]>
Commit | Line | Data |
---|---|---|
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> | |
61 | #include <asm/semaphore.h> | |
62 | #include <asm/byteorder.h> | |
63 | ||
64 | #undef DEBUG | |
65 | ||
1da177e4 LT |
66 | #include "kawethfw.h" |
67 | ||
68 | #define KAWETH_MTU 1514 | |
69 | #define KAWETH_BUF_SIZE 1664 | |
70 | #define KAWETH_TX_TIMEOUT (5 * HZ) | |
71 | #define KAWETH_SCRATCH_SIZE 32 | |
72 | #define KAWETH_FIRMWARE_BUF_SIZE 4096 | |
73 | #define KAWETH_CONTROL_TIMEOUT (30 * HZ) | |
74 | ||
75 | #define KAWETH_STATUS_BROKEN 0x0000001 | |
76 | #define KAWETH_STATUS_CLOSING 0x0000002 | |
1a2ea1df ON |
77 | #define KAWETH_STATUS_SUSPENDING 0x0000004 |
78 | ||
79 | #define KAWETH_STATUS_BLOCKED (KAWETH_STATUS_CLOSING | KAWETH_STATUS_SUSPENDING) | |
1da177e4 LT |
80 | |
81 | #define KAWETH_PACKET_FILTER_PROMISCUOUS 0x01 | |
82 | #define KAWETH_PACKET_FILTER_ALL_MULTICAST 0x02 | |
83 | #define KAWETH_PACKET_FILTER_DIRECTED 0x04 | |
84 | #define KAWETH_PACKET_FILTER_BROADCAST 0x08 | |
85 | #define KAWETH_PACKET_FILTER_MULTICAST 0x10 | |
86 | ||
87 | /* Table 7 */ | |
88 | #define KAWETH_COMMAND_GET_ETHERNET_DESC 0x00 | |
89 | #define KAWETH_COMMAND_MULTICAST_FILTERS 0x01 | |
90 | #define KAWETH_COMMAND_SET_PACKET_FILTER 0x02 | |
91 | #define KAWETH_COMMAND_STATISTICS 0x03 | |
92 | #define KAWETH_COMMAND_SET_TEMP_MAC 0x06 | |
93 | #define KAWETH_COMMAND_GET_TEMP_MAC 0x07 | |
94 | #define KAWETH_COMMAND_SET_URB_SIZE 0x08 | |
95 | #define KAWETH_COMMAND_SET_SOFS_WAIT 0x09 | |
96 | #define KAWETH_COMMAND_SCAN 0xFF | |
97 | ||
98 | #define KAWETH_SOFS_TO_WAIT 0x05 | |
99 | ||
100 | #define INTBUFFERSIZE 4 | |
101 | ||
102 | #define STATE_OFFSET 0 | |
103 | #define STATE_MASK 0x40 | |
104 | #define STATE_SHIFT 5 | |
105 | ||
1a2ea1df ON |
106 | #define IS_BLOCKED(s) (s & KAWETH_STATUS_BLOCKED) |
107 | ||
1da177e4 LT |
108 | |
109 | 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>"); | |
110 | MODULE_DESCRIPTION("KL5USB101 USB Ethernet driver"); | |
111 | MODULE_LICENSE("GPL"); | |
112 | ||
113 | static const char driver_name[] = "kaweth"; | |
114 | ||
115 | static int kaweth_probe( | |
116 | struct usb_interface *intf, | |
117 | const struct usb_device_id *id /* from id_table */ | |
118 | ); | |
119 | static void kaweth_disconnect(struct usb_interface *intf); | |
120 | static int kaweth_internal_control_msg(struct usb_device *usb_dev, | |
121 | unsigned int pipe, | |
122 | struct usb_ctrlrequest *cmd, void *data, | |
123 | int len, int timeout); | |
1a2ea1df ON |
124 | static int kaweth_suspend(struct usb_interface *intf, pm_message_t message); |
125 | static int kaweth_resume(struct usb_interface *intf); | |
1da177e4 LT |
126 | |
127 | /**************************************************************** | |
128 | * usb_device_id | |
129 | ****************************************************************/ | |
130 | static struct usb_device_id usb_klsi_table[] = { | |
131 | { USB_DEVICE(0x03e8, 0x0008) }, /* AOX Endpoints USB Ethernet */ | |
132 | { USB_DEVICE(0x04bb, 0x0901) }, /* I-O DATA USB-ET/T */ | |
133 | { USB_DEVICE(0x0506, 0x03e8) }, /* 3Com 3C19250 */ | |
134 | { USB_DEVICE(0x0506, 0x11f8) }, /* 3Com 3C460 */ | |
135 | { USB_DEVICE(0x0557, 0x2002) }, /* ATEN USB Ethernet */ | |
136 | { USB_DEVICE(0x0557, 0x4000) }, /* D-Link DSB-650C */ | |
137 | { USB_DEVICE(0x0565, 0x0002) }, /* Peracom Enet */ | |
138 | { USB_DEVICE(0x0565, 0x0003) }, /* Optus@Home UEP1045A */ | |
139 | { USB_DEVICE(0x0565, 0x0005) }, /* Peracom Enet2 */ | |
140 | { USB_DEVICE(0x05e9, 0x0008) }, /* KLSI KL5KUSB101B */ | |
141 | { USB_DEVICE(0x05e9, 0x0009) }, /* KLSI KL5KUSB101B (Board change) */ | |
142 | { USB_DEVICE(0x066b, 0x2202) }, /* Linksys USB10T */ | |
143 | { USB_DEVICE(0x06e1, 0x0008) }, /* ADS USB-10BT */ | |
144 | { USB_DEVICE(0x06e1, 0x0009) }, /* ADS USB-10BT */ | |
145 | { USB_DEVICE(0x0707, 0x0100) }, /* SMC 2202USB */ | |
146 | { USB_DEVICE(0x07aa, 0x0001) }, /* Correga K.K. */ | |
147 | { USB_DEVICE(0x07b8, 0x4000) }, /* D-Link DU-E10 */ | |
148 | { USB_DEVICE(0x0846, 0x1001) }, /* NetGear EA-101 */ | |
149 | { USB_DEVICE(0x0846, 0x1002) }, /* NetGear EA-101 */ | |
150 | { USB_DEVICE(0x085a, 0x0008) }, /* PortGear Ethernet Adapter */ | |
151 | { USB_DEVICE(0x085a, 0x0009) }, /* PortGear Ethernet Adapter */ | |
152 | { USB_DEVICE(0x087d, 0x5704) }, /* Jaton USB Ethernet Device Adapter */ | |
153 | { USB_DEVICE(0x0951, 0x0008) }, /* Kingston Technology USB Ethernet Adapter */ | |
154 | { USB_DEVICE(0x095a, 0x3003) }, /* Portsmith Express Ethernet Adapter */ | |
155 | { USB_DEVICE(0x10bd, 0x1427) }, /* ASANTE USB To Ethernet Adapter */ | |
156 | { USB_DEVICE(0x1342, 0x0204) }, /* Mobility USB-Ethernet Adapter */ | |
157 | { USB_DEVICE(0x13d2, 0x0400) }, /* Shark Pocket Adapter */ | |
158 | { USB_DEVICE(0x1485, 0x0001) }, /* Silicom U2E */ | |
159 | { USB_DEVICE(0x1485, 0x0002) }, /* Psion Dacom Gold Port Ethernet */ | |
160 | { USB_DEVICE(0x1645, 0x0005) }, /* Entrega E45 */ | |
161 | { USB_DEVICE(0x1645, 0x0008) }, /* Entrega USB Ethernet Adapter */ | |
162 | { USB_DEVICE(0x1645, 0x8005) }, /* PortGear Ethernet Adapter */ | |
486ba2a9 | 163 | { USB_DEVICE(0x1668, 0x0323) }, /* Actiontec USB Ethernet */ |
1da177e4 LT |
164 | { USB_DEVICE(0x2001, 0x4000) }, /* D-link DSB-650C */ |
165 | {} /* Null terminator */ | |
166 | }; | |
167 | ||
168 | MODULE_DEVICE_TABLE (usb, usb_klsi_table); | |
169 | ||
170 | /**************************************************************** | |
171 | * kaweth_driver | |
172 | ****************************************************************/ | |
173 | static struct usb_driver kaweth_driver = { | |
1da177e4 LT |
174 | .name = driver_name, |
175 | .probe = kaweth_probe, | |
176 | .disconnect = kaweth_disconnect, | |
1a2ea1df ON |
177 | .suspend = kaweth_suspend, |
178 | .resume = kaweth_resume, | |
1da177e4 | 179 | .id_table = usb_klsi_table, |
b98b98f9 | 180 | .supports_autosuspend = 1, |
1da177e4 LT |
181 | }; |
182 | ||
183 | typedef __u8 eth_addr_t[6]; | |
184 | ||
185 | /**************************************************************** | |
186 | * usb_eth_dev | |
187 | ****************************************************************/ | |
188 | struct usb_eth_dev { | |
189 | char *name; | |
190 | __u16 vendor; | |
191 | __u16 device; | |
192 | void *pdata; | |
193 | }; | |
194 | ||
195 | /**************************************************************** | |
196 | * kaweth_ethernet_configuration | |
197 | * Refer Table 8 | |
198 | ****************************************************************/ | |
199 | struct kaweth_ethernet_configuration | |
200 | { | |
201 | __u8 size; | |
202 | __u8 reserved1; | |
203 | __u8 reserved2; | |
204 | eth_addr_t hw_addr; | |
205 | __u32 statistics_mask; | |
206 | __le16 segment_size; | |
207 | __u16 max_multicast_filters; | |
208 | __u8 reserved3; | |
209 | } __attribute__ ((packed)); | |
210 | ||
211 | /**************************************************************** | |
212 | * kaweth_device | |
213 | ****************************************************************/ | |
214 | struct kaweth_device | |
215 | { | |
216 | spinlock_t device_lock; | |
217 | ||
218 | __u32 status; | |
219 | int end; | |
1da177e4 LT |
220 | int suspend_lowmem_rx; |
221 | int suspend_lowmem_ctrl; | |
222 | int linkstate; | |
1a2ea1df | 223 | int opened; |
c4028958 | 224 | struct delayed_work lowmem_work; |
1da177e4 LT |
225 | |
226 | struct usb_device *dev; | |
b98b98f9 | 227 | struct usb_interface *intf; |
1da177e4 LT |
228 | struct net_device *net; |
229 | wait_queue_head_t term_wait; | |
230 | ||
231 | struct urb *rx_urb; | |
232 | struct urb *tx_urb; | |
233 | struct urb *irq_urb; | |
234 | ||
235 | dma_addr_t intbufferhandle; | |
236 | __u8 *intbuffer; | |
237 | dma_addr_t rxbufferhandle; | |
238 | __u8 *rx_buf; | |
239 | ||
240 | ||
241 | struct sk_buff *tx_skb; | |
242 | ||
243 | __u8 *firmware_buf; | |
244 | __u8 scratch[KAWETH_SCRATCH_SIZE]; | |
245 | __u16 packet_filter_bitmap; | |
246 | ||
247 | struct kaweth_ethernet_configuration configuration; | |
248 | ||
249 | struct net_device_stats stats; | |
250 | }; | |
251 | ||
252 | ||
253 | /**************************************************************** | |
254 | * kaweth_control | |
255 | ****************************************************************/ | |
256 | static int kaweth_control(struct kaweth_device *kaweth, | |
257 | unsigned int pipe, | |
258 | __u8 request, | |
259 | __u8 requesttype, | |
260 | __u16 value, | |
261 | __u16 index, | |
262 | void *data, | |
263 | __u16 size, | |
264 | int timeout) | |
265 | { | |
266 | struct usb_ctrlrequest *dr; | |
267 | ||
fbe2bafc | 268 | dbg("kaweth_control()"); |
1da177e4 LT |
269 | |
270 | if(in_interrupt()) { | |
fbe2bafc | 271 | dbg("in_interrupt()"); |
1da177e4 LT |
272 | return -EBUSY; |
273 | } | |
274 | ||
275 | dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC); | |
276 | ||
277 | if (!dr) { | |
fbe2bafc | 278 | dbg("kmalloc() failed"); |
1da177e4 LT |
279 | return -ENOMEM; |
280 | } | |
281 | ||
282 | dr->bRequestType= requesttype; | |
283 | dr->bRequest = request; | |
284 | dr->wValue = cpu_to_le16p(&value); | |
285 | dr->wIndex = cpu_to_le16p(&index); | |
286 | dr->wLength = cpu_to_le16p(&size); | |
287 | ||
288 | return kaweth_internal_control_msg(kaweth->dev, | |
289 | pipe, | |
290 | dr, | |
291 | data, | |
292 | size, | |
293 | timeout); | |
294 | } | |
295 | ||
296 | /**************************************************************** | |
297 | * kaweth_read_configuration | |
298 | ****************************************************************/ | |
299 | static int kaweth_read_configuration(struct kaweth_device *kaweth) | |
300 | { | |
301 | int retval; | |
302 | ||
fbe2bafc | 303 | dbg("Reading kaweth configuration"); |
1da177e4 LT |
304 | |
305 | retval = kaweth_control(kaweth, | |
306 | usb_rcvctrlpipe(kaweth->dev, 0), | |
307 | KAWETH_COMMAND_GET_ETHERNET_DESC, | |
308 | USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE, | |
309 | 0, | |
310 | 0, | |
311 | (void *)&kaweth->configuration, | |
312 | sizeof(kaweth->configuration), | |
313 | KAWETH_CONTROL_TIMEOUT); | |
314 | ||
315 | return retval; | |
316 | } | |
317 | ||
318 | /**************************************************************** | |
319 | * kaweth_set_urb_size | |
320 | ****************************************************************/ | |
321 | static int kaweth_set_urb_size(struct kaweth_device *kaweth, __u16 urb_size) | |
322 | { | |
323 | int retval; | |
324 | ||
fbe2bafc | 325 | dbg("Setting URB size to %d", (unsigned)urb_size); |
1da177e4 LT |
326 | |
327 | retval = kaweth_control(kaweth, | |
328 | usb_sndctrlpipe(kaweth->dev, 0), | |
329 | KAWETH_COMMAND_SET_URB_SIZE, | |
330 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
331 | urb_size, | |
332 | 0, | |
333 | (void *)&kaweth->scratch, | |
334 | 0, | |
335 | KAWETH_CONTROL_TIMEOUT); | |
336 | ||
337 | return retval; | |
338 | } | |
339 | ||
340 | /**************************************************************** | |
341 | * kaweth_set_sofs_wait | |
342 | ****************************************************************/ | |
343 | static int kaweth_set_sofs_wait(struct kaweth_device *kaweth, __u16 sofs_wait) | |
344 | { | |
345 | int retval; | |
346 | ||
fbe2bafc | 347 | dbg("Set SOFS wait to %d", (unsigned)sofs_wait); |
1da177e4 LT |
348 | |
349 | retval = kaweth_control(kaweth, | |
350 | usb_sndctrlpipe(kaweth->dev, 0), | |
351 | KAWETH_COMMAND_SET_SOFS_WAIT, | |
352 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
353 | sofs_wait, | |
354 | 0, | |
355 | (void *)&kaweth->scratch, | |
356 | 0, | |
357 | KAWETH_CONTROL_TIMEOUT); | |
358 | ||
359 | return retval; | |
360 | } | |
361 | ||
362 | /**************************************************************** | |
363 | * kaweth_set_receive_filter | |
364 | ****************************************************************/ | |
365 | static int kaweth_set_receive_filter(struct kaweth_device *kaweth, | |
366 | __u16 receive_filter) | |
367 | { | |
368 | int retval; | |
369 | ||
fbe2bafc | 370 | dbg("Set receive filter to %d", (unsigned)receive_filter); |
1da177e4 LT |
371 | |
372 | retval = kaweth_control(kaweth, | |
373 | usb_sndctrlpipe(kaweth->dev, 0), | |
374 | KAWETH_COMMAND_SET_PACKET_FILTER, | |
375 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
376 | receive_filter, | |
377 | 0, | |
378 | (void *)&kaweth->scratch, | |
379 | 0, | |
380 | KAWETH_CONTROL_TIMEOUT); | |
381 | ||
382 | return retval; | |
383 | } | |
384 | ||
385 | /**************************************************************** | |
386 | * kaweth_download_firmware | |
387 | ****************************************************************/ | |
388 | static int kaweth_download_firmware(struct kaweth_device *kaweth, | |
389 | __u8 *data, | |
390 | __u16 data_len, | |
391 | __u8 interrupt, | |
392 | __u8 type) | |
393 | { | |
394 | if(data_len > KAWETH_FIRMWARE_BUF_SIZE) { | |
fbe2bafc | 395 | err("Firmware too big: %d", data_len); |
1da177e4 LT |
396 | return -ENOSPC; |
397 | } | |
398 | ||
399 | memcpy(kaweth->firmware_buf, data, data_len); | |
400 | ||
401 | kaweth->firmware_buf[2] = (data_len & 0xFF) - 7; | |
402 | kaweth->firmware_buf[3] = data_len >> 8; | |
403 | kaweth->firmware_buf[4] = type; | |
404 | kaweth->firmware_buf[5] = interrupt; | |
405 | ||
fbe2bafc | 406 | dbg("High: %i, Low:%i", kaweth->firmware_buf[3], |
1da177e4 LT |
407 | kaweth->firmware_buf[2]); |
408 | ||
fbe2bafc | 409 | dbg("Downloading firmware at %p to kaweth device at %p", |
1da177e4 LT |
410 | data, |
411 | kaweth); | |
fbe2bafc | 412 | dbg("Firmware length: %d", data_len); |
1da177e4 LT |
413 | |
414 | return kaweth_control(kaweth, | |
415 | usb_sndctrlpipe(kaweth->dev, 0), | |
416 | KAWETH_COMMAND_SCAN, | |
417 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
418 | 0, | |
419 | 0, | |
420 | (void *)kaweth->firmware_buf, | |
421 | data_len, | |
422 | KAWETH_CONTROL_TIMEOUT); | |
423 | } | |
424 | ||
425 | /**************************************************************** | |
426 | * kaweth_trigger_firmware | |
427 | ****************************************************************/ | |
428 | static int kaweth_trigger_firmware(struct kaweth_device *kaweth, | |
429 | __u8 interrupt) | |
430 | { | |
431 | kaweth->firmware_buf[0] = 0xB6; | |
432 | kaweth->firmware_buf[1] = 0xC3; | |
433 | kaweth->firmware_buf[2] = 0x01; | |
434 | kaweth->firmware_buf[3] = 0x00; | |
435 | kaweth->firmware_buf[4] = 0x06; | |
436 | kaweth->firmware_buf[5] = interrupt; | |
437 | kaweth->firmware_buf[6] = 0x00; | |
438 | kaweth->firmware_buf[7] = 0x00; | |
439 | ||
fbe2bafc | 440 | dbg("Triggering firmware"); |
1da177e4 LT |
441 | |
442 | return kaweth_control(kaweth, | |
443 | usb_sndctrlpipe(kaweth->dev, 0), | |
444 | KAWETH_COMMAND_SCAN, | |
445 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
446 | 0, | |
447 | 0, | |
448 | (void *)kaweth->firmware_buf, | |
449 | 8, | |
450 | KAWETH_CONTROL_TIMEOUT); | |
451 | } | |
452 | ||
453 | /**************************************************************** | |
454 | * kaweth_reset | |
455 | ****************************************************************/ | |
456 | static int kaweth_reset(struct kaweth_device *kaweth) | |
457 | { | |
458 | int result; | |
459 | ||
fbe2bafc | 460 | dbg("kaweth_reset(%p)", kaweth); |
1da177e4 LT |
461 | result = kaweth_control(kaweth, |
462 | usb_sndctrlpipe(kaweth->dev, 0), | |
463 | USB_REQ_SET_CONFIGURATION, | |
464 | 0, | |
465 | kaweth->dev->config[0].desc.bConfigurationValue, | |
466 | 0, | |
467 | NULL, | |
468 | 0, | |
469 | KAWETH_CONTROL_TIMEOUT); | |
470 | ||
f2d45cd9 | 471 | mdelay(10); |
1da177e4 | 472 | |
fbe2bafc | 473 | dbg("kaweth_reset() returns %d.",result); |
1da177e4 LT |
474 | |
475 | return result; | |
476 | } | |
477 | ||
7d12e780 | 478 | static void kaweth_usb_receive(struct urb *); |
55016f10 | 479 | static int kaweth_resubmit_rx_urb(struct kaweth_device *, gfp_t); |
1da177e4 LT |
480 | |
481 | /**************************************************************** | |
482 | int_callback | |
483 | *****************************************************************/ | |
484 | ||
55016f10 | 485 | static void kaweth_resubmit_int_urb(struct kaweth_device *kaweth, gfp_t mf) |
1da177e4 LT |
486 | { |
487 | int status; | |
488 | ||
489 | status = usb_submit_urb (kaweth->irq_urb, mf); | |
490 | if (unlikely(status == -ENOMEM)) { | |
491 | kaweth->suspend_lowmem_ctrl = 1; | |
492 | schedule_delayed_work(&kaweth->lowmem_work, HZ/4); | |
493 | } else { | |
494 | kaweth->suspend_lowmem_ctrl = 0; | |
495 | } | |
496 | ||
497 | if (status) | |
498 | err ("can't resubmit intr, %s-%s, status %d", | |
499 | kaweth->dev->bus->bus_name, | |
500 | kaweth->dev->devpath, status); | |
501 | } | |
502 | ||
7d12e780 | 503 | static void int_callback(struct urb *u) |
1da177e4 LT |
504 | { |
505 | struct kaweth_device *kaweth = u->context; | |
506 | int act_state; | |
507 | ||
508 | switch (u->status) { | |
509 | case 0: /* success */ | |
510 | break; | |
511 | case -ECONNRESET: /* unlink */ | |
512 | case -ENOENT: | |
513 | case -ESHUTDOWN: | |
514 | return; | |
515 | /* -EPIPE: should clear the halt */ | |
516 | default: /* error */ | |
517 | goto resubmit; | |
518 | } | |
519 | ||
520 | /* we check the link state to report changes */ | |
521 | if (kaweth->linkstate != (act_state = ( kaweth->intbuffer[STATE_OFFSET] | STATE_MASK) >> STATE_SHIFT)) { | |
58125f95 | 522 | if (act_state) |
1da177e4 LT |
523 | netif_carrier_on(kaweth->net); |
524 | else | |
525 | netif_carrier_off(kaweth->net); | |
526 | ||
527 | kaweth->linkstate = act_state; | |
528 | } | |
529 | resubmit: | |
530 | kaweth_resubmit_int_urb(kaweth, GFP_ATOMIC); | |
531 | } | |
532 | ||
c4028958 | 533 | static void kaweth_resubmit_tl(struct work_struct *work) |
1da177e4 | 534 | { |
c4028958 DH |
535 | struct kaweth_device *kaweth = |
536 | container_of(work, struct kaweth_device, lowmem_work.work); | |
1da177e4 | 537 | |
1a2ea1df | 538 | if (IS_BLOCKED(kaweth->status)) |
1da177e4 LT |
539 | return; |
540 | ||
541 | if (kaweth->suspend_lowmem_rx) | |
542 | kaweth_resubmit_rx_urb(kaweth, GFP_NOIO); | |
543 | ||
544 | if (kaweth->suspend_lowmem_ctrl) | |
545 | kaweth_resubmit_int_urb(kaweth, GFP_NOIO); | |
546 | } | |
547 | ||
548 | ||
549 | /**************************************************************** | |
550 | * kaweth_resubmit_rx_urb | |
551 | ****************************************************************/ | |
552 | static int kaweth_resubmit_rx_urb(struct kaweth_device *kaweth, | |
55016f10 | 553 | gfp_t mem_flags) |
1da177e4 LT |
554 | { |
555 | int result; | |
556 | ||
557 | usb_fill_bulk_urb(kaweth->rx_urb, | |
558 | kaweth->dev, | |
559 | usb_rcvbulkpipe(kaweth->dev, 1), | |
560 | kaweth->rx_buf, | |
561 | KAWETH_BUF_SIZE, | |
562 | kaweth_usb_receive, | |
563 | kaweth); | |
564 | kaweth->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
565 | kaweth->rx_urb->transfer_dma = kaweth->rxbufferhandle; | |
566 | ||
567 | if((result = usb_submit_urb(kaweth->rx_urb, mem_flags))) { | |
568 | if (result == -ENOMEM) { | |
569 | kaweth->suspend_lowmem_rx = 1; | |
570 | schedule_delayed_work(&kaweth->lowmem_work, HZ/4); | |
571 | } | |
fbe2bafc | 572 | err("resubmitting rx_urb %d failed", result); |
1da177e4 LT |
573 | } else { |
574 | kaweth->suspend_lowmem_rx = 0; | |
575 | } | |
576 | ||
577 | return result; | |
578 | } | |
579 | ||
580 | static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth); | |
581 | ||
582 | /**************************************************************** | |
583 | * kaweth_usb_receive | |
584 | ****************************************************************/ | |
7d12e780 | 585 | static void kaweth_usb_receive(struct urb *urb) |
1da177e4 LT |
586 | { |
587 | struct kaweth_device *kaweth = urb->context; | |
588 | struct net_device *net = kaweth->net; | |
589 | ||
590 | int count = urb->actual_length; | |
591 | int count2 = urb->transfer_buffer_length; | |
592 | ||
593 | __u16 pkt_len = le16_to_cpup((__le16 *)kaweth->rx_buf); | |
594 | ||
595 | struct sk_buff *skb; | |
596 | ||
597 | if(unlikely(urb->status == -ECONNRESET || urb->status == -ESHUTDOWN)) | |
598 | /* we are killed - set a flag and wake the disconnect handler */ | |
599 | { | |
600 | kaweth->end = 1; | |
601 | wake_up(&kaweth->term_wait); | |
602 | return; | |
603 | } | |
604 | ||
1a2ea1df ON |
605 | spin_lock(&kaweth->device_lock); |
606 | if (IS_BLOCKED(kaweth->status)) { | |
607 | spin_unlock(&kaweth->device_lock); | |
1da177e4 | 608 | return; |
1a2ea1df ON |
609 | } |
610 | spin_unlock(&kaweth->device_lock); | |
1da177e4 LT |
611 | |
612 | if(urb->status && urb->status != -EREMOTEIO && count != 1) { | |
fbe2bafc | 613 | err("%s RX status: %d count: %d packet_len: %d", |
1da177e4 LT |
614 | net->name, |
615 | urb->status, | |
616 | count, | |
617 | (int)pkt_len); | |
618 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | |
619 | return; | |
620 | } | |
621 | ||
622 | if(kaweth->net && (count > 2)) { | |
623 | if(pkt_len > (count - 2)) { | |
fbe2bafc ON |
624 | err("Packet length too long for USB frame (pkt_len: %x, count: %x)",pkt_len, count); |
625 | err("Packet len & 2047: %x", pkt_len & 2047); | |
626 | err("Count 2: %x", count2); | |
1da177e4 LT |
627 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); |
628 | return; | |
629 | } | |
630 | ||
631 | if(!(skb = dev_alloc_skb(pkt_len+2))) { | |
632 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | |
633 | return; | |
634 | } | |
635 | ||
636 | skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */ | |
637 | ||
8c7b7faa | 638 | skb_copy_to_linear_data(skb, kaweth->rx_buf + 2, pkt_len); |
1da177e4 LT |
639 | |
640 | skb_put(skb, pkt_len); | |
641 | ||
642 | skb->protocol = eth_type_trans(skb, net); | |
643 | ||
644 | netif_rx(skb); | |
645 | ||
646 | kaweth->stats.rx_packets++; | |
647 | kaweth->stats.rx_bytes += pkt_len; | |
648 | } | |
649 | ||
650 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | |
651 | } | |
652 | ||
653 | /**************************************************************** | |
654 | * kaweth_open | |
655 | ****************************************************************/ | |
656 | static int kaweth_open(struct net_device *net) | |
657 | { | |
658 | struct kaweth_device *kaweth = netdev_priv(net); | |
659 | int res; | |
660 | ||
fbe2bafc | 661 | dbg("Opening network device."); |
1da177e4 | 662 | |
b98b98f9 ON |
663 | res = usb_autopm_get_interface(kaweth->intf); |
664 | if (res) { | |
665 | err("Interface cannot be resumed."); | |
666 | return -EIO; | |
667 | } | |
1da177e4 LT |
668 | res = kaweth_resubmit_rx_urb(kaweth, GFP_KERNEL); |
669 | if (res) | |
b98b98f9 | 670 | goto err_out; |
1da177e4 LT |
671 | |
672 | usb_fill_int_urb( | |
673 | kaweth->irq_urb, | |
674 | kaweth->dev, | |
675 | usb_rcvintpipe(kaweth->dev, 3), | |
676 | kaweth->intbuffer, | |
677 | INTBUFFERSIZE, | |
678 | int_callback, | |
679 | kaweth, | |
680 | 250); /* overriding the descriptor */ | |
681 | kaweth->irq_urb->transfer_dma = kaweth->intbufferhandle; | |
682 | kaweth->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
683 | ||
684 | res = usb_submit_urb(kaweth->irq_urb, GFP_KERNEL); | |
685 | if (res) { | |
686 | usb_kill_urb(kaweth->rx_urb); | |
b98b98f9 | 687 | goto err_out; |
1da177e4 | 688 | } |
1a2ea1df | 689 | kaweth->opened = 1; |
1da177e4 LT |
690 | |
691 | netif_start_queue(net); | |
692 | ||
693 | kaweth_async_set_rx_mode(kaweth); | |
694 | return 0; | |
b98b98f9 ON |
695 | |
696 | err_out: | |
697 | usb_autopm_enable(kaweth->intf); | |
698 | return -EIO; | |
1da177e4 LT |
699 | } |
700 | ||
701 | /**************************************************************** | |
b98b98f9 | 702 | * kaweth_kill_urbs |
1da177e4 | 703 | ****************************************************************/ |
1a2ea1df | 704 | static void kaweth_kill_urbs(struct kaweth_device *kaweth) |
1da177e4 | 705 | { |
1da177e4 LT |
706 | usb_kill_urb(kaweth->irq_urb); |
707 | usb_kill_urb(kaweth->rx_urb); | |
d23b536b | 708 | usb_kill_urb(kaweth->tx_urb); |
1da177e4 LT |
709 | |
710 | flush_scheduled_work(); | |
711 | ||
712 | /* a scheduled work may have resubmitted, | |
713 | we hit them again */ | |
714 | usb_kill_urb(kaweth->irq_urb); | |
715 | usb_kill_urb(kaweth->rx_urb); | |
1a2ea1df ON |
716 | } |
717 | ||
718 | /**************************************************************** | |
719 | * kaweth_close | |
720 | ****************************************************************/ | |
721 | static int kaweth_close(struct net_device *net) | |
722 | { | |
723 | struct kaweth_device *kaweth = netdev_priv(net); | |
724 | ||
725 | netif_stop_queue(net); | |
726 | kaweth->opened = 0; | |
727 | ||
728 | kaweth->status |= KAWETH_STATUS_CLOSING; | |
729 | ||
730 | kaweth_kill_urbs(kaweth); | |
1da177e4 LT |
731 | |
732 | kaweth->status &= ~KAWETH_STATUS_CLOSING; | |
733 | ||
b98b98f9 ON |
734 | usb_autopm_enable(kaweth->intf); |
735 | ||
1da177e4 LT |
736 | return 0; |
737 | } | |
738 | ||
739 | static void kaweth_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) | |
740 | { | |
b3ebd522 | 741 | struct kaweth_device *kaweth = netdev_priv(dev); |
1da177e4 LT |
742 | |
743 | strlcpy(info->driver, driver_name, sizeof(info->driver)); | |
b3ebd522 ON |
744 | usb_make_path(kaweth->dev, info->bus_info, sizeof (info->bus_info)); |
745 | } | |
746 | ||
747 | static u32 kaweth_get_link(struct net_device *dev) | |
748 | { | |
749 | struct kaweth_device *kaweth = netdev_priv(dev); | |
750 | ||
751 | return kaweth->linkstate; | |
1da177e4 LT |
752 | } |
753 | ||
754 | static struct ethtool_ops ops = { | |
b3ebd522 ON |
755 | .get_drvinfo = kaweth_get_drvinfo, |
756 | .get_link = kaweth_get_link | |
1da177e4 LT |
757 | }; |
758 | ||
759 | /**************************************************************** | |
760 | * kaweth_usb_transmit_complete | |
761 | ****************************************************************/ | |
7d12e780 | 762 | static void kaweth_usb_transmit_complete(struct urb *urb) |
1da177e4 LT |
763 | { |
764 | struct kaweth_device *kaweth = urb->context; | |
765 | struct sk_buff *skb = kaweth->tx_skb; | |
766 | ||
767 | if (unlikely(urb->status != 0)) | |
768 | if (urb->status != -ENOENT) | |
fbe2bafc | 769 | dbg("%s: TX status %d.", kaweth->net->name, urb->status); |
1da177e4 LT |
770 | |
771 | netif_wake_queue(kaweth->net); | |
772 | dev_kfree_skb_irq(skb); | |
773 | } | |
774 | ||
775 | /**************************************************************** | |
776 | * kaweth_start_xmit | |
777 | ****************************************************************/ | |
778 | static int kaweth_start_xmit(struct sk_buff *skb, struct net_device *net) | |
779 | { | |
780 | struct kaweth_device *kaweth = netdev_priv(net); | |
781 | __le16 *private_header; | |
782 | ||
783 | int res; | |
784 | ||
785 | spin_lock(&kaweth->device_lock); | |
786 | ||
1da177e4 LT |
787 | kaweth_async_set_rx_mode(kaweth); |
788 | netif_stop_queue(net); | |
1a2ea1df ON |
789 | if (IS_BLOCKED(kaweth->status)) { |
790 | goto skip; | |
791 | } | |
1da177e4 LT |
792 | |
793 | /* We now decide whether we can put our special header into the sk_buff */ | |
794 | if (skb_cloned(skb) || skb_headroom(skb) < 2) { | |
795 | /* no such luck - we make our own */ | |
796 | struct sk_buff *copied_skb; | |
797 | copied_skb = skb_copy_expand(skb, 2, 0, GFP_ATOMIC); | |
798 | dev_kfree_skb_irq(skb); | |
799 | skb = copied_skb; | |
800 | if (!copied_skb) { | |
801 | kaweth->stats.tx_errors++; | |
802 | netif_start_queue(net); | |
803 | spin_unlock(&kaweth->device_lock); | |
804 | return 0; | |
805 | } | |
806 | } | |
807 | ||
808 | private_header = (__le16 *)__skb_push(skb, 2); | |
809 | *private_header = cpu_to_le16(skb->len-2); | |
810 | kaweth->tx_skb = skb; | |
811 | ||
812 | usb_fill_bulk_urb(kaweth->tx_urb, | |
813 | kaweth->dev, | |
814 | usb_sndbulkpipe(kaweth->dev, 2), | |
815 | private_header, | |
816 | skb->len, | |
817 | kaweth_usb_transmit_complete, | |
818 | kaweth); | |
819 | kaweth->end = 0; | |
1da177e4 LT |
820 | |
821 | if((res = usb_submit_urb(kaweth->tx_urb, GFP_ATOMIC))) | |
822 | { | |
fbe2bafc | 823 | warn("kaweth failed tx_urb %d", res); |
1a2ea1df | 824 | skip: |
1da177e4 LT |
825 | kaweth->stats.tx_errors++; |
826 | ||
827 | netif_start_queue(net); | |
828 | dev_kfree_skb_irq(skb); | |
829 | } | |
830 | else | |
831 | { | |
832 | kaweth->stats.tx_packets++; | |
833 | kaweth->stats.tx_bytes += skb->len; | |
834 | net->trans_start = jiffies; | |
835 | } | |
836 | ||
837 | spin_unlock(&kaweth->device_lock); | |
838 | ||
839 | return 0; | |
840 | } | |
841 | ||
842 | /**************************************************************** | |
843 | * kaweth_set_rx_mode | |
844 | ****************************************************************/ | |
845 | static void kaweth_set_rx_mode(struct net_device *net) | |
846 | { | |
847 | struct kaweth_device *kaweth = netdev_priv(net); | |
848 | ||
849 | __u16 packet_filter_bitmap = KAWETH_PACKET_FILTER_DIRECTED | | |
850 | KAWETH_PACKET_FILTER_BROADCAST | | |
851 | KAWETH_PACKET_FILTER_MULTICAST; | |
852 | ||
fbe2bafc | 853 | dbg("Setting Rx mode to %d", packet_filter_bitmap); |
1da177e4 LT |
854 | |
855 | netif_stop_queue(net); | |
856 | ||
857 | if (net->flags & IFF_PROMISC) { | |
858 | packet_filter_bitmap |= KAWETH_PACKET_FILTER_PROMISCUOUS; | |
859 | } | |
860 | else if ((net->mc_count) || (net->flags & IFF_ALLMULTI)) { | |
861 | packet_filter_bitmap |= KAWETH_PACKET_FILTER_ALL_MULTICAST; | |
862 | } | |
863 | ||
864 | kaweth->packet_filter_bitmap = packet_filter_bitmap; | |
865 | netif_wake_queue(net); | |
866 | } | |
867 | ||
868 | /**************************************************************** | |
869 | * kaweth_async_set_rx_mode | |
870 | ****************************************************************/ | |
871 | static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth) | |
872 | { | |
873 | __u16 packet_filter_bitmap = kaweth->packet_filter_bitmap; | |
874 | kaweth->packet_filter_bitmap = 0; | |
875 | if (packet_filter_bitmap == 0) | |
876 | return; | |
877 | ||
878 | { | |
879 | int result; | |
880 | result = kaweth_control(kaweth, | |
881 | usb_sndctrlpipe(kaweth->dev, 0), | |
882 | KAWETH_COMMAND_SET_PACKET_FILTER, | |
883 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
884 | packet_filter_bitmap, | |
885 | 0, | |
886 | (void *)&kaweth->scratch, | |
887 | 0, | |
888 | KAWETH_CONTROL_TIMEOUT); | |
889 | ||
890 | if(result < 0) { | |
fbe2bafc | 891 | err("Failed to set Rx mode: %d", result); |
1da177e4 LT |
892 | } |
893 | else { | |
fbe2bafc | 894 | dbg("Set Rx mode to %d", packet_filter_bitmap); |
1da177e4 LT |
895 | } |
896 | } | |
897 | } | |
898 | ||
899 | /**************************************************************** | |
900 | * kaweth_netdev_stats | |
901 | ****************************************************************/ | |
902 | static struct net_device_stats *kaweth_netdev_stats(struct net_device *dev) | |
903 | { | |
904 | struct kaweth_device *kaweth = netdev_priv(dev); | |
905 | return &kaweth->stats; | |
906 | } | |
907 | ||
908 | /**************************************************************** | |
909 | * kaweth_tx_timeout | |
910 | ****************************************************************/ | |
911 | static void kaweth_tx_timeout(struct net_device *net) | |
912 | { | |
913 | struct kaweth_device *kaweth = netdev_priv(net); | |
914 | ||
fbe2bafc | 915 | warn("%s: Tx timed out. Resetting.", net->name); |
1da177e4 LT |
916 | kaweth->stats.tx_errors++; |
917 | net->trans_start = jiffies; | |
918 | ||
919 | usb_unlink_urb(kaweth->tx_urb); | |
920 | } | |
921 | ||
1a2ea1df ON |
922 | /**************************************************************** |
923 | * kaweth_suspend | |
924 | ****************************************************************/ | |
925 | static int kaweth_suspend(struct usb_interface *intf, pm_message_t message) | |
926 | { | |
927 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
928 | unsigned long flags; | |
929 | ||
b98b98f9 | 930 | dbg("Suspending device"); |
1a2ea1df ON |
931 | spin_lock_irqsave(&kaweth->device_lock, flags); |
932 | kaweth->status |= KAWETH_STATUS_SUSPENDING; | |
933 | spin_unlock_irqrestore(&kaweth->device_lock, flags); | |
934 | ||
935 | kaweth_kill_urbs(kaweth); | |
936 | return 0; | |
937 | } | |
938 | ||
939 | /**************************************************************** | |
940 | * kaweth_resume | |
941 | ****************************************************************/ | |
942 | static int kaweth_resume(struct usb_interface *intf) | |
943 | { | |
944 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
945 | unsigned long flags; | |
946 | ||
b98b98f9 | 947 | dbg("Resuming device"); |
1a2ea1df ON |
948 | spin_lock_irqsave(&kaweth->device_lock, flags); |
949 | kaweth->status &= ~KAWETH_STATUS_SUSPENDING; | |
950 | spin_unlock_irqrestore(&kaweth->device_lock, flags); | |
951 | ||
952 | if (!kaweth->opened) | |
953 | return 0; | |
954 | kaweth_resubmit_rx_urb(kaweth, GFP_NOIO); | |
955 | kaweth_resubmit_int_urb(kaweth, GFP_NOIO); | |
956 | ||
957 | return 0; | |
958 | } | |
959 | ||
1da177e4 LT |
960 | /**************************************************************** |
961 | * kaweth_probe | |
962 | ****************************************************************/ | |
963 | static int kaweth_probe( | |
964 | struct usb_interface *intf, | |
965 | const struct usb_device_id *id /* from id_table */ | |
966 | ) | |
967 | { | |
968 | struct usb_device *dev = interface_to_usbdev(intf); | |
969 | struct kaweth_device *kaweth; | |
970 | struct net_device *netdev; | |
971 | const eth_addr_t bcast_addr = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; | |
972 | int result = 0; | |
973 | ||
fbe2bafc | 974 | dbg("Kawasaki Device Probe (Device number:%d): 0x%4.4x:0x%4.4x:0x%4.4x", |
1da177e4 LT |
975 | dev->devnum, |
976 | le16_to_cpu(dev->descriptor.idVendor), | |
977 | le16_to_cpu(dev->descriptor.idProduct), | |
978 | le16_to_cpu(dev->descriptor.bcdDevice)); | |
979 | ||
fbe2bafc | 980 | dbg("Device at %p", dev); |
1da177e4 | 981 | |
fbe2bafc | 982 | dbg("Descriptor length: %x type: %x", |
1da177e4 LT |
983 | (int)dev->descriptor.bLength, |
984 | (int)dev->descriptor.bDescriptorType); | |
985 | ||
986 | netdev = alloc_etherdev(sizeof(*kaweth)); | |
987 | if (!netdev) | |
988 | return -ENOMEM; | |
989 | ||
990 | kaweth = netdev_priv(netdev); | |
991 | kaweth->dev = dev; | |
992 | kaweth->net = netdev; | |
993 | ||
994 | spin_lock_init(&kaweth->device_lock); | |
995 | init_waitqueue_head(&kaweth->term_wait); | |
996 | ||
fbe2bafc | 997 | dbg("Resetting."); |
1da177e4 LT |
998 | |
999 | kaweth_reset(kaweth); | |
1000 | ||
1001 | /* | |
1002 | * If high byte of bcdDevice is nonzero, firmware is already | |
1003 | * downloaded. Don't try to do it again, or we'll hang the device. | |
1004 | */ | |
1005 | ||
1006 | if (le16_to_cpu(dev->descriptor.bcdDevice) >> 8) { | |
fbe2bafc | 1007 | info("Firmware present in device."); |
1da177e4 LT |
1008 | } else { |
1009 | /* Download the firmware */ | |
fbe2bafc | 1010 | info("Downloading firmware..."); |
1da177e4 LT |
1011 | kaweth->firmware_buf = (__u8 *)__get_free_page(GFP_KERNEL); |
1012 | if ((result = kaweth_download_firmware(kaweth, | |
1013 | kaweth_new_code, | |
1014 | len_kaweth_new_code, | |
1015 | 100, | |
1016 | 2)) < 0) { | |
fbe2bafc | 1017 | err("Error downloading firmware (%d)", result); |
1da177e4 LT |
1018 | goto err_fw; |
1019 | } | |
1020 | ||
1021 | if ((result = kaweth_download_firmware(kaweth, | |
1022 | kaweth_new_code_fix, | |
1023 | len_kaweth_new_code_fix, | |
1024 | 100, | |
1025 | 3)) < 0) { | |
fbe2bafc | 1026 | err("Error downloading firmware fix (%d)", result); |
1da177e4 LT |
1027 | goto err_fw; |
1028 | } | |
1029 | ||
1030 | if ((result = kaweth_download_firmware(kaweth, | |
1031 | kaweth_trigger_code, | |
1032 | len_kaweth_trigger_code, | |
1033 | 126, | |
1034 | 2)) < 0) { | |
fbe2bafc | 1035 | err("Error downloading trigger code (%d)", result); |
1da177e4 LT |
1036 | goto err_fw; |
1037 | ||
1038 | } | |
1039 | ||
1040 | if ((result = kaweth_download_firmware(kaweth, | |
1041 | kaweth_trigger_code_fix, | |
1042 | len_kaweth_trigger_code_fix, | |
1043 | 126, | |
1044 | 3)) < 0) { | |
fbe2bafc | 1045 | err("Error downloading trigger code fix (%d)", result); |
1da177e4 LT |
1046 | goto err_fw; |
1047 | } | |
1048 | ||
1049 | ||
1050 | if ((result = kaweth_trigger_firmware(kaweth, 126)) < 0) { | |
fbe2bafc | 1051 | err("Error triggering firmware (%d)", result); |
1da177e4 LT |
1052 | goto err_fw; |
1053 | } | |
1054 | ||
1055 | /* Device will now disappear for a moment... */ | |
fbe2bafc | 1056 | info("Firmware loaded. I'll be back..."); |
1da177e4 LT |
1057 | err_fw: |
1058 | free_page((unsigned long)kaweth->firmware_buf); | |
1059 | free_netdev(netdev); | |
1060 | return -EIO; | |
1061 | } | |
1062 | ||
1063 | result = kaweth_read_configuration(kaweth); | |
1064 | ||
1065 | if(result < 0) { | |
fbe2bafc | 1066 | err("Error reading configuration (%d), no net device created", result); |
1da177e4 LT |
1067 | goto err_free_netdev; |
1068 | } | |
1069 | ||
fbe2bafc ON |
1070 | info("Statistics collection: %x", kaweth->configuration.statistics_mask); |
1071 | info("Multicast filter limit: %x", kaweth->configuration.max_multicast_filters & ((1 << 15) - 1)); | |
1072 | info("MTU: %d", le16_to_cpu(kaweth->configuration.segment_size)); | |
1073 | info("Read MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x", | |
1da177e4 LT |
1074 | (int)kaweth->configuration.hw_addr[0], |
1075 | (int)kaweth->configuration.hw_addr[1], | |
1076 | (int)kaweth->configuration.hw_addr[2], | |
1077 | (int)kaweth->configuration.hw_addr[3], | |
1078 | (int)kaweth->configuration.hw_addr[4], | |
1079 | (int)kaweth->configuration.hw_addr[5]); | |
1080 | ||
1081 | if(!memcmp(&kaweth->configuration.hw_addr, | |
1082 | &bcast_addr, | |
1083 | sizeof(bcast_addr))) { | |
fbe2bafc | 1084 | err("Firmware not functioning properly, no net device created"); |
1da177e4 LT |
1085 | goto err_free_netdev; |
1086 | } | |
1087 | ||
1088 | if(kaweth_set_urb_size(kaweth, KAWETH_BUF_SIZE) < 0) { | |
fbe2bafc | 1089 | dbg("Error setting URB size"); |
1da177e4 LT |
1090 | goto err_free_netdev; |
1091 | } | |
1092 | ||
1093 | if(kaweth_set_sofs_wait(kaweth, KAWETH_SOFS_TO_WAIT) < 0) { | |
fbe2bafc | 1094 | err("Error setting SOFS wait"); |
1da177e4 LT |
1095 | goto err_free_netdev; |
1096 | } | |
1097 | ||
1098 | result = kaweth_set_receive_filter(kaweth, | |
1099 | KAWETH_PACKET_FILTER_DIRECTED | | |
1100 | KAWETH_PACKET_FILTER_BROADCAST | | |
1101 | KAWETH_PACKET_FILTER_MULTICAST); | |
1102 | ||
1103 | if(result < 0) { | |
fbe2bafc | 1104 | err("Error setting receive filter"); |
1da177e4 LT |
1105 | goto err_free_netdev; |
1106 | } | |
1107 | ||
fbe2bafc | 1108 | dbg("Initializing net device."); |
1da177e4 | 1109 | |
b98b98f9 ON |
1110 | kaweth->intf = intf; |
1111 | ||
1da177e4 LT |
1112 | kaweth->tx_urb = usb_alloc_urb(0, GFP_KERNEL); |
1113 | if (!kaweth->tx_urb) | |
1114 | goto err_free_netdev; | |
1115 | kaweth->rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1116 | if (!kaweth->rx_urb) | |
1117 | goto err_only_tx; | |
1118 | kaweth->irq_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1119 | if (!kaweth->irq_urb) | |
1120 | goto err_tx_and_rx; | |
1121 | ||
1122 | kaweth->intbuffer = usb_buffer_alloc( kaweth->dev, | |
1123 | INTBUFFERSIZE, | |
1124 | GFP_KERNEL, | |
1125 | &kaweth->intbufferhandle); | |
1126 | if (!kaweth->intbuffer) | |
1127 | goto err_tx_and_rx_and_irq; | |
1128 | kaweth->rx_buf = usb_buffer_alloc( kaweth->dev, | |
1129 | KAWETH_BUF_SIZE, | |
1130 | GFP_KERNEL, | |
1131 | &kaweth->rxbufferhandle); | |
1132 | if (!kaweth->rx_buf) | |
1133 | goto err_all_but_rxbuf; | |
1134 | ||
1135 | memcpy(netdev->broadcast, &bcast_addr, sizeof(bcast_addr)); | |
1136 | memcpy(netdev->dev_addr, &kaweth->configuration.hw_addr, | |
1137 | sizeof(kaweth->configuration.hw_addr)); | |
1138 | ||
1139 | netdev->open = kaweth_open; | |
1140 | netdev->stop = kaweth_close; | |
1141 | ||
1142 | netdev->watchdog_timeo = KAWETH_TX_TIMEOUT; | |
1143 | netdev->tx_timeout = kaweth_tx_timeout; | |
1144 | ||
1145 | netdev->hard_start_xmit = kaweth_start_xmit; | |
1146 | netdev->set_multicast_list = kaweth_set_rx_mode; | |
1147 | netdev->get_stats = kaweth_netdev_stats; | |
1148 | netdev->mtu = le16_to_cpu(kaweth->configuration.segment_size); | |
1149 | SET_ETHTOOL_OPS(netdev, &ops); | |
1150 | ||
1151 | /* kaweth is zeroed as part of alloc_netdev */ | |
1152 | ||
c4028958 | 1153 | INIT_DELAYED_WORK(&kaweth->lowmem_work, kaweth_resubmit_tl); |
1da177e4 | 1154 | |
1da177e4 LT |
1155 | usb_set_intfdata(intf, kaweth); |
1156 | ||
1157 | #if 0 | |
1158 | // dma_supported() is deeply broken on almost all architectures | |
1159 | if (dma_supported (&intf->dev, 0xffffffffffffffffULL)) | |
1160 | kaweth->net->features |= NETIF_F_HIGHDMA; | |
1161 | #endif | |
1162 | ||
1163 | SET_NETDEV_DEV(netdev, &intf->dev); | |
1164 | if (register_netdev(netdev) != 0) { | |
fbe2bafc | 1165 | err("Error registering netdev."); |
1da177e4 LT |
1166 | goto err_intfdata; |
1167 | } | |
1168 | ||
fbe2bafc | 1169 | info("kaweth interface created at %s", kaweth->net->name); |
1da177e4 | 1170 | |
fbe2bafc | 1171 | dbg("Kaweth probe returning."); |
1da177e4 LT |
1172 | |
1173 | return 0; | |
1174 | ||
1175 | err_intfdata: | |
1176 | usb_set_intfdata(intf, NULL); | |
1177 | usb_buffer_free(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); | |
1178 | err_all_but_rxbuf: | |
1179 | usb_buffer_free(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); | |
1180 | err_tx_and_rx_and_irq: | |
1181 | usb_free_urb(kaweth->irq_urb); | |
1182 | err_tx_and_rx: | |
1183 | usb_free_urb(kaweth->rx_urb); | |
1184 | err_only_tx: | |
1185 | usb_free_urb(kaweth->tx_urb); | |
1186 | err_free_netdev: | |
1187 | free_netdev(netdev); | |
1188 | ||
1189 | return -EIO; | |
1190 | } | |
1191 | ||
1192 | /**************************************************************** | |
1193 | * kaweth_disconnect | |
1194 | ****************************************************************/ | |
1195 | static void kaweth_disconnect(struct usb_interface *intf) | |
1196 | { | |
1197 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
1198 | struct net_device *netdev; | |
1199 | ||
fbe2bafc | 1200 | info("Unregistering"); |
1da177e4 LT |
1201 | |
1202 | usb_set_intfdata(intf, NULL); | |
1203 | if (!kaweth) { | |
fbe2bafc | 1204 | warn("unregistering non-existant device"); |
1da177e4 LT |
1205 | return; |
1206 | } | |
1207 | netdev = kaweth->net; | |
1da177e4 | 1208 | |
fbe2bafc | 1209 | dbg("Unregistering net device"); |
1da177e4 LT |
1210 | unregister_netdev(netdev); |
1211 | ||
1212 | usb_free_urb(kaweth->rx_urb); | |
1213 | usb_free_urb(kaweth->tx_urb); | |
1214 | usb_free_urb(kaweth->irq_urb); | |
1215 | ||
1216 | usb_buffer_free(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); | |
1217 | usb_buffer_free(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); | |
1218 | ||
1219 | free_netdev(netdev); | |
1220 | } | |
1221 | ||
1222 | ||
1223 | // FIXME this completion stuff is a modified clone of | |
1224 | // an OLD version of some stuff in usb.c ... | |
1225 | struct usb_api_data { | |
1226 | wait_queue_head_t wqh; | |
1227 | int done; | |
1228 | }; | |
1229 | ||
1230 | /*-------------------------------------------------------------------* | |
1231 | * completion handler for compatibility wrappers (sync control/bulk) * | |
1232 | *-------------------------------------------------------------------*/ | |
7d12e780 | 1233 | static void usb_api_blocking_completion(struct urb *urb) |
1da177e4 LT |
1234 | { |
1235 | struct usb_api_data *awd = (struct usb_api_data *)urb->context; | |
1236 | ||
1237 | awd->done=1; | |
1238 | wake_up(&awd->wqh); | |
1239 | } | |
1240 | ||
1241 | /*-------------------------------------------------------------------* | |
1242 | * COMPATIBILITY STUFF * | |
1243 | *-------------------------------------------------------------------*/ | |
1244 | ||
1245 | // Starts urb and waits for completion or timeout | |
1246 | static int usb_start_wait_urb(struct urb *urb, int timeout, int* actual_length) | |
1247 | { | |
1248 | struct usb_api_data awd; | |
1249 | int status; | |
1250 | ||
1251 | init_waitqueue_head(&awd.wqh); | |
1252 | awd.done = 0; | |
1253 | ||
1254 | urb->context = &awd; | |
1255 | status = usb_submit_urb(urb, GFP_NOIO); | |
1256 | if (status) { | |
1257 | // something went wrong | |
1258 | usb_free_urb(urb); | |
1259 | return status; | |
1260 | } | |
1261 | ||
1262 | if (!wait_event_timeout(awd.wqh, awd.done, timeout)) { | |
1263 | // timeout | |
fbe2bafc | 1264 | warn("usb_control/bulk_msg: timeout"); |
1da177e4 LT |
1265 | usb_kill_urb(urb); // remove urb safely |
1266 | status = -ETIMEDOUT; | |
1267 | } | |
1268 | else { | |
1269 | status = urb->status; | |
1270 | } | |
1271 | ||
1272 | if (actual_length) { | |
1273 | *actual_length = urb->actual_length; | |
1274 | } | |
1275 | ||
1276 | usb_free_urb(urb); | |
1277 | return status; | |
1278 | } | |
1279 | ||
1280 | /*-------------------------------------------------------------------*/ | |
1281 | // returns status (negative) or length (positive) | |
1282 | static int kaweth_internal_control_msg(struct usb_device *usb_dev, | |
1283 | unsigned int pipe, | |
1284 | struct usb_ctrlrequest *cmd, void *data, | |
1285 | int len, int timeout) | |
1286 | { | |
1287 | struct urb *urb; | |
1288 | int retv; | |
b98b98f9 | 1289 | int length = 0; /* shut up GCC */ |
1da177e4 LT |
1290 | |
1291 | urb = usb_alloc_urb(0, GFP_NOIO); | |
1292 | if (!urb) | |
1293 | return -ENOMEM; | |
1294 | ||
1295 | usb_fill_control_urb(urb, usb_dev, pipe, (unsigned char*)cmd, data, | |
1296 | len, usb_api_blocking_completion, NULL); | |
1297 | ||
1298 | retv = usb_start_wait_urb(urb, timeout, &length); | |
1299 | if (retv < 0) { | |
1300 | return retv; | |
1301 | } | |
1302 | else { | |
1303 | return length; | |
1304 | } | |
1305 | } | |
1306 | ||
1307 | ||
1308 | /**************************************************************** | |
1309 | * kaweth_init | |
1310 | ****************************************************************/ | |
1311 | static int __init kaweth_init(void) | |
1312 | { | |
fbe2bafc | 1313 | dbg("Driver loading"); |
1da177e4 LT |
1314 | return usb_register(&kaweth_driver); |
1315 | } | |
1316 | ||
1317 | /**************************************************************** | |
1318 | * kaweth_exit | |
1319 | ****************************************************************/ | |
1320 | static void __exit kaweth_exit(void) | |
1321 | { | |
1322 | usb_deregister(&kaweth_driver); | |
1323 | } | |
1324 | ||
1325 | module_init(kaweth_init); | |
1326 | module_exit(kaweth_exit); | |
1327 | ||
1328 | ||
1329 | ||
1330 | ||
1331 | ||
1332 | ||
1333 | ||
1334 | ||
1335 |