1dad0d04fSFariya Fatima /** 2dad0d04fSFariya Fatima * Copyright (c) 2014 Redpine Signals Inc. 3dad0d04fSFariya Fatima * 4dad0d04fSFariya Fatima * Permission to use, copy, modify, and/or distribute this software for any 5dad0d04fSFariya Fatima * purpose with or without fee is hereby granted, provided that the above 6dad0d04fSFariya Fatima * copyright notice and this permission notice appear in all copies. 7dad0d04fSFariya Fatima * 8dad0d04fSFariya Fatima * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9dad0d04fSFariya Fatima * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10dad0d04fSFariya Fatima * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11dad0d04fSFariya Fatima * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12dad0d04fSFariya Fatima * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13dad0d04fSFariya Fatima * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14dad0d04fSFariya Fatima * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15dad0d04fSFariya Fatima */ 16dad0d04fSFariya Fatima 17dad0d04fSFariya Fatima #include <linux/etherdevice.h> 18dad0d04fSFariya Fatima #include "rsi_debugfs.h" 19dad0d04fSFariya Fatima #include "rsi_mgmt.h" 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 * 191dad0d04fSFariya Fatima * Return: None. 192dad0d04fSFariya Fatima */ 193dad0d04fSFariya Fatima static void 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) { 199dad0d04fSFariya Fatima channels = kmalloc(sizeof(rsi_2ghz_channels), GFP_KERNEL); 200dad0d04fSFariya Fatima memcpy(channels, 201dad0d04fSFariya Fatima rsi_2ghz_channels, 202dad0d04fSFariya Fatima sizeof(rsi_2ghz_channels)); 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 { 208dad0d04fSFariya Fatima channels = kmalloc(sizeof(rsi_5ghz_channels), GFP_KERNEL); 209dad0d04fSFariya Fatima memcpy(channels, 210dad0d04fSFariya Fatima rsi_5ghz_channels, 211dad0d04fSFariya Fatima sizeof(rsi_5ghz_channels)); 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; */ 230dad0d04fSFariya Fatima } 231dad0d04fSFariya Fatima 2327fdcb8e1SPrameela Rani Garnepudi static int rsi_mac80211_hw_scan_start(struct ieee80211_hw *hw, 2337fdcb8e1SPrameela Rani Garnepudi struct ieee80211_vif *vif, 2347fdcb8e1SPrameela Rani Garnepudi struct ieee80211_scan_request *hw_req) 2357fdcb8e1SPrameela Rani Garnepudi { 2367fdcb8e1SPrameela Rani Garnepudi struct cfg80211_scan_request *scan_req = &hw_req->req; 2377fdcb8e1SPrameela Rani Garnepudi struct rsi_hw *adapter = hw->priv; 2387fdcb8e1SPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 2397fdcb8e1SPrameela Rani Garnepudi struct ieee80211_bss_conf *bss = &vif->bss_conf; 2407fdcb8e1SPrameela Rani Garnepudi 2417fdcb8e1SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "***** Hardware scan start *****\n"); 2427fdcb8e1SPrameela Rani Garnepudi 2437fdcb8e1SPrameela Rani Garnepudi if (common->fsm_state != FSM_MAC_INIT_DONE) 2447fdcb8e1SPrameela Rani Garnepudi return -ENODEV; 2457fdcb8e1SPrameela Rani Garnepudi 2467fdcb8e1SPrameela Rani Garnepudi if ((common->wow_flags & RSI_WOW_ENABLED) || 2477fdcb8e1SPrameela Rani Garnepudi scan_req->n_channels == 0) 2487fdcb8e1SPrameela Rani Garnepudi return -EINVAL; 2497fdcb8e1SPrameela Rani Garnepudi 2507fdcb8e1SPrameela Rani Garnepudi /* Scan already in progress. So return */ 2517fdcb8e1SPrameela Rani Garnepudi if (common->bgscan_en) 2527fdcb8e1SPrameela Rani Garnepudi return -EBUSY; 2537fdcb8e1SPrameela Rani Garnepudi 2547fdcb8e1SPrameela Rani Garnepudi /* If STA is not connected, return with special value 1, in order 2557fdcb8e1SPrameela Rani Garnepudi * to start sw_scan in mac80211 2567fdcb8e1SPrameela Rani Garnepudi */ 2577fdcb8e1SPrameela Rani Garnepudi if (!bss->assoc) 2587fdcb8e1SPrameela Rani Garnepudi return 1; 2597fdcb8e1SPrameela Rani Garnepudi 2607fdcb8e1SPrameela Rani Garnepudi mutex_lock(&common->mutex); 2617fdcb8e1SPrameela Rani Garnepudi common->hwscan = scan_req; 2627fdcb8e1SPrameela Rani Garnepudi if (!rsi_send_bgscan_params(common, RSI_START_BGSCAN)) { 2637fdcb8e1SPrameela Rani Garnepudi if (!rsi_send_bgscan_probe_req(common, vif)) { 2647fdcb8e1SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Background scan started...\n"); 2657fdcb8e1SPrameela Rani Garnepudi common->bgscan_en = true; 2667fdcb8e1SPrameela Rani Garnepudi } 2677fdcb8e1SPrameela Rani Garnepudi } 2687fdcb8e1SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 2697fdcb8e1SPrameela Rani Garnepudi 2707fdcb8e1SPrameela Rani Garnepudi return 0; 2717fdcb8e1SPrameela Rani Garnepudi } 2727fdcb8e1SPrameela Rani Garnepudi 2737fdcb8e1SPrameela Rani Garnepudi static void rsi_mac80211_cancel_hw_scan(struct ieee80211_hw *hw, 2747fdcb8e1SPrameela Rani Garnepudi struct ieee80211_vif *vif) 2757fdcb8e1SPrameela Rani Garnepudi { 2767fdcb8e1SPrameela Rani Garnepudi struct rsi_hw *adapter = hw->priv; 2777fdcb8e1SPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 2787fdcb8e1SPrameela Rani Garnepudi struct cfg80211_scan_info info; 2797fdcb8e1SPrameela Rani Garnepudi 2807fdcb8e1SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "***** Hardware scan stop *****\n"); 2817fdcb8e1SPrameela Rani Garnepudi mutex_lock(&common->mutex); 2827fdcb8e1SPrameela Rani Garnepudi 2837fdcb8e1SPrameela Rani Garnepudi if (common->bgscan_en) { 2847fdcb8e1SPrameela Rani Garnepudi if (!rsi_send_bgscan_params(common, RSI_STOP_BGSCAN)) 2857fdcb8e1SPrameela Rani Garnepudi common->bgscan_en = false; 2867fdcb8e1SPrameela Rani Garnepudi info.aborted = false; 2877fdcb8e1SPrameela Rani Garnepudi ieee80211_scan_completed(adapter->hw, &info); 2887fdcb8e1SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Back ground scan cancelled\b\n"); 2897fdcb8e1SPrameela Rani Garnepudi } 2907fdcb8e1SPrameela Rani Garnepudi common->hwscan = NULL; 2917fdcb8e1SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 2927fdcb8e1SPrameela Rani Garnepudi } 2937fdcb8e1SPrameela Rani Garnepudi 294dad0d04fSFariya Fatima /** 29519d2e619SJahnavi Meher * rsi_mac80211_detach() - This function is used to de-initialize the 296dad0d04fSFariya Fatima * Mac80211 stack. 297dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 298dad0d04fSFariya Fatima * 299dad0d04fSFariya Fatima * Return: None. 300dad0d04fSFariya Fatima */ 301dad0d04fSFariya Fatima void rsi_mac80211_detach(struct rsi_hw *adapter) 302dad0d04fSFariya Fatima { 303dad0d04fSFariya Fatima struct ieee80211_hw *hw = adapter->hw; 304b022539dSPrameela Rani Garnepudi enum nl80211_band band; 305dad0d04fSFariya Fatima 306dad0d04fSFariya Fatima if (hw) { 307dad0d04fSFariya Fatima ieee80211_stop_queues(hw); 308dad0d04fSFariya Fatima ieee80211_unregister_hw(hw); 309dad0d04fSFariya Fatima ieee80211_free_hw(hw); 310abd39c6dSSanjay Konduri adapter->hw = NULL; 311dad0d04fSFariya Fatima } 312dad0d04fSFariya Fatima 313b022539dSPrameela Rani Garnepudi for (band = 0; band < NUM_NL80211_BANDS; band++) { 314b022539dSPrameela Rani Garnepudi struct ieee80211_supported_band *sband = 315b022539dSPrameela Rani Garnepudi &adapter->sbands[band]; 316b022539dSPrameela Rani Garnepudi 317b022539dSPrameela Rani Garnepudi kfree(sband->channels); 318b022539dSPrameela Rani Garnepudi } 319b022539dSPrameela Rani Garnepudi 320b022539dSPrameela Rani Garnepudi #ifdef CONFIG_RSI_DEBUGFS 321dad0d04fSFariya Fatima rsi_remove_dbgfs(adapter); 322b022539dSPrameela Rani Garnepudi kfree(adapter->dfsentry); 323b022539dSPrameela Rani Garnepudi #endif 324dad0d04fSFariya Fatima } 325dad0d04fSFariya Fatima EXPORT_SYMBOL_GPL(rsi_mac80211_detach); 326dad0d04fSFariya Fatima 327dad0d04fSFariya Fatima /** 328dad0d04fSFariya Fatima * rsi_indicate_tx_status() - This function indicates the transmit status. 329dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 330dad0d04fSFariya Fatima * @skb: Pointer to the socket buffer structure. 331dad0d04fSFariya Fatima * @status: Status 332dad0d04fSFariya Fatima * 333dad0d04fSFariya Fatima * Return: None. 334dad0d04fSFariya Fatima */ 335dad0d04fSFariya Fatima void rsi_indicate_tx_status(struct rsi_hw *adapter, 336dad0d04fSFariya Fatima struct sk_buff *skb, 337dad0d04fSFariya Fatima int status) 338dad0d04fSFariya Fatima { 339dad0d04fSFariya Fatima struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 3405059afacSPrameela Rani Garnepudi struct skb_info *tx_params; 341dad0d04fSFariya Fatima 3425059afacSPrameela Rani Garnepudi if (!adapter->hw) { 3435059afacSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "##### No MAC #####\n"); 3445059afacSPrameela Rani Garnepudi return; 3455059afacSPrameela Rani Garnepudi } 346dad0d04fSFariya Fatima 347dad0d04fSFariya Fatima if (!status) 348dad0d04fSFariya Fatima info->flags |= IEEE80211_TX_STAT_ACK; 349dad0d04fSFariya Fatima 3505059afacSPrameela Rani Garnepudi tx_params = (struct skb_info *)info->driver_data; 3515059afacSPrameela Rani Garnepudi skb_pull(skb, tx_params->internal_hdr_size); 3525059afacSPrameela Rani Garnepudi memset(info->driver_data, 0, IEEE80211_TX_INFO_DRIVER_DATA_SIZE); 3535059afacSPrameela Rani Garnepudi 354dad0d04fSFariya Fatima ieee80211_tx_status_irqsafe(adapter->hw, skb); 355dad0d04fSFariya Fatima } 356dad0d04fSFariya Fatima 357dad0d04fSFariya Fatima /** 358dad0d04fSFariya Fatima * rsi_mac80211_tx() - This is the handler that 802.11 module calls for each 359dad0d04fSFariya Fatima * transmitted frame.SKB contains the buffer starting 360dad0d04fSFariya Fatima * from the IEEE 802.11 header. 361dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 362dad0d04fSFariya Fatima * @control: Pointer to the ieee80211_tx_control structure 363dad0d04fSFariya Fatima * @skb: Pointer to the socket buffer structure. 364dad0d04fSFariya Fatima * 365dad0d04fSFariya Fatima * Return: None 366dad0d04fSFariya Fatima */ 367dad0d04fSFariya Fatima static void rsi_mac80211_tx(struct ieee80211_hw *hw, 368dad0d04fSFariya Fatima struct ieee80211_tx_control *control, 369dad0d04fSFariya Fatima struct sk_buff *skb) 370dad0d04fSFariya Fatima { 371dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 372dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 373dad0d04fSFariya Fatima 374dad0d04fSFariya Fatima rsi_core_xmit(common, skb); 375dad0d04fSFariya Fatima } 376dad0d04fSFariya Fatima 377dad0d04fSFariya Fatima /** 378dad0d04fSFariya Fatima * rsi_mac80211_start() - This is first handler that 802.11 module calls, since 379dad0d04fSFariya Fatima * the driver init is complete by then, just 380dad0d04fSFariya Fatima * returns success. 381dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 382dad0d04fSFariya Fatima * 383dad0d04fSFariya Fatima * Return: 0 as success. 384dad0d04fSFariya Fatima */ 385dad0d04fSFariya Fatima static int rsi_mac80211_start(struct ieee80211_hw *hw) 386dad0d04fSFariya Fatima { 387dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 388dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 389dad0d04fSFariya Fatima 390edba3532SPavani Muthyala rsi_dbg(ERR_ZONE, "===> Interface UP <===\n"); 391dad0d04fSFariya Fatima mutex_lock(&common->mutex); 392b6c8d06cSKarun Eagalapati if (common->hibernate_resume) { 393b6c8d06cSKarun Eagalapati common->reinit_hw = true; 394b6c8d06cSKarun Eagalapati adapter->host_intf_ops->reinit_device(adapter); 395b6c8d06cSKarun Eagalapati wait_for_completion(&adapter->priv->wlan_init_completion); 396b6c8d06cSKarun Eagalapati } 397dad0d04fSFariya Fatima common->iface_down = false; 398edba3532SPavani Muthyala wiphy_rfkill_start_polling(hw->wiphy); 399e6d64284SPrameela Rani Garnepudi rsi_send_rx_filter_frame(common, 0); 400edba3532SPavani Muthyala mutex_unlock(&common->mutex); 401e6d64284SPrameela Rani Garnepudi 402dad0d04fSFariya Fatima return 0; 403dad0d04fSFariya Fatima } 404dad0d04fSFariya Fatima 405dad0d04fSFariya Fatima /** 406dad0d04fSFariya Fatima * rsi_mac80211_stop() - This is the last handler that 802.11 module calls. 407dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 408dad0d04fSFariya Fatima * 409dad0d04fSFariya Fatima * Return: None. 410dad0d04fSFariya Fatima */ 411dad0d04fSFariya Fatima static void rsi_mac80211_stop(struct ieee80211_hw *hw) 412dad0d04fSFariya Fatima { 413dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 414dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 415dad0d04fSFariya Fatima 416edba3532SPavani Muthyala rsi_dbg(ERR_ZONE, "===> Interface DOWN <===\n"); 417dad0d04fSFariya Fatima mutex_lock(&common->mutex); 418dad0d04fSFariya Fatima common->iface_down = true; 419edba3532SPavani Muthyala wiphy_rfkill_stop_polling(hw->wiphy); 42086583258SPrameela Rani Garnepudi 42186583258SPrameela Rani Garnepudi /* Block all rx frames */ 42286583258SPrameela Rani Garnepudi rsi_send_rx_filter_frame(common, 0xffff); 42386583258SPrameela Rani Garnepudi 424dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 425dad0d04fSFariya Fatima } 426dad0d04fSFariya Fatima 427b8bd3a43SPrameela Rani Garnepudi static int rsi_map_intf_mode(enum nl80211_iftype vif_type) 428b8bd3a43SPrameela Rani Garnepudi { 429b8bd3a43SPrameela Rani Garnepudi switch (vif_type) { 430b8bd3a43SPrameela Rani Garnepudi case NL80211_IFTYPE_STATION: 431b8bd3a43SPrameela Rani Garnepudi return RSI_OPMODE_STA; 432b8bd3a43SPrameela Rani Garnepudi case NL80211_IFTYPE_AP: 433b8bd3a43SPrameela Rani Garnepudi return RSI_OPMODE_AP; 434b8bd3a43SPrameela Rani Garnepudi case NL80211_IFTYPE_P2P_DEVICE: 435b8bd3a43SPrameela Rani Garnepudi return RSI_OPMODE_P2P_CLIENT; 436b8bd3a43SPrameela Rani Garnepudi case NL80211_IFTYPE_P2P_CLIENT: 437b8bd3a43SPrameela Rani Garnepudi return RSI_OPMODE_P2P_CLIENT; 438b8bd3a43SPrameela Rani Garnepudi case NL80211_IFTYPE_P2P_GO: 439b8bd3a43SPrameela Rani Garnepudi return RSI_OPMODE_P2P_GO; 440b8bd3a43SPrameela Rani Garnepudi default: 441b8bd3a43SPrameela Rani Garnepudi return RSI_OPMODE_UNSUPPORTED; 442b8bd3a43SPrameela Rani Garnepudi } 443b8bd3a43SPrameela Rani Garnepudi } 444b8bd3a43SPrameela Rani Garnepudi 445dad0d04fSFariya Fatima /** 446dad0d04fSFariya Fatima * rsi_mac80211_add_interface() - This function is called when a netdevice 447dad0d04fSFariya Fatima * attached to the hardware is enabled. 448dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 449dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 450dad0d04fSFariya Fatima * 451dad0d04fSFariya Fatima * Return: ret: 0 on success, negative error code on failure. 452dad0d04fSFariya Fatima */ 453dad0d04fSFariya Fatima static int rsi_mac80211_add_interface(struct ieee80211_hw *hw, 454dad0d04fSFariya Fatima struct ieee80211_vif *vif) 455dad0d04fSFariya Fatima { 456dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 457dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 458b8bd3a43SPrameela Rani Garnepudi struct vif_priv *vif_info = (struct vif_priv *)vif->drv_priv; 45903c34c0dSPrameela Rani Garnepudi enum opmode intf_mode; 460b8bd3a43SPrameela Rani Garnepudi enum vap_status vap_status; 461b8bd3a43SPrameela Rani Garnepudi int vap_idx = -1, i; 462dad0d04fSFariya Fatima 463db07971dSKarun Eagalapati vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD; 464dad0d04fSFariya Fatima mutex_lock(&common->mutex); 46503c34c0dSPrameela Rani Garnepudi 466b8bd3a43SPrameela Rani Garnepudi intf_mode = rsi_map_intf_mode(vif->type); 467b8bd3a43SPrameela Rani Garnepudi if (intf_mode == RSI_OPMODE_UNSUPPORTED) { 468dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, 469dad0d04fSFariya Fatima "%s: Interface type %d not supported\n", __func__, 470dad0d04fSFariya Fatima vif->type); 471b8bd3a43SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 472b8bd3a43SPrameela Rani Garnepudi return -EOPNOTSUPP; 473dad0d04fSFariya Fatima } 474b8bd3a43SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_P2P_DEVICE) || 475b8bd3a43SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_CLIENT) || 476b8bd3a43SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) 477b8bd3a43SPrameela Rani Garnepudi common->p2p_enabled = true; 47803c34c0dSPrameela Rani Garnepudi 479b8bd3a43SPrameela Rani Garnepudi /* Get free vap index */ 480b8bd3a43SPrameela Rani Garnepudi for (i = 0; i < RSI_MAX_VIFS; i++) { 4811d219456SSiva Rebbagondla if (!adapter->vifs[i] || 4821d219456SSiva Rebbagondla !memcmp(vif->addr, adapter->vifs[i]->addr, ETH_ALEN)) { 483b8bd3a43SPrameela Rani Garnepudi vap_idx = i; 484b8bd3a43SPrameela Rani Garnepudi break; 485b8bd3a43SPrameela Rani Garnepudi } 486b8bd3a43SPrameela Rani Garnepudi } 487b8bd3a43SPrameela Rani Garnepudi if (vap_idx < 0) { 488b8bd3a43SPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "Reject: Max VAPs reached\n"); 489b8bd3a43SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 490b8bd3a43SPrameela Rani Garnepudi return -EOPNOTSUPP; 491b8bd3a43SPrameela Rani Garnepudi } 492b8bd3a43SPrameela Rani Garnepudi vif_info->vap_id = vap_idx; 493b8bd3a43SPrameela Rani Garnepudi adapter->vifs[vap_idx] = vif; 494b8bd3a43SPrameela Rani Garnepudi adapter->sc_nvifs++; 495b8bd3a43SPrameela Rani Garnepudi vap_status = VAP_ADD; 496b8bd3a43SPrameela Rani Garnepudi 497b8bd3a43SPrameela Rani Garnepudi if (rsi_set_vap_capabilities(common, intf_mode, vif->addr, 498b8bd3a43SPrameela Rani Garnepudi vif_info->vap_id, vap_status)) { 49903c34c0dSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "Failed to set VAP capabilities\n"); 500b8bd3a43SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 501b8bd3a43SPrameela Rani Garnepudi return -EINVAL; 50203c34c0dSPrameela Rani Garnepudi } 50303c34c0dSPrameela Rani Garnepudi 504b8bd3a43SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_AP) || 505b8bd3a43SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) { 50603c34c0dSPrameela Rani Garnepudi rsi_send_rx_filter_frame(common, DISALLOW_BEACONS); 50703c34c0dSPrameela Rani Garnepudi common->min_rate = RSI_RATE_AUTO; 50803c34c0dSPrameela Rani Garnepudi for (i = 0; i < common->max_stations; i++) 50903c34c0dSPrameela Rani Garnepudi common->stations[i].sta = NULL; 51003c34c0dSPrameela Rani Garnepudi } 51103c34c0dSPrameela Rani Garnepudi 512dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 513dad0d04fSFariya Fatima 514b8bd3a43SPrameela Rani Garnepudi return 0; 515dad0d04fSFariya Fatima } 516dad0d04fSFariya Fatima 517dad0d04fSFariya Fatima /** 518dad0d04fSFariya Fatima * rsi_mac80211_remove_interface() - This function notifies driver that an 519dad0d04fSFariya Fatima * interface is going down. 520dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 521dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 522dad0d04fSFariya Fatima * 523dad0d04fSFariya Fatima * Return: None. 524dad0d04fSFariya Fatima */ 525dad0d04fSFariya Fatima static void rsi_mac80211_remove_interface(struct ieee80211_hw *hw, 526dad0d04fSFariya Fatima struct ieee80211_vif *vif) 527dad0d04fSFariya Fatima { 528dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 529dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 53075ca0049SPrameela Rani Garnepudi enum opmode opmode; 531b8bd3a43SPrameela Rani Garnepudi int i; 53275ca0049SPrameela Rani Garnepudi 53375ca0049SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Remove Interface Called\n"); 534dad0d04fSFariya Fatima 535dad0d04fSFariya Fatima mutex_lock(&common->mutex); 53675ca0049SPrameela Rani Garnepudi 53775ca0049SPrameela Rani Garnepudi if (adapter->sc_nvifs <= 0) { 53875ca0049SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 53975ca0049SPrameela Rani Garnepudi return; 54077364aaeSPrameela Rani Garnepudi } 541dad0d04fSFariya Fatima 542b8bd3a43SPrameela Rani Garnepudi opmode = rsi_map_intf_mode(vif->type); 543b8bd3a43SPrameela Rani Garnepudi if (opmode == RSI_OPMODE_UNSUPPORTED) { 544b8bd3a43SPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "Opmode error : %d\n", opmode); 54575ca0049SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 54675ca0049SPrameela Rani Garnepudi return; 54775ca0049SPrameela Rani Garnepudi } 548b8bd3a43SPrameela Rani Garnepudi for (i = 0; i < RSI_MAX_VIFS; i++) { 549b8bd3a43SPrameela Rani Garnepudi if (!adapter->vifs[i]) 550b8bd3a43SPrameela Rani Garnepudi continue; 551b8bd3a43SPrameela Rani Garnepudi if (vif == adapter->vifs[i]) { 55275ca0049SPrameela Rani Garnepudi rsi_set_vap_capabilities(common, opmode, vif->addr, 553b8bd3a43SPrameela Rani Garnepudi i, VAP_DELETE); 55475ca0049SPrameela Rani Garnepudi adapter->sc_nvifs--; 555b8bd3a43SPrameela Rani Garnepudi adapter->vifs[i] = NULL; 556b8bd3a43SPrameela Rani Garnepudi } 557b8bd3a43SPrameela Rani Garnepudi } 558dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 559dad0d04fSFariya Fatima } 560dad0d04fSFariya Fatima 561dad0d04fSFariya Fatima /** 562686a2541SJahnavi Meher * rsi_channel_change() - This function is a performs the checks 563686a2541SJahnavi Meher * required for changing a channel and sets 564686a2541SJahnavi Meher * the channel accordingly. 565686a2541SJahnavi Meher * @hw: Pointer to the ieee80211_hw structure. 566686a2541SJahnavi Meher * 567686a2541SJahnavi Meher * Return: 0 on success, negative error code on failure. 568686a2541SJahnavi Meher */ 569686a2541SJahnavi Meher static int rsi_channel_change(struct ieee80211_hw *hw) 570686a2541SJahnavi Meher { 571686a2541SJahnavi Meher struct rsi_hw *adapter = hw->priv; 572686a2541SJahnavi Meher struct rsi_common *common = adapter->priv; 573686a2541SJahnavi Meher int status = -EOPNOTSUPP; 574686a2541SJahnavi Meher struct ieee80211_channel *curchan = hw->conf.chandef.chan; 575686a2541SJahnavi Meher u16 channel = curchan->hw_value; 576df771911SPrameela Rani Garnepudi struct ieee80211_vif *vif; 577df771911SPrameela Rani Garnepudi struct ieee80211_bss_conf *bss; 578df771911SPrameela Rani Garnepudi bool assoc = false; 579df771911SPrameela Rani Garnepudi int i; 580686a2541SJahnavi Meher 581686a2541SJahnavi Meher rsi_dbg(INFO_ZONE, 582686a2541SJahnavi Meher "%s: Set channel: %d MHz type: %d channel_no %d\n", 583686a2541SJahnavi Meher __func__, curchan->center_freq, 584686a2541SJahnavi Meher curchan->flags, channel); 585686a2541SJahnavi Meher 586df771911SPrameela Rani Garnepudi for (i = 0; i < RSI_MAX_VIFS; i++) { 587df771911SPrameela Rani Garnepudi vif = adapter->vifs[i]; 588df771911SPrameela Rani Garnepudi if (!vif) 589df771911SPrameela Rani Garnepudi continue; 590df771911SPrameela Rani Garnepudi if (vif->type == NL80211_IFTYPE_STATION) { 591df771911SPrameela Rani Garnepudi bss = &vif->bss_conf; 592686a2541SJahnavi Meher if (bss->assoc) { 593df771911SPrameela Rani Garnepudi assoc = true; 594df771911SPrameela Rani Garnepudi break; 595df771911SPrameela Rani Garnepudi } 596df771911SPrameela Rani Garnepudi } 597df771911SPrameela Rani Garnepudi } 598df771911SPrameela Rani Garnepudi if (assoc) { 599686a2541SJahnavi Meher if (!common->hw_data_qs_blocked && 600df771911SPrameela Rani Garnepudi (rsi_get_connected_channel(vif) != channel)) { 601686a2541SJahnavi Meher rsi_dbg(INFO_ZONE, "blk data q %d\n", channel); 602686a2541SJahnavi Meher if (!rsi_send_block_unblock_frame(common, true)) 603686a2541SJahnavi Meher common->hw_data_qs_blocked = true; 604686a2541SJahnavi Meher } 605686a2541SJahnavi Meher } 606686a2541SJahnavi Meher 607df771911SPrameela Rani Garnepudi status = rsi_band_check(common, curchan); 608686a2541SJahnavi Meher if (!status) 60961d10842SPrameela Rani Garnepudi status = rsi_set_channel(adapter->priv, curchan); 610686a2541SJahnavi Meher 611df771911SPrameela Rani Garnepudi if (assoc) { 612686a2541SJahnavi Meher if (common->hw_data_qs_blocked && 613df771911SPrameela Rani Garnepudi (rsi_get_connected_channel(vif) == channel)) { 614686a2541SJahnavi Meher rsi_dbg(INFO_ZONE, "unblk data q %d\n", channel); 615686a2541SJahnavi Meher if (!rsi_send_block_unblock_frame(common, false)) 616686a2541SJahnavi Meher common->hw_data_qs_blocked = false; 617686a2541SJahnavi Meher } 618686a2541SJahnavi Meher } 619686a2541SJahnavi Meher 620686a2541SJahnavi Meher return status; 621686a2541SJahnavi Meher } 622686a2541SJahnavi Meher 623686a2541SJahnavi Meher /** 6248b36de8cSPrameela Rani Garnepudi * rsi_config_power() - This function configures tx power to device 6258b36de8cSPrameela Rani Garnepudi * @hw: Pointer to the ieee80211_hw structure. 6268b36de8cSPrameela Rani Garnepudi * 6278b36de8cSPrameela Rani Garnepudi * Return: 0 on success, negative error code on failure. 6288b36de8cSPrameela Rani Garnepudi */ 6298b36de8cSPrameela Rani Garnepudi static int rsi_config_power(struct ieee80211_hw *hw) 6308b36de8cSPrameela Rani Garnepudi { 6318b36de8cSPrameela Rani Garnepudi struct rsi_hw *adapter = hw->priv; 6328b36de8cSPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 6338b36de8cSPrameela Rani Garnepudi struct ieee80211_conf *conf = &hw->conf; 6348b36de8cSPrameela Rani Garnepudi 6358b36de8cSPrameela Rani Garnepudi if (adapter->sc_nvifs <= 0) { 6368b36de8cSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "%s: No virtual interface found\n", __func__); 6378b36de8cSPrameela Rani Garnepudi return -EINVAL; 6388b36de8cSPrameela Rani Garnepudi } 6398b36de8cSPrameela Rani Garnepudi 6408b36de8cSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, 6418b36de8cSPrameela Rani Garnepudi "%s: Set tx power: %d dBM\n", __func__, conf->power_level); 6428b36de8cSPrameela Rani Garnepudi 6438b36de8cSPrameela Rani Garnepudi if (conf->power_level == common->tx_power) 6448b36de8cSPrameela Rani Garnepudi return 0; 6458b36de8cSPrameela Rani Garnepudi 6468b36de8cSPrameela Rani Garnepudi common->tx_power = conf->power_level; 6478b36de8cSPrameela Rani Garnepudi 6488b36de8cSPrameela Rani Garnepudi return rsi_send_radio_params_update(common); 6498b36de8cSPrameela Rani Garnepudi } 6508b36de8cSPrameela Rani Garnepudi 6518b36de8cSPrameela Rani Garnepudi /** 652dad0d04fSFariya Fatima * rsi_mac80211_config() - This function is a handler for configuration 653dad0d04fSFariya Fatima * requests. The stack calls this function to 654dad0d04fSFariya Fatima * change hardware configuration, e.g., channel. 655dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 656dad0d04fSFariya Fatima * @changed: Changed flags set. 657dad0d04fSFariya Fatima * 658dad0d04fSFariya Fatima * Return: 0 on success, negative error code on failure. 659dad0d04fSFariya Fatima */ 660dad0d04fSFariya Fatima static int rsi_mac80211_config(struct ieee80211_hw *hw, 661dad0d04fSFariya Fatima u32 changed) 662dad0d04fSFariya Fatima { 663dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 664dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 665ce86893fSKarun Eagalapati struct ieee80211_conf *conf = &hw->conf; 666dad0d04fSFariya Fatima int status = -EOPNOTSUPP; 667dad0d04fSFariya Fatima 668dad0d04fSFariya Fatima mutex_lock(&common->mutex); 669dad0d04fSFariya Fatima 670686a2541SJahnavi Meher if (changed & IEEE80211_CONF_CHANGE_CHANNEL) 671686a2541SJahnavi Meher status = rsi_channel_change(hw); 672686a2541SJahnavi Meher 6738b36de8cSPrameela Rani Garnepudi /* tx power */ 6748b36de8cSPrameela Rani Garnepudi if (changed & IEEE80211_CONF_CHANGE_POWER) { 6758b36de8cSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "%s: Configuring Power\n", __func__); 6768b36de8cSPrameela Rani Garnepudi status = rsi_config_power(hw); 6778b36de8cSPrameela Rani Garnepudi } 6788b36de8cSPrameela Rani Garnepudi 679ce86893fSKarun Eagalapati /* Power save parameters */ 680efe877aaSPrameela Rani Garnepudi if (changed & IEEE80211_CONF_CHANGE_PS) { 681cbbfdd6cSAmitkumar Karwar struct ieee80211_vif *vif, *sta_vif = NULL; 682ce86893fSKarun Eagalapati unsigned long flags; 683efe877aaSPrameela Rani Garnepudi int i, set_ps = 1; 684ce86893fSKarun Eagalapati 685efe877aaSPrameela Rani Garnepudi for (i = 0; i < RSI_MAX_VIFS; i++) { 686efe877aaSPrameela Rani Garnepudi vif = adapter->vifs[i]; 687efe877aaSPrameela Rani Garnepudi if (!vif) 688efe877aaSPrameela Rani Garnepudi continue; 689efe877aaSPrameela Rani Garnepudi /* Don't go to power save if AP vap exists */ 690efe877aaSPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_AP) || 691efe877aaSPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) { 692efe877aaSPrameela Rani Garnepudi set_ps = 0; 693efe877aaSPrameela Rani Garnepudi break; 694efe877aaSPrameela Rani Garnepudi } 695cbbfdd6cSAmitkumar Karwar if ((vif->type == NL80211_IFTYPE_STATION || 696cbbfdd6cSAmitkumar Karwar vif->type == NL80211_IFTYPE_P2P_CLIENT) && 697cbbfdd6cSAmitkumar Karwar (!sta_vif || vif->bss_conf.assoc)) 698cbbfdd6cSAmitkumar Karwar sta_vif = vif; 699efe877aaSPrameela Rani Garnepudi } 700cbbfdd6cSAmitkumar Karwar if (set_ps && sta_vif) { 701ce86893fSKarun Eagalapati spin_lock_irqsave(&adapter->ps_lock, flags); 702ce86893fSKarun Eagalapati if (conf->flags & IEEE80211_CONF_PS) 703cbbfdd6cSAmitkumar Karwar rsi_enable_ps(adapter, sta_vif); 704ce86893fSKarun Eagalapati else 705cbbfdd6cSAmitkumar Karwar rsi_disable_ps(adapter, sta_vif); 706ce86893fSKarun Eagalapati spin_unlock_irqrestore(&adapter->ps_lock, flags); 707ce86893fSKarun Eagalapati } 708efe877aaSPrameela Rani Garnepudi } 709ce86893fSKarun Eagalapati 71080a88ecfSKarun Eagalapati /* RTS threshold */ 71180a88ecfSKarun Eagalapati if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 71280a88ecfSKarun Eagalapati rsi_dbg(INFO_ZONE, "RTS threshold\n"); 71380a88ecfSKarun Eagalapati if ((common->rts_threshold) <= IEEE80211_MAX_RTS_THRESHOLD) { 71480a88ecfSKarun Eagalapati rsi_dbg(INFO_ZONE, 71580a88ecfSKarun Eagalapati "%s: Sending vap updates....\n", __func__); 71680a88ecfSKarun Eagalapati status = rsi_send_vap_dynamic_update(common); 71780a88ecfSKarun Eagalapati } 71880a88ecfSKarun Eagalapati } 719dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 720dad0d04fSFariya Fatima 721dad0d04fSFariya Fatima return status; 722dad0d04fSFariya Fatima } 723dad0d04fSFariya Fatima 724dad0d04fSFariya Fatima /** 725dad0d04fSFariya Fatima * rsi_get_connected_channel() - This function is used to get the current 726dad0d04fSFariya Fatima * connected channel number. 727dad0d04fSFariya Fatima * @adapter: Pointer to the adapter structure. 728dad0d04fSFariya Fatima * 729dad0d04fSFariya Fatima * Return: Current connected AP's channel number is returned. 730dad0d04fSFariya Fatima */ 731df771911SPrameela Rani Garnepudi u16 rsi_get_connected_channel(struct ieee80211_vif *vif) 732dad0d04fSFariya Fatima { 733df771911SPrameela Rani Garnepudi struct ieee80211_bss_conf *bss; 734df771911SPrameela Rani Garnepudi struct ieee80211_channel *channel; 735df771911SPrameela Rani Garnepudi 736df771911SPrameela Rani Garnepudi if (!vif) 737df771911SPrameela Rani Garnepudi return 0; 738df771911SPrameela Rani Garnepudi 739df771911SPrameela Rani Garnepudi bss = &vif->bss_conf; 740df771911SPrameela Rani Garnepudi channel = bss->chandef.chan; 741df771911SPrameela Rani Garnepudi 742df771911SPrameela Rani Garnepudi if (!channel) 743df771911SPrameela Rani Garnepudi return 0; 744df771911SPrameela Rani Garnepudi 745dad0d04fSFariya Fatima return channel->hw_value; 746dad0d04fSFariya Fatima } 747dad0d04fSFariya Fatima 748df771911SPrameela Rani Garnepudi static void rsi_switch_channel(struct rsi_hw *adapter, 749df771911SPrameela Rani Garnepudi struct ieee80211_vif *vif) 750df771911SPrameela Rani Garnepudi { 751df771911SPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 752df771911SPrameela Rani Garnepudi struct ieee80211_channel *channel; 753df771911SPrameela Rani Garnepudi 754df771911SPrameela Rani Garnepudi if (common->iface_down) 755df771911SPrameela Rani Garnepudi return; 756df771911SPrameela Rani Garnepudi if (!vif) 757df771911SPrameela Rani Garnepudi return; 758df771911SPrameela Rani Garnepudi 759df771911SPrameela Rani Garnepudi channel = vif->bss_conf.chandef.chan; 760df771911SPrameela Rani Garnepudi 761df771911SPrameela Rani Garnepudi if (!channel) 762df771911SPrameela Rani Garnepudi return; 763df771911SPrameela Rani Garnepudi 764df771911SPrameela Rani Garnepudi rsi_band_check(common, channel); 765df771911SPrameela Rani Garnepudi rsi_set_channel(common, channel); 766df771911SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Switched to channel - %d\n", channel->hw_value); 767dad0d04fSFariya Fatima } 768dad0d04fSFariya Fatima 769dad0d04fSFariya Fatima /** 770dad0d04fSFariya Fatima * rsi_mac80211_bss_info_changed() - This function is a handler for config 771dad0d04fSFariya Fatima * requests related to BSS parameters that 772dad0d04fSFariya Fatima * may vary during BSS's lifespan. 773dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 774dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 775dad0d04fSFariya Fatima * @bss_conf: Pointer to the ieee80211_bss_conf structure. 776dad0d04fSFariya Fatima * @changed: Changed flags set. 777dad0d04fSFariya Fatima * 778dad0d04fSFariya Fatima * Return: None. 779dad0d04fSFariya Fatima */ 780dad0d04fSFariya Fatima static void rsi_mac80211_bss_info_changed(struct ieee80211_hw *hw, 781dad0d04fSFariya Fatima struct ieee80211_vif *vif, 782dad0d04fSFariya Fatima struct ieee80211_bss_conf *bss_conf, 783dad0d04fSFariya Fatima u32 changed) 784dad0d04fSFariya Fatima { 785dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 786dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 787ce86893fSKarun Eagalapati struct ieee80211_bss_conf *bss = &vif->bss_conf; 788ce86893fSKarun Eagalapati struct ieee80211_conf *conf = &hw->conf; 789e6d64284SPrameela Rani Garnepudi u16 rx_filter_word = 0; 790dad0d04fSFariya Fatima 791dad0d04fSFariya Fatima mutex_lock(&common->mutex); 792dad0d04fSFariya Fatima if (changed & BSS_CHANGED_ASSOC) { 793dad0d04fSFariya Fatima rsi_dbg(INFO_ZONE, "%s: Changed Association status: %d\n", 794dad0d04fSFariya Fatima __func__, bss_conf->assoc); 795e6d64284SPrameela Rani Garnepudi if (bss_conf->assoc) { 796e6d64284SPrameela Rani Garnepudi /* Send the RX filter frame */ 797e6d64284SPrameela Rani Garnepudi rx_filter_word = (ALLOW_DATA_ASSOC_PEER | 798e6d64284SPrameela Rani Garnepudi ALLOW_CTRL_ASSOC_PEER | 799e6d64284SPrameela Rani Garnepudi ALLOW_MGMT_ASSOC_PEER); 800e6d64284SPrameela Rani Garnepudi rsi_send_rx_filter_frame(common, rx_filter_word); 801e6d64284SPrameela Rani Garnepudi } 802dad0d04fSFariya Fatima rsi_inform_bss_status(common, 803b8bd3a43SPrameela Rani Garnepudi RSI_OPMODE_STA, 804dad0d04fSFariya Fatima bss_conf->assoc, 805dad0d04fSFariya Fatima bss_conf->bssid, 806dad0d04fSFariya Fatima bss_conf->qos, 8073528608fSPrameela Rani Garnepudi bss_conf->aid, 8084fd6c476SPrameela Rani Garnepudi NULL, 0, 8094fd6c476SPrameela Rani Garnepudi bss_conf->assoc_capability, vif); 810ce86893fSKarun Eagalapati adapter->ps_info.dtim_interval_duration = bss->dtim_period; 811ce86893fSKarun Eagalapati adapter->ps_info.listen_interval = conf->listen_interval; 812db07971dSKarun Eagalapati 813db07971dSKarun Eagalapati /* If U-APSD is updated, send ps parameters to firmware */ 814db07971dSKarun Eagalapati if (bss->assoc) { 815db07971dSKarun Eagalapati if (common->uapsd_bitmap) { 816db07971dSKarun Eagalapati rsi_dbg(INFO_ZONE, "Configuring UAPSD\n"); 817efe877aaSPrameela Rani Garnepudi rsi_conf_uapsd(adapter, vif); 818db07971dSKarun Eagalapati } 819db07971dSKarun Eagalapati } else { 820db07971dSKarun Eagalapati common->uapsd_bitmap = 0; 821db07971dSKarun Eagalapati } 822dad0d04fSFariya Fatima } 823686a2541SJahnavi Meher 824686a2541SJahnavi Meher if (changed & BSS_CHANGED_CQM) { 825686a2541SJahnavi Meher common->cqm_info.last_cqm_event_rssi = 0; 826686a2541SJahnavi Meher common->cqm_info.rssi_thold = bss_conf->cqm_rssi_thold; 827686a2541SJahnavi Meher common->cqm_info.rssi_hyst = bss_conf->cqm_rssi_hyst; 828686a2541SJahnavi Meher rsi_dbg(INFO_ZONE, "RSSI throld & hysteresis are: %d %d\n", 829686a2541SJahnavi Meher common->cqm_info.rssi_thold, 830686a2541SJahnavi Meher common->cqm_info.rssi_hyst); 831686a2541SJahnavi Meher } 832d26a9559SPrameela Rani Garnepudi 833d26a9559SPrameela Rani Garnepudi if ((changed & BSS_CHANGED_BEACON_ENABLED) && 834af756872SPrameela Rani Garnepudi ((vif->type == NL80211_IFTYPE_AP) || 835af756872SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO))) { 836d26a9559SPrameela Rani Garnepudi if (bss->enable_beacon) { 837d26a9559SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "===> BEACON ENABLED <===\n"); 838d26a9559SPrameela Rani Garnepudi common->beacon_enabled = 1; 839d26a9559SPrameela Rani Garnepudi } else { 840d26a9559SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "===> BEACON DISABLED <===\n"); 841d26a9559SPrameela Rani Garnepudi common->beacon_enabled = 0; 842d26a9559SPrameela Rani Garnepudi } 843d26a9559SPrameela Rani Garnepudi } 844d26a9559SPrameela Rani Garnepudi 845dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 846dad0d04fSFariya Fatima } 847dad0d04fSFariya Fatima 848dad0d04fSFariya Fatima /** 849dad0d04fSFariya Fatima * rsi_mac80211_conf_filter() - This function configure the device's RX filter. 850dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 851dad0d04fSFariya Fatima * @changed: Changed flags set. 852dad0d04fSFariya Fatima * @total_flags: Total initial flags set. 853dad0d04fSFariya Fatima * @multicast: Multicast. 854dad0d04fSFariya Fatima * 855dad0d04fSFariya Fatima * Return: None. 856dad0d04fSFariya Fatima */ 857dad0d04fSFariya Fatima static void rsi_mac80211_conf_filter(struct ieee80211_hw *hw, 858dad0d04fSFariya Fatima u32 changed_flags, 859dad0d04fSFariya Fatima u32 *total_flags, 860dad0d04fSFariya Fatima u64 multicast) 861dad0d04fSFariya Fatima { 862dad0d04fSFariya Fatima /* Not doing much here as of now */ 863dad0d04fSFariya Fatima *total_flags &= RSI_SUPP_FILTERS; 864dad0d04fSFariya Fatima } 865dad0d04fSFariya Fatima 866dad0d04fSFariya Fatima /** 867dad0d04fSFariya Fatima * rsi_mac80211_conf_tx() - This function configures TX queue parameters 868dad0d04fSFariya Fatima * (EDCF (aifs, cw_min, cw_max), bursting) 869dad0d04fSFariya Fatima * for a hardware TX queue. 870dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure 871dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 872dad0d04fSFariya Fatima * @queue: Queue number. 873dad0d04fSFariya Fatima * @params: Pointer to ieee80211_tx_queue_params structure. 874dad0d04fSFariya Fatima * 875dad0d04fSFariya Fatima * Return: 0 on success, negative error code on failure. 876dad0d04fSFariya Fatima */ 877dad0d04fSFariya Fatima static int rsi_mac80211_conf_tx(struct ieee80211_hw *hw, 878dad0d04fSFariya Fatima struct ieee80211_vif *vif, u16 queue, 879dad0d04fSFariya Fatima const struct ieee80211_tx_queue_params *params) 880dad0d04fSFariya Fatima { 881dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 882dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 883dad0d04fSFariya Fatima u8 idx = 0; 884dad0d04fSFariya Fatima 885dad0d04fSFariya Fatima if (queue >= IEEE80211_NUM_ACS) 886dad0d04fSFariya Fatima return 0; 887dad0d04fSFariya Fatima 888dad0d04fSFariya Fatima rsi_dbg(INFO_ZONE, 889dad0d04fSFariya Fatima "%s: Conf queue %d, aifs: %d, cwmin: %d cwmax: %d, txop: %d\n", 890dad0d04fSFariya Fatima __func__, queue, params->aifs, 891dad0d04fSFariya Fatima params->cw_min, params->cw_max, params->txop); 892dad0d04fSFariya Fatima 893dad0d04fSFariya Fatima mutex_lock(&common->mutex); 894dad0d04fSFariya Fatima /* Map into the way the f/w expects */ 895dad0d04fSFariya Fatima switch (queue) { 896dad0d04fSFariya Fatima case IEEE80211_AC_VO: 897dad0d04fSFariya Fatima idx = VO_Q; 898dad0d04fSFariya Fatima break; 899dad0d04fSFariya Fatima case IEEE80211_AC_VI: 900dad0d04fSFariya Fatima idx = VI_Q; 901dad0d04fSFariya Fatima break; 902dad0d04fSFariya Fatima case IEEE80211_AC_BE: 903dad0d04fSFariya Fatima idx = BE_Q; 904dad0d04fSFariya Fatima break; 905dad0d04fSFariya Fatima case IEEE80211_AC_BK: 906dad0d04fSFariya Fatima idx = BK_Q; 907dad0d04fSFariya Fatima break; 908dad0d04fSFariya Fatima default: 909dad0d04fSFariya Fatima idx = BE_Q; 910dad0d04fSFariya Fatima break; 911dad0d04fSFariya Fatima } 912dad0d04fSFariya Fatima 913dad0d04fSFariya Fatima memcpy(&common->edca_params[idx], 914dad0d04fSFariya Fatima params, 915dad0d04fSFariya Fatima sizeof(struct ieee80211_tx_queue_params)); 916db07971dSKarun Eagalapati 917db07971dSKarun Eagalapati if (params->uapsd) 918db07971dSKarun Eagalapati common->uapsd_bitmap |= idx; 919db07971dSKarun Eagalapati else 920db07971dSKarun Eagalapati common->uapsd_bitmap &= (~idx); 921db07971dSKarun Eagalapati 922dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 923dad0d04fSFariya Fatima 924dad0d04fSFariya Fatima return 0; 925dad0d04fSFariya Fatima } 926dad0d04fSFariya Fatima 927dad0d04fSFariya Fatima /** 928dad0d04fSFariya Fatima * rsi_hal_key_config() - This function loads the keys into the firmware. 929dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 930dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 931dad0d04fSFariya Fatima * @key: Pointer to the ieee80211_key_conf structure. 932dad0d04fSFariya Fatima * 933fc438672SDan Carpenter * Return: status: 0 on success, negative error codes on failure. 934dad0d04fSFariya Fatima */ 935dad0d04fSFariya Fatima static int rsi_hal_key_config(struct ieee80211_hw *hw, 936dad0d04fSFariya Fatima struct ieee80211_vif *vif, 93738ef6235SPrameela Rani Garnepudi struct ieee80211_key_conf *key, 93838ef6235SPrameela Rani Garnepudi struct ieee80211_sta *sta) 939dad0d04fSFariya Fatima { 940dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 94138ef6235SPrameela Rani Garnepudi struct rsi_sta *rsta = NULL; 942dad0d04fSFariya Fatima int status; 943dad0d04fSFariya Fatima u8 key_type; 94438ef6235SPrameela Rani Garnepudi s16 sta_id = 0; 945dad0d04fSFariya Fatima 946dad0d04fSFariya Fatima if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 947dad0d04fSFariya Fatima key_type = RSI_PAIRWISE_KEY; 948dad0d04fSFariya Fatima else 949dad0d04fSFariya Fatima key_type = RSI_GROUP_KEY; 950dad0d04fSFariya Fatima 951dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: Cipher 0x%x key_type: %d key_len: %d\n", 952dad0d04fSFariya Fatima __func__, key->cipher, key_type, key->keylen); 953dad0d04fSFariya Fatima 9544671c209SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_AP) || 9554671c209SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) { 95638ef6235SPrameela Rani Garnepudi if (sta) { 95738ef6235SPrameela Rani Garnepudi rsta = rsi_find_sta(adapter->priv, sta->addr); 95838ef6235SPrameela Rani Garnepudi if (rsta) 95938ef6235SPrameela Rani Garnepudi sta_id = rsta->sta_id; 96038ef6235SPrameela Rani Garnepudi } 96138ef6235SPrameela Rani Garnepudi adapter->priv->key = key; 96238ef6235SPrameela Rani Garnepudi } else { 963dad0d04fSFariya Fatima if ((key->cipher == WLAN_CIPHER_SUITE_WEP104) || 964dad0d04fSFariya Fatima (key->cipher == WLAN_CIPHER_SUITE_WEP40)) { 965dad0d04fSFariya Fatima status = rsi_hal_load_key(adapter->priv, 966dad0d04fSFariya Fatima key->key, 967dad0d04fSFariya Fatima key->keylen, 968dad0d04fSFariya Fatima RSI_PAIRWISE_KEY, 969dad0d04fSFariya Fatima key->keyidx, 97038ef6235SPrameela Rani Garnepudi key->cipher, 971eac4eed3SPrameela Rani Garnepudi sta_id, 972eac4eed3SPrameela Rani Garnepudi vif); 973dad0d04fSFariya Fatima if (status) 974dad0d04fSFariya Fatima return status; 975dad0d04fSFariya Fatima } 97638ef6235SPrameela Rani Garnepudi } 97738ef6235SPrameela Rani Garnepudi 978e1fd7ceeSGustavo A. R. Silva status = rsi_hal_load_key(adapter->priv, 979dad0d04fSFariya Fatima key->key, 980dad0d04fSFariya Fatima key->keylen, 981dad0d04fSFariya Fatima key_type, 982dad0d04fSFariya Fatima key->keyidx, 98338ef6235SPrameela Rani Garnepudi key->cipher, 984eac4eed3SPrameela Rani Garnepudi sta_id, 985eac4eed3SPrameela Rani Garnepudi vif); 9864fd6c476SPrameela Rani Garnepudi if (status) 9874fd6c476SPrameela Rani Garnepudi return status; 9884fd6c476SPrameela Rani Garnepudi 989f613e480SNathan Chancellor if (vif->type == NL80211_IFTYPE_STATION && 9904fd6c476SPrameela Rani Garnepudi (key->cipher == WLAN_CIPHER_SUITE_WEP104 || 9914fd6c476SPrameela Rani Garnepudi key->cipher == WLAN_CIPHER_SUITE_WEP40)) { 9924fd6c476SPrameela Rani Garnepudi if (!rsi_send_block_unblock_frame(adapter->priv, false)) 9934fd6c476SPrameela Rani Garnepudi adapter->priv->hw_data_qs_blocked = false; 9944fd6c476SPrameela Rani Garnepudi } 9954fd6c476SPrameela Rani Garnepudi 9964fd6c476SPrameela Rani Garnepudi return 0; 997dad0d04fSFariya Fatima } 998dad0d04fSFariya Fatima 999dad0d04fSFariya Fatima /** 1000dad0d04fSFariya Fatima * rsi_mac80211_set_key() - This function sets type of key to be loaded. 1001dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 1002dad0d04fSFariya Fatima * @cmd: enum set_key_cmd. 1003dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 1004dad0d04fSFariya Fatima * @sta: Pointer to the ieee80211_sta structure. 1005dad0d04fSFariya Fatima * @key: Pointer to the ieee80211_key_conf structure. 1006dad0d04fSFariya Fatima * 1007dad0d04fSFariya Fatima * Return: status: 0 on success, negative error code on failure. 1008dad0d04fSFariya Fatima */ 1009dad0d04fSFariya Fatima static int rsi_mac80211_set_key(struct ieee80211_hw *hw, 1010dad0d04fSFariya Fatima enum set_key_cmd cmd, 1011dad0d04fSFariya Fatima struct ieee80211_vif *vif, 1012dad0d04fSFariya Fatima struct ieee80211_sta *sta, 1013dad0d04fSFariya Fatima struct ieee80211_key_conf *key) 1014dad0d04fSFariya Fatima { 1015dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 1016dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 1017dad0d04fSFariya Fatima struct security_info *secinfo = &common->secinfo; 1018dad0d04fSFariya Fatima int status; 1019dad0d04fSFariya Fatima 1020dad0d04fSFariya Fatima mutex_lock(&common->mutex); 1021dad0d04fSFariya Fatima switch (cmd) { 1022dad0d04fSFariya Fatima case SET_KEY: 1023dad0d04fSFariya Fatima secinfo->security_enable = true; 102438ef6235SPrameela Rani Garnepudi status = rsi_hal_key_config(hw, vif, key, sta); 1025dad0d04fSFariya Fatima if (status) { 1026dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 1027dad0d04fSFariya Fatima return status; 1028dad0d04fSFariya Fatima } 1029dad0d04fSFariya Fatima 1030dad0d04fSFariya Fatima if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 1031dad0d04fSFariya Fatima secinfo->ptk_cipher = key->cipher; 1032dad0d04fSFariya Fatima else 1033dad0d04fSFariya Fatima secinfo->gtk_cipher = key->cipher; 1034dad0d04fSFariya Fatima 1035dad0d04fSFariya Fatima key->hw_key_idx = key->keyidx; 1036dad0d04fSFariya Fatima key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; 1037dad0d04fSFariya Fatima 1038dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: RSI set_key\n", __func__); 1039dad0d04fSFariya Fatima break; 1040dad0d04fSFariya Fatima 1041dad0d04fSFariya Fatima case DISABLE_KEY: 104238ef6235SPrameela Rani Garnepudi if (vif->type == NL80211_IFTYPE_STATION) 1043dad0d04fSFariya Fatima secinfo->security_enable = false; 1044dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: RSI del key\n", __func__); 1045dad0d04fSFariya Fatima memset(key, 0, sizeof(struct ieee80211_key_conf)); 104638ef6235SPrameela Rani Garnepudi status = rsi_hal_key_config(hw, vif, key, sta); 1047dad0d04fSFariya Fatima break; 1048dad0d04fSFariya Fatima 1049dad0d04fSFariya Fatima default: 1050dad0d04fSFariya Fatima status = -EOPNOTSUPP; 1051dad0d04fSFariya Fatima break; 1052dad0d04fSFariya Fatima } 1053dad0d04fSFariya Fatima 1054dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 1055dad0d04fSFariya Fatima return status; 1056dad0d04fSFariya Fatima } 1057dad0d04fSFariya Fatima 1058dad0d04fSFariya Fatima /** 1059dad0d04fSFariya Fatima * rsi_mac80211_ampdu_action() - This function selects the AMPDU action for 1060dad0d04fSFariya Fatima * the corresponding mlme_action flag and 1061dad0d04fSFariya Fatima * informs the f/w regarding this. 1062dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 1063dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 106450ea05efSSara Sharon * @params: Pointer to A-MPDU action parameters 1065dad0d04fSFariya Fatima * 1066dad0d04fSFariya Fatima * Return: status: 0 on success, negative error code on failure. 1067dad0d04fSFariya Fatima */ 1068dad0d04fSFariya Fatima static int rsi_mac80211_ampdu_action(struct ieee80211_hw *hw, 1069dad0d04fSFariya Fatima struct ieee80211_vif *vif, 107050ea05efSSara Sharon struct ieee80211_ampdu_params *params) 1071dad0d04fSFariya Fatima { 1072dad0d04fSFariya Fatima int status = -EOPNOTSUPP; 1073dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 1074dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 107532be57a6SPrameela Rani Garnepudi struct rsi_sta *rsta = NULL; 107632be57a6SPrameela Rani Garnepudi u16 seq_no = 0, seq_start = 0; 1077dad0d04fSFariya Fatima u8 ii = 0; 107850ea05efSSara Sharon struct ieee80211_sta *sta = params->sta; 107932be57a6SPrameela Rani Garnepudi u8 sta_id = 0; 108050ea05efSSara Sharon enum ieee80211_ampdu_mlme_action action = params->action; 108150ea05efSSara Sharon u16 tid = params->tid; 108250ea05efSSara Sharon u16 *ssn = ¶ms->ssn; 108350ea05efSSara Sharon u8 buf_size = params->buf_size; 1084dad0d04fSFariya Fatima 1085dad0d04fSFariya Fatima for (ii = 0; ii < RSI_MAX_VIFS; ii++) { 1086dad0d04fSFariya Fatima if (vif == adapter->vifs[ii]) 1087dad0d04fSFariya Fatima break; 1088dad0d04fSFariya Fatima } 1089dad0d04fSFariya Fatima 1090dad0d04fSFariya Fatima mutex_lock(&common->mutex); 109132be57a6SPrameela Rani Garnepudi 1092dad0d04fSFariya Fatima if (ssn != NULL) 1093dad0d04fSFariya Fatima seq_no = *ssn; 1094dad0d04fSFariya Fatima 1095c7245c09SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_AP) || 1096c7245c09SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) { 109732be57a6SPrameela Rani Garnepudi rsta = rsi_find_sta(common, sta->addr); 109832be57a6SPrameela Rani Garnepudi if (!rsta) { 109932be57a6SPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "No station mapped\n"); 11000270639eSDan Carpenter status = 0; 11010270639eSDan Carpenter goto unlock; 110232be57a6SPrameela Rani Garnepudi } 110332be57a6SPrameela Rani Garnepudi sta_id = rsta->sta_id; 110432be57a6SPrameela Rani Garnepudi } 110532be57a6SPrameela Rani Garnepudi 110632be57a6SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, 110732be57a6SPrameela Rani Garnepudi "%s: AMPDU action tid=%d ssn=0x%x, buf_size=%d sta_id=%d\n", 110832be57a6SPrameela Rani Garnepudi __func__, tid, seq_no, buf_size, sta_id); 110932be57a6SPrameela Rani Garnepudi 1110dad0d04fSFariya Fatima switch (action) { 1111dad0d04fSFariya Fatima case IEEE80211_AMPDU_RX_START: 1112dad0d04fSFariya Fatima status = rsi_send_aggregation_params_frame(common, 1113dad0d04fSFariya Fatima tid, 1114dad0d04fSFariya Fatima seq_no, 1115dad0d04fSFariya Fatima buf_size, 111632be57a6SPrameela Rani Garnepudi STA_RX_ADDBA_DONE, 111732be57a6SPrameela Rani Garnepudi sta_id); 1118dad0d04fSFariya Fatima break; 1119dad0d04fSFariya Fatima 1120dad0d04fSFariya Fatima case IEEE80211_AMPDU_RX_STOP: 1121dad0d04fSFariya Fatima status = rsi_send_aggregation_params_frame(common, 1122dad0d04fSFariya Fatima tid, 1123dad0d04fSFariya Fatima 0, 1124dad0d04fSFariya Fatima buf_size, 112532be57a6SPrameela Rani Garnepudi STA_RX_DELBA, 112632be57a6SPrameela Rani Garnepudi sta_id); 1127dad0d04fSFariya Fatima break; 1128dad0d04fSFariya Fatima 1129dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_START: 1130c7245c09SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_STATION) || 1131c7245c09SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_CLIENT)) 1132dad0d04fSFariya Fatima common->vif_info[ii].seq_start = seq_no; 1133c7245c09SPrameela Rani Garnepudi else if ((vif->type == NL80211_IFTYPE_AP) || 1134c7245c09SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) 113532be57a6SPrameela Rani Garnepudi rsta->seq_start[tid] = seq_no; 1136dad0d04fSFariya Fatima ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); 11375f407acbSJahnavi Meher status = 0; 1138dad0d04fSFariya Fatima break; 1139dad0d04fSFariya Fatima 1140dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_STOP_CONT: 1141dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_STOP_FLUSH: 1142dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1143dad0d04fSFariya Fatima status = rsi_send_aggregation_params_frame(common, 1144dad0d04fSFariya Fatima tid, 1145dad0d04fSFariya Fatima seq_no, 1146dad0d04fSFariya Fatima buf_size, 114732be57a6SPrameela Rani Garnepudi STA_TX_DELBA, 114832be57a6SPrameela Rani Garnepudi sta_id); 1149dad0d04fSFariya Fatima if (!status) 1150dad0d04fSFariya Fatima ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 1151dad0d04fSFariya Fatima break; 1152dad0d04fSFariya Fatima 1153dad0d04fSFariya Fatima case IEEE80211_AMPDU_TX_OPERATIONAL: 1154c7245c09SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_STATION) || 1155c7245c09SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_CLIENT)) 115632be57a6SPrameela Rani Garnepudi seq_start = common->vif_info[ii].seq_start; 1157c7245c09SPrameela Rani Garnepudi else if ((vif->type == NL80211_IFTYPE_AP) || 1158c7245c09SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) 115932be57a6SPrameela Rani Garnepudi seq_start = rsta->seq_start[tid]; 1160dad0d04fSFariya Fatima status = rsi_send_aggregation_params_frame(common, 1161dad0d04fSFariya Fatima tid, 116232be57a6SPrameela Rani Garnepudi seq_start, 1163dad0d04fSFariya Fatima buf_size, 116432be57a6SPrameela Rani Garnepudi STA_TX_ADDBA_DONE, 116532be57a6SPrameela Rani Garnepudi sta_id); 1166dad0d04fSFariya Fatima break; 1167dad0d04fSFariya Fatima 1168dad0d04fSFariya Fatima default: 1169a53e8f3eSColin Ian King rsi_dbg(ERR_ZONE, "%s: Unknown AMPDU action\n", __func__); 1170dad0d04fSFariya Fatima break; 1171dad0d04fSFariya Fatima } 1172dad0d04fSFariya Fatima 11730270639eSDan Carpenter unlock: 1174dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 1175dad0d04fSFariya Fatima return status; 1176dad0d04fSFariya Fatima } 1177dad0d04fSFariya Fatima 1178dad0d04fSFariya Fatima /** 1179dad0d04fSFariya Fatima * rsi_mac80211_set_rts_threshold() - This function sets rts threshold value. 1180dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 1181dad0d04fSFariya Fatima * @value: Rts threshold value. 1182dad0d04fSFariya Fatima * 1183dad0d04fSFariya Fatima * Return: 0 on success. 1184dad0d04fSFariya Fatima */ 1185dad0d04fSFariya Fatima static int rsi_mac80211_set_rts_threshold(struct ieee80211_hw *hw, 1186dad0d04fSFariya Fatima u32 value) 1187dad0d04fSFariya Fatima { 1188dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 1189dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 1190dad0d04fSFariya Fatima 1191dad0d04fSFariya Fatima mutex_lock(&common->mutex); 1192dad0d04fSFariya Fatima common->rts_threshold = value; 1193dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 1194dad0d04fSFariya Fatima 1195dad0d04fSFariya Fatima return 0; 1196dad0d04fSFariya Fatima } 1197dad0d04fSFariya Fatima 1198dad0d04fSFariya Fatima /** 1199dad0d04fSFariya Fatima * rsi_mac80211_set_rate_mask() - This function sets bitrate_mask to be used. 1200dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure 1201dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 1202dad0d04fSFariya Fatima * @mask: Pointer to the cfg80211_bitrate_mask structure. 1203dad0d04fSFariya Fatima * 1204dad0d04fSFariya Fatima * Return: 0 on success. 1205dad0d04fSFariya Fatima */ 1206dad0d04fSFariya Fatima static int rsi_mac80211_set_rate_mask(struct ieee80211_hw *hw, 1207dad0d04fSFariya Fatima struct ieee80211_vif *vif, 1208dad0d04fSFariya Fatima const struct cfg80211_bitrate_mask *mask) 1209dad0d04fSFariya Fatima { 1210dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 1211dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 121257fbcce3SJohannes Berg enum nl80211_band band = hw->conf.chandef.chan->band; 1213dad0d04fSFariya Fatima 1214dad0d04fSFariya Fatima mutex_lock(&common->mutex); 121585af5bf8SJahnavi Meher common->fixedrate_mask[band] = 0; 1216dad0d04fSFariya Fatima 121785af5bf8SJahnavi Meher if (mask->control[band].legacy == 0xfff) { 121885af5bf8SJahnavi Meher common->fixedrate_mask[band] = 121985af5bf8SJahnavi Meher (mask->control[band].ht_mcs[0] << 12); 1220dad0d04fSFariya Fatima } else { 122185af5bf8SJahnavi Meher common->fixedrate_mask[band] = 122285af5bf8SJahnavi Meher mask->control[band].legacy; 1223dad0d04fSFariya Fatima } 1224dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 1225dad0d04fSFariya Fatima 1226dad0d04fSFariya Fatima return 0; 1227dad0d04fSFariya Fatima } 1228dad0d04fSFariya Fatima 1229dad0d04fSFariya Fatima /** 1230686a2541SJahnavi Meher * rsi_perform_cqm() - This function performs cqm. 1231686a2541SJahnavi Meher * @common: Pointer to the driver private structure. 1232686a2541SJahnavi Meher * @bssid: pointer to the bssid. 1233686a2541SJahnavi Meher * @rssi: RSSI value. 1234686a2541SJahnavi Meher */ 1235686a2541SJahnavi Meher static void rsi_perform_cqm(struct rsi_common *common, 1236686a2541SJahnavi Meher u8 *bssid, 1237af756872SPrameela Rani Garnepudi s8 rssi, 1238af756872SPrameela Rani Garnepudi struct ieee80211_vif *vif) 1239686a2541SJahnavi Meher { 1240686a2541SJahnavi Meher s8 last_event = common->cqm_info.last_cqm_event_rssi; 1241686a2541SJahnavi Meher int thold = common->cqm_info.rssi_thold; 1242686a2541SJahnavi Meher u32 hyst = common->cqm_info.rssi_hyst; 1243686a2541SJahnavi Meher enum nl80211_cqm_rssi_threshold_event event; 1244686a2541SJahnavi Meher 1245686a2541SJahnavi Meher if (rssi < thold && (last_event == 0 || rssi < (last_event - hyst))) 1246686a2541SJahnavi Meher event = NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW; 1247686a2541SJahnavi Meher else if (rssi > thold && 1248686a2541SJahnavi Meher (last_event == 0 || rssi > (last_event + hyst))) 1249686a2541SJahnavi Meher event = NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH; 1250686a2541SJahnavi Meher else 1251686a2541SJahnavi Meher return; 1252686a2541SJahnavi Meher 1253686a2541SJahnavi Meher common->cqm_info.last_cqm_event_rssi = rssi; 1254686a2541SJahnavi Meher rsi_dbg(INFO_ZONE, "CQM: Notifying event: %d\n", event); 1255af756872SPrameela Rani Garnepudi ieee80211_cqm_rssi_notify(vif, event, rssi, GFP_KERNEL); 1256686a2541SJahnavi Meher 1257686a2541SJahnavi Meher return; 1258686a2541SJahnavi Meher } 1259686a2541SJahnavi Meher 1260686a2541SJahnavi Meher /** 1261dad0d04fSFariya Fatima * rsi_fill_rx_status() - This function fills rx status in 1262dad0d04fSFariya Fatima * ieee80211_rx_status structure. 1263dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 1264dad0d04fSFariya Fatima * @skb: Pointer to the socket buffer structure. 1265dad0d04fSFariya Fatima * @common: Pointer to the driver private structure. 1266dad0d04fSFariya Fatima * @rxs: Pointer to the ieee80211_rx_status structure. 1267dad0d04fSFariya Fatima * 1268dad0d04fSFariya Fatima * Return: None. 1269dad0d04fSFariya Fatima */ 1270dad0d04fSFariya Fatima static void rsi_fill_rx_status(struct ieee80211_hw *hw, 1271dad0d04fSFariya Fatima struct sk_buff *skb, 1272dad0d04fSFariya Fatima struct rsi_common *common, 1273dad0d04fSFariya Fatima struct ieee80211_rx_status *rxs) 1274dad0d04fSFariya Fatima { 1275eac4eed3SPrameela Rani Garnepudi struct rsi_hw *adapter = common->priv; 1276eac4eed3SPrameela Rani Garnepudi struct ieee80211_vif *vif; 1277eac4eed3SPrameela Rani Garnepudi struct ieee80211_bss_conf *bss = NULL; 1278dad0d04fSFariya Fatima struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 1279dad0d04fSFariya Fatima struct skb_info *rx_params = (struct skb_info *)info->driver_data; 1280dad0d04fSFariya Fatima struct ieee80211_hdr *hdr; 1281dad0d04fSFariya Fatima char rssi = rx_params->rssi; 1282dad0d04fSFariya Fatima u8 hdrlen = 0; 1283dad0d04fSFariya Fatima u8 channel = rx_params->channel; 1284dad0d04fSFariya Fatima s32 freq; 1285eac4eed3SPrameela Rani Garnepudi int i; 1286dad0d04fSFariya Fatima 1287dad0d04fSFariya Fatima hdr = ((struct ieee80211_hdr *)(skb->data)); 1288dad0d04fSFariya Fatima hdrlen = ieee80211_hdrlen(hdr->frame_control); 1289dad0d04fSFariya Fatima 1290dad0d04fSFariya Fatima memset(info, 0, sizeof(struct ieee80211_tx_info)); 1291dad0d04fSFariya Fatima 1292dad0d04fSFariya Fatima rxs->signal = -(rssi); 1293dad0d04fSFariya Fatima 1294aabd3ad4SJahnavi Meher rxs->band = common->band; 1295dad0d04fSFariya Fatima 1296dad0d04fSFariya Fatima freq = ieee80211_channel_to_frequency(channel, rxs->band); 1297dad0d04fSFariya Fatima 1298dad0d04fSFariya Fatima if (freq) 1299dad0d04fSFariya Fatima rxs->freq = freq; 1300dad0d04fSFariya Fatima 1301dad0d04fSFariya Fatima if (ieee80211_has_protected(hdr->frame_control)) { 1302dad0d04fSFariya Fatima if (rsi_is_cipher_wep(common)) { 1303dad0d04fSFariya Fatima memmove(skb->data + 4, skb->data, hdrlen); 1304dad0d04fSFariya Fatima skb_pull(skb, 4); 1305dad0d04fSFariya Fatima } else { 1306dad0d04fSFariya Fatima memmove(skb->data + 8, skb->data, hdrlen); 1307dad0d04fSFariya Fatima skb_pull(skb, 8); 1308dad0d04fSFariya Fatima rxs->flag |= RX_FLAG_MMIC_STRIPPED; 1309dad0d04fSFariya Fatima } 1310dad0d04fSFariya Fatima rxs->flag |= RX_FLAG_DECRYPTED; 1311dad0d04fSFariya Fatima rxs->flag |= RX_FLAG_IV_STRIPPED; 1312dad0d04fSFariya Fatima } 1313686a2541SJahnavi Meher 1314eac4eed3SPrameela Rani Garnepudi for (i = 0; i < RSI_MAX_VIFS; i++) { 1315eac4eed3SPrameela Rani Garnepudi vif = adapter->vifs[i]; 1316eac4eed3SPrameela Rani Garnepudi if (!vif) 1317eac4eed3SPrameela Rani Garnepudi continue; 1318af756872SPrameela Rani Garnepudi if (vif->type == NL80211_IFTYPE_STATION) { 1319eac4eed3SPrameela Rani Garnepudi bss = &vif->bss_conf; 1320af756872SPrameela Rani Garnepudi break; 1321af756872SPrameela Rani Garnepudi } 1322eac4eed3SPrameela Rani Garnepudi } 1323eac4eed3SPrameela Rani Garnepudi if (!bss) 1324eac4eed3SPrameela Rani Garnepudi return; 1325686a2541SJahnavi Meher /* CQM only for connected AP beacons, the RSSI is a weighted avg */ 1326686a2541SJahnavi Meher if (bss->assoc && !(memcmp(bss->bssid, hdr->addr2, ETH_ALEN))) { 1327686a2541SJahnavi Meher if (ieee80211_is_beacon(hdr->frame_control)) 1328af756872SPrameela Rani Garnepudi rsi_perform_cqm(common, hdr->addr2, rxs->signal, vif); 1329686a2541SJahnavi Meher } 1330686a2541SJahnavi Meher 1331686a2541SJahnavi Meher return; 1332dad0d04fSFariya Fatima } 1333dad0d04fSFariya Fatima 1334dad0d04fSFariya Fatima /** 1335dad0d04fSFariya Fatima * rsi_indicate_pkt_to_os() - This function sends recieved packet to mac80211. 1336dad0d04fSFariya Fatima * @common: Pointer to the driver private structure. 1337dad0d04fSFariya Fatima * @skb: Pointer to the socket buffer structure. 1338dad0d04fSFariya Fatima * 1339dad0d04fSFariya Fatima * Return: None. 1340dad0d04fSFariya Fatima */ 1341dad0d04fSFariya Fatima void rsi_indicate_pkt_to_os(struct rsi_common *common, 1342dad0d04fSFariya Fatima struct sk_buff *skb) 1343dad0d04fSFariya Fatima { 1344dad0d04fSFariya Fatima struct rsi_hw *adapter = common->priv; 1345dad0d04fSFariya Fatima struct ieee80211_hw *hw = adapter->hw; 1346dad0d04fSFariya Fatima struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb); 1347dad0d04fSFariya Fatima 1348dad0d04fSFariya Fatima if ((common->iface_down) || (!adapter->sc_nvifs)) { 1349dad0d04fSFariya Fatima dev_kfree_skb(skb); 1350dad0d04fSFariya Fatima return; 1351dad0d04fSFariya Fatima } 1352dad0d04fSFariya Fatima 1353dad0d04fSFariya Fatima /* filling in the ieee80211_rx_status flags */ 1354dad0d04fSFariya Fatima rsi_fill_rx_status(hw, skb, common, rx_status); 1355dad0d04fSFariya Fatima 1356dad0d04fSFariya Fatima ieee80211_rx_irqsafe(hw, skb); 1357dad0d04fSFariya Fatima } 1358dad0d04fSFariya Fatima 1359dad0d04fSFariya Fatima static void rsi_set_min_rate(struct ieee80211_hw *hw, 1360dad0d04fSFariya Fatima struct ieee80211_sta *sta, 1361dad0d04fSFariya Fatima struct rsi_common *common) 1362dad0d04fSFariya Fatima { 1363dad0d04fSFariya Fatima u8 band = hw->conf.chandef.chan->band; 1364dad0d04fSFariya Fatima u8 ii; 1365dad0d04fSFariya Fatima u32 rate_bitmap; 1366dad0d04fSFariya Fatima bool matched = false; 1367dad0d04fSFariya Fatima 1368dad0d04fSFariya Fatima common->bitrate_mask[band] = sta->supp_rates[band]; 1369dad0d04fSFariya Fatima 1370dad0d04fSFariya Fatima rate_bitmap = (common->fixedrate_mask[band] & sta->supp_rates[band]); 1371dad0d04fSFariya Fatima 1372dad0d04fSFariya Fatima if (rate_bitmap & 0xfff) { 1373dad0d04fSFariya Fatima /* Find out the min rate */ 1374dad0d04fSFariya Fatima for (ii = 0; ii < ARRAY_SIZE(rsi_rates); ii++) { 1375dad0d04fSFariya Fatima if (rate_bitmap & BIT(ii)) { 1376dad0d04fSFariya Fatima common->min_rate = rsi_rates[ii].hw_value; 1377dad0d04fSFariya Fatima matched = true; 1378dad0d04fSFariya Fatima break; 1379dad0d04fSFariya Fatima } 1380dad0d04fSFariya Fatima } 1381dad0d04fSFariya Fatima } 1382dad0d04fSFariya Fatima 1383dad0d04fSFariya Fatima common->vif_info[0].is_ht = sta->ht_cap.ht_supported; 1384dad0d04fSFariya Fatima 1385dad0d04fSFariya Fatima if ((common->vif_info[0].is_ht) && (rate_bitmap >> 12)) { 1386dad0d04fSFariya Fatima for (ii = 0; ii < ARRAY_SIZE(rsi_mcsrates); ii++) { 1387dad0d04fSFariya Fatima if ((rate_bitmap >> 12) & BIT(ii)) { 1388dad0d04fSFariya Fatima common->min_rate = rsi_mcsrates[ii]; 1389dad0d04fSFariya Fatima matched = true; 1390dad0d04fSFariya Fatima break; 1391dad0d04fSFariya Fatima } 1392dad0d04fSFariya Fatima } 1393dad0d04fSFariya Fatima } 1394dad0d04fSFariya Fatima 1395dad0d04fSFariya Fatima if (!matched) 1396dad0d04fSFariya Fatima common->min_rate = 0xffff; 1397dad0d04fSFariya Fatima } 1398dad0d04fSFariya Fatima 1399dad0d04fSFariya Fatima /** 1400dad0d04fSFariya Fatima * rsi_mac80211_sta_add() - This function notifies driver about a peer getting 1401dad0d04fSFariya Fatima * connected. 1402dad0d04fSFariya Fatima * @hw: pointer to the ieee80211_hw structure. 1403dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 1404dad0d04fSFariya Fatima * @sta: Pointer to the ieee80211_sta structure. 1405dad0d04fSFariya Fatima * 1406fc438672SDan Carpenter * Return: 0 on success, negative error codes on failure. 1407dad0d04fSFariya Fatima */ 1408dad0d04fSFariya Fatima static int rsi_mac80211_sta_add(struct ieee80211_hw *hw, 1409dad0d04fSFariya Fatima struct ieee80211_vif *vif, 1410dad0d04fSFariya Fatima struct ieee80211_sta *sta) 1411dad0d04fSFariya Fatima { 1412dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 1413dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 14143528608fSPrameela Rani Garnepudi bool sta_exist = false; 14153528608fSPrameela Rani Garnepudi struct rsi_sta *rsta; 14160270639eSDan Carpenter int status = 0; 14173528608fSPrameela Rani Garnepudi 14183528608fSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Station Add: %pM\n", sta->addr); 1419dad0d04fSFariya Fatima 1420dad0d04fSFariya Fatima mutex_lock(&common->mutex); 1421dad0d04fSFariya Fatima 14224671c209SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_AP) || 14234671c209SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) { 14243528608fSPrameela Rani Garnepudi u8 cnt; 14253528608fSPrameela Rani Garnepudi int sta_idx = -1; 14263528608fSPrameela Rani Garnepudi int free_index = -1; 1427dad0d04fSFariya Fatima 14283528608fSPrameela Rani Garnepudi /* Check if max stations reached */ 14293528608fSPrameela Rani Garnepudi if (common->num_stations >= common->max_stations) { 14303528608fSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "Reject: Max Stations exists\n"); 14310270639eSDan Carpenter status = -EOPNOTSUPP; 14320270639eSDan Carpenter goto unlock; 14333528608fSPrameela Rani Garnepudi } 14343528608fSPrameela Rani Garnepudi for (cnt = 0; cnt < common->max_stations; cnt++) { 14353528608fSPrameela Rani Garnepudi rsta = &common->stations[cnt]; 14363528608fSPrameela Rani Garnepudi 14373528608fSPrameela Rani Garnepudi if (!rsta->sta) { 14383528608fSPrameela Rani Garnepudi if (free_index < 0) 14393528608fSPrameela Rani Garnepudi free_index = cnt; 14403528608fSPrameela Rani Garnepudi continue; 14413528608fSPrameela Rani Garnepudi } 14423528608fSPrameela Rani Garnepudi if (!memcmp(rsta->sta->addr, sta->addr, ETH_ALEN)) { 14433528608fSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Station exists\n"); 14443528608fSPrameela Rani Garnepudi sta_idx = cnt; 14453528608fSPrameela Rani Garnepudi sta_exist = true; 14463528608fSPrameela Rani Garnepudi break; 14473528608fSPrameela Rani Garnepudi } 14483528608fSPrameela Rani Garnepudi } 14493528608fSPrameela Rani Garnepudi if (!sta_exist) { 14503528608fSPrameela Rani Garnepudi if (free_index >= 0) 14513528608fSPrameela Rani Garnepudi sta_idx = free_index; 14523528608fSPrameela Rani Garnepudi } 14533528608fSPrameela Rani Garnepudi if (sta_idx < 0) { 14543528608fSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, 14553528608fSPrameela Rani Garnepudi "%s: Some problem reaching here...\n", 14563528608fSPrameela Rani Garnepudi __func__); 14570270639eSDan Carpenter status = -EINVAL; 14580270639eSDan Carpenter goto unlock; 14593528608fSPrameela Rani Garnepudi } 14603528608fSPrameela Rani Garnepudi rsta = &common->stations[sta_idx]; 14613528608fSPrameela Rani Garnepudi rsta->sta = sta; 14623528608fSPrameela Rani Garnepudi rsta->sta_id = sta_idx; 14633528608fSPrameela Rani Garnepudi for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++) 14643528608fSPrameela Rani Garnepudi rsta->start_tx_aggr[cnt] = false; 14653528608fSPrameela Rani Garnepudi for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++) 14663528608fSPrameela Rani Garnepudi rsta->seq_start[cnt] = 0; 14673528608fSPrameela Rani Garnepudi if (!sta_exist) { 14683528608fSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "New Station\n"); 14693528608fSPrameela Rani Garnepudi 14703528608fSPrameela Rani Garnepudi /* Send peer notify to device */ 14713528608fSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Indicate bss status to device\n"); 1472b8bd3a43SPrameela Rani Garnepudi rsi_inform_bss_status(common, RSI_OPMODE_AP, 1, 1473b8bd3a43SPrameela Rani Garnepudi sta->addr, sta->wme, sta->aid, 14744fd6c476SPrameela Rani Garnepudi sta, sta_idx, 0, vif); 14753528608fSPrameela Rani Garnepudi 147638ef6235SPrameela Rani Garnepudi if (common->key) { 147738ef6235SPrameela Rani Garnepudi struct ieee80211_key_conf *key = common->key; 147838ef6235SPrameela Rani Garnepudi 147938ef6235SPrameela Rani Garnepudi if ((key->cipher == WLAN_CIPHER_SUITE_WEP104) || 148038ef6235SPrameela Rani Garnepudi (key->cipher == WLAN_CIPHER_SUITE_WEP40)) 148138ef6235SPrameela Rani Garnepudi rsi_hal_load_key(adapter->priv, 148238ef6235SPrameela Rani Garnepudi key->key, 148338ef6235SPrameela Rani Garnepudi key->keylen, 148438ef6235SPrameela Rani Garnepudi RSI_PAIRWISE_KEY, 148538ef6235SPrameela Rani Garnepudi key->keyidx, 148638ef6235SPrameela Rani Garnepudi key->cipher, 1487eac4eed3SPrameela Rani Garnepudi sta_idx, 1488eac4eed3SPrameela Rani Garnepudi vif); 148938ef6235SPrameela Rani Garnepudi } 149038ef6235SPrameela Rani Garnepudi 14913528608fSPrameela Rani Garnepudi common->num_stations++; 14923528608fSPrameela Rani Garnepudi } 1493dad0d04fSFariya Fatima } 1494dad0d04fSFariya Fatima 14954671c209SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_STATION) || 14964671c209SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_CLIENT)) { 14973528608fSPrameela Rani Garnepudi rsi_set_min_rate(hw, sta, common); 14983528608fSPrameela Rani Garnepudi if (sta->ht_cap.ht_supported) { 14993528608fSPrameela Rani Garnepudi common->vif_info[0].is_ht = true; 15003528608fSPrameela Rani Garnepudi common->bitrate_mask[NL80211_BAND_2GHZ] = 15013528608fSPrameela Rani Garnepudi sta->supp_rates[NL80211_BAND_2GHZ]; 15023528608fSPrameela Rani Garnepudi if ((sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20) || 15033528608fSPrameela Rani Garnepudi (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40)) 15043528608fSPrameela Rani Garnepudi common->vif_info[0].sgi = true; 1505dad0d04fSFariya Fatima ieee80211_start_tx_ba_session(sta, 0, 0); 15063528608fSPrameela Rani Garnepudi } 15073528608fSPrameela Rani Garnepudi } 1508dad0d04fSFariya Fatima 15090270639eSDan Carpenter unlock: 1510dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 1511dad0d04fSFariya Fatima 15120270639eSDan Carpenter return status; 1513dad0d04fSFariya Fatima } 1514dad0d04fSFariya Fatima 1515dad0d04fSFariya Fatima /** 1516dad0d04fSFariya Fatima * rsi_mac80211_sta_remove() - This function notifies driver about a peer 1517dad0d04fSFariya Fatima * getting disconnected. 1518dad0d04fSFariya Fatima * @hw: Pointer to the ieee80211_hw structure. 1519dad0d04fSFariya Fatima * @vif: Pointer to the ieee80211_vif structure. 1520dad0d04fSFariya Fatima * @sta: Pointer to the ieee80211_sta structure. 1521dad0d04fSFariya Fatima * 1522fc438672SDan Carpenter * Return: 0 on success, negative error codes on failure. 1523dad0d04fSFariya Fatima */ 1524dad0d04fSFariya Fatima static int rsi_mac80211_sta_remove(struct ieee80211_hw *hw, 1525dad0d04fSFariya Fatima struct ieee80211_vif *vif, 1526dad0d04fSFariya Fatima struct ieee80211_sta *sta) 1527dad0d04fSFariya Fatima { 1528dad0d04fSFariya Fatima struct rsi_hw *adapter = hw->priv; 1529dad0d04fSFariya Fatima struct rsi_common *common = adapter->priv; 1530571b050bSPrameela Rani Garnepudi struct ieee80211_bss_conf *bss = &vif->bss_conf; 1531571b050bSPrameela Rani Garnepudi struct rsi_sta *rsta; 1532571b050bSPrameela Rani Garnepudi 1533571b050bSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Station Remove: %pM\n", sta->addr); 1534dad0d04fSFariya Fatima 1535dad0d04fSFariya Fatima mutex_lock(&common->mutex); 1536e6d64284SPrameela Rani Garnepudi 15374671c209SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_AP) || 15384671c209SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) { 1539571b050bSPrameela Rani Garnepudi u8 sta_idx, cnt; 1540571b050bSPrameela Rani Garnepudi 1541571b050bSPrameela Rani Garnepudi /* Send peer notify to device */ 1542571b050bSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Indicate bss status to device\n"); 1543571b050bSPrameela Rani Garnepudi for (sta_idx = 0; sta_idx < common->max_stations; sta_idx++) { 1544571b050bSPrameela Rani Garnepudi rsta = &common->stations[sta_idx]; 1545571b050bSPrameela Rani Garnepudi 1546571b050bSPrameela Rani Garnepudi if (!rsta->sta) 1547571b050bSPrameela Rani Garnepudi continue; 1548571b050bSPrameela Rani Garnepudi if (!memcmp(rsta->sta->addr, sta->addr, ETH_ALEN)) { 1549b8bd3a43SPrameela Rani Garnepudi rsi_inform_bss_status(common, RSI_OPMODE_AP, 0, 1550571b050bSPrameela Rani Garnepudi sta->addr, sta->wme, 15514671c209SPrameela Rani Garnepudi sta->aid, sta, sta_idx, 15524fd6c476SPrameela Rani Garnepudi 0, vif); 1553571b050bSPrameela Rani Garnepudi rsta->sta = NULL; 1554571b050bSPrameela Rani Garnepudi rsta->sta_id = -1; 1555571b050bSPrameela Rani Garnepudi for (cnt = 0; cnt < IEEE80211_NUM_TIDS; cnt++) 1556571b050bSPrameela Rani Garnepudi rsta->start_tx_aggr[cnt] = false; 1557571b050bSPrameela Rani Garnepudi if (common->num_stations > 0) 1558571b050bSPrameela Rani Garnepudi common->num_stations--; 1559571b050bSPrameela Rani Garnepudi break; 1560571b050bSPrameela Rani Garnepudi } 1561571b050bSPrameela Rani Garnepudi } 1562571b050bSPrameela Rani Garnepudi if (sta_idx >= common->max_stations) 1563571b050bSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "%s: No station found\n", __func__); 1564571b050bSPrameela Rani Garnepudi } 1565571b050bSPrameela Rani Garnepudi 15664671c209SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_STATION) || 15674671c209SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_CLIENT)) { 1568dad0d04fSFariya Fatima /* Resetting all the fields to default values */ 1569571b050bSPrameela Rani Garnepudi memcpy((u8 *)bss->bssid, (u8 *)sta->addr, ETH_ALEN); 1570571b050bSPrameela Rani Garnepudi bss->qos = sta->wme; 157157fbcce3SJohannes Berg common->bitrate_mask[NL80211_BAND_2GHZ] = 0; 157257fbcce3SJohannes Berg common->bitrate_mask[NL80211_BAND_5GHZ] = 0; 1573dad0d04fSFariya Fatima common->min_rate = 0xffff; 1574dad0d04fSFariya Fatima common->vif_info[0].is_ht = false; 1575dad0d04fSFariya Fatima common->vif_info[0].sgi = false; 1576dad0d04fSFariya Fatima common->vif_info[0].seq_start = 0; 1577dad0d04fSFariya Fatima common->secinfo.ptk_cipher = 0; 1578dad0d04fSFariya Fatima common->secinfo.gtk_cipher = 0; 1579571b050bSPrameela Rani Garnepudi if (!common->iface_down) 1580e6d64284SPrameela Rani Garnepudi rsi_send_rx_filter_frame(common, 0); 1581571b050bSPrameela Rani Garnepudi } 1582dad0d04fSFariya Fatima mutex_unlock(&common->mutex); 1583dad0d04fSFariya Fatima 1584dad0d04fSFariya Fatima return 0; 1585dad0d04fSFariya Fatima } 1586dad0d04fSFariya Fatima 15874edbcd1aSPrameela Rani Garnepudi /** 15884edbcd1aSPrameela Rani Garnepudi * rsi_mac80211_set_antenna() - This function is used to configure 15894edbcd1aSPrameela Rani Garnepudi * tx and rx antennas. 15904edbcd1aSPrameela Rani Garnepudi * @hw: Pointer to the ieee80211_hw structure. 15914edbcd1aSPrameela Rani Garnepudi * @tx_ant: Bitmap for tx antenna 15924edbcd1aSPrameela Rani Garnepudi * @rx_ant: Bitmap for rx antenna 15934edbcd1aSPrameela Rani Garnepudi * 15944edbcd1aSPrameela Rani Garnepudi * Return: 0 on success, Negative error code on failure. 15954edbcd1aSPrameela Rani Garnepudi */ 15964edbcd1aSPrameela Rani Garnepudi static int rsi_mac80211_set_antenna(struct ieee80211_hw *hw, 15974edbcd1aSPrameela Rani Garnepudi u32 tx_ant, u32 rx_ant) 15984edbcd1aSPrameela Rani Garnepudi { 15994edbcd1aSPrameela Rani Garnepudi struct rsi_hw *adapter = hw->priv; 16004edbcd1aSPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 16014edbcd1aSPrameela Rani Garnepudi u8 antenna = 0; 16024edbcd1aSPrameela Rani Garnepudi 16034edbcd1aSPrameela Rani Garnepudi if (tx_ant > 1 || rx_ant > 1) { 16044edbcd1aSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, 16054edbcd1aSPrameela Rani Garnepudi "Invalid antenna selection (tx: %d, rx:%d)\n", 16064edbcd1aSPrameela Rani Garnepudi tx_ant, rx_ant); 16074edbcd1aSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, 16084edbcd1aSPrameela Rani Garnepudi "Use 0 for int_ant, 1 for ext_ant\n"); 16094edbcd1aSPrameela Rani Garnepudi return -EINVAL; 16104edbcd1aSPrameela Rani Garnepudi } 16114edbcd1aSPrameela Rani Garnepudi 16124edbcd1aSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "%s: Antenna map Tx %x Rx %d\n", 16134edbcd1aSPrameela Rani Garnepudi __func__, tx_ant, rx_ant); 16144edbcd1aSPrameela Rani Garnepudi 16154edbcd1aSPrameela Rani Garnepudi mutex_lock(&common->mutex); 16164edbcd1aSPrameela Rani Garnepudi 16174edbcd1aSPrameela Rani Garnepudi antenna = tx_ant ? ANTENNA_SEL_UFL : ANTENNA_SEL_INT; 16184edbcd1aSPrameela Rani Garnepudi if (common->ant_in_use != antenna) 16194edbcd1aSPrameela Rani Garnepudi if (rsi_set_antenna(common, antenna)) 16204edbcd1aSPrameela Rani Garnepudi goto fail_set_antenna; 16214edbcd1aSPrameela Rani Garnepudi 16224edbcd1aSPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "(%s) Antenna path configured successfully\n", 16234edbcd1aSPrameela Rani Garnepudi tx_ant ? "UFL" : "INT"); 16244edbcd1aSPrameela Rani Garnepudi 16254edbcd1aSPrameela Rani Garnepudi common->ant_in_use = antenna; 16264edbcd1aSPrameela Rani Garnepudi 16274edbcd1aSPrameela Rani Garnepudi mutex_unlock(&common->mutex); 16284edbcd1aSPrameela Rani Garnepudi 16294edbcd1aSPrameela Rani Garnepudi return 0; 16304edbcd1aSPrameela Rani Garnepudi 16314edbcd1aSPrameela Rani Garnepudi fail_set_antenna: 16324edbcd1aSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "%s: Failed.\n", __func__); 16334edbcd1aSPrameela Rani Garnepudi mutex_unlock(&common->mutex); 16344edbcd1aSPrameela Rani Garnepudi return -EINVAL; 16354edbcd1aSPrameela Rani Garnepudi } 16364edbcd1aSPrameela Rani Garnepudi 16374edbcd1aSPrameela Rani Garnepudi /** 16384edbcd1aSPrameela Rani Garnepudi * rsi_mac80211_get_antenna() - This function is used to configure 16394edbcd1aSPrameela Rani Garnepudi * tx and rx antennas. 16404edbcd1aSPrameela Rani Garnepudi * 16414edbcd1aSPrameela Rani Garnepudi * @hw: Pointer to the ieee80211_hw structure. 16424edbcd1aSPrameela Rani Garnepudi * @tx_ant: Bitmap for tx antenna 16434edbcd1aSPrameela Rani Garnepudi * @rx_ant: Bitmap for rx antenna 16444edbcd1aSPrameela Rani Garnepudi * 1645fc438672SDan Carpenter * Return: 0 on success, negative error codes on failure. 16464edbcd1aSPrameela Rani Garnepudi */ 16474edbcd1aSPrameela Rani Garnepudi static int rsi_mac80211_get_antenna(struct ieee80211_hw *hw, 16484edbcd1aSPrameela Rani Garnepudi u32 *tx_ant, u32 *rx_ant) 16494edbcd1aSPrameela Rani Garnepudi { 16504edbcd1aSPrameela Rani Garnepudi struct rsi_hw *adapter = hw->priv; 16514edbcd1aSPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 16524edbcd1aSPrameela Rani Garnepudi 16534edbcd1aSPrameela Rani Garnepudi mutex_lock(&common->mutex); 16544edbcd1aSPrameela Rani Garnepudi 16554edbcd1aSPrameela Rani Garnepudi *tx_ant = (common->ant_in_use == ANTENNA_SEL_UFL) ? 1 : 0; 16564edbcd1aSPrameela Rani Garnepudi *rx_ant = 0; 16574edbcd1aSPrameela Rani Garnepudi 16584edbcd1aSPrameela Rani Garnepudi mutex_unlock(&common->mutex); 16594edbcd1aSPrameela Rani Garnepudi 16604edbcd1aSPrameela Rani Garnepudi return 0; 16614edbcd1aSPrameela Rani Garnepudi } 16624edbcd1aSPrameela Rani Garnepudi 1663d7203a83SPrameela Rani Garnepudi static int rsi_map_region_code(enum nl80211_dfs_regions region_code) 1664d7203a83SPrameela Rani Garnepudi { 1665d7203a83SPrameela Rani Garnepudi switch (region_code) { 1666d7203a83SPrameela Rani Garnepudi case NL80211_DFS_FCC: 1667d7203a83SPrameela Rani Garnepudi return RSI_REGION_FCC; 1668d7203a83SPrameela Rani Garnepudi case NL80211_DFS_ETSI: 1669d7203a83SPrameela Rani Garnepudi return RSI_REGION_ETSI; 1670d7203a83SPrameela Rani Garnepudi case NL80211_DFS_JP: 1671d7203a83SPrameela Rani Garnepudi return RSI_REGION_TELEC; 1672d7203a83SPrameela Rani Garnepudi case NL80211_DFS_UNSET: 1673d7203a83SPrameela Rani Garnepudi return RSI_REGION_WORLD; 1674d7203a83SPrameela Rani Garnepudi } 1675d7203a83SPrameela Rani Garnepudi return RSI_REGION_WORLD; 1676d7203a83SPrameela Rani Garnepudi } 1677d7203a83SPrameela Rani Garnepudi 167861d10842SPrameela Rani Garnepudi static void rsi_reg_notify(struct wiphy *wiphy, 167961d10842SPrameela Rani Garnepudi struct regulatory_request *request) 168061d10842SPrameela Rani Garnepudi { 168161d10842SPrameela Rani Garnepudi struct ieee80211_supported_band *sband; 168261d10842SPrameela Rani Garnepudi struct ieee80211_channel *ch; 168361d10842SPrameela Rani Garnepudi struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 168461d10842SPrameela Rani Garnepudi struct rsi_hw * adapter = hw->priv; 1685d7203a83SPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 168661d10842SPrameela Rani Garnepudi int i; 168761d10842SPrameela Rani Garnepudi 1688d7203a83SPrameela Rani Garnepudi mutex_lock(&common->mutex); 1689d7203a83SPrameela Rani Garnepudi 1690d7203a83SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "country = %s dfs_region = %d\n", 1691d7203a83SPrameela Rani Garnepudi request->alpha2, request->dfs_region); 1692d7203a83SPrameela Rani Garnepudi 1693d7203a83SPrameela Rani Garnepudi if (common->num_supp_bands > 1) { 169461d10842SPrameela Rani Garnepudi sband = wiphy->bands[NL80211_BAND_5GHZ]; 169561d10842SPrameela Rani Garnepudi 169661d10842SPrameela Rani Garnepudi for (i = 0; i < sband->n_channels; i++) { 169761d10842SPrameela Rani Garnepudi ch = &sband->channels[i]; 169861d10842SPrameela Rani Garnepudi if (ch->flags & IEEE80211_CHAN_DISABLED) 169961d10842SPrameela Rani Garnepudi continue; 170061d10842SPrameela Rani Garnepudi 170161d10842SPrameela Rani Garnepudi if (ch->flags & IEEE80211_CHAN_RADAR) 170261d10842SPrameela Rani Garnepudi ch->flags |= IEEE80211_CHAN_NO_IR; 170361d10842SPrameela Rani Garnepudi } 1704d7203a83SPrameela Rani Garnepudi } 1705d7203a83SPrameela Rani Garnepudi adapter->dfs_region = rsi_map_region_code(request->dfs_region); 1706d7203a83SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "RSI region code = %d\n", adapter->dfs_region); 170761d10842SPrameela Rani Garnepudi 1708d7203a83SPrameela Rani Garnepudi adapter->country[0] = request->alpha2[0]; 1709d7203a83SPrameela Rani Garnepudi adapter->country[1] = request->alpha2[1]; 1710d7203a83SPrameela Rani Garnepudi 1711d7203a83SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 171261d10842SPrameela Rani Garnepudi } 171361d10842SPrameela Rani Garnepudi 1714edba3532SPavani Muthyala static void rsi_mac80211_rfkill_poll(struct ieee80211_hw *hw) 1715edba3532SPavani Muthyala { 1716edba3532SPavani Muthyala struct rsi_hw *adapter = hw->priv; 1717edba3532SPavani Muthyala struct rsi_common *common = adapter->priv; 1718edba3532SPavani Muthyala 1719edba3532SPavani Muthyala mutex_lock(&common->mutex); 1720edba3532SPavani Muthyala if (common->fsm_state != FSM_MAC_INIT_DONE) 1721edba3532SPavani Muthyala wiphy_rfkill_set_hw_state(hw->wiphy, true); 1722edba3532SPavani Muthyala else 1723edba3532SPavani Muthyala wiphy_rfkill_set_hw_state(hw->wiphy, false); 1724edba3532SPavani Muthyala mutex_unlock(&common->mutex); 1725edba3532SPavani Muthyala } 1726edba3532SPavani Muthyala 1727df771911SPrameela Rani Garnepudi static void rsi_resume_conn_channel(struct rsi_common *common) 1728df771911SPrameela Rani Garnepudi { 1729df771911SPrameela Rani Garnepudi struct rsi_hw *adapter = common->priv; 1730df771911SPrameela Rani Garnepudi struct ieee80211_vif *vif; 1731df771911SPrameela Rani Garnepudi int cnt; 1732df771911SPrameela Rani Garnepudi 1733df771911SPrameela Rani Garnepudi for (cnt = 0; cnt < RSI_MAX_VIFS; cnt++) { 1734df771911SPrameela Rani Garnepudi vif = adapter->vifs[cnt]; 1735df771911SPrameela Rani Garnepudi if (!vif) 1736df771911SPrameela Rani Garnepudi continue; 1737df771911SPrameela Rani Garnepudi 1738df771911SPrameela Rani Garnepudi if ((vif->type == NL80211_IFTYPE_AP) || 1739df771911SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_GO)) { 1740df771911SPrameela Rani Garnepudi rsi_switch_channel(adapter, vif); 1741df771911SPrameela Rani Garnepudi break; 1742df771911SPrameela Rani Garnepudi } 1743df771911SPrameela Rani Garnepudi if (((vif->type == NL80211_IFTYPE_STATION) || 1744df771911SPrameela Rani Garnepudi (vif->type == NL80211_IFTYPE_P2P_CLIENT)) && 1745df771911SPrameela Rani Garnepudi vif->bss_conf.assoc) { 1746df771911SPrameela Rani Garnepudi rsi_switch_channel(adapter, vif); 1747df771911SPrameela Rani Garnepudi break; 1748df771911SPrameela Rani Garnepudi } 1749df771911SPrameela Rani Garnepudi } 1750df771911SPrameela Rani Garnepudi } 1751df771911SPrameela Rani Garnepudi 1752dfefb9f8SKees Cook void rsi_roc_timeout(struct timer_list *t) 1753df771911SPrameela Rani Garnepudi { 1754dfefb9f8SKees Cook struct rsi_common *common = from_timer(common, t, roc_timer); 1755df771911SPrameela Rani Garnepudi 1756df771911SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Remain on channel expired\n"); 1757df771911SPrameela Rani Garnepudi 1758df771911SPrameela Rani Garnepudi mutex_lock(&common->mutex); 1759df771911SPrameela Rani Garnepudi ieee80211_remain_on_channel_expired(common->priv->hw); 1760df771911SPrameela Rani Garnepudi 1761df771911SPrameela Rani Garnepudi if (timer_pending(&common->roc_timer)) 1762df771911SPrameela Rani Garnepudi del_timer(&common->roc_timer); 1763df771911SPrameela Rani Garnepudi 1764df771911SPrameela Rani Garnepudi rsi_resume_conn_channel(common); 1765df771911SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 1766df771911SPrameela Rani Garnepudi } 1767df771911SPrameela Rani Garnepudi 1768df771911SPrameela Rani Garnepudi static int rsi_mac80211_roc(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 1769df771911SPrameela Rani Garnepudi struct ieee80211_channel *chan, int duration, 1770df771911SPrameela Rani Garnepudi enum ieee80211_roc_type type) 1771df771911SPrameela Rani Garnepudi { 1772df771911SPrameela Rani Garnepudi struct rsi_hw *adapter = (struct rsi_hw *)hw->priv; 1773df771911SPrameela Rani Garnepudi struct rsi_common *common = (struct rsi_common *)adapter->priv; 1774df771911SPrameela Rani Garnepudi int status = 0; 1775df771911SPrameela Rani Garnepudi 1776df771911SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "***** Remain on channel *****\n"); 1777df771911SPrameela Rani Garnepudi 1778df771911SPrameela Rani Garnepudi mutex_lock(&common->mutex); 1779df771911SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "%s: channel: %d duration: %dms\n", 1780df771911SPrameela Rani Garnepudi __func__, chan->hw_value, duration); 1781df771911SPrameela Rani Garnepudi 1782df771911SPrameela Rani Garnepudi if (timer_pending(&common->roc_timer)) { 1783df771911SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Stop on-going ROC\n"); 1784df771911SPrameela Rani Garnepudi del_timer(&common->roc_timer); 1785df771911SPrameela Rani Garnepudi } 1786df771911SPrameela Rani Garnepudi common->roc_timer.expires = msecs_to_jiffies(duration) + jiffies; 1787df771911SPrameela Rani Garnepudi add_timer(&common->roc_timer); 1788df771911SPrameela Rani Garnepudi 1789df771911SPrameela Rani Garnepudi /* Configure band */ 1790df771911SPrameela Rani Garnepudi if (rsi_band_check(common, chan)) { 1791df771911SPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "Failed to set band\n"); 1792df771911SPrameela Rani Garnepudi status = -EINVAL; 1793df771911SPrameela Rani Garnepudi goto out; 1794df771911SPrameela Rani Garnepudi } 1795df771911SPrameela Rani Garnepudi 1796df771911SPrameela Rani Garnepudi /* Configure channel */ 1797df771911SPrameela Rani Garnepudi if (rsi_set_channel(common, chan)) { 1798df771911SPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "Failed to set the channel\n"); 1799df771911SPrameela Rani Garnepudi status = -EINVAL; 1800df771911SPrameela Rani Garnepudi goto out; 1801df771911SPrameela Rani Garnepudi } 1802df771911SPrameela Rani Garnepudi 1803df771911SPrameela Rani Garnepudi common->roc_vif = vif; 1804df771911SPrameela Rani Garnepudi ieee80211_ready_on_channel(hw); 1805df771911SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "%s: Ready on channel :%d\n", 1806df771911SPrameela Rani Garnepudi __func__, chan->hw_value); 1807df771911SPrameela Rani Garnepudi 1808df771911SPrameela Rani Garnepudi out: 1809df771911SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 1810df771911SPrameela Rani Garnepudi 1811df771911SPrameela Rani Garnepudi return status; 1812df771911SPrameela Rani Garnepudi } 1813df771911SPrameela Rani Garnepudi 1814df771911SPrameela Rani Garnepudi static int rsi_mac80211_cancel_roc(struct ieee80211_hw *hw) 1815df771911SPrameela Rani Garnepudi { 1816df771911SPrameela Rani Garnepudi struct rsi_hw *adapter = hw->priv; 1817df771911SPrameela Rani Garnepudi struct rsi_common *common = adapter->priv; 1818df771911SPrameela Rani Garnepudi 1819df771911SPrameela Rani Garnepudi rsi_dbg(INFO_ZONE, "Cancel remain on channel\n"); 1820df771911SPrameela Rani Garnepudi 1821df771911SPrameela Rani Garnepudi mutex_lock(&common->mutex); 1822df771911SPrameela Rani Garnepudi if (!timer_pending(&common->roc_timer)) { 1823df771911SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 1824df771911SPrameela Rani Garnepudi return 0; 1825df771911SPrameela Rani Garnepudi } 1826df771911SPrameela Rani Garnepudi 1827df771911SPrameela Rani Garnepudi del_timer(&common->roc_timer); 1828df771911SPrameela Rani Garnepudi 1829df771911SPrameela Rani Garnepudi rsi_resume_conn_channel(common); 1830df771911SPrameela Rani Garnepudi mutex_unlock(&common->mutex); 1831df771911SPrameela Rani Garnepudi 1832df771911SPrameela Rani Garnepudi return 0; 1833df771911SPrameela Rani Garnepudi } 1834df771911SPrameela Rani Garnepudi 1835e6b3b2edSAmitkumar Karwar #ifdef CONFIG_PM 1836f3ac4e73SKarun Eagalapati static const struct wiphy_wowlan_support rsi_wowlan_support = { 1837f3ac4e73SKarun Eagalapati .flags = WIPHY_WOWLAN_ANY | 1838f3ac4e73SKarun Eagalapati WIPHY_WOWLAN_MAGIC_PKT | 1839f3ac4e73SKarun Eagalapati WIPHY_WOWLAN_DISCONNECT | 1840f3ac4e73SKarun Eagalapati WIPHY_WOWLAN_GTK_REKEY_FAILURE | 1841f3ac4e73SKarun Eagalapati WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 1842f3ac4e73SKarun Eagalapati WIPHY_WOWLAN_EAP_IDENTITY_REQ | 1843f3ac4e73SKarun Eagalapati WIPHY_WOWLAN_4WAY_HANDSHAKE, 1844f3ac4e73SKarun Eagalapati }; 1845f3ac4e73SKarun Eagalapati 1846f3ac4e73SKarun Eagalapati static u16 rsi_wow_map_triggers(struct rsi_common *common, 1847f3ac4e73SKarun Eagalapati struct cfg80211_wowlan *wowlan) 1848f3ac4e73SKarun Eagalapati { 1849f3ac4e73SKarun Eagalapati u16 wow_triggers = 0; 1850f3ac4e73SKarun Eagalapati 1851f3ac4e73SKarun Eagalapati rsi_dbg(INFO_ZONE, "Mapping wowlan triggers\n"); 1852f3ac4e73SKarun Eagalapati 1853f3ac4e73SKarun Eagalapati if (wowlan->any) 1854f3ac4e73SKarun Eagalapati wow_triggers |= RSI_WOW_ANY; 1855f3ac4e73SKarun Eagalapati if (wowlan->magic_pkt) 1856f3ac4e73SKarun Eagalapati wow_triggers |= RSI_WOW_MAGIC_PKT; 1857f3ac4e73SKarun Eagalapati if (wowlan->disconnect) 1858f3ac4e73SKarun Eagalapati wow_triggers |= RSI_WOW_DISCONNECT; 1859f3ac4e73SKarun Eagalapati if (wowlan->gtk_rekey_failure || wowlan->eap_identity_req || 1860f3ac4e73SKarun Eagalapati wowlan->four_way_handshake) 1861f3ac4e73SKarun Eagalapati wow_triggers |= RSI_WOW_GTK_REKEY; 1862f3ac4e73SKarun Eagalapati 1863f3ac4e73SKarun Eagalapati return wow_triggers; 1864f3ac4e73SKarun Eagalapati } 1865f3ac4e73SKarun Eagalapati 1866f3ac4e73SKarun Eagalapati int rsi_config_wowlan(struct rsi_hw *adapter, struct cfg80211_wowlan *wowlan) 1867f3ac4e73SKarun Eagalapati { 1868f3ac4e73SKarun Eagalapati struct rsi_common *common = adapter->priv; 1869f3ac4e73SKarun Eagalapati u16 triggers = 0; 1870f3ac4e73SKarun Eagalapati u16 rx_filter_word = 0; 187154b51720SSanjay Kumar Konduri struct ieee80211_bss_conf *bss = NULL; 1872f3ac4e73SKarun Eagalapati 1873f3ac4e73SKarun Eagalapati rsi_dbg(INFO_ZONE, "Config WoWLAN to device\n"); 1874f3ac4e73SKarun Eagalapati 187554b51720SSanjay Kumar Konduri if (!adapter->vifs[0]) 187654b51720SSanjay Kumar Konduri return -EINVAL; 187754b51720SSanjay Kumar Konduri 187854b51720SSanjay Kumar Konduri bss = &adapter->vifs[0]->bss_conf; 187954b51720SSanjay Kumar Konduri 1880f3ac4e73SKarun Eagalapati if (WARN_ON(!wowlan)) { 1881f3ac4e73SKarun Eagalapati rsi_dbg(ERR_ZONE, "WoW triggers not enabled\n"); 1882f3ac4e73SKarun Eagalapati return -EINVAL; 1883f3ac4e73SKarun Eagalapati } 1884f3ac4e73SKarun Eagalapati 18851d18c558SSiva Rebbagondla common->wow_flags |= RSI_WOW_ENABLED; 1886f3ac4e73SKarun Eagalapati triggers = rsi_wow_map_triggers(common, wowlan); 1887f3ac4e73SKarun Eagalapati if (!triggers) { 1888f3ac4e73SKarun Eagalapati rsi_dbg(ERR_ZONE, "%s:No valid WoW triggers\n", __func__); 1889f3ac4e73SKarun Eagalapati return -EINVAL; 1890f3ac4e73SKarun Eagalapati } 1891f3ac4e73SKarun Eagalapati if (!bss->assoc) { 1892f3ac4e73SKarun Eagalapati rsi_dbg(ERR_ZONE, 1893f3ac4e73SKarun Eagalapati "Cannot configure WoWLAN (Station not connected)\n"); 1894f3ac4e73SKarun Eagalapati common->wow_flags |= RSI_WOW_NO_CONNECTION; 1895f3ac4e73SKarun Eagalapati return 0; 1896f3ac4e73SKarun Eagalapati } 1897f3ac4e73SKarun Eagalapati rsi_dbg(INFO_ZONE, "TRIGGERS %x\n", triggers); 1898f3ac4e73SKarun Eagalapati rsi_send_wowlan_request(common, triggers, 1); 1899f3ac4e73SKarun Eagalapati 1900f3ac4e73SKarun Eagalapati /** 1901f3ac4e73SKarun Eagalapati * Increase the beacon_miss threshold & keep-alive timers in 1902f3ac4e73SKarun Eagalapati * vap_update frame 1903f3ac4e73SKarun Eagalapati */ 1904f3ac4e73SKarun Eagalapati rsi_send_vap_dynamic_update(common); 1905f3ac4e73SKarun Eagalapati 1906f3ac4e73SKarun Eagalapati rx_filter_word = (ALLOW_DATA_ASSOC_PEER | DISALLOW_BEACONS); 1907f3ac4e73SKarun Eagalapati rsi_send_rx_filter_frame(common, rx_filter_word); 1908f3ac4e73SKarun Eagalapati 1909f3ac4e73SKarun Eagalapati return 0; 1910f3ac4e73SKarun Eagalapati } 1911063848c3SKarun Eagalapati EXPORT_SYMBOL(rsi_config_wowlan); 1912f3ac4e73SKarun Eagalapati 1913f3ac4e73SKarun Eagalapati static int rsi_mac80211_suspend(struct ieee80211_hw *hw, 1914f3ac4e73SKarun Eagalapati struct cfg80211_wowlan *wowlan) 1915f3ac4e73SKarun Eagalapati { 1916f3ac4e73SKarun Eagalapati struct rsi_hw *adapter = hw->priv; 1917f3ac4e73SKarun Eagalapati struct rsi_common *common = adapter->priv; 1918f3ac4e73SKarun Eagalapati 1919f3ac4e73SKarun Eagalapati rsi_dbg(INFO_ZONE, "%s: mac80211 suspend\n", __func__); 1920f3ac4e73SKarun Eagalapati mutex_lock(&common->mutex); 1921f3ac4e73SKarun Eagalapati if (rsi_config_wowlan(adapter, wowlan)) { 1922f3ac4e73SKarun Eagalapati rsi_dbg(ERR_ZONE, "Failed to configure WoWLAN\n"); 1923f3ac4e73SKarun Eagalapati mutex_unlock(&common->mutex); 1924f3ac4e73SKarun Eagalapati return 1; 1925f3ac4e73SKarun Eagalapati } 1926f3ac4e73SKarun Eagalapati mutex_unlock(&common->mutex); 1927f3ac4e73SKarun Eagalapati 1928f3ac4e73SKarun Eagalapati return 0; 1929f3ac4e73SKarun Eagalapati } 1930f3ac4e73SKarun Eagalapati 1931f3ac4e73SKarun Eagalapati static int rsi_mac80211_resume(struct ieee80211_hw *hw) 1932f3ac4e73SKarun Eagalapati { 1933f3ac4e73SKarun Eagalapati u16 rx_filter_word = 0; 1934f3ac4e73SKarun Eagalapati struct rsi_hw *adapter = hw->priv; 1935f3ac4e73SKarun Eagalapati struct rsi_common *common = adapter->priv; 1936f3ac4e73SKarun Eagalapati 1937f3ac4e73SKarun Eagalapati common->wow_flags = 0; 1938f3ac4e73SKarun Eagalapati 1939f3ac4e73SKarun Eagalapati rsi_dbg(INFO_ZONE, "%s: mac80211 resume\n", __func__); 1940f3ac4e73SKarun Eagalapati 1941a63762d0SSiva Rebbagondla if (common->hibernate_resume) { 1942a63762d0SSiva Rebbagondla /* Device need a complete restart of all MAC operations. 1943a63762d0SSiva Rebbagondla * returning 1 will serve this purpose. 1944a63762d0SSiva Rebbagondla */ 1945a63762d0SSiva Rebbagondla return 1; 1946a63762d0SSiva Rebbagondla } 1947b6c8d06cSKarun Eagalapati 1948f3ac4e73SKarun Eagalapati mutex_lock(&common->mutex); 1949f3ac4e73SKarun Eagalapati rsi_send_wowlan_request(common, 0, 0); 1950f3ac4e73SKarun Eagalapati 1951f3ac4e73SKarun Eagalapati rx_filter_word = (ALLOW_DATA_ASSOC_PEER | ALLOW_CTRL_ASSOC_PEER | 1952f3ac4e73SKarun Eagalapati ALLOW_MGMT_ASSOC_PEER); 1953f3ac4e73SKarun Eagalapati rsi_send_rx_filter_frame(common, rx_filter_word); 1954f3ac4e73SKarun Eagalapati mutex_unlock(&common->mutex); 1955f3ac4e73SKarun Eagalapati 1956f3ac4e73SKarun Eagalapati return 0; 1957f3ac4e73SKarun Eagalapati } 1958f3ac4e73SKarun Eagalapati 1959f3ac4e73SKarun Eagalapati #endif 1960f3ac4e73SKarun Eagalapati 19619ea792a4SArvind Yadav static const struct ieee80211_ops mac80211_ops = { 1962dad0d04fSFariya Fatima .tx = rsi_mac80211_tx, 1963dad0d04fSFariya Fatima .start = rsi_mac80211_start, 1964dad0d04fSFariya Fatima .stop = rsi_mac80211_stop, 1965dad0d04fSFariya Fatima .add_interface = rsi_mac80211_add_interface, 1966dad0d04fSFariya Fatima .remove_interface = rsi_mac80211_remove_interface, 1967dad0d04fSFariya Fatima .config = rsi_mac80211_config, 1968dad0d04fSFariya Fatima .bss_info_changed = rsi_mac80211_bss_info_changed, 1969dad0d04fSFariya Fatima .conf_tx = rsi_mac80211_conf_tx, 1970dad0d04fSFariya Fatima .configure_filter = rsi_mac80211_conf_filter, 1971dad0d04fSFariya Fatima .set_key = rsi_mac80211_set_key, 1972dad0d04fSFariya Fatima .set_rts_threshold = rsi_mac80211_set_rts_threshold, 1973dad0d04fSFariya Fatima .set_bitrate_mask = rsi_mac80211_set_rate_mask, 1974dad0d04fSFariya Fatima .ampdu_action = rsi_mac80211_ampdu_action, 1975dad0d04fSFariya Fatima .sta_add = rsi_mac80211_sta_add, 1976dad0d04fSFariya Fatima .sta_remove = rsi_mac80211_sta_remove, 19774edbcd1aSPrameela Rani Garnepudi .set_antenna = rsi_mac80211_set_antenna, 19784edbcd1aSPrameela Rani Garnepudi .get_antenna = rsi_mac80211_get_antenna, 1979edba3532SPavani Muthyala .rfkill_poll = rsi_mac80211_rfkill_poll, 1980df771911SPrameela Rani Garnepudi .remain_on_channel = rsi_mac80211_roc, 1981df771911SPrameela Rani Garnepudi .cancel_remain_on_channel = rsi_mac80211_cancel_roc, 1982f3ac4e73SKarun Eagalapati #ifdef CONFIG_PM 1983f3ac4e73SKarun Eagalapati .suspend = rsi_mac80211_suspend, 1984f3ac4e73SKarun Eagalapati .resume = rsi_mac80211_resume, 1985f3ac4e73SKarun Eagalapati #endif 19867fdcb8e1SPrameela Rani Garnepudi .hw_scan = rsi_mac80211_hw_scan_start, 19877fdcb8e1SPrameela Rani Garnepudi .cancel_hw_scan = rsi_mac80211_cancel_hw_scan, 1988dad0d04fSFariya Fatima }; 1989dad0d04fSFariya Fatima 1990dad0d04fSFariya Fatima /** 1991dad0d04fSFariya Fatima * rsi_mac80211_attach() - This function is used to initialize Mac80211 stack. 1992dad0d04fSFariya Fatima * @common: Pointer to the driver private structure. 1993dad0d04fSFariya Fatima * 1994fc438672SDan Carpenter * Return: 0 on success, negative error codes on failure. 1995dad0d04fSFariya Fatima */ 1996dad0d04fSFariya Fatima int rsi_mac80211_attach(struct rsi_common *common) 1997dad0d04fSFariya Fatima { 1998dad0d04fSFariya Fatima int status = 0; 1999dad0d04fSFariya Fatima struct ieee80211_hw *hw = NULL; 2000dad0d04fSFariya Fatima struct wiphy *wiphy = NULL; 2001dad0d04fSFariya Fatima struct rsi_hw *adapter = common->priv; 2002dad0d04fSFariya Fatima u8 addr_mask[ETH_ALEN] = {0x0, 0x0, 0x0, 0x0, 0x0, 0x3}; 2003dad0d04fSFariya Fatima 2004dad0d04fSFariya Fatima rsi_dbg(INIT_ZONE, "%s: Performing mac80211 attach\n", __func__); 2005dad0d04fSFariya Fatima 2006dad0d04fSFariya Fatima hw = ieee80211_alloc_hw(sizeof(struct rsi_hw), &mac80211_ops); 2007dad0d04fSFariya Fatima if (!hw) { 2008dad0d04fSFariya Fatima rsi_dbg(ERR_ZONE, "%s: ieee80211 hw alloc failed\n", __func__); 2009dad0d04fSFariya Fatima return -ENOMEM; 2010dad0d04fSFariya Fatima } 2011dad0d04fSFariya Fatima 2012dad0d04fSFariya Fatima wiphy = hw->wiphy; 2013dad0d04fSFariya Fatima 2014dad0d04fSFariya Fatima SET_IEEE80211_DEV(hw, adapter->device); 2015dad0d04fSFariya Fatima 2016dad0d04fSFariya Fatima hw->priv = adapter; 2017dad0d04fSFariya Fatima adapter->hw = hw; 2018dad0d04fSFariya Fatima 201930686bf7SJohannes Berg ieee80211_hw_set(hw, SIGNAL_DBM); 202030686bf7SJohannes Berg ieee80211_hw_set(hw, HAS_RATE_CONTROL); 202130686bf7SJohannes Berg ieee80211_hw_set(hw, AMPDU_AGGREGATION); 2022ce86893fSKarun Eagalapati ieee80211_hw_set(hw, SUPPORTS_PS); 2023ce86893fSKarun Eagalapati ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS); 2024dad0d04fSFariya Fatima 2025dad0d04fSFariya Fatima hw->queues = MAX_HW_QUEUES; 2026dad0d04fSFariya Fatima hw->extra_tx_headroom = RSI_NEEDED_HEADROOM; 2027dad0d04fSFariya Fatima 2028dad0d04fSFariya Fatima hw->max_rates = 1; 2029dad0d04fSFariya Fatima hw->max_rate_tries = MAX_RETRIES; 2030db07971dSKarun Eagalapati hw->uapsd_queues = RSI_IEEE80211_UAPSD_QUEUES; 2031db07971dSKarun Eagalapati hw->uapsd_max_sp_len = IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL; 2032dad0d04fSFariya Fatima 2033a55e50f0SAmitkumar Karwar hw->max_tx_aggregation_subframes = RSI_MAX_TX_AGGR_FRMS; 2034a55e50f0SAmitkumar Karwar hw->max_rx_aggregation_subframes = RSI_MAX_RX_AGGR_FRMS; 2035dad0d04fSFariya Fatima hw->rate_control_algorithm = "AARF"; 2036dad0d04fSFariya Fatima 2037dad0d04fSFariya Fatima SET_IEEE80211_PERM_ADDR(hw, common->mac_addr); 2038dad0d04fSFariya Fatima ether_addr_copy(hw->wiphy->addr_mask, addr_mask); 2039dad0d04fSFariya Fatima 20406da1e00aSPrameela Rani Garnepudi wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 2041421eedffSPrameela Rani Garnepudi BIT(NL80211_IFTYPE_AP) | 2042421eedffSPrameela Rani Garnepudi BIT(NL80211_IFTYPE_P2P_DEVICE) | 2043421eedffSPrameela Rani Garnepudi BIT(NL80211_IFTYPE_P2P_CLIENT) | 2044421eedffSPrameela Rani Garnepudi BIT(NL80211_IFTYPE_P2P_GO); 2045421eedffSPrameela Rani Garnepudi 2046dad0d04fSFariya Fatima wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 2047dad0d04fSFariya Fatima wiphy->retry_short = RETRY_SHORT; 2048dad0d04fSFariya Fatima wiphy->retry_long = RETRY_LONG; 2049dad0d04fSFariya Fatima wiphy->frag_threshold = IEEE80211_MAX_FRAG_THRESHOLD; 2050dad0d04fSFariya Fatima wiphy->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; 2051dad0d04fSFariya Fatima wiphy->flags = 0; 2052dad0d04fSFariya Fatima 2053dad0d04fSFariya Fatima wiphy->available_antennas_rx = 1; 2054dad0d04fSFariya Fatima wiphy->available_antennas_tx = 1; 2055f0b147b8SAmitkumar Karwar 2056f0b147b8SAmitkumar Karwar rsi_register_rates_channels(adapter, NL80211_BAND_2GHZ); 205757fbcce3SJohannes Berg wiphy->bands[NL80211_BAND_2GHZ] = 205857fbcce3SJohannes Berg &adapter->sbands[NL80211_BAND_2GHZ]; 2059f0b147b8SAmitkumar Karwar if (common->num_supp_bands > 1) { 2060f0b147b8SAmitkumar Karwar rsi_register_rates_channels(adapter, NL80211_BAND_5GHZ); 206157fbcce3SJohannes Berg wiphy->bands[NL80211_BAND_5GHZ] = 206257fbcce3SJohannes Berg &adapter->sbands[NL80211_BAND_5GHZ]; 2063f0b147b8SAmitkumar Karwar } 2064dad0d04fSFariya Fatima 20656da1e00aSPrameela Rani Garnepudi /* AP Parameters */ 20666da1e00aSPrameela Rani Garnepudi wiphy->max_ap_assoc_sta = rsi_max_ap_stas[common->oper_mode - 1]; 20676da1e00aSPrameela Rani Garnepudi common->max_stations = wiphy->max_ap_assoc_sta; 20686da1e00aSPrameela Rani Garnepudi rsi_dbg(ERR_ZONE, "Max Stations Allowed = %d\n", common->max_stations); 20696da1e00aSPrameela Rani Garnepudi hw->sta_data_size = sizeof(struct rsi_sta); 20707fdcb8e1SPrameela Rani Garnepudi 20717fdcb8e1SPrameela Rani Garnepudi wiphy->max_scan_ssids = RSI_MAX_SCAN_SSIDS; 20727fdcb8e1SPrameela Rani Garnepudi wiphy->max_scan_ie_len = RSI_MAX_SCAN_IE_LEN; 20736da1e00aSPrameela Rani Garnepudi wiphy->flags = WIPHY_FLAG_REPORTS_OBSS; 20746da1e00aSPrameela Rani Garnepudi wiphy->flags |= WIPHY_FLAG_AP_UAPSD; 20756da1e00aSPrameela Rani Garnepudi wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER; 207661d10842SPrameela Rani Garnepudi wiphy->reg_notifier = rsi_reg_notify; 207761d10842SPrameela Rani Garnepudi 2078e6b3b2edSAmitkumar Karwar #ifdef CONFIG_PM 2079f3ac4e73SKarun Eagalapati wiphy->wowlan = &rsi_wowlan_support; 2080e6b3b2edSAmitkumar Karwar #endif 2081e6b3b2edSAmitkumar Karwar 2082ae44b502SAndrew Zaborowski wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST); 2083ae44b502SAndrew Zaborowski 2084421eedffSPrameela Rani Garnepudi /* Wi-Fi direct parameters */ 2085df771911SPrameela Rani Garnepudi wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; 2086df771911SPrameela Rani Garnepudi wiphy->flags |= WIPHY_FLAG_OFFCHAN_TX; 2087df771911SPrameela Rani Garnepudi wiphy->max_remain_on_channel_duration = 10000; 2088421eedffSPrameela Rani Garnepudi hw->max_listen_interval = 10; 2089421eedffSPrameela Rani Garnepudi wiphy->iface_combinations = rsi_iface_combinations; 2090421eedffSPrameela Rani Garnepudi wiphy->n_iface_combinations = ARRAY_SIZE(rsi_iface_combinations); 2091421eedffSPrameela Rani Garnepudi 20921e9c410fSAmitkumar Karwar if (common->coex_mode > 1) 20931e9c410fSAmitkumar Karwar wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; 20941e9c410fSAmitkumar Karwar 2095dad0d04fSFariya Fatima status = ieee80211_register_hw(hw); 2096dad0d04fSFariya Fatima if (status) 2097dad0d04fSFariya Fatima return status; 2098dad0d04fSFariya Fatima 2099dad0d04fSFariya Fatima return rsi_init_dbgfs(adapter); 2100dad0d04fSFariya Fatima } 2101