/*
* This is called each time a channel change occurs, to (potentially) enable
* the radar code.
*/
int dfs_radar_enable(struct ieee80211com *ic,
struct ath_dfs_radar_tab_info *radar_info, int no_cac)
{
int is_ext_ch=IEEE80211_IS_CHAN_11N_HT40(ic->ic_curchan);
int is_fastclk = 0;
//u_int32_t rfilt;
struct ath_dfs *dfs=(struct ath_dfs *)ic->ic_dfs;
struct ieee80211_channel *chan=ic->ic_curchan, *ext_ch = NULL;
if (dfs == NULL) {
DFS_DPRINTK(dfs, ATH_DEBUG_DFS, "%s: ic_dfs is NULL\n",
__func__);
return -EIO;
}
ic->ic_dfs_disable(ic, no_cac);
/*
* Setting country code might change the DFS domain
* so initialize the DFS Radar filters
*/
dfs_init_radar_filters(ic, radar_info);
#if ATH_SUPPORT_DFS && ATH_SUPPORT_STA_DFS
if ((ic->ic_opmode == IEEE80211_M_HOSTAP || ic->ic_opmode == IEEE80211_M_IBSS ||
(ic->ic_opmode == IEEE80211_M_STA && ieee80211com_has_cap_ext(dfs->ic,IEEE80211_CEXT_STADFS)))) {
#else
if ((ic->ic_opmode == IEEE80211_M_HOSTAP || ic->ic_opmode == IEEE80211_M_IBSS)) {
#endif
if (IEEE80211_IS_CHAN_DFS(chan)) {
struct dfs_state *rs_pri=NULL, *rs_ext=NULL;
u_int8_t index_pri, index_ext;
#ifdef ATH_ENABLE_AR
dfs->dfs_proc_phyerr |= DFS_AR_EN;
#endif
dfs->dfs_proc_phyerr |= DFS_RADAR_EN;
//printk( "%s[%d]: ==== 0x%08x\n", __func__, __LINE__, dfs->dfs_proc_phyerr);
if (is_ext_ch) {
ext_ch = ieee80211_get_extchan(ic);
}
dfs_reset_alldelaylines(dfs);
rs_pri = dfs_getchanstate(dfs, &index_pri, 0);
if (ext_ch) {
rs_ext = dfs_getchanstate(dfs, &index_ext, 1);
}
if (rs_pri != NULL && ((ext_ch==NULL)||(rs_ext != NULL))) {
struct ath_dfs_phyerr_param pe;
OS_MEMSET(&pe, '\0', sizeof(pe));
if (index_pri != dfs->dfs_curchan_radindex)
dfs_reset_alldelaylines(dfs);
dfs->dfs_curchan_radindex = (int16_t) index_pri;
if (rs_ext)
dfs->dfs_extchan_radindex = (int16_t) index_ext;
ath_dfs_phyerr_param_copy(&pe,
&rs_pri->rs_param);
DFS_DPRINTK(dfs, ATH_DEBUG_DFS3,
"%s: firpwr=%d, rssi=%d, height=%d, "
"prssi=%d, inband=%d, relpwr=%d, "
"relstep=%d, maxlen=%d\n",
__func__,
pe.pe_firpwr,
pe.pe_rrssi,
pe.pe_height,
pe.pe_prssi,
pe.pe_inband,
pe.pe_relpwr,
pe.pe_relstep,
pe.pe_maxlen
);
#if 0 //Not needed
/* Disable strong signal fast antenna diversity */
ath_hal_setcapability(ah, HAL_CAP_DIVERSITY,
HAL_CAP_STRONG_DIV, 1, NULL);
#endif
ic->ic_dfs_enable(ic, &is_fastclk, &pe);
DFS_DPRINTK(dfs, ATH_DEBUG_DFS, "Enabled radar detection on channel %d\n",
chan->ic_freq);
dfs->dur_multiplier = is_fastclk ? DFS_FAST_CLOCK_MULTIPLIER : DFS_NO_FAST_CLOCK_MULTIPLIER;
DFS_DPRINTK(dfs, ATH_DEBUG_DFS3,
"%s: duration multiplier is %d\n", __func__, dfs->dur_multiplier);
} else
DFS_DPRINTK(dfs, ATH_DEBUG_DFS, "%s: No more radar states left\n",
__func__);
}
}
return 0;
}
int
dfs_control(struct ieee80211com *ic, u_int id,
void *indata, u_int32_t insize,
void *outdata, u_int32_t *outsize)
{
int error = 0;
struct ath_dfs_phyerr_param peout;
struct ath_dfs *dfs = (struct ath_dfs *)ic->ic_dfs;
struct dfs_ioctl_params *dfsparams;
u_int32_t val=0;
#ifndef ATH_DFS_RADAR_DETECTION_ONLY
struct dfsreq_nolinfo *nol;
u_int32_t *data = NULL;
#endif /* ATH_DFS_RADAR_DETECTION_ONLY */
int i;
if (dfs == NULL) {
DFS_DPRINTK(dfs, ATH_DEBUG_DFS1, "%s DFS is null\n", __func__);
/* Enable/Disable DFS can be done prior to attach, So handle here */
switch (id) {
case DFS_DISABLE_DETECT:
ic->ic_dfs_state.ignore_dfs = 1;
DFS_PRINTK("%s enable detects, ignore_dfs %d\n",
__func__,
ic->ic_dfs_state.ignore_dfs ? 1:0);
break;
case DFS_ENABLE_DETECT:
ic->ic_dfs_state.ignore_dfs = 0;
DFS_PRINTK("%s enable detects, ignore_dfs %d\n",
__func__,
ic->ic_dfs_state.ignore_dfs ? 1:0);
break;
default:
error = -EINVAL;
break;
}
goto bad;
}
//printk("%s[%d] id =%d\n", __func__, __LINE__, id);
switch (id) {
case DFS_SET_THRESH:
if (insize < sizeof(struct dfs_ioctl_params) || !indata) {
DFS_DPRINTK(dfs, ATH_DEBUG_DFS1,
"%s: insize=%d, expected=%d bytes, indata=%p\n",
__func__, insize, sizeof(struct dfs_ioctl_params),
indata);
error = -EINVAL;
break;
}
dfsparams = (struct dfs_ioctl_params *) indata;
if (!dfs_set_thresholds(ic, DFS_PARAM_FIRPWR, dfsparams->dfs_firpwr))
error = -EINVAL;
if (!dfs_set_thresholds(ic, DFS_PARAM_RRSSI, dfsparams->dfs_rrssi))
error = -EINVAL;
if (!dfs_set_thresholds(ic, DFS_PARAM_HEIGHT, dfsparams->dfs_height))
error = -EINVAL;
if (!dfs_set_thresholds(ic, DFS_PARAM_PRSSI, dfsparams->dfs_prssi))
error = -EINVAL;
if (!dfs_set_thresholds(ic, DFS_PARAM_INBAND, dfsparams->dfs_inband))
error = -EINVAL;
/* 5413 speicfic */
if (!dfs_set_thresholds(ic, DFS_PARAM_RELPWR, dfsparams->dfs_relpwr))
error = -EINVAL;
if (!dfs_set_thresholds(ic, DFS_PARAM_RELSTEP, dfsparams->dfs_relstep))
error = -EINVAL;
if (!dfs_set_thresholds(ic, DFS_PARAM_MAXLEN, dfsparams->dfs_maxlen))
error = -EINVAL;
break;
case DFS_GET_THRESH:
if (!outdata || !outsize || *outsize <sizeof(struct dfs_ioctl_params)) {
error = -EINVAL;
break;
}
*outsize = sizeof(struct dfs_ioctl_params);
dfsparams = (struct dfs_ioctl_params *) outdata;
/*
* Fetch the DFS thresholds using the internal representation.
*/
(void) dfs_get_thresholds(ic, &peout);
/*
* Convert them to the dfs IOCTL representation.
*/
ath_dfs_dfsparam_to_ioctlparam(&peout, dfsparams);
break;
case DFS_RADARDETECTS:
if (!outdata || !outsize || *outsize < sizeof(u_int32_t)) {
error = -EINVAL;
break;
}
*outsize = sizeof (u_int32_t);
*((u_int32_t *)outdata) = dfs->ath_dfs_stats.num_radar_detects;
break;
case DFS_DISABLE_DETECT:
dfs->dfs_proc_phyerr &= ~DFS_RADAR_EN;
dfs->ic->ic_dfs_state.ignore_dfs = 1;
DFS_PRINTK("%s enable detects, ignore_dfs %d\n",
__func__,
dfs->ic->ic_dfs_state.ignore_dfs ? 1:0);
break;
case DFS_ENABLE_DETECT:
dfs->dfs_proc_phyerr |= DFS_RADAR_EN;
dfs->ic->ic_dfs_state.ignore_dfs = 0;
DFS_PRINTK("%s enable detects, ignore_dfs %d\n",
__func__,
dfs->ic->ic_dfs_state.ignore_dfs ? 1:0);
break;
case DFS_DISABLE_FFT:
//UMACDFS: TODO: val = ath_hal_dfs_config_fft(sc->sc_ah, false);
DFS_PRINTK("%s TODO disable FFT val=0x%x \n", __func__, val);
break;
case DFS_ENABLE_FFT:
//UMACDFS TODO: val = ath_hal_dfs_config_fft(sc->sc_ah, true);
DFS_PRINTK("%s TODO enable FFT val=0x%x \n", __func__, val);
break;
case DFS_SET_DEBUG_LEVEL:
if (insize < sizeof(u_int32_t) || !indata) {
error = -EINVAL;
break;
}
dfs->dfs_debug_mask= *(u_int32_t *)indata;
DFS_PRINTK("%s debug level now = 0x%x \n",
__func__,
dfs->dfs_debug_mask);
if (dfs->dfs_debug_mask & ATH_DEBUG_DFS3) {
/* Enable debug Radar Event */
dfs->dfs_event_log_on = 1;
} else {
dfs->dfs_event_log_on = 0;
}
break;
case DFS_SET_FALSE_RSSI_THRES:
if (insize < sizeof(u_int32_t) || !indata) {
error = -EINVAL;
break;
}
dfs->ath_dfs_false_rssi_thres= *(u_int32_t *)indata;
DFS_PRINTK("%s false RSSI threshold now = 0x%x \n",
__func__,
dfs->ath_dfs_false_rssi_thres);
break;
case DFS_SET_PEAK_MAG:
if (insize < sizeof(u_int32_t) || !indata) {
error = -EINVAL;
break;
}
dfs->ath_dfs_peak_mag= *(u_int32_t *)indata;
DFS_PRINTK("%s peak_mag now = 0x%x \n",
__func__,
dfs->ath_dfs_peak_mag);
break;
case DFS_GET_CAC_VALID_TIME:
if (!outdata || !outsize || *outsize < sizeof(u_int32_t)) {
error = -EINVAL;
break;
}
*outsize = sizeof (u_int32_t);
*((u_int32_t *)outdata) = dfs->ic->ic_dfs_state.cac_valid_time;
break;
case DFS_SET_CAC_VALID_TIME:
if (insize < sizeof(u_int32_t) || !indata) {
error = -EINVAL;
break;
}
dfs->ic->ic_dfs_state.cac_valid_time = *(u_int32_t *)indata;
DFS_PRINTK("%s dfs timeout = %d \n",
__func__,
dfs->ic->ic_dfs_state.cac_valid_time);
break;
case DFS_IGNORE_CAC:
if (insize < sizeof(u_int32_t) || !indata) {
error = -EINVAL;
break;
}
if (*(u_int32_t *)indata) {
dfs->ic->ic_dfs_state.ignore_cac= 1;
} else {
dfs->ic->ic_dfs_state.ignore_cac= 0;
}
DFS_PRINTK("%s ignore cac = 0x%x \n",
__func__,
dfs->ic->ic_dfs_state.ignore_cac);
break;
case DFS_SET_NOL_TIMEOUT:
if (insize < sizeof(u_int32_t) || !indata) {
error = -EINVAL;
break;
}
if (*(int *)indata) {
dfs->ath_dfs_nol_timeout= *(int *)indata;
} else {
dfs->ath_dfs_nol_timeout= DFS_NOL_TIMEOUT_S;
}
DFS_PRINTK("%s nol timeout = %d sec \n",
__func__,
dfs->ath_dfs_nol_timeout);
break;
#ifndef ATH_DFS_RADAR_DETECTION_ONLY
case DFS_MUTE_TIME:
if (insize < sizeof(u_int32_t) || !indata) {
error = -EINVAL;
break;
}
data = (u_int32_t *) indata;
dfs->ath_dfstesttime = *data;
dfs->ath_dfstesttime *= (1000); //convert sec into ms
break;
case DFS_GET_USENOL:
if (!outdata || !outsize || *outsize < sizeof(u_int32_t)) {
error = -EINVAL;
break;
}
*outsize = sizeof(u_int32_t);
*((u_int32_t *)outdata) = dfs->dfs_rinfo.rn_use_nol;
printk("%s:#Phyerr=%d, #false detect=%d, #queued=%d\n", __func__,dfs->dfs_phyerr_count, dfs->dfs_phyerr_reject_count, dfs->dfs_phyerr_queued_count);
printk("%s:dfs_phyerr_freq_min=%d, dfs_phyerr_freq_max=%d\n", __func__,dfs->dfs_phyerr_freq_min, dfs->dfs_phyerr_freq_max);
printk("%s:Total radar events detected=%d, entries in the radar queue follows:\n", __func__,dfs->dfs_event_log_count);
for (i = 0; (i < DFS_EVENT_LOG_SIZE) && (i < dfs->dfs_event_log_count); i++) {
//DFS_DPRINTK(sc, ATH_DEBUG_DFS,"ts=%llu diff_ts=%u rssi=%u dur=%u\n", dfs->radar_log[i].ts, dfs->radar_log[i].diff_ts, dfs->radar_log[i].rssi, dfs->radar_log[i].dur);
printk("ts=%llu diff_ts=%u rssi=%u dur=%u\n", dfs->radar_log[i].ts, dfs->radar_log[i].diff_ts, dfs->radar_log[i].rssi, dfs->radar_log[i].dur);
}
dfs->dfs_event_log_count = 0;
dfs->dfs_phyerr_count = 0;
dfs->dfs_phyerr_reject_count = 0;
dfs->dfs_phyerr_queued_count = 0;
dfs->dfs_phyerr_freq_min = 0x7fffffff;
dfs->dfs_phyerr_freq_max = 0;
break;
case DFS_SET_USENOL:
if (insize < sizeof(u_int32_t) || !indata) {
error = -EINVAL;
break;
}
dfs->dfs_rinfo.rn_use_nol = *(u_int32_t *)indata;
/* iwpriv markdfs in linux can do the same thing... */
break;
case DFS_GET_NOL:
if (!outdata || !outsize || *outsize < sizeof(struct dfsreq_nolinfo)) {
error = -EINVAL;
break;
}
*outsize = sizeof(struct dfsreq_nolinfo);
nol = (struct dfsreq_nolinfo *)outdata;
dfs_get_nol(dfs, (struct dfsreq_nolelem *)nol->dfs_nol, &nol->ic_nchans);
dfs_print_nol(dfs);
break;
case DFS_SET_NOL:
if (insize < sizeof(struct dfsreq_nolinfo) || !indata) {
error = -EINVAL;
break;
}
nol = (struct dfsreq_nolinfo *) indata;
dfs_set_nol(dfs, (struct dfsreq_nolelem *)nol->dfs_nol, nol->ic_nchans);
break;
case DFS_SHOW_NOL:
dfs_print_nol(dfs);
break;
#if ATH_SUPPORT_DFS && ATH_SUPPORT_STA_DFS
case DFS_SHOW_NOLHISTORY:
dfs_print_nolhistory(ic,dfs);
break;
#endif
case DFS_BANGRADAR:
#if 0 //MERGE_TBD
if(sc->sc_nostabeacons)
{
printk("No radar detection Enabled \n");
break;
}
#endif
dfs->dfs_bangradar = 1;
dfs->ath_radar_tasksched = 1;
OS_SET_TIMER(&dfs->ath_dfs_task_timer, 0);
break;
#endif /* ATH_DFS_RADAR_DETECTION_ONLY */
default:
error = -EINVAL;
}
bad:
return error;
}
int
dfs_attach(struct ath_softc *sc)
{
int i, n;
struct ath_dfs *dfs = sc->sc_dfs;
#define N(a) (sizeof(a)/sizeof(a[0]))
if (dfs != NULL) {
DFS_DPRINTK(sc, ATH_DEBUG_DFS, "%s: sc_dfs was not NULL\n",
__func__);
return 1;
}
dfs = (struct ath_dfs *)OS_MALLOC(sc->sc_osdev, sizeof(struct ath_dfs), GFP_KERNEL);
if (dfs == NULL) {
DFS_DPRINTK(sc, ATH_DEBUG_DFS,
"%s: ath_dfs allocation failed\n", __func__);
return 1;
}
OS_MEMZERO(dfs, sizeof (struct ath_dfs));
sc->sc_dfs = dfs;
dfs->dfs_nol=NULL;
dfs_clear_stats(sc);
/* Get capability information - can extension channel radar be detected and should we use combined radar RSSI or not.*/
if (ath_hal_getcapability(sc->sc_ah, HAL_CAP_COMBINED_RADAR_RSSI, 0, 0)
== HAL_OK) {
sc->sc_dfs->sc_dfs_combined_rssi_ok = 1;
} else {
sc->sc_dfs->sc_dfs_combined_rssi_ok = 0;
}
if (ath_hal_getcapability(sc->sc_ah, HAL_CAP_EXT_CHAN_DFS, 0, 0)
== HAL_OK) {
sc->sc_dfs->sc_dfs_ext_chan_ok = 1;
} else {
sc->sc_dfs->sc_dfs_ext_chan_ok = 0;
}
if (ath_hal_hasenhanceddfssupport(sc->sc_ah)) {
sc->sc_dfs->sc_dfs_use_enhancement = 1;
DFS_DPRINTK(sc, ATH_DEBUG_DFS, "%s: use DFS enhancements\n", __func__);
} else {
sc->sc_dfs->sc_dfs_use_enhancement = 0;
}
sc->sc_dfs->sc_dfs_cac_time = ATH_DFS_WAIT_MS;
sc->sc_dfs->sc_dfstesttime = ATH_DFS_TEST_RETURN_PERIOD_MS;
ATH_DFSQ_LOCK_INIT(dfs);
STAILQ_INIT(&dfs->dfs_radarq);
ATH_ARQ_LOCK_INIT(dfs);
STAILQ_INIT(&dfs->dfs_arq);
STAILQ_INIT(&(dfs->dfs_eventq));
ATH_DFSEVENTQ_LOCK_INIT(dfs);
dfs->events = (struct dfs_event *)OS_MALLOC(sc->sc_osdev,
sizeof(struct dfs_event)*DFS_MAX_EVENTS,
GFP_KERNEL);
if (dfs->events == NULL) {
OS_FREE(dfs);
sc->sc_dfs = NULL;
DFS_DPRINTK(sc, ATH_DEBUG_DFS,
"%s: events allocation failed\n", __func__);
return 1;
}
for (i=0; i<DFS_MAX_EVENTS; i++) {
STAILQ_INSERT_TAIL(&(dfs->dfs_eventq), &dfs->events[i], re_list);
}
dfs->pulses = (struct dfs_pulseline *)OS_MALLOC(sc->sc_osdev, sizeof(struct dfs_pulseline), GFP_KERNEL);
if (dfs->pulses == NULL) {
OS_FREE(dfs->events);
dfs->events = NULL;
OS_FREE(dfs);
sc->sc_dfs = NULL;
DFS_DPRINTK(sc, ATH_DEBUG_DFS,
"%s: pulse buffer allocation failed\n", __func__);
return 1;
}
dfs->pulses->pl_lastelem = DFS_MAX_PULSE_BUFFER_MASK;
#ifdef ATH_ENABLE_AR
if (ath_hal_getcapability(sc->sc_ah, HAL_CAP_PHYDIAG,
HAL_CAP_AR, NULL) == HAL_OK) {
dfs_reset_ar(sc);
dfs_reset_arq(sc);
dfs->dfs_proc_phyerr |= DFS_AR_EN;
}
#endif
if (ath_hal_getcapability(sc->sc_ah, HAL_CAP_PHYDIAG,
HAL_CAP_RADAR, NULL) == HAL_OK) {
u_int32_t val;
/*
* If we have fast diversity capability, read off
* Strong Signal fast diversity count set in the ini
* file, and store so we can restore the value when
* radar is disabled
*/
if (ath_hal_getcapability(sc->sc_ah, HAL_CAP_DIVERSITY, HAL_CAP_STRONG_DIV,
&val) == HAL_OK) {
dfs->dfs_rinfo.rn_fastdivGCval = val;
}
dfs->dfs_proc_phyerr |= DFS_RADAR_EN;
/* Allocate memory for radar filters */
for (n=0; n<DFS_MAX_RADAR_TYPES; n++) {
dfs->dfs_radarf[n] = (struct dfs_filtertype *)OS_MALLOC(sc->sc_osdev, sizeof(struct dfs_filtertype),GFP_KERNEL);
if (dfs->dfs_radarf[n] == NULL) {
DFS_DPRINTK(sc,ATH_DEBUG_DFS,
"%s: cannot allocate memory for radar filter types\n",
__func__);
goto bad1;
}
OS_MEMZERO(dfs->dfs_radarf[n], sizeof(struct dfs_filtertype));
}
/* Allocate memory for radar table */
dfs->dfs_radartable = (int8_t **)OS_MALLOC(sc->sc_osdev, 256*sizeof(int8_t *), GFP_KERNEL);
if (dfs->dfs_radartable == NULL) {
DFS_DPRINTK(sc, ATH_DEBUG_DFS, "%s: cannot allocate memory for radar table\n",
__func__);
goto bad1;
}
for (n=0; n<256; n++) {
dfs->dfs_radartable[n] = OS_MALLOC(sc->sc_osdev, DFS_MAX_RADAR_OVERLAP*sizeof(int8_t),
GFP_KERNEL);
if (dfs->dfs_radartable[n] == NULL) {
DFS_DPRINTK(sc, ATH_DEBUG_DFS,
"%s: cannot allocate memory for radar table entry\n",
__func__);
goto bad2;
}
}
if (usenol != 1) {
DFS_DPRINTK(sc, ATH_DEBUG_DFS, " %s: Disabling Channel NOL\n", __func__);
}
dfs->dfs_rinfo.rn_use_nol = usenol;
/* Init the cached extension channel busy for false alarm reduction */
dfs->dfs_rinfo.ext_chan_busy_ts = ath_hal_gettsf64(sc->sc_ah);
dfs->dfs_rinfo.dfs_ext_chan_busy = 0;
/* Init the Bin5 chirping related data */
dfs->dfs_rinfo.dfs_bin5_chirp_ts = dfs->dfs_rinfo.ext_chan_busy_ts;
dfs->dfs_rinfo.dfs_last_bin5_dur = MAX_BIN5_DUR;
dfs->dfs_b5radars = NULL;
if ( dfs_init_radar_filters( sc ) ) {
DFS_DPRINTK(sc, ATH_DEBUG_DFS,
" %s: Radar Filter Intialization Failed \n",
__func__);
return 1;
}
}
return 0;
bad2:
OS_FREE(dfs->dfs_radartable);
dfs->dfs_radartable = NULL;
bad1:
for (n=0; n<DFS_MAX_RADAR_TYPES; n++) {
if (dfs->dfs_radarf[n] != NULL) {
OS_FREE(dfs->dfs_radarf[n]);
dfs->dfs_radarf[n] = NULL;
}
}
if (dfs->pulses) {
OS_FREE(dfs->pulses);
dfs->pulses = NULL;
}
if (dfs->events) {
OS_FREE(dfs->events);
dfs->events = NULL;
}
if (sc->sc_dfs) {
OS_FREE(sc->sc_dfs);
sc->sc_dfs = NULL;
}
return 1;
#undef N
}
int
dfs_attach(struct ieee80211com *ic)
{
int i, n;
struct ath_dfs *dfs = (struct ath_dfs *)ic->ic_dfs;
struct ath_dfs_radar_tab_info radar_info;
#define N(a) (sizeof(a)/sizeof(a[0]))
if (dfs != NULL) {
DFS_DPRINTK(dfs, ATH_DEBUG_DFS1,
"%s: ic_dfs was not NULL\n",
__func__);
return 1;
}
if (ic->ic_dfs_state.ignore_dfs) {
DFS_DPRINTK(dfs, ATH_DEBUG_DFS1,
"%s: ignoring dfs\n",
__func__);
return 0;
}
dfs = (struct ath_dfs *)OS_MALLOC(ic->ic_osdev, sizeof(struct ath_dfs), GFP_ATOMIC);
if (dfs == NULL) {
DFS_DPRINTK(dfs, ATH_DEBUG_DFS1,
"%s: ath_dfs allocation failed\n", __func__);
return 1;
}
OS_MEMZERO(dfs, sizeof (struct ath_dfs));
ic->ic_dfs = (void *)dfs;
dfs->ic = ic;
ic->ic_dfs_debug = dfs_get_debug_info;
#ifndef ATH_DFS_RADAR_DETECTION_ONLY
dfs->dfs_nol = NULL;
#endif
/*
* Zero out radar_info. It's possible that the attach function won't
* fetch an initial regulatory configuration; you really do want to
* ensure that the contents indicates there aren't any filters.
*/
OS_MEMZERO(&radar_info, sizeof(radar_info));
ic->ic_dfs_attach(ic, &dfs->dfs_caps, &radar_info);
dfs_clear_stats(ic);
dfs->dfs_event_log_on = 0;
OS_INIT_TIMER(ic->ic_osdev, &(dfs->ath_dfs_task_timer), dfs_task, (void *) (ic));
#ifndef ATH_DFS_RADAR_DETECTION_ONLY
OS_INIT_TIMER(ic->ic_osdev, &(dfs->ath_dfstesttimer), dfs_testtimer_task,
(void *) ic);
dfs->ath_dfs_cac_time = ATH_DFS_WAIT_MS;
dfs->ath_dfstesttime = ATH_DFS_TEST_RETURN_PERIOD_MS;
#endif
ATH_DFSQ_LOCK_INIT(dfs);
STAILQ_INIT(&dfs->dfs_radarq);
ATH_ARQ_LOCK_INIT(dfs);
STAILQ_INIT(&dfs->dfs_arq);
STAILQ_INIT(&(dfs->dfs_eventq));
ATH_DFSEVENTQ_LOCK_INIT(dfs);
dfs->events = (struct dfs_event *)OS_MALLOC(ic->ic_osdev,
sizeof(struct dfs_event)*DFS_MAX_EVENTS,
GFP_ATOMIC);
if (dfs->events == NULL) {
OS_FREE(dfs);
ic->ic_dfs = NULL;
DFS_PRINTK("%s: events allocation failed\n", __func__);
return 1;
}
for (i = 0; i < DFS_MAX_EVENTS; i++) {
STAILQ_INSERT_TAIL(&(dfs->dfs_eventq), &dfs->events[i], re_list);
}
dfs->pulses = (struct dfs_pulseline *)OS_MALLOC(ic->ic_osdev, sizeof(struct dfs_pulseline), GFP_ATOMIC);
if (dfs->pulses == NULL) {
OS_FREE(dfs->events);
dfs->events = NULL;
OS_FREE(dfs);
ic->ic_dfs = NULL;
DFS_PRINTK("%s: pulse buffer allocation failed\n", __func__);
return 1;
}
dfs->pulses->pl_lastelem = DFS_MAX_PULSE_BUFFER_MASK;
/* Allocate memory for radar filters */
for (n=0; n<DFS_MAX_RADAR_TYPES; n++) {
dfs->dfs_radarf[n] = (struct dfs_filtertype *)OS_MALLOC(ic->ic_osdev, sizeof(struct dfs_filtertype),GFP_ATOMIC);
if (dfs->dfs_radarf[n] == NULL) {
DFS_PRINTK("%s: cannot allocate memory for radar filter types\n",
__func__);
goto bad1;
}
OS_MEMZERO(dfs->dfs_radarf[n], sizeof(struct dfs_filtertype));
}
/* Allocate memory for radar table */
dfs->dfs_radartable = (int8_t **)OS_MALLOC(ic->ic_osdev, 256*sizeof(int8_t *), GFP_ATOMIC);
if (dfs->dfs_radartable == NULL) {
DFS_PRINTK("%s: cannot allocate memory for radar table\n",
__func__);
goto bad1;
}
for (n=0; n<256; n++) {
dfs->dfs_radartable[n] = OS_MALLOC(ic->ic_osdev, DFS_MAX_RADAR_OVERLAP*sizeof(int8_t),
GFP_ATOMIC);
if (dfs->dfs_radartable[n] == NULL) {
DFS_PRINTK("%s: cannot allocate memory for radar table entry\n",
__func__);
goto bad2;
}
}
if (usenol == 0)
DFS_PRINTK("%s: NOL disabled\n", __func__);
else if (usenol == 2)
DFS_PRINTK("%s: NOL disabled; no CSA\n", __func__);
dfs->dfs_rinfo.rn_use_nol = usenol;
/* Init the cached extension channel busy for false alarm reduction */
dfs->dfs_rinfo.ext_chan_busy_ts = ic->ic_get_TSF64(ic);
dfs->dfs_rinfo.dfs_ext_chan_busy = 0;
/* Init the Bin5 chirping related data */
dfs->dfs_rinfo.dfs_bin5_chirp_ts = dfs->dfs_rinfo.ext_chan_busy_ts;
dfs->dfs_rinfo.dfs_last_bin5_dur = MAX_BIN5_DUR;
dfs->dfs_b5radars = NULL;
/*
* If dfs_init_radar_filters() fails, we can abort here and
* reconfigure when the first valid channel + radar config
* is available.
*/
if ( dfs_init_radar_filters( ic, &radar_info) ) {
DFS_PRINTK(" %s: Radar Filter Intialization Failed \n",
__func__);
return 1;
}
dfs->ath_dfs_false_rssi_thres = RSSI_POSSIBLY_FALSE;
dfs->ath_dfs_peak_mag = SEARCH_FFT_REPORT_PEAK_MAG_THRSH;
dfs->dfs_phyerr_freq_min = 0x7fffffff;
dfs->dfs_phyerr_freq_max = 0;
dfs->dfs_phyerr_queued_count = 0;
dfs->dfs_phyerr_w53_counter = 0;
dfs->dfs_pri_multiplier = 2;
dfs->ath_dfs_nol_timeout = DFS_NOL_TIMEOUT_S;
return 0;
bad2:
OS_FREE(dfs->dfs_radartable);
dfs->dfs_radartable = NULL;
bad1:
for (n=0; n<DFS_MAX_RADAR_TYPES; n++) {
if (dfs->dfs_radarf[n] != NULL) {
OS_FREE(dfs->dfs_radarf[n]);
dfs->dfs_radarf[n] = NULL;
}
}
if (dfs->pulses) {
OS_FREE(dfs->pulses);
dfs->pulses = NULL;
}
if (dfs->events) {
OS_FREE(dfs->events);
dfs->events = NULL;
}
if (ic->ic_dfs) {
OS_FREE(ic->ic_dfs);
ic->ic_dfs = NULL;
}
return 1;
#undef N
}
/*
* This is called each time a channel change occurs, to (potentially) enable
* the radar code.
*/
int dfs_radar_enable(struct ieee80211com *ic,
struct ath_dfs_radar_tab_info *radar_info)
{
int is_ext_ch;
int is_fastclk = 0;
int radar_filters_init_status = 0;
//u_int32_t rfilt;
struct ath_dfs *dfs;
struct dfs_state *rs_pri, *rs_ext;
struct ieee80211_channel *chan=ic->ic_curchan, *ext_ch = NULL;
is_ext_ch=IEEE80211_IS_CHAN_11N_HT40(ic->ic_curchan);
dfs=(struct ath_dfs *)ic->ic_dfs;
rs_pri = NULL;
rs_ext = NULL;
#if 0
int i;
#endif
if (dfs == NULL) {
DFS_DPRINTK(dfs, ATH_DEBUG_DFS, "%s: ic_dfs is NULL\n",
__func__);
return -EIO;
}
ic->ic_dfs_disable(ic);
/*
* Setting country code might change the DFS domain
* so initialize the DFS Radar filters
*/
radar_filters_init_status = dfs_init_radar_filters(ic, radar_info);
/*
* dfs_init_radar_filters() returns 1 on failure and
* 0 on success.
*/
if ( DFS_STATUS_FAIL == radar_filters_init_status ) {
VOS_TRACE(VOS_MODULE_ID_SAP, VOS_TRACE_LEVEL_ERROR,
"%s[%d]: DFS Radar Filters Initialization Failed",
__func__, __LINE__);
return -EIO;
}
if ((ic->ic_opmode == IEEE80211_M_HOSTAP || ic->ic_opmode == IEEE80211_M_IBSS)) {
if (IEEE80211_IS_CHAN_DFS(chan)) {
u_int8_t index_pri, index_ext;
#ifdef ATH_ENABLE_AR
dfs->dfs_proc_phyerr |= DFS_AR_EN;
#endif
dfs->dfs_proc_phyerr |= DFS_RADAR_EN;
if (is_ext_ch) {
ext_ch = ieee80211_get_extchan(ic);
}
dfs_reset_alldelaylines(dfs);
rs_pri = dfs_getchanstate(dfs, &index_pri, 0);
if (ext_ch) {
rs_ext = dfs_getchanstate(dfs, &index_ext, 1);
}
if (rs_pri != NULL && ((ext_ch==NULL)||(rs_ext != NULL))) {
struct ath_dfs_phyerr_param pe;
OS_MEMSET(&pe, '\0', sizeof(pe));
if (index_pri != dfs->dfs_curchan_radindex)
dfs_reset_alldelaylines(dfs);
dfs->dfs_curchan_radindex = (int16_t) index_pri;
dfs->dfs_pri_multiplier_ini = radar_info->dfs_pri_multiplier;
if (rs_ext)
dfs->dfs_extchan_radindex = (int16_t) index_ext;
ath_dfs_phyerr_param_copy(&pe,
&rs_pri->rs_param);
DFS_DPRINTK(dfs, ATH_DEBUG_DFS3,
"%s: firpwr=%d, rssi=%d, height=%d, "
"prssi=%d, inband=%d, relpwr=%d, "
"relstep=%d, maxlen=%d\n",
__func__,
pe.pe_firpwr,
pe.pe_rrssi,
pe.pe_height,
pe.pe_prssi,
pe.pe_inband,
pe.pe_relpwr,
pe.pe_relstep,
pe.pe_maxlen
);
ic->ic_dfs_enable(ic, &is_fastclk, &pe);
DFS_DPRINTK(dfs, ATH_DEBUG_DFS, "Enabled radar detection on channel %d\n",
chan->ic_freq);
dfs->dur_multiplier =
is_fastclk ? DFS_FAST_CLOCK_MULTIPLIER : DFS_NO_FAST_CLOCK_MULTIPLIER;
DFS_DPRINTK(dfs, ATH_DEBUG_DFS3,
"%s: duration multiplier is %d\n", __func__, dfs->dur_multiplier);
} else
DFS_DPRINTK(dfs, ATH_DEBUG_DFS, "%s: No more radar states left\n",
__func__);
}
}
return DFS_STATUS_SUCCESS;
}
