203 static void pn544_hci_i2c_platform_init(struct pn544_i2c_phy *phy)  in pn544_hci_i2c_platform_init()  argument
209 	nfc_info(&phy->i2c_dev->dev, "Detecting nfc_en polarity\n");  in pn544_hci_i2c_platform_init()
212 	gpio_set_value_cansleep(phy->gpio_fw, 0);  in pn544_hci_i2c_platform_init()
215 		phy->en_polarity = polarity;  in pn544_hci_i2c_platform_init()
219 			gpio_set_value_cansleep(phy->gpio_en,  in pn544_hci_i2c_platform_init()
220 						!phy->en_polarity);  in pn544_hci_i2c_platform_init()
224 			gpio_set_value_cansleep(phy->gpio_en, phy->en_polarity);  in pn544_hci_i2c_platform_init()
228 			dev_dbg(&phy->i2c_dev->dev, "Sending reset cmd\n");  in pn544_hci_i2c_platform_init()
229 			ret = i2c_master_send(phy->i2c_dev, rset_cmd, count);  in pn544_hci_i2c_platform_init()
231 				nfc_info(&phy->i2c_dev->dev,  in pn544_hci_i2c_platform_init()
239 	nfc_err(&phy->i2c_dev->dev,  in pn544_hci_i2c_platform_init()
243 	gpio_set_value_cansleep(phy->gpio_en, !phy->en_polarity);  in pn544_hci_i2c_platform_init()
246 static void pn544_hci_i2c_enable_mode(struct pn544_i2c_phy *phy, int run_mode)  in pn544_hci_i2c_enable_mode()  argument
248 	gpio_set_value_cansleep(phy->gpio_fw,  in pn544_hci_i2c_enable_mode()
250 	gpio_set_value_cansleep(phy->gpio_en, phy->en_polarity);  in pn544_hci_i2c_enable_mode()
253 	phy->run_mode = run_mode;  in pn544_hci_i2c_enable_mode()
258 	struct pn544_i2c_phy *phy = phy_id;  in pn544_hci_i2c_enable()  local
262 	pn544_hci_i2c_enable_mode(phy, PN544_HCI_MODE);  in pn544_hci_i2c_enable()
264 	phy->powered = 1;  in pn544_hci_i2c_enable()
271 	struct pn544_i2c_phy *phy = phy_id;  in pn544_hci_i2c_disable()  local
273 	gpio_set_value_cansleep(phy->gpio_fw, 0);  in pn544_hci_i2c_disable()
274 	gpio_set_value_cansleep(phy->gpio_en, !phy->en_polarity);  in pn544_hci_i2c_disable()
277 	gpio_set_value_cansleep(phy->gpio_en, phy->en_polarity);  in pn544_hci_i2c_disable()
280 	gpio_set_value_cansleep(phy->gpio_en, !phy->en_polarity);  in pn544_hci_i2c_disable()
283 	phy->powered = 0;  in pn544_hci_i2c_disable()
314 	struct pn544_i2c_phy *phy = phy_id;  in pn544_hci_i2c_write()  local
315 	struct i2c_client *client = phy->i2c_dev;  in pn544_hci_i2c_write()
317 	if (phy->hard_fault != 0)  in pn544_hci_i2c_write()
318 		return phy->hard_fault;  in pn544_hci_i2c_write()
374 static int pn544_hci_i2c_read(struct pn544_i2c_phy *phy, struct sk_buff **skb)  in pn544_hci_i2c_read()  argument
379 	struct i2c_client *client = phy->i2c_dev;  in pn544_hci_i2c_read()
433 static int pn544_hci_i2c_fw_read_status(struct pn544_i2c_phy *phy)  in pn544_hci_i2c_fw_read_status()  argument
437 	struct i2c_client *client = phy->i2c_dev;  in pn544_hci_i2c_fw_read_status()
500 	struct pn544_i2c_phy *phy = phy_id;  in pn544_hci_i2c_irq_thread_fn()  local
505 	if (!phy || irq != phy->i2c_dev->irq) {  in pn544_hci_i2c_irq_thread_fn()
510 	client = phy->i2c_dev;  in pn544_hci_i2c_irq_thread_fn()
513 	if (phy->hard_fault != 0)  in pn544_hci_i2c_irq_thread_fn()
516 	if (phy->run_mode == PN544_FW_MODE) {  in pn544_hci_i2c_irq_thread_fn()
517 		phy->fw_cmd_result = pn544_hci_i2c_fw_read_status(phy);  in pn544_hci_i2c_irq_thread_fn()
518 		schedule_work(&phy->fw_work);  in pn544_hci_i2c_irq_thread_fn()
520 		r = pn544_hci_i2c_read(phy, &skb);  in pn544_hci_i2c_irq_thread_fn()
522 			phy->hard_fault = r;  in pn544_hci_i2c_irq_thread_fn()
524 			nfc_hci_recv_frame(phy->hdev, NULL);  in pn544_hci_i2c_irq_thread_fn()
531 		nfc_hci_recv_frame(phy->hdev, skb);  in pn544_hci_i2c_irq_thread_fn()
545 	struct pn544_i2c_phy *phy = phy_id;  in pn544_hci_i2c_fw_download()  local
549 	strcpy(phy->firmware_name, firmware_name);  in pn544_hci_i2c_fw_download()
551 	phy->hw_variant = hw_variant;  in pn544_hci_i2c_fw_download()
552 	phy->fw_work_state = FW_WORK_STATE_START;  in pn544_hci_i2c_fw_download()
554 	schedule_work(&phy->fw_work);  in pn544_hci_i2c_fw_download()
559 static void pn544_hci_i2c_fw_work_complete(struct pn544_i2c_phy *phy,  in pn544_hci_i2c_fw_work_complete()  argument
564 	pn544_hci_i2c_disable(phy);  in pn544_hci_i2c_fw_work_complete()
566 	phy->fw_work_state = FW_WORK_STATE_IDLE;  in pn544_hci_i2c_fw_work_complete()
568 	if (phy->fw) {  in pn544_hci_i2c_fw_work_complete()
569 		release_firmware(phy->fw);  in pn544_hci_i2c_fw_work_complete()
570 		phy->fw = NULL;  in pn544_hci_i2c_fw_work_complete()
573 	nfc_fw_download_done(phy->hdev->ndev, phy->firmware_name, (u32) -result);  in pn544_hci_i2c_fw_work_complete()
656 static int pn544_hci_i2c_fw_write_chunk(struct pn544_i2c_phy *phy)  in pn544_hci_i2c_fw_write_chunk()  argument
660 	r = pn544_hci_i2c_fw_write_cmd(phy->i2c_dev,  in pn544_hci_i2c_fw_write_chunk()
661 				       phy->fw_blob_dest_addr + phy->fw_written,  in pn544_hci_i2c_fw_write_chunk()
662 				       phy->fw_blob_data + phy->fw_written,  in pn544_hci_i2c_fw_write_chunk()
663 				       phy->fw_blob_size - phy->fw_written);  in pn544_hci_i2c_fw_write_chunk()
667 	phy->fw_written += r;  in pn544_hci_i2c_fw_write_chunk()
668 	phy->fw_work_state = FW_WORK_STATE_WAIT_WRITE_ANSWER;  in pn544_hci_i2c_fw_write_chunk()
673 static int pn544_hci_i2c_fw_secure_write_frame_cmd(struct pn544_i2c_phy *phy,  in pn544_hci_i2c_fw_secure_write_frame_cmd()  argument
694 	r = i2c_master_send(phy->i2c_dev, buf, chunklen);  in pn544_hci_i2c_fw_secure_write_frame_cmd()
705 static int pn544_hci_i2c_fw_secure_write_frame(struct pn544_i2c_phy *phy)  in pn544_hci_i2c_fw_secure_write_frame()  argument
710 	framep = (struct pn544_i2c_fw_secure_frame *) phy->fw_blob_data;  in pn544_hci_i2c_fw_secure_write_frame()
711 	if (phy->fw_written == 0)  in pn544_hci_i2c_fw_secure_write_frame()
712 		phy->fw_blob_size = get_unaligned_be16(&framep->be_datalen)  in pn544_hci_i2c_fw_secure_write_frame()
716 	if (phy->fw_blob_size > PN544_FW_I2C_MAX_PAYLOAD &&  in pn544_hci_i2c_fw_secure_write_frame()
721 	if (phy->fw_blob_size < PN544_FW_I2C_MAX_PAYLOAD) {  in pn544_hci_i2c_fw_secure_write_frame()
722 		r = i2c_master_send(phy->i2c_dev,  in pn544_hci_i2c_fw_secure_write_frame()
723 			(const char *) phy->fw_blob_data, phy->fw_blob_size);  in pn544_hci_i2c_fw_secure_write_frame()
725 		if (r == phy->fw_blob_size)  in pn544_hci_i2c_fw_secure_write_frame()
733 	r = pn544_hci_i2c_fw_secure_write_frame_cmd(phy,  in pn544_hci_i2c_fw_secure_write_frame()
734 				       phy->fw_blob_data + phy->fw_written,  in pn544_hci_i2c_fw_secure_write_frame()
735 				       phy->fw_blob_size - phy->fw_written);  in pn544_hci_i2c_fw_secure_write_frame()
740 	phy->fw_written += r;  in pn544_hci_i2c_fw_secure_write_frame()
741 	phy->fw_work_state = FW_WORK_STATE_WAIT_SECURE_WRITE_ANSWER;  in pn544_hci_i2c_fw_secure_write_frame()
745 		pn544_hci_i2c_enable_mode(phy, PN544_FW_MODE);  in pn544_hci_i2c_fw_secure_write_frame()
746 		phy->fw_cmd_result = 0;  in pn544_hci_i2c_fw_secure_write_frame()
747 		schedule_work(&phy->fw_work);  in pn544_hci_i2c_fw_secure_write_frame()
755 	struct pn544_i2c_phy *phy = container_of(work, struct pn544_i2c_phy,  in pn544_hci_i2c_fw_work()  local
761 	switch (phy->fw_work_state) {  in pn544_hci_i2c_fw_work()
763 		pn544_hci_i2c_enable_mode(phy, PN544_FW_MODE);  in pn544_hci_i2c_fw_work()
765 		r = request_firmware(&phy->fw, phy->firmware_name,  in pn544_hci_i2c_fw_work()
766 				     &phy->i2c_dev->dev);  in pn544_hci_i2c_fw_work()
770 		phy->fw_written = 0;  in pn544_hci_i2c_fw_work()
772 		switch (phy->hw_variant) {  in pn544_hci_i2c_fw_work()
774 			blob = (struct pn544_i2c_fw_blob *) phy->fw->data;  in pn544_hci_i2c_fw_work()
775 			phy->fw_blob_size = get_unaligned_be32(&blob->be_size);  in pn544_hci_i2c_fw_work()
776 			phy->fw_blob_dest_addr = get_unaligned_be32(  in pn544_hci_i2c_fw_work()
778 			phy->fw_blob_data = blob->data;  in pn544_hci_i2c_fw_work()
780 			r = pn544_hci_i2c_fw_write_chunk(phy);  in pn544_hci_i2c_fw_work()
784 								phy->fw->data;  in pn544_hci_i2c_fw_work()
785 			phy->fw_blob_data = secure_blob->data;  in pn544_hci_i2c_fw_work()
786 			phy->fw_size = phy->fw->size;  in pn544_hci_i2c_fw_work()
787 			r = pn544_hci_i2c_fw_secure_write_frame(phy);  in pn544_hci_i2c_fw_work()
796 			pn544_hci_i2c_fw_work_complete(phy, r);  in pn544_hci_i2c_fw_work()
800 		r = phy->fw_cmd_result;  in pn544_hci_i2c_fw_work()
804 		if (phy->fw_written == phy->fw_blob_size) {  in pn544_hci_i2c_fw_work()
805 			r = pn544_hci_i2c_fw_check_cmd(phy->i2c_dev,  in pn544_hci_i2c_fw_work()
806 						       phy->fw_blob_dest_addr,  in pn544_hci_i2c_fw_work()
807 						       phy->fw_blob_data,  in pn544_hci_i2c_fw_work()
808 						       phy->fw_blob_size);  in pn544_hci_i2c_fw_work()
811 			phy->fw_work_state = FW_WORK_STATE_WAIT_CHECK_ANSWER;  in pn544_hci_i2c_fw_work()
815 		r = pn544_hci_i2c_fw_write_chunk(phy);  in pn544_hci_i2c_fw_work()
819 			pn544_hci_i2c_fw_work_complete(phy, r);  in pn544_hci_i2c_fw_work()
823 		r = phy->fw_cmd_result;  in pn544_hci_i2c_fw_work()
827 		blob = (struct pn544_i2c_fw_blob *) (phy->fw_blob_data +  in pn544_hci_i2c_fw_work()
828 		       phy->fw_blob_size);  in pn544_hci_i2c_fw_work()
829 		phy->fw_blob_size = get_unaligned_be32(&blob->be_size);  in pn544_hci_i2c_fw_work()
830 		if (phy->fw_blob_size != 0) {  in pn544_hci_i2c_fw_work()
831 			phy->fw_blob_dest_addr =  in pn544_hci_i2c_fw_work()
833 			phy->fw_blob_data = blob->data;  in pn544_hci_i2c_fw_work()
835 			phy->fw_written = 0;  in pn544_hci_i2c_fw_work()
836 			r = pn544_hci_i2c_fw_write_chunk(phy);  in pn544_hci_i2c_fw_work()
840 		if (r < 0 || phy->fw_blob_size == 0)  in pn544_hci_i2c_fw_work()
841 			pn544_hci_i2c_fw_work_complete(phy, r);  in pn544_hci_i2c_fw_work()
845 		r = phy->fw_cmd_result;  in pn544_hci_i2c_fw_work()
850 			r = pn544_hci_i2c_fw_secure_write_frame(phy);  in pn544_hci_i2c_fw_work()
854 		if (phy->fw_written == phy->fw_blob_size) {  in pn544_hci_i2c_fw_work()
856 				(phy->fw_blob_data + phy->fw_blob_size);  in pn544_hci_i2c_fw_work()
857 			phy->fw_size -= phy->fw_blob_size +  in pn544_hci_i2c_fw_work()
859 			if (phy->fw_size >= PN544_FW_SECURE_BLOB_HEADER_LEN  in pn544_hci_i2c_fw_work()
861 				phy->fw_blob_data = secure_blob->data;  in pn544_hci_i2c_fw_work()
863 				phy->fw_written = 0;  in pn544_hci_i2c_fw_work()
864 				r = pn544_hci_i2c_fw_secure_write_frame(phy);  in pn544_hci_i2c_fw_work()
869 		if (r < 0 || phy->fw_size == 0)  in pn544_hci_i2c_fw_work()
870 			pn544_hci_i2c_fw_work_complete(phy, r);  in pn544_hci_i2c_fw_work()
880 	struct pn544_i2c_phy *phy = i2c_get_clientdata(client);  in pn544_hci_i2c_acpi_request_resources()  local
905 	phy->gpio_en  = desc_to_gpio(gpiod_en);  in pn544_hci_i2c_acpi_request_resources()
922 	phy->gpio_fw  = desc_to_gpio(gpiod_fw);  in pn544_hci_i2c_acpi_request_resources()
939 	phy->gpio_irq = desc_to_gpio(gpiod_irq);  in pn544_hci_i2c_acpi_request_resources()
966 	struct pn544_i2c_phy *phy = i2c_get_clientdata(client);  in pn544_hci_i2c_of_request_resources()  local
984 	phy->gpio_en = ret;  in pn544_hci_i2c_of_request_resources()
987 	ret = gpio_request(phy->gpio_en, PN544_GPIO_NAME_EN);  in pn544_hci_i2c_of_request_resources()
992 	ret = gpio_direction_output(phy->gpio_en, 0);  in pn544_hci_i2c_of_request_resources()
1006 	phy->gpio_fw = ret;  in pn544_hci_i2c_of_request_resources()
1009 	ret = gpio_request(phy->gpio_fw, PN544_GPIO_NAME_FW);  in pn544_hci_i2c_of_request_resources()
1014 	ret = gpio_direction_output(phy->gpio_fw, 0);  in pn544_hci_i2c_of_request_resources()
1032 	gpio_free(phy->gpio_fw);  in pn544_hci_i2c_of_request_resources()
1034 	gpio_free(phy->gpio_en);  in pn544_hci_i2c_of_request_resources()
1051 	struct pn544_i2c_phy *phy;  in pn544_hci_i2c_probe()  local
1063 	phy = devm_kzalloc(&client->dev, sizeof(struct pn544_i2c_phy),  in pn544_hci_i2c_probe()
1065 	if (!phy)  in pn544_hci_i2c_probe()
1068 	INIT_WORK(&phy->fw_work, pn544_hci_i2c_fw_work);  in pn544_hci_i2c_probe()
1069 	phy->fw_work_state = FW_WORK_STATE_IDLE;  in pn544_hci_i2c_probe()
1071 	phy->i2c_dev = client;  in pn544_hci_i2c_probe()
1072 	i2c_set_clientdata(client, phy);  in pn544_hci_i2c_probe()
1098 		phy->gpio_en = pdata->get_gpio(NFC_GPIO_ENABLE);  in pn544_hci_i2c_probe()
1099 		phy->gpio_fw = pdata->get_gpio(NFC_GPIO_FW_RESET);  in pn544_hci_i2c_probe()
1100 		phy->gpio_irq = pdata->get_gpio(NFC_GPIO_IRQ);  in pn544_hci_i2c_probe()
1114 	pn544_hci_i2c_platform_init(phy);  in pn544_hci_i2c_probe()
1118 				 PN544_HCI_I2C_DRIVER_NAME, phy);  in pn544_hci_i2c_probe()
1124 	r = pn544_hci_probe(phy, &i2c_phy_ops, LLC_SHDLC_NAME,  in pn544_hci_i2c_probe()
1127 			    pn544_hci_i2c_fw_download, &phy->hdev);  in pn544_hci_i2c_probe()
1134 	free_irq(client->irq, phy);  in pn544_hci_i2c_probe()
1138 		gpio_free(phy->gpio_en);  in pn544_hci_i2c_probe()
1139 		gpio_free(phy->gpio_fw);  in pn544_hci_i2c_probe()
1149 	struct pn544_i2c_phy *phy = i2c_get_clientdata(client);  in pn544_hci_i2c_remove()  local
1154 	cancel_work_sync(&phy->fw_work);  in pn544_hci_i2c_remove()
1155 	if (phy->fw_work_state != FW_WORK_STATE_IDLE)  in pn544_hci_i2c_remove()
1156 		pn544_hci_i2c_fw_work_complete(phy, -ENODEV);  in pn544_hci_i2c_remove()
1158 	pn544_hci_remove(phy->hdev);  in pn544_hci_i2c_remove()
1160 	if (phy->powered)  in pn544_hci_i2c_remove()
1161 		pn544_hci_i2c_disable(phy);  in pn544_hci_i2c_remove()
1163 	free_irq(client->irq, phy);  in pn544_hci_i2c_remove()
1167 		gpio_free(phy->gpio_en);  in pn544_hci_i2c_remove()
1168 		gpio_free(phy->gpio_fw);  in pn544_hci_i2c_remove()