初版
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#ifndef __DEV_MANAGER_H__
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#define __DEV_MANAGER_H__
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#include "system/includes.h"
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#include "typedef.h"
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#include "fs/fs.h"
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#include "dev_reg.h"
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enum {
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DEV_MANAGER_ADD_OK = 0x0,
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DEV_MANAGER_ADD_IN_LIST_AREADY,
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DEV_MANAGER_ADD_ERR_PARM,
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DEV_MANAGER_ADD_ERR_NOMEM,
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DEV_MANAGER_ADD_ERR_NOT_FOUND,
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DEV_MANAGER_ADD_ERR_MOUNT_FAIL,
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};
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// struct __dev;
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///设备节点结构体
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struct __dev {
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struct list_head entry;
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struct __dev_reg *parm;//设备参数
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struct imount *fmnt;
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volatile u8 valid;//有效设备标记， 这里有效是指是否有可播放文件
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volatile u32 active_stamp;///活动设备时间戳，通过时间戳记录当前最后活动设备
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};
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//dev_manager增加设备节点
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int dev_manager_add(char *logo);
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//dev_manager删除设备节点
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int dev_manager_del(char *logo);
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//dev_manager获取设备总数
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u32 dev_manager_get_total(u8 valid);
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//dev_manager通过设备节点检查设备是否在设备链表中
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struct __dev *dev_manager_check(struct __dev *dev);
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//dev_manager通过逻辑盘符检查设备是否在设备链表中
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struct __dev *dev_manager_check_by_logo(char *logo);
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//dev_manager查找第一个设备
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struct __dev *dev_manager_find_first(u8 valid);
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//dev_manager查找最后一个设备
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struct __dev *dev_manager_find_last(u8 valid);
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//dev_manager查找参数设备的前一个设备
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struct __dev *dev_manager_find_prev(struct __dev *dev, u8 valid);
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//dev_manager查找参数设备的后一个设备
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struct __dev *dev_manager_find_next(struct __dev *dev, u8 valid);
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//dev_manager查找最后活动设备
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struct __dev *dev_manager_find_active(u8 valid);
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//dev_manager查找指定逻辑盘符对应的设备
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struct __dev *dev_manager_find_spec(char *logo, u8 valid);
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//dev_manager查找指定序号设备
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struct __dev *dev_manager_find_by_index(u32 index, u8 valid);
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//dev_manager设定指定设备节点设备有效
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void dev_manager_set_valid(struct __dev *dev, u8 flag);
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//dev_manager设定指定设备节点设备为最后活动设备
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void dev_manager_set_active(struct __dev *dev);
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//dev_manager设定指定逻辑盘符的设备有效
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void dev_manager_set_valid_by_logo(char *logo, u8 flag);
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//dev_manager设定指定逻辑盘符的设备为最后活动设备
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void dev_manager_set_active_by_logo(char *logo);
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//dev_manager获取指定设备节点的逻辑盘符
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char *dev_manager_get_logo(struct __dev *dev);
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//获取物理设备节点的逻辑盘符(去掉_rec后缀)
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char *dev_manager_get_phy_logo(struct __dev *dev);
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//获取录音文件夹设备节点的逻辑盘符(追加_rec后缀)
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char *dev_manager_get_rec_logo(struct __dev *dev);
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//dev_manager获取指定设备节点的文件系统根目录
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char *dev_manager_get_root_path(struct __dev *dev);
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//dev_manager获取指定逻辑盘符的设备的文件系统根目录
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char *dev_manager_get_root_path_by_logo(char *logo);
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//dev_manager通过设备节点获取设备mount信息
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struct imount *dev_manager_get_mount_hdl(struct __dev *dev);
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//dev_manager通过设备节点检查设备是否在线
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int dev_manager_online_check(struct __dev *dev, u8 valid);
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//dev_manager通过逻辑盘符检查设备是否在线
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int dev_manager_online_check_by_logo(char *logo, u8 valid);
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//通过逻辑盘符判断设备是否在设备链表中
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struct __dev *dev_manager_list_check_by_logo(char *logo);
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//检查链表中没有挂载的设备并重新挂载
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void dev_manager_list_check_mount(void);
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//设备挂载
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int dev_manager_mount(char *logo);
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//设备卸载
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int dev_manager_unmount(char *logo);
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//dev_manager初始化
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void dev_manager_init(void);
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void dev_manager_var_init();
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#endif//__DEV_MANAGER_H__
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