usb/serial/mxuport.c

8  *	Supports the following Moxa USB to serial converters:
19 #include <linux/serial.h>
27 #include <linux/usb/serial.h>
105 /* Definitions for serial event type */
212 static int mxuport_recv_ctrl_urb(struct usb_serial *serial,
218 	status = usb_control_msg(serial->dev,
219 				 usb_rcvctrlpipe(serial->dev, 0),
226 		dev_err(&serial->interface->dev,
233 		dev_err(&serial->interface->dev,
243 static int mxuport_send_ctrl_data_urb(struct usb_serial *serial,
250 	status = usb_control_msg(serial->dev,
251 				 usb_sndctrlpipe(serial->dev, 0),
258 		dev_err(&serial->interface->dev,
268 static int mxuport_send_ctrl_urb(struct usb_serial *serial,
271 	return mxuport_send_ctrl_data_urb(serial, request, value, index,
287 	struct usb_serial *serial = port->serial;
291 	mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_RX_HOST_EN,
306 	struct usb_serial *serial = port->serial;
310 	mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_RX_HOST_EN,
466 	struct usb_serial *serial = port->serial;
482 		if (rcv_port >= serial->num_ports) {
488 		demux_port = serial->port[rcv_port];
513 	struct usb_serial *serial = port->serial;
529 		if (rcv_port >= serial->num_ports) {
535 		demux_port = serial->port[rcv_port];
552  * contain serial data or events.
557 	struct usb_serial *serial = port->serial;
559 	if (port == serial->port[0])
562 	if (port == serial->port[1])
572 	struct usb_serial *serial = port->serial;
582 	err = mxuport_recv_ctrl_urb(serial, RQ_VENDOR_GET_OUTQUEUE, 0,
600 	struct usb_serial *serial = port->serial;
605 	err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_MCR,
616 	struct usb_serial *serial = port->serial;
621 	err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_DTR,
638 	struct usb_serial *serial = port->serial;
666 	err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_RTS,
765 				    struct usb_serial *serial)
784 		err = mxuport_send_ctrl_data_urb(serial, RQ_VENDOR_SET_CHARS,
796 	err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_XONXOFF,
839 	struct usb_serial *serial = port->serial;
903 	err = mxuport_send_ctrl_data_urb(serial, RQ_VENDOR_SET_LINE,
908 	err = mxuport_set_termios_flow(tty, old_termios, port, serial);
919 	err = mxuport_send_ctrl_data_urb(serial, RQ_VENDOR_SET_BAUD,
938 static int mxuport_calc_num_ports(struct usb_serial *serial,
941 	unsigned long features = (unsigned long)usb_get_serial_data(serial);
954 		dev_warn(&serial->interface->dev,
974 static int mxuport_get_fw_version(struct usb_serial *serial, u32 *version)
984 	err = mxuport_recv_ctrl_urb(serial, RQ_VENDOR_GET_VERSION, 0, 0,
999 static int mxuport_download_fw(struct usb_serial *serial,
1011 	dev_dbg(&serial->interface->dev, "Starting firmware download...\n");
1012 	err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_START_FW_DOWN, 0, 0);
1021 		err = mxuport_send_ctrl_data_urb(serial, RQ_VENDOR_FW_DATA,
1024 			mxuport_send_ctrl_urb(serial, RQ_VENDOR_STOP_FW_DOWN,
1035 	err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_STOP_FW_DOWN, 0, 0);
1040 	err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_QUERY_FW_READY, 0, 0);
1047 static int mxuport_probe(struct usb_serial *serial,
1050 	u16 productid = le16_to_cpu(serial->dev->descriptor.idProduct);
1058 	err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_QUERY_FW_CONFIG, 0, 0);
1060 		mxuport_send_ctrl_urb(serial, RQ_VENDOR_RESET_DEVICE, 0, 0);
1064 	err = mxuport_get_fw_version(serial, &version);
1068 	dev_dbg(&serial->interface->dev, "Device firmware version v%x.%x.%x\n",
1075 	err = request_firmware(&fw_p, buf, &serial->interface->dev);
1077 		dev_warn(&serial->interface->dev, "Firmware %s not found\n",
1086 		dev_dbg(&serial->interface->dev,
1091 			err = mxuport_download_fw(serial, fw_p);
1094 			err  = mxuport_get_fw_version(serial, &version);
1100 	dev_info(&serial->interface->dev,
1110 	usb_set_serial_data(serial, (void *)id->driver_info);
1120 	struct usb_serial *serial = port->serial;
1136 	err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_FIFO_DISABLE,
1142 	err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_HIGH_PERFOR,
1148 	return mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_INTERFACE,
1153 static int mxuport_attach(struct usb_serial *serial)
1155 	struct usb_serial_port *port0 = serial->port[0];
1156 	struct usb_serial_port *port1 = serial->port[1];
1179 static void mxuport_release(struct usb_serial *serial)
1181 	struct usb_serial_port *port0 = serial->port[0];
1182 	struct usb_serial_port *port1 = serial->port[1];
1191 	struct usb_serial *serial = port->serial;
1195 	err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_RX_HOST_EN,
1200 	err = mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_OPEN,
1203 		mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_RX_HOST_EN,
1223 	struct usb_serial *serial = port->serial;
1225 	mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_OPEN, 0,
1228 	mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_RX_HOST_EN, 0,
1236 	struct usb_serial *serial = port->serial;
1247 	return mxuport_send_ctrl_urb(serial, RQ_VENDOR_SET_BREAK,
1251 static int mxuport_resume(struct usb_serial *serial)
1259 		port = serial->port[i];
1266 	for (i = 0; i < serial->num_ports; i++) {
1267 		port = serial->port[i];