/* * *  BlueZ - Bluetooth protocol stack for Linux * *  Copyright (C) 2001-2002  Wayne Lee <waynelee@qualcomm.com> *  Copyright (C) 2003-2005  Marcel Holtmann <marcel@holtmann.org> * * *  This program is free software; you can redistribute it and/or modify *  it under the terms of the GNU General Public License as published by *  the Free Software Foundation; either version 2 of the License, or *  (at your option) any later version. * *  This program 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 General Public License for more details. * *  You should have received a copy of the GNU General Public License *  along with this program; if not, write to the Free Software *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA * */#ifndef __RFCOMM_H#define __RFCOMM_H#include <endian.h>#define RFCOMM_PSM 3#define TRUE  1#define FALSE 0#define RFCOMM_MAX_CONN 10#define BT_NBR_DATAPORTS RFCOMM_MAX_CONN#define GET_BIT(pos,bitfield) ((bitfield[(pos)/32]) & (1 << ((pos) % 32)))#define SET_BIT(pos,bitfield) ((bitfield[(pos)/32]) |= (1 << ((pos) % 32))) #define CLR_BIT(pos,bitfield) ((bitfield[(pos)/32]) &= ((1 << ((pos) % 32)) ^ (~0)))/* Sets the P/F-bit in the control field */#define SET_PF(ctr) ((ctr) | (1 << 4)) /* Clears the P/F-bit in the control field */#define CLR_PF(ctr) ((ctr) & 0xef)/* Returns the P/F-bit */#define GET_PF(ctr) (((ctr) >> 4) & 0x1)#define MIN(a, b) (((a) < (b)) ? (a) : (b))/* Endian-swapping macros for structs */#define swap_long_frame(x) ((x)->h.length.val = le16_to_cpu((x)->h.length.val))#define swap_mcc_long_frame(x) (swap_long_frame(x))/* Used for UIH packets */#define SHORT_CRC_CHECK 2/* Used for all packet exepts for the UIH packets */#define LONG_CRC_CHECK 3/* Short header for short UIH packets */#define SHORT_HDR 2/* Long header for long UIH packets */#define LONG_HDR 3/* FIXME: Should this one be defined here? */#define SHORT_PAYLOAD_SIZE 127/* Used for setting the EA field in different packets, really neccessary? */#define EA 1/* Yes the FCS size is only one byte */#define FCS_SIZE 1#define RFCOMM_MAX_HDR_SIZE 5#define MAX_CREDITS   30#define START_CREDITS 7#define MIN_CREDITS   6#define DEF_RFCOMM_MTU 127/* The values in the control field when sending ordinary rfcomm packets */#define SABM 0x2f	/* set asynchronous balanced mode */#define UA   0x63	/* unnumbered acknolodgement */#define DM   0x0f	/* disconnected mode */#define DISC 0x43	/* disconnect */#define UIH  0xef	/* unnumbered information with header check (only) */#define UI   0x03	/* unnumbered information (with all data check) */#define SABM_SIZE 4#define UA_SIZE   4/* The values in the type field in a multiplexer command packet */#define PN    (0x80 >> 2)	/* parameter negotiation */#define PSC   (0x40 >> 2)	/* power saving control */#define CLD   (0xc0 >> 2)	/* close down */#define TEST  (0x20 >> 2)	/* test */#define FCON  (0xa0 >> 2)	/* flow control on */#define FCOFF (0x60 >> 2)	/* flow control off */#define MSC   (0xe0 >> 2)	/* modem status command */#define NSC   (0x10 >> 2)	/* not supported command response */#define RPN   (0x90 >> 2)	/* remote port negotiation */#define RLS   (0x50 >> 2)	/* remote line status */#define SNC   (0xd0 >> 2)	/* service negotiation command *//* Define of some V.24 signals modem control signals in RFCOMM */#define DV  0x80	/* data valid */#define IC  0x40	/* incoming call */#define RTR 0x08	/* ready to receive */#define RTC 0x04	/* ready to communicate */#define FC  0x02	/* flow control (unable to accept frames) */#define CTRL_CHAN 0	/* The control channel is defined as DLCI 0 in rfcomm */#define MCC_CMD 1	 /* Multiplexer command */#define MCC_RSP 0	 /* Multiplexer response */#if __BYTE_ORDER == __LITTLE_ENDIANtypedef struct parameter_mask {	uint8_t bit_rate:1;	uint8_t data_bits:1;	uint8_t stop_bit:1;	uint8_t parity:1;	uint8_t parity_type:1;	uint8_t xon:1;	uint8_t xoff:1;	uint8_t res1:1;	uint8_t xon_input:1;	uint8_t xon_output:1;	uint8_t rtr_input:1;	uint8_t rtr_output:1;	uint8_t rtc_input:1;	uint8_t rtc_output:1;	uint8_t res2:2;} __attribute__ ((packed)) parameter_mask;typedef struct rpn_values {	uint8_t bit_rate;	uint8_t data_bits:2;	uint8_t stop_bit:1;	uint8_t parity:1;	uint8_t parity_type:2;	uint8_t res1:2;	uint8_t xon_input:1;	uint8_t xon_output:1;	uint8_t rtr_input:1;	uint8_t rtr_output:1;	uint8_t rtc_input:1;	uint8_t rtc_output:1;	uint8_t res2:2;	uint8_t xon;	uint8_t xoff;	uint16_t pm;	//parameter_mask pm;} __attribute__ ((packed)) rpn_values;#elif __BYTE_ORDER == __BIG_ENDIANtypedef struct parameter_mask {	uint8_t res1:1;	uint8_t xoff:1;	uint8_t xon:1;	uint8_t parity_type:1;	uint8_t parity:1;	uint8_t stop_bit:1;	uint8_t data_bits:1;	uint8_t bit_rate:1;	uint8_t res2:2;	uint8_t rtc_output:1;	uint8_t rtc_input:1;	uint8_t rtr_output:1;	uint8_t rtr_input:1;	uint8_t xon_output:1;	uint8_t xon_input:1;} __attribute__ ((packed)) parameter_mask;typedef struct rpn_values {	uint8_t bit_rate;	uint8_t res1:2;	uint8_t parity_type:2;	uint8_t parity:1;	uint8_t stop_bit:1;	uint8_t data_bits:2;	uint8_t res2:2;	uint8_t rtc_output:1;	uint8_t rtc_input:1;	uint8_t rtr_output:1;	uint8_t rtr_input:1;	uint8_t xon_output:1;	uint8_t xon_input:1;	uint8_t xon;	uint8_t xoff;	uint16_t pm;	//parameter_mask pm;} __attribute__ ((packed)) rpn_values;#else#error "Unknown byte order"#endif/* Typedefinitions of stuctures used for creating and parsing packets, for a * further description of the structures please se the bluetooth core * specification part F:1 and the ETSI TS 07.10 specification  */#if __BYTE_ORDER == __LITTLE_ENDIANtypedef struct address_field {	uint8_t ea:1;	uint8_t cr:1;	uint8_t d:1;	uint8_t server_chn:5;} __attribute__ ((packed)) address_field;typedef struct short_length {	uint8_t ea:1;	uint8_t len:7;} __attribute__ ((packed)) short_length;typedef union long_length {	struct bits {		uint8_t ea:1;		unsigned short len:15;	} __attribute__ ((packed)) bits ;	uint16_t val ;} __attribute__ ((packed)) long_length;typedef struct short_frame_head {	address_field addr;	uint8_t control;	short_length length;} __attribute__ ((packed)) short_frame_head;typedef struct short_frame {	short_frame_head h;	uint8_t data[0]; } __attribute__ ((packed)) short_frame;typedef struct long_frame_head {	address_field addr;	uint8_t control;	long_length length;	uint8_t data[0];} __attribute__ ((packed)) long_frame_head;typedef struct long_frame {	long_frame_head h;	uint8_t data[0];} __attribute__ ((packed)) long_frame;/* Typedefinitions for structures used for the multiplexer commands */typedef struct mcc_type {	uint8_t ea:1;	uint8_t cr:1;	uint8_t type:6;} __attribute__ ((packed)) mcc_type;typedef struct mcc_short_frame_head {	mcc_type type;	short_length length;	uint8_t value[0];} __attribute__ ((packed)) mcc_short_frame_head;typedef struct mcc_short_frame {	mcc_short_frame_head h;	uint8_t value[0];} __attribute__ ((packed)) mcc_short_frame;typedef struct mcc_long_frame_head {	mcc_type type;	long_length length;	uint8_t value[0];} __attribute__ ((packed)) mcc_long_frame_head;typedef struct mcc_long_frame {	mcc_long_frame_head h;	uint8_t value[0];} __attribute__ ((packed)) mcc_long_frame;/* MSC-command */typedef struct v24_signals {	uint8_t ea:1;	uint8_t fc:1;	uint8_t rtc:1;	uint8_t rtr:1;	uint8_t reserved:2;	uint8_t ic:1;	uint8_t dv:1;} __attribute__ ((packed)) v24_signals;typedef struct break_signals {	uint8_t ea:1;	uint8_t b1:1;	uint8_t b2:1;	uint8_t b3:1;	uint8_t len:4;} __attribute__ ((packed)) break_signals;typedef struct msc_msg {	short_frame_head s_head;	mcc_short_frame_head mcc_s_head;	address_field dlci;	v24_signals v24_sigs;	//break_signals break_sigs;	uint8_t fcs;} __attribute__ ((packed)) msc_msg;typedef struct rpn_msg {	short_frame_head s_head;	mcc_short_frame_head mcc_s_head;	address_field dlci;	rpn_values rpn_val;	uint8_t fcs;} __attribute__ ((packed)) rpn_msg;/* RLS-command */  typedef struct rls_msg {	short_frame_head s_head;	mcc_short_frame_head mcc_s_head;	address_field dlci;	uint8_t error:4;	uint8_t res:4;	uint8_t fcs;} __attribute__ ((packed)) rls_msg;/* PN-command */typedef struct pn_msg {	short_frame_head s_head;	mcc_short_frame_head mcc_s_head;/* The res1, res2 and res3 values have to be set to 0 by the sender */	uint8_t dlci:6;	uint8_t res1:2;	uint8_t frame_type:4;	uint8_t credit_flow:4;	uint8_t prior:6;	uint8_t res2:2;	uint8_t ack_timer;	uint16_t frame_size:16;	uint8_t max_nbrof_retrans;	uint8_t credits;	uint8_t fcs;} __attribute__ ((packed)) pn_msg;/* NSC-command */typedef struct nsc_msg {	short_frame_head s_head;	mcc_short_frame_head mcc_s_head;	mcc_type command_type;	uint8_t fcs;} __attribute__ ((packed)) nsc_msg;#elif __BYTE_ORDER == __BIG_ENDIANtypedef struct address_field {	uint8_t server_chn:5;	uint8_t d:1;	uint8_t cr:1;	uint8_t ea:1;} __attribute__ ((packed)) address_field;typedef struct short_length {	uint8_t len:7;	uint8_t ea:1;} __attribute__ ((packed)) short_length;typedef union long_length {	struct bits {		unsigned short len:15;		uint8_t ea:1;	} __attribute__ ((packed)) bits;	uint16_t val;} __attribute__ ((packed)) long_length;typedef struct short_frame_head {	address_field addr;	uint8_t control;	short_length length;} __attribute__ ((packed)) short_frame_head;typedef struct short_frame {	short_frame_head h;	uint8_t data[0];} __attribute__ ((packed)) short_frame;typedef struct long_frame_head {	address_field addr;	uint8_t control;	long_length length;	uint8_t data[0];} __attribute__ ((packed)) long_frame_head;typedef struct long_frame {	long_frame_head h;	uint8_t data[0];} __attribute__ ((packed)) long_frame;typedef struct mcc_type {	uint8_t type:6;	uint8_t cr:1;	uint8_t ea:1;} __attribute__ ((packed)) mcc_type;typedef struct mcc_short_frame_head {	mcc_type type;	short_length length;	uint8_t value[0];} __attribute__ ((packed)) mcc_short_frame_head;typedef struct mcc_short_frame {	mcc_short_frame_head h;	uint8_t value[0];} __attribute__ ((packed)) mcc_short_frame;typedef struct mcc_long_frame_head {	mcc_type type;	long_length length;	uint8_t value[0];} __attribute__ ((packed)) mcc_long_frame_head;typedef struct mcc_long_frame {	mcc_long_frame_head h;	uint8_t value[0];} __attribute__ ((packed)) mcc_long_frame;typedef struct v24_signals {	uint8_t dv:1;	uint8_t ic:1;	uint8_t reserved:2;	uint8_t rtr:1;	uint8_t rtc:1;	uint8_t fc:1;	uint8_t ea:1;} __attribute__ ((packed)) v24_signals;typedef struct break_signals {	uint8_t len:4;	uint8_t b3:1;	uint8_t b2:1;	uint8_t b1:1;	uint8_t ea:1;} __attribute__ ((packed)) break_signals;typedef struct msc_msg {	short_frame_head s_head;	mcc_short_frame_head mcc_s_head;	address_field dlci;	v24_signals v24_sigs;	//break_signals break_sigs;	uint8_t fcs;} __attribute__ ((packed)) msc_msg;typedef struct rpn_msg {	short_frame_head s_head;	mcc_short_frame_head mcc_s_head;	address_field dlci;	rpn_values rpn_val;	uint8_t fcs;} __attribute__ ((packed)) rpn_msg;typedef struct rls_msg {	short_frame_head s_head;	mcc_short_frame_head mcc_s_head;	address_field dlci;	uint8_t res:4;	uint8_t error:4;	uint8_t fcs;} __attribute__ ((packed)) rls_msg;typedef struct pn_msg {	short_frame_head s_head;	mcc_short_frame_head mcc_s_head;	uint8_t res1:2;	uint8_t dlci:6;	uint8_t credit_flow:4;	uint8_t frame_type:4;	uint8_t res2:2;	uint8_t prior:6;	uint8_t ack_timer;	uint16_t frame_size:16;	uint8_t max_nbrof_retrans;	uint8_t credits;	uint8_t fcs;} __attribute__ ((packed)) pn_msg;typedef struct nsc_msg {	short_frame_head s_head;	mcc_short_frame_head mcc_s_head;	mcc_type command_type;	uint8_t fcs;} __attribute__ ((packed)) nsc_msg;#else#error "Unknown byte order"#error Processor endianness unknown!#endif#endif /* __RFCOMM_H */