2 * Copyright (C) 1998-2005 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"
27 #include <stdlib.h> /* EXIT_SUCCESS */
32 #include <linux/soundcard.h>
36 struct gengetopt_args_info args_info;
38 void para_log(__unused int ll, const char *fmt,...)
46 printf("%d:%02d:%02d ", tm->tm_hour, tm->tm_min, tm->tm_sec);
55 static int open_mixer(void)
59 if ((mixer_fd = open(args_info.mixer_device_arg, O_RDWR, 0)) < 0)
65 * get volume via mixer_fd
67 static int do_get_vol(int mixer_fd)
71 if (ioctl(mixer_fd, MIXER_READ(SOUND_MIXER_VOLUME), &volume) < 0)
73 /* take the mean value of left and right volume */
74 return (volume % 256 + (volume >> 8)) / 2;
78 * open mixer, get volume and close mixer
80 static int get_vol(void)
85 mixer_fd = open_mixer();
88 volume = do_get_vol(mixer_fd);
94 * set volume via mixer_fd
96 static int do_set_vol(int mixer_fd, int volume)
99 tmp = (volume << 8) + volume;
100 if (ioctl(mixer_fd, MIXER_WRITE(SOUND_MIXER_VOLUME), &tmp) < 0)
106 * open mixer, set volume and close mixer
108 static int set_vol(int volume)
113 mixer_fd = open_mixer();
117 if (!do_set_vol(mixer_fd, volume))
126 * Open mixer, get volume, fade to new_vol in secs seconds and
129 static int fade(int new_vol, unsigned int secs)
131 int vol, mixer_fd = -1, diff, incr, ret;
133 unsigned long long tmp, tmp2; /* Careful with that axe, Eugene! */
135 PARA_NOTICE_LOG("fading to %d in %d seconds\n", new_vol, secs);
139 mixer_fd = open_mixer();
142 vol = do_get_vol(mixer_fd);
145 diff = new_vol - vol;
151 incr = diff > 0? 1: -1;
152 diff = diff > 0? diff: -diff;
153 tmp = secs * 1000 / diff;
155 while ((new_vol - vol) * incr > 0) {
156 ts.tv_nsec = tmp2 * 1000000; /* really nec ?*/
157 ts.tv_sec = tmp / 1000; /* really nec ?*/
158 //printf("ts.tv_sec: %i\n", ts.tv_nsec);
160 if (!do_set_vol(mixer_fd, vol))
162 //printf("vol = %i\n", vol);
163 nanosleep(&ts, NULL);
171 static int client_cmd(const char *cmd,...)
173 int ret, fds[3] = {0, 0, 0};
175 char *cmdline = make_message(BINDIR "/para_client %s", cmd);
176 PARA_INFO_LOG("%s", cmdline);
177 ret = para_exec_cmdline_pid(&pid, cmdline, fds);
185 static void sweet_dreams(void)
187 time_t t1, wake_time_epoch;
190 int hour = args_info.wake_hour_arg;
191 int min = args_info.wake_min_arg;
192 char *fa_stream = args_info.fa_stream_arg;
193 char *wake_stream = args_info.wake_stream_arg;
194 //char *current_stream = stat_items[STREAM].content;
195 int wf = args_info.wake_fade_arg;
196 int sf = args_info.fa_fade_arg;
197 int wv = args_info.wake_vol_arg;
198 int sv = args_info.fa_vol_arg;
199 int iv = args_info.sleep_ivol_arg;
200 char *cmd, *sleep_stream = args_info.sleep_stream_given?
201 args_info.sleep_stream_arg : NULL;
204 PARA_INFO_LOG("initial volume: %d\n", iv);
206 cmd = make_message("csp %s\n", fa_stream);
212 cmd = make_message("csp %s\n", sleep_stream);
219 /* calculate wake time */
222 if (tm->tm_hour > hour || (tm->tm_hour == hour && tm->tm_min> min)) {
223 /* wake time is tomorrow */
231 wake_time_epoch = mktime(tm);
232 PARA_INFO_LOG("waketime: %s", asctime(tm));
233 while (wake_time_epoch > t1 + wf) {
234 delay = wake_time_epoch - t1 - wf;
235 PARA_INFO_LOG("sleeping %u seconds (%u:%02u)\n",
237 (delay % 3600) / 60);
241 cmd = make_message("csp %s\n", wake_stream);
245 PARA_INFO_LOG("%s", "fade complete, returning\n");
248 static void snooze(void)
250 if (get_vol() < args_info.snooze_out_vol_arg)
251 set_vol(args_info.snooze_out_vol_arg);
253 fade(args_info.snooze_out_vol_arg, args_info.snooze_out_fade_arg);
255 PARA_NOTICE_LOG("%d seconds snooze time...\n", args_info.snooze_time_arg);
256 sleep(args_info.snooze_time_arg);
258 fade(args_info.snooze_in_vol_arg, args_info.snooze_in_fade_arg);
261 static int configfile_exists(void)
263 static char *config_file;
265 if (!args_info.config_file_given) {
266 char *home = para_homedir();
267 const char *conf = ".paraslash/fade.conf";
269 config_file = make_message("%s/%s", home, conf);
271 args_info.config_file_arg = config_file;
273 return file_exists(args_info.config_file_arg);
277 int main(int argc, char *argv[])
281 if (cmdline_parser(argc, argv, &args_info))
283 ret = configfile_exists();
284 if (!ret && args_info.config_file_given) {
285 PARA_EMERG_LOG("can not read config file %s\n",
286 args_info.config_file_arg);
290 cmdline_parser_configfile(args_info.config_file_arg,
291 &args_info, 0, 0, 0);
292 if ((ret = open_mixer()) < 0) {
293 PARA_EMERG_LOG("can not open mixer device %s.",
294 args_info.mixer_device_arg);
300 if (!strcmp(args_info.mode_arg, "sleep")) {
304 if (!strcmp(args_info.mode_arg, "fade")) {
305 fade(args_info.fade_vol_arg, args_info.fade_time_arg);
308 if (!strcmp(args_info.mode_arg, "snooze")) {