From 5e3ba36eb5ce79c1545260d62283332917d77464 Mon Sep 17 00:00:00 2001
From: nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Mon, 23 Nov 2009 22:01:45 +0000
Subject: separate ath9k debugfs support from ath9k debugging, use the mac80211
 debugfs config option to enable it

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@18505 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 .../patches/530-ath9k_debugfs_chainmask.patch      | 130 +++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 package/mac80211/patches/530-ath9k_debugfs_chainmask.patch

(limited to 'package/mac80211/patches/530-ath9k_debugfs_chainmask.patch')

diff --git a/package/mac80211/patches/530-ath9k_debugfs_chainmask.patch b/package/mac80211/patches/530-ath9k_debugfs_chainmask.patch
new file mode 100644
index 000000000..a26b4dc8a
--- /dev/null
+++ b/package/mac80211/patches/530-ath9k_debugfs_chainmask.patch
@@ -0,0 +1,130 @@
+--- a/drivers/net/wireless/ath/ath9k/debug.c
++++ b/drivers/net/wireless/ath/ath9k/debug.c
+@@ -75,6 +75,90 @@ static const struct file_operations fops
+ 
+ #endif
+ 
++static ssize_t read_file_tx_chainmask(struct file *file, char __user *user_buf,
++			     size_t count, loff_t *ppos)
++{
++	struct ath_softc *sc = file->private_data;
++	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
++	char buf[32];
++	unsigned int len;
++
++	len = snprintf(buf, sizeof(buf), "0x%08x\n", common->tx_chainmask);
++	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
++}
++
++static ssize_t write_file_tx_chainmask(struct file *file, const char __user *user_buf,
++			     size_t count, loff_t *ppos)
++{
++	struct ath_softc *sc = file->private_data;
++	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
++	unsigned long mask;
++	char buf[32];
++	ssize_t len;
++
++	len = min(count, sizeof(buf) - 1);
++	if (copy_from_user(buf, user_buf, len))
++		return -EINVAL;
++
++	buf[len] = '\0';
++	if (strict_strtoul(buf, 0, &mask))
++		return -EINVAL;
++
++	common->tx_chainmask = mask;
++	sc->sc_ah->caps.tx_chainmask = mask;
++	return count;
++}
++
++static const struct file_operations fops_tx_chainmask = {
++	.read = read_file_tx_chainmask,
++	.write = write_file_tx_chainmask,
++	.open = ath9k_debugfs_open,
++	.owner = THIS_MODULE
++};
++
++
++static ssize_t read_file_rx_chainmask(struct file *file, char __user *user_buf,
++			     size_t count, loff_t *ppos)
++{
++	struct ath_softc *sc = file->private_data;
++	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
++	char buf[32];
++	unsigned int len;
++
++	len = snprintf(buf, sizeof(buf), "0x%08x\n", common->rx_chainmask);
++	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
++}
++
++static ssize_t write_file_rx_chainmask(struct file *file, const char __user *user_buf,
++			     size_t count, loff_t *ppos)
++{
++	struct ath_softc *sc = file->private_data;
++	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
++	unsigned long mask;
++	char buf[32];
++	ssize_t len;
++
++	len = min(count, sizeof(buf) - 1);
++	if (copy_from_user(buf, user_buf, len))
++		return -EINVAL;
++
++	buf[len] = '\0';
++	if (strict_strtoul(buf, 0, &mask))
++		return -EINVAL;
++
++	common->rx_chainmask = mask;
++	sc->sc_ah->caps.rx_chainmask = mask;
++	return count;
++}
++
++static const struct file_operations fops_rx_chainmask = {
++	.read = read_file_rx_chainmask,
++	.write = write_file_rx_chainmask,
++	.open = ath9k_debugfs_open,
++	.owner = THIS_MODULE
++};
++
++
+ static ssize_t read_file_dma(struct file *file, char __user *user_buf,
+ 			     size_t count, loff_t *ppos)
+ {
+@@ -574,6 +658,16 @@ int ath9k_init_debug(struct ath_hw *ah)
+ 		goto err;
+ #endif
+ 
++	sc->debug.debugfs_rx_chainmask = debugfs_create_file("rx_chainmask",
++		S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, sc, &fops_rx_chainmask);
++	if (!sc->debug.debugfs_rx_chainmask)
++		goto err;
++
++	sc->debug.debugfs_tx_chainmask = debugfs_create_file("tx_chainmask",
++		S_IRUSR | S_IWUSR, sc->debug.debugfs_phy, sc, &fops_tx_chainmask);
++	if (!sc->debug.debugfs_tx_chainmask)
++		goto err;
++
+ 	sc->debug.debugfs_dma = debugfs_create_file("dma", S_IRUSR,
+ 				       sc->debug.debugfs_phy, sc, &fops_dma);
+ 	if (!sc->debug.debugfs_dma)
+@@ -617,6 +711,8 @@ void ath9k_exit_debug(struct ath_hw *ah)
+ 	struct ath_common *common = ath9k_hw_common(ah);
+ 	struct ath_softc *sc = (struct ath_softc *) common->priv;
+ 
++	debugfs_remove(sc->debug.debugfs_tx_chainmask);
++	debugfs_remove(sc->debug.debugfs_rx_chainmask);
+ 	debugfs_remove(sc->debug.debugfs_xmit);
+ 	debugfs_remove(sc->debug.debugfs_wiphy);
+ 	debugfs_remove(sc->debug.debugfs_rcstat);
+--- a/drivers/net/wireless/ath/ath9k/debug.h
++++ b/drivers/net/wireless/ath/ath9k/debug.h
+@@ -123,6 +123,8 @@ struct ath_stats {
+ };
+ 
+ struct ath9k_debug {
++	struct dentry *debugfs_rx_chainmask;
++	struct dentry *debugfs_tx_chainmask;
+ 	struct dentry *debugfs_phy;
+ 	struct dentry *debugfs_debug;
+ 	struct dentry *debugfs_dma;
-- 
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