2 * Copyright (C) 1998-2007 Andre Noll <maan@systemlinux.org>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
19 /** \file fade.c a volume fader and alarm clock */
21 #include "fade.cmdline.h"
28 #include <stdlib.h> /* EXIT_SUCCESS */
33 #include <linux/soundcard.h>
37 struct fade_args_info conf;
39 void para_log(__a_unused int ll, const char *fmt,...)
47 printf("%d:%02d:%02d ", tm->tm_hour, tm->tm_min, tm->tm_sec);
56 static int open_mixer(void)
58 return open(conf.mixer_device_arg, O_RDWR, 0);
62 * get volume via mixer_fd
64 static int do_get_vol(int mixer_fd)
68 if (ioctl(mixer_fd, MIXER_READ(SOUND_MIXER_VOLUME), &volume) < 0)
70 /* take the mean value of left and right volume */
71 return (volume % 256 + (volume >> 8)) / 2;
75 * open mixer, get volume and close mixer
77 static int get_vol(void)
82 mixer_fd = open_mixer();
85 volume = do_get_vol(mixer_fd);
91 * set volume via mixer_fd
93 static int do_set_vol(int mixer_fd, int volume)
96 tmp = (volume << 8) + volume;
97 if (ioctl(mixer_fd, MIXER_WRITE(SOUND_MIXER_VOLUME), &tmp) < 0)
103 * open mixer, set volume and close mixer
105 static int set_vol(int volume)
110 mixer_fd = open_mixer();
114 if (!do_set_vol(mixer_fd, volume))
123 * Open mixer, get volume, fade to new_vol in secs seconds and
126 static void fade(int new_vol, int fade_time)
128 int vol, mixer_fd = -1, diff, incr;
131 unsigned long long tmp, tmp2; /* Careful with that axe, Eugene! */
136 PARA_NOTICE_LOG("fading to %d in %d seconds\n", new_vol, secs);
137 mixer_fd = open_mixer();
140 vol = do_get_vol(mixer_fd);
143 diff = new_vol - vol;
148 incr = diff > 0? 1: -1;
149 diff = diff > 0? diff: -diff;
150 tmp = secs * 1000 / diff;
152 while ((new_vol - vol) * incr > 0) {
153 ts.tv_nsec = tmp2 * 1000000; /* really nec ?*/
154 ts.tv_sec = tmp / 1000; /* really nec ?*/
155 //printf("ts.tv_sec: %i\n", ts.tv_nsec);
157 if (!do_set_vol(mixer_fd, vol))
159 //printf("vol = %i\n", vol);
160 nanosleep(&ts, NULL);
167 static int client_cmd(const char *cmd,...)
169 int ret, fds[3] = {0, 0, 0};
171 char *cmdline = make_message(BINDIR "/para_client %s", cmd);
172 PARA_INFO_LOG("%s\n", cmdline);
173 ret = para_exec_cmdline_pid(&pid, cmdline, fds);
181 static void sweet_dreams(void)
183 time_t t1, wake_time_epoch;
186 int min = conf.wake_min_arg;
187 char *fa_stream = conf.fa_stream_arg;
188 char *wake_stream = conf.wake_stream_arg;
189 //char *current_stream = stat_items[STREAM].content;
190 int wf = conf.wake_fade_arg;
191 int sf = conf.fa_fade_arg;
192 int wv = conf.wake_vol_arg;
193 int sv = conf.fa_vol_arg;
194 int iv = conf.sleep_ivol_arg;
195 char *cmd, *sleep_stream = conf.sleep_stream_given?
196 conf.sleep_stream_arg : NULL;
198 /* calculate wake time */
200 if (conf.wake_hour_given) {
201 int hour = conf.wake_hour_arg;
203 if (tm->tm_hour > hour || (tm->tm_hour == hour && tm->tm_min> min)) {
204 t1 += 86400; /* wake time is tomorrow */
212 PARA_INFO_LOG("default wake time: %lu\n", t1);
215 wake_time_epoch = mktime(tm);
216 PARA_INFO_LOG("waketime: %s", asctime(tm));
218 PARA_INFO_LOG("initial volume: %d\n", iv);
220 cmd = make_message("csp %s\n", fa_stream);
226 cmd = make_message("csp %s\n", sleep_stream);
235 if (wake_time_epoch <= t1 + wf)
237 delay = wake_time_epoch - t1 - wf;
238 PARA_INFO_LOG("sleeping %u seconds (%u:%02u)\n",
240 (delay % 3600) / 60);
243 cmd = make_message("csp %s\n", wake_stream);
247 PARA_INFO_LOG("%s", "fade complete, returning\n");
250 static void snooze(void)
254 if (conf.snooze_time_arg <= 0)
256 sleep_time = conf.snooze_time_arg;
257 if (get_vol() < conf.snooze_out_vol_arg)
258 set_vol(conf.snooze_out_vol_arg);
260 fade(conf.snooze_out_vol_arg, conf.snooze_out_fade_arg);
262 PARA_NOTICE_LOG("%d seconds snooze time...\n", conf.snooze_time_arg);
265 fade(conf.snooze_in_vol_arg, conf.snooze_in_fade_arg);
268 static int configfile_exists(void)
270 static char *config_file;
272 if (!conf.config_file_given) {
273 char *home = para_homedir();
275 config_file = make_message("%s/.paraslash/fade.conf", home);
277 conf.config_file_arg = config_file;
279 return file_exists(conf.config_file_arg);
283 int main(int argc, char *argv[])
287 if (fade_cmdline_parser(argc, argv, &conf))
289 HANDLE_VERSION_FLAG("fade", conf);
290 ret = configfile_exists();
291 if (!ret && conf.config_file_given) {
292 PARA_EMERG_LOG("can not read config file %s\n",
293 conf.config_file_arg);
297 fade_cmdline_parser_configfile(conf.config_file_arg,
299 if ((ret = open_mixer()) < 0) {
300 PARA_EMERG_LOG("can not open mixer device %s.",
301 conf.mixer_device_arg);
307 if (!strcmp(conf.mode_arg, "sleep")) {
311 if (!strcmp(conf.mode_arg, "fade")) {
312 fade(conf.fade_vol_arg, conf.fade_time_arg);
315 if (!strcmp(conf.mode_arg, "snooze")) {