Linux Audio

Check our new training course

Embedded Linux Audio

Check our new training course
with Creative Commons CC-BY-SA
lecture materials

Bootlin logo

Elixir Cross Referencer

Loading...
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
#include "headers.h"
#include <linux/usb/ch9.h>
static struct usb_device_id InterfaceUsbtable[] = {
	{ USB_DEVICE(BCM_USB_VENDOR_ID_T3, BCM_USB_PRODUCT_ID_T3) },
	{ USB_DEVICE(BCM_USB_VENDOR_ID_T3, BCM_USB_PRODUCT_ID_T3B) },
	{ USB_DEVICE(BCM_USB_VENDOR_ID_T3, BCM_USB_PRODUCT_ID_T3L) },
	{ USB_DEVICE(BCM_USB_VENDOR_ID_T3, BCM_USB_PRODUCT_ID_SYM) },
	{ USB_DEVICE(BCM_USB_VENDOR_ID_ZTE, BCM_USB_PRODUCT_ID_226) },
	{ USB_DEVICE(BCM_USB_VENDOR_ID_FOXCONN, BCM_USB_PRODUCT_ID_1901) },
	{ USB_DEVICE(BCM_USB_VENDOR_ID_ZTE, BCM_USB_PRODUCT_ID_ZTE_TU25) },
	{ USB_DEVICE(BCM_USB_VENDOR_ID_ZTE, BCM_USB_PRODUCT_ID_ZTE_226) },
	{ USB_DEVICE(BCM_USB_VENDOR_ID_ZTE, BCM_USB_PRODUCT_ID_ZTE_326) },
	{ }
};
MODULE_DEVICE_TABLE(usb, InterfaceUsbtable);

static int debug = -1;
module_param(debug, uint, 0600);
MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");

static const u32 default_msg =
	NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK
	| NETIF_MSG_TIMER | NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR
	| NETIF_MSG_IFUP | NETIF_MSG_IFDOWN;

static int InterfaceAdapterInit(struct bcm_interface_adapter *Adapter);

static void InterfaceAdapterFree(struct bcm_interface_adapter *psIntfAdapter)
{
	int i = 0;

	/* Wake up the wait_queue... */
	if (psIntfAdapter->psAdapter->LEDInfo.led_thread_running &
			BCM_LED_THREAD_RUNNING_ACTIVELY) {
		psIntfAdapter->psAdapter->DriverState = DRIVER_HALT;
		wake_up(&psIntfAdapter->psAdapter->LEDInfo.notify_led_event);
	}
	reset_card_proc(psIntfAdapter->psAdapter);

	/*
	 * worst case time taken by the RDM/WRM will be 5 sec. will check after
	 * every 100 ms to accertain the device is not being accessed. After
	 * this No RDM/WRM should be made.
	 */
	while (psIntfAdapter->psAdapter->DeviceAccess) {
		BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT,
				DRV_ENTRY, DBG_LVL_ALL,
				"Device is being accessed.\n");
		msleep(100);
	}
	/* Free interrupt URB */
	/* psIntfAdapter->psAdapter->device_removed = TRUE; */
	usb_free_urb(psIntfAdapter->psInterruptUrb);

	/* Free transmit URBs */
	for (i = 0; i < MAXIMUM_USB_TCB; i++) {
		if (psIntfAdapter->asUsbTcb[i].urb  != NULL) {
			usb_free_urb(psIntfAdapter->asUsbTcb[i].urb);
			psIntfAdapter->asUsbTcb[i].urb = NULL;
		}
	}
	/* Free receive URB and buffers */
	for (i = 0; i < MAXIMUM_USB_RCB; i++) {
		if (psIntfAdapter->asUsbRcb[i].urb != NULL) {
			kfree(psIntfAdapter->asUsbRcb[i].urb->transfer_buffer);
			usb_free_urb(psIntfAdapter->asUsbRcb[i].urb);
			psIntfAdapter->asUsbRcb[i].urb = NULL;
		}
	}
	AdapterFree(psIntfAdapter->psAdapter);
}

static void ConfigureEndPointTypesThroughEEPROM(struct bcm_mini_adapter *Adapter)
{
	u32 ulReg;
	int bytes;
	struct bcm_interface_adapter *interfaceAdapter;

	/* Program EP2 MAX_PKT_SIZE */
	ulReg = ntohl(EP2_MPS_REG);
	BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x128, 4, TRUE);
	ulReg = ntohl(EP2_MPS);
	BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x12C, 4, TRUE);

	ulReg = ntohl(EP2_CFG_REG);
	BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x132, 4, TRUE);
	interfaceAdapter =
		(struct bcm_interface_adapter *)(Adapter->pvInterfaceAdapter);
	if (interfaceAdapter->bHighSpeedDevice) {
		ulReg = ntohl(EP2_CFG_INT);
		BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x136, 4, TRUE);
	} else {
		/* USE BULK EP as TX in FS mode. */
		ulReg = ntohl(EP2_CFG_BULK);
		BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x136, 4, TRUE);
	}

	/* Program EP4 MAX_PKT_SIZE. */
	ulReg = ntohl(EP4_MPS_REG);
	BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x13C, 4, TRUE);
	ulReg = ntohl(EP4_MPS);
	BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x140, 4, TRUE);

	/* Program TX EP as interrupt(Alternate Setting) */
	bytes = rdmalt(Adapter, 0x0F0110F8, &ulReg, sizeof(u32));
	if (bytes < 0) {
		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, DRV_ENTRY,
				DBG_LVL_ALL, "reading of Tx EP failed\n");
		return;
	}
	ulReg |= 0x6;

	ulReg = ntohl(ulReg);
	BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1CC, 4, TRUE);

	ulReg = ntohl(EP4_CFG_REG);
	BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1C8, 4, TRUE);
	/* Program ISOCHRONOUS EP size to zero. */
	ulReg = ntohl(ISO_MPS_REG);
	BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1D2, 4, TRUE);
	ulReg = ntohl(ISO_MPS);
	BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1D6, 4, TRUE);

	/*
	 * Update EEPROM Version.
	 * Read 4 bytes from 508 and modify 511 and 510.
	 */
	ReadBeceemEEPROM(Adapter, 0x1FC, &ulReg);
	ulReg &= 0x0101FFFF;
	BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1FC, 4, TRUE);

	/* Update length field if required. Also make the string NULL terminated. */

	ReadBeceemEEPROM(Adapter, 0xA8, &ulReg);
	if ((ulReg&0x00FF0000)>>16 > 0x30) {
		ulReg = (ulReg&0xFF00FFFF)|(0x30<<16);
		BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0xA8, 4, TRUE);
	}
	ReadBeceemEEPROM(Adapter, 0x148, &ulReg);
	if ((ulReg&0x00FF0000)>>16 > 0x30) {
		ulReg = (ulReg&0xFF00FFFF)|(0x30<<16);
		BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x148, 4, TRUE);
	}
	ulReg = 0;
	BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x122, 4, TRUE);
	ulReg = 0;
	BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x1C2, 4, TRUE);
}

static int usbbcm_device_probe(struct usb_interface *intf, const struct usb_device_id *id)
{
	struct usb_device *udev = interface_to_usbdev(intf);
	int retval;
	struct bcm_mini_adapter *psAdapter;
	struct bcm_interface_adapter *psIntfAdapter;
	struct net_device *ndev;

	/* Reserve one extra queue for the bit-bucket */
	ndev = alloc_etherdev_mq(sizeof(struct bcm_mini_adapter),
			NO_OF_QUEUES + 1);
	if (ndev == NULL) {
		dev_err(&udev->dev, DRV_NAME ": no memory for device\n");
		return -ENOMEM;
	}

	SET_NETDEV_DEV(ndev, &intf->dev);

	psAdapter = netdev_priv(ndev);
	psAdapter->dev = ndev;
	psAdapter->msg_enable = netif_msg_init(debug, default_msg);

	/* Init default driver debug state */

	psAdapter->stDebugState.debug_level = DBG_LVL_CURR;
	psAdapter->stDebugState.type = DBG_TYPE_INITEXIT;

	/*
	 * Technically, one can start using BCM_DEBUG_PRINT after this point.
	 * However, realize that by default the Type/Subtype bitmaps are all
	 * zero now; so no prints will actually appear until the TestApp turns
	 * on debug paths via the ioctl(); so practically speaking, in early
	 * init, no logging happens.
	 *
	 * A solution (used below): we explicitly set the bitmaps to 1 for
	 * Type=DBG_TYPE_INITEXIT and ALL subtype's of the same. Now all bcm
	 * debug statements get logged, enabling debug during early init.
	 * Further, we turn this OFF once init_module() completes.
	 */

	psAdapter->stDebugState.subtype[DBG_TYPE_INITEXIT] = 0xff;
	BCM_SHOW_DEBUG_BITMAP(psAdapter);

	retval = InitAdapter(psAdapter);
	if (retval) {
		dev_err(&udev->dev, DRV_NAME ": InitAdapter Failed\n");
		AdapterFree(psAdapter);
		return retval;
	}

	/* Allocate interface adapter structure */
	psIntfAdapter = kzalloc(sizeof(struct bcm_interface_adapter),
			GFP_KERNEL);
	if (psIntfAdapter == NULL) {
		AdapterFree(psAdapter);
		return -ENOMEM;
	}

	psAdapter->pvInterfaceAdapter = psIntfAdapter;
	psIntfAdapter->psAdapter = psAdapter;

	/* Store usb interface in Interface Adapter */
	psIntfAdapter->interface = intf;
	usb_set_intfdata(intf, psIntfAdapter);

	BCM_DEBUG_PRINT(psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
			"psIntfAdapter 0x%p\n", psIntfAdapter);
	retval = InterfaceAdapterInit(psIntfAdapter);
	if (retval) {
		/* If the Firmware/Cfg File is not present
		 * then return success, let the application
		 * download the files.
		 */
		if (-ENOENT == retval) {
			BCM_DEBUG_PRINT(psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY,
					DBG_LVL_ALL,
					"File Not Found.  Use app to download.\n");
			return STATUS_SUCCESS;
		}
		BCM_DEBUG_PRINT(psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY,
				DBG_LVL_ALL, "InterfaceAdapterInit failed.\n");
		usb_set_intfdata(intf, NULL);
		udev = interface_to_usbdev(intf);
		usb_put_dev(udev);
		InterfaceAdapterFree(psIntfAdapter);
		return retval;
	}
	if (psAdapter->chip_id > T3) {
		uint32_t uiNackZeroLengthInt = 4;

		retval =
			wrmalt(psAdapter, DISABLE_USB_ZERO_LEN_INT,
					&uiNackZeroLengthInt,
					sizeof(uiNackZeroLengthInt));
		if (retval)
			return retval;
	}

	/* Check whether the USB-Device Supports remote Wake-Up */
	if (USB_CONFIG_ATT_WAKEUP & udev->actconfig->desc.bmAttributes) {
		/* If Suspend then only support dynamic suspend */
		if (psAdapter->bDoSuspend) {
#ifdef CONFIG_PM
			pm_runtime_set_autosuspend_delay(&udev->dev, 0);
			intf->needs_remote_wakeup = 1;
			usb_enable_autosuspend(udev);
			device_init_wakeup(&intf->dev, 1);
			INIT_WORK(&psIntfAdapter->usbSuspendWork,
					putUsbSuspend);
			BCM_DEBUG_PRINT(psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY,
					DBG_LVL_ALL,
					"Enabling USB Auto-Suspend\n");
#endif
		} else {
			intf->needs_remote_wakeup = 0;
			usb_disable_autosuspend(udev);
		}
	}

	psAdapter->stDebugState.subtype[DBG_TYPE_INITEXIT] = 0x0;
	return retval;
}

static void usbbcm_disconnect(struct usb_interface *intf)
{
	struct bcm_interface_adapter *psIntfAdapter = usb_get_intfdata(intf);
	struct bcm_mini_adapter *psAdapter;
	struct usb_device  *udev = interface_to_usbdev(intf);

	if (psIntfAdapter == NULL)
		return;

	psAdapter = psIntfAdapter->psAdapter;
	netif_device_detach(psAdapter->dev);

	if (psAdapter->bDoSuspend)
		intf->needs_remote_wakeup = 0;

	psAdapter->device_removed = TRUE;
	usb_set_intfdata(intf, NULL);
	InterfaceAdapterFree(psIntfAdapter);
	usb_put_dev(udev);
}

static int AllocUsbCb(struct bcm_interface_adapter *psIntfAdapter)
{
	int i = 0;

	for (i = 0; i < MAXIMUM_USB_TCB; i++) {
		psIntfAdapter->asUsbTcb[i].urb = usb_alloc_urb(0, GFP_KERNEL);

		if (psIntfAdapter->asUsbTcb[i].urb == NULL) {
			BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
					DBG_TYPE_PRINTK, 0, 0,
					"Can't allocate Tx urb for index %d\n",
					i);
			return -ENOMEM;
		}
	}

	for (i = 0; i < MAXIMUM_USB_RCB; i++) {
		psIntfAdapter->asUsbRcb[i].urb = usb_alloc_urb(0, GFP_KERNEL);

		if (psIntfAdapter->asUsbRcb[i].urb == NULL) {
			BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
					DBG_TYPE_PRINTK, 0, 0,
					"Can't allocate Rx urb for index %d\n",
					i);
			return -ENOMEM;
		}

		psIntfAdapter->asUsbRcb[i].urb->transfer_buffer =
			kmalloc(MAX_DATA_BUFFER_SIZE, GFP_KERNEL);

		if (psIntfAdapter->asUsbRcb[i].urb->transfer_buffer == NULL) {
			BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
					DBG_TYPE_PRINTK, 0, 0,
					"Can't allocate Rx buffer for index %d\n",
					i);
			return -ENOMEM;
		}
		psIntfAdapter->asUsbRcb[i].urb->transfer_buffer_length =
			MAX_DATA_BUFFER_SIZE;
	}
	return 0;
}

static int device_run(struct bcm_interface_adapter *psIntfAdapter)
{
	int value = 0;
	UINT status = STATUS_SUCCESS;

	status = InitCardAndDownloadFirmware(psIntfAdapter->psAdapter);
	if (status != STATUS_SUCCESS) {
		pr_err(DRV_NAME "InitCardAndDownloadFirmware failed.\n");
		return status;
	}
	if (psIntfAdapter->psAdapter->fw_download_done) {
		if (StartInterruptUrb(psIntfAdapter)) {
			BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
					DBG_TYPE_INITEXIT, DRV_ENTRY,
					DBG_LVL_ALL,
					"Cannot send interrupt in URB\n");
		}

		/*
		 * now register the cntrl interface.  after downloading the f/w
		 * waiting for 5 sec to get the mailbox interrupt.
		 */
		psIntfAdapter->psAdapter->waiting_to_fw_download_done = false;
		value = wait_event_timeout(
				psIntfAdapter->psAdapter->ioctl_fw_dnld_wait_queue,
				psIntfAdapter->psAdapter->waiting_to_fw_download_done,
				5 * HZ);

		if (value == 0)
			pr_err(DRV_NAME ": Timeout waiting for mailbox interrupt.\n");

		if (register_control_device_interface(
					psIntfAdapter->psAdapter) < 0) {
			pr_err(DRV_NAME ": Register Control Device failed.\n");
			return -EIO;
		}
	}
	return 0;
}

static int InterfaceAdapterInit(struct bcm_interface_adapter *psIntfAdapter)
{
	struct usb_host_interface *iface_desc;
	struct usb_endpoint_descriptor *endpoint;
	size_t buffer_size;
	unsigned long value;
	int retval = 0;
	int usedIntOutForBulkTransfer = 0;
	bool bBcm16 = false;
	UINT uiData = 0;
	int bytes;

	/* Store the usb dev into interface adapter */
	psIntfAdapter->udev =
		usb_get_dev(interface_to_usbdev(psIntfAdapter->interface));

	psIntfAdapter->bHighSpeedDevice =
		(psIntfAdapter->udev->speed == USB_SPEED_HIGH);
	psIntfAdapter->psAdapter->interface_rdm = BcmRDM;
	psIntfAdapter->psAdapter->interface_wrm = BcmWRM;

	bytes = rdmalt(psIntfAdapter->psAdapter, CHIP_ID_REG,
			(u32 *) &(psIntfAdapter->psAdapter->chip_id),
			sizeof(u32));
	if (bytes < 0) {
		retval = bytes;
		BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0,
				"CHIP ID Read Failed\n");
		return retval;
	}

	if (0xbece3200 == (psIntfAdapter->psAdapter->chip_id & ~(0xF0)))
		psIntfAdapter->psAdapter->chip_id &= ~0xF0;

	dev_info(&psIntfAdapter->udev->dev, "RDM Chip ID 0x%lx\n",
			psIntfAdapter->psAdapter->chip_id);

	iface_desc = psIntfAdapter->interface->cur_altsetting;

	if (psIntfAdapter->psAdapter->chip_id == T3B) {
		/* T3B device will have EEPROM, check if EEPROM is proper and
		 * BCM16 can be done or not. */
		BeceemEEPROMBulkRead(psIntfAdapter->psAdapter, &uiData, 0x0, 4);
		if (uiData == BECM)
			bBcm16 = TRUE;

		dev_info(&psIntfAdapter->udev->dev,
				"number of alternate setting %d\n",
				psIntfAdapter->interface->num_altsetting);

		if (bBcm16 == TRUE) {
			/* selecting alternate setting one as a default setting
			 * for High Speed  modem. */
			if (psIntfAdapter->bHighSpeedDevice)
				retval = usb_set_interface(psIntfAdapter->udev,
						DEFAULT_SETTING_0,
						ALTERNATE_SETTING_1);
			BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
					DBG_TYPE_INITEXIT, DRV_ENTRY,
					DBG_LVL_ALL,
					"BCM16 is applicable on this dongle\n");
			if (retval || !psIntfAdapter->bHighSpeedDevice) {
				usedIntOutForBulkTransfer = EP2;
				endpoint = &iface_desc->endpoint[EP2].desc;
				BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
						DBG_TYPE_INITEXIT, DRV_ENTRY,
						DBG_LVL_ALL,
						"Interface altsetting failed or modem is configured to Full Speed, hence will work on default setting 0\n");
				/*
				 * If Modem is high speed device EP2 should be
				 * INT OUT End point
				 *
				 * If Mode is FS then EP2 should be bulk end
				 * point
				 */
				if ((psIntfAdapter->bHighSpeedDevice &&
							!usb_endpoint_is_int_out(endpoint)) ||
						(!psIntfAdapter->bHighSpeedDevice &&
						 !usb_endpoint_is_bulk_out(endpoint))) {
					BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
							DBG_TYPE_INITEXIT,
							DRV_ENTRY, DBG_LVL_ALL,
							"Configuring the EEPROM\n");
					/* change the EP2, EP4 to INT OUT end point */
					ConfigureEndPointTypesThroughEEPROM(
							psIntfAdapter->psAdapter);

					/*
					 * It resets the device and if any thing
					 * gets changed in USB descriptor it
					 * will show fail and re-enumerate the
					 * device
					 */
					retval = usb_reset_device(
							psIntfAdapter->udev);
					if (retval) {
						BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
								DBG_TYPE_INITEXIT,
								DRV_ENTRY,
								DBG_LVL_ALL,
								"reset failed.  Re-enumerating the device.\n");
						return retval;
					}

				}
				if (!psIntfAdapter->bHighSpeedDevice &&
				    usb_endpoint_is_bulk_out(endpoint)) {
					/* Once BULK is selected in FS mode. Revert it back to INT. Else USB_IF will fail. */
					UINT _uiData = ntohl(EP2_CFG_INT);
					BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
							DBG_TYPE_INITEXIT,
							DRV_ENTRY, DBG_LVL_ALL,
							"Reverting Bulk to INT as it is in Full Speed mode.\n");
					BeceemEEPROMBulkWrite(
							psIntfAdapter->psAdapter,
							(PUCHAR) & _uiData,
							0x136, 4, TRUE);
				}
			} else {
				usedIntOutForBulkTransfer = EP4;
				endpoint = &iface_desc->endpoint[EP4].desc;
				BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
						DBG_TYPE_INITEXIT, DRV_ENTRY,
						DBG_LVL_ALL,
						"Choosing AltSetting as a default setting.\n");
				if (!usb_endpoint_is_int_out(endpoint)) {
					BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
							DBG_TYPE_INITEXIT,
							DRV_ENTRY, DBG_LVL_ALL,
							"Dongle does not have BCM16 Fix.\n");
					/* change the EP2, EP4 to INT OUT end point and use EP4 in altsetting */
					ConfigureEndPointTypesThroughEEPROM(
							psIntfAdapter->psAdapter);

					/*
					 * It resets the device and if any thing
					 * gets changed in USB descriptor it
					 * will show fail and re-enumerate the
					 * device
					 */
					retval = usb_reset_device(
							psIntfAdapter->udev);
					if (retval) {
						BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
								DBG_TYPE_INITEXIT,
								DRV_ENTRY,
								DBG_LVL_ALL,
								"reset failed.  Re-enumerating the device.\n");
						return retval;
					}

				}
			}
		}
	}

	iface_desc = psIntfAdapter->interface->cur_altsetting;

	for (value = 0; value < iface_desc->desc.bNumEndpoints; ++value) {
		endpoint = &iface_desc->endpoint[value].desc;

		if (!psIntfAdapter->sBulkIn.bulk_in_endpointAddr &&
				usb_endpoint_is_bulk_in(endpoint)) {
			buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
			psIntfAdapter->sBulkIn.bulk_in_size = buffer_size;
			psIntfAdapter->sBulkIn.bulk_in_endpointAddr =
				endpoint->bEndpointAddress;
			psIntfAdapter->sBulkIn.bulk_in_pipe = usb_rcvbulkpipe(
					psIntfAdapter->udev,
					psIntfAdapter->sBulkIn.bulk_in_endpointAddr);
		}

		if (!psIntfAdapter->sBulkOut.bulk_out_endpointAddr &&
				usb_endpoint_is_bulk_out(endpoint)) {
			psIntfAdapter->sBulkOut.bulk_out_endpointAddr =
				endpoint->bEndpointAddress;
			psIntfAdapter->sBulkOut.bulk_out_pipe = usb_sndbulkpipe(
					psIntfAdapter->udev,
					psIntfAdapter->sBulkOut.bulk_out_endpointAddr);
		}

		if (!psIntfAdapter->sIntrIn.int_in_endpointAddr &&
				usb_endpoint_is_int_in(endpoint)) {
			buffer_size = le16_to_cpu(endpoint->wMaxPacketSize);
			psIntfAdapter->sIntrIn.int_in_size = buffer_size;
			psIntfAdapter->sIntrIn.int_in_endpointAddr =
				endpoint->bEndpointAddress;
			psIntfAdapter->sIntrIn.int_in_interval =
				endpoint->bInterval;
			psIntfAdapter->sIntrIn.int_in_buffer =
				kmalloc(buffer_size, GFP_KERNEL);
			if (!psIntfAdapter->sIntrIn.int_in_buffer)
				return -EINVAL;
		}

		if (!psIntfAdapter->sIntrOut.int_out_endpointAddr &&
				usb_endpoint_is_int_out(endpoint)) {
			if (!psIntfAdapter->sBulkOut.bulk_out_endpointAddr &&
					(psIntfAdapter->psAdapter->chip_id == T3B) &&
					(value == usedIntOutForBulkTransfer)) {
				/* use first intout end point as a bulk out end point */
				buffer_size =
					le16_to_cpu(endpoint->wMaxPacketSize);
				psIntfAdapter->sBulkOut.bulk_out_size =
					buffer_size;
				psIntfAdapter->sBulkOut.bulk_out_endpointAddr =
					endpoint->bEndpointAddress;
				psIntfAdapter->sBulkOut.bulk_out_pipe =
					usb_sndintpipe(psIntfAdapter->udev,
							psIntfAdapter->sBulkOut
							.bulk_out_endpointAddr);
				psIntfAdapter->sBulkOut.int_out_interval =
					endpoint->bInterval;
			} else if (value == EP6) {
				buffer_size =
					le16_to_cpu(endpoint->wMaxPacketSize);
				psIntfAdapter->sIntrOut.int_out_size =
					buffer_size;
				psIntfAdapter->sIntrOut.int_out_endpointAddr =
					endpoint->bEndpointAddress;
				psIntfAdapter->sIntrOut.int_out_interval =
					endpoint->bInterval;
				psIntfAdapter->sIntrOut.int_out_buffer =
					kmalloc(buffer_size, GFP_KERNEL);
				if (!psIntfAdapter->sIntrOut.int_out_buffer)
					return -EINVAL;
			}
		}
	}

	usb_set_intfdata(psIntfAdapter->interface, psIntfAdapter);

	psIntfAdapter->psAdapter->bcm_file_download = InterfaceFileDownload;
	psIntfAdapter->psAdapter->bcm_file_readback_from_chip =
		InterfaceFileReadbackFromChip;
	psIntfAdapter->psAdapter->interface_transmit = InterfaceTransmitPacket;

	retval = CreateInterruptUrb(psIntfAdapter);

	if (retval) {
		BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0,
				"Cannot create interrupt urb\n");
		return retval;
	}

	retval = AllocUsbCb(psIntfAdapter);
	if (retval)
		return retval;

	return device_run(psIntfAdapter);
}

static int InterfaceSuspend(struct usb_interface *intf, pm_message_t message)
{
	struct bcm_interface_adapter *psIntfAdapter = usb_get_intfdata(intf);

	psIntfAdapter->bSuspended = TRUE;

	if (psIntfAdapter->bPreparingForBusSuspend) {
		psIntfAdapter->bPreparingForBusSuspend = false;

		if (psIntfAdapter->psAdapter->LinkStatus == LINKUP_DONE) {
			psIntfAdapter->psAdapter->IdleMode = TRUE;
			BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
					DBG_TYPE_INITEXIT, DRV_ENTRY,
					DBG_LVL_ALL,
					"Host Entered in PMU Idle Mode.\n");
		} else {
			psIntfAdapter->psAdapter->bShutStatus = TRUE;
			BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,
					DBG_TYPE_INITEXIT, DRV_ENTRY,
					DBG_LVL_ALL,
					"Host Entered in PMU Shutdown Mode.\n");
		}
	}
	psIntfAdapter->psAdapter->bPreparingForLowPowerMode = false;

	/* Signaling the control pkt path */
	wake_up(&psIntfAdapter->psAdapter->lowpower_mode_wait_queue);

	return 0;
}

static int InterfaceResume(struct usb_interface *intf)
{
	struct bcm_interface_adapter *psIntfAdapter = usb_get_intfdata(intf);

	mdelay(100);
	psIntfAdapter->bSuspended = false;

	StartInterruptUrb(psIntfAdapter);
	InterfaceRx(psIntfAdapter);
	return 0;
}

static struct usb_driver usbbcm_driver = {
	.name = "usbbcm",
	.probe = usbbcm_device_probe,
	.disconnect = usbbcm_disconnect,
	.suspend = InterfaceSuspend,
	.resume = InterfaceResume,
	.id_table = InterfaceUsbtable,
	.supports_autosuspend = 1,
};

struct class *bcm_class;

static __init int bcm_init(void)
{
	int retval;

	pr_info("%s: %s, %s\n", DRV_NAME, DRV_DESCRIPTION, DRV_VERSION);
	pr_info("%s\n", DRV_COPYRIGHT);

	bcm_class = class_create(THIS_MODULE, DRV_NAME);
	if (IS_ERR(bcm_class)) {
		pr_err(DRV_NAME ": could not create class\n");
		return PTR_ERR(bcm_class);
	}

	retval = usb_register(&usbbcm_driver);
	if (retval < 0) {
		pr_err(DRV_NAME ": could not register usb driver\n");
		class_destroy(bcm_class);
		return retval;
	}
	return 0;
}

static __exit void bcm_exit(void)
{
	usb_deregister(&usbbcm_driver);
	class_destroy(bcm_class);
}

module_init(bcm_init);
module_exit(bcm_exit);

MODULE_DESCRIPTION(DRV_DESCRIPTION);
MODULE_VERSION(DRV_VERSION);
MODULE_LICENSE("GPL");