/* * * BlueZ - Bluetooth protocol stack for Linux * * Copyright (C) 2001-2002 Wayne Lee * Copyright (C) 2003-2011 Marcel Holtmann * * * 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 #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_ENDIAN typedef 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_ENDIAN typedef 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_ENDIAN typedef 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_ENDIAN typedef 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 */