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               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
63struct 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
94static 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
99static 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
111static 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
129static 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
143static 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
156static 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