1 #ifndef _TRANSPORT_H_ 2 #define _TRANSPORT_H_ 3 4 #include <linux/blkdev.h> 5 6 /* Bulk only data structures */ 7 8 /* command block wrapper */ 9 struct bulk_cb_wrap { 10 __le32 Signature; /* contains 'USBC' */ 11 __u32 Tag; /* unique per command id */ 12 __le32 DataTransferLength; /* size of data */ 13 __u8 Flags; /* direction in bit 0 */ 14 __u8 Lun; /* LUN normally 0 */ 15 __u8 Length; /* of of the CDB */ 16 __u8 CDB[16]; /* max command */ 17 }; 18 19 #define US_BULK_CB_WRAP_LEN 31 20 #define US_BULK_CB_SIGN 0x43425355 /*spells out USBC */ 21 #define US_BULK_FLAG_IN 1 22 #define US_BULK_FLAG_OUT 0 23 24 /* command status wrapper */ 25 struct bulk_cs_wrap { 26 __le32 Signature; /* should = 'USBS' */ 27 __u32 Tag; /* same as original command */ 28 __le32 Residue; /* amount not transferred */ 29 __u8 Status; /* see below */ 30 __u8 Filler[18]; 31 }; 32 33 #define US_BULK_CS_WRAP_LEN 13 34 #define US_BULK_CS_SIGN 0x53425355 /* spells out 'USBS' */ 35 #define US_BULK_STAT_OK 0 36 #define US_BULK_STAT_FAIL 1 37 #define US_BULK_STAT_PHASE 2 38 39 /* bulk-only class specific requests */ 40 #define US_BULK_RESET_REQUEST 0xff 41 #define US_BULK_GET_MAX_LUN 0xfe 42 43 /* usb_stor_bulk_transfer_xxx() return codes, in order of severity */ 44 #define USB_STOR_XFER_GOOD 0 /* good transfer */ 45 #define USB_STOR_XFER_SHORT 1 /* transferred less than expected */ 46 #define USB_STOR_XFER_STALLED 2 /* endpoint stalled */ 47 #define USB_STOR_XFER_LONG 3 /* device tried to send too much */ 48 #define USB_STOR_XFER_ERROR 4 /* transfer died in the middle */ 49 50 /* Transport return codes */ 51 #define USB_STOR_TRANSPORT_GOOD 0 /* Transport good, command good */ 52 #define USB_STOR_TRANSPORT_FAILED 1 /* Transport good, command failed */ 53 #define USB_STOR_TRANSPORT_NO_SENSE 2 /* Command failed, no auto-sense */ 54 #define USB_STOR_TRANSPORT_ERROR 3 /* Transport bad (i.e. device dead) */ 55 56 /* 57 * We used to have USB_STOR_XFER_ABORTED and USB_STOR_TRANSPORT_ABORTED 58 * return codes. But now the transport and low-level transfer routines 59 * treat an abort as just another error (-ENOENT for a cancelled URB). 60 * It is up to the invoke_transport() function to test for aborts and 61 * distinguish them from genuine communication errors. 62 */ 63 64 /* CBI accept device specific command */ 65 #define US_CBI_ADSC 0 66 extern int usb_stor_Bulk_transport(struct scsi_cmnd *, struct us_data*); 67 extern int usb_stor_Bulk_max_lun(struct us_data *); 68 extern int usb_stor_Bulk_reset(struct us_data *); 69 extern void usb_stor_print_cmd(struct scsi_cmnd *); 70 extern void usb_stor_invoke_transport(struct scsi_cmnd *, struct us_data*); 71 extern void usb_stor_stop_transport(struct us_data *); 72 extern int usb_stor_control_msg(struct us_data *us, unsigned int pipe, 73 u8 request, u8 requesttype, u16 value, u16 index, 74 void *data, u16 size, int timeout); 75 extern int usb_stor_clear_halt(struct us_data *us, unsigned int pipe); 76 extern int usb_stor_bulk_transfer_buf(struct us_data *us, unsigned int pipe, 77 void *buf, unsigned int length, unsigned int *act_len); 78 extern int usb_stor_bulk_transfer_sg(struct us_data *us, unsigned int pipe, 79 void *buf, unsigned int length, int use_sg, int *residual); 80 extern int usb_stor_bulk_srb(struct us_data *us, unsigned int pipe, 81 struct scsi_cmnd *srb); 82 extern int usb_stor_port_reset(struct us_data *us); 83 84 /* Protocol handling routines */ 85 enum xfer_buf_dir {TO_XFER_BUF, FROM_XFER_BUF}; 86 extern unsigned int usb_stor_access_xfer_buf(struct us_data*, 87 unsigned char *buffer, unsigned int buflen, struct scsi_cmnd *srb, 88 struct scatterlist **, unsigned int *offset, enum xfer_buf_dir dir); 89 extern void usb_stor_set_xfer_buf(struct us_data*, unsigned char *buffer, 90 unsigned int buflen, struct scsi_cmnd *srb, 91 unsigned int dir); 92 93 /* 94 * ENE scsi function 95 */ 96 extern void ENE_stor_invoke_transport(struct scsi_cmnd *, struct us_data *); 97 extern int ENE_InitMedia(struct us_data *); 98 extern int ENE_SMInit(struct us_data *); 99 extern int ENE_SendScsiCmd(struct us_data*, BYTE, void*, int); 100 extern int ENE_LoadBinCode(struct us_data*, BYTE); 101 extern int ENE_Read_BYTE(struct us_data*, WORD index, void *buf); 102 extern int ENE_Read_Data(struct us_data*, void *buf, unsigned int length); 103 extern int ENE_Write_Data(struct us_data*, void *buf, unsigned int length); 104 extern void BuildSenseBuffer(struct scsi_cmnd *, int); 105 106 /* 107 * ENE scsi function 108 */ 109 extern int SM_SCSIIrp(struct us_data *us, struct scsi_cmnd *srb); 110 111 #endif 112