#include <regex.h>
#include <lopsub.h>
+#include <math.h>
#include "mixer.lsg.h"
#include "para.h"
/** Array of error strings. */
DEFINE_PARA_ERRLIST;
-enum mixer_id {MIXER_ENUM};
-static char *mixer_name[] = {MIXER_NAMES};
-DECLARE_MIXER_INITS;
-static struct mixer supported_mixer[] = {MIXER_ARRAY};
+/* At least one of the two is defined if this file gets compiled. */
+static const struct mixer *mixers[] = {
+#ifdef HAVE_ALSA
+ &alsa_mixer,
+#endif
+#ifdef HAVE_OSS
+ &oss_mixer,
+#endif
+};
+
+#define NUM_SUPPORTED_MIXERS (ARRAY_SIZE(mixers))
#define FOR_EACH_MIXER(i) for ((i) = 0; (i) < NUM_SUPPORTED_MIXERS; (i)++)
static struct lls_parse_result *lpr, *sub_lpr;
#define OPT_STRING_VAL(_cmd, _opt) (lls_string_val(0, OPT_RESULT(_cmd, _opt)))
#define OPT_UINT32_VAL(_cmd, _opt) (lls_uint32_val(0, OPT_RESULT(_cmd, _opt)))
-typedef int (*mixer_subcommand_handler_t)(struct mixer *, struct mixer_handle *);
+typedef int (*mixer_subcommand_handler_t)(const struct mixer *, struct mixer_handle *);
#define EXPORT_CMD(_cmd) const mixer_subcommand_handler_t \
lsg_mixer_com_ ## _cmd ## _user_data = &com_ ## _cmd;
}
__printf_2_3 void (*para_log)(int, const char*, ...) = date_log;
-static int set_channel(struct mixer *m, struct mixer_handle *h, const char *channel)
+static int set_channel(const struct mixer *m, struct mixer_handle *h,
+ const char *channel)
{
PARA_NOTICE_LOG("using %s mixer channel\n", channel?
return m->set_channel(h, channel);
}
+static void millisleep(int ms)
+{
+ struct timespec ts;
+
+ PARA_INFO_LOG("sleeping %dms\n", ms);
+ if (ms < 0)
+ return;
+ ts.tv_sec = ms / 1000,
+ ts.tv_nsec = (ms % 1000) * 1000 * 1000;
+ nanosleep(&ts, NULL);
+}
+
+/*
+ * This implements the inverse function of t -> t^alpha, scaled to the time
+ * interval [0,T] and the range given by old_vol and new_vol. It returns the
+ * amount of milliseconds until the given volume is reached.
+ */
+static unsigned volume_time(double vol, double old_vol, double new_vol,
+ double T, double alpha)
+{
+ double c, d, x;
+
+ if (old_vol < new_vol) {
+ c = old_vol;
+ d = new_vol;
+ } else {
+ c = new_vol;
+ d = old_vol;
+ }
+
+ x = T * exp(log(((vol - c) / (d - c))) / alpha);
+ assert(x <= T);
+ if (old_vol < new_vol)
+ return x;
+ else
+ return T - x;
+}
+
/* Fade to new volume in fade_time seconds. */
-static int fade(struct mixer *m, struct mixer_handle *h, uint32_t new_vol,
+static int fade(const struct mixer *m, struct mixer_handle *h, uint32_t new_vol,
uint32_t fade_time)
{
- int vol, diff, incr, ret;
- unsigned secs;
- struct timespec ts;
- unsigned long long tmp, tmp2; /* Careful with that axe, Eugene! */
+ int i, T, old_vol, ret, slept, incr;
+ double ms, alpha;
+ uint32_t fe = OPT_UINT32_VAL(PARA_MIXER, FADE_EXPONENT);
- if (fade_time <= 0)
- return m->set(h, new_vol);
- secs = fade_time;
+ if (fade_time <= 0 || fe >= 100) {
+ ret = m->set(h, new_vol);
+ if (ret < 0)
+ return ret;
+ goto sleep;
+ }
+ alpha = (100 - fe) / 100.0;
ret = m->get(h);
if (ret < 0)
- goto out;
- vol = ret;
+ return ret;
+ old_vol = ret;
+ if (old_vol == new_vol)
+ goto sleep;
PARA_NOTICE_LOG("fading %s from %d to %u in %u seconds\n",
- OPT_STRING_VAL(PARA_MIXER, MIXER_CHANNEL), vol, new_vol, secs);
- diff = new_vol - vol;
- if (!diff) {
- sleep(secs);
- goto out;
- }
- incr = diff > 0? 1: -1;
- diff = diff > 0? diff: -diff;
- tmp = secs * 1000 / diff;
- tmp2 = tmp % 1000;
- while ((new_vol - vol) * incr > 0) {
- ts.tv_nsec = tmp2 * 1000000; /* really nec ?*/
- ts.tv_sec = tmp / 1000; /* really nec ?*/
- //printf("ts.tv_sec: %i\n", ts.tv_nsec);
- vol += incr;
- ret = m->set(h, vol);
+ OPT_STRING_VAL(PARA_MIXER, MIXER_CHANNEL), old_vol,
+ new_vol, fade_time);
+ incr = old_vol < new_vol? 1 : -1;
+ T = fade_time * 1000;
+ i = old_vol;
+ slept = 0;
+ do {
+ ms = volume_time(i + incr, old_vol, new_vol, T, alpha);
+ millisleep(ms - slept);
+ slept = ms;
+ i += incr;
+ ret = m->set(h, i);
if (ret < 0)
- goto out;
- //printf("vol = %i\n", vol);
- nanosleep(&ts, NULL);
- }
-out:
+ return ret;
+ } while (i != new_vol);
+ return 1;
+sleep:
+ sleep(fade_time);
return ret;
}
-static int com_fade(struct mixer *m, struct mixer_handle *h)
+
+static int com_fade(const struct mixer *m, struct mixer_handle *h)
{
uint32_t new_vol = OPT_UINT32_VAL(FADE, FADE_VOL);
uint32_t fade_time = OPT_UINT32_VAL(FADE, FADE_TIME);
free(cmd);
}
-static int set_initial_volume(struct mixer *m, struct mixer_handle *h)
+static int set_initial_volume(const struct mixer *m, struct mixer_handle *h)
{
int i, ret;
return 1;
}
-static int com_sleep(struct mixer *m, struct mixer_handle *h)
+static int com_sleep(const struct mixer *m, struct mixer_handle *h)
{
time_t t1, wake_time_epoch;
unsigned int delay;
struct tm *tm;
- int ret, min = OPT_UINT32_VAL(SLEEP, WAKE_MIN);
+ int ret;
+ const char *wake_time = OPT_STRING_VAL(SLEEP, WAKE_TIME);
const char *fo_mood = OPT_STRING_VAL(SLEEP, FO_MOOD);
const char *fi_mood = OPT_STRING_VAL(SLEEP, FI_MOOD);
const char *sleep_mood = OPT_STRING_VAL(SLEEP, SLEEP_MOOD);
int fot = OPT_UINT32_VAL(SLEEP, FO_TIME);
int fiv = OPT_UINT32_VAL(SLEEP, FI_VOL);
int fov = OPT_UINT32_VAL(SLEEP, FO_VOL);
+ int32_t hour, min = 0;
+ char *tmp;
+ char *wt = para_strdup(wake_time + (wake_time[0] == '+'));
/* calculate wake time */
time(&t1);
- if (OPT_GIVEN(SLEEP, WAKE_HOUR)) {
- int hour = OPT_UINT32_VAL(SLEEP, WAKE_HOUR);
+ tmp = strchr(wt, ':');
+ if (tmp) {
+ *tmp = '\0';
+ tmp++;
+ ret = para_atoi32(tmp, &min);
+ if (ret < 0) {
+ free(wt);
+ return ret;
+ }
+ }
+ ret = para_atoi32(wt, &hour);
+ free(wt);
+ if (ret < 0)
+ return ret;
+ if (wake_time[0] == '+') { /* relative */
+ t1 += hour * 60 * 60 + min * 60;
+ tm = localtime(&t1);
+ } else {
tm = localtime(&t1);
if (tm->tm_hour > hour || (tm->tm_hour == hour && tm->tm_min> min)) {
t1 += 86400; /* wake time is tomorrow */
tm->tm_hour = hour;
tm->tm_min = min;
tm->tm_sec = 0;
- } else {
- t1 += 9 * 60 * 60; /* nine hours from now */
- PARA_INFO_LOG("default wake time: %lu\n", (long unsigned)t1);
- tm = localtime(&t1);
}
wake_time_epoch = mktime(tm);
PARA_INFO_LOG("waketime: %d:%02d\n", tm->tm_hour, tm->tm_min);
}
EXPORT_CMD(sleep);
-static int com_snooze(struct mixer *m, struct mixer_handle *h)
+static int com_snooze(const struct mixer *m, struct mixer_handle *h)
{
int ret, val;
}
EXPORT_CMD(snooze);
-static void init_mixers(void)
-{
- int i;
-
- FOR_EACH_MIXER(i) {
- struct mixer *m = &supported_mixer[i];
- PARA_DEBUG_LOG("initializing mixer API #%d (%s)\n",
- i, mixer_name[i]);
- m->init(m);
- }
-}
-
-static int com_set(struct mixer *m, struct mixer_handle *h)
+static int com_set(const struct mixer *m, struct mixer_handle *h)
{
return m->set(h, OPT_UINT32_VAL(SET, VAL));
}
EXPORT_CMD(set);
-static struct mixer *get_mixer_or_die(void)
+static const struct mixer *get_mixer_or_die(void)
{
int i;
if (!OPT_GIVEN(PARA_MIXER, MIXER_API))
- i = DEFAULT_MIXER;
+ i = 0; /* default: use first mixer */
else
FOR_EACH_MIXER(i)
- if (!strcmp(mixer_name[i],
+ if (!strcmp(mixers[i]->name,
OPT_STRING_VAL(PARA_MIXER, MIXER_API)))
break;
if (i < NUM_SUPPORTED_MIXERS) {
- PARA_NOTICE_LOG("using %s mixer API\n", mixer_name[i]);
- return supported_mixer + i;
+ PARA_NOTICE_LOG("using %s mixer API\n", mixers[i]->name);
+ return mixers[i];
}
printf("available mixer APIs: ");
- FOR_EACH_MIXER(i) {
- int d = (i == DEFAULT_MIXER);
- printf("%s%s%s ", d? "[" : "", mixer_name[i], d? "]" : "");
- }
+ FOR_EACH_MIXER(i)
+ printf("%s%s%s ", i == 0? "[" : "", mixers[i]->name,
+ i == 0? "]" : "");
printf("\n");
exit(EXIT_FAILURE);
}
}
-static int com_help(__a_unused struct mixer *m, __a_unused struct mixer_handle *h)
+static int com_help(__a_unused const struct mixer *m,
+ __a_unused struct mixer_handle *h)
{
const struct lls_command *cmd;
const struct lls_opt_result *r_l = OPT_RESULT(HELP, LONG);
int ret;
char *errctx;
const char *subcmd;
- struct mixer *m;
+ const struct mixer *m;
struct mixer_handle *h;
unsigned n;
ret = parse_and_merge_config_file(cmd);
if (ret < 0)
goto free_lpr;
- init_mixers();
m = get_mixer_or_die();
ret = m->open(OPT_STRING_VAL(PARA_MIXER, MIXER_DEVICE), &h);
if (ret < 0)