184 	struct us_data *us = usb_get_intfdata(iface);  in usb_stor_suspend()  local
187 	mutex_lock(&us->dev_mutex);  in usb_stor_suspend()
189 	if (us->suspend_resume_hook)  in usb_stor_suspend()
190 		(us->suspend_resume_hook)(us, US_SUSPEND);  in usb_stor_suspend()
195 	mutex_unlock(&us->dev_mutex);  in usb_stor_suspend()
202 	struct us_data *us = usb_get_intfdata(iface);  in usb_stor_resume()  local
204 	mutex_lock(&us->dev_mutex);  in usb_stor_resume()
206 	if (us->suspend_resume_hook)  in usb_stor_resume()
207 		(us->suspend_resume_hook)(us, US_RESUME);  in usb_stor_resume()
209 	mutex_unlock(&us->dev_mutex);  in usb_stor_resume()
216 	struct us_data *us = usb_get_intfdata(iface);  in usb_stor_reset_resume()  local
219 	usb_stor_report_bus_reset(us);  in usb_stor_reset_resume()
236 	struct us_data *us = usb_get_intfdata(iface);  in usb_stor_pre_reset()  local
239 	mutex_lock(&us->dev_mutex);  in usb_stor_pre_reset()
246 	struct us_data *us = usb_get_intfdata(iface);  in usb_stor_post_reset()  local
249 	usb_stor_report_bus_reset(us);  in usb_stor_post_reset()
254 	mutex_unlock(&us->dev_mutex);  in usb_stor_post_reset()
268 void fill_inquiry_response(struct us_data *us, unsigned char *data,  in fill_inquiry_response()  argument
285 		u16 bcdDevice = le16_to_cpu(us->pusb_dev->descriptor.bcdDevice);  in fill_inquiry_response()
288 		n = strlen(us->unusual_dev->vendorName);  in fill_inquiry_response()
289 		memcpy(data+8, us->unusual_dev->vendorName, min(8, n));  in fill_inquiry_response()
290 		n = strlen(us->unusual_dev->productName);  in fill_inquiry_response()
291 		memcpy(data+16, us->unusual_dev->productName, min(16, n));  in fill_inquiry_response()
299 	usb_stor_set_xfer_buf(data, data_len, us->srb);  in fill_inquiry_response()
305 	struct us_data *us = (struct us_data *)__us;  in usb_stor_control_thread()  local
306 	struct Scsi_Host *host = us_to_host(us);  in usb_stor_control_thread()
309 		usb_stor_dbg(us, "*** thread sleeping\n");  in usb_stor_control_thread()
310 		if (wait_for_completion_interruptible(&us->cmnd_ready))  in usb_stor_control_thread()
313 		usb_stor_dbg(us, "*** thread awakened\n");  in usb_stor_control_thread()
316 		mutex_lock(&(us->dev_mutex));  in usb_stor_control_thread()
322 		if (us->srb == NULL) {  in usb_stor_control_thread()
324 			mutex_unlock(&us->dev_mutex);  in usb_stor_control_thread()
325 			usb_stor_dbg(us, "-- exiting\n");  in usb_stor_control_thread()
330 		if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) {  in usb_stor_control_thread()
331 			us->srb->result = DID_ABORT << 16;  in usb_stor_control_thread()
340 		if (us->srb->sc_data_direction == DMA_BIDIRECTIONAL) {  in usb_stor_control_thread()
341 			usb_stor_dbg(us, "UNKNOWN data direction\n");  in usb_stor_control_thread()
342 			us->srb->result = DID_ERROR << 16;  in usb_stor_control_thread()
348 		else if (us->srb->device->id &&  in usb_stor_control_thread()
349 				!(us->fflags & US_FL_SCM_MULT_TARG)) {  in usb_stor_control_thread()
350 			usb_stor_dbg(us, "Bad target number (%d:%llu)\n",  in usb_stor_control_thread()
351 				     us->srb->device->id,  in usb_stor_control_thread()
352 				     us->srb->device->lun);  in usb_stor_control_thread()
353 			us->srb->result = DID_BAD_TARGET << 16;  in usb_stor_control_thread()
356 		else if (us->srb->device->lun > us->max_lun) {  in usb_stor_control_thread()
357 			usb_stor_dbg(us, "Bad LUN (%d:%llu)\n",  in usb_stor_control_thread()
358 				     us->srb->device->id,  in usb_stor_control_thread()
359 				     us->srb->device->lun);  in usb_stor_control_thread()
360 			us->srb->result = DID_BAD_TARGET << 16;  in usb_stor_control_thread()
365 		else if ((us->srb->cmnd[0] == INQUIRY) &&  in usb_stor_control_thread()
366 			    (us->fflags & US_FL_FIX_INQUIRY)) {  in usb_stor_control_thread()
371 			usb_stor_dbg(us, "Faking INQUIRY command\n");  in usb_stor_control_thread()
372 			fill_inquiry_response(us, data_ptr, 36);  in usb_stor_control_thread()
373 			us->srb->result = SAM_STAT_GOOD;  in usb_stor_control_thread()
378 			US_DEBUG(usb_stor_show_command(us, us->srb));  in usb_stor_control_thread()
379 			us->proto_handler(us->srb, us);  in usb_stor_control_thread()
380 			usb_mark_last_busy(us->pusb_dev);  in usb_stor_control_thread()
387 		if (us->srb->result != DID_ABORT << 16) {  in usb_stor_control_thread()
388 			usb_stor_dbg(us, "scsi cmd done, result=0x%x\n",  in usb_stor_control_thread()
389 				     us->srb->result);  in usb_stor_control_thread()
390 			us->srb->scsi_done(us->srb);  in usb_stor_control_thread()
393 			usb_stor_dbg(us, "scsi command aborted\n");  in usb_stor_control_thread()
401 		if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) {  in usb_stor_control_thread()
402 			complete(&(us->notify));  in usb_stor_control_thread()
405 			clear_bit(US_FLIDX_ABORTING, &us->dflags);  in usb_stor_control_thread()
406 			clear_bit(US_FLIDX_TIMED_OUT, &us->dflags);  in usb_stor_control_thread()
410 		us->srb = NULL;  in usb_stor_control_thread()
414 		mutex_unlock(&us->dev_mutex);  in usb_stor_control_thread()
433 static int associate_dev(struct us_data *us, struct usb_interface *intf)  in associate_dev()  argument
436 	us->pusb_dev = interface_to_usbdev(intf);  in associate_dev()
437 	us->pusb_intf = intf;  in associate_dev()
438 	us->ifnum = intf->cur_altsetting->desc.bInterfaceNumber;  in associate_dev()
439 	usb_stor_dbg(us, "Vendor: 0x%04x, Product: 0x%04x, Revision: 0x%04x\n",  in associate_dev()
440 		     le16_to_cpu(us->pusb_dev->descriptor.idVendor),  in associate_dev()
441 		     le16_to_cpu(us->pusb_dev->descriptor.idProduct),  in associate_dev()
442 		     le16_to_cpu(us->pusb_dev->descriptor.bcdDevice));  in associate_dev()
443 	usb_stor_dbg(us, "Interface Subclass: 0x%02x, Protocol: 0x%02x\n",  in associate_dev()
448 	usb_set_intfdata(intf, us);  in associate_dev()
451 	us->cr = kmalloc(sizeof(*us->cr), GFP_KERNEL);  in associate_dev()
452 	if (!us->cr)  in associate_dev()
455 	us->iobuf = usb_alloc_coherent(us->pusb_dev, US_IOBUF_SIZE,  in associate_dev()
456 			GFP_KERNEL, &us->iobuf_dma);  in associate_dev()
457 	if (!us->iobuf) {  in associate_dev()
458 		usb_stor_dbg(us, "I/O buffer allocation failed\n");  in associate_dev()
574 static int get_device_info(struct us_data *us, const struct usb_device_id *id,  in get_device_info()  argument
577 	struct usb_device *dev = us->pusb_dev;  in get_device_info()
579 		&us->pusb_intf->cur_altsetting->desc;  in get_device_info()
580 	struct device *pdev = &us->pusb_intf->dev;  in get_device_info()
583 	us->unusual_dev = unusual_dev;  in get_device_info()
584 	us->subclass = (unusual_dev->useProtocol == USB_SC_DEVICE) ?  in get_device_info()
587 	us->protocol = (unusual_dev->useTransport == USB_PR_DEVICE) ?  in get_device_info()
590 	us->fflags = id->driver_info;  in get_device_info()
591 	usb_stor_adjust_quirks(us->pusb_dev, &us->fflags);  in get_device_info()
593 	if (us->fflags & US_FL_IGNORE_DEVICE) {  in get_device_info()
603 		us->fflags &= ~US_FL_GO_SLOW;  in get_device_info()
605 	if (us->fflags)  in get_device_info()
609 				us->fflags);  in get_device_info()
625 			us->subclass == idesc->bInterfaceSubClass)  in get_device_info()
628 			us->protocol == idesc->bInterfaceProtocol)  in get_device_info()
630 		if (msg >= 0 && !(us->fflags & US_FL_NEED_OVERRIDE))  in get_device_info()
651 static void get_transport(struct us_data *us)  in get_transport()  argument
653 	switch (us->protocol) {  in get_transport()
655 		us->transport_name = "Control/Bulk";  in get_transport()
656 		us->transport = usb_stor_CB_transport;  in get_transport()
657 		us->transport_reset = usb_stor_CB_reset;  in get_transport()
658 		us->max_lun = 7;  in get_transport()
662 		us->transport_name = "Control/Bulk/Interrupt";  in get_transport()
663 		us->transport = usb_stor_CB_transport;  in get_transport()
664 		us->transport_reset = usb_stor_CB_reset;  in get_transport()
665 		us->max_lun = 7;  in get_transport()
669 		us->transport_name = "Bulk";  in get_transport()
670 		us->transport = usb_stor_Bulk_transport;  in get_transport()
671 		us->transport_reset = usb_stor_Bulk_reset;  in get_transport()
677 static void get_protocol(struct us_data *us)  in get_protocol()  argument
679 	switch (us->subclass) {  in get_protocol()
681 		us->protocol_name = "Reduced Block Commands (RBC)";  in get_protocol()
682 		us->proto_handler = usb_stor_transparent_scsi_command;  in get_protocol()
686 		us->protocol_name = "8020i";  in get_protocol()
687 		us->proto_handler = usb_stor_pad12_command;  in get_protocol()
688 		us->max_lun = 0;  in get_protocol()
692 		us->protocol_name = "QIC-157";  in get_protocol()
693 		us->proto_handler = usb_stor_pad12_command;  in get_protocol()
694 		us->max_lun = 0;  in get_protocol()
698 		us->protocol_name = "8070i";  in get_protocol()
699 		us->proto_handler = usb_stor_pad12_command;  in get_protocol()
700 		us->max_lun = 0;  in get_protocol()
704 		us->protocol_name = "Transparent SCSI";  in get_protocol()
705 		us->proto_handler = usb_stor_transparent_scsi_command;  in get_protocol()
709 		us->protocol_name = "Uniform Floppy Interface (UFI)";  in get_protocol()
710 		us->proto_handler = usb_stor_ufi_command;  in get_protocol()
716 static int get_pipes(struct us_data *us)  in get_pipes()  argument
719 		us->pusb_intf->cur_altsetting;  in get_pipes()
751 	if (!ep_in || !ep_out || (us->protocol == USB_PR_CBI && !ep_int)) {  in get_pipes()
752 		usb_stor_dbg(us, "Endpoint sanity check failed! Rejecting dev.\n");  in get_pipes()
757 	us->send_ctrl_pipe = usb_sndctrlpipe(us->pusb_dev, 0);  in get_pipes()
758 	us->recv_ctrl_pipe = usb_rcvctrlpipe(us->pusb_dev, 0);  in get_pipes()
759 	us->send_bulk_pipe = usb_sndbulkpipe(us->pusb_dev,  in get_pipes()
761 	us->recv_bulk_pipe = usb_rcvbulkpipe(us->pusb_dev,  in get_pipes()
764 		us->recv_intr_pipe = usb_rcvintpipe(us->pusb_dev,  in get_pipes()
766 		us->ep_bInterval = ep_int->bInterval;  in get_pipes()
772 static int usb_stor_acquire_resources(struct us_data *us)  in usb_stor_acquire_resources()  argument
777 	us->current_urb = usb_alloc_urb(0, GFP_KERNEL);  in usb_stor_acquire_resources()
778 	if (!us->current_urb) {  in usb_stor_acquire_resources()
779 		usb_stor_dbg(us, "URB allocation failed\n");  in usb_stor_acquire_resources()
785 	if (us->unusual_dev->initFunction) {  in usb_stor_acquire_resources()
786 		p = us->unusual_dev->initFunction(us);  in usb_stor_acquire_resources()
792 	th = kthread_run(usb_stor_control_thread, us, "usb-storage");  in usb_stor_acquire_resources()
794 		dev_warn(&us->pusb_intf->dev,  in usb_stor_acquire_resources()
798 	us->ctl_thread = th;  in usb_stor_acquire_resources()
804 static void usb_stor_release_resources(struct us_data *us)  in usb_stor_release_resources()  argument
810 	usb_stor_dbg(us, "-- sending exit command to thread\n");  in usb_stor_release_resources()
811 	complete(&us->cmnd_ready);  in usb_stor_release_resources()
812 	if (us->ctl_thread)  in usb_stor_release_resources()
813 		kthread_stop(us->ctl_thread);  in usb_stor_release_resources()
816 	if (us->extra_destructor) {  in usb_stor_release_resources()
817 		usb_stor_dbg(us, "-- calling extra_destructor()\n");  in usb_stor_release_resources()
818 		us->extra_destructor(us->extra);  in usb_stor_release_resources()
822 	kfree(us->extra);  in usb_stor_release_resources()
823 	usb_free_urb(us->current_urb);  in usb_stor_release_resources()
827 static void dissociate_dev(struct us_data *us)  in dissociate_dev()  argument
830 	kfree(us->cr);  in dissociate_dev()
831 	usb_free_coherent(us->pusb_dev, US_IOBUF_SIZE, us->iobuf, us->iobuf_dma);  in dissociate_dev()
834 	usb_set_intfdata(us->pusb_intf, NULL);  in dissociate_dev()
840 static void quiesce_and_remove_host(struct us_data *us)  in quiesce_and_remove_host()  argument
842 	struct Scsi_Host *host = us_to_host(us);  in quiesce_and_remove_host()
845 	if (us->pusb_dev->state == USB_STATE_NOTATTACHED) {  in quiesce_and_remove_host()
846 		set_bit(US_FLIDX_DISCONNECTING, &us->dflags);  in quiesce_and_remove_host()
847 		wake_up(&us->delay_wait);  in quiesce_and_remove_host()
853 	cancel_delayed_work_sync(&us->scan_dwork);  in quiesce_and_remove_host()
856 	if (test_bit(US_FLIDX_SCAN_PENDING, &us->dflags))  in quiesce_and_remove_host()
857 		usb_autopm_put_interface_no_suspend(us->pusb_intf);  in quiesce_and_remove_host()
868 	set_bit(US_FLIDX_DISCONNECTING, &us->dflags);  in quiesce_and_remove_host()
870 	wake_up(&us->delay_wait);  in quiesce_and_remove_host()
874 static void release_everything(struct us_data *us)  in release_everything()  argument
876 	usb_stor_release_resources(us);  in release_everything()
877 	dissociate_dev(us);  in release_everything()
881 	scsi_host_put(us_to_host(us));  in release_everything()
887 	struct us_data *us = container_of(work, struct us_data,  in usb_stor_scan_dwork()  local
889 	struct device *dev = &us->pusb_intf->dev;  in usb_stor_scan_dwork()
894 	if (us->protocol == USB_PR_BULK &&  in usb_stor_scan_dwork()
895 	    !(us->fflags & US_FL_SINGLE_LUN) &&  in usb_stor_scan_dwork()
896 	    !(us->fflags & US_FL_SCM_MULT_TARG)) {  in usb_stor_scan_dwork()
897 		mutex_lock(&us->dev_mutex);  in usb_stor_scan_dwork()
898 		us->max_lun = usb_stor_Bulk_max_lun(us);  in usb_stor_scan_dwork()
903 		if (us->max_lun >= 8)  in usb_stor_scan_dwork()
904 			us_to_host(us)->max_lun = us->max_lun+1;  in usb_stor_scan_dwork()
905 		mutex_unlock(&us->dev_mutex);  in usb_stor_scan_dwork()
907 	scsi_scan_host(us_to_host(us));  in usb_stor_scan_dwork()
912 	usb_autopm_put_interface(us->pusb_intf);  in usb_stor_scan_dwork()
913 	clear_bit(US_FLIDX_SCAN_PENDING, &us->dflags);  in usb_stor_scan_dwork()
933 	struct us_data *us;  in usb_stor_probe1()  local
942 	host = scsi_host_alloc(&usb_stor_host_template, sizeof(*us));  in usb_stor_probe1()
953 	*pus = us = host_to_us(host);  in usb_stor_probe1()
954 	mutex_init(&(us->dev_mutex));  in usb_stor_probe1()
955 	us_set_lock_class(&us->dev_mutex, intf);  in usb_stor_probe1()
956 	init_completion(&us->cmnd_ready);  in usb_stor_probe1()
957 	init_completion(&(us->notify));  in usb_stor_probe1()
958 	init_waitqueue_head(&us->delay_wait);  in usb_stor_probe1()
959 	INIT_DELAYED_WORK(&us->scan_dwork, usb_stor_scan_dwork);  in usb_stor_probe1()
962 	result = associate_dev(us, intf);  in usb_stor_probe1()
967 	result = get_device_info(us, id, unusual_dev);  in usb_stor_probe1()
972 	get_transport(us);  in usb_stor_probe1()
973 	get_protocol(us);  in usb_stor_probe1()
981 	usb_stor_dbg(us, "storage_probe() failed\n");  in usb_stor_probe1()
982 	release_everything(us);  in usb_stor_probe1()
988 int usb_stor_probe2(struct us_data *us)  in usb_stor_probe2()  argument
991 	struct device *dev = &us->pusb_intf->dev;  in usb_stor_probe2()
994 	if (!us->transport || !us->proto_handler) {  in usb_stor_probe2()
998 	usb_stor_dbg(us, "Transport: %s\n", us->transport_name);  in usb_stor_probe2()
999 	usb_stor_dbg(us, "Protocol: %s\n", us->protocol_name);  in usb_stor_probe2()
1001 	if (us->fflags & US_FL_SCM_MULT_TARG) {  in usb_stor_probe2()
1006 		us->max_lun = 7;  in usb_stor_probe2()
1008 		us_to_host(us)->this_id = 7;  in usb_stor_probe2()
1012 		us_to_host(us)->max_id = 1;  in usb_stor_probe2()
1018 		if (us->transport == usb_stor_Bulk_transport)  in usb_stor_probe2()
1019 			us_to_host(us)->no_scsi2_lun_in_cdb = 1;  in usb_stor_probe2()
1023 	if (us->fflags & US_FL_SINGLE_LUN)  in usb_stor_probe2()
1024 		us->max_lun = 0;  in usb_stor_probe2()
1027 	result = get_pipes(us);  in usb_stor_probe2()
1035 	if (us->fflags & US_FL_INITIAL_READ10)  in usb_stor_probe2()
1036 		set_bit(US_FLIDX_REDO_READ10, &us->dflags);  in usb_stor_probe2()
1039 	result = usb_stor_acquire_resources(us);  in usb_stor_probe2()
1042 	snprintf(us->scsi_name, sizeof(us->scsi_name), "usb-storage %s",  in usb_stor_probe2()
1043 					dev_name(&us->pusb_intf->dev));  in usb_stor_probe2()
1044 	result = scsi_add_host(us_to_host(us), dev);  in usb_stor_probe2()
1052 	usb_autopm_get_interface_no_resume(us->pusb_intf);  in usb_stor_probe2()
1053 	set_bit(US_FLIDX_SCAN_PENDING, &us->dflags);  in usb_stor_probe2()
1057 	queue_delayed_work(system_freezable_wq, &us->scan_dwork,  in usb_stor_probe2()
1063 	usb_stor_dbg(us, "storage_probe() failed\n");  in usb_stor_probe2()
1064 	release_everything(us);  in usb_stor_probe2()
1072 	struct us_data *us = usb_get_intfdata(intf);  in usb_stor_disconnect()  local
1074 	quiesce_and_remove_host(us);  in usb_stor_disconnect()
1075 	release_everything(us);  in usb_stor_disconnect()
1084 	struct us_data *us;  in storage_probe()  local
1119 	result = usb_stor_probe1(&us, intf, id, unusual_dev);  in storage_probe()
1125 	result = usb_stor_probe2(us);  in storage_probe()