149 lines
6.4 KiB
C
149 lines
6.4 KiB
C
/****************************************************************************
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* wireless/ieee802154/mac802154_reset.c
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*
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* Copyright (C) 2016 Sebastien Lorquet. All rights reserved.
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* Copyright (C) 2017 Gregory Nutt. All rights reserved.
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* Copyright (C) 2017 Verge Inc. All rights reserved.
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*
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* Author: Sebastien Lorquet <sebastien@lorquet.fr>
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* Author: Gregory Nutt <gnutt@nuttx.org>
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* Author: Anthony Merlino <anthony@vergeaero.com>
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* 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 COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <errno.h>
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#include <debug.h>
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#include <string.h>
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#include "mac802154.h"
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#include "mac802154_internal.h"
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#include <nuttx/wireless/ieee802154/ieee802154_mac.h>
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/****************************************************************************
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* Public MAC Functions
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****************************************************************************/
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/****************************************************************************
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* Name: mac802154_req_reset
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*
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* Description:
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* The MLME-RESET.request primitive allows the next higher layer to request
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* that the MLME performs a reset operation.
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*
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* NOTE: The standard specifies that confirmation should be provided via
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* via the asynchronous MLME-RESET.confirm primitve. However, in our
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* implementation we synchronously return the value immediately. Therefore,
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* we merge the functionality of the MLME-RESET.request and MLME-RESET.confirm
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* primitives together.
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*
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* Input Parameters:
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* mac - Handle to the MAC layer instance
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* resetattr - Whether or not to reset the MAC PIB attributes to defaults
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*
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****************************************************************************/
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int mac802154_req_reset(MACHANDLE mac, bool resetattr)
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{
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FAR struct ieee802154_privmac_s * priv =
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(FAR struct ieee802154_privmac_s *) mac;
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union ieee802154_attr_u attr;
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if (resetattr)
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{
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/* We do not reset the extended address. The extended address must be
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* manually overwritten.
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*/
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priv->radio->reset(priv->radio);
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priv->isassoc = false; /* Not associated with a PAN */
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priv->trackingbeacon = false; /* Not tracking beacon by default */
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priv->sfspec.assocpermit = false; /* Dev (if coord) not accepting assoc */
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priv->autoreq = true; /* Auto send data req if addr in beacon */
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priv->sfspec.ble = false; /* BLE disabled */
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priv->beaconpayloadlength = 0; /* Beacon payload NULL */
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priv->sfspec.beaconorder = 15; /* Non-beacon enabled network */
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priv->sfspec.sforder = 15; /* Length of active portion of outgoing SF */
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priv->beacon_txtime = 0; /* Device never sent a beacon */
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priv->dsn = 0; /* Data sequence number */
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priv->gtspermit = true; /* PAN Coord accepting GTS requests */
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priv->minbe = 3; /* Min value of backoff exponent (BE) */
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priv->maxbe = 5; /* Max value of backoff exponent (BE) */
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priv->max_csmabackoffs = 4; /* Max # of backoffs before failure */
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priv->maxretries = 3; /* Max # of retries allowed after failure */
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priv->promisc = false; /* Device not in promiscuous mode */
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priv->rngsupport = false; /* Ranging not yet supported */
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priv->resp_waittime = 32; /* 32 SF durations */
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priv->sec_enabled = false; /* Security disabled by default */
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priv->tx_totaldur = 0; /* 0 transmit duration */
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priv->trans_persisttime = 0x01F4;
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/* Reset the short address and PAN ID. The extended address does not
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* get reset but must be set at the radio layer again. The only time the
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* MAC layer sets the extended address internally is immediately after
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* this function is called in mac802154_create()
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*/
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priv->addr.mode = IEEE802154_ADDRMODE_EXTENDED;
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mac802154_seteaddr(priv, priv->addr.eaddr);
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mac802154_setsaddr(priv, IEEE802154_SADDR_UNSPEC);
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mac802154_setpanid(priv, IEEE802154_PANID_UNSPEC);
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priv->pandesc.coordaddr.mode = IEEE802154_ADDRMODE_NONE;
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mac802154_setcoordeaddr(priv, IEEE802154_EADDR_UNSPEC);
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mac802154_setcoordsaddr(priv, IEEE802154_SADDR_UNSPEC);
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mac802154_setdevmode(priv, IEEE802154_DEVMODE_ENDPOINT);
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/* The radio is in control of certain attributes, but we keep a mirror
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* for easy access. Copy in the radio's values now that they've been
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* reset.
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*/
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priv->radio->getattr(priv->radio, IEEE802154_ATTR_MAC_MAX_FRAME_WAITTIME,
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&attr);
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priv->max_frame_waittime = attr.mac.max_frame_waittime;
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}
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priv->nrxusers = 0;
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return OK;
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}
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