4 #include <ucw/clists.h>
5 #include <ucw/mainloop.h>
6 #include <ucw/stkstring.h>
12 #include <pulse/pulseaudio.h>
16 /*** Interface to PulseAudio ***/
18 static pa_context *pulse_ctx;
19 static struct main_timer pulse_connect_timer;
21 static void pulse_dump(void);
32 static enum pulse_state pulse_state;
33 #define PULSE_STATE(s) do { pulse_state = s; DBG("Pulse: " #s); } while (0)
35 // Tracking of currently running asynchronous operations
42 static clist pulse_op_list;
44 static struct pulse_op *pulse_op_new(void)
46 struct pulse_op *op = xmalloc_zero(sizeof(*op));
47 clist_add_tail(&pulse_op_list, &op->n);
51 static void pulse_op_done(struct pulse_op *op)
54 pa_operation_unref(op->o);
59 static void pulse_op_cancel_all(void)
62 while (op = (struct pulse_op *) clist_head(&pulse_op_list))
64 DBG("Pulse: Cancelling pending operation");
65 pa_operation_cancel(op->o);
70 #define PULSE_ASYNC_RUN(name, ...) do { struct pulse_op *_op = pulse_op_new(); _op->o = name(__VA_ARGS__, _op); } while (0)
71 #define PULSE_ASYNC_INIT_RUN(name, ...) do { struct pulse_op *_op = pulse_op_new(); _op->is_init = 1; _op->o = name(__VA_ARGS__, _op); } while (0)
73 static void pulse_success_cb(pa_context *ctx UNUSED, int success, void *userdata)
76 msg(L_ERROR, "Pulse: Failure reported");
77 pulse_op_done(userdata);
80 static void pulse_dump_proplist(pa_proplist *pl UNUSED)
83 void *iterator = NULL;
86 while (key = pa_proplist_iterate(pl, &iterator))
88 const char *val = pa_proplist_gets(pl, key);
89 DBG(" %s = %s", key, val);
94 struct pulse_sink_input {
104 #define HASH_NODE struct pulse_sink_input
105 #define HASH_PREFIX(x) pulse_sink_input_##x
106 #define HASH_KEY_ATOMIC idx
107 #define HASH_WANT_CLEANUP
108 #define HASH_WANT_LOOKUP
109 #define HASH_WANT_REMOVE
110 #define HASH_ZERO_FILL
111 #include <ucw/hashtable.h>
113 #define SET_STRING(_field, _val) do { if (!_field || strcmp(_field, _val)) { xfree(_field); _field = xstrdup(_val); } } while (0)
115 static void pulse_sink_input_cb(pa_context *ctx UNUSED, const pa_sink_input_info *i, int eol, void *userdata)
117 struct pulse_op *op = userdata;
123 PULSE_STATE(PS_ONLINE);
130 DBG("Pulse: SINK INPUT #%u: %s client=%d sink=%d chans=%d has_vol=%d vol_rw=%d volume=%u mute=%d",
131 i->index, i->name, i->client, i->sink, i->channel_map.channels, i->has_volume, i->volume_writable, i->volume.values[0], i->mute);
132 pulse_dump_proplist(i->proplist);
134 struct pulse_sink_input *s = pulse_sink_input_lookup(i->index);
135 SET_STRING(s->name, i->name);
136 s->client_idx = i->client;
137 s->sink_idx = i->sink;
138 s->channels = i->channel_map.channels;
139 s->volume = pa_cvolume_avg(&i->volume);
144 static void pulse_sink_input_gone(int idx)
146 DBG("Pulse: REMOVE SINK INPUT #%d", idx);
147 struct pulse_sink_input *s = pulse_sink_input_lookup(idx);
148 pulse_sink_input_remove(s);
161 #define HASH_NODE struct pulse_sink
162 #define HASH_PREFIX(x) pulse_sink_##x
163 #define HASH_KEY_ATOMIC idx
164 #define HASH_WANT_CLEANUP
165 #define HASH_WANT_LOOKUP
166 #define HASH_WANT_REMOVE
167 #define HASH_ZERO_FILL
168 #include <ucw/hashtable.h>
170 static void pulse_sink_cb(pa_context *ctx, const pa_sink_info *i, int eol, void *userdata)
172 struct pulse_op *op = userdata;
178 PULSE_STATE(PS_GET_SINK_INPUTS);
179 PULSE_ASYNC_INIT_RUN(pa_context_get_sink_input_info_list, ctx, pulse_sink_input_cb);
185 DBG("Pulse: SINK #%u: %s (%s) flags=%08x channels=%u volume=%u mute=%d base_vol=%u state=%u",
186 i->index, i->name, i->description, i->flags, i->channel_map.channels, i->volume.values[0], i->mute, i->base_volume, i->state);
187 pulse_dump_proplist(i->proplist);
189 struct pulse_sink *s = pulse_sink_lookup(i->index);
190 SET_STRING(s->name, i->name);
191 s->channels = i->channel_map.channels;
192 s->volume = pa_cvolume_avg(&i->volume);
193 s->base_volume = i->base_volume;
198 static void pulse_sink_gone(int idx)
200 DBG("Pulse: REMOVE SINK #%d", idx);
201 struct pulse_sink *s = pulse_sink_lookup(idx);
202 pulse_sink_remove(s);
206 static struct pulse_sink *pulse_sink_by_name(const char *name)
208 HASH_FOR_ALL(pulse_sink, s)
210 if (!strcmp(s->name, name))
217 struct pulse_client {
223 #define HASH_NODE struct pulse_client
224 #define HASH_PREFIX(x) pulse_client_##x
225 #define HASH_KEY_ATOMIC idx
226 #define HASH_WANT_CLEANUP
227 #define HASH_WANT_LOOKUP
228 #define HASH_WANT_REMOVE
229 #define HASH_ZERO_FILL
230 #include <ucw/hashtable.h>
232 static void pulse_client_cb(pa_context *ctx, const pa_client_info *i, int eol, void *userdata)
234 struct pulse_op *op = userdata;
240 PULSE_STATE(PS_GET_SINKS);
241 PULSE_ASYNC_INIT_RUN(pa_context_get_sink_info_list, ctx, pulse_sink_cb);
247 char *host = stk_strdup(pa_proplist_gets(i->proplist, "application.process.host") ? : "?");
248 DBG("Pulse: CLIENT #%u: %s mod=%u drv=%s host=%s",
249 i->index, i->name, i->owner_module, i->driver, host);
250 pulse_dump_proplist(i->proplist);
252 struct pulse_client *c = pulse_client_lookup(i->index);
253 SET_STRING(c->name, i->name);
254 SET_STRING(c->host, host);
258 static void pulse_client_gone(int idx)
260 DBG("Pulse: REMOVE CLIENT #%d", idx);
261 struct pulse_client *c = pulse_client_lookup(idx);
262 pulse_client_remove(c);
266 static void pulse_shutdown(void)
268 DBG("Pulse: Shutting down");
269 pulse_client_cleanup();
270 pulse_sink_cleanup();
271 pulse_sink_input_cleanup();
274 static void pulse_subscribe_done_cb(pa_context *ctx, int success, void *userdata)
276 pulse_op_done(userdata);
279 msg(L_ERROR, "pa_context_subscribe failed: success=%d", success);
281 PULSE_STATE(PS_GET_CLIENTS);
282 PULSE_ASYNC_INIT_RUN(pa_context_get_client_info_list, ctx, pulse_client_cb);
285 static void pulse_event_cb(pa_context *ctx, pa_subscription_event_type_t type, uint32_t idx, void *userdata UNUSED)
287 DBG("Pulse: SUBSCRIBE EVENT type=%08x idx=%u", type, idx);
289 uns object = type & PA_SUBSCRIPTION_EVENT_FACILITY_MASK;
290 uns action = type & PA_SUBSCRIPTION_EVENT_TYPE_MASK;
293 case PA_SUBSCRIPTION_EVENT_CLIENT:
294 if (action == PA_SUBSCRIPTION_EVENT_NEW || action == PA_SUBSCRIPTION_EVENT_CHANGE)
295 PULSE_ASYNC_RUN(pa_context_get_client_info, ctx, idx, pulse_client_cb);
296 else if (action == PA_SUBSCRIPTION_EVENT_REMOVE)
297 pulse_client_gone(idx);
299 case PA_SUBSCRIPTION_EVENT_SINK:
300 if (action == PA_SUBSCRIPTION_EVENT_NEW || action == PA_SUBSCRIPTION_EVENT_CHANGE)
301 PULSE_ASYNC_RUN(pa_context_get_sink_info_by_index, ctx, idx, pulse_sink_cb);
302 else if (action == PA_SUBSCRIPTION_EVENT_REMOVE)
303 pulse_sink_gone(idx);
305 case PA_SUBSCRIPTION_EVENT_SINK_INPUT:
306 if (action == PA_SUBSCRIPTION_EVENT_NEW || action == PA_SUBSCRIPTION_EVENT_CHANGE)
307 PULSE_ASYNC_RUN(pa_context_get_sink_input_info, ctx, idx, pulse_sink_input_cb);
308 else if (action == PA_SUBSCRIPTION_EVENT_REMOVE)
309 pulse_sink_input_gone(idx);
314 static void pulse_state_cb(pa_context *ctx, void *userdata UNUSED)
316 int state = pa_context_get_state(ctx);
317 DBG("Pulse: State callback, new state = %d", state);
318 if (state == PA_CONTEXT_READY)
320 if (pulse_state == PS_OFFLINE)
322 PULSE_STATE(PS_SUBSCRIBE);
323 pa_context_set_subscribe_callback(ctx, pulse_event_cb, NULL);
324 PULSE_ASYNC_INIT_RUN(pa_context_subscribe, ctx, PA_SUBSCRIPTION_MASK_ALL, pulse_subscribe_done_cb);
329 if (pulse_state != PS_OFFLINE)
331 PULSE_STATE(PS_OFFLINE);
332 pulse_op_cancel_all();
336 if (state == PA_CONTEXT_FAILED && !timer_is_active(&pulse_connect_timer))
337 timer_add_rel(&pulse_connect_timer, 2000);
341 static void pulse_dump(void)
343 HASH_FOR_ALL(pulse_client, c)
345 DBG("## Client #%d: %s host=%s", c->idx, c->name, c->host);
349 HASH_FOR_ALL(pulse_sink, s)
351 DBG("## Sink #%d: %s channels=%u volume=%u base_vol=%u mute=%u",
352 s->idx, s->name, s->channels, s->volume, s->base_volume, s->mute);
356 HASH_FOR_ALL(pulse_sink_input, s)
358 DBG("## Sink input #%d: %s client=%d sink=%d channels=%u volume=%u mute=%u",
359 s->idx, s->name, s->client_idx, s->sink_idx, s->channels, s->volume, s->mute);
364 static void pulse_connect(struct main_timer *t)
366 DBG("Pulse: Connecting");
369 clist_init(&pulse_op_list);
372 pulse_sink_input_init();
375 pa_context_unref(pulse_ctx);
376 pulse_ctx = pa_context_new(&pmain_api, "ursaryd");
378 pa_context_set_state_callback(pulse_ctx, pulse_state_cb, NULL);
379 pa_context_connect(pulse_ctx, NULL, PA_CONTEXT_NOAUTOSPAWN, NULL);
382 static void pulse_init(void)
386 pulse_connect_timer.handler = pulse_connect;
387 timer_add_rel(&pulse_connect_timer, 0);
390 /*** High-level logic ***/
392 static struct main_timer update_timer;
394 static void update_ring_from_sink(int ring, const char *sink_name)
396 struct pulse_sink *s = pulse_sink_by_name(sink_name);
399 noct_set_ring(ring, RING_MODE_SINGLE_ON, 0x7f);
400 noct_set_button(ring, 0);
406 noct_set_ring(ring, RING_MODE_SINGLE_ON, 0x7f);
407 noct_set_button(ring, 1);
411 double vol = pa_sw_volume_to_linear(s->volume);
412 vol = CLAMP(vol, 0, 1);
413 int val = 0x7f * vol;
414 val = CLAMP(val, 12, 0x7f);
415 noct_set_ring(ring, RING_MODE_LEFT, val);
416 noct_set_button(ring, 0);
426 static struct client_map client_map[] = {
427 { 4, "Music Player Daemon", "albireo", 1 },
428 { 5, "MPlayer", NULL, 1 },
429 { 6, NULL, "ogion", 1 },
432 #define NUM_CLIENTS ARRAY_SIZE(client_map)
434 struct client_state {
439 static struct client_state client_state[NUM_CLIENTS];
441 static int find_client_by_rotary(int rotary)
444 for (i=0; i < NUM_CLIENTS; i++)
445 if (client_map[i].rotary == rotary)
450 static bool client_match_sink_input(struct client_map *cm, struct pulse_sink_input *s)
452 if (s->client_idx < 0 || s->sink_idx < 0)
455 struct pulse_client *c = pulse_client_lookup(s->client_idx);
459 return ((!cm->client || !strcmp(cm->client, c->name)) &&
460 (!cm->host || !strcmp(cm->host, c->host)));
463 static void calc_clients(void)
465 bzero(client_state, sizeof(client_state));
467 HASH_FOR_ALL(pulse_sink_input, s)
469 for (uns i=0; i < NUM_CLIENTS; i++)
471 struct client_map *cm = &client_map[i];
472 struct client_state *cs = &client_state[i];
473 if (client_match_sink_input(cm, s))
475 DBG("@@ Client #%d, sink input #%d -> rotary %d", s->client_idx, s->idx, cm->rotary);
476 cs->volume = MAX(cs->volume, s->volume);
477 cs->have_muted[!!s->mute] = 1;
484 static void update_clients(void)
488 for (uns i=0; i < NUM_CLIENTS; i++)
490 struct client_map *cm = &client_map[i];
491 struct client_state *cs = &client_state[i];
492 if (!cs->have_muted[0] && !cs->have_muted[1])
494 noct_set_ring(cm->rotary, RING_MODE_LEFT, 0);
495 noct_set_button(cm->rotary, 0);
497 else if (!cs->have_muted[0])
499 noct_set_ring(cm->rotary, RING_MODE_SINGLE_ON, 0x7f);
500 noct_set_button(cm->rotary, 1);
504 double vol = pa_sw_volume_to_linear(cs->volume);
505 vol = CLAMP(vol, 0, cm->range);
506 int val = 0x7f * vol / cm->range;
507 val = CLAMP(val, 12, 0x7f);
508 noct_set_ring(cm->rotary, RING_MODE_LEFT, val);
509 noct_set_button(cm->rotary, 0);
514 static void do_update(struct main_timer *t)
517 if (!noct_is_ready())
519 DBG("## UPDATE: Nocturn is not ready");
524 if (pulse_state != PS_ONLINE)
526 DBG("## UPDATE: Pulse is not online");
527 for (int i=0; i<=8; i++)
528 noct_set_ring(i, RING_MODE_LEFT, 0);
529 for (int i=0; i<8; i++)
531 noct_set_button(i, 1);
532 noct_set_button(i+8, 0);
539 DBG("## UPDATE: Waking up from the dead");
540 for (int i=0; i<=8; i++)
541 noct_set_ring(i, RING_MODE_LEFT, 0);
542 for (int i=0; i<16; i++)
543 noct_set_button(i, 0);
550 update_ring_from_sink(0, "ursarium");
551 update_ring_from_sink(1, "catarium");
555 void schedule_update(void)
557 timer_add_rel(&update_timer, 10);
560 static void update_sink_from_rotary(int delta, const char *sink_name)
562 struct pulse_sink *s = pulse_sink_by_name(sink_name);
566 double vol = pa_sw_volume_to_linear(s->volume);
568 vol = CLAMP(vol, 0, 1);
569 pa_volume_t pavol = pa_sw_volume_from_linear(vol);
570 if (pavol == s->volume)
573 pa_cvolume_set(&cvol, s->channels, pavol);
575 DBG("## Setting volume of sink %s to %d", s->name, cvol.values[0]);
576 PULSE_ASYNC_RUN(pa_context_set_sink_volume_by_index, pulse_ctx, s->idx, &cvol, pulse_success_cb);
579 static void update_client_from_rotary(int rotary, int delta)
581 int i = find_client_by_rotary(rotary);
584 struct client_map *cm = &client_map[i];
585 struct client_state *cs = &client_state[i];
588 double vol = pa_sw_volume_to_linear(cs->volume);
590 vol = CLAMP(vol, 0, cm->range);
591 pa_volume_t pavol = pa_sw_volume_from_linear(vol);
593 HASH_FOR_ALL(pulse_sink_input, s)
595 if (client_match_sink_input(cm, s) && s->volume != pavol)
597 DBG("@@ Client #%d, sink input #%d: setting volume=%u", s->client_idx, s->idx, pavol);
599 pa_cvolume_set(&cvol, s->channels, pavol);
600 PULSE_ASYNC_RUN(pa_context_set_sink_input_volume, pulse_ctx, s->idx, &cvol, pulse_success_cb);
606 void notify_rotary(int rotary, int delta)
608 if (pulse_state != PS_ONLINE)
610 DBG("## NOTIFY: Pulse is not online");
617 update_sink_from_rotary(delta, "ursarium");
620 update_sink_from_rotary(delta, "catarium");
623 update_sink_from_rotary(delta, "ursarium");
624 update_sink_from_rotary(delta, "catarium");
627 update_client_from_rotary(rotary, delta);
631 static void update_sink_mute_from_button(int on, const char *sink_name)
636 struct pulse_sink *s = pulse_sink_by_name(sink_name);
640 DBG("## Setting mute of sink %s to %d", s->name, !s->mute);
641 PULSE_ASYNC_RUN(pa_context_set_sink_mute_by_index, pulse_ctx, s->idx, !s->mute, pulse_success_cb);
644 static void update_client_from_button(int button, int on)
646 if (button >= 8 || !on)
649 int i = find_client_by_rotary(button);
652 struct client_map *cm = &client_map[i];
653 struct client_state *cs = &client_state[i];
656 if (!cs->have_muted[0] && !cs->have_muted[1])
658 uns mute = !cs->have_muted[1];
660 HASH_FOR_ALL(pulse_sink_input, s)
662 if (client_match_sink_input(cm, s))
664 DBG("@@ Client #%d, sink input #%d: setting mute=%u", s->client_idx, s->idx, mute);
665 PULSE_ASYNC_RUN(pa_context_set_sink_input_mute, pulse_ctx, s->idx, mute, pulse_success_cb);
671 void notify_button(int button, int on)
673 if (pulse_state != PS_ONLINE)
675 DBG("## NOTIFY: Pulse is not online");
682 update_sink_mute_from_button(on, "ursarium");
685 update_sink_mute_from_button(on, "catarium");
688 update_client_from_button(button, on);
692 int main(int argc UNUSED, char **argv)
696 update_timer.handler = do_update;
700 msg(L_INFO, "Initializing PulseAudio");
703 msg(L_INFO, "Entering main loop");