drivers/staging/vt6656/mac.c

   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
  25 /*
  26  * Description:
  27  *      Write MAC Multicast Address Mask
  28  *
  29  * Parameters:
  30  *  In:
  31  *      mc_filter (mac filter)
  32  *  Out:
  33  *      none
  34  *
  35  * Return Value: none
  36  *
  37  */
  38 void vnt_mac_set_filter(struct vnt_private *priv, u64 mc_filter)
  39 {
  40         __le64 le_mc = cpu_to_le64(mc_filter);
  41
  42         vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_MAR0,
  43                         MESSAGE_REQUEST_MACREG, sizeof(le_mc), (u8 *)&le_mc);
  44 }
  45
  46 /*
  47  * Description:
  48  *      Shut Down MAC
  49  *
  50  * Parameters:
  51  *  In:
  52  *  Out:
  53  *      none
  54  *
  55  *
  56  */
  57 void vnt_mac_shutdown(struct vnt_private *priv)
  58 {
  59         vnt_control_out(priv, MESSAGE_TYPE_MACSHUTDOWN, 0, 0, 0, NULL);
  60 }
  61
  62 void vnt_mac_set_bb_type(struct vnt_private *priv, u8 type)
  63 {
  64         u8 data[2];
  65
  66         data[0] = type;
  67         data[1] = EnCFG_BBType_MASK;
  68
  69         vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, MAC_REG_ENCFG0,
  70                         MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
  71 }
  72
  73 /*
  74  * Description:
  75  *      Disable the Key Entry by MISCFIFO
  76  *
  77  * Parameters:
  78  *  In:
  79  *      dwIoBase        - Base Address for MAC
  80  *
  81  *  Out:
  82  *      none
  83  *
  84  * Return Value: none
  85  *
  86  */
  87 void vnt_mac_disable_keyentry(struct vnt_private *priv, u8 entry_idx)
  88 {
  89         vnt_control_out(priv, MESSAGE_TYPE_CLRKEYENTRY, 0, 0,
  90                         sizeof(entry_idx), &entry_idx);
  91 }
  92
  93 /*
  94  * Description:
  95  *      Set the Key by MISCFIFO
  96  *
  97  * Parameters:
  98  *  In:
  99  *      dwIoBase        - Base Address for MAC
 100  *
 101  *  Out:
 102  *      none
 103  *
 104  * Return Value: none
 105  *
 106  */
 107 void vnt_mac_set_keyentry(struct vnt_private *priv, u16 key_ctl, u32 entry_idx,
 108                           u32 key_idx, u8 *addr, u8 *key)
 109 {
 110         struct vnt_mac_set_key set_key;
 111         u16 offset;
 112
 113         offset = MISCFIFO_KEYETRY0;
 114         offset += entry_idx * MISCFIFO_KEYENTRYSIZE;
 115
 116         set_key.u.write.key_ctl = cpu_to_le16(key_ctl);
 117         ether_addr_copy(set_key.u.write.addr, addr);
 118
 119         /* swap over swap[0] and swap[1] to get correct write order */
 120         swap(set_key.u.swap[0], set_key.u.swap[1]);
 121
 122         memcpy(set_key.key, key, WLAN_KEY_LEN_CCMP);
 123
 124         dev_dbg(&priv->usb->dev, "offset %d key ctl %d set key %24ph\n",
 125                 offset, key_ctl, (u8 *)&set_key);
 126
 127         vnt_control_out(priv, MESSAGE_TYPE_SETKEY, offset,
 128                         (u16)key_idx, sizeof(struct vnt_mac_set_key),
 129                         (u8 *)&set_key);
 130 }
 131
 132 int vnt_mac_reg_bits_off(struct vnt_private *priv, u8 reg_ofs, u8 bits)
 133 {
 134         u8 data[2];
 135
 136         data[0] = 0;
 137         data[1] = bits;
 138
 139         return vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, reg_ofs,
 140                                MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
 141 }
 142
 143 int vnt_mac_reg_bits_on(struct vnt_private *priv, u8 reg_ofs, u8 bits)
 144 {
 145         u8 data[2];
 146
 147         data[0] = bits;
 148         data[1] = bits;
 149
 150         return vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, reg_ofs,
 151                                MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
 152 }
 153
 154 void vnt_mac_write_word(struct vnt_private *priv, u8 reg_ofs, u16 word)
 155 {
 156         u8 data[2];
 157
 158         data[0] = (u8)(word & 0xff);
 159         data[1] = (u8)(word >> 8);
 160
 161         vnt_control_out(priv, MESSAGE_TYPE_WRITE, reg_ofs,
 162                         MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
 163 }
 164
 165 void vnt_mac_set_bssid_addr(struct vnt_private *priv, u8 *addr)
 166 {
 167         vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_BSSID0,
 168                         MESSAGE_REQUEST_MACREG, ETH_ALEN, addr);
 169 }
 170
 171 void vnt_mac_enable_protect_mode(struct vnt_private *priv)
 172 {
 173         u8 data[2];
 174
 175         data[0] = EnCFG_ProtectMd;
 176         data[1] = EnCFG_ProtectMd;
 177
 178         vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, MAC_REG_ENCFG0,
 179                         MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
 180 }
 181
 182 void vnt_mac_disable_protect_mode(struct vnt_private *priv)
 183 {
 184         u8 data[2];
 185
 186         data[0] = 0;
 187         data[1] = EnCFG_ProtectMd;
 188
 189         vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, MAC_REG_ENCFG0,
 190                         MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
 191 }
 192
 193 void vnt_mac_enable_barker_preamble_mode(struct vnt_private *priv)
 194 {
 195         u8 data[2];
 196
 197         data[0] = EnCFG_BarkerPream;
 198         data[1] = EnCFG_BarkerPream;
 199
 200         vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, MAC_REG_ENCFG2,
 201                         MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
 202 }
 203
 204 void vnt_mac_disable_barker_preamble_mode(struct vnt_private *priv)
 205 {
 206         u8 data[2];
 207
 208         data[0] = 0;
 209         data[1] = EnCFG_BarkerPream;
 210
 211         vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, MAC_REG_ENCFG2,
 212                         MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
 213 }
 214
 215 void vnt_mac_set_beacon_interval(struct vnt_private *priv, u16 interval)
 216 {
 217         u8 data[2];
 218
 219         data[0] = (u8)(interval & 0xff);
 220         data[1] = (u8)(interval >> 8);
 221
 222         vnt_control_out(priv, MESSAGE_TYPE_WRITE, MAC_REG_BI,
 223                         MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
 224 }
 225
 226 int vnt_mac_set_led(struct vnt_private *priv, u8 state, u8 led)
 227 {
 228         u8 data[2];
 229
 230         data[0] = led;
 231         data[1] = state;
 232
 233         return vnt_control_out(priv, MESSAGE_TYPE_WRITE_MASK, MAC_REG_PAPEDELAY,
 234                                MESSAGE_REQUEST_MACREG, ARRAY_SIZE(data), data);
 235 }