/*
- * USB Networking Links
- * Copyright (C) 2000-2005 by David Brownell <dbrownell@users.sourceforge.net>
- * Copyright (C) 2002 Pavel Machek <pavel@ucw.cz>
+ * USB Network driver infrastructure
+ * Copyright (C) 2000-2005 by David Brownell
* Copyright (C) 2003-2005 David Hollis <dhollis@davehollis.com>
- * Copyright (C) 2005 Phil Chang <pchang23@sbcglobal.net>
- * Copyright (c) 2002-2003 TiVo Inc.
*
* 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
/*
* This is a generic "USB networking" framework that works with several
- * kinds of full and high speed networking devices:
- *
- * + USB host-to-host "network cables", used for IP-over-USB links.
- * These are often used for Laplink style connectivity products.
- * - AnchorChip 2720
- * - Belkin, eTEK (interops with Win32 drivers)
- * - GeneSys GL620USB-A
- * - NetChip 1080 (interoperates with NetChip Win32 drivers)
- * - Prolific PL-2301/2302 (replaces "plusb" driver)
- * - KC Technology KC2190
- *
- * + Smart USB devices can support such links directly, using Internet
- * standard protocols instead of proprietary host-to-device links.
- * - Linux PDAs like iPaq, Yopy, and Zaurus
- * - The BLOB boot loader (for diskless booting)
- * - Linux "gadgets", perhaps using PXA-2xx or Net2280 controllers
- * - Devices using EPSON's sample USB firmware
- * - CDC-Ethernet class devices, such as many cable modems
- *
- * + Adapters to networks such as Ethernet.
- * - AX8817X based USB 2.0 products
- *
- * Links to these devices can be bridged using Linux Ethernet bridging.
- * With minor exceptions, these all use similar USB framing for network
- * traffic, but need different protocols for control traffic.
- *
- * USB devices can implement their side of this protocol at the cost
- * of two bulk endpoints; it's not restricted to "cable" applications.
- * See the SA1110, Zaurus, or EPSON device/client support in this driver;
- * slave/target drivers such as "usb-eth" (on most SA-1100 PDAs) or
- * "g_ether" (in the Linux "gadget" framework) implement that behavior
- * within devices.
- *
- *
- * CHANGELOG:
- *
- * 13-sep-2000 experimental, new
- * 10-oct-2000 usb_device_id table created.
- * 28-oct-2000 misc fixes; mostly, discard more TTL-mangled rx packets.
- * 01-nov-2000 usb_device_id table and probing api update by
- * Adam J. Richter <adam@yggdrasil.com>.
- * 18-dec-2000 (db) tx watchdog, "net1080" renaming to "usbnet", device_info
- * and prolific support, isolate net1080-specific bits, cleanup.
- * fix unlink_urbs oops in D3 PM resume code path.
- *
- * 02-feb-2001 (db) fix tx skb sharing, packet length, match_flags, ...
- * 08-feb-2001 stubbed in "linuxdev", maybe the SA-1100 folk can use it;
- * AnchorChips 2720 support (from spec) for testing;
- * fix bit-ordering problem with ethernet multicast addr
- * 19-feb-2001 Support for clearing halt conditions. SA1100 UDC support
- * updates. Oleg Drokin (green@iXcelerator.com)
- * 25-mar-2001 More SA-1100 updates, including workaround for ip problem
- * expecting cleared skb->cb and framing change to match latest
- * handhelds.org version (Oleg). Enable device IDs from the
- * Win32 Belkin driver; other cleanups (db).
- * 16-jul-2001 Bugfixes for uhci oops-on-unplug, Belkin support, various
- * cleanups for problems not yet seen in the field. (db)
- * 17-oct-2001 Handle "Advance USBNET" product, like Belkin/eTEK devices,
- * from Ioannis Mavroukakis <i.mavroukakis@btinternet.com>;
- * rx unlinks somehow weren't async; minor cleanup.
- * 03-nov-2001 Merged GeneSys driver; original code from Jiun-Jie Huang
- * <huangjj@genesyslogic.com.tw>, updated by Stanislav Brabec
- * <utx@penguin.cz>. Made framing options (NetChip/GeneSys)
- * tie mostly to (sub)driver info. Workaround some PL-2302
- * chips that seem to reject SET_INTERFACE requests.
- *
- * 06-apr-2002 Added ethtool support, based on a patch from Brad Hards.
- * Level of diagnostics is more configurable; they use device
- * location (usb_device->devpath) instead of address (2.5).
- * For tx_fixup, memflags can't be NOIO.
- * 07-may-2002 Generalize/cleanup keventd support, handling rx stalls (mostly
- * for USB 2.0 TTs) and memory shortages (potential) too. (db)
- * Use "locally assigned" IEEE802 address space. (Brad Hards)
- * 18-oct-2002 Support for Zaurus (Pavel Machek), related cleanup (db).
- * 14-dec-2002 Remove Zaurus-private crc32 code (Pavel); 2.5 oops fix,
- * cleanups and stubbed PXA-250 support (db), fix for framing
- * issues on Z, net1080, and gl620a (Toby Milne)
- *
- * 31-mar-2003 Use endpoint descriptors: high speed support, simpler sa1100
- * vs pxa25x, and CDC Ethernet. Throttle down log floods on
- * disconnect; other cleanups. (db) Flush net1080 fifos
- * after several sequential framing errors. (Johannes Erdfelt)
- * 22-aug-2003 AX8817X support (Dave Hollis).
- * 14-jun-2004 Trivial patch for AX8817X based Buffalo LUA-U2-KTX in Japan
- * (Neil Bortnak)
- * 03-nov-2004 Trivial patch for KC2190 (KC-190) chip. (Jonathan McDowell)
- *
- * 01-feb-2005 AX88772 support (Phil Chang & Dave Hollis)
- *-------------------------------------------------------------------------*/
+ * kinds of full and high speed networking devices: host-to-host cables,
+ * smart usb peripherals, and actual Ethernet adapters.
+ *
+ * These devices usually differ in terms of control protocols (if they
+ * even have one!) and sometimes they define new framing to wrap or batch
+ * Ethernet packets. Otherwise, they talk to USB pretty much the same,
+ * so interface (un)binding, endpoint I/O queues, fault handling, and other
+ * issues can usefully be addressed by this framework.
+ */
// #define DEBUG // error path messages, extra info
// #define VERBOSE // more; success messages
#include <linux/config.h>
-#ifdef CONFIG_USB_DEBUG
-# define DEBUG
-#endif
#include <linux/module.h>
-#include <linux/kmod.h>
#include <linux/sched.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
-#include <linux/random.h>
#include <linux/ethtool.h>
#include <linux/workqueue.h>
#include <linux/mii.h>
-#include <asm/uaccess.h>
-#include <asm/unaligned.h>
#include <linux/usb.h>
-#include <asm/io.h>
-#include <asm/scatterlist.h>
-#include <linux/mm.h>
-#include <linux/dma-mapping.h>
-#define DRIVER_VERSION "03-Nov-2004"
+#include "usbnet.h"
+
+#define DRIVER_VERSION "22-Aug-2005"
/*-------------------------------------------------------------------------*/
* One maximum size Ethernet packet takes twenty four of them.
* For high speed, each frame comfortably fits almost 36 max size
* Ethernet packets (so queues should be bigger).
+ *
+ * REVISIT qlens should be members of 'struct usbnet'; the goal is to
+ * let the USB host controller be busy for 5msec or more before an irq
+ * is required, under load. Jumbograms change the equation.
*/
#define RX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4)
#define TX_QLEN(dev) (((dev)->udev->speed == USB_SPEED_HIGH) ? 60 : 4)
-// packets are always ethernet inside
-// ... except they can be bigger (limit of 64K with NetChip framing)
-#define MIN_PACKET sizeof(struct ethhdr)
-#define MAX_PACKET 32768
-
// reawaken network queue this soon after stopping; else watchdog barks
#define TX_TIMEOUT_JIFFIES (5*HZ)
// us (it polls at HZ/4 usually) before we report too many false errors.
#define THROTTLE_JIFFIES (HZ/8)
-// for vendor-specific control operations
-#define CONTROL_TIMEOUT_MS 500
-
-// between wakeups
-#define UNLINK_TIMEOUT_MS 3
-
-/*-------------------------------------------------------------------------*/
-
-// randomly generated ethernet address
-static u8 node_id [ETH_ALEN];
-
-// state we keep for each device we handle
-struct usbnet {
- // housekeeping
- struct usb_device *udev;
- struct driver_info *driver_info;
- wait_queue_head_t *wait;
-
- // i/o info: pipes etc
- unsigned in, out;
- struct usb_host_endpoint *status;
- unsigned maxpacket;
- struct timer_list delay;
-
- // protocol/interface state
- struct net_device *net;
- struct net_device_stats stats;
- int msg_enable;
- unsigned long data [5];
-
- struct mii_if_info mii;
-
- // various kinds of pending driver work
- struct sk_buff_head rxq;
- struct sk_buff_head txq;
- struct sk_buff_head done;
- struct urb *interrupt;
- struct tasklet_struct bh;
-
- struct work_struct kevent;
- unsigned long flags;
-# define EVENT_TX_HALT 0
-# define EVENT_RX_HALT 1
-# define EVENT_RX_MEMORY 2
-# define EVENT_STS_SPLIT 3
-# define EVENT_LINK_RESET 4
-};
-
-// device-specific info used by the driver
-struct driver_info {
- char *description;
-
- int flags;
-/* framing is CDC Ethernet, not writing ZLPs (hw issues), or optionally: */
-#define FLAG_FRAMING_NC 0x0001 /* guard against device dropouts */
-#define FLAG_FRAMING_GL 0x0002 /* genelink batches packets */
-#define FLAG_FRAMING_Z 0x0004 /* zaurus adds a trailer */
-#define FLAG_FRAMING_RN 0x0008 /* RNDIS batches, plus huge header */
-
-#define FLAG_NO_SETINT 0x0010 /* device can't set_interface() */
-#define FLAG_ETHER 0x0020 /* maybe use "eth%d" names */
-
-#define FLAG_FRAMING_AX 0x0040 /* AX88772/178 packets */
-
- /* init device ... can sleep, or cause probe() failure */
- int (*bind)(struct usbnet *, struct usb_interface *);
-
- /* cleanup device ... can sleep, but can't fail */
- void (*unbind)(struct usbnet *, struct usb_interface *);
-
- /* reset device ... can sleep */
- int (*reset)(struct usbnet *);
-
- /* see if peer is connected ... can sleep */
- int (*check_connect)(struct usbnet *);
-
- /* for status polling */
- void (*status)(struct usbnet *, struct urb *);
-
- /* link reset handling, called from defer_kevent */
- int (*link_reset)(struct usbnet *);
-
- /* fixup rx packet (strip framing) */
- int (*rx_fixup)(struct usbnet *dev, struct sk_buff *skb);
-
- /* fixup tx packet (add framing) */
- struct sk_buff *(*tx_fixup)(struct usbnet *dev,
- struct sk_buff *skb, int flags);
-
- // FIXME -- also an interrupt mechanism
- // useful for at least PL2301/2302 and GL620USB-A
- // and CDC use them to report 'is it connected' changes
-
- /* for new devices, use the descriptor-reading code instead */
- int in; /* rx endpoint */
- int out; /* tx endpoint */
-
- unsigned long data; /* Misc driver specific data */
-};
-
-// we record the state for each of our queued skbs
-enum skb_state {
- illegal = 0,
- tx_start, tx_done,
- rx_start, rx_done, rx_cleanup
-};
-
-struct skb_data { // skb->cb is one of these
- struct urb *urb;
- struct usbnet *dev;
- enum skb_state state;
- size_t length;
-};
-
-static const char driver_name [] = "usbnet";
-
-/* use ethtool to change the level for any given device */
-static int msg_level = -1;
-module_param (msg_level, int, 0);
-MODULE_PARM_DESC (msg_level, "Override default message level");
-
-
-#ifdef DEBUG
-#define devdbg(usbnet, fmt, arg...) \
- printk(KERN_DEBUG "%s: " fmt "\n" , (usbnet)->net->name , ## arg)
-#else
-#define devdbg(usbnet, fmt, arg...) do {} while(0)
-#endif
-
-#define deverr(usbnet, fmt, arg...) \
- printk(KERN_ERR "%s: " fmt "\n" , (usbnet)->net->name , ## arg)
-#define devwarn(usbnet, fmt, arg...) \
- printk(KERN_WARNING "%s: " fmt "\n" , (usbnet)->net->name , ## arg)
-
-#define devinfo(usbnet, fmt, arg...) \
- printk(KERN_INFO "%s: " fmt "\n" , (usbnet)->net->name , ## arg); \
-
-/*-------------------------------------------------------------------------*/
-
-static void usbnet_get_drvinfo (struct net_device *, struct ethtool_drvinfo *);
-static u32 usbnet_get_link (struct net_device *);
-static u32 usbnet_get_msglevel (struct net_device *);
-static void usbnet_set_msglevel (struct net_device *, u32);
-static void defer_kevent (struct usbnet *, int);
-
-/* mostly for PDA style devices, which are always connected if present */
-static int always_connected (struct usbnet *dev)
-{
- return 0;
-}
-
-/* handles CDC Ethernet and many other network "bulk data" interfaces */
-static int
-get_endpoints (struct usbnet *dev, struct usb_interface *intf)
-{
- int tmp;
- struct usb_host_interface *alt = NULL;
- struct usb_host_endpoint *in = NULL, *out = NULL;
- struct usb_host_endpoint *status = NULL;
-
- for (tmp = 0; tmp < intf->num_altsetting; tmp++) {
- unsigned ep;
-
- in = out = status = NULL;
- alt = intf->altsetting + tmp;
-
- /* take the first altsetting with in-bulk + out-bulk;
- * remember any status endpoint, just in case;
- * ignore other endpoints and altsetttings.
- */
- for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) {
- struct usb_host_endpoint *e;
- int intr = 0;
-
- e = alt->endpoint + ep;
- switch (e->desc.bmAttributes) {
- case USB_ENDPOINT_XFER_INT:
- if (!(e->desc.bEndpointAddress & USB_DIR_IN))
- continue;
- intr = 1;
- /* FALLTHROUGH */
- case USB_ENDPOINT_XFER_BULK:
- break;
- default:
- continue;
- }
- if (e->desc.bEndpointAddress & USB_DIR_IN) {
- if (!intr && !in)
- in = e;
- else if (intr && !status)
- status = e;
- } else {
- if (!out)
- out = e;
- }
- }
- if (in && out)
- break;
- }
- if (!alt || !in || !out)
- return -EINVAL;
-
- if (alt->desc.bAlternateSetting != 0
- || !(dev->driver_info->flags & FLAG_NO_SETINT)) {
- tmp = usb_set_interface (dev->udev, alt->desc.bInterfaceNumber,
- alt->desc.bAlternateSetting);
- if (tmp < 0)
- return tmp;
- }
-
- dev->in = usb_rcvbulkpipe (dev->udev,
- in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
- dev->out = usb_sndbulkpipe (dev->udev,
- out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
- dev->status = status;
- return 0;
-}
-
-static void intr_complete (struct urb *urb, struct pt_regs *regs);
-
-static int init_status (struct usbnet *dev, struct usb_interface *intf)
-{
- char *buf = NULL;
- unsigned pipe = 0;
- unsigned maxp;
- unsigned period;
-
- if (!dev->driver_info->status)
- return 0;
-
- pipe = usb_rcvintpipe (dev->udev,
- dev->status->desc.bEndpointAddress
- & USB_ENDPOINT_NUMBER_MASK);
- maxp = usb_maxpacket (dev->udev, pipe, 0);
-
- /* avoid 1 msec chatter: min 8 msec poll rate */
- period = max ((int) dev->status->desc.bInterval,
- (dev->udev->speed == USB_SPEED_HIGH) ? 7 : 3);
-
- buf = kmalloc (maxp, SLAB_KERNEL);
- if (buf) {
- dev->interrupt = usb_alloc_urb (0, SLAB_KERNEL);
- if (!dev->interrupt) {
- kfree (buf);
- return -ENOMEM;
- } else {
- usb_fill_int_urb(dev->interrupt, dev->udev, pipe,
- buf, maxp, intr_complete, dev, period);
- dev_dbg(&intf->dev,
- "status ep%din, %d bytes period %d\n",
- usb_pipeendpoint(pipe), maxp, period);
- }
- }
- return 0;
-}
-
-static void skb_return (struct usbnet *dev, struct sk_buff *skb)
-{
- int status;
-
- skb->dev = dev->net;
- skb->protocol = eth_type_trans (skb, dev->net);
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += skb->len;
-
- if (netif_msg_rx_status (dev))
- devdbg (dev, "< rx, len %zu, type 0x%x",
- skb->len + sizeof (struct ethhdr), skb->protocol);
- memset (skb->cb, 0, sizeof (struct skb_data));
- status = netif_rx (skb);
- if (status != NET_RX_SUCCESS && netif_msg_rx_err (dev))
- devdbg (dev, "netif_rx status %d", status);
-}
-
-\f
-#ifdef CONFIG_USB_ALI_M5632
-#define HAVE_HARDWARE
-
-/*-------------------------------------------------------------------------
- *
- * ALi M5632 driver ... does high speed
- *
- *-------------------------------------------------------------------------*/
-
-static const struct driver_info ali_m5632_info = {
- .description = "ALi M5632",
-};
-
-
-#endif
-
-\f
-#ifdef CONFIG_USB_AN2720
-#define HAVE_HARDWARE
-
-/*-------------------------------------------------------------------------
- *
- * AnchorChips 2720 driver ... http://www.cypress.com
- *
- * This doesn't seem to have a way to detect whether the peer is
- * connected, or need any reset handshaking. It's got pretty big
- * internal buffers (handles most of a frame's worth of data).
- * Chip data sheets don't describe any vendor control messages.
- *
- *-------------------------------------------------------------------------*/
-
-static const struct driver_info an2720_info = {
- .description = "AnchorChips/Cypress 2720",
- // no reset available!
- // no check_connect available!
-
- .in = 2, .out = 2, // direction distinguishes these
-};
-
-#endif /* CONFIG_USB_AN2720 */
-
-\f
-#ifdef CONFIG_USB_AX8817X
-/* ASIX AX8817X based USB 2.0 Ethernet Devices */
-
-#define HAVE_HARDWARE
-#define NEED_MII
-
-#include <linux/crc32.h>
-
-#define AX_CMD_SET_SW_MII 0x06
-#define AX_CMD_READ_MII_REG 0x07
-#define AX_CMD_WRITE_MII_REG 0x08
-#define AX_CMD_SET_HW_MII 0x0a
-#define AX_CMD_READ_EEPROM 0x0b
-#define AX_CMD_WRITE_EEPROM 0x0c
-#define AX_CMD_WRITE_ENABLE 0x0d
-#define AX_CMD_WRITE_DISABLE 0x0e
-#define AX_CMD_WRITE_RX_CTL 0x10
-#define AX_CMD_READ_IPG012 0x11
-#define AX_CMD_WRITE_IPG0 0x12
-#define AX_CMD_WRITE_IPG1 0x13
-#define AX_CMD_WRITE_IPG2 0x14
-#define AX_CMD_WRITE_MULTI_FILTER 0x16
-#define AX_CMD_READ_NODE_ID 0x17
-#define AX_CMD_READ_PHY_ID 0x19
-#define AX_CMD_READ_MEDIUM_STATUS 0x1a
-#define AX_CMD_WRITE_MEDIUM_MODE 0x1b
-#define AX_CMD_READ_MONITOR_MODE 0x1c
-#define AX_CMD_WRITE_MONITOR_MODE 0x1d
-#define AX_CMD_WRITE_GPIOS 0x1f
-#define AX_CMD_SW_RESET 0x20
-#define AX_CMD_SW_PHY_STATUS 0x21
-#define AX_CMD_SW_PHY_SELECT 0x22
-#define AX88772_CMD_READ_NODE_ID 0x13
-
-#define AX_MONITOR_MODE 0x01
-#define AX_MONITOR_LINK 0x02
-#define AX_MONITOR_MAGIC 0x04
-#define AX_MONITOR_HSFS 0x10
-
-/* AX88172 Medium Status Register values */
-#define AX_MEDIUM_FULL_DUPLEX 0x02
-#define AX_MEDIUM_TX_ABORT_ALLOW 0x04
-#define AX_MEDIUM_FLOW_CONTROL_EN 0x10
-
-#define AX_MCAST_FILTER_SIZE 8
-#define AX_MAX_MCAST 64
-
-#define AX_EEPROM_LEN 0x40
-
-#define AX_SWRESET_CLEAR 0x00
-#define AX_SWRESET_RR 0x01
-#define AX_SWRESET_RT 0x02
-#define AX_SWRESET_PRTE 0x04
-#define AX_SWRESET_PRL 0x08
-#define AX_SWRESET_BZ 0x10
-#define AX_SWRESET_IPRL 0x20
-#define AX_SWRESET_IPPD 0x40
-
-#define AX88772_IPG0_DEFAULT 0x15
-#define AX88772_IPG1_DEFAULT 0x0c
-#define AX88772_IPG2_DEFAULT 0x12
-
-#define AX88772_MEDIUM_FULL_DUPLEX 0x0002
-#define AX88772_MEDIUM_RESERVED 0x0004
-#define AX88772_MEDIUM_RX_FC_ENABLE 0x0010
-#define AX88772_MEDIUM_TX_FC_ENABLE 0x0020
-#define AX88772_MEDIUM_PAUSE_FORMAT 0x0080
-#define AX88772_MEDIUM_RX_ENABLE 0x0100
-#define AX88772_MEDIUM_100MB 0x0200
-#define AX88772_MEDIUM_DEFAULT \
- (AX88772_MEDIUM_FULL_DUPLEX | AX88772_MEDIUM_RX_FC_ENABLE | \
- AX88772_MEDIUM_TX_FC_ENABLE | AX88772_MEDIUM_100MB | \
- AX88772_MEDIUM_RESERVED | AX88772_MEDIUM_RX_ENABLE )
-
-#define AX_EEPROM_MAGIC 0xdeadbeef
-
-/* This structure cannot exceed sizeof(unsigned long [5]) AKA 20 bytes */
-struct ax8817x_data {
- u8 multi_filter[AX_MCAST_FILTER_SIZE];
-};
-
-struct ax88172_int_data {
- u16 res1;
- u8 link;
- u16 res2;
- u8 status;
- u16 res3;
-} __attribute__ ((packed));
-
-static int ax8817x_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
- u16 size, void *data)
-{
- return usb_control_msg(
- dev->udev,
- usb_rcvctrlpipe(dev->udev, 0),
- cmd,
- USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- value,
- index,
- data,
- size,
- CONTROL_TIMEOUT_MS);
-}
-
-static int ax8817x_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
- u16 size, void *data)
-{
- return usb_control_msg(
- dev->udev,
- usb_sndctrlpipe(dev->udev, 0),
- cmd,
- USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- value,
- index,
- data,
- size,
- CONTROL_TIMEOUT_MS);
-}
-
-static void ax8817x_async_cmd_callback(struct urb *urb, struct pt_regs *regs)
-{
- struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context;
-
- if (urb->status < 0)
- printk(KERN_DEBUG "ax8817x_async_cmd_callback() failed with %d",
- urb->status);
-
- kfree(req);
- usb_free_urb(urb);
-}
-
-static void ax8817x_status(struct usbnet *dev, struct urb *urb)
-{
- struct ax88172_int_data *event;
- int link;
-
- if (urb->actual_length < 8)
- return;
-
- event = urb->transfer_buffer;
- link = event->link & 0x01;
- if (netif_carrier_ok(dev->net) != link) {
- if (link) {
- netif_carrier_on(dev->net);
- defer_kevent (dev, EVENT_LINK_RESET );
- } else
- netif_carrier_off(dev->net);
- devdbg(dev, "ax8817x - Link Status is: %d", link);
- }
-}
-
-static void ax8817x_write_cmd_async(struct usbnet *dev, u8 cmd, u16 value, u16 index,
- u16 size, void *data)
-{
- struct usb_ctrlrequest *req;
- int status;
- struct urb *urb;
-
- if ((urb = usb_alloc_urb(0, GFP_ATOMIC)) == NULL) {
- devdbg(dev, "Error allocating URB in write_cmd_async!");
- return;
- }
-
- if ((req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC)) == NULL) {
- deverr(dev, "Failed to allocate memory for control request");
- usb_free_urb(urb);
- return;
- }
-
- req->bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE;
- req->bRequest = cmd;
- req->wValue = cpu_to_le16(value);
- req->wIndex = cpu_to_le16(index);
- req->wLength = cpu_to_le16(size);
-
- usb_fill_control_urb(urb, dev->udev,
- usb_sndctrlpipe(dev->udev, 0),
- (void *)req, data, size,
- ax8817x_async_cmd_callback, req);
-
- if((status = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
- deverr(dev, "Error submitting the control message: status=%d", status);
- kfree(req);
- usb_free_urb(urb);
- }
-}
-
-static void ax8817x_set_multicast(struct net_device *net)
-{
- struct usbnet *dev = netdev_priv(net);
- struct ax8817x_data *data = (struct ax8817x_data *)&dev->data;
- u8 rx_ctl = 0x8c;
-
- if (net->flags & IFF_PROMISC) {
- rx_ctl |= 0x01;
- } else if (net->flags & IFF_ALLMULTI
- || net->mc_count > AX_MAX_MCAST) {
- rx_ctl |= 0x02;
- } else if (net->mc_count == 0) {
- /* just broadcast and directed */
- } else {
- /* We use the 20 byte dev->data
- * for our 8 byte filter buffer
- * to avoid allocating memory that
- * is tricky to free later */
- struct dev_mc_list *mc_list = net->mc_list;
- u32 crc_bits;
- int i;
-
- memset(data->multi_filter, 0, AX_MCAST_FILTER_SIZE);
-
- /* Build the multicast hash filter. */
- for (i = 0; i < net->mc_count; i++) {
- crc_bits =
- ether_crc(ETH_ALEN,
- mc_list->dmi_addr) >> 26;
- data->multi_filter[crc_bits >> 3] |=
- 1 << (crc_bits & 7);
- mc_list = mc_list->next;
- }
-
- ax8817x_write_cmd_async(dev, AX_CMD_WRITE_MULTI_FILTER, 0, 0,
- AX_MCAST_FILTER_SIZE, data->multi_filter);
-
- rx_ctl |= 0x10;
- }
-
- ax8817x_write_cmd_async(dev, AX_CMD_WRITE_RX_CTL, rx_ctl, 0, 0, NULL);
-}
-
-static int ax8817x_mdio_read(struct net_device *netdev, int phy_id, int loc)
-{
- struct usbnet *dev = netdev_priv(netdev);
- u16 res;
- u8 buf[1];
-
- ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, &buf);
- ax8817x_read_cmd(dev, AX_CMD_READ_MII_REG, phy_id, (__u16)loc, 2, (u16 *)&res);
- ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf);
-
- return res & 0xffff;
-}
-
-static void ax8817x_mdio_write(struct net_device *netdev, int phy_id, int loc, int val)
-{
- struct usbnet *dev = netdev_priv(netdev);
- u16 res = val;
- u8 buf[1];
-
- ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, &buf);
- ax8817x_write_cmd(dev, AX_CMD_WRITE_MII_REG, phy_id, (__u16)loc, 2, (u16 *)&res);
- ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf);
-}
-
-static int ax88172_link_reset(struct usbnet *dev)
-{
- u16 lpa;
- u8 mode;
-
- mode = AX_MEDIUM_TX_ABORT_ALLOW | AX_MEDIUM_FLOW_CONTROL_EN;
- lpa = ax8817x_mdio_read(dev->net, dev->mii.phy_id, MII_LPA);
- if (lpa & LPA_DUPLEX)
- mode |= AX_MEDIUM_FULL_DUPLEX;
- ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL);
-
- return 0;
-}
-
-static void ax8817x_get_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
-{
- struct usbnet *dev = netdev_priv(net);
- u8 opt;
-
- if (ax8817x_read_cmd(dev, AX_CMD_READ_MONITOR_MODE, 0, 0, 1, &opt) < 0) {
- wolinfo->supported = 0;
- wolinfo->wolopts = 0;
- return;
- }
- wolinfo->supported = WAKE_PHY | WAKE_MAGIC;
- wolinfo->wolopts = 0;
- if (opt & AX_MONITOR_MODE) {
- if (opt & AX_MONITOR_LINK)
- wolinfo->wolopts |= WAKE_PHY;
- if (opt & AX_MONITOR_MAGIC)
- wolinfo->wolopts |= WAKE_MAGIC;
- }
-}
-
-static int ax8817x_set_wol(struct net_device *net, struct ethtool_wolinfo *wolinfo)
-{
- struct usbnet *dev = netdev_priv(net);
- u8 opt = 0;
- u8 buf[1];
-
- if (wolinfo->wolopts & WAKE_PHY)
- opt |= AX_MONITOR_LINK;
- if (wolinfo->wolopts & WAKE_MAGIC)
- opt |= AX_MONITOR_MAGIC;
- if (opt != 0)
- opt |= AX_MONITOR_MODE;
-
- if (ax8817x_write_cmd(dev, AX_CMD_WRITE_MONITOR_MODE,
- opt, 0, 0, &buf) < 0)
- return -EINVAL;
-
- return 0;
-}
-
-static int ax8817x_get_eeprom_len(struct net_device *net)
-{
- return AX_EEPROM_LEN;
-}
-
-static int ax8817x_get_eeprom(struct net_device *net,
- struct ethtool_eeprom *eeprom, u8 *data)
-{
- struct usbnet *dev = netdev_priv(net);
- u16 *ebuf = (u16 *)data;
- int i;
-
- /* Crude hack to ensure that we don't overwrite memory
- * if an odd length is supplied
- */
- if (eeprom->len % 2)
- return -EINVAL;
-
- eeprom->magic = AX_EEPROM_MAGIC;
-
- /* ax8817x returns 2 bytes from eeprom on read */
- for (i=0; i < eeprom->len / 2; i++) {
- if (ax8817x_read_cmd(dev, AX_CMD_READ_EEPROM,
- eeprom->offset + i, 0, 2, &ebuf[i]) < 0)
- return -EINVAL;
- }
- return 0;
-}
-
-static void ax8817x_get_drvinfo (struct net_device *net,
- struct ethtool_drvinfo *info)
-{
- /* Inherit standard device info */
- usbnet_get_drvinfo(net, info);
- info->eedump_len = 0x3e;
-}
-
-static int ax8817x_get_settings(struct net_device *net, struct ethtool_cmd *cmd)
-{
- struct usbnet *dev = netdev_priv(net);
-
- return mii_ethtool_gset(&dev->mii,cmd);
-}
-
-static int ax8817x_set_settings(struct net_device *net, struct ethtool_cmd *cmd)
-{
- struct usbnet *dev = netdev_priv(net);
-
- return mii_ethtool_sset(&dev->mii,cmd);
-}
-
-/* We need to override some ethtool_ops so we require our
- own structure so we don't interfere with other usbnet
- devices that may be connected at the same time. */
-static struct ethtool_ops ax8817x_ethtool_ops = {
- .get_drvinfo = ax8817x_get_drvinfo,
- .get_link = ethtool_op_get_link,
- .get_msglevel = usbnet_get_msglevel,
- .set_msglevel = usbnet_set_msglevel,
- .get_wol = ax8817x_get_wol,
- .set_wol = ax8817x_set_wol,
- .get_eeprom_len = ax8817x_get_eeprom_len,
- .get_eeprom = ax8817x_get_eeprom,
- .get_settings = ax8817x_get_settings,
- .set_settings = ax8817x_set_settings,
-};
-
-static int ax8817x_bind(struct usbnet *dev, struct usb_interface *intf)
-{
- int ret = 0;
- void *buf;
- int i;
- unsigned long gpio_bits = dev->driver_info->data;
-
- get_endpoints(dev,intf);
-
- buf = kmalloc(ETH_ALEN, GFP_KERNEL);
- if(!buf) {
- ret = -ENOMEM;
- goto out1;
- }
-
- /* Toggle the GPIOs in a manufacturer/model specific way */
- for (i = 2; i >= 0; i--) {
- if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_GPIOS,
- (gpio_bits >> (i * 8)) & 0xff, 0, 0,
- buf)) < 0)
- goto out2;
- msleep(5);
- }
-
- if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x80, 0, 0, buf)) < 0) {
- dbg("send AX_CMD_WRITE_RX_CTL failed: %d", ret);
- goto out2;
- }
-
- /* Get the MAC address */
- memset(buf, 0, ETH_ALEN);
- if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, 6, buf)) < 0) {
- dbg("read AX_CMD_READ_NODE_ID failed: %d", ret);
- goto out2;
- }
- memcpy(dev->net->dev_addr, buf, ETH_ALEN);
-
- /* Get the PHY id */
- if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf)) < 0) {
- dbg("error on read AX_CMD_READ_PHY_ID: %02x", ret);
- goto out2;
- } else if (ret < 2) {
- /* this should always return 2 bytes */
- dbg("AX_CMD_READ_PHY_ID returned less than 2 bytes: ret=%02x", ret);
- ret = -EIO;
- goto out2;
- }
-
- /* Initialize MII structure */
- dev->mii.dev = dev->net;
- dev->mii.mdio_read = ax8817x_mdio_read;
- dev->mii.mdio_write = ax8817x_mdio_write;
- dev->mii.phy_id_mask = 0x3f;
- dev->mii.reg_num_mask = 0x1f;
- dev->mii.phy_id = *((u8 *)buf + 1);
-
- dev->net->set_multicast_list = ax8817x_set_multicast;
- dev->net->ethtool_ops = &ax8817x_ethtool_ops;
-
- ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
- ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
- ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
- mii_nway_restart(&dev->mii);
-
- return 0;
-out2:
- kfree(buf);
-out1:
- return ret;
-}
-
-static struct ethtool_ops ax88772_ethtool_ops = {
- .get_drvinfo = ax8817x_get_drvinfo,
- .get_link = ethtool_op_get_link,
- .get_msglevel = usbnet_get_msglevel,
- .set_msglevel = usbnet_set_msglevel,
- .get_wol = ax8817x_get_wol,
- .set_wol = ax8817x_set_wol,
- .get_eeprom_len = ax8817x_get_eeprom_len,
- .get_eeprom = ax8817x_get_eeprom,
- .get_settings = ax8817x_get_settings,
- .set_settings = ax8817x_set_settings,
-};
-
-static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
-{
- int ret;
- void *buf;
-
- get_endpoints(dev,intf);
-
- buf = kmalloc(6, GFP_KERNEL);
- if(!buf) {
- dbg ("Cannot allocate memory for buffer");
- ret = -ENOMEM;
- goto out1;
- }
-
- if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_GPIOS,
- 0x00B0, 0, 0, buf)) < 0)
- goto out2;
-
- msleep(5);
- if ((ret = ax8817x_write_cmd(dev, AX_CMD_SW_PHY_SELECT, 0x0001, 0, 0, buf)) < 0) {
- dbg("Select PHY #1 failed: %d", ret);
- goto out2;
- }
-
- if ((ret =
- ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPPD, 0, 0, buf)) < 0) {
- dbg("Failed to power down internal PHY: %d", ret);
- goto out2;
- }
-
- msleep(150);
- if ((ret =
- ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_CLEAR, 0, 0, buf)) < 0) {
- dbg("Failed to perform software reset: %d", ret);
- goto out2;
- }
-
- msleep(150);
- if ((ret =
- ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPRL | AX_SWRESET_PRL, 0, 0, buf)) < 0) {
- dbg("Failed to set Internal/External PHY reset control: %d", ret);
- goto out2;
- }
-
- msleep(150);
- if ((ret =
- ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x0000, 0, 0,
- buf)) < 0) {
- dbg("Failed to reset RX_CTL: %d", ret);
- goto out2;
- }
-
- /* Get the MAC address */
- memset(buf, 0, ETH_ALEN);
- if ((ret = ax8817x_read_cmd(dev, AX88772_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf)) < 0) {
- dbg("Failed to read MAC address: %d", ret);
- goto out2;
- }
- memcpy(dev->net->dev_addr, buf, ETH_ALEN);
-
- if ((ret = ax8817x_write_cmd(dev, AX_CMD_SET_SW_MII, 0, 0, 0, buf)) < 0) {
- dbg("Enabling software MII failed: %d", ret);
- goto out2;
- }
-
- if (((ret =
- ax8817x_read_cmd(dev, AX_CMD_READ_MII_REG, 0x0010, 2, 2, buf)) < 0)
- || (*((u16 *)buf) != 0x003b)) {
- dbg("Read PHY register 2 must be 0x3b00: %d", ret);
- goto out2;
- }
-
- /* Initialize MII structure */
- dev->mii.dev = dev->net;
- dev->mii.mdio_read = ax8817x_mdio_read;
- dev->mii.mdio_write = ax8817x_mdio_write;
- dev->mii.phy_id_mask = 0xff;
- dev->mii.reg_num_mask = 0xff;
-
- /* Get the PHY id */
- if ((ret = ax8817x_read_cmd(dev, AX_CMD_READ_PHY_ID, 0, 0, 2, buf)) < 0) {
- dbg("Error reading PHY ID: %02x", ret);
- goto out2;
- } else if (ret < 2) {
- /* this should always return 2 bytes */
- dbg("AX_CMD_READ_PHY_ID returned less than 2 bytes: ret=%02x",
- ret);
- ret = -EIO;
- goto out2;
- }
- dev->mii.phy_id = *((u8 *)buf + 1);
-
- if ((ret =
- ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_PRL, 0, 0, buf)) < 0) {
- dbg("Set external PHY reset pin level: %d", ret);
- goto out2;
- }
- msleep(150);
- if ((ret =
- ax8817x_write_cmd(dev, AX_CMD_SW_RESET, AX_SWRESET_IPRL | AX_SWRESET_PRL, 0, 0, buf)) < 0) {
- dbg("Set Internal/External PHY reset control: %d", ret);
- goto out2;
- }
- msleep(150);
-
-
- dev->net->set_multicast_list = ax8817x_set_multicast;
- dev->net->ethtool_ops = &ax88772_ethtool_ops;
-
- ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
- ax8817x_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
- ADVERTISE_ALL | ADVERTISE_CSMA);
- mii_nway_restart(&dev->mii);
-
- if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, AX88772_MEDIUM_DEFAULT, 0, 0, buf)) < 0) {
- dbg("Write medium mode register: %d", ret);
- goto out2;
- }
-
- if ((ret = ax8817x_write_cmd(dev, AX_CMD_WRITE_IPG0, AX88772_IPG0_DEFAULT | AX88772_IPG1_DEFAULT,AX88772_IPG2_DEFAULT, 0, buf)) < 0) {
- dbg("Write IPG,IPG1,IPG2 failed: %d", ret);
- goto out2;
- }
- if ((ret =
- ax8817x_write_cmd(dev, AX_CMD_SET_HW_MII, 0, 0, 0, &buf)) < 0) {
- dbg("Failed to set hardware MII: %02x", ret);
- goto out2;
- }
-
- /* Set RX_CTL to default values with 2k buffer, and enable cactus */
- if ((ret =
- ax8817x_write_cmd(dev, AX_CMD_WRITE_RX_CTL, 0x0088, 0, 0,
- buf)) < 0) {
- dbg("Reset RX_CTL failed: %d", ret);
- goto out2;
- }
-
- kfree(buf);
-
- return 0;
-
-out2:
- kfree(buf);
-out1:
- return ret;
-}
-
-static int ax88772_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
-{
- u32 *header;
- char *packet;
- struct sk_buff *ax_skb;
- u16 size;
-
- header = (u32 *) skb->data;
- le32_to_cpus(header);
- packet = (char *)(header + 1);
-
- skb_pull(skb, 4);
-
- while (skb->len > 0) {
- if ((short)(*header & 0x0000ffff) !=
- ~((short)((*header & 0xffff0000) >> 16))) {
- devdbg(dev,"header length data is error");
- }
- /* get the packet length */
- size = (u16) (*header & 0x0000ffff);
-
- if ((skb->len) - ((size + 1) & 0xfffe) == 0)
- return 2;
- if (size > ETH_FRAME_LEN) {
- devdbg(dev,"invalid rx length %d", size);
- return 0;
- }
- ax_skb = skb_clone(skb, GFP_ATOMIC);
- if (ax_skb) {
- ax_skb->len = size;
- ax_skb->data = packet;
- ax_skb->tail = packet + size;
- skb_return(dev, ax_skb);
- } else {
- return 0;
- }
-
- skb_pull(skb, (size + 1) & 0xfffe);
-
- if (skb->len == 0)
- break;
-
- header = (u32 *) skb->data;
- le32_to_cpus(header);
- packet = (char *)(header + 1);
- skb_pull(skb, 4);
- }
-
- if (skb->len < 0) {
- devdbg(dev,"invalid rx length %d", skb->len);
- return 0;
- }
- return 1;
-}
-
-static struct sk_buff *ax88772_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
- int flags)
-{
- int padlen;
- int headroom = skb_headroom(skb);
- int tailroom = skb_tailroom(skb);
- u32 *packet_len;
- u32 *padbytes_ptr;
-
- padlen = ((skb->len + 4) % 512) ? 0 : 4;
-
- if ((!skb_cloned(skb))
- && ((headroom + tailroom) >= (4 + padlen))) {
- if ((headroom < 4) || (tailroom < padlen)) {
- skb->data = memmove(skb->head + 4, skb->data, skb->len);
- skb->tail = skb->data + skb->len;
- }
- } else {
- struct sk_buff *skb2;
- skb2 = skb_copy_expand(skb, 4, padlen, flags);
- dev_kfree_skb_any(skb);
- skb = skb2;
- if (!skb)
- return NULL;
- }
-
- packet_len = (u32 *) skb_push(skb, 4);
-
- packet_len = (u32 *) skb->data;
- *packet_len = (((skb->len - 4) ^ 0x0000ffff) << 16) + (skb->len - 4);
-
- if ((skb->len % 512) == 0) {
- padbytes_ptr = (u32 *) skb->tail;
- *padbytes_ptr = 0xffff0000;
- skb_put(skb, padlen);
- }
- return skb;
-}
-
-static int ax88772_link_reset(struct usbnet *dev)
-{
- u16 lpa;
- u16 mode;
-
- mode = AX88772_MEDIUM_DEFAULT;
- lpa = ax8817x_mdio_read(dev->net, dev->mii.phy_id, MII_LPA);
-
- if ((lpa & LPA_DUPLEX) == 0)
- mode &= ~AX88772_MEDIUM_FULL_DUPLEX;
- if ((lpa & LPA_100) == 0)
- mode &= ~AX88772_MEDIUM_100MB;
- ax8817x_write_cmd(dev, AX_CMD_WRITE_MEDIUM_MODE, mode, 0, 0, NULL);
-
- return 0;
-}
-
-static const struct driver_info ax8817x_info = {
- .description = "ASIX AX8817x USB 2.0 Ethernet",
- .bind = ax8817x_bind,
- .status = ax8817x_status,
- .link_reset = ax88172_link_reset,
- .reset = ax88172_link_reset,
- .flags = FLAG_ETHER,
- .data = 0x00130103,
-};
-
-static const struct driver_info dlink_dub_e100_info = {
- .description = "DLink DUB-E100 USB Ethernet",
- .bind = ax8817x_bind,
- .status = ax8817x_status,
- .link_reset = ax88172_link_reset,
- .reset = ax88172_link_reset,
- .flags = FLAG_ETHER,
- .data = 0x009f9d9f,
-};
-
-static const struct driver_info netgear_fa120_info = {
- .description = "Netgear FA-120 USB Ethernet",
- .bind = ax8817x_bind,
- .status = ax8817x_status,
- .link_reset = ax88172_link_reset,
- .reset = ax88172_link_reset,
- .flags = FLAG_ETHER,
- .data = 0x00130103,
-};
-
-static const struct driver_info hawking_uf200_info = {
- .description = "Hawking UF200 USB Ethernet",
- .bind = ax8817x_bind,
- .status = ax8817x_status,
- .link_reset = ax88172_link_reset,
- .reset = ax88172_link_reset,
- .flags = FLAG_ETHER,
- .data = 0x001f1d1f,
-};
-
-static const struct driver_info ax88772_info = {
- .description = "ASIX AX88772 USB 2.0 Ethernet",
- .bind = ax88772_bind,
- .status = ax8817x_status,
- .link_reset = ax88772_link_reset,
- .reset = ax88772_link_reset,
- .flags = FLAG_ETHER | FLAG_FRAMING_AX,
- .rx_fixup = ax88772_rx_fixup,
- .tx_fixup = ax88772_tx_fixup,
- .data = 0x00130103,
-};
-
-#endif /* CONFIG_USB_AX8817X */
-
-
-\f
-#ifdef CONFIG_USB_BELKIN
-#define HAVE_HARDWARE
-
-/*-------------------------------------------------------------------------
- *
- * Belkin F5U104 ... two NetChip 2280 devices + Atmel microcontroller
- *
- * ... also two eTEK designs, including one sold as "Advance USBNET"
- *
- *-------------------------------------------------------------------------*/
-
-static const struct driver_info belkin_info = {
- .description = "Belkin, eTEK, or compatible",
-};
-
-#endif /* CONFIG_USB_BELKIN */
-
-
-\f
-/*-------------------------------------------------------------------------
- *
- * Communications Device Class declarations.
- * Used by CDC Ethernet, and some CDC variants
- *
- *-------------------------------------------------------------------------*/
-
-#ifdef CONFIG_USB_CDCETHER
-#define NEED_GENERIC_CDC
-#endif
-
-#ifdef CONFIG_USB_ZAURUS
-/* Ethernet variant uses funky framing, broken ethernet addressing */
-#define NEED_GENERIC_CDC
-#endif
-
-#ifdef CONFIG_USB_RNDIS
-/* ACM variant uses even funkier framing, complex control RPC scheme */
-#define NEED_GENERIC_CDC
-#endif
-
-
-#ifdef NEED_GENERIC_CDC
-
-#include <linux/usb_cdc.h>
-
-struct cdc_state {
- struct usb_cdc_header_desc *header;
- struct usb_cdc_union_desc *u;
- struct usb_cdc_ether_desc *ether;
- struct usb_interface *control;
- struct usb_interface *data;
-};
-
-static struct usb_driver usbnet_driver;
-
-/*
- * 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.
- */
-static int 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;
-
- 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 = (intf->cur_altsetting->desc.bInterfaceProtocol == 0xff);
-
- 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_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->u->bLength);
- goto bad_desc;
- }
- dev->net->mtu = le16_to_cpup (
- &info->ether->wMaxSegmentSize)
- - ETH_HLEN;
- /* 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];
- }
-
- 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 (&usbnet_driver, info->data, dev);
- if (status < 0)
- return status;
- status = get_endpoints (dev, info->data);
- if (status < 0) {
- /* ensure immediate exit from usbnet_disconnect */
- usb_set_intfdata(info->data, NULL);
- usb_driver_release_interface (&usbnet_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 (desc->bmAttributes != USB_ENDPOINT_XFER_INT
- || !(desc->bEndpointAddress & USB_DIR_IN)
- || (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 (&usbnet_driver, info->data);
- return -ENODEV;
- }
- return 0;
-
-bad_desc:
- dev_info (&dev->udev->dev, "bad CDC descriptors\n");
- return -ENODEV;
-}
-
-static void cdc_unbind (struct usbnet *dev, struct usb_interface *intf)
-{
- struct cdc_state *info = (void *) &dev->data;
-
- /* 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 (&usbnet_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 (&usbnet_driver, info->control);
- info->control = NULL;
- }
-}
-
-#endif /* NEED_GENERIC_CDC */
-
-\f
-#ifdef CONFIG_USB_CDCETHER
-#define HAVE_HARDWARE
-
-/*-------------------------------------------------------------------------
- *
- * Communications Device Class, Ethernet Control model
- *
- * Takes two interfaces. The DATA interface is inactive till an altsetting
- * is selected. Configuration data includes class descriptors.
- *
- * This should interop with whatever the 2.4 "CDCEther.c" driver
- * (by Brad Hards) talked with.
- *
- *-------------------------------------------------------------------------*/
-
-#include <linux/ctype.h>
-
-
-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;
- // case USB_CDC_NOTIFY_RESPONSE_AVAILABLE: /* RNDIS; or unsolicited */
- 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 = 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 (&usbnet_driver, info->data);
- return status;
- }
-
- /* FIXME cdc-ether has some multicast code too, though it complains
- * in routine cases. info->ether describes the multicast support.
- */
- 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 = cdc_unbind,
- .status = cdc_status,
-};
-
-#endif /* CONFIG_USB_CDCETHER */
-
-
-\f
-#ifdef CONFIG_USB_EPSON2888
-#define HAVE_HARDWARE
-
-/*-------------------------------------------------------------------------
- *
- * EPSON USB clients
- *
- * This is the same idea as Linux PDAs (below) except the firmware in the
- * device might not be Tux-powered. Epson provides reference firmware that
- * implements this interface. Product developers can reuse or modify that
- * code, such as by using their own product and vendor codes.
- *
- * Support was from Juro Bystricky <bystricky.juro@erd.epson.com>
- *
- *-------------------------------------------------------------------------*/
-
-static const struct driver_info epson2888_info = {
- .description = "Epson USB Device",
- .check_connect = always_connected,
-
- .in = 4, .out = 3,
-};
-
-#endif /* CONFIG_USB_EPSON2888 */
-
-\f
-#ifdef CONFIG_USB_GENESYS
-#define HAVE_HARDWARE
-
-/*-------------------------------------------------------------------------
- *
- * GeneSys GL620USB-A (www.genesyslogic.com.tw)
- *
- * ... should partially interop with the Win32 driver for this hardware
- * The GeneSys docs imply there's some NDIS issue motivating this framing.
- *
- * Some info from GeneSys:
- * - GL620USB-A is full duplex; GL620USB is only half duplex for bulk.
- * (Some cables, like the BAFO-100c, use the half duplex version.)
- * - For the full duplex model, the low bit of the version code says
- * which side is which ("left/right").
- * - For the half duplex type, a control/interrupt handshake settles
- * the transfer direction. (That's disabled here, partially coded.)
- * A control URB would block until other side writes an interrupt.
- *
- * Original code from Jiun-Jie Huang <huangjj@genesyslogic.com.tw>
- * and merged into "usbnet" by Stanislav Brabec <utx@penguin.cz>.
- *
- *-------------------------------------------------------------------------*/
-
-// control msg write command
-#define GENELINK_CONNECT_WRITE 0xF0
-// interrupt pipe index
-#define GENELINK_INTERRUPT_PIPE 0x03
-// interrupt read buffer size
-#define INTERRUPT_BUFSIZE 0x08
-// interrupt pipe interval value
-#define GENELINK_INTERRUPT_INTERVAL 0x10
-// max transmit packet number per transmit
-#define GL_MAX_TRANSMIT_PACKETS 32
-// max packet length
-#define GL_MAX_PACKET_LEN 1514
-// max receive buffer size
-#define GL_RCV_BUF_SIZE \
- (((GL_MAX_PACKET_LEN + 4) * GL_MAX_TRANSMIT_PACKETS) + 4)
-
-struct gl_packet {
- u32 packet_length;
- char packet_data [1];
-};
-
-struct gl_header {
- u32 packet_count;
- struct gl_packet packets;
-};
-
-#ifdef GENELINK_ACK
-
-// FIXME: this code is incomplete, not debugged; it doesn't
-// handle interrupts correctly. interrupts should be generic
-// code like all other device I/O, anyway.
-
-struct gl_priv {
- struct urb *irq_urb;
- char irq_buf [INTERRUPT_BUFSIZE];
-};
-
-static inline int gl_control_write (struct usbnet *dev, u8 request, u16 value)
-{
- int retval;
-
- retval = usb_control_msg (dev->udev,
- usb_sndctrlpipe (dev->udev, 0),
- request,
- USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
- value,
- 0, // index
- 0, // data buffer
- 0, // size
- CONTROL_TIMEOUT_MS);
- return retval;
-}
-
-static void gl_interrupt_complete (struct urb *urb, struct pt_regs *regs)
-{
- int status = urb->status;
-
- switch (status) {
- case 0:
- /* success */
- break;
- case -ECONNRESET:
- case -ENOENT:
- case -ESHUTDOWN:
- /* this urb is terminated, clean up */
- dbg("%s - urb shutting down with status: %d",
- __FUNCTION__, status);
- return;
- default:
- dbg("%s - nonzero urb status received: %d",
- __FUNCTION__, urb->status);
- }
-
- status = usb_submit_urb (urb, GFP_ATOMIC);
- if (status)
- err ("%s - usb_submit_urb failed with result %d",
- __FUNCTION__, status);
-}
-
-static int gl_interrupt_read (struct usbnet *dev)
-{
- struct gl_priv *priv = dev->priv_data;
- int retval;
-
- // issue usb interrupt read
- if (priv && priv->irq_urb) {
- // submit urb
- if ((retval = usb_submit_urb (priv->irq_urb, GFP_KERNEL)) != 0)
- dbg ("gl_interrupt_read: submit fail - %X...", retval);
- else
- dbg ("gl_interrupt_read: submit success...");
- }
-
- return 0;
-}
-
-// check whether another side is connected
-static int genelink_check_connect (struct usbnet *dev)
-{
- int retval;
-
- dbg ("genelink_check_connect...");
-
- // detect whether another side is connected
- if ((retval = gl_control_write (dev, GENELINK_CONNECT_WRITE, 0)) != 0) {
- dbg ("%s: genelink_check_connect write fail - %X",
- dev->net->name, retval);
- return retval;
- }
-
- // usb interrupt read to ack another side
- if ((retval = gl_interrupt_read (dev)) != 0) {
- dbg ("%s: genelink_check_connect read fail - %X",
- dev->net->name, retval);
- return retval;
- }
-
- dbg ("%s: genelink_check_connect read success", dev->net->name);
- return 0;
-}
-
-// allocate and initialize the private data for genelink
-static int genelink_init (struct usbnet *dev)
-{
- struct gl_priv *priv;
-
- // allocate the private data structure
- if ((priv = kmalloc (sizeof *priv, GFP_KERNEL)) == 0) {
- dbg ("%s: cannot allocate private data per device",
- dev->net->name);
- return -ENOMEM;
- }
-
- // allocate irq urb
- if ((priv->irq_urb = usb_alloc_urb (0, GFP_KERNEL)) == 0) {
- dbg ("%s: cannot allocate private irq urb per device",
- dev->net->name);
- kfree (priv);
- return -ENOMEM;
- }
-
- // fill irq urb
- usb_fill_int_urb (priv->irq_urb, dev->udev,
- usb_rcvintpipe (dev->udev, GENELINK_INTERRUPT_PIPE),
- priv->irq_buf, INTERRUPT_BUFSIZE,
- gl_interrupt_complete, 0,
- GENELINK_INTERRUPT_INTERVAL);
-
- // set private data pointer
- dev->priv_data = priv;
-
- return 0;
-}
-
-// release the private data
-static int genelink_free (struct usbnet *dev)
-{
- struct gl_priv *priv = dev->priv_data;
-
- if (!priv)
- return 0;
-
-// FIXME: can't cancel here; it's synchronous, and
-// should have happened earlier in any case (interrupt
-// handling needs to be generic)
-
- // cancel irq urb first
- usb_kill_urb (priv->irq_urb);
-
- // free irq urb
- usb_free_urb (priv->irq_urb);
-
- // free the private data structure
- kfree (priv);
-
- return 0;
-}
-
-#endif
-
-static int genelink_rx_fixup (struct usbnet *dev, struct sk_buff *skb)
-{
- struct gl_header *header;
- struct gl_packet *packet;
- struct sk_buff *gl_skb;
- u32 size;
-
- header = (struct gl_header *) skb->data;
-
- // get the packet count of the received skb
- le32_to_cpus (&header->packet_count);
- if ((header->packet_count > GL_MAX_TRANSMIT_PACKETS)
- || (header->packet_count < 0)) {
- dbg ("genelink: invalid received packet count %d",
- header->packet_count);
- return 0;
- }
-
- // set the current packet pointer to the first packet
- packet = &header->packets;
-
- // decrement the length for the packet count size 4 bytes
- skb_pull (skb, 4);
-
- while (header->packet_count > 1) {
- // get the packet length
- size = packet->packet_length;
-
- // this may be a broken packet
- if (size > GL_MAX_PACKET_LEN) {
- dbg ("genelink: invalid rx length %d", size);
- return 0;
- }
-
- // allocate the skb for the individual packet
- gl_skb = alloc_skb (size, GFP_ATOMIC);
- if (gl_skb) {
-
- // copy the packet data to the new skb
- memcpy(skb_put(gl_skb, size), packet->packet_data, size);
- skb_return (dev, skb);
- }
-
- // advance to the next packet
- packet = (struct gl_packet *)
- &packet->packet_data [size];
- header->packet_count--;
-
- // shift the data pointer to the next gl_packet
- skb_pull (skb, size + 4);
- }
-
- // skip the packet length field 4 bytes
- skb_pull (skb, 4);
-
- if (skb->len > GL_MAX_PACKET_LEN) {
- dbg ("genelink: invalid rx length %d", skb->len);
- return 0;
- }
- return 1;
-}
-
-static struct sk_buff *
-genelink_tx_fixup (struct usbnet *dev, struct sk_buff *skb, int flags)
-{
- int padlen;
- int length = skb->len;
- int headroom = skb_headroom (skb);
- int tailroom = skb_tailroom (skb);
- u32 *packet_count;
- u32 *packet_len;
-
- // FIXME: magic numbers, bleech
- padlen = ((skb->len + (4 + 4*1)) % 64) ? 0 : 1;
-
- if ((!skb_cloned (skb))
- && ((headroom + tailroom) >= (padlen + (4 + 4*1)))) {
- if ((headroom < (4 + 4*1)) || (tailroom < padlen)) {
- skb->data = memmove (skb->head + (4 + 4*1),
- skb->data, skb->len);
- skb->tail = skb->data + skb->len;
- }
- } else {
- struct sk_buff *skb2;
- skb2 = skb_copy_expand (skb, (4 + 4*1) , padlen, flags);
- dev_kfree_skb_any (skb);
- skb = skb2;
- if (!skb)
- return NULL;
- }
-
- // attach the packet count to the header
- packet_count = (u32 *) skb_push (skb, (4 + 4*1));
- packet_len = packet_count + 1;
-
- // FIXME little endian?
- *packet_count = 1;
- *packet_len = length;
-
- // add padding byte
- if ((skb->len % dev->maxpacket) == 0)
- skb_put (skb, 1);
-
- return skb;
-}
-
-static const struct driver_info genelink_info = {
- .description = "Genesys GeneLink",
- .flags = FLAG_FRAMING_GL | FLAG_NO_SETINT,
- .rx_fixup = genelink_rx_fixup,
- .tx_fixup = genelink_tx_fixup,
-
- .in = 1, .out = 2,
-
-#ifdef GENELINK_ACK
- .check_connect =genelink_check_connect,
-#endif
-};
-
-#endif /* CONFIG_USB_GENESYS */
-
-
-\f
-#ifdef CONFIG_USB_NET1080
-#define HAVE_HARDWARE
-
-/*-------------------------------------------------------------------------
- *
- * Netchip 1080 driver ... http://www.netchip.com
- * Used in LapLink cables
- *
- *-------------------------------------------------------------------------*/
-
-#define dev_packet_id data[0]
-#define frame_errors data[1]
-
-/*
- * NetChip framing of ethernet packets, supporting additional error
- * checks for links that may drop bulk packets from inside messages.
- * Odd USB length == always short read for last usb packet.
- * - nc_header
- * - Ethernet header (14 bytes)
- * - payload
- * - (optional padding byte, if needed so length becomes odd)
- * - nc_trailer
- *
- * This framing is to be avoided for non-NetChip devices.
- */
-
-struct nc_header { // packed:
- __le16 hdr_len; // sizeof nc_header (LE, all)
- __le16 packet_len; // payload size (including ethhdr)
- __le16 packet_id; // detects dropped packets
-#define MIN_HEADER 6
-
- // all else is optional, and must start with:
- // u16 vendorId; // from usb-if
- // u16 productId;
-} __attribute__((__packed__));
-
-#define PAD_BYTE ((unsigned char)0xAC)
-
-struct nc_trailer {
- __le16 packet_id;
-} __attribute__((__packed__));
-
-// packets may use FLAG_FRAMING_NC and optional pad
-#define FRAMED_SIZE(mtu) (sizeof (struct nc_header) \
- + sizeof (struct ethhdr) \
- + (mtu) \
- + 1 \
- + sizeof (struct nc_trailer))
-
-#define MIN_FRAMED FRAMED_SIZE(0)
-
-
-/*
- * Zero means no timeout; else, how long a 64 byte bulk packet may be queued
- * before the hardware drops it. If that's done, the driver will need to
- * frame network packets to guard against the dropped USB packets. The win32
- * driver sets this for both sides of the link.
- */
-#define NC_READ_TTL_MS ((u8)255) // ms
-
-/*
- * We ignore most registers and EEPROM contents.
- */
-#define REG_USBCTL ((u8)0x04)
-#define REG_TTL ((u8)0x10)
-#define REG_STATUS ((u8)0x11)
-
-/*
- * Vendor specific requests to read/write data
- */
-#define REQUEST_REGISTER ((u8)0x10)
-#define REQUEST_EEPROM ((u8)0x11)
-
-static int
-nc_vendor_read (struct usbnet *dev, u8 req, u8 regnum, u16 *retval_ptr)
-{
- int status = usb_control_msg (dev->udev,
- usb_rcvctrlpipe (dev->udev, 0),
- req,
- USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- 0, regnum,
- retval_ptr, sizeof *retval_ptr,
- CONTROL_TIMEOUT_MS);
- if (status > 0)
- status = 0;
- if (!status)
- le16_to_cpus (retval_ptr);
- return status;
-}
-
-static inline int
-nc_register_read (struct usbnet *dev, u8 regnum, u16 *retval_ptr)
-{
- return nc_vendor_read (dev, REQUEST_REGISTER, regnum, retval_ptr);
-}
-
-// no retval ... can become async, usable in_interrupt()
-static void
-nc_vendor_write (struct usbnet *dev, u8 req, u8 regnum, u16 value)
-{
- usb_control_msg (dev->udev,
- usb_sndctrlpipe (dev->udev, 0),
- req,
- USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- value, regnum,
- NULL, 0, // data is in setup packet
- CONTROL_TIMEOUT_MS);
-}
-
-static inline void
-nc_register_write (struct usbnet *dev, u8 regnum, u16 value)
-{
- nc_vendor_write (dev, REQUEST_REGISTER, regnum, value);
-}
-
-
-#if 0
-static void nc_dump_registers (struct usbnet *dev)
-{
- u8 reg;
- u16 *vp = kmalloc (sizeof (u16));
-
- if (!vp) {
- dbg ("no memory?");
- return;
- }
-
- dbg ("%s registers:", dev->net->name);
- for (reg = 0; reg < 0x20; reg++) {
- int retval;
-
- // reading some registers is trouble
- if (reg >= 0x08 && reg <= 0xf)
- continue;
- if (reg >= 0x12 && reg <= 0x1e)
- continue;
-
- retval = nc_register_read (dev, reg, vp);
- if (retval < 0)
- dbg ("%s reg [0x%x] ==> error %d",
- dev->net->name, reg, retval);
- else
- dbg ("%s reg [0x%x] = 0x%x",
- dev->net->name, reg, *vp);
- }
- kfree (vp);
-}
-#endif
-
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * Control register
- */
-
-#define USBCTL_WRITABLE_MASK 0x1f0f
-// bits 15-13 reserved, r/o
-#define USBCTL_ENABLE_LANG (1 << 12)
-#define USBCTL_ENABLE_MFGR (1 << 11)
-#define USBCTL_ENABLE_PROD (1 << 10)
-#define USBCTL_ENABLE_SERIAL (1 << 9)
-#define USBCTL_ENABLE_DEFAULTS (1 << 8)
-// bits 7-4 reserved, r/o
-#define USBCTL_FLUSH_OTHER (1 << 3)
-#define USBCTL_FLUSH_THIS (1 << 2)
-#define USBCTL_DISCONN_OTHER (1 << 1)
-#define USBCTL_DISCONN_THIS (1 << 0)
-
-static inline void nc_dump_usbctl (struct usbnet *dev, u16 usbctl)
-{
- if (!netif_msg_link (dev))
- return;
- devdbg (dev, "net1080 %s-%s usbctl 0x%x:%s%s%s%s%s;"
- " this%s%s;"
- " other%s%s; r/o 0x%x",
- dev->udev->bus->bus_name, dev->udev->devpath,
- usbctl,
- (usbctl & USBCTL_ENABLE_LANG) ? " lang" : "",
- (usbctl & USBCTL_ENABLE_MFGR) ? " mfgr" : "",
- (usbctl & USBCTL_ENABLE_PROD) ? " prod" : "",
- (usbctl & USBCTL_ENABLE_SERIAL) ? " serial" : "",
- (usbctl & USBCTL_ENABLE_DEFAULTS) ? " defaults" : "",
-
- (usbctl & USBCTL_FLUSH_OTHER) ? " FLUSH" : "",
- (usbctl & USBCTL_DISCONN_OTHER) ? " DIS" : "",
- (usbctl & USBCTL_FLUSH_THIS) ? " FLUSH" : "",
- (usbctl & USBCTL_DISCONN_THIS) ? " DIS" : "",
- usbctl & ~USBCTL_WRITABLE_MASK
- );
-}
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * Status register
- */
-
-#define STATUS_PORT_A (1 << 15)
-
-#define STATUS_CONN_OTHER (1 << 14)
-#define STATUS_SUSPEND_OTHER (1 << 13)
-#define STATUS_MAILBOX_OTHER (1 << 12)
-#define STATUS_PACKETS_OTHER(n) (((n) >> 8) && 0x03)
-
-#define STATUS_CONN_THIS (1 << 6)
-#define STATUS_SUSPEND_THIS (1 << 5)
-#define STATUS_MAILBOX_THIS (1 << 4)
-#define STATUS_PACKETS_THIS(n) (((n) >> 0) && 0x03)
-
-#define STATUS_UNSPEC_MASK 0x0c8c
-#define STATUS_NOISE_MASK ((u16)~(0x0303|STATUS_UNSPEC_MASK))
-
-
-static inline void nc_dump_status (struct usbnet *dev, u16 status)
-{
- if (!netif_msg_link (dev))
- return;
- devdbg (dev, "net1080 %s-%s status 0x%x:"
- " this (%c) PKT=%d%s%s%s;"
- " other PKT=%d%s%s%s; unspec 0x%x",
- dev->udev->bus->bus_name, dev->udev->devpath,
- status,
-
- // XXX the packet counts don't seem right
- // (1 at reset, not 0); maybe UNSPEC too
-
- (status & STATUS_PORT_A) ? 'A' : 'B',
- STATUS_PACKETS_THIS (status),
- (status & STATUS_CONN_THIS) ? " CON" : "",
- (status & STATUS_SUSPEND_THIS) ? " SUS" : "",
- (status & STATUS_MAILBOX_THIS) ? " MBOX" : "",
-
- STATUS_PACKETS_OTHER (status),
- (status & STATUS_CONN_OTHER) ? " CON" : "",
- (status & STATUS_SUSPEND_OTHER) ? " SUS" : "",
- (status & STATUS_MAILBOX_OTHER) ? " MBOX" : "",
-
- status & STATUS_UNSPEC_MASK
- );
-}
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * TTL register
- */
-
-#define TTL_THIS(ttl) (0x00ff & ttl)
-#define TTL_OTHER(ttl) (0x00ff & (ttl >> 8))
-#define MK_TTL(this,other) ((u16)(((other)<<8)|(0x00ff&(this))))
-
-static inline void nc_dump_ttl (struct usbnet *dev, u16 ttl)
-{
- if (netif_msg_link (dev))
- devdbg (dev, "net1080 %s-%s ttl 0x%x this = %d, other = %d",
- dev->udev->bus->bus_name, dev->udev->devpath,
- ttl, TTL_THIS (ttl), TTL_OTHER (ttl));
-}
-
-/*-------------------------------------------------------------------------*/
-
-static int net1080_reset (struct usbnet *dev)
-{
- u16 usbctl, status, ttl;
- u16 *vp = kmalloc (sizeof (u16), GFP_KERNEL);
- int retval;
-
- if (!vp)
- return -ENOMEM;
-
- // nc_dump_registers (dev);
-
- if ((retval = nc_register_read (dev, REG_STATUS, vp)) < 0) {
- dbg ("can't read %s-%s status: %d",
- dev->udev->bus->bus_name, dev->udev->devpath, retval);
- goto done;
- }
- status = *vp;
- nc_dump_status (dev, status);
-
- if ((retval = nc_register_read (dev, REG_USBCTL, vp)) < 0) {
- dbg ("can't read USBCTL, %d", retval);
- goto done;
- }
- usbctl = *vp;
- nc_dump_usbctl (dev, usbctl);
-
- nc_register_write (dev, REG_USBCTL,
- USBCTL_FLUSH_THIS | USBCTL_FLUSH_OTHER);
-
- if ((retval = nc_register_read (dev, REG_TTL, vp)) < 0) {
- dbg ("can't read TTL, %d", retval);
- goto done;
- }
- ttl = *vp;
- // nc_dump_ttl (dev, ttl);
-
- nc_register_write (dev, REG_TTL,
- MK_TTL (NC_READ_TTL_MS, TTL_OTHER (ttl)) );
- dbg ("%s: assigned TTL, %d ms", dev->net->name, NC_READ_TTL_MS);
-
- if (netif_msg_link (dev))
- devinfo (dev, "port %c, peer %sconnected",
- (status & STATUS_PORT_A) ? 'A' : 'B',
- (status & STATUS_CONN_OTHER) ? "" : "dis"
- );
- retval = 0;
-
-done:
- kfree (vp);
- return retval;
-}
-
-static int net1080_check_connect (struct usbnet *dev)
-{
- int retval;
- u16 status;
- u16 *vp = kmalloc (sizeof (u16), GFP_KERNEL);
-
- if (!vp)
- return -ENOMEM;
- retval = nc_register_read (dev, REG_STATUS, vp);
- status = *vp;
- kfree (vp);
- if (retval != 0) {
- dbg ("%s net1080_check_conn read - %d", dev->net->name, retval);
- return retval;
- }
- if ((status & STATUS_CONN_OTHER) != STATUS_CONN_OTHER)
- return -ENOLINK;
- return 0;
-}
-
-static void nc_flush_complete (struct urb *urb, struct pt_regs *regs)
-{
- kfree (urb->context);
- usb_free_urb(urb);
-}
-
-static void nc_ensure_sync (struct usbnet *dev)
-{
- dev->frame_errors++;
- if (dev->frame_errors > 5) {
- struct urb *urb;
- struct usb_ctrlrequest *req;
- int status;
-
- /* Send a flush */
- urb = usb_alloc_urb (0, SLAB_ATOMIC);
- if (!urb)
- return;
-
- req = kmalloc (sizeof *req, GFP_ATOMIC);
- if (!req) {
- usb_free_urb (urb);
- return;
- }
-
- req->bRequestType = USB_DIR_OUT
- | USB_TYPE_VENDOR
- | USB_RECIP_DEVICE;
- req->bRequest = REQUEST_REGISTER;
- req->wValue = cpu_to_le16 (USBCTL_FLUSH_THIS
- | USBCTL_FLUSH_OTHER);
- req->wIndex = cpu_to_le16 (REG_USBCTL);
- req->wLength = cpu_to_le16 (0);
-
- /* queue an async control request, we don't need
- * to do anything when it finishes except clean up.
- */
- usb_fill_control_urb (urb, dev->udev,
- usb_sndctrlpipe (dev->udev, 0),
- (unsigned char *) req,
- NULL, 0,
- nc_flush_complete, req);
- status = usb_submit_urb (urb, GFP_ATOMIC);
- if (status) {
- kfree (req);
- usb_free_urb (urb);
- return;
- }
-
- if (netif_msg_rx_err (dev))
- devdbg (dev, "flush net1080; too many framing errors");
- dev->frame_errors = 0;
- }
-}
-
-static int net1080_rx_fixup (struct usbnet *dev, struct sk_buff *skb)
-{
- struct nc_header *header;
- struct nc_trailer *trailer;
- u16 hdr_len, packet_len;
-
- if (!(skb->len & 0x01)
- || MIN_FRAMED > skb->len
- || skb->len > FRAMED_SIZE (dev->net->mtu)) {
- dev->stats.rx_frame_errors++;
- dbg ("rx framesize %d range %d..%d mtu %d", skb->len,
- (int)MIN_FRAMED, (int)FRAMED_SIZE (dev->net->mtu),
- dev->net->mtu);
- nc_ensure_sync (dev);
- return 0;
- }
-
- header = (struct nc_header *) skb->data;
- hdr_len = le16_to_cpup (&header->hdr_len);
- packet_len = le16_to_cpup (&header->packet_len);
- if (FRAMED_SIZE (packet_len) > MAX_PACKET) {
- dev->stats.rx_frame_errors++;
- dbg ("packet too big, %d", packet_len);
- nc_ensure_sync (dev);
- return 0;
- } else if (hdr_len < MIN_HEADER) {
- dev->stats.rx_frame_errors++;
- dbg ("header too short, %d", hdr_len);
- nc_ensure_sync (dev);
- return 0;
- } else if (hdr_len > MIN_HEADER) {
- // out of band data for us?
- dbg ("header OOB, %d bytes", hdr_len - MIN_HEADER);
- nc_ensure_sync (dev);
- // switch (vendor/product ids) { ... }
- }
- skb_pull (skb, hdr_len);
-
- trailer = (struct nc_trailer *)
- (skb->data + skb->len - sizeof *trailer);
- skb_trim (skb, skb->len - sizeof *trailer);
-
- if ((packet_len & 0x01) == 0) {
- if (skb->data [packet_len] != PAD_BYTE) {
- dev->stats.rx_frame_errors++;
- dbg ("bad pad");
- return 0;
- }
- skb_trim (skb, skb->len - 1);
- }
- if (skb->len != packet_len) {
- dev->stats.rx_frame_errors++;
- dbg ("bad packet len %d (expected %d)",
- skb->len, packet_len);
- nc_ensure_sync (dev);
- return 0;
- }
- if (header->packet_id != get_unaligned (&trailer->packet_id)) {
- dev->stats.rx_fifo_errors++;
- dbg ("(2+ dropped) rx packet_id mismatch 0x%x 0x%x",
- le16_to_cpu (header->packet_id),
- le16_to_cpu (trailer->packet_id));
- return 0;
- }
-#if 0
- devdbg (dev, "frame <rx h %d p %d id %d", header->hdr_len,
- header->packet_len, header->packet_id);
-#endif
- dev->frame_errors = 0;
- return 1;
-}
-
-static struct sk_buff *
-net1080_tx_fixup (struct usbnet *dev, struct sk_buff *skb, int flags)
-{
- int padlen;
- struct sk_buff *skb2;
-
- padlen = ((skb->len + sizeof (struct nc_header)
- + sizeof (struct nc_trailer)) & 0x01) ? 0 : 1;
- if (!skb_cloned (skb)) {
- int headroom = skb_headroom (skb);
- int tailroom = skb_tailroom (skb);
-
- if ((padlen + sizeof (struct nc_trailer)) <= tailroom
- && sizeof (struct nc_header) <= headroom)
- /* There's enough head and tail room */
- return skb;
-
- if ((sizeof (struct nc_header) + padlen
- + sizeof (struct nc_trailer)) <
- (headroom + tailroom)) {
- /* There's enough total room, so just readjust */
- skb->data = memmove (skb->head
- + sizeof (struct nc_header),
- skb->data, skb->len);
- skb->tail = skb->data + skb->len;
- return skb;
- }
- }
-
- /* Create a new skb to use with the correct size */
- skb2 = skb_copy_expand (skb,
- sizeof (struct nc_header),
- sizeof (struct nc_trailer) + padlen,
- flags);
- dev_kfree_skb_any (skb);
- return skb2;
-}
-
-static const struct driver_info net1080_info = {
- .description = "NetChip TurboCONNECT",
- .flags = FLAG_FRAMING_NC,
- .reset = net1080_reset,
- .check_connect =net1080_check_connect,
- .rx_fixup = net1080_rx_fixup,
- .tx_fixup = net1080_tx_fixup,
-};
-
-#endif /* CONFIG_USB_NET1080 */
-
-
-\f
-#ifdef CONFIG_USB_PL2301
-#define HAVE_HARDWARE
-
-/*-------------------------------------------------------------------------
- *
- * Prolific PL-2301/PL-2302 driver ... http://www.prolifictech.com
- *
- * The protocol and handshaking used here should be bug-compatible
- * with the Linux 2.2 "plusb" driver, by Deti Fliegl.
- *
- *-------------------------------------------------------------------------*/
-
-/*
- * Bits 0-4 can be used for software handshaking; they're set from
- * one end, cleared from the other, "read" with the interrupt byte.
- */
-#define PL_S_EN (1<<7) /* (feature only) suspend enable */
-/* reserved bit -- rx ready (6) ? */
-#define PL_TX_READY (1<<5) /* (interrupt only) transmit ready */
-#define PL_RESET_OUT (1<<4) /* reset output pipe */
-#define PL_RESET_IN (1<<3) /* reset input pipe */
-#define PL_TX_C (1<<2) /* transmission complete */
-#define PL_TX_REQ (1<<1) /* transmission received */
-#define PL_PEER_E (1<<0) /* peer exists */
-
-static inline int
-pl_vendor_req (struct usbnet *dev, u8 req, u8 val, u8 index)
-{
- return usb_control_msg (dev->udev,
- usb_rcvctrlpipe (dev->udev, 0),
- req,
- USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
- val, index,
- NULL, 0,
- CONTROL_TIMEOUT_MS);
-}
-
-static inline int
-pl_clear_QuickLink_features (struct usbnet *dev, int val)
-{
- return pl_vendor_req (dev, 1, (u8) val, 0);
-}
-
-static inline int
-pl_set_QuickLink_features (struct usbnet *dev, int val)
-{
- return pl_vendor_req (dev, 3, (u8) val, 0);
-}
-
-/*-------------------------------------------------------------------------*/
-
-static int pl_reset (struct usbnet *dev)
-{
- /* some units seem to need this reset, others reject it utterly.
- * FIXME be more like "naplink" or windows drivers.
- */
- (void) pl_set_QuickLink_features (dev,
- PL_S_EN|PL_RESET_OUT|PL_RESET_IN|PL_PEER_E);
- return 0;
-}
-
-static const struct driver_info prolific_info = {
- .description = "Prolific PL-2301/PL-2302",
- .flags = FLAG_NO_SETINT,
- /* some PL-2302 versions seem to fail usb_set_interface() */
- .reset = pl_reset,
-};
-
-#endif /* CONFIG_USB_PL2301 */
-
-\f
-#ifdef CONFIG_USB_KC2190
-#define HAVE_HARDWARE
-static const struct driver_info kc2190_info = {
- .description = "KC Technology KC-190",
-};
-#endif /* CONFIG_USB_KC2190 */
-
-\f
-#ifdef CONFIG_USB_ARMLINUX
-#define HAVE_HARDWARE
-
-/*-------------------------------------------------------------------------
- *
- * Intel's SA-1100 chip integrates basic USB support, and is used
- * in PDAs like some iPaqs, the Yopy, some Zaurus models, and more.
- * When they run Linux, arch/arm/mach-sa1100/usb-eth.c may be used to
- * network using minimal USB framing data.
- *
- * This describes the driver currently in standard ARM Linux kernels.
- * The Zaurus uses a different driver (see later).
- *
- * PXA25x and PXA210 use XScale cores (ARM v5TE) with better USB support
- * and different USB endpoint numbering than the SA1100 devices. The
- * mach-pxa/usb-eth.c driver re-uses the device ids from mach-sa1100
- * so we rely on the endpoint descriptors.
- *
- *-------------------------------------------------------------------------*/
-
-static const struct driver_info linuxdev_info = {
- .description = "Linux Device",
- .check_connect = always_connected,
-};
-
-static const struct driver_info yopy_info = {
- .description = "Yopy",
- .check_connect = always_connected,
-};
-
-static const struct driver_info blob_info = {
- .description = "Boot Loader OBject",
- .check_connect = always_connected,
-};
-
-#endif /* CONFIG_USB_ARMLINUX */
-
-\f
-#ifdef CONFIG_USB_ZAURUS
-#define HAVE_HARDWARE
-
-#include <linux/crc32.h>
-
-/*-------------------------------------------------------------------------
- *
- * Zaurus is also a SA-1110 based PDA, but one using a different driver
- * (and framing) for its USB slave/gadget controller than the case above.
- *
- * For the current version of that driver, the main way that framing is
- * nonstandard (also from perspective of the CDC ethernet model!) is a
- * crc32, added to help detect when some sa1100 usb-to-memory DMA errata
- * haven't been fully worked around. Also, all Zaurii use the same
- * default Ethernet address.
- *
- * PXA based models use the same framing, and also can't implement
- * set_interface properly.
- *
- * All known Zaurii lie about their standards conformance. Most lie by
- * saying they support CDC Ethernet. Some lie and say they support CDC
- * MDLM (as if for access to cell phone modems). Someone, please beat
- * on Sharp (and other such vendors) for a while with a cluestick.
- *
- *-------------------------------------------------------------------------*/
-
-static struct sk_buff *
-zaurus_tx_fixup (struct usbnet *dev, struct sk_buff *skb, int flags)
-{
- int padlen;
- struct sk_buff *skb2;
+// between wakeups
+#define UNLINK_TIMEOUT_MS 3
- padlen = 2;
- if (!skb_cloned (skb)) {
- int tailroom = skb_tailroom (skb);
- if ((padlen + 4) <= tailroom)
- goto done;
- }
- skb2 = skb_copy_expand (skb, 0, 4 + padlen, flags);
- dev_kfree_skb_any (skb);
- skb = skb2;
- if (skb) {
- u32 fcs;
-done:
- fcs = crc32_le (~0, skb->data, skb->len);
- fcs = ~fcs;
+/*-------------------------------------------------------------------------*/
- *skb_put (skb, 1) = fcs & 0xff;
- *skb_put (skb, 1) = (fcs>> 8) & 0xff;
- *skb_put (skb, 1) = (fcs>>16) & 0xff;
- *skb_put (skb, 1) = (fcs>>24) & 0xff;
- }
- return skb;
-}
+// randomly generated ethernet address
+static u8 node_id [ETH_ALEN];
-static const struct driver_info zaurus_sl5x00_info = {
- .description = "Sharp Zaurus SL-5x00",
- .flags = FLAG_FRAMING_Z,
- .check_connect = always_connected,
- .bind = generic_cdc_bind,
- .unbind = cdc_unbind,
- .tx_fixup = zaurus_tx_fixup,
-};
-#define ZAURUS_STRONGARM_INFO ((unsigned long)&zaurus_sl5x00_info)
-
-static const struct driver_info zaurus_pxa_info = {
- .description = "Sharp Zaurus, PXA-2xx based",
- .flags = FLAG_FRAMING_Z,
- .check_connect = always_connected,
- .bind = generic_cdc_bind,
- .unbind = cdc_unbind,
- .tx_fixup = zaurus_tx_fixup,
-};
-#define ZAURUS_PXA_INFO ((unsigned long)&zaurus_pxa_info)
-
-static const struct driver_info olympus_mxl_info = {
- .description = "Olympus R1000",
- .flags = FLAG_FRAMING_Z,
- .check_connect = always_connected,
- .bind = generic_cdc_bind,
- .unbind = cdc_unbind,
- .tx_fixup = zaurus_tx_fixup,
-};
-#define OLYMPUS_MXL_INFO ((unsigned long)&olympus_mxl_info)
+static const char driver_name [] = "usbnet";
+/* use ethtool to change the level for any given device */
+static int msg_level = -1;
+module_param (msg_level, int, 0);
+MODULE_PARM_DESC (msg_level, "Override default message level");
-/* Some more recent products using Lineo/Belcarra code will wrongly claim
- * CDC MDLM conformance. They aren't conformant: data endpoints live
- * in the control interface, there's no data interface, and it's not used
- * to talk to a cell phone radio. But at least we can detect these two
- * pseudo-classes, rather than growing this product list with entries for
- * each new nonconformant product (sigh).
- */
-static const u8 safe_guid[16] = {
- 0x5d, 0x34, 0xcf, 0x66, 0x11, 0x18, 0x11, 0xd6,
- 0xa2, 0x1a, 0x00, 0x01, 0x02, 0xca, 0x9a, 0x7f,
-};
-static const u8 blan_guid[16] = {
- 0x74, 0xf0, 0x3d, 0xbd, 0x1e, 0xc1, 0x44, 0x70,
- 0xa3, 0x67, 0x71, 0x34, 0xc9, 0xf5, 0x54, 0x37,
-};
+/*-------------------------------------------------------------------------*/
-static int blan_mdlm_bind (struct usbnet *dev, struct usb_interface *intf)
+/* handles CDC Ethernet and many other network "bulk data" interfaces */
+int usbnet_get_endpoints(struct usbnet *dev, struct usb_interface *intf)
{
- u8 *buf = intf->cur_altsetting->extra;
- int len = intf->cur_altsetting->extralen;
- struct usb_cdc_mdlm_desc *desc = NULL;
- struct usb_cdc_mdlm_detail_desc *detail = NULL;
+ int tmp;
+ struct usb_host_interface *alt = NULL;
+ struct usb_host_endpoint *in = NULL, *out = NULL;
+ struct usb_host_endpoint *status = NULL;
+
+ for (tmp = 0; tmp < intf->num_altsetting; tmp++) {
+ unsigned ep;
- while (len > 3) {
- if (buf [1] != USB_DT_CS_INTERFACE)
- goto next_desc;
+ in = out = status = NULL;
+ alt = intf->altsetting + tmp;
- /* use bDescriptorSubType, and just verify that we get a
- * "BLAN" (or "SAFE") descriptor.
+ /* take the first altsetting with in-bulk + out-bulk;
+ * remember any status endpoint, just in case;
+ * ignore other endpoints and altsetttings.
*/
- switch (buf [2]) {
- case USB_CDC_MDLM_TYPE:
- if (desc) {
- dev_dbg (&intf->dev, "extra MDLM\n");
- goto bad_desc;
- }
- desc = (void *) buf;
- if (desc->bLength != sizeof *desc) {
- dev_dbg (&intf->dev, "MDLM len %u\n",
- desc->bLength);
- goto bad_desc;
- }
- /* expect bcdVersion 1.0, ignore */
- if (memcmp(&desc->bGUID, blan_guid, 16)
- && memcmp(&desc->bGUID, safe_guid, 16) ) {
- /* hey, this one might _really_ be MDLM! */
- dev_dbg (&intf->dev, "MDLM guid\n");
- goto bad_desc;
- }
- break;
- case USB_CDC_MDLM_DETAIL_TYPE:
- if (detail) {
- dev_dbg (&intf->dev, "extra MDLM detail\n");
- goto bad_desc;
- }
- detail = (void *) buf;
- switch (detail->bGuidDescriptorType) {
- case 0: /* "SAFE" */
- if (detail->bLength != (sizeof *detail + 2))
- goto bad_detail;
- break;
- case 1: /* "BLAN" */
- if (detail->bLength != (sizeof *detail + 3))
- goto bad_detail;
+ for (ep = 0; ep < alt->desc.bNumEndpoints; ep++) {
+ struct usb_host_endpoint *e;
+ int intr = 0;
+
+ e = alt->endpoint + ep;
+ switch (e->desc.bmAttributes) {
+ case USB_ENDPOINT_XFER_INT:
+ if (!(e->desc.bEndpointAddress & USB_DIR_IN))
+ continue;
+ intr = 1;
+ /* FALLTHROUGH */
+ case USB_ENDPOINT_XFER_BULK:
break;
default:
- goto bad_detail;
+ continue;
}
-
- /* assuming we either noticed BLAN already, or will
- * find it soon, there are some data bytes here:
- * - bmNetworkCapabilities (unused)
- * - bmDataCapabilities (bits, see below)
- * - bPad (ignored, for PADAFTER -- BLAN-only)
- * bits are:
- * - 0x01 -- Zaurus framing (add CRC)
- * - 0x02 -- PADBEFORE (CRC includes some padding)
- * - 0x04 -- PADAFTER (some padding after CRC)
- * - 0x08 -- "fermat" packet mangling (for hw bugs)
- * the PADBEFORE appears not to matter; we interop
- * with devices that use it and those that don't.
- */
- if ((detail->bDetailData[1] & ~02) != 0x01) {
- /* bmDataCapabilites == 0 would be fine too,
- * but framing is minidriver-coupled for now.
- */
-bad_detail:
- dev_dbg (&intf->dev,
- "bad MDLM detail, %d %d %d\n",
- detail->bLength,
- detail->bDetailData[0],
- detail->bDetailData[2]);
- goto bad_desc;
+ if (e->desc.bEndpointAddress & USB_DIR_IN) {
+ if (!intr && !in)
+ in = e;
+ else if (intr && !status)
+ status = e;
+ } else {
+ if (!out)
+ out = e;
}
- break;
}
-next_desc:
- len -= buf [0]; /* bLength */
- buf += buf [0];
+ if (in && out)
+ break;
}
+ if (!alt || !in || !out)
+ return -EINVAL;
- if (!desc || !detail) {
- dev_dbg (&intf->dev, "missing cdc mdlm %s%sdescriptor\n",
- desc ? "" : "func ",
- detail ? "" : "detail ");
- goto bad_desc;
+ if (alt->desc.bAlternateSetting != 0
+ || !(dev->driver_info->flags & FLAG_NO_SETINT)) {
+ tmp = usb_set_interface (dev->udev, alt->desc.bInterfaceNumber,
+ alt->desc.bAlternateSetting);
+ if (tmp < 0)
+ return tmp;
}
+
+ dev->in = usb_rcvbulkpipe (dev->udev,
+ in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+ dev->out = usb_sndbulkpipe (dev->udev,
+ out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+ dev->status = status;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(usbnet_get_endpoints);
- /* There's probably a CDC Ethernet descriptor there, but we can't
- * rely on the Ethernet address it provides since not all vendors
- * bother to make it unique. Likewise there's no point in tracking
- * of the CDC event notifications.
- */
- return get_endpoints (dev, intf);
+static void intr_complete (struct urb *urb, struct pt_regs *regs);
-bad_desc:
- dev_info (&dev->udev->dev, "unsupported MDLM descriptors\n");
- return -ENODEV;
-}
+static int init_status (struct usbnet *dev, struct usb_interface *intf)
+{
+ char *buf = NULL;
+ unsigned pipe = 0;
+ unsigned maxp;
+ unsigned period;
-static const struct driver_info bogus_mdlm_info = {
- .description = "pseudo-MDLM (BLAN) device",
- .flags = FLAG_FRAMING_Z,
- .check_connect = always_connected,
- .tx_fixup = zaurus_tx_fixup,
- .bind = blan_mdlm_bind,
-};
+ if (!dev->driver_info->status)
+ return 0;
+
+ pipe = usb_rcvintpipe (dev->udev,
+ dev->status->desc.bEndpointAddress
+ & USB_ENDPOINT_NUMBER_MASK);
+ maxp = usb_maxpacket (dev->udev, pipe, 0);
+
+ /* avoid 1 msec chatter: min 8 msec poll rate */
+ period = max ((int) dev->status->desc.bInterval,
+ (dev->udev->speed == USB_SPEED_HIGH) ? 7 : 3);
+
+ buf = kmalloc (maxp, SLAB_KERNEL);
+ if (buf) {
+ dev->interrupt = usb_alloc_urb (0, SLAB_KERNEL);
+ if (!dev->interrupt) {
+ kfree (buf);
+ return -ENOMEM;
+ } else {
+ usb_fill_int_urb(dev->interrupt, dev->udev, pipe,
+ buf, maxp, intr_complete, dev, period);
+ dev_dbg(&intf->dev,
+ "status ep%din, %d bytes period %d\n",
+ usb_pipeendpoint(pipe), maxp, period);
+ }
+ }
+ return 0;
+}
-#else
+/* Passes this packet up the stack, updating its accounting.
+ * Some link protocols batch packets, so their rx_fixup paths
+ * can return clones as well as just modify the original skb.
+ */
+void usbnet_skb_return (struct usbnet *dev, struct sk_buff *skb)
+{
+ int status;
-/* blacklist all those devices */
-#define ZAURUS_STRONGARM_INFO 0
-#define ZAURUS_PXA_INFO 0
-#define OLYMPUS_MXL_INFO 0
+ skb->dev = dev->net;
+ skb->protocol = eth_type_trans (skb, dev->net);
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += skb->len;
-#endif
+ if (netif_msg_rx_status (dev))
+ devdbg (dev, "< rx, len %zu, type 0x%x",
+ skb->len + sizeof (struct ethhdr), skb->protocol);
+ memset (skb->cb, 0, sizeof (struct skb_data));
+ status = netif_rx (skb);
+ if (status != NET_RX_SUCCESS && netif_msg_rx_err (dev))
+ devdbg (dev, "netif_rx status %d", status);
+}
+EXPORT_SYMBOL_GPL(usbnet_skb_return);
\f
/*-------------------------------------------------------------------------
static int usbnet_change_mtu (struct net_device *net, int new_mtu)
{
struct usbnet *dev = netdev_priv(net);
+ int ll_mtu = new_mtu + net->hard_header_len;
- if (new_mtu <= MIN_PACKET || new_mtu > MAX_PACKET)
+ if (new_mtu <= 0 || ll_mtu > dev->hard_mtu)
return -EINVAL;
-#ifdef CONFIG_USB_NET1080
- if (((dev->driver_info->flags) & FLAG_FRAMING_NC)) {
- if (FRAMED_SIZE (new_mtu) > MAX_PACKET)
- return -EINVAL;
- }
-#endif
-#ifdef CONFIG_USB_GENESYS
- if (((dev->driver_info->flags) & FLAG_FRAMING_GL)
- && new_mtu > GL_MAX_PACKET_LEN)
- return -EINVAL;
-#endif
// no second zero-length packet read wanted after mtu-sized packets
- if (((new_mtu + sizeof (struct ethhdr)) % dev->maxpacket) == 0)
+ if ((ll_mtu % dev->maxpacket) == 0)
return -EDOM;
net->mtu = new_mtu;
return 0;
* completion callbacks. 2.5 should have fixed those bugs...
*/
-static void defer_bh (struct usbnet *dev, struct sk_buff *skb)
+static void defer_bh(struct usbnet *dev, struct sk_buff *skb, struct sk_buff_head *list)
{
- struct sk_buff_head *list = skb->list;
unsigned long flags;
- spin_lock_irqsave (&list->lock, flags);
- __skb_unlink (skb, list);
- spin_unlock (&list->lock);
- spin_lock (&dev->done.lock);
- __skb_queue_tail (&dev->done, skb);
+ spin_lock_irqsave(&list->lock, flags);
+ __skb_unlink(skb, list);
+ spin_unlock(&list->lock);
+ spin_lock(&dev->done.lock);
+ __skb_queue_tail(&dev->done, skb);
if (dev->done.qlen == 1)
- tasklet_schedule (&dev->bh);
- spin_unlock_irqrestore (&dev->done.lock, flags);
+ tasklet_schedule(&dev->bh);
+ spin_unlock_irqrestore(&dev->done.lock, flags);
}
/* some work can't be done in tasklets, so we use keventd
* NOTE: annoying asymmetry: if it's active, schedule_work() fails,
* but tasklet_schedule() doesn't. hope the failure is rare.
*/
-static void defer_kevent (struct usbnet *dev, int work)
+void usbnet_defer_kevent (struct usbnet *dev, int work)
{
set_bit (work, &dev->flags);
if (!schedule_work (&dev->kevent))
else
devdbg (dev, "kevent %d scheduled", work);
}
+EXPORT_SYMBOL_GPL(usbnet_defer_kevent);
/*-------------------------------------------------------------------------*/
static void rx_complete (struct urb *urb, struct pt_regs *regs);
-static void rx_submit (struct usbnet *dev, struct urb *urb, int flags)
+static void rx_submit (struct usbnet *dev, struct urb *urb, gfp_t flags)
{
struct sk_buff *skb;
struct skb_data *entry;
int retval = 0;
unsigned long lockflags;
- size_t size;
-
-#ifdef CONFIG_USB_NET1080
- if (dev->driver_info->flags & FLAG_FRAMING_NC)
- size = FRAMED_SIZE (dev->net->mtu);
- else
-#endif
-#ifdef CONFIG_USB_GENESYS
- if (dev->driver_info->flags & FLAG_FRAMING_GL)
- size = GL_RCV_BUF_SIZE;
- else
-#endif
-#ifdef CONFIG_USB_ZAURUS
- if (dev->driver_info->flags & FLAG_FRAMING_Z)
- size = 6 + (sizeof (struct ethhdr) + dev->net->mtu);
- else
-#endif
-#ifdef CONFIG_USB_RNDIS
- if (dev->driver_info->flags & FLAG_FRAMING_RN)
- size = RNDIS_MAX_TRANSFER;
- else
-#endif
-#ifdef CONFIG_USB_AX8817X
- if (dev->driver_info->flags & FLAG_FRAMING_AX)
- size = 2048;
- else
-#endif
- size = (sizeof (struct ethhdr) + dev->net->mtu);
+ size_t size = dev->rx_urb_size;
if ((skb = alloc_skb (size + NET_IP_ALIGN, flags)) == NULL) {
if (netif_msg_rx_err (dev))
devdbg (dev, "no rx skb");
- defer_kevent (dev, EVENT_RX_MEMORY);
+ usbnet_defer_kevent (dev, EVENT_RX_MEMORY);
usb_free_urb (urb);
return;
}
usb_fill_bulk_urb (urb, dev->udev, dev->in,
skb->data, size, rx_complete, skb);
- urb->transfer_flags |= URB_ASYNC_UNLINK;
spin_lock_irqsave (&dev->rxq.lock, lockflags);
&& !test_bit (EVENT_RX_HALT, &dev->flags)) {
switch (retval = usb_submit_urb (urb, GFP_ATOMIC)){
case -EPIPE:
- defer_kevent (dev, EVENT_RX_HALT);
+ usbnet_defer_kevent (dev, EVENT_RX_HALT);
break;
case -ENOMEM:
- defer_kevent (dev, EVENT_RX_MEMORY);
+ usbnet_defer_kevent (dev, EVENT_RX_MEMORY);
break;
case -ENODEV:
if (netif_msg_ifdown (dev))
// else network stack removes extra byte if we forced a short packet
if (skb->len)
- skb_return (dev, skb);
+ usbnet_skb_return (dev, skb);
else {
if (netif_msg_rx_err (dev))
devdbg (dev, "drop");
switch (urb_status) {
// success
case 0:
- if (MIN_PACKET > skb->len || skb->len > MAX_PACKET) {
+ if (skb->len < dev->net->hard_header_len) {
entry->state = rx_cleanup;
dev->stats.rx_errors++;
dev->stats.rx_length_errors++;
// storm, recovering as needed.
case -EPIPE:
dev->stats.rx_errors++;
- defer_kevent (dev, EVENT_RX_HALT);
+ usbnet_defer_kevent (dev, EVENT_RX_HALT);
// FALLTHROUGH
// software-driven interface shutdown
break;
}
- defer_bh (dev, skb);
+ defer_bh(dev, skb, &dev->rxq);
if (urb) {
if (netif_running (dev->net)
temp = unlink_urbs (dev, &dev->txq) + unlink_urbs (dev, &dev->rxq);
// maybe wait for deletions to finish.
- while (skb_queue_len (&dev->rxq)
- && skb_queue_len (&dev->txq)
- && skb_queue_len (&dev->done)) {
+ while (!skb_queue_empty(&dev->rxq) &&
+ !skb_queue_empty(&dev->txq) &&
+ !skb_queue_empty(&dev->done)) {
msleep(UNLINK_TIMEOUT_MS);
if (netif_msg_ifdown (dev))
devdbg (dev, "waited for %d urb completions", temp);
/*-------------------------------------------------------------------------*/
-static void usbnet_get_drvinfo (struct net_device *net, struct ethtool_drvinfo *info)
+/* ethtool methods; minidrivers may need to add some more, but
+ * they'll probably want to use this base set.
+ */
+
+void usbnet_get_drvinfo (struct net_device *net, struct ethtool_drvinfo *info)
{
struct usbnet *dev = netdev_priv(net);
+ /* REVISIT don't always return "usbnet" */
strncpy (info->driver, driver_name, sizeof info->driver);
strncpy (info->version, DRIVER_VERSION, sizeof info->version);
strncpy (info->fw_version, dev->driver_info->description,
sizeof info->fw_version);
usb_make_path (dev->udev, info->bus_info, sizeof info->bus_info);
}
+EXPORT_SYMBOL_GPL(usbnet_get_drvinfo);
static u32 usbnet_get_link (struct net_device *net)
{
struct usbnet *dev = netdev_priv(net);
- /* If a check_connect is defined, return it's results */
+ /* If a check_connect is defined, return its result */
if (dev->driver_info->check_connect)
return dev->driver_info->check_connect (dev) == 0;
- /* Otherwise, we're up to avoid breaking scripts */
+ /* Otherwise, say we're up (to avoid breaking scripts) */
return 1;
}
-static u32 usbnet_get_msglevel (struct net_device *net)
+u32 usbnet_get_msglevel (struct net_device *net)
{
struct usbnet *dev = netdev_priv(net);
return dev->msg_enable;
}
+EXPORT_SYMBOL_GPL(usbnet_get_msglevel);
-static void usbnet_set_msglevel (struct net_device *net, u32 level)
+void usbnet_set_msglevel (struct net_device *net, u32 level)
{
struct usbnet *dev = netdev_priv(net);
dev->msg_enable = level;
}
+EXPORT_SYMBOL_GPL(usbnet_set_msglevel);
-static int usbnet_ioctl (struct net_device *net, struct ifreq *rq, int cmd)
-{
-#ifdef NEED_MII
- {
- struct usbnet *dev = netdev_priv(net);
-
- if (dev->mii.mdio_read != NULL && dev->mii.mdio_write != NULL)
- return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
- }
-#endif
- return -EOPNOTSUPP;
-}
+/* drivers may override default ethtool_ops in their bind() routine */
+static struct ethtool_ops usbnet_ethtool_ops = {
+ .get_drvinfo = usbnet_get_drvinfo,
+ .get_link = usbnet_get_link,
+ .get_msglevel = usbnet_get_msglevel,
+ .set_msglevel = usbnet_set_msglevel,
+};
/*-------------------------------------------------------------------------*/
if (test_bit (EVENT_TX_HALT, &dev->flags)) {
unlink_urbs (dev, &dev->txq);
status = usb_clear_halt (dev->udev, dev->out);
- if (status < 0 && status != -EPIPE) {
+ if (status < 0
+ && status != -EPIPE
+ && status != -ESHUTDOWN) {
if (netif_msg_tx_err (dev))
deverr (dev, "can't clear tx halt, status %d",
status);
} else {
clear_bit (EVENT_TX_HALT, &dev->flags);
- netif_wake_queue (dev->net);
+ if (status != -ESHUTDOWN)
+ netif_wake_queue (dev->net);
}
}
if (test_bit (EVENT_RX_HALT, &dev->flags)) {
unlink_urbs (dev, &dev->rxq);
status = usb_clear_halt (dev->udev, dev->in);
- if (status < 0 && status != -EPIPE) {
+ if (status < 0
+ && status != -EPIPE
+ && status != -ESHUTDOWN) {
if (netif_msg_rx_err (dev))
deverr (dev, "can't clear rx halt, status %d",
status);
switch (urb->status) {
case -EPIPE:
- defer_kevent (dev, EVENT_TX_HALT);
+ usbnet_defer_kevent (dev, EVENT_TX_HALT);
break;
/* software-driven interface shutdown */
urb->dev = NULL;
entry->state = tx_done;
- defer_bh (dev, skb);
+ defer_bh(dev, skb, &dev->txq);
}
/*-------------------------------------------------------------------------*/
struct skb_data *entry;
struct driver_info *info = dev->driver_info;
unsigned long flags;
-#ifdef CONFIG_USB_NET1080
- struct nc_header *header = NULL;
- struct nc_trailer *trailer = NULL;
-#endif /* CONFIG_USB_NET1080 */
// some devices want funky USB-level framing, for
// win32 driver (usually) and/or hardware quirks
entry->state = tx_start;
entry->length = length;
- // FIXME: reorganize a bit, so that fixup() fills out NetChip
- // framing too. (Packet ID update needs the spinlock...)
- // [ BETTER: we already own net->xmit_lock, that's enough ]
-
-#ifdef CONFIG_USB_NET1080
- if (info->flags & FLAG_FRAMING_NC) {
- header = (struct nc_header *) skb_push (skb, sizeof *header);
- header->hdr_len = cpu_to_le16 (sizeof (*header));
- header->packet_len = cpu_to_le16 (length);
- if (!((skb->len + sizeof *trailer) & 0x01))
- *skb_put (skb, 1) = PAD_BYTE;
- trailer = (struct nc_trailer *) skb_put (skb, sizeof *trailer);
- }
-#endif /* CONFIG_USB_NET1080 */
-
usb_fill_bulk_urb (urb, dev->udev, dev->out,
skb->data, skb->len, tx_complete, skb);
- urb->transfer_flags |= URB_ASYNC_UNLINK;
/* don't assume the hardware handles USB_ZERO_PACKET
* NOTE: strictly conforming cdc-ether devices should expect
spin_lock_irqsave (&dev->txq.lock, flags);
-#ifdef CONFIG_USB_NET1080
- if (info->flags & FLAG_FRAMING_NC) {
- header->packet_id = cpu_to_le16 ((u16)dev->dev_packet_id++);
- put_unaligned (header->packet_id, &trailer->packet_id);
-#if 0
- devdbg (dev, "frame >tx h %d p %d id %d",
- header->hdr_len, header->packet_len,
- header->packet_id);
-#endif
- }
-#endif /* CONFIG_USB_NET1080 */
-
switch ((retval = usb_submit_urb (urb, GFP_ATOMIC))) {
case -EPIPE:
netif_stop_queue (net);
- defer_kevent (dev, EVENT_TX_HALT);
+ usbnet_defer_kevent (dev, EVENT_TX_HALT);
break;
default:
if (netif_msg_tx_err (dev))
// precondition: never called in_interrupt
-static void usbnet_disconnect (struct usb_interface *intf)
+void usbnet_disconnect (struct usb_interface *intf)
{
struct usbnet *dev;
struct usb_device *xdev;
xdev = interface_to_usbdev (intf);
if (netif_msg_probe (dev))
- devinfo (dev, "unregister usbnet usb-%s-%s, %s",
+ devinfo (dev, "unregister '%s' usb-%s-%s, %s",
+ intf->dev.driver->name,
xdev->bus->bus_name, xdev->devpath,
dev->driver_info->description);
free_netdev(net);
usb_put_dev (xdev);
}
+EXPORT_SYMBOL_GPL(usbnet_disconnect);
/*-------------------------------------------------------------------------*/
-static struct ethtool_ops usbnet_ethtool_ops;
-
// precondition: never called in_interrupt
-static int
+int
usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
{
struct usbnet *dev;
strcpy (net->name, "usb%d");
memcpy (net->dev_addr, node_id, sizeof node_id);
+ /* rx and tx sides can use different message sizes;
+ * bind() should set rx_urb_size in that case.
+ */
+ dev->hard_mtu = net->mtu + net->hard_header_len;
#if 0
// dma_supported() is deeply broken on almost all architectures
// possible with some EHCI controllers
net->stop = usbnet_stop;
net->watchdog_timeo = TX_TIMEOUT_JIFFIES;
net->tx_timeout = usbnet_tx_timeout;
- net->do_ioctl = usbnet_ioctl;
net->ethtool_ops = &usbnet_ethtool_ops;
// allow device-specific bind/init procedures
if ((dev->driver_info->flags & FLAG_ETHER) != 0
&& (net->dev_addr [0] & 0x02) == 0)
strcpy (net->name, "eth%d");
- } else if (!info->in || info->out)
- status = get_endpoints (dev, udev);
+
+ /* maybe the remote can't receive an Ethernet MTU */
+ if (net->mtu > (dev->hard_mtu - net->hard_header_len))
+ net->mtu = dev->hard_mtu - net->hard_header_len;
+ } else if (!info->in || !info->out)
+ status = usbnet_get_endpoints (dev, udev);
else {
dev->in = usb_rcvbulkpipe (xdev, info->in);
dev->out = usb_sndbulkpipe (xdev, info->out);
status = 0;
}
-
if (status == 0 && dev->status)
status = init_status (dev, udev);
if (status < 0)
goto out1;
+ if (!dev->rx_urb_size)
+ dev->rx_urb_size = dev->hard_mtu;
dev->maxpacket = usb_maxpacket (dev->udev, dev->out, 1);
SET_NETDEV_DEV(net, &udev->dev);
if (status)
goto out3;
if (netif_msg_probe (dev))
- devinfo (dev, "register usbnet at usb-%s-%s, %s, "
+ devinfo (dev, "register '%s' at usb-%s-%s, %s, "
"%02x:%02x:%02x:%02x:%02x:%02x",
+ udev->dev.driver->name,
xdev->bus->bus_name, xdev->devpath,
dev->driver_info->description,
net->dev_addr [0], net->dev_addr [1],
usb_put_dev(xdev);
return status;
}
+EXPORT_SYMBOL_GPL(usbnet_probe);
/*-------------------------------------------------------------------------*/
-#ifdef CONFIG_PM
+/* FIXME these suspend/resume methods assume non-CDC style
+ * devices, with only one interface.
+ */
-static int usbnet_suspend (struct usb_interface *intf, pm_message_t message)
+int usbnet_suspend (struct usb_interface *intf, pm_message_t message)
{
struct usbnet *dev = usb_get_intfdata(intf);
netif_device_detach (dev->net);
(void) unlink_urbs (dev, &dev->rxq);
(void) unlink_urbs (dev, &dev->txq);
- intf->dev.power.power_state = PMSG_SUSPEND;
return 0;
}
+EXPORT_SYMBOL_GPL(usbnet_suspend);
-static int usbnet_resume (struct usb_interface *intf)
+int usbnet_resume (struct usb_interface *intf)
{
struct usbnet *dev = usb_get_intfdata(intf);
- intf->dev.power.power_state = PMSG_ON;
netif_device_attach (dev->net);
tasklet_schedule (&dev->bh);
return 0;
}
+EXPORT_SYMBOL_GPL(usbnet_resume);
-#else /* !CONFIG_PM */
-
-#define usbnet_suspend NULL
-#define usbnet_resume NULL
-
-#endif /* CONFIG_PM */
-
-/*-------------------------------------------------------------------------*/
-
-#ifndef HAVE_HARDWARE
-#error You need to configure some hardware for this driver
-#endif
-
-/*
- * chip vendor names won't normally be on the cables, and
- * may not be on the device.
- */
-
-static const struct usb_device_id products [] = {
-
-#ifdef CONFIG_USB_ALI_M5632
-{
- USB_DEVICE (0x0402, 0x5632), // ALi defaults
- .driver_info = (unsigned long) &ali_m5632_info,
-},
-#endif
-
-#ifdef CONFIG_USB_AN2720
-{
- USB_DEVICE (0x0547, 0x2720), // AnchorChips defaults
- .driver_info = (unsigned long) &an2720_info,
-}, {
- USB_DEVICE (0x0547, 0x2727), // Xircom PGUNET
- .driver_info = (unsigned long) &an2720_info,
-},
-#endif
-
-#ifdef CONFIG_USB_BELKIN
-{
- USB_DEVICE (0x050d, 0x0004), // Belkin
- .driver_info = (unsigned long) &belkin_info,
-}, {
- USB_DEVICE (0x056c, 0x8100), // eTEK
- .driver_info = (unsigned long) &belkin_info,
-}, {
- USB_DEVICE (0x0525, 0x9901), // Advance USBNET (eTEK)
- .driver_info = (unsigned long) &belkin_info,
-},
-#endif
-
-#ifdef CONFIG_USB_AX8817X
-{
- // Linksys USB200M
- USB_DEVICE (0x077b, 0x2226),
- .driver_info = (unsigned long) &ax8817x_info,
-}, {
- // Netgear FA120
- USB_DEVICE (0x0846, 0x1040),
- .driver_info = (unsigned long) &netgear_fa120_info,
-}, {
- // DLink DUB-E100
- USB_DEVICE (0x2001, 0x1a00),
- .driver_info = (unsigned long) &dlink_dub_e100_info,
-}, {
- // Intellinet, ST Lab USB Ethernet
- USB_DEVICE (0x0b95, 0x1720),
- .driver_info = (unsigned long) &ax8817x_info,
-}, {
- // Hawking UF200, TrendNet TU2-ET100
- USB_DEVICE (0x07b8, 0x420a),
- .driver_info = (unsigned long) &hawking_uf200_info,
-}, {
- // Billionton Systems, USB2AR
- USB_DEVICE (0x08dd, 0x90ff),
- .driver_info = (unsigned long) &ax8817x_info,
-}, {
- // ATEN UC210T
- USB_DEVICE (0x0557, 0x2009),
- .driver_info = (unsigned long) &ax8817x_info,
-}, {
- // Buffalo LUA-U2-KTX
- USB_DEVICE (0x0411, 0x003d),
- .driver_info = (unsigned long) &ax8817x_info,
-}, {
- // Sitecom LN-029 "USB 2.0 10/100 Ethernet adapter"
- USB_DEVICE (0x6189, 0x182d),
- .driver_info = (unsigned long) &ax8817x_info,
-}, {
- // corega FEther USB2-TX
- USB_DEVICE (0x07aa, 0x0017),
- .driver_info = (unsigned long) &ax8817x_info,
-}, {
- // Surecom EP-1427X-2
- USB_DEVICE (0x1189, 0x0893),
- .driver_info = (unsigned long) &ax8817x_info,
-}, {
- // goodway corp usb gwusb2e
- USB_DEVICE (0x1631, 0x6200),
- .driver_info = (unsigned long) &ax8817x_info,
-}, {
- // ASIX AX88772 10/100
- USB_DEVICE (0x0b95, 0x7720),
- .driver_info = (unsigned long) &ax88772_info,
-},
-#endif
-
-#ifdef CONFIG_USB_EPSON2888
-{
- USB_DEVICE (0x0525, 0x2888), // EPSON USB client
- .driver_info = (unsigned long) &epson2888_info,
-},
-#endif
-
-#ifdef CONFIG_USB_GENESYS
-{
- USB_DEVICE (0x05e3, 0x0502), // GL620USB-A
- .driver_info = (unsigned long) &genelink_info,
-},
- /* NOT: USB_DEVICE (0x05e3, 0x0501), // GL620USB
- * that's half duplex, not currently supported
- */
-#endif
-
-#ifdef CONFIG_USB_NET1080
-{
- USB_DEVICE (0x0525, 0x1080), // NetChip ref design
- .driver_info = (unsigned long) &net1080_info,
-}, {
- USB_DEVICE (0x06D0, 0x0622), // Laplink Gold
- .driver_info = (unsigned long) &net1080_info,
-},
-#endif
-
-#ifdef CONFIG_USB_PL2301
-{
- USB_DEVICE (0x067b, 0x0000), // PL-2301
- .driver_info = (unsigned long) &prolific_info,
-}, {
- USB_DEVICE (0x067b, 0x0001), // PL-2302
- .driver_info = (unsigned long) &prolific_info,
-},
-#endif
-
-#ifdef CONFIG_USB_KC2190
-{
- USB_DEVICE (0x050f, 0x0190), // KC-190
- .driver_info = (unsigned long) &kc2190_info,
-},
-#endif
-
-#ifdef CONFIG_USB_RNDIS
-{
- /* RNDIS is MSFT's un-official variant of CDC ACM */
- USB_INTERFACE_INFO (USB_CLASS_COMM, 2 /* ACM */, 0x0ff),
- .driver_info = (unsigned long) &rndis_info,
-},
-#endif
-
-#ifdef CONFIG_USB_ARMLINUX
-/*
- * SA-1100 using standard ARM Linux kernels, or compatible.
- * Often used when talking to Linux PDAs (iPaq, Yopy, etc).
- * The sa-1100 "usb-eth" driver handles the basic framing.
- *
- * PXA25x or PXA210 ... these use a "usb-eth" driver much like
- * the sa1100 one, but hardware uses different endpoint numbers.
- *
- * Or the Linux "Ethernet" gadget on hardware that can't talk
- * CDC Ethernet (e.g., no altsettings), in either of two modes:
- * - acting just like the old "usb-eth" firmware, though
- * the implementation is different
- * - supporting RNDIS as the first/default configuration for
- * MS-Windows interop; Linux needs to use the other config
- */
-{
- // 1183 = 0x049F, both used as hex values?
- // Compaq "Itsy" vendor/product id
- USB_DEVICE (0x049F, 0x505A), // usb-eth, or compatible
- .driver_info = (unsigned long) &linuxdev_info,
-}, {
- USB_DEVICE (0x0E7E, 0x1001), // G.Mate "Yopy"
- .driver_info = (unsigned long) &yopy_info,
-}, {
- USB_DEVICE (0x8086, 0x07d3), // "blob" bootloader
- .driver_info = (unsigned long) &blob_info,
-}, {
- // Linux Ethernet/RNDIS gadget on pxa210/25x/26x
- // e.g. Gumstix, current OpenZaurus, ...
- USB_DEVICE_VER (0x0525, 0xa4a2, 0x0203, 0x0203),
- .driver_info = (unsigned long) &linuxdev_info,
-},
-#endif
-
-#if defined(CONFIG_USB_ZAURUS) || defined(CONFIG_USB_CDCETHER)
-/*
- * SA-1100 based Sharp Zaurus ("collie"), or compatible.
- * Same idea as above, but different framing.
- *
- * PXA-2xx based models are also lying-about-cdc.
- * Some models don't even tell the same lies ...
- *
- * NOTE: OpenZaurus versions with 2.6 kernels won't use these entries,
- * unlike the older ones with 2.4 "embedix" kernels.
- *
- * NOTE: These entries do double-duty, serving as blacklist entries
- * whenever Zaurus support isn't enabled, but CDC Ethernet is.
- */
-#define ZAURUS_MASTER_INTERFACE \
- .bInterfaceClass = USB_CLASS_COMM, \
- .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
- .bInterfaceProtocol = USB_CDC_PROTO_NONE
-{
- .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
- | USB_DEVICE_ID_MATCH_DEVICE,
- .idVendor = 0x04DD,
- .idProduct = 0x8004,
- ZAURUS_MASTER_INTERFACE,
- .driver_info = ZAURUS_STRONGARM_INFO,
-}, {
- .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
- | USB_DEVICE_ID_MATCH_DEVICE,
- .idVendor = 0x04DD,
- .idProduct = 0x8005, /* A-300 */
- ZAURUS_MASTER_INTERFACE,
- .driver_info = ZAURUS_PXA_INFO,
-}, {
- .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 = ZAURUS_PXA_INFO,
-}, {
- .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
- | USB_DEVICE_ID_MATCH_DEVICE,
- .idVendor = 0x04DD,
- .idProduct = 0x8007, /* C-700 */
- ZAURUS_MASTER_INTERFACE,
- .driver_info = ZAURUS_PXA_INFO,
-}, {
- .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 = ZAURUS_PXA_INFO,
-}, {
- .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
- | USB_DEVICE_ID_MATCH_DEVICE,
- .idVendor = 0x04DD,
- .idProduct = 0x9032, /* SL-6000 */
- ZAURUS_MASTER_INTERFACE,
- .driver_info = ZAURUS_PXA_INFO,
-}, {
- .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 = ZAURUS_PXA_INFO,
-},
-
-#ifdef CONFIG_USB_ZAURUS
- /* At least some (reports vary) PXA units have very different lies
- * about their standards support: they claim to be cell phones with
- * direct access to their radios. (They don't conform to CDC MDLM.)
- */
-{
- USB_INTERFACE_INFO (USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM,
- USB_CDC_PROTO_NONE),
- .driver_info = (unsigned long) &bogus_mdlm_info,
-},
-#endif
-
-/* 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 = OLYMPUS_MXL_INFO,
-},
-#endif
-
-#ifdef CONFIG_USB_CDCETHER
-{
- /* 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 working around
- * 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,
-},
-#endif
-
- { }, // END
-};
-MODULE_DEVICE_TABLE (usb, products);
-
-static struct usb_driver usbnet_driver = {
- .owner = THIS_MODULE,
- .name = driver_name,
- .id_table = products,
- .probe = usbnet_probe,
- .disconnect = usbnet_disconnect,
- .suspend = usbnet_suspend,
- .resume = usbnet_resume,
-};
-
-/* Default ethtool_ops assigned. Devices can override in their bind() routine */
-static struct ethtool_ops usbnet_ethtool_ops = {
- .get_drvinfo = usbnet_get_drvinfo,
- .get_link = usbnet_get_link,
- .get_msglevel = usbnet_get_msglevel,
- .set_msglevel = usbnet_set_msglevel,
-};
/*-------------------------------------------------------------------------*/
-static int __init usbnet_init (void)
+static int __init usbnet_init(void)
{
- // compiler should optimize these out
+ /* compiler should optimize this out */
BUG_ON (sizeof (((struct sk_buff *)0)->cb)
< sizeof (struct skb_data));
-#ifdef CONFIG_USB_CDCETHER
- BUG_ON ((sizeof (((struct usbnet *)0)->data)
- < sizeof (struct cdc_state)));
-#endif
random_ether_addr(node_id);
-
- return usb_register(&usbnet_driver);
+ return 0;
}
-module_init (usbnet_init);
+module_init(usbnet_init);
-static void __exit usbnet_exit (void)
+static void __exit usbnet_exit(void)
{
- usb_deregister (&usbnet_driver);
}
-module_exit (usbnet_exit);
+module_exit(usbnet_exit);
-MODULE_AUTHOR ("David Brownell <dbrownell@users.sourceforge.net>");
-MODULE_DESCRIPTION ("USB Host-to-Host Link Drivers (numerous vendors)");
-MODULE_LICENSE ("GPL");
+MODULE_AUTHOR("David Brownell");
+MODULE_DESCRIPTION("USB network driver framework");
+MODULE_LICENSE("GPL");
git://git.onelab.eu / linux-2.6.git / blobdiff