/**
* Watchdog interrupt handler
*
*/
static irqreturn_t dsps_wdog_bite_irq(int irq, void *dev_id)
{
pr_err("%s\n", __func__);
dsps_log_sfr();
dsps_restart_handler();
return IRQ_HANDLED;
}
static irqreturn_t dsps_wdog_bite_irq(int irq, void *dev_id)
{
struct dsps_data *drv = dev_id;
atomic_set(&drv->wd_crash, 1);
dsps_log_sfr();
dsps_restart_handler(drv);
return IRQ_HANDLED;
}
static void dsps_smsm_state_cb(void *data, uint32_t old_state,
uint32_t new_state)
{
struct dsps_data *drv = data;
if (drv->crash == 1) {
pr_debug("SMSM_RESET state change ignored\n");
drv->crash = 0;
} else if (new_state & SMSM_RESET) {
dsps_log_sfr();
dsps_restart_handler(drv);
}
}
/**
* SMSM state change callback
*
*/
static void dsps_smsm_state_cb(void *data, uint32_t old_state,
uint32_t new_state)
{
pr_debug("%s\n", __func__);
if (dsps_crash_shutdown_g == 1) {
pr_debug("%s: SMSM_RESET state change ignored\n",
__func__);
dsps_crash_shutdown_g = 0;
return;
}
if (new_state & SMSM_RESET)
dsps_restart_handler(NULL);
}
/**
* IO Control - handle commands from client.
*
*/
static long dsps_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
int ret = 0;
u32 val = 0;
pr_debug("%s.\n", __func__);
switch (cmd) {
case DSPS_IOCTL_ON:
if (!drv->pdata->dsps_pwr_ctl_en) {
ret = dsps_power_on_handler();
dsps_resume();
}
break;
case DSPS_IOCTL_OFF:
if (!drv->pdata->dsps_pwr_ctl_en) {
dsps_suspend();
ret = dsps_power_off_handler();
}
break;
case DSPS_IOCTL_READ_SLOW_TIMER:
val = dsps_read_slow_timer();
ret = put_user(val, (u32 __user *) arg);
break;
case DSPS_IOCTL_READ_FAST_TIMER:
val = dsps_read_fast_timer();
ret = put_user(val, (u32 __user *) arg);
break;
case DSPS_IOCTL_RESET:
pr_err("%s: User-initiated DSPS reset.\nResetting DSPS\n",
__func__);
dsps_restart_handler();
ret = 0;
break;
default:
ret = -EINVAL;
break;
}
return ret;
}