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