113 static int st21nfca_hci_platform_init(struct st21nfca_i2c_phy *phy)  in st21nfca_hci_platform_init()  argument
121 		r = i2c_master_send(phy->i2c_dev, reboot_cmd,  in st21nfca_hci_platform_init()
133 		r = i2c_master_recv(phy->i2c_dev, tmp,  in st21nfca_hci_platform_init()
154 	struct st21nfca_i2c_phy *phy = phy_id;  in st21nfca_hci_i2c_enable()  local
156 	gpio_set_value(phy->gpio_ena, 1);  in st21nfca_hci_i2c_enable()
157 	phy->powered = 1;  in st21nfca_hci_i2c_enable()
158 	phy->run_mode = ST21NFCA_HCI_MODE;  in st21nfca_hci_i2c_enable()
167 	struct st21nfca_i2c_phy *phy = phy_id;  in st21nfca_hci_i2c_disable()  local
170 	gpio_set_value(phy->gpio_ena, 0);  in st21nfca_hci_i2c_disable()
172 	phy->powered = 0;  in st21nfca_hci_i2c_disable()
206 	struct st21nfca_i2c_phy *phy = phy_id;  in st21nfca_hci_i2c_write()  local
207 	struct i2c_client *client = phy->i2c_dev;  in st21nfca_hci_i2c_write()
213 	if (phy->hard_fault != 0)  in st21nfca_hci_i2c_write()
214 		return phy->hard_fault;  in st21nfca_hci_i2c_write()
252 	mutex_lock(&phy->phy_lock);  in st21nfca_hci_i2c_write()
258 	mutex_unlock(&phy->phy_lock);  in st21nfca_hci_i2c_write()
369 static int st21nfca_hci_i2c_read(struct st21nfca_i2c_phy *phy,  in st21nfca_hci_i2c_read()  argument
375 	struct i2c_client *client = phy->i2c_dev;  in st21nfca_hci_i2c_read()
377 	if (phy->current_read_len < ARRAY_SIZE(len_seq)) {  in st21nfca_hci_i2c_read()
378 		len = len_seq[phy->current_read_len];  in st21nfca_hci_i2c_read()
386 		mutex_lock(&phy->phy_lock);  in st21nfca_hci_i2c_read()
392 		mutex_unlock(&phy->phy_lock);  in st21nfca_hci_i2c_read()
395 			phy->current_read_len = 0;  in st21nfca_hci_i2c_read()
403 		if (!phy->current_read_len && !IS_START_OF_FRAME(buf)) {  in st21nfca_hci_i2c_read()
405 			phy->current_read_len = 0;  in st21nfca_hci_i2c_read()
407 		} else if (phy->current_read_len && IS_START_OF_FRAME(buf)) {  in st21nfca_hci_i2c_read()
414 			phy->current_read_len = 0;  in st21nfca_hci_i2c_read()
420 			phy->current_read_len = 0;  in st21nfca_hci_i2c_read()
423 		phy->current_read_len++;  in st21nfca_hci_i2c_read()
445 	struct st21nfca_i2c_phy *phy = phy_id;  in st21nfca_hci_irq_thread_fn()  local
450 	if (!phy || irq != phy->i2c_dev->irq) {  in st21nfca_hci_irq_thread_fn()
455 	client = phy->i2c_dev;  in st21nfca_hci_irq_thread_fn()
458 	if (phy->hard_fault != 0)  in st21nfca_hci_irq_thread_fn()
461 	r = st21nfca_hci_i2c_read(phy, phy->pending_skb);  in st21nfca_hci_irq_thread_fn()
463 		phy->hard_fault = r;  in st21nfca_hci_irq_thread_fn()
465 		nfc_hci_recv_frame(phy->hdev, NULL);  in st21nfca_hci_irq_thread_fn()
470 	} else if (r == -EBADMSG && phy->crc_trials < ARRAY_SIZE(wait_tab)) {  in st21nfca_hci_irq_thread_fn()
480 		msleep(wait_tab[phy->crc_trials]);  in st21nfca_hci_irq_thread_fn()
481 		phy->crc_trials++;  in st21nfca_hci_irq_thread_fn()
482 		phy->current_read_len = 0;  in st21nfca_hci_irq_thread_fn()
483 		kfree_skb(phy->pending_skb);  in st21nfca_hci_irq_thread_fn()
490 		nfc_hci_recv_frame(phy->hdev, phy->pending_skb);  in st21nfca_hci_irq_thread_fn()
491 		phy->crc_trials = 0;  in st21nfca_hci_irq_thread_fn()
493 		kfree_skb(phy->pending_skb);  in st21nfca_hci_irq_thread_fn()
496 	phy->pending_skb = alloc_skb(ST21NFCA_HCI_LLC_MAX_SIZE * 2, GFP_KERNEL);  in st21nfca_hci_irq_thread_fn()
497 	if (phy->pending_skb == NULL) {  in st21nfca_hci_irq_thread_fn()
498 		phy->hard_fault = -ENOMEM;  in st21nfca_hci_irq_thread_fn()
499 		nfc_hci_recv_frame(phy->hdev, NULL);  in st21nfca_hci_irq_thread_fn()
514 	struct st21nfca_i2c_phy *phy = i2c_get_clientdata(client);  in st21nfca_hci_i2c_of_request_resources()  local
538 	phy->gpio_ena = gpio;  in st21nfca_hci_i2c_of_request_resources()
540 	phy->irq_polarity = irq_get_trigger_type(client->irq);  in st21nfca_hci_i2c_of_request_resources()
542 	phy->se_status.is_ese_present =  in st21nfca_hci_i2c_of_request_resources()
544 	phy->se_status.is_uicc_present =  in st21nfca_hci_i2c_of_request_resources()
559 	struct st21nfca_i2c_phy *phy = i2c_get_clientdata(client);  in st21nfca_hci_i2c_request_resources()  local
569 	phy->gpio_ena = pdata->gpio_ena;  in st21nfca_hci_i2c_request_resources()
570 	phy->irq_polarity = pdata->irq_polarity;  in st21nfca_hci_i2c_request_resources()
572 	if (phy->gpio_ena > 0) {  in st21nfca_hci_i2c_request_resources()
573 		r = devm_gpio_request_one(&client->dev, phy->gpio_ena,  in st21nfca_hci_i2c_request_resources()
581 	phy->se_status.is_ese_present = pdata->is_ese_present;  in st21nfca_hci_i2c_request_resources()
582 	phy->se_status.is_uicc_present = pdata->is_uicc_present;  in st21nfca_hci_i2c_request_resources()
590 	struct st21nfca_i2c_phy *phy;  in st21nfca_hci_i2c_probe()  local
602 	phy = devm_kzalloc(&client->dev, sizeof(struct st21nfca_i2c_phy),  in st21nfca_hci_i2c_probe()
604 	if (!phy)  in st21nfca_hci_i2c_probe()
607 	phy->i2c_dev = client;  in st21nfca_hci_i2c_probe()
608 	phy->pending_skb = alloc_skb(ST21NFCA_HCI_LLC_MAX_SIZE * 2, GFP_KERNEL);  in st21nfca_hci_i2c_probe()
609 	if (phy->pending_skb == NULL)  in st21nfca_hci_i2c_probe()
612 	phy->current_read_len = 0;  in st21nfca_hci_i2c_probe()
613 	phy->crc_trials = 0;  in st21nfca_hci_i2c_probe()
614 	mutex_init(&phy->phy_lock);  in st21nfca_hci_i2c_probe()
615 	i2c_set_clientdata(client, phy);  in st21nfca_hci_i2c_probe()
635 	r = st21nfca_hci_platform_init(phy);  in st21nfca_hci_i2c_probe()
643 				phy->irq_polarity | IRQF_ONESHOT,  in st21nfca_hci_i2c_probe()
644 				ST21NFCA_HCI_DRIVER_NAME, phy);  in st21nfca_hci_i2c_probe()
650 	return st21nfca_hci_probe(phy, &i2c_phy_ops, LLC_SHDLC_NAME,  in st21nfca_hci_i2c_probe()
654 					&phy->hdev,  in st21nfca_hci_i2c_probe()
655 					&phy->se_status);  in st21nfca_hci_i2c_probe()
660 	struct st21nfca_i2c_phy *phy = i2c_get_clientdata(client);  in st21nfca_hci_i2c_remove()  local
664 	st21nfca_hci_remove(phy->hdev);  in st21nfca_hci_i2c_remove()
666 	if (phy->powered)  in st21nfca_hci_i2c_remove()
667 		st21nfca_hci_i2c_disable(phy);  in st21nfca_hci_i2c_remove()