diff options
Diffstat (limited to 'drivers/net')
-rw-r--r-- | drivers/net/Makefile | 1 | ||||
-rw-r--r-- | drivers/net/usb/Kconfig | 12 | ||||
-rw-r--r-- | drivers/net/usb/Makefile | 1 | ||||
-rw-r--r-- | drivers/net/usb/ipheth.c | 568 |
4 files changed, 582 insertions, 0 deletions
diff --git a/drivers/net/Makefile b/drivers/net/Makefile index a583b50d9de8..12b280afdd51 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile | |||
@@ -273,6 +273,7 @@ obj-$(CONFIG_USB_RTL8150) += usb/ | |||
273 | obj-$(CONFIG_USB_HSO) += usb/ | 273 | obj-$(CONFIG_USB_HSO) += usb/ |
274 | obj-$(CONFIG_USB_USBNET) += usb/ | 274 | obj-$(CONFIG_USB_USBNET) += usb/ |
275 | obj-$(CONFIG_USB_ZD1201) += usb/ | 275 | obj-$(CONFIG_USB_ZD1201) += usb/ |
276 | obj-$(CONFIG_USB_IPHETH) += usb/ | ||
276 | 277 | ||
277 | obj-y += wireless/ | 278 | obj-y += wireless/ |
278 | obj-$(CONFIG_NET_TULIP) += tulip/ | 279 | obj-$(CONFIG_NET_TULIP) += tulip/ |
diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig index ba56ce4382d9..63be4caec70e 100644 --- a/drivers/net/usb/Kconfig +++ b/drivers/net/usb/Kconfig | |||
@@ -385,4 +385,16 @@ config USB_CDC_PHONET | |||
385 | cellular modem, as found on most Nokia handsets with the | 385 | cellular modem, as found on most Nokia handsets with the |
386 | "PC suite" USB profile. | 386 | "PC suite" USB profile. |
387 | 387 | ||
388 | config USB_IPHETH | ||
389 | tristate "Apple iPhone USB Ethernet driver" | ||
390 | default n | ||
391 | ---help--- | ||
392 | Module used to share Internet connection (tethering) from your | ||
393 | iPhone (Original, 3G and 3GS) to your system. | ||
394 | Note that you need userspace libraries and programs that are needed | ||
395 | to pair your device with your system and that understand the iPhone | ||
396 | protocol. | ||
397 | |||
398 | For more information: http://giagio.com/wiki/moin.cgi/iPhoneEthernetDriver | ||
399 | |||
388 | endmenu | 400 | endmenu |
diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile index 82ea62955b56..edb09c0ddf8e 100644 --- a/drivers/net/usb/Makefile +++ b/drivers/net/usb/Makefile | |||
@@ -23,4 +23,5 @@ obj-$(CONFIG_USB_NET_MCS7830) += mcs7830.o | |||
23 | obj-$(CONFIG_USB_USBNET) += usbnet.o | 23 | obj-$(CONFIG_USB_USBNET) += usbnet.o |
24 | obj-$(CONFIG_USB_NET_INT51X1) += int51x1.o | 24 | obj-$(CONFIG_USB_NET_INT51X1) += int51x1.o |
25 | obj-$(CONFIG_USB_CDC_PHONET) += cdc-phonet.o | 25 | obj-$(CONFIG_USB_CDC_PHONET) += cdc-phonet.o |
26 | obj-$(CONFIG_USB_IPHETH) += ipheth.o | ||
26 | 27 | ||
diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c new file mode 100644 index 000000000000..fd1033130a81 --- /dev/null +++ b/drivers/net/usb/ipheth.c | |||
@@ -0,0 +1,568 @@ | |||
1 | /* | ||
2 | * ipheth.c - Apple iPhone USB Ethernet driver | ||
3 | * | ||
4 | * Copyright (c) 2009 Diego Giagio <diego@giagio.com> | ||
5 | * All rights reserved. | ||
6 | * | ||
7 | * Redistribution and use in source and binary forms, with or without | ||
8 | * modification, are permitted provided that the following conditions | ||
9 | * are met: | ||
10 | * 1. Redistributions of source code must retain the above copyright | ||
11 | * notice, this list of conditions and the following disclaimer. | ||
12 | * 2. Redistributions in binary form must reproduce the above copyright | ||
13 | * notice, this list of conditions and the following disclaimer in the | ||
14 | * documentation and/or other materials provided with the distribution. | ||
15 | * 3. Neither the name of GIAGIO.COM nor the names of its contributors | ||
16 | * may be used to endorse or promote products derived from this software | ||
17 | * without specific prior written permission. | ||
18 | * | ||
19 | * Alternatively, provided that this notice is retained in full, this | ||
20 | * software may be distributed under the terms of the GNU General | ||
21 | * Public License ("GPL") version 2, in which case the provisions of the | ||
22 | * GPL apply INSTEAD OF those given above. | ||
23 | * | ||
24 | * The provided data structures and external interfaces from this code | ||
25 | * are not restricted to be used by modules with a GPL compatible license. | ||
26 | * | ||
27 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
28 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
29 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
30 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
31 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
32 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
33 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
34 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
35 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
36 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
37 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH | ||
38 | * DAMAGE. | ||
39 | * | ||
40 | * | ||
41 | * Attention: iPhone device must be paired, otherwise it won't respond to our | ||
42 | * driver. For more info: http://giagio.com/wiki/moin.cgi/iPhoneEthernetDriver | ||
43 | * | ||
44 | */ | ||
45 | |||
46 | #include <linux/kernel.h> | ||
47 | #include <linux/errno.h> | ||
48 | #include <linux/init.h> | ||
49 | #include <linux/slab.h> | ||
50 | #include <linux/module.h> | ||
51 | #include <linux/netdevice.h> | ||
52 | #include <linux/etherdevice.h> | ||
53 | #include <linux/ethtool.h> | ||
54 | #include <linux/usb.h> | ||
55 | #include <linux/workqueue.h> | ||
56 | |||
57 | #define USB_VENDOR_APPLE 0x05ac | ||
58 | #define USB_PRODUCT_IPHONE 0x1290 | ||
59 | #define USB_PRODUCT_IPHONE_3G 0x1292 | ||
60 | #define USB_PRODUCT_IPHONE_3GS 0x1294 | ||
61 | |||
62 | #define IPHETH_USBINTF_CLASS 255 | ||
63 | #define IPHETH_USBINTF_SUBCLASS 253 | ||
64 | #define IPHETH_USBINTF_PROTO 1 | ||
65 | |||
66 | #define IPHETH_BUF_SIZE 1516 | ||
67 | #define IPHETH_TX_TIMEOUT (5 * HZ) | ||
68 | |||
69 | #define IPHETH_INTFNUM 2 | ||
70 | #define IPHETH_ALT_INTFNUM 1 | ||
71 | |||
72 | #define IPHETH_CTRL_ENDP 0x00 | ||
73 | #define IPHETH_CTRL_BUF_SIZE 0x40 | ||
74 | #define IPHETH_CTRL_TIMEOUT (5 * HZ) | ||
75 | |||
76 | #define IPHETH_CMD_GET_MACADDR 0x00 | ||
77 | #define IPHETH_CMD_CARRIER_CHECK 0x45 | ||
78 | |||
79 | #define IPHETH_CARRIER_CHECK_TIMEOUT round_jiffies_relative(1 * HZ) | ||
80 | #define IPHETH_CARRIER_ON 0x04 | ||
81 | |||
82 | static struct usb_device_id ipheth_table[] = { | ||
83 | { USB_DEVICE_AND_INTERFACE_INFO( | ||
84 | USB_VENDOR_APPLE, USB_PRODUCT_IPHONE, | ||
85 | IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, | ||
86 | IPHETH_USBINTF_PROTO) }, | ||
87 | { USB_DEVICE_AND_INTERFACE_INFO( | ||
88 | USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3G, | ||
89 | IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, | ||
90 | IPHETH_USBINTF_PROTO) }, | ||
91 | { USB_DEVICE_AND_INTERFACE_INFO( | ||
92 | USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3GS, | ||
93 | IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, | ||
94 | IPHETH_USBINTF_PROTO) }, | ||
95 | { } | ||
96 | }; | ||
97 | MODULE_DEVICE_TABLE(usb, ipheth_table); | ||
98 | |||
99 | struct ipheth_device { | ||
100 | struct usb_device *udev; | ||
101 | struct usb_interface *intf; | ||
102 | struct net_device *net; | ||
103 | struct sk_buff *tx_skb; | ||
104 | struct urb *tx_urb; | ||
105 | struct urb *rx_urb; | ||
106 | unsigned char *tx_buf; | ||
107 | unsigned char *rx_buf; | ||
108 | unsigned char *ctrl_buf; | ||
109 | u8 bulk_in; | ||
110 | u8 bulk_out; | ||
111 | struct delayed_work carrier_work; | ||
112 | }; | ||
113 | |||
114 | static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags); | ||
115 | |||
116 | static int ipheth_alloc_urbs(struct ipheth_device *iphone) | ||
117 | { | ||
118 | struct urb *tx_urb = NULL; | ||
119 | struct urb *rx_urb = NULL; | ||
120 | u8 *tx_buf = NULL; | ||
121 | u8 *rx_buf = NULL; | ||
122 | |||
123 | tx_urb = usb_alloc_urb(0, GFP_KERNEL); | ||
124 | if (tx_urb == NULL) | ||
125 | goto error; | ||
126 | |||
127 | rx_urb = usb_alloc_urb(0, GFP_KERNEL); | ||
128 | if (rx_urb == NULL) | ||
129 | goto error; | ||
130 | |||
131 | tx_buf = usb_buffer_alloc(iphone->udev, | ||
132 | IPHETH_BUF_SIZE, | ||
133 | GFP_KERNEL, | ||
134 | &tx_urb->transfer_dma); | ||
135 | if (tx_buf == NULL) | ||
136 | goto error; | ||
137 | |||
138 | rx_buf = usb_buffer_alloc(iphone->udev, | ||
139 | IPHETH_BUF_SIZE, | ||
140 | GFP_KERNEL, | ||
141 | &rx_urb->transfer_dma); | ||
142 | if (rx_buf == NULL) | ||
143 | goto error; | ||
144 | |||
145 | |||
146 | iphone->tx_urb = tx_urb; | ||
147 | iphone->rx_urb = rx_urb; | ||
148 | iphone->tx_buf = tx_buf; | ||
149 | iphone->rx_buf = rx_buf; | ||
150 | return 0; | ||
151 | |||
152 | error: | ||
153 | usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, rx_buf, | ||
154 | rx_urb->transfer_dma); | ||
155 | usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, tx_buf, | ||
156 | tx_urb->transfer_dma); | ||
157 | usb_free_urb(rx_urb); | ||
158 | usb_free_urb(tx_urb); | ||
159 | return -ENOMEM; | ||
160 | } | ||
161 | |||
162 | static void ipheth_free_urbs(struct ipheth_device *iphone) | ||
163 | { | ||
164 | usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, iphone->rx_buf, | ||
165 | iphone->rx_urb->transfer_dma); | ||
166 | usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, iphone->tx_buf, | ||
167 | iphone->tx_urb->transfer_dma); | ||
168 | usb_free_urb(iphone->rx_urb); | ||
169 | usb_free_urb(iphone->tx_urb); | ||
170 | } | ||
171 | |||
172 | static void ipheth_kill_urbs(struct ipheth_device *dev) | ||
173 | { | ||
174 | usb_kill_urb(dev->tx_urb); | ||
175 | usb_kill_urb(dev->rx_urb); | ||
176 | } | ||
177 | |||
178 | static void ipheth_rcvbulk_callback(struct urb *urb) | ||
179 | { | ||
180 | struct ipheth_device *dev; | ||
181 | struct sk_buff *skb; | ||
182 | int status; | ||
183 | char *buf; | ||
184 | int len; | ||
185 | |||
186 | dev = urb->context; | ||
187 | if (dev == NULL) | ||
188 | return; | ||
189 | |||
190 | status = urb->status; | ||
191 | switch (status) { | ||
192 | case -ENOENT: | ||
193 | case -ECONNRESET: | ||
194 | case -ESHUTDOWN: | ||
195 | return; | ||
196 | case 0: | ||
197 | break; | ||
198 | default: | ||
199 | err("%s: urb status: %d", __func__, urb->status); | ||
200 | return; | ||
201 | } | ||
202 | |||
203 | len = urb->actual_length; | ||
204 | buf = urb->transfer_buffer; | ||
205 | |||
206 | skb = dev_alloc_skb(NET_IP_ALIGN + len); | ||
207 | if (!skb) { | ||
208 | err("%s: dev_alloc_skb: -ENOMEM", __func__); | ||
209 | dev->net->stats.rx_dropped++; | ||
210 | return; | ||
211 | } | ||
212 | |||
213 | skb_reserve(skb, NET_IP_ALIGN); | ||
214 | memcpy(skb_put(skb, len), buf + NET_IP_ALIGN, len - NET_IP_ALIGN); | ||
215 | skb->dev = dev->net; | ||
216 | skb->protocol = eth_type_trans(skb, dev->net); | ||
217 | |||
218 | dev->net->stats.rx_packets++; | ||
219 | dev->net->stats.rx_bytes += len; | ||
220 | |||
221 | netif_rx(skb); | ||
222 | ipheth_rx_submit(dev, GFP_ATOMIC); | ||
223 | } | ||
224 | |||
225 | static void ipheth_sndbulk_callback(struct urb *urb) | ||
226 | { | ||
227 | struct ipheth_device *dev; | ||
228 | |||
229 | dev = urb->context; | ||
230 | if (dev == NULL) | ||
231 | return; | ||
232 | |||
233 | if (urb->status != 0 && | ||
234 | urb->status != -ENOENT && | ||
235 | urb->status != -ECONNRESET && | ||
236 | urb->status != -ESHUTDOWN) | ||
237 | err("%s: urb status: %d", __func__, urb->status); | ||
238 | |||
239 | dev_kfree_skb_irq(dev->tx_skb); | ||
240 | netif_wake_queue(dev->net); | ||
241 | } | ||
242 | |||
243 | static int ipheth_carrier_set(struct ipheth_device *dev) | ||
244 | { | ||
245 | struct usb_device *udev = dev->udev; | ||
246 | int retval; | ||
247 | |||
248 | retval = usb_control_msg(udev, | ||
249 | usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP), | ||
250 | IPHETH_CMD_CARRIER_CHECK, /* request */ | ||
251 | 0xc0, /* request type */ | ||
252 | 0x00, /* value */ | ||
253 | 0x02, /* index */ | ||
254 | dev->ctrl_buf, IPHETH_CTRL_BUF_SIZE, | ||
255 | IPHETH_CTRL_TIMEOUT); | ||
256 | if (retval < 0) { | ||
257 | err("%s: usb_control_msg: %d", __func__, retval); | ||
258 | return retval; | ||
259 | } | ||
260 | |||
261 | if (dev->ctrl_buf[0] == IPHETH_CARRIER_ON) | ||
262 | netif_carrier_on(dev->net); | ||
263 | else | ||
264 | netif_carrier_off(dev->net); | ||
265 | |||
266 | return 0; | ||
267 | } | ||
268 | |||
269 | static void ipheth_carrier_check_work(struct work_struct *work) | ||
270 | { | ||
271 | struct ipheth_device *dev = container_of(work, struct ipheth_device, | ||
272 | carrier_work.work); | ||
273 | |||
274 | ipheth_carrier_set(dev); | ||
275 | schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT); | ||
276 | } | ||
277 | |||
278 | static int ipheth_get_macaddr(struct ipheth_device *dev) | ||
279 | { | ||
280 | struct usb_device *udev = dev->udev; | ||
281 | struct net_device *net = dev->net; | ||
282 | int retval; | ||
283 | |||
284 | retval = usb_control_msg(udev, | ||
285 | usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP), | ||
286 | IPHETH_CMD_GET_MACADDR, /* request */ | ||
287 | 0xc0, /* request type */ | ||
288 | 0x00, /* value */ | ||
289 | 0x02, /* index */ | ||
290 | dev->ctrl_buf, | ||
291 | IPHETH_CTRL_BUF_SIZE, | ||
292 | IPHETH_CTRL_TIMEOUT); | ||
293 | if (retval < 0) { | ||
294 | err("%s: usb_control_msg: %d", __func__, retval); | ||
295 | } else if (retval < ETH_ALEN) { | ||
296 | err("%s: usb_control_msg: short packet: %d bytes", | ||
297 | __func__, retval); | ||
298 | retval = -EINVAL; | ||
299 | } else { | ||
300 | memcpy(net->dev_addr, dev->ctrl_buf, ETH_ALEN); | ||
301 | retval = 0; | ||
302 | } | ||
303 | |||
304 | return retval; | ||
305 | } | ||
306 | |||
307 | static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags) | ||
308 | { | ||
309 | struct usb_device *udev = dev->udev; | ||
310 | int retval; | ||
311 | |||
312 | usb_fill_bulk_urb(dev->rx_urb, udev, | ||
313 | usb_rcvbulkpipe(udev, dev->bulk_in), | ||
314 | dev->rx_buf, IPHETH_BUF_SIZE, | ||
315 | ipheth_rcvbulk_callback, | ||
316 | dev); | ||
317 | dev->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | ||
318 | |||
319 | retval = usb_submit_urb(dev->rx_urb, mem_flags); | ||
320 | if (retval) | ||
321 | err("%s: usb_submit_urb: %d", __func__, retval); | ||
322 | return retval; | ||
323 | } | ||
324 | |||
325 | static int ipheth_open(struct net_device *net) | ||
326 | { | ||
327 | struct ipheth_device *dev = netdev_priv(net); | ||
328 | struct usb_device *udev = dev->udev; | ||
329 | int retval = 0; | ||
330 | |||
331 | usb_set_interface(udev, IPHETH_INTFNUM, IPHETH_ALT_INTFNUM); | ||
332 | |||
333 | retval = ipheth_carrier_set(dev); | ||
334 | if (retval) | ||
335 | return retval; | ||
336 | |||
337 | retval = ipheth_rx_submit(dev, GFP_KERNEL); | ||
338 | if (retval) | ||
339 | return retval; | ||
340 | |||
341 | schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT); | ||
342 | netif_start_queue(net); | ||
343 | return retval; | ||
344 | } | ||
345 | |||
346 | static int ipheth_close(struct net_device *net) | ||
347 | { | ||
348 | struct ipheth_device *dev = netdev_priv(net); | ||
349 | |||
350 | cancel_delayed_work_sync(&dev->carrier_work); | ||
351 | netif_stop_queue(net); | ||
352 | return 0; | ||
353 | } | ||
354 | |||
355 | static int ipheth_tx(struct sk_buff *skb, struct net_device *net) | ||
356 | { | ||
357 | struct ipheth_device *dev = netdev_priv(net); | ||
358 | struct usb_device *udev = dev->udev; | ||
359 | int retval; | ||
360 | |||
361 | /* Paranoid */ | ||
362 | if (skb->len > IPHETH_BUF_SIZE) { | ||
363 | WARN(1, "%s: skb too large: %d bytes", __func__, skb->len); | ||
364 | dev->net->stats.tx_dropped++; | ||
365 | dev_kfree_skb_irq(skb); | ||
366 | return NETDEV_TX_OK; | ||
367 | } | ||
368 | |||
369 | memcpy(dev->tx_buf, skb->data, skb->len); | ||
370 | if (skb->len < IPHETH_BUF_SIZE) | ||
371 | memset(dev->tx_buf + skb->len, 0, IPHETH_BUF_SIZE - skb->len); | ||
372 | |||
373 | usb_fill_bulk_urb(dev->tx_urb, udev, | ||
374 | usb_sndbulkpipe(udev, dev->bulk_out), | ||
375 | dev->tx_buf, IPHETH_BUF_SIZE, | ||
376 | ipheth_sndbulk_callback, | ||
377 | dev); | ||
378 | dev->tx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | ||
379 | |||
380 | retval = usb_submit_urb(dev->tx_urb, GFP_ATOMIC); | ||
381 | if (retval) { | ||
382 | err("%s: usb_submit_urb: %d", __func__, retval); | ||
383 | dev->net->stats.tx_errors++; | ||
384 | dev_kfree_skb_irq(skb); | ||
385 | } else { | ||
386 | dev->tx_skb = skb; | ||
387 | |||
388 | dev->net->stats.tx_packets++; | ||
389 | dev->net->stats.tx_bytes += skb->len; | ||
390 | netif_stop_queue(net); | ||
391 | } | ||
392 | |||
393 | return NETDEV_TX_OK; | ||
394 | } | ||
395 | |||
396 | static void ipheth_tx_timeout(struct net_device *net) | ||
397 | { | ||
398 | struct ipheth_device *dev = netdev_priv(net); | ||
399 | |||
400 | err("%s: TX timeout", __func__); | ||
401 | dev->net->stats.tx_errors++; | ||
402 | usb_unlink_urb(dev->tx_urb); | ||
403 | } | ||
404 | |||
405 | static struct net_device_stats *ipheth_stats(struct net_device *net) | ||
406 | { | ||
407 | struct ipheth_device *dev = netdev_priv(net); | ||
408 | return &dev->net->stats; | ||
409 | } | ||
410 | |||
411 | static u32 ipheth_ethtool_op_get_link(struct net_device *net) | ||
412 | { | ||
413 | struct ipheth_device *dev = netdev_priv(net); | ||
414 | return netif_carrier_ok(dev->net); | ||
415 | } | ||
416 | |||
417 | static struct ethtool_ops ops = { | ||
418 | .get_link = ipheth_ethtool_op_get_link | ||
419 | }; | ||
420 | |||
421 | static const struct net_device_ops ipheth_netdev_ops = { | ||
422 | .ndo_open = &ipheth_open, | ||
423 | .ndo_stop = &ipheth_close, | ||
424 | .ndo_start_xmit = &ipheth_tx, | ||
425 | .ndo_tx_timeout = &ipheth_tx_timeout, | ||
426 | .ndo_get_stats = &ipheth_stats, | ||
427 | }; | ||
428 | |||
429 | static struct device_type ipheth_type = { | ||
430 | .name = "wwan", | ||
431 | }; | ||
432 | |||
433 | static int ipheth_probe(struct usb_interface *intf, | ||
434 | const struct usb_device_id *id) | ||
435 | { | ||
436 | struct usb_device *udev = interface_to_usbdev(intf); | ||
437 | struct usb_host_interface *hintf; | ||
438 | struct usb_endpoint_descriptor *endp; | ||
439 | struct ipheth_device *dev; | ||
440 | struct net_device *netdev; | ||
441 | int i; | ||
442 | int retval; | ||
443 | |||
444 | netdev = alloc_etherdev(sizeof(struct ipheth_device)); | ||
445 | if (!netdev) | ||
446 | return -ENOMEM; | ||
447 | |||
448 | netdev->netdev_ops = &ipheth_netdev_ops; | ||
449 | netdev->watchdog_timeo = IPHETH_TX_TIMEOUT; | ||
450 | strcpy(netdev->name, "wwan%d"); | ||
451 | |||
452 | dev = netdev_priv(netdev); | ||
453 | dev->udev = udev; | ||
454 | dev->net = netdev; | ||
455 | dev->intf = intf; | ||
456 | |||
457 | /* Set up endpoints */ | ||
458 | hintf = usb_altnum_to_altsetting(intf, IPHETH_ALT_INTFNUM); | ||
459 | if (hintf == NULL) { | ||
460 | retval = -ENODEV; | ||
461 | err("Unable to find alternate settings interface"); | ||
462 | goto err_endpoints; | ||
463 | } | ||
464 | |||
465 | for (i = 0; i < hintf->desc.bNumEndpoints; i++) { | ||
466 | endp = &hintf->endpoint[i].desc; | ||
467 | if (usb_endpoint_is_bulk_in(endp)) | ||
468 | dev->bulk_in = endp->bEndpointAddress; | ||
469 | else if (usb_endpoint_is_bulk_out(endp)) | ||
470 | dev->bulk_out = endp->bEndpointAddress; | ||
471 | } | ||
472 | if (!(dev->bulk_in && dev->bulk_out)) { | ||
473 | retval = -ENODEV; | ||
474 | err("Unable to find endpoints"); | ||
475 | goto err_endpoints; | ||
476 | } | ||
477 | |||
478 | dev->ctrl_buf = kmalloc(IPHETH_CTRL_BUF_SIZE, GFP_KERNEL); | ||
479 | if (dev->ctrl_buf == NULL) { | ||
480 | retval = -ENOMEM; | ||
481 | goto err_alloc_ctrl_buf; | ||
482 | } | ||
483 | |||
484 | retval = ipheth_get_macaddr(dev); | ||
485 | if (retval) | ||
486 | goto err_get_macaddr; | ||
487 | |||
488 | INIT_DELAYED_WORK(&dev->carrier_work, ipheth_carrier_check_work); | ||
489 | |||
490 | retval = ipheth_alloc_urbs(dev); | ||
491 | if (retval) { | ||
492 | err("error allocating urbs: %d", retval); | ||
493 | goto err_alloc_urbs; | ||
494 | } | ||
495 | |||
496 | usb_set_intfdata(intf, dev); | ||
497 | |||
498 | SET_NETDEV_DEV(netdev, &intf->dev); | ||
499 | SET_ETHTOOL_OPS(netdev, &ops); | ||
500 | SET_NETDEV_DEVTYPE(netdev, &ipheth_type); | ||
501 | |||
502 | retval = register_netdev(netdev); | ||
503 | if (retval) { | ||
504 | err("error registering netdev: %d", retval); | ||
505 | retval = -EIO; | ||
506 | goto err_register_netdev; | ||
507 | } | ||
508 | |||
509 | dev_info(&intf->dev, "Apple iPhone USB Ethernet device attached\n"); | ||
510 | return 0; | ||
511 | |||
512 | err_register_netdev: | ||
513 | ipheth_free_urbs(dev); | ||
514 | err_alloc_urbs: | ||
515 | err_get_macaddr: | ||
516 | err_alloc_ctrl_buf: | ||
517 | kfree(dev->ctrl_buf); | ||
518 | err_endpoints: | ||
519 | free_netdev(netdev); | ||
520 | return retval; | ||
521 | } | ||
522 | |||
523 | static void ipheth_disconnect(struct usb_interface *intf) | ||
524 | { | ||
525 | struct ipheth_device *dev; | ||
526 | |||
527 | dev = usb_get_intfdata(intf); | ||
528 | if (dev != NULL) { | ||
529 | unregister_netdev(dev->net); | ||
530 | ipheth_kill_urbs(dev); | ||
531 | ipheth_free_urbs(dev); | ||
532 | kfree(dev->ctrl_buf); | ||
533 | free_netdev(dev->net); | ||
534 | } | ||
535 | usb_set_intfdata(intf, NULL); | ||
536 | dev_info(&intf->dev, "Apple iPhone USB Ethernet now disconnected\n"); | ||
537 | } | ||
538 | |||
539 | static struct usb_driver ipheth_driver = { | ||
540 | .name = "ipheth", | ||
541 | .probe = ipheth_probe, | ||
542 | .disconnect = ipheth_disconnect, | ||
543 | .id_table = ipheth_table, | ||
544 | }; | ||
545 | |||
546 | static int __init ipheth_init(void) | ||
547 | { | ||
548 | int retval; | ||
549 | |||
550 | retval = usb_register(&ipheth_driver); | ||
551 | if (retval) { | ||
552 | err("usb_register failed: %d", retval); | ||
553 | return retval; | ||
554 | } | ||
555 | return 0; | ||
556 | } | ||
557 | |||
558 | static void __exit ipheth_exit(void) | ||
559 | { | ||
560 | usb_deregister(&ipheth_driver); | ||
561 | } | ||
562 | |||
563 | module_init(ipheth_init); | ||
564 | module_exit(ipheth_exit); | ||
565 | |||
566 | MODULE_AUTHOR("Diego Giagio <diego@giagio.com>"); | ||
567 | MODULE_DESCRIPTION("Apple iPhone USB Ethernet driver"); | ||
568 | MODULE_LICENSE("Dual BSD/GPL"); | ||