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ath9k: allow run-time change of the chanbw debugfs file 

SVN-Revision: 29257
lede-17.01
Felix Fietkau 2011-11-19 16:56:44 +00:00
parent d46e17548b
commit c6f0ca6c00
3 changed files with 74 additions and 6 deletions
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74
package/mac80211/patches/513-ath9k_channelbw_debugfs.patch
View File

@ -8,20 +8,88 @@
int chan_idx;
int chan_is_ht;
struct survey_info *cur_survey;
@@ -654,6 +655,7 @@ struct ath_softc {
u8 ant_tx, ant_rx;
};
+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
@@ -1724,6 +1724,9 @@ int ath9k_init_debug(struct ath_hw *ah)
@@ -1663,6 +1663,50 @@ 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 (!sc->ps_idle)
+ 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 = ath9k_debugfs_open,
+ .owner = THIS_MODULE,
+ .llseek = default_llseek,
+};
+
+
int ath9k_init_debug(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
@@ -1724,6 +1768,9 @@ int ath9k_init_debug(struct ath_hw *ah)
debugfs_create_file("eeprom", S_IRUSR, sc->debug.debugfs_phy, sc,
&fops_eeprom);
+ debugfs_create_u32("chanbw", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
+ &sc->chan_bw);
+ debugfs_create_file("chanbw", S_IRUSR | S_IWUSR, sc->debug.debugfs_phy,
+ sc, &fops_chanbw);
+
sc->debug.regidx = 0;
memset(&sc->debug.bb_mac_samp, 0, sizeof(sc->debug.bb_mac_samp));
sc->debug.sampidx = 0;
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1554,7 +1554,7 @@ static void ath9k_disable_ps(struct ath_
}
-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;
@@ -1606,9 +1606,10 @@ static int ath9k_config(struct ieee80211
if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {

4
package/mac80211/patches/531-ath9k_cur_txpower.patch
View File

@ -1,6 +1,6 @@
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1684,6 +1684,8 @@ static int ath9k_config(struct ieee80211
@@ -1684,6 +1684,8 @@ int ath9k_config(struct ieee80211_hw *hw
return -EINVAL;
}
@ -9,7 +9,7 @@
/*
* The most recent snapshot of channel->noisefloor for the old
* channel is only available after the hardware reset. Copy it to
@@ -1699,6 +1701,7 @@ static int ath9k_config(struct ieee80211
@@ -1699,6 +1701,7 @@ int ath9k_config(struct ieee80211_hw *hw
sc->config.txpowlimit = 2 * conf->power_level;
ath9k_cmn_update_txpow(ah, sc->curtxpow,
sc->config.txpowlimit, &sc->curtxpow);

2
package/mac80211/patches/540-ath9k_limit_qlen.patch
View File

@ -20,7 +20,7 @@
spinlock_t txbuflock;
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -1685,6 +1685,10 @@ int ath9k_init_debug(struct ath_hw *ah)
@@ -1729,6 +1729,10 @@ int ath9k_init_debug(struct ath_hw *ah)
sc, &fops_wiphy);
debugfs_create_file("xmit", S_IRUSR, sc->debug.debugfs_phy, sc,
&fops_xmit);