Archipelago » qemu

/* POWER7 internal IRQ controller */

static void power7_set_irq (void *opaque, int pin, int level)

{

    CPUState *env = opaque;

    int cur_level;

    LOG_IRQ("%s: env %p pin %d level %d\n", __func__,

                env, pin, level);

    cur_level = (env->irq_input_state >> pin) & 1;

    switch (pin) {

    case POWER7_INPUT_INT:

        /* Level sensitive - active high */

        LOG_IRQ("%s: set the external IRQ state to %d\n",

                __func__, level);

        ppc_set_irq(env, PPC_INTERRUPT_EXT, level);

        break;

    default:

        /* Unknown pin - do nothing */

        LOG_IRQ("%s: unknown IRQ pin %d\n", __func__, pin);

        return;

    }

    if (level) {

        env->irq_input_state |= 1 << pin;

    } else {

        env->irq_input_state &= ~(1 << pin);

    }

}

void ppcPOWER7_irq_init (CPUState *env)

{

    env->irq_inputs = (void **)qemu_allocate_irqs(&power7_set_irq, env,

                                                  POWER7_INPUT_NB);

}