s(f, &s->isr); |
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qemu_put_8s(f, &s->priority_add); |
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qemu_put_8s(f, &s->irq_base); |
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qemu_put_8s(f, &s->read_reg_select); |
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qemu_put_8s(f, &s->poll); |
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qemu_put_8s(f, &s->special_mask); |
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qemu_put_8s(f, &s->init_state); |
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qemu_put_8s(f, &s->auto_eoi); |
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qemu_put_8s(f, &s->rotate_on_auto_eoi); |
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qemu_put_8s(f, &s->special_fully_nested_mode); |
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qemu_put_8s(f, &s->init4); |
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} |
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static int pic_load(QEMUFile *f, void *opaque, int version_id) |
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{
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PicState *s = opaque; |
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if (version_id != 1) |
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return -EINVAL; |
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qemu_get_8s(f, &s->last_irr); |
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qemu_get_8s(f, &s->irr); |
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qemu_get_8s(f, &s->imr); |
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qemu_get_8s(f, &s->isr); |
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qemu_get_8s(f, &s->priority_add); |
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qemu_get_8s(f, &s->irq_base); |
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qemu_get_8s(f, &s->read_reg_select); |
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qemu_get_8s(f, &s->poll); |
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qemu_get_8s(f, &s->special_mask); |
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qemu_get_8s(f, &s->init_state); |
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qemu_get_8s(f, &s->auto_eoi); |
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qemu_get_8s(f, &s->rotate_on_auto_eoi); |
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qemu_get_8s(f, &s->special_fully_nested_mode); |
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qemu_get_8s(f, &s->init4); |
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return 0; |
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} |
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/* XXX: add generic master/slave system */ |
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static void pic_init1(int io_addr, PicState *s) |
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{
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register_ioport_write(io_addr, 2, 1, pic_ioport_write, s); |
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register_ioport_read(io_addr, 2, 1, pic_ioport_read, s); |
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register_savevm("i8259", io_addr, 1, pic_save, pic_load, s);
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} |
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void pic_init(void) |
| 380 | 432 |
{
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register_ioport_write(0x20, 2, 1, pic_ioport_write, &pics[0]); |
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register_ioport_read(0x20, 2, 1, pic_ioport_read, &pics[0]); |
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register_ioport_write(0xa0, 2, 1, pic_ioport_write, &pics[1]); |
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register_ioport_read(0xa0, 2, 1, pic_ioport_read, &pics[1]); |
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pic_init1(0x20, &pics[0]); |
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pic_init1(0xa0, &pics[1]); |
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} |
| 386 | 436 |
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