drivers/staging/vt6655/channel.c - linux - Git at Google

 /*
  * 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;
 }
	/*
	* 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;
	}