diff options
Diffstat (limited to 'drivers/net/wireless/microchip/wilc1000/netdev.h')
| -rw-r--r-- | drivers/net/wireless/microchip/wilc1000/netdev.h | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/drivers/net/wireless/microchip/wilc1000/netdev.h b/drivers/net/wireless/microchip/wilc1000/netdev.h new file mode 100644 index 000000000000..d0a006b68d08 --- /dev/null +++ b/drivers/net/wireless/microchip/wilc1000/netdev.h @@ -0,0 +1,287 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2012 - 2018 Microchip Technology Inc., and its subsidiaries. + * All rights reserved. + */ + +#ifndef WILC_NETDEV_H +#define WILC_NETDEV_H + +#include <linux/tcp.h> +#include <linux/ieee80211.h> +#include <net/cfg80211.h> +#include <net/ieee80211_radiotap.h> +#include <linux/if_arp.h> +#include <linux/gpio/consumer.h> + +#include "hif.h" +#include "wlan.h" +#include "wlan_cfg.h" + +#define FLOW_CONTROL_LOWER_THRESHOLD 128 +#define FLOW_CONTROL_UPPER_THRESHOLD 256 + +#define PMKID_FOUND 1 +#define NUM_STA_ASSOCIATED 8 + +#define TCP_ACK_FILTER_LINK_SPEED_THRESH 54 +#define DEFAULT_LINK_SPEED 72 + +struct wilc_wfi_stats { + unsigned long rx_packets; + unsigned long tx_packets; + unsigned long rx_bytes; + unsigned long tx_bytes; + u64 rx_time; + u64 tx_time; + +}; + +struct wilc_wfi_key { + u8 *key; + u8 *seq; + int key_len; + int seq_len; + u32 cipher; +}; + +struct wilc_wfi_wep_key { + u8 *key; + u8 key_len; + u8 key_idx; +}; + +struct sta_info { + u8 sta_associated_bss[WILC_MAX_NUM_STA][ETH_ALEN]; +}; + +/* Parameters needed for host interface for remaining on channel */ +struct wilc_wfi_p2p_listen_params { + struct ieee80211_channel *listen_ch; + u32 listen_duration; + u64 listen_cookie; +}; + +static const u32 wilc_cipher_suites[] = { + WLAN_CIPHER_SUITE_WEP40, + WLAN_CIPHER_SUITE_WEP104, + WLAN_CIPHER_SUITE_TKIP, + WLAN_CIPHER_SUITE_CCMP, + WLAN_CIPHER_SUITE_AES_CMAC +}; + +#define CHAN2G(_channel, _freq, _flags) { \ + .band = NL80211_BAND_2GHZ, \ + .center_freq = (_freq), \ + .hw_value = (_channel), \ + .flags = (_flags), \ + .max_antenna_gain = 0, \ + .max_power = 30, \ +} + +static const struct ieee80211_channel wilc_2ghz_channels[] = { + CHAN2G(1, 2412, 0), + CHAN2G(2, 2417, 0), + CHAN2G(3, 2422, 0), + CHAN2G(4, 2427, 0), + CHAN2G(5, 2432, 0), + CHAN2G(6, 2437, 0), + CHAN2G(7, 2442, 0), + CHAN2G(8, 2447, 0), + CHAN2G(9, 2452, 0), + CHAN2G(10, 2457, 0), + CHAN2G(11, 2462, 0), + CHAN2G(12, 2467, 0), + CHAN2G(13, 2472, 0), + CHAN2G(14, 2484, 0) +}; + +#define RATETAB_ENT(_rate, _hw_value, _flags) { \ + .bitrate = (_rate), \ + .hw_value = (_hw_value), \ + .flags = (_flags), \ +} + +static struct ieee80211_rate wilc_bitrates[] = { + RATETAB_ENT(10, 0, 0), + RATETAB_ENT(20, 1, 0), + RATETAB_ENT(55, 2, 0), + RATETAB_ENT(110, 3, 0), + RATETAB_ENT(60, 9, 0), + RATETAB_ENT(90, 6, 0), + RATETAB_ENT(120, 7, 0), + RATETAB_ENT(180, 8, 0), + RATETAB_ENT(240, 9, 0), + RATETAB_ENT(360, 10, 0), + RATETAB_ENT(480, 11, 0), + RATETAB_ENT(540, 12, 0) +}; + +struct wilc_priv { + struct wireless_dev wdev; + struct cfg80211_scan_request *scan_req; + + struct wilc_wfi_p2p_listen_params remain_on_ch_params; + u64 tx_cookie; + + bool cfg_scanning; + + u8 associated_bss[ETH_ALEN]; + struct sta_info assoc_stainfo; + struct sk_buff *skb; + struct net_device *dev; + struct host_if_drv *hif_drv; + struct wilc_pmkid_attr pmkid_list; + u8 wep_key[4][WLAN_KEY_LEN_WEP104]; + u8 wep_key_len[4]; + + /* The real interface that the monitor is on */ + struct net_device *real_ndev; + struct wilc_wfi_key *wilc_gtk[WILC_MAX_NUM_STA]; + struct wilc_wfi_key *wilc_ptk[WILC_MAX_NUM_STA]; + u8 wilc_groupkey; + + /* mutexes */ + struct mutex scan_req_lock; + bool p2p_listen_state; + int scanned_cnt; + + u64 inc_roc_cookie; +}; + +#define MAX_TCP_SESSION 25 +#define MAX_PENDING_ACKS 256 + +struct ack_session_info { + u32 seq_num; + u32 bigger_ack_num; + u16 src_port; + u16 dst_port; + u16 status; +}; + +struct pending_acks { + u32 ack_num; + u32 session_index; + struct txq_entry_t *txqe; +}; + +struct tcp_ack_filter { + struct ack_session_info ack_session_info[2 * MAX_TCP_SESSION]; + struct pending_acks pending_acks[MAX_PENDING_ACKS]; + u32 pending_base; + u32 tcp_session; + u32 pending_acks_idx; + bool enabled; +}; + +struct wilc_vif { + u8 idx; + u8 iftype; + int monitor_flag; + int mac_opened; + u32 mgmt_reg_stypes; + struct net_device_stats netstats; + struct wilc *wilc; + u8 bssid[ETH_ALEN]; + struct host_if_drv *hif_drv; + struct net_device *ndev; + u8 mode; + struct timer_list during_ip_timer; + struct timer_list periodic_rssi; + struct rf_info periodic_stat; + struct tcp_ack_filter ack_filter; + bool connecting; + struct wilc_priv priv; + struct list_head list; + struct cfg80211_bss *bss; +}; + +struct wilc { + struct wiphy *wiphy; + const struct wilc_hif_func *hif_func; + int io_type; + s8 mac_status; + struct clk *rtc_clk; + bool initialized; + int dev_irq_num; + int close; + u8 vif_num; + struct list_head vif_list; + + /* protect vif list */ + struct mutex vif_mutex; + struct srcu_struct srcu; + u8 open_ifcs; + + /* protect head of transmit queue */ + struct mutex txq_add_to_head_cs; + + /* protect txq_entry_t transmit queue */ + spinlock_t txq_spinlock; + + /* protect rxq_entry_t receiver queue */ + struct mutex rxq_cs; + + /* lock to protect hif access */ + struct mutex hif_cs; + + struct completion cfg_event; + struct completion sync_event; + struct completion txq_event; + struct completion txq_thread_started; + + struct task_struct *txq_thread; + + int quit; + + /* lock to protect issue of wid command to firmware */ + struct mutex cfg_cmd_lock; + struct wilc_cfg_frame cfg_frame; + u32 cfg_frame_offset; + u8 cfg_seq_no; + + u8 *rx_buffer; + u32 rx_buffer_offset; + u8 *tx_buffer; + + struct txq_entry_t txq_head; + int txq_entries; + + struct rxq_entry_t rxq_head; + + const struct firmware *firmware; + + struct device *dev; + bool suspend_event; + + int clients_count; + struct workqueue_struct *hif_workqueue; + enum chip_ps_states chip_ps_state; + struct wilc_cfg cfg; + void *bus_data; + struct net_device *monitor_dev; + + /* deinit lock */ + struct mutex deinit_lock; + u8 sta_ch; + u8 op_ch; + struct ieee80211_channel channels[ARRAY_SIZE(wilc_2ghz_channels)]; + struct ieee80211_rate bitrates[ARRAY_SIZE(wilc_bitrates)]; + struct ieee80211_supported_band band; + u32 cipher_suites[ARRAY_SIZE(wilc_cipher_suites)]; +}; + +struct wilc_wfi_mon_priv { + struct net_device *real_ndev; +}; + +void wilc_frmw_to_host(struct wilc *wilc, u8 *buff, u32 size, u32 pkt_offset); +void wilc_mac_indicate(struct wilc *wilc); +void wilc_netdev_cleanup(struct wilc *wilc); +void wilc_wfi_mgmt_rx(struct wilc *wilc, u8 *buff, u32 size); +void wilc_wlan_set_bssid(struct net_device *wilc_netdev, u8 *bssid, u8 mode); +struct wilc_vif *wilc_netdev_ifc_init(struct wilc *wl, const char *name, + int vif_type, enum nl80211_iftype type, + bool rtnl_locked); +#endif |