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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_H8#define WILC_NETDEV_H9 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#include <uapi/linux/if_ether.h>18 19#include "hif.h"20#include "wlan.h"21#include "wlan_cfg.h"22 23#define FLOW_CONTROL_LOWER_THRESHOLD 12824#define FLOW_CONTROL_UPPER_THRESHOLD 25625 26#define PMKID_FOUND 127#define NUM_STA_ASSOCIATED 828 29#define TCP_ACK_FILTER_LINK_SPEED_THRESH 5430#define DEFAULT_LINK_SPEED 7231 32#define TX_BACKOFF_WEIGHT_MS 133 34#define wilc_for_each_vif(w, v) \35 struct wilc *_w = w; \36 list_for_each_entry_srcu(v, &_w->vif_list, list, \37 srcu_read_lock_held(&_w->srcu))38 39struct wilc_wfi_stats {40 unsigned long rx_packets;41 unsigned long tx_packets;42 unsigned long rx_bytes;43 unsigned long tx_bytes;44 u64 rx_time;45 u64 tx_time;46 47};48 49struct wilc_wfi_key {50 u8 *key;51 u8 *seq;52 int key_len;53 int seq_len;54 u32 cipher;55};56 57struct sta_info {58 u8 sta_associated_bss[WILC_MAX_NUM_STA][ETH_ALEN];59};60 61/* Parameters needed for host interface for remaining on channel */62struct wilc_wfi_p2p_listen_params {63 struct ieee80211_channel *listen_ch;64 u32 listen_duration;65 u64 listen_cookie;66};67 68static const u32 wilc_cipher_suites[] = {69 WLAN_CIPHER_SUITE_TKIP,70 WLAN_CIPHER_SUITE_CCMP,71 WLAN_CIPHER_SUITE_AES_CMAC72};73 74#define CHAN2G(_channel, _freq, _flags) { \75 .band = NL80211_BAND_2GHZ, \76 .center_freq = (_freq), \77 .hw_value = (_channel), \78 .flags = (_flags), \79 .max_antenna_gain = 0, \80 .max_power = 30, \81}82 83static const struct ieee80211_channel wilc_2ghz_channels[] = {84 CHAN2G(1, 2412, 0),85 CHAN2G(2, 2417, 0),86 CHAN2G(3, 2422, 0),87 CHAN2G(4, 2427, 0),88 CHAN2G(5, 2432, 0),89 CHAN2G(6, 2437, 0),90 CHAN2G(7, 2442, 0),91 CHAN2G(8, 2447, 0),92 CHAN2G(9, 2452, 0),93 CHAN2G(10, 2457, 0),94 CHAN2G(11, 2462, 0),95 CHAN2G(12, 2467, 0),96 CHAN2G(13, 2472, 0),97 CHAN2G(14, 2484, 0)98};99 100#define RATETAB_ENT(_rate, _hw_value, _flags) { \101 .bitrate = (_rate), \102 .hw_value = (_hw_value), \103 .flags = (_flags), \104}105 106static struct ieee80211_rate wilc_bitrates[] = {107 RATETAB_ENT(10, 0, 0),108 RATETAB_ENT(20, 1, 0),109 RATETAB_ENT(55, 2, 0),110 RATETAB_ENT(110, 3, 0),111 RATETAB_ENT(60, 9, 0),112 RATETAB_ENT(90, 6, 0),113 RATETAB_ENT(120, 7, 0),114 RATETAB_ENT(180, 8, 0),115 RATETAB_ENT(240, 9, 0),116 RATETAB_ENT(360, 10, 0),117 RATETAB_ENT(480, 11, 0),118 RATETAB_ENT(540, 12, 0)119};120 121struct wilc_priv {122 struct wireless_dev wdev;123 struct cfg80211_scan_request *scan_req;124 125 struct wilc_wfi_p2p_listen_params remain_on_ch_params;126 u64 tx_cookie;127 128 bool cfg_scanning;129 130 u8 associated_bss[ETH_ALEN];131 struct sta_info assoc_stainfo;132 struct sk_buff *skb;133 struct net_device *dev;134 struct host_if_drv *hif_drv;135 struct wilc_pmkid_attr pmkid_list;136 137 /* The real interface that the monitor is on */138 struct net_device *real_ndev;139 struct wilc_wfi_key *wilc_gtk[WILC_MAX_NUM_STA];140 struct wilc_wfi_key *wilc_ptk[WILC_MAX_NUM_STA];141 struct wilc_wfi_key *wilc_igtk[2];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 25153#define MAX_PENDING_ACKS 256154 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 struct timer_list during_ip_timer;190 struct timer_list periodic_rssi;191 struct rf_info periodic_stat;192 struct tcp_ack_filter ack_filter;193 bool connecting;194 struct wilc_priv priv;195 struct list_head list;196 struct cfg80211_bss *bss;197 struct cfg80211_external_auth_params auth;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 /* Sleepable RCU struct to manipulate vif list. Sleepable version is225 * needed over the classic RCU version because the driver's current226 * design involves some sleeping code while manipulating a vif227 * retrieved from vif list (so in a SRCU critical section), like:228 * - sending commands to the chip, using info from retrieved vif229 * - registering a new monitoring net device230 */231 struct srcu_struct srcu;232 u8 open_ifcs;233 234 /* protect head of transmit queue */235 struct mutex txq_add_to_head_cs;236 237 /* protect txq_entry_t transmit queue */238 spinlock_t txq_spinlock;239 240 /* protect rxq_entry_t receiver queue */241 struct mutex rxq_cs;242 243 /* lock to protect hif access */244 struct mutex hif_cs;245 246 struct completion cfg_event;247 struct completion sync_event;248 struct completion txq_event;249 struct completion txq_thread_started;250 251 struct task_struct *txq_thread;252 253 int quit;254 255 /* lock to protect issue of wid command to firmware */256 struct mutex cfg_cmd_lock;257 struct wilc_cfg_frame cfg_frame;258 u32 cfg_frame_offset;259 u8 cfg_seq_no;260 261 u8 *rx_buffer;262 u32 rx_buffer_offset;263 u8 *tx_buffer;264 u32 *vmm_table;265 266 struct txq_handle txq[NQUEUES];267 int txq_entries;268 269 struct wilc_tx_queue_status tx_q_limit;270 struct rxq_entry_t rxq_head;271 272 const struct firmware *firmware;273 274 struct device *dev;275 276 struct workqueue_struct *hif_workqueue;277 struct wilc_cfg cfg;278 void *bus_data;279 struct net_device *monitor_dev;280 281 /* deinit lock */282 struct mutex deinit_lock;283 u8 sta_ch;284 u8 op_ch;285 struct ieee80211_channel channels[ARRAY_SIZE(wilc_2ghz_channels)];286 struct ieee80211_rate bitrates[ARRAY_SIZE(wilc_bitrates)];287 struct ieee80211_supported_band band;288 u32 cipher_suites[ARRAY_SIZE(wilc_cipher_suites)];289 u8 nv_mac_address[ETH_ALEN];290};291 292struct wilc_wfi_mon_priv {293 struct net_device *real_ndev;294};295 296void wilc_frmw_to_host(struct wilc *wilc, u8 *buff, u32 size, u32 pkt_offset);297void wilc_mac_indicate(struct wilc *wilc);298void wilc_netdev_cleanup(struct wilc *wilc);299void wilc_wfi_mgmt_rx(struct wilc *wilc, u8 *buff, u32 size, bool is_auth);300void wilc_wlan_set_bssid(struct net_device *wilc_netdev, const u8 *bssid,301 u8 mode);302struct wilc_vif *wilc_netdev_ifc_init(struct wilc *wl, const char *name,303 int vif_type, enum nl80211_iftype type,304 bool rtnl_locked);305#endif306