LXR linux/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
  29extern int usb_stor_Bulk_transport(struct scsi_cmnd *, struct us_data*);
  30extern int usb_stor_Bulk_max_lun(struct us_data *);
  31extern int usb_stor_Bulk_reset(struct us_data *);
  32extern void usb_stor_print_cmd(struct scsi_cmnd *);
  33extern void usb_stor_invoke_transport(struct scsi_cmnd *, struct us_data*);
  34extern void usb_stor_stop_transport(struct us_data *);
  35extern int usb_stor_control_msg(struct us_data *us, unsigned int pipe,
  36                u8 request, u8 requesttype, u16 value, u16 index,
  37                void *data, u16 size, int timeout);
  38extern int usb_stor_clear_halt(struct us_data *us, unsigned int pipe);
  39extern int usb_stor_bulk_transfer_buf(struct us_data *us, unsigned int pipe,
  40                void *buf, unsigned int length, unsigned int *act_len);
  41extern int usb_stor_bulk_transfer_sg(struct us_data *us, unsigned int pipe,
  42                void *buf, unsigned int length, int use_sg, int *residual);
  43extern int usb_stor_bulk_srb(struct us_data *us, unsigned int pipe,
  44                struct scsi_cmnd *srb);
  45extern int usb_stor_port_reset(struct us_data *us);
  46
  47/* Protocol handling routines */
  48enum xfer_buf_dir       {TO_XFER_BUF, FROM_XFER_BUF};
  49extern unsigned int usb_stor_access_xfer_buf(struct us_data*,
  50        unsigned char *buffer, unsigned int buflen, struct scsi_cmnd *srb,
  51        struct scatterlist **, unsigned int *offset, enum xfer_buf_dir dir);
  52extern void usb_stor_set_xfer_buf(struct us_data*, unsigned char *buffer,
  53        unsigned int buflen, struct scsi_cmnd *srb,
  54        unsigned int dir);
  55
  56/*
  57 * ENE scsi function
  58 */
  59extern void ENE_stor_invoke_transport(struct scsi_cmnd *, struct us_data *);
  60extern int ENE_InitMedia(struct us_data *);
  61extern int ENE_SMInit(struct us_data *);
  62extern int ENE_SendScsiCmd(struct us_data*, BYTE, void*, int);
  63extern int ENE_LoadBinCode(struct us_data*, BYTE);
  64extern int ENE_Read_BYTE(struct us_data*, WORD index, void *buf);
  65extern int ENE_Read_Data(struct us_data*, void *buf, unsigned int length);
  66extern int ENE_Write_Data(struct us_data*, void *buf, unsigned int length);
  67extern void BuildSenseBuffer(struct scsi_cmnd *, int);
  68
  69/*
  70 * ENE scsi function
  71 */
  72extern int SM_SCSIIrp(struct us_data *us, struct scsi_cmnd *srb);
  73
  74#endif
  75