112 lines
4.3 KiB
C
112 lines
4.3 KiB
C
#ifndef _TRANSPORT_H_
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#define _TRANSPORT_H_
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#include <linux/blkdev.h>
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/* Bulk only data structures */
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/* command block wrapper */
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struct bulk_cb_wrap {
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__le32 Signature; /* contains 'USBC' */
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__u32 Tag; /* unique per command id */
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__le32 DataTransferLength; /* size of data */
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__u8 Flags; /* direction in bit 0 */
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__u8 Lun; /* LUN normally 0 */
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__u8 Length; /* of of the CDB */
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__u8 CDB[16]; /* max command */
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};
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#define US_BULK_CB_WRAP_LEN 31
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#define US_BULK_CB_SIGN 0x43425355 /*spells out USBC */
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#define US_BULK_FLAG_IN 1
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#define US_BULK_FLAG_OUT 0
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/* command status wrapper */
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struct bulk_cs_wrap {
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__le32 Signature; /* should = 'USBS' */
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__u32 Tag; /* same as original command */
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__le32 Residue; /* amount not transferred */
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__u8 Status; /* see below */
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__u8 Filler[18];
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};
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#define US_BULK_CS_WRAP_LEN 13
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#define US_BULK_CS_SIGN 0x53425355 /* spells out 'USBS' */
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#define US_BULK_STAT_OK 0
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#define US_BULK_STAT_FAIL 1
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#define US_BULK_STAT_PHASE 2
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/* bulk-only class specific requests */
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#define US_BULK_RESET_REQUEST 0xff
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#define US_BULK_GET_MAX_LUN 0xfe
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/* usb_stor_bulk_transfer_xxx() return codes, in order of severity */
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#define USB_STOR_XFER_GOOD 0 /* good transfer */
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#define USB_STOR_XFER_SHORT 1 /* transferred less than expected */
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#define USB_STOR_XFER_STALLED 2 /* endpoint stalled */
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#define USB_STOR_XFER_LONG 3 /* device tried to send too much */
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#define USB_STOR_XFER_ERROR 4 /* transfer died in the middle */
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/* Transport return codes */
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#define USB_STOR_TRANSPORT_GOOD 0 /* Transport good, command good */
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#define USB_STOR_TRANSPORT_FAILED 1 /* Transport good, command failed */
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#define USB_STOR_TRANSPORT_NO_SENSE 2 /* Command failed, no auto-sense */
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#define USB_STOR_TRANSPORT_ERROR 3 /* Transport bad (i.e. device dead) */
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/*
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* We used to have USB_STOR_XFER_ABORTED and USB_STOR_TRANSPORT_ABORTED
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* return codes. But now the transport and low-level transfer routines
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* treat an abort as just another error (-ENOENT for a cancelled URB).
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* It is up to the invoke_transport() function to test for aborts and
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* distinguish them from genuine communication errors.
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*/
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/* CBI accept device specific command */
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#define US_CBI_ADSC 0
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extern int usb_stor_Bulk_transport(struct scsi_cmnd *, struct us_data*);
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extern int usb_stor_Bulk_max_lun(struct us_data *);
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extern int usb_stor_Bulk_reset(struct us_data *);
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extern void usb_stor_print_cmd(struct scsi_cmnd *);
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extern void usb_stor_invoke_transport(struct scsi_cmnd *, struct us_data*);
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extern void usb_stor_stop_transport(struct us_data *);
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extern int usb_stor_control_msg(struct us_data *us, unsigned int pipe,
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u8 request, u8 requesttype, u16 value, u16 index,
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void *data, u16 size, int timeout);
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extern int usb_stor_clear_halt(struct us_data *us, unsigned int pipe);
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extern int usb_stor_bulk_transfer_buf(struct us_data *us, unsigned int pipe,
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void *buf, unsigned int length, unsigned int *act_len);
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extern int usb_stor_bulk_transfer_sg(struct us_data *us, unsigned int pipe,
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void *buf, unsigned int length, int use_sg, int *residual);
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extern int usb_stor_bulk_srb(struct us_data *us, unsigned int pipe,
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struct scsi_cmnd *srb);
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extern int usb_stor_port_reset(struct us_data *us);
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/* Protocol handling routines */
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enum xfer_buf_dir {TO_XFER_BUF, FROM_XFER_BUF};
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extern unsigned int usb_stor_access_xfer_buf(struct us_data*,
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unsigned char *buffer, unsigned int buflen, struct scsi_cmnd *srb,
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struct scatterlist **, unsigned int *offset, enum xfer_buf_dir dir);
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extern void usb_stor_set_xfer_buf(struct us_data*, unsigned char *buffer,
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unsigned int buflen, struct scsi_cmnd *srb,
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unsigned int dir);
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/*
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* ENE scsi function
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*/
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extern void ENE_stor_invoke_transport(struct scsi_cmnd *, struct us_data *);
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extern int ENE_InitMedia(struct us_data *);
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extern int ENE_SMInit(struct us_data *);
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extern int ENE_SendScsiCmd(struct us_data*, BYTE, void*, int);
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extern int ENE_LoadBinCode(struct us_data*, BYTE);
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extern int ENE_Read_BYTE(struct us_data*, WORD index, void *buf);
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extern int ENE_Read_Data(struct us_data*, void *buf, unsigned int length);
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extern int ENE_Write_Data(struct us_data*, void *buf, unsigned int length);
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extern void BuildSenseBuffer(struct scsi_cmnd *, int);
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/*
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* ENE scsi function
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*/
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extern int SM_SCSIIrp(struct us_data *us, struct scsi_cmnd *srb);
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#endif
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