void ar9003_mci_stop_bt(struct ath_hw *ah, bool save_fullsleep)
{
struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci;
ar9003_mci_disable_interrupt(ah);
if (mci_hw->ready && !save_fullsleep) {
ar9003_mci_mute_bt(ah);
udelay(20);
REG_WRITE(ah, AR_BTCOEX_CTRL, 0);
}
mci_hw->bt_state = MCI_BT_SLEEP;
mci_hw->ready = false;
}
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;
}
