2010-04-18 02:35:16 -06:00
|
|
|
/*
|
|
|
|
* ipheth.c - Apple iPhone USB Ethernet driver
|
|
|
|
*
|
|
|
|
* Copyright (c) 2009 Diego Giagio <diego@giagio.com>
|
|
|
|
* All rights reserved.
|
|
|
|
*
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
|
|
* modification, are permitted provided that the following conditions
|
|
|
|
* are met:
|
|
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer.
|
|
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
|
|
* documentation and/or other materials provided with the distribution.
|
|
|
|
* 3. Neither the name of GIAGIO.COM nor the names of its contributors
|
|
|
|
* may be used to endorse or promote products derived from this software
|
|
|
|
* without specific prior written permission.
|
|
|
|
*
|
|
|
|
* Alternatively, provided that this notice is retained in full, this
|
|
|
|
* software may be distributed under the terms of the GNU General
|
|
|
|
* Public License ("GPL") version 2, in which case the provisions of the
|
|
|
|
* GPL apply INSTEAD OF those given above.
|
|
|
|
*
|
|
|
|
* The provided data structures and external interfaces from this code
|
|
|
|
* are not restricted to be used by modules with a GPL compatible license.
|
|
|
|
*
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
|
|
|
|
* DAMAGE.
|
|
|
|
*
|
|
|
|
*
|
|
|
|
* Attention: iPhone device must be paired, otherwise it won't respond to our
|
|
|
|
* driver. For more info: http://giagio.com/wiki/moin.cgi/iPhoneEthernetDriver
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <linux/kernel.h>
|
|
|
|
#include <linux/errno.h>
|
|
|
|
#include <linux/init.h>
|
|
|
|
#include <linux/slab.h>
|
|
|
|
#include <linux/module.h>
|
|
|
|
#include <linux/netdevice.h>
|
|
|
|
#include <linux/etherdevice.h>
|
|
|
|
#include <linux/ethtool.h>
|
|
|
|
#include <linux/usb.h>
|
|
|
|
#include <linux/workqueue.h>
|
|
|
|
|
|
|
|
#define USB_VENDOR_APPLE 0x05ac
|
|
|
|
#define USB_PRODUCT_IPHONE 0x1290
|
|
|
|
#define USB_PRODUCT_IPHONE_3G 0x1292
|
|
|
|
#define USB_PRODUCT_IPHONE_3GS 0x1294
|
|
|
|
|
|
|
|
#define IPHETH_USBINTF_CLASS 255
|
|
|
|
#define IPHETH_USBINTF_SUBCLASS 253
|
|
|
|
#define IPHETH_USBINTF_PROTO 1
|
|
|
|
|
|
|
|
#define IPHETH_BUF_SIZE 1516
|
|
|
|
#define IPHETH_TX_TIMEOUT (5 * HZ)
|
|
|
|
|
|
|
|
#define IPHETH_INTFNUM 2
|
|
|
|
#define IPHETH_ALT_INTFNUM 1
|
|
|
|
|
|
|
|
#define IPHETH_CTRL_ENDP 0x00
|
|
|
|
#define IPHETH_CTRL_BUF_SIZE 0x40
|
|
|
|
#define IPHETH_CTRL_TIMEOUT (5 * HZ)
|
|
|
|
|
|
|
|
#define IPHETH_CMD_GET_MACADDR 0x00
|
|
|
|
#define IPHETH_CMD_CARRIER_CHECK 0x45
|
|
|
|
|
|
|
|
#define IPHETH_CARRIER_CHECK_TIMEOUT round_jiffies_relative(1 * HZ)
|
|
|
|
#define IPHETH_CARRIER_ON 0x04
|
|
|
|
|
|
|
|
static struct usb_device_id ipheth_table[] = {
|
|
|
|
{ USB_DEVICE_AND_INTERFACE_INFO(
|
|
|
|
USB_VENDOR_APPLE, USB_PRODUCT_IPHONE,
|
|
|
|
IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
|
|
|
|
IPHETH_USBINTF_PROTO) },
|
|
|
|
{ USB_DEVICE_AND_INTERFACE_INFO(
|
|
|
|
USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3G,
|
|
|
|
IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
|
|
|
|
IPHETH_USBINTF_PROTO) },
|
|
|
|
{ USB_DEVICE_AND_INTERFACE_INFO(
|
|
|
|
USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3GS,
|
|
|
|
IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
|
|
|
|
IPHETH_USBINTF_PROTO) },
|
|
|
|
{ }
|
|
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(usb, ipheth_table);
|
|
|
|
|
|
|
|
struct ipheth_device {
|
|
|
|
struct usb_device *udev;
|
|
|
|
struct usb_interface *intf;
|
|
|
|
struct net_device *net;
|
|
|
|
struct sk_buff *tx_skb;
|
|
|
|
struct urb *tx_urb;
|
|
|
|
struct urb *rx_urb;
|
|
|
|
unsigned char *tx_buf;
|
|
|
|
unsigned char *rx_buf;
|
|
|
|
unsigned char *ctrl_buf;
|
|
|
|
u8 bulk_in;
|
|
|
|
u8 bulk_out;
|
|
|
|
struct delayed_work carrier_work;
|
|
|
|
};
|
|
|
|
|
|
|
|
static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags);
|
|
|
|
|
|
|
|
static int ipheth_alloc_urbs(struct ipheth_device *iphone)
|
|
|
|
{
|
|
|
|
struct urb *tx_urb = NULL;
|
|
|
|
struct urb *rx_urb = NULL;
|
|
|
|
u8 *tx_buf = NULL;
|
|
|
|
u8 *rx_buf = NULL;
|
|
|
|
|
|
|
|
tx_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
|
|
if (tx_urb == NULL)
|
2010-04-26 17:20:12 -06:00
|
|
|
goto error_nomem;
|
2010-04-18 02:35:16 -06:00
|
|
|
|
|
|
|
rx_urb = usb_alloc_urb(0, GFP_KERNEL);
|
|
|
|
if (rx_urb == NULL)
|
2010-04-26 17:20:12 -06:00
|
|
|
goto free_tx_urb;
|
2010-04-18 02:35:16 -06:00
|
|
|
|
2010-04-12 05:17:25 -06:00
|
|
|
tx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE,
|
|
|
|
GFP_KERNEL, &tx_urb->transfer_dma);
|
2010-04-18 02:35:16 -06:00
|
|
|
if (tx_buf == NULL)
|
2010-04-26 17:20:12 -06:00
|
|
|
goto free_rx_urb;
|
2010-04-18 02:35:16 -06:00
|
|
|
|
2010-04-12 05:17:25 -06:00
|
|
|
rx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE,
|
|
|
|
GFP_KERNEL, &rx_urb->transfer_dma);
|
2010-04-18 02:35:16 -06:00
|
|
|
if (rx_buf == NULL)
|
2010-04-26 17:20:12 -06:00
|
|
|
goto free_tx_buf;
|
2010-04-18 02:35:16 -06:00
|
|
|
|
|
|
|
|
|
|
|
iphone->tx_urb = tx_urb;
|
|
|
|
iphone->rx_urb = rx_urb;
|
|
|
|
iphone->tx_buf = tx_buf;
|
|
|
|
iphone->rx_buf = rx_buf;
|
|
|
|
return 0;
|
|
|
|
|
2010-04-26 17:20:12 -06:00
|
|
|
free_tx_buf:
|
2010-04-12 05:17:25 -06:00
|
|
|
usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, tx_buf,
|
|
|
|
tx_urb->transfer_dma);
|
2010-04-26 17:20:12 -06:00
|
|
|
free_rx_urb:
|
2010-04-18 02:35:16 -06:00
|
|
|
usb_free_urb(rx_urb);
|
2010-04-26 17:20:12 -06:00
|
|
|
free_tx_urb:
|
2010-04-18 02:35:16 -06:00
|
|
|
usb_free_urb(tx_urb);
|
2010-04-26 17:20:12 -06:00
|
|
|
error_nomem:
|
2010-04-18 02:35:16 -06:00
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void ipheth_free_urbs(struct ipheth_device *iphone)
|
|
|
|
{
|
2010-04-12 05:17:25 -06:00
|
|
|
usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, iphone->rx_buf,
|
|
|
|
iphone->rx_urb->transfer_dma);
|
|
|
|
usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, iphone->tx_buf,
|
|
|
|
iphone->tx_urb->transfer_dma);
|
2010-04-18 02:35:16 -06:00
|
|
|
usb_free_urb(iphone->rx_urb);
|
|
|
|
usb_free_urb(iphone->tx_urb);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void ipheth_kill_urbs(struct ipheth_device *dev)
|
|
|
|
{
|
|
|
|
usb_kill_urb(dev->tx_urb);
|
|
|
|
usb_kill_urb(dev->rx_urb);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void ipheth_rcvbulk_callback(struct urb *urb)
|
|
|
|
{
|
|
|
|
struct ipheth_device *dev;
|
|
|
|
struct sk_buff *skb;
|
|
|
|
int status;
|
|
|
|
char *buf;
|
|
|
|
int len;
|
|
|
|
|
|
|
|
dev = urb->context;
|
|
|
|
if (dev == NULL)
|
|
|
|
return;
|
|
|
|
|
|
|
|
status = urb->status;
|
|
|
|
switch (status) {
|
|
|
|
case -ENOENT:
|
|
|
|
case -ECONNRESET:
|
|
|
|
case -ESHUTDOWN:
|
|
|
|
return;
|
|
|
|
case 0:
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
err("%s: urb status: %d", __func__, urb->status);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
len = urb->actual_length;
|
|
|
|
buf = urb->transfer_buffer;
|
|
|
|
|
|
|
|
skb = dev_alloc_skb(NET_IP_ALIGN + len);
|
|
|
|
if (!skb) {
|
|
|
|
err("%s: dev_alloc_skb: -ENOMEM", __func__);
|
|
|
|
dev->net->stats.rx_dropped++;
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
skb_reserve(skb, NET_IP_ALIGN);
|
|
|
|
memcpy(skb_put(skb, len), buf + NET_IP_ALIGN, len - NET_IP_ALIGN);
|
|
|
|
skb->dev = dev->net;
|
|
|
|
skb->protocol = eth_type_trans(skb, dev->net);
|
|
|
|
|
|
|
|
dev->net->stats.rx_packets++;
|
|
|
|
dev->net->stats.rx_bytes += len;
|
|
|
|
|
|
|
|
netif_rx(skb);
|
|
|
|
ipheth_rx_submit(dev, GFP_ATOMIC);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void ipheth_sndbulk_callback(struct urb *urb)
|
|
|
|
{
|
|
|
|
struct ipheth_device *dev;
|
|
|
|
|
|
|
|
dev = urb->context;
|
|
|
|
if (dev == NULL)
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (urb->status != 0 &&
|
|
|
|
urb->status != -ENOENT &&
|
|
|
|
urb->status != -ECONNRESET &&
|
|
|
|
urb->status != -ESHUTDOWN)
|
|
|
|
err("%s: urb status: %d", __func__, urb->status);
|
|
|
|
|
|
|
|
dev_kfree_skb_irq(dev->tx_skb);
|
|
|
|
netif_wake_queue(dev->net);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int ipheth_carrier_set(struct ipheth_device *dev)
|
|
|
|
{
|
|
|
|
struct usb_device *udev = dev->udev;
|
|
|
|
int retval;
|
|
|
|
|
|
|
|
retval = usb_control_msg(udev,
|
|
|
|
usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP),
|
|
|
|
IPHETH_CMD_CARRIER_CHECK, /* request */
|
|
|
|
0xc0, /* request type */
|
|
|
|
0x00, /* value */
|
|
|
|
0x02, /* index */
|
|
|
|
dev->ctrl_buf, IPHETH_CTRL_BUF_SIZE,
|
|
|
|
IPHETH_CTRL_TIMEOUT);
|
|
|
|
if (retval < 0) {
|
|
|
|
err("%s: usb_control_msg: %d", __func__, retval);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (dev->ctrl_buf[0] == IPHETH_CARRIER_ON)
|
|
|
|
netif_carrier_on(dev->net);
|
|
|
|
else
|
|
|
|
netif_carrier_off(dev->net);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void ipheth_carrier_check_work(struct work_struct *work)
|
|
|
|
{
|
|
|
|
struct ipheth_device *dev = container_of(work, struct ipheth_device,
|
|
|
|
carrier_work.work);
|
|
|
|
|
|
|
|
ipheth_carrier_set(dev);
|
|
|
|
schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int ipheth_get_macaddr(struct ipheth_device *dev)
|
|
|
|
{
|
|
|
|
struct usb_device *udev = dev->udev;
|
|
|
|
struct net_device *net = dev->net;
|
|
|
|
int retval;
|
|
|
|
|
|
|
|
retval = usb_control_msg(udev,
|
|
|
|
usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP),
|
|
|
|
IPHETH_CMD_GET_MACADDR, /* request */
|
|
|
|
0xc0, /* request type */
|
|
|
|
0x00, /* value */
|
|
|
|
0x02, /* index */
|
|
|
|
dev->ctrl_buf,
|
|
|
|
IPHETH_CTRL_BUF_SIZE,
|
|
|
|
IPHETH_CTRL_TIMEOUT);
|
|
|
|
if (retval < 0) {
|
|
|
|
err("%s: usb_control_msg: %d", __func__, retval);
|
|
|
|
} else if (retval < ETH_ALEN) {
|
|
|
|
err("%s: usb_control_msg: short packet: %d bytes",
|
|
|
|
__func__, retval);
|
|
|
|
retval = -EINVAL;
|
|
|
|
} else {
|
|
|
|
memcpy(net->dev_addr, dev->ctrl_buf, ETH_ALEN);
|
|
|
|
retval = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags)
|
|
|
|
{
|
|
|
|
struct usb_device *udev = dev->udev;
|
|
|
|
int retval;
|
|
|
|
|
|
|
|
usb_fill_bulk_urb(dev->rx_urb, udev,
|
|
|
|
usb_rcvbulkpipe(udev, dev->bulk_in),
|
|
|
|
dev->rx_buf, IPHETH_BUF_SIZE,
|
|
|
|
ipheth_rcvbulk_callback,
|
|
|
|
dev);
|
|
|
|
dev->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
|
|
|
|
|
|
|
|
retval = usb_submit_urb(dev->rx_urb, mem_flags);
|
|
|
|
if (retval)
|
|
|
|
err("%s: usb_submit_urb: %d", __func__, retval);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int ipheth_open(struct net_device *net)
|
|
|
|
{
|
|
|
|
struct ipheth_device *dev = netdev_priv(net);
|
|
|
|
struct usb_device *udev = dev->udev;
|
|
|
|
int retval = 0;
|
|
|
|
|
|
|
|
usb_set_interface(udev, IPHETH_INTFNUM, IPHETH_ALT_INTFNUM);
|
|
|
|
|
|
|
|
retval = ipheth_carrier_set(dev);
|
|
|
|
if (retval)
|
|
|
|
return retval;
|
|
|
|
|
|
|
|
retval = ipheth_rx_submit(dev, GFP_KERNEL);
|
|
|
|
if (retval)
|
|
|
|
return retval;
|
|
|
|
|
|
|
|
schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT);
|
|
|
|
netif_start_queue(net);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int ipheth_close(struct net_device *net)
|
|
|
|
{
|
|
|
|
struct ipheth_device *dev = netdev_priv(net);
|
|
|
|
|
|
|
|
cancel_delayed_work_sync(&dev->carrier_work);
|
|
|
|
netif_stop_queue(net);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int ipheth_tx(struct sk_buff *skb, struct net_device *net)
|
|
|
|
{
|
|
|
|
struct ipheth_device *dev = netdev_priv(net);
|
|
|
|
struct usb_device *udev = dev->udev;
|
|
|
|
int retval;
|
|
|
|
|
|
|
|
/* Paranoid */
|
|
|
|
if (skb->len > IPHETH_BUF_SIZE) {
|
|
|
|
WARN(1, "%s: skb too large: %d bytes", __func__, skb->len);
|
|
|
|
dev->net->stats.tx_dropped++;
|
|
|
|
dev_kfree_skb_irq(skb);
|
|
|
|
return NETDEV_TX_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
memcpy(dev->tx_buf, skb->data, skb->len);
|
|
|
|
if (skb->len < IPHETH_BUF_SIZE)
|
|
|
|
memset(dev->tx_buf + skb->len, 0, IPHETH_BUF_SIZE - skb->len);
|
|
|
|
|
|
|
|
usb_fill_bulk_urb(dev->tx_urb, udev,
|
|
|
|
usb_sndbulkpipe(udev, dev->bulk_out),
|
|
|
|
dev->tx_buf, IPHETH_BUF_SIZE,
|
|
|
|
ipheth_sndbulk_callback,
|
|
|
|
dev);
|
|
|
|
dev->tx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
|
|
|
|
|
|
|
|
retval = usb_submit_urb(dev->tx_urb, GFP_ATOMIC);
|
|
|
|
if (retval) {
|
|
|
|
err("%s: usb_submit_urb: %d", __func__, retval);
|
|
|
|
dev->net->stats.tx_errors++;
|
|
|
|
dev_kfree_skb_irq(skb);
|
|
|
|
} else {
|
|
|
|
dev->tx_skb = skb;
|
|
|
|
|
|
|
|
dev->net->stats.tx_packets++;
|
|
|
|
dev->net->stats.tx_bytes += skb->len;
|
|
|
|
netif_stop_queue(net);
|
|
|
|
}
|
|
|
|
|
|
|
|
return NETDEV_TX_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void ipheth_tx_timeout(struct net_device *net)
|
|
|
|
{
|
|
|
|
struct ipheth_device *dev = netdev_priv(net);
|
|
|
|
|
|
|
|
err("%s: TX timeout", __func__);
|
|
|
|
dev->net->stats.tx_errors++;
|
|
|
|
usb_unlink_urb(dev->tx_urb);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct net_device_stats *ipheth_stats(struct net_device *net)
|
|
|
|
{
|
|
|
|
struct ipheth_device *dev = netdev_priv(net);
|
|
|
|
return &dev->net->stats;
|
|
|
|
}
|
|
|
|
|
|
|
|
static u32 ipheth_ethtool_op_get_link(struct net_device *net)
|
|
|
|
{
|
|
|
|
struct ipheth_device *dev = netdev_priv(net);
|
|
|
|
return netif_carrier_ok(dev->net);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct ethtool_ops ops = {
|
|
|
|
.get_link = ipheth_ethtool_op_get_link
|
|
|
|
};
|
|
|
|
|
|
|
|
static const struct net_device_ops ipheth_netdev_ops = {
|
|
|
|
.ndo_open = &ipheth_open,
|
|
|
|
.ndo_stop = &ipheth_close,
|
|
|
|
.ndo_start_xmit = &ipheth_tx,
|
|
|
|
.ndo_tx_timeout = &ipheth_tx_timeout,
|
|
|
|
.ndo_get_stats = &ipheth_stats,
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct device_type ipheth_type = {
|
|
|
|
.name = "wwan",
|
|
|
|
};
|
|
|
|
|
|
|
|
static int ipheth_probe(struct usb_interface *intf,
|
|
|
|
const struct usb_device_id *id)
|
|
|
|
{
|
|
|
|
struct usb_device *udev = interface_to_usbdev(intf);
|
|
|
|
struct usb_host_interface *hintf;
|
|
|
|
struct usb_endpoint_descriptor *endp;
|
|
|
|
struct ipheth_device *dev;
|
|
|
|
struct net_device *netdev;
|
|
|
|
int i;
|
|
|
|
int retval;
|
|
|
|
|
|
|
|
netdev = alloc_etherdev(sizeof(struct ipheth_device));
|
|
|
|
if (!netdev)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
netdev->netdev_ops = &ipheth_netdev_ops;
|
|
|
|
netdev->watchdog_timeo = IPHETH_TX_TIMEOUT;
|
|
|
|
strcpy(netdev->name, "wwan%d");
|
|
|
|
|
|
|
|
dev = netdev_priv(netdev);
|
|
|
|
dev->udev = udev;
|
|
|
|
dev->net = netdev;
|
|
|
|
dev->intf = intf;
|
|
|
|
|
|
|
|
/* Set up endpoints */
|
|
|
|
hintf = usb_altnum_to_altsetting(intf, IPHETH_ALT_INTFNUM);
|
|
|
|
if (hintf == NULL) {
|
|
|
|
retval = -ENODEV;
|
|
|
|
err("Unable to find alternate settings interface");
|
|
|
|
goto err_endpoints;
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < hintf->desc.bNumEndpoints; i++) {
|
|
|
|
endp = &hintf->endpoint[i].desc;
|
|
|
|
if (usb_endpoint_is_bulk_in(endp))
|
|
|
|
dev->bulk_in = endp->bEndpointAddress;
|
|
|
|
else if (usb_endpoint_is_bulk_out(endp))
|
|
|
|
dev->bulk_out = endp->bEndpointAddress;
|
|
|
|
}
|
|
|
|
if (!(dev->bulk_in && dev->bulk_out)) {
|
|
|
|
retval = -ENODEV;
|
|
|
|
err("Unable to find endpoints");
|
|
|
|
goto err_endpoints;
|
|
|
|
}
|
|
|
|
|
|
|
|
dev->ctrl_buf = kmalloc(IPHETH_CTRL_BUF_SIZE, GFP_KERNEL);
|
|
|
|
if (dev->ctrl_buf == NULL) {
|
|
|
|
retval = -ENOMEM;
|
|
|
|
goto err_alloc_ctrl_buf;
|
|
|
|
}
|
|
|
|
|
|
|
|
retval = ipheth_get_macaddr(dev);
|
|
|
|
if (retval)
|
|
|
|
goto err_get_macaddr;
|
|
|
|
|
|
|
|
INIT_DELAYED_WORK(&dev->carrier_work, ipheth_carrier_check_work);
|
|
|
|
|
|
|
|
retval = ipheth_alloc_urbs(dev);
|
|
|
|
if (retval) {
|
|
|
|
err("error allocating urbs: %d", retval);
|
|
|
|
goto err_alloc_urbs;
|
|
|
|
}
|
|
|
|
|
|
|
|
usb_set_intfdata(intf, dev);
|
|
|
|
|
|
|
|
SET_NETDEV_DEV(netdev, &intf->dev);
|
|
|
|
SET_ETHTOOL_OPS(netdev, &ops);
|
|
|
|
SET_NETDEV_DEVTYPE(netdev, &ipheth_type);
|
|
|
|
|
|
|
|
retval = register_netdev(netdev);
|
|
|
|
if (retval) {
|
|
|
|
err("error registering netdev: %d", retval);
|
|
|
|
retval = -EIO;
|
|
|
|
goto err_register_netdev;
|
|
|
|
}
|
|
|
|
|
|
|
|
dev_info(&intf->dev, "Apple iPhone USB Ethernet device attached\n");
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
err_register_netdev:
|
|
|
|
ipheth_free_urbs(dev);
|
|
|
|
err_alloc_urbs:
|
|
|
|
err_get_macaddr:
|
|
|
|
err_alloc_ctrl_buf:
|
|
|
|
kfree(dev->ctrl_buf);
|
|
|
|
err_endpoints:
|
|
|
|
free_netdev(netdev);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void ipheth_disconnect(struct usb_interface *intf)
|
|
|
|
{
|
|
|
|
struct ipheth_device *dev;
|
|
|
|
|
|
|
|
dev = usb_get_intfdata(intf);
|
|
|
|
if (dev != NULL) {
|
|
|
|
unregister_netdev(dev->net);
|
|
|
|
ipheth_kill_urbs(dev);
|
|
|
|
ipheth_free_urbs(dev);
|
|
|
|
kfree(dev->ctrl_buf);
|
|
|
|
free_netdev(dev->net);
|
|
|
|
}
|
|
|
|
usb_set_intfdata(intf, NULL);
|
|
|
|
dev_info(&intf->dev, "Apple iPhone USB Ethernet now disconnected\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct usb_driver ipheth_driver = {
|
|
|
|
.name = "ipheth",
|
|
|
|
.probe = ipheth_probe,
|
|
|
|
.disconnect = ipheth_disconnect,
|
|
|
|
.id_table = ipheth_table,
|
|
|
|
};
|
|
|
|
|
|
|
|
static int __init ipheth_init(void)
|
|
|
|
{
|
|
|
|
int retval;
|
|
|
|
|
|
|
|
retval = usb_register(&ipheth_driver);
|
|
|
|
if (retval) {
|
|
|
|
err("usb_register failed: %d", retval);
|
|
|
|
return retval;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void __exit ipheth_exit(void)
|
|
|
|
{
|
|
|
|
usb_deregister(&ipheth_driver);
|
|
|
|
}
|
|
|
|
|
|
|
|
module_init(ipheth_init);
|
|
|
|
module_exit(ipheth_exit);
|
|
|
|
|
|
|
|
MODULE_AUTHOR("Diego Giagio <diego@giagio.com>");
|
|
|
|
MODULE_DESCRIPTION("Apple iPhone USB Ethernet driver");
|
|
|
|
MODULE_LICENSE("Dual BSD/GPL");
|