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