void ath_ar_enable(struct ath_softc *sc)
{
struct ath_dfs *dfs=sc->sc_dfs;
struct dfs_ar_state *ar;
HAL_CHANNEL *chan= &sc->sc_curchan;
HAL_PHYERR_PARAM pe;
u_int32_t rfilt=0;
if (dfs == NULL) {
DFS_DPRINTK(sc, ATH_DEBUG_DFS, "%s: sc_dfs is NULL\n",
__func__);
return;
}
ar = (struct dfs_ar_state *) &dfs->dfs_ar_state;
if (dfs->dfs_proc_phyerr & (DFS_RADAR_EN | DFS_AR_EN)) {
if ((chan->channel_flags & CHANNEL_108G) == CHANNEL_108G) {
/* We are in turbo G, so enable AR */
DFS_DPRINTK(sc, ATH_DEBUG_DFS, "%s: Enabling AR\n", __func__);
dfs_reset_ar(sc);
ar->ar_radarrssi = DFS_AR_RADAR_RSSI_THR;
rfilt = ath_hal_getrxfilter(sc->sc_ah);
pe.pe_firpwr = HAL_PHYERR_PARAM_NOVAL;
pe.pe_height = HAL_PHYERR_PARAM_NOVAL;
pe.pe_prssi = HAL_PHYERR_PARAM_NOVAL;
pe.pe_inband = HAL_PHYERR_PARAM_NOVAL;
pe.pe_relpwr = HAL_PHYERR_PARAM_NOVAL;
pe.pe_maxlen = HAL_PHYERR_PARAM_NOVAL;
pe.pe_relstep = HAL_PHYERR_PARAM_NOVAL;
pe.pe_usefir128 = 0;
pe.pe_blockradar = 0;
pe.pe_enmaxrssi = 0;
pe.pe_rrssi = ar->ar_radarrssi;
ath_hal_enabledfs(sc->sc_ah, &pe);
/* Enable strong signal fast antenna diversity since accurate
* 1-2us radar
* detection is not important for AR anyways.
*/
ath_hal_setcapability(sc->sc_ah, HAL_CAP_DIVERSITY,
HAL_CAP_STRONG_DIV, dfs->dfs_rinfo.rn_fastdivGCval, NULL);
rfilt |= HAL_RX_FILTER_PHYRADAR;
ath_hal_setrxfilter(sc->sc_ah, rfilt);
}
} else {
DFS_DPRINTK(sc, ATH_DEBUG_DFS, "%s: Disabling AR\n", __func__);
rfilt = ath_hal_getrxfilter(sc->sc_ah);
rfilt &= ~HAL_RX_FILTER_PHYRADAR;
ath_hal_setrxfilter(sc->sc_ah,rfilt);
/* Enable strong signal fast antenna diversity */
ath_hal_setcapability(sc->sc_ah, HAL_CAP_DIVERSITY,
HAL_CAP_STRONG_DIV, dfs->dfs_rinfo.rn_fastdivGCval, NULL);
}
}
/*
* Explicity disable radar reporting.
*
* Return 0 if it was disabled, < 0 on error.
*/
int
ath_dfs_radar_disable(struct ath_softc *sc)
{
#if 0
HAL_PHYERR_PARAM pe;
(void) ath_hal_getdfsthresh(sc->sc_ah, &pe);
pe.pe_enabled = 0;
(void) ath_hal_enabledfs(sc->sc_ah, &pe);
return (0);
#else
return (0);
#endif
}
/*
* Enable radar check. Return 1 if the driver should
* enable radar PHY errors, or 0 if not.
*/
int
ath_dfs_radar_enable(struct ath_softc *sc, struct ieee80211_channel *chan)
{
#if 0
HAL_PHYERR_PARAM pe;
/* Check if the hardware supports radar reporting */
/* XXX TODO: migrate HAL_CAP_RADAR/HAL_CAP_AR to somewhere public! */
if (ath_hal_getcapability(sc->sc_ah,
HAL_CAP_PHYDIAG, 0, NULL) != HAL_OK)
return (0);
/* Check if the current channel is radar-enabled */
if (! IEEE80211_IS_CHAN_DFS(chan))
return (0);
/* Fetch the default parameters */
memset(&pe, '\0', sizeof(pe));
if (! ath_hal_getdfsdefaultthresh(sc->sc_ah, &pe))
return (0);
/* Enable radar PHY error reporting */
sc->sc_dodfs = 1;
/* Tell the hardware to enable radar reporting */
pe.pe_enabled = 1;
/* Flip on extension channel events only if doing HT40 */
if (IEEE80211_IS_CHAN_HT40(chan))
pe.pe_extchannel = 1;
else
pe.pe_extchannel = 0;
ath_hal_enabledfs(sc->sc_ah, &pe);
/*
* Disable strong signal fast diversity - needed for
* AR5212 and similar PHYs for reliable short pulse
* duration.
*/
(void) ath_hal_setcapability(sc->sc_ah, HAL_CAP_DIVERSITY, 2, 0, NULL);
return (1);
#else
return (0);
#endif
}
/*
* Handle ioctl requests from the diagnostic interface.
*
* The initial part of this code resembles ath_ioctl_diag();
* it's likely a good idea to reduce duplication between
* these two routines.
*/
int
ath_ioctl_phyerr(struct ath_softc *sc, struct ath_diag *ad)
{
unsigned int id = ad->ad_id & ATH_DIAG_ID;
void *indata = NULL;
void *outdata = NULL;
u_int32_t insize = ad->ad_in_size;
u_int32_t outsize = ad->ad_out_size;
int error = 0;
HAL_PHYERR_PARAM peout;
HAL_PHYERR_PARAM *pe;
if (ad->ad_id & ATH_DIAG_IN) {
/*
* Copy in data.
*/
indata = malloc(insize, M_TEMP, M_NOWAIT);
if (indata == NULL) {
error = ENOMEM;
goto bad;
}
error = copyin(ad->ad_in_data, indata, insize);
if (error)
goto bad;
}
if (ad->ad_id & ATH_DIAG_DYN) {
/*
* Allocate a buffer for the results (otherwise the HAL
* returns a pointer to a buffer where we can read the
* results). Note that we depend on the HAL leaving this
* pointer for us to use below in reclaiming the buffer;
* may want to be more defensive.
*/
outdata = malloc(outsize, M_TEMP, M_NOWAIT);
if (outdata == NULL) {
error = ENOMEM;
goto bad;
}
}
switch (id) {
case DFS_SET_THRESH:
if (insize < sizeof(HAL_PHYERR_PARAM)) {
error = EINVAL;
break;
}
pe = (HAL_PHYERR_PARAM *) indata;
ath_hal_enabledfs(sc->sc_ah, pe);
break;
case DFS_GET_THRESH:
memset(&peout, 0, sizeof(peout));
outsize = sizeof(HAL_PHYERR_PARAM);
ath_hal_getdfsthresh(sc->sc_ah, &peout);
pe = (HAL_PHYERR_PARAM *) outdata;
memcpy(pe, &peout, sizeof(*pe));
break;
default:
error = EINVAL;
}
if (outsize < ad->ad_out_size)
ad->ad_out_size = outsize;
if (outdata && copyout(outdata, ad->ad_out_data, ad->ad_out_size))
error = EFAULT;
bad:
if ((ad->ad_id & ATH_DIAG_IN) && indata != NULL)
free(indata, M_TEMP);
if ((ad->ad_id & ATH_DIAG_DYN) && outdata != NULL)
free(outdata, M_TEMP);
return (error);
}
int
dfs_set_thresholds(struct ath_softc *sc, const u_int32_t threshtype,
const u_int32_t value)
{
struct ath_dfs *dfs=sc->sc_dfs;
int16_t chanindex;
struct dfs_state *rs;
HAL_PHYERR_PARAM pe;
if (dfs == NULL) {
DFS_DPRINTK(sc, ATH_DEBUG_DFS, "%s: sc_dfs is NULL\n",
__func__);
return 0;
}
chanindex = dfs->dfs_curchan_radindex;
if ((chanindex <0) || (chanindex >= DFS_NUM_RADAR_STATES))
return 0;
pe.pe_firpwr = HAL_PHYERR_PARAM_NOVAL;
pe.pe_height = HAL_PHYERR_PARAM_NOVAL;
pe.pe_prssi = HAL_PHYERR_PARAM_NOVAL;
pe.pe_inband = HAL_PHYERR_PARAM_NOVAL;
pe.pe_rrssi = HAL_PHYERR_PARAM_NOVAL;
/* 5413 specific */
pe.pe_relpwr = HAL_PHYERR_PARAM_NOVAL;
pe.pe_relstep = HAL_PHYERR_PARAM_NOVAL;
pe.pe_maxlen = HAL_PHYERR_PARAM_NOVAL;
rs = &(dfs->dfs_radar[chanindex]);
switch (threshtype) {
case DFS_PARAM_FIRPWR:
rs->rs_firpwr = (int32_t) value;
pe.pe_firpwr = rs->rs_firpwr;
break;
case DFS_PARAM_RRSSI:
rs->rs_radarrssi = value;
pe.pe_rrssi = value;
break;
case DFS_PARAM_HEIGHT:
rs->rs_height = value;
pe.pe_height = value;
break;
case DFS_PARAM_PRSSI:
rs->rs_pulserssi = value;
pe.pe_prssi = value;
break;
case DFS_PARAM_INBAND:
rs->rs_inband = value;
pe.pe_inband = value;
break;
/* 5413 specific */
case DFS_PARAM_RELPWR:
rs->rs_relpwr = value;
pe.pe_relpwr = value;
break;
case DFS_PARAM_RELSTEP:
rs->rs_relstep = value;
pe.pe_relstep = value;
break;
case DFS_PARAM_MAXLEN:
rs->rs_maxlen = value;
pe.pe_maxlen = value;
break;
}
ath_hal_enabledfs(sc->sc_ah, &pe);
return 1;
}
int dfs_radar_enable(struct ath_softc *sc)
{
struct ath_dfs *dfs=sc->sc_dfs;
u_int32_t rfilt;
HAL_CHANNEL *chan=&sc->sc_curchan;
struct ath_hal *ah = sc->sc_ah;
HAL_CHANNEL *ext_ch=ath_hal_get_extension_channel(ah);
if (dfs == NULL) {
DFS_DPRINTK(sc, ATH_DEBUG_DFS, "%s: sc_dfs is NULL\n",
__func__);
return -EIO;
}
rfilt = ath_hal_getrxfilter(ah);
if ((dfs->dfs_proc_phyerr & (DFS_RADAR_EN | DFS_AR_EN)) &&
(sc->sc_opmode == HAL_M_HOSTAP || sc->sc_opmode == HAL_M_IBSS)) {
if (chan->privFlags & CHANNEL_DFS) {
struct dfs_state *rs_pri=NULL, *rs_ext=NULL;
u_int8_t index_pri, index_ext;
HAL_PHYERR_PARAM pe;
dfs->sc_dfs_cac_time = ATH_DFS_WAIT_MS;
if (dfs->dfsdomain == DFS_ETSI_DOMAIN) {
if(IS_CHANNEL_WEATHER_RADAR(chan->channel)) {
dfs->sc_dfs_cac_time = ATH_DFS_WEATHER_CHANNEL_WAIT_MS;
} else {
if (ext_ch && IS_CHANNEL_WEATHER_RADAR(ext_ch->channel)) {
dfs->sc_dfs_cac_time = ATH_DFS_WEATHER_CHANNEL_WAIT_MS;
}
}
}
if(dfs->sc_dfs_cac_time != ATH_DFS_WAIT_MS)
printk("WARNING!!! 10 minute CAC period as channel is a weather radar channel\n");
/*
Disable radar detection in case we need to setup
* a new channel state and radars are somehow being
* reported. Avoids locking problem.
*/
rfilt = ath_hal_getrxfilter(ah);
rfilt &= ~HAL_RX_FILTER_PHYRADAR;
ath_hal_setrxfilter(ah, rfilt);
/* Enable strong signal fast antenna diversity */
ath_hal_setcapability(ah, HAL_CAP_DIVERSITY,
HAL_CAP_STRONG_DIV, dfs->dfs_rinfo.rn_fastdivGCval, NULL);
dfs_reset_alldelaylines(sc);
rs_pri = dfs_getchanstate(sc, &index_pri, 0);
if (ext_ch) {
rs_ext = dfs_getchanstate(sc, &index_ext, 1);
sc->sc_extchan = *ext_ch;
}
if (rs_pri != NULL && ((ext_ch==NULL)||(rs_ext != NULL))) {
if (index_pri != dfs->dfs_curchan_radindex)
dfs_reset_alldelaylines(sc);
dfs->dfs_curchan_radindex = (int16_t) index_pri;
if (rs_ext)
dfs->dfs_extchan_radindex = (int16_t) index_ext;
pe.pe_firpwr = rs_pri->rs_firpwr;
pe.pe_rrssi = rs_pri->rs_radarrssi;
pe.pe_height = rs_pri->rs_height;
pe.pe_prssi = rs_pri->rs_pulserssi;
pe.pe_inband = rs_pri->rs_inband;
/* 5413 specific */
pe.pe_relpwr = rs_pri->rs_relpwr;
pe.pe_relstep = rs_pri->rs_relstep;
pe.pe_maxlen = rs_pri->rs_maxlen;
/* Disable strong signal fast antenna diversity */
ath_hal_setcapability(ah, HAL_CAP_DIVERSITY,
HAL_CAP_STRONG_DIV, 1, NULL);
ath_hal_enabledfs(sc->sc_ah, &pe);
rfilt |= HAL_RX_FILTER_PHYRADAR;
ath_hal_setrxfilter(ah, rfilt);
DFS_DPRINTK(sc, ATH_DEBUG_DFS, "Enabled radar detection on channel %d\n",
chan->channel);
dfs->dur_multiplier = (ath_hal_is_fast_clock_enabled(sc->sc_ah) ? (DFS_FAST_CLOCK_MULTIPLIER) : (DFS_NO_FAST_CLOCK_MULTIPLIER));
DFS_DPRINTK(sc, ATH_DEBUG_DFS3,
"%s: duration multiplier is %d\n", __func__, dfs->dur_multiplier);
/*
* Fast antenna diversity for strong signals disturbs
* radar detection of 1-2us pusles. Enable fast diveristy
* but disable the strong signal aspect of it
*/
if (ath_hal_getcapability(ah, HAL_CAP_DIVERSITY, 1, NULL) == HAL_OK) {
ath_hal_setcapability(ah, HAL_CAP_DIVERSITY,
HAL_CAP_STRONG_DIV, 0, NULL);
}
} else
DFS_DPRINTK(sc, ATH_DEBUG_DFS, "%s: No more radar states left\n",
__func__);
} else {
if (!(chan->channelFlags & CHANNEL_2GHZ)) {
/* Enable strong signal fast antenna diversity */
ath_hal_setcapability(ah, HAL_CAP_DIVERSITY,
HAL_CAP_STRONG_DIV, dfs->dfs_rinfo.rn_fastdivGCval, NULL);
/* Disable Radar if not 2GHZ channel and not DFS */
rfilt &= ~HAL_RX_FILTER_PHYRADAR;
ath_hal_setrxfilter(ah, rfilt);
}
}
} else {
/* Enable strong signal fast antenna diversity */
ath_hal_setcapability(ah, HAL_CAP_DIVERSITY,
HAL_CAP_STRONG_DIV, dfs->dfs_rinfo.rn_fastdivGCval, NULL);
/* Disable Radar if RADAR or AR not enabled */
rfilt &= ~HAL_RX_FILTER_PHYRADAR;
ath_hal_setrxfilter(ah, rfilt);
}
return 0;
}