xref: /Linux-v5.4/drivers/net/wireless/ath/ath9k/ar5008_phy.c

/*
 * Copyright (c) 2008-2011 Atheros Communications Inc.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include "hw.h"
#include "hw-ops.h"
#include "../regd.h"
#include "ar9002_phy.h"
#include "ar5008_initvals.h"

/* All code below is for AR5008, AR9001, AR9002 */

#define AR5008_OFDM_RATES		8
#define AR5008_HT_SS_RATES		8
#define AR5008_HT_DS_RATES		8

#define AR5008_HT20_SHIFT		16
#define AR5008_HT40_SHIFT		24

#define AR5008_11NA_OFDM_SHIFT		0
#define AR5008_11NA_HT_SS_SHIFT		8
#define AR5008_11NA_HT_DS_SHIFT		16

#define AR5008_11NG_OFDM_SHIFT		4
#define AR5008_11NG_HT_SS_SHIFT		12
#define AR5008_11NG_HT_DS_SHIFT		20

/*
 * register values to turn OFDM weak signal detection OFF
 */
static const int m1ThreshLow_off = 127;
static const int m2ThreshLow_off = 127;
static const int m1Thresh_off = 127;
static const int m2Thresh_off = 127;
static const int m2CountThr_off =  31;
static const int m2CountThrLow_off =  63;
static const int m1ThreshLowExt_off = 127;
static const int m2ThreshLowExt_off = 127;
static const int m1ThreshExt_off = 127;
static const int m2ThreshExt_off = 127;

static const struct ar5416IniArray bank0 = STATIC_INI_ARRAY(ar5416Bank0);
static const struct ar5416IniArray bank1 = STATIC_INI_ARRAY(ar5416Bank1);
static const struct ar5416IniArray bank2 = STATIC_INI_ARRAY(ar5416Bank2);
static const struct ar5416IniArray bank3 = STATIC_INI_ARRAY(ar5416Bank3);
static const struct ar5416IniArray bank7 = STATIC_INI_ARRAY(ar5416Bank7);

static void ar5008_write_bank6(struct ath_hw *ah, unsigned int *writecnt)
{
	struct ar5416IniArray *array = &ah->iniBank6;
	u32 *data = ah->analogBank6Data;
	int r;

	ENABLE_REGWRITE_BUFFER(ah);

	for (r = 0; r < array->ia_rows; r++) {
		REG_WRITE(ah, INI_RA(array, r, 0), data[r]);
		DO_DELAY(*writecnt);
	}

	REGWRITE_BUFFER_FLUSH(ah);
}

/**
 * ar5008_hw_phy_modify_rx_buffer() - perform analog swizzling of parameters
 * @rfbuf:
 * @reg32:
 * @numBits:
 * @firstBit:
 * @column:
 *
 * Performs analog "swizzling" of parameters into their location.
 * Used on external AR2133/AR5133 radios.
 */
static void ar5008_hw_phy_modify_rx_buffer(u32 *rfBuf, u32 reg32,
					   u32 numBits, u32 firstBit,
					   u32 column)
{
	u32 tmp32, mask, arrayEntry, lastBit;
	int32_t bitPosition, bitsLeft;

	tmp32 = ath9k_hw_reverse_bits(reg32, numBits);
	arrayEntry = (firstBit - 1) / 8;
	bitPosition = (firstBit - 1) % 8;
	bitsLeft = numBits;
	while (bitsLeft > 0) {
		lastBit = (bitPosition + bitsLeft > 8) ?
		    8 : bitPosition + bitsLeft;
		mask = (((1 << lastBit) - 1) ^ ((1 << bitPosition) - 1)) <<
		    (column * 8);
		rfBuf[arrayEntry] &= ~mask;
		rfBuf[arrayEntry] |= ((tmp32 << bitPosition) <<
				      (column * 8)) & mask;
		bitsLeft -= 8 - bitPosition;
		tmp32 = tmp32 >> (8 - bitPosition);
		bitPosition = 0;
		arrayEntry++;
	}
}

/*
 * Fix on 2.4 GHz band for orientation sensitivity issue by increasing
 * rf_pwd_icsyndiv.
 *
 * Theoretical Rules:
 *   if 2 GHz band
 *      if forceBiasAuto
 *         if synth_freq < 2412
 *            bias = 0
 *         else if 2412 <= synth_freq <= 2422
 *            bias = 1
 *         else // synth_freq > 2422
 *            bias = 2
 *      else if forceBias > 0
 *         bias = forceBias & 7
 *      else
 *         no change, use value from ini file
 *   else
 *      no change, invalid band
 *
 *  1st Mod:
 *    2422 also uses value of 2
 *    <approved>
 *
 *  2nd Mod:
 *    Less than 2412 uses value of 0, 2412 and above uses value of 2
 */
static void ar5008_hw_force_bias(struct ath_hw *ah, u16 synth_freq)
{
	struct ath_common *common = ath9k_hw_common(ah);
	u32 tmp_reg;
	int reg_writes = 0;
	u32 new_bias = 0;

	if (!AR_SREV_5416(ah) || synth_freq >= 3000)
		return;

	BUG_ON(AR_SREV_9280_20_OR_LATER(ah));

	if (synth_freq < 2412)
		new_bias = 0;
	else if (synth_freq < 2422)
		new_bias = 1;
	else
		new_bias = 2;

	/* pre-reverse this field */
	tmp_reg = ath9k_hw_reverse_bits(new_bias, 3);

	ath_dbg(common, CONFIG, "Force rf_pwd_icsyndiv to %1d on %4d\n",
		new_bias, synth_freq);

	/* swizzle rf_pwd_icsyndiv */
	ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data, tmp_reg, 3, 181, 3);

	/* write Bank 6 with new params */
	ar5008_write_bank6(ah, &reg_writes);
}

/**
 * ar5008_hw_set_channel - tune to a channel on the external AR2133/AR5133 radios
 * @ah: atheros hardware structure
 * @chan:
 *
 * For the external AR2133/AR5133 radios, takes the MHz channel value and set
 * the channel value. Assumes writes enabled to analog bus and bank6 register
 * cache in ah->analogBank6Data.
 */
static int ar5008_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
{
	struct ath_common *common = ath9k_hw_common(ah);
	u32 channelSel = 0;
	u32 bModeSynth = 0;
	u32 aModeRefSel = 0;
	u32 reg32 = 0;
	u16 freq;
	struct chan_centers centers;

	ath9k_hw_get_channel_centers(ah, chan, &centers);
	freq = centers.synth_center;

	if (freq < 4800) {
		u32 txctl;

		if (((freq - 2192) % 5) == 0) {
			channelSel = ((freq - 672) * 2 - 3040) / 10;
			bModeSynth = 0;
		} else if (((freq - 2224) % 5) == 0) {
			channelSel = ((freq - 704) * 2 - 3040) / 10;
			bModeSynth = 1;
		} else {
			ath_err(common, "Invalid channel %u MHz\n", freq);
			return -EINVAL;
		}

		channelSel = (channelSel << 2) & 0xff;
		channelSel = ath9k_hw_reverse_bits(channelSel, 8);

		txctl = REG_READ(ah, AR_PHY_CCK_TX_CTRL);
		if (freq == 2484) {

			REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
				  txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
		} else {
			REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
				  txctl & ~AR_PHY_CCK_TX_CTRL_JAPAN);
		}

	} else if ((freq % 20) == 0 && freq >= 5120) {
		channelSel =
		    ath9k_hw_reverse_bits(((freq - 4800) / 20 << 2), 8);
		aModeRefSel = ath9k_hw_reverse_bits(1, 2);
	} else if ((freq % 10) == 0) {
		channelSel =
		    ath9k_hw_reverse_bits(((freq - 4800) / 10 << 1), 8);
		if (AR_SREV_9100(ah) || AR_SREV_9160_10_OR_LATER(ah))
			aModeRefSel = ath9k_hw_reverse_bits(2, 2);
		else
			aModeRefSel = ath9k_hw_reverse_bits(1, 2);
	} else if ((freq % 5) == 0) {
		channelSel = ath9k_hw_reverse_bits((freq - 4800) / 5, 8);
		aModeRefSel = ath9k_hw_reverse_bits(1, 2);
	} else {
		ath_err(common, "Invalid channel %u MHz\n", freq);
		return -EINVAL;
	}

	ar5008_hw_force_bias(ah, freq);

	reg32 =
	    (channelSel << 8) | (aModeRefSel << 2) | (bModeSynth << 1) |
	    (1 << 5) | 0x1;

	REG_WRITE(ah, AR_PHY(0x37), reg32);

	ah->curchan = chan;

	return 0;
}

void ar5008_hw_cmn_spur_mitigate(struct ath_hw *ah,
			  struct ath9k_channel *chan, int bin)
{
	int cur_bin;
	int upper, lower, cur_vit_mask;
	int i;
	int8_t mask_m[123] = {0};
	int8_t mask_p[123] = {0};
	int8_t mask_amt;
	int tmp_mask;
	static const int pilot_mask_reg[4] = {
		AR_PHY_TIMING7, AR_PHY_TIMING8,
		AR_PHY_PILOT_MASK_01_30, AR_PHY_PILOT_MASK_31_60
	};
	static const int chan_mask_reg[4] = {
		AR_PHY_TIMING9, AR_PHY_TIMING10,
		AR_PHY_CHANNEL_MASK_01_30, AR_PHY_CHANNEL_MASK_31_60
	};
	static const int inc[4] = { 0, 100, 0, 0 };

	cur_bin = -6000;
	upper = bin + 100;
	lower = bin - 100;

	for (i = 0; i < 4; i++) {
		int pilot_mask = 0;
		int chan_mask = 0;
		int bp = 0;

		for (bp = 0; bp < 30; bp++) {
			if ((cur_bin > lower) && (cur_bin < upper)) {
				pilot_mask = pilot_mask | 0x1 << bp;
				chan_mask = chan_mask | 0x1 << bp;
			}
			cur_bin += 100;
		}
		cur_bin += inc[i];
		REG_WRITE(ah, pilot_mask_reg[i], pilot_mask);
		REG_WRITE(ah, chan_mask_reg[i], chan_mask);
	}

	cur_vit_mask = 6100;
	upper = bin + 120;
	lower = bin - 120;

	for (i = 0; i < ARRAY_SIZE(mask_m); i++) {
		if ((cur_vit_mask > lower) && (cur_vit_mask < upper)) {
			/* workaround for gcc bug #37014 */
			volatile int tmp_v = abs(cur_vit_mask - bin);

			if (tmp_v < 75)
				mask_amt = 1;
			else
				mask_amt = 0;
			if (cur_vit_mask < 0)
				mask_m[abs(cur_vit_mask / 100)] = mask_amt;
			else
				mask_p[cur_vit_mask / 100] = mask_amt;
		}
		cur_vit_mask -= 100;
	}

	tmp_mask = (mask_m[46] << 30) | (mask_m[47] << 28)
		| (mask_m[48] << 26) | (mask_m[49] << 24)
		| (mask_m[50] << 22) | (mask_m[51] << 20)
		| (mask_m[52] << 18) | (mask_m[53] << 16)
		| (mask_m[54] << 14) | (mask_m[55] << 12)
		| (mask_m[56] << 10) | (mask_m[57] << 8)
		| (mask_m[58] << 6) | (mask_m[59] << 4)
		| (mask_m[60] << 2) | (mask_m[61] << 0);
	REG_WRITE(ah, AR_PHY_BIN_MASK_1, tmp_mask);
	REG_WRITE(ah, AR_PHY_VIT_MASK2_M_46_61, tmp_mask);

	tmp_mask = (mask_m[31] << 28)
		| (mask_m[32] << 26) | (mask_m[33] << 24)
		| (mask_m[34] << 22) | (mask_m[35] << 20)
		| (mask_m[36] << 18) | (mask_m[37] << 16)
		| (mask_m[48] << 14) | (mask_m[39] << 12)
		| (mask_m[40] << 10) | (mask_m[41] << 8)
		| (mask_m[42] << 6) | (mask_m[43] << 4)
		| (mask_m[44] << 2) | (mask_m[45] << 0);
	REG_WRITE(ah, AR_PHY_BIN_MASK_2, tmp_mask);
	REG_WRITE(ah, AR_PHY_MASK2_M_31_45, tmp_mask);

	tmp_mask = (mask_m[16] << 30) | (mask_m[16] << 28)
		| (mask_m[18] << 26) | (mask_m[18] << 24)
		| (mask_m[20] << 22) | (mask_m[20] << 20)
		| (mask_m[22] << 18) | (mask_m[22] << 16)
		| (mask_m[24] << 14) | (mask_m[24] << 12)
		| (mask_m[25] << 10) | (mask_m[26] << 8)
		| (mask_m[27] << 6) | (mask_m[28] << 4)
		| (mask_m[29] << 2) | (mask_m[30] << 0);
	REG_WRITE(ah, AR_PHY_BIN_MASK_3, tmp_mask);
	REG_WRITE(ah, AR_PHY_MASK2_M_16_30, tmp_mask);

	tmp_mask = (mask_m[0] << 30) | (mask_m[1] << 28)
		| (mask_m[2] << 26) | (mask_m[3] << 24)
		| (mask_m[4] << 22) | (mask_m[5] << 20)
		| (mask_m[6] << 18) | (mask_m[7] << 16)
		| (mask_m[8] << 14) | (mask_m[9] << 12)
		| (mask_m[10] << 10) | (mask_m[11] << 8)
		| (mask_m[12] << 6) | (mask_m[13] << 4)
		| (mask_m[14] << 2) | (mask_m[15] << 0);
	REG_WRITE(ah, AR_PHY_MASK_CTL, tmp_mask);
	REG_WRITE(ah, AR_PHY_MASK2_M_00_15, tmp_mask);

	tmp_mask = (mask_p[15] << 28)
		| (mask_p[14] << 26) | (mask_p[13] << 24)
		| (mask_p[12] << 22) | (mask_p[11] << 20)
		| (mask_p[10] << 18) | (mask_p[9] << 16)
		| (mask_p[8] << 14) | (mask_p[7] << 12)
		| (mask_p[6] << 10) | (mask_p[5] << 8)
		| (mask_p[4] << 6) | (mask_p[3] << 4)
		| (mask_p[2] << 2) | (mask_p[1] << 0);
	REG_WRITE(ah, AR_PHY_BIN_MASK2_1, tmp_mask);
	REG_WRITE(ah, AR_PHY_MASK2_P_15_01, tmp_mask);

	tmp_mask = (mask_p[30] << 28)
		| (mask_p[29] << 26) | (mask_p[28] << 24)
		| (mask_p[27] << 22) | (mask_p[26] << 20)
		| (mask_p[25] << 18) | (mask_p[24] << 16)
		| (mask_p[23] << 14) | (mask_p[22] << 12)
		| (mask_p[21] << 10) | (mask_p[20] << 8)
		| (mask_p[19] << 6) | (mask_p[18] << 4)
		| (mask_p[17] << 2) | (mask_p[16] << 0);
	REG_WRITE(ah, AR_PHY_BIN_MASK2_2, tmp_mask);
	REG_WRITE(ah, AR_PHY_MASK2_P_30_16, tmp_mask);

	tmp_mask = (mask_p[45] << 28)
		| (mask_p[44] << 26) | (mask_p[43] << 24)
		| (mask_p[42] << 22) | (mask_p[41] << 20)
		| (mask_p[40] << 18) | (mask_p[39] << 16)
		| (mask_p[38] << 14) | (mask_p[37] << 12)
		| (mask_p[36] << 10) | (mask_p[35] << 8)
		| (mask_p[34] << 6) | (mask_p[33] << 4)
		| (mask_p[32] << 2) | (mask_p[31] << 0);
	REG_WRITE(ah, AR_PHY_BIN_MASK2_3, tmp_mask);
	REG_WRITE(ah, AR_PHY_MASK2_P_45_31, tmp_mask);

	tmp_mask = (mask_p[61] << 30) | (mask_p[60] << 28)
		| (mask_p[59] << 26) | (mask_p[58] << 24)
		| (mask_p[57] << 22) | (mask_p[56] << 20)
		| (mask_p[55] << 18) | (mask_p[54] << 16)
		| (mask_p[53] << 14) | (mask_p[52] << 12)
		| (mask_p[51] << 10) | (mask_p[50] << 8)
		| (mask_p[49] << 6) | (mask_p[48] << 4)
		| (mask_p[47] << 2) | (mask_p[46] << 0);
	REG_WRITE(ah, AR_PHY_BIN_MASK2_4, tmp_mask);
	REG_WRITE(ah, AR_PHY_MASK2_P_61_45, tmp_mask);
}

/**
 * ar5008_hw_spur_mitigate - convert baseband spur frequency for external radios
 * @ah: atheros hardware structure
 * @chan:
 *
 * For non single-chip solutions. Converts to baseband spur frequency given the
 * input channel frequency and compute register settings below.
 */
static void ar5008_hw_spur_mitigate(struct ath_hw *ah,
				    struct ath9k_channel *chan)
{
	int bb_spur = AR_NO_SPUR;
	int bin;
	int spur_freq_sd;
	int spur_delta_phase;
	int denominator;
	int tmp, new;
	int i;

	int cur_bb_spur;
	bool is2GHz = IS_CHAN_2GHZ(chan);

	for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
		cur_bb_spur = ah->eep_ops->get_spur_channel(ah, i, is2GHz);
		if (AR_NO_SPUR == cur_bb_spur)
			break;
		cur_bb_spur = cur_bb_spur - (chan->channel * 10);
		if ((cur_bb_spur > -95) && (cur_bb_spur < 95)) {
			bb_spur = cur_bb_spur;
			break;
		}
	}

	if (AR_NO_SPUR == bb_spur)
		return;

	bin = bb_spur * 32;

	tmp = REG_READ(ah, AR_PHY_TIMING_CTRL4(0));
	new = tmp | (AR_PHY_TIMING_CTRL4_ENABLE_SPUR_RSSI |
		     AR_PHY_TIMING_CTRL4_ENABLE_SPUR_FILTER |
		     AR_PHY_TIMING_CTRL4_ENABLE_CHAN_MASK |
		     AR_PHY_TIMING_CTRL4_ENABLE_PILOT_MASK);

	REG_WRITE(ah, AR_PHY_TIMING_CTRL4(0), new);

	new = (AR_PHY_SPUR_REG_MASK_RATE_CNTL |
	       AR_PHY_SPUR_REG_ENABLE_MASK_PPM |
	       AR_PHY_SPUR_REG_MASK_RATE_SELECT |
	       AR_PHY_SPUR_REG_ENABLE_VIT_SPUR_RSSI |
	       SM(SPUR_RSSI_THRESH, AR_PHY_SPUR_REG_SPUR_RSSI_THRESH));
	REG_WRITE(ah, AR_PHY_SPUR_REG, new);

	spur_delta_phase = ((bb_spur * 524288) / 100) &
		AR_PHY_TIMING11_SPUR_DELTA_PHASE;

	denominator = IS_CHAN_2GHZ(chan) ? 440 : 400;
	spur_freq_sd = ((bb_spur * 2048) / denominator) & 0x3ff;

	new = (AR_PHY_TIMING11_USE_SPUR_IN_AGC |
	       SM(spur_freq_sd, AR_PHY_TIMING11_SPUR_FREQ_SD) |
	       SM(spur_delta_phase, AR_PHY_TIMING11_SPUR_DELTA_PHASE));
	REG_WRITE(ah, AR_PHY_TIMING11, new);

	ar5008_hw_cmn_spur_mitigate(ah, chan, bin);
}

/**
 * ar5008_hw_rf_alloc_ext_banks - allocates banks for external radio programming
 * @ah: atheros hardware structure
 *
 * Only required for older devices with external AR2133/AR5133 radios.
 */
static int ar5008_hw_rf_alloc_ext_banks(struct ath_hw *ah)
{
	int size = ah->iniBank6.ia_rows * sizeof(u32);

	if (AR_SREV_9280_20_OR_LATER(ah))
	    return 0;

	ah->analogBank6Data = devm_kzalloc(ah->dev, size, GFP_KERNEL);
	if (!ah->analogBank6Data)
		return -ENOMEM;

	return 0;
}


/* *
 * ar5008_hw_set_rf_regs - programs rf registers based on EEPROM
 * @ah: atheros hardware structure
 * @chan:
 * @modesIndex:
 *
 * Used for the external AR2133/AR5133 radios.
 *
 * Reads the EEPROM header info from the device structure and programs
 * all rf registers. This routine requires access to the analog
 * rf device. This is not required for single-chip devices.
 */
static bool ar5008_hw_set_rf_regs(struct ath_hw *ah,
				  struct ath9k_channel *chan,
				  u16 modesIndex)
{
	u32 eepMinorRev;
	u32 ob5GHz = 0, db5GHz = 0;
	u32 ob2GHz = 0, db2GHz = 0;
	int regWrites = 0;
	int i;

	/*
	 * Software does not need to program bank data
	 * for single chip devices, that is AR9280 or anything
	 * after that.
	 */
	if (AR_SREV_9280_20_OR_LATER(ah))
		return true;

	/* Setup rf parameters */
	eepMinorRev = ah->eep_ops->get_eeprom_rev(ah);

	for (i = 0; i < ah->iniBank6.ia_rows; i++)
		ah->analogBank6Data[i] = INI_RA(&ah->iniBank6, i, modesIndex);

	/* Only the 5 or 2 GHz OB/DB need to be set for a mode */
	if (eepMinorRev >= 2) {
		if (IS_CHAN_2GHZ(chan)) {
			ob2GHz = ah->eep_ops->get_eeprom(ah, EEP_OB_2);
			db2GHz = ah->eep_ops->get_eeprom(ah, EEP_DB_2);
			ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data,
						       ob2GHz, 3, 197, 0);
			ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data,
						       db2GHz, 3, 194, 0);
		} else {
			ob5GHz = ah->eep_ops->get_eeprom(ah, EEP_OB_5);
			db5GHz = ah->eep_ops->get_eeprom(ah, EEP_DB_5);
			ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data,
						       ob5GHz, 3, 203, 0);
			ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data,
						       db5GHz, 3, 200, 0);
		}
	}

	/* Write Analog registers */
	REG_WRITE_ARRAY(&bank0, 1, regWrites);
	REG_WRITE_ARRAY(&bank1, 1, regWrites);
	REG_WRITE_ARRAY(&bank2, 1, regWrites);
	REG_WRITE_ARRAY(&bank3, modesIndex, regWrites);
	ar5008_write_bank6(ah, &regWrites);
	REG_WRITE_ARRAY(&bank7, 1, regWrites);

	return true;
}

static void ar5008_hw_init_bb(struct ath_hw *ah,
			      struct ath9k_channel *chan)
{
	u32 synthDelay;

	synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;

	REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);

	ath9k_hw_synth_delay(ah, chan, synthDelay);
}

static void ar5008_hw_init_chain_masks(struct ath_hw *ah)
{
	int rx_chainmask, tx_chainmask;

	rx_chainmask = ah->rxchainmask;
	tx_chainmask = ah->txchainmask;


	switch (rx_chainmask) {
	case 0x5:
		REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
			    AR_PHY_SWAP_ALT_CHAIN);
		/* fall through */
	case 0x3:
		if (ah->hw_version.macVersion == AR_SREV_REVISION_5416_10) {
			REG_WRITE(ah, AR_PHY_RX_CHAINMASK, 0x7);
			REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, 0x7);
			break;
		}
		/* fall through */
	case 0x1:
	case 0x2:
	case 0x7:
		ENABLE_REGWRITE_BUFFER(ah);
		REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
		REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
		break;
	default:
		ENABLE_REGWRITE_BUFFER(ah);
		break;
	}

	REG_WRITE(ah, AR_SELFGEN_MASK, tx_chainmask);

	REGWRITE_BUFFER_FLUSH(ah);

	if (tx_chainmask == 0x5) {
		REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
			    AR_PHY_SWAP_ALT_CHAIN);
	}
	if (AR_SREV_9100(ah))
		REG_WRITE(ah, AR_PHY_ANALOG_SWAP,
			  REG_READ(ah, AR_PHY_ANALOG_SWAP) | 0x00000001);
}

static void ar5008_hw_override_ini(struct ath_hw *ah,
				   struct ath9k_channel *chan)
{
	u32 val;

	/*
	 * Set the RX_ABORT and RX_DIS and clear if off only after
	 * RXE is set for MAC. This prevents frames with corrupted
	 * descriptor status.
	 */
	REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));

	if (AR_SREV_9280_20_OR_LATER(ah)) {
		/*
		 * For AR9280 and above, there is a new feature that allows
		 * Multicast search based on both MAC Address and Key ID.
		 * By default, this feature is enabled. But since the driver
		 * is not using this feature, we switch it off; otherwise
		 * multicast search based on MAC addr only will fail.
		 */
		val = REG_READ(ah, AR_PCU_MISC_MODE2) &
			(~AR_ADHOC_MCAST_KEYID_ENABLE);

		if (!AR_SREV_9271(ah))
			val &= ~AR_PCU_MISC_MODE2_HWWAR1;

		if (AR_SREV_9287_11_OR_LATER(ah))
			val = val & (~AR_PCU_MISC_MODE2_HWWAR2);

		val |= AR_PCU_MISC_MODE2_CFP_IGNORE;

		REG_WRITE(ah, AR_PCU_MISC_MODE2, val);
	}

	if (AR_SREV_9280_20_OR_LATER(ah))
		return;
	/*
	 * Disable BB clock gating
	 * Necessary to avoid issues on AR5416 2.0
	 */
	REG_WRITE(ah, 0x9800 + (651 << 2), 0x11);

	/*
	 * Disable RIFS search on some chips to avoid baseband
	 * hang issues.
	 */
	if (AR_SREV_9100(ah) || AR_SREV_9160(ah)) {
		val = REG_READ(ah, AR_PHY_HEAVY_CLIP_FACTOR_RIFS);
		val &= ~AR_PHY_RIFS_INIT_DELAY;
		REG_WRITE(ah, AR_PHY_HEAVY_CLIP_FACTOR_RIFS, val);
	}
}

static void ar5008_hw_set_channel_regs(struct ath_hw *ah,
				       struct ath9k_channel *chan)
{
	u32 phymode;
	u32 enableDacFifo = 0;

	if (AR_SREV_9285_12_OR_LATER(ah))
		enableDacFifo = (REG_READ(ah, AR_PHY_TURBO) &
					 AR_PHY_FC_ENABLE_DAC_FIFO);

	phymode = AR_PHY_FC_HT_EN | AR_PHY_FC_SHORT_GI_40
		| AR_PHY_FC_SINGLE_HT_LTF1 | AR_PHY_FC_WALSH | enableDacFifo;

	if (IS_CHAN_HT40(chan)) {
		phymode |= AR_PHY_FC_DYN2040_EN;

		if (IS_CHAN_HT40PLUS(chan))
			phymode |= AR_PHY_FC_DYN2040_PRI_CH;

	}
	ENABLE_REGWRITE_BUFFER(ah);
	REG_WRITE(ah, AR_PHY_TURBO, phymode);

	/* This function do only REG_WRITE, so
	 * we can include it to REGWRITE_BUFFER. */
	ath9k_hw_set11nmac2040(ah, chan);

	REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
	REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);

	REGWRITE_BUFFER_FLUSH(ah);
}


static int ar5008_hw_process_ini(struct ath_hw *ah,
				 struct ath9k_channel *chan)
{
	struct ath_common *common = ath9k_hw_common(ah);
	int i, regWrites = 0;
	u32 modesIndex, freqIndex;

	if (IS_CHAN_5GHZ(chan)) {
		freqIndex = 1;
		modesIndex = IS_CHAN_HT40(chan) ? 2 : 1;
	} else {
		freqIndex = 2;
		modesIndex = IS_CHAN_HT40(chan) ? 3 : 4;
	}

	/*
	 * Set correct baseband to analog shift setting to
	 * access analog chips.
	 */
	REG_WRITE(ah, AR_PHY(0), 0x00000007);

	/* Write ADDAC shifts */
	REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_EXTERNAL_RADIO);
	if (ah->eep_ops->set_addac)
		ah->eep_ops->set_addac(ah, chan);

	REG_WRITE_ARRAY(&ah->iniAddac, 1, regWrites);
	REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_INTERNAL_ADDAC);

	ENABLE_REGWRITE_BUFFER(ah);

	for (i = 0; i < ah->iniModes.ia_rows; i++) {
		u32 reg = INI_RA(&ah->iniModes, i, 0);
		u32 val = INI_RA(&ah->iniModes, i, modesIndex);

		if (reg == AR_AN_TOP2 && ah->need_an_top2_fixup)
			val &= ~AR_AN_TOP2_PWDCLKIND;

		REG_WRITE(ah, reg, val);

		if (reg >= 0x7800 && reg < 0x78a0
		    && ah->config.analog_shiftreg
		    && (common->bus_ops->ath_bus_type != ATH_USB)) {
			udelay(100);
		}

		DO_DELAY(regWrites);
	}

	REGWRITE_BUFFER_FLUSH(ah);

	if (AR_SREV_9280(ah) || AR_SREV_9287_11_OR_LATER(ah))
		REG_WRITE_ARRAY(&ah->iniModesRxGain, modesIndex, regWrites);

	if (AR_SREV_9280(ah) || AR_SREV_9285_12_OR_LATER(ah) ||
	    AR_SREV_9287_11_OR_LATER(ah))
		REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);

	if (AR_SREV_9271_10(ah)) {
		REG_SET_BIT(ah, AR_PHY_SPECTRAL_SCAN, AR_PHY_SPECTRAL_SCAN_ENA);
		REG_RMW_FIELD(ah, AR_PHY_RF_CTL3, AR_PHY_TX_END_TO_ADC_ON, 0xa);
	}

	ENABLE_REGWRITE_BUFFER(ah);

	/* Write common array parameters */
	for (i = 0; i < ah->iniCommon.ia_rows; i++) {
		u32 reg = INI_RA(&ah->iniCommon, i, 0);
		u32 val = INI_RA(&ah->iniCommon, i, 1);

		REG_WRITE(ah, reg, val);

		if (reg >= 0x7800 && reg < 0x78a0
		    && ah->config.analog_shiftreg
		    && (common->bus_ops->ath_bus_type != ATH_USB)) {
			udelay(100);
		}

		DO_DELAY(regWrites);
	}

	REGWRITE_BUFFER_FLUSH(ah);

	REG_WRITE_ARRAY(&ah->iniBB_RfGain, freqIndex, regWrites);

	if (IS_CHAN_A_FAST_CLOCK(ah, chan))
		REG_WRITE_ARRAY(&ah->iniModesFastClock, modesIndex,
				regWrites);

	ar5008_hw_override_ini(ah, chan);
	ar5008_hw_set_channel_regs(ah, chan);
	ar5008_hw_init_chain_masks(ah);
	ath9k_olc_init(ah);
	ath9k_hw_apply_txpower(ah, chan, false);

	/* Write analog registers */
	if (!ath9k_hw_set_rf_regs(ah, chan, freqIndex)) {
		ath_err(ath9k_hw_common(ah), "ar5416SetRfRegs failed\n");
		return -EIO;
	}

	return 0;
}

static void ar5008_hw_set_rfmode(struct ath_hw *ah, struct ath9k_channel *chan)
{
	u32 rfMode = 0;

	if (chan == NULL)
		return;

	if (IS_CHAN_2GHZ(chan))
		rfMode |= AR_PHY_MODE_DYNAMIC;
	else
		rfMode |= AR_PHY_MODE_OFDM;

	if (!AR_SREV_9280_20_OR_LATER(ah))
		rfMode |= (IS_CHAN_5GHZ(chan)) ?
			AR_PHY_MODE_RF5GHZ : AR_PHY_MODE_RF2GHZ;

	if (IS_CHAN_A_FAST_CLOCK(ah, chan))
		rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);

	REG_WRITE(ah, AR_PHY_MODE, rfMode);
}

static void ar5008_hw_mark_phy_inactive(struct ath_hw *ah)
{
	REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
}

static void ar5008_hw_set_delta_slope(struct ath_hw *ah,
				      struct ath9k_channel *chan)
{
	u32 coef_scaled, ds_coef_exp, ds_coef_man;
	u32 clockMhzScaled = 0x64000000;
	struct chan_centers centers;

	if (IS_CHAN_HALF_RATE(chan))
		clockMhzScaled = clockMhzScaled >> 1;
	else if (IS_CHAN_QUARTER_RATE(chan))
		clockMhzScaled = clockMhzScaled >> 2;

	ath9k_hw_get_channel_centers(ah, chan, &centers);
	coef_scaled = clockMhzScaled / centers.synth_center;

	ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
				      &ds_coef_exp);

	REG_RMW_FIELD(ah, AR_PHY_TIMING3,
		      AR_PHY_TIMING3_DSC_MAN, ds_coef_man);
	REG_RMW_FIELD(ah, AR_PHY_TIMING3,
		      AR_PHY_TIMING3_DSC_EXP, ds_coef_exp);

	coef_scaled = (9 * coef_scaled) / 10;

	ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
				      &ds_coef_exp);

	REG_RMW_FIELD(ah, AR_PHY_HALFGI,
		      AR_PHY_HALFGI_DSC_MAN, ds_coef_man);
	REG_RMW_FIELD(ah, AR_PHY_HALFGI,
		      AR_PHY_HALFGI_DSC_EXP, ds_coef_exp);
}

static bool ar5008_hw_rfbus_req(struct ath_hw *ah)
{
	REG_WRITE(ah, AR_PHY_RFBUS_REQ, AR_PHY_RFBUS_REQ_EN);
	return ath9k_hw_wait(ah, AR_PHY_RFBUS_GRANT, AR_PHY_RFBUS_GRANT_EN,
			   AR_PHY_RFBUS_GRANT_EN, AH_WAIT_TIMEOUT);
}

static void ar5008_hw_rfbus_done(struct ath_hw *ah)
{
	u32 synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;

	ath9k_hw_synth_delay(ah, ah->curchan, synthDelay);

	REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0);
}

static void ar5008_restore_chainmask(struct ath_hw *ah)
{
	int rx_chainmask = ah->rxchainmask;

	if ((rx_chainmask == 0x5) || (rx_chainmask == 0x3)) {
		REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
		REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
	}
}

static u32 ar9160_hw_compute_pll_control(struct ath_hw *ah,
					 struct ath9k_channel *chan)
{
	u32 pll;

	pll = SM(0x5, AR_RTC_9160_PLL_REFDIV);

	if (chan && IS_CHAN_HALF_RATE(chan))
		pll |= SM(0x1, AR_RTC_9160_PLL_CLKSEL);
	else if (chan && IS_CHAN_QUARTER_RATE(chan))
		pll |= SM(0x2, AR_RTC_9160_PLL_CLKSEL);

	if (chan && IS_CHAN_5GHZ(chan))
		pll |= SM(0x50, AR_RTC_9160_PLL_DIV);
	else
		pll |= SM(0x58, AR_RTC_9160_PLL_DIV);

	return pll;
}

static u32 ar5008_hw_compute_pll_control(struct ath_hw *ah,
					 struct ath9k_channel *chan)
{
	u32 pll;

	pll = AR_RTC_PLL_REFDIV_5 | AR_RTC_PLL_DIV2;

	if (chan && IS_CHAN_HALF_RATE(chan))
		pll |= SM(0x1, AR_RTC_PLL_CLKSEL);
	else if (chan && IS_CHAN_QUARTER_RATE(chan))
		pll |= SM(0x2, AR_RTC_PLL_CLKSEL);

	if (chan && IS_CHAN_5GHZ(chan))
		pll |= SM(0xa, AR_RTC_PLL_DIV);
	else
		pll |= SM(0xb, AR_RTC_PLL_DIV);

	return pll;
}

static bool ar5008_hw_ani_control_new(struct ath_hw *ah,
				      enum ath9k_ani_cmd cmd,
				      int param)
{
	struct ath_common *common = ath9k_hw_common(ah);
	struct ath9k_channel *chan = ah->curchan;
	struct ar5416AniState *aniState = &ah->ani;
	s32 value;

	switch (cmd & ah->ani_function) {
	case ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION:{
		/*
		 * on == 1 means ofdm weak signal detection is ON
		 * on == 1 is the default, for less noise immunity
		 *
		 * on == 0 means ofdm weak signal detection is OFF
		 * on == 0 means more noise imm
		 */
		u32 on = param ? 1 : 0;
		/*
		 * make register setting for default
		 * (weak sig detect ON) come from INI file
		 */
		int m1ThreshLow = on ?
			aniState->iniDef.m1ThreshLow : m1ThreshLow_off;
		int m2ThreshLow = on ?
			aniState->iniDef.m2ThreshLow : m2ThreshLow_off;
		int m1Thresh = on ?
			aniState->iniDef.m1Thresh : m1Thresh_off;
		int m2Thresh = on ?
			aniState->iniDef.m2Thresh : m2Thresh_off;
		int m2CountThr = on ?
			aniState->iniDef.m2CountThr : m2CountThr_off;
		int m2CountThrLow = on ?
			aniState->iniDef.m2CountThrLow : m2CountThrLow_off;
		int m1ThreshLowExt = on ?
			aniState->iniDef.m1ThreshLowExt : m1ThreshLowExt_off;
		int m2ThreshLowExt = on ?
			aniState->iniDef.m2ThreshLowExt : m2ThreshLowExt_off;
		int m1ThreshExt = on ?
			aniState->iniDef.m1ThreshExt : m1ThreshExt_off;
		int m2ThreshExt = on ?
			aniState->iniDef.m2ThreshExt : m2ThreshExt_off;

		REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
			      AR_PHY_SFCORR_LOW_M1_THRESH_LOW,
			      m1ThreshLow);
		REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
			      AR_PHY_SFCORR_LOW_M2_THRESH_LOW,
			      m2ThreshLow);
		REG_RMW_FIELD(ah, AR_PHY_SFCORR,
			      AR_PHY_SFCORR_M1_THRESH, m1Thresh);
		REG_RMW_FIELD(ah, AR_PHY_SFCORR,
			      AR_PHY_SFCORR_M2_THRESH, m2Thresh);
		REG_RMW_FIELD(ah, AR_PHY_SFCORR,
			      AR_PHY_SFCORR_M2COUNT_THR, m2CountThr);
		REG_RMW_FIELD(ah, AR_PHY_SFCORR_LOW,
			      AR_PHY_SFCORR_LOW_M2COUNT_THR_LOW,
			      m2CountThrLow);

		REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
			      AR_PHY_SFCORR_EXT_M1_THRESH_LOW, m1ThreshLowExt);
		REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
			      AR_PHY_SFCORR_EXT_M2_THRESH_LOW, m2ThreshLowExt);
		REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
			      AR_PHY_SFCORR_EXT_M1_THRESH, m1ThreshExt);
		REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
			      AR_PHY_SFCORR_EXT_M2_THRESH, m2ThreshExt);

		if (on)
			REG_SET_BIT(ah, AR_PHY_SFCORR_LOW,
				    AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);
		else
			REG_CLR_BIT(ah, AR_PHY_SFCORR_LOW,
				    AR_PHY_SFCORR_LOW_USE_SELF_CORR_LOW);

		if (on != aniState->ofdmWeakSigDetect) {
			ath_dbg(common, ANI,
				"** ch %d: ofdm weak signal: %s=>%s\n",
				chan->channel,
				aniState->ofdmWeakSigDetect ?
				"on" : "off",
				on ? "on" : "off");
			if (on)
				ah->stats.ast_ani_ofdmon++;
			else
				ah->stats.ast_ani_ofdmoff++;
			aniState->ofdmWeakSigDetect = on;
		}
		break;
	}
	case ATH9K_ANI_FIRSTEP_LEVEL:{
		u32 level = param;

		value = level * 2;
		REG_RMW_FIELD(ah, AR_PHY_FIND_SIG,
			      AR_PHY_FIND_SIG_FIRSTEP, value);
		REG_RMW_FIELD(ah, AR_PHY_FIND_SIG_LOW,
			      AR_PHY_FIND_SIG_FIRSTEP_LOW, value);

		if (level != aniState->firstepLevel) {
			ath_dbg(common, ANI,
				"** ch %d: level %d=>%d[def:%d] firstep[level]=%d ini=%d\n",
				chan->channel,
				aniState->firstepLevel,
				level,
				ATH9K_ANI_FIRSTEP_LVL,
				value,
				aniState->iniDef.firstep);
			ath_dbg(common, ANI,
				"** ch %d: level %d=>%d[def:%d] firstep_low[level]=%d ini=%d\n",
				chan->channel,
				aniState->firstepLevel,
				level,
				ATH9K_ANI_FIRSTEP_LVL,
				value,
				aniState->iniDef.firstepLow);
			if (level > aniState->firstepLevel)
				ah->stats.ast_ani_stepup++;
			else if (level < aniState->firstepLevel)
				ah->stats.ast_ani_stepdown++;
			aniState->firstepLevel = level;
		}
		break;
	}
	case ATH9K_ANI_SPUR_IMMUNITY_LEVEL:{
		u32 level = param;

		value = (level + 1) * 2;
		REG_RMW_FIELD(ah, AR_PHY_TIMING5,
			      AR_PHY_TIMING5_CYCPWR_THR1, value);

		REG_RMW_FIELD(ah, AR_PHY_EXT_CCA,
				  AR_PHY_EXT_TIMING5_CYCPWR_THR1, value - 1);

		if (level != aniState->spurImmunityLevel) {
			ath_dbg(common, ANI,
				"** ch %d: level %d=>%d[def:%d] cycpwrThr1[level]=%d ini=%d\n",
				chan->channel,
				aniState->spurImmunityLevel,
				level,
				ATH9K_ANI_SPUR_IMMUNE_LVL,
				value,
				aniState->iniDef.cycpwrThr1);
			ath_dbg(common, ANI,
				"** ch %d: level %d=>%d[def:%d] cycpwrThr1Ext[level]=%d ini=%d\n",
				chan->channel,
				aniState->spurImmunityLevel,
				level,
				ATH9K_ANI_SPUR_IMMUNE_LVL,
				value,
				aniState->iniDef.cycpwrThr1Ext);
			if (level > aniState->spurImmunityLevel)
				ah->stats.ast_ani_spurup++;
			else if (level < aniState->spurImmunityLevel)
				ah->stats.ast_ani_spurdown++;
			aniState->spurImmunityLevel = level;
		}
		break;
	}
	case ATH9K_ANI_MRC_CCK:
		/*
		 * You should not see this as AR5008, AR9001, AR9002
		 * does not have hardware support for MRC CCK.
		 */
		WARN_ON(1);
		break;
	default:
		ath_dbg(common, ANI, "invalid cmd %u\n", cmd);
		return false;
	}

	ath_dbg(common, ANI,
		"ANI parameters: SI=%d, ofdmWS=%s FS=%d MRCcck=%s listenTime=%d ofdmErrs=%d cckErrs=%d\n",
		aniState->spurImmunityLevel,
		aniState->ofdmWeakSigDetect ? "on" : "off",
		aniState->firstepLevel,
		aniState->mrcCCK ? "on" : "off",
		aniState->listenTime,
		aniState->ofdmPhyErrCount,
		aniState->cckPhyErrCount);
	return true;
}

static void ar5008_hw_do_getnf(struct ath_hw *ah,
			      int16_t nfarray[NUM_NF_READINGS])
{
	int16_t nf;

	nf = MS(REG_READ(ah, AR_PHY_CCA), AR_PHY_MINCCA_PWR);
	nfarray[0] = sign_extend32(nf, 8);

	nf = MS(REG_READ(ah, AR_PHY_CH1_CCA), AR_PHY_CH1_MINCCA_PWR);
	nfarray[1] = sign_extend32(nf, 8);

	nf = MS(REG_READ(ah, AR_PHY_CH2_CCA), AR_PHY_CH2_MINCCA_PWR);
	nfarray[2] = sign_extend32(nf, 8);

	if (!IS_CHAN_HT40(ah->curchan))
		return;

	nf = MS(REG_READ(ah, AR_PHY_EXT_CCA), AR_PHY_EXT_MINCCA_PWR);
	nfarray[3] = sign_extend32(nf, 8);

	nf = MS(REG_READ(ah, AR_PHY_CH1_EXT_CCA), AR_PHY_CH1_EXT_MINCCA_PWR);
	nfarray[4] = sign_extend32(nf, 8);

	nf = MS(REG_READ(ah, AR_PHY_CH2_EXT_CCA), AR_PHY_CH2_EXT_MINCCA_PWR);
	nfarray[5] = sign_extend32(nf, 8);
}

/*
 * Initialize the ANI register values with default (ini) values.
 * This routine is called during a (full) hardware reset after
 * all the registers are initialised from the INI.
 */
static void ar5008_hw_ani_cache_ini_regs(struct ath_hw *ah)
{
	struct ath_common *common = ath9k_hw_common(ah);
	struct ath9k_channel *chan = ah->curchan;
	struct ar5416AniState *aniState = &ah->ani;
	struct ath9k_ani_default *iniDef;
	u32 val;

	iniDef = &aniState->iniDef;

	ath_dbg(common, ANI, "ver %d.%d opmode %u chan %d Mhz\n",
		ah->hw_version.macVersion,
		ah->hw_version.macRev,
		ah->opmode,
		chan->channel);

	val = REG_READ(ah, AR_PHY_SFCORR);
	iniDef->m1Thresh = MS(val, AR_PHY_SFCORR_M1_THRESH);
	iniDef->m2Thresh = MS(val, AR_PHY_SFCORR_M2_THRESH);
	iniDef->m2CountThr = MS(val, AR_PHY_SFCORR_M2COUNT_THR);

	val = REG_READ(ah, AR_PHY_SFCORR_LOW);
	iniDef->m1ThreshLow = MS(val, AR_PHY_SFCORR_LOW_M1_THRESH_LOW);
	iniDef->m2ThreshLow = MS(val, AR_PHY_SFCORR_LOW_M2_THRESH_LOW);
	iniDef->m2CountThrLow = MS(val, AR_PHY_SFCORR_LOW_M2COUNT_THR_LOW);

	val = REG_READ(ah, AR_PHY_SFCORR_EXT);
	iniDef->m1ThreshExt = MS(val, AR_PHY_SFCORR_EXT_M1_THRESH);
	iniDef->m2ThreshExt = MS(val, AR_PHY_SFCORR_EXT_M2_THRESH);
	iniDef->m1ThreshLowExt = MS(val, AR_PHY_SFCORR_EXT_M1_THRESH_LOW);
	iniDef->m2ThreshLowExt = MS(val, AR_PHY_SFCORR_EXT_M2_THRESH_LOW);
	iniDef->firstep = REG_READ_FIELD(ah,
					 AR_PHY_FIND_SIG,
					 AR_PHY_FIND_SIG_FIRSTEP);
	iniDef->firstepLow = REG_READ_FIELD(ah,
					    AR_PHY_FIND_SIG_LOW,
					    AR_PHY_FIND_SIG_FIRSTEP_LOW);
	iniDef->cycpwrThr1 = REG_READ_FIELD(ah,
					    AR_PHY_TIMING5,
					    AR_PHY_TIMING5_CYCPWR_THR1);
	iniDef->cycpwrThr1Ext = REG_READ_FIELD(ah,
					       AR_PHY_EXT_CCA,
					       AR_PHY_EXT_TIMING5_CYCPWR_THR1);

	/* these levels just got reset to defaults by the INI */
	aniState->spurImmunityLevel = ATH9K_ANI_SPUR_IMMUNE_LVL;
	aniState->firstepLevel = ATH9K_ANI_FIRSTEP_LVL;
	aniState->ofdmWeakSigDetect = true;
	aniState->mrcCCK = false; /* not available on pre AR9003 */
}

static void ar5008_hw_set_nf_limits(struct ath_hw *ah)
{
	ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_5416_2GHZ;
	ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_5416_2GHZ;
	ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_5416_2GHZ;
	ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_5416_5GHZ;
	ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_5416_5GHZ;
	ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_5416_5GHZ;
}

static void ar5008_hw_set_radar_params(struct ath_hw *ah,
				       struct ath_hw_radar_conf *conf)
{
	u32 radar_0 = 0, radar_1;

	if (!conf) {
		REG_CLR_BIT(ah, AR_PHY_RADAR_0, AR_PHY_RADAR_0_ENA);
		return;
	}

	radar_0 |= AR_PHY_RADAR_0_ENA | AR_PHY_RADAR_0_FFT_ENA;
	radar_0 |= SM(conf->fir_power, AR_PHY_RADAR_0_FIRPWR);
	radar_0 |= SM(conf->radar_rssi, AR_PHY_RADAR_0_RRSSI);
	radar_0 |= SM(conf->pulse_height, AR_PHY_RADAR_0_HEIGHT);
	radar_0 |= SM(conf->pulse_rssi, AR_PHY_RADAR_0_PRSSI);
	radar_0 |= SM(conf->pulse_inband, AR_PHY_RADAR_0_INBAND);

	radar_1 = REG_READ(ah, AR_PHY_RADAR_1);
	radar_1 &= ~(AR_PHY_RADAR_1_MAXLEN | AR_PHY_RADAR_1_RELSTEP_THRESH |
		     AR_PHY_RADAR_1_RELPWR_THRESH);
	radar_1 |= AR_PHY_RADAR_1_MAX_RRSSI;
	radar_1 |= AR_PHY_RADAR_1_BLOCK_CHECK;
	radar_1 |= SM(conf->pulse_maxlen, AR_PHY_RADAR_1_MAXLEN);
	radar_1 |= SM(conf->pulse_inband_step, AR_PHY_RADAR_1_RELSTEP_THRESH);
	radar_1 |= SM(conf->radar_inband, AR_PHY_RADAR_1_RELPWR_THRESH);

	REG_WRITE(ah, AR_PHY_RADAR_0, radar_0);
	REG_WRITE(ah, AR_PHY_RADAR_1, radar_1);
	if (conf->ext_channel)
		REG_SET_BIT(ah, AR_PHY_RADAR_EXT, AR_PHY_RADAR_EXT_ENA);
	else
		REG_CLR_BIT(ah, AR_PHY_RADAR_EXT, AR_PHY_RADAR_EXT_ENA);
}

static void ar5008_hw_set_radar_conf(struct ath_hw *ah)
{
	struct ath_hw_radar_conf *conf = &ah->radar_conf;

	conf->fir_power = -33;
	conf->radar_rssi = 20;
	conf->pulse_height = 10;
	conf->pulse_rssi = 15;
	conf->pulse_inband = 15;
	conf->pulse_maxlen = 255;
	conf->pulse_inband_step = 12;
	conf->radar_inband = 8;
}

static void ar5008_hw_init_txpower_cck(struct ath_hw *ah, int16_t *rate_array)
{
#define CCK_DELTA(x) ((OLC_FOR_AR9280_20_LATER) ? max((x) - 2, 0) : (x))
	ah->tx_power[0] = CCK_DELTA(rate_array[rate1l]);
	ah->tx_power[1] = CCK_DELTA(min(rate_array[rate2l],
					rate_array[rate2s]));
	ah->tx_power[2] = CCK_DELTA(min(rate_array[rate5_5l],
					rate_array[rate5_5s]));
	ah->tx_power[3] = CCK_DELTA(min(rate_array[rate11l],
					rate_array[rate11s]));
#undef CCK_DELTA
}

static void ar5008_hw_init_txpower_ofdm(struct ath_hw *ah, int16_t *rate_array,
					int offset)
{
	int i, idx = 0;

	for (i = offset; i < offset + AR5008_OFDM_RATES; i++) {
		ah->tx_power[i] = rate_array[idx];
		idx++;
	}
}

static void ar5008_hw_init_txpower_ht(struct ath_hw *ah, int16_t *rate_array,
				      int ss_offset, int ds_offset,
				      bool is_40, int ht40_delta)
{
	int i, mcs_idx = (is_40) ? AR5008_HT40_SHIFT : AR5008_HT20_SHIFT;

	for (i = ss_offset; i < ss_offset + AR5008_HT_SS_RATES; i++) {
		ah->tx_power[i] = rate_array[mcs_idx] + ht40_delta;
		mcs_idx++;
	}
	memcpy(&ah->tx_power[ds_offset], &ah->tx_power[ss_offset],
	       AR5008_HT_SS_RATES);
}

void ar5008_hw_init_rate_txpower(struct ath_hw *ah, int16_t *rate_array,
				 struct ath9k_channel *chan, int ht40_delta)
{
	if (IS_CHAN_5GHZ(chan)) {
		ar5008_hw_init_txpower_ofdm(ah, rate_array,
					    AR5008_11NA_OFDM_SHIFT);
		if (IS_CHAN_HT20(chan) || IS_CHAN_HT40(chan)) {
			ar5008_hw_init_txpower_ht(ah, rate_array,
						  AR5008_11NA_HT_SS_SHIFT,
						  AR5008_11NA_HT_DS_SHIFT,
						  IS_CHAN_HT40(chan),
						  ht40_delta);
		}
	} else {
		ar5008_hw_init_txpower_cck(ah, rate_array);
		ar5008_hw_init_txpower_ofdm(ah, rate_array,
					    AR5008_11NG_OFDM_SHIFT);
		if (IS_CHAN_HT20(chan) || IS_CHAN_HT40(chan)) {
			ar5008_hw_init_txpower_ht(ah, rate_array,
						  AR5008_11NG_HT_SS_SHIFT,
						  AR5008_11NG_HT_DS_SHIFT,
						  IS_CHAN_HT40(chan),
						  ht40_delta);
		}
	}
}

int ar5008_hw_attach_phy_ops(struct ath_hw *ah)
{
	struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
	static const u32 ar5416_cca_regs[6] = {
		AR_PHY_CCA,
		AR_PHY_CH1_CCA,
		AR_PHY_CH2_CCA,
		AR_PHY_EXT_CCA,
		AR_PHY_CH1_EXT_CCA,
		AR_PHY_CH2_EXT_CCA
	};
	int ret;

	ret = ar5008_hw_rf_alloc_ext_banks(ah);
	if (ret)
	    return ret;

	priv_ops->rf_set_freq = ar5008_hw_set_channel;
	priv_ops->spur_mitigate_freq = ar5008_hw_spur_mitigate;

	priv_ops->set_rf_regs = ar5008_hw_set_rf_regs;
	priv_ops->set_channel_regs = ar5008_hw_set_channel_regs;
	priv_ops->init_bb = ar5008_hw_init_bb;
	priv_ops->process_ini = ar5008_hw_process_ini;
	priv_ops->set_rfmode = ar5008_hw_set_rfmode;
	priv_ops->mark_phy_inactive = ar5008_hw_mark_phy_inactive;
	priv_ops->set_delta_slope = ar5008_hw_set_delta_slope;
	priv_ops->rfbus_req = ar5008_hw_rfbus_req;
	priv_ops->rfbus_done = ar5008_hw_rfbus_done;
	priv_ops->restore_chainmask = ar5008_restore_chainmask;
	priv_ops->do_getnf = ar5008_hw_do_getnf;
	priv_ops->set_radar_params = ar5008_hw_set_radar_params;

	priv_ops->ani_control = ar5008_hw_ani_control_new;
	priv_ops->ani_cache_ini_regs = ar5008_hw_ani_cache_ini_regs;

	if (AR_SREV_9100(ah) || AR_SREV_9160_10_OR_LATER(ah))
		priv_ops->compute_pll_control = ar9160_hw_compute_pll_control;
	else
		priv_ops->compute_pll_control = ar5008_hw_compute_pll_control;

	ar5008_hw_set_nf_limits(ah);
	ar5008_hw_set_radar_conf(ah);
	memcpy(ah->nf_regs, ar5416_cca_regs, sizeof(ah->nf_regs));
	return 0;
}