diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/base/power/wakeup.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/base/power/wakeup.c | 117 |
1 files changed, 111 insertions, 6 deletions
diff --git a/ANDROID_3.4.5/drivers/base/power/wakeup.c b/ANDROID_3.4.5/drivers/base/power/wakeup.c index e6ee5e80..ba06da42 100644 --- a/ANDROID_3.4.5/drivers/base/power/wakeup.c +++ b/ANDROID_3.4.5/drivers/base/power/wakeup.c @@ -415,6 +415,70 @@ static void wakeup_source_report_event(struct wakeup_source *ws) * * It is safe to call this function from interrupt context. */ + + +/*add by kevin ,for wakeup lock debug.default is uncompile +usage: + 1: #define WAKE_TRACE_ENABLE 1 + 2: add wake_trace_show(); in kernel/power/main.c/state_show() + 3: cat /sys/power/state +*/ +#define WAKE_TRACE_ENABLE 0 + +#if WAKE_TRACE_ENABLE +#define WAKE_TRACE_NUMBER 100 +typedef struct{ + char name[64]; + int val; +}WAKE_TRACE; +WAKE_TRACE wake_trace[WAKE_TRACE_NUMBER]; +int wake_trace_init=0; + +void wake_trace_lock(struct wakeup_source *ws){ + int i; + if(wake_trace_init==0){ + wake_trace_init = 1; + memset(wake_trace,0,sizeof(wake_trace)); + } + for(i=0;i<WAKE_TRACE_NUMBER;i++){ + if((strlen(wake_trace[i].name)>0&&!strcmp(wake_trace[i].name,ws->name))) + break; + if(strlen(wake_trace[i].name)<=0) + break; + } + if(i>=WAKE_TRACE_NUMBER) + printk("%s %d %s error\n",__func__,__LINE__,ws->name); + else{ + if(strlen(wake_trace[i].name)<=0){ + printk("%s %d insert %s\n",__func__,__LINE__,ws->name); + strcpy(wake_trace[i].name,ws->name); + } + wake_trace[i].val++; + } +} +void wake_trace_unlock(struct wakeup_source *ws){ + int i; + for(i=0;i<WAKE_TRACE_NUMBER;i++){ + if((strlen(wake_trace[i].name)>0&&!strcmp(wake_trace[i].name,ws->name))) + break; + } + if(i>=WAKE_TRACE_NUMBER) + printk("%s %d %s error\n",__func__,__LINE__,ws->name); + else{ + wake_trace[i].val--; + } +} + +int wake_trace_show(void) +{ + int i; + for(i=0;i<WAKE_TRACE_NUMBER;i++){ + if(strlen(wake_trace[i].name)>0) + printk("%d %s %d\n",i,wake_trace[i].name,wake_trace[i].val); + } +} +EXPORT_SYMBOL_GPL(wake_trace_show); +#endif void __pm_stay_awake(struct wakeup_source *ws) { unsigned long flags; @@ -424,6 +488,10 @@ void __pm_stay_awake(struct wakeup_source *ws) spin_lock_irqsave(&ws->lock, flags); +#if WAKE_TRACE_ENABLE + wake_trace_lock(ws); +#endif + wakeup_source_report_event(ws); del_timer(&ws->timer); ws->timer_expires = 0; @@ -540,6 +608,9 @@ void __pm_relax(struct wakeup_source *ws) return; spin_lock_irqsave(&ws->lock, flags); +#if WAKE_TRACE_ENABLE + wake_trace_unlock(ws); +#endif if (ws->active) wakeup_source_deactivate(ws); spin_unlock_irqrestore(&ws->lock, flags); @@ -611,6 +682,10 @@ void __pm_wakeup_event(struct wakeup_source *ws, unsigned int msec) spin_lock_irqsave(&ws->lock, flags); +#if WAKE_TRACE_ENABLE + wake_trace_lock(ws); +#endif + wakeup_source_report_event(ws); if (!msec) { @@ -653,16 +728,47 @@ void pm_wakeup_event(struct device *dev, unsigned int msec) } EXPORT_SYMBOL_GPL(pm_wakeup_event); +extern int wmt_getsyspara(char *varname, unsigned char *varval, int *varlen); + +static int is_rda5991(void){ + int retval; + unsigned char buf[80]; + int varlen = 80; + + + + memset(buf,0,sizeof(buf)); + varlen = 80; + retval = wmt_getsyspara("wmt.init.rc", buf, &varlen); + if (retval == 0) { + if (!strcmp(buf, "init.rda5991.rc")) + { + printk("is rda5991\n"); + return 1; + } + + } + return 0; + +} + static void print_active_wakeup_sources(void) { struct wakeup_source *ws; int active = 0; struct wakeup_source *last_activity_ws = NULL; - + printk("\n...in %s\n",__FUNCTION__); + if(is_rda5991()){ + printk("skip!\n"); + return; + } rcu_read_lock(); list_for_each_entry_rcu(ws, &wakeup_sources, entry) { + //kevin add for null pointer + if(!ws) + break; if (ws->active) { - pr_info("active wakeup source: %s\n", ws->name); + printk("active wakeup source: %s\n", ws->name); active = 1; } else if (!active && (!last_activity_ws || @@ -671,9 +777,8 @@ static void print_active_wakeup_sources(void) last_activity_ws = ws; } } - if (!active && last_activity_ws) - pr_info("last active wakeup source: %s\n", + printk("last active wakeup source: %s\n", last_activity_ws->name); rcu_read_unlock(); } @@ -836,7 +941,7 @@ static int print_wakeup_source_stats(struct seq_file *m, active_time = ktime_set(0, 0); } - ret = seq_printf(m, "%-12s\t%lu\t\t%lu\t\t%lu\t\t%lu\t\t" + ret = seq_printf(m, "%-20s\t%lu\t\t%lu\t\t%lu\t\t%lu\t\t" "%lld\t\t%lld\t\t%lld\t\t%lld\t\t%lld\n", ws->name, active_count, ws->event_count, ws->wakeup_count, ws->expire_count, @@ -857,7 +962,7 @@ static int wakeup_sources_stats_show(struct seq_file *m, void *unused) { struct wakeup_source *ws; - seq_puts(m, "name\t\tactive_count\tevent_count\twakeup_count\t" + seq_puts(m, "name\t\t\tactive_count\tevent_count\twakeup_count\t" "expire_count\tactive_since\ttotal_time\tmax_time\t" "last_change\tprevent_suspend_time\n"); |