ath9k_ar5008_phy.c

Go to the documentation of this file.

/*
 * Copyright (c) 2008-2011 Atheros Communications Inc.
 *
 * Modified for iPXE by Scott K Logan <logans@cottsay.net> July 2011
 * Original from Linux kernel 3.0.1
 *
 * 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 <ipxe/malloc.h>
#include <ipxe/io.h>

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

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

static const int firstep_table[] =
/* level:  0   1   2   3   4   5   6   7   8  */
        { -4, -2,  0,  2,  4,  6,  8, 10, 12 }; /* lvl 0-8, default 2 */

static const int cycpwrThr1_table[] =
/* level:  0   1   2   3   4   5   6   7   8  */
        { -6, -4, -2,  0,  2,  4,  6,  8 };     /* lvl 0-7, default 3 */

/*
 * 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 void ar5008_rf_bank_setup(u32 *bank, struct ar5416IniArray *array,
                                 int col)
{
        unsigned int i;

        for (i = 0; i < array->ia_rows; i++)
                bank[i] = INI_RA(array, i, col);
}


#define REG_WRITE_RF_ARRAY(iniarray, regData, regWr) \
        ar5008_write_rf_array(ah, iniarray, regData, &(regWr))

static void ar5008_write_rf_array(struct ath_hw *ah, struct ar5416IniArray *array,
                                  u32 *data, unsigned int *writecnt)
{
        unsigned 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)
{
        u32 tmp_reg;
        unsigned int reg_writes = 0;
        u32 new_bias = 0;

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

        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);

        DBG("ath9k: 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 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)
{
        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 {
                        DBG("ath9k: Invalid channel %d 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 {
                DBG("ath9k: Invalid channel %d 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;
        static int pilot_mask_reg[4] = {
                AR_PHY_TIMING7, AR_PHY_TIMING8,
                AR_PHY_PILOT_MASK_01_30, AR_PHY_PILOT_MASK_31_60
        };
        static int chan_mask_reg[4] = {
                AR_PHY_TIMING9, AR_PHY_TIMING10,
                AR_PHY_CHANNEL_MASK_01_30, AR_PHY_CHANNEL_MASK_31_60
        };
        static 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;
        int 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 = zalloc((sizeof(u32) * size)); \
                if (!bank) { \
                        DBG("ath9k: Cannot allocate RF banks\n"); \
                        return -ENOMEM; \
                } \
        } while (0);

        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 { \
                free(bank); \
                bank = NULL; \
        } while (0);

        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 int 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;
        unsigned 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_20_OR_LATER(ah))
                return 1;

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

        /* Setup Bank 0 Write */
        ar5008_rf_bank_setup(ah->analogBank0Data, &ah->iniBank0, 1);

        /* Setup Bank 1 Write */
        ar5008_rf_bank_setup(ah->analogBank1Data, &ah->iniBank1, 1);

        /* Setup Bank 2 Write */
        ar5008_rf_bank_setup(ah->analogBank2Data, &ah->iniBank2, 1);

        /* Setup Bank 6 Write */
        ar5008_rf_bank_setup(ah->analogBank3Data, &ah->iniBank3,
                      modesIndex);
        {
                unsigned 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 */
        ar5008_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 1;
}

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);
                /* 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 __unused)
{
        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)) {
                val = REG_READ(ah, AR_PCU_MISC_MODE2);

                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);

                REG_WRITE(ah, AR_PCU_MISC_MODE2, val);
        }

        if (!AR_SREV_5416_20_OR_LATER(ah) ||
            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 ((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);

        ENABLE_REGWRITE_BUFFER(ah);

        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_regulatory *regulatory = ath9k_hw_regulatory(ah);
        struct ath_common *common = ath9k_hw_common(ah);
        unsigned int i, regWrites = 0;
        struct net80211_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;
        }

        /*
         * 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);

        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_WRITE_ARRAY(&ah->iniModes_9271_1_0_only,
                                modesIndex, regWrites);

        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);

        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 (IS_CHAN_A_FAST_CLOCK(ah, 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),
                                 0,
                                 channel->maxpower * 2,
                                 min((u32) MAX_RATE_POWER,
                                 (u32) regulatory->power_limit), 0);

        /* Write analog registers */
        if (!ath9k_hw_set_rf_regs(ah, chan, freqIndex)) {
                DBG("ath9k: 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_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 int 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_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, int 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);
}

static u32 ar9100_hw_compute_pll_control(struct ath_hw *ah __unused,
                                         struct ath9k_channel *chan)
{
        if (chan && IS_CHAN_5GHZ(chan))
                return 0x1450;
        return 0x1458;
}

static u32 ar9160_hw_compute_pll_control(struct ath_hw *ah __unused,
                                         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 __unused,
                                         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 int ar5008_hw_ani_control_old(struct ath_hw *ah,
                                      enum ath9k_ani_cmd cmd,
                                      int param)
{
        struct ar5416AniState *aniState = &ah->curchan->ani;

        switch (cmd & ah->ani_function) {
        case ATH9K_ANI_NOISE_IMMUNITY_LEVEL:{
                u32 level = param;

                if (level >= ARRAY_SIZE(ah->totalSizeDesired)) {
                        DBG("ath9k: "
                                "level out of range (%d > %zd)\n",
                                level, ARRAY_SIZE(ah->totalSizeDesired));
                        return 0;
                }

                REG_RMW_FIELD(ah, AR_PHY_DESIRED_SZ,
                              AR_PHY_DESIRED_SZ_TOT_DES,
                              ah->totalSizeDesired[level]);
                REG_RMW_FIELD(ah, AR_PHY_AGC_CTL1,
                              AR_PHY_AGC_CTL1_COARSE_LOW,
                              ah->coarse_low[level]);
                REG_RMW_FIELD(ah, AR_PHY_AGC_CTL1,
                              AR_PHY_AGC_CTL1_COARSE_HIGH,
                              ah->coarse_high[level]);
                REG_RMW_FIELD(ah, AR_PHY_FIND_SIG,
                              AR_PHY_FIND_SIG_FIRPWR,
                              ah->firpwr[level]);

                if (level > aniState->noiseImmunityLevel)
                        ah->stats.ast_ani_niup++;
                else if (level < aniState->noiseImmunityLevel)
                        ah->stats.ast_ani_nidown++;
                aniState->noiseImmunityLevel = level;
                break;
        }
        case ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION:{
                static const int m1ThreshLow[] = { 127, 50 };
                static const int m2ThreshLow[] = { 127, 40 };
                static const int m1Thresh[] = { 127, 0x4d };
                static const int m2Thresh[] = { 127, 0x40 };
                static const int m2CountThr[] = { 31, 16 };
                static const int m2CountThrLow[] = { 63, 48 };
                u32 on = param ? 1 : 0;

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

                REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
                              AR_PHY_SFCORR_EXT_M1_THRESH_LOW,
                              m1ThreshLow[on]);
                REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
                              AR_PHY_SFCORR_EXT_M2_THRESH_LOW,
                              m2ThreshLow[on]);
                REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
                              AR_PHY_SFCORR_EXT_M1_THRESH,
                              m1Thresh[on]);
                REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
                              AR_PHY_SFCORR_EXT_M2_THRESH,
                              m2Thresh[on]);

                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) {
                        if (on)
                                ah->stats.ast_ani_ofdmon++;
                        else
                                ah->stats.ast_ani_ofdmoff++;
                        aniState->ofdmWeakSigDetect = on;
                }
                break;
        }
        case ATH9K_ANI_CCK_WEAK_SIGNAL_THR:{
                static const int weakSigThrCck[] = { 8, 6 };
                u32 high = param ? 1 : 0;

                REG_RMW_FIELD(ah, AR_PHY_CCK_DETECT,
                              AR_PHY_CCK_DETECT_WEAK_SIG_THR_CCK,
                              weakSigThrCck[high]);
                if (high != aniState->cckWeakSigThreshold) {
                        if (high)
                                ah->stats.ast_ani_cckhigh++;
                        else
                                ah->stats.ast_ani_ccklow++;
                        aniState->cckWeakSigThreshold = high;
                }
                break;
        }
        case ATH9K_ANI_FIRSTEP_LEVEL:{
                static const int firstep[] = { 0, 4, 8 };
                u32 level = param;

                if (level >= ARRAY_SIZE(firstep)) {
                        DBG("ath9k: "
                                "level out of range (%d > %zd)\n",
                                level, ARRAY_SIZE(firstep));
                        return 0;
                }
                REG_RMW_FIELD(ah, AR_PHY_FIND_SIG,
                              AR_PHY_FIND_SIG_FIRSTEP,
                              firstep[level]);
                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:{
                static const int cycpwrThr1[] = { 2, 4, 6, 8, 10, 12, 14, 16 };
                u32 level = param;

                if (level >= ARRAY_SIZE(cycpwrThr1)) {
                        DBG("ath9k: "
                                "level out of range (%d > %zd)\n",
                                level, ARRAY_SIZE(cycpwrThr1));
                        return 0;
                }
                REG_RMW_FIELD(ah, AR_PHY_TIMING5,
                              AR_PHY_TIMING5_CYCPWR_THR1,
                              cycpwrThr1[level]);
                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_PRESENT:
                break;
        default:
                DBG("ath9k: invalid cmd %d\n", cmd);
                return 0;
        }

        DBG2("ath9k: ANI parameters:\n");
        DBG2(
                "noiseImmunityLevel=%d, spurImmunityLevel=%d, ofdmWeakSigDetect=%d\n",
                aniState->noiseImmunityLevel,
                aniState->spurImmunityLevel,
                aniState->ofdmWeakSigDetect);
        DBG2(
                "cckWeakSigThreshold=%d, firstepLevel=%d, listenTime=%d\n",
                aniState->cckWeakSigThreshold,
                aniState->firstepLevel,
                aniState->listenTime);
        DBG2(
                "ofdmPhyErrCount=%d, cckPhyErrCount=%d\n\n",
                aniState->ofdmPhyErrCount,
                aniState->cckPhyErrCount);

        return 1;
}

static int ar5008_hw_ani_control_new(struct ath_hw *ah,
                                      enum ath9k_ani_cmd cmd,
                                      int param)
{
        struct ath9k_channel *chan = ah->curchan;
        struct ar5416AniState *aniState = &chan->ani;
        s32 value, value2;

        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) {
                        DBG2("ath9k: "
                                "** 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;

                if (level >= ARRAY_SIZE(firstep_table)) {
                        DBG("ath9k: "
                                "ATH9K_ANI_FIRSTEP_LEVEL: level out of range (%d > %zd)\n",
                                level, ARRAY_SIZE(firstep_table));
                        return 0;
                }

                /*
                 * make register setting relative to default
                 * from INI file & cap value
                 */
                value = firstep_table[level] -
                        firstep_table[ATH9K_ANI_FIRSTEP_LVL_NEW] +
                        aniState->iniDef.firstep;
                if (value < ATH9K_SIG_FIRSTEP_SETTING_MIN)
                        value = ATH9K_SIG_FIRSTEP_SETTING_MIN;
                if (value > ATH9K_SIG_FIRSTEP_SETTING_MAX)
                        value = ATH9K_SIG_FIRSTEP_SETTING_MAX;
                REG_RMW_FIELD(ah, AR_PHY_FIND_SIG,
                              AR_PHY_FIND_SIG_FIRSTEP,
                              value);
                /*
                 * we need to set first step low register too
                 * make register setting relative to default
                 * from INI file & cap value
                 */
                value2 = firstep_table[level] -
                         firstep_table[ATH9K_ANI_FIRSTEP_LVL_NEW] +
                         aniState->iniDef.firstepLow;
                if (value2 < ATH9K_SIG_FIRSTEP_SETTING_MIN)
                        value2 = ATH9K_SIG_FIRSTEP_SETTING_MIN;
                if (value2 > ATH9K_SIG_FIRSTEP_SETTING_MAX)
                        value2 = ATH9K_SIG_FIRSTEP_SETTING_MAX;

                REG_RMW_FIELD(ah, AR_PHY_FIND_SIG_LOW,
                              AR_PHY_FIND_SIG_FIRSTEP_LOW, value2);

                if (level != aniState->firstepLevel) {
                        DBG2("ath9k: "
                                "** ch %d: level %d=>%d[def:%d] firstep[level]=%d ini=%d\n",
                                chan->channel,
                                aniState->firstepLevel,
                                level,
                                ATH9K_ANI_FIRSTEP_LVL_NEW,
                                value,
                                aniState->iniDef.firstep);
                        DBG2("ath9k: "
                                "** ch %d: level %d=>%d[def:%d] firstep_low[level]=%d ini=%d\n",
                                chan->channel,
                                aniState->firstepLevel,
                                level,
                                ATH9K_ANI_FIRSTEP_LVL_NEW,
                                value2,
                                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;

                if (level >= ARRAY_SIZE(cycpwrThr1_table)) {
                        DBG("ath9k: "
                                "ATH9K_ANI_SPUR_IMMUNITY_LEVEL: level out of range (%d > %zd)\n",
                                level, ARRAY_SIZE(cycpwrThr1_table));
                        return 0;
                }
                /*
                 * make register setting relative to default
                 * from INI file & cap value
                 */
                value = cycpwrThr1_table[level] -
                        cycpwrThr1_table[ATH9K_ANI_SPUR_IMMUNE_LVL_NEW] +
                        aniState->iniDef.cycpwrThr1;
                if (value < ATH9K_SIG_SPUR_IMM_SETTING_MIN)
                        value = ATH9K_SIG_SPUR_IMM_SETTING_MIN;
                if (value > ATH9K_SIG_SPUR_IMM_SETTING_MAX)
                        value = ATH9K_SIG_SPUR_IMM_SETTING_MAX;
                REG_RMW_FIELD(ah, AR_PHY_TIMING5,
                              AR_PHY_TIMING5_CYCPWR_THR1,
                              value);

                /*
                 * set AR_PHY_EXT_CCA for extension channel
                 * make register setting relative to default
                 * from INI file & cap value
                 */
                value2 = cycpwrThr1_table[level] -
                         cycpwrThr1_table[ATH9K_ANI_SPUR_IMMUNE_LVL_NEW] +
                         aniState->iniDef.cycpwrThr1Ext;
                if (value2 < ATH9K_SIG_SPUR_IMM_SETTING_MIN)
                        value2 = ATH9K_SIG_SPUR_IMM_SETTING_MIN;
                if (value2 > ATH9K_SIG_SPUR_IMM_SETTING_MAX)
                        value2 = ATH9K_SIG_SPUR_IMM_SETTING_MAX;
                REG_RMW_FIELD(ah, AR_PHY_EXT_CCA,
                              AR_PHY_EXT_TIMING5_CYCPWR_THR1, value2);

                if (level != aniState->spurImmunityLevel) {
                        DBG2("ath9k: "
                                "** ch %d: level %d=>%d[def:%d] cycpwrThr1[level]=%d ini=%d\n",
                                chan->channel,
                                aniState->spurImmunityLevel,
                                level,
                                ATH9K_ANI_SPUR_IMMUNE_LVL_NEW,
                                value,
                                aniState->iniDef.cycpwrThr1);
                        DBG2("ath9k: "
                                "** ch %d: level %d=>%d[def:%d] cycpwrThr1Ext[level]=%d ini=%d\n",
                                chan->channel,
                                aniState->spurImmunityLevel,
                                level,
                                ATH9K_ANI_SPUR_IMMUNE_LVL_NEW,
                                value2,
                                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.
                 */
                break;
        case ATH9K_ANI_PRESENT:
                break;
        default:
                DBG("ath9k: invalid cmd %d\n", cmd);
                return 0;
        }

        DBG2("ath9k: "
                "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->mrcCCKOff ? "on" : "off",
                aniState->listenTime,
                aniState->ofdmPhyErrCount,
                aniState->cckPhyErrCount);
        return 1;
}

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 ath9k_channel *chan = ah->curchan;
        struct ar5416AniState *aniState = &chan->ani;
        struct ath9k_ani_default *iniDef;
        u32 val;

        iniDef = &aniState->iniDef;

        DBG2("ath9k: ver %d.%d chan %d Mhz/0x%x\n",
                ah->hw_version.macVersion,
                ah->hw_version.macRev,
                chan->channel,
                chan->channelFlags);

        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_NEW;
        aniState->firstepLevel = ATH9K_ANI_FIRSTEP_LVL_NEW;
        aniState->ofdmWeakSigDetect = ATH9K_ANI_USE_OFDM_WEAK_SIG;
        aniState->mrcCCKOff = 1; /* 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 = 0;

        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 |= 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 = 24;
        conf->pulse_inband = 15;
        conf->pulse_maxlen = 255;
        conf->pulse_inband_step = 12;
        conf->radar_inband = 8;
}

void 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
        };

        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->restore_chainmask = ar5008_restore_chainmask;
        priv_ops->set_diversity = ar5008_set_diversity;
        priv_ops->do_getnf = ar5008_hw_do_getnf;
        priv_ops->set_radar_params = ar5008_hw_set_radar_params;

        if (modparam_force_new_ani) {
                priv_ops->ani_control = ar5008_hw_ani_control_new;
                priv_ops->ani_cache_ini_regs = ar5008_hw_ani_cache_ini_regs;
        } else
                priv_ops->ani_control = ar5008_hw_ani_control_old;

        if (AR_SREV_9100(ah))
                priv_ops->compute_pll_control = ar9100_hw_compute_pll_control;
        else if (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));
}