2 * Copyright (C) 1998-2007 Andre Noll <maan@systemlinux.org>
4 * Licensed under the GPL v2. For licencing details see COPYING.
7 /** \file fade.c a volume fader and alarm clock */
12 #include "fade.cmdline.h"
19 #include <stdlib.h> /* EXIT_SUCCESS */
24 #include <linux/soundcard.h>
28 struct fade_args_info conf;
30 void para_log(__a_unused int ll, const char *fmt,...)
38 printf("%d:%02d:%02d ", tm->tm_hour, tm->tm_min, tm->tm_sec);
47 static int open_mixer(void)
49 return open(conf.mixer_device_arg, O_RDWR, 0);
53 * get volume via mixer_fd
55 static int do_get_vol(int mixer_fd)
59 if (ioctl(mixer_fd, MIXER_READ(SOUND_MIXER_VOLUME), &volume) < 0)
61 /* take the mean value of left and right volume */
62 return (volume % 256 + (volume >> 8)) / 2;
66 * open mixer, get volume and close mixer
68 static int get_vol(void)
73 mixer_fd = open_mixer();
76 volume = do_get_vol(mixer_fd);
82 * set volume via mixer_fd
84 static int do_set_vol(int mixer_fd, int volume)
86 int tmp = (volume << 8) + volume;
88 if (ioctl(mixer_fd, MIXER_WRITE(SOUND_MIXER_VOLUME), &tmp) < 0)
94 * open mixer, set volume and close mixer
96 static int set_vol(int volume)
98 int mixer_fd, ret = open_mixer();
103 ret = do_set_vol(mixer_fd, volume);
109 * Open mixer, get volume, fade to new_vol in secs seconds and
112 static void fade(int new_vol, int fade_time)
114 int vol, mixer_fd, diff, incr;
117 unsigned long long tmp, tmp2; /* Careful with that axe, Eugene! */
122 PARA_NOTICE_LOG("fading to %d in %d seconds\n", new_vol, secs);
123 mixer_fd = open_mixer();
126 vol = do_get_vol(mixer_fd);
129 diff = new_vol - vol;
134 incr = diff > 0? 1: -1;
135 diff = diff > 0? diff: -diff;
136 tmp = secs * 1000 / diff;
138 while ((new_vol - vol) * incr > 0) {
139 ts.tv_nsec = tmp2 * 1000000; /* really nec ?*/
140 ts.tv_sec = tmp / 1000; /* really nec ?*/
141 //printf("ts.tv_sec: %i\n", ts.tv_nsec);
143 if (do_set_vol(mixer_fd, vol) < 0)
145 //printf("vol = %i\n", vol);
146 nanosleep(&ts, NULL);
152 static int client_cmd(const char *cmd,...)
154 int ret, fds[3] = {0, 0, 0};
156 char *cmdline = make_message(BINDIR "/para_client %s", cmd);
158 PARA_INFO_LOG("%s\n", cmdline);
159 ret = para_exec_cmdline_pid(&pid, cmdline, fds);
164 static void change_afs_mode_and_play(char *afs_mode)
171 cmd = make_message("select %s\n", afs_mode);
180 static void sweet_dreams(void)
182 time_t t1, wake_time_epoch;
185 int min = conf.wake_min_arg;
186 char *fa_mode = conf.fa_mode_arg;
187 char *wake_mode = conf.wake_mode_arg;
188 char *sleep_mode = conf.sleep_mode_arg;
189 int wf = conf.wake_fade_arg;
190 int sf = conf.fa_fade_arg;
191 int wv = conf.wake_vol_arg;
192 int sv = conf.fa_vol_arg;
193 int iv = conf.sleep_ivol_arg;
195 /* calculate wake time */
197 if (conf.wake_hour_given) {
198 int hour = conf.wake_hour_arg;
200 if (tm->tm_hour > hour || (tm->tm_hour == hour && tm->tm_min> min)) {
201 t1 += 86400; /* wake time is tomorrow */
208 t1 += 9 * 60 * 60; /* nine hours from now */
209 PARA_INFO_LOG("default wake time: %lu\n", t1);
212 wake_time_epoch = mktime(tm);
213 PARA_INFO_LOG("waketime: %s", asctime(tm));
217 PARA_INFO_LOG("initial volume: %d\n", iv);
219 change_afs_mode_and_play(fa_mode);
223 change_afs_mode_and_play(sleep_mode);
228 if (wake_time_epoch <= t1 + wf)
230 delay = wake_time_epoch - t1 - wf;
231 PARA_INFO_LOG("sleeping %u seconds (%u:%02u)\n",
233 (delay % 3600) / 60);
236 change_afs_mode_and_play(wake_mode);
238 PARA_INFO_LOG("fade complete, returning\n");
241 static void snooze(void)
245 if (conf.snooze_time_arg <= 0)
247 sleep_time = conf.snooze_time_arg;
248 if (get_vol() < conf.snooze_out_vol_arg)
249 set_vol(conf.snooze_out_vol_arg);
251 fade(conf.snooze_out_vol_arg, conf.snooze_out_fade_arg);
253 PARA_NOTICE_LOG("%d seconds snooze time...\n", conf.snooze_time_arg);
256 fade(conf.snooze_in_vol_arg, conf.snooze_in_fade_arg);
259 static int configfile_exists(void)
261 static char *config_file;
263 if (!conf.config_file_given) {
264 char *home = para_homedir();
266 config_file = make_message("%s/.paraslash/fade.conf", home);
268 conf.config_file_arg = config_file;
270 return file_exists(conf.config_file_arg);
274 int main(int argc, char *argv[])
278 if (fade_cmdline_parser(argc, argv, &conf))
280 HANDLE_VERSION_FLAG("fade", conf);
281 ret = configfile_exists();
282 if (!ret && conf.config_file_given) {
283 PARA_EMERG_LOG("can not read config file %s\n",
284 conf.config_file_arg);
288 struct fade_cmdline_parser_params params = {
294 fade_cmdline_parser_config_file(conf.config_file_arg,
299 PARA_EMERG_LOG("can not open mixer device %s.",
300 conf.mixer_device_arg);
305 // setlinebuf(stdout);
306 if (!strcmp(conf.mode_arg, "sleep")) {
310 if (!strcmp(conf.mode_arg, "fade")) {
311 fade(conf.fade_vol_arg, conf.fade_time_arg);
314 if (!strcmp(conf.mode_arg, "snooze")) {
320 return ret < 0? EXIT_FAILURE : EXIT_SUCCESS;