[U-Boot] [PATCH 14/15] New command bootmenu: ANSI terminal Boot Menu support
Pali Rohár
pali.rohar at gmail.com
Sun Dec 18 22:34:10 CET 2011
* Configuration is done via env variables bootmenu_delay and bootmenu_<num>:
bootmenu_delay=<delay>
bootmenu_<num>="<title>=<commands>"
(title and commands are separated by first char '=')
<delay> is delay in seconds of autobooting first entry
<num> is boot menu entry, starting from zero
<title> is text shown in boot screen
<commands> are commands which will be executed when menu entry is selected
* First argument of bootmenu command override bootmenu_delay env
* If env bootmenu_delay or bootmenu arg is not specified, delay is 10 seconds
* If delay is 0, no entry will be shown on screen and first will be called
* If delay is less then 0, no autoboot delay will be used
* Boot Menu will stop finding next menu entry if last was not defined
* Boot Menu always add menu entry "U-Boot console" at end of all entries
* Example using:
setenv bootmenu_0 Boot 1. kernel=bootm 0x82000000 # Set first menu entry
setenv bootmenu_1 Boot 2. kernel=bootm 0x83000000 # Set second menu entry
setenv bootmenu_2 Reset board=reset # Set third menu entry
setenv bootmenu_3 U-Boot boot order=boot # Set fourth menu entry
setenv bootmenu_4 # Empty string is end of all bootmenu entries
bootmenu 20 # Run bootmenu with autoboot delay 20s
Signed-off-by: Pali Rohár <pali.rohar at gmail.com>
---
common/Makefile | 1 +
common/cmd_bootmenu.c | 366 ++++++++++++++++++++++++++++++++++++++++++++++
include/config_cmd_all.h | 1 +
3 files changed, 368 insertions(+), 0 deletions(-)
create mode 100644 common/cmd_bootmenu.c
diff --git a/common/Makefile b/common/Makefile
index e1efd45..7402bfb 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -67,6 +67,7 @@ COBJS-$(CONFIG_CMD_SOURCE) += cmd_source.o
COBJS-$(CONFIG_CMD_BDI) += cmd_bdinfo.o
COBJS-$(CONFIG_CMD_BEDBUG) += bedbug.o cmd_bedbug.o
COBJS-$(CONFIG_CMD_BMP) += cmd_bmp.o
+COBJS-$(CONFIG_CMD_BOOTMENU) += cmd_bootmenu.o
COBJS-$(CONFIG_CMD_BOOTLDR) += cmd_bootldr.o
COBJS-$(CONFIG_CMD_CACHE) += cmd_cache.o
COBJS-$(CONFIG_CMD_CLEAR) += cmd_clear.o
diff --git a/common/cmd_bootmenu.c b/common/cmd_bootmenu.c
new file mode 100644
index 0000000..931ed18
--- /dev/null
+++ b/common/cmd_bootmenu.c
@@ -0,0 +1,366 @@
+/*
+ * (C) Copyright 2011 Pali Rohár <pali.rohar at gmail.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <watchdog.h>
+#include <linux/string.h>
+
+#ifdef CONFIG_SYS_HUSH_PARSER
+#include <hush.h>
+#endif
+
+static char *get_option(int n)
+{
+
+ char name[] = "bootmenu_\0\0";
+
+ if (n < 0 || n > 99)
+ return NULL;
+
+ sprintf(name+9, "%d", n);
+
+ return getenv(name);
+
+}
+
+static char *get_end_of_title(char *str)
+{
+
+ if (!str)
+ return NULL;
+
+ return strchr(str, '=');
+
+}
+
+static int print_title(char *begin, char *end)
+{
+
+ if (!begin || !end || end < begin)
+ return 1;
+
+ while (begin != end)
+ putc(*(begin++));
+
+ return 0;
+
+}
+
+static int print_entry(int n, int reverse)
+{
+
+ char *str = get_option(n);
+ char *end = get_end_of_title(str);
+
+ if (!end)
+ return 1;
+
+ printf(ANSI_CURSOR_POSITION, n+4, 1);
+
+ if (reverse)
+ puts(ANSI_COLOR_REVERSE);
+
+ puts(" ");
+ print_title(str, end);
+ puts(ANSI_CLEAR_LINE_TO_END);
+
+ if (reverse)
+ puts(ANSI_COLOR_RESET);
+
+ return 0;
+
+}
+
+static int print_menu(int active)
+{
+
+ int n = 0;
+
+ printf(ANSI_CURSOR_POSITION, 1, 1);
+ puts(ANSI_CLEAR_LINE);
+ printf(ANSI_CURSOR_POSITION, 2, 1);
+ puts(" *** U-Boot BOOT MENU ***");
+ puts(ANSI_CLEAR_LINE_TO_END);
+ printf(ANSI_CURSOR_POSITION, 3, 1);
+ puts(ANSI_CLEAR_LINE);
+
+ while (1) {
+
+ int ret = print_entry(n, n == active ? 1 : 0);
+
+ if (ret == 1)
+ break;
+
+ ++n;
+
+ }
+
+ printf(ANSI_CURSOR_POSITION, n+4, 1);
+
+ if (n == active)
+ puts(ANSI_COLOR_REVERSE);
+
+ puts(" U-Boot console");
+ puts(ANSI_CLEAR_LINE_TO_END);
+
+ if (n == active)
+ puts(ANSI_COLOR_RESET);
+
+ printf(ANSI_CURSOR_POSITION, n+5, 1);
+ puts(ANSI_CLEAR_LINE);
+ printf(ANSI_CURSOR_POSITION, n+6, 1);
+ puts(" Press UP/DOWN to move, ENTER to select");
+ puts(ANSI_CLEAR_LINE_TO_END);
+ printf(ANSI_CURSOR_POSITION, n+7, 1);
+ puts(ANSI_CLEAR_LINE);
+
+ return n;
+
+}
+
+int do_bootmenu(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
+{
+
+ int active = 0;
+ int abort = 0;
+ int key = 0; /* 0 - NONE, 1 - UP, 2 - DOWN, 3 - SELECT */
+ int esc = 0;
+ int count = 0;
+ int delay = 10;
+ int instant = 0;
+ char *delay_str = NULL;
+
+ if (argc >= 2)
+ delay_str = argv[1];
+
+ if (!delay_str)
+ delay_str = getenv("bootmenu_delay");
+
+ if (delay_str)
+ delay = (int)simple_strtol(delay_str, NULL, 10);
+
+ if (delay == 0) {
+
+ /* prevent setting U-Boot console as first menu entry */
+ if (get_end_of_title(get_option(0)))
+ count = 1;
+
+ instant = 1;
+
+ }
+
+ if (delay < 0)
+ abort = 1;
+
+ if (!instant) {
+
+ puts(ANSI_CURSOR_HIDE);
+ puts(ANSI_CLEAR_CONSOLE);
+ printf(ANSI_CURSOR_POSITION, 1, 1);
+
+ }
+
+ while (1) {
+
+ if (abort || delay > 0)
+ count = print_menu(active);
+
+ if (!abort) {
+
+ if (delay > 0)
+ printf(" Hit any key to stop autoboot: %2d ",
+ delay);
+
+ while (delay > 0) {
+
+ int i;
+
+ for (i = 0; i < 100; ++i) {
+
+ if (tstc()) {
+
+ abort = 1;
+ key = getc();
+
+ if (key == '\e') {
+ esc = 1;
+ key = 0;
+ } else if (key == '\r')
+ key = 3;
+ else
+ key = 0;
+
+ break;
+
+ }
+
+ WATCHDOG_RESET();
+ udelay(10000);
+
+ }
+
+ if (abort)
+ break;
+
+ --delay;
+ printf("\b\b\b%2d ", delay);
+
+ }
+
+ if (delay <= 0)
+ key = 3;
+
+ } else {
+
+ while (!tstc()) {
+
+ WATCHDOG_RESET();
+ udelay(10000);
+
+ }
+
+ key = getc();
+
+ if (esc == 0) {
+
+ if (key == '\e') {
+ esc = 1;
+ key = 0;
+ }
+
+ } else if (esc == 1) {
+
+ if (key == '[') {
+ esc = 2;
+ key = 0;
+ } else
+ esc = 0;
+
+ } else if (esc == 2 || esc == 3) {
+
+ if (esc == 2 && key == '1') {
+ esc = 3;
+ key = 0;
+ } else
+ esc = 0;
+
+ if (key == 'A')
+ key = 1;
+ else if (key == 'B')
+ key = 2;
+ else
+ key = 0;
+
+ }
+
+ if (key == '\r')
+ key = 3;
+
+ }
+
+ if (key == 1) {
+
+ if (active > 0)
+ --active;
+
+ } else if (key == 2) {
+
+ if (active < count)
+ ++active;
+
+ } else if (key == 3) {
+
+ char *str;
+ char *end;
+
+ putc('\n');
+
+ if (!instant) {
+
+ puts(ANSI_CURSOR_SHOW);
+ puts(ANSI_CLEAR_CONSOLE);
+ printf(ANSI_CURSOR_POSITION, 1, 1);
+
+ }
+
+ WATCHDOG_RESET();
+
+ /* last entry is always U-Boot console */
+ if (active == count) {
+
+ puts("Starting U-Boot console\n\n");
+ return 0;
+
+ }
+
+ str = get_option(active);
+ end = get_end_of_title(str);
+
+ if (!end) {
+
+ printf("Invalid Boot Menu entry %d\n", active);
+ puts("Starting U-Boot console\n\n");
+ return 0;
+
+ }
+
+ if (!end[1]) {
+
+ printf("Invalid Boot Menu entry %d: ", active);
+ print_title(str, end);
+ puts("\nStarting U-Boot console\n\n");
+ return 0;
+
+ }
+
+ printf("Booting Boot Menu entry %d: ", active);
+ print_title(str, end);
+ puts(" ...\n\n");
+
+#ifndef CONFIG_SYS_HUSH_PARSER
+ run_command(end+1, 0);
+#else
+ parse_string_outer(end+1, FLAG_PARSE_SEMICOLON |
+ FLAG_EXIT_FROM_LOOP);
+#endif
+
+ printf("\nFailed booting Boot Menu entry %d: ", active);
+ print_title(str, end);
+ puts("\nStarting U-Boot console\n\n");
+ return 0;
+
+ }
+
+ }
+
+ /* never happends */
+ return 1;
+
+}
+
+U_BOOT_CMD(
+ bootmenu, 2, 1, do_bootmenu,
+ "ANSI terminal bootmenu",
+ "[delay]\n"
+ " - show ANSI terminal bootmenu with autoboot delay (default 10s)"
+);
diff --git a/include/config_cmd_all.h b/include/config_cmd_all.h
index 3f25eba..8c0a648 100644
--- a/include/config_cmd_all.h
+++ b/include/config_cmd_all.h
@@ -20,6 +20,7 @@
#define CONFIG_CMD_BEDBUG /* Include BedBug Debugger */
#define CONFIG_CMD_BMP /* BMP support */
#define CONFIG_CMD_BOOTD /* bootd */
+#define CONFIG_CMD_BOOTMENU /* ANSI terminal Boot Menu */
#define CONFIG_CMD_BSP /* Board Specific functions */
#define CONFIG_CMD_CACHE /* icache, dcache */
#define CONFIG_CMD_CDP /* Cisco Discovery Protocol */
--
1.7.5.4
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