mirror of https://gitee.com/openkylin/linux.git
90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
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/* Driver for Microtech DPCM-USB CompactFlash/SmartMedia reader
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*
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* $Id: dpcm.c,v 1.4 2001/06/11 02:54:25 mdharm Exp $
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*
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* DPCM driver v0.1:
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*
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* First release
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*
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* Current development and maintenance by:
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* (c) 2000 Brian Webb (webbb@earthlink.net)
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*
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* This device contains both a CompactFlash card reader, which
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* uses the Control/Bulk w/o Interrupt protocol and
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* a SmartMedia card reader that uses the same protocol
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* as the SDDR09.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/config.h>
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#include <scsi/scsi.h>
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#include <scsi/scsi_cmnd.h>
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#include <scsi/scsi_device.h>
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#include "usb.h"
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#include "transport.h"
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#include "protocol.h"
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#include "debug.h"
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#include "dpcm.h"
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#include "sddr09.h"
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/*
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* Transport for the Microtech DPCM-USB
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*
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*/
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int dpcm_transport(struct scsi_cmnd *srb, struct us_data *us)
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{
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int ret;
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if(srb == NULL)
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return USB_STOR_TRANSPORT_ERROR;
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US_DEBUGP("dpcm_transport: LUN=%d\n", srb->device->lun);
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switch(srb->device->lun) {
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case 0:
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/*
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* LUN 0 corresponds to the CompactFlash card reader.
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*/
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ret = usb_stor_CB_transport(srb, us);
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break;
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#ifdef CONFIG_USB_STORAGE_SDDR09
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case 1:
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/*
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* LUN 1 corresponds to the SmartMedia card reader.
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*/
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/*
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* Set the LUN to 0 (just in case).
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*/
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srb->device->lun = 0; us->srb->device->lun = 0;
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ret = sddr09_transport(srb, us);
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srb->device->lun = 1; us->srb->device->lun = 1;
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break;
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#endif
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default:
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US_DEBUGP("dpcm_transport: Invalid LUN %d\n", srb->device->lun);
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ret = USB_STOR_TRANSPORT_ERROR;
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break;
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}
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return ret;
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}
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