linux/drivers/net/wireless/ath/ath9k/ar9003_hw.c - nest-guard/1.0/linux - Git at Google

 /*
  * 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 "ar9003_mac.h"
 #include "ar9003_2p2_initvals.h"

 /* General hardware code for the AR9003 hadware family */

 static bool ar9003_hw_macversion_supported(u32 macversion)
 {
 	switch (macversion) {
 	case AR_SREV_VERSION_9300:
 		return true;
 	default:
 		break;
 	}
 	return false;
 }

 /*
  * The AR9003 family uses a new INI format (pre, core, post
  * arrays per subsystem). This provides support for the
  * AR9003 2.2 chipsets.
  */
 static void ar9003_hw_init_mode_regs(struct ath_hw *ah)
 {
 	/* mac */
 	INIT_INI_ARRAY(&ah->iniMac[ATH_INI_PRE], NULL, 0, 0);
 	INIT_INI_ARRAY(&ah->iniMac[ATH_INI_CORE],
 		       ar9300_2p2_mac_core,
 		       ARRAY_SIZE(ar9300_2p2_mac_core), 2);
 	INIT_INI_ARRAY(&ah->iniMac[ATH_INI_POST],
 		       ar9300_2p2_mac_postamble,
 		       ARRAY_SIZE(ar9300_2p2_mac_postamble), 5);

 	/* bb */
 	INIT_INI_ARRAY(&ah->iniBB[ATH_INI_PRE], NULL, 0, 0);
 	INIT_INI_ARRAY(&ah->iniBB[ATH_INI_CORE],
 		       ar9300_2p2_baseband_core,
 		       ARRAY_SIZE(ar9300_2p2_baseband_core), 2);
 	INIT_INI_ARRAY(&ah->iniBB[ATH_INI_POST],
 		       ar9300_2p2_baseband_postamble,
 		       ARRAY_SIZE(ar9300_2p2_baseband_postamble), 5);

 	/* radio */
 	INIT_INI_ARRAY(&ah->iniRadio[ATH_INI_PRE], NULL, 0, 0);
 	INIT_INI_ARRAY(&ah->iniRadio[ATH_INI_CORE],
 		       ar9300_2p2_radio_core,
 		       ARRAY_SIZE(ar9300_2p2_radio_core), 2);
 	INIT_INI_ARRAY(&ah->iniRadio[ATH_INI_POST],
 		       ar9300_2p2_radio_postamble,
 		       ARRAY_SIZE(ar9300_2p2_radio_postamble), 5);

 	/* soc */
 	INIT_INI_ARRAY(&ah->iniSOC[ATH_INI_PRE],
 		       ar9300_2p2_soc_preamble,
 		       ARRAY_SIZE(ar9300_2p2_soc_preamble), 2);
 	INIT_INI_ARRAY(&ah->iniSOC[ATH_INI_CORE], NULL, 0, 0);
 	INIT_INI_ARRAY(&ah->iniSOC[ATH_INI_POST],
 		       ar9300_2p2_soc_postamble,
 		       ARRAY_SIZE(ar9300_2p2_soc_postamble), 5);

 	/* rx/tx gain */
 	INIT_INI_ARRAY(&ah->iniModesRxGain,
 		       ar9300Common_rx_gain_table_2p2,
 		       ARRAY_SIZE(ar9300Common_rx_gain_table_2p2), 2);
 	INIT_INI_ARRAY(&ah->iniModesTxGain,
 		       ar9300Modes_lowest_ob_db_tx_gain_table_2p2,
 		       ARRAY_SIZE(ar9300Modes_lowest_ob_db_tx_gain_table_2p2),
 		       5);

 	/* Load PCIE SERDES settings from INI */

 	/* Awake Setting */

 	INIT_INI_ARRAY(&ah->iniPcieSerdes,
 		       ar9300PciePhy_pll_on_clkreq_disable_L1_2p2,
 		       ARRAY_SIZE(ar9300PciePhy_pll_on_clkreq_disable_L1_2p2),
 		       2);

 	/* Sleep Setting */

 	INIT_INI_ARRAY(&ah->iniPcieSerdesLowPower,
 		       ar9300PciePhy_clkreq_enable_L1_2p2,
 		       ARRAY_SIZE(ar9300PciePhy_clkreq_enable_L1_2p2),
 		       2);

 	/* Fast clock modal settings */
 	INIT_INI_ARRAY(&ah->iniModesAdditional,
 		       ar9300Modes_fast_clock_2p2,
 		       ARRAY_SIZE(ar9300Modes_fast_clock_2p2),
 		       3);
 }

 static void ar9003_tx_gain_table_apply(struct ath_hw *ah)
 {
 	switch (ar9003_hw_get_tx_gain_idx(ah)) {
 	case 0:
 	default:
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			       ar9300Modes_lowest_ob_db_tx_gain_table_2p2,
 			       ARRAY_SIZE(ar9300Modes_lowest_ob_db_tx_gain_table_2p2),
 			       5);
 		break;
 	case 1:
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			       ar9300Modes_high_ob_db_tx_gain_table_2p2,
 			       ARRAY_SIZE(ar9300Modes_high_ob_db_tx_gain_table_2p2),
 			       5);
 		break;
 	case 2:
 		INIT_INI_ARRAY(&ah->iniModesTxGain,
 			       ar9300Modes_low_ob_db_tx_gain_table_2p2,
 			       ARRAY_SIZE(ar9300Modes_low_ob_db_tx_gain_table_2p2),
 			       5);
 		break;
 	}
 }

 static void ar9003_rx_gain_table_apply(struct ath_hw *ah)
 {
 	switch (ar9003_hw_get_rx_gain_idx(ah)) {
 	case 0:
 	default:
 		INIT_INI_ARRAY(&ah->iniModesRxGain,
 			       ar9300Common_rx_gain_table_2p2,
 			       ARRAY_SIZE(ar9300Common_rx_gain_table_2p2),
 			       2);
 		break;
 	case 1:
 		INIT_INI_ARRAY(&ah->iniModesRxGain,
 			       ar9300Common_wo_xlna_rx_gain_table_2p2,
 			       ARRAY_SIZE(ar9300Common_wo_xlna_rx_gain_table_2p2),
 			       2);
 		break;
 	}
 }

 /* set gain table pointers according to values read from the eeprom */
 static void ar9003_hw_init_mode_gain_regs(struct ath_hw *ah)
 {
 	ar9003_tx_gain_table_apply(ah);
 	ar9003_rx_gain_table_apply(ah);
 }

 /*
  * Helper for ASPM support.
  *
  * Disable PLL when in L0s as well as receiver clock when in L1.
  * This power saving option must be enabled through the SerDes.
  *
  * Programming the SerDes must go through the same 288 bit serial shift
  * register as the other analog registers.  Hence the 9 writes.
  */
 static void ar9003_hw_configpcipowersave(struct ath_hw *ah,
 					 int restore,
 					 int power_off)
 {
 	if (ah->is_pciexpress != true)
 		return;

 	/* Do not touch SerDes registers */
 	if (ah->config.pcie_powersave_enable == 2)
 		return;

 	/* Nothing to do on restore for 11N */
 	if (!restore) {
 		/* set bit 19 to allow forcing of pcie core into L1 state */
 		REG_SET_BIT(ah, AR_PCIE_PM_CTRL, AR_PCIE_PM_CTRL_ENA);

 		/* Several PCIe massages to ensure proper behaviour */
 		if (ah->config.pcie_waen)
 			REG_WRITE(ah, AR_WA, ah->config.pcie_waen);
 		else
 			REG_WRITE(ah, AR_WA, ah->WARegVal);
 	}

 	/*
 	 * Configire PCIE after Ini init. SERDES values now come from ini file
 	 * This enables PCIe low power mode.
 	 */
 	if (ah->config.pcieSerDesWrite) {
 		unsigned int i;
 		struct ar5416IniArray *array;

 		array = power_off ? &ah->iniPcieSerdes :
 				    &ah->iniPcieSerdesLowPower;

 		for (i = 0; i < array->ia_rows; i++) {
 			REG_WRITE(ah,
 				  INI_RA(array, i, 0),
 				  INI_RA(array, i, 1));
 		}
 	}
 }

 /* Sets up the AR9003 hardware familiy callbacks */
 void ar9003_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);

 	priv_ops->init_mode_regs = ar9003_hw_init_mode_regs;
 	priv_ops->init_mode_gain_regs = ar9003_hw_init_mode_gain_regs;
 	priv_ops->macversion_supported = ar9003_hw_macversion_supported;

 	ops->config_pci_powersave = ar9003_hw_configpcipowersave;

 	ar9003_hw_attach_phy_ops(ah);
 	ar9003_hw_attach_calib_ops(ah);
 	ar9003_hw_attach_mac_ops(ah);
 }
	/*
	* 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 "ar9003_mac.h"
	#include "ar9003_2p2_initvals.h"

	/* General hardware code for the AR9003 hadware family */

	static bool ar9003_hw_macversion_supported(u32 macversion)
	{
	switch (macversion) {
	case AR_SREV_VERSION_9300:
	return true;
	default:
	break;
	}
	return false;
	}

	/*
	* The AR9003 family uses a new INI format (pre, core, post
	* arrays per subsystem). This provides support for the
	* AR9003 2.2 chipsets.
	*/
	static void ar9003_hw_init_mode_regs(struct ath_hw *ah)
	{
	/* mac */
	INIT_INI_ARRAY(&ah->iniMac[ATH_INI_PRE], NULL, 0, 0);
	INIT_INI_ARRAY(&ah->iniMac[ATH_INI_CORE],
	ar9300_2p2_mac_core,
	ARRAY_SIZE(ar9300_2p2_mac_core), 2);
	INIT_INI_ARRAY(&ah->iniMac[ATH_INI_POST],
	ar9300_2p2_mac_postamble,
	ARRAY_SIZE(ar9300_2p2_mac_postamble), 5);

	/* bb */
	INIT_INI_ARRAY(&ah->iniBB[ATH_INI_PRE], NULL, 0, 0);
	INIT_INI_ARRAY(&ah->iniBB[ATH_INI_CORE],
	ar9300_2p2_baseband_core,
	ARRAY_SIZE(ar9300_2p2_baseband_core), 2);
	INIT_INI_ARRAY(&ah->iniBB[ATH_INI_POST],
	ar9300_2p2_baseband_postamble,
	ARRAY_SIZE(ar9300_2p2_baseband_postamble), 5);

	/* radio */
	INIT_INI_ARRAY(&ah->iniRadio[ATH_INI_PRE], NULL, 0, 0);
	INIT_INI_ARRAY(&ah->iniRadio[ATH_INI_CORE],
	ar9300_2p2_radio_core,
	ARRAY_SIZE(ar9300_2p2_radio_core), 2);
	INIT_INI_ARRAY(&ah->iniRadio[ATH_INI_POST],
	ar9300_2p2_radio_postamble,
	ARRAY_SIZE(ar9300_2p2_radio_postamble), 5);

	/* soc */
	INIT_INI_ARRAY(&ah->iniSOC[ATH_INI_PRE],
	ar9300_2p2_soc_preamble,
	ARRAY_SIZE(ar9300_2p2_soc_preamble), 2);
	INIT_INI_ARRAY(&ah->iniSOC[ATH_INI_CORE], NULL, 0, 0);
	INIT_INI_ARRAY(&ah->iniSOC[ATH_INI_POST],
	ar9300_2p2_soc_postamble,
	ARRAY_SIZE(ar9300_2p2_soc_postamble), 5);

	/* rx/tx gain */
	INIT_INI_ARRAY(&ah->iniModesRxGain,
	ar9300Common_rx_gain_table_2p2,
	ARRAY_SIZE(ar9300Common_rx_gain_table_2p2), 2);
	INIT_INI_ARRAY(&ah->iniModesTxGain,
	ar9300Modes_lowest_ob_db_tx_gain_table_2p2,
	ARRAY_SIZE(ar9300Modes_lowest_ob_db_tx_gain_table_2p2),
	5);

	/* Load PCIE SERDES settings from INI */

	/* Awake Setting */

	INIT_INI_ARRAY(&ah->iniPcieSerdes,
	ar9300PciePhy_pll_on_clkreq_disable_L1_2p2,
	ARRAY_SIZE(ar9300PciePhy_pll_on_clkreq_disable_L1_2p2),
	2);

	/* Sleep Setting */

	INIT_INI_ARRAY(&ah->iniPcieSerdesLowPower,
	ar9300PciePhy_clkreq_enable_L1_2p2,
	ARRAY_SIZE(ar9300PciePhy_clkreq_enable_L1_2p2),
	2);

	/* Fast clock modal settings */
	INIT_INI_ARRAY(&ah->iniModesAdditional,
	ar9300Modes_fast_clock_2p2,
	ARRAY_SIZE(ar9300Modes_fast_clock_2p2),
	3);
	}

	static void ar9003_tx_gain_table_apply(struct ath_hw *ah)
	{
	switch (ar9003_hw_get_tx_gain_idx(ah)) {
	case 0:
	default:
	INIT_INI_ARRAY(&ah->iniModesTxGain,
	ar9300Modes_lowest_ob_db_tx_gain_table_2p2,
	ARRAY_SIZE(ar9300Modes_lowest_ob_db_tx_gain_table_2p2),
	5);
	break;
	case 1:
	INIT_INI_ARRAY(&ah->iniModesTxGain,
	ar9300Modes_high_ob_db_tx_gain_table_2p2,
	ARRAY_SIZE(ar9300Modes_high_ob_db_tx_gain_table_2p2),
	5);
	break;
	case 2:
	INIT_INI_ARRAY(&ah->iniModesTxGain,
	ar9300Modes_low_ob_db_tx_gain_table_2p2,
	ARRAY_SIZE(ar9300Modes_low_ob_db_tx_gain_table_2p2),
	5);
	break;
	}
	}

	static void ar9003_rx_gain_table_apply(struct ath_hw *ah)
	{
	switch (ar9003_hw_get_rx_gain_idx(ah)) {
	case 0:
	default:
	INIT_INI_ARRAY(&ah->iniModesRxGain,
	ar9300Common_rx_gain_table_2p2,
	ARRAY_SIZE(ar9300Common_rx_gain_table_2p2),
	2);
	break;
	case 1:
	INIT_INI_ARRAY(&ah->iniModesRxGain,
	ar9300Common_wo_xlna_rx_gain_table_2p2,
	ARRAY_SIZE(ar9300Common_wo_xlna_rx_gain_table_2p2),
	2);
	break;
	}
	}

	/* set gain table pointers according to values read from the eeprom */
	static void ar9003_hw_init_mode_gain_regs(struct ath_hw *ah)
	{
	ar9003_tx_gain_table_apply(ah);
	ar9003_rx_gain_table_apply(ah);
	}

	/*
	* Helper for ASPM support.
	*
	* Disable PLL when in L0s as well as receiver clock when in L1.
	* This power saving option must be enabled through the SerDes.
	*
	* Programming the SerDes must go through the same 288 bit serial shift
	* register as the other analog registers. Hence the 9 writes.
	*/
	static void ar9003_hw_configpcipowersave(struct ath_hw *ah,
	int restore,
	int power_off)
	{
	if (ah->is_pciexpress != true)
	return;

	/* Do not touch SerDes registers */
	if (ah->config.pcie_powersave_enable == 2)
	return;

	/* Nothing to do on restore for 11N */
	if (!restore) {
	/* set bit 19 to allow forcing of pcie core into L1 state */
	REG_SET_BIT(ah, AR_PCIE_PM_CTRL, AR_PCIE_PM_CTRL_ENA);

	/* Several PCIe massages to ensure proper behaviour */
	if (ah->config.pcie_waen)
	REG_WRITE(ah, AR_WA, ah->config.pcie_waen);
	else
	REG_WRITE(ah, AR_WA, ah->WARegVal);
	}

	/*
	* Configire PCIE after Ini init. SERDES values now come from ini file
	* This enables PCIe low power mode.
	*/
	if (ah->config.pcieSerDesWrite) {
	unsigned int i;
	struct ar5416IniArray *array;

	array = power_off ? &ah->iniPcieSerdes :
	&ah->iniPcieSerdesLowPower;

	for (i = 0; i < array->ia_rows; i++) {
	REG_WRITE(ah,
	INI_RA(array, i, 0),
	INI_RA(array, i, 1));
	}
	}
	}

	/* Sets up the AR9003 hardware familiy callbacks */
	void ar9003_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);

	priv_ops->init_mode_regs = ar9003_hw_init_mode_regs;
	priv_ops->init_mode_gain_regs = ar9003_hw_init_mode_gain_regs;
	priv_ops->macversion_supported = ar9003_hw_macversion_supported;

	ops->config_pci_powersave = ar9003_hw_configpcipowersave;

	ar9003_hw_attach_phy_ops(ah);
	ar9003_hw_attach_calib_ops(ah);
	ar9003_hw_attach_mac_ops(ah);
	}