drivers/net/wireless/ath/ath9k/ar5008_phy.c

/*
 * Copyright (c) 2008-2010 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"

/* All code below is for non single-chip solutions */

/**
 * 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_10_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_print(common, ATH_DBG_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 */
	REG_WRITE_RF_ARRAY(&ah->iniBank6, ah->analogBank6Data, reg_writes);
}

/**
 * ar5008_hw_set_channel - tune to a channel on the external AR2133/AR5133 radios
 * @ah: atheros hardware stucture
 * @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_print(common, ATH_DBG_FATAL,
				  "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_print(common, ATH_DBG_FATAL,
			  "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;
	ah->curchan_rad_index = -1;

	return 0;
}

/**
 * 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, cur_bin;
	int spur_freq_sd;
	int spur_delta_phase;
	int denominator;
	int upper, lower, cur_vit_mask;
	int tmp, new;
	int i;
	int pilot_mask_reg[4] = { AR_PHY_TIMING7, AR_PHY_TIMING8,
			  AR_PHY_PILOT_MASK_01_30, AR_PHY_PILOT_MASK_31_60
	};
	int chan_mask_reg[4] = { AR_PHY_TIMING9, AR_PHY_TIMING10,
			 AR_PHY_CHANNEL_MASK_01_30, AR_PHY_CHANNEL_MASK_31_60
	};
	int inc[4] = { 0, 100, 0, 0 };

	int8_t mask_m[123];
	int8_t mask_p[123];
	int8_t mask_amt;
	int tmp_mask;
	int cur_bb_spur;
	bool is2GHz = IS_CHAN_2GHZ(chan);

	memset(&mask_m, 0, sizeof(int8_t) * 123);
	memset(&mask_p, 0, sizeof(int8_t) * 123);

	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);

	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 < 123; 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_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)
{
#define ATH_ALLOC_BANK(bank, size) do { \
		bank = kzalloc((sizeof(u32) * size), GFP_KERNEL); \
		if (!bank) { \
			ath_print(common, ATH_DBG_FATAL, \
				  "Cannot allocate RF banks\n"); \
			return -ENOMEM; \
		} \
	} while (0);

	struct ath_common *common = ath9k_hw_common(ah);

	BUG_ON(AR_SREV_9280_10_OR_LATER(ah));

	ATH_ALLOC_BANK(ah->analogBank0Data, ah->iniBank0.ia_rows);
	ATH_ALLOC_BANK(ah->analogBank1Data, ah->iniBank1.ia_rows);
	ATH_ALLOC_BANK(ah->analogBank2Data, ah->iniBank2.ia_rows);
	ATH_ALLOC_BANK(ah->analogBank3Data, ah->iniBank3.ia_rows);
	ATH_ALLOC_BANK(ah->analogBank6Data, ah->iniBank6.ia_rows);
	ATH_ALLOC_BANK(ah->analogBank6TPCData, ah->iniBank6TPC.ia_rows);
	ATH_ALLOC_BANK(ah->analogBank7Data, ah->iniBank7.ia_rows);
	ATH_ALLOC_BANK(ah->addac5416_21,
		       ah->iniAddac.ia_rows * ah->iniAddac.ia_columns);
	ATH_ALLOC_BANK(ah->bank6Temp, ah->iniBank6.ia_rows);

	return 0;
#undef ATH_ALLOC_BANK
}


/**
 * ar5008_hw_rf_free_ext_banks - Free memory for analog bank scratch buffers
 * @ah: atheros hardware struture
 * For the external AR2133/AR5133 radios banks.
 */
static void ar5008_hw_rf_free_ext_banks(struct ath_hw *ah)
{
#define ATH_FREE_BANK(bank) do { \
		kfree(bank); \
		bank = NULL; \
	} while (0);

	BUG_ON(AR_SREV_9280_10_OR_LATER(ah));

	ATH_FREE_BANK(ah->analogBank0Data);
	ATH_FREE_BANK(ah->analogBank1Data);
	ATH_FREE_BANK(ah->analogBank2Data);
	ATH_FREE_BANK(ah->analogBank3Data);
	ATH_FREE_BANK(ah->analogBank6Data);
	ATH_FREE_BANK(ah->analogBank6TPCData);
	ATH_FREE_BANK(ah->analogBank7Data);
	ATH_FREE_BANK(ah->addac5416_21);
	ATH_FREE_BANK(ah->bank6Temp);

#undef ATH_FREE_BANK
}

/* *
 * 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;

	/*
	 * Software does not need to program bank data
	 * for single chip devices, that is AR9280 or anything
	 * after that.
	 */
	if (AR_SREV_9280_10_OR_LATER(ah))
		return true;

	/* Setup rf parameters */
	eepMinorRev = ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV);

	/* Setup Bank 0 Write */
	RF_BANK_SETUP(ah->analogBank0Data, &ah->iniBank0, 1);

	/* Setup Bank 1 Write */
	RF_BANK_SETUP(ah->analogBank1Data, &ah->iniBank1, 1);

	/* Setup Bank 2 Write */
	RF_BANK_SETUP(ah->analogBank2Data, &ah->iniBank2, 1);

	/* Setup Bank 6 Write */
	RF_BANK_SETUP(ah->analogBank3Data, &ah->iniBank3,
		      modesIndex);
	{
		int i;
		for (i = 0; i < ah->iniBank6TPC.ia_rows; i++) {
			ah->analogBank6Data[i] =
			    INI_RA(&ah->iniBank6TPC, 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);
		}
	}

	/* Setup Bank 7 Setup */
	RF_BANK_SETUP(ah->analogBank7Data, &ah->iniBank7, 1);

	/* Write Analog registers */
	REG_WRITE_RF_ARRAY(&ah->iniBank0, ah->analogBank0Data,
			   regWrites);
	REG_WRITE_RF_ARRAY(&ah->iniBank1, ah->analogBank1Data,
			   regWrites);
	REG_WRITE_RF_ARRAY(&ah->iniBank2, ah->analogBank2Data,
			   regWrites);
	REG_WRITE_RF_ARRAY(&ah->iniBank3, ah->analogBank3Data,
			   regWrites);
	REG_WRITE_RF_ARRAY(&ah->iniBank6TPC, ah->analogBank6Data,
			   regWrites);
	REG_WRITE_RF_ARRAY(&ah->iniBank7, ah->analogBank7Data,
			   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;
	if (IS_CHAN_B(chan))
		synthDelay = (4 * synthDelay) / 22;
	else
		synthDelay /= 10;

	REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);

	udelay(synthDelay + BASE_ACTIVATE_DELAY);
}

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);
	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;
		}
	case 0x1:
	case 0x2:
	case 0x7:
		REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
		REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
		break;
	default:
		break;
	}

	REG_WRITE(ah, AR_SELFGEN_MASK, tx_chainmask);
	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_10_OR_LATER(ah)) {
		val = REG_READ(ah, AR_PCU_MISC_MODE2);

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

		if (AR_SREV_9287_10_OR_LATER(ah))
			val = val & (~AR_PCU_MISC_MODE2_HWWAR2);

		REG_WRITE(ah, AR_PCU_MISC_MODE2, val);
	}

	if (!AR_SREV_5416_20_OR_LATER(ah) ||
	    AR_SREV_9280_10_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_10_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 ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
		    (chan->chanmode == CHANNEL_G_HT40PLUS))
			phymode |= AR_PHY_FC_DYN2040_PRI_CH;

	}
	REG_WRITE(ah, AR_PHY_TURBO, phymode);

	ath9k_hw_set11nmac2040(ah);

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


static int ar5008_hw_process_ini(struct ath_hw *ah,
				 struct ath9k_channel *chan)
{
	struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
	int i, regWrites = 0;
	struct ieee80211_channel *channel = chan->chan;
	u32 modesIndex, freqIndex;

	switch (chan->chanmode) {
	case CHANNEL_A:
	case CHANNEL_A_HT20:
		modesIndex = 1;
		freqIndex = 1;
		break;
	case CHANNEL_A_HT40PLUS:
	case CHANNEL_A_HT40MINUS:
		modesIndex = 2;
		freqIndex = 1;
		break;
	case CHANNEL_G:
	case CHANNEL_G_HT20:
	case CHANNEL_B:
		modesIndex = 4;
		freqIndex = 2;
		break;
	case CHANNEL_G_HT40PLUS:
	case CHANNEL_G_HT40MINUS:
		modesIndex = 3;
		freqIndex = 2;
		break;

	default:
		return -EINVAL;
	}

	if (AR_SREV_9287_12_OR_LATER(ah)) {
		/* Enable ASYNC FIFO */
		REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
				AR_MAC_PCU_ASYNC_FIFO_REG3_DATAPATH_SEL);
		REG_SET_BIT(ah, AR_PHY_MODE, AR_PHY_MODE_ASYNCFIFO);
		REG_CLR_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
				AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
		REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
				AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
	}

	/*
	 * 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);
	ah->eep_ops->set_addac(ah, chan);

	if (AR_SREV_5416_22_OR_LATER(ah)) {
		REG_WRITE_ARRAY(&ah->iniAddac, 1, regWrites);
	} else {
		struct ar5416IniArray temp;
		u32 addacSize =
			sizeof(u32) * ah->iniAddac.ia_rows *
			ah->iniAddac.ia_columns;

		/* For AR5416 2.0/2.1 */
		memcpy(ah->addac5416_21,
		       ah->iniAddac.ia_array, addacSize);

		/* override CLKDRV value at [row, column] = [31, 1] */
		(ah->addac5416_21)[31 * ah->iniAddac.ia_columns + 1] = 0;

		temp.ia_array = ah->addac5416_21;
		temp.ia_columns = ah->iniAddac.ia_columns;
		temp.ia_rows = ah->iniAddac.ia_rows;
		REG_WRITE_ARRAY(&temp, 1, regWrites);
	}

	REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_INTERNAL_ADDAC);

	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) {
			udelay(100);
		}

		DO_DELAY(regWrites);
	}

	if (AR_SREV_9280(ah) || AR_SREV_9287_10_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_10_OR_LATER(ah))
		REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);

	if (AR_SREV_9271_10(ah))
		REG_WRITE_ARRAY(&ah->iniModes_9271_1_0_only,
				modesIndex, regWrites);

	/* 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) {
			udelay(100);
		}

		DO_DELAY(regWrites);
	}

	if (AR_SREV_9271(ah)) {
		if (ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE) == 1)
			REG_WRITE_ARRAY(&ah->iniModes_high_power_tx_gain_9271,
					modesIndex, regWrites);
		else
			REG_WRITE_ARRAY(&ah->iniModes_normal_power_tx_gain_9271,
					modesIndex, regWrites);
	}

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

	if (AR_SREV_9280_20(ah) && IS_CHAN_A_5MHZ_SPACED(chan)) {
		REG_WRITE_ARRAY(&ah->iniModesAdditional, 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);

	/* Set TX power */
	ah->eep_ops->set_txpower(ah, chan,
				 ath9k_regd_get_ctl(regulatory, chan),
				 channel->max_antenna_gain * 2,
				 channel->max_power * 2,
				 min((u32) MAX_RATE_POWER,
				 (u32) regulatory->power_limit));

	/* Write analog registers */
	if (!ath9k_hw_set_rf_regs(ah, chan, freqIndex)) {
		ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
			  "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;

	rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
		? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;

	if (!AR_SREV_9280_10_OR_LATER(ah))
		rfMode |= (IS_CHAN_5GHZ(chan)) ?
			AR_PHY_MODE_RF5GHZ : AR_PHY_MODE_RF2GHZ;

	if ((AR_SREV_9280_20(ah) || AR_SREV_9300_20_OR_LATER(ah))
	    && IS_CHAN_A_5MHZ_SPACED(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;
	if (IS_CHAN_B(ah->curchan))
		synthDelay = (4 * synthDelay) / 22;
	else
		synthDelay /= 10;

	udelay(synthDelay + BASE_ACTIVATE_DELAY);

	REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0);
}

static void ar5008_hw_enable_rfkill(struct ath_hw *ah)
{
	REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL,
		    AR_GPIO_INPUT_EN_VAL_RFSILENT_BB);

	REG_CLR_BIT(ah, AR_GPIO_INPUT_MUX2,
		    AR_GPIO_INPUT_MUX2_RFSILENT);

	ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
	REG_SET_BIT(ah, AR_PHY_TEST, RFSILENT_BB);
}

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 void ar5008_set_diversity(struct ath_hw *ah, bool value)
{
	u32 v = REG_READ(ah, AR_PHY_CCK_DETECT);
	if (value)
		v |= AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
	else
		v &= ~AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
	REG_WRITE(ah, AR_PHY_CCK_DETECT, v);
}

void ar5008_hw_attach_phy_ops(struct ath_hw *ah)
{
	struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);

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

	priv_ops->rf_alloc_ext_banks = ar5008_hw_rf_alloc_ext_banks;
	priv_ops->rf_free_ext_banks = ar5008_hw_rf_free_ext_banks;
	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->enable_rfkill = ar5008_hw_enable_rfkill;
	priv_ops->restore_chainmask = ar5008_restore_chainmask;
	priv_ops->set_diversity = ar5008_set_diversity;
}