void ath_ar_disable(struct ath_softc *sc)
{
u_int32_t rfilt;
HAL_CHANNEL *chan=&sc->sc_curchan;
struct ath_dfs *dfs=sc->sc_dfs;
if (dfs == NULL) {
DFS_DPRINTK(sc, ATH_DEBUG_DFS, "%s: sc_dfs is NULL\n",
__func__);
return;
}
if ((chan->channel_flags & CHANNEL_108G) == CHANNEL_108G) {
/* 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);
rfilt = ath_hal_getrxfilter(sc->sc_ah);
rfilt &= ~HAL_RX_FILTER_PHYERR;
ath_hal_setrxfilter(sc->sc_ah, rfilt);
dfs_reset_ar(sc);
dfs_reset_arq(sc);
}
}
void
dfs_detach(struct ieee80211com *ic)
{
struct ath_dfs *dfs = (struct ath_dfs *)ic->ic_dfs;
int n, empty;
if (dfs == NULL) {
DFS_DPRINTK(dfs, ATH_DEBUG_DFS1, "%s: ic_dfs is NULL\n", __func__);
return;
}
/* Bug 29099 make sure all outstanding timers are cancelled*/
if (dfs->ath_radar_tasksched) {
OS_CANCEL_TIMER(&dfs->ath_dfs_task_timer);
dfs->ath_radar_tasksched = 0;
}
if (dfs->ath_dfstest) {
OS_CANCEL_TIMER(&dfs->ath_dfstesttimer);
dfs->ath_dfstest = 0;
}
#if 0
#ifndef ATH_DFS_RADAR_DETECTION_ONLY
if (dfs->ic_dfswait) {
OS_CANCEL_TIMER(&dfs->ic_dfswaittimer);
dfs->ath_dfswait = 0;
}
OS_CANCEL_TIMER(&dfs->sc_dfs_war_timer);
if (dfs->dfs_nol != NULL) {
struct dfs_nolelem *nol, *next;
nol = dfs->dfs_nol;
/* Bug 29099 - each NOL element has its own timer, cancel it and
free the element*/
while (nol != NULL) {
OS_CANCEL_TIMER(&nol->nol_timer);
next = nol->nol_next;
OS_FREE(nol);
nol = next;
}
dfs->dfs_nol = NULL;
}
#endif
#endif
/* Return radar events to free q*/
dfs_reset_radarq(dfs);
dfs_reset_alldelaylines(dfs);
/* Free up pulse log*/
if (dfs->pulses != NULL) {
OS_FREE(dfs->pulses);
dfs->pulses = NULL;
}
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->dfs_radartable != NULL) {
for (n=0; n<256; n++) {
if (dfs->dfs_radartable[n] != NULL) {
OS_FREE(dfs->dfs_radartable[n]);
dfs->dfs_radartable[n] = NULL;
}
}
OS_FREE(dfs->dfs_radartable);
dfs->dfs_radartable = NULL;
#ifndef ATH_DFS_RADAR_DETECTION_ONLY
dfs->ath_dfs_isdfsregdomain = 0;
#endif
}
if (dfs->dfs_b5radars != NULL) {
OS_FREE(dfs->dfs_b5radars);
dfs->dfs_b5radars=NULL;
}
dfs_reset_ar(dfs);
ATH_ARQ_LOCK(dfs);
empty = STAILQ_EMPTY(&(dfs->dfs_arq));
ATH_ARQ_UNLOCK(dfs);
if (!empty) {
dfs_reset_arq(dfs);
}
if (dfs->events != NULL) {
OS_FREE(dfs->events);
dfs->events = NULL;
}
dfs_nol_timer_cleanup(dfs);
OS_FREE(dfs);
/* XXX? */
ic->ic_dfs = NULL;
}
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
}