1/****************************************************************************** 2 * 3 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved. 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of version 2 of the GNU General Public License as 7 * published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12 * more details. 13 * 14 * You should have received a copy of the GNU General Public License along with 15 * this program; if not, write to the Free Software Foundation, Inc., 16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA 17 * 18 * 19 ******************************************************************************/ 20#define _HCI_INTF_C_ 21 22#include <osdep_service.h> 23#include <drv_types.h> 24#include <recv_osdep.h> 25#include <xmit_osdep.h> 26#include <hal_intf.h> 27#include <linux/usb.h> 28#include <linux/vmalloc.h> 29#include <osdep_intf.h> 30 31#include <usb_ops_linux.h> 32#include <usb_hal.h> 33#include <rtw_ioctl.h> 34 35int ui_pid[3] = {0, 0, 0}; 36 37#define USB_VENDER_ID_REALTEK 0x0bda 38 39/* DID_USB_v916_20130116 */ 40static struct usb_device_id rtw_usb_id_tbl[] = { 41 /*=== Realtek demoboard ===*/ 42 {USB_DEVICE(USB_VENDER_ID_REALTEK, 0x8179)}, /* 8188EUS */ 43 {USB_DEVICE(USB_VENDER_ID_REALTEK, 0x0179)}, /* 8188ETV */ 44 /*=== Customer ID ===*/ 45 /****** 8188EUS ********/ 46 {USB_DEVICE(0x056e, 0x4008)}, /* Elecom WDC-150SU2M */ 47 {USB_DEVICE(0x07b8, 0x8179)}, /* Abocom - Abocom */ 48 {USB_DEVICE(0x2001, 0x330F)}, /* DLink DWA-125 REV D1 */ 49 {USB_DEVICE(0x2001, 0x3310)}, /* Dlink DWA-123 REV D1 */ 50 {USB_DEVICE(0x2001, 0x3311)}, /* DLink GO-USB-N150 REV B1 */ 51 {USB_DEVICE(0x0df6, 0x0076)}, /* Sitecom N150 v2 */ 52 {} /* Terminating entry */ 53}; 54 55MODULE_DEVICE_TABLE(usb, rtw_usb_id_tbl); 56 57static struct dvobj_priv *usb_dvobj_init(struct usb_interface *usb_intf) 58{ 59 int i; 60 int status = _FAIL; 61 struct dvobj_priv *pdvobjpriv; 62 struct usb_host_config *phost_conf; 63 struct usb_config_descriptor *pconf_desc; 64 struct usb_host_interface *phost_iface; 65 struct usb_interface_descriptor *piface_desc; 66 struct usb_host_endpoint *phost_endp; 67 struct usb_endpoint_descriptor *pendp_desc; 68 struct usb_device *pusbd; 69 70 71 pdvobjpriv = kzalloc(sizeof(*pdvobjpriv), GFP_KERNEL); 72 if (pdvobjpriv == NULL) 73 goto exit; 74 75 pdvobjpriv->pusbintf = usb_intf; 76 pusbd = interface_to_usbdev(usb_intf); 77 pdvobjpriv->pusbdev = pusbd; 78 usb_set_intfdata(usb_intf, pdvobjpriv); 79 80 pdvobjpriv->RtNumInPipes = 0; 81 pdvobjpriv->RtNumOutPipes = 0; 82 83 phost_conf = pusbd->actconfig; 84 pconf_desc = &phost_conf->desc; 85 86 phost_iface = &usb_intf->altsetting[0]; 87 piface_desc = &phost_iface->desc; 88 89 pdvobjpriv->NumInterfaces = pconf_desc->bNumInterfaces; 90 pdvobjpriv->InterfaceNumber = piface_desc->bInterfaceNumber; 91 pdvobjpriv->nr_endpoint = piface_desc->bNumEndpoints; 92 93 for (i = 0; i < pdvobjpriv->nr_endpoint; i++) { 94 int ep_num; 95 phost_endp = phost_iface->endpoint + i; 96 97 if (phost_endp) { 98 pendp_desc = &phost_endp->desc; 99 ep_num = usb_endpoint_num(pendp_desc); 100 101 if (usb_endpoint_is_bulk_in(pendp_desc)) { 102 pdvobjpriv->RtInPipe[pdvobjpriv->RtNumInPipes] = ep_num; 103 pdvobjpriv->RtNumInPipes++; 104 } else if (usb_endpoint_is_int_in(pendp_desc)) { 105 pdvobjpriv->RtInPipe[pdvobjpriv->RtNumInPipes] = ep_num; 106 pdvobjpriv->RtNumInPipes++; 107 } else if (usb_endpoint_is_bulk_out(pendp_desc)) { 108 pdvobjpriv->RtOutPipe[pdvobjpriv->RtNumOutPipes] = ep_num; 109 pdvobjpriv->RtNumOutPipes++; 110 } 111 pdvobjpriv->ep_num[i] = ep_num; 112 } 113 } 114 115 if (pusbd->speed == USB_SPEED_HIGH) 116 pdvobjpriv->ishighspeed = true; 117 else 118 pdvobjpriv->ishighspeed = false; 119 120 mutex_init(&pdvobjpriv->usb_vendor_req_mutex); 121 pdvobjpriv->usb_vendor_req_buf = kzalloc(MAX_USB_IO_CTL_SIZE, GFP_KERNEL); 122 123 if (!pdvobjpriv->usb_vendor_req_buf) 124 goto free_dvobj; 125 126 usb_get_dev(pusbd); 127 128 status = _SUCCESS; 129 130free_dvobj: 131 if (status != _SUCCESS && pdvobjpriv) { 132 usb_set_intfdata(usb_intf, NULL); 133 kfree(pdvobjpriv); 134 pdvobjpriv = NULL; 135 } 136exit: 137 return pdvobjpriv; 138} 139 140static void usb_dvobj_deinit(struct usb_interface *usb_intf) 141{ 142 struct dvobj_priv *dvobj = usb_get_intfdata(usb_intf); 143 144 145 usb_set_intfdata(usb_intf, NULL); 146 if (dvobj) { 147 /* Modify condition for 92DU DMDP 2010.11.18, by Thomas */ 148 if ((dvobj->NumInterfaces != 2 && 149 dvobj->NumInterfaces != 3) || 150 (dvobj->InterfaceNumber == 1)) { 151 if (interface_to_usbdev(usb_intf)->state != 152 USB_STATE_NOTATTACHED) { 153 /* If we didn't unplug usb dongle and 154 * remove/insert module, driver fails 155 * on sitesurvey for the first time when 156 * device is up . Reset usb port for sitesurvey 157 * fail issue. */ 158 DBG_88E("usb attached..., try to reset usb device\n"); 159 usb_reset_device(interface_to_usbdev(usb_intf)); 160 } 161 } 162 163 kfree(dvobj->usb_vendor_req_buf); 164 mutex_destroy(&dvobj->usb_vendor_req_mutex); 165 kfree(dvobj); 166 } 167 168 usb_put_dev(interface_to_usbdev(usb_intf)); 169 170} 171 172static void usb_intf_start(struct adapter *padapter) 173{ 174 RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+usb_intf_start\n")); 175 176 rtw_hal_inirp_init(padapter); 177 178 RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-usb_intf_start\n")); 179} 180 181static void usb_intf_stop(struct adapter *padapter) 182{ 183 RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+usb_intf_stop\n")); 184 185 /* disabel_hw_interrupt */ 186 if (!padapter->bSurpriseRemoved) { 187 /* device still exists, so driver can do i/o operation */ 188 /* TODO: */ 189 RT_TRACE(_module_hci_intfs_c_, _drv_err_, 190 ("SurpriseRemoved == false\n")); 191 } 192 193 /* cancel in irp */ 194 rtw_hal_inirp_deinit(padapter); 195 196 /* cancel out irp */ 197 usb_write_port_cancel(padapter); 198 199 /* todo:cancel other irps */ 200 201 RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-usb_intf_stop\n")); 202} 203 204static void rtw_dev_unload(struct adapter *padapter) 205{ 206 RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+rtw_dev_unload\n")); 207 208 if (padapter->bup) { 209 DBG_88E("===> rtw_dev_unload\n"); 210 padapter->bDriverStopped = true; 211 if (padapter->xmitpriv.ack_tx) 212 rtw_ack_tx_done(&padapter->xmitpriv, RTW_SCTX_DONE_DRV_STOP); 213 /* s3. */ 214 if (padapter->intf_stop) 215 padapter->intf_stop(padapter); 216 /* s4. */ 217 if (!padapter->pwrctrlpriv.bInternalAutoSuspend) 218 rtw_stop_drv_threads(padapter); 219 220 /* s5. */ 221 if (!padapter->bSurpriseRemoved) { 222 rtw_hal_deinit(padapter); 223 padapter->bSurpriseRemoved = true; 224 } 225 226 padapter->bup = false; 227 } else { 228 RT_TRACE(_module_hci_intfs_c_, _drv_err_, 229 ("r871x_dev_unload():padapter->bup == false\n")); 230 } 231 232 DBG_88E("<=== rtw_dev_unload\n"); 233 234 RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-rtw_dev_unload\n")); 235} 236 237static int rtw_suspend(struct usb_interface *pusb_intf, pm_message_t message) 238{ 239 struct dvobj_priv *dvobj = usb_get_intfdata(pusb_intf); 240 struct adapter *padapter = dvobj->if1; 241 struct net_device *pnetdev = padapter->pnetdev; 242 struct mlme_priv *pmlmepriv = &padapter->mlmepriv; 243 struct pwrctrl_priv *pwrpriv = &padapter->pwrctrlpriv; 244 245 int ret = 0; 246 u32 start_time = jiffies; 247 248 249 DBG_88E("==> %s (%s:%d)\n", __func__, current->comm, current->pid); 250 251 if ((!padapter->bup) || (padapter->bDriverStopped) || 252 (padapter->bSurpriseRemoved)) { 253 DBG_88E("padapter->bup=%d bDriverStopped=%d bSurpriseRemoved = %d\n", 254 padapter->bup, padapter->bDriverStopped, 255 padapter->bSurpriseRemoved); 256 goto exit; 257 } 258 259 pwrpriv->bInSuspend = true; 260 rtw_cancel_all_timer(padapter); 261 LeaveAllPowerSaveMode(padapter); 262 263 _enter_pwrlock(&pwrpriv->lock); 264 /* s1. */ 265 if (pnetdev) { 266 netif_carrier_off(pnetdev); 267 netif_tx_stop_all_queues(pnetdev); 268 } 269 270 /* s2. */ 271 rtw_disassoc_cmd(padapter, 0, false); 272 273 if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) && 274 check_fwstate(pmlmepriv, _FW_LINKED)) { 275 DBG_88E("%s:%d %s(%pM), length:%d assoc_ssid.length:%d\n", 276 __func__, __LINE__, 277 pmlmepriv->cur_network.network.Ssid.Ssid, 278 pmlmepriv->cur_network.network.MacAddress, 279 pmlmepriv->cur_network.network.Ssid.SsidLength, 280 pmlmepriv->assoc_ssid.SsidLength); 281 282 pmlmepriv->to_roaming = 1; 283 } 284 /* s2-2. indicate disconnect to os */ 285 rtw_indicate_disconnect(padapter); 286 /* s2-3. */ 287 rtw_free_assoc_resources(padapter, 1); 288 /* s2-4. */ 289 rtw_free_network_queue(padapter, true); 290 291 rtw_dev_unload(padapter); 292 _exit_pwrlock(&pwrpriv->lock); 293 294 if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) 295 rtw_indicate_scan_done(padapter, 1); 296 297 if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) 298 rtw_indicate_disconnect(padapter); 299 300exit: 301 DBG_88E("<=== %s return %d.............. in %dms\n", __func__ 302 , ret, rtw_get_passing_time_ms(start_time)); 303 304 return ret; 305} 306 307static int rtw_resume_process(struct adapter *padapter) 308{ 309 struct net_device *pnetdev; 310 struct pwrctrl_priv *pwrpriv = NULL; 311 int ret = -1; 312 u32 start_time = jiffies; 313 314 DBG_88E("==> %s (%s:%d)\n", __func__, current->comm, current->pid); 315 316 if (padapter) { 317 pnetdev = padapter->pnetdev; 318 pwrpriv = &padapter->pwrctrlpriv; 319 } else { 320 goto exit; 321 } 322 323 _enter_pwrlock(&pwrpriv->lock); 324 rtw_reset_drv_sw(padapter); 325 pwrpriv->bkeepfwalive = false; 326 327 DBG_88E("bkeepfwalive(%x)\n", pwrpriv->bkeepfwalive); 328 if (pm_netdev_open(pnetdev, true) != 0) 329 goto exit; 330 331 netif_device_attach(pnetdev); 332 netif_carrier_on(pnetdev); 333 334 _exit_pwrlock(&pwrpriv->lock); 335 336 if (padapter->pid[1] != 0) { 337 DBG_88E("pid[1]:%d\n", padapter->pid[1]); 338 rtw_signal_process(padapter->pid[1], SIGUSR2); 339 } 340 341 rtw_roaming(padapter, NULL); 342 343 ret = 0; 344exit: 345 if (pwrpriv) 346 pwrpriv->bInSuspend = false; 347 DBG_88E("<=== %s return %d.............. in %dms\n", __func__, 348 ret, rtw_get_passing_time_ms(start_time)); 349 350 351 return ret; 352} 353 354static int rtw_resume(struct usb_interface *pusb_intf) 355{ 356 struct dvobj_priv *dvobj = usb_get_intfdata(pusb_intf); 357 struct adapter *padapter = dvobj->if1; 358 359 return rtw_resume_process(padapter); 360} 361 362/* 363 * drv_init() - a device potentially for us 364 * 365 * notes: drv_init() is called when the bus driver has located 366 * a card for us to support. 367 * We accept the new device by returning 0. 368 */ 369 370static struct adapter *rtw_usb_if1_init(struct dvobj_priv *dvobj, 371 struct usb_interface *pusb_intf, const struct usb_device_id *pdid) 372{ 373 struct adapter *padapter = NULL; 374 struct net_device *pnetdev = NULL; 375 int status = _FAIL; 376 377 padapter = (struct adapter *)vzalloc(sizeof(*padapter)); 378 if (padapter == NULL) 379 goto exit; 380 padapter->dvobj = dvobj; 381 dvobj->if1 = padapter; 382 383 padapter->bDriverStopped = true; 384 mutex_init(&padapter->hw_init_mutex); 385 padapter->chip_type = RTL8188E; 386 387 pnetdev = rtw_init_netdev(padapter); 388 if (pnetdev == NULL) 389 goto free_adapter; 390 SET_NETDEV_DEV(pnetdev, dvobj_to_dev(dvobj)); 391 padapter = rtw_netdev_priv(pnetdev); 392 393 /* step 2. hook HalFunc, allocate HalData */ 394 hal_set_hal_ops(padapter); 395 396 padapter->intf_start = &usb_intf_start; 397 padapter->intf_stop = &usb_intf_stop; 398 399 /* step read_chip_version */ 400 rtw_hal_read_chip_version(padapter); 401 402 /* step usb endpoint mapping */ 403 rtw_hal_chip_configure(padapter); 404 405 /* step read efuse/eeprom data and get mac_addr */ 406 rtw_hal_read_chip_info(padapter); 407 408 /* step 5. */ 409 if (rtw_init_drv_sw(padapter) == _FAIL) { 410 RT_TRACE(_module_hci_intfs_c_, _drv_err_, 411 ("Initialize driver software resource Failed!\n")); 412 goto free_hal_data; 413 } 414 415#ifdef CONFIG_PM 416 if (padapter->pwrctrlpriv.bSupportRemoteWakeup) { 417 dvobj->pusbdev->do_remote_wakeup = 1; 418 pusb_intf->needs_remote_wakeup = 1; 419 device_init_wakeup(&pusb_intf->dev, 1); 420 DBG_88E("\n padapter->pwrctrlpriv.bSupportRemoteWakeup~~~~~~\n"); 421 DBG_88E("\n padapter->pwrctrlpriv.bSupportRemoteWakeup~~~[%d]~~~\n", 422 device_may_wakeup(&pusb_intf->dev)); 423 } 424#endif 425 426 /* 2012-07-11 Move here to prevent the 8723AS-VAU BT auto 427 * suspend influence */ 428 if (usb_autopm_get_interface(pusb_intf) < 0) 429 DBG_88E("can't get autopm:\n"); 430 431 /* alloc dev name after read efuse. */ 432 rtw_init_netdev_name(pnetdev, padapter->registrypriv.ifname); 433 rtw_macaddr_cfg(padapter->eeprompriv.mac_addr); 434 memcpy(pnetdev->dev_addr, padapter->eeprompriv.mac_addr, ETH_ALEN); 435 DBG_88E("MAC Address from pnetdev->dev_addr = %pM\n", 436 pnetdev->dev_addr); 437 438 /* step 6. Tell the network stack we exist */ 439 if (register_netdev(pnetdev) != 0) { 440 RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("register_netdev() failed\n")); 441 goto free_hal_data; 442 } 443 444 DBG_88E("bDriverStopped:%d, bSurpriseRemoved:%d, bup:%d, hw_init_completed:%d\n" 445 , padapter->bDriverStopped 446 , padapter->bSurpriseRemoved 447 , padapter->bup 448 , padapter->hw_init_completed 449 ); 450 451 status = _SUCCESS; 452 453free_hal_data: 454 if (status != _SUCCESS) 455 kfree(padapter->HalData); 456free_adapter: 457 if (status != _SUCCESS) { 458 if (pnetdev) 459 rtw_free_netdev(pnetdev); 460 else if (padapter) 461 vfree(padapter); 462 padapter = NULL; 463 } 464exit: 465 return padapter; 466} 467 468static void rtw_usb_if1_deinit(struct adapter *if1) 469{ 470 struct net_device *pnetdev = if1->pnetdev; 471 struct mlme_priv *pmlmepriv = &if1->mlmepriv; 472 473 if (check_fwstate(pmlmepriv, _FW_LINKED)) 474 rtw_disassoc_cmd(if1, 0, false); 475 476#ifdef CONFIG_88EU_AP_MODE 477 free_mlme_ap_info(if1); 478#endif 479 480 if (pnetdev) { 481 /* will call netdev_close() */ 482 unregister_netdev(pnetdev); 483 rtw_proc_remove_one(pnetdev); 484 } 485 rtw_cancel_all_timer(if1); 486 487 rtw_dev_unload(if1); 488 DBG_88E("+r871xu_dev_remove, hw_init_completed=%d\n", 489 if1->hw_init_completed); 490 rtw_free_drv_sw(if1); 491 if (pnetdev) 492 rtw_free_netdev(pnetdev); 493} 494 495static int rtw_drv_init(struct usb_interface *pusb_intf, const struct usb_device_id *pdid) 496{ 497 struct adapter *if1 = NULL; 498 int status = _FAIL; 499 struct dvobj_priv *dvobj; 500 501 RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+rtw_drv_init\n")); 502 503 /* Initialize dvobj_priv */ 504 dvobj = usb_dvobj_init(pusb_intf); 505 if (dvobj == NULL) { 506 RT_TRACE(_module_hci_intfs_c_, _drv_err_, 507 ("initialize device object priv Failed!\n")); 508 goto exit; 509 } 510 511 if1 = rtw_usb_if1_init(dvobj, pusb_intf, pdid); 512 if (if1 == NULL) { 513 DBG_88E("rtw_init_primarystruct adapter Failed!\n"); 514 goto free_dvobj; 515 } 516 517 if (ui_pid[1] != 0) { 518 DBG_88E("ui_pid[1]:%d\n", ui_pid[1]); 519 rtw_signal_process(ui_pid[1], SIGUSR2); 520 } 521 522 RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-871x_drv - drv_init, success!\n")); 523 524 status = _SUCCESS; 525 526free_dvobj: 527 if (status != _SUCCESS) 528 usb_dvobj_deinit(pusb_intf); 529exit: 530 return status == _SUCCESS ? 0 : -ENODEV; 531} 532 533/* 534 * dev_remove() - our device is being removed 535*/ 536/* rmmod module & unplug(SurpriseRemoved) will call r871xu_dev_remove() => how to recognize both */ 537static void rtw_dev_remove(struct usb_interface *pusb_intf) 538{ 539 struct dvobj_priv *dvobj = usb_get_intfdata(pusb_intf); 540 struct adapter *padapter = dvobj->if1; 541 542 543 DBG_88E("+rtw_dev_remove\n"); 544 RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("+dev_remove()\n")); 545 546 if (!pusb_intf->unregistering) 547 padapter->bSurpriseRemoved = true; 548 549 rtw_pm_set_ips(padapter, IPS_NONE); 550 rtw_pm_set_lps(padapter, PS_MODE_ACTIVE); 551 552 LeaveAllPowerSaveMode(padapter); 553 554 rtw_usb_if1_deinit(padapter); 555 556 usb_dvobj_deinit(pusb_intf); 557 558 RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-dev_remove()\n")); 559 DBG_88E("-r871xu_dev_remove, done\n"); 560 561 return; 562} 563 564static struct usb_driver rtl8188e_usb_drv = { 565 .name = "r8188eu", 566 .probe = rtw_drv_init, 567 .disconnect = rtw_dev_remove, 568 .id_table = rtw_usb_id_tbl, 569 .suspend = rtw_suspend, 570 .resume = rtw_resume, 571 .reset_resume = rtw_resume, 572}; 573 574module_usb_driver(rtl8188e_usb_drv) 575