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"
28 #include <stdlib.h> /* EXIT_SUCCESS */
33 #include <linux/soundcard.h>
37 struct gengetopt_args_info args_info;
39 void para_log(__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)
60 if ((mixer_fd = open(args_info.mixer_device_arg, O_RDWR, 0)) < 0)
66 * get volume via mixer_fd
68 static int do_get_vol(int mixer_fd)
72 if (ioctl(mixer_fd, MIXER_READ(SOUND_MIXER_VOLUME), &volume) < 0)
74 /* take the mean value of left and right volume */
75 return (volume % 256 + (volume >> 8)) / 2;
79 * open mixer, get volume and close mixer
81 static int get_vol(void)
86 mixer_fd = open_mixer();
89 volume = do_get_vol(mixer_fd);
95 * set volume via mixer_fd
97 static int do_set_vol(int mixer_fd, int volume)
100 tmp = (volume << 8) + volume;
101 if (ioctl(mixer_fd, MIXER_WRITE(SOUND_MIXER_VOLUME), &tmp) < 0)
107 * open mixer, set volume and close mixer
109 static int set_vol(int volume)
114 mixer_fd = open_mixer();
118 if (!do_set_vol(mixer_fd, volume))
127 * Open mixer, get volume, fade to new_vol in secs seconds and
130 static int fade(int new_vol, unsigned int secs)
132 int vol, mixer_fd = -1, diff, incr, ret;
134 unsigned long long tmp, tmp2; /* Careful with that axe, Eugene! */
136 PARA_NOTICE_LOG("fading to %d in %d seconds\n", new_vol, secs);
140 mixer_fd = open_mixer();
143 vol = do_get_vol(mixer_fd);
146 diff = new_vol - vol;
152 incr = diff > 0? 1: -1;
153 diff = diff > 0? diff: -diff;
154 tmp = secs * 1000 / diff;
156 while ((new_vol - vol) * incr > 0) {
157 ts.tv_nsec = tmp2 * 1000000; /* really nec ?*/
158 ts.tv_sec = tmp / 1000; /* really nec ?*/
159 //printf("ts.tv_sec: %i\n", ts.tv_nsec);
161 if (!do_set_vol(mixer_fd, vol))
163 //printf("vol = %i\n", vol);
164 nanosleep(&ts, NULL);
172 static int client_cmd(const char *cmd,...)
174 int ret, fds[3] = {0, 0, 0};
176 char *cmdline = make_message(BINDIR "/para_client %s", cmd);
177 PARA_INFO_LOG("%s", cmdline);
178 ret = para_exec_cmdline_pid(&pid, cmdline, fds);
186 static void sweet_dreams(void)
188 time_t t1, wake_time_epoch;
191 int hour = args_info.wake_hour_arg;
192 int min = args_info.wake_min_arg;
193 char *fa_stream = args_info.fa_stream_arg;
194 char *wake_stream = args_info.wake_stream_arg;
195 //char *current_stream = stat_items[STREAM].content;
196 int wf = args_info.wake_fade_arg;
197 int sf = args_info.fa_fade_arg;
198 int wv = args_info.wake_vol_arg;
199 int sv = args_info.fa_vol_arg;
200 int iv = args_info.sleep_ivol_arg;
201 char *cmd, *sleep_stream = args_info.sleep_stream_given?
202 args_info.sleep_stream_arg : NULL;
205 PARA_INFO_LOG("initial volume: %d\n", iv);
207 cmd = make_message("csp %s\n", fa_stream);
213 cmd = make_message("csp %s\n", sleep_stream);
220 /* calculate wake time */
223 if (tm->tm_hour > hour || (tm->tm_hour == hour && tm->tm_min> min)) {
224 /* wake time is tomorrow */
232 wake_time_epoch = mktime(tm);
233 PARA_INFO_LOG("waketime: %s", asctime(tm));
234 while (wake_time_epoch > t1 + wf) {
235 delay = wake_time_epoch - t1 - wf;
236 PARA_INFO_LOG("sleeping %u seconds (%u:%02u)\n",
238 (delay % 3600) / 60);
242 cmd = make_message("csp %s\n", wake_stream);
246 PARA_INFO_LOG("%s", "fade complete, returning\n");
249 static void snooze(void)
251 if (get_vol() < args_info.snooze_out_vol_arg)
252 set_vol(args_info.snooze_out_vol_arg);
254 fade(args_info.snooze_out_vol_arg, args_info.snooze_out_fade_arg);
256 PARA_NOTICE_LOG("%d seconds snooze time...\n", args_info.snooze_time_arg);
257 sleep(args_info.snooze_time_arg);
259 fade(args_info.snooze_in_vol_arg, args_info.snooze_in_fade_arg);
262 static int configfile_exists(void)
264 static char *config_file;
266 if (!args_info.config_file_given) {
267 char *home = para_homedir();
268 const char *conf = ".paraslash/fade.conf";
270 config_file = make_message("%s/%s", home, conf);
272 args_info.config_file_arg = config_file;
274 return file_exists(args_info.config_file_arg);
278 int main(int argc, char *argv[])
282 if (cmdline_parser(argc, argv, &args_info))
284 ret = configfile_exists();
285 if (!ret && args_info.config_file_given) {
286 PARA_EMERG_LOG("can not read config file %s\n",
287 args_info.config_file_arg);
291 cmdline_parser_configfile(args_info.config_file_arg,
292 &args_info, 0, 0, 0);
293 if ((ret = open_mixer()) < 0) {
294 PARA_EMERG_LOG("can not open mixer device %s.",
295 args_info.mixer_device_arg);
301 if (!strcmp(args_info.mode_arg, "sleep")) {
305 if (!strcmp(args_info.mode_arg, "fade")) {
306 fade(args_info.fade_vol_arg, args_info.fade_time_arg);
309 if (!strcmp(args_info.mode_arg, "snooze")) {