blob: c27cc2c75120778f30df72126139804be149bfc1 [file] [log] [blame]
Simon Glass66ded172014-04-10 20:01:28 -06001/*
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>
Jeroen Hofstee39e12302014-07-13 22:57:58 +02009#include <autoboot.h>
Simon Glass0098e172014-04-10 20:01:30 -060010#include <bootretry.h>
Simon Glass66ded172014-04-10 20:01:28 -060011#include <cli.h>
12#include <fdtdec.h>
13#include <menu.h>
14#include <post.h>
15
16DECLARE_GLOBAL_DATA_PTR;
17
18#define MAX_DELAY_STOP_STR 32
19
20#ifndef DEBUG_BOOTKEYS
21#define DEBUG_BOOTKEYS 0
22#endif
23#define debug_bootkeys(fmt, args...) \
24 debug_cond(DEBUG_BOOTKEYS, fmt, ##args)
25
Simon Glassaffb2152014-04-10 20:01:35 -060026/* Stored value of bootdelay, used by autoboot_command() */
27static int stored_bootdelay;
28
Simon Glass66ded172014-04-10 20:01:28 -060029/***************************************************************************
30 * Watch for 'delay' seconds for autoboot stop or autoboot delay string.
31 * returns: 0 - no key string, allow autoboot 1 - got key string, abort
32 */
33# if defined(CONFIG_AUTOBOOT_KEYED)
34static int abortboot_keyed(int bootdelay)
35{
36 int abort = 0;
37 uint64_t etime = endtick(bootdelay);
38 struct {
39 char *str;
40 u_int len;
41 int retry;
42 }
43 delaykey[] = {
Jeroen Hofstee9e546ee2014-06-16 00:17:33 +020044 { .str = getenv("bootdelaykey"), .retry = 1 },
45 { .str = getenv("bootdelaykey2"), .retry = 1 },
46 { .str = getenv("bootstopkey"), .retry = 0 },
47 { .str = getenv("bootstopkey2"), .retry = 0 },
Simon Glass66ded172014-04-10 20:01:28 -060048 };
49
50 char presskey[MAX_DELAY_STOP_STR];
51 u_int presskey_len = 0;
52 u_int presskey_max = 0;
53 u_int i;
54
55#ifndef CONFIG_ZERO_BOOTDELAY_CHECK
56 if (bootdelay == 0)
57 return 0;
58#endif
59
60# ifdef CONFIG_AUTOBOOT_PROMPT
61 printf(CONFIG_AUTOBOOT_PROMPT);
62# endif
63
64# ifdef CONFIG_AUTOBOOT_DELAY_STR
65 if (delaykey[0].str == NULL)
66 delaykey[0].str = CONFIG_AUTOBOOT_DELAY_STR;
67# endif
68# ifdef CONFIG_AUTOBOOT_DELAY_STR2
69 if (delaykey[1].str == NULL)
70 delaykey[1].str = CONFIG_AUTOBOOT_DELAY_STR2;
71# endif
72# ifdef CONFIG_AUTOBOOT_STOP_STR
73 if (delaykey[2].str == NULL)
74 delaykey[2].str = CONFIG_AUTOBOOT_STOP_STR;
75# endif
76# ifdef CONFIG_AUTOBOOT_STOP_STR2
77 if (delaykey[3].str == NULL)
78 delaykey[3].str = CONFIG_AUTOBOOT_STOP_STR2;
79# endif
80
81 for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i++) {
82 delaykey[i].len = delaykey[i].str == NULL ?
83 0 : strlen(delaykey[i].str);
84 delaykey[i].len = delaykey[i].len > MAX_DELAY_STOP_STR ?
85 MAX_DELAY_STOP_STR : delaykey[i].len;
86
87 presskey_max = presskey_max > delaykey[i].len ?
88 presskey_max : delaykey[i].len;
89
90 debug_bootkeys("%s key:<%s>\n",
91 delaykey[i].retry ? "delay" : "stop",
92 delaykey[i].str ? delaykey[i].str : "NULL");
93 }
94
95 /* In order to keep up with incoming data, check timeout only
96 * when catch up.
97 */
98 do {
99 if (tstc()) {
100 if (presskey_len < presskey_max) {
101 presskey[presskey_len++] = getc();
102 } else {
103 for (i = 0; i < presskey_max - 1; i++)
104 presskey[i] = presskey[i + 1];
105
106 presskey[i] = getc();
107 }
108 }
109
110 for (i = 0; i < sizeof(delaykey) / sizeof(delaykey[0]); i++) {
111 if (delaykey[i].len > 0 &&
112 presskey_len >= delaykey[i].len &&
113 memcmp(presskey + presskey_len -
114 delaykey[i].len, delaykey[i].str,
115 delaykey[i].len) == 0) {
116 debug_bootkeys("got %skey\n",
117 delaykey[i].retry ? "delay" :
118 "stop");
119
Simon Glass66ded172014-04-10 20:01:28 -0600120 /* don't retry auto boot */
121 if (!delaykey[i].retry)
122 bootretry_dont_retry();
Simon Glass66ded172014-04-10 20:01:28 -0600123 abort = 1;
124 }
125 }
126 } while (!abort && get_ticks() <= etime);
127
128 if (!abort)
129 debug_bootkeys("key timeout\n");
130
131#ifdef CONFIG_SILENT_CONSOLE
132 if (abort)
133 gd->flags &= ~GD_FLG_SILENT;
134#endif
135
136 return abort;
137}
138
139# else /* !defined(CONFIG_AUTOBOOT_KEYED) */
140
141#ifdef CONFIG_MENUKEY
142static int menukey;
143#endif
144
145static int abortboot_normal(int bootdelay)
146{
147 int abort = 0;
148 unsigned long ts;
149
150#ifdef CONFIG_MENUPROMPT
151 printf(CONFIG_MENUPROMPT);
152#else
153 if (bootdelay >= 0)
154 printf("Hit any key to stop autoboot: %2d ", bootdelay);
155#endif
156
157#if defined CONFIG_ZERO_BOOTDELAY_CHECK
158 /*
159 * Check if key already pressed
160 * Don't check if bootdelay < 0
161 */
162 if (bootdelay >= 0) {
163 if (tstc()) { /* we got a key press */
164 (void) getc(); /* consume input */
165 puts("\b\b\b 0");
166 abort = 1; /* don't auto boot */
167 }
168 }
169#endif
170
171 while ((bootdelay > 0) && (!abort)) {
172 --bootdelay;
173 /* delay 1000 ms */
174 ts = get_timer(0);
175 do {
176 if (tstc()) { /* we got a key press */
177 abort = 1; /* don't auto boot */
178 bootdelay = 0; /* no more delay */
179# ifdef CONFIG_MENUKEY
180 menukey = getc();
181# else
182 (void) getc(); /* consume input */
183# endif
184 break;
185 }
186 udelay(10000);
187 } while (!abort && get_timer(ts) < 1000);
188
189 printf("\b\b\b%2d ", bootdelay);
190 }
191
192 putc('\n');
193
194#ifdef CONFIG_SILENT_CONSOLE
195 if (abort)
196 gd->flags &= ~GD_FLG_SILENT;
197#endif
198
199 return abort;
200}
201# endif /* CONFIG_AUTOBOOT_KEYED */
202
203static int abortboot(int bootdelay)
204{
205#ifdef CONFIG_AUTOBOOT_KEYED
206 return abortboot_keyed(bootdelay);
207#else
208 return abortboot_normal(bootdelay);
209#endif
210}
211
Simon Glass66ded172014-04-10 20:01:28 -0600212static void process_fdt_options(const void *blob)
213{
Simon Glassaffb2152014-04-10 20:01:35 -0600214#if defined(CONFIG_OF_CONTROL)
Simon Glass66ded172014-04-10 20:01:28 -0600215 ulong addr;
216
217 /* Add an env variable to point to a kernel payload, if available */
218 addr = fdtdec_get_config_int(gd->fdt_blob, "kernel-offset", 0);
219 if (addr)
220 setenv_addr("kernaddr", (void *)(CONFIG_SYS_TEXT_BASE + addr));
221
222 /* Add an env variable to point to a root disk, if available */
223 addr = fdtdec_get_config_int(gd->fdt_blob, "rootdisk-offset", 0);
224 if (addr)
225 setenv_addr("rootaddr", (void *)(CONFIG_SYS_TEXT_BASE + addr));
Simon Glass66ded172014-04-10 20:01:28 -0600226#endif /* CONFIG_OF_CONTROL */
Simon Glassaffb2152014-04-10 20:01:35 -0600227}
Simon Glass66ded172014-04-10 20:01:28 -0600228
Simon Glassaffb2152014-04-10 20:01:35 -0600229const char *bootdelay_process(void)
Simon Glass66ded172014-04-10 20:01:28 -0600230{
Simon Glass66ded172014-04-10 20:01:28 -0600231 char *s;
232 int bootdelay;
233#ifdef CONFIG_BOOTCOUNT_LIMIT
234 unsigned long bootcount = 0;
235 unsigned long bootlimit = 0;
236#endif /* CONFIG_BOOTCOUNT_LIMIT */
237
238#ifdef CONFIG_BOOTCOUNT_LIMIT
239 bootcount = bootcount_load();
240 bootcount++;
241 bootcount_store(bootcount);
242 setenv_ulong("bootcount", bootcount);
243 bootlimit = getenv_ulong("bootlimit", 10, 0);
244#endif /* CONFIG_BOOTCOUNT_LIMIT */
245
246 s = getenv("bootdelay");
247 bootdelay = s ? (int)simple_strtol(s, NULL, 10) : CONFIG_BOOTDELAY;
248
249#ifdef CONFIG_OF_CONTROL
250 bootdelay = fdtdec_get_config_int(gd->fdt_blob, "bootdelay",
251 bootdelay);
252#endif
253
254 debug("### main_loop entered: bootdelay=%d\n\n", bootdelay);
255
256#if defined(CONFIG_MENU_SHOW)
257 bootdelay = menu_show(bootdelay);
258#endif
Simon Glassb26440f2014-04-10 20:01:31 -0600259 bootretry_init_cmd_timeout();
Simon Glass66ded172014-04-10 20:01:28 -0600260
261#ifdef CONFIG_POST
262 if (gd->flags & GD_FLG_POSTFAIL) {
263 s = getenv("failbootcmd");
264 } else
265#endif /* CONFIG_POST */
266#ifdef CONFIG_BOOTCOUNT_LIMIT
267 if (bootlimit && (bootcount > bootlimit)) {
268 printf("Warning: Bootlimit (%u) exceeded. Using altbootcmd.\n",
269 (unsigned)bootlimit);
270 s = getenv("altbootcmd");
271 } else
272#endif /* CONFIG_BOOTCOUNT_LIMIT */
273 s = getenv("bootcmd");
Simon Glass66ded172014-04-10 20:01:28 -0600274
275 process_fdt_options(gd->fdt_blob);
Simon Glassaffb2152014-04-10 20:01:35 -0600276 stored_bootdelay = bootdelay;
Simon Glass66ded172014-04-10 20:01:28 -0600277
Simon Glassaffb2152014-04-10 20:01:35 -0600278 return s;
279}
Simon Glass66ded172014-04-10 20:01:28 -0600280
Simon Glassaffb2152014-04-10 20:01:35 -0600281void autoboot_command(const char *s)
282{
Simon Glass66ded172014-04-10 20:01:28 -0600283 debug("### main_loop: bootcmd=\"%s\"\n", s ? s : "<UNDEFINED>");
284
Simon Glassaffb2152014-04-10 20:01:35 -0600285 if (stored_bootdelay != -1 && s && !abortboot(stored_bootdelay)) {
Simon Glass66ded172014-04-10 20:01:28 -0600286#if defined(CONFIG_AUTOBOOT_KEYED) && !defined(CONFIG_AUTOBOOT_KEYED_CTRLC)
287 int prev = disable_ctrlc(1); /* disable Control C checking */
288#endif
289
290 run_command_list(s, -1, 0);
291
292#if defined(CONFIG_AUTOBOOT_KEYED) && !defined(CONFIG_AUTOBOOT_KEYED_CTRLC)
293 disable_ctrlc(prev); /* restore Control C checking */
294#endif
295 }
296
297#ifdef CONFIG_MENUKEY
298 if (menukey == CONFIG_MENUKEY) {
299 s = getenv("menucmd");
300 if (s)
301 run_command_list(s, -1, 0);
302 }
303#endif /* CONFIG_MENUKEY */
304}