1a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio/* 2a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * ipheth.c - Apple iPhone USB Ethernet driver 3a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * 4a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * Copyright (c) 2009 Diego Giagio <diego@giagio.com> 5a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * All rights reserved. 6a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * 7a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * Redistribution and use in source and binary forms, with or without 8a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * modification, are permitted provided that the following conditions 9a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * are met: 10a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * 1. Redistributions of source code must retain the above copyright 11a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * notice, this list of conditions and the following disclaimer. 12a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * 2. Redistributions in binary form must reproduce the above copyright 13a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * notice, this list of conditions and the following disclaimer in the 14a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * documentation and/or other materials provided with the distribution. 15a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * 3. Neither the name of GIAGIO.COM nor the names of its contributors 16a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * may be used to endorse or promote products derived from this software 17a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * without specific prior written permission. 18a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * 19a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * Alternatively, provided that this notice is retained in full, this 20a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * software may be distributed under the terms of the GNU General 21a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * Public License ("GPL") version 2, in which case the provisions of the 22a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * GPL apply INSTEAD OF those given above. 23a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * 24a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * The provided data structures and external interfaces from this code 25a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * are not restricted to be used by modules with a GPL compatible license. 26a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * 27a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 28a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 29a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 30a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 31a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 32a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 33a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 34a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 35a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 36a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 37a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 38a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * DAMAGE. 39a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * 40a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * 41a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * Attention: iPhone device must be paired, otherwise it won't respond to our 42a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * driver. For more info: http://giagio.com/wiki/moin.cgi/iPhoneEthernetDriver 43a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio * 44a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio */ 45a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 46a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#include <linux/kernel.h> 47a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#include <linux/errno.h> 48a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#include <linux/init.h> 49a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#include <linux/slab.h> 50a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#include <linux/module.h> 51a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#include <linux/netdevice.h> 52a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#include <linux/etherdevice.h> 53a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#include <linux/ethtool.h> 54a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#include <linux/usb.h> 55a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#include <linux/workqueue.h> 56a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 57a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#define USB_VENDOR_APPLE 0x05ac 58a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#define USB_PRODUCT_IPHONE 0x1290 59a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#define USB_PRODUCT_IPHONE_3G 0x1292 60a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#define USB_PRODUCT_IPHONE_3GS 0x1294 61f95d76ab82c381ce2221fbe75f331ff1478732dbJens Axboe#define USB_PRODUCT_IPHONE_4 0x1297 6202009afc223aae43b8e18918fc816e4520791537Kavan Smith#define USB_PRODUCT_IPHONE_4_VZW 0x129c 6372ba009b8a159e995e40d3b4e5d7d265acead983Tim Gardner#define USB_PRODUCT_IPHONE_4S 0x12a0 64a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 65a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#define IPHETH_USBINTF_CLASS 255 66a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#define IPHETH_USBINTF_SUBCLASS 253 67a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#define IPHETH_USBINTF_PROTO 1 68a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 69a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#define IPHETH_BUF_SIZE 1516 709c412942a0bb19ba18f7bd939d42eff1e132a901Ben Hutchings#define IPHETH_IP_ALIGN 2 /* padding at front of URB */ 71a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#define IPHETH_TX_TIMEOUT (5 * HZ) 72a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 73a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#define IPHETH_INTFNUM 2 74a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#define IPHETH_ALT_INTFNUM 1 75a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 76a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#define IPHETH_CTRL_ENDP 0x00 77a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#define IPHETH_CTRL_BUF_SIZE 0x40 78a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#define IPHETH_CTRL_TIMEOUT (5 * HZ) 79a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 80a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#define IPHETH_CMD_GET_MACADDR 0x00 81a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#define IPHETH_CMD_CARRIER_CHECK 0x45 82a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 83a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#define IPHETH_CARRIER_CHECK_TIMEOUT round_jiffies_relative(1 * HZ) 84a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio#define IPHETH_CARRIER_ON 0x04 85a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 86a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic struct usb_device_id ipheth_table[] = { 87a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio { USB_DEVICE_AND_INTERFACE_INFO( 88a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio USB_VENDOR_APPLE, USB_PRODUCT_IPHONE, 89a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, 90a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio IPHETH_USBINTF_PROTO) }, 91a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio { USB_DEVICE_AND_INTERFACE_INFO( 92a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3G, 93a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, 94a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio IPHETH_USBINTF_PROTO) }, 95a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio { USB_DEVICE_AND_INTERFACE_INFO( 96a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3GS, 97a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, 98a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio IPHETH_USBINTF_PROTO) }, 99f95d76ab82c381ce2221fbe75f331ff1478732dbJens Axboe { USB_DEVICE_AND_INTERFACE_INFO( 100f95d76ab82c381ce2221fbe75f331ff1478732dbJens Axboe USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_4, 101f95d76ab82c381ce2221fbe75f331ff1478732dbJens Axboe IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, 102f95d76ab82c381ce2221fbe75f331ff1478732dbJens Axboe IPHETH_USBINTF_PROTO) }, 10302009afc223aae43b8e18918fc816e4520791537Kavan Smith { USB_DEVICE_AND_INTERFACE_INFO( 10402009afc223aae43b8e18918fc816e4520791537Kavan Smith USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_4_VZW, 10502009afc223aae43b8e18918fc816e4520791537Kavan Smith IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, 10602009afc223aae43b8e18918fc816e4520791537Kavan Smith IPHETH_USBINTF_PROTO) }, 10772ba009b8a159e995e40d3b4e5d7d265acead983Tim Gardner { USB_DEVICE_AND_INTERFACE_INFO( 10872ba009b8a159e995e40d3b4e5d7d265acead983Tim Gardner USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_4S, 10972ba009b8a159e995e40d3b4e5d7d265acead983Tim Gardner IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, 11072ba009b8a159e995e40d3b4e5d7d265acead983Tim Gardner IPHETH_USBINTF_PROTO) }, 111a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio { } 112a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio}; 113a19259c3d589a014e5f47f148f74dfc44422c82bDiego GiagioMODULE_DEVICE_TABLE(usb, ipheth_table); 114a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 115a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostruct ipheth_device { 116a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct usb_device *udev; 117a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct usb_interface *intf; 118a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct net_device *net; 119a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct sk_buff *tx_skb; 120a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct urb *tx_urb; 121a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct urb *rx_urb; 122a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio unsigned char *tx_buf; 123a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio unsigned char *rx_buf; 124a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio unsigned char *ctrl_buf; 125a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio u8 bulk_in; 126a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio u8 bulk_out; 127a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct delayed_work carrier_work; 128a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio}; 129a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 130a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags); 131a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 132a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic int ipheth_alloc_urbs(struct ipheth_device *iphone) 133a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio{ 134a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct urb *tx_urb = NULL; 135a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct urb *rx_urb = NULL; 136a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio u8 *tx_buf = NULL; 137a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio u8 *rx_buf = NULL; 138a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 139a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio tx_urb = usb_alloc_urb(0, GFP_KERNEL); 140a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (tx_urb == NULL) 141d87ff58fda926fe5cb01214cccf1c72422ac776dDan Carpenter goto error_nomem; 142a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 143a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio rx_urb = usb_alloc_urb(0, GFP_KERNEL); 144a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (rx_urb == NULL) 145d87ff58fda926fe5cb01214cccf1c72422ac776dDan Carpenter goto free_tx_urb; 146a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 147997ea58eb92f9970b8af7aae48800d0ef43b9423Daniel Mack tx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE, 148997ea58eb92f9970b8af7aae48800d0ef43b9423Daniel Mack GFP_KERNEL, &tx_urb->transfer_dma); 149a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (tx_buf == NULL) 150d87ff58fda926fe5cb01214cccf1c72422ac776dDan Carpenter goto free_rx_urb; 151a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 152997ea58eb92f9970b8af7aae48800d0ef43b9423Daniel Mack rx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE, 153997ea58eb92f9970b8af7aae48800d0ef43b9423Daniel Mack GFP_KERNEL, &rx_urb->transfer_dma); 154a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (rx_buf == NULL) 155d87ff58fda926fe5cb01214cccf1c72422ac776dDan Carpenter goto free_tx_buf; 156a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 157a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 158a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio iphone->tx_urb = tx_urb; 159a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio iphone->rx_urb = rx_urb; 160a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio iphone->tx_buf = tx_buf; 161a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio iphone->rx_buf = rx_buf; 162a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return 0; 163a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 164d87ff58fda926fe5cb01214cccf1c72422ac776dDan Carpenterfree_tx_buf: 165997ea58eb92f9970b8af7aae48800d0ef43b9423Daniel Mack usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, tx_buf, 166997ea58eb92f9970b8af7aae48800d0ef43b9423Daniel Mack tx_urb->transfer_dma); 167d87ff58fda926fe5cb01214cccf1c72422ac776dDan Carpenterfree_rx_urb: 168a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio usb_free_urb(rx_urb); 169d87ff58fda926fe5cb01214cccf1c72422ac776dDan Carpenterfree_tx_urb: 170a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio usb_free_urb(tx_urb); 171d87ff58fda926fe5cb01214cccf1c72422ac776dDan Carpentererror_nomem: 172a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return -ENOMEM; 173a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio} 174a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 175a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic void ipheth_free_urbs(struct ipheth_device *iphone) 176a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio{ 177997ea58eb92f9970b8af7aae48800d0ef43b9423Daniel Mack usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, iphone->rx_buf, 178997ea58eb92f9970b8af7aae48800d0ef43b9423Daniel Mack iphone->rx_urb->transfer_dma); 179997ea58eb92f9970b8af7aae48800d0ef43b9423Daniel Mack usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, iphone->tx_buf, 180997ea58eb92f9970b8af7aae48800d0ef43b9423Daniel Mack iphone->tx_urb->transfer_dma); 181a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio usb_free_urb(iphone->rx_urb); 182a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio usb_free_urb(iphone->tx_urb); 183a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio} 184a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 185a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic void ipheth_kill_urbs(struct ipheth_device *dev) 186a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio{ 187a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio usb_kill_urb(dev->tx_urb); 188a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio usb_kill_urb(dev->rx_urb); 189a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio} 190a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 191a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic void ipheth_rcvbulk_callback(struct urb *urb) 192a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio{ 193a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct ipheth_device *dev; 194a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct sk_buff *skb; 195a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio int status; 196a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio char *buf; 197a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio int len; 198a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 199a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev = urb->context; 200a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (dev == NULL) 201a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return; 202a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 203a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio status = urb->status; 204a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio switch (status) { 205a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio case -ENOENT: 206a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio case -ECONNRESET: 207a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio case -ESHUTDOWN: 208a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return; 209a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio case 0: 210a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio break; 211a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio default: 212c31fd6c25c4619c0745b12cff842721a4bd4202cOliver Neukum err("%s: urb status: %d", __func__, status); 213a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return; 214a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio } 215a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 2169c412942a0bb19ba18f7bd939d42eff1e132a901Ben Hutchings if (urb->actual_length <= IPHETH_IP_ALIGN) { 2179c412942a0bb19ba18f7bd939d42eff1e132a901Ben Hutchings dev->net->stats.rx_length_errors++; 2189c412942a0bb19ba18f7bd939d42eff1e132a901Ben Hutchings return; 2199c412942a0bb19ba18f7bd939d42eff1e132a901Ben Hutchings } 2209c412942a0bb19ba18f7bd939d42eff1e132a901Ben Hutchings len = urb->actual_length - IPHETH_IP_ALIGN; 2219c412942a0bb19ba18f7bd939d42eff1e132a901Ben Hutchings buf = urb->transfer_buffer + IPHETH_IP_ALIGN; 222a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 2239c412942a0bb19ba18f7bd939d42eff1e132a901Ben Hutchings skb = dev_alloc_skb(len); 224a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (!skb) { 225a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio err("%s: dev_alloc_skb: -ENOMEM", __func__); 226a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->net->stats.rx_dropped++; 227a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return; 228a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio } 229a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 2309c412942a0bb19ba18f7bd939d42eff1e132a901Ben Hutchings memcpy(skb_put(skb, len), buf, len); 231a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio skb->dev = dev->net; 232a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio skb->protocol = eth_type_trans(skb, dev->net); 233a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 234a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->net->stats.rx_packets++; 235a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->net->stats.rx_bytes += len; 236a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 237a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio netif_rx(skb); 238a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio ipheth_rx_submit(dev, GFP_ATOMIC); 239a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio} 240a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 241a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic void ipheth_sndbulk_callback(struct urb *urb) 242a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio{ 243a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct ipheth_device *dev; 244c31fd6c25c4619c0745b12cff842721a4bd4202cOliver Neukum int status = urb->status; 245a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 246a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev = urb->context; 247a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (dev == NULL) 248a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return; 249a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 250c31fd6c25c4619c0745b12cff842721a4bd4202cOliver Neukum if (status != 0 && 251c31fd6c25c4619c0745b12cff842721a4bd4202cOliver Neukum status != -ENOENT && 252c31fd6c25c4619c0745b12cff842721a4bd4202cOliver Neukum status != -ECONNRESET && 253c31fd6c25c4619c0745b12cff842721a4bd4202cOliver Neukum status != -ESHUTDOWN) 254c31fd6c25c4619c0745b12cff842721a4bd4202cOliver Neukum err("%s: urb status: %d", __func__, status); 255a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 256a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev_kfree_skb_irq(dev->tx_skb); 257a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio netif_wake_queue(dev->net); 258a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio} 259a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 260a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic int ipheth_carrier_set(struct ipheth_device *dev) 261a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio{ 262a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct usb_device *udev = dev->udev; 263a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio int retval; 264a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 265a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio retval = usb_control_msg(udev, 266a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP), 267a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio IPHETH_CMD_CARRIER_CHECK, /* request */ 268a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 0xc0, /* request type */ 269a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 0x00, /* value */ 270a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 0x02, /* index */ 271a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->ctrl_buf, IPHETH_CTRL_BUF_SIZE, 272a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio IPHETH_CTRL_TIMEOUT); 273a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (retval < 0) { 274a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio err("%s: usb_control_msg: %d", __func__, retval); 275a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return retval; 276a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio } 277a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 278a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (dev->ctrl_buf[0] == IPHETH_CARRIER_ON) 279a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio netif_carrier_on(dev->net); 280a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio else 281a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio netif_carrier_off(dev->net); 282a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 283a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return 0; 284a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio} 285a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 286a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic void ipheth_carrier_check_work(struct work_struct *work) 287a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio{ 288a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct ipheth_device *dev = container_of(work, struct ipheth_device, 289a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio carrier_work.work); 290a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 291a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio ipheth_carrier_set(dev); 292a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT); 293a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio} 294a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 295a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic int ipheth_get_macaddr(struct ipheth_device *dev) 296a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio{ 297a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct usb_device *udev = dev->udev; 298a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct net_device *net = dev->net; 299a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio int retval; 300a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 301a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio retval = usb_control_msg(udev, 302a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP), 303a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio IPHETH_CMD_GET_MACADDR, /* request */ 304a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 0xc0, /* request type */ 305a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 0x00, /* value */ 306a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 0x02, /* index */ 307a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->ctrl_buf, 308a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio IPHETH_CTRL_BUF_SIZE, 309a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio IPHETH_CTRL_TIMEOUT); 310a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (retval < 0) { 311a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio err("%s: usb_control_msg: %d", __func__, retval); 312a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio } else if (retval < ETH_ALEN) { 313a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio err("%s: usb_control_msg: short packet: %d bytes", 314a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio __func__, retval); 315a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio retval = -EINVAL; 316a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio } else { 317a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio memcpy(net->dev_addr, dev->ctrl_buf, ETH_ALEN); 318a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio retval = 0; 319a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio } 320a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 321a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return retval; 322a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio} 323a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 324a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags) 325a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio{ 326a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct usb_device *udev = dev->udev; 327a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio int retval; 328a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 329a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio usb_fill_bulk_urb(dev->rx_urb, udev, 330a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio usb_rcvbulkpipe(udev, dev->bulk_in), 331a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->rx_buf, IPHETH_BUF_SIZE, 332a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio ipheth_rcvbulk_callback, 333a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev); 334a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 335a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 336a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio retval = usb_submit_urb(dev->rx_urb, mem_flags); 337a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (retval) 338a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio err("%s: usb_submit_urb: %d", __func__, retval); 339a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return retval; 340a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio} 341a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 342a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic int ipheth_open(struct net_device *net) 343a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio{ 344a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct ipheth_device *dev = netdev_priv(net); 345a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct usb_device *udev = dev->udev; 346a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio int retval = 0; 347a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 348a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio usb_set_interface(udev, IPHETH_INTFNUM, IPHETH_ALT_INTFNUM); 349a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 350a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio retval = ipheth_carrier_set(dev); 351a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (retval) 352a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return retval; 353a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 354a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio retval = ipheth_rx_submit(dev, GFP_KERNEL); 355a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (retval) 356a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return retval; 357a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 358a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT); 359a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio netif_start_queue(net); 360a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return retval; 361a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio} 362a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 363a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic int ipheth_close(struct net_device *net) 364a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio{ 365a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct ipheth_device *dev = netdev_priv(net); 366a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 367a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio cancel_delayed_work_sync(&dev->carrier_work); 368a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio netif_stop_queue(net); 369a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return 0; 370a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio} 371a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 372a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic int ipheth_tx(struct sk_buff *skb, struct net_device *net) 373a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio{ 374a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct ipheth_device *dev = netdev_priv(net); 375a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct usb_device *udev = dev->udev; 376a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio int retval; 377a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 378a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio /* Paranoid */ 379a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (skb->len > IPHETH_BUF_SIZE) { 3809c413ed55d5b52159e85a3937cda7f210a318048Joe Perches WARN(1, "%s: skb too large: %d bytes\n", __func__, skb->len); 381a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->net->stats.tx_dropped++; 382a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev_kfree_skb_irq(skb); 383a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return NETDEV_TX_OK; 384a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio } 385a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 386a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio memcpy(dev->tx_buf, skb->data, skb->len); 387a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (skb->len < IPHETH_BUF_SIZE) 388a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio memset(dev->tx_buf + skb->len, 0, IPHETH_BUF_SIZE - skb->len); 389a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 390a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio usb_fill_bulk_urb(dev->tx_urb, udev, 391a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio usb_sndbulkpipe(udev, dev->bulk_out), 392a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->tx_buf, IPHETH_BUF_SIZE, 393a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio ipheth_sndbulk_callback, 394a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev); 395a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->tx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 396a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 397a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio retval = usb_submit_urb(dev->tx_urb, GFP_ATOMIC); 398a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (retval) { 399a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio err("%s: usb_submit_urb: %d", __func__, retval); 400a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->net->stats.tx_errors++; 401a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev_kfree_skb_irq(skb); 402a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio } else { 403a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->tx_skb = skb; 404a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 405a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->net->stats.tx_packets++; 406a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->net->stats.tx_bytes += skb->len; 407a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio netif_stop_queue(net); 408a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio } 409a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 410a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return NETDEV_TX_OK; 411a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio} 412a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 413a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic void ipheth_tx_timeout(struct net_device *net) 414a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio{ 415a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct ipheth_device *dev = netdev_priv(net); 416a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 417a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio err("%s: TX timeout", __func__); 418a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->net->stats.tx_errors++; 419a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio usb_unlink_urb(dev->tx_urb); 420a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio} 421a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 422a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic u32 ipheth_ethtool_op_get_link(struct net_device *net) 423a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio{ 424a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct ipheth_device *dev = netdev_priv(net); 425a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return netif_carrier_ok(dev->net); 426a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio} 427a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 428bc689c9788f2cc9829d01d84083bc1714b969b15stephen hemmingerstatic const struct ethtool_ops ops = { 429a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio .get_link = ipheth_ethtool_op_get_link 430a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio}; 431a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 432a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic const struct net_device_ops ipheth_netdev_ops = { 4338ef207d63f8ecc0eae41cded066dd0e0ee170edfstephen hemminger .ndo_open = ipheth_open, 4348ef207d63f8ecc0eae41cded066dd0e0ee170edfstephen hemminger .ndo_stop = ipheth_close, 4358ef207d63f8ecc0eae41cded066dd0e0ee170edfstephen hemminger .ndo_start_xmit = ipheth_tx, 4368ef207d63f8ecc0eae41cded066dd0e0ee170edfstephen hemminger .ndo_tx_timeout = ipheth_tx_timeout, 437a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio}; 438a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 439a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic int ipheth_probe(struct usb_interface *intf, 440a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio const struct usb_device_id *id) 441a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio{ 442a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct usb_device *udev = interface_to_usbdev(intf); 443a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct usb_host_interface *hintf; 444a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct usb_endpoint_descriptor *endp; 445a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct ipheth_device *dev; 446a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct net_device *netdev; 447a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio int i; 448a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio int retval; 449a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 450a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio netdev = alloc_etherdev(sizeof(struct ipheth_device)); 451a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (!netdev) 452a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return -ENOMEM; 453a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 454a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio netdev->netdev_ops = &ipheth_netdev_ops; 455a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio netdev->watchdog_timeo = IPHETH_TX_TIMEOUT; 456c9cedbba0fc591e1c0587f838932ca3f3c6fec57Dan Williams strcpy(netdev->name, "eth%d"); 457a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 458a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev = netdev_priv(netdev); 459a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->udev = udev; 460a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->net = netdev; 461a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->intf = intf; 462a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 463a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio /* Set up endpoints */ 464a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio hintf = usb_altnum_to_altsetting(intf, IPHETH_ALT_INTFNUM); 465a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (hintf == NULL) { 466a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio retval = -ENODEV; 467a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio err("Unable to find alternate settings interface"); 468a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio goto err_endpoints; 469a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio } 470a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 471a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio for (i = 0; i < hintf->desc.bNumEndpoints; i++) { 472a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio endp = &hintf->endpoint[i].desc; 473a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (usb_endpoint_is_bulk_in(endp)) 474a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->bulk_in = endp->bEndpointAddress; 475a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio else if (usb_endpoint_is_bulk_out(endp)) 476a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->bulk_out = endp->bEndpointAddress; 477a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio } 478a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (!(dev->bulk_in && dev->bulk_out)) { 479a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio retval = -ENODEV; 480a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio err("Unable to find endpoints"); 481a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio goto err_endpoints; 482a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio } 483a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 484a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev->ctrl_buf = kmalloc(IPHETH_CTRL_BUF_SIZE, GFP_KERNEL); 485a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (dev->ctrl_buf == NULL) { 486a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio retval = -ENOMEM; 487a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio goto err_alloc_ctrl_buf; 488a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio } 489a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 490a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio retval = ipheth_get_macaddr(dev); 491a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (retval) 492a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio goto err_get_macaddr; 493a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 494a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio INIT_DELAYED_WORK(&dev->carrier_work, ipheth_carrier_check_work); 495a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 496a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio retval = ipheth_alloc_urbs(dev); 497a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (retval) { 498a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio err("error allocating urbs: %d", retval); 499a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio goto err_alloc_urbs; 500a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio } 501a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 502a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio usb_set_intfdata(intf, dev); 503a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 504a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio SET_NETDEV_DEV(netdev, &intf->dev); 505a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio SET_ETHTOOL_OPS(netdev, &ops); 506a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 507a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio retval = register_netdev(netdev); 508a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (retval) { 509a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio err("error registering netdev: %d", retval); 510a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio retval = -EIO; 511a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio goto err_register_netdev; 512a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio } 513a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 514a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev_info(&intf->dev, "Apple iPhone USB Ethernet device attached\n"); 515a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return 0; 516a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 517a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagioerr_register_netdev: 518a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio ipheth_free_urbs(dev); 519a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagioerr_alloc_urbs: 520a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagioerr_get_macaddr: 521a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagioerr_alloc_ctrl_buf: 522a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio kfree(dev->ctrl_buf); 523a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagioerr_endpoints: 524a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio free_netdev(netdev); 525a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio return retval; 526a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio} 527a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 528a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic void ipheth_disconnect(struct usb_interface *intf) 529a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio{ 530a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio struct ipheth_device *dev; 531a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 532a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev = usb_get_intfdata(intf); 533a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio if (dev != NULL) { 534a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio unregister_netdev(dev->net); 535a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio ipheth_kill_urbs(dev); 536a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio ipheth_free_urbs(dev); 537a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio kfree(dev->ctrl_buf); 538a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio free_netdev(dev->net); 539a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio } 540a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio usb_set_intfdata(intf, NULL); 541a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio dev_info(&intf->dev, "Apple iPhone USB Ethernet now disconnected\n"); 542a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio} 543a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 544a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagiostatic struct usb_driver ipheth_driver = { 545a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio .name = "ipheth", 546a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio .probe = ipheth_probe, 547a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio .disconnect = ipheth_disconnect, 548a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio .id_table = ipheth_table, 549a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio}; 550a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 551d632eb1bf22e11def74e4e53cc47d790fbdba105Greg Kroah-Hartmanmodule_usb_driver(ipheth_driver); 552a19259c3d589a014e5f47f148f74dfc44422c82bDiego Giagio 553a19259c3d589a014e5f47f148f74dfc44422c82bDiego GiagioMODULE_AUTHOR("Diego Giagio <diego@giagio.com>"); 554a19259c3d589a014e5f47f148f74dfc44422c82bDiego GiagioMODULE_DESCRIPTION("Apple iPhone USB Ethernet driver"); 555a19259c3d589a014e5f47f148f74dfc44422c82bDiego GiagioMODULE_LICENSE("Dual BSD/GPL"); 556