diff options
author | Ingo Molnar <mingo@kernel.org> | 2012-04-14 13:18:27 +0200 |
---|---|---|
committer | Ingo Molnar <mingo@kernel.org> | 2012-04-14 13:19:04 +0200 |
commit | 6ac1ef482d7ae0c690f1640bf6eb818ff9a2d91e (patch) | |
tree | 021cc9f6b477146fcebe6f3be4752abfa2ba18a9 /drivers/net/wireless/ath/ath9k/mci.c | |
parent | 682968e0c425c60f0dde37977e5beb2b12ddc4cc (diff) | |
parent | a385ec4f11bdcf81af094c03e2444ee9b7fad2e5 (diff) |
Merge branch 'perf/core' into perf/uprobes
Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/mci.c')
-rw-r--r-- | drivers/net/wireless/ath/ath9k/mci.c | 290 |
1 files changed, 81 insertions, 209 deletions
diff --git a/drivers/net/wireless/ath/ath9k/mci.c b/drivers/net/wireless/ath/ath9k/mci.c index 05c23ea4c63..29fe52d6997 100644 --- a/drivers/net/wireless/ath/ath9k/mci.c +++ b/drivers/net/wireless/ath/ath9k/mci.c @@ -42,24 +42,18 @@ static bool ath_mci_add_profile(struct ath_common *common, 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"); + (info->type == MCI_GPM_COEX_PROFILE_VOICE)) 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"); + (info->type != MCI_GPM_COEX_PROFILE_VOICE)) return false; - } entry = ath_mci_find_profile(mci, info); - if (entry) + if (entry) { memcpy(entry, info, 10); - else { + } else { entry = kzalloc(sizeof(*entry), GFP_KERNEL); if (!entry) return false; @@ -68,6 +62,7 @@ static bool ath_mci_add_profile(struct ath_common *common, INC_PROF(mci, info); list_add_tail(&info->list, &mci->info); } + return true; } @@ -79,10 +74,9 @@ static void ath_mci_del_profile(struct ath_common *common, entry = ath_mci_find_profile(mci, info); - if (!entry) { - ath_dbg(common, MCI, "Profile to be deleted not found\n"); + if (!entry) return; - } + DEC_PROF(mci, entry); list_del(&entry->list); kfree(entry); @@ -177,13 +171,12 @@ static void ath_mci_update_scheme(struct ath_softc *sc) btcoex->btcoex_period *= 1000; btcoex->btcoex_no_stomp = btcoex->btcoex_period * - (100 - btcoex->duty_cycle) / 100; + (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; @@ -192,42 +185,24 @@ static void ath_mci_cal_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload) 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", + } else { + ath_dbg(common, MCI, "MCI State mismatch: %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"); - + ar9003_mci_state(ah, MCI_STATE_BT, NULL); 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"); + ath_dbg(common, MCI, "Unknown GPM CAL message\n"); break; } } @@ -247,6 +222,7 @@ static void ath_mci_process_profile(struct ath_softc *sc, 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)]; @@ -262,31 +238,24 @@ static void ath_mci_process_profile(struct ath_softc *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"); + if (status->is_link) 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); + if (ath_mci_find_profile(mci, &info)) return; - } - if (status->conn_handle >= ATH_MCI_MAX_PROFILE) { - ath_dbg(common, MCI, "Ignore too many non-link update\n"); + + if (status->conn_handle >= ATH_MCI_MAX_PROFILE) return; - } + if (status->is_critical) __set_bit(status->conn_handle, mci->status); else @@ -314,43 +283,28 @@ static void ath_mci_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload) 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); + 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); + 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); + 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)) { - + 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", + "Illegal profile type = %d, state = %d\n", profile_info.type, profile_info.start); break; @@ -358,7 +312,6 @@ static void ath_mci_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload) 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); @@ -369,98 +322,66 @@ static void ath_mci_msg(struct ath_softc *sc, u8 opcode, u8 *rx_payload) 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", + "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); + ath_dbg(common, 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; + struct ath_mci_buf *buf = &mci->sched_buf; - mci->sched_buf.bf_len = ATH_MCI_SCHED_BUF_SIZE + ATH_MCI_GPM_BUF_SIZE; + buf->bf_addr = dma_alloc_coherent(sc->dev, + ATH_MCI_SCHED_BUF_SIZE + ATH_MCI_GPM_BUF_SIZE, + &buf->bf_paddr, GFP_KERNEL); - if (ath_mci_buf_alloc(sc, &mci->sched_buf)) { + if (buf->bf_addr == NULL) { ath_dbg(common, FATAL, "MCI buffer alloc failed\n"); - error = -ENOMEM; - goto fail; + return -ENOMEM; } - mci->sched_buf.bf_len = ATH_MCI_SCHED_BUF_SIZE; + memset(buf->bf_addr, MCI_GPM_RSVD_PATTERN, + ATH_MCI_SCHED_BUF_SIZE + ATH_MCI_GPM_BUF_SIZE); - memset(mci->sched_buf.bf_addr, MCI_GPM_RSVD_PATTERN, - mci->sched_buf.bf_len); + mci->sched_buf.bf_len = ATH_MCI_SCHED_BUF_SIZE; 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_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; + + ath_dbg(common, MCI, "MCI Initialized\n"); + + return 0; } void ath_mci_cleanup(struct ath_softc *sc) { + struct ath_common *common = ath9k_hw_common(sc->sc_ah); struct ath_hw *ah = sc->sc_ah; struct ath_mci_coex *mci = &sc->mci_coex; + struct ath_mci_buf *buf = &mci->sched_buf; - if (!ATH9K_HW_CAP_MCI) - return; + if (buf->bf_addr) + dma_free_coherent(sc->dev, + ATH_MCI_SCHED_BUF_SIZE + ATH_MCI_GPM_BUF_SIZE, + buf->bf_addr, buf->bf_paddr); - /* - * both schedule and gpm buffers will be released - */ - ath_mci_buf_free(sc, &mci->sched_buf); ar9003_mci_cleanup(ah); + + ath_dbg(common, MCI, "MCI De-Initialized\n"); } void ath_mci_intr(struct ath_softc *sc) @@ -474,19 +395,10 @@ void ath_mci_intr(struct ath_softc *sc) 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); + ar9003_mci_state(ah, MCI_STATE_INIT_GPM_OFFSET, NULL); return; } @@ -499,11 +411,8 @@ void ath_mci_intr(struct ath_softc *sc) * 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); @@ -513,74 +422,51 @@ void ath_mci_intr(struct ath_softc *sc) /* * 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 (ar9003_mci_state(ah, MCI_STATE_REMOTE_SLEEP, NULL) != + MCI_BT_SLEEP) + ar9003_mci_state(ah, MCI_STATE_SET_BT_AWAKE, + NULL); + } } 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"); + if (ar9003_mci_state(ah, MCI_STATE_REMOTE_SLEEP, NULL) != + MCI_BT_AWAKE) 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); + offset = ar9003_mci_state(ah, MCI_STATE_NEXT_GPM_OFFSET, + &more_data); if (offset == MCI_GPM_INVALID) break; @@ -591,44 +477,38 @@ void ath_mci_intr(struct ath_softc *sc) * 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; - } + if (skip_gpm) + goto recycle; + + 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; } } + recycle: 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) { + 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_STATE_CONT_RSSI_POWER, NULL); mci_int_rxmsg &= ~AR_MCI_INTERRUPT_RX_MSG_CONT_INFO; @@ -636,33 +516,25 @@ void ath_mci_intr(struct ath_softc *sc) ath_dbg(common, MCI, "MCI CONT_INFO: (tx) pri = %d, pwr = %d dBm\n", ar9003_mci_state(ah, - MCI_STATE_CONT_PRIORITY, NULL), + 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), + MCI_STATE_CONT_PRIORITY, NULL), value_dbm); } - if (mci_int_rxmsg & AR_MCI_INTERRUPT_RX_MSG_CONT_NACK) { + 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) { + 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); } |