1 /* 2 * Copyright (c) 2012-2017 The Linux Foundation. All rights reserved. 3 * 4 * Previously licensed under the ISC license by Qualcomm Atheros, Inc. 5 * 6 * 7 * Permission to use, copy, modify, and/or distribute this software for 8 * any purpose with or without fee is hereby granted, provided that the 9 * above copyright notice and this permission notice appear in all 10 * copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL 13 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED 14 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE 15 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 16 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 17 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 18 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 19 * PERFORMANCE OF THIS SOFTWARE. 20 */ 21 22 /** 23 * DOC : wlan_hdd_scan.h 24 * 25 * WLAN Host Device Driver scan related implementation 26 * 27 */ 28 29 #if !defined(WLAN_HDD_SCAN_H) 30 #define WLAN_HDD_SCAN_H 31 32 #include "wlan_hdd_main.h" 33 #include "csr_inside_api.h" 34 #include <wlan_cfg80211_scan.h> 35 36 #define MAX_PENDING_LOG 5 37 38 /* (30 Mins) */ 39 #define MIN_TIME_REQUIRED_FOR_NEXT_BUG_REPORT (30 * 60 * 1000) 40 41 /* HDD Scan inactivity timeout set to 10 seconds 42 * more than the CSR CMD Timeout */ 43 #define HDD_SCAN_INACTIVITY_TIMEOUT \ 44 (CSR_ACTIVE_SCAN_LIST_CMD_TIMEOUT + (10*1000)) 45 46 int hdd_scan_context_init(struct hdd_context *hdd_ctx); 47 void hdd_scan_context_destroy(struct hdd_context *hdd_ctx); 48 49 int wlan_hdd_cfg80211_scan(struct wiphy *wiphy, 50 struct cfg80211_scan_request *request); 51 52 #ifdef FEATURE_WLAN_SCAN_PNO 53 int wlan_hdd_cfg80211_sched_scan_start(struct wiphy *wiphy, 54 struct net_device *dev, 55 struct cfg80211_sched_scan_request 56 *request); 57 58 #if LINUX_VERSION_CODE < KERNEL_VERSION(4, 12, 0) 59 /** 60 * wlan_hdd_cfg80211_sched_scan_stop() - stop cfg80211 scheduled (PNO) scan 61 * @wiphy: Pointer to wiphy 62 * @dev: Pointer network device 63 * 64 * Note, this returns success if the driver is recovering or unloading to 65 * prevent race conditions between PLD initiating an unload and kernel 66 * initiating a scheduled scan stop via cfg80211. Unload is expected to stop 67 * any pending scheduled scans in this case. 68 * 69 * Return: 0 for success, non zero for failure 70 */ 71 int wlan_hdd_cfg80211_sched_scan_stop(struct wiphy *wiphy, 72 struct net_device *dev); 73 #else 74 int wlan_hdd_cfg80211_sched_scan_stop(struct wiphy *wiphy, 75 struct net_device *dev, 76 uint64_t reqid); 77 78 #endif /* KERNEL_VERSION(4, 12, 0) */ 79 80 /** 81 * wlan_hdd_sched_scan_stop() - stop scheduled (PNO) scans 82 * @dev: Pointer network device 83 * 84 * Return: 0 for success, non zero for failure 85 */ 86 int wlan_hdd_sched_scan_stop(struct net_device *dev); 87 #else 88 static inline int wlan_hdd_sched_scan_stop(struct net_device *dev) 89 { 90 return 0; 91 } 92 #endif /* End of FEATURE_WLAN_SCAN_PNO */ 93 94 int wlan_hdd_cfg80211_vendor_scan(struct wiphy *wiphy, 95 struct wireless_dev *wdev, const void *data, 96 int data_len); 97 98 /** 99 * wlan_hdd_vendor_abort_scan() - API to process vendor command for 100 * abort scan 101 * @wiphy: Pointer to wiphy 102 * @wdev: Pointer to net device 103 * @data : Pointer to the data 104 * @data_len : length of the data 105 * 106 * This is called from supplicant to abort scan 107 * 108 * Return: zero for success and non zero for failure. 109 */ 110 int wlan_hdd_vendor_abort_scan( 111 struct wiphy *wiphy, struct wireless_dev *wdev, 112 const void *data, int data_len); 113 114 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 5, 0)) || \ 115 defined(CFG80211_ABORT_SCAN) 116 void wlan_hdd_cfg80211_abort_scan(struct wiphy *wiphy, 117 struct wireless_dev *wdev); 118 #endif 119 120 /** 121 * wlan_hdd_cfg80211_scan_block_cb() - scan block work handler 122 * @work: Pointer to work 123 * 124 * This function is used to do scan block work handler 125 * 126 * Return: none 127 */ 128 void wlan_hdd_cfg80211_scan_block_cb(struct work_struct *work); 129 #endif /* end #if !defined(WLAN_HDD_SCAN_H) */ 130 131