1 /* 2 * Copyright (c) 2017-2018 The Linux Foundation. All rights reserved. 3 * 4 * 5 * Permission to use, copy, modify, and/or distribute this software for 6 * any purpose with or without fee is hereby granted, provided that the 7 * above copyright notice and this permission notice appear in all 8 * copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL 11 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED 12 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE 13 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 14 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 15 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 16 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 17 * PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 /** 21 * DOC: target_if_dfs.c 22 * This file contains dfs target interface 23 */ 24 25 #include <target_if.h> 26 #include <qdf_types.h> 27 #include <qdf_status.h> 28 #include <target_if_dfs.h> 29 #include <wlan_module_ids.h> 30 #include <wmi_unified_api.h> 31 #include <wlan_lmac_if_def.h> 32 #include <wmi_unified_priv.h> 33 #include <wlan_scan_tgt_api.h> 34 #include <wmi_unified_param.h> 35 #include <wmi_unified_dfs_api.h> 36 #include "wlan_dfs_tgt_api.h" 37 #include "target_type.h" 38 #include <init_deinit_lmac.h> 39 #include <wlan_reg_ucfg_api.h> 40 #include <target_if_dfs_full_offload.h> 41 #include <target_if_dfs_partial_offload.h> 42 43 /** 44 * target_if_dfs_register_host_status_check_event() - Register host dfs 45 * confirmation event. 46 * @psoc: pointer to psoc. 47 * 48 * Return: QDF_STATUS. 49 */ 50 #if defined(WLAN_DFS_PARTIAL_OFFLOAD) && defined(HOST_DFS_SPOOF_TEST) 51 static QDF_STATUS target_if_dfs_register_host_status_check_event( 52 struct wlan_objmgr_psoc *psoc) 53 54 { 55 wmi_unified_t wmi_handle; 56 QDF_STATUS retval; 57 58 wmi_handle = get_wmi_unified_hdl_from_psoc(psoc); 59 if (!wmi_handle) { 60 target_if_err("null wmi_handle"); 61 return QDF_STATUS_E_FAILURE; 62 } 63 64 retval = wmi_unified_register_event(wmi_handle, 65 wmi_host_dfs_status_check_event_id, 66 target_if_dfs_status_check_event_handler); 67 if (QDF_IS_STATUS_ERROR(retval)) 68 target_if_err("wmi_dfs_radar_detection_event_id ret=%d", 69 retval); 70 71 return retval; 72 } 73 #else 74 static QDF_STATUS target_if_dfs_register_host_status_check_event( 75 struct wlan_objmgr_psoc *psoc) 76 { 77 return QDF_STATUS_SUCCESS; 78 } 79 #endif 80 81 /** 82 * target_if_is_dfs_3() - Is dfs3 support or not 83 * @target_type: target type being used. 84 * 85 * Return: true if dfs3 is supported, false otherwise. 86 */ 87 static bool target_if_is_dfs_3(uint32_t target_type) 88 { 89 bool is_dfs_3; 90 91 switch (target_type) { 92 case TARGET_TYPE_AR6320: 93 is_dfs_3 = false; 94 break; 95 case TARGET_TYPE_ADRASTEA: 96 is_dfs_3 = true; 97 break; 98 default: 99 is_dfs_3 = true; 100 } 101 102 return is_dfs_3; 103 } 104 105 #ifdef QCA_MCL_DFS_SUPPORT 106 /** 107 * target_if_radar_event_handler() - handle radar event when 108 * phyerr filter offload is enabled. 109 * @scn: Handle to HIF context 110 * @data: radar event buffer 111 * @datalen: radar event buffer length 112 * 113 * Return: 0 on success; error code otherwise 114 */ 115 static int target_if_radar_event_handler( 116 ol_scn_t scn, uint8_t *data, uint32_t datalen) 117 { 118 struct radar_event_info wlan_radar_event; 119 struct wlan_objmgr_psoc *psoc; 120 struct wlan_objmgr_pdev *pdev; 121 struct wlan_lmac_if_dfs_rx_ops *dfs_rx_ops; 122 struct wmi_unified *wmi_handle; 123 124 if (!scn || !data) { 125 target_if_err("scn: %pK, data: %pK", scn, data); 126 return -EINVAL; 127 } 128 psoc = target_if_get_psoc_from_scn_hdl(scn); 129 if (!psoc) { 130 target_if_err("null psoc"); 131 return -EINVAL; 132 } 133 dfs_rx_ops = target_if_dfs_get_rx_ops(psoc); 134 135 if (!dfs_rx_ops || !dfs_rx_ops->dfs_process_phyerr_filter_offload) { 136 target_if_err("Invalid dfs_rx_ops: %pK", dfs_rx_ops); 137 return -EINVAL; 138 } 139 140 wmi_handle = get_wmi_unified_hdl_from_psoc(psoc); 141 if (!wmi_handle) { 142 target_if_err("Invalid WMI context"); 143 return -EINVAL; 144 } 145 146 if (QDF_IS_STATUS_ERROR(wmi_extract_wlan_radar_event_info( 147 wmi_handle, data, 148 &wlan_radar_event, datalen))) { 149 target_if_err("failed to extract wlan radar event"); 150 return -EFAULT; 151 } 152 pdev = wlan_objmgr_get_pdev_by_id(psoc, wlan_radar_event.pdev_id, 153 WLAN_DFS_ID); 154 if (!pdev) { 155 target_if_err("null pdev"); 156 return -EINVAL; 157 } 158 dfs_rx_ops->dfs_process_phyerr_filter_offload(pdev, 159 &wlan_radar_event); 160 wlan_objmgr_pdev_release_ref(pdev, WLAN_DFS_ID); 161 162 return 0; 163 } 164 165 /** 166 * target_if_reg_phyerr_events() - register dfs phyerr radar event. 167 * @psoc: pointer to psoc. 168 * @pdev: pointer to pdev. 169 * 170 * Return: QDF_STATUS. 171 */ 172 static QDF_STATUS target_if_reg_phyerr_events_dfs2( 173 struct wlan_objmgr_psoc *psoc) 174 { 175 int ret; 176 177 ret = wmi_unified_register_event(get_wmi_unified_hdl_from_psoc(psoc), 178 wmi_dfs_radar_event_id, 179 target_if_radar_event_handler); 180 if (ret) { 181 target_if_err("failed to register wmi_dfs_radar_event_id"); 182 return QDF_STATUS_E_FAILURE; 183 } 184 185 return QDF_STATUS_SUCCESS; 186 } 187 #else 188 static QDF_STATUS target_if_reg_phyerr_events_dfs2( 189 struct wlan_objmgr_psoc *psoc) 190 { 191 return QDF_STATUS_SUCCESS; 192 } 193 #endif 194 195 static bool target_if_dfs_offload(struct wlan_objmgr_psoc *psoc) 196 { 197 return wmi_service_enabled(get_wmi_unified_hdl_from_psoc(psoc), 198 wmi_service_dfs_phyerr_offload); 199 } 200 201 static QDF_STATUS target_if_dfs_register_event_handler( 202 struct wlan_objmgr_psoc *psoc) 203 { 204 struct target_psoc_info *tgt_psoc_info; 205 206 if (!psoc) { 207 target_if_err("null psoc"); 208 return QDF_STATUS_E_FAILURE; 209 } 210 211 if (!target_if_dfs_offload(psoc)) { 212 tgt_psoc_info = wlan_psoc_get_tgt_if_handle(psoc); 213 if (!tgt_psoc_info) { 214 target_if_err("null tgt_psoc_info"); 215 return QDF_STATUS_E_FAILURE; 216 } 217 218 target_if_dfs_register_host_status_check_event(psoc); 219 220 if (target_if_is_dfs_3( 221 target_psoc_get_target_type(tgt_psoc_info))) 222 return target_if_dfs_reg_phyerr_events(psoc); 223 else 224 return target_if_reg_phyerr_events_dfs2(psoc); 225 } else { 226 return target_if_dfs_reg_offload_events(psoc); 227 } 228 } 229 230 static QDF_STATUS target_if_dfs_is_pdev_5ghz(struct wlan_objmgr_pdev *pdev, 231 bool *is_5ghz) 232 { 233 struct wlan_objmgr_psoc *psoc; 234 uint8_t pdev_id; 235 struct wlan_psoc_host_hal_reg_capabilities_ext *reg_cap_ptr; 236 237 psoc = wlan_pdev_get_psoc(pdev); 238 if (!psoc) { 239 target_if_err("dfs: null psoc"); 240 return QDF_STATUS_E_FAILURE; 241 } 242 243 pdev_id = wlan_objmgr_pdev_get_pdev_id(pdev); 244 245 reg_cap_ptr = ucfg_reg_get_hal_reg_cap(psoc); 246 if (!reg_cap_ptr) { 247 target_if_err("dfs: reg cap null"); 248 return QDF_STATUS_E_FAILURE; 249 } 250 251 if (reg_cap_ptr[pdev_id].wireless_modes & 252 WMI_HOST_REGDMN_MODE_11A) 253 *is_5ghz = true; 254 else 255 *is_5ghz = false; 256 257 return QDF_STATUS_SUCCESS; 258 } 259 260 #ifdef QCA_MCL_DFS_SUPPORT 261 /** 262 * target_if_dfs_set_phyerr_filter_offload() - config phyerr filter offload. 263 * @pdev: Pointer to DFS pdev object. 264 * @dfs_phyerr_filter_offload: Phyerr filter offload value. 265 * 266 * Return: QDF_STATUS 267 */ 268 static QDF_STATUS target_if_dfs_set_phyerr_filter_offload( 269 struct wlan_objmgr_pdev *pdev, 270 bool dfs_phyerr_filter_offload) 271 { 272 QDF_STATUS status; 273 void *wmi_handle; 274 275 if (!pdev) { 276 target_if_err("null pdev"); 277 return QDF_STATUS_E_FAILURE; 278 } 279 280 wmi_handle = GET_WMI_HDL_FROM_PDEV(pdev); 281 if (!wmi_handle) { 282 target_if_err("null wmi_handle"); 283 return QDF_STATUS_E_FAILURE; 284 } 285 286 status = wmi_unified_dfs_phyerr_filter_offload_en_cmd(wmi_handle, 287 dfs_phyerr_filter_offload); 288 if (QDF_IS_STATUS_ERROR(status)) 289 target_if_err("phyerr filter offload %d set fail: %d", 290 dfs_phyerr_filter_offload, status); 291 292 return status; 293 } 294 #else 295 static QDF_STATUS target_if_dfs_set_phyerr_filter_offload( 296 struct wlan_objmgr_pdev *pdev, 297 bool dfs_phyerr_filter_offload) 298 { 299 return QDF_STATUS_SUCCESS; 300 } 301 #endif 302 303 static QDF_STATUS target_send_dfs_offload_enable_cmd( 304 struct wlan_objmgr_pdev *pdev, bool enable) 305 { 306 QDF_STATUS status = QDF_STATUS_SUCCESS; 307 uint8_t pdev_id; 308 void *wmi_hdl; 309 310 if (!pdev) { 311 target_if_err("null pdev"); 312 return QDF_STATUS_E_FAILURE; 313 } 314 315 wmi_hdl = GET_WMI_HDL_FROM_PDEV(pdev); 316 if (!wmi_hdl) { 317 target_if_err("null wmi_hdl"); 318 return QDF_STATUS_E_FAILURE; 319 } 320 321 pdev_id = wlan_objmgr_pdev_get_pdev_id(pdev); 322 323 if (enable) 324 status = wmi_unified_dfs_phyerr_offload_en_cmd(wmi_hdl, 325 pdev_id); 326 else 327 status = wmi_unified_dfs_phyerr_offload_dis_cmd(wmi_hdl, 328 pdev_id); 329 330 if (QDF_IS_STATUS_ERROR(status)) 331 target_if_err("dfs: dfs offload cmd failed, enable:%d, pdev:%d", 332 enable, pdev_id); 333 else 334 target_if_debug("dfs: sent dfs offload cmd, enable:%d, pdev:%d", 335 enable, pdev_id); 336 337 return status; 338 } 339 340 QDF_STATUS target_if_register_dfs_tx_ops(struct wlan_lmac_if_tx_ops *tx_ops) 341 { 342 struct wlan_lmac_if_dfs_tx_ops *dfs_tx_ops; 343 344 if (!tx_ops) { 345 target_if_err("invalid tx_ops"); 346 return QDF_STATUS_E_FAILURE; 347 } 348 349 dfs_tx_ops = &tx_ops->dfs_tx_ops; 350 dfs_tx_ops->dfs_reg_ev_handler = &target_if_dfs_register_event_handler; 351 352 dfs_tx_ops->dfs_process_emulate_bang_radar_cmd = 353 &target_process_bang_radar_cmd; 354 dfs_tx_ops->dfs_is_pdev_5ghz = &target_if_dfs_is_pdev_5ghz; 355 dfs_tx_ops->dfs_send_offload_enable_cmd = 356 &target_send_dfs_offload_enable_cmd; 357 358 dfs_tx_ops->dfs_set_phyerr_filter_offload = 359 &target_if_dfs_set_phyerr_filter_offload; 360 361 dfs_tx_ops->dfs_get_caps = &target_if_dfs_get_caps; 362 dfs_tx_ops->dfs_send_avg_radar_params_to_fw = 363 &target_if_dfs_send_avg_params_to_fw; 364 dfs_tx_ops->dfs_is_tgt_offload = &target_if_dfs_offload; 365 366 return QDF_STATUS_SUCCESS; 367 } 368