1 /*
2  * Marvell Wireless LAN device driver: ethtool
3  *
4  * Copyright (C) 2013-2014, Marvell International Ltd.
5  *
6  * This software file (the "File") is distributed by Marvell International
7  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8  * (the "License").  You may use, redistribute and/or modify this File in
9  * accordance with the terms and conditions of the License, a copy of which
10  * is available by writing to the Free Software Foundation, Inc.,
11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
13  *
14  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
17  * this warranty disclaimer.
18  */
19 
20 #include "main.h"
21 
mwifiex_ethtool_get_wol(struct net_device * dev,struct ethtool_wolinfo * wol)22 static void mwifiex_ethtool_get_wol(struct net_device *dev,
23 				    struct ethtool_wolinfo *wol)
24 {
25 	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
26 	u32 conditions = le32_to_cpu(priv->adapter->hs_cfg.conditions);
27 
28 	wol->supported = WAKE_UCAST|WAKE_MCAST|WAKE_BCAST|WAKE_PHY;
29 
30 	if (conditions == HS_CFG_COND_DEF)
31 		return;
32 
33 	if (conditions & HS_CFG_COND_UNICAST_DATA)
34 		wol->wolopts |= WAKE_UCAST;
35 	if (conditions & HS_CFG_COND_MULTICAST_DATA)
36 		wol->wolopts |= WAKE_MCAST;
37 	if (conditions & HS_CFG_COND_BROADCAST_DATA)
38 		wol->wolopts |= WAKE_BCAST;
39 	if (conditions & HS_CFG_COND_MAC_EVENT)
40 		wol->wolopts |= WAKE_PHY;
41 }
42 
mwifiex_ethtool_set_wol(struct net_device * dev,struct ethtool_wolinfo * wol)43 static int mwifiex_ethtool_set_wol(struct net_device *dev,
44 				   struct ethtool_wolinfo *wol)
45 {
46 	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
47 	u32 conditions = 0;
48 
49 	if (wol->wolopts & ~(WAKE_UCAST|WAKE_MCAST|WAKE_BCAST|WAKE_PHY))
50 		return -EOPNOTSUPP;
51 
52 	if (wol->wolopts & WAKE_UCAST)
53 		conditions |= HS_CFG_COND_UNICAST_DATA;
54 	if (wol->wolopts & WAKE_MCAST)
55 		conditions |= HS_CFG_COND_MULTICAST_DATA;
56 	if (wol->wolopts & WAKE_BCAST)
57 		conditions |= HS_CFG_COND_BROADCAST_DATA;
58 	if (wol->wolopts & WAKE_PHY)
59 		conditions |= HS_CFG_COND_MAC_EVENT;
60 	if (wol->wolopts == 0)
61 		conditions |= HS_CFG_COND_DEF;
62 	priv->adapter->hs_cfg.conditions = cpu_to_le32(conditions);
63 
64 	return 0;
65 }
66 
67 static int
mwifiex_get_dump_flag(struct net_device * dev,struct ethtool_dump * dump)68 mwifiex_get_dump_flag(struct net_device *dev, struct ethtool_dump *dump)
69 {
70 	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
71 	struct mwifiex_adapter *adapter = priv->adapter;
72 	struct memory_type_mapping *entry;
73 
74 	if (!adapter->if_ops.fw_dump)
75 		return -ENOTSUPP;
76 
77 	dump->flag = adapter->curr_mem_idx;
78 	dump->version = 1;
79 	if (adapter->curr_mem_idx == MWIFIEX_DRV_INFO_IDX) {
80 		dump->len = adapter->drv_info_size;
81 	} else if (adapter->curr_mem_idx != MWIFIEX_FW_DUMP_IDX) {
82 		entry = &adapter->mem_type_mapping_tbl[adapter->curr_mem_idx];
83 		dump->len = entry->mem_size;
84 	} else {
85 		dump->len = 0;
86 	}
87 
88 	return 0;
89 }
90 
91 static int
mwifiex_get_dump_data(struct net_device * dev,struct ethtool_dump * dump,void * buffer)92 mwifiex_get_dump_data(struct net_device *dev, struct ethtool_dump *dump,
93 		      void *buffer)
94 {
95 	u8 *p = buffer;
96 	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
97 	struct mwifiex_adapter *adapter = priv->adapter;
98 	struct memory_type_mapping *entry;
99 
100 	if (!adapter->if_ops.fw_dump)
101 		return -ENOTSUPP;
102 
103 	if (adapter->curr_mem_idx == MWIFIEX_DRV_INFO_IDX) {
104 		if (!adapter->drv_info_dump)
105 			return -EFAULT;
106 		memcpy(p, adapter->drv_info_dump, adapter->drv_info_size);
107 		return 0;
108 	}
109 
110 	if (adapter->curr_mem_idx == MWIFIEX_FW_DUMP_IDX) {
111 		dev_err(adapter->dev, "firmware dump in progress!!\n");
112 		return -EBUSY;
113 	}
114 
115 	entry = &adapter->mem_type_mapping_tbl[adapter->curr_mem_idx];
116 
117 	if (!entry->mem_ptr)
118 		return -EFAULT;
119 
120 	memcpy(p, entry->mem_ptr, entry->mem_size);
121 
122 	entry->mem_size = 0;
123 	vfree(entry->mem_ptr);
124 	entry->mem_ptr = NULL;
125 
126 	return 0;
127 }
128 
mwifiex_set_dump(struct net_device * dev,struct ethtool_dump * val)129 static int mwifiex_set_dump(struct net_device *dev, struct ethtool_dump *val)
130 {
131 	struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
132 	struct mwifiex_adapter *adapter = priv->adapter;
133 
134 	if (!adapter->if_ops.fw_dump)
135 		return -ENOTSUPP;
136 
137 	if (val->flag == MWIFIEX_DRV_INFO_IDX) {
138 		adapter->curr_mem_idx = MWIFIEX_DRV_INFO_IDX;
139 		return 0;
140 	}
141 
142 	if (adapter->curr_mem_idx == MWIFIEX_FW_DUMP_IDX) {
143 		dev_err(adapter->dev, "firmware dump in progress!!\n");
144 		return -EBUSY;
145 	}
146 
147 	if (val->flag == MWIFIEX_FW_DUMP_IDX) {
148 		adapter->curr_mem_idx = val->flag;
149 		adapter->if_ops.fw_dump(adapter);
150 		return 0;
151 	}
152 
153 	if (val->flag < 0 || val->flag >= adapter->num_mem_types)
154 		return -EINVAL;
155 
156 	adapter->curr_mem_idx = val->flag;
157 
158 	return 0;
159 }
160 
161 const struct ethtool_ops mwifiex_ethtool_ops = {
162 	.get_wol = mwifiex_ethtool_get_wol,
163 	.set_wol = mwifiex_ethtool_set_wol,
164 	.get_dump_flag = mwifiex_get_dump_flag,
165 	.get_dump_data = mwifiex_get_dump_data,
166 	.set_dump = mwifiex_set_dump,
167 };
168