netdev.h (6499B)
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 30struct 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 40struct wilc_wfi_key { 41 u8 *key; 42 u8 *seq; 43 int key_len; 44 int seq_len; 45 u32 cipher; 46}; 47 48struct wilc_wfi_wep_key { 49 u8 *key; 50 u8 key_len; 51 u8 key_idx; 52}; 53 54struct 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 */ 59struct wilc_wfi_p2p_listen_params { 60 struct ieee80211_channel *listen_ch; 61 u32 listen_duration; 62 u64 listen_cookie; 63}; 64 65static 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 82static 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 105static 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 120struct 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 155struct 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 163struct pending_acks { 164 u32 ack_num; 165 u32 session_index; 166 struct txq_entry_t *txqe; 167}; 168 169struct 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 178struct 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 200struct 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 208struct 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; 257 258 struct txq_handle txq[NQUEUES]; 259 int txq_entries; 260 261 struct wilc_tx_queue_status tx_q_limit; 262 struct rxq_entry_t rxq_head; 263 264 const struct firmware *firmware; 265 266 struct device *dev; 267 bool suspend_event; 268 269 struct workqueue_struct *hif_workqueue; 270 struct wilc_cfg cfg; 271 void *bus_data; 272 struct net_device *monitor_dev; 273 274 /* deinit lock */ 275 struct mutex deinit_lock; 276 u8 sta_ch; 277 u8 op_ch; 278 struct ieee80211_channel channels[ARRAY_SIZE(wilc_2ghz_channels)]; 279 struct ieee80211_rate bitrates[ARRAY_SIZE(wilc_bitrates)]; 280 struct ieee80211_supported_band band; 281 u32 cipher_suites[ARRAY_SIZE(wilc_cipher_suites)]; 282}; 283 284struct wilc_wfi_mon_priv { 285 struct net_device *real_ndev; 286}; 287 288void wilc_frmw_to_host(struct wilc *wilc, u8 *buff, u32 size, u32 pkt_offset); 289void wilc_mac_indicate(struct wilc *wilc); 290void wilc_netdev_cleanup(struct wilc *wilc); 291void wilc_wfi_mgmt_rx(struct wilc *wilc, u8 *buff, u32 size); 292void wilc_wlan_set_bssid(struct net_device *wilc_netdev, const u8 *bssid, 293 u8 mode); 294struct wilc_vif *wilc_netdev_ifc_init(struct wilc *wl, const char *name, 295 int vif_type, enum nl80211_iftype type, 296 bool rtnl_locked); 297#endif