LXR linux/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
  28static 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
  43static 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
  54static 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
  71static 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
 116static 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
 123static 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
 130void 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[IEEE80211_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[IEEE80211_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 */
 177bool set_channel(void *pDeviceHandler, struct ieee80211_channel *ch)
 178{
 179        struct vnt_private *pDevice = pDeviceHandler;
 180        bool bResult = true;
 181
 182        if (pDevice->byCurrentCh == ch->hw_value)
 183                return bResult;
 184
 185        /* Set VGA to max sensitivity */
 186        if (pDevice->bUpdateBBVGA &&
 187            pDevice->byBBVGACurrent != pDevice->abyBBVGA[0]) {
 188                pDevice->byBBVGACurrent = pDevice->abyBBVGA[0];
 189
 190                BBvSetVGAGainOffset(pDevice, pDevice->byBBVGACurrent);
 191        }
 192
 193        /* clear NAV */
 194        MACvRegBitsOn(pDevice->PortOffset, MAC_REG_MACCR, MACCR_CLRNAV);
 195
 196        /* TX_PE will reserve 3 us for MAX2829 A mode only,
 197           it is for better TX throughput */
 198
 199        if (pDevice->byRFType == RF_AIROHA7230)
 200                RFbAL7230SelectChannelPostProcess(pDevice, pDevice->byCurrentCh,
 201                                                  ch->hw_value);
 202
 203        pDevice->byCurrentCh = ch->hw_value;
 204        bResult &= RFbSelectChannel(pDevice, pDevice->byRFType,
 205                                    ch->hw_value);
 206
 207        /* Init Synthesizer Table */
 208        if (pDevice->bEnablePSMode)
 209                RFvWriteWakeProgSyn(pDevice, pDevice->byRFType, ch->hw_value);
 210
 211        BBvSoftwareReset(pDevice);
 212
 213        if (pDevice->byLocalID > REV_ID_VT3253_B1) {
 214                unsigned long flags;
 215
 216                spin_lock_irqsave(&pDevice->lock, flags);
 217
 218                /* set HW default power register */
 219                MACvSelectPage1(pDevice->PortOffset);
 220                RFbSetPower(pDevice, RATE_1M, pDevice->byCurrentCh);
 221                VNSvOutPortB(pDevice->PortOffset + MAC_REG_PWRCCK,
 222                             pDevice->byCurPwr);
 223                RFbSetPower(pDevice, RATE_6M, pDevice->byCurrentCh);
 224                VNSvOutPortB(pDevice->PortOffset + MAC_REG_PWROFDM,
 225                             pDevice->byCurPwr);
 226                MACvSelectPage0(pDevice->PortOffset);
 227
 228                spin_unlock_irqrestore(&pDevice->lock, flags);
 229        }
 230
 231        if (pDevice->byBBType == BB_TYPE_11B)
 232                RFbSetPower(pDevice, RATE_1M, pDevice->byCurrentCh);
 233        else
 234                RFbSetPower(pDevice, RATE_6M, pDevice->byCurrentCh);
 235
 236        return bResult;
 237}
 238