LXR uboot/cmd/bootcount.c

   1// SPDX-License-Identifier: GPL-2.0+
   2
   3#include <common.h>
   4#include <command.h>
   5#include <bootcount.h>
   6
   7static int do_bootcount_print(struct cmd_tbl *cmdtp, int flag, int argc,
   8                              char *const argv[])
   9{
  10        printf("%lu\n", bootcount_load());
  11        return CMD_RET_SUCCESS;
  12}
  13
  14static int do_bootcount_reset(struct cmd_tbl *cmdtp, int flag, int argc,
  15                              char *const argv[])
  16{
  17        /*
  18         * note that we're explicitly not resetting the environment
  19         * variable, so you still have the old bootcounter available
  20         */
  21        bootcount_store(0);
  22        return CMD_RET_SUCCESS;
  23}
  24
  25static struct cmd_tbl bootcount_sub[] = {
  26        U_BOOT_CMD_MKENT(print, 1, 1, do_bootcount_print, "", ""),
  27        U_BOOT_CMD_MKENT(reset, 1, 1, do_bootcount_reset, "", ""),
  28};
  29
  30static int do_bootcount(struct cmd_tbl *cmdtp, int flag, int argc,
  31                        char *const argv[])
  32{
  33        struct cmd_tbl *cp;
  34
  35        if (argc < 2)
  36                return CMD_RET_USAGE;
  37
  38        /* drop initial "bootcount" arg */
  39        argc--;
  40        argv++;
  41
  42        cp = find_cmd_tbl(argv[0], bootcount_sub, ARRAY_SIZE(bootcount_sub));
  43        if (cp)
  44                return cp->cmd(cmdtp, flag, argc, argv);
  45
  46        return CMD_RET_USAGE;
  47}
  48
  49#if CONFIG_IS_ENABLED(SYS_LONGHELP)
  50static char bootcount_help_text[] =
  51        "print - print current bootcounter\n"
  52        "reset - reset the bootcounter"
  53        ;
  54#endif
  55
  56U_BOOT_CMD(bootcount, 2, 1, do_bootcount,
  57           "bootcount",
  58#if CONFIG_IS_ENABLED(SYS_LONGHELP)
  59           bootcount_help_text
  60#endif
  61);
  62