267 lines
10 KiB
C
267 lines
10 KiB
C
/*
|
|
* Copyright (C) 2012 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef ANDROID_INCLUDE_BT_RC_H
|
|
#define ANDROID_INCLUDE_BT_RC_H
|
|
|
|
__BEGIN_DECLS
|
|
|
|
/* Macros */
|
|
#define BTRC_MAX_ATTR_STR_LEN 255
|
|
#define BTRC_UID_SIZE 8
|
|
#define BTRC_MAX_APP_SETTINGS 8
|
|
#define BTRC_MAX_FOLDER_DEPTH 4
|
|
#define BTRC_MAX_APP_ATTR_SIZE 16
|
|
#define BTRC_MAX_ELEM_ATTR_SIZE 7
|
|
|
|
typedef uint8_t btrc_uid_t[BTRC_UID_SIZE];
|
|
|
|
typedef enum {
|
|
BTRC_FEAT_NONE = 0x00, /* AVRCP 1.0 */
|
|
BTRC_FEAT_METADATA = 0x01, /* AVRCP 1.3 */
|
|
BTRC_FEAT_ABSOLUTE_VOLUME = 0x02, /* Supports TG role and volume sync */
|
|
BTRC_FEAT_BROWSE = 0x04, /* AVRCP 1.4 and up, with Browsing support */
|
|
} btrc_remote_features_t;
|
|
|
|
typedef enum {
|
|
BTRC_PLAYSTATE_STOPPED = 0x00, /* Stopped */
|
|
BTRC_PLAYSTATE_PLAYING = 0x01, /* Playing */
|
|
BTRC_PLAYSTATE_PAUSED = 0x02, /* Paused */
|
|
BTRC_PLAYSTATE_FWD_SEEK = 0x03, /* Fwd Seek*/
|
|
BTRC_PLAYSTATE_REV_SEEK = 0x04, /* Rev Seek*/
|
|
BTRC_PLAYSTATE_ERROR = 0xFF, /* Error */
|
|
} btrc_play_status_t;
|
|
|
|
typedef enum {
|
|
BTRC_EVT_PLAY_STATUS_CHANGED = 0x01,
|
|
BTRC_EVT_TRACK_CHANGE = 0x02,
|
|
BTRC_EVT_TRACK_REACHED_END = 0x03,
|
|
BTRC_EVT_TRACK_REACHED_START = 0x04,
|
|
BTRC_EVT_PLAY_POS_CHANGED = 0x05,
|
|
BTRC_EVT_APP_SETTINGS_CHANGED = 0x08,
|
|
} btrc_event_id_t;
|
|
|
|
typedef enum {
|
|
BTRC_NOTIFICATION_TYPE_INTERIM = 0,
|
|
BTRC_NOTIFICATION_TYPE_CHANGED = 1,
|
|
} btrc_notification_type_t;
|
|
|
|
typedef enum {
|
|
BTRC_PLAYER_ATTR_EQUALIZER = 0x01,
|
|
BTRC_PLAYER_ATTR_REPEAT = 0x02,
|
|
BTRC_PLAYER_ATTR_SHUFFLE = 0x03,
|
|
BTRC_PLAYER_ATTR_SCAN = 0x04,
|
|
} btrc_player_attr_t;
|
|
|
|
typedef enum {
|
|
BTRC_MEDIA_ATTR_TITLE = 0x01,
|
|
BTRC_MEDIA_ATTR_ARTIST = 0x02,
|
|
BTRC_MEDIA_ATTR_ALBUM = 0x03,
|
|
BTRC_MEDIA_ATTR_TRACK_NUM = 0x04,
|
|
BTRC_MEDIA_ATTR_NUM_TRACKS = 0x05,
|
|
BTRC_MEDIA_ATTR_GENRE = 0x06,
|
|
BTRC_MEDIA_ATTR_PLAYING_TIME = 0x07,
|
|
} btrc_media_attr_t;
|
|
|
|
typedef enum {
|
|
BTRC_PLAYER_VAL_OFF_REPEAT = 0x01,
|
|
BTRC_PLAYER_VAL_SINGLE_REPEAT = 0x02,
|
|
BTRC_PLAYER_VAL_ALL_REPEAT = 0x03,
|
|
BTRC_PLAYER_VAL_GROUP_REPEAT = 0x04
|
|
} btrc_player_repeat_val_t;
|
|
|
|
typedef enum {
|
|
BTRC_PLAYER_VAL_OFF_SHUFFLE = 0x01,
|
|
BTRC_PLAYER_VAL_ALL_SHUFFLE = 0x02,
|
|
BTRC_PLAYER_VAL_GROUP_SHUFFLE = 0x03
|
|
} btrc_player_shuffle_val_t;
|
|
|
|
typedef enum {
|
|
BTRC_STS_BAD_CMD = 0x00, /* Invalid command */
|
|
BTRC_STS_BAD_PARAM = 0x01, /* Invalid parameter */
|
|
BTRC_STS_NOT_FOUND = 0x02, /* Specified parameter is wrong or not found */
|
|
BTRC_STS_INTERNAL_ERR = 0x03, /* Internal Error */
|
|
BTRC_STS_NO_ERROR = 0x04 /* Operation Success */
|
|
} btrc_status_t;
|
|
|
|
typedef struct {
|
|
uint8_t num_attr;
|
|
uint8_t attr_ids[BTRC_MAX_APP_SETTINGS];
|
|
uint8_t attr_values[BTRC_MAX_APP_SETTINGS];
|
|
} btrc_player_settings_t;
|
|
|
|
typedef union
|
|
{
|
|
btrc_play_status_t play_status;
|
|
btrc_uid_t track; /* queue position in NowPlaying */
|
|
uint32_t song_pos;
|
|
btrc_player_settings_t player_setting;
|
|
} btrc_register_notification_t;
|
|
|
|
typedef struct {
|
|
uint8_t id; /* can be attr_id or value_id */
|
|
uint8_t text[BTRC_MAX_ATTR_STR_LEN];
|
|
} btrc_player_setting_text_t;
|
|
|
|
typedef struct {
|
|
uint32_t attr_id;
|
|
uint8_t text[BTRC_MAX_ATTR_STR_LEN];
|
|
} btrc_element_attr_val_t;
|
|
|
|
/** Callback for the controller's supported feautres */
|
|
typedef void (* btrc_remote_features_callback)(bt_bdaddr_t *bd_addr,
|
|
btrc_remote_features_t features);
|
|
|
|
/** Callback for play status request */
|
|
typedef void (* btrc_get_play_status_callback)();
|
|
|
|
/** Callback for list player application attributes (Shuffle, Repeat,...) */
|
|
typedef void (* btrc_list_player_app_attr_callback)();
|
|
|
|
/** Callback for list player application attributes (Shuffle, Repeat,...) */
|
|
typedef void (* btrc_list_player_app_values_callback)(btrc_player_attr_t attr_id);
|
|
|
|
/** Callback for getting the current player application settings value
|
|
** num_attr: specifies the number of attribute ids contained in p_attrs
|
|
*/
|
|
typedef void (* btrc_get_player_app_value_callback) (uint8_t num_attr, btrc_player_attr_t *p_attrs);
|
|
|
|
/** Callback for getting the player application settings attributes' text
|
|
** num_attr: specifies the number of attribute ids contained in p_attrs
|
|
*/
|
|
typedef void (* btrc_get_player_app_attrs_text_callback) (uint8_t num_attr, btrc_player_attr_t *p_attrs);
|
|
|
|
/** Callback for getting the player application settings values' text
|
|
** num_attr: specifies the number of value ids contained in p_vals
|
|
*/
|
|
typedef void (* btrc_get_player_app_values_text_callback) (uint8_t attr_id, uint8_t num_val, uint8_t *p_vals);
|
|
|
|
/** Callback for setting the player application settings values */
|
|
typedef void (* btrc_set_player_app_value_callback) (btrc_player_settings_t *p_vals);
|
|
|
|
/** Callback to fetch the get element attributes of the current song
|
|
** num_attr: specifies the number of attributes requested in p_attrs
|
|
*/
|
|
typedef void (* btrc_get_element_attr_callback) (uint8_t num_attr, btrc_media_attr_t *p_attrs);
|
|
|
|
/** Callback for register notification (Play state change/track change/...)
|
|
** param: Is only valid if event_id is BTRC_EVT_PLAY_POS_CHANGED
|
|
*/
|
|
typedef void (* btrc_register_notification_callback) (btrc_event_id_t event_id, uint32_t param);
|
|
|
|
/* AVRCP 1.4 Enhancements */
|
|
/** Callback for volume change on CT
|
|
** volume: Current volume setting on the CT (0-127)
|
|
*/
|
|
typedef void (* btrc_volume_change_callback) (uint8_t volume, uint8_t ctype);
|
|
|
|
/** Callback for passthrough commands */
|
|
typedef void (* btrc_passthrough_cmd_callback) (int id, int key_state);
|
|
|
|
/** BT-RC callback structure. */
|
|
typedef struct {
|
|
/** set to sizeof(BtRcCallbacks) */
|
|
size_t size;
|
|
btrc_remote_features_callback remote_features_cb;
|
|
btrc_get_play_status_callback get_play_status_cb;
|
|
btrc_list_player_app_attr_callback list_player_app_attr_cb;
|
|
btrc_list_player_app_values_callback list_player_app_values_cb;
|
|
btrc_get_player_app_value_callback get_player_app_value_cb;
|
|
btrc_get_player_app_attrs_text_callback get_player_app_attrs_text_cb;
|
|
btrc_get_player_app_values_text_callback get_player_app_values_text_cb;
|
|
btrc_set_player_app_value_callback set_player_app_value_cb;
|
|
btrc_get_element_attr_callback get_element_attr_cb;
|
|
btrc_register_notification_callback register_notification_cb;
|
|
btrc_volume_change_callback volume_change_cb;
|
|
btrc_passthrough_cmd_callback passthrough_cmd_cb;
|
|
} btrc_callbacks_t;
|
|
|
|
/** Represents the standard BT-RC interface. */
|
|
typedef struct {
|
|
|
|
/** set to sizeof(BtRcInterface) */
|
|
size_t size;
|
|
/**
|
|
* Register the BtRc callbacks
|
|
*/
|
|
bt_status_t (*init)( btrc_callbacks_t* callbacks );
|
|
|
|
/** Respose to GetPlayStatus request. Contains the current
|
|
** 1. Play status
|
|
** 2. Song duration/length
|
|
** 3. Song position
|
|
*/
|
|
bt_status_t (*get_play_status_rsp)( btrc_play_status_t play_status, uint32_t song_len, uint32_t song_pos);
|
|
|
|
/** Lists the support player application attributes (Shuffle/Repeat/...)
|
|
** num_attr: Specifies the number of attributes contained in the pointer p_attrs
|
|
*/
|
|
bt_status_t (*list_player_app_attr_rsp)( int num_attr, btrc_player_attr_t *p_attrs);
|
|
|
|
/** Lists the support player application attributes (Shuffle Off/On/Group)
|
|
** num_val: Specifies the number of values contained in the pointer p_vals
|
|
*/
|
|
bt_status_t (*list_player_app_value_rsp)( int num_val, uint8_t *p_vals);
|
|
|
|
/** Returns the current application attribute values for each of the specified attr_id */
|
|
bt_status_t (*get_player_app_value_rsp)( btrc_player_settings_t *p_vals);
|
|
|
|
/** Returns the application attributes text ("Shuffle"/"Repeat"/...)
|
|
** num_attr: Specifies the number of attributes' text contained in the pointer p_attrs
|
|
*/
|
|
bt_status_t (*get_player_app_attr_text_rsp)( int num_attr, btrc_player_setting_text_t *p_attrs);
|
|
|
|
/** Returns the application attributes text ("Shuffle"/"Repeat"/...)
|
|
** num_attr: Specifies the number of attribute values' text contained in the pointer p_vals
|
|
*/
|
|
bt_status_t (*get_player_app_value_text_rsp)( int num_val, btrc_player_setting_text_t *p_vals);
|
|
|
|
/** Returns the current songs' element attributes text ("Title"/"Album"/"Artist")
|
|
** num_attr: Specifies the number of attributes' text contained in the pointer p_attrs
|
|
*/
|
|
bt_status_t (*get_element_attr_rsp)( uint8_t num_attr, btrc_element_attr_val_t *p_attrs);
|
|
|
|
/** Response to set player attribute request ("Shuffle"/"Repeat")
|
|
** rsp_status: Status of setting the player attributes for the current media player
|
|
*/
|
|
bt_status_t (*set_player_app_value_rsp)(btrc_status_t rsp_status);
|
|
|
|
/* Response to the register notification request (Play state change/track change/...).
|
|
** event_id: Refers to the event_id this notification change corresponds too
|
|
** type: Response type - interim/changed
|
|
** p_params: Based on the event_id, this parameter should be populated
|
|
*/
|
|
bt_status_t (*register_notification_rsp)(btrc_event_id_t event_id,
|
|
btrc_notification_type_t type,
|
|
btrc_register_notification_t *p_param);
|
|
|
|
/* AVRCP 1.4 enhancements */
|
|
|
|
/**Send current volume setting to remote side. Support limited to SetAbsoluteVolume
|
|
** This can be enhanced to support Relative Volume (AVRCP 1.0).
|
|
** With RelateVolume, we will send VOLUME_UP/VOLUME_DOWN opposed to absolute volume level
|
|
** volume: Should be in the range 0-127. bit7 is reseved and cannot be set
|
|
*/
|
|
bt_status_t (*set_volume)(uint8_t volume);
|
|
|
|
/** Closes the interface. */
|
|
void (*cleanup)( void );
|
|
} btrc_interface_t;
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* ANDROID_INCLUDE_BT_RC_H */
|