pa_fdsem *pa_fdsem_new(void) {
pa_fdsem *f;
f = pa_xmalloc(PA_ALIGN(sizeof(pa_fdsem)) + PA_ALIGN(sizeof(pa_fdsem_data)));
#ifdef HAVE_SYS_EVENTFD_H
if ((f->efd = eventfd(0, EFD_CLOEXEC)) >= 0)
f->fds[0] = f->fds[1] = -1;
else
#endif
{
if (pa_pipe_cloexec(f->fds) < 0) {
pa_xfree(f);
return NULL;
}
}
f->data = (pa_fdsem_data*) ((uint8_t*) f + PA_ALIGN(sizeof(pa_fdsem)));
pa_atomic_store(&f->data->waiting, 0);
pa_atomic_store(&f->data->signalled, 0);
pa_atomic_store(&f->data->in_pipe, 0);
return f;
}
pa_flist *pa_flist_new_with_name(unsigned size, const char *name) {
pa_flist *l;
unsigned i;
pa_assert(name);
if (!size)
size = FLIST_SIZE;
l = pa_xmalloc0(sizeof(pa_flist) + sizeof(pa_flist_elem) * size);
l->name = pa_xstrdup(name);
l->size = size;
while (1 << l->tag_shift < (int) size)
l->tag_shift++;
l->index_mask = (1 << l->tag_shift) - 1;
l->tag_mask = INT_MAX - l->index_mask;
pa_atomic_store(&l->stored, -1);
pa_atomic_store(&l->empty, -1);
for (i=0; i < size; i++) {
stack_push(l, &l->empty, &l->table[i]);
}
return l;
}
pa_fdsem *pa_fdsem_new_shm(pa_fdsem_data *data, int* event_fd) {
pa_fdsem *f = NULL;
pa_assert(data);
pa_assert(event_fd);
#ifdef HAVE_SYS_EVENTFD_H
f = pa_xnew(pa_fdsem, 1);
if ((f->efd = eventfd(0, EFD_CLOEXEC)) < 0) {
pa_xfree(f);
return NULL;
}
f->fds[0] = f->fds[1] = -1;
f->data = data;
pa_atomic_store(&f->data->waiting, 0);
pa_atomic_store(&f->data->signalled, 0);
pa_atomic_store(&f->data->in_pipe, 0);
#endif
return f;
}
/* No lock necessary */
pa_memblock *pa_memblock_new_user(pa_mempool *p, void *d, size_t length, pa_free_cb_t free_cb, bool read_only) {
pa_memblock *b;
pa_assert(p);
pa_assert(d);
pa_assert(length);
pa_assert(length != (size_t) -1);
pa_assert(free_cb);
if (!(b = pa_flist_pop(PA_STATIC_FLIST_GET(unused_memblocks))))
b = pa_xnew(pa_memblock, 1);
PA_REFCNT_INIT(b);
b->pool = p;
b->type = PA_MEMBLOCK_USER;
b->read_only = read_only;
b->is_silence = false;
pa_atomic_ptr_store(&b->data, d);
b->length = length;
pa_atomic_store(&b->n_acquired, 0);
pa_atomic_store(&b->please_signal, 0);
b->per_type.user.free_cb = free_cb;
stat_add(b);
return b;
}
/* No lock necessary */
pa_memblock *pa_memblock_new_pool(pa_mempool *p, size_t length) {
pa_memblock *b = NULL;
struct mempool_slot *slot;
static int mempool_disable = 0;
pa_assert(p);
pa_assert(length);
if (mempool_disable == 0)
mempool_disable = getenv("PULSE_MEMPOOL_DISABLE") ? 1 : -1;
if (mempool_disable > 0)
return NULL;
/* If -1 is passed as length we choose the size for the caller: we
* take the largest size that fits in one of our slots. */
if (length == (size_t) -1)
length = pa_mempool_block_size_max(p);
if (p->block_size >= PA_ALIGN(sizeof(pa_memblock)) + length) {
if (!(slot = mempool_allocate_slot(p)))
return NULL;
b = mempool_slot_data(slot);
b->type = PA_MEMBLOCK_POOL;
pa_atomic_ptr_store(&b->data, (uint8_t*) b + PA_ALIGN(sizeof(pa_memblock)));
} else if (p->block_size >= length) {
if (!(slot = mempool_allocate_slot(p)))
return NULL;
if (!(b = pa_flist_pop(PA_STATIC_FLIST_GET(unused_memblocks))))
b = pa_xnew(pa_memblock, 1);
b->type = PA_MEMBLOCK_POOL_EXTERNAL;
pa_atomic_ptr_store(&b->data, mempool_slot_data(slot));
} else {
pa_log_debug("Memory block too large for pool: %lu > %lu", (unsigned long) length, (unsigned long) p->block_size);
pa_atomic_inc(&p->stat.n_too_large_for_pool);
return NULL;
}
PA_REFCNT_INIT(b);
b->pool = p;
b->read_only = b->is_silence = false;
b->length = length;
pa_atomic_store(&b->n_acquired, 0);
pa_atomic_store(&b->please_signal, 0);
stat_add(b);
return b;
}
/* Self-locked */
pa_memblock* pa_memimport_get(pa_memimport *i, uint32_t block_id, uint32_t shm_id, size_t offset, size_t size) {
pa_memblock *b = NULL;
pa_memimport_segment *seg;
pa_assert(i);
pa_mutex_lock(i->mutex);
if ((b = pa_hashmap_get(i->blocks, PA_UINT32_TO_PTR(block_id)))) {
pa_memblock_ref(b);
goto finish;
}
if (pa_hashmap_size(i->blocks) >= PA_MEMIMPORT_SLOTS_MAX)
goto finish;
if (!(seg = pa_hashmap_get(i->segments, PA_UINT32_TO_PTR(shm_id))))
if (!(seg = segment_attach(i, shm_id)))
goto finish;
if (offset+size > seg->memory.size)
goto finish;
if (!(b = pa_flist_pop(PA_STATIC_FLIST_GET(unused_memblocks))))
b = pa_xnew(pa_memblock, 1);
PA_REFCNT_INIT(b);
b->pool = i->pool;
b->type = PA_MEMBLOCK_IMPORTED;
b->read_only = true;
b->is_silence = false;
pa_atomic_ptr_store(&b->data, (uint8_t*) seg->memory.ptr + offset);
b->length = size;
pa_atomic_store(&b->n_acquired, 0);
pa_atomic_store(&b->please_signal, 0);
b->per_type.imported.id = block_id;
b->per_type.imported.segment = seg;
pa_hashmap_put(i->blocks, PA_UINT32_TO_PTR(block_id), b);
seg->n_blocks++;
stat_add(b);
finish:
pa_mutex_unlock(i->mutex);
return b;
}
pa_mempool* pa_mempool_new(int shared) {
pa_mempool *p;
p = pa_xnew(pa_mempool, 1);
p->mutex = pa_mutex_new(TRUE, TRUE);
p->semaphore = pa_semaphore_new(0);
p->block_size = PA_PAGE_ALIGN(PA_MEMPOOL_SLOT_SIZE);
if (p->block_size < PA_PAGE_SIZE)
p->block_size = PA_PAGE_SIZE;
p->n_blocks = PA_MEMPOOL_SLOTS_MAX;
pa_assert(p->block_size > PA_ALIGN(sizeof(struct mempool_slot)));
if (pa_shm_create_rw(&p->memory, p->n_blocks * p->block_size, shared, 0700) < 0) {
pa_xfree(p);
return NULL;
}
memset(&p->stat, 0, sizeof(p->stat));
pa_atomic_store(&p->n_init, 0);
PA_LLIST_HEAD_INIT(pa_memimport, p->imports);
PA_LLIST_HEAD_INIT(pa_memexport, p->exports);
p->free_slots = pa_flist_new(p->n_blocks*2);
return p;
}
pa_flist *pa_flist_new(unsigned size) {
pa_flist *l;
if (!size)
size = FLIST_SIZE;
pa_assert(pa_is_power_of_two(size));
l = pa_xmalloc0(PA_ALIGN(sizeof(pa_flist)) + (sizeof(pa_atomic_ptr_t) * size));
l->size = size;
pa_atomic_store(&l->read_idx, 0);
pa_atomic_store(&l->write_idx, 0);
pa_atomic_store(&l->length, 0);
return l;
}
pa_aupdate *pa_aupdate_new(void) {
pa_aupdate *a;
a = pa_xnew(pa_aupdate, 1);
pa_atomic_store(&a->read_lock, 0);
a->write_lock = pa_mutex_new(false, false);
a->semaphore = pa_semaphore_new(0);
return a;
}
/* No lock necessary */
pa_memblock *pa_memblock_new_fixed(pa_mempool *p, void *d, size_t length, int read_only) {
pa_memblock *b;
pa_assert(p);
pa_assert(d);
pa_assert(length != (size_t) -1);
pa_assert(length > 0);
if (!(b = pa_flist_pop(PA_STATIC_FLIST_GET(unused_memblocks))))
b = pa_xnew(pa_memblock, 1);
PA_REFCNT_INIT(b);
b->pool = p;
b->type = PA_MEMBLOCK_FIXED;
b->read_only = read_only;
pa_atomic_ptr_store(&b->data, d);
b->length = length;
pa_atomic_store(&b->n_acquired, 0);
pa_atomic_store(&b->please_signal, 0);
stat_add(b);
return b;
}
/* Lock free push to linked list stack */
static void stack_push(pa_flist *flist, pa_atomic_t *list, pa_flist_elem *new_elem) {
int tag, newindex, next;
pa_assert(list);
tag = pa_atomic_inc(&flist->current_tag);
newindex = new_elem - flist->table;
pa_assert(newindex >= 0 && newindex < (int) flist->size);
newindex |= (tag << flist->tag_shift) & flist->tag_mask;
do {
next = pa_atomic_load(list);
pa_atomic_store(&new_elem->next, next);
} while (!pa_atomic_cmpxchg(list, next, newindex));
}
/* No lock necessary */
static pa_memblock *memblock_new_appended(pa_mempool *p, size_t length) {
pa_memblock *b;
pa_assert(p);
pa_assert(length);
/* If -1 is passed as length we choose the size for the caller. */
if (length == (size_t) -1)
length = pa_mempool_block_size_max(p);
b = pa_xmalloc(PA_ALIGN(sizeof(pa_memblock)) + length);
PA_REFCNT_INIT(b);
b->pool = p;
b->type = PA_MEMBLOCK_APPENDED;
b->read_only = b->is_silence = false;
pa_atomic_ptr_store(&b->data, (uint8_t*) b + PA_ALIGN(sizeof(pa_memblock)));
b->length = length;
pa_atomic_store(&b->n_acquired, 0);
pa_atomic_store(&b->please_signal, 0);
stat_add(b);
return b;
}
pa_mempool* pa_mempool_new(bool shared, size_t size) {
pa_mempool *p;
char t1[PA_BYTES_SNPRINT_MAX], t2[PA_BYTES_SNPRINT_MAX];
p = pa_xnew(pa_mempool, 1);
p->block_size = PA_PAGE_ALIGN(PA_MEMPOOL_SLOT_SIZE);
if (p->block_size < PA_PAGE_SIZE)
p->block_size = PA_PAGE_SIZE;
if (size <= 0)
p->n_blocks = PA_MEMPOOL_SLOTS_MAX;
else {
p->n_blocks = (unsigned) (size / p->block_size);
if (p->n_blocks < 2)
p->n_blocks = 2;
}
if (pa_shm_create_rw(&p->memory, p->n_blocks * p->block_size, shared, 0700) < 0) {
pa_xfree(p);
return NULL;
}
pa_log_debug("Using %s memory pool with %u slots of size %s each, total size is %s, maximum usable slot size is %lu",
p->memory.shared ? "shared" : "private",
p->n_blocks,
pa_bytes_snprint(t1, sizeof(t1), (unsigned) p->block_size),
pa_bytes_snprint(t2, sizeof(t2), (unsigned) (p->n_blocks * p->block_size)),
(unsigned long) pa_mempool_block_size_max(p));
memset(&p->stat, 0, sizeof(p->stat));
pa_atomic_store(&p->n_init, 0);
PA_LLIST_HEAD_INIT(pa_memimport, p->imports);
PA_LLIST_HEAD_INIT(pa_memexport, p->exports);
p->mutex = pa_mutex_new(true, true);
p->semaphore = pa_semaphore_new(0);
p->free_slots = pa_flist_new(p->n_blocks);
return p;
}
int pa__init(pa_module *m)
{
pa_modargs *ma;
const char *master_sink_name;
const char *master_source_name;
const char *max_hw_frag_size_str;
const char *aep_runtime;
pa_source *master_source;
struct userdata *u;
pa_proplist *p;
pa_sink *master_sink;
const char *raw_sink_name;
const char *raw_source_name;
const char *voice_sink_name;
const char *voice_source_name;
const char *dbus_type;
int max_hw_frag_size = 3840;
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs)))
{
pa_log_error("Failed to parse module arguments");
goto fail;
}
voice_turn_sidetone_down();
master_sink_name = pa_modargs_get_value(ma, "master_sink", NULL);
master_source_name = pa_modargs_get_value(ma, "master_source", NULL);
raw_sink_name = pa_modargs_get_value(ma, "raw_sink_name", "sink.voice.raw");
raw_source_name = pa_modargs_get_value(ma, "raw_source_name",
"source.voice.raw");
voice_sink_name = pa_modargs_get_value(ma, "voice_sink_name", "sink.voice");
voice_source_name = pa_modargs_get_value(ma, "voice_source_name",
"source.voice");
dbus_type = pa_modargs_get_value(ma, "dbus_type", "session");
max_hw_frag_size_str = pa_modargs_get_value(ma, "max_hw_frag_size", "3840");
aep_runtime = pa_modargs_get_value(ma, "aep_runtime",
"bbaid1n-wr0-h9a22b--dbxpb--");
voice_set_aep_runtime_switch(aep_runtime);
pa_log_debug("Got arguments: master_sink=\"%s\" master_source=\"%s\" raw_sink_name=\"%s\" raw_source_name=\"%s\" dbus_type=\"%s\" max_hw_frag_size=\"%s\". ",
master_sink_name, master_source_name, raw_sink_name,
raw_source_name, dbus_type, max_hw_frag_size_str);
if (!(master_sink = pa_namereg_get(m->core, master_sink_name, PA_NAMEREG_SINK)))
{
pa_log("Master sink \"%s\" not found", master_sink_name);
goto fail;
}
if (!(master_source = pa_namereg_get(m->core, master_source_name, PA_NAMEREG_SOURCE)))
{
pa_log( "Master source \"%s\" not found", master_source_name);
goto fail;
}
if (master_sink->sample_spec.format != master_source->sample_spec.format &&
master_sink->sample_spec.rate != master_source->sample_spec.rate &&
master_sink->sample_spec.channels != master_source->sample_spec.channels)
{
pa_log("Master source and sink must have same sample spec");
goto fail;
}
if (pa_atoi(max_hw_frag_size_str, &max_hw_frag_size) < 0 ||
max_hw_frag_size < 960 ||
max_hw_frag_size > 128*960)
{
pa_log("Bad value for max_hw_frag_size: %s", max_hw_frag_size_str);
goto fail;
}
m->userdata = u = pa_xnew0(struct userdata, 1);
u->core = m->core;
u->module = m;
u->modargs = ma;
u->master_sink = master_sink;
u->master_source = master_source;
u->mainloop_handler = voice_mainloop_handler_new(u);;
u->ul_timing_advance = 500; // = 500 micro seconds, seems to be a good default value
pa_channel_map_init_mono(&u->mono_map);
pa_channel_map_init_stereo(&u->stereo_map);
u->hw_sample_spec.format = PA_SAMPLE_S16NE;
u->hw_sample_spec.rate = SAMPLE_RATE_HW_HZ;
u->hw_sample_spec.channels = 2;
u->hw_mono_sample_spec.format = PA_SAMPLE_S16NE;
u->hw_mono_sample_spec.rate = SAMPLE_RATE_HW_HZ;
u->hw_mono_sample_spec.channels = 1;
u->aep_sample_spec.format = PA_SAMPLE_S16NE;
u->aep_sample_spec.rate = SAMPLE_RATE_AEP_HZ;
u->aep_sample_spec.channels = 1;
pa_channel_map_init_mono(&u->aep_channel_map);
// The result is rounded down incorrectly thus +1
u->aep_fragment_size = pa_usec_to_bytes(PERIOD_AEP_USECS+1, &u->aep_sample_spec);
u->aep_hw_fragment_size = pa_usec_to_bytes(PERIOD_AEP_USECS+1, &u->hw_sample_spec);
u->hw_fragment_size = pa_usec_to_bytes(PERIOD_MASTER_USECS+1, &u->hw_sample_spec);
u->hw_fragment_size_max = max_hw_frag_size;
if (0 != (u->hw_fragment_size_max % u->hw_fragment_size))
u->hw_fragment_size_max += u->hw_fragment_size - (u->hw_fragment_size_max % u->hw_fragment_size);
u->aep_hw_mono_fragment_size = pa_usec_to_bytes(PERIOD_AEP_USECS+1, &u->hw_mono_sample_spec);
u->hw_mono_fragment_size = pa_usec_to_bytes(PERIOD_MASTER_USECS+1, &u->hw_mono_sample_spec);
u->voice_ul_fragment_size = pa_usec_to_bytes(PERIOD_CMT_USECS+1, &u->aep_sample_spec);
pa_silence_memchunk_get(&u->core->silence_cache,
u->core->mempool,
&u->aep_silence_memchunk,
&u->aep_sample_spec,
u->aep_fragment_size);
voice_memchunk_pool_load(u);
if (voice_init_raw_sink(u, raw_sink_name))
goto fail;
pa_sink_put(u->raw_sink);
if (voice_init_voip_sink(u, voice_sink_name))
goto fail;
pa_sink_put(u->voip_sink);
if (voice_init_aep_sink_input(u))
goto fail;
pa_atomic_store(&u->mixer_state, PROP_MIXER_TUNING_PRI);
u->alt_mixer_compensation = PA_VOLUME_NORM;
if (voice_init_hw_sink_input(u))
goto fail;
u->sink_temp_buff = pa_xmalloc(2 * u->hw_fragment_size_max);
u->sink_temp_buff_len = 2 * u->hw_fragment_size_max;
u->dl_memblockq =
pa_memblockq_new(0, 2 * u->voice_ul_fragment_size, 0,
pa_frame_size(&u->aep_sample_spec), 0, 0, 0, NULL);
if (voice_init_raw_source(u, raw_source_name))
goto fail;
pa_source_put(u->raw_source);
if (voice_init_voip_source(u, voice_source_name))
goto fail;
pa_source_put(u->voip_source);
if (voice_init_hw_source_output(u))
goto fail;
u->hw_source_memblockq =
pa_memblockq_new(0, 2 * u->hw_fragment_size_max, 0,
pa_frame_size(&u->hw_sample_spec), 0, 0, 0, NULL);
u->ul_memblockq =
pa_memblockq_new(0, 2 * u->voice_ul_fragment_size, 0,
pa_frame_size(&u->aep_sample_spec), 0, 0, 0, NULL);
u->cs_call_sink_input = 0;
u->dl_sideinfo_queue = pa_queue_new();
u->linear_q15_master_volume_L = INT16_MAX;
u->linear_q15_master_volume_R = INT16_MAX;
u->field_2CC = 0;
voice_aep_ear_ref_init(u);
if (voice_convert_init(u))
goto fail;
if (voice_init_event_forwarder(u, dbus_type) || voice_init_cmtspeech(u))
goto fail;
if (!(u->wb_mic_iir_eq = iir_eq_new(u->hw_fragment_size / 2,
master_source->sample_spec.channels)))
goto fail;
if (!(u->nb_mic_iir_eq = iir_eq_new( u->aep_fragment_size / 2, 1)))
goto fail;
if (!(u->wb_ear_iir_eq = fir_eq_new(master_sink->sample_spec.rate,
master_sink->sample_spec.channels)))
goto fail;
if (!(u->nb_ear_iir_eq = iir_eq_new(u->aep_fragment_size / 2, 1)))
goto fail;
u->input_task_active = FALSE;
u->xprot_watchdog = TRUE;
u->ambient_temp = 30;
if (!(u->xprot = xprot_new()))
goto fail;
u->aep_enable = FALSE;
u->wb_meq_enable = FALSE;
u->wb_eeq_enable = FALSE;
u->nb_meq_enable = FALSE;
u->nb_eeq_enable = FALSE;
u->xprot_enable = FALSE;
u->updating_parameters = FALSE;
u->sink_proplist_changed_slot =
pa_hook_connect(&m->core->hooks[PA_CORE_HOOK_SINK_PROPLIST_CHANGED],
0, (pa_hook_cb_t)sink_proplist_changed_cb, u);;
u->source_proplist_changed_slot =
pa_hook_connect( &m->core->hooks[PA_CORE_HOOK_SOURCE_PROPLIST_CHANGED], 0,
(pa_hook_cb_t)source_proplist_changed_cb, u);
u->mode_accessory_hwid_hash = 0;
p = pa_proplist_new();
pa_proplist_sets(p, PA_NOKIA_PROP_AUDIO_MODE, "ihf");
pa_proplist_sets(p, PA_NOKIA_PROP_AUDIO_ACCESSORY_HWID, "");
pa_sink_update_proplist( master_sink, PA_UPDATE_REPLACE, p);
pa_proplist_free(p);
pa_source_output_put(u->hw_source_output);
pa_sink_input_put(u->hw_sink_input);
pa_sink_input_put(u->aep_sink_input);
u->sink_subscription = pa_subscription_new(m->core, PA_SUBSCRIPTION_MASK_SINK,
sink_subscribe_cb, u);
return 0;
fail:
if (ma)
pa_modargs_free(ma);
pa__done(m);
return -1;
}
/* Generic sink state change logic. Used by raw_sink and voip_sink */
int voice_sink_set_state(pa_sink *s, pa_sink *other, pa_sink_state_t state) {
struct userdata *u;
pa_sink *om_sink;
pa_sink_assert_ref(s);
pa_assert_se(u = s->userdata);
if (!other) {
pa_log_debug("other sink not initialized or freed");
return 0;
}
pa_sink_assert_ref(other);
om_sink = u->master_sink;
if (u->hw_sink_input && PA_SINK_INPUT_IS_LINKED(pa_sink_input_get_state(u->hw_sink_input))) {
if (pa_sink_input_get_state(u->hw_sink_input) == PA_SINK_INPUT_CORKED) {
if (PA_SINK_IS_OPENED(state) ||
PA_SINK_IS_OPENED(pa_sink_get_state(other)) ||
pa_atomic_load(&u->cmt_connection.dl_state) == CMT_DL_ACTIVE) {
pa_sink_input_cork(u->hw_sink_input, FALSE);
pa_log_debug("hw_sink_input uncorked");
}
}
else {
if (state == PA_SINK_SUSPENDED &&
pa_sink_get_state(other) == PA_SINK_SUSPENDED &&
pa_atomic_load(&u->cmt_connection.dl_state) != CMT_DL_ACTIVE) {
pa_sink_input_cork(u->hw_sink_input, TRUE);
pa_log_debug("hw_sink_input corked");
}
}
}
if (om_sink == NULL) {
pa_log_info("No master sink, assuming primary mixer tuning.\n");
pa_atomic_store(&u->mixer_state, PROP_MIXER_TUNING_PRI);
}
else if (pa_atomic_load(&u->cmt_connection.dl_state) == CMT_DL_ACTIVE ||
(pa_sink_get_state(u->voip_sink) <= PA_SINK_SUSPENDED &&
voice_voip_sink_used_by(u))) {
if (pa_atomic_load(&u->mixer_state) == PROP_MIXER_TUNING_PRI) {
pa_proplist *p = pa_proplist_new();
pa_assert(p);
pa_proplist_sets(p, PROP_MIXER_TUNING_MODE, PROP_MIXER_TUNING_ALT_S);
pa_sink_update_proplist(om_sink, PA_UPDATE_REPLACE, p);
pa_atomic_store(&u->mixer_state, PROP_MIXER_TUNING_ALT);
pa_proplist_free(p);
if (u->sidetone_enable)
voice_enable_sidetone(u,1);
}
}
else {
if (pa_atomic_load(&u->mixer_state) == PROP_MIXER_TUNING_ALT) {
pa_proplist *p = pa_proplist_new();
pa_assert(p);
pa_proplist_sets(p, PROP_MIXER_TUNING_MODE, PROP_MIXER_TUNING_PRI_S);
pa_sink_update_proplist(om_sink, PA_UPDATE_REPLACE, p);
pa_atomic_store(&u->mixer_state, PROP_MIXER_TUNING_PRI);
pa_proplist_free(p);
voice_enable_sidetone(u,0);
}
}
return 0;
}
static int sharedmem_create(pa_shm *m, pa_mem_type_t type, size_t size, mode_t mode) {
#if defined(HAVE_SHM_OPEN) || defined(HAVE_MEMFD)
char fn[32];
int fd = -1;
struct shm_marker *marker;
bool do_unlink = false;
/* Each time we create a new SHM area, let's first drop all stale
* ones */
pa_shm_cleanup();
pa_random(&m->id, sizeof(m->id));
switch (type) {
#ifdef HAVE_SHM_OPEN
case PA_MEM_TYPE_SHARED_POSIX:
segment_name(fn, sizeof(fn), m->id);
fd = shm_open(fn, O_RDWR|O_CREAT|O_EXCL, mode);
do_unlink = true;
break;
#endif
#ifdef HAVE_MEMFD
case PA_MEM_TYPE_SHARED_MEMFD:
fd = memfd_create("pulseaudio", MFD_ALLOW_SEALING);
break;
#endif
default:
goto fail;
}
if (fd < 0) {
pa_log("%s open() failed: %s", pa_mem_type_to_string(type), pa_cstrerror(errno));
goto fail;
}
m->type = type;
m->size = size + shm_marker_size(type);
m->do_unlink = do_unlink;
if (ftruncate(fd, (off_t) m->size) < 0) {
pa_log("ftruncate() failed: %s", pa_cstrerror(errno));
goto fail;
}
#ifndef MAP_NORESERVE
#define MAP_NORESERVE 0
#endif
if ((m->ptr = mmap(NULL, PA_PAGE_ALIGN(m->size), PROT_READ|PROT_WRITE, MAP_SHARED|MAP_NORESERVE, fd, (off_t) 0)) == MAP_FAILED) {
pa_log("mmap() failed: %s", pa_cstrerror(errno));
goto fail;
}
if (type == PA_MEM_TYPE_SHARED_POSIX) {
/* We store our PID at the end of the shm block, so that we
* can check for dead shm segments later */
marker = (struct shm_marker*) ((uint8_t*) m->ptr + m->size - shm_marker_size(type));
pa_atomic_store(&marker->pid, (int) getpid());
pa_atomic_store(&marker->marker, SHM_MARKER);
}
/* For memfds, we keep the fd open until we pass it
* to the other PA endpoint over unix domain socket. */
if (type == PA_MEM_TYPE_SHARED_MEMFD)
m->fd = fd;
else {
pa_assert_se(pa_close(fd) == 0);
m->fd = -1;
}
return 0;
fail:
if (fd >= 0) {
#ifdef HAVE_SHM_OPEN
if (type == PA_MEM_TYPE_SHARED_POSIX)
shm_unlink(fn);
#endif
pa_close(fd);
}
#endif /* defined(HAVE_SHM_OPEN) || defined(HAVE_MEMFD) */
return -1;
}
int pa_shm_create_rw(pa_shm *m, size_t size, bool shared, mode_t mode) {
#ifdef HAVE_SHM_OPEN
char fn[32];
int fd = -1;
#endif
pa_assert(m);
pa_assert(size > 0);
pa_assert(size <= MAX_SHM_SIZE);
pa_assert(!(mode & ~0777));
pa_assert(mode >= 0600);
/* Each time we create a new SHM area, let's first drop all stale
* ones */
pa_shm_cleanup();
/* Round up to make it page aligned */
size = PA_PAGE_ALIGN(size);
if (!shared) {
m->id = 0;
m->size = size;
#ifdef MAP_ANONYMOUS
if ((m->ptr = mmap(NULL, m->size, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_PRIVATE, -1, (off_t) 0)) == MAP_FAILED) {
pa_log("mmap() failed: %s", pa_cstrerror(errno));
goto fail;
}
#elif defined(HAVE_POSIX_MEMALIGN)
{
int r;
if ((r = posix_memalign(&m->ptr, PA_PAGE_SIZE, size)) < 0) {
pa_log("posix_memalign() failed: %s", pa_cstrerror(r));
goto fail;
}
}
#else
m->ptr = pa_xmalloc(m->size);
#endif
m->do_unlink = false;
} else {
#ifdef HAVE_SHM_OPEN
struct shm_marker *marker;
pa_random(&m->id, sizeof(m->id));
segment_name(fn, sizeof(fn), m->id);
if ((fd = shm_open(fn, O_RDWR|O_CREAT|O_EXCL, mode)) < 0) {
pa_log("shm_open() failed: %s", pa_cstrerror(errno));
goto fail;
}
m->size = size + SHM_MARKER_SIZE;
if (ftruncate(fd, (off_t) m->size) < 0) {
pa_log("ftruncate() failed: %s", pa_cstrerror(errno));
goto fail;
}
#ifndef MAP_NORESERVE
#define MAP_NORESERVE 0
#endif
if ((m->ptr = mmap(NULL, PA_PAGE_ALIGN(m->size), PROT_READ|PROT_WRITE, MAP_SHARED|MAP_NORESERVE, fd, (off_t) 0)) == MAP_FAILED) {
pa_log("mmap() failed: %s", pa_cstrerror(errno));
goto fail;
}
/* We store our PID at the end of the shm block, so that we
* can check for dead shm segments later */
marker = (struct shm_marker*) ((uint8_t*) m->ptr + m->size - SHM_MARKER_SIZE);
pa_atomic_store(&marker->pid, (int) getpid());
pa_atomic_store(&marker->marker, SHM_MARKER);
pa_assert_se(pa_close(fd) == 0);
m->do_unlink = true;
#else
goto fail;
#endif
}
m->shared = shared;
return 0;
fail:
#ifdef HAVE_SHM_OPEN
if (fd >= 0) {
shm_unlink(fn);
pa_close(fd);
}
#endif
return -1;
}
void pa_simple_protocol_connect(pa_simple_protocol *p, pa_iochannel *io, pa_simple_options *o) {
connection *c = NULL;
char pname[128];
pa_client_new_data client_data;
pa_assert(p);
pa_assert(io);
pa_assert(o);
if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) {
pa_log("Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS);
pa_iochannel_free(io);
return;
}
c = pa_msgobject_new(connection);
c->parent.parent.free = connection_free;
c->parent.process_msg = connection_process_msg;
c->io = io;
pa_iochannel_set_callback(c->io, io_callback, c);
c->sink_input = NULL;
c->source_output = NULL;
c->input_memblockq = c->output_memblockq = NULL;
c->protocol = p;
c->options = pa_simple_options_ref(o);
c->playback.current_memblock = NULL;
c->playback.memblock_index = 0;
c->dead = false;
c->playback.underrun = true;
pa_atomic_store(&c->playback.missing, 0);
pa_client_new_data_init(&client_data);
client_data.module = o->module;
client_data.driver = __FILE__;
pa_iochannel_socket_peer_to_string(io, pname, sizeof(pname));
pa_proplist_setf(client_data.proplist, PA_PROP_APPLICATION_NAME, "Simple client (%s)", pname);
pa_proplist_sets(client_data.proplist, "simple-protocol.peer", pname);
c->client = pa_client_new(p->core, &client_data);
pa_client_new_data_done(&client_data);
if (!c->client)
goto fail;
c->client->kill = client_kill_cb;
c->client->userdata = c;
if (o->playback) {
pa_sink_input_new_data data;
pa_memchunk silence;
size_t l;
pa_sink *sink;
if (!(sink = pa_namereg_get(c->protocol->core, o->default_sink, PA_NAMEREG_SINK))) {
pa_log("Failed to get sink.");
goto fail;
}
pa_sink_input_new_data_init(&data);
data.driver = __FILE__;
data.module = o->module;
data.client = c->client;
pa_sink_input_new_data_set_sink(&data, sink, false);
pa_proplist_update(data.proplist, PA_UPDATE_MERGE, c->client->proplist);
pa_sink_input_new_data_set_sample_spec(&data, &o->sample_spec);
pa_sink_input_new(&c->sink_input, p->core, &data);
pa_sink_input_new_data_done(&data);
if (!c->sink_input) {
pa_log("Failed to create sink input.");
goto fail;
}
c->sink_input->parent.process_msg = sink_input_process_msg;
c->sink_input->pop = sink_input_pop_cb;
c->sink_input->process_rewind = sink_input_process_rewind_cb;
c->sink_input->update_max_rewind = sink_input_update_max_rewind_cb;
c->sink_input->kill = sink_input_kill_cb;
c->sink_input->userdata = c;
pa_sink_input_set_requested_latency(c->sink_input, DEFAULT_SINK_LATENCY);
l = (size_t) ((double) pa_bytes_per_second(&o->sample_spec)*PLAYBACK_BUFFER_SECONDS);
pa_sink_input_get_silence(c->sink_input, &silence);
c->input_memblockq = pa_memblockq_new(
"simple protocol connection input_memblockq",
0,
l,
l,
&o->sample_spec,
(size_t) -1,
l/PLAYBACK_BUFFER_FRAGMENTS,
0,
&silence);
pa_memblock_unref(silence.memblock);
pa_iochannel_socket_set_rcvbuf(io, l);
pa_atomic_store(&c->playback.missing, (int) pa_memblockq_pop_missing(c->input_memblockq));
pa_sink_input_put(c->sink_input);
}
if (o->record) {
pa_source_output_new_data data;
size_t l;
pa_source *source;
if (!(source = pa_namereg_get(c->protocol->core, o->default_source, PA_NAMEREG_SOURCE))) {
pa_log("Failed to get source.");
goto fail;
}
pa_source_output_new_data_init(&data);
data.driver = __FILE__;
data.module = o->module;
data.client = c->client;
pa_source_output_new_data_set_source(&data, source, false);
pa_proplist_update(data.proplist, PA_UPDATE_MERGE, c->client->proplist);
pa_source_output_new_data_set_sample_spec(&data, &o->sample_spec);
pa_source_output_new(&c->source_output, p->core, &data);
pa_source_output_new_data_done(&data);
if (!c->source_output) {
pa_log("Failed to create source output.");
goto fail;
}
c->source_output->push = source_output_push_cb;
c->source_output->kill = source_output_kill_cb;
c->source_output->get_latency = source_output_get_latency_cb;
c->source_output->userdata = c;
pa_source_output_set_requested_latency(c->source_output, DEFAULT_SOURCE_LATENCY);
l = (size_t) (pa_bytes_per_second(&o->sample_spec)*RECORD_BUFFER_SECONDS);
c->output_memblockq = pa_memblockq_new(
"simple protocol connection output_memblockq",
0,
l,
0,
&o->sample_spec,
1,
0,
0,
NULL);
pa_iochannel_socket_set_sndbuf(io, l);
pa_source_output_put(c->source_output);
}
pa_idxset_put(p->connections, c, NULL);
return;
fail:
connection_unlink(c);
}
int pa__init(pa_module*m) {
pa_modargs *ma = NULL;
struct userdata *u;
const char *master_sink_name;
const char *master_source_name;
const char *raw_sink_name;
const char *raw_source_name;
const char *voice_sink_name;
const char *voice_source_name;
const char *max_hw_frag_size_str;
int max_hw_frag_size = 3840;
pa_sink *master_sink;
pa_source *master_source;
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log("Failed to parse module arguments");
goto fail;
}
master_sink_name = pa_modargs_get_value(ma, "master_sink", NULL);
master_source_name = pa_modargs_get_value(ma, "master_source", NULL);
raw_sink_name = pa_modargs_get_value(ma, "raw_sink_name", "sink.voice.raw");
raw_source_name = pa_modargs_get_value(ma, "raw_source_name", "source.voice.raw");
voice_sink_name = pa_modargs_get_value(ma, "voice_sink_name", "sink.voice");
voice_source_name = pa_modargs_get_value(ma, "voice_source_name", "source.voice");
max_hw_frag_size_str = pa_modargs_get_value(ma, "max_hw_frag_size", "3840");
pa_log_debug("Got arguments: master_sink=\"%s\" master_source=\"%s\" "
"raw_sink_name=\"%s\" raw_source_name=\"%s\" max_hw_frag_size=\"%s\".",
master_sink_name, master_source_name,
raw_sink_name, raw_source_name,
max_hw_frag_size_str);
if (!(master_sink = pa_namereg_get(m->core, master_sink_name, PA_NAMEREG_SINK))) {
pa_log("Master sink \"%s\" not found", master_sink_name);
goto fail;
}
if (!(master_source = pa_namereg_get(m->core, master_source_name, PA_NAMEREG_SOURCE))) {
pa_log("Master source \"%s\" not found", master_source_name);
goto fail;
}
if (master_sink->sample_spec.format != master_source->sample_spec.format &&
master_sink->sample_spec.rate != master_source->sample_spec.rate &&
master_sink->sample_spec.channels != master_source->sample_spec.channels) {
pa_log("Master source and sink must have same sample spec");
goto fail;
}
if (pa_atoi(max_hw_frag_size_str, &max_hw_frag_size) < 0 ||
max_hw_frag_size < 960 ||
max_hw_frag_size > 128*960) {
pa_log("Bad value for max_hw_frag_size: %s", max_hw_frag_size_str);
goto fail;
}
m->userdata = u = pa_xnew0(struct userdata, 1);
u->modargs = ma;
u->core = m->core;
u->module = m;
u->master_sink = master_sink;
u->master_source = master_source;
set_hooks(u);
u->mainloop_handler = voice_mainloop_handler_new(u);
u->ul_timing_advance = 500; // = 500 micro seconds, seems to be a good default value
pa_channel_map_init_mono(&u->mono_map);
pa_channel_map_init_stereo(&u->stereo_map);
u->hw_sample_spec.format = PA_SAMPLE_S16NE;
u->hw_sample_spec.rate = VOICE_SAMPLE_RATE_HW_HZ;
u->hw_sample_spec.channels = 2;
u->hw_mono_sample_spec.format = PA_SAMPLE_S16NE;
u->hw_mono_sample_spec.rate = VOICE_SAMPLE_RATE_HW_HZ;
u->hw_mono_sample_spec.channels = 1;
u->aep_sample_spec.format = PA_SAMPLE_S16NE;
u->aep_sample_spec.rate = VOICE_SAMPLE_RATE_AEP_HZ;
u->aep_sample_spec.channels = 1;
pa_channel_map_init_mono(&u->aep_channel_map);
// The result is rounded down incorrectly thus +1
u->aep_fragment_size = pa_usec_to_bytes(VOICE_PERIOD_AEP_USECS+1, &u->aep_sample_spec);
u->aep_hw_fragment_size = pa_usec_to_bytes(VOICE_PERIOD_AEP_USECS+1, &u->hw_sample_spec);
u->hw_fragment_size = pa_usec_to_bytes(VOICE_PERIOD_MASTER_USECS+1, &u->hw_sample_spec);
u->hw_fragment_size_max = max_hw_frag_size;
if (0 != (u->hw_fragment_size_max % u->hw_fragment_size))
u->hw_fragment_size_max += u->hw_fragment_size - (u->hw_fragment_size_max % u->hw_fragment_size);
u->aep_hw_mono_fragment_size = pa_usec_to_bytes(VOICE_PERIOD_AEP_USECS+1, &u->hw_mono_sample_spec);
u->hw_mono_fragment_size = pa_usec_to_bytes(VOICE_PERIOD_MASTER_USECS+1, &u->hw_mono_sample_spec);
u->voice_ul_fragment_size = pa_usec_to_bytes(VOICE_PERIOD_CMT_USECS+1, &u->aep_sample_spec);
pa_silence_memchunk_get(&u->core->silence_cache,
u->core->mempool,
&u->aep_silence_memchunk,
& u->aep_sample_spec,
u->aep_fragment_size);
voice_memchunk_pool_load(u);
if (voice_init_raw_sink(u, raw_sink_name))
goto fail;
u->call_state_tracker = pa_call_state_tracker_get(m->core);
pa_atomic_store(&u->mixer_state, PROP_MIXER_TUNING_PRI);
pa_call_state_tracker_set_active(u->call_state_tracker, FALSE);
u->alt_mixer_compensation = PA_VOLUME_NORM;
if (voice_init_hw_sink_input(u))
goto fail;
/* This must be set before calling pa_sink_put(), because pa_sink_put() has
* assertion
* "!(s->flags & PA_SINK_SHARE_VOLUME_WITH_MASTER) || s->flat_sink_input".
*/
u->raw_sink->flat_sink_input = u->hw_sink_input;
/* This must be called before calling voice_init_voip_sink(), because
* pa_sink_input_new() has assertion
* "PA_SINK_IS_LINKED(pa_sink_get_state(data->sink))". */
pa_sink_put(u->raw_sink);
/* This must be called before calling voice_init_aep_sink_input(), because
* the flat volume logic will otherwise mess up the aep sink input's volume
* when pa_sink_input_put(u->hw_sink_input) is called. */
pa_sink_input_put(u->hw_sink_input);
if (voice_init_voip_sink(u, voice_sink_name))
goto fail;
if (voice_init_aep_sink_input(u))
goto fail;
u->sink_temp_buff = pa_xmalloc(2*u->hw_fragment_size_max);
u->sink_temp_buff_len = 2*u->hw_fragment_size_max;
if (voice_init_raw_source(u, raw_source_name))
goto fail;
pa_source_put(u->raw_source);
if (voice_init_voip_source(u, voice_source_name))
goto fail;
pa_source_put(u->voip_source);
if (voice_init_hw_source_output(u))
goto fail;
/* TODO: Guess we should use max_hw_frag_size here */
u->hw_source_memblockq = // 8 * 5ms = 40ms
pa_memblockq_new(0, 2*u->hw_fragment_size_max, 0, pa_frame_size(&u->hw_sample_spec), 0, 0, 0, NULL);
u->ul_memblockq =
pa_memblockq_new(0, 2*u->voice_ul_fragment_size, 0, pa_frame_size(&u->aep_sample_spec), 0, 0, 0, NULL);
u->dl_sideinfo_queue = pa_queue_new();
u->ul_deadline = 0;
u->linear_q15_master_volume_L = INT16_MAX;
u->linear_q15_master_volume_R = INT16_MAX;
voice_aep_ear_ref_init(u);
if (voice_convert_init(u))
goto fail;
/* IHF mode is the default and this initialization is consistent with it. */
u->active_mic_channel = MIC_CH0;
meego_parameter_request_updates("voice", (pa_hook_cb_t)voice_parameter_cb, PA_HOOK_NORMAL, FALSE, u);
meego_parameter_request_updates("alsa", (pa_hook_cb_t)alsa_parameter_cb, PA_HOOK_NORMAL, FALSE, u);
meego_parameter_request_updates("aep", (pa_hook_cb_t)aep_parameter_cb, PA_HOOK_LATE, FALSE, u);
/* aep-s-i */
/* voip-sink ---\ hw-sink-input */
/* > optimized mix -------------> master-sink */
/* | */
/* raw-sink */
/* */
/* voip-src <--- hw-source-output */
/* < mux <------------- master-src */
/* raw-src <--- */
u->voip_sink->flat_sink_input = u->aep_sink_input;
pa_sink_put(u->voip_sink);
pa_source_output_put(u->hw_source_output);
pa_sink_input_put(u->aep_sink_input);
u->sink_subscription = pa_subscription_new(m->core, PA_SUBSCRIPTION_MASK_SINK | PA_SUBSCRIPTION_MASK_SINK_INPUT, master_sink_volume_subscribe_cb, u);
u->previous_master_source_state = pa_source_get_state(u->master_source);
u->source_change_subscription = pa_subscription_new(m->core, PA_SUBSCRIPTION_MASK_SOURCE, master_source_state_subscribe_cb, u);
return 0;
fail:
pa__done(m);
return -1;
}