1 /* 2 * Driver for Microtek Scanmaker X6 USB scanner and possibly others. 3 * 4 * (C) Copyright 2000 John Fremlin <vii@penguinpowered.com> 5 * (C) Copyright 2000 Oliver Neukum <Oliver.Neukum@lrz.uni-muenchen.de> 6 * 7 * See microtek.c for history 8 * 9 */ 10 11 typedef void (*mts_scsi_cmnd_callback)(struct scsi_cmnd *); 12 13 14 struct mts_transfer_context 15 { 16 struct mts_desc *instance; 17 mts_scsi_cmnd_callback final_callback; 18 struct scsi_cmnd *srb; 19 20 void *data; 21 unsigned data_length; 22 int data_pipe; 23 int fragment; 24 25 u8 *scsi_status; /* status returned from ep_response after command completion */ 26 }; 27 28 29 struct mts_desc { 30 struct mts_desc *next; 31 struct mts_desc *prev; 32 33 struct usb_device *usb_dev; 34 struct usb_interface *usb_intf; 35 36 /* Endpoint addresses */ 37 u8 ep_out; 38 u8 ep_response; 39 u8 ep_image; 40 41 struct Scsi_Host *host; 42 43 struct urb *urb; 44 struct mts_transfer_context context; 45 }; 46 47 48 #define MTS_EP_OUT 0x1 49 #define MTS_EP_RESPONSE 0x2 50 #define MTS_EP_IMAGE 0x3 51 #define MTS_EP_TOTAL 0x3 52 53 #define MTS_SCSI_ERR_MASK ~0x3fu 54 55