recv.o \
xmit.o \
link.o \
- antenna.o
+ antenna.o \
+ channel.o
ath9k-$(CONFIG_ATH9K_BTCOEX_SUPPORT) += mci.o
ath9k-$(CONFIG_ATH9K_PCI) += pci.o
u32 ampdu_ref;
};
+struct ath_chanctx {
+ struct cfg80211_chan_def chandef;
+ struct list_head vifs;
+ bool offchannel;
+};
+
+void ath_chanctx_init(struct ath_softc *sc);
+int ath_chanctx_set_channel(struct ath_softc *sc, struct ath_chanctx *ctx,
+ struct cfg80211_chan_def *chandef);
+int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan);
int ath_startrecv(struct ath_softc *sc);
bool ath_stoprecv(struct ath_softc *sc);
u32 ath_calcrxfilter(struct ath_softc *sc);
/********/
struct ath_vif {
+ struct list_head list;
+
struct ieee80211_vif *vif;
struct ath_node mcast_node;
int av_bslot;
bool primary_sta_vif;
__le64 tsf_adjust; /* TSF adjustment for staggered beacons */
struct ath_buf *av_bcbuf;
+ struct ath_chanctx *chanctx;
/* P2P Client */
struct ieee80211_noa_data noa;
#define PS_BEACON_SYNC BIT(4)
#define PS_WAIT_FOR_ANI BIT(5)
+#define ATH9K_NUM_CHANCTX 2 /* supports 2 operating channels */
+
struct ath_softc {
struct ieee80211_hw *hw;
struct device *dev;
struct ath_tx tx;
struct ath_beacon beacon;
+ struct ath_chanctx chanctx[ATH9K_NUM_CHANCTX];
+ struct ath_chanctx *cur_chan;
+
#ifdef CONFIG_MAC80211_LEDS
bool led_registered;
char led_name[32];
--- /dev/null
+/*
+ * Copyright (c) 2014 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.
+ */
+
+#include "ath9k.h"
+
+/* Set/change channels. If the channel is really being changed, it's done
+ * by reseting the chip. To accomplish this we must first cleanup any pending
+ * DMA, then restart stuff.
+ */
+static int ath_set_channel(struct ath_softc *sc)
+{
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
+ struct ieee80211_hw *hw = sc->hw;
+ struct ath9k_channel *hchan;
+ struct cfg80211_chan_def *chandef = &sc->cur_chan->chandef;
+ struct ieee80211_channel *chan = chandef->chan;
+ int pos = chan->hw_value;
+ int old_pos = -1;
+ int r;
+
+ if (test_bit(ATH_OP_INVALID, &common->op_flags))
+ return -EIO;
+
+ if (ah->curchan)
+ old_pos = ah->curchan - &ah->channels[0];
+
+ ath_dbg(common, CONFIG, "Set channel: %d MHz width: %d\n",
+ chan->center_freq, chandef->width);
+
+ /* update survey stats for the old channel before switching */
+ spin_lock_bh(&common->cc_lock);
+ ath_update_survey_stats(sc);
+ spin_unlock_bh(&common->cc_lock);
+
+ ath9k_cmn_get_channel(hw, ah, chandef);
+
+ /* If the operating channel changes, change the survey in-use flags
+ * along with it.
+ * Reset the survey data for the new channel, unless we're switching
+ * back to the operating channel from an off-channel operation.
+ */
+ if (!sc->cur_chan->offchannel && sc->cur_survey != &sc->survey[pos]) {
+ if (sc->cur_survey)
+ sc->cur_survey->filled &= ~SURVEY_INFO_IN_USE;
+
+ sc->cur_survey = &sc->survey[pos];
+
+ memset(sc->cur_survey, 0, sizeof(struct survey_info));
+ sc->cur_survey->filled |= SURVEY_INFO_IN_USE;
+ } else if (!(sc->survey[pos].filled & SURVEY_INFO_IN_USE)) {
+ memset(&sc->survey[pos], 0, sizeof(struct survey_info));
+ }
+
+ hchan = &sc->sc_ah->channels[pos];
+ r = ath_reset_internal(sc, hchan);
+ if (r)
+ return r;
+
+ /* The most recent snapshot of channel->noisefloor for the old
+ * channel is only available after the hardware reset. Copy it to
+ * the survey stats now.
+ */
+ if (old_pos >= 0)
+ ath_update_survey_nf(sc, old_pos);
+
+ /* Enable radar pulse detection if on a DFS channel. Spectral
+ * scanning and radar detection can not be used concurrently.
+ */
+ if (hw->conf.radar_enabled) {
+ u32 rxfilter;
+
+ /* set HW specific DFS configuration */
+ ath9k_hw_set_radar_params(ah);
+ rxfilter = ath9k_hw_getrxfilter(ah);
+ rxfilter |= ATH9K_RX_FILTER_PHYRADAR |
+ ATH9K_RX_FILTER_PHYERR;
+ ath9k_hw_setrxfilter(ah, rxfilter);
+ ath_dbg(common, DFS, "DFS enabled at freq %d\n",
+ chan->center_freq);
+ } else {
+ /* perform spectral scan if requested. */
+ if (test_bit(ATH_OP_SCANNING, &common->op_flags) &&
+ sc->spectral_mode == SPECTRAL_CHANSCAN)
+ ath9k_spectral_scan_trigger(hw);
+ }
+
+ return 0;
+}
+
+void ath_chanctx_init(struct ath_softc *sc)
+{
+ struct ath_chanctx *ctx;
+ struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+ struct ieee80211_supported_band *sband;
+ struct ieee80211_channel *chan;
+ int i;
+
+ sband = &common->sbands[IEEE80211_BAND_2GHZ];
+ if (!sband->n_channels)
+ sband = &common->sbands[IEEE80211_BAND_5GHZ];
+
+ chan = &sband->channels[0];
+ for (i = 0; i < ATH9K_NUM_CHANCTX; i++) {
+ ctx = &sc->chanctx[i];
+ cfg80211_chandef_create(&ctx->chandef, chan, NL80211_CHAN_HT20);
+ INIT_LIST_HEAD(&ctx->vifs);
+ }
+ sc->cur_chan = &sc->chanctx[0];
+}
+
+int ath_chanctx_set_channel(struct ath_softc *sc, struct ath_chanctx *ctx,
+ struct cfg80211_chan_def *chandef)
+{
+ memcpy(&ctx->chandef, chandef, sizeof(ctx->chandef));
+ if (ctx != sc->cur_chan)
+ return 0;
+
+ return ath_set_channel(sc);
+}
ath9k_cmn_init_crypto(sc->sc_ah);
ath9k_init_misc(sc);
ath_fill_led_pin(sc);
+ ath_chanctx_init(sc);
if (common->bus_ops->aspm_init)
common->bus_ops->aspm_init(common);
if (common->disable_ani ||
!test_bit(ATH_OP_ANI_RUN, &common->op_flags) ||
- (sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL))
+ sc->cur_chan->offchannel)
return;
common->ani.longcal_timer = timestamp;
ath9k_hw_set_interrupts(ah);
ath9k_hw_enable_interrupts(ah);
- if (!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) && start) {
+ if (!sc->cur_chan->offchannel && start) {
if (!test_bit(ATH_OP_BEACONS, &common->op_flags))
goto work;
return true;
}
-static int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan)
+int ath_reset_internal(struct ath_softc *sc, struct ath9k_channel *hchan)
{
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
tasklet_disable(&sc->intr_tq);
spin_lock_bh(&sc->sc_pcu_lock);
- if (!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) {
+ if (!sc->cur_chan->offchannel) {
fastcc = false;
caldata = &sc->caldata;
}
}
if (ath9k_hw_mci_is_enabled(sc->sc_ah) &&
- (sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL))
+ sc->cur_chan->offchannel)
ath9k_mci_set_txpower(sc, true, false);
if (!ath_complete_reset(sc, true))
return r;
}
-
-/*
- * Set/change channels. If the channel is really being changed, it's done
- * by reseting the chip. To accomplish this we must first cleanup any pending
- * DMA, then restart stuff.
-*/
-static int ath_set_channel(struct ath_softc *sc, struct cfg80211_chan_def *chandef)
-{
- struct ath_hw *ah = sc->sc_ah;
- struct ath_common *common = ath9k_hw_common(ah);
- struct ieee80211_hw *hw = sc->hw;
- struct ath9k_channel *hchan;
- struct ieee80211_channel *chan = chandef->chan;
- bool offchannel;
- int pos = chan->hw_value;
- int old_pos = -1;
- int r;
-
- if (test_bit(ATH_OP_INVALID, &common->op_flags))
- return -EIO;
-
- offchannel = !!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL);
-
- if (ah->curchan)
- old_pos = ah->curchan - &ah->channels[0];
-
- ath_dbg(common, CONFIG, "Set channel: %d MHz width: %d\n",
- chan->center_freq, chandef->width);
-
- /* update survey stats for the old channel before switching */
- spin_lock_bh(&common->cc_lock);
- ath_update_survey_stats(sc);
- spin_unlock_bh(&common->cc_lock);
-
- ath9k_cmn_get_channel(hw, ah, chandef);
-
- /*
- * If the operating channel changes, change the survey in-use flags
- * along with it.
- * Reset the survey data for the new channel, unless we're switching
- * back to the operating channel from an off-channel operation.
- */
- if (!offchannel && sc->cur_survey != &sc->survey[pos]) {
- if (sc->cur_survey)
- sc->cur_survey->filled &= ~SURVEY_INFO_IN_USE;
-
- sc->cur_survey = &sc->survey[pos];
-
- memset(sc->cur_survey, 0, sizeof(struct survey_info));
- sc->cur_survey->filled |= SURVEY_INFO_IN_USE;
- } else if (!(sc->survey[pos].filled & SURVEY_INFO_IN_USE)) {
- memset(&sc->survey[pos], 0, sizeof(struct survey_info));
- }
-
- hchan = &sc->sc_ah->channels[pos];
- r = ath_reset_internal(sc, hchan);
- if (r)
- return r;
-
- /*
- * The most recent snapshot of channel->noisefloor for the old
- * channel is only available after the hardware reset. Copy it to
- * the survey stats now.
- */
- if (old_pos >= 0)
- ath_update_survey_nf(sc, old_pos);
-
- /*
- * Enable radar pulse detection if on a DFS channel. Spectral
- * scanning and radar detection can not be used concurrently.
- */
- if (hw->conf.radar_enabled) {
- u32 rxfilter;
-
- /* set HW specific DFS configuration */
- ath9k_hw_set_radar_params(ah);
- rxfilter = ath9k_hw_getrxfilter(ah);
- rxfilter |= ATH9K_RX_FILTER_PHYRADAR |
- ATH9K_RX_FILTER_PHYERR;
- ath9k_hw_setrxfilter(ah, rxfilter);
- ath_dbg(common, DFS, "DFS enabled at freq %d\n",
- chan->center_freq);
- } else {
- /* perform spectral scan if requested. */
- if (test_bit(ATH_OP_SCANNING, &common->op_flags) &&
- sc->spectral_mode == SPECTRAL_CHANSCAN)
- ath9k_spectral_scan_trigger(hw);
- }
-
- return 0;
-}
-
static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta,
struct ieee80211_vif *vif)
{
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ieee80211_channel *curchan = hw->conf.chandef.chan;
+ struct ath_chanctx *ctx = sc->cur_chan;
struct ath9k_channel *init_channel;
int r;
ath9k_ps_wakeup(sc);
mutex_lock(&sc->mutex);
- init_channel = ath9k_cmn_get_channel(hw, ah, &hw->conf.chandef);
+ memcpy(&ctx->chandef, &hw->conf.chandef, sizeof(ctx->chandef));
+ init_channel = ath9k_cmn_get_channel(hw, ah, &ctx->chandef);
/* Reset SERDES registers */
ath9k_hw_configpcipowersave(ah, false);
}
if (!ah->curchan)
- ah->curchan = ath9k_cmn_get_channel(hw, ah, &hw->conf.chandef);
+ ah->curchan = ath9k_cmn_get_channel(hw, ah,
+ &sc->cur_chan->chandef);
ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
ath9k_hw_phy_disable(ah);
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ieee80211_conf *conf = &hw->conf;
+ struct ath_chanctx *ctx = sc->cur_chan;
bool reset_channel = false;
ath9k_ps_wakeup(sc);
}
if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || reset_channel) {
- if (ath_set_channel(sc, &hw->conf.chandef) < 0) {
+ ctx->offchannel = !!(conf->flags & IEEE80211_CONF_OFFCHANNEL);
+ if (ath_chanctx_set_channel(sc, ctx, &hw->conf.chandef) < 0) {
ath_err(common, "Unable to set channel\n");
mutex_unlock(&sc->mutex);
ath9k_ps_restore(sc);
ath_rx_addbuffer_edma(sc, ATH9K_RX_QUEUE_HP);
ath_rx_addbuffer_edma(sc, ATH9K_RX_QUEUE_LP);
ath_opmode_init(sc);
- ath9k_hw_startpcureceive(sc->sc_ah, !!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL));
+ ath9k_hw_startpcureceive(sc->sc_ah, sc->cur_chan->offchannel);
}
static void ath_edma_stop_recv(struct ath_softc *sc)
start_recv:
ath_opmode_init(sc);
- ath9k_hw_startpcureceive(ah, !!(sc->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL));
+ ath9k_hw_startpcureceive(ah, sc->cur_chan->offchannel);
return 0;
}
projects / cascardo / linux.git / commitdiff