85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
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#ifndef __USB_STORAGE_H__
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#define __USB_STORAGE_H__
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#include "system/task.h"
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#include "device/device.h"
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#include "usb/scsi.h"
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#include "usb_bulk_transfer.h"
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#include "usb/host/usb_host.h"
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#define UDISK_READ_AHEAD_ENABLE 1 //使能U盘预读功能
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#define UDISK_READ_AHEAD_BLOCK_NUM 16 //U盘预读扇区数量
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#define check_usb_read_ahead(ret) \
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if(ret < 0) {\
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log_error("func:%s,line:%d,lba:%d,ret:%d\n", __func__, __LINE__, lba, ret);\
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goto __exit;\
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} //检查函数返回值，0:正确 非0:错误
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/**@enum usb_sta
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* @brief USB设备当前状态
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*/
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typedef enum usb_sta {
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DEV_IDLE = 0,
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DEV_INIT,
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DEV_OPEN,
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DEV_READ,
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DEV_WRITE,
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DEV_CLOSE,
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DEV_SUSPEND,
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} USB_STA ;
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struct udisk_end_desc {
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u8 host_epout;
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u8 target_epout;
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u8 host_epin;
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u8 target_epin;
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#if HUSB_MODE
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u16 rxmaxp;
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u16 txmaxp;
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#endif
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};
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#define ENABLE_DISK_HOTPLUG 0
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struct mass_storage {
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OS_MUTEX mutex;
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struct usb_scsi_cbw cbw;
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struct usb_scsi_csw csw;
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struct request_sense_data sense;
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char *name;
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struct read_capacity_data capacity[2];
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u8 lun;
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u8 curlun;
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u8 dev_status;
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u8 suspend_cnt;
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u8 read_only;
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u32 remain_len;
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u32 prev_lba;
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#if UDISK_READ_AHEAD_ENABLE
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u8 udisk_read_ahead_en;
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u8 *udisk_read_ahead_buf; ///<U盘512byte大小BUFFER指针
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u32 udisk_read_ahead_lba_last; ///<异步模式上一次地址
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#endif
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#if ENABLE_DISK_HOTPLUG
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u8 media_sta_cur; //for card reader, card removable
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u8 media_sta_prev;
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int test_unit_ready_tick;
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#endif
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};
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enum usb_async_mode {
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BULK_ASYNC_MODE_EXIT = 0, //取消异步模式
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BULK_ASYNC_MODE_SEM_PEND, //异步预读等待信号量
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};
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#define MASS_LBA_INIT (-2)
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int usb_msd_parser(struct usb_host_device *host_dev, u8 interface_num, const u8 *pBuf);
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int _usb_stor_async_wait_sem(struct usb_host_device *host_dev);
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#endif
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