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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 | // SPDX-License-Identifier: GPL-2.0+ #include <cli.h> #include <command.h> #include <string.h> #include <asm/global_data.h> DECLARE_GLOBAL_DATA_PTR; static const char *gd_flags_to_parser_name(void) { if (gd->flags & GD_FLG_HUSH_OLD_PARSER) return "old"; if (gd->flags & GD_FLG_HUSH_MODERN_PARSER) return "modern"; return NULL; } static int do_cli_get(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { const char *current = gd_flags_to_parser_name(); if (!current) { printf("current cli value is not valid, this should not happen!\n"); return CMD_RET_FAILURE; } printf("%s\n", current); return CMD_RET_SUCCESS; } static int parser_string_to_gd_flags(const char *parser) { if (!strcmp(parser, "old")) return GD_FLG_HUSH_OLD_PARSER; if (!strcmp(parser, "modern")) return GD_FLG_HUSH_MODERN_PARSER; return -1; } static int gd_flags_to_parser_config(int flag) { if (gd->flags & GD_FLG_HUSH_OLD_PARSER) return CONFIG_VAL(HUSH_OLD_PARSER); if (gd->flags & GD_FLG_HUSH_MODERN_PARSER) return CONFIG_VAL(HUSH_MODERN_PARSER); return -1; } static void reset_parser_gd_flags(void) { gd->flags &= ~GD_FLG_HUSH_OLD_PARSER; gd->flags &= ~GD_FLG_HUSH_MODERN_PARSER; } static int do_cli_set(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { char *parser_name; int parser_config; int parser_flag; if (argc < 2) return CMD_RET_USAGE; parser_name = argv[1]; parser_flag = parser_string_to_gd_flags(parser_name); if (parser_flag == -1) { printf("Bad value for parser name: %s\n", parser_name); return CMD_RET_USAGE; } parser_config = gd_flags_to_parser_config(parser_flag); switch (parser_config) { case -1: printf("Bad value for parser flags: %d\n", parser_flag); return CMD_RET_FAILURE; case 0: printf("Want to set current parser to %s, but its code was not compiled!\n", parser_name); return CMD_RET_FAILURE; } reset_parser_gd_flags(); gd->flags |= parser_flag; cli_init(); cli_loop(); /* cli_loop() should never return. */ return CMD_RET_FAILURE; } static struct cmd_tbl parser_sub[] = { U_BOOT_CMD_MKENT(get, 1, 1, do_cli_get, "", ""), U_BOOT_CMD_MKENT(set, 2, 1, do_cli_set, "", ""), }; static int do_cli(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { struct cmd_tbl *cp; if (argc < 2) return CMD_RET_USAGE; /* drop initial "parser" arg */ argc--; argv++; cp = find_cmd_tbl(argv[0], parser_sub, ARRAY_SIZE(parser_sub)); if (cp) return cp->cmd(cmdtp, flag, argc, argv); return CMD_RET_USAGE; } #if CONFIG_IS_ENABLED(SYS_LONGHELP) static char cli_help_text[] = "get - print current cli\n" "set - set the current cli, possible value are: old, modern" ; #endif U_BOOT_CMD(cli, 3, 1, do_cli, "cli", #if CONFIG_IS_ENABLED(SYS_LONGHELP) cli_help_text #endif ); |