88 	struct mos7715_parport  *mos_parport;  member
251 static inline int mos7715_change_mode(struct mos7715_parport *mos_parport,  in mos7715_change_mode()  argument
254 	mos_parport->shadowECR = mode;  in mos7715_change_mode()
255 	write_mos_reg(mos_parport->serial, dummy, MOS7720_ECR,  in mos7715_change_mode()
256 		      mos_parport->shadowECR);  in mos7715_change_mode()
262 	struct mos7715_parport *mos_parport =  in destroy_mos_parport()  local
265 	kfree(mos_parport);  in destroy_mos_parport()
272 	struct mos7715_parport *mos_parport = urbtrack->mos_parport;  in destroy_urbtracker()  local
277 	kref_put(&mos_parport->ref_count, destroy_mos_parport);  in destroy_urbtracker()
289 	struct mos7715_parport *mos_parport = (void *)_mos_parport;  in send_deferred_urbs()  local
295 	if (unlikely(mos_parport->serial == NULL))  in send_deferred_urbs()
298 	dev = &mos_parport->serial->dev->dev;  in send_deferred_urbs()
301 	if (!mutex_trylock(&mos_parport->serial->disc_mutex)) {  in send_deferred_urbs()
303 		tasklet_schedule(&mos_parport->urb_tasklet);  in send_deferred_urbs()
308 	if (unlikely(mos_parport->serial->disconnected)) {  in send_deferred_urbs()
309 		mutex_unlock(&mos_parport->serial->disc_mutex);  in send_deferred_urbs()
313 	spin_lock_irqsave(&mos_parport->listlock, flags);  in send_deferred_urbs()
314 	if (list_empty(&mos_parport->deferred_urbs)) {  in send_deferred_urbs()
315 		spin_unlock_irqrestore(&mos_parport->listlock, flags);  in send_deferred_urbs()
316 		mutex_unlock(&mos_parport->serial->disc_mutex);  in send_deferred_urbs()
322 	list_for_each_safe(cursor, next, &mos_parport->deferred_urbs)  in send_deferred_urbs()
323 		list_move_tail(cursor, &mos_parport->active_urbs);  in send_deferred_urbs()
324 	list_for_each_entry_safe(urbtrack, tmp, &mos_parport->active_urbs,  in send_deferred_urbs()
334 	spin_unlock_irqrestore(&mos_parport->listlock, flags);  in send_deferred_urbs()
335 	mutex_unlock(&mos_parport->serial->disc_mutex);  in send_deferred_urbs()
348 	spin_lock(&urbtrack->mos_parport->listlock);  in async_complete()
350 	spin_unlock(&urbtrack->mos_parport->listlock);  in async_complete()
354 static int write_parport_reg_nonblock(struct mos7715_parport *mos_parport,  in write_parport_reg_nonblock()  argument
360 	struct usb_serial *serial = mos_parport->serial;  in write_parport_reg_nonblock()
368 	kref_get(&mos_parport->ref_count);  in write_parport_reg_nonblock()
369 	urbtrack->mos_parport = mos_parport;  in write_parport_reg_nonblock()
398 		spin_lock_irqsave(&mos_parport->listlock, flags);  in write_parport_reg_nonblock()
400 			      &mos_parport->deferred_urbs);  in write_parport_reg_nonblock()
401 		spin_unlock_irqrestore(&mos_parport->listlock, flags);  in write_parport_reg_nonblock()
402 		tasklet_schedule(&mos_parport->urb_tasklet);  in write_parport_reg_nonblock()
415 	spin_lock_irqsave(&mos_parport->listlock, flags);  in write_parport_reg_nonblock()
416 	list_add_tail(&urbtrack->urblist_entry, &mos_parport->active_urbs);  in write_parport_reg_nonblock()
417 	spin_unlock_irqrestore(&mos_parport->listlock, flags);  in write_parport_reg_nonblock()
423 		spin_lock_irqsave(&mos_parport->listlock, flags);  in write_parport_reg_nonblock()
425 		spin_unlock_irqrestore(&mos_parport->listlock, flags);  in write_parport_reg_nonblock()
446 	struct mos7715_parport *mos_parport;  in parport_prologue()  local
449 	mos_parport = pp->private_data;  in parport_prologue()
450 	if (unlikely(mos_parport == NULL)) {  in parport_prologue()
455 	mos_parport->msg_pending = true;   /* synch usb call pending */  in parport_prologue()
456 	reinit_completion(&mos_parport->syncmsg_compl);  in parport_prologue()
459 	mutex_lock(&mos_parport->serial->disc_mutex);  in parport_prologue()
460 	if (mos_parport->serial->disconnected) {  in parport_prologue()
462 		mutex_unlock(&mos_parport->serial->disc_mutex);  in parport_prologue()
463 		mos_parport->msg_pending = false;  in parport_prologue()
464 		complete(&mos_parport->syncmsg_compl);  in parport_prologue()
477 	struct mos7715_parport *mos_parport = pp->private_data;  in parport_epilogue()  local
478 	mutex_unlock(&mos_parport->serial->disc_mutex);  in parport_epilogue()
479 	mos_parport->msg_pending = false;  in parport_epilogue()
480 	complete(&mos_parport->syncmsg_compl);  in parport_epilogue()
485 	struct mos7715_parport *mos_parport = pp->private_data;  in parport_mos7715_write_data()  local
489 	mos7715_change_mode(mos_parport, SPP);  in parport_mos7715_write_data()
490 	write_mos_reg(mos_parport->serial, dummy, MOS7720_DPR, (__u8)d);  in parport_mos7715_write_data()
496 	struct mos7715_parport *mos_parport = pp->private_data;  in parport_mos7715_read_data()  local
501 	read_mos_reg(mos_parport->serial, dummy, MOS7720_DPR, &d);  in parport_mos7715_read_data()
508 	struct mos7715_parport *mos_parport = pp->private_data;  in parport_mos7715_write_control()  local
513 	data = ((__u8)d & 0x0f) | (mos_parport->shadowDCR & 0xf0);  in parport_mos7715_write_control()
514 	write_mos_reg(mos_parport->serial, dummy, MOS7720_DCR, data);  in parport_mos7715_write_control()
515 	mos_parport->shadowDCR = data;  in parport_mos7715_write_control()
521 	struct mos7715_parport *mos_parport = pp->private_data;  in parport_mos7715_read_control()  local
525 	mos_parport = pp->private_data;  in parport_mos7715_read_control()
526 	if (unlikely(mos_parport == NULL)) {  in parport_mos7715_read_control()
530 	dcr = mos_parport->shadowDCR & 0x0f;  in parport_mos7715_read_control()
539 	struct mos7715_parport *mos_parport = pp->private_data;  in parport_mos7715_frob_control()  local
546 	mos_parport->shadowDCR = (mos_parport->shadowDCR & (~mask)) ^ val;  in parport_mos7715_frob_control()
547 	write_mos_reg(mos_parport->serial, dummy, MOS7720_DCR,  in parport_mos7715_frob_control()
548 		      mos_parport->shadowDCR);  in parport_mos7715_frob_control()
549 	dcr = mos_parport->shadowDCR & 0x0f;  in parport_mos7715_frob_control()
557 	struct mos7715_parport *mos_parport = pp->private_data;  in parport_mos7715_read_status()  local
560 	mos_parport = pp->private_data;  in parport_mos7715_read_status()
561 	if (unlikely(mos_parport == NULL)) {	/* release called */  in parport_mos7715_read_status()
565 	status = atomic_read(&mos_parport->shadowDSR) & 0xf8;  in parport_mos7715_read_status()
580 	struct mos7715_parport *mos_parport = pp->private_data;  in parport_mos7715_data_forward()  local
584 	mos7715_change_mode(mos_parport, PS2);  in parport_mos7715_data_forward()
585 	mos_parport->shadowDCR &=  ~0x20;  in parport_mos7715_data_forward()
586 	write_mos_reg(mos_parport->serial, dummy, MOS7720_DCR,  in parport_mos7715_data_forward()
587 		      mos_parport->shadowDCR);  in parport_mos7715_data_forward()
593 	struct mos7715_parport *mos_parport = pp->private_data;  in parport_mos7715_data_reverse()  local
597 	mos7715_change_mode(mos_parport, PS2);  in parport_mos7715_data_reverse()
598 	mos_parport->shadowDCR |= 0x20;  in parport_mos7715_data_reverse()
599 	write_mos_reg(mos_parport->serial, dummy, MOS7720_DCR,  in parport_mos7715_data_reverse()
600 		      mos_parport->shadowDCR);  in parport_mos7715_data_reverse()
615 	struct mos7715_parport *mos_parport;  in parport_mos7715_save_state()  local
618 	mos_parport = pp->private_data;  in parport_mos7715_save_state()
619 	if (unlikely(mos_parport == NULL)) {	/* release called */  in parport_mos7715_save_state()
623 	s->u.pc.ctr = mos_parport->shadowDCR;  in parport_mos7715_save_state()
624 	s->u.pc.ecr = mos_parport->shadowECR;  in parport_mos7715_save_state()
632 	struct mos7715_parport *mos_parport;  in parport_mos7715_restore_state()  local
635 	mos_parport = pp->private_data;  in parport_mos7715_restore_state()
636 	if (unlikely(mos_parport == NULL)) {	/* release called */  in parport_mos7715_restore_state()
640 	write_parport_reg_nonblock(mos_parport, MOS7720_DCR,  in parport_mos7715_restore_state()
641 				   mos_parport->shadowDCR);  in parport_mos7715_restore_state()
642 	write_parport_reg_nonblock(mos_parport, MOS7720_ECR,  in parport_mos7715_restore_state()
643 				   mos_parport->shadowECR);  in parport_mos7715_restore_state()
652 	struct mos7715_parport *mos_parport = pp->private_data;  in parport_mos7715_write_compat()  local
657 	mos7715_change_mode(mos_parport, PPF);  in parport_mos7715_write_compat()
658 	retval = usb_bulk_msg(mos_parport->serial->dev,  in parport_mos7715_write_compat()
659 			      usb_sndbulkpipe(mos_parport->serial->dev, 2),  in parport_mos7715_write_compat()
664 		dev_err(&mos_parport->serial->dev->dev,  in parport_mos7715_write_compat()
704 	struct mos7715_parport *mos_parport;  in mos7715_parport_init()  local
707 	mos_parport = kzalloc(sizeof(struct mos7715_parport), GFP_KERNEL);  in mos7715_parport_init()
708 	if (!mos_parport)  in mos7715_parport_init()
711 	mos_parport->msg_pending = false;  in mos7715_parport_init()
712 	kref_init(&mos_parport->ref_count);  in mos7715_parport_init()
713 	spin_lock_init(&mos_parport->listlock);  in mos7715_parport_init()
714 	INIT_LIST_HEAD(&mos_parport->active_urbs);  in mos7715_parport_init()
715 	INIT_LIST_HEAD(&mos_parport->deferred_urbs);  in mos7715_parport_init()
716 	usb_set_serial_data(serial, mos_parport); /* hijack private pointer */  in mos7715_parport_init()
717 	mos_parport->serial = serial;  in mos7715_parport_init()
718 	tasklet_init(&mos_parport->urb_tasklet, send_deferred_urbs,  in mos7715_parport_init()
719 		     (unsigned long) mos_parport);  in mos7715_parport_init()
720 	init_completion(&mos_parport->syncmsg_compl);  in mos7715_parport_init()
723 	write_mos_reg(mos_parport->serial, dummy, MOS7720_PP_REG, (__u8)0x80);  in mos7715_parport_init()
724 	write_mos_reg(mos_parport->serial, dummy, MOS7720_PP_REG, (__u8)0x00);  in mos7715_parport_init()
727 	mos_parport->shadowDCR = DCR_INIT_VAL;  in mos7715_parport_init()
728 	write_mos_reg(mos_parport->serial, dummy, MOS7720_DCR,  in mos7715_parport_init()
729 		      mos_parport->shadowDCR);  in mos7715_parport_init()
730 	mos_parport->shadowECR = ECR_INIT_VAL;  in mos7715_parport_init()
731 	write_mos_reg(mos_parport->serial, dummy, MOS7720_ECR,  in mos7715_parport_init()
732 		      mos_parport->shadowECR);  in mos7715_parport_init()
735 	mos_parport->pp = parport_register_port(0, PARPORT_IRQ_NONE,  in mos7715_parport_init()
738 	if (mos_parport->pp == NULL) {  in mos7715_parport_init()
741 		kref_put(&mos_parport->ref_count, destroy_mos_parport);  in mos7715_parport_init()
744 	mos_parport->pp->private_data = mos_parport;  in mos7715_parport_init()
745 	mos_parport->pp->modes = PARPORT_MODE_COMPAT | PARPORT_MODE_PCSPP;  in mos7715_parport_init()
746 	mos_parport->pp->dev = &serial->interface->dev;  in mos7715_parport_init()
747 	parport_announce_port(mos_parport->pp);  in mos7715_parport_init()
900 		struct mos7715_parport *mos_parport = port->serial->private;  in mos7715_interrupt_callback()  local
901 		if (unlikely(mos_parport == NULL))  in mos7715_interrupt_callback()
903 		atomic_set(&mos_parport->shadowDSR, data[2]);  in mos7715_interrupt_callback()
1983 		struct mos7715_parport *mos_parport =  in mos7720_release()  local
1988 		mos_parport->pp->private_data = NULL;  in mos7720_release()
1992 		if (mos_parport->msg_pending)  in mos7720_release()
1993 			wait_for_completion_timeout(&mos_parport->syncmsg_compl,  in mos7720_release()
1996 		parport_remove_port(mos_parport->pp);  in mos7720_release()
1998 		mos_parport->serial = NULL;  in mos7720_release()
2001 		tasklet_kill(&mos_parport->urb_tasklet);  in mos7720_release()
2004 		spin_lock_irqsave(&mos_parport->listlock, flags);  in mos7720_release()
2006 				    &mos_parport->active_urbs,  in mos7720_release()
2009 		spin_unlock_irqrestore(&mos_parport->listlock, flags);  in mos7720_release()
2011 		kref_put(&mos_parport->ref_count, destroy_mos_parport);  in mos7720_release()