mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 07:34:31 +00:00
a56642c7ba
The command "dm tree" lists devices in a tree-like format. This commit makes it look more like what the Unix command "tree" shows. => dm tree Class Probed Name ---------------------------------------- root [ + ] root_driver demo [ ] |-- demo_shape_drv demo [ ] |-- demo_simple_drv demo [ ] |-- demo_shape_drv demo [ ] |-- demo_simple_drv demo [ ] |-- demo_shape_drv test [ ] |-- test_drv test [ ] |-- test_drv test [ ] |-- test_drv gpio [ ] |-- gpio_sandbox serial [ ] |-- serial_sandbox serial [ + ] |-- serial demo [ ] |-- triangle demo [ ] |-- square demo [ ] |-- hexagon gpio [ ] |-- gpios spi [ ] |-- spi@0 spi_emul [ ] | `-- flash@0 cros_ec [ + ] `-- cros-ec@0 Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
155 lines
3.3 KiB
C
155 lines
3.3 KiB
C
/*
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* Copyright (c) 2013 Google, Inc
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*
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* (C) Copyright 2012
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* Marek Vasut <marex@denx.de>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <malloc.h>
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#include <errno.h>
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#include <asm/io.h>
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#include <dm/root.h>
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#include <dm/test.h>
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#include <dm/uclass-internal.h>
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static void show_devices(struct udevice *dev, int depth, int last_flag)
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{
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int i, is_last;
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struct udevice *child;
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char class_name[12];
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/* print the first 11 characters to not break the tree-format. */
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strlcpy(class_name, dev->uclass->uc_drv->name, sizeof(class_name));
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printf(" %-11s [ %c ] ", class_name,
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dev->flags & DM_FLAG_ACTIVATED ? '+' : ' ');
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for (i = depth; i >= 0; i--) {
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is_last = (last_flag >> i) & 1;
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if (i) {
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if (is_last)
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printf(" ");
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else
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printf("| ");
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} else {
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if (is_last)
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printf("`-- ");
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else
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printf("|-- ");
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}
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}
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printf("%s\n", dev->name);
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list_for_each_entry(child, &dev->child_head, sibling_node) {
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is_last = list_is_last(&child->sibling_node, &dev->child_head);
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show_devices(child, depth + 1, (last_flag << 1) | is_last);
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}
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}
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static int do_dm_dump_all(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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struct udevice *root;
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root = dm_root();
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if (root) {
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printf(" Class Probed Name\n");
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printf("----------------------------------------\n");
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show_devices(root, -1, 0);
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}
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return 0;
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}
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/**
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* dm_display_line() - Display information about a single device
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*
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* Displays a single line of information with an option prefix
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*
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* @dev: Device to display
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*/
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static void dm_display_line(struct udevice *dev)
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{
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printf("- %c %s @ %08lx",
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dev->flags & DM_FLAG_ACTIVATED ? '*' : ' ',
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dev->name, (ulong)map_to_sysmem(dev));
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if (dev->req_seq != -1)
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printf(", %d", dev->req_seq);
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puts("\n");
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}
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static int do_dm_dump_uclass(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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struct uclass *uc;
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int ret;
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int id;
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for (id = 0; id < UCLASS_COUNT; id++) {
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struct udevice *dev;
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ret = uclass_get(id, &uc);
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if (ret)
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continue;
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printf("uclass %d: %s\n", id, uc->uc_drv->name);
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if (list_empty(&uc->dev_head))
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continue;
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list_for_each_entry(dev, &uc->dev_head, uclass_node) {
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dm_display_line(dev);
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}
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puts("\n");
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}
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return 0;
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}
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#ifdef CONFIG_DM_TEST
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static int do_dm_test(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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return dm_test_main();
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}
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#define TEST_HELP "\ndm test Run tests"
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#else
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#define TEST_HELP
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#endif
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static cmd_tbl_t test_commands[] = {
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U_BOOT_CMD_MKENT(tree, 0, 1, do_dm_dump_all, "", ""),
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U_BOOT_CMD_MKENT(uclass, 1, 1, do_dm_dump_uclass, "", ""),
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#ifdef CONFIG_DM_TEST
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U_BOOT_CMD_MKENT(test, 1, 1, do_dm_test, "", ""),
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#endif
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};
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static int do_dm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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cmd_tbl_t *test_cmd;
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int ret;
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if (argc != 2)
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return CMD_RET_USAGE;
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test_cmd = find_cmd_tbl(argv[1], test_commands,
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ARRAY_SIZE(test_commands));
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argc -= 2;
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argv += 2;
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if (!test_cmd || argc > test_cmd->maxargs)
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return CMD_RET_USAGE;
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ret = test_cmd->cmd(test_cmd, flag, argc, argv);
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return cmd_process_error(test_cmd, ret);
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}
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U_BOOT_CMD(
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dm, 2, 1, do_dm,
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"Driver model low level access",
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"tree Dump driver model tree ('*' = activated)\n"
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"dm uclass Dump list of instances for each uclass"
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TEST_HELP
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);
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