Function rt_system_pm_init

components/drivers/pm/pm.c:992–1041

* This function will initialize power management. * * @param ops the PM operations. * @param timer_mask indicates which mode has timer feature. * @param user_data user data */

 * @param user_data user data
 */
void rt_system_pm_init(const struct rt_pm_ops *ops,
                       rt_uint8_t              timer_mask,
                       void                   *user_data)
{
    struct rt_device *device;
    struct rt_pm *pm;

    pm = &_pm;
    device = &(_pm.parent);

    device->type        = RT_Device_Class_PM;
    device->rx_indicate = RT_NULL;
    device->tx_complete = RT_NULL;

#ifdef RT_USING_DEVICE_OPS
    device->ops = &pm_ops;
#else
    device->init        = RT_NULL;
    device->open        = RT_NULL;
    device->close       = RT_NULL;
    device->read        = _rt_pm_device_read;
    device->write       = _rt_pm_device_write;
    device->control     = _rt_pm_device_control;
#endif
    device->user_data   = user_data;

    /* register PM device to the system */
    rt_device_register(device, "pm", RT_DEVICE_FLAG_RDWR);

    rt_memset(pm->modes, 0, sizeof(pm->modes));
    pm->sleep_mode = _pm_default_sleep;

    /* when system power on, set default sleep modes */
    pm->modes[pm->sleep_mode] = 1;
    pm->module_status[PM_POWER_ID].req_status = 1;
    pm->run_mode   = RT_PM_DEFAULT_RUN_MODE;
    pm->timer_mask = timer_mask;

    pm->ops = ops;

    pm->device_pm = RT_NULL;

    rt_slist_init(&pm->device_list);

#if IDLE_THREAD_STACK_SIZE <= 256
    #error "[pm.c ERR] IDLE Stack Size Too Small!"
#endif

    _pm_init_flag = 1;
}

#ifdef RT_USING_FINSH
#include <finsh.h>