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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2017 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
*/
#include <common.h>
#include <command.h>
#include <dm.h>
#include <log.h>
static char log_fmt_chars[LOGF_COUNT] = "clFLfm";
static enum log_level_t parse_log_level(char *const arg)
{
enum log_level_t ret;
ulong level;
if (!strict_strtoul(arg, 10, &level)) {
if (level > _LOG_MAX_LEVEL) {
printf("Only log levels <= %d are supported\n",
_LOG_MAX_LEVEL);
return LOGL_NONE;
}
return level;
}
ret = log_get_level_by_name(arg);
if (ret == LOGL_NONE)
printf("Unknown log level \"%s\"\n", arg);
return ret;
}
static int do_log_level(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
enum log_level_t log_level;
if (argc > 1) {
log_level = parse_log_level(argv[1]);
if (log_level == LOGL_NONE)
return CMD_RET_FAILURE;
gd->default_log_level = log_level;
} else {
for (log_level = LOGL_FIRST; log_level <= _LOG_MAX_LEVEL;
log_level++)
printf("%s%s\n", log_get_level_name(log_level),
log_level == gd->default_log_level ?
" (default)" : "");
}
return CMD_RET_SUCCESS;
}
static int do_log_categories(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
enum log_category_t cat;
const char *name;
for (cat = LOGC_FIRST; cat < LOGC_COUNT; cat++) {
name = log_get_cat_name(cat);
/*
* Invalid category names (e.g. <invalid> or <missing>) begin
* with '<'.
*/
if (name[0] == '<')
continue;
printf("%s\n", name);
}
return CMD_RET_SUCCESS;
}
static int do_log_drivers(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct log_device *ldev;
list_for_each_entry(ldev, &gd->log_head, sibling_node)
printf("%s\n", ldev->drv->name);
return CMD_RET_SUCCESS;
}
static int do_log_format(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
int i;
if (argc > 1) {
const char *str = argv[1];
if (!strcmp(str, "default")) {
gd->log_fmt = log_get_default_format();
} else if (!strcmp(str, "all")) {
gd->log_fmt = LOGF_ALL;
} else {
gd->log_fmt = 0;
for (; *str; str++) {
char *ptr = strchr(log_fmt_chars, *str);
if (!ptr) {
printf("Invalid log char '%c'\n", *str);
return CMD_RET_FAILURE;
}
gd->log_fmt |= 1 << (ptr - log_fmt_chars);
}
}
} else {
printf("Log format: ");
for (i = 0; i < LOGF_COUNT; i++) {
if (gd->log_fmt & (1 << i))
printf("%c", log_fmt_chars[i]);
}
printf("\n");
}
return 0;
}
static int do_log_rec(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
enum log_category_t cat;
enum log_level_t level;
const char *file;
uint line;
const char *func;
const char *msg;
char *end;
if (argc < 7)
return CMD_RET_USAGE;
cat = log_get_cat_by_name(argv[1]);
level = simple_strtoul(argv[2], &end, 10);
if (end == argv[2]) {
level = log_get_level_by_name(argv[2]);
if (level == LOGL_NONE) {
printf("Invalid log level '%s'\n", argv[2]);
return CMD_RET_USAGE;
}
}
if (level >= LOGL_MAX) {
printf("Invalid log level %u\n", level);
return CMD_RET_USAGE;
}
file = argv[3];
line = simple_strtoul(argv[4], NULL, 10);
func = argv[5];
msg = argv[6];
if (_log(cat, level, file, line, func, "%s\n", msg))
return CMD_RET_FAILURE;
return 0;
}
#ifdef CONFIG_SYS_LONGHELP
static char log_help_text[] =
"level [<level>] - get/set log level\n"
"categories - list log categories\n"
"drivers - list log drivers\n"
"log format <fmt> - set log output format. <fmt> is a string where\n"
"\teach letter indicates something that should be displayed:\n"
"\tc=category, l=level, F=file, L=line number, f=function, m=msg\n"
"\tor 'default', or 'all' for all\n"
"log rec <category> <level> <file> <line> <func> <message> - "
"output a log record"
;
#endif
U_BOOT_CMD_WITH_SUBCMDS(log, "log system", log_help_text,
U_BOOT_SUBCMD_MKENT(level, 2, 1, do_log_level),
U_BOOT_SUBCMD_MKENT(categories, 1, 1, do_log_categories),
U_BOOT_SUBCMD_MKENT(drivers, 1, 1, do_log_drivers),
U_BOOT_SUBCMD_MKENT(format, 2, 1, do_log_format),
U_BOOT_SUBCMD_MKENT(rec, 7, 1, do_log_rec),
);
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