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 {
103 #define HASH_NODE struct pulse_sink_input
104 #define HASH_PREFIX(x) pulse_sink_input_##x
105 #define HASH_KEY_ATOMIC idx
106 #define HASH_WANT_CLEANUP
107 #define HASH_WANT_LOOKUP
108 #define HASH_WANT_REMOVE
109 #define HASH_ZERO_FILL
110 #include <ucw/hashtable.h>
112 #define SET_STRING(_field, _val) do { if (!_field || strcmp(_field, _val)) { xfree(_field); _field = xstrdup(_val); } } while (0)
114 static void pulse_sink_input_cb(pa_context *ctx UNUSED, const pa_sink_input_info *i, int eol, void *userdata)
116 struct pulse_op *op = userdata;
122 PULSE_STATE(PS_ONLINE);
129 DBG("Pulse: SINK INPUT #%u: %s client=%d sink=%d has_vol=%d vol_rw=%d volume=%u mute=%d",
130 i->index, i->name, i->client, i->sink, i->has_volume, i->volume_writable, i->volume.values[0], i->mute);
131 pulse_dump_proplist(i->proplist);
133 struct pulse_sink_input *s = pulse_sink_input_lookup(i->index);
134 SET_STRING(s->name, i->name);
135 s->client_idx = i->client;
136 s->sink_idx = i->sink;
137 s->volume = pa_cvolume_avg(&i->volume);
142 static void pulse_sink_input_gone(int idx)
144 DBG("Pulse: REMOVE SINK INPUT #%d", idx);
145 struct pulse_sink_input *s = pulse_sink_input_lookup(idx);
146 pulse_sink_input_remove(s);
158 #define HASH_NODE struct pulse_sink
159 #define HASH_PREFIX(x) pulse_sink_##x
160 #define HASH_KEY_ATOMIC idx
161 #define HASH_WANT_CLEANUP
162 #define HASH_WANT_LOOKUP
163 #define HASH_WANT_REMOVE
164 #define HASH_ZERO_FILL
165 #include <ucw/hashtable.h>
167 static void pulse_sink_cb(pa_context *ctx, const pa_sink_info *i, int eol, void *userdata)
169 struct pulse_op *op = userdata;
175 PULSE_STATE(PS_GET_SINK_INPUTS);
176 PULSE_ASYNC_INIT_RUN(pa_context_get_sink_input_info_list, ctx, pulse_sink_input_cb);
182 DBG("Pulse: SINK #%u: %s (%s) flags=%08x volume=%u mute=%d base_vol=%u state=%u",
183 i->index, i->name, i->description, i->flags, i->volume.values[0], i->mute, i->base_volume, i->state);
184 pulse_dump_proplist(i->proplist);
186 struct pulse_sink *s = pulse_sink_lookup(i->index);
187 SET_STRING(s->name, i->name);
188 s->volume = pa_cvolume_avg(&i->volume);
189 s->base_volume = i->base_volume;
194 static void pulse_sink_gone(int idx)
196 DBG("Pulse: REMOVE SINK #%d", idx);
197 struct pulse_sink *s = pulse_sink_lookup(idx);
198 pulse_sink_remove(s);
202 static struct pulse_sink *pulse_sink_by_name(const char *name)
204 HASH_FOR_ALL(pulse_sink, s)
206 if (!strcmp(s->name, name))
213 struct pulse_client {
219 #define HASH_NODE struct pulse_client
220 #define HASH_PREFIX(x) pulse_client_##x
221 #define HASH_KEY_ATOMIC idx
222 #define HASH_WANT_CLEANUP
223 #define HASH_WANT_LOOKUP
224 #define HASH_WANT_REMOVE
225 #define HASH_ZERO_FILL
226 #include <ucw/hashtable.h>
228 static void pulse_client_cb(pa_context *ctx, const pa_client_info *i, int eol, void *userdata)
230 struct pulse_op *op = userdata;
236 PULSE_STATE(PS_GET_SINKS);
237 PULSE_ASYNC_INIT_RUN(pa_context_get_sink_info_list, ctx, pulse_sink_cb);
243 char *host = stk_strdup(pa_proplist_gets(i->proplist, "application.process.host") ? : "?");
244 DBG("Pulse: CLIENT #%u: %s mod=%u drv=%s host=%s",
245 i->index, i->name, i->owner_module, i->driver, host);
246 pulse_dump_proplist(i->proplist);
248 struct pulse_client *c = pulse_client_lookup(i->index);
249 SET_STRING(c->name, i->name);
250 SET_STRING(c->host, host);
254 static void pulse_client_gone(int idx)
256 DBG("Pulse: REMOVE CLIENT #%d", idx);
257 struct pulse_client *c = pulse_client_lookup(idx);
258 pulse_client_remove(c);
262 static void pulse_shutdown(void)
264 DBG("Pulse: Shutting down");
265 pulse_client_cleanup();
266 pulse_sink_cleanup();
267 pulse_sink_input_cleanup();
270 static void pulse_subscribe_done_cb(pa_context *ctx, int success, void *userdata)
272 pulse_op_done(userdata);
275 msg(L_ERROR, "pa_context_subscribe failed: success=%d", success);
277 PULSE_STATE(PS_GET_CLIENTS);
278 PULSE_ASYNC_INIT_RUN(pa_context_get_client_info_list, ctx, pulse_client_cb);
281 static void pulse_event_cb(pa_context *ctx, pa_subscription_event_type_t type, uint32_t idx, void *userdata UNUSED)
283 DBG("Pulse: SUBSCRIBE EVENT type=%08x idx=%u", type, idx);
285 uns object = type & PA_SUBSCRIPTION_EVENT_FACILITY_MASK;
286 uns action = type & PA_SUBSCRIPTION_EVENT_TYPE_MASK;
289 case PA_SUBSCRIPTION_EVENT_CLIENT:
290 if (action == PA_SUBSCRIPTION_EVENT_NEW || action == PA_SUBSCRIPTION_EVENT_CHANGE)
291 PULSE_ASYNC_RUN(pa_context_get_client_info, ctx, idx, pulse_client_cb);
292 else if (action == PA_SUBSCRIPTION_EVENT_REMOVE)
293 pulse_client_gone(idx);
295 case PA_SUBSCRIPTION_EVENT_SINK:
296 if (action == PA_SUBSCRIPTION_EVENT_NEW || action == PA_SUBSCRIPTION_EVENT_CHANGE)
297 PULSE_ASYNC_RUN(pa_context_get_sink_info_by_index, ctx, idx, pulse_sink_cb);
298 else if (action == PA_SUBSCRIPTION_EVENT_REMOVE)
299 pulse_sink_gone(idx);
301 case PA_SUBSCRIPTION_EVENT_SINK_INPUT:
302 if (action == PA_SUBSCRIPTION_EVENT_NEW || action == PA_SUBSCRIPTION_EVENT_CHANGE)
303 PULSE_ASYNC_RUN(pa_context_get_sink_input_info, ctx, idx, pulse_sink_input_cb);
304 else if (action == PA_SUBSCRIPTION_EVENT_REMOVE)
305 pulse_sink_input_gone(idx);
310 static void pulse_state_cb(pa_context *ctx, void *userdata UNUSED)
312 int state = pa_context_get_state(ctx);
313 DBG("Pulse: State callback, new state = %d", state);
314 if (state == PA_CONTEXT_READY)
316 if (pulse_state == PS_OFFLINE)
318 PULSE_STATE(PS_SUBSCRIBE);
319 pa_context_set_subscribe_callback(ctx, pulse_event_cb, NULL);
320 PULSE_ASYNC_INIT_RUN(pa_context_subscribe, ctx, PA_SUBSCRIPTION_MASK_ALL, pulse_subscribe_done_cb);
325 if (pulse_state != PS_OFFLINE)
327 PULSE_STATE(PS_OFFLINE);
328 pulse_op_cancel_all();
332 if (state == PA_CONTEXT_FAILED && !timer_is_active(&pulse_connect_timer))
333 timer_add_rel(&pulse_connect_timer, 2000);
337 static void pulse_dump(void)
339 HASH_FOR_ALL(pulse_client, c)
341 DBG("## Client #%d: %s host=%s", c->idx, c->name, c->host);
345 HASH_FOR_ALL(pulse_sink, s)
347 DBG("## Sink #%d: %s volume=%u base_vol=%u mute=%u",
348 s->idx, s->name, s->volume, s->base_volume, s->mute);
352 HASH_FOR_ALL(pulse_sink_input, s)
354 DBG("## Sink input #%d: %s client=%d sink=%d volume=%u mute=%u",
355 s->idx, s->name, s->client_idx, s->sink_idx, s->volume, s->mute);
360 static void pulse_connect(struct main_timer *t)
362 DBG("Pulse: Connecting");
365 clist_init(&pulse_op_list);
368 pulse_sink_input_init();
371 pa_context_unref(pulse_ctx);
372 pulse_ctx = pa_context_new(&pmain_api, "ursaryd");
374 pa_context_set_state_callback(pulse_ctx, pulse_state_cb, NULL);
375 pa_context_connect(pulse_ctx, NULL, PA_CONTEXT_NOAUTOSPAWN, NULL);
378 static void pulse_init(void)
382 pulse_connect_timer.handler = pulse_connect;
383 timer_add_rel(&pulse_connect_timer, 0);
386 /*** High-level logic ***/
388 static struct main_timer update_timer;
390 static void update_ring_from_sink(int ring, const char *sink_name)
392 struct pulse_sink *s = pulse_sink_by_name(sink_name);
395 noct_set_ring(ring, RING_MODE_SINGLE_ON, 0x7f);
396 noct_set_button(ring, 0);
402 noct_set_ring(ring, RING_MODE_SINGLE_ON, 0x7f);
403 noct_set_button(ring, 1);
407 double vol = pa_sw_volume_to_linear(s->volume);
408 vol = CLAMP(vol, 0, 1);
409 int val = 0x7f * vol;
410 val = CLAMP(val, 12, 0x7f);
411 noct_set_ring(ring, RING_MODE_LEFT, val);
412 noct_set_button(ring, 0);
422 static struct client_map client_map[] = {
423 { 4, "Music Player Daemon", "albireo", 1 },
424 { 5, "MPlayer", NULL, 1 },
425 { 6, NULL, "ogion", 1 },
428 #define NUM_CLIENTS ARRAY_SIZE(client_map)
430 struct client_state {
435 static struct client_state client_state[NUM_CLIENTS];
437 static int find_client_by_rotary(int rotary)
440 for (i=0; i < NUM_CLIENTS; i++)
441 if (client_map[i].rotary == rotary)
446 static bool client_match_sink_input(struct client_map *cm, struct pulse_sink_input *s)
448 if (s->client_idx < 0 || s->sink_idx < 0)
451 struct pulse_client *c = pulse_client_lookup(s->client_idx);
455 return ((!cm->client || !strcmp(cm->client, c->name)) &&
456 (!cm->host || !strcmp(cm->host, c->host)));
459 static void calc_clients(void)
461 bzero(client_state, sizeof(client_state));
463 HASH_FOR_ALL(pulse_sink_input, s)
465 for (uns i=0; i < NUM_CLIENTS; i++)
467 struct client_map *cm = &client_map[i];
468 struct client_state *cs = &client_state[i];
469 if (client_match_sink_input(cm, s))
471 DBG("@@ Client #%d, sink input #%d -> rotary %d", s->client_idx, s->idx, cm->rotary);
472 cs->volume = MAX(cs->volume, s->volume);
473 cs->have_muted[!!s->mute] = 1;
480 static void update_clients(void)
484 for (uns i=0; i < NUM_CLIENTS; i++)
486 struct client_map *cm = &client_map[i];
487 struct client_state *cs = &client_state[i];
488 if (!cs->have_muted[0] && !cs->have_muted[1])
490 noct_set_ring(cm->rotary, RING_MODE_LEFT, 0);
491 noct_set_button(cm->rotary, 0);
493 else if (!cs->have_muted[0])
495 noct_set_ring(cm->rotary, RING_MODE_SINGLE_ON, 0x7f);
496 noct_set_button(cm->rotary, 1);
500 double vol = pa_sw_volume_to_linear(cs->volume);
501 vol = CLAMP(vol, 0, cm->range);
502 int val = 0x7f * vol / cm->range;
503 val = CLAMP(val, 12, 0x7f);
504 noct_set_ring(cm->rotary, RING_MODE_LEFT, val);
505 noct_set_button(cm->rotary, 0);
510 static void do_update(struct main_timer *t)
513 if (!noct_is_ready())
515 DBG("## UPDATE: Nocturn is not ready");
520 if (pulse_state != PS_ONLINE)
522 DBG("## UPDATE: Pulse is not online");
523 for (int i=0; i<=8; i++)
524 noct_set_ring(i, RING_MODE_LEFT, 0);
525 for (int i=0; i<8; i++)
527 noct_set_button(i, 1);
528 noct_set_button(i+8, 0);
535 DBG("## UPDATE: Waking up from the dead");
536 for (int i=0; i<=8; i++)
537 noct_set_ring(i, RING_MODE_LEFT, 0);
538 for (int i=0; i<16; i++)
539 noct_set_button(i, 0);
546 update_ring_from_sink(0, "ursarium");
547 update_ring_from_sink(1, "catarium");
551 void schedule_update(void)
553 timer_add_rel(&update_timer, 10); // FIXME
556 static void update_sink_from_rotary(int delta, const char *sink_name)
558 struct pulse_sink *s = pulse_sink_by_name(sink_name);
562 double vol = pa_sw_volume_to_linear(s->volume);
564 vol = CLAMP(vol, 0, 1);
565 pa_volume_t pavol = pa_sw_volume_from_linear(vol);
566 if (pavol == s->volume)
569 pa_cvolume_set(&cvol, 2, pavol);
571 DBG("## Setting volume of sink %s to %d", s->name, cvol.values[0]);
572 PULSE_ASYNC_RUN(pa_context_set_sink_volume_by_index, pulse_ctx, s->idx, &cvol, pulse_success_cb);
575 static void update_client_from_rotary(int rotary, int delta)
577 int i = find_client_by_rotary(rotary);
580 struct client_map *cm = &client_map[i];
581 struct client_state *cs = &client_state[i];
584 double vol = pa_sw_volume_to_linear(cs->volume);
586 vol = CLAMP(vol, 0, cm->range);
587 pa_volume_t pavol = pa_sw_volume_from_linear(vol);
589 HASH_FOR_ALL(pulse_sink_input, s)
591 if (client_match_sink_input(cm, s) && s->volume != pavol)
593 DBG("@@ Client #%d, sink input #%d: setting volume=%u", s->client_idx, s->idx, pavol);
595 pa_cvolume_set(&cvol, 2, pavol); // FIXME: #channels
596 PULSE_ASYNC_RUN(pa_context_set_sink_input_volume, pulse_ctx, s->idx, &cvol, pulse_success_cb);
602 void notify_rotary(int rotary, int delta)
604 if (pulse_state != PS_ONLINE)
606 DBG("## NOTIFY: Pulse is not online");
613 update_sink_from_rotary(delta, "ursarium");
616 update_sink_from_rotary(delta, "catarium");
619 update_sink_from_rotary(delta, "ursarium");
620 update_sink_from_rotary(delta, "catarium");
623 update_client_from_rotary(rotary, delta);
627 static void update_sink_mute_from_button(int on, const char *sink_name)
632 struct pulse_sink *s = pulse_sink_by_name(sink_name);
636 DBG("## Setting mute of sink %s to %d", s->name, !s->mute);
637 PULSE_ASYNC_RUN(pa_context_set_sink_mute_by_index, pulse_ctx, s->idx, !s->mute, pulse_success_cb);
640 static void update_client_from_button(int button, int on)
642 if (button >= 8 || !on)
645 int i = find_client_by_rotary(button);
648 struct client_map *cm = &client_map[i];
649 struct client_state *cs = &client_state[i];
652 if (!cs->have_muted[0] && !cs->have_muted[1])
654 uns mute = !cs->have_muted[1];
656 HASH_FOR_ALL(pulse_sink_input, s)
658 if (client_match_sink_input(cm, s))
660 DBG("@@ Client #%d, sink input #%d: setting mute=%u", s->client_idx, s->idx, mute);
661 PULSE_ASYNC_RUN(pa_context_set_sink_input_mute, pulse_ctx, s->idx, mute, pulse_success_cb);
667 void notify_button(int button, int on)
669 if (pulse_state != PS_ONLINE)
671 DBG("## NOTIFY: Pulse is not online");
678 update_sink_mute_from_button(on, "ursarium");
681 update_sink_mute_from_button(on, "catarium");
684 update_client_from_button(button, on);
688 int main(int argc UNUSED, char **argv)
692 update_timer.handler = do_update;
696 msg(L_INFO, "Initializing PulseAudio");
699 msg(L_INFO, "Entering main loop");