git.sur5r.net Git - u-boot/blob - arch/sandbox/cpu/start.c

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