*
* Copyright (C) 2009 Bernhard Reutner-Fischer
*
- * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*
*/
+//config:config BEEP
+//config: bool "beep (3 kb)"
+//config: default y
+//config: select PLATFORM_LINUX
+//config: help
+//config: The beep applets beeps in a given freq/Hz.
+//config:
+//config:config FEATURE_BEEP_FREQ
+//config: int "default frequency"
+//config: range 20 50000 # allowing 0 here breaks the build
+//config: default 4000
+//config: depends on BEEP
+//config: help
+//config: Frequency for default beep.
+//config:
+//config:config FEATURE_BEEP_LENGTH_MS
+//config: int "default length"
+//config: range 0 2147483647
+//config: default 30
+//config: depends on BEEP
+//config: help
+//config: Length in ms for default beep.
+
+//applet:IF_BEEP(APPLET(beep, BB_DIR_USR_BIN, BB_SUID_DROP))
+
+//kbuild:lib-$(CONFIG_BEEP) += beep.o
+
+//usage:#define beep_trivial_usage
+//usage: "-f FREQ -l LEN -d DELAY -r COUNT -n"
+//usage:#define beep_full_usage "\n\n"
+//usage: " -f Frequency in Hz"
+//usage: "\n -l Length in ms"
+//usage: "\n -d Delay in ms"
+//usage: "\n -r Repetitions"
+//usage: "\n -n Start new tone"
+
#include "libbb.h"
#include <linux/kd.h>
#ifndef CLOCK_TICK_RATE
-#define CLOCK_TICK_RATE 1193180
+# 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)
+#ifndef CONFIG_FEATURE_BEEP_FREQ
+# define FREQ (4000)
+#else
+# define FREQ (CONFIG_FEATURE_BEEP_FREQ)
+#endif
+#ifndef CONFIG_FEATURE_BEEP_LENGTH_MS
+# define LENGTH (30)
+#else
+# define LENGTH (CONFIG_FEATURE_BEEP_LENGTH_MS)
+#endif
#define DELAY (0)
#define REPETITIONS (1)
-#define GET_ARG do { if (!*++opt) opt = *++argv; if (opt == NULL) bb_show_usage();} 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 beep_main(int argc, char **argv)
{
int speaker = get_console_fd_or_die();
- unsigned freq, length, delay, rep;
- unsigned long ioctl_arg;
- char *opt = NULL;
- bool do_parse = true;
-
- NEW_BEEP()
- while (*argv && *++argv) {
- opt = *argv;
+ unsigned tickrate_div_freq = tickrate_div_freq; /* for compiler */
+ unsigned length = length;
+ unsigned delay = delay;
+ unsigned rep = rep;
+ int c;
- while (*opt == '-')
- ++opt;
- if (do_parse)
- 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;
- rep = xatoul(opt);
- continue;
- case 'n':
- break;
- default:
- bb_show_usage();
- break;
- }
- again:
+ c = 'n';
+ while (c != -1) {
+ if (c == 'n') {
+ tickrate_div_freq = CLOCK_TICK_RATE / FREQ;
+ length = LENGTH;
+ delay = DELAY;
+ rep = REPETITIONS;
+ }
+ c = getopt(argc, argv, "f:l:d:r:n");
+/* TODO: -s, -c:
+ * pipe stdin to stdout, but also beep after each line (-s) or char (-c)
+ */
+ switch (c) {
+ case 'f':
+/* TODO: what "-f 0" should do? */
+ tickrate_div_freq = (unsigned)CLOCK_TICK_RATE / xatou(optarg);
+ continue;
+ case 'l':
+ length = xatou(optarg);
+ continue;
+ case 'd':
+/* TODO:
+ * -d N, -D N
+ * specify a delay of N milliseconds between repetitions.
+ * -d specifies that this delay should only occur between beeps,
+ * that is, it should not occur after the last repetition.
+ * -D indicates that the delay should occur after every repetition
+ */
+ delay = xatou(optarg);
+ continue;
+ case 'r':
+ rep = xatou(optarg);
+ continue;
+ case 'n':
+ case -1:
+ break;
+ default:
+ bb_show_usage();
+ }
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);
+//bb_error_msg("rep[%d] freq=%d, length=%d, delay=%d", rep, freq, length, delay);
+ xioctl(speaker, KIOCSOUND, (void*)(uintptr_t)tickrate_div_freq);
usleep(1000 * length);
- ioctl(speaker, KIOCSOUND, 0);
- if (rep--)
- usleep(delay);
+ ioctl(speaker, KIOCSOUND, (void*)0);
+ if (--rep)
+ usleep(1000 * delay);
}
- if (opt && *opt == 'n')
- NEW_BEEP()
- if (!do_parse && *argv == NULL)
- goto out;
}
- do_parse = false;
- goto again;
- out:
+
if (ENABLE_FEATURE_CLEAN_UP)
close(speaker);
return EXIT_SUCCESS;
-n -f$g -l200 -r2 \
-n -f$f -l200 \
-n -f$e -l200 \
- -n -f$d -l200 \
- -n -f$c -l200 -r2 \
- -n -f$d -l200 \
- -n -f$e -l200 \
- -n -f$e -l400 \
+ -n -f$d -l200 \
+ -n -f$c -l200 -r2 \
+ -n -f$d -l200 \
+ -n -f$e -l200 \
+ -n -f$e -l400 \
-n -f$d -l100 \
-n -f$d -l200 \
*/
projects / oweals / busybox.git / blobdiff