source: mainline/uspace/lib/ieee80211/src/ieee80211_impl.c@ 59fa7ab

/*
 * Copyright (c) 2015 Jan Kolarik
 * 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.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 libieee80211
 * @{
 */

/** @file ieee80211_impl.c
 * 
 * IEEE 802.11 default device functions implementation.
 */

#include <errno.h>

#include <ieee80211_impl.h>

/**
 * Default implementation of IEEE802.11 start function.
 * 
 * @param ieee80211_dev Structure of IEEE802.11 device.
 * 
 * @return EOK. 
 */
int ieee80211_start_impl(ieee80211_dev_t *ieee80211_dev)
{
        return EOK;
}

/**
 * Default implementation of IEEE802.11 TX handler function.
 * 
 * @param ieee80211_dev Structure of IEEE802.11 device.
 * @param buffer Buffer with data to send.
 * @param buffer_size Size of buffer.
 * 
 * @return EOK. 
 */
int ieee80211_tx_handler_impl(ieee80211_dev_t *ieee80211_dev, void *buffer, 
        size_t buffer_size)
{
        return EOK;
}

/**
 * Default implementation of IEEE802.11 set frequency function.
 * 
 * @param ieee80211_dev Structure of IEEE802.11 device.
 * @param freq Value of frequency to be switched on.
 * 
 * @return EOK. 
 */
int ieee80211_set_freq_impl(ieee80211_dev_t *ieee80211_dev, uint16_t freq)
{
        return EOK;
}

/**
 * Default implementation of IEEE802.11 scan function.
 * 
 * @param ieee80211_dev Structure of IEEE802.11 device.
 * @param results Pointer to structure where should be scan results stored.
 * 
 * @return EOK if succeed, negative error code otherwise. 
 */
int ieee80211_scan_impl(ieee80211_dev_t *ieee80211_dev)
{
        uint16_t orig_freq = ieee80211_dev->current_freq;
        
        for(uint16_t freq = IEEE80211_FIRST_FREQ;
                freq <= IEEE80211_MAX_FREQ; 
                freq += IEEE80211_CHANNEL_GAP) {
                ieee80211_dev->ops->set_freq(ieee80211_dev, freq);
                ieee80211_probe_request(ieee80211_dev);
                
                /* Wait for probe responses. */
                usleep(100000);
        }
        
        ieee80211_dev->ops->set_freq(ieee80211_dev, orig_freq);
        
        return EOK;
}

/** @}
 */