bool ar9003_mci_start_reset(struct ath_hw *ah, struct ath9k_channel *chan)
{
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci;
u32 payload[4] = {0, 0, 0, 0};
ar9003_mci_2g5g_changed(ah, IS_CHAN_2GHZ(chan));
if (mci_hw->bt_state != MCI_BT_CAL_START)
return false;
mci_hw->bt_state = MCI_BT_CAL;
ar9003_mci_disable_interrupt(ah);
MCI_GPM_SET_CAL_TYPE(payload, MCI_GPM_WLAN_CAL_GRANT);
ar9003_mci_send_message(ah, MCI_GPM, 0, payload,
16, true, false);
if (ar9003_mci_wait_for_gpm(ah, MCI_GPM_BT_CAL_DONE,
0, 25000))
ath_dbg(common, MCI, "MCI BT_CAL_DONE received\n");
else
ath_dbg(common, MCI,
"MCI BT_CAL_DONE not received\n");
mci_hw->bt_state = MCI_BT_AWAKE;
ar9003_mci_enable_interrupt(ah);
return true;
}
int ar9003_mci_end_reset(struct ath_hw *ah, struct ath9k_channel *chan,
struct ath9k_hw_cal_data *caldata)
{
struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci;
if (!mci_hw->ready)
return 0;
if (!IS_CHAN_2GHZ(chan) || (mci_hw->bt_state != MCI_BT_SLEEP))
goto exit;
if (!ar9003_mci_check_int(ah, AR_MCI_INTERRUPT_RX_MSG_REMOTE_RESET) &&
!ar9003_mci_check_int(ah, AR_MCI_INTERRUPT_RX_MSG_REQ_WAKE))
goto exit;
/*
* BT is sleeping. Check if BT wakes up during
* WLAN calibration. If BT wakes up during
* WLAN calibration, need to go through all
* message exchanges again and recal.
*/
REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_RAW,
(AR_MCI_INTERRUPT_RX_MSG_REMOTE_RESET |
AR_MCI_INTERRUPT_RX_MSG_REQ_WAKE));
ar9003_mci_remote_reset(ah, true);
ar9003_mci_send_sys_waking(ah, true);
udelay(1);
if (IS_CHAN_2GHZ(chan))
ar9003_mci_send_lna_transfer(ah, true);
mci_hw->bt_state = MCI_BT_AWAKE;
REG_CLR_BIT(ah, AR_PHY_TIMING4,
1 << AR_PHY_TIMING_CONTROL4_DO_GAIN_DC_IQ_CAL_SHIFT);
if (caldata) {
caldata->done_txiqcal_once = false;
caldata->done_txclcal_once = false;
caldata->rtt_done = false;
}
if (!ath9k_hw_init_cal(ah, chan))
return -EIO;
REG_SET_BIT(ah, AR_PHY_TIMING4,
1 << AR_PHY_TIMING_CONTROL4_DO_GAIN_DC_IQ_CAL_SHIFT);
exit:
ar9003_mci_enable_interrupt(ah);
return 0;
}
int ar9003_mci_end_reset(struct ath_hw *ah, struct ath9k_channel *chan,
struct ath9k_hw_cal_data *caldata)
{
struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci;
if (!mci_hw->ready)
return 0;
if (!IS_CHAN_2GHZ(chan) || (mci_hw->bt_state != MCI_BT_SLEEP))
goto exit;
if (ar9003_mci_check_int(ah, AR_MCI_INTERRUPT_RX_MSG_REMOTE_RESET) ||
ar9003_mci_check_int(ah, AR_MCI_INTERRUPT_RX_MSG_REQ_WAKE)) {
REG_WRITE(ah, AR_MCI_INTERRUPT_RX_MSG_RAW,
AR_MCI_INTERRUPT_RX_MSG_REMOTE_RESET |
AR_MCI_INTERRUPT_RX_MSG_REQ_WAKE);
ar9003_mci_remote_reset(ah, true);
ar9003_mci_send_sys_waking(ah, true);
udelay(1);
if (IS_CHAN_2GHZ(chan))
ar9003_mci_send_lna_transfer(ah, true);
mci_hw->bt_state = MCI_BT_AWAKE;
if (caldata) {
caldata->done_txiqcal_once = false;
caldata->done_txclcal_once = false;
caldata->rtt_hist.num_readings = 0;
}
if (!ath9k_hw_init_cal(ah, chan))
return -EIO;
}
exit:
ar9003_mci_enable_interrupt(ah);
return 0;
}
bool ar9003_mci_start_reset(struct ath_hw *ah, struct ath9k_channel *chan)
{
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci;
u32 payload[4] = {0, 0, 0, 0};
ar9003_mci_2g5g_changed(ah, IS_CHAN_2GHZ(chan));
if (mci_hw->bt_state != MCI_BT_CAL_START)
return false;
mci_hw->bt_state = MCI_BT_CAL;
/*
* MCI FIX: disable mci interrupt here. This is to avoid
* SW_MSG_DONE or RX_MSG bits to trigger MCI_INT and
* lead to mci_intr reentry.
*/
ar9003_mci_disable_interrupt(ah);
MCI_GPM_SET_CAL_TYPE(payload, MCI_GPM_WLAN_CAL_GRANT);
ar9003_mci_send_message(ah, MCI_GPM, 0, payload,
16, true, false);
/* Wait BT calibration to be completed for 25ms */
if (ar9003_mci_wait_for_gpm(ah, MCI_GPM_BT_CAL_DONE,
0, 25000))
ath_dbg(common, MCI, "MCI BT_CAL_DONE received\n");
else
ath_dbg(common, MCI,
"MCI BT_CAL_DONE not received\n");
mci_hw->bt_state = MCI_BT_AWAKE;
/* MCI FIX: enable mci interrupt here */
ar9003_mci_enable_interrupt(ah);
return true;
}
void ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g,
bool is_full_sleep)
{
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
u32 regval;
ath_dbg(common, MCI, "MCI Reset (full_sleep = %d, is_2g = %d)\n",
is_full_sleep, is_2g);
if (!mci->gpm_addr && !mci->sched_addr) {
ath_dbg(common, MCI,
"MCI GPM and schedule buffers are not allocated\n");
return;
}
if (REG_READ(ah, AR_BTCOEX_CTRL) == 0xdeadbeef) {
ath_dbg(common, MCI, "BTCOEX control register is dead\n");
return;
}
/* Program MCI DMA related registers */
REG_WRITE(ah, AR_MCI_GPM_0, mci->gpm_addr);
REG_WRITE(ah, AR_MCI_GPM_1, mci->gpm_len);
REG_WRITE(ah, AR_MCI_SCHD_TABLE_0, mci->sched_addr);
/*
* To avoid MCI state machine be affected by incoming remote MCI msgs,
* MCI mode will be enabled later, right before reset the MCI TX and RX.
*/
regval = SM(1, AR_BTCOEX_CTRL_AR9462_MODE) |
SM(1, AR_BTCOEX_CTRL_WBTIMER_EN) |
SM(1, AR_BTCOEX_CTRL_PA_SHARED) |
SM(1, AR_BTCOEX_CTRL_LNA_SHARED) |
SM(2, AR_BTCOEX_CTRL_NUM_ANTENNAS) |
SM(3, AR_BTCOEX_CTRL_RX_CHAIN_MASK) |
SM(0, AR_BTCOEX_CTRL_1_CHAIN_ACK) |
SM(0, AR_BTCOEX_CTRL_1_CHAIN_BCN) |
SM(0, AR_BTCOEX_CTRL_ONE_STEP_LOOK_AHEAD_EN);
REG_WRITE(ah, AR_BTCOEX_CTRL, regval);
if (is_2g && !(mci->config & ATH_MCI_CONFIG_DISABLE_OSLA))
ar9003_mci_osla_setup(ah, true);
else
ar9003_mci_osla_setup(ah, false);
REG_SET_BIT(ah, AR_PHY_GLB_CONTROL,
AR_BTCOEX_CTRL_SPDT_ENABLE);
REG_RMW_FIELD(ah, AR_BTCOEX_CTRL3,
AR_BTCOEX_CTRL3_CONT_INFO_TIMEOUT, 20);
REG_RMW_FIELD(ah, AR_BTCOEX_CTRL2, AR_BTCOEX_CTRL2_RX_DEWEIGHT, 1);
REG_RMW_FIELD(ah, AR_PCU_MISC, AR_PCU_BT_ANT_PREVENT_RX, 0);
regval = MS(mci->config, ATH_MCI_CONFIG_CLK_DIV);
REG_RMW_FIELD(ah, AR_MCI_TX_CTRL, AR_MCI_TX_CTRL_CLK_DIV, regval);
REG_SET_BIT(ah, AR_BTCOEX_CTRL, AR_BTCOEX_CTRL_MCI_MODE_EN);
/* Resetting the Rx and Tx paths of MCI */
regval = REG_READ(ah, AR_MCI_COMMAND2);
regval |= SM(1, AR_MCI_COMMAND2_RESET_TX);
REG_WRITE(ah, AR_MCI_COMMAND2, regval);
udelay(1);
regval &= ~SM(1, AR_MCI_COMMAND2_RESET_TX);
REG_WRITE(ah, AR_MCI_COMMAND2, regval);
if (is_full_sleep) {
ar9003_mci_mute_bt(ah);
udelay(100);
}
/* Check pending GPM msg before MCI Reset Rx */
ar9003_mci_check_gpm_offset(ah);
regval |= SM(1, AR_MCI_COMMAND2_RESET_RX);
REG_WRITE(ah, AR_MCI_COMMAND2, regval);
udelay(1);
regval &= ~SM(1, AR_MCI_COMMAND2_RESET_RX);
REG_WRITE(ah, AR_MCI_COMMAND2, regval);
ar9003_mci_get_next_gpm_offset(ah, true, NULL);
REG_WRITE(ah, AR_MCI_MSG_ATTRIBUTES_TABLE,
(SM(0xe801, AR_MCI_MSG_ATTRIBUTES_TABLE_INVALID_HDR) |
SM(0x0000, AR_MCI_MSG_ATTRIBUTES_TABLE_CHECKSUM)));
REG_CLR_BIT(ah, AR_MCI_TX_CTRL,
AR_MCI_TX_CTRL_DISABLE_LNA_UPDATE);
ar9003_mci_observation_set_up(ah);
mci->ready = true;
ar9003_mci_prep_interface(ah);
if (en_int)
ar9003_mci_enable_interrupt(ah);
}
int ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g,
bool is_full_sleep)
{
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
u32 regval, i;
ath_dbg(common, MCI, "MCI Reset (full_sleep = %d, is_2g = %d)\n",
is_full_sleep, is_2g);
if (REG_READ(ah, AR_BTCOEX_CTRL) == 0xdeadbeef) {
ath_err(common, "BTCOEX control register is dead\n");
return -EINVAL;
}
/* Program MCI DMA related registers */
REG_WRITE(ah, AR_MCI_GPM_0, mci->gpm_addr);
REG_WRITE(ah, AR_MCI_GPM_1, mci->gpm_len);
REG_WRITE(ah, AR_MCI_SCHD_TABLE_0, mci->sched_addr);
/*
* To avoid MCI state machine be affected by incoming remote MCI msgs,
* MCI mode will be enabled later, right before reset the MCI TX and RX.
*/
if (AR_SREV_9565(ah)) {
u8 ant = MS(mci->config, ATH_MCI_CONFIG_ANT_ARCH);
if (ant == ATH_MCI_ANT_ARCH_1_ANT_PA_LNA_SHARED)
ar9003_mci_set_btcoex_ctrl_9565_1ANT(ah);
else
ar9003_mci_set_btcoex_ctrl_9565_2ANT(ah);
} else {
ar9003_mci_set_btcoex_ctrl_9462(ah);
}
if (is_2g && !(mci->config & ATH_MCI_CONFIG_DISABLE_OSLA))
ar9003_mci_osla_setup(ah, true);
else
ar9003_mci_osla_setup(ah, false);
REG_SET_BIT(ah, AR_PHY_GLB_CONTROL,
AR_BTCOEX_CTRL_SPDT_ENABLE);
REG_RMW_FIELD(ah, AR_BTCOEX_CTRL3,
AR_BTCOEX_CTRL3_CONT_INFO_TIMEOUT, 20);
REG_RMW_FIELD(ah, AR_BTCOEX_CTRL2, AR_BTCOEX_CTRL2_RX_DEWEIGHT, 0);
REG_RMW_FIELD(ah, AR_PCU_MISC, AR_PCU_BT_ANT_PREVENT_RX, 0);
/* Set the time out to 3.125ms (5 BT slots) */
REG_RMW_FIELD(ah, AR_BTCOEX_WL_LNA, AR_BTCOEX_WL_LNA_TIMEOUT, 0x3D090);
/* concurrent tx priority */
if (mci->config & ATH_MCI_CONFIG_CONCUR_TX) {
REG_RMW_FIELD(ah, AR_BTCOEX_CTRL2,
AR_BTCOEX_CTRL2_DESC_BASED_TXPWR_ENABLE, 0);
REG_RMW_FIELD(ah, AR_BTCOEX_CTRL2,
AR_BTCOEX_CTRL2_TXPWR_THRESH, 0x7f);
REG_RMW_FIELD(ah, AR_BTCOEX_CTRL,
AR_BTCOEX_CTRL_REDUCE_TXPWR, 0);
for (i = 0; i < 8; i++)
REG_WRITE(ah, AR_BTCOEX_MAX_TXPWR(i), 0x7f7f7f7f);
}
regval = MS(mci->config, ATH_MCI_CONFIG_CLK_DIV);
REG_RMW_FIELD(ah, AR_MCI_TX_CTRL, AR_MCI_TX_CTRL_CLK_DIV, regval);
REG_SET_BIT(ah, AR_BTCOEX_CTRL, AR_BTCOEX_CTRL_MCI_MODE_EN);
/* Resetting the Rx and Tx paths of MCI */
regval = REG_READ(ah, AR_MCI_COMMAND2);
regval |= SM(1, AR_MCI_COMMAND2_RESET_TX);
REG_WRITE(ah, AR_MCI_COMMAND2, regval);
udelay(1);
regval &= ~SM(1, AR_MCI_COMMAND2_RESET_TX);
REG_WRITE(ah, AR_MCI_COMMAND2, regval);
if (is_full_sleep) {
ar9003_mci_mute_bt(ah);
udelay(100);
}
/* Check pending GPM msg before MCI Reset Rx */
ar9003_mci_check_gpm_offset(ah);
regval |= SM(1, AR_MCI_COMMAND2_RESET_RX);
REG_WRITE(ah, AR_MCI_COMMAND2, regval);
udelay(1);
regval &= ~SM(1, AR_MCI_COMMAND2_RESET_RX);
REG_WRITE(ah, AR_MCI_COMMAND2, regval);
/* Init GPM offset after MCI Reset Rx */
ar9003_mci_state(ah, MCI_STATE_INIT_GPM_OFFSET);
REG_WRITE(ah, AR_MCI_MSG_ATTRIBUTES_TABLE,
(SM(0xe801, AR_MCI_MSG_ATTRIBUTES_TABLE_INVALID_HDR) |
SM(0x0000, AR_MCI_MSG_ATTRIBUTES_TABLE_CHECKSUM)));
if (MCI_ANT_ARCH_PA_LNA_SHARED(mci))
REG_CLR_BIT(ah, AR_MCI_TX_CTRL,
AR_MCI_TX_CTRL_DISABLE_LNA_UPDATE);
else
REG_SET_BIT(ah, AR_MCI_TX_CTRL,
AR_MCI_TX_CTRL_DISABLE_LNA_UPDATE);
ar9003_mci_observation_set_up(ah);
mci->ready = true;
ar9003_mci_prep_interface(ah);
ar9003_mci_stat_setup(ah);
if (en_int)
ar9003_mci_enable_interrupt(ah);
if (ath9k_hw_is_aic_enabled(ah))
ar9003_aic_start_normal(ah);
return 0;
}