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1da177e4 LT |
1 | /**************************************************************** |
2 | * | |
3 | * kaweth.c - driver for KL5KUSB101 based USB->Ethernet | |
4 | * | |
5 | * (c) 2000 Interlan Communications | |
6 | * (c) 2000 Stephane Alnet | |
7 | * (C) 2001 Brad Hards | |
8 | * (C) 2002 Oliver Neukum | |
9 | * | |
10 | * Original author: The Zapman <zapman@interlan.net> | |
11 | * Inspired by, and much credit goes to Michael Rothwell | |
12 | * <rothwell@interlan.net> for the test equipment, help, and patience | |
13 | * Based off of (and with thanks to) Petko Manolov's pegaus.c driver. | |
14 | * Also many thanks to Joel Silverman and Ed Surprenant at Kawasaki | |
15 | * for providing the firmware and driver resources. | |
16 | * | |
17 | * This program is free software; you can redistribute it and/or | |
18 | * modify it under the terms of the GNU General Public License as | |
19 | * published by the Free Software Foundation; either version 2, or | |
20 | * (at your option) any later version. | |
21 | * | |
22 | * This program is distributed in the hope that it will be useful, | |
23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | * GNU General Public License for more details. | |
26 | * | |
27 | * You should have received a copy of the GNU General Public License | |
28 | * along with this program; if not, write to the Free Software Foundation, | |
29 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
30 | * | |
31 | ****************************************************************/ | |
32 | ||
33 | /* TODO: | |
34 | * Fix in_interrupt() problem | |
35 | * Develop test procedures for USB net interfaces | |
36 | * Run test procedures | |
37 | * Fix bugs from previous two steps | |
38 | * Snoop other OSs for any tricks we're not doing | |
39 | * SMP locking | |
40 | * Reduce arbitrary timeouts | |
41 | * Smart multicast support | |
42 | * Temporary MAC change support | |
43 | * Tunable SOFs parameter - ioctl()? | |
44 | * Ethernet stats collection | |
45 | * Code formatting improvements | |
46 | */ | |
47 | ||
48 | #include <linux/module.h> | |
1da177e4 LT |
49 | #include <linux/slab.h> |
50 | #include <linux/string.h> | |
51 | #include <linux/init.h> | |
52 | #include <linux/delay.h> | |
53 | #include <linux/netdevice.h> | |
54 | #include <linux/etherdevice.h> | |
55 | #include <linux/usb.h> | |
56 | #include <linux/types.h> | |
57 | #include <linux/ethtool.h> | |
1da177e4 LT |
58 | #include <linux/dma-mapping.h> |
59 | #include <linux/wait.h> | |
60 | #include <asm/uaccess.h> | |
1da177e4 LT |
61 | #include <asm/byteorder.h> |
62 | ||
63 | #undef DEBUG | |
64 | ||
1da177e4 LT |
65 | #include "kawethfw.h" |
66 | ||
67 | #define KAWETH_MTU 1514 | |
68 | #define KAWETH_BUF_SIZE 1664 | |
69 | #define KAWETH_TX_TIMEOUT (5 * HZ) | |
70 | #define KAWETH_SCRATCH_SIZE 32 | |
71 | #define KAWETH_FIRMWARE_BUF_SIZE 4096 | |
2b2b2e35 | 72 | #define KAWETH_CONTROL_TIMEOUT (30000) |
1da177e4 LT |
73 | |
74 | #define KAWETH_STATUS_BROKEN 0x0000001 | |
75 | #define KAWETH_STATUS_CLOSING 0x0000002 | |
1a2ea1df ON |
76 | #define KAWETH_STATUS_SUSPENDING 0x0000004 |
77 | ||
78 | #define KAWETH_STATUS_BLOCKED (KAWETH_STATUS_CLOSING | KAWETH_STATUS_SUSPENDING) | |
1da177e4 LT |
79 | |
80 | #define KAWETH_PACKET_FILTER_PROMISCUOUS 0x01 | |
81 | #define KAWETH_PACKET_FILTER_ALL_MULTICAST 0x02 | |
82 | #define KAWETH_PACKET_FILTER_DIRECTED 0x04 | |
83 | #define KAWETH_PACKET_FILTER_BROADCAST 0x08 | |
84 | #define KAWETH_PACKET_FILTER_MULTICAST 0x10 | |
85 | ||
86 | /* Table 7 */ | |
87 | #define KAWETH_COMMAND_GET_ETHERNET_DESC 0x00 | |
88 | #define KAWETH_COMMAND_MULTICAST_FILTERS 0x01 | |
89 | #define KAWETH_COMMAND_SET_PACKET_FILTER 0x02 | |
90 | #define KAWETH_COMMAND_STATISTICS 0x03 | |
91 | #define KAWETH_COMMAND_SET_TEMP_MAC 0x06 | |
92 | #define KAWETH_COMMAND_GET_TEMP_MAC 0x07 | |
93 | #define KAWETH_COMMAND_SET_URB_SIZE 0x08 | |
94 | #define KAWETH_COMMAND_SET_SOFS_WAIT 0x09 | |
95 | #define KAWETH_COMMAND_SCAN 0xFF | |
96 | ||
97 | #define KAWETH_SOFS_TO_WAIT 0x05 | |
98 | ||
99 | #define INTBUFFERSIZE 4 | |
100 | ||
101 | #define STATE_OFFSET 0 | |
102 | #define STATE_MASK 0x40 | |
103 | #define STATE_SHIFT 5 | |
104 | ||
1a2ea1df ON |
105 | #define IS_BLOCKED(s) (s & KAWETH_STATUS_BLOCKED) |
106 | ||
1da177e4 LT |
107 | |
108 | MODULE_AUTHOR("Michael Zappe <zapman@interlan.net>, Stephane Alnet <stephane@u-picardie.fr>, Brad Hards <bhards@bigpond.net.au> and Oliver Neukum <oliver@neukum.org>"); | |
109 | MODULE_DESCRIPTION("KL5USB101 USB Ethernet driver"); | |
110 | MODULE_LICENSE("GPL"); | |
111 | ||
112 | static const char driver_name[] = "kaweth"; | |
113 | ||
114 | static int kaweth_probe( | |
115 | struct usb_interface *intf, | |
116 | const struct usb_device_id *id /* from id_table */ | |
117 | ); | |
118 | static void kaweth_disconnect(struct usb_interface *intf); | |
119 | static int kaweth_internal_control_msg(struct usb_device *usb_dev, | |
120 | unsigned int pipe, | |
121 | struct usb_ctrlrequest *cmd, void *data, | |
122 | int len, int timeout); | |
1a2ea1df ON |
123 | static int kaweth_suspend(struct usb_interface *intf, pm_message_t message); |
124 | static int kaweth_resume(struct usb_interface *intf); | |
1da177e4 LT |
125 | |
126 | /**************************************************************** | |
127 | * usb_device_id | |
128 | ****************************************************************/ | |
129 | static struct usb_device_id usb_klsi_table[] = { | |
130 | { USB_DEVICE(0x03e8, 0x0008) }, /* AOX Endpoints USB Ethernet */ | |
131 | { USB_DEVICE(0x04bb, 0x0901) }, /* I-O DATA USB-ET/T */ | |
132 | { USB_DEVICE(0x0506, 0x03e8) }, /* 3Com 3C19250 */ | |
133 | { USB_DEVICE(0x0506, 0x11f8) }, /* 3Com 3C460 */ | |
134 | { USB_DEVICE(0x0557, 0x2002) }, /* ATEN USB Ethernet */ | |
135 | { USB_DEVICE(0x0557, 0x4000) }, /* D-Link DSB-650C */ | |
136 | { USB_DEVICE(0x0565, 0x0002) }, /* Peracom Enet */ | |
137 | { USB_DEVICE(0x0565, 0x0003) }, /* Optus@Home UEP1045A */ | |
138 | { USB_DEVICE(0x0565, 0x0005) }, /* Peracom Enet2 */ | |
139 | { USB_DEVICE(0x05e9, 0x0008) }, /* KLSI KL5KUSB101B */ | |
140 | { USB_DEVICE(0x05e9, 0x0009) }, /* KLSI KL5KUSB101B (Board change) */ | |
141 | { USB_DEVICE(0x066b, 0x2202) }, /* Linksys USB10T */ | |
142 | { USB_DEVICE(0x06e1, 0x0008) }, /* ADS USB-10BT */ | |
143 | { USB_DEVICE(0x06e1, 0x0009) }, /* ADS USB-10BT */ | |
144 | { USB_DEVICE(0x0707, 0x0100) }, /* SMC 2202USB */ | |
145 | { USB_DEVICE(0x07aa, 0x0001) }, /* Correga K.K. */ | |
146 | { USB_DEVICE(0x07b8, 0x4000) }, /* D-Link DU-E10 */ | |
147 | { USB_DEVICE(0x0846, 0x1001) }, /* NetGear EA-101 */ | |
148 | { USB_DEVICE(0x0846, 0x1002) }, /* NetGear EA-101 */ | |
149 | { USB_DEVICE(0x085a, 0x0008) }, /* PortGear Ethernet Adapter */ | |
150 | { USB_DEVICE(0x085a, 0x0009) }, /* PortGear Ethernet Adapter */ | |
151 | { USB_DEVICE(0x087d, 0x5704) }, /* Jaton USB Ethernet Device Adapter */ | |
152 | { USB_DEVICE(0x0951, 0x0008) }, /* Kingston Technology USB Ethernet Adapter */ | |
153 | { USB_DEVICE(0x095a, 0x3003) }, /* Portsmith Express Ethernet Adapter */ | |
154 | { USB_DEVICE(0x10bd, 0x1427) }, /* ASANTE USB To Ethernet Adapter */ | |
155 | { USB_DEVICE(0x1342, 0x0204) }, /* Mobility USB-Ethernet Adapter */ | |
156 | { USB_DEVICE(0x13d2, 0x0400) }, /* Shark Pocket Adapter */ | |
157 | { USB_DEVICE(0x1485, 0x0001) }, /* Silicom U2E */ | |
158 | { USB_DEVICE(0x1485, 0x0002) }, /* Psion Dacom Gold Port Ethernet */ | |
159 | { USB_DEVICE(0x1645, 0x0005) }, /* Entrega E45 */ | |
160 | { USB_DEVICE(0x1645, 0x0008) }, /* Entrega USB Ethernet Adapter */ | |
161 | { USB_DEVICE(0x1645, 0x8005) }, /* PortGear Ethernet Adapter */ | |
486ba2a9 | 162 | { USB_DEVICE(0x1668, 0x0323) }, /* Actiontec USB Ethernet */ |
1da177e4 LT |
163 | { USB_DEVICE(0x2001, 0x4000) }, /* D-link DSB-650C */ |
164 | {} /* Null terminator */ | |
165 | }; | |
166 | ||
167 | MODULE_DEVICE_TABLE (usb, usb_klsi_table); | |
168 | ||
169 | /**************************************************************** | |
170 | * kaweth_driver | |
171 | ****************************************************************/ | |
172 | static struct usb_driver kaweth_driver = { | |
1da177e4 LT |
173 | .name = driver_name, |
174 | .probe = kaweth_probe, | |
175 | .disconnect = kaweth_disconnect, | |
1a2ea1df ON |
176 | .suspend = kaweth_suspend, |
177 | .resume = kaweth_resume, | |
1da177e4 | 178 | .id_table = usb_klsi_table, |
b98b98f9 | 179 | .supports_autosuspend = 1, |
1da177e4 LT |
180 | }; |
181 | ||
182 | typedef __u8 eth_addr_t[6]; | |
183 | ||
184 | /**************************************************************** | |
185 | * usb_eth_dev | |
186 | ****************************************************************/ | |
187 | struct usb_eth_dev { | |
188 | char *name; | |
189 | __u16 vendor; | |
190 | __u16 device; | |
191 | void *pdata; | |
192 | }; | |
193 | ||
194 | /**************************************************************** | |
195 | * kaweth_ethernet_configuration | |
196 | * Refer Table 8 | |
197 | ****************************************************************/ | |
198 | struct kaweth_ethernet_configuration | |
199 | { | |
200 | __u8 size; | |
201 | __u8 reserved1; | |
202 | __u8 reserved2; | |
203 | eth_addr_t hw_addr; | |
204 | __u32 statistics_mask; | |
205 | __le16 segment_size; | |
206 | __u16 max_multicast_filters; | |
207 | __u8 reserved3; | |
208 | } __attribute__ ((packed)); | |
209 | ||
210 | /**************************************************************** | |
211 | * kaweth_device | |
212 | ****************************************************************/ | |
213 | struct kaweth_device | |
214 | { | |
215 | spinlock_t device_lock; | |
216 | ||
217 | __u32 status; | |
218 | int end; | |
1da177e4 LT |
219 | int suspend_lowmem_rx; |
220 | int suspend_lowmem_ctrl; | |
221 | int linkstate; | |
1a2ea1df | 222 | int opened; |
c4028958 | 223 | struct delayed_work lowmem_work; |
1da177e4 LT |
224 | |
225 | struct usb_device *dev; | |
b98b98f9 | 226 | struct usb_interface *intf; |
1da177e4 LT |
227 | struct net_device *net; |
228 | wait_queue_head_t term_wait; | |
229 | ||
230 | struct urb *rx_urb; | |
231 | struct urb *tx_urb; | |
232 | struct urb *irq_urb; | |
233 | ||
234 | dma_addr_t intbufferhandle; | |
235 | __u8 *intbuffer; | |
236 | dma_addr_t rxbufferhandle; | |
237 | __u8 *rx_buf; | |
238 | ||
239 | ||
240 | struct sk_buff *tx_skb; | |
241 | ||
242 | __u8 *firmware_buf; | |
243 | __u8 scratch[KAWETH_SCRATCH_SIZE]; | |
244 | __u16 packet_filter_bitmap; | |
245 | ||
246 | struct kaweth_ethernet_configuration configuration; | |
247 | ||
248 | struct net_device_stats stats; | |
249 | }; | |
250 | ||
251 | ||
252 | /**************************************************************** | |
253 | * kaweth_control | |
254 | ****************************************************************/ | |
255 | static int kaweth_control(struct kaweth_device *kaweth, | |
256 | unsigned int pipe, | |
257 | __u8 request, | |
258 | __u8 requesttype, | |
259 | __u16 value, | |
260 | __u16 index, | |
261 | void *data, | |
262 | __u16 size, | |
263 | int timeout) | |
264 | { | |
265 | struct usb_ctrlrequest *dr; | |
266 | ||
fbe2bafc | 267 | dbg("kaweth_control()"); |
1da177e4 LT |
268 | |
269 | if(in_interrupt()) { | |
fbe2bafc | 270 | dbg("in_interrupt()"); |
1da177e4 LT |
271 | return -EBUSY; |
272 | } | |
273 | ||
274 | dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC); | |
275 | ||
276 | if (!dr) { | |
fbe2bafc | 277 | dbg("kmalloc() failed"); |
1da177e4 LT |
278 | return -ENOMEM; |
279 | } | |
280 | ||
281 | dr->bRequestType= requesttype; | |
282 | dr->bRequest = request; | |
283 | dr->wValue = cpu_to_le16p(&value); | |
284 | dr->wIndex = cpu_to_le16p(&index); | |
285 | dr->wLength = cpu_to_le16p(&size); | |
286 | ||
287 | return kaweth_internal_control_msg(kaweth->dev, | |
288 | pipe, | |
289 | dr, | |
290 | data, | |
291 | size, | |
292 | timeout); | |
293 | } | |
294 | ||
295 | /**************************************************************** | |
296 | * kaweth_read_configuration | |
297 | ****************************************************************/ | |
298 | static int kaweth_read_configuration(struct kaweth_device *kaweth) | |
299 | { | |
300 | int retval; | |
301 | ||
fbe2bafc | 302 | dbg("Reading kaweth configuration"); |
1da177e4 LT |
303 | |
304 | retval = kaweth_control(kaweth, | |
305 | usb_rcvctrlpipe(kaweth->dev, 0), | |
306 | KAWETH_COMMAND_GET_ETHERNET_DESC, | |
307 | USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE, | |
308 | 0, | |
309 | 0, | |
310 | (void *)&kaweth->configuration, | |
311 | sizeof(kaweth->configuration), | |
312 | KAWETH_CONTROL_TIMEOUT); | |
313 | ||
314 | return retval; | |
315 | } | |
316 | ||
317 | /**************************************************************** | |
318 | * kaweth_set_urb_size | |
319 | ****************************************************************/ | |
320 | static int kaweth_set_urb_size(struct kaweth_device *kaweth, __u16 urb_size) | |
321 | { | |
322 | int retval; | |
323 | ||
fbe2bafc | 324 | dbg("Setting URB size to %d", (unsigned)urb_size); |
1da177e4 LT |
325 | |
326 | retval = kaweth_control(kaweth, | |
327 | usb_sndctrlpipe(kaweth->dev, 0), | |
328 | KAWETH_COMMAND_SET_URB_SIZE, | |
329 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
330 | urb_size, | |
331 | 0, | |
332 | (void *)&kaweth->scratch, | |
333 | 0, | |
334 | KAWETH_CONTROL_TIMEOUT); | |
335 | ||
336 | return retval; | |
337 | } | |
338 | ||
339 | /**************************************************************** | |
340 | * kaweth_set_sofs_wait | |
341 | ****************************************************************/ | |
342 | static int kaweth_set_sofs_wait(struct kaweth_device *kaweth, __u16 sofs_wait) | |
343 | { | |
344 | int retval; | |
345 | ||
fbe2bafc | 346 | dbg("Set SOFS wait to %d", (unsigned)sofs_wait); |
1da177e4 LT |
347 | |
348 | retval = kaweth_control(kaweth, | |
349 | usb_sndctrlpipe(kaweth->dev, 0), | |
350 | KAWETH_COMMAND_SET_SOFS_WAIT, | |
351 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
352 | sofs_wait, | |
353 | 0, | |
354 | (void *)&kaweth->scratch, | |
355 | 0, | |
356 | KAWETH_CONTROL_TIMEOUT); | |
357 | ||
358 | return retval; | |
359 | } | |
360 | ||
361 | /**************************************************************** | |
362 | * kaweth_set_receive_filter | |
363 | ****************************************************************/ | |
364 | static int kaweth_set_receive_filter(struct kaweth_device *kaweth, | |
365 | __u16 receive_filter) | |
366 | { | |
367 | int retval; | |
368 | ||
fbe2bafc | 369 | dbg("Set receive filter to %d", (unsigned)receive_filter); |
1da177e4 LT |
370 | |
371 | retval = kaweth_control(kaweth, | |
372 | usb_sndctrlpipe(kaweth->dev, 0), | |
373 | KAWETH_COMMAND_SET_PACKET_FILTER, | |
374 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
375 | receive_filter, | |
376 | 0, | |
377 | (void *)&kaweth->scratch, | |
378 | 0, | |
379 | KAWETH_CONTROL_TIMEOUT); | |
380 | ||
381 | return retval; | |
382 | } | |
383 | ||
384 | /**************************************************************** | |
385 | * kaweth_download_firmware | |
386 | ****************************************************************/ | |
387 | static int kaweth_download_firmware(struct kaweth_device *kaweth, | |
388 | __u8 *data, | |
389 | __u16 data_len, | |
390 | __u8 interrupt, | |
391 | __u8 type) | |
392 | { | |
393 | if(data_len > KAWETH_FIRMWARE_BUF_SIZE) { | |
fbe2bafc | 394 | err("Firmware too big: %d", data_len); |
1da177e4 LT |
395 | return -ENOSPC; |
396 | } | |
397 | ||
398 | memcpy(kaweth->firmware_buf, data, data_len); | |
399 | ||
400 | kaweth->firmware_buf[2] = (data_len & 0xFF) - 7; | |
401 | kaweth->firmware_buf[3] = data_len >> 8; | |
402 | kaweth->firmware_buf[4] = type; | |
403 | kaweth->firmware_buf[5] = interrupt; | |
404 | ||
fbe2bafc | 405 | dbg("High: %i, Low:%i", kaweth->firmware_buf[3], |
1da177e4 LT |
406 | kaweth->firmware_buf[2]); |
407 | ||
fbe2bafc | 408 | dbg("Downloading firmware at %p to kaweth device at %p", |
1da177e4 LT |
409 | data, |
410 | kaweth); | |
fbe2bafc | 411 | dbg("Firmware length: %d", data_len); |
1da177e4 LT |
412 | |
413 | return kaweth_control(kaweth, | |
414 | usb_sndctrlpipe(kaweth->dev, 0), | |
415 | KAWETH_COMMAND_SCAN, | |
416 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
417 | 0, | |
418 | 0, | |
419 | (void *)kaweth->firmware_buf, | |
420 | data_len, | |
421 | KAWETH_CONTROL_TIMEOUT); | |
422 | } | |
423 | ||
424 | /**************************************************************** | |
425 | * kaweth_trigger_firmware | |
426 | ****************************************************************/ | |
427 | static int kaweth_trigger_firmware(struct kaweth_device *kaweth, | |
428 | __u8 interrupt) | |
429 | { | |
430 | kaweth->firmware_buf[0] = 0xB6; | |
431 | kaweth->firmware_buf[1] = 0xC3; | |
432 | kaweth->firmware_buf[2] = 0x01; | |
433 | kaweth->firmware_buf[3] = 0x00; | |
434 | kaweth->firmware_buf[4] = 0x06; | |
435 | kaweth->firmware_buf[5] = interrupt; | |
436 | kaweth->firmware_buf[6] = 0x00; | |
437 | kaweth->firmware_buf[7] = 0x00; | |
438 | ||
fbe2bafc | 439 | dbg("Triggering firmware"); |
1da177e4 LT |
440 | |
441 | return kaweth_control(kaweth, | |
442 | usb_sndctrlpipe(kaweth->dev, 0), | |
443 | KAWETH_COMMAND_SCAN, | |
444 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
445 | 0, | |
446 | 0, | |
447 | (void *)kaweth->firmware_buf, | |
448 | 8, | |
449 | KAWETH_CONTROL_TIMEOUT); | |
450 | } | |
451 | ||
452 | /**************************************************************** | |
453 | * kaweth_reset | |
454 | ****************************************************************/ | |
455 | static int kaweth_reset(struct kaweth_device *kaweth) | |
456 | { | |
457 | int result; | |
458 | ||
fbe2bafc | 459 | dbg("kaweth_reset(%p)", kaweth); |
1da177e4 LT |
460 | result = kaweth_control(kaweth, |
461 | usb_sndctrlpipe(kaweth->dev, 0), | |
462 | USB_REQ_SET_CONFIGURATION, | |
463 | 0, | |
464 | kaweth->dev->config[0].desc.bConfigurationValue, | |
465 | 0, | |
466 | NULL, | |
467 | 0, | |
468 | KAWETH_CONTROL_TIMEOUT); | |
469 | ||
f2d45cd9 | 470 | mdelay(10); |
1da177e4 | 471 | |
fbe2bafc | 472 | dbg("kaweth_reset() returns %d.",result); |
1da177e4 LT |
473 | |
474 | return result; | |
475 | } | |
476 | ||
7d12e780 | 477 | static void kaweth_usb_receive(struct urb *); |
55016f10 | 478 | static int kaweth_resubmit_rx_urb(struct kaweth_device *, gfp_t); |
1da177e4 LT |
479 | |
480 | /**************************************************************** | |
481 | int_callback | |
482 | *****************************************************************/ | |
483 | ||
55016f10 | 484 | static void kaweth_resubmit_int_urb(struct kaweth_device *kaweth, gfp_t mf) |
1da177e4 LT |
485 | { |
486 | int status; | |
487 | ||
488 | status = usb_submit_urb (kaweth->irq_urb, mf); | |
489 | if (unlikely(status == -ENOMEM)) { | |
490 | kaweth->suspend_lowmem_ctrl = 1; | |
491 | schedule_delayed_work(&kaweth->lowmem_work, HZ/4); | |
492 | } else { | |
493 | kaweth->suspend_lowmem_ctrl = 0; | |
494 | } | |
495 | ||
496 | if (status) | |
497 | err ("can't resubmit intr, %s-%s, status %d", | |
498 | kaweth->dev->bus->bus_name, | |
499 | kaweth->dev->devpath, status); | |
500 | } | |
501 | ||
7d12e780 | 502 | static void int_callback(struct urb *u) |
1da177e4 LT |
503 | { |
504 | struct kaweth_device *kaweth = u->context; | |
505 | int act_state; | |
506 | ||
507 | switch (u->status) { | |
508 | case 0: /* success */ | |
509 | break; | |
510 | case -ECONNRESET: /* unlink */ | |
511 | case -ENOENT: | |
512 | case -ESHUTDOWN: | |
513 | return; | |
514 | /* -EPIPE: should clear the halt */ | |
515 | default: /* error */ | |
516 | goto resubmit; | |
517 | } | |
518 | ||
519 | /* we check the link state to report changes */ | |
520 | if (kaweth->linkstate != (act_state = ( kaweth->intbuffer[STATE_OFFSET] | STATE_MASK) >> STATE_SHIFT)) { | |
58125f95 | 521 | if (act_state) |
1da177e4 LT |
522 | netif_carrier_on(kaweth->net); |
523 | else | |
524 | netif_carrier_off(kaweth->net); | |
525 | ||
526 | kaweth->linkstate = act_state; | |
527 | } | |
528 | resubmit: | |
529 | kaweth_resubmit_int_urb(kaweth, GFP_ATOMIC); | |
530 | } | |
531 | ||
c4028958 | 532 | static void kaweth_resubmit_tl(struct work_struct *work) |
1da177e4 | 533 | { |
c4028958 DH |
534 | struct kaweth_device *kaweth = |
535 | container_of(work, struct kaweth_device, lowmem_work.work); | |
1da177e4 | 536 | |
1a2ea1df | 537 | if (IS_BLOCKED(kaweth->status)) |
1da177e4 LT |
538 | return; |
539 | ||
540 | if (kaweth->suspend_lowmem_rx) | |
541 | kaweth_resubmit_rx_urb(kaweth, GFP_NOIO); | |
542 | ||
543 | if (kaweth->suspend_lowmem_ctrl) | |
544 | kaweth_resubmit_int_urb(kaweth, GFP_NOIO); | |
545 | } | |
546 | ||
547 | ||
548 | /**************************************************************** | |
549 | * kaweth_resubmit_rx_urb | |
550 | ****************************************************************/ | |
551 | static int kaweth_resubmit_rx_urb(struct kaweth_device *kaweth, | |
55016f10 | 552 | gfp_t mem_flags) |
1da177e4 LT |
553 | { |
554 | int result; | |
555 | ||
556 | usb_fill_bulk_urb(kaweth->rx_urb, | |
557 | kaweth->dev, | |
558 | usb_rcvbulkpipe(kaweth->dev, 1), | |
559 | kaweth->rx_buf, | |
560 | KAWETH_BUF_SIZE, | |
561 | kaweth_usb_receive, | |
562 | kaweth); | |
563 | kaweth->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
564 | kaweth->rx_urb->transfer_dma = kaweth->rxbufferhandle; | |
565 | ||
566 | if((result = usb_submit_urb(kaweth->rx_urb, mem_flags))) { | |
567 | if (result == -ENOMEM) { | |
568 | kaweth->suspend_lowmem_rx = 1; | |
569 | schedule_delayed_work(&kaweth->lowmem_work, HZ/4); | |
570 | } | |
fbe2bafc | 571 | err("resubmitting rx_urb %d failed", result); |
1da177e4 LT |
572 | } else { |
573 | kaweth->suspend_lowmem_rx = 0; | |
574 | } | |
575 | ||
576 | return result; | |
577 | } | |
578 | ||
579 | static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth); | |
580 | ||
581 | /**************************************************************** | |
582 | * kaweth_usb_receive | |
583 | ****************************************************************/ | |
7d12e780 | 584 | static void kaweth_usb_receive(struct urb *urb) |
1da177e4 LT |
585 | { |
586 | struct kaweth_device *kaweth = urb->context; | |
587 | struct net_device *net = kaweth->net; | |
588 | ||
589 | int count = urb->actual_length; | |
590 | int count2 = urb->transfer_buffer_length; | |
591 | ||
592 | __u16 pkt_len = le16_to_cpup((__le16 *)kaweth->rx_buf); | |
593 | ||
594 | struct sk_buff *skb; | |
595 | ||
596 | if(unlikely(urb->status == -ECONNRESET || urb->status == -ESHUTDOWN)) | |
597 | /* we are killed - set a flag and wake the disconnect handler */ | |
598 | { | |
599 | kaweth->end = 1; | |
600 | wake_up(&kaweth->term_wait); | |
601 | return; | |
602 | } | |
603 | ||
1a2ea1df ON |
604 | spin_lock(&kaweth->device_lock); |
605 | if (IS_BLOCKED(kaweth->status)) { | |
606 | spin_unlock(&kaweth->device_lock); | |
1da177e4 | 607 | return; |
1a2ea1df ON |
608 | } |
609 | spin_unlock(&kaweth->device_lock); | |
1da177e4 LT |
610 | |
611 | if(urb->status && urb->status != -EREMOTEIO && count != 1) { | |
fbe2bafc | 612 | err("%s RX status: %d count: %d packet_len: %d", |
1da177e4 LT |
613 | net->name, |
614 | urb->status, | |
615 | count, | |
616 | (int)pkt_len); | |
617 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | |
618 | return; | |
619 | } | |
620 | ||
621 | if(kaweth->net && (count > 2)) { | |
622 | if(pkt_len > (count - 2)) { | |
fbe2bafc ON |
623 | err("Packet length too long for USB frame (pkt_len: %x, count: %x)",pkt_len, count); |
624 | err("Packet len & 2047: %x", pkt_len & 2047); | |
625 | err("Count 2: %x", count2); | |
1da177e4 LT |
626 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); |
627 | return; | |
628 | } | |
629 | ||
630 | if(!(skb = dev_alloc_skb(pkt_len+2))) { | |
631 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | |
632 | return; | |
633 | } | |
634 | ||
635 | skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */ | |
636 | ||
8c7b7faa | 637 | skb_copy_to_linear_data(skb, kaweth->rx_buf + 2, pkt_len); |
1da177e4 LT |
638 | |
639 | skb_put(skb, pkt_len); | |
640 | ||
641 | skb->protocol = eth_type_trans(skb, net); | |
642 | ||
643 | netif_rx(skb); | |
644 | ||
645 | kaweth->stats.rx_packets++; | |
646 | kaweth->stats.rx_bytes += pkt_len; | |
647 | } | |
648 | ||
649 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | |
650 | } | |
651 | ||
652 | /**************************************************************** | |
653 | * kaweth_open | |
654 | ****************************************************************/ | |
655 | static int kaweth_open(struct net_device *net) | |
656 | { | |
657 | struct kaweth_device *kaweth = netdev_priv(net); | |
658 | int res; | |
659 | ||
fbe2bafc | 660 | dbg("Opening network device."); |
1da177e4 | 661 | |
b98b98f9 ON |
662 | res = usb_autopm_get_interface(kaweth->intf); |
663 | if (res) { | |
664 | err("Interface cannot be resumed."); | |
665 | return -EIO; | |
666 | } | |
1da177e4 LT |
667 | res = kaweth_resubmit_rx_urb(kaweth, GFP_KERNEL); |
668 | if (res) | |
b98b98f9 | 669 | goto err_out; |
1da177e4 LT |
670 | |
671 | usb_fill_int_urb( | |
672 | kaweth->irq_urb, | |
673 | kaweth->dev, | |
674 | usb_rcvintpipe(kaweth->dev, 3), | |
675 | kaweth->intbuffer, | |
676 | INTBUFFERSIZE, | |
677 | int_callback, | |
678 | kaweth, | |
679 | 250); /* overriding the descriptor */ | |
680 | kaweth->irq_urb->transfer_dma = kaweth->intbufferhandle; | |
681 | kaweth->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
682 | ||
683 | res = usb_submit_urb(kaweth->irq_urb, GFP_KERNEL); | |
684 | if (res) { | |
685 | usb_kill_urb(kaweth->rx_urb); | |
b98b98f9 | 686 | goto err_out; |
1da177e4 | 687 | } |
1a2ea1df | 688 | kaweth->opened = 1; |
1da177e4 LT |
689 | |
690 | netif_start_queue(net); | |
691 | ||
692 | kaweth_async_set_rx_mode(kaweth); | |
693 | return 0; | |
b98b98f9 ON |
694 | |
695 | err_out: | |
696 | usb_autopm_enable(kaweth->intf); | |
697 | return -EIO; | |
1da177e4 LT |
698 | } |
699 | ||
700 | /**************************************************************** | |
b98b98f9 | 701 | * kaweth_kill_urbs |
1da177e4 | 702 | ****************************************************************/ |
1a2ea1df | 703 | static void kaweth_kill_urbs(struct kaweth_device *kaweth) |
1da177e4 | 704 | { |
1da177e4 LT |
705 | usb_kill_urb(kaweth->irq_urb); |
706 | usb_kill_urb(kaweth->rx_urb); | |
d23b536b | 707 | usb_kill_urb(kaweth->tx_urb); |
1da177e4 | 708 | |
4bb073c0 | 709 | cancel_delayed_work_sync(&kaweth->lowmem_work); |
1da177e4 LT |
710 | |
711 | /* a scheduled work may have resubmitted, | |
712 | we hit them again */ | |
713 | usb_kill_urb(kaweth->irq_urb); | |
714 | usb_kill_urb(kaweth->rx_urb); | |
1a2ea1df ON |
715 | } |
716 | ||
717 | /**************************************************************** | |
718 | * kaweth_close | |
719 | ****************************************************************/ | |
720 | static int kaweth_close(struct net_device *net) | |
721 | { | |
722 | struct kaweth_device *kaweth = netdev_priv(net); | |
723 | ||
724 | netif_stop_queue(net); | |
725 | kaweth->opened = 0; | |
726 | ||
727 | kaweth->status |= KAWETH_STATUS_CLOSING; | |
728 | ||
729 | kaweth_kill_urbs(kaweth); | |
1da177e4 LT |
730 | |
731 | kaweth->status &= ~KAWETH_STATUS_CLOSING; | |
732 | ||
b98b98f9 ON |
733 | usb_autopm_enable(kaweth->intf); |
734 | ||
1da177e4 LT |
735 | return 0; |
736 | } | |
737 | ||
738 | static void kaweth_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) | |
739 | { | |
b3ebd522 | 740 | struct kaweth_device *kaweth = netdev_priv(dev); |
1da177e4 LT |
741 | |
742 | strlcpy(info->driver, driver_name, sizeof(info->driver)); | |
b3ebd522 ON |
743 | usb_make_path(kaweth->dev, info->bus_info, sizeof (info->bus_info)); |
744 | } | |
745 | ||
746 | static u32 kaweth_get_link(struct net_device *dev) | |
747 | { | |
748 | struct kaweth_device *kaweth = netdev_priv(dev); | |
749 | ||
750 | return kaweth->linkstate; | |
1da177e4 LT |
751 | } |
752 | ||
753 | static struct ethtool_ops ops = { | |
b3ebd522 ON |
754 | .get_drvinfo = kaweth_get_drvinfo, |
755 | .get_link = kaweth_get_link | |
1da177e4 LT |
756 | }; |
757 | ||
758 | /**************************************************************** | |
759 | * kaweth_usb_transmit_complete | |
760 | ****************************************************************/ | |
7d12e780 | 761 | static void kaweth_usb_transmit_complete(struct urb *urb) |
1da177e4 LT |
762 | { |
763 | struct kaweth_device *kaweth = urb->context; | |
764 | struct sk_buff *skb = kaweth->tx_skb; | |
765 | ||
766 | if (unlikely(urb->status != 0)) | |
767 | if (urb->status != -ENOENT) | |
fbe2bafc | 768 | dbg("%s: TX status %d.", kaweth->net->name, urb->status); |
1da177e4 LT |
769 | |
770 | netif_wake_queue(kaweth->net); | |
771 | dev_kfree_skb_irq(skb); | |
772 | } | |
773 | ||
774 | /**************************************************************** | |
775 | * kaweth_start_xmit | |
776 | ****************************************************************/ | |
777 | static int kaweth_start_xmit(struct sk_buff *skb, struct net_device *net) | |
778 | { | |
779 | struct kaweth_device *kaweth = netdev_priv(net); | |
780 | __le16 *private_header; | |
781 | ||
782 | int res; | |
783 | ||
784 | spin_lock(&kaweth->device_lock); | |
785 | ||
1da177e4 LT |
786 | kaweth_async_set_rx_mode(kaweth); |
787 | netif_stop_queue(net); | |
1a2ea1df ON |
788 | if (IS_BLOCKED(kaweth->status)) { |
789 | goto skip; | |
790 | } | |
1da177e4 LT |
791 | |
792 | /* We now decide whether we can put our special header into the sk_buff */ | |
793 | if (skb_cloned(skb) || skb_headroom(skb) < 2) { | |
794 | /* no such luck - we make our own */ | |
795 | struct sk_buff *copied_skb; | |
796 | copied_skb = skb_copy_expand(skb, 2, 0, GFP_ATOMIC); | |
797 | dev_kfree_skb_irq(skb); | |
798 | skb = copied_skb; | |
799 | if (!copied_skb) { | |
800 | kaweth->stats.tx_errors++; | |
801 | netif_start_queue(net); | |
802 | spin_unlock(&kaweth->device_lock); | |
803 | return 0; | |
804 | } | |
805 | } | |
806 | ||
807 | private_header = (__le16 *)__skb_push(skb, 2); | |
808 | *private_header = cpu_to_le16(skb->len-2); | |
809 | kaweth->tx_skb = skb; | |
810 | ||
811 | usb_fill_bulk_urb(kaweth->tx_urb, | |
812 | kaweth->dev, | |
813 | usb_sndbulkpipe(kaweth->dev, 2), | |
814 | private_header, | |
815 | skb->len, | |
816 | kaweth_usb_transmit_complete, | |
817 | kaweth); | |
818 | kaweth->end = 0; | |
1da177e4 LT |
819 | |
820 | if((res = usb_submit_urb(kaweth->tx_urb, GFP_ATOMIC))) | |
821 | { | |
fbe2bafc | 822 | warn("kaweth failed tx_urb %d", res); |
1a2ea1df | 823 | skip: |
1da177e4 LT |
824 | kaweth->stats.tx_errors++; |
825 | ||
826 | netif_start_queue(net); | |
827 | dev_kfree_skb_irq(skb); | |
828 | } | |
829 | else | |
830 | { | |
831 | kaweth->stats.tx_packets++; | |
832 | kaweth->stats.tx_bytes += skb->len; | |
833 | net->trans_start = jiffies; | |
834 | } | |
835 | ||
836 | spin_unlock(&kaweth->device_lock); | |
837 | ||
838 | return 0; | |
839 | } | |
840 | ||
841 | /**************************************************************** | |
842 | * kaweth_set_rx_mode | |
843 | ****************************************************************/ | |
844 | static void kaweth_set_rx_mode(struct net_device *net) | |
845 | { | |
846 | struct kaweth_device *kaweth = netdev_priv(net); | |
847 | ||
848 | __u16 packet_filter_bitmap = KAWETH_PACKET_FILTER_DIRECTED | | |
849 | KAWETH_PACKET_FILTER_BROADCAST | | |
850 | KAWETH_PACKET_FILTER_MULTICAST; | |
851 | ||
fbe2bafc | 852 | dbg("Setting Rx mode to %d", packet_filter_bitmap); |
1da177e4 LT |
853 | |
854 | netif_stop_queue(net); | |
855 | ||
856 | if (net->flags & IFF_PROMISC) { | |
857 | packet_filter_bitmap |= KAWETH_PACKET_FILTER_PROMISCUOUS; | |
858 | } | |
859 | else if ((net->mc_count) || (net->flags & IFF_ALLMULTI)) { | |
860 | packet_filter_bitmap |= KAWETH_PACKET_FILTER_ALL_MULTICAST; | |
861 | } | |
862 | ||
863 | kaweth->packet_filter_bitmap = packet_filter_bitmap; | |
864 | netif_wake_queue(net); | |
865 | } | |
866 | ||
867 | /**************************************************************** | |
868 | * kaweth_async_set_rx_mode | |
869 | ****************************************************************/ | |
870 | static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth) | |
871 | { | |
872 | __u16 packet_filter_bitmap = kaweth->packet_filter_bitmap; | |
873 | kaweth->packet_filter_bitmap = 0; | |
874 | if (packet_filter_bitmap == 0) | |
875 | return; | |
876 | ||
877 | { | |
878 | int result; | |
879 | result = kaweth_control(kaweth, | |
880 | usb_sndctrlpipe(kaweth->dev, 0), | |
881 | KAWETH_COMMAND_SET_PACKET_FILTER, | |
882 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
883 | packet_filter_bitmap, | |
884 | 0, | |
885 | (void *)&kaweth->scratch, | |
886 | 0, | |
887 | KAWETH_CONTROL_TIMEOUT); | |
888 | ||
889 | if(result < 0) { | |
fbe2bafc | 890 | err("Failed to set Rx mode: %d", result); |
1da177e4 LT |
891 | } |
892 | else { | |
fbe2bafc | 893 | dbg("Set Rx mode to %d", packet_filter_bitmap); |
1da177e4 LT |
894 | } |
895 | } | |
896 | } | |
897 | ||
898 | /**************************************************************** | |
899 | * kaweth_netdev_stats | |
900 | ****************************************************************/ | |
901 | static struct net_device_stats *kaweth_netdev_stats(struct net_device *dev) | |
902 | { | |
903 | struct kaweth_device *kaweth = netdev_priv(dev); | |
904 | return &kaweth->stats; | |
905 | } | |
906 | ||
907 | /**************************************************************** | |
908 | * kaweth_tx_timeout | |
909 | ****************************************************************/ | |
910 | static void kaweth_tx_timeout(struct net_device *net) | |
911 | { | |
912 | struct kaweth_device *kaweth = netdev_priv(net); | |
913 | ||
fbe2bafc | 914 | warn("%s: Tx timed out. Resetting.", net->name); |
1da177e4 LT |
915 | kaweth->stats.tx_errors++; |
916 | net->trans_start = jiffies; | |
917 | ||
918 | usb_unlink_urb(kaweth->tx_urb); | |
919 | } | |
920 | ||
1a2ea1df ON |
921 | /**************************************************************** |
922 | * kaweth_suspend | |
923 | ****************************************************************/ | |
924 | static int kaweth_suspend(struct usb_interface *intf, pm_message_t message) | |
925 | { | |
926 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
927 | unsigned long flags; | |
928 | ||
b98b98f9 | 929 | dbg("Suspending device"); |
1a2ea1df ON |
930 | spin_lock_irqsave(&kaweth->device_lock, flags); |
931 | kaweth->status |= KAWETH_STATUS_SUSPENDING; | |
932 | spin_unlock_irqrestore(&kaweth->device_lock, flags); | |
933 | ||
934 | kaweth_kill_urbs(kaweth); | |
935 | return 0; | |
936 | } | |
937 | ||
938 | /**************************************************************** | |
939 | * kaweth_resume | |
940 | ****************************************************************/ | |
941 | static int kaweth_resume(struct usb_interface *intf) | |
942 | { | |
943 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
944 | unsigned long flags; | |
945 | ||
b98b98f9 | 946 | dbg("Resuming device"); |
1a2ea1df ON |
947 | spin_lock_irqsave(&kaweth->device_lock, flags); |
948 | kaweth->status &= ~KAWETH_STATUS_SUSPENDING; | |
949 | spin_unlock_irqrestore(&kaweth->device_lock, flags); | |
950 | ||
951 | if (!kaweth->opened) | |
952 | return 0; | |
953 | kaweth_resubmit_rx_urb(kaweth, GFP_NOIO); | |
954 | kaweth_resubmit_int_urb(kaweth, GFP_NOIO); | |
955 | ||
956 | return 0; | |
957 | } | |
958 | ||
1da177e4 LT |
959 | /**************************************************************** |
960 | * kaweth_probe | |
961 | ****************************************************************/ | |
962 | static int kaweth_probe( | |
963 | struct usb_interface *intf, | |
964 | const struct usb_device_id *id /* from id_table */ | |
965 | ) | |
966 | { | |
967 | struct usb_device *dev = interface_to_usbdev(intf); | |
968 | struct kaweth_device *kaweth; | |
969 | struct net_device *netdev; | |
970 | const eth_addr_t bcast_addr = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; | |
971 | int result = 0; | |
972 | ||
fbe2bafc | 973 | dbg("Kawasaki Device Probe (Device number:%d): 0x%4.4x:0x%4.4x:0x%4.4x", |
1da177e4 LT |
974 | dev->devnum, |
975 | le16_to_cpu(dev->descriptor.idVendor), | |
976 | le16_to_cpu(dev->descriptor.idProduct), | |
977 | le16_to_cpu(dev->descriptor.bcdDevice)); | |
978 | ||
fbe2bafc | 979 | dbg("Device at %p", dev); |
1da177e4 | 980 | |
fbe2bafc | 981 | dbg("Descriptor length: %x type: %x", |
1da177e4 LT |
982 | (int)dev->descriptor.bLength, |
983 | (int)dev->descriptor.bDescriptorType); | |
984 | ||
985 | netdev = alloc_etherdev(sizeof(*kaweth)); | |
986 | if (!netdev) | |
987 | return -ENOMEM; | |
988 | ||
989 | kaweth = netdev_priv(netdev); | |
990 | kaweth->dev = dev; | |
991 | kaweth->net = netdev; | |
992 | ||
993 | spin_lock_init(&kaweth->device_lock); | |
994 | init_waitqueue_head(&kaweth->term_wait); | |
995 | ||
fbe2bafc | 996 | dbg("Resetting."); |
1da177e4 LT |
997 | |
998 | kaweth_reset(kaweth); | |
999 | ||
1000 | /* | |
1001 | * If high byte of bcdDevice is nonzero, firmware is already | |
1002 | * downloaded. Don't try to do it again, or we'll hang the device. | |
1003 | */ | |
1004 | ||
1005 | if (le16_to_cpu(dev->descriptor.bcdDevice) >> 8) { | |
fbe2bafc | 1006 | info("Firmware present in device."); |
1da177e4 LT |
1007 | } else { |
1008 | /* Download the firmware */ | |
fbe2bafc | 1009 | info("Downloading firmware..."); |
1da177e4 LT |
1010 | kaweth->firmware_buf = (__u8 *)__get_free_page(GFP_KERNEL); |
1011 | if ((result = kaweth_download_firmware(kaweth, | |
1012 | kaweth_new_code, | |
1013 | len_kaweth_new_code, | |
1014 | 100, | |
1015 | 2)) < 0) { | |
fbe2bafc | 1016 | err("Error downloading firmware (%d)", result); |
1da177e4 LT |
1017 | goto err_fw; |
1018 | } | |
1019 | ||
1020 | if ((result = kaweth_download_firmware(kaweth, | |
1021 | kaweth_new_code_fix, | |
1022 | len_kaweth_new_code_fix, | |
1023 | 100, | |
1024 | 3)) < 0) { | |
fbe2bafc | 1025 | err("Error downloading firmware fix (%d)", result); |
1da177e4 LT |
1026 | goto err_fw; |
1027 | } | |
1028 | ||
1029 | if ((result = kaweth_download_firmware(kaweth, | |
1030 | kaweth_trigger_code, | |
1031 | len_kaweth_trigger_code, | |
1032 | 126, | |
1033 | 2)) < 0) { | |
fbe2bafc | 1034 | err("Error downloading trigger code (%d)", result); |
1da177e4 LT |
1035 | goto err_fw; |
1036 | ||
1037 | } | |
1038 | ||
1039 | if ((result = kaweth_download_firmware(kaweth, | |
1040 | kaweth_trigger_code_fix, | |
1041 | len_kaweth_trigger_code_fix, | |
1042 | 126, | |
1043 | 3)) < 0) { | |
fbe2bafc | 1044 | err("Error downloading trigger code fix (%d)", result); |
1da177e4 LT |
1045 | goto err_fw; |
1046 | } | |
1047 | ||
1048 | ||
1049 | if ((result = kaweth_trigger_firmware(kaweth, 126)) < 0) { | |
fbe2bafc | 1050 | err("Error triggering firmware (%d)", result); |
1da177e4 LT |
1051 | goto err_fw; |
1052 | } | |
1053 | ||
1054 | /* Device will now disappear for a moment... */ | |
fbe2bafc | 1055 | info("Firmware loaded. I'll be back..."); |
1da177e4 LT |
1056 | err_fw: |
1057 | free_page((unsigned long)kaweth->firmware_buf); | |
1058 | free_netdev(netdev); | |
1059 | return -EIO; | |
1060 | } | |
1061 | ||
1062 | result = kaweth_read_configuration(kaweth); | |
1063 | ||
1064 | if(result < 0) { | |
fbe2bafc | 1065 | err("Error reading configuration (%d), no net device created", result); |
1da177e4 LT |
1066 | goto err_free_netdev; |
1067 | } | |
1068 | ||
fbe2bafc ON |
1069 | info("Statistics collection: %x", kaweth->configuration.statistics_mask); |
1070 | info("Multicast filter limit: %x", kaweth->configuration.max_multicast_filters & ((1 << 15) - 1)); | |
1071 | info("MTU: %d", le16_to_cpu(kaweth->configuration.segment_size)); | |
1072 | info("Read MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x", | |
1da177e4 LT |
1073 | (int)kaweth->configuration.hw_addr[0], |
1074 | (int)kaweth->configuration.hw_addr[1], | |
1075 | (int)kaweth->configuration.hw_addr[2], | |
1076 | (int)kaweth->configuration.hw_addr[3], | |
1077 | (int)kaweth->configuration.hw_addr[4], | |
1078 | (int)kaweth->configuration.hw_addr[5]); | |
1079 | ||
1080 | if(!memcmp(&kaweth->configuration.hw_addr, | |
1081 | &bcast_addr, | |
1082 | sizeof(bcast_addr))) { | |
fbe2bafc | 1083 | err("Firmware not functioning properly, no net device created"); |
1da177e4 LT |
1084 | goto err_free_netdev; |
1085 | } | |
1086 | ||
1087 | if(kaweth_set_urb_size(kaweth, KAWETH_BUF_SIZE) < 0) { | |
fbe2bafc | 1088 | dbg("Error setting URB size"); |
1da177e4 LT |
1089 | goto err_free_netdev; |
1090 | } | |
1091 | ||
1092 | if(kaweth_set_sofs_wait(kaweth, KAWETH_SOFS_TO_WAIT) < 0) { | |
fbe2bafc | 1093 | err("Error setting SOFS wait"); |
1da177e4 LT |
1094 | goto err_free_netdev; |
1095 | } | |
1096 | ||
1097 | result = kaweth_set_receive_filter(kaweth, | |
1098 | KAWETH_PACKET_FILTER_DIRECTED | | |
1099 | KAWETH_PACKET_FILTER_BROADCAST | | |
1100 | KAWETH_PACKET_FILTER_MULTICAST); | |
1101 | ||
1102 | if(result < 0) { | |
fbe2bafc | 1103 | err("Error setting receive filter"); |
1da177e4 LT |
1104 | goto err_free_netdev; |
1105 | } | |
1106 | ||
fbe2bafc | 1107 | dbg("Initializing net device."); |
1da177e4 | 1108 | |
b98b98f9 ON |
1109 | kaweth->intf = intf; |
1110 | ||
1da177e4 LT |
1111 | kaweth->tx_urb = usb_alloc_urb(0, GFP_KERNEL); |
1112 | if (!kaweth->tx_urb) | |
1113 | goto err_free_netdev; | |
1114 | kaweth->rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1115 | if (!kaweth->rx_urb) | |
1116 | goto err_only_tx; | |
1117 | kaweth->irq_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1118 | if (!kaweth->irq_urb) | |
1119 | goto err_tx_and_rx; | |
1120 | ||
1121 | kaweth->intbuffer = usb_buffer_alloc( kaweth->dev, | |
1122 | INTBUFFERSIZE, | |
1123 | GFP_KERNEL, | |
1124 | &kaweth->intbufferhandle); | |
1125 | if (!kaweth->intbuffer) | |
1126 | goto err_tx_and_rx_and_irq; | |
1127 | kaweth->rx_buf = usb_buffer_alloc( kaweth->dev, | |
1128 | KAWETH_BUF_SIZE, | |
1129 | GFP_KERNEL, | |
1130 | &kaweth->rxbufferhandle); | |
1131 | if (!kaweth->rx_buf) | |
1132 | goto err_all_but_rxbuf; | |
1133 | ||
1134 | memcpy(netdev->broadcast, &bcast_addr, sizeof(bcast_addr)); | |
1135 | memcpy(netdev->dev_addr, &kaweth->configuration.hw_addr, | |
1136 | sizeof(kaweth->configuration.hw_addr)); | |
1137 | ||
1138 | netdev->open = kaweth_open; | |
1139 | netdev->stop = kaweth_close; | |
1140 | ||
1141 | netdev->watchdog_timeo = KAWETH_TX_TIMEOUT; | |
1142 | netdev->tx_timeout = kaweth_tx_timeout; | |
1143 | ||
1144 | netdev->hard_start_xmit = kaweth_start_xmit; | |
1145 | netdev->set_multicast_list = kaweth_set_rx_mode; | |
1146 | netdev->get_stats = kaweth_netdev_stats; | |
1147 | netdev->mtu = le16_to_cpu(kaweth->configuration.segment_size); | |
1148 | SET_ETHTOOL_OPS(netdev, &ops); | |
1149 | ||
1150 | /* kaweth is zeroed as part of alloc_netdev */ | |
1151 | ||
c4028958 | 1152 | INIT_DELAYED_WORK(&kaweth->lowmem_work, kaweth_resubmit_tl); |
1da177e4 | 1153 | |
1da177e4 LT |
1154 | usb_set_intfdata(intf, kaweth); |
1155 | ||
1156 | #if 0 | |
1157 | // dma_supported() is deeply broken on almost all architectures | |
1158 | if (dma_supported (&intf->dev, 0xffffffffffffffffULL)) | |
1159 | kaweth->net->features |= NETIF_F_HIGHDMA; | |
1160 | #endif | |
1161 | ||
1162 | SET_NETDEV_DEV(netdev, &intf->dev); | |
1163 | if (register_netdev(netdev) != 0) { | |
fbe2bafc | 1164 | err("Error registering netdev."); |
1da177e4 LT |
1165 | goto err_intfdata; |
1166 | } | |
1167 | ||
fbe2bafc | 1168 | info("kaweth interface created at %s", kaweth->net->name); |
1da177e4 | 1169 | |
fbe2bafc | 1170 | dbg("Kaweth probe returning."); |
1da177e4 LT |
1171 | |
1172 | return 0; | |
1173 | ||
1174 | err_intfdata: | |
1175 | usb_set_intfdata(intf, NULL); | |
1176 | usb_buffer_free(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); | |
1177 | err_all_but_rxbuf: | |
1178 | usb_buffer_free(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); | |
1179 | err_tx_and_rx_and_irq: | |
1180 | usb_free_urb(kaweth->irq_urb); | |
1181 | err_tx_and_rx: | |
1182 | usb_free_urb(kaweth->rx_urb); | |
1183 | err_only_tx: | |
1184 | usb_free_urb(kaweth->tx_urb); | |
1185 | err_free_netdev: | |
1186 | free_netdev(netdev); | |
1187 | ||
1188 | return -EIO; | |
1189 | } | |
1190 | ||
1191 | /**************************************************************** | |
1192 | * kaweth_disconnect | |
1193 | ****************************************************************/ | |
1194 | static void kaweth_disconnect(struct usb_interface *intf) | |
1195 | { | |
1196 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
1197 | struct net_device *netdev; | |
1198 | ||
fbe2bafc | 1199 | info("Unregistering"); |
1da177e4 LT |
1200 | |
1201 | usb_set_intfdata(intf, NULL); | |
1202 | if (!kaweth) { | |
fbe2bafc | 1203 | warn("unregistering non-existant device"); |
1da177e4 LT |
1204 | return; |
1205 | } | |
1206 | netdev = kaweth->net; | |
1da177e4 | 1207 | |
fbe2bafc | 1208 | dbg("Unregistering net device"); |
1da177e4 LT |
1209 | unregister_netdev(netdev); |
1210 | ||
1211 | usb_free_urb(kaweth->rx_urb); | |
1212 | usb_free_urb(kaweth->tx_urb); | |
1213 | usb_free_urb(kaweth->irq_urb); | |
1214 | ||
1215 | usb_buffer_free(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); | |
1216 | usb_buffer_free(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); | |
1217 | ||
1218 | free_netdev(netdev); | |
1219 | } | |
1220 | ||
1221 | ||
1222 | // FIXME this completion stuff is a modified clone of | |
1223 | // an OLD version of some stuff in usb.c ... | |
1224 | struct usb_api_data { | |
1225 | wait_queue_head_t wqh; | |
1226 | int done; | |
1227 | }; | |
1228 | ||
1229 | /*-------------------------------------------------------------------* | |
1230 | * completion handler for compatibility wrappers (sync control/bulk) * | |
1231 | *-------------------------------------------------------------------*/ | |
7d12e780 | 1232 | static void usb_api_blocking_completion(struct urb *urb) |
1da177e4 LT |
1233 | { |
1234 | struct usb_api_data *awd = (struct usb_api_data *)urb->context; | |
1235 | ||
1236 | awd->done=1; | |
1237 | wake_up(&awd->wqh); | |
1238 | } | |
1239 | ||
1240 | /*-------------------------------------------------------------------* | |
1241 | * COMPATIBILITY STUFF * | |
1242 | *-------------------------------------------------------------------*/ | |
1243 | ||
1244 | // Starts urb and waits for completion or timeout | |
1245 | static int usb_start_wait_urb(struct urb *urb, int timeout, int* actual_length) | |
1246 | { | |
1247 | struct usb_api_data awd; | |
1248 | int status; | |
1249 | ||
1250 | init_waitqueue_head(&awd.wqh); | |
1251 | awd.done = 0; | |
1252 | ||
1253 | urb->context = &awd; | |
1254 | status = usb_submit_urb(urb, GFP_NOIO); | |
1255 | if (status) { | |
1256 | // something went wrong | |
1257 | usb_free_urb(urb); | |
1258 | return status; | |
1259 | } | |
1260 | ||
1261 | if (!wait_event_timeout(awd.wqh, awd.done, timeout)) { | |
1262 | // timeout | |
fbe2bafc | 1263 | warn("usb_control/bulk_msg: timeout"); |
1da177e4 LT |
1264 | usb_kill_urb(urb); // remove urb safely |
1265 | status = -ETIMEDOUT; | |
1266 | } | |
1267 | else { | |
1268 | status = urb->status; | |
1269 | } | |
1270 | ||
1271 | if (actual_length) { | |
1272 | *actual_length = urb->actual_length; | |
1273 | } | |
1274 | ||
1275 | usb_free_urb(urb); | |
1276 | return status; | |
1277 | } | |
1278 | ||
1279 | /*-------------------------------------------------------------------*/ | |
1280 | // returns status (negative) or length (positive) | |
1281 | static int kaweth_internal_control_msg(struct usb_device *usb_dev, | |
1282 | unsigned int pipe, | |
1283 | struct usb_ctrlrequest *cmd, void *data, | |
1284 | int len, int timeout) | |
1285 | { | |
1286 | struct urb *urb; | |
1287 | int retv; | |
b98b98f9 | 1288 | int length = 0; /* shut up GCC */ |
1da177e4 LT |
1289 | |
1290 | urb = usb_alloc_urb(0, GFP_NOIO); | |
1291 | if (!urb) | |
1292 | return -ENOMEM; | |
1293 | ||
1294 | usb_fill_control_urb(urb, usb_dev, pipe, (unsigned char*)cmd, data, | |
1295 | len, usb_api_blocking_completion, NULL); | |
1296 | ||
1297 | retv = usb_start_wait_urb(urb, timeout, &length); | |
1298 | if (retv < 0) { | |
1299 | return retv; | |
1300 | } | |
1301 | else { | |
1302 | return length; | |
1303 | } | |
1304 | } | |
1305 | ||
1306 | ||
1307 | /**************************************************************** | |
1308 | * kaweth_init | |
1309 | ****************************************************************/ | |
1310 | static int __init kaweth_init(void) | |
1311 | { | |
fbe2bafc | 1312 | dbg("Driver loading"); |
1da177e4 LT |
1313 | return usb_register(&kaweth_driver); |
1314 | } | |
1315 | ||
1316 | /**************************************************************** | |
1317 | * kaweth_exit | |
1318 | ****************************************************************/ | |
1319 | static void __exit kaweth_exit(void) | |
1320 | { | |
1321 | usb_deregister(&kaweth_driver); | |
1322 | } | |
1323 | ||
1324 | module_init(kaweth_init); | |
1325 | module_exit(kaweth_exit); | |
1326 | ||
1327 | ||
1328 | ||
1329 | ||
1330 | ||
1331 | ||
1332 | ||
1333 | ||
1334 |