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Diffstat (limited to 'package/kernel/mac80211/patches/512-ath9k_channelbw_debugfs.patch')
-rw-r--r--package/kernel/mac80211/patches/512-ath9k_channelbw_debugfs.patch128
1 files changed, 128 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/512-ath9k_channelbw_debugfs.patch b/package/kernel/mac80211/patches/512-ath9k_channelbw_debugfs.patch
new file mode 100644
index 0000000000..ef87a35922
--- /dev/null
+++ b/package/kernel/mac80211/patches/512-ath9k_channelbw_debugfs.patch
@@ -0,0 +1,128 @@
+--- a/drivers/net/wireless/ath/ath9k/ath9k.h
++++ b/drivers/net/wireless/ath/ath9k/ath9k.h
+@@ -696,6 +696,7 @@ struct ath_softc {
+ struct ieee80211_hw *hw;
+ struct device *dev;
+
++ u32 chan_bw;
+ struct survey_info *cur_survey;
+ struct survey_info survey[ATH9K_NUM_CHANNELS];
+
+@@ -899,6 +900,7 @@ struct fft_sample_ht20 {
+ u8 data[SPECTRAL_HT20_NUM_BINS];
+ } __packed;
+
++int ath9k_config(struct ieee80211_hw *hw, u32 changed);
+ void ath9k_tasklet(unsigned long data);
+ int ath_cabq_update(struct ath_softc *);
+
+--- a/drivers/net/wireless/ath/ath9k/debug.c
++++ b/drivers/net/wireless/ath/ath9k/debug.c
+@@ -1782,6 +1782,50 @@ static const struct file_operations fops
+ .owner = THIS_MODULE
+ };
+
++
++static ssize_t read_file_chan_bw(struct file *file, char __user *user_buf,
++ size_t count, loff_t *ppos)
++{
++ struct ath_softc *sc = file->private_data;
++ char buf[32];
++ unsigned int len;
++
++ len = sprintf(buf, "0x%08x\n", sc->chan_bw);
++ return simple_read_from_buffer(user_buf, count, ppos, buf, len);
++}
++
++static ssize_t write_file_chan_bw(struct file *file, const char __user *user_buf,
++ size_t count, loff_t *ppos)
++{
++ struct ath_softc *sc = file->private_data;
++ unsigned long chan_bw;
++ char buf[32];
++ ssize_t len;
++
++ len = min(count, sizeof(buf) - 1);
++ if (copy_from_user(buf, user_buf, len))
++ return -EFAULT;
++
++ buf[len] = '\0';
++ if (strict_strtoul(buf, 0, &chan_bw))
++ return -EINVAL;
++
++ sc->chan_bw = chan_bw;
++ if (!test_bit(SC_OP_INVALID, &sc->sc_flags))
++ ath9k_config(sc->hw, IEEE80211_CONF_CHANGE_CHANNEL);
++
++ return count;
++}
++
++static const struct file_operations fops_chanbw = {
++ .read = read_file_chan_bw,
++ .write = write_file_chan_bw,
++ .open = simple_open,
++ .owner = THIS_MODULE,
++ .llseek = default_llseek,
++};
++
++
+ int ath9k_init_debug(struct ath_hw *ah)
+ {
+ struct ath_common *common = ath9k_hw_common(ah);
+@@ -1801,6 +1845,8 @@ int ath9k_init_debug(struct ath_hw *ah)
+
+ debugfs_create_file("eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
+ &fops_eeprom);
++ debugfs_create_file("chanbw", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
++ sc, &fops_chanbw);
+ debugfs_create_file("dma", S_IRUSR, sc->debug.debugfs_phy, sc,
+ &fops_dma);
+ debugfs_create_file("interrupt", S_IRUSR, sc->debug.debugfs_phy, sc,
+--- a/drivers/net/wireless/ath/ath9k/main.c
++++ b/drivers/net/wireless/ath/ath9k/main.c
+@@ -1139,7 +1139,7 @@ int ath9k_spectral_scan_config(struct ie
+ return 0;
+ }
+
+-static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
++int ath9k_config(struct ieee80211_hw *hw, u32 changed)
+ {
+ struct ath_softc *sc = hw->priv;
+ struct ath_hw *ah = sc->sc_ah;
+@@ -1195,9 +1195,11 @@ static int ath9k_config(struct ieee80211
+ struct ieee80211_channel *curchan = hw->conf.chandef.chan;
+ enum nl80211_channel_type channel_type =
+ cfg80211_get_chandef_type(&conf->chandef);
++ struct ath9k_channel *hchan;
+ int pos = curchan->hw_value;
+ int old_pos = -1;
+ unsigned long flags;
++ u32 oldflags;
+
+ if (ah->curchan)
+ old_pos = ah->curchan - &ah->channels[0];
+@@ -1233,7 +1235,23 @@ static int ath9k_config(struct ieee80211
+ memset(&sc->survey[pos], 0, sizeof(struct survey_info));
+ }
+
+- if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) {
++ hchan = &sc->sc_ah->channels[pos];
++ oldflags = hchan->channelFlags;
++ switch (sc->chan_bw) {
++ case 5:
++ hchan->channelFlags &= ~CHANNEL_HALF;
++ hchan->channelFlags |= CHANNEL_QUARTER;
++ break;
++ case 10:
++ hchan->channelFlags &= ~CHANNEL_QUARTER;
++ hchan->channelFlags |= CHANNEL_HALF;
++ break;
++ default:
++ hchan->channelFlags &= ~(CHANNEL_HALF | CHANNEL_QUARTER);
++ break;
++ }
++
++ if (ath_set_channel(sc, hw, hchan) < 0) {
+ ath_err(common, "Unable to set channel\n");
+ mutex_unlock(&sc->mutex);
+ ath9k_ps_restore(sc);