mirror of https://github.com/aredn/aredn.git
100 lines
3.2 KiB
Diff
100 lines
3.2 KiB
Diff
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--- /dev/null
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+++ b/package/kernel/mac80211/patches/ath/301-ath-reset.patch
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@@ -0,0 +1,96 @@
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+diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
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+index 4c81b1d7f417..fb7a2952d0ce 100644
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+--- a/drivers/net/wireless/ath/ath9k/debug.c
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++++ b/drivers/net/wireless/ath/ath9k/debug.c
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+@@ -749,9 +749,9 @@ static int read_file_misc(struct seq_file *file, void *data)
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+
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+ static int read_file_reset(struct seq_file *file, void *data)
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+ {
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+- struct ieee80211_hw *hw = dev_get_drvdata(file->private);
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+- struct ath_softc *sc = hw->priv;
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++ struct ath_softc *sc = file->private;
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+ static const char * const reset_cause[__RESET_TYPE_MAX] = {
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++ [RESET_TYPE_USER] = "User reset",
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+ [RESET_TYPE_BB_HANG] = "Baseband Hang",
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+ [RESET_TYPE_BB_WATCHDOG] = "Baseband Watchdog",
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+ [RESET_TYPE_FATAL_INT] = "Fatal HW Error",
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+@@ -779,6 +779,55 @@ static int read_file_reset(struct seq_file *file, void *data)
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+ return 0;
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+ }
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+
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++static int open_file_reset(struct inode *inode, struct file *f)
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++{
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++ return single_open(f, read_file_reset, inode->i_private);
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++}
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++
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++static ssize_t write_file_reset(struct file *file,
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++ const char __user *user_buf,
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++ size_t count, loff_t *ppos)
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++{
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++ struct ath_softc *sc = file_inode(file)->i_private;
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++ struct ath_hw *ah = sc->sc_ah;
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++ struct ath_common *common = ath9k_hw_common(ah);
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++ unsigned long val;
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++ char buf[32];
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++ ssize_t len;
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++
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++ len = min(count, sizeof(buf) - 1);
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++ if (copy_from_user(buf, user_buf, len))
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++ return -EFAULT;
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++
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++ buf[len] = '\0';
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++ if (kstrtoul(buf, 0, &val))
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++ return -EINVAL;
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++
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++ if (val != 1)
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++ return -EINVAL;
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++
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++ /* avoid rearming hw_reset_work on shutdown */
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++ mutex_lock(&sc->mutex);
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++ if (test_bit(ATH_OP_INVALID, &common->op_flags)) {
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++ mutex_unlock(&sc->mutex);
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++ return -EBUSY;
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++ }
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++
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++ ath9k_queue_reset(sc, RESET_TYPE_USER);
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++ mutex_unlock(&sc->mutex);
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++
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++ return count;
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++}
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++
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++static const struct file_operations fops_reset = {
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++ .read = seq_read,
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++ .write = write_file_reset,
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++ .open = open_file_reset,
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++ .owner = THIS_MODULE,
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++ .llseek = seq_lseek,
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++ .release = single_release,
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++};
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++
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+ void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
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+ struct ath_tx_status *ts, struct ath_txq *txq,
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+ unsigned int flags)
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+@@ -1393,8 +1442,8 @@ int ath9k_init_debug(struct ath_hw *ah)
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+ read_file_queues);
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+ debugfs_create_devm_seqfile(sc->dev, "misc", sc->debug.debugfs_phy,
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+ read_file_misc);
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+- debugfs_create_devm_seqfile(sc->dev, "reset", sc->debug.debugfs_phy,
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+- read_file_reset);
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++ debugfs_create_file("reset", 0600, sc->debug.debugfs_phy,
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++ sc, &fops_reset);
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+
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+ ath9k_cmn_debug_recv(sc->debug.debugfs_phy, &sc->debug.stats.rxstats);
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+ ath9k_cmn_debug_phy_err(sc->debug.debugfs_phy, &sc->debug.stats.rxstats);
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+diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h
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+index 33826aa13687..389459c04d14 100644
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+--- a/drivers/net/wireless/ath/ath9k/debug.h
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++++ b/drivers/net/wireless/ath/ath9k/debug.h
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+@@ -39,6 +39,7 @@ struct fft_sample_tlv;
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+ #endif
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+
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+ enum ath_reset_type {
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++ RESET_TYPE_USER,
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+ RESET_TYPE_BB_HANG,
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+ RESET_TYPE_BB_WATCHDOG,
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+ RESET_TYPE_FATAL_INT,
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+
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