When configuring ACX_WAKE_UP_CONDITIONS (before entering psm), we
tell the firmware to wake up once in N DTIMs (or beacons).
Allow control of this value via debugfs (for debugging purposes).
Signed-off-by: Eliad Peller <eliad@xxxxxxxxxx>
---
drivers/net/wireless/wl12xx/debugfs.c | 60 +++++++++++++++++++++++++++++++++
1 files changed, 60 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/wl12xx/debugfs.c b/drivers/net/wireless/wl12xx/debugfs.c
index 36e7ec1..1edc89f 100644
--- a/drivers/net/wireless/wl12xx/debugfs.c
+++ b/drivers/net/wireless/wl12xx/debugfs.c
@@ -293,6 +293,65 @@ static const struct file_operations gpio_power_ops = {
.llseek = default_llseek,
};
+static ssize_t dtim_interval_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct wl1271 *wl = file->private_data;
+
+ return wl1271_format_buffer(user_buf, count, ppos, "%d\n",
+ wl->conf.conn.listen_interval);
+}
+
+static ssize_t dtim_interval_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct wl1271 *wl = file->private_data;
+ char buf[10];
+ size_t len;
+ unsigned long value;
+ int ret;
+
+ len = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, len))
+ return -EFAULT;
+ buf[len] = '\0';
+
+ ret = strict_strtoul(buf, 0, &value);
+ if (ret < 0) {
+ wl1271_warning("illegal value for dtim_interval");
+ return -EINVAL;
+ }
+
+ if (value < 1 || value > 10) {
+ wl1271_warning("dtim value is not in valid range");
+ return -ERANGE;
+ }
+
+ mutex_lock(&wl->mutex);
+
+ wl->conf.conn.listen_interval = value;
+ /* for some reason there are different event types for 1 and >1 */
+ if (value == 1)
+ wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_DTIM;
+ else
+ wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_DTIM;
+
+ /*
+ * we don't reconfigure ACX_WAKE_UP_CONDITIONS now, so it will only
+ * take effect on the next time we enter psm.
+ */
+ mutex_unlock(&wl->mutex);
+ return count;
+}
+
+static const struct file_operations dtim_interval_ops = {
+ .read = dtim_interval_read,
+ .write = dtim_interval_write,
+ .open = wl1271_open_file_generic,
+ .llseek = default_llseek,
+};
+
static int wl1271_debugfs_add_files(struct wl1271 *wl,
struct dentry *rootdir)
{
@@ -401,6 +460,7 @@ static int wl1271_debugfs_add_files(struct wl1271 *wl,
DEBUGFS_ADD(excessive_retries, rootdir);
DEBUGFS_ADD(gpio_power, rootdir);
+ DEBUGFS_ADD(dtim_interval, rootdir);
entry = debugfs_create_x32("debug_level", 0600, rootdir,
&wl12xx_debug_level);
--
1.7.0.4
--
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