X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=drivers%2Fusb%2Fserial%2Fark3116.c;h=131e61adaaf72bdab5da517830ed43293eb2a69e;hb=5128a66c6605d8178f69b7a8f2a70060933a26b4;hp=77895c8f8f3189fb774acb59cad0f3f3a324cbad;hpb=28a4acb48586dc21d2d14a75a7aab7be78b7c83b;p=karo-tx-linux.git

diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index 77895c8f8f31..131e61adaaf7 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -31,14 +31,19 @@ static int debug;
 
 static struct usb_device_id id_table [] = {
 	{ USB_DEVICE(0x6547, 0x0232) },
+	{ USB_DEVICE(0x18ec, 0x3118) },		/* USB to IrDA adapter */
 	{ },
 };
 MODULE_DEVICE_TABLE(usb, id_table);
 
-struct ark3116_private {
-	spinlock_t lock;
-	u8 termios_initialized;
-};
+static int is_irda(struct usb_serial *serial)
+{
+	struct usb_device *dev = serial->dev;
+	if (le16_to_cpu(dev->descriptor.idVendor) == 0x18ec &&
+			le16_to_cpu(dev->descriptor.idProduct) == 0x3118)
+		return 1;
+	return 0;
+}
 
 static inline void ARK3116_SND(struct usb_serial *serial, int seq,
 			       __u8 request, __u8 requesttype,
@@ -82,29 +87,28 @@ static inline void ARK3116_RCV_QUIET(struct usb_serial *serial,
 static int ark3116_attach(struct usb_serial *serial)
 {
 	char *buf;
-	struct ark3116_private *priv;
-	int i;
-
-	for (i = 0; i < serial->num_ports; ++i) {
-		priv = kzalloc(sizeof(struct ark3116_private), GFP_KERNEL);
-		if (!priv)
-			goto cleanup;
-		spin_lock_init(&priv->lock);
-
-		usb_set_serial_port_data(serial->port[i], priv);
-	}
 
 	buf = kmalloc(1, GFP_KERNEL);
 	if (!buf) {
 		dbg("error kmalloc -> out of mem?");
-		goto cleanup;
+		return -ENOMEM;
 	}
 
+	if (is_irda(serial))
+		dbg("IrDA mode");
+
 	/* 3 */
 	ARK3116_SND(serial, 3, 0xFE, 0x40, 0x0008, 0x0002);
 	ARK3116_SND(serial, 4, 0xFE, 0x40, 0x0008, 0x0001);
 	ARK3116_SND(serial, 5, 0xFE, 0x40, 0x0000, 0x0008);
-	ARK3116_SND(serial, 6, 0xFE, 0x40, 0x0000, 0x000B);
+	ARK3116_SND(serial, 6, 0xFE, 0x40, is_irda(serial) ? 0x0001 : 0x0000,
+		    0x000B);
+
+	if (is_irda(serial)) {
+		ARK3116_SND(serial, 1001, 0xFE, 0x40, 0x0000, 0x000C);
+		ARK3116_SND(serial, 1002, 0xFE, 0x40, 0x0041, 0x000D);
+		ARK3116_SND(serial, 1003, 0xFE, 0x40, 0x0001, 0x000A);
+	}
 
 	/* <-- seq7 */
 	ARK3116_RCV(serial,  7, 0xFE, 0xC0, 0x0000, 0x0003, 0x00, buf);
@@ -141,6 +145,8 @@ static int ark3116_attach(struct usb_serial *serial)
 	ARK3116_SND(serial, 147, 0xFE, 0x40, 0x0083, 0x0003);
 	ARK3116_SND(serial, 148, 0xFE, 0x40, 0x0038, 0x0000);
 	ARK3116_SND(serial, 149, 0xFE, 0x40, 0x0001, 0x0001);
+	if (is_irda(serial))
+		ARK3116_SND(serial, 1004, 0xFE, 0x40, 0x0000, 0x0009);
 	ARK3116_SND(serial, 150, 0xFE, 0x40, 0x0003, 0x0003);
 	ARK3116_RCV(serial, 151, 0xFE, 0xC0, 0x0000, 0x0004, 0x03, buf);
 	ARK3116_SND(serial, 152, 0xFE, 0x40, 0x0000, 0x0003);
@@ -149,23 +155,25 @@ static int ark3116_attach(struct usb_serial *serial)
 
 	kfree(buf);
 	return 0;
+}
 
-cleanup:
-	for (--i; i >= 0; --i) {
-		kfree(usb_get_serial_port_data(serial->port[i]));
-		usb_set_serial_port_data(serial->port[i], NULL);
-	}
-	return -ENOMEM;
+static void ark3116_init_termios(struct tty_struct *tty)
+{
+	struct ktermios *termios = tty->termios;
+	*termios = tty_std_termios;
+	termios->c_cflag = B9600 | CS8
+				      | CREAD | HUPCL | CLOCAL;
+	termios->c_ispeed = 9600;
+	termios->c_ospeed = 9600;
 }
 
-static void ark3116_set_termios(struct usb_serial_port *port,
+static void ark3116_set_termios(struct tty_struct *tty,
+				struct usb_serial_port *port,
 				struct ktermios *old_termios)
 {
 	struct usb_serial *serial = port->serial;
-	struct ark3116_private *priv = usb_get_serial_port_data(port);
-	struct ktermios *termios = port->tty->termios;
+	struct ktermios *termios = tty->termios;
 	unsigned int cflag = termios->c_cflag;
-	unsigned long flags;
 	int baud;
 	int ark3116_baud;
 	char *buf;
@@ -175,16 +183,6 @@ static void ark3116_set_termios(struct usb_serial_port *port,
 
 	dbg("%s - port %d", __func__, port->number);
 
-	spin_lock_irqsave(&priv->lock, flags);
-	if (!priv->termios_initialized) {
-		*(port->tty->termios) = tty_std_termios;
-		port->tty->termios->c_cflag = B9600 | CS8
-					      | CREAD | HUPCL | CLOCAL;
-		termios->c_ispeed = 9600;
-		termios->c_ospeed = 9600;
-		priv->termios_initialized = 1;
-	}
-	spin_unlock_irqrestore(&priv->lock, flags);
 
 	cflag = termios->c_cflag;
 	termios->c_cflag &= ~(CMSPAR|CRTSCTS);
@@ -192,7 +190,7 @@ static void ark3116_set_termios(struct usb_serial_port *port,
 	buf = kmalloc(1, GFP_KERNEL);
 	if (!buf) {
 		dbg("error kmalloc");
-		*port->tty->termios = *old_termios;
+		*termios = *old_termios;
 		return;
 	}
 
@@ -243,7 +241,7 @@ static void ark3116_set_termios(struct usb_serial_port *port,
 	}
 
 	/* set baudrate */
-	baud = tty_get_baud_rate(port->tty);
+	baud = tty_get_baud_rate(tty);
 
 	switch (baud) {
 	case 75:
@@ -262,11 +260,11 @@ static void ark3116_set_termios(struct usb_serial_port *port,
 	case 230400:
 	case 460800:
 		/* Report the resulting rate back to the caller */
-		tty_encode_baud_rate(port->tty, baud, baud);
+		tty_encode_baud_rate(tty, baud, baud);
 		break;
 	/* set 9600 as default (if given baudrate is invalid for example) */
 	default:
-		tty_encode_baud_rate(port->tty, 9600, 9600);
+		tty_encode_baud_rate(tty, 9600, 9600);
 	case 0:
 		baud = 9600;
 	}
@@ -317,7 +315,7 @@ static void ark3116_set_termios(struct usb_serial_port *port,
 	return;
 }
 
-static int ark3116_open(struct usb_serial_port *port, struct file *filp)
+static int ark3116_open(struct tty_struct *tty, struct usb_serial_port *port)
 {
 	struct ktermios tmp_termios;
 	struct usb_serial *serial = port->serial;
@@ -332,7 +330,7 @@ static int ark3116_open(struct usb_serial_port *port, struct file *filp)
 		return -ENOMEM;
 	}
 
-	result = usb_serial_generic_open(port, filp);
+	result = usb_serial_generic_open(tty, port);
 	if (result)
 		goto err_out;
 
@@ -362,8 +360,8 @@ static int ark3116_open(struct usb_serial_port *port, struct file *filp)
 	ARK3116_RCV(serial, 124, 0xFE, 0xC0, 0x0000, 0x0006, 0xFF, buf);
 
 	/* initialise termios */
-	if (port->tty)
-		ark3116_set_termios(port, &tmp_termios);
+	if (tty)
+		ark3116_set_termios(tty, port, &tmp_termios);
 
 err_out:
 	kfree(buf);
@@ -371,9 +369,10 @@ err_out:
 	return result;
 }
 
-static int ark3116_ioctl(struct usb_serial_port *port, struct file *file,
+static int ark3116_ioctl(struct tty_struct *tty, struct file *file,
 			 unsigned int cmd, unsigned long arg)
 {
+	struct usb_serial_port *port = tty->driver_data;
 	struct serial_struct serstruct;
 	void __user *user_arg = (void __user *)arg;
 
@@ -403,8 +402,9 @@ static int ark3116_ioctl(struct usb_serial_port *port, struct file *file,
 	return -ENOIOCTLCMD;
 }
 
-static int ark3116_tiocmget(struct usb_serial_port *port, struct file *file)
+static int ark3116_tiocmget(struct tty_struct *tty, struct file *file)
 {
+	struct usb_serial_port *port = tty->driver_data;
 	struct usb_serial *serial = port->serial;
 	char *buf;
 	char temp;
@@ -451,6 +451,7 @@ static struct usb_serial_driver ark3116_device = {
 	.num_ports =		1,
 	.attach =		ark3116_attach,
 	.set_termios =		ark3116_set_termios,
+	.init_termios =		ark3116_init_termios,
 	.ioctl =		ark3116_ioctl,
 	.tiocmget =		ark3116_tiocmget,
 	.open =			ark3116_open,