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);
167 static void sweet_dreams(void)
169 time_t t1, wake_time_epoch;
172 int min = conf.wake_min_arg;
173 char *fa_stream = conf.fa_stream_arg;
174 char *wake_stream = conf.wake_stream_arg;
175 //char *current_stream = stat_items[STREAM].content;
176 int wf = conf.wake_fade_arg;
177 int sf = conf.fa_fade_arg;
178 int wv = conf.wake_vol_arg;
179 int sv = conf.fa_vol_arg;
180 int iv = conf.sleep_ivol_arg;
181 char *cmd, *sleep_stream = conf.sleep_stream_given?
182 conf.sleep_stream_arg : NULL;
184 /* calculate wake time */
186 if (conf.wake_hour_given) {
187 int hour = conf.wake_hour_arg;
189 if (tm->tm_hour > hour || (tm->tm_hour == hour && tm->tm_min> min)) {
190 t1 += 86400; /* wake time is tomorrow */
198 PARA_INFO_LOG("default wake time: %lu\n", t1);
201 wake_time_epoch = mktime(tm);
202 PARA_INFO_LOG("waketime: %s", asctime(tm));
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);
221 if (wake_time_epoch <= t1 + wf)
223 delay = wake_time_epoch - t1 - wf;
224 PARA_INFO_LOG("sleeping %u seconds (%u:%02u)\n",
226 (delay % 3600) / 60);
229 cmd = make_message("csp %s\n", wake_stream);
233 PARA_INFO_LOG("%s", "fade complete, returning\n");
236 static void snooze(void)
240 if (conf.snooze_time_arg <= 0)
242 sleep_time = conf.snooze_time_arg;
243 if (get_vol() < conf.snooze_out_vol_arg)
244 set_vol(conf.snooze_out_vol_arg);
246 fade(conf.snooze_out_vol_arg, conf.snooze_out_fade_arg);
248 PARA_NOTICE_LOG("%d seconds snooze time...\n", conf.snooze_time_arg);
251 fade(conf.snooze_in_vol_arg, conf.snooze_in_fade_arg);
254 static int configfile_exists(void)
256 static char *config_file;
258 if (!conf.config_file_given) {
259 char *home = para_homedir();
261 config_file = make_message("%s/.paraslash/fade.conf", home);
263 conf.config_file_arg = config_file;
265 return file_exists(conf.config_file_arg);
269 int main(int argc, char *argv[])
273 if (fade_cmdline_parser(argc, argv, &conf))
275 HANDLE_VERSION_FLAG("fade", conf);
276 ret = configfile_exists();
277 if (!ret && conf.config_file_given) {
278 PARA_EMERG_LOG("can not read config file %s\n",
279 conf.config_file_arg);
283 struct fade_cmdline_parser_params params = {
289 fade_cmdline_parser_config_file(conf.config_file_arg,
294 PARA_EMERG_LOG("can not open mixer device %s.",
295 conf.mixer_device_arg);
300 // setlinebuf(stdout);
301 if (!strcmp(conf.mode_arg, "sleep")) {
305 if (!strcmp(conf.mode_arg, "fade")) {
306 fade(conf.fade_vol_arg, conf.fade_time_arg);
309 if (!strcmp(conf.mode_arg, "snooze")) {
315 return ret < 0? EXIT_FAILURE : EXIT_SUCCESS;