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git.ipfire.org Git - thirdparty/u-boot.git/blob - cmd/bootmenu.c
1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2011-2013 Pali Rohár <pali.rohar@gmail.com>
12 #include <linux/string.h>
14 /* maximum bootmenu entries */
17 /* maximal size of bootmenu env
18 * 9 = strlen("bootmenu_")
19 * 2 = strlen(MAX_COUNT)
22 #define MAX_ENV_SIZE (9 + 2 + 1)
24 struct bootmenu_entry
{
25 unsigned short int num
; /* unique number 0 .. MAX_COUNT */
26 char key
[3]; /* key identifier of number */
27 char *title
; /* title of entry */
28 char *command
; /* hush command of entry */
29 struct bootmenu_data
*menu
; /* this bootmenu */
30 struct bootmenu_entry
*next
; /* next menu entry (num+1) */
33 struct bootmenu_data
{
34 int delay
; /* delay for autoboot */
35 int active
; /* active menu entry */
36 int count
; /* total count of menu entries */
37 struct bootmenu_entry
*first
; /* first menu entry */
47 static char *bootmenu_getoption(unsigned short int n
)
49 char name
[MAX_ENV_SIZE
];
54 sprintf(name
, "bootmenu_%d", n
);
58 static void bootmenu_print_entry(void *data
)
60 struct bootmenu_entry
*entry
= data
;
61 int reverse
= (entry
->menu
->active
== entry
->num
);
64 * Move cursor to line where the entry will be drown (entry->num)
65 * First 3 lines contain bootmenu header + 1 empty line
67 printf(ANSI_CURSOR_POSITION
, entry
->num
+ 4, 1);
72 puts(ANSI_COLOR_REVERSE
);
77 puts(ANSI_COLOR_RESET
);
80 static void bootmenu_autoboot_loop(struct bootmenu_data
*menu
,
81 enum bootmenu_key
*key
, int *esc
)
85 if (menu
->delay
> 0) {
86 printf(ANSI_CURSOR_POSITION
, menu
->count
+ 5, 1);
87 printf(" Hit any key to stop autoboot: %2d ", menu
->delay
);
90 while (menu
->delay
> 0) {
91 for (i
= 0; i
< 100; ++i
) {
121 printf("\b\b\b%2d ", menu
->delay
);
124 printf(ANSI_CURSOR_POSITION
, menu
->count
+ 5, 1);
125 puts(ANSI_CLEAR_LINE
);
127 if (menu
->delay
== 0)
131 static void bootmenu_loop(struct bootmenu_data
*menu
,
132 enum bootmenu_key
*key
, int *esc
)
145 /* First char of ANSI escape sequence '\e' */
152 /* Second char of ANSI '[' */
162 /* Third char of ANSI (number '1') - optional */
163 if (*esc
== 2 && c
== '1') {
171 /* ANSI 'A' - key up was pressed */
174 /* ANSI 'B' - key down was pressed */
177 /* other key was pressed */
184 /* enter key was pressed */
189 static char *bootmenu_choice_entry(void *data
)
191 struct bootmenu_data
*menu
= data
;
192 struct bootmenu_entry
*iter
;
193 enum bootmenu_key key
= KEY_NONE
;
198 if (menu
->delay
>= 0) {
199 /* Autoboot was not stopped */
200 bootmenu_autoboot_loop(menu
, &key
, &esc
);
202 /* Some key was pressed, so autoboot was stopped */
203 bootmenu_loop(menu
, &key
, &esc
);
208 if (menu
->active
> 0)
210 /* no menu key selected, regenerate menu */
213 if (menu
->active
< menu
->count
- 1)
215 /* no menu key selected, regenerate menu */
219 for (i
= 0; i
< menu
->active
; ++i
)
228 debug("bootmenu: this should not happen");
232 static void bootmenu_destroy(struct bootmenu_data
*menu
)
234 struct bootmenu_entry
*iter
= menu
->first
;
235 struct bootmenu_entry
*next
;
247 static struct bootmenu_data
*bootmenu_create(int delay
)
249 unsigned short int i
= 0;
251 struct bootmenu_data
*menu
;
252 struct bootmenu_entry
*iter
= NULL
;
256 struct bootmenu_entry
*entry
;
258 menu
= malloc(sizeof(struct bootmenu_data
));
266 while ((option
= bootmenu_getoption(i
))) {
267 sep
= strchr(option
, '=');
269 printf("Invalid bootmenu entry: %s\n", option
);
273 entry
= malloc(sizeof(struct bootmenu_entry
));
278 entry
->title
= malloc(len
+ 1);
283 memcpy(entry
->title
, option
, len
);
284 entry
->title
[len
] = 0;
286 len
= strlen(sep
+ 1);
287 entry
->command
= malloc(len
+ 1);
288 if (!entry
->command
) {
293 memcpy(entry
->command
, sep
+ 1, len
);
294 entry
->command
[len
] = 0;
296 sprintf(entry
->key
, "%d", i
);
310 if (i
== MAX_COUNT
- 1)
314 /* Add U-Boot console entry at the end */
315 if (i
<= MAX_COUNT
- 1) {
316 entry
= malloc(sizeof(struct bootmenu_entry
));
320 entry
->title
= strdup("U-Boot console");
326 entry
->command
= strdup("");
327 if (!entry
->command
) {
333 sprintf(entry
->key
, "%d", i
);
352 bootmenu_destroy(menu
);
356 static void bootmenu_show(int delay
)
361 char *command
= NULL
;
363 struct bootmenu_data
*bootmenu
;
364 struct bootmenu_entry
*iter
;
367 /* If delay is 0 do not create menu, just run first entry */
369 option
= bootmenu_getoption(0);
371 puts("bootmenu option 0 was not found\n");
374 sep
= strchr(option
, '=');
376 puts("bootmenu option 0 is invalid\n");
379 run_command(sep
+1, 0);
383 bootmenu
= bootmenu_create(delay
);
387 menu
= menu_create(NULL
, bootmenu
->delay
, 1, bootmenu_print_entry
,
388 bootmenu_choice_entry
, bootmenu
);
390 bootmenu_destroy(bootmenu
);
394 for (iter
= bootmenu
->first
; iter
; iter
= iter
->next
) {
395 if (!menu_item_add(menu
, iter
->key
, iter
))
399 /* Default menu entry is always first */
400 menu_default_set(menu
, "0");
402 puts(ANSI_CURSOR_HIDE
);
403 puts(ANSI_CLEAR_CONSOLE
);
404 printf(ANSI_CURSOR_POSITION
, 1, 1);
408 if (menu_get_choice(menu
, &choice
)) {
410 title
= strdup(iter
->title
);
411 command
= strdup(iter
->command
);
416 bootmenu_destroy(bootmenu
);
419 puts(ANSI_CURSOR_SHOW
);
420 puts(ANSI_CLEAR_CONSOLE
);
421 printf(ANSI_CURSOR_POSITION
, 1, 1);
424 if (title
&& command
) {
425 debug("Starting entry '%s'\n", title
);
427 run_command(command
, 0);
431 #ifdef CONFIG_POSTBOOTMENU
432 run_command(CONFIG_POSTBOOTMENU
, 0);
436 void menu_display_statusline(struct menu
*m
)
438 struct bootmenu_entry
*entry
;
439 struct bootmenu_data
*menu
;
441 if (menu_default_choice(m
, (void *)&entry
) < 0)
446 printf(ANSI_CURSOR_POSITION
, 1, 1);
447 puts(ANSI_CLEAR_LINE
);
448 printf(ANSI_CURSOR_POSITION
, 2, 1);
449 puts(" *** U-Boot Boot Menu ***");
450 puts(ANSI_CLEAR_LINE_TO_END
);
451 printf(ANSI_CURSOR_POSITION
, 3, 1);
452 puts(ANSI_CLEAR_LINE
);
454 /* First 3 lines are bootmenu header + 2 empty lines between entries */
455 printf(ANSI_CURSOR_POSITION
, menu
->count
+ 5, 1);
456 puts(ANSI_CLEAR_LINE
);
457 printf(ANSI_CURSOR_POSITION
, menu
->count
+ 6, 1);
458 puts(" Press UP/DOWN to move, ENTER to select");
459 puts(ANSI_CLEAR_LINE_TO_END
);
460 printf(ANSI_CURSOR_POSITION
, menu
->count
+ 7, 1);
461 puts(ANSI_CLEAR_LINE
);
464 #ifdef CONFIG_MENU_SHOW
465 int menu_show(int bootdelay
)
467 bootmenu_show(bootdelay
);
468 return -1; /* -1 - abort boot and run monitor code */
472 int do_bootmenu(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *const argv
[])
474 char *delay_str
= NULL
;
477 #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
478 delay
= CONFIG_BOOTDELAY
;
485 delay_str
= env_get("bootmenu_delay");
488 delay
= (int)simple_strtol(delay_str
, NULL
, 10);
490 bootmenu_show(delay
);
495 bootmenu
, 2, 1, do_bootmenu
,
496 "ANSI terminal bootmenu",
498 " - show ANSI terminal bootmenu with autoboot delay"