diff options
| author | Sujith Manoharan <c_manoha@qca.qualcomm.com> | 2012-02-22 07:11:06 (GMT) |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2012-02-27 19:06:36 (GMT) |
| commit | f2f408eff7eb10a834859457b2ced5d3255d0cd3 (patch) | |
| tree | 6b88c68893d9124880b2c4b4e091b71365787d68 /drivers/net/wireless/ath/ath9k/ar9003_mci.c | |
| parent | d1ca8b8ecd18d99cf3ae0c2a9b81d3a22b4141c1 (diff) | |
| download | linux-fsl-qoriq-f2f408eff7eb10a834859457b2ced5d3255d0cd3.tar.xz | |
ath9k_hw: Setup MCI calibration using a helper
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ar9003_mci.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9003_mci.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.c b/drivers/net/wireless/ath/ath9k/ar9003_mci.c index a87d4ca1..65db2cd 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_mci.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.c @@ -1011,6 +1011,54 @@ 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) { |