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/*
* usbserial.c - usb serial gadget command
*
* Copyright (c) 2011 Eric Bénard <eric@eukrea.com>, Eukréa Electromatique
* based on dfu.c which is :
* Copyright (c) 2009 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* 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.
*
*/
#include <common.h>
#include <command.h>
#include <environment.h>
#include <errno.h>
#include <malloc.h>
#include <getopt.h>
#include <fs.h>
#include <xfuncs.h>
#include <usb/usbserial.h>
#include <usb/dfu.h>
#include <usb/gadget-multi.h>
static int do_usbgadget(int argc, char *argv[])
{
int opt, ret;
int acm = 1, create_serial = 0, fastboot_set = 0, fastboot_export_bbu = 0;
const char *fastboot_opts = NULL, *dfu_opts = NULL;
struct f_multi_opts *opts;
while ((opt = getopt(argc, argv, "asdA::D:b")) > 0) {
switch (opt) {
case 'a':
acm = 1;
create_serial = 1;
break;
case 's':
acm = 0;
create_serial = 1;
break;
case 'D':
dfu_opts = optarg;
break;
case 'A':
fastboot_opts = optarg;
fastboot_set = 1;
break;
case 'b':
fastboot_export_bbu = 1;
break;
case 'd':
usb_multi_unregister();
return 0;
default:
return -EINVAL;
}
}
if (fastboot_set && !fastboot_opts)
fastboot_opts = getenv("global.usbgadget.fastboot_function");
if (!dfu_opts && !fastboot_opts && !create_serial)
return COMMAND_ERROR_USAGE;
/*
* Creating a gadget with both DFU and Fastboot doesn't work.
* Both client tools seem to assume that the device only has
* a single configuration
*/
if (fastboot_opts && dfu_opts) {
printf("Only one of Fastboot and DFU allowed\n");
return -EINVAL;
}
opts = xzalloc(sizeof(*opts));
opts->release = usb_multi_opts_release;
if (fastboot_opts) {
opts->fastboot_opts.files = file_list_parse(fastboot_opts);
if (IS_ERR(opts->fastboot_opts.files))
goto err_parse;
opts->fastboot_opts.export_bbu = fastboot_export_bbu;
}
if (dfu_opts) {
opts->dfu_opts.files = file_list_parse(dfu_opts);
if (IS_ERR(opts->dfu_opts.files))
goto err_parse;
}
if (create_serial) {
opts->create_acm = acm;
}
ret = usb_multi_register(opts);
if (ret)
usb_multi_opts_release(opts);
return ret;
err_parse:
printf("Cannot parse file list \"%s\": %s\n", fastboot_opts, strerrorp(opts->fastboot_opts.files));
free(opts);
return 1;
}
BAREBOX_CMD_HELP_START(usbgadget)
BAREBOX_CMD_HELP_TEXT("Enable / disable a USB composite gadget on the USB device interface.")
BAREBOX_CMD_HELP_TEXT("")
BAREBOX_CMD_HELP_TEXT("Options:")
BAREBOX_CMD_HELP_OPT ("-a\t", "Create CDC ACM function")
BAREBOX_CMD_HELP_OPT ("-s\t", "Create Generic Serial function")
BAREBOX_CMD_HELP_OPT ("-A <desc>", "Create Android Fastboot function. If 'desc' is not provided, "
"try to use 'global.usbgadget.fastboot_function' variable.")
BAREBOX_CMD_HELP_OPT ("-b\t", "include registered barebox update handlers (fastboot specific)")
BAREBOX_CMD_HELP_OPT ("-D <desc>", "Create DFU function")
BAREBOX_CMD_HELP_OPT ("-d\t", "Disable the currently running gadget")
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(usbgadget)
.cmd = do_usbgadget,
BAREBOX_CMD_DESC("Create USB Gadget multifunction device")
BAREBOX_CMD_OPTS("[-asdAD]")
BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP)
BAREBOX_CMD_HELP(cmd_usbgadget_help)
BAREBOX_CMD_END
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