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" 21ce86893fSKarun Eagalapati #include "rsi_ps.h" 22dad0d04fSFariya Fatima 23dad0d04fSFariya Fatima static const struct ieee80211_channel rsi_2ghz_channels[] = { 2457fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2412, 25dad0d04fSFariya Fatima .hw_value = 1 }, /* Channel 1 */ 2657fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2417, 27dad0d04fSFariya Fatima .hw_value = 2 }, /* Channel 2 */ 2857fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2422, 29dad0d04fSFariya Fatima .hw_value = 3 }, /* Channel 3 */ 3057fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2427, 31dad0d04fSFariya Fatima .hw_value = 4 }, /* Channel 4 */ 3257fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2432, 33dad0d04fSFariya Fatima .hw_value = 5 }, /* Channel 5 */ 3457fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2437, 35dad0d04fSFariya Fatima .hw_value = 6 }, /* Channel 6 */ 3657fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2442, 37dad0d04fSFariya Fatima .hw_value = 7 }, /* Channel 7 */ 3857fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2447, 39dad0d04fSFariya Fatima .hw_value = 8 }, /* Channel 8 */ 4057fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2452, 41dad0d04fSFariya Fatima .hw_value = 9 }, /* Channel 9 */ 4257fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2457, 43dad0d04fSFariya Fatima .hw_value = 10 }, /* Channel 10 */ 4457fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2462, 45dad0d04fSFariya Fatima .hw_value = 11 }, /* Channel 11 */ 4657fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2467, 47dad0d04fSFariya Fatima .hw_value = 12 }, /* Channel 12 */ 4857fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2472, 49dad0d04fSFariya Fatima .hw_value = 13 }, /* Channel 13 */ 5057fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2484, 51dad0d04fSFariya Fatima .hw_value = 14 }, /* Channel 14 */ 52dad0d04fSFariya Fatima }; 53dad0d04fSFariya Fatima 54dad0d04fSFariya Fatima static const struct ieee80211_channel rsi_5ghz_channels[] = { 5557fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5180, 56dad0d04fSFariya Fatima .hw_value = 36, }, /* Channel 36 */ 5757fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5200, 58dad0d04fSFariya Fatima .hw_value = 40, }, /* Channel 40 */ 5957fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5220, 60dad0d04fSFariya Fatima .hw_value = 44, }, /* Channel 44 */ 6157fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5240, 62dad0d04fSFariya Fatima .hw_value = 48, }, /* Channel 48 */ 6357fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5260, 64dad0d04fSFariya Fatima .hw_value = 52, }, /* Channel 52 */ 6557fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5280, 66dad0d04fSFariya Fatima .hw_value = 56, }, /* Channel 56 */ 6757fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5300, 68dad0d04fSFariya Fatima .hw_value = 60, }, /* Channel 60 */ 6957fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5320, 70dad0d04fSFariya Fatima .hw_value = 64, }, /* Channel 64 */ 7157fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5500, 72dad0d04fSFariya Fatima .hw_value = 100, }, /* Channel 100 */ 7357fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5520, 74dad0d04fSFariya Fatima .hw_value = 104, }, /* Channel 104 */ 7557fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5540, 76dad0d04fSFariya Fatima .hw_value = 108, }, /* Channel 108 */ 7757fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5560, 78dad0d04fSFariya Fatima .hw_value = 112, }, /* Channel 112 */ 7957fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5580, 80dad0d04fSFariya Fatima .hw_value = 116, }, /* Channel 116 */ 8157fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5600, 82dad0d04fSFariya Fatima .hw_value = 120, }, /* Channel 120 */ 8357fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5620, 84dad0d04fSFariya Fatima .hw_value = 124, }, /* Channel 124 */ 8557fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5640, 86dad0d04fSFariya Fatima .hw_value = 128, }, /* Channel 128 */ 8757fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5660, 88dad0d04fSFariya Fatima .hw_value = 132, }, /* Channel 132 */ 8957fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5680, 90dad0d04fSFariya Fatima .hw_value = 136, }, /* Channel 136 */ 9157fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5700, 92dad0d04fSFariya Fatima .hw_value = 140, }, /* Channel 140 */ 9357fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5745, 94dad0d04fSFariya Fatima .hw_value = 149, }, /* Channel 149 */ 9557fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5765, 96dad0d04fSFariya Fatima .hw_value = 153, }, /* Channel 153 */ 9757fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5785, 98dad0d04fSFariya Fatima .hw_value = 157, }, /* Channel 157 */ 9957fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5805, 100dad0d04fSFariya Fatima .hw_value = 161, }, /* Channel 161 */ 10157fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5825, 102dad0d04fSFariya Fatima .hw_value = 165, }, /* Channel 165 */ 103dad0d04fSFariya Fatima }; 104dad0d04fSFariya Fatima 105dad0d04fSFariya Fatima struct ieee80211_rate rsi_rates[12] = { 106dad0d04fSFariya Fatima { .bitrate = STD_RATE_01 * 5, .hw_value = RSI_RATE_1 }, 107dad0d04fSFariya Fatima { .bitrate = STD_RATE_02 * 5, .hw_value = RSI_RATE_2 }, 108dad0d04fSFariya Fatima { .bitrate = STD_RATE_5_5 * 5, .hw_value = RSI_RATE_5_5 }, 109dad0d04fSFariya Fatima { .bitrate = STD_RATE_11 * 5, .hw_value = RSI_RATE_11 }, 110dad0d04fSFariya Fatima { .bitrate = STD_RATE_06 * 5, .hw_value = RSI_RATE_6 }, 111dad0d04fSFariya Fatima { .bitrate = STD_RATE_09 * 5, .hw_value = RSI_RATE_9 }, 112dad0d04fSFariya Fatima { .bitrate = STD_RATE_12 * 5, .hw_value = RSI_RATE_12 }, 113dad0d04fSFariya Fatima { .bitrate = STD_RATE_18 * 5, .hw_value = RSI_RATE_18 }, 114dad0d04fSFariya Fatima { .bitrate = STD_RATE_24 * 5, .hw_value = RSI_RATE_24 }, 115dad0d04fSFariya Fatima { .bitrate = STD_RATE_36 * 5, .hw_value = RSI_RATE_36 }, 116dad0d04fSFariya Fatima { .bitrate = STD_RATE_48 * 5, .hw_value = RSI_RATE_48 }, 117dad0d04fSFariya Fatima { .bitrate = STD_RATE_54 * 5, .hw_value = RSI_RATE_54 }, 118dad0d04fSFariya Fatima }; 119dad0d04fSFariya Fatima 120dad0d04fSFariya Fatima const u16 rsi_mcsrates[8] = { 121dad0d04fSFariya Fatima RSI_RATE_MCS0, RSI_RATE_MCS1, RSI_RATE_MCS2, RSI_RATE_MCS3, 122dad0d04fSFariya Fatima RSI_RATE_MCS4, RSI_RATE_MCS5, RSI_RATE_MCS6, RSI_RATE_MCS7 123dad0d04fSFariya Fatima }; 124dad0d04fSFariya Fatima 1256da1e00aSPrameela Rani Garnepudi static const u32 rsi_max_ap_stas[16] = { 1266da1e00aSPrameela Rani Garnepudi 32, /* 1 - Wi-Fi alone */ 1276da1e00aSPrameela Rani Garnepudi 0, /* 2 */ 1286da1e00aSPrameela Rani Garnepudi 0, /* 3 */ 1296da1e00aSPrameela Rani Garnepudi 0, /* 4 - BT EDR alone */ 1306da1e00aSPrameela Rani Garnepudi 4, /* 5 - STA + BT EDR */ 1316da1e00aSPrameela Rani Garnepudi 32, /* 6 - AP + BT EDR */ 1326da1e00aSPrameela Rani Garnepudi 0, /* 7 */ 1336da1e00aSPrameela Rani Garnepudi 0, /* 8 - BT LE alone */ 1346da1e00aSPrameela Rani Garnepudi 4, /* 9 - STA + BE LE */ 1356da1e00aSPrameela Rani Garnepudi 0, /* 10 */ 1366da1e00aSPrameela Rani Garnepudi 0, /* 11 */ 1376da1e00aSPrameela Rani Garnepudi 0, /* 12 */ 1386da1e00aSPrameela Rani Garnepudi 1, /* 13 - STA + BT Dual */ 1396da1e00aSPrameela Rani Garnepudi 4, /* 14 - AP + BT Dual */ 1406da1e00aSPrameela Rani Garnepudi }; 1416da1e00aSPrameela Rani Garnepudi 142dad0d04fSFariya Fatima /** 143dad0d04fSFariya Fatima * rsi_is_cipher_wep() - This function determines if the cipher is WEP or not. 144dad0d04fSFariya Fatima * @common: Pointer to the driver private structure. 145dad0d04fSFariya Fatima * 146dad0d04fSFariya Fatima * Return: If cipher type is WEP, a value of 1 is returned, else 0. 147dad0d04fSFariya Fatima */ 148dad0d04fSFariya Fatima 149dad0d04fSFariya Fatima bool rsi_is_cipher_wep(struct rsi_common *common) 150dad0d04fSFariya Fatima { 151dad0d04fSFariya Fatima if (((common->secinfo.gtk_cipher == WLAN_CIPHER_SUITE_WEP104) || 152dad0d04fSFariya Fatima (common->secinfo.gtk_cipher == WLAN_CIPHER_SUITE_WEP40)) && 153dad0d04fSFariya Fatima (!common->secinfo.ptk_cipher)) 154dad0d04fSFariya Fatima return true; 155dad0d04fSFariya Fatima else 156dad0d04fSFariya Fatima return false; 157dad0d04fSFariya Fatima } 158dad0d04fSFariya Fatima 159dad0d04fSFariya Fatima /** 160dad0d04fSFariya Fatima * rsi_register_rates_channels() - This function registers channels and rates. 161dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 162dad0d04fSFariya Fatima * @band: Operating band to be set. 163dad0d04fSFariya Fatima * 164dad0d04fSFariya Fatima * Return: None. 165dad0d04fSFariya Fatima */ 166dad0d04fSFariya Fatima static void rsi_register_rates_channels(struct rsi_hw *adapter, int band) 167dad0d04fSFariya Fatima { 168dad0d04fSFariya Fatima struct ieee80211_supported_band *sbands = &adapter->sbands[band]; 169dad0d04fSFariya Fatima void *channels = NULL; 170dad0d04fSFariya Fatima 17157fbcce3SJohannes Berg if (band == NL80211_BAND_2GHZ) { 172dad0d04fSFariya Fatima channels = kmalloc(sizeof(rsi_2ghz_channels), GFP_KERNEL); 173dad0d04fSFariya Fatima memcpy(channels, 174dad0d04fSFariya Fatima rsi_2ghz_channels, 175dad0d04fSFariya Fatima sizeof(rsi_2ghz_channels)); 17657fbcce3SJohannes Berg sbands->band = NL80211_BAND_2GHZ; 177dad0d04fSFariya Fatima sbands->n_channels = ARRAY_SIZE(rsi_2ghz_channels); 178dad0d04fSFariya Fatima sbands->bitrates = rsi_rates; 179dad0d04fSFariya Fatima sbands->n_bitrates = ARRAY_SIZE(rsi_rates); 180dad0d04fSFariya Fatima } else { 181dad0d04fSFariya Fatima channels = kmalloc(sizeof(rsi_5ghz_channels), GFP_KERNEL); 182dad0d04fSFariya Fatima memcpy(channels, 183dad0d04fSFariya Fatima rsi_5ghz_channels, 184dad0d04fSFariya Fatima sizeof(rsi_5ghz_channels)); 18557fbcce3SJohannes Berg sbands->band = NL80211_BAND_5GHZ; 186dad0d04fSFariya Fatima sbands->n_channels = ARRAY_SIZE(rsi_5ghz_channels); 187dad0d04fSFariya Fatima sbands->bitrates = &rsi_rates[4]; 188dad0d04fSFariya Fatima sbands->n_bitrates = ARRAY_SIZE(rsi_rates) - 4; 189dad0d04fSFariya Fatima } 190dad0d04fSFariya Fatima 191dad0d04fSFariya Fatima sbands->channels = channels; 192dad0d04fSFariya Fatima 193dad0d04fSFariya Fatima memset(&sbands->ht_cap, 0, sizeof(struct ieee80211_sta_ht_cap)); 194dad0d04fSFariya Fatima sbands->ht_cap.ht_supported = true; 195dad0d04fSFariya Fatima sbands->ht_cap.cap = (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | 196dad0d04fSFariya Fatima IEEE80211_HT_CAP_SGI_20 | 197dad0d04fSFariya Fatima IEEE80211_HT_CAP_SGI_40); 198e8c58e7aSJahnavi Meher sbands->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K; 199dad0d04fSFariya Fatima sbands->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; 200dad0d04fSFariya Fatima sbands->ht_cap.mcs.rx_mask[0] = 0xff; 201dad0d04fSFariya Fatima sbands->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; 202dad0d04fSFariya Fatima /* sbands->ht_cap.mcs.rx_highest = 0x82; */ 203dad0d04fSFariya Fatima } 204dad0d04fSFariya Fatima 205dad0d04fSFariya Fatima /** 20619d2e619SJahnavi Meher * rsi_mac80211_detach() - This function is used to de-initialize the 207dad0d04fSFariya Fatima * Mac80211 stack. 208dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 209dad0d04fSFariya Fatima * 210dad0d04fSFariya Fatima * Return: None. 211dad0d04fSFariya Fatima */ 212dad0d04fSFariya Fatima void rsi_mac80211_detach(struct rsi_hw *adapter) 213dad0d04fSFariya Fatima { 214dad0d04fSFariya Fatima struct ieee80211_hw *hw = adapter->hw; 215b022539dSPrameela Rani Garnepudi enum nl80211_band band; 216dad0d04fSFariya Fatima 217dad0d04fSFariya Fatima if (hw) { 218dad0d04fSFariya Fatima ieee80211_stop_queues(hw); 219dad0d04fSFariya Fatima ieee80211_unregister_hw(hw); 220dad0d04fSFariya Fatima ieee80211_free_hw(hw); 221dad0d04fSFariya Fatima } 222dad0d04fSFariya Fatima 223b022539dSPrameela Rani Garnepudi for (band = 0; band < NUM_NL80211_BANDS; band++) { 224b022539dSPrameela Rani Garnepudi struct ieee80211_supported_band *sband = 225b022539dSPrameela Rani Garnepudi &adapter->sbands[band]; 226b022539dSPrameela Rani Garnepudi 227b022539dSPrameela Rani Garnepudi kfree(sband->channels); 228b022539dSPrameela Rani Garnepudi } 229b022539dSPrameela Rani Garnepudi 230b022539dSPrameela Rani Garnepudi #ifdef CONFIG_RSI_DEBUGFS 231dad0d04fSFariya Fatima rsi_remove_dbgfs(adapter); 232b022539dSPrameela Rani Garnepudi kfree(adapter->dfsentry); 233b022539dSPrameela Rani Garnepudi #endif 234dad0d04fSFariya Fatima } 235dad0d04fSFariya Fatima EXPORT_SYMBOL_GPL(rsi_mac80211_detach); 236dad0d04fSFariya Fatima 237dad0d04fSFariya Fatima /** 238dad0d04fSFariya Fatima * rsi_indicate_tx_status() - This function indicates the transmit status. 239dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 240dad0d04fSFariya Fatima * @skb: Pointer to the socket buffer structure. 241dad0d04fSFariya Fatima * @status: Status 242dad0d04fSFariya Fatima * 243dad0d04fSFariya Fatima * Return: None. 244dad0d04fSFariya Fatima */ 245dad0d04fSFariya Fatima void rsi_indicate_tx_status(struct rsi_hw *adapter, 246dad0d04fSFariya Fatima struct sk_buff *skb, 247dad0d04fSFariya Fatima int status) 248dad0d04fSFariya Fatima { 249dad0d04fSFariya Fatima struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 2505059afacSPrameela Rani Garnepudi struct skb_info *tx_params; 251dad0d04fSFariya Fatima 2525059afacSPrameela Rani Garnepudi if (!adapter->hw) { 2535059afacSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "##### No MAC #####\n"); 2545059afacSPrameela Rani Garnepudi return; 2555059afacSPrameela Rani Garnepudi } 256dad0d04fSFariya Fatima 257dad0d04fSFariya Fatima if (!status) 258dad0d04fSFariya Fatima info->flags |= IEEE80211_TX_STAT_ACK; 259dad0d04fSFariya Fatima 2605059afacSPrameela Rani Garnepudi tx_params = (struct skb_info *)info->driver_data; 2615059afacSPrameela Rani Garnepudi skb_pull(skb, tx_params->internal_hdr_size); 2625059afacSPrameela Rani Garnepudi memset(info->driver_data, 0, IEEE80211_TX_INFO_DRIVER_DATA_SIZE); 2635059afacSPrameela Rani Garnepudi 264dad0d04fSFariya Fatima ieee80211_tx_status_irqsafe(adapter->hw, skb); 265dad0d04fSFariya Fatima } 266dad0d04fSFariya Fatima 267dad0d04fSFariya Fatima /** 268dad0d04fSFariya Fatima * rsi_mac80211_tx() - This is the handler that 802.11 module calls for each 269dad0d04fSFariya Fatima * transmitted frame.SKB contains the buffer starting 270dad0d04fSFariya Fatima * from the IEEE 802.11 header. 271dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 272dad0d04fSFariya Fatima * @control: Pointer to the ieee80211_tx_control structure 273dad0d04fSFariya Fatima * @skb: Pointer to the socket buffer structure. 274dad0d04fSFariya Fatima * 275dad0d04fSFariya Fatima * Return: None 276dad0d04fSFariya Fatima */ 277dad0d04fSFariya Fatima static void rsi_mac80211_tx(struct ieee80211_hw *hw, 278dad0d04fSFariya Fatima struct ieee80211_tx_control *control, 279dad0d04fSFariya Fatima struct sk_buff *skb) 280dad0d04fSFariya Fatima { 281dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 282dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 283dad0d04fSFariya Fatima 284dad0d04fSFariya Fatima rsi_core_xmit(common, skb); 285dad0d04fSFariya Fatima } 286dad0d04fSFariya Fatima 287dad0d04fSFariya Fatima /** 288dad0d04fSFariya Fatima * rsi_mac80211_start() - This is first handler that 802.11 module calls, since 289dad0d04fSFariya Fatima * the driver init is complete by then, just 290dad0d04fSFariya Fatima * returns success. 291dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 292dad0d04fSFariya Fatima * 293dad0d04fSFariya Fatima * Return: 0 as success. 294dad0d04fSFariya Fatima */ 295dad0d04fSFariya Fatima static int rsi_mac80211_start(struct ieee80211_hw *hw) 296dad0d04fSFariya Fatima { 297dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 298dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 299dad0d04fSFariya Fatima 300edba3532SPavani Muthyala rsi_dbg(ERR_ZONE, "===> Interface UP <===\n"); 301dad0d04fSFariya Fatima mutex_lock(&common->mutex); 302dad0d04fSFariya Fatima common->iface_down = false; 303edba3532SPavani Muthyala wiphy_rfkill_start_polling(hw->wiphy); 304e6d64284SPrameela Rani Garnepudi rsi_send_rx_filter_frame(common, 0); 305edba3532SPavani Muthyala mutex_unlock(&common->mutex); 306e6d64284SPrameela Rani Garnepudi 307dad0d04fSFariya Fatima return 0; 308dad0d04fSFariya Fatima } 309dad0d04fSFariya Fatima 310dad0d04fSFariya Fatima /** 311dad0d04fSFariya Fatima * rsi_mac80211_stop() - This is the last handler that 802.11 module calls. 312dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 313dad0d04fSFariya Fatima * 314dad0d04fSFariya Fatima * Return: None. 315dad0d04fSFariya Fatima */ 316dad0d04fSFariya Fatima static void rsi_mac80211_stop(struct ieee80211_hw *hw) 317dad0d04fSFariya Fatima { 318dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 319dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 320dad0d04fSFariya Fatima 321edba3532SPavani Muthyala rsi_dbg(ERR_ZONE, "===> Interface DOWN <===\n"); 322dad0d04fSFariya Fatima mutex_lock(&common->mutex); 323dad0d04fSFariya Fatima common->iface_down = true; 324edba3532SPavani Muthyala wiphy_rfkill_stop_polling(hw->wiphy); 32586583258SPrameela Rani Garnepudi 32686583258SPrameela Rani Garnepudi /* Block all rx frames */ 32786583258SPrameela Rani Garnepudi rsi_send_rx_filter_frame(common, 0xffff); 32886583258SPrameela Rani Garnepudi 329dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 330dad0d04fSFariya Fatima } 331dad0d04fSFariya Fatima 332dad0d04fSFariya Fatima /** 333dad0d04fSFariya Fatima * rsi_mac80211_add_interface() - This function is called when a netdevice 334dad0d04fSFariya Fatima * attached to the hardware is enabled. 335dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 336dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 337dad0d04fSFariya Fatima * 338dad0d04fSFariya Fatima * Return: ret: 0 on success, negative error code on failure. 339dad0d04fSFariya Fatima */ 340dad0d04fSFariya Fatima static int rsi_mac80211_add_interface(struct ieee80211_hw *hw, 341dad0d04fSFariya Fatima struct ieee80211_vif *vif) 342dad0d04fSFariya Fatima { 343dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 344dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 34503c34c0dSPrameela Rani Garnepudi enum opmode intf_mode; 346dad0d04fSFariya Fatima int ret = -EOPNOTSUPP; 347dad0d04fSFariya Fatima 348db07971dSKarun Eagalapati vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 349dad0d04fSFariya Fatima mutex_lock(&common->mutex); 35003c34c0dSPrameela Rani Garnepudi 35103c34c0dSPrameela Rani Garnepudi if (adapter->sc_nvifs > 1) { 35203c34c0dSPrameela Rani Garnepudi mutex_unlock(&common->mutex); 35303c34c0dSPrameela Rani Garnepudi return -EOPNOTSUPP; 35403c34c0dSPrameela Rani Garnepudi } 35503c34c0dSPrameela Rani Garnepudi 356dad0d04fSFariya Fatima switch (vif->type) { 357dad0d04fSFariya Fatima case NL80211_IFTYPE_STATION: 35803c34c0dSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Station Mode"); 35903c34c0dSPrameela Rani Garnepudi intf_mode = STA_OPMODE; 36003c34c0dSPrameela Rani Garnepudi break; 36103c34c0dSPrameela Rani Garnepudi case NL80211_IFTYPE_AP: 36203c34c0dSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "AP Mode"); 36303c34c0dSPrameela Rani Garnepudi intf_mode = AP_OPMODE; 364dad0d04fSFariya Fatima break; 365dad0d04fSFariya Fatima default: 366dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, 367dad0d04fSFariya Fatima "%s: Interface type %d not supported\n", __func__, 368dad0d04fSFariya Fatima vif->type); 36903c34c0dSPrameela Rani Garnepudi goto out; 370dad0d04fSFariya Fatima } 37103c34c0dSPrameela Rani Garnepudi 37203c34c0dSPrameela Rani Garnepudi adapter->vifs[adapter->sc_nvifs++] = vif; 37303c34c0dSPrameela Rani Garnepudi ret = rsi_set_vap_capabilities(common, intf_mode, common->mac_addr, 37403c34c0dSPrameela Rani Garnepudi 0, VAP_ADD); 37503c34c0dSPrameela Rani Garnepudi if (ret) { 37603c34c0dSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "Failed to set VAP capabilities\n"); 37703c34c0dSPrameela Rani Garnepudi goto out; 37803c34c0dSPrameela Rani Garnepudi } 37903c34c0dSPrameela Rani Garnepudi 38003c34c0dSPrameela Rani Garnepudi if (vif->type == NL80211_IFTYPE_AP) { 38103c34c0dSPrameela Rani Garnepudi int i; 38203c34c0dSPrameela Rani Garnepudi 38303c34c0dSPrameela Rani Garnepudi rsi_send_rx_filter_frame(common, DISALLOW_BEACONS); 38403c34c0dSPrameela Rani Garnepudi common->min_rate = RSI_RATE_AUTO; 38503c34c0dSPrameela Rani Garnepudi for (i = 0; i < common->max_stations; i++) 38603c34c0dSPrameela Rani Garnepudi common->stations[i].sta = NULL; 38703c34c0dSPrameela Rani Garnepudi } 38803c34c0dSPrameela Rani Garnepudi 38903c34c0dSPrameela Rani Garnepudi out: 390dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 391dad0d04fSFariya Fatima 392dad0d04fSFariya Fatima return ret; 393dad0d04fSFariya Fatima } 394dad0d04fSFariya Fatima 395dad0d04fSFariya Fatima /** 396dad0d04fSFariya Fatima * rsi_mac80211_remove_interface() - This function notifies driver that an 397dad0d04fSFariya Fatima * interface is going down. 398dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 399dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 400dad0d04fSFariya Fatima * 401dad0d04fSFariya Fatima * Return: None. 402dad0d04fSFariya Fatima */ 403dad0d04fSFariya Fatima static void rsi_mac80211_remove_interface(struct ieee80211_hw *hw, 404dad0d04fSFariya Fatima struct ieee80211_vif *vif) 405dad0d04fSFariya Fatima { 406dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 407dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 40875ca0049SPrameela Rani Garnepudi enum opmode opmode; 40975ca0049SPrameela Rani Garnepudi 41075ca0049SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Remove Interface Called\n"); 411dad0d04fSFariya Fatima 412dad0d04fSFariya Fatima mutex_lock(&common->mutex); 41375ca0049SPrameela Rani Garnepudi 41475ca0049SPrameela Rani Garnepudi if (adapter->sc_nvifs <= 0) { 41575ca0049SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 41675ca0049SPrameela Rani Garnepudi return; 41777364aaeSPrameela Rani Garnepudi } 418dad0d04fSFariya Fatima 41975ca0049SPrameela Rani Garnepudi switch (vif->type) { 42075ca0049SPrameela Rani Garnepudi case NL80211_IFTYPE_STATION: 42175ca0049SPrameela Rani Garnepudi opmode = STA_OPMODE; 42275ca0049SPrameela Rani Garnepudi break; 42375ca0049SPrameela Rani Garnepudi case NL80211_IFTYPE_AP: 42475ca0049SPrameela Rani Garnepudi opmode = AP_OPMODE; 42575ca0049SPrameela Rani Garnepudi break; 42675ca0049SPrameela Rani Garnepudi default: 42775ca0049SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 42875ca0049SPrameela Rani Garnepudi return; 42975ca0049SPrameela Rani Garnepudi } 43075ca0049SPrameela Rani Garnepudi rsi_set_vap_capabilities(common, opmode, vif->addr, 43175ca0049SPrameela Rani Garnepudi 0, VAP_DELETE); 43275ca0049SPrameela Rani Garnepudi adapter->sc_nvifs--; 43375ca0049SPrameela Rani Garnepudi 434dad0d04fSFariya Fatima if (!memcmp(adapter->vifs[0], vif, sizeof(struct ieee80211_vif))) 435dad0d04fSFariya Fatima adapter->vifs[0] = NULL; 436dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 437dad0d04fSFariya Fatima } 438dad0d04fSFariya Fatima 439dad0d04fSFariya Fatima /** 440686a2541SJahnavi Meher * rsi_channel_change() - This function is a performs the checks 441686a2541SJahnavi Meher * required for changing a channel and sets 442686a2541SJahnavi Meher * the channel accordingly. 443686a2541SJahnavi Meher * @hw: Pointer to the ieee80211_hw structure. 444686a2541SJahnavi Meher * 445686a2541SJahnavi Meher * Return: 0 on success, negative error code on failure. 446686a2541SJahnavi Meher */ 447686a2541SJahnavi Meher static int rsi_channel_change(struct ieee80211_hw *hw) 448686a2541SJahnavi Meher { 449686a2541SJahnavi Meher struct rsi_hw *adapter = hw->priv; 450686a2541SJahnavi Meher struct rsi_common *common = adapter->priv; 451686a2541SJahnavi Meher int status = -EOPNOTSUPP; 452686a2541SJahnavi Meher struct ieee80211_channel *curchan = hw->conf.chandef.chan; 453686a2541SJahnavi Meher u16 channel = curchan->hw_value; 454686a2541SJahnavi Meher struct ieee80211_bss_conf *bss = &adapter->vifs[0]->bss_conf; 455686a2541SJahnavi Meher 456686a2541SJahnavi Meher rsi_dbg(INFO_ZONE, 457686a2541SJahnavi Meher "%s: Set channel: %d MHz type: %d channel_no %d\n", 458686a2541SJahnavi Meher __func__, curchan->center_freq, 459686a2541SJahnavi Meher curchan->flags, channel); 460686a2541SJahnavi Meher 461686a2541SJahnavi Meher if (bss->assoc) { 462686a2541SJahnavi Meher if (!common->hw_data_qs_blocked && 463686a2541SJahnavi Meher (rsi_get_connected_channel(adapter) != channel)) { 464686a2541SJahnavi Meher rsi_dbg(INFO_ZONE, "blk data q %d\n", channel); 465686a2541SJahnavi Meher if (!rsi_send_block_unblock_frame(common, true)) 466686a2541SJahnavi Meher common->hw_data_qs_blocked = true; 467686a2541SJahnavi Meher } 468686a2541SJahnavi Meher } 469686a2541SJahnavi Meher 470686a2541SJahnavi Meher status = rsi_band_check(common); 471686a2541SJahnavi Meher if (!status) 47261d10842SPrameela Rani Garnepudi status = rsi_set_channel(adapter->priv, curchan); 473686a2541SJahnavi Meher 474686a2541SJahnavi Meher if (bss->assoc) { 475686a2541SJahnavi Meher if (common->hw_data_qs_blocked && 476686a2541SJahnavi Meher (rsi_get_connected_channel(adapter) == channel)) { 477686a2541SJahnavi Meher rsi_dbg(INFO_ZONE, "unblk data q %d\n", channel); 478686a2541SJahnavi Meher if (!rsi_send_block_unblock_frame(common, false)) 479686a2541SJahnavi Meher common->hw_data_qs_blocked = false; 480686a2541SJahnavi Meher } 481686a2541SJahnavi Meher } else { 482686a2541SJahnavi Meher if (common->hw_data_qs_blocked) { 483686a2541SJahnavi Meher rsi_dbg(INFO_ZONE, "unblk data q %d\n", channel); 484686a2541SJahnavi Meher if (!rsi_send_block_unblock_frame(common, false)) 485686a2541SJahnavi Meher common->hw_data_qs_blocked = false; 486686a2541SJahnavi Meher } 487686a2541SJahnavi Meher } 488686a2541SJahnavi Meher 489686a2541SJahnavi Meher return status; 490686a2541SJahnavi Meher } 491686a2541SJahnavi Meher 492686a2541SJahnavi Meher /** 4938b36de8cSPrameela Rani Garnepudi * rsi_config_power() - This function configures tx power to device 4948b36de8cSPrameela Rani Garnepudi * @hw: Pointer to the ieee80211_hw structure. 4958b36de8cSPrameela Rani Garnepudi * 4968b36de8cSPrameela Rani Garnepudi * Return: 0 on success, negative error code on failure. 4978b36de8cSPrameela Rani Garnepudi */ 4988b36de8cSPrameela Rani Garnepudi static int rsi_config_power(struct ieee80211_hw *hw) 4998b36de8cSPrameela Rani Garnepudi { 5008b36de8cSPrameela Rani Garnepudi struct rsi_hw *adapter = hw->priv; 5018b36de8cSPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 5028b36de8cSPrameela Rani Garnepudi struct ieee80211_conf *conf = &hw->conf; 5038b36de8cSPrameela Rani Garnepudi 5048b36de8cSPrameela Rani Garnepudi if (adapter->sc_nvifs <= 0) { 5058b36de8cSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "%s: No virtual interface found\n", __func__); 5068b36de8cSPrameela Rani Garnepudi return -EINVAL; 5078b36de8cSPrameela Rani Garnepudi } 5088b36de8cSPrameela Rani Garnepudi 5098b36de8cSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, 5108b36de8cSPrameela Rani Garnepudi "%s: Set tx power: %d dBM\n", __func__, conf->power_level); 5118b36de8cSPrameela Rani Garnepudi 5128b36de8cSPrameela Rani Garnepudi if (conf->power_level == common->tx_power) 5138b36de8cSPrameela Rani Garnepudi return 0; 5148b36de8cSPrameela Rani Garnepudi 5158b36de8cSPrameela Rani Garnepudi common->tx_power = conf->power_level; 5168b36de8cSPrameela Rani Garnepudi 5178b36de8cSPrameela Rani Garnepudi return rsi_send_radio_params_update(common); 5188b36de8cSPrameela Rani Garnepudi } 5198b36de8cSPrameela Rani Garnepudi 5208b36de8cSPrameela Rani Garnepudi /** 521dad0d04fSFariya Fatima * rsi_mac80211_config() - This function is a handler for configuration 522dad0d04fSFariya Fatima * requests. The stack calls this function to 523dad0d04fSFariya Fatima * change hardware configuration, e.g., channel. 524dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 525dad0d04fSFariya Fatima * @changed: Changed flags set. 526dad0d04fSFariya Fatima * 527dad0d04fSFariya Fatima * Return: 0 on success, negative error code on failure. 528dad0d04fSFariya Fatima */ 529dad0d04fSFariya Fatima static int rsi_mac80211_config(struct ieee80211_hw *hw, 530dad0d04fSFariya Fatima u32 changed) 531dad0d04fSFariya Fatima { 532dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 533dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 534ce86893fSKarun Eagalapati struct ieee80211_vif *vif = adapter->vifs[0]; 535ce86893fSKarun Eagalapati struct ieee80211_conf *conf = &hw->conf; 536dad0d04fSFariya Fatima int status = -EOPNOTSUPP; 537dad0d04fSFariya Fatima 538dad0d04fSFariya Fatima mutex_lock(&common->mutex); 539dad0d04fSFariya Fatima 540686a2541SJahnavi Meher if (changed & IEEE80211_CONF_CHANGE_CHANNEL) 541686a2541SJahnavi Meher status = rsi_channel_change(hw); 542686a2541SJahnavi Meher 5438b36de8cSPrameela Rani Garnepudi /* tx power */ 5448b36de8cSPrameela Rani Garnepudi if (changed & IEEE80211_CONF_CHANGE_POWER) { 5458b36de8cSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "%s: Configuring Power\n", __func__); 5468b36de8cSPrameela Rani Garnepudi status = rsi_config_power(hw); 5478b36de8cSPrameela Rani Garnepudi } 5488b36de8cSPrameela Rani Garnepudi 549ce86893fSKarun Eagalapati /* Power save parameters */ 550ce86893fSKarun Eagalapati if ((changed & IEEE80211_CONF_CHANGE_PS) && 551ce86893fSKarun Eagalapati (vif->type == NL80211_IFTYPE_STATION)) { 552ce86893fSKarun Eagalapati unsigned long flags; 553ce86893fSKarun Eagalapati 554ce86893fSKarun Eagalapati spin_lock_irqsave(&adapter->ps_lock, flags); 555ce86893fSKarun Eagalapati if (conf->flags & IEEE80211_CONF_PS) 556ce86893fSKarun Eagalapati rsi_enable_ps(adapter); 557ce86893fSKarun Eagalapati else 558ce86893fSKarun Eagalapati rsi_disable_ps(adapter); 559ce86893fSKarun Eagalapati spin_unlock_irqrestore(&adapter->ps_lock, flags); 560ce86893fSKarun Eagalapati } 561ce86893fSKarun Eagalapati 56280a88ecfSKarun Eagalapati /* RTS threshold */ 56380a88ecfSKarun Eagalapati if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 56480a88ecfSKarun Eagalapati rsi_dbg(INFO_ZONE, "RTS threshold\n"); 56580a88ecfSKarun Eagalapati if ((common->rts_threshold) <= IEEE80211_MAX_RTS_THRESHOLD) { 56680a88ecfSKarun Eagalapati rsi_dbg(INFO_ZONE, 56780a88ecfSKarun Eagalapati "%s: Sending vap updates....\n", __func__); 56880a88ecfSKarun Eagalapati status = rsi_send_vap_dynamic_update(common); 56980a88ecfSKarun Eagalapati } 57080a88ecfSKarun Eagalapati } 571dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 572dad0d04fSFariya Fatima 573dad0d04fSFariya Fatima return status; 574dad0d04fSFariya Fatima } 575dad0d04fSFariya Fatima 576dad0d04fSFariya Fatima /** 577dad0d04fSFariya Fatima * rsi_get_connected_channel() - This function is used to get the current 578dad0d04fSFariya Fatima * connected channel number. 579dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 580dad0d04fSFariya Fatima * 581dad0d04fSFariya Fatima * Return: Current connected AP's channel number is returned. 582dad0d04fSFariya Fatima */ 583dad0d04fSFariya Fatima u16 rsi_get_connected_channel(struct rsi_hw *adapter) 584dad0d04fSFariya Fatima { 585dad0d04fSFariya Fatima struct ieee80211_vif *vif = adapter->vifs[0]; 586dad0d04fSFariya Fatima if (vif) { 587dad0d04fSFariya Fatima struct ieee80211_bss_conf *bss = &vif->bss_conf; 588dad0d04fSFariya Fatima struct ieee80211_channel *channel = bss->chandef.chan; 589dad0d04fSFariya Fatima return channel->hw_value; 590dad0d04fSFariya Fatima } 591dad0d04fSFariya Fatima 592dad0d04fSFariya Fatima return 0; 593dad0d04fSFariya Fatima } 594dad0d04fSFariya Fatima 595dad0d04fSFariya Fatima /** 596dad0d04fSFariya Fatima * rsi_mac80211_bss_info_changed() - This function is a handler for config 597dad0d04fSFariya Fatima * requests related to BSS parameters that 598dad0d04fSFariya Fatima * may vary during BSS's lifespan. 599dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 600dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 601dad0d04fSFariya Fatima * @bss_conf: Pointer to the ieee80211_bss_conf structure. 602dad0d04fSFariya Fatima * @changed: Changed flags set. 603dad0d04fSFariya Fatima * 604dad0d04fSFariya Fatima * Return: None. 605dad0d04fSFariya Fatima */ 606dad0d04fSFariya Fatima static void rsi_mac80211_bss_info_changed(struct ieee80211_hw *hw, 607dad0d04fSFariya Fatima struct ieee80211_vif *vif, 608dad0d04fSFariya Fatima struct ieee80211_bss_conf *bss_conf, 609dad0d04fSFariya Fatima u32 changed) 610dad0d04fSFariya Fatima { 611dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 612dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 613ce86893fSKarun Eagalapati struct ieee80211_bss_conf *bss = &vif->bss_conf; 614ce86893fSKarun Eagalapati struct ieee80211_conf *conf = &hw->conf; 615e6d64284SPrameela Rani Garnepudi u16 rx_filter_word = 0; 616dad0d04fSFariya Fatima 617dad0d04fSFariya Fatima mutex_lock(&common->mutex); 618dad0d04fSFariya Fatima if (changed & BSS_CHANGED_ASSOC) { 619dad0d04fSFariya Fatima rsi_dbg(INFO_ZONE, "%s: Changed Association status: %d\n", 620dad0d04fSFariya Fatima __func__, bss_conf->assoc); 621e6d64284SPrameela Rani Garnepudi if (bss_conf->assoc) { 622e6d64284SPrameela Rani Garnepudi /* Send the RX filter frame */ 623e6d64284SPrameela Rani Garnepudi rx_filter_word = (ALLOW_DATA_ASSOC_PEER | 624e6d64284SPrameela Rani Garnepudi ALLOW_CTRL_ASSOC_PEER | 625e6d64284SPrameela Rani Garnepudi ALLOW_MGMT_ASSOC_PEER); 626e6d64284SPrameela Rani Garnepudi rsi_send_rx_filter_frame(common, rx_filter_word); 627e6d64284SPrameela Rani Garnepudi } 628dad0d04fSFariya Fatima rsi_inform_bss_status(common, 6293528608fSPrameela Rani Garnepudi STA_OPMODE, 630dad0d04fSFariya Fatima bss_conf->assoc, 631dad0d04fSFariya Fatima bss_conf->bssid, 632dad0d04fSFariya Fatima bss_conf->qos, 6333528608fSPrameela Rani Garnepudi bss_conf->aid, 6343528608fSPrameela Rani Garnepudi NULL, 0); 635ce86893fSKarun Eagalapati adapter->ps_info.dtim_interval_duration = bss->dtim_period; 636ce86893fSKarun Eagalapati adapter->ps_info.listen_interval = conf->listen_interval; 637db07971dSKarun Eagalapati 638db07971dSKarun Eagalapati /* If U-APSD is updated, send ps parameters to firmware */ 639db07971dSKarun Eagalapati if (bss->assoc) { 640db07971dSKarun Eagalapati if (common->uapsd_bitmap) { 641db07971dSKarun Eagalapati rsi_dbg(INFO_ZONE, "Configuring UAPSD\n"); 642db07971dSKarun Eagalapati rsi_conf_uapsd(adapter); 643db07971dSKarun Eagalapati } 644db07971dSKarun Eagalapati } else { 645db07971dSKarun Eagalapati common->uapsd_bitmap = 0; 646db07971dSKarun Eagalapati } 647dad0d04fSFariya Fatima } 648686a2541SJahnavi Meher 649686a2541SJahnavi Meher if (changed & BSS_CHANGED_CQM) { 650686a2541SJahnavi Meher common->cqm_info.last_cqm_event_rssi = 0; 651686a2541SJahnavi Meher common->cqm_info.rssi_thold = bss_conf->cqm_rssi_thold; 652686a2541SJahnavi Meher common->cqm_info.rssi_hyst = bss_conf->cqm_rssi_hyst; 653686a2541SJahnavi Meher rsi_dbg(INFO_ZONE, "RSSI throld & hysteresis are: %d %d\n", 654686a2541SJahnavi Meher common->cqm_info.rssi_thold, 655686a2541SJahnavi Meher common->cqm_info.rssi_hyst); 656686a2541SJahnavi Meher } 657d26a9559SPrameela Rani Garnepudi 658d26a9559SPrameela Rani Garnepudi if ((changed & BSS_CHANGED_BEACON_ENABLED) && 659d26a9559SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_AP)) { 660d26a9559SPrameela Rani Garnepudi if (bss->enable_beacon) { 661d26a9559SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "===> BEACON ENABLED <===\n"); 662d26a9559SPrameela Rani Garnepudi common->beacon_enabled = 1; 663d26a9559SPrameela Rani Garnepudi } else { 664d26a9559SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "===> BEACON DISABLED <===\n"); 665d26a9559SPrameela Rani Garnepudi common->beacon_enabled = 0; 666d26a9559SPrameela Rani Garnepudi } 667d26a9559SPrameela Rani Garnepudi } 668d26a9559SPrameela Rani Garnepudi 669dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 670dad0d04fSFariya Fatima } 671dad0d04fSFariya Fatima 672dad0d04fSFariya Fatima /** 673dad0d04fSFariya Fatima * rsi_mac80211_conf_filter() - This function configure the device's RX filter. 674dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 675dad0d04fSFariya Fatima * @changed: Changed flags set. 676dad0d04fSFariya Fatima * @total_flags: Total initial flags set. 677dad0d04fSFariya Fatima * @multicast: Multicast. 678dad0d04fSFariya Fatima * 679dad0d04fSFariya Fatima * Return: None. 680dad0d04fSFariya Fatima */ 681dad0d04fSFariya Fatima static void rsi_mac80211_conf_filter(struct ieee80211_hw *hw, 682dad0d04fSFariya Fatima u32 changed_flags, 683dad0d04fSFariya Fatima u32 *total_flags, 684dad0d04fSFariya Fatima u64 multicast) 685dad0d04fSFariya Fatima { 686dad0d04fSFariya Fatima /* Not doing much here as of now */ 687dad0d04fSFariya Fatima *total_flags &= RSI_SUPP_FILTERS; 688dad0d04fSFariya Fatima } 689dad0d04fSFariya Fatima 690dad0d04fSFariya Fatima /** 691dad0d04fSFariya Fatima * rsi_mac80211_conf_tx() - This function configures TX queue parameters 692dad0d04fSFariya Fatima * (EDCF (aifs, cw_min, cw_max), bursting) 693dad0d04fSFariya Fatima * for a hardware TX queue. 694dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure 695dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 696dad0d04fSFariya Fatima * @queue: Queue number. 697dad0d04fSFariya Fatima * @params: Pointer to ieee80211_tx_queue_params structure. 698dad0d04fSFariya Fatima * 699dad0d04fSFariya Fatima * Return: 0 on success, negative error code on failure. 700dad0d04fSFariya Fatima */ 701dad0d04fSFariya Fatima static int rsi_mac80211_conf_tx(struct ieee80211_hw *hw, 702dad0d04fSFariya Fatima struct ieee80211_vif *vif, u16 queue, 703dad0d04fSFariya Fatima const struct ieee80211_tx_queue_params *params) 704dad0d04fSFariya Fatima { 705dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 706dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 707dad0d04fSFariya Fatima u8 idx = 0; 708dad0d04fSFariya Fatima 709dad0d04fSFariya Fatima if (queue >= IEEE80211_NUM_ACS) 710dad0d04fSFariya Fatima return 0; 711dad0d04fSFariya Fatima 712dad0d04fSFariya Fatima rsi_dbg(INFO_ZONE, 713dad0d04fSFariya Fatima "%s: Conf queue %d, aifs: %d, cwmin: %d cwmax: %d, txop: %d\n", 714dad0d04fSFariya Fatima __func__, queue, params->aifs, 715dad0d04fSFariya Fatima params->cw_min, params->cw_max, params->txop); 716dad0d04fSFariya Fatima 717dad0d04fSFariya Fatima mutex_lock(&common->mutex); 718dad0d04fSFariya Fatima /* Map into the way the f/w expects */ 719dad0d04fSFariya Fatima switch (queue) { 720dad0d04fSFariya Fatima case IEEE80211_AC_VO: 721dad0d04fSFariya Fatima idx = VO_Q; 722dad0d04fSFariya Fatima break; 723dad0d04fSFariya Fatima case IEEE80211_AC_VI: 724dad0d04fSFariya Fatima idx = VI_Q; 725dad0d04fSFariya Fatima break; 726dad0d04fSFariya Fatima case IEEE80211_AC_BE: 727dad0d04fSFariya Fatima idx = BE_Q; 728dad0d04fSFariya Fatima break; 729dad0d04fSFariya Fatima case IEEE80211_AC_BK: 730dad0d04fSFariya Fatima idx = BK_Q; 731dad0d04fSFariya Fatima break; 732dad0d04fSFariya Fatima default: 733dad0d04fSFariya Fatima idx = BE_Q; 734dad0d04fSFariya Fatima break; 735dad0d04fSFariya Fatima } 736dad0d04fSFariya Fatima 737dad0d04fSFariya Fatima memcpy(&common->edca_params[idx], 738dad0d04fSFariya Fatima params, 739dad0d04fSFariya Fatima sizeof(struct ieee80211_tx_queue_params)); 740db07971dSKarun Eagalapati 741db07971dSKarun Eagalapati if (params->uapsd) 742db07971dSKarun Eagalapati common->uapsd_bitmap |= idx; 743db07971dSKarun Eagalapati else 744db07971dSKarun Eagalapati common->uapsd_bitmap &= (~idx); 745db07971dSKarun Eagalapati 746dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 747dad0d04fSFariya Fatima 748dad0d04fSFariya Fatima return 0; 749dad0d04fSFariya Fatima } 750dad0d04fSFariya Fatima 751dad0d04fSFariya Fatima /** 752dad0d04fSFariya Fatima * rsi_hal_key_config() - This function loads the keys into the firmware. 753dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 754dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 755dad0d04fSFariya Fatima * @key: Pointer to the ieee80211_key_conf structure. 756dad0d04fSFariya Fatima * 757fc438672SDan Carpenter * Return: status: 0 on success, negative error codes on failure. 758dad0d04fSFariya Fatima */ 759dad0d04fSFariya Fatima static int rsi_hal_key_config(struct ieee80211_hw *hw, 760dad0d04fSFariya Fatima struct ieee80211_vif *vif, 76138ef6235SPrameela Rani Garnepudi struct ieee80211_key_conf *key, 76238ef6235SPrameela Rani Garnepudi struct ieee80211_sta *sta) 763dad0d04fSFariya Fatima { 764dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 76538ef6235SPrameela Rani Garnepudi struct rsi_sta *rsta = NULL; 766dad0d04fSFariya Fatima int status; 767dad0d04fSFariya Fatima u8 key_type; 76838ef6235SPrameela Rani Garnepudi s16 sta_id = 0; 769dad0d04fSFariya Fatima 770dad0d04fSFariya Fatima if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 771dad0d04fSFariya Fatima key_type = RSI_PAIRWISE_KEY; 772dad0d04fSFariya Fatima else 773dad0d04fSFariya Fatima key_type = RSI_GROUP_KEY; 774dad0d04fSFariya Fatima 775dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: Cipher 0x%x key_type: %d key_len: %d\n", 776dad0d04fSFariya Fatima __func__, key->cipher, key_type, key->keylen); 777dad0d04fSFariya Fatima 77838ef6235SPrameela Rani Garnepudi if (vif->type == NL80211_IFTYPE_AP) { 77938ef6235SPrameela Rani Garnepudi if (sta) { 78038ef6235SPrameela Rani Garnepudi rsta = rsi_find_sta(adapter->priv, sta->addr); 78138ef6235SPrameela Rani Garnepudi if (rsta) 78238ef6235SPrameela Rani Garnepudi sta_id = rsta->sta_id; 78338ef6235SPrameela Rani Garnepudi } 78438ef6235SPrameela Rani Garnepudi adapter->priv->key = key; 78538ef6235SPrameela Rani Garnepudi } else { 786dad0d04fSFariya Fatima if ((key->cipher == WLAN_CIPHER_SUITE_WEP104) || 787dad0d04fSFariya Fatima (key->cipher == WLAN_CIPHER_SUITE_WEP40)) { 788dad0d04fSFariya Fatima status = rsi_hal_load_key(adapter->priv, 789dad0d04fSFariya Fatima key->key, 790dad0d04fSFariya Fatima key->keylen, 791dad0d04fSFariya Fatima RSI_PAIRWISE_KEY, 792dad0d04fSFariya Fatima key->keyidx, 79338ef6235SPrameela Rani Garnepudi key->cipher, 79438ef6235SPrameela Rani Garnepudi sta_id); 795dad0d04fSFariya Fatima if (status) 796dad0d04fSFariya Fatima return status; 797dad0d04fSFariya Fatima } 79838ef6235SPrameela Rani Garnepudi } 79938ef6235SPrameela Rani Garnepudi 800dad0d04fSFariya Fatima return rsi_hal_load_key(adapter->priv, 801dad0d04fSFariya Fatima key->key, 802dad0d04fSFariya Fatima key->keylen, 803dad0d04fSFariya Fatima key_type, 804dad0d04fSFariya Fatima key->keyidx, 80538ef6235SPrameela Rani Garnepudi key->cipher, 80638ef6235SPrameela Rani Garnepudi sta_id); 807dad0d04fSFariya Fatima } 808dad0d04fSFariya Fatima 809dad0d04fSFariya Fatima /** 810dad0d04fSFariya Fatima * rsi_mac80211_set_key() - This function sets type of key to be loaded. 811dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 812dad0d04fSFariya Fatima * @cmd: enum set_key_cmd. 813dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 814dad0d04fSFariya Fatima * @sta: Pointer to the ieee80211_sta structure. 815dad0d04fSFariya Fatima * @key: Pointer to the ieee80211_key_conf structure. 816dad0d04fSFariya Fatima * 817dad0d04fSFariya Fatima * Return: status: 0 on success, negative error code on failure. 818dad0d04fSFariya Fatima */ 819dad0d04fSFariya Fatima static int rsi_mac80211_set_key(struct ieee80211_hw *hw, 820dad0d04fSFariya Fatima enum set_key_cmd cmd, 821dad0d04fSFariya Fatima struct ieee80211_vif *vif, 822dad0d04fSFariya Fatima struct ieee80211_sta *sta, 823dad0d04fSFariya Fatima struct ieee80211_key_conf *key) 824dad0d04fSFariya Fatima { 825dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 826dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 827dad0d04fSFariya Fatima struct security_info *secinfo = &common->secinfo; 828dad0d04fSFariya Fatima int status; 829dad0d04fSFariya Fatima 830dad0d04fSFariya Fatima mutex_lock(&common->mutex); 831dad0d04fSFariya Fatima switch (cmd) { 832dad0d04fSFariya Fatima case SET_KEY: 833dad0d04fSFariya Fatima secinfo->security_enable = true; 83438ef6235SPrameela Rani Garnepudi status = rsi_hal_key_config(hw, vif, key, sta); 835dad0d04fSFariya Fatima if (status) { 836dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 837dad0d04fSFariya Fatima return status; 838dad0d04fSFariya Fatima } 839dad0d04fSFariya Fatima 840dad0d04fSFariya Fatima if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 841dad0d04fSFariya Fatima secinfo->ptk_cipher = key->cipher; 842dad0d04fSFariya Fatima else 843dad0d04fSFariya Fatima secinfo->gtk_cipher = key->cipher; 844dad0d04fSFariya Fatima 845dad0d04fSFariya Fatima key->hw_key_idx = key->keyidx; 846dad0d04fSFariya Fatima key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; 847dad0d04fSFariya Fatima 848dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: RSI set_key\n", __func__); 849dad0d04fSFariya Fatima break; 850dad0d04fSFariya Fatima 851dad0d04fSFariya Fatima case DISABLE_KEY: 85238ef6235SPrameela Rani Garnepudi if (vif->type == NL80211_IFTYPE_STATION) 853dad0d04fSFariya Fatima secinfo->security_enable = false; 854dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: RSI del key\n", __func__); 855dad0d04fSFariya Fatima memset(key, 0, sizeof(struct ieee80211_key_conf)); 85638ef6235SPrameela Rani Garnepudi status = rsi_hal_key_config(hw, vif, key, sta); 857dad0d04fSFariya Fatima break; 858dad0d04fSFariya Fatima 859dad0d04fSFariya Fatima default: 860dad0d04fSFariya Fatima status = -EOPNOTSUPP; 861dad0d04fSFariya Fatima break; 862dad0d04fSFariya Fatima } 863dad0d04fSFariya Fatima 864dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 865dad0d04fSFariya Fatima return status; 866dad0d04fSFariya Fatima } 867dad0d04fSFariya Fatima 868dad0d04fSFariya Fatima /** 869dad0d04fSFariya Fatima * rsi_mac80211_ampdu_action() - This function selects the AMPDU action for 870dad0d04fSFariya Fatima * the corresponding mlme_action flag and 871dad0d04fSFariya Fatima * informs the f/w regarding this. 872dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 873dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 87450ea05efSSara Sharon * @params: Pointer to A-MPDU action parameters 875dad0d04fSFariya Fatima * 876dad0d04fSFariya Fatima * Return: status: 0 on success, negative error code on failure. 877dad0d04fSFariya Fatima */ 878dad0d04fSFariya Fatima static int rsi_mac80211_ampdu_action(struct ieee80211_hw *hw, 879dad0d04fSFariya Fatima struct ieee80211_vif *vif, 88050ea05efSSara Sharon struct ieee80211_ampdu_params *params) 881dad0d04fSFariya Fatima { 882dad0d04fSFariya Fatima int status = -EOPNOTSUPP; 883dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 884dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 88532be57a6SPrameela Rani Garnepudi struct rsi_sta *rsta = NULL; 88632be57a6SPrameela Rani Garnepudi u16 seq_no = 0, seq_start = 0; 887dad0d04fSFariya Fatima u8 ii = 0; 88850ea05efSSara Sharon struct ieee80211_sta *sta = params->sta; 88932be57a6SPrameela Rani Garnepudi u8 sta_id = 0; 89050ea05efSSara Sharon enum ieee80211_ampdu_mlme_action action = params->action; 89150ea05efSSara Sharon u16 tid = params->tid; 89250ea05efSSara Sharon u16 *ssn = ¶ms->ssn; 89350ea05efSSara Sharon u8 buf_size = params->buf_size; 894dad0d04fSFariya Fatima 895dad0d04fSFariya Fatima for (ii = 0; ii < RSI_MAX_VIFS; ii++) { 896dad0d04fSFariya Fatima if (vif == adapter->vifs[ii]) 897dad0d04fSFariya Fatima break; 898dad0d04fSFariya Fatima } 899dad0d04fSFariya Fatima 900dad0d04fSFariya Fatima mutex_lock(&common->mutex); 90132be57a6SPrameela Rani Garnepudi 902dad0d04fSFariya Fatima if (ssn != NULL) 903dad0d04fSFariya Fatima seq_no = *ssn; 904dad0d04fSFariya Fatima 90532be57a6SPrameela Rani Garnepudi if (vif->type == NL80211_IFTYPE_AP) { 90632be57a6SPrameela Rani Garnepudi rsta = rsi_find_sta(common, sta->addr); 90732be57a6SPrameela Rani Garnepudi if (!rsta) { 90832be57a6SPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "No station mapped\n"); 90932be57a6SPrameela Rani Garnepudi return 0; 91032be57a6SPrameela Rani Garnepudi } 91132be57a6SPrameela Rani Garnepudi sta_id = rsta->sta_id; 91232be57a6SPrameela Rani Garnepudi } 91332be57a6SPrameela Rani Garnepudi 91432be57a6SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, 91532be57a6SPrameela Rani Garnepudi "%s: AMPDU action tid=%d ssn=0x%x, buf_size=%d sta_id=%d\n", 91632be57a6SPrameela Rani Garnepudi __func__, tid, seq_no, buf_size, sta_id); 91732be57a6SPrameela Rani Garnepudi 918dad0d04fSFariya Fatima switch (action) { 919dad0d04fSFariya Fatima case IEEE80211_AMPDU_RX_START: 920dad0d04fSFariya Fatima status = rsi_send_aggregation_params_frame(common, 921dad0d04fSFariya Fatima tid, 922dad0d04fSFariya Fatima seq_no, 923dad0d04fSFariya Fatima buf_size, 92432be57a6SPrameela Rani Garnepudi STA_RX_ADDBA_DONE, 92532be57a6SPrameela Rani Garnepudi sta_id); 926dad0d04fSFariya Fatima break; 927dad0d04fSFariya Fatima 928dad0d04fSFariya Fatima case IEEE80211_AMPDU_RX_STOP: 929dad0d04fSFariya Fatima status = rsi_send_aggregation_params_frame(common, 930dad0d04fSFariya Fatima tid, 931dad0d04fSFariya Fatima 0, 932dad0d04fSFariya Fatima buf_size, 93332be57a6SPrameela Rani Garnepudi STA_RX_DELBA, 93432be57a6SPrameela Rani Garnepudi sta_id); 935dad0d04fSFariya Fatima break; 936dad0d04fSFariya Fatima 937dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_START: 93832be57a6SPrameela Rani Garnepudi if (vif->type == NL80211_IFTYPE_STATION) 939dad0d04fSFariya Fatima common->vif_info[ii].seq_start = seq_no; 94032be57a6SPrameela Rani Garnepudi else if (vif->type == NL80211_IFTYPE_AP) 94132be57a6SPrameela Rani Garnepudi rsta->seq_start[tid] = seq_no; 942dad0d04fSFariya Fatima ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); 9435f407acbSJahnavi Meher status = 0; 944dad0d04fSFariya Fatima break; 945dad0d04fSFariya Fatima 946dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_STOP_CONT: 947dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_STOP_FLUSH: 948dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 949dad0d04fSFariya Fatima status = rsi_send_aggregation_params_frame(common, 950dad0d04fSFariya Fatima tid, 951dad0d04fSFariya Fatima seq_no, 952dad0d04fSFariya Fatima buf_size, 95332be57a6SPrameela Rani Garnepudi STA_TX_DELBA, 95432be57a6SPrameela Rani Garnepudi sta_id); 955dad0d04fSFariya Fatima if (!status) 956dad0d04fSFariya Fatima ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 957dad0d04fSFariya Fatima break; 958dad0d04fSFariya Fatima 959dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_OPERATIONAL: 96032be57a6SPrameela Rani Garnepudi if (vif->type == NL80211_IFTYPE_STATION) 96132be57a6SPrameela Rani Garnepudi seq_start = common->vif_info[ii].seq_start; 96232be57a6SPrameela Rani Garnepudi else if (vif->type == NL80211_IFTYPE_AP) 96332be57a6SPrameela Rani Garnepudi seq_start = rsta->seq_start[tid]; 964dad0d04fSFariya Fatima status = rsi_send_aggregation_params_frame(common, 965dad0d04fSFariya Fatima tid, 96632be57a6SPrameela Rani Garnepudi seq_start, 967dad0d04fSFariya Fatima buf_size, 96832be57a6SPrameela Rani Garnepudi STA_TX_ADDBA_DONE, 96932be57a6SPrameela Rani Garnepudi sta_id); 970dad0d04fSFariya Fatima break; 971dad0d04fSFariya Fatima 972dad0d04fSFariya Fatima default: 973dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: Uknown AMPDU action\n", __func__); 974dad0d04fSFariya Fatima break; 975dad0d04fSFariya Fatima } 976dad0d04fSFariya Fatima 977dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 978dad0d04fSFariya Fatima return status; 979dad0d04fSFariya Fatima } 980dad0d04fSFariya Fatima 981dad0d04fSFariya Fatima /** 982dad0d04fSFariya Fatima * rsi_mac80211_set_rts_threshold() - This function sets rts threshold value. 983dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 984dad0d04fSFariya Fatima * @value: Rts threshold value. 985dad0d04fSFariya Fatima * 986dad0d04fSFariya Fatima * Return: 0 on success. 987dad0d04fSFariya Fatima */ 988dad0d04fSFariya Fatima static int rsi_mac80211_set_rts_threshold(struct ieee80211_hw *hw, 989dad0d04fSFariya Fatima u32 value) 990dad0d04fSFariya Fatima { 991dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 992dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 993dad0d04fSFariya Fatima 994dad0d04fSFariya Fatima mutex_lock(&common->mutex); 995dad0d04fSFariya Fatima common->rts_threshold = value; 996dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 997dad0d04fSFariya Fatima 998dad0d04fSFariya Fatima return 0; 999dad0d04fSFariya Fatima } 1000dad0d04fSFariya Fatima 1001dad0d04fSFariya Fatima /** 1002dad0d04fSFariya Fatima * rsi_mac80211_set_rate_mask() - This function sets bitrate_mask to be used. 1003dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure 1004dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 1005dad0d04fSFariya Fatima * @mask: Pointer to the cfg80211_bitrate_mask structure. 1006dad0d04fSFariya Fatima * 1007dad0d04fSFariya Fatima * Return: 0 on success. 1008dad0d04fSFariya Fatima */ 1009dad0d04fSFariya Fatima static int rsi_mac80211_set_rate_mask(struct ieee80211_hw *hw, 1010dad0d04fSFariya Fatima struct ieee80211_vif *vif, 1011dad0d04fSFariya Fatima const struct cfg80211_bitrate_mask *mask) 1012dad0d04fSFariya Fatima { 1013dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 1014dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 101557fbcce3SJohannes Berg enum nl80211_band band = hw->conf.chandef.chan->band; 1016dad0d04fSFariya Fatima 1017dad0d04fSFariya Fatima mutex_lock(&common->mutex); 101885af5bf8SJahnavi Meher common->fixedrate_mask[band] = 0; 1019dad0d04fSFariya Fatima 102085af5bf8SJahnavi Meher if (mask->control[band].legacy == 0xfff) { 102185af5bf8SJahnavi Meher common->fixedrate_mask[band] = 102285af5bf8SJahnavi Meher (mask->control[band].ht_mcs[0] << 12); 1023dad0d04fSFariya Fatima } else { 102485af5bf8SJahnavi Meher common->fixedrate_mask[band] = 102585af5bf8SJahnavi Meher mask->control[band].legacy; 1026dad0d04fSFariya Fatima } 1027dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 1028dad0d04fSFariya Fatima 1029dad0d04fSFariya Fatima return 0; 1030dad0d04fSFariya Fatima } 1031dad0d04fSFariya Fatima 1032dad0d04fSFariya Fatima /** 1033686a2541SJahnavi Meher * rsi_perform_cqm() - This function performs cqm. 1034686a2541SJahnavi Meher * @common: Pointer to the driver private structure. 1035686a2541SJahnavi Meher * @bssid: pointer to the bssid. 1036686a2541SJahnavi Meher * @rssi: RSSI value. 1037686a2541SJahnavi Meher */ 1038686a2541SJahnavi Meher static void rsi_perform_cqm(struct rsi_common *common, 1039686a2541SJahnavi Meher u8 *bssid, 1040686a2541SJahnavi Meher s8 rssi) 1041686a2541SJahnavi Meher { 1042686a2541SJahnavi Meher struct rsi_hw *adapter = common->priv; 1043686a2541SJahnavi Meher s8 last_event = common->cqm_info.last_cqm_event_rssi; 1044686a2541SJahnavi Meher int thold = common->cqm_info.rssi_thold; 1045686a2541SJahnavi Meher u32 hyst = common->cqm_info.rssi_hyst; 1046686a2541SJahnavi Meher enum nl80211_cqm_rssi_threshold_event event; 1047686a2541SJahnavi Meher 1048686a2541SJahnavi Meher if (rssi < thold && (last_event == 0 || rssi < (last_event - hyst))) 1049686a2541SJahnavi Meher event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW; 1050686a2541SJahnavi Meher else if (rssi > thold && 1051686a2541SJahnavi Meher (last_event == 0 || rssi > (last_event + hyst))) 1052686a2541SJahnavi Meher event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH; 1053686a2541SJahnavi Meher else 1054686a2541SJahnavi Meher return; 1055686a2541SJahnavi Meher 1056686a2541SJahnavi Meher common->cqm_info.last_cqm_event_rssi = rssi; 1057686a2541SJahnavi Meher rsi_dbg(INFO_ZONE, "CQM: Notifying event: %d\n", event); 1058769f07d8SAndrzej Zaborowski ieee80211_cqm_rssi_notify(adapter->vifs[0], event, rssi, GFP_KERNEL); 1059686a2541SJahnavi Meher 1060686a2541SJahnavi Meher return; 1061686a2541SJahnavi Meher } 1062686a2541SJahnavi Meher 1063686a2541SJahnavi Meher /** 1064dad0d04fSFariya Fatima * rsi_fill_rx_status() - This function fills rx status in 1065dad0d04fSFariya Fatima * ieee80211_rx_status structure. 1066dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 1067dad0d04fSFariya Fatima * @skb: Pointer to the socket buffer structure. 1068dad0d04fSFariya Fatima * @common: Pointer to the driver private structure. 1069dad0d04fSFariya Fatima * @rxs: Pointer to the ieee80211_rx_status structure. 1070dad0d04fSFariya Fatima * 1071dad0d04fSFariya Fatima * Return: None. 1072dad0d04fSFariya Fatima */ 1073dad0d04fSFariya Fatima static void rsi_fill_rx_status(struct ieee80211_hw *hw, 1074dad0d04fSFariya Fatima struct sk_buff *skb, 1075dad0d04fSFariya Fatima struct rsi_common *common, 1076dad0d04fSFariya Fatima struct ieee80211_rx_status *rxs) 1077dad0d04fSFariya Fatima { 1078686a2541SJahnavi Meher struct ieee80211_bss_conf *bss = &common->priv->vifs[0]->bss_conf; 1079dad0d04fSFariya Fatima struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 1080dad0d04fSFariya Fatima struct skb_info *rx_params = (struct skb_info *)info->driver_data; 1081dad0d04fSFariya Fatima struct ieee80211_hdr *hdr; 1082dad0d04fSFariya Fatima char rssi = rx_params->rssi; 1083dad0d04fSFariya Fatima u8 hdrlen = 0; 1084dad0d04fSFariya Fatima u8 channel = rx_params->channel; 1085dad0d04fSFariya Fatima s32 freq; 1086dad0d04fSFariya Fatima 1087dad0d04fSFariya Fatima hdr = ((struct ieee80211_hdr *)(skb->data)); 1088dad0d04fSFariya Fatima hdrlen = ieee80211_hdrlen(hdr->frame_control); 1089dad0d04fSFariya Fatima 1090dad0d04fSFariya Fatima memset(info, 0, sizeof(struct ieee80211_tx_info)); 1091dad0d04fSFariya Fatima 1092dad0d04fSFariya Fatima rxs->signal = -(rssi); 1093dad0d04fSFariya Fatima 1094aabd3ad4SJahnavi Meher rxs->band = common->band; 1095dad0d04fSFariya Fatima 1096dad0d04fSFariya Fatima freq = ieee80211_channel_to_frequency(channel, rxs->band); 1097dad0d04fSFariya Fatima 1098dad0d04fSFariya Fatima if (freq) 1099dad0d04fSFariya Fatima rxs->freq = freq; 1100dad0d04fSFariya Fatima 1101dad0d04fSFariya Fatima if (ieee80211_has_protected(hdr->frame_control)) { 1102dad0d04fSFariya Fatima if (rsi_is_cipher_wep(common)) { 1103dad0d04fSFariya Fatima memmove(skb->data + 4, skb->data, hdrlen); 1104dad0d04fSFariya Fatima skb_pull(skb, 4); 1105dad0d04fSFariya Fatima } else { 1106dad0d04fSFariya Fatima memmove(skb->data + 8, skb->data, hdrlen); 1107dad0d04fSFariya Fatima skb_pull(skb, 8); 1108dad0d04fSFariya Fatima rxs->flag |= RX_FLAG_MMIC_STRIPPED; 1109dad0d04fSFariya Fatima } 1110dad0d04fSFariya Fatima rxs->flag |= RX_FLAG_DECRYPTED; 1111dad0d04fSFariya Fatima rxs->flag |= RX_FLAG_IV_STRIPPED; 1112dad0d04fSFariya Fatima } 1113686a2541SJahnavi Meher 1114686a2541SJahnavi Meher /* CQM only for connected AP beacons, the RSSI is a weighted avg */ 1115686a2541SJahnavi Meher if (bss->assoc && !(memcmp(bss->bssid, hdr->addr2, ETH_ALEN))) { 1116686a2541SJahnavi Meher if (ieee80211_is_beacon(hdr->frame_control)) 1117686a2541SJahnavi Meher rsi_perform_cqm(common, hdr->addr2, rxs->signal); 1118686a2541SJahnavi Meher } 1119686a2541SJahnavi Meher 1120686a2541SJahnavi Meher return; 1121dad0d04fSFariya Fatima } 1122dad0d04fSFariya Fatima 1123dad0d04fSFariya Fatima /** 1124dad0d04fSFariya Fatima * rsi_indicate_pkt_to_os() - This function sends recieved packet to mac80211. 1125dad0d04fSFariya Fatima * @common: Pointer to the driver private structure. 1126dad0d04fSFariya Fatima * @skb: Pointer to the socket buffer structure. 1127dad0d04fSFariya Fatima * 1128dad0d04fSFariya Fatima * Return: None. 1129dad0d04fSFariya Fatima */ 1130dad0d04fSFariya Fatima void rsi_indicate_pkt_to_os(struct rsi_common *common, 1131dad0d04fSFariya Fatima struct sk_buff *skb) 1132dad0d04fSFariya Fatima { 1133dad0d04fSFariya Fatima struct rsi_hw *adapter = common->priv; 1134dad0d04fSFariya Fatima struct ieee80211_hw *hw = adapter->hw; 1135dad0d04fSFariya Fatima struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb); 1136dad0d04fSFariya Fatima 1137dad0d04fSFariya Fatima if ((common->iface_down) || (!adapter->sc_nvifs)) { 1138dad0d04fSFariya Fatima dev_kfree_skb(skb); 1139dad0d04fSFariya Fatima return; 1140dad0d04fSFariya Fatima } 1141dad0d04fSFariya Fatima 1142dad0d04fSFariya Fatima /* filling in the ieee80211_rx_status flags */ 1143dad0d04fSFariya Fatima rsi_fill_rx_status(hw, skb, common, rx_status); 1144dad0d04fSFariya Fatima 1145dad0d04fSFariya Fatima ieee80211_rx_irqsafe(hw, skb); 1146dad0d04fSFariya Fatima } 1147dad0d04fSFariya Fatima 1148dad0d04fSFariya Fatima static void rsi_set_min_rate(struct ieee80211_hw *hw, 1149dad0d04fSFariya Fatima struct ieee80211_sta *sta, 1150dad0d04fSFariya Fatima struct rsi_common *common) 1151dad0d04fSFariya Fatima { 1152dad0d04fSFariya Fatima u8 band = hw->conf.chandef.chan->band; 1153dad0d04fSFariya Fatima u8 ii; 1154dad0d04fSFariya Fatima u32 rate_bitmap; 1155dad0d04fSFariya Fatima bool matched = false; 1156dad0d04fSFariya Fatima 1157dad0d04fSFariya Fatima common->bitrate_mask[band] = sta->supp_rates[band]; 1158dad0d04fSFariya Fatima 1159dad0d04fSFariya Fatima rate_bitmap = (common->fixedrate_mask[band] & sta->supp_rates[band]); 1160dad0d04fSFariya Fatima 1161dad0d04fSFariya Fatima if (rate_bitmap & 0xfff) { 1162dad0d04fSFariya Fatima /* Find out the min rate */ 1163dad0d04fSFariya Fatima for (ii = 0; ii < ARRAY_SIZE(rsi_rates); ii++) { 1164dad0d04fSFariya Fatima if (rate_bitmap & BIT(ii)) { 1165dad0d04fSFariya Fatima common->min_rate = rsi_rates[ii].hw_value; 1166dad0d04fSFariya Fatima matched = true; 1167dad0d04fSFariya Fatima break; 1168dad0d04fSFariya Fatima } 1169dad0d04fSFariya Fatima } 1170dad0d04fSFariya Fatima } 1171dad0d04fSFariya Fatima 1172dad0d04fSFariya Fatima common->vif_info[0].is_ht = sta->ht_cap.ht_supported; 1173dad0d04fSFariya Fatima 1174dad0d04fSFariya Fatima if ((common->vif_info[0].is_ht) && (rate_bitmap >> 12)) { 1175dad0d04fSFariya Fatima for (ii = 0; ii < ARRAY_SIZE(rsi_mcsrates); ii++) { 1176dad0d04fSFariya Fatima if ((rate_bitmap >> 12) & BIT(ii)) { 1177dad0d04fSFariya Fatima common->min_rate = rsi_mcsrates[ii]; 1178dad0d04fSFariya Fatima matched = true; 1179dad0d04fSFariya Fatima break; 1180dad0d04fSFariya Fatima } 1181dad0d04fSFariya Fatima } 1182dad0d04fSFariya Fatima } 1183dad0d04fSFariya Fatima 1184dad0d04fSFariya Fatima if (!matched) 1185dad0d04fSFariya Fatima common->min_rate = 0xffff; 1186dad0d04fSFariya Fatima } 1187dad0d04fSFariya Fatima 1188dad0d04fSFariya Fatima /** 1189dad0d04fSFariya Fatima * rsi_mac80211_sta_add() - This function notifies driver about a peer getting 1190dad0d04fSFariya Fatima * connected. 1191dad0d04fSFariya Fatima * @hw: pointer to the ieee80211_hw structure. 1192dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 1193dad0d04fSFariya Fatima * @sta: Pointer to the ieee80211_sta structure. 1194dad0d04fSFariya Fatima * 1195fc438672SDan Carpenter * Return: 0 on success, negative error codes on failure. 1196dad0d04fSFariya Fatima */ 1197dad0d04fSFariya Fatima static int rsi_mac80211_sta_add(struct ieee80211_hw *hw, 1198dad0d04fSFariya Fatima struct ieee80211_vif *vif, 1199dad0d04fSFariya Fatima struct ieee80211_sta *sta) 1200dad0d04fSFariya Fatima { 1201dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 1202dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 12033528608fSPrameela Rani Garnepudi bool sta_exist = false; 12043528608fSPrameela Rani Garnepudi struct rsi_sta *rsta; 12053528608fSPrameela Rani Garnepudi 12063528608fSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Station Add: %pM\n", sta->addr); 1207dad0d04fSFariya Fatima 1208dad0d04fSFariya Fatima mutex_lock(&common->mutex); 1209dad0d04fSFariya Fatima 12103528608fSPrameela Rani Garnepudi if (vif->type == NL80211_IFTYPE_AP) { 12113528608fSPrameela Rani Garnepudi u8 cnt; 12123528608fSPrameela Rani Garnepudi int sta_idx = -1; 12133528608fSPrameela Rani Garnepudi int free_index = -1; 1214dad0d04fSFariya Fatima 12153528608fSPrameela Rani Garnepudi /* Check if max stations reached */ 12163528608fSPrameela Rani Garnepudi if (common->num_stations >= common->max_stations) { 12173528608fSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "Reject: Max Stations exists\n"); 12183528608fSPrameela Rani Garnepudi mutex_unlock(&common->mutex); 12193528608fSPrameela Rani Garnepudi return -EOPNOTSUPP; 12203528608fSPrameela Rani Garnepudi } 12213528608fSPrameela Rani Garnepudi for (cnt = 0; cnt < common->max_stations; cnt++) { 12223528608fSPrameela Rani Garnepudi rsta = &common->stations[cnt]; 12233528608fSPrameela Rani Garnepudi 12243528608fSPrameela Rani Garnepudi if (!rsta->sta) { 12253528608fSPrameela Rani Garnepudi if (free_index < 0) 12263528608fSPrameela Rani Garnepudi free_index = cnt; 12273528608fSPrameela Rani Garnepudi continue; 12283528608fSPrameela Rani Garnepudi } 12293528608fSPrameela Rani Garnepudi if (!memcmp(rsta->sta->addr, sta->addr, ETH_ALEN)) { 12303528608fSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Station exists\n"); 12313528608fSPrameela Rani Garnepudi sta_idx = cnt; 12323528608fSPrameela Rani Garnepudi sta_exist = true; 12333528608fSPrameela Rani Garnepudi break; 12343528608fSPrameela Rani Garnepudi } 12353528608fSPrameela Rani Garnepudi } 12363528608fSPrameela Rani Garnepudi if (!sta_exist) { 12373528608fSPrameela Rani Garnepudi if (free_index >= 0) 12383528608fSPrameela Rani Garnepudi sta_idx = free_index; 12393528608fSPrameela Rani Garnepudi } 12403528608fSPrameela Rani Garnepudi if (sta_idx < 0) { 12413528608fSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, 12423528608fSPrameela Rani Garnepudi "%s: Some problem reaching here...\n", 12433528608fSPrameela Rani Garnepudi __func__); 12443528608fSPrameela Rani Garnepudi return -EINVAL; 12453528608fSPrameela Rani Garnepudi } 12463528608fSPrameela Rani Garnepudi rsta = &common->stations[sta_idx]; 12473528608fSPrameela Rani Garnepudi rsta->sta = sta; 12483528608fSPrameela Rani Garnepudi rsta->sta_id = sta_idx; 12493528608fSPrameela Rani Garnepudi for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++) 12503528608fSPrameela Rani Garnepudi rsta->start_tx_aggr[cnt] = false; 12513528608fSPrameela Rani Garnepudi for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++) 12523528608fSPrameela Rani Garnepudi rsta->seq_start[cnt] = 0; 12533528608fSPrameela Rani Garnepudi if (!sta_exist) { 12543528608fSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "New Station\n"); 12553528608fSPrameela Rani Garnepudi 12563528608fSPrameela Rani Garnepudi /* Send peer notify to device */ 12573528608fSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Indicate bss status to device\n"); 12583528608fSPrameela Rani Garnepudi rsi_inform_bss_status(common, AP_OPMODE, 1, sta->addr, 12593528608fSPrameela Rani Garnepudi sta->wme, sta->aid, sta, sta_idx); 12603528608fSPrameela Rani Garnepudi 126138ef6235SPrameela Rani Garnepudi if (common->key) { 126238ef6235SPrameela Rani Garnepudi struct ieee80211_key_conf *key = common->key; 126338ef6235SPrameela Rani Garnepudi 126438ef6235SPrameela Rani Garnepudi if ((key->cipher == WLAN_CIPHER_SUITE_WEP104) || 126538ef6235SPrameela Rani Garnepudi (key->cipher == WLAN_CIPHER_SUITE_WEP40)) 126638ef6235SPrameela Rani Garnepudi rsi_hal_load_key(adapter->priv, 126738ef6235SPrameela Rani Garnepudi key->key, 126838ef6235SPrameela Rani Garnepudi key->keylen, 126938ef6235SPrameela Rani Garnepudi RSI_PAIRWISE_KEY, 127038ef6235SPrameela Rani Garnepudi key->keyidx, 127138ef6235SPrameela Rani Garnepudi key->cipher, 127238ef6235SPrameela Rani Garnepudi sta_idx); 127338ef6235SPrameela Rani Garnepudi } 127438ef6235SPrameela Rani Garnepudi 12753528608fSPrameela Rani Garnepudi common->num_stations++; 12763528608fSPrameela Rani Garnepudi } 1277dad0d04fSFariya Fatima } 1278dad0d04fSFariya Fatima 12793528608fSPrameela Rani Garnepudi if (vif->type == NL80211_IFTYPE_STATION) { 12803528608fSPrameela Rani Garnepudi rsi_set_min_rate(hw, sta, common); 12813528608fSPrameela Rani Garnepudi if (sta->ht_cap.ht_supported) { 12823528608fSPrameela Rani Garnepudi common->vif_info[0].is_ht = true; 12833528608fSPrameela Rani Garnepudi common->bitrate_mask[NL80211_BAND_2GHZ] = 12843528608fSPrameela Rani Garnepudi sta->supp_rates[NL80211_BAND_2GHZ]; 12853528608fSPrameela Rani Garnepudi if ((sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20) || 12863528608fSPrameela Rani Garnepudi (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40)) 12873528608fSPrameela Rani Garnepudi common->vif_info[0].sgi = true; 1288dad0d04fSFariya Fatima ieee80211_start_tx_ba_session(sta, 0, 0); 12893528608fSPrameela Rani Garnepudi } 12903528608fSPrameela Rani Garnepudi } 1291dad0d04fSFariya Fatima 1292dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 1293dad0d04fSFariya Fatima 1294dad0d04fSFariya Fatima return 0; 1295dad0d04fSFariya Fatima } 1296dad0d04fSFariya Fatima 1297dad0d04fSFariya Fatima /** 1298dad0d04fSFariya Fatima * rsi_mac80211_sta_remove() - This function notifies driver about a peer 1299dad0d04fSFariya Fatima * getting disconnected. 1300dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 1301dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 1302dad0d04fSFariya Fatima * @sta: Pointer to the ieee80211_sta structure. 1303dad0d04fSFariya Fatima * 1304fc438672SDan Carpenter * Return: 0 on success, negative error codes on failure. 1305dad0d04fSFariya Fatima */ 1306dad0d04fSFariya Fatima static int rsi_mac80211_sta_remove(struct ieee80211_hw *hw, 1307dad0d04fSFariya Fatima struct ieee80211_vif *vif, 1308dad0d04fSFariya Fatima struct ieee80211_sta *sta) 1309dad0d04fSFariya Fatima { 1310dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 1311dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 1312571b050bSPrameela Rani Garnepudi struct ieee80211_bss_conf *bss = &vif->bss_conf; 1313571b050bSPrameela Rani Garnepudi struct rsi_sta *rsta; 1314571b050bSPrameela Rani Garnepudi 1315571b050bSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Station Remove: %pM\n", sta->addr); 1316dad0d04fSFariya Fatima 1317dad0d04fSFariya Fatima mutex_lock(&common->mutex); 1318e6d64284SPrameela Rani Garnepudi 1319571b050bSPrameela Rani Garnepudi if (vif->type == NL80211_IFTYPE_AP) { 1320571b050bSPrameela Rani Garnepudi u8 sta_idx, cnt; 1321571b050bSPrameela Rani Garnepudi 1322571b050bSPrameela Rani Garnepudi /* Send peer notify to device */ 1323571b050bSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Indicate bss status to device\n"); 1324571b050bSPrameela Rani Garnepudi for (sta_idx = 0; sta_idx < common->max_stations; sta_idx++) { 1325571b050bSPrameela Rani Garnepudi rsta = &common->stations[sta_idx]; 1326571b050bSPrameela Rani Garnepudi 1327571b050bSPrameela Rani Garnepudi if (!rsta->sta) 1328571b050bSPrameela Rani Garnepudi continue; 1329571b050bSPrameela Rani Garnepudi if (!memcmp(rsta->sta->addr, sta->addr, ETH_ALEN)) { 1330571b050bSPrameela Rani Garnepudi rsi_inform_bss_status(common, AP_OPMODE, 0, 1331571b050bSPrameela Rani Garnepudi sta->addr, sta->wme, 1332571b050bSPrameela Rani Garnepudi sta->aid, sta, sta_idx); 1333571b050bSPrameela Rani Garnepudi rsta->sta = NULL; 1334571b050bSPrameela Rani Garnepudi rsta->sta_id = -1; 1335571b050bSPrameela Rani Garnepudi for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++) 1336571b050bSPrameela Rani Garnepudi rsta->start_tx_aggr[cnt] = false; 1337571b050bSPrameela Rani Garnepudi if (common->num_stations > 0) 1338571b050bSPrameela Rani Garnepudi common->num_stations--; 1339571b050bSPrameela Rani Garnepudi break; 1340571b050bSPrameela Rani Garnepudi } 1341571b050bSPrameela Rani Garnepudi } 1342571b050bSPrameela Rani Garnepudi if (sta_idx >= common->max_stations) 1343571b050bSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "%s: No station found\n", __func__); 1344571b050bSPrameela Rani Garnepudi } 1345571b050bSPrameela Rani Garnepudi 1346571b050bSPrameela Rani Garnepudi if (vif->type == NL80211_IFTYPE_STATION) { 1347dad0d04fSFariya Fatima /* Resetting all the fields to default values */ 1348571b050bSPrameela Rani Garnepudi memcpy((u8 *)bss->bssid, (u8 *)sta->addr, ETH_ALEN); 1349571b050bSPrameela Rani Garnepudi bss->qos = sta->wme; 135057fbcce3SJohannes Berg common->bitrate_mask[NL80211_BAND_2GHZ] = 0; 135157fbcce3SJohannes Berg common->bitrate_mask[NL80211_BAND_5GHZ] = 0; 1352dad0d04fSFariya Fatima common->min_rate = 0xffff; 1353dad0d04fSFariya Fatima common->vif_info[0].is_ht = false; 1354dad0d04fSFariya Fatima common->vif_info[0].sgi = false; 1355dad0d04fSFariya Fatima common->vif_info[0].seq_start = 0; 1356dad0d04fSFariya Fatima common->secinfo.ptk_cipher = 0; 1357dad0d04fSFariya Fatima common->secinfo.gtk_cipher = 0; 1358571b050bSPrameela Rani Garnepudi if (!common->iface_down) 1359e6d64284SPrameela Rani Garnepudi rsi_send_rx_filter_frame(common, 0); 1360571b050bSPrameela Rani Garnepudi } 1361dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 1362dad0d04fSFariya Fatima 1363dad0d04fSFariya Fatima return 0; 1364dad0d04fSFariya Fatima } 1365dad0d04fSFariya Fatima 13664edbcd1aSPrameela Rani Garnepudi /** 13674edbcd1aSPrameela Rani Garnepudi * rsi_mac80211_set_antenna() - This function is used to configure 13684edbcd1aSPrameela Rani Garnepudi * tx and rx antennas. 13694edbcd1aSPrameela Rani Garnepudi * @hw: Pointer to the ieee80211_hw structure. 13704edbcd1aSPrameela Rani Garnepudi * @tx_ant: Bitmap for tx antenna 13714edbcd1aSPrameela Rani Garnepudi * @rx_ant: Bitmap for rx antenna 13724edbcd1aSPrameela Rani Garnepudi * 13734edbcd1aSPrameela Rani Garnepudi * Return: 0 on success, Negative error code on failure. 13744edbcd1aSPrameela Rani Garnepudi */ 13754edbcd1aSPrameela Rani Garnepudi static int rsi_mac80211_set_antenna(struct ieee80211_hw *hw, 13764edbcd1aSPrameela Rani Garnepudi u32 tx_ant, u32 rx_ant) 13774edbcd1aSPrameela Rani Garnepudi { 13784edbcd1aSPrameela Rani Garnepudi struct rsi_hw *adapter = hw->priv; 13794edbcd1aSPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 13804edbcd1aSPrameela Rani Garnepudi u8 antenna = 0; 13814edbcd1aSPrameela Rani Garnepudi 13824edbcd1aSPrameela Rani Garnepudi if (tx_ant > 1 || rx_ant > 1) { 13834edbcd1aSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, 13844edbcd1aSPrameela Rani Garnepudi "Invalid antenna selection (tx: %d, rx:%d)\n", 13854edbcd1aSPrameela Rani Garnepudi tx_ant, rx_ant); 13864edbcd1aSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, 13874edbcd1aSPrameela Rani Garnepudi "Use 0 for int_ant, 1 for ext_ant\n"); 13884edbcd1aSPrameela Rani Garnepudi return -EINVAL; 13894edbcd1aSPrameela Rani Garnepudi } 13904edbcd1aSPrameela Rani Garnepudi 13914edbcd1aSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "%s: Antenna map Tx %x Rx %d\n", 13924edbcd1aSPrameela Rani Garnepudi __func__, tx_ant, rx_ant); 13934edbcd1aSPrameela Rani Garnepudi 13944edbcd1aSPrameela Rani Garnepudi mutex_lock(&common->mutex); 13954edbcd1aSPrameela Rani Garnepudi 13964edbcd1aSPrameela Rani Garnepudi antenna = tx_ant ? ANTENNA_SEL_UFL : ANTENNA_SEL_INT; 13974edbcd1aSPrameela Rani Garnepudi if (common->ant_in_use != antenna) 13984edbcd1aSPrameela Rani Garnepudi if (rsi_set_antenna(common, antenna)) 13994edbcd1aSPrameela Rani Garnepudi goto fail_set_antenna; 14004edbcd1aSPrameela Rani Garnepudi 14014edbcd1aSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "(%s) Antenna path configured successfully\n", 14024edbcd1aSPrameela Rani Garnepudi tx_ant ? "UFL" : "INT"); 14034edbcd1aSPrameela Rani Garnepudi 14044edbcd1aSPrameela Rani Garnepudi common->ant_in_use = antenna; 14054edbcd1aSPrameela Rani Garnepudi 14064edbcd1aSPrameela Rani Garnepudi mutex_unlock(&common->mutex); 14074edbcd1aSPrameela Rani Garnepudi 14084edbcd1aSPrameela Rani Garnepudi return 0; 14094edbcd1aSPrameela Rani Garnepudi 14104edbcd1aSPrameela Rani Garnepudi fail_set_antenna: 14114edbcd1aSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "%s: Failed.\n", __func__); 14124edbcd1aSPrameela Rani Garnepudi mutex_unlock(&common->mutex); 14134edbcd1aSPrameela Rani Garnepudi return -EINVAL; 14144edbcd1aSPrameela Rani Garnepudi } 14154edbcd1aSPrameela Rani Garnepudi 14164edbcd1aSPrameela Rani Garnepudi /** 14174edbcd1aSPrameela Rani Garnepudi * rsi_mac80211_get_antenna() - This function is used to configure 14184edbcd1aSPrameela Rani Garnepudi * tx and rx antennas. 14194edbcd1aSPrameela Rani Garnepudi * 14204edbcd1aSPrameela Rani Garnepudi * @hw: Pointer to the ieee80211_hw structure. 14214edbcd1aSPrameela Rani Garnepudi * @tx_ant: Bitmap for tx antenna 14224edbcd1aSPrameela Rani Garnepudi * @rx_ant: Bitmap for rx antenna 14234edbcd1aSPrameela Rani Garnepudi * 1424fc438672SDan Carpenter * Return: 0 on success, negative error codes on failure. 14254edbcd1aSPrameela Rani Garnepudi */ 14264edbcd1aSPrameela Rani Garnepudi static int rsi_mac80211_get_antenna(struct ieee80211_hw *hw, 14274edbcd1aSPrameela Rani Garnepudi u32 *tx_ant, u32 *rx_ant) 14284edbcd1aSPrameela Rani Garnepudi { 14294edbcd1aSPrameela Rani Garnepudi struct rsi_hw *adapter = hw->priv; 14304edbcd1aSPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 14314edbcd1aSPrameela Rani Garnepudi 14324edbcd1aSPrameela Rani Garnepudi mutex_lock(&common->mutex); 14334edbcd1aSPrameela Rani Garnepudi 14344edbcd1aSPrameela Rani Garnepudi *tx_ant = (common->ant_in_use == ANTENNA_SEL_UFL) ? 1 : 0; 14354edbcd1aSPrameela Rani Garnepudi *rx_ant = 0; 14364edbcd1aSPrameela Rani Garnepudi 14374edbcd1aSPrameela Rani Garnepudi mutex_unlock(&common->mutex); 14384edbcd1aSPrameela Rani Garnepudi 14394edbcd1aSPrameela Rani Garnepudi return 0; 14404edbcd1aSPrameela Rani Garnepudi } 14414edbcd1aSPrameela Rani Garnepudi 1442d7203a83SPrameela Rani Garnepudi static int rsi_map_region_code(enum nl80211_dfs_regions region_code) 1443d7203a83SPrameela Rani Garnepudi { 1444d7203a83SPrameela Rani Garnepudi switch (region_code) { 1445d7203a83SPrameela Rani Garnepudi case NL80211_DFS_FCC: 1446d7203a83SPrameela Rani Garnepudi return RSI_REGION_FCC; 1447d7203a83SPrameela Rani Garnepudi case NL80211_DFS_ETSI: 1448d7203a83SPrameela Rani Garnepudi return RSI_REGION_ETSI; 1449d7203a83SPrameela Rani Garnepudi case NL80211_DFS_JP: 1450d7203a83SPrameela Rani Garnepudi return RSI_REGION_TELEC; 1451d7203a83SPrameela Rani Garnepudi case NL80211_DFS_UNSET: 1452d7203a83SPrameela Rani Garnepudi return RSI_REGION_WORLD; 1453d7203a83SPrameela Rani Garnepudi } 1454d7203a83SPrameela Rani Garnepudi return RSI_REGION_WORLD; 1455d7203a83SPrameela Rani Garnepudi } 1456d7203a83SPrameela Rani Garnepudi 145761d10842SPrameela Rani Garnepudi static void rsi_reg_notify(struct wiphy *wiphy, 145861d10842SPrameela Rani Garnepudi struct regulatory_request *request) 145961d10842SPrameela Rani Garnepudi { 146061d10842SPrameela Rani Garnepudi struct ieee80211_supported_band *sband; 146161d10842SPrameela Rani Garnepudi struct ieee80211_channel *ch; 146261d10842SPrameela Rani Garnepudi struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 146361d10842SPrameela Rani Garnepudi struct rsi_hw * adapter = hw->priv; 1464d7203a83SPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 146561d10842SPrameela Rani Garnepudi int i; 146661d10842SPrameela Rani Garnepudi 1467d7203a83SPrameela Rani Garnepudi mutex_lock(&common->mutex); 1468d7203a83SPrameela Rani Garnepudi 1469d7203a83SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "country = %s dfs_region = %d\n", 1470d7203a83SPrameela Rani Garnepudi request->alpha2, request->dfs_region); 1471d7203a83SPrameela Rani Garnepudi 1472d7203a83SPrameela Rani Garnepudi if (common->num_supp_bands > 1) { 147361d10842SPrameela Rani Garnepudi sband = wiphy->bands[NL80211_BAND_5GHZ]; 147461d10842SPrameela Rani Garnepudi 147561d10842SPrameela Rani Garnepudi for (i = 0; i < sband->n_channels; i++) { 147661d10842SPrameela Rani Garnepudi ch = &sband->channels[i]; 147761d10842SPrameela Rani Garnepudi if (ch->flags & IEEE80211_CHAN_DISABLED) 147861d10842SPrameela Rani Garnepudi continue; 147961d10842SPrameela Rani Garnepudi 148061d10842SPrameela Rani Garnepudi if (ch->flags & IEEE80211_CHAN_RADAR) 148161d10842SPrameela Rani Garnepudi ch->flags |= IEEE80211_CHAN_NO_IR; 148261d10842SPrameela Rani Garnepudi } 1483d7203a83SPrameela Rani Garnepudi } 1484d7203a83SPrameela Rani Garnepudi adapter->dfs_region = rsi_map_region_code(request->dfs_region); 1485d7203a83SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "RSI region code = %d\n", adapter->dfs_region); 148661d10842SPrameela Rani Garnepudi 1487d7203a83SPrameela Rani Garnepudi adapter->country[0] = request->alpha2[0]; 1488d7203a83SPrameela Rani Garnepudi adapter->country[1] = request->alpha2[1]; 1489d7203a83SPrameela Rani Garnepudi 1490d7203a83SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 149161d10842SPrameela Rani Garnepudi } 149261d10842SPrameela Rani Garnepudi 1493edba3532SPavani Muthyala static void rsi_mac80211_rfkill_poll(struct ieee80211_hw *hw) 1494edba3532SPavani Muthyala { 1495edba3532SPavani Muthyala struct rsi_hw *adapter = hw->priv; 1496edba3532SPavani Muthyala struct rsi_common *common = adapter->priv; 1497edba3532SPavani Muthyala 1498edba3532SPavani Muthyala mutex_lock(&common->mutex); 1499edba3532SPavani Muthyala if (common->fsm_state != FSM_MAC_INIT_DONE) 1500edba3532SPavani Muthyala wiphy_rfkill_set_hw_state(hw->wiphy, true); 1501edba3532SPavani Muthyala else 1502edba3532SPavani Muthyala wiphy_rfkill_set_hw_state(hw->wiphy, false); 1503edba3532SPavani Muthyala mutex_unlock(&common->mutex); 1504edba3532SPavani Muthyala } 1505edba3532SPavani Muthyala 15069ea792a4SArvind Yadav static const struct ieee80211_ops mac80211_ops = { 1507dad0d04fSFariya Fatima .tx = rsi_mac80211_tx, 1508dad0d04fSFariya Fatima .start = rsi_mac80211_start, 1509dad0d04fSFariya Fatima .stop = rsi_mac80211_stop, 1510dad0d04fSFariya Fatima .add_interface = rsi_mac80211_add_interface, 1511dad0d04fSFariya Fatima .remove_interface = rsi_mac80211_remove_interface, 1512dad0d04fSFariya Fatima .config = rsi_mac80211_config, 1513dad0d04fSFariya Fatima .bss_info_changed = rsi_mac80211_bss_info_changed, 1514dad0d04fSFariya Fatima .conf_tx = rsi_mac80211_conf_tx, 1515dad0d04fSFariya Fatima .configure_filter = rsi_mac80211_conf_filter, 1516dad0d04fSFariya Fatima .set_key = rsi_mac80211_set_key, 1517dad0d04fSFariya Fatima .set_rts_threshold = rsi_mac80211_set_rts_threshold, 1518dad0d04fSFariya Fatima .set_bitrate_mask = rsi_mac80211_set_rate_mask, 1519dad0d04fSFariya Fatima .ampdu_action = rsi_mac80211_ampdu_action, 1520dad0d04fSFariya Fatima .sta_add = rsi_mac80211_sta_add, 1521dad0d04fSFariya Fatima .sta_remove = rsi_mac80211_sta_remove, 15224edbcd1aSPrameela Rani Garnepudi .set_antenna = rsi_mac80211_set_antenna, 15234edbcd1aSPrameela Rani Garnepudi .get_antenna = rsi_mac80211_get_antenna, 1524edba3532SPavani Muthyala .rfkill_poll = rsi_mac80211_rfkill_poll, 1525dad0d04fSFariya Fatima }; 1526dad0d04fSFariya Fatima 1527dad0d04fSFariya Fatima /** 1528dad0d04fSFariya Fatima * rsi_mac80211_attach() - This function is used to initialize Mac80211 stack. 1529dad0d04fSFariya Fatima * @common: Pointer to the driver private structure. 1530dad0d04fSFariya Fatima * 1531fc438672SDan Carpenter * Return: 0 on success, negative error codes on failure. 1532dad0d04fSFariya Fatima */ 1533dad0d04fSFariya Fatima int rsi_mac80211_attach(struct rsi_common *common) 1534dad0d04fSFariya Fatima { 1535dad0d04fSFariya Fatima int status = 0; 1536dad0d04fSFariya Fatima struct ieee80211_hw *hw = NULL; 1537dad0d04fSFariya Fatima struct wiphy *wiphy = NULL; 1538dad0d04fSFariya Fatima struct rsi_hw *adapter = common->priv; 1539dad0d04fSFariya Fatima u8 addr_mask[ETH_ALEN] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x3}; 1540dad0d04fSFariya Fatima 1541dad0d04fSFariya Fatima rsi_dbg(INIT_ZONE, "%s: Performing mac80211 attach\n", __func__); 1542dad0d04fSFariya Fatima 1543dad0d04fSFariya Fatima hw = ieee80211_alloc_hw(sizeof(struct rsi_hw), &mac80211_ops); 1544dad0d04fSFariya Fatima if (!hw) { 1545dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: ieee80211 hw alloc failed\n", __func__); 1546dad0d04fSFariya Fatima return -ENOMEM; 1547dad0d04fSFariya Fatima } 1548dad0d04fSFariya Fatima 1549dad0d04fSFariya Fatima wiphy = hw->wiphy; 1550dad0d04fSFariya Fatima 1551dad0d04fSFariya Fatima SET_IEEE80211_DEV(hw, adapter->device); 1552dad0d04fSFariya Fatima 1553dad0d04fSFariya Fatima hw->priv = adapter; 1554dad0d04fSFariya Fatima adapter->hw = hw; 1555dad0d04fSFariya Fatima 155630686bf7SJohannes Berg ieee80211_hw_set(hw, SIGNAL_DBM); 155730686bf7SJohannes Berg ieee80211_hw_set(hw, HAS_RATE_CONTROL); 155830686bf7SJohannes Berg ieee80211_hw_set(hw, AMPDU_AGGREGATION); 1559ce86893fSKarun Eagalapati ieee80211_hw_set(hw, SUPPORTS_PS); 1560ce86893fSKarun Eagalapati ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 1561dad0d04fSFariya Fatima 1562dad0d04fSFariya Fatima hw->queues = MAX_HW_QUEUES; 1563dad0d04fSFariya Fatima hw->extra_tx_headroom = RSI_NEEDED_HEADROOM; 1564dad0d04fSFariya Fatima 1565dad0d04fSFariya Fatima hw->max_rates = 1; 1566dad0d04fSFariya Fatima hw->max_rate_tries = MAX_RETRIES; 1567db07971dSKarun Eagalapati hw->uapsd_queues = RSI_IEEE80211_UAPSD_QUEUES; 1568db07971dSKarun Eagalapati hw->uapsd_max_sp_len = IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL; 1569dad0d04fSFariya Fatima 1570dad0d04fSFariya Fatima hw->max_tx_aggregation_subframes = 6; 157157fbcce3SJohannes Berg rsi_register_rates_channels(adapter, NL80211_BAND_2GHZ); 157257fbcce3SJohannes Berg rsi_register_rates_channels(adapter, NL80211_BAND_5GHZ); 1573dad0d04fSFariya Fatima hw->rate_control_algorithm = "AARF"; 1574dad0d04fSFariya Fatima 1575dad0d04fSFariya Fatima SET_IEEE80211_PERM_ADDR(hw, common->mac_addr); 1576dad0d04fSFariya Fatima ether_addr_copy(hw->wiphy->addr_mask, addr_mask); 1577dad0d04fSFariya Fatima 15786da1e00aSPrameela Rani Garnepudi wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 15796da1e00aSPrameela Rani Garnepudi BIT(NL80211_IFTYPE_AP); 1580dad0d04fSFariya Fatima wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 1581dad0d04fSFariya Fatima wiphy->retry_short = RETRY_SHORT; 1582dad0d04fSFariya Fatima wiphy->retry_long = RETRY_LONG; 1583dad0d04fSFariya Fatima wiphy->frag_threshold = IEEE80211_MAX_FRAG_THRESHOLD; 1584dad0d04fSFariya Fatima wiphy->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 1585dad0d04fSFariya Fatima wiphy->flags = 0; 1586dad0d04fSFariya Fatima 1587dad0d04fSFariya Fatima wiphy->available_antennas_rx = 1; 1588dad0d04fSFariya Fatima wiphy->available_antennas_tx = 1; 158957fbcce3SJohannes Berg wiphy->bands[NL80211_BAND_2GHZ] = 159057fbcce3SJohannes Berg &adapter->sbands[NL80211_BAND_2GHZ]; 159157fbcce3SJohannes Berg wiphy->bands[NL80211_BAND_5GHZ] = 159257fbcce3SJohannes Berg &adapter->sbands[NL80211_BAND_5GHZ]; 1593dad0d04fSFariya Fatima 15946da1e00aSPrameela Rani Garnepudi /* AP Parameters */ 15956da1e00aSPrameela Rani Garnepudi wiphy->max_ap_assoc_sta = rsi_max_ap_stas[common->oper_mode - 1]; 15966da1e00aSPrameela Rani Garnepudi common->max_stations = wiphy->max_ap_assoc_sta; 15976da1e00aSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "Max Stations Allowed = %d\n", common->max_stations); 15986da1e00aSPrameela Rani Garnepudi hw->sta_data_size = sizeof(struct rsi_sta); 15996da1e00aSPrameela Rani Garnepudi wiphy->flags = WIPHY_FLAG_REPORTS_OBSS; 16006da1e00aSPrameela Rani Garnepudi wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 16016da1e00aSPrameela Rani Garnepudi wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 160261d10842SPrameela Rani Garnepudi wiphy->reg_notifier = rsi_reg_notify; 160361d10842SPrameela Rani Garnepudi 1604ae44b502SAndrew Zaborowski wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST); 1605ae44b502SAndrew Zaborowski 1606dad0d04fSFariya Fatima status = ieee80211_register_hw(hw); 1607dad0d04fSFariya Fatima if (status) 1608dad0d04fSFariya Fatima return status; 1609dad0d04fSFariya Fatima 1610dad0d04fSFariya Fatima return rsi_init_dbgfs(adapter); 1611dad0d04fSFariya Fatima } 1612