summaryrefslogtreecommitdiff
path: root/drivers/staging/wfx/wfx.h
blob: 38e24d7f72f24d36905c0b258a4cfb4d7a404f77 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Common private data for Silicon Labs WFx chips.
 *
 * Copyright (c) 2017-2019, Silicon Laboratories, Inc.
 * Copyright (c) 2010, ST-Ericsson
 * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
 * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
 */
#ifndef WFX_H
#define WFX_H

#include <linux/completion.h>
#include <linux/workqueue.h>
#include <linux/mutex.h>
#include <linux/nospec.h>
#include <net/mac80211.h>

#include "bh.h"
#include "data_tx.h"
#include "main.h"
#include "queue.h"
#include "secure_link.h"
#include "hif_tx.h"

#define USEC_PER_TXOP 32 // see struct ieee80211_tx_queue_params
#define USEC_PER_TU 1024

struct hwbus_ops;

struct wfx_dev {
	struct wfx_platform_data pdata;
	struct device		*dev;
	struct ieee80211_hw	*hw;
	struct ieee80211_vif	*vif[2];
	struct mac_address	addresses[2];
	const struct hwbus_ops	*hwbus_ops;
	void			*hwbus_priv;

	u8			keyset;
	struct completion	firmware_ready;
	struct hif_ind_startup	hw_caps;
	struct wfx_hif		hif;
	struct sl_context	sl;
	struct delayed_work	cooling_timeout_work;
	bool			poll_irq;
	bool			chip_frozen;
	struct mutex		conf_mutex;

	struct wfx_hif_cmd	hif_cmd;
	struct sk_buff_head	tx_pending;
	wait_queue_head_t	tx_dequeue;
	atomic_t		tx_lock;

	atomic_t		packet_id;
	u32			key_map;

	struct hif_rx_stats	rx_stats;
	struct mutex		rx_stats_lock;
	struct hif_tx_power_loop_info tx_power_loop_info;
	struct mutex		tx_power_loop_info_lock;
	int			force_ps_timeout;
};

struct wfx_vif {
	struct wfx_dev		*wdev;
	struct ieee80211_vif	*vif;
	struct ieee80211_channel *channel;
	int			id;

	u32			link_id_map;

	bool			after_dtim_tx_allowed;
	bool			join_in_progress;

	struct delayed_work	beacon_loss_work;

	struct wfx_queue	tx_queue[4];
	struct tx_policy_cache	tx_policy_cache;
	struct work_struct	tx_policy_upload_work;

	struct work_struct	update_tim_work;

	int			filter_mcast_count;
	u8			filter_mcast_addr[8][ETH_ALEN];

	unsigned long		uapsd_mask;

	/* avoid some operations in parallel with scan */
	struct mutex		scan_lock;
	struct work_struct	scan_work;
	struct completion	scan_complete;
	bool			scan_abort;
	struct ieee80211_scan_request *scan_req;

	struct completion	set_pm_mode_complete;
};

static inline struct wfx_vif *wdev_to_wvif(struct wfx_dev *wdev, int vif_id)
{
	if (vif_id >= ARRAY_SIZE(wdev->vif)) {
		dev_dbg(wdev->dev, "requesting non-existent vif: %d\n", vif_id);
		return NULL;
	}
	vif_id = array_index_nospec(vif_id, ARRAY_SIZE(wdev->vif));
	if (!wdev->vif[vif_id]) {
		dev_dbg(wdev->dev, "requesting non-allocated vif: %d\n",
			vif_id);
		return NULL;
	}
	return (struct wfx_vif *) wdev->vif[vif_id]->drv_priv;
}

static inline struct wfx_vif *wvif_iterate(struct wfx_dev *wdev,
					   struct wfx_vif *cur)
{
	int i;
	int mark = 0;
	struct wfx_vif *tmp;

	if (!cur)
		mark = 1;
	for (i = 0; i < ARRAY_SIZE(wdev->vif); i++) {
		tmp = wdev_to_wvif(wdev, i);
		if (mark && tmp)
			return tmp;
		if (tmp == cur)
			mark = 1;
	}
	return NULL;
}

static inline int wvif_count(struct wfx_dev *wdev)
{
	int i;
	int ret = 0;
	struct wfx_vif *wvif;

	for (i = 0; i < ARRAY_SIZE(wdev->vif); i++) {
		wvif = wdev_to_wvif(wdev, i);
		if (wvif)
			ret++;
	}
	return ret;
}

static inline void memreverse(u8 *src, u8 length)
{
	u8 *lo = src;
	u8 *hi = src + length - 1;
	u8 swap;

	while (lo < hi) {
		swap = *lo;
		*lo++ = *hi;
		*hi-- = swap;
	}
}

static inline int memzcmp(void *src, unsigned int size)
{
	u8 *buf = src;

	if (!size)
		return 0;
	if (*buf)
		return 1;
	return memcmp(buf, buf + 1, size - 1);
}

#endif /* WFX_H */