129 lines
4.6 KiB
C
129 lines
4.6 KiB
C
/*
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* Copyright (c) 2010, Loughborough University - Computer Science
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* All rights reserved.
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*
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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 Institute 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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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE 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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*
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* This file is part of the Contiki operating system.
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*/
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/**
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* \file
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* Header file for the Disco server
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* (embedded part of the DISCOBALL project)
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*
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* \author
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* George Oikonomou - <oikonomou@users.sourceforge.net>
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*/
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#ifndef DISCO_H_
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#define DISCO_H_
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#include "contiki.h"
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#include "contiki-net.h"
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/*---------------------------------------------------------------------------*/
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#define DISCO_UDP_PORT 60002
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#define DISCO_DESCRIPTORS_LOC /* In external Flash */
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#define DATA_CHUNK_LEN 64
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/* Intervals - Timeouts */
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#define DISCO_TIMEOUT_PREPARE (CLOCK_SECOND / 2)
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#define DISCO_TIMEOUT_ABORT (CLOCK_SECOND * 10)
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#define DISCO_TIMEOUT_REBOOT CLOCK_SECOND
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/* Disco State Machine */
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#define DISCO_STATE_LISTENING 0x00 /* Waiting for a transaction to start */
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#define DISCO_STATE_PREPARING 0x01 /* Erasing Sectors */
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#define DISCO_STATE_READY 0x02
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#define DISCO_STATE_REBOOTING 0x03 /* Reboot to BooTTY and copy new image */
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/* Instructions */
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#define DISCO_CMD_INIT 0x00 /* Prepare flash area for writes */
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#define DISCO_CMD_SWITCH 0x01 /* Copy image from ext. to int. flash */
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#define DISCO_CMD_WRITE 0x02 /* Write Image to Ext Flash */
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#define DISCO_CMD_DONE 0x03 /* All Done */
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/* Error Codes */
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#define DISCO_ERR_GENERIC 0xFF /* Generic Error */
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#define DISCO_ERR_BAD_LEN 0xFE /* Incorrect Length */
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#define DISCO_ERR_NOT_READY 0xFD /* Not Initialised */
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#define DISCO_ERR_BAD_OFFSET 0xFC /* Bad Offset */
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#define DISCO_ERR_PROTECTED 0xFB /* Target sector is protected */
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#define DISCO_ERR_INIT_DONE 0xFA /* Already Initialized */
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/* Message Sizes */
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#define DISCO_FLEN_CMD 1
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#define DISCO_FLEN_IMG 1
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#define DISCO_FLEN_ADDR 3
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#define DISCO_FLEN_DATA 64
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/* Request Lengths */
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#define DISCO_LEN_INIT (DISCO_FLEN_CMD + DISCO_FLEN_IMG)
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#define DISCO_LEN_DONE DISCO_FLEN_CMD
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#define DISCO_LEN_WRITE (DISCO_FLEN_CMD + DISCO_FLEN_ADDR + DISCO_FLEN_DATA)
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#define DISCO_LEN_SWITCH (DISCO_FLEN_CMD + DISCO_FLEN_IMG)
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/* Response Lengths */
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#define DISCO_RESPONSE_NONE 0
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#define DISCO_RESP_LEN_ERR DISCO_FLEN_CMD
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#define DISCO_RESP_LEN_INIT DISCO_FLEN_CMD
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#define DISCO_RESP_LEN_DONE DISCO_FLEN_CMD
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#define DISCO_RESP_LEN_WRITE (DISCO_FLEN_CMD + DISCO_FLEN_ADDR)
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#define DISCO_RESP_LEN_SWITCH (DISCO_FLEN_CMD + DISCO_FLEN_IMG)
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/* Tell BooTTy! what to do after we jump:
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* BOOTY_CMD
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* [7:5]: Command
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* [5:4]: Reserved
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* [4:0]: Image number
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*/
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#define BOOTTY_CMD_LOCATION 0xFEFF
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#define BOOTTY_CMD_JUMP_TO_APP 0x80
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#define BOOTTY_CMD_COPY_IMAGE 0x40
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#define SECTOR_UNPROTECTED 0
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#define SECTOR_PROTECTED 1
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/*---------------------------------------------------------------------------*/
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PROCESS_NAME(disco_process);
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/*---------------------------------------------------------------------------*/
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struct disco_request_pdu {
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uint8_t cmd;
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uint8_t addr[3];
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uint8_t data[DATA_CHUNK_LEN];
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};
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struct disco_response_pdu {
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uint8_t status;
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uint8_t addr[3];
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};
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struct disco_seed {
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uip_ipaddr_t addr;
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uint16_t port;
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};
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/*---------------------------------------------------------------------------*/
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#endif /* DISCO_H_ */
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