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1/*
2 * Copyright (C) 2002 Pavel Machek <pavel@ucw.cz>
3 * Copyright (C) 2002-2005 by David Brownell
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, see <http://www.gnu.org/licenses/>.
17 */
18
19// #define DEBUG // error path messages, extra info
20// #define VERBOSE // more; success messages
21
22#include <linux/module.h>
23#include <linux/netdevice.h>
24#include <linux/ethtool.h>
25#include <linux/workqueue.h>
26#include <linux/mii.h>
27#include <linux/crc32.h>
28#include <linux/usb.h>
29#include <linux/usb/cdc.h>
30#include <linux/usb/usbnet.h>
31
32
33/*
34 * All known Zaurii lie about their standards conformance. At least
35 * the earliest SA-1100 models lie by saying they support CDC Ethernet.
36 * Some later models (especially PXA-25x and PXA-27x based ones) lie
37 * and say they support CDC MDLM (for access to cell phone modems).
38 *
39 * There are non-Zaurus products that use these same protocols too.
40 *
41 * The annoying thing is that at the same time Sharp was developing
42 * that annoying standards-breaking software, the Linux community had
43 * a simple "CDC Subset" working reliably on the same SA-1100 hardware.
44 * That is, the same functionality but not violating standards.
45 *
46 * The CDC Ethernet nonconformance points are troublesome to hosts
47 * with a true CDC Ethernet implementation:
48 * - Framing appends a CRC, which the spec says drivers "must not" do;
49 * - Transfers data in altsetting zero, instead of altsetting 1;
50 * - All these peripherals use the same ethernet address.
51 *
52 * The CDC MDLM nonconformance is less immediately troublesome, since all
53 * MDLM implementations are quasi-proprietary anyway.
54 */
55
56static struct sk_buff *
57zaurus_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
58{
59 int padlen;
60 struct sk_buff *skb2;
61
62 padlen = 2;
63 if (!skb_cloned(skb)) {
64 int tailroom = skb_tailroom(skb);
65 if ((padlen + 4) <= tailroom)
66 goto done;
67 }
68 skb2 = skb_copy_expand(skb, 0, 4 + padlen, flags);
69 dev_kfree_skb_any(skb);
70 skb = skb2;
71 if (skb) {
72 u32 fcs;
73done:
74 fcs = crc32_le(~0, skb->data, skb->len);
75 fcs = ~fcs;
76
77 *skb_put (skb, 1) = fcs & 0xff;
78 *skb_put (skb, 1) = (fcs>> 8) & 0xff;
79 *skb_put (skb, 1) = (fcs>>16) & 0xff;
80 *skb_put (skb, 1) = (fcs>>24) & 0xff;
81 }
82 return skb;
83}
84
85static int zaurus_bind(struct usbnet *dev, struct usb_interface *intf)
86{
87 /* Belcarra's funky framing has other options; mostly
88 * TRAILERS (!) with 4 bytes CRC, and maybe 2 pad bytes.
89 */
90 dev->net->hard_header_len += 6;
91 dev->rx_urb_size = dev->net->hard_header_len + dev->net->mtu;
92 return usbnet_generic_cdc_bind(dev, intf);
93}
94
95/* PDA style devices are always connected if present */
96static int always_connected (struct usbnet *dev)
97{
98 return 0;
99}
100
101static const struct driver_info zaurus_sl5x00_info = {
102 .description = "Sharp Zaurus SL-5x00",
103 .flags = FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
104 .check_connect = always_connected,
105 .bind = zaurus_bind,
106 .unbind = usbnet_cdc_unbind,
107 .tx_fixup = zaurus_tx_fixup,
108};
109#define ZAURUS_STRONGARM_INFO ((unsigned long)&zaurus_sl5x00_info)
110
111static const struct driver_info zaurus_pxa_info = {
112 .description = "Sharp Zaurus, PXA-2xx based",
113 .flags = FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
114 .check_connect = always_connected,
115 .bind = zaurus_bind,
116 .unbind = usbnet_cdc_unbind,
117 .tx_fixup = zaurus_tx_fixup,
118};
119#define ZAURUS_PXA_INFO ((unsigned long)&zaurus_pxa_info)
120
121static const struct driver_info olympus_mxl_info = {
122 .description = "Olympus R1000",
123 .flags = FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
124 .check_connect = always_connected,
125 .bind = zaurus_bind,
126 .unbind = usbnet_cdc_unbind,
127 .tx_fixup = zaurus_tx_fixup,
128};
129#define OLYMPUS_MXL_INFO ((unsigned long)&olympus_mxl_info)
130
131
132/* Some more recent products using Lineo/Belcarra code will wrongly claim
133 * CDC MDLM conformance. They aren't conformant: data endpoints live
134 * in the control interface, there's no data interface, and it's not used
135 * to talk to a cell phone radio. But at least we can detect these two
136 * pseudo-classes, rather than growing this product list with entries for
137 * each new nonconformant product (sigh).
138 */
139static const u8 safe_guid[16] = {
140 0x5d, 0x34, 0xcf, 0x66, 0x11, 0x18, 0x11, 0xd6,
141 0xa2, 0x1a, 0x00, 0x01, 0x02, 0xca, 0x9a, 0x7f,
142};
143static const u8 blan_guid[16] = {
144 0x74, 0xf0, 0x3d, 0xbd, 0x1e, 0xc1, 0x44, 0x70,
145 0xa3, 0x67, 0x71, 0x34, 0xc9, 0xf5, 0x54, 0x37,
146};
147
148static int blan_mdlm_bind(struct usbnet *dev, struct usb_interface *intf)
149{
150 u8 *buf = intf->cur_altsetting->extra;
151 int len = intf->cur_altsetting->extralen;
152 struct usb_cdc_mdlm_desc *desc = NULL;
153 struct usb_cdc_mdlm_detail_desc *detail = NULL;
154
155 while (len > 3) {
156 if (buf [1] != USB_DT_CS_INTERFACE)
157 goto next_desc;
158
159 /* use bDescriptorSubType, and just verify that we get a
160 * "BLAN" (or "SAFE") descriptor.
161 */
162 switch (buf [2]) {
163 case USB_CDC_MDLM_TYPE:
164 if (desc) {
165 dev_dbg(&intf->dev, "extra MDLM\n");
166 goto bad_desc;
167 }
168 desc = (void *) buf;
169 if (desc->bLength != sizeof *desc) {
170 dev_dbg(&intf->dev, "MDLM len %u\n",
171 desc->bLength);
172 goto bad_desc;
173 }
174 /* expect bcdVersion 1.0, ignore */
175 if (memcmp(&desc->bGUID, blan_guid, 16) &&
176 memcmp(&desc->bGUID, safe_guid, 16)) {
177 /* hey, this one might _really_ be MDLM! */
178 dev_dbg(&intf->dev, "MDLM guid\n");
179 goto bad_desc;
180 }
181 break;
182 case USB_CDC_MDLM_DETAIL_TYPE:
183 if (detail) {
184 dev_dbg(&intf->dev, "extra MDLM detail\n");
185 goto bad_desc;
186 }
187 detail = (void *) buf;
188 switch (detail->bGuidDescriptorType) {
189 case 0: /* "SAFE" */
190 if (detail->bLength != (sizeof *detail + 2))
191 goto bad_detail;
192 break;
193 case 1: /* "BLAN" */
194 if (detail->bLength != (sizeof *detail + 3))
195 goto bad_detail;
196 break;
197 default:
198 goto bad_detail;
199 }
200
201 /* assuming we either noticed BLAN already, or will
202 * find it soon, there are some data bytes here:
203 * - bmNetworkCapabilities (unused)
204 * - bmDataCapabilities (bits, see below)
205 * - bPad (ignored, for PADAFTER -- BLAN-only)
206 * bits are:
207 * - 0x01 -- Zaurus framing (add CRC)
208 * - 0x02 -- PADBEFORE (CRC includes some padding)
209 * - 0x04 -- PADAFTER (some padding after CRC)
210 * - 0x08 -- "fermat" packet mangling (for hw bugs)
211 * the PADBEFORE appears not to matter; we interop
212 * with devices that use it and those that don't.
213 */
214 if ((detail->bDetailData[1] & ~0x02) != 0x01) {
215 /* bmDataCapabilities == 0 would be fine too,
216 * but framing is minidriver-coupled for now.
217 */
218bad_detail:
219 dev_dbg(&intf->dev,
220 "bad MDLM detail, %d %d %d\n",
221 detail->bLength,
222 detail->bDetailData[0],
223 detail->bDetailData[2]);
224 goto bad_desc;
225 }
226
227 /* same extra framing as for non-BLAN mode */
228 dev->net->hard_header_len += 6;
229 dev->rx_urb_size = dev->net->hard_header_len
230 + dev->net->mtu;
231 break;
232 }
233next_desc:
234 len -= buf [0]; /* bLength */
235 buf += buf [0];
236 }
237
238 if (!desc || !detail) {
239 dev_dbg(&intf->dev, "missing cdc mdlm %s%sdescriptor\n",
240 desc ? "" : "func ",
241 detail ? "" : "detail ");
242 goto bad_desc;
243 }
244
245 /* There's probably a CDC Ethernet descriptor there, but we can't
246 * rely on the Ethernet address it provides since not all vendors
247 * bother to make it unique. Likewise there's no point in tracking
248 * of the CDC event notifications.
249 */
250 return usbnet_get_endpoints(dev, intf);
251
252bad_desc:
253 dev_info(&dev->udev->dev, "unsupported MDLM descriptors\n");
254 return -ENODEV;
255}
256
257static const struct driver_info bogus_mdlm_info = {
258 .description = "pseudo-MDLM (BLAN) device",
259 .flags = FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
260 .check_connect = always_connected,
261 .tx_fixup = zaurus_tx_fixup,
262 .bind = blan_mdlm_bind,
263};
264
265static const struct usb_device_id products [] = {
266#define ZAURUS_MASTER_INTERFACE \
267 .bInterfaceClass = USB_CLASS_COMM, \
268 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
269 .bInterfaceProtocol = USB_CDC_PROTO_NONE
270
271/* SA-1100 based Sharp Zaurus ("collie"), or compatible. */
272{
273 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
274 | USB_DEVICE_ID_MATCH_DEVICE,
275 .idVendor = 0x04DD,
276 .idProduct = 0x8004,
277 ZAURUS_MASTER_INTERFACE,
278 .driver_info = ZAURUS_STRONGARM_INFO,
279},
280
281/* PXA-2xx based models are also lying-about-cdc. If you add any
282 * more devices that claim to be CDC Ethernet, make sure they get
283 * added to the blacklist in cdc_ether too.
284 *
285 * NOTE: OpenZaurus versions with 2.6 kernels won't use these entries,
286 * unlike the older ones with 2.4 "embedix" kernels.
287 */
288{
289 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
290 | USB_DEVICE_ID_MATCH_DEVICE,
291 .idVendor = 0x04DD,
292 .idProduct = 0x8005, /* A-300 */
293 ZAURUS_MASTER_INTERFACE,
294 .driver_info = ZAURUS_PXA_INFO,
295}, {
296 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
297 | USB_DEVICE_ID_MATCH_DEVICE,
298 .idVendor = 0x04DD,
299 .idProduct = 0x8006, /* B-500/SL-5600 */
300 ZAURUS_MASTER_INTERFACE,
301 .driver_info = ZAURUS_PXA_INFO,
302}, {
303 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
304 | USB_DEVICE_ID_MATCH_DEVICE,
305 .idVendor = 0x04DD,
306 .idProduct = 0x8007, /* C-700 */
307 ZAURUS_MASTER_INTERFACE,
308 .driver_info = ZAURUS_PXA_INFO,
309}, {
310 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
311 | USB_DEVICE_ID_MATCH_DEVICE,
312 .idVendor = 0x04DD,
313 .idProduct = 0x9031, /* C-750 C-760 */
314 ZAURUS_MASTER_INTERFACE,
315 .driver_info = ZAURUS_PXA_INFO,
316}, {
317 /* C-750/C-760/C-860/SL-C3000 PDA in MDLM mode */
318 USB_DEVICE_AND_INTERFACE_INFO(0x04DD, 0x9031, USB_CLASS_COMM,
319 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
320 .driver_info = (unsigned long) &bogus_mdlm_info,
321}, {
322 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
323 | USB_DEVICE_ID_MATCH_DEVICE,
324 .idVendor = 0x04DD,
325 .idProduct = 0x9032, /* SL-6000 */
326 ZAURUS_MASTER_INTERFACE,
327 .driver_info = ZAURUS_PXA_INFO,
328}, {
329 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
330 | USB_DEVICE_ID_MATCH_DEVICE,
331 .idVendor = 0x04DD,
332 /* reported with some C860 units */
333 .idProduct = 0x9050, /* C-860 */
334 ZAURUS_MASTER_INTERFACE,
335 .driver_info = ZAURUS_PXA_INFO,
336},
337{
338 /* Motorola Rokr E6 */
339 USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x6027, USB_CLASS_COMM,
340 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
341 .driver_info = (unsigned long) &bogus_mdlm_info,
342}, {
343 /* Motorola MOTOMAGX phones */
344 USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x6425, USB_CLASS_COMM,
345 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
346 .driver_info = (unsigned long) &bogus_mdlm_info,
347},
348
349/* Olympus has some models with a Zaurus-compatible option.
350 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
351 */
352{
353 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
354 | USB_DEVICE_ID_MATCH_DEVICE,
355 .idVendor = 0x07B4,
356 .idProduct = 0x0F02, /* R-1000 */
357 ZAURUS_MASTER_INTERFACE,
358 .driver_info = OLYMPUS_MXL_INFO,
359},
360
361/* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */
362{
363 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM,
364 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
365 .driver_info = (unsigned long) &bogus_mdlm_info,
366},
367 { }, // END
368};
369MODULE_DEVICE_TABLE(usb, products);
370
371static struct usb_driver zaurus_driver = {
372 .name = "zaurus",
373 .id_table = products,
374 .probe = usbnet_probe,
375 .disconnect = usbnet_disconnect,
376 .suspend = usbnet_suspend,
377 .resume = usbnet_resume,
378 .disable_hub_initiated_lpm = 1,
379};
380
381module_usb_driver(zaurus_driver);
382
383MODULE_AUTHOR("Pavel Machek, David Brownell");
384MODULE_DESCRIPTION("Sharp Zaurus PDA, and compatible products");
385MODULE_LICENSE("GPL");
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (C) 2002 Pavel Machek <pavel@ucw.cz>
4 * Copyright (C) 2002-2005 by David Brownell
5 */
6
7// #define DEBUG // error path messages, extra info
8// #define VERBOSE // more; success messages
9
10#include <linux/module.h>
11#include <linux/netdevice.h>
12#include <linux/ethtool.h>
13#include <linux/workqueue.h>
14#include <linux/mii.h>
15#include <linux/crc32.h>
16#include <linux/usb.h>
17#include <linux/usb/cdc.h>
18#include <linux/usb/usbnet.h>
19
20
21/*
22 * All known Zaurii lie about their standards conformance. At least
23 * the earliest SA-1100 models lie by saying they support CDC Ethernet.
24 * Some later models (especially PXA-25x and PXA-27x based ones) lie
25 * and say they support CDC MDLM (for access to cell phone modems).
26 *
27 * There are non-Zaurus products that use these same protocols too.
28 *
29 * The annoying thing is that at the same time Sharp was developing
30 * that annoying standards-breaking software, the Linux community had
31 * a simple "CDC Subset" working reliably on the same SA-1100 hardware.
32 * That is, the same functionality but not violating standards.
33 *
34 * The CDC Ethernet nonconformance points are troublesome to hosts
35 * with a true CDC Ethernet implementation:
36 * - Framing appends a CRC, which the spec says drivers "must not" do;
37 * - Transfers data in altsetting zero, instead of altsetting 1;
38 * - All these peripherals use the same ethernet address.
39 *
40 * The CDC MDLM nonconformance is less immediately troublesome, since all
41 * MDLM implementations are quasi-proprietary anyway.
42 */
43
44static struct sk_buff *
45zaurus_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
46{
47 int padlen;
48 struct sk_buff *skb2;
49
50 padlen = 2;
51 if (!skb_cloned(skb)) {
52 int tailroom = skb_tailroom(skb);
53 if ((padlen + 4) <= tailroom)
54 goto done;
55 }
56 skb2 = skb_copy_expand(skb, 0, 4 + padlen, flags);
57 dev_kfree_skb_any(skb);
58 skb = skb2;
59 if (skb) {
60 u32 fcs;
61done:
62 fcs = crc32_le(~0, skb->data, skb->len);
63 fcs = ~fcs;
64
65 skb_put_u8(skb, fcs & 0xff);
66 skb_put_u8(skb, (fcs >> 8) & 0xff);
67 skb_put_u8(skb, (fcs >> 16) & 0xff);
68 skb_put_u8(skb, (fcs >> 24) & 0xff);
69 }
70 return skb;
71}
72
73static int zaurus_bind(struct usbnet *dev, struct usb_interface *intf)
74{
75 /* Belcarra's funky framing has other options; mostly
76 * TRAILERS (!) with 4 bytes CRC, and maybe 2 pad bytes.
77 */
78 dev->net->hard_header_len += 6;
79 dev->rx_urb_size = dev->net->hard_header_len + dev->net->mtu;
80 return usbnet_generic_cdc_bind(dev, intf);
81}
82
83/* PDA style devices are always connected if present */
84static int always_connected (struct usbnet *dev)
85{
86 return 0;
87}
88
89static const struct driver_info zaurus_sl5x00_info = {
90 .description = "Sharp Zaurus SL-5x00",
91 .flags = FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
92 .check_connect = always_connected,
93 .bind = zaurus_bind,
94 .unbind = usbnet_cdc_unbind,
95 .tx_fixup = zaurus_tx_fixup,
96};
97#define ZAURUS_STRONGARM_INFO ((unsigned long)&zaurus_sl5x00_info)
98
99static const struct driver_info zaurus_pxa_info = {
100 .description = "Sharp Zaurus, PXA-2xx based",
101 .flags = FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
102 .check_connect = always_connected,
103 .bind = zaurus_bind,
104 .unbind = usbnet_cdc_unbind,
105 .tx_fixup = zaurus_tx_fixup,
106};
107#define ZAURUS_PXA_INFO ((unsigned long)&zaurus_pxa_info)
108
109static const struct driver_info olympus_mxl_info = {
110 .description = "Olympus R1000",
111 .flags = FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
112 .check_connect = always_connected,
113 .bind = zaurus_bind,
114 .unbind = usbnet_cdc_unbind,
115 .tx_fixup = zaurus_tx_fixup,
116};
117#define OLYMPUS_MXL_INFO ((unsigned long)&olympus_mxl_info)
118
119
120/* Some more recent products using Lineo/Belcarra code will wrongly claim
121 * CDC MDLM conformance. They aren't conformant: data endpoints live
122 * in the control interface, there's no data interface, and it's not used
123 * to talk to a cell phone radio. But at least we can detect these two
124 * pseudo-classes, rather than growing this product list with entries for
125 * each new nonconformant product (sigh).
126 */
127static const u8 safe_guid[16] = {
128 0x5d, 0x34, 0xcf, 0x66, 0x11, 0x18, 0x11, 0xd6,
129 0xa2, 0x1a, 0x00, 0x01, 0x02, 0xca, 0x9a, 0x7f,
130};
131static const u8 blan_guid[16] = {
132 0x74, 0xf0, 0x3d, 0xbd, 0x1e, 0xc1, 0x44, 0x70,
133 0xa3, 0x67, 0x71, 0x34, 0xc9, 0xf5, 0x54, 0x37,
134};
135
136static int blan_mdlm_bind(struct usbnet *dev, struct usb_interface *intf)
137{
138 u8 *buf = intf->cur_altsetting->extra;
139 int len = intf->cur_altsetting->extralen;
140 struct usb_cdc_mdlm_desc *desc = NULL;
141 struct usb_cdc_mdlm_detail_desc *detail = NULL;
142
143 while (len > 3) {
144 if (buf [1] != USB_DT_CS_INTERFACE)
145 goto next_desc;
146
147 /* use bDescriptorSubType, and just verify that we get a
148 * "BLAN" (or "SAFE") descriptor.
149 */
150 switch (buf [2]) {
151 case USB_CDC_MDLM_TYPE:
152 if (desc) {
153 dev_dbg(&intf->dev, "extra MDLM\n");
154 goto bad_desc;
155 }
156 desc = (void *) buf;
157 if (desc->bLength != sizeof *desc) {
158 dev_dbg(&intf->dev, "MDLM len %u\n",
159 desc->bLength);
160 goto bad_desc;
161 }
162 /* expect bcdVersion 1.0, ignore */
163 if (memcmp(&desc->bGUID, blan_guid, 16) &&
164 memcmp(&desc->bGUID, safe_guid, 16)) {
165 /* hey, this one might _really_ be MDLM! */
166 dev_dbg(&intf->dev, "MDLM guid\n");
167 goto bad_desc;
168 }
169 break;
170 case USB_CDC_MDLM_DETAIL_TYPE:
171 if (detail) {
172 dev_dbg(&intf->dev, "extra MDLM detail\n");
173 goto bad_desc;
174 }
175 detail = (void *) buf;
176 switch (detail->bGuidDescriptorType) {
177 case 0: /* "SAFE" */
178 if (detail->bLength != (sizeof *detail + 2))
179 goto bad_detail;
180 break;
181 case 1: /* "BLAN" */
182 if (detail->bLength != (sizeof *detail + 3))
183 goto bad_detail;
184 break;
185 default:
186 goto bad_detail;
187 }
188
189 /* assuming we either noticed BLAN already, or will
190 * find it soon, there are some data bytes here:
191 * - bmNetworkCapabilities (unused)
192 * - bmDataCapabilities (bits, see below)
193 * - bPad (ignored, for PADAFTER -- BLAN-only)
194 * bits are:
195 * - 0x01 -- Zaurus framing (add CRC)
196 * - 0x02 -- PADBEFORE (CRC includes some padding)
197 * - 0x04 -- PADAFTER (some padding after CRC)
198 * - 0x08 -- "fermat" packet mangling (for hw bugs)
199 * the PADBEFORE appears not to matter; we interop
200 * with devices that use it and those that don't.
201 */
202 if ((detail->bDetailData[1] & ~0x02) != 0x01) {
203 /* bmDataCapabilities == 0 would be fine too,
204 * but framing is minidriver-coupled for now.
205 */
206bad_detail:
207 dev_dbg(&intf->dev,
208 "bad MDLM detail, %d %d %d\n",
209 detail->bLength,
210 detail->bDetailData[0],
211 detail->bDetailData[2]);
212 goto bad_desc;
213 }
214
215 /* same extra framing as for non-BLAN mode */
216 dev->net->hard_header_len += 6;
217 dev->rx_urb_size = dev->net->hard_header_len
218 + dev->net->mtu;
219 break;
220 }
221next_desc:
222 len -= buf [0]; /* bLength */
223 buf += buf [0];
224 }
225
226 if (!desc || !detail) {
227 dev_dbg(&intf->dev, "missing cdc mdlm %s%sdescriptor\n",
228 desc ? "" : "func ",
229 detail ? "" : "detail ");
230 goto bad_desc;
231 }
232
233 /* There's probably a CDC Ethernet descriptor there, but we can't
234 * rely on the Ethernet address it provides since not all vendors
235 * bother to make it unique. Likewise there's no point in tracking
236 * of the CDC event notifications.
237 */
238 return usbnet_get_endpoints(dev, intf);
239
240bad_desc:
241 dev_info(&dev->udev->dev, "unsupported MDLM descriptors\n");
242 return -ENODEV;
243}
244
245static const struct driver_info bogus_mdlm_info = {
246 .description = "pseudo-MDLM (BLAN) device",
247 .flags = FLAG_POINTTOPOINT | FLAG_FRAMING_Z,
248 .check_connect = always_connected,
249 .tx_fixup = zaurus_tx_fixup,
250 .bind = blan_mdlm_bind,
251};
252
253static const struct usb_device_id products [] = {
254#define ZAURUS_MASTER_INTERFACE \
255 .bInterfaceClass = USB_CLASS_COMM, \
256 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
257 .bInterfaceProtocol = USB_CDC_PROTO_NONE
258
259#define ZAURUS_FAKE_INTERFACE \
260 .bInterfaceClass = USB_CLASS_COMM, \
261 .bInterfaceSubClass = USB_CDC_SUBCLASS_MDLM, \
262 .bInterfaceProtocol = USB_CDC_PROTO_NONE
263
264/* SA-1100 based Sharp Zaurus ("collie"), or compatible. */
265{
266 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
267 | USB_DEVICE_ID_MATCH_DEVICE,
268 .idVendor = 0x04DD,
269 .idProduct = 0x8004,
270 ZAURUS_MASTER_INTERFACE,
271 .driver_info = ZAURUS_STRONGARM_INFO,
272},
273
274/* PXA-2xx based models are also lying-about-cdc. If you add any
275 * more devices that claim to be CDC Ethernet, make sure they get
276 * added to the blacklist in cdc_ether too.
277 *
278 * NOTE: OpenZaurus versions with 2.6 kernels won't use these entries,
279 * unlike the older ones with 2.4 "embedix" kernels.
280 */
281{
282 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
283 | USB_DEVICE_ID_MATCH_DEVICE,
284 .idVendor = 0x04DD,
285 .idProduct = 0x8005, /* A-300 */
286 ZAURUS_MASTER_INTERFACE,
287 .driver_info = ZAURUS_PXA_INFO,
288}, {
289 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
290 | USB_DEVICE_ID_MATCH_DEVICE,
291 .idVendor = 0x04DD,
292 .idProduct = 0x8006, /* B-500/SL-5600 */
293 ZAURUS_MASTER_INTERFACE,
294 .driver_info = ZAURUS_PXA_INFO,
295}, {
296 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
297 | USB_DEVICE_ID_MATCH_DEVICE,
298 .idVendor = 0x04DD,
299 .idProduct = 0x8007, /* C-700 */
300 ZAURUS_MASTER_INTERFACE,
301 .driver_info = ZAURUS_PXA_INFO,
302}, {
303 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
304 | USB_DEVICE_ID_MATCH_DEVICE,
305 .idVendor = 0x04DD,
306 .idProduct = 0x9031, /* C-750 C-760 */
307 ZAURUS_MASTER_INTERFACE,
308 .driver_info = ZAURUS_PXA_INFO,
309}, {
310 /* C-750/C-760/C-860/SL-C3000 PDA in MDLM mode */
311 USB_DEVICE_AND_INTERFACE_INFO(0x04DD, 0x9031, USB_CLASS_COMM,
312 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
313 .driver_info = (unsigned long) &bogus_mdlm_info,
314}, {
315 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
316 | USB_DEVICE_ID_MATCH_DEVICE,
317 .idVendor = 0x04DD,
318 .idProduct = 0x9032, /* SL-6000 */
319 ZAURUS_MASTER_INTERFACE,
320 .driver_info = ZAURUS_PXA_INFO,
321}, {
322 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
323 | USB_DEVICE_ID_MATCH_DEVICE,
324 .idVendor = 0x04DD,
325 .idProduct = 0x9032, /* SL-6000 */
326 ZAURUS_FAKE_INTERFACE,
327 .driver_info = (unsigned long)&bogus_mdlm_info,
328}, {
329 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
330 | USB_DEVICE_ID_MATCH_DEVICE,
331 .idVendor = 0x04DD,
332 /* reported with some C860 units */
333 .idProduct = 0x9050, /* C-860 */
334 ZAURUS_MASTER_INTERFACE,
335 .driver_info = ZAURUS_PXA_INFO,
336},
337{
338 /* Motorola Rokr E6 */
339 USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x6027, USB_CLASS_COMM,
340 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
341 .driver_info = (unsigned long) &bogus_mdlm_info,
342}, {
343 /* Motorola MOTOMAGX phones */
344 USB_DEVICE_AND_INTERFACE_INFO(0x22b8, 0x6425, USB_CLASS_COMM,
345 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
346 .driver_info = (unsigned long) &bogus_mdlm_info,
347},
348
349/* Olympus has some models with a Zaurus-compatible option.
350 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
351 */
352{
353 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
354 | USB_DEVICE_ID_MATCH_DEVICE,
355 .idVendor = 0x07B4,
356 .idProduct = 0x0F02, /* R-1000 */
357 ZAURUS_MASTER_INTERFACE,
358 .driver_info = OLYMPUS_MXL_INFO,
359},
360
361/* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */
362{
363 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM,
364 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
365 .driver_info = (unsigned long) &bogus_mdlm_info,
366},
367 { }, // END
368};
369MODULE_DEVICE_TABLE(usb, products);
370
371static struct usb_driver zaurus_driver = {
372 .name = "zaurus",
373 .id_table = products,
374 .probe = usbnet_probe,
375 .disconnect = usbnet_disconnect,
376 .suspend = usbnet_suspend,
377 .resume = usbnet_resume,
378 .disable_hub_initiated_lpm = 1,
379};
380
381module_usb_driver(zaurus_driver);
382
383MODULE_AUTHOR("Pavel Machek, David Brownell");
384MODULE_DESCRIPTION("Sharp Zaurus PDA, and compatible products");
385MODULE_LICENSE("GPL");