drivers/staging/vt6655/channel.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  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * File: channel.c
  20  *
  21  */
  22
  23 #include "baseband.h"
  24 #include "channel.h"
  25 #include "device.h"
  26 #include "rf.h"
  27
  28 static struct ieee80211_rate vnt_rates_bg[] = {
  29         { .bitrate = 10,  .hw_value = RATE_1M },
  30         { .bitrate = 20,  .hw_value = RATE_2M },
  31         { .bitrate = 55,  .hw_value = RATE_5M },
  32         { .bitrate = 110, .hw_value = RATE_11M },
  33         { .bitrate = 60,  .hw_value = RATE_6M },
  34         { .bitrate = 90,  .hw_value = RATE_9M },
  35         { .bitrate = 120, .hw_value = RATE_12M },
  36         { .bitrate = 180, .hw_value = RATE_18M },
  37         { .bitrate = 240, .hw_value = RATE_24M },
  38         { .bitrate = 360, .hw_value = RATE_36M },
  39         { .bitrate = 480, .hw_value = RATE_48M },
  40         { .bitrate = 540, .hw_value = RATE_54M },
  41 };
  42
  43 static struct ieee80211_rate vnt_rates_a[] = {
  44         { .bitrate = 60,  .hw_value = RATE_6M },
  45         { .bitrate = 90,  .hw_value = RATE_9M },
  46         { .bitrate = 120, .hw_value = RATE_12M },
  47         { .bitrate = 180, .hw_value = RATE_18M },
  48         { .bitrate = 240, .hw_value = RATE_24M },
  49         { .bitrate = 360, .hw_value = RATE_36M },
  50         { .bitrate = 480, .hw_value = RATE_48M },
  51         { .bitrate = 540, .hw_value = RATE_54M },
  52 };
  53
  54 static struct ieee80211_channel vnt_channels_2ghz[] = {
  55         { .center_freq = 2412, .hw_value = 1 },
  56         { .center_freq = 2417, .hw_value = 2 },
  57         { .center_freq = 2422, .hw_value = 3 },
  58         { .center_freq = 2427, .hw_value = 4 },
  59         { .center_freq = 2432, .hw_value = 5 },
  60         { .center_freq = 2437, .hw_value = 6 },
  61         { .center_freq = 2442, .hw_value = 7 },
  62         { .center_freq = 2447, .hw_value = 8 },
  63         { .center_freq = 2452, .hw_value = 9 },
  64         { .center_freq = 2457, .hw_value = 10 },
  65         { .center_freq = 2462, .hw_value = 11 },
  66         { .center_freq = 2467, .hw_value = 12 },
  67         { .center_freq = 2472, .hw_value = 13 },
  68         { .center_freq = 2484, .hw_value = 14 }
  69 };
  70
  71 static struct ieee80211_channel vnt_channels_5ghz[] = {
  72         { .center_freq = 4915, .hw_value = 15 },
  73         { .center_freq = 4920, .hw_value = 16 },
  74         { .center_freq = 4925, .hw_value = 17 },
  75         { .center_freq = 4935, .hw_value = 18 },
  76         { .center_freq = 4940, .hw_value = 19 },
  77         { .center_freq = 4945, .hw_value = 20 },
  78         { .center_freq = 4960, .hw_value = 21 },
  79         { .center_freq = 4980, .hw_value = 22 },
  80         { .center_freq = 5035, .hw_value = 23 },
  81         { .center_freq = 5040, .hw_value = 24 },
  82         { .center_freq = 5045, .hw_value = 25 },
  83         { .center_freq = 5055, .hw_value = 26 },
  84         { .center_freq = 5060, .hw_value = 27 },
  85         { .center_freq = 5080, .hw_value = 28 },
  86         { .center_freq = 5170, .hw_value = 29 },
  87         { .center_freq = 5180, .hw_value = 30 },
  88         { .center_freq = 5190, .hw_value = 31 },
  89         { .center_freq = 5200, .hw_value = 32 },
  90         { .center_freq = 5210, .hw_value = 33 },
  91         { .center_freq = 5220, .hw_value = 34 },
  92         { .center_freq = 5230, .hw_value = 35 },
  93         { .center_freq = 5240, .hw_value = 36 },
  94         { .center_freq = 5260, .hw_value = 37 },
  95         { .center_freq = 5280, .hw_value = 38 },
  96         { .center_freq = 5300, .hw_value = 39 },
  97         { .center_freq = 5320, .hw_value = 40 },
  98         { .center_freq = 5500, .hw_value = 41 },
  99         { .center_freq = 5520, .hw_value = 42 },
 100         { .center_freq = 5540, .hw_value = 43 },
 101         { .center_freq = 5560, .hw_value = 44 },
 102         { .center_freq = 5580, .hw_value = 45 },
 103         { .center_freq = 5600, .hw_value = 46 },
 104         { .center_freq = 5620, .hw_value = 47 },
 105         { .center_freq = 5640, .hw_value = 48 },
 106         { .center_freq = 5660, .hw_value = 49 },
 107         { .center_freq = 5680, .hw_value = 50 },
 108         { .center_freq = 5700, .hw_value = 51 },
 109         { .center_freq = 5745, .hw_value = 52 },
 110         { .center_freq = 5765, .hw_value = 53 },
 111         { .center_freq = 5785, .hw_value = 54 },
 112         { .center_freq = 5805, .hw_value = 55 },
 113         { .center_freq = 5825, .hw_value = 56 }
 114 };
 115
 116 static struct ieee80211_supported_band vnt_supported_2ghz_band = {
 117         .channels = vnt_channels_2ghz,
 118         .n_channels = ARRAY_SIZE(vnt_channels_2ghz),
 119         .bitrates = vnt_rates_bg,
 120         .n_bitrates = ARRAY_SIZE(vnt_rates_bg),
 121 };
 122
 123 static struct ieee80211_supported_band vnt_supported_5ghz_band = {
 124         .channels = vnt_channels_5ghz,
 125         .n_channels = ARRAY_SIZE(vnt_channels_5ghz),
 126         .bitrates = vnt_rates_a,
 127         .n_bitrates = ARRAY_SIZE(vnt_rates_a),
 128 };
 129
 130 void vnt_init_bands(struct vnt_private *priv)
 131 {
 132         struct ieee80211_channel *ch;
 133         int i;
 134
 135         switch (priv->byRFType) {
 136         case RF_AIROHA7230:
 137         case RF_UW2452:
 138         case RF_NOTHING:
 139         default:
 140                 ch = vnt_channels_5ghz;
 141
 142                 for (i = 0; i < ARRAY_SIZE(vnt_channels_5ghz); i++) {
 143                         ch[i].max_power = 0x3f;
 144                         ch[i].flags = IEEE80211_CHAN_NO_HT40;
 145                 }
 146
 147                 priv->hw->wiphy->bands[NL80211_BAND_5GHZ] =
 148                                                 &vnt_supported_5ghz_band;
 149         /* fallthrough */
 150         case RF_RFMD2959:
 151         case RF_AIROHA:
 152         case RF_AL2230S:
 153         case RF_UW2451:
 154         case RF_VT3226:
 155                 ch = vnt_channels_2ghz;
 156
 157                 for (i = 0; i < ARRAY_SIZE(vnt_channels_2ghz); i++) {
 158                         ch[i].max_power = 0x3f;
 159                         ch[i].flags = IEEE80211_CHAN_NO_HT40;
 160                 }
 161
 162                 priv->hw->wiphy->bands[NL80211_BAND_2GHZ] =
 163                                                 &vnt_supported_2ghz_band;
 164                 break;
 165         }
 166 }
 167
 168 /**
 169  * set_channel() - Set NIC media channel
 170  *
 171  * @pDeviceHandler: The adapter to be set
 172  * @uConnectionChannel: Channel to be set
 173  *
 174  * Return Value: true if succeeded; false if failed.
 175  *
 176  */
 177 bool set_channel(struct vnt_private *priv, struct ieee80211_channel *ch)
 178 {
 179         bool ret = true;
 180
 181         if (priv->byCurrentCh == ch->hw_value)
 182                 return ret;
 183
 184         /* Set VGA to max sensitivity */
 185         if (priv->bUpdateBBVGA &&
 186             priv->byBBVGACurrent != priv->abyBBVGA[0]) {
 187                 priv->byBBVGACurrent = priv->abyBBVGA[0];
 188
 189                 BBvSetVGAGainOffset(priv, priv->byBBVGACurrent);
 190         }
 191
 192         /* clear NAV */
 193         MACvRegBitsOn(priv->PortOffset, MAC_REG_MACCR, MACCR_CLRNAV);
 194
 195         /* TX_PE will reserve 3 us for MAX2829 A mode only,
 196          * it is for better TX throughput
 197          */
 198
 199         if (priv->byRFType == RF_AIROHA7230)
 200                 RFbAL7230SelectChannelPostProcess(priv, priv->byCurrentCh,
 201                                                   ch->hw_value);
 202
 203         priv->byCurrentCh = ch->hw_value;
 204         ret &= RFbSelectChannel(priv, priv->byRFType,
 205                                 ch->hw_value);
 206
 207         /* Init Synthesizer Table */
 208         if (priv->bEnablePSMode)
 209                 RFvWriteWakeProgSyn(priv, priv->byRFType, ch->hw_value);
 210
 211         BBvSoftwareReset(priv);
 212
 213         if (priv->byLocalID > REV_ID_VT3253_B1) {
 214                 unsigned long flags;
 215
 216                 spin_lock_irqsave(&priv->lock, flags);
 217
 218                 /* set HW default power register */
 219                 MACvSelectPage1(priv->PortOffset);
 220                 RFbSetPower(priv, RATE_1M, priv->byCurrentCh);
 221                 VNSvOutPortB(priv->PortOffset + MAC_REG_PWRCCK,
 222                              priv->byCurPwr);
 223                 RFbSetPower(priv, RATE_6M, priv->byCurrentCh);
 224                 VNSvOutPortB(priv->PortOffset + MAC_REG_PWROFDM,
 225                              priv->byCurPwr);
 226                 MACvSelectPage0(priv->PortOffset);
 227
 228                 spin_unlock_irqrestore(&priv->lock, flags);
 229         }
 230
 231         if (priv->byBBType == BB_TYPE_11B)
 232                 RFbSetPower(priv, RATE_1M, priv->byCurrentCh);
 233         else
 234                 RFbSetPower(priv, RATE_6M, priv->byCurrentCh);
 235
 236         return ret;
 237 }