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- #ifndef _TTY_POS_H_
- #define _TTY_POS_H_
- #include <linux/module.h>
- #include <linux/version.h>
- #include <linux/kernel.h>
- #include <linux/errno.h>
- #include <linux/init.h>
- #include <linux/slab.h>
- #include <linux/tty.h>
- #include <linux/tty_driver.h>
- #include <linux/tty_flip.h>
- #include <linux/kref.h>
- #include <linux/uaccess.h>
- #include <linux/usb.h>
- #include <linux/mutex.h>
- #include <linux/time.h>
- #include <linux/sched.h>
- #ifdef LINUX_VERSION_CODE
- #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0))
- #include <linux/err.h>
- #include <linux/kthread.h>
- #endif
- #endif
- #define USB_VENDOR_ID 0x1234
- #define USB_PRODUCT_ID 0x0101
- static struct usb_device_id pos_usb_table[] = {
- { USB_DEVICE(USB_VENDOR_ID, USB_PRODUCT_ID) },
- {},
- };
- MODULE_DEVICE_TABLE(usb,pos_usb_table);
- //#define POS_TTY_MAJOR 192 /* experimental range */
- #define POS_TTY_MINORS 20 /* only have 20 devices */
- #define THREAD_INIT 0x00
- #define THREAD_STOPPED 0x01
- #define THREAD_CREATED 0x82
- #define THREAD_CLOSE 0x83
- #define THREAD_IS_RUNNING(ThreadState) (ThreadState & 0x80)
- #define WRITE_COMMAND 0 /* write to usb device command */
- #define READ_COMMAND 1 /* read from to usb device command */
- #define STATUS_COMMAND 2 /* get device buffer status command */
- #define POOL_SIZE 10241
- typedef struct _POOL {
- unsigned int ReadPos;
- unsigned int WritePos;
- unsigned char Buffer[POOL_SIZE];
- } __attribute__((packed)) POOL, *PPOOL;
- typedef struct {
- unsigned char SeqNo;
- unsigned char ReqType; /* 0:OUT, 1:IN, 2:STAT, 3:RESET */
- unsigned short Len;
- unsigned char Data[508];
- } __attribute__((packed)) ST_BULK_IO;
- typedef struct {
- unsigned int TxBufSize;
- unsigned int RxBufSize;
- unsigned int TxLeft;
- unsigned int RxLeft;
- } __attribute__((packed)) ST_BIO_STATE;
- struct tty_pos {
- struct tty_struct *tty;
- unsigned char devIndex;
- /* for tiocmget and tiocmset functions */
- int msr; /* MSR shadow */
- int mcr; /* MCR shadow */
- struct file *filp;
- struct usb_device *udev;
- struct usb_interface *interface;
- struct urb *urb;
- wait_queue_head_t urb_wait;
- atomic_t urb_done;
- int timeout_jiffies;
- atomic_t urb_busy;
- wait_queue_head_t write_wait;
- atomic_t write_flag;
- __u8 bulk_in_epAddr;
- __u8 bulk_out_epAddr;
- struct kref kref;
- struct mutex io_mutex; /* synchronize I/O with disconnect */
- volatile u8 ThreadState;
- struct completion ThreadExit_completion;
- unsigned char SeqCount;
- ST_BULK_IO *BioPack; /* for IO access */
- ST_BIO_STATE BioDevState;
- POOL TxPool;
- };
- #define to_pos_dev(d) container_of(d, struct tty_pos, kref)
- #define INIT_POOL_BUFFER(pool) pool.ReadPos = pool.WritePos = 0
- #define IS_POOL_EMPTY(pool) (pool.ReadPos == pool.WritePos)
- #define GET_USING_POOL(pool) \
- ((pool.WritePos + POOL_SIZE - pool.ReadPos) % POOL_SIZE)
- #define GET_SPACE_POOL(pool) (POOL_SIZE - 1 - GET_USING_POOL(pool))
- #if 0
- #define ERR(stuff...)
- #define INFO(stuff...)
- #else
- #define ERR(stuff...) printk(KERN_ERR "ttyPos: " stuff)
- #define INFO(stuff...) printk(KERN_INFO "ttyPos: " stuff)
- #endif
- //--error code define of API call
- #define USB_ERR_NOT_OPEN (-3403)//通道未打开
- #define USB_ERR_BUF (-3404)//发送缓冲区错误
- #define USB_ERR_NOT_FREE (-3405)//无可用的端口
- #define USB_ERR_NO_CONF (-3411)//设备未完成枚举和配置过程
- #define USB_ERR_DISCONN (-3412)//设备已经与主机断开
- #define USB_ERR_MEM_SYSTEM (-3413)//系统内存出现异常
- #define USB_ERR_BUSY (-3414)//USB系统忙碌
- #define USB_ERR_RC_SYSTEM (-3415)//系统资源申请失败
- #define USB_ERR_DEV_ABSENT (-3416)//USB主机上设备不在位
- #define USB_ERR_INVALID (-3417)//USB通讯状态无效
- #endif
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