15dfcdc7aSLee Jones /* 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" 20b6c8d06cSKarun Eagalapati #include "rsi_sdio.h" 21dad0d04fSFariya Fatima #include "rsi_common.h" 22ce86893fSKarun Eagalapati #include "rsi_ps.h" 23dad0d04fSFariya Fatima 24dad0d04fSFariya Fatima static const struct ieee80211_channel rsi_2ghz_channels[] = { 2557fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2412, 26dad0d04fSFariya Fatima .hw_value = 1 }, /* Channel 1 */ 2757fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2417, 28dad0d04fSFariya Fatima .hw_value = 2 }, /* Channel 2 */ 2957fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2422, 30dad0d04fSFariya Fatima .hw_value = 3 }, /* Channel 3 */ 3157fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2427, 32dad0d04fSFariya Fatima .hw_value = 4 }, /* Channel 4 */ 3357fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2432, 34dad0d04fSFariya Fatima .hw_value = 5 }, /* Channel 5 */ 3557fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2437, 36dad0d04fSFariya Fatima .hw_value = 6 }, /* Channel 6 */ 3757fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2442, 38dad0d04fSFariya Fatima .hw_value = 7 }, /* Channel 7 */ 3957fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2447, 40dad0d04fSFariya Fatima .hw_value = 8 }, /* Channel 8 */ 4157fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2452, 42dad0d04fSFariya Fatima .hw_value = 9 }, /* Channel 9 */ 4357fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2457, 44dad0d04fSFariya Fatima .hw_value = 10 }, /* Channel 10 */ 4557fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2462, 46dad0d04fSFariya Fatima .hw_value = 11 }, /* Channel 11 */ 4757fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2467, 48dad0d04fSFariya Fatima .hw_value = 12 }, /* Channel 12 */ 4957fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2472, 50dad0d04fSFariya Fatima .hw_value = 13 }, /* Channel 13 */ 5157fbcce3SJohannes Berg { .band = NL80211_BAND_2GHZ, .center_freq = 2484, 52dad0d04fSFariya Fatima .hw_value = 14 }, /* Channel 14 */ 53dad0d04fSFariya Fatima }; 54dad0d04fSFariya Fatima 55dad0d04fSFariya Fatima static const struct ieee80211_channel rsi_5ghz_channels[] = { 5657fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5180, 57dad0d04fSFariya Fatima .hw_value = 36, }, /* Channel 36 */ 5857fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5200, 59dad0d04fSFariya Fatima .hw_value = 40, }, /* Channel 40 */ 6057fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5220, 61dad0d04fSFariya Fatima .hw_value = 44, }, /* Channel 44 */ 6257fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5240, 63dad0d04fSFariya Fatima .hw_value = 48, }, /* Channel 48 */ 6457fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5260, 65dad0d04fSFariya Fatima .hw_value = 52, }, /* Channel 52 */ 6657fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5280, 67dad0d04fSFariya Fatima .hw_value = 56, }, /* Channel 56 */ 6857fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5300, 69dad0d04fSFariya Fatima .hw_value = 60, }, /* Channel 60 */ 7057fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5320, 71dad0d04fSFariya Fatima .hw_value = 64, }, /* Channel 64 */ 7257fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5500, 73dad0d04fSFariya Fatima .hw_value = 100, }, /* Channel 100 */ 7457fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5520, 75dad0d04fSFariya Fatima .hw_value = 104, }, /* Channel 104 */ 7657fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5540, 77dad0d04fSFariya Fatima .hw_value = 108, }, /* Channel 108 */ 7857fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5560, 79dad0d04fSFariya Fatima .hw_value = 112, }, /* Channel 112 */ 8057fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5580, 81dad0d04fSFariya Fatima .hw_value = 116, }, /* Channel 116 */ 8257fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5600, 83dad0d04fSFariya Fatima .hw_value = 120, }, /* Channel 120 */ 8457fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5620, 85dad0d04fSFariya Fatima .hw_value = 124, }, /* Channel 124 */ 8657fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5640, 87dad0d04fSFariya Fatima .hw_value = 128, }, /* Channel 128 */ 8857fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5660, 89dad0d04fSFariya Fatima .hw_value = 132, }, /* Channel 132 */ 9057fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5680, 91dad0d04fSFariya Fatima .hw_value = 136, }, /* Channel 136 */ 9257fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5700, 93dad0d04fSFariya Fatima .hw_value = 140, }, /* Channel 140 */ 9457fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5745, 95dad0d04fSFariya Fatima .hw_value = 149, }, /* Channel 149 */ 9657fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5765, 97dad0d04fSFariya Fatima .hw_value = 153, }, /* Channel 153 */ 9857fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5785, 99dad0d04fSFariya Fatima .hw_value = 157, }, /* Channel 157 */ 10057fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5805, 101dad0d04fSFariya Fatima .hw_value = 161, }, /* Channel 161 */ 10257fbcce3SJohannes Berg { .band = NL80211_BAND_5GHZ, .center_freq = 5825, 103dad0d04fSFariya Fatima .hw_value = 165, }, /* Channel 165 */ 104dad0d04fSFariya Fatima }; 105dad0d04fSFariya Fatima 106dad0d04fSFariya Fatima struct ieee80211_rate rsi_rates[12] = { 107dad0d04fSFariya Fatima { .bitrate = STD_RATE_01 * 5, .hw_value = RSI_RATE_1 }, 108dad0d04fSFariya Fatima { .bitrate = STD_RATE_02 * 5, .hw_value = RSI_RATE_2 }, 109dad0d04fSFariya Fatima { .bitrate = STD_RATE_5_5 * 5, .hw_value = RSI_RATE_5_5 }, 110dad0d04fSFariya Fatima { .bitrate = STD_RATE_11 * 5, .hw_value = RSI_RATE_11 }, 111dad0d04fSFariya Fatima { .bitrate = STD_RATE_06 * 5, .hw_value = RSI_RATE_6 }, 112dad0d04fSFariya Fatima { .bitrate = STD_RATE_09 * 5, .hw_value = RSI_RATE_9 }, 113dad0d04fSFariya Fatima { .bitrate = STD_RATE_12 * 5, .hw_value = RSI_RATE_12 }, 114dad0d04fSFariya Fatima { .bitrate = STD_RATE_18 * 5, .hw_value = RSI_RATE_18 }, 115dad0d04fSFariya Fatima { .bitrate = STD_RATE_24 * 5, .hw_value = RSI_RATE_24 }, 116dad0d04fSFariya Fatima { .bitrate = STD_RATE_36 * 5, .hw_value = RSI_RATE_36 }, 117dad0d04fSFariya Fatima { .bitrate = STD_RATE_48 * 5, .hw_value = RSI_RATE_48 }, 118dad0d04fSFariya Fatima { .bitrate = STD_RATE_54 * 5, .hw_value = RSI_RATE_54 }, 119dad0d04fSFariya Fatima }; 120dad0d04fSFariya Fatima 121dad0d04fSFariya Fatima const u16 rsi_mcsrates[8] = { 122dad0d04fSFariya Fatima RSI_RATE_MCS0, RSI_RATE_MCS1, RSI_RATE_MCS2, RSI_RATE_MCS3, 123dad0d04fSFariya Fatima RSI_RATE_MCS4, RSI_RATE_MCS5, RSI_RATE_MCS6, RSI_RATE_MCS7 124dad0d04fSFariya Fatima }; 125dad0d04fSFariya Fatima 1266da1e00aSPrameela Rani Garnepudi static const u32 rsi_max_ap_stas[16] = { 1276da1e00aSPrameela Rani Garnepudi 32, /* 1 - Wi-Fi alone */ 1286da1e00aSPrameela Rani Garnepudi 0, /* 2 */ 1296da1e00aSPrameela Rani Garnepudi 0, /* 3 */ 1306da1e00aSPrameela Rani Garnepudi 0, /* 4 - BT EDR alone */ 1316da1e00aSPrameela Rani Garnepudi 4, /* 5 - STA + BT EDR */ 1326da1e00aSPrameela Rani Garnepudi 32, /* 6 - AP + BT EDR */ 1336da1e00aSPrameela Rani Garnepudi 0, /* 7 */ 1346da1e00aSPrameela Rani Garnepudi 0, /* 8 - BT LE alone */ 1356da1e00aSPrameela Rani Garnepudi 4, /* 9 - STA + BE LE */ 1366da1e00aSPrameela Rani Garnepudi 0, /* 10 */ 1376da1e00aSPrameela Rani Garnepudi 0, /* 11 */ 1386da1e00aSPrameela Rani Garnepudi 0, /* 12 */ 1396da1e00aSPrameela Rani Garnepudi 1, /* 13 - STA + BT Dual */ 1406da1e00aSPrameela Rani Garnepudi 4, /* 14 - AP + BT Dual */ 1416da1e00aSPrameela Rani Garnepudi }; 1426da1e00aSPrameela Rani Garnepudi 143421eedffSPrameela Rani Garnepudi static const struct ieee80211_iface_limit rsi_iface_limits[] = { 144421eedffSPrameela Rani Garnepudi { 145421eedffSPrameela Rani Garnepudi .max = 1, 146421eedffSPrameela Rani Garnepudi .types = BIT(NL80211_IFTYPE_STATION), 147421eedffSPrameela Rani Garnepudi }, 148421eedffSPrameela Rani Garnepudi { 149421eedffSPrameela Rani Garnepudi .max = 1, 150421eedffSPrameela Rani Garnepudi .types = BIT(NL80211_IFTYPE_AP) | 151421eedffSPrameela Rani Garnepudi BIT(NL80211_IFTYPE_P2P_CLIENT) | 152421eedffSPrameela Rani Garnepudi BIT(NL80211_IFTYPE_P2P_GO), 153421eedffSPrameela Rani Garnepudi }, 154421eedffSPrameela Rani Garnepudi { 155421eedffSPrameela Rani Garnepudi .max = 1, 156421eedffSPrameela Rani Garnepudi .types = BIT(NL80211_IFTYPE_P2P_DEVICE), 157421eedffSPrameela Rani Garnepudi }, 158421eedffSPrameela Rani Garnepudi }; 159421eedffSPrameela Rani Garnepudi 160421eedffSPrameela Rani Garnepudi static const struct ieee80211_iface_combination rsi_iface_combinations[] = { 161421eedffSPrameela Rani Garnepudi { 162421eedffSPrameela Rani Garnepudi .num_different_channels = 1, 163421eedffSPrameela Rani Garnepudi .max_interfaces = 3, 164421eedffSPrameela Rani Garnepudi .limits = rsi_iface_limits, 165421eedffSPrameela Rani Garnepudi .n_limits = ARRAY_SIZE(rsi_iface_limits), 166421eedffSPrameela Rani Garnepudi }, 167421eedffSPrameela Rani Garnepudi }; 168421eedffSPrameela Rani Garnepudi 169dad0d04fSFariya Fatima /** 170dad0d04fSFariya Fatima * rsi_is_cipher_wep() - This function determines if the cipher is WEP or not. 171dad0d04fSFariya Fatima * @common: Pointer to the driver private structure. 172dad0d04fSFariya Fatima * 173dad0d04fSFariya Fatima * Return: If cipher type is WEP, a value of 1 is returned, else 0. 174dad0d04fSFariya Fatima */ 175dad0d04fSFariya Fatima 176dad0d04fSFariya Fatima bool rsi_is_cipher_wep(struct rsi_common *common) 177dad0d04fSFariya Fatima { 178dad0d04fSFariya Fatima if (((common->secinfo.gtk_cipher == WLAN_CIPHER_SUITE_WEP104) || 179dad0d04fSFariya Fatima (common->secinfo.gtk_cipher == WLAN_CIPHER_SUITE_WEP40)) && 180dad0d04fSFariya Fatima (!common->secinfo.ptk_cipher)) 181dad0d04fSFariya Fatima return true; 182dad0d04fSFariya Fatima else 183dad0d04fSFariya Fatima return false; 184dad0d04fSFariya Fatima } 185dad0d04fSFariya Fatima 186dad0d04fSFariya Fatima /** 187dad0d04fSFariya Fatima * rsi_register_rates_channels() - This function registers channels and rates. 188dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 189dad0d04fSFariya Fatima * @band: Operating band to be set. 190dad0d04fSFariya Fatima * 191d5414c23SAditya Pakki * Return: int - 0 on success, negative error on failure. 192dad0d04fSFariya Fatima */ 193d5414c23SAditya Pakki static int rsi_register_rates_channels(struct rsi_hw *adapter, int band) 194dad0d04fSFariya Fatima { 195dad0d04fSFariya Fatima struct ieee80211_supported_band *sbands = &adapter->sbands[band]; 196dad0d04fSFariya Fatima void *channels = NULL; 197dad0d04fSFariya Fatima 19857fbcce3SJohannes Berg if (band == NL80211_BAND_2GHZ) { 199d5414c23SAditya Pakki channels = kmemdup(rsi_2ghz_channels, sizeof(rsi_2ghz_channels), 200d5414c23SAditya Pakki GFP_KERNEL); 201d5414c23SAditya Pakki if (!channels) 202d5414c23SAditya Pakki return -ENOMEM; 20357fbcce3SJohannes Berg sbands->band = NL80211_BAND_2GHZ; 204dad0d04fSFariya Fatima sbands->n_channels = ARRAY_SIZE(rsi_2ghz_channels); 205dad0d04fSFariya Fatima sbands->bitrates = rsi_rates; 206dad0d04fSFariya Fatima sbands->n_bitrates = ARRAY_SIZE(rsi_rates); 207dad0d04fSFariya Fatima } else { 208d5414c23SAditya Pakki channels = kmemdup(rsi_5ghz_channels, sizeof(rsi_5ghz_channels), 209d5414c23SAditya Pakki GFP_KERNEL); 210d5414c23SAditya Pakki if (!channels) 211d5414c23SAditya Pakki return -ENOMEM; 21257fbcce3SJohannes Berg sbands->band = NL80211_BAND_5GHZ; 213dad0d04fSFariya Fatima sbands->n_channels = ARRAY_SIZE(rsi_5ghz_channels); 214dad0d04fSFariya Fatima sbands->bitrates = &rsi_rates[4]; 215dad0d04fSFariya Fatima sbands->n_bitrates = ARRAY_SIZE(rsi_rates) - 4; 216dad0d04fSFariya Fatima } 217dad0d04fSFariya Fatima 218dad0d04fSFariya Fatima sbands->channels = channels; 219dad0d04fSFariya Fatima 220dad0d04fSFariya Fatima memset(&sbands->ht_cap, 0, sizeof(struct ieee80211_sta_ht_cap)); 221dad0d04fSFariya Fatima sbands->ht_cap.ht_supported = true; 222dad0d04fSFariya Fatima sbands->ht_cap.cap = (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | 223dad0d04fSFariya Fatima IEEE80211_HT_CAP_SGI_20 | 224dad0d04fSFariya Fatima IEEE80211_HT_CAP_SGI_40); 225e8c58e7aSJahnavi Meher sbands->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K; 226dad0d04fSFariya Fatima sbands->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; 227dad0d04fSFariya Fatima sbands->ht_cap.mcs.rx_mask[0] = 0xff; 228dad0d04fSFariya Fatima sbands->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; 229dad0d04fSFariya Fatima /* sbands->ht_cap.mcs.rx_highest = 0x82; */ 230d5414c23SAditya Pakki return 0; 231dad0d04fSFariya Fatima } 232dad0d04fSFariya Fatima 2337fdcb8e1SPrameela Rani Garnepudi static int rsi_mac80211_hw_scan_start(struct ieee80211_hw *hw, 2347fdcb8e1SPrameela Rani Garnepudi struct ieee80211_vif *vif, 2357fdcb8e1SPrameela Rani Garnepudi struct ieee80211_scan_request *hw_req) 2367fdcb8e1SPrameela Rani Garnepudi { 2377fdcb8e1SPrameela Rani Garnepudi struct cfg80211_scan_request *scan_req = &hw_req->req; 2387fdcb8e1SPrameela Rani Garnepudi struct rsi_hw *adapter = hw->priv; 2397fdcb8e1SPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 2407fdcb8e1SPrameela Rani Garnepudi 2417fdcb8e1SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "***** Hardware scan start *****\n"); 24273f9b257SSiva Rebbagondla common->mac_ops_resumed = false; 2437fdcb8e1SPrameela Rani Garnepudi 2447fdcb8e1SPrameela Rani Garnepudi if (common->fsm_state != FSM_MAC_INIT_DONE) 2457fdcb8e1SPrameela Rani Garnepudi return -ENODEV; 2467fdcb8e1SPrameela Rani Garnepudi 2477fdcb8e1SPrameela Rani Garnepudi if ((common->wow_flags & RSI_WOW_ENABLED) || 2487fdcb8e1SPrameela Rani Garnepudi scan_req->n_channels == 0) 2497fdcb8e1SPrameela Rani Garnepudi return -EINVAL; 2507fdcb8e1SPrameela Rani Garnepudi 2517fdcb8e1SPrameela Rani Garnepudi /* Scan already in progress. So return */ 2527fdcb8e1SPrameela Rani Garnepudi if (common->bgscan_en) 2537fdcb8e1SPrameela Rani Garnepudi return -EBUSY; 2547fdcb8e1SPrameela Rani Garnepudi 2557fdcb8e1SPrameela Rani Garnepudi /* If STA is not connected, return with special value 1, in order 2567fdcb8e1SPrameela Rani Garnepudi * to start sw_scan in mac80211 2577fdcb8e1SPrameela Rani Garnepudi */ 258f276e20bSJohannes Berg if (!vif->cfg.assoc) 2597fdcb8e1SPrameela Rani Garnepudi return 1; 2607fdcb8e1SPrameela Rani Garnepudi 2617fdcb8e1SPrameela Rani Garnepudi mutex_lock(&common->mutex); 2627fdcb8e1SPrameela Rani Garnepudi common->hwscan = scan_req; 2637fdcb8e1SPrameela Rani Garnepudi if (!rsi_send_bgscan_params(common, RSI_START_BGSCAN)) { 2647fdcb8e1SPrameela Rani Garnepudi if (!rsi_send_bgscan_probe_req(common, vif)) { 2657fdcb8e1SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Background scan started...\n"); 2667fdcb8e1SPrameela Rani Garnepudi common->bgscan_en = true; 2677fdcb8e1SPrameela Rani Garnepudi } 2687fdcb8e1SPrameela Rani Garnepudi } 2697fdcb8e1SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 2707fdcb8e1SPrameela Rani Garnepudi 2717fdcb8e1SPrameela Rani Garnepudi return 0; 2727fdcb8e1SPrameela Rani Garnepudi } 2737fdcb8e1SPrameela Rani Garnepudi 2747fdcb8e1SPrameela Rani Garnepudi static void rsi_mac80211_cancel_hw_scan(struct ieee80211_hw *hw, 2757fdcb8e1SPrameela Rani Garnepudi struct ieee80211_vif *vif) 2767fdcb8e1SPrameela Rani Garnepudi { 2777fdcb8e1SPrameela Rani Garnepudi struct rsi_hw *adapter = hw->priv; 2787fdcb8e1SPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 2797fdcb8e1SPrameela Rani Garnepudi struct cfg80211_scan_info info; 2807fdcb8e1SPrameela Rani Garnepudi 2817fdcb8e1SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "***** Hardware scan stop *****\n"); 2827fdcb8e1SPrameela Rani Garnepudi mutex_lock(&common->mutex); 2837fdcb8e1SPrameela Rani Garnepudi 2847fdcb8e1SPrameela Rani Garnepudi if (common->bgscan_en) { 2857fdcb8e1SPrameela Rani Garnepudi if (!rsi_send_bgscan_params(common, RSI_STOP_BGSCAN)) 2867fdcb8e1SPrameela Rani Garnepudi common->bgscan_en = false; 2877fdcb8e1SPrameela Rani Garnepudi info.aborted = false; 2887fdcb8e1SPrameela Rani Garnepudi ieee80211_scan_completed(adapter->hw, &info); 289e8242ad0SDan Carpenter rsi_dbg(INFO_ZONE, "Back ground scan cancelled\n"); 2907fdcb8e1SPrameela Rani Garnepudi } 2917fdcb8e1SPrameela Rani Garnepudi common->hwscan = NULL; 2927fdcb8e1SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 2937fdcb8e1SPrameela Rani Garnepudi } 2947fdcb8e1SPrameela Rani Garnepudi 295dad0d04fSFariya Fatima /** 29619d2e619SJahnavi Meher * rsi_mac80211_detach() - This function is used to de-initialize the 297dad0d04fSFariya Fatima * Mac80211 stack. 298dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 299dad0d04fSFariya Fatima * 300dad0d04fSFariya Fatima * Return: None. 301dad0d04fSFariya Fatima */ 302dad0d04fSFariya Fatima void rsi_mac80211_detach(struct rsi_hw *adapter) 303dad0d04fSFariya Fatima { 304dad0d04fSFariya Fatima struct ieee80211_hw *hw = adapter->hw; 305b022539dSPrameela Rani Garnepudi enum nl80211_band band; 306dad0d04fSFariya Fatima 307dad0d04fSFariya Fatima if (hw) { 308dad0d04fSFariya Fatima ieee80211_stop_queues(hw); 309dad0d04fSFariya Fatima ieee80211_unregister_hw(hw); 310dad0d04fSFariya Fatima ieee80211_free_hw(hw); 311abd39c6dSSanjay Konduri adapter->hw = NULL; 312dad0d04fSFariya Fatima } 313dad0d04fSFariya Fatima 314b022539dSPrameela Rani Garnepudi for (band = 0; band < NUM_NL80211_BANDS; band++) { 315b022539dSPrameela Rani Garnepudi struct ieee80211_supported_band *sband = 316b022539dSPrameela Rani Garnepudi &adapter->sbands[band]; 317b022539dSPrameela Rani Garnepudi 318b022539dSPrameela Rani Garnepudi kfree(sband->channels); 319b022539dSPrameela Rani Garnepudi } 320b022539dSPrameela Rani Garnepudi 321b022539dSPrameela Rani Garnepudi #ifdef CONFIG_RSI_DEBUGFS 322dad0d04fSFariya Fatima rsi_remove_dbgfs(adapter); 323b022539dSPrameela Rani Garnepudi kfree(adapter->dfsentry); 324b022539dSPrameela Rani Garnepudi #endif 325dad0d04fSFariya Fatima } 326dad0d04fSFariya Fatima EXPORT_SYMBOL_GPL(rsi_mac80211_detach); 327dad0d04fSFariya Fatima 328dad0d04fSFariya Fatima /** 329dad0d04fSFariya Fatima * rsi_indicate_tx_status() - This function indicates the transmit status. 330dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 331dad0d04fSFariya Fatima * @skb: Pointer to the socket buffer structure. 332dad0d04fSFariya Fatima * @status: Status 333dad0d04fSFariya Fatima * 334dad0d04fSFariya Fatima * Return: None. 335dad0d04fSFariya Fatima */ 336dad0d04fSFariya Fatima void rsi_indicate_tx_status(struct rsi_hw *adapter, 337dad0d04fSFariya Fatima struct sk_buff *skb, 338dad0d04fSFariya Fatima int status) 339dad0d04fSFariya Fatima { 340dad0d04fSFariya Fatima struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 3415059afacSPrameela Rani Garnepudi struct skb_info *tx_params; 342dad0d04fSFariya Fatima 3435059afacSPrameela Rani Garnepudi if (!adapter->hw) { 3445059afacSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "##### No MAC #####\n"); 3455059afacSPrameela Rani Garnepudi return; 3465059afacSPrameela Rani Garnepudi } 347dad0d04fSFariya Fatima 348dad0d04fSFariya Fatima if (!status) 349dad0d04fSFariya Fatima info->flags |= IEEE80211_TX_STAT_ACK; 350dad0d04fSFariya Fatima 3515059afacSPrameela Rani Garnepudi tx_params = (struct skb_info *)info->driver_data; 3525059afacSPrameela Rani Garnepudi skb_pull(skb, tx_params->internal_hdr_size); 3535059afacSPrameela Rani Garnepudi memset(info->driver_data, 0, IEEE80211_TX_INFO_DRIVER_DATA_SIZE); 3545059afacSPrameela Rani Garnepudi 355dad0d04fSFariya Fatima ieee80211_tx_status_irqsafe(adapter->hw, skb); 356dad0d04fSFariya Fatima } 357dad0d04fSFariya Fatima 358dad0d04fSFariya Fatima /** 359dad0d04fSFariya Fatima * rsi_mac80211_tx() - This is the handler that 802.11 module calls for each 360dad0d04fSFariya Fatima * transmitted frame.SKB contains the buffer starting 361dad0d04fSFariya Fatima * from the IEEE 802.11 header. 362dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 363dad0d04fSFariya Fatima * @control: Pointer to the ieee80211_tx_control structure 364dad0d04fSFariya Fatima * @skb: Pointer to the socket buffer structure. 365dad0d04fSFariya Fatima * 366dad0d04fSFariya Fatima * Return: None 367dad0d04fSFariya Fatima */ 368dad0d04fSFariya Fatima static void rsi_mac80211_tx(struct ieee80211_hw *hw, 369dad0d04fSFariya Fatima struct ieee80211_tx_control *control, 370dad0d04fSFariya Fatima struct sk_buff *skb) 371dad0d04fSFariya Fatima { 372dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 373dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 37473f9b257SSiva Rebbagondla struct ieee80211_hdr *wlh = (struct ieee80211_hdr *)skb->data; 37573f9b257SSiva Rebbagondla 37673f9b257SSiva Rebbagondla if (ieee80211_is_auth(wlh->frame_control)) 37773f9b257SSiva Rebbagondla common->mac_ops_resumed = false; 378dad0d04fSFariya Fatima 379dad0d04fSFariya Fatima rsi_core_xmit(common, skb); 380dad0d04fSFariya Fatima } 381dad0d04fSFariya Fatima 382dad0d04fSFariya Fatima /** 383dad0d04fSFariya Fatima * rsi_mac80211_start() - This is first handler that 802.11 module calls, since 384dad0d04fSFariya Fatima * the driver init is complete by then, just 385dad0d04fSFariya Fatima * returns success. 386dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 387dad0d04fSFariya Fatima * 388dad0d04fSFariya Fatima * Return: 0 as success. 389dad0d04fSFariya Fatima */ 390dad0d04fSFariya Fatima static int rsi_mac80211_start(struct ieee80211_hw *hw) 391dad0d04fSFariya Fatima { 392dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 393dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 394dad0d04fSFariya Fatima 395edba3532SPavani Muthyala rsi_dbg(ERR_ZONE, "===> Interface UP <===\n"); 396dad0d04fSFariya Fatima mutex_lock(&common->mutex); 397b6c8d06cSKarun Eagalapati if (common->hibernate_resume) { 398b6c8d06cSKarun Eagalapati common->reinit_hw = true; 399b6c8d06cSKarun Eagalapati adapter->host_intf_ops->reinit_device(adapter); 400b6c8d06cSKarun Eagalapati wait_for_completion(&adapter->priv->wlan_init_completion); 401b6c8d06cSKarun Eagalapati } 402dad0d04fSFariya Fatima common->iface_down = false; 403edba3532SPavani Muthyala wiphy_rfkill_start_polling(hw->wiphy); 404e6d64284SPrameela Rani Garnepudi rsi_send_rx_filter_frame(common, 0); 405edba3532SPavani Muthyala mutex_unlock(&common->mutex); 406e6d64284SPrameela Rani Garnepudi 407dad0d04fSFariya Fatima return 0; 408dad0d04fSFariya Fatima } 409dad0d04fSFariya Fatima 410dad0d04fSFariya Fatima /** 411dad0d04fSFariya Fatima * rsi_mac80211_stop() - This is the last handler that 802.11 module calls. 412dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 413dad0d04fSFariya Fatima * 414dad0d04fSFariya Fatima * Return: None. 415dad0d04fSFariya Fatima */ 416dad0d04fSFariya Fatima static void rsi_mac80211_stop(struct ieee80211_hw *hw) 417dad0d04fSFariya Fatima { 418dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 419dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 420dad0d04fSFariya Fatima 421edba3532SPavani Muthyala rsi_dbg(ERR_ZONE, "===> Interface DOWN <===\n"); 422dad0d04fSFariya Fatima mutex_lock(&common->mutex); 423dad0d04fSFariya Fatima common->iface_down = true; 424edba3532SPavani Muthyala wiphy_rfkill_stop_polling(hw->wiphy); 42586583258SPrameela Rani Garnepudi 42686583258SPrameela Rani Garnepudi /* Block all rx frames */ 42786583258SPrameela Rani Garnepudi rsi_send_rx_filter_frame(common, 0xffff); 42886583258SPrameela Rani Garnepudi 429dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 430dad0d04fSFariya Fatima } 431dad0d04fSFariya Fatima 432b8bd3a43SPrameela Rani Garnepudi static int rsi_map_intf_mode(enum nl80211_iftype vif_type) 433b8bd3a43SPrameela Rani Garnepudi { 434b8bd3a43SPrameela Rani Garnepudi switch (vif_type) { 435b8bd3a43SPrameela Rani Garnepudi case NL80211_IFTYPE_STATION: 436b8bd3a43SPrameela Rani Garnepudi return RSI_OPMODE_STA; 437b8bd3a43SPrameela Rani Garnepudi case NL80211_IFTYPE_AP: 438b8bd3a43SPrameela Rani Garnepudi return RSI_OPMODE_AP; 439b8bd3a43SPrameela Rani Garnepudi case NL80211_IFTYPE_P2P_DEVICE: 440b8bd3a43SPrameela Rani Garnepudi return RSI_OPMODE_P2P_CLIENT; 441b8bd3a43SPrameela Rani Garnepudi case NL80211_IFTYPE_P2P_CLIENT: 442b8bd3a43SPrameela Rani Garnepudi return RSI_OPMODE_P2P_CLIENT; 443b8bd3a43SPrameela Rani Garnepudi case NL80211_IFTYPE_P2P_GO: 444b8bd3a43SPrameela Rani Garnepudi return RSI_OPMODE_P2P_GO; 445b8bd3a43SPrameela Rani Garnepudi default: 446b8bd3a43SPrameela Rani Garnepudi return RSI_OPMODE_UNSUPPORTED; 447b8bd3a43SPrameela Rani Garnepudi } 448b8bd3a43SPrameela Rani Garnepudi } 449b8bd3a43SPrameela Rani Garnepudi 450dad0d04fSFariya Fatima /** 451dad0d04fSFariya Fatima * rsi_mac80211_add_interface() - This function is called when a netdevice 452dad0d04fSFariya Fatima * attached to the hardware is enabled. 453dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 454dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 455dad0d04fSFariya Fatima * 456dad0d04fSFariya Fatima * Return: ret: 0 on success, negative error code on failure. 457dad0d04fSFariya Fatima */ 458dad0d04fSFariya Fatima static int rsi_mac80211_add_interface(struct ieee80211_hw *hw, 459dad0d04fSFariya Fatima struct ieee80211_vif *vif) 460dad0d04fSFariya Fatima { 461dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 462dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 463b8bd3a43SPrameela Rani Garnepudi struct vif_priv *vif_info = (struct vif_priv *)vif->drv_priv; 46403c34c0dSPrameela Rani Garnepudi enum opmode intf_mode; 465b8bd3a43SPrameela Rani Garnepudi enum vap_status vap_status; 466b8bd3a43SPrameela Rani Garnepudi int vap_idx = -1, i; 467dad0d04fSFariya Fatima 468db07971dSKarun Eagalapati vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 469dad0d04fSFariya Fatima mutex_lock(&common->mutex); 47003c34c0dSPrameela Rani Garnepudi 471b8bd3a43SPrameela Rani Garnepudi intf_mode = rsi_map_intf_mode(vif->type); 472b8bd3a43SPrameela Rani Garnepudi if (intf_mode == RSI_OPMODE_UNSUPPORTED) { 473dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, 474dad0d04fSFariya Fatima "%s: Interface type %d not supported\n", __func__, 475dad0d04fSFariya Fatima vif->type); 476b8bd3a43SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 477b8bd3a43SPrameela Rani Garnepudi return -EOPNOTSUPP; 478dad0d04fSFariya Fatima } 479b8bd3a43SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_P2P_DEVICE) || 480b8bd3a43SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_CLIENT) || 481b8bd3a43SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) 482b8bd3a43SPrameela Rani Garnepudi common->p2p_enabled = true; 48303c34c0dSPrameela Rani Garnepudi 484b8bd3a43SPrameela Rani Garnepudi /* Get free vap index */ 485b8bd3a43SPrameela Rani Garnepudi for (i = 0; i < RSI_MAX_VIFS; i++) { 4861d219456SSiva Rebbagondla if (!adapter->vifs[i] || 4871d219456SSiva Rebbagondla !memcmp(vif->addr, adapter->vifs[i]->addr, ETH_ALEN)) { 488b8bd3a43SPrameela Rani Garnepudi vap_idx = i; 489b8bd3a43SPrameela Rani Garnepudi break; 490b8bd3a43SPrameela Rani Garnepudi } 491b8bd3a43SPrameela Rani Garnepudi } 492b8bd3a43SPrameela Rani Garnepudi if (vap_idx < 0) { 493b8bd3a43SPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "Reject: Max VAPs reached\n"); 494b8bd3a43SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 495b8bd3a43SPrameela Rani Garnepudi return -EOPNOTSUPP; 496b8bd3a43SPrameela Rani Garnepudi } 497b8bd3a43SPrameela Rani Garnepudi vif_info->vap_id = vap_idx; 498b8bd3a43SPrameela Rani Garnepudi adapter->vifs[vap_idx] = vif; 499b8bd3a43SPrameela Rani Garnepudi adapter->sc_nvifs++; 500b8bd3a43SPrameela Rani Garnepudi vap_status = VAP_ADD; 501b8bd3a43SPrameela Rani Garnepudi 502b8bd3a43SPrameela Rani Garnepudi if (rsi_set_vap_capabilities(common, intf_mode, vif->addr, 503b8bd3a43SPrameela Rani Garnepudi vif_info->vap_id, vap_status)) { 50403c34c0dSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "Failed to set VAP capabilities\n"); 505b8bd3a43SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 506b8bd3a43SPrameela Rani Garnepudi return -EINVAL; 50703c34c0dSPrameela Rani Garnepudi } 50803c34c0dSPrameela Rani Garnepudi 509b8bd3a43SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_AP) || 510b8bd3a43SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) { 51103c34c0dSPrameela Rani Garnepudi rsi_send_rx_filter_frame(common, DISALLOW_BEACONS); 51203c34c0dSPrameela Rani Garnepudi for (i = 0; i < common->max_stations; i++) 51303c34c0dSPrameela Rani Garnepudi common->stations[i].sta = NULL; 51403c34c0dSPrameela Rani Garnepudi } 51503c34c0dSPrameela Rani Garnepudi 516dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 517dad0d04fSFariya Fatima 518b8bd3a43SPrameela Rani Garnepudi return 0; 519dad0d04fSFariya Fatima } 520dad0d04fSFariya Fatima 521dad0d04fSFariya Fatima /** 522dad0d04fSFariya Fatima * rsi_mac80211_remove_interface() - This function notifies driver that an 523dad0d04fSFariya Fatima * interface is going down. 524dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 525dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 526dad0d04fSFariya Fatima * 527dad0d04fSFariya Fatima * Return: None. 528dad0d04fSFariya Fatima */ 529dad0d04fSFariya Fatima static void rsi_mac80211_remove_interface(struct ieee80211_hw *hw, 530dad0d04fSFariya Fatima struct ieee80211_vif *vif) 531dad0d04fSFariya Fatima { 532dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 533dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 53475ca0049SPrameela Rani Garnepudi enum opmode opmode; 535b8bd3a43SPrameela Rani Garnepudi int i; 53675ca0049SPrameela Rani Garnepudi 53775ca0049SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Remove Interface Called\n"); 538dad0d04fSFariya Fatima 539dad0d04fSFariya Fatima mutex_lock(&common->mutex); 54075ca0049SPrameela Rani Garnepudi 54175ca0049SPrameela Rani Garnepudi if (adapter->sc_nvifs <= 0) { 54275ca0049SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 54375ca0049SPrameela Rani Garnepudi return; 54477364aaeSPrameela Rani Garnepudi } 545dad0d04fSFariya Fatima 546b8bd3a43SPrameela Rani Garnepudi opmode = rsi_map_intf_mode(vif->type); 547b8bd3a43SPrameela Rani Garnepudi if (opmode == RSI_OPMODE_UNSUPPORTED) { 548b8bd3a43SPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "Opmode error : %d\n", opmode); 54975ca0049SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 55075ca0049SPrameela Rani Garnepudi return; 55175ca0049SPrameela Rani Garnepudi } 552b8bd3a43SPrameela Rani Garnepudi for (i = 0; i < RSI_MAX_VIFS; i++) { 553b8bd3a43SPrameela Rani Garnepudi if (!adapter->vifs[i]) 554b8bd3a43SPrameela Rani Garnepudi continue; 555b8bd3a43SPrameela Rani Garnepudi if (vif == adapter->vifs[i]) { 55675ca0049SPrameela Rani Garnepudi rsi_set_vap_capabilities(common, opmode, vif->addr, 557b8bd3a43SPrameela Rani Garnepudi i, VAP_DELETE); 55875ca0049SPrameela Rani Garnepudi adapter->sc_nvifs--; 559b8bd3a43SPrameela Rani Garnepudi adapter->vifs[i] = NULL; 560b8bd3a43SPrameela Rani Garnepudi } 561b8bd3a43SPrameela Rani Garnepudi } 562dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 563dad0d04fSFariya Fatima } 564dad0d04fSFariya Fatima 565dad0d04fSFariya Fatima /** 566686a2541SJahnavi Meher * rsi_channel_change() - This function is a performs the checks 567686a2541SJahnavi Meher * required for changing a channel and sets 568686a2541SJahnavi Meher * the channel accordingly. 569686a2541SJahnavi Meher * @hw: Pointer to the ieee80211_hw structure. 570686a2541SJahnavi Meher * 571686a2541SJahnavi Meher * Return: 0 on success, negative error code on failure. 572686a2541SJahnavi Meher */ 573686a2541SJahnavi Meher static int rsi_channel_change(struct ieee80211_hw *hw) 574686a2541SJahnavi Meher { 575686a2541SJahnavi Meher struct rsi_hw *adapter = hw->priv; 576686a2541SJahnavi Meher struct rsi_common *common = adapter->priv; 577686a2541SJahnavi Meher int status = -EOPNOTSUPP; 578686a2541SJahnavi Meher struct ieee80211_channel *curchan = hw->conf.chandef.chan; 579686a2541SJahnavi Meher u16 channel = curchan->hw_value; 580df771911SPrameela Rani Garnepudi struct ieee80211_vif *vif; 581df771911SPrameela Rani Garnepudi bool assoc = false; 582df771911SPrameela Rani Garnepudi int i; 583686a2541SJahnavi Meher 584686a2541SJahnavi Meher rsi_dbg(INFO_ZONE, 585686a2541SJahnavi Meher "%s: Set channel: %d MHz type: %d channel_no %d\n", 586686a2541SJahnavi Meher __func__, curchan->center_freq, 587686a2541SJahnavi Meher curchan->flags, channel); 588686a2541SJahnavi Meher 589df771911SPrameela Rani Garnepudi for (i = 0; i < RSI_MAX_VIFS; i++) { 590df771911SPrameela Rani Garnepudi vif = adapter->vifs[i]; 591df771911SPrameela Rani Garnepudi if (!vif) 592df771911SPrameela Rani Garnepudi continue; 593df771911SPrameela Rani Garnepudi if (vif->type == NL80211_IFTYPE_STATION) { 594f276e20bSJohannes Berg if (vif->cfg.assoc) { 595df771911SPrameela Rani Garnepudi assoc = true; 596df771911SPrameela Rani Garnepudi break; 597df771911SPrameela Rani Garnepudi } 598df771911SPrameela Rani Garnepudi } 599df771911SPrameela Rani Garnepudi } 600df771911SPrameela Rani Garnepudi if (assoc) { 601686a2541SJahnavi Meher if (!common->hw_data_qs_blocked && 602df771911SPrameela Rani Garnepudi (rsi_get_connected_channel(vif) != channel)) { 603686a2541SJahnavi Meher rsi_dbg(INFO_ZONE, "blk data q %d\n", channel); 604686a2541SJahnavi Meher if (!rsi_send_block_unblock_frame(common, true)) 605686a2541SJahnavi Meher common->hw_data_qs_blocked = true; 606686a2541SJahnavi Meher } 607686a2541SJahnavi Meher } 608686a2541SJahnavi Meher 609df771911SPrameela Rani Garnepudi status = rsi_band_check(common, curchan); 610686a2541SJahnavi Meher if (!status) 61161d10842SPrameela Rani Garnepudi status = rsi_set_channel(adapter->priv, curchan); 612686a2541SJahnavi Meher 613df771911SPrameela Rani Garnepudi if (assoc) { 614686a2541SJahnavi Meher if (common->hw_data_qs_blocked && 615df771911SPrameela Rani Garnepudi (rsi_get_connected_channel(vif) == channel)) { 616686a2541SJahnavi Meher rsi_dbg(INFO_ZONE, "unblk data q %d\n", channel); 617686a2541SJahnavi Meher if (!rsi_send_block_unblock_frame(common, false)) 618686a2541SJahnavi Meher common->hw_data_qs_blocked = false; 619686a2541SJahnavi Meher } 620686a2541SJahnavi Meher } 621686a2541SJahnavi Meher 622686a2541SJahnavi Meher return status; 623686a2541SJahnavi Meher } 624686a2541SJahnavi Meher 625686a2541SJahnavi Meher /** 6268b36de8cSPrameela Rani Garnepudi * rsi_config_power() - This function configures tx power to device 6278b36de8cSPrameela Rani Garnepudi * @hw: Pointer to the ieee80211_hw structure. 6288b36de8cSPrameela Rani Garnepudi * 6298b36de8cSPrameela Rani Garnepudi * Return: 0 on success, negative error code on failure. 6308b36de8cSPrameela Rani Garnepudi */ 6318b36de8cSPrameela Rani Garnepudi static int rsi_config_power(struct ieee80211_hw *hw) 6328b36de8cSPrameela Rani Garnepudi { 6338b36de8cSPrameela Rani Garnepudi struct rsi_hw *adapter = hw->priv; 6348b36de8cSPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 6358b36de8cSPrameela Rani Garnepudi struct ieee80211_conf *conf = &hw->conf; 6368b36de8cSPrameela Rani Garnepudi 6378b36de8cSPrameela Rani Garnepudi if (adapter->sc_nvifs <= 0) { 6388b36de8cSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "%s: No virtual interface found\n", __func__); 6398b36de8cSPrameela Rani Garnepudi return -EINVAL; 6408b36de8cSPrameela Rani Garnepudi } 6418b36de8cSPrameela Rani Garnepudi 6428b36de8cSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, 6438b36de8cSPrameela Rani Garnepudi "%s: Set tx power: %d dBM\n", __func__, conf->power_level); 6448b36de8cSPrameela Rani Garnepudi 6458b36de8cSPrameela Rani Garnepudi if (conf->power_level == common->tx_power) 6468b36de8cSPrameela Rani Garnepudi return 0; 6478b36de8cSPrameela Rani Garnepudi 6488b36de8cSPrameela Rani Garnepudi common->tx_power = conf->power_level; 6498b36de8cSPrameela Rani Garnepudi 6508b36de8cSPrameela Rani Garnepudi return rsi_send_radio_params_update(common); 6518b36de8cSPrameela Rani Garnepudi } 6528b36de8cSPrameela Rani Garnepudi 6538b36de8cSPrameela Rani Garnepudi /** 654dad0d04fSFariya Fatima * rsi_mac80211_config() - This function is a handler for configuration 655dad0d04fSFariya Fatima * requests. The stack calls this function to 656dad0d04fSFariya Fatima * change hardware configuration, e.g., channel. 657dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 658dad0d04fSFariya Fatima * @changed: Changed flags set. 659dad0d04fSFariya Fatima * 660dad0d04fSFariya Fatima * Return: 0 on success, negative error code on failure. 661dad0d04fSFariya Fatima */ 662dad0d04fSFariya Fatima static int rsi_mac80211_config(struct ieee80211_hw *hw, 663dad0d04fSFariya Fatima u32 changed) 664dad0d04fSFariya Fatima { 665dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 666dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 667ce86893fSKarun Eagalapati struct ieee80211_conf *conf = &hw->conf; 668dad0d04fSFariya Fatima int status = -EOPNOTSUPP; 669dad0d04fSFariya Fatima 670dad0d04fSFariya Fatima mutex_lock(&common->mutex); 671dad0d04fSFariya Fatima 672686a2541SJahnavi Meher if (changed & IEEE80211_CONF_CHANGE_CHANNEL) 673686a2541SJahnavi Meher status = rsi_channel_change(hw); 674686a2541SJahnavi Meher 6758b36de8cSPrameela Rani Garnepudi /* tx power */ 6768b36de8cSPrameela Rani Garnepudi if (changed & IEEE80211_CONF_CHANGE_POWER) { 6778b36de8cSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "%s: Configuring Power\n", __func__); 6788b36de8cSPrameela Rani Garnepudi status = rsi_config_power(hw); 6798b36de8cSPrameela Rani Garnepudi } 6808b36de8cSPrameela Rani Garnepudi 681ce86893fSKarun Eagalapati /* Power save parameters */ 68273f9b257SSiva Rebbagondla if ((changed & IEEE80211_CONF_CHANGE_PS) && 68373f9b257SSiva Rebbagondla !common->mac_ops_resumed) { 684cbbfdd6cSAmitkumar Karwar struct ieee80211_vif *vif, *sta_vif = NULL; 685ce86893fSKarun Eagalapati unsigned long flags; 686efe877aaSPrameela Rani Garnepudi int i, set_ps = 1; 687ce86893fSKarun Eagalapati 688efe877aaSPrameela Rani Garnepudi for (i = 0; i < RSI_MAX_VIFS; i++) { 689efe877aaSPrameela Rani Garnepudi vif = adapter->vifs[i]; 690efe877aaSPrameela Rani Garnepudi if (!vif) 691efe877aaSPrameela Rani Garnepudi continue; 692efe877aaSPrameela Rani Garnepudi /* Don't go to power save if AP vap exists */ 693efe877aaSPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_AP) || 694efe877aaSPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) { 695efe877aaSPrameela Rani Garnepudi set_ps = 0; 696efe877aaSPrameela Rani Garnepudi break; 697efe877aaSPrameela Rani Garnepudi } 698cbbfdd6cSAmitkumar Karwar if ((vif->type == NL80211_IFTYPE_STATION || 699cbbfdd6cSAmitkumar Karwar vif->type == NL80211_IFTYPE_P2P_CLIENT) && 700f276e20bSJohannes Berg (!sta_vif || vif->cfg.assoc)) 701cbbfdd6cSAmitkumar Karwar sta_vif = vif; 702efe877aaSPrameela Rani Garnepudi } 703cbbfdd6cSAmitkumar Karwar if (set_ps && sta_vif) { 704ce86893fSKarun Eagalapati spin_lock_irqsave(&adapter->ps_lock, flags); 705ce86893fSKarun Eagalapati if (conf->flags & IEEE80211_CONF_PS) 706cbbfdd6cSAmitkumar Karwar rsi_enable_ps(adapter, sta_vif); 707ce86893fSKarun Eagalapati else 708cbbfdd6cSAmitkumar Karwar rsi_disable_ps(adapter, sta_vif); 709ce86893fSKarun Eagalapati spin_unlock_irqrestore(&adapter->ps_lock, flags); 710ce86893fSKarun Eagalapati } 711efe877aaSPrameela Rani Garnepudi } 712ce86893fSKarun Eagalapati 71380a88ecfSKarun Eagalapati /* RTS threshold */ 71480a88ecfSKarun Eagalapati if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 71580a88ecfSKarun Eagalapati rsi_dbg(INFO_ZONE, "RTS threshold\n"); 71680a88ecfSKarun Eagalapati if ((common->rts_threshold) <= IEEE80211_MAX_RTS_THRESHOLD) { 71780a88ecfSKarun Eagalapati rsi_dbg(INFO_ZONE, 71880a88ecfSKarun Eagalapati "%s: Sending vap updates....\n", __func__); 71980a88ecfSKarun Eagalapati status = rsi_send_vap_dynamic_update(common); 72080a88ecfSKarun Eagalapati } 72180a88ecfSKarun Eagalapati } 722dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 723dad0d04fSFariya Fatima 724dad0d04fSFariya Fatima return status; 725dad0d04fSFariya Fatima } 726dad0d04fSFariya Fatima 727dad0d04fSFariya Fatima /** 728dad0d04fSFariya Fatima * rsi_get_connected_channel() - This function is used to get the current 729dad0d04fSFariya Fatima * connected channel number. 7305dfcdc7aSLee Jones * @vif: Pointer to the ieee80211_vif structure. 731dad0d04fSFariya Fatima * 732dad0d04fSFariya Fatima * Return: Current connected AP's channel number is returned. 733dad0d04fSFariya Fatima */ 734df771911SPrameela Rani Garnepudi u16 rsi_get_connected_channel(struct ieee80211_vif *vif) 735dad0d04fSFariya Fatima { 736df771911SPrameela Rani Garnepudi struct ieee80211_bss_conf *bss; 737df771911SPrameela Rani Garnepudi struct ieee80211_channel *channel; 738df771911SPrameela Rani Garnepudi 739df771911SPrameela Rani Garnepudi if (!vif) 740df771911SPrameela Rani Garnepudi return 0; 741df771911SPrameela Rani Garnepudi 742df771911SPrameela Rani Garnepudi bss = &vif->bss_conf; 743df771911SPrameela Rani Garnepudi channel = bss->chandef.chan; 744df771911SPrameela Rani Garnepudi 745df771911SPrameela Rani Garnepudi if (!channel) 746df771911SPrameela Rani Garnepudi return 0; 747df771911SPrameela Rani Garnepudi 748dad0d04fSFariya Fatima return channel->hw_value; 749dad0d04fSFariya Fatima } 750dad0d04fSFariya Fatima 751df771911SPrameela Rani Garnepudi static void rsi_switch_channel(struct rsi_hw *adapter, 752df771911SPrameela Rani Garnepudi struct ieee80211_vif *vif) 753df771911SPrameela Rani Garnepudi { 754df771911SPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 755df771911SPrameela Rani Garnepudi struct ieee80211_channel *channel; 756df771911SPrameela Rani Garnepudi 757df771911SPrameela Rani Garnepudi if (common->iface_down) 758df771911SPrameela Rani Garnepudi return; 759df771911SPrameela Rani Garnepudi if (!vif) 760df771911SPrameela Rani Garnepudi return; 761df771911SPrameela Rani Garnepudi 762df771911SPrameela Rani Garnepudi channel = vif->bss_conf.chandef.chan; 763df771911SPrameela Rani Garnepudi 764df771911SPrameela Rani Garnepudi if (!channel) 765df771911SPrameela Rani Garnepudi return; 766df771911SPrameela Rani Garnepudi 767df771911SPrameela Rani Garnepudi rsi_band_check(common, channel); 768df771911SPrameela Rani Garnepudi rsi_set_channel(common, channel); 769df771911SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Switched to channel - %d\n", channel->hw_value); 770dad0d04fSFariya Fatima } 771dad0d04fSFariya Fatima 772dad0d04fSFariya Fatima /** 773dad0d04fSFariya Fatima * rsi_mac80211_bss_info_changed() - This function is a handler for config 774dad0d04fSFariya Fatima * requests related to BSS parameters that 775dad0d04fSFariya Fatima * may vary during BSS's lifespan. 776dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 777dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 778dad0d04fSFariya Fatima * @bss_conf: Pointer to the ieee80211_bss_conf structure. 779dad0d04fSFariya Fatima * @changed: Changed flags set. 780dad0d04fSFariya Fatima * 781dad0d04fSFariya Fatima * Return: None. 782dad0d04fSFariya Fatima */ 783dad0d04fSFariya Fatima static void rsi_mac80211_bss_info_changed(struct ieee80211_hw *hw, 784dad0d04fSFariya Fatima struct ieee80211_vif *vif, 785dad0d04fSFariya Fatima struct ieee80211_bss_conf *bss_conf, 7867b7090b4SJohannes Berg u64 changed) 787dad0d04fSFariya Fatima { 788dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 789dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 790ce86893fSKarun Eagalapati struct ieee80211_bss_conf *bss = &vif->bss_conf; 791ce86893fSKarun Eagalapati struct ieee80211_conf *conf = &hw->conf; 792e6d64284SPrameela Rani Garnepudi u16 rx_filter_word = 0; 793dad0d04fSFariya Fatima 794dad0d04fSFariya Fatima mutex_lock(&common->mutex); 795dad0d04fSFariya Fatima if (changed & BSS_CHANGED_ASSOC) { 796dad0d04fSFariya Fatima rsi_dbg(INFO_ZONE, "%s: Changed Association status: %d\n", 797f276e20bSJohannes Berg __func__, vif->cfg.assoc); 798f276e20bSJohannes Berg if (vif->cfg.assoc) { 799e6d64284SPrameela Rani Garnepudi /* Send the RX filter frame */ 800e6d64284SPrameela Rani Garnepudi rx_filter_word = (ALLOW_DATA_ASSOC_PEER | 801e6d64284SPrameela Rani Garnepudi ALLOW_CTRL_ASSOC_PEER | 802e6d64284SPrameela Rani Garnepudi ALLOW_MGMT_ASSOC_PEER); 803e6d64284SPrameela Rani Garnepudi rsi_send_rx_filter_frame(common, rx_filter_word); 804e6d64284SPrameela Rani Garnepudi } 805dad0d04fSFariya Fatima rsi_inform_bss_status(common, 806b8bd3a43SPrameela Rani Garnepudi RSI_OPMODE_STA, 807f276e20bSJohannes Berg vif->cfg.assoc, 808dad0d04fSFariya Fatima bss_conf->bssid, 809dad0d04fSFariya Fatima bss_conf->qos, 810f276e20bSJohannes Berg vif->cfg.aid, 8114fd6c476SPrameela Rani Garnepudi NULL, 0, 8124fd6c476SPrameela Rani Garnepudi bss_conf->assoc_capability, vif); 813ce86893fSKarun Eagalapati adapter->ps_info.dtim_interval_duration = bss->dtim_period; 814ce86893fSKarun Eagalapati adapter->ps_info.listen_interval = conf->listen_interval; 815db07971dSKarun Eagalapati 816db07971dSKarun Eagalapati /* If U-APSD is updated, send ps parameters to firmware */ 817f276e20bSJohannes Berg if (vif->cfg.assoc) { 818db07971dSKarun Eagalapati if (common->uapsd_bitmap) { 819db07971dSKarun Eagalapati rsi_dbg(INFO_ZONE, "Configuring UAPSD\n"); 820efe877aaSPrameela Rani Garnepudi rsi_conf_uapsd(adapter, vif); 821db07971dSKarun Eagalapati } 822db07971dSKarun Eagalapati } else { 823db07971dSKarun Eagalapati common->uapsd_bitmap = 0; 824db07971dSKarun Eagalapati } 825dad0d04fSFariya Fatima } 826686a2541SJahnavi Meher 827686a2541SJahnavi Meher if (changed & BSS_CHANGED_CQM) { 828686a2541SJahnavi Meher common->cqm_info.last_cqm_event_rssi = 0; 829686a2541SJahnavi Meher common->cqm_info.rssi_thold = bss_conf->cqm_rssi_thold; 830686a2541SJahnavi Meher common->cqm_info.rssi_hyst = bss_conf->cqm_rssi_hyst; 831f9f46bcaSQiujun Huang rsi_dbg(INFO_ZONE, "RSSI threshold & hysteresis are: %d %d\n", 832686a2541SJahnavi Meher common->cqm_info.rssi_thold, 833686a2541SJahnavi Meher common->cqm_info.rssi_hyst); 834686a2541SJahnavi Meher } 835d26a9559SPrameela Rani Garnepudi 83629ca9e6cSMarek Vasut if (changed & BSS_CHANGED_BEACON_INT) { 83729ca9e6cSMarek Vasut rsi_dbg(INFO_ZONE, "%s: Changed Beacon interval: %d\n", 83829ca9e6cSMarek Vasut __func__, bss_conf->beacon_int); 83929ca9e6cSMarek Vasut if (common->beacon_interval != bss->beacon_int) { 84029ca9e6cSMarek Vasut common->beacon_interval = bss->beacon_int; 84129ca9e6cSMarek Vasut if (vif->type == NL80211_IFTYPE_AP) { 84229ca9e6cSMarek Vasut struct vif_priv *vif_info = (struct vif_priv *)vif->drv_priv; 84329ca9e6cSMarek Vasut 84429ca9e6cSMarek Vasut rsi_set_vap_capabilities(common, RSI_OPMODE_AP, 84529ca9e6cSMarek Vasut vif->addr, vif_info->vap_id, 84629ca9e6cSMarek Vasut VAP_UPDATE); 84729ca9e6cSMarek Vasut } 84829ca9e6cSMarek Vasut } 84929ca9e6cSMarek Vasut adapter->ps_info.listen_interval = 85029ca9e6cSMarek Vasut bss->beacon_int * adapter->ps_info.num_bcns_per_lis_int; 85129ca9e6cSMarek Vasut } 85229ca9e6cSMarek Vasut 853d26a9559SPrameela Rani Garnepudi if ((changed & BSS_CHANGED_BEACON_ENABLED) && 854af756872SPrameela Rani Garnepudi ((vif->type == NL80211_IFTYPE_AP) || 855af756872SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO))) { 856d26a9559SPrameela Rani Garnepudi if (bss->enable_beacon) { 857d26a9559SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "===> BEACON ENABLED <===\n"); 858d26a9559SPrameela Rani Garnepudi common->beacon_enabled = 1; 859d26a9559SPrameela Rani Garnepudi } else { 860d26a9559SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "===> BEACON DISABLED <===\n"); 861d26a9559SPrameela Rani Garnepudi common->beacon_enabled = 0; 862d26a9559SPrameela Rani Garnepudi } 863d26a9559SPrameela Rani Garnepudi } 864d26a9559SPrameela Rani Garnepudi 865dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 866dad0d04fSFariya Fatima } 867dad0d04fSFariya Fatima 868dad0d04fSFariya Fatima /** 869dad0d04fSFariya Fatima * rsi_mac80211_conf_filter() - This function configure the device's RX filter. 870dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 8715dfcdc7aSLee Jones * @changed_flags: Changed flags set. 872dad0d04fSFariya Fatima * @total_flags: Total initial flags set. 873dad0d04fSFariya Fatima * @multicast: Multicast. 874dad0d04fSFariya Fatima * 875dad0d04fSFariya Fatima * Return: None. 876dad0d04fSFariya Fatima */ 877dad0d04fSFariya Fatima static void rsi_mac80211_conf_filter(struct ieee80211_hw *hw, 878dad0d04fSFariya Fatima u32 changed_flags, 879dad0d04fSFariya Fatima u32 *total_flags, 880dad0d04fSFariya Fatima u64 multicast) 881dad0d04fSFariya Fatima { 882dad0d04fSFariya Fatima /* Not doing much here as of now */ 883dad0d04fSFariya Fatima *total_flags &= RSI_SUPP_FILTERS; 884dad0d04fSFariya Fatima } 885dad0d04fSFariya Fatima 886dad0d04fSFariya Fatima /** 887dad0d04fSFariya Fatima * rsi_mac80211_conf_tx() - This function configures TX queue parameters 888dad0d04fSFariya Fatima * (EDCF (aifs, cw_min, cw_max), bursting) 889dad0d04fSFariya Fatima * for a hardware TX queue. 890dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure 891dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 892*b008f4a1SJohannes Berg * @link_id: the link ID if MLO is used, otherwise 0 893dad0d04fSFariya Fatima * @queue: Queue number. 894dad0d04fSFariya Fatima * @params: Pointer to ieee80211_tx_queue_params structure. 895dad0d04fSFariya Fatima * 896dad0d04fSFariya Fatima * Return: 0 on success, negative error code on failure. 897dad0d04fSFariya Fatima */ 898dad0d04fSFariya Fatima static int rsi_mac80211_conf_tx(struct ieee80211_hw *hw, 899b3e2130bSJohannes Berg struct ieee80211_vif *vif, 900b3e2130bSJohannes Berg unsigned int link_id, u16 queue, 901dad0d04fSFariya Fatima const struct ieee80211_tx_queue_params *params) 902dad0d04fSFariya Fatima { 903dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 904dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 905dad0d04fSFariya Fatima u8 idx = 0; 906dad0d04fSFariya Fatima 907dad0d04fSFariya Fatima if (queue >= IEEE80211_NUM_ACS) 908dad0d04fSFariya Fatima return 0; 909dad0d04fSFariya Fatima 910dad0d04fSFariya Fatima rsi_dbg(INFO_ZONE, 911dad0d04fSFariya Fatima "%s: Conf queue %d, aifs: %d, cwmin: %d cwmax: %d, txop: %d\n", 912dad0d04fSFariya Fatima __func__, queue, params->aifs, 913dad0d04fSFariya Fatima params->cw_min, params->cw_max, params->txop); 914dad0d04fSFariya Fatima 915dad0d04fSFariya Fatima mutex_lock(&common->mutex); 916dad0d04fSFariya Fatima /* Map into the way the f/w expects */ 917dad0d04fSFariya Fatima switch (queue) { 918dad0d04fSFariya Fatima case IEEE80211_AC_VO: 919dad0d04fSFariya Fatima idx = VO_Q; 920dad0d04fSFariya Fatima break; 921dad0d04fSFariya Fatima case IEEE80211_AC_VI: 922dad0d04fSFariya Fatima idx = VI_Q; 923dad0d04fSFariya Fatima break; 924dad0d04fSFariya Fatima case IEEE80211_AC_BE: 925dad0d04fSFariya Fatima idx = BE_Q; 926dad0d04fSFariya Fatima break; 927dad0d04fSFariya Fatima case IEEE80211_AC_BK: 928dad0d04fSFariya Fatima idx = BK_Q; 929dad0d04fSFariya Fatima break; 930dad0d04fSFariya Fatima default: 931dad0d04fSFariya Fatima idx = BE_Q; 932dad0d04fSFariya Fatima break; 933dad0d04fSFariya Fatima } 934dad0d04fSFariya Fatima 935dad0d04fSFariya Fatima memcpy(&common->edca_params[idx], 936dad0d04fSFariya Fatima params, 937dad0d04fSFariya Fatima sizeof(struct ieee80211_tx_queue_params)); 938db07971dSKarun Eagalapati 939db07971dSKarun Eagalapati if (params->uapsd) 940db07971dSKarun Eagalapati common->uapsd_bitmap |= idx; 941db07971dSKarun Eagalapati else 942db07971dSKarun Eagalapati common->uapsd_bitmap &= (~idx); 943db07971dSKarun Eagalapati 944dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 945dad0d04fSFariya Fatima 946dad0d04fSFariya Fatima return 0; 947dad0d04fSFariya Fatima } 948dad0d04fSFariya Fatima 949dad0d04fSFariya Fatima /** 950dad0d04fSFariya Fatima * rsi_hal_key_config() - This function loads the keys into the firmware. 951dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 952dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 953dad0d04fSFariya Fatima * @key: Pointer to the ieee80211_key_conf structure. 9545dfcdc7aSLee Jones * @sta: Pointer to the ieee80211_sta structure. 955dad0d04fSFariya Fatima * 956fc438672SDan Carpenter * Return: status: 0 on success, negative error codes on failure. 957dad0d04fSFariya Fatima */ 958dad0d04fSFariya Fatima static int rsi_hal_key_config(struct ieee80211_hw *hw, 959dad0d04fSFariya Fatima struct ieee80211_vif *vif, 96038ef6235SPrameela Rani Garnepudi struct ieee80211_key_conf *key, 96138ef6235SPrameela Rani Garnepudi struct ieee80211_sta *sta) 962dad0d04fSFariya Fatima { 963dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 96438ef6235SPrameela Rani Garnepudi struct rsi_sta *rsta = NULL; 965dad0d04fSFariya Fatima int status; 966dad0d04fSFariya Fatima u8 key_type; 96738ef6235SPrameela Rani Garnepudi s16 sta_id = 0; 968dad0d04fSFariya Fatima 969dad0d04fSFariya Fatima if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 970dad0d04fSFariya Fatima key_type = RSI_PAIRWISE_KEY; 971dad0d04fSFariya Fatima else 972dad0d04fSFariya Fatima key_type = RSI_GROUP_KEY; 973dad0d04fSFariya Fatima 974dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: Cipher 0x%x key_type: %d key_len: %d\n", 975dad0d04fSFariya Fatima __func__, key->cipher, key_type, key->keylen); 976dad0d04fSFariya Fatima 9774671c209SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_AP) || 9784671c209SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) { 97938ef6235SPrameela Rani Garnepudi if (sta) { 98038ef6235SPrameela Rani Garnepudi rsta = rsi_find_sta(adapter->priv, sta->addr); 98138ef6235SPrameela Rani Garnepudi if (rsta) 98238ef6235SPrameela Rani Garnepudi sta_id = rsta->sta_id; 98338ef6235SPrameela Rani Garnepudi } 98438ef6235SPrameela Rani Garnepudi adapter->priv->key = key; 98538ef6235SPrameela Rani Garnepudi } else { 986dad0d04fSFariya Fatima if ((key->cipher == WLAN_CIPHER_SUITE_WEP104) || 987dad0d04fSFariya Fatima (key->cipher == WLAN_CIPHER_SUITE_WEP40)) { 988dad0d04fSFariya Fatima status = rsi_hal_load_key(adapter->priv, 989dad0d04fSFariya Fatima key->key, 990dad0d04fSFariya Fatima key->keylen, 991dad0d04fSFariya Fatima RSI_PAIRWISE_KEY, 992dad0d04fSFariya Fatima key->keyidx, 99338ef6235SPrameela Rani Garnepudi key->cipher, 994eac4eed3SPrameela Rani Garnepudi sta_id, 995eac4eed3SPrameela Rani Garnepudi vif); 996dad0d04fSFariya Fatima if (status) 997dad0d04fSFariya Fatima return status; 998dad0d04fSFariya Fatima } 99938ef6235SPrameela Rani Garnepudi } 100038ef6235SPrameela Rani Garnepudi 1001e1fd7ceeSGustavo A. R. Silva status = rsi_hal_load_key(adapter->priv, 1002dad0d04fSFariya Fatima key->key, 1003dad0d04fSFariya Fatima key->keylen, 1004dad0d04fSFariya Fatima key_type, 1005dad0d04fSFariya Fatima key->keyidx, 100638ef6235SPrameela Rani Garnepudi key->cipher, 1007eac4eed3SPrameela Rani Garnepudi sta_id, 1008eac4eed3SPrameela Rani Garnepudi vif); 10094fd6c476SPrameela Rani Garnepudi if (status) 10104fd6c476SPrameela Rani Garnepudi return status; 10114fd6c476SPrameela Rani Garnepudi 1012f613e480SNathan Chancellor if (vif->type == NL80211_IFTYPE_STATION && 10134fd6c476SPrameela Rani Garnepudi (key->cipher == WLAN_CIPHER_SUITE_WEP104 || 10144fd6c476SPrameela Rani Garnepudi key->cipher == WLAN_CIPHER_SUITE_WEP40)) { 10154fd6c476SPrameela Rani Garnepudi if (!rsi_send_block_unblock_frame(adapter->priv, false)) 10164fd6c476SPrameela Rani Garnepudi adapter->priv->hw_data_qs_blocked = false; 10174fd6c476SPrameela Rani Garnepudi } 10184fd6c476SPrameela Rani Garnepudi 10194fd6c476SPrameela Rani Garnepudi return 0; 1020dad0d04fSFariya Fatima } 1021dad0d04fSFariya Fatima 1022dad0d04fSFariya Fatima /** 1023dad0d04fSFariya Fatima * rsi_mac80211_set_key() - This function sets type of key to be loaded. 1024dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 1025dad0d04fSFariya Fatima * @cmd: enum set_key_cmd. 1026dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 1027501c0980SLee Jones * @sta: Pointer to the ieee80211_sta structure. 1028dad0d04fSFariya Fatima * @key: Pointer to the ieee80211_key_conf structure. 1029dad0d04fSFariya Fatima * 1030dad0d04fSFariya Fatima * Return: status: 0 on success, negative error code on failure. 1031dad0d04fSFariya Fatima */ 1032dad0d04fSFariya Fatima static int rsi_mac80211_set_key(struct ieee80211_hw *hw, 1033dad0d04fSFariya Fatima enum set_key_cmd cmd, 1034dad0d04fSFariya Fatima struct ieee80211_vif *vif, 1035dad0d04fSFariya Fatima struct ieee80211_sta *sta, 1036dad0d04fSFariya Fatima struct ieee80211_key_conf *key) 1037dad0d04fSFariya Fatima { 1038dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 1039dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 1040dad0d04fSFariya Fatima struct security_info *secinfo = &common->secinfo; 1041dad0d04fSFariya Fatima int status; 1042dad0d04fSFariya Fatima 1043dad0d04fSFariya Fatima mutex_lock(&common->mutex); 1044dad0d04fSFariya Fatima switch (cmd) { 1045dad0d04fSFariya Fatima case SET_KEY: 104638ef6235SPrameela Rani Garnepudi status = rsi_hal_key_config(hw, vif, key, sta); 1047dad0d04fSFariya Fatima if (status) { 1048dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 1049dad0d04fSFariya Fatima return status; 1050dad0d04fSFariya Fatima } 1051dad0d04fSFariya Fatima 1052dad0d04fSFariya Fatima if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 1053dad0d04fSFariya Fatima secinfo->ptk_cipher = key->cipher; 1054dad0d04fSFariya Fatima else 1055dad0d04fSFariya Fatima secinfo->gtk_cipher = key->cipher; 1056dad0d04fSFariya Fatima 1057dad0d04fSFariya Fatima key->hw_key_idx = key->keyidx; 1058dad0d04fSFariya Fatima key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; 1059dad0d04fSFariya Fatima 1060dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: RSI set_key\n", __func__); 1061dad0d04fSFariya Fatima break; 1062dad0d04fSFariya Fatima 1063dad0d04fSFariya Fatima case DISABLE_KEY: 1064dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: RSI del key\n", __func__); 1065dad0d04fSFariya Fatima memset(key, 0, sizeof(struct ieee80211_key_conf)); 106638ef6235SPrameela Rani Garnepudi status = rsi_hal_key_config(hw, vif, key, sta); 1067dad0d04fSFariya Fatima break; 1068dad0d04fSFariya Fatima 1069dad0d04fSFariya Fatima default: 1070dad0d04fSFariya Fatima status = -EOPNOTSUPP; 1071dad0d04fSFariya Fatima break; 1072dad0d04fSFariya Fatima } 1073dad0d04fSFariya Fatima 1074dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 1075dad0d04fSFariya Fatima return status; 1076dad0d04fSFariya Fatima } 1077dad0d04fSFariya Fatima 1078dad0d04fSFariya Fatima /** 1079dad0d04fSFariya Fatima * rsi_mac80211_ampdu_action() - This function selects the AMPDU action for 1080dad0d04fSFariya Fatima * the corresponding mlme_action flag and 1081dad0d04fSFariya Fatima * informs the f/w regarding this. 1082dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 1083dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 108450ea05efSSara Sharon * @params: Pointer to A-MPDU action parameters 1085dad0d04fSFariya Fatima * 1086dad0d04fSFariya Fatima * Return: status: 0 on success, negative error code on failure. 1087dad0d04fSFariya Fatima */ 1088dad0d04fSFariya Fatima static int rsi_mac80211_ampdu_action(struct ieee80211_hw *hw, 1089dad0d04fSFariya Fatima struct ieee80211_vif *vif, 109050ea05efSSara Sharon struct ieee80211_ampdu_params *params) 1091dad0d04fSFariya Fatima { 1092dad0d04fSFariya Fatima int status = -EOPNOTSUPP; 1093dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 1094dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 109532be57a6SPrameela Rani Garnepudi struct rsi_sta *rsta = NULL; 109632be57a6SPrameela Rani Garnepudi u16 seq_no = 0, seq_start = 0; 1097dad0d04fSFariya Fatima u8 ii = 0; 109850ea05efSSara Sharon struct ieee80211_sta *sta = params->sta; 109932be57a6SPrameela Rani Garnepudi u8 sta_id = 0; 110050ea05efSSara Sharon enum ieee80211_ampdu_mlme_action action = params->action; 110150ea05efSSara Sharon u16 tid = params->tid; 110250ea05efSSara Sharon u16 *ssn = ¶ms->ssn; 110350ea05efSSara Sharon u8 buf_size = params->buf_size; 1104dad0d04fSFariya Fatima 1105dad0d04fSFariya Fatima for (ii = 0; ii < RSI_MAX_VIFS; ii++) { 1106dad0d04fSFariya Fatima if (vif == adapter->vifs[ii]) 1107dad0d04fSFariya Fatima break; 1108dad0d04fSFariya Fatima } 1109dad0d04fSFariya Fatima 11104d375c2eSzhangyue if (ii >= RSI_MAX_VIFS) 11114d375c2eSzhangyue return status; 11124d375c2eSzhangyue 1113dad0d04fSFariya Fatima mutex_lock(&common->mutex); 111432be57a6SPrameela Rani Garnepudi 1115dad0d04fSFariya Fatima if (ssn != NULL) 1116dad0d04fSFariya Fatima seq_no = *ssn; 1117dad0d04fSFariya Fatima 1118c7245c09SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_AP) || 1119c7245c09SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) { 112032be57a6SPrameela Rani Garnepudi rsta = rsi_find_sta(common, sta->addr); 112132be57a6SPrameela Rani Garnepudi if (!rsta) { 112232be57a6SPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "No station mapped\n"); 11230270639eSDan Carpenter status = 0; 11240270639eSDan Carpenter goto unlock; 112532be57a6SPrameela Rani Garnepudi } 112632be57a6SPrameela Rani Garnepudi sta_id = rsta->sta_id; 112732be57a6SPrameela Rani Garnepudi } 112832be57a6SPrameela Rani Garnepudi 112932be57a6SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, 113032be57a6SPrameela Rani Garnepudi "%s: AMPDU action tid=%d ssn=0x%x, buf_size=%d sta_id=%d\n", 113132be57a6SPrameela Rani Garnepudi __func__, tid, seq_no, buf_size, sta_id); 113232be57a6SPrameela Rani Garnepudi 1133dad0d04fSFariya Fatima switch (action) { 1134dad0d04fSFariya Fatima case IEEE80211_AMPDU_RX_START: 1135dad0d04fSFariya Fatima status = rsi_send_aggregation_params_frame(common, 1136dad0d04fSFariya Fatima tid, 1137dad0d04fSFariya Fatima seq_no, 1138dad0d04fSFariya Fatima buf_size, 113932be57a6SPrameela Rani Garnepudi STA_RX_ADDBA_DONE, 114032be57a6SPrameela Rani Garnepudi sta_id); 1141dad0d04fSFariya Fatima break; 1142dad0d04fSFariya Fatima 1143dad0d04fSFariya Fatima case IEEE80211_AMPDU_RX_STOP: 1144dad0d04fSFariya Fatima status = rsi_send_aggregation_params_frame(common, 1145dad0d04fSFariya Fatima tid, 1146dad0d04fSFariya Fatima 0, 1147dad0d04fSFariya Fatima buf_size, 114832be57a6SPrameela Rani Garnepudi STA_RX_DELBA, 114932be57a6SPrameela Rani Garnepudi sta_id); 1150dad0d04fSFariya Fatima break; 1151dad0d04fSFariya Fatima 1152dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_START: 1153c7245c09SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_STATION) || 1154c7245c09SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_CLIENT)) 1155dad0d04fSFariya Fatima common->vif_info[ii].seq_start = seq_no; 1156c7245c09SPrameela Rani Garnepudi else if ((vif->type == NL80211_IFTYPE_AP) || 1157c7245c09SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) 115832be57a6SPrameela Rani Garnepudi rsta->seq_start[tid] = seq_no; 11592ce113deSJohannes Berg status = IEEE80211_AMPDU_TX_START_IMMEDIATE; 1160dad0d04fSFariya Fatima break; 1161dad0d04fSFariya Fatima 1162dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_STOP_CONT: 1163dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_STOP_FLUSH: 1164dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1165dad0d04fSFariya Fatima status = rsi_send_aggregation_params_frame(common, 1166dad0d04fSFariya Fatima tid, 1167dad0d04fSFariya Fatima seq_no, 1168dad0d04fSFariya Fatima buf_size, 116932be57a6SPrameela Rani Garnepudi STA_TX_DELBA, 117032be57a6SPrameela Rani Garnepudi sta_id); 1171dad0d04fSFariya Fatima if (!status) 1172dad0d04fSFariya Fatima ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 1173dad0d04fSFariya Fatima break; 1174dad0d04fSFariya Fatima 1175dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_OPERATIONAL: 1176c7245c09SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_STATION) || 1177c7245c09SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_CLIENT)) 117832be57a6SPrameela Rani Garnepudi seq_start = common->vif_info[ii].seq_start; 1179c7245c09SPrameela Rani Garnepudi else if ((vif->type == NL80211_IFTYPE_AP) || 1180c7245c09SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) 118132be57a6SPrameela Rani Garnepudi seq_start = rsta->seq_start[tid]; 1182dad0d04fSFariya Fatima status = rsi_send_aggregation_params_frame(common, 1183dad0d04fSFariya Fatima tid, 118432be57a6SPrameela Rani Garnepudi seq_start, 1185dad0d04fSFariya Fatima buf_size, 118632be57a6SPrameela Rani Garnepudi STA_TX_ADDBA_DONE, 118732be57a6SPrameela Rani Garnepudi sta_id); 1188dad0d04fSFariya Fatima break; 1189dad0d04fSFariya Fatima 1190dad0d04fSFariya Fatima default: 1191a53e8f3eSColin Ian King rsi_dbg(ERR_ZONE, "%s: Unknown AMPDU action\n", __func__); 1192dad0d04fSFariya Fatima break; 1193dad0d04fSFariya Fatima } 1194dad0d04fSFariya Fatima 11950270639eSDan Carpenter unlock: 1196dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 1197dad0d04fSFariya Fatima return status; 1198dad0d04fSFariya Fatima } 1199dad0d04fSFariya Fatima 1200dad0d04fSFariya Fatima /** 1201dad0d04fSFariya Fatima * rsi_mac80211_set_rts_threshold() - This function sets rts threshold value. 1202dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 1203dad0d04fSFariya Fatima * @value: Rts threshold value. 1204dad0d04fSFariya Fatima * 1205dad0d04fSFariya Fatima * Return: 0 on success. 1206dad0d04fSFariya Fatima */ 1207dad0d04fSFariya Fatima static int rsi_mac80211_set_rts_threshold(struct ieee80211_hw *hw, 1208dad0d04fSFariya Fatima u32 value) 1209dad0d04fSFariya Fatima { 1210dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 1211dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 1212dad0d04fSFariya Fatima 1213dad0d04fSFariya Fatima mutex_lock(&common->mutex); 1214dad0d04fSFariya Fatima common->rts_threshold = value; 1215dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 1216dad0d04fSFariya Fatima 1217dad0d04fSFariya Fatima return 0; 1218dad0d04fSFariya Fatima } 1219dad0d04fSFariya Fatima 1220dad0d04fSFariya Fatima /** 1221dad0d04fSFariya Fatima * rsi_mac80211_set_rate_mask() - This function sets bitrate_mask to be used. 1222dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure 1223dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 1224dad0d04fSFariya Fatima * @mask: Pointer to the cfg80211_bitrate_mask structure. 1225dad0d04fSFariya Fatima * 1226dad0d04fSFariya Fatima * Return: 0 on success. 1227dad0d04fSFariya Fatima */ 1228dad0d04fSFariya Fatima static int rsi_mac80211_set_rate_mask(struct ieee80211_hw *hw, 1229dad0d04fSFariya Fatima struct ieee80211_vif *vif, 1230dad0d04fSFariya Fatima const struct cfg80211_bitrate_mask *mask) 1231dad0d04fSFariya Fatima { 1232b515d097SMartin Fuzzey const unsigned int mcs_offset = ARRAY_SIZE(rsi_rates); 1233dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 1234dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 1235b515d097SMartin Fuzzey int i; 1236dad0d04fSFariya Fatima 1237dad0d04fSFariya Fatima mutex_lock(&common->mutex); 1238dad0d04fSFariya Fatima 1239b515d097SMartin Fuzzey for (i = 0; i < ARRAY_SIZE(common->rate_config); i++) { 1240b515d097SMartin Fuzzey struct rsi_rate_config *cfg = &common->rate_config[i]; 1241b515d097SMartin Fuzzey u32 bm; 1242b515d097SMartin Fuzzey 1243b515d097SMartin Fuzzey bm = mask->control[i].legacy | (mask->control[i].ht_mcs[0] << mcs_offset); 1244b515d097SMartin Fuzzey if (hweight32(bm) == 1) { /* single rate */ 1245b515d097SMartin Fuzzey int rate_index = ffs(bm) - 1; 1246b515d097SMartin Fuzzey 1247b515d097SMartin Fuzzey if (rate_index < mcs_offset) 1248b515d097SMartin Fuzzey cfg->fixed_hw_rate = rsi_rates[rate_index].hw_value; 1249b515d097SMartin Fuzzey else 1250b515d097SMartin Fuzzey cfg->fixed_hw_rate = rsi_mcsrates[rate_index - mcs_offset]; 1251b515d097SMartin Fuzzey cfg->fixed_enabled = true; 1252dad0d04fSFariya Fatima } else { 1253b515d097SMartin Fuzzey cfg->configured_mask = bm; 1254b515d097SMartin Fuzzey cfg->fixed_enabled = false; 1255dad0d04fSFariya Fatima } 1256b515d097SMartin Fuzzey } 1257b515d097SMartin Fuzzey 1258dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 1259dad0d04fSFariya Fatima 1260dad0d04fSFariya Fatima return 0; 1261dad0d04fSFariya Fatima } 1262dad0d04fSFariya Fatima 1263dad0d04fSFariya Fatima /** 1264686a2541SJahnavi Meher * rsi_perform_cqm() - This function performs cqm. 1265686a2541SJahnavi Meher * @common: Pointer to the driver private structure. 1266686a2541SJahnavi Meher * @bssid: pointer to the bssid. 1267686a2541SJahnavi Meher * @rssi: RSSI value. 12685dfcdc7aSLee Jones * @vif: Pointer to the ieee80211_vif structure. 1269686a2541SJahnavi Meher */ 1270686a2541SJahnavi Meher static void rsi_perform_cqm(struct rsi_common *common, 1271686a2541SJahnavi Meher u8 *bssid, 1272af756872SPrameela Rani Garnepudi s8 rssi, 1273af756872SPrameela Rani Garnepudi struct ieee80211_vif *vif) 1274686a2541SJahnavi Meher { 1275686a2541SJahnavi Meher s8 last_event = common->cqm_info.last_cqm_event_rssi; 1276686a2541SJahnavi Meher int thold = common->cqm_info.rssi_thold; 1277686a2541SJahnavi Meher u32 hyst = common->cqm_info.rssi_hyst; 1278686a2541SJahnavi Meher enum nl80211_cqm_rssi_threshold_event event; 1279686a2541SJahnavi Meher 1280686a2541SJahnavi Meher if (rssi < thold && (last_event == 0 || rssi < (last_event - hyst))) 1281686a2541SJahnavi Meher event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW; 1282686a2541SJahnavi Meher else if (rssi > thold && 1283686a2541SJahnavi Meher (last_event == 0 || rssi > (last_event + hyst))) 1284686a2541SJahnavi Meher event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH; 1285686a2541SJahnavi Meher else 1286686a2541SJahnavi Meher return; 1287686a2541SJahnavi Meher 1288686a2541SJahnavi Meher common->cqm_info.last_cqm_event_rssi = rssi; 1289686a2541SJahnavi Meher rsi_dbg(INFO_ZONE, "CQM: Notifying event: %d\n", event); 1290af756872SPrameela Rani Garnepudi ieee80211_cqm_rssi_notify(vif, event, rssi, GFP_KERNEL); 1291686a2541SJahnavi Meher 1292686a2541SJahnavi Meher return; 1293686a2541SJahnavi Meher } 1294686a2541SJahnavi Meher 1295686a2541SJahnavi Meher /** 1296dad0d04fSFariya Fatima * rsi_fill_rx_status() - This function fills rx status in 1297dad0d04fSFariya Fatima * ieee80211_rx_status structure. 1298dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 1299dad0d04fSFariya Fatima * @skb: Pointer to the socket buffer structure. 1300dad0d04fSFariya Fatima * @common: Pointer to the driver private structure. 1301dad0d04fSFariya Fatima * @rxs: Pointer to the ieee80211_rx_status structure. 1302dad0d04fSFariya Fatima * 1303dad0d04fSFariya Fatima * Return: None. 1304dad0d04fSFariya Fatima */ 1305dad0d04fSFariya Fatima static void rsi_fill_rx_status(struct ieee80211_hw *hw, 1306dad0d04fSFariya Fatima struct sk_buff *skb, 1307dad0d04fSFariya Fatima struct rsi_common *common, 1308dad0d04fSFariya Fatima struct ieee80211_rx_status *rxs) 1309dad0d04fSFariya Fatima { 1310eac4eed3SPrameela Rani Garnepudi struct rsi_hw *adapter = common->priv; 1311eac4eed3SPrameela Rani Garnepudi struct ieee80211_vif *vif; 1312eac4eed3SPrameela Rani Garnepudi struct ieee80211_bss_conf *bss = NULL; 1313dad0d04fSFariya Fatima struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 1314dad0d04fSFariya Fatima struct skb_info *rx_params = (struct skb_info *)info->driver_data; 1315dad0d04fSFariya Fatima struct ieee80211_hdr *hdr; 1316dad0d04fSFariya Fatima char rssi = rx_params->rssi; 1317dad0d04fSFariya Fatima u8 hdrlen = 0; 1318dad0d04fSFariya Fatima u8 channel = rx_params->channel; 1319dad0d04fSFariya Fatima s32 freq; 1320eac4eed3SPrameela Rani Garnepudi int i; 1321dad0d04fSFariya Fatima 1322dad0d04fSFariya Fatima hdr = ((struct ieee80211_hdr *)(skb->data)); 1323dad0d04fSFariya Fatima hdrlen = ieee80211_hdrlen(hdr->frame_control); 1324dad0d04fSFariya Fatima 1325dad0d04fSFariya Fatima memset(info, 0, sizeof(struct ieee80211_tx_info)); 1326dad0d04fSFariya Fatima 1327dad0d04fSFariya Fatima rxs->signal = -(rssi); 1328dad0d04fSFariya Fatima 1329aabd3ad4SJahnavi Meher rxs->band = common->band; 1330dad0d04fSFariya Fatima 1331dad0d04fSFariya Fatima freq = ieee80211_channel_to_frequency(channel, rxs->band); 1332dad0d04fSFariya Fatima 1333dad0d04fSFariya Fatima if (freq) 1334dad0d04fSFariya Fatima rxs->freq = freq; 1335dad0d04fSFariya Fatima 1336dad0d04fSFariya Fatima if (ieee80211_has_protected(hdr->frame_control)) { 1337dad0d04fSFariya Fatima if (rsi_is_cipher_wep(common)) { 1338dad0d04fSFariya Fatima memmove(skb->data + 4, skb->data, hdrlen); 1339dad0d04fSFariya Fatima skb_pull(skb, 4); 1340dad0d04fSFariya Fatima } else { 1341dad0d04fSFariya Fatima memmove(skb->data + 8, skb->data, hdrlen); 1342dad0d04fSFariya Fatima skb_pull(skb, 8); 1343dad0d04fSFariya Fatima rxs->flag |= RX_FLAG_MMIC_STRIPPED; 1344dad0d04fSFariya Fatima } 1345dad0d04fSFariya Fatima rxs->flag |= RX_FLAG_DECRYPTED; 1346dad0d04fSFariya Fatima rxs->flag |= RX_FLAG_IV_STRIPPED; 1347dad0d04fSFariya Fatima } 1348686a2541SJahnavi Meher 1349eac4eed3SPrameela Rani Garnepudi for (i = 0; i < RSI_MAX_VIFS; i++) { 1350eac4eed3SPrameela Rani Garnepudi vif = adapter->vifs[i]; 1351eac4eed3SPrameela Rani Garnepudi if (!vif) 1352eac4eed3SPrameela Rani Garnepudi continue; 1353af756872SPrameela Rani Garnepudi if (vif->type == NL80211_IFTYPE_STATION) { 1354eac4eed3SPrameela Rani Garnepudi bss = &vif->bss_conf; 1355af756872SPrameela Rani Garnepudi break; 1356af756872SPrameela Rani Garnepudi } 1357eac4eed3SPrameela Rani Garnepudi } 1358eac4eed3SPrameela Rani Garnepudi if (!bss) 1359eac4eed3SPrameela Rani Garnepudi return; 1360686a2541SJahnavi Meher /* CQM only for connected AP beacons, the RSSI is a weighted avg */ 1361f276e20bSJohannes Berg if (vif->cfg.assoc && !(memcmp(bss->bssid, hdr->addr2, ETH_ALEN))) { 1362686a2541SJahnavi Meher if (ieee80211_is_beacon(hdr->frame_control)) 1363af756872SPrameela Rani Garnepudi rsi_perform_cqm(common, hdr->addr2, rxs->signal, vif); 1364686a2541SJahnavi Meher } 1365686a2541SJahnavi Meher 1366686a2541SJahnavi Meher return; 1367dad0d04fSFariya Fatima } 1368dad0d04fSFariya Fatima 1369dad0d04fSFariya Fatima /** 1370b9c767fdSSiva Rebbagondla * rsi_indicate_pkt_to_os() - This function sends received packet to mac80211. 1371dad0d04fSFariya Fatima * @common: Pointer to the driver private structure. 1372dad0d04fSFariya Fatima * @skb: Pointer to the socket buffer structure. 1373dad0d04fSFariya Fatima * 1374dad0d04fSFariya Fatima * Return: None. 1375dad0d04fSFariya Fatima */ 1376dad0d04fSFariya Fatima void rsi_indicate_pkt_to_os(struct rsi_common *common, 1377dad0d04fSFariya Fatima struct sk_buff *skb) 1378dad0d04fSFariya Fatima { 1379dad0d04fSFariya Fatima struct rsi_hw *adapter = common->priv; 1380dad0d04fSFariya Fatima struct ieee80211_hw *hw = adapter->hw; 1381dad0d04fSFariya Fatima struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb); 1382dad0d04fSFariya Fatima 1383dad0d04fSFariya Fatima if ((common->iface_down) || (!adapter->sc_nvifs)) { 1384dad0d04fSFariya Fatima dev_kfree_skb(skb); 1385dad0d04fSFariya Fatima return; 1386dad0d04fSFariya Fatima } 1387dad0d04fSFariya Fatima 1388dad0d04fSFariya Fatima /* filling in the ieee80211_rx_status flags */ 1389dad0d04fSFariya Fatima rsi_fill_rx_status(hw, skb, common, rx_status); 1390dad0d04fSFariya Fatima 1391dad0d04fSFariya Fatima ieee80211_rx_irqsafe(hw, skb); 1392dad0d04fSFariya Fatima } 1393dad0d04fSFariya Fatima 1394dad0d04fSFariya Fatima /** 1395dad0d04fSFariya Fatima * rsi_mac80211_sta_add() - This function notifies driver about a peer getting 1396dad0d04fSFariya Fatima * connected. 1397dad0d04fSFariya Fatima * @hw: pointer to the ieee80211_hw structure. 1398dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 1399dad0d04fSFariya Fatima * @sta: Pointer to the ieee80211_sta structure. 1400dad0d04fSFariya Fatima * 1401fc438672SDan Carpenter * Return: 0 on success, negative error codes on failure. 1402dad0d04fSFariya Fatima */ 1403dad0d04fSFariya Fatima static int rsi_mac80211_sta_add(struct ieee80211_hw *hw, 1404dad0d04fSFariya Fatima struct ieee80211_vif *vif, 1405dad0d04fSFariya Fatima struct ieee80211_sta *sta) 1406dad0d04fSFariya Fatima { 1407dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 1408dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 14093528608fSPrameela Rani Garnepudi bool sta_exist = false; 14103528608fSPrameela Rani Garnepudi struct rsi_sta *rsta; 14110270639eSDan Carpenter int status = 0; 14123528608fSPrameela Rani Garnepudi 14133528608fSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Station Add: %pM\n", sta->addr); 1414dad0d04fSFariya Fatima 1415dad0d04fSFariya Fatima mutex_lock(&common->mutex); 1416dad0d04fSFariya Fatima 14174671c209SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_AP) || 14184671c209SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) { 14193528608fSPrameela Rani Garnepudi u8 cnt; 14203528608fSPrameela Rani Garnepudi int sta_idx = -1; 14213528608fSPrameela Rani Garnepudi int free_index = -1; 1422dad0d04fSFariya Fatima 14233528608fSPrameela Rani Garnepudi /* Check if max stations reached */ 14243528608fSPrameela Rani Garnepudi if (common->num_stations >= common->max_stations) { 14253528608fSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "Reject: Max Stations exists\n"); 14260270639eSDan Carpenter status = -EOPNOTSUPP; 14270270639eSDan Carpenter goto unlock; 14283528608fSPrameela Rani Garnepudi } 14293528608fSPrameela Rani Garnepudi for (cnt = 0; cnt < common->max_stations; cnt++) { 14303528608fSPrameela Rani Garnepudi rsta = &common->stations[cnt]; 14313528608fSPrameela Rani Garnepudi 14323528608fSPrameela Rani Garnepudi if (!rsta->sta) { 14333528608fSPrameela Rani Garnepudi if (free_index < 0) 14343528608fSPrameela Rani Garnepudi free_index = cnt; 14353528608fSPrameela Rani Garnepudi continue; 14363528608fSPrameela Rani Garnepudi } 14373528608fSPrameela Rani Garnepudi if (!memcmp(rsta->sta->addr, sta->addr, ETH_ALEN)) { 14383528608fSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Station exists\n"); 14393528608fSPrameela Rani Garnepudi sta_idx = cnt; 14403528608fSPrameela Rani Garnepudi sta_exist = true; 14413528608fSPrameela Rani Garnepudi break; 14423528608fSPrameela Rani Garnepudi } 14433528608fSPrameela Rani Garnepudi } 14443528608fSPrameela Rani Garnepudi if (!sta_exist) { 14453528608fSPrameela Rani Garnepudi if (free_index >= 0) 14463528608fSPrameela Rani Garnepudi sta_idx = free_index; 14473528608fSPrameela Rani Garnepudi } 14483528608fSPrameela Rani Garnepudi if (sta_idx < 0) { 14493528608fSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, 14503528608fSPrameela Rani Garnepudi "%s: Some problem reaching here...\n", 14513528608fSPrameela Rani Garnepudi __func__); 14520270639eSDan Carpenter status = -EINVAL; 14530270639eSDan Carpenter goto unlock; 14543528608fSPrameela Rani Garnepudi } 14553528608fSPrameela Rani Garnepudi rsta = &common->stations[sta_idx]; 14563528608fSPrameela Rani Garnepudi rsta->sta = sta; 14573528608fSPrameela Rani Garnepudi rsta->sta_id = sta_idx; 14583528608fSPrameela Rani Garnepudi for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++) 14593528608fSPrameela Rani Garnepudi rsta->start_tx_aggr[cnt] = false; 14603528608fSPrameela Rani Garnepudi for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++) 14613528608fSPrameela Rani Garnepudi rsta->seq_start[cnt] = 0; 14623528608fSPrameela Rani Garnepudi if (!sta_exist) { 14633528608fSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "New Station\n"); 14643528608fSPrameela Rani Garnepudi 14653528608fSPrameela Rani Garnepudi /* Send peer notify to device */ 14663528608fSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Indicate bss status to device\n"); 1467b8bd3a43SPrameela Rani Garnepudi rsi_inform_bss_status(common, RSI_OPMODE_AP, 1, 1468b8bd3a43SPrameela Rani Garnepudi sta->addr, sta->wme, sta->aid, 14694fd6c476SPrameela Rani Garnepudi sta, sta_idx, 0, vif); 14703528608fSPrameela Rani Garnepudi 147138ef6235SPrameela Rani Garnepudi if (common->key) { 147238ef6235SPrameela Rani Garnepudi struct ieee80211_key_conf *key = common->key; 147338ef6235SPrameela Rani Garnepudi 147438ef6235SPrameela Rani Garnepudi if ((key->cipher == WLAN_CIPHER_SUITE_WEP104) || 147538ef6235SPrameela Rani Garnepudi (key->cipher == WLAN_CIPHER_SUITE_WEP40)) 147638ef6235SPrameela Rani Garnepudi rsi_hal_load_key(adapter->priv, 147738ef6235SPrameela Rani Garnepudi key->key, 147838ef6235SPrameela Rani Garnepudi key->keylen, 147938ef6235SPrameela Rani Garnepudi RSI_PAIRWISE_KEY, 148038ef6235SPrameela Rani Garnepudi key->keyidx, 148138ef6235SPrameela Rani Garnepudi key->cipher, 1482eac4eed3SPrameela Rani Garnepudi sta_idx, 1483eac4eed3SPrameela Rani Garnepudi vif); 148438ef6235SPrameela Rani Garnepudi } 148538ef6235SPrameela Rani Garnepudi 14863528608fSPrameela Rani Garnepudi common->num_stations++; 14873528608fSPrameela Rani Garnepudi } 1488dad0d04fSFariya Fatima } 1489dad0d04fSFariya Fatima 14904671c209SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_STATION) || 14914671c209SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_CLIENT)) { 1492046d2e7cSSriram R common->bitrate_mask[common->band] = sta->deflink.supp_rates[common->band]; 1493046d2e7cSSriram R common->vif_info[0].is_ht = sta->deflink.ht_cap.ht_supported; 1494046d2e7cSSriram R if (sta->deflink.ht_cap.ht_supported) { 14953528608fSPrameela Rani Garnepudi common->bitrate_mask[NL80211_BAND_2GHZ] = 1496046d2e7cSSriram R sta->deflink.supp_rates[NL80211_BAND_2GHZ]; 1497046d2e7cSSriram R if ((sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_20) || 1498046d2e7cSSriram R (sta->deflink.ht_cap.cap & IEEE80211_HT_CAP_SGI_40)) 14993528608fSPrameela Rani Garnepudi common->vif_info[0].sgi = true; 1500dad0d04fSFariya Fatima ieee80211_start_tx_ba_session(sta, 0, 0); 15013528608fSPrameela Rani Garnepudi } 15023528608fSPrameela Rani Garnepudi } 1503dad0d04fSFariya Fatima 15040270639eSDan Carpenter unlock: 1505dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 1506dad0d04fSFariya Fatima 15070270639eSDan Carpenter return status; 1508dad0d04fSFariya Fatima } 1509dad0d04fSFariya Fatima 1510dad0d04fSFariya Fatima /** 1511dad0d04fSFariya Fatima * rsi_mac80211_sta_remove() - This function notifies driver about a peer 1512dad0d04fSFariya Fatima * getting disconnected. 1513dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 1514dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 1515dad0d04fSFariya Fatima * @sta: Pointer to the ieee80211_sta structure. 1516dad0d04fSFariya Fatima * 1517fc438672SDan Carpenter * Return: 0 on success, negative error codes on failure. 1518dad0d04fSFariya Fatima */ 1519dad0d04fSFariya Fatima static int rsi_mac80211_sta_remove(struct ieee80211_hw *hw, 1520dad0d04fSFariya Fatima struct ieee80211_vif *vif, 1521dad0d04fSFariya Fatima struct ieee80211_sta *sta) 1522dad0d04fSFariya Fatima { 1523dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 1524dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 1525571b050bSPrameela Rani Garnepudi struct ieee80211_bss_conf *bss = &vif->bss_conf; 1526571b050bSPrameela Rani Garnepudi struct rsi_sta *rsta; 1527571b050bSPrameela Rani Garnepudi 1528571b050bSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Station Remove: %pM\n", sta->addr); 1529dad0d04fSFariya Fatima 1530dad0d04fSFariya Fatima mutex_lock(&common->mutex); 1531e6d64284SPrameela Rani Garnepudi 15324671c209SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_AP) || 15334671c209SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) { 1534571b050bSPrameela Rani Garnepudi u8 sta_idx, cnt; 1535571b050bSPrameela Rani Garnepudi 1536571b050bSPrameela Rani Garnepudi /* Send peer notify to device */ 1537571b050bSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Indicate bss status to device\n"); 1538571b050bSPrameela Rani Garnepudi for (sta_idx = 0; sta_idx < common->max_stations; sta_idx++) { 1539571b050bSPrameela Rani Garnepudi rsta = &common->stations[sta_idx]; 1540571b050bSPrameela Rani Garnepudi 1541571b050bSPrameela Rani Garnepudi if (!rsta->sta) 1542571b050bSPrameela Rani Garnepudi continue; 1543571b050bSPrameela Rani Garnepudi if (!memcmp(rsta->sta->addr, sta->addr, ETH_ALEN)) { 1544b8bd3a43SPrameela Rani Garnepudi rsi_inform_bss_status(common, RSI_OPMODE_AP, 0, 1545571b050bSPrameela Rani Garnepudi sta->addr, sta->wme, 15464671c209SPrameela Rani Garnepudi sta->aid, sta, sta_idx, 15474fd6c476SPrameela Rani Garnepudi 0, vif); 1548571b050bSPrameela Rani Garnepudi rsta->sta = NULL; 1549571b050bSPrameela Rani Garnepudi rsta->sta_id = -1; 1550571b050bSPrameela Rani Garnepudi for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++) 1551571b050bSPrameela Rani Garnepudi rsta->start_tx_aggr[cnt] = false; 1552571b050bSPrameela Rani Garnepudi if (common->num_stations > 0) 1553571b050bSPrameela Rani Garnepudi common->num_stations--; 1554571b050bSPrameela Rani Garnepudi break; 1555571b050bSPrameela Rani Garnepudi } 1556571b050bSPrameela Rani Garnepudi } 1557571b050bSPrameela Rani Garnepudi if (sta_idx >= common->max_stations) 1558571b050bSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "%s: No station found\n", __func__); 1559571b050bSPrameela Rani Garnepudi } 1560571b050bSPrameela Rani Garnepudi 15614671c209SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_STATION) || 15624671c209SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_CLIENT)) { 1563dad0d04fSFariya Fatima /* Resetting all the fields to default values */ 1564571b050bSPrameela Rani Garnepudi memcpy((u8 *)bss->bssid, (u8 *)sta->addr, ETH_ALEN); 1565571b050bSPrameela Rani Garnepudi bss->qos = sta->wme; 156657fbcce3SJohannes Berg common->bitrate_mask[NL80211_BAND_2GHZ] = 0; 156757fbcce3SJohannes Berg common->bitrate_mask[NL80211_BAND_5GHZ] = 0; 1568dad0d04fSFariya Fatima common->vif_info[0].is_ht = false; 1569dad0d04fSFariya Fatima common->vif_info[0].sgi = false; 1570dad0d04fSFariya Fatima common->vif_info[0].seq_start = 0; 1571dad0d04fSFariya Fatima common->secinfo.ptk_cipher = 0; 1572dad0d04fSFariya Fatima common->secinfo.gtk_cipher = 0; 1573571b050bSPrameela Rani Garnepudi if (!common->iface_down) 1574e6d64284SPrameela Rani Garnepudi rsi_send_rx_filter_frame(common, 0); 1575571b050bSPrameela Rani Garnepudi } 1576dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 1577dad0d04fSFariya Fatima 1578dad0d04fSFariya Fatima return 0; 1579dad0d04fSFariya Fatima } 1580dad0d04fSFariya Fatima 15814edbcd1aSPrameela Rani Garnepudi /** 15824edbcd1aSPrameela Rani Garnepudi * rsi_mac80211_set_antenna() - This function is used to configure 15834edbcd1aSPrameela Rani Garnepudi * tx and rx antennas. 15844edbcd1aSPrameela Rani Garnepudi * @hw: Pointer to the ieee80211_hw structure. 15854edbcd1aSPrameela Rani Garnepudi * @tx_ant: Bitmap for tx antenna 15864edbcd1aSPrameela Rani Garnepudi * @rx_ant: Bitmap for rx antenna 15874edbcd1aSPrameela Rani Garnepudi * 15884edbcd1aSPrameela Rani Garnepudi * Return: 0 on success, Negative error code on failure. 15894edbcd1aSPrameela Rani Garnepudi */ 15904edbcd1aSPrameela Rani Garnepudi static int rsi_mac80211_set_antenna(struct ieee80211_hw *hw, 15914edbcd1aSPrameela Rani Garnepudi u32 tx_ant, u32 rx_ant) 15924edbcd1aSPrameela Rani Garnepudi { 15934edbcd1aSPrameela Rani Garnepudi struct rsi_hw *adapter = hw->priv; 15944edbcd1aSPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 15954edbcd1aSPrameela Rani Garnepudi u8 antenna = 0; 15964edbcd1aSPrameela Rani Garnepudi 15974edbcd1aSPrameela Rani Garnepudi if (tx_ant > 1 || rx_ant > 1) { 15984edbcd1aSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, 15994edbcd1aSPrameela Rani Garnepudi "Invalid antenna selection (tx: %d, rx:%d)\n", 16004edbcd1aSPrameela Rani Garnepudi tx_ant, rx_ant); 16014edbcd1aSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, 16024edbcd1aSPrameela Rani Garnepudi "Use 0 for int_ant, 1 for ext_ant\n"); 16034edbcd1aSPrameela Rani Garnepudi return -EINVAL; 16044edbcd1aSPrameela Rani Garnepudi } 16054edbcd1aSPrameela Rani Garnepudi 16064edbcd1aSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "%s: Antenna map Tx %x Rx %d\n", 16074edbcd1aSPrameela Rani Garnepudi __func__, tx_ant, rx_ant); 16084edbcd1aSPrameela Rani Garnepudi 16094edbcd1aSPrameela Rani Garnepudi mutex_lock(&common->mutex); 16104edbcd1aSPrameela Rani Garnepudi 16114edbcd1aSPrameela Rani Garnepudi antenna = tx_ant ? ANTENNA_SEL_UFL : ANTENNA_SEL_INT; 16124edbcd1aSPrameela Rani Garnepudi if (common->ant_in_use != antenna) 16134edbcd1aSPrameela Rani Garnepudi if (rsi_set_antenna(common, antenna)) 16144edbcd1aSPrameela Rani Garnepudi goto fail_set_antenna; 16154edbcd1aSPrameela Rani Garnepudi 16164edbcd1aSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "(%s) Antenna path configured successfully\n", 16174edbcd1aSPrameela Rani Garnepudi tx_ant ? "UFL" : "INT"); 16184edbcd1aSPrameela Rani Garnepudi 16194edbcd1aSPrameela Rani Garnepudi common->ant_in_use = antenna; 16204edbcd1aSPrameela Rani Garnepudi 16214edbcd1aSPrameela Rani Garnepudi mutex_unlock(&common->mutex); 16224edbcd1aSPrameela Rani Garnepudi 16234edbcd1aSPrameela Rani Garnepudi return 0; 16244edbcd1aSPrameela Rani Garnepudi 16254edbcd1aSPrameela Rani Garnepudi fail_set_antenna: 16264edbcd1aSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "%s: Failed.\n", __func__); 16274edbcd1aSPrameela Rani Garnepudi mutex_unlock(&common->mutex); 16284edbcd1aSPrameela Rani Garnepudi return -EINVAL; 16294edbcd1aSPrameela Rani Garnepudi } 16304edbcd1aSPrameela Rani Garnepudi 16314edbcd1aSPrameela Rani Garnepudi /** 16324edbcd1aSPrameela Rani Garnepudi * rsi_mac80211_get_antenna() - This function is used to configure 16334edbcd1aSPrameela Rani Garnepudi * tx and rx antennas. 16344edbcd1aSPrameela Rani Garnepudi * 16354edbcd1aSPrameela Rani Garnepudi * @hw: Pointer to the ieee80211_hw structure. 16364edbcd1aSPrameela Rani Garnepudi * @tx_ant: Bitmap for tx antenna 16374edbcd1aSPrameela Rani Garnepudi * @rx_ant: Bitmap for rx antenna 16384edbcd1aSPrameela Rani Garnepudi * 1639fc438672SDan Carpenter * Return: 0 on success, negative error codes on failure. 16404edbcd1aSPrameela Rani Garnepudi */ 16414edbcd1aSPrameela Rani Garnepudi static int rsi_mac80211_get_antenna(struct ieee80211_hw *hw, 16424edbcd1aSPrameela Rani Garnepudi u32 *tx_ant, u32 *rx_ant) 16434edbcd1aSPrameela Rani Garnepudi { 16444edbcd1aSPrameela Rani Garnepudi struct rsi_hw *adapter = hw->priv; 16454edbcd1aSPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 16464edbcd1aSPrameela Rani Garnepudi 16474edbcd1aSPrameela Rani Garnepudi mutex_lock(&common->mutex); 16484edbcd1aSPrameela Rani Garnepudi 16494edbcd1aSPrameela Rani Garnepudi *tx_ant = (common->ant_in_use == ANTENNA_SEL_UFL) ? 1 : 0; 16504edbcd1aSPrameela Rani Garnepudi *rx_ant = 0; 16514edbcd1aSPrameela Rani Garnepudi 16524edbcd1aSPrameela Rani Garnepudi mutex_unlock(&common->mutex); 16534edbcd1aSPrameela Rani Garnepudi 16544edbcd1aSPrameela Rani Garnepudi return 0; 16554edbcd1aSPrameela Rani Garnepudi } 16564edbcd1aSPrameela Rani Garnepudi 1657d7203a83SPrameela Rani Garnepudi static int rsi_map_region_code(enum nl80211_dfs_regions region_code) 1658d7203a83SPrameela Rani Garnepudi { 1659d7203a83SPrameela Rani Garnepudi switch (region_code) { 1660d7203a83SPrameela Rani Garnepudi case NL80211_DFS_FCC: 1661d7203a83SPrameela Rani Garnepudi return RSI_REGION_FCC; 1662d7203a83SPrameela Rani Garnepudi case NL80211_DFS_ETSI: 1663d7203a83SPrameela Rani Garnepudi return RSI_REGION_ETSI; 1664d7203a83SPrameela Rani Garnepudi case NL80211_DFS_JP: 1665d7203a83SPrameela Rani Garnepudi return RSI_REGION_TELEC; 1666d7203a83SPrameela Rani Garnepudi case NL80211_DFS_UNSET: 1667d7203a83SPrameela Rani Garnepudi return RSI_REGION_WORLD; 1668d7203a83SPrameela Rani Garnepudi } 1669d7203a83SPrameela Rani Garnepudi return RSI_REGION_WORLD; 1670d7203a83SPrameela Rani Garnepudi } 1671d7203a83SPrameela Rani Garnepudi 167261d10842SPrameela Rani Garnepudi static void rsi_reg_notify(struct wiphy *wiphy, 167361d10842SPrameela Rani Garnepudi struct regulatory_request *request) 167461d10842SPrameela Rani Garnepudi { 167561d10842SPrameela Rani Garnepudi struct ieee80211_supported_band *sband; 167661d10842SPrameela Rani Garnepudi struct ieee80211_channel *ch; 167761d10842SPrameela Rani Garnepudi struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 167861d10842SPrameela Rani Garnepudi struct rsi_hw * adapter = hw->priv; 1679d7203a83SPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 168061d10842SPrameela Rani Garnepudi int i; 168161d10842SPrameela Rani Garnepudi 1682d7203a83SPrameela Rani Garnepudi mutex_lock(&common->mutex); 1683d7203a83SPrameela Rani Garnepudi 1684d7203a83SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "country = %s dfs_region = %d\n", 1685d7203a83SPrameela Rani Garnepudi request->alpha2, request->dfs_region); 1686d7203a83SPrameela Rani Garnepudi 1687d7203a83SPrameela Rani Garnepudi if (common->num_supp_bands > 1) { 168861d10842SPrameela Rani Garnepudi sband = wiphy->bands[NL80211_BAND_5GHZ]; 168961d10842SPrameela Rani Garnepudi 169061d10842SPrameela Rani Garnepudi for (i = 0; i < sband->n_channels; i++) { 169161d10842SPrameela Rani Garnepudi ch = &sband->channels[i]; 169261d10842SPrameela Rani Garnepudi if (ch->flags & IEEE80211_CHAN_DISABLED) 169361d10842SPrameela Rani Garnepudi continue; 169461d10842SPrameela Rani Garnepudi 169561d10842SPrameela Rani Garnepudi if (ch->flags & IEEE80211_CHAN_RADAR) 169661d10842SPrameela Rani Garnepudi ch->flags |= IEEE80211_CHAN_NO_IR; 169761d10842SPrameela Rani Garnepudi } 1698d7203a83SPrameela Rani Garnepudi } 1699d7203a83SPrameela Rani Garnepudi adapter->dfs_region = rsi_map_region_code(request->dfs_region); 1700d7203a83SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "RSI region code = %d\n", adapter->dfs_region); 170161d10842SPrameela Rani Garnepudi 1702d7203a83SPrameela Rani Garnepudi adapter->country[0] = request->alpha2[0]; 1703d7203a83SPrameela Rani Garnepudi adapter->country[1] = request->alpha2[1]; 1704d7203a83SPrameela Rani Garnepudi 1705d7203a83SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 170661d10842SPrameela Rani Garnepudi } 170761d10842SPrameela Rani Garnepudi 1708edba3532SPavani Muthyala static void rsi_mac80211_rfkill_poll(struct ieee80211_hw *hw) 1709edba3532SPavani Muthyala { 1710edba3532SPavani Muthyala struct rsi_hw *adapter = hw->priv; 1711edba3532SPavani Muthyala struct rsi_common *common = adapter->priv; 1712edba3532SPavani Muthyala 1713edba3532SPavani Muthyala mutex_lock(&common->mutex); 1714edba3532SPavani Muthyala if (common->fsm_state != FSM_MAC_INIT_DONE) 1715edba3532SPavani Muthyala wiphy_rfkill_set_hw_state(hw->wiphy, true); 1716edba3532SPavani Muthyala else 1717edba3532SPavani Muthyala wiphy_rfkill_set_hw_state(hw->wiphy, false); 1718edba3532SPavani Muthyala mutex_unlock(&common->mutex); 1719edba3532SPavani Muthyala } 1720edba3532SPavani Muthyala 1721df771911SPrameela Rani Garnepudi static void rsi_resume_conn_channel(struct rsi_common *common) 1722df771911SPrameela Rani Garnepudi { 1723df771911SPrameela Rani Garnepudi struct rsi_hw *adapter = common->priv; 1724df771911SPrameela Rani Garnepudi struct ieee80211_vif *vif; 1725df771911SPrameela Rani Garnepudi int cnt; 1726df771911SPrameela Rani Garnepudi 1727df771911SPrameela Rani Garnepudi for (cnt = 0; cnt < RSI_MAX_VIFS; cnt++) { 1728df771911SPrameela Rani Garnepudi vif = adapter->vifs[cnt]; 1729df771911SPrameela Rani Garnepudi if (!vif) 1730df771911SPrameela Rani Garnepudi continue; 1731df771911SPrameela Rani Garnepudi 1732df771911SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_AP) || 1733df771911SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) { 1734df771911SPrameela Rani Garnepudi rsi_switch_channel(adapter, vif); 1735df771911SPrameela Rani Garnepudi break; 1736df771911SPrameela Rani Garnepudi } 1737df771911SPrameela Rani Garnepudi if (((vif->type == NL80211_IFTYPE_STATION) || 1738df771911SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_CLIENT)) && 1739f276e20bSJohannes Berg vif->cfg.assoc) { 1740df771911SPrameela Rani Garnepudi rsi_switch_channel(adapter, vif); 1741df771911SPrameela Rani Garnepudi break; 1742df771911SPrameela Rani Garnepudi } 1743df771911SPrameela Rani Garnepudi } 1744df771911SPrameela Rani Garnepudi } 1745df771911SPrameela Rani Garnepudi 1746dfefb9f8SKees Cook void rsi_roc_timeout(struct timer_list *t) 1747df771911SPrameela Rani Garnepudi { 1748dfefb9f8SKees Cook struct rsi_common *common = from_timer(common, t, roc_timer); 1749df771911SPrameela Rani Garnepudi 1750df771911SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Remain on channel expired\n"); 1751df771911SPrameela Rani Garnepudi 1752df771911SPrameela Rani Garnepudi mutex_lock(&common->mutex); 1753df771911SPrameela Rani Garnepudi ieee80211_remain_on_channel_expired(common->priv->hw); 1754df771911SPrameela Rani Garnepudi 1755df771911SPrameela Rani Garnepudi if (timer_pending(&common->roc_timer)) 1756df771911SPrameela Rani Garnepudi del_timer(&common->roc_timer); 1757df771911SPrameela Rani Garnepudi 1758df771911SPrameela Rani Garnepudi rsi_resume_conn_channel(common); 1759df771911SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 1760df771911SPrameela Rani Garnepudi } 1761df771911SPrameela Rani Garnepudi 1762df771911SPrameela Rani Garnepudi static int rsi_mac80211_roc(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1763df771911SPrameela Rani Garnepudi struct ieee80211_channel *chan, int duration, 1764df771911SPrameela Rani Garnepudi enum ieee80211_roc_type type) 1765df771911SPrameela Rani Garnepudi { 1766df771911SPrameela Rani Garnepudi struct rsi_hw *adapter = (struct rsi_hw *)hw->priv; 1767df771911SPrameela Rani Garnepudi struct rsi_common *common = (struct rsi_common *)adapter->priv; 1768df771911SPrameela Rani Garnepudi int status = 0; 1769df771911SPrameela Rani Garnepudi 1770df771911SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "***** Remain on channel *****\n"); 1771df771911SPrameela Rani Garnepudi 1772df771911SPrameela Rani Garnepudi mutex_lock(&common->mutex); 1773df771911SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "%s: channel: %d duration: %dms\n", 1774df771911SPrameela Rani Garnepudi __func__, chan->hw_value, duration); 1775df771911SPrameela Rani Garnepudi 1776df771911SPrameela Rani Garnepudi if (timer_pending(&common->roc_timer)) { 1777df771911SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Stop on-going ROC\n"); 1778df771911SPrameela Rani Garnepudi del_timer(&common->roc_timer); 1779df771911SPrameela Rani Garnepudi } 1780df771911SPrameela Rani Garnepudi common->roc_timer.expires = msecs_to_jiffies(duration) + jiffies; 1781df771911SPrameela Rani Garnepudi add_timer(&common->roc_timer); 1782df771911SPrameela Rani Garnepudi 1783df771911SPrameela Rani Garnepudi /* Configure band */ 1784df771911SPrameela Rani Garnepudi if (rsi_band_check(common, chan)) { 1785df771911SPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "Failed to set band\n"); 1786df771911SPrameela Rani Garnepudi status = -EINVAL; 1787df771911SPrameela Rani Garnepudi goto out; 1788df771911SPrameela Rani Garnepudi } 1789df771911SPrameela Rani Garnepudi 1790df771911SPrameela Rani Garnepudi /* Configure channel */ 1791df771911SPrameela Rani Garnepudi if (rsi_set_channel(common, chan)) { 1792df771911SPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "Failed to set the channel\n"); 1793df771911SPrameela Rani Garnepudi status = -EINVAL; 1794df771911SPrameela Rani Garnepudi goto out; 1795df771911SPrameela Rani Garnepudi } 1796df771911SPrameela Rani Garnepudi 1797df771911SPrameela Rani Garnepudi common->roc_vif = vif; 1798df771911SPrameela Rani Garnepudi ieee80211_ready_on_channel(hw); 1799df771911SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "%s: Ready on channel :%d\n", 1800df771911SPrameela Rani Garnepudi __func__, chan->hw_value); 1801df771911SPrameela Rani Garnepudi 1802df771911SPrameela Rani Garnepudi out: 1803df771911SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 1804df771911SPrameela Rani Garnepudi 1805df771911SPrameela Rani Garnepudi return status; 1806df771911SPrameela Rani Garnepudi } 1807df771911SPrameela Rani Garnepudi 18085db4c4b9SEmmanuel Grumbach static int rsi_mac80211_cancel_roc(struct ieee80211_hw *hw, 18095db4c4b9SEmmanuel Grumbach struct ieee80211_vif *vif) 1810df771911SPrameela Rani Garnepudi { 1811df771911SPrameela Rani Garnepudi struct rsi_hw *adapter = hw->priv; 1812df771911SPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 1813df771911SPrameela Rani Garnepudi 1814df771911SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Cancel remain on channel\n"); 1815df771911SPrameela Rani Garnepudi 1816df771911SPrameela Rani Garnepudi mutex_lock(&common->mutex); 1817df771911SPrameela Rani Garnepudi if (!timer_pending(&common->roc_timer)) { 1818df771911SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 1819df771911SPrameela Rani Garnepudi return 0; 1820df771911SPrameela Rani Garnepudi } 1821df771911SPrameela Rani Garnepudi 1822df771911SPrameela Rani Garnepudi del_timer(&common->roc_timer); 1823df771911SPrameela Rani Garnepudi 1824df771911SPrameela Rani Garnepudi rsi_resume_conn_channel(common); 1825df771911SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 1826df771911SPrameela Rani Garnepudi 1827df771911SPrameela Rani Garnepudi return 0; 1828df771911SPrameela Rani Garnepudi } 1829df771911SPrameela Rani Garnepudi 1830e6b3b2edSAmitkumar Karwar #ifdef CONFIG_PM 1831f3ac4e73SKarun Eagalapati static const struct wiphy_wowlan_support rsi_wowlan_support = { 1832f3ac4e73SKarun Eagalapati .flags = WIPHY_WOWLAN_ANY | 1833f3ac4e73SKarun Eagalapati WIPHY_WOWLAN_MAGIC_PKT | 1834f3ac4e73SKarun Eagalapati WIPHY_WOWLAN_DISCONNECT | 1835f3ac4e73SKarun Eagalapati WIPHY_WOWLAN_GTK_REKEY_FAILURE | 1836f3ac4e73SKarun Eagalapati WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 1837f3ac4e73SKarun Eagalapati WIPHY_WOWLAN_EAP_IDENTITY_REQ | 1838f3ac4e73SKarun Eagalapati WIPHY_WOWLAN_4WAY_HANDSHAKE, 1839f3ac4e73SKarun Eagalapati }; 1840f3ac4e73SKarun Eagalapati 1841f3ac4e73SKarun Eagalapati static u16 rsi_wow_map_triggers(struct rsi_common *common, 1842f3ac4e73SKarun Eagalapati struct cfg80211_wowlan *wowlan) 1843f3ac4e73SKarun Eagalapati { 1844f3ac4e73SKarun Eagalapati u16 wow_triggers = 0; 1845f3ac4e73SKarun Eagalapati 1846f3ac4e73SKarun Eagalapati rsi_dbg(INFO_ZONE, "Mapping wowlan triggers\n"); 1847f3ac4e73SKarun Eagalapati 1848f3ac4e73SKarun Eagalapati if (wowlan->any) 1849f3ac4e73SKarun Eagalapati wow_triggers |= RSI_WOW_ANY; 1850f3ac4e73SKarun Eagalapati if (wowlan->magic_pkt) 1851f3ac4e73SKarun Eagalapati wow_triggers |= RSI_WOW_MAGIC_PKT; 1852f3ac4e73SKarun Eagalapati if (wowlan->disconnect) 1853f3ac4e73SKarun Eagalapati wow_triggers |= RSI_WOW_DISCONNECT; 1854f3ac4e73SKarun Eagalapati if (wowlan->gtk_rekey_failure || wowlan->eap_identity_req || 1855f3ac4e73SKarun Eagalapati wowlan->four_way_handshake) 1856f3ac4e73SKarun Eagalapati wow_triggers |= RSI_WOW_GTK_REKEY; 1857f3ac4e73SKarun Eagalapati 1858f3ac4e73SKarun Eagalapati return wow_triggers; 1859f3ac4e73SKarun Eagalapati } 1860f3ac4e73SKarun Eagalapati 1861f3ac4e73SKarun Eagalapati int rsi_config_wowlan(struct rsi_hw *adapter, struct cfg80211_wowlan *wowlan) 1862f3ac4e73SKarun Eagalapati { 1863f3ac4e73SKarun Eagalapati struct rsi_common *common = adapter->priv; 1864f276e20bSJohannes Berg struct ieee80211_vif *vif = adapter->vifs[0]; 1865f3ac4e73SKarun Eagalapati u16 triggers = 0; 1866f3ac4e73SKarun Eagalapati u16 rx_filter_word = 0; 1867f3ac4e73SKarun Eagalapati 1868f3ac4e73SKarun Eagalapati rsi_dbg(INFO_ZONE, "Config WoWLAN to device\n"); 1869f3ac4e73SKarun Eagalapati 1870f276e20bSJohannes Berg if (!vif) 187154b51720SSanjay Kumar Konduri return -EINVAL; 187254b51720SSanjay Kumar Konduri 1873f3ac4e73SKarun Eagalapati if (WARN_ON(!wowlan)) { 1874f3ac4e73SKarun Eagalapati rsi_dbg(ERR_ZONE, "WoW triggers not enabled\n"); 1875f3ac4e73SKarun Eagalapati return -EINVAL; 1876f3ac4e73SKarun Eagalapati } 1877f3ac4e73SKarun Eagalapati 18781d18c558SSiva Rebbagondla common->wow_flags |= RSI_WOW_ENABLED; 1879f3ac4e73SKarun Eagalapati triggers = rsi_wow_map_triggers(common, wowlan); 1880f3ac4e73SKarun Eagalapati if (!triggers) { 1881f3ac4e73SKarun Eagalapati rsi_dbg(ERR_ZONE, "%s:No valid WoW triggers\n", __func__); 1882f3ac4e73SKarun Eagalapati return -EINVAL; 1883f3ac4e73SKarun Eagalapati } 1884f276e20bSJohannes Berg if (!vif->cfg.assoc) { 1885f3ac4e73SKarun Eagalapati rsi_dbg(ERR_ZONE, 1886f3ac4e73SKarun Eagalapati "Cannot configure WoWLAN (Station not connected)\n"); 1887f3ac4e73SKarun Eagalapati common->wow_flags |= RSI_WOW_NO_CONNECTION; 1888f3ac4e73SKarun Eagalapati return 0; 1889f3ac4e73SKarun Eagalapati } 1890f3ac4e73SKarun Eagalapati rsi_dbg(INFO_ZONE, "TRIGGERS %x\n", triggers); 189138ef8d90SSiva Rebbagondla 189238ef8d90SSiva Rebbagondla if (common->coex_mode > 1) 189338ef8d90SSiva Rebbagondla rsi_disable_ps(adapter, adapter->vifs[0]); 189438ef8d90SSiva Rebbagondla 1895f3ac4e73SKarun Eagalapati rsi_send_wowlan_request(common, triggers, 1); 1896f3ac4e73SKarun Eagalapati 1897f3ac4e73SKarun Eagalapati /** 1898f3ac4e73SKarun Eagalapati * Increase the beacon_miss threshold & keep-alive timers in 1899f3ac4e73SKarun Eagalapati * vap_update frame 1900f3ac4e73SKarun Eagalapati */ 1901f3ac4e73SKarun Eagalapati rsi_send_vap_dynamic_update(common); 1902f3ac4e73SKarun Eagalapati 1903f3ac4e73SKarun Eagalapati rx_filter_word = (ALLOW_DATA_ASSOC_PEER | DISALLOW_BEACONS); 1904f3ac4e73SKarun Eagalapati rsi_send_rx_filter_frame(common, rx_filter_word); 1905f3ac4e73SKarun Eagalapati 1906f3ac4e73SKarun Eagalapati return 0; 1907f3ac4e73SKarun Eagalapati } 1908063848c3SKarun Eagalapati EXPORT_SYMBOL(rsi_config_wowlan); 1909f3ac4e73SKarun Eagalapati 1910f3ac4e73SKarun Eagalapati static int rsi_mac80211_suspend(struct ieee80211_hw *hw, 1911f3ac4e73SKarun Eagalapati struct cfg80211_wowlan *wowlan) 1912f3ac4e73SKarun Eagalapati { 1913f3ac4e73SKarun Eagalapati struct rsi_hw *adapter = hw->priv; 1914f3ac4e73SKarun Eagalapati struct rsi_common *common = adapter->priv; 1915f3ac4e73SKarun Eagalapati 1916f3ac4e73SKarun Eagalapati rsi_dbg(INFO_ZONE, "%s: mac80211 suspend\n", __func__); 1917f3ac4e73SKarun Eagalapati mutex_lock(&common->mutex); 1918f3ac4e73SKarun Eagalapati if (rsi_config_wowlan(adapter, wowlan)) { 1919f3ac4e73SKarun Eagalapati rsi_dbg(ERR_ZONE, "Failed to configure WoWLAN\n"); 1920f3ac4e73SKarun Eagalapati mutex_unlock(&common->mutex); 1921f3ac4e73SKarun Eagalapati return 1; 1922f3ac4e73SKarun Eagalapati } 1923f3ac4e73SKarun Eagalapati mutex_unlock(&common->mutex); 1924f3ac4e73SKarun Eagalapati 1925f3ac4e73SKarun Eagalapati return 0; 1926f3ac4e73SKarun Eagalapati } 1927f3ac4e73SKarun Eagalapati 1928f3ac4e73SKarun Eagalapati static int rsi_mac80211_resume(struct ieee80211_hw *hw) 1929f3ac4e73SKarun Eagalapati { 1930f3ac4e73SKarun Eagalapati u16 rx_filter_word = 0; 1931f3ac4e73SKarun Eagalapati struct rsi_hw *adapter = hw->priv; 1932f3ac4e73SKarun Eagalapati struct rsi_common *common = adapter->priv; 1933f3ac4e73SKarun Eagalapati 1934f3ac4e73SKarun Eagalapati common->wow_flags = 0; 1935f3ac4e73SKarun Eagalapati 1936f3ac4e73SKarun Eagalapati rsi_dbg(INFO_ZONE, "%s: mac80211 resume\n", __func__); 1937f3ac4e73SKarun Eagalapati 1938a63762d0SSiva Rebbagondla if (common->hibernate_resume) { 193973f9b257SSiva Rebbagondla common->mac_ops_resumed = true; 1940a63762d0SSiva Rebbagondla /* Device need a complete restart of all MAC operations. 1941a63762d0SSiva Rebbagondla * returning 1 will serve this purpose. 1942a63762d0SSiva Rebbagondla */ 1943a63762d0SSiva Rebbagondla return 1; 1944a63762d0SSiva Rebbagondla } 1945b6c8d06cSKarun Eagalapati 1946f3ac4e73SKarun Eagalapati mutex_lock(&common->mutex); 1947f3ac4e73SKarun Eagalapati rsi_send_wowlan_request(common, 0, 0); 1948f3ac4e73SKarun Eagalapati 1949f3ac4e73SKarun Eagalapati rx_filter_word = (ALLOW_DATA_ASSOC_PEER | ALLOW_CTRL_ASSOC_PEER | 1950f3ac4e73SKarun Eagalapati ALLOW_MGMT_ASSOC_PEER); 1951f3ac4e73SKarun Eagalapati rsi_send_rx_filter_frame(common, rx_filter_word); 1952f3ac4e73SKarun Eagalapati mutex_unlock(&common->mutex); 1953f3ac4e73SKarun Eagalapati 1954f3ac4e73SKarun Eagalapati return 0; 1955f3ac4e73SKarun Eagalapati } 1956f3ac4e73SKarun Eagalapati 1957f3ac4e73SKarun Eagalapati #endif 1958f3ac4e73SKarun Eagalapati 19599ea792a4SArvind Yadav static const struct ieee80211_ops mac80211_ops = { 1960dad0d04fSFariya Fatima .tx = rsi_mac80211_tx, 1961dad0d04fSFariya Fatima .start = rsi_mac80211_start, 1962dad0d04fSFariya Fatima .stop = rsi_mac80211_stop, 1963dad0d04fSFariya Fatima .add_interface = rsi_mac80211_add_interface, 1964dad0d04fSFariya Fatima .remove_interface = rsi_mac80211_remove_interface, 1965dad0d04fSFariya Fatima .config = rsi_mac80211_config, 1966dad0d04fSFariya Fatima .bss_info_changed = rsi_mac80211_bss_info_changed, 1967dad0d04fSFariya Fatima .conf_tx = rsi_mac80211_conf_tx, 1968dad0d04fSFariya Fatima .configure_filter = rsi_mac80211_conf_filter, 1969dad0d04fSFariya Fatima .set_key = rsi_mac80211_set_key, 1970dad0d04fSFariya Fatima .set_rts_threshold = rsi_mac80211_set_rts_threshold, 1971dad0d04fSFariya Fatima .set_bitrate_mask = rsi_mac80211_set_rate_mask, 1972dad0d04fSFariya Fatima .ampdu_action = rsi_mac80211_ampdu_action, 1973dad0d04fSFariya Fatima .sta_add = rsi_mac80211_sta_add, 1974dad0d04fSFariya Fatima .sta_remove = rsi_mac80211_sta_remove, 19754edbcd1aSPrameela Rani Garnepudi .set_antenna = rsi_mac80211_set_antenna, 19764edbcd1aSPrameela Rani Garnepudi .get_antenna = rsi_mac80211_get_antenna, 1977edba3532SPavani Muthyala .rfkill_poll = rsi_mac80211_rfkill_poll, 1978df771911SPrameela Rani Garnepudi .remain_on_channel = rsi_mac80211_roc, 1979df771911SPrameela Rani Garnepudi .cancel_remain_on_channel = rsi_mac80211_cancel_roc, 1980f3ac4e73SKarun Eagalapati #ifdef CONFIG_PM 1981f3ac4e73SKarun Eagalapati .suspend = rsi_mac80211_suspend, 1982f3ac4e73SKarun Eagalapati .resume = rsi_mac80211_resume, 1983f3ac4e73SKarun Eagalapati #endif 19847fdcb8e1SPrameela Rani Garnepudi .hw_scan = rsi_mac80211_hw_scan_start, 19857fdcb8e1SPrameela Rani Garnepudi .cancel_hw_scan = rsi_mac80211_cancel_hw_scan, 1986dad0d04fSFariya Fatima }; 1987dad0d04fSFariya Fatima 1988dad0d04fSFariya Fatima /** 1989dad0d04fSFariya Fatima * rsi_mac80211_attach() - This function is used to initialize Mac80211 stack. 1990dad0d04fSFariya Fatima * @common: Pointer to the driver private structure. 1991dad0d04fSFariya Fatima * 1992fc438672SDan Carpenter * Return: 0 on success, negative error codes on failure. 1993dad0d04fSFariya Fatima */ 1994dad0d04fSFariya Fatima int rsi_mac80211_attach(struct rsi_common *common) 1995dad0d04fSFariya Fatima { 1996dad0d04fSFariya Fatima int status = 0; 1997dad0d04fSFariya Fatima struct ieee80211_hw *hw = NULL; 1998dad0d04fSFariya Fatima struct wiphy *wiphy = NULL; 1999dad0d04fSFariya Fatima struct rsi_hw *adapter = common->priv; 2000dad0d04fSFariya Fatima u8 addr_mask[ETH_ALEN] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x3}; 2001dad0d04fSFariya Fatima 2002dad0d04fSFariya Fatima rsi_dbg(INIT_ZONE, "%s: Performing mac80211 attach\n", __func__); 2003dad0d04fSFariya Fatima 2004dad0d04fSFariya Fatima hw = ieee80211_alloc_hw(sizeof(struct rsi_hw), &mac80211_ops); 2005dad0d04fSFariya Fatima if (!hw) { 2006dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: ieee80211 hw alloc failed\n", __func__); 2007dad0d04fSFariya Fatima return -ENOMEM; 2008dad0d04fSFariya Fatima } 2009dad0d04fSFariya Fatima 2010dad0d04fSFariya Fatima wiphy = hw->wiphy; 2011dad0d04fSFariya Fatima 2012dad0d04fSFariya Fatima SET_IEEE80211_DEV(hw, adapter->device); 2013dad0d04fSFariya Fatima 2014dad0d04fSFariya Fatima hw->priv = adapter; 2015dad0d04fSFariya Fatima adapter->hw = hw; 2016dad0d04fSFariya Fatima 201730686bf7SJohannes Berg ieee80211_hw_set(hw, SIGNAL_DBM); 201830686bf7SJohannes Berg ieee80211_hw_set(hw, HAS_RATE_CONTROL); 201930686bf7SJohannes Berg ieee80211_hw_set(hw, AMPDU_AGGREGATION); 2020ce86893fSKarun Eagalapati ieee80211_hw_set(hw, SUPPORTS_PS); 2021ce86893fSKarun Eagalapati ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 2022dad0d04fSFariya Fatima 2023dad0d04fSFariya Fatima hw->queues = MAX_HW_QUEUES; 2024dad0d04fSFariya Fatima hw->extra_tx_headroom = RSI_NEEDED_HEADROOM; 2025dad0d04fSFariya Fatima 2026dad0d04fSFariya Fatima hw->max_rates = 1; 2027dad0d04fSFariya Fatima hw->max_rate_tries = MAX_RETRIES; 2028db07971dSKarun Eagalapati hw->uapsd_queues = RSI_IEEE80211_UAPSD_QUEUES; 2029db07971dSKarun Eagalapati hw->uapsd_max_sp_len = IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL; 2030dad0d04fSFariya Fatima 2031a55e50f0SAmitkumar Karwar hw->max_tx_aggregation_subframes = RSI_MAX_TX_AGGR_FRMS; 2032a55e50f0SAmitkumar Karwar hw->max_rx_aggregation_subframes = RSI_MAX_RX_AGGR_FRMS; 2033dad0d04fSFariya Fatima hw->rate_control_algorithm = "AARF"; 2034dad0d04fSFariya Fatima 2035dad0d04fSFariya Fatima SET_IEEE80211_PERM_ADDR(hw, common->mac_addr); 2036dad0d04fSFariya Fatima ether_addr_copy(hw->wiphy->addr_mask, addr_mask); 2037dad0d04fSFariya Fatima 20386da1e00aSPrameela Rani Garnepudi wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 2039421eedffSPrameela Rani Garnepudi BIT(NL80211_IFTYPE_AP) | 2040421eedffSPrameela Rani Garnepudi BIT(NL80211_IFTYPE_P2P_DEVICE) | 2041421eedffSPrameela Rani Garnepudi BIT(NL80211_IFTYPE_P2P_CLIENT) | 2042421eedffSPrameela Rani Garnepudi BIT(NL80211_IFTYPE_P2P_GO); 2043421eedffSPrameela Rani Garnepudi 2044dad0d04fSFariya Fatima wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 2045dad0d04fSFariya Fatima wiphy->retry_short = RETRY_SHORT; 2046dad0d04fSFariya Fatima wiphy->retry_long = RETRY_LONG; 2047dad0d04fSFariya Fatima wiphy->frag_threshold = IEEE80211_MAX_FRAG_THRESHOLD; 2048dad0d04fSFariya Fatima wiphy->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 2049dad0d04fSFariya Fatima wiphy->flags = 0; 2050dad0d04fSFariya Fatima 2051dad0d04fSFariya Fatima wiphy->available_antennas_rx = 1; 2052dad0d04fSFariya Fatima wiphy->available_antennas_tx = 1; 2053f0b147b8SAmitkumar Karwar 2054d5414c23SAditya Pakki status = rsi_register_rates_channels(adapter, NL80211_BAND_2GHZ); 2055d5414c23SAditya Pakki if (status) 2056d5414c23SAditya Pakki return status; 205757fbcce3SJohannes Berg wiphy->bands[NL80211_BAND_2GHZ] = 205857fbcce3SJohannes Berg &adapter->sbands[NL80211_BAND_2GHZ]; 2059f0b147b8SAmitkumar Karwar if (common->num_supp_bands > 1) { 2060d5414c23SAditya Pakki status = rsi_register_rates_channels(adapter, 2061d5414c23SAditya Pakki NL80211_BAND_5GHZ); 2062d5414c23SAditya Pakki if (status) 2063d5414c23SAditya Pakki return status; 206457fbcce3SJohannes Berg wiphy->bands[NL80211_BAND_5GHZ] = 206557fbcce3SJohannes Berg &adapter->sbands[NL80211_BAND_5GHZ]; 2066f0b147b8SAmitkumar Karwar } 2067dad0d04fSFariya Fatima 20686da1e00aSPrameela Rani Garnepudi /* AP Parameters */ 20696da1e00aSPrameela Rani Garnepudi wiphy->max_ap_assoc_sta = rsi_max_ap_stas[common->oper_mode - 1]; 20706da1e00aSPrameela Rani Garnepudi common->max_stations = wiphy->max_ap_assoc_sta; 20716da1e00aSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "Max Stations Allowed = %d\n", common->max_stations); 20726da1e00aSPrameela Rani Garnepudi hw->sta_data_size = sizeof(struct rsi_sta); 20737fdcb8e1SPrameela Rani Garnepudi 20747fdcb8e1SPrameela Rani Garnepudi wiphy->max_scan_ssids = RSI_MAX_SCAN_SSIDS; 20757fdcb8e1SPrameela Rani Garnepudi wiphy->max_scan_ie_len = RSI_MAX_SCAN_IE_LEN; 20766da1e00aSPrameela Rani Garnepudi wiphy->flags = WIPHY_FLAG_REPORTS_OBSS; 20776da1e00aSPrameela Rani Garnepudi wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 20786da1e00aSPrameela Rani Garnepudi wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 207961d10842SPrameela Rani Garnepudi wiphy->reg_notifier = rsi_reg_notify; 208061d10842SPrameela Rani Garnepudi 2081e6b3b2edSAmitkumar Karwar #ifdef CONFIG_PM 2082f3ac4e73SKarun Eagalapati wiphy->wowlan = &rsi_wowlan_support; 2083e6b3b2edSAmitkumar Karwar #endif 2084e6b3b2edSAmitkumar Karwar 2085ae44b502SAndrew Zaborowski wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST); 2086ae44b502SAndrew Zaborowski 2087421eedffSPrameela Rani Garnepudi /* Wi-Fi direct parameters */ 2088df771911SPrameela Rani Garnepudi wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; 2089df771911SPrameela Rani Garnepudi wiphy->flags |= WIPHY_FLAG_OFFCHAN_TX; 2090df771911SPrameela Rani Garnepudi wiphy->max_remain_on_channel_duration = 10000; 2091421eedffSPrameela Rani Garnepudi hw->max_listen_interval = 10; 2092421eedffSPrameela Rani Garnepudi wiphy->iface_combinations = rsi_iface_combinations; 2093421eedffSPrameela Rani Garnepudi wiphy->n_iface_combinations = ARRAY_SIZE(rsi_iface_combinations); 2094421eedffSPrameela Rani Garnepudi 20951e9c410fSAmitkumar Karwar if (common->coex_mode > 1) 20961e9c410fSAmitkumar Karwar wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 20971e9c410fSAmitkumar Karwar 2098dad0d04fSFariya Fatima status = ieee80211_register_hw(hw); 2099dad0d04fSFariya Fatima if (status) 2100dad0d04fSFariya Fatima return status; 2101dad0d04fSFariya Fatima 2102dad0d04fSFariya Fatima return rsi_init_dbgfs(adapter); 2103dad0d04fSFariya Fatima } 2104