1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * Common private data.
4 *
5 * Copyright (c) 2017-2020, Silicon Laboratories, Inc.
6 * Copyright (c) 2010, ST-Ericsson
7 * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
8 * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
9 */
10 #ifndef WFX_H
11 #define WFX_H
12
13 #include <linux/completion.h>
14 #include <linux/workqueue.h>
15 #include <linux/mutex.h>
16 #include <linux/nospec.h>
17 #include <net/mac80211.h>
18
19 #include "bh.h"
20 #include "data_tx.h"
21 #include "main.h"
22 #include "queue.h"
23 #include "hif_tx.h"
24
25 #define USEC_PER_TXOP 32 /* see struct ieee80211_tx_queue_params */
26 #define USEC_PER_TU 1024
27
28 struct wfx_hwbus_ops;
29
30 struct wfx_dev {
31 struct wfx_platform_data pdata;
32 struct device *dev;
33 struct ieee80211_hw *hw;
34 struct ieee80211_vif *vif[2];
35 struct mac_address addresses[2];
36 const struct wfx_hwbus_ops *hwbus_ops;
37 void *hwbus_priv;
38
39 u8 keyset;
40 struct completion firmware_ready;
41 struct wfx_hif_ind_startup hw_caps;
42 struct wfx_hif hif;
43 struct delayed_work cooling_timeout_work;
44 bool poll_irq;
45 bool chip_frozen;
46 struct mutex scan_lock;
47 struct mutex conf_mutex;
48
49 struct wfx_hif_cmd hif_cmd;
50 struct sk_buff_head tx_pending;
51 wait_queue_head_t tx_dequeue;
52 atomic_t tx_lock;
53
54 atomic_t packet_id;
55 u32 key_map;
56
57 struct wfx_hif_rx_stats rx_stats;
58 struct mutex rx_stats_lock;
59 struct wfx_hif_tx_power_loop_info tx_power_loop_info;
60 struct mutex tx_power_loop_info_lock;
61 struct workqueue_struct *bh_wq;
62 };
63
64 struct wfx_vif {
65 struct wfx_dev *wdev;
66 struct ieee80211_channel *channel;
67 int id;
68
69 u32 link_id_map;
70
71 bool after_dtim_tx_allowed;
72 bool join_in_progress;
73 struct completion set_pm_mode_complete;
74
75 struct delayed_work beacon_loss_work;
76
77 struct wfx_queue tx_queue[4];
78 struct wfx_tx_policy_cache tx_policy_cache;
79 struct work_struct tx_policy_upload_work;
80
81 struct work_struct update_tim_work;
82
83 unsigned long uapsd_mask;
84
85 struct work_struct scan_work;
86 struct completion scan_complete;
87 int scan_nb_chan_done;
88 bool scan_abort;
89 struct ieee80211_scan_request *scan_req;
90
91 struct ieee80211_channel *remain_on_channel_chan;
92 int remain_on_channel_duration;
93 struct work_struct remain_on_channel_work;
94 };
95
wvif_to_vif(struct wfx_vif * wvif)96 static inline struct ieee80211_vif *wvif_to_vif(struct wfx_vif *wvif)
97 {
98 return container_of((void *)wvif, struct ieee80211_vif, drv_priv);
99 }
100
wdev_to_wvif(struct wfx_dev * wdev,int vif_id)101 static inline struct wfx_vif *wdev_to_wvif(struct wfx_dev *wdev, int vif_id)
102 {
103 if (vif_id >= ARRAY_SIZE(wdev->vif)) {
104 dev_dbg(wdev->dev, "requesting non-existent vif: %d\n", vif_id);
105 return NULL;
106 }
107 vif_id = array_index_nospec(vif_id, ARRAY_SIZE(wdev->vif));
108 if (!wdev->vif[vif_id])
109 return NULL;
110 return (struct wfx_vif *)wdev->vif[vif_id]->drv_priv;
111 }
112
wvif_iterate(struct wfx_dev * wdev,struct wfx_vif * cur)113 static inline struct wfx_vif *wvif_iterate(struct wfx_dev *wdev, struct wfx_vif *cur)
114 {
115 int i;
116 int mark = 0;
117 struct wfx_vif *tmp;
118
119 if (!cur)
120 mark = 1;
121 for (i = 0; i < ARRAY_SIZE(wdev->vif); i++) {
122 tmp = wdev_to_wvif(wdev, i);
123 if (mark && tmp)
124 return tmp;
125 if (tmp == cur)
126 mark = 1;
127 }
128 return NULL;
129 }
130
wvif_count(struct wfx_dev * wdev)131 static inline int wvif_count(struct wfx_dev *wdev)
132 {
133 int i;
134 int ret = 0;
135 struct wfx_vif *wvif;
136
137 for (i = 0; i < ARRAY_SIZE(wdev->vif); i++) {
138 wvif = wdev_to_wvif(wdev, i);
139 if (wvif)
140 ret++;
141 }
142 return ret;
143 }
144
memreverse(u8 * src,u8 length)145 static inline void memreverse(u8 *src, u8 length)
146 {
147 u8 *lo = src;
148 u8 *hi = src + length - 1;
149 u8 swap;
150
151 while (lo < hi) {
152 swap = *lo;
153 *lo++ = *hi;
154 *hi-- = swap;
155 }
156 }
157
memzcmp(void * src,unsigned int size)158 static inline int memzcmp(void *src, unsigned int size)
159 {
160 u8 *buf = src;
161
162 if (!size)
163 return 0;
164 if (*buf)
165 return 1;
166 return memcmp(buf, buf + 1, size - 1);
167 }
168
169 #endif
170