1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /* Copyright (c) 2015-2016 Quantenna Communications. All rights reserved. */
3 
4 #ifndef _QTN_FMAC_CORE_H_
5 #define _QTN_FMAC_CORE_H_
6 
7 #include <linux/kernel.h>
8 #include <linux/module.h>
9 #include <linux/sched.h>
10 #include <linux/semaphore.h>
11 #include <linux/ip.h>
12 #include <linux/skbuff.h>
13 #include <linux/if_arp.h>
14 #include <linux/etherdevice.h>
15 #include <net/sock.h>
16 #include <net/lib80211.h>
17 #include <net/cfg80211.h>
18 #include <linux/vmalloc.h>
19 #include <linux/firmware.h>
20 #include <linux/ctype.h>
21 #include <linux/workqueue.h>
22 #include <linux/slab.h>
23 #include <linux/platform_device.h>
24 
25 #include "qlink.h"
26 #include "trans.h"
27 #include "qlink_util.h"
28 
29 #undef pr_fmt
30 #define pr_fmt(fmt)	KBUILD_MODNAME ": %s: " fmt, __func__
31 
32 #define QTNF_MAX_VSIE_LEN		255
33 #define QTNF_MAX_INTF			8
34 #define QTNF_MAX_EVENT_QUEUE_LEN	255
35 #define QTNF_SCAN_TIMEOUT_SEC		15
36 
37 #define QTNF_DEF_BSS_PRIORITY		0
38 #define QTNF_DEF_WDOG_TIMEOUT		5
39 #define QTNF_TX_TIMEOUT_TRSHLD		100
40 
41 extern const struct net_device_ops qtnf_netdev_ops;
42 
43 struct qtnf_bus;
44 struct qtnf_vif;
45 
46 struct qtnf_sta_node {
47 	struct list_head list;
48 	u8 mac_addr[ETH_ALEN];
49 };
50 
51 struct qtnf_sta_list {
52 	struct list_head head;
53 	atomic_t size;
54 };
55 
56 struct qtnf_vif {
57 	struct wireless_dev wdev;
58 	u8 bssid[ETH_ALEN];
59 	u8 mac_addr[ETH_ALEN];
60 	u8 vifid;
61 	u8 bss_priority;
62 	u8 bss_status;
63 	u16 mgmt_frames_bitmask;
64 	struct net_device *netdev;
65 	struct qtnf_wmac *mac;
66 
67 	struct work_struct reset_work;
68 	struct work_struct high_pri_tx_work;
69 	struct sk_buff_head high_pri_tx_queue;
70 	struct qtnf_sta_list sta_list;
71 	unsigned long cons_tx_timeout_cnt;
72 	int generation;
73 };
74 
75 struct qtnf_mac_info {
76 	u8 bands_cap;
77 	u8 num_tx_chain;
78 	u8 num_rx_chain;
79 	u16 max_ap_assoc_sta;
80 	u32 frag_thr;
81 	u32 rts_thr;
82 	u8 lretry_limit;
83 	u8 sretry_limit;
84 	u8 coverage_class;
85 	u8 radar_detect_widths;
86 	u8 max_scan_ssids;
87 	u16 max_acl_mac_addrs;
88 	struct ieee80211_ht_cap ht_cap_mod_mask;
89 	struct ieee80211_vht_cap vht_cap_mod_mask;
90 	struct ieee80211_iface_combination *if_comb;
91 	size_t n_if_comb;
92 	u8 *extended_capabilities;
93 	u8 *extended_capabilities_mask;
94 	u8 extended_capabilities_len;
95 	struct wiphy_wowlan_support *wowlan;
96 };
97 
98 struct qtnf_wmac {
99 	u8 macid;
100 	u8 wiphy_registered;
101 	u8 macaddr[ETH_ALEN];
102 	struct qtnf_bus *bus;
103 	struct qtnf_mac_info macinfo;
104 	struct qtnf_vif iflist[QTNF_MAX_INTF];
105 	struct cfg80211_scan_request *scan_req;
106 	struct mutex mac_lock;	/* lock during wmac speicific ops */
107 	struct delayed_work scan_timeout;
108 	struct ieee80211_regdomain *rd;
109 	struct platform_device *pdev;
110 };
111 
112 struct qtnf_hw_info {
113 	u32 ql_proto_ver;
114 	u8 num_mac;
115 	u8 mac_bitmap;
116 	u32 fw_ver;
117 	u8 total_tx_chain;
118 	u8 total_rx_chain;
119 	char fw_version[ETHTOOL_FWVERS_LEN];
120 	u32 hw_version;
121 	u8 hw_capab[QLINK_HW_CAPAB_NUM / BITS_PER_BYTE + 1];
122 };
123 
124 struct qtnf_vif *qtnf_mac_get_free_vif(struct qtnf_wmac *mac);
125 struct qtnf_vif *qtnf_mac_get_base_vif(struct qtnf_wmac *mac);
126 void qtnf_mac_iface_comb_free(struct qtnf_wmac *mac);
127 void qtnf_mac_ext_caps_free(struct qtnf_wmac *mac);
128 bool qtnf_slave_radar_get(void);
129 bool qtnf_dfs_offload_get(void);
130 struct wiphy *qtnf_wiphy_allocate(struct qtnf_bus *bus,
131 				  struct platform_device *pdev);
132 int qtnf_core_net_attach(struct qtnf_wmac *mac, struct qtnf_vif *priv,
133 			 const char *name, unsigned char name_assign_type);
134 void qtnf_main_work_queue(struct work_struct *work);
135 int qtnf_cmd_send_update_phy_params(struct qtnf_wmac *mac, u32 changed);
136 
137 struct qtnf_wmac *qtnf_core_get_mac(const struct qtnf_bus *bus, u8 macid);
138 struct net_device *qtnf_classify_skb(struct qtnf_bus *bus, struct sk_buff *skb);
139 void qtnf_wake_all_queues(struct net_device *ndev);
140 
141 void qtnf_virtual_intf_cleanup(struct net_device *ndev);
142 
143 void qtnf_netdev_updown(struct net_device *ndev, bool up);
144 void qtnf_scan_done(struct qtnf_wmac *mac, bool aborted);
145 struct dentry *qtnf_get_debugfs_dir(void);
146 bool qtnf_netdev_is_qtn(const struct net_device *ndev);
147 
qtnf_netdev_get_priv(struct net_device * dev)148 static inline struct qtnf_vif *qtnf_netdev_get_priv(struct net_device *dev)
149 {
150 	return *((void **)netdev_priv(dev));
151 }
152 
qtnf_hwcap_is_set(const struct qtnf_hw_info * info,unsigned int bit)153 static inline bool qtnf_hwcap_is_set(const struct qtnf_hw_info *info,
154 				     unsigned int bit)
155 {
156 	return qtnf_utils_is_bit_set(info->hw_capab, bit,
157 				     sizeof(info->hw_capab));
158 }
159 
160 #endif /* _QTN_FMAC_CORE_H_ */
161