457 lines
13 KiB
C
457 lines
13 KiB
C
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/*
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* Copyright (c) 2008-2011 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 <linux/moduleparam.h>
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#include "hw.h"
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#include "ar5008_initvals.h"
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#include "ar9001_initvals.h"
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#include "ar9002_initvals.h"
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#include "ar9002_phy.h"
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/* General hardware code for the A5008/AR9001/AR9002 hadware families */
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static int ar9002_hw_init_mode_regs(struct ath_hw *ah)
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{
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if (AR_SREV_9271(ah)) {
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INIT_INI_ARRAY(&ah->iniModes, ar9271Modes_9271);
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INIT_INI_ARRAY(&ah->iniCommon, ar9271Common_9271);
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INIT_INI_ARRAY(&ah->iniModes_9271_ANI_reg, ar9271Modes_9271_ANI_reg);
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return 0;
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}
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INIT_INI_ARRAY(&ah->iniPcieSerdes,
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ar9280PciePhy_clkreq_always_on_L1_9280);
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if (AR_SREV_9287_11_OR_LATER(ah)) {
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INIT_INI_ARRAY(&ah->iniModes, ar9287Modes_9287_1_1);
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INIT_INI_ARRAY(&ah->iniCommon, ar9287Common_9287_1_1);
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} else if (AR_SREV_9285_12_OR_LATER(ah)) {
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INIT_INI_ARRAY(&ah->iniModes, ar9285Modes_9285_1_2);
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INIT_INI_ARRAY(&ah->iniCommon, ar9285Common_9285_1_2);
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} else if (AR_SREV_9280_20_OR_LATER(ah)) {
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INIT_INI_ARRAY(&ah->iniModes, ar9280Modes_9280_2);
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INIT_INI_ARRAY(&ah->iniCommon, ar9280Common_9280_2);
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INIT_INI_ARRAY(&ah->iniModesFastClock,
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ar9280Modes_fast_clock_9280_2);
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} else if (AR_SREV_9160_10_OR_LATER(ah)) {
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INIT_INI_ARRAY(&ah->iniModes, ar5416Modes_9160);
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INIT_INI_ARRAY(&ah->iniCommon, ar5416Common_9160);
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if (AR_SREV_9160_11(ah)) {
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INIT_INI_ARRAY(&ah->iniAddac,
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ar5416Addac_9160_1_1);
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} else {
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INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac_9160);
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}
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} else if (AR_SREV_9100_OR_LATER(ah)) {
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INIT_INI_ARRAY(&ah->iniModes, ar5416Modes_9100);
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INIT_INI_ARRAY(&ah->iniCommon, ar5416Common_9100);
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INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac_9100);
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} else {
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INIT_INI_ARRAY(&ah->iniModes, ar5416Modes);
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INIT_INI_ARRAY(&ah->iniCommon, ar5416Common);
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INIT_INI_ARRAY(&ah->iniAddac, ar5416Addac);
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}
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if (!AR_SREV_9280_20_OR_LATER(ah)) {
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/* Common for AR5416, AR913x, AR9160 */
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INIT_INI_ARRAY(&ah->iniBB_RfGain, ar5416BB_RfGain);
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/* Common for AR913x, AR9160 */
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if (!AR_SREV_5416(ah))
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INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6TPC_9100);
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else
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INIT_INI_ARRAY(&ah->iniBank6, ar5416Bank6TPC);
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}
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/* iniAddac needs to be modified for these chips */
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if (AR_SREV_9160(ah) || !AR_SREV_5416_22_OR_LATER(ah)) {
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struct ar5416IniArray *addac = &ah->iniAddac;
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u32 size = sizeof(u32) * addac->ia_rows * addac->ia_columns;
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u32 *data;
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data = devm_kzalloc(ah->dev, size, GFP_KERNEL);
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if (!data)
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return -ENOMEM;
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memcpy(data, addac->ia_array, size);
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addac->ia_array = data;
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if (!AR_SREV_5416_22_OR_LATER(ah)) {
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/* override CLKDRV value */
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INI_RA(addac, 31,1) = 0;
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}
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}
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if (AR_SREV_9287_11_OR_LATER(ah)) {
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INIT_INI_ARRAY(&ah->iniCckfirNormal,
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ar9287Common_normal_cck_fir_coeff_9287_1_1);
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INIT_INI_ARRAY(&ah->iniCckfirJapan2484,
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ar9287Common_japan_2484_cck_fir_coeff_9287_1_1);
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}
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return 0;
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}
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static void ar9280_20_hw_init_rxgain_ini(struct ath_hw *ah)
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{
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u32 rxgain_type;
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if (ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) >=
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AR5416_EEP_MINOR_VER_17) {
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rxgain_type = ah->eep_ops->get_eeprom(ah, EEP_RXGAIN_TYPE);
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if (rxgain_type == AR5416_EEP_RXGAIN_13DB_BACKOFF)
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INIT_INI_ARRAY(&ah->iniModesRxGain,
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ar9280Modes_backoff_13db_rxgain_9280_2);
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else if (rxgain_type == AR5416_EEP_RXGAIN_23DB_BACKOFF)
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INIT_INI_ARRAY(&ah->iniModesRxGain,
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ar9280Modes_backoff_23db_rxgain_9280_2);
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else
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INIT_INI_ARRAY(&ah->iniModesRxGain,
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ar9280Modes_original_rxgain_9280_2);
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} else {
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INIT_INI_ARRAY(&ah->iniModesRxGain,
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ar9280Modes_original_rxgain_9280_2);
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}
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}
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static void ar9280_20_hw_init_txgain_ini(struct ath_hw *ah, u32 txgain_type)
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{
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if (ah->eep_ops->get_eeprom(ah, EEP_MINOR_REV) >=
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AR5416_EEP_MINOR_VER_19) {
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if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER)
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INIT_INI_ARRAY(&ah->iniModesTxGain,
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ar9280Modes_high_power_tx_gain_9280_2);
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else
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INIT_INI_ARRAY(&ah->iniModesTxGain,
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ar9280Modes_original_tx_gain_9280_2);
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} else {
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INIT_INI_ARRAY(&ah->iniModesTxGain,
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ar9280Modes_original_tx_gain_9280_2);
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}
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}
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static void ar9271_hw_init_txgain_ini(struct ath_hw *ah, u32 txgain_type)
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{
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if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER)
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INIT_INI_ARRAY(&ah->iniModesTxGain,
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ar9271Modes_high_power_tx_gain_9271);
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else
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INIT_INI_ARRAY(&ah->iniModesTxGain,
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ar9271Modes_normal_power_tx_gain_9271);
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}
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static void ar9002_hw_init_mode_gain_regs(struct ath_hw *ah)
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{
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u32 txgain_type = ah->eep_ops->get_eeprom(ah, EEP_TXGAIN_TYPE);
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if (AR_SREV_9287_11_OR_LATER(ah))
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INIT_INI_ARRAY(&ah->iniModesRxGain,
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ar9287Modes_rx_gain_9287_1_1);
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else if (AR_SREV_9280_20(ah))
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ar9280_20_hw_init_rxgain_ini(ah);
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if (AR_SREV_9271(ah)) {
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ar9271_hw_init_txgain_ini(ah, txgain_type);
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} else if (AR_SREV_9287_11_OR_LATER(ah)) {
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INIT_INI_ARRAY(&ah->iniModesTxGain,
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ar9287Modes_tx_gain_9287_1_1);
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} else if (AR_SREV_9280_20(ah)) {
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ar9280_20_hw_init_txgain_ini(ah, txgain_type);
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} else if (AR_SREV_9285_12_OR_LATER(ah)) {
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/* txgain table */
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if (txgain_type == AR5416_EEP_TXGAIN_HIGH_POWER) {
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if (AR_SREV_9285E_20(ah)) {
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INIT_INI_ARRAY(&ah->iniModesTxGain,
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ar9285Modes_XE2_0_high_power);
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} else {
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INIT_INI_ARRAY(&ah->iniModesTxGain,
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ar9285Modes_high_power_tx_gain_9285_1_2);
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}
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} else {
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if (AR_SREV_9285E_20(ah)) {
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INIT_INI_ARRAY(&ah->iniModesTxGain,
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ar9285Modes_XE2_0_normal_power);
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} else {
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INIT_INI_ARRAY(&ah->iniModesTxGain,
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ar9285Modes_original_tx_gain_9285_1_2);
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}
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}
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}
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}
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/*
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* Helper for ASPM support.
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*
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* Disable PLL when in L0s as well as receiver clock when in L1.
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* This power saving option must be enabled through the SerDes.
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*
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* Programming the SerDes must go through the same 288 bit serial shift
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* register as the other analog registers. Hence the 9 writes.
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*/
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static void ar9002_hw_configpcipowersave(struct ath_hw *ah,
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bool power_off)
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{
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u8 i;
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u32 val;
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/* Nothing to do on restore for 11N */
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if (!power_off /* !restore */) {
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if (AR_SREV_9280_20_OR_LATER(ah)) {
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/*
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* AR9280 2.0 or later chips use SerDes values from the
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* initvals.h initialized depending on chipset during
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* __ath9k_hw_init()
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*/
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for (i = 0; i < ah->iniPcieSerdes.ia_rows; i++) {
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REG_WRITE(ah, INI_RA(&ah->iniPcieSerdes, i, 0),
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INI_RA(&ah->iniPcieSerdes, i, 1));
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}
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} else {
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ENABLE_REGWRITE_BUFFER(ah);
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REG_WRITE(ah, AR_PCIE_SERDES, 0x9248fc00);
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REG_WRITE(ah, AR_PCIE_SERDES, 0x24924924);
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/* RX shut off when elecidle is asserted */
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REG_WRITE(ah, AR_PCIE_SERDES, 0x28000039);
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REG_WRITE(ah, AR_PCIE_SERDES, 0x53160824);
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REG_WRITE(ah, AR_PCIE_SERDES, 0xe5980579);
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/*
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* Ignore ah->ah_config.pcie_clock_req setting for
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* pre-AR9280 11n
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*/
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REG_WRITE(ah, AR_PCIE_SERDES, 0x001defff);
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REG_WRITE(ah, AR_PCIE_SERDES, 0x1aaabe40);
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REG_WRITE(ah, AR_PCIE_SERDES, 0xbe105554);
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REG_WRITE(ah, AR_PCIE_SERDES, 0x000e3007);
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/* Load the new settings */
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REG_WRITE(ah, AR_PCIE_SERDES2, 0x00000000);
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REGWRITE_BUFFER_FLUSH(ah);
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}
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udelay(1000);
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}
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if (power_off) {
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/* clear bit 19 to disable L1 */
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REG_CLR_BIT(ah, AR_PCIE_PM_CTRL, AR_PCIE_PM_CTRL_ENA);
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val = REG_READ(ah, AR_WA);
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/*
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* Set PCIe workaround bits
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* In AR9280 and AR9285, bit 14 in WA register (disable L1)
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* should only be set when device enters D3 and be
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* cleared when device comes back to D0.
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*/
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if (ah->config.pcie_waen) {
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if (ah->config.pcie_waen & AR_WA_D3_L1_DISABLE)
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val |= AR_WA_D3_L1_DISABLE;
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} else {
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if (AR_SREV_9285(ah) || AR_SREV_9271(ah) || AR_SREV_9287(ah)) {
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if (AR9285_WA_DEFAULT & AR_WA_D3_L1_DISABLE)
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val |= AR_WA_D3_L1_DISABLE;
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} else if (AR_SREV_9280(ah)) {
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if (AR9280_WA_DEFAULT & AR_WA_D3_L1_DISABLE)
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val |= AR_WA_D3_L1_DISABLE;
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}
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}
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if (AR_SREV_9280(ah) || AR_SREV_9285(ah) || AR_SREV_9287(ah)) {
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/*
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* Disable bit 6 and 7 before entering D3 to
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* prevent system hang.
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*/
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val &= ~(AR_WA_BIT6 | AR_WA_BIT7);
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}
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if (AR_SREV_9280(ah))
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val |= AR_WA_BIT22;
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if (AR_SREV_9285E_20(ah))
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val |= AR_WA_BIT23;
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REG_WRITE(ah, AR_WA, val);
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} else {
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if (ah->config.pcie_waen) {
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val = ah->config.pcie_waen;
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val &= (~AR_WA_D3_L1_DISABLE);
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} else {
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if (AR_SREV_9285(ah) || AR_SREV_9271(ah) || AR_SREV_9287(ah)) {
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val = AR9285_WA_DEFAULT;
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val &= (~AR_WA_D3_L1_DISABLE);
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} else if (AR_SREV_9280(ah)) {
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/*
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* For AR9280 chips, bit 22 of 0x4004
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* needs to be set.
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*/
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val = AR9280_WA_DEFAULT;
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val &= (~AR_WA_D3_L1_DISABLE);
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} else {
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val = AR_WA_DEFAULT;
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}
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}
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/* WAR for ASPM system hang */
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if (AR_SREV_9285(ah) || AR_SREV_9287(ah))
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val |= (AR_WA_BIT6 | AR_WA_BIT7);
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if (AR_SREV_9285E_20(ah))
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val |= AR_WA_BIT23;
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REG_WRITE(ah, AR_WA, val);
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/* set bit 19 to allow forcing of pcie core into L1 state */
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REG_SET_BIT(ah, AR_PCIE_PM_CTRL, AR_PCIE_PM_CTRL_ENA);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static int ar9002_hw_get_radiorev(struct ath_hw *ah)
|
||
|
|
{
|
||
|
|
u32 val;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
ENABLE_REGWRITE_BUFFER(ah);
|
||
|
|
|
||
|
|
REG_WRITE(ah, AR_PHY(0x36), 0x00007058);
|
||
|
|
for (i = 0; i < 8; i++)
|
||
|
|
REG_WRITE(ah, AR_PHY(0x20), 0x00010000);
|
||
|
|
|
||
|
|
REGWRITE_BUFFER_FLUSH(ah);
|
||
|
|
|
||
|
|
val = (REG_READ(ah, AR_PHY(256)) >> 24) & 0xff;
|
||
|
|
val = ((val & 0xf0) >> 4) | ((val & 0x0f) << 4);
|
||
|
|
|
||
|
|
return ath9k_hw_reverse_bits(val, 8);
|
||
|
|
}
|
||
|
|
|
||
|
|
int ar9002_hw_rf_claim(struct ath_hw *ah)
|
||
|
|
{
|
||
|
|
u32 val;
|
||
|
|
|
||
|
|
REG_WRITE(ah, AR_PHY(0), 0x00000007);
|
||
|
|
|
||
|
|
val = ar9002_hw_get_radiorev(ah);
|
||
|
|
switch (val & AR_RADIO_SREV_MAJOR) {
|
||
|
|
case 0:
|
||
|
|
val = AR_RAD5133_SREV_MAJOR;
|
||
|
|
break;
|
||
|
|
case AR_RAD5133_SREV_MAJOR:
|
||
|
|
case AR_RAD5122_SREV_MAJOR:
|
||
|
|
case AR_RAD2133_SREV_MAJOR:
|
||
|
|
case AR_RAD2122_SREV_MAJOR:
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
ath_err(ath9k_hw_common(ah),
|
||
|
|
"Radio Chip Rev 0x%02X not supported\n",
|
||
|
|
val & AR_RADIO_SREV_MAJOR);
|
||
|
|
return -EOPNOTSUPP;
|
||
|
|
}
|
||
|
|
|
||
|
|
ah->hw_version.analog5GhzRev = val;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void ar9002_hw_enable_async_fifo(struct ath_hw *ah)
|
||
|
|
{
|
||
|
|
if (AR_SREV_9287_13_OR_LATER(ah)) {
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void ar9002_hw_init_hang_checks(struct ath_hw *ah)
|
||
|
|
{
|
||
|
|
if (AR_SREV_9100(ah) || AR_SREV_9160(ah)) {
|
||
|
|
ah->config.hw_hang_checks |= HW_BB_RIFS_HANG;
|
||
|
|
ah->config.hw_hang_checks |= HW_BB_DFS_HANG;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (AR_SREV_9280(ah))
|
||
|
|
ah->config.hw_hang_checks |= HW_BB_RX_CLEAR_STUCK_HANG;
|
||
|
|
|
||
|
|
if (AR_SREV_5416(ah) || AR_SREV_9100(ah) || AR_SREV_9160(ah))
|
||
|
|
ah->config.hw_hang_checks |= HW_MAC_HANG;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Sets up the AR5008/AR9001/AR9002 hardware familiy callbacks */
|
||
|
|
int ar9002_hw_attach_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);
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
ret = ar9002_hw_init_mode_regs(ah);
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
priv_ops->init_mode_gain_regs = ar9002_hw_init_mode_gain_regs;
|
||
|
|
priv_ops->init_hang_checks = ar9002_hw_init_hang_checks;
|
||
|
|
|
||
|
|
ops->config_pci_powersave = ar9002_hw_configpcipowersave;
|
||
|
|
|
||
|
|
ret = ar5008_hw_attach_phy_ops(ah);
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
if (AR_SREV_9280_20_OR_LATER(ah))
|
||
|
|
ar9002_hw_attach_phy_ops(ah);
|
||
|
|
|
||
|
|
ar9002_hw_attach_calib_ops(ah);
|
||
|
|
ar9002_hw_attach_mac_ops(ah);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void ar9002_hw_load_ani_reg(struct ath_hw *ah, struct ath9k_channel *chan)
|
||
|
|
{
|
||
|
|
u32 modesIndex;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
if (IS_CHAN_5GHZ(chan))
|
||
|
|
modesIndex = IS_CHAN_HT40(chan) ? 2 : 1;
|
||
|
|
else
|
||
|
|
modesIndex = IS_CHAN_HT40(chan) ? 3 : 4;
|
||
|
|
|
||
|
|
ENABLE_REGWRITE_BUFFER(ah);
|
||
|
|
|
||
|
|
for (i = 0; i < ah->iniModes_9271_ANI_reg.ia_rows; i++) {
|
||
|
|
u32 reg = INI_RA(&ah->iniModes_9271_ANI_reg, i, 0);
|
||
|
|
u32 val = INI_RA(&ah->iniModes_9271_ANI_reg, i, modesIndex);
|
||
|
|
u32 val_orig;
|
||
|
|
|
||
|
|
if (reg == AR_PHY_CCK_DETECT) {
|
||
|
|
val_orig = REG_READ(ah, reg);
|
||
|
|
val &= AR_PHY_CCK_DETECT_WEAK_SIG_THR_CCK;
|
||
|
|
val_orig &= ~AR_PHY_CCK_DETECT_WEAK_SIG_THR_CCK;
|
||
|
|
|
||
|
|
REG_WRITE(ah, reg, val|val_orig);
|
||
|
|
} else
|
||
|
|
REG_WRITE(ah, reg, val);
|
||
|
|
}
|
||
|
|
|
||
|
|
REGWRITE_BUFFER_FLUSH(ah);
|
||
|
|
}
|