Eric Lee / smarc-uboot

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cmd/log.c 3.17 KB
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d5f61f272   Simon Glass   log: Add a 'log l... 
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  /*
   * Copyright (c) 2017 Google, Inc
   * Written by Simon Glass <sjg@chromium.org>
   *
   * SPDX-License-Identifier:     GPL-2.0+
   */
  
  #include <common.h>
  #include <command.h>
  #include <dm.h>
  #include <log.h>
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  static char log_fmt_chars[LOGF_COUNT] = "clFLfm";
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  static int do_log_level(cmd_tbl_t *cmdtp, int flag, int argc,
  			char * const argv[])
  {
  	if (argc > 1)
  		gd->default_log_level = simple_strtol(argv[1], NULL, 10);
  	else
  		printf("Default log level: %d
  ", gd->default_log_level);
  
  	return 0;
  }
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  static int do_log_format(cmd_tbl_t *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 = LOGF_DEFAULT;
  		} 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'
  ", *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("
  ");
  	}
  
  	return 0;
  }
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  static int do_log_rec(cmd_tbl_t *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'
  ", argv[2]);
  			return CMD_RET_USAGE;
  		}
  	}
  	if (level >= LOGL_MAX) {
  		printf("Invalid log level %u
  ", 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
  ", msg))
  		return CMD_RET_FAILURE;
  
  	return 0;
  }
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  static cmd_tbl_t log_sub[] = {
  	U_BOOT_CMD_MKENT(level, CONFIG_SYS_MAXARGS, 1, do_log_level, "", ""),
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  #ifdef CONFIG_LOG_TEST
  	U_BOOT_CMD_MKENT(test, 2, 1, do_log_test, "", ""),
  #endif
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  	U_BOOT_CMD_MKENT(format, CONFIG_SYS_MAXARGS, 1, do_log_format, "", ""),
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  	U_BOOT_CMD_MKENT(rec, CONFIG_SYS_MAXARGS, 1, do_log_rec, "", ""),
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  };
  
  static int do_log(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  {
  	cmd_tbl_t *cp;
  
  	if (argc < 2)
  		return CMD_RET_USAGE;
  
  	/* drop initial "log" arg */
  	argc--;
  	argv++;
  
  	cp = find_cmd_tbl(argv[0], log_sub, ARRAY_SIZE(log_sub));
  	if (cp)
  		return cp->cmd(cmdtp, flag, argc, argv);
  
  	return CMD_RET_USAGE;
  }
  
  #ifdef CONFIG_SYS_LONGHELP
  static char log_help_text[] =
  	"level - get/set log level
  "
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  #ifdef CONFIG_LOG_TEST
  	"log test - run log tests
  "
  #endif
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  	"log format <fmt> - set log output format. <fmt> is a string where
  "
  	"\teach letter indicates something that should be displayed:
  "
  	"\tc=category, l=level, F=file, L=line number, f=function, m=msg
  "
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  	"\tor 'default', equivalent to 'fm', or 'all' for all
  "
  	"log rec <category> <level> <file> <line> <func> <message> - "
  		"output a log record"
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  	;
  #endif
  
  U_BOOT_CMD(
  	log, CONFIG_SYS_MAXARGS, 1, do_log,
  	"log system", log_help_text
  );