wl12xx: add debugfs entries for dtim_interval and beacon_interval (1fe9e246) · Commits · 戴 / test

drivers/net/wireless/wl12xx/debugfs.c

+132 −0

Original line number	Diff line number	Diff line
		@@ -291,6 +291,136 @@ 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;
		u8 value;

		if (wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_DTIM \|\|
		wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_DTIM)
		value = wl->conf.conn.listen_interval;
		else
		value = 0;

		return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
		}

		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 ssize_t beacon_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.wake_up_event == CONF_WAKE_UP_EVENT_BEACON \|\|
		wl->conf.conn.wake_up_event == CONF_WAKE_UP_EVENT_N_BEACONS)
		value = wl->conf.conn.listen_interval;
		else
		value = 0;

		return wl1271_format_buffer(user_buf, count, ppos, "%d\n", value);
		}

		static ssize_t beacon_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 beacon_interval");
		return -EINVAL;
		}

		if (value < 1 \|\| value > 255) {
		wl1271_warning("beacon interval 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_BEACON;
		else
		wl->conf.conn.wake_up_event = CONF_WAKE_UP_EVENT_N_BEACONS;

		/*
		* 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 beacon_interval_ops = {
		.read = beacon_interval_read,
		.write = beacon_interval_write,
		.open = wl1271_open_file_generic,
		.llseek = default_llseek,
		};

		static int wl1271_debugfs_add_files(struct wl1271 *wl,
		struct dentry *rootdir)
		{
		@@ -399,6 +529,8 @@ static int wl1271_debugfs_add_files(struct wl1271 *wl,
		DEBUGFS_ADD(excessive_retries, rootdir);

		DEBUGFS_ADD(gpio_power, rootdir);
		DEBUGFS_ADD(dtim_interval, rootdir);
		DEBUGFS_ADD(beacon_interval, rootdir);

		return 0;

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