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 }; 61 62 struct wfx_vif { 63 struct wfx_dev *wdev; 64 struct ieee80211_vif *vif; 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 wfx_vif *wdev_to_wvif(struct wfx_dev *wdev, int vif_id) 95 { 96 if (vif_id >= ARRAY_SIZE(wdev->vif)) { 97 dev_dbg(wdev->dev, "requesting non-existent vif: %d\n", vif_id); 98 return NULL; 99 } 100 vif_id = array_index_nospec(vif_id, ARRAY_SIZE(wdev->vif)); 101 if (!wdev->vif[vif_id]) 102 return NULL; 103 return (struct wfx_vif *)wdev->vif[vif_id]->drv_priv; 104 } 105 106 static inline struct wfx_vif *wvif_iterate(struct wfx_dev *wdev, struct wfx_vif *cur) 107 { 108 int i; 109 int mark = 0; 110 struct wfx_vif *tmp; 111 112 if (!cur) 113 mark = 1; 114 for (i = 0; i < ARRAY_SIZE(wdev->vif); i++) { 115 tmp = wdev_to_wvif(wdev, i); 116 if (mark && tmp) 117 return tmp; 118 if (tmp == cur) 119 mark = 1; 120 } 121 return NULL; 122 } 123 124 static inline int wvif_count(struct wfx_dev *wdev) 125 { 126 int i; 127 int ret = 0; 128 struct wfx_vif *wvif; 129 130 for (i = 0; i < ARRAY_SIZE(wdev->vif); i++) { 131 wvif = wdev_to_wvif(wdev, i); 132 if (wvif) 133 ret++; 134 } 135 return ret; 136 } 137 138 static inline void memreverse(u8 *src, u8 length) 139 { 140 u8 *lo = src; 141 u8 *hi = src + length - 1; 142 u8 swap; 143 144 while (lo < hi) { 145 swap = *lo; 146 *lo++ = *hi; 147 *hi-- = swap; 148 } 149 } 150 151 static inline int memzcmp(void *src, unsigned int size) 152 { 153 u8 *buf = src; 154 155 if (!size) 156 return 0; 157 if (*buf) 158 return 1; 159 return memcmp(buf, buf + 1, size - 1); 160 } 161 162 #endif 163