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 */
9 #include "fade.cmdline.h"
16 #include <stdlib.h> /* EXIT_SUCCESS */
21 #include <linux/soundcard.h>
25 struct fade_args_info conf;
27 void para_log(__a_unused int ll, const char *fmt,...)
35 printf("%d:%02d:%02d ", tm->tm_hour, tm->tm_min, tm->tm_sec);
44 static int open_mixer(void)
46 return open(conf.mixer_device_arg, O_RDWR, 0);
50 * get volume via mixer_fd
52 static int do_get_vol(int mixer_fd)
56 if (ioctl(mixer_fd, MIXER_READ(SOUND_MIXER_VOLUME), &volume) < 0)
58 /* take the mean value of left and right volume */
59 return (volume % 256 + (volume >> 8)) / 2;
63 * open mixer, get volume and close mixer
65 static int get_vol(void)
70 mixer_fd = open_mixer();
73 volume = do_get_vol(mixer_fd);
79 * set volume via mixer_fd
81 static int do_set_vol(int mixer_fd, int volume)
83 int tmp = (volume << 8) + volume;
85 if (ioctl(mixer_fd, MIXER_WRITE(SOUND_MIXER_VOLUME), &tmp) < 0)
91 * open mixer, set volume and close mixer
93 static int set_vol(int volume)
95 int mixer_fd, ret = open_mixer();
100 ret = do_set_vol(mixer_fd, volume);
106 * Open mixer, get volume, fade to new_vol in secs seconds and
109 static void fade(int new_vol, int fade_time)
111 int vol, mixer_fd, diff, incr;
114 unsigned long long tmp, tmp2; /* Careful with that axe, Eugene! */
119 PARA_NOTICE_LOG("fading to %d in %d seconds\n", new_vol, secs);
120 mixer_fd = open_mixer();
123 vol = do_get_vol(mixer_fd);
126 diff = new_vol - vol;
131 incr = diff > 0? 1: -1;
132 diff = diff > 0? diff: -diff;
133 tmp = secs * 1000 / diff;
135 while ((new_vol - vol) * incr > 0) {
136 ts.tv_nsec = tmp2 * 1000000; /* really nec ?*/
137 ts.tv_sec = tmp / 1000; /* really nec ?*/
138 //printf("ts.tv_sec: %i\n", ts.tv_nsec);
140 if (do_set_vol(mixer_fd, vol) < 0)
142 //printf("vol = %i\n", vol);
143 nanosleep(&ts, NULL);
149 static int client_cmd(const char *cmd,...)
151 int ret, fds[3] = {0, 0, 0};
153 char *cmdline = make_message(BINDIR "/para_client %s", cmd);
155 PARA_INFO_LOG("%s\n", cmdline);
156 ret = para_exec_cmdline_pid(&pid, cmdline, fds);
164 static void sweet_dreams(void)
166 time_t t1, wake_time_epoch;
169 int min = conf.wake_min_arg;
170 char *fa_stream = conf.fa_stream_arg;
171 char *wake_stream = conf.wake_stream_arg;
172 //char *current_stream = stat_items[STREAM].content;
173 int wf = conf.wake_fade_arg;
174 int sf = conf.fa_fade_arg;
175 int wv = conf.wake_vol_arg;
176 int sv = conf.fa_vol_arg;
177 int iv = conf.sleep_ivol_arg;
178 char *cmd, *sleep_stream = conf.sleep_stream_given?
179 conf.sleep_stream_arg : NULL;
181 /* calculate wake time */
183 if (conf.wake_hour_given) {
184 int hour = conf.wake_hour_arg;
186 if (tm->tm_hour > hour || (tm->tm_hour == hour && tm->tm_min> min)) {
187 t1 += 86400; /* wake time is tomorrow */
195 PARA_INFO_LOG("default wake time: %lu\n", t1);
198 wake_time_epoch = mktime(tm);
199 PARA_INFO_LOG("waketime: %s", asctime(tm));
201 PARA_INFO_LOG("initial volume: %d\n", iv);
203 cmd = make_message("csp %s\n", fa_stream);
209 cmd = make_message("csp %s\n", sleep_stream);
218 if (wake_time_epoch <= t1 + wf)
220 delay = wake_time_epoch - t1 - wf;
221 PARA_INFO_LOG("sleeping %u seconds (%u:%02u)\n",
223 (delay % 3600) / 60);
226 cmd = make_message("csp %s\n", wake_stream);
230 PARA_INFO_LOG("%s", "fade complete, returning\n");
233 static void snooze(void)
237 if (conf.snooze_time_arg <= 0)
239 sleep_time = conf.snooze_time_arg;
240 if (get_vol() < conf.snooze_out_vol_arg)
241 set_vol(conf.snooze_out_vol_arg);
243 fade(conf.snooze_out_vol_arg, conf.snooze_out_fade_arg);
245 PARA_NOTICE_LOG("%d seconds snooze time...\n", conf.snooze_time_arg);
248 fade(conf.snooze_in_vol_arg, conf.snooze_in_fade_arg);
251 static int configfile_exists(void)
253 static char *config_file;
255 if (!conf.config_file_given) {
256 char *home = para_homedir();
258 config_file = make_message("%s/.paraslash/fade.conf", home);
260 conf.config_file_arg = config_file;
262 return file_exists(conf.config_file_arg);
266 int main(int argc, char *argv[])
270 if (fade_cmdline_parser(argc, argv, &conf))
272 HANDLE_VERSION_FLAG("fade", conf);
273 ret = configfile_exists();
274 if (!ret && conf.config_file_given) {
275 PARA_EMERG_LOG("can not read config file %s\n",
276 conf.config_file_arg);
280 fade_cmdline_parser_configfile(conf.config_file_arg,
284 PARA_EMERG_LOG("can not open mixer device %s.",
285 conf.mixer_device_arg);
290 // setlinebuf(stdout);
291 if (!strcmp(conf.mode_arg, "sleep")) {
295 if (!strcmp(conf.mode_arg, "fade")) {
296 fade(conf.fade_vol_arg, conf.fade_time_arg);
299 if (!strcmp(conf.mode_arg, "snooze")) {
305 return ret < 0? EXIT_FAILURE : EXIT_SUCCESS;