text: /*
   * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
   * All rights reserved.
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License along
   * with this program; if not, write to the Free Software Foundation, Inc.,
   * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * File: channel.c
   *
   */
  
  #include "baseband.h"
  #include "channel.h"
  #include "device.h"
  #include "rf.h"
  
  static struct ieee80211_rate vnt_rates_bg[] = {
  	{ .bitrate = 10,  .hw_value = RATE_1M },
  	{ .bitrate = 20,  .hw_value = RATE_2M },
  	{ .bitrate = 55,  .hw_value = RATE_5M },
  	{ .bitrate = 110, .hw_value = RATE_11M },
  	{ .bitrate = 60,  .hw_value = RATE_6M },
  	{ .bitrate = 90,  .hw_value = RATE_9M },
  	{ .bitrate = 120, .hw_value = RATE_12M },
  	{ .bitrate = 180, .hw_value = RATE_18M },
  	{ .bitrate = 240, .hw_value = RATE_24M },
  	{ .bitrate = 360, .hw_value = RATE_36M },
  	{ .bitrate = 480, .hw_value = RATE_48M },
  	{ .bitrate = 540, .hw_value = RATE_54M },
  };
  
  static struct ieee80211_rate vnt_rates_a[] = {
  	{ .bitrate = 60,  .hw_value = RATE_6M },
  	{ .bitrate = 90,  .hw_value = RATE_9M },
  	{ .bitrate = 120, .hw_value = RATE_12M },
  	{ .bitrate = 180, .hw_value = RATE_18M },
  	{ .bitrate = 240, .hw_value = RATE_24M },
  	{ .bitrate = 360, .hw_value = RATE_36M },
  	{ .bitrate = 480, .hw_value = RATE_48M },
  	{ .bitrate = 540, .hw_value = RATE_54M },
  };
  
  static struct ieee80211_channel vnt_channels_2ghz[] = {
  	{ .center_freq = 2412, .hw_value = 1 },
  	{ .center_freq = 2417, .hw_value = 2 },
  	{ .center_freq = 2422, .hw_value = 3 },
  	{ .center_freq = 2427, .hw_value = 4 },
  	{ .center_freq = 2432, .hw_value = 5 },
  	{ .center_freq = 2437, .hw_value = 6 },
  	{ .center_freq = 2442, .hw_value = 7 },
  	{ .center_freq = 2447, .hw_value = 8 },
  	{ .center_freq = 2452, .hw_value = 9 },
  	{ .center_freq = 2457, .hw_value = 10 },
  	{ .center_freq = 2462, .hw_value = 11 },
  	{ .center_freq = 2467, .hw_value = 12 },
  	{ .center_freq = 2472, .hw_value = 13 },
  	{ .center_freq = 2484, .hw_value = 14 }
  };
  
  static struct ieee80211_channel vnt_channels_5ghz[] = {
  	{ .center_freq = 4915, .hw_value = 15 },
  	{ .center_freq = 4920, .hw_value = 16 },
  	{ .center_freq = 4925, .hw_value = 17 },
  	{ .center_freq = 4935, .hw_value = 18 },
  	{ .center_freq = 4940, .hw_value = 19 },
  	{ .center_freq = 4945, .hw_value = 20 },
  	{ .center_freq = 4960, .hw_value = 21 },
  	{ .center_freq = 4980, .hw_value = 22 },
  	{ .center_freq = 5035, .hw_value = 23 },
  	{ .center_freq = 5040, .hw_value = 24 },
  	{ .center_freq = 5045, .hw_value = 25 },
  	{ .center_freq = 5055, .hw_value = 26 },
  	{ .center_freq = 5060, .hw_value = 27 },
  	{ .center_freq = 5080, .hw_value = 28 },
  	{ .center_freq = 5170, .hw_value = 29 },
  	{ .center_freq = 5180, .hw_value = 30 },
  	{ .center_freq = 5190, .hw_value = 31 },
  	{ .center_freq = 5200, .hw_value = 32 },
  	{ .center_freq = 5210, .hw_value = 33 },
  	{ .center_freq = 5220, .hw_value = 34 },
  	{ .center_freq = 5230, .hw_value = 35 },
  	{ .center_freq = 5240, .hw_value = 36 },
  	{ .center_freq = 5260, .hw_value = 37 },
  	{ .center_freq = 5280, .hw_value = 38 },
  	{ .center_freq = 5300, .hw_value = 39 },
  	{ .center_freq = 5320, .hw_value = 40 },
  	{ .center_freq = 5500, .hw_value = 41 },
  	{ .center_freq = 5520, .hw_value = 42 },
  	{ .center_freq = 5540, .hw_value = 43 },
  	{ .center_freq = 5560, .hw_value = 44 },
  	{ .center_freq = 5580, .hw_value = 45 },
  	{ .center_freq = 5600, .hw_value = 46 },
  	{ .center_freq = 5620, .hw_value = 47 },
  	{ .center_freq = 5640, .hw_value = 48 },
  	{ .center_freq = 5660, .hw_value = 49 },
  	{ .center_freq = 5680, .hw_value = 50 },
  	{ .center_freq = 5700, .hw_value = 51 },
  	{ .center_freq = 5745, .hw_value = 52 },
  	{ .center_freq = 5765, .hw_value = 53 },
  	{ .center_freq = 5785, .hw_value = 54 },
  	{ .center_freq = 5805, .hw_value = 55 },
  	{ .center_freq = 5825, .hw_value = 56 }
  };
  
  static struct ieee80211_supported_band vnt_supported_2ghz_band = {
  	.channels = vnt_channels_2ghz,
  	.n_channels = ARRAY_SIZE(vnt_channels_2ghz),
  	.bitrates = vnt_rates_bg,
  	.n_bitrates = ARRAY_SIZE(vnt_rates_bg),
  };
  
  static struct ieee80211_supported_band vnt_supported_5ghz_band = {
  	.channels = vnt_channels_5ghz,
  	.n_channels = ARRAY_SIZE(vnt_channels_5ghz),
  	.bitrates = vnt_rates_a,
  	.n_bitrates = ARRAY_SIZE(vnt_rates_a),
  };
  
  void vnt_init_bands(struct vnt_private *priv)
  {
  	struct ieee80211_channel *ch;
  	int i;
  
  	switch (priv->byRFType) {
  	case RF_AIROHA7230:
  	case RF_UW2452:
  	case RF_NOTHING:
  	default:
  		ch = vnt_channels_5ghz;
  
  		for (i = 0; i < ARRAY_SIZE(vnt_channels_5ghz); i++) {
  			ch[i].max_power = 0x3f;
  			ch[i].flags = IEEE80211_CHAN_NO_HT40;
  		}
  
  		priv->hw->wiphy->bands[NL80211_BAND_5GHZ] =
  						&vnt_supported_5ghz_band;
  	/* fallthrough */
  	case RF_RFMD2959:
  	case RF_AIROHA:
  	case RF_AL2230S:
  	case RF_UW2451:
  	case RF_VT3226:
  		ch = vnt_channels_2ghz;
  
  		for (i = 0; i < ARRAY_SIZE(vnt_channels_2ghz); i++) {
  			ch[i].max_power = 0x3f;
  			ch[i].flags = IEEE80211_CHAN_NO_HT40;
  		}
  
  		priv->hw->wiphy->bands[NL80211_BAND_2GHZ] =
  						&vnt_supported_2ghz_band;
  		break;
  	}
  }
  
  /**
   * set_channel() - Set NIC media channel
   *
   * @pDeviceHandler: The adapter to be set
   * @uConnectionChannel: Channel to be set
   *
   * Return Value: true if succeeded; false if failed.
   *
   */
  bool set_channel(struct vnt_private *priv, struct ieee80211_channel *ch)
  {
  	bool ret = true;
  
  	if (priv->byCurrentCh == ch->hw_value)
  		return ret;
  
  	/* Set VGA to max sensitivity */
  	if (priv->bUpdateBBVGA &&
  	    priv->byBBVGACurrent != priv->abyBBVGA[0]) {
  		priv->byBBVGACurrent = priv->abyBBVGA[0];
  
  		BBvSetVGAGainOffset(priv, priv->byBBVGACurrent);
  	}
  
  	/* clear NAV */
  	MACvRegBitsOn(priv->PortOffset, MAC_REG_MACCR, MACCR_CLRNAV);
  
  	/* TX_PE will reserve 3 us for MAX2829 A mode only,
  	   it is for better TX throughput */
  
  	if (priv->byRFType == RF_AIROHA7230)
  		RFbAL7230SelectChannelPostProcess(priv, priv->byCurrentCh,
  						  ch->hw_value);
  
  	priv->byCurrentCh = ch->hw_value;
  	ret &= RFbSelectChannel(priv, priv->byRFType,
  				ch->hw_value);
  
  	/* Init Synthesizer Table */
  	if (priv->bEnablePSMode)
  		RFvWriteWakeProgSyn(priv, priv->byRFType, ch->hw_value);
  
  	BBvSoftwareReset(priv);
  
  	if (priv->byLocalID > REV_ID_VT3253_B1) {
  		unsigned long flags;
  
  		spin_lock_irqsave(&priv->lock, flags);
  
  		/* set HW default power register */
  		MACvSelectPage1(priv->PortOffset);
  		RFbSetPower(priv, RATE_1M, priv->byCurrentCh);
  		VNSvOutPortB(priv->PortOffset + MAC_REG_PWRCCK,
  			     priv->byCurPwr);
  		RFbSetPower(priv, RATE_6M, priv->byCurrentCh);
  		VNSvOutPortB(priv->PortOffset + MAC_REG_PWROFDM,
  			     priv->byCurPwr);
  		MACvSelectPage0(priv->PortOffset);
  
  		spin_unlock_irqrestore(&priv->lock, flags);
  	}
  
  	if (priv->byBBType == BB_TYPE_11B)
  		RFbSetPower(priv, RATE_1M, priv->byCurrentCh);
  	else
  		RFbSetPower(priv, RATE_6M, priv->byCurrentCh);
  
  	return ret;
  }
  