2 * Copyright (C) 1998-2009 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 for linux. */
12 #include "fade.cmdline.h"
16 #include <sys/ioctl.h>
18 #include <stdlib.h> /* EXIT_SUCCESS */
23 #include <sys/soundcard.h>
29 struct fade_args_info conf
;
31 __printf_2_3
void para_log(__a_unused
int ll
, const char *fmt
, ...)
39 printf("%d:%02d:%02d ", tm
->tm_hour
, tm
->tm_min
, tm
->tm_sec
);
48 static int open_mixer(void)
50 return para_open(conf
.mixer_device_arg
, O_RDWR
, 42);
54 * Get channel volume via mixer_fd.
56 static int get_mixer_channel(int mixer_fd
)
60 if (ioctl(mixer_fd
, MIXER_READ(conf
.mixer_channel_arg
), &volume
) < 0)
61 return -ERRNO_TO_PARA_ERROR(errno
);
62 /* take the mean value of left and right volume */
63 return (volume
% 256 + (volume
>> 8)) / 2;
67 * Open mixer, get volume and close mixer.
69 static int open_and_get_mixer_channel(void)
74 mixer_fd
= open_mixer();
77 volume
= get_mixer_channel(mixer_fd
);
83 * Set channel volume via mixer_fd.
85 static int set_mixer_channel(int mixer_fd
, int volume
)
87 int tmp
= (volume
<< 8) + volume
;
89 if (ioctl(mixer_fd
, MIXER_WRITE(conf
.mixer_channel_arg
), &tmp
) < 0)
90 return -ERRNO_TO_PARA_ERROR(errno
);
95 * Open mixer, set volume and close mixer.
97 static int open_and_set_mixer_channel(int volume
)
99 int mixer_fd
, ret
= open_mixer();
104 ret
= set_mixer_channel(mixer_fd
, volume
);
109 static void fixup_mixer_channel_arg(void)
111 int val
= SOUND_MIXER_VOLUME
; /* STFU, gcc */
113 switch (conf
.mixer_channel_arg
) {
114 case mixer_channel_arg_volume
: val
= SOUND_MIXER_VOLUME
; break;
115 case mixer_channel_arg_bass
: val
= SOUND_MIXER_BASS
; break;
116 case mixer_channel_arg_treble
: val
= SOUND_MIXER_TREBLE
; break;
117 case mixer_channel_arg_synth
: val
= SOUND_MIXER_SYNTH
; break;
118 case mixer_channel_arg_pcm
: val
= SOUND_MIXER_PCM
; break;
119 case mixer_channel_arg_speaker
: val
= SOUND_MIXER_SPEAKER
; break;
120 case mixer_channel_arg_line
: val
= SOUND_MIXER_LINE
; break;
121 case mixer_channel_arg_mic
: val
= SOUND_MIXER_MIC
; break;
122 case mixer_channel_arg_cd
: val
= SOUND_MIXER_CD
; break;
123 case mixer_channel_arg_imix
: val
= SOUND_MIXER_IMIX
; break;
124 case mixer_channel_arg_altpcm
: val
= SOUND_MIXER_ALTPCM
; break;
125 case mixer_channel_arg_reclev
: val
= SOUND_MIXER_RECLEV
; break;
126 case mixer_channel_arg_igain
: val
= SOUND_MIXER_IGAIN
; break;
127 case mixer_channel_arg_ogain
: val
= SOUND_MIXER_OGAIN
; break;
129 conf
.mixer_channel_arg
= val
;
133 * Open mixer, get volume, fade to new_vol in secs seconds and
136 static int fade(int new_vol
, int fade_time
)
138 int vol
, mixer_fd
, diff
, incr
, ret
;
141 unsigned long long tmp
, tmp2
; /* Careful with that axe, Eugene! */
146 PARA_NOTICE_LOG("fading to %d in %d seconds\n", new_vol
, secs
);
151 ret
= get_mixer_channel(mixer_fd
);
155 diff
= new_vol
- vol
;
160 incr
= diff
> 0? 1: -1;
161 diff
= diff
> 0? diff
: -diff
;
162 tmp
= secs
* 1000 / diff
;
164 while ((new_vol
- vol
) * incr
> 0) {
165 ts
.tv_nsec
= tmp2
* 1000000; /* really nec ?*/
166 ts
.tv_sec
= tmp
/ 1000; /* really nec ?*/
167 //printf("ts.tv_sec: %i\n", ts.tv_nsec);
169 ret
= set_mixer_channel(mixer_fd
, vol
);
172 //printf("vol = %i\n", vol);
173 nanosleep(&ts
, NULL
);
180 static void client_cmd(const char *cmd
)
182 int ret
, fds
[3] = {0, 0, 0};
184 char *cmdline
= make_message(BINDIR
"/para_client %s", cmd
);
186 PARA_INFO_LOG("%s\n", cmdline
);
187 ret
= para_exec_cmdline_pid(&pid
, cmdline
, fds
);
190 PARA_EMERG_LOG("%s\n", para_strerror(-ret
));
195 while (ret
!= -1 && errno
!= ECHILD
);
198 static void change_afs_mode_and_play(char *afs_mode
)
205 cmd
= make_message("select %s\n", afs_mode
);
214 static int sweet_dreams(void)
216 time_t t1
, wake_time_epoch
;
219 int ret
, min
= conf
.wake_min_arg
;
220 char *fa_mode
= conf
.fa_mode_arg
;
221 char *wake_mode
= conf
.wake_mode_arg
;
222 char *sleep_mode
= conf
.sleep_mode_arg
;
223 int wf
= conf
.wake_fade_arg
;
224 int sf
= conf
.fa_fade_arg
;
225 int wv
= conf
.wake_vol_arg
;
226 int sv
= conf
.fa_vol_arg
;
227 int iv
= conf
.sleep_ivol_arg
;
229 /* calculate wake time */
231 if (conf
.wake_hour_given
) {
232 int hour
= conf
.wake_hour_arg
;
234 if (tm
->tm_hour
> hour
|| (tm
->tm_hour
== hour
&& tm
->tm_min
> min
)) {
235 t1
+= 86400; /* wake time is tomorrow */
242 t1
+= 9 * 60 * 60; /* nine hours from now */
243 PARA_INFO_LOG("default wake time: %lu\n", (long unsigned)t1
);
246 wake_time_epoch
= mktime(tm
);
247 PARA_INFO_LOG("waketime: %s", asctime(tm
));
251 PARA_INFO_LOG("initial volume: %d\n", iv
);
252 ret
= open_and_set_mixer_channel(iv
);
255 change_afs_mode_and_play(fa_mode
);
260 ret
= open_and_set_mixer_channel(sf
);
264 if (conf
.sleep_mode_given
)
265 change_afs_mode_and_play(sleep_mode
);
272 if (wake_time_epoch
<= t1
+ wf
)
274 delay
= wake_time_epoch
- t1
- wf
;
275 PARA_INFO_LOG("sleeping %u seconds (%u:%02u)\n",
277 (delay
% 3600) / 60);
280 change_afs_mode_and_play(wake_mode
);
282 PARA_INFO_LOG("fade complete, returning\n");
286 static int snooze(void)
291 if (conf
.snooze_time_arg
<= 0)
293 sleep_time
= conf
.snooze_time_arg
;
294 if (open_and_get_mixer_channel() < conf
.snooze_out_vol_arg
)
295 ret
= open_and_set_mixer_channel(conf
.snooze_out_vol_arg
);
297 ret
= fade(conf
.snooze_out_vol_arg
, conf
.snooze_out_fade_arg
);
301 PARA_NOTICE_LOG("%d seconds snooze time...\n", conf
.snooze_time_arg
);
304 return fade(conf
.snooze_in_vol_arg
, conf
.snooze_in_fade_arg
);
307 static int configfile_exists(void)
309 static char *config_file
;
311 if (!conf
.config_file_given
) {
312 char *home
= para_homedir();
314 config_file
= make_message("%s/.paraslash/fade.conf", home
);
316 conf
.config_file_arg
= config_file
;
318 return file_exists(conf
.config_file_arg
);
321 int main(int argc
, char *argv
[])
325 if (fade_cmdline_parser(argc
, argv
, &conf
))
327 HANDLE_VERSION_FLAG("fade", conf
);
328 ret
= configfile_exists();
329 if (!ret
&& conf
.config_file_given
) {
330 PARA_EMERG_LOG("can not read config file %s\n",
331 conf
.config_file_arg
);
335 struct fade_cmdline_parser_params params
= {
341 fade_cmdline_parser_config_file(conf
.config_file_arg
,
344 fixup_mixer_channel_arg();
345 if (!strcmp(conf
.mode_arg
, "sleep")) {
346 ret
= sweet_dreams();
349 if (!strcmp(conf
.mode_arg
, "fade")) {
350 ret
= fade(conf
.fade_vol_arg
, conf
.fade_time_arg
);
353 if (!strcmp(conf
.mode_arg
, "snooze")) {
357 ret
= -E_FADE_SYNTAX
;
360 PARA_EMERG_LOG("%s\n", para_strerror(-ret
));
361 return ret
< 0? EXIT_FAILURE
: EXIT_SUCCESS
;