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