111 lines
3.2 KiB
Diff
111 lines
3.2 KiB
Diff
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
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+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
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@@ -701,6 +701,7 @@ 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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struct survey_info *cur_survey;
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struct survey_info survey[ATH9K_NUM_CHANNELS];
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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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@@ -1918,6 +1918,50 @@ 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 (kstrtoul(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 (!test_bit(SC_OP_INVALID, &sc->sc_flags))
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+ ath9k_ops.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 = simple_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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@@ -1937,6 +1981,8 @@ 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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debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy, sc,
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&fops_dma);
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debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy, sc,
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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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@@ -1200,8 +1200,10 @@ static int ath9k_config(struct ieee80211
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if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || reset_channel) {
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struct ieee80211_channel *curchan = hw->conf.chandef.chan;
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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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+ u32 oldflags;
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unsigned long flags;
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if (ah->curchan)
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@@ -1238,7 +1240,23 @@ 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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ath9k_ps_restore(sc);
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