drivers/staging/vt6655/channel.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: channel.c
   7  *
   8  */
   9
  10 #include "baseband.h"
  11 #include "channel.h"
  12 #include "device.h"
  13 #include "rf.h"
  14
  15 static struct ieee80211_rate vnt_rates_bg[] = {
  16         { .bitrate = 10,  .hw_value = RATE_1M },
  17         { .bitrate = 20,  .hw_value = RATE_2M },
  18         { .bitrate = 55,  .hw_value = RATE_5M },
  19         { .bitrate = 110, .hw_value = RATE_11M },
  20         { .bitrate = 60,  .hw_value = RATE_6M },
  21         { .bitrate = 90,  .hw_value = RATE_9M },
  22         { .bitrate = 120, .hw_value = RATE_12M },
  23         { .bitrate = 180, .hw_value = RATE_18M },
  24         { .bitrate = 240, .hw_value = RATE_24M },
  25         { .bitrate = 360, .hw_value = RATE_36M },
  26         { .bitrate = 480, .hw_value = RATE_48M },
  27         { .bitrate = 540, .hw_value = RATE_54M },
  28 };
  29
  30 static struct ieee80211_rate vnt_rates_a[] = {
  31         { .bitrate = 60,  .hw_value = RATE_6M },
  32         { .bitrate = 90,  .hw_value = RATE_9M },
  33         { .bitrate = 120, .hw_value = RATE_12M },
  34         { .bitrate = 180, .hw_value = RATE_18M },
  35         { .bitrate = 240, .hw_value = RATE_24M },
  36         { .bitrate = 360, .hw_value = RATE_36M },
  37         { .bitrate = 480, .hw_value = RATE_48M },
  38         { .bitrate = 540, .hw_value = RATE_54M },
  39 };
  40
  41 static struct ieee80211_channel vnt_channels_2ghz[] = {
  42         { .center_freq = 2412, .hw_value = 1 },
  43         { .center_freq = 2417, .hw_value = 2 },
  44         { .center_freq = 2422, .hw_value = 3 },
  45         { .center_freq = 2427, .hw_value = 4 },
  46         { .center_freq = 2432, .hw_value = 5 },
  47         { .center_freq = 2437, .hw_value = 6 },
  48         { .center_freq = 2442, .hw_value = 7 },
  49         { .center_freq = 2447, .hw_value = 8 },
  50         { .center_freq = 2452, .hw_value = 9 },
  51         { .center_freq = 2457, .hw_value = 10 },
  52         { .center_freq = 2462, .hw_value = 11 },
  53         { .center_freq = 2467, .hw_value = 12 },
  54         { .center_freq = 2472, .hw_value = 13 },
  55         { .center_freq = 2484, .hw_value = 14 }
  56 };
  57
  58 static struct ieee80211_channel vnt_channels_5ghz[] = {
  59         { .center_freq = 4915, .hw_value = 15 },
  60         { .center_freq = 4920, .hw_value = 16 },
  61         { .center_freq = 4925, .hw_value = 17 },
  62         { .center_freq = 4935, .hw_value = 18 },
  63         { .center_freq = 4940, .hw_value = 19 },
  64         { .center_freq = 4945, .hw_value = 20 },
  65         { .center_freq = 4960, .hw_value = 21 },
  66         { .center_freq = 4980, .hw_value = 22 },
  67         { .center_freq = 5035, .hw_value = 23 },
  68         { .center_freq = 5040, .hw_value = 24 },
  69         { .center_freq = 5045, .hw_value = 25 },
  70         { .center_freq = 5055, .hw_value = 26 },
  71         { .center_freq = 5060, .hw_value = 27 },
  72         { .center_freq = 5080, .hw_value = 28 },
  73         { .center_freq = 5170, .hw_value = 29 },
  74         { .center_freq = 5180, .hw_value = 30 },
  75         { .center_freq = 5190, .hw_value = 31 },
  76         { .center_freq = 5200, .hw_value = 32 },
  77         { .center_freq = 5210, .hw_value = 33 },
  78         { .center_freq = 5220, .hw_value = 34 },
  79         { .center_freq = 5230, .hw_value = 35 },
  80         { .center_freq = 5240, .hw_value = 36 },
  81         { .center_freq = 5260, .hw_value = 37 },
  82         { .center_freq = 5280, .hw_value = 38 },
  83         { .center_freq = 5300, .hw_value = 39 },
  84         { .center_freq = 5320, .hw_value = 40 },
  85         { .center_freq = 5500, .hw_value = 41 },
  86         { .center_freq = 5520, .hw_value = 42 },
  87         { .center_freq = 5540, .hw_value = 43 },
  88         { .center_freq = 5560, .hw_value = 44 },
  89         { .center_freq = 5580, .hw_value = 45 },
  90         { .center_freq = 5600, .hw_value = 46 },
  91         { .center_freq = 5620, .hw_value = 47 },
  92         { .center_freq = 5640, .hw_value = 48 },
  93         { .center_freq = 5660, .hw_value = 49 },
  94         { .center_freq = 5680, .hw_value = 50 },
  95         { .center_freq = 5700, .hw_value = 51 },
  96         { .center_freq = 5745, .hw_value = 52 },
  97         { .center_freq = 5765, .hw_value = 53 },
  98         { .center_freq = 5785, .hw_value = 54 },
  99         { .center_freq = 5805, .hw_value = 55 },
 100         { .center_freq = 5825, .hw_value = 56 }
 101 };
 102
 103 static struct ieee80211_supported_band vnt_supported_2ghz_band = {
 104         .channels = vnt_channels_2ghz,
 105         .n_channels = ARRAY_SIZE(vnt_channels_2ghz),
 106         .bitrates = vnt_rates_bg,
 107         .n_bitrates = ARRAY_SIZE(vnt_rates_bg),
 108 };
 109
 110 static struct ieee80211_supported_band vnt_supported_5ghz_band = {
 111         .channels = vnt_channels_5ghz,
 112         .n_channels = ARRAY_SIZE(vnt_channels_5ghz),
 113         .bitrates = vnt_rates_a,
 114         .n_bitrates = ARRAY_SIZE(vnt_rates_a),
 115 };
 116
 117 void vnt_init_bands(struct vnt_private *priv)
 118 {
 119         struct ieee80211_channel *ch;
 120         int i;
 121
 122         switch (priv->byRFType) {
 123         case RF_AIROHA7230:
 124         case RF_UW2452:
 125         case RF_NOTHING:
 126         default:
 127                 ch = vnt_channels_5ghz;
 128
 129                 for (i = 0; i < ARRAY_SIZE(vnt_channels_5ghz); i++) {
 130                         ch[i].max_power = 0x3f;
 131                         ch[i].flags = IEEE80211_CHAN_NO_HT40;
 132                 }
 133
 134                 priv->hw->wiphy->bands[NL80211_BAND_5GHZ] =
 135                                                 &vnt_supported_5ghz_band;
 136         /* fallthrough */
 137         case RF_RFMD2959:
 138         case RF_AIROHA:
 139         case RF_AL2230S:
 140         case RF_UW2451:
 141         case RF_VT3226:
 142                 ch = vnt_channels_2ghz;
 143
 144                 for (i = 0; i < ARRAY_SIZE(vnt_channels_2ghz); i++) {
 145                         ch[i].max_power = 0x3f;
 146                         ch[i].flags = IEEE80211_CHAN_NO_HT40;
 147                 }
 148
 149                 priv->hw->wiphy->bands[NL80211_BAND_2GHZ] =
 150                                                 &vnt_supported_2ghz_band;
 151                 break;
 152         }
 153 }
 154
 155 /**
 156  * set_channel() - Set NIC media channel
 157  *
 158  * @pDeviceHandler: The adapter to be set
 159  * @uConnectionChannel: Channel to be set
 160  *
 161  * Return Value: true if succeeded; false if failed.
 162  *
 163  */
 164 bool set_channel(struct vnt_private *priv, struct ieee80211_channel *ch)
 165 {
 166         bool ret = true;
 167
 168         if (priv->byCurrentCh == ch->hw_value)
 169                 return ret;
 170
 171         /* Set VGA to max sensitivity */
 172         if (priv->bUpdateBBVGA &&
 173             priv->byBBVGACurrent != priv->abyBBVGA[0]) {
 174                 priv->byBBVGACurrent = priv->abyBBVGA[0];
 175
 176                 BBvSetVGAGainOffset(priv, priv->byBBVGACurrent);
 177         }
 178
 179         /* clear NAV */
 180         MACvRegBitsOn(priv->PortOffset, MAC_REG_MACCR, MACCR_CLRNAV);
 181
 182         /* TX_PE will reserve 3 us for MAX2829 A mode only,
 183          * it is for better TX throughput
 184          */
 185
 186         if (priv->byRFType == RF_AIROHA7230)
 187                 RFbAL7230SelectChannelPostProcess(priv, priv->byCurrentCh,
 188                                                   ch->hw_value);
 189
 190         priv->byCurrentCh = ch->hw_value;
 191         ret &= RFbSelectChannel(priv, priv->byRFType,
 192                                 ch->hw_value);
 193
 194         /* Init Synthesizer Table */
 195         if (priv->bEnablePSMode)
 196                 RFvWriteWakeProgSyn(priv, priv->byRFType, ch->hw_value);
 197
 198         BBvSoftwareReset(priv);
 199
 200         if (priv->byLocalID > REV_ID_VT3253_B1) {
 201                 unsigned long flags;
 202
 203                 spin_lock_irqsave(&priv->lock, flags);
 204
 205                 /* set HW default power register */
 206                 MACvSelectPage1(priv->PortOffset);
 207                 RFbSetPower(priv, RATE_1M, priv->byCurrentCh);
 208                 VNSvOutPortB(priv->PortOffset + MAC_REG_PWRCCK,
 209                              priv->byCurPwr);
 210                 RFbSetPower(priv, RATE_6M, priv->byCurrentCh);
 211                 VNSvOutPortB(priv->PortOffset + MAC_REG_PWROFDM,
 212                              priv->byCurPwr);
 213                 MACvSelectPage0(priv->PortOffset);
 214
 215                 spin_unlock_irqrestore(&priv->lock, flags);
 216         }
 217
 218         if (priv->byBBType == BB_TYPE_11B)
 219                 RFbSetPower(priv, RATE_1M, priv->byCurrentCh);
 220         else
 221                 RFbSetPower(priv, RATE_6M, priv->byCurrentCh);
 222
 223         return ret;
 224 }