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标题: arm驱动（7） [打印本页]

作者: yuyang911220 时间: 2014-8-29 17:24 标题: arm驱动（7）

int keyirq_open(struct inode *inode, struct file *file)
{
clearIrq();

#if 1
enable_irq(IRQ_EINT0);
enable_irq(IRQ_EINT1);
enable_irq(IRQ_EINT6);
#endif

sema_init(&key_sem, 0);
return 0;
}

int keyirq_release(struct inode *inode, struct file *filp)
{
#if 1
disable_irq(IRQ_EINT0);
disable_irq(IRQ_EINT1);
disable_irq(IRQ_EINT6);
#endif
return 0;
}

static int keyirq_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{
return 0;
}

struct file_operations keyirq_fops = {
   .owner= THIS_MODULE,
   .read = keyirq_read,
   .open = keyirq_open,
   .release = keyirq_release,
   .ioctl = keyirq_ioctl,
};

int __init keyirq_init(void)
{
int rc;

printk("_SDK2410 gpio key driver irq=%d\n", IRQ_EINT0);

set_irq_type(IRQ_EINT0, IRQT_FALLING);
set_irq_type(IRQ_EINT1, IRQT_FALLING);
set_irq_type(IRQ_EINT6, IRQT_FALLING);

rc = request_irq(IRQ_EINT0, key1_irq_isr, SA_INTERRUPT, "key2345irq", NULL);
if (rc) {
      printk ("<1>keyirq 1 irq not registered. Error:%d\n", rc);
}

rc = request_irq(IRQ_EINT1, key2_irq_isr, SA_INTERRUPT, "key2345irq", NULL);
if (rc) {
      printk ("<1>keyirq 2 irq not registered. Error:%d\n", rc);
}

rc = request_irq(IRQ_EINT6, key3_irq_isr, SA_INTERRUPT, "key2345irq", NULL);
if (rc) {
      printk ("<1>keyirq 4 irq not registered. Error:%d\n", rc);
}

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