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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 <errno.h>
#include <asm/io.h>
#include <dm/root.h>
#include <dm/test.h>
#include <dm/uclass-internal.h>
/**
* dm_display_line() - Display information about a single device
*
* Displays a single line of information with an option prefix
*
* @dev: Device to display
* @buf: Prefix to display at the start of the line
*/
static void dm_display_line(struct udevice *dev, char *buf)
{
printf("%s- %c %s @ %08lx", buf,
dev->flags & DM_FLAG_ACTIVATED ? '*' : ' ',
dev->name, (ulong)map_to_sysmem(dev));
if (dev->req_seq != -1)
printf(", %d", dev->req_seq);
puts("\n");
}
static int display_succ(struct udevice *in, char *buf)
{
int len;
int ip = 0;
char local[16];
struct udevice *pos, *n, *prev = NULL;
dm_display_line(in, buf);
if (list_empty(&in->child_head))
return 0;
len = strlen(buf);
strncpy(local, buf, sizeof(local));
snprintf(local + len, 2, "|");
if (len && local[len - 1] == '`')
local[len - 1] = ' ';
list_for_each_entry_safe(pos, n, &in->child_head, sibling_node) {
if (ip++)
display_succ(prev, local);
prev = pos;
}
snprintf(local + len, 2, "`");
display_succ(prev, local);
return 0;
}
static int dm_dump(struct udevice *dev)
{
if (!dev)
return -EINVAL;
return display_succ(dev, "");
}
static int do_dm_dump_all(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
struct udevice *root;
root = dm_root();
printf("ROOT %08lx\n", (ulong)map_to_sysmem(root));
return dm_dump(root);
}
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;
}
#ifdef CONFIG_DM_TEST
static int do_dm_test(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
return dm_test_main();
}
#define TEST_HELP "\ndm test Run tests"
#else
#define TEST_HELP
#endif
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, "", ""),
#ifdef CONFIG_DM_TEST
U_BOOT_CMD_MKENT(test, 1, 1, do_dm_test, "", ""),
#endif
};
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, 2, 1, do_dm,
"Driver model low level access",
"tree Dump driver model tree ('*' = activated)\n"
"dm uclass Dump list of instances for each uclass"
TEST_HELP
);
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