static int read_file_reset(struct seq_file *file, void *data)
{
- struct ieee80211_hw *hw = dev_get_drvdata(file->private);
- struct ath_softc *sc = hw->priv;
+ struct ath_softc *sc = file->private;
static const char * const reset_cause[__RESET_TYPE_MAX] = {
+ [RESET_TYPE_USER] = "User reset",
[RESET_TYPE_BB_HANG] = "Baseband Hang",
[RESET_TYPE_BB_WATCHDOG] = "Baseband Watchdog",
[RESET_TYPE_FATAL_INT] = "Fatal HW Error",
return 0;
}
+static int open_file_reset(struct inode *inode, struct file *f)
+{
+ return single_open(f, read_file_reset, inode->i_private);
+}
+
+static ssize_t write_file_reset(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct ath_softc *sc = file_inode(file)->i_private;
+ struct ath_hw *ah = sc->sc_ah;
+ struct ath_common *common = ath9k_hw_common(ah);
+ unsigned long val;
+ 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 (kstrtoul(buf, 0, &val))
+ return -EINVAL;
+
+ if (val != 1)
+ return -EINVAL;
+
+ /* avoid rearming hw_reset_work on shutdown */
+ mutex_lock(&sc->mutex);
+ if (test_bit(ATH_OP_INVALID, &common->op_flags)) {
+ mutex_unlock(&sc->mutex);
+ return -EBUSY;
+ }
+
+ ath9k_queue_reset(sc, RESET_TYPE_USER);
+ mutex_unlock(&sc->mutex);
+
+ return count;
+}
+
+static const struct file_operations fops_reset = {
+ .read = seq_read,
+ .write = write_file_reset,
+ .open = open_file_reset,
+ .owner = THIS_MODULE,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
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)
read_file_queues);
debugfs_create_devm_seqfile(sc->dev, "misc", sc->debug.debugfs_phy,
read_file_misc);
- debugfs_create_devm_seqfile(sc->dev, "reset", sc->debug.debugfs_phy,
- read_file_reset);
+ debugfs_create_file("reset", 0600, sc->debug.debugfs_phy,
+ sc, &fops_reset);
ath9k_cmn_debug_recv(sc->debug.debugfs_phy, &sc->debug.stats.rxstats);
ath9k_cmn_debug_phy_err(sc->debug.debugfs_phy, &sc->debug.stats.rxstats);