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 conf_mutex;
47
48 struct wfx_hif_cmd hif_cmd;
49 struct sk_buff_head tx_pending;
50 wait_queue_head_t tx_dequeue;
51 atomic_t tx_lock;
52
53 atomic_t packet_id;
54 u32 key_map;
55
56 struct wfx_hif_rx_stats rx_stats;
57 struct mutex rx_stats_lock;
58 struct wfx_hif_tx_power_loop_info tx_power_loop_info;
59 struct mutex tx_power_loop_info_lock;
60 struct workqueue_struct *bh_wq;
61 };
62
63 struct wfx_vif {
64 struct wfx_dev *wdev;
65 struct ieee80211_channel *channel;
66 int id;
67
68 u32 link_id_map;
69
70 bool after_dtim_tx_allowed;
71 bool join_in_progress;
72
73 struct delayed_work beacon_loss_work;
74
75 struct wfx_queue tx_queue[4];
76 struct wfx_tx_policy_cache tx_policy_cache;
77 struct work_struct tx_policy_upload_work;
78
79 struct work_struct update_tim_work;
80
81 unsigned long uapsd_mask;
82
83 /* avoid some operations in parallel with scan */
84 struct mutex scan_lock;
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 completion set_pm_mode_complete;
92 };
93
wvif_to_vif(struct wfx_vif * wvif)94 static inline struct ieee80211_vif *wvif_to_vif(struct wfx_vif *wvif)
95 {
96 return container_of((void *)wvif, struct ieee80211_vif, drv_priv);
97 }
98
wdev_to_wvif(struct wfx_dev * wdev,int vif_id)99 static inline struct wfx_vif *wdev_to_wvif(struct wfx_dev *wdev, int vif_id)
100 {
101 if (vif_id >= ARRAY_SIZE(wdev->vif)) {
102 dev_dbg(wdev->dev, "requesting non-existent vif: %d\n", vif_id);
103 return NULL;
104 }
105 vif_id = array_index_nospec(vif_id, ARRAY_SIZE(wdev->vif));
106 if (!wdev->vif[vif_id])
107 return NULL;
108 return (struct wfx_vif *)wdev->vif[vif_id]->drv_priv;
109 }
110
wvif_iterate(struct wfx_dev * wdev,struct wfx_vif * cur)111 static inline struct wfx_vif *wvif_iterate(struct wfx_dev *wdev, struct wfx_vif *cur)
112 {
113 int i;
114 int mark = 0;
115 struct wfx_vif *tmp;
116
117 if (!cur)
118 mark = 1;
119 for (i = 0; i < ARRAY_SIZE(wdev->vif); i++) {
120 tmp = wdev_to_wvif(wdev, i);
121 if (mark && tmp)
122 return tmp;
123 if (tmp == cur)
124 mark = 1;
125 }
126 return NULL;
127 }
128
wvif_count(struct wfx_dev * wdev)129 static inline int wvif_count(struct wfx_dev *wdev)
130 {
131 int i;
132 int ret = 0;
133 struct wfx_vif *wvif;
134
135 for (i = 0; i < ARRAY_SIZE(wdev->vif); i++) {
136 wvif = wdev_to_wvif(wdev, i);
137 if (wvif)
138 ret++;
139 }
140 return ret;
141 }
142
memreverse(u8 * src,u8 length)143 static inline void memreverse(u8 *src, u8 length)
144 {
145 u8 *lo = src;
146 u8 *hi = src + length - 1;
147 u8 swap;
148
149 while (lo < hi) {
150 swap = *lo;
151 *lo++ = *hi;
152 *hi-- = swap;
153 }
154 }
155
memzcmp(void * src,unsigned int size)156 static inline int memzcmp(void *src, unsigned int size)
157 {
158 u8 *buf = src;
159
160 if (!size)
161 return 0;
162 if (*buf)
163 return 1;
164 return memcmp(buf, buf + 1, size - 1);
165 }
166
167 #endif
168