190 static struct bus_request *ath6kl_sdio_alloc_busreq(struct ath6kl_sdio *ar_sdio)  in ath6kl_sdio_alloc_busreq()  argument
194 	spin_lock_bh(&ar_sdio->lock);  in ath6kl_sdio_alloc_busreq()
196 	if (list_empty(&ar_sdio->bus_req_freeq)) {  in ath6kl_sdio_alloc_busreq()
197 		spin_unlock_bh(&ar_sdio->lock);  in ath6kl_sdio_alloc_busreq()
201 	bus_req = list_first_entry(&ar_sdio->bus_req_freeq,  in ath6kl_sdio_alloc_busreq()
205 	spin_unlock_bh(&ar_sdio->lock);  in ath6kl_sdio_alloc_busreq()
212 static void ath6kl_sdio_free_bus_req(struct ath6kl_sdio *ar_sdio,  in ath6kl_sdio_free_bus_req()  argument
218 	spin_lock_bh(&ar_sdio->lock);  in ath6kl_sdio_free_bus_req()
219 	list_add_tail(&bus_req->list, &ar_sdio->bus_req_freeq);  in ath6kl_sdio_free_bus_req()
220 	spin_unlock_bh(&ar_sdio->lock);  in ath6kl_sdio_free_bus_req()
260 static int ath6kl_sdio_scat_rw(struct ath6kl_sdio *ar_sdio,  in ath6kl_sdio_scat_rw()  argument
277 		status = ath6kl_sdio_io(ar_sdio->func, scat_req->req,  in ath6kl_sdio_scat_rw()
304 	ath6kl_sdio_set_cmd53_arg(&cmd.arg, rw, ar_sdio->func->num,  in ath6kl_sdio_scat_rw()
314 	sdio_claim_host(ar_sdio->func);  in ath6kl_sdio_scat_rw()
316 	mmc_set_data_timeout(&data, ar_sdio->func->card);  in ath6kl_sdio_scat_rw()
325 	mmc_wait_for_req(ar_sdio->func->card->host, &mmc_req);  in ath6kl_sdio_scat_rw()
327 	sdio_release_host(ar_sdio->func);  in ath6kl_sdio_scat_rw()
339 		scat_req->complete(ar_sdio->ar->htc_target, scat_req);  in ath6kl_sdio_scat_rw()
344 static int ath6kl_sdio_alloc_prep_scat_req(struct ath6kl_sdio *ar_sdio,  in ath6kl_sdio_alloc_prep_scat_req()  argument
388 		bus_req = ath6kl_sdio_alloc_busreq(ar_sdio);  in ath6kl_sdio_alloc_prep_scat_req()
403 		hif_scatter_req_add(ar_sdio->ar, s_req);  in ath6kl_sdio_alloc_prep_scat_req()
412 	struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);  in ath6kl_sdio_read_write_sync()  local
421 		if (!ar_sdio->dma_buffer)  in ath6kl_sdio_read_write_sync()
423 		mutex_lock(&ar_sdio->dma_buffer_mutex);  in ath6kl_sdio_read_write_sync()
424 		tbuf = ar_sdio->dma_buffer;  in ath6kl_sdio_read_write_sync()
434 	ret = ath6kl_sdio_io(ar_sdio->func, request, addr, tbuf, len);  in ath6kl_sdio_read_write_sync()
439 		mutex_unlock(&ar_sdio->dma_buffer_mutex);  in ath6kl_sdio_read_write_sync()
444 static void __ath6kl_sdio_write_async(struct ath6kl_sdio *ar_sdio,  in __ath6kl_sdio_write_async()  argument
448 		ath6kl_sdio_scat_rw(ar_sdio, req);  in __ath6kl_sdio_write_async()
453 		status = ath6kl_sdio_read_write_sync(ar_sdio->ar, req->address,  in __ath6kl_sdio_write_async()
457 		ath6kl_sdio_free_bus_req(ar_sdio, req);  in __ath6kl_sdio_write_async()
464 	struct ath6kl_sdio *ar_sdio;  in ath6kl_sdio_write_async_work()  local
467 	ar_sdio = container_of(work, struct ath6kl_sdio, wr_async_work);  in ath6kl_sdio_write_async_work()
469 	spin_lock_bh(&ar_sdio->wr_async_lock);  in ath6kl_sdio_write_async_work()
470 	list_for_each_entry_safe(req, tmp_req, &ar_sdio->wr_asyncq, list) {  in ath6kl_sdio_write_async_work()
472 		spin_unlock_bh(&ar_sdio->wr_async_lock);  in ath6kl_sdio_write_async_work()
473 		__ath6kl_sdio_write_async(ar_sdio, req);  in ath6kl_sdio_write_async_work()
474 		spin_lock_bh(&ar_sdio->wr_async_lock);  in ath6kl_sdio_write_async_work()
476 	spin_unlock_bh(&ar_sdio->wr_async_lock);  in ath6kl_sdio_write_async_work()
482 	struct ath6kl_sdio *ar_sdio;  in ath6kl_sdio_irq_handler()  local
486 	ar_sdio = sdio_get_drvdata(func);  in ath6kl_sdio_irq_handler()
487 	atomic_set(&ar_sdio->irq_handling, 1);  in ath6kl_sdio_irq_handler()
492 	sdio_release_host(ar_sdio->func);  in ath6kl_sdio_irq_handler()
494 	status = ath6kl_hif_intr_bh_handler(ar_sdio->ar);  in ath6kl_sdio_irq_handler()
495 	sdio_claim_host(ar_sdio->func);  in ath6kl_sdio_irq_handler()
497 	atomic_set(&ar_sdio->irq_handling, 0);  in ath6kl_sdio_irq_handler()
498 	wake_up(&ar_sdio->irq_wq);  in ath6kl_sdio_irq_handler()
505 	struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);  in ath6kl_sdio_power_on()  local
506 	struct sdio_func *func = ar_sdio->func;  in ath6kl_sdio_power_on()
509 	if (!ar_sdio->is_disabled)  in ath6kl_sdio_power_on()
537 	ar_sdio->is_disabled = false;  in ath6kl_sdio_power_on()
545 	struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);  in ath6kl_sdio_power_off()  local
548 	if (ar_sdio->is_disabled)  in ath6kl_sdio_power_off()
554 	sdio_claim_host(ar_sdio->func);  in ath6kl_sdio_power_off()
555 	ret = sdio_disable_func(ar_sdio->func);  in ath6kl_sdio_power_off()
556 	sdio_release_host(ar_sdio->func);  in ath6kl_sdio_power_off()
561 	ar_sdio->is_disabled = true;  in ath6kl_sdio_power_off()
570 	struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);  in ath6kl_sdio_write_async()  local
573 	bus_req = ath6kl_sdio_alloc_busreq(ar_sdio);  in ath6kl_sdio_write_async()
584 	spin_lock_bh(&ar_sdio->wr_async_lock);  in ath6kl_sdio_write_async()
585 	list_add_tail(&bus_req->list, &ar_sdio->wr_asyncq);  in ath6kl_sdio_write_async()
586 	spin_unlock_bh(&ar_sdio->wr_async_lock);  in ath6kl_sdio_write_async()
587 	queue_work(ar->ath6kl_wq, &ar_sdio->wr_async_work);  in ath6kl_sdio_write_async()
594 	struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);  in ath6kl_sdio_irq_enable()  local
597 	sdio_claim_host(ar_sdio->func);  in ath6kl_sdio_irq_enable()
600 	ret =  sdio_claim_irq(ar_sdio->func, ath6kl_sdio_irq_handler);  in ath6kl_sdio_irq_enable()
604 	sdio_release_host(ar_sdio->func);  in ath6kl_sdio_irq_enable()
609 	struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);  in ath6kl_sdio_is_on_irq()  local
611 	return !atomic_read(&ar_sdio->irq_handling);  in ath6kl_sdio_is_on_irq()
616 	struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);  in ath6kl_sdio_irq_disable()  local
619 	sdio_claim_host(ar_sdio->func);  in ath6kl_sdio_irq_disable()
621 	if (atomic_read(&ar_sdio->irq_handling)) {  in ath6kl_sdio_irq_disable()
622 		sdio_release_host(ar_sdio->func);  in ath6kl_sdio_irq_disable()
624 		ret = wait_event_interruptible(ar_sdio->irq_wq,  in ath6kl_sdio_irq_disable()
629 		sdio_claim_host(ar_sdio->func);  in ath6kl_sdio_irq_disable()
632 	ret = sdio_release_irq(ar_sdio->func);  in ath6kl_sdio_irq_disable()
636 	sdio_release_host(ar_sdio->func);  in ath6kl_sdio_irq_disable()
641 	struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);  in ath6kl_sdio_scatter_req_get()  local
644 	spin_lock_bh(&ar_sdio->scat_lock);  in ath6kl_sdio_scatter_req_get()
646 	if (!list_empty(&ar_sdio->scat_req)) {  in ath6kl_sdio_scatter_req_get()
647 		node = list_first_entry(&ar_sdio->scat_req,  in ath6kl_sdio_scatter_req_get()
651 		node->scat_q_depth = get_queue_depth(&ar_sdio->scat_req);  in ath6kl_sdio_scatter_req_get()
654 	spin_unlock_bh(&ar_sdio->scat_lock);  in ath6kl_sdio_scatter_req_get()
662 	struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);  in ath6kl_sdio_scatter_req_add()  local
664 	spin_lock_bh(&ar_sdio->scat_lock);  in ath6kl_sdio_scatter_req_add()
666 	list_add_tail(&s_req->list, &ar_sdio->scat_req);  in ath6kl_sdio_scatter_req_add()
668 	spin_unlock_bh(&ar_sdio->scat_lock);  in ath6kl_sdio_scatter_req_add()
675 	struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);  in ath6kl_sdio_async_rw_scatter()  local
687 		status = ath6kl_sdio_scat_rw(ar_sdio, scat_req->busrequest);  in ath6kl_sdio_async_rw_scatter()
689 		spin_lock_bh(&ar_sdio->wr_async_lock);  in ath6kl_sdio_async_rw_scatter()
690 		list_add_tail(&scat_req->busrequest->list, &ar_sdio->wr_asyncq);  in ath6kl_sdio_async_rw_scatter()
691 		spin_unlock_bh(&ar_sdio->wr_async_lock);  in ath6kl_sdio_async_rw_scatter()
692 		queue_work(ar->ath6kl_wq, &ar_sdio->wr_async_work);  in ath6kl_sdio_async_rw_scatter()
701 	struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);  in ath6kl_sdio_cleanup_scatter()  local
705 	spin_lock_bh(&ar_sdio->scat_lock);  in ath6kl_sdio_cleanup_scatter()
706 	list_for_each_entry_safe(s_req, tmp_req, &ar_sdio->scat_req, list) {  in ath6kl_sdio_cleanup_scatter()
708 		spin_unlock_bh(&ar_sdio->scat_lock);  in ath6kl_sdio_cleanup_scatter()
717 			ath6kl_sdio_free_bus_req(ar_sdio, s_req->busrequest);  in ath6kl_sdio_cleanup_scatter()
723 		spin_lock_bh(&ar_sdio->scat_lock);  in ath6kl_sdio_cleanup_scatter()
725 	spin_unlock_bh(&ar_sdio->scat_lock);  in ath6kl_sdio_cleanup_scatter()
727 	ar_sdio->scatter_enabled = false;  in ath6kl_sdio_cleanup_scatter()
733 	struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);  in ath6kl_sdio_enable_scatter()  local
738 	if (ar_sdio->scatter_enabled)  in ath6kl_sdio_enable_scatter()
741 	ar_sdio->scatter_enabled = true;  in ath6kl_sdio_enable_scatter()
744 	if (ar_sdio->func->card->host->max_segs < MAX_SCATTER_ENTRIES_PER_REQ) {  in ath6kl_sdio_enable_scatter()
746 			   ar_sdio->func->card->host->max_segs,  in ath6kl_sdio_enable_scatter()
752 		ret = ath6kl_sdio_alloc_prep_scat_req(ar_sdio,  in ath6kl_sdio_enable_scatter()
772 		ret = ath6kl_sdio_alloc_prep_scat_req(ar_sdio,  in ath6kl_sdio_enable_scatter()
796 	struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);  in ath6kl_sdio_config()  local
797 	struct sdio_func *func = ar_sdio->func;  in ath6kl_sdio_config()
802 	if (ar_sdio->id->device >= SDIO_DEVICE_ID_ATHEROS_AR6003_00) {  in ath6kl_sdio_config()
834 	struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);  in ath6kl_set_sdio_pm_caps()  local
835 	struct sdio_func *func = ar_sdio->func;  in ath6kl_set_sdio_pm_caps()
863 	struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);  in ath6kl_sdio_suspend()  local
864 	struct sdio_func *func = ar_sdio->func;  in ath6kl_sdio_suspend()
1224 	struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);  in ath6kl_sdio_stop()  local
1230 	cancel_work_sync(&ar_sdio->wr_async_work);  in ath6kl_sdio_stop()
1232 	spin_lock_bh(&ar_sdio->wr_async_lock);  in ath6kl_sdio_stop()
1234 	list_for_each_entry_safe(req, tmp_req, &ar_sdio->wr_asyncq, list) {  in ath6kl_sdio_stop()
1240 			req->scat_req->complete(ar_sdio->ar->htc_target,  in ath6kl_sdio_stop()
1244 			ath6kl_sdio_free_bus_req(ar_sdio, req);  in ath6kl_sdio_stop()
1249 	spin_unlock_bh(&ar_sdio->wr_async_lock);  in ath6kl_sdio_stop()
1251 	WARN_ON(get_queue_depth(&ar_sdio->scat_req) != 4);  in ath6kl_sdio_stop()
1310 	struct ath6kl_sdio *ar_sdio;  in ath6kl_sdio_probe()  local
1319 	ar_sdio = kzalloc(sizeof(struct ath6kl_sdio), GFP_KERNEL);  in ath6kl_sdio_probe()
1320 	if (!ar_sdio)  in ath6kl_sdio_probe()
1323 	ar_sdio->dma_buffer = kzalloc(HIF_DMA_BUFFER_SIZE, GFP_KERNEL);  in ath6kl_sdio_probe()
1324 	if (!ar_sdio->dma_buffer) {  in ath6kl_sdio_probe()
1329 	ar_sdio->func = func;  in ath6kl_sdio_probe()
1330 	sdio_set_drvdata(func, ar_sdio);  in ath6kl_sdio_probe()
1332 	ar_sdio->id = id;  in ath6kl_sdio_probe()
1333 	ar_sdio->is_disabled = true;  in ath6kl_sdio_probe()
1335 	spin_lock_init(&ar_sdio->lock);  in ath6kl_sdio_probe()
1336 	spin_lock_init(&ar_sdio->scat_lock);  in ath6kl_sdio_probe()
1337 	spin_lock_init(&ar_sdio->wr_async_lock);  in ath6kl_sdio_probe()
1338 	mutex_init(&ar_sdio->dma_buffer_mutex);  in ath6kl_sdio_probe()
1340 	INIT_LIST_HEAD(&ar_sdio->scat_req);  in ath6kl_sdio_probe()
1341 	INIT_LIST_HEAD(&ar_sdio->bus_req_freeq);  in ath6kl_sdio_probe()
1342 	INIT_LIST_HEAD(&ar_sdio->wr_asyncq);  in ath6kl_sdio_probe()
1344 	INIT_WORK(&ar_sdio->wr_async_work, ath6kl_sdio_write_async_work);  in ath6kl_sdio_probe()
1346 	init_waitqueue_head(&ar_sdio->irq_wq);  in ath6kl_sdio_probe()
1349 		ath6kl_sdio_free_bus_req(ar_sdio, &ar_sdio->bus_req[count]);  in ath6kl_sdio_probe()
1351 	ar = ath6kl_core_create(&ar_sdio->func->dev);  in ath6kl_sdio_probe()
1358 	ar_sdio->ar = ar;  in ath6kl_sdio_probe()
1360 	ar->hif_priv = ar_sdio;  in ath6kl_sdio_probe()
1381 	ath6kl_core_destroy(ar_sdio->ar);  in ath6kl_sdio_probe()
1383 	kfree(ar_sdio->dma_buffer);  in ath6kl_sdio_probe()
1385 	kfree(ar_sdio);  in ath6kl_sdio_probe()
1392 	struct ath6kl_sdio *ar_sdio;  in ath6kl_sdio_remove()  local
1398 	ar_sdio = sdio_get_drvdata(func);  in ath6kl_sdio_remove()
1400 	ath6kl_stop_txrx(ar_sdio->ar);  in ath6kl_sdio_remove()
1401 	cancel_work_sync(&ar_sdio->wr_async_work);  in ath6kl_sdio_remove()
1403 	ath6kl_core_cleanup(ar_sdio->ar);  in ath6kl_sdio_remove()
1404 	ath6kl_core_destroy(ar_sdio->ar);  in ath6kl_sdio_remove()
1406 	kfree(ar_sdio->dma_buffer);  in ath6kl_sdio_remove()
1407 	kfree(ar_sdio);  in ath6kl_sdio_remove()