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ath9k: add a few debugfs files to access the chainmasks and registers 

SVN-Revision: 18503
lede-17.01
Felix Fietkau 2009-11-23 20:38:18 +00:00
parent e39038f688
commit e69581be06
2 changed files with 258 additions and 0 deletions
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130
package/mac80211/patches/520-ath9k_debugfs_chainmask.patch Normal file
View File

@ -0,0 +1,130 @@
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -71,6 +71,90 @@ static const struct file_operations fops
.owner = THIS_MODULE
};
+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)
{
@@ -568,6 +652,16 @@ int ath9k_init_debug(struct ath_hw *ah)
if (!sc->debug.debugfs_debug)
goto err;
+ 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)
@@ -611,6 +705,8 @@ 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;

128
package/mac80211/patches/530-ath9k_debugfs_regaccess.patch Normal file
View File

@ -0,0 +1,128 @@
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -634,6 +634,86 @@ static const struct file_operations fops
.owner = THIS_MODULE
};
+static ssize_t read_file_regidx(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 = snprintf(buf, sizeof(buf), "0x%08x\n", sc->debug.regidx);
+ return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ath_softc *sc = file->private_data;
+ unsigned long regidx;
+ 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, &regidx))
+ return -EINVAL;
+
+ sc->debug.regidx = regidx;
+ return count;
+}
+
+static const struct file_operations fops_regidx = {
+ .read = read_file_regidx,
+ .write = write_file_regidx,
+ .open = ath9k_debugfs_open,
+ .owner = THIS_MODULE
+};
+
+static ssize_t read_file_regval(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ath_softc *sc = file->private_data;
+ struct ath_hw *ah = sc->sc_ah;
+ char buf[32];
+ unsigned int len;
+ u32 regval;
+
+ regval = REG_READ_D(ah, sc->debug.regidx);
+ len = snprintf(buf, sizeof(buf), "0x%08x\n", regval);
+ return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ath_softc *sc = file->private_data;
+ struct ath_hw *ah = sc->sc_ah;
+ unsigned long regval;
+ 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, &regval))
+ return -EINVAL;
+
+ REG_WRITE_D(ah, sc->debug.regidx, regval);
+ return count;
+}
+
+static const struct file_operations fops_regval = {
+ .read = read_file_regval,
+ .write = write_file_regval,
+ .open = ath9k_debugfs_open,
+ .owner = THIS_MODULE
+};
+
int ath9k_init_debug(struct ath_hw *ah)
{
struct ath_common *common = ath9k_hw_common(ah);
@@ -694,6 +774,17 @@ int ath9k_init_debug(struct ath_hw *ah)
if (!sc->debug.debugfs_xmit)
goto err;
+ sc->debug.regidx = 0;
+ sc->debug.debugfs_regidx = debugfs_create_file("regidx",
+ S_IRUSR|S_IWUSR, sc->debug.debugfs_phy, sc, &fops_regidx);
+ if (!sc->debug.debugfs_regidx)
+ goto err;
+
+ sc->debug.debugfs_regval = debugfs_create_file("regval",
+ S_IRUSR|S_IWUSR, sc->debug.debugfs_phy, sc, &fops_regval);
+ if (!sc->debug.debugfs_regval)
+ goto err;
+
return 0;
err:
ath9k_exit_debug(ah);
@@ -707,6 +798,8 @@ void ath9k_exit_debug(struct ath_hw *ah)
debugfs_remove(sc->debug.debugfs_tx_chainmask);
debugfs_remove(sc->debug.debugfs_rx_chainmask);
+ debugfs_remove(sc->debug.debugfs_regval);
+ debugfs_remove(sc->debug.debugfs_regidx);
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
@@ -132,6 +132,9 @@ struct ath9k_debug {
struct dentry *debugfs_rcstat;
struct dentry *debugfs_wiphy;
struct dentry *debugfs_xmit;
+ struct dentry *debugfs_regidx;
+ struct dentry *debugfs_regval;
+ u32 regidx;
struct ath_stats stats;
};