static int cbp_pm_event(struct notifier_block *notifier, unsigned long pm_event, void *unused)
{
struct cbp_platform_data *cdata = &cbp_data;
unsigned long flags;
LOGPRT(LOG_NOTICE,"%s pm_event=%ld\n",__FUNCTION__,pm_event);
switch(pm_event) {
case PM_HIBERNATION_PREPARE:
// This event is recieved when system is preparing to hibernation.
// i.e., IPO-H power off in kernel space, where user/kernel space processes are not freezed yet.
return NOTIFY_DONE;
case PM_RESTORE_PREPARE:
// This event is recieved before system is preparing to restore,
// i.e., IPO-H power on, where kernel is on the way to late_initcall() in normal boot.
return NOTIFY_DONE;
case PM_POST_HIBERNATION:
// This event is recieved, after system is restored, and user/kernel processes are unfreezed and can operate on.
if (cdata->modem){
LOGPRT(LOG_INFO, "%s: set md off.\n", __func__);
spin_lock_irqsave(&cdata->modem->status_lock, flags);
cdata->modem->status = MD_OFF;
spin_unlock_irqrestore(&cdata->modem->status_lock, flags);
}
LOGPRT(LOG_NOTICE,"[%s] ipoh occured\n", __FUNCTION__);
modem_reset_handler();
c2k_platform_restore_first_init();
LOGPRT(LOG_NOTICE, "%s %d power off sdio host\n", __func__, __LINE__);
c2k_wake_host(0);
LOGPRT(LOG_NOTICE, "%s %d notify user space ipoh\n", __func__, __LINE__);
modem_ipoh_indication_usr();
return NOTIFY_DONE;
}
return NOTIFY_OK;
}
static int cbp_pm_event(struct notifier_block *notifier, unsigned long pm_event, void *unused)
{
LOGPRT(LOG_NOTICE,"%s pm_event=%d\n",__FUNCTION__,pm_event);
switch(pm_event) {
case PM_HIBERNATION_PREPARE:
// This event is recieved when system is preparing to hibernation.
// i.e., IPO-H power off in kernel space, where user/kernel space processes are not freezed yet.
return NOTIFY_DONE;
case PM_RESTORE_PREPARE:
// This event is recieved before system is preparing to restore,
// i.e., IPO-H power on, where kernel is on the way to late_initcall() in normal boot.
return NOTIFY_DONE;
case PM_POST_HIBERNATION:
// This event is recieved, after system is restored, and user/kernel processes are unfreezed and can operate on.
cbp_power_state = 0;
LOGPRT(LOG_NOTICE,"[%s] ipoh occured\n", __FUNCTION__);
modem_reset_handler();
LOGPRT(LOG_NOTICE, "%s %d power off sdio host\n", __func__, __LINE__);
oem_wake_host(0);
LOGPRT(LOG_NOTICE, "%s %d notify user space ipoh\n", __func__, __LINE__);
modem_ipoh_indication_usr();
return NOTIFY_DONE;
}
return NOTIFY_OK;
}