xref: /linux/drivers/net/wireless/marvell/libertas/ethtool.c (revision fbc872c38c8fed31948c85683b5326ee5ab9fccc)
1 #include <linux/hardirq.h>
2 #include <linux/netdevice.h>
3 #include <linux/ethtool.h>
4 #include <linux/delay.h>
5 
6 #include "decl.h"
7 #include "cmd.h"
8 #include "mesh.h"
9 
10 
11 static void lbs_ethtool_get_drvinfo(struct net_device *dev,
12 					 struct ethtool_drvinfo *info)
13 {
14 	struct lbs_private *priv = dev->ml_priv;
15 
16 	snprintf(info->fw_version, sizeof(info->fw_version),
17 		"%u.%u.%u.p%u",
18 		priv->fwrelease >> 24 & 0xff,
19 		priv->fwrelease >> 16 & 0xff,
20 		priv->fwrelease >>  8 & 0xff,
21 		priv->fwrelease       & 0xff);
22 	strlcpy(info->driver, "libertas", sizeof(info->driver));
23 	strlcpy(info->version, lbs_driver_version, sizeof(info->version));
24 }
25 
26 /*
27  * All 8388 parts have 16KiB EEPROM size at the time of writing.
28  * In case that changes this needs fixing.
29  */
30 #define LBS_EEPROM_LEN 16384
31 
32 static int lbs_ethtool_get_eeprom_len(struct net_device *dev)
33 {
34 	return LBS_EEPROM_LEN;
35 }
36 
37 static int lbs_ethtool_get_eeprom(struct net_device *dev,
38                                   struct ethtool_eeprom *eeprom, u8 * bytes)
39 {
40 	struct lbs_private *priv = dev->ml_priv;
41 	struct cmd_ds_802_11_eeprom_access cmd;
42 	int ret;
43 
44 	lbs_deb_enter(LBS_DEB_ETHTOOL);
45 
46 	if (eeprom->offset + eeprom->len > LBS_EEPROM_LEN ||
47 	    eeprom->len > LBS_EEPROM_READ_LEN) {
48 		ret = -EINVAL;
49 		goto out;
50 	}
51 
52 	cmd.hdr.size = cpu_to_le16(sizeof(struct cmd_ds_802_11_eeprom_access) -
53 		LBS_EEPROM_READ_LEN + eeprom->len);
54 	cmd.action = cpu_to_le16(CMD_ACT_GET);
55 	cmd.offset = cpu_to_le16(eeprom->offset);
56 	cmd.len    = cpu_to_le16(eeprom->len);
57 	ret = lbs_cmd_with_response(priv, CMD_802_11_EEPROM_ACCESS, &cmd);
58 	if (!ret)
59 		memcpy(bytes, cmd.value, eeprom->len);
60 
61 out:
62 	lbs_deb_leave_args(LBS_DEB_ETHTOOL, "ret %d", ret);
63         return ret;
64 }
65 
66 static void lbs_ethtool_get_wol(struct net_device *dev,
67 				struct ethtool_wolinfo *wol)
68 {
69 	struct lbs_private *priv = dev->ml_priv;
70 
71 	wol->supported = WAKE_UCAST|WAKE_MCAST|WAKE_BCAST|WAKE_PHY;
72 
73 	if (priv->wol_criteria == EHS_REMOVE_WAKEUP)
74 		return;
75 
76 	if (priv->wol_criteria & EHS_WAKE_ON_UNICAST_DATA)
77 		wol->wolopts |= WAKE_UCAST;
78 	if (priv->wol_criteria & EHS_WAKE_ON_MULTICAST_DATA)
79 		wol->wolopts |= WAKE_MCAST;
80 	if (priv->wol_criteria & EHS_WAKE_ON_BROADCAST_DATA)
81 		wol->wolopts |= WAKE_BCAST;
82 	if (priv->wol_criteria & EHS_WAKE_ON_MAC_EVENT)
83 		wol->wolopts |= WAKE_PHY;
84 }
85 
86 static int lbs_ethtool_set_wol(struct net_device *dev,
87 			       struct ethtool_wolinfo *wol)
88 {
89 	struct lbs_private *priv = dev->ml_priv;
90 
91 	if (wol->wolopts & ~(WAKE_UCAST|WAKE_MCAST|WAKE_BCAST|WAKE_PHY))
92 		return -EOPNOTSUPP;
93 
94 	priv->wol_criteria = 0;
95 	if (wol->wolopts & WAKE_UCAST)
96 		priv->wol_criteria |= EHS_WAKE_ON_UNICAST_DATA;
97 	if (wol->wolopts & WAKE_MCAST)
98 		priv->wol_criteria |= EHS_WAKE_ON_MULTICAST_DATA;
99 	if (wol->wolopts & WAKE_BCAST)
100 		priv->wol_criteria |= EHS_WAKE_ON_BROADCAST_DATA;
101 	if (wol->wolopts & WAKE_PHY)
102 		priv->wol_criteria |= EHS_WAKE_ON_MAC_EVENT;
103 	if (wol->wolopts == 0)
104 		priv->wol_criteria |= EHS_REMOVE_WAKEUP;
105 	return 0;
106 }
107 
108 const struct ethtool_ops lbs_ethtool_ops = {
109 	.get_drvinfo = lbs_ethtool_get_drvinfo,
110 	.get_eeprom =  lbs_ethtool_get_eeprom,
111 	.get_eeprom_len = lbs_ethtool_get_eeprom_len,
112 #ifdef CONFIG_LIBERTAS_MESH
113 	.get_sset_count = lbs_mesh_ethtool_get_sset_count,
114 	.get_ethtool_stats = lbs_mesh_ethtool_get_stats,
115 	.get_strings = lbs_mesh_ethtool_get_strings,
116 #endif
117 	.get_wol = lbs_ethtool_get_wol,
118 	.set_wol = lbs_ethtool_set_wol,
119 };
120 
121