| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Driver for Microtek Scanmaker X6 USB scanner and possibly others. |
| * |
| * (C) Copyright 2000 John Fremlin <vii@penguinpowered.com> |
| * (C) Copyright 2000 Oliver Neukum <Oliver.Neukum@lrz.uni-muenchen.de> |
| * |
| * See microtek.c for history |
| * |
| */ |
| |
| typedef void (*mts_scsi_cmnd_callback)(struct scsi_cmnd *); |
| |
| |
| struct mts_transfer_context |
| { |
| struct mts_desc *instance; |
| mts_scsi_cmnd_callback final_callback; |
| struct scsi_cmnd *srb; |
| |
| void *data; |
| unsigned data_length; |
| int data_pipe; |
| int fragment; |
| |
| u8 *scsi_status; /* status returned from ep_response after command completion */ |
| }; |
| |
| |
| struct mts_desc { |
| struct mts_desc *next; |
| struct mts_desc *prev; |
| |
| struct usb_device *usb_dev; |
| struct usb_interface *usb_intf; |
| |
| /* Endpoint addresses */ |
| u8 ep_out; |
| u8 ep_response; |
| u8 ep_image; |
| |
| struct Scsi_Host *host; |
| |
| struct urb *urb; |
| struct mts_transfer_context context; |
| }; |
| |
| |
| #define MTS_EP_OUT 0x1 |
| #define MTS_EP_RESPONSE 0x2 |
| #define MTS_EP_IMAGE 0x3 |
| #define MTS_EP_TOTAL 0x3 |
| |
| #define MTS_SCSI_ERR_MASK ~0x3fu |
| |