/* * * BlueZ - Bluetooth protocol stack for Linux * * Copyright (C) 2014 Intel Corporation. All rights reserved. * * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * */ /* Control PDU ids */ #define AVRCP_GET_CAPABILITIES 0x10 #define AVRCP_LIST_PLAYER_ATTRIBUTES 0X11 #define AVRCP_LIST_PLAYER_VALUES 0x12 #define AVRCP_GET_CURRENT_PLAYER_VALUE 0x13 #define AVRCP_SET_PLAYER_VALUE 0x14 #define AVRCP_GET_PLAYER_ATTRIBUTE_TEXT 0x15 #define AVRCP_GET_PLAYER_VALUE_TEXT 0x16 #define AVRCP_DISPLAYABLE_CHARSET 0x17 #define AVRCP_CT_BATTERY_STATUS 0x18 #define AVRCP_GET_ELEMENT_ATTRIBUTES 0x20 #define AVRCP_GET_PLAY_STATUS 0x30 #define AVRCP_REGISTER_NOTIFICATION 0x31 #define AVRCP_REQUEST_CONTINUING 0x40 #define AVRCP_ABORT_CONTINUING 0x41 #define AVRCP_SET_ABSOLUTE_VOLUME 0x50 #define AVRCP_SET_ADDRESSED_PLAYER 0x60 #define AVRCP_SET_BROWSED_PLAYER 0x70 #define AVRCP_GET_FOLDER_ITEMS 0x71 #define AVRCP_CHANGE_PATH 0x72 #define AVRCP_GET_ITEM_ATTRIBUTES 0x73 #define AVRCP_PLAY_ITEM 0x74 #define AVRCP_SEARCH 0x80 #define AVRCP_ADD_TO_NOW_PLAYING 0x90 #define AVRCP_GENERAL_REJECT 0xA0 /* Notification events */ #define AVRCP_EVENT_STATUS_CHANGED 0x01 #define AVRCP_EVENT_TRACK_CHANGED 0x02 #define AVRCP_EVENT_TRACK_REACHED_END 0x03 #define AVRCP_EVENT_TRACK_REACHED_START 0x04 #define AVRCP_EVENT_PLAYBACK_POS_CHANGED 0x05 #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 #define AVRCP_EVENT_LAST AVRCP_EVENT_VOLUME_CHANGED /* Status codes */ #define AVRCP_STATUS_INVALID_COMMAND 0x00 #define AVRCP_STATUS_INVALID_PARAM 0x01 #define AVRCP_STATUS_PARAM_NOT_FOUND 0x02 #define AVRCP_STATUS_INTERNAL_ERROR 0x03 #define AVRCP_STATUS_SUCCESS 0x04 #define AVRCP_STATUS_OUT_OF_BOUNDS 0x0b #define AVRCP_STATUS_INVALID_PLAYER_ID 0x11 #define AVRCP_STATUS_PLAYER_NOT_BROWSABLE 0x12 #define AVRCP_STATUS_NO_AVAILABLE_PLAYERS 0x15 #define AVRCP_STATUS_ADDRESSED_PLAYER_CHANGED 0x16 /* Capabilities for AVRCP_GET_CAPABILITIES pdu */ #define CAP_COMPANY_ID 0x02 #define CAP_EVENTS_SUPPORTED 0x03 /* Player Attributes */ #define AVRCP_ATTRIBUTE_ILEGAL 0x00 #define AVRCP_ATTRIBUTE_EQUALIZER 0x01 #define AVRCP_ATTRIBUTE_REPEAT_MODE 0x02 #define AVRCP_ATTRIBUTE_SHUFFLE 0x03 #define AVRCP_ATTRIBUTE_SCAN 0x04 #define AVRCP_ATTRIBUTE_LAST AVRCP_ATTRIBUTE_SCAN /* Company IDs for vendor dependent commands */ #define IEEEID_BTSIG 0x001958 /* Parameters legths */ #define AVRCP_REGISTER_NOTIFICATION_PARAM_LENGTH 5 struct avrcp; struct avrcp_control_handler { uint8_t id; uint8_t code; uint8_t rsp; ssize_t (*func) (struct avrcp *session, uint8_t transaction, uint16_t params_len, uint8_t *params, void *user_data); }; struct avrcp_passthrough_handler { uint8_t op; bool (*func) (struct avrcp *session, bool pressed, void *user_data); }; typedef void (*avrcp_destroy_cb_t) (void *user_data); static inline uint32_t ntoh24(const uint8_t src[3]) { return src[0] << 16 | src[1] << 8 | src[2]; } static inline void hton24(uint8_t dst[3], uint32_t src) { dst[0] = (src & 0xff0000) >> 16; dst[1] = (src & 0x00ff00) >> 8; dst[2] = (src & 0x0000ff); } struct avrcp *avrcp_new(int fd, size_t imtu, size_t omtu, uint16_t version); void avrcp_shutdown(struct avrcp *session); void avrcp_set_destroy_cb(struct avrcp *session, avrcp_destroy_cb_t cb, void *user_data); void avrcp_set_control_handlers(struct avrcp *session, const struct avrcp_control_handler *handlers, void *user_data); void avrcp_set_passthrough_handlers(struct avrcp *session, const struct avrcp_passthrough_handler *handlers, void *user_data); int avrcp_init_uinput(struct avrcp *session, const char *name, const char *address); int avrcp_send(struct avrcp *session, uint8_t transaction, uint8_t code, uint8_t subunit, uint8_t pdu_id, uint8_t *params, size_t params_len); int avrcp_get_capabilities(struct avrcp *session, uint8_t param, avctp_rsp_cb func, void *user_data); int avrcp_register_notification(struct avrcp *session, uint8_t event, uint32_t interval, avctp_rsp_cb func, void *user_data); int avrcp_list_player_attributes(struct avrcp *session, avctp_rsp_cb func, void *user_data); int avrcp_get_player_attribute_text(struct avrcp *session, uint8_t *attributes, uint8_t attr_len, avctp_rsp_cb func, void *user_data); int avrcp_set_player_value(struct avrcp *session, uint8_t *attributes, uint8_t attr_count, uint8_t *values, avctp_rsp_cb func, void *user_data); int avrcp_get_current_player_value(struct avrcp *session, uint8_t *attrs, uint8_t attr_count, avctp_rsp_cb func, void *user_data); int avrcp_get_play_status(struct avrcp *session, avctp_rsp_cb func, void *user_data); int avrcp_set_volume(struct avrcp *session, uint8_t volume, avctp_rsp_cb func, void *user_data); int avrcp_get_element_attributes(struct avrcp *session, avctp_rsp_cb func, void *user_data); int avrcp_set_addressed_player(struct avrcp *session, uint16_t player_id, avctp_rsp_cb func, void *user_data); int avrcp_get_play_status_rsp(struct avrcp *session, uint8_t transaction, uint32_t position, uint32_t duration, uint8_t status); int avrcp_get_element_attrs_rsp(struct avrcp *session, uint8_t transaction, uint8_t *params, size_t params_len); int avrcp_register_notification_rsp(struct avrcp *session, uint8_t transaction, uint8_t code, uint8_t *params, size_t params_len); int avrcp_send_passthrough(struct avrcp *session, uint32_t vendor, uint8_t op);