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path: root/drivers/usb/serial/pl2303.c
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Diffstat (limited to 'drivers/usb/serial/pl2303.c')
-rw-r--r--drivers/usb/serial/pl2303.c117
1 files changed, 58 insertions, 59 deletions
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index 2af778555bdc..c605fb68f807 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -410,7 +410,7 @@ static int set_control_lines(struct usb_device *dev, u8 value)
 	retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
 				 SET_CONTROL_REQUEST, SET_CONTROL_REQUEST_TYPE,
 				 value, 0, NULL, 0, 100);
-	dbg("%s - value = %d, retval = %d", __FUNCTION__, value, retval);
+	dbg("%s - value = %d, retval = %d", __func__, value, retval);
 	return retval;
 }
 
@@ -420,7 +420,7 @@ static void pl2303_send(struct usb_serial_port *port)
 	struct pl2303_private *priv = usb_get_serial_port_data(port);
 	unsigned long flags;
 
-	dbg("%s - port %d", __FUNCTION__, port->number);
+	dbg("%s - port %d", __func__, port->number);
 
 	spin_lock_irqsave(&priv->lock, flags);
 
@@ -441,7 +441,7 @@ static void pl2303_send(struct usb_serial_port *port)
 
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	usb_serial_debug_data(debug, &port->dev, __FUNCTION__, count,
+	usb_serial_debug_data(debug, &port->dev, __func__, count,
 			      port->write_urb->transfer_buffer);
 
 	port->write_urb->transfer_buffer_length = count;
@@ -449,7 +449,7 @@ static void pl2303_send(struct usb_serial_port *port)
 	result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
 	if (result) {
 		dev_err(&port->dev, "%s - failed submitting write urb,"
-			" error %d\n", __FUNCTION__, result);
+			" error %d\n", __func__, result);
 		priv->write_urb_in_use = 0;
 		// TODO: reschedule pl2303_send
 	}
@@ -463,7 +463,7 @@ static int pl2303_write(struct usb_serial_port *port, const unsigned char *buf,
 	struct pl2303_private *priv = usb_get_serial_port_data(port);
 	unsigned long flags;
 
-	dbg("%s - port %d, %d bytes", __FUNCTION__, port->number, count);
+	dbg("%s - port %d, %d bytes", __func__, port->number, count);
 
 	if (!count)
 		return count;
@@ -483,13 +483,13 @@ static int pl2303_write_room(struct usb_serial_port *port)
 	int room = 0;
 	unsigned long flags;
 
-	dbg("%s - port %d", __FUNCTION__, port->number);
+	dbg("%s - port %d", __func__, port->number);
 
 	spin_lock_irqsave(&priv->lock, flags);
 	room = pl2303_buf_space_avail(priv->buf);
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	dbg("%s - returns %d", __FUNCTION__, room);
+	dbg("%s - returns %d", __func__, room);
 	return room;
 }
 
@@ -499,13 +499,13 @@ static int pl2303_chars_in_buffer(struct usb_serial_port *port)
 	int chars = 0;
 	unsigned long flags;
 
-	dbg("%s - port %d", __FUNCTION__, port->number);
+	dbg("%s - port %d", __func__, port->number);
 
 	spin_lock_irqsave(&priv->lock, flags);
 	chars = pl2303_buf_data_avail(priv->buf);
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	dbg("%s - returns %d", __FUNCTION__, chars);
+	dbg("%s - returns %d", __func__, chars);
 	return chars;
 }
 
@@ -521,7 +521,7 @@ static void pl2303_set_termios(struct usb_serial_port *port,
 	int i;
 	u8 control;
 
-	dbg("%s -  port %d", __FUNCTION__, port->number);
+	dbg("%s -  port %d", __func__, port->number);
 
 	spin_lock_irqsave(&priv->lock, flags);
 	if (!priv->termios_initialized) {
@@ -545,7 +545,9 @@ static void pl2303_set_termios(struct usb_serial_port *port,
 
 	buf = kzalloc(7, GFP_KERNEL);
 	if (!buf) {
-		dev_err(&port->dev, "%s - out of memory.\n", __FUNCTION__);
+		dev_err(&port->dev, "%s - out of memory.\n", __func__);
+		/* Report back no change occurred */
+		*port->tty->termios = *old_termios;
 		return;
 	}
 
@@ -563,11 +565,11 @@ static void pl2303_set_termios(struct usb_serial_port *port,
 			default:
 			case CS8:	buf[6] = 8;	break;
 		}
-		dbg("%s - data bits = %d", __FUNCTION__, buf[6]);
+		dbg("%s - data bits = %d", __func__, buf[6]);
 	}
 
 	baud = tty_get_baud_rate(port->tty);;
-	dbg("%s - baud = %d", __FUNCTION__, baud);
+	dbg("%s - baud = %d", __func__, baud);
 	if (baud) {
 		buf[0] = baud & 0xff;
 		buf[1] = (baud >> 8) & 0xff;
@@ -580,10 +582,10 @@ static void pl2303_set_termios(struct usb_serial_port *port,
 	/* For reference buf[4]=2 is 2 stop bits */
 	if (cflag & CSTOPB) {
 		buf[4] = 2;
-		dbg("%s - stop bits = 2", __FUNCTION__);
+		dbg("%s - stop bits = 2", __func__);
 	} else {
 		buf[4] = 0;
-		dbg("%s - stop bits = 1", __FUNCTION__);
+		dbg("%s - stop bits = 1", __func__);
 	}
 
 	if (cflag & PARENB) {
@@ -594,14 +596,14 @@ static void pl2303_set_termios(struct usb_serial_port *port,
 		/* For reference buf[5]=4 is space parity */
 		if (cflag & PARODD) {
 			buf[5] = 1;
-			dbg("%s - parity = odd", __FUNCTION__);
+			dbg("%s - parity = odd", __func__);
 		} else {
 			buf[5] = 2;
-			dbg("%s - parity = even", __FUNCTION__);
+			dbg("%s - parity = even", __func__);
 		}
 	} else {
 		buf[5] = 0;
-		dbg("%s - parity = none", __FUNCTION__);
+		dbg("%s - parity = none", __func__);
 	}
 
 	i = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
@@ -657,7 +659,7 @@ static void pl2303_close(struct usb_serial_port *port, struct file *filp)
 	long timeout;
 	wait_queue_t wait;
 
-	dbg("%s - port %d", __FUNCTION__, port->number);
+	dbg("%s - port %d", __func__, port->number);
 
 	/* wait for data to drain from the buffer */
 	spin_lock_irqsave(&priv->lock, flags);
@@ -695,7 +697,7 @@ static void pl2303_close(struct usb_serial_port *port, struct file *filp)
 	schedule_timeout_interruptible(timeout);
 
 	/* shutdown our urbs */
-	dbg("%s - shutting down urbs", __FUNCTION__);
+	dbg("%s - shutting down urbs", __func__);
 	usb_kill_urb(port->write_urb);
 	usb_kill_urb(port->read_urb);
 	usb_kill_urb(port->interrupt_in_urb);
@@ -719,7 +721,7 @@ static int pl2303_open(struct usb_serial_port *port, struct file *filp)
 	struct pl2303_private *priv = usb_get_serial_port_data(port);
 	int result;
 
-	dbg("%s -  port %d", __FUNCTION__, port->number);
+	dbg("%s -  port %d", __func__, port->number);
 
 	if (priv->type != HX) {
 		usb_clear_halt(serial->dev, port->write_urb->pipe);
@@ -737,22 +739,22 @@ static int pl2303_open(struct usb_serial_port *port, struct file *filp)
 
 	//FIXME: need to assert RTS and DTR if CRTSCTS off
 
-	dbg("%s - submitting read urb", __FUNCTION__);
+	dbg("%s - submitting read urb", __func__);
 	port->read_urb->dev = serial->dev;
 	result = usb_submit_urb(port->read_urb, GFP_KERNEL);
 	if (result) {
 		dev_err(&port->dev, "%s - failed submitting read urb,"
-			" error %d\n", __FUNCTION__, result);
+			" error %d\n", __func__, result);
 		pl2303_close(port, NULL);
 		return -EPROTO;
 	}
 
-	dbg("%s - submitting interrupt urb", __FUNCTION__);
+	dbg("%s - submitting interrupt urb", __func__);
 	port->interrupt_in_urb->dev = serial->dev;
 	result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 	if (result) {
 		dev_err(&port->dev, "%s - failed submitting interrupt urb,"
-			" error %d\n", __FUNCTION__, result);
+			" error %d\n", __func__, result);
 		pl2303_close(port, NULL);
 		return -EPROTO;
 	}
@@ -792,7 +794,7 @@ static int pl2303_tiocmget(struct usb_serial_port *port, struct file *file)
 	unsigned int status;
 	unsigned int result;
 
-	dbg("%s (%d)", __FUNCTION__, port->number);
+	dbg("%s (%d)", __func__, port->number);
 
 	if (!usb_get_intfdata(port->serial->interface))
 		return -ENODEV;
@@ -809,7 +811,7 @@ static int pl2303_tiocmget(struct usb_serial_port *port, struct file *file)
 		  | ((status & UART_RING)	? TIOCM_RI  : 0)
 		  | ((status & UART_DCD)	? TIOCM_CD  : 0);
 
-	dbg("%s - result = %x", __FUNCTION__, result);
+	dbg("%s - result = %x", __func__, result);
 
 	return result;
 }
@@ -853,15 +855,15 @@ static int wait_modem_info(struct usb_serial_port *port, unsigned int arg)
 static int pl2303_ioctl(struct usb_serial_port *port, struct file *file,
 			unsigned int cmd, unsigned long arg)
 {
-	dbg("%s (%d) cmd = 0x%04x", __FUNCTION__, port->number, cmd);
+	dbg("%s (%d) cmd = 0x%04x", __func__, port->number, cmd);
 
 	switch (cmd) {
 		case TIOCMIWAIT:
-			dbg("%s (%d) TIOCMIWAIT", __FUNCTION__,  port->number);
+			dbg("%s (%d) TIOCMIWAIT", __func__,  port->number);
 			return wait_modem_info(port, arg);
 
 		default:
-			dbg("%s not supported = 0x%04x", __FUNCTION__, cmd);
+			dbg("%s not supported = 0x%04x", __func__, cmd);
 			break;
 	}
 
@@ -874,19 +876,19 @@ static void pl2303_break_ctl(struct usb_serial_port *port, int break_state)
 	u16 state;
 	int result;
 
-	dbg("%s - port %d", __FUNCTION__, port->number);
+	dbg("%s - port %d", __func__, port->number);
 
 	if (break_state == 0)
 		state = BREAK_OFF;
 	else
 		state = BREAK_ON;
-	dbg("%s - turning break %s", __FUNCTION__, state==BREAK_OFF ? "off" : "on");
+	dbg("%s - turning break %s", __func__, state==BREAK_OFF ? "off" : "on");
 
 	result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
 				 BREAK_REQUEST, BREAK_REQUEST_TYPE, state,
 				 0, NULL, 0, 100);
 	if (result)
-		dbg("%s - error sending break = %d", __FUNCTION__, result);
+		dbg("%s - error sending break = %d", __func__, result);
 }
 
 static void pl2303_shutdown(struct usb_serial *serial)
@@ -894,7 +896,7 @@ static void pl2303_shutdown(struct usb_serial *serial)
 	int i;
 	struct pl2303_private *priv;
 
-	dbg("%s", __FUNCTION__);
+	dbg("%s", __func__);
 
 	for (i = 0; i < serial->num_ports; ++i) {
 		priv = usb_get_serial_port_data(serial->port[i]);
@@ -943,13 +945,13 @@ static void pl2303_update_line_status(struct usb_serial_port *port,
 
 static void pl2303_read_int_callback(struct urb *urb)
 {
-	struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
+	struct usb_serial_port *port =  urb->context;
 	unsigned char *data = urb->transfer_buffer;
 	unsigned int actual_length = urb->actual_length;
 	int status = urb->status;
 	int retval;
 
-	dbg("%s (%d)", __FUNCTION__, port->number);
+	dbg("%s (%d)", __func__, port->number);
 
 	switch (status) {
 	case 0:
@@ -959,16 +961,16 @@ static void pl2303_read_int_callback(struct urb *urb)
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* this urb is terminated, clean up */
-		dbg("%s - urb shutting down with status: %d", __FUNCTION__,
+		dbg("%s - urb shutting down with status: %d", __func__,
 		    status);
 		return;
 	default:
-		dbg("%s - nonzero urb status received: %d", __FUNCTION__,
+		dbg("%s - nonzero urb status received: %d", __func__,
 		    status);
 		goto exit;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __FUNCTION__,
+	usb_serial_debug_data(debug, &port->dev, __func__,
 			      urb->actual_length, urb->transfer_buffer);
 
 	pl2303_update_line_status(port, data, actual_length);
@@ -978,12 +980,12 @@ exit:
 	if (retval)
 		dev_err(&urb->dev->dev,
 			"%s - usb_submit_urb failed with result %d\n",
-			__FUNCTION__, retval);
+			__func__, retval);
 }
 
 static void pl2303_read_bulk_callback(struct urb *urb)
 {
-	struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
+	struct usb_serial_port *port =  urb->context;
 	struct pl2303_private *priv = usb_get_serial_port_data(port);
 	struct tty_struct *tty;
 	unsigned char *data = urb->transfer_buffer;
@@ -994,32 +996,32 @@ static void pl2303_read_bulk_callback(struct urb *urb)
 	u8 line_status;
 	char tty_flag;
 
-	dbg("%s - port %d", __FUNCTION__, port->number);
+	dbg("%s - port %d", __func__, port->number);
 
 	if (status) {
-		dbg("%s - urb status = %d", __FUNCTION__, status);
+		dbg("%s - urb status = %d", __func__, status);
 		if (!port->open_count) {
-			dbg("%s - port is closed, exiting.", __FUNCTION__);
+			dbg("%s - port is closed, exiting.", __func__);
 			return;
 		}
 		if (status == -EPROTO) {
 			/* PL2303 mysteriously fails with -EPROTO reschedule
 			 * the read */
 			dbg("%s - caught -EPROTO, resubmitting the urb",
-			    __FUNCTION__);
+			    __func__);
 			urb->dev = port->serial->dev;
 			result = usb_submit_urb(urb, GFP_ATOMIC);
 			if (result)
 				dev_err(&urb->dev->dev, "%s - failed"
 					" resubmitting read urb, error %d\n",
-					__FUNCTION__, result);
+					__func__, result);
 			return;
 		}
-		dbg("%s - unable to handle the error, exiting.", __FUNCTION__);
+		dbg("%s - unable to handle the error, exiting.", __func__);
 		return;
 	}
 
-	usb_serial_debug_data(debug, &port->dev, __FUNCTION__,
+	usb_serial_debug_data(debug, &port->dev, __func__,
 			      urb->actual_length, data);
 
 	/* get tty_flag from status */
@@ -1039,7 +1041,7 @@ static void pl2303_read_bulk_callback(struct urb *urb)
 		tty_flag = TTY_PARITY;
 	else if (line_status & UART_FRAME_ERROR)
 		tty_flag = TTY_FRAME;
-	dbg("%s - tty_flag = %d", __FUNCTION__, tty_flag);
+	dbg("%s - tty_flag = %d", __func__, tty_flag);
 
 	tty = port->tty;
 	if (tty && urb->actual_length) {
@@ -1058,7 +1060,7 @@ static void pl2303_read_bulk_callback(struct urb *urb)
 		result = usb_submit_urb(urb, GFP_ATOMIC);
 		if (result)
 			dev_err(&urb->dev->dev, "%s - failed resubmitting"
-				" read urb, error %d\n", __FUNCTION__, result);
+				" read urb, error %d\n", __func__, result);
 	}
 
 	return;
@@ -1066,12 +1068,12 @@ static void pl2303_read_bulk_callback(struct urb *urb)
 
 static void pl2303_write_bulk_callback(struct urb *urb)
 {
-	struct usb_serial_port *port = (struct usb_serial_port *) urb->context;
+	struct usb_serial_port *port =  urb->context;
 	struct pl2303_private *priv = usb_get_serial_port_data(port);
 	int result;
 	int status = urb->status;
 
-	dbg("%s - port %d", __FUNCTION__, port->number);
+	dbg("%s - port %d", __func__, port->number);
 
 	switch (status) {
 	case 0:
@@ -1081,21 +1083,21 @@ static void pl2303_write_bulk_callback(struct urb *urb)
 	case -ENOENT:
 	case -ESHUTDOWN:
 		/* this urb is terminated, clean up */
-		dbg("%s - urb shutting down with status: %d", __FUNCTION__,
+		dbg("%s - urb shutting down with status: %d", __func__,
 		    status);
 		priv->write_urb_in_use = 0;
 		return;
 	default:
 		/* error in the urb, so we have to resubmit it */
-		dbg("%s - Overflow in write", __FUNCTION__);
-		dbg("%s - nonzero write bulk status received: %d", __FUNCTION__,
+		dbg("%s - Overflow in write", __func__);
+		dbg("%s - nonzero write bulk status received: %d", __func__,
 		    status);
 		port->write_urb->transfer_buffer_length = 1;
 		port->write_urb->dev = port->serial->dev;
 		result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
 		if (result)
 			dev_err(&urb->dev->dev, "%s - failed resubmitting write"
-				" urb, error %d\n", __FUNCTION__, result);
+				" urb, error %d\n", __func__, result);
 		else
 			return;
 	}
@@ -1114,9 +1116,6 @@ static struct usb_serial_driver pl2303_device = {
 	},
 	.id_table =		id_table,
 	.usb_driver = 		&pl2303_driver,
-	.num_interrupt_in =	NUM_DONT_CARE,
-	.num_bulk_in =		1,
-	.num_bulk_out =		1,
 	.num_ports =		1,
 	.open =			pl2303_open,
 	.close =		pl2303_close,
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-09-23 02:25:40 +0000