From c6f0ca6c006c28a3fc3db8b9e4fb30ef2aee2a28 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Sat, 19 Nov 2011 16:56:44 +0000
Subject: [PATCH] ath9k: allow run-time change of the chanbw debugfs file
SVN-Revision: 29257
---
.../patches/513-ath9k_channelbw_debugfs.patch | 74 ++++++++++++++++++-
.../patches/531-ath9k_cur_txpower.patch | 4 +-
.../patches/540-ath9k_limit_qlen.patch | 2 +-
3 files changed, 74 insertions(+), 6 deletions(-)
diff --git a/package/mac80211/patches/513-ath9k_channelbw_debugfs.patch b/package/mac80211/patches/513-ath9k_channelbw_debugfs.patch
index e2cf507b68..ded102e144 100644
--- a/package/mac80211/patches/513-ath9k_channelbw_debugfs.patch
+++ b/package/mac80211/patches/513-ath9k_channelbw_debugfs.patch
@@ -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) {
diff --git a/package/mac80211/patches/531-ath9k_cur_txpower.patch b/package/mac80211/patches/531-ath9k_cur_txpower.patch
index a8eb8a6cf3..760f4d754e 100644
--- a/package/mac80211/patches/531-ath9k_cur_txpower.patch
+++ b/package/mac80211/patches/531-ath9k_cur_txpower.patch
@@ -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);
diff --git a/package/mac80211/patches/540-ath9k_limit_qlen.patch b/package/mac80211/patches/540-ath9k_limit_qlen.patch
index 0831392ea8..10dde1bf9c 100644
--- a/package/mac80211/patches/540-ath9k_limit_qlen.patch
+++ b/package/mac80211/patches/540-ath9k_limit_qlen.patch
@@ -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);
--
GitLab