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 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 hwbus_ops *hwbus_ops;
37 void *hwbus_priv;
38
39 u8 keyset;
40 struct completion firmware_ready;
41 struct 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 hif_rx_stats rx_stats;
57 struct mutex rx_stats_lock;
58 struct hif_tx_power_loop_info tx_power_loop_info;
59 struct mutex tx_power_loop_info_lock;
60 int force_ps_timeout;
61 };
62
63 struct wfx_vif {
64 struct wfx_dev *wdev;
65 struct ieee80211_vif *vif;
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
74 struct delayed_work beacon_loss_work;
75
76 struct wfx_queue tx_queue[4];
77 struct tx_policy_cache tx_policy_cache;
78 struct work_struct tx_policy_upload_work;
79
80 struct work_struct update_tim_work;
81
82 unsigned long uapsd_mask;
83
84 /* avoid some operations in parallel with scan */
85 struct mutex scan_lock;
86 struct work_struct scan_work;
87 struct completion scan_complete;
88 int scan_nb_chan_done;
89 bool scan_abort;
90 struct ieee80211_scan_request *scan_req;
91
92 struct completion set_pm_mode_complete;
93 };
94
wdev_to_wvif(struct wfx_dev * wdev,int vif_id)95 static inline struct wfx_vif *wdev_to_wvif(struct wfx_dev *wdev, int vif_id)
96 {
97 if (vif_id >= ARRAY_SIZE(wdev->vif)) {
98 dev_dbg(wdev->dev, "requesting non-existent vif: %d\n", vif_id);
99 return NULL;
100 }
101 vif_id = array_index_nospec(vif_id, ARRAY_SIZE(wdev->vif));
102 if (!wdev->vif[vif_id])
103 return NULL;
104 return (struct wfx_vif *)wdev->vif[vif_id]->drv_priv;
105 }
106
wvif_iterate(struct wfx_dev * wdev,struct wfx_vif * cur)107 static inline struct wfx_vif *wvif_iterate(struct wfx_dev *wdev,
108 struct wfx_vif *cur)
109 {
110 int i;
111 int mark = 0;
112 struct wfx_vif *tmp;
113
114 if (!cur)
115 mark = 1;
116 for (i = 0; i < ARRAY_SIZE(wdev->vif); i++) {
117 tmp = wdev_to_wvif(wdev, i);
118 if (mark && tmp)
119 return tmp;
120 if (tmp == cur)
121 mark = 1;
122 }
123 return NULL;
124 }
125
wvif_count(struct wfx_dev * wdev)126 static inline int wvif_count(struct wfx_dev *wdev)
127 {
128 int i;
129 int ret = 0;
130 struct wfx_vif *wvif;
131
132 for (i = 0; i < ARRAY_SIZE(wdev->vif); i++) {
133 wvif = wdev_to_wvif(wdev, i);
134 if (wvif)
135 ret++;
136 }
137 return ret;
138 }
139
memreverse(u8 * src,u8 length)140 static inline void memreverse(u8 *src, u8 length)
141 {
142 u8 *lo = src;
143 u8 *hi = src + length - 1;
144 u8 swap;
145
146 while (lo < hi) {
147 swap = *lo;
148 *lo++ = *hi;
149 *hi-- = swap;
150 }
151 }
152
memzcmp(void * src,unsigned int size)153 static inline int memzcmp(void *src, unsigned int size)
154 {
155 u8 *buf = src;
156
157 if (!size)
158 return 0;
159 if (*buf)
160 return 1;
161 return memcmp(buf, buf + 1, size - 1);
162 }
163
164 #endif
165