contiki/cpu/avr/radio/mac/mac.c

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2008-10-14 18:36:07 +00:00
/* Copyright (c) 2008, Swedish Institute of Computer Science
* All rights reserved.
*
* Additional fixes for AVR contributed by:
*
* Colin O'Flynn coflynn@newae.com
* Eric Gnoske egnoske@gmail.com
* Blake Leverett bleverett@gmail.com
* Mike Vidales mavida404@gmail.com
* Kevin Brown kbrown3@uccs.edu
* Nate Bohlmann nate@elfwerks.com
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of the copyright holders nor the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
**/
/**
* \addtogroup wireless
* @{
*/
/**
* \defgroup rf230mac RF230 MAC
* @{
*/
/**
* \file
* \brief The IEEE 802.15.4 (2003/2006) MAC utility functions.
*
*/
/**
* \author
* Eric Gnoske <egnoske@gmail.com>
* Blake Leverett <bleverett@gmail.com>
* Mike Vidales <mavida404@gmail.com>
* Colin O'Flynn <coflynn@newae.com>
*
*/
/* Includes */
#include <stdlib.h>
#include <string.h>
#include "zmac.h"
#include "radio.h"
#include "hal.h"
#include "tcpip.h"
#include "uip.h"
#include "sicslowpan.h"
#include "sicslowmac.h"
/* Globals */
/** \brief Interface structure for this module */
ieee_15_4_manager_t ieee15_4ManagerAddress;
//dataRequest_t dataRequestStructAddress;
/* Macros & Defines */
uint8_t msduHandle;
bool iAmCoord;
bool autoModes;
/** \brief The RF channel to use for all following transmissions and
* receptions (see 6.1.2). Allowable values are 0-26
*/
uint8_t phyCurrentChannel;
/** \brief The 64-bit address of the coordinator/router through which
* the network layer wishes to communicate.
*/
uint64_t macCoordExtendedAddress;
/** \brief The 16-bit short address assigned to the coordinator
* through which the network layer wishes to communicate. A value
* of 0xfffe indicates th the coordinator is only using it's 64-bit
* extended address. A value of 0xffff indicates that this value is
* unknown. The default value is 0xfff.
*/
uint16_t macCoordShortAddress;
/** \brief This address is the 64-bit address that will be used as
* the mechanism to provide a destination to the upper layers. The
* default value is 0xfff.
*/
uint64_t macDestAddress;
/** \brief The sequence number (0x00 - 0xff) added to the transmitted
* data or MAC command frame. The default is a random value within
* the range.
*/
uint8_t macDSN;
/** \brief The 16-bit identifier of the PAN on which the device is
* sending to. If this value is 0xffff, the device is not
* associated. The default value is 0xffff.
*/
uint16_t macDstPANId;
/** \brief The 16-bit identifier of the PAN on which the device is
* operating. If this value is 0xffff, the device is not
* associated. The default value is 0xffff.
*/
uint16_t macSrcPANId;
/** \brief The 16-bit address that the device uses to communicate in
* the PAN. If the device is the PAN coordinator, this value shall
* be chosen before a PAN is started. Otherwise, the address is
* allocated by a coordinator during association. A value of 0xfffe
* indicates that the device has associated but has not been
* allocated an address. A value of 0xffff indicates that the
* device does not have a short address. The default value is
* 0xffff.
*/
uint16_t macShortAddress;
/** \brief Our own long address. This needs to be read from EEPROM or
* other secure memory storage.
*/
uint64_t macLongAddr;
/* Implementation */
/** \brief Initializes the (quasi) 802.15.4 MAC. This function should
* be called only once on startup.
*/
void
mac_init(void)
{
volatile uint8_t buf[8];
sicslowmac_resetRequest(true);
/* Set up the radio for auto mode operation. */
hal_subregister_write( SR_MAX_FRAME_RETRIES, 2 );
/* Need to laod PANID for auto modes */
radio_set_pan_id(DEST_PAN_ID);
/* Buffer the uint64_t address for easy loading and debug. */
/** \todo Find a better location to load the IEEE address. */
buf[0] = macLongAddr & 0xFF;
buf[1] = (macLongAddr >> 8) & 0xFF;
buf[2] = (macLongAddr >> 16) & 0xFF;
buf[3] = (macLongAddr >> 24) & 0xFF;
buf[4] = (macLongAddr >> 32) & 0xFF;
buf[5] = (macLongAddr >> 40) & 0xFF;
buf[6] = (macLongAddr >> 48) & 0xFF;
buf[7] = (macLongAddr >> 56) & 0xFF;
/* Load the long address into the radio. This is required for auto mode */
/* operation. */
radio_set_extended_address((uint8_t *)&macLongAddr);
srand(1234 );
msduHandle = rand();
/* Ping6 debug */
memcpy(uip_lladdr.addr, &macLongAddr, 8);
/* Convert expected byte order */
byte_reverse((uint8_t *)uip_lladdr.addr, 8);
}
/** @} */
/** @} */