1 /*
2 * Copyright (c) 2015-2016 Quantenna Communications, Inc.
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 */
16
17 #ifndef _QTN_FMAC_CORE_H_
18 #define _QTN_FMAC_CORE_H_
19
20 #include <linux/kernel.h>
21 #include <linux/module.h>
22 #include <linux/sched.h>
23 #include <linux/semaphore.h>
24 #include <linux/ip.h>
25 #include <linux/skbuff.h>
26 #include <linux/if_arp.h>
27 #include <linux/etherdevice.h>
28 #include <net/sock.h>
29 #include <net/lib80211.h>
30 #include <net/cfg80211.h>
31 #include <linux/vmalloc.h>
32 #include <linux/firmware.h>
33 #include <linux/ctype.h>
34 #include <linux/workqueue.h>
35 #include <linux/slab.h>
36
37 #include "qlink.h"
38 #include "trans.h"
39
40 #undef pr_fmt
41 #define pr_fmt(fmt) KBUILD_MODNAME ": %s: " fmt, __func__
42
43 #define QTNF_MAX_VSIE_LEN 255
44 #define QTNF_MAX_INTF 8
45 #define QTNF_MAX_EVENT_QUEUE_LEN 255
46 #define QTNF_SCAN_TIMEOUT_SEC 15
47
48 #define QTNF_DEF_BSS_PRIORITY 0
49 #define QTNF_DEF_WDOG_TIMEOUT 5
50 #define QTNF_TX_TIMEOUT_TRSHLD 100
51
52 extern const struct net_device_ops qtnf_netdev_ops;
53
54 struct qtnf_bus;
55 struct qtnf_vif;
56
57 struct qtnf_sta_node {
58 struct list_head list;
59 u8 mac_addr[ETH_ALEN];
60 };
61
62 struct qtnf_sta_list {
63 struct list_head head;
64 atomic_t size;
65 };
66
67 enum qtnf_sta_state {
68 QTNF_STA_DISCONNECTED,
69 QTNF_STA_CONNECTING,
70 QTNF_STA_CONNECTED
71 };
72
73 struct qtnf_vif {
74 struct wireless_dev wdev;
75 u8 bssid[ETH_ALEN];
76 u8 mac_addr[ETH_ALEN];
77 u8 vifid;
78 u8 bss_priority;
79 u8 bss_status;
80 enum qtnf_sta_state sta_state;
81 u16 mgmt_frames_bitmask;
82 struct net_device *netdev;
83 struct qtnf_wmac *mac;
84
85 struct work_struct reset_work;
86 struct qtnf_sta_list sta_list;
87 unsigned long cons_tx_timeout_cnt;
88 int generation;
89
90 struct pcpu_sw_netstats __percpu *stats64;
91 };
92
93 struct qtnf_mac_info {
94 u8 bands_cap;
95 u8 dev_mac[ETH_ALEN];
96 u8 num_tx_chain;
97 u8 num_rx_chain;
98 u16 max_ap_assoc_sta;
99 u32 frag_thr;
100 u32 rts_thr;
101 u8 lretry_limit;
102 u8 sretry_limit;
103 u8 coverage_class;
104 u8 radar_detect_widths;
105 u32 max_acl_mac_addrs;
106 struct ieee80211_ht_cap ht_cap_mod_mask;
107 struct ieee80211_vht_cap vht_cap_mod_mask;
108 struct ieee80211_iface_combination *if_comb;
109 size_t n_if_comb;
110 u8 *extended_capabilities;
111 u8 *extended_capabilities_mask;
112 u8 extended_capabilities_len;
113 struct wiphy_wowlan_support *wowlan;
114 };
115
116 struct qtnf_chan_stats {
117 u32 chan_num;
118 u32 cca_tx;
119 u32 cca_rx;
120 u32 cca_busy;
121 u32 cca_try;
122 s8 chan_noise;
123 };
124
125 struct qtnf_wmac {
126 u8 macid;
127 u8 wiphy_registered;
128 u8 macaddr[ETH_ALEN];
129 struct qtnf_bus *bus;
130 struct qtnf_mac_info macinfo;
131 struct qtnf_vif iflist[QTNF_MAX_INTF];
132 struct cfg80211_scan_request *scan_req;
133 struct mutex mac_lock; /* lock during wmac speicific ops */
134 struct delayed_work scan_timeout;
135 };
136
137 struct qtnf_hw_info {
138 u16 ql_proto_ver;
139 u8 num_mac;
140 u8 mac_bitmap;
141 u32 fw_ver;
142 u32 hw_capab;
143 struct ieee80211_regdomain *rd;
144 u8 total_tx_chain;
145 u8 total_rx_chain;
146 char fw_version[ETHTOOL_FWVERS_LEN];
147 u32 hw_version;
148 u8 max_scan_ssids;
149 };
150
151 struct qtnf_vif *qtnf_mac_get_free_vif(struct qtnf_wmac *mac);
152 struct qtnf_vif *qtnf_mac_get_base_vif(struct qtnf_wmac *mac);
153 void qtnf_mac_iface_comb_free(struct qtnf_wmac *mac);
154 struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus);
155 int qtnf_core_net_attach(struct qtnf_wmac *mac, struct qtnf_vif *priv,
156 const char *name, unsigned char name_assign_type);
157 void qtnf_main_work_queue(struct work_struct *work);
158 int qtnf_cmd_send_update_phy_params(struct qtnf_wmac *mac, u32 changed);
159 int qtnf_cmd_send_get_phy_params(struct qtnf_wmac *mac);
160
161 struct qtnf_wmac *qtnf_core_get_mac(const struct qtnf_bus *bus, u8 macid);
162 struct net_device *qtnf_classify_skb(struct qtnf_bus *bus, struct sk_buff *skb);
163 void qtnf_wake_all_queues(struct net_device *ndev);
164 void qtnf_update_rx_stats(struct net_device *ndev, const struct sk_buff *skb);
165 void qtnf_update_tx_stats(struct net_device *ndev, const struct sk_buff *skb);
166
167 void qtnf_virtual_intf_cleanup(struct net_device *ndev);
168
169 void qtnf_netdev_updown(struct net_device *ndev, bool up);
170 void qtnf_scan_done(struct qtnf_wmac *mac, bool aborted);
171
qtnf_netdev_get_priv(struct net_device * dev)172 static inline struct qtnf_vif *qtnf_netdev_get_priv(struct net_device *dev)
173 {
174 return *((void **)netdev_priv(dev));
175 }
176
177 #endif /* _QTN_FMAC_CORE_H_ */
178
