static int wd_restart(enum wd_restart_type type)
{
#ifdef CONFIG_LOCAL_WDT
#ifdef CONFIG_SMP
on_each_cpu((smp_call_func_t)mpcore_wdt_restart, WK_WDT_LOC_TYPE, 0);
#else
mpcore_wdt_restart(type);
#endif
#endif
mtk_wdt_restart(type);
return 0;
}
int local_wdt_enable(enum wk_wdt_en en)
{
if(WK_WDT_EN ==en)
{
mpcore_wdt_restart(WD_TYPE_NORMAL);
}
if(WK_WDT_DIS==en)
{
mpcore_wk_wdt_stop();
}
return 0;
}
static int kwdt_thread(void *arg)
{
struct sched_param param = { .sched_priority = RTPM_PRIO_WDT};
struct rtc_time tm;
struct timeval tv = {0};
/* android time */
struct rtc_time tm_android;
struct timeval tv_android = {0};
int cpu = 0;
int local_bit = 0, loc_need_config = 0, loc_timeout = 0;
struct wd_api *loc_wk_wdt = NULL;
sched_setscheduler(current, SCHED_FIFO, ¶m);
set_current_state(TASK_INTERRUPTIBLE);
for(;;)
{
if (kthread_should_stop()) break;
spin_lock(&lock);
cpu = smp_processor_id();
loc_wk_wdt = g_wd_api;
loc_need_config = g_need_config;
loc_timeout = g_timeout;
spin_unlock(&lock);
//printk("fwq loc_wk_wdt(%x),loc_wk_wdt->ready(%d)\n",loc_wk_wdt ,loc_wk_wdt->ready);
if (loc_wk_wdt && loc_wk_wdt->ready && g_enable)
{
if (loc_need_config)
{
// daul mode
loc_wk_wdt->wd_config(WDT_DUAL_MODE, loc_timeout);
spin_lock(&lock);
g_need_config = 0;
spin_unlock(&lock);
}
//printk("[WDK] cpu-task=%d, current_pid=%d\n", wk_tsk[cpu]->pid, current->pid);
if(wk_tsk[cpu]->pid == current->pid)
{
//only process WDT info if thread-x is on cpu-x
spin_lock(&lock);
local_bit = kick_bit;
//printk_sched("[WDK], local_bit:0x%x, cpu:%d,RT[%lld]\n", local_bit, cpu,sched_clock());
if((local_bit&(1<<cpu)) == 0)
{
//printk("[WDK]: set WDT kick_bit\n");
local_bit |= (1<<cpu);
//aee_rr_rec_wdk_kick_jiffies(jiffies);
}
//printk_sched("[WDK], local_bit:0x%x, cpu:%d, check bit0x:%x,RT[%lld]\n", local_bit, cpu, wk_check_kick_bit(),sched_clock());
if(local_bit == wk_check_kick_bit())
{
//printk_sched("[WDK]: kick Ex WDT,RT[%lld]\n",sched_clock());
mtk_wdt_restart(WD_TYPE_NORMAL);// for KICK external wdt
local_bit = 0;
}
kick_bit = local_bit;
spin_unlock(&lock);
#ifdef CONFIG_LOCAL_WDT
//printk_sched("[WDK]: cpu:%d, kick local wdt,RT[%lld]\n", cpu,sched_clock());
// kick local wdt
mpcore_wdt_restart(WD_TYPE_NORMAL);
#endif
}
}
else if(0 == g_enable)
{
printk("WDK stop to kick \n");
}
else
{
errmsg("No watch dog driver is hooked\n");
BUG();
}
if(wk_tsk[cpu]->pid == current->pid)
{
#if (DEBUG_WDK==1)
msleep_interruptible(debug_sleep * 1000);
dbgmsg("WD kicker woke up %d\n", debug_sleep);
#endif
do_gettimeofday(&tv);
tv_android = tv;
rtc_time_to_tm(tv.tv_sec, &tm);
tv_android.tv_sec -= sys_tz.tz_minuteswest*60;
rtc_time_to_tm(tv_android.tv_sec, &tm_android);
/*
printk_sched("[thread:%d][RT:%lld] %d-%02d-%02d %02d:%02d:%02d.%u UTC; android time %d-%02d-%02d %02d:%02d:%02d.%03d\n", current->pid,sched_clock(),
tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
tm.tm_hour, tm.tm_min, tm.tm_sec,
(unsigned int) tv.tv_usec,
tm_android.tm_year + 1900, tm_android.tm_mon + 1, tm_android.tm_mday,
tm_android.tm_hour, tm_android.tm_min, tm_android.tm_sec,
(unsigned int) tv_android.tv_usec );
*/
}
msleep_interruptible((g_kinterval) * 1000);
#ifdef CONFIG_MTK_AEE_POWERKEY_HANG_DETECT
if( (cpu==0)&&(wk_tsk[cpu]->pid == current->pid))//only effect at cpu0
{
if(aee_kernel_wdt_kick_api(g_kinterval)==WDT_PWK_HANG_FORCE_HWT)
{
//printk_sched("power key trigger HWT\n");
cpus_kick_bit=0xFFFF; //Try to force to HWT
}
}
#endif
}
printk("[WDK] WDT kicker thread stop, cpu:%d, pid:%d\n", cpu, current->pid);
return 0;
}
