1 /* 2 * Copyright (c) 2011-2012 The Chromium OS Authors. 3 * SPDX-License-Identifier: GPL-2.0+ 4 */ 5 6 #include <common.h> 7 #include <os.h> 8 #include <asm/getopt.h> 9 #include <asm/sections.h> 10 #include <asm/state.h> 11 12 DECLARE_GLOBAL_DATA_PTR; 13 14 int sandbox_early_getopt_check(void) 15 { 16 struct sandbox_state *state = state_get_current(); 17 struct sandbox_cmdline_option **sb_opt = __u_boot_sandbox_option_start; 18 size_t num_options = __u_boot_sandbox_option_count(); 19 size_t i; 20 int max_arg_len, max_noarg_len; 21 22 /* parse_err will be a string of the faulting option */ 23 if (!state->parse_err) 24 return 0; 25 26 if (strcmp(state->parse_err, "help")) { 27 printf("u-boot: error: failed while parsing option: %s\n" 28 "\ttry running with --help for more information.\n", 29 state->parse_err); 30 os_exit(1); 31 } 32 33 printf( 34 "u-boot, a command line test interface to U-Boot\n\n" 35 "Usage: u-boot [options]\n" 36 "Options:\n"); 37 38 max_arg_len = 0; 39 for (i = 0; i < num_options; ++i) 40 max_arg_len = max(strlen(sb_opt[i]->flag), max_arg_len); 41 max_noarg_len = max_arg_len + 7; 42 43 for (i = 0; i < num_options; ++i) { 44 struct sandbox_cmdline_option *opt = sb_opt[i]; 45 46 /* first output the short flag if it has one */ 47 if (opt->flag_short >= 0x100) 48 printf(" "); 49 else 50 printf(" -%c, ", opt->flag_short); 51 52 /* then the long flag */ 53 if (opt->has_arg) 54 printf("--%-*s <arg> ", max_arg_len, opt->flag); 55 else 56 printf("--%-*s", max_noarg_len, opt->flag); 57 58 /* finally the help text */ 59 printf(" %s\n", opt->help); 60 } 61 62 os_exit(0); 63 } 64 65 static int sandbox_cmdline_cb_help(struct sandbox_state *state, const char *arg) 66 { 67 /* just flag to sandbox_early_getopt_check to show usage */ 68 return 1; 69 } 70 SANDBOX_CMDLINE_OPT_SHORT(help, 'h', 0, "Display help"); 71 72 int sandbox_main_loop_init(void) 73 { 74 struct sandbox_state *state = state_get_current(); 75 76 /* Execute command if required */ 77 if (state->cmd) { 78 run_command_list(state->cmd, -1, 0); 79 if (!state->interactive) 80 os_exit(state->exit_type); 81 } 82 83 return 0; 84 } 85 86 static int sandbox_cmdline_cb_command(struct sandbox_state *state, 87 const char *arg) 88 { 89 state->cmd = arg; 90 return 0; 91 } 92 SANDBOX_CMDLINE_OPT_SHORT(command, 'c', 1, "Execute U-Boot command"); 93 94 static int sandbox_cmdline_cb_fdt(struct sandbox_state *state, const char *arg) 95 { 96 state->fdt_fname = arg; 97 return 0; 98 } 99 SANDBOX_CMDLINE_OPT_SHORT(fdt, 'd', 1, "Specify U-Boot's control FDT"); 100 101 static int sandbox_cmdline_cb_interactive(struct sandbox_state *state, 102 const char *arg) 103 { 104 state->interactive = true; 105 return 0; 106 } 107 108 SANDBOX_CMDLINE_OPT_SHORT(interactive, 'i', 0, "Enter interactive mode"); 109 110 static int sandbox_cmdline_cb_memory(struct sandbox_state *state, 111 const char *arg) 112 { 113 int err; 114 115 /* For now assume we always want to write it */ 116 state->write_ram_buf = true; 117 state->ram_buf_fname = arg; 118 119 if (os_read_ram_buf(arg)) { 120 printf("Failed to read RAM buffer\n"); 121 return err; 122 } 123 124 return 0; 125 } 126 SANDBOX_CMDLINE_OPT_SHORT(memory, 'm', 1, 127 "Read/write ram_buf memory contents from file"); 128 129 static int sandbox_cmdline_cb_state(struct sandbox_state *state, 130 const char *arg) 131 { 132 state->state_fname = arg; 133 return 0; 134 } 135 SANDBOX_CMDLINE_OPT_SHORT(state, 's', 1, "Specify the sandbox state FDT"); 136 137 static int sandbox_cmdline_cb_read(struct sandbox_state *state, 138 const char *arg) 139 { 140 state->read_state = true; 141 return 0; 142 } 143 SANDBOX_CMDLINE_OPT_SHORT(read, 'r', 0, "Read the state FDT on startup"); 144 145 static int sandbox_cmdline_cb_write(struct sandbox_state *state, 146 const char *arg) 147 { 148 state->write_state = true; 149 return 0; 150 } 151 SANDBOX_CMDLINE_OPT_SHORT(write, 'w', 0, "Write state FDT on exit"); 152 153 static int sandbox_cmdline_cb_ignore_missing(struct sandbox_state *state, 154 const char *arg) 155 { 156 state->ignore_missing_state_on_read = true; 157 return 0; 158 } 159 SANDBOX_CMDLINE_OPT_SHORT(ignore_missing, 'n', 0, 160 "Ignore missing state on read"); 161 162 int main(int argc, char *argv[]) 163 { 164 struct sandbox_state *state; 165 int ret; 166 167 ret = state_init(); 168 if (ret) 169 goto err; 170 171 state = state_get_current(); 172 if (os_parse_args(state, argc, argv)) 173 return 1; 174 175 ret = sandbox_read_state(state, state->state_fname); 176 if (ret) 177 goto err; 178 179 /* Do pre- and post-relocation init */ 180 board_init_f(0); 181 182 board_init_r(gd->new_gd, 0); 183 184 /* NOTREACHED - board_init_r() does not return */ 185 return 0; 186 187 err: 188 printf("Error %d\n", ret); 189 return 1; 190 } 191