171 	struct us_data *us = usb_get_intfdata(iface);  in usb_stor_suspend()  local
174 	mutex_lock(&us->dev_mutex);  in usb_stor_suspend()
176 	if (us->suspend_resume_hook)  in usb_stor_suspend()
177 		(us->suspend_resume_hook)(us, US_SUSPEND);  in usb_stor_suspend()
184 	mutex_unlock(&us->dev_mutex);  in usb_stor_suspend()
191 	struct us_data *us = usb_get_intfdata(iface);  in usb_stor_resume()  local
193 	mutex_lock(&us->dev_mutex);  in usb_stor_resume()
195 	if (us->suspend_resume_hook)  in usb_stor_resume()
196 		(us->suspend_resume_hook)(us, US_RESUME);  in usb_stor_resume()
198 	mutex_unlock(&us->dev_mutex);  in usb_stor_resume()
205 	struct us_data *us = usb_get_intfdata(iface);  in usb_stor_reset_resume()  local
208 	usb_stor_report_bus_reset(us);  in usb_stor_reset_resume()
227 	struct us_data *us = usb_get_intfdata(iface);  in usb_stor_pre_reset()  local
230 	mutex_lock(&us->dev_mutex);  in usb_stor_pre_reset()
237 	struct us_data *us = usb_get_intfdata(iface);  in usb_stor_post_reset()  local
240 	usb_stor_report_bus_reset(us);  in usb_stor_post_reset()
247 	mutex_unlock(&us->dev_mutex);  in usb_stor_post_reset()
261 void fill_inquiry_response(struct us_data *us, unsigned char *data,  in fill_inquiry_response()  argument
280 		u16 bcdDevice = le16_to_cpu(us->pusb_dev->descriptor.bcdDevice);  in fill_inquiry_response()
283 		n = strlen(us->unusual_dev->vendorName);  in fill_inquiry_response()
284 		memcpy(data+8, us->unusual_dev->vendorName, min(8, n));  in fill_inquiry_response()
285 		n = strlen(us->unusual_dev->productName);  in fill_inquiry_response()
286 		memcpy(data+16, us->unusual_dev->productName, min(16, n));  in fill_inquiry_response()
294 	usb_stor_set_xfer_buf(data, data_len, us->srb);  in fill_inquiry_response()
300 	struct us_data *us = (struct us_data *)__us;  in usb_stor_control_thread()  local
301 	struct Scsi_Host *host = us_to_host(us);  in usb_stor_control_thread()
305 		usb_stor_dbg(us, "*** thread sleeping\n");  in usb_stor_control_thread()
306 		if (wait_for_completion_interruptible(&us->cmnd_ready))  in usb_stor_control_thread()
309 		usb_stor_dbg(us, "*** thread awakened\n");  in usb_stor_control_thread()
312 		mutex_lock(&(us->dev_mutex));  in usb_stor_control_thread()
318 		srb = us->srb;  in usb_stor_control_thread()
321 			mutex_unlock(&us->dev_mutex);  in usb_stor_control_thread()
322 			usb_stor_dbg(us, "-- exiting\n");  in usb_stor_control_thread()
327 		if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) {  in usb_stor_control_thread()
339 			usb_stor_dbg(us, "UNKNOWN data direction\n");  in usb_stor_control_thread()
348 				!(us->fflags & US_FL_SCM_MULT_TARG)) {  in usb_stor_control_thread()
349 			usb_stor_dbg(us, "Bad target number (%d:%llu)\n",  in usb_stor_control_thread()
355 		else if (srb->device->lun > us->max_lun) {  in usb_stor_control_thread()
356 			usb_stor_dbg(us, "Bad LUN (%d:%llu)\n",  in usb_stor_control_thread()
363 		 * Handle those devices which need us to fake  in usb_stor_control_thread()
367 			    (us->fflags & US_FL_FIX_INQUIRY)) {  in usb_stor_control_thread()
372 			usb_stor_dbg(us, "Faking INQUIRY command\n");  in usb_stor_control_thread()
373 			fill_inquiry_response(us, data_ptr, 36);  in usb_stor_control_thread()
379 			US_DEBUG(usb_stor_show_command(us, srb));  in usb_stor_control_thread()
380 			us->proto_handler(srb, us);  in usb_stor_control_thread()
381 			usb_mark_last_busy(us->pusb_dev);  in usb_stor_control_thread()
390 			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()
418 			usb_stor_dbg(us, "scsi cmd done, result=0x%x\n",  in usb_stor_control_thread()
440 static int associate_dev(struct us_data *us, struct usb_interface *intf)  in associate_dev()  argument
443 	us->pusb_dev = interface_to_usbdev(intf);  in associate_dev()
444 	us->pusb_intf = intf;  in associate_dev()
445 	us->ifnum = intf->cur_altsetting->desc.bInterfaceNumber;  in associate_dev()
446 	usb_stor_dbg(us, "Vendor: 0x%04x, Product: 0x%04x, Revision: 0x%04x\n",  in associate_dev()
447 		     le16_to_cpu(us->pusb_dev->descriptor.idVendor),  in associate_dev()
448 		     le16_to_cpu(us->pusb_dev->descriptor.idProduct),  in associate_dev()
449 		     le16_to_cpu(us->pusb_dev->descriptor.bcdDevice));  in associate_dev()
450 	usb_stor_dbg(us, "Interface Subclass: 0x%02x, Protocol: 0x%02x\n",  in associate_dev()
455 	usb_set_intfdata(intf, us);  in associate_dev()
458 	us->cr = kmalloc(sizeof(*us->cr), GFP_KERNEL);  in associate_dev()
459 	if (!us->cr)  in associate_dev()
462 	us->iobuf = usb_alloc_coherent(us->pusb_dev, US_IOBUF_SIZE,  in associate_dev()
463 			GFP_KERNEL, &us->iobuf_dma);  in associate_dev()
464 	if (!us->iobuf) {  in associate_dev()
465 		usb_stor_dbg(us, "I/O buffer allocation failed\n");  in associate_dev()
588 static int get_device_info(struct us_data *us, const struct usb_device_id *id,  in get_device_info()  argument
591 	struct usb_device *dev = us->pusb_dev;  in get_device_info()
593 		&us->pusb_intf->cur_altsetting->desc;  in get_device_info()
594 	struct device *pdev = &us->pusb_intf->dev;  in get_device_info()
597 	us->unusual_dev = unusual_dev;  in get_device_info()
598 	us->subclass = (unusual_dev->useProtocol == USB_SC_DEVICE) ?  in get_device_info()
601 	us->protocol = (unusual_dev->useTransport == USB_PR_DEVICE) ?  in get_device_info()
604 	us->fflags = id->driver_info;  in get_device_info()
605 	usb_stor_adjust_quirks(us->pusb_dev, &us->fflags);  in get_device_info()
607 	if (us->fflags & US_FL_IGNORE_DEVICE) {  in get_device_info()
617 		us->fflags &= ~US_FL_GO_SLOW;  in get_device_info()
619 	if (us->fflags)  in get_device_info()
623 				us->fflags);  in get_device_info()
628 	 * reports from users that will help us remove unneeded entries  in get_device_info()
640 			us->subclass == idesc->bInterfaceSubClass)  in get_device_info()
643 			us->protocol == idesc->bInterfaceProtocol)  in get_device_info()
645 		if (msg >= 0 && !(us->fflags & US_FL_NEED_OVERRIDE))  in get_device_info()
666 static void get_transport(struct us_data *us)  in get_transport()  argument
668 	switch (us->protocol) {  in get_transport()
670 		us->transport_name = "Control/Bulk";  in get_transport()
671 		us->transport = usb_stor_CB_transport;  in get_transport()
672 		us->transport_reset = usb_stor_CB_reset;  in get_transport()
673 		us->max_lun = 7;  in get_transport()
677 		us->transport_name = "Control/Bulk/Interrupt";  in get_transport()
678 		us->transport = usb_stor_CB_transport;  in get_transport()
679 		us->transport_reset = usb_stor_CB_reset;  in get_transport()
680 		us->max_lun = 7;  in get_transport()
684 		us->transport_name = "Bulk";  in get_transport()
685 		us->transport = usb_stor_Bulk_transport;  in get_transport()
686 		us->transport_reset = usb_stor_Bulk_reset;  in get_transport()
692 static void get_protocol(struct us_data *us)  in get_protocol()  argument
694 	switch (us->subclass) {  in get_protocol()
696 		us->protocol_name = "Reduced Block Commands (RBC)";  in get_protocol()
697 		us->proto_handler = usb_stor_transparent_scsi_command;  in get_protocol()
701 		us->protocol_name = "8020i";  in get_protocol()
702 		us->proto_handler = usb_stor_pad12_command;  in get_protocol()
703 		us->max_lun = 0;  in get_protocol()
707 		us->protocol_name = "QIC-157";  in get_protocol()
708 		us->proto_handler = usb_stor_pad12_command;  in get_protocol()
709 		us->max_lun = 0;  in get_protocol()
713 		us->protocol_name = "8070i";  in get_protocol()
714 		us->proto_handler = usb_stor_pad12_command;  in get_protocol()
715 		us->max_lun = 0;  in get_protocol()
719 		us->protocol_name = "Transparent SCSI";  in get_protocol()
720 		us->proto_handler = usb_stor_transparent_scsi_command;  in get_protocol()
724 		us->protocol_name = "Uniform Floppy Interface (UFI)";  in get_protocol()
725 		us->proto_handler = usb_stor_ufi_command;  in get_protocol()
731 static int get_pipes(struct us_data *us)  in get_pipes()  argument
733 	struct usb_host_interface *alt = us->pusb_intf->cur_altsetting;  in get_pipes()
747 		usb_stor_dbg(us, "bulk endpoints not found\n");  in get_pipes()
752 	if (res && us->protocol == USB_PR_CBI) {  in get_pipes()
753 		usb_stor_dbg(us, "interrupt endpoint not found\n");  in get_pipes()
758 	us->send_ctrl_pipe = usb_sndctrlpipe(us->pusb_dev, 0);  in get_pipes()
759 	us->recv_ctrl_pipe = usb_rcvctrlpipe(us->pusb_dev, 0);  in get_pipes()
760 	us->send_bulk_pipe = usb_sndbulkpipe(us->pusb_dev,  in get_pipes()
762 	us->recv_bulk_pipe = usb_rcvbulkpipe(us->pusb_dev,  in get_pipes()
765 		us->recv_intr_pipe = usb_rcvintpipe(us->pusb_dev,  in get_pipes()
767 		us->ep_bInterval = ep_int->bInterval;  in get_pipes()
773 static int usb_stor_acquire_resources(struct us_data *us)  in usb_stor_acquire_resources()  argument
778 	us->current_urb = usb_alloc_urb(0, GFP_KERNEL);  in usb_stor_acquire_resources()
779 	if (!us->current_urb)  in usb_stor_acquire_resources()
786 	if (us->unusual_dev->initFunction) {  in usb_stor_acquire_resources()
787 		p = us->unusual_dev->initFunction(us);  in usb_stor_acquire_resources()
793 	th = kthread_run(usb_stor_control_thread, us, "usb-storage");  in usb_stor_acquire_resources()
795 		dev_warn(&us->pusb_intf->dev,  in usb_stor_acquire_resources()
799 	us->ctl_thread = th;  in usb_stor_acquire_resources()
805 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()
843 static void quiesce_and_remove_host(struct us_data *us)  in quiesce_and_remove_host()  argument
845 	struct Scsi_Host *host = us_to_host(us);  in quiesce_and_remove_host()
848 	if (us->pusb_dev->state == USB_STATE_NOTATTACHED) {  in quiesce_and_remove_host()
849 		set_bit(US_FLIDX_DISCONNECTING, &us->dflags);  in quiesce_and_remove_host()
850 		wake_up(&us->delay_wait);  in quiesce_and_remove_host()
857 	cancel_delayed_work_sync(&us->scan_dwork);  in quiesce_and_remove_host()
860 	if (test_bit(US_FLIDX_SCAN_PENDING, &us->dflags))  in quiesce_and_remove_host()
861 		usb_autopm_put_interface_no_suspend(us->pusb_intf);  in quiesce_and_remove_host()
874 	set_bit(US_FLIDX_DISCONNECTING, &us->dflags);  in quiesce_and_remove_host()
876 	wake_up(&us->delay_wait);  in quiesce_and_remove_host()
880 static void release_everything(struct us_data *us)  in release_everything()  argument
882 	usb_stor_release_resources(us);  in release_everything()
883 	dissociate_dev(us);  in release_everything()
887 	 * (and "us" along with it) when the refcount becomes 0.  in release_everything()
889 	scsi_host_put(us_to_host(us));  in release_everything()
895 	struct us_data *us = container_of(work, struct us_data,  in usb_stor_scan_dwork()  local
897 	struct device *dev = &us->pusb_intf->dev;  in usb_stor_scan_dwork()
902 	if (us->protocol == USB_PR_BULK &&  in usb_stor_scan_dwork()
903 	    !(us->fflags & US_FL_SINGLE_LUN) &&  in usb_stor_scan_dwork()
904 	    !(us->fflags & US_FL_SCM_MULT_TARG)) {  in usb_stor_scan_dwork()
905 		mutex_lock(&us->dev_mutex);  in usb_stor_scan_dwork()
906 		us->max_lun = usb_stor_Bulk_max_lun(us);  in usb_stor_scan_dwork()
912 		if (us->max_lun >= 8)  in usb_stor_scan_dwork()
913 			us_to_host(us)->max_lun = us->max_lun+1;  in usb_stor_scan_dwork()
914 		mutex_unlock(&us->dev_mutex);  in usb_stor_scan_dwork()
916 	scsi_scan_host(us_to_host(us));  in usb_stor_scan_dwork()
921 	usb_autopm_put_interface(us->pusb_intf);  in usb_stor_scan_dwork()
922 	clear_bit(US_FLIDX_SCAN_PENDING, &us->dflags);  in usb_stor_scan_dwork()
943 	struct us_data *us;  in usb_stor_probe1()  local
952 	host = scsi_host_alloc(sht, sizeof(*us));  in usb_stor_probe1()
963 	*pus = us = host_to_us(host);  in usb_stor_probe1()
964 	mutex_init(&(us->dev_mutex));  in usb_stor_probe1()
965 	us_set_lock_class(&us->dev_mutex, intf);  in usb_stor_probe1()
966 	init_completion(&us->cmnd_ready);  in usb_stor_probe1()
967 	init_completion(&(us->notify));  in usb_stor_probe1()
968 	init_waitqueue_head(&us->delay_wait);  in usb_stor_probe1()
969 	INIT_DELAYED_WORK(&us->scan_dwork, usb_stor_scan_dwork);  in usb_stor_probe1()
972 	result = associate_dev(us, intf);  in usb_stor_probe1()
977 	result = get_device_info(us, id, unusual_dev);  in usb_stor_probe1()
982 	get_transport(us);  in usb_stor_probe1()
983 	get_protocol(us);  in usb_stor_probe1()
992 	usb_stor_dbg(us, "storage_probe() failed\n");  in usb_stor_probe1()
993 	release_everything(us);  in usb_stor_probe1()
999 int usb_stor_probe2(struct us_data *us)  in usb_stor_probe2()  argument
1002 	struct device *dev = &us->pusb_intf->dev;  in usb_stor_probe2()
1005 	if (!us->transport || !us->proto_handler) {  in usb_stor_probe2()
1009 	usb_stor_dbg(us, "Transport: %s\n", us->transport_name);  in usb_stor_probe2()
1010 	usb_stor_dbg(us, "Protocol: %s\n", us->protocol_name);  in usb_stor_probe2()
1012 	if (us->fflags & US_FL_SCM_MULT_TARG) {  in usb_stor_probe2()
1017 		us->max_lun = 7;  in usb_stor_probe2()
1019 		us_to_host(us)->this_id = 7;  in usb_stor_probe2()
1023 		us_to_host(us)->max_id = 1;  in usb_stor_probe2()
1029 		if (us->transport == usb_stor_Bulk_transport)  in usb_stor_probe2()
1030 			us_to_host(us)->no_scsi2_lun_in_cdb = 1;  in usb_stor_probe2()
1034 	if (us->fflags & US_FL_SINGLE_LUN)  in usb_stor_probe2()
1035 		us->max_lun = 0;  in usb_stor_probe2()
1038 	result = get_pipes(us);  in usb_stor_probe2()
1046 	if (us->fflags & US_FL_INITIAL_READ10)  in usb_stor_probe2()
1047 		set_bit(US_FLIDX_REDO_READ10, &us->dflags);  in usb_stor_probe2()
1050 	result = usb_stor_acquire_resources(us);  in usb_stor_probe2()
1053 	usb_autopm_get_interface_no_resume(us->pusb_intf);  in usb_stor_probe2()
1054 	snprintf(us->scsi_name, sizeof(us->scsi_name), "usb-storage %s",  in usb_stor_probe2()
1055 					dev_name(&us->pusb_intf->dev));  in usb_stor_probe2()
1056 	result = scsi_add_host(us_to_host(us), dev);  in usb_stor_probe2()
1064 	set_bit(US_FLIDX_SCAN_PENDING, &us->dflags);  in usb_stor_probe2()
1068 	queue_delayed_work(system_freezable_wq, &us->scan_dwork,  in usb_stor_probe2()
1074 	usb_autopm_put_interface_no_suspend(us->pusb_intf);  in usb_stor_probe2()
1076 	usb_stor_dbg(us, "storage_probe() failed\n");  in usb_stor_probe2()
1077 	release_everything(us);  in usb_stor_probe2()
1085 	struct us_data *us = usb_get_intfdata(intf);  in usb_stor_disconnect()  local
1087 	quiesce_and_remove_host(us);  in usb_stor_disconnect()
1088 	release_everything(us);  in usb_stor_disconnect()
1099 	struct us_data *us;  in storage_probe()  local
1134 	result = usb_stor_probe1(&us, intf, id, unusual_dev,  in storage_probe()
1141 	result = usb_stor_probe2(us);  in storage_probe()