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 struct wilc_wfi_stats { 31 unsigned long rx_packets; 32 unsigned long tx_packets; 33 unsigned long rx_bytes; 34 unsigned long tx_bytes; 35 u64 rx_time; 36 u64 tx_time; 37 38 }; 39 40 struct wilc_wfi_key { 41 u8 *key; 42 u8 *seq; 43 int key_len; 44 int seq_len; 45 u32 cipher; 46 }; 47 48 struct wilc_wfi_wep_key { 49 u8 *key; 50 u8 key_len; 51 u8 key_idx; 52 }; 53 54 struct sta_info { 55 u8 sta_associated_bss[WILC_MAX_NUM_STA][ETH_ALEN]; 56 }; 57 58 /* Parameters needed for host interface for remaining on channel */ 59 struct wilc_wfi_p2p_listen_params { 60 struct ieee80211_channel *listen_ch; 61 u32 listen_duration; 62 u64 listen_cookie; 63 }; 64 65 static const u32 wilc_cipher_suites[] = { 66 WLAN_CIPHER_SUITE_WEP40, 67 WLAN_CIPHER_SUITE_WEP104, 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 u8 wep_key[4][WLAN_KEY_LEN_WEP104]; 136 u8 wep_key_len[4]; 137 138 /* The real interface that the monitor is on */ 139 struct net_device *real_ndev; 140 struct wilc_wfi_key *wilc_gtk[WILC_MAX_NUM_STA]; 141 struct wilc_wfi_key *wilc_ptk[WILC_MAX_NUM_STA]; 142 u8 wilc_groupkey; 143 144 /* mutexes */ 145 struct mutex scan_req_lock; 146 bool p2p_listen_state; 147 int scanned_cnt; 148 149 u64 inc_roc_cookie; 150 }; 151 152 #define MAX_TCP_SESSION 25 153 #define MAX_PENDING_ACKS 256 154 155 struct ack_session_info { 156 u32 seq_num; 157 u32 bigger_ack_num; 158 u16 src_port; 159 u16 dst_port; 160 u16 status; 161 }; 162 163 struct pending_acks { 164 u32 ack_num; 165 u32 session_index; 166 struct txq_entry_t *txqe; 167 }; 168 169 struct tcp_ack_filter { 170 struct ack_session_info ack_session_info[2 * MAX_TCP_SESSION]; 171 struct pending_acks pending_acks[MAX_PENDING_ACKS]; 172 u32 pending_base; 173 u32 tcp_session; 174 u32 pending_acks_idx; 175 bool enabled; 176 }; 177 178 struct wilc_vif { 179 u8 idx; 180 u8 iftype; 181 int monitor_flag; 182 int mac_opened; 183 u32 mgmt_reg_stypes; 184 struct net_device_stats netstats; 185 struct wilc *wilc; 186 u8 bssid[ETH_ALEN]; 187 struct host_if_drv *hif_drv; 188 struct net_device *ndev; 189 u8 mode; 190 struct timer_list during_ip_timer; 191 struct timer_list periodic_rssi; 192 struct rf_info periodic_stat; 193 struct tcp_ack_filter ack_filter; 194 bool connecting; 195 struct wilc_priv priv; 196 struct list_head list; 197 struct cfg80211_bss *bss; 198 }; 199 200 struct wilc_tx_queue_status { 201 u8 buffer[AC_BUFFER_SIZE]; 202 u16 end_index; 203 u16 cnt[NQUEUES]; 204 u16 sum; 205 bool initialized; 206 }; 207 208 struct wilc { 209 struct wiphy *wiphy; 210 const struct wilc_hif_func *hif_func; 211 int io_type; 212 s8 mac_status; 213 struct clk *rtc_clk; 214 bool initialized; 215 u32 chipid; 216 bool power_save_mode; 217 int dev_irq_num; 218 int close; 219 u8 vif_num; 220 struct list_head vif_list; 221 222 /* protect vif list */ 223 struct mutex vif_mutex; 224 struct srcu_struct srcu; 225 u8 open_ifcs; 226 227 /* protect head of transmit queue */ 228 struct mutex txq_add_to_head_cs; 229 230 /* protect txq_entry_t transmit queue */ 231 spinlock_t txq_spinlock; 232 233 /* protect rxq_entry_t receiver queue */ 234 struct mutex rxq_cs; 235 236 /* lock to protect hif access */ 237 struct mutex hif_cs; 238 239 struct completion cfg_event; 240 struct completion sync_event; 241 struct completion txq_event; 242 struct completion txq_thread_started; 243 244 struct task_struct *txq_thread; 245 246 int quit; 247 248 /* lock to protect issue of wid command to firmware */ 249 struct mutex cfg_cmd_lock; 250 struct wilc_cfg_frame cfg_frame; 251 u32 cfg_frame_offset; 252 u8 cfg_seq_no; 253 254 u8 *rx_buffer; 255 u32 rx_buffer_offset; 256 u8 *tx_buffer; 257 u32 *vmm_table; 258 259 struct txq_handle txq[NQUEUES]; 260 int txq_entries; 261 262 struct wilc_tx_queue_status tx_q_limit; 263 struct rxq_entry_t rxq_head; 264 265 const struct firmware *firmware; 266 267 struct device *dev; 268 bool suspend_event; 269 270 struct workqueue_struct *hif_workqueue; 271 struct wilc_cfg cfg; 272 void *bus_data; 273 struct net_device *monitor_dev; 274 275 /* deinit lock */ 276 struct mutex deinit_lock; 277 u8 sta_ch; 278 u8 op_ch; 279 struct ieee80211_channel channels[ARRAY_SIZE(wilc_2ghz_channels)]; 280 struct ieee80211_rate bitrates[ARRAY_SIZE(wilc_bitrates)]; 281 struct ieee80211_supported_band band; 282 u32 cipher_suites[ARRAY_SIZE(wilc_cipher_suites)]; 283 }; 284 285 struct wilc_wfi_mon_priv { 286 struct net_device *real_ndev; 287 }; 288 289 void wilc_frmw_to_host(struct wilc *wilc, u8 *buff, u32 size, u32 pkt_offset); 290 void wilc_mac_indicate(struct wilc *wilc); 291 void wilc_netdev_cleanup(struct wilc *wilc); 292 void wilc_wfi_mgmt_rx(struct wilc *wilc, u8 *buff, u32 size); 293 void wilc_wlan_set_bssid(struct net_device *wilc_netdev, const u8 *bssid, 294 u8 mode); 295 struct wilc_vif *wilc_netdev_ifc_init(struct wilc *wl, const char *name, 296 int vif_type, enum nl80211_iftype type, 297 bool rtnl_locked); 298 #endif 299