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path: root/drivers/net/wireless/ath/ath9k/mci.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/mci.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/mci.c94
1 files changed, 64 insertions, 30 deletions
diff --git a/drivers/net/wireless/ath/ath9k/mci.c b/drivers/net/wireless/ath/ath9k/mci.c
index fb536e7e661..ec2d7c80756 100644
--- a/drivers/net/wireless/ath/ath9k/mci.c
+++ b/drivers/net/wireless/ath/ath9k/mci.c
@@ -80,6 +80,7 @@ void ath_mci_flush_profile(struct ath_mci_profile *mci)
struct ath_mci_profile_info *info, *tinfo;
mci->aggr_limit = 0;
+ mci->num_mgmt = 0;
if (list_empty(&mci->info))
return;
@@ -120,7 +121,14 @@ static void ath_mci_update_scheme(struct ath_softc *sc)
if (mci_hw->config & ATH_MCI_CONFIG_DISABLE_TUNING)
goto skip_tuning;
+ mci->aggr_limit = 0;
btcoex->duty_cycle = ath_mci_duty_cycle[num_profile];
+ btcoex->btcoex_period = ATH_MCI_DEF_BT_PERIOD;
+ if (NUM_PROF(mci))
+ btcoex->bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
+ else
+ btcoex->bt_stomp_type = mci->num_mgmt ? ATH_BTCOEX_STOMP_ALL :
+ ATH_BTCOEX_STOMP_LOW;
if (num_profile == 1) {
info = list_first_entry(&mci->info,
@@ -132,7 +140,8 @@ static void ath_mci_update_scheme(struct ath_softc *sc)
else if (info->T == 6) {
mci->aggr_limit = 6;
btcoex->duty_cycle = 30;
- }
+ } else
+ mci->aggr_limit = 6;
ath_dbg(common, MCI,
"Single SCO, aggregation limit %d 1/4 ms\n",
mci->aggr_limit);
@@ -191,6 +200,23 @@ skip_tuning:
ath9k_btcoex_timer_resume(sc);
}
+static void ath_mci_wait_btcal_done(struct ath_softc *sc)
+{
+ struct ath_hw *ah = sc->sc_ah;
+
+ /* Stop tx & rx */
+ ieee80211_stop_queues(sc->hw);
+ ath_stoprecv(sc);
+ ath_drain_all_txq(sc, false);
+
+ /* Wait for cal done */
+ ar9003_mci_start_reset(ah, ah->curchan);
+
+ /* Resume tx & rx */
+ ath_startrecv(sc);
+ ieee80211_wake_queues(sc->hw);
+}
+
static void ath_mci_cal_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload)
{
struct ath_hw *ah = sc->sc_ah;
@@ -201,8 +227,8 @@ static void ath_mci_cal_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload)
switch (opcode) {
case MCI_GPM_BT_CAL_REQ:
if (mci_hw->bt_state == MCI_BT_AWAKE) {
- ar9003_mci_state(ah, MCI_STATE_SET_BT_CAL_START);
- ath9k_queue_reset(sc, RESET_TYPE_MCI);
+ mci_hw->bt_state = MCI_BT_CAL_START;
+ ath_mci_wait_btcal_done(sc);
}
ath_dbg(common, MCI, "MCI State : %d\n", mci_hw->bt_state);
break;
@@ -224,8 +250,8 @@ static void ath9k_mci_work(struct work_struct *work)
ath_mci_update_scheme(sc);
}
-static void ath_mci_process_profile(struct ath_softc *sc,
- struct ath_mci_profile_info *info)
+static u8 ath_mci_process_profile(struct ath_softc *sc,
+ struct ath_mci_profile_info *info)
{
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_btcoex *btcoex = &sc->btcoex;
@@ -251,25 +277,15 @@ static void ath_mci_process_profile(struct ath_softc *sc,
if (info->start) {
if (!entry && !ath_mci_add_profile(common, mci, info))
- return;
+ return 0;
} else
ath_mci_del_profile(common, mci, entry);
- btcoex->btcoex_period = ATH_MCI_DEF_BT_PERIOD;
- mci->aggr_limit = mci->num_sco ? 6 : 0;
-
- btcoex->duty_cycle = ath_mci_duty_cycle[NUM_PROF(mci)];
- if (NUM_PROF(mci))
- btcoex->bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
- else
- btcoex->bt_stomp_type = mci->num_mgmt ? ATH_BTCOEX_STOMP_ALL :
- ATH_BTCOEX_STOMP_LOW;
-
- ieee80211_queue_work(sc->hw, &sc->mci_work);
+ return 1;
}
-static void ath_mci_process_status(struct ath_softc *sc,
- struct ath_mci_profile_status *status)
+static u8 ath_mci_process_status(struct ath_softc *sc,
+ struct ath_mci_profile_status *status)
{
struct ath_btcoex *btcoex = &sc->btcoex;
struct ath_mci_profile *mci = &btcoex->mci;
@@ -278,14 +294,14 @@ static void ath_mci_process_status(struct ath_softc *sc,
/* Link status type are not handled */
if (status->is_link)
- return;
+ return 0;
info.conn_handle = status->conn_handle;
if (ath_mci_find_profile(mci, &info))
- return;
+ return 0;
if (status->conn_handle >= ATH_MCI_MAX_PROFILE)
- return;
+ return 0;
if (status->is_critical)
__set_bit(status->conn_handle, mci->status);
@@ -299,7 +315,9 @@ static void ath_mci_process_status(struct ath_softc *sc,
} while (++i < ATH_MCI_MAX_PROFILE);
if (old_num_mgmt != mci->num_mgmt)
- ieee80211_queue_work(sc->hw, &sc->mci_work);
+ return 1;
+
+ return 0;
}
static void ath_mci_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload)
@@ -308,9 +326,16 @@ static void ath_mci_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload)
struct ath_mci_profile_info profile_info;
struct ath_mci_profile_status profile_status;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
- u8 major, minor;
+ u8 major, minor, update_scheme = 0;
u32 seq_num;
+ if (ar9003_mci_state(ah, MCI_STATE_NEED_FLUSH_BT_INFO) &&
+ ar9003_mci_state(ah, MCI_STATE_ENABLE)) {
+ ath_dbg(common, MCI, "(MCI) Need to flush BT profiles\n");
+ ath_mci_flush_profile(&sc->btcoex.mci);
+ ar9003_mci_state(ah, MCI_STATE_SEND_STATUS_QUERY);
+ }
+
switch (opcode) {
case MCI_GPM_COEX_VERSION_QUERY:
ar9003_mci_state(ah, MCI_STATE_SEND_WLAN_COEX_VERSION);
@@ -336,7 +361,7 @@ static void ath_mci_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload)
break;
}
- ath_mci_process_profile(sc, &profile_info);
+ update_scheme += ath_mci_process_profile(sc, &profile_info);
break;
case MCI_GPM_COEX_BT_STATUS_UPDATE:
profile_status.is_link = *(rx_payload +
@@ -352,12 +377,14 @@ static void ath_mci_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload)
profile_status.is_link, profile_status.conn_handle,
profile_status.is_critical, seq_num);
- ath_mci_process_status(sc, &profile_status);
+ update_scheme += ath_mci_process_status(sc, &profile_status);
break;
default:
ath_dbg(common, MCI, "Unknown GPM COEX message = 0x%02x\n", opcode);
break;
}
+ if (update_scheme)
+ ieee80211_queue_work(sc->hw, &sc->mci_work);
}
int ath_mci_setup(struct ath_softc *sc)
@@ -365,6 +392,7 @@ int ath_mci_setup(struct ath_softc *sc)
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ath_mci_coex *mci = &sc->mci_coex;
struct ath_mci_buf *buf = &mci->sched_buf;
+ int ret;
buf->bf_addr = dma_alloc_coherent(sc->dev,
ATH_MCI_SCHED_BUF_SIZE + ATH_MCI_GPM_BUF_SIZE,
@@ -384,9 +412,13 @@ int ath_mci_setup(struct ath_softc *sc)
mci->gpm_buf.bf_addr = (u8 *)mci->sched_buf.bf_addr + mci->sched_buf.bf_len;
mci->gpm_buf.bf_paddr = mci->sched_buf.bf_paddr + mci->sched_buf.bf_len;
- ar9003_mci_setup(sc->sc_ah, mci->gpm_buf.bf_paddr,
- mci->gpm_buf.bf_addr, (mci->gpm_buf.bf_len >> 4),
- mci->sched_buf.bf_paddr);
+ ret = ar9003_mci_setup(sc->sc_ah, mci->gpm_buf.bf_paddr,
+ mci->gpm_buf.bf_addr, (mci->gpm_buf.bf_len >> 4),
+ mci->sched_buf.bf_paddr);
+ if (ret) {
+ ath_err(common, "Failed to initialize MCI\n");
+ return ret;
+ }
INIT_WORK(&sc->mci_work, ath9k_mci_work);
ath_dbg(common, MCI, "MCI Initialized\n");
@@ -551,9 +583,11 @@ void ath_mci_intr(struct ath_softc *sc)
}
if ((mci_int & AR_MCI_INTERRUPT_RX_INVALID_HDR) ||
- (mci_int & AR_MCI_INTERRUPT_CONT_INFO_TIMEOUT))
+ (mci_int & AR_MCI_INTERRUPT_CONT_INFO_TIMEOUT)) {
mci_int &= ~(AR_MCI_INTERRUPT_RX_INVALID_HDR |
AR_MCI_INTERRUPT_CONT_INFO_TIMEOUT);
+ ath_mci_msg(sc, MCI_GPM_COEX_NOOP, NULL);
+ }
}
void ath_mci_enable(struct ath_softc *sc)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-19 10:00:34 +0000