186 	struct us_data *us = usb_get_intfdata(iface);  in usb_stor_suspend()  local
189 	mutex_lock(&us->dev_mutex);  in usb_stor_suspend()
191 	if (us->suspend_resume_hook)  in usb_stor_suspend()
192 		(us->suspend_resume_hook)(us, US_SUSPEND);  in usb_stor_suspend()
197 	mutex_unlock(&us->dev_mutex);  in usb_stor_suspend()
204 	struct us_data *us = usb_get_intfdata(iface);  in usb_stor_resume()  local
206 	mutex_lock(&us->dev_mutex);  in usb_stor_resume()
208 	if (us->suspend_resume_hook)  in usb_stor_resume()
209 		(us->suspend_resume_hook)(us, US_RESUME);  in usb_stor_resume()
211 	mutex_unlock(&us->dev_mutex);  in usb_stor_resume()
218 	struct us_data *us = usb_get_intfdata(iface);  in usb_stor_reset_resume()  local
221 	usb_stor_report_bus_reset(us);  in usb_stor_reset_resume()
238 	struct us_data *us = usb_get_intfdata(iface);  in usb_stor_pre_reset()  local
241 	mutex_lock(&us->dev_mutex);  in usb_stor_pre_reset()
248 	struct us_data *us = usb_get_intfdata(iface);  in usb_stor_post_reset()  local
251 	usb_stor_report_bus_reset(us);  in usb_stor_post_reset()
256 	mutex_unlock(&us->dev_mutex);  in usb_stor_post_reset()
270 void fill_inquiry_response(struct us_data *us, unsigned char *data,  in fill_inquiry_response()  argument
287 		u16 bcdDevice = le16_to_cpu(us->pusb_dev->descriptor.bcdDevice);  in fill_inquiry_response()
290 		n = strlen(us->unusual_dev->vendorName);  in fill_inquiry_response()
291 		memcpy(data+8, us->unusual_dev->vendorName, min(8, n));  in fill_inquiry_response()
292 		n = strlen(us->unusual_dev->productName);  in fill_inquiry_response()
293 		memcpy(data+16, us->unusual_dev->productName, min(16, n));  in fill_inquiry_response()
301 	usb_stor_set_xfer_buf(data, data_len, us->srb);  in fill_inquiry_response()
307 	struct us_data *us = (struct us_data *)__us;  in usb_stor_control_thread()  local
308 	struct Scsi_Host *host = us_to_host(us);  in usb_stor_control_thread()
311 		usb_stor_dbg(us, "*** thread sleeping\n");  in usb_stor_control_thread()
312 		if (wait_for_completion_interruptible(&us->cmnd_ready))  in usb_stor_control_thread()
315 		usb_stor_dbg(us, "*** thread awakened\n");  in usb_stor_control_thread()
318 		mutex_lock(&(us->dev_mutex));  in usb_stor_control_thread()
324 		if (us->srb == NULL) {  in usb_stor_control_thread()
326 			mutex_unlock(&us->dev_mutex);  in usb_stor_control_thread()
327 			usb_stor_dbg(us, "-- exiting\n");  in usb_stor_control_thread()
332 		if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) {  in usb_stor_control_thread()
333 			us->srb->result = DID_ABORT << 16;  in usb_stor_control_thread()
342 		if (us->srb->sc_data_direction == DMA_BIDIRECTIONAL) {  in usb_stor_control_thread()
343 			usb_stor_dbg(us, "UNKNOWN data direction\n");  in usb_stor_control_thread()
344 			us->srb->result = DID_ERROR << 16;  in usb_stor_control_thread()
350 		else if (us->srb->device->id &&  in usb_stor_control_thread()
351 				!(us->fflags & US_FL_SCM_MULT_TARG)) {  in usb_stor_control_thread()
352 			usb_stor_dbg(us, "Bad target number (%d:%llu)\n",  in usb_stor_control_thread()
353 				     us->srb->device->id,  in usb_stor_control_thread()
354 				     us->srb->device->lun);  in usb_stor_control_thread()
355 			us->srb->result = DID_BAD_TARGET << 16;  in usb_stor_control_thread()
358 		else if (us->srb->device->lun > us->max_lun) {  in usb_stor_control_thread()
359 			usb_stor_dbg(us, "Bad LUN (%d:%llu)\n",  in usb_stor_control_thread()
360 				     us->srb->device->id,  in usb_stor_control_thread()
361 				     us->srb->device->lun);  in usb_stor_control_thread()
362 			us->srb->result = DID_BAD_TARGET << 16;  in usb_stor_control_thread()
367 		else if ((us->srb->cmnd[0] == INQUIRY) &&  in usb_stor_control_thread()
368 			    (us->fflags & US_FL_FIX_INQUIRY)) {  in usb_stor_control_thread()
373 			usb_stor_dbg(us, "Faking INQUIRY command\n");  in usb_stor_control_thread()
374 			fill_inquiry_response(us, data_ptr, 36);  in usb_stor_control_thread()
375 			us->srb->result = SAM_STAT_GOOD;  in usb_stor_control_thread()
380 			US_DEBUG(usb_stor_show_command(us, us->srb));  in usb_stor_control_thread()
381 			us->proto_handler(us->srb, us);  in usb_stor_control_thread()
382 			usb_mark_last_busy(us->pusb_dev);  in usb_stor_control_thread()
389 		if (us->srb->result != DID_ABORT << 16) {  in usb_stor_control_thread()
390 			usb_stor_dbg(us, "scsi cmd done, result=0x%x\n",  in usb_stor_control_thread()
391 				     us->srb->result);  in usb_stor_control_thread()
392 			us->srb->scsi_done(us->srb);  in usb_stor_control_thread()
395 			usb_stor_dbg(us, "scsi command aborted\n");  in usb_stor_control_thread()
403 		if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) {  in usb_stor_control_thread()
404 			complete(&(us->notify));  in usb_stor_control_thread()
407 			clear_bit(US_FLIDX_ABORTING, &us->dflags);  in usb_stor_control_thread()
408 			clear_bit(US_FLIDX_TIMED_OUT, &us->dflags);  in usb_stor_control_thread()
412 		us->srb = NULL;  in usb_stor_control_thread()
416 		mutex_unlock(&us->dev_mutex);  in usb_stor_control_thread()
435 static int associate_dev(struct us_data *us, struct usb_interface *intf)  in associate_dev()  argument
438 	us->pusb_dev = interface_to_usbdev(intf);  in associate_dev()
439 	us->pusb_intf = intf;  in associate_dev()
440 	us->ifnum = intf->cur_altsetting->desc.bInterfaceNumber;  in associate_dev()
441 	usb_stor_dbg(us, "Vendor: 0x%04x, Product: 0x%04x, Revision: 0x%04x\n",  in associate_dev()
442 		     le16_to_cpu(us->pusb_dev->descriptor.idVendor),  in associate_dev()
443 		     le16_to_cpu(us->pusb_dev->descriptor.idProduct),  in associate_dev()
444 		     le16_to_cpu(us->pusb_dev->descriptor.bcdDevice));  in associate_dev()
445 	usb_stor_dbg(us, "Interface Subclass: 0x%02x, Protocol: 0x%02x\n",  in associate_dev()
450 	usb_set_intfdata(intf, us);  in associate_dev()
453 	us->cr = kmalloc(sizeof(*us->cr), GFP_KERNEL);  in associate_dev()
454 	if (!us->cr)  in associate_dev()
457 	us->iobuf = usb_alloc_coherent(us->pusb_dev, US_IOBUF_SIZE,  in associate_dev()
458 			GFP_KERNEL, &us->iobuf_dma);  in associate_dev()
459 	if (!us->iobuf) {  in associate_dev()
460 		usb_stor_dbg(us, "I/O buffer allocation failed\n");  in associate_dev()
576 static int get_device_info(struct us_data *us, const struct usb_device_id *id,  in get_device_info()  argument
579 	struct usb_device *dev = us->pusb_dev;  in get_device_info()
581 		&us->pusb_intf->cur_altsetting->desc;  in get_device_info()
582 	struct device *pdev = &us->pusb_intf->dev;  in get_device_info()
585 	us->unusual_dev = unusual_dev;  in get_device_info()
586 	us->subclass = (unusual_dev->useProtocol == USB_SC_DEVICE) ?  in get_device_info()
589 	us->protocol = (unusual_dev->useTransport == USB_PR_DEVICE) ?  in get_device_info()
592 	us->fflags = id->driver_info;  in get_device_info()
593 	usb_stor_adjust_quirks(us->pusb_dev, &us->fflags);  in get_device_info()
595 	if (us->fflags & US_FL_IGNORE_DEVICE) {  in get_device_info()
605 		us->fflags &= ~US_FL_GO_SLOW;  in get_device_info()
607 	if (us->fflags)  in get_device_info()
611 				us->fflags);  in get_device_info()
627 			us->subclass == idesc->bInterfaceSubClass)  in get_device_info()
630 			us->protocol == idesc->bInterfaceProtocol)  in get_device_info()
632 		if (msg >= 0 && !(us->fflags & US_FL_NEED_OVERRIDE))  in get_device_info()
653 static void get_transport(struct us_data *us)  in get_transport()  argument
655 	switch (us->protocol) {  in get_transport()
657 		us->transport_name = "Control/Bulk";  in get_transport()
658 		us->transport = usb_stor_CB_transport;  in get_transport()
659 		us->transport_reset = usb_stor_CB_reset;  in get_transport()
660 		us->max_lun = 7;  in get_transport()
664 		us->transport_name = "Control/Bulk/Interrupt";  in get_transport()
665 		us->transport = usb_stor_CB_transport;  in get_transport()
666 		us->transport_reset = usb_stor_CB_reset;  in get_transport()
667 		us->max_lun = 7;  in get_transport()
671 		us->transport_name = "Bulk";  in get_transport()
672 		us->transport = usb_stor_Bulk_transport;  in get_transport()
673 		us->transport_reset = usb_stor_Bulk_reset;  in get_transport()
679 static void get_protocol(struct us_data *us)  in get_protocol()  argument
681 	switch (us->subclass) {  in get_protocol()
683 		us->protocol_name = "Reduced Block Commands (RBC)";  in get_protocol()
684 		us->proto_handler = usb_stor_transparent_scsi_command;  in get_protocol()
688 		us->protocol_name = "8020i";  in get_protocol()
689 		us->proto_handler = usb_stor_pad12_command;  in get_protocol()
690 		us->max_lun = 0;  in get_protocol()
694 		us->protocol_name = "QIC-157";  in get_protocol()
695 		us->proto_handler = usb_stor_pad12_command;  in get_protocol()
696 		us->max_lun = 0;  in get_protocol()
700 		us->protocol_name = "8070i";  in get_protocol()
701 		us->proto_handler = usb_stor_pad12_command;  in get_protocol()
702 		us->max_lun = 0;  in get_protocol()
706 		us->protocol_name = "Transparent SCSI";  in get_protocol()
707 		us->proto_handler = usb_stor_transparent_scsi_command;  in get_protocol()
711 		us->protocol_name = "Uniform Floppy Interface (UFI)";  in get_protocol()
712 		us->proto_handler = usb_stor_ufi_command;  in get_protocol()
718 static int get_pipes(struct us_data *us)  in get_pipes()  argument
721 		us->pusb_intf->cur_altsetting;  in get_pipes()
753 	if (!ep_in || !ep_out || (us->protocol == USB_PR_CBI && !ep_int)) {  in get_pipes()
754 		usb_stor_dbg(us, "Endpoint sanity check failed! Rejecting dev.\n");  in get_pipes()
759 	us->send_ctrl_pipe = usb_sndctrlpipe(us->pusb_dev, 0);  in get_pipes()
760 	us->recv_ctrl_pipe = usb_rcvctrlpipe(us->pusb_dev, 0);  in get_pipes()
761 	us->send_bulk_pipe = usb_sndbulkpipe(us->pusb_dev,  in get_pipes()
763 	us->recv_bulk_pipe = usb_rcvbulkpipe(us->pusb_dev,  in get_pipes()
766 		us->recv_intr_pipe = usb_rcvintpipe(us->pusb_dev,  in get_pipes()
768 		us->ep_bInterval = ep_int->bInterval;  in get_pipes()
774 static int usb_stor_acquire_resources(struct us_data *us)  in usb_stor_acquire_resources()  argument
779 	us->current_urb = usb_alloc_urb(0, GFP_KERNEL);  in usb_stor_acquire_resources()
780 	if (!us->current_urb) {  in usb_stor_acquire_resources()
781 		usb_stor_dbg(us, "URB allocation failed\n");  in usb_stor_acquire_resources()
787 	if (us->unusual_dev->initFunction) {  in usb_stor_acquire_resources()
788 		p = us->unusual_dev->initFunction(us);  in usb_stor_acquire_resources()
794 	th = kthread_run(usb_stor_control_thread, us, "usb-storage");  in usb_stor_acquire_resources()
796 		dev_warn(&us->pusb_intf->dev,  in usb_stor_acquire_resources()
800 	us->ctl_thread = th;  in usb_stor_acquire_resources()
806 static void usb_stor_release_resources(struct us_data *us)  in usb_stor_release_resources()  argument
812 	usb_stor_dbg(us, "-- sending exit command to thread\n");  in usb_stor_release_resources()
813 	complete(&us->cmnd_ready);  in usb_stor_release_resources()
814 	if (us->ctl_thread)  in usb_stor_release_resources()
815 		kthread_stop(us->ctl_thread);  in usb_stor_release_resources()
818 	if (us->extra_destructor) {  in usb_stor_release_resources()
819 		usb_stor_dbg(us, "-- calling extra_destructor()\n");  in usb_stor_release_resources()
820 		us->extra_destructor(us->extra);  in usb_stor_release_resources()
824 	kfree(us->extra);  in usb_stor_release_resources()
825 	usb_free_urb(us->current_urb);  in usb_stor_release_resources()
829 static void dissociate_dev(struct us_data *us)  in dissociate_dev()  argument
832 	kfree(us->cr);  in dissociate_dev()
833 	usb_free_coherent(us->pusb_dev, US_IOBUF_SIZE, us->iobuf, us->iobuf_dma);  in dissociate_dev()
836 	usb_set_intfdata(us->pusb_intf, NULL);  in dissociate_dev()
842 static void quiesce_and_remove_host(struct us_data *us)  in quiesce_and_remove_host()  argument
844 	struct Scsi_Host *host = us_to_host(us);  in quiesce_and_remove_host()
847 	if (us->pusb_dev->state == USB_STATE_NOTATTACHED) {  in quiesce_and_remove_host()
848 		set_bit(US_FLIDX_DISCONNECTING, &us->dflags);  in quiesce_and_remove_host()
849 		wake_up(&us->delay_wait);  in quiesce_and_remove_host()
855 	cancel_delayed_work_sync(&us->scan_dwork);  in quiesce_and_remove_host()
858 	if (test_bit(US_FLIDX_SCAN_PENDING, &us->dflags))  in quiesce_and_remove_host()
859 		usb_autopm_put_interface_no_suspend(us->pusb_intf);  in quiesce_and_remove_host()
870 	set_bit(US_FLIDX_DISCONNECTING, &us->dflags);  in quiesce_and_remove_host()
872 	wake_up(&us->delay_wait);  in quiesce_and_remove_host()
876 static void release_everything(struct us_data *us)  in release_everything()  argument
878 	usb_stor_release_resources(us);  in release_everything()
879 	dissociate_dev(us);  in release_everything()
883 	scsi_host_put(us_to_host(us));  in release_everything()
889 	struct us_data *us = container_of(work, struct us_data,  in usb_stor_scan_dwork()  local
891 	struct device *dev = &us->pusb_intf->dev;  in usb_stor_scan_dwork()
896 	if (us->protocol == USB_PR_BULK &&  in usb_stor_scan_dwork()
897 	    !(us->fflags & US_FL_SINGLE_LUN) &&  in usb_stor_scan_dwork()
898 	    !(us->fflags & US_FL_SCM_MULT_TARG)) {  in usb_stor_scan_dwork()
899 		mutex_lock(&us->dev_mutex);  in usb_stor_scan_dwork()
900 		us->max_lun = usb_stor_Bulk_max_lun(us);  in usb_stor_scan_dwork()
905 		if (us->max_lun >= 8)  in usb_stor_scan_dwork()
906 			us_to_host(us)->max_lun = us->max_lun+1;  in usb_stor_scan_dwork()
907 		mutex_unlock(&us->dev_mutex);  in usb_stor_scan_dwork()
909 	scsi_scan_host(us_to_host(us));  in usb_stor_scan_dwork()
914 	usb_autopm_put_interface(us->pusb_intf);  in usb_stor_scan_dwork()
915 	clear_bit(US_FLIDX_SCAN_PENDING, &us->dflags);  in usb_stor_scan_dwork()
936 	struct us_data *us;  in usb_stor_probe1()  local
945 	host = scsi_host_alloc(sht, sizeof(*us));  in usb_stor_probe1()
956 	*pus = us = host_to_us(host);  in usb_stor_probe1()
957 	mutex_init(&(us->dev_mutex));  in usb_stor_probe1()
958 	us_set_lock_class(&us->dev_mutex, intf);  in usb_stor_probe1()
959 	init_completion(&us->cmnd_ready);  in usb_stor_probe1()
960 	init_completion(&(us->notify));  in usb_stor_probe1()
961 	init_waitqueue_head(&us->delay_wait);  in usb_stor_probe1()
962 	INIT_DELAYED_WORK(&us->scan_dwork, usb_stor_scan_dwork);  in usb_stor_probe1()
965 	result = associate_dev(us, intf);  in usb_stor_probe1()
970 	result = get_device_info(us, id, unusual_dev);  in usb_stor_probe1()
975 	get_transport(us);  in usb_stor_probe1()
976 	get_protocol(us);  in usb_stor_probe1()
984 	usb_stor_dbg(us, "storage_probe() failed\n");  in usb_stor_probe1()
985 	release_everything(us);  in usb_stor_probe1()
991 int usb_stor_probe2(struct us_data *us)  in usb_stor_probe2()  argument
994 	struct device *dev = &us->pusb_intf->dev;  in usb_stor_probe2()
997 	if (!us->transport || !us->proto_handler) {  in usb_stor_probe2()
1001 	usb_stor_dbg(us, "Transport: %s\n", us->transport_name);  in usb_stor_probe2()
1002 	usb_stor_dbg(us, "Protocol: %s\n", us->protocol_name);  in usb_stor_probe2()
1004 	if (us->fflags & US_FL_SCM_MULT_TARG) {  in usb_stor_probe2()
1009 		us->max_lun = 7;  in usb_stor_probe2()
1011 		us_to_host(us)->this_id = 7;  in usb_stor_probe2()
1015 		us_to_host(us)->max_id = 1;  in usb_stor_probe2()
1021 		if (us->transport == usb_stor_Bulk_transport)  in usb_stor_probe2()
1022 			us_to_host(us)->no_scsi2_lun_in_cdb = 1;  in usb_stor_probe2()
1026 	if (us->fflags & US_FL_SINGLE_LUN)  in usb_stor_probe2()
1027 		us->max_lun = 0;  in usb_stor_probe2()
1030 	result = get_pipes(us);  in usb_stor_probe2()
1038 	if (us->fflags & US_FL_INITIAL_READ10)  in usb_stor_probe2()
1039 		set_bit(US_FLIDX_REDO_READ10, &us->dflags);  in usb_stor_probe2()
1042 	result = usb_stor_acquire_resources(us);  in usb_stor_probe2()
1045 	snprintf(us->scsi_name, sizeof(us->scsi_name), "usb-storage %s",  in usb_stor_probe2()
1046 					dev_name(&us->pusb_intf->dev));  in usb_stor_probe2()
1047 	result = scsi_add_host(us_to_host(us), dev);  in usb_stor_probe2()
1055 	usb_autopm_get_interface_no_resume(us->pusb_intf);  in usb_stor_probe2()
1056 	set_bit(US_FLIDX_SCAN_PENDING, &us->dflags);  in usb_stor_probe2()
1060 	queue_delayed_work(system_freezable_wq, &us->scan_dwork,  in usb_stor_probe2()
1066 	usb_stor_dbg(us, "storage_probe() failed\n");  in usb_stor_probe2()
1067 	release_everything(us);  in usb_stor_probe2()
1075 	struct us_data *us = usb_get_intfdata(intf);  in usb_stor_disconnect()  local
1077 	quiesce_and_remove_host(us);  in usb_stor_disconnect()
1078 	release_everything(us);  in usb_stor_disconnect()
1089 	struct us_data *us;  in storage_probe()  local
1124 	result = usb_stor_probe1(&us, intf, id, unusual_dev,  in storage_probe()
1131 	result = usb_stor_probe2(us);  in storage_probe()