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bluez5: backend-ofono: Add spa_bt_transport support
This commit is contained in:
Frédéric Danis
Wim Taymans
parent
9b6dd9461e
commit
18da8fd21f
3 changed files with 226 additions and 5 deletions
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@ -23,6 +23,11 @@
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*/
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#include <errno.h>
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#include <unistd.h>
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#include <sys/socket.h>
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#include <bluetooth/bluetooth.h>
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#include <bluetooth/sco.h>
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#include <dbus/dbus.h>
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@ -48,6 +53,7 @@ struct spa_bt_backend {
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#define OFONO_SERVICE "org.ofono"
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#define OFONO_HF_AUDIO_MANAGER_INTERFACE OFONO_SERVICE ".HandsfreeAudioManager"
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#define OFONO_HF_AUDIO_CARD_INTERFACE OFONO_SERVICE ".HandsfreeAudioCard"
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#define OFONO_HF_AUDIO_AGENT_INTERFACE OFONO_SERVICE ".HandsfreeAudioAgent"
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#define OFONO_AUDIO_CLIENT "/Profile/ofono"
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@ -74,17 +80,204 @@ struct spa_bt_backend {
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#define OFONO_ERROR_INVALID_ARGUMENTS "org.ofono.Error.InvalidArguments"
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#define OFONO_ERROR_IN_USE "org.ofono.Error.InUse"
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static void ofono_transport_get_mtu(struct spa_bt_backend *backend, struct spa_bt_transport *t)
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{
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t->read_mtu = 48;
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t->write_mtu = 48;
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if (false) {
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struct sco_options sco_opt;
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socklen_t len;
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len = sizeof(sco_opt);
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memset(&sco_opt, 0, len);
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if (getsockopt(t->fd, SOL_SCO, SCO_OPTIONS, &sco_opt, &len) < 0)
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spa_log_warn(backend->log, "getsockopt(SCO_OPTIONS) failed, loading defaults");
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else {
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spa_log_debug(backend->log, "autodetected mtu = %u", sco_opt.mtu);
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t->read_mtu = sco_opt.mtu;
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t->write_mtu = sco_opt.mtu;
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}
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}
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}
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static int ofono_audio_acquire(void *data, bool optional)
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{
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struct spa_bt_transport *transport = data;
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struct spa_bt_backend *backend = transport->backend;
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DBusMessage *m, *r;
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DBusError err;
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int ret = 0;
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m = dbus_message_new_method_call(OFONO_SERVICE,
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transport->path,
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OFONO_HF_AUDIO_CARD_INTERFACE,
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"Acquire");
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if (m == NULL)
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return -ENOMEM;
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dbus_error_init(&err);
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r = dbus_connection_send_with_reply_and_block(backend->conn, m, -1, &err);
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dbus_message_unref(m);
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m = NULL;
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if (r == NULL) {
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spa_log_error(backend->log, "Transport Acquire() failed for transport %s (%s)",
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transport->path, err.message);
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dbus_error_free(&err);
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return -EIO;
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}
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if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
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spa_log_error(backend->log, "Acquire returned error: %s", dbus_message_get_error_name(r));
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ret = -EIO;
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goto finish;
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}
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if (!dbus_message_get_args(r, &err,
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DBUS_TYPE_UNIX_FD, &transport->fd,
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DBUS_TYPE_BYTE, &transport->codec,
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DBUS_TYPE_INVALID)) {
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spa_log_error(backend->log, "Failed to parse Acquire() reply: %s", err.message);
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dbus_error_free(&err);
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ret = -EIO;
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goto finish;
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}
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spa_log_debug(backend->log, "transport %p: Acquire %s, fd %d codec %d", transport,
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transport->path, transport->fd, transport->codec);
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ofono_transport_get_mtu(backend, transport);
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ret = transport->fd;
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finish:
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dbus_message_unref(r);
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return ret;
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}
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static int ofono_audio_release(void *data)
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{
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struct spa_bt_transport *transport = data;
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struct spa_bt_backend *backend = transport->backend;
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if (transport->fd < 0) {
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spa_log_info(backend->log, "transport %s already released", transport->path);
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return 0;
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}
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spa_log_debug(backend->log, "transport %p: Release %s",
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transport, transport->path);
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/* shutdown to make sure connection is dropped immediately */
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shutdown(transport->fd, SHUT_RDWR);
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close(transport->fd);
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transport->fd = -1;
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return 0;
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}
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static DBusHandlerResult ofono_audio_card_removed(struct spa_bt_backend *backend, const char *path)
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{
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struct spa_bt_transport *transport;
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spa_assert(backend);
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spa_assert(path);
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spa_log_debug(backend->log, "oFono card removed: %s", path);
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transport = spa_bt_transport_find(backend->monitor, path);
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if (transport != NULL) {
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struct spa_bt_device *device = transport->device;
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spa_log_debug(backend->log, "transport %p: free %s",
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transport, transport->path);
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spa_bt_transport_free(transport);
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if (device != NULL)
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spa_bt_device_check_profiles(device, false);
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}
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return DBUS_HANDLER_RESULT_HANDLED;
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}
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static const struct spa_bt_transport_implementation ofono_transport_impl = {
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SPA_VERSION_BT_TRANSPORT_IMPLEMENTATION,
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.acquire = ofono_audio_acquire,
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.release = ofono_audio_release,
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};
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static DBusHandlerResult ofono_audio_card_found(struct spa_bt_backend *backend, char *path, DBusMessageIter *props_i)
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{
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const char *remote_address = NULL;
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const char *local_address = NULL;
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struct spa_bt_device *d;
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struct spa_bt_transport *t;
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enum spa_bt_profile profile = SPA_BT_PROFILE_HFP_AG;
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spa_assert(backend);
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spa_assert(path);
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spa_assert(props_i);
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spa_log_debug(backend->log, "oFono new card: %s", path);
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while (dbus_message_iter_get_arg_type(props_i) != DBUS_TYPE_INVALID) {
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DBusMessageIter i, value_i;
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const char *key, *value;
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char c;
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dbus_message_iter_recurse(props_i, &i);
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dbus_message_iter_get_basic(&i, &key);
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dbus_message_iter_next(&i);
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dbus_message_iter_recurse(&i, &value_i);
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if ((c = dbus_message_iter_get_arg_type(&value_i)) != DBUS_TYPE_STRING) {
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spa_log_error(backend->log, "Invalid properties for %s: expected 's', received '%c'", path, c);
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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}
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dbus_message_iter_get_basic(&value_i, &value);
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if (strcmp(key, "RemoteAddress") == 0) {
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remote_address = value;
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} else if (strcmp(key, "LocalAddress") == 0) {
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local_address = value;
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} else if (strcmp(key, "Type") == 0) {
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if (strcmp(value, "gateway") == 0)
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profile = SPA_BT_PROFILE_HFP_HF;
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}
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spa_log_debug(backend->log, "%s: %s", key, value);
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dbus_message_iter_next(props_i);
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}
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d = spa_bt_device_find_by_address(backend->monitor, remote_address, local_address);
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if (!d) {
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spa_log_error(backend->log, "Device doesnt exist for %s", path);
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return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
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}
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char *t_path = strdup(path);
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t = spa_bt_transport_create(backend->monitor, t_path, 0);
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if (t == NULL) {
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spa_log_warn(backend->log, "can't create transport: %m");
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free(t_path);
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return DBUS_HANDLER_RESULT_NEED_MEMORY;
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}
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spa_bt_transport_set_implementation(t, &ofono_transport_impl, t);
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t->device = d;
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spa_list_append(&t->device->transport_list, &t->device_link);
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t->profile = profile;
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t->backend = backend;
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spa_bt_device_connect_profile(t->device, profile);
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spa_log_debug(backend->log, "Transport %s available for oFono", t->path);
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return DBUS_HANDLER_RESULT_HANDLED;
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}
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@ -112,6 +305,7 @@ static DBusHandlerResult ofono_new_audio_connection(DBusConnection *conn, DBusMe
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const char *path;
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int fd;
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uint8_t codec;
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struct spa_bt_transport *t;
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DBusMessage *r = NULL;
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if (dbus_message_get_args(m, NULL,
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@ -123,7 +317,23 @@ static DBusHandlerResult ofono_new_audio_connection(DBusConnection *conn, DBusMe
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goto fail;
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}
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spa_log_debug(backend->log, "NewConnection %s, fd %d codec %d", path, fd, codec);
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t = spa_bt_transport_find(backend->monitor, path);
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if (!t || codec != HFP_AUDIO_CODEC_CVSD || t->fd >= 0) {
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spa_log_warn(backend->log, "New audio connection invalid arguments (path=%s fd=%d, codec=%d)", path, fd, codec);
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r = dbus_message_new_error(m, "org.ofono.Error.InvalidArguments", "Invalid arguments in method call");
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shutdown(fd, SHUT_RDWR);
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close(fd);
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goto fail;
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}
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t->fd = fd;
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t->codec = codec;
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ofono_transport_get_mtu(backend, t);
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spa_log_debug(backend->log, "transport %p: NewConnection %s, fd %d codec %d", t, t->path, t->fd, t->codec);
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/* TODO: pass fd to SCO nodes */
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fail:
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if (r) {
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