97 lines
2.8 KiB
C
97 lines
2.8 KiB
C
/*
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* Most of this source has been derived from the Linux and
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* U-Boot USB Mass Storage driver implementations.
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*
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* Adapted for barebox:
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* Copyright (c) 2011, AMK Drives & Controls Ltd.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*/
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#ifndef _STORAGE_USB_H_
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#define _STORAGE_USB_H_
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#include <usb/usb.h>
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#include <ata.h>
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#include <scsi.h>
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#include <linux/list.h>
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#ifdef USB_STOR_DEBUG
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#define US_DEBUGP(fmt, args...) printf(fmt , ##args)
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#else
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#define US_DEBUGP(fmt, args...)
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#endif
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/* some defines, similar to ch9.h */
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#define USB_EP_NUM(epd) \
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((epd)->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK)
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#define USB_EP_IS_DIR_IN(epd) \
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(((epd)->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN)
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#define USB_EP_IS_XFER_BULK(epd) \
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(((epd)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == \
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USB_ENDPOINT_XFER_BULK)
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#define USB_EP_IS_XFER_INT(epd) \
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(((epd)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) == \
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USB_ENDPOINT_XFER_INT)
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#define USB_EP_IS_INT_IN(epd) \
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(USB_EP_IS_XFER_INT(epd) && USB_EP_IS_DIR_IN(epd))
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struct us_data;
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typedef int (*trans_cmnd)(ccb *cb, struct us_data *data);
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typedef int (*trans_reset)(struct us_data *data);
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/* one us_data object allocated per usb storage device */
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struct us_data {
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struct usb_device *pusb_dev; /* this usb_device */
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unsigned int flags; /* from filter */
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unsigned char send_bulk_ep; /* used endpoints */
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unsigned char recv_bulk_ep;
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unsigned char recv_intr_ep;
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unsigned char ifnum; /* interface number */
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unsigned char subclass;
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unsigned char protocol;
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unsigned char max_lun;
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unsigned char ep_bInterval;
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char *transport_name;
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trans_cmnd transport; /* transport function */
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trans_reset transport_reset;/* transport device reset */
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/* SCSI interfaces */
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ccb *srb; /* current srb */
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};
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/* one us_blk_dev object allocated per LUN */
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struct us_blk_dev {
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struct us_data *us; /* LUN's enclosing dev */
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struct device_d dev; /* intf to generic driver */
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struct ata_interface ata_if; /* intf to "disk" driver */
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uint64_t blknum; /* capacity */
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unsigned long blksz; /* block size */
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unsigned char lun; /* the LUN of this blk dev */
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struct list_head list; /* siblings */
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};
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#endif
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