| /* |
| * Copyright (c) 2002-2014, 2016-2017 The Linux Foundation. All rights reserved. |
| * |
| * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| * |
| * |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all |
| * copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| /* |
| * This file was originally distributed by Qualcomm Atheros, Inc. |
| * under proprietary terms before Copyright ownership was assigned |
| * to the Linux Foundation. |
| */ |
| |
| /*=========================================================================== |
| |
| dfs_init.c |
| |
| OVERVIEW: |
| |
| Source code borrowed from QCA_MAIN DFS module |
| |
| DEPENDENCIES: |
| |
| Are listed for each API below. |
| |
| ===========================================================================*/ |
| |
| /*=========================================================================== |
| |
| EDIT HISTORY FOR FILE |
| |
| |
| This section contains comments describing changes made to the module. |
| Notice that changes are listed in reverse chronological order. |
| |
| |
| |
| when who what, where, why |
| ---------- --- -------------------------------------------------------- |
| |
| ===========================================================================*/ |
| |
| #include "dfs.h" |
| /* TO DO DFS |
| #include <ieee80211_var.h> |
| */ |
| #ifdef ATH_SUPPORT_DFS |
| |
| extern int domainoverride; |
| |
| /* |
| * Clear all delay lines for all filter types |
| * |
| * This may be called before any radar pulses are configured |
| * (eg on a non-DFS channel, with radar PHY errors still showing up.) |
| * In that case, just drop out early. |
| */ |
| void dfs_reset_alldelaylines(struct ath_dfs *dfs) |
| { |
| struct dfs_filtertype *ft = NULL; |
| struct dfs_filter *rf; |
| struct dfs_delayline *dl; |
| struct dfs_pulseline *pl; |
| int i,j; |
| |
| if (dfs == NULL) { |
| VOS_TRACE(VOS_MODULE_ID_SAP, VOS_TRACE_LEVEL_ERROR, |
| "%s[%d]: sc_dfs is NULL", __func__, __LINE__); |
| return; |
| } |
| pl = dfs->pulses; |
| |
| if (pl == NULL) { |
| VOS_TRACE(VOS_MODULE_ID_SAP, VOS_TRACE_LEVEL_ERROR, |
| "%s[%d]: pl==NULL, dfs=%pK", __func__, __LINE__, dfs); |
| return; |
| } |
| |
| if (dfs->dfs_b5radars == NULL) { |
| VOS_TRACE(VOS_MODULE_ID_SAP, VOS_TRACE_LEVEL_ERROR, |
| "%s[%d]: pl==NULL, b5radars=%pK", __func__, __LINE__, dfs->dfs_b5radars); |
| return; |
| } |
| |
| /* reset the pulse log */ |
| pl->pl_firstelem = pl->pl_numelems = 0; |
| pl->pl_lastelem = DFS_MAX_PULSE_BUFFER_MASK; |
| |
| for (i=0; i<DFS_MAX_RADAR_TYPES; i++) { |
| if (dfs->dfs_radarf[i] != NULL) { |
| ft = dfs->dfs_radarf[i]; |
| if (NULL != ft) { |
| for (j = 0; j < ft->ft_numfilters; j++) { |
| rf = ft->ft_filters[j]; |
| dl = &(rf->rf_dl); |
| if (dl != NULL) { |
| OS_MEMZERO(dl, sizeof(struct dfs_delayline)); |
| dl->dl_lastelem = (0xFFFFFFFF) & DFS_MAX_DL_MASK; |
| } |
| } |
| } |
| } |
| } |
| for (i = 0; i < DFS_MAX_RADAR_TYPES; i++) { |
| if (dfs->dfs_dc_radarf[i] == NULL) |
| continue; |
| |
| ft = dfs->dfs_dc_radarf[i]; |
| for (j = 0; j < ft->ft_numfilters; j++) { |
| rf = ft->ft_filters[j]; |
| dl = &(rf->rf_dl); |
| if (dl == NULL) |
| continue; |
| |
| OS_MEMZERO(dl, sizeof(struct dfs_delayline)); |
| dl->dl_lastelem = (0xFFFFFFFF) & DFS_MAX_DL_MASK; |
| } |
| } |
| |
| for (i = 0; i < dfs->dfs_rinfo.rn_numbin5radars; i++) { |
| OS_MEMZERO(&(dfs->dfs_b5radars[i].br_elems[0]), sizeof(struct dfs_bin5elem)*DFS_MAX_B5_SIZE); |
| dfs->dfs_b5radars[i].br_firstelem = 0; |
| dfs->dfs_b5radars[i].br_numelems = 0; |
| dfs->dfs_b5radars[i].br_lastelem = (0xFFFFFFFF)&DFS_MAX_B5_MASK; |
| } |
| } |
| /* |
| * Clear only a single delay line |
| */ |
| |
| void dfs_reset_delayline(struct dfs_delayline *dl) |
| { |
| OS_MEMZERO(&(dl->dl_elems[0]), sizeof(dl->dl_elems)); |
| dl->dl_lastelem = (0xFFFFFFFF)&DFS_MAX_DL_MASK; |
| } |
| |
| void dfs_reset_filter_delaylines(struct dfs_filtertype *dft) |
| { |
| int i; |
| struct dfs_filter *df; |
| for (i=0; i< DFS_MAX_NUM_RADAR_FILTERS; i++) { |
| df = dft->ft_filters[i]; |
| dfs_reset_delayline(&(df->rf_dl)); |
| } |
| } |
| |
| void |
| dfs_reset_radarq(struct ath_dfs *dfs) |
| { |
| struct dfs_event *event; |
| if (dfs == NULL) { |
| DFS_DPRINTK(dfs, ATH_DEBUG_DFS, "%s: sc_dfs is NULL", __func__); |
| return; |
| } |
| ATH_DFSQ_LOCK(dfs); |
| ATH_DFSEVENTQ_LOCK(dfs); |
| while (!STAILQ_EMPTY(&(dfs->dfs_radarq))) { |
| event = STAILQ_FIRST(&(dfs->dfs_radarq)); |
| STAILQ_REMOVE_HEAD(&(dfs->dfs_radarq), re_list); |
| OS_MEMZERO(event, sizeof(struct dfs_event)); |
| STAILQ_INSERT_TAIL(&(dfs->dfs_eventq), event, re_list); |
| } |
| ATH_DFSEVENTQ_UNLOCK(dfs); |
| ATH_DFSQ_UNLOCK(dfs); |
| } |
| |
| |
| /* This function Initialize the radar filter tables |
| * if the ath dfs domain is uninitalized or |
| * ath dfs domain is different from hal dfs domain |
| */ |
| int dfs_init_radar_filters(struct ieee80211com *ic, |
| struct ath_dfs_radar_tab_info *radar_info) |
| { |
| u_int32_t T, Tmax; |
| int numpulses,p,n, i; |
| int numradars = 0, numb5radars = 0; |
| struct ath_dfs *dfs = (struct ath_dfs *)ic->ic_dfs; |
| struct dfs_filtertype *ft = NULL; |
| struct dfs_filter *rf=NULL; |
| struct dfs_pulse *dfs_radars; |
| struct dfs_bin5pulse *b5pulses=NULL; |
| int32_t min_rssithresh=DFS_MAX_RSSI_VALUE; |
| u_int32_t max_pulsedur=0; |
| |
| if (dfs == NULL) { |
| VOS_TRACE(VOS_MODULE_ID_SAP, VOS_TRACE_LEVEL_ERROR, |
| "%s[%d]: dfs is NULL", __func__, __LINE__); |
| return DFS_STATUS_FAIL; |
| } |
| /* clear up the dfs domain flag first */ |
| #ifndef ATH_DFS_RADAR_DETECTION_ONLY |
| dfs->ath_dfs_isdfsregdomain = 0; |
| #endif |
| |
| /* |
| * If radar_info is NULL or dfsdomain is NULL, treat |
| * the rest of the radar configuration as suspect. |
| */ |
| if (radar_info == NULL || radar_info->dfsdomain == 0) { |
| VOS_TRACE(VOS_MODULE_ID_SAP, VOS_TRACE_LEVEL_ERROR, |
| "%s[%d]: Unknown dfs domain %d ", |
| __func__, __LINE__, dfs->dfsdomain); |
| /* Disable radar detection since we don't have a radar domain */ |
| dfs->dfs_proc_phyerr &= ~DFS_RADAR_EN; |
| /* Returning success though we are not completing init. A failure |
| * will fail dfs_attach also. |
| */ |
| return DFS_STATUS_SUCCESS; |
| } |
| |
| VOS_TRACE(VOS_MODULE_ID_SAP, VOS_TRACE_LEVEL_INFO, |
| "%s[%d]:dfsdomain=%d, numradars=%d, numb5radars=%d", |
| __func__, __LINE__, radar_info->dfsdomain, |
| radar_info->numradars, radar_info->numb5radars); |
| dfs->dfsdomain = radar_info->dfsdomain; |
| dfs_radars = radar_info->dfs_radars; |
| numradars = radar_info->numradars; |
| b5pulses = radar_info->b5pulses; |
| numb5radars = radar_info->numb5radars; |
| |
| /* XXX this should be an explicit copy of some sort! */ |
| dfs->dfs_defaultparams = radar_info->dfs_defaultparams; |
| |
| #ifndef ATH_DFS_RADAR_DETECTION_ONLY |
| dfs->ath_dfs_isdfsregdomain = 1; |
| #endif |
| |
| dfs->dfs_rinfo.rn_numradars = 0; |
| /* Clear filter type table */ |
| for (n = 0; n < 256; n++) { |
| for (i=0;i<DFS_MAX_RADAR_OVERLAP; i++) |
| (dfs->dfs_radartable[n])[i] = -1; |
| } |
| /* Clear dc filter type table */ |
| for (n = 0; n < 256; n++) { |
| for (i = 0;i < DFS_MAX_RADAR_OVERLAP; i++) |
| (dfs->dfs_dc_radartable[n])[i] = -1; |
| } |
| |
| /* Now, initialize the radar filters */ |
| for (p=0; p<numradars; p++) { |
| ft = NULL; |
| for (n=0; n<dfs->dfs_rinfo.rn_numradars; n++) { |
| if ((dfs_radars[p].rp_pulsedur == dfs->dfs_radarf[n]->ft_filterdur) && |
| (dfs_radars[p].rp_numpulses == dfs->dfs_radarf[n]->ft_numpulses) && |
| (dfs_radars[p].rp_mindur == dfs->dfs_radarf[n]->ft_mindur) && |
| (dfs_radars[p].rp_maxdur == dfs->dfs_radarf[n]->ft_maxdur)) { |
| ft = dfs->dfs_radarf[n]; |
| break; |
| } |
| } |
| if (ft == NULL) { |
| /* No filter of the appropriate dur was found */ |
| if ((dfs->dfs_rinfo.rn_numradars+1) >DFS_MAX_RADAR_TYPES) { |
| DFS_DPRINTK(dfs, ATH_DEBUG_DFS, "%s: Too many filter types", |
| __func__); |
| goto bad4; |
| } |
| ft = dfs->dfs_radarf[dfs->dfs_rinfo.rn_numradars]; |
| ft->ft_numfilters = 0; |
| ft->ft_numpulses = dfs_radars[p].rp_numpulses; |
| ft->ft_patterntype = dfs_radars[p].rp_patterntype; |
| ft->ft_mindur = dfs_radars[p].rp_mindur; |
| ft->ft_maxdur = dfs_radars[p].rp_maxdur; |
| ft->ft_filterdur = dfs_radars[p].rp_pulsedur; |
| ft->ft_rssithresh = dfs_radars[p].rp_rssithresh; |
| ft->ft_rssimargin = dfs_radars[p].rp_rssimargin; |
| ft->ft_minpri = 1000000; |
| |
| if (ft->ft_rssithresh < min_rssithresh) |
| min_rssithresh = ft->ft_rssithresh; |
| if (ft->ft_maxdur > max_pulsedur) |
| max_pulsedur = ft->ft_maxdur; |
| for (i=ft->ft_mindur; i<=ft->ft_maxdur; i++) { |
| u_int32_t stop=0,tableindex=0; |
| while ((tableindex < DFS_MAX_RADAR_OVERLAP) && (!stop)) { |
| if ((dfs->dfs_radartable[i])[tableindex] == -1) |
| stop = 1; |
| else |
| tableindex++; |
| } |
| if (stop) { |
| (dfs->dfs_radartable[i])[tableindex] = |
| (int8_t) (dfs->dfs_rinfo.rn_numradars); |
| } else { |
| DFS_DPRINTK(dfs, ATH_DEBUG_DFS, |
| "%s: Too many overlapping radar filters", |
| __func__); |
| goto bad4; |
| } |
| } |
| dfs->dfs_rinfo.rn_numradars++; |
| } |
| rf = ft->ft_filters[ft->ft_numfilters++]; |
| dfs_reset_delayline(&rf->rf_dl); |
| numpulses = dfs_radars[p].rp_numpulses; |
| |
| rf->rf_numpulses = numpulses; |
| rf->rf_patterntype = dfs_radars[p].rp_patterntype; |
| rf->rf_sidx_spread = dfs_radars[p].rp_sidx_spread; |
| rf->rf_check_delta_peak = dfs_radars[p].rp_check_delta_peak; |
| rf->rf_pulseid = dfs_radars[p].rp_pulseid; |
| rf->rf_mindur = dfs_radars[p].rp_mindur; |
| rf->rf_maxdur = dfs_radars[p].rp_maxdur; |
| rf->rf_numpulses = dfs_radars[p].rp_numpulses; |
| rf->rf_ignore_pri_window = dfs_radars[p].rp_ignore_pri_window; |
| T = (100000000/dfs_radars[p].rp_max_pulsefreq) - |
| 100*(dfs_radars[p].rp_meanoffset); |
| rf->rf_minpri = |
| dfs_round((int32_t)T - (100*(dfs_radars[p].rp_pulsevar))); |
| Tmax = (100000000/dfs_radars[p].rp_pulsefreq) - |
| 100*(dfs_radars[p].rp_meanoffset); |
| rf->rf_maxpri = |
| dfs_round((int32_t)Tmax + (100*(dfs_radars[p].rp_pulsevar))); |
| |
| if( rf->rf_minpri < ft->ft_minpri ) |
| ft->ft_minpri = rf->rf_minpri; |
| |
| rf->rf_fixed_pri_radar_pulse = ( dfs_radars[p].rp_max_pulsefreq == dfs_radars[p].rp_pulsefreq ) ? 1 : 0; |
| rf->rf_threshold = dfs_radars[p].rp_threshold; |
| rf->rf_filterlen = rf->rf_maxpri * rf->rf_numpulses; |
| |
| VOS_TRACE(VOS_MODULE_ID_SAP, VOS_TRACE_LEVEL_INFO, "%s[%d]: minprf = %d maxprf = %d pulsevar = %d thresh=%d", |
| __func__,__LINE__,dfs_radars[p].rp_pulsefreq, dfs_radars[p].rp_max_pulsefreq, |
| dfs_radars[p].rp_pulsevar, rf->rf_threshold); |
| VOS_TRACE(VOS_MODULE_ID_SAP, VOS_TRACE_LEVEL_INFO, "%s[%d]:minpri = %d maxpri = %d filterlen = %d filterID = %d",__func__,__LINE__, |
| rf->rf_minpri, rf->rf_maxpri, rf->rf_filterlen, rf->rf_pulseid); |
| |
| } |
| |
| /* Initialize dc radar filters */ |
| for (p = 0; p < numradars; p++) { |
| ft = NULL; |
| for (n = 0; n < dfs->dfs_rinfo.rn_numradars; n++) { |
| if ((dfs_radars[p].rp_pulsedur == |
| dfs->dfs_dc_radarf[n]->ft_filterdur) && |
| (dfs_radars[p].rp_numpulses == |
| dfs->dfs_dc_radarf[n]->ft_numpulses) && |
| (dfs_radars[p].rp_mindur == dfs->dfs_dc_radarf[n]->ft_mindur) && |
| (dfs_radars[p].rp_maxdur == dfs->dfs_dc_radarf[n]->ft_maxdur)) { |
| |
| ft = dfs->dfs_dc_radarf[n]; |
| break; |
| } |
| } |
| if (ft == NULL) { |
| /* No filter of the appropriate dur was found */ |
| if ((dfs->dfs_rinfo.rn_numradars+1) > DFS_MAX_RADAR_TYPES) { |
| DFS_DPRINTK(dfs, ATH_DEBUG_DFS, "%s: Too many filter types", |
| __func__); |
| goto bad4; |
| } |
| ft = dfs->dfs_dc_radarf[dfs->dfs_rinfo.rn_numradars]; |
| ft->ft_numfilters = 0; |
| ft->ft_numpulses = dfs_radars[p].rp_numpulses; |
| ft->ft_patterntype = dfs_radars[p].rp_patterntype; |
| ft->ft_mindur = dfs_radars[p].rp_mindur; |
| ft->ft_maxdur = dfs_radars[p].rp_maxdur; |
| ft->ft_filterdur = dfs_radars[p].rp_pulsedur; |
| ft->ft_rssithresh = dfs_radars[p].rp_rssithresh; |
| ft->ft_rssimargin = dfs_radars[p].rp_rssimargin; |
| ft->ft_minpri = DFS_FILTER_DEFAULT_PRI; |
| |
| if (ft->ft_rssithresh < min_rssithresh) |
| min_rssithresh = ft->ft_rssithresh; |
| if (ft->ft_maxdur > max_pulsedur) |
| max_pulsedur = ft->ft_maxdur; |
| for (i = ft->ft_mindur; i <= ft->ft_maxdur; i++) { |
| u_int32_t stop = 0, tableindex = 0; |
| |
| while ((tableindex < DFS_MAX_RADAR_OVERLAP) && (!stop)) { |
| if ((dfs->dfs_dc_radartable[i])[tableindex] == -1) |
| stop = 1; |
| else |
| tableindex++; |
| } |
| if (stop) { |
| (dfs->dfs_dc_radartable[i])[tableindex] = |
| (int8_t) (dfs->dfs_rinfo.rn_numradars); |
| } else { |
| DFS_DPRINTK(dfs, ATH_DEBUG_DFS, |
| "%s: Too many overlapping dc radar filters", |
| __func__); |
| goto bad4; |
| } |
| } |
| dfs->dfs_rinfo.rn_numradars++; |
| } |
| rf = ft->ft_filters[ft->ft_numfilters++]; |
| dfs_reset_delayline(&rf->rf_dl); |
| numpulses = dfs_radars[p].rp_numpulses; |
| |
| rf->rf_numpulses = numpulses; |
| rf->rf_patterntype = dfs_radars[p].rp_patterntype; |
| rf->rf_sidx_spread = dfs_radars[p].rp_sidx_spread; |
| rf->rf_check_delta_peak = dfs_radars[p].rp_check_delta_peak; |
| rf->rf_pulseid = dfs_radars[p].rp_pulseid; |
| rf->rf_mindur = dfs_radars[p].rp_mindur; |
| rf->rf_maxdur = dfs_radars[p].rp_maxdur; |
| rf->rf_numpulses = dfs_radars[p].rp_numpulses; |
| rf->rf_ignore_pri_window = dfs_radars[p].rp_ignore_pri_window; |
| T = (100000000/dfs_radars[p].rp_max_pulsefreq) - |
| 100*(dfs_radars[p].rp_meanoffset); |
| rf->rf_minpri = |
| dfs_round((int32_t)T - (100*(dfs_radars[p].rp_pulsevar))); |
| Tmax = (100000000/dfs_radars[p].rp_pulsefreq) - |
| 100*(dfs_radars[p].rp_meanoffset); |
| rf->rf_maxpri = |
| dfs_round((int32_t)Tmax + (100*(dfs_radars[p].rp_pulsevar))); |
| |
| if(rf->rf_minpri < ft->ft_minpri) |
| ft->ft_minpri = rf->rf_minpri; |
| |
| rf->rf_fixed_pri_radar_pulse = |
| (dfs_radars[p].rp_max_pulsefreq == |
| dfs_radars[p].rp_pulsefreq) ? 1 : 0; |
| /* for pulseid 5, increase threshould by 1 */ |
| if (dfs_radars[p].rp_pulseid == 5) |
| rf->rf_threshold = dfs_radars[p].rp_threshold + 1; |
| else |
| rf->rf_threshold = dfs_radars[p].rp_threshold; |
| |
| rf->rf_filterlen = rf->rf_maxpri * rf->rf_numpulses; |
| |
| VOS_TRACE(VOS_MODULE_ID_SAP, VOS_TRACE_LEVEL_INFO, "%s[%d]: minprf = %d maxprf = %d pulsevar = %d thresh=%d", |
| __func__, __LINE__, dfs_radars[p].rp_pulsefreq, |
| dfs_radars[p].rp_max_pulsefreq, dfs_radars[p].rp_pulsevar, |
| rf->rf_threshold); |
| VOS_TRACE(VOS_MODULE_ID_SAP, VOS_TRACE_LEVEL_INFO, "%s[%d]:minpri = %d maxpri = %d filterlen = %d filterID = %d", |
| __func__, __LINE__, rf->rf_minpri, rf->rf_maxpri, |
| rf->rf_filterlen, rf->rf_pulseid); |
| |
| } |
| #ifdef DFS_DEBUG |
| dfs_print_filters(dfs); |
| #endif |
| dfs->dfs_rinfo.rn_numbin5radars = numb5radars; |
| if (dfs->dfs_b5radars != NULL) |
| OS_FREE(dfs->dfs_b5radars); |
| |
| dfs->dfs_b5radars = (struct dfs_bin5radars *)OS_MALLOC(NULL, |
| numb5radars * sizeof(struct dfs_bin5radars), GFP_KERNEL); |
| if (dfs->dfs_b5radars == NULL) { |
| DFS_DPRINTK(dfs, ATH_DEBUG_DFS, |
| "%s: cannot allocate memory for bin5 radars", |
| __func__); |
| goto bad4; |
| } |
| for (n=0; n<numb5radars; n++) { |
| dfs->dfs_b5radars[n].br_pulse = b5pulses[n]; |
| dfs->dfs_b5radars[n].br_pulse.b5_timewindow *= 1000000; |
| if (dfs->dfs_b5radars[n].br_pulse.b5_rssithresh < min_rssithresh) |
| min_rssithresh = dfs->dfs_b5radars[n].br_pulse.b5_rssithresh; |
| if (dfs->dfs_b5radars[n].br_pulse.b5_maxdur > max_pulsedur) |
| max_pulsedur = dfs->dfs_b5radars[n].br_pulse.b5_maxdur; |
| } |
| dfs_reset_alldelaylines(dfs); |
| dfs_reset_radarq(dfs); |
| dfs->dfs_curchan_radindex = -1; |
| dfs->dfs_extchan_radindex = -1; |
| dfs->dfs_rinfo.rn_minrssithresh = min_rssithresh; |
| /* Convert durations to TSF ticks */ |
| dfs->dfs_rinfo.rn_maxpulsedur = dfs_round((int32_t)((max_pulsedur*100/80)*100)); |
| /* relax the max pulse duration a little bit due to inaccuracy caused by chirping. */ |
| dfs->dfs_rinfo.rn_maxpulsedur = dfs->dfs_rinfo.rn_maxpulsedur +20; |
| VOS_TRACE(VOS_MODULE_ID_SAP, VOS_TRACE_LEVEL_INFO, |
| "%s[%d]: DFS min filter rssiThresh = %d", |
| __func__, __LINE__, min_rssithresh); |
| VOS_TRACE(VOS_MODULE_ID_SAP, VOS_TRACE_LEVEL_INFO, |
| "%s[%d]:DFS max pulse dur = %d ticks", |
| __func__ ,__LINE__, dfs->dfs_rinfo.rn_maxpulsedur); |
| return DFS_STATUS_SUCCESS; |
| |
| bad4: |
| return DFS_STATUS_FAIL; |
| } |
| |
| void |
| dfs_clear_stats(struct ieee80211com *ic) |
| { |
| struct ath_dfs *dfs = (struct ath_dfs *)ic->ic_dfs; |
| if (dfs == NULL) |
| return; |
| OS_MEMZERO(&dfs->ath_dfs_stats, sizeof (struct dfs_stats)); |
| dfs->ath_dfs_stats.last_reset_tstamp = ic->ic_get_TSF64(ic); |
| } |
| |
| #endif /* ATH_SUPPORT_DFS */ |
