linux/drivers/uwb/beacon.c
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   1/*
   2 * Ultra Wide Band
   3 * Beacon management
   4 *
   5 * Copyright (C) 2005-2006 Intel Corporation
   6 * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License version
  10 * 2 as published by the Free Software Foundation.
  11 *
  12 * This program is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU General Public License
  18 * along with this program; if not, write to the Free Software
  19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  20 * 02110-1301, USA.
  21 *
  22 *
  23 * FIXME: docs
  24 */
  25#include <linux/kernel.h>
  26#include <linux/init.h>
  27#include <linux/module.h>
  28#include <linux/device.h>
  29#include <linux/err.h>
  30#include <linux/kdev_t.h>
  31#include <linux/slab.h>
  32
  33#include "uwb-internal.h"
  34
  35/* Start Beaconing command structure */
  36struct uwb_rc_cmd_start_beacon {
  37        struct uwb_rccb rccb;
  38        __le16 wBPSTOffset;
  39        u8 bChannelNumber;
  40} __attribute__((packed));
  41
  42
  43static int uwb_rc_start_beacon(struct uwb_rc *rc, u16 bpst_offset, u8 channel)
  44{
  45        int result;
  46        struct uwb_rc_cmd_start_beacon *cmd;
  47        struct uwb_rc_evt_confirm reply;
  48
  49        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
  50        if (cmd == NULL)
  51                return -ENOMEM;
  52        cmd->rccb.bCommandType = UWB_RC_CET_GENERAL;
  53        cmd->rccb.wCommand = cpu_to_le16(UWB_RC_CMD_START_BEACON);
  54        cmd->wBPSTOffset = cpu_to_le16(bpst_offset);
  55        cmd->bChannelNumber = channel;
  56        reply.rceb.bEventType = UWB_RC_CET_GENERAL;
  57        reply.rceb.wEvent = UWB_RC_CMD_START_BEACON;
  58        result = uwb_rc_cmd(rc, "START-BEACON", &cmd->rccb, sizeof(*cmd),
  59                            &reply.rceb, sizeof(reply));
  60        if (result < 0)
  61                goto error_cmd;
  62        if (reply.bResultCode != UWB_RC_RES_SUCCESS) {
  63                dev_err(&rc->uwb_dev.dev,
  64                        "START-BEACON: command execution failed: %s (%d)\n",
  65                        uwb_rc_strerror(reply.bResultCode), reply.bResultCode);
  66                result = -EIO;
  67        }
  68error_cmd:
  69        kfree(cmd);
  70        return result;
  71}
  72
  73static int uwb_rc_stop_beacon(struct uwb_rc *rc)
  74{
  75        int result;
  76        struct uwb_rccb *cmd;
  77        struct uwb_rc_evt_confirm reply;
  78
  79        cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
  80        if (cmd == NULL)
  81                return -ENOMEM;
  82        cmd->bCommandType = UWB_RC_CET_GENERAL;
  83        cmd->wCommand = cpu_to_le16(UWB_RC_CMD_STOP_BEACON);
  84        reply.rceb.bEventType = UWB_RC_CET_GENERAL;
  85        reply.rceb.wEvent = UWB_RC_CMD_STOP_BEACON;
  86        result = uwb_rc_cmd(rc, "STOP-BEACON", cmd, sizeof(*cmd),
  87                            &reply.rceb, sizeof(reply));
  88        if (result < 0)
  89                goto error_cmd;
  90        if (reply.bResultCode != UWB_RC_RES_SUCCESS) {
  91                dev_err(&rc->uwb_dev.dev,
  92                        "STOP-BEACON: command execution failed: %s (%d)\n",
  93                        uwb_rc_strerror(reply.bResultCode), reply.bResultCode);
  94                result = -EIO;
  95        }
  96error_cmd:
  97        kfree(cmd);
  98        return result;
  99}
 100
 101/*
 102 * Start/stop beacons
 103 *
 104 * @rc:          UWB Radio Controller to operate on
 105 * @channel:     UWB channel on which to beacon (WUSB[table
 106 *               5-12]). If -1, stop beaconing.
 107 * @bpst_offset: Beacon Period Start Time offset; FIXME-do zero
 108 *
 109 * According to WHCI 0.95 [4.13.6] the driver will only receive the RCEB
 110 * of a SET IE command after the device sent the first beacon that includes
 111 * the IEs specified in the SET IE command. So, after we start beaconing we
 112 * check if there is anything in the IE cache and call the SET IE command
 113 * if needed.
 114 */
 115int uwb_rc_beacon(struct uwb_rc *rc, int channel, unsigned bpst_offset)
 116{
 117        int result;
 118        struct device *dev = &rc->uwb_dev.dev;
 119
 120        if (channel < 0)
 121                channel = -1;
 122        if (channel == -1)
 123                result = uwb_rc_stop_beacon(rc);
 124        else {
 125                /* channel >= 0...dah */
 126                result = uwb_rc_start_beacon(rc, bpst_offset, channel);
 127                if (result < 0)
 128                        return result;
 129                if (le16_to_cpu(rc->ies->wIELength) > 0) {
 130                        result = uwb_rc_set_ie(rc, rc->ies);
 131                        if (result < 0) {
 132                                dev_err(dev, "Cannot set new IE on device: "
 133                                        "%d\n", result);
 134                                result = uwb_rc_stop_beacon(rc);
 135                                channel = -1;
 136                                bpst_offset = 0;
 137                        }
 138                }
 139        }
 140
 141        if (result >= 0)
 142                rc->beaconing = channel;
 143        return result;
 144}
 145
 146/*
 147 * Beacon cache
 148 *
 149 * The purpose of this is to speed up the lookup of becon information
 150 * when a new beacon arrives. The UWB Daemon uses it also to keep a
 151 * tab of which devices are in radio distance and which not. When a
 152 * device's beacon stays present for more than a certain amount of
 153 * time, it is considered a new, usable device. When a beacon ceases
 154 * to be received for a certain amount of time, it is considered that
 155 * the device is gone.
 156 *
 157 * FIXME: use an allocator for the entries
 158 * FIXME: use something faster for search than a list
 159 */
 160
 161void uwb_bce_kfree(struct kref *_bce)
 162{
 163        struct uwb_beca_e *bce = container_of(_bce, struct uwb_beca_e, refcnt);
 164
 165        kfree(bce->be);
 166        kfree(bce);
 167}
 168
 169
 170/* Find a beacon by dev addr in the cache */
 171static
 172struct uwb_beca_e *__uwb_beca_find_bydev(struct uwb_rc *rc,
 173                                         const struct uwb_dev_addr *dev_addr)
 174{
 175        struct uwb_beca_e *bce, *next;
 176        list_for_each_entry_safe(bce, next, &rc->uwb_beca.list, node) {
 177                if (!memcmp(&bce->dev_addr, dev_addr, sizeof(bce->dev_addr)))
 178                        goto out;
 179        }
 180        bce = NULL;
 181out:
 182        return bce;
 183}
 184
 185/* Find a beacon by dev addr in the cache */
 186static
 187struct uwb_beca_e *__uwb_beca_find_bymac(struct uwb_rc *rc, 
 188                                         const struct uwb_mac_addr *mac_addr)
 189{
 190        struct uwb_beca_e *bce, *next;
 191        list_for_each_entry_safe(bce, next, &rc->uwb_beca.list, node) {
 192                if (!memcmp(bce->mac_addr, mac_addr->data,
 193                            sizeof(struct uwb_mac_addr)))
 194                        goto out;
 195        }
 196        bce = NULL;
 197out:
 198        return bce;
 199}
 200
 201/**
 202 * uwb_dev_get_by_devaddr - get a UWB device with a specific DevAddr
 203 * @rc:      the radio controller that saw the device
 204 * @devaddr: DevAddr of the UWB device to find
 205 *
 206 * There may be more than one matching device (in the case of a
 207 * DevAddr conflict), but only the first one is returned.
 208 */
 209struct uwb_dev *uwb_dev_get_by_devaddr(struct uwb_rc *rc,
 210                                       const struct uwb_dev_addr *devaddr)
 211{
 212        struct uwb_dev *found = NULL;
 213        struct uwb_beca_e *bce;
 214
 215        mutex_lock(&rc->uwb_beca.mutex);
 216        bce = __uwb_beca_find_bydev(rc, devaddr);
 217        if (bce)
 218                found = uwb_dev_try_get(rc, bce->uwb_dev);
 219        mutex_unlock(&rc->uwb_beca.mutex);
 220
 221        return found;
 222}
 223
 224/**
 225 * uwb_dev_get_by_macaddr - get a UWB device with a specific EUI-48
 226 * @rc:      the radio controller that saw the device
 227 * @devaddr: EUI-48 of the UWB device to find
 228 */
 229struct uwb_dev *uwb_dev_get_by_macaddr(struct uwb_rc *rc,
 230                                       const struct uwb_mac_addr *macaddr)
 231{
 232        struct uwb_dev *found = NULL;
 233        struct uwb_beca_e *bce;
 234
 235        mutex_lock(&rc->uwb_beca.mutex);
 236        bce = __uwb_beca_find_bymac(rc, macaddr);
 237        if (bce)
 238                found = uwb_dev_try_get(rc, bce->uwb_dev);
 239        mutex_unlock(&rc->uwb_beca.mutex);
 240
 241        return found;
 242}
 243
 244/* Initialize a beacon cache entry */
 245static void uwb_beca_e_init(struct uwb_beca_e *bce)
 246{
 247        mutex_init(&bce->mutex);
 248        kref_init(&bce->refcnt);
 249        stats_init(&bce->lqe_stats);
 250        stats_init(&bce->rssi_stats);
 251}
 252
 253/*
 254 * Add a beacon to the cache
 255 *
 256 * @be:         Beacon event information
 257 * @bf:         Beacon frame (part of b, really)
 258 * @ts_jiffies: Timestamp (in jiffies) when the beacon was received
 259 */
 260static
 261struct uwb_beca_e *__uwb_beca_add(struct uwb_rc *rc,
 262                                  struct uwb_rc_evt_beacon *be,
 263                                  struct uwb_beacon_frame *bf,
 264                                  unsigned long ts_jiffies)
 265{
 266        struct uwb_beca_e *bce;
 267
 268        bce = kzalloc(sizeof(*bce), GFP_KERNEL);
 269        if (bce == NULL)
 270                return NULL;
 271        uwb_beca_e_init(bce);
 272        bce->ts_jiffies = ts_jiffies;
 273        bce->uwb_dev = NULL;
 274        list_add(&bce->node, &rc->uwb_beca.list);
 275        return bce;
 276}
 277
 278/*
 279 * Wipe out beacon entries that became stale
 280 *
 281 * Remove associated devicest too.
 282 */
 283void uwb_beca_purge(struct uwb_rc *rc)
 284{
 285        struct uwb_beca_e *bce, *next;
 286        unsigned long expires;
 287
 288        mutex_lock(&rc->uwb_beca.mutex);
 289        list_for_each_entry_safe(bce, next, &rc->uwb_beca.list, node) {
 290                expires = bce->ts_jiffies + msecs_to_jiffies(beacon_timeout_ms);
 291                if (time_after(jiffies, expires)) {
 292                        uwbd_dev_offair(bce);
 293                }
 294        }
 295        mutex_unlock(&rc->uwb_beca.mutex);
 296}
 297
 298/* Clean up the whole beacon cache. Called on shutdown */
 299void uwb_beca_release(struct uwb_rc *rc)
 300{
 301        struct uwb_beca_e *bce, *next;
 302
 303        mutex_lock(&rc->uwb_beca.mutex);
 304        list_for_each_entry_safe(bce, next, &rc->uwb_beca.list, node) {
 305                list_del(&bce->node);
 306                uwb_bce_put(bce);
 307        }
 308        mutex_unlock(&rc->uwb_beca.mutex);
 309}
 310
 311static void uwb_beacon_print(struct uwb_rc *rc, struct uwb_rc_evt_beacon *be,
 312                             struct uwb_beacon_frame *bf)
 313{
 314        char macbuf[UWB_ADDR_STRSIZE];
 315        char devbuf[UWB_ADDR_STRSIZE];
 316        char dstbuf[UWB_ADDR_STRSIZE];
 317
 318        uwb_mac_addr_print(macbuf, sizeof(macbuf), &bf->Device_Identifier);
 319        uwb_dev_addr_print(devbuf, sizeof(devbuf), &bf->hdr.SrcAddr);
 320        uwb_dev_addr_print(dstbuf, sizeof(dstbuf), &bf->hdr.DestAddr);
 321        dev_info(&rc->uwb_dev.dev,
 322                 "BEACON from %s to %s (ch%u offset %u slot %u MAC %s)\n",
 323                 devbuf, dstbuf, be->bChannelNumber, be->wBPSTOffset,
 324                 bf->Beacon_Slot_Number, macbuf);
 325}
 326
 327/*
 328 * @bce: beacon cache entry, referenced
 329 */
 330ssize_t uwb_bce_print_IEs(struct uwb_dev *uwb_dev, struct uwb_beca_e *bce,
 331                          char *buf, size_t size)
 332{
 333        ssize_t result = 0;
 334        struct uwb_rc_evt_beacon *be;
 335        struct uwb_beacon_frame *bf;
 336        int ies_len;
 337        struct uwb_ie_hdr *ies;
 338
 339        mutex_lock(&bce->mutex);
 340
 341        be = bce->be;
 342        if (be) {
 343                bf = (struct uwb_beacon_frame *)bce->be->BeaconInfo;
 344                ies_len = be->wBeaconInfoLength - sizeof(struct uwb_beacon_frame);
 345                ies = (struct uwb_ie_hdr *)bf->IEData;
 346
 347                result = uwb_ie_dump_hex(ies, ies_len, buf, size);
 348        }
 349
 350        mutex_unlock(&bce->mutex);
 351
 352        return result;
 353}
 354
 355/*
 356 * Verify that the beacon event, frame and IEs are ok
 357 */
 358static int uwb_verify_beacon(struct uwb_rc *rc, struct uwb_event *evt,
 359                             struct uwb_rc_evt_beacon *be)
 360{
 361        int result = -EINVAL;
 362        struct uwb_beacon_frame *bf;
 363        struct device *dev = &rc->uwb_dev.dev;
 364
 365        /* Is there enough data to decode a beacon frame? */
 366        if (evt->notif.size < sizeof(*be) + sizeof(*bf)) {
 367                dev_err(dev, "BEACON event: Not enough data to decode "
 368                        "(%zu vs %zu bytes needed)\n", evt->notif.size,
 369                        sizeof(*be) + sizeof(*bf));
 370                goto error;
 371        }
 372        /* FIXME: make sure beacon frame IEs are fine and that the whole thing
 373         * is consistent */
 374        result = 0;
 375error:
 376        return result;
 377}
 378
 379/*
 380 * Handle UWB_RC_EVT_BEACON events
 381 *
 382 * We check the beacon cache to see how the received beacon fares. If
 383 * is there already we refresh the timestamp. If not we create a new
 384 * entry.
 385 *
 386 * According to the WHCI and WUSB specs, only one beacon frame is
 387 * allowed per notification block, so we don't bother about scanning
 388 * for more.
 389 */
 390int uwbd_evt_handle_rc_beacon(struct uwb_event *evt)
 391{
 392        int result = -EINVAL;
 393        struct uwb_rc *rc;
 394        struct uwb_rc_evt_beacon *be;
 395        struct uwb_beacon_frame *bf;
 396        struct uwb_beca_e *bce;
 397        unsigned long last_ts;
 398
 399        rc = evt->rc;
 400        be = container_of(evt->notif.rceb, struct uwb_rc_evt_beacon, rceb);
 401        result = uwb_verify_beacon(rc, evt, be);
 402        if (result < 0)
 403                return result;
 404
 405        /* FIXME: handle alien beacons. */
 406        if (be->bBeaconType == UWB_RC_BEACON_TYPE_OL_ALIEN ||
 407            be->bBeaconType == UWB_RC_BEACON_TYPE_NOL_ALIEN) {
 408                return -ENOSYS;
 409        }
 410
 411        bf = (struct uwb_beacon_frame *) be->BeaconInfo;
 412
 413        /*
 414         * Drop beacons from devices with a NULL EUI-48 -- they cannot
 415         * be uniquely identified.
 416         *
 417         * It's expected that these will all be WUSB devices and they
 418         * have a WUSB specific connection method so ignoring them
 419         * here shouldn't be a problem.
 420         */
 421        if (uwb_mac_addr_bcast(&bf->Device_Identifier))
 422                return 0;
 423
 424        mutex_lock(&rc->uwb_beca.mutex);
 425        bce = __uwb_beca_find_bymac(rc, &bf->Device_Identifier);
 426        if (bce == NULL) {
 427                /* Not in there, a new device is pinging */
 428                uwb_beacon_print(evt->rc, be, bf);
 429                bce = __uwb_beca_add(rc, be, bf, evt->ts_jiffies);
 430                if (bce == NULL) {
 431                        mutex_unlock(&rc->uwb_beca.mutex);
 432                        return -ENOMEM;
 433                }
 434        }
 435        mutex_unlock(&rc->uwb_beca.mutex);
 436
 437        mutex_lock(&bce->mutex);
 438        /* purge old beacon data */
 439        kfree(bce->be);
 440
 441        last_ts = bce->ts_jiffies;
 442
 443        /* Update commonly used fields */
 444        bce->ts_jiffies = evt->ts_jiffies;
 445        bce->be = be;
 446        bce->dev_addr = bf->hdr.SrcAddr;
 447        bce->mac_addr = &bf->Device_Identifier;
 448        be->wBPSTOffset = le16_to_cpu(be->wBPSTOffset);
 449        be->wBeaconInfoLength = le16_to_cpu(be->wBeaconInfoLength);
 450        stats_add_sample(&bce->lqe_stats, be->bLQI - 7);
 451        stats_add_sample(&bce->rssi_stats, be->bRSSI + 18);
 452
 453        /*
 454         * This might be a beacon from a new device.
 455         */
 456        if (bce->uwb_dev == NULL)
 457                uwbd_dev_onair(evt->rc, bce);
 458
 459        mutex_unlock(&bce->mutex);
 460
 461        return 1; /* we keep the event data */
 462}
 463
 464/*
 465 * Handle UWB_RC_EVT_BEACON_SIZE events
 466 *
 467 * XXXXX
 468 */
 469int uwbd_evt_handle_rc_beacon_size(struct uwb_event *evt)
 470{
 471        int result = -EINVAL;
 472        struct device *dev = &evt->rc->uwb_dev.dev;
 473        struct uwb_rc_evt_beacon_size *bs;
 474
 475        /* Is there enough data to decode the event? */
 476        if (evt->notif.size < sizeof(*bs)) {
 477                dev_err(dev, "BEACON SIZE notification: Not enough data to "
 478                        "decode (%zu vs %zu bytes needed)\n",
 479                        evt->notif.size, sizeof(*bs));
 480                goto error;
 481        }
 482        bs = container_of(evt->notif.rceb, struct uwb_rc_evt_beacon_size, rceb);
 483        if (0)
 484                dev_info(dev, "Beacon size changed to %u bytes "
 485                        "(FIXME: action?)\n", le16_to_cpu(bs->wNewBeaconSize));
 486        else {
 487                /* temporary hack until we do something with this message... */
 488                static unsigned count;
 489                if (++count % 1000 == 0)
 490                        dev_info(dev, "Beacon size changed %u times "
 491                                "(FIXME: action?)\n", count);
 492        }
 493        result = 0;
 494error:
 495        return result;
 496}
 497
 498/**
 499 * uwbd_evt_handle_rc_bp_slot_change - handle a BP_SLOT_CHANGE event
 500 * @evt: the BP_SLOT_CHANGE notification from the radio controller
 501 *
 502 * If the event indicates that no beacon period slots were available
 503 * then radio controller has transitioned to a non-beaconing state.
 504 * Otherwise, simply save the current beacon slot.
 505 */
 506int uwbd_evt_handle_rc_bp_slot_change(struct uwb_event *evt)
 507{
 508        struct uwb_rc *rc = evt->rc;
 509        struct device *dev = &rc->uwb_dev.dev;
 510        struct uwb_rc_evt_bp_slot_change *bpsc;
 511
 512        if (evt->notif.size < sizeof(*bpsc)) {
 513                dev_err(dev, "BP SLOT CHANGE event: Not enough data\n");
 514                return -EINVAL;
 515        }
 516        bpsc = container_of(evt->notif.rceb, struct uwb_rc_evt_bp_slot_change, rceb);
 517
 518        mutex_lock(&rc->uwb_dev.mutex);
 519        if (uwb_rc_evt_bp_slot_change_no_slot(bpsc)) {
 520                dev_info(dev, "stopped beaconing: No free slots in BP\n");
 521                rc->beaconing = -1;
 522        } else
 523                rc->uwb_dev.beacon_slot = uwb_rc_evt_bp_slot_change_slot_num(bpsc);
 524        mutex_unlock(&rc->uwb_dev.mutex);
 525
 526        return 0;
 527}
 528
 529/**
 530 * Handle UWB_RC_EVT_BPOIE_CHANGE events
 531 *
 532 * XXXXX
 533 */
 534struct uwb_ie_bpo {
 535        struct uwb_ie_hdr hdr;
 536        u8                bp_length;
 537        u8                data[];
 538} __attribute__((packed));
 539
 540int uwbd_evt_handle_rc_bpoie_change(struct uwb_event *evt)
 541{
 542        int result = -EINVAL;
 543        struct device *dev = &evt->rc->uwb_dev.dev;
 544        struct uwb_rc_evt_bpoie_change *bpoiec;
 545        struct uwb_ie_bpo *bpoie;
 546        static unsigned count;  /* FIXME: this is a temp hack */
 547        size_t iesize;
 548
 549        /* Is there enough data to decode it? */
 550        if (evt->notif.size < sizeof(*bpoiec)) {
 551                dev_err(dev, "BPOIEC notification: Not enough data to "
 552                        "decode (%zu vs %zu bytes needed)\n",
 553                        evt->notif.size, sizeof(*bpoiec));
 554                goto error;
 555        }
 556        bpoiec = container_of(evt->notif.rceb, struct uwb_rc_evt_bpoie_change, rceb);
 557        iesize = le16_to_cpu(bpoiec->wBPOIELength);
 558        if (iesize < sizeof(*bpoie)) {
 559                dev_err(dev, "BPOIEC notification: Not enough IE data to "
 560                        "decode (%zu vs %zu bytes needed)\n",
 561                        iesize, sizeof(*bpoie));
 562                goto error;
 563        }
 564        if (++count % 1000 == 0)        /* Lame placeholder */
 565                dev_info(dev, "BPOIE: %u changes received\n", count);
 566        /*
 567         * FIXME: At this point we should go over all the IEs in the
 568         *        bpoiec->BPOIE array and act on each.
 569         */
 570        result = 0;
 571error:
 572        return result;
 573}
 574
 575/*
 576 * Print beaconing state.
 577 */
 578static ssize_t uwb_rc_beacon_show(struct device *dev,
 579                                  struct device_attribute *attr, char *buf)
 580{
 581        struct uwb_dev *uwb_dev = to_uwb_dev(dev);
 582        struct uwb_rc *rc = uwb_dev->rc;
 583        ssize_t result;
 584
 585        mutex_lock(&rc->uwb_dev.mutex);
 586        result = sprintf(buf, "%d\n", rc->beaconing);
 587        mutex_unlock(&rc->uwb_dev.mutex);
 588        return result;
 589}
 590
 591/*
 592 * Start beaconing on the specified channel, or stop beaconing.
 593 */
 594static ssize_t uwb_rc_beacon_store(struct device *dev,
 595                                   struct device_attribute *attr,
 596                                   const char *buf, size_t size)
 597{
 598        struct uwb_dev *uwb_dev = to_uwb_dev(dev);
 599        struct uwb_rc *rc = uwb_dev->rc;
 600        int channel;
 601        ssize_t result = -EINVAL;
 602
 603        result = sscanf(buf, "%d", &channel);
 604        if (result >= 1)
 605                result = uwb_radio_force_channel(rc, channel);
 606
 607        return result < 0 ? result : size;
 608}
 609DEVICE_ATTR(beacon, S_IRUGO | S_IWUSR, uwb_rc_beacon_show, uwb_rc_beacon_store);
 610
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