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_WFI_NETDEVICE 8 #define WILC_WFI_NETDEVICE 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 "host_interface.h" 18 #include "wilc_wlan.h" 19 20 #define FLOW_CONTROL_LOWER_THRESHOLD 128 21 #define FLOW_CONTROL_UPPER_THRESHOLD 256 22 23 #define WILC_MAX_NUM_PMKIDS 16 24 #define PMKID_LEN 16 25 #define PMKID_FOUND 1 26 #define NUM_STA_ASSOCIATED 8 27 28 #define NUM_REG_FRAME 2 29 30 #define TCP_ACK_FILTER_LINK_SPEED_THRESH 54 31 #define DEFAULT_LINK_SPEED 72 32 33 #define GET_PKT_OFFSET(a) (((a) >> 22) & 0x1ff) 34 35 struct wilc_wfi_stats { 36 unsigned long rx_packets; 37 unsigned long tx_packets; 38 unsigned long rx_bytes; 39 unsigned long tx_bytes; 40 u64 rx_time; 41 u64 tx_time; 42 43 }; 44 45 struct wilc_wfi_key { 46 u8 *key; 47 u8 *seq; 48 int key_len; 49 int seq_len; 50 u32 cipher; 51 }; 52 53 struct wilc_wfi_wep_key { 54 u8 *key; 55 u8 key_len; 56 u8 key_idx; 57 }; 58 59 struct sta_info { 60 u8 sta_associated_bss[MAX_NUM_STA][ETH_ALEN]; 61 }; 62 63 /*Parameters needed for host interface for remaining on channel*/ 64 struct wilc_wfi_p2p_listen_params { 65 struct ieee80211_channel *listen_ch; 66 u32 listen_duration; 67 u64 listen_cookie; 68 u32 listen_session_id; 69 }; 70 71 struct wilc_priv { 72 struct wireless_dev *wdev; 73 struct cfg80211_scan_request *scan_req; 74 75 struct wilc_wfi_p2p_listen_params remain_on_ch_params; 76 u64 tx_cookie; 77 78 bool cfg_scanning; 79 u32 rcvd_ch_cnt; 80 81 u8 associated_bss[ETH_ALEN]; 82 struct sta_info assoc_stainfo; 83 struct sk_buff *skb; 84 struct net_device *dev; 85 struct host_if_drv *hif_drv; 86 struct host_if_pmkid_attr pmkid_list; 87 u8 wep_key[4][WLAN_KEY_LEN_WEP104]; 88 u8 wep_key_len[4]; 89 /* The real interface that the monitor is on */ 90 struct net_device *real_ndev; 91 struct wilc_wfi_key *wilc_gtk[MAX_NUM_STA]; 92 struct wilc_wfi_key *wilc_ptk[MAX_NUM_STA]; 93 u8 wilc_groupkey; 94 /* mutexes */ 95 struct mutex scan_req_lock; 96 bool p2p_listen_state; 97 98 }; 99 100 struct frame_reg { 101 u16 type; 102 bool reg; 103 }; 104 105 struct wilc_vif { 106 u8 idx; 107 u8 iftype; 108 int monitor_flag; 109 int mac_opened; 110 struct frame_reg frame_reg[NUM_REG_FRAME]; 111 struct net_device_stats netstats; 112 struct wilc *wilc; 113 u8 src_addr[ETH_ALEN]; 114 u8 bssid[ETH_ALEN]; 115 struct host_if_drv *hif_drv; 116 struct net_device *ndev; 117 u8 mode; 118 u8 ifc_id; 119 }; 120 121 struct wilc { 122 const struct wilc_hif_func *hif_func; 123 int io_type; 124 int mac_status; 125 struct gpio_desc *gpio_irq; 126 bool initialized; 127 int dev_irq_num; 128 int close; 129 u8 vif_num; 130 struct wilc_vif *vif[NUM_CONCURRENT_IFC]; 131 u8 open_ifcs; 132 /*protect head of transmit queue*/ 133 struct mutex txq_add_to_head_cs; 134 /*protect txq_entry_t transmit queue*/ 135 spinlock_t txq_spinlock; 136 /*protect rxq_entry_t receiver queue*/ 137 struct mutex rxq_cs; 138 /* lock to protect hif access */ 139 struct mutex hif_cs; 140 141 struct completion cfg_event; 142 struct completion sync_event; 143 struct completion txq_event; 144 struct completion txq_thread_started; 145 146 struct task_struct *txq_thread; 147 148 int quit; 149 int cfg_frame_in_use; 150 struct wilc_cfg_frame cfg_frame; 151 u32 cfg_frame_offset; 152 int cfg_seq_no; 153 154 u8 *rx_buffer; 155 u32 rx_buffer_offset; 156 u8 *tx_buffer; 157 158 struct txq_entry_t txq_head; 159 int txq_entries; 160 161 struct rxq_entry_t rxq_head; 162 163 const struct firmware *firmware; 164 165 struct device *dev; 166 bool suspend_event; 167 168 struct rf_info dummy_statistics; 169 }; 170 171 struct wilc_wfi_mon_priv { 172 struct net_device *real_ndev; 173 }; 174 175 void wilc_frmw_to_linux(struct wilc *wilc, u8 *buff, u32 size, u32 pkt_offset); 176 void wilc_mac_indicate(struct wilc *wilc); 177 void wilc_netdev_cleanup(struct wilc *wilc); 178 int wilc_netdev_init(struct wilc **wilc, struct device *dev, int io_type, 179 const struct wilc_hif_func *ops); 180 void wilc_wfi_mgmt_rx(struct wilc *wilc, u8 *buff, u32 size); 181 int wilc_wlan_set_bssid(struct net_device *wilc_netdev, u8 *bssid, u8 mode); 182 183 #endif 184
