arch/sandbox/cpu/start.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (c) 2011-2012 The Chromium OS Authors.
   4  */
   5
   6 #include <common.h>
   7 #include <errno.h>
   8 #include <os.h>
   9 #include <cli.h>
  10 #include <malloc.h>
  11 #include <asm/getopt.h>
  12 #include <asm/io.h>
  13 #include <asm/sections.h>
  14 #include <asm/state.h>
  15
  16 DECLARE_GLOBAL_DATA_PTR;
  17
  18 int sandbox_early_getopt_check(void)
  19 {
  20         struct sandbox_state *state = state_get_current();
  21         struct sandbox_cmdline_option **sb_opt = __u_boot_sandbox_option_start;
  22         size_t num_options = __u_boot_sandbox_option_count();
  23         size_t i;
  24         int max_arg_len, max_noarg_len;
  25
  26         /* parse_err will be a string of the faulting option */
  27         if (!state->parse_err)
  28                 return 0;
  29
  30         if (strcmp(state->parse_err, "help")) {
  31                 printf("u-boot: error: failed while parsing option: %s\n"
  32                         "\ttry running with --help for more information.\n",
  33                         state->parse_err);
  34                 os_exit(1);
  35         }
  36
  37         printf(
  38                 "u-boot, a command line test interface to U-Boot\n\n"
  39                 "Usage: u-boot [options]\n"
  40                 "Options:\n");
  41
  42         max_arg_len = 0;
  43         for (i = 0; i < num_options; ++i)
  44                 max_arg_len = max((int)strlen(sb_opt[i]->flag), max_arg_len);
  45         max_noarg_len = max_arg_len + 7;
  46
  47         for (i = 0; i < num_options; ++i) {
  48                 struct sandbox_cmdline_option *opt = sb_opt[i];
  49
  50                 /* first output the short flag if it has one */
  51                 if (opt->flag_short >= 0x100)
  52                         printf("      ");
  53                 else
  54                         printf("  -%c, ", opt->flag_short);
  55
  56                 /* then the long flag */
  57                 if (opt->has_arg)
  58                         printf("--%-*s <arg> ", max_arg_len, opt->flag);
  59                 else
  60                         printf("--%-*s", max_noarg_len, opt->flag);
  61
  62                 /* finally the help text */
  63                 printf("  %s\n", opt->help);
  64         }
  65
  66         os_exit(0);
  67 }
  68
  69 int misc_init_f(void)
  70 {
  71         return sandbox_early_getopt_check();
  72 }
  73
  74 static int sandbox_cmdline_cb_help(struct sandbox_state *state, const char *arg)
  75 {
  76         /* just flag to sandbox_early_getopt_check to show usage */
  77         return 1;
  78 }
  79 SANDBOX_CMDLINE_OPT_SHORT(help, 'h', 0, "Display help");
  80
  81 #ifndef CONFIG_SPL_BUILD
  82 int sandbox_main_loop_init(void)
  83 {
  84         struct sandbox_state *state = state_get_current();
  85
  86         /* Execute command if required */
  87         if (state->cmd || state->run_distro_boot) {
  88                 int retval = 0;
  89
  90                 cli_init();
  91
  92 #ifdef CONFIG_CMDLINE
  93                 if (state->cmd)
  94                         retval = run_command_list(state->cmd, -1, 0);
  95
  96                 if (state->run_distro_boot)
  97                         retval = cli_simple_run_command("run distro_bootcmd",
  98                                                         0);
  99 #endif
 100                 if (!state->interactive)
 101                         os_exit(retval);
 102         }
 103
 104         return 0;
 105 }
 106 #endif
 107
 108 static int sandbox_cmdline_cb_boot(struct sandbox_state *state,
 109                                       const char *arg)
 110 {
 111         state->run_distro_boot = true;
 112         return 0;
 113 }
 114 SANDBOX_CMDLINE_OPT_SHORT(boot, 'b', 0, "Run distro boot commands");
 115
 116 static int sandbox_cmdline_cb_command(struct sandbox_state *state,
 117                                       const char *arg)
 118 {
 119         state->cmd = arg;
 120         return 0;
 121 }
 122 SANDBOX_CMDLINE_OPT_SHORT(command, 'c', 1, "Execute U-Boot command");
 123
 124 static int sandbox_cmdline_cb_fdt(struct sandbox_state *state, const char *arg)
 125 {
 126         state->fdt_fname = arg;
 127         return 0;
 128 }
 129 SANDBOX_CMDLINE_OPT_SHORT(fdt, 'd', 1, "Specify U-Boot's control FDT");
 130
 131 static int sandbox_cmdline_cb_default_fdt(struct sandbox_state *state,
 132                                           const char *arg)
 133 {
 134         const char *fmt = "%s.dtb";
 135         char *fname;
 136         int len;
 137
 138         len = strlen(state->argv[0]) + strlen(fmt) + 1;
 139         fname = os_malloc(len);
 140         if (!fname)
 141                 return -ENOMEM;
 142         snprintf(fname, len, fmt, state->argv[0]);
 143         state->fdt_fname = fname;
 144
 145         return 0;
 146 }
 147 SANDBOX_CMDLINE_OPT_SHORT(default_fdt, 'D', 0,
 148                 "Use the default u-boot.dtb control FDT in U-Boot directory");
 149
 150 static int sandbox_cmdline_cb_interactive(struct sandbox_state *state,
 151                                           const char *arg)
 152 {
 153         state->interactive = true;
 154         return 0;
 155 }
 156
 157 SANDBOX_CMDLINE_OPT_SHORT(interactive, 'i', 0, "Enter interactive mode");
 158
 159 static int sandbox_cmdline_cb_jump(struct sandbox_state *state,
 160                                    const char *arg)
 161 {
 162         /* Remember to delete this U-Boot image later */
 163         state->jumped_fname = arg;
 164
 165         return 0;
 166 }
 167 SANDBOX_CMDLINE_OPT_SHORT(jump, 'j', 1, "Jumped from previous U-Boot");
 168
 169 static int sandbox_cmdline_cb_memory(struct sandbox_state *state,
 170                                      const char *arg)
 171 {
 172         int err;
 173
 174         /* For now assume we always want to write it */
 175         state->write_ram_buf = true;
 176         state->ram_buf_fname = arg;
 177
 178         err = os_read_ram_buf(arg);
 179         if (err) {
 180                 printf("Failed to read RAM buffer '%s': %d\n", arg, err);
 181                 return err;
 182         }
 183
 184         return 0;
 185 }
 186 SANDBOX_CMDLINE_OPT_SHORT(memory, 'm', 1,
 187                           "Read/write ram_buf memory contents from file");
 188
 189 static int sandbox_cmdline_cb_rm_memory(struct sandbox_state *state,
 190                                         const char *arg)
 191 {
 192         state->ram_buf_rm = true;
 193
 194         return 0;
 195 }
 196 SANDBOX_CMDLINE_OPT(rm_memory, 0, "Remove memory file after reading");
 197
 198 static int sandbox_cmdline_cb_state(struct sandbox_state *state,
 199                                     const char *arg)
 200 {
 201         state->state_fname = arg;
 202         return 0;
 203 }
 204 SANDBOX_CMDLINE_OPT_SHORT(state, 's', 1, "Specify the sandbox state FDT");
 205
 206 static int sandbox_cmdline_cb_read(struct sandbox_state *state,
 207                                    const char *arg)
 208 {
 209         state->read_state = true;
 210         return 0;
 211 }
 212 SANDBOX_CMDLINE_OPT_SHORT(read, 'r', 0, "Read the state FDT on startup");
 213
 214 static int sandbox_cmdline_cb_write(struct sandbox_state *state,
 215                                     const char *arg)
 216 {
 217         state->write_state = true;
 218         return 0;
 219 }
 220 SANDBOX_CMDLINE_OPT_SHORT(write, 'w', 0, "Write state FDT on exit");
 221
 222 static int sandbox_cmdline_cb_ignore_missing(struct sandbox_state *state,
 223                                              const char *arg)
 224 {
 225         state->ignore_missing_state_on_read = true;
 226         return 0;
 227 }
 228 SANDBOX_CMDLINE_OPT_SHORT(ignore_missing, 'n', 0,
 229                           "Ignore missing state on read");
 230
 231 static int sandbox_cmdline_cb_show_lcd(struct sandbox_state *state,
 232                                        const char *arg)
 233 {
 234         state->show_lcd = true;
 235         return 0;
 236 }
 237 SANDBOX_CMDLINE_OPT_SHORT(show_lcd, 'l', 0,
 238                           "Show the sandbox LCD display");
 239
 240 static const char *term_args[STATE_TERM_COUNT] = {
 241         "raw-with-sigs",
 242         "raw",
 243         "cooked",
 244 };
 245
 246 static int sandbox_cmdline_cb_terminal(struct sandbox_state *state,
 247                                        const char *arg)
 248 {
 249         int i;
 250
 251         for (i = 0; i < STATE_TERM_COUNT; i++) {
 252                 if (!strcmp(arg, term_args[i])) {
 253                         state->term_raw = i;
 254                         return 0;
 255                 }
 256         }
 257
 258         printf("Unknown terminal setting '%s' (", arg);
 259         for (i = 0; i < STATE_TERM_COUNT; i++)
 260                 printf("%s%s", i ? ", " : "", term_args[i]);
 261         puts(")\n");
 262
 263         return 1;
 264 }
 265 SANDBOX_CMDLINE_OPT_SHORT(terminal, 't', 1,
 266                           "Set terminal to raw/cooked mode");
 267
 268 static int sandbox_cmdline_cb_verbose(struct sandbox_state *state,
 269                                       const char *arg)
 270 {
 271         state->show_test_output = true;
 272         return 0;
 273 }
 274 SANDBOX_CMDLINE_OPT_SHORT(verbose, 'v', 0, "Show test output");
 275
 276 static int sandbox_cmdline_cb_log_level(struct sandbox_state *state,
 277                                         const char *arg)
 278 {
 279         state->default_log_level = simple_strtol(arg, NULL, 10);
 280
 281         return 0;
 282 }
 283 SANDBOX_CMDLINE_OPT_SHORT(log_level, 'L', 1,
 284                           "Set log level (0=panic, 7=debug)");
 285
 286 static int sandbox_cmdline_cb_show_of_platdata(struct sandbox_state *state,
 287                                                const char *arg)
 288 {
 289         state->show_of_platdata = true;
 290
 291         return 0;
 292 }
 293 SANDBOX_CMDLINE_OPT(show_of_platdata, 0, "Show of-platdata in SPL");
 294
 295 int board_run_command(const char *cmdline)
 296 {
 297         printf("## Commands are disabled. Please enable CONFIG_CMDLINE.\n");
 298
 299         return 1;
 300 }
 301
 302 static void setup_ram_buf(struct sandbox_state *state)
 303 {
 304         gd->arch.ram_buf = state->ram_buf;
 305         gd->ram_size = state->ram_size;
 306 }
 307
 308 void state_show(struct sandbox_state *state)
 309 {
 310         char **p;
 311
 312         printf("Arguments:\n");
 313         for (p = state->argv; *p; p++)
 314                 printf("%s ", *p);
 315         printf("\n");
 316 }
 317
 318 int main(int argc, char *argv[])
 319 {
 320         struct sandbox_state *state;
 321         gd_t data;
 322         int ret;
 323
 324         ret = state_init();
 325         if (ret)
 326                 goto err;
 327
 328         state = state_get_current();
 329         if (os_parse_args(state, argc, argv))
 330                 return 1;
 331
 332         ret = sandbox_read_state(state, state->state_fname);
 333         if (ret)
 334                 goto err;
 335
 336         memset(&data, '\0', sizeof(data));
 337         gd = &data;
 338 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
 339         gd->malloc_base = CONFIG_MALLOC_F_ADDR;
 340 #endif
 341 #if CONFIG_IS_ENABLED(LOG)
 342         gd->default_log_level = state->default_log_level;
 343 #endif
 344         setup_ram_buf(state);
 345
 346         /* Do pre- and post-relocation init */
 347         board_init_f(0);
 348
 349         board_init_r(gd->new_gd, 0);
 350
 351         /* NOTREACHED - board_init_r() does not return */
 352         return 0;
 353
 354 err:
 355         printf("Error %d\n", ret);
 356         return 1;
 357 }