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添加PM头文件

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git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2289 bbd45198-f89e-11dd-88c7-29a3b14d5316
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sc943313837@gmail.com 2012-09-15 12:34:15 +00:00
parent a1519350a4
commit 6a58ebee1f
1 changed files with 80 additions and 0 deletions
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80
components/drivers/include/drivers/pm.h Normal file
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/*
* File : pm.h
* COPYRIGHT (C) 2012, Shanghai Real-Thread Technology Co., Ltd
*
* All rights reserved.
*
* Change Logs:
* Date Author Notes
* 2012-06-02 Bernard the first version
*/
#ifndef __PM_H__
#define __PM_H__
#include <rtthread.h>
#ifdef RT_USING_PM
enum
{
PM_HIGHSPEED_MODE = 0, /* mode 0 */
PM_RUNNING_MODE, /* mode 1 */
PM_SLEEP_MODE, /* mode 2 */
PM_DEEPSLEEP_MODE, /* mode 3 */
PM_TIMER_MODE, /* mode 4 */
PM_DEEPTIMER_MODE, /* mode 5 */
PM_SHUTDOWN_MODE, /* mode 6 */
PM_DEEPSHUTDOWN_MODE, /* mode 7 */
PM_MODE_MAX = PM_DEEPSHUTDOWN_MODE,
};
#define RT_PM_DEVICE(device) (struct rt_pm*)(device)
/**
* device control flag to request or release power
*/
#define RT_PM_DEVICE_CTRL_REQUEST 0x01
#define RT_PM_DEVICE_CTRL_RELEASE 0x02
struct rt_pm;
/**
* low power mode operations
*/
struct rt_pm_ops
{
void (*enter)(struct rt_pm *pm);
void (*exit)(struct rt_pm *pm);
void (*timer_start)(struct rt_pm *pm, rt_uint32_t timeout);
void (*timer_stop)(struct rt_pm *pm);
rt_uint32_t (*timer_get_tick)(struct rt_pm *pm);
};
/**
* power management
*/
struct rt_pm
{
struct rt_device parent;
rt_uint8_t mode[PM_MODE_MAX + 1];
rt_uint8_t pm_mode; /* current pm mode */
rt_uint8_t timer_mask;
rt_uint32_t pm_tick;
const struct rt_pm_ops *ops;
};
void rt_pm_enter(void);
void rt_pm_exit(void);
void rt_pm_request(rt_ubase_t mode);
void rt_pm_release(rt_ubase_t mode);
void rt_system_pm_init(const struct rt_pm_ops *ops, rt_uint8_t timer_mask,
void *user_data);
#endif
#endif