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 wfx_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 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 63 struct 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 94 static 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 99 static 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 } 110 111 static 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 } 128 129 static 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 } 142 143 static 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 } 155 156 static 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