drivers/staging/vt6656/mac.c

   1 /*
   2  * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  *
  16  * File: mac.c
  17  *
  18  * Purpose:  MAC routines
  19  *
  20  * Author: Tevin Chen
  21  *
  22  * Date: May 21, 1996
  23  *
  24  * Functions:
  25  *
  26  * Revision History:
  27  */
  28
  29 #include <linux/etherdevice.h>
  30
  31 #include "desc.h"
  32 #include "mac.h"
  33 #include "usbpipe.h"
  34
  35 /*
  36  * Description:
  37  *      Write MAC Multicast Address Mask
  38  *
  39  * Parameters:
  40  *  In:
  41  *      mc_filter (mac filter)
  42  *  Out:
  43  *      none
  44  *
  45  * Return Value: none
  46  *
  47  */
  48 void vnt_mac_set_filter(struct vnt_private *priv, u64 mc_filter)
  49 {
  50         __le64 le_mc = cpu_to_le64(mc_filter);
  51
  52         vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_MAR0,
  53                 MESSAGE_REQUEST_MACREG, sizeof(le_mc), (u8 *)&le_mc);
  54 }
  55
  56 /*
  57  * Description:
  58  *      Shut Down MAC
  59  *
  60  * Parameters:
  61  *  In:
  62  *  Out:
  63  *      none
  64  *
  65  *
  66  */
  67 void vnt_mac_shutdown(struct vnt_private *priv)
  68 {
  69         vnt_control_out(priv, MESSAGE_TYPE_MACSHUTDOWN, 0, 0, 0, NULL);
  70 }
  71
  72 void vnt_mac_set_bb_type(struct vnt_private *priv, u8 type)
  73 {
  74         u8 data[2];
  75
  76         data[0] = type;
  77         data[1] = EnCFG_BBType_MASK;
  78
  79         vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, MAC_REG_ENCFG0,
  80                 MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
  81 }
  82
  83 /*
  84  * Description:
  85  *      Disable the Key Entry by MISCFIFO
  86  *
  87  * Parameters:
  88  *  In:
  89  *      dwIoBase        - Base Address for MAC
  90  *
  91  *  Out:
  92  *      none
  93  *
  94  * Return Value: none
  95  *
  96  */
  97 void vnt_mac_disable_keyentry(struct vnt_private *priv, u8 entry_idx)
  98 {
  99         vnt_control_out(priv, MESSAGE_TYPE_CLRKEYENTRY, 0, 0,
 100                 sizeof(entry_idx), &entry_idx);
 101 }
 102
 103 /*
 104  * Description:
 105  *      Set the Key by MISCFIFO
 106  *
 107  * Parameters:
 108  *  In:
 109  *      dwIoBase        - Base Address for MAC
 110  *
 111  *  Out:
 112  *      none
 113  *
 114  * Return Value: none
 115  *
 116  */
 117 void vnt_mac_set_keyentry(struct vnt_private *priv, u16 key_ctl, u32 entry_idx,
 118         u32 key_idx, u8 *addr, u8 *key)
 119 {
 120         struct vnt_mac_set_key set_key;
 121         u16 offset;
 122
 123         offset = MISCFIFO_KEYETRY0;
 124         offset += (entry_idx * MISCFIFO_KEYENTRYSIZE);
 125
 126         set_key.u.write.key_ctl = cpu_to_le16(key_ctl);
 127         ether_addr_copy(set_key.u.write.addr, addr);
 128
 129         /* swap over swap[0] and swap[1] to get correct write order */
 130         swap(set_key.u.swap[0], set_key.u.swap[1]);
 131
 132         memcpy(set_key.key, key, WLAN_KEY_LEN_CCMP);
 133
 134         dev_dbg(&priv->usb->dev, "offset %d key ctl %d set key %24ph\n",
 135                                 offset, key_ctl, (u8 *)&set_key);
 136
 137         vnt_control_out(priv, MESSAGE_TYPE_SETKEY, offset,
 138                 (u16)key_idx, sizeof(struct vnt_mac_set_key), (u8 *)&set_key);
 139 }
 140
 141 void vnt_mac_reg_bits_off(struct vnt_private *priv, u8 reg_ofs, u8 bits)
 142 {
 143         u8 data[2];
 144
 145         data[0] = 0;
 146         data[1] = bits;
 147
 148         vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK,
 149                 reg_ofs, MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
 150 }
 151
 152 void vnt_mac_reg_bits_on(struct vnt_private *priv, u8 reg_ofs, u8 bits)
 153 {
 154         u8 data[2];
 155
 156         data[0] = bits;
 157         data[1] = bits;
 158
 159         vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK,
 160                 reg_ofs, MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
 161 }
 162
 163 void vnt_mac_write_word(struct vnt_private *priv, u8 reg_ofs, u16 word)
 164 {
 165         u8 data[2];
 166
 167         data[0] = (u8)(word & 0xff);
 168         data[1] = (u8)(word >> 8);
 169
 170         vnt_control_out(priv, MESSAGE_TYPE_WRITE,
 171                 reg_ofs, MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
 172 }
 173
 174 void vnt_mac_set_bssid_addr(struct vnt_private *priv, u8 *addr)
 175 {
 176         vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_BSSID0,
 177                 MESSAGE_REQUEST_MACREG, ETH_ALEN, addr);
 178 }
 179
 180 void vnt_mac_enable_protect_mode(struct vnt_private *priv)
 181 {
 182         u8 data[2];
 183
 184         data[0] = EnCFG_ProtectMd;
 185         data[1] = EnCFG_ProtectMd;
 186
 187         vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK,
 188                 MAC_REG_ENCFG0, MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
 189 }
 190
 191 void vnt_mac_disable_protect_mode(struct vnt_private *priv)
 192 {
 193         u8 data[2];
 194
 195         data[0] = 0;
 196         data[1] = EnCFG_ProtectMd;
 197
 198         vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK,
 199                 MAC_REG_ENCFG0, MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
 200 }
 201
 202 void vnt_mac_enable_barker_preamble_mode(struct vnt_private *priv)
 203 {
 204         u8 data[2];
 205
 206         data[0] = EnCFG_BarkerPream;
 207         data[1] = EnCFG_BarkerPream;
 208
 209         vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK,
 210                 MAC_REG_ENCFG2, MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
 211 }
 212
 213 void vnt_mac_disable_barker_preamble_mode(struct vnt_private *priv)
 214 {
 215         u8 data[2];
 216
 217         data[0] = 0;
 218         data[1] = EnCFG_BarkerPream;
 219
 220         vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK,
 221                 MAC_REG_ENCFG2, MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
 222 }
 223
 224 void vnt_mac_set_beacon_interval(struct vnt_private *priv, u16 interval)
 225 {
 226         u8 data[2];
 227
 228         data[0] = (u8)(interval & 0xff);
 229         data[1] = (u8)(interval >> 8);
 230
 231         vnt_control_out(priv, MESSAGE_TYPE_WRITE,
 232                 MAC_REG_BI, MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
 233 }
 234
 235 void vnt_mac_set_led(struct vnt_private *priv, u8 state, u8 led)
 236 {
 237         u8 data[2];
 238
 239         data[0] = led;
 240         data[1] = state;
 241
 242         vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, MAC_REG_PAPEDELAY,
 243                         MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
 244 }