179 	struct memstick_host *host = container_of(dev, struct memstick_host,  in memstick_free()  local
181 	kfree(host);  in memstick_free()
202  * memstick_detect_change - schedule media detection on memstick host
203  * @host: host to use
205 void memstick_detect_change(struct memstick_host *host)  in memstick_detect_change()  argument
207 	queue_work(workqueue, &host->media_checker);  in memstick_detect_change()
212  * memstick_next_req - called by host driver to obtain next request to process
213  * @host: host to use
216  * Host calls this function from idle state (*mrq == NULL) or after finishing
220  * Returns: value of 0 means that new request was assigned to the host.
223 int memstick_next_req(struct memstick_host *host, struct memstick_request **mrq)  in memstick_next_req()  argument
227 	if ((*mrq) && (*mrq)->error && host->retries) {  in memstick_next_req()
229 		host->retries--;  in memstick_next_req()
233 	if (host->card && host->card->next_request)  in memstick_next_req()
234 		rc = host->card->next_request(host->card, mrq);  in memstick_next_req()
237 		host->retries = cmd_retries > 1 ? cmd_retries - 1 : 1;  in memstick_next_req()
246  * memstick_new_req - notify the host that some requests are pending
247  * @host: host to use
249 void memstick_new_req(struct memstick_host *host)  in memstick_new_req()  argument
251 	if (host->card) {  in memstick_new_req()
252 		host->retries = cmd_retries;  in memstick_new_req()
253 		reinit_completion(&host->card->mrq_complete);  in memstick_new_req()
254 		host->request(host);  in memstick_new_req()
372 	memstick_new_req(card->host);  in memstick_set_rw_addr()
381 static struct memstick_dev *memstick_alloc_card(struct memstick_host *host)  in memstick_alloc_card()  argument
384 	struct memstick_dev *old_card = host->card;  in memstick_alloc_card()
388 		card->host = host;  in memstick_alloc_card()
389 		dev_set_name(&card->dev, "%s", dev_name(&host->dev));  in memstick_alloc_card()
390 		card->dev.parent = &host->dev;  in memstick_alloc_card()
402 		host->card = card;  in memstick_alloc_card()
407 		memstick_new_req(host);  in memstick_alloc_card()
415 	host->card = old_card;  in memstick_alloc_card()
418 	host->card = old_card;  in memstick_alloc_card()
424 static int memstick_power_on(struct memstick_host *host)  in memstick_power_on()  argument
426 	int rc = host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_ON);  in memstick_power_on()
429 		rc = host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_SERIAL);  in memstick_power_on()
436 	struct memstick_host *host = container_of(work, struct memstick_host,  in memstick_check()  local
440 	dev_dbg(&host->dev, "memstick_check started\n");  in memstick_check()
441 	pm_runtime_get_noresume(host->dev.parent);  in memstick_check()
442 	mutex_lock(&host->lock);  in memstick_check()
443 	if (!host->card) {  in memstick_check()
444 		if (memstick_power_on(host))  in memstick_check()
446 	} else if (host->card->stop)  in memstick_check()
447 		host->card->stop(host->card);  in memstick_check()
449 	if (host->removing)  in memstick_check()
452 	card = memstick_alloc_card(host);  in memstick_check()
455 		if (host->card) {  in memstick_check()
456 			device_unregister(&host->card->dev);  in memstick_check()
457 			host->card = NULL;  in memstick_check()
460 		dev_dbg(&host->dev, "new card %02x, %02x, %02x\n",  in memstick_check()
462 		if (host->card) {  in memstick_check()
463 			if (memstick_set_rw_addr(host->card)  in memstick_check()
464 			    || !memstick_dev_match(host->card, &card->id)  in memstick_check()
465 			    || !(host->card->check(host->card))) {  in memstick_check()
466 				device_unregister(&host->card->dev);  in memstick_check()
467 				host->card = NULL;  in memstick_check()
468 			} else if (host->card->start)  in memstick_check()
469 				host->card->start(host->card);  in memstick_check()
472 		if (!host->card) {  in memstick_check()
473 			host->card = card;  in memstick_check()
476 				host->card = NULL;  in memstick_check()
485 	if (!host->card)  in memstick_check()
486 		host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_OFF);  in memstick_check()
488 	mutex_unlock(&host->lock);  in memstick_check()
489 	pm_runtime_put(host->dev.parent);  in memstick_check()
490 	dev_dbg(&host->dev, "memstick_check finished\n");  in memstick_check()
496  * @dev: parent device of the host
503 	struct memstick_host *host;  in memstick_alloc_host()  local
505 	host = kzalloc(sizeof(struct memstick_host) + extra, GFP_KERNEL);  in memstick_alloc_host()
506 	if (host) {  in memstick_alloc_host()
507 		mutex_init(&host->lock);  in memstick_alloc_host()
508 		INIT_WORK(&host->media_checker, memstick_check);  in memstick_alloc_host()
509 		host->dev.class = &memstick_host_class;  in memstick_alloc_host()
510 		host->dev.parent = dev;  in memstick_alloc_host()
511 		device_initialize(&host->dev);  in memstick_alloc_host()
513 	return host;  in memstick_alloc_host()
518  * memstick_add_host - start request processing on memstick host
519  * @host: host to use
523 int memstick_add_host(struct memstick_host *host)  in memstick_add_host()  argument
530 	rc = idr_alloc(&memstick_host_idr, host, 0, 0, GFP_NOWAIT);  in memstick_add_host()
532 		host->id = rc;  in memstick_add_host()
539 	dev_set_name(&host->dev, "memstick%u", host->id);  in memstick_add_host()
541 	rc = device_add(&host->dev);  in memstick_add_host()
544 		idr_remove(&memstick_host_idr, host->id);  in memstick_add_host()
549 	host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_OFF);  in memstick_add_host()
550 	memstick_detect_change(host);  in memstick_add_host()
556  * memstick_remove_host - stop request processing on memstick host
557  * @host: host to use
559 void memstick_remove_host(struct memstick_host *host)  in memstick_remove_host()  argument
562 	mutex_lock(&host->lock);  in memstick_remove_host()
563 	if (host->card)  in memstick_remove_host()
564 		device_unregister(&host->card->dev);  in memstick_remove_host()
565 	host->card = NULL;  in memstick_remove_host()
566 	host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_OFF);  in memstick_remove_host()
567 	mutex_unlock(&host->lock);  in memstick_remove_host()
570 	idr_remove(&memstick_host_idr, host->id);  in memstick_remove_host()
572 	device_del(&host->dev);  in memstick_remove_host()
577  * memstick_free_host - free memstick host
578  * @host: host to use
580 void memstick_free_host(struct memstick_host *host)  in memstick_free_host()  argument
582 	mutex_destroy(&host->lock);  in memstick_free_host()
583 	put_device(&host->dev);  in memstick_free_host()
588  * memstick_suspend_host - notify bus driver of host suspension
589  * @host: host to use
591 void memstick_suspend_host(struct memstick_host *host)  in memstick_suspend_host()  argument
593 	mutex_lock(&host->lock);  in memstick_suspend_host()
594 	host->set_param(host, MEMSTICK_POWER, MEMSTICK_POWER_OFF);  in memstick_suspend_host()
595 	mutex_unlock(&host->lock);  in memstick_suspend_host()
600  * memstick_resume_host - notify bus driver of host resumption
601  * @host: host to use
603 void memstick_resume_host(struct memstick_host *host)  in memstick_resume_host()  argument
607 	mutex_lock(&host->lock);  in memstick_resume_host()
608 	if (host->card)  in memstick_resume_host()
609 		rc = memstick_power_on(host);  in memstick_resume_host()
610 	mutex_unlock(&host->lock);  in memstick_resume_host()
613 		memstick_detect_change(host);  in memstick_resume_host()