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