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));
32 if (dev->req_seq != -1)
33 printf(", %d", dev->req_seq);
37 static int display_succ(struct udevice *in, char *buf)
42 struct udevice *pos, *n, *prev = NULL;
44 dm_display_line(in, buf);
46 if (list_empty(&in->child_head))
50 strncpy(local, buf, sizeof(local));
51 snprintf(local + len, 2, "|");
52 if (len && local[len - 1] == '`')
55 list_for_each_entry_safe(pos, n, &in->child_head, sibling_node) {
57 display_succ(prev, local);
61 snprintf(local + len, 2, "`");
62 display_succ(prev, local);
67 static int dm_dump(struct udevice *dev)
71 return display_succ(dev, "");
74 static int do_dm_dump_all(cmd_tbl_t *cmdtp, int flag, int argc,
80 printf("ROOT %08lx\n", (ulong)map_to_sysmem(root));
84 static int do_dm_dump_uclass(cmd_tbl_t *cmdtp, int flag, int argc,
91 for (id = 0; id < UCLASS_COUNT; id++) {
94 ret = uclass_get(id, &uc);
98 printf("uclass %d: %s\n", id, uc->uc_drv->name);
99 if (list_empty(&uc->dev_head))
101 list_for_each_entry(dev, &uc->dev_head, uclass_node) {
102 dm_display_line(dev, "");
110 #ifdef CONFIG_DM_TEST
111 static int do_dm_test(cmd_tbl_t *cmdtp, int flag, int argc,
114 return dm_test_main();
116 #define TEST_HELP "\ndm test Run tests"
121 static cmd_tbl_t test_commands[] = {
122 U_BOOT_CMD_MKENT(tree, 0, 1, do_dm_dump_all, "", ""),
123 U_BOOT_CMD_MKENT(uclass, 1, 1, do_dm_dump_uclass, "", ""),
124 #ifdef CONFIG_DM_TEST
125 U_BOOT_CMD_MKENT(test, 1, 1, do_dm_test, "", ""),
129 static int do_dm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
135 return CMD_RET_USAGE;
136 test_cmd = find_cmd_tbl(argv[1], test_commands,
137 ARRAY_SIZE(test_commands));
140 if (!test_cmd || argc > test_cmd->maxargs)
141 return CMD_RET_USAGE;
143 ret = test_cmd->cmd(test_cmd, flag, argc, argv);
145 return cmd_process_error(test_cmd, ret);
150 "Driver model low level access",
151 "tree Dump driver model tree ('*' = activated)\n"
152 "dm uclass Dump list of instances for each uclass"