2 * Copyright (c) 2013 Google, Inc
5 * Marek Vasut <marex@denx.de>
7 * SPDX-License-Identifier: GPL-2.0+
17 #include <dm/uclass-internal.h>
20 * dm_display_line() - Display information about a single device
22 * Displays a single line of information with an option prefix
24 * @dev: Device to display
25 * @buf: Prefix to display at the start of the line
27 static void dm_display_line(struct udevice *dev, char *buf)
29 printf("%s- %c %s @ %08lx", buf,
30 dev->flags & DM_FLAG_ACTIVATED ? '*' : ' ',
31 dev->name, (ulong)map_to_sysmem(dev));
35 static int display_succ(struct udevice *in, char *buf)
40 struct udevice *pos, *n, *prev = NULL;
42 dm_display_line(in, buf);
44 if (list_empty(&in->child_head))
48 strncpy(local, buf, sizeof(local));
49 snprintf(local + len, 2, "|");
50 if (len && local[len - 1] == '`')
53 list_for_each_entry_safe(pos, n, &in->child_head, sibling_node) {
55 display_succ(prev, local);
59 snprintf(local + len, 2, "`");
60 display_succ(prev, local);
65 static int dm_dump(struct udevice *dev)
69 return display_succ(dev, "");
72 static int do_dm_dump_all(cmd_tbl_t *cmdtp, int flag, int argc,
78 printf("ROOT %08lx\n", (ulong)map_to_sysmem(root));
82 static int do_dm_dump_uclass(cmd_tbl_t *cmdtp, int flag, int argc,
89 for (id = 0; id < UCLASS_COUNT; id++) {
92 ret = uclass_get(id, &uc);
96 printf("uclass %d: %s\n", id, uc->uc_drv->name);
97 if (list_empty(&uc->dev_head))
99 list_for_each_entry(dev, &uc->dev_head, uclass_node) {
100 dm_display_line(dev, "");
108 #ifdef CONFIG_DM_TEST
109 static int do_dm_test(cmd_tbl_t *cmdtp, int flag, int argc,
112 return dm_test_main();
114 #define TEST_HELP "\ndm test Run tests"
119 static cmd_tbl_t test_commands[] = {
120 U_BOOT_CMD_MKENT(tree, 0, 1, do_dm_dump_all, "", ""),
121 U_BOOT_CMD_MKENT(uclass, 1, 1, do_dm_dump_uclass, "", ""),
122 #ifdef CONFIG_DM_TEST
123 U_BOOT_CMD_MKENT(test, 1, 1, do_dm_test, "", ""),
127 static int do_dm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
133 return CMD_RET_USAGE;
134 test_cmd = find_cmd_tbl(argv[1], test_commands,
135 ARRAY_SIZE(test_commands));
138 if (!test_cmd || argc > test_cmd->maxargs)
139 return CMD_RET_USAGE;
141 ret = test_cmd->cmd(test_cmd, flag, argc, argv);
143 return cmd_process_error(test_cmd, ret);
148 "Driver model low level access",
149 "tree Dump driver model tree ('*' = activated)\n"
150 "dm uclass Dump list of instances for each uclass"