1 /* 2 * Copyright (c) 2017-2018 The Linux Foundation. All rights reserved. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for 5 * any purpose with or without fee is hereby granted, provided that the 6 * above copyright notice and this permission notice appear in all 7 * copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL 10 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED 11 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE 12 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 13 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 14 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 15 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 16 * PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 /** 20 * DOC: This file contains green ap north bound interface definitions 21 */ 22 #include <wlan_green_ap_api.h> 23 #include <../../core/src/wlan_green_ap_main_i.h> 24 #include <wlan_objmgr_global_obj.h> 25 26 QDF_STATUS wlan_green_ap_get_capab( 27 struct wlan_objmgr_pdev *pdev) 28 { 29 struct wlan_lmac_if_green_ap_tx_ops *green_ap_tx_ops; 30 struct wlan_pdev_green_ap_ctx *green_ap_ctx; 31 32 green_ap_ctx = wlan_objmgr_pdev_get_comp_private_obj(pdev, 33 WLAN_UMAC_COMP_GREEN_AP); 34 35 if (!green_ap_ctx) { 36 green_ap_err("green ap context obtained is NULL"); 37 return QDF_STATUS_E_FAILURE; 38 } 39 40 41 green_ap_tx_ops = wlan_psoc_get_green_ap_tx_ops(green_ap_ctx); 42 if (!green_ap_tx_ops) { 43 green_ap_err("green ap tx ops obtained are NULL"); 44 return QDF_STATUS_E_EXISTS; 45 } 46 47 if (green_ap_tx_ops->get_capab) 48 return green_ap_tx_ops->get_capab(pdev); 49 50 return QDF_STATUS_SUCCESS; 51 } 52 53 /** 54 * wlan_green_ap_pdev_obj_create_notification() - called from objmgr when pdev 55 * is created 56 * @pdev: pdev context 57 * @arg: argument 58 * 59 * This function gets called from object manager when pdev is being created and 60 * creates green ap context and attach it to objmgr. 61 * 62 * Return: QDF_STATUS_SUCCESS - in case of success 63 */ 64 static QDF_STATUS wlan_green_ap_pdev_obj_create_notification( 65 struct wlan_objmgr_pdev *pdev, void *arg) 66 { 67 struct wlan_pdev_green_ap_ctx *green_ap_ctx; 68 QDF_STATUS status = QDF_STATUS_SUCCESS; 69 70 if (!pdev) { 71 green_ap_err("pdev context passed is NULL"); 72 return QDF_STATUS_E_INVAL; 73 } 74 75 green_ap_ctx = qdf_mem_malloc(sizeof(*green_ap_ctx)); 76 if (!green_ap_ctx) { 77 green_ap_err("Memory allocation for Green AP context failed!"); 78 return QDF_STATUS_E_NOMEM; 79 } 80 81 green_ap_ctx->ps_state = WLAN_GREEN_AP_PS_IDLE_STATE; 82 green_ap_ctx->ps_event = WLAN_GREEN_AP_PS_WAIT_EVENT; 83 green_ap_ctx->num_nodes = 0; 84 green_ap_ctx->ps_on_time = WLAN_GREEN_AP_PS_ON_TIME; 85 green_ap_ctx->ps_trans_time = WLAN_GREEN_AP_PS_TRANS_TIME; 86 87 green_ap_ctx->pdev = pdev; 88 89 qdf_timer_init(NULL, &green_ap_ctx->ps_timer, 90 wlan_green_ap_timer_fn, 91 pdev, QDF_TIMER_TYPE_WAKE_APPS); 92 93 qdf_spinlock_create(&green_ap_ctx->lock); 94 if (wlan_objmgr_pdev_component_obj_attach(pdev, 95 WLAN_UMAC_COMP_GREEN_AP, 96 green_ap_ctx, QDF_STATUS_SUCCESS) 97 != QDF_STATUS_SUCCESS) { 98 green_ap_err("Failed to attach green ap ctx in pdev ctx"); 99 status = QDF_STATUS_E_FAILURE; 100 goto err_pdev_attach; 101 } 102 103 green_ap_info("Green AP creation successful, green ap ctx: %pK, pdev: %pK", 104 green_ap_ctx, pdev); 105 106 return QDF_STATUS_SUCCESS; 107 108 err_pdev_attach: 109 qdf_spinlock_destroy(&green_ap_ctx->lock); 110 qdf_timer_free(&green_ap_ctx->ps_timer); 111 qdf_mem_free(green_ap_ctx); 112 return status; 113 } 114 115 /** 116 * wlan_green_ap_pdev_obj_destroy_notification() - called from objmgr when 117 * pdev is destroyed 118 * @pdev: pdev context 119 * @arg: argument 120 * 121 * This function gets called from object manager when pdev is being destroyed 122 * and deletes green ap context and detach it from objmgr. 123 * 124 * Return: QDF_STATUS_SUCCESS - in case of success 125 */ 126 static QDF_STATUS wlan_green_ap_pdev_obj_destroy_notification( 127 struct wlan_objmgr_pdev *pdev, void *arg) 128 { 129 struct wlan_pdev_green_ap_ctx *green_ap_ctx; 130 131 if (!pdev) { 132 green_ap_err("pdev context passed is NULL"); 133 return QDF_STATUS_E_INVAL; 134 } 135 136 green_ap_ctx = wlan_objmgr_pdev_get_comp_private_obj( 137 pdev, WLAN_UMAC_COMP_GREEN_AP); 138 if (!green_ap_ctx) { 139 green_ap_err("green ap context is already NULL"); 140 return QDF_STATUS_E_FAILURE; 141 } 142 143 green_ap_info("Deleting green ap pdev obj, green ap ctx: %pK, pdev: %pK", 144 green_ap_ctx, pdev); 145 146 if (wlan_objmgr_pdev_component_obj_detach(pdev, 147 WLAN_UMAC_COMP_GREEN_AP, green_ap_ctx) != 148 QDF_STATUS_SUCCESS) { 149 green_ap_err("Failed to detach green ap ctx in psoc ctx"); 150 return QDF_STATUS_E_FAILURE; 151 } 152 153 qdf_timer_free(&green_ap_ctx->ps_timer); 154 qdf_spinlock_destroy(&green_ap_ctx->lock); 155 156 qdf_mem_free(green_ap_ctx); 157 green_ap_info("green ap deletion successful, pdev: %pK", pdev); 158 159 return QDF_STATUS_SUCCESS; 160 } 161 162 QDF_STATUS wlan_green_ap_init(void) 163 { 164 QDF_STATUS status = QDF_STATUS_SUCCESS; 165 166 status = wlan_objmgr_register_pdev_create_handler( 167 WLAN_UMAC_COMP_GREEN_AP, 168 wlan_green_ap_pdev_obj_create_notification, 169 NULL); 170 if (status != QDF_STATUS_SUCCESS) { 171 green_ap_err("Failed to register green ap obj create handler"); 172 goto err_pdev_create; 173 } 174 175 status = wlan_objmgr_register_pdev_destroy_handler( 176 WLAN_UMAC_COMP_GREEN_AP, 177 wlan_green_ap_pdev_obj_destroy_notification, 178 NULL); 179 if (status != QDF_STATUS_SUCCESS) { 180 green_ap_err("Failed to register green ap obj destroy handler"); 181 goto err_pdev_delete; 182 } 183 184 green_ap_info("Successfully registered create and destroy handlers with objmgr"); 185 return QDF_STATUS_SUCCESS; 186 187 err_pdev_delete: 188 wlan_objmgr_unregister_pdev_create_handler( 189 WLAN_UMAC_COMP_GREEN_AP, 190 wlan_green_ap_pdev_obj_create_notification, 191 NULL); 192 err_pdev_create: 193 return status; 194 } 195 196 QDF_STATUS wlan_green_ap_deinit(void) 197 { 198 if (wlan_objmgr_unregister_pdev_create_handler( 199 WLAN_UMAC_COMP_GREEN_AP, 200 wlan_green_ap_pdev_obj_create_notification, 201 NULL) 202 != QDF_STATUS_SUCCESS) { 203 return QDF_STATUS_E_FAILURE; 204 } 205 206 if (wlan_objmgr_unregister_pdev_destroy_handler( 207 WLAN_UMAC_COMP_GREEN_AP, 208 wlan_green_ap_pdev_obj_destroy_notification, 209 NULL) 210 != QDF_STATUS_SUCCESS) { 211 return QDF_STATUS_E_FAILURE; 212 } 213 214 green_ap_info("Successfully unregistered create and destroy handlers with objmgr"); 215 return QDF_STATUS_SUCCESS; 216 } 217 218 QDF_STATUS wlan_green_ap_start(struct wlan_objmgr_pdev *pdev) 219 { 220 struct wlan_pdev_green_ap_ctx *green_ap_ctx; 221 222 if (!pdev) { 223 green_ap_err("pdev context passed is NULL"); 224 return QDF_STATUS_E_INVAL; 225 } 226 227 green_ap_ctx = wlan_objmgr_pdev_get_comp_private_obj( 228 pdev, WLAN_UMAC_COMP_GREEN_AP); 229 if (!green_ap_ctx) { 230 green_ap_err("green ap context obtained is NULL"); 231 return QDF_STATUS_E_FAILURE; 232 } 233 234 green_ap_debug("Green AP start received"); 235 236 /* Make sure the start function does not get called 2 times */ 237 qdf_spin_lock_bh(&green_ap_ctx->lock); 238 239 if (wlan_is_egap_enabled(green_ap_ctx)) { 240 qdf_spin_unlock_bh(&green_ap_ctx->lock); 241 green_ap_debug("enhanced green ap support is enabled"); 242 return QDF_STATUS_SUCCESS; 243 } 244 245 if (green_ap_ctx->ps_state == WLAN_GREEN_AP_PS_IDLE_STATE) { 246 if (green_ap_ctx->ps_enable) { 247 qdf_spin_unlock_bh(&green_ap_ctx->lock); 248 return wlan_green_ap_state_mc(green_ap_ctx, 249 WLAN_GREEN_AP_PS_START_EVENT); 250 } 251 } 252 253 qdf_spin_unlock_bh(&green_ap_ctx->lock); 254 return QDF_STATUS_E_ALREADY; 255 } 256 257 QDF_STATUS wlan_green_ap_stop(struct wlan_objmgr_pdev *pdev) 258 { 259 struct wlan_pdev_green_ap_ctx *green_ap_ctx; 260 261 if (!pdev) { 262 green_ap_err("pdev context passed is NULL"); 263 return QDF_STATUS_E_INVAL; 264 } 265 266 green_ap_ctx = wlan_objmgr_pdev_get_comp_private_obj( 267 pdev, WLAN_UMAC_COMP_GREEN_AP); 268 if (!green_ap_ctx) { 269 green_ap_err("green ap context obtained is NULL"); 270 return QDF_STATUS_E_FAILURE; 271 } 272 273 green_ap_debug("Green AP stop received"); 274 275 qdf_spin_lock_bh(&green_ap_ctx->lock); 276 if (wlan_is_egap_enabled(green_ap_ctx)) { 277 qdf_spin_unlock_bh(&green_ap_ctx->lock); 278 green_ap_debug("enhanced green ap support is enabled"); 279 return QDF_STATUS_SUCCESS; 280 } 281 282 /* Delete the timer just to be sure */ 283 qdf_timer_stop(&green_ap_ctx->ps_timer); 284 285 /* Disable the power save */ 286 green_ap_ctx->ps_enable = WLAN_GREEN_AP_PS_DISABLE; 287 288 qdf_spin_unlock_bh(&green_ap_ctx->lock); 289 return wlan_green_ap_state_mc(green_ap_ctx, 290 WLAN_GREEN_AP_PS_STOP_EVENT); 291 } 292 293 QDF_STATUS wlan_green_ap_add_sta(struct wlan_objmgr_pdev *pdev) 294 { 295 struct wlan_pdev_green_ap_ctx *green_ap_ctx; 296 297 if (!pdev) { 298 green_ap_err("pdev context passed is NULL"); 299 return QDF_STATUS_E_INVAL; 300 } 301 302 green_ap_ctx = wlan_objmgr_pdev_get_comp_private_obj( 303 pdev, WLAN_UMAC_COMP_GREEN_AP); 304 if (!green_ap_ctx) { 305 green_ap_err("green ap context obtained is NULL"); 306 return QDF_STATUS_E_FAILURE; 307 } 308 309 green_ap_debug("Green AP add sta received"); 310 311 qdf_spin_lock_bh(&green_ap_ctx->lock); 312 if (wlan_is_egap_enabled(green_ap_ctx)) { 313 qdf_spin_unlock_bh(&green_ap_ctx->lock); 314 green_ap_debug("enhanced green ap support is enabled"); 315 return QDF_STATUS_SUCCESS; 316 } 317 qdf_spin_unlock_bh(&green_ap_ctx->lock); 318 319 return wlan_green_ap_state_mc(green_ap_ctx, 320 WLAN_GREEN_AP_ADD_STA_EVENT); 321 } 322 323 QDF_STATUS wlan_green_ap_del_sta(struct wlan_objmgr_pdev *pdev) 324 { 325 struct wlan_pdev_green_ap_ctx *green_ap_ctx; 326 327 if (!pdev) { 328 green_ap_err("pdev context passed is NULL"); 329 return QDF_STATUS_E_INVAL; 330 } 331 332 green_ap_ctx = wlan_objmgr_pdev_get_comp_private_obj( 333 pdev, WLAN_UMAC_COMP_GREEN_AP); 334 if (!green_ap_ctx) { 335 green_ap_err("green ap context obtained is NULL"); 336 return QDF_STATUS_E_FAILURE; 337 } 338 339 green_ap_debug("Green AP del sta received"); 340 341 qdf_spin_lock_bh(&green_ap_ctx->lock); 342 if (wlan_is_egap_enabled(green_ap_ctx)) { 343 qdf_spin_unlock_bh(&green_ap_ctx->lock); 344 green_ap_info("enhanced green ap support is enabled"); 345 return QDF_STATUS_SUCCESS; 346 } 347 qdf_spin_unlock_bh(&green_ap_ctx->lock); 348 349 return wlan_green_ap_state_mc(green_ap_ctx, 350 WLAN_GREEN_AP_DEL_STA_EVENT); 351 } 352 353 bool wlan_green_ap_is_ps_enabled(struct wlan_objmgr_pdev *pdev) 354 { 355 struct wlan_pdev_green_ap_ctx *green_ap_ctx; 356 357 if (!pdev) { 358 green_ap_err("pdev context passed is NULL"); 359 return QDF_STATUS_E_INVAL; 360 } 361 362 green_ap_ctx = wlan_objmgr_pdev_get_comp_private_obj( 363 pdev, WLAN_UMAC_COMP_GREEN_AP); 364 if (!green_ap_ctx) { 365 green_ap_err("green ap context obtained is NULL"); 366 return QDF_STATUS_E_FAILURE; 367 } 368 369 if ((green_ap_ctx->ps_state == WLAN_GREEN_AP_PS_ON_STATE) && 370 (green_ap_ctx->ps_enable)) 371 return true; 372 373 return false; 374 375 } 376 377 void wlan_green_ap_suspend_handle(struct wlan_objmgr_pdev *pdev) 378 { 379 struct wlan_pdev_green_ap_ctx *green_ap_ctx; 380 381 if (!pdev) { 382 green_ap_err("pdev context passed is NULL"); 383 return; 384 } 385 386 green_ap_ctx = wlan_objmgr_pdev_get_comp_private_obj( 387 pdev, WLAN_UMAC_COMP_GREEN_AP); 388 389 if (!green_ap_ctx) { 390 green_ap_err("green ap context obtained is NULL"); 391 return; 392 } 393 394 wlan_green_ap_stop(pdev); 395 396 green_ap_ctx->ps_enable = WLAN_GREEN_AP_PS_SUSPEND; 397 } 398