include/hardware/bt_sock.h

/*
 * 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_SOCK_H
#define ANDROID_INCLUDE_BT_SOCK_H

__BEGIN_DECLS

#define BTSOCK_FLAG_ENCRYPT   (1)
#define BTSOCK_FLAG_AUTH      (1 << 1)
#define BTSOCK_FLAG_AUTH_HIGH (1 << 2)

typedef enum {
    BTSOCK_RFCOMM = 1,
    BTSOCK_SCO = 2,
    BTSOCK_L2CAP = 3
} btsock_type_t;

typedef enum {
    BTSOCK_OPT_GET_MODEM_BITS = 1,
    BTSOCK_OPT_SET_MODEM_BITS = 2,
    BTSOCK_OPT_CLR_MODEM_BITS = 3,
    BTSOCK_OPT_SET_PUT_MTU    = 4,
    BTSOCK_OPT_GET_CONG_STATUS = 5
} btsock_option_type_t;

/** Represents the standard BT SOCKET interface. */
typedef struct {
    short size;
    bt_bdaddr_t bd_addr;
    int channel;
    int status;
} __attribute__((packed)) sock_connect_signal_t;

typedef struct {

    /** set to size of this struct*/
    size_t          size;
    /**
     * listen to a rfcomm uuid or channel. It returns the socket fd from which
     * btsock_connect_signal can be read out when a remote device connected
     */
    bt_status_t (*listen)(btsock_type_t type, const char* service_name, const uint8_t* service_uuid, int channel, int* sock_fd, int flags);
    /*
     * connect to a rfcomm uuid channel of remote device, It returns the socket fd from which
     * the btsock_connect_signal and a new socket fd to be accepted can be read out when connected
     */
    bt_status_t (*connect)(const bt_bdaddr_t *bd_addr, btsock_type_t type, const uint8_t* uuid, int channel, int* sock_fd, int flags);
    /*
     * get socket option of rfcomm channel socket.
     */
    bt_status_t (*get_sock_opt)(btsock_type_t type, int channel, btsock_option_type_t option_name, void *option_value, int *option_len);
    /*
     * set socket option of rfcomm channel socket.
     */
    bt_status_t (*set_sock_opt)(btsock_type_t type, int channel, btsock_option_type_t option_name, void *option_value, int option_len);


} btsock_interface_t;

__END_DECLS

#endif /* ANDROID_INCLUDE_BT_SOCK_H */