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
28struct wfx_hwbus_ops;
29
30struct 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
64struct 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
96static 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
101static 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
113static 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
131static 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
145static 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
158static 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