2 * Copyright (c) 2011, Olivier MATZ <zer0@droids-corp.org>
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the University of California, Berkeley nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #include <aversive/queue.h>
30 #include <aversive/pgmspace.h>
38 #include "xbee_neighbor.h"
39 #include "xbee_stats.h"
40 #include "xbee_rxtx.h"
48 int xbee_register_channel(struct xbee_dev *dev, int channel,
49 xbee_rx_cb_t *rx_cb, void *opaque)
51 /* user asked for any channel */
52 if (channel == XBEE_CHANNEL_ANY) {
55 /* skip XBEE_DEFAULT_CHANNEL == 0 */
56 for (ch = 1; ch < XBEE_MAX_CHANNEL; ch++) {
57 if (dev->channel[ch].registered == 0) {
62 /* no available channels */
63 if (channel == XBEE_CHANNEL_ANY)
66 /* user requested a specific channel */
67 else if (channel < 0 || channel >= XBEE_MAX_CHANNEL ||
68 dev->channel[channel].registered == 1)
69 return -1; /* not available */
71 dev->channel[channel].registered = 1;
72 dev->channel[channel].rx_cb = rx_cb;
73 dev->channel[channel].arg = opaque;
77 int xbee_unregister_channel(struct xbee_dev *dev, int channel)
79 if (channel < 0 || channel >= XBEE_MAX_CHANNEL ||
80 dev->channel[channel].registered == 0)
82 dev->channel[channel].registered = 0;
83 dev->channel[channel].rx_cb = NULL;
84 dev->channel[channel].arg = NULL;
88 int xbee_set_opaque(struct xbee_dev *dev, int channel, void *opaque)
90 if (channel < 0 || channel >= XBEE_MAX_CHANNEL ||
91 dev->channel[channel].registered == 0)
94 dev->channel[channel].arg = opaque;
98 int xbee_open(struct xbee_dev *dev, FILE *xbee_file)
100 memset(dev, 0, sizeof(*dev));
101 dev->file = xbee_file;
102 xbee_neigh_init(dev);