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 <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 static int sandbox_cmdline_cb_help(struct sandbox_state *state, const char *arg)
  70 {
  71         /* just flag to sandbox_early_getopt_check to show usage */
  72         return 1;
  73 }
  74 SANDBOX_CMDLINE_OPT_SHORT(help, 'h', 0, "Display help");
  75
  76 #ifndef CONFIG_SPL_BUILD
  77 int sandbox_main_loop_init(void)
  78 {
  79         struct sandbox_state *state = state_get_current();
  80
  81         /* Execute command if required */
  82         if (state->cmd || state->run_distro_boot) {
  83                 int retval = 0;
  84
  85                 cli_init();
  86
  87 #ifdef CONFIG_CMDLINE
  88                 if (state->cmd)
  89                         retval = run_command_list(state->cmd, -1, 0);
  90
  91                 if (state->run_distro_boot)
  92                         retval = cli_simple_run_command("run distro_bootcmd",
  93                                                         0);
  94 #endif
  95                 if (!state->interactive)
  96                         os_exit(retval);
  97         }
  98
  99         return 0;
 100 }
 101 #endif
 102
 103 static int sandbox_cmdline_cb_boot(struct sandbox_state *state,
 104                                       const char *arg)
 105 {
 106         state->run_distro_boot = true;
 107         return 0;
 108 }
 109 SANDBOX_CMDLINE_OPT_SHORT(boot, 'b', 0, "Run distro boot commands");
 110
 111 static int sandbox_cmdline_cb_command(struct sandbox_state *state,
 112                                       const char *arg)
 113 {
 114         state->cmd = arg;
 115         return 0;
 116 }
 117 SANDBOX_CMDLINE_OPT_SHORT(command, 'c', 1, "Execute U-Boot command");
 118
 119 static int sandbox_cmdline_cb_fdt(struct sandbox_state *state, const char *arg)
 120 {
 121         state->fdt_fname = arg;
 122         return 0;
 123 }
 124 SANDBOX_CMDLINE_OPT_SHORT(fdt, 'd', 1, "Specify U-Boot's control FDT");
 125
 126 static int sandbox_cmdline_cb_default_fdt(struct sandbox_state *state,
 127                                           const char *arg)
 128 {
 129         const char *fmt = "%s.dtb";
 130         char *fname;
 131         int len;
 132
 133         len = strlen(state->argv[0]) + strlen(fmt) + 1;
 134         fname = os_malloc(len);
 135         if (!fname)
 136                 return -ENOMEM;
 137         snprintf(fname, len, fmt, state->argv[0]);
 138         state->fdt_fname = fname;
 139
 140         return 0;
 141 }
 142 SANDBOX_CMDLINE_OPT_SHORT(default_fdt, 'D', 0,
 143                 "Use the default u-boot.dtb control FDT in U-Boot directory");
 144
 145 static int sandbox_cmdline_cb_interactive(struct sandbox_state *state,
 146                                           const char *arg)
 147 {
 148         state->interactive = true;
 149         return 0;
 150 }
 151
 152 SANDBOX_CMDLINE_OPT_SHORT(interactive, 'i', 0, "Enter interactive mode");
 153
 154 static int sandbox_cmdline_cb_jump(struct sandbox_state *state,
 155                                    const char *arg)
 156 {
 157         /* Remember to delete this U-Boot image later */
 158         state->jumped_fname = arg;
 159
 160         return 0;
 161 }
 162 SANDBOX_CMDLINE_OPT_SHORT(jump, 'j', 1, "Jumped from previous U-Boot");
 163
 164 static int sandbox_cmdline_cb_memory(struct sandbox_state *state,
 165                                      const char *arg)
 166 {
 167         int err;
 168
 169         /* For now assume we always want to write it */
 170         state->write_ram_buf = true;
 171         state->ram_buf_fname = arg;
 172
 173         err = os_read_ram_buf(arg);
 174         if (err) {
 175                 printf("Failed to read RAM buffer\n");
 176                 return err;
 177         }
 178
 179         return 0;
 180 }
 181 SANDBOX_CMDLINE_OPT_SHORT(memory, 'm', 1,
 182                           "Read/write ram_buf memory contents from file");
 183
 184 static int sandbox_cmdline_cb_rm_memory(struct sandbox_state *state,
 185                                         const char *arg)
 186 {
 187         state->ram_buf_rm = true;
 188
 189         return 0;
 190 }
 191 SANDBOX_CMDLINE_OPT(rm_memory, 0, "Remove memory file after reading");
 192
 193 static int sandbox_cmdline_cb_state(struct sandbox_state *state,
 194                                     const char *arg)
 195 {
 196         state->state_fname = arg;
 197         return 0;
 198 }
 199 SANDBOX_CMDLINE_OPT_SHORT(state, 's', 1, "Specify the sandbox state FDT");
 200
 201 static int sandbox_cmdline_cb_read(struct sandbox_state *state,
 202                                    const char *arg)
 203 {
 204         state->read_state = true;
 205         return 0;
 206 }
 207 SANDBOX_CMDLINE_OPT_SHORT(read, 'r', 0, "Read the state FDT on startup");
 208
 209 static int sandbox_cmdline_cb_write(struct sandbox_state *state,
 210                                     const char *arg)
 211 {
 212         state->write_state = true;
 213         return 0;
 214 }
 215 SANDBOX_CMDLINE_OPT_SHORT(write, 'w', 0, "Write state FDT on exit");
 216
 217 static int sandbox_cmdline_cb_ignore_missing(struct sandbox_state *state,
 218                                              const char *arg)
 219 {
 220         state->ignore_missing_state_on_read = true;
 221         return 0;
 222 }
 223 SANDBOX_CMDLINE_OPT_SHORT(ignore_missing, 'n', 0,
 224                           "Ignore missing state on read");
 225
 226 static int sandbox_cmdline_cb_show_lcd(struct sandbox_state *state,
 227                                        const char *arg)
 228 {
 229         state->show_lcd = true;
 230         return 0;
 231 }
 232 SANDBOX_CMDLINE_OPT_SHORT(show_lcd, 'l', 0,
 233                           "Show the sandbox LCD display");
 234
 235 static const char *term_args[STATE_TERM_COUNT] = {
 236         "raw-with-sigs",
 237         "raw",
 238         "cooked",
 239 };
 240
 241 static int sandbox_cmdline_cb_terminal(struct sandbox_state *state,
 242                                        const char *arg)
 243 {
 244         int i;
 245
 246         for (i = 0; i < STATE_TERM_COUNT; i++) {
 247                 if (!strcmp(arg, term_args[i])) {
 248                         state->term_raw = i;
 249                         return 0;
 250                 }
 251         }
 252
 253         printf("Unknown terminal setting '%s' (", arg);
 254         for (i = 0; i < STATE_TERM_COUNT; i++)
 255                 printf("%s%s", i ? ", " : "", term_args[i]);
 256         puts(")\n");
 257
 258         return 1;
 259 }
 260 SANDBOX_CMDLINE_OPT_SHORT(terminal, 't', 1,
 261                           "Set terminal to raw/cooked mode");
 262
 263 static int sandbox_cmdline_cb_verbose(struct sandbox_state *state,
 264                                       const char *arg)
 265 {
 266         state->show_test_output = true;
 267         return 0;
 268 }
 269 SANDBOX_CMDLINE_OPT_SHORT(verbose, 'v', 0, "Show test output");
 270
 271 int board_run_command(const char *cmdline)
 272 {
 273         printf("## Commands are disabled. Please enable CONFIG_CMDLINE.\n");
 274
 275         return 1;
 276 }
 277
 278 int main(int argc, char *argv[])
 279 {
 280         struct sandbox_state *state;
 281         gd_t data;
 282         int ret;
 283
 284         ret = state_init();
 285         if (ret)
 286                 goto err;
 287
 288         state = state_get_current();
 289         if (os_parse_args(state, argc, argv))
 290                 return 1;
 291
 292         ret = sandbox_read_state(state, state->state_fname);
 293         if (ret)
 294                 goto err;
 295
 296         /* Remove old memory file if required */
 297         if (state->ram_buf_rm && state->ram_buf_fname)
 298                 os_unlink(state->ram_buf_fname);
 299
 300         memset(&data, '\0', sizeof(data));
 301         gd = &data;
 302 #ifdef CONFIG_SYS_MALLOC_F_LEN
 303         gd->malloc_base = CONFIG_MALLOC_F_ADDR;
 304 #endif
 305
 306         /* Do pre- and post-relocation init */
 307         board_init_f(0);
 308
 309         board_init_r(gd->new_gd, 0);
 310
 311         /* NOTREACHED - board_init_r() does not return */
 312         return 0;
 313
 314 err:
 315         printf("Error %d\n", ret);
 316         return 1;
 317 }