2010-04-16 05:38:19 +08:00
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/*
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* Copyright (c) 2010 Atheros Communications Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "hw.h"
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2010-04-16 05:38:31 +08:00
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#include "ar9003_phy.h"
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2010-04-16 05:38:19 +08:00
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/**
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* ar9003_hw_set_channel - set channel on single-chip device
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* @ah: atheros hardware structure
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* @chan:
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*
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* This is the function to change channel on single-chip devices, that is
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* all devices after ar9280.
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*
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* This function takes the channel value in MHz and sets
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* hardware channel value. Assumes writes have been enabled to analog bus.
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*
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* Actual Expression,
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*
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* For 2GHz channel,
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* Channel Frequency = (3/4) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17)
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* (freq_ref = 40MHz)
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*
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* For 5GHz channel,
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* Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^10)
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* (freq_ref = 40MHz/(24>>amodeRefSel))
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*
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* For 5GHz channels which are 5MHz spaced,
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* Channel Frequency = (3/2) * freq_ref * (chansel[8:0] + chanfrac[16:0]/2^17)
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* (freq_ref = 40MHz)
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*/
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static int ar9003_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
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{
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2010-04-16 05:38:33 +08:00
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u16 bMode, fracMode = 0, aModeRefSel = 0;
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u32 freq, channelSel = 0, reg32 = 0;
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struct chan_centers centers;
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int loadSynthChannel;
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ath9k_hw_get_channel_centers(ah, chan, ¢ers);
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freq = centers.synth_center;
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if (freq < 4800) { /* 2 GHz, fractional mode */
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channelSel = CHANSEL_2G(freq);
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/* Set to 2G mode */
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bMode = 1;
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} else {
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channelSel = CHANSEL_5G(freq);
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/* Doubler is ON, so, divide channelSel by 2. */
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channelSel >>= 1;
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/* Set to 5G mode */
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bMode = 0;
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}
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/* Enable fractional mode for all channels */
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fracMode = 1;
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aModeRefSel = 0;
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loadSynthChannel = 0;
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reg32 = (bMode << 29);
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REG_WRITE(ah, AR_PHY_SYNTH_CONTROL, reg32);
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/* Enable Long shift Select for Synthesizer */
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REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_SYNTH4,
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AR_PHY_SYNTH4_LONG_SHIFT_SELECT, 1);
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/* Program Synth. setting */
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reg32 = (channelSel << 2) | (fracMode << 30) |
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(aModeRefSel << 28) | (loadSynthChannel << 31);
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REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);
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/* Toggle Load Synth channel bit */
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loadSynthChannel = 1;
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reg32 = (channelSel << 2) | (fracMode << 30) |
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(aModeRefSel << 28) | (loadSynthChannel << 31);
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REG_WRITE(ah, AR_PHY_65NM_CH0_SYNTH7, reg32);
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ah->curchan = chan;
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ah->curchan_rad_index = -1;
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2010-04-16 05:38:19 +08:00
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return 0;
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}
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/**
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* ar9003_hw_spur_mitigate - convert baseband spur frequency
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* @ah: atheros hardware structure
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* @chan:
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*
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* For single-chip solutions. Converts to baseband spur frequency given the
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* input channel frequency and compute register settings below.
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*
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* Spur mitigation for MRC CCK
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*/
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2010-04-16 05:39:15 +08:00
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static void ar9003_hw_spur_mitigate_mrc_cck(struct ath_hw *ah,
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struct ath9k_channel *chan)
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2010-04-16 05:38:19 +08:00
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{
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2010-04-16 05:38:35 +08:00
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u32 spur_freq[4] = { 2420, 2440, 2464, 2480 };
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int cur_bb_spur, negative = 0, cck_spur_freq;
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int i;
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/*
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* Need to verify range +/- 10 MHz in control channel, otherwise spur
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* is out-of-band and can be ignored.
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*/
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for (i = 0; i < 4; i++) {
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negative = 0;
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cur_bb_spur = spur_freq[i] - chan->channel;
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if (cur_bb_spur < 0) {
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negative = 1;
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cur_bb_spur = -cur_bb_spur;
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}
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if (cur_bb_spur < 10) {
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cck_spur_freq = (int)((cur_bb_spur << 19) / 11);
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if (negative == 1)
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cck_spur_freq = -cck_spur_freq;
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cck_spur_freq = cck_spur_freq & 0xfffff;
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REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
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AR_PHY_AGC_CONTROL_YCOK_MAX, 0x7);
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REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
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AR_PHY_CCK_SPUR_MIT_SPUR_RSSI_THR, 0x7f);
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REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
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AR_PHY_CCK_SPUR_MIT_SPUR_FILTER_TYPE,
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0x2);
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REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
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AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT,
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0x1);
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REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
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AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ,
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cck_spur_freq);
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return;
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}
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}
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REG_RMW_FIELD(ah, AR_PHY_AGC_CONTROL,
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AR_PHY_AGC_CONTROL_YCOK_MAX, 0x5);
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REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
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AR_PHY_CCK_SPUR_MIT_USE_CCK_SPUR_MIT, 0x0);
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REG_RMW_FIELD(ah, AR_PHY_CCK_SPUR_MIT,
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AR_PHY_CCK_SPUR_MIT_CCK_SPUR_FREQ, 0x0);
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2010-04-16 05:38:19 +08:00
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}
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2010-04-16 05:39:15 +08:00
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/* Clean all spur register fields */
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static void ar9003_hw_spur_ofdm_clear(struct ath_hw *ah)
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{
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REG_RMW_FIELD(ah, AR_PHY_TIMING4,
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AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0);
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REG_RMW_FIELD(ah, AR_PHY_TIMING11,
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AR_PHY_TIMING11_SPUR_FREQ_SD, 0);
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REG_RMW_FIELD(ah, AR_PHY_TIMING11,
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AR_PHY_TIMING11_SPUR_DELTA_PHASE, 0);
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REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
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AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, 0);
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REG_RMW_FIELD(ah, AR_PHY_TIMING11,
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AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0);
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REG_RMW_FIELD(ah, AR_PHY_TIMING11,
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AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0);
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REG_RMW_FIELD(ah, AR_PHY_TIMING4,
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AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0);
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REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
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AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 0);
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REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
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AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 0);
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REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
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AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0);
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REG_RMW_FIELD(ah, AR_PHY_TIMING4,
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AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0);
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REG_RMW_FIELD(ah, AR_PHY_TIMING4,
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AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0);
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REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
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AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, 0);
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REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
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AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, 0);
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REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
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AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, 0);
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REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
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AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0);
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REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
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AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0);
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REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
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AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0);
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REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
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AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0);
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}
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static void ar9003_hw_spur_ofdm(struct ath_hw *ah,
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int freq_offset,
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int spur_freq_sd,
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int spur_delta_phase,
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int spur_subchannel_sd)
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{
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int mask_index = 0;
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/* OFDM Spur mitigation */
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REG_RMW_FIELD(ah, AR_PHY_TIMING4,
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AR_PHY_TIMING4_ENABLE_SPUR_FILTER, 0x1);
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REG_RMW_FIELD(ah, AR_PHY_TIMING11,
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AR_PHY_TIMING11_SPUR_FREQ_SD, spur_freq_sd);
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REG_RMW_FIELD(ah, AR_PHY_TIMING11,
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AR_PHY_TIMING11_SPUR_DELTA_PHASE, spur_delta_phase);
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REG_RMW_FIELD(ah, AR_PHY_SFCORR_EXT,
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AR_PHY_SFCORR_EXT_SPUR_SUBCHANNEL_SD, spur_subchannel_sd);
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REG_RMW_FIELD(ah, AR_PHY_TIMING11,
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AR_PHY_TIMING11_USE_SPUR_FILTER_IN_AGC, 0x1);
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REG_RMW_FIELD(ah, AR_PHY_TIMING11,
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AR_PHY_TIMING11_USE_SPUR_FILTER_IN_SELFCOR, 0x1);
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REG_RMW_FIELD(ah, AR_PHY_TIMING4,
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AR_PHY_TIMING4_ENABLE_SPUR_RSSI, 0x1);
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REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
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AR_PHY_SPUR_REG_SPUR_RSSI_THRESH, 34);
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REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
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AR_PHY_SPUR_REG_EN_VIT_SPUR_RSSI, 1);
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if (REG_READ_FIELD(ah, AR_PHY_MODE,
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AR_PHY_MODE_DYNAMIC) == 0x1)
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REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
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AR_PHY_SPUR_REG_ENABLE_NF_RSSI_SPUR_MIT, 1);
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mask_index = (freq_offset << 4) / 5;
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if (mask_index < 0)
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mask_index = mask_index - 1;
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mask_index = mask_index & 0x7f;
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REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
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AR_PHY_SPUR_REG_ENABLE_MASK_PPM, 0x1);
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REG_RMW_FIELD(ah, AR_PHY_TIMING4,
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AR_PHY_TIMING4_ENABLE_PILOT_MASK, 0x1);
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REG_RMW_FIELD(ah, AR_PHY_TIMING4,
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AR_PHY_TIMING4_ENABLE_CHAN_MASK, 0x1);
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REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
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AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_IDX_A, mask_index);
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REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
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AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_IDX_A, mask_index);
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REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
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AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_IDX_A, mask_index);
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REG_RMW_FIELD(ah, AR_PHY_PILOT_SPUR_MASK,
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AR_PHY_PILOT_SPUR_MASK_CF_PILOT_MASK_A, 0xc);
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REG_RMW_FIELD(ah, AR_PHY_CHAN_SPUR_MASK,
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AR_PHY_CHAN_SPUR_MASK_CF_CHAN_MASK_A, 0xc);
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REG_RMW_FIELD(ah, AR_PHY_SPUR_MASK_A,
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AR_PHY_SPUR_MASK_A_CF_PUNC_MASK_A, 0xa0);
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REG_RMW_FIELD(ah, AR_PHY_SPUR_REG,
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AR_PHY_SPUR_REG_MASK_RATE_CNTL, 0xff);
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}
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static void ar9003_hw_spur_ofdm_work(struct ath_hw *ah,
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struct ath9k_channel *chan,
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int freq_offset)
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{
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int spur_freq_sd = 0;
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int spur_subchannel_sd = 0;
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int spur_delta_phase = 0;
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if (IS_CHAN_HT40(chan)) {
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if (freq_offset < 0) {
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if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
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AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
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spur_subchannel_sd = 1;
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else
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spur_subchannel_sd = 0;
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spur_freq_sd = ((freq_offset + 10) << 9) / 11;
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} else {
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if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
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AR_PHY_GC_DYN2040_PRI_CH) == 0x0)
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spur_subchannel_sd = 0;
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else
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spur_subchannel_sd = 1;
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spur_freq_sd = ((freq_offset - 10) << 9) / 11;
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}
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spur_delta_phase = (freq_offset << 17) / 5;
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} else {
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spur_subchannel_sd = 0;
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spur_freq_sd = (freq_offset << 9) /11;
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spur_delta_phase = (freq_offset << 18) / 5;
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}
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spur_freq_sd = spur_freq_sd & 0x3ff;
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spur_delta_phase = spur_delta_phase & 0xfffff;
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ar9003_hw_spur_ofdm(ah,
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freq_offset,
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spur_freq_sd,
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spur_delta_phase,
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spur_subchannel_sd);
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}
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|
|
|
|
|
/* 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; spurChansPtr[i] && i < 5; i++) {
|
|
|
|
freq_offset = FBIN2FREQ(spurChansPtr[i], mode) - synth_freq;
|
|
|
|
if (abs(freq_offset) < range) {
|
|
|
|
ar9003_hw_spur_ofdm_work(ah, chan, freq_offset);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void ar9003_hw_spur_mitigate(struct ath_hw *ah,
|
|
|
|
struct ath9k_channel *chan)
|
|
|
|
{
|
|
|
|
ar9003_hw_spur_mitigate_mrc_cck(ah, chan);
|
|
|
|
ar9003_hw_spur_mitigate_ofdm(ah, chan);
|
|
|
|
}
|
|
|
|
|
2010-04-16 05:38:19 +08:00
|
|
|
static u32 ar9003_hw_compute_pll_control(struct ath_hw *ah,
|
|
|
|
struct ath9k_channel *chan)
|
|
|
|
{
|
2010-04-16 05:38:34 +08:00
|
|
|
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);
|
|
|
|
|
2010-04-27 03:04:30 +08:00
|
|
|
pll |= SM(0x2c, AR_RTC_9300_PLL_DIV);
|
2010-04-16 05:38:34 +08:00
|
|
|
|
|
|
|
return pll;
|
2010-04-16 05:38:19 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static void ar9003_hw_set_channel_regs(struct ath_hw *ah,
|
|
|
|
struct ath9k_channel *chan)
|
|
|
|
{
|
2010-04-16 05:38:38 +08:00
|
|
|
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_WALSH |
|
|
|
|
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 ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
|
|
|
|
(chan->chanmode == CHANNEL_G_HT40PLUS))
|
|
|
|
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);
|
|
|
|
|
|
|
|
/* 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);
|
2010-04-16 05:38:19 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static void ar9003_hw_init_bb(struct ath_hw *ah,
|
|
|
|
struct ath9k_channel *chan)
|
|
|
|
{
|
2010-04-16 05:38:40 +08:00
|
|
|
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;
|
|
|
|
if (IS_CHAN_B(chan))
|
|
|
|
synthDelay = (4 * synthDelay) / 22;
|
|
|
|
else
|
|
|
|
synthDelay /= 10;
|
|
|
|
|
|
|
|
/* Activate the PHY (includes baseband activate + synthesizer on) */
|
|
|
|
REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* There is an issue if the AP starts the calibration before
|
|
|
|
* the base band timeout completes. This could result in the
|
|
|
|
* rx_clear false triggering. As a workaround we add delay an
|
|
|
|
* extra BASE_ACTIVATE_DELAY usecs to ensure this condition
|
|
|
|
* does not happen.
|
|
|
|
*/
|
|
|
|
udelay(synthDelay + BASE_ACTIVATE_DELAY);
|
2010-04-16 05:38:19 +08:00
|
|
|
}
|
|
|
|
|
2010-04-16 05:38:38 +08:00
|
|
|
void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx)
|
|
|
|
{
|
|
|
|
switch (rx) {
|
|
|
|
case 0x5:
|
|
|
|
REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
|
|
|
|
AR_PHY_SWAP_ALT_CHAIN);
|
|
|
|
case 0x3:
|
|
|
|
case 0x1:
|
|
|
|
case 0x2:
|
|
|
|
case 0x7:
|
|
|
|
REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx);
|
|
|
|
REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
REG_WRITE(ah, AR_SELFGEN_MASK, tx);
|
|
|
|
if (tx == 0x5) {
|
|
|
|
REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
|
|
|
|
AR_PHY_SWAP_ALT_CHAIN);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 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);
|
|
|
|
REG_WRITE(ah, AR_PCU_MISC_MODE2,
|
|
|
|
val | AR_AGG_WEP_ENABLE_FIX | AR_AGG_WEP_ENABLE);
|
|
|
|
}
|
|
|
|
|
|
|
|
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);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Determine if this is a shift register value, and insert the
|
|
|
|
* configured delay if so.
|
|
|
|
*/
|
|
|
|
if (reg >= 0x16000 && reg < 0x17000
|
|
|
|
&& ah->config.analog_shiftreg)
|
|
|
|
udelay(100);
|
|
|
|
|
|
|
|
DO_DELAY(regWrites);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2010-04-16 05:38:19 +08:00
|
|
|
static int ar9003_hw_process_ini(struct ath_hw *ah,
|
|
|
|
struct ath9k_channel *chan)
|
|
|
|
{
|
2010-04-16 05:38:38 +08:00
|
|
|
struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
|
|
|
|
unsigned int regWrites = 0, i;
|
|
|
|
struct ieee80211_channel *channel = chan->chan;
|
|
|
|
u32 modesIndex, freqIndex;
|
|
|
|
|
|
|
|
switch (chan->chanmode) {
|
|
|
|
case CHANNEL_A:
|
|
|
|
case CHANNEL_A_HT20:
|
|
|
|
modesIndex = 1;
|
|
|
|
freqIndex = 1;
|
|
|
|
break;
|
|
|
|
case CHANNEL_A_HT40PLUS:
|
|
|
|
case CHANNEL_A_HT40MINUS:
|
|
|
|
modesIndex = 2;
|
|
|
|
freqIndex = 1;
|
|
|
|
break;
|
|
|
|
case CHANNEL_G:
|
|
|
|
case CHANNEL_G_HT20:
|
|
|
|
case CHANNEL_B:
|
|
|
|
modesIndex = 4;
|
|
|
|
freqIndex = 2;
|
|
|
|
break;
|
|
|
|
case CHANNEL_G_HT40PLUS:
|
|
|
|
case CHANNEL_G_HT40MINUS:
|
|
|
|
modesIndex = 3;
|
|
|
|
freqIndex = 2;
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
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);
|
|
|
|
}
|
|
|
|
|
|
|
|
REG_WRITE_ARRAY(&ah->iniModesRxGain, 1, regWrites);
|
|
|
|
REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* For 5GHz channels requiring Fast Clock, apply
|
|
|
|
* different modal values.
|
|
|
|
*/
|
2010-04-27 03:04:35 +08:00
|
|
|
if (IS_CHAN_A_FAST_CLOCK(ah, chan))
|
2010-04-16 05:38:38 +08:00
|
|
|
REG_WRITE_ARRAY(&ah->iniModesAdditional,
|
|
|
|
modesIndex, regWrites);
|
|
|
|
|
|
|
|
ar9003_hw_override_ini(ah);
|
|
|
|
ar9003_hw_set_channel_regs(ah, chan);
|
|
|
|
ar9003_hw_set_chain_masks(ah, ah->rxchainmask, ah->txchainmask);
|
|
|
|
|
|
|
|
/* Set TX power */
|
|
|
|
ah->eep_ops->set_txpower(ah, chan,
|
|
|
|
ath9k_regd_get_ctl(regulatory, chan),
|
|
|
|
channel->max_antenna_gain * 2,
|
|
|
|
channel->max_power * 2,
|
|
|
|
min((u32) MAX_RATE_POWER,
|
|
|
|
(u32) regulatory->power_limit));
|
|
|
|
|
|
|
|
return 0;
|
2010-04-16 05:38:19 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static void ar9003_hw_set_rfmode(struct ath_hw *ah,
|
|
|
|
struct ath9k_channel *chan)
|
|
|
|
{
|
2010-04-16 05:38:40 +08:00
|
|
|
u32 rfMode = 0;
|
|
|
|
|
|
|
|
if (chan == NULL)
|
|
|
|
return;
|
|
|
|
|
|
|
|
rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
|
|
|
|
? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
|
|
|
|
|
2010-04-27 03:04:35 +08:00
|
|
|
if (IS_CHAN_A_FAST_CLOCK(ah, chan))
|
2010-04-16 05:38:40 +08:00
|
|
|
rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);
|
|
|
|
|
|
|
|
REG_WRITE(ah, AR_PHY_MODE, rfMode);
|
2010-04-16 05:38:19 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static void ar9003_hw_mark_phy_inactive(struct ath_hw *ah)
|
|
|
|
{
|
2010-04-16 05:38:40 +08:00
|
|
|
REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
|
2010-04-16 05:38:19 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static void ar9003_hw_set_delta_slope(struct ath_hw *ah,
|
|
|
|
struct ath9k_channel *chan)
|
|
|
|
{
|
2010-04-16 05:38:40 +08:00
|
|
|
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, ¢ers);
|
|
|
|
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);
|
2010-04-16 05:38:19 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static bool ar9003_hw_rfbus_req(struct ath_hw *ah)
|
|
|
|
{
|
2010-04-16 05:38:40 +08:00
|
|
|
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);
|
2010-04-16 05:38:19 +08:00
|
|
|
}
|
|
|
|
|
2010-04-16 05:38:40 +08:00
|
|
|
/*
|
|
|
|
* 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.
|
|
|
|
*/
|
2010-04-16 05:38:19 +08:00
|
|
|
static void ar9003_hw_rfbus_done(struct ath_hw *ah)
|
|
|
|
{
|
2010-04-16 05:38:40 +08:00
|
|
|
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);
|
2010-04-16 05:38:19 +08:00
|
|
|
}
|
|
|
|
|
2010-04-16 05:38:40 +08:00
|
|
|
/*
|
|
|
|
* Set the interrupt and GPIO values so the ISR can disable RF
|
|
|
|
* on a switch signal. Assumes GPIO port and interrupt polarity
|
|
|
|
* are set prior to call.
|
|
|
|
*/
|
2010-04-16 05:38:19 +08:00
|
|
|
static void ar9003_hw_enable_rfkill(struct ath_hw *ah)
|
|
|
|
{
|
2010-04-16 05:38:40 +08:00
|
|
|
/* Connect rfsilent_bb_l to baseband */
|
|
|
|
REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL,
|
|
|
|
AR_GPIO_INPUT_EN_VAL_RFSILENT_BB);
|
|
|
|
/* Set input mux for rfsilent_bb_l to GPIO #0 */
|
|
|
|
REG_CLR_BIT(ah, AR_GPIO_INPUT_MUX2,
|
|
|
|
AR_GPIO_INPUT_MUX2_RFSILENT);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Configure the desired GPIO port for input and
|
|
|
|
* enable baseband rf silence.
|
|
|
|
*/
|
|
|
|
ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
|
|
|
|
REG_SET_BIT(ah, AR_PHY_TEST, RFSILENT_BB);
|
2010-04-16 05:38:19 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static void ar9003_hw_set_diversity(struct ath_hw *ah, bool value)
|
|
|
|
{
|
2010-04-16 05:38:40 +08:00
|
|
|
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);
|
2010-04-16 05:38:19 +08:00
|
|
|
}
|
|
|
|
|
2010-04-16 05:38:39 +08:00
|
|
|
static bool ar9003_hw_ani_control(struct ath_hw *ah,
|
|
|
|
enum ath9k_ani_cmd cmd, int param)
|
|
|
|
{
|
2010-04-16 05:38:40 +08:00
|
|
|
struct ar5416AniState *aniState = ah->curani;
|
|
|
|
struct ath_common *common = ath9k_hw_common(ah);
|
|
|
|
|
|
|
|
switch (cmd & ah->ani_function) {
|
|
|
|
case ATH9K_ANI_NOISE_IMMUNITY_LEVEL:{
|
|
|
|
u32 level = param;
|
|
|
|
|
|
|
|
if (level >= ARRAY_SIZE(ah->totalSizeDesired)) {
|
|
|
|
ath_print(common, ATH_DBG_ANI,
|
|
|
|
"level out of range (%u > %u)\n",
|
|
|
|
level,
|
|
|
|
(unsigned)ARRAY_SIZE(ah->totalSizeDesired));
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
REG_RMW_FIELD(ah, AR_PHY_DESIRED_SZ,
|
|
|
|
AR_PHY_DESIRED_SZ_TOT_DES,
|
|
|
|
ah->totalSizeDesired[level]);
|
|
|
|
REG_RMW_FIELD(ah, AR_PHY_AGC,
|
|
|
|
AR_PHY_AGC_COARSE_LOW,
|
|
|
|
ah->coarse_low[level]);
|
|
|
|
REG_RMW_FIELD(ah, AR_PHY_AGC,
|
|
|
|
AR_PHY_AGC_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:{
|
|
|
|
const int m1ThreshLow[] = { 127, 50 };
|
|
|
|
const int m2ThreshLow[] = { 127, 40 };
|
|
|
|
const int m1Thresh[] = { 127, 0x4d };
|
|
|
|
const int m2Thresh[] = { 127, 0x40 };
|
|
|
|
const int m2CountThr[] = { 31, 16 };
|
|
|
|
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->ofdmWeakSigDetectOff) {
|
|
|
|
if (on)
|
|
|
|
ah->stats.ast_ani_ofdmon++;
|
|
|
|
else
|
|
|
|
ah->stats.ast_ani_ofdmoff++;
|
|
|
|
aniState->ofdmWeakSigDetectOff = !on;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
case ATH9K_ANI_CCK_WEAK_SIGNAL_THR:{
|
|
|
|
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:{
|
|
|
|
const int firstep[] = { 0, 4, 8 };
|
|
|
|
u32 level = param;
|
|
|
|
|
|
|
|
if (level >= ARRAY_SIZE(firstep)) {
|
|
|
|
ath_print(common, ATH_DBG_ANI,
|
|
|
|
"level out of range (%u > %u)\n",
|
|
|
|
level,
|
|
|
|
(unsigned) ARRAY_SIZE(firstep));
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
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:{
|
|
|
|
const int cycpwrThr1[] = { 2, 4, 6, 8, 10, 12, 14, 16 };
|
|
|
|
u32 level = param;
|
|
|
|
|
|
|
|
if (level >= ARRAY_SIZE(cycpwrThr1)) {
|
|
|
|
ath_print(common, ATH_DBG_ANI,
|
|
|
|
"level out of range (%u > %u)\n",
|
|
|
|
level,
|
|
|
|
(unsigned) ARRAY_SIZE(cycpwrThr1));
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
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:
|
|
|
|
ath_print(common, ATH_DBG_ANI,
|
|
|
|
"invalid cmd %u\n", cmd);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
ath_print(common, ATH_DBG_ANI, "ANI parameters:\n");
|
|
|
|
ath_print(common, ATH_DBG_ANI,
|
|
|
|
"noiseImmunityLevel=%d, spurImmunityLevel=%d, "
|
|
|
|
"ofdmWeakSigDetectOff=%d\n",
|
|
|
|
aniState->noiseImmunityLevel,
|
|
|
|
aniState->spurImmunityLevel,
|
|
|
|
!aniState->ofdmWeakSigDetectOff);
|
|
|
|
ath_print(common, ATH_DBG_ANI,
|
|
|
|
"cckWeakSigThreshold=%d, "
|
|
|
|
"firstepLevel=%d, listenTime=%d\n",
|
|
|
|
aniState->cckWeakSigThreshold,
|
|
|
|
aniState->firstepLevel,
|
|
|
|
aniState->listenTime);
|
|
|
|
ath_print(common, ATH_DBG_ANI,
|
|
|
|
"cycleCount=%d, ofdmPhyErrCount=%d, cckPhyErrCount=%d\n\n",
|
|
|
|
aniState->cycleCount,
|
|
|
|
aniState->ofdmPhyErrCount,
|
|
|
|
aniState->cckPhyErrCount);
|
|
|
|
|
|
|
|
return true;
|
2010-04-16 05:38:39 +08:00
|
|
|
}
|
|
|
|
|
2010-04-16 05:38:49 +08:00
|
|
|
static void ar9003_hw_nf_sanitize_2g(struct ath_hw *ah, s16 *nf)
|
|
|
|
{
|
|
|
|
struct ath_common *common = ath9k_hw_common(ah);
|
|
|
|
|
|
|
|
if (*nf > ah->nf_2g_max) {
|
|
|
|
ath_print(common, ATH_DBG_CALIBRATE,
|
|
|
|
"2 GHz NF (%d) > MAX (%d), "
|
|
|
|
"correcting to MAX",
|
|
|
|
*nf, ah->nf_2g_max);
|
|
|
|
*nf = ah->nf_2g_max;
|
|
|
|
} else if (*nf < ah->nf_2g_min) {
|
|
|
|
ath_print(common, ATH_DBG_CALIBRATE,
|
|
|
|
"2 GHz NF (%d) < MIN (%d), "
|
|
|
|
"correcting to MIN",
|
|
|
|
*nf, ah->nf_2g_min);
|
|
|
|
*nf = ah->nf_2g_min;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void ar9003_hw_nf_sanitize_5g(struct ath_hw *ah, s16 *nf)
|
|
|
|
{
|
|
|
|
struct ath_common *common = ath9k_hw_common(ah);
|
|
|
|
|
|
|
|
if (*nf > ah->nf_5g_max) {
|
|
|
|
ath_print(common, ATH_DBG_CALIBRATE,
|
|
|
|
"5 GHz NF (%d) > MAX (%d), "
|
|
|
|
"correcting to MAX",
|
|
|
|
*nf, ah->nf_5g_max);
|
|
|
|
*nf = ah->nf_5g_max;
|
|
|
|
} else if (*nf < ah->nf_5g_min) {
|
|
|
|
ath_print(common, ATH_DBG_CALIBRATE,
|
|
|
|
"5 GHz NF (%d) < MIN (%d), "
|
|
|
|
"correcting to MIN",
|
|
|
|
*nf, ah->nf_5g_min);
|
|
|
|
*nf = ah->nf_5g_min;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void ar9003_hw_nf_sanitize(struct ath_hw *ah, s16 *nf)
|
|
|
|
{
|
|
|
|
if (IS_CHAN_2GHZ(ah->curchan))
|
|
|
|
ar9003_hw_nf_sanitize_2g(ah, nf);
|
|
|
|
else
|
|
|
|
ar9003_hw_nf_sanitize_5g(ah, nf);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void ar9003_hw_do_getnf(struct ath_hw *ah,
|
|
|
|
int16_t nfarray[NUM_NF_READINGS])
|
|
|
|
{
|
|
|
|
struct ath_common *common = ath9k_hw_common(ah);
|
|
|
|
int16_t nf;
|
|
|
|
|
|
|
|
nf = MS(REG_READ(ah, AR_PHY_CCA_0), AR_PHY_MINCCA_PWR);
|
|
|
|
if (nf & 0x100)
|
|
|
|
nf = 0 - ((nf ^ 0x1ff) + 1);
|
|
|
|
ar9003_hw_nf_sanitize(ah, &nf);
|
|
|
|
ath_print(common, ATH_DBG_CALIBRATE,
|
|
|
|
"NF calibrated [ctl] [chain 0] is %d\n", nf);
|
|
|
|
nfarray[0] = nf;
|
|
|
|
|
|
|
|
nf = MS(REG_READ(ah, AR_PHY_CCA_1), AR_PHY_CH1_MINCCA_PWR);
|
|
|
|
if (nf & 0x100)
|
|
|
|
nf = 0 - ((nf ^ 0x1ff) + 1);
|
|
|
|
ar9003_hw_nf_sanitize(ah, &nf);
|
|
|
|
ath_print(common, ATH_DBG_CALIBRATE,
|
|
|
|
"NF calibrated [ctl] [chain 1] is %d\n", nf);
|
|
|
|
nfarray[1] = nf;
|
|
|
|
|
|
|
|
nf = MS(REG_READ(ah, AR_PHY_CCA_2), AR_PHY_CH2_MINCCA_PWR);
|
|
|
|
if (nf & 0x100)
|
|
|
|
nf = 0 - ((nf ^ 0x1ff) + 1);
|
|
|
|
ar9003_hw_nf_sanitize(ah, &nf);
|
|
|
|
ath_print(common, ATH_DBG_CALIBRATE,
|
|
|
|
"NF calibrated [ctl] [chain 2] is %d\n", nf);
|
|
|
|
nfarray[2] = nf;
|
|
|
|
|
|
|
|
nf = MS(REG_READ(ah, AR_PHY_EXT_CCA), AR_PHY_EXT_MINCCA_PWR);
|
|
|
|
if (nf & 0x100)
|
|
|
|
nf = 0 - ((nf ^ 0x1ff) + 1);
|
|
|
|
ar9003_hw_nf_sanitize(ah, &nf);
|
|
|
|
ath_print(common, ATH_DBG_CALIBRATE,
|
|
|
|
"NF calibrated [ext] [chain 0] is %d\n", nf);
|
|
|
|
nfarray[3] = nf;
|
|
|
|
|
|
|
|
nf = MS(REG_READ(ah, AR_PHY_EXT_CCA_1), AR_PHY_CH1_EXT_MINCCA_PWR);
|
|
|
|
if (nf & 0x100)
|
|
|
|
nf = 0 - ((nf ^ 0x1ff) + 1);
|
|
|
|
ar9003_hw_nf_sanitize(ah, &nf);
|
|
|
|
ath_print(common, ATH_DBG_CALIBRATE,
|
|
|
|
"NF calibrated [ext] [chain 1] is %d\n", nf);
|
|
|
|
nfarray[4] = nf;
|
|
|
|
|
|
|
|
nf = MS(REG_READ(ah, AR_PHY_EXT_CCA_2), AR_PHY_CH2_EXT_MINCCA_PWR);
|
|
|
|
if (nf & 0x100)
|
|
|
|
nf = 0 - ((nf ^ 0x1ff) + 1);
|
|
|
|
ar9003_hw_nf_sanitize(ah, &nf);
|
|
|
|
ath_print(common, ATH_DBG_CALIBRATE,
|
|
|
|
"NF calibrated [ext] [chain 2] is %d\n", nf);
|
|
|
|
nfarray[5] = nf;
|
|
|
|
}
|
|
|
|
|
|
|
|
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_5g_max = AR_PHY_CCA_MAX_GOOD_VAL_9300_5GHZ;
|
|
|
|
ah->nf_5g_min = AR_PHY_CCA_MIN_GOOD_VAL_9300_5GHZ;
|
|
|
|
}
|
|
|
|
|
2010-04-16 05:39:11 +08:00
|
|
|
/*
|
|
|
|
* Find out which of the RX chains are enabled
|
|
|
|
*/
|
|
|
|
static u32 ar9003_hw_get_rx_chainmask(struct ath_hw *ah)
|
|
|
|
{
|
|
|
|
u32 chain = REG_READ(ah, AR_PHY_RX_CHAINMASK);
|
|
|
|
/*
|
|
|
|
* The bits [2:0] indicate the rx chain mask and are to be
|
|
|
|
* interpreted as follows:
|
|
|
|
* 00x => Only chain 0 is enabled
|
|
|
|
* 01x => Chain 1 and 0 enabled
|
|
|
|
* 1xx => Chain 2,1 and 0 enabled
|
|
|
|
*/
|
|
|
|
return chain & 0x7;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void ar9003_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan)
|
|
|
|
{
|
|
|
|
struct ath9k_nfcal_hist *h;
|
|
|
|
unsigned i, j;
|
|
|
|
int32_t val;
|
|
|
|
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,
|
|
|
|
};
|
|
|
|
u8 chainmask, rx_chain_status;
|
|
|
|
struct ath_common *common = ath9k_hw_common(ah);
|
|
|
|
|
|
|
|
rx_chain_status = ar9003_hw_get_rx_chainmask(ah);
|
|
|
|
|
|
|
|
chainmask = 0x3F;
|
|
|
|
h = ah->nfCalHist;
|
|
|
|
|
|
|
|
for (i = 0; i < NUM_NF_READINGS; i++) {
|
|
|
|
if (chainmask & (1 << i)) {
|
|
|
|
val = REG_READ(ah, ar9300_cca_regs[i]);
|
|
|
|
val &= 0xFFFFFE00;
|
|
|
|
val |= (((u32) (h[i].privNF) << 1) & 0x1ff);
|
|
|
|
REG_WRITE(ah, ar9300_cca_regs[i], val);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Load software filtered NF value into baseband internal minCCApwr
|
|
|
|
* variable.
|
|
|
|
*/
|
|
|
|
REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL,
|
|
|
|
AR_PHY_AGC_CONTROL_ENABLE_NF);
|
|
|
|
REG_CLR_BIT(ah, AR_PHY_AGC_CONTROL,
|
|
|
|
AR_PHY_AGC_CONTROL_NO_UPDATE_NF);
|
|
|
|
REG_SET_BIT(ah, AR_PHY_AGC_CONTROL, AR_PHY_AGC_CONTROL_NF);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Wait for load to complete, should be fast, a few 10s of us.
|
|
|
|
* The max delay was changed from an original 250us to 10000us
|
|
|
|
* since 250us often results in NF load timeout and causes deaf
|
|
|
|
* condition during stress testing 12/12/2009
|
|
|
|
*/
|
|
|
|
for (j = 0; j < 1000; j++) {
|
|
|
|
if ((REG_READ(ah, AR_PHY_AGC_CONTROL) &
|
|
|
|
AR_PHY_AGC_CONTROL_NF) == 0)
|
|
|
|
break;
|
|
|
|
udelay(10);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* We timed out waiting for the noisefloor to load, probably due to an
|
|
|
|
* in-progress rx. Simply return here and allow the load plenty of time
|
|
|
|
* to complete before the next calibration interval. We need to avoid
|
|
|
|
* trying to load -50 (which happens below) while the previous load is
|
|
|
|
* still in progress as this can cause rx deafness. Instead by returning
|
|
|
|
* here, the baseband nf cal will just be capped by our present
|
|
|
|
* noisefloor until the next calibration timer.
|
|
|
|
*/
|
|
|
|
if (j == 1000) {
|
|
|
|
ath_print(common, ATH_DBG_ANY, "Timeout while waiting for nf "
|
|
|
|
"to load: AR_PHY_AGC_CONTROL=0x%x\n",
|
|
|
|
REG_READ(ah, AR_PHY_AGC_CONTROL));
|
2010-04-27 03:04:40 +08:00
|
|
|
return;
|
2010-04-16 05:39:11 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Restore maxCCAPower register parameter again so that we're not capped
|
|
|
|
* by the median we just loaded. This will be initial (and max) value
|
|
|
|
* of next noise floor calibration the baseband does.
|
|
|
|
*/
|
|
|
|
for (i = 0; i < NUM_NF_READINGS; i++) {
|
|
|
|
if (chainmask & (1 << i)) {
|
|
|
|
val = REG_READ(ah, ar9300_cca_regs[i]);
|
|
|
|
val &= 0xFFFFFE00;
|
|
|
|
val |= (((u32) (-50) << 1) & 0x1ff);
|
|
|
|
REG_WRITE(ah, ar9300_cca_regs[i], val);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2010-04-16 05:38:19 +08:00
|
|
|
void ar9003_hw_attach_phy_ops(struct ath_hw *ah)
|
|
|
|
{
|
|
|
|
struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
|
|
|
|
|
|
|
|
priv_ops->rf_set_freq = 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->enable_rfkill = ar9003_hw_enable_rfkill;
|
|
|
|
priv_ops->set_diversity = ar9003_hw_set_diversity;
|
2010-04-16 05:38:39 +08:00
|
|
|
priv_ops->ani_control = ar9003_hw_ani_control;
|
2010-04-16 05:38:49 +08:00
|
|
|
priv_ops->do_getnf = ar9003_hw_do_getnf;
|
2010-04-16 05:39:11 +08:00
|
|
|
priv_ops->loadnf = ar9003_hw_loadnf;
|
2010-04-16 05:38:19 +08:00
|
|
|
}
|