diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/net/usb/ipheth.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/net/usb/ipheth.c | 560 |
1 files changed, 0 insertions, 560 deletions
diff --git a/ANDROID_3.4.5/drivers/net/usb/ipheth.c b/ANDROID_3.4.5/drivers/net/usb/ipheth.c deleted file mode 100644 index 5cba4151..00000000 --- a/ANDROID_3.4.5/drivers/net/usb/ipheth.c +++ /dev/null @@ -1,560 +0,0 @@ -/* - * 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 USB_PRODUCT_IPHONE_4 0x1297 -#define USB_PRODUCT_IPAD 0x129a -#define USB_PRODUCT_IPHONE_4_VZW 0x129c -#define USB_PRODUCT_IPHONE_4S 0x12a0 - -#define IPHETH_USBINTF_CLASS 255 -#define IPHETH_USBINTF_SUBCLASS 253 -#define IPHETH_USBINTF_PROTO 1 - -#define IPHETH_BUF_SIZE 1516 -#define IPHETH_IP_ALIGN 2 /* padding at front of URB */ -#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) }, - { USB_DEVICE_AND_INTERFACE_INFO( - USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_4, - IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, - IPHETH_USBINTF_PROTO) }, - { USB_DEVICE_AND_INTERFACE_INFO( - USB_VENDOR_APPLE, USB_PRODUCT_IPAD, - IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, - IPHETH_USBINTF_PROTO) }, - { USB_DEVICE_AND_INTERFACE_INFO( - USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_4_VZW, - IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, - IPHETH_USBINTF_PROTO) }, - { USB_DEVICE_AND_INTERFACE_INFO( - USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_4S, - 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) - goto error_nomem; - - rx_urb = usb_alloc_urb(0, GFP_KERNEL); - if (rx_urb == NULL) - goto free_tx_urb; - - tx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE, - GFP_KERNEL, &tx_urb->transfer_dma); - if (tx_buf == NULL) - goto free_rx_urb; - - rx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE, - GFP_KERNEL, &rx_urb->transfer_dma); - if (rx_buf == NULL) - goto free_tx_buf; - - - iphone->tx_urb = tx_urb; - iphone->rx_urb = rx_urb; - iphone->tx_buf = tx_buf; - iphone->rx_buf = rx_buf; - return 0; - -free_tx_buf: - usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, tx_buf, - tx_urb->transfer_dma); -free_rx_urb: - usb_free_urb(rx_urb); -free_tx_urb: - usb_free_urb(tx_urb); -error_nomem: - return -ENOMEM; -} - -static void ipheth_free_urbs(struct ipheth_device *iphone) -{ - 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); - 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__, status); - return; - } - - if (urb->actual_length <= IPHETH_IP_ALIGN) { - dev->net->stats.rx_length_errors++; - return; - } - len = urb->actual_length - IPHETH_IP_ALIGN; - buf = urb->transfer_buffer + IPHETH_IP_ALIGN; - - skb = dev_alloc_skb(len); - if (!skb) { - err("%s: dev_alloc_skb: -ENOMEM", __func__); - dev->net->stats.rx_dropped++; - return; - } - - memcpy(skb_put(skb, len), buf, len); - 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; - int status = urb->status; - - dev = urb->context; - if (dev == NULL) - return; - - if (status != 0 && - status != -ENOENT && - status != -ECONNRESET && - status != -ESHUTDOWN) - err("%s: urb status: %d", __func__, 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\n", __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 u32 ipheth_ethtool_op_get_link(struct net_device *net) -{ - struct ipheth_device *dev = netdev_priv(net); - return netif_carrier_ok(dev->net); -} - -static const 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, -}; - -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, "eth%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); - - 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, -}; - -module_usb_driver(ipheth_driver); - -MODULE_AUTHOR("Diego Giagio <diego@giagio.com>"); -MODULE_DESCRIPTION("Apple iPhone USB Ethernet driver"); -MODULE_LICENSE("Dual BSD/GPL"); |