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9080d086f2
bluez/android/avrcp-lib.h
Luiz Augusto von Dentz 9080d086f2 android/avrcp-lib: Add support for parsing GetPlayStatus PDU
2014-03-17 14:53:32 +02:00

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/*
*
* 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
/* equalizer values */
#define AVRCP_EQUALIZER_OFF 0x01
#define AVRCP_EQUALIZER_ON 0x02
/* repeat mode values */
#define AVRCP_REPEAT_MODE_OFF 0x01
#define AVRCP_REPEAT_MODE_SINGLE 0x02
#define AVRCP_REPEAT_MODE_ALL 0x03
#define AVRCP_REPEAT_MODE_GROUP 0x04
/* shuffle values */
#define AVRCP_SHUFFLE_OFF 0x01
#define AVRCP_SHUFFLE_ALL 0x02
#define AVRCP_SHUFFLE_GROUP 0x03
/* scan values */
#define AVRCP_SCAN_OFF 0x01
#define AVRCP_SCAN_ALL 0x02
#define AVRCP_SCAN_GROUP 0x03
/* 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_control_ind {
int (*get_capabilities) (struct avrcp *session, uint8_t transaction,
void *user_data);
int (*list_attributes) (struct avrcp *session, uint8_t transaction,
void *user_data);
int (*get_attribute_text) (struct avrcp *session, uint8_t transaction,
uint8_t number, uint8_t *attrs,
void *user_data);
int (*list_values) (struct avrcp *session, uint8_t transaction,
uint8_t attr, void *user_data);
int (*get_value_text) (struct avrcp *session, uint8_t transaction,
uint8_t attr, uint8_t number,
uint8_t *values, void *user_data);
int (*get_value) (struct avrcp *session, uint8_t transaction,
uint8_t number, uint8_t *attrs,
void *user_data);
int (*set_value) (struct avrcp *session, uint8_t transaction,
uint8_t number, uint8_t *attrs,
void *user_data);
int (*get_play_status) (struct avrcp *session, uint8_t transaction,
void *user_data);
};
struct avrcp_control_cfm {
};
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_register_player(struct avrcp *session,
const struct avrcp_control_ind *ind,
const struct avrcp_control_cfm *cfm,
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);
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