diff options
Diffstat (limited to 'spa/plugins/bluez5/sco-sink.c')
| -rw-r--r-- | spa/plugins/bluez5/sco-sink.c | 1186 |
1 files changed, 1186 insertions, 0 deletions
diff --git a/spa/plugins/bluez5/sco-sink.c b/spa/plugins/bluez5/sco-sink.c new file mode 100644 index 00000000..b91ec5be --- /dev/null +++ b/spa/plugins/bluez5/sco-sink.c @@ -0,0 +1,1186 @@ +/* Spa SCO Sink + * + * Copyright © 2019 Collabora Ltd. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#include <unistd.h> +#include <stddef.h> +#include <stdio.h> +#include <arpa/inet.h> +#include <sys/ioctl.h> + +#include <spa/support/loop.h> +#include <spa/support/log.h> +#include <spa/support/system.h> +#include <spa/utils/list.h> +#include <spa/utils/keys.h> +#include <spa/utils/names.h> +#include <spa/monitor/device.h> + +#include <spa/node/node.h> +#include <spa/node/utils.h> +#include <spa/node/io.h> +#include <spa/param/param.h> +#include <spa/param/audio/format.h> +#include <spa/param/audio/format-utils.h> +#include <spa/pod/filter.h> + +#include "defs.h" + +struct props { + uint32_t min_latency; + uint32_t max_latency; +}; + +#define MAX_BUFFERS 32 + +struct buffer { + uint32_t id; + unsigned int outstanding:1; + struct spa_buffer *buf; + struct spa_meta_header *h; + struct spa_list link; +}; + +struct port { + struct spa_audio_info current_format; + int frame_size; + unsigned int have_format:1; + + uint64_t info_all; + struct spa_port_info info; + struct spa_io_buffers *io; + struct spa_param_info params[8]; + + struct buffer buffers[MAX_BUFFERS]; + uint32_t n_buffers; + + struct spa_list free; + struct spa_list ready; + + unsigned int need_data:1; +}; + +struct impl { + struct spa_handle handle; + struct spa_node node; + + /* Support */ + struct spa_log *log; + struct spa_loop *data_loop; + struct spa_system *data_system; + + /* Hooks and callbacks */ + struct spa_hook_list hooks; + struct spa_callbacks callbacks; + + /* Info */ + uint64_t info_all; + struct spa_node_info info; + struct spa_param_info params[8]; + struct props props; + + /* Transport */ + struct spa_bt_transport *transport; + struct spa_hook transport_listener; + int sock_fd; + + /* Port */ + struct port port; + + /* Flags */ + unsigned int started:1; + unsigned int slaved:1; + + /* Sources */ + struct spa_source source; + struct spa_source flush_source; + + /* Timer */ + int timerfd; + struct timespec now; + struct spa_io_clock *clock; + struct spa_io_position *position; + int threshold; + + /* Times */ + uint64_t start_time; + + /* Counts */ + uint64_t sample_count; +}; + +#define NAME "sco-sink" + +#define CHECK_PORT(this,d,p) ((d) == SPA_DIRECTION_INPUT && (p) == 0) + +static const uint32_t default_min_latency = 128; +static const uint32_t default_max_latency = 1024; + +static void reset_props(struct props *props) +{ + props->min_latency = default_min_latency; + props->max_latency = default_max_latency; +} + +static int impl_node_enum_params(void *object, int seq, + uint32_t id, uint32_t start, uint32_t num, + const struct spa_pod *filter) +{ + struct impl *this = object; + struct spa_pod *param; + struct spa_pod_builder b = { 0 }; + uint8_t buffer[1024]; + struct spa_result_node_params result; + uint32_t count = 0; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(num != 0, -EINVAL); + + result.id = id; + result.next = start; + next: + result.index = result.next++; + + spa_pod_builder_init(&b, buffer, sizeof(buffer)); + + switch (id) { + case SPA_PARAM_PropInfo: + { + struct props *p = &this->props; + + switch (result.index) { + case 0: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_PropInfo, id, + SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_minLatency), + SPA_PROP_INFO_name, SPA_POD_String("The minimum latency"), + SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Int(p->min_latency, 1, INT32_MAX)); + break; + case 1: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_PropInfo, id, + SPA_PROP_INFO_id, SPA_POD_Id(SPA_PROP_maxLatency), + SPA_PROP_INFO_name, SPA_POD_String("The maximum latency"), + SPA_PROP_INFO_type, SPA_POD_CHOICE_RANGE_Int(p->max_latency, 1, INT32_MAX)); + break; + default: + return 0; + } + break; + } + case SPA_PARAM_Props: + { + struct props *p = &this->props; + + switch (result.index) { + case 0: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_Props, id, + SPA_PROP_minLatency, SPA_POD_Int(p->min_latency), + SPA_PROP_maxLatency, SPA_POD_Int(p->max_latency)); + break; + default: + return 0; + } + break; + } + default: + return -ENOENT; + } + + if (spa_pod_filter(&b, &result.param, param, filter) < 0) + goto next; + + spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result); + + if (++count != num) + goto next; + + return 0; +} + +static void set_timeout(struct impl *this, time_t sec, long nsec) +{ + struct itimerspec ts; + + ts.it_value.tv_sec = sec; + ts.it_value.tv_nsec = nsec; + ts.it_interval.tv_sec = 0; + ts.it_interval.tv_nsec = 0; + + timerfd_settime(this->timerfd, TFD_TIMER_ABSTIME, &ts, NULL); + this->source.mask = SPA_IO_IN; + spa_loop_update_source(this->data_loop, &this->source); +} + +static void reset_timeout(struct impl *this) +{ + set_timeout(this, 0, this->slaved ? 0 : 1); +} + + +static void set_next_timeout(struct impl *this, uint64_t now_time) +{ + struct port *port = &this->port; + + /* Set the next timeout if not slaved, otherwise reset values */ + if (!this->slaved) { + /* Get the elapsed time */ + const uint64_t elapsed_time = now_time - this->start_time; + + /* Get the elapsed samples */ + const uint64_t elapsed_samples = elapsed_time * port->current_format.info.raw.rate / SPA_NSEC_PER_SEC; + + /* Get the queued samples (processed - elapsed) */ + const uint64_t queued_samples = this->sample_count - elapsed_samples; + + /* Get the queued time */ + const uint64_t queued_time = (queued_samples * SPA_NSEC_PER_SEC) / port->current_format.info.raw.rate; + + /* Get the next time */ + const uint64_t next_time = now_time + queued_time; + + /* Set the next timeout */ + set_timeout (this, next_time / SPA_NSEC_PER_SEC, next_time % SPA_NSEC_PER_SEC); + } else { + this->start_time = now_time; + this->sample_count = 0; + } +} + +static int do_reslave(struct spa_loop *loop, + bool async, + uint32_t seq, + const void *data, + size_t size, + void *user_data) +{ + struct impl *this = user_data; + reset_timeout(this); + return 0; +} + +static inline bool is_slaved(struct impl *this) +{ + return this->position && this->clock && this->position->clock.id != this->clock->id; +} + +static int impl_node_set_io(void *object, uint32_t id, void *data, size_t size) +{ + struct impl *this = object; + bool slaved; + + spa_return_val_if_fail(object != NULL, -EINVAL); + + switch (id) { + case SPA_IO_Clock: + this->clock = data; + break; + case SPA_IO_Position: + this->position = data; + break; + default: + return -ENOENT; + } + + slaved = is_slaved(this); + if (this->started && slaved != this->slaved) { + spa_log_debug(this->log, "sco-sink %p: reslave %d->%d", this, this->slaved, slaved); + this->slaved = slaved; + spa_loop_invoke(this->data_loop, do_reslave, 0, NULL, 0, true, this); + } + return 0; +} + +static int impl_node_set_param(void *object, uint32_t id, uint32_t flags, + const struct spa_pod *param) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + switch (id) { + case SPA_PARAM_Props: + { + struct props *p = &this->props; + + if (param == NULL) { + reset_props(p); + return 0; + } + spa_pod_parse_object(param, + SPA_TYPE_OBJECT_Props, NULL, + SPA_PROP_minLatency, SPA_POD_OPT_Int(&p->min_latency), + SPA_PROP_maxLatency, SPA_POD_OPT_Int(&p->max_latency)); + break; + } + default: + return -ENOENT; + } + + return 0; +} + +static bool write_data(struct impl *this, uint8_t *data, uint32_t size, uint32_t *total_written) +{ + uint32_t local_total_written = 0; + const uint32_t mtu_size = this->transport->write_mtu; + + /* TODO: For now we assume the size is always a mutliple of mtu_size */ + while (local_total_written < (size - mtu_size)) { + const int bytes_written = write(this->sock_fd, data, mtu_size); + if (bytes_written < 0) { + spa_log_warn(this->log, "error writting data: %s", strerror(errno)); + return false; + } + + data += bytes_written; + local_total_written += bytes_written; + } + + if (total_written) + *total_written = local_total_written; + return true; +} + +static int render_buffers(struct impl *this, uint64_t now_time) +{ + struct port *port = &this->port; + + /* Render the buffer */ + while (!spa_list_is_empty(&port->ready)) { + uint8_t *src; + struct buffer *b; + struct spa_data *d; + uint32_t offset, size; + uint32_t total_written = 0; + + /* Get the buffer and datas */ + b = spa_list_first(&port->ready, struct buffer, link); + d = b->buf->datas; + + /* Get the data, offset and size */ + src = d[0].data; + offset = d[0].chunk->offset; + size = d[0].chunk->size; + + /* Write data */ + write_data(this, src + offset, size, &total_written); + + /* Update the cample count */ + this->sample_count += total_written / port->frame_size; + + /* Remove the buffer and mark it as reusable */ + spa_list_remove(&b->link); + b->outstanding = true; + spa_node_call_reuse_buffer(&this->callbacks, 0, b->id); + } + + /* Set next timeout */ + set_next_timeout(this, now_time); + + return 0; +} + +static void sco_on_flush(struct spa_source *source) +{ + struct impl *this = source->data; + uint64_t now_time; + + spa_log_trace(this->log, NAME" %p: flushing", this); + + if ((source->rmask & SPA_IO_OUT) == 0) { + spa_log_warn(this->log, "error %d", source->rmask); + if (this->flush_source.loop) + spa_loop_remove_source(this->data_loop, &this->flush_source); + this->source.mask = 0; + spa_loop_update_source(this->data_loop, &this->source); + return; + } + + /* Get the current time */ + spa_system_clock_gettime(this->data_system, CLOCK_MONOTONIC, &this->now); + now_time = SPA_TIMESPEC_TO_NSEC(&this->now); + + /* Render buffers */ + render_buffers(this, now_time); +} + +static void sco_on_timeout(struct spa_source *source) +{ + struct impl *this = source->data; + struct port *port = &this->port; + uint64_t exp, now_time; + struct spa_io_buffers *io = port->io; + + /* Read the timerfd */ + if (this->started && read(this->timerfd, &exp, sizeof(uint64_t)) != sizeof(uint64_t)) + spa_log_warn(this->log, "error reading timerfd: %s", strerror(errno)); + + /* Get the current time */ + spa_system_clock_gettime(this->data_system, CLOCK_MONOTONIC, &this->now); + now_time = SPA_TIMESPEC_TO_NSEC(&this->now); + + /* Set the start time to the current time */ + if (this->start_time == 0) + this->start_time = now_time; + + /* Notify we need a new buffer if we have processed all of them */ + if (spa_list_is_empty(&port->ready) || port->need_data) { + io->status = SPA_STATUS_NEED_BUFFER; + spa_node_call_ready(&this->callbacks, SPA_STATUS_NEED_BUFFER); + } + + /* Render the buffers */ + render_buffers(this, now_time); +} + +static int do_start(struct impl *this) +{ + int val; + bool do_accept; + + /* Dont do anything if the node has already started */ + if (this->started) + return 0; + + /* Make sure the transport is valid */ + spa_return_val_if_fail (this->transport != NULL, -EIO); + + /* Set the slaved flag */ + this->slaved = is_slaved(this); + + /* Do accept if Gateway; otherwise do connect for Head Unit */ + do_accept = this->transport->profile & SPA_BT_PROFILE_HEADSET_AUDIO_GATEWAY; + + /* acquire the socked fd (false -> connect | true -> accept) */ + this->sock_fd = spa_bt_transport_acquire(this->transport, do_accept); + if (this->sock_fd < 0) + return -1; + + /* Set the write MTU */ + val = this->transport->write_mtu; + if (setsockopt(this->sock_fd, SOL_SOCKET, SO_SNDBUF, &val, sizeof(val)) < 0) + spa_log_warn(this->log, "sco-sink %p: SO_SNDBUF %m", this); + + /* Set the read MTU */ + val = this->transport->read_mtu; + if (setsockopt(this->sock_fd, SOL_SOCKET, SO_RCVBUF, &val, sizeof(val)) < 0) + spa_log_warn(this->log, "sco-sink %p: SO_RCVBUF %m", this); + + /* Set the priority */ + val = 6; + if (setsockopt(this->sock_fd, SOL_SOCKET, SO_PRIORITY, &val, sizeof(val)) < 0) + spa_log_warn(this->log, "SO_PRIORITY failed: %m"); + + /* Add the timeout callback */ + this->source.data = this; + this->source.fd = this->timerfd; + this->source.func = sco_on_timeout; + this->source.mask = SPA_IO_IN; + this->source.rmask = 0; + spa_loop_add_source(this->data_loop, &this->source); + + /* Add the flush callback */ + this->flush_source.data = this; + this->flush_source.fd = this->sock_fd; + this->flush_source.func = sco_on_flush; + this->flush_source.mask = 0; + this->flush_source.rmask = 0; + spa_loop_add_source(this->data_loop, &this->flush_source); + + /* Reset timeout to start processing */ + reset_timeout(this); + + /* Set the started flag */ + this->started = true; + + return 0; +} + +static int do_remove_source(struct spa_loop *loop, + bool async, + uint32_t seq, + const void *data, + size_t size, + void *user_data) +{ + struct impl *this = user_data; + struct itimerspec ts; + + if (this->source.loop) + spa_loop_remove_source(this->data_loop, &this->source); + ts.it_value.tv_sec = 0; + ts.it_value.tv_nsec = 0; + ts.it_interval.tv_sec = 0; + ts.it_interval.tv_nsec = 0; + timerfd_settime(this->timerfd, 0, &ts, NULL); + if (this->flush_source.loop) + spa_loop_remove_source(this->data_loop, &this->flush_source); + + return 0; +} + +static int do_stop(struct impl *this) +{ + int res = 0; + + if (!this->started) + return 0; + + spa_log_trace(this->log, "sco-sink %p: stop", this); + + spa_loop_invoke(this->data_loop, do_remove_source, 0, NULL, 0, true, this); + + this->started = false; + + if (this->transport) { + /* Release the transport */ + res = spa_bt_transport_release(this->transport); + + /* Shutdown and close the socket */ + shutdown(this->sock_fd, SHUT_RDWR); + close(this->sock_fd); + this->sock_fd = -1; + } + + return res; +} + +static int impl_node_send_command(void *object, const struct spa_command *command) +{ + struct impl *this = object; + struct port *port; + int res; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(command != NULL, -EINVAL); + + port = &this->port; + + switch (SPA_NODE_COMMAND_ID(command)) { + case SPA_NODE_COMMAND_Start: + if (!port->have_format) + return -EIO; + if (port->n_buffers == 0) + return -EIO; + if ((res = do_start(this)) < 0) + return res; + break; + case SPA_NODE_COMMAND_Pause: + if ((res = do_stop(this)) < 0) + return res; + break; + default: + return -ENOTSUP; + } + return 0; +} + +static const struct spa_dict_item node_info_items[] = { + { SPA_KEY_DEVICE_API, "bluez5" }, + { SPA_KEY_MEDIA_CLASS, "Audio/Sink" }, + { SPA_KEY_NODE_DRIVER, "true" }, +}; + +static void emit_node_info(struct impl *this, bool full) +{ + if (full) + this->info.change_mask = this->info_all; + if (this->info.change_mask) { + this->info.props = &SPA_DICT_INIT_ARRAY(node_info_items); + spa_node_emit_info(&this->hooks, &this->info); + this->info.change_mask = 0; + } +} + +static void emit_port_info(struct impl *this, struct port *port, bool full) +{ + if (full) + port->info.change_mask = port->info_all; + if (port->info.change_mask) { + spa_node_emit_port_info(&this->hooks, + SPA_DIRECTION_INPUT, 0, &port->info); + port->info.change_mask = 0; + } +} + +static int +impl_node_add_listener(void *object, + struct spa_hook *listener, + const struct spa_node_events *events, + void *data) +{ + struct impl *this = object; + struct spa_hook_list save; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + spa_hook_list_isolate(&this->hooks, &save, listener, events, data); + + emit_node_info(this, true); + emit_port_info(this, &this->port, true); + + spa_hook_list_join(&this->hooks, &save); + + return 0; +} + +static int +impl_node_set_callbacks(void *object, + const struct spa_node_callbacks *callbacks, + void *data) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + this->callbacks = SPA_CALLBACKS_INIT(callbacks, data); + + return 0; +} + +static int impl_node_sync(void *object, int seq) +{ + struct impl *this = object; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + spa_node_emit_result(&this->hooks, seq, 0, 0, NULL); + + return 0; +} + +static int impl_node_add_port(void *object, enum spa_direction direction, uint32_t port_id, + const struct spa_dict *props) +{ + return -ENOTSUP; +} + +static int impl_node_remove_port(void *object, enum spa_direction direction, uint32_t port_id) +{ + return -ENOTSUP; +} + +static int +impl_node_port_enum_params(void *object, int seq, + enum spa_direction direction, uint32_t port_id, + uint32_t id, uint32_t start, uint32_t num, + const struct spa_pod *filter) +{ + + struct impl *this = object; + struct port *port; + struct spa_pod *param; + struct spa_pod_builder b = { 0 }; + uint8_t buffer[1024]; + struct spa_result_node_params result; + uint32_t count = 0; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(num != 0, -EINVAL); + + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + port = &this->port; + + result.id = id; + result.next = start; + next: + result.index = result.next++; + + spa_pod_builder_init(&b, buffer, sizeof(buffer)); + + switch (id) { + case SPA_PARAM_EnumFormat: + if (result.index > 0) + return 0; + + /* set the info structure */ + struct spa_audio_info_raw info = { 0, }; + info.format = SPA_AUDIO_FORMAT_S16; + info.channels = 1; + info.position[0] = SPA_AUDIO_CHANNEL_MONO; + + /* TODO: For now we only handle HSP profiles which has always CVSD format, + * but we eventually need to support HFP that can have both CVSD and MSBC formats */ + + /* CVSD format has a rate of 8kHz + * MSBC format has a rate of 16kHz */ + info.rate = 8000; + + /* build the param */ + param = spa_format_audio_raw_build(&b, id, &info); + + break; + + case SPA_PARAM_Format: + if (!port->have_format) + return -EIO; + if (result.index > 0) + return 0; + + param = spa_format_audio_raw_build(&b, id, &port->current_format.info.raw); + break; + + case SPA_PARAM_Buffers: + if (!port->have_format) + return -EIO; + if (result.index > 0) + return 0; + + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamBuffers, id, + SPA_PARAM_BUFFERS_buffers, SPA_POD_CHOICE_RANGE_Int(2, 2, MAX_BUFFERS), + SPA_PARAM_BUFFERS_blocks, SPA_POD_Int(1), + SPA_PARAM_BUFFERS_size, SPA_POD_CHOICE_RANGE_Int( + this->props.min_latency * port->frame_size, + this->props.min_latency * port->frame_size, + INT32_MAX), + SPA_PARAM_BUFFERS_stride, SPA_POD_Int(port->frame_size), + SPA_PARAM_BUFFERS_align, SPA_POD_Int(16)); + break; + + case SPA_PARAM_Meta: + switch (result.index) { + case 0: + param = spa_pod_builder_add_object(&b, + SPA_TYPE_OBJECT_ParamMeta, id, + SPA_PARAM_META_type, SPA_POD_Id(SPA_META_Header), + SPA_PARAM_META_size, SPA_POD_Int(sizeof(struct spa_meta_header))); + break; + default: + return 0; + } + break; + + default: + return -ENOENT; + } + + if (spa_pod_filter(&b, &result.param, param, filter) < 0) + goto next; + + spa_node_emit_result(&this->hooks, seq, 0, SPA_RESULT_TYPE_NODE_PARAMS, &result); + + if (++count != num) + goto next; + + return 0; +} + +static int clear_buffers(struct impl *this, struct port *port) +{ + do_stop(this); + if (port->n_buffers > 0) { + spa_list_init(&port->ready); + port->n_buffers = 0; + } + return 0; +} + +static int port_set_format(struct impl *this, struct port *port, + uint32_t flags, + const struct spa_pod *format) +{ + int err; + + if (format == NULL) { + spa_log_info(this->log, "clear format"); + clear_buffers(this, port); + port->have_format = false; + } else { + struct spa_audio_info info = { 0 }; + + if ((err = spa_format_parse(format, &info.media_type, &info.media_subtype)) < 0) + return err; + + if (info.media_type != SPA_MEDIA_TYPE_audio || + info.media_subtype != SPA_MEDIA_SUBTYPE_raw) + return -EINVAL; + + if (spa_format_audio_raw_parse(format, &info.info.raw) < 0) + return -EINVAL; + + port->frame_size = info.info.raw.channels * 2; + port->current_format = info; + port->have_format = true; + this->threshold = this->props.min_latency; + } + + port->info.change_mask |= SPA_PORT_CHANGE_MASK_PARAMS; + if (port->have_format) { + port->info.change_mask |= SPA_PORT_CHANGE_MASK_FLAGS; + port->info.flags = SPA_PORT_FLAG_LIVE; + port->info.change_mask |= SPA_PORT_CHANGE_MASK_RATE; + port->info.rate = SPA_FRACTION(1, port->current_format.info.raw.rate); + port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_READWRITE); + port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, SPA_PARAM_INFO_READ); + } else { + port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE); + port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0); + } + emit_port_info(this, port, false); + + return 0; +} + +static int +impl_node_port_set_param(void *object, + enum spa_direction direction, uint32_t port_id, + uint32_t id, uint32_t flags, + const struct spa_pod *param) +{ + struct impl *this = object; + struct port *port; + int res; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(node, direction, port_id), -EINVAL); + port = &this->port; + + switch (id) { + case SPA_PARAM_Format: + res = port_set_format(this, port, flags, param); + break; + default: + res = -ENOENT; + break; + } + return res; +} + +static int +impl_node_port_use_buffers(void *object, + enum spa_direction direction, uint32_t port_id, + uint32_t flags, + struct spa_buffer **buffers, uint32_t n_buffers) +{ + struct impl *this = object; + struct port *port; + uint32_t i; + + spa_return_val_if_fail(this != NULL, -EINVAL); + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + port = &this->port; + + spa_log_info(this->log, "use buffers %d", n_buffers); + + if (!port->have_format) + return -EIO; + + clear_buffers(this, port); + + for (i = 0; i < n_buffers; i++) { + struct buffer *b = &port->buffers[i]; + uint32_t type; + + b->buf = buffers[i]; + b->id = i; + b->outstanding = true; + + b->h = spa_buffer_find_meta_data(buffers[i], SPA_META_Header, sizeof(*b->h)); + + type = buffers[i]->datas[0].type; + if ((type == SPA_DATA_MemFd || + type == SPA_DATA_DmaBuf || + type == SPA_DATA_MemPtr) && buffers[i]->datas[0].data == NULL) { + spa_log_error(this->log, NAME " %p: need mapped memory", this); + return -EINVAL; + } + this->threshold = buffers[i]->datas[0].maxsize / port->frame_size; + } + port->n_buffers = n_buffers; + + return 0; +} + +static int +impl_node_port_set_io(void *object, + enum spa_direction direction, + uint32_t port_id, + uint32_t id, + void *data, size_t size) +{ + struct impl *this = object; + struct port *port; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + spa_return_val_if_fail(CHECK_PORT(this, direction, port_id), -EINVAL); + port = &this->port; + + switch (id) { + case SPA_IO_Buffers: + port->io = data; + break; + default: + return -ENOENT; + } + return 0; +} + +static int impl_node_port_reuse_buffer(void *object, uint32_t port_id, uint32_t buffer_id) +{ + return -ENOTSUP; +} + +static int impl_node_process(void *object) +{ + struct impl *this = object; + struct port *port; + struct spa_io_buffers *io; + uint64_t now_time; + + spa_return_val_if_fail(this != NULL, -EINVAL); + + this = SPA_CONTAINER_OF(this, struct impl, node); + port = &this->port; + io = port->io; + spa_return_val_if_fail(io != NULL, -EIO); + + spa_system_clock_gettime(this->data_system, CLOCK_MONOTONIC, &this->now); + now_time = SPA_TIMESPEC_TO_NSEC(&this->now); + + if (!spa_list_is_empty(&port->ready)) + render_buffers(this, now_time); + + if (io->status == SPA_STATUS_HAVE_BUFFER && io->buffer_id < port->n_buffers) { + struct buffer *b = &port->buffers[io->buffer_id]; + + if (!b->outstanding) { + spa_log_warn(this->log, NAME " %p: buffer %u in use", this, io->buffer_id); + io->status = -EINVAL; + return -EINVAL; + } + + spa_log_trace(this->log, NAME " %p: queue buffer %u", this, io->buffer_id); + + spa_list_append(&port->ready, &b->link); + b->outstanding = false; + port->need_data = false; + + this->threshold = SPA_MIN(b->buf->datas[0].chunk->size / port->frame_size, + this->props.max_latency); + + render_buffers(this, now_time); + + io->status = SPA_STATUS_OK; + } + + return SPA_STATUS_HAVE_BUFFER; +} + +static const struct spa_node_methods impl_node = { + SPA_VERSION_NODE_METHODS, + .add_listener = impl_node_add_listener, + .set_callbacks = impl_node_set_callbacks, + .sync = impl_node_sync, + .enum_params = impl_node_enum_params, + .set_param = impl_node_set_param, + .set_io = impl_node_set_io, + .send_command = impl_node_send_command, + .add_port = impl_node_add_port, + .remove_port = impl_node_remove_port, + .port_enum_params = impl_node_port_enum_params, + .port_set_param = impl_node_port_set_param, + .port_use_buffers = impl_node_port_use_buffers, + .port_set_io = impl_node_port_set_io, + .port_reuse_buffer = impl_node_port_reuse_buffer, + .process = impl_node_process, +}; + +static void transport_destroy(void *data) +{ + struct impl *this = data; + spa_log_debug(this->log, "transport %p destroy", this->transport); + this->transport = NULL; +} + +static const struct spa_bt_transport_events transport_events = { + SPA_VERSION_BT_TRANSPORT_EVENTS, + .destroy = transport_destroy, +}; + +static int impl_get_interface(struct spa_handle *handle, uint32_t type, void **interface) +{ + struct impl *this; + + spa_return_val_if_fail(handle != NULL, -EINVAL); + spa_return_val_if_fail(interface != NULL, -EINVAL); + + this = (struct impl *) handle; + + if (type == SPA_TYPE_INTERFACE_Node) + *interface = &this->node; + else + return -ENOENT; + + return 0; +} + +static int impl_clear(struct spa_handle *handle) +{ + struct impl *this = (struct impl *) handle; + spa_system_close(this->data_system, this->timerfd); + return 0; +} + +static size_t +impl_get_size(const struct spa_handle_factory *factory, + const struct spa_dict *params) +{ + return sizeof(struct impl); +} + +static int +impl_init(const struct spa_handle_factory *factory, + struct spa_handle *handle, + const struct spa_dict *info, + const struct spa_support *support, + uint32_t n_support) +{ + struct impl *this; + struct port *port; + uint32_t i; + + spa_return_val_if_fail(factory != NULL, -EINVAL); + spa_return_val_if_fail(handle != NULL, -EINVAL); + + handle->get_interface = impl_get_interface; + handle->clear = impl_clear; + + this = (struct impl *) handle; + + for (i = 0; i < n_support; i++) { + switch (support[i].type) { + case SPA_TYPE_INTERFACE_Log: + this->log = support[i].data; + break; + case SPA_TYPE_INTERFACE_DataLoop: + this->data_loop = support[i].data; + break; + case SPA_TYPE_INTERFACE_DataSystem: + this->data_system = support[i].data; + break; + } + } + if (this->data_loop == NULL) { + spa_log_error(this->log, "a data loop is needed"); + return -EINVAL; + } + if (this->data_system == NULL) { + spa_log_error(this->log, "a data system is needed"); + return -EINVAL; + } + + this->node.iface = SPA_INTERFACE_INIT( + SPA_TYPE_INTERFACE_Node, + SPA_VERSION_NODE, + &impl_node, this); + spa_hook_list_init(&this->hooks); + + reset_props(&this->props); + + this->info_all = SPA_NODE_CHANGE_MASK_FLAGS | + SPA_NODE_CHANGE_MASK_PARAMS | + SPA_NODE_CHANGE_MASK_PROPS; + this->info = SPA_NODE_INFO_INIT(); + this->info.max_input_ports = 1; + this->info.max_output_ports = 0; + this->info.flags = SPA_NODE_FLAG_RT; + this->params[0] = SPA_PARAM_INFO(SPA_PARAM_PropInfo, SPA_PARAM_INFO_READ); + this->params[1] = SPA_PARAM_INFO(SPA_PARAM_Props, SPA_PARAM_INFO_READWRITE); + this->info.params = this->params; + this->info.n_params = 2; + + port = &this->port; + port->info_all = SPA_PORT_CHANGE_MASK_FLAGS | + SPA_PORT_CHANGE_MASK_PARAMS; + port->info = SPA_PORT_INFO_INIT(); + port->info.flags = 0; + port->params[0] = SPA_PARAM_INFO(SPA_PARAM_EnumFormat, SPA_PARAM_INFO_READ); + port->params[1] = SPA_PARAM_INFO(SPA_PARAM_Meta, SPA_PARAM_INFO_READ); + port->params[2] = SPA_PARAM_INFO(SPA_PARAM_IO, SPA_PARAM_INFO_READ); + port->params[3] = SPA_PARAM_INFO(SPA_PARAM_Format, SPA_PARAM_INFO_WRITE); + port->params[4] = SPA_PARAM_INFO(SPA_PARAM_Buffers, 0); + port->info.params = port->params; + port->info.n_params = 5; + spa_list_init(&port->ready); + + for (i = 0; info && i < info->n_items; i++) { + if (strcmp(info->items[i].key, SPA_KEY_API_BLUEZ5_TRANSPORT) == 0) + sscanf(info->items[i].value, "pointer:%p", &this->transport); + } + if (this->transport == NULL) { + spa_log_error(this->log, "a transport is needed"); + return -EINVAL; + } + spa_bt_transport_add_listener(this->transport, + &this->transport_listener, &transport_events, this); + this->sock_fd = -1; + + this->timerfd = spa_system_timerfd_create(this->data_system, + CLOCK_MONOTONIC, SPA_FD_CLOEXEC | SPA_FD_NONBLOCK); + + return 0; +} + +static const struct spa_interface_info impl_interfaces[] = { + {SPA_TYPE_INTERFACE_Node,}, +}; + +static int +impl_enum_interface_info(const struct spa_handle_factory *factory, + const struct spa_interface_info **info, uint32_t *index) +{ + spa_return_val_if_fail(factory != NULL, -EINVAL); + spa_return_val_if_fail(info != NULL, -EINVAL); + spa_return_val_if_fail(index != NULL, -EINVAL); + + switch (*index) { + case 0: + *info = &impl_interfaces[*index]; + break; + default: + return 0; + } + (*index)++; + return 1; +} + +static const struct spa_dict_item info_items[] = { + { SPA_KEY_FACTORY_AUTHOR, "Collabora Ltd. <contact@collabora.com>" }, + { SPA_KEY_FACTORY_DESCRIPTION, "Play bluetooth audio with hsp/hfp" }, + { SPA_KEY_FACTORY_USAGE, SPA_KEY_API_BLUEZ5_TRANSPORT"=<transport>" }, +}; + +static const struct spa_dict info = SPA_DICT_INIT_ARRAY(info_items); + +struct spa_handle_factory spa_sco_sink_factory = { + SPA_VERSION_HANDLE_FACTORY, + SPA_NAME_API_BLUEZ5_SCO_SINK, + &info, + impl_get_size, + impl_init, + impl_enum_interface_info, +}; |