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1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
4  * All rights reserved.
5  *
6  * File: mac.c
7  *
8  * Purpose:  MAC routines
9  *
10  * Author: Tevin Chen
11  *
12  * Date: May 21, 1996
13  *
14  * Functions:
15  *
16  * Revision History:
17  */
18 
19 #include <linux/etherdevice.h>
20 
21 #include "desc.h"
22 #include "mac.h"
23 #include "usbpipe.h"
24 
vnt_mac_set_filter(struct vnt_private * priv,u64 mc_filter)25 int vnt_mac_set_filter(struct vnt_private *priv, u64 mc_filter)
26 {
27 	__le64 le_mc = cpu_to_le64(mc_filter);
28 
29 	return vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_MAR0,
30 			       MESSAGE_REQUEST_MACREG, sizeof(le_mc),
31 			       (u8 *)&le_mc);
32 }
33 
vnt_mac_shutdown(struct vnt_private * priv)34 int vnt_mac_shutdown(struct vnt_private *priv)
35 {
36 	return vnt_control_out(priv, MESSAGE_TYPE_MACSHUTDOWN, 0, 0, 0, NULL);
37 }
38 
vnt_mac_set_bb_type(struct vnt_private * priv,u8 type)39 int vnt_mac_set_bb_type(struct vnt_private *priv, u8 type)
40 {
41 	u8 data[2];
42 
43 	data[0] = type;
44 	data[1] = EnCFG_BBType_MASK;
45 
46 	return vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, MAC_REG_ENCFG0,
47 			       MESSAGE_REQUEST_MACREG,	ARRAY_SIZE(data),
48 			       data);
49 }
50 
vnt_mac_disable_keyentry(struct vnt_private * priv,u8 entry_idx)51 int vnt_mac_disable_keyentry(struct vnt_private *priv, u8 entry_idx)
52 {
53 	return vnt_control_out(priv, MESSAGE_TYPE_CLRKEYENTRY, 0, 0,
54 			       sizeof(entry_idx), &entry_idx);
55 }
56 
vnt_mac_set_keyentry(struct vnt_private * priv,u16 key_ctl,u32 entry_idx,u32 key_idx,u8 * addr,u8 * key)57 int vnt_mac_set_keyentry(struct vnt_private *priv, u16 key_ctl, u32 entry_idx,
58 			 u32 key_idx, u8 *addr, u8 *key)
59 {
60 	struct vnt_mac_set_key set_key;
61 	u16 offset;
62 
63 	offset = MISCFIFO_KEYETRY0;
64 	offset += entry_idx * MISCFIFO_KEYENTRYSIZE;
65 
66 	set_key.u.write.key_ctl = cpu_to_le16(key_ctl);
67 	ether_addr_copy(set_key.u.write.addr, addr);
68 
69 	/* swap over swap[0] and swap[1] to get correct write order */
70 	swap(set_key.u.swap[0], set_key.u.swap[1]);
71 
72 	memcpy(set_key.key, key, WLAN_KEY_LEN_CCMP);
73 
74 	dev_dbg(&priv->usb->dev, "offset %d key ctl %d set key %24ph\n",
75 		offset, key_ctl, (u8 *)&set_key);
76 
77 	return vnt_control_out(priv, MESSAGE_TYPE_SETKEY, offset,
78 			       (u16)key_idx, sizeof(struct vnt_mac_set_key),
79 			       (u8 *)&set_key);
80 }
81 
vnt_mac_reg_bits_off(struct vnt_private * priv,u8 reg_ofs,u8 bits)82 int vnt_mac_reg_bits_off(struct vnt_private *priv, u8 reg_ofs, u8 bits)
83 {
84 	u8 data[2];
85 
86 	data[0] = 0;
87 	data[1] = bits;
88 
89 	return vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, reg_ofs,
90 			       MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
91 }
92 
vnt_mac_reg_bits_on(struct vnt_private * priv,u8 reg_ofs,u8 bits)93 int vnt_mac_reg_bits_on(struct vnt_private *priv, u8 reg_ofs, u8 bits)
94 {
95 	u8 data[2];
96 
97 	data[0] = bits;
98 	data[1] = bits;
99 
100 	return vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, reg_ofs,
101 			       MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
102 }
103 
vnt_mac_write_word(struct vnt_private * priv,u8 reg_ofs,u16 word)104 int vnt_mac_write_word(struct vnt_private *priv, u8 reg_ofs, u16 word)
105 {
106 	u8 data[2];
107 
108 	data[0] = (u8)(word & 0xff);
109 	data[1] = (u8)(word >> 8);
110 
111 	return vnt_control_out(priv, MESSAGE_TYPE_WRITE, reg_ofs,
112 			       MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
113 }
114 
vnt_mac_set_bssid_addr(struct vnt_private * priv,u8 * addr)115 int vnt_mac_set_bssid_addr(struct vnt_private *priv, u8 *addr)
116 {
117 	return vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_BSSID0,
118 			       MESSAGE_REQUEST_MACREG, ETH_ALEN, addr);
119 }
120 
vnt_mac_enable_protect_mode(struct vnt_private * priv)121 int vnt_mac_enable_protect_mode(struct vnt_private *priv)
122 {
123 	u8 data[2];
124 
125 	data[0] = EnCFG_ProtectMd;
126 	data[1] = EnCFG_ProtectMd;
127 
128 	return vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, MAC_REG_ENCFG0,
129 			       MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
130 }
131 
vnt_mac_disable_protect_mode(struct vnt_private * priv)132 int vnt_mac_disable_protect_mode(struct vnt_private *priv)
133 {
134 	u8 data[2];
135 
136 	data[0] = 0;
137 	data[1] = EnCFG_ProtectMd;
138 
139 	return vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, MAC_REG_ENCFG0,
140 			       MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
141 }
142 
vnt_mac_enable_barker_preamble_mode(struct vnt_private * priv)143 int vnt_mac_enable_barker_preamble_mode(struct vnt_private *priv)
144 {
145 	u8 data[2];
146 
147 	data[0] = EnCFG_BarkerPream;
148 	data[1] = EnCFG_BarkerPream;
149 
150 	return vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, MAC_REG_ENCFG2,
151 			       MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
152 }
153 
vnt_mac_disable_barker_preamble_mode(struct vnt_private * priv)154 int vnt_mac_disable_barker_preamble_mode(struct vnt_private *priv)
155 {
156 	u8 data[2];
157 
158 	data[0] = 0;
159 	data[1] = EnCFG_BarkerPream;
160 
161 	return vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, MAC_REG_ENCFG2,
162 			       MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
163 }
164 
vnt_mac_set_beacon_interval(struct vnt_private * priv,u16 interval)165 int vnt_mac_set_beacon_interval(struct vnt_private *priv, u16 interval)
166 {
167 	u8 data[2];
168 
169 	data[0] = (u8)(interval & 0xff);
170 	data[1] = (u8)(interval >> 8);
171 
172 	return vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_BI,
173 			       MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
174 }
175 
vnt_mac_set_led(struct vnt_private * priv,u8 state,u8 led)176 int vnt_mac_set_led(struct vnt_private *priv, u8 state, u8 led)
177 {
178 	u8 data[2];
179 
180 	data[0] = led;
181 	data[1] = state;
182 
183 	return vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, MAC_REG_PAPEDELAY,
184 			       MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
185 }
186