| /*- |
| * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting |
| * Copyright (c) 2004-2005 Atheros Communications, Inc. |
| * Copyright (c) 2006 Devicescape Software, Inc. |
| * Copyright (c) 2007 Jiri Slaby <jirislaby@gmail.com> |
| * Copyright (c) 2007 Luis R. Rodriguez <mcgrof@winlab.rutgers.edu> |
| * Copyright (c) 2010 Bruno Randolf <br1@einfach.org> |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer, |
| * without modification. |
| * 2. Redistributions in binary form must reproduce at minimum a disclaimer |
| * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any |
| * redistribution must be conditioned upon including a substantially |
| * similar Disclaimer requirement for further binary redistribution. |
| * 3. Neither the names of the above-listed copyright holders nor the names |
| * of any contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * Alternatively, this software may be distributed under the terms of the |
| * GNU General Public License ("GPL") version 2 as published by the Free |
| * Software Foundation. |
| * |
| * NO WARRANTY |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY |
| * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, |
| * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER |
| * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGES. |
| * |
| */ |
| |
| #include <asm/unaligned.h> |
| |
| #include "base.h" |
| #include "reg.h" |
| |
| extern int ath5k_modparam_nohwcrypt; |
| |
| /********************\ |
| * Mac80211 functions * |
| \********************/ |
| |
| static void |
| ath5k_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
| { |
| struct ath5k_softc *sc = hw->priv; |
| u16 qnum = skb_get_queue_mapping(skb); |
| |
| if (WARN_ON(qnum >= sc->ah->ah_capabilities.cap_queues.q_tx_num)) { |
| dev_kfree_skb_any(skb); |
| return; |
| } |
| |
| ath5k_tx_queue(hw, skb, &sc->txqs[qnum]); |
| } |
| |
| |
| static int |
| ath5k_start(struct ieee80211_hw *hw) |
| { |
| return ath5k_init_hw(hw->priv); |
| } |
| |
| |
| static void |
| ath5k_stop(struct ieee80211_hw *hw) |
| { |
| ath5k_stop_hw(hw->priv); |
| } |
| |
| |
| static int |
| ath5k_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) |
| { |
| struct ath5k_softc *sc = hw->priv; |
| int ret; |
| struct ath5k_vif *avf = (void *)vif->drv_priv; |
| |
| mutex_lock(&sc->lock); |
| |
| if ((vif->type == NL80211_IFTYPE_AP || |
| vif->type == NL80211_IFTYPE_ADHOC) |
| && (sc->num_ap_vifs + sc->num_adhoc_vifs) >= ATH_BCBUF) { |
| ret = -ELNRNG; |
| goto end; |
| } |
| |
| /* Don't allow other interfaces if one ad-hoc is configured. |
| * TODO: Fix the problems with ad-hoc and multiple other interfaces. |
| * We would need to operate the HW in ad-hoc mode to allow TSF updates |
| * for the IBSS, but this breaks with additional AP or STA interfaces |
| * at the moment. */ |
| if (sc->num_adhoc_vifs || |
| (sc->nvifs && vif->type == NL80211_IFTYPE_ADHOC)) { |
| ATH5K_ERR(sc, "Only one single ad-hoc interface is allowed.\n"); |
| ret = -ELNRNG; |
| goto end; |
| } |
| |
| switch (vif->type) { |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_ADHOC: |
| case NL80211_IFTYPE_MESH_POINT: |
| avf->opmode = vif->type; |
| break; |
| default: |
| ret = -EOPNOTSUPP; |
| goto end; |
| } |
| |
| sc->nvifs++; |
| ATH5K_DBG(sc, ATH5K_DEBUG_MODE, "add interface mode %d\n", avf->opmode); |
| |
| /* Assign the vap/adhoc to a beacon xmit slot. */ |
| if ((avf->opmode == NL80211_IFTYPE_AP) || |
| (avf->opmode == NL80211_IFTYPE_ADHOC) || |
| (avf->opmode == NL80211_IFTYPE_MESH_POINT)) { |
| int slot; |
| |
| WARN_ON(list_empty(&sc->bcbuf)); |
| avf->bbuf = list_first_entry(&sc->bcbuf, struct ath5k_buf, |
| list); |
| list_del(&avf->bbuf->list); |
| |
| avf->bslot = 0; |
| for (slot = 0; slot < ATH_BCBUF; slot++) { |
| if (!sc->bslot[slot]) { |
| avf->bslot = slot; |
| break; |
| } |
| } |
| BUG_ON(sc->bslot[avf->bslot] != NULL); |
| sc->bslot[avf->bslot] = vif; |
| if (avf->opmode == NL80211_IFTYPE_AP) |
| sc->num_ap_vifs++; |
| else if (avf->opmode == NL80211_IFTYPE_ADHOC) |
| sc->num_adhoc_vifs++; |
| } |
| |
| /* Any MAC address is fine, all others are included through the |
| * filter. |
| */ |
| memcpy(&sc->lladdr, vif->addr, ETH_ALEN); |
| ath5k_hw_set_lladdr(sc->ah, vif->addr); |
| |
| memcpy(&avf->lladdr, vif->addr, ETH_ALEN); |
| |
| ath5k_update_bssid_mask_and_opmode(sc, vif); |
| ret = 0; |
| end: |
| mutex_unlock(&sc->lock); |
| return ret; |
| } |
| |
| |
| static void |
| ath5k_remove_interface(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif) |
| { |
| struct ath5k_softc *sc = hw->priv; |
| struct ath5k_vif *avf = (void *)vif->drv_priv; |
| unsigned int i; |
| |
| mutex_lock(&sc->lock); |
| sc->nvifs--; |
| |
| if (avf->bbuf) { |
| ath5k_txbuf_free_skb(sc, avf->bbuf); |
| list_add_tail(&avf->bbuf->list, &sc->bcbuf); |
| for (i = 0; i < ATH_BCBUF; i++) { |
| if (sc->bslot[i] == vif) { |
| sc->bslot[i] = NULL; |
| break; |
| } |
| } |
| avf->bbuf = NULL; |
| } |
| if (avf->opmode == NL80211_IFTYPE_AP) |
| sc->num_ap_vifs--; |
| else if (avf->opmode == NL80211_IFTYPE_ADHOC) |
| sc->num_adhoc_vifs--; |
| |
| ath5k_update_bssid_mask_and_opmode(sc, NULL); |
| mutex_unlock(&sc->lock); |
| } |
| |
| |
| /* |
| * TODO: Phy disable/diversity etc |
| */ |
| static int |
| ath5k_config(struct ieee80211_hw *hw, u32 changed) |
| { |
| struct ath5k_softc *sc = hw->priv; |
| struct ath5k_hw *ah = sc->ah; |
| struct ieee80211_conf *conf = &hw->conf; |
| int ret = 0; |
| int i; |
| |
| mutex_lock(&sc->lock); |
| |
| if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { |
| ret = ath5k_chan_set(sc, conf->channel); |
| if (ret < 0) |
| goto unlock; |
| } |
| |
| if ((changed & IEEE80211_CONF_CHANGE_POWER) && |
| (sc->power_level != conf->power_level)) { |
| sc->power_level = conf->power_level; |
| |
| /* Half dB steps */ |
| ath5k_hw_set_txpower_limit(ah, (conf->power_level * 2)); |
| } |
| |
| if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) { |
| ah->ah_retry_long = conf->long_frame_max_tx_count; |
| ah->ah_retry_short = conf->short_frame_max_tx_count; |
| |
| for (i = 0; i < ah->ah_capabilities.cap_queues.q_tx_num; i++) |
| ath5k_hw_set_tx_retry_limits(ah, i); |
| } |
| |
| /* TODO: |
| * 1) Move this on config_interface and handle each case |
| * separately eg. when we have only one STA vif, use |
| * AR5K_ANTMODE_SINGLE_AP |
| * |
| * 2) Allow the user to change antenna mode eg. when only |
| * one antenna is present |
| * |
| * 3) Allow the user to set default/tx antenna when possible |
| * |
| * 4) Default mode should handle 90% of the cases, together |
| * with fixed a/b and single AP modes we should be able to |
| * handle 99%. Sectored modes are extreme cases and i still |
| * haven't found a usage for them. If we decide to support them, |
| * then we must allow the user to set how many tx antennas we |
| * have available |
| */ |
| ath5k_hw_set_antenna_mode(ah, ah->ah_ant_mode); |
| |
| unlock: |
| mutex_unlock(&sc->lock); |
| return ret; |
| } |
| |
| |
| static void |
| ath5k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
| struct ieee80211_bss_conf *bss_conf, u32 changes) |
| { |
| struct ath5k_vif *avf = (void *)vif->drv_priv; |
| struct ath5k_softc *sc = hw->priv; |
| struct ath5k_hw *ah = sc->ah; |
| struct ath_common *common = ath5k_hw_common(ah); |
| unsigned long flags; |
| |
| mutex_lock(&sc->lock); |
| |
| if (changes & BSS_CHANGED_BSSID) { |
| /* Cache for later use during resets */ |
| memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN); |
| common->curaid = 0; |
| ath5k_hw_set_bssid(ah); |
| mmiowb(); |
| } |
| |
| if (changes & BSS_CHANGED_BEACON_INT) |
| sc->bintval = bss_conf->beacon_int; |
| |
| if (changes & BSS_CHANGED_ERP_SLOT) { |
| int slot_time; |
| |
| ah->ah_short_slot = bss_conf->use_short_slot; |
| slot_time = ath5k_hw_get_default_slottime(ah) + |
| 3 * ah->ah_coverage_class; |
| ath5k_hw_set_ifs_intervals(ah, slot_time); |
| } |
| |
| if (changes & BSS_CHANGED_ASSOC) { |
| avf->assoc = bss_conf->assoc; |
| if (bss_conf->assoc) |
| sc->assoc = bss_conf->assoc; |
| else |
| sc->assoc = ath_any_vif_assoc(sc); |
| |
| if (sc->opmode == NL80211_IFTYPE_STATION) |
| set_beacon_filter(hw, sc->assoc); |
| ath5k_hw_set_ledstate(sc->ah, sc->assoc ? |
| AR5K_LED_ASSOC : AR5K_LED_INIT); |
| if (bss_conf->assoc) { |
| ATH5K_DBG(sc, ATH5K_DEBUG_ANY, |
| "Bss Info ASSOC %d, bssid: %pM\n", |
| bss_conf->aid, common->curbssid); |
| common->curaid = bss_conf->aid; |
| ath5k_hw_set_bssid(ah); |
| /* Once ANI is available you would start it here */ |
| } |
| } |
| |
| if (changes & BSS_CHANGED_BEACON) { |
| spin_lock_irqsave(&sc->block, flags); |
| ath5k_beacon_update(hw, vif); |
| spin_unlock_irqrestore(&sc->block, flags); |
| } |
| |
| if (changes & BSS_CHANGED_BEACON_ENABLED) |
| sc->enable_beacon = bss_conf->enable_beacon; |
| |
| if (changes & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_ENABLED | |
| BSS_CHANGED_BEACON_INT)) |
| ath5k_beacon_config(sc); |
| |
| mutex_unlock(&sc->lock); |
| } |
| |
| |
| static u64 |
| ath5k_prepare_multicast(struct ieee80211_hw *hw, |
| struct netdev_hw_addr_list *mc_list) |
| { |
| u32 mfilt[2], val; |
| u8 pos; |
| struct netdev_hw_addr *ha; |
| |
| mfilt[0] = 0; |
| mfilt[1] = 1; |
| |
| netdev_hw_addr_list_for_each(ha, mc_list) { |
| /* calculate XOR of eight 6-bit values */ |
| val = get_unaligned_le32(ha->addr + 0); |
| pos = (val >> 18) ^ (val >> 12) ^ (val >> 6) ^ val; |
| val = get_unaligned_le32(ha->addr + 3); |
| pos ^= (val >> 18) ^ (val >> 12) ^ (val >> 6) ^ val; |
| pos &= 0x3f; |
| mfilt[pos / 32] |= (1 << (pos % 32)); |
| /* XXX: we might be able to just do this instead, |
| * but not sure, needs testing, if we do use this we'd |
| * neet to inform below to not reset the mcast */ |
| /* ath5k_hw_set_mcast_filterindex(ah, |
| * ha->addr[5]); */ |
| } |
| |
| return ((u64)(mfilt[1]) << 32) | mfilt[0]; |
| } |
| |
| |
| /* |
| * o always accept unicast, broadcast, and multicast traffic |
| * o multicast traffic for all BSSIDs will be enabled if mac80211 |
| * says it should be |
| * o maintain current state of phy ofdm or phy cck error reception. |
| * If the hardware detects any of these type of errors then |
| * ath5k_hw_get_rx_filter() will pass to us the respective |
| * hardware filters to be able to receive these type of frames. |
| * o probe request frames are accepted only when operating in |
| * hostap, adhoc, or monitor modes |
| * o enable promiscuous mode according to the interface state |
| * o accept beacons: |
| * - when operating in adhoc mode so the 802.11 layer creates |
| * node table entries for peers, |
| * - when operating in station mode for collecting rssi data when |
| * the station is otherwise quiet, or |
| * - when scanning |
| */ |
| static void |
| ath5k_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags, |
| unsigned int *new_flags, u64 multicast) |
| { |
| #define SUPPORTED_FIF_FLAGS \ |
| (FIF_PROMISC_IN_BSS | FIF_ALLMULTI | FIF_FCSFAIL | \ |
| FIF_PLCPFAIL | FIF_CONTROL | FIF_OTHER_BSS | \ |
| FIF_BCN_PRBRESP_PROMISC) |
| |
| struct ath5k_softc *sc = hw->priv; |
| struct ath5k_hw *ah = sc->ah; |
| u32 mfilt[2], rfilt; |
| struct ath5k_vif_iter_data iter_data; /* to count STA interfaces */ |
| |
| mutex_lock(&sc->lock); |
| |
| mfilt[0] = multicast; |
| mfilt[1] = multicast >> 32; |
| |
| /* Only deal with supported flags */ |
| changed_flags &= SUPPORTED_FIF_FLAGS; |
| *new_flags &= SUPPORTED_FIF_FLAGS; |
| |
| /* If HW detects any phy or radar errors, leave those filters on. |
| * Also, always enable Unicast, Broadcasts and Multicast |
| * XXX: move unicast, bssid broadcasts and multicast to mac80211 */ |
| rfilt = (ath5k_hw_get_rx_filter(ah) & (AR5K_RX_FILTER_PHYERR)) | |
| (AR5K_RX_FILTER_UCAST | AR5K_RX_FILTER_BCAST | |
| AR5K_RX_FILTER_MCAST); |
| |
| if (changed_flags & (FIF_PROMISC_IN_BSS | FIF_OTHER_BSS)) { |
| if (*new_flags & FIF_PROMISC_IN_BSS) |
| __set_bit(ATH_STAT_PROMISC, sc->status); |
| else |
| __clear_bit(ATH_STAT_PROMISC, sc->status); |
| } |
| |
| if (test_bit(ATH_STAT_PROMISC, sc->status)) |
| rfilt |= AR5K_RX_FILTER_PROM; |
| |
| /* Note, AR5K_RX_FILTER_MCAST is already enabled */ |
| if (*new_flags & FIF_ALLMULTI) { |
| mfilt[0] = ~0; |
| mfilt[1] = ~0; |
| } |
| |
| /* This is the best we can do */ |
| if (*new_flags & (FIF_FCSFAIL | FIF_PLCPFAIL)) |
| rfilt |= AR5K_RX_FILTER_PHYERR; |
| |
| /* FIF_BCN_PRBRESP_PROMISC really means to enable beacons |
| * and probes for any BSSID */ |
| if ((*new_flags & FIF_BCN_PRBRESP_PROMISC) || (sc->nvifs > 1)) |
| rfilt |= AR5K_RX_FILTER_BEACON; |
| |
| /* FIF_CONTROL doc says that if FIF_PROMISC_IN_BSS is not |
| * set we should only pass on control frames for this |
| * station. This needs testing. I believe right now this |
| * enables *all* control frames, which is OK.. but |
| * but we should see if we can improve on granularity */ |
| if (*new_flags & FIF_CONTROL) |
| rfilt |= AR5K_RX_FILTER_CONTROL; |
| |
| /* Additional settings per mode -- this is per ath5k */ |
| |
| /* XXX move these to mac80211, and add a beacon IFF flag to mac80211 */ |
| |
| switch (sc->opmode) { |
| case NL80211_IFTYPE_MESH_POINT: |
| rfilt |= AR5K_RX_FILTER_CONTROL | |
| AR5K_RX_FILTER_BEACON | |
| AR5K_RX_FILTER_PROBEREQ | |
| AR5K_RX_FILTER_PROM; |
| break; |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_ADHOC: |
| rfilt |= AR5K_RX_FILTER_PROBEREQ | |
| AR5K_RX_FILTER_BEACON; |
| break; |
| case NL80211_IFTYPE_STATION: |
| if (sc->assoc) |
| rfilt |= AR5K_RX_FILTER_BEACON; |
| default: |
| break; |
| } |
| |
| iter_data.hw_macaddr = NULL; |
| iter_data.n_stas = 0; |
| iter_data.need_set_hw_addr = false; |
| ieee80211_iterate_active_interfaces_atomic(sc->hw, ath5k_vif_iter, |
| &iter_data); |
| |
| /* Set up RX Filter */ |
| if (iter_data.n_stas > 1) { |
| /* If you have multiple STA interfaces connected to |
| * different APs, ARPs are not received (most of the time?) |
| * Enabling PROMISC appears to fix that probem. |
| */ |
| rfilt |= AR5K_RX_FILTER_PROM; |
| } |
| |
| /* Set filters */ |
| ath5k_hw_set_rx_filter(ah, rfilt); |
| |
| /* Set multicast bits */ |
| ath5k_hw_set_mcast_filter(ah, mfilt[0], mfilt[1]); |
| /* Set the cached hw filter flags, this will later actually |
| * be set in HW */ |
| sc->filter_flags = rfilt; |
| |
| mutex_unlock(&sc->lock); |
| } |
| |
| |
| static int |
| ath5k_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
| struct ieee80211_vif *vif, struct ieee80211_sta *sta, |
| struct ieee80211_key_conf *key) |
| { |
| struct ath5k_softc *sc = hw->priv; |
| struct ath5k_hw *ah = sc->ah; |
| struct ath_common *common = ath5k_hw_common(ah); |
| int ret = 0; |
| |
| if (ath5k_modparam_nohwcrypt) |
| return -EOPNOTSUPP; |
| |
| switch (key->cipher) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_WEP104: |
| case WLAN_CIPHER_SUITE_TKIP: |
| break; |
| case WLAN_CIPHER_SUITE_CCMP: |
| if (common->crypt_caps & ATH_CRYPT_CAP_CIPHER_AESCCM) |
| break; |
| return -EOPNOTSUPP; |
| default: |
| WARN_ON(1); |
| return -EINVAL; |
| } |
| |
| mutex_lock(&sc->lock); |
| |
| switch (cmd) { |
| case SET_KEY: |
| ret = ath_key_config(common, vif, sta, key); |
| if (ret >= 0) { |
| key->hw_key_idx = ret; |
| /* push IV and Michael MIC generation to stack */ |
| key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; |
| if (key->cipher == WLAN_CIPHER_SUITE_TKIP) |
| key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; |
| if (key->cipher == WLAN_CIPHER_SUITE_CCMP) |
| key->flags |= IEEE80211_KEY_FLAG_SW_MGMT; |
| ret = 0; |
| } |
| break; |
| case DISABLE_KEY: |
| ath_key_delete(common, key); |
| break; |
| default: |
| ret = -EINVAL; |
| } |
| |
| mmiowb(); |
| mutex_unlock(&sc->lock); |
| return ret; |
| } |
| |
| |
| static void |
| ath5k_sw_scan_start(struct ieee80211_hw *hw) |
| { |
| struct ath5k_softc *sc = hw->priv; |
| if (!sc->assoc) |
| ath5k_hw_set_ledstate(sc->ah, AR5K_LED_SCAN); |
| } |
| |
| |
| static void |
| ath5k_sw_scan_complete(struct ieee80211_hw *hw) |
| { |
| struct ath5k_softc *sc = hw->priv; |
| ath5k_hw_set_ledstate(sc->ah, sc->assoc ? |
| AR5K_LED_ASSOC : AR5K_LED_INIT); |
| } |
| |
| |
| static int |
| ath5k_get_stats(struct ieee80211_hw *hw, |
| struct ieee80211_low_level_stats *stats) |
| { |
| struct ath5k_softc *sc = hw->priv; |
| |
| /* Force update */ |
| ath5k_hw_update_mib_counters(sc->ah); |
| |
| stats->dot11ACKFailureCount = sc->stats.ack_fail; |
| stats->dot11RTSFailureCount = sc->stats.rts_fail; |
| stats->dot11RTSSuccessCount = sc->stats.rts_ok; |
| stats->dot11FCSErrorCount = sc->stats.fcs_error; |
| |
| return 0; |
| } |
| |
| |
| static int |
| ath5k_conf_tx(struct ieee80211_hw *hw, u16 queue, |
| const struct ieee80211_tx_queue_params *params) |
| { |
| struct ath5k_softc *sc = hw->priv; |
| struct ath5k_hw *ah = sc->ah; |
| struct ath5k_txq_info qi; |
| int ret = 0; |
| |
| if (queue >= ah->ah_capabilities.cap_queues.q_tx_num) |
| return 0; |
| |
| mutex_lock(&sc->lock); |
| |
| ath5k_hw_get_tx_queueprops(ah, queue, &qi); |
| |
| qi.tqi_aifs = params->aifs; |
| qi.tqi_cw_min = params->cw_min; |
| qi.tqi_cw_max = params->cw_max; |
| qi.tqi_burst_time = params->txop; |
| |
| ATH5K_DBG(sc, ATH5K_DEBUG_ANY, |
| "Configure tx [queue %d], " |
| "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n", |
| queue, params->aifs, params->cw_min, |
| params->cw_max, params->txop); |
| |
| if (ath5k_hw_set_tx_queueprops(ah, queue, &qi)) { |
| ATH5K_ERR(sc, |
| "Unable to update hardware queue %u!\n", queue); |
| ret = -EIO; |
| } else |
| ath5k_hw_reset_tx_queue(ah, queue); |
| |
| mutex_unlock(&sc->lock); |
| |
| return ret; |
| } |
| |
| |
| static u64 |
| ath5k_get_tsf(struct ieee80211_hw *hw) |
| { |
| struct ath5k_softc *sc = hw->priv; |
| |
| return ath5k_hw_get_tsf64(sc->ah); |
| } |
| |
| |
| static void |
| ath5k_set_tsf(struct ieee80211_hw *hw, u64 tsf) |
| { |
| struct ath5k_softc *sc = hw->priv; |
| |
| ath5k_hw_set_tsf64(sc->ah, tsf); |
| } |
| |
| |
| static void |
| ath5k_reset_tsf(struct ieee80211_hw *hw) |
| { |
| struct ath5k_softc *sc = hw->priv; |
| |
| /* |
| * in IBSS mode we need to update the beacon timers too. |
| * this will also reset the TSF if we call it with 0 |
| */ |
| if (sc->opmode == NL80211_IFTYPE_ADHOC) |
| ath5k_beacon_update_timers(sc, 0); |
| else |
| ath5k_hw_reset_tsf(sc->ah); |
| } |
| |
| |
| static int |
| ath5k_get_survey(struct ieee80211_hw *hw, int idx, struct survey_info *survey) |
| { |
| struct ath5k_softc *sc = hw->priv; |
| struct ieee80211_conf *conf = &hw->conf; |
| struct ath_common *common = ath5k_hw_common(sc->ah); |
| struct ath_cycle_counters *cc = &common->cc_survey; |
| unsigned int div = common->clockrate * 1000; |
| |
| if (idx != 0) |
| return -ENOENT; |
| |
| spin_lock_bh(&common->cc_lock); |
| ath_hw_cycle_counters_update(common); |
| if (cc->cycles > 0) { |
| sc->survey.channel_time += cc->cycles / div; |
| sc->survey.channel_time_busy += cc->rx_busy / div; |
| sc->survey.channel_time_rx += cc->rx_frame / div; |
| sc->survey.channel_time_tx += cc->tx_frame / div; |
| } |
| memset(cc, 0, sizeof(*cc)); |
| spin_unlock_bh(&common->cc_lock); |
| |
| memcpy(survey, &sc->survey, sizeof(*survey)); |
| |
| survey->channel = conf->channel; |
| survey->noise = sc->ah->ah_noise_floor; |
| survey->filled = SURVEY_INFO_NOISE_DBM | |
| SURVEY_INFO_CHANNEL_TIME | |
| SURVEY_INFO_CHANNEL_TIME_BUSY | |
| SURVEY_INFO_CHANNEL_TIME_RX | |
| SURVEY_INFO_CHANNEL_TIME_TX; |
| |
| return 0; |
| } |
| |
| |
| /** |
| * ath5k_set_coverage_class - Set IEEE 802.11 coverage class |
| * |
| * @hw: struct ieee80211_hw pointer |
| * @coverage_class: IEEE 802.11 coverage class number |
| * |
| * Mac80211 callback. Sets slot time, ACK timeout and CTS timeout for given |
| * coverage class. The values are persistent, they are restored after device |
| * reset. |
| */ |
| static void |
| ath5k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class) |
| { |
| struct ath5k_softc *sc = hw->priv; |
| |
| mutex_lock(&sc->lock); |
| ath5k_hw_set_coverage_class(sc->ah, coverage_class); |
| mutex_unlock(&sc->lock); |
| } |
| |
| |
| static int |
| ath5k_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant) |
| { |
| struct ath5k_softc *sc = hw->priv; |
| |
| if (tx_ant == 1 && rx_ant == 1) |
| ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_A); |
| else if (tx_ant == 2 && rx_ant == 2) |
| ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_FIXED_B); |
| else if ((tx_ant & 3) == 3 && (rx_ant & 3) == 3) |
| ath5k_hw_set_antenna_mode(sc->ah, AR5K_ANTMODE_DEFAULT); |
| else |
| return -EINVAL; |
| return 0; |
| } |
| |
| |
| static int |
| ath5k_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant) |
| { |
| struct ath5k_softc *sc = hw->priv; |
| |
| switch (sc->ah->ah_ant_mode) { |
| case AR5K_ANTMODE_FIXED_A: |
| *tx_ant = 1; *rx_ant = 1; break; |
| case AR5K_ANTMODE_FIXED_B: |
| *tx_ant = 2; *rx_ant = 2; break; |
| case AR5K_ANTMODE_DEFAULT: |
| *tx_ant = 3; *rx_ant = 3; break; |
| } |
| return 0; |
| } |
| |
| |
| static void ath5k_get_ringparam(struct ieee80211_hw *hw, |
| u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max) |
| { |
| struct ath5k_softc *sc = hw->priv; |
| |
| *tx = sc->txqs[AR5K_TX_QUEUE_ID_DATA_MIN].txq_max; |
| |
| *tx_max = ATH5K_TXQ_LEN_MAX; |
| *rx = *rx_max = ATH_RXBUF; |
| } |
| |
| |
| static int ath5k_set_ringparam(struct ieee80211_hw *hw, u32 tx, u32 rx) |
| { |
| struct ath5k_softc *sc = hw->priv; |
| u16 qnum; |
| |
| /* only support setting tx ring size for now */ |
| if (rx != ATH_RXBUF) |
| return -EINVAL; |
| |
| /* restrict tx ring size min/max */ |
| if (!tx || tx > ATH5K_TXQ_LEN_MAX) |
| return -EINVAL; |
| |
| for (qnum = 0; qnum < ARRAY_SIZE(sc->txqs); qnum++) { |
| if (!sc->txqs[qnum].setup) |
| continue; |
| if (sc->txqs[qnum].qnum < AR5K_TX_QUEUE_ID_DATA_MIN || |
| sc->txqs[qnum].qnum > AR5K_TX_QUEUE_ID_DATA_MAX) |
| continue; |
| |
| sc->txqs[qnum].txq_max = tx; |
| if (sc->txqs[qnum].txq_len >= sc->txqs[qnum].txq_max) |
| ieee80211_stop_queue(hw, sc->txqs[qnum].qnum); |
| } |
| |
| return 0; |
| } |
| |
| |
| const struct ieee80211_ops ath5k_hw_ops = { |
| .tx = ath5k_tx, |
| .start = ath5k_start, |
| .stop = ath5k_stop, |
| .add_interface = ath5k_add_interface, |
| /* .change_interface = not implemented */ |
| .remove_interface = ath5k_remove_interface, |
| .config = ath5k_config, |
| .bss_info_changed = ath5k_bss_info_changed, |
| .prepare_multicast = ath5k_prepare_multicast, |
| .configure_filter = ath5k_configure_filter, |
| /* .set_tim = not implemented */ |
| .set_key = ath5k_set_key, |
| /* .update_tkip_key = not implemented */ |
| /* .hw_scan = not implemented */ |
| .sw_scan_start = ath5k_sw_scan_start, |
| .sw_scan_complete = ath5k_sw_scan_complete, |
| .get_stats = ath5k_get_stats, |
| /* .get_tkip_seq = not implemented */ |
| /* .set_frag_threshold = not implemented */ |
| /* .set_rts_threshold = not implemented */ |
| /* .sta_add = not implemented */ |
| /* .sta_remove = not implemented */ |
| /* .sta_notify = not implemented */ |
| .conf_tx = ath5k_conf_tx, |
| .get_tsf = ath5k_get_tsf, |
| .set_tsf = ath5k_set_tsf, |
| .reset_tsf = ath5k_reset_tsf, |
| /* .tx_last_beacon = not implemented */ |
| /* .ampdu_action = not needed */ |
| .get_survey = ath5k_get_survey, |
| .set_coverage_class = ath5k_set_coverage_class, |
| /* .rfkill_poll = not implemented */ |
| /* .flush = not implemented */ |
| /* .channel_switch = not implemented */ |
| /* .napi_poll = not implemented */ |
| .set_antenna = ath5k_set_antenna, |
| .get_antenna = ath5k_get_antenna, |
| .set_ringparam = ath5k_set_ringparam, |
| .get_ringparam = ath5k_get_ringparam, |
| }; |