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| author | Sujith Manoharan <c_manoha@qca.qualcomm.com> | 2012-02-16 07:21:11 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-02-27 20:05:42 +0100 |
| commit | f8b815dc0e0942c45919d814e319c14c1221fa81 (patch) | |
| tree | 887ba028b29f88d5c4b20a603218a92edb2dae4d | |
| parent | ath9k: Merge wiphy and misc debugfs files (diff) | |
| download | linux-f8b815dc0e0942c45919d814e319c14c1221fa81.tar.xz linux-f8b815dc0e0942c45919d814e319c14c1221fa81.zip | |
ath9k: Add a debugfs file to display reset statistics
Location: <debugfs_path>/ieee80211/phy#/ath9k/reset
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/debug.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index b2c60690255a..fe1f55f7c292 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -750,6 +750,38 @@ static ssize_t read_file_misc(struct file *file, char __user *user_buf, return retval; } +static ssize_t read_file_reset(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ath_softc *sc = file->private_data; + char buf[512]; + unsigned int len = 0; + + len += snprintf(buf + len, sizeof(buf) - len, + "%17s: %2d\n", "Baseband Hang", + sc->debug.stats.reset[RESET_TYPE_BB_HANG]); + len += snprintf(buf + len, sizeof(buf) - len, + "%17s: %2d\n", "Baseband Watchdog", + sc->debug.stats.reset[RESET_TYPE_BB_WATCHDOG]); + len += snprintf(buf + len, sizeof(buf) - len, + "%17s: %2d\n", "Fatal HW Error", + sc->debug.stats.reset[RESET_TYPE_FATAL_INT]); + len += snprintf(buf + len, sizeof(buf) - len, + "%17s: %2d\n", "TX HW error", + sc->debug.stats.reset[RESET_TYPE_TX_ERROR]); + len += snprintf(buf + len, sizeof(buf) - len, + "%17s: %2d\n", "TX Path Hang", + sc->debug.stats.reset[RESET_TYPE_TX_HANG]); + len += snprintf(buf + len, sizeof(buf) - len, + "%17s: %2d\n", "PLL RX Hang", + sc->debug.stats.reset[RESET_TYPE_PLL_HANG]); + + if (len > sizeof(buf)) + len = sizeof(buf); + + return simple_read_from_buffer(user_buf, count, ppos, buf, len); +} + void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf, struct ath_tx_status *ts, struct ath_txq *txq, unsigned int flags) @@ -837,6 +869,13 @@ static const struct file_operations fops_misc = { .llseek = default_llseek, }; +static const struct file_operations fops_reset = { + .read = read_file_reset, + .open = ath9k_debugfs_open, + .owner = THIS_MODULE, + .llseek = default_llseek, +}; + static ssize_t read_file_recv(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { @@ -1549,6 +1588,8 @@ int ath9k_init_debug(struct ath_hw *ah) &fops_stations); debugfs_create_file("misc", S_IRUSR, sc->debug.debugfs_phy, sc, &fops_misc); + debugfs_create_file("reset", S_IRUSR, sc->debug.debugfs_phy, sc, + &fops_reset); debugfs_create_file("recv", S_IRUSR, sc->debug.debugfs_phy, sc, &fops_recv); debugfs_create_file("rx_chainmask", S_IRUSR | S_IWUSR, |