Merge kroah.com:/home/greg/linux/BK/bleed-2.6

into kroah.com:/home/greg/linux/BK/usb-2.6

Documentation/usb/sn9c102.txt

@@ -14,10 +14,10 @@ Index
 4.  Module dependencies
 5.  Module loading
 6.  Module parameters
-7.  Device control through "sysfs"
+7.  Optional device control through "sysfs"
 8.  Supported devices
 9.  How to add support for new image sensors
-10. Note for V4L2 developers
+10. Notes for V4L2 application developers
 11. Contact information
 12. Credits
 
@@ -148,8 +148,8 @@ Default:        2
 -------------------------------------------------------------------------------
 
 
-7. Device control through "sysfs"
-=================================
+7. Optional device control through "sysfs"
+==========================================
 It is possible to read and write both the SN9C10[12] and the image sensor
 registers by using the "sysfs" filesystem interface.
 
@@ -206,7 +206,7 @@ Vendor ID  Product ID
 0xc45      0x6029
 0xc45      0x602a
 0xc45      0x602c
-0xc45      0x8001
+0xc45      0x6030
 
 The list above does NOT imply that all those devices work with this driver: up
 until now only the ones that mount the following image sensors are supported.
@@ -242,19 +242,27 @@ At the moment, not yet supported image sensors are: HV7131[D|E1] (VGA),
 MI03 (VGA), OV7620 (VGA).
 
 
-10. Note for V4L2 developers
-============================
+10. Notes for V4L2 application developers
+=========================================
 This driver follows the V4L2 API specifications. In particular, it enforces two
 rules:
 
-1) Exactly one I/O method, either "mmap" or "read", is associated with each
+- exactly one I/O method, either "mmap" or "read", is associated with each
 file descriptor. Once it is selected, the application must close and reopen the
-device to switch to the other I/O method.
-
-2) Previously mapped buffer memory must always be unmapped before calling any
-of the "VIDIOC_S_CROP", "VIDIOC_TRY_FMT" and "VIDIOC_S_FMT" ioctl's. In case,
-the same number of buffers as before will be allocated again to match the size
-of the new video frames, so you have to map them again before any I/O attempts.
+device to switch to the other I/O method;
+
+- previously mapped buffer memory must always be unmapped before calling any
+of the "VIDIOC_S_CROP", "VIDIOC_TRY_FMT" and "VIDIOC_S_FMT" ioctl's. The same
+number of buffers as before will be allocated again to match the size of the
+new video frames, so you have to map them again before any I/O attempts.
+
+Consistently with the hardware limits, this driver also supports image
+downscaling with arbitrary scaling factors from 1, 2 and 4 in both directions.
+However the V4L2 API specifications don't correctly define how the scaling
+factor can be choosen arbitrarily by the "negotiation" of the "source" and
+"target" rectangles. To work around this flaw, we have added the convention
+that, during the negotiation, whenever the "VIDIOC_S_CROP" ioctl is issued, the
+scaling factor is restored to 1.
 
 
 11. Contact information

drivers/block/ub.c

@@ -107,6 +107,8 @@ struct ub_dev;
  * A second ought to be enough for a 32K transfer (UB_MAX_SECTORS)
  * even if a webcam hogs the bus (famous last words).
  * Some CDs need a second to spin up though.
+ * ZIP drive rejects commands when it's not spinning,
+ * so it does not need long timeouts either.
  */
 #define UB_URB_TIMEOUT	(HZ*2)
 #define UB_CTRL_TIMEOUT	(HZ/2) /* 500ms ought to be enough to clear a stall */
@@ -287,6 +289,7 @@ struct ub_dev {
 
 	struct ub_completion work_done;
 	struct urb work_urb;
+	struct timer_list work_timer;
 	int last_pipe;			/* What might need clearing */
 	struct bulk_cb_wrap work_bcb;
 	struct bulk_cs_wrap work_bcs;
@@ -776,16 +779,20 @@ static int ub_scsi_cmd_start(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
 	sc->last_pipe = sc->send_bulk_pipe;
 	usb_fill_bulk_urb(&sc->work_urb, sc->dev, sc->send_bulk_pipe,
 	    bcb, US_BULK_CB_WRAP_LEN, ub_urb_complete, sc);
-	sc->work_urb.timeout = UB_URB_TIMEOUT;
+	sc->work_urb.transfer_flags = URB_ASYNC_UNLINK;
 
 	/* Fill what we shouldn't be filling, because usb-storage did so. */
 	sc->work_urb.actual_length = 0;
 	sc->work_urb.error_count = 0;
 	sc->work_urb.status = 0;
 
+	sc->work_timer.expires = jiffies + UB_URB_TIMEOUT;
+	add_timer(&sc->work_timer);
+
 	if ((rc = usb_submit_urb(&sc->work_urb, GFP_ATOMIC)) != 0) {
 		/* XXX Clear stalls */
 		printk("ub: cmd #%d start failed (%d)\n", cmd->tag, rc); /* P3 */
+		del_timer(&sc->work_timer);
 		ub_complete(&sc->work_done);
 		return rc;
 	}
@@ -795,6 +802,19 @@ static int ub_scsi_cmd_start(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
 	return 0;
 }
 
+/*
+ * Timeout handler.
+ */
+static void ub_urb_timeout(unsigned long arg)
+{
+	struct ub_dev *sc = (struct ub_dev *) arg;
+	unsigned long flags;
+
+	spin_lock_irqsave(&sc->lock, flags);
+	usb_unlink_urb(&sc->work_urb);
+	spin_unlock_irqrestore(&sc->lock, flags);
+}
+
 /*
  * Completion routine for the work URB.
  *
@@ -943,14 +963,18 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
 		sc->last_pipe = pipe;
 		usb_fill_bulk_urb(&sc->work_urb, sc->dev, pipe,
 		    cmd->data, cmd->len, ub_urb_complete, sc);
-		sc->work_urb.timeout = UB_URB_TIMEOUT;
+		sc->work_urb.transfer_flags = URB_ASYNC_UNLINK;
 		sc->work_urb.actual_length = 0;
 		sc->work_urb.error_count = 0;
 		sc->work_urb.status = 0;
 
+		sc->work_timer.expires = jiffies + UB_URB_TIMEOUT;
+		add_timer(&sc->work_timer);
+
 		if ((rc = usb_submit_urb(&sc->work_urb, GFP_ATOMIC)) != 0) {
 			/* XXX Clear stalls */
 			printk("ub: data #%d submit failed (%d)\n", cmd->tag, rc); /* P3 */
+			del_timer(&sc->work_timer);
 			ub_complete(&sc->work_done);
 			ub_state_done(sc, cmd, rc);
 			return;
@@ -1034,16 +1058,20 @@ static void ub_scsi_urb_compl(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
 			usb_fill_bulk_urb(&sc->work_urb, sc->dev,
 			    sc->recv_bulk_pipe, &sc->work_bcs,
 			    US_BULK_CS_WRAP_LEN, ub_urb_complete, sc);
-			sc->work_urb.timeout = UB_URB_TIMEOUT;
+			sc->work_urb.transfer_flags = URB_ASYNC_UNLINK;
 			sc->work_urb.actual_length = 0;
 			sc->work_urb.error_count = 0;
 			sc->work_urb.status = 0;
 
+			sc->work_timer.expires = jiffies + UB_URB_TIMEOUT;
+			add_timer(&sc->work_timer);
+
 			rc = usb_submit_urb(&sc->work_urb, GFP_ATOMIC);
 			if (rc != 0) {
 				/* XXX Clear stalls */
 				printk("%s: CSW #%d submit failed (%d)\n",
 				   sc->name, cmd->tag, rc); /* P3 */
+				del_timer(&sc->work_timer);
 				ub_complete(&sc->work_done);
 				ub_state_done(sc, cmd, rc);
 				return;
@@ -1153,14 +1181,18 @@ static void ub_state_stat(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
 	sc->last_pipe = sc->recv_bulk_pipe;
 	usb_fill_bulk_urb(&sc->work_urb, sc->dev, sc->recv_bulk_pipe,
 	    &sc->work_bcs, US_BULK_CS_WRAP_LEN, ub_urb_complete, sc);
-	sc->work_urb.timeout = UB_URB_TIMEOUT;
+	sc->work_urb.transfer_flags = URB_ASYNC_UNLINK;
 	sc->work_urb.actual_length = 0;
 	sc->work_urb.error_count = 0;
 	sc->work_urb.status = 0;
 
+	sc->work_timer.expires = jiffies + UB_URB_TIMEOUT;
+	add_timer(&sc->work_timer);
+
 	if ((rc = usb_submit_urb(&sc->work_urb, GFP_ATOMIC)) != 0) {
 		/* XXX Clear stalls */
 		printk("ub: CSW #%d submit failed (%d)\n", cmd->tag, rc); /* P3 */
+		del_timer(&sc->work_timer);
 		ub_complete(&sc->work_done);
 		ub_state_done(sc, cmd, rc);
 		return;
@@ -1233,14 +1265,17 @@ static int ub_submit_clear_stall(struct ub_dev *sc, struct ub_scsi_cmd *cmd,
 	UB_INIT_COMPLETION(sc->work_done);
 
 	usb_fill_control_urb(&sc->work_urb, sc->dev, sc->send_ctrl_pipe,
-	    (unsigned char*) cr, NULL, 0,
-	    ub_urb_complete, sc);
-	sc->work_urb.timeout = UB_CTRL_TIMEOUT;
+	    (unsigned char*) cr, NULL, 0, ub_urb_complete, sc);
+	sc->work_urb.transfer_flags = URB_ASYNC_UNLINK;
 	sc->work_urb.actual_length = 0;
 	sc->work_urb.error_count = 0;
 	sc->work_urb.status = 0;
 
+	sc->work_timer.expires = jiffies + UB_CTRL_TIMEOUT;
+	add_timer(&sc->work_timer);
+
 	if ((rc = usb_submit_urb(&sc->work_urb, GFP_ATOMIC)) != 0) {
+		del_timer(&sc->work_timer);
 		ub_complete(&sc->work_done);
 		return rc;
 	}
@@ -1653,6 +1688,12 @@ static void ub_probe_urb_complete(struct urb *urb, struct pt_regs *pt)
 	complete(cop);
 }
 
+static void ub_probe_timeout(unsigned long arg)
+{
+	struct completion *cop = (struct completion *) arg;
+	complete(cop);
+}
+
 /*
  * Clear initial stalls.
  */
@@ -1661,6 +1702,7 @@ static int ub_probe_clear_stall(struct ub_dev *sc, int stalled_pipe)
 	int endp;
 	struct usb_ctrlrequest *cr;
 	struct completion compl;
+	struct timer_list timer;
 	int rc;
 
 	init_completion(&compl);
@@ -1677,21 +1719,35 @@ static int ub_probe_clear_stall(struct ub_dev *sc, int stalled_pipe)
 	cr->wLength = cpu_to_le16(0);
 
 	usb_fill_control_urb(&sc->work_urb, sc->dev, sc->send_ctrl_pipe,
-	    (unsigned char*) cr, NULL, 0,
-	    ub_probe_urb_complete, &compl);
-	sc->work_urb.timeout = UB_CTRL_TIMEOUT;
+	    (unsigned char*) cr, NULL, 0, ub_probe_urb_complete, &compl);
+	sc->work_urb.transfer_flags = 0;
 	sc->work_urb.actual_length = 0;
 	sc->work_urb.error_count = 0;
 	sc->work_urb.status = 0;
 
+	init_timer(&timer);
+	timer.function = ub_probe_timeout;
+	timer.data = (unsigned long) &compl;
+	timer.expires = jiffies + UB_CTRL_TIMEOUT;
+	add_timer(&timer);
+
 	if ((rc = usb_submit_urb(&sc->work_urb, GFP_KERNEL)) != 0) {
 		printk(KERN_WARNING
 		     "%s: Unable to submit a probe clear (%d)\n", sc->name, rc);
+		del_timer_sync(&timer);
 		return rc;
 	}
 
 	wait_for_completion(&compl);
 
+	del_timer_sync(&timer);
+	/*
+	 * Most of the time, URB was done and dev set to NULL, and so
+	 * the unlink bounces out with ENODEV. We do not call usb_kill_urb
+	 * because we still think about a backport to 2.4.
+	 */
+	usb_unlink_urb(&sc->work_urb);
+
 	/* reset the endpoint toggle */
 	usb_settoggle(sc->dev, endp, usb_pipeout(sc->last_pipe), 0);
 
@@ -1767,6 +1823,10 @@ static int ub_probe(struct usb_interface *intf,
 	tasklet_init(&sc->tasklet, ub_scsi_action, (unsigned long)sc);
 	atomic_set(&sc->poison, 0);
 
+	init_timer(&sc->work_timer);
+	sc->work_timer.data = (unsigned long) sc;
+	sc->work_timer.function = ub_urb_timeout;
+
 	ub_init_completion(&sc->work_done);
 	sc->work_done.done = 1;		/* A little yuk, but oh well... */
 

drivers/i2c/chips/Kconfig

@@ -299,4 +299,16 @@ config SENSORS_RTC8564
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-rtc8564.
 
+config ISP1301_OMAP
+	tristate "Philips ISP1301 with OMAP OTG"
+	depends on I2C && ARCH_OMAP_OTG
+	help
+	  If you say yes here you get support for the Philips ISP1301
+	  USB-On-The-Go transceiver working with the OMAP OTG controller.
+	  The ISP1301 is used in products including H2 and H3 development
+	  boards for Texas Instruments OMAP processors.
+	  
+	  This driver can also be built as a module.  If so, the module
+	  will be called isp1301_omap.
+
 endmenu

drivers/i2c/chips/Makefile

@@ -29,7 +29,9 @@ obj-$(CONFIG_SENSORS_RTC8564)	+= rtc8564.o
 obj-$(CONFIG_SENSORS_SMSC47M1)	+= smsc47m1.o
 obj-$(CONFIG_SENSORS_VIA686A)	+= via686a.o
 obj-$(CONFIG_SENSORS_W83L785TS)	+= w83l785ts.o
+obj-$(CONFIG_ISP1301_OMAP)	+= isp1301_omap.o
 
 ifeq ($(CONFIG_I2C_DEBUG_CHIP),y)
 EXTRA_CFLAGS += -DDEBUG
 endif
+

drivers/net/irda/irda-usb.c

@@ -268,7 +268,6 @@ static void irda_usb_change_speed_xbofs(struct irda_usb_cb *self)
                       speed_bulk_callback, self);
 	urb->transfer_buffer_length = USB_IRDA_HEADER;
 	urb->transfer_flags = URB_ASYNC_UNLINK;
-	urb->timeout = msecs_to_jiffies(100);
 
 	/* Irq disabled -> GFP_ATOMIC */
 	if ((ret = usb_submit_urb(urb, GFP_ATOMIC))) {
@@ -411,8 +410,6 @@ static int irda_usb_hard_xmit(struct sk_buff *skb, struct net_device *netdev)
 	 * after each of our packets that is exact multiple of the frame size.
 	 * This is how the dongle will detect the end of packet - Jean II */
 	urb->transfer_flags |= URB_ZERO_PACKET;
-	/* Timeout need to be shorter than NET watchdog timer */
-	urb->timeout = msecs_to_jiffies(200);
 
 	/* Generate min turn time. FIXME: can we do better than this? */
 	/* Trying to a turnaround time at this level is trying to measure

drivers/usb/class/cdc-acm.c

@@ -367,7 +367,7 @@ static int acm_tty_write(struct tty_struct *tty, int from_user, const unsigned c
 	acm->writeurb->dev = acm->dev;
 
 	acm->ready_for_write = 0;
-	stat = usb_submit_urb(acm->writeurb, GFP_NOIO);
+	stat = usb_submit_urb(acm->writeurb, from_user ? GFP_KERNEL : GFP_ATOMIC);
 	if (stat < 0) {
 		dbg("usb_submit_urb(write bulk) failed");
 		acm->ready_for_write = 1;

drivers/usb/core/Kconfig

@@ -71,3 +71,29 @@ config USB_SUSPEND
 	  may not yet work as expected.
 
 	  If you are unsure about this, say N here.
+
+
+config USB_OTG
+	bool
+	depends on USB && EXPERIMENTAL
+	select USB_SUSPEND
+	default n
+
+
+config USB_OTG_WHITELIST
+	bool "Rely on OTG Targeted Peripherals List"
+	depends on USB_OTG
+	default y
+	help
+	  If you say Y here, the "otg_whitelist.h" file will be used as a
+	  product whitelist, so USB peripherals not listed there will be
+	  rejected during enumeration.  This behavior is required by the
+	  USB OTG specification for all devices not on your product's
+	  "Targeted Peripherals List".
+
+	  Otherwise, peripherals not listed there will only generate a
+	  warning and enumeration will continue.  That's more like what
+	  normal Linux-USB hosts do (other than the warning), and is
+	  convenient for many stages of product development.
+
+

drivers/usb/core/hcd.c

@@ -790,6 +790,8 @@ int usb_register_root_hub (struct usb_device *usb_dev, struct device *parent_dev
 	usb_dev->epmaxpacketin[0] = usb_dev->epmaxpacketout[0] = 64;
 	retval = usb_get_device_descriptor(usb_dev, USB_DT_DEVICE_SIZE);
 	if (retval != sizeof usb_dev->descriptor) {
+		usb_dev->bus->root_hub = NULL;
+		up (&usb_bus_list_lock);
 		dev_dbg (parent_dev, "can't read %s device descriptor %d\n",
 				usb_dev->dev.bus_id, retval);
 		return (retval < 0) ? retval : -EMSGSIZE;
@@ -1404,6 +1406,45 @@ static int hcd_hub_resume (struct usb_bus *bus)
 
 /*-------------------------------------------------------------------------*/
 
+#ifdef	CONFIG_USB_OTG
+
+/**
+ * usb_bus_start_enum - start immediate enumeration (for OTG)
+ * @bus: the bus (must use hcd framework)
+ * @port: 1-based number of port; usually bus->otg_port
+ * Context: in_interrupt()
+ *
+ * Starts enumeration, with an immediate reset followed later by
+ * khubd identifying and possibly configuring the device.
+ * This is needed by OTG controller drivers, where it helps meet
+ * HNP protocol timing requirements for starting a port reset.
+ */
+int usb_bus_start_enum(struct usb_bus *bus, unsigned port_num)
+{
+	struct usb_hcd		*hcd;
+	int			status = -EOPNOTSUPP;
+
+	/* NOTE: since HNP can't start by grabbing the bus's address0_sem,
+	 * boards with root hubs hooked up to internal devices (instead of
+	 * just the OTG port) may need more attention to resetting...
+	 */
+	hcd = container_of (bus, struct usb_hcd, self);
+	if (port_num && hcd->driver->start_port_reset)
+		status = hcd->driver->start_port_reset(hcd, port_num);
+
+	/* run khubd shortly after (first) root port reset finishes;
+	 * it may issue others, until at least 50 msecs have passed.
+	 */
+	if (status == 0)
+		mod_timer(&hcd->rh_timer, jiffies + msecs_to_jiffies(10));
+	return status;
+}
+EXPORT_SYMBOL (usb_bus_start_enum);
+
+#endif
+
+/*-------------------------------------------------------------------------*/
+
 /* called by khubd, rmmod, apmd, or other thread for hcd-private cleanup.
  * we're guaranteed that the device is fully quiesced.  also, that each
  * endpoint has been hcd_endpoint_disabled.

drivers/usb/core/hcd.h

@@ -212,6 +212,7 @@ struct hc_driver {
 				char *buf, u16 wLength);
 	int		(*hub_suspend)(struct usb_hcd *);
 	int		(*hub_resume)(struct usb_hcd *);
+	int		(*start_port_reset)(struct usb_hcd *, unsigned port_num);
 };
 
 extern void usb_hcd_giveback_urb (struct usb_hcd *hcd, struct urb *urb, struct pt_regs *regs);

drivers/usb/core/hub.c

@@ -1095,6 +1095,10 @@ static inline void show_string(struct usb_device *udev, char *id, int index)
 {}
 #endif
 
+#ifdef	CONFIG_USB_OTG
+#include "otg_whitelist.h"
+#endif
+
 /**
  * usb_new_device - perform initial device setup (usbcore-internal)
  * @udev: newly addressed device (in ADDRESS state)
@@ -1144,6 +1148,79 @@ int usb_new_device(struct usb_device *udev)
 		show_string(udev, "SerialNumber",
 				udev->descriptor.iSerialNumber);
 
+#ifdef	CONFIG_USB_OTG
+	/*
+	 * OTG-aware devices on OTG-capable root hubs may be able to use SRP,
+	 * to wake us after we've powered off VBUS; and HNP, switching roles
+	 * "host" to "peripheral".  The OTG descriptor helps figure this out.
+	 */
+	if (!udev->bus->is_b_host
+			&& udev->config
+			&& udev->parent == udev->bus->root_hub) {
+		struct usb_otg_descriptor	*desc = 0;
+		struct usb_bus			*bus = udev->bus;
+
+		/* descriptor may appear anywhere in config */
+		if (__usb_get_extra_descriptor (udev->rawdescriptors[0],
+					udev->config[0].desc.wTotalLength,
+					USB_DT_OTG, (void **) &desc) == 0) {
+			if (desc->bmAttributes & USB_OTG_HNP) {
+				unsigned		port;
+				struct usb_device	*root = udev->parent;
+				
+				for (port = 0; port < root->maxchild; port++) {
+					if (root->children[port] == udev)
+						break;
+				}
+				port++;
+
+				dev_info(&udev->dev,
+					"Dual-Role OTG device on %sHNP port\n",
+					(port == bus->otg_port)
+						? "" : "non-");
+
+				/* enable HNP before suspend, it's simpler */
+				if (port == bus->otg_port)
+					bus->b_hnp_enable = 1;
+				err = usb_control_msg(udev,
+					usb_sndctrlpipe(udev, 0),
+					USB_REQ_SET_FEATURE, 0,
+					bus->b_hnp_enable
+						? USB_DEVICE_B_HNP_ENABLE
+						: USB_DEVICE_A_ALT_HNP_SUPPORT,
+					0, NULL, 0, HZ * USB_CTRL_SET_TIMEOUT);
+				if (err < 0) {
+					/* OTG MESSAGE: report errors here,
+					 * customize to match your product.
+					 */
+					dev_info(&udev->dev,
+						"can't set HNP mode; %d\n",
+						err);
+					bus->b_hnp_enable = 0;
+				}
+			}
+		}
+	}
+
+	if (!is_targeted(udev)) {
+
+		/* Maybe it can talk to us, though we can't talk to it.
+		 * (Includes HNP test device.)
+		 */
+		if (udev->bus->b_hnp_enable || udev->bus->is_b_host) {
+			static int __usb_suspend_device (struct usb_device *,
+						int port, u32 state);
+			err = __usb_suspend_device(udev,
+					udev->bus->otg_port - 1,
+					PM_SUSPEND_MEM);
+			if (err < 0)
+				dev_dbg(&udev->dev, "HNP fail, %d\n", err);
+		}
+		err = -ENODEV;
+		goto fail;
+	}
+#endif
+
 	/* put device-specific files into sysfs */
 	err = device_add (&udev->dev);
 	if (err) {
@@ -1934,6 +2011,10 @@ hub_port_init (struct usb_device *hdev, struct usb_device *udev, int port)
 			hdev->bus->b_hnp_enable = 0;
 	}
 
+	retval = clear_port_feature(hdev, port, USB_PORT_FEAT_SUSPEND);
+	if (retval < 0 && retval != -EPIPE)
+		dev_dbg(&udev->dev, "can't clear suspend; %d\n", retval);
+
 	/* Some low speed devices have problems with the quick delay, so */
 	/*  be a bit pessimistic with those devices. RHbug #23670 */
 	if (oldspeed == USB_SPEED_LOW)
@@ -2160,6 +2241,12 @@ static void hub_port_connect_change(struct usb_hub *hub, int port,
 		usb_disconnect(&hdev->children[port]);
 	clear_bit(port, hub->change_bits);
 
+#ifdef	CONFIG_USB_OTG
+	/* during HNP, don't repeat the debounce */
+	if (hdev->bus->is_b_host)
+		portchange &= ~USB_PORT_STAT_C_CONNECTION;
+#endif
+
 	if (portchange & USB_PORT_STAT_C_CONNECTION) {
 		status = hub_port_debounce(hdev, port);
 		if (status < 0) {

drivers/usb/core/hub.h

@@ -190,8 +190,8 @@ struct usb_hub {
 	struct usb_device	*hdev;
 	struct urb		*urb;		/* for interrupt polling pipe */
 
-	/* buffer for urb ... 1 bit each for hub and children, rounded up */
-	char			(*buffer)[(USB_MAXCHILDREN + 1 + 7) / 8];
+	/* buffer for urb ... with extra space in case of babble */
+	char			(*buffer)[8];
 	dma_addr_t		buffer_dma;	/* DMA address for buffer */
 	union {
 		struct usb_hub_status	hub;

drivers/usb/core/message.c

@@ -248,7 +248,7 @@ static void sg_complete (struct urb *urb, struct pt_regs *regs)
 		 * unlink pending urbs so they won't rx/tx bad data.
 		 */
 		for (i = 0, found = 0; i < io->entries; i++) {
-			if (!io->urbs [i])
+			if (!io->urbs [i] || !io->urbs [i]->dev)
 				continue;
 			if (found) {
 				status = usb_unlink_urb (io->urbs [i]);
@@ -337,7 +337,7 @@ int usb_sg_init (
 	if (io->entries <= 0)
 		return io->entries;
 
-	io->count = 0;
+	io->count = io->entries;
 	io->urbs = kmalloc (io->entries * sizeof *io->urbs, mem_flags);
 	if (!io->urbs)
 		goto nomem;
@@ -347,7 +347,7 @@ int usb_sg_init (
 	if (usb_pipein (pipe))
 		urb_flags |= URB_SHORT_NOT_OK;
 
-	for (i = 0; i < io->entries; i++, io->count = i) {
+	for (i = 0; i < io->entries; i++) {
 		unsigned		len;
 
 		io->urbs [i] = usb_alloc_urb (0, mem_flags);
@@ -477,24 +477,19 @@ void usb_sg_wait (struct usb_sg_request *io)
 
 			/* fail any uncompleted urbs */
 		default:
-			spin_lock_irq (&io->lock);
-			io->count -= entries - i;
-			if (io->status == -EINPROGRESS)
-				io->status = retval;
-			if (io->count == 0)
-				complete (&io->complete);
-			spin_unlock_irq (&io->lock);
-
-			io->urbs[i]->dev = NULL;
+			io->urbs [i]->dev = NULL;
 			io->urbs [i]->status = retval;
 			dev_dbg (&io->dev->dev, "%s, submit --> %d\n",
 				__FUNCTION__, retval);
 			usb_sg_cancel (io);
 		}
 		spin_lock_irq (&io->lock);
-		if (retval && io->status == -ECONNRESET)
+		if (retval && (io->status == 0 || io->status == -ECONNRESET))
 			io->status = retval;
 	}
+	io->count -= entries - i;
+	if (io->count == 0)
+		complete (&io->complete);
 	spin_unlock_irq (&io->lock);
 
 	/* OK, yes, this could be packaged as non-blocking.

drivers/usb/core/otg_whitelist.h

+/*
+ * drivers/usb/core/otg_whitelist.h
+ *
+ * Copyright (C) 2004 Texas Instruments
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+/*
+ * This OTG Whitelist is the OTG "Targeted Peripheral List".  It should
+ * mostly use of USB_DEVICE() or USB_DEVICE_VER() entries..
+ *
+ * YOU _SHOULD_ CHANGE THIS LIST TO MATCH YOUR PRODUCT AND ITS TESTING!
+ */ 
+
+static struct usb_device_id whitelist_table [] = {
+
+/* hubs are optional in OTG, but very handy ... */
+{ USB_DEVICE_INFO(USB_CLASS_HUB, 0, 0), },
+{ USB_DEVICE_INFO(USB_CLASS_HUB, 0, 1), },
+
+#ifdef	CONFIG_USB_PRINTER		/* ignoring nonstatic linkage! */
+/* FIXME actually, printers are NOT supposed to use device classes;
+ * they're supposed to use interface classes...
+ */
+{ USB_DEVICE_INFO(7, 1, 1) },
+{ USB_DEVICE_INFO(7, 1, 2) },
+{ USB_DEVICE_INFO(7, 1, 3) },
+#endif
+
+#ifdef	CONFIG_USB_CDCETHER
+/* Linux-USB CDC Ethernet gadget */
+{ USB_DEVICE(0x0525, 0xa4a1), },
+/* Linux-USB CDC Ethernet + RNDIS gadget */
+{ USB_DEVICE(0x0525, 0xa4a2), },
+#endif
+
+#if	defined(CONFIG_USB_TEST) || defined(CONFIG_USB_TEST_MODULE)
+/* gadget zero, for testing */
+{ USB_DEVICE(0x0525, 0xa4a0), },
+#endif
+
+{ }	/* Terminating entry */
+};
+
+static int is_targeted(struct usb_device *dev)
+{
+	struct usb_device_id	*id = whitelist_table;
+
+	/* possible in developer configs only! */
+	if (!dev->bus->otg_port)
+		return 1;
+
+	/* HNP test device is _never_ targeted (see OTG spec 6.6.6) */
+	if (dev->descriptor.idVendor == 0x1a0a
+			&& dev->descriptor.idProduct == 0xbadd)
+		return 0;
+
+	/* NOTE: can't use usb_match_id() since interface caches
+	 * aren't set up yet. this is cut/paste from that code.
+	 */
+	for (id = whitelist_table; id->match_flags; id++) {
+		if ((id->match_flags & USB_DEVICE_ID_MATCH_VENDOR) &&
+		    id->idVendor != dev->descriptor.idVendor)
+			continue;
+
+		if ((id->match_flags & USB_DEVICE_ID_MATCH_PRODUCT) &&
+		    id->idProduct != dev->descriptor.idProduct)
+			continue;
+
+		/* No need to test id->bcdDevice_lo != 0, since 0 is never
+		   greater than any unsigned number. */
+		if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_LO) &&
+		    (id->bcdDevice_lo > dev->descriptor.bcdDevice))
+			continue;
+
+		if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_HI) &&
+		    (id->bcdDevice_hi < dev->descriptor.bcdDevice))
+			continue;
+
+		if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_CLASS) &&
+		    (id->bDeviceClass != dev->descriptor.bDeviceClass))
+			continue;
+
+		if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_SUBCLASS) &&
+		    (id->bDeviceSubClass!= dev->descriptor.bDeviceSubClass))
+			continue;
+
+		if ((id->match_flags & USB_DEVICE_ID_MATCH_DEV_PROTOCOL) &&
+		    (id->bDeviceProtocol != dev->descriptor.bDeviceProtocol))
+			continue;
+
+		return 1;
+	}
+
+	/* add other match criteria here ... */
+
+
+	/* OTG MESSAGE: report errors here, customize to match your product */
+	dev_err(&dev->dev, "device v%04x p%04x is not supported\n",
+			dev->descriptor.idVendor,
+			dev->descriptor.idProduct);
+#ifdef	CONFIG_USB_OTG_WHITELIST
+	return 0;
+#else
+	return 1;
+#endif
+}
+

drivers/usb/gadget/Kconfig

@@ -135,6 +135,18 @@ config USB_SA1100
 	depends on USB_GADGET_SA1100
 	default USB_GADGET
 
+config USB_GADGET_LH7A40X
+	boolean "LH7A40X"
+	depends on ARCH_LH7A40X
+	help
+    This driver provides USB Device Controller driver for LH7A40x
+
+config USB_LH7A40X
+	tristate
+	depends on USB_GADGET_LH7A40X
+	default USB_GADGET
+
+
 config USB_GADGET_DUMMY_HCD
 	boolean "Dummy HCD (DEVELOPMENT)"
 	depends on USB && EXPERIMENTAL
@@ -163,6 +175,41 @@ config USB_DUMMY_HCD
 	depends on USB_GADGET_DUMMY_HCD
 	default USB_GADGET
 
+config USB_GADGET_OMAP
+	boolean "OMAP USB Device Controller"
+	depends on ARCH_OMAP
+	select ISP1301_OMAP if MACH_OMAP_H2
+	help
+	   Many Texas Instruments OMAP processors have flexible full
+	   speed USB device controllers, with support for up to 30
+	   endpoints (plus endpoint zero).  This driver supports the
+	   controller in the OMAP 1611, and should work with controllers
+	   in other OMAP processors too, given minor tweaks.
+
+	   Say "y" to link the driver statically, or "m" to build a
+	   dynamically linked module called "omap_udc" and force all
+	   gadget drivers to also be dynamically linked.
+
+config USB_OMAP
+	tristate
+	depends on USB_GADGET_OMAP
+	default USB_GADGET
+
+config USB_OTG
+	boolean "OTG Support"
+	depends on USB_GADGET_OMAP && ARCH_OMAP_OTG && USB_OHCI_HCD
+	help
+	   The most notable feature of USB OTG is support for a
+	   "Dual-Role" device, which can act as either a device
+	   or a host.  The initial role choice can be changed
+	   later, when two dual-role devices talk to each other.
+
+	   Select this only if your OMAP board has a Mini-AB connector.
+
+config USB_OMAP_PROC
+	boolean "/proc/driver/udc file"
+	depends on USB_GADGET_OMAP
+
 endchoice
 
 config USB_GADGET_DUALSPEED

drivers/usb/gadget/Makefile

@@ -5,6 +5,8 @@ obj-$(CONFIG_USB_DUMMY_HCD)	+= dummy_hcd.o
 obj-$(CONFIG_USB_NET2280)	+= net2280.o
 obj-$(CONFIG_USB_PXA2XX)	+= pxa2xx_udc.o
 obj-$(CONFIG_USB_GOKU)		+= goku_udc.o
+obj-$(CONFIG_USB_OMAP)		+= omap_udc.o
+obj-$(CONFIG_USB_LH7A40X)	+= lh7a40x_udc.o
 
 #
 # USB gadget drivers

drivers/usb/gadget/ether.c

@@ -63,6 +63,7 @@
 
 /*
  * Ethernet gadget driver -- with CDC and non-CDC options
+ * Builds on hardware support for a full duplex link.
  *
  * CDC Ethernet is the standard USB solution for sending Ethernet frames
  * using USB.  Real hardware tends to use the same framing protocol but look
@@ -242,6 +243,10 @@ MODULE_PARM_DESC(host_addr, "Host Ethernet Address");
 #define	DEV_CONFIG_SUBSET
 #endif
 
+#ifdef CONFIG_USB_GADGET_LH7A40X
+#define DEV_CONFIG_CDC
+#endif
+
 #ifdef CONFIG_USB_GADGET_SA1100
 /* use non-CDC for backwards compatibility */
 #define	DEV_CONFIG_SUBSET
@@ -855,7 +860,7 @@ static char				product_desc [40] = DRIVER_DESC;
 static char				ethaddr [2 * ETH_ALEN + 1];
 #endif
 
-/* static strings, in iso 8859/1 */
+/* static strings, in UTF-8 */
 static struct usb_string		strings [] = {
 	{ STRING_MANUFACTURER,	manufacturer, },
 	{ STRING_PRODUCT,	product_desc, },
@@ -897,9 +902,9 @@ config_buf (enum usb_device_speed speed,
 
 	if (type == USB_DT_OTHER_SPEED_CONFIG)
 		hs = !hs;
-#define which_fn(t)	(hs ? & hs_ ## t ## _function : & fs_ ## t ## _function)
+#define which_fn(t)	(hs ? hs_ ## t ## _function : fs_ ## t ## _function)
 #else
-#define	which_fn(t)	(& fs_ ## t ## _function)
+#define	which_fn(t)	(fs_ ## t ## _function)
 #endif
 
 	if (index >= device_desc.bNumConfigurations)
@@ -911,14 +916,12 @@ config_buf (enum usb_device_speed speed,
 	 */
 	if (device_desc.bNumConfigurations == 2 && index == 0) {
 		config = &rndis_config;
-		function = (const struct usb_descriptor_header **)
-				which_fn (rndis);
+		function = which_fn (rndis);
 	} else
 #endif
 	{
 		config = &eth_config;
-		function = (const struct usb_descriptor_header **)
-				which_fn (eth);
+		function = which_fn (eth);
 	}
 
 	/* for now, don't advertise srp-only devices */
@@ -2329,6 +2332,8 @@ eth_bind (struct usb_gadget *gadget)
 		device_desc.bcdDevice = __constant_cpu_to_le16 (0x0207);
 	} else if (gadget_is_omap (gadget)) {
 		device_desc.bcdDevice = __constant_cpu_to_le16 (0x0208);
+	} else if (gadget_is_lh7a40x(gadget)) {
+		device_desc.bcdDevice = __constant_cpu_to_le16 (0x0209);
 	} else {
 		/* can't assume CDC works.  don't want to default to
 		 * anything less functional on CDC-capable hardware,

drivers/usb/gadget/file_storage.c

@@ -3713,6 +3713,8 @@ static int __init check_parameters(struct fsg_dev *fsg)
 			mod_data.release = __constant_cpu_to_le16(0x0307);
 		else if (gadget_is_omap(fsg->gadget))
 			mod_data.release = __constant_cpu_to_le16(0x0308);
+		else if (gadget_is_lh7a40x(gadget))
+			mod_data.release = __constant_cpu_to_le16 (0x0309);
 		else {
 			WARN(fsg, "controller '%s' not recognized\n",
 				fsg->gadget->name);

drivers/usb/gadget/gadget_chips.h

@@ -44,6 +44,12 @@
 #define	gadget_is_sa1100(g)	0
 #endif
 
+#ifdef CONFIG_USB_GADGET_LH7A40X
+#define	gadget_is_lh7a40x(g)	!strcmp("lh7a40x_udc", (g)->name)
+#else
+#define	gadget_is_lh7a40x(g)	0
+#endif
+
 #ifdef CONFIG_USB_GADGET_MQ11XX
 #define	gadget_is_mq11xx(g)	!strcmp("mq11xx_udc", (g)->name)
 #else

drivers/usb/gadget/inode.c

 /*
  * inode.c -- user mode filesystem api for usb gadget controllers
  *
- * Copyright (C) 2003 David Brownell
+ * Copyright (C) 2003-2004 David Brownell
  * Copyright (C) 2003 Agilent Technologies
  *
  * This program is free software; you can redistribute it and/or modify
@@ -71,7 +71,7 @@
  */
 
 #define	DRIVER_DESC	"USB Gadget filesystem"
-#define	DRIVER_VERSION	"18 Nov 2003"
+#define	DRIVER_VERSION	"24 Aug 2004"
 
 static const char driver_desc [] = DRIVER_DESC;
 static const char shortname [] = "gadgetfs";
@@ -229,37 +229,12 @@ static void put_ep (struct ep_data *data)
 /*----------------------------------------------------------------------*/
 
 /* most "how to use the hardware" policy choices are in userspace:
- * mapping endpoint roles the driver needs to the capabilities that
- * the usb controller exposes.
+ * mapping endpoint roles (which the driver needs) to the capabilities
+ * which the usb controller has.  most of those capabilities are exposed
+ * implicitly, starting with the driver name and then endpoint names.
  */
 
-#ifdef	CONFIG_USB_GADGET_DUMMY_HCD
-/* act (mostly) like a net2280 */
-#define CONFIG_USB_GADGET_NET2280
-#endif
-
-#ifdef	CONFIG_USB_GADGET_NET2280
-#define CHIP			"net2280"
-#define HIGHSPEED
-#endif
-
-#ifdef	CONFIG_USB_GADGET_PXA2XX
-#define CHIP			"pxa2xx_udc"
-/* earlier hardware doesn't have UDCCFR, races set_{config,interface} */
-#warning works best with pxa255 or newer
-#endif
-
-#ifdef	CONFIG_USB_GADGET_GOKU
-#define CHIP			"goku_udc"
-#endif
-
-#ifdef	CONFIG_USB_GADGET_OMAP
-#define CHIP			"omap_udc"
-#endif
-
-#ifdef	CONFIG_USB_GADGET_SA1100
-#define CHIP			"sa1100"
-#endif
+static const char *CHIP;
 
 /*----------------------------------------------------------------------*/
 
@@ -558,7 +533,7 @@ struct kiocb_priv {
 
 static int ep_aio_cancel(struct kiocb *iocb, struct io_event *e)
 {
-	struct kiocb_priv	*priv = (void *) &iocb->private;
+	struct kiocb_priv	*priv = iocb->private;
 	struct ep_data		*epdata;
 	int			value;
 
@@ -579,7 +554,7 @@ static int ep_aio_cancel(struct kiocb *iocb, struct io_event *e)
 
 static ssize_t ep_aio_read_retry(struct kiocb *iocb)
 {
-	struct kiocb_priv	*priv = (void *) &iocb->private;
+	struct kiocb_priv	*priv = iocb->private;
 	ssize_t			status = priv->actual;
 
 	/* we "retry" to get the right mm context for this: */
@@ -589,6 +564,7 @@ static ssize_t ep_aio_read_retry(struct kiocb *iocb)
 	else
 		status = priv->actual;
 	kfree(priv->buf);
+	kfree(priv);
 	aio_put_req(iocb);
 	return status;
 }
@@ -596,7 +572,7 @@ static ssize_t ep_aio_read_retry(struct kiocb *iocb)
 static void ep_aio_complete(struct usb_ep *ep, struct usb_request *req)
 {
 	struct kiocb		*iocb = req->context;
-	struct kiocb_priv	*priv = (void *) &iocb->private;
+	struct kiocb_priv	*priv = iocb->private;
 	struct ep_data		*epdata = priv->epdata;
 
 	/* lock against disconnect (and ideally, cancel) */
@@ -607,6 +583,8 @@ static void ep_aio_complete(struct usb_ep *ep, struct usb_request *req)
 			|| unlikely(0 == req->actual)
 			|| unlikely(kiocbIsCancelled(iocb))) {
 		kfree(req->buf);
+		kfree(priv);
+		iocb->private = 0;
 		/* aio_complete() reports bytes-transferred _and_ faults */
 		if (unlikely(kiocbIsCancelled(iocb)))
 			aio_put_req(iocb);
@@ -631,17 +609,33 @@ static void ep_aio_complete(struct usb_ep *ep, struct usb_request *req)
 }
 
 static ssize_t
-ep_aio_rwtail(struct kiocb *iocb, char *buf, size_t len, struct ep_data *epdata)
+ep_aio_rwtail(
+	struct kiocb	*iocb,
+	char		*buf,
+	size_t		len,
+	struct ep_data	*epdata,
+	char __user	*ubuf
+)
 {
 	struct kiocb_priv	*priv = (void *) &iocb->private;
 	struct usb_request	*req;
 	ssize_t			value;
 
-	value = get_ready_ep(iocb->ki_filp->f_flags, epdata);
-	if (unlikely(value < 0)) {
+	priv = kmalloc(sizeof *priv, GFP_KERNEL);
+	if (!priv) {
+		value = -ENOMEM;
+fail:
 		kfree(buf);
 		return value;
 	}
+	iocb->private = priv;
+	priv->ubuf = ubuf;
+
+	value = get_ready_ep(iocb->ki_filp->f_flags, epdata);
+	if (unlikely(value < 0)) {
+		kfree(priv);
+		goto fail;
+	}
 
 	iocb->ki_cancel = ep_aio_cancel;
 	get_ep(epdata);
@@ -671,9 +665,10 @@ ep_aio_rwtail(struct kiocb *iocb, char *buf, size_t len, struct ep_data *epdata)
 
 	up(&epdata->lock);
 
-	if (unlikely(value))
+	if (unlikely(value)) {
+		kfree(priv);
 		put_ep(epdata);
-	else
+	} else
 		value = -EIOCBQUEUED;
 	return value;
 }
@@ -681,7 +676,6 @@ ep_aio_rwtail(struct kiocb *iocb, char *buf, size_t len, struct ep_data *epdata)
 static ssize_t
 ep_aio_read(struct kiocb *iocb, char __user *ubuf, size_t len, loff_t o)
 {
-	struct kiocb_priv	*priv = (void *) &iocb->private;
 	struct ep_data		*epdata = iocb->ki_filp->private_data;
 	char			*buf;
 
@@ -691,8 +685,7 @@ ep_aio_read(struct kiocb *iocb, char __user *ubuf, size_t len, loff_t o)
 	if (unlikely(!buf))
 		return -ENOMEM;
 	iocb->ki_retry = ep_aio_read_retry;
-	priv->ubuf = ubuf;
-	return ep_aio_rwtail(iocb, buf, len, epdata);
+	return ep_aio_rwtail(iocb, buf, len, epdata, ubuf);
 }
 
 static ssize_t
@@ -710,7 +703,7 @@ ep_aio_write(struct kiocb *iocb, const char __user *ubuf, size_t len, loff_t o)
 		kfree(buf);
 		return -EFAULT;
 	}
-	return ep_aio_rwtail(iocb, buf, len, epdata);
+	return ep_aio_rwtail(iocb, buf, len, epdata, 0);
 }
 
 /*----------------------------------------------------------------------*/
@@ -718,6 +711,8 @@ ep_aio_write(struct kiocb *iocb, const char __user *ubuf, size_t len, loff_t o)
 /* used after endpoint configuration */
 static struct file_operations ep_io_operations = {
 	.owner =	THIS_MODULE,
+	.llseek =	no_llseek,
+
 	.read =		ep_read,
 	.write =	ep_write,
 	.ioctl =	ep_ioctl,
@@ -874,6 +869,8 @@ ep_open (struct inode *inode, struct file *fd)
 /* used before endpoint configuration */
 static struct file_operations ep_config_operations = {
 	.owner =	THIS_MODULE,
+	.llseek =	no_llseek,
+
 	.open =		ep_open,
 	.write =	ep_config,
 	.release =	ep_release,
@@ -980,6 +977,18 @@ ep0_read (struct file *fd, char __user *buf, size_t len, loff_t *ptr)
 				retval = usb_ep_queue (ep, req, GFP_ATOMIC);
 			dev->state = STATE_CONNECTED;
 
+			/* assume that was SET_CONFIGURATION */
+			if (dev->current_config) {
+				unsigned power;
+#ifdef	HIGHSPEED
+				if (dev->gadget->speed == USB_SPEED_HIGH)
+					power = dev->hs_config->bMaxPower;
+				else
+#endif
+					power = dev->config->bMaxPower;
+				usb_gadget_vbus_draw(dev->gadget, 2 * power);
+			}
+
 		} else {			/* collect OUT data */
 			if ((fd->f_flags & O_NONBLOCK) != 0
 					&& !dev->setup_out_ready) {
@@ -1230,6 +1239,8 @@ static int dev_ioctl (struct inode *inode, struct file *fd,
 /* used after device configuration */
 static struct file_operations ep0_io_operations = {
 	.owner =	THIS_MODULE,
+	.llseek =	no_llseek,
+
 	.read =		ep0_read,
 	.write =	ep0_write,
 	.fasync =	ep0_fasync,
@@ -1406,19 +1417,25 @@ gadgetfs_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
 		if (0 == (u8) ctrl->wValue) {
 			value = 0;
 			dev->current_config = 0;
+			usb_gadget_vbus_draw(gadget, 8 /* mA */ );
 			// user mode expected to disable endpoints
 		} else {
-			u8	config;
+			u8	config, power;
 #ifdef	HIGHSPEED
-			if (gadget->speed == USB_SPEED_HIGH)
+			if (gadget->speed == USB_SPEED_HIGH) {
 				config = dev->hs_config->bConfigurationValue;
-			else
+				power = dev->hs_config->bMaxPower;
+			} else
 #endif
+			{
 				config = dev->config->bConfigurationValue;
+				power = dev->config->bMaxPower;
+			}
 
 			if (config == (u8) ctrl->wValue) {
 				value = 0;
 				dev->current_config = config;
+				usb_gadget_vbus_draw(gadget, 2 * power);
 			}
 		}
 
@@ -1636,8 +1653,8 @@ gadgetfs_bind (struct usb_gadget *gadget)
 	if (!dev)
 		return -ESRCH;
 	if (0 != strcmp (CHIP, gadget->name)) {
-		printk (KERN_ERR "%s expected " CHIP " controller not %s\n",
-			shortname, gadget->name);
+		printk (KERN_ERR "%s expected %s controller not %s\n",
+			shortname, CHIP, gadget->name);
 		return -ENODEV;
 	}
 
@@ -1727,6 +1744,26 @@ static struct usb_gadget_driver gadgetfs_driver = {
 
 /*----------------------------------------------------------------------*/
 
+static void gadgetfs_nop(struct usb_gadget *arg) { }
+
+static int gadgetfs_probe (struct usb_gadget *gadget)
+{
+	CHIP = gadget->name;
+	return -EISNAM;
+}
+
+static struct usb_gadget_driver probe_driver = {
+	.speed		= USB_SPEED_HIGH,
+	.bind		= gadgetfs_probe,
+	.unbind		= gadgetfs_nop,
+	.setup		= (void *)gadgetfs_nop,
+	.disconnect	= gadgetfs_nop,
+	.driver 	= {
+		.name		= "nop",
+	},
+};
+
+
 /* DEVICE INITIALIZATION
  *
  *     fd = open ("/dev/gadget/$CHIP", O_RDWR)
@@ -1763,6 +1800,7 @@ static int is_valid_config (struct usb_config_descriptor *config)
 		&& config->bConfigurationValue != 0
 		&& (config->bmAttributes & USB_CONFIG_ATT_ONE) != 0
 		&& (config->bmAttributes & USB_CONFIG_ATT_WAKEUP) == 0;
+	/* FIXME if gadget->is_otg, _must_ include an otg descriptor */
 	/* FIXME check lengths: walk to end */
 }
 
@@ -1881,6 +1919,8 @@ dev_open (struct inode *inode, struct file *fd)
 
 static struct file_operations dev_init_operations = {
 	.owner =	THIS_MODULE,
+	.llseek =	no_llseek,
+
 	.open =		dev_open,
 	.write =	dev_config,
 	.fasync =	ep0_fasync,
@@ -1976,6 +2016,11 @@ gadgetfs_fill_super (struct super_block *sb, void *opts, int silent)
 	if (the_device)
 		return -ESRCH;
 
+	/* fake probe to determine $CHIP */
+	(void) usb_gadget_register_driver (&probe_driver);
+	if (!CHIP)
+		return -ENODEV;
+
 	/* superblock */
 	sb->s_blocksize = PAGE_CACHE_SIZE;
 	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;

drivers/usb/gadget/lh7a40x_udc.h

+/*
+ * linux/drivers/usb/gadget/lh7a40x_udc.h
+ * Sharp LH7A40x on-chip full speed USB device controllers
+ *
+ * Copyright (C) 2004 Mikko Lahteenmaki, Nordic ID
+ * Copyright (C) 2004 Bo Henriksen, Nordic ID
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#ifndef __LH7A40X_H_
+#define __LH7A40X_H_
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/types.h>
+#include <linux/version.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/timer.h>
+#include <linux/list.h>
+#include <linux/interrupt.h>
+#include <linux/proc_fs.h>
+#include <linux/mm.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+
+#include <asm/byteorder.h>
+#include <asm/dma.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/system.h>
+#include <asm/unaligned.h>
+#include <asm/hardware.h>
+
+#include <linux/usb_ch9.h>
+#include <linux/usb_gadget.h>
+
+/*
+ * Memory map
+ */
+
+#define USB_FA					0x80000200	// function address register
+#define USB_PM					0x80000204	// power management register
+
+#define USB_IN_INT				0x80000208	// IN interrupt register bank (EP0-EP3)
+#define USB_OUT_INT				0x80000210	// OUT interrupt register bank (EP2)
+#define USB_INT					0x80000218	// interrupt register bank
+
+#define USB_IN_INT_EN			0x8000021C	// IN interrupt enable register bank
+#define USB_OUT_INT_EN			0x80000224	// OUT interrupt enable register bank
+#define USB_INT_EN				0x8000022C	// USB interrupt enable register bank
+
+#define USB_FRM_NUM1			0x80000230	// Frame number1 register
+#define USB_FRM_NUM2			0x80000234	// Frame number2 register
+#define USB_INDEX				0x80000238	// index register
+
+#define USB_IN_MAXP				0x80000240	// IN MAXP register
+#define USB_IN_CSR1				0x80000244	// IN CSR1 register/EP0 CSR register
+#define USB_EP0_CSR				0x80000244	// IN CSR1 register/EP0 CSR register
+#define USB_IN_CSR2				0x80000248	// IN CSR2 register
+#define USB_OUT_MAXP			0x8000024C	// OUT MAXP register
+
+#define USB_OUT_CSR1			0x80000250	// OUT CSR1 register
+#define USB_OUT_CSR2			0x80000254	// OUT CSR2 register
+#define USB_OUT_FIFO_WC1		0x80000258	// OUT FIFO write count1 register
+#define USB_OUT_FIFO_WC2		0x8000025C	// OUT FIFO write count2 register
+
+#define USB_RESET				0x8000044C	// USB reset register
+
+#define	USB_EP0_FIFO			0x80000280
+#define	USB_EP1_FIFO			0x80000284
+#define	USB_EP2_FIFO			0x80000288
+#define	USB_EP3_FIFO			0x8000028c
+
+/*
+ * USB reset register
+ */
+#define USB_RESET_APB			(1<<1)	//resets USB APB control side WRITE
+#define USB_RESET_IO			(1<<0)	//resets USB IO side WRITE
+
+/*
+ * USB function address register
+ */
+#define USB_FA_ADDR_UPDATE		(1<<7)
+#define USB_FA_FUNCTION_ADDR	(0x7F)
+
+/*
+ * Power Management register
+ */
+#define PM_USB_DCP				(1<<5)
+#define PM_USB_ENABLE			(1<<4)
+#define PM_USB_RESET			(1<<3)
+#define PM_UC_RESUME			(1<<2)
+#define PM_SUSPEND_MODE			(1<<1)
+#define PM_ENABLE_SUSPEND		(1<<0)
+
+/*
+ * IN interrupt register
+ */
+#define USB_IN_INT_EP3				(1<<3)
+#define USB_IN_INT_EP1				(1<<1)
+#define USB_IN_INT_EP0				(1<<0)
+
+/*
+ * OUT interrupt register
+ */
+#define USB_OUT_INT_EP2				(1<<2)
+
+/*
+ * USB interrupt register
+ */
+#define USB_INT_RESET_INT			(1<<2)
+#define USB_INT_RESUME_INT			(1<<1)
+#define USB_INT_SUSPEND_INT			(1<<0)
+
+/*
+ * USB interrupt enable register
+ */
+#define USB_INT_EN_USB_RESET_INTER		(1<<2)
+#define USB_INT_EN_RESUME_INTER			(1<<1)
+#define USB_INT_EN_SUSPEND_INTER		(1<<0)
+
+/*
+ * INCSR1 register
+ */
+#define USB_IN_CSR1_CLR_DATA_TOGGLE		(1<<6)
+#define USB_IN_CSR1_SENT_STALL			(1<<5)
+#define USB_IN_CSR1_SEND_STALL			(1<<4)
+#define USB_IN_CSR1_FIFO_FLUSH			(1<<3)
+#define USB_IN_CSR1_FIFO_NOT_EMPTY		(1<<1)
+#define USB_IN_CSR1_IN_PKT_RDY			(1<<0)
+
+/*
+ * INCSR2 register
+ */
+#define USB_IN_CSR2_AUTO_SET			(1<<7)
+#define USB_IN_CSR2_USB_DMA_EN			(1<<4)
+
+/*
+ * OUT CSR1 register
+ */
+#define USB_OUT_CSR1_CLR_DATA_REG		(1<<7)
+#define USB_OUT_CSR1_SENT_STALL			(1<<6)
+#define USB_OUT_CSR1_SEND_STALL			(1<<5)
+#define USB_OUT_CSR1_FIFO_FLUSH			(1<<4)
+#define USB_OUT_CSR1_FIFO_FULL			(1<<1)
+#define USB_OUT_CSR1_OUT_PKT_RDY		(1<<0)
+
+/*
+ * OUT CSR2 register
+ */
+#define USB_OUT_CSR2_AUTO_CLR			(1<<7)
+#define USB_OUT_CSR2_USB_DMA_EN			(1<<4)
+
+/*
+ * EP0 CSR
+ */
+#define EP0_CLR_SETUP_END		(1<<7)	/* Clear "Setup Ends" Bit (w) */
+#define EP0_CLR_OUT				(1<<6)	/* Clear "Out packet ready" Bit (w) */
+#define EP0_SEND_STALL			(1<<5)	/* Send STALL Handshake (rw) */
+#define EP0_SETUP_END			(1<<4)	/* Setup Ends (r) */
+
+#define EP0_DATA_END			(1<<3)	/* Data end (rw) */
+#define EP0_SENT_STALL			(1<<2)	/* Sent Stall Handshake (r) */
+#define EP0_IN_PKT_RDY			(1<<1)	/* In packet ready (rw) */
+#define EP0_OUT_PKT_RDY			(1<<0)	/* Out packet ready (r) */
+
+/* general CSR */
+#define OUT_PKT_RDY		(1<<0)
+#define IN_PKT_RDY		(1<<0)
+
+/*
+ * IN/OUT MAXP register
+ */
+#define USB_OUT_MAXP_MAXP			(0xF)
+#define USB_IN_MAXP_MAXP			(0xF)
+
+// Max packet size
+//#define EP0_PACKETSIZE        0x10
+#define EP0_PACKETSIZE  	0x8
+#define EP0_MAXPACKETSIZE  	0x10
+
+#define UDC_MAX_ENDPOINTS       4
+
+#define WAIT_FOR_SETUP          0
+#define DATA_STATE_XMIT         1
+#define DATA_STATE_NEED_ZLP     2
+#define WAIT_FOR_OUT_STATUS     3
+#define DATA_STATE_RECV         4
+
+/* ********************************************************************************************* */
+/* IO
+ */
+
+typedef enum ep_type {
+	ep_control, ep_bulk_in, ep_bulk_out, ep_interrupt
+} ep_type_t;
+
+struct lh7a40x_ep {
+	struct usb_ep ep;
+	struct lh7a40x_udc *dev;
+
+	const struct usb_endpoint_descriptor *desc;
+	struct list_head queue;
+	unsigned long pio_irqs;
+
+	u8 stopped;
+	u8 bEndpointAddress;
+	u8 bmAttributes;
+
+	ep_type_t ep_type;
+	u32 fifo;
+	u32 csr1;
+	u32 csr2;
+};
+
+struct lh7a40x_request {
+	struct usb_request req;
+	struct list_head queue;
+};
+
+struct lh7a40x_udc {
+	struct usb_gadget gadget;
+	struct usb_gadget_driver *driver;
+	struct device *dev;
+	spinlock_t lock;
+
+	int ep0state;
+	struct lh7a40x_ep ep[UDC_MAX_ENDPOINTS];
+
+	unsigned char usb_address;
+
+	unsigned req_pending:1, req_std:1, req_config:1;
+};
+
+extern struct lh7a40x_udc *the_controller;
+
+#define ep_is_in(EP) 		(((EP)->bEndpointAddress&USB_DIR_IN)==USB_DIR_IN)
+#define ep_index(EP) 		((EP)->bEndpointAddress&0xF)
+#define ep_maxpacket(EP) 	((EP)->ep.maxpacket)
+
+#endif

drivers/usb/gadget/net2280.c

@@ -307,7 +307,6 @@ static void ep_reset (struct net2280_regs *regs, struct net2280_ep *ep)
 		| (1 << SET_NAK_OUT_PACKETS)
 		| (1 << CLEAR_EP_HIDE_STATUS_PHASE)
 		| (1 << CLEAR_INTERRUPT_MODE)
-		| (1 << CLEAR_CONTROL_STATUS_PHASE_HANDSHAKE)
 		| (1 << CLEAR_ENDPOINT_TOGGLE)
 		| (1 << CLEAR_ENDPOINT_HALT)
 		, &ep->regs->ep_rsp);
@@ -2511,15 +2510,23 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
 static void handle_stat1_irqs (struct net2280 *dev, u32 stat)
 {
 	struct net2280_ep	*ep;
-	u32			tmp, num, scratch;
+	u32			tmp, num, mask, scratch;
 
 	/* after disconnect there's nothing else to do! */
 	tmp = (1 << VBUS_INTERRUPT) | (1 << ROOT_PORT_RESET_INTERRUPT);
+	mask = (1 << HIGH_SPEED) | (1 << FULL_SPEED);
+
+	/* VBUS disconnect is indicated by VBUS_PIN and VBUS_INTERRUPT set.
+	 * Root Port Reset is indicated by ROOT_PORT_RESET_INTERRRUPT set and
+	 * both HIGH_SPEED and FULL_SPEED clear (as ROOT_PORT_RESET_INTERRUPT 
+	 * only indicates a change in the reset state).
+	 */
 	if (stat & tmp) {
 		writel (tmp, &dev->regs->irqstat1);
-		if (((stat & (1 << ROOT_PORT_RESET_INTERRUPT)) != 0
-			|| (readl (&dev->usb->usbctl) & (1 << VBUS_PIN)) == 0
-			) && dev->gadget.speed != USB_SPEED_UNKNOWN) {
+		if ((((stat & (1 << ROOT_PORT_RESET_INTERRUPT)) && 
+				((readl (&dev->usb->usbstat) & mask) == 0))
+				|| ((readl (&dev->usb->usbctl) & (1 << VBUS_PIN)) == 0) 
+			    ) && ( dev->gadget.speed != USB_SPEED_UNKNOWN)) {
 			DEBUG (dev, "disconnect %s\n",
 					dev->driver->driver.name);
 			stop_activity (dev, dev->driver);

drivers/usb/gadget/omap_udc.h

+/*
+ * omap_udc.h -- for omap 3.2 udc, with OTG support
+ *
+ * 2004 (C) Texas Instruments, Inc.
+ * 2004 (C) David Brownell
+ */
+
+/*
+ * USB device/endpoint management registers
+ */
+#define UDC_REG(offset)              __REG16(UDC_BASE + (offset))
+
+#define	UDC_REV_REG			UDC_REG(0x0)	/* Revision */
+#define	UDC_EP_NUM_REG			UDC_REG(0x4)	/* Which endpoint */
+#	define	UDC_SETUP_SEL		(1 << 6)
+#	define	UDC_EP_SEL		(1 << 5)
+#	define	UDC_EP_DIR		(1 << 4)
+	/* low 4 bits for endpoint number */
+#define	UDC_DATA_REG			UDC_REG(0x08)	/* Endpoint FIFO */
+#define	UDC_CTRL_REG			UDC_REG(0x0C)	/* Endpoint control */
+#	define	UDC_CLR_HALT		(1 << 7)
+#	define	UDC_SET_HALT		(1 << 6)
+#	define	UDC_SET_FIFO_EN		(1 << 2)
+#	define	UDC_CLR_EP		(1 << 1)
+#	define	UDC_RESET_EP		(1 << 0)
+#define	UDC_STAT_FLG_REG		UDC_REG(0x10)	/* Endpoint status */
+#	define	UDC_NO_RXPACKET		(1 << 15)
+#	define	UDC_MISS_IN		(1 << 14)
+#	define	UDC_DATA_FLUSH		(1 << 13)
+#	define	UDC_ISO_ERR		(1 << 12)
+#	define	UDC_ISO_FIFO_EMPTY	(1 << 9)
+#	define	UDC_ISO_FIFO_FULL	(1 << 8)
+#	define	UDC_EP_HALTED		(1 << 6)
+#	define	UDC_STALL		(1 << 5)
+#	define	UDC_NAK			(1 << 4)
+#	define	UDC_ACK			(1 << 3)
+#	define	UDC_FIFO_EN		(1 << 2)
+#	define	UDC_NON_ISO_FIFO_EMPTY	(1 << 1)
+#	define	UDC_NON_ISO_FIFO_FULL	(1 << 0)
+#define	UDC_RXFSTAT_REG			UDC_REG(0x14)	/* OUT bytecount */
+#define	UDC_SYSCON1_REG			UDC_REG(0x18)	/* System config 1 */
+#	define	UDC_CFG_LOCK		(1 << 8)
+#	define	UDC_DATA_ENDIAN		(1 << 7)
+#	define	UDC_DMA_ENDIAN		(1 << 6)
+#	define	UDC_NAK_EN		(1 << 4)
+#	define	UDC_AUTODECODE_DIS	(1 << 3)
+#	define	UDC_SELF_PWR		(1 << 2)
+#	define	UDC_SOFF_DIS		(1 << 1)
+#	define	UDC_PULLUP_EN		(1 << 0)
+#define	UDC_SYSCON2_REG			UDC_REG(0x1C)	/* System config 2 */
+#	define	UDC_RMT_WKP		(1 << 6)
+#	define	UDC_STALL_CMD		(1 << 5)
+#	define	UDC_DEV_CFG		(1 << 3)
+#	define	UDC_CLR_CFG		(1 << 2)
+#define	UDC_DEVSTAT_REG			UDC_REG(0x20)	/* Device status */
+#	define	UDC_B_HNP_ENABLE	(1 << 9)
+#	define	UDC_A_HNP_SUPPORT	(1 << 8)
+#	define	UDC_A_ALT_HNP_SUPPORT	(1 << 7)
+#	define	UDC_R_WK_OK		(1 << 6)
+#	define	UDC_USB_RESET		(1 << 5)
+#	define	UDC_SUS			(1 << 4)
+#	define	UDC_CFG			(1 << 3)
+#	define	UDC_ADD			(1 << 2)
+#	define	UDC_DEF			(1 << 1)
+#	define	UDC_ATT			(1 << 0)
+#define	UDC_SOF_REG			UDC_REG(0x24)	/* Start of frame */
+#	define	UDC_FT_LOCK		(1 << 12)
+#	define	UDC_TS_OK		(1 << 11)
+#	define	UDC_TS			0x03ff
+#define	UDC_IRQ_EN_REG			UDC_REG(0x28)	/* Interrupt enable */
+#	define	UDC_SOF_IE		(1 << 7)
+#	define	UDC_EPN_RX_IE		(1 << 5)
+#	define	UDC_EPN_TX_IE		(1 << 4)
+#	define	UDC_DS_CHG_IE		(1 << 3)
+#	define	UDC_EP0_IE		(1 << 0)
+#define	UDC_DMA_IRQ_EN_REG		UDC_REG(0x2C)	/* DMA irq enable */
+	/* rx/tx dma channels numbered 1-3 not 0-2 */
+#	define	UDC_TX_DONE_IE(n)	(1 << (4 * (n) - 2))
+#	define	UDC_RX_CNT_IE(n)	(1 << (4 * (n) - 3))
+#	define	UDC_RX_EOT_IE(n)	(1 << (4 * (n) - 4))
+#define	UDC_IRQ_SRC_REG			UDC_REG(0x30)	/* Interrupt source */
+#	define	UDC_TXN_DONE		(1 << 10)
+#	define	UDC_RXN_CNT		(1 << 9)
+#	define	UDC_RXN_EOT		(1 << 8)
+#	define	UDC_SOF			(1 << 7)
+#	define	UDC_EPN_RX		(1 << 5)
+#	define	UDC_EPN_TX		(1 << 4)
+#	define	UDC_DS_CHG		(1 << 3)
+#	define	UDC_SETUP		(1 << 2)
+#	define	UDC_EP0_RX		(1 << 1)
+#	define	UDC_EP0_TX		(1 << 0)
+#	define	UDC_IRQ_SRC_MASK	0x7bf
+#define	UDC_EPN_STAT_REG		UDC_REG(0x34)	/* EP irq status */
+#define	UDC_DMAN_STAT_REG		UDC_REG(0x38)	/* DMA irq status */
+#	define	UDC_DMA_RX_SB		(1 << 12)
+#	define	UDC_DMA_RX_SRC(x)	(((x)>>8) & 0xf)
+#	define	UDC_DMA_TX_SRC(x)	(((x)>>0) & 0xf)
+
+
+/* DMA configuration registers:  up to three channels in each direction.  */
+#define	UDC_RXDMA_CFG_REG		UDC_REG(0x40)	/* 3 eps for RX DMA */
+#define	UDC_TXDMA_CFG_REG		UDC_REG(0x44)	/* 3 eps for TX DMA */
+#define	UDC_DATA_DMA_REG		UDC_REG(0x48)	/* rx/tx fifo addr */
+
+/* rx/tx dma control, numbering channels 1-3 not 0-2 */
+#define	UDC_TXDMA_REG(chan)		UDC_REG(0x50 - 4 + 4 * (chan))
+#	define UDC_TXN_EOT		(1 << 15)	/* bytes vs packets */
+#	define UDC_TXN_START		(1 << 14)	/* start transfer */
+#	define UDC_TXN_TSC		0x03ff		/* units in xfer */
+#define	UDC_RXDMA_REG(chan)		UDC_REG(0x60 - 4 + 4 * (chan))
+#	define UDC_RXN_STOP		(1 << 15)	/* enable EOT irq */
+#	define UDC_RXN_TC		0x00ff		/* packets in xfer */
+
+
+/*
+ * Endpoint configuration registers (used before CFG_LOCK is set)
+ * UDC_EP_TX_REG(0) is unused
+ */
+#define	UDC_EP_RX_REG(endpoint)		UDC_REG(0x80 + (endpoint)*4)
+#	define	UDC_EPN_RX_VALID	(1 << 15)
+#	define	UDC_EPN_RX_DB		(1 << 14)
+	/* buffer size in bits 13, 12 */
+#	define	UDC_EPN_RX_ISO		(1 << 11)
+	/* buffer pointer in low 11 bits */
+#define	UDC_EP_TX_REG(endpoint)		UDC_REG(0xc0 + (endpoint)*4)
+	/* same bitfields as in RX_REG */
+
+/*-------------------------------------------------------------------------*/
+
+struct omap_req {
+	struct usb_request		req;
+	struct list_head		queue;
+	unsigned			dma_bytes;
+	unsigned			mapped:1;
+};
+
+struct omap_ep {
+	struct usb_ep			ep;
+	struct list_head		queue;
+	unsigned long			irqs;
+	struct list_head		iso;
+	const struct usb_endpoint_descriptor	*desc;
+	char				name[14];
+	u16				maxpacket;
+	u8				bEndpointAddress;
+	u8				bmAttributes;
+	unsigned			double_buf:1;
+	unsigned			stopped:1;
+	unsigned			ackwait:1;
+	unsigned			has_dma:1;
+	u8				dma_channel;
+	int				lch;
+	struct omap_udc			*udc;
+};
+
+struct omap_udc {
+	struct usb_gadget		gadget;
+	struct usb_gadget_driver	*driver;
+	spinlock_t			lock;
+	struct omap_ep			ep[32];
+	u16				devstat;
+	struct otg_transceiver		*transceiver;
+	struct list_head		iso;
+	unsigned			softconnect:1;
+	unsigned			vbus_active:1;
+	unsigned			ep0_pending:1;
+	unsigned			ep0_in:1;
+	unsigned			ep0_set_config:1;
+	unsigned			ep0_reset_config:1;
+	unsigned			ep0_setup:1;
+	unsigned			hmc:6;
+
+	struct completion		*done;
+};
+
+/*-------------------------------------------------------------------------*/
+
+#ifdef DEBUG
+#define DBG(stuff...)		printk(KERN_DEBUG "udc: " stuff)
+#else
+#define DBG(stuff...)		do{}while(0)
+#endif
+
+#ifdef VERBOSE
+#    define VDBG		DBG
+#else
+#    define VDBG(stuff...)	do{}while(0)
+#endif
+
+#define ERR(stuff...)		printk(KERN_ERR "udc: " stuff)
+#define WARN(stuff...)		printk(KERN_WARNING "udc: " stuff)
+#define INFO(stuff...)		printk(KERN_INFO "udc: " stuff)
+
+/*-------------------------------------------------------------------------*/
+
+// #define	HMC_1510	((MOD_CONF_CTRL_0_REG >> 1) & 0x3f)
+#define	HMC_1610	(OTG_SYSCON_2_REG & 0x3f)
+#define	HMC		 HMC_1610
+

drivers/usb/gadget/serial.c

@@ -1299,6 +1299,9 @@ static int gs_bind(struct usb_gadget *gadget)
 	} else if (gadget_is_omap(gadget)) {
 		gs_device_desc.bcdDevice =
 			__constant_cpu_to_le16(GS_VERSION_NUM|0x0007);
+	} else if (gadget_is_lh7a40x(gadget)) {
+		gs_device_desc.bcdDevice =
+			__constant_cpu_to_le16(GS_VERSION_NUM|0x0008);
 	} else {
 		printk(KERN_WARNING "gs_bind: controller '%s' not recognized\n",
 			gadget->name);

drivers/usb/gadget/zero.c

@@ -399,7 +399,7 @@ static const struct usb_descriptor_header *hs_loopback_function [] = {
 static char				manufacturer [40];
 static char				serial [40];
 
-/* static strings, in iso 8859/1 */
+/* static strings, in UTF-8 */
 static struct usb_string		strings [] = {
 	{ STRING_MANUFACTURER, manufacturer, },
 	{ STRING_PRODUCT, longname, },
@@ -960,7 +960,8 @@ zero_setup (struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
 		case USB_DT_STRING:
 			/* wIndex == language code.
 			 * this driver only handles one language, you can
-			 * add others even if they don't use iso8859/1
+			 * add string tables for other languages, using
+			 * any UTF-8 characters
 			 */
 			value = usb_gadget_get_string (&stringtab,
 					ctrl->wValue & 0xff, req->buf);
@@ -1185,6 +1186,8 @@ zero_bind (struct usb_gadget *gadget)
 		device_desc.bcdDevice = __constant_cpu_to_le16 (0x0207);
 	} else if (gadget_is_omap (gadget)) {
 		device_desc.bcdDevice = __constant_cpu_to_le16 (0x0208);
+	} else if (gadget_is_lh7a40x(gadget)) {
+		device_desc.bcdDevice = __constant_cpu_to_le16 (0x0209);
 	} else {
 		/* gadget zero is so simple (for now, no altsettings) that
 		 * it SHOULD NOT have problems with bulk-capable hardware.
@@ -1236,6 +1239,12 @@ zero_bind (struct usb_gadget *gadget)
 		loopback_config.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
 	}
 
+	if (gadget->is_otg) {
+		otg_descriptor.bmAttributes |= USB_OTG_HNP,
+		source_sink_config.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
+		loopback_config.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
+	}
+
 	usb_gadget_set_selfpowered (gadget);
 
 	init_timer (&dev->resume);

drivers/usb/host/Kconfig

@@ -52,6 +52,7 @@ config USB_EHCI_ROOT_HUB_TT
 config USB_OHCI_HCD
 	tristate "OHCI HCD support"
 	depends on USB
+	select ISP1301_OMAP if MACH_OMAP_H2
 	---help---
 	  The Open Host Controller Interface (OHCI) is a standard for accessing
 	  USB 1.1 host controller hardware.  It does more in hardware than Intel's

drivers/usb/host/ohci-hcd.c

@@ -97,6 +97,7 @@
 #include <linux/list.h>
 #include <linux/interrupt.h>  /* for in_interrupt () */
 #include <linux/usb.h>
+#include <linux/usb_otg.h>
 #include "../core/hcd.h"
 #include <linux/dma-mapping.h> 
 #include <linux/dmapool.h>    /* needed by ohci-mem.c when no PCI */
@@ -693,7 +694,7 @@ static void ohci_stop (struct usb_hcd *hcd)
 
 /* must not be called from interrupt context */
 
-#ifdef CONFIG_PM
+#if	defined(CONFIG_USB_SUSPEND) || defined(CONFIG_PM)
 
 static void mark_children_gone (struct usb_device *dev)
 {

drivers/usb/host/ohci-hub.c

@@ -435,6 +435,89 @@ ohci_hub_descriptor (
 
 /*-------------------------------------------------------------------------*/
 
+#ifdef	CONFIG_USB_OTG
+
+static int ohci_start_port_reset (struct usb_hcd *hcd, unsigned port)
+{
+	struct ohci_hcd	*ohci = hcd_to_ohci (hcd);
+	u32			status;
+
+	if (!port)
+		return -EINVAL;
+	port--;
+
+	/* start port reset before HNP protocol times out */
+	status = ohci_readl(&ohci->regs->roothub.portstatus [port]);
+	if (!(status & RH_PS_CCS))
+		return -ENODEV;
+
+	/* khubd will finish the reset later */
+	writel(RH_PS_PRS, &ohci->regs->roothub.portstatus [port]);
+	return 0;
+}
+
+static void start_hnp(struct ohci_hcd *ohci);
+
+#else
+
+#define	ohci_start_port_reset		NULL
+
+#endif
+
+/*-------------------------------------------------------------------------*/
+
+
+/* See usb 7.1.7.5:  root hubs must issue at least 50 msec reset signaling,
+ * not necessarily continuous ... to guard against resume signaling.
+ * The short timeout is safe for non-root hubs, and is backward-compatible
+ * with earlier Linux hosts.
+ */
+#ifdef	CONFIG_USB_SUSPEND
+#define	PORT_RESET_MSEC		50
+#else
+#define	PORT_RESET_MSEC		10
+#endif
+
+/* this timer value might be vendor-specific ... */
+#define	PORT_RESET_HW_MSEC	10
+
+/* wrap-aware logic stolen from <linux/jiffies.h> */
+#define tick_before(t1,t2) ((((s16)(t1))-((s16)(t2))) < 0)
+
+/* called from some task, normally khubd */
+static inline void root_port_reset (struct ohci_hcd *ohci, unsigned port)
+{
+	u32	*portstat = &ohci->regs->roothub.portstatus [port];
+	u32	temp;
+	u16	now = readl(&ohci->regs->fmnumber);
+	u16	reset_done = now + PORT_RESET_MSEC;
+
+	/* build a "continuous enough" reset signal, with up to
+	 * 3msec gap between pulses.  scheduler HZ==100 must work;
+	 * this might need to be deadline-scheduled.
+	 */
+	do {
+		/* spin until any current reset finishes */
+		for (;;) {
+			temp = ohci_readl (portstat);
+			if (!(temp & RH_PS_PRS))
+				break;
+			udelay (500);
+		} 
+
+		if (!(temp & RH_PS_CCS))
+			break;
+		if (temp & RH_PS_PRSC)
+			writel (RH_PS_PRSC, portstat);
+
+		/* start the next reset, sleep till it's probably done */
+		writel (RH_PS_PRS, portstat);
+		msleep(PORT_RESET_HW_MSEC);
+		now = readl(&ohci->regs->fmnumber);
+	} while (tick_before(now, reset_done));
+	/* caller synchronizes using PRSC */
+}
+
 static int ohci_hub_control (
 	struct usb_hcd	*hcd,
 	u16		typeReq,
@@ -533,6 +616,12 @@ static int ohci_hub_control (
 		wIndex--;
 		switch (wValue) {
 		case USB_PORT_FEAT_SUSPEND:
+#ifdef	CONFIG_USB_OTG
+			if (ohci->hcd.self.otg_port == (wIndex + 1)
+					&& ohci->hcd.self.b_hnp_enable)
+				start_hnp(ohci);
+			else
+#endif
 			writel (RH_PS_PSS,
 				&ohci->regs->roothub.portstatus [wIndex]);
 			break;
@@ -541,10 +630,7 @@ static int ohci_hub_control (
 				&ohci->regs->roothub.portstatus [wIndex]);
 			break;
 		case USB_PORT_FEAT_RESET:
-			temp = ohci_readl (&ohci->regs->roothub.portstatus [wIndex]);
-			if (temp & RH_PS_CCS)
-				writel (RH_PS_PRS,
-				    &ohci->regs->roothub.portstatus [wIndex]);
+			root_port_reset (ohci, wIndex);
 			break;
 		default:
 			goto error;

drivers/usb/host/ohci-pci.c

@@ -242,6 +242,7 @@ static const struct hc_driver ohci_pci_hc_driver = {
 	.hub_suspend =		ohci_hub_suspend,
 	.hub_resume =		ohci_hub_resume,
 #endif
+	.start_port_reset =	ohci_start_port_reset,
 };
 
 /*-------------------------------------------------------------------------*/
@@ -276,7 +277,7 @@ static int __init ohci_hcd_pci_init (void)
 	if (usb_disabled())
 		return -ENODEV;
 
-	printk (KERN_DEBUG "%s: block sizes: ed %Zd td %Zd\n", hcd_name,
+	pr_debug ("%s: block sizes: ed %Zd td %Zd\n", hcd_name,
 		sizeof (struct ed), sizeof (struct td));
 	return pci_module_init (&ohci_pci_driver);
 }

drivers/usb/host/ohci-q.c

@@ -900,9 +900,6 @@ static struct td *dl_reverse_done_list (struct ohci_hcd *ohci)
 
 /*-------------------------------------------------------------------------*/
 
-/* wrap-aware logic stolen from <linux/jiffies.h> */
-#define tick_before(t1,t2) ((((s16)(t1))-((s16)(t2))) < 0)
-
 /* there are some urbs/eds to unlink; called in_irq(), with HCD locked */
 static void
 finish_unlinks (struct ohci_hcd *ohci, u16 tick, struct pt_regs *regs)

drivers/usb/host/ohci.h

@@ -359,6 +359,13 @@ struct ohci_hcd {
 	struct ed		*ed_controltail;	/* last in ctrl list */
  	struct ed		*periodic [NUM_INTS];	/* shadow int_table */
 
+	/*
+	 * OTG controllers and transceivers need software interaction;
+	 * other external transceivers should be software-transparent 
+	 */
+	struct otg_transceiver	*transceiver;
+	unsigned		power_budget;
+
 	/*
 	 * memory management for queue data structures
 	 */

drivers/usb/media/stv680.c

@@ -704,7 +704,6 @@ static int stv680_start_stream (struct usb_stv *stv680)
 				   usb_rcvbulkpipe (stv680->udev, stv680->bulk_in_endpointAddr),
 				   stv680->sbuf[i].data, stv680->rawbufsize,
 				   stv680_video_irq, stv680);
-		urb->timeout = PENCAM_TIMEOUT * 2;
 		stv680->urb[i] = urb;
 		err = usb_submit_urb (stv680->urb[i], GFP_KERNEL);
 		if (err)