irqreturn_t snd_mpu401_uart_interrupt(int irq, void *dev_id)
{
struct snd_mpu401 *mpu = dev_id;
if (mpu == NULL)
return IRQ_NONE;
_snd_mpu401_uart_interrupt(mpu);
return IRQ_HANDLED;
}
/**
* snd_mpu401_uart_interrupt - generic MPU401-UART interrupt handler
* @irq: the irq number
* @dev_id: mpu401 instance
* @regs: the reigster
*
* Processes the interrupt for MPU401-UART i/o.
*/
irqreturn_t snd_mpu401_uart_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
mpu401_t *mpu = dev_id;
if (mpu == NULL)
return IRQ_NONE;
_snd_mpu401_uart_interrupt(mpu);
return IRQ_HANDLED;
}
/*
* timer callback
* reprogram the timer and call the interrupt job
*/
static void snd_mpu401_uart_timer(unsigned long data)
{
mpu401_t *mpu = (mpu401_t *)data;
spin_lock(&mpu->timer_lock);
/*mpu->mode |= MPU401_MODE_TIMER;*/
mpu->timer.expires = 1 + jiffies;
add_timer(&mpu->timer);
spin_unlock(&mpu->timer_lock);
if (mpu->rmidi)
_snd_mpu401_uart_interrupt(mpu);
}
/*
* timer callback
* reprogram the timer and call the interrupt job
*/
static void snd_mpu401_uart_timer(unsigned long data)
{
struct snd_mpu401 *mpu = (struct snd_mpu401 *)data;
unsigned long flags;
spin_lock_irqsave(&mpu->timer_lock, flags);
/*mpu->mode |= MPU401_MODE_TIMER;*/
mod_timer(&mpu->timer, 1 + jiffies);
spin_unlock_irqrestore(&mpu->timer_lock, flags);
if (mpu->rmidi)
_snd_mpu401_uart_interrupt(mpu);
}
static void snd_mpu401_uart_timer(unsigned long data)
{
struct snd_mpu401 *mpu = (struct snd_mpu401 *)data;
unsigned long flags;
spin_lock_irqsave(&mpu->timer_lock, flags);
mpu->timer.expires = 1 + jiffies;
add_timer(&mpu->timer);
spin_unlock_irqrestore(&mpu->timer_lock, flags);
if (mpu->rmidi)
_snd_mpu401_uart_interrupt(mpu);
}
