mirror of
https://git.kernel.org/pub/scm/bluetooth/bluez.git
synced 2024-11-28 14:44:39 +08:00
3d9fc0e100
This adds explicit typecasts to an inline function to make it C++
compatible. What follows is a sample error message from g++ when
compiling without this patch.
/usr/include/bluetooth/bluetooth.h:
In function 'void bswap_128(const void*, void*)':
/usr/include/bluetooth/bluetooth.h:348:21:
error: invalid conversion from 'const void*' to 'const uint8_t*
{aka const unsigned char*}' [-fpermissive]
const uint8_t *s = src;
404 lines
9.2 KiB
C
404 lines
9.2 KiB
C
/*
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*
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* BlueZ - Bluetooth protocol stack for Linux
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*
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* Copyright (C) 2000-2001 Qualcomm Incorporated
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* Copyright (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com>
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* Copyright (C) 2002-2010 Marcel Holtmann <marcel@holtmann.org>
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*
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifndef __BLUETOOTH_H
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#define __BLUETOOTH_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <endian.h>
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#include <byteswap.h>
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#include <netinet/in.h>
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#ifndef AF_BLUETOOTH
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#define AF_BLUETOOTH 31
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#define PF_BLUETOOTH AF_BLUETOOTH
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#endif
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#define BTPROTO_L2CAP 0
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#define BTPROTO_HCI 1
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#define BTPROTO_SCO 2
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#define BTPROTO_RFCOMM 3
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#define BTPROTO_BNEP 4
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#define BTPROTO_CMTP 5
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#define BTPROTO_HIDP 6
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#define BTPROTO_AVDTP 7
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#define SOL_HCI 0
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#define SOL_L2CAP 6
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#define SOL_SCO 17
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#define SOL_RFCOMM 18
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#ifndef SOL_BLUETOOTH
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#define SOL_BLUETOOTH 274
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#endif
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#define BT_SECURITY 4
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struct bt_security {
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uint8_t level;
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uint8_t key_size;
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};
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#define BT_SECURITY_SDP 0
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#define BT_SECURITY_LOW 1
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#define BT_SECURITY_MEDIUM 2
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#define BT_SECURITY_HIGH 3
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#define BT_DEFER_SETUP 7
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#define BT_FLUSHABLE 8
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#define BT_FLUSHABLE_OFF 0
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#define BT_FLUSHABLE_ON 1
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#define BT_POWER 9
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struct bt_power {
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uint8_t force_active;
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};
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#define BT_POWER_FORCE_ACTIVE_OFF 0
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#define BT_POWER_FORCE_ACTIVE_ON 1
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#define BT_CHANNEL_POLICY 10
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/* BR/EDR only (default policy)
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* AMP controllers cannot be used.
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* Channel move requests from the remote device are denied.
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* If the L2CAP channel is currently using AMP, move the channel to BR/EDR.
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*/
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#define BT_CHANNEL_POLICY_BREDR_ONLY 0
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/* BR/EDR Preferred
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* Allow use of AMP controllers.
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* If the L2CAP channel is currently on AMP, move it to BR/EDR.
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* Channel move requests from the remote device are allowed.
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*/
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#define BT_CHANNEL_POLICY_BREDR_PREFERRED 1
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/* AMP Preferred
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* Allow use of AMP controllers
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* If the L2CAP channel is currently on BR/EDR and AMP controller
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* resources are available, initiate a channel move to AMP.
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* Channel move requests from the remote device are allowed.
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* If the L2CAP socket has not been connected yet, try to create
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* and configure the channel directly on an AMP controller rather
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* than BR/EDR.
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*/
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#define BT_CHANNEL_POLICY_AMP_PREFERRED 2
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#define BT_VOICE 11
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struct bt_voice {
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uint16_t setting;
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};
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#define BT_SNDMTU 12
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#define BT_RCVMTU 13
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#define BT_VOICE_TRANSPARENT 0x0003
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#define BT_VOICE_CVSD_16BIT 0x0060
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/* Connection and socket states */
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enum {
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BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
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BT_OPEN,
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BT_BOUND,
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BT_LISTEN,
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BT_CONNECT,
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BT_CONNECT2,
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BT_CONFIG,
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BT_DISCONN,
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BT_CLOSED
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};
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/* Byte order conversions */
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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#define htobs(d) (d)
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#define htobl(d) (d)
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#define htobll(d) (d)
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#define btohs(d) (d)
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#define btohl(d) (d)
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#define btohll(d) (d)
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#elif __BYTE_ORDER == __BIG_ENDIAN
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#define htobs(d) bswap_16(d)
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#define htobl(d) bswap_32(d)
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#define htobll(d) bswap_64(d)
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#define btohs(d) bswap_16(d)
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#define btohl(d) bswap_32(d)
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#define btohll(d) bswap_64(d)
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#else
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#error "Unknown byte order"
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#endif
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/* Bluetooth unaligned access */
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#define bt_get_unaligned(ptr) \
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__extension__ ({ \
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struct __attribute__((packed)) { \
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__typeof__(*(ptr)) __v; \
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} *__p = (__typeof__(__p)) (ptr); \
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__p->__v; \
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})
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#define bt_put_unaligned(val, ptr) \
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do { \
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struct __attribute__((packed)) { \
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__typeof__(*(ptr)) __v; \
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} *__p = (__typeof__(__p)) (ptr); \
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__p->__v = (val); \
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} while(0)
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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static inline uint64_t bt_get_le64(const void *ptr)
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{
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return bt_get_unaligned((const uint64_t *) ptr);
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}
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static inline uint64_t bt_get_be64(const void *ptr)
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{
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return bswap_64(bt_get_unaligned((const uint64_t *) ptr));
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}
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static inline uint32_t bt_get_le32(const void *ptr)
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{
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return bt_get_unaligned((const uint32_t *) ptr);
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}
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static inline uint32_t bt_get_be32(const void *ptr)
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{
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return bswap_32(bt_get_unaligned((const uint32_t *) ptr));
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}
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static inline uint16_t bt_get_le16(const void *ptr)
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{
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return bt_get_unaligned((const uint16_t *) ptr);
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}
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static inline uint16_t bt_get_be16(const void *ptr)
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{
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return bswap_16(bt_get_unaligned((const uint16_t *) ptr));
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}
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static inline void bt_put_le64(uint64_t val, const void *ptr)
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{
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bt_put_unaligned(val, (uint64_t *) ptr);
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}
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static inline void bt_put_be64(uint64_t val, const void *ptr)
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{
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bt_put_unaligned(bswap_64(val), (uint64_t *) ptr);
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}
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static inline void bt_put_le32(uint32_t val, const void *ptr)
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{
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bt_put_unaligned(val, (uint32_t *) ptr);
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}
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static inline void bt_put_be32(uint32_t val, const void *ptr)
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{
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bt_put_unaligned(bswap_32(val), (uint32_t *) ptr);
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}
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static inline void bt_put_le16(uint16_t val, const void *ptr)
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{
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bt_put_unaligned(val, (uint16_t *) ptr);
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}
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static inline void bt_put_be16(uint16_t val, const void *ptr)
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{
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bt_put_unaligned(bswap_16(val), (uint16_t *) ptr);
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}
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#elif __BYTE_ORDER == __BIG_ENDIAN
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static inline uint64_t bt_get_le64(const void *ptr)
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{
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return bswap_64(bt_get_unaligned((const uint64_t *) ptr));
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}
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static inline uint64_t bt_get_be64(const void *ptr)
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{
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return bt_get_unaligned((const uint64_t *) ptr);
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}
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static inline uint32_t bt_get_le32(const void *ptr)
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{
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return bswap_32(bt_get_unaligned((const uint32_t *) ptr));
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}
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static inline uint32_t bt_get_be32(const void *ptr)
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{
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return bt_get_unaligned((const uint32_t *) ptr);
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}
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static inline uint16_t bt_get_le16(const void *ptr)
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{
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return bswap_16(bt_get_unaligned((const uint16_t *) ptr));
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}
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static inline uint16_t bt_get_be16(const void *ptr)
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{
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return bt_get_unaligned((const uint16_t *) ptr);
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}
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static inline void bt_put_le64(uint64_t val, const void *ptr)
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{
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bt_put_unaligned(bswap_64(val), (uint64_t *) ptr);
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}
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static inline void bt_put_be64(uint64_t val, const void *ptr)
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{
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bt_put_unaligned(val, (uint64_t *) ptr);
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}
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static inline void bt_put_le32(uint32_t val, const void *ptr)
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{
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bt_put_unaligned(bswap_32(val), (uint32_t *) ptr);
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}
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static inline void bt_put_be32(uint32_t val, const void *ptr)
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{
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bt_put_unaligned(val, (uint32_t *) ptr);
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}
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static inline void bt_put_le16(uint16_t val, const void *ptr)
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{
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bt_put_unaligned(bswap_16(val), (uint16_t *) ptr);
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}
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static inline void bt_put_be16(uint16_t val, const void *ptr)
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{
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bt_put_unaligned(val, (uint16_t *) ptr);
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}
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#else
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#error "Unknown byte order"
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#endif
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/* BD Address */
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typedef struct {
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uint8_t b[6];
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} __attribute__((packed)) bdaddr_t;
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/* BD Address type */
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#define BDADDR_BREDR 0x00
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#define BDADDR_LE_PUBLIC 0x01
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#define BDADDR_LE_RANDOM 0x02
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#define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
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#define BDADDR_ALL (&(bdaddr_t) {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff}})
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#define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff}})
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/* Copy, swap, convert BD Address */
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static inline int bacmp(const bdaddr_t *ba1, const bdaddr_t *ba2)
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{
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return memcmp(ba1, ba2, sizeof(bdaddr_t));
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}
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static inline void bacpy(bdaddr_t *dst, const bdaddr_t *src)
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{
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memcpy(dst, src, sizeof(bdaddr_t));
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}
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void baswap(bdaddr_t *dst, const bdaddr_t *src);
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bdaddr_t *strtoba(const char *str);
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char *batostr(const bdaddr_t *ba);
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int ba2str(const bdaddr_t *ba, char *str);
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int str2ba(const char *str, bdaddr_t *ba);
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int ba2oui(const bdaddr_t *ba, char *oui);
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int bachk(const char *str);
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int baprintf(const char *format, ...);
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int bafprintf(FILE *stream, const char *format, ...);
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int basprintf(char *str, const char *format, ...);
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int basnprintf(char *str, size_t size, const char *format, ...);
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void *bt_malloc(size_t size);
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void bt_free(void *ptr);
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int bt_error(uint16_t code);
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const char *bt_compidtostr(int id);
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typedef struct {
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uint8_t data[16];
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} uint128_t;
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static inline void bswap_128(const void *src, void *dst)
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{
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const uint8_t *s = (const uint8_t *) src;
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uint8_t *d = (uint8_t *) dst;
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int i;
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for (i = 0; i < 16; i++)
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d[15 - i] = s[i];
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}
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#if __BYTE_ORDER == __BIG_ENDIAN
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#define ntoh64(x) (x)
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static inline void ntoh128(const uint128_t *src, uint128_t *dst)
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{
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memcpy(dst, src, sizeof(uint128_t));
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}
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static inline void btoh128(const uint128_t *src, uint128_t *dst)
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{
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bswap_128(src, dst);
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}
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#else
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static inline uint64_t ntoh64(uint64_t n)
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{
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uint64_t h;
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uint64_t tmp = ntohl(n & 0x00000000ffffffff);
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h = ntohl(n >> 32);
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h |= tmp << 32;
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return h;
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}
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static inline void ntoh128(const uint128_t *src, uint128_t *dst)
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{
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bswap_128(src, dst);
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}
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static inline void btoh128(const uint128_t *src, uint128_t *dst)
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{
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memcpy(dst, src, sizeof(uint128_t));
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}
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#endif
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#define hton64(x) ntoh64(x)
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#define hton128(x, y) ntoh128(x, y)
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#define htob128(x, y) btoh128(x, y)
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#ifdef __cplusplus
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}
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#endif
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#endif /* __BLUETOOTH_H */
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