Move USB network drivers to drivers/net/usb.

It is preferable to group drivers by usage (net, scsi, ATA, ...) than
by bus.  When reviewing drivers, the [PCI|USB|PCMCIA|...] maintainer
is probably less qualified on networking issues than a networking
maintainer.  Also, from a practical standpoint, chips often
appear on multiple buses, which is why we do not put drivers into
drivers/pci/net.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 0 insertions, 570 deletions

diff --git a/drivers/usb/net/cdc_ether.c b/drivers/usb/net/cdc_ether.c
deleted file mode 100644
index 5a21f06..0000000
--- a/drivers/usb/net/cdc_ether.c
+++ /dev/null
@@ -1,570 +0,0 @@
-/*
- * CDC Ethernet based networking peripherals
- * Copyright (C) 2003-2005 by David Brownell
- * Copyright (C) 2006 by Ole Andre Vadla Ravnas (ActiveSync)
- *
- * 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
- */
-
-// #define	DEBUG			// error path messages, extra info
-// #define	VERBOSE			// more; success messages
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/ctype.h>
-#include <linux/ethtool.h>
-#include <linux/workqueue.h>
-#include <linux/mii.h>
-#include <linux/usb.h>
-#include <linux/usb/cdc.h>
-
-#include "usbnet.h"
-
-
-#if defined(CONFIG_USB_NET_RNDIS_HOST) || defined(CONFIG_USB_NET_RNDIS_HOST_MODULE)
-
-static int is_rndis(struct usb_interface_descriptor *desc)
-{
-	return desc->bInterfaceClass == USB_CLASS_COMM
-		&& desc->bInterfaceSubClass == 2
-		&& desc->bInterfaceProtocol == 0xff;
-}
-
-static int is_activesync(struct usb_interface_descriptor *desc)
-{
-	return desc->bInterfaceClass == USB_CLASS_MISC
-		&& desc->bInterfaceSubClass == 1
-		&& desc->bInterfaceProtocol == 1;
-}
-
-#else
-
-#define is_rndis(desc)		0
-#define is_activesync(desc)	0
-
-#endif
-
-/*
- * probes control interface, claims data interface, collects the bulk
- * endpoints, activates data interface (if needed), maybe sets MTU.
- * all pure cdc, except for certain firmware workarounds, and knowing
- * that rndis uses one different rule.
- */
-int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
-{
-	u8				*buf = intf->cur_altsetting->extra;
-	int				len = intf->cur_altsetting->extralen;
-	struct usb_interface_descriptor	*d;
-	struct cdc_state		*info = (void *) &dev->data;
-	int				status;
-	int				rndis;
-	struct usb_driver		*driver = driver_of(intf);
-
-	if (sizeof dev->data < sizeof *info)
-		return -EDOM;
-
-	/* expect strict spec conformance for the descriptors, but
-	 * cope with firmware which stores them in the wrong place
-	 */
-	if (len == 0 && dev->udev->actconfig->extralen) {
-		/* Motorola SB4100 (and others: Brad Hards says it's
-		 * from a Broadcom design) put CDC descriptors here
-		 */
-		buf = dev->udev->actconfig->extra;
-		len = dev->udev->actconfig->extralen;
-		if (len)
-			dev_dbg(&intf->dev,
-				"CDC descriptors on config\n");
-	}
-
-	/* this assumes that if there's a non-RNDIS vendor variant
-	 * of cdc-acm, it'll fail RNDIS requests cleanly.
-	 */
-	rndis = is_rndis(&intf->cur_altsetting->desc)
-		|| is_activesync(&intf->cur_altsetting->desc);
-
-	memset(info, 0, sizeof *info);
-	info->control = intf;
-	while (len > 3) {
-		if (buf [1] != USB_DT_CS_INTERFACE)
-			goto next_desc;
-
-		/* use bDescriptorSubType to identify the CDC descriptors.
-		 * We expect devices with CDC header and union descriptors.
-		 * For CDC Ethernet we need the ethernet descriptor.
-		 * For RNDIS, ignore two (pointless) CDC modem descriptors
-		 * in favor of a complicated OID-based RPC scheme doing what
-		 * CDC Ethernet achieves with a simple descriptor.
-		 */
-		switch (buf [2]) {
-		case USB_CDC_HEADER_TYPE:
-			if (info->header) {
-				dev_dbg(&intf->dev, "extra CDC header\n");
-				goto bad_desc;
-			}
-			info->header = (void *) buf;
-			if (info->header->bLength != sizeof *info->header) {
-				dev_dbg(&intf->dev, "CDC header len %u\n",
-					info->header->bLength);
-				goto bad_desc;
-			}
-			break;
-		case USB_CDC_ACM_TYPE:
-			/* paranoia:  disambiguate a "real" vendor-specific
-			 * modem interface from an RNDIS non-modem.
-			 */
-			if (rndis) {
-				struct usb_cdc_acm_descriptor *d;
-
-				d = (void *) buf;
-				if (d->bmCapabilities) {
-					dev_dbg(&intf->dev,
-						"ACM capabilities %02x, "
-						"not really RNDIS?\n",
-						d->bmCapabilities);
-					goto bad_desc;
-				}
-			}
-			break;
-		case USB_CDC_UNION_TYPE:
-			if (info->u) {
-				dev_dbg(&intf->dev, "extra CDC union\n");
-				goto bad_desc;
-			}
-			info->u = (void *) buf;
-			if (info->u->bLength != sizeof *info->u) {
-				dev_dbg(&intf->dev, "CDC union len %u\n",
-					info->u->bLength);
-				goto bad_desc;
-			}
-
-			/* we need a master/control interface (what we're
-			 * probed with) and a slave/data interface; union
-			 * descriptors sort this all out.
-			 */
-			info->control = usb_ifnum_to_if(dev->udev,
-						info->u->bMasterInterface0);
-			info->data = usb_ifnum_to_if(dev->udev,
-						info->u->bSlaveInterface0);
-			if (!info->control || !info->data) {
-				dev_dbg(&intf->dev,
-					"master #%u/%p slave #%u/%p\n",
-					info->u->bMasterInterface0,
-					info->control,
-					info->u->bSlaveInterface0,
-					info->data);
-				goto bad_desc;
-			}
-			if (info->control != intf) {
-				dev_dbg(&intf->dev, "bogus CDC Union\n");
-				/* Ambit USB Cable Modem (and maybe others)
-				 * interchanges master and slave interface.
-				 */
-				if (info->data == intf) {
-					info->data = info->control;
-					info->control = intf;
-				} else
-					goto bad_desc;
-			}
-
-			/* a data interface altsetting does the real i/o */
-			d = &info->data->cur_altsetting->desc;
-			if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
-				dev_dbg(&intf->dev, "slave class %u\n",
-					d->bInterfaceClass);
-				goto bad_desc;
-			}
-			break;
-		case USB_CDC_ETHERNET_TYPE:
-			if (info->ether) {
-				dev_dbg(&intf->dev, "extra CDC ether\n");
-				goto bad_desc;
-			}
-			info->ether = (void *) buf;
-			if (info->ether->bLength != sizeof *info->ether) {
-				dev_dbg(&intf->dev, "CDC ether len %u\n",
-					info->ether->bLength);
-				goto bad_desc;
-			}
-			dev->hard_mtu = le16_to_cpu(
-						info->ether->wMaxSegmentSize);
-			/* because of Zaurus, we may be ignoring the host
-			 * side link address we were given.
-			 */
-			break;
-		}
-next_desc:
-		len -= buf [0];	/* bLength */
-		buf += buf [0];
-	}
-
-	/* Microsoft ActiveSync based RNDIS devices lack the CDC descriptors,
-	 * so we'll hard-wire the interfaces and not check for descriptors.
-	 */
-	if (is_activesync(&intf->cur_altsetting->desc) && !info->u) {
-		info->control = usb_ifnum_to_if(dev->udev, 0);
-		info->data = usb_ifnum_to_if(dev->udev, 1);
-		if (!info->control || !info->data) {
-			dev_dbg(&intf->dev,
-				"activesync: master #0/%p slave #1/%p\n",
-				info->control,
-				info->data);
-			goto bad_desc;
-		}
-
-	} else if (!info->header || !info->u || (!rndis && !info->ether)) {
-		dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
-			info->header ? "" : "header ",
-			info->u ? "" : "union ",
-			info->ether ? "" : "ether ");
-		goto bad_desc;
-	}
-
-	/* claim data interface and set it up ... with side effects.
-	 * network traffic can't flow until an altsetting is enabled.
-	 */
-	status = usb_driver_claim_interface(driver, info->data, dev);
-	if (status < 0)
-		return status;
-	status = usbnet_get_endpoints(dev, info->data);
-	if (status < 0) {
-		/* ensure immediate exit from usbnet_disconnect */
-		usb_set_intfdata(info->data, NULL);
-		usb_driver_release_interface(driver, info->data);
-		return status;
-	}
-
-	/* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
-	dev->status = NULL;
-	if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
-		struct usb_endpoint_descriptor	*desc;
-
-		dev->status = &info->control->cur_altsetting->endpoint [0];
-		desc = &dev->status->desc;
-		if (!usb_endpoint_is_int_in(desc)
-				|| (le16_to_cpu(desc->wMaxPacketSize)
-					< sizeof(struct usb_cdc_notification))
-				|| !desc->bInterval) {
-			dev_dbg(&intf->dev, "bad notification endpoint\n");
-			dev->status = NULL;
-		}
-	}
-	if (rndis && !dev->status) {
-		dev_dbg(&intf->dev, "missing RNDIS status endpoint\n");
-		usb_set_intfdata(info->data, NULL);
-		usb_driver_release_interface(driver, info->data);
-		return -ENODEV;
-	}
-	return 0;
-
-bad_desc:
-	dev_info(&dev->udev->dev, "bad CDC descriptors\n");
-	return -ENODEV;
-}
-EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind);
-
-void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf)
-{
-	struct cdc_state		*info = (void *) &dev->data;
-	struct usb_driver		*driver = driver_of(intf);
-
-	/* disconnect master --> disconnect slave */
-	if (intf == info->control && info->data) {
-		/* ensure immediate exit from usbnet_disconnect */
-		usb_set_intfdata(info->data, NULL);
-		usb_driver_release_interface(driver, info->data);
-		info->data = NULL;
-	}
-
-	/* and vice versa (just in case) */
-	else if (intf == info->data && info->control) {
-		/* ensure immediate exit from usbnet_disconnect */
-		usb_set_intfdata(info->control, NULL);
-		usb_driver_release_interface(driver, info->control);
-		info->control = NULL;
-	}
-}
-EXPORT_SYMBOL_GPL(usbnet_cdc_unbind);
-
-
-/*-------------------------------------------------------------------------
- *
- * Communications Device Class, Ethernet Control model
- *
- * Takes two interfaces.  The DATA interface is inactive till an altsetting
- * is selected.  Configuration data includes class descriptors.  There's
- * an optional status endpoint on the control interface.
- *
- * This should interop with whatever the 2.4 "CDCEther.c" driver
- * (by Brad Hards) talked with, with more functionality.
- *
- *-------------------------------------------------------------------------*/
-
-static void dumpspeed(struct usbnet *dev, __le32 *speeds)
-{
-	if (netif_msg_timer(dev))
-		devinfo(dev, "link speeds: %u kbps up, %u kbps down",
-			__le32_to_cpu(speeds[0]) / 1000,
-		__le32_to_cpu(speeds[1]) / 1000);
-}
-
-static void cdc_status(struct usbnet *dev, struct urb *urb)
-{
-	struct usb_cdc_notification	*event;
-
-	if (urb->actual_length < sizeof *event)
-		return;
-
-	/* SPEED_CHANGE can get split into two 8-byte packets */
-	if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) {
-		dumpspeed(dev, (__le32 *) urb->transfer_buffer);
-		return;
-	}
-
-	event = urb->transfer_buffer;
-	switch (event->bNotificationType) {
-	case USB_CDC_NOTIFY_NETWORK_CONNECTION:
-		if (netif_msg_timer(dev))
-			devdbg(dev, "CDC: carrier %s",
-					event->wValue ? "on" : "off");
-		if (event->wValue)
-			netif_carrier_on(dev->net);
-		else
-			netif_carrier_off(dev->net);
-		break;
-	case USB_CDC_NOTIFY_SPEED_CHANGE:	/* tx/rx rates */
-		if (netif_msg_timer(dev))
-			devdbg(dev, "CDC: speed change (len %d)",
-					urb->actual_length);
-		if (urb->actual_length != (sizeof *event + 8))
-			set_bit(EVENT_STS_SPLIT, &dev->flags);
-		else
-			dumpspeed(dev, (__le32 *) &event[1]);
-		break;
-	/* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS),
-	 * but there are no standard formats for the response data.
-	 */
-	default:
-		deverr(dev, "CDC: unexpected notification %02x!",
-				 event->bNotificationType);
-		break;
-	}
-}
-
-static u8 nibble(unsigned char c)
-{
-	if (likely(isdigit(c)))
-		return c - '0';
-	c = toupper(c);
-	if (likely(isxdigit(c)))
-		return 10 + c - 'A';
-	return 0;
-}
-
-static inline int
-get_ethernet_addr(struct usbnet *dev, struct usb_cdc_ether_desc *e)
-{
-	int 		tmp, i;
-	unsigned char	buf [13];
-
-	tmp = usb_string(dev->udev, e->iMACAddress, buf, sizeof buf);
-	if (tmp != 12) {
-		dev_dbg(&dev->udev->dev,
-			"bad MAC string %d fetch, %d\n", e->iMACAddress, tmp);
-		if (tmp >= 0)
-			tmp = -EINVAL;
-		return tmp;
-	}
-	for (i = tmp = 0; i < 6; i++, tmp += 2)
-		dev->net->dev_addr [i] =
-			(nibble(buf [tmp]) << 4) + nibble(buf [tmp + 1]);
-	return 0;
-}
-
-static int cdc_bind(struct usbnet *dev, struct usb_interface *intf)
-{
-	int				status;
-	struct cdc_state		*info = (void *) &dev->data;
-
-	status = usbnet_generic_cdc_bind(dev, intf);
-	if (status < 0)
-		return status;
-
-	status = get_ethernet_addr(dev, info->ether);
-	if (status < 0) {
-		usb_set_intfdata(info->data, NULL);
-		usb_driver_release_interface(driver_of(intf), info->data);
-		return status;
-	}
-
-	/* FIXME cdc-ether has some multicast code too, though it complains
-	 * in routine cases.  info->ether describes the multicast support.
-	 * Implement that here, manipulating the cdc filter as needed.
-	 */
-	return 0;
-}
-
-static const struct driver_info	cdc_info = {
-	.description =	"CDC Ethernet Device",
-	.flags =	FLAG_ETHER,
-	// .check_connect = cdc_check_connect,
-	.bind =		cdc_bind,
-	.unbind =	usbnet_cdc_unbind,
-	.status =	cdc_status,
-};
-
-/*-------------------------------------------------------------------------*/
-
-
-static const struct usb_device_id	products [] = {
-/*
- * BLACKLIST !!
- *
- * First blacklist any products that are egregiously nonconformant
- * with the CDC Ethernet specs.  Minor braindamage we cope with; when
- * they're not even trying, needing a separate driver is only the first
- * of the differences to show up.
- */
-
-#define	ZAURUS_MASTER_INTERFACE \
-	.bInterfaceClass	= USB_CLASS_COMM, \
-	.bInterfaceSubClass	= USB_CDC_SUBCLASS_ETHERNET, \
-	.bInterfaceProtocol	= USB_CDC_PROTO_NONE
-
-/* SA-1100 based Sharp Zaurus ("collie"), or compatible;
- * wire-incompatible with true CDC Ethernet implementations.
- * (And, it seems, needlessly so...)
- */
-{
-	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
-			  | USB_DEVICE_ID_MATCH_DEVICE,
-	.idVendor		= 0x04DD,
-	.idProduct		= 0x8004,
-	ZAURUS_MASTER_INTERFACE,
-	.driver_info		= 0,
-},
-
-/* PXA-25x based Sharp Zaurii.  Note that it seems some of these
- * (later models especially) may have shipped only with firmware
- * advertising false "CDC MDLM" compatibility ... but we're not
- * clear which models did that, so for now let's assume the worst.
- */
-{
-	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
-			  | USB_DEVICE_ID_MATCH_DEVICE,
-	.idVendor		= 0x04DD,
-	.idProduct		= 0x8005,	/* A-300 */
-	ZAURUS_MASTER_INTERFACE,
-	.driver_info		= 0,
-}, {
-	.match_flags	=   USB_DEVICE_ID_MATCH_INT_INFO
-			  | USB_DEVICE_ID_MATCH_DEVICE,
-	.idVendor		= 0x04DD,
-	.idProduct		= 0x8006,	/* B-500/SL-5600 */
-	ZAURUS_MASTER_INTERFACE,
-	.driver_info		= 0,
-}, {
-	.match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
-	          | USB_DEVICE_ID_MATCH_DEVICE,
-	.idVendor		= 0x04DD,
-	.idProduct		= 0x8007,	/* C-700 */
-	ZAURUS_MASTER_INTERFACE,
-	.driver_info		= 0,
-}, {
-	.match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
-		 | USB_DEVICE_ID_MATCH_DEVICE,
-	.idVendor               = 0x04DD,
-	.idProduct              = 0x9031,	/* C-750 C-760 */
-	ZAURUS_MASTER_INTERFACE,
-	.driver_info		= 0,
-}, {
-	.match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
-		 | USB_DEVICE_ID_MATCH_DEVICE,
-	.idVendor               = 0x04DD,
-	.idProduct              = 0x9032,	/* SL-6000 */
-	ZAURUS_MASTER_INTERFACE,
-	.driver_info		= 0,
-}, {
-	.match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
-		 | USB_DEVICE_ID_MATCH_DEVICE,
-	.idVendor               = 0x04DD,
-	/* reported with some C860 units */
-	.idProduct              = 0x9050,	/* C-860 */
-	ZAURUS_MASTER_INTERFACE,
-	.driver_info		= 0,
-},
-
-/* Olympus has some models with a Zaurus-compatible option.
- * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
- */
-{
-	.match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
-		 | USB_DEVICE_ID_MATCH_DEVICE,
-	.idVendor               = 0x07B4,
-	.idProduct              = 0x0F02,	/* R-1000 */
-	ZAURUS_MASTER_INTERFACE,
-	.driver_info		= 0,
-},
-
-/*
- * WHITELIST!!!
- *
- * CDC Ether uses two interfaces, not necessarily consecutive.
- * We match the main interface, ignoring the optional device
- * class so we could handle devices that aren't exclusively
- * CDC ether.
- *
- * NOTE:  this match must come AFTER entries blacklisting devices
- * because of bugs/quirks in a given product (like Zaurus, above).
- */
-{
-	USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
-			USB_CDC_PROTO_NONE),
-	.driver_info = (unsigned long) &cdc_info,
-},
-	{ },		// END
-};
-MODULE_DEVICE_TABLE(usb, products);
-
-static struct usb_driver cdc_driver = {
-	.name =		"cdc_ether",
-	.id_table =	products,
-	.probe =	usbnet_probe,
-	.disconnect =	usbnet_disconnect,
-	.suspend =	usbnet_suspend,
-	.resume =	usbnet_resume,
-};
-
-
-static int __init cdc_init(void)
-{
-	BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data)
-			< sizeof(struct cdc_state)));
-
- 	return usb_register(&cdc_driver);
-}
-module_init(cdc_init);
-
-static void __exit cdc_exit(void)
-{
- 	usb_deregister(&cdc_driver);
-}
-module_exit(cdc_exit);
-
-MODULE_AUTHOR("David Brownell");
-MODULE_DESCRIPTION("USB CDC Ethernet devices");
-MODULE_LICENSE("GPL");