2 * Copyright (C) 1998 Andre Noll <maan@tuebingen.mpg.de>
4 * Licensed under the GPL v2. For licencing details see COPYING.
7 /** \file fade.c A volume fader and alarm clock for OSS. */
11 #include "fade.cmdline.h"
20 /** Array of error strings. */
23 static struct fade_args_info conf;
25 enum mixer_id {MIXER_ENUM};
26 static char *mixer_name[] = {MIXER_NAMES};
28 static struct mixer supported_mixer[] = {MIXER_ARRAY};
29 #define FOR_EACH_MIXER(i) for ((i) = 0; (i) < NUM_SUPPORTED_MIXERS; (i)++)
32 static __printf_2_3 void date_log(int ll, const char *fmt, ...)
42 fprintf(stderr, "%d:%02d:%02d ", tm->tm_hour, tm->tm_min, tm->tm_sec);
47 __printf_2_3 void (*para_log)(int, const char*, ...) = date_log;
49 static int set_channel(struct mixer *m, struct mixer_handle *h, const char *channel)
52 PARA_NOTICE_LOG("using %s mixer channel\n", channel?
54 return m->set_channel(h, channel);
57 /* Fade to new volume in fade_time seconds. */
58 static int fade(struct mixer *m, struct mixer_handle *h, int new_vol, int fade_time)
60 int vol, diff, incr, ret;
63 unsigned long long tmp, tmp2; /* Careful with that axe, Eugene! */
66 return m->set(h, new_vol);
72 PARA_NOTICE_LOG("fading %s from %d to %d in %u seconds\n",
73 conf.mixer_channel_arg, vol, new_vol, secs);
79 incr = diff > 0? 1: -1;
80 diff = diff > 0? diff: -diff;
81 tmp = secs * 1000 / diff;
83 while ((new_vol - vol) * incr > 0) {
84 ts.tv_nsec = tmp2 * 1000000; /* really nec ?*/
85 ts.tv_sec = tmp / 1000; /* really nec ?*/
86 //printf("ts.tv_sec: %i\n", ts.tv_nsec);
91 //printf("vol = %i\n", vol);
98 static void client_cmd(const char *cmd)
100 int ret, status, fds[3] = {0, 0, 0};
102 char *cmdline = make_message(BINDIR "/para_client %s", cmd);
104 PARA_NOTICE_LOG("%s\n", cmdline);
105 ret = para_exec_cmdline_pid(&pid, cmdline, fds);
108 PARA_ERROR_LOG("%s\n", para_strerror(-ret));
112 pid = waitpid(pid, &status, 0);
113 while (pid == -1 && errno == EINTR);
115 PARA_ERROR_LOG("%s\n", strerror(errno));
118 if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
122 PARA_EMERG_LOG("command \"%s\" failed\n", cmd);
126 static void change_afs_mode(char *afs_mode)
133 cmd = make_message("select %s", afs_mode);
138 static int set_initial_volume(struct mixer *m, struct mixer_handle *h)
142 for (i = 0; i < conf.ivol_given; i++) {
143 char *p, *ch, *arg = para_strdup(conf.ivol_arg[i]);
145 p = strchr(arg, ':');
154 ret = para_atoi32(p, &iv);
159 ret = set_channel(m, h, ch);
163 PARA_WARNING_LOG("ignoring channel %s\n", ch);
166 PARA_INFO_LOG("initial volume %s: %d\n", ch, iv);
176 static int sweet_dreams(struct mixer *m, struct mixer_handle *h)
178 time_t t1, wake_time_epoch;
181 int ret, min = conf.wake_min_arg;
182 char *fo_mood = conf.fo_mood_arg;
183 char *fi_mood = conf.fi_mood_arg;
184 char *sleep_mood = conf.sleep_mood_arg;
185 int fit = conf.fi_time_arg;
186 int fot = conf.fo_time_arg;
187 int fiv = conf.fi_vol_arg;
188 int fov = conf.fo_vol_arg;
190 /* calculate wake time */
192 if (conf.wake_hour_given) {
193 int hour = conf.wake_hour_arg;
195 if (tm->tm_hour > hour || (tm->tm_hour == hour && tm->tm_min> min)) {
196 t1 += 86400; /* wake time is tomorrow */
203 t1 += 9 * 60 * 60; /* nine hours from now */
204 PARA_INFO_LOG("default wake time: %lu\n", (long unsigned)t1);
207 wake_time_epoch = mktime(tm);
208 PARA_INFO_LOG("waketime: %d:%02d\n", tm->tm_hour, tm->tm_min);
212 ret = set_initial_volume(m, h);
215 change_afs_mode(fo_mood);
217 ret = set_channel(m, h, conf.mixer_channel_arg);
220 ret = fade(m, h, fov, fot);
224 ret = m->set(h, fov);
228 if (conf.sleep_mood_given) {
229 change_afs_mode(sleep_mood);
235 change_afs_mode(fi_mood);
238 if (wake_time_epoch <= t1 + fit)
240 delay = wake_time_epoch - t1 - fit;
241 PARA_INFO_LOG("sleeping %u seconds (%u:%02u)\n",
243 (delay % 3600) / 60);
247 ret = fade(m, h, fiv, fit);
248 PARA_INFO_LOG("fade complete, returning\n");
252 static int snooze(struct mixer *m, struct mixer_handle *h)
256 if (conf.so_time_arg <= 0)
262 if (val < conf.so_vol_arg)
263 ret = m->set(h, conf.so_vol_arg);
265 ret = fade(m, h, conf.so_vol_arg, conf.so_time_arg);
269 PARA_NOTICE_LOG("%d seconds snooze time...\n", conf.snooze_time_arg);
270 sleep(conf.snooze_time_arg);
272 return fade(m, h, conf.si_vol_arg, conf.si_time_arg);
275 static int configfile_exists(void)
277 static char *config_file;
279 if (!conf.config_file_given) {
280 char *home = para_homedir();
282 config_file = make_message("%s/.paraslash/fade.conf", home);
284 conf.config_file_arg = config_file;
286 return file_exists(conf.config_file_arg);
289 static void init_mixers(void)
294 struct mixer *m = &supported_mixer[i];
295 PARA_DEBUG_LOG("initializing mixer API #%d (%s)\n",
301 static int set_val(struct mixer *m, struct mixer_handle *h)
303 return m->set(h, conf.val_arg);
306 static struct mixer *get_mixer_or_die(void)
310 if (!conf.mixer_api_given)
314 if (!strcmp(mixer_name[i], conf.mixer_api_arg))
316 if (i < NUM_SUPPORTED_MIXERS) {
317 PARA_NOTICE_LOG("using %s mixer API\n", mixer_name[i]);
318 return supported_mixer + i;
320 printf("available mixer APIs: ");
322 int d = (i == DEFAULT_MIXER);
323 printf("%s%s%s ", d? "[" : "", mixer_name[i], d? "]" : "");
329 __noreturn static void print_help_and_die(void)
331 struct ggo_help h = DEFINE_GGO_HELP(fade);
332 bool d = conf.detailed_help_given;
334 ggo_print_help(&h, d? GPH_STANDARD_FLAGS_DETAILED : GPH_STANDARD_FLAGS);
339 * The main function of para_fade.
341 * The executable is linked with the alsa or the oss mixer API, or both. It has
342 * a custom log function which prefixes log messages with the current date.
344 * \param argc Argument counter.
345 * \param argv Argument vector.
347 * \return EXIT_SUCCESS or EXIT_FAILURE.
349 int main(int argc, char *argv[])
353 struct mixer_handle *h = NULL;
355 fade_cmdline_parser(argc, argv, &conf);
356 loglevel = get_loglevel_by_name(conf.loglevel_arg);
357 version_handle_flag("fade", conf.version_given);
358 if (conf.help_given || conf.detailed_help_given)
359 print_help_and_die();
360 ret = configfile_exists();
361 if (!ret && conf.config_file_given) {
362 PARA_EMERG_LOG("can not read config file %s\n",
363 conf.config_file_arg);
367 struct fade_cmdline_parser_params params = {
371 .check_ambiguity = 0,
374 fade_cmdline_parser_config_file(conf.config_file_arg,
376 loglevel = get_loglevel_by_name(conf.loglevel_arg);
379 m = get_mixer_or_die();
380 ret = m->open(conf.mixer_device_arg, &h);
383 ret = set_channel(m, h, conf.mixer_channel_arg);
384 if (ret == -E_BAD_CHANNEL) {
385 char *channels = m->get_channels(h);
386 printf("Available channels: %s\n", channels);
391 switch (conf.mode_arg) {
393 ret = fade(m, h, conf.fade_vol_arg, conf.fade_time_arg);
395 case mode_arg_snooze:
401 default: /* sleep mode */
402 ret = sweet_dreams(m, h);
408 PARA_EMERG_LOG("%s\n", para_strerror(-ret));
409 return ret < 0? EXIT_FAILURE : EXIT_SUCCESS;