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1/* Driver for Microtech DPCM-USB CompactFlash/SmartMedia reader
2 *
3 * DPCM driver v0.1:
4 *
5 * First release
6 *
7 * Current development and maintenance by:
8 * (c) 2000 Brian Webb (webbb@earthlink.net)
9 *
10 * This device contains both a CompactFlash card reader, which
11 * uses the Control/Bulk w/o Interrupt protocol and
12 * a SmartMedia card reader that uses the same protocol
13 * as the SDDR09.
14 *
15 * This program is free software; you can redistribute it and/or modify it
16 * under the terms of the GNU General Public License as published by the
17 * Free Software Foundation; either version 2, or (at your option) any
18 * later version.
19 *
20 * This program is distributed in the hope that it will be useful, but
21 * WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 * General Public License for more details.
24 *
25 * You should have received a copy of the GNU General Public License along
26 * with this program; if not, write to the Free Software Foundation, Inc.,
27 * 675 Mass Ave, Cambridge, MA 02139, USA.
28 */
29
30#include <scsi/scsi.h>
31#include <scsi/scsi_cmnd.h>
32#include <scsi/scsi_device.h>
33
34#include "usb.h"
35#include "transport.h"
36#include "protocol.h"
37#include "debug.h"
38#include "dpcm.h"
39#include "sddr09.h"
40
41/*
42 * Transport for the Microtech DPCM-USB
43 *
44 */
45int dpcm_transport(struct scsi_cmnd *srb, struct us_data *us)
46{
47 int ret;
48
49 if (srb == NULL)
50 return USB_STOR_TRANSPORT_ERROR;
51
52 US_DEBUGP("dpcm_transport: LUN=%d\n", srb->device->lun);
53
54 switch (srb->device->lun) {
55 case 0:
56
57 /*
58 * LUN 0 corresponds to the CompactFlash card reader.
59 */
60 ret = usb_stor_CB_transport(srb, us);
61 break;
62
63#ifdef CONFIG_USB_STORAGE_SDDR09
64 case 1:
65
66 /*
67 * LUN 1 corresponds to the SmartMedia card reader.
68 */
69
70 /*
71 * Set the LUN to 0 (just in case).
72 */
73 srb->device->lun = 0; us->srb->device->lun = 0;
74 ret = sddr09_transport(srb, us);
75 srb->device->lun = 1; us->srb->device->lun = 1;
76 break;
77
78#endif
79
80 default:
81 US_DEBUGP("dpcm_transport: Invalid LUN %d\n", srb->device->lun);
82 ret = USB_STOR_TRANSPORT_ERROR;
83 break;
84 }
85 return ret;
86}