/*
 * Copyright (c) 2010-2011 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 <linux/export.h>
#include "hw.h"
#include "ar9003_phy.h"

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;

/**
 * ar9003_hw_set_channel - set channel on single-chip device
 * @ah: atheros hardware structure
 * @chan:
 *
 * This is the function to change channel on single-chip devices, that is
 * for AR9300 family of chipsets.
 *
 * This function takes the channel value in MHz and sets
 * hardware channel value. Assumes writes have been enabled to analog bus.
 *
 * Actual Expression,
 *
 * For 2GHz channel,
 * Channel Frequency = (3/4) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17)
 * (freq_ref = 40MHz)
 *
 * For 5GHz channel,
 * Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^10)
 * (freq_ref = 40MHz/(24>>amodeRefSel))
 *
 * For 5GHz channels which are 5MHz spaced,
 * Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17)
 * (freq_ref = 40MHz)
 */
static int ar9003_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
{
        u16 bMode, fracMode = 0, aModeRefSel = 0;
        u32 freq, chan_frac, div, channelSel = 0, reg32 = 0;
        struct chan_centers centers;
        int loadSynthChannel;

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

        if (freq < 4800) {     /* 2 GHz, fractional mode */
                if (AR_SREV_9330(ah)) {
                        if (ah->is_clk_25mhz)
                                div = 75;
                        else
                                div = 120;

                        channelSel = (freq * 4) / div;
                        chan_frac = (((freq * 4) % div) * 0x20000) / div;
                        channelSel = (channelSel << 17) | chan_frac;
                } else if (AR_SREV_9485(ah) || AR_SREV_9565(ah)) {
                        /*
                         * freq_ref = 40 / (refdiva >> amoderefsel);
                         * where refdiva=1 and amoderefsel=0
                         * ndiv = ((chan_mhz * 4) / 3) / freq_ref;
                         * chansel = int(ndiv), chanfrac = (ndiv - chansel) * 0x20000
                         */
                        channelSel = (freq * 4) / 120;
                        chan_frac = (((freq * 4) % 120) * 0x20000) / 120;
                        channelSel = (channelSel << 17) | chan_frac;
                } else if (AR_SREV_9340(ah)) {
                        if (ah->is_clk_25mhz) {
                                channelSel = (freq * 2) / 75;
                                chan_frac = (((freq * 2) % 75) * 0x20000) / 75;
                                channelSel = (channelSel << 17) | chan_frac;
                        } else {
                                channelSel = CHANSEL_2G(freq) >> 1;
                        }
                } else if (AR_SREV_9550(ah)) {
                        if (ah->is_clk_25mhz)
                                div = 75;
                        else
                                div = 120;

                        channelSel = (freq * 4) / div;
                        chan_frac = (((freq * 4) % div) * 0x20000) / div;
                        channelSel = (channelSel << 17) | chan_frac;
                } else {
                        channelSel = CHANSEL_2G(freq);
                }
                /* Set to 2G mode */
                bMode = 1;
        } else {
                if ((AR_SREV_9340(ah) || AR_SREV_9550(ah)) &&
                    ah->is_clk_25mhz) {
                        channelSel = freq / 75;
                        chan_frac = ((freq % 75) * 0x20000) / 75;
                        channelSel = (channelSel << 17) | chan_frac;
                } else {
                        channelSel = CHANSEL_5G(freq);
                        /* Doubler is ON, so, divide channelSel by 2. */
                        channelSel >>= 1;
                }
                /* Set to 5G mode */
                bMode = 0;
        }

        /* Enable fractional mode for all channels */
        fracMode = 1;
        aModeRefSel = 0;
        loadSynthChannel = 0;

        reg32 = (bMode << 29);
        REG_WRITE(ah, AR_PHY_SYNTH_CONTROL, reg32);

        /* Enable Long shift Select for Synthesizer */
        REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_SYNTH4,
                      AR_PHY_SYNTH4_LONG_SHIFT_SELECT, 1);

        /* Program Synth. setting */
        reg32 = (channelSel << 2) | (fracMode << 30) |
                (aModeRefSel << 28) | (loadSynthChannel << 31);
        REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);

        /* Toggle Load Synth channel bit */
        loadSynthChannel = 1;
        reg32 = (channelSel << 2) | (fracMode << 30) |
                (aModeRefSel << 28) | (loadSynthChannel << 31);
        REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);

        ah->curchan = chan;

        return 0;
}

/**
 * ar9003_hw_spur_mitigate_mrc_cck - convert baseband spur frequency
 * @ah: atheros hardware structure
 * @chan:
 *
 * For single-chip solutions. Converts to baseband spur frequency given the
 * input channel frequency and compute register settings below.
 *
 * Spur mitigation for MRC CCK
 */
static void ar9003_hw_spur_mitigate_mrc_cck(struct ath_hw *ah,
                                            struct ath9k_channel *chan)
{
        static const u32 spur_freq[4] = { 2420, 2440, 2464, 2480 };
        int cur_bb_spur, negative = 0, cck_spur_freq;
        int i;
        int range, max_spur_cnts, synth_freq;
        u8 *spur_fbin_ptr = ar9003_get_spur_chan_ptr(ah, IS_CHAN_2GHZ(chan));

        /*
         * Need to verify range +/- 10 MHz in control channel, otherwise spur
         * is out-of-band and can be ignored.
         */

        if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah) ||
            AR_SREV_9550(ah)) {
                if (spur_fbin_ptr[0] == 0) /* No spur */
                        return;
                max_spur_cnts = 5;
                if (IS_CHAN_HT40(chan)) {
                        range = 19;
                        if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
                                           AR_PHY_GC_DYN2040_PRI_CH) == 0)
                                synth_freq = chan->channel + 10;
                        else
                                synth_freq = chan->channel - 10;
                } else {
                        range = 10;
                        synth_freq = chan->channel;
                }
        } else {
                range = AR_SREV_9462(ah) ? 5 : 10;
                max_spur_cnts = 4;
                synth_freq = chan->channel;
        }

        for (i = 0; i < max_spur_cnts; i++) {
                if (AR_SREV_9462(ah) && (i == 0 || i == 3))
                        continue;

                negative = 0;
                if (AR_SREV_9485(ah) || AR_SREV_9340(ah) || AR_SREV_9330(ah) ||
                    AR_SREV_9550(ah))
                        cur_bb_spur = ath9k_hw_fbin2freq(spur_fbin_ptr[i],
                                                         IS_CHAN_2GHZ(chan));
                else
                        cur_bb_spur = spur_freq[i];

                cur_bb_spur -= synth_freq;
                if (cur_bb_spur < 0) {
                        negative = 1;
                        cur_bb_spur = -cur_bb_spur;
                }
                if (cur_bb_spur < range) {
                        cck_spur_freq = (int)((cur_bb_spur << 19) / 11);

                        if (negative == 1)
                                cck_spur_freq = -cck_spur_freq;

                        cck_spur_freq = cck_spur_freq & 0xfffff;

                        REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
                                      AR_PHY_AGC_CONTROL_YCOK_MAX, 0x7);
                        REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
                                      AR_PHY_CCK_SPUR_MIT_SPUR_RSSI_THR, 0x7f);
                        REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
                                      AR_PHY_CCK_SPUR_MIT_SPUR_FILTER_TYPE,
                                      0x2);
                        REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
                                      AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT,
                                      0x1);
                        REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
                                      AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ,
                                      cck_spur_freq);

                        return;
                }
        }

        REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
                      AR_PHY_AGC_CONTROL_YCOK_MAX, 0x5);
        REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
                      AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT, 0x0);
        REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
                      AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ, 0x0);
}

/* Clean all spur register fields */
static void ar9003_hw_spur_ofdm_clear(struct ath_hw *ah)
{
        REG_RMW_FIELD(ah, AR_PHY_TIMING4,
                      AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0);
        REG_RMW_FIELD(ah, AR_PHY_TIMING11,
                      AR_PHY_TIMING11_SPUR_FREQ_SD, 0);
        REG_RMW_FIELD(ah, AR_PHY_TIMING11,
                      AR_PHY_TIMING11_SPUR_DELTA_PHASE, 0);
        REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
                      AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, 0);
        REG_RMW_FIELD(ah, AR_PHY_TIMING11,
                      AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0);
        REG_RMW_FIELD(ah, AR_PHY_TIMING11,
                      AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0);
        REG_RMW_FIELD(ah, AR_PHY_TIMING4,
                      AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0);
        REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
                      AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 0);
        REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
                      AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 0);

        REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
                      AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0);
        REG_RMW_FIELD(ah, AR_PHY_TIMING4,
                      AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0);
        REG_RMW_FIELD(ah, AR_PHY_TIMING4,
                      AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0);
        REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
                      AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, 0);
        REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
                      AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, 0);
        REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
                      AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, 0);
        REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
                      AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0);
        REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
                      AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0);
        REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
                      AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0);
        REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
                      AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0);
}

static void ar9003_hw_spur_ofdm(struct ath_hw *ah,
                                int freq_offset,
                                int spur_freq_sd,
                                int spur_delta_phase,
                                int spur_subchannel_sd,
                                int range,
                                int synth_freq)
{
        int mask_index = 0;

        /* OFDM Spur mitigation */
        REG_RMW_FIELD(ah, AR_PHY_TIMING4,
                 AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0x1);
        REG_RMW_FIELD(ah, AR_PHY_TIMING11,
                      AR_PHY_TIMING11_SPUR_FREQ_SD, spur_freq_sd);
        REG_RMW_FIELD(ah, AR_PHY_TIMING11,
                      AR_PHY_TIMING11_SPUR_DELTA_PHASE, spur_delta_phase);
        REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
                      AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, spur_subchannel_sd);
        REG_RMW_FIELD(ah, AR_PHY_TIMING11,
                      AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0x1);

        if (!(AR_SREV_9565(ah) && range == 10 && synth_freq == 2437))
                REG_RMW_FIELD(ah, AR_PHY_TIMING11,
                              AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0x1);

        REG_RMW_FIELD(ah, AR_PHY_TIMING4,
                      AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0x1);
        REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
                      AR_PHY_SPUR_REG_SPUR_RSSI_THRESH, 34);
        REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
                      AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 1);

        if (!AR_SREV_9340(ah) &&
            REG_READ_FIELD(ah, AR_PHY_MODE,
                           AR_PHY_MODE_DYNAMIC) == 0x1)
                REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
                              AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 1);

        mask_index = (freq_offset << 4) / 5;
        if (mask_index < 0)
                mask_index = mask_index - 1;

        mask_index = mask_index & 0x7f;

        REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
                      AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0x1);
        REG_RMW_FIELD(ah, AR_PHY_TIMING4,
                      AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0x1);
        REG_RMW_FIELD(ah, AR_PHY_TIMING4,
                      AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0x1);
        REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
                      AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, mask_index);
        REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
                      AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, mask_index);
        REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
                      AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, mask_index);
        REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
                      AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0xc);
        REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
                      AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0xc);
        REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
                      AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0xa0);
        REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
                      AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0xff);
}

static void ar9003_hw_spur_ofdm_9565(struct ath_hw *ah,
                                     int freq_offset)
{
        int mask_index = 0;

        mask_index = (freq_offset << 4) / 5;
        if (mask_index < 0)
                mask_index = mask_index - 1;

        mask_index = mask_index & 0x7f;

        REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
                      AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_B,
                      mask_index);

        /* A == B */
        REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_B,
                      AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A,
                      mask_index);

        REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
                      AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_B,
                      mask_index);
        REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
                      AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_B, 0xe);
        REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
                      AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_B, 0xe);

        /* A == B */
        REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_B,
                      AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0xa0);
}

static void ar9003_hw_spur_ofdm_work(struct ath_hw *ah,
                                     struct ath9k_channel *chan,
                                     int freq_offset,
                                     int range,
                                     int synth_freq)
{
        int spur_freq_sd = 0;
        int spur_subchannel_sd = 0;
        int spur_delta_phase = 0;

        if (IS_CHAN_HT40(chan)) {
                if (freq_offset < 0) {
                        if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
                                           AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
                                spur_subchannel_sd = 1;
                        else
                                spur_subchannel_sd = 0;

                        spur_freq_sd = ((freq_offset + 10) << 9) / 11;

                } else {
                        if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
                            AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
                                spur_subchannel_sd = 0;
                        else
                                spur_subchannel_sd = 1;

                        spur_freq_sd = ((freq_offset - 10) << 9) / 11;

                }

                spur_delta_phase = (freq_offset << 17) / 5;

        } else {
                spur_subchannel_sd = 0;
                spur_freq_sd = (freq_offset << 9) /11;
                spur_delta_phase = (freq_offset << 18) / 5;
        }

        spur_freq_sd = spur_freq_sd & 0x3ff;
        spur_delta_phase = spur_delta_phase & 0xfffff;

        ar9003_hw_spur_ofdm(ah,
                            freq_offset,
                            spur_freq_sd,
                            spur_delta_phase,
                            spur_subchannel_sd,
                            range, synth_freq);
}

/* Spur mitigation for OFDM */
static void ar9003_hw_spur_mitigate_ofdm(struct ath_hw *ah,
                                         struct ath9k_channel *chan)
{
        int synth_freq;
        int range = 10;
        int freq_offset = 0;
        int mode;
        u8* spurChansPtr;
        unsigned int i;
        struct ar9300_eeprom *eep = &ah->eeprom.ar9300_eep;

        if (IS_CHAN_5GHZ(chan)) {
                spurChansPtr = &(eep->modalHeader5G.spurChans[0]);
                mode = 0;
        }
        else {
                spurChansPtr = &(eep->modalHeader2G.spurChans[0]);
                mode = 1;
        }

        if (spurChansPtr[0] == 0)
                return; /* No spur in the mode */

        if (IS_CHAN_HT40(chan)) {
                range = 19;
                if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
                                   AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
                        synth_freq = chan->channel - 10;
                else
                        synth_freq = chan->channel + 10;
        } else {
                range = 10;
                synth_freq = chan->channel;
        }

        ar9003_hw_spur_ofdm_clear(ah);

        for (i = 0; i < AR_EEPROM_MODAL_SPURS && spurChansPtr[i]; i++) {
                freq_offset = ath9k_hw_fbin2freq(spurChansPtr[i], mode);
                freq_offset -= synth_freq;
                if (abs(freq_offset) < range) {
                        ar9003_hw_spur_ofdm_work(ah, chan, freq_offset,
                                                 range, synth_freq);

                        if (AR_SREV_9565(ah) && (i < 4)) {
                                freq_offset = ath9k_hw_fbin2freq(spurChansPtr[i + 1],
                                                                 mode);
                                freq_offset -= synth_freq;
                                if (abs(freq_offset) < range)
                                        ar9003_hw_spur_ofdm_9565(ah, freq_offset);
                        }

                        break;
                }
        }
}

static void ar9003_hw_spur_mitigate(struct ath_hw *ah,
                                    struct ath9k_channel *chan)
{
        if (!AR_SREV_9565(ah))
                ar9003_hw_spur_mitigate_mrc_cck(ah, chan);
        ar9003_hw_spur_mitigate_ofdm(ah, chan);
}

static u32 ar9003_hw_compute_pll_control(struct ath_hw *ah,
                                         struct ath9k_channel *chan)
{
        u32 pll;

        pll = SM(0x5, AR_RTC_9300_PLL_REFDIV);

        if (chan && IS_CHAN_HALF_RATE(chan))
                pll |= SM(0x1, AR_RTC_9300_PLL_CLKSEL);
        else if (chan && IS_CHAN_QUARTER_RATE(chan))
                pll |= SM(0x2, AR_RTC_9300_PLL_CLKSEL);

        pll |= SM(0x2c, AR_RTC_9300_PLL_DIV);

        return pll;
}

static void ar9003_hw_set_channel_regs(struct ath_hw *ah,
                                       struct ath9k_channel *chan)
{
        u32 phymode;
        u32 enableDacFifo = 0;

        enableDacFifo =
                (REG_READ(ah, AR_PHY_GEN_CTRL) & AR_PHY_GC_ENABLE_DAC_FIFO);

        /* Enable 11n HT, 20 MHz */
        phymode = AR_PHY_GC_HT_EN | AR_PHY_GC_SINGLE_HT_LTF1 |
                  AR_PHY_GC_SHORT_GI_40 | enableDacFifo;

        /* Configure baseband for dynamic 20/40 operation */
        if (IS_CHAN_HT40(chan)) {
                phymode |= AR_PHY_GC_DYN2040_EN;
                /* Configure control (primary) channel at +-10MHz */
                if (IS_CHAN_HT40PLUS(chan))
                        phymode |= AR_PHY_GC_DYN2040_PRI_CH;

        }

        /* make sure we preserve INI settings */
        phymode |= REG_READ(ah, AR_PHY_GEN_CTRL);
        /* turn off Green Field detection for STA for now */
        phymode &= ~AR_PHY_GC_GF_DETECT_EN;

        REG_WRITE(ah, AR_PHY_GEN_CTRL, phymode);

        /* Configure MAC for 20/40 operation */
        ath9k_hw_set11nmac2040(ah, chan);

        /* global transmit timeout (25 TUs default)*/
        REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
        /* carrier sense timeout */
        REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);
}

static void ar9003_hw_init_bb(struct ath_hw *ah,
                              struct ath9k_channel *chan)
{
        u32 synthDelay;

        /*
         * Wait for the frequency synth to settle (synth goes on
         * via AR_PHY_ACTIVE_EN).  Read the phy active delay register.
         * Value is in 100ns increments.
         */
        synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;

        /* Activate the PHY (includes baseband activate + synthesizer on) */
        REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
        ath9k_hw_synth_delay(ah, chan, synthDelay);
}

void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx)
{
        if (ah->caps.tx_chainmask == 5 || ah->caps.rx_chainmask == 5)
                REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
                            AR_PHY_SWAP_ALT_CHAIN);

        REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx);
        REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx);

        if ((ah->caps.hw_caps & ATH9K_HW_CAP_APM) && (tx == 0x7))
                tx = 3;

        REG_WRITE(ah, AR_SELFGEN_MASK, tx);
}

/*
 * Override INI values with chip specific configuration.
 */
static void ar9003_hw_override_ini(struct ath_hw *ah)
{
        u32 val;

        /*
         * Set the RX_ABORT and RX_DIS and clear it 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));

        /*
         * 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);
        val |= AR_AGG_WEP_ENABLE_FIX |
               AR_AGG_WEP_ENABLE |
               AR_PCU_MISC_MODE2_CFP_IGNORE;
        REG_WRITE(ah, AR_PCU_MISC_MODE2, val);

        if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
                REG_WRITE(ah, AR_GLB_SWREG_DISCONT_MODE,
                          AR_GLB_SWREG_DISCONT_EN_BT_WLAN);

                if (REG_READ_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_0,
                                   AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL))
                        ah->enabled_cals |= TX_IQ_CAL;
                else
                        ah->enabled_cals &= ~TX_IQ_CAL;

                if (REG_READ(ah, AR_PHY_CL_CAL_CTL) & AR_PHY_CL_CAL_ENABLE)
                        ah->enabled_cals |= TX_CL_CAL;
                else
                        ah->enabled_cals &= ~TX_CL_CAL;
        }
}

static void ar9003_hw_prog_ini(struct ath_hw *ah,
                               struct ar5416IniArray *iniArr,
                               int column)
{
        unsigned int i, regWrites = 0;

        /* New INI format: Array may be undefined (pre, core, post arrays) */
        if (!iniArr->ia_array)
                return;

        /*
         * New INI format: Pre, core, and post arrays for a given subsystem
         * may be modal (> 2 columns) or non-modal (2 columns). Determine if
         * the array is non-modal and force the column to 1.
         */
        if (column >= iniArr->ia_columns)
                column = 1;

        for (i = 0; i < iniArr->ia_rows; i++) {
                u32 reg = INI_RA(iniArr, i, 0);
                u32 val = INI_RA(iniArr, i, column);

                REG_WRITE(ah, reg, val);

                DO_DELAY(regWrites);
        }
}

static int ar9550_hw_get_modes_txgain_index(struct ath_hw *ah,
                                            struct ath9k_channel *chan)
{
        int ret;

        if (IS_CHAN_2GHZ(chan)) {
                if (IS_CHAN_HT40(chan))
                        return 7;
                else
                        return 8;
        }

        if (chan->channel <= 5350)
                ret = 1;
        else if ((chan->channel > 5350) && (chan->channel <= 5600))
                ret = 3;
        else
                ret = 5;

        if (IS_CHAN_HT40(chan))
                ret++;

        return ret;
}

static void ar9003_doubler_fix(struct ath_hw *ah)
{
        if (AR_SREV_9300(ah) || AR_SREV_9580(ah) || AR_SREV_9550(ah)) {
                REG_RMW(ah, AR_PHY_65NM_CH0_RXTX2,
                        1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S |
                        1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S, 0);
                REG_RMW(ah, AR_PHY_65NM_CH1_RXTX2,
                        1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S |
                        1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S, 0);
                REG_RMW(ah, AR_PHY_65NM_CH2_RXTX2,
                        1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S |
                        1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S, 0);

                udelay(200);

                REG_CLR_BIT(ah, AR_PHY_65NM_CH0_RXTX2,
                            AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK);
                REG_CLR_BIT(ah, AR_PHY_65NM_CH1_RXTX2,
                            AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK);
                REG_CLR_BIT(ah, AR_PHY_65NM_CH2_RXTX2,
                            AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK);

                udelay(1);

                REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_RXTX2,
                              AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK, 1);
                REG_RMW_FIELD(ah, AR_PHY_65NM_CH1_RXTX2,
                              AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK, 1);
                REG_RMW_FIELD(ah, AR_PHY_65NM_CH2_RXTX2,
                              AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK, 1);

                udelay(200);

                REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_SYNTH12,
                              AR_PHY_65NM_CH0_SYNTH12_VREFMUL3, 0xf);

                REG_RMW(ah, AR_PHY_65NM_CH0_RXTX2, 0,
                        1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S |
                        1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S);
                REG_RMW(ah, AR_PHY_65NM_CH1_RXTX2, 0,
                        1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S |
                        1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S);
                REG_RMW(ah, AR_PHY_65NM_CH2_RXTX2, 0,
                        1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S |
                        1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S);
        }
}

static int ar9003_hw_process_ini(struct ath_hw *ah,
                                 struct ath9k_channel *chan)
{
        unsigned int regWrites = 0, i;
        u32 modesIndex;

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

        /*
         * SOC, MAC, BB, RADIO initvals.
         */
        for (i = 0; i < ATH_INI_NUM_SPLIT; i++) {
                ar9003_hw_prog_ini(ah, &ah->iniSOC[i], modesIndex);
                ar9003_hw_prog_ini(ah, &ah->iniMac[i], modesIndex);
                ar9003_hw_prog_ini(ah, &ah->iniBB[i], modesIndex);
                ar9003_hw_prog_ini(ah, &ah->iniRadio[i], modesIndex);
                if (i == ATH_INI_POST && AR_SREV_9462_20_OR_LATER(ah))
                        ar9003_hw_prog_ini(ah,
                                           &ah->ini_radio_post_sys2ant,
                                           modesIndex);
        }

        ar9003_doubler_fix(ah);

        /*
         * RXGAIN initvals.
         */
        REG_WRITE_ARRAY(&ah->iniModesRxGain, 1, regWrites);

        if (AR_SREV_9462_20_OR_LATER(ah)) {
                /*
                 * CUS217 mix LNA mode.
                 */
                if (ar9003_hw_get_rx_gain_idx(ah) == 2) {
                        REG_WRITE_ARRAY(&ah->ini_modes_rxgain_bb_core,
                                        1, regWrites);
                        REG_WRITE_ARRAY(&ah->ini_modes_rxgain_bb_postamble,
                                        modesIndex, regWrites);
                }

                /*
                 * 5G-XLNA
                 */
                if ((ar9003_hw_get_rx_gain_idx(ah) == 2) ||
                    (ar9003_hw_get_rx_gain_idx(ah) == 3)) {
                        REG_WRITE_ARRAY(&ah->ini_modes_rxgain_5g_xlna,
                                        modesIndex, regWrites);
                }
        }

        if (AR_SREV_9550(ah))
                REG_WRITE_ARRAY(&ah->ini_modes_rx_gain_bounds, modesIndex,
                                regWrites);

        /*
         * TXGAIN initvals.
         */
        if (AR_SREV_9550(ah)) {
                int modes_txgain_index;

                modes_txgain_index = ar9550_hw_get_modes_txgain_index(ah, chan);
                if (modes_txgain_index < 0)
                        return -EINVAL;

                REG_WRITE_ARRAY(&ah->iniModesTxGain, modes_txgain_index,
                                regWrites);
        } else {
                REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
        }

        /*
         * For 5GHz channels requiring Fast Clock, apply
         * different modal values.
         */
        if (IS_CHAN_A_FAST_CLOCK(ah, chan))
                REG_WRITE_ARRAY(&ah->iniModesFastClock,
                                modesIndex, regWrites);

        /*
         * Clock frequency initvals.
         */
        REG_WRITE_ARRAY(&ah->iniAdditional, 1, regWrites);

        /*
         * JAPAN regulatory.
         */
        if (chan->channel == 2484)
                ar9003_hw_prog_ini(ah, &ah->iniCckfirJapan2484, 1);

        ah->modes_index = modesIndex;
        ar9003_hw_override_ini(ah);
        ar9003_hw_set_channel_regs(ah, chan);
        ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
        ath9k_hw_apply_txpower(ah, chan, false);

        return 0;
}

static void ar9003_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 (IS_CHAN_A_FAST_CLOCK(ah, chan))
                rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);
        if (IS_CHAN_QUARTER_RATE(chan))
                rfMode |= AR_PHY_MODE_QUARTER;
        if (IS_CHAN_HALF_RATE(chan))
                rfMode |= AR_PHY_MODE_HALF;

        if (rfMode & (AR_PHY_MODE_QUARTER | AR_PHY_MODE_HALF))
                REG_RMW_FIELD(ah, AR_PHY_FRAME_CTL,
                              AR_PHY_FRAME_CTL_CF_OVERLAP_WINDOW, 3);

        REG_WRITE(ah, AR_PHY_MODE, rfMode);
}

static void ar9003_hw_mark_phy_inactive(struct ath_hw *ah)
{
        REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
}

static void ar9003_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;

        /*
         * half and quarter rate can divide the scaled clock by 2 or 4
         * scale for selected channel bandwidth
         */
        if (IS_CHAN_HALF_RATE(chan))
                clockMhzScaled = clockMhzScaled >> 1;
        else if (IS_CHAN_QUARTER_RATE(chan))
                clockMhzScaled = clockMhzScaled >> 2;

        /*
         * ALGO -> coef = 1e8/fcarrier*fclock/40;
         * scaled coef to provide precision for this floating calculation
         */
        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);

        /*
         * For Short GI,
         * scaled coeff is 9/10 that of normal coeff
         */
        coef_scaled = (9 * coef_scaled) / 10;

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

        /* for short gi */
        REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA,
                      AR_PHY_SGI_DSC_MAN, ds_coef_man);
        REG_RMW_FIELD(ah, AR_PHY_SGI_DELTA,
                      AR_PHY_SGI_DSC_EXP, ds_coef_exp);
}

static bool ar9003_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);
}

/*
 * Wait for the frequency synth to settle (synth goes on via PHY_ACTIVE_EN).
 * Read the phy active delay register. Value is in 100ns increments.
 */
static void ar9003_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 bool ar9003_hw_ani_control(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;
        int m1ThreshLow, m2ThreshLow;
        int m1Thresh, m2Thresh;
        int m2CountThr, m2CountThrLow;
        int m1ThreshLowExt, m2ThreshLowExt;
        int m1ThreshExt, m2ThreshExt;
        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;

                if (AR_SREV_9462(ah) || AR_SREV_9565(ah))
                        goto skip_ws_det;

                m1ThreshLow = on ?
                        aniState->iniDef.m1ThreshLow : m1ThreshLow_off;
                m2ThreshLow = on ?
                        aniState->iniDef.m2ThreshLow : m2ThreshLow_off;
                m1Thresh = on ?
                        aniState->iniDef.m1Thresh : m1Thresh_off;
                m2Thresh = on ?
                        aniState->iniDef.m2Thresh : m2Thresh_off;
                m2CountThr = on ?
                        aniState->iniDef.m2CountThr : m2CountThr_off;
                m2CountThrLow = on ?
                        aniState->iniDef.m2CountThrLow : m2CountThrLow_off;
                m1ThreshLowExt = on ?
                        aniState->iniDef.m1ThreshLowExt : m1ThreshLowExt_off;
                m2ThreshLowExt = on ?
                        aniState->iniDef.m2ThreshLowExt : m2ThreshLowExt_off;
                m1ThreshExt = on ?
                        aniState->iniDef.m1ThreshExt : m1ThreshExt_off;
                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);
skip_ws_det:
                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;

                if (level >= ARRAY_SIZE(firstep_table)) {
                        ath_dbg(common, ANI,
                                "ATH9K_ANI_FIRSTEP_LEVEL: level out of range (%u > %zu)\n",
                                level, ARRAY_SIZE(firstep_table));
                        return false;
                }

                /*
                 * make register setting relative to default
                 * from INI file & cap value
                 */
                value = firstep_table[level] -
                        firstep_table[ATH9K_ANI_FIRSTEP_LVL] +
                        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] +
                         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_LOW_FIRSTEP_LOW, value2);

                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,
                                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)) {
                        ath_dbg(common, ANI,
                                "ATH9K_ANI_SPUR_IMMUNITY_LEVEL: level out of range (%u > %zu)\n",
                                level, ARRAY_SIZE(cycpwrThr1_table));
                        return false;
                }
                /*
                 * make register setting relative to default
                 * from INI file & cap value
                 */
                value = cycpwrThr1_table[level] -
                        cycpwrThr1_table[ATH9K_ANI_SPUR_IMMUNE_LVL] +
                        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] +
                         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_CYCPWR_THR1, value2);

                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,
                                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:{
                /*
                 * is_on == 1 means MRC CCK ON (default, less noise imm)
                 * is_on == 0 means MRC CCK is OFF (more noise imm)
                 */
                bool is_on = param ? 1 : 0;

                if (ah->caps.rx_chainmask == 1)
                        break;

                REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL,
                              AR_PHY_MRC_CCK_ENABLE, is_on);
                REG_RMW_FIELD(ah, AR_PHY_MRC_CCK_CTRL,
                              AR_PHY_MRC_CCK_MUX_REG, is_on);
                if (is_on != aniState->mrcCCK) {
                        ath_dbg(common, ANI, "** ch %d: MRC CCK: %s=>%s\n",
                                chan->channel,
                                aniState->mrcCCK ? "on" : "off",
                                is_on ? "on" : "off");
                if (is_on)
                        ah->stats.ast_ani_ccklow++;
                else
                        ah->stats.ast_ani_cckhigh++;
                aniState->mrcCCK = is_on;
                }
        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 ar9003_hw_do_getnf(struct ath_hw *ah,
                              int16_t nfarray[NUM_NF_READINGS])
{
#define AR_PHY_CH_MINCCA_PWR    0x1FF00000
#define AR_PHY_CH_MINCCA_PWR_S  20
#define AR_PHY_CH_EXT_MINCCA_PWR 0x01FF0000
#define AR_PHY_CH_EXT_MINCCA_PWR_S 16

        int16_t nf;
        int i;

        for (i = 0; i < AR9300_MAX_CHAINS; i++) {
                if (ah->rxchainmask & BIT(i)) {
                        nf = MS(REG_READ(ah, ah->nf_regs[i]),
                                         AR_PHY_CH_MINCCA_PWR);
                        nfarray[i] = sign_extend32(nf, 8);

                        if (IS_CHAN_HT40(ah->curchan)) {
                                u8 ext_idx = AR9300_MAX_CHAINS + i;

                                nf = MS(REG_READ(ah, ah->nf_regs[ext_idx]),
                                                 AR_PHY_CH_EXT_MINCCA_PWR);
                                nfarray[ext_idx] = sign_extend32(nf, 8);
                        }
                }
        }
}

static void ar9003_hw_set_nf_limits(struct ath_hw *ah)
{
        ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_2GHZ;
        ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_2GHZ;
        ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9300_2GHZ;
        ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_5GHZ;
        ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_5GHZ;
        ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9300_5GHZ;

        if (AR_SREV_9330(ah))
                ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9330_2GHZ;

        if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
                ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9462_2GHZ;
                ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9462_2GHZ;
                ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9462_5GHZ;
                ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9462_5GHZ;
        }
}

/*
 * 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 ar9003_hw_ani_cache_ini_regs(struct ath_hw *ah)
{
        struct ar5416AniState *aniState;
        struct ath_common *common = ath9k_hw_common(ah);
        struct ath9k_channel *chan = ah->curchan;
        struct ath9k_ani_default *iniDef;
        u32 val;

        aniState = &ah->ani;
        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_LOW_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_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 = true;
}

static void ar9003_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 ar9003_hw_set_radar_conf(struct ath_hw *ah)
{
        struct ath_hw_radar_conf *conf = &ah->radar_conf;

        conf->fir_power = -28;
        conf->radar_rssi = 0;
        conf->pulse_height = 10;
        conf->pulse_rssi = 24;
        conf->pulse_inband = 8;
        conf->pulse_maxlen = 255;
        conf->pulse_inband_step = 12;
        conf->radar_inband = 8;
}

static void ar9003_hw_antdiv_comb_conf_get(struct ath_hw *ah,
                                           struct ath_hw_antcomb_conf *antconf)
{
        u32 regval;

        regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
        antconf->main_lna_conf = (regval & AR_PHY_ANT_DIV_MAIN_LNACONF) >>
                                  AR_PHY_ANT_DIV_MAIN_LNACONF_S;
        antconf->alt_lna_conf = (regval & AR_PHY_ANT_DIV_ALT_LNACONF) >>
                                 AR_PHY_ANT_DIV_ALT_LNACONF_S;
        antconf->fast_div_bias = (regval & AR_PHY_ANT_FAST_DIV_BIAS) >>
                                  AR_PHY_ANT_FAST_DIV_BIAS_S;

        if (AR_SREV_9330_11(ah)) {
                antconf->lna1_lna2_switch_delta = -1;
                antconf->lna1_lna2_delta = -9;
                antconf->div_group = 1;
        } else if (AR_SREV_9485(ah)) {
                antconf->lna1_lna2_switch_delta = -1;
                antconf->lna1_lna2_delta = -9;
                antconf->div_group = 2;
        } else if (AR_SREV_9565(ah)) {
                antconf->lna1_lna2_switch_delta = 3;
                antconf->lna1_lna2_delta = -9;
                antconf->div_group = 3;
        } else {
                antconf->lna1_lna2_switch_delta = -1;
                antconf->lna1_lna2_delta = -3;
                antconf->div_group = 0;
        }
}

static void ar9003_hw_antdiv_comb_conf_set(struct ath_hw *ah,
                                   struct ath_hw_antcomb_conf *antconf)
{
        u32 regval;

        regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
        regval &= ~(AR_PHY_ANT_DIV_MAIN_LNACONF |
                    AR_PHY_ANT_DIV_ALT_LNACONF |
                    AR_PHY_ANT_FAST_DIV_BIAS |
                    AR_PHY_ANT_DIV_MAIN_GAINTB |
                    AR_PHY_ANT_DIV_ALT_GAINTB);
        regval |= ((antconf->main_lna_conf << AR_PHY_ANT_DIV_MAIN_LNACONF_S)
                   & AR_PHY_ANT_DIV_MAIN_LNACONF);
        regval |= ((antconf->alt_lna_conf << AR_PHY_ANT_DIV_ALT_LNACONF_S)
                   & AR_PHY_ANT_DIV_ALT_LNACONF);
        regval |= ((antconf->fast_div_bias << AR_PHY_ANT_FAST_DIV_BIAS_S)
                   & AR_PHY_ANT_FAST_DIV_BIAS);
        regval |= ((antconf->main_gaintb << AR_PHY_ANT_DIV_MAIN_GAINTB_S)
                   & AR_PHY_ANT_DIV_MAIN_GAINTB);
        regval |= ((antconf->alt_gaintb << AR_PHY_ANT_DIV_ALT_GAINTB_S)
                   & AR_PHY_ANT_DIV_ALT_GAINTB);

        REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
}

#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT

static void ar9003_hw_set_bt_ant_diversity(struct ath_hw *ah, bool enable)
{
        struct ath9k_hw_capabilities *pCap = &ah->caps;
        u8 ant_div_ctl1;
        u32 regval;

        if (!AR_SREV_9485(ah) && !AR_SREV_9565(ah))
                return;

        if (AR_SREV_9485(ah)) {
                regval = ar9003_hw_ant_ctrl_common_2_get(ah,
                                                 IS_CHAN_2GHZ(ah->curchan));
                if (enable) {
                        regval &= ~AR_SWITCH_TABLE_COM2_ALL;
                        regval |= ah->config.ant_ctrl_comm2g_switch_enable;
                }
                REG_RMW_FIELD(ah, AR_PHY_SWITCH_COM_2,
                              AR_SWITCH_TABLE_COM2_ALL, regval);
        }

        ant_div_ctl1 = ah->eep_ops->get_eeprom(ah, EEP_ANT_DIV_CTL1);

        /*
         * Set MAIN/ALT LNA conf.
         * Set MAIN/ALT gain_tb.
         */
        regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
        regval &= (~AR_ANT_DIV_CTRL_ALL);
        regval |= (ant_div_ctl1 & 0x3f) << AR_ANT_DIV_CTRL_ALL_S;
        REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);

        if (AR_SREV_9485_11_OR_LATER(ah)) {
                /*
                 * Enable LNA diversity.
                 */
                regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
                regval &= ~AR_PHY_ANT_DIV_LNADIV;
                regval |= ((ant_div_ctl1 >> 6) & 0x1) << AR_PHY_ANT_DIV_LNADIV_S;
                if (enable)
                        regval |= AR_ANT_DIV_ENABLE;

                REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);

                /*
                 * Enable fast antenna diversity.
                 */
                regval = REG_READ(ah, AR_PHY_CCK_DETECT);
                regval &= ~AR_FAST_DIV_ENABLE;
                regval |= ((ant_div_ctl1 >> 7) & 0x1) << AR_FAST_DIV_ENABLE_S;
                if (enable)
                        regval |= AR_FAST_DIV_ENABLE;

                REG_WRITE(ah, AR_PHY_CCK_DETECT, regval);

                if (pCap->hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB) {
                        regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
                        regval &= (~(AR_PHY_ANT_DIV_MAIN_LNACONF |
                                     AR_PHY_ANT_DIV_ALT_LNACONF |
                                     AR_PHY_ANT_DIV_ALT_GAINTB |
                                     AR_PHY_ANT_DIV_MAIN_GAINTB));
                        /*
                         * Set MAIN to LNA1 and ALT to LNA2 at the
                         * beginning.
                         */
                        regval |= (ATH_ANT_DIV_COMB_LNA1 <<
                                   AR_PHY_ANT_DIV_MAIN_LNACONF_S);
                        regval |= (ATH_ANT_DIV_COMB_LNA2 <<
                                   AR_PHY_ANT_DIV_ALT_LNACONF_S);
                        REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
                }
        } else if (AR_SREV_9565(ah)) {
                if (enable) {
                        REG_SET_BIT(ah, AR_PHY_MC_GAIN_CTRL,
                                    AR_ANT_DIV_ENABLE);
                        REG_SET_BIT(ah, AR_PHY_MC_GAIN_CTRL,
                                    (1 << AR_PHY_ANT_SW_RX_PROT_S));
                        REG_SET_BIT(ah, AR_PHY_CCK_DETECT,
                                    AR_FAST_DIV_ENABLE);
                        REG_SET_BIT(ah, AR_PHY_RESTART,
                                    AR_PHY_RESTART_ENABLE_DIV_M2FLAG);
                        REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV,
                                    AR_BTCOEX_WL_LNADIV_FORCE_ON);
                } else {
                        REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL,
                                    AR_ANT_DIV_ENABLE);
                        REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL,
                                    (1 << AR_PHY_ANT_SW_RX_PROT_S));
                        REG_CLR_BIT(ah, AR_PHY_CCK_DETECT,
                                    AR_FAST_DIV_ENABLE);
                        REG_CLR_BIT(ah, AR_PHY_RESTART,
                                    AR_PHY_RESTART_ENABLE_DIV_M2FLAG);
                        REG_CLR_BIT(ah, AR_BTCOEX_WL_LNADIV,
                                    AR_BTCOEX_WL_LNADIV_FORCE_ON);

                        regval = REG_READ(ah, AR_PHY_MC_GAIN_CTRL);
                        regval &= ~(AR_PHY_ANT_DIV_MAIN_LNACONF |
                                    AR_PHY_ANT_DIV_ALT_LNACONF |
                                    AR_PHY_ANT_DIV_MAIN_GAINTB |
                                    AR_PHY_ANT_DIV_ALT_GAINTB);
                        regval |= (ATH_ANT_DIV_COMB_LNA1 <<
                                   AR_PHY_ANT_DIV_MAIN_LNACONF_S);
                        regval |= (ATH_ANT_DIV_COMB_LNA2 <<
                                   AR_PHY_ANT_DIV_ALT_LNACONF_S);
                        REG_WRITE(ah, AR_PHY_MC_GAIN_CTRL, regval);
                }
        }
}

#endif

static int ar9003_hw_fast_chan_change(struct ath_hw *ah,
                                      struct ath9k_channel *chan,
                                      u8 *ini_reloaded)
{
        unsigned int regWrites = 0;
        u32 modesIndex;

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

        if (modesIndex == ah->modes_index) {
                *ini_reloaded = false;
                goto set_rfmode;
        }

        ar9003_hw_prog_ini(ah, &ah->iniSOC[ATH_INI_POST], modesIndex);
        ar9003_hw_prog_ini(ah, &ah->iniMac[ATH_INI_POST], modesIndex);
        ar9003_hw_prog_ini(ah, &ah->iniBB[ATH_INI_POST], modesIndex);
        ar9003_hw_prog_ini(ah, &ah->iniRadio[ATH_INI_POST], modesIndex);

        if (AR_SREV_9462_20_OR_LATER(ah))
                ar9003_hw_prog_ini(ah, &ah->ini_radio_post_sys2ant,
                                   modesIndex);

        REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);

        if (AR_SREV_9462_20_OR_LATER(ah)) {
                /*
                 * CUS217 mix LNA mode.
                 */
                if (ar9003_hw_get_rx_gain_idx(ah) == 2) {
                        REG_WRITE_ARRAY(&ah->ini_modes_rxgain_bb_core,
                                        1, regWrites);
                        REG_WRITE_ARRAY(&ah->ini_modes_rxgain_bb_postamble,
                                        modesIndex, regWrites);
                }
        }

        /*
         * For 5GHz channels requiring Fast Clock, apply
         * different modal values.
         */
        if (IS_CHAN_A_FAST_CLOCK(ah, chan))
                REG_WRITE_ARRAY(&ah->iniModesFastClock, modesIndex, regWrites);

        if (AR_SREV_9565(ah))
                REG_WRITE_ARRAY(&ah->iniModesFastClock, 1, regWrites);

        /*
         * JAPAN regulatory.
         */
        if (chan->channel == 2484)
                ar9003_hw_prog_ini(ah, &ah->iniCckfirJapan2484, 1);

        ah->modes_index = modesIndex;
        *ini_reloaded = true;

set_rfmode:
        ar9003_hw_set_rfmode(ah, chan);
        return 0;
}

static void ar9003_hw_spectral_scan_config(struct ath_hw *ah,
                                           struct ath_spec_scan *param)
{
        u8 count;

        if (!param->enabled) {
                REG_CLR_BIT(ah, AR_PHY_SPECTRAL_SCAN,
                            AR_PHY_SPECTRAL_SCAN_ENABLE);
                return;
        }

        REG_SET_BIT(ah, AR_PHY_RADAR_0, AR_PHY_RADAR_0_FFT_ENA);
        REG_SET_BIT(ah, AR_PHY_SPECTRAL_SCAN, AR_PHY_SPECTRAL_SCAN_ENABLE);

        /* on AR93xx and newer, count = 0 will make the the chip send
         * spectral samples endlessly. Check if this really was intended,
         * and fix otherwise.
         */
        count = param->count;
        if (param->endless)
                count = 0;
        else if (param->count == 0)
                count = 1;

        if (param->short_repeat)
                REG_SET_BIT(ah, AR_PHY_SPECTRAL_SCAN,
                            AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT);
        else
                REG_CLR_BIT(ah, AR_PHY_SPECTRAL_SCAN,
                            AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT);

        REG_RMW_FIELD(ah, AR_PHY_SPECTRAL_SCAN,
                      AR_PHY_SPECTRAL_SCAN_COUNT, count);
        REG_RMW_FIELD(ah, AR_PHY_SPECTRAL_SCAN,
                      AR_PHY_SPECTRAL_SCAN_PERIOD, param->period);
        REG_RMW_FIELD(ah, AR_PHY_SPECTRAL_SCAN,
                      AR_PHY_SPECTRAL_SCAN_FFT_PERIOD, param->fft_period);

        return;
}

static void ar9003_hw_spectral_scan_trigger(struct ath_hw *ah)
{
        /* Activate spectral scan */
        REG_SET_BIT(ah, AR_PHY_SPECTRAL_SCAN,
                    AR_PHY_SPECTRAL_SCAN_ACTIVE);
}

static void ar9003_hw_spectral_scan_wait(struct ath_hw *ah)
{
        struct ath_common *common = ath9k_hw_common(ah);

        /* Poll for spectral scan complete */
        if (!ath9k_hw_wait(ah, AR_PHY_SPECTRAL_SCAN,
                           AR_PHY_SPECTRAL_SCAN_ACTIVE,
                           0, AH_WAIT_TIMEOUT)) {
                ath_err(common, "spectral scan wait failed\n");
                return;
        }
}

static void ar9003_hw_tx99_start(struct ath_hw *ah, u32 qnum)
{
        REG_SET_BIT(ah, AR_PHY_TEST, PHY_AGC_CLR);
        REG_SET_BIT(ah, 0x9864, 0x7f000);
        REG_SET_BIT(ah, 0x9924, 0x7f00fe);
        REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS);
        REG_WRITE(ah, AR_CR, AR_CR_RXD);
        REG_WRITE(ah, AR_DLCL_IFS(qnum), 0);
        REG_WRITE(ah, AR_D_GBL_IFS_SIFS, 20); /* 50 OK */
        REG_WRITE(ah, AR_D_GBL_IFS_EIFS, 20);
        REG_WRITE(ah, AR_TIME_OUT, 0x00000400);
        REG_WRITE(ah, AR_DRETRY_LIMIT(qnum), 0xffffffff);
        REG_SET_BIT(ah, AR_QMISC(qnum), AR_Q_MISC_DCU_EARLY_TERM_REQ);
}

static void ar9003_hw_tx99_stop(struct ath_hw *ah)
{
        REG_CLR_BIT(ah, AR_PHY_TEST, PHY_AGC_CLR);
        REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS);
}

static void ar9003_hw_tx99_set_txpower(struct ath_hw *ah, u8 txpower)
{
        static s16 p_pwr_array[ar9300RateSize] = { 0 };
        unsigned int i;

        if (txpower <= MAX_RATE_POWER) {
                for (i = 0; i < ar9300RateSize; i++)
                        p_pwr_array[i] = txpower;
        } else {
                for (i = 0; i < ar9300RateSize; i++)
                        p_pwr_array[i] = MAX_RATE_POWER;
        }

        REG_WRITE(ah, 0xa458, 0);

        REG_WRITE(ah, 0xa3c0,
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_6_24], 24) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_6_24], 16) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_6_24],  8) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_6_24],  0));
        REG_WRITE(ah, 0xa3c4,
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_54],  24) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_48],  16) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_36],   8) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_6_24], 0));
        REG_WRITE(ah, 0xa3c8,
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_1L_5L], 24) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_1L_5L], 16) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_1L_5L],  0));
        REG_WRITE(ah, 0xa3cc,
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_11S],   24) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_11L],   16) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_5S],     8) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_1L_5L],  0));
        REG_WRITE(ah, 0xa3d0,
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_5],  24) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_4],  16) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_1_3_9_11_17_19], 8)|
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_0_8_16], 0));
        REG_WRITE(ah, 0xa3d4,
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_13], 24) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_12], 16) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_7],   8) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_6],   0));
        REG_WRITE(ah, 0xa3e4,
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_21], 24) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_20], 16) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_15],  8) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_14],  0));
        REG_WRITE(ah, 0xa3e8,
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_23], 24) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_22], 16) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_23],  8) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_22],  0));
        REG_WRITE(ah, 0xa3d8,
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_5], 24) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_4], 16) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_1_3_9_11_17_19], 8) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_0_8_16], 0));
        REG_WRITE(ah, 0xa3dc,
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_13], 24) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_12], 16) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_7],   8) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_6],   0));
        REG_WRITE(ah, 0xa3ec,
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_21], 24) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_20], 16) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_15],  8) |
                  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_14],  0));
}

void ar9003_hw_attach_phy_ops(struct ath_hw *ah)
{
        struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
        struct ath_hw_ops *ops = ath9k_hw_ops(ah);
        static const u32 ar9300_cca_regs[6] = {
                AR_PHY_CCA_0,
                AR_PHY_CCA_1,
                AR_PHY_CCA_2,
                AR_PHY_EXT_CCA,
                AR_PHY_EXT_CCA_1,
                AR_PHY_EXT_CCA_2,
        };

        priv_ops->rf_set_freq = ar9003_hw_set_channel;
        priv_ops->spur_mitigate_freq = ar9003_hw_spur_mitigate;
        priv_ops->compute_pll_control = ar9003_hw_compute_pll_control;
        priv_ops->set_channel_regs = ar9003_hw_set_channel_regs;
        priv_ops->init_bb = ar9003_hw_init_bb;
        priv_ops->process_ini = ar9003_hw_process_ini;
        priv_ops->set_rfmode = ar9003_hw_set_rfmode;
        priv_ops->mark_phy_inactive = ar9003_hw_mark_phy_inactive;
        priv_ops->set_delta_slope = ar9003_hw_set_delta_slope;
        priv_ops->rfbus_req = ar9003_hw_rfbus_req;
        priv_ops->rfbus_done = ar9003_hw_rfbus_done;
        priv_ops->ani_control = ar9003_hw_ani_control;
        priv_ops->do_getnf = ar9003_hw_do_getnf;
        priv_ops->ani_cache_ini_regs = ar9003_hw_ani_cache_ini_regs;
        priv_ops->set_radar_params = ar9003_hw_set_radar_params;
        priv_ops->fast_chan_change = ar9003_hw_fast_chan_change;

        ops->antdiv_comb_conf_get = ar9003_hw_antdiv_comb_conf_get;
        ops->antdiv_comb_conf_set = ar9003_hw_antdiv_comb_conf_set;
        ops->spectral_scan_config = ar9003_hw_spectral_scan_config;
        ops->spectral_scan_trigger = ar9003_hw_spectral_scan_trigger;
        ops->spectral_scan_wait = ar9003_hw_spectral_scan_wait;

#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
        ops->set_bt_ant_diversity = ar9003_hw_set_bt_ant_diversity;
#endif
        ops->tx99_start = ar9003_hw_tx99_start;
        ops->tx99_stop = ar9003_hw_tx99_stop;
        ops->tx99_set_txpower = ar9003_hw_tx99_set_txpower;

        ar9003_hw_set_nf_limits(ah);
        ar9003_hw_set_radar_conf(ah);
        memcpy(ah->nf_regs, ar9300_cca_regs, sizeof(ah->nf_regs));
}

void ar9003_hw_bb_watchdog_config(struct ath_hw *ah)
{
        struct ath_common *common = ath9k_hw_common(ah);
        u32 idle_tmo_ms = ah->bb_watchdog_timeout_ms;
        u32 val, idle_count;

        if (!idle_tmo_ms) {
                /* disable IRQ, disable chip-reset for BB panic */
                REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2,
                          REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) &
                          ~(AR_PHY_WATCHDOG_RST_ENABLE |
                            AR_PHY_WATCHDOG_IRQ_ENABLE));

                /* disable watchdog in non-IDLE mode, disable in IDLE mode */
                REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1,
                          REG_READ(ah, AR_PHY_WATCHDOG_CTL_1) &
                          ~(AR_PHY_WATCHDOG_NON_IDLE_ENABLE |
                            AR_PHY_WATCHDOG_IDLE_ENABLE));

                ath_dbg(common, RESET, "Disabled BB Watchdog\n");
                return;
        }

        /* enable IRQ, disable chip-reset for BB watchdog */
        val = REG_READ(ah, AR_PHY_WATCHDOG_CTL_2) & AR_PHY_WATCHDOG_CNTL2_MASK;
        REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_2,
                  (val | AR_PHY_WATCHDOG_IRQ_ENABLE) &
                  ~AR_PHY_WATCHDOG_RST_ENABLE);

        /* bound limit to 10 secs */
        if (idle_tmo_ms > 10000)
                idle_tmo_ms = 10000;

        /*
         * The time unit for watchdog event is 2^15 44/88MHz cycles.
         *
         * For HT20 we have a time unit of 2^15/44 MHz = .74 ms per tick
         * For HT40 we have a time unit of 2^15/88 MHz = .37 ms per tick
         *
         * Given we use fast clock now in 5 GHz, these time units should
         * be common for both 2 GHz and 5 GHz.
         */
        idle_count = (100 * idle_tmo_ms) / 74;
        if (ah->curchan && IS_CHAN_HT40(ah->curchan))
                idle_count = (100 * idle_tmo_ms) / 37;

        /*
         * enable watchdog in non-IDLE mode, disable in IDLE mode,
         * set idle time-out.
         */
        REG_WRITE(ah, AR_PHY_WATCHDOG_CTL_1,
                  AR_PHY_WATCHDOG_NON_IDLE_ENABLE |
                  AR_PHY_WATCHDOG_IDLE_MASK |
                  (AR_PHY_WATCHDOG_NON_IDLE_MASK & (idle_count << 2)));

        ath_dbg(common, RESET, "Enabled BB Watchdog timeout (%u ms)\n",
                idle_tmo_ms);
}

void ar9003_hw_bb_watchdog_read(struct ath_hw *ah)
{
        /*
         * we want to avoid printing in ISR context so we save the
         * watchdog status to be printed later in bottom half context.
         */
        ah->bb_watchdog_last_status = REG_READ(ah, AR_PHY_WATCHDOG_STATUS);

        /*
         * the watchdog timer should reset on status read but to be sure
         * sure we write 0 to the watchdog status bit.
         */
        REG_WRITE(ah, AR_PHY_WATCHDOG_STATUS,
                  ah->bb_watchdog_last_status & ~AR_PHY_WATCHDOG_STATUS_CLR);
}

void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah)
{
        struct ath_common *common = ath9k_hw_common(ah);
        u32 status;

        if (likely(!(common->debug_mask & ATH_DBG_RESET)))
                return;

        status = ah->bb_watchdog_last_status;
        ath_dbg(common, RESET,
                "\n==== BB update: BB status=0x%08x ====\n", status);
        ath_dbg(common, RESET,
                "** BB state: wd=%u det=%u rdar=%u rOFDM=%d rCCK=%u tOFDM=%u tCCK=%u agc=%u src=%u **\n",
                MS(status, AR_PHY_WATCHDOG_INFO),
                MS(status, AR_PHY_WATCHDOG_DET_HANG),
                MS(status, AR_PHY_WATCHDOG_RADAR_SM),
                MS(status, AR_PHY_WATCHDOG_RX_OFDM_SM),
                MS(status, AR_PHY_WATCHDOG_RX_CCK_SM),
                MS(status, AR_PHY_WATCHDOG_TX_OFDM_SM),
                MS(status, AR_PHY_WATCHDOG_TX_CCK_SM),
                MS(status, AR_PHY_WATCHDOG_AGC_SM),
                MS(status, AR_PHY_WATCHDOG_SRCH_SM));

        ath_dbg(common, RESET, "** BB WD cntl: cntl1=0x%08x cntl2=0x%08x **\n",
                REG_READ(ah, AR_PHY_WATCHDOG_CTL_1),
                REG_READ(ah, AR_PHY_WATCHDOG_CTL_2));
        ath_dbg(common, RESET, "** BB mode: BB_gen_controls=0x%08x **\n",
                REG_READ(ah, AR_PHY_GEN_CTRL));

#define PCT(_field) (common->cc_survey._field * 100 / common->cc_survey.cycles)
        if (common->cc_survey.cycles)
                ath_dbg(common, RESET,
                        "** BB busy times: rx_clear=%d%%, rx_frame=%d%%, tx_frame=%d%% **\n",
                        PCT(rx_busy), PCT(rx_frame), PCT(tx_frame));

        ath_dbg(common, RESET, "==== BB update: done ====\n\n");
}
EXPORT_SYMBOL(ar9003_hw_bb_watchdog_dbg_info);

void ar9003_hw_disable_phy_restart(struct ath_hw *ah)
{
        u32 val;

        /* While receiving unsupported rate frame rx state machine
         * gets into a state 0xb and if phy_restart happens in that
         * state, BB would go hang. If RXSM is in 0xb state after
         * first bb panic, ensure to disable the phy_restart.
         */
        if (!((MS(ah->bb_watchdog_last_status,
                  AR_PHY_WATCHDOG_RX_OFDM_SM) == 0xb) ||
            ah->bb_hang_rx_ofdm))
                return;

        ah->bb_hang_rx_ofdm = true;
        val = REG_READ(ah, AR_PHY_RESTART);
        val &= ~AR_PHY_RESTART_ENA;

        REG_WRITE(ah, AR_PHY_RESTART, val);
}
EXPORT_SYMBOL(ar9003_hw_disable_phy_restart);