along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
-
- 1. Connects to the BlueZ audio service via one BlueZ specific well known unix socket
- bluez/audio/ipc: bt_audio_service_open()
- 2. Configures a connection to the BT device
- 3. Gets a BT socket fd passed in via the unix socket
- bluez/audio/ipc: bt_audio_service_get_data_fd()
- 4. Hands this over to its RT thread.
- pa_thread_mq
***/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
+#include <string.h>
+
#include <pulse/xmalloc.h>
#include <pulsecore/module.h>
#include <pulsecore/modargs.h>
+#include <pulsecore/thread.h>
+#include <pulsecore/thread-mq.h>
+#include <pulsecore/rtpoll.h>
+#include <pulsecore/time-smoother.h>
+#include <pulsecore/rtclock.h>
#include "dbus-util.h"
#include "module-bt-device-symdef.h"
#include "bt-ipc.h"
+#include "bt-sbc.h"
+
+#define DEFAULT_SINK_NAME "bt_sink"
+#define BUFFER_SIZE 2048
+#define MAX_BITPOOL 64
+#define MIN_BITPOOL 2
PA_MODULE_AUTHOR("Joao Paulo Rechi Vita");
PA_MODULE_DESCRIPTION("Bluetooth audio sink and source");
PA_MODULE_VERSION(PACKAGE_VERSION);
PA_MODULE_LOAD_ONCE(FALSE);
PA_MODULE_USAGE(
+ "name=<name of the device> "
"addr=<address of the device> "
- "uuid=<the profile that this device will work on>");
+ "profile=<a2dp|hsp>");
+
+struct bt_a2dp {
+ sbc_capabilities_t sbc_capabilities;
+ sbc_t sbc; /* Codec data */
+ int sbc_initialized; /* Keep track if the encoder is initialized */
+ int codesize; /* SBC codesize */
+ int samples; /* Number of encoded samples */
+ uint8_t buffer[BUFFER_SIZE]; /* Codec transfer buffer */
+ int count; /* Codec transfer buffer counter */
+
+ int nsamples; /* Cumulative number of codec samples */
+ uint16_t seq_num; /* Cumulative packet sequence */
+ int frame_count; /* Current frames in buffer*/
+};
struct userdata {
pa_core *core;
pa_module *module;
pa_sink *sink;
+ pa_thread_mq thread_mq;
+ pa_rtpoll *rtpoll;
+ pa_rtpoll_item *rtpoll_item;
+ pa_thread *thread;
+
+ pa_sample_spec ss;
+ pa_smoother *smoother;
+
+ pa_memchunk memchunk;
+
+ const char *name;
const char *addr;
- const char *uuid;
+ const char *profile;
+ int rate;
+ int channels;
+
+ int audioservice_fd;
+ int stream_fd;
+ int transport;
+ int link_mtu;
+
+ struct bt_a2dp a2dp;
};
static const char* const valid_modargs[] = {
+ "name",
"addr",
- "uuid",
+ "profile",
+ "rate",
+ "channels",
NULL
};
-static int audioservice_send(int sk, const bt_audio_msg_header_t *msg) {
+static int bt_audioservice_send(int sk, const bt_audio_msg_header_t *msg) {
int e;
- pa_log("sending %s", bt_audio_strmsg(msg->msg_type)); /*debug*/
+ pa_log/*_debug*/("sending %s", bt_audio_strmsg(msg->msg_type));
if (send(sk, msg, BT_AUDIO_IPC_PACKET_SIZE, 0) > 0)
e = 0;
else {
return e;
}
-static int audioservice_recv(int sk, bt_audio_msg_header_t *inmsg) {
- int err;
+static int bt_audioservice_recv(int sk, bt_audio_msg_header_t *inmsg) {
+ int e;
const char *type;
pa_log/*_debug*/("trying to receive msg from audio service...");
type = bt_audio_strmsg(inmsg->msg_type);
if (type) {
pa_log/*_debug*/("Received %s", type);
- err = 0;
+ e = 0;
}
else {
- err = -EINVAL;
+ e = -EINVAL;
pa_log_error("Bogus message type %d received from audio service", inmsg->msg_type);
}
}
else {
- err = -errno;
+ e = -errno;
pa_log_error("Error receiving data from audio service: %s(%d)", strerror(errno), errno);
}
- return err;
+ return e;
}
-static int audioservice_expect(int sk, bt_audio_msg_header_t *rsp_hdr, int expected_type) {
- int err = audioservice_recv(sk, rsp_hdr);
- if (err == 0) {
+static int bt_audioservice_expect(int sk, bt_audio_msg_header_t *rsp_hdr, int expected_type) {
+ int e = bt_audioservice_recv(sk, rsp_hdr);
+ if (e == 0) {
if (rsp_hdr->msg_type != expected_type) {
- err = -EINVAL;
+ e = -EINVAL;
pa_log_error("Bogus message %s received while %s was expected", bt_audio_strmsg(rsp_hdr->msg_type),
bt_audio_strmsg(expected_type));
}
}
- return err;
+ return e;
+}
+
+static int bt_getcaps(struct userdata *u) {
+ int e;
+ char buf[BT_AUDIO_IPC_PACKET_SIZE];
+ bt_audio_rsp_msg_header_t *rsp_hdr = (void*) buf;
+ struct bt_getcapabilities_req *getcaps_req = (void*) buf;
+ struct bt_getcapabilities_rsp *getcaps_rsp = (void*) buf;
+
+ memset(getcaps_req, 0, BT_AUDIO_IPC_PACKET_SIZE);
+ getcaps_req->h.msg_type = BT_GETCAPABILITIES_REQ;
+ strncpy(getcaps_req->device, u->addr, 18);
+ if (strcasecmp(u->profile, "a2dp") == 0)
+ getcaps_req->transport = BT_CAPABILITIES_TRANSPORT_A2DP;
+ else if (strcasecmp(u->profile, "hsp") == 0)
+ getcaps_req->transport = BT_CAPABILITIES_TRANSPORT_SCO;
+ else {
+ pa_log_error("invalid profile argument: %s", u->profile);
+ return -1;
+ }
+ getcaps_req->flags = 0;
+ getcaps_req->flags |= BT_FLAG_AUTOCONNECT;
+
+ e = bt_audioservice_send(u->audioservice_fd, &getcaps_req->h);
+ if (e < 0) {
+ pa_log_error("failed to send GETCAPABILITIES_REQ");
+ return e;
+ }
+
+ e = bt_audioservice_expect(u->audioservice_fd, &rsp_hdr->msg_h, BT_GETCAPABILITIES_RSP);
+ if (e < 0) {
+ pa_log_error("failed to expect for GETCAPABILITIES_RSP");
+ return e;
+ }
+ if (rsp_hdr->posix_errno != 0) {
+ pa_log_error("BT_GETCAPABILITIES failed : %s (%d)", strerror(rsp_hdr->posix_errno), rsp_hdr->posix_errno);
+ return -rsp_hdr->posix_errno;
+ }
+
+ if ((u->transport = getcaps_rsp->transport) == BT_CAPABILITIES_TRANSPORT_A2DP)
+ u->a2dp.sbc_capabilities = getcaps_rsp->sbc_capabilities;
+
+ return 0;
+}
+
+static uint8_t default_bitpool(uint8_t freq, uint8_t mode) {
+ switch (freq) {
+ case BT_SBC_SAMPLING_FREQ_16000:
+ case BT_SBC_SAMPLING_FREQ_32000:
+ return 53;
+ case BT_SBC_SAMPLING_FREQ_44100:
+ switch (mode) {
+ case BT_A2DP_CHANNEL_MODE_MONO:
+ case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
+ return 31;
+ case BT_A2DP_CHANNEL_MODE_STEREO:
+ case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
+ return 53;
+ default:
+ pa_log_warn("Invalid channel mode %u", mode);
+ return 53;
+ }
+ case BT_SBC_SAMPLING_FREQ_48000:
+ switch (mode) {
+ case BT_A2DP_CHANNEL_MODE_MONO:
+ case BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL:
+ return 29;
+ case BT_A2DP_CHANNEL_MODE_STEREO:
+ case BT_A2DP_CHANNEL_MODE_JOINT_STEREO:
+ return 51;
+ default:
+ pa_log_warn("Invalid channel mode %u", mode);
+ return 51;
+ }
+ default:
+ pa_log_warn("Invalid sampling freq %u", freq);
+ return 53;
+ }
+}
+
+static int bt_a2dp_init(struct userdata *u) {
+ sbc_capabilities_t *cap = &u->a2dp.sbc_capabilities;
+ unsigned int max_bitpool, min_bitpool, rate, channels;
+ int dir;
+
+ switch (u->rate) {
+ case 48000:
+ cap->frequency = BT_SBC_SAMPLING_FREQ_48000;
+ break;
+ case 44100:
+ cap->frequency = BT_SBC_SAMPLING_FREQ_44100;
+ break;
+ case 32000:
+ cap->frequency = BT_SBC_SAMPLING_FREQ_32000;
+ break;
+ case 16000:
+ cap->frequency = BT_SBC_SAMPLING_FREQ_16000;
+ break;
+ default:
+ pa_log_error("Rate %d not supported", rate);
+ return -1;
+ }
+
+// if (cfg->has_channel_mode)
+// cap->channel_mode = cfg->channel_mode;
+// else
+ if (channels == 2) {
+ if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_JOINT_STEREO)
+ cap->channel_mode = BT_A2DP_CHANNEL_MODE_JOINT_STEREO;
+ else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_STEREO)
+ cap->channel_mode = BT_A2DP_CHANNEL_MODE_STEREO;
+ else if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL)
+ cap->channel_mode = BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL;
+ } else {
+ if (cap->channel_mode & BT_A2DP_CHANNEL_MODE_MONO)
+ cap->channel_mode = BT_A2DP_CHANNEL_MODE_MONO;
+ }
+
+ if (!cap->channel_mode) {
+ pa_log_error("No supported channel modes");
+ return -1;
+ }
+
+// if (cfg->has_block_length)
+// cap->block_length = cfg->block_length;
+// else
+ if (cap->block_length & BT_A2DP_BLOCK_LENGTH_16)
+ cap->block_length = BT_A2DP_BLOCK_LENGTH_16;
+ else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_12)
+ cap->block_length = BT_A2DP_BLOCK_LENGTH_12;
+ else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_8)
+ cap->block_length = BT_A2DP_BLOCK_LENGTH_8;
+ else if (cap->block_length & BT_A2DP_BLOCK_LENGTH_4)
+ cap->block_length = BT_A2DP_BLOCK_LENGTH_4;
+ else {
+ pa_log_error("No supported block lengths");
+ return -1;
+ }
+
+// if (cfg->has_subbands)
+// cap->subbands = cfg->subbands;
+ if (cap->subbands & BT_A2DP_SUBBANDS_8)
+ cap->subbands = BT_A2DP_SUBBANDS_8;
+ else if (cap->subbands & BT_A2DP_SUBBANDS_4)
+ cap->subbands = BT_A2DP_SUBBANDS_4;
+ else {
+ pa_log_error("No supported subbands");
+ return -1;
+ }
+
+// if (cfg->has_allocation_method)
+// cap->allocation_method = cfg->allocation_method;
+ if (cap->allocation_method & BT_A2DP_ALLOCATION_LOUDNESS)
+ cap->allocation_method = BT_A2DP_ALLOCATION_LOUDNESS;
+ else if (cap->allocation_method & BT_A2DP_ALLOCATION_SNR)
+ cap->allocation_method = BT_A2DP_ALLOCATION_SNR;
+
+// if (cfg->has_bitpool)
+// min_bitpool = max_bitpool = cfg->bitpool;
+// else {
+ min_bitpool = MAX(MIN_BITPOOL, cap->min_bitpool);
+ max_bitpool = MIN(default_bitpool(cap->frequency, cap->channel_mode), cap->max_bitpool);
+// }
+
+ cap->min_bitpool = min_bitpool;
+ cap->max_bitpool = max_bitpool;
+
+ return 0;
+}
+
+static void bt_a2dp_setup(struct bt_a2dp *a2dp) {
+ sbc_capabilities_t active_capabilities = a2dp->sbc_capabilities;
+
+ if (a2dp->sbc_initialized)
+ sbc_reinit(&a2dp->sbc, 0);
+ else
+ sbc_init(&a2dp->sbc, 0);
+ a2dp->sbc_initialized = 1;
+
+ if (active_capabilities.frequency & BT_SBC_SAMPLING_FREQ_16000)
+ a2dp->sbc.frequency = SBC_FREQ_16000;
+
+ if (active_capabilities.frequency & BT_SBC_SAMPLING_FREQ_32000)
+ a2dp->sbc.frequency = SBC_FREQ_32000;
+
+ if (active_capabilities.frequency & BT_SBC_SAMPLING_FREQ_44100)
+ a2dp->sbc.frequency = SBC_FREQ_44100;
+
+ if (active_capabilities.frequency & BT_SBC_SAMPLING_FREQ_48000)
+ a2dp->sbc.frequency = SBC_FREQ_48000;
+
+ if (active_capabilities.channel_mode & BT_A2DP_CHANNEL_MODE_MONO)
+ a2dp->sbc.mode = SBC_MODE_MONO;
+
+ if (active_capabilities.channel_mode & BT_A2DP_CHANNEL_MODE_DUAL_CHANNEL)
+ a2dp->sbc.mode = SBC_MODE_DUAL_CHANNEL;
+
+ if (active_capabilities.channel_mode & BT_A2DP_CHANNEL_MODE_STEREO)
+ a2dp->sbc.mode = SBC_MODE_STEREO;
+
+ if (active_capabilities.channel_mode & BT_A2DP_CHANNEL_MODE_JOINT_STEREO)
+ a2dp->sbc.mode = SBC_MODE_JOINT_STEREO;
+
+ a2dp->sbc.allocation = active_capabilities.allocation_method == BT_A2DP_ALLOCATION_SNR ? SBC_AM_SNR : SBC_AM_LOUDNESS;
+
+ switch (active_capabilities.subbands) {
+ case BT_A2DP_SUBBANDS_4:
+ a2dp->sbc.subbands = SBC_SB_4;
+ break;
+ case BT_A2DP_SUBBANDS_8:
+ a2dp->sbc.subbands = SBC_SB_8;
+ break;
+ }
+
+ switch (active_capabilities.block_length) {
+ case BT_A2DP_BLOCK_LENGTH_4:
+ a2dp->sbc.blocks = SBC_BLK_4;
+ break;
+ case BT_A2DP_BLOCK_LENGTH_8:
+ a2dp->sbc.blocks = SBC_BLK_8;
+ break;
+ case BT_A2DP_BLOCK_LENGTH_12:
+ a2dp->sbc.blocks = SBC_BLK_12;
+ break;
+ case BT_A2DP_BLOCK_LENGTH_16:
+ a2dp->sbc.blocks = SBC_BLK_16;
+ break;
+ }
+
+ a2dp->sbc.bitpool = active_capabilities.max_bitpool;
+ a2dp->codesize = sbc_get_codesize(&a2dp->sbc);
+// a2dp->count = sizeof(struct rtp_header) + sizeof(struct rtp_payload);
+}
+
+static int bt_setconf(struct userdata *u) {
+ int e;
+ char buf[BT_AUDIO_IPC_PACKET_SIZE];
+ bt_audio_rsp_msg_header_t *rsp_hdr = (void*) buf;
+ struct bt_setconfiguration_req *setconf_req = (void*) buf;
+ struct bt_setconfiguration_rsp *setconf_rsp = (void*) buf;
+
+ if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP) {
+ e = bt_a2dp_init(u);
+ if (e < 0) {
+ pa_log_error("a2dp_init error");
+ return e;
+ }
+ }
+
+ memset(setconf_req, 0, BT_AUDIO_IPC_PACKET_SIZE);
+ setconf_req->h.msg_type = BT_SETCONFIGURATION_REQ;
+ strncpy(setconf_req->device, u->addr, 18);
+ setconf_req->transport = u->transport;
+ if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP)
+ setconf_req->sbc_capabilities = u->a2dp.sbc_capabilities;
+ setconf_req->access_mode = BT_CAPABILITIES_ACCESS_MODE_WRITE;
+
+ e = bt_audioservice_send(u->audioservice_fd, &setconf_req->h);
+ if (e < 0) {
+ pa_log_error("failed to send BT_SETCONFIGURATION_REQ");
+ return e;
+ }
+
+ e = bt_audioservice_expect(u->audioservice_fd, &rsp_hdr->msg_h, BT_SETCONFIGURATION_RSP);
+ if (e < 0) {
+ pa_log_error("failed to expect BT_SETCONFIGURATION_RSP");
+ return e;
+ }
+
+ if (rsp_hdr->posix_errno != 0) {
+ pa_log_error("BT_SETCONFIGURATION failed : %s(%d)", strerror(rsp_hdr->posix_errno), rsp_hdr->posix_errno);
+ return -rsp_hdr->posix_errno;
+ }
+
+ u->transport = setconf_rsp->transport;
+ u->link_mtu = setconf_rsp->link_mtu;
+
+ /* setup SBC encoder now we agree on parameters */
+ if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP) {
+ bt_a2dp_setup(&u->a2dp);
+ pa_log/*debug*/("\tallocation=%u\n\tsubbands=%u\n\tblocks=%u\n\tbitpool=%u\n",
+ u->a2dp.sbc.allocation, u->a2dp.sbc.subbands, u->a2dp.sbc.blocks, u->a2dp.sbc.bitpool);
+ }
+
+ return 0;
+}
+
+static int bt_getstreamfd(struct userdata *u) {
+ int e, opt_name;
+ char buf[BT_AUDIO_IPC_PACKET_SIZE];
+ struct bt_streamstart_req *start_req = (void*) buf;
+ bt_audio_rsp_msg_header_t *rsp_hdr = (void*) buf;
+ struct bt_streamfd_ind *streamfd_ind = (void*) buf;
+
+ memset(start_req, 0, BT_AUDIO_IPC_PACKET_SIZE);
+ start_req->h.msg_type = BT_STREAMSTART_REQ;
+
+ e = bt_audioservice_send(u->audioservice_fd, &start_req->h);
+ if (e < 0) {
+ pa_log_error("failed to send BT_STREAMSTART_REQ");
+ return e;
+ }
+
+ e = bt_audioservice_expect(u->audioservice_fd, &rsp_hdr->msg_h, BT_STREAMSTART_RSP);
+ if (e < 0) {
+ pa_log_error("failed to expect BT_STREAMSTART_RSP");
+ return e;
+ }
+
+ if (rsp_hdr->posix_errno != 0) {
+ pa_log_error("BT_START failed : %s(%d)", strerror(rsp_hdr->posix_errno), rsp_hdr->posix_errno);
+ return -rsp_hdr->posix_errno;
+ }
+
+ e = bt_audioservice_expect(u->audioservice_fd, &streamfd_ind->h, BT_STREAMFD_IND);
+ if (e < 0) {
+ pa_log_error("failed to expect BT_STREAMFD_IND");
+ return e;
+ }
+
+ if (u->stream_fd >= 0)
+ close(u->stream_fd);
+
+ u->stream_fd = bt_audio_service_get_data_fd(u->audioservice_fd);
+ if (u->stream_fd < 0) {
+ pa_log_error("failed to get data fd");
+ return -errno;
+ }
+
+// if (u->transport == BT_CAPABILITIES_TRANSPORT_A2DP) {
+// opt_name = SO_SNDTIMEO;
+// if (setsockopt(u->stream_fd, SOL_SOCKET, opt_name, &t, sizeof(t)) < 0) {
+// pa_log_error("failed to set socket options for A2DP");
+// return -errno;
+// }
+// }
+// else {
+// opt_name = SCO_TXBUFS;
+// if (setsockopt(u->stream_fd, SOL_SCO, opt_name, &period_count, sizeof(period_count)) == 0)
+// return 0;
+// opt_name = SO_SNDBUF;
+// if (setsockopt(u->stream_fd, SOL_SCO, opt_name, &period_count, sizeof(period_count)) == 0)
+// return 0;
+// /* FIXME : handle error codes */
+// }
+
+ return 0;
+}
+
+static int bt_hw_constraint(struct userdata *u) {
+ /*TODO: A2DP */
+ u->ss.format = PA_SAMPLE_S16LE;
+ u->ss.rate = 8000;
+ u->ss.channels = 1;
+ return 0;
+}
+
+static int sink_process_msg(pa_msgobject *o, int code, void *data, int64_t offset, pa_memchunk *chunk) {
+ struct userdata *u = PA_SINK(o)->userdata;
+
+ switch (code) {
+
+ case PA_SINK_MESSAGE_SET_STATE:
+ switch ((pa_sink_state_t) PA_PTR_TO_UINT(data)) {
+ case PA_SINK_SUSPENDED:
+ pa_assert(PA_SINK_IS_OPENED(u->sink->thread_info.state));
+ pa_smoother_pause(u->smoother, pa_rtclock_usec());
+ break;
+ case PA_SINK_IDLE:
+ case PA_SINK_RUNNING:
+ if (u->sink->thread_info.state == PA_SINK_SUSPENDED)
+ pa_smoother_resume(u->smoother, pa_rtclock_usec());
+ break;
+ case PA_SINK_UNLINKED:
+ case PA_SINK_INIT:
+ ;
+ }
+ break;
+
+ case PA_SINK_MESSAGE_GET_LATENCY: {
+// pa_usec_t w, r;
+// r = pa_smoother_get(u->smoother, pa_rtclock_usec());
+// w = pa_bytes_to_usec(u->offset + u->memchunk.length, &u->sink->sample_spec);
+// *((pa_usec_t*) data) = w > r ? w - r : 0;
+ break;
+ }
+
+// case SINK_MESSAGE_PASS_SOCKET: {
+// struct pollfd *pollfd;
+// pa_assert(!u->rtpoll_item);
+// u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
+// pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
+// pollfd->fd = u->fd;
+// pollfd->events = pollfd->revents = 0;
+// return 0;
+// }
+ }
+
+ return pa_sink_process_msg(o, code, data, offset, chunk);
+}
+
+static void thread_func(void *userdata) {
+// struct userdata *u = userdata;
+// int write_type = 0;
+//
+// pa_assert(u);
+//
+// pa_log_debug("Thread starting up");
+//
+// pa_thread_mq_install(&u->thread_mq);
+// pa_rtpoll_install(u->rtpoll);
+//
+// pa_smoother_set_time_offset(u->smoother, pa_rtclock_usec());
+//
+// for (;;) {
+// int ret;
+//
+// if (PA_SINK_IS_OPENED(u->sink->thread_info.state))
+// if (u->sink->thread_info.rewind_requested)
+// pa_sink_process_rewind(u->sink, 0);
+//
+// if (u->rtpoll_item) {
+// struct pollfd *pollfd;
+// pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
+//
+// /* Render some data and write it to the fifo */
+// if (PA_SINK_IS_OPENED(u->sink->thread_info.state) && pollfd->revents) {
+// pa_usec_t usec;
+// int64_t n;
+//
+// for (;;) {
+// ssize_t l;
+// void *p;
+//
+// if (u->memchunk.length <= 0)
+// pa_sink_render(u->sink, u->block_size, &u->memchunk);
+//
+// pa_assert(u->memchunk.length > 0);
+//
+// p = pa_memblock_acquire(u->memchunk.memblock);
+// l = pa_write(u->fd, (uint8_t*) p + u->memchunk.index, u->memchunk.length, &write_type);
+// pa_memblock_release(u->memchunk.memblock);
+//
+// pa_assert(l != 0);
+//
+// if (l < 0) {
+//
+// if (errno == EINTR)
+// continue;
+// else if (errno == EAGAIN) {
+//
+// /* OK, we filled all socket buffers up
+// * now. */
+// goto filled_up;
+//
+// } else {
+// pa_log("Failed to write data to FIFO: %s", pa_cstrerror(errno));
+// goto fail;
+// }
+//
+// } else {
+// u->offset += l;
+//
+// u->memchunk.index += l;
+// u->memchunk.length -= l;
+//
+// if (u->memchunk.length <= 0) {
+// pa_memblock_unref(u->memchunk.memblock);
+// pa_memchunk_reset(&u->memchunk);
+// }
+//
+// pollfd->revents = 0;
+//
+// if (u->memchunk.length > 0)
+//
+// /* OK, we wrote less that we asked for,
+// * hence we can assume that the socket
+// * buffers are full now */
+// goto filled_up;
+// }
+// }
+//
+// filled_up:
+//
+// /* At this spot we know that the socket buffers are
+// * fully filled up. This is the best time to estimate
+// * the playback position of the server */
+//
+// n = u->offset;
+//
+//#ifdef SIOCOUTQ
+// {
+// int l;
+// if (ioctl(u->fd, SIOCOUTQ, &l) >= 0 && l > 0)
+// n -= l;
+// }
+//#endif
+//
+// usec = pa_bytes_to_usec(n, &u->sink->sample_spec);
+//
+// if (usec > u->latency)
+// usec -= u->latency;
+// else
+// usec = 0;
+//
+// pa_smoother_put(u->smoother, pa_rtclock_usec(), usec);
+// }
+//
+// /* Hmm, nothing to do. Let's sleep */
+// pollfd->events = PA_SINK_IS_OPENED(u->sink->thread_info.state) ? POLLOUT : 0;
+// }
+//
+// if ((ret = pa_rtpoll_run(u->rtpoll, TRUE)) < 0)
+// goto fail;
+//
+// if (ret == 0)
+// goto finish;
+//
+// if (u->rtpoll_item) {
+// struct pollfd* pollfd;
+//
+// pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
+//
+// if (pollfd->revents & ~POLLOUT) {
+// pa_log("FIFO shutdown.");
+// goto fail;
+// }
+// }
+// }
+//
+//fail:
+// /* If this was no regular exit from the loop we have to continue
+// * processing messages until we received PA_MESSAGE_SHUTDOWN */
+// pa_asyncmsgq_post(u->thread_mq.outq, PA_MSGOBJECT(u->core), PA_CORE_MESSAGE_UNLOAD_MODULE, u->module, 0, NULL, NULL);
+// pa_asyncmsgq_wait_for(u->thread_mq.inq, PA_MESSAGE_SHUTDOWN);
+//
+//finish:
+// pa_log_debug("Thread shutting down");
}
int pa__init(pa_module* m) {
+ int e;
+ char *rate, *channels;
pa_modargs *ma;
+ pa_sink_new_data data;
struct userdata *u;
- int sk = -1;
pa_assert(m);
m->userdata = u = pa_xnew0(struct userdata, 1);
u->module = m;
+ u->core = m->core;
+ u->audioservice_fd = -1;
+ u->stream_fd = -1;
+ u->transport = -1;
+ u->smoother = pa_smoother_new(PA_USEC_PER_SEC, PA_USEC_PER_SEC*2, TRUE, 10);
+ pa_memchunk_reset(&u->memchunk);
+ u->rtpoll = pa_rtpoll_new();
+ pa_thread_mq_init(&u->thread_mq, u->core->mainloop, u->rtpoll);
+ u->rtpoll_item = NULL;
if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
pa_log_error("failed to parse module arguments");
goto fail;
}
+ if (!(u->name = pa_modargs_get_value(ma, "name", DEFAULT_SINK_NAME))) {
+ pa_log_error("failed to get device address from module arguments");
+ goto fail;
+ }
if (!(u->addr = pa_modargs_get_value(ma, "addr", NULL))) {
- pa_log_error("failed to parse device address from module arguments");
+ pa_log_error("failed to get device address from module arguments");
goto fail;
}
- if (!(u->uuid = pa_modargs_get_value(ma, "uuid", NULL))) {
- pa_log_error("failed to parse device uuid from module arguments");
+ if (!(u->profile = pa_modargs_get_value(ma, "profile", NULL))) {
+ pa_log_error("failed to get profile from module arguments");
goto fail;
}
- pa_log("Loading module-bt-device for %s, UUID=%s", u->addr, u->uuid);
+ if (!(rate = pa_modargs_get_value(ma, "rate", NULL))) {
+ pa_log_error("failed to get rate from module arguments");
+ goto fail;
+ }
+ u->rate = atoi(rate);
+ if (!(channels = pa_modargs_get_value(ma, "channels", NULL))) {
+ pa_log_error("failed to get profile from module arguments");
+ goto fail;
+ }
+ u->channels = atoi(channels);
+ pa_log("Loading module-bt-device for %s (%s), profile %s", u->name, u->addr, u->profile);
- /* Connects to the BlueZ audio service via one BlueZ specific well known unix socket */
- sk = bt_audio_service_open();
- if (sk <= 0) {
+ /* connect to the bluez audio service */
+ u->audioservice_fd = bt_audio_service_open();
+ if (u->audioservice_fd <= 0) {
pa_log_error("couldn't connect to bluetooth audio service");
goto fail;
}
- pa_log("socket to audio service: %d", sk); /*debug*/
+ /* queries device capabilities */
+ e = bt_getcaps(u);
+ if (e < 0) {
+ pa_log_error("failed to get device capabilities");
+ goto fail;
+ }
+
+ /* configures the connection */
+ e = bt_setconf(u);
+ if (e < 0) {
+ pa_log_error("failed to set config");
+ goto fail;
+ }
+
+ /* gets the device socket */
+ e = bt_getstreamfd(u);
+ if (e < 0) {
+ pa_log_error("failed to get stream fd (%d)", e);
+ goto fail;
+ }
+
+ /* configure hw supported sample specs */
+ e = bt_hw_constraint(u);
+ if (e < 0) {
+ pa_log_error("failed to configure sample spec");
+ goto fail;
+ }
+
+ /* create sink */
+ pa_sink_new_data_init(&data);
+ data.driver = __FILE__;
+ data.module = m;
+ pa_sink_new_data_set_name(&data, u->name);
+ pa_sink_new_data_set_sample_spec(&data, &u->ss);
+ pa_proplist_sets(data.proplist, PA_PROP_DEVICE_STRING, u->name);
+ pa_proplist_setf(data.proplist, PA_PROP_DEVICE_DESCRIPTION, "Bluetooth sink '%s' (%s)", u->name, u->addr);
+ u->sink = pa_sink_new(m->core, &data, PA_SINK_HARDWARE|PA_SINK_NETWORK);
+ pa_sink_new_data_done(&data);
+ if (!u->sink) {
+ pa_log_error("failed to create sink");
+ goto fail;
+ }
+ u->sink->userdata = u;
+ u->sink->parent.process_msg = sink_process_msg;
+ pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
+ pa_sink_set_rtpoll(u->sink, u->rtpoll);
+
+ /* start rt thread */
+ if (!(u->thread = pa_thread_new(thread_func, u))) {
+ pa_log_error("failed to create thread");
+ goto fail;
+ }
+ pa_sink_put(u->sink);
+
+ pa_modargs_free(ma);
return 0;
fail:
+ if (ma)
+ pa_modargs_free(ma);
pa__done(m);
return -1;
}
projects / platform / upstream / pulseaudio.git / commitdiff