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usb:gadget: USB Mass Storage Gadget support

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This patch adds the USB Mass Storage Gadget to u-boot
New command called "ums" is implemented to provide access
to on-device embedded persistent memory.

USB Mass Storage is supposed to work on top of the USB
Gadget framework

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
CC: Marek Vasut <marek.vasut@gmail.com>
This commit is contained in:
Lukasz Majewski
2013-03-05 12:10:17 +01:00
committed by Marek Vasut
parent b4d36f6809
commit b528f71394
4 changed files with 148 additions and 0 deletions
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55
include/usb_mass_storage.h Normal file
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/*
* Copyright (C) 2011 Samsung Electrnoics
* Lukasz Majewski <l.majewski@samsung.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* aloong with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __USB_MASS_STORAGE_H__
#define __USB_MASS_STORAGE_H__
#define SECTOR_SIZE 0x200
#include <mmc.h>
struct ums_device {
struct mmc *mmc;
int dev_num;
int offset;
int part_size;
};
struct ums_board_info {
int (*read_sector)(struct ums_device *ums_dev,
ulong start, lbaint_t blkcnt, void *buf);
int (*write_sector)(struct ums_device *ums_dev,
ulong start, lbaint_t blkcnt, const void *buf);
void (*get_capacity)(struct ums_device *ums_dev,
long long int *capacity);
const char *name;
struct ums_device ums_dev;
};
extern void board_usb_init(void);
extern int fsg_init(struct ums_board_info *);
extern void fsg_cleanup(void);
extern struct ums_board_info *board_ums_init(unsigned int,
unsigned int, unsigned int);
extern int usb_gadget_handle_interrupts(void);
extern int fsg_main_thread(void *);
#endif /* __USB_MASS_STORAGE_H__ */