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/*
* This file is part of the libpayload project.
*
* Copyright (C) 2008-2010 coresystems GmbH
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef __USBMSC_H
#define __USBMSC_H
typedef struct {
unsigned int blocksize;
unsigned int numblocks;
endpoint_t *bulk_in;
endpoint_t *bulk_out;
u8 quirks : 7;
u8 usbdisk_created : 1;
s8 ready;
u8 lun;
u8 num_luns;
void *data; /* For use by consumers of libpayload. */
} usbmsc_inst_t;
/* Possible values for quirks field. */
enum {
/* Don't check for LUNs (force assumption that there's only one LUN). */
USB_MSC_QUIRK_NO_LUNS = 1 << 0,
/* Never do a BULK_ONLY reset, just continue. This means that the device
cannot recover from phase errors and won't detach automatically for
unrecoverable errors. Do not use unless you have to. */
USB_MSC_QUIRK_NO_RESET = 1 << 1,
};
/* Possible values for ready field. */
enum {
USB_MSC_DETACHED = -1, /* Disk detached or out to lunch. */
USB_MSC_NOT_READY = 0, /* Disk not ready yet -- empty card reader */
USB_MSC_READY = 1, /* Disk ready to communicate. */
};
#define MSC_INST(dev) ((usbmsc_inst_t*)(dev)->data)
typedef enum { cbw_direction_data_in = 0x80, cbw_direction_data_out = 0
} cbw_direction;
int readwrite_blocks_512 (usbdev_t *dev, int start, int n, cbw_direction dir, u8 *buf);
int readwrite_blocks (usbdev_t *dev, int start, int n, cbw_direction dir, u8 *buf);
/* Force a device to enumerate as MSC, without checking class/protocol types.
It must still have a bulk endpoint pair and respond to MSC commands. */
void usb_msc_force_init (usbdev_t *dev, u32 quirks);
#endif
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