192 static void ljca_handle_event(struct ljca_adapter *adap,  in ljca_handle_event()  argument
197 	list_for_each_entry(client, &adap->client_list, link) {  in ljca_handle_event()
217 static void ljca_handle_cmd_ack(struct ljca_adapter *adap, struct ljca_msg *header)  in ljca_handle_cmd_ack()  argument
219 	struct ljca_msg *tx_header = adap->tx_buf;  in ljca_handle_cmd_ack()
224 	spin_lock_irqsave(&adap->lock, flags);  in ljca_handle_cmd_ack()
227 		spin_unlock_irqrestore(&adap->lock, flags);  in ljca_handle_cmd_ack()
228 		dev_err(adap->dev, "cmd ack mismatch error\n");  in ljca_handle_cmd_ack()
232 	ibuf_len = adap->ex_buf_len;  in ljca_handle_cmd_ack()
233 	ibuf = adap->ex_buf;  in ljca_handle_cmd_ack()
242 	adap->actual_length = actual_len;  in ljca_handle_cmd_ack()
244 	spin_unlock_irqrestore(&adap->lock, flags);  in ljca_handle_cmd_ack()
246 	complete(&adap->cmd_completion);  in ljca_handle_cmd_ack()
252 	struct ljca_adapter *adap = urb->context;  in ljca_recv()  local
264 		if (adap->disconnect)  in ljca_recv()
265 			complete(&adap->cmd_completion);  in ljca_recv()
271 		dev_dbg(adap->dev, "rx urb terminated with status: %d\n",  in ljca_recv()
275 		dev_dbg(adap->dev, "rx urb error: %d\n", urb->status);  in ljca_recv()
283 		ljca_handle_cmd_ack(adap, header);  in ljca_recv()
285 		ljca_handle_event(adap, header);  in ljca_recv()
290 		dev_err(adap->dev, "resubmit rx urb error %d\n", ret);  in ljca_recv()
293 static int ljca_send(struct ljca_adapter *adap, u8 type, u8 cmd,  in ljca_send()  argument
298 	struct ljca_msg *header = adap->tx_buf;  in ljca_send()
303 	if (adap->disconnect)  in ljca_send()
306 	if (msg_len > adap->tx_buf_len)  in ljca_send()
309 	mutex_lock(&adap->mutex);  in ljca_send()
311 	spin_lock_irqsave(&adap->lock, flags);  in ljca_send()
321 	adap->ex_buf = ibuf;  in ljca_send()
322 	adap->ex_buf_len = ibuf_len;  in ljca_send()
323 	adap->actual_length = 0;  in ljca_send()
325 	spin_unlock_irqrestore(&adap->lock, flags);  in ljca_send()
327 	reinit_completion(&adap->cmd_completion);  in ljca_send()
329 	ret = usb_autopm_get_interface(adap->intf);  in ljca_send()
333 	ret = usb_bulk_msg(adap->usb_dev, adap->tx_pipe, header,  in ljca_send()
343 		ret = wait_for_completion_timeout(&adap->cmd_completion,  in ljca_send()
350 	ret = adap->actual_length;  in ljca_send()
353 	usb_autopm_put_interface(adap->intf);  in ljca_send()
356 	spin_lock_irqsave(&adap->lock, flags);  in ljca_send()
357 	adap->ex_buf = NULL;  in ljca_send()
358 	adap->ex_buf_len = 0;  in ljca_send()
361 	spin_unlock_irqrestore(&adap->lock, flags);  in ljca_send()
363 	mutex_unlock(&adap->mutex);  in ljca_send()
456 static void ljca_auxdev_acpi_bind(struct ljca_adapter *adap,  in ljca_auxdev_acpi_bind()  argument
461 	struct device *dev = adap->dev;  in ljca_auxdev_acpi_bind()
514 static int ljca_new_client_device(struct ljca_adapter *adap, u8 type, u8 id,  in ljca_new_client_device()  argument
529 	client->adapter = adap;  in ljca_new_client_device()
536 	auxdev->dev.parent = adap->dev;  in ljca_new_client_device()
546 	ljca_auxdev_acpi_bind(adap, auxdev, adr, id);  in ljca_new_client_device()
552 	list_add_tail(&client->link, &adap->client_list);  in ljca_new_client_device()
565 static int ljca_enumerate_gpio(struct ljca_adapter *adap)  in ljca_enumerate_gpio()  argument
574 	ret = ljca_send(adap, LJCA_CLIENT_MNG, LJCA_MNG_ENUM_GPIO, NULL, 0, buf,  in ljca_enumerate_gpio()
598 	return ljca_new_client_device(adap, LJCA_CLIENT_GPIO, 0, "ljca-gpio",  in ljca_enumerate_gpio()
602 static int ljca_enumerate_i2c(struct ljca_adapter *adap)  in ljca_enumerate_i2c()  argument
610 	ret = ljca_send(adap, LJCA_CLIENT_MNG, LJCA_MNG_ENUM_I2C, NULL, 0, buf,  in ljca_enumerate_i2c()
630 		ret = ljca_new_client_device(adap, LJCA_CLIENT_I2C, i,  in ljca_enumerate_i2c()
640 static int ljca_enumerate_spi(struct ljca_adapter *adap)  in ljca_enumerate_spi()  argument
649 	ret = ljca_send(adap, LJCA_CLIENT_MNG, LJCA_MNG_ENUM_SPI, NULL, 0, buf,  in ljca_enumerate_spi()
668 		ret = ljca_new_client_device(adap, LJCA_CLIENT_SPI, i,  in ljca_enumerate_spi()
678 static int ljca_reset_handshake(struct ljca_adapter *adap)  in ljca_reset_handshake()  argument
680 	__le32 reset_id = cpu_to_le32(adap->reset_id);  in ljca_reset_handshake()
684 	adap->reset_id++;  in ljca_reset_handshake()
686 	ret = ljca_send(adap, LJCA_CLIENT_MNG, LJCA_MNG_RESET, (u8 *)&reset_id,  in ljca_reset_handshake()
698 static int ljca_enumerate_clients(struct ljca_adapter *adap)  in ljca_enumerate_clients()  argument
703 	ret = ljca_reset_handshake(adap);  in ljca_enumerate_clients()
707 	ret = ljca_enumerate_gpio(adap);  in ljca_enumerate_clients()
709 		dev_err(adap->dev, "enumerate GPIO error\n");  in ljca_enumerate_clients()
713 	ret = ljca_enumerate_i2c(adap);  in ljca_enumerate_clients()
715 		dev_err(adap->dev, "enumerate I2C error\n");  in ljca_enumerate_clients()
719 	ret = ljca_enumerate_spi(adap);  in ljca_enumerate_clients()
721 		dev_err(adap->dev, "enumerate SPI error\n");  in ljca_enumerate_clients()
728 	adap->disconnect = true;  in ljca_enumerate_clients()
730 	usb_kill_urb(adap->rx_urb);  in ljca_enumerate_clients()
732 	list_for_each_entry_safe_reverse(client, next, &adap->client_list, link) {  in ljca_enumerate_clients()
750 	struct ljca_adapter *adap;  in ljca_probe()  local
753 	adap = devm_kzalloc(dev, sizeof(*adap), GFP_KERNEL);  in ljca_probe()
754 	if (!adap)  in ljca_probe()
758 	adap->tx_buf = devm_kzalloc(dev, LJCA_MAX_PACKET_SIZE, GFP_KERNEL);  in ljca_probe()
759 	if (!adap->tx_buf)  in ljca_probe()
761 	adap->tx_buf_len = LJCA_MAX_PACKET_SIZE;  in ljca_probe()
763 	mutex_init(&adap->mutex);  in ljca_probe()
764 	spin_lock_init(&adap->lock);  in ljca_probe()
765 	init_completion(&adap->cmd_completion);  in ljca_probe()
766 	INIT_LIST_HEAD(&adap->client_list);  in ljca_probe()
768 	adap->intf = usb_get_intf(interface);  in ljca_probe()
769 	adap->usb_dev = usb_dev;  in ljca_probe()
770 	adap->dev = dev;  in ljca_probe()
781 	adap->rx_pipe = usb_rcvbulkpipe(usb_dev, usb_endpoint_num(ep_in));  in ljca_probe()
782 	adap->tx_pipe = usb_sndbulkpipe(usb_dev, usb_endpoint_num(ep_out));  in ljca_probe()
785 	adap->rx_len = usb_endpoint_maxp(ep_in);  in ljca_probe()
786 	adap->rx_buf = devm_kzalloc(dev, adap->rx_len, GFP_KERNEL);  in ljca_probe()
787 	if (!adap->rx_buf) {  in ljca_probe()
793 	adap->rx_urb = usb_alloc_urb(0, GFP_KERNEL);  in ljca_probe()
794 	if (!adap->rx_urb) {  in ljca_probe()
798 	usb_fill_bulk_urb(adap->rx_urb, usb_dev, adap->rx_pipe,  in ljca_probe()
799 			  adap->rx_buf, adap->rx_len, ljca_recv, adap);  in ljca_probe()
801 	usb_set_intfdata(interface, adap);  in ljca_probe()
804 	ret = usb_submit_urb(adap->rx_urb, GFP_KERNEL);  in ljca_probe()
810 	ret = ljca_enumerate_clients(adap);  in ljca_probe()
827 	usb_free_urb(adap->rx_urb);  in ljca_probe()
830 	usb_put_intf(adap->intf);  in ljca_probe()
832 	mutex_destroy(&adap->mutex);  in ljca_probe()
839 	struct ljca_adapter *adap = usb_get_intfdata(interface);  in ljca_disconnect()  local
842 	adap->disconnect = true;  in ljca_disconnect()
844 	usb_kill_urb(adap->rx_urb);  in ljca_disconnect()
846 	list_for_each_entry_safe_reverse(client, next, &adap->client_list, link) {  in ljca_disconnect()
854 	usb_free_urb(adap->rx_urb);  in ljca_disconnect()
856 	usb_put_intf(adap->intf);  in ljca_disconnect()
858 	mutex_destroy(&adap->mutex);  in ljca_disconnect()
863 	struct ljca_adapter *adap = usb_get_intfdata(interface);  in ljca_suspend()  local
865 	usb_kill_urb(adap->rx_urb);  in ljca_suspend()
872 	struct ljca_adapter *adap = usb_get_intfdata(interface);  in ljca_resume()  local
874 	return usb_submit_urb(adap->rx_urb, GFP_KERNEL);  in ljca_resume()