2 * Copyright (C) 1998-2008 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"
18 #include <stdlib.h> /* EXIT_SUCCESS */
23 #include <linux/soundcard.h>
27 struct fade_args_info conf
;
29 void para_log(__a_unused
int ll
, const char *fmt
,...)
37 printf("%d:%02d:%02d ", tm
->tm_hour
, tm
->tm_min
, tm
->tm_sec
);
46 static int open_mixer(void)
48 return open(conf
.mixer_device_arg
, O_RDWR
, 0);
52 * get volume via mixer_fd
54 static int do_get_vol(int mixer_fd
)
58 if (ioctl(mixer_fd
, MIXER_READ(SOUND_MIXER_VOLUME
), &volume
) < 0)
60 /* take the mean value of left and right volume */
61 return (volume
% 256 + (volume
>> 8)) / 2;
65 * open mixer, get volume and close mixer
67 static int get_vol(void)
72 mixer_fd
= open_mixer();
75 volume
= do_get_vol(mixer_fd
);
81 * set volume via mixer_fd
83 static int do_set_vol(int mixer_fd
, int volume
)
85 int tmp
= (volume
<< 8) + volume
;
87 if (ioctl(mixer_fd
, MIXER_WRITE(SOUND_MIXER_VOLUME
), &tmp
) < 0)
93 * open mixer, set volume and close mixer
95 static int set_vol(int volume
)
97 int mixer_fd
, ret
= open_mixer();
102 ret
= do_set_vol(mixer_fd
, volume
);
108 * Open mixer, get volume, fade to new_vol in secs seconds and
111 static void fade(int new_vol
, int fade_time
)
113 int vol
, mixer_fd
, diff
, incr
;
116 unsigned long long tmp
, tmp2
; /* Careful with that axe, Eugene! */
121 PARA_NOTICE_LOG("fading to %d in %d seconds\n", new_vol
, secs
);
122 mixer_fd
= open_mixer();
125 vol
= do_get_vol(mixer_fd
);
128 diff
= new_vol
- vol
;
133 incr
= diff
> 0? 1: -1;
134 diff
= diff
> 0? diff
: -diff
;
135 tmp
= secs
* 1000 / diff
;
137 while ((new_vol
- vol
) * incr
> 0) {
138 ts
.tv_nsec
= tmp2
* 1000000; /* really nec ?*/
139 ts
.tv_sec
= tmp
/ 1000; /* really nec ?*/
140 //printf("ts.tv_sec: %i\n", ts.tv_nsec);
142 if (do_set_vol(mixer_fd
, vol
) < 0)
144 //printf("vol = %i\n", vol);
145 nanosleep(&ts
, NULL
);
151 static void client_cmd(const char *cmd
)
153 int ret
, fds
[3] = {0, 0, 0};
155 char *cmdline
= make_message(BINDIR
"/para_client %s", cmd
);
157 PARA_INFO_LOG("%s\n", cmdline
);
158 ret
= para_exec_cmdline_pid(&pid
, cmdline
, fds
);
164 while (ret
!= -1 && errno
!= ECHILD
);
167 static void change_afs_mode_and_play(char *afs_mode
)
174 cmd
= make_message("select %s\n", afs_mode
);
183 static void sweet_dreams(void)
185 time_t t1
, wake_time_epoch
;
188 int min
= conf
.wake_min_arg
;
189 char *fa_mode
= conf
.fa_mode_arg
;
190 char *wake_mode
= conf
.wake_mode_arg
;
191 char *sleep_mode
= conf
.sleep_mode_arg
;
192 int wf
= conf
.wake_fade_arg
;
193 int sf
= conf
.fa_fade_arg
;
194 int wv
= conf
.wake_vol_arg
;
195 int sv
= conf
.fa_vol_arg
;
196 int iv
= conf
.sleep_ivol_arg
;
198 /* calculate wake time */
200 if (conf
.wake_hour_given
) {
201 int hour
= conf
.wake_hour_arg
;
203 if (tm
->tm_hour
> hour
|| (tm
->tm_hour
== hour
&& tm
->tm_min
> min
)) {
204 t1
+= 86400; /* wake time is tomorrow */
211 t1
+= 9 * 60 * 60; /* nine hours from now */
212 PARA_INFO_LOG("default wake time: %lu\n", t1
);
215 wake_time_epoch
= mktime(tm
);
216 PARA_INFO_LOG("waketime: %s", asctime(tm
));
220 PARA_INFO_LOG("initial volume: %d\n", iv
);
222 change_afs_mode_and_play(fa_mode
);
226 change_afs_mode_and_play(sleep_mode
);
231 if (wake_time_epoch
<= t1
+ wf
)
233 delay
= wake_time_epoch
- t1
- wf
;
234 PARA_INFO_LOG("sleeping %u seconds (%u:%02u)\n",
236 (delay
% 3600) / 60);
239 change_afs_mode_and_play(wake_mode
);
241 PARA_INFO_LOG("fade complete, returning\n");
244 static void snooze(void)
248 if (conf
.snooze_time_arg
<= 0)
250 sleep_time
= conf
.snooze_time_arg
;
251 if (get_vol() < conf
.snooze_out_vol_arg
)
252 set_vol(conf
.snooze_out_vol_arg
);
254 fade(conf
.snooze_out_vol_arg
, conf
.snooze_out_fade_arg
);
256 PARA_NOTICE_LOG("%d seconds snooze time...\n", conf
.snooze_time_arg
);
259 fade(conf
.snooze_in_vol_arg
, conf
.snooze_in_fade_arg
);
262 static int configfile_exists(void)
264 static char *config_file
;
266 if (!conf
.config_file_given
) {
267 char *home
= para_homedir();
269 config_file
= make_message("%s/.paraslash/fade.conf", home
);
271 conf
.config_file_arg
= config_file
;
273 return file_exists(conf
.config_file_arg
);
277 int main(int argc
, char *argv
[])
281 if (fade_cmdline_parser(argc
, argv
, &conf
))
283 HANDLE_VERSION_FLAG("fade", conf
);
284 ret
= configfile_exists();
285 if (!ret
&& conf
.config_file_given
) {
286 PARA_EMERG_LOG("can not read config file %s\n",
287 conf
.config_file_arg
);
291 struct fade_cmdline_parser_params params
= {
297 fade_cmdline_parser_config_file(conf
.config_file_arg
,
302 PARA_EMERG_LOG("can not open mixer device %s.",
303 conf
.mixer_device_arg
);
308 // setlinebuf(stdout);
309 if (!strcmp(conf
.mode_arg
, "sleep")) {
313 if (!strcmp(conf
.mode_arg
, "fade")) {
314 fade(conf
.fade_vol_arg
, conf
.fade_time_arg
);
317 if (!strcmp(conf
.mode_arg
, "snooze")) {
323 return ret
< 0? EXIT_FAILURE
: EXIT_SUCCESS
;