Merge branch 'usb-next' into musb-merge

* usb-next: (132 commits)
  USB: uas: Use GFP_NOIO instead of GFP_KERNEL in I/O submission path
  USB: uas: Ensure we only bind to a UAS interface
  USB: uas: Rename sense pipe and sense urb to status pipe and status urb
  USB: uas: Use kzalloc instead of kmalloc
  USB: uas: Fix up the Sense IU
  usb: musb: core: kill unneeded #include's
  DA8xx: assign name to MUSB IRQ resource
  usb: gadget: g_ncm added
  usb: gadget: f_ncm.c added
  usb: gadget: u_ether: prepare for NCM
  usb: pch_udc: Fix setup transfers with data out
  usb: pch_udc: Fix compile error, warnings and checkpatch warnings
  usb: add ab8500 usb transceiver driver
  USB: gadget: Implement runtime PM for MSM bus glue driver
  USB: gadget: Implement runtime PM for ci13xxx gadget
  USB: gadget: Add USB controller driver for MSM SoC
  USB: gadget: Introduce ci13xxx_udc_driver struct
  USB: gadget: Initialize ci13xxx gadget device's coherent DMA mask
  USB: gadget: Fix "scheduling while atomic" bugs in ci13xxx_udc
  USB: gadget: Separate out PCI bus code from ci13xxx_udc
  ...

4 files changed, 90 insertions, 48 deletions

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index ef2977d3a613..cdfb1868caef 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -989,6 +989,7 @@ static struct usb_serial_driver option_1port_device = {
 	.set_termios       = usb_wwan_set_termios,
 	.tiocmget          = usb_wwan_tiocmget,
 	.tiocmset          = usb_wwan_tiocmset,
+	.ioctl             = usb_wwan_ioctl,
 	.attach            = usb_wwan_startup,
 	.disconnect        = usb_wwan_disconnect,
 	.release           = usb_wwan_release,
diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c
index f5312dd3331b..8359ec798959 100644
--- a/drivers/usb/serial/ssu100.c
+++ b/drivers/usb/serial/ssu100.c
@@ -79,7 +79,6 @@ struct ssu100_port_private {
 	u8 shadowLSR;
 	u8 shadowMSR;
 	wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */
-	unsigned short max_packet_size;
 	struct async_icount icount;
 };
 
@@ -464,36 +463,6 @@ static int ssu100_ioctl(struct tty_struct *tty, struct file *file,
 	return -ENOIOCTLCMD;
 }
 
-static void ssu100_set_max_packet_size(struct usb_serial_port *port)
-{
-	struct ssu100_port_private *priv = usb_get_serial_port_data(port);
-	struct usb_serial *serial = port->serial;
-	struct usb_device *udev = serial->dev;
-
-	struct usb_interface *interface = serial->interface;
-	struct usb_endpoint_descriptor *ep_desc = &interface->cur_altsetting->endpoint[1].desc;
-
-	unsigned num_endpoints;
-	int i;
-	unsigned long flags;
-
-	num_endpoints = interface->cur_altsetting->desc.bNumEndpoints;
-	dev_info(&udev->dev, "Number of endpoints %d\n", num_endpoints);
-
-	for (i = 0; i < num_endpoints; i++) {
-		dev_info(&udev->dev, "Endpoint %d MaxPacketSize %d\n", i+1,
-			interface->cur_altsetting->endpoint[i].desc.wMaxPacketSize);
-		ep_desc = &interface->cur_altsetting->endpoint[i].desc;
-	}
-
-	/* set max packet size based on descriptor */
-	spin_lock_irqsave(&priv->status_lock, flags);
-	priv->max_packet_size = ep_desc->wMaxPacketSize;
-	spin_unlock_irqrestore(&priv->status_lock, flags);
-
-	dev_info(&udev->dev, "Setting MaxPacketSize %d\n", priv->max_packet_size);
-}
-
 static int ssu100_attach(struct usb_serial *serial)
 {
 	struct ssu100_port_private *priv;
@@ -511,7 +480,6 @@ static int ssu100_attach(struct usb_serial *serial)
 	spin_lock_init(&priv->status_lock);
 	init_waitqueue_head(&priv->delta_msr_wait);
 	usb_set_serial_port_data(port, priv);
-	ssu100_set_max_packet_size(port);
 
 	return ssu100_initdevice(serial->dev);
 }
@@ -641,13 +609,14 @@ static void ssu100_update_lsr(struct usb_serial_port *port, u8 lsr,
 
 }
 
-static int ssu100_process_packet(struct tty_struct *tty,
-				 struct usb_serial_port *port,
-				 struct ssu100_port_private *priv,
-				 char *packet, int len)
+static int ssu100_process_packet(struct urb *urb,
+				 struct tty_struct *tty)
 {
-	int i;
+	struct usb_serial_port *port = urb->context;
+	char *packet = (char *)urb->transfer_buffer;
 	char flag = TTY_NORMAL;
+	u32 len = urb->actual_length;
+	int i;
 	char *ch;
 
 	dbg("%s - port %d", __func__, port->number);
@@ -685,12 +654,8 @@ static int ssu100_process_packet(struct tty_struct *tty,
 static void ssu100_process_read_urb(struct urb *urb)
 {
 	struct usb_serial_port *port = urb->context;
-	struct ssu100_port_private *priv = usb_get_serial_port_data(port);
-	char *data = (char *)urb->transfer_buffer;
 	struct tty_struct *tty;
-	int count = 0;
-	int i;
-	int len;
+	int count;
 
 	dbg("%s", __func__);
 
@@ -698,10 +663,7 @@ static void ssu100_process_read_urb(struct urb *urb)
 	if (!tty)
 		return;
 
-	for (i = 0; i < urb->actual_length; i += priv->max_packet_size) {
-		len = min_t(int, urb->actual_length - i, priv->max_packet_size);
-		count += ssu100_process_packet(tty, port, priv, &data[i], len);
-	}
+	count = ssu100_process_packet(urb, tty);
 
 	if (count)
 		tty_flip_buffer_push(tty);
@@ -717,8 +679,6 @@ static struct usb_serial_driver ssu100_device = {
 	.id_table	     = id_table,
 	.usb_driver	     = &ssu100_driver,
 	.num_ports	     = 1,
-	.bulk_in_size        = 256,
-	.bulk_out_size       = 256,
 	.open		     = ssu100_open,
 	.close		     = ssu100_close,
 	.attach              = ssu100_attach,
diff --git a/drivers/usb/serial/usb-wwan.h b/drivers/usb/serial/usb-wwan.h
index 2be298a1305b..3ab77c5d9819 100644
--- a/drivers/usb/serial/usb-wwan.h
+++ b/drivers/usb/serial/usb-wwan.h
@@ -18,6 +18,8 @@ extern void usb_wwan_set_termios(struct tty_struct *tty,
 extern int usb_wwan_tiocmget(struct tty_struct *tty, struct file *file);
 extern int usb_wwan_tiocmset(struct tty_struct *tty, struct file *file,
 			     unsigned int set, unsigned int clear);
+extern int usb_wwan_ioctl(struct tty_struct *tty, struct file *file,
+			  unsigned int cmd, unsigned long arg);
 extern int usb_wwan_send_setup(struct usb_serial_port *port);
 extern int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port,
 			  const unsigned char *buf, int count);
diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c
index fbc946797801..b004b2a485c3 100644
--- a/drivers/usb/serial/usb_wwan.c
+++ b/drivers/usb/serial/usb_wwan.c
@@ -31,8 +31,10 @@
 #include <linux/tty_flip.h>
 #include <linux/module.h>
 #include <linux/bitops.h>
+#include <linux/uaccess.h>
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
+#include <linux/serial.h>
 #include "usb-wwan.h"
 
 static int debug;
@@ -123,6 +125,83 @@ int usb_wwan_tiocmset(struct tty_struct *tty, struct file *file,
 }
 EXPORT_SYMBOL(usb_wwan_tiocmset);
 
+static int get_serial_info(struct usb_serial_port *port,
+			   struct serial_struct __user *retinfo)
+{
+	struct serial_struct tmp;
+
+	if (!retinfo)
+		return -EFAULT;
+
+	memset(&tmp, 0, sizeof(tmp));
+	tmp.line            = port->serial->minor;
+	tmp.port            = port->number;
+	tmp.baud_base       = tty_get_baud_rate(port->port.tty);
+	tmp.close_delay	    = port->port.close_delay / 10;
+	tmp.closing_wait    = port->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
+				 ASYNC_CLOSING_WAIT_NONE :
+				 port->port.closing_wait / 10;
+
+	if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
+		return -EFAULT;
+	return 0;
+}
+
+static int set_serial_info(struct usb_serial_port *port,
+			   struct serial_struct __user *newinfo)
+{
+	struct serial_struct new_serial;
+	unsigned int closing_wait, close_delay;
+	int retval = 0;
+
+	if (copy_from_user(&new_serial, newinfo, sizeof(new_serial)))
+		return -EFAULT;
+
+	close_delay = new_serial.close_delay * 10;
+	closing_wait = new_serial.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
+			ASYNC_CLOSING_WAIT_NONE : new_serial.closing_wait * 10;
+
+	mutex_lock(&port->port.mutex);
+
+	if (!capable(CAP_SYS_ADMIN)) {
+		if ((close_delay != port->port.close_delay) ||
+		    (closing_wait != port->port.closing_wait))
+			retval = -EPERM;
+		else
+			retval = -EOPNOTSUPP;
+	} else {
+		port->port.close_delay  = close_delay;
+		port->port.closing_wait = closing_wait;
+	}
+
+	mutex_unlock(&port->port.mutex);
+	return retval;
+}
+
+int usb_wwan_ioctl(struct tty_struct *tty, struct file *file,
+		   unsigned int cmd, unsigned long arg)
+{
+	struct usb_serial_port *port = tty->driver_data;
+
+	dbg("%s cmd 0x%04x", __func__, cmd);
+
+	switch (cmd) {
+	case TIOCGSERIAL:
+		return get_serial_info(port,
+				       (struct serial_struct __user *) arg);
+	case TIOCSSERIAL:
+		return set_serial_info(port,
+				       (struct serial_struct __user *) arg);
+	default:
+		break;
+	}
+
+	dbg("%s arg not supported", __func__);
+
+	return -ENOIOCTLCMD;
+}
+EXPORT_SYMBOL(usb_wwan_ioctl);
+
 /* Write */
 int usb_wwan_write(struct tty_struct *tty, struct usb_serial_port *port,
 		   const unsigned char *buf, int count)