diff options
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/mci.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/mci.c | 668 |
1 files changed, 668 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/mci.c b/drivers/net/wireless/ath/ath9k/mci.c new file mode 100644 index 000000000000..05c23ea4c633 --- /dev/null +++ b/drivers/net/wireless/ath/ath9k/mci.c @@ -0,0 +1,668 @@ +/* + * Copyright (c) 2010-2011 Atheros Communications Inc. + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <linux/dma-mapping.h> +#include <linux/slab.h> + +#include "ath9k.h" +#include "mci.h" + +static const u8 ath_mci_duty_cycle[] = { 0, 50, 60, 70, 80, 85, 90, 95, 98 }; + +static struct ath_mci_profile_info* +ath_mci_find_profile(struct ath_mci_profile *mci, + struct ath_mci_profile_info *info) +{ + struct ath_mci_profile_info *entry; + + list_for_each_entry(entry, &mci->info, list) { + if (entry->conn_handle == info->conn_handle) + break; + } + return entry; +} + +static bool ath_mci_add_profile(struct ath_common *common, + struct ath_mci_profile *mci, + struct ath_mci_profile_info *info) +{ + struct ath_mci_profile_info *entry; + + if ((mci->num_sco == ATH_MCI_MAX_SCO_PROFILE) && + (info->type == MCI_GPM_COEX_PROFILE_VOICE)) { + ath_dbg(common, MCI, + "Too many SCO profile, failed to add new profile\n"); + return false; + } + + if (((NUM_PROF(mci) - mci->num_sco) == ATH_MCI_MAX_ACL_PROFILE) && + (info->type != MCI_GPM_COEX_PROFILE_VOICE)) { + ath_dbg(common, MCI, + "Too many ACL profile, failed to add new profile\n"); + return false; + } + + entry = ath_mci_find_profile(mci, info); + + if (entry) + memcpy(entry, info, 10); + else { + entry = kzalloc(sizeof(*entry), GFP_KERNEL); + if (!entry) + return false; + + memcpy(entry, info, 10); + INC_PROF(mci, info); + list_add_tail(&info->list, &mci->info); + } + return true; +} + +static void ath_mci_del_profile(struct ath_common *common, + struct ath_mci_profile *mci, + struct ath_mci_profile_info *info) +{ + struct ath_mci_profile_info *entry; + + entry = ath_mci_find_profile(mci, info); + + if (!entry) { + ath_dbg(common, MCI, "Profile to be deleted not found\n"); + return; + } + DEC_PROF(mci, entry); + list_del(&entry->list); + kfree(entry); +} + +void ath_mci_flush_profile(struct ath_mci_profile *mci) +{ + struct ath_mci_profile_info *info, *tinfo; + + list_for_each_entry_safe(info, tinfo, &mci->info, list) { + list_del(&info->list); + DEC_PROF(mci, info); + kfree(info); + } + mci->aggr_limit = 0; +} + +static void ath_mci_adjust_aggr_limit(struct ath_btcoex *btcoex) +{ + struct ath_mci_profile *mci = &btcoex->mci; + u32 wlan_airtime = btcoex->btcoex_period * + (100 - btcoex->duty_cycle) / 100; + + /* + * Scale: wlan_airtime is in ms, aggr_limit is in 0.25 ms. + * When wlan_airtime is less than 4ms, aggregation limit has to be + * adjusted half of wlan_airtime to ensure that the aggregation can fit + * without collision with BT traffic. + */ + if ((wlan_airtime <= 4) && + (!mci->aggr_limit || (mci->aggr_limit > (2 * wlan_airtime)))) + mci->aggr_limit = 2 * wlan_airtime; +} + +static void ath_mci_update_scheme(struct ath_softc *sc) +{ + struct ath_common *common = ath9k_hw_common(sc->sc_ah); + struct ath_btcoex *btcoex = &sc->btcoex; + struct ath_mci_profile *mci = &btcoex->mci; + struct ath_mci_profile_info *info; + u32 num_profile = NUM_PROF(mci); + + if (num_profile == 1) { + info = list_first_entry(&mci->info, + struct ath_mci_profile_info, + list); + if (mci->num_sco && info->T == 12) { + mci->aggr_limit = 8; + ath_dbg(common, MCI, + "Single SCO, aggregation limit 2 ms\n"); + } else if ((info->type == MCI_GPM_COEX_PROFILE_BNEP) && + !info->master) { + btcoex->btcoex_period = 60; + ath_dbg(common, MCI, + "Single slave PAN/FTP, bt period 60 ms\n"); + } else if ((info->type == MCI_GPM_COEX_PROFILE_HID) && + (info->T > 0 && info->T < 50) && + (info->A > 1 || info->W > 1)) { + btcoex->duty_cycle = 30; + mci->aggr_limit = 8; + ath_dbg(common, MCI, + "Multiple attempt/timeout single HID " + "aggregation limit 2 ms dutycycle 30%%\n"); + } + } else if ((num_profile == 2) && (mci->num_hid == 2)) { + btcoex->duty_cycle = 30; + mci->aggr_limit = 8; + ath_dbg(common, MCI, + "Two HIDs aggregation limit 2 ms dutycycle 30%%\n"); + } else if (num_profile > 3) { + mci->aggr_limit = 6; + ath_dbg(common, MCI, + "Three or more profiles aggregation limit 1.5 ms\n"); + } + + if (IS_CHAN_2GHZ(sc->sc_ah->curchan)) { + if (IS_CHAN_HT(sc->sc_ah->curchan)) + ath_mci_adjust_aggr_limit(btcoex); + else + btcoex->btcoex_period >>= 1; + } + + ath9k_hw_btcoex_disable(sc->sc_ah); + ath9k_btcoex_timer_pause(sc); + + if (IS_CHAN_5GHZ(sc->sc_ah->curchan)) + return; + + btcoex->duty_cycle += (mci->num_bdr ? ATH_MCI_MAX_DUTY_CYCLE : 0); + if (btcoex->duty_cycle > ATH_MCI_MAX_DUTY_CYCLE) + btcoex->duty_cycle = ATH_MCI_MAX_DUTY_CYCLE; + + btcoex->btcoex_period *= 1000; + btcoex->btcoex_no_stomp = btcoex->btcoex_period * + (100 - btcoex->duty_cycle) / 100; + + ath9k_hw_btcoex_enable(sc->sc_ah); + ath9k_btcoex_timer_resume(sc); +} + + +static void ath_mci_cal_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload) +{ + struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); + u32 payload[4] = {0, 0, 0, 0}; + + switch (opcode) { + case MCI_GPM_BT_CAL_REQ: + + ath_dbg(common, MCI, "MCI received BT_CAL_REQ\n"); + + if (ar9003_mci_state(ah, MCI_STATE_BT, NULL) == MCI_BT_AWAKE) { + ar9003_mci_state(ah, MCI_STATE_SET_BT_CAL_START, NULL); + ieee80211_queue_work(sc->hw, &sc->hw_reset_work); + } else + ath_dbg(common, MCI, "MCI State mismatches: %d\n", + ar9003_mci_state(ah, MCI_STATE_BT, NULL)); + + break; + + case MCI_GPM_BT_CAL_DONE: + + ath_dbg(common, MCI, "MCI received BT_CAL_DONE\n"); + + if (ar9003_mci_state(ah, MCI_STATE_BT, NULL) == MCI_BT_CAL) + ath_dbg(common, MCI, "MCI error illegal!\n"); + else + ath_dbg(common, MCI, "MCI BT not in CAL state\n"); + + break; + + case MCI_GPM_BT_CAL_GRANT: + + ath_dbg(common, MCI, "MCI received BT_CAL_GRANT\n"); + + /* Send WLAN_CAL_DONE for now */ + ath_dbg(common, MCI, "MCI send WLAN_CAL_DONE\n"); + MCI_GPM_SET_CAL_TYPE(payload, MCI_GPM_WLAN_CAL_DONE); + ar9003_mci_send_message(sc->sc_ah, MCI_GPM, 0, payload, + 16, false, true); + break; + + default: + ath_dbg(common, MCI, "MCI Unknown GPM CAL message\n"); + break; + } +} + +static void 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; + struct ath_mci_profile *mci = &btcoex->mci; + + if (info->start) { + if (!ath_mci_add_profile(common, mci, info)) + return; + } else + ath_mci_del_profile(common, mci, info); + + btcoex->btcoex_period = ATH_MCI_DEF_BT_PERIOD; + mci->aggr_limit = mci->num_sco ? 6 : 0; + if (NUM_PROF(mci)) { + btcoex->bt_stomp_type = ATH_BTCOEX_STOMP_LOW; + btcoex->duty_cycle = ath_mci_duty_cycle[NUM_PROF(mci)]; + } else { + btcoex->bt_stomp_type = mci->num_mgmt ? ATH_BTCOEX_STOMP_ALL : + ATH_BTCOEX_STOMP_LOW; + btcoex->duty_cycle = ATH_BTCOEX_DEF_DUTY_CYCLE; + } + + ath_mci_update_scheme(sc); +} + +static void ath_mci_process_status(struct ath_softc *sc, + struct ath_mci_profile_status *status) +{ + struct ath_common *common = ath9k_hw_common(sc->sc_ah); + struct ath_btcoex *btcoex = &sc->btcoex; + struct ath_mci_profile *mci = &btcoex->mci; + struct ath_mci_profile_info info; + int i = 0, old_num_mgmt = mci->num_mgmt; + + /* Link status type are not handled */ + if (status->is_link) { + ath_dbg(common, MCI, "Skip link type status update\n"); + return; + } + + memset(&info, 0, sizeof(struct ath_mci_profile_info)); + + info.conn_handle = status->conn_handle; + if (ath_mci_find_profile(mci, &info)) { + ath_dbg(common, MCI, + "Skip non link state update for existing profile %d\n", + status->conn_handle); + return; + } + if (status->conn_handle >= ATH_MCI_MAX_PROFILE) { + ath_dbg(common, MCI, "Ignore too many non-link update\n"); + return; + } + if (status->is_critical) + __set_bit(status->conn_handle, mci->status); + else + __clear_bit(status->conn_handle, mci->status); + + mci->num_mgmt = 0; + do { + if (test_bit(i, mci->status)) + mci->num_mgmt++; + } while (++i < ATH_MCI_MAX_PROFILE); + + if (old_num_mgmt != mci->num_mgmt) + ath_mci_update_scheme(sc); +} + +static void ath_mci_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload) +{ + struct ath_hw *ah = sc->sc_ah; + struct ath_mci_profile_info profile_info; + struct ath_mci_profile_status profile_status; + struct ath_common *common = ath9k_hw_common(sc->sc_ah); + u32 version; + u8 major; + u8 minor; + u32 seq_num; + + switch (opcode) { + + case MCI_GPM_COEX_VERSION_QUERY: + ath_dbg(common, MCI, "MCI Recv GPM COEX Version Query\n"); + version = ar9003_mci_state(ah, + MCI_STATE_SEND_WLAN_COEX_VERSION, NULL); + break; + + case MCI_GPM_COEX_VERSION_RESPONSE: + ath_dbg(common, MCI, "MCI Recv GPM COEX Version Response\n"); + major = *(rx_payload + MCI_GPM_COEX_B_MAJOR_VERSION); + minor = *(rx_payload + MCI_GPM_COEX_B_MINOR_VERSION); + ath_dbg(common, MCI, "MCI BT Coex version: %d.%d\n", + major, minor); + version = (major << 8) + minor; + version = ar9003_mci_state(ah, + MCI_STATE_SET_BT_COEX_VERSION, &version); + break; + + case MCI_GPM_COEX_STATUS_QUERY: + ath_dbg(common, MCI, + "MCI Recv GPM COEX Status Query = 0x%02x\n", + *(rx_payload + MCI_GPM_COEX_B_WLAN_BITMAP)); + ar9003_mci_state(ah, + MCI_STATE_SEND_WLAN_CHANNELS, NULL); + break; + + case MCI_GPM_COEX_BT_PROFILE_INFO: + ath_dbg(common, MCI, "MCI Recv GPM Coex BT profile info\n"); + memcpy(&profile_info, + (rx_payload + MCI_GPM_COEX_B_PROFILE_TYPE), 10); + + if ((profile_info.type == MCI_GPM_COEX_PROFILE_UNKNOWN) + || (profile_info.type >= + MCI_GPM_COEX_PROFILE_MAX)) { + + ath_dbg(common, MCI, + "illegal profile type = %d, state = %d\n", + profile_info.type, + profile_info.start); + break; + } + + ath_mci_process_profile(sc, &profile_info); + break; + + case MCI_GPM_COEX_BT_STATUS_UPDATE: + profile_status.is_link = *(rx_payload + + MCI_GPM_COEX_B_STATUS_TYPE); + profile_status.conn_handle = *(rx_payload + + MCI_GPM_COEX_B_STATUS_LINKID); + profile_status.is_critical = *(rx_payload + + MCI_GPM_COEX_B_STATUS_STATE); + + seq_num = *((u32 *)(rx_payload + 12)); + ath_dbg(common, MCI, + "MCI Recv GPM COEX BT_Status_Update: is_link=%d, linkId=%d, state=%d, SEQ=%d\n", + profile_status.is_link, profile_status.conn_handle, + profile_status.is_critical, seq_num); + + ath_mci_process_status(sc, &profile_status); + break; + + default: + ath_dbg(common, MCI, "MCI Unknown GPM COEX message = 0x%02x\n", + opcode); + break; + } +} + +static int ath_mci_buf_alloc(struct ath_softc *sc, struct ath_mci_buf *buf) +{ + int error = 0; + + buf->bf_addr = dma_alloc_coherent(sc->dev, buf->bf_len, + &buf->bf_paddr, GFP_KERNEL); + + if (buf->bf_addr == NULL) { + error = -ENOMEM; + goto fail; + } + + return 0; + +fail: + memset(buf, 0, sizeof(*buf)); + return error; +} + +static void ath_mci_buf_free(struct ath_softc *sc, struct ath_mci_buf *buf) +{ + if (buf->bf_addr) { + dma_free_coherent(sc->dev, buf->bf_len, buf->bf_addr, + buf->bf_paddr); + memset(buf, 0, sizeof(*buf)); + } +} + +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; + int error = 0; + + if (!ATH9K_HW_CAP_MCI) + return 0; + + mci->sched_buf.bf_len = ATH_MCI_SCHED_BUF_SIZE + ATH_MCI_GPM_BUF_SIZE; + + if (ath_mci_buf_alloc(sc, &mci->sched_buf)) { + ath_dbg(common, FATAL, "MCI buffer alloc failed\n"); + error = -ENOMEM; + goto fail; + } + + mci->sched_buf.bf_len = ATH_MCI_SCHED_BUF_SIZE; + + memset(mci->sched_buf.bf_addr, MCI_GPM_RSVD_PATTERN, + mci->sched_buf.bf_len); + + mci->gpm_buf.bf_len = ATH_MCI_GPM_BUF_SIZE; + 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; + + /* initialize the buffer */ + memset(mci->gpm_buf.bf_addr, MCI_GPM_RSVD_PATTERN, mci->gpm_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); +fail: + return error; +} + +void ath_mci_cleanup(struct ath_softc *sc) +{ + struct ath_hw *ah = sc->sc_ah; + struct ath_mci_coex *mci = &sc->mci_coex; + + if (!ATH9K_HW_CAP_MCI) + return; + + /* + * both schedule and gpm buffers will be released + */ + ath_mci_buf_free(sc, &mci->sched_buf); + ar9003_mci_cleanup(ah); +} + +void ath_mci_intr(struct ath_softc *sc) +{ + struct ath_mci_coex *mci = &sc->mci_coex; + struct ath_hw *ah = sc->sc_ah; + struct ath_common *common = ath9k_hw_common(ah); + u32 mci_int, mci_int_rxmsg; + u32 offset, subtype, opcode; + u32 *pgpm; + u32 more_data = MCI_GPM_MORE; + bool skip_gpm = false; + + if (!ATH9K_HW_CAP_MCI) + return; + + ar9003_mci_get_interrupt(sc->sc_ah, &mci_int, &mci_int_rxmsg); + + if (ar9003_mci_state(ah, MCI_STATE_ENABLE, NULL) == 0) { + + ar9003_mci_state(sc->sc_ah, MCI_STATE_INIT_GPM_OFFSET, NULL); + ath_dbg(common, MCI, "MCI interrupt but MCI disabled\n"); + + ath_dbg(common, MCI, + "MCI interrupt: intr = 0x%x, intr_rxmsg = 0x%x\n", + mci_int, mci_int_rxmsg); + return; + } + + if (mci_int_rxmsg & AR_MCI_INTERRUPT_RX_MSG_REQ_WAKE) { + u32 payload[4] = { 0xffffffff, 0xffffffff, + 0xffffffff, 0xffffff00}; + + /* + * The following REMOTE_RESET and SYS_WAKING used to sent + * only when BT wake up. Now they are always sent, as a + * recovery method to reset BT MCI's RX alignment. + */ + ath_dbg(common, MCI, "MCI interrupt send REMOTE_RESET\n"); + + ar9003_mci_send_message(ah, MCI_REMOTE_RESET, 0, + payload, 16, true, false); + ath_dbg(common, MCI, "MCI interrupt send SYS_WAKING\n"); + ar9003_mci_send_message(ah, MCI_SYS_WAKING, 0, + NULL, 0, true, false); + + mci_int_rxmsg &= ~AR_MCI_INTERRUPT_RX_MSG_REQ_WAKE; + ar9003_mci_state(ah, MCI_STATE_RESET_REQ_WAKE, NULL); + + /* + * always do this for recovery and 2G/5G toggling and LNA_TRANS + */ + ath_dbg(common, MCI, "MCI Set BT state to AWAKE\n"); + ar9003_mci_state(ah, MCI_STATE_SET_BT_AWAKE, NULL); + } + + /* Processing SYS_WAKING/SYS_SLEEPING */ + if (mci_int_rxmsg & AR_MCI_INTERRUPT_RX_MSG_SYS_WAKING) { + mci_int_rxmsg &= ~AR_MCI_INTERRUPT_RX_MSG_SYS_WAKING; + + if (ar9003_mci_state(ah, MCI_STATE_BT, NULL) == MCI_BT_SLEEP) { + + if (ar9003_mci_state(ah, MCI_STATE_REMOTE_SLEEP, NULL) + == MCI_BT_SLEEP) + ath_dbg(common, MCI, + "MCI BT stays in sleep mode\n"); + else { + ath_dbg(common, MCI, + "MCI Set BT state to AWAKE\n"); + ar9003_mci_state(ah, + MCI_STATE_SET_BT_AWAKE, NULL); + } + } else + ath_dbg(common, MCI, "MCI BT stays in AWAKE mode\n"); + } + + if (mci_int_rxmsg & AR_MCI_INTERRUPT_RX_MSG_SYS_SLEEPING) { + + mci_int_rxmsg &= ~AR_MCI_INTERRUPT_RX_MSG_SYS_SLEEPING; + + if (ar9003_mci_state(ah, MCI_STATE_BT, NULL) == MCI_BT_AWAKE) { + + if (ar9003_mci_state(ah, MCI_STATE_REMOTE_SLEEP, NULL) + == MCI_BT_AWAKE) + ath_dbg(common, MCI, + "MCI BT stays in AWAKE mode\n"); + else { + ath_dbg(common, MCI, + "MCI SetBT state to SLEEP\n"); + ar9003_mci_state(ah, MCI_STATE_SET_BT_SLEEP, + NULL); + } + } else + ath_dbg(common, MCI, "MCI BT stays in SLEEP mode\n"); + } + + if ((mci_int & AR_MCI_INTERRUPT_RX_INVALID_HDR) || + (mci_int & AR_MCI_INTERRUPT_CONT_INFO_TIMEOUT)) { + + ath_dbg(common, MCI, "MCI RX broken, skip GPM msgs\n"); + ar9003_mci_state(ah, MCI_STATE_RECOVER_RX, NULL); + skip_gpm = true; + } + + if (mci_int_rxmsg & AR_MCI_INTERRUPT_RX_MSG_SCHD_INFO) { + + mci_int_rxmsg &= ~AR_MCI_INTERRUPT_RX_MSG_SCHD_INFO; + offset = ar9003_mci_state(ah, MCI_STATE_LAST_SCHD_MSG_OFFSET, + NULL); + } + + if (mci_int_rxmsg & AR_MCI_INTERRUPT_RX_MSG_GPM) { + + mci_int_rxmsg &= ~AR_MCI_INTERRUPT_RX_MSG_GPM; + + while (more_data == MCI_GPM_MORE) { + + pgpm = mci->gpm_buf.bf_addr; + offset = ar9003_mci_state(ah, + MCI_STATE_NEXT_GPM_OFFSET, &more_data); + + if (offset == MCI_GPM_INVALID) + break; + + pgpm += (offset >> 2); + + /* + * The first dword is timer. + * The real data starts from 2nd dword. + */ + + subtype = MCI_GPM_TYPE(pgpm); + opcode = MCI_GPM_OPCODE(pgpm); + + if (!skip_gpm) { + + if (MCI_GPM_IS_CAL_TYPE(subtype)) + ath_mci_cal_msg(sc, subtype, + (u8 *) pgpm); + else { + switch (subtype) { + case MCI_GPM_COEX_AGENT: + ath_mci_msg(sc, opcode, + (u8 *) pgpm); + break; + default: + break; + } + } + } + MCI_GPM_RECYCLE(pgpm); + } + } + + if (mci_int_rxmsg & AR_MCI_INTERRUPT_RX_HW_MSG_MASK) { + + if (mci_int_rxmsg & AR_MCI_INTERRUPT_RX_MSG_LNA_CONTROL) + mci_int_rxmsg &= ~AR_MCI_INTERRUPT_RX_MSG_LNA_CONTROL; + + if (mci_int_rxmsg & AR_MCI_INTERRUPT_RX_MSG_LNA_INFO) { + mci_int_rxmsg &= ~AR_MCI_INTERRUPT_RX_MSG_LNA_INFO; + ath_dbg(common, MCI, "MCI LNA_INFO\n"); + } + + if (mci_int_rxmsg & AR_MCI_INTERRUPT_RX_MSG_CONT_INFO) { + + int value_dbm = ar9003_mci_state(ah, + MCI_STATE_CONT_RSSI_POWER, NULL); + + mci_int_rxmsg &= ~AR_MCI_INTERRUPT_RX_MSG_CONT_INFO; + + if (ar9003_mci_state(ah, MCI_STATE_CONT_TXRX, NULL)) + ath_dbg(common, MCI, + "MCI CONT_INFO: (tx) pri = %d, pwr = %d dBm\n", + ar9003_mci_state(ah, + MCI_STATE_CONT_PRIORITY, NULL), + value_dbm); + else + ath_dbg(common, MCI, + "MCI CONT_INFO: (rx) pri = %d,pwr = %d dBm\n", + ar9003_mci_state(ah, + MCI_STATE_CONT_PRIORITY, NULL), + value_dbm); + } + + if (mci_int_rxmsg & AR_MCI_INTERRUPT_RX_MSG_CONT_NACK) { + mci_int_rxmsg &= ~AR_MCI_INTERRUPT_RX_MSG_CONT_NACK; + ath_dbg(common, MCI, "MCI CONT_NACK\n"); + } + + if (mci_int_rxmsg & AR_MCI_INTERRUPT_RX_MSG_CONT_RST) { + mci_int_rxmsg &= ~AR_MCI_INTERRUPT_RX_MSG_CONT_RST; + ath_dbg(common, MCI, "MCI CONT_RST\n"); + } + } + + if ((mci_int & AR_MCI_INTERRUPT_RX_INVALID_HDR) || + (mci_int & AR_MCI_INTERRUPT_CONT_INFO_TIMEOUT)) + mci_int &= ~(AR_MCI_INTERRUPT_RX_INVALID_HDR | + AR_MCI_INTERRUPT_CONT_INFO_TIMEOUT); + + if (mci_int_rxmsg & 0xfffffffe) + ath_dbg(common, MCI, "MCI not processed mci_int_rxmsg = 0x%x\n", + mci_int_rxmsg); +} |