diff options
| author | Sujith Manoharan <c_manoha@qca.qualcomm.com> | 2015-02-16 05:20:00 (GMT) |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2015-03-03 12:55:24 (GMT) |
| commit | ad1dc638725d7c5cc96a1b4556f456c303a553c7 (patch) | |
| tree | 4fe563cb1892486541e9a9716af20d72e7d9ce7f /drivers/net/wireless/ath/ath9k/ar9003_mci.c | |
| parent | bc80d526d30208a4aad87a694209572ba6c5877a (diff) | |
| download | linux-ad1dc638725d7c5cc96a1b4556f456c303a553c7.tar.xz | |
ath9k: Fix GPM initialization
Handle MCI_STATE_INIT_GPM_OFFSET separately and do not
overload ar9003_mci_get_next_gpm_offset() with a special
case.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/ar9003_mci.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/ar9003_mci.c | 27 |
1 files changed, 13 insertions, 14 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.c b/drivers/net/wireless/ath/ath9k/ar9003_mci.c index 505dfe3..133b867 100644 --- a/drivers/net/wireless/ath/ath9k/ar9003_mci.c +++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.c @@ -593,7 +593,7 @@ static u32 ar9003_mci_wait_for_gpm(struct ath_hw *ah, u8 gpm_type, if (!time_out) break; - offset = ar9003_mci_get_next_gpm_offset(ah, false, &more_data); + offset = ar9003_mci_get_next_gpm_offset(ah, &more_data); if (offset == MCI_GPM_INVALID) continue; @@ -657,7 +657,7 @@ static u32 ar9003_mci_wait_for_gpm(struct ath_hw *ah, u8 gpm_type, time_out = 0; while (more_data == MCI_GPM_MORE) { - offset = ar9003_mci_get_next_gpm_offset(ah, false, &more_data); + offset = ar9003_mci_get_next_gpm_offset(ah, &more_data); if (offset == MCI_GPM_INVALID) break; @@ -986,7 +986,8 @@ int ar9003_mci_reset(struct ath_hw *ah, bool en_int, bool is_2g, regval &= ~SM(1, AR_MCI_COMMAND2_RESET_RX); REG_WRITE(ah, AR_MCI_COMMAND2, regval); - ar9003_mci_get_next_gpm_offset(ah, true, NULL); + /* 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) | @@ -1280,6 +1281,14 @@ u32 ar9003_mci_state(struct ath_hw *ah, u32 state_type) } value &= AR_BTCOEX_CTRL_MCI_MODE_EN; break; + case MCI_STATE_INIT_GPM_OFFSET: + value = MS(REG_READ(ah, AR_MCI_GPM_1), AR_MCI_GPM_WRITE_PTR); + + if (value < mci->gpm_len) + mci->gpm_idx = value; + else + mci->gpm_idx = 0; + break; case MCI_STATE_LAST_SCHD_MSG_OFFSET: value = MS(REG_READ(ah, AR_MCI_RX_STATUS), AR_MCI_RX_LAST_SCHD_MSG_INDEX); @@ -1426,21 +1435,11 @@ void ar9003_mci_check_gpm_offset(struct ath_hw *ah) mci->gpm_idx = 0; } -u32 ar9003_mci_get_next_gpm_offset(struct ath_hw *ah, bool first, u32 *more) +u32 ar9003_mci_get_next_gpm_offset(struct ath_hw *ah, u32 *more) { struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci; u32 offset, more_gpm = 0, gpm_ptr; - if (first) { - gpm_ptr = MS(REG_READ(ah, AR_MCI_GPM_1), AR_MCI_GPM_WRITE_PTR); - - if (gpm_ptr >= mci->gpm_len) - gpm_ptr = 0; - - mci->gpm_idx = gpm_ptr; - return gpm_ptr; - } - /* * This could be useful to avoid new GPM message interrupt which * may lead to spurious interrupt after power sleep, or multiple |