From b36908b21def4916b10c62ae3e28cacb9073556e Mon Sep 17 00:00:00 2001
From: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Date: Tue, 18 Aug 2009 22:28:09 +0200
Subject: [PATCH] add simple beep applet, second version

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
---
 include/applets.h   |    1 +
 include/usage.h     |    9 +++++
 miscutils/Config.in |    6 +++
 miscutils/Kbuild    |    1 +
 miscutils/beep.c    |  101 +++++++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 118 insertions(+), 0 deletions(-)
 create mode 100644 miscutils/beep.c

diff --git a/include/applets.h b/include/applets.h
index 32c596d..5ddbfe4 100644
--- a/include/applets.h
+++ b/include/applets.h
@@ -80,6 +80,7 @@ USE_ASH(APPLET(ash, _BB_DIR_BIN, _BB_SUID_NEVER))
 USE_AWK(APPLET_NOEXEC(awk, awk, _BB_DIR_USR_BIN, _BB_SUID_NEVER, awk))
 USE_BASENAME(APPLET_NOFORK(basename, basename, _BB_DIR_USR_BIN, _BB_SUID_NEVER, basename))
 USE_BBCONFIG(APPLET(bbconfig, _BB_DIR_BIN, _BB_SUID_NEVER))
+USE_BEEP(APPLET(beep, _BB_DIR_USR_BIN, _BB_SUID_NEVER))
 //USE_BBSH(APPLET(bbsh, _BB_DIR_BIN, _BB_SUID_NEVER))
 USE_BLKID(APPLET(blkid, _BB_DIR_SBIN, _BB_SUID_NEVER))
 USE_BRCTL(APPLET(brctl, _BB_DIR_USR_SBIN, _BB_SUID_NEVER))
diff --git a/include/usage.h b/include/usage.h
index bfacc56..ac8669c 100644
--- a/include/usage.h
+++ b/include/usage.h
@@ -142,6 +142,15 @@
        "$ basename /foo/bar.txt .txt\n" \
        "bar"
 
+#define beep_trivial_usage \
+       "-f freq -l length -d delay -r repetitions"
+#define beep_full_usage "\n\n" \
+	"Options:\n" \
+     "\n	-f	Frequency in Hz" \
+     "\n	-l	Length in ms" \
+     "\n	-d	Delay in ms" \
+     "\n	-r	Repetitions" \
+
 #define fbsplash_trivial_usage \
        "-s IMGFILE [-c] [-d DEV] [-i INIFILE] [-f CMD]"
 #define fbsplash_full_usage "\n\n" \
diff --git a/miscutils/Config.in b/miscutils/Config.in
index 7feaf4a..e56a3fc 100644
--- a/miscutils/Config.in
+++ b/miscutils/Config.in
@@ -19,6 +19,12 @@ config BBCONFIG
 	  The bbconfig applet will print the config file with which
 	  busybox was built.
 
+config BEEP
+	bool "beep"
+	default n
+	help
+	  The beep applets beeps in a given freq/Hz.
+
 config CHAT
 	bool "chat"
 	default n
diff --git a/miscutils/Kbuild b/miscutils/Kbuild
index 23d7d8d..8cf3406 100644
--- a/miscutils/Kbuild
+++ b/miscutils/Kbuild
@@ -7,6 +7,7 @@
 lib-y:=
 lib-$(CONFIG_ADJTIMEX)    += adjtimex.o
 lib-$(CONFIG_BBCONFIG)    += bbconfig.o
+lib-$(CONFIG_BEEP)        += beep.o
 lib-$(CONFIG_CHAT)        += chat.o
 lib-$(CONFIG_CHRT)        += chrt.o
 lib-$(CONFIG_CROND)       += crond.o
diff --git a/miscutils/beep.c b/miscutils/beep.c
new file mode 100644
index 0000000..81755d8
--- /dev/null
+++ b/miscutils/beep.c
@@ -0,0 +1,101 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * beep implementation for busybox
+ *
+ * Copyright (C) 2009 Bernhard Reutner-Fischer
+ *
+ * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
+ *
+ */
+
+#include "libbb.h"
+
+#include <linux/kd.h>
+#ifndef CLOCK_TICK_RATE
+#define CLOCK_TICK_RATE 1193180
+#endif
+
+#define OPT_f (1<<0)
+#define OPT_l (1<<1)
+#define OPT_d (1<<2)
+#define OPT_r (1<<3)
+/* defaults */
+#define FREQ (4440)
+#define LENGTH (50)
+#define DELAY (0)
+#define REPETITIONS (1)
+#if 0
+typedef struct beep {
+	struct beep *next;
+	unsigned freq, length, delay, rep;
+} beep_t;
+static beep_t* new_beep(void) {
+	beep_t *beep = (beep_t*)xzalloc(sizeof(beep_t));
+	beep->freq = FREQ;
+	beep->length = LENGTH;
+	beep->delay = DELAY;
+	beep->rep = REPETITIONS;
+	return beep;
+}
+#endif
+#define GET_ARG do { if (!*++opt) opt = *++argv; } while (0)
+#define NEW_BEEP() { \
+	freq = FREQ; \
+	length = LENGTH; \
+	delay = DELAY; \
+	rep = REPETITIONS; \
+	}
+
+int beep_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int beep_main(int argc UNUSED_PARAM, char **argv)
+{
+	int speaker = get_console_fd_or_die();
+	unsigned freq, length, delay, rep;
+	unsigned long ioctl_arg;
+
+	NEW_BEEP()
+	while (*++argv) {
+		char *opt = *argv;
+
+		while (*opt == '-')
+			++opt;
+
+		switch (*opt) {
+		case 'f':
+			GET_ARG;
+			freq = xatoul(opt);
+			continue;
+		case 'l':
+			GET_ARG;
+			length = xatoul(opt);
+			continue;
+		case 'd':
+			GET_ARG;
+			delay = xatoul(opt);
+			continue;
+		case 'r':
+			GET_ARG;
+			freq = xatoul(opt);
+			continue;
+		case 'n':
+			break;
+		default:
+			bb_show_usage();
+			break;
+		}
+		while (rep) {
+//bb_info_msg("rep[%d] freq=%d, length=%d, delay=%d", rep, freq, length, delay);
+			ioctl_arg = (int)(CLOCK_TICK_RATE/freq);
+			xioctl(speaker, KIOCSOUND, (void*)ioctl_arg);
+			usleep(1000 * length);
+			ioctl(speaker, KIOCSOUND, 0);
+			if (rep--)
+				usleep(delay);
+		}
+		if (opt && *opt == 'n')
+			NEW_BEEP()
+	}
+	if (ENABLE_FEATURE_CLEAN_UP)
+		close(speaker);
+	return EXIT_SUCCESS;
+}
-- 
1.6.4