mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 00:47:26 +00:00
b528f71394
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>
86 lines
2.1 KiB
C
86 lines
2.1 KiB
C
/*
|
|
* Copyright (C) 2011 Samsung Electronics
|
|
* 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
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <errno.h>
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <g_dnl.h>
|
|
#include <usb_mass_storage.h>
|
|
|
|
int do_usb_mass_storage(cmd_tbl_t *cmdtp, int flag,
|
|
int argc, char * const argv[])
|
|
{
|
|
char *ep;
|
|
unsigned int dev_num = 0, offset = 0, part_size = 0;
|
|
int rc;
|
|
|
|
struct ums_board_info *ums_info;
|
|
static char *s = "ums";
|
|
|
|
if (argc < 2) {
|
|
printf("usage: ums <dev> - e.g. ums 0\n");
|
|
return 0;
|
|
}
|
|
|
|
dev_num = (int)simple_strtoul(argv[1], &ep, 16);
|
|
|
|
if (dev_num) {
|
|
puts("\nSet eMMC device to 0! - e.g. ums 0\n");
|
|
goto fail;
|
|
}
|
|
|
|
board_usb_init();
|
|
ums_info = board_ums_init(dev_num, offset, part_size);
|
|
|
|
if (!ums_info) {
|
|
printf("MMC: %d -> NOT available\n", dev_num);
|
|
goto fail;
|
|
}
|
|
rc = fsg_init(ums_info);
|
|
if (rc) {
|
|
printf("cmd ums: fsg_init failed\n");
|
|
goto fail;
|
|
}
|
|
|
|
g_dnl_register(s);
|
|
|
|
while (1) {
|
|
/* Handle control-c and timeouts */
|
|
if (ctrlc()) {
|
|
printf("The remote end did not respond in time.\n");
|
|
goto exit;
|
|
}
|
|
usb_gadget_handle_interrupts();
|
|
/* Check if USB cable has been detached */
|
|
if (fsg_main_thread(NULL) == EIO)
|
|
goto exit;
|
|
}
|
|
exit:
|
|
g_dnl_unregister();
|
|
return 0;
|
|
|
|
fail:
|
|
return -1;
|
|
}
|
|
|
|
U_BOOT_CMD(ums, CONFIG_SYS_MAXARGS, 1, do_usb_mass_storage,
|
|
"Use the UMS [User Mass Storage]",
|
|
"ums - User Mass Storage Gadget"
|
|
);
|