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

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/*
* Copyright (c) 2008-2010 Atheros Communications Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "hw.h"
#include "hw-ops.h"
#include "../regd.h"
#include "ar9002_phy.h"
/* All code below is for non single-chip solutions */
/**
* ar5008_hw_phy_modify_rx_buffer() - perform analog swizzling of parameters
* @rfbuf:
* @reg32:
* @numBits:
* @firstBit:
* @column:
*
* Performs analog "swizzling" of parameters into their location.
* Used on external AR2133/AR5133 radios.
*/
static void ar5008_hw_phy_modify_rx_buffer(u32 *rfBuf, u32 reg32,
u32 numBits, u32 firstBit,
u32 column)
{
u32 tmp32, mask, arrayEntry, lastBit;
int32_t bitPosition, bitsLeft;
tmp32 = ath9k_hw_reverse_bits(reg32, numBits);
arrayEntry = (firstBit - 1) / 8;
bitPosition = (firstBit - 1) % 8;
bitsLeft = numBits;
while (bitsLeft > 0) {
lastBit = (bitPosition + bitsLeft > 8) ?
8 : bitPosition + bitsLeft;
mask = (((1 << lastBit) - 1) ^ ((1 << bitPosition) - 1)) <<
(column * 8);
rfBuf[arrayEntry] &= ~mask;
rfBuf[arrayEntry] |= ((tmp32 << bitPosition) <<
(column * 8)) & mask;
bitsLeft -= 8 - bitPosition;
tmp32 = tmp32 >> (8 - bitPosition);
bitPosition = 0;
arrayEntry++;
}
}
/*
* Fix on 2.4 GHz band for orientation sensitivity issue by increasing
* rf_pwd_icsyndiv.
*
* Theoretical Rules:
* if 2 GHz band
* if forceBiasAuto
* if synth_freq < 2412
* bias = 0
* else if 2412 <= synth_freq <= 2422
* bias = 1
* else // synth_freq > 2422
* bias = 2
* else if forceBias > 0
* bias = forceBias & 7
* else
* no change, use value from ini file
* else
* no change, invalid band
*
* 1st Mod:
* 2422 also uses value of 2
* <approved>
*
* 2nd Mod:
* Less than 2412 uses value of 0, 2412 and above uses value of 2
*/
static void ar5008_hw_force_bias(struct ath_hw *ah, u16 synth_freq)
{
struct ath_common *common = ath9k_hw_common(ah);
u32 tmp_reg;
int reg_writes = 0;
u32 new_bias = 0;
if (!AR_SREV_5416(ah) || synth_freq >= 3000)
return;
BUG_ON(AR_SREV_9280_10_OR_LATER(ah));
if (synth_freq < 2412)
new_bias = 0;
else if (synth_freq < 2422)
new_bias = 1;
else
new_bias = 2;
/* pre-reverse this field */
tmp_reg = ath9k_hw_reverse_bits(new_bias, 3);
ath_print(common, ATH_DBG_CONFIG,
"Force rf_pwd_icsyndiv to %1d on %4d\n",
new_bias, synth_freq);
/* swizzle rf_pwd_icsyndiv */
ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data, tmp_reg, 3, 181, 3);
/* write Bank 6 with new params */
REG_WRITE_RF_ARRAY(&ah->iniBank6, ah->analogBank6Data, reg_writes);
}
/**
* ar5008_hw_set_channel - tune to a channel on the external AR2133/AR5133 radios
* @ah: atheros hardware stucture
* @chan:
*
* For the external AR2133/AR5133 radios, takes the MHz channel value and set
* the channel value. Assumes writes enabled to analog bus and bank6 register
* cache in ah->analogBank6Data.
*/
static int ar5008_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
{
struct ath_common *common = ath9k_hw_common(ah);
u32 channelSel = 0;
u32 bModeSynth = 0;
u32 aModeRefSel = 0;
u32 reg32 = 0;
u16 freq;
struct chan_centers centers;
ath9k_hw_get_channel_centers(ah, chan, &centers);
freq = centers.synth_center;
if (freq < 4800) {
u32 txctl;
if (((freq - 2192) % 5) == 0) {
channelSel = ((freq - 672) * 2 - 3040) / 10;
bModeSynth = 0;
} else if (((freq - 2224) % 5) == 0) {
channelSel = ((freq - 704) * 2 - 3040) / 10;
bModeSynth = 1;
} else {
ath_print(common, ATH_DBG_FATAL,
"Invalid channel %u MHz\n", freq);
return -EINVAL;
}
channelSel = (channelSel << 2) & 0xff;
channelSel = ath9k_hw_reverse_bits(channelSel, 8);
txctl = REG_READ(ah, AR_PHY_CCK_TX_CTRL);
if (freq == 2484) {
REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
} else {
REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
txctl & ~AR_PHY_CCK_TX_CTRL_JAPAN);
}
} else if ((freq % 20) == 0 && freq >= 5120) {
channelSel =
ath9k_hw_reverse_bits(((freq - 4800) / 20 << 2), 8);
aModeRefSel = ath9k_hw_reverse_bits(1, 2);
} else if ((freq % 10) == 0) {
channelSel =
ath9k_hw_reverse_bits(((freq - 4800) / 10 << 1), 8);
if (AR_SREV_9100(ah) || AR_SREV_9160_10_OR_LATER(ah))
aModeRefSel = ath9k_hw_reverse_bits(2, 2);
else
aModeRefSel = ath9k_hw_reverse_bits(1, 2);
} else if ((freq % 5) == 0) {
channelSel = ath9k_hw_reverse_bits((freq - 4800) / 5, 8);
aModeRefSel = ath9k_hw_reverse_bits(1, 2);
} else {
ath_print(common, ATH_DBG_FATAL,
"Invalid channel %u MHz\n", freq);
return -EINVAL;
}
ar5008_hw_force_bias(ah, freq);
reg32 =
(channelSel << 8) | (aModeRefSel << 2) | (bModeSynth << 1) |
(1 << 5) | 0x1;
REG_WRITE(ah, AR_PHY(0x37), reg32);
ah->curchan = chan;
ah->curchan_rad_index = -1;
return 0;
}
/**
* ar5008_hw_spur_mitigate - convert baseband spur frequency for external radios
* @ah: atheros hardware structure
* @chan:
*
* For non single-chip solutions. Converts to baseband spur frequency given the
* input channel frequency and compute register settings below.
*/
static void ar5008_hw_spur_mitigate(struct ath_hw *ah,
struct ath9k_channel *chan)
{
int bb_spur = AR_NO_SPUR;
int bin, cur_bin;
int spur_freq_sd;
int spur_delta_phase;
int denominator;
int upper, lower, cur_vit_mask;
int tmp, new;
int i;
int pilot_mask_reg[4] = { AR_PHY_TIMING7, AR_PHY_TIMING8,
AR_PHY_PILOT_MASK_01_30, AR_PHY_PILOT_MASK_31_60
};
int chan_mask_reg[4] = { AR_PHY_TIMING9, AR_PHY_TIMING10,
AR_PHY_CHANNEL_MASK_01_30, AR_PHY_CHANNEL_MASK_31_60
};
int inc[4] = { 0, 100, 0, 0 };
int8_t mask_m[123];
int8_t mask_p[123];
int8_t mask_amt;
int tmp_mask;
int cur_bb_spur;
bool is2GHz = IS_CHAN_2GHZ(chan);
memset(&mask_m, 0, sizeof(int8_t) * 123);
memset(&mask_p, 0, sizeof(int8_t) * 123);
for (i = 0; i < AR_EEPROM_MODAL_SPURS; i++) {
cur_bb_spur = ah->eep_ops->get_spur_channel(ah, i, is2GHz);
if (AR_NO_SPUR == cur_bb_spur)
break;
cur_bb_spur = cur_bb_spur - (chan->channel * 10);
if ((cur_bb_spur > -95) && (cur_bb_spur < 95)) {
bb_spur = cur_bb_spur;
break;
}
}
if (AR_NO_SPUR == bb_spur)
return;
bin = bb_spur * 32;
tmp = REG_READ(ah, AR_PHY_TIMING_CTRL4(0));
new = tmp | (AR_PHY_TIMING_CTRL4_ENABLE_SPUR_RSSI |
AR_PHY_TIMING_CTRL4_ENABLE_SPUR_FILTER |
AR_PHY_TIMING_CTRL4_ENABLE_CHAN_MASK |
AR_PHY_TIMING_CTRL4_ENABLE_PILOT_MASK);
REG_WRITE(ah, AR_PHY_TIMING_CTRL4(0), new);
new = (AR_PHY_SPUR_REG_MASK_RATE_CNTL |
AR_PHY_SPUR_REG_ENABLE_MASK_PPM |
AR_PHY_SPUR_REG_MASK_RATE_SELECT |
AR_PHY_SPUR_REG_ENABLE_VIT_SPUR_RSSI |
SM(SPUR_RSSI_THRESH, AR_PHY_SPUR_REG_SPUR_RSSI_THRESH));
REG_WRITE(ah, AR_PHY_SPUR_REG, new);
spur_delta_phase = ((bb_spur * 524288) / 100) &
AR_PHY_TIMING11_SPUR_DELTA_PHASE;
denominator = IS_CHAN_2GHZ(chan) ? 440 : 400;
spur_freq_sd = ((bb_spur * 2048) / denominator) & 0x3ff;
new = (AR_PHY_TIMING11_USE_SPUR_IN_AGC |
SM(spur_freq_sd, AR_PHY_TIMING11_SPUR_FREQ_SD) |
SM(spur_delta_phase, AR_PHY_TIMING11_SPUR_DELTA_PHASE));
REG_WRITE(ah, AR_PHY_TIMING11, new);
cur_bin = -6000;
upper = bin + 100;
lower = bin - 100;
for (i = 0; i < 4; i++) {
int pilot_mask = 0;
int chan_mask = 0;
int bp = 0;
for (bp = 0; bp < 30; bp++) {
if ((cur_bin > lower) && (cur_bin < upper)) {
pilot_mask = pilot_mask | 0x1 << bp;
chan_mask = chan_mask | 0x1 << bp;
}
cur_bin += 100;
}
cur_bin += inc[i];
REG_WRITE(ah, pilot_mask_reg[i], pilot_mask);
REG_WRITE(ah, chan_mask_reg[i], chan_mask);
}
cur_vit_mask = 6100;
upper = bin + 120;
lower = bin - 120;
for (i = 0; i < 123; i++) {
if ((cur_vit_mask > lower) && (cur_vit_mask < upper)) {
/* workaround for gcc bug #37014 */
volatile int tmp_v = abs(cur_vit_mask - bin);
if (tmp_v < 75)
mask_amt = 1;
else
mask_amt = 0;
if (cur_vit_mask < 0)
mask_m[abs(cur_vit_mask / 100)] = mask_amt;
else
mask_p[cur_vit_mask / 100] = mask_amt;
}
cur_vit_mask -= 100;
}
tmp_mask = (mask_m[46] << 30) | (mask_m[47] << 28)
| (mask_m[48] << 26) | (mask_m[49] << 24)
| (mask_m[50] << 22) | (mask_m[51] << 20)
| (mask_m[52] << 18) | (mask_m[53] << 16)
| (mask_m[54] << 14) | (mask_m[55] << 12)
| (mask_m[56] << 10) | (mask_m[57] << 8)
| (mask_m[58] << 6) | (mask_m[59] << 4)
| (mask_m[60] << 2) | (mask_m[61] << 0);
REG_WRITE(ah, AR_PHY_BIN_MASK_1, tmp_mask);
REG_WRITE(ah, AR_PHY_VIT_MASK2_M_46_61, tmp_mask);
tmp_mask = (mask_m[31] << 28)
| (mask_m[32] << 26) | (mask_m[33] << 24)
| (mask_m[34] << 22) | (mask_m[35] << 20)
| (mask_m[36] << 18) | (mask_m[37] << 16)
| (mask_m[48] << 14) | (mask_m[39] << 12)
| (mask_m[40] << 10) | (mask_m[41] << 8)
| (mask_m[42] << 6) | (mask_m[43] << 4)
| (mask_m[44] << 2) | (mask_m[45] << 0);
REG_WRITE(ah, AR_PHY_BIN_MASK_2, tmp_mask);
REG_WRITE(ah, AR_PHY_MASK2_M_31_45, tmp_mask);
tmp_mask = (mask_m[16] << 30) | (mask_m[16] << 28)
| (mask_m[18] << 26) | (mask_m[18] << 24)
| (mask_m[20] << 22) | (mask_m[20] << 20)
| (mask_m[22] << 18) | (mask_m[22] << 16)
| (mask_m[24] << 14) | (mask_m[24] << 12)
| (mask_m[25] << 10) | (mask_m[26] << 8)
| (mask_m[27] << 6) | (mask_m[28] << 4)
| (mask_m[29] << 2) | (mask_m[30] << 0);
REG_WRITE(ah, AR_PHY_BIN_MASK_3, tmp_mask);
REG_WRITE(ah, AR_PHY_MASK2_M_16_30, tmp_mask);
tmp_mask = (mask_m[0] << 30) | (mask_m[1] << 28)
| (mask_m[2] << 26) | (mask_m[3] << 24)
| (mask_m[4] << 22) | (mask_m[5] << 20)
| (mask_m[6] << 18) | (mask_m[7] << 16)
| (mask_m[8] << 14) | (mask_m[9] << 12)
| (mask_m[10] << 10) | (mask_m[11] << 8)
| (mask_m[12] << 6) | (mask_m[13] << 4)
| (mask_m[14] << 2) | (mask_m[15] << 0);
REG_WRITE(ah, AR_PHY_MASK_CTL, tmp_mask);
REG_WRITE(ah, AR_PHY_MASK2_M_00_15, tmp_mask);
tmp_mask = (mask_p[15] << 28)
| (mask_p[14] << 26) | (mask_p[13] << 24)
| (mask_p[12] << 22) | (mask_p[11] << 20)
| (mask_p[10] << 18) | (mask_p[9] << 16)
| (mask_p[8] << 14) | (mask_p[7] << 12)
| (mask_p[6] << 10) | (mask_p[5] << 8)
| (mask_p[4] << 6) | (mask_p[3] << 4)
| (mask_p[2] << 2) | (mask_p[1] << 0);
REG_WRITE(ah, AR_PHY_BIN_MASK2_1, tmp_mask);
REG_WRITE(ah, AR_PHY_MASK2_P_15_01, tmp_mask);
tmp_mask = (mask_p[30] << 28)
| (mask_p[29] << 26) | (mask_p[28] << 24)
| (mask_p[27] << 22) | (mask_p[26] << 20)
| (mask_p[25] << 18) | (mask_p[24] << 16)
| (mask_p[23] << 14) | (mask_p[22] << 12)
| (mask_p[21] << 10) | (mask_p[20] << 8)
| (mask_p[19] << 6) | (mask_p[18] << 4)
| (mask_p[17] << 2) | (mask_p[16] << 0);
REG_WRITE(ah, AR_PHY_BIN_MASK2_2, tmp_mask);
REG_WRITE(ah, AR_PHY_MASK2_P_30_16, tmp_mask);
tmp_mask = (mask_p[45] << 28)
| (mask_p[44] << 26) | (mask_p[43] << 24)
| (mask_p[42] << 22) | (mask_p[41] << 20)
| (mask_p[40] << 18) | (mask_p[39] << 16)
| (mask_p[38] << 14) | (mask_p[37] << 12)
| (mask_p[36] << 10) | (mask_p[35] << 8)
| (mask_p[34] << 6) | (mask_p[33] << 4)
| (mask_p[32] << 2) | (mask_p[31] << 0);
REG_WRITE(ah, AR_PHY_BIN_MASK2_3, tmp_mask);
REG_WRITE(ah, AR_PHY_MASK2_P_45_31, tmp_mask);
tmp_mask = (mask_p[61] << 30) | (mask_p[60] << 28)
| (mask_p[59] << 26) | (mask_p[58] << 24)
| (mask_p[57] << 22) | (mask_p[56] << 20)
| (mask_p[55] << 18) | (mask_p[54] << 16)
| (mask_p[53] << 14) | (mask_p[52] << 12)
| (mask_p[51] << 10) | (mask_p[50] << 8)
| (mask_p[49] << 6) | (mask_p[48] << 4)
| (mask_p[47] << 2) | (mask_p[46] << 0);
REG_WRITE(ah, AR_PHY_BIN_MASK2_4, tmp_mask);
REG_WRITE(ah, AR_PHY_MASK2_P_61_45, tmp_mask);
}
/**
* ar5008_hw_rf_alloc_ext_banks - allocates banks for external radio programming
* @ah: atheros hardware structure
*
* Only required for older devices with external AR2133/AR5133 radios.
*/
static int ar5008_hw_rf_alloc_ext_banks(struct ath_hw *ah)
{
#define ATH_ALLOC_BANK(bank, size) do { \
bank = kzalloc((sizeof(u32) * size), GFP_KERNEL); \
if (!bank) { \
ath_print(common, ATH_DBG_FATAL, \
"Cannot allocate RF banks\n"); \
return -ENOMEM; \
} \
} while (0);
struct ath_common *common = ath9k_hw_common(ah);
BUG_ON(AR_SREV_9280_10_OR_LATER(ah));
ATH_ALLOC_BANK(ah->analogBank0Data, ah->iniBank0.ia_rows);
ATH_ALLOC_BANK(ah->analogBank1Data, ah->iniBank1.ia_rows);
ATH_ALLOC_BANK(ah->analogBank2Data, ah->iniBank2.ia_rows);
ATH_ALLOC_BANK(ah->analogBank3Data, ah->iniBank3.ia_rows);
ATH_ALLOC_BANK(ah->analogBank6Data, ah->iniBank6.ia_rows);
ATH_ALLOC_BANK(ah->analogBank6TPCData, ah->iniBank6TPC.ia_rows);
ATH_ALLOC_BANK(ah->analogBank7Data, ah->iniBank7.ia_rows);
ATH_ALLOC_BANK(ah->addac5416_21,
ah->iniAddac.ia_rows * ah->iniAddac.ia_columns);
ATH_ALLOC_BANK(ah->bank6Temp, ah->iniBank6.ia_rows);
return 0;
#undef ATH_ALLOC_BANK
}
/**
* ar5008_hw_rf_free_ext_banks - Free memory for analog bank scratch buffers
* @ah: atheros hardware struture
* For the external AR2133/AR5133 radios banks.
*/
static void ar5008_hw_rf_free_ext_banks(struct ath_hw *ah)
{
#define ATH_FREE_BANK(bank) do { \
kfree(bank); \
bank = NULL; \
} while (0);
BUG_ON(AR_SREV_9280_10_OR_LATER(ah));
ATH_FREE_BANK(ah->analogBank0Data);
ATH_FREE_BANK(ah->analogBank1Data);
ATH_FREE_BANK(ah->analogBank2Data);
ATH_FREE_BANK(ah->analogBank3Data);
ATH_FREE_BANK(ah->analogBank6Data);
ATH_FREE_BANK(ah->analogBank6TPCData);
ATH_FREE_BANK(ah->analogBank7Data);
ATH_FREE_BANK(ah->addac5416_21);
ATH_FREE_BANK(ah->bank6Temp);
#undef ATH_FREE_BANK
}
/* *
* ar5008_hw_set_rf_regs - programs rf registers based on EEPROM
* @ah: atheros hardware structure
* @chan:
* @modesIndex:
*
* Used for the external AR2133/AR5133 radios.
*
* Reads the EEPROM header info from the device structure and programs
* all rf registers. This routine requires access to the analog
* rf device. This is not required for single-chip devices.
*/
static bool ar5008_hw_set_rf_regs(struct ath_hw *ah,
struct ath9k_channel *chan,
u16 modesIndex)
{
u32 eepMinorRev;
u32 ob5GHz = 0, db5GHz = 0;
u32 ob2GHz = 0, db2GHz = 0;
int regWrites = 0;
/*
* Software does not need to program bank data
* for single chip devices, that is AR9280 or anything
* after that.
*/
if (AR_SREV_9280_10_OR_LATER(ah))
return true;
/* Setup rf parameters */
eepMinorRev = ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV);
/* Setup Bank 0 Write */
RF_BANK_SETUP(ah->analogBank0Data, &ah->iniBank0, 1);
/* Setup Bank 1 Write */
RF_BANK_SETUP(ah->analogBank1Data, &ah->iniBank1, 1);
/* Setup Bank 2 Write */
RF_BANK_SETUP(ah->analogBank2Data, &ah->iniBank2, 1);
/* Setup Bank 6 Write */
RF_BANK_SETUP(ah->analogBank3Data, &ah->iniBank3,
modesIndex);
{
int i;
for (i = 0; i < ah->iniBank6TPC.ia_rows; i++) {
ah->analogBank6Data[i] =
INI_RA(&ah->iniBank6TPC, i, modesIndex);
}
}
/* Only the 5 or 2 GHz OB/DB need to be set for a mode */
if (eepMinorRev >= 2) {
if (IS_CHAN_2GHZ(chan)) {
ob2GHz = ah->eep_ops->get_eeprom(ah, EEP_OB_2);
db2GHz = ah->eep_ops->get_eeprom(ah, EEP_DB_2);
ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data,
ob2GHz, 3, 197, 0);
ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data,
db2GHz, 3, 194, 0);
} else {
ob5GHz = ah->eep_ops->get_eeprom(ah, EEP_OB_5);
db5GHz = ah->eep_ops->get_eeprom(ah, EEP_DB_5);
ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data,
ob5GHz, 3, 203, 0);
ar5008_hw_phy_modify_rx_buffer(ah->analogBank6Data,
db5GHz, 3, 200, 0);
}
}
/* Setup Bank 7 Setup */
RF_BANK_SETUP(ah->analogBank7Data, &ah->iniBank7, 1);
/* Write Analog registers */
REG_WRITE_RF_ARRAY(&ah->iniBank0, ah->analogBank0Data,
regWrites);
REG_WRITE_RF_ARRAY(&ah->iniBank1, ah->analogBank1Data,
regWrites);
REG_WRITE_RF_ARRAY(&ah->iniBank2, ah->analogBank2Data,
regWrites);
REG_WRITE_RF_ARRAY(&ah->iniBank3, ah->analogBank3Data,
regWrites);
REG_WRITE_RF_ARRAY(&ah->iniBank6TPC, ah->analogBank6Data,
regWrites);
REG_WRITE_RF_ARRAY(&ah->iniBank7, ah->analogBank7Data,
regWrites);
return true;
}
static void ar5008_hw_init_bb(struct ath_hw *ah,
struct ath9k_channel *chan)
{
u32 synthDelay;
synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
if (IS_CHAN_B(chan))
synthDelay = (4 * synthDelay) / 22;
else
synthDelay /= 10;
REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
udelay(synthDelay + BASE_ACTIVATE_DELAY);
}
static void ar5008_hw_init_chain_masks(struct ath_hw *ah)
{
int rx_chainmask, tx_chainmask;
rx_chainmask = ah->rxchainmask;
tx_chainmask = ah->txchainmask;
ENABLE_REGWRITE_BUFFER(ah);
switch (rx_chainmask) {
case 0x5:
DISABLE_REGWRITE_BUFFER(ah);
REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
AR_PHY_SWAP_ALT_CHAIN);
ENABLE_REGWRITE_BUFFER(ah);
case 0x3:
if (ah->hw_version.macVersion == AR_SREV_REVISION_5416_10) {
REG_WRITE(ah, AR_PHY_RX_CHAINMASK, 0x7);
REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, 0x7);
break;
}
case 0x1:
case 0x2:
case 0x7:
REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
break;
default:
break;
}
REG_WRITE(ah, AR_SELFGEN_MASK, tx_chainmask);
REGWRITE_BUFFER_FLUSH(ah);
DISABLE_REGWRITE_BUFFER(ah);
if (tx_chainmask == 0x5) {
REG_SET_BIT(ah, AR_PHY_ANALOG_SWAP,
AR_PHY_SWAP_ALT_CHAIN);
}
if (AR_SREV_9100(ah))
REG_WRITE(ah, AR_PHY_ANALOG_SWAP,
REG_READ(ah, AR_PHY_ANALOG_SWAP) | 0x00000001);
}
static void ar5008_hw_override_ini(struct ath_hw *ah,
struct ath9k_channel *chan)
{
u32 val;
/*
* Set the RX_ABORT and RX_DIS and clear if off only after
* RXE is set for MAC. This prevents frames with corrupted
* descriptor status.
*/
REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
if (AR_SREV_9280_10_OR_LATER(ah)) {
val = REG_READ(ah, AR_PCU_MISC_MODE2);
if (!AR_SREV_9271(ah))
val &= ~AR_PCU_MISC_MODE2_HWWAR1;
if (AR_SREV_9287_10_OR_LATER(ah))
val = val & (~AR_PCU_MISC_MODE2_HWWAR2);
REG_WRITE(ah, AR_PCU_MISC_MODE2, val);
}
if (!AR_SREV_5416_20_OR_LATER(ah) ||
AR_SREV_9280_10_OR_LATER(ah))
return;
/*
* Disable BB clock gating
* Necessary to avoid issues on AR5416 2.0
*/
REG_WRITE(ah, 0x9800 + (651 << 2), 0x11);
/*
* Disable RIFS search on some chips to avoid baseband
* hang issues.
*/
if (AR_SREV_9100(ah) || AR_SREV_9160(ah)) {
val = REG_READ(ah, AR_PHY_HEAVY_CLIP_FACTOR_RIFS);
val &= ~AR_PHY_RIFS_INIT_DELAY;
REG_WRITE(ah, AR_PHY_HEAVY_CLIP_FACTOR_RIFS, val);
}
}
static void ar5008_hw_set_channel_regs(struct ath_hw *ah,
struct ath9k_channel *chan)
{
u32 phymode;
u32 enableDacFifo = 0;
if (AR_SREV_9285_10_OR_LATER(ah))
enableDacFifo = (REG_READ(ah, AR_PHY_TURBO) &
AR_PHY_FC_ENABLE_DAC_FIFO);
phymode = AR_PHY_FC_HT_EN | AR_PHY_FC_SHORT_GI_40
| AR_PHY_FC_SINGLE_HT_LTF1 | AR_PHY_FC_WALSH | enableDacFifo;
if (IS_CHAN_HT40(chan)) {
phymode |= AR_PHY_FC_DYN2040_EN;
if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
(chan->chanmode == CHANNEL_G_HT40PLUS))
phymode |= AR_PHY_FC_DYN2040_PRI_CH;
}
REG_WRITE(ah, AR_PHY_TURBO, phymode);
ath9k_hw_set11nmac2040(ah);
ENABLE_REGWRITE_BUFFER(ah);
REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
REG_WRITE(ah, AR_CST, 0xF << AR_CST_TIMEOUT_LIMIT_S);
REGWRITE_BUFFER_FLUSH(ah);
DISABLE_REGWRITE_BUFFER(ah);
}
static int ar5008_hw_process_ini(struct ath_hw *ah,
struct ath9k_channel *chan)
{
struct ath_regulatory *regulatory = ath9k_hw_regulatory(ah);
int i, regWrites = 0;
struct ieee80211_channel *channel = chan->chan;
u32 modesIndex, freqIndex;
switch (chan->chanmode) {
case CHANNEL_A:
case CHANNEL_A_HT20:
modesIndex = 1;
freqIndex = 1;
break;
case CHANNEL_A_HT40PLUS:
case CHANNEL_A_HT40MINUS:
modesIndex = 2;
freqIndex = 1;
break;
case CHANNEL_G:
case CHANNEL_G_HT20:
case CHANNEL_B:
modesIndex = 4;
freqIndex = 2;
break;
case CHANNEL_G_HT40PLUS:
case CHANNEL_G_HT40MINUS:
modesIndex = 3;
freqIndex = 2;
break;
default:
return -EINVAL;
}
if (AR_SREV_9287_12_OR_LATER(ah)) {
/* Enable ASYNC FIFO */
REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
AR_MAC_PCU_ASYNC_FIFO_REG3_DATAPATH_SEL);
REG_SET_BIT(ah, AR_PHY_MODE, AR_PHY_MODE_ASYNCFIFO);
REG_CLR_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
AR_MAC_PCU_ASYNC_FIFO_REG3_SOFT_RESET);
}
/*
* Set correct baseband to analog shift setting to
* access analog chips.
*/
REG_WRITE(ah, AR_PHY(0), 0x00000007);
/* Write ADDAC shifts */
REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_EXTERNAL_RADIO);
ah->eep_ops->set_addac(ah, chan);
if (AR_SREV_5416_22_OR_LATER(ah)) {
REG_WRITE_ARRAY(&ah->iniAddac, 1, regWrites);
} else {
struct ar5416IniArray temp;
u32 addacSize =
sizeof(u32) * ah->iniAddac.ia_rows *
ah->iniAddac.ia_columns;
/* For AR5416 2.0/2.1 */
memcpy(ah->addac5416_21,
ah->iniAddac.ia_array, addacSize);
/* override CLKDRV value at [row, column] = [31, 1] */
(ah->addac5416_21)[31 * ah->iniAddac.ia_columns + 1] = 0;
temp.ia_array = ah->addac5416_21;
temp.ia_columns = ah->iniAddac.ia_columns;
temp.ia_rows = ah->iniAddac.ia_rows;
REG_WRITE_ARRAY(&temp, 1, regWrites);
}
REG_WRITE(ah, AR_PHY_ADC_SERIAL_CTL, AR_PHY_SEL_INTERNAL_ADDAC);
ENABLE_REGWRITE_BUFFER(ah);
for (i = 0; i < ah->iniModes.ia_rows; i++) {
u32 reg = INI_RA(&ah->iniModes, i, 0);
u32 val = INI_RA(&ah->iniModes, i, modesIndex);
if (reg == AR_AN_TOP2 && ah->need_an_top2_fixup)
val &= ~AR_AN_TOP2_PWDCLKIND;
REG_WRITE(ah, reg, val);
if (reg >= 0x7800 && reg < 0x78a0
&& ah->config.analog_shiftreg) {
udelay(100);
}
DO_DELAY(regWrites);
}
REGWRITE_BUFFER_FLUSH(ah);
DISABLE_REGWRITE_BUFFER(ah);
if (AR_SREV_9280(ah) || AR_SREV_9287_10_OR_LATER(ah))
REG_WRITE_ARRAY(&ah->iniModesRxGain, modesIndex, regWrites);
if (AR_SREV_9280(ah) || AR_SREV_9285_12_OR_LATER(ah) ||
AR_SREV_9287_10_OR_LATER(ah))
REG_WRITE_ARRAY(&ah->iniModesTxGain, modesIndex, regWrites);
if (AR_SREV_9271_10(ah))
REG_WRITE_ARRAY(&ah->iniModes_9271_1_0_only,
modesIndex, regWrites);
ENABLE_REGWRITE_BUFFER(ah);
/* Write common array parameters */
for (i = 0; i < ah->iniCommon.ia_rows; i++) {
u32 reg = INI_RA(&ah->iniCommon, i, 0);
u32 val = INI_RA(&ah->iniCommon, i, 1);
REG_WRITE(ah, reg, val);
if (reg >= 0x7800 && reg < 0x78a0
&& ah->config.analog_shiftreg) {
udelay(100);
}
DO_DELAY(regWrites);
}
REGWRITE_BUFFER_FLUSH(ah);
DISABLE_REGWRITE_BUFFER(ah);
if (AR_SREV_9271(ah)) {
if (ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE) == 1)
REG_WRITE_ARRAY(&ah->iniModes_high_power_tx_gain_9271,
modesIndex, regWrites);
else
REG_WRITE_ARRAY(&ah->iniModes_normal_power_tx_gain_9271,
modesIndex, regWrites);
}
REG_WRITE_ARRAY(&ah->iniBB_RfGain, freqIndex, regWrites);
if (IS_CHAN_A_FAST_CLOCK(ah, chan)) {
REG_WRITE_ARRAY(&ah->iniModesAdditional, modesIndex,
regWrites);
}
ar5008_hw_override_ini(ah, chan);
ar5008_hw_set_channel_regs(ah, chan);
ar5008_hw_init_chain_masks(ah);
ath9k_olc_init(ah);
/* Set TX power */
ah->eep_ops->set_txpower(ah, chan,
ath9k_regd_get_ctl(regulatory, chan),
channel->max_antenna_gain * 2,
channel->max_power * 2,
min((u32) MAX_RATE_POWER,
(u32) regulatory->power_limit));
/* Write analog registers */
if (!ath9k_hw_set_rf_regs(ah, chan, freqIndex)) {
ath_print(ath9k_hw_common(ah), ATH_DBG_FATAL,
"ar5416SetRfRegs failed\n");
return -EIO;
}
return 0;
}
static void ar5008_hw_set_rfmode(struct ath_hw *ah, struct ath9k_channel *chan)
{
u32 rfMode = 0;
if (chan == NULL)
return;
rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
if (!AR_SREV_9280_10_OR_LATER(ah))
rfMode |= (IS_CHAN_5GHZ(chan)) ?
AR_PHY_MODE_RF5GHZ : AR_PHY_MODE_RF2GHZ;
if (IS_CHAN_A_FAST_CLOCK(ah, chan))
rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);
REG_WRITE(ah, AR_PHY_MODE, rfMode);
}
static void ar5008_hw_mark_phy_inactive(struct ath_hw *ah)
{
REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
}
static void ar5008_hw_set_delta_slope(struct ath_hw *ah,
struct ath9k_channel *chan)
{
u32 coef_scaled, ds_coef_exp, ds_coef_man;
u32 clockMhzScaled = 0x64000000;
struct chan_centers centers;
if (IS_CHAN_HALF_RATE(chan))
clockMhzScaled = clockMhzScaled >> 1;
else if (IS_CHAN_QUARTER_RATE(chan))
clockMhzScaled = clockMhzScaled >> 2;
ath9k_hw_get_channel_centers(ah, chan, &centers);
coef_scaled = clockMhzScaled / centers.synth_center;
ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
&ds_coef_exp);
REG_RMW_FIELD(ah, AR_PHY_TIMING3,
AR_PHY_TIMING3_DSC_MAN, ds_coef_man);
REG_RMW_FIELD(ah, AR_PHY_TIMING3,
AR_PHY_TIMING3_DSC_EXP, ds_coef_exp);
coef_scaled = (9 * coef_scaled) / 10;
ath9k_hw_get_delta_slope_vals(ah, coef_scaled, &ds_coef_man,
&ds_coef_exp);
REG_RMW_FIELD(ah, AR_PHY_HALFGI,
AR_PHY_HALFGI_DSC_MAN, ds_coef_man);
REG_RMW_FIELD(ah, AR_PHY_HALFGI,
AR_PHY_HALFGI_DSC_EXP, ds_coef_exp);
}
static bool ar5008_hw_rfbus_req(struct ath_hw *ah)
{
REG_WRITE(ah, AR_PHY_RFBUS_REQ, AR_PHY_RFBUS_REQ_EN);
return ath9k_hw_wait(ah, AR_PHY_RFBUS_GRANT, AR_PHY_RFBUS_GRANT_EN,
AR_PHY_RFBUS_GRANT_EN, AH_WAIT_TIMEOUT);
}
static void ar5008_hw_rfbus_done(struct ath_hw *ah)
{
u32 synthDelay = REG_READ(ah, AR_PHY_RX_DELAY) & AR_PHY_RX_DELAY_DELAY;
if (IS_CHAN_B(ah->curchan))
synthDelay = (4 * synthDelay) / 22;
else
synthDelay /= 10;
udelay(synthDelay + BASE_ACTIVATE_DELAY);
REG_WRITE(ah, AR_PHY_RFBUS_REQ, 0);
}
static void ar5008_hw_enable_rfkill(struct ath_hw *ah)
{
REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL,
AR_GPIO_INPUT_EN_VAL_RFSILENT_BB);
REG_CLR_BIT(ah, AR_GPIO_INPUT_MUX2,
AR_GPIO_INPUT_MUX2_RFSILENT);
ath9k_hw_cfg_gpio_input(ah, ah->rfkill_gpio);
REG_SET_BIT(ah, AR_PHY_TEST, RFSILENT_BB);
}
static void ar5008_restore_chainmask(struct ath_hw *ah)
{
int rx_chainmask = ah->rxchainmask;
if ((rx_chainmask == 0x5) || (rx_chainmask == 0x3)) {
REG_WRITE(ah, AR_PHY_RX_CHAINMASK, rx_chainmask);
REG_WRITE(ah, AR_PHY_CAL_CHAINMASK, rx_chainmask);
}
}
static void ar5008_set_diversity(struct ath_hw *ah, bool value)
{
u32 v = REG_READ(ah, AR_PHY_CCK_DETECT);
if (value)
v |= AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
else
v &= ~AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV;
REG_WRITE(ah, AR_PHY_CCK_DETECT, v);
}
static u32 ar9100_hw_compute_pll_control(struct ath_hw *ah,
struct ath9k_channel *chan)
{
if (chan && IS_CHAN_5GHZ(chan))
return 0x1450;
return 0x1458;
}
static u32 ar9160_hw_compute_pll_control(struct ath_hw *ah,
struct ath9k_channel *chan)
{
u32 pll;
pll = SM(0x5, AR_RTC_9160_PLL_REFDIV);
if (chan && IS_CHAN_HALF_RATE(chan))
pll |= SM(0x1, AR_RTC_9160_PLL_CLKSEL);
else if (chan && IS_CHAN_QUARTER_RATE(chan))
pll |= SM(0x2, AR_RTC_9160_PLL_CLKSEL);
if (chan && IS_CHAN_5GHZ(chan))
pll |= SM(0x50, AR_RTC_9160_PLL_DIV);
else
pll |= SM(0x58, AR_RTC_9160_PLL_DIV);
return pll;
}
static u32 ar5008_hw_compute_pll_control(struct ath_hw *ah,
struct ath9k_channel *chan)
{
u32 pll;
pll = AR_RTC_PLL_REFDIV_5 | AR_RTC_PLL_DIV2;
if (chan && IS_CHAN_HALF_RATE(chan))
pll |= SM(0x1, AR_RTC_PLL_CLKSEL);
else if (chan && IS_CHAN_QUARTER_RATE(chan))
pll |= SM(0x2, AR_RTC_PLL_CLKSEL);
if (chan && IS_CHAN_5GHZ(chan))
pll |= SM(0xa, AR_RTC_PLL_DIV);
else
pll |= SM(0xb, AR_RTC_PLL_DIV);
return pll;
}
static bool ar5008_hw_ani_control(struct ath_hw *ah,
enum ath9k_ani_cmd cmd, int param)
{
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_CTL1,
AR_PHY_AGC_CTL1_COARSE_LOW,
ah->coarse_low[level]);
REG_RMW_FIELD(ah, AR_PHY_AGC_CTL1,
AR_PHY_AGC_CTL1_COARSE_HIGH,
ah->coarse_high[level]);
REG_RMW_FIELD(ah, AR_PHY_FIND_SIG,
AR_PHY_FIND_SIG_FIRPWR,
ah->firpwr[level]);
if (level > aniState->noiseImmunityLevel)
ah->stats.ast_ani_niup++;
else if (level < aniState->noiseImmunityLevel)
ah->stats.ast_ani_nidown++;
aniState->noiseImmunityLevel = level;
break;
}
case ATH9K_ANI_OFDM_WEAK_SIGNAL_DETECTION:{
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;
}
static void ar5008_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), AR_PHY_MINCCA_PWR);
if (nf & 0x100)
nf = 0 - ((nf ^ 0x1ff) + 1);
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_CH1_CCA), AR_PHY_CH1_MINCCA_PWR);
if (nf & 0x100)
nf = 0 - ((nf ^ 0x1ff) + 1);
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_CH2_CCA), AR_PHY_CH2_MINCCA_PWR);
if (nf & 0x100)
nf = 0 - ((nf ^ 0x1ff) + 1);
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);
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_CH1_EXT_CCA), AR_PHY_CH1_EXT_MINCCA_PWR);
if (nf & 0x100)
nf = 0 - ((nf ^ 0x1ff) + 1);
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_CH2_EXT_CCA), AR_PHY_CH2_EXT_MINCCA_PWR);
if (nf & 0x100)
nf = 0 - ((nf ^ 0x1ff) + 1);
ath_print(common, ATH_DBG_CALIBRATE,
"NF calibrated [ext] [chain 2] is %d\n", nf);
nfarray[5] = nf;
}
static void ar5008_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan)
{
struct ath9k_nfcal_hist *h;
int i, j;
int32_t val;
const u32 ar5416_cca_regs[6] = {
AR_PHY_CCA,
AR_PHY_CH1_CCA,
AR_PHY_CH2_CCA,
AR_PHY_EXT_CCA,
AR_PHY_CH1_EXT_CCA,
AR_PHY_CH2_EXT_CCA
};
u8 chainmask, rx_chain_status;
rx_chain_status = REG_READ(ah, AR_PHY_RX_CHAINMASK);
if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
chainmask = 0x9;
else if (AR_SREV_9280(ah) || AR_SREV_9287(ah)) {
if ((rx_chain_status & 0x2) || (rx_chain_status & 0x4))
chainmask = 0x1B;
else
chainmask = 0x09;
} else {
if (rx_chain_status & 0x4)
chainmask = 0x3F;
else if (rx_chain_status & 0x2)
chainmask = 0x1B;
else
chainmask = 0x09;
}
h = ah->nfCalHist;
for (i = 0; i < NUM_NF_READINGS; i++) {
if (chainmask & (1 << i)) {
val = REG_READ(ah, ar5416_cca_regs[i]);
val &= 0xFFFFFE00;
val |= (((u32) (h[i].privNF) << 1) & 0x1ff);
REG_WRITE(ah, ar5416_cca_regs[i], val);
}
}
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);
for (j = 0; j < 5; j++) {
if ((REG_READ(ah, AR_PHY_AGC_CONTROL) &
AR_PHY_AGC_CONTROL_NF) == 0)
break;
udelay(50);
}
ENABLE_REGWRITE_BUFFER(ah);
for (i = 0; i < NUM_NF_READINGS; i++) {
if (chainmask & (1 << i)) {
val = REG_READ(ah, ar5416_cca_regs[i]);
val &= 0xFFFFFE00;
val |= (((u32) (-50) << 1) & 0x1ff);
REG_WRITE(ah, ar5416_cca_regs[i], val);
}
}
REGWRITE_BUFFER_FLUSH(ah);
DISABLE_REGWRITE_BUFFER(ah);
}
void ar5008_hw_attach_phy_ops(struct ath_hw *ah)
{
struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
priv_ops->rf_set_freq = ar5008_hw_set_channel;
priv_ops->spur_mitigate_freq = ar5008_hw_spur_mitigate;
priv_ops->rf_alloc_ext_banks = ar5008_hw_rf_alloc_ext_banks;
priv_ops->rf_free_ext_banks = ar5008_hw_rf_free_ext_banks;
priv_ops->set_rf_regs = ar5008_hw_set_rf_regs;
priv_ops->set_channel_regs = ar5008_hw_set_channel_regs;
priv_ops->init_bb = ar5008_hw_init_bb;
priv_ops->process_ini = ar5008_hw_process_ini;
priv_ops->set_rfmode = ar5008_hw_set_rfmode;
priv_ops->mark_phy_inactive = ar5008_hw_mark_phy_inactive;
priv_ops->set_delta_slope = ar5008_hw_set_delta_slope;
priv_ops->rfbus_req = ar5008_hw_rfbus_req;
priv_ops->rfbus_done = ar5008_hw_rfbus_done;
priv_ops->enable_rfkill = ar5008_hw_enable_rfkill;
priv_ops->restore_chainmask = ar5008_restore_chainmask;
priv_ops->set_diversity = ar5008_set_diversity;
priv_ops->ani_control = ar5008_hw_ani_control;
priv_ops->do_getnf = ar5008_hw_do_getnf;
priv_ops->loadnf = ar5008_hw_loadnf;
if (AR_SREV_9100(ah))
priv_ops->compute_pll_control = ar9100_hw_compute_pll_control;
else if (AR_SREV_9160_10_OR_LATER(ah))
priv_ops->compute_pll_control = ar9160_hw_compute_pll_control;
else
priv_ops->compute_pll_control = ar5008_hw_compute_pll_control;
}
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