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141 lines
3.9 KiB
141 lines
3.9 KiB
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
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+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
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@@ -625,6 +625,7 @@ struct ath_softc {
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struct ieee80211_hw *hw;
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struct device *dev;
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+ u32 chan_bw;
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int chan_idx;
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int chan_is_ht;
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struct survey_info *cur_survey;
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@@ -692,6 +693,7 @@ struct ath_softc {
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u8 ant_tx, ant_rx;
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};
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+int ath9k_config(struct ieee80211_hw *hw, u32 changed);
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void ath9k_tasklet(unsigned long data);
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int ath_cabq_update(struct ath_softc *);
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--- a/drivers/net/wireless/ath/ath9k/debug.c
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+++ b/drivers/net/wireless/ath/ath9k/debug.c
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@@ -1599,6 +1599,50 @@ static const struct file_operations fops
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.owner = THIS_MODULE
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};
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+
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+static ssize_t read_file_chan_bw(struct file *file, char __user *user_buf,
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+ size_t count, loff_t *ppos)
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+{
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+ struct ath_softc *sc = file->private_data;
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+ char buf[32];
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+ unsigned int len;
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+
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+ len = sprintf(buf, "0x%08x\n", sc->chan_bw);
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+ return simple_read_from_buffer(user_buf, count, ppos, buf, len);
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+}
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+
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+static ssize_t write_file_chan_bw(struct file *file, const char __user *user_buf,
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+ size_t count, loff_t *ppos)
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+{
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+ struct ath_softc *sc = file->private_data;
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+ unsigned long chan_bw;
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+ char buf[32];
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+ ssize_t len;
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+
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+ len = min(count, sizeof(buf) - 1);
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+ if (copy_from_user(buf, user_buf, len))
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+ return -EFAULT;
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+
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+ buf[len] = '\0';
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+ if (strict_strtoul(buf, 0, &chan_bw))
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+ return -EINVAL;
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+
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+ sc->chan_bw = chan_bw;
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+ if (!(sc->sc_flags & SC_OP_INVALID))
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+ ath9k_config(sc->hw, IEEE80211_CONF_CHANGE_CHANNEL);
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+
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+ return count;
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+}
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+
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+static const struct file_operations fops_chanbw = {
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+ .read = read_file_chan_bw,
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+ .write = write_file_chan_bw,
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+ .open = ath9k_debugfs_open,
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+ .owner = THIS_MODULE,
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+ .llseek = default_llseek,
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+};
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+
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+
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int ath9k_init_debug(struct ath_hw *ah)
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{
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struct ath_common *common = ath9k_hw_common(ah);
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@@ -1663,5 +1707,8 @@ int ath9k_init_debug(struct ath_hw *ah)
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debugfs_create_file("eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
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&fops_eeprom);
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+ debugfs_create_file("chanbw", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
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+ sc, &fops_chanbw);
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+
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return 0;
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}
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--- a/drivers/net/wireless/ath/ath9k/main.c
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+++ b/drivers/net/wireless/ath/ath9k/main.c
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@@ -1535,7 +1535,7 @@ static void ath9k_disable_ps(struct ath_
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}
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-static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
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+int ath9k_config(struct ieee80211_hw *hw, u32 changed)
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{
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struct ath_softc *sc = hw->priv;
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struct ath_hw *ah = sc->sc_ah;
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@@ -1579,9 +1579,11 @@ static int ath9k_config(struct ieee80211
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if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
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struct ieee80211_channel *curchan = hw->conf.channel;
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+ struct ath9k_channel *hchan;
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int pos = curchan->hw_value;
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int old_pos = -1;
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unsigned long flags;
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+ u32 oldflags;
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if (ah->curchan)
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old_pos = ah->curchan - &ah->channels[0];
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@@ -1629,7 +1631,23 @@ static int ath9k_config(struct ieee80211
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memset(&sc->survey[pos], 0, sizeof(struct survey_info));
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}
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- if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) {
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+ hchan = &sc->sc_ah->channels[pos];
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+ oldflags = hchan->channelFlags;
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+ switch (sc->chan_bw) {
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+ case 5:
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+ hchan->channelFlags &= ~CHANNEL_HALF;
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+ hchan->channelFlags |= CHANNEL_QUARTER;
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+ break;
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+ case 10:
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+ hchan->channelFlags &= ~CHANNEL_QUARTER;
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+ hchan->channelFlags |= CHANNEL_HALF;
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+ break;
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+ default:
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+ hchan->channelFlags &= ~(CHANNEL_HALF | CHANNEL_QUARTER);
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+ break;
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+ }
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+
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+ if (ath_set_channel(sc, hw, hchan) < 0) {
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ath_err(common, "Unable to set channel\n");
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mutex_unlock(&sc->mutex);
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return -EINVAL;
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--- a/drivers/net/wireless/ath/ath9k/hw.c
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+++ b/drivers/net/wireless/ath/ath9k/hw.c
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@@ -1570,6 +1570,10 @@ int ath9k_hw_reset(struct ath_hw *ah, st
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caldata->rtt_hist.num_readings)
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allow_fbs = true;
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+ if (!ah->curchan || ((ah->curchan->channelFlags ^ chan->channelFlags) &
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+ (CHANNEL_HALF | CHANNEL_QUARTER)))
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+ bChannelChange = false;
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+
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if (bChannelChange &&
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(ah->chip_fullsleep != true) &&
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(ah->curchan != NULL) &&
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