| /* |
| * Copyright (c) 2010 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 "htc.h" |
| |
| #ifdef CONFIG_ATH9K_HTC_DEBUGFS |
| static struct dentry *ath9k_debugfs_root; |
| #endif |
| |
| /*************/ |
| /* Utilities */ |
| /*************/ |
| |
| static void ath_update_txpow(struct ath9k_htc_priv *priv) |
| { |
| struct ath_hw *ah = priv->ah; |
| |
| if (priv->curtxpow != priv->txpowlimit) { |
| ath9k_hw_set_txpowerlimit(ah, priv->txpowlimit); |
| /* read back in case value is clamped */ |
| priv->curtxpow = ath9k_hw_regulatory(ah)->power_limit; |
| } |
| } |
| |
| /* HACK Alert: Use 11NG for 2.4, use 11NA for 5 */ |
| static enum htc_phymode ath9k_htc_get_curmode(struct ath9k_htc_priv *priv, |
| struct ath9k_channel *ichan) |
| { |
| enum htc_phymode mode; |
| |
| mode = HTC_MODE_AUTO; |
| |
| switch (ichan->chanmode) { |
| case CHANNEL_G: |
| case CHANNEL_G_HT20: |
| case CHANNEL_G_HT40PLUS: |
| case CHANNEL_G_HT40MINUS: |
| mode = HTC_MODE_11NG; |
| break; |
| case CHANNEL_A: |
| case CHANNEL_A_HT20: |
| case CHANNEL_A_HT40PLUS: |
| case CHANNEL_A_HT40MINUS: |
| mode = HTC_MODE_11NA; |
| break; |
| default: |
| break; |
| } |
| |
| return mode; |
| } |
| |
| static bool ath9k_htc_setpower(struct ath9k_htc_priv *priv, |
| enum ath9k_power_mode mode) |
| { |
| bool ret; |
| |
| mutex_lock(&priv->htc_pm_lock); |
| ret = ath9k_hw_setpower(priv->ah, mode); |
| mutex_unlock(&priv->htc_pm_lock); |
| |
| return ret; |
| } |
| |
| void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv) |
| { |
| mutex_lock(&priv->htc_pm_lock); |
| if (++priv->ps_usecount != 1) |
| goto unlock; |
| ath9k_hw_setpower(priv->ah, ATH9K_PM_AWAKE); |
| |
| unlock: |
| mutex_unlock(&priv->htc_pm_lock); |
| } |
| |
| void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv) |
| { |
| mutex_lock(&priv->htc_pm_lock); |
| if (--priv->ps_usecount != 0) |
| goto unlock; |
| |
| if (priv->ps_idle) |
| ath9k_hw_setpower(priv->ah, ATH9K_PM_FULL_SLEEP); |
| else if (priv->ps_enabled) |
| ath9k_hw_setpower(priv->ah, ATH9K_PM_NETWORK_SLEEP); |
| |
| unlock: |
| mutex_unlock(&priv->htc_pm_lock); |
| } |
| |
| void ath9k_ps_work(struct work_struct *work) |
| { |
| struct ath9k_htc_priv *priv = |
| container_of(work, struct ath9k_htc_priv, |
| ps_work); |
| ath9k_htc_setpower(priv, ATH9K_PM_AWAKE); |
| |
| /* The chip wakes up after receiving the first beacon |
| while network sleep is enabled. For the driver to |
| be in sync with the hw, set the chip to awake and |
| only then set it to sleep. |
| */ |
| ath9k_htc_setpower(priv, ATH9K_PM_NETWORK_SLEEP); |
| } |
| |
| static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv, |
| struct ieee80211_hw *hw, |
| struct ath9k_channel *hchan) |
| { |
| struct ath_hw *ah = priv->ah; |
| struct ath_common *common = ath9k_hw_common(ah); |
| struct ieee80211_conf *conf = &common->hw->conf; |
| bool fastcc = true; |
| struct ieee80211_channel *channel = hw->conf.channel; |
| enum htc_phymode mode; |
| __be16 htc_mode; |
| u8 cmd_rsp; |
| int ret; |
| |
| if (priv->op_flags & OP_INVALID) |
| return -EIO; |
| |
| if (priv->op_flags & OP_FULL_RESET) |
| fastcc = false; |
| |
| /* Fiddle around with fastcc later on, for now just use full reset */ |
| fastcc = false; |
| ath9k_htc_ps_wakeup(priv); |
| htc_stop(priv->htc); |
| WMI_CMD(WMI_DISABLE_INTR_CMDID); |
| WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID); |
| WMI_CMD(WMI_STOP_RECV_CMDID); |
| |
| ath_print(common, ATH_DBG_CONFIG, |
| "(%u MHz) -> (%u MHz), HT: %d, HT40: %d\n", |
| priv->ah->curchan->channel, |
| channel->center_freq, conf_is_ht(conf), conf_is_ht40(conf)); |
| |
| ret = ath9k_hw_reset(ah, hchan, fastcc); |
| if (ret) { |
| ath_print(common, ATH_DBG_FATAL, |
| "Unable to reset channel (%u Mhz) " |
| "reset status %d\n", channel->center_freq, ret); |
| goto err; |
| } |
| |
| ath_update_txpow(priv); |
| |
| WMI_CMD(WMI_START_RECV_CMDID); |
| if (ret) |
| goto err; |
| |
| ath9k_host_rx_init(priv); |
| |
| mode = ath9k_htc_get_curmode(priv, hchan); |
| htc_mode = cpu_to_be16(mode); |
| WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode); |
| if (ret) |
| goto err; |
| |
| WMI_CMD(WMI_ENABLE_INTR_CMDID); |
| if (ret) |
| goto err; |
| |
| htc_start(priv->htc); |
| |
| priv->op_flags &= ~OP_FULL_RESET; |
| err: |
| ath9k_htc_ps_restore(priv); |
| return ret; |
| } |
| |
| static int ath9k_htc_add_monitor_interface(struct ath9k_htc_priv *priv) |
| { |
| struct ath_common *common = ath9k_hw_common(priv->ah); |
| struct ath9k_htc_target_vif hvif; |
| int ret = 0; |
| u8 cmd_rsp; |
| |
| if (priv->nvifs > 0) |
| return -ENOBUFS; |
| |
| memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif)); |
| memcpy(&hvif.myaddr, common->macaddr, ETH_ALEN); |
| |
| hvif.opmode = cpu_to_be32(HTC_M_MONITOR); |
| priv->ah->opmode = NL80211_IFTYPE_MONITOR; |
| hvif.index = priv->nvifs; |
| |
| WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif); |
| if (ret) |
| return ret; |
| |
| priv->nvifs++; |
| return 0; |
| } |
| |
| static int ath9k_htc_remove_monitor_interface(struct ath9k_htc_priv *priv) |
| { |
| struct ath_common *common = ath9k_hw_common(priv->ah); |
| struct ath9k_htc_target_vif hvif; |
| int ret = 0; |
| u8 cmd_rsp; |
| |
| memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif)); |
| memcpy(&hvif.myaddr, common->macaddr, ETH_ALEN); |
| hvif.index = 0; /* Should do for now */ |
| WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif); |
| priv->nvifs--; |
| |
| return ret; |
| } |
| |
| static int ath9k_htc_add_station(struct ath9k_htc_priv *priv, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta) |
| { |
| struct ath_common *common = ath9k_hw_common(priv->ah); |
| struct ath9k_htc_target_sta tsta; |
| struct ath9k_htc_vif *avp = (struct ath9k_htc_vif *) vif->drv_priv; |
| struct ath9k_htc_sta *ista; |
| int ret; |
| u8 cmd_rsp; |
| |
| if (priv->nstations >= ATH9K_HTC_MAX_STA) |
| return -ENOBUFS; |
| |
| memset(&tsta, 0, sizeof(struct ath9k_htc_target_sta)); |
| |
| if (sta) { |
| ista = (struct ath9k_htc_sta *) sta->drv_priv; |
| memcpy(&tsta.macaddr, sta->addr, ETH_ALEN); |
| memcpy(&tsta.bssid, common->curbssid, ETH_ALEN); |
| tsta.associd = common->curaid; |
| tsta.is_vif_sta = 0; |
| tsta.valid = true; |
| ista->index = priv->nstations; |
| } else { |
| memcpy(&tsta.macaddr, vif->addr, ETH_ALEN); |
| tsta.is_vif_sta = 1; |
| } |
| |
| tsta.sta_index = priv->nstations; |
| tsta.vif_index = avp->index; |
| tsta.maxampdu = 0xffff; |
| if (sta && sta->ht_cap.ht_supported) |
| tsta.flags = cpu_to_be16(ATH_HTC_STA_HT); |
| |
| WMI_CMD_BUF(WMI_NODE_CREATE_CMDID, &tsta); |
| if (ret) { |
| if (sta) |
| ath_print(common, ATH_DBG_FATAL, |
| "Unable to add station entry for: %pM\n", sta->addr); |
| return ret; |
| } |
| |
| if (sta) |
| ath_print(common, ATH_DBG_CONFIG, |
| "Added a station entry for: %pM (idx: %d)\n", |
| sta->addr, tsta.sta_index); |
| |
| priv->nstations++; |
| return 0; |
| } |
| |
| static int ath9k_htc_remove_station(struct ath9k_htc_priv *priv, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta) |
| { |
| struct ath_common *common = ath9k_hw_common(priv->ah); |
| struct ath9k_htc_sta *ista; |
| int ret; |
| u8 cmd_rsp, sta_idx; |
| |
| if (sta) { |
| ista = (struct ath9k_htc_sta *) sta->drv_priv; |
| sta_idx = ista->index; |
| } else { |
| sta_idx = 0; |
| } |
| |
| WMI_CMD_BUF(WMI_NODE_REMOVE_CMDID, &sta_idx); |
| if (ret) { |
| if (sta) |
| ath_print(common, ATH_DBG_FATAL, |
| "Unable to remove station entry for: %pM\n", |
| sta->addr); |
| return ret; |
| } |
| |
| if (sta) |
| ath_print(common, ATH_DBG_CONFIG, |
| "Removed a station entry for: %pM (idx: %d)\n", |
| sta->addr, sta_idx); |
| |
| priv->nstations--; |
| return 0; |
| } |
| |
| static int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv) |
| { |
| struct ath9k_htc_cap_target tcap; |
| int ret; |
| u8 cmd_rsp; |
| |
| memset(&tcap, 0, sizeof(struct ath9k_htc_cap_target)); |
| |
| /* FIXME: Values are hardcoded */ |
| tcap.flags = 0x240c40; |
| tcap.flags_ext = 0x80601000; |
| tcap.ampdu_limit = 0xffff0000; |
| tcap.ampdu_subframes = 20; |
| tcap.tx_chainmask_legacy = priv->ah->caps.tx_chainmask; |
| tcap.protmode = 1; |
| tcap.tx_chainmask = priv->ah->caps.tx_chainmask; |
| |
| WMI_CMD_BUF(WMI_TARGET_IC_UPDATE_CMDID, &tcap); |
| |
| return ret; |
| } |
| |
| static void ath9k_htc_setup_rate(struct ath9k_htc_priv *priv, |
| struct ieee80211_sta *sta, |
| struct ath9k_htc_target_rate *trate) |
| { |
| struct ath9k_htc_sta *ista = (struct ath9k_htc_sta *) sta->drv_priv; |
| struct ieee80211_supported_band *sband; |
| u32 caps = 0; |
| int i, j; |
| |
| sband = priv->hw->wiphy->bands[priv->hw->conf.channel->band]; |
| |
| for (i = 0, j = 0; i < sband->n_bitrates; i++) { |
| if (sta->supp_rates[sband->band] & BIT(i)) { |
| trate->rates.legacy_rates.rs_rates[j] |
| = (sband->bitrates[i].bitrate * 2) / 10; |
| j++; |
| } |
| } |
| trate->rates.legacy_rates.rs_nrates = j; |
| |
| if (sta->ht_cap.ht_supported) { |
| for (i = 0, j = 0; i < 77; i++) { |
| if (sta->ht_cap.mcs.rx_mask[i/8] & (1<<(i%8))) |
| trate->rates.ht_rates.rs_rates[j++] = i; |
| if (j == ATH_HTC_RATE_MAX) |
| break; |
| } |
| trate->rates.ht_rates.rs_nrates = j; |
| |
| caps = WLAN_RC_HT_FLAG; |
| if (sta->ht_cap.mcs.rx_mask[1]) |
| caps |= WLAN_RC_DS_FLAG; |
| if (sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) |
| caps |= WLAN_RC_40_FLAG; |
| if (conf_is_ht40(&priv->hw->conf) && |
| (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40)) |
| caps |= WLAN_RC_SGI_FLAG; |
| else if (conf_is_ht20(&priv->hw->conf) && |
| (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20)) |
| caps |= WLAN_RC_SGI_FLAG; |
| } |
| |
| trate->sta_index = ista->index; |
| trate->isnew = 1; |
| trate->capflags = cpu_to_be32(caps); |
| } |
| |
| static int ath9k_htc_send_rate_cmd(struct ath9k_htc_priv *priv, |
| struct ath9k_htc_target_rate *trate) |
| { |
| struct ath_common *common = ath9k_hw_common(priv->ah); |
| int ret; |
| u8 cmd_rsp; |
| |
| WMI_CMD_BUF(WMI_RC_RATE_UPDATE_CMDID, trate); |
| if (ret) { |
| ath_print(common, ATH_DBG_FATAL, |
| "Unable to initialize Rate information on target\n"); |
| } |
| |
| return ret; |
| } |
| |
| static void ath9k_htc_init_rate(struct ath9k_htc_priv *priv, |
| struct ieee80211_sta *sta) |
| { |
| struct ath_common *common = ath9k_hw_common(priv->ah); |
| struct ath9k_htc_target_rate trate; |
| int ret; |
| |
| memset(&trate, 0, sizeof(struct ath9k_htc_target_rate)); |
| ath9k_htc_setup_rate(priv, sta, &trate); |
| ret = ath9k_htc_send_rate_cmd(priv, &trate); |
| if (!ret) |
| ath_print(common, ATH_DBG_CONFIG, |
| "Updated target sta: %pM, rate caps: 0x%X\n", |
| sta->addr, be32_to_cpu(trate.capflags)); |
| } |
| |
| static void ath9k_htc_update_rate(struct ath9k_htc_priv *priv, |
| struct ieee80211_vif *vif, |
| struct ieee80211_bss_conf *bss_conf) |
| { |
| struct ath_common *common = ath9k_hw_common(priv->ah); |
| struct ath9k_htc_target_rate trate; |
| struct ieee80211_sta *sta; |
| int ret; |
| |
| memset(&trate, 0, sizeof(struct ath9k_htc_target_rate)); |
| |
| rcu_read_lock(); |
| sta = ieee80211_find_sta(vif, bss_conf->bssid); |
| if (!sta) { |
| rcu_read_unlock(); |
| return; |
| } |
| ath9k_htc_setup_rate(priv, sta, &trate); |
| rcu_read_unlock(); |
| |
| ret = ath9k_htc_send_rate_cmd(priv, &trate); |
| if (!ret) |
| ath_print(common, ATH_DBG_CONFIG, |
| "Updated target sta: %pM, rate caps: 0x%X\n", |
| bss_conf->bssid, be32_to_cpu(trate.capflags)); |
| } |
| |
| int ath9k_htc_tx_aggr_oper(struct ath9k_htc_priv *priv, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta, |
| enum ieee80211_ampdu_mlme_action action, u16 tid) |
| { |
| struct ath_common *common = ath9k_hw_common(priv->ah); |
| struct ath9k_htc_target_aggr aggr; |
| struct ath9k_htc_sta *ista; |
| int ret = 0; |
| u8 cmd_rsp; |
| |
| if (tid >= ATH9K_HTC_MAX_TID) |
| return -EINVAL; |
| |
| memset(&aggr, 0, sizeof(struct ath9k_htc_target_aggr)); |
| ista = (struct ath9k_htc_sta *) sta->drv_priv; |
| |
| aggr.sta_index = ista->index; |
| aggr.tidno = tid & 0xf; |
| aggr.aggr_enable = (action == IEEE80211_AMPDU_TX_START) ? true : false; |
| |
| WMI_CMD_BUF(WMI_TX_AGGR_ENABLE_CMDID, &aggr); |
| if (ret) |
| ath_print(common, ATH_DBG_CONFIG, |
| "Unable to %s TX aggregation for (%pM, %d)\n", |
| (aggr.aggr_enable) ? "start" : "stop", sta->addr, tid); |
| else |
| ath_print(common, ATH_DBG_CONFIG, |
| "%s TX aggregation for (%pM, %d)\n", |
| (aggr.aggr_enable) ? "Starting" : "Stopping", |
| sta->addr, tid); |
| |
| spin_lock_bh(&priv->tx_lock); |
| ista->tid_state[tid] = (aggr.aggr_enable && !ret) ? AGGR_START : AGGR_STOP; |
| spin_unlock_bh(&priv->tx_lock); |
| |
| return ret; |
| } |
| |
| /*********/ |
| /* DEBUG */ |
| /*********/ |
| |
| #ifdef CONFIG_ATH9K_HTC_DEBUGFS |
| |
| static int ath9k_debugfs_open(struct inode *inode, struct file *file) |
| { |
| file->private_data = inode->i_private; |
| return 0; |
| } |
| |
| static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath9k_htc_priv *priv = file->private_data; |
| struct ath9k_htc_target_stats cmd_rsp; |
| char buf[512]; |
| unsigned int len = 0; |
| int ret = 0; |
| |
| memset(&cmd_rsp, 0, sizeof(cmd_rsp)); |
| |
| WMI_CMD(WMI_TGT_STATS_CMDID); |
| if (ret) |
| return -EINVAL; |
| |
| |
| len += snprintf(buf + len, sizeof(buf) - len, |
| "%19s : %10u\n", "TX Short Retries", |
| be32_to_cpu(cmd_rsp.tx_shortretry)); |
| len += snprintf(buf + len, sizeof(buf) - len, |
| "%19s : %10u\n", "TX Long Retries", |
| be32_to_cpu(cmd_rsp.tx_longretry)); |
| len += snprintf(buf + len, sizeof(buf) - len, |
| "%19s : %10u\n", "TX Xretries", |
| be32_to_cpu(cmd_rsp.tx_xretries)); |
| len += snprintf(buf + len, sizeof(buf) - len, |
| "%19s : %10u\n", "TX Unaggr. Xretries", |
| be32_to_cpu(cmd_rsp.ht_txunaggr_xretry)); |
| len += snprintf(buf + len, sizeof(buf) - len, |
| "%19s : %10u\n", "TX Xretries (HT)", |
| be32_to_cpu(cmd_rsp.ht_tx_xretries)); |
| len += snprintf(buf + len, sizeof(buf) - len, |
| "%19s : %10u\n", "TX Rate", priv->debug.txrate); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, len); |
| } |
| |
| static const struct file_operations fops_tgt_stats = { |
| .read = read_file_tgt_stats, |
| .open = ath9k_debugfs_open, |
| .owner = THIS_MODULE |
| }; |
| |
| static ssize_t read_file_xmit(struct file *file, char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath9k_htc_priv *priv = file->private_data; |
| char buf[512]; |
| unsigned int len = 0; |
| |
| len += snprintf(buf + len, sizeof(buf) - len, |
| "%20s : %10u\n", "Buffers queued", |
| priv->debug.tx_stats.buf_queued); |
| len += snprintf(buf + len, sizeof(buf) - len, |
| "%20s : %10u\n", "Buffers completed", |
| priv->debug.tx_stats.buf_completed); |
| len += snprintf(buf + len, sizeof(buf) - len, |
| "%20s : %10u\n", "SKBs queued", |
| priv->debug.tx_stats.skb_queued); |
| len += snprintf(buf + len, sizeof(buf) - len, |
| "%20s : %10u\n", "SKBs completed", |
| priv->debug.tx_stats.skb_completed); |
| len += snprintf(buf + len, sizeof(buf) - len, |
| "%20s : %10u\n", "SKBs dropped", |
| priv->debug.tx_stats.skb_dropped); |
| |
| len += snprintf(buf + len, sizeof(buf) - len, |
| "%20s : %10u\n", "BE queued", |
| priv->debug.tx_stats.queue_stats[WME_AC_BE]); |
| len += snprintf(buf + len, sizeof(buf) - len, |
| "%20s : %10u\n", "BK queued", |
| priv->debug.tx_stats.queue_stats[WME_AC_BK]); |
| len += snprintf(buf + len, sizeof(buf) - len, |
| "%20s : %10u\n", "VI queued", |
| priv->debug.tx_stats.queue_stats[WME_AC_VI]); |
| len += snprintf(buf + len, sizeof(buf) - len, |
| "%20s : %10u\n", "VO queued", |
| priv->debug.tx_stats.queue_stats[WME_AC_VO]); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, len); |
| } |
| |
| static const struct file_operations fops_xmit = { |
| .read = read_file_xmit, |
| .open = ath9k_debugfs_open, |
| .owner = THIS_MODULE |
| }; |
| |
| static ssize_t read_file_recv(struct file *file, char __user *user_buf, |
| size_t count, loff_t *ppos) |
| { |
| struct ath9k_htc_priv *priv = file->private_data; |
| char buf[512]; |
| unsigned int len = 0; |
| |
| len += snprintf(buf + len, sizeof(buf) - len, |
| "%20s : %10u\n", "SKBs allocated", |
| priv->debug.rx_stats.skb_allocated); |
| len += snprintf(buf + len, sizeof(buf) - len, |
| "%20s : %10u\n", "SKBs completed", |
| priv->debug.rx_stats.skb_completed); |
| len += snprintf(buf + len, sizeof(buf) - len, |
| "%20s : %10u\n", "SKBs Dropped", |
| priv->debug.rx_stats.skb_dropped); |
| |
| return simple_read_from_buffer(user_buf, count, ppos, buf, len); |
| } |
| |
| static const struct file_operations fops_recv = { |
| .read = read_file_recv, |
| .open = ath9k_debugfs_open, |
| .owner = THIS_MODULE |
| }; |
| |
| int ath9k_htc_init_debug(struct ath_hw *ah) |
| { |
| struct ath_common *common = ath9k_hw_common(ah); |
| struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; |
| |
| if (!ath9k_debugfs_root) |
| return -ENOENT; |
| |
| priv->debug.debugfs_phy = debugfs_create_dir(wiphy_name(priv->hw->wiphy), |
| ath9k_debugfs_root); |
| if (!priv->debug.debugfs_phy) |
| goto err; |
| |
| priv->debug.debugfs_tgt_stats = debugfs_create_file("tgt_stats", S_IRUSR, |
| priv->debug.debugfs_phy, |
| priv, &fops_tgt_stats); |
| if (!priv->debug.debugfs_tgt_stats) |
| goto err; |
| |
| |
| priv->debug.debugfs_xmit = debugfs_create_file("xmit", S_IRUSR, |
| priv->debug.debugfs_phy, |
| priv, &fops_xmit); |
| if (!priv->debug.debugfs_xmit) |
| goto err; |
| |
| priv->debug.debugfs_recv = debugfs_create_file("recv", S_IRUSR, |
| priv->debug.debugfs_phy, |
| priv, &fops_recv); |
| if (!priv->debug.debugfs_recv) |
| goto err; |
| |
| return 0; |
| |
| err: |
| ath9k_htc_exit_debug(ah); |
| return -ENOMEM; |
| } |
| |
| void ath9k_htc_exit_debug(struct ath_hw *ah) |
| { |
| struct ath_common *common = ath9k_hw_common(ah); |
| struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; |
| |
| debugfs_remove(priv->debug.debugfs_recv); |
| debugfs_remove(priv->debug.debugfs_xmit); |
| debugfs_remove(priv->debug.debugfs_tgt_stats); |
| debugfs_remove(priv->debug.debugfs_phy); |
| } |
| |
| int ath9k_htc_debug_create_root(void) |
| { |
| ath9k_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL); |
| if (!ath9k_debugfs_root) |
| return -ENOENT; |
| |
| return 0; |
| } |
| |
| void ath9k_htc_debug_remove_root(void) |
| { |
| debugfs_remove(ath9k_debugfs_root); |
| ath9k_debugfs_root = NULL; |
| } |
| |
| #endif /* CONFIG_ATH9K_HTC_DEBUGFS */ |
| |
| /*******/ |
| /* ANI */ |
| /*******/ |
| |
| static void ath_start_ani(struct ath9k_htc_priv *priv) |
| { |
| struct ath_common *common = ath9k_hw_common(priv->ah); |
| unsigned long timestamp = jiffies_to_msecs(jiffies); |
| |
| common->ani.longcal_timer = timestamp; |
| common->ani.shortcal_timer = timestamp; |
| common->ani.checkani_timer = timestamp; |
| |
| ieee80211_queue_delayed_work(common->hw, &priv->ath9k_ani_work, |
| msecs_to_jiffies(ATH_ANI_POLLINTERVAL)); |
| } |
| |
| void ath9k_ani_work(struct work_struct *work) |
| { |
| struct ath9k_htc_priv *priv = |
| container_of(work, struct ath9k_htc_priv, |
| ath9k_ani_work.work); |
| struct ath_hw *ah = priv->ah; |
| struct ath_common *common = ath9k_hw_common(ah); |
| bool longcal = false; |
| bool shortcal = false; |
| bool aniflag = false; |
| unsigned int timestamp = jiffies_to_msecs(jiffies); |
| u32 cal_interval, short_cal_interval; |
| |
| short_cal_interval = ATH_STA_SHORT_CALINTERVAL; |
| |
| /* Only calibrate if awake */ |
| if (ah->power_mode != ATH9K_PM_AWAKE) |
| goto set_timer; |
| |
| /* Long calibration runs independently of short calibration. */ |
| if ((timestamp - common->ani.longcal_timer) >= ATH_LONG_CALINTERVAL) { |
| longcal = true; |
| ath_print(common, ATH_DBG_ANI, "longcal @%lu\n", jiffies); |
| common->ani.longcal_timer = timestamp; |
| } |
| |
| /* Short calibration applies only while caldone is false */ |
| if (!common->ani.caldone) { |
| if ((timestamp - common->ani.shortcal_timer) >= |
| short_cal_interval) { |
| shortcal = true; |
| ath_print(common, ATH_DBG_ANI, |
| "shortcal @%lu\n", jiffies); |
| common->ani.shortcal_timer = timestamp; |
| common->ani.resetcal_timer = timestamp; |
| } |
| } else { |
| if ((timestamp - common->ani.resetcal_timer) >= |
| ATH_RESTART_CALINTERVAL) { |
| common->ani.caldone = ath9k_hw_reset_calvalid(ah); |
| if (common->ani.caldone) |
| common->ani.resetcal_timer = timestamp; |
| } |
| } |
| |
| /* Verify whether we must check ANI */ |
| if ((timestamp - common->ani.checkani_timer) >= ATH_ANI_POLLINTERVAL) { |
| aniflag = true; |
| common->ani.checkani_timer = timestamp; |
| } |
| |
| /* Skip all processing if there's nothing to do. */ |
| if (longcal || shortcal || aniflag) { |
| |
| ath9k_htc_ps_wakeup(priv); |
| |
| /* Call ANI routine if necessary */ |
| if (aniflag) |
| ath9k_hw_ani_monitor(ah, ah->curchan); |
| |
| /* Perform calibration if necessary */ |
| if (longcal || shortcal) { |
| common->ani.caldone = |
| ath9k_hw_calibrate(ah, ah->curchan, |
| common->rx_chainmask, |
| longcal); |
| |
| if (longcal) |
| common->ani.noise_floor = |
| ath9k_hw_getchan_noise(ah, ah->curchan); |
| |
| ath_print(common, ATH_DBG_ANI, |
| " calibrate chan %u/%x nf: %d\n", |
| ah->curchan->channel, |
| ah->curchan->channelFlags, |
| common->ani.noise_floor); |
| } |
| |
| ath9k_htc_ps_restore(priv); |
| } |
| |
| set_timer: |
| /* |
| * Set timer interval based on previous results. |
| * The interval must be the shortest necessary to satisfy ANI, |
| * short calibration and long calibration. |
| */ |
| cal_interval = ATH_LONG_CALINTERVAL; |
| if (priv->ah->config.enable_ani) |
| cal_interval = min(cal_interval, (u32)ATH_ANI_POLLINTERVAL); |
| if (!common->ani.caldone) |
| cal_interval = min(cal_interval, (u32)short_cal_interval); |
| |
| ieee80211_queue_delayed_work(common->hw, &priv->ath9k_ani_work, |
| msecs_to_jiffies(cal_interval)); |
| } |
| |
| /*******/ |
| /* LED */ |
| /*******/ |
| |
| static void ath9k_led_blink_work(struct work_struct *work) |
| { |
| struct ath9k_htc_priv *priv = container_of(work, struct ath9k_htc_priv, |
| ath9k_led_blink_work.work); |
| |
| if (!(priv->op_flags & OP_LED_ASSOCIATED)) |
| return; |
| |
| if ((priv->led_on_duration == ATH_LED_ON_DURATION_IDLE) || |
| (priv->led_off_duration == ATH_LED_OFF_DURATION_IDLE)) |
| ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 0); |
| else |
| ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, |
| (priv->op_flags & OP_LED_ON) ? 1 : 0); |
| |
| ieee80211_queue_delayed_work(priv->hw, |
| &priv->ath9k_led_blink_work, |
| (priv->op_flags & OP_LED_ON) ? |
| msecs_to_jiffies(priv->led_off_duration) : |
| msecs_to_jiffies(priv->led_on_duration)); |
| |
| priv->led_on_duration = priv->led_on_cnt ? |
| max((ATH_LED_ON_DURATION_IDLE - priv->led_on_cnt), 25) : |
| ATH_LED_ON_DURATION_IDLE; |
| priv->led_off_duration = priv->led_off_cnt ? |
| max((ATH_LED_OFF_DURATION_IDLE - priv->led_off_cnt), 10) : |
| ATH_LED_OFF_DURATION_IDLE; |
| priv->led_on_cnt = priv->led_off_cnt = 0; |
| |
| if (priv->op_flags & OP_LED_ON) |
| priv->op_flags &= ~OP_LED_ON; |
| else |
| priv->op_flags |= OP_LED_ON; |
| } |
| |
| static void ath9k_led_brightness_work(struct work_struct *work) |
| { |
| struct ath_led *led = container_of(work, struct ath_led, |
| brightness_work.work); |
| struct ath9k_htc_priv *priv = led->priv; |
| |
| switch (led->brightness) { |
| case LED_OFF: |
| if (led->led_type == ATH_LED_ASSOC || |
| led->led_type == ATH_LED_RADIO) { |
| ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, |
| (led->led_type == ATH_LED_RADIO)); |
| priv->op_flags &= ~OP_LED_ASSOCIATED; |
| if (led->led_type == ATH_LED_RADIO) |
| priv->op_flags &= ~OP_LED_ON; |
| } else { |
| priv->led_off_cnt++; |
| } |
| break; |
| case LED_FULL: |
| if (led->led_type == ATH_LED_ASSOC) { |
| priv->op_flags |= OP_LED_ASSOCIATED; |
| ieee80211_queue_delayed_work(priv->hw, |
| &priv->ath9k_led_blink_work, 0); |
| } else if (led->led_type == ATH_LED_RADIO) { |
| ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 0); |
| priv->op_flags |= OP_LED_ON; |
| } else { |
| priv->led_on_cnt++; |
| } |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static void ath9k_led_brightness(struct led_classdev *led_cdev, |
| enum led_brightness brightness) |
| { |
| struct ath_led *led = container_of(led_cdev, struct ath_led, led_cdev); |
| struct ath9k_htc_priv *priv = led->priv; |
| |
| led->brightness = brightness; |
| if (!(priv->op_flags & OP_LED_DEINIT)) |
| ieee80211_queue_delayed_work(priv->hw, |
| &led->brightness_work, 0); |
| } |
| |
| static void ath9k_led_stop_brightness(struct ath9k_htc_priv *priv) |
| { |
| cancel_delayed_work_sync(&priv->radio_led.brightness_work); |
| cancel_delayed_work_sync(&priv->assoc_led.brightness_work); |
| cancel_delayed_work_sync(&priv->tx_led.brightness_work); |
| cancel_delayed_work_sync(&priv->rx_led.brightness_work); |
| } |
| |
| static int ath9k_register_led(struct ath9k_htc_priv *priv, struct ath_led *led, |
| char *trigger) |
| { |
| int ret; |
| |
| led->priv = priv; |
| led->led_cdev.name = led->name; |
| led->led_cdev.default_trigger = trigger; |
| led->led_cdev.brightness_set = ath9k_led_brightness; |
| |
| ret = led_classdev_register(wiphy_dev(priv->hw->wiphy), &led->led_cdev); |
| if (ret) |
| ath_print(ath9k_hw_common(priv->ah), ATH_DBG_FATAL, |
| "Failed to register led:%s", led->name); |
| else |
| led->registered = 1; |
| |
| INIT_DELAYED_WORK(&led->brightness_work, ath9k_led_brightness_work); |
| |
| return ret; |
| } |
| |
| static void ath9k_unregister_led(struct ath_led *led) |
| { |
| if (led->registered) { |
| led_classdev_unregister(&led->led_cdev); |
| led->registered = 0; |
| } |
| } |
| |
| void ath9k_deinit_leds(struct ath9k_htc_priv *priv) |
| { |
| priv->op_flags |= OP_LED_DEINIT; |
| ath9k_unregister_led(&priv->assoc_led); |
| priv->op_flags &= ~OP_LED_ASSOCIATED; |
| ath9k_unregister_led(&priv->tx_led); |
| ath9k_unregister_led(&priv->rx_led); |
| ath9k_unregister_led(&priv->radio_led); |
| } |
| |
| void ath9k_init_leds(struct ath9k_htc_priv *priv) |
| { |
| char *trigger; |
| int ret; |
| |
| if (AR_SREV_9287(priv->ah)) |
| priv->ah->led_pin = ATH_LED_PIN_9287; |
| else if (AR_SREV_9271(priv->ah)) |
| priv->ah->led_pin = ATH_LED_PIN_9271; |
| else if (AR_DEVID_7010(priv->ah)) |
| priv->ah->led_pin = ATH_LED_PIN_7010; |
| else |
| priv->ah->led_pin = ATH_LED_PIN_DEF; |
| |
| /* Configure gpio 1 for output */ |
| ath9k_hw_cfg_output(priv->ah, priv->ah->led_pin, |
| AR_GPIO_OUTPUT_MUX_AS_OUTPUT); |
| /* LED off, active low */ |
| ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 1); |
| |
| INIT_DELAYED_WORK(&priv->ath9k_led_blink_work, ath9k_led_blink_work); |
| |
| trigger = ieee80211_get_radio_led_name(priv->hw); |
| snprintf(priv->radio_led.name, sizeof(priv->radio_led.name), |
| "ath9k-%s::radio", wiphy_name(priv->hw->wiphy)); |
| ret = ath9k_register_led(priv, &priv->radio_led, trigger); |
| priv->radio_led.led_type = ATH_LED_RADIO; |
| if (ret) |
| goto fail; |
| |
| trigger = ieee80211_get_assoc_led_name(priv->hw); |
| snprintf(priv->assoc_led.name, sizeof(priv->assoc_led.name), |
| "ath9k-%s::assoc", wiphy_name(priv->hw->wiphy)); |
| ret = ath9k_register_led(priv, &priv->assoc_led, trigger); |
| priv->assoc_led.led_type = ATH_LED_ASSOC; |
| if (ret) |
| goto fail; |
| |
| trigger = ieee80211_get_tx_led_name(priv->hw); |
| snprintf(priv->tx_led.name, sizeof(priv->tx_led.name), |
| "ath9k-%s::tx", wiphy_name(priv->hw->wiphy)); |
| ret = ath9k_register_led(priv, &priv->tx_led, trigger); |
| priv->tx_led.led_type = ATH_LED_TX; |
| if (ret) |
| goto fail; |
| |
| trigger = ieee80211_get_rx_led_name(priv->hw); |
| snprintf(priv->rx_led.name, sizeof(priv->rx_led.name), |
| "ath9k-%s::rx", wiphy_name(priv->hw->wiphy)); |
| ret = ath9k_register_led(priv, &priv->rx_led, trigger); |
| priv->rx_led.led_type = ATH_LED_RX; |
| if (ret) |
| goto fail; |
| |
| priv->op_flags &= ~OP_LED_DEINIT; |
| |
| return; |
| |
| fail: |
| cancel_delayed_work_sync(&priv->ath9k_led_blink_work); |
| ath9k_deinit_leds(priv); |
| } |
| |
| /*******************/ |
| /* Rfkill */ |
| /*******************/ |
| |
| static bool ath_is_rfkill_set(struct ath9k_htc_priv *priv) |
| { |
| return ath9k_hw_gpio_get(priv->ah, priv->ah->rfkill_gpio) == |
| priv->ah->rfkill_polarity; |
| } |
| |
| static void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| bool blocked = !!ath_is_rfkill_set(priv); |
| |
| wiphy_rfkill_set_hw_state(hw->wiphy, blocked); |
| } |
| |
| void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv) |
| { |
| if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT) |
| wiphy_rfkill_start_polling(priv->hw->wiphy); |
| } |
| |
| static void ath9k_htc_radio_enable(struct ieee80211_hw *hw) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| struct ath_hw *ah = priv->ah; |
| struct ath_common *common = ath9k_hw_common(ah); |
| int ret; |
| u8 cmd_rsp; |
| |
| if (!ah->curchan) |
| ah->curchan = ath9k_cmn_get_curchannel(hw, ah); |
| |
| /* Reset the HW */ |
| ret = ath9k_hw_reset(ah, ah->curchan, false); |
| if (ret) { |
| ath_print(common, ATH_DBG_FATAL, |
| "Unable to reset hardware; reset status %d " |
| "(freq %u MHz)\n", ret, ah->curchan->channel); |
| } |
| |
| ath_update_txpow(priv); |
| |
| /* Start RX */ |
| WMI_CMD(WMI_START_RECV_CMDID); |
| ath9k_host_rx_init(priv); |
| |
| /* Start TX */ |
| htc_start(priv->htc); |
| spin_lock_bh(&priv->tx_lock); |
| priv->tx_queues_stop = false; |
| spin_unlock_bh(&priv->tx_lock); |
| ieee80211_wake_queues(hw); |
| |
| WMI_CMD(WMI_ENABLE_INTR_CMDID); |
| |
| /* Enable LED */ |
| ath9k_hw_cfg_output(ah, ah->led_pin, |
| AR_GPIO_OUTPUT_MUX_AS_OUTPUT); |
| ath9k_hw_set_gpio(ah, ah->led_pin, 0); |
| } |
| |
| static void ath9k_htc_radio_disable(struct ieee80211_hw *hw) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| struct ath_hw *ah = priv->ah; |
| struct ath_common *common = ath9k_hw_common(ah); |
| int ret; |
| u8 cmd_rsp; |
| |
| ath9k_htc_ps_wakeup(priv); |
| |
| /* Disable LED */ |
| ath9k_hw_set_gpio(ah, ah->led_pin, 1); |
| ath9k_hw_cfg_gpio_input(ah, ah->led_pin); |
| |
| WMI_CMD(WMI_DISABLE_INTR_CMDID); |
| |
| /* Stop TX */ |
| ieee80211_stop_queues(hw); |
| htc_stop(priv->htc); |
| WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID); |
| skb_queue_purge(&priv->tx_queue); |
| |
| /* Stop RX */ |
| WMI_CMD(WMI_STOP_RECV_CMDID); |
| |
| /* |
| * The MIB counters have to be disabled here, |
| * since the target doesn't do it. |
| */ |
| ath9k_hw_disable_mib_counters(ah); |
| |
| if (!ah->curchan) |
| ah->curchan = ath9k_cmn_get_curchannel(hw, ah); |
| |
| /* Reset the HW */ |
| ret = ath9k_hw_reset(ah, ah->curchan, false); |
| if (ret) { |
| ath_print(common, ATH_DBG_FATAL, |
| "Unable to reset hardware; reset status %d " |
| "(freq %u MHz)\n", ret, ah->curchan->channel); |
| } |
| |
| /* Disable the PHY */ |
| ath9k_hw_phy_disable(ah); |
| |
| ath9k_htc_ps_restore(priv); |
| ath9k_htc_setpower(priv, ATH9K_PM_FULL_SLEEP); |
| } |
| |
| /**********************/ |
| /* mac80211 Callbacks */ |
| /**********************/ |
| |
| static int ath9k_htc_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
| { |
| struct ieee80211_hdr *hdr; |
| struct ath9k_htc_priv *priv = hw->priv; |
| int padpos, padsize, ret; |
| |
| hdr = (struct ieee80211_hdr *) skb->data; |
| |
| /* Add the padding after the header if this is not already done */ |
| padpos = ath9k_cmn_padpos(hdr->frame_control); |
| padsize = padpos & 3; |
| if (padsize && skb->len > padpos) { |
| if (skb_headroom(skb) < padsize) |
| return -1; |
| skb_push(skb, padsize); |
| memmove(skb->data, skb->data + padsize, padpos); |
| } |
| |
| ret = ath9k_htc_tx_start(priv, skb); |
| if (ret != 0) { |
| if (ret == -ENOMEM) { |
| ath_print(ath9k_hw_common(priv->ah), ATH_DBG_XMIT, |
| "Stopping TX queues\n"); |
| ieee80211_stop_queues(hw); |
| spin_lock_bh(&priv->tx_lock); |
| priv->tx_queues_stop = true; |
| spin_unlock_bh(&priv->tx_lock); |
| } else { |
| ath_print(ath9k_hw_common(priv->ah), ATH_DBG_XMIT, |
| "Tx failed"); |
| } |
| goto fail_tx; |
| } |
| |
| return 0; |
| |
| fail_tx: |
| dev_kfree_skb_any(skb); |
| return 0; |
| } |
| |
| static int ath9k_htc_start(struct ieee80211_hw *hw) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| struct ath_hw *ah = priv->ah; |
| struct ath_common *common = ath9k_hw_common(ah); |
| struct ieee80211_channel *curchan = hw->conf.channel; |
| struct ath9k_channel *init_channel; |
| int ret = 0; |
| enum htc_phymode mode; |
| __be16 htc_mode; |
| u8 cmd_rsp; |
| |
| mutex_lock(&priv->mutex); |
| |
| ath_print(common, ATH_DBG_CONFIG, |
| "Starting driver with initial channel: %d MHz\n", |
| curchan->center_freq); |
| |
| /* Ensure that HW is awake before flushing RX */ |
| ath9k_htc_setpower(priv, ATH9K_PM_AWAKE); |
| WMI_CMD(WMI_FLUSH_RECV_CMDID); |
| |
| /* setup initial channel */ |
| init_channel = ath9k_cmn_get_curchannel(hw, ah); |
| |
| /* Reset SERDES registers */ |
| ath9k_hw_configpcipowersave(ah, 0, 0); |
| |
| ath9k_hw_htc_resetinit(ah); |
| ret = ath9k_hw_reset(ah, init_channel, false); |
| if (ret) { |
| ath_print(common, ATH_DBG_FATAL, |
| "Unable to reset hardware; reset status %d " |
| "(freq %u MHz)\n", ret, curchan->center_freq); |
| mutex_unlock(&priv->mutex); |
| return ret; |
| } |
| |
| ath_update_txpow(priv); |
| |
| mode = ath9k_htc_get_curmode(priv, init_channel); |
| htc_mode = cpu_to_be16(mode); |
| WMI_CMD_BUF(WMI_SET_MODE_CMDID, &htc_mode); |
| WMI_CMD(WMI_ATH_INIT_CMDID); |
| WMI_CMD(WMI_START_RECV_CMDID); |
| |
| ath9k_host_rx_init(priv); |
| |
| priv->op_flags &= ~OP_INVALID; |
| htc_start(priv->htc); |
| |
| spin_lock_bh(&priv->tx_lock); |
| priv->tx_queues_stop = false; |
| spin_unlock_bh(&priv->tx_lock); |
| |
| ieee80211_wake_queues(hw); |
| |
| mutex_unlock(&priv->mutex); |
| |
| return ret; |
| } |
| |
| static void ath9k_htc_stop(struct ieee80211_hw *hw) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| struct ath_hw *ah = priv->ah; |
| struct ath_common *common = ath9k_hw_common(ah); |
| int ret = 0; |
| u8 cmd_rsp; |
| |
| mutex_lock(&priv->mutex); |
| |
| if (priv->op_flags & OP_INVALID) { |
| ath_print(common, ATH_DBG_ANY, "Device not present\n"); |
| mutex_unlock(&priv->mutex); |
| return; |
| } |
| |
| /* Cancel all the running timers/work .. */ |
| cancel_work_sync(&priv->ps_work); |
| cancel_delayed_work_sync(&priv->ath9k_ani_work); |
| cancel_delayed_work_sync(&priv->ath9k_led_blink_work); |
| ath9k_led_stop_brightness(priv); |
| |
| ath9k_htc_ps_wakeup(priv); |
| htc_stop(priv->htc); |
| WMI_CMD(WMI_DISABLE_INTR_CMDID); |
| WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID); |
| WMI_CMD(WMI_STOP_RECV_CMDID); |
| skb_queue_purge(&priv->tx_queue); |
| |
| /* Remove monitor interface here */ |
| if (ah->opmode == NL80211_IFTYPE_MONITOR) { |
| if (ath9k_htc_remove_monitor_interface(priv)) |
| ath_print(common, ATH_DBG_FATAL, |
| "Unable to remove monitor interface\n"); |
| else |
| ath_print(common, ATH_DBG_CONFIG, |
| "Monitor interface removed\n"); |
| } |
| |
| ath9k_hw_phy_disable(ah); |
| ath9k_hw_disable(ah); |
| ath9k_hw_configpcipowersave(ah, 1, 1); |
| ath9k_htc_ps_restore(priv); |
| ath9k_htc_setpower(priv, ATH9K_PM_FULL_SLEEP); |
| |
| priv->op_flags |= OP_INVALID; |
| |
| ath_print(common, ATH_DBG_CONFIG, "Driver halt\n"); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static int ath9k_htc_add_interface(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| struct ath9k_htc_vif *avp = (void *)vif->drv_priv; |
| struct ath_common *common = ath9k_hw_common(priv->ah); |
| struct ath9k_htc_target_vif hvif; |
| int ret = 0; |
| u8 cmd_rsp; |
| |
| mutex_lock(&priv->mutex); |
| |
| /* Only one interface for now */ |
| if (priv->nvifs > 0) { |
| ret = -ENOBUFS; |
| goto out; |
| } |
| |
| ath9k_htc_ps_wakeup(priv); |
| memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif)); |
| memcpy(&hvif.myaddr, vif->addr, ETH_ALEN); |
| |
| switch (vif->type) { |
| case NL80211_IFTYPE_STATION: |
| hvif.opmode = cpu_to_be32(HTC_M_STA); |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| hvif.opmode = cpu_to_be32(HTC_M_IBSS); |
| break; |
| default: |
| ath_print(common, ATH_DBG_FATAL, |
| "Interface type %d not yet supported\n", vif->type); |
| ret = -EOPNOTSUPP; |
| goto out; |
| } |
| |
| ath_print(common, ATH_DBG_CONFIG, |
| "Attach a VIF of type: %d\n", vif->type); |
| |
| priv->ah->opmode = vif->type; |
| |
| /* Index starts from zero on the target */ |
| avp->index = hvif.index = priv->nvifs; |
| hvif.rtsthreshold = cpu_to_be16(2304); |
| WMI_CMD_BUF(WMI_VAP_CREATE_CMDID, &hvif); |
| if (ret) |
| goto out; |
| |
| priv->nvifs++; |
| |
| /* |
| * We need a node in target to tx mgmt frames |
| * before association. |
| */ |
| ret = ath9k_htc_add_station(priv, vif, NULL); |
| if (ret) |
| goto out; |
| |
| ret = ath9k_htc_update_cap_target(priv); |
| if (ret) |
| ath_print(common, ATH_DBG_CONFIG, "Failed to update" |
| " capability in target \n"); |
| |
| priv->vif = vif; |
| out: |
| ath9k_htc_ps_restore(priv); |
| mutex_unlock(&priv->mutex); |
| |
| return ret; |
| } |
| |
| static void ath9k_htc_remove_interface(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| struct ath_common *common = ath9k_hw_common(priv->ah); |
| struct ath9k_htc_vif *avp = (void *)vif->drv_priv; |
| struct ath9k_htc_target_vif hvif; |
| int ret = 0; |
| u8 cmd_rsp; |
| |
| ath_print(common, ATH_DBG_CONFIG, "Detach Interface\n"); |
| |
| mutex_lock(&priv->mutex); |
| ath9k_htc_ps_wakeup(priv); |
| |
| memset(&hvif, 0, sizeof(struct ath9k_htc_target_vif)); |
| memcpy(&hvif.myaddr, vif->addr, ETH_ALEN); |
| hvif.index = avp->index; |
| WMI_CMD_BUF(WMI_VAP_REMOVE_CMDID, &hvif); |
| priv->nvifs--; |
| |
| ath9k_htc_remove_station(priv, vif, NULL); |
| priv->vif = NULL; |
| |
| ath9k_htc_ps_restore(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static int ath9k_htc_config(struct ieee80211_hw *hw, u32 changed) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| struct ath_common *common = ath9k_hw_common(priv->ah); |
| struct ieee80211_conf *conf = &hw->conf; |
| |
| mutex_lock(&priv->mutex); |
| |
| if (changed & IEEE80211_CONF_CHANGE_IDLE) { |
| bool enable_radio = false; |
| bool idle = !!(conf->flags & IEEE80211_CONF_IDLE); |
| |
| mutex_lock(&priv->htc_pm_lock); |
| if (!idle && priv->ps_idle) |
| enable_radio = true; |
| priv->ps_idle = idle; |
| mutex_unlock(&priv->htc_pm_lock); |
| |
| if (enable_radio) { |
| ath_print(common, ATH_DBG_CONFIG, |
| "not-idle: enabling radio\n"); |
| ath9k_htc_setpower(priv, ATH9K_PM_AWAKE); |
| ath9k_htc_radio_enable(hw); |
| } |
| } |
| |
| if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { |
| struct ieee80211_channel *curchan = hw->conf.channel; |
| int pos = curchan->hw_value; |
| |
| ath_print(common, ATH_DBG_CONFIG, "Set channel: %d MHz\n", |
| curchan->center_freq); |
| |
| ath9k_cmn_update_ichannel(hw, &priv->ah->channels[pos]); |
| |
| if (ath9k_htc_set_channel(priv, hw, &priv->ah->channels[pos]) < 0) { |
| ath_print(common, ATH_DBG_FATAL, |
| "Unable to set channel\n"); |
| mutex_unlock(&priv->mutex); |
| return -EINVAL; |
| } |
| |
| } |
| if (changed & IEEE80211_CONF_CHANGE_PS) { |
| if (conf->flags & IEEE80211_CONF_PS) { |
| ath9k_htc_setpower(priv, ATH9K_PM_NETWORK_SLEEP); |
| priv->ps_enabled = true; |
| } else { |
| priv->ps_enabled = false; |
| cancel_work_sync(&priv->ps_work); |
| ath9k_htc_setpower(priv, ATH9K_PM_AWAKE); |
| } |
| } |
| |
| if (changed & IEEE80211_CONF_CHANGE_MONITOR) { |
| if (conf->flags & IEEE80211_CONF_MONITOR) { |
| if (ath9k_htc_add_monitor_interface(priv)) |
| ath_print(common, ATH_DBG_FATAL, |
| "Failed to set monitor mode\n"); |
| else |
| ath_print(common, ATH_DBG_CONFIG, |
| "HW opmode set to Monitor mode\n"); |
| } |
| } |
| |
| if (changed & IEEE80211_CONF_CHANGE_IDLE) { |
| mutex_lock(&priv->htc_pm_lock); |
| if (!priv->ps_idle) { |
| mutex_unlock(&priv->htc_pm_lock); |
| goto out; |
| } |
| mutex_unlock(&priv->htc_pm_lock); |
| |
| ath_print(common, ATH_DBG_CONFIG, |
| "idle: disabling radio\n"); |
| ath9k_htc_radio_disable(hw); |
| } |
| |
| out: |
| mutex_unlock(&priv->mutex); |
| return 0; |
| } |
| |
| #define SUPPORTED_FILTERS \ |
| (FIF_PROMISC_IN_BSS | \ |
| FIF_ALLMULTI | \ |
| FIF_CONTROL | \ |
| FIF_PSPOLL | \ |
| FIF_OTHER_BSS | \ |
| FIF_BCN_PRBRESP_PROMISC | \ |
| FIF_FCSFAIL) |
| |
| static void ath9k_htc_configure_filter(struct ieee80211_hw *hw, |
| unsigned int changed_flags, |
| unsigned int *total_flags, |
| u64 multicast) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| u32 rfilt; |
| |
| mutex_lock(&priv->mutex); |
| ath9k_htc_ps_wakeup(priv); |
| |
| changed_flags &= SUPPORTED_FILTERS; |
| *total_flags &= SUPPORTED_FILTERS; |
| |
| priv->rxfilter = *total_flags; |
| rfilt = ath9k_htc_calcrxfilter(priv); |
| ath9k_hw_setrxfilter(priv->ah, rfilt); |
| |
| ath_print(ath9k_hw_common(priv->ah), ATH_DBG_CONFIG, |
| "Set HW RX filter: 0x%x\n", rfilt); |
| |
| ath9k_htc_ps_restore(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static int ath9k_htc_sta_add(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| int ret; |
| |
| mutex_lock(&priv->mutex); |
| ath9k_htc_ps_wakeup(priv); |
| ret = ath9k_htc_add_station(priv, vif, sta); |
| if (!ret) |
| ath9k_htc_init_rate(priv, sta); |
| ath9k_htc_ps_restore(priv); |
| mutex_unlock(&priv->mutex); |
| |
| return ret; |
| } |
| |
| static int ath9k_htc_sta_remove(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| int ret; |
| |
| mutex_lock(&priv->mutex); |
| ath9k_htc_ps_wakeup(priv); |
| ret = ath9k_htc_remove_station(priv, vif, sta); |
| ath9k_htc_ps_restore(priv); |
| mutex_unlock(&priv->mutex); |
| |
| return ret; |
| } |
| |
| static int ath9k_htc_conf_tx(struct ieee80211_hw *hw, u16 queue, |
| const struct ieee80211_tx_queue_params *params) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| struct ath_common *common = ath9k_hw_common(priv->ah); |
| struct ath9k_tx_queue_info qi; |
| int ret = 0, qnum; |
| |
| if (queue >= WME_NUM_AC) |
| return 0; |
| |
| mutex_lock(&priv->mutex); |
| ath9k_htc_ps_wakeup(priv); |
| |
| memset(&qi, 0, sizeof(struct ath9k_tx_queue_info)); |
| |
| qi.tqi_aifs = params->aifs; |
| qi.tqi_cwmin = params->cw_min; |
| qi.tqi_cwmax = params->cw_max; |
| qi.tqi_burstTime = params->txop; |
| |
| qnum = get_hw_qnum(queue, priv->hwq_map); |
| |
| ath_print(common, ATH_DBG_CONFIG, |
| "Configure tx [queue/hwq] [%d/%d], " |
| "aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n", |
| queue, qnum, params->aifs, params->cw_min, |
| params->cw_max, params->txop); |
| |
| ret = ath_htc_txq_update(priv, qnum, &qi); |
| if (ret) { |
| ath_print(common, ATH_DBG_FATAL, "TXQ Update failed\n"); |
| goto out; |
| } |
| |
| if ((priv->ah->opmode == NL80211_IFTYPE_ADHOC) && |
| (qnum == priv->hwq_map[WME_AC_BE])) |
| ath9k_htc_beaconq_config(priv); |
| out: |
| ath9k_htc_ps_restore(priv); |
| mutex_unlock(&priv->mutex); |
| |
| return ret; |
| } |
| |
| static int ath9k_htc_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 ath9k_htc_priv *priv = hw->priv; |
| struct ath_common *common = ath9k_hw_common(priv->ah); |
| int ret = 0; |
| |
| if (htc_modparam_nohwcrypt) |
| return -ENOSPC; |
| |
| mutex_lock(&priv->mutex); |
| ath_print(common, ATH_DBG_CONFIG, "Set HW Key\n"); |
| ath9k_htc_ps_wakeup(priv); |
| |
| switch (cmd) { |
| case SET_KEY: |
| ret = ath9k_cmn_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->alg == ALG_TKIP) |
| key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC; |
| if (priv->ah->sw_mgmt_crypto && key->alg == ALG_CCMP) |
| key->flags |= IEEE80211_KEY_FLAG_SW_MGMT; |
| ret = 0; |
| } |
| break; |
| case DISABLE_KEY: |
| ath9k_cmn_key_delete(common, key); |
| break; |
| default: |
| ret = -EINVAL; |
| } |
| |
| ath9k_htc_ps_restore(priv); |
| mutex_unlock(&priv->mutex); |
| |
| return ret; |
| } |
| |
| static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_bss_conf *bss_conf, |
| u32 changed) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| struct ath_hw *ah = priv->ah; |
| struct ath_common *common = ath9k_hw_common(ah); |
| |
| mutex_lock(&priv->mutex); |
| ath9k_htc_ps_wakeup(priv); |
| |
| if (changed & BSS_CHANGED_ASSOC) { |
| common->curaid = bss_conf->assoc ? |
| bss_conf->aid : 0; |
| ath_print(common, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n", |
| bss_conf->assoc); |
| |
| if (bss_conf->assoc) { |
| priv->op_flags |= OP_ASSOCIATED; |
| ath_start_ani(priv); |
| } else { |
| priv->op_flags &= ~OP_ASSOCIATED; |
| cancel_delayed_work_sync(&priv->ath9k_ani_work); |
| } |
| } |
| |
| if (changed & BSS_CHANGED_BSSID) { |
| /* Set BSSID */ |
| memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN); |
| ath9k_hw_write_associd(ah); |
| |
| ath_print(common, ATH_DBG_CONFIG, |
| "BSSID: %pM aid: 0x%x\n", |
| common->curbssid, common->curaid); |
| } |
| |
| if ((changed & BSS_CHANGED_BEACON_INT) || |
| (changed & BSS_CHANGED_BEACON) || |
| ((changed & BSS_CHANGED_BEACON_ENABLED) && |
| bss_conf->enable_beacon)) { |
| priv->op_flags |= OP_ENABLE_BEACON; |
| ath9k_htc_beacon_config(priv, vif); |
| } |
| |
| if ((changed & BSS_CHANGED_BEACON_ENABLED) && |
| !bss_conf->enable_beacon) { |
| priv->op_flags &= ~OP_ENABLE_BEACON; |
| ath9k_htc_beacon_config(priv, vif); |
| } |
| |
| if (changed & BSS_CHANGED_ERP_PREAMBLE) { |
| ath_print(common, ATH_DBG_CONFIG, "BSS Changed PREAMBLE %d\n", |
| bss_conf->use_short_preamble); |
| if (bss_conf->use_short_preamble) |
| priv->op_flags |= OP_PREAMBLE_SHORT; |
| else |
| priv->op_flags &= ~OP_PREAMBLE_SHORT; |
| } |
| |
| if (changed & BSS_CHANGED_ERP_CTS_PROT) { |
| ath_print(common, ATH_DBG_CONFIG, "BSS Changed CTS PROT %d\n", |
| bss_conf->use_cts_prot); |
| if (bss_conf->use_cts_prot && |
| hw->conf.channel->band != IEEE80211_BAND_5GHZ) |
| priv->op_flags |= OP_PROTECT_ENABLE; |
| else |
| priv->op_flags &= ~OP_PROTECT_ENABLE; |
| } |
| |
| if (changed & BSS_CHANGED_ERP_SLOT) { |
| if (bss_conf->use_short_slot) |
| ah->slottime = 9; |
| else |
| ah->slottime = 20; |
| |
| ath9k_hw_init_global_settings(ah); |
| } |
| |
| if (changed & BSS_CHANGED_HT) |
| ath9k_htc_update_rate(priv, vif, bss_conf); |
| |
| ath9k_htc_ps_restore(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static u64 ath9k_htc_get_tsf(struct ieee80211_hw *hw) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| u64 tsf; |
| |
| mutex_lock(&priv->mutex); |
| ath9k_htc_ps_wakeup(priv); |
| tsf = ath9k_hw_gettsf64(priv->ah); |
| ath9k_htc_ps_restore(priv); |
| mutex_unlock(&priv->mutex); |
| |
| return tsf; |
| } |
| |
| static void ath9k_htc_set_tsf(struct ieee80211_hw *hw, u64 tsf) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| |
| mutex_lock(&priv->mutex); |
| ath9k_htc_ps_wakeup(priv); |
| ath9k_hw_settsf64(priv->ah, tsf); |
| ath9k_htc_ps_restore(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static void ath9k_htc_reset_tsf(struct ieee80211_hw *hw) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| |
| mutex_lock(&priv->mutex); |
| ath9k_htc_ps_wakeup(priv); |
| ath9k_hw_reset_tsf(priv->ah); |
| ath9k_htc_ps_restore(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static int ath9k_htc_ampdu_action(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| enum ieee80211_ampdu_mlme_action action, |
| struct ieee80211_sta *sta, |
| u16 tid, u16 *ssn) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| struct ath9k_htc_sta *ista; |
| int ret = 0; |
| |
| switch (action) { |
| case IEEE80211_AMPDU_RX_START: |
| break; |
| case IEEE80211_AMPDU_RX_STOP: |
| break; |
| case IEEE80211_AMPDU_TX_START: |
| ret = ath9k_htc_tx_aggr_oper(priv, vif, sta, action, tid); |
| if (!ret) |
| ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); |
| break; |
| case IEEE80211_AMPDU_TX_STOP: |
| ath9k_htc_tx_aggr_oper(priv, vif, sta, action, tid); |
| ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); |
| break; |
| case IEEE80211_AMPDU_TX_OPERATIONAL: |
| ista = (struct ath9k_htc_sta *) sta->drv_priv; |
| spin_lock_bh(&priv->tx_lock); |
| ista->tid_state[tid] = AGGR_OPERATIONAL; |
| spin_unlock_bh(&priv->tx_lock); |
| break; |
| default: |
| ath_print(ath9k_hw_common(priv->ah), ATH_DBG_FATAL, |
| "Unknown AMPDU action\n"); |
| } |
| |
| return ret; |
| } |
| |
| static void ath9k_htc_sw_scan_start(struct ieee80211_hw *hw) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| |
| mutex_lock(&priv->mutex); |
| spin_lock_bh(&priv->beacon_lock); |
| priv->op_flags |= OP_SCANNING; |
| spin_unlock_bh(&priv->beacon_lock); |
| cancel_work_sync(&priv->ps_work); |
| cancel_delayed_work_sync(&priv->ath9k_ani_work); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static void ath9k_htc_sw_scan_complete(struct ieee80211_hw *hw) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| |
| mutex_lock(&priv->mutex); |
| ath9k_htc_ps_wakeup(priv); |
| spin_lock_bh(&priv->beacon_lock); |
| priv->op_flags &= ~OP_SCANNING; |
| spin_unlock_bh(&priv->beacon_lock); |
| priv->op_flags |= OP_FULL_RESET; |
| if (priv->op_flags & OP_ASSOCIATED) |
| ath9k_htc_beacon_config(priv, priv->vif); |
| ath_start_ani(priv); |
| ath9k_htc_ps_restore(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| static int ath9k_htc_set_rts_threshold(struct ieee80211_hw *hw, u32 value) |
| { |
| return 0; |
| } |
| |
| static void ath9k_htc_set_coverage_class(struct ieee80211_hw *hw, |
| u8 coverage_class) |
| { |
| struct ath9k_htc_priv *priv = hw->priv; |
| |
| mutex_lock(&priv->mutex); |
| ath9k_htc_ps_wakeup(priv); |
| priv->ah->coverage_class = coverage_class; |
| ath9k_hw_init_global_settings(priv->ah); |
| ath9k_htc_ps_restore(priv); |
| mutex_unlock(&priv->mutex); |
| } |
| |
| struct ieee80211_ops ath9k_htc_ops = { |
| .tx = ath9k_htc_tx, |
| .start = ath9k_htc_start, |
| .stop = ath9k_htc_stop, |
| .add_interface = ath9k_htc_add_interface, |
| .remove_interface = ath9k_htc_remove_interface, |
| .config = ath9k_htc_config, |
| .configure_filter = ath9k_htc_configure_filter, |
| .sta_add = ath9k_htc_sta_add, |
| .sta_remove = ath9k_htc_sta_remove, |
| .conf_tx = ath9k_htc_conf_tx, |
| .bss_info_changed = ath9k_htc_bss_info_changed, |
| .set_key = ath9k_htc_set_key, |
| .get_tsf = ath9k_htc_get_tsf, |
| .set_tsf = ath9k_htc_set_tsf, |
| .reset_tsf = ath9k_htc_reset_tsf, |
| .ampdu_action = ath9k_htc_ampdu_action, |
| .sw_scan_start = ath9k_htc_sw_scan_start, |
| .sw_scan_complete = ath9k_htc_sw_scan_complete, |
| .set_rts_threshold = ath9k_htc_set_rts_threshold, |
| .rfkill_poll = ath9k_htc_rfkill_poll_state, |
| .set_coverage_class = ath9k_htc_set_coverage_class, |
| }; |