1dad0d04fSFariya Fatima /** 2dad0d04fSFariya Fatima * Copyright (c) 2014 Redpine Signals Inc. 3dad0d04fSFariya Fatima * 4dad0d04fSFariya Fatima * Permission to use, copy, modify, and/or distribute this software for any 5dad0d04fSFariya Fatima * purpose with or without fee is hereby granted, provided that the above 6dad0d04fSFariya Fatima * copyright notice and this permission notice appear in all copies. 7dad0d04fSFariya Fatima * 8dad0d04fSFariya Fatima * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9dad0d04fSFariya Fatima * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10dad0d04fSFariya Fatima * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11dad0d04fSFariya Fatima * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12dad0d04fSFariya Fatima * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13dad0d04fSFariya Fatima * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14dad0d04fSFariya Fatima * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15dad0d04fSFariya Fatima */ 16dad0d04fSFariya Fatima 17dad0d04fSFariya Fatima #include <linux/etherdevice.h> 18dad0d04fSFariya Fatima #include "rsi_debugfs.h" 19dad0d04fSFariya Fatima #include "rsi_mgmt.h" 20dad0d04fSFariya Fatima #include "rsi_common.h" 21dad0d04fSFariya Fatima 22dad0d04fSFariya Fatima static const struct ieee80211_channel rsi_2ghz_channels[] = { 23dad0d04fSFariya Fatima { .band = IEEE80211_BAND_2GHZ, .center_freq = 2412, 24dad0d04fSFariya Fatima .hw_value = 1 }, /* Channel 1 */ 25dad0d04fSFariya Fatima { .band = IEEE80211_BAND_2GHZ, .center_freq = 2417, 26dad0d04fSFariya Fatima .hw_value = 2 }, /* Channel 2 */ 27dad0d04fSFariya Fatima { .band = IEEE80211_BAND_2GHZ, .center_freq = 2422, 28dad0d04fSFariya Fatima .hw_value = 3 }, /* Channel 3 */ 29dad0d04fSFariya Fatima { .band = IEEE80211_BAND_2GHZ, .center_freq = 2427, 30dad0d04fSFariya Fatima .hw_value = 4 }, /* Channel 4 */ 31dad0d04fSFariya Fatima { .band = IEEE80211_BAND_2GHZ, .center_freq = 2432, 32dad0d04fSFariya Fatima .hw_value = 5 }, /* Channel 5 */ 33dad0d04fSFariya Fatima { .band = IEEE80211_BAND_2GHZ, .center_freq = 2437, 34dad0d04fSFariya Fatima .hw_value = 6 }, /* Channel 6 */ 35dad0d04fSFariya Fatima { .band = IEEE80211_BAND_2GHZ, .center_freq = 2442, 36dad0d04fSFariya Fatima .hw_value = 7 }, /* Channel 7 */ 37dad0d04fSFariya Fatima { .band = IEEE80211_BAND_2GHZ, .center_freq = 2447, 38dad0d04fSFariya Fatima .hw_value = 8 }, /* Channel 8 */ 39dad0d04fSFariya Fatima { .band = IEEE80211_BAND_2GHZ, .center_freq = 2452, 40dad0d04fSFariya Fatima .hw_value = 9 }, /* Channel 9 */ 41dad0d04fSFariya Fatima { .band = IEEE80211_BAND_2GHZ, .center_freq = 2457, 42dad0d04fSFariya Fatima .hw_value = 10 }, /* Channel 10 */ 43dad0d04fSFariya Fatima { .band = IEEE80211_BAND_2GHZ, .center_freq = 2462, 44dad0d04fSFariya Fatima .hw_value = 11 }, /* Channel 11 */ 45dad0d04fSFariya Fatima { .band = IEEE80211_BAND_2GHZ, .center_freq = 2467, 46dad0d04fSFariya Fatima .hw_value = 12 }, /* Channel 12 */ 47dad0d04fSFariya Fatima { .band = IEEE80211_BAND_2GHZ, .center_freq = 2472, 48dad0d04fSFariya Fatima .hw_value = 13 }, /* Channel 13 */ 49dad0d04fSFariya Fatima { .band = IEEE80211_BAND_2GHZ, .center_freq = 2484, 50dad0d04fSFariya Fatima .hw_value = 14 }, /* Channel 14 */ 51dad0d04fSFariya Fatima }; 52dad0d04fSFariya Fatima 53dad0d04fSFariya Fatima static const struct ieee80211_channel rsi_5ghz_channels[] = { 54dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5180, 55dad0d04fSFariya Fatima .hw_value = 36, }, /* Channel 36 */ 56dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5200, 57dad0d04fSFariya Fatima .hw_value = 40, }, /* Channel 40 */ 58dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5220, 59dad0d04fSFariya Fatima .hw_value = 44, }, /* Channel 44 */ 60dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5240, 61dad0d04fSFariya Fatima .hw_value = 48, }, /* Channel 48 */ 62dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5260, 63dad0d04fSFariya Fatima .hw_value = 52, }, /* Channel 52 */ 64dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5280, 65dad0d04fSFariya Fatima .hw_value = 56, }, /* Channel 56 */ 66dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5300, 67dad0d04fSFariya Fatima .hw_value = 60, }, /* Channel 60 */ 68dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5320, 69dad0d04fSFariya Fatima .hw_value = 64, }, /* Channel 64 */ 70dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5500, 71dad0d04fSFariya Fatima .hw_value = 100, }, /* Channel 100 */ 72dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5520, 73dad0d04fSFariya Fatima .hw_value = 104, }, /* Channel 104 */ 74dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5540, 75dad0d04fSFariya Fatima .hw_value = 108, }, /* Channel 108 */ 76dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5560, 77dad0d04fSFariya Fatima .hw_value = 112, }, /* Channel 112 */ 78dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5580, 79dad0d04fSFariya Fatima .hw_value = 116, }, /* Channel 116 */ 80dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5600, 81dad0d04fSFariya Fatima .hw_value = 120, }, /* Channel 120 */ 82dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5620, 83dad0d04fSFariya Fatima .hw_value = 124, }, /* Channel 124 */ 84dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5640, 85dad0d04fSFariya Fatima .hw_value = 128, }, /* Channel 128 */ 86dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5660, 87dad0d04fSFariya Fatima .hw_value = 132, }, /* Channel 132 */ 88dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5680, 89dad0d04fSFariya Fatima .hw_value = 136, }, /* Channel 136 */ 90dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5700, 91dad0d04fSFariya Fatima .hw_value = 140, }, /* Channel 140 */ 92dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5745, 93dad0d04fSFariya Fatima .hw_value = 149, }, /* Channel 149 */ 94dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5765, 95dad0d04fSFariya Fatima .hw_value = 153, }, /* Channel 153 */ 96dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5785, 97dad0d04fSFariya Fatima .hw_value = 157, }, /* Channel 157 */ 98dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5805, 99dad0d04fSFariya Fatima .hw_value = 161, }, /* Channel 161 */ 100dad0d04fSFariya Fatima { .band = IEEE80211_BAND_5GHZ, .center_freq = 5825, 101dad0d04fSFariya Fatima .hw_value = 165, }, /* Channel 165 */ 102dad0d04fSFariya Fatima }; 103dad0d04fSFariya Fatima 104dad0d04fSFariya Fatima struct ieee80211_rate rsi_rates[12] = { 105dad0d04fSFariya Fatima { .bitrate = STD_RATE_01 * 5, .hw_value = RSI_RATE_1 }, 106dad0d04fSFariya Fatima { .bitrate = STD_RATE_02 * 5, .hw_value = RSI_RATE_2 }, 107dad0d04fSFariya Fatima { .bitrate = STD_RATE_5_5 * 5, .hw_value = RSI_RATE_5_5 }, 108dad0d04fSFariya Fatima { .bitrate = STD_RATE_11 * 5, .hw_value = RSI_RATE_11 }, 109dad0d04fSFariya Fatima { .bitrate = STD_RATE_06 * 5, .hw_value = RSI_RATE_6 }, 110dad0d04fSFariya Fatima { .bitrate = STD_RATE_09 * 5, .hw_value = RSI_RATE_9 }, 111dad0d04fSFariya Fatima { .bitrate = STD_RATE_12 * 5, .hw_value = RSI_RATE_12 }, 112dad0d04fSFariya Fatima { .bitrate = STD_RATE_18 * 5, .hw_value = RSI_RATE_18 }, 113dad0d04fSFariya Fatima { .bitrate = STD_RATE_24 * 5, .hw_value = RSI_RATE_24 }, 114dad0d04fSFariya Fatima { .bitrate = STD_RATE_36 * 5, .hw_value = RSI_RATE_36 }, 115dad0d04fSFariya Fatima { .bitrate = STD_RATE_48 * 5, .hw_value = RSI_RATE_48 }, 116dad0d04fSFariya Fatima { .bitrate = STD_RATE_54 * 5, .hw_value = RSI_RATE_54 }, 117dad0d04fSFariya Fatima }; 118dad0d04fSFariya Fatima 119dad0d04fSFariya Fatima const u16 rsi_mcsrates[8] = { 120dad0d04fSFariya Fatima RSI_RATE_MCS0, RSI_RATE_MCS1, RSI_RATE_MCS2, RSI_RATE_MCS3, 121dad0d04fSFariya Fatima RSI_RATE_MCS4, RSI_RATE_MCS5, RSI_RATE_MCS6, RSI_RATE_MCS7 122dad0d04fSFariya Fatima }; 123dad0d04fSFariya Fatima 124dad0d04fSFariya Fatima /** 125dad0d04fSFariya Fatima * rsi_is_cipher_wep() - This function determines if the cipher is WEP or not. 126dad0d04fSFariya Fatima * @common: Pointer to the driver private structure. 127dad0d04fSFariya Fatima * 128dad0d04fSFariya Fatima * Return: If cipher type is WEP, a value of 1 is returned, else 0. 129dad0d04fSFariya Fatima */ 130dad0d04fSFariya Fatima 131dad0d04fSFariya Fatima bool rsi_is_cipher_wep(struct rsi_common *common) 132dad0d04fSFariya Fatima { 133dad0d04fSFariya Fatima if (((common->secinfo.gtk_cipher == WLAN_CIPHER_SUITE_WEP104) || 134dad0d04fSFariya Fatima (common->secinfo.gtk_cipher == WLAN_CIPHER_SUITE_WEP40)) && 135dad0d04fSFariya Fatima (!common->secinfo.ptk_cipher)) 136dad0d04fSFariya Fatima return true; 137dad0d04fSFariya Fatima else 138dad0d04fSFariya Fatima return false; 139dad0d04fSFariya Fatima } 140dad0d04fSFariya Fatima 141dad0d04fSFariya Fatima /** 142dad0d04fSFariya Fatima * rsi_register_rates_channels() - This function registers channels and rates. 143dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 144dad0d04fSFariya Fatima * @band: Operating band to be set. 145dad0d04fSFariya Fatima * 146dad0d04fSFariya Fatima * Return: None. 147dad0d04fSFariya Fatima */ 148dad0d04fSFariya Fatima static void rsi_register_rates_channels(struct rsi_hw *adapter, int band) 149dad0d04fSFariya Fatima { 150dad0d04fSFariya Fatima struct ieee80211_supported_band *sbands = &adapter->sbands[band]; 151dad0d04fSFariya Fatima void *channels = NULL; 152dad0d04fSFariya Fatima 153dad0d04fSFariya Fatima if (band == IEEE80211_BAND_2GHZ) { 154dad0d04fSFariya Fatima channels = kmalloc(sizeof(rsi_2ghz_channels), GFP_KERNEL); 155dad0d04fSFariya Fatima memcpy(channels, 156dad0d04fSFariya Fatima rsi_2ghz_channels, 157dad0d04fSFariya Fatima sizeof(rsi_2ghz_channels)); 158dad0d04fSFariya Fatima sbands->band = IEEE80211_BAND_2GHZ; 159dad0d04fSFariya Fatima sbands->n_channels = ARRAY_SIZE(rsi_2ghz_channels); 160dad0d04fSFariya Fatima sbands->bitrates = rsi_rates; 161dad0d04fSFariya Fatima sbands->n_bitrates = ARRAY_SIZE(rsi_rates); 162dad0d04fSFariya Fatima } else { 163dad0d04fSFariya Fatima channels = kmalloc(sizeof(rsi_5ghz_channels), GFP_KERNEL); 164dad0d04fSFariya Fatima memcpy(channels, 165dad0d04fSFariya Fatima rsi_5ghz_channels, 166dad0d04fSFariya Fatima sizeof(rsi_5ghz_channels)); 167dad0d04fSFariya Fatima sbands->band = IEEE80211_BAND_5GHZ; 168dad0d04fSFariya Fatima sbands->n_channels = ARRAY_SIZE(rsi_5ghz_channels); 169dad0d04fSFariya Fatima sbands->bitrates = &rsi_rates[4]; 170dad0d04fSFariya Fatima sbands->n_bitrates = ARRAY_SIZE(rsi_rates) - 4; 171dad0d04fSFariya Fatima } 172dad0d04fSFariya Fatima 173dad0d04fSFariya Fatima sbands->channels = channels; 174dad0d04fSFariya Fatima 175dad0d04fSFariya Fatima memset(&sbands->ht_cap, 0, sizeof(struct ieee80211_sta_ht_cap)); 176dad0d04fSFariya Fatima sbands->ht_cap.ht_supported = true; 177dad0d04fSFariya Fatima sbands->ht_cap.cap = (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | 178dad0d04fSFariya Fatima IEEE80211_HT_CAP_SGI_20 | 179dad0d04fSFariya Fatima IEEE80211_HT_CAP_SGI_40); 180dad0d04fSFariya Fatima sbands->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K; 181dad0d04fSFariya Fatima sbands->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; 182dad0d04fSFariya Fatima sbands->ht_cap.mcs.rx_mask[0] = 0xff; 183dad0d04fSFariya Fatima sbands->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; 184dad0d04fSFariya Fatima /* sbands->ht_cap.mcs.rx_highest = 0x82; */ 185dad0d04fSFariya Fatima } 186dad0d04fSFariya Fatima 187dad0d04fSFariya Fatima /** 188dad0d04fSFariya Fatima * rsi_mac80211_attach() - This function is used to de-initialize the 189dad0d04fSFariya Fatima * Mac80211 stack. 190dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 191dad0d04fSFariya Fatima * 192dad0d04fSFariya Fatima * Return: None. 193dad0d04fSFariya Fatima */ 194dad0d04fSFariya Fatima void rsi_mac80211_detach(struct rsi_hw *adapter) 195dad0d04fSFariya Fatima { 196dad0d04fSFariya Fatima struct ieee80211_hw *hw = adapter->hw; 197dad0d04fSFariya Fatima 198dad0d04fSFariya Fatima if (hw) { 199dad0d04fSFariya Fatima ieee80211_stop_queues(hw); 200dad0d04fSFariya Fatima ieee80211_unregister_hw(hw); 201dad0d04fSFariya Fatima ieee80211_free_hw(hw); 202dad0d04fSFariya Fatima } 203dad0d04fSFariya Fatima 204dad0d04fSFariya Fatima rsi_remove_dbgfs(adapter); 205dad0d04fSFariya Fatima } 206dad0d04fSFariya Fatima EXPORT_SYMBOL_GPL(rsi_mac80211_detach); 207dad0d04fSFariya Fatima 208dad0d04fSFariya Fatima /** 209dad0d04fSFariya Fatima * rsi_indicate_tx_status() - This function indicates the transmit status. 210dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 211dad0d04fSFariya Fatima * @skb: Pointer to the socket buffer structure. 212dad0d04fSFariya Fatima * @status: Status 213dad0d04fSFariya Fatima * 214dad0d04fSFariya Fatima * Return: None. 215dad0d04fSFariya Fatima */ 216dad0d04fSFariya Fatima void rsi_indicate_tx_status(struct rsi_hw *adapter, 217dad0d04fSFariya Fatima struct sk_buff *skb, 218dad0d04fSFariya Fatima int status) 219dad0d04fSFariya Fatima { 220dad0d04fSFariya Fatima struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 221dad0d04fSFariya Fatima 222dad0d04fSFariya Fatima memset(info->driver_data, 0, IEEE80211_TX_INFO_DRIVER_DATA_SIZE); 223dad0d04fSFariya Fatima 224dad0d04fSFariya Fatima if (!status) 225dad0d04fSFariya Fatima info->flags |= IEEE80211_TX_STAT_ACK; 226dad0d04fSFariya Fatima 227dad0d04fSFariya Fatima ieee80211_tx_status_irqsafe(adapter->hw, skb); 228dad0d04fSFariya Fatima } 229dad0d04fSFariya Fatima 230dad0d04fSFariya Fatima /** 231dad0d04fSFariya Fatima * rsi_mac80211_tx() - This is the handler that 802.11 module calls for each 232dad0d04fSFariya Fatima * transmitted frame.SKB contains the buffer starting 233dad0d04fSFariya Fatima * from the IEEE 802.11 header. 234dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 235dad0d04fSFariya Fatima * @control: Pointer to the ieee80211_tx_control structure 236dad0d04fSFariya Fatima * @skb: Pointer to the socket buffer structure. 237dad0d04fSFariya Fatima * 238dad0d04fSFariya Fatima * Return: None 239dad0d04fSFariya Fatima */ 240dad0d04fSFariya Fatima static void rsi_mac80211_tx(struct ieee80211_hw *hw, 241dad0d04fSFariya Fatima struct ieee80211_tx_control *control, 242dad0d04fSFariya Fatima struct sk_buff *skb) 243dad0d04fSFariya Fatima { 244dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 245dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 246dad0d04fSFariya Fatima 247dad0d04fSFariya Fatima rsi_core_xmit(common, skb); 248dad0d04fSFariya Fatima } 249dad0d04fSFariya Fatima 250dad0d04fSFariya Fatima /** 251dad0d04fSFariya Fatima * rsi_mac80211_start() - This is first handler that 802.11 module calls, since 252dad0d04fSFariya Fatima * the driver init is complete by then, just 253dad0d04fSFariya Fatima * returns success. 254dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 255dad0d04fSFariya Fatima * 256dad0d04fSFariya Fatima * Return: 0 as success. 257dad0d04fSFariya Fatima */ 258dad0d04fSFariya Fatima static int rsi_mac80211_start(struct ieee80211_hw *hw) 259dad0d04fSFariya Fatima { 260dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 261dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 262dad0d04fSFariya Fatima 263dad0d04fSFariya Fatima mutex_lock(&common->mutex); 264dad0d04fSFariya Fatima common->iface_down = false; 265dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 266dad0d04fSFariya Fatima 267dad0d04fSFariya Fatima return 0; 268dad0d04fSFariya Fatima } 269dad0d04fSFariya Fatima 270dad0d04fSFariya Fatima /** 271dad0d04fSFariya Fatima * rsi_mac80211_stop() - This is the last handler that 802.11 module calls. 272dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 273dad0d04fSFariya Fatima * 274dad0d04fSFariya Fatima * Return: None. 275dad0d04fSFariya Fatima */ 276dad0d04fSFariya Fatima static void rsi_mac80211_stop(struct ieee80211_hw *hw) 277dad0d04fSFariya Fatima { 278dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 279dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 280dad0d04fSFariya Fatima 281dad0d04fSFariya Fatima mutex_lock(&common->mutex); 282dad0d04fSFariya Fatima common->iface_down = true; 283dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 284dad0d04fSFariya Fatima } 285dad0d04fSFariya Fatima 286dad0d04fSFariya Fatima /** 287dad0d04fSFariya Fatima * rsi_mac80211_add_interface() - This function is called when a netdevice 288dad0d04fSFariya Fatima * attached to the hardware is enabled. 289dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 290dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 291dad0d04fSFariya Fatima * 292dad0d04fSFariya Fatima * Return: ret: 0 on success, negative error code on failure. 293dad0d04fSFariya Fatima */ 294dad0d04fSFariya Fatima static int rsi_mac80211_add_interface(struct ieee80211_hw *hw, 295dad0d04fSFariya Fatima struct ieee80211_vif *vif) 296dad0d04fSFariya Fatima { 297dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 298dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 299dad0d04fSFariya Fatima int ret = -EOPNOTSUPP; 300dad0d04fSFariya Fatima 301dad0d04fSFariya Fatima mutex_lock(&common->mutex); 302dad0d04fSFariya Fatima switch (vif->type) { 303dad0d04fSFariya Fatima case NL80211_IFTYPE_STATION: 304dad0d04fSFariya Fatima if (!adapter->sc_nvifs) { 305dad0d04fSFariya Fatima ++adapter->sc_nvifs; 306dad0d04fSFariya Fatima adapter->vifs[0] = vif; 307dad0d04fSFariya Fatima ret = rsi_set_vap_capabilities(common, STA_OPMODE); 308dad0d04fSFariya Fatima } 309dad0d04fSFariya Fatima break; 310dad0d04fSFariya Fatima default: 311dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, 312dad0d04fSFariya Fatima "%s: Interface type %d not supported\n", __func__, 313dad0d04fSFariya Fatima vif->type); 314dad0d04fSFariya Fatima } 315dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 316dad0d04fSFariya Fatima 317dad0d04fSFariya Fatima return ret; 318dad0d04fSFariya Fatima } 319dad0d04fSFariya Fatima 320dad0d04fSFariya Fatima /** 321dad0d04fSFariya Fatima * rsi_mac80211_remove_interface() - This function notifies driver that an 322dad0d04fSFariya Fatima * interface is going down. 323dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 324dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 325dad0d04fSFariya Fatima * 326dad0d04fSFariya Fatima * Return: None. 327dad0d04fSFariya Fatima */ 328dad0d04fSFariya Fatima static void rsi_mac80211_remove_interface(struct ieee80211_hw *hw, 329dad0d04fSFariya Fatima struct ieee80211_vif *vif) 330dad0d04fSFariya Fatima { 331dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 332dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 333dad0d04fSFariya Fatima 334dad0d04fSFariya Fatima mutex_lock(&common->mutex); 335dad0d04fSFariya Fatima if (vif->type == NL80211_IFTYPE_STATION) 336dad0d04fSFariya Fatima adapter->sc_nvifs--; 337dad0d04fSFariya Fatima 338dad0d04fSFariya Fatima if (!memcmp(adapter->vifs[0], vif, sizeof(struct ieee80211_vif))) 339dad0d04fSFariya Fatima adapter->vifs[0] = NULL; 340dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 341dad0d04fSFariya Fatima } 342dad0d04fSFariya Fatima 343dad0d04fSFariya Fatima /** 344dad0d04fSFariya Fatima * rsi_mac80211_config() - This function is a handler for configuration 345dad0d04fSFariya Fatima * requests. The stack calls this function to 346dad0d04fSFariya Fatima * change hardware configuration, e.g., channel. 347dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 348dad0d04fSFariya Fatima * @changed: Changed flags set. 349dad0d04fSFariya Fatima * 350dad0d04fSFariya Fatima * Return: 0 on success, negative error code on failure. 351dad0d04fSFariya Fatima */ 352dad0d04fSFariya Fatima static int rsi_mac80211_config(struct ieee80211_hw *hw, 353dad0d04fSFariya Fatima u32 changed) 354dad0d04fSFariya Fatima { 355dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 356dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 357dad0d04fSFariya Fatima int status = -EOPNOTSUPP; 358dad0d04fSFariya Fatima 359dad0d04fSFariya Fatima mutex_lock(&common->mutex); 360dad0d04fSFariya Fatima if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { 361dad0d04fSFariya Fatima struct ieee80211_channel *curchan = hw->conf.chandef.chan; 362dad0d04fSFariya Fatima u16 channel = curchan->hw_value; 363dad0d04fSFariya Fatima 364dad0d04fSFariya Fatima rsi_dbg(INFO_ZONE, 365dad0d04fSFariya Fatima "%s: Set channel: %d MHz type: %d channel_no %d\n", 366dad0d04fSFariya Fatima __func__, curchan->center_freq, 367dad0d04fSFariya Fatima curchan->flags, channel); 368dad0d04fSFariya Fatima common->band = curchan->band; 369dad0d04fSFariya Fatima status = rsi_set_channel(adapter->priv, channel); 370dad0d04fSFariya Fatima } 371dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 372dad0d04fSFariya Fatima 373dad0d04fSFariya Fatima return status; 374dad0d04fSFariya Fatima } 375dad0d04fSFariya Fatima 376dad0d04fSFariya Fatima /** 377dad0d04fSFariya Fatima * rsi_get_connected_channel() - This function is used to get the current 378dad0d04fSFariya Fatima * connected channel number. 379dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 380dad0d04fSFariya Fatima * 381dad0d04fSFariya Fatima * Return: Current connected AP's channel number is returned. 382dad0d04fSFariya Fatima */ 383dad0d04fSFariya Fatima u16 rsi_get_connected_channel(struct rsi_hw *adapter) 384dad0d04fSFariya Fatima { 385dad0d04fSFariya Fatima struct ieee80211_vif *vif = adapter->vifs[0]; 386dad0d04fSFariya Fatima if (vif) { 387dad0d04fSFariya Fatima struct ieee80211_bss_conf *bss = &vif->bss_conf; 388dad0d04fSFariya Fatima struct ieee80211_channel *channel = bss->chandef.chan; 389dad0d04fSFariya Fatima return channel->hw_value; 390dad0d04fSFariya Fatima } 391dad0d04fSFariya Fatima 392dad0d04fSFariya Fatima return 0; 393dad0d04fSFariya Fatima } 394dad0d04fSFariya Fatima 395dad0d04fSFariya Fatima /** 396dad0d04fSFariya Fatima * rsi_mac80211_bss_info_changed() - This function is a handler for config 397dad0d04fSFariya Fatima * requests related to BSS parameters that 398dad0d04fSFariya Fatima * may vary during BSS's lifespan. 399dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 400dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 401dad0d04fSFariya Fatima * @bss_conf: Pointer to the ieee80211_bss_conf structure. 402dad0d04fSFariya Fatima * @changed: Changed flags set. 403dad0d04fSFariya Fatima * 404dad0d04fSFariya Fatima * Return: None. 405dad0d04fSFariya Fatima */ 406dad0d04fSFariya Fatima static void rsi_mac80211_bss_info_changed(struct ieee80211_hw *hw, 407dad0d04fSFariya Fatima struct ieee80211_vif *vif, 408dad0d04fSFariya Fatima struct ieee80211_bss_conf *bss_conf, 409dad0d04fSFariya Fatima u32 changed) 410dad0d04fSFariya Fatima { 411dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 412dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 413dad0d04fSFariya Fatima 414dad0d04fSFariya Fatima mutex_lock(&common->mutex); 415dad0d04fSFariya Fatima if (changed & BSS_CHANGED_ASSOC) { 416dad0d04fSFariya Fatima rsi_dbg(INFO_ZONE, "%s: Changed Association status: %d\n", 417dad0d04fSFariya Fatima __func__, bss_conf->assoc); 418dad0d04fSFariya Fatima rsi_inform_bss_status(common, 419dad0d04fSFariya Fatima bss_conf->assoc, 420dad0d04fSFariya Fatima bss_conf->bssid, 421dad0d04fSFariya Fatima bss_conf->qos, 422dad0d04fSFariya Fatima bss_conf->aid); 423dad0d04fSFariya Fatima } 424dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 425dad0d04fSFariya Fatima } 426dad0d04fSFariya Fatima 427dad0d04fSFariya Fatima /** 428dad0d04fSFariya Fatima * rsi_mac80211_conf_filter() - This function configure the device's RX filter. 429dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 430dad0d04fSFariya Fatima * @changed: Changed flags set. 431dad0d04fSFariya Fatima * @total_flags: Total initial flags set. 432dad0d04fSFariya Fatima * @multicast: Multicast. 433dad0d04fSFariya Fatima * 434dad0d04fSFariya Fatima * Return: None. 435dad0d04fSFariya Fatima */ 436dad0d04fSFariya Fatima static void rsi_mac80211_conf_filter(struct ieee80211_hw *hw, 437dad0d04fSFariya Fatima u32 changed_flags, 438dad0d04fSFariya Fatima u32 *total_flags, 439dad0d04fSFariya Fatima u64 multicast) 440dad0d04fSFariya Fatima { 441dad0d04fSFariya Fatima /* Not doing much here as of now */ 442dad0d04fSFariya Fatima *total_flags &= RSI_SUPP_FILTERS; 443dad0d04fSFariya Fatima } 444dad0d04fSFariya Fatima 445dad0d04fSFariya Fatima /** 446dad0d04fSFariya Fatima * rsi_mac80211_conf_tx() - This function configures TX queue parameters 447dad0d04fSFariya Fatima * (EDCF (aifs, cw_min, cw_max), bursting) 448dad0d04fSFariya Fatima * for a hardware TX queue. 449dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure 450dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 451dad0d04fSFariya Fatima * @queue: Queue number. 452dad0d04fSFariya Fatima * @params: Pointer to ieee80211_tx_queue_params structure. 453dad0d04fSFariya Fatima * 454dad0d04fSFariya Fatima * Return: 0 on success, negative error code on failure. 455dad0d04fSFariya Fatima */ 456dad0d04fSFariya Fatima static int rsi_mac80211_conf_tx(struct ieee80211_hw *hw, 457dad0d04fSFariya Fatima struct ieee80211_vif *vif, u16 queue, 458dad0d04fSFariya Fatima const struct ieee80211_tx_queue_params *params) 459dad0d04fSFariya Fatima { 460dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 461dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 462dad0d04fSFariya Fatima u8 idx = 0; 463dad0d04fSFariya Fatima 464dad0d04fSFariya Fatima if (queue >= IEEE80211_NUM_ACS) 465dad0d04fSFariya Fatima return 0; 466dad0d04fSFariya Fatima 467dad0d04fSFariya Fatima rsi_dbg(INFO_ZONE, 468dad0d04fSFariya Fatima "%s: Conf queue %d, aifs: %d, cwmin: %d cwmax: %d, txop: %d\n", 469dad0d04fSFariya Fatima __func__, queue, params->aifs, 470dad0d04fSFariya Fatima params->cw_min, params->cw_max, params->txop); 471dad0d04fSFariya Fatima 472dad0d04fSFariya Fatima mutex_lock(&common->mutex); 473dad0d04fSFariya Fatima /* Map into the way the f/w expects */ 474dad0d04fSFariya Fatima switch (queue) { 475dad0d04fSFariya Fatima case IEEE80211_AC_VO: 476dad0d04fSFariya Fatima idx = VO_Q; 477dad0d04fSFariya Fatima break; 478dad0d04fSFariya Fatima case IEEE80211_AC_VI: 479dad0d04fSFariya Fatima idx = VI_Q; 480dad0d04fSFariya Fatima break; 481dad0d04fSFariya Fatima case IEEE80211_AC_BE: 482dad0d04fSFariya Fatima idx = BE_Q; 483dad0d04fSFariya Fatima break; 484dad0d04fSFariya Fatima case IEEE80211_AC_BK: 485dad0d04fSFariya Fatima idx = BK_Q; 486dad0d04fSFariya Fatima break; 487dad0d04fSFariya Fatima default: 488dad0d04fSFariya Fatima idx = BE_Q; 489dad0d04fSFariya Fatima break; 490dad0d04fSFariya Fatima } 491dad0d04fSFariya Fatima 492dad0d04fSFariya Fatima memcpy(&common->edca_params[idx], 493dad0d04fSFariya Fatima params, 494dad0d04fSFariya Fatima sizeof(struct ieee80211_tx_queue_params)); 495dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 496dad0d04fSFariya Fatima 497dad0d04fSFariya Fatima return 0; 498dad0d04fSFariya Fatima } 499dad0d04fSFariya Fatima 500dad0d04fSFariya Fatima /** 501dad0d04fSFariya Fatima * rsi_hal_key_config() - This function loads the keys into the firmware. 502dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 503dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 504dad0d04fSFariya Fatima * @key: Pointer to the ieee80211_key_conf structure. 505dad0d04fSFariya Fatima * 506dad0d04fSFariya Fatima * Return: status: 0 on success, -1 on failure. 507dad0d04fSFariya Fatima */ 508dad0d04fSFariya Fatima static int rsi_hal_key_config(struct ieee80211_hw *hw, 509dad0d04fSFariya Fatima struct ieee80211_vif *vif, 510dad0d04fSFariya Fatima struct ieee80211_key_conf *key) 511dad0d04fSFariya Fatima { 512dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 513dad0d04fSFariya Fatima int status; 514dad0d04fSFariya Fatima u8 key_type; 515dad0d04fSFariya Fatima 516dad0d04fSFariya Fatima if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 517dad0d04fSFariya Fatima key_type = RSI_PAIRWISE_KEY; 518dad0d04fSFariya Fatima else 519dad0d04fSFariya Fatima key_type = RSI_GROUP_KEY; 520dad0d04fSFariya Fatima 521dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: Cipher 0x%x key_type: %d key_len: %d\n", 522dad0d04fSFariya Fatima __func__, key->cipher, key_type, key->keylen); 523dad0d04fSFariya Fatima 524dad0d04fSFariya Fatima if ((key->cipher == WLAN_CIPHER_SUITE_WEP104) || 525dad0d04fSFariya Fatima (key->cipher == WLAN_CIPHER_SUITE_WEP40)) { 526dad0d04fSFariya Fatima status = rsi_hal_load_key(adapter->priv, 527dad0d04fSFariya Fatima key->key, 528dad0d04fSFariya Fatima key->keylen, 529dad0d04fSFariya Fatima RSI_PAIRWISE_KEY, 530dad0d04fSFariya Fatima key->keyidx, 531dad0d04fSFariya Fatima key->cipher); 532dad0d04fSFariya Fatima if (status) 533dad0d04fSFariya Fatima return status; 534dad0d04fSFariya Fatima } 535dad0d04fSFariya Fatima return rsi_hal_load_key(adapter->priv, 536dad0d04fSFariya Fatima key->key, 537dad0d04fSFariya Fatima key->keylen, 538dad0d04fSFariya Fatima key_type, 539dad0d04fSFariya Fatima key->keyidx, 540dad0d04fSFariya Fatima key->cipher); 541dad0d04fSFariya Fatima } 542dad0d04fSFariya Fatima 543dad0d04fSFariya Fatima /** 544dad0d04fSFariya Fatima * rsi_mac80211_set_key() - This function sets type of key to be loaded. 545dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 546dad0d04fSFariya Fatima * @cmd: enum set_key_cmd. 547dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 548dad0d04fSFariya Fatima * @sta: Pointer to the ieee80211_sta structure. 549dad0d04fSFariya Fatima * @key: Pointer to the ieee80211_key_conf structure. 550dad0d04fSFariya Fatima * 551dad0d04fSFariya Fatima * Return: status: 0 on success, negative error code on failure. 552dad0d04fSFariya Fatima */ 553dad0d04fSFariya Fatima static int rsi_mac80211_set_key(struct ieee80211_hw *hw, 554dad0d04fSFariya Fatima enum set_key_cmd cmd, 555dad0d04fSFariya Fatima struct ieee80211_vif *vif, 556dad0d04fSFariya Fatima struct ieee80211_sta *sta, 557dad0d04fSFariya Fatima struct ieee80211_key_conf *key) 558dad0d04fSFariya Fatima { 559dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 560dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 561dad0d04fSFariya Fatima struct security_info *secinfo = &common->secinfo; 562dad0d04fSFariya Fatima int status; 563dad0d04fSFariya Fatima 564dad0d04fSFariya Fatima mutex_lock(&common->mutex); 565dad0d04fSFariya Fatima switch (cmd) { 566dad0d04fSFariya Fatima case SET_KEY: 567dad0d04fSFariya Fatima secinfo->security_enable = true; 568dad0d04fSFariya Fatima status = rsi_hal_key_config(hw, vif, key); 569dad0d04fSFariya Fatima if (status) { 570dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 571dad0d04fSFariya Fatima return status; 572dad0d04fSFariya Fatima } 573dad0d04fSFariya Fatima 574dad0d04fSFariya Fatima if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 575dad0d04fSFariya Fatima secinfo->ptk_cipher = key->cipher; 576dad0d04fSFariya Fatima else 577dad0d04fSFariya Fatima secinfo->gtk_cipher = key->cipher; 578dad0d04fSFariya Fatima 579dad0d04fSFariya Fatima key->hw_key_idx = key->keyidx; 580dad0d04fSFariya Fatima key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; 581dad0d04fSFariya Fatima 582dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: RSI set_key\n", __func__); 583dad0d04fSFariya Fatima break; 584dad0d04fSFariya Fatima 585dad0d04fSFariya Fatima case DISABLE_KEY: 586dad0d04fSFariya Fatima secinfo->security_enable = false; 587dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: RSI del key\n", __func__); 588dad0d04fSFariya Fatima memset(key, 0, sizeof(struct ieee80211_key_conf)); 589dad0d04fSFariya Fatima status = rsi_hal_key_config(hw, vif, key); 590dad0d04fSFariya Fatima break; 591dad0d04fSFariya Fatima 592dad0d04fSFariya Fatima default: 593dad0d04fSFariya Fatima status = -EOPNOTSUPP; 594dad0d04fSFariya Fatima break; 595dad0d04fSFariya Fatima } 596dad0d04fSFariya Fatima 597dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 598dad0d04fSFariya Fatima return status; 599dad0d04fSFariya Fatima } 600dad0d04fSFariya Fatima 601dad0d04fSFariya Fatima /** 602dad0d04fSFariya Fatima * rsi_mac80211_ampdu_action() - This function selects the AMPDU action for 603dad0d04fSFariya Fatima * the corresponding mlme_action flag and 604dad0d04fSFariya Fatima * informs the f/w regarding this. 605dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 606dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 607dad0d04fSFariya Fatima * @action: ieee80211_ampdu_mlme_action enum. 608dad0d04fSFariya Fatima * @sta: Pointer to the ieee80211_sta structure. 609dad0d04fSFariya Fatima * @tid: Traffic identifier. 610dad0d04fSFariya Fatima * @ssn: Pointer to ssn value. 611dad0d04fSFariya Fatima * @buf_size: Buffer size (for kernel version > 2.6.38). 612dad0d04fSFariya Fatima * 613dad0d04fSFariya Fatima * Return: status: 0 on success, negative error code on failure. 614dad0d04fSFariya Fatima */ 615dad0d04fSFariya Fatima static int rsi_mac80211_ampdu_action(struct ieee80211_hw *hw, 616dad0d04fSFariya Fatima struct ieee80211_vif *vif, 617dad0d04fSFariya Fatima enum ieee80211_ampdu_mlme_action action, 618dad0d04fSFariya Fatima struct ieee80211_sta *sta, 619dad0d04fSFariya Fatima unsigned short tid, 620dad0d04fSFariya Fatima unsigned short *ssn, 621dad0d04fSFariya Fatima unsigned char buf_size) 622dad0d04fSFariya Fatima { 623dad0d04fSFariya Fatima int status = -EOPNOTSUPP; 624dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 625dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 626dad0d04fSFariya Fatima u16 seq_no = 0; 627dad0d04fSFariya Fatima u8 ii = 0; 628dad0d04fSFariya Fatima 629dad0d04fSFariya Fatima for (ii = 0; ii < RSI_MAX_VIFS; ii++) { 630dad0d04fSFariya Fatima if (vif == adapter->vifs[ii]) 631dad0d04fSFariya Fatima break; 632dad0d04fSFariya Fatima } 633dad0d04fSFariya Fatima 634dad0d04fSFariya Fatima mutex_lock(&common->mutex); 635dad0d04fSFariya Fatima rsi_dbg(INFO_ZONE, "%s: AMPDU action %d called\n", __func__, action); 636dad0d04fSFariya Fatima if (ssn != NULL) 637dad0d04fSFariya Fatima seq_no = *ssn; 638dad0d04fSFariya Fatima 639dad0d04fSFariya Fatima switch (action) { 640dad0d04fSFariya Fatima case IEEE80211_AMPDU_RX_START: 641dad0d04fSFariya Fatima status = rsi_send_aggregation_params_frame(common, 642dad0d04fSFariya Fatima tid, 643dad0d04fSFariya Fatima seq_no, 644dad0d04fSFariya Fatima buf_size, 645dad0d04fSFariya Fatima STA_RX_ADDBA_DONE); 646dad0d04fSFariya Fatima break; 647dad0d04fSFariya Fatima 648dad0d04fSFariya Fatima case IEEE80211_AMPDU_RX_STOP: 649dad0d04fSFariya Fatima status = rsi_send_aggregation_params_frame(common, 650dad0d04fSFariya Fatima tid, 651dad0d04fSFariya Fatima 0, 652dad0d04fSFariya Fatima buf_size, 653dad0d04fSFariya Fatima STA_RX_DELBA); 654dad0d04fSFariya Fatima break; 655dad0d04fSFariya Fatima 656dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_START: 657dad0d04fSFariya Fatima common->vif_info[ii].seq_start = seq_no; 658dad0d04fSFariya Fatima ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); 6595f407acbSJahnavi Meher status = 0; 660dad0d04fSFariya Fatima break; 661dad0d04fSFariya Fatima 662dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_STOP_CONT: 663dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_STOP_FLUSH: 664dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 665dad0d04fSFariya Fatima status = rsi_send_aggregation_params_frame(common, 666dad0d04fSFariya Fatima tid, 667dad0d04fSFariya Fatima seq_no, 668dad0d04fSFariya Fatima buf_size, 669dad0d04fSFariya Fatima STA_TX_DELBA); 670dad0d04fSFariya Fatima if (!status) 671dad0d04fSFariya Fatima ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 672dad0d04fSFariya Fatima break; 673dad0d04fSFariya Fatima 674dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_OPERATIONAL: 675dad0d04fSFariya Fatima status = rsi_send_aggregation_params_frame(common, 676dad0d04fSFariya Fatima tid, 677dad0d04fSFariya Fatima common->vif_info[ii] 678dad0d04fSFariya Fatima .seq_start, 679dad0d04fSFariya Fatima buf_size, 680dad0d04fSFariya Fatima STA_TX_ADDBA_DONE); 681dad0d04fSFariya Fatima break; 682dad0d04fSFariya Fatima 683dad0d04fSFariya Fatima default: 684dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: Uknown AMPDU action\n", __func__); 685dad0d04fSFariya Fatima break; 686dad0d04fSFariya Fatima } 687dad0d04fSFariya Fatima 688dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 689dad0d04fSFariya Fatima return status; 690dad0d04fSFariya Fatima } 691dad0d04fSFariya Fatima 692dad0d04fSFariya Fatima /** 693dad0d04fSFariya Fatima * rsi_mac80211_set_rts_threshold() - This function sets rts threshold value. 694dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 695dad0d04fSFariya Fatima * @value: Rts threshold value. 696dad0d04fSFariya Fatima * 697dad0d04fSFariya Fatima * Return: 0 on success. 698dad0d04fSFariya Fatima */ 699dad0d04fSFariya Fatima static int rsi_mac80211_set_rts_threshold(struct ieee80211_hw *hw, 700dad0d04fSFariya Fatima u32 value) 701dad0d04fSFariya Fatima { 702dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 703dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 704dad0d04fSFariya Fatima 705dad0d04fSFariya Fatima mutex_lock(&common->mutex); 706dad0d04fSFariya Fatima common->rts_threshold = value; 707dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 708dad0d04fSFariya Fatima 709dad0d04fSFariya Fatima return 0; 710dad0d04fSFariya Fatima } 711dad0d04fSFariya Fatima 712dad0d04fSFariya Fatima /** 713dad0d04fSFariya Fatima * rsi_mac80211_set_rate_mask() - This function sets bitrate_mask to be used. 714dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure 715dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 716dad0d04fSFariya Fatima * @mask: Pointer to the cfg80211_bitrate_mask structure. 717dad0d04fSFariya Fatima * 718dad0d04fSFariya Fatima * Return: 0 on success. 719dad0d04fSFariya Fatima */ 720dad0d04fSFariya Fatima static int rsi_mac80211_set_rate_mask(struct ieee80211_hw *hw, 721dad0d04fSFariya Fatima struct ieee80211_vif *vif, 722dad0d04fSFariya Fatima const struct cfg80211_bitrate_mask *mask) 723dad0d04fSFariya Fatima { 724dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 725dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 726dad0d04fSFariya Fatima 727dad0d04fSFariya Fatima mutex_lock(&common->mutex); 728dad0d04fSFariya Fatima 729dad0d04fSFariya Fatima common->fixedrate_mask[IEEE80211_BAND_2GHZ] = 0; 730dad0d04fSFariya Fatima 731dad0d04fSFariya Fatima if (mask->control[IEEE80211_BAND_2GHZ].legacy == 0xfff) { 732dad0d04fSFariya Fatima common->fixedrate_mask[IEEE80211_BAND_2GHZ] = 733dad0d04fSFariya Fatima (mask->control[IEEE80211_BAND_2GHZ].ht_mcs[0] << 12); 734dad0d04fSFariya Fatima } else { 735dad0d04fSFariya Fatima common->fixedrate_mask[IEEE80211_BAND_2GHZ] = 736dad0d04fSFariya Fatima mask->control[IEEE80211_BAND_2GHZ].legacy; 737dad0d04fSFariya Fatima } 738dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 739dad0d04fSFariya Fatima 740dad0d04fSFariya Fatima return 0; 741dad0d04fSFariya Fatima } 742dad0d04fSFariya Fatima 743dad0d04fSFariya Fatima /** 744dad0d04fSFariya Fatima * rsi_fill_rx_status() - This function fills rx status in 745dad0d04fSFariya Fatima * ieee80211_rx_status structure. 746dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 747dad0d04fSFariya Fatima * @skb: Pointer to the socket buffer structure. 748dad0d04fSFariya Fatima * @common: Pointer to the driver private structure. 749dad0d04fSFariya Fatima * @rxs: Pointer to the ieee80211_rx_status structure. 750dad0d04fSFariya Fatima * 751dad0d04fSFariya Fatima * Return: None. 752dad0d04fSFariya Fatima */ 753dad0d04fSFariya Fatima static void rsi_fill_rx_status(struct ieee80211_hw *hw, 754dad0d04fSFariya Fatima struct sk_buff *skb, 755dad0d04fSFariya Fatima struct rsi_common *common, 756dad0d04fSFariya Fatima struct ieee80211_rx_status *rxs) 757dad0d04fSFariya Fatima { 758dad0d04fSFariya Fatima struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 759dad0d04fSFariya Fatima struct skb_info *rx_params = (struct skb_info *)info->driver_data; 760dad0d04fSFariya Fatima struct ieee80211_hdr *hdr; 761dad0d04fSFariya Fatima char rssi = rx_params->rssi; 762dad0d04fSFariya Fatima u8 hdrlen = 0; 763dad0d04fSFariya Fatima u8 channel = rx_params->channel; 764dad0d04fSFariya Fatima s32 freq; 765dad0d04fSFariya Fatima 766dad0d04fSFariya Fatima hdr = ((struct ieee80211_hdr *)(skb->data)); 767dad0d04fSFariya Fatima hdrlen = ieee80211_hdrlen(hdr->frame_control); 768dad0d04fSFariya Fatima 769dad0d04fSFariya Fatima memset(info, 0, sizeof(struct ieee80211_tx_info)); 770dad0d04fSFariya Fatima 771dad0d04fSFariya Fatima rxs->signal = -(rssi); 772dad0d04fSFariya Fatima 773dad0d04fSFariya Fatima if (channel <= 14) 774dad0d04fSFariya Fatima rxs->band = IEEE80211_BAND_2GHZ; 775dad0d04fSFariya Fatima else 776dad0d04fSFariya Fatima rxs->band = IEEE80211_BAND_5GHZ; 777dad0d04fSFariya Fatima 778dad0d04fSFariya Fatima freq = ieee80211_channel_to_frequency(channel, rxs->band); 779dad0d04fSFariya Fatima 780dad0d04fSFariya Fatima if (freq) 781dad0d04fSFariya Fatima rxs->freq = freq; 782dad0d04fSFariya Fatima 783dad0d04fSFariya Fatima if (ieee80211_has_protected(hdr->frame_control)) { 784dad0d04fSFariya Fatima if (rsi_is_cipher_wep(common)) { 785dad0d04fSFariya Fatima memmove(skb->data + 4, skb->data, hdrlen); 786dad0d04fSFariya Fatima skb_pull(skb, 4); 787dad0d04fSFariya Fatima } else { 788dad0d04fSFariya Fatima memmove(skb->data + 8, skb->data, hdrlen); 789dad0d04fSFariya Fatima skb_pull(skb, 8); 790dad0d04fSFariya Fatima rxs->flag |= RX_FLAG_MMIC_STRIPPED; 791dad0d04fSFariya Fatima } 792dad0d04fSFariya Fatima rxs->flag |= RX_FLAG_DECRYPTED; 793dad0d04fSFariya Fatima rxs->flag |= RX_FLAG_IV_STRIPPED; 794dad0d04fSFariya Fatima } 795dad0d04fSFariya Fatima } 796dad0d04fSFariya Fatima 797dad0d04fSFariya Fatima /** 798dad0d04fSFariya Fatima * rsi_indicate_pkt_to_os() - This function sends recieved packet to mac80211. 799dad0d04fSFariya Fatima * @common: Pointer to the driver private structure. 800dad0d04fSFariya Fatima * @skb: Pointer to the socket buffer structure. 801dad0d04fSFariya Fatima * 802dad0d04fSFariya Fatima * Return: None. 803dad0d04fSFariya Fatima */ 804dad0d04fSFariya Fatima void rsi_indicate_pkt_to_os(struct rsi_common *common, 805dad0d04fSFariya Fatima struct sk_buff *skb) 806dad0d04fSFariya Fatima { 807dad0d04fSFariya Fatima struct rsi_hw *adapter = common->priv; 808dad0d04fSFariya Fatima struct ieee80211_hw *hw = adapter->hw; 809dad0d04fSFariya Fatima struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb); 810dad0d04fSFariya Fatima 811dad0d04fSFariya Fatima if ((common->iface_down) || (!adapter->sc_nvifs)) { 812dad0d04fSFariya Fatima dev_kfree_skb(skb); 813dad0d04fSFariya Fatima return; 814dad0d04fSFariya Fatima } 815dad0d04fSFariya Fatima 816dad0d04fSFariya Fatima /* filling in the ieee80211_rx_status flags */ 817dad0d04fSFariya Fatima rsi_fill_rx_status(hw, skb, common, rx_status); 818dad0d04fSFariya Fatima 819dad0d04fSFariya Fatima ieee80211_rx_irqsafe(hw, skb); 820dad0d04fSFariya Fatima } 821dad0d04fSFariya Fatima 822dad0d04fSFariya Fatima static void rsi_set_min_rate(struct ieee80211_hw *hw, 823dad0d04fSFariya Fatima struct ieee80211_sta *sta, 824dad0d04fSFariya Fatima struct rsi_common *common) 825dad0d04fSFariya Fatima { 826dad0d04fSFariya Fatima u8 band = hw->conf.chandef.chan->band; 827dad0d04fSFariya Fatima u8 ii; 828dad0d04fSFariya Fatima u32 rate_bitmap; 829dad0d04fSFariya Fatima bool matched = false; 830dad0d04fSFariya Fatima 831dad0d04fSFariya Fatima common->bitrate_mask[band] = sta->supp_rates[band]; 832dad0d04fSFariya Fatima 833dad0d04fSFariya Fatima rate_bitmap = (common->fixedrate_mask[band] & sta->supp_rates[band]); 834dad0d04fSFariya Fatima 835dad0d04fSFariya Fatima if (rate_bitmap & 0xfff) { 836dad0d04fSFariya Fatima /* Find out the min rate */ 837dad0d04fSFariya Fatima for (ii = 0; ii < ARRAY_SIZE(rsi_rates); ii++) { 838dad0d04fSFariya Fatima if (rate_bitmap & BIT(ii)) { 839dad0d04fSFariya Fatima common->min_rate = rsi_rates[ii].hw_value; 840dad0d04fSFariya Fatima matched = true; 841dad0d04fSFariya Fatima break; 842dad0d04fSFariya Fatima } 843dad0d04fSFariya Fatima } 844dad0d04fSFariya Fatima } 845dad0d04fSFariya Fatima 846dad0d04fSFariya Fatima common->vif_info[0].is_ht = sta->ht_cap.ht_supported; 847dad0d04fSFariya Fatima 848dad0d04fSFariya Fatima if ((common->vif_info[0].is_ht) && (rate_bitmap >> 12)) { 849dad0d04fSFariya Fatima for (ii = 0; ii < ARRAY_SIZE(rsi_mcsrates); ii++) { 850dad0d04fSFariya Fatima if ((rate_bitmap >> 12) & BIT(ii)) { 851dad0d04fSFariya Fatima common->min_rate = rsi_mcsrates[ii]; 852dad0d04fSFariya Fatima matched = true; 853dad0d04fSFariya Fatima break; 854dad0d04fSFariya Fatima } 855dad0d04fSFariya Fatima } 856dad0d04fSFariya Fatima } 857dad0d04fSFariya Fatima 858dad0d04fSFariya Fatima if (!matched) 859dad0d04fSFariya Fatima common->min_rate = 0xffff; 860dad0d04fSFariya Fatima } 861dad0d04fSFariya Fatima 862dad0d04fSFariya Fatima /** 863dad0d04fSFariya Fatima * rsi_mac80211_sta_add() - This function notifies driver about a peer getting 864dad0d04fSFariya Fatima * connected. 865dad0d04fSFariya Fatima * @hw: pointer to the ieee80211_hw structure. 866dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 867dad0d04fSFariya Fatima * @sta: Pointer to the ieee80211_sta structure. 868dad0d04fSFariya Fatima * 869dad0d04fSFariya Fatima * Return: 0 on success, -1 on failure. 870dad0d04fSFariya Fatima */ 871dad0d04fSFariya Fatima static int rsi_mac80211_sta_add(struct ieee80211_hw *hw, 872dad0d04fSFariya Fatima struct ieee80211_vif *vif, 873dad0d04fSFariya Fatima struct ieee80211_sta *sta) 874dad0d04fSFariya Fatima { 875dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 876dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 877dad0d04fSFariya Fatima 878dad0d04fSFariya Fatima mutex_lock(&common->mutex); 879dad0d04fSFariya Fatima 880dad0d04fSFariya Fatima rsi_set_min_rate(hw, sta, common); 881dad0d04fSFariya Fatima 882dad0d04fSFariya Fatima if ((sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20) || 883dad0d04fSFariya Fatima (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40)) { 884dad0d04fSFariya Fatima common->vif_info[0].sgi = true; 885dad0d04fSFariya Fatima } 886dad0d04fSFariya Fatima 887dad0d04fSFariya Fatima if (sta->ht_cap.ht_supported) 888dad0d04fSFariya Fatima ieee80211_start_tx_ba_session(sta, 0, 0); 889dad0d04fSFariya Fatima 890dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 891dad0d04fSFariya Fatima 892dad0d04fSFariya Fatima return 0; 893dad0d04fSFariya Fatima } 894dad0d04fSFariya Fatima 895dad0d04fSFariya Fatima /** 896dad0d04fSFariya Fatima * rsi_mac80211_sta_remove() - This function notifies driver about a peer 897dad0d04fSFariya Fatima * getting disconnected. 898dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 899dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 900dad0d04fSFariya Fatima * @sta: Pointer to the ieee80211_sta structure. 901dad0d04fSFariya Fatima * 902dad0d04fSFariya Fatima * Return: 0 on success, -1 on failure. 903dad0d04fSFariya Fatima */ 904dad0d04fSFariya Fatima static int rsi_mac80211_sta_remove(struct ieee80211_hw *hw, 905dad0d04fSFariya Fatima struct ieee80211_vif *vif, 906dad0d04fSFariya Fatima struct ieee80211_sta *sta) 907dad0d04fSFariya Fatima { 908dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 909dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 910dad0d04fSFariya Fatima 911dad0d04fSFariya Fatima mutex_lock(&common->mutex); 912dad0d04fSFariya Fatima /* Resetting all the fields to default values */ 913dad0d04fSFariya Fatima common->bitrate_mask[IEEE80211_BAND_2GHZ] = 0; 914dad0d04fSFariya Fatima common->bitrate_mask[IEEE80211_BAND_5GHZ] = 0; 915dad0d04fSFariya Fatima common->min_rate = 0xffff; 916dad0d04fSFariya Fatima common->vif_info[0].is_ht = false; 917dad0d04fSFariya Fatima common->vif_info[0].sgi = false; 918dad0d04fSFariya Fatima common->vif_info[0].seq_start = 0; 919dad0d04fSFariya Fatima common->secinfo.ptk_cipher = 0; 920dad0d04fSFariya Fatima common->secinfo.gtk_cipher = 0; 921dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 922dad0d04fSFariya Fatima 923dad0d04fSFariya Fatima return 0; 924dad0d04fSFariya Fatima } 925dad0d04fSFariya Fatima 926dad0d04fSFariya Fatima static struct ieee80211_ops mac80211_ops = { 927dad0d04fSFariya Fatima .tx = rsi_mac80211_tx, 928dad0d04fSFariya Fatima .start = rsi_mac80211_start, 929dad0d04fSFariya Fatima .stop = rsi_mac80211_stop, 930dad0d04fSFariya Fatima .add_interface = rsi_mac80211_add_interface, 931dad0d04fSFariya Fatima .remove_interface = rsi_mac80211_remove_interface, 932dad0d04fSFariya Fatima .config = rsi_mac80211_config, 933dad0d04fSFariya Fatima .bss_info_changed = rsi_mac80211_bss_info_changed, 934dad0d04fSFariya Fatima .conf_tx = rsi_mac80211_conf_tx, 935dad0d04fSFariya Fatima .configure_filter = rsi_mac80211_conf_filter, 936dad0d04fSFariya Fatima .set_key = rsi_mac80211_set_key, 937dad0d04fSFariya Fatima .set_rts_threshold = rsi_mac80211_set_rts_threshold, 938dad0d04fSFariya Fatima .set_bitrate_mask = rsi_mac80211_set_rate_mask, 939dad0d04fSFariya Fatima .ampdu_action = rsi_mac80211_ampdu_action, 940dad0d04fSFariya Fatima .sta_add = rsi_mac80211_sta_add, 941dad0d04fSFariya Fatima .sta_remove = rsi_mac80211_sta_remove, 942dad0d04fSFariya Fatima }; 943dad0d04fSFariya Fatima 944dad0d04fSFariya Fatima /** 945dad0d04fSFariya Fatima * rsi_mac80211_attach() - This function is used to initialize Mac80211 stack. 946dad0d04fSFariya Fatima * @common: Pointer to the driver private structure. 947dad0d04fSFariya Fatima * 948dad0d04fSFariya Fatima * Return: 0 on success, -1 on failure. 949dad0d04fSFariya Fatima */ 950dad0d04fSFariya Fatima int rsi_mac80211_attach(struct rsi_common *common) 951dad0d04fSFariya Fatima { 952dad0d04fSFariya Fatima int status = 0; 953dad0d04fSFariya Fatima struct ieee80211_hw *hw = NULL; 954dad0d04fSFariya Fatima struct wiphy *wiphy = NULL; 955dad0d04fSFariya Fatima struct rsi_hw *adapter = common->priv; 956dad0d04fSFariya Fatima u8 addr_mask[ETH_ALEN] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x3}; 957dad0d04fSFariya Fatima 958dad0d04fSFariya Fatima rsi_dbg(INIT_ZONE, "%s: Performing mac80211 attach\n", __func__); 959dad0d04fSFariya Fatima 960dad0d04fSFariya Fatima hw = ieee80211_alloc_hw(sizeof(struct rsi_hw), &mac80211_ops); 961dad0d04fSFariya Fatima if (!hw) { 962dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: ieee80211 hw alloc failed\n", __func__); 963dad0d04fSFariya Fatima return -ENOMEM; 964dad0d04fSFariya Fatima } 965dad0d04fSFariya Fatima 966dad0d04fSFariya Fatima wiphy = hw->wiphy; 967dad0d04fSFariya Fatima 968dad0d04fSFariya Fatima SET_IEEE80211_DEV(hw, adapter->device); 969dad0d04fSFariya Fatima 970dad0d04fSFariya Fatima hw->priv = adapter; 971dad0d04fSFariya Fatima adapter->hw = hw; 972dad0d04fSFariya Fatima 973dad0d04fSFariya Fatima hw->flags = IEEE80211_HW_SIGNAL_DBM | 974dad0d04fSFariya Fatima IEEE80211_HW_HAS_RATE_CONTROL | 975dad0d04fSFariya Fatima IEEE80211_HW_AMPDU_AGGREGATION | 976dad0d04fSFariya Fatima 0; 977dad0d04fSFariya Fatima 978dad0d04fSFariya Fatima hw->queues = MAX_HW_QUEUES; 979dad0d04fSFariya Fatima hw->extra_tx_headroom = RSI_NEEDED_HEADROOM; 980dad0d04fSFariya Fatima 981dad0d04fSFariya Fatima hw->max_rates = 1; 982dad0d04fSFariya Fatima hw->max_rate_tries = MAX_RETRIES; 983dad0d04fSFariya Fatima 984dad0d04fSFariya Fatima hw->max_tx_aggregation_subframes = 6; 985dad0d04fSFariya Fatima rsi_register_rates_channels(adapter, IEEE80211_BAND_2GHZ); 986dad0d04fSFariya Fatima hw->rate_control_algorithm = "AARF"; 987dad0d04fSFariya Fatima 988dad0d04fSFariya Fatima SET_IEEE80211_PERM_ADDR(hw, common->mac_addr); 989dad0d04fSFariya Fatima ether_addr_copy(hw->wiphy->addr_mask, addr_mask); 990dad0d04fSFariya Fatima 991dad0d04fSFariya Fatima wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); 992dad0d04fSFariya Fatima wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 993dad0d04fSFariya Fatima wiphy->retry_short = RETRY_SHORT; 994dad0d04fSFariya Fatima wiphy->retry_long = RETRY_LONG; 995dad0d04fSFariya Fatima wiphy->frag_threshold = IEEE80211_MAX_FRAG_THRESHOLD; 996dad0d04fSFariya Fatima wiphy->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 997dad0d04fSFariya Fatima wiphy->flags = 0; 998dad0d04fSFariya Fatima 999dad0d04fSFariya Fatima wiphy->available_antennas_rx = 1; 1000dad0d04fSFariya Fatima wiphy->available_antennas_tx = 1; 1001dad0d04fSFariya Fatima wiphy->bands[IEEE80211_BAND_2GHZ] = 1002dad0d04fSFariya Fatima &adapter->sbands[IEEE80211_BAND_2GHZ]; 1003dad0d04fSFariya Fatima 1004dad0d04fSFariya Fatima status = ieee80211_register_hw(hw); 1005dad0d04fSFariya Fatima if (status) 1006dad0d04fSFariya Fatima return status; 1007dad0d04fSFariya Fatima 1008dad0d04fSFariya Fatima return rsi_init_dbgfs(adapter); 1009dad0d04fSFariya Fatima } 1010