From: Eyal Shapira <eyal@xxxxxxxxxx>
Add read/write to suspend_dtim_interval file which
controls the number of DTIM periods between wakeups
while the host is suspended.
The value while the host is resumed is controlled
by the file dtim_interval which existed previously.
Signed-off-by: Eyal Shapira <eyal@xxxxxxxxxx>
Signed-off-by: Eliad Peller <eliad@xxxxxxxxxx>
---
drivers/net/wireless/wl12xx/debugfs.c | 59 +++++++++++++++++++++++++++++++++
1 files changed, 59 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/wl12xx/debugfs.c b/drivers/net/wireless/wl12xx/debugfs.c
index 4dcb3f7..15353fa 100644
--- a/drivers/net/wireless/wl12xx/debugfs.c
+++ b/drivers/net/wireless/wl12xx/debugfs.c
@@ -625,6 +625,64 @@ static const struct file_operations dtim_interval_ops = {
.llseek = default_llseek,
};
+
+
+static ssize_t suspend_dtim_interval_read(struct file *file,
+ char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct wl1271 *wl = file->private_data;
+ u8 value;
+
+ if (wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_DTIM ||
+ wl->conf.conn.suspend_wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
+ value = wl->conf.conn.suspend_listen_interval;
+ else
+ value = 0;
+
+ return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
+}
+
+static ssize_t suspend_dtim_interval_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct wl1271 *wl = file->private_data;
+ unsigned long value;
+ int ret;
+
+ ret = kstrtoul_from_user(user_buf, count, 10, &value);
+ if (ret < 0) {
+ wl1271_warning("illegal value for suspend_dtim_interval");
+ return -EINVAL;
+ }
+
+ if (value < 1 || value > 10) {
+ wl1271_warning("suspend_dtim value is not in valid range");
+ return -ERANGE;
+ }
+
+ mutex_lock(&wl->mutex);
+
+ wl->conf.conn.suspend_listen_interval = value;
+ /* for some reason there are different event types for 1 and >1 */
+ if (value == 1)
+ wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
+ else
+ wl->conf.conn.suspend_wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
+
+ mutex_unlock(&wl->mutex);
+ return count;
+}
+
+
+static const struct file_operations suspend_dtim_interval_ops = {
+ .read = suspend_dtim_interval_read,
+ .write = suspend_dtim_interval_write,
+ .open = wl1271_open_file_generic,
+ .llseek = default_llseek,
+};
+
static ssize_t beacon_interval_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
@@ -949,6 +1007,7 @@ static int wl1271_debugfs_add_files(struct wl1271 *wl,
DEBUGFS_ADD(driver_state, rootdir);
DEBUGFS_ADD(vifs_state, rootdir);
DEBUGFS_ADD(dtim_interval, rootdir);
+ DEBUGFS_ADD(suspend_dtim_interval, rootdir);
DEBUGFS_ADD(beacon_interval, rootdir);
DEBUGFS_ADD(beacon_filtering, rootdir);
DEBUGFS_ADD(dynamic_ps_timeout, rootdir);
--
1.7.6.401.g6a319
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