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// SPDX-License-Identifier: GPL-2.0-only
// SPDX-FileCopyrightText: © 2011 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
/* usb.c - rescan for USB devices */
#include <common.h>
#include <command.h>
#include <complete.h>
#include <usb/usb.h>
#include <getopt.h>
/* shows the device tree recursively */
static void usb_show_tree_graph(struct usb_device *dev, char *pre)
{
int i, index;
int has_child, last_child;
index = strlen(pre);
printf(" %s", pre);
/* check if the device has connected children */
has_child = 0;
for (i = 0; i < dev->maxchild; i++) {
if (dev->children[i] != NULL)
has_child = 1;
}
/* check if we are the last one */
last_child = 1;
if (dev->parent) {
for (i = 0; i < dev->parent->maxchild; i++) {
if (dev->parent->children[i])
last_child = 0;
if (dev->parent->children[i] == dev)
last_child = 1;
} /* for all children of the parent */
printf("\b+-");
/* correct last child */
if (last_child)
pre[index - 1] = ' ';
} else {
/* if not root hub */
printf(" ");
}
printf("%d ", dev->devnum);
pre[index++] = ' ';
pre[index++] = has_child ? '|' : ' ';
pre[index] = 0;
printf("ID %04x:%04x\n", dev->descriptor->idVendor, dev->descriptor->idProduct);
if (strlen(dev->mf) || strlen(dev->prod) || strlen(dev->serial))
printf(" %s %s %s %s\n", pre, dev->mf, dev->prod, dev->serial);
printf(" %s\n", pre);
if (dev->maxchild > 0) {
for (i = 0; i < dev->maxchild; i++) {
if (dev->children[i] != NULL) {
usb_show_tree_graph(dev->children[i], pre);
pre[index] = 0;
}
}
}
}
/* main routine for the tree command */
static void usb_show_tree(struct usb_device *dev)
{
char preamble[32];
memset(preamble, 0, 32);
usb_show_tree_graph(dev, &preamble[0]);
}
static void usb_show_devices(bool tree)
{
struct usb_device *dev;
list_for_each_entry(dev, &usb_device_list, list) {
if (tree) {
if (dev->parent == NULL)
usb_show_tree(dev);
} else {
printf("Bus %03d Device %03d: ID %04x:%04x %s\n",
dev->host->busnum, dev->devnum,
dev->descriptor->idVendor,
dev->descriptor->idProduct,
dev->prod);
}
}
}
static int do_usb(int argc, char *argv[])
{
int opt;
int tree = 0, show = 0;
while ((opt = getopt(argc, argv, "ts")) > 0) {
switch (opt) {
case 't':
tree = 1;
show = 1;
break;
case 's':
show = 1;
break;
default:
return COMMAND_ERROR_USAGE;
}
}
usb_rescan();
if (show)
usb_show_devices(tree);
return 0;
}
BAREBOX_CMD_HELP_START(usb)
BAREBOX_CMD_HELP_TEXT("Scan for USB devices.")
BAREBOX_CMD_HELP_TEXT("")
BAREBOX_CMD_HELP_TEXT("Options:")
BAREBOX_CMD_HELP_OPT("-s", "show devices")
BAREBOX_CMD_HELP_OPT("-t", "show USB tree")
BAREBOX_CMD_HELP_END
BAREBOX_CMD_START(usb)
.cmd = do_usb,
BAREBOX_CMD_DESC("(re-)detect USB devices")
BAREBOX_CMD_OPTS("[-ts]")
BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP)
BAREBOX_CMD_HELP(cmd_usb_help)
BAREBOX_CMD_COMPLETE(empty_complete)
BAREBOX_CMD_END
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