| /** |
| * Copyright (c) 2014 Redpine Signals Inc. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #include <linux/etherdevice.h> |
| #include "rsi_debugfs.h" |
| #include "rsi_mgmt.h" |
| #include "rsi_sdio.h" |
| #include "rsi_common.h" |
| #include "rsi_ps.h" |
| |
| static const struct ieee80211_channel rsi_2ghz_channels[] = { |
| { .band = NL80211_BAND_2GHZ, .center_freq = 2412, |
| .hw_value = 1 }, /* Channel 1 */ |
| { .band = NL80211_BAND_2GHZ, .center_freq = 2417, |
| .hw_value = 2 }, /* Channel 2 */ |
| { .band = NL80211_BAND_2GHZ, .center_freq = 2422, |
| .hw_value = 3 }, /* Channel 3 */ |
| { .band = NL80211_BAND_2GHZ, .center_freq = 2427, |
| .hw_value = 4 }, /* Channel 4 */ |
| { .band = NL80211_BAND_2GHZ, .center_freq = 2432, |
| .hw_value = 5 }, /* Channel 5 */ |
| { .band = NL80211_BAND_2GHZ, .center_freq = 2437, |
| .hw_value = 6 }, /* Channel 6 */ |
| { .band = NL80211_BAND_2GHZ, .center_freq = 2442, |
| .hw_value = 7 }, /* Channel 7 */ |
| { .band = NL80211_BAND_2GHZ, .center_freq = 2447, |
| .hw_value = 8 }, /* Channel 8 */ |
| { .band = NL80211_BAND_2GHZ, .center_freq = 2452, |
| .hw_value = 9 }, /* Channel 9 */ |
| { .band = NL80211_BAND_2GHZ, .center_freq = 2457, |
| .hw_value = 10 }, /* Channel 10 */ |
| { .band = NL80211_BAND_2GHZ, .center_freq = 2462, |
| .hw_value = 11 }, /* Channel 11 */ |
| { .band = NL80211_BAND_2GHZ, .center_freq = 2467, |
| .hw_value = 12 }, /* Channel 12 */ |
| { .band = NL80211_BAND_2GHZ, .center_freq = 2472, |
| .hw_value = 13 }, /* Channel 13 */ |
| { .band = NL80211_BAND_2GHZ, .center_freq = 2484, |
| .hw_value = 14 }, /* Channel 14 */ |
| }; |
| |
| static const struct ieee80211_channel rsi_5ghz_channels[] = { |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5180, |
| .hw_value = 36, }, /* Channel 36 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5200, |
| .hw_value = 40, }, /* Channel 40 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5220, |
| .hw_value = 44, }, /* Channel 44 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5240, |
| .hw_value = 48, }, /* Channel 48 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5260, |
| .hw_value = 52, }, /* Channel 52 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5280, |
| .hw_value = 56, }, /* Channel 56 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5300, |
| .hw_value = 60, }, /* Channel 60 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5320, |
| .hw_value = 64, }, /* Channel 64 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5500, |
| .hw_value = 100, }, /* Channel 100 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5520, |
| .hw_value = 104, }, /* Channel 104 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5540, |
| .hw_value = 108, }, /* Channel 108 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5560, |
| .hw_value = 112, }, /* Channel 112 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5580, |
| .hw_value = 116, }, /* Channel 116 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5600, |
| .hw_value = 120, }, /* Channel 120 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5620, |
| .hw_value = 124, }, /* Channel 124 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5640, |
| .hw_value = 128, }, /* Channel 128 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5660, |
| .hw_value = 132, }, /* Channel 132 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5680, |
| .hw_value = 136, }, /* Channel 136 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5700, |
| .hw_value = 140, }, /* Channel 140 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5745, |
| .hw_value = 149, }, /* Channel 149 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5765, |
| .hw_value = 153, }, /* Channel 153 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5785, |
| .hw_value = 157, }, /* Channel 157 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5805, |
| .hw_value = 161, }, /* Channel 161 */ |
| { .band = NL80211_BAND_5GHZ, .center_freq = 5825, |
| .hw_value = 165, }, /* Channel 165 */ |
| }; |
| |
| struct ieee80211_rate rsi_rates[12] = { |
| { .bitrate = STD_RATE_01 * 5, .hw_value = RSI_RATE_1 }, |
| { .bitrate = STD_RATE_02 * 5, .hw_value = RSI_RATE_2 }, |
| { .bitrate = STD_RATE_5_5 * 5, .hw_value = RSI_RATE_5_5 }, |
| { .bitrate = STD_RATE_11 * 5, .hw_value = RSI_RATE_11 }, |
| { .bitrate = STD_RATE_06 * 5, .hw_value = RSI_RATE_6 }, |
| { .bitrate = STD_RATE_09 * 5, .hw_value = RSI_RATE_9 }, |
| { .bitrate = STD_RATE_12 * 5, .hw_value = RSI_RATE_12 }, |
| { .bitrate = STD_RATE_18 * 5, .hw_value = RSI_RATE_18 }, |
| { .bitrate = STD_RATE_24 * 5, .hw_value = RSI_RATE_24 }, |
| { .bitrate = STD_RATE_36 * 5, .hw_value = RSI_RATE_36 }, |
| { .bitrate = STD_RATE_48 * 5, .hw_value = RSI_RATE_48 }, |
| { .bitrate = STD_RATE_54 * 5, .hw_value = RSI_RATE_54 }, |
| }; |
| |
| const u16 rsi_mcsrates[8] = { |
| RSI_RATE_MCS0, RSI_RATE_MCS1, RSI_RATE_MCS2, RSI_RATE_MCS3, |
| RSI_RATE_MCS4, RSI_RATE_MCS5, RSI_RATE_MCS6, RSI_RATE_MCS7 |
| }; |
| |
| static const u32 rsi_max_ap_stas[16] = { |
| 32, /* 1 - Wi-Fi alone */ |
| 0, /* 2 */ |
| 0, /* 3 */ |
| 0, /* 4 - BT EDR alone */ |
| 4, /* 5 - STA + BT EDR */ |
| 32, /* 6 - AP + BT EDR */ |
| 0, /* 7 */ |
| 0, /* 8 - BT LE alone */ |
| 4, /* 9 - STA + BE LE */ |
| 0, /* 10 */ |
| 0, /* 11 */ |
| 0, /* 12 */ |
| 1, /* 13 - STA + BT Dual */ |
| 4, /* 14 - AP + BT Dual */ |
| }; |
| |
| static const struct ieee80211_iface_limit rsi_iface_limits[] = { |
| { |
| .max = 1, |
| .types = BIT(NL80211_IFTYPE_STATION), |
| }, |
| { |
| .max = 1, |
| .types = BIT(NL80211_IFTYPE_AP) | |
| BIT(NL80211_IFTYPE_P2P_CLIENT) | |
| BIT(NL80211_IFTYPE_P2P_GO), |
| }, |
| { |
| .max = 1, |
| .types = BIT(NL80211_IFTYPE_P2P_DEVICE), |
| }, |
| }; |
| |
| static const struct ieee80211_iface_combination rsi_iface_combinations[] = { |
| { |
| .num_different_channels = 1, |
| .max_interfaces = 3, |
| .limits = rsi_iface_limits, |
| .n_limits = ARRAY_SIZE(rsi_iface_limits), |
| }, |
| }; |
| |
| /** |
| * rsi_is_cipher_wep() - This function determines if the cipher is WEP or not. |
| * @common: Pointer to the driver private structure. |
| * |
| * Return: If cipher type is WEP, a value of 1 is returned, else 0. |
| */ |
| |
| bool rsi_is_cipher_wep(struct rsi_common *common) |
| { |
| if (((common->secinfo.gtk_cipher == WLAN_CIPHER_SUITE_WEP104) || |
| (common->secinfo.gtk_cipher == WLAN_CIPHER_SUITE_WEP40)) && |
| (!common->secinfo.ptk_cipher)) |
| return true; |
| else |
| return false; |
| } |
| |
| /** |
| * rsi_register_rates_channels() - This function registers channels and rates. |
| * @adapter: Pointer to the adapter structure. |
| * @band: Operating band to be set. |
| * |
| * Return: int - 0 on success, negative error on failure. |
| */ |
| static int rsi_register_rates_channels(struct rsi_hw *adapter, int band) |
| { |
| struct ieee80211_supported_band *sbands = &adapter->sbands[band]; |
| void *channels = NULL; |
| |
| if (band == NL80211_BAND_2GHZ) { |
| channels = kmemdup(rsi_2ghz_channels, sizeof(rsi_2ghz_channels), |
| GFP_KERNEL); |
| if (!channels) |
| return -ENOMEM; |
| sbands->band = NL80211_BAND_2GHZ; |
| sbands->n_channels = ARRAY_SIZE(rsi_2ghz_channels); |
| sbands->bitrates = rsi_rates; |
| sbands->n_bitrates = ARRAY_SIZE(rsi_rates); |
| } else { |
| channels = kmemdup(rsi_5ghz_channels, sizeof(rsi_5ghz_channels), |
| GFP_KERNEL); |
| if (!channels) |
| return -ENOMEM; |
| sbands->band = NL80211_BAND_5GHZ; |
| sbands->n_channels = ARRAY_SIZE(rsi_5ghz_channels); |
| sbands->bitrates = &rsi_rates[4]; |
| sbands->n_bitrates = ARRAY_SIZE(rsi_rates) - 4; |
| } |
| |
| sbands->channels = channels; |
| |
| memset(&sbands->ht_cap, 0, sizeof(struct ieee80211_sta_ht_cap)); |
| sbands->ht_cap.ht_supported = true; |
| sbands->ht_cap.cap = (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | |
| IEEE80211_HT_CAP_SGI_20 | |
| IEEE80211_HT_CAP_SGI_40); |
| sbands->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K; |
| sbands->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; |
| sbands->ht_cap.mcs.rx_mask[0] = 0xff; |
| sbands->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; |
| /* sbands->ht_cap.mcs.rx_highest = 0x82; */ |
| return 0; |
| } |
| |
| static int rsi_mac80211_hw_scan_start(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_scan_request *hw_req) |
| { |
| struct cfg80211_scan_request *scan_req = &hw_req->req; |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| struct ieee80211_bss_conf *bss = &vif->bss_conf; |
| |
| rsi_dbg(INFO_ZONE, "***** Hardware scan start *****\n"); |
| common->mac_ops_resumed = false; |
| |
| if (common->fsm_state != FSM_MAC_INIT_DONE) |
| return -ENODEV; |
| |
| if ((common->wow_flags & RSI_WOW_ENABLED) || |
| scan_req->n_channels == 0) |
| return -EINVAL; |
| |
| /* Scan already in progress. So return */ |
| if (common->bgscan_en) |
| return -EBUSY; |
| |
| /* If STA is not connected, return with special value 1, in order |
| * to start sw_scan in mac80211 |
| */ |
| if (!bss->assoc) |
| return 1; |
| |
| mutex_lock(&common->mutex); |
| common->hwscan = scan_req; |
| if (!rsi_send_bgscan_params(common, RSI_START_BGSCAN)) { |
| if (!rsi_send_bgscan_probe_req(common, vif)) { |
| rsi_dbg(INFO_ZONE, "Background scan started...\n"); |
| common->bgscan_en = true; |
| } |
| } |
| mutex_unlock(&common->mutex); |
| |
| return 0; |
| } |
| |
| static void rsi_mac80211_cancel_hw_scan(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| struct cfg80211_scan_info info; |
| |
| rsi_dbg(INFO_ZONE, "***** Hardware scan stop *****\n"); |
| mutex_lock(&common->mutex); |
| |
| if (common->bgscan_en) { |
| if (!rsi_send_bgscan_params(common, RSI_STOP_BGSCAN)) |
| common->bgscan_en = false; |
| info.aborted = false; |
| ieee80211_scan_completed(adapter->hw, &info); |
| rsi_dbg(INFO_ZONE, "Back ground scan cancelled\n"); |
| } |
| common->hwscan = NULL; |
| mutex_unlock(&common->mutex); |
| } |
| |
| /** |
| * rsi_mac80211_detach() - This function is used to de-initialize the |
| * Mac80211 stack. |
| * @adapter: Pointer to the adapter structure. |
| * |
| * Return: None. |
| */ |
| void rsi_mac80211_detach(struct rsi_hw *adapter) |
| { |
| struct ieee80211_hw *hw = adapter->hw; |
| enum nl80211_band band; |
| |
| if (hw) { |
| ieee80211_stop_queues(hw); |
| ieee80211_unregister_hw(hw); |
| ieee80211_free_hw(hw); |
| adapter->hw = NULL; |
| } |
| |
| for (band = 0; band < NUM_NL80211_BANDS; band++) { |
| struct ieee80211_supported_band *sband = |
| &adapter->sbands[band]; |
| |
| kfree(sband->channels); |
| } |
| |
| #ifdef CONFIG_RSI_DEBUGFS |
| rsi_remove_dbgfs(adapter); |
| kfree(adapter->dfsentry); |
| #endif |
| } |
| EXPORT_SYMBOL_GPL(rsi_mac80211_detach); |
| |
| /** |
| * rsi_indicate_tx_status() - This function indicates the transmit status. |
| * @adapter: Pointer to the adapter structure. |
| * @skb: Pointer to the socket buffer structure. |
| * @status: Status |
| * |
| * Return: None. |
| */ |
| void rsi_indicate_tx_status(struct rsi_hw *adapter, |
| struct sk_buff *skb, |
| int status) |
| { |
| struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
| struct skb_info *tx_params; |
| |
| if (!adapter->hw) { |
| rsi_dbg(ERR_ZONE, "##### No MAC #####\n"); |
| return; |
| } |
| |
| if (!status) |
| info->flags |= IEEE80211_TX_STAT_ACK; |
| |
| tx_params = (struct skb_info *)info->driver_data; |
| skb_pull(skb, tx_params->internal_hdr_size); |
| memset(info->driver_data, 0, IEEE80211_TX_INFO_DRIVER_DATA_SIZE); |
| |
| ieee80211_tx_status_irqsafe(adapter->hw, skb); |
| } |
| |
| /** |
| * rsi_mac80211_tx() - This is the handler that 802.11 module calls for each |
| * transmitted frame.SKB contains the buffer starting |
| * from the IEEE 802.11 header. |
| * @hw: Pointer to the ieee80211_hw structure. |
| * @control: Pointer to the ieee80211_tx_control structure |
| * @skb: Pointer to the socket buffer structure. |
| * |
| * Return: None |
| */ |
| static void rsi_mac80211_tx(struct ieee80211_hw *hw, |
| struct ieee80211_tx_control *control, |
| struct sk_buff *skb) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| struct ieee80211_hdr *wlh = (struct ieee80211_hdr *)skb->data; |
| |
| if (ieee80211_is_auth(wlh->frame_control)) |
| common->mac_ops_resumed = false; |
| |
| rsi_core_xmit(common, skb); |
| } |
| |
| /** |
| * rsi_mac80211_start() - This is first handler that 802.11 module calls, since |
| * the driver init is complete by then, just |
| * returns success. |
| * @hw: Pointer to the ieee80211_hw structure. |
| * |
| * Return: 0 as success. |
| */ |
| static int rsi_mac80211_start(struct ieee80211_hw *hw) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| |
| rsi_dbg(ERR_ZONE, "===> Interface UP <===\n"); |
| mutex_lock(&common->mutex); |
| if (common->hibernate_resume) { |
| common->reinit_hw = true; |
| adapter->host_intf_ops->reinit_device(adapter); |
| wait_for_completion(&adapter->priv->wlan_init_completion); |
| } |
| common->iface_down = false; |
| wiphy_rfkill_start_polling(hw->wiphy); |
| rsi_send_rx_filter_frame(common, 0); |
| mutex_unlock(&common->mutex); |
| |
| return 0; |
| } |
| |
| /** |
| * rsi_mac80211_stop() - This is the last handler that 802.11 module calls. |
| * @hw: Pointer to the ieee80211_hw structure. |
| * |
| * Return: None. |
| */ |
| static void rsi_mac80211_stop(struct ieee80211_hw *hw) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| |
| rsi_dbg(ERR_ZONE, "===> Interface DOWN <===\n"); |
| mutex_lock(&common->mutex); |
| common->iface_down = true; |
| wiphy_rfkill_stop_polling(hw->wiphy); |
| |
| /* Block all rx frames */ |
| rsi_send_rx_filter_frame(common, 0xffff); |
| |
| mutex_unlock(&common->mutex); |
| } |
| |
| static int rsi_map_intf_mode(enum nl80211_iftype vif_type) |
| { |
| switch (vif_type) { |
| case NL80211_IFTYPE_STATION: |
| return RSI_OPMODE_STA; |
| case NL80211_IFTYPE_AP: |
| return RSI_OPMODE_AP; |
| case NL80211_IFTYPE_P2P_DEVICE: |
| return RSI_OPMODE_P2P_CLIENT; |
| case NL80211_IFTYPE_P2P_CLIENT: |
| return RSI_OPMODE_P2P_CLIENT; |
| case NL80211_IFTYPE_P2P_GO: |
| return RSI_OPMODE_P2P_GO; |
| default: |
| return RSI_OPMODE_UNSUPPORTED; |
| } |
| } |
| |
| /** |
| * rsi_mac80211_add_interface() - This function is called when a netdevice |
| * attached to the hardware is enabled. |
| * @hw: Pointer to the ieee80211_hw structure. |
| * @vif: Pointer to the ieee80211_vif structure. |
| * |
| * Return: ret: 0 on success, negative error code on failure. |
| */ |
| static int rsi_mac80211_add_interface(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| struct vif_priv *vif_info = (struct vif_priv *)vif->drv_priv; |
| enum opmode intf_mode; |
| enum vap_status vap_status; |
| int vap_idx = -1, i; |
| |
| vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; |
| mutex_lock(&common->mutex); |
| |
| intf_mode = rsi_map_intf_mode(vif->type); |
| if (intf_mode == RSI_OPMODE_UNSUPPORTED) { |
| rsi_dbg(ERR_ZONE, |
| "%s: Interface type %d not supported\n", __func__, |
| vif->type); |
| mutex_unlock(&common->mutex); |
| return -EOPNOTSUPP; |
| } |
| if ((vif->type == NL80211_IFTYPE_P2P_DEVICE) || |
| (vif->type == NL80211_IFTYPE_P2P_CLIENT) || |
| (vif->type == NL80211_IFTYPE_P2P_GO)) |
| common->p2p_enabled = true; |
| |
| /* Get free vap index */ |
| for (i = 0; i < RSI_MAX_VIFS; i++) { |
| if (!adapter->vifs[i] || |
| !memcmp(vif->addr, adapter->vifs[i]->addr, ETH_ALEN)) { |
| vap_idx = i; |
| break; |
| } |
| } |
| if (vap_idx < 0) { |
| rsi_dbg(ERR_ZONE, "Reject: Max VAPs reached\n"); |
| mutex_unlock(&common->mutex); |
| return -EOPNOTSUPP; |
| } |
| vif_info->vap_id = vap_idx; |
| adapter->vifs[vap_idx] = vif; |
| adapter->sc_nvifs++; |
| vap_status = VAP_ADD; |
| |
| if (rsi_set_vap_capabilities(common, intf_mode, vif->addr, |
| vif_info->vap_id, vap_status)) { |
| rsi_dbg(ERR_ZONE, "Failed to set VAP capabilities\n"); |
| mutex_unlock(&common->mutex); |
| return -EINVAL; |
| } |
| |
| if ((vif->type == NL80211_IFTYPE_AP) || |
| (vif->type == NL80211_IFTYPE_P2P_GO)) { |
| rsi_send_rx_filter_frame(common, DISALLOW_BEACONS); |
| common->min_rate = RSI_RATE_AUTO; |
| for (i = 0; i < common->max_stations; i++) |
| common->stations[i].sta = NULL; |
| } |
| |
| mutex_unlock(&common->mutex); |
| |
| return 0; |
| } |
| |
| /** |
| * rsi_mac80211_remove_interface() - This function notifies driver that an |
| * interface is going down. |
| * @hw: Pointer to the ieee80211_hw structure. |
| * @vif: Pointer to the ieee80211_vif structure. |
| * |
| * Return: None. |
| */ |
| static void rsi_mac80211_remove_interface(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| enum opmode opmode; |
| int i; |
| |
| rsi_dbg(INFO_ZONE, "Remove Interface Called\n"); |
| |
| mutex_lock(&common->mutex); |
| |
| if (adapter->sc_nvifs <= 0) { |
| mutex_unlock(&common->mutex); |
| return; |
| } |
| |
| opmode = rsi_map_intf_mode(vif->type); |
| if (opmode == RSI_OPMODE_UNSUPPORTED) { |
| rsi_dbg(ERR_ZONE, "Opmode error : %d\n", opmode); |
| mutex_unlock(&common->mutex); |
| return; |
| } |
| for (i = 0; i < RSI_MAX_VIFS; i++) { |
| if (!adapter->vifs[i]) |
| continue; |
| if (vif == adapter->vifs[i]) { |
| rsi_set_vap_capabilities(common, opmode, vif->addr, |
| i, VAP_DELETE); |
| adapter->sc_nvifs--; |
| adapter->vifs[i] = NULL; |
| } |
| } |
| mutex_unlock(&common->mutex); |
| } |
| |
| /** |
| * rsi_channel_change() - This function is a performs the checks |
| * required for changing a channel and sets |
| * the channel accordingly. |
| * @hw: Pointer to the ieee80211_hw structure. |
| * |
| * Return: 0 on success, negative error code on failure. |
| */ |
| static int rsi_channel_change(struct ieee80211_hw *hw) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| int status = -EOPNOTSUPP; |
| struct ieee80211_channel *curchan = hw->conf.chandef.chan; |
| u16 channel = curchan->hw_value; |
| struct ieee80211_vif *vif; |
| struct ieee80211_bss_conf *bss; |
| bool assoc = false; |
| int i; |
| |
| rsi_dbg(INFO_ZONE, |
| "%s: Set channel: %d MHz type: %d channel_no %d\n", |
| __func__, curchan->center_freq, |
| curchan->flags, channel); |
| |
| for (i = 0; i < RSI_MAX_VIFS; i++) { |
| vif = adapter->vifs[i]; |
| if (!vif) |
| continue; |
| if (vif->type == NL80211_IFTYPE_STATION) { |
| bss = &vif->bss_conf; |
| if (bss->assoc) { |
| assoc = true; |
| break; |
| } |
| } |
| } |
| if (assoc) { |
| if (!common->hw_data_qs_blocked && |
| (rsi_get_connected_channel(vif) != channel)) { |
| rsi_dbg(INFO_ZONE, "blk data q %d\n", channel); |
| if (!rsi_send_block_unblock_frame(common, true)) |
| common->hw_data_qs_blocked = true; |
| } |
| } |
| |
| status = rsi_band_check(common, curchan); |
| if (!status) |
| status = rsi_set_channel(adapter->priv, curchan); |
| |
| if (assoc) { |
| if (common->hw_data_qs_blocked && |
| (rsi_get_connected_channel(vif) == channel)) { |
| rsi_dbg(INFO_ZONE, "unblk data q %d\n", channel); |
| if (!rsi_send_block_unblock_frame(common, false)) |
| common->hw_data_qs_blocked = false; |
| } |
| } |
| |
| return status; |
| } |
| |
| /** |
| * rsi_config_power() - This function configures tx power to device |
| * @hw: Pointer to the ieee80211_hw structure. |
| * |
| * Return: 0 on success, negative error code on failure. |
| */ |
| static int rsi_config_power(struct ieee80211_hw *hw) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| struct ieee80211_conf *conf = &hw->conf; |
| |
| if (adapter->sc_nvifs <= 0) { |
| rsi_dbg(ERR_ZONE, "%s: No virtual interface found\n", __func__); |
| return -EINVAL; |
| } |
| |
| rsi_dbg(INFO_ZONE, |
| "%s: Set tx power: %d dBM\n", __func__, conf->power_level); |
| |
| if (conf->power_level == common->tx_power) |
| return 0; |
| |
| common->tx_power = conf->power_level; |
| |
| return rsi_send_radio_params_update(common); |
| } |
| |
| /** |
| * rsi_mac80211_config() - This function is a handler for configuration |
| * requests. The stack calls this function to |
| * change hardware configuration, e.g., channel. |
| * @hw: Pointer to the ieee80211_hw structure. |
| * @changed: Changed flags set. |
| * |
| * Return: 0 on success, negative error code on failure. |
| */ |
| static int rsi_mac80211_config(struct ieee80211_hw *hw, |
| u32 changed) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| struct ieee80211_conf *conf = &hw->conf; |
| int status = -EOPNOTSUPP; |
| |
| mutex_lock(&common->mutex); |
| |
| if (changed & IEEE80211_CONF_CHANGE_CHANNEL) |
| status = rsi_channel_change(hw); |
| |
| /* tx power */ |
| if (changed & IEEE80211_CONF_CHANGE_POWER) { |
| rsi_dbg(INFO_ZONE, "%s: Configuring Power\n", __func__); |
| status = rsi_config_power(hw); |
| } |
| |
| /* Power save parameters */ |
| if ((changed & IEEE80211_CONF_CHANGE_PS) && |
| !common->mac_ops_resumed) { |
| struct ieee80211_vif *vif, *sta_vif = NULL; |
| unsigned long flags; |
| int i, set_ps = 1; |
| |
| for (i = 0; i < RSI_MAX_VIFS; i++) { |
| vif = adapter->vifs[i]; |
| if (!vif) |
| continue; |
| /* Don't go to power save if AP vap exists */ |
| if ((vif->type == NL80211_IFTYPE_AP) || |
| (vif->type == NL80211_IFTYPE_P2P_GO)) { |
| set_ps = 0; |
| break; |
| } |
| if ((vif->type == NL80211_IFTYPE_STATION || |
| vif->type == NL80211_IFTYPE_P2P_CLIENT) && |
| (!sta_vif || vif->bss_conf.assoc)) |
| sta_vif = vif; |
| } |
| if (set_ps && sta_vif) { |
| spin_lock_irqsave(&adapter->ps_lock, flags); |
| if (conf->flags & IEEE80211_CONF_PS) |
| rsi_enable_ps(adapter, sta_vif); |
| else |
| rsi_disable_ps(adapter, sta_vif); |
| spin_unlock_irqrestore(&adapter->ps_lock, flags); |
| } |
| } |
| |
| /* RTS threshold */ |
| if (changed & WIPHY_PARAM_RTS_THRESHOLD) { |
| rsi_dbg(INFO_ZONE, "RTS threshold\n"); |
| if ((common->rts_threshold) <= IEEE80211_MAX_RTS_THRESHOLD) { |
| rsi_dbg(INFO_ZONE, |
| "%s: Sending vap updates....\n", __func__); |
| status = rsi_send_vap_dynamic_update(common); |
| } |
| } |
| mutex_unlock(&common->mutex); |
| |
| return status; |
| } |
| |
| /** |
| * rsi_get_connected_channel() - This function is used to get the current |
| * connected channel number. |
| * @adapter: Pointer to the adapter structure. |
| * |
| * Return: Current connected AP's channel number is returned. |
| */ |
| u16 rsi_get_connected_channel(struct ieee80211_vif *vif) |
| { |
| struct ieee80211_bss_conf *bss; |
| struct ieee80211_channel *channel; |
| |
| if (!vif) |
| return 0; |
| |
| bss = &vif->bss_conf; |
| channel = bss->chandef.chan; |
| |
| if (!channel) |
| return 0; |
| |
| return channel->hw_value; |
| } |
| |
| static void rsi_switch_channel(struct rsi_hw *adapter, |
| struct ieee80211_vif *vif) |
| { |
| struct rsi_common *common = adapter->priv; |
| struct ieee80211_channel *channel; |
| |
| if (common->iface_down) |
| return; |
| if (!vif) |
| return; |
| |
| channel = vif->bss_conf.chandef.chan; |
| |
| if (!channel) |
| return; |
| |
| rsi_band_check(common, channel); |
| rsi_set_channel(common, channel); |
| rsi_dbg(INFO_ZONE, "Switched to channel - %d\n", channel->hw_value); |
| } |
| |
| /** |
| * rsi_mac80211_bss_info_changed() - This function is a handler for config |
| * requests related to BSS parameters that |
| * may vary during BSS's lifespan. |
| * @hw: Pointer to the ieee80211_hw structure. |
| * @vif: Pointer to the ieee80211_vif structure. |
| * @bss_conf: Pointer to the ieee80211_bss_conf structure. |
| * @changed: Changed flags set. |
| * |
| * Return: None. |
| */ |
| static void rsi_mac80211_bss_info_changed(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_bss_conf *bss_conf, |
| u32 changed) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| struct ieee80211_bss_conf *bss = &vif->bss_conf; |
| struct ieee80211_conf *conf = &hw->conf; |
| u16 rx_filter_word = 0; |
| |
| mutex_lock(&common->mutex); |
| if (changed & BSS_CHANGED_ASSOC) { |
| rsi_dbg(INFO_ZONE, "%s: Changed Association status: %d\n", |
| __func__, bss_conf->assoc); |
| if (bss_conf->assoc) { |
| /* Send the RX filter frame */ |
| rx_filter_word = (ALLOW_DATA_ASSOC_PEER | |
| ALLOW_CTRL_ASSOC_PEER | |
| ALLOW_MGMT_ASSOC_PEER); |
| rsi_send_rx_filter_frame(common, rx_filter_word); |
| } |
| rsi_inform_bss_status(common, |
| RSI_OPMODE_STA, |
| bss_conf->assoc, |
| bss_conf->bssid, |
| bss_conf->qos, |
| bss_conf->aid, |
| NULL, 0, |
| bss_conf->assoc_capability, vif); |
| adapter->ps_info.dtim_interval_duration = bss->dtim_period; |
| adapter->ps_info.listen_interval = conf->listen_interval; |
| |
| /* If U-APSD is updated, send ps parameters to firmware */ |
| if (bss->assoc) { |
| if (common->uapsd_bitmap) { |
| rsi_dbg(INFO_ZONE, "Configuring UAPSD\n"); |
| rsi_conf_uapsd(adapter, vif); |
| } |
| } else { |
| common->uapsd_bitmap = 0; |
| } |
| } |
| |
| if (changed & BSS_CHANGED_CQM) { |
| common->cqm_info.last_cqm_event_rssi = 0; |
| common->cqm_info.rssi_thold = bss_conf->cqm_rssi_thold; |
| common->cqm_info.rssi_hyst = bss_conf->cqm_rssi_hyst; |
| rsi_dbg(INFO_ZONE, "RSSI threshold & hysteresis are: %d %d\n", |
| common->cqm_info.rssi_thold, |
| common->cqm_info.rssi_hyst); |
| } |
| |
| if ((changed & BSS_CHANGED_BEACON_ENABLED) && |
| ((vif->type == NL80211_IFTYPE_AP) || |
| (vif->type == NL80211_IFTYPE_P2P_GO))) { |
| if (bss->enable_beacon) { |
| rsi_dbg(INFO_ZONE, "===> BEACON ENABLED <===\n"); |
| common->beacon_enabled = 1; |
| } else { |
| rsi_dbg(INFO_ZONE, "===> BEACON DISABLED <===\n"); |
| common->beacon_enabled = 0; |
| } |
| } |
| |
| mutex_unlock(&common->mutex); |
| } |
| |
| /** |
| * rsi_mac80211_conf_filter() - This function configure the device's RX filter. |
| * @hw: Pointer to the ieee80211_hw structure. |
| * @changed: Changed flags set. |
| * @total_flags: Total initial flags set. |
| * @multicast: Multicast. |
| * |
| * Return: None. |
| */ |
| static void rsi_mac80211_conf_filter(struct ieee80211_hw *hw, |
| u32 changed_flags, |
| u32 *total_flags, |
| u64 multicast) |
| { |
| /* Not doing much here as of now */ |
| *total_flags &= RSI_SUPP_FILTERS; |
| } |
| |
| /** |
| * rsi_mac80211_conf_tx() - This function configures TX queue parameters |
| * (EDCF (aifs, cw_min, cw_max), bursting) |
| * for a hardware TX queue. |
| * @hw: Pointer to the ieee80211_hw structure |
| * @vif: Pointer to the ieee80211_vif structure. |
| * @queue: Queue number. |
| * @params: Pointer to ieee80211_tx_queue_params structure. |
| * |
| * Return: 0 on success, negative error code on failure. |
| */ |
| static int rsi_mac80211_conf_tx(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, u16 queue, |
| const struct ieee80211_tx_queue_params *params) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| u8 idx = 0; |
| |
| if (queue >= IEEE80211_NUM_ACS) |
| return 0; |
| |
| rsi_dbg(INFO_ZONE, |
| "%s: Conf queue %d, aifs: %d, cwmin: %d cwmax: %d, txop: %d\n", |
| __func__, queue, params->aifs, |
| params->cw_min, params->cw_max, params->txop); |
| |
| mutex_lock(&common->mutex); |
| /* Map into the way the f/w expects */ |
| switch (queue) { |
| case IEEE80211_AC_VO: |
| idx = VO_Q; |
| break; |
| case IEEE80211_AC_VI: |
| idx = VI_Q; |
| break; |
| case IEEE80211_AC_BE: |
| idx = BE_Q; |
| break; |
| case IEEE80211_AC_BK: |
| idx = BK_Q; |
| break; |
| default: |
| idx = BE_Q; |
| break; |
| } |
| |
| memcpy(&common->edca_params[idx], |
| params, |
| sizeof(struct ieee80211_tx_queue_params)); |
| |
| if (params->uapsd) |
| common->uapsd_bitmap |= idx; |
| else |
| common->uapsd_bitmap &= (~idx); |
| |
| mutex_unlock(&common->mutex); |
| |
| return 0; |
| } |
| |
| /** |
| * rsi_hal_key_config() - This function loads the keys into the firmware. |
| * @hw: Pointer to the ieee80211_hw structure. |
| * @vif: Pointer to the ieee80211_vif structure. |
| * @key: Pointer to the ieee80211_key_conf structure. |
| * |
| * Return: status: 0 on success, negative error codes on failure. |
| */ |
| static int rsi_hal_key_config(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_key_conf *key, |
| struct ieee80211_sta *sta) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_sta *rsta = NULL; |
| int status; |
| u8 key_type; |
| s16 sta_id = 0; |
| |
| if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) |
| key_type = RSI_PAIRWISE_KEY; |
| else |
| key_type = RSI_GROUP_KEY; |
| |
| rsi_dbg(ERR_ZONE, "%s: Cipher 0x%x key_type: %d key_len: %d\n", |
| __func__, key->cipher, key_type, key->keylen); |
| |
| if ((vif->type == NL80211_IFTYPE_AP) || |
| (vif->type == NL80211_IFTYPE_P2P_GO)) { |
| if (sta) { |
| rsta = rsi_find_sta(adapter->priv, sta->addr); |
| if (rsta) |
| sta_id = rsta->sta_id; |
| } |
| adapter->priv->key = key; |
| } else { |
| if ((key->cipher == WLAN_CIPHER_SUITE_WEP104) || |
| (key->cipher == WLAN_CIPHER_SUITE_WEP40)) { |
| status = rsi_hal_load_key(adapter->priv, |
| key->key, |
| key->keylen, |
| RSI_PAIRWISE_KEY, |
| key->keyidx, |
| key->cipher, |
| sta_id, |
| vif); |
| if (status) |
| return status; |
| } |
| } |
| |
| status = rsi_hal_load_key(adapter->priv, |
| key->key, |
| key->keylen, |
| key_type, |
| key->keyidx, |
| key->cipher, |
| sta_id, |
| vif); |
| if (status) |
| return status; |
| |
| if (vif->type == NL80211_IFTYPE_STATION && |
| (key->cipher == WLAN_CIPHER_SUITE_WEP104 || |
| key->cipher == WLAN_CIPHER_SUITE_WEP40)) { |
| if (!rsi_send_block_unblock_frame(adapter->priv, false)) |
| adapter->priv->hw_data_qs_blocked = false; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * rsi_mac80211_set_key() - This function sets type of key to be loaded. |
| * @hw: Pointer to the ieee80211_hw structure. |
| * @cmd: enum set_key_cmd. |
| * @vif: Pointer to the ieee80211_vif structure. |
| * @sta: Pointer to the ieee80211_sta structure. |
| * @key: Pointer to the ieee80211_key_conf structure. |
| * |
| * Return: status: 0 on success, negative error code on failure. |
| */ |
| static int rsi_mac80211_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 rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| struct security_info *secinfo = &common->secinfo; |
| int status; |
| |
| mutex_lock(&common->mutex); |
| switch (cmd) { |
| case SET_KEY: |
| secinfo->security_enable = true; |
| status = rsi_hal_key_config(hw, vif, key, sta); |
| if (status) { |
| mutex_unlock(&common->mutex); |
| return status; |
| } |
| |
| if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) |
| secinfo->ptk_cipher = key->cipher; |
| else |
| secinfo->gtk_cipher = key->cipher; |
| |
| key->hw_key_idx = key->keyidx; |
| key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; |
| |
| rsi_dbg(ERR_ZONE, "%s: RSI set_key\n", __func__); |
| break; |
| |
| case DISABLE_KEY: |
| if (vif->type == NL80211_IFTYPE_STATION) |
| secinfo->security_enable = false; |
| rsi_dbg(ERR_ZONE, "%s: RSI del key\n", __func__); |
| memset(key, 0, sizeof(struct ieee80211_key_conf)); |
| status = rsi_hal_key_config(hw, vif, key, sta); |
| break; |
| |
| default: |
| status = -EOPNOTSUPP; |
| break; |
| } |
| |
| mutex_unlock(&common->mutex); |
| return status; |
| } |
| |
| /** |
| * rsi_mac80211_ampdu_action() - This function selects the AMPDU action for |
| * the corresponding mlme_action flag and |
| * informs the f/w regarding this. |
| * @hw: Pointer to the ieee80211_hw structure. |
| * @vif: Pointer to the ieee80211_vif structure. |
| * @params: Pointer to A-MPDU action parameters |
| * |
| * Return: status: 0 on success, negative error code on failure. |
| */ |
| static int rsi_mac80211_ampdu_action(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_ampdu_params *params) |
| { |
| int status = -EOPNOTSUPP; |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| struct rsi_sta *rsta = NULL; |
| u16 seq_no = 0, seq_start = 0; |
| u8 ii = 0; |
| struct ieee80211_sta *sta = params->sta; |
| u8 sta_id = 0; |
| enum ieee80211_ampdu_mlme_action action = params->action; |
| u16 tid = params->tid; |
| u16 *ssn = ¶ms->ssn; |
| u8 buf_size = params->buf_size; |
| |
| for (ii = 0; ii < RSI_MAX_VIFS; ii++) { |
| if (vif == adapter->vifs[ii]) |
| break; |
| } |
| |
| mutex_lock(&common->mutex); |
| |
| if (ssn != NULL) |
| seq_no = *ssn; |
| |
| if ((vif->type == NL80211_IFTYPE_AP) || |
| (vif->type == NL80211_IFTYPE_P2P_GO)) { |
| rsta = rsi_find_sta(common, sta->addr); |
| if (!rsta) { |
| rsi_dbg(ERR_ZONE, "No station mapped\n"); |
| status = 0; |
| goto unlock; |
| } |
| sta_id = rsta->sta_id; |
| } |
| |
| rsi_dbg(INFO_ZONE, |
| "%s: AMPDU action tid=%d ssn=0x%x, buf_size=%d sta_id=%d\n", |
| __func__, tid, seq_no, buf_size, sta_id); |
| |
| switch (action) { |
| case IEEE80211_AMPDU_RX_START: |
| status = rsi_send_aggregation_params_frame(common, |
| tid, |
| seq_no, |
| buf_size, |
| STA_RX_ADDBA_DONE, |
| sta_id); |
| break; |
| |
| case IEEE80211_AMPDU_RX_STOP: |
| status = rsi_send_aggregation_params_frame(common, |
| tid, |
| 0, |
| buf_size, |
| STA_RX_DELBA, |
| sta_id); |
| break; |
| |
| case IEEE80211_AMPDU_TX_START: |
| if ((vif->type == NL80211_IFTYPE_STATION) || |
| (vif->type == NL80211_IFTYPE_P2P_CLIENT)) |
| common->vif_info[ii].seq_start = seq_no; |
| else if ((vif->type == NL80211_IFTYPE_AP) || |
| (vif->type == NL80211_IFTYPE_P2P_GO)) |
| rsta->seq_start[tid] = seq_no; |
| status = IEEE80211_AMPDU_TX_START_IMMEDIATE; |
| break; |
| |
| case IEEE80211_AMPDU_TX_STOP_CONT: |
| case IEEE80211_AMPDU_TX_STOP_FLUSH: |
| case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: |
| status = rsi_send_aggregation_params_frame(common, |
| tid, |
| seq_no, |
| buf_size, |
| STA_TX_DELBA, |
| sta_id); |
| if (!status) |
| ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); |
| break; |
| |
| case IEEE80211_AMPDU_TX_OPERATIONAL: |
| if ((vif->type == NL80211_IFTYPE_STATION) || |
| (vif->type == NL80211_IFTYPE_P2P_CLIENT)) |
| seq_start = common->vif_info[ii].seq_start; |
| else if ((vif->type == NL80211_IFTYPE_AP) || |
| (vif->type == NL80211_IFTYPE_P2P_GO)) |
| seq_start = rsta->seq_start[tid]; |
| status = rsi_send_aggregation_params_frame(common, |
| tid, |
| seq_start, |
| buf_size, |
| STA_TX_ADDBA_DONE, |
| sta_id); |
| break; |
| |
| default: |
| rsi_dbg(ERR_ZONE, "%s: Unknown AMPDU action\n", __func__); |
| break; |
| } |
| |
| unlock: |
| mutex_unlock(&common->mutex); |
| return status; |
| } |
| |
| /** |
| * rsi_mac80211_set_rts_threshold() - This function sets rts threshold value. |
| * @hw: Pointer to the ieee80211_hw structure. |
| * @value: Rts threshold value. |
| * |
| * Return: 0 on success. |
| */ |
| static int rsi_mac80211_set_rts_threshold(struct ieee80211_hw *hw, |
| u32 value) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| |
| mutex_lock(&common->mutex); |
| common->rts_threshold = value; |
| mutex_unlock(&common->mutex); |
| |
| return 0; |
| } |
| |
| /** |
| * rsi_mac80211_set_rate_mask() - This function sets bitrate_mask to be used. |
| * @hw: Pointer to the ieee80211_hw structure |
| * @vif: Pointer to the ieee80211_vif structure. |
| * @mask: Pointer to the cfg80211_bitrate_mask structure. |
| * |
| * Return: 0 on success. |
| */ |
| static int rsi_mac80211_set_rate_mask(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| const struct cfg80211_bitrate_mask *mask) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| enum nl80211_band band = hw->conf.chandef.chan->band; |
| |
| mutex_lock(&common->mutex); |
| common->fixedrate_mask[band] = 0; |
| |
| if (mask->control[band].legacy == 0xfff) { |
| common->fixedrate_mask[band] = |
| (mask->control[band].ht_mcs[0] << 12); |
| } else { |
| common->fixedrate_mask[band] = |
| mask->control[band].legacy; |
| } |
| mutex_unlock(&common->mutex); |
| |
| return 0; |
| } |
| |
| /** |
| * rsi_perform_cqm() - This function performs cqm. |
| * @common: Pointer to the driver private structure. |
| * @bssid: pointer to the bssid. |
| * @rssi: RSSI value. |
| */ |
| static void rsi_perform_cqm(struct rsi_common *common, |
| u8 *bssid, |
| s8 rssi, |
| struct ieee80211_vif *vif) |
| { |
| s8 last_event = common->cqm_info.last_cqm_event_rssi; |
| int thold = common->cqm_info.rssi_thold; |
| u32 hyst = common->cqm_info.rssi_hyst; |
| enum nl80211_cqm_rssi_threshold_event event; |
| |
| if (rssi < thold && (last_event == 0 || rssi < (last_event - hyst))) |
| event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW; |
| else if (rssi > thold && |
| (last_event == 0 || rssi > (last_event + hyst))) |
| event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH; |
| else |
| return; |
| |
| common->cqm_info.last_cqm_event_rssi = rssi; |
| rsi_dbg(INFO_ZONE, "CQM: Notifying event: %d\n", event); |
| ieee80211_cqm_rssi_notify(vif, event, rssi, GFP_KERNEL); |
| |
| return; |
| } |
| |
| /** |
| * rsi_fill_rx_status() - This function fills rx status in |
| * ieee80211_rx_status structure. |
| * @hw: Pointer to the ieee80211_hw structure. |
| * @skb: Pointer to the socket buffer structure. |
| * @common: Pointer to the driver private structure. |
| * @rxs: Pointer to the ieee80211_rx_status structure. |
| * |
| * Return: None. |
| */ |
| static void rsi_fill_rx_status(struct ieee80211_hw *hw, |
| struct sk_buff *skb, |
| struct rsi_common *common, |
| struct ieee80211_rx_status *rxs) |
| { |
| struct rsi_hw *adapter = common->priv; |
| struct ieee80211_vif *vif; |
| struct ieee80211_bss_conf *bss = NULL; |
| struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
| struct skb_info *rx_params = (struct skb_info *)info->driver_data; |
| struct ieee80211_hdr *hdr; |
| char rssi = rx_params->rssi; |
| u8 hdrlen = 0; |
| u8 channel = rx_params->channel; |
| s32 freq; |
| int i; |
| |
| hdr = ((struct ieee80211_hdr *)(skb->data)); |
| hdrlen = ieee80211_hdrlen(hdr->frame_control); |
| |
| memset(info, 0, sizeof(struct ieee80211_tx_info)); |
| |
| rxs->signal = -(rssi); |
| |
| rxs->band = common->band; |
| |
| freq = ieee80211_channel_to_frequency(channel, rxs->band); |
| |
| if (freq) |
| rxs->freq = freq; |
| |
| if (ieee80211_has_protected(hdr->frame_control)) { |
| if (rsi_is_cipher_wep(common)) { |
| memmove(skb->data + 4, skb->data, hdrlen); |
| skb_pull(skb, 4); |
| } else { |
| memmove(skb->data + 8, skb->data, hdrlen); |
| skb_pull(skb, 8); |
| rxs->flag |= RX_FLAG_MMIC_STRIPPED; |
| } |
| rxs->flag |= RX_FLAG_DECRYPTED; |
| rxs->flag |= RX_FLAG_IV_STRIPPED; |
| } |
| |
| for (i = 0; i < RSI_MAX_VIFS; i++) { |
| vif = adapter->vifs[i]; |
| if (!vif) |
| continue; |
| if (vif->type == NL80211_IFTYPE_STATION) { |
| bss = &vif->bss_conf; |
| break; |
| } |
| } |
| if (!bss) |
| return; |
| /* CQM only for connected AP beacons, the RSSI is a weighted avg */ |
| if (bss->assoc && !(memcmp(bss->bssid, hdr->addr2, ETH_ALEN))) { |
| if (ieee80211_is_beacon(hdr->frame_control)) |
| rsi_perform_cqm(common, hdr->addr2, rxs->signal, vif); |
| } |
| |
| return; |
| } |
| |
| /** |
| * rsi_indicate_pkt_to_os() - This function sends received packet to mac80211. |
| * @common: Pointer to the driver private structure. |
| * @skb: Pointer to the socket buffer structure. |
| * |
| * Return: None. |
| */ |
| void rsi_indicate_pkt_to_os(struct rsi_common *common, |
| struct sk_buff *skb) |
| { |
| struct rsi_hw *adapter = common->priv; |
| struct ieee80211_hw *hw = adapter->hw; |
| struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb); |
| |
| if ((common->iface_down) || (!adapter->sc_nvifs)) { |
| dev_kfree_skb(skb); |
| return; |
| } |
| |
| /* filling in the ieee80211_rx_status flags */ |
| rsi_fill_rx_status(hw, skb, common, rx_status); |
| |
| ieee80211_rx_irqsafe(hw, skb); |
| } |
| |
| static void rsi_set_min_rate(struct ieee80211_hw *hw, |
| struct ieee80211_sta *sta, |
| struct rsi_common *common) |
| { |
| u8 band = hw->conf.chandef.chan->band; |
| u8 ii; |
| u32 rate_bitmap; |
| bool matched = false; |
| |
| common->bitrate_mask[band] = sta->supp_rates[band]; |
| |
| rate_bitmap = (common->fixedrate_mask[band] & sta->supp_rates[band]); |
| |
| if (rate_bitmap & 0xfff) { |
| /* Find out the min rate */ |
| for (ii = 0; ii < ARRAY_SIZE(rsi_rates); ii++) { |
| if (rate_bitmap & BIT(ii)) { |
| common->min_rate = rsi_rates[ii].hw_value; |
| matched = true; |
| break; |
| } |
| } |
| } |
| |
| common->vif_info[0].is_ht = sta->ht_cap.ht_supported; |
| |
| if ((common->vif_info[0].is_ht) && (rate_bitmap >> 12)) { |
| for (ii = 0; ii < ARRAY_SIZE(rsi_mcsrates); ii++) { |
| if ((rate_bitmap >> 12) & BIT(ii)) { |
| common->min_rate = rsi_mcsrates[ii]; |
| matched = true; |
| break; |
| } |
| } |
| } |
| |
| if (!matched) |
| common->min_rate = 0xffff; |
| } |
| |
| /** |
| * rsi_mac80211_sta_add() - This function notifies driver about a peer getting |
| * connected. |
| * @hw: pointer to the ieee80211_hw structure. |
| * @vif: Pointer to the ieee80211_vif structure. |
| * @sta: Pointer to the ieee80211_sta structure. |
| * |
| * Return: 0 on success, negative error codes on failure. |
| */ |
| static int rsi_mac80211_sta_add(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| bool sta_exist = false; |
| struct rsi_sta *rsta; |
| int status = 0; |
| |
| rsi_dbg(INFO_ZONE, "Station Add: %pM\n", sta->addr); |
| |
| mutex_lock(&common->mutex); |
| |
| if ((vif->type == NL80211_IFTYPE_AP) || |
| (vif->type == NL80211_IFTYPE_P2P_GO)) { |
| u8 cnt; |
| int sta_idx = -1; |
| int free_index = -1; |
| |
| /* Check if max stations reached */ |
| if (common->num_stations >= common->max_stations) { |
| rsi_dbg(ERR_ZONE, "Reject: Max Stations exists\n"); |
| status = -EOPNOTSUPP; |
| goto unlock; |
| } |
| for (cnt = 0; cnt < common->max_stations; cnt++) { |
| rsta = &common->stations[cnt]; |
| |
| if (!rsta->sta) { |
| if (free_index < 0) |
| free_index = cnt; |
| continue; |
| } |
| if (!memcmp(rsta->sta->addr, sta->addr, ETH_ALEN)) { |
| rsi_dbg(INFO_ZONE, "Station exists\n"); |
| sta_idx = cnt; |
| sta_exist = true; |
| break; |
| } |
| } |
| if (!sta_exist) { |
| if (free_index >= 0) |
| sta_idx = free_index; |
| } |
| if (sta_idx < 0) { |
| rsi_dbg(ERR_ZONE, |
| "%s: Some problem reaching here...\n", |
| __func__); |
| status = -EINVAL; |
| goto unlock; |
| } |
| rsta = &common->stations[sta_idx]; |
| rsta->sta = sta; |
| rsta->sta_id = sta_idx; |
| for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++) |
| rsta->start_tx_aggr[cnt] = false; |
| for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++) |
| rsta->seq_start[cnt] = 0; |
| if (!sta_exist) { |
| rsi_dbg(INFO_ZONE, "New Station\n"); |
| |
| /* Send peer notify to device */ |
| rsi_dbg(INFO_ZONE, "Indicate bss status to device\n"); |
| rsi_inform_bss_status(common, RSI_OPMODE_AP, 1, |
| sta->addr, sta->wme, sta->aid, |
| sta, sta_idx, 0, vif); |
| |
| if (common->key) { |
| struct ieee80211_key_conf *key = common->key; |
| |
| if ((key->cipher == WLAN_CIPHER_SUITE_WEP104) || |
| (key->cipher == WLAN_CIPHER_SUITE_WEP40)) |
| rsi_hal_load_key(adapter->priv, |
| key->key, |
| key->keylen, |
| RSI_PAIRWISE_KEY, |
| key->keyidx, |
| key->cipher, |
| sta_idx, |
| vif); |
| } |
| |
| common->num_stations++; |
| } |
| } |
| |
| if ((vif->type == NL80211_IFTYPE_STATION) || |
| (vif->type == NL80211_IFTYPE_P2P_CLIENT)) { |
| rsi_set_min_rate(hw, sta, common); |
| if (sta->ht_cap.ht_supported) { |
| common->vif_info[0].is_ht = true; |
| common->bitrate_mask[NL80211_BAND_2GHZ] = |
| sta->supp_rates[NL80211_BAND_2GHZ]; |
| if ((sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20) || |
| (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40)) |
| common->vif_info[0].sgi = true; |
| ieee80211_start_tx_ba_session(sta, 0, 0); |
| } |
| } |
| |
| unlock: |
| mutex_unlock(&common->mutex); |
| |
| return status; |
| } |
| |
| /** |
| * rsi_mac80211_sta_remove() - This function notifies driver about a peer |
| * getting disconnected. |
| * @hw: Pointer to the ieee80211_hw structure. |
| * @vif: Pointer to the ieee80211_vif structure. |
| * @sta: Pointer to the ieee80211_sta structure. |
| * |
| * Return: 0 on success, negative error codes on failure. |
| */ |
| static int rsi_mac80211_sta_remove(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| struct ieee80211_bss_conf *bss = &vif->bss_conf; |
| struct rsi_sta *rsta; |
| |
| rsi_dbg(INFO_ZONE, "Station Remove: %pM\n", sta->addr); |
| |
| mutex_lock(&common->mutex); |
| |
| if ((vif->type == NL80211_IFTYPE_AP) || |
| (vif->type == NL80211_IFTYPE_P2P_GO)) { |
| u8 sta_idx, cnt; |
| |
| /* Send peer notify to device */ |
| rsi_dbg(INFO_ZONE, "Indicate bss status to device\n"); |
| for (sta_idx = 0; sta_idx < common->max_stations; sta_idx++) { |
| rsta = &common->stations[sta_idx]; |
| |
| if (!rsta->sta) |
| continue; |
| if (!memcmp(rsta->sta->addr, sta->addr, ETH_ALEN)) { |
| rsi_inform_bss_status(common, RSI_OPMODE_AP, 0, |
| sta->addr, sta->wme, |
| sta->aid, sta, sta_idx, |
| 0, vif); |
| rsta->sta = NULL; |
| rsta->sta_id = -1; |
| for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++) |
| rsta->start_tx_aggr[cnt] = false; |
| if (common->num_stations > 0) |
| common->num_stations--; |
| break; |
| } |
| } |
| if (sta_idx >= common->max_stations) |
| rsi_dbg(ERR_ZONE, "%s: No station found\n", __func__); |
| } |
| |
| if ((vif->type == NL80211_IFTYPE_STATION) || |
| (vif->type == NL80211_IFTYPE_P2P_CLIENT)) { |
| /* Resetting all the fields to default values */ |
| memcpy((u8 *)bss->bssid, (u8 *)sta->addr, ETH_ALEN); |
| bss->qos = sta->wme; |
| common->bitrate_mask[NL80211_BAND_2GHZ] = 0; |
| common->bitrate_mask[NL80211_BAND_5GHZ] = 0; |
| common->min_rate = 0xffff; |
| common->vif_info[0].is_ht = false; |
| common->vif_info[0].sgi = false; |
| common->vif_info[0].seq_start = 0; |
| common->secinfo.ptk_cipher = 0; |
| common->secinfo.gtk_cipher = 0; |
| if (!common->iface_down) |
| rsi_send_rx_filter_frame(common, 0); |
| } |
| mutex_unlock(&common->mutex); |
| |
| return 0; |
| } |
| |
| /** |
| * rsi_mac80211_set_antenna() - This function is used to configure |
| * tx and rx antennas. |
| * @hw: Pointer to the ieee80211_hw structure. |
| * @tx_ant: Bitmap for tx antenna |
| * @rx_ant: Bitmap for rx antenna |
| * |
| * Return: 0 on success, Negative error code on failure. |
| */ |
| static int rsi_mac80211_set_antenna(struct ieee80211_hw *hw, |
| u32 tx_ant, u32 rx_ant) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| u8 antenna = 0; |
| |
| if (tx_ant > 1 || rx_ant > 1) { |
| rsi_dbg(ERR_ZONE, |
| "Invalid antenna selection (tx: %d, rx:%d)\n", |
| tx_ant, rx_ant); |
| rsi_dbg(ERR_ZONE, |
| "Use 0 for int_ant, 1 for ext_ant\n"); |
| return -EINVAL; |
| } |
| |
| rsi_dbg(INFO_ZONE, "%s: Antenna map Tx %x Rx %d\n", |
| __func__, tx_ant, rx_ant); |
| |
| mutex_lock(&common->mutex); |
| |
| antenna = tx_ant ? ANTENNA_SEL_UFL : ANTENNA_SEL_INT; |
| if (common->ant_in_use != antenna) |
| if (rsi_set_antenna(common, antenna)) |
| goto fail_set_antenna; |
| |
| rsi_dbg(INFO_ZONE, "(%s) Antenna path configured successfully\n", |
| tx_ant ? "UFL" : "INT"); |
| |
| common->ant_in_use = antenna; |
| |
| mutex_unlock(&common->mutex); |
| |
| return 0; |
| |
| fail_set_antenna: |
| rsi_dbg(ERR_ZONE, "%s: Failed.\n", __func__); |
| mutex_unlock(&common->mutex); |
| return -EINVAL; |
| } |
| |
| /** |
| * rsi_mac80211_get_antenna() - This function is used to configure |
| * tx and rx antennas. |
| * |
| * @hw: Pointer to the ieee80211_hw structure. |
| * @tx_ant: Bitmap for tx antenna |
| * @rx_ant: Bitmap for rx antenna |
| * |
| * Return: 0 on success, negative error codes on failure. |
| */ |
| static int rsi_mac80211_get_antenna(struct ieee80211_hw *hw, |
| u32 *tx_ant, u32 *rx_ant) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| |
| mutex_lock(&common->mutex); |
| |
| *tx_ant = (common->ant_in_use == ANTENNA_SEL_UFL) ? 1 : 0; |
| *rx_ant = 0; |
| |
| mutex_unlock(&common->mutex); |
| |
| return 0; |
| } |
| |
| static int rsi_map_region_code(enum nl80211_dfs_regions region_code) |
| { |
| switch (region_code) { |
| case NL80211_DFS_FCC: |
| return RSI_REGION_FCC; |
| case NL80211_DFS_ETSI: |
| return RSI_REGION_ETSI; |
| case NL80211_DFS_JP: |
| return RSI_REGION_TELEC; |
| case NL80211_DFS_UNSET: |
| return RSI_REGION_WORLD; |
| } |
| return RSI_REGION_WORLD; |
| } |
| |
| static void rsi_reg_notify(struct wiphy *wiphy, |
| struct regulatory_request *request) |
| { |
| struct ieee80211_supported_band *sband; |
| struct ieee80211_channel *ch; |
| struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); |
| struct rsi_hw * adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| int i; |
| |
| mutex_lock(&common->mutex); |
| |
| rsi_dbg(INFO_ZONE, "country = %s dfs_region = %d\n", |
| request->alpha2, request->dfs_region); |
| |
| if (common->num_supp_bands > 1) { |
| sband = wiphy->bands[NL80211_BAND_5GHZ]; |
| |
| for (i = 0; i < sband->n_channels; i++) { |
| ch = &sband->channels[i]; |
| if (ch->flags & IEEE80211_CHAN_DISABLED) |
| continue; |
| |
| if (ch->flags & IEEE80211_CHAN_RADAR) |
| ch->flags |= IEEE80211_CHAN_NO_IR; |
| } |
| } |
| adapter->dfs_region = rsi_map_region_code(request->dfs_region); |
| rsi_dbg(INFO_ZONE, "RSI region code = %d\n", adapter->dfs_region); |
| |
| adapter->country[0] = request->alpha2[0]; |
| adapter->country[1] = request->alpha2[1]; |
| |
| mutex_unlock(&common->mutex); |
| } |
| |
| static void rsi_mac80211_rfkill_poll(struct ieee80211_hw *hw) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| |
| mutex_lock(&common->mutex); |
| if (common->fsm_state != FSM_MAC_INIT_DONE) |
| wiphy_rfkill_set_hw_state(hw->wiphy, true); |
| else |
| wiphy_rfkill_set_hw_state(hw->wiphy, false); |
| mutex_unlock(&common->mutex); |
| } |
| |
| static void rsi_resume_conn_channel(struct rsi_common *common) |
| { |
| struct rsi_hw *adapter = common->priv; |
| struct ieee80211_vif *vif; |
| int cnt; |
| |
| for (cnt = 0; cnt < RSI_MAX_VIFS; cnt++) { |
| vif = adapter->vifs[cnt]; |
| if (!vif) |
| continue; |
| |
| if ((vif->type == NL80211_IFTYPE_AP) || |
| (vif->type == NL80211_IFTYPE_P2P_GO)) { |
| rsi_switch_channel(adapter, vif); |
| break; |
| } |
| if (((vif->type == NL80211_IFTYPE_STATION) || |
| (vif->type == NL80211_IFTYPE_P2P_CLIENT)) && |
| vif->bss_conf.assoc) { |
| rsi_switch_channel(adapter, vif); |
| break; |
| } |
| } |
| } |
| |
| void rsi_roc_timeout(struct timer_list *t) |
| { |
| struct rsi_common *common = from_timer(common, t, roc_timer); |
| |
| rsi_dbg(INFO_ZONE, "Remain on channel expired\n"); |
| |
| mutex_lock(&common->mutex); |
| ieee80211_remain_on_channel_expired(common->priv->hw); |
| |
| if (timer_pending(&common->roc_timer)) |
| del_timer(&common->roc_timer); |
| |
| rsi_resume_conn_channel(common); |
| mutex_unlock(&common->mutex); |
| } |
| |
| static int rsi_mac80211_roc(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
| struct ieee80211_channel *chan, int duration, |
| enum ieee80211_roc_type type) |
| { |
| struct rsi_hw *adapter = (struct rsi_hw *)hw->priv; |
| struct rsi_common *common = (struct rsi_common *)adapter->priv; |
| int status = 0; |
| |
| rsi_dbg(INFO_ZONE, "***** Remain on channel *****\n"); |
| |
| mutex_lock(&common->mutex); |
| rsi_dbg(INFO_ZONE, "%s: channel: %d duration: %dms\n", |
| __func__, chan->hw_value, duration); |
| |
| if (timer_pending(&common->roc_timer)) { |
| rsi_dbg(INFO_ZONE, "Stop on-going ROC\n"); |
| del_timer(&common->roc_timer); |
| } |
| common->roc_timer.expires = msecs_to_jiffies(duration) + jiffies; |
| add_timer(&common->roc_timer); |
| |
| /* Configure band */ |
| if (rsi_band_check(common, chan)) { |
| rsi_dbg(ERR_ZONE, "Failed to set band\n"); |
| status = -EINVAL; |
| goto out; |
| } |
| |
| /* Configure channel */ |
| if (rsi_set_channel(common, chan)) { |
| rsi_dbg(ERR_ZONE, "Failed to set the channel\n"); |
| status = -EINVAL; |
| goto out; |
| } |
| |
| common->roc_vif = vif; |
| ieee80211_ready_on_channel(hw); |
| rsi_dbg(INFO_ZONE, "%s: Ready on channel :%d\n", |
| __func__, chan->hw_value); |
| |
| out: |
| mutex_unlock(&common->mutex); |
| |
| return status; |
| } |
| |
| static int rsi_mac80211_cancel_roc(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| |
| rsi_dbg(INFO_ZONE, "Cancel remain on channel\n"); |
| |
| mutex_lock(&common->mutex); |
| if (!timer_pending(&common->roc_timer)) { |
| mutex_unlock(&common->mutex); |
| return 0; |
| } |
| |
| del_timer(&common->roc_timer); |
| |
| rsi_resume_conn_channel(common); |
| mutex_unlock(&common->mutex); |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_PM |
| static const struct wiphy_wowlan_support rsi_wowlan_support = { |
| .flags = WIPHY_WOWLAN_ANY | |
| WIPHY_WOWLAN_MAGIC_PKT | |
| WIPHY_WOWLAN_DISCONNECT | |
| WIPHY_WOWLAN_GTK_REKEY_FAILURE | |
| WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
| WIPHY_WOWLAN_EAP_IDENTITY_REQ | |
| WIPHY_WOWLAN_4WAY_HANDSHAKE, |
| }; |
| |
| static u16 rsi_wow_map_triggers(struct rsi_common *common, |
| struct cfg80211_wowlan *wowlan) |
| { |
| u16 wow_triggers = 0; |
| |
| rsi_dbg(INFO_ZONE, "Mapping wowlan triggers\n"); |
| |
| if (wowlan->any) |
| wow_triggers |= RSI_WOW_ANY; |
| if (wowlan->magic_pkt) |
| wow_triggers |= RSI_WOW_MAGIC_PKT; |
| if (wowlan->disconnect) |
| wow_triggers |= RSI_WOW_DISCONNECT; |
| if (wowlan->gtk_rekey_failure || wowlan->eap_identity_req || |
| wowlan->four_way_handshake) |
| wow_triggers |= RSI_WOW_GTK_REKEY; |
| |
| return wow_triggers; |
| } |
| |
| int rsi_config_wowlan(struct rsi_hw *adapter, struct cfg80211_wowlan *wowlan) |
| { |
| struct rsi_common *common = adapter->priv; |
| u16 triggers = 0; |
| u16 rx_filter_word = 0; |
| struct ieee80211_bss_conf *bss = NULL; |
| |
| rsi_dbg(INFO_ZONE, "Config WoWLAN to device\n"); |
| |
| if (!adapter->vifs[0]) |
| return -EINVAL; |
| |
| bss = &adapter->vifs[0]->bss_conf; |
| |
| if (WARN_ON(!wowlan)) { |
| rsi_dbg(ERR_ZONE, "WoW triggers not enabled\n"); |
| return -EINVAL; |
| } |
| |
| common->wow_flags |= RSI_WOW_ENABLED; |
| triggers = rsi_wow_map_triggers(common, wowlan); |
| if (!triggers) { |
| rsi_dbg(ERR_ZONE, "%s:No valid WoW triggers\n", __func__); |
| return -EINVAL; |
| } |
| if (!bss->assoc) { |
| rsi_dbg(ERR_ZONE, |
| "Cannot configure WoWLAN (Station not connected)\n"); |
| common->wow_flags |= RSI_WOW_NO_CONNECTION; |
| return 0; |
| } |
| rsi_dbg(INFO_ZONE, "TRIGGERS %x\n", triggers); |
| |
| if (common->coex_mode > 1) |
| rsi_disable_ps(adapter, adapter->vifs[0]); |
| |
| rsi_send_wowlan_request(common, triggers, 1); |
| |
| /** |
| * Increase the beacon_miss threshold & keep-alive timers in |
| * vap_update frame |
| */ |
| rsi_send_vap_dynamic_update(common); |
| |
| rx_filter_word = (ALLOW_DATA_ASSOC_PEER | DISALLOW_BEACONS); |
| rsi_send_rx_filter_frame(common, rx_filter_word); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(rsi_config_wowlan); |
| |
| static int rsi_mac80211_suspend(struct ieee80211_hw *hw, |
| struct cfg80211_wowlan *wowlan) |
| { |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| |
| rsi_dbg(INFO_ZONE, "%s: mac80211 suspend\n", __func__); |
| mutex_lock(&common->mutex); |
| if (rsi_config_wowlan(adapter, wowlan)) { |
| rsi_dbg(ERR_ZONE, "Failed to configure WoWLAN\n"); |
| mutex_unlock(&common->mutex); |
| return 1; |
| } |
| mutex_unlock(&common->mutex); |
| |
| return 0; |
| } |
| |
| static int rsi_mac80211_resume(struct ieee80211_hw *hw) |
| { |
| u16 rx_filter_word = 0; |
| struct rsi_hw *adapter = hw->priv; |
| struct rsi_common *common = adapter->priv; |
| |
| common->wow_flags = 0; |
| |
| rsi_dbg(INFO_ZONE, "%s: mac80211 resume\n", __func__); |
| |
| if (common->hibernate_resume) { |
| common->mac_ops_resumed = true; |
| /* Device need a complete restart of all MAC operations. |
| * returning 1 will serve this purpose. |
| */ |
| return 1; |
| } |
| |
| mutex_lock(&common->mutex); |
| rsi_send_wowlan_request(common, 0, 0); |
| |
| rx_filter_word = (ALLOW_DATA_ASSOC_PEER | ALLOW_CTRL_ASSOC_PEER | |
| ALLOW_MGMT_ASSOC_PEER); |
| rsi_send_rx_filter_frame(common, rx_filter_word); |
| mutex_unlock(&common->mutex); |
| |
| return 0; |
| } |
| |
| #endif |
| |
| static const struct ieee80211_ops mac80211_ops = { |
| .tx = rsi_mac80211_tx, |
| .start = rsi_mac80211_start, |
| .stop = rsi_mac80211_stop, |
| .add_interface = rsi_mac80211_add_interface, |
| .remove_interface = rsi_mac80211_remove_interface, |
| .config = rsi_mac80211_config, |
| .bss_info_changed = rsi_mac80211_bss_info_changed, |
| .conf_tx = rsi_mac80211_conf_tx, |
| .configure_filter = rsi_mac80211_conf_filter, |
| .set_key = rsi_mac80211_set_key, |
| .set_rts_threshold = rsi_mac80211_set_rts_threshold, |
| .set_bitrate_mask = rsi_mac80211_set_rate_mask, |
| .ampdu_action = rsi_mac80211_ampdu_action, |
| .sta_add = rsi_mac80211_sta_add, |
| .sta_remove = rsi_mac80211_sta_remove, |
| .set_antenna = rsi_mac80211_set_antenna, |
| .get_antenna = rsi_mac80211_get_antenna, |
| .rfkill_poll = rsi_mac80211_rfkill_poll, |
| .remain_on_channel = rsi_mac80211_roc, |
| .cancel_remain_on_channel = rsi_mac80211_cancel_roc, |
| #ifdef CONFIG_PM |
| .suspend = rsi_mac80211_suspend, |
| .resume = rsi_mac80211_resume, |
| #endif |
| .hw_scan = rsi_mac80211_hw_scan_start, |
| .cancel_hw_scan = rsi_mac80211_cancel_hw_scan, |
| }; |
| |
| /** |
| * rsi_mac80211_attach() - This function is used to initialize Mac80211 stack. |
| * @common: Pointer to the driver private structure. |
| * |
| * Return: 0 on success, negative error codes on failure. |
| */ |
| int rsi_mac80211_attach(struct rsi_common *common) |
| { |
| int status = 0; |
| struct ieee80211_hw *hw = NULL; |
| struct wiphy *wiphy = NULL; |
| struct rsi_hw *adapter = common->priv; |
| u8 addr_mask[ETH_ALEN] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x3}; |
| |
| rsi_dbg(INIT_ZONE, "%s: Performing mac80211 attach\n", __func__); |
| |
| hw = ieee80211_alloc_hw(sizeof(struct rsi_hw), &mac80211_ops); |
| if (!hw) { |
| rsi_dbg(ERR_ZONE, "%s: ieee80211 hw alloc failed\n", __func__); |
| return -ENOMEM; |
| } |
| |
| wiphy = hw->wiphy; |
| |
| SET_IEEE80211_DEV(hw, adapter->device); |
| |
| hw->priv = adapter; |
| adapter->hw = hw; |
| |
| ieee80211_hw_set(hw, SIGNAL_DBM); |
| ieee80211_hw_set(hw, HAS_RATE_CONTROL); |
| ieee80211_hw_set(hw, AMPDU_AGGREGATION); |
| ieee80211_hw_set(hw, SUPPORTS_PS); |
| ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); |
| |
| hw->queues = MAX_HW_QUEUES; |
| hw->extra_tx_headroom = RSI_NEEDED_HEADROOM; |
| |
| hw->max_rates = 1; |
| hw->max_rate_tries = MAX_RETRIES; |
| hw->uapsd_queues = RSI_IEEE80211_UAPSD_QUEUES; |
| hw->uapsd_max_sp_len = IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL; |
| |
| hw->max_tx_aggregation_subframes = RSI_MAX_TX_AGGR_FRMS; |
| hw->max_rx_aggregation_subframes = RSI_MAX_RX_AGGR_FRMS; |
| hw->rate_control_algorithm = "AARF"; |
| |
| SET_IEEE80211_PERM_ADDR(hw, common->mac_addr); |
| ether_addr_copy(hw->wiphy->addr_mask, addr_mask); |
| |
| wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | |
| BIT(NL80211_IFTYPE_AP) | |
| BIT(NL80211_IFTYPE_P2P_DEVICE) | |
| BIT(NL80211_IFTYPE_P2P_CLIENT) | |
| BIT(NL80211_IFTYPE_P2P_GO); |
| |
| wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; |
| wiphy->retry_short = RETRY_SHORT; |
| wiphy->retry_long = RETRY_LONG; |
| wiphy->frag_threshold = IEEE80211_MAX_FRAG_THRESHOLD; |
| wiphy->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; |
| wiphy->flags = 0; |
| |
| wiphy->available_antennas_rx = 1; |
| wiphy->available_antennas_tx = 1; |
| |
| status = rsi_register_rates_channels(adapter, NL80211_BAND_2GHZ); |
| if (status) |
| return status; |
| wiphy->bands[NL80211_BAND_2GHZ] = |
| &adapter->sbands[NL80211_BAND_2GHZ]; |
| if (common->num_supp_bands > 1) { |
| status = rsi_register_rates_channels(adapter, |
| NL80211_BAND_5GHZ); |
| if (status) |
| return status; |
| wiphy->bands[NL80211_BAND_5GHZ] = |
| &adapter->sbands[NL80211_BAND_5GHZ]; |
| } |
| |
| /* AP Parameters */ |
| wiphy->max_ap_assoc_sta = rsi_max_ap_stas[common->oper_mode - 1]; |
| common->max_stations = wiphy->max_ap_assoc_sta; |
| rsi_dbg(ERR_ZONE, "Max Stations Allowed = %d\n", common->max_stations); |
| hw->sta_data_size = sizeof(struct rsi_sta); |
| |
| wiphy->max_scan_ssids = RSI_MAX_SCAN_SSIDS; |
| wiphy->max_scan_ie_len = RSI_MAX_SCAN_IE_LEN; |
| wiphy->flags = WIPHY_FLAG_REPORTS_OBSS; |
| wiphy->flags |= WIPHY_FLAG_AP_UAPSD; |
| wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; |
| wiphy->reg_notifier = rsi_reg_notify; |
| |
| #ifdef CONFIG_PM |
| wiphy->wowlan = &rsi_wowlan_support; |
| #endif |
| |
| wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST); |
| |
| /* Wi-Fi direct parameters */ |
| wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; |
| wiphy->flags |= WIPHY_FLAG_OFFCHAN_TX; |
| wiphy->max_remain_on_channel_duration = 10000; |
| hw->max_listen_interval = 10; |
| wiphy->iface_combinations = rsi_iface_combinations; |
| wiphy->n_iface_combinations = ARRAY_SIZE(rsi_iface_combinations); |
| |
| if (common->coex_mode > 1) |
| wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
| |
| status = ieee80211_register_hw(hw); |
| if (status) |
| return status; |
| |
| return rsi_init_dbgfs(adapter); |
| } |