mirror of
https://git.kernel.org/pub/scm/bluetooth/bluez.git
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AVRCP: Add support for available player changed event for CT role
This adds support for registering to available player changed event if supported by TG.
This commit is contained in:
Luiz Augusto von Dentz
Johan Hedberg
parent
bf1f68d91e
commit
c794c470e8
@ -196,6 +196,7 @@ struct avrcp {
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gboolean target;
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uint16_t version;
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int features;
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GSList *players;
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void (*init_control) (struct avrcp *session);
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void (*init_browsing) (struct avrcp *session);
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@ -2058,264 +2059,6 @@ static void avrcp_player_parse_features(struct avrcp_player *player,
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}
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}
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static void avrcp_parse_media_player_item(struct avrcp *session,
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uint8_t *operands, uint16_t len)
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{
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struct avrcp_player *player = session->player;
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struct media_player *mp = player->user_data;
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uint16_t id, namelen;
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uint32_t subtype;
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const char *curval, *strval;
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char name[255];
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if (len < 28)
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return;
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id = bt_get_be16(&operands[0]);
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if (player->id != id)
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return;
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media_player_set_type(mp, type_to_string(operands[2]));
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subtype = bt_get_be32(&operands[3]);
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media_player_set_subtype(mp, subtype_to_string(subtype));
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curval = media_player_get_status(mp);
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strval = status_to_string(operands[7]);
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if (g_strcmp0(curval, strval) != 0) {
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media_player_set_status(mp, strval);
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avrcp_get_play_status(session);
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}
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avrcp_player_parse_features(player, &operands[8]);
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namelen = bt_get_be16(&operands[26]);
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if (namelen > 0 && namelen + 28 == len) {
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namelen = MIN(namelen, sizeof(name) - 1);
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memcpy(name, &operands[28], namelen);
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name[namelen] = '\0';
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media_player_set_name(mp, name);
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}
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avrcp_set_browsed_player(session, player);
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}
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static gboolean avrcp_get_media_player_list_rsp(struct avctp *conn,
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uint8_t *operands,
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size_t operand_count,
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void *user_data)
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{
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struct avrcp_browsing_header *pdu = (void *) operands;
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struct avrcp *session = user_data;
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uint16_t count;
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size_t i;
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if (pdu->params[0] != AVRCP_STATUS_SUCCESS || operand_count < 5)
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return FALSE;
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count = bt_get_be16(&operands[6]);
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for (i = 8; count && i < operand_count; count--) {
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uint8_t type;
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uint16_t len;
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type = operands[i++];
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len = bt_get_be16(&operands[i]);
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i += 2;
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if (type != 0x01) {
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i += len;
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continue;
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}
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if (i + len > operand_count) {
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error("Invalid player item length");
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return FALSE;
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}
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avrcp_parse_media_player_item(session, &operands[i], len);
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i += len;
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}
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return FALSE;
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}
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static void avrcp_get_media_player_list(struct avrcp *session)
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{
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uint8_t buf[AVRCP_BROWSING_HEADER_LENGTH + 10];
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struct avrcp_browsing_header *pdu = (void *) buf;
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memset(buf, 0, sizeof(buf));
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pdu->pdu_id = AVRCP_GET_FOLDER_ITEMS;
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pdu->param_len = htons(10);
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avctp_send_browsing_req(session->conn, buf, sizeof(buf),
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avrcp_get_media_player_list_rsp, session);
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}
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static void avrcp_volume_changed(struct avrcp *session,
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struct avrcp_header *pdu)
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{
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struct avrcp_player *player = session->player;
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uint8_t volume;
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if (player == NULL)
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return;
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volume = pdu->params[1] & 0x7F;
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player->cb->set_volume(volume, session->dev, player->user_data);
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}
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static void avrcp_status_changed(struct avrcp *session,
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struct avrcp_header *pdu)
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{
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struct avrcp_player *player = session->player;
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struct media_player *mp = player->user_data;
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uint8_t value;
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const char *curval, *strval;
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value = pdu->params[1];
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curval = media_player_get_status(mp);
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strval = status_to_string(value);
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if (g_strcmp0(curval, strval) == 0)
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return;
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media_player_set_status(mp, strval);
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avrcp_get_play_status(session);
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}
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static void avrcp_track_changed(struct avrcp *session,
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struct avrcp_header *pdu)
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{
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uint64_t uid;
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if (session->browsing_id) {
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uid = bt_get_be64(&pdu->params[1]);
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avrcp_get_item_attributes(session, uid);
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} else
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avrcp_get_element_attributes(session);
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}
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static void avrcp_setting_changed(struct avrcp *session,
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struct avrcp_header *pdu)
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{
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struct avrcp_player *player = session->player;
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struct media_player *mp = player->user_data;
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uint8_t count = pdu->params[1];
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int i;
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for (i = 2; count > 0; count--, i += 2) {
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const char *key;
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const char *value;
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key = attr_to_str(pdu->params[i]);
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if (key == NULL)
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continue;
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value = attrval_to_str(pdu->params[i], pdu->params[i + 1]);
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if (value == NULL)
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continue;
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media_player_set_setting(mp, key, value);
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}
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}
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static void avrcp_addressed_player_changed(struct avrcp *session,
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struct avrcp_header *pdu)
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{
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struct avrcp_player *player = session->player;
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uint16_t id = bt_get_be16(&pdu->params[1]);
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if (player->id == id)
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return;
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player->id = id;
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player->uid_counter = bt_get_be16(&pdu->params[3]);
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avrcp_get_media_player_list(session);
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}
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static void avrcp_uids_changed(struct avrcp *session, struct avrcp_header *pdu)
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{
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struct avrcp_player *player = session->player;
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player->uid_counter = bt_get_be16(&pdu->params[1]);
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}
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static gboolean avrcp_handle_event(struct avctp *conn,
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uint8_t code, uint8_t subunit,
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uint8_t *operands, size_t operand_count,
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void *user_data)
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{
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struct avrcp *session = user_data;
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struct avrcp_header *pdu = (void *) operands;
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uint8_t event;
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if (code != AVC_CTYPE_INTERIM && code != AVC_CTYPE_CHANGED)
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return FALSE;
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event = pdu->params[0];
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if (code == AVC_CTYPE_CHANGED) {
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session->registered_events ^= (1 << event);
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avrcp_register_notification(session, event);
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return FALSE;
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}
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switch (event) {
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case AVRCP_EVENT_VOLUME_CHANGED:
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avrcp_volume_changed(session, pdu);
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break;
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case AVRCP_EVENT_STATUS_CHANGED:
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avrcp_status_changed(session, pdu);
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break;
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case AVRCP_EVENT_TRACK_CHANGED:
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avrcp_track_changed(session, pdu);
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break;
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case AVRCP_EVENT_SETTINGS_CHANGED:
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avrcp_setting_changed(session, pdu);
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break;
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case AVRCP_EVENT_ADDRESSED_PLAYER_CHANGED:
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avrcp_addressed_player_changed(session, pdu);
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break;
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case AVRCP_EVENT_UIDS_CHANGED:
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avrcp_uids_changed(session, pdu);
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break;
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}
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session->registered_events |= (1 << event);
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return TRUE;
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}
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static void avrcp_register_notification(struct avrcp *session, uint8_t event)
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{
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uint8_t buf[AVRCP_HEADER_LENGTH + AVRCP_REGISTER_NOTIFICATION_PARAM_LENGTH];
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struct avrcp_header *pdu = (void *) buf;
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uint8_t length;
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memset(buf, 0, sizeof(buf));
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set_company_id(pdu->company_id, IEEEID_BTSIG);
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pdu->pdu_id = AVRCP_REGISTER_NOTIFICATION;
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pdu->packet_type = AVRCP_PACKET_TYPE_SINGLE;
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pdu->params[0] = event;
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pdu->params_len = htons(AVRCP_REGISTER_NOTIFICATION_PARAM_LENGTH);
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length = AVRCP_HEADER_LENGTH + ntohs(pdu->params_len);
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avctp_send_vendordep_req(session->conn, AVC_CTYPE_NOTIFY,
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AVC_SUBUNIT_PANEL, buf, length,
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avrcp_handle_event, session);
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}
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static void avrcp_set_player_value(struct avrcp *session, uint8_t attr,
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uint8_t val)
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{
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@ -2444,6 +2187,355 @@ static const struct media_player_callback ct_cbs = {
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.rewind = ct_rewind,
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};
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static struct avrcp_player *create_ct_player(struct avrcp *session,
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uint16_t id)
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{
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struct avrcp_player *player;
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struct media_player *mp;
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const char *path;
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player = g_new0(struct avrcp_player, 1);
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player->sessions = g_slist_prepend(player->sessions, session);
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path = device_get_path(session->dev->btd_dev);
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mp = media_player_controller_create(path, id);
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if (mp == NULL)
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return NULL;
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media_player_set_callbacks(mp, &ct_cbs, player);
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player->user_data = mp;
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player->destroy = (GDestroyNotify) media_player_destroy;
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if (session->player == NULL)
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session->player = player;
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session->players = g_slist_prepend(session->players, player);
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return player;
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}
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static struct avrcp_player *find_ct_player(struct avrcp *session, uint16_t id)
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{
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GSList *l;
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for (l = session->players; l; l = l->next) {
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struct avrcp_player *player = l->data;
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if (player->id == 0) {
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player->id = id;
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return player;
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}
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if (player->id == id)
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return player;
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}
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return NULL;
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}
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static struct avrcp_player *
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avrcp_parse_media_player_item(struct avrcp *session, uint8_t *operands,
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uint16_t len)
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{
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struct avrcp_player *player;
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struct media_player *mp;
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uint16_t id, namelen;
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uint32_t subtype;
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const char *curval, *strval;
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char name[255];
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if (len < 28)
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return NULL;
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id = bt_get_be16(&operands[0]);
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player = find_ct_player(session, id);
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if (player == NULL) {
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player = create_ct_player(session, id);
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if (player == NULL)
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return NULL;
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}
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mp = player->user_data;
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media_player_set_type(mp, type_to_string(operands[2]));
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subtype = bt_get_be32(&operands[3]);
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media_player_set_subtype(mp, subtype_to_string(subtype));
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curval = media_player_get_status(mp);
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strval = status_to_string(operands[7]);
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if (g_strcmp0(curval, strval) != 0) {
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media_player_set_status(mp, strval);
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avrcp_get_play_status(session);
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}
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avrcp_player_parse_features(player, &operands[8]);
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namelen = bt_get_be16(&operands[26]);
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if (namelen > 0 && namelen + 28 == len) {
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namelen = MIN(namelen, sizeof(name) - 1);
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memcpy(name, &operands[28], namelen);
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name[namelen] = '\0';
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media_player_set_name(mp, name);
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}
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if (session->player == player)
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avrcp_set_browsed_player(session, player);
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return player;
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}
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static void player_destroy(gpointer data)
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{
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struct avrcp_player *player = data;
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if (player->destroy)
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player->destroy(player->user_data);
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g_slist_free(player->sessions);
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g_free(player->features);
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g_free(player);
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}
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static gboolean avrcp_get_media_player_list_rsp(struct avctp *conn,
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uint8_t *operands,
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size_t operand_count,
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void *user_data)
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{
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struct avrcp_browsing_header *pdu = (void *) operands;
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struct avrcp *session = user_data;
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uint16_t count;
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size_t i;
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GSList *removed;
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if (pdu->params[0] != AVRCP_STATUS_SUCCESS || operand_count < 5)
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return FALSE;
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removed = g_slist_copy(session->players);
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count = bt_get_be16(&operands[6]);
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for (i = 8; count && i < operand_count; count--) {
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struct avrcp_player *player;
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uint8_t type;
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uint16_t len;
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type = operands[i++];
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len = bt_get_be16(&operands[i]);
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i += 2;
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if (type != 0x01) {
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i += len;
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continue;
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}
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if (i + len > operand_count) {
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error("Invalid player item length");
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return FALSE;
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}
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player = avrcp_parse_media_player_item(session, &operands[i],
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len);
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if (player)
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removed = g_slist_remove(removed, player);
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i += len;
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}
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g_slist_free_full(removed, player_destroy);
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return FALSE;
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}
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static void avrcp_get_media_player_list(struct avrcp *session)
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{
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uint8_t buf[AVRCP_BROWSING_HEADER_LENGTH + 10];
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struct avrcp_browsing_header *pdu = (void *) buf;
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memset(buf, 0, sizeof(buf));
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pdu->pdu_id = AVRCP_GET_FOLDER_ITEMS;
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pdu->param_len = htons(10);
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avctp_send_browsing_req(session->conn, buf, sizeof(buf),
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avrcp_get_media_player_list_rsp, session);
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}
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static void avrcp_volume_changed(struct avrcp *session,
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struct avrcp_header *pdu)
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{
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struct avrcp_player *player = session->player;
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uint8_t volume;
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if (player == NULL)
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return;
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volume = pdu->params[1] & 0x7F;
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player->cb->set_volume(volume, session->dev, player->user_data);
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}
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static void avrcp_status_changed(struct avrcp *session,
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struct avrcp_header *pdu)
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{
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struct avrcp_player *player = session->player;
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struct media_player *mp = player->user_data;
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uint8_t value;
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const char *curval, *strval;
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value = pdu->params[1];
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curval = media_player_get_status(mp);
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strval = status_to_string(value);
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if (g_strcmp0(curval, strval) == 0)
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return;
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media_player_set_status(mp, strval);
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avrcp_get_play_status(session);
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}
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static void avrcp_track_changed(struct avrcp *session,
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struct avrcp_header *pdu)
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{
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uint64_t uid;
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if (session->browsing_id) {
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uid = bt_get_be64(&pdu->params[1]);
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avrcp_get_item_attributes(session, uid);
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} else
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avrcp_get_element_attributes(session);
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}
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||||
|
||||
static void avrcp_setting_changed(struct avrcp *session,
|
||||
struct avrcp_header *pdu)
|
||||
{
|
||||
struct avrcp_player *player = session->player;
|
||||
struct media_player *mp = player->user_data;
|
||||
uint8_t count = pdu->params[1];
|
||||
int i;
|
||||
|
||||
for (i = 2; count > 0; count--, i += 2) {
|
||||
const char *key;
|
||||
const char *value;
|
||||
|
||||
key = attr_to_str(pdu->params[i]);
|
||||
if (key == NULL)
|
||||
continue;
|
||||
|
||||
value = attrval_to_str(pdu->params[i], pdu->params[i + 1]);
|
||||
if (value == NULL)
|
||||
continue;
|
||||
|
||||
media_player_set_setting(mp, key, value);
|
||||
}
|
||||
}
|
||||
|
||||
static void avrcp_available_players_changed(struct avrcp *session,
|
||||
struct avrcp_header *pdu)
|
||||
{
|
||||
avrcp_get_media_player_list(session);
|
||||
}
|
||||
|
||||
static void avrcp_addressed_player_changed(struct avrcp *session,
|
||||
struct avrcp_header *pdu)
|
||||
{
|
||||
struct avrcp_player *player = session->player;
|
||||
uint16_t id = bt_get_be16(&pdu->params[1]);
|
||||
|
||||
if (player->id == id)
|
||||
return;
|
||||
|
||||
player = find_ct_player(session, id);
|
||||
if (player == NULL)
|
||||
return;
|
||||
|
||||
player->uid_counter = bt_get_be16(&pdu->params[3]);
|
||||
session->player = player;
|
||||
|
||||
avrcp_get_media_player_list(session);
|
||||
}
|
||||
|
||||
static void avrcp_uids_changed(struct avrcp *session, struct avrcp_header *pdu)
|
||||
{
|
||||
struct avrcp_player *player = session->player;
|
||||
|
||||
player->uid_counter = bt_get_be16(&pdu->params[1]);
|
||||
}
|
||||
|
||||
static gboolean avrcp_handle_event(struct avctp *conn,
|
||||
uint8_t code, uint8_t subunit,
|
||||
uint8_t *operands, size_t operand_count,
|
||||
void *user_data)
|
||||
{
|
||||
struct avrcp *session = user_data;
|
||||
struct avrcp_header *pdu = (void *) operands;
|
||||
uint8_t event;
|
||||
|
||||
if (code != AVC_CTYPE_INTERIM && code != AVC_CTYPE_CHANGED)
|
||||
return FALSE;
|
||||
|
||||
event = pdu->params[0];
|
||||
|
||||
if (code == AVC_CTYPE_CHANGED) {
|
||||
session->registered_events ^= (1 << event);
|
||||
avrcp_register_notification(session, event);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
switch (event) {
|
||||
case AVRCP_EVENT_VOLUME_CHANGED:
|
||||
avrcp_volume_changed(session, pdu);
|
||||
break;
|
||||
case AVRCP_EVENT_STATUS_CHANGED:
|
||||
avrcp_status_changed(session, pdu);
|
||||
break;
|
||||
case AVRCP_EVENT_TRACK_CHANGED:
|
||||
avrcp_track_changed(session, pdu);
|
||||
break;
|
||||
case AVRCP_EVENT_SETTINGS_CHANGED:
|
||||
avrcp_setting_changed(session, pdu);
|
||||
break;
|
||||
case AVRCP_EVENT_AVAILABLE_PLAYERS_CHANGED:
|
||||
avrcp_available_players_changed(session, pdu);
|
||||
break;
|
||||
case AVRCP_EVENT_ADDRESSED_PLAYER_CHANGED:
|
||||
avrcp_addressed_player_changed(session, pdu);
|
||||
break;
|
||||
case AVRCP_EVENT_UIDS_CHANGED:
|
||||
avrcp_uids_changed(session, pdu);
|
||||
break;
|
||||
}
|
||||
|
||||
session->registered_events |= (1 << event);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static void avrcp_register_notification(struct avrcp *session, uint8_t event)
|
||||
{
|
||||
uint8_t buf[AVRCP_HEADER_LENGTH + AVRCP_REGISTER_NOTIFICATION_PARAM_LENGTH];
|
||||
struct avrcp_header *pdu = (void *) buf;
|
||||
uint8_t length;
|
||||
|
||||
memset(buf, 0, sizeof(buf));
|
||||
|
||||
set_company_id(pdu->company_id, IEEEID_BTSIG);
|
||||
pdu->pdu_id = AVRCP_REGISTER_NOTIFICATION;
|
||||
pdu->packet_type = AVRCP_PACKET_TYPE_SINGLE;
|
||||
pdu->params[0] = event;
|
||||
pdu->params_len = htons(AVRCP_REGISTER_NOTIFICATION_PARAM_LENGTH);
|
||||
|
||||
length = AVRCP_HEADER_LENGTH + ntohs(pdu->params_len);
|
||||
|
||||
avctp_send_vendordep_req(session->conn, AVC_CTYPE_NOTIFY,
|
||||
AVC_SUBUNIT_PANEL, buf, length,
|
||||
avrcp_handle_event, session);
|
||||
}
|
||||
|
||||
static gboolean avrcp_get_capabilities_resp(struct avctp *conn,
|
||||
uint8_t code, uint8_t subunit,
|
||||
uint8_t *operands, size_t operand_count,
|
||||
@ -2470,6 +2562,7 @@ static gboolean avrcp_get_capabilities_resp(struct avctp *conn,
|
||||
case AVRCP_EVENT_SETTINGS_CHANGED:
|
||||
case AVRCP_EVENT_ADDRESSED_PLAYER_CHANGED:
|
||||
case AVRCP_EVENT_UIDS_CHANGED:
|
||||
case AVRCP_EVENT_AVAILABLE_PLAYERS_CHANGED:
|
||||
avrcp_register_notification(session, event);
|
||||
break;
|
||||
}
|
||||
@ -2581,8 +2674,6 @@ static void session_ct_init_browsing(struct avrcp *session)
|
||||
static void session_ct_init_control(struct avrcp *session)
|
||||
{
|
||||
struct avrcp_player *player;
|
||||
struct media_player *mp;
|
||||
const char *path;
|
||||
|
||||
DBG("%p version 0x%04x", session, session->version);
|
||||
|
||||
@ -2594,20 +2685,10 @@ static void session_ct_init_control(struct avrcp *session)
|
||||
if (session->version >= 0x0104)
|
||||
session->supported_events = (1 << AVRCP_EVENT_VOLUME_CHANGED);
|
||||
|
||||
player = g_new0(struct avrcp_player, 1);
|
||||
player->sessions = g_slist_prepend(player->sessions, session);
|
||||
session->player = player;
|
||||
|
||||
path = device_get_path(session->dev->btd_dev);
|
||||
|
||||
mp = media_player_controller_create(path);
|
||||
if (mp == NULL)
|
||||
player = create_ct_player(session, 0);
|
||||
if (player == NULL)
|
||||
return;
|
||||
|
||||
media_player_set_callbacks(mp, &ct_cbs, player);
|
||||
player->user_data = mp;
|
||||
player->destroy = (GDestroyNotify) media_player_destroy;
|
||||
|
||||
if (session->version < 0x0103)
|
||||
return;
|
||||
|
||||
@ -2641,26 +2722,11 @@ static void session_tg_destroy(struct avrcp *session)
|
||||
session_destroy(session);
|
||||
}
|
||||
|
||||
static void player_destroy(gpointer data)
|
||||
{
|
||||
struct avrcp_player *player = data;
|
||||
|
||||
if (player->destroy)
|
||||
player->destroy(player->user_data);
|
||||
|
||||
g_slist_free(player->sessions);
|
||||
g_free(player->features);
|
||||
g_free(player);
|
||||
}
|
||||
|
||||
static void session_ct_destroy(struct avrcp *session)
|
||||
{
|
||||
struct avrcp_player *player = session->player;
|
||||
|
||||
DBG("%p", session);
|
||||
|
||||
if (player != NULL)
|
||||
player_destroy(player);
|
||||
g_slist_free_full(session->players, player_destroy);
|
||||
|
||||
session_destroy(session);
|
||||
}
|
||||
|
||||
@ -74,6 +74,7 @@
|
||||
#define AVRCP_EVENT_TRACK_REACHED_END 0x03
|
||||
#define AVRCP_EVENT_TRACK_REACHED_START 0x04
|
||||
#define AVRCP_EVENT_SETTINGS_CHANGED 0x08
|
||||
#define AVRCP_EVENT_AVAILABLE_PLAYERS_CHANGED 0x0a
|
||||
#define AVRCP_EVENT_ADDRESSED_PLAYER_CHANGED 0x0b
|
||||
#define AVRCP_EVENT_UIDS_CHANGED 0x0c
|
||||
#define AVRCP_EVENT_VOLUME_CHANGED 0x0d
|
||||
|
||||
@ -765,13 +765,14 @@ void media_player_destroy(struct media_player *mp)
|
||||
g_free(mp);
|
||||
}
|
||||
|
||||
struct media_player *media_player_controller_create(const char *path)
|
||||
struct media_player *media_player_controller_create(const char *path,
|
||||
uint16_t id)
|
||||
{
|
||||
struct media_player *mp;
|
||||
|
||||
mp = g_new0(struct media_player, 1);
|
||||
mp->device = g_strdup(path);
|
||||
mp->path = g_strdup_printf("%s/player1", path);
|
||||
mp->path = g_strdup_printf("%s/player%u", path, id);
|
||||
mp->settings = g_hash_table_new_full(g_str_hash, g_str_equal,
|
||||
g_free, g_free);
|
||||
mp->track = g_hash_table_new_full(g_str_hash, g_str_equal,
|
||||
|
||||
@ -55,7 +55,8 @@ struct media_player_callback {
|
||||
int (*rewind) (struct media_player *mp, void *user_data);
|
||||
};
|
||||
|
||||
struct media_player *media_player_controller_create(const char *path);
|
||||
struct media_player *media_player_controller_create(const char *path,
|
||||
uint16_t id);
|
||||
void media_player_destroy(struct media_player *mp);
|
||||
void media_player_set_duration(struct media_player *mp, uint32_t duration);
|
||||
void media_player_set_position(struct media_player *mp, uint32_t position);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user