120 lines
3.3 KiB
C
120 lines
3.3 KiB
C
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#ifndef _HUGEIC_DEV_H_
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#define _HUGEIC_DEV_H_
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#include "osal/atomic.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct dev_obj;
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struct devobj_ops{
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#ifdef CONFIG_SLEEP
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int32 (*suspend)(struct dev_obj *obj);
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int32 (*resume)(struct dev_obj *obj);
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#endif
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};
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#ifndef OS_BLKLIST
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#define OS_BLKLIST
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struct os_blklist{
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void *hdl;
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};
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typedef struct os_blklist os_blklist_t;
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#endif
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struct dev_obj{
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uint16 dev_id;
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uint8 busy; /* device 被使用状态，由驱动代码设置。
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有8bit可用，驱动代码根据 read/write/... 设置不同的bit位 */
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uint8 suspend: 1, /* device进入suspend状态，由dev_suspend API设置 */
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hotplug: 1, /* 热插拔设备 */
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rev: 6;
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atomic8_t ref;
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struct dev_obj *next;
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#ifdef CONFIG_SLEEP
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struct os_blklist blklist;
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#endif
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const struct devobj_ops *ops;
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};
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/*热插拔设备*/
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struct dev_hotplug_obj{
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struct dev_hotplug_obj *next;
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void *hdl;
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uint16 dev_id; //设备ID -> see devid.h
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uint16 dev_type; //热插拔设备类型
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void *info; //设备信息
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};
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typedef int32 (*dev_hotplug_walkcb)(const struct dev_hotplug_obj *dev);
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int32 dev_hotplug_in(void *hdl, uint16 dev_id, uint16 dev_type, void *info);
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int32 dev_hotplug_out(void *hdl);
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int32 dev_hotplug_walk(uint16 type, dev_hotplug_walkcb cb);
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#define DEV_BUSY(dev, val, set) dev_busy((struct dev_obj *)(dev), val, set)
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#define DEV_SUSPENDED(dev, suspend) dev_suspended((struct dev_obj *)(dev), suspend)
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#define HALDEV_SUSPENDED(dev) if(dev_suspended((struct dev_obj *)dev, 1)) return RET_ERR
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/**
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* dev core module initialize
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* @return return RET_OK if initialize sucess, else return RET_ERR.
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**/
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extern int32 dev_init(void);
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/**
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* get dev by dev_id
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* @param[in] dev_id device id
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* @return return device object if device exist, else return NULL.
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**/
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extern struct dev_obj *dev_get(uint16 dev_id);
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#define DEV_PUT(dev) dev_put((struct dev_obj *)(dev))
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extern void dev_put(struct dev_obj *dev);
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/*
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* set or clear device busy flag.
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*/
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extern void dev_busy(struct dev_obj *dev, uint8 busy, uint8 set);
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/**
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* register device into dev manager.
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* @param[in] dev_id device id.
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* @param[in] device object to register.
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* @return return RET_OK if register sucess, else return RET_ERR.
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**/
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extern int32 dev_register(uint16 dev_id, struct dev_obj *device);
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/**
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* unregister device into dev manager.
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* @param[in] device object to unregister.
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* @return return RET_OK if register sucess, else return RET_ERR.
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**/
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extern int32 dev_unregister(struct dev_obj *device);
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/* 检查指定的device是否已经被suspend，
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参数suspend：表示如果device已经被suspend，是否suspend当前task
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*/
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int32 dev_suspended(struct dev_obj *dev, uint8 suspend);
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/**
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* device suspend when system enter sleep.
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* @param[in] dsleep sleep or deep sleep.
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* @return return RET_OK if unregister sucess, else return RET_ERR.
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**/
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extern int32 dev_suspend(uint16 type);
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extern int32 dev_suspend_hook(struct dev_obj *dev, uint16 type);
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/**
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* device resume when system resume.
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* @return return RET_OK if unregister sucess, else return RET_ERR.
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**/
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extern int32 dev_resume(uint16 type, uint32 wkreason);
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extern int32 dev_resume_hook(struct dev_obj *dev, uint16 type, uint32 wkreason);
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extern int32 pin_func(uint16 dev_id, int32 request);
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#ifdef __cplusplus
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}
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#endif
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#endif
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