/*
* 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);
}
