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[components][pm]add check for pm initialize.

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This commit is contained in:
EvalZero 2019-05-09 20:53:34 +08:00
parent 2bf9ba0675
commit 42a32fd473
1 changed files with 15 additions and 0 deletions
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15
components/drivers/pm/pm.c
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@ -19,6 +19,7 @@
static struct rt_pm _pm;
static uint8_t _pm_default_sleep = RT_PM_DEFAULT_SLEEP_MODE;
static struct rt_pm_notify _pm_notify;
static uint8_t _pm_init_flag = 0;
#define RT_PM_TICKLESS_THRESH (2)
@ -215,6 +216,9 @@ void rt_system_power_manager(void)
{
uint8_t mode;
if (_pm_init_flag == 0)
return;
/* CPU frequency scaling according to the runing mode settings */
_pm_frequency_scaling(&_pm);
@ -234,6 +238,9 @@ void rt_pm_request(uint8_t mode)
rt_base_t level;
struct rt_pm *pm;
if (_pm_init_flag == 0)
return;
if (mode > (PM_SLEEP_MODE_MAX - 1))
return;
@ -256,6 +263,9 @@ void rt_pm_release(uint8_t mode)
rt_ubase_t level;
struct rt_pm *pm;
if (_pm_init_flag == 0)
return;
if (mode > (PM_SLEEP_MODE_MAX - 1))
return;
@ -423,6 +433,9 @@ int rt_pm_run_enter(uint8_t mode)
rt_base_t level;
struct rt_pm *pm;
if (_pm_init_flag == 0)
return -RT_EIO;
if (mode > PM_RUN_MODE_MAX)
return -RT_EINVAL;
@ -486,6 +499,8 @@ void rt_system_pm_init(const struct rt_pm_ops *ops,
pm->device_pm = RT_NULL;
pm->device_pm_number = 0;
_pm_init_flag = 1;
}
#ifdef RT_USING_FINSH