libdivecomputer/src/bluetooth.h
2018-03-04 20:49:49 +01:00

136 lines
4.0 KiB
C

/*
* libdivecomputer
*
* Copyright (C) 2013 Jef Driesen
*
* 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 Street, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
#ifndef DC_BLUETOOTH_H
#define DC_BLUETOOTH_H
#include <libdivecomputer/common.h>
#include <libdivecomputer/context.h>
#include <libdivecomputer/iostream.h>
#include <libdivecomputer/iterator.h>
#include <libdivecomputer/descriptor.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/**
* The minimum number of bytes (including the terminating null byte) for
* formatting a bluetooth address as a string.
*/
#define DC_BLUETOOTH_SIZE 18
/**
* Bluetooth address (48 bits).
*/
#if defined (_WIN32) && !defined (__GNUC__)
typedef unsigned __int64 dc_bluetooth_address_t;
#else
typedef unsigned long long dc_bluetooth_address_t;
#endif
/**
* Convert a bluetooth address to a string.
*
* The bluetooth address is formatted as XX:XX:XX:XX:XX:XX, where each
* XX is a hexadecimal number specifying an octet of the 48-bit address.
* The minimum size for the buffer is #DC_BLUETOOTH_SIZE bytes.
*
* @param[in] address A bluetooth address.
* @param[in] str The memory buffer to store the result.
* @param[in] size The size of the memory buffer.
* @returns The null-terminated string on success, or NULL on failure.
*/
char *
dc_bluetooth_addr2str(dc_bluetooth_address_t address, char *str, size_t size);
/**
* Convert a string to a bluetooth address.
*
* The string is expected to be in the format XX:XX:XX:XX:XX:XX, where
* each XX is a hexadecimal number specifying an octet of the 48-bit
* address.
*
* @param[in] address A null-terminated string.
* @returns The bluetooth address on success, or zero on failure.
*/
dc_bluetooth_address_t
dc_bluetooth_str2addr(const char *address);
/**
* Opaque object representing a bluetooth device.
*/
typedef struct dc_bluetooth_device_t dc_bluetooth_device_t;
/**
* Get the address of the bluetooth device.
*
* @param[in] device A valid bluetooth device.
*/
dc_bluetooth_address_t
dc_bluetooth_device_get_address (dc_bluetooth_device_t *device);
/**
* Get the name of the bluetooth device.
*
* @param[in] device A valid bluetooth device.
*/
const char *
dc_bluetooth_device_get_name (dc_bluetooth_device_t *device);
/**
* Destroy the bluetooth device and free all resources.
*
* @param[in] device A valid bluetooth device.
*/
void
dc_bluetooth_device_free (dc_bluetooth_device_t *device);
/**
* Create an iterator to enumerate the bluetooth devices.
*
* @param[out] iterator A location to store the iterator.
* @param[in] context A valid context object.
* @param[in] descriptor A valid device descriptor or NULL.
* @returns #DC_STATUS_SUCCESS on success, or another #dc_status_t code
* on failure.
*/
dc_status_t
dc_bluetooth_iterator_new (dc_iterator_t **iterator, dc_context_t *context, dc_descriptor_t *descriptor);
/**
* Open an bluetooth connection.
*
* @param[out] iostream A location to store the bluetooth connection.
* @param[in] context A valid context object.
* @param[in] address The bluetooth device address.
* @param[in] port The bluetooth port number.
* @returns #DC_STATUS_SUCCESS on success, or another #dc_status_t code
* on failure.
*/
dc_status_t
dc_bluetooth_open (dc_iostream_t **iostream, dc_context_t *context, dc_bluetooth_address_t address, unsigned int port);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* DC_BLUETOOTH_H */