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| author | Kalle Valo <kalle.valo@nokia.com> | 2009-11-30 10:17:38 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-12-21 18:55:44 -0500 |
| commit | b7339b1de0f7b6b8c95a6df87ea2221521328d11 (patch) | |
| tree | fe6aad875334f58274898a2fe5e3a3f1a4e743f5 | |
| parent | 7dffb55b8a73228499ee65a3439f82112f4391c7 (diff) | |
| download | lwn-b7339b1de0f7b6b8c95a6df87ea2221521328d11.tar.gz lwn-b7339b1de0f7b6b8c95a6df87ea2221521328d11.zip | |
wl1251: add tx queue status to debugfs
Sometimes when debugging the state is good info.
Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/wl12xx/wl1251.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/wl12xx/wl1251_debugfs.c | 23 |
2 files changed, 24 insertions, 0 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1251.h b/drivers/net/wireless/wl12xx/wl1251.h index 054533f7a124..6301578d1565 100644 --- a/drivers/net/wireless/wl12xx/wl1251.h +++ b/drivers/net/wireless/wl12xx/wl1251.h @@ -247,6 +247,7 @@ struct wl1251_debugfs { struct dentry *rxpipe_tx_xfr_host_int_trig_rx_data; struct dentry *tx_queue_len; + struct dentry *tx_queue_status; struct dentry *retry_count; struct dentry *excessive_retries; diff --git a/drivers/net/wireless/wl12xx/wl1251_debugfs.c b/drivers/net/wireless/wl12xx/wl1251_debugfs.c index a00723059f83..0ccba57fb9fb 100644 --- a/drivers/net/wireless/wl12xx/wl1251_debugfs.c +++ b/drivers/net/wireless/wl12xx/wl1251_debugfs.c @@ -237,6 +237,27 @@ static const struct file_operations tx_queue_len_ops = { .open = wl1251_open_file_generic, }; +static ssize_t tx_queue_status_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + struct wl1251 *wl = file->private_data; + char buf[3], status; + int len; + + if (wl->tx_queue_stopped) + status = 's'; + else + status = 'r'; + + len = scnprintf(buf, sizeof(buf), "%c\n", status); + return simple_read_from_buffer(userbuf, count, ppos, buf, len); +} + +static const struct file_operations tx_queue_status_ops = { + .read = tx_queue_status_read, + .open = wl1251_open_file_generic, +}; + static void wl1251_debugfs_delete_files(struct wl1251 *wl) { DEBUGFS_FWSTATS_DEL(tx, internal_desc_overflow); @@ -331,6 +352,7 @@ static void wl1251_debugfs_delete_files(struct wl1251 *wl) DEBUGFS_FWSTATS_DEL(rxpipe, tx_xfr_host_int_trig_rx_data); DEBUGFS_DEL(tx_queue_len); + DEBUGFS_DEL(tx_queue_status); DEBUGFS_DEL(retry_count); DEBUGFS_DEL(excessive_retries); } @@ -431,6 +453,7 @@ static int wl1251_debugfs_add_files(struct wl1251 *wl) DEBUGFS_FWSTATS_ADD(rxpipe, tx_xfr_host_int_trig_rx_data); DEBUGFS_ADD(tx_queue_len, wl->debugfs.rootdir); + DEBUGFS_ADD(tx_queue_status, wl->debugfs.rootdir); DEBUGFS_ADD(retry_count, wl->debugfs.rootdir); DEBUGFS_ADD(excessive_retries, wl->debugfs.rootdir); |