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 #include <linux/rculist.h> 17 18 #include "hif.h" 19 #include "wlan.h" 20 #include "wlan_cfg.h" 21 22 #define FLOW_CONTROL_LOWER_THRESHOLD 128 23 #define FLOW_CONTROL_UPPER_THRESHOLD 256 24 25 #define PMKID_FOUND 1 26 #define NUM_STA_ASSOCIATED 8 27 28 #define TCP_ACK_FILTER_LINK_SPEED_THRESH 54 29 #define DEFAULT_LINK_SPEED 72 30 31 #define TX_BACKOFF_WEIGHT_MS 1 32 33 #define wilc_for_each_vif(w, v) \ 34 struct wilc *_w = w; \ 35 list_for_each_entry_rcu(v, &_w->vif_list, list, \ 36 rcu_read_lock_held()) 37 38 struct wilc_wfi_stats { 39 unsigned long rx_packets; 40 unsigned long tx_packets; 41 unsigned long rx_bytes; 42 unsigned long tx_bytes; 43 u64 rx_time; 44 u64 tx_time; 45 46 }; 47 48 struct wilc_wfi_key { 49 u8 *key; 50 u8 *seq; 51 int key_len; 52 int seq_len; 53 u32 cipher; 54 }; 55 56 struct sta_info { 57 u8 sta_associated_bss[WILC_MAX_NUM_STA][ETH_ALEN]; 58 }; 59 60 /* Parameters needed for host interface for remaining on channel */ 61 struct wilc_wfi_p2p_listen_params { 62 struct ieee80211_channel *listen_ch; 63 u32 listen_duration; 64 u64 listen_cookie; 65 }; 66 67 static const u32 wilc_cipher_suites[] = { 68 WLAN_CIPHER_SUITE_TKIP, 69 WLAN_CIPHER_SUITE_CCMP, 70 WLAN_CIPHER_SUITE_AES_CMAC 71 }; 72 73 #define CHAN2G(_channel, _freq, _flags) { \ 74 .band = NL80211_BAND_2GHZ, \ 75 .center_freq = (_freq), \ 76 .hw_value = (_channel), \ 77 .flags = (_flags), \ 78 .max_antenna_gain = 0, \ 79 .max_power = 30, \ 80 } 81 82 static const struct ieee80211_channel wilc_2ghz_channels[] = { 83 CHAN2G(1, 2412, 0), 84 CHAN2G(2, 2417, 0), 85 CHAN2G(3, 2422, 0), 86 CHAN2G(4, 2427, 0), 87 CHAN2G(5, 2432, 0), 88 CHAN2G(6, 2437, 0), 89 CHAN2G(7, 2442, 0), 90 CHAN2G(8, 2447, 0), 91 CHAN2G(9, 2452, 0), 92 CHAN2G(10, 2457, 0), 93 CHAN2G(11, 2462, 0), 94 CHAN2G(12, 2467, 0), 95 CHAN2G(13, 2472, 0), 96 CHAN2G(14, 2484, 0) 97 }; 98 99 #define RATETAB_ENT(_rate, _hw_value, _flags) { \ 100 .bitrate = (_rate), \ 101 .hw_value = (_hw_value), \ 102 .flags = (_flags), \ 103 } 104 105 static struct ieee80211_rate wilc_bitrates[] = { 106 RATETAB_ENT(10, 0, 0), 107 RATETAB_ENT(20, 1, 0), 108 RATETAB_ENT(55, 2, 0), 109 RATETAB_ENT(110, 3, 0), 110 RATETAB_ENT(60, 9, 0), 111 RATETAB_ENT(90, 6, 0), 112 RATETAB_ENT(120, 7, 0), 113 RATETAB_ENT(180, 8, 0), 114 RATETAB_ENT(240, 9, 0), 115 RATETAB_ENT(360, 10, 0), 116 RATETAB_ENT(480, 11, 0), 117 RATETAB_ENT(540, 12, 0) 118 }; 119 120 struct wilc_priv { 121 struct wireless_dev wdev; 122 struct cfg80211_scan_request *scan_req; 123 124 struct wilc_wfi_p2p_listen_params remain_on_ch_params; 125 u64 tx_cookie; 126 127 bool cfg_scanning; 128 129 u8 associated_bss[ETH_ALEN]; 130 struct sta_info assoc_stainfo; 131 struct sk_buff *skb; 132 struct net_device *dev; 133 struct host_if_drv *hif_drv; 134 struct wilc_pmkid_attr pmkid_list; 135 136 /* The real interface that the monitor is on */ 137 struct net_device *real_ndev; 138 struct wilc_wfi_key *wilc_gtk[WILC_MAX_NUM_STA]; 139 struct wilc_wfi_key *wilc_ptk[WILC_MAX_NUM_STA]; 140 struct wilc_wfi_key *wilc_igtk[2]; 141 u8 wilc_groupkey; 142 143 /* mutexes */ 144 struct mutex scan_req_lock; 145 bool p2p_listen_state; 146 int scanned_cnt; 147 148 u64 inc_roc_cookie; 149 }; 150 151 #define MAX_TCP_SESSION 25 152 #define MAX_PENDING_ACKS 256 153 154 struct ack_session_info { 155 u32 seq_num; 156 u32 bigger_ack_num; 157 u16 src_port; 158 u16 dst_port; 159 u16 status; 160 }; 161 162 struct pending_acks { 163 u32 ack_num; 164 u32 session_index; 165 struct txq_entry_t *txqe; 166 }; 167 168 struct tcp_ack_filter { 169 struct ack_session_info ack_session_info[2 * MAX_TCP_SESSION]; 170 struct pending_acks pending_acks[MAX_PENDING_ACKS]; 171 u32 pending_base; 172 u32 tcp_session; 173 u32 pending_acks_idx; 174 bool enabled; 175 }; 176 177 struct wilc_vif { 178 u8 idx; 179 u8 iftype; 180 int monitor_flag; 181 int mac_opened; 182 u32 mgmt_reg_stypes; 183 struct net_device_stats netstats; 184 struct wilc *wilc; 185 u8 bssid[ETH_ALEN]; 186 struct host_if_drv *hif_drv; 187 struct net_device *ndev; 188 struct timer_list during_ip_timer; 189 struct timer_list periodic_rssi; 190 struct rf_info periodic_stat; 191 struct tcp_ack_filter ack_filter; 192 bool connecting; 193 struct wilc_priv priv; 194 struct list_head list; 195 struct cfg80211_bss *bss; 196 struct cfg80211_external_auth_params auth; 197 }; 198 199 struct wilc_tx_queue_status { 200 u8 buffer[AC_BUFFER_SIZE]; 201 u16 end_index; 202 u16 cnt[NQUEUES]; 203 u16 sum; 204 bool initialized; 205 }; 206 207 struct wilc { 208 struct wiphy *wiphy; 209 const struct wilc_hif_func *hif_func; 210 int io_type; 211 s8 mac_status; 212 struct clk *rtc_clk; 213 bool initialized; 214 u32 chipid; 215 bool power_save_mode; 216 int dev_irq_num; 217 int close; 218 u8 vif_num; 219 struct list_head vif_list; 220 221 /* protect vif list */ 222 struct mutex vif_mutex; 223 u8 open_ifcs; 224 225 /* protect head of transmit queue */ 226 struct mutex txq_add_to_head_cs; 227 228 /* protect txq_entry_t transmit queue */ 229 spinlock_t txq_spinlock; 230 231 /* protect rxq_entry_t receiver queue */ 232 struct mutex rxq_cs; 233 234 /* lock to protect hif access */ 235 struct mutex hif_cs; 236 237 struct completion cfg_event; 238 struct completion sync_event; 239 struct completion txq_event; 240 struct completion txq_thread_started; 241 242 struct task_struct *txq_thread; 243 244 int quit; 245 246 /* lock to protect issue of wid command to firmware */ 247 struct mutex cfg_cmd_lock; 248 struct wilc_cfg_frame cfg_frame; 249 u32 cfg_frame_offset; 250 u8 cfg_seq_no; 251 252 u8 *rx_buffer; 253 u32 rx_buffer_offset; 254 u8 *tx_buffer; 255 u32 *vmm_table; 256 257 struct txq_handle txq[NQUEUES]; 258 int txq_entries; 259 260 struct wilc_tx_queue_status tx_q_limit; 261 struct rxq_entry_t rxq_head; 262 263 const struct firmware *firmware; 264 265 struct device *dev; 266 bool suspend_event; 267 268 struct workqueue_struct *hif_workqueue; 269 struct wilc_cfg cfg; 270 void *bus_data; 271 struct net_device *monitor_dev; 272 273 /* deinit lock */ 274 struct mutex deinit_lock; 275 u8 sta_ch; 276 u8 op_ch; 277 struct ieee80211_channel channels[ARRAY_SIZE(wilc_2ghz_channels)]; 278 struct ieee80211_rate bitrates[ARRAY_SIZE(wilc_bitrates)]; 279 struct ieee80211_supported_band band; 280 u32 cipher_suites[ARRAY_SIZE(wilc_cipher_suites)]; 281 }; 282 283 struct wilc_wfi_mon_priv { 284 struct net_device *real_ndev; 285 }; 286 287 void wilc_frmw_to_host(struct wilc *wilc, u8 *buff, u32 size, u32 pkt_offset); 288 void wilc_mac_indicate(struct wilc *wilc); 289 void wilc_netdev_cleanup(struct wilc *wilc); 290 void wilc_wfi_mgmt_rx(struct wilc *wilc, u8 *buff, u32 size, bool is_auth); 291 void wilc_wlan_set_bssid(struct net_device *wilc_netdev, const u8 *bssid, 292 u8 mode); 293 struct wilc_vif *wilc_netdev_ifc_init(struct wilc *wl, const char *name, 294 int vif_type, enum nl80211_iftype type, 295 bool rtnl_locked); 296 #endif 297