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/*
* Copyright (c) 2013 Google, Inc
*
* (C) Copyright 2012
* Marek Vasut <marex@denx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <malloc.h>
#include <mapmem.h>
#include <errno.h>
#include <asm/io.h>
#include <dm/root.h>
#include <dm/uclass-internal.h>
static void show_devices(struct udevice *dev, int depth, int last_flag)
{
int i, is_last;
struct udevice *child;
char class_name[12];
/* print the first 11 characters to not break the tree-format. */
strlcpy(class_name, dev->uclass->uc_drv->name, sizeof(class_name));
printf(" %-11s [ %c ] ", class_name,
dev->flags & DM_FLAG_ACTIVATED ? '+' : ' ');
for (i = depth; i >= 0; i--) {
is_last = (last_flag >> i) & 1;
if (i) {
if (is_last)
printf(" ");
else
printf("| ");
} else {
if (is_last)
printf("`-- ");
else
printf("|-- ");
}
}
printf("%s\n", dev->name);
list_for_each_entry(child, &dev->child_head, sibling_node) {
is_last = list_is_last(&child->sibling_node, &dev->child_head);
show_devices(child, depth + 1, (last_flag << 1) | is_last);
}
}
static int do_dm_dump_all(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
struct udevice *root;
root = dm_root();
if (root) {
printf(" Class Probed Name\n");
printf("----------------------------------------\n");
show_devices(root, -1, 0);
}
return 0;
}
/**
* dm_display_line() - Display information about a single device
*
* Displays a single line of information with an option prefix
*
* @dev: Device to display
*/
static void dm_display_line(struct udevice *dev)
{
printf("- %c %s @ %08lx",
dev->flags & DM_FLAG_ACTIVATED ? '*' : ' ',
dev->name, (ulong)map_to_sysmem(dev));
if (dev->seq != -1 || dev->req_seq != -1)
printf(", seq %d, (req %d)", dev->seq, dev->req_seq);
puts("\n");
}
static int do_dm_dump_uclass(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
struct uclass *uc;
int ret;
int id;
for (id = 0; id < UCLASS_COUNT; id++) {
struct udevice *dev;
ret = uclass_get(id, &uc);
if (ret)
continue;
printf("uclass %d: %s\n", id, uc->uc_drv->name);
if (list_empty(&uc->dev_head))
continue;
list_for_each_entry(dev, &uc->dev_head, uclass_node) {
dm_display_line(dev);
}
puts("\n");
}
return 0;
}
static cmd_tbl_t test_commands[] = {
U_BOOT_CMD_MKENT(tree, 0, 1, do_dm_dump_all, "", ""),
U_BOOT_CMD_MKENT(uclass, 1, 1, do_dm_dump_uclass, "", ""),
};
static int do_dm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
cmd_tbl_t *test_cmd;
int ret;
if (argc < 2)
return CMD_RET_USAGE;
test_cmd = find_cmd_tbl(argv[1], test_commands,
ARRAY_SIZE(test_commands));
argc -= 2;
argv += 2;
if (!test_cmd || argc > test_cmd->maxargs)
return CMD_RET_USAGE;
ret = test_cmd->cmd(test_cmd, flag, argc, argv);
return cmd_process_error(test_cmd, ret);
}
U_BOOT_CMD(
dm, 3, 1, do_dm,
"Driver model low level access",
"tree Dump driver model tree ('*' = activated)\n"
"dm uclass Dump list of instances for each uclass"
);
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