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// SPDX-License-Identifier: GPL-2.0-only
// SPDX-FileCopyrightText: © 2021 Ahmad Fatoum <a.fatoum@pengutronix.de>, Pengutronix
#include <command.h>
#include <common.h>
#include <complete.h>
#include <driver.h>
#include <getopt.h>
static int do_devunbind(int argc, char *argv[])
{
bool unregister = false;
struct device_d *dev;
int ret = COMMAND_SUCCESS, i, opt;
while ((opt = getopt(argc, argv, "fl")) > 0) {
switch (opt) {
case 'f':
unregister = true;
break;
case 'l':
list_for_each_entry(dev, &active_device_list, active) {
BUG_ON(!dev->driver);
if (dev->bus->remove)
printf("%pS(%s, %s)\n", dev->bus->remove,
dev->driver->name, dev_name(dev));
}
return 0;
default:
return COMMAND_ERROR_USAGE;
}
}
if (!argv[optind])
return COMMAND_ERROR_USAGE;
for (i = optind; i < argc; i++) {
dev = get_device_by_name(argv[i]);
if (!dev) {
printf("skipping missing %s\n", argv[i]);
ret = -ENODEV;
continue;
}
if (unregister) {
unregister_device(dev);
continue;
}
if (!dev->driver || !dev->bus->remove) {
printf("skipping unbound %s\n", argv[i]);
ret = COMMAND_ERROR;
continue;
}
dev->bus->remove(dev);
dev->driver = NULL;
list_del(&dev->active);
}
return ret;
}
BAREBOX_CMD_HELP_START(devunbind)
BAREBOX_CMD_HELP_TEXT("Debugging aid to unbind device from driver at runtime")
BAREBOX_CMD_HELP_TEXT("")
BAREBOX_CMD_HELP_TEXT("Options:")
BAREBOX_CMD_HELP_OPT ("-f", "unbind driver and force removal of device and children")
BAREBOX_CMD_HELP_OPT ("-l", "list remove callbacks in shutdown order")
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(devunbind)
.cmd = do_devunbind,
BAREBOX_CMD_DESC("unbind device(s) from driver")
BAREBOX_CMD_OPTS("[-fl] DEVICES..")
BAREBOX_CMD_GROUP(CMD_GRP_INFO)
BAREBOX_CMD_HELP(cmd_devunbind_help)
BAREBOX_CMD_COMPLETE(device_complete)
BAREBOX_CMD_END
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