1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (c) 2012 - 2018 Microchip Technology Inc., and its subsidiaries. 4 * All rights reserved. 5 */ 6 7 #ifndef WILC_NETDEV_H 8 #define WILC_NETDEV_H 9 10 #include <linux/tcp.h> 11 #include <linux/ieee80211.h> 12 #include <net/cfg80211.h> 13 #include <net/ieee80211_radiotap.h> 14 #include <linux/if_arp.h> 15 #include <linux/gpio/consumer.h> 16 17 #include "hif.h" 18 #include "wlan.h" 19 #include "wlan_cfg.h" 20 21 #define FLOW_CONTROL_LOWER_THRESHOLD 128 22 #define FLOW_CONTROL_UPPER_THRESHOLD 256 23 24 #define PMKID_FOUND 1 25 #define NUM_STA_ASSOCIATED 8 26 27 #define TCP_ACK_FILTER_LINK_SPEED_THRESH 54 28 #define DEFAULT_LINK_SPEED 72 29 30 #define TX_BACKOFF_WEIGHT_MS 1 31 32 struct wilc_wfi_stats { 33 unsigned long rx_packets; 34 unsigned long tx_packets; 35 unsigned long rx_bytes; 36 unsigned long tx_bytes; 37 u64 rx_time; 38 u64 tx_time; 39 40 }; 41 42 struct wilc_wfi_key { 43 u8 *key; 44 u8 *seq; 45 int key_len; 46 int seq_len; 47 u32 cipher; 48 }; 49 50 struct sta_info { 51 u8 sta_associated_bss[WILC_MAX_NUM_STA][ETH_ALEN]; 52 }; 53 54 /* Parameters needed for host interface for remaining on channel */ 55 struct wilc_wfi_p2p_listen_params { 56 struct ieee80211_channel *listen_ch; 57 u32 listen_duration; 58 u64 listen_cookie; 59 }; 60 61 static const u32 wilc_cipher_suites[] = { 62 WLAN_CIPHER_SUITE_TKIP, 63 WLAN_CIPHER_SUITE_CCMP, 64 WLAN_CIPHER_SUITE_AES_CMAC 65 }; 66 67 #define CHAN2G(_channel, _freq, _flags) { \ 68 .band = NL80211_BAND_2GHZ, \ 69 .center_freq = (_freq), \ 70 .hw_value = (_channel), \ 71 .flags = (_flags), \ 72 .max_antenna_gain = 0, \ 73 .max_power = 30, \ 74 } 75 76 static const struct ieee80211_channel wilc_2ghz_channels[] = { 77 CHAN2G(1, 2412, 0), 78 CHAN2G(2, 2417, 0), 79 CHAN2G(3, 2422, 0), 80 CHAN2G(4, 2427, 0), 81 CHAN2G(5, 2432, 0), 82 CHAN2G(6, 2437, 0), 83 CHAN2G(7, 2442, 0), 84 CHAN2G(8, 2447, 0), 85 CHAN2G(9, 2452, 0), 86 CHAN2G(10, 2457, 0), 87 CHAN2G(11, 2462, 0), 88 CHAN2G(12, 2467, 0), 89 CHAN2G(13, 2472, 0), 90 CHAN2G(14, 2484, 0) 91 }; 92 93 #define RATETAB_ENT(_rate, _hw_value, _flags) { \ 94 .bitrate = (_rate), \ 95 .hw_value = (_hw_value), \ 96 .flags = (_flags), \ 97 } 98 99 static struct ieee80211_rate wilc_bitrates[] = { 100 RATETAB_ENT(10, 0, 0), 101 RATETAB_ENT(20, 1, 0), 102 RATETAB_ENT(55, 2, 0), 103 RATETAB_ENT(110, 3, 0), 104 RATETAB_ENT(60, 9, 0), 105 RATETAB_ENT(90, 6, 0), 106 RATETAB_ENT(120, 7, 0), 107 RATETAB_ENT(180, 8, 0), 108 RATETAB_ENT(240, 9, 0), 109 RATETAB_ENT(360, 10, 0), 110 RATETAB_ENT(480, 11, 0), 111 RATETAB_ENT(540, 12, 0) 112 }; 113 114 struct wilc_priv { 115 struct wireless_dev wdev; 116 struct cfg80211_scan_request *scan_req; 117 118 struct wilc_wfi_p2p_listen_params remain_on_ch_params; 119 u64 tx_cookie; 120 121 bool cfg_scanning; 122 123 u8 associated_bss[ETH_ALEN]; 124 struct sta_info assoc_stainfo; 125 struct sk_buff *skb; 126 struct net_device *dev; 127 struct host_if_drv *hif_drv; 128 struct wilc_pmkid_attr pmkid_list; 129 130 /* The real interface that the monitor is on */ 131 struct net_device *real_ndev; 132 struct wilc_wfi_key *wilc_gtk[WILC_MAX_NUM_STA]; 133 struct wilc_wfi_key *wilc_ptk[WILC_MAX_NUM_STA]; 134 struct wilc_wfi_key *wilc_igtk[2]; 135 u8 wilc_groupkey; 136 137 /* mutexes */ 138 struct mutex scan_req_lock; 139 bool p2p_listen_state; 140 int scanned_cnt; 141 142 u64 inc_roc_cookie; 143 }; 144 145 #define MAX_TCP_SESSION 25 146 #define MAX_PENDING_ACKS 256 147 148 struct ack_session_info { 149 u32 seq_num; 150 u32 bigger_ack_num; 151 u16 src_port; 152 u16 dst_port; 153 u16 status; 154 }; 155 156 struct pending_acks { 157 u32 ack_num; 158 u32 session_index; 159 struct txq_entry_t *txqe; 160 }; 161 162 struct tcp_ack_filter { 163 struct ack_session_info ack_session_info[2 * MAX_TCP_SESSION]; 164 struct pending_acks pending_acks[MAX_PENDING_ACKS]; 165 u32 pending_base; 166 u32 tcp_session; 167 u32 pending_acks_idx; 168 bool enabled; 169 }; 170 171 struct wilc_vif { 172 u8 idx; 173 u8 iftype; 174 int monitor_flag; 175 int mac_opened; 176 u32 mgmt_reg_stypes; 177 struct net_device_stats netstats; 178 struct wilc *wilc; 179 u8 bssid[ETH_ALEN]; 180 struct host_if_drv *hif_drv; 181 struct net_device *ndev; 182 struct timer_list during_ip_timer; 183 struct timer_list periodic_rssi; 184 struct rf_info periodic_stat; 185 struct tcp_ack_filter ack_filter; 186 bool connecting; 187 struct wilc_priv priv; 188 struct list_head list; 189 struct cfg80211_bss *bss; 190 struct cfg80211_external_auth_params auth; 191 }; 192 193 struct wilc_tx_queue_status { 194 u8 buffer[AC_BUFFER_SIZE]; 195 u16 end_index; 196 u16 cnt[NQUEUES]; 197 u16 sum; 198 bool initialized; 199 }; 200 201 struct wilc { 202 struct wiphy *wiphy; 203 const struct wilc_hif_func *hif_func; 204 int io_type; 205 s8 mac_status; 206 struct clk *rtc_clk; 207 bool initialized; 208 u32 chipid; 209 bool power_save_mode; 210 int dev_irq_num; 211 int close; 212 u8 vif_num; 213 struct list_head vif_list; 214 215 /* protect vif list */ 216 struct mutex vif_mutex; 217 struct srcu_struct srcu; 218 u8 open_ifcs; 219 220 /* protect head of transmit queue */ 221 struct mutex txq_add_to_head_cs; 222 223 /* protect txq_entry_t transmit queue */ 224 spinlock_t txq_spinlock; 225 226 /* protect rxq_entry_t receiver queue */ 227 struct mutex rxq_cs; 228 229 /* lock to protect hif access */ 230 struct mutex hif_cs; 231 232 struct completion cfg_event; 233 struct completion sync_event; 234 struct completion txq_event; 235 struct completion txq_thread_started; 236 237 struct task_struct *txq_thread; 238 239 int quit; 240 241 /* lock to protect issue of wid command to firmware */ 242 struct mutex cfg_cmd_lock; 243 struct wilc_cfg_frame cfg_frame; 244 u32 cfg_frame_offset; 245 u8 cfg_seq_no; 246 247 u8 *rx_buffer; 248 u32 rx_buffer_offset; 249 u8 *tx_buffer; 250 u32 *vmm_table; 251 252 struct txq_handle txq[NQUEUES]; 253 int txq_entries; 254 255 struct wilc_tx_queue_status tx_q_limit; 256 struct rxq_entry_t rxq_head; 257 258 const struct firmware *firmware; 259 260 struct device *dev; 261 bool suspend_event; 262 263 struct workqueue_struct *hif_workqueue; 264 struct wilc_cfg cfg; 265 void *bus_data; 266 struct net_device *monitor_dev; 267 268 /* deinit lock */ 269 struct mutex deinit_lock; 270 u8 sta_ch; 271 u8 op_ch; 272 struct ieee80211_channel channels[ARRAY_SIZE(wilc_2ghz_channels)]; 273 struct ieee80211_rate bitrates[ARRAY_SIZE(wilc_bitrates)]; 274 struct ieee80211_supported_band band; 275 u32 cipher_suites[ARRAY_SIZE(wilc_cipher_suites)]; 276 }; 277 278 struct wilc_wfi_mon_priv { 279 struct net_device *real_ndev; 280 }; 281 282 void wilc_frmw_to_host(struct wilc *wilc, u8 *buff, u32 size, u32 pkt_offset); 283 void wilc_mac_indicate(struct wilc *wilc); 284 void wilc_netdev_cleanup(struct wilc *wilc); 285 void wilc_wfi_mgmt_rx(struct wilc *wilc, u8 *buff, u32 size, bool is_auth); 286 void wilc_wlan_set_bssid(struct net_device *wilc_netdev, const u8 *bssid, 287 u8 mode); 288 struct wilc_vif *wilc_netdev_ifc_init(struct wilc *wl, const char *name, 289 int vif_type, enum nl80211_iftype type, 290 bool rtnl_locked); 291 #endif 292