mwifiex: add "ethtool wol" command support

Host sleep wakeup condition is configured using this command.

Supports Wake-on: pumb

For examples:

wake-on any unicast packets:
ethtool -s mlan0 wol u

wake-on multicast/broadcast packet:
ethtool -s mlan0 wol mb

wake-on unicast packets and MAC events:
ethtool -s mlan0 wol pu

wake-on unicast/multicast/broadcast packets and MAC events:
ethtool -s mlan0 wol pmbu

disable all wake-on options:
ethtool -s mlan0 wol d

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 70 insertions, 0 deletions

diff --git a/drivers/net/wireless/mwifiex/ethtool.c b/drivers/net/wireless/mwifiex/ethtool.c
new file mode 100644
index 000000000000..bfb39908b2c6
--- /dev/null
+++ b/drivers/net/wireless/mwifiex/ethtool.c
@@ -0,0 +1,70 @@
+/*
+ * Marvell Wireless LAN device driver: ethtool
+ *
+ * Copyright (C) 2013, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License").  You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available by writing to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
+ * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+#include "main.h"
+
+static void mwifiex_ethtool_get_wol(struct net_device *dev,
+				    struct ethtool_wolinfo *wol)
+{
+	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
+	u32 conditions = le32_to_cpu(priv->adapter->hs_cfg.conditions);
+
+	wol->supported = WAKE_UCAST|WAKE_MCAST|WAKE_BCAST|WAKE_PHY;
+
+	if (conditions == HS_CFG_COND_DEF)
+		return;
+
+	if (conditions & HS_CFG_COND_UNICAST_DATA)
+		wol->wolopts |= WAKE_UCAST;
+	if (conditions & HS_CFG_COND_MULTICAST_DATA)
+		wol->wolopts |= WAKE_MCAST;
+	if (conditions & HS_CFG_COND_BROADCAST_DATA)
+		wol->wolopts |= WAKE_BCAST;
+	if (conditions & HS_CFG_COND_MAC_EVENT)
+		wol->wolopts |= WAKE_PHY;
+}
+
+static int mwifiex_ethtool_set_wol(struct net_device *dev,
+				   struct ethtool_wolinfo *wol)
+{
+	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
+	u32 conditions = 0;
+
+	if (wol->wolopts & ~(WAKE_UCAST|WAKE_MCAST|WAKE_BCAST|WAKE_PHY))
+		return -EOPNOTSUPP;
+
+	if (wol->wolopts & WAKE_UCAST)
+		conditions |= HS_CFG_COND_UNICAST_DATA;
+	if (wol->wolopts & WAKE_MCAST)
+		conditions |= HS_CFG_COND_MULTICAST_DATA;
+	if (wol->wolopts & WAKE_BCAST)
+		conditions |= HS_CFG_COND_BROADCAST_DATA;
+	if (wol->wolopts & WAKE_PHY)
+		conditions |= HS_CFG_COND_MAC_EVENT;
+	if (wol->wolopts == 0)
+		conditions |= HS_CFG_COND_DEF;
+	priv->adapter->hs_cfg.conditions = cpu_to_le32(conditions);
+
+	return 0;
+}
+
+const struct ethtool_ops mwifiex_ethtool_ops = {
+	.get_wol = mwifiex_ethtool_get_wol,
+	.set_wol = mwifiex_ethtool_set_wol,
+};