drivers/staging/keucr/transport.h

   1 #ifndef _TRANSPORT_H_
   2 #define _TRANSPORT_H_
   3
   4 #include <linux/blkdev.h>
   5
   6 /* usb_stor_bulk_transfer_xxx() return codes, in order of severity */
   7 #define USB_STOR_XFER_GOOD      0       /* good transfer                 */
   8 #define USB_STOR_XFER_SHORT     1       /* transferred less than expected */
   9 #define USB_STOR_XFER_STALLED   2       /* endpoint stalled              */
  10 #define USB_STOR_XFER_LONG      3       /* device tried to send too much */
  11 #define USB_STOR_XFER_ERROR     4       /* transfer died in the middle   */
  12
  13 /* Transport return codes */
  14 #define USB_STOR_TRANSPORT_GOOD 0       /* Transport good, command good */
  15 #define USB_STOR_TRANSPORT_FAILED 1     /* Transport good, command failed */
  16 #define USB_STOR_TRANSPORT_NO_SENSE 2   /* Command failed, no auto-sense */
  17 #define USB_STOR_TRANSPORT_ERROR 3      /* Transport bad (i.e. device dead) */
  18
  19 /*
  20  * We used to have USB_STOR_XFER_ABORTED and USB_STOR_TRANSPORT_ABORTED
  21  * return codes.  But now the transport and low-level transfer routines
  22  * treat an abort as just another error (-ENOENT for a cancelled URB).
  23  * It is up to the invoke_transport() function to test for aborts and
  24  * distinguish them from genuine communication errors.
  25  */
  26
  27 /* CBI accept device specific command */
  28 #define US_CBI_ADSC             0
  29 extern int usb_stor_Bulk_transport(struct scsi_cmnd *, struct us_data*);
  30 extern int usb_stor_Bulk_max_lun(struct us_data *);
  31 extern int usb_stor_Bulk_reset(struct us_data *);
  32 extern void usb_stor_invoke_transport(struct scsi_cmnd *, struct us_data*);
  33 extern void usb_stor_stop_transport(struct us_data *);
  34 extern int usb_stor_control_msg(struct us_data *us, unsigned int pipe,
  35                 u8 request, u8 requesttype, u16 value, u16 index,
  36                 void *data, u16 size, int timeout);
  37 extern int usb_stor_clear_halt(struct us_data *us, unsigned int pipe);
  38 extern int usb_stor_bulk_transfer_buf(struct us_data *us, unsigned int pipe,
  39                 void *buf, unsigned int length, unsigned int *act_len);
  40 extern int usb_stor_bulk_transfer_sg(struct us_data *us, unsigned int pipe,
  41                 void *buf, unsigned int length, int use_sg, int *residual);
  42 extern int usb_stor_bulk_srb(struct us_data *us, unsigned int pipe,
  43                 struct scsi_cmnd *srb);
  44 extern int usb_stor_port_reset(struct us_data *us);
  45
  46 /* Protocol handling routines */
  47 enum xfer_buf_dir       {TO_XFER_BUF, FROM_XFER_BUF};
  48 extern unsigned int usb_stor_access_xfer_buf(struct us_data*,
  49         unsigned char *buffer, unsigned int buflen, struct scsi_cmnd *srb,
  50         struct scatterlist **, unsigned int *offset, enum xfer_buf_dir dir);
  51 extern void usb_stor_set_xfer_buf(struct us_data*, unsigned char *buffer,
  52         unsigned int buflen, struct scsi_cmnd *srb,
  53         unsigned int dir);
  54
  55 /*
  56  * ENE scsi function
  57  */
  58 extern void ENE_stor_invoke_transport(struct scsi_cmnd *, struct us_data *);
  59 extern int ENE_InitMedia(struct us_data *);
  60 extern int ENE_SMInit(struct us_data *);
  61 extern int ENE_SendScsiCmd(struct us_data*, BYTE, void*, int);
  62 extern int ENE_LoadBinCode(struct us_data*, BYTE);
  63 extern int ene_read_byte(struct us_data*, WORD index, void *buf);
  64 extern int ENE_Read_Data(struct us_data*, void *buf, unsigned int length);
  65 extern int ENE_Write_Data(struct us_data*, void *buf, unsigned int length);
  66 extern void BuildSenseBuffer(struct scsi_cmnd *, int);
  67
  68 /*
  69  * ENE scsi function
  70  */
  71 extern int SM_SCSIIrp(struct us_data *us, struct scsi_cmnd *srb);
  72
  73 #endif