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
;