1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef __WIFI_HAL_GSCAN_COMMAND_H__ 18 #define __WIFI_HAL_GSCAN_COMMAND_H__ 19 20 #include "common.h" 21 #include "cpp_bindings.h" 22 #ifdef __GNUC__ 23 #define PRINTF_FORMAT(a,b) __attribute__ ((format (printf, (a), (b)))) 24 #define STRUCT_PACKED __attribute__ ((packed)) 25 #else 26 #define PRINTF_FORMAT(a,b) 27 #define STRUCT_PACKED 28 #endif 29 #include "vendor_definitions.h" 30 #include "gscan.h" 31 32 #ifdef __cplusplus 33 extern "C" 34 { 35 #endif /* __cplusplus */ 36 37 typedef struct{ 38 u32 status; 39 u32 num_channels; 40 wifi_channel channels[]; 41 } GScanGetValidChannelsRspParams; 42 43 typedef struct{ 44 wifi_gscan_capabilities capabilities; 45 } GScanGetCapabilitiesRspParams; 46 47 typedef struct{ 48 u8 more_data; 49 u32 num_cached_results; 50 u32 cachedResultsStartingIndex; /* Used in filling cached scan results */ 51 int lastProcessedScanId; /* Last scan id in gscan cached results block */ 52 u32 wifiScanResultsStartingIndex; /* For the lastProcessedScanId */ 53 u32 max; /* max num of cached results specified by caller */ 54 wifi_cached_scan_results *cached_results; 55 } GScanGetCachedResultsRspParams; 56 57 typedef struct { 58 int max_channels; 59 wifi_channel *channels; 60 int *number_channels; 61 } GScan_get_valid_channels_cb_data; 62 63 typedef enum{ 64 eGScanRspParamsInvalid = 0, 65 eGScanGetValidChannelsRspParams, 66 eGScanGetCapabilitiesRspParams, 67 eGScanGetCachedResultsRspParams, 68 } eGScanRspRarams; 69 70 /* Response and Event Callbacks */ 71 typedef struct { 72 /* Various Events Callback */ 73 void (*on_hotlist_ap_found)(wifi_request_id id, 74 unsigned num_results, wifi_scan_result *results); 75 void (*on_hotlist_ap_lost)(wifi_request_id id, 76 unsigned num_results, wifi_scan_result *results); 77 void (*on_significant_change)(wifi_request_id id, 78 unsigned num_results, 79 wifi_significant_change_result **results); 80 /* Reported when each probe response is received, if report_events 81 * enabled in wifi_scan_cmd_params 82 */ 83 void (*on_full_scan_result) (wifi_request_id id, wifi_scan_result *result, 84 unsigned buckets_scanned); 85 /* Optional event - indicates progress of scanning statemachine */ 86 void (*on_scan_event) (wifi_request_id id, wifi_scan_event event); 87 void (*on_hotlist_ssid_found)(wifi_request_id id, 88 unsigned num_results, wifi_scan_result *results); 89 void (*on_hotlist_ssid_lost)(wifi_request_id id, 90 unsigned num_results, wifi_scan_result *results); 91 void (*on_pno_network_found)(wifi_request_id id, 92 unsigned num_results, wifi_scan_result *results); 93 void (*on_passpoint_network_found)(wifi_request_id id, 94 int net_id, 95 wifi_scan_result *result, 96 int anqp_len, 97 byte *anqp 98 ); 99 } GScanCallbackHandler; 100 101 class GScanCommand: public WifiVendorCommand 102 { 103 private: 104 GScanGetCapabilitiesRspParams *mGetCapabilitiesRspParams; 105 GScanGetCachedResultsRspParams *mGetCachedResultsRspParams; 106 GScanCallbackHandler mHandler; 107 int mRequestId; 108 int *mChannels; 109 int mMaxChannels; 110 int *mNumChannelsPtr; 111 112 public: 113 GScanCommand(wifi_handle handle, int id, u32 vendor_id, u32 subcmd); 114 virtual ~GScanCommand(); 115 116 /* This function implements creation of GSCAN specific Request 117 * based on the request type. 118 */ 119 virtual int create(); 120 virtual int requestResponse(); 121 virtual int handleResponse(WifiEvent &reply); 122 virtual void setMaxChannels(int max_channels); 123 virtual void setChannels(int *channels); 124 virtual void setNumChannelsPtr(int *num_channels); 125 virtual int allocRspParams(eGScanRspRarams cmd); 126 virtual void freeRspParams(eGScanRspRarams cmd); 127 virtual wifi_error getGetCapabilitiesRspParams( 128 wifi_gscan_capabilities *capabilities); 129 virtual wifi_error copyCachedScanResults(int *numResults, 130 wifi_cached_scan_results *cached_results); 131 virtual int gscan_get_cached_results(wifi_cached_scan_results *results, 132 struct nlattr **tb_vendor); 133 wifi_error validateGscanConfig(wifi_scan_cmd_params params); 134 wifi_error validateSignificantChangeParams( 135 wifi_significant_change_params params); 136 virtual int allocCachedResultsTemp(int max, 137 wifi_cached_scan_results *results); 138 virtual int gscan_parse_capabilities(struct nlattr **tbVendor); 139 }; 140 141 #define GSCAN_BASE_PERIOD_MIN 1 142 #define GSCAN_MAX_AP_PER_SCAN_MIN 1 143 #define GSCAN_REPORT_THRESHOLD_MIN 1 144 #define GSCAN_NUM_BUCKETS_MIN 1 145 #define GSCAN_BUCKET_INDEX_MIN 0 146 #define GSCAN_REPORT_EVENT0 0 147 #define GSCAN_REPORT_EVENT1 1 148 #define GSCAN_REPORT_EVENT2 2 149 #define GSCAN_MIN_CHANNELS 0 150 #define GSCAN_ACTIVE_SCAN 0 151 #define GSCAN_PASSIVE_SCAN 1 152 153 #define BSSID_HOTLIST_NUM_AP_MIN 1 154 155 #define RSSI_SAMPLE_SIZE_MIN 1 156 #define LOSTAP_SAMPLE_SIZE_MIN 1 157 #define MIN_BREACHING_MIN 1 158 #define SIGNIFICANT_CHANGE_NUM_AP_MIN 1 159 160 #ifdef __cplusplus 161 } 162 #endif /* __cplusplus */ 163 #endif 164
