Simon Glass | 66ded17 | 2014-04-10 20:01:28 -0600 | [diff] [blame] | 1 | /* |
| 2 | * (C) Copyright 2000 |
| 3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| 4 | * |
| 5 | * SPDX-License-Identifier: GPL-2.0+ |
| 6 | */ |
| 7 | |
| 8 | #include <common.h> |
Simon Glass | 0098e17 | 2014-04-10 20:01:30 -0600 | [diff] [blame] | 9 | #include <bootretry.h> |
Simon Glass | 66ded17 | 2014-04-10 20:01:28 -0600 | [diff] [blame] | 10 | #include <cli.h> |
| 11 | #include <fdtdec.h> |
| 12 | #include <menu.h> |
| 13 | #include <post.h> |
| 14 | |
| 15 | DECLARE_GLOBAL_DATA_PTR; |
| 16 | |
| 17 | #define MAX_DELAY_STOP_STR 32 |
| 18 | |
| 19 | #ifndef DEBUG_BOOTKEYS |
| 20 | #define DEBUG_BOOTKEYS 0 |
| 21 | #endif |
| 22 | #define debug_bootkeys(fmt, args...) \ |
| 23 | debug_cond(DEBUG_BOOTKEYS, fmt, ##args) |
| 24 | |
Simon Glass | affb215 | 2014-04-10 20:01:35 -0600 | [diff] [blame] | 25 | /* Stored value of bootdelay, used by autoboot_command() */ |
| 26 | static int stored_bootdelay; |
| 27 | |
Simon Glass | 66ded17 | 2014-04-10 20:01:28 -0600 | [diff] [blame] | 28 | /*************************************************************************** |
| 29 | * Watch for 'delay' seconds for autoboot stop or autoboot delay string. |
| 30 | * returns: 0 - no key string, allow autoboot 1 - got key string, abort |
| 31 | */ |
| 32 | # if defined(CONFIG_AUTOBOOT_KEYED) |
| 33 | static int abortboot_keyed(int bootdelay) |
| 34 | { |
| 35 | int abort = 0; |
| 36 | uint64_t etime = endtick(bootdelay); |
| 37 | struct { |
| 38 | char *str; |
| 39 | u_int len; |
| 40 | int retry; |
| 41 | } |
| 42 | delaykey[] = { |
Jeroen Hofstee | 9e546ee | 2014-06-16 00:17:33 +0200 | [diff] [blame^] | 43 | { .str = getenv("bootdelaykey"), .retry = 1 }, |
| 44 | { .str = getenv("bootdelaykey2"), .retry = 1 }, |
| 45 | { .str = getenv("bootstopkey"), .retry = 0 }, |
| 46 | { .str = getenv("bootstopkey2"), .retry = 0 }, |
Simon Glass | 66ded17 | 2014-04-10 20:01:28 -0600 | [diff] [blame] | 47 | }; |
| 48 | |
| 49 | char presskey[MAX_DELAY_STOP_STR]; |
| 50 | u_int presskey_len = 0; |
| 51 | u_int presskey_max = 0; |
| 52 | u_int i; |
| 53 | |
| 54 | #ifndef CONFIG_ZERO_BOOTDELAY_CHECK |
| 55 | if (bootdelay == 0) |
| 56 | return 0; |
| 57 | #endif |
| 58 | |
| 59 | # ifdef CONFIG_AUTOBOOT_PROMPT |
| 60 | printf(CONFIG_AUTOBOOT_PROMPT); |
| 61 | # endif |
| 62 | |
| 63 | # ifdef CONFIG_AUTOBOOT_DELAY_STR |
| 64 | if (delaykey[0].str == NULL) |
| 65 | delaykey[0].str = CONFIG_AUTOBOOT_DELAY_STR; |
| 66 | # endif |
| 67 | # ifdef CONFIG_AUTOBOOT_DELAY_STR2 |
| 68 | if (delaykey[1].str == NULL) |
| 69 | delaykey[1].str = CONFIG_AUTOBOOT_DELAY_STR2; |
| 70 | # endif |
| 71 | # ifdef CONFIG_AUTOBOOT_STOP_STR |
| 72 | if (delaykey[2].str == NULL) |
| 73 | delaykey[2].str = CONFIG_AUTOBOOT_STOP_STR; |
| 74 | # endif |
| 75 | # ifdef CONFIG_AUTOBOOT_STOP_STR2 |
| 76 | if (delaykey[3].str == NULL) |
| 77 | delaykey[3].str = CONFIG_AUTOBOOT_STOP_STR2; |
| 78 | # endif |
| 79 | |
| 80 | for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i++) { |
| 81 | delaykey[i].len = delaykey[i].str == NULL ? |
| 82 | 0 : strlen(delaykey[i].str); |
| 83 | delaykey[i].len = delaykey[i].len > MAX_DELAY_STOP_STR ? |
| 84 | MAX_DELAY_STOP_STR : delaykey[i].len; |
| 85 | |
| 86 | presskey_max = presskey_max > delaykey[i].len ? |
| 87 | presskey_max : delaykey[i].len; |
| 88 | |
| 89 | debug_bootkeys("%s key:<%s>\n", |
| 90 | delaykey[i].retry ? "delay" : "stop", |
| 91 | delaykey[i].str ? delaykey[i].str : "NULL"); |
| 92 | } |
| 93 | |
| 94 | /* In order to keep up with incoming data, check timeout only |
| 95 | * when catch up. |
| 96 | */ |
| 97 | do { |
| 98 | if (tstc()) { |
| 99 | if (presskey_len < presskey_max) { |
| 100 | presskey[presskey_len++] = getc(); |
| 101 | } else { |
| 102 | for (i = 0; i < presskey_max - 1; i++) |
| 103 | presskey[i] = presskey[i + 1]; |
| 104 | |
| 105 | presskey[i] = getc(); |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i++) { |
| 110 | if (delaykey[i].len > 0 && |
| 111 | presskey_len >= delaykey[i].len && |
| 112 | memcmp(presskey + presskey_len - |
| 113 | delaykey[i].len, delaykey[i].str, |
| 114 | delaykey[i].len) == 0) { |
| 115 | debug_bootkeys("got %skey\n", |
| 116 | delaykey[i].retry ? "delay" : |
| 117 | "stop"); |
| 118 | |
Simon Glass | 66ded17 | 2014-04-10 20:01:28 -0600 | [diff] [blame] | 119 | /* don't retry auto boot */ |
| 120 | if (!delaykey[i].retry) |
| 121 | bootretry_dont_retry(); |
Simon Glass | 66ded17 | 2014-04-10 20:01:28 -0600 | [diff] [blame] | 122 | abort = 1; |
| 123 | } |
| 124 | } |
| 125 | } while (!abort && get_ticks() <= etime); |
| 126 | |
| 127 | if (!abort) |
| 128 | debug_bootkeys("key timeout\n"); |
| 129 | |
| 130 | #ifdef CONFIG_SILENT_CONSOLE |
| 131 | if (abort) |
| 132 | gd->flags &= ~GD_FLG_SILENT; |
| 133 | #endif |
| 134 | |
| 135 | return abort; |
| 136 | } |
| 137 | |
| 138 | # else /* !defined(CONFIG_AUTOBOOT_KEYED) */ |
| 139 | |
| 140 | #ifdef CONFIG_MENUKEY |
| 141 | static int menukey; |
| 142 | #endif |
| 143 | |
| 144 | static int abortboot_normal(int bootdelay) |
| 145 | { |
| 146 | int abort = 0; |
| 147 | unsigned long ts; |
| 148 | |
| 149 | #ifdef CONFIG_MENUPROMPT |
| 150 | printf(CONFIG_MENUPROMPT); |
| 151 | #else |
| 152 | if (bootdelay >= 0) |
| 153 | printf("Hit any key to stop autoboot: %2d ", bootdelay); |
| 154 | #endif |
| 155 | |
| 156 | #if defined CONFIG_ZERO_BOOTDELAY_CHECK |
| 157 | /* |
| 158 | * Check if key already pressed |
| 159 | * Don't check if bootdelay < 0 |
| 160 | */ |
| 161 | if (bootdelay >= 0) { |
| 162 | if (tstc()) { /* we got a key press */ |
| 163 | (void) getc(); /* consume input */ |
| 164 | puts("\b\b\b 0"); |
| 165 | abort = 1; /* don't auto boot */ |
| 166 | } |
| 167 | } |
| 168 | #endif |
| 169 | |
| 170 | while ((bootdelay > 0) && (!abort)) { |
| 171 | --bootdelay; |
| 172 | /* delay 1000 ms */ |
| 173 | ts = get_timer(0); |
| 174 | do { |
| 175 | if (tstc()) { /* we got a key press */ |
| 176 | abort = 1; /* don't auto boot */ |
| 177 | bootdelay = 0; /* no more delay */ |
| 178 | # ifdef CONFIG_MENUKEY |
| 179 | menukey = getc(); |
| 180 | # else |
| 181 | (void) getc(); /* consume input */ |
| 182 | # endif |
| 183 | break; |
| 184 | } |
| 185 | udelay(10000); |
| 186 | } while (!abort && get_timer(ts) < 1000); |
| 187 | |
| 188 | printf("\b\b\b%2d ", bootdelay); |
| 189 | } |
| 190 | |
| 191 | putc('\n'); |
| 192 | |
| 193 | #ifdef CONFIG_SILENT_CONSOLE |
| 194 | if (abort) |
| 195 | gd->flags &= ~GD_FLG_SILENT; |
| 196 | #endif |
| 197 | |
| 198 | return abort; |
| 199 | } |
| 200 | # endif /* CONFIG_AUTOBOOT_KEYED */ |
| 201 | |
| 202 | static int abortboot(int bootdelay) |
| 203 | { |
| 204 | #ifdef CONFIG_AUTOBOOT_KEYED |
| 205 | return abortboot_keyed(bootdelay); |
| 206 | #else |
| 207 | return abortboot_normal(bootdelay); |
| 208 | #endif |
| 209 | } |
| 210 | |
Simon Glass | 66ded17 | 2014-04-10 20:01:28 -0600 | [diff] [blame] | 211 | static void process_fdt_options(const void *blob) |
| 212 | { |
Simon Glass | affb215 | 2014-04-10 20:01:35 -0600 | [diff] [blame] | 213 | #if defined(CONFIG_OF_CONTROL) |
Simon Glass | 66ded17 | 2014-04-10 20:01:28 -0600 | [diff] [blame] | 214 | ulong addr; |
| 215 | |
| 216 | /* Add an env variable to point to a kernel payload, if available */ |
| 217 | addr = fdtdec_get_config_int(gd->fdt_blob, "kernel-offset", 0); |
| 218 | if (addr) |
| 219 | setenv_addr("kernaddr", (void *)(CONFIG_SYS_TEXT_BASE + addr)); |
| 220 | |
| 221 | /* Add an env variable to point to a root disk, if available */ |
| 222 | addr = fdtdec_get_config_int(gd->fdt_blob, "rootdisk-offset", 0); |
| 223 | if (addr) |
| 224 | setenv_addr("rootaddr", (void *)(CONFIG_SYS_TEXT_BASE + addr)); |
Simon Glass | 66ded17 | 2014-04-10 20:01:28 -0600 | [diff] [blame] | 225 | #endif /* CONFIG_OF_CONTROL */ |
Simon Glass | affb215 | 2014-04-10 20:01:35 -0600 | [diff] [blame] | 226 | } |
Simon Glass | 66ded17 | 2014-04-10 20:01:28 -0600 | [diff] [blame] | 227 | |
Simon Glass | affb215 | 2014-04-10 20:01:35 -0600 | [diff] [blame] | 228 | const char *bootdelay_process(void) |
Simon Glass | 66ded17 | 2014-04-10 20:01:28 -0600 | [diff] [blame] | 229 | { |
Simon Glass | 66ded17 | 2014-04-10 20:01:28 -0600 | [diff] [blame] | 230 | char *s; |
| 231 | int bootdelay; |
| 232 | #ifdef CONFIG_BOOTCOUNT_LIMIT |
| 233 | unsigned long bootcount = 0; |
| 234 | unsigned long bootlimit = 0; |
| 235 | #endif /* CONFIG_BOOTCOUNT_LIMIT */ |
| 236 | |
| 237 | #ifdef CONFIG_BOOTCOUNT_LIMIT |
| 238 | bootcount = bootcount_load(); |
| 239 | bootcount++; |
| 240 | bootcount_store(bootcount); |
| 241 | setenv_ulong("bootcount", bootcount); |
| 242 | bootlimit = getenv_ulong("bootlimit", 10, 0); |
| 243 | #endif /* CONFIG_BOOTCOUNT_LIMIT */ |
| 244 | |
| 245 | s = getenv("bootdelay"); |
| 246 | bootdelay = s ? (int)simple_strtol(s, NULL, 10) : CONFIG_BOOTDELAY; |
| 247 | |
| 248 | #ifdef CONFIG_OF_CONTROL |
| 249 | bootdelay = fdtdec_get_config_int(gd->fdt_blob, "bootdelay", |
| 250 | bootdelay); |
| 251 | #endif |
| 252 | |
| 253 | debug("### main_loop entered: bootdelay=%d\n\n", bootdelay); |
| 254 | |
| 255 | #if defined(CONFIG_MENU_SHOW) |
| 256 | bootdelay = menu_show(bootdelay); |
| 257 | #endif |
Simon Glass | b26440f | 2014-04-10 20:01:31 -0600 | [diff] [blame] | 258 | bootretry_init_cmd_timeout(); |
Simon Glass | 66ded17 | 2014-04-10 20:01:28 -0600 | [diff] [blame] | 259 | |
| 260 | #ifdef CONFIG_POST |
| 261 | if (gd->flags & GD_FLG_POSTFAIL) { |
| 262 | s = getenv("failbootcmd"); |
| 263 | } else |
| 264 | #endif /* CONFIG_POST */ |
| 265 | #ifdef CONFIG_BOOTCOUNT_LIMIT |
| 266 | if (bootlimit && (bootcount > bootlimit)) { |
| 267 | printf("Warning: Bootlimit (%u) exceeded. Using altbootcmd.\n", |
| 268 | (unsigned)bootlimit); |
| 269 | s = getenv("altbootcmd"); |
| 270 | } else |
| 271 | #endif /* CONFIG_BOOTCOUNT_LIMIT */ |
| 272 | s = getenv("bootcmd"); |
Simon Glass | 66ded17 | 2014-04-10 20:01:28 -0600 | [diff] [blame] | 273 | |
| 274 | process_fdt_options(gd->fdt_blob); |
Simon Glass | affb215 | 2014-04-10 20:01:35 -0600 | [diff] [blame] | 275 | stored_bootdelay = bootdelay; |
Simon Glass | 66ded17 | 2014-04-10 20:01:28 -0600 | [diff] [blame] | 276 | |
Simon Glass | affb215 | 2014-04-10 20:01:35 -0600 | [diff] [blame] | 277 | return s; |
| 278 | } |
Simon Glass | 66ded17 | 2014-04-10 20:01:28 -0600 | [diff] [blame] | 279 | |
Simon Glass | affb215 | 2014-04-10 20:01:35 -0600 | [diff] [blame] | 280 | void autoboot_command(const char *s) |
| 281 | { |
Simon Glass | 66ded17 | 2014-04-10 20:01:28 -0600 | [diff] [blame] | 282 | debug("### main_loop: bootcmd=\"%s\"\n", s ? s : "<UNDEFINED>"); |
| 283 | |
Simon Glass | affb215 | 2014-04-10 20:01:35 -0600 | [diff] [blame] | 284 | if (stored_bootdelay != -1 && s && !abortboot(stored_bootdelay)) { |
Simon Glass | 66ded17 | 2014-04-10 20:01:28 -0600 | [diff] [blame] | 285 | #if defined(CONFIG_AUTOBOOT_KEYED) && !defined(CONFIG_AUTOBOOT_KEYED_CTRLC) |
| 286 | int prev = disable_ctrlc(1); /* disable Control C checking */ |
| 287 | #endif |
| 288 | |
| 289 | run_command_list(s, -1, 0); |
| 290 | |
| 291 | #if defined(CONFIG_AUTOBOOT_KEYED) && !defined(CONFIG_AUTOBOOT_KEYED_CTRLC) |
| 292 | disable_ctrlc(prev); /* restore Control C checking */ |
| 293 | #endif |
| 294 | } |
| 295 | |
| 296 | #ifdef CONFIG_MENUKEY |
| 297 | if (menukey == CONFIG_MENUKEY) { |
| 298 | s = getenv("menucmd"); |
| 299 | if (s) |
| 300 | run_command_list(s, -1, 0); |
| 301 | } |
| 302 | #endif /* CONFIG_MENUKEY */ |
| 303 | } |