Return-path: Received: from wolverine01.qualcomm.com ([199.106.114.254]:22500 "EHLO wolverine01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753795Ab2BUJXY (ORCPT ); Tue, 21 Feb 2012 04:23:24 -0500 From: Sujith Manoharan MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Message-ID: <20291.25217.112736.268239@gargle.gargle.HOWL> (sfid-20120221_102330_294900_633FB7C3) Date: Tue, 21 Feb 2012 14:53:13 +0530 To: CC: Subject: [RFC/WIP 12/22] ath9k_hw: Setup MCI calibration using a helper Sender: linux-wireless-owner@vger.kernel.org List-ID: Signed-off-by: Sujith Manoharan --- drivers/net/wireless/ath/ath9k/ar9003_calib.c | 42 ++------------------- drivers/net/wireless/ath/ath9k/ar9003_mci.c | 48 +++++++++++++++++++++++++ drivers/net/wireless/ath/ath9k/hw.h | 2 + 3 files changed, 54 insertions(+), 38 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c index 8e70f0b..63089cc 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c @@ -925,7 +925,6 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah, { struct ath_common *common = ath9k_hw_common(ah); struct ath9k_hw_cal_data *caldata = ah->caldata; - struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci; bool txiqcal_done = false, txclcal_done = false; bool is_reusable = true, status = true; bool run_rtt_cal = false, run_agc_cal; @@ -998,30 +997,8 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah, } else if (caldata && !caldata->done_txiqcal_once) run_agc_cal = true; - if (mci && IS_CHAN_2GHZ(chan) && - (mci_hw->bt_state == MCI_BT_AWAKE) && - run_agc_cal && - !(mci_hw->config & ATH_MCI_CONFIG_DISABLE_MCI_CAL)) { - - u32 pld[4] = {0, 0, 0, 0}; - - /* send CAL_REQ only when BT is AWAKE. */ - ath_dbg(common, MCI, "MCI send WLAN_CAL_REQ 0x%x\n", - mci_hw->wlan_cal_seq); - MCI_GPM_SET_CAL_TYPE(pld, MCI_GPM_WLAN_CAL_REQ); - pld[MCI_GPM_WLAN_CAL_W_SEQUENCE] = mci_hw->wlan_cal_seq++; - ar9003_mci_send_message(ah, MCI_GPM, 0, pld, 16, true, false); - - /* Wait BT_CAL_GRANT for 50ms */ - ath_dbg(common, MCI, "MCI wait for BT_CAL_GRANT\n"); - - if (ar9003_mci_wait_for_gpm(ah, MCI_GPM_BT_CAL_GRANT, 0, 50000)) - ath_dbg(common, MCI, "MCI got BT_CAL_GRANT\n"); - else { - is_reusable = false; - ath_dbg(common, MCI, "\nMCI BT is not responding\n"); - } - } + if (mci && IS_CHAN_2GHZ(chan) && run_agc_cal) + ar9003_mci_init_cal_req(ah, &is_reusable); txiqcal_done = ar9003_hw_tx_iq_cal_run(ah); REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS); @@ -1041,19 +1018,8 @@ skip_tx_iqcal: 0, AH_WAIT_TIMEOUT); } - if (mci && IS_CHAN_2GHZ(chan) && - (mci_hw->bt_state == MCI_BT_AWAKE) && - run_agc_cal && - !(mci_hw->config & ATH_MCI_CONFIG_DISABLE_MCI_CAL)) { - - u32 pld[4] = {0, 0, 0, 0}; - - ath_dbg(common, MCI, "MCI Send WLAN_CAL_DONE 0x%x\n", - mci_hw->wlan_cal_done); - MCI_GPM_SET_CAL_TYPE(pld, MCI_GPM_WLAN_CAL_DONE); - pld[MCI_GPM_WLAN_CAL_W_SEQUENCE] = mci_hw->wlan_cal_done++; - ar9003_mci_send_message(ah, MCI_GPM, 0, pld, 16, true, false); - } + if (mci && IS_CHAN_2GHZ(chan) && run_agc_cal) + ar9003_mci_init_cal_done(ah); if (rtt && !run_rtt_cal) { agc_ctrl |= agc_supp_cals; diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.c b/drivers/net/wireless/ath/ath9k/ar9003_mci.c index f8dd0b2..e657578 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_mci.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.c @@ -1014,6 +1014,54 @@ bool ar9003_mci_send_message(struct ath_hw *ah, u8 header, u32 flag, } EXPORT_SYMBOL(ar9003_mci_send_message); +void ar9003_mci_init_cal_req(struct ath_hw *ah, bool *is_reusable) +{ + struct ath_common *common = ath9k_hw_common(ah); + struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci; + u32 pld[4] = {0, 0, 0, 0}; + + if ((mci_hw->bt_state != MCI_BT_AWAKE) || + (mci_hw->config & ATH_MCI_CONFIG_DISABLE_MCI_CAL)) + return; + + /* send CAL_REQ only when BT is AWAKE. */ + ath_dbg(common, MCI, "MCI send WLAN_CAL_REQ 0x%x\n", + mci_hw->wlan_cal_seq); + + MCI_GPM_SET_CAL_TYPE(pld, MCI_GPM_WLAN_CAL_REQ); + pld[MCI_GPM_WLAN_CAL_W_SEQUENCE] = mci_hw->wlan_cal_seq++; + + ar9003_mci_send_message(ah, MCI_GPM, 0, pld, 16, true, false); + + /* Wait BT_CAL_GRANT for 50ms */ + ath_dbg(common, MCI, "MCI wait for BT_CAL_GRANT\n"); + + if (ar9003_mci_wait_for_gpm(ah, MCI_GPM_BT_CAL_GRANT, 0, 50000)) { + ath_dbg(common, MCI, "MCI got BT_CAL_GRANT\n"); + } else { + is_reusable = false; + ath_dbg(common, MCI, "MCI BT is not responding\n"); + } +} + +void ar9003_mci_init_cal_done(struct ath_hw *ah) +{ + struct ath_common *common = ath9k_hw_common(ah); + struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci; + u32 pld[4] = {0, 0, 0, 0}; + + if ((mci_hw->bt_state != MCI_BT_AWAKE) || + (mci_hw->config & ATH_MCI_CONFIG_DISABLE_MCI_CAL)) + return; + + ath_dbg(common, MCI, "MCI Send WLAN_CAL_DONE 0x%x\n", + mci_hw->wlan_cal_done); + + MCI_GPM_SET_CAL_TYPE(pld, MCI_GPM_WLAN_CAL_DONE); + pld[MCI_GPM_WLAN_CAL_W_SEQUENCE] = mci_hw->wlan_cal_done++; + ar9003_mci_send_message(ah, MCI_GPM, 0, pld, 16, true, false); +} + void ar9003_mci_setup(struct ath_hw *ah, u32 gpm_addr, void *gpm_buf, u16 len, u32 sched_addr) { diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h index 07dd53e..ff75254 100644 --- a/drivers/net/wireless/ath/ath9k/hw.h +++ b/drivers/net/wireless/ath/ath9k/hw.h @@ -1211,6 +1211,8 @@ bool ar9003_mci_send_message(struct ath_hw *ah, u8 header, u32 flag, bool check_bt); void ar9003_mci_mute_bt(struct ath_hw *ah); u32 ar9003_mci_state(struct ath_hw *ah, u32 state_type, u32 *p_data); +void ar9003_mci_init_cal_req(struct ath_hw *ah, bool *is_reusable); +void ar9003_mci_init_cal_done(struct ath_hw *ah); void ar9003_mci_setup(struct ath_hw *ah, u32 gpm_addr, void *gpm_buf, u16 len, u32 sched_addr); void ar9003_mci_cleanup(struct ath_hw *ah); -- 1.7.9.1