nuttx/wireless/ieee802154/mac802154_scan.c

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/****************************************************************************
* wireless/ieee802154/mac802154_scan.c
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdlib.h>
#include <assert.h>
#include <errno.h>
#include <debug.h>
#include <string.h>
#include "mac802154.h"
#include "mac802154_internal.h"
#include "mac802154_scan.h"
#include <nuttx/wireless/ieee802154/ieee802154_mac.h>
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
static void mac802154_scantimeout(FAR void *arg);
/****************************************************************************
* Public MAC Functions
****************************************************************************/
/****************************************************************************
* Name: mac802154_req_scan
*
* Description:
* The MLME-SCAN.request primitive is used to initiate a channel scan over
* a given list of channels. A device can use a channel scan to measure the
* energy on the channel, search for the coordinator with which it
* associated, or search for all coordinators transmitting beacon frames
* within the POS of the scanning device. Scan results are returned
* via MULTIPLE calls to the struct mac802154_maccb_s->conf_scan callback.
* This is a difference with the official 802.15.4 specification,
* implemented here to save memory.
*
****************************************************************************/
int mac802154_req_scan(MACHANDLE mac, FAR struct ieee802154_scan_req_s *req)
{
FAR struct ieee802154_privmac_s *priv =
(FAR struct ieee802154_privmac_s *)mac;
int ret;
if (req->duration > 15 || req->numchan < 0 || req->numchan > 15)
{
ret = -EINVAL;
goto errout;
}
wlinfo("MLME: SCAN.request received\n");
/* Need to get access to the ops semaphore since operations are serial.
* This must be done before locking the MAC so that we don't hold the MAC
*/
ret = nxsem_wait_uninterruptible(&priv->opsem);
if (ret < 0)
{
goto errout;
}
priv->curr_op = MAC802154_OP_SCAN;
/* Get exclusive access to the MAC */
ret = nxmutex_lock(&priv->lock);
if (ret < 0)
{
nxsem_post(&priv->opsem);
goto errout;
}
/* Copy the request so we have a reference */
memcpy(&priv->currscan, req, sizeof(struct ieee802154_scan_req_s));
priv->scanindex = 0;
priv->npandesc = 0;
priv->scansymdur = IEEE802154_BASE_SUPERFRAME_DURATION *
((1 << req->duration) + 1);
switch (req->type)
{
case IEEE802154_SCANTYPE_PASSIVE:
{
wlinfo("MLME: Starting Passive Scan\n");
/* Set the channel to the first channel in the list */
mac802154_setchannel(priv, req->channels[priv->scanindex]);
mac802154_setchpage(priv, req->chpage);
/* Before commencing an active or passive scan, the MAC sublayer
* shall store the value of macPANId and then set it to 0xffff for
* the duration of the scan. This enables the receive filter to
* accept all beacons rather than just the beacons from its current
* PAN, as described in 5.1.6.2. On completion of the scan, the MAC
* sublayer shall restore the value of macPANId to the value stored
* before the scan began. [1] pg. 24
*/
IEEE802154_PANIDCOPY(priv->panidbeforescan, priv->addr.panid);
mac802154_setpanid(priv,
(const uint8_t *) & IEEE802154_PANID_UNSPEC);
/* ...after switching to the channel for a passive scan, the device
* shall enable its receiver for at most
* [aBaseSuperframeDuration * (2 * n + 1)],
* where n is the value of the ScanDuration parameter. [1] pg. 25
*/
mac802154_rxenable(priv);
mac802154_timerstart(priv,
priv->scansymdur,
mac802154_scantimeout);
}
break;
case IEEE802154_SCANTYPE_ACTIVE:
{
ret = -ENOTTY;
goto errout_with_lock;
}
break;
case IEEE802154_SCANTYPE_ED:
{
wlinfo("MLME: Starting Energy Scan\n");
/* Set the channel to the first channel in the list, and trigger an
* energy detect operation with the radio layer.
*/
mac802154_setchpage(priv, req->chpage);
mac802154_setchannel(priv, req->channels[priv->scanindex]);
priv->radio->energydetect(priv->radio, priv->scansymdur);
}
break;
case IEEE802154_SCANTYPE_ORPHAN:
{
ret = -ENOTTY;
goto errout_with_lock;
}
break;
default:
{
ret = -EINVAL;
goto errout_with_lock;
}
break;
}
nxmutex_unlock(&priv->lock);
return OK;
errout_with_lock:
nxmutex_unlock(&priv->lock);
nxsem_post(&priv->opsem);
errout:
return ret;
}
/****************************************************************************
* Internal MAC Functions
****************************************************************************/
void mac802154_scanfinish(FAR struct ieee802154_privmac_s *priv,
enum ieee802154_status_e status)
{
Merged in antmerlino/nuttx/sixlowpan-mac802154 (pull request #526) ieee802154: Simplifies notify() and rxframe() calls to a single notify() call. dataind's and all other "notifs" are now "primitives" which aligns with standard terminology * mac802154: Adds missing breaks from case statement * sixlowpan: Fixes bad logic where ACK is not requested if address is not a broadcast * ieee802154: Simplification of "notifs" and "datainds" to generic primitives passed via a single notify call to the layer above the MAC * Directories.mk should reference CONFIG_WIRELESS instead of CONFIG_DRIVERS_WIRELESS * xbee_netdev: Network must be locked when calling sixlowpan_input * sixlowpan: Reassembly buffer can't be freed if provided by radio driver * sixlowpan: Don't free IOB if there is an error processing it as the MAC will try to pass it along to another receiver * ieee802154: Adds basic logging to ieee802154_primitive.c * Minor fixes after rebase * xbee: Adds AT query timeout to retry if XBee doesn't respond to request * same70-xplained: Adds Xbee support. Makes mikroBus slot Kconfig 'choice' * mac802154: Removes unused function declaration * drivers/mrf24j40: Fixes compilation error using . operator rather than -> operator * mac802154_device: Changes a few mac802154_primtive_free's to ieee802154_primitive_free() and changes notif to primitive in a couple places. * mac802154: Adds promiscous mode logic to bypass parsing of incoming frames. MAC char device also checks for promiscous mode and passes whole frames including header and FCS to the application if promiscous mode is enabled. * sixlowpan: Fixes logic to correctly check if packet is large enough to include header. This would cause packets to be considered too small when they are sufficiently sized. * sixlowpan: Fixes forwarding logic to use forwarding device rather than received device to look up destination link layer address * net/ipforward: Fixes typo that caused build error when IP forwarding was enabled with CONFIG_NET_ICMPv6_NEIGHBOR enabled as well. * configs/same70-xplained: Simple spelling fix Approved-by: Gregory Nutt <gnutt@nuttx.org>
2017-11-01 21:15:21 +01:00
FAR struct ieee802154_primitive_s * primitive;
FAR struct ieee802154_scan_conf_s *scanconf;
Merged in antmerlino/nuttx/sixlowpan-mac802154 (pull request #526) ieee802154: Simplifies notify() and rxframe() calls to a single notify() call. dataind's and all other "notifs" are now "primitives" which aligns with standard terminology * mac802154: Adds missing breaks from case statement * sixlowpan: Fixes bad logic where ACK is not requested if address is not a broadcast * ieee802154: Simplification of "notifs" and "datainds" to generic primitives passed via a single notify call to the layer above the MAC * Directories.mk should reference CONFIG_WIRELESS instead of CONFIG_DRIVERS_WIRELESS * xbee_netdev: Network must be locked when calling sixlowpan_input * sixlowpan: Reassembly buffer can't be freed if provided by radio driver * sixlowpan: Don't free IOB if there is an error processing it as the MAC will try to pass it along to another receiver * ieee802154: Adds basic logging to ieee802154_primitive.c * Minor fixes after rebase * xbee: Adds AT query timeout to retry if XBee doesn't respond to request * same70-xplained: Adds Xbee support. Makes mikroBus slot Kconfig 'choice' * mac802154: Removes unused function declaration * drivers/mrf24j40: Fixes compilation error using . operator rather than -> operator * mac802154_device: Changes a few mac802154_primtive_free's to ieee802154_primitive_free() and changes notif to primitive in a couple places. * mac802154: Adds promiscous mode logic to bypass parsing of incoming frames. MAC char device also checks for promiscous mode and passes whole frames including header and FCS to the application if promiscous mode is enabled. * sixlowpan: Fixes logic to correctly check if packet is large enough to include header. This would cause packets to be considered too small when they are sufficiently sized. * sixlowpan: Fixes forwarding logic to use forwarding device rather than received device to look up destination link layer address * net/ipforward: Fixes typo that caused build error when IP forwarding was enabled with CONFIG_NET_ICMPv6_NEIGHBOR enabled as well. * configs/same70-xplained: Simple spelling fix Approved-by: Gregory Nutt <gnutt@nuttx.org>
2017-11-01 21:15:21 +01:00
primitive = ieee802154_primitive_allocate();
scanconf = &primitive->u.scanconf;
Merged in antmerlino/nuttx/sixlowpan-mac802154 (pull request #526) ieee802154: Simplifies notify() and rxframe() calls to a single notify() call. dataind's and all other "notifs" are now "primitives" which aligns with standard terminology * mac802154: Adds missing breaks from case statement * sixlowpan: Fixes bad logic where ACK is not requested if address is not a broadcast * ieee802154: Simplification of "notifs" and "datainds" to generic primitives passed via a single notify call to the layer above the MAC * Directories.mk should reference CONFIG_WIRELESS instead of CONFIG_DRIVERS_WIRELESS * xbee_netdev: Network must be locked when calling sixlowpan_input * sixlowpan: Reassembly buffer can't be freed if provided by radio driver * sixlowpan: Don't free IOB if there is an error processing it as the MAC will try to pass it along to another receiver * ieee802154: Adds basic logging to ieee802154_primitive.c * Minor fixes after rebase * xbee: Adds AT query timeout to retry if XBee doesn't respond to request * same70-xplained: Adds Xbee support. Makes mikroBus slot Kconfig 'choice' * mac802154: Removes unused function declaration * drivers/mrf24j40: Fixes compilation error using . operator rather than -> operator * mac802154_device: Changes a few mac802154_primtive_free's to ieee802154_primitive_free() and changes notif to primitive in a couple places. * mac802154: Adds promiscous mode logic to bypass parsing of incoming frames. MAC char device also checks for promiscous mode and passes whole frames including header and FCS to the application if promiscous mode is enabled. * sixlowpan: Fixes logic to correctly check if packet is large enough to include header. This would cause packets to be considered too small when they are sufficiently sized. * sixlowpan: Fixes forwarding logic to use forwarding device rather than received device to look up destination link layer address * net/ipforward: Fixes typo that caused build error when IP forwarding was enabled with CONFIG_NET_ICMPv6_NEIGHBOR enabled as well. * configs/same70-xplained: Simple spelling fix Approved-by: Gregory Nutt <gnutt@nuttx.org>
2017-11-01 21:15:21 +01:00
primitive->type = IEEE802154_PRIMITIVE_CONF_SCAN;
scanconf->type = priv->currscan.type;
scanconf->chpage = priv->currscan.chpage;
if (priv->currscan.type == IEEE802154_SCANTYPE_ED)
{
/* "The list of energy measurements, one for each channel searched
* during an ED scan. This parameter is null for active, passive,
* and orphan scans." [1]
*/
memcpy(scanconf->edlist,
priv->edlist,
sizeof(scanconf->edlist));
memcpy(scanconf->chlist,
priv->currscan.channels,
sizeof(scanconf->chlist));
scanconf->numresults = priv->currscan.numchan;
}
Merged in antmerlino/nuttx/sixlowpan-mac802154 (pull request #526) ieee802154: Simplifies notify() and rxframe() calls to a single notify() call. dataind's and all other "notifs" are now "primitives" which aligns with standard terminology * mac802154: Adds missing breaks from case statement * sixlowpan: Fixes bad logic where ACK is not requested if address is not a broadcast * ieee802154: Simplification of "notifs" and "datainds" to generic primitives passed via a single notify call to the layer above the MAC * Directories.mk should reference CONFIG_WIRELESS instead of CONFIG_DRIVERS_WIRELESS * xbee_netdev: Network must be locked when calling sixlowpan_input * sixlowpan: Reassembly buffer can't be freed if provided by radio driver * sixlowpan: Don't free IOB if there is an error processing it as the MAC will try to pass it along to another receiver * ieee802154: Adds basic logging to ieee802154_primitive.c * Minor fixes after rebase * xbee: Adds AT query timeout to retry if XBee doesn't respond to request * same70-xplained: Adds Xbee support. Makes mikroBus slot Kconfig 'choice' * mac802154: Removes unused function declaration * drivers/mrf24j40: Fixes compilation error using . operator rather than -> operator * mac802154_device: Changes a few mac802154_primtive_free's to ieee802154_primitive_free() and changes notif to primitive in a couple places. * mac802154: Adds promiscous mode logic to bypass parsing of incoming frames. MAC char device also checks for promiscous mode and passes whole frames including header and FCS to the application if promiscous mode is enabled. * sixlowpan: Fixes logic to correctly check if packet is large enough to include header. This would cause packets to be considered too small when they are sufficiently sized. * sixlowpan: Fixes forwarding logic to use forwarding device rather than received device to look up destination link layer address * net/ipforward: Fixes typo that caused build error when IP forwarding was enabled with CONFIG_NET_ICMPv6_NEIGHBOR enabled as well. * configs/same70-xplained: Simple spelling fix Approved-by: Gregory Nutt <gnutt@nuttx.org>
2017-11-01 21:15:21 +01:00
else
{
/* "A list of the channels given in the request which were not
* scanned. This parameter is not valid for ED scans." [1]
*/
Merged in antmerlino/nuttx/sixlowpan-mac802154 (pull request #526) ieee802154: Simplifies notify() and rxframe() calls to a single notify() call. dataind's and all other "notifs" are now "primitives" which aligns with standard terminology * mac802154: Adds missing breaks from case statement * sixlowpan: Fixes bad logic where ACK is not requested if address is not a broadcast * ieee802154: Simplification of "notifs" and "datainds" to generic primitives passed via a single notify call to the layer above the MAC * Directories.mk should reference CONFIG_WIRELESS instead of CONFIG_DRIVERS_WIRELESS * xbee_netdev: Network must be locked when calling sixlowpan_input * sixlowpan: Reassembly buffer can't be freed if provided by radio driver * sixlowpan: Don't free IOB if there is an error processing it as the MAC will try to pass it along to another receiver * ieee802154: Adds basic logging to ieee802154_primitive.c * Minor fixes after rebase * xbee: Adds AT query timeout to retry if XBee doesn't respond to request * same70-xplained: Adds Xbee support. Makes mikroBus slot Kconfig 'choice' * mac802154: Removes unused function declaration * drivers/mrf24j40: Fixes compilation error using . operator rather than -> operator * mac802154_device: Changes a few mac802154_primtive_free's to ieee802154_primitive_free() and changes notif to primitive in a couple places. * mac802154: Adds promiscous mode logic to bypass parsing of incoming frames. MAC char device also checks for promiscous mode and passes whole frames including header and FCS to the application if promiscous mode is enabled. * sixlowpan: Fixes logic to correctly check if packet is large enough to include header. This would cause packets to be considered too small when they are sufficiently sized. * sixlowpan: Fixes forwarding logic to use forwarding device rather than received device to look up destination link layer address * net/ipforward: Fixes typo that caused build error when IP forwarding was enabled with CONFIG_NET_ICMPv6_NEIGHBOR enabled as well. * configs/same70-xplained: Simple spelling fix Approved-by: Gregory Nutt <gnutt@nuttx.org>
2017-11-01 21:15:21 +01:00
scanconf->numunscanned = priv->currscan.numchan - priv->scanindex;
if (scanconf->numunscanned)
{
memcpy(scanconf->chlist, &priv->currscan.channels[priv->scanindex],
scanconf->numunscanned);
}
/* "The list of PAN descriptors, one for each beacon found during an
* active or passive scan if macAutoRequest is set to TRUE. This
* parameter is null for ED and orphan scans or when macAutoRequest
* is set to FALSE during an active or passive scan." [1]
*/
if (priv->currscan.type != IEEE802154_SCANTYPE_ORPHAN && priv->autoreq)
{
memcpy(scanconf->pandescs, priv->pandescs,
sizeof(struct ieee802154_pandesc_s) * priv->npandesc);
scanconf->numresults = priv->npandesc;
}
if (priv->currscan.type == IEEE802154_SCANTYPE_PASSIVE)
{
/* Reset the PAN ID to the setting before the scan started */
mac802154_setpanid(priv, priv->panidbeforescan);
}
}
scanconf->status = status;
Merged in antmerlino/nuttx/sixlowpan-mac802154 (pull request #526) ieee802154: Simplifies notify() and rxframe() calls to a single notify() call. dataind's and all other "notifs" are now "primitives" which aligns with standard terminology * mac802154: Adds missing breaks from case statement * sixlowpan: Fixes bad logic where ACK is not requested if address is not a broadcast * ieee802154: Simplification of "notifs" and "datainds" to generic primitives passed via a single notify call to the layer above the MAC * Directories.mk should reference CONFIG_WIRELESS instead of CONFIG_DRIVERS_WIRELESS * xbee_netdev: Network must be locked when calling sixlowpan_input * sixlowpan: Reassembly buffer can't be freed if provided by radio driver * sixlowpan: Don't free IOB if there is an error processing it as the MAC will try to pass it along to another receiver * ieee802154: Adds basic logging to ieee802154_primitive.c * Minor fixes after rebase * xbee: Adds AT query timeout to retry if XBee doesn't respond to request * same70-xplained: Adds Xbee support. Makes mikroBus slot Kconfig 'choice' * mac802154: Removes unused function declaration * drivers/mrf24j40: Fixes compilation error using . operator rather than -> operator * mac802154_device: Changes a few mac802154_primtive_free's to ieee802154_primitive_free() and changes notif to primitive in a couple places. * mac802154: Adds promiscous mode logic to bypass parsing of incoming frames. MAC char device also checks for promiscous mode and passes whole frames including header and FCS to the application if promiscous mode is enabled. * sixlowpan: Fixes logic to correctly check if packet is large enough to include header. This would cause packets to be considered too small when they are sufficiently sized. * sixlowpan: Fixes forwarding logic to use forwarding device rather than received device to look up destination link layer address * net/ipforward: Fixes typo that caused build error when IP forwarding was enabled with CONFIG_NET_ICMPv6_NEIGHBOR enabled as well. * configs/same70-xplained: Simple spelling fix Approved-by: Gregory Nutt <gnutt@nuttx.org>
2017-11-01 21:15:21 +01:00
priv->curr_op = MAC802154_OP_NONE;
nxsem_post(&priv->opsem);
Merged in antmerlino/nuttx/sixlowpan-mac802154 (pull request #526) ieee802154: Simplifies notify() and rxframe() calls to a single notify() call. dataind's and all other "notifs" are now "primitives" which aligns with standard terminology * mac802154: Adds missing breaks from case statement * sixlowpan: Fixes bad logic where ACK is not requested if address is not a broadcast * ieee802154: Simplification of "notifs" and "datainds" to generic primitives passed via a single notify call to the layer above the MAC * Directories.mk should reference CONFIG_WIRELESS instead of CONFIG_DRIVERS_WIRELESS * xbee_netdev: Network must be locked when calling sixlowpan_input * sixlowpan: Reassembly buffer can't be freed if provided by radio driver * sixlowpan: Don't free IOB if there is an error processing it as the MAC will try to pass it along to another receiver * ieee802154: Adds basic logging to ieee802154_primitive.c * Minor fixes after rebase * xbee: Adds AT query timeout to retry if XBee doesn't respond to request * same70-xplained: Adds Xbee support. Makes mikroBus slot Kconfig 'choice' * mac802154: Removes unused function declaration * drivers/mrf24j40: Fixes compilation error using . operator rather than -> operator * mac802154_device: Changes a few mac802154_primtive_free's to ieee802154_primitive_free() and changes notif to primitive in a couple places. * mac802154: Adds promiscous mode logic to bypass parsing of incoming frames. MAC char device also checks for promiscous mode and passes whole frames including header and FCS to the application if promiscous mode is enabled. * sixlowpan: Fixes logic to correctly check if packet is large enough to include header. This would cause packets to be considered too small when they are sufficiently sized. * sixlowpan: Fixes forwarding logic to use forwarding device rather than received device to look up destination link layer address * net/ipforward: Fixes typo that caused build error when IP forwarding was enabled with CONFIG_NET_ICMPv6_NEIGHBOR enabled as well. * configs/same70-xplained: Simple spelling fix Approved-by: Gregory Nutt <gnutt@nuttx.org>
2017-11-01 21:15:21 +01:00
mac802154_notify(priv, primitive);
}
/****************************************************************************
* Name: mac802154_edscan_onresult
*
* Description:
* Function indirectly called from the radio layer via the radiocb
* edresult() call.
*
* Assumptions:
* Called with the priv mac struct locked
*
****************************************************************************/
void mac802154_edscan_onresult(FAR struct ieee802154_privmac_s *priv,
uint8_t edval)
{
DEBUGASSERT(priv->curr_op == MAC802154_OP_SCAN &&
priv->currscan.type == IEEE802154_SCANTYPE_ED);
/* Copy the energy value into our local list */
priv->edlist[priv->scanindex] = edval;
/* If we got here it means we are done scanning that channel */
priv->scanindex++;
/* Check to see if this was the last channel to scan */
if (priv->scanindex == priv->currscan.numchan)
{
mac802154_scanfinish(priv, IEEE802154_STATUS_SUCCESS);
return;
}
/* Continue on with the next channel in the list */
mac802154_setchannel(priv, priv->currscan.channels[priv->scanindex]);
/* ...after switching to the channel for a passive scan, the device
* shall enable its receiver for at most
* [aBaseSuperframeDuration * (2 * n + 1)],
* where n is the value of the ScanDuration parameter. [1] pg. 25
*/
priv->radio->energydetect(priv->radio, priv->scansymdur);
}
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: mac802154_scantimeout
*
* Description:
* Function registered with MAC timer that gets called via the work queue
* to handle a timeout for performing a scan operation.
*
****************************************************************************/
static void mac802154_scantimeout(FAR void *arg)
{
FAR struct ieee802154_privmac_s *priv =
(FAR struct ieee802154_privmac_s *)arg;
DEBUGASSERT(priv->curr_op == MAC802154_OP_SCAN);
nxmutex_lock(&priv->lock);
Merged in antmerlino/nuttx/sixlowpan-mac802154 (pull request #526) ieee802154: Simplifies notify() and rxframe() calls to a single notify() call. dataind's and all other "notifs" are now "primitives" which aligns with standard terminology * mac802154: Adds missing breaks from case statement * sixlowpan: Fixes bad logic where ACK is not requested if address is not a broadcast * ieee802154: Simplification of "notifs" and "datainds" to generic primitives passed via a single notify call to the layer above the MAC * Directories.mk should reference CONFIG_WIRELESS instead of CONFIG_DRIVERS_WIRELESS * xbee_netdev: Network must be locked when calling sixlowpan_input * sixlowpan: Reassembly buffer can't be freed if provided by radio driver * sixlowpan: Don't free IOB if there is an error processing it as the MAC will try to pass it along to another receiver * ieee802154: Adds basic logging to ieee802154_primitive.c * Minor fixes after rebase * xbee: Adds AT query timeout to retry if XBee doesn't respond to request * same70-xplained: Adds Xbee support. Makes mikroBus slot Kconfig 'choice' * mac802154: Removes unused function declaration * drivers/mrf24j40: Fixes compilation error using . operator rather than -> operator * mac802154_device: Changes a few mac802154_primtive_free's to ieee802154_primitive_free() and changes notif to primitive in a couple places. * mac802154: Adds promiscous mode logic to bypass parsing of incoming frames. MAC char device also checks for promiscous mode and passes whole frames including header and FCS to the application if promiscous mode is enabled. * sixlowpan: Fixes logic to correctly check if packet is large enough to include header. This would cause packets to be considered too small when they are sufficiently sized. * sixlowpan: Fixes forwarding logic to use forwarding device rather than received device to look up destination link layer address * net/ipforward: Fixes typo that caused build error when IP forwarding was enabled with CONFIG_NET_ICMPv6_NEIGHBOR enabled as well. * configs/same70-xplained: Simple spelling fix Approved-by: Gregory Nutt <gnutt@nuttx.org>
2017-11-01 21:15:21 +01:00
/* If we got here it means we are done scanning that channel */
mac802154_rxdisable(priv);
priv->scanindex++;
/* Check to see if this was the last channel to scan */
if (priv->scanindex == priv->currscan.numchan)
{
if (priv->npandesc > 0)
{
mac802154_scanfinish(priv, IEEE802154_STATUS_SUCCESS);
}
else
{
mac802154_scanfinish(priv, IEEE802154_STATUS_NO_BEACON);
}
nxmutex_unlock(&priv->lock);
return;
}
mac802154_setchannel(priv, priv->currscan.channels[priv->scanindex]);
/* ...after switching to the channel for a passive scan, the device
* shall enable its receiver for at most
* [aBaseSuperframeDuration * (2 * n + 1)],
* where n is the value of the ScanDuration parameter. [1] pg. 25
*/
mac802154_rxenable(priv);
mac802154_timerstart(priv, priv->scansymdur, mac802154_scantimeout);
nxmutex_unlock(&priv->lock);
}