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100 lines
3.0 KiB
C
100 lines
3.0 KiB
C
/*******************************************************************
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Copyright (C) 2009 FreakLabs
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the the copyright holder nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.
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Originally written by Christopher Wang aka Akiba.
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Please post support questions to the FreakLabs forum.
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*******************************************************************/
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#ifndef CHIBI_H
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#define CHIBI_H
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#include "types.h"
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#define CHB_HDR_SZ 9 // FCF + seq + pan_id + dest_addr + src_addr (1 + 2 + 1 + 2 + 2 + 2)
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#define CHB_FCS_LEN 2
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#define CHB_MAX_PAYLOAD 100
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// frame_type = data
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// security enabled = false
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// frame pending = false
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// ack request = false
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// pan ID compression = true
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#define CHB_FCF_BYTE_0 0x41
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// dest addr = 16-bit
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// frame version = 802.15.4 (not 2003)
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// src addr = 16-bit
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#define CHB_FCF_BYTE_1 0x98
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#define CHB_ACK_REQ_POS 5
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enum
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{
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CHB_SUCCESS = 0,
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CHB_SUCCESS_DATA_PENDING = 1,
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CHB_CHANNEL_ACCESS_FAILURE = 3,
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CHB_NO_ACK = 5,
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CHB_INVALID = 7
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};
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// Chibi Protocol control block
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typedef struct
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{
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U16 src_addr;
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U8 seq;
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volatile bool data_rcv;
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volatile bool tx_end;
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// stats
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U16 rcvd_xfers;
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U16 txd_success;
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U16 txd_noack;
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U16 txd_channel_fail;
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U16 underrun;
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U8 battlow;
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U8 ed;
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U8 crc;
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} chb_pcb_t;
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typedef struct
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{
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U8 len;
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U16 src_addr;
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U16 dest_addr;
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U8 data[CHB_MAX_PAYLOAD];
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} chb_rx_data_t;
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void chb_init();
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chb_pcb_t *chb_get_pcb();
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U8 chb_write(U16 addr, U8 *data, U8 len);
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U8 chb_read(chb_rx_data_t *rx);
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#endif
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