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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: | |
1da177e4 LT |
34 | * Develop test procedures for USB net interfaces |
35 | * Run test procedures | |
36 | * Fix bugs from previous two steps | |
37 | * Snoop other OSs for any tricks we're not doing | |
1da177e4 LT |
38 | * Reduce arbitrary timeouts |
39 | * Smart multicast support | |
40 | * Temporary MAC change support | |
41 | * Tunable SOFs parameter - ioctl()? | |
42 | * Ethernet stats collection | |
43 | * Code formatting improvements | |
44 | */ | |
45 | ||
46 | #include <linux/module.h> | |
1da177e4 LT |
47 | #include <linux/slab.h> |
48 | #include <linux/string.h> | |
49 | #include <linux/init.h> | |
50 | #include <linux/delay.h> | |
51 | #include <linux/netdevice.h> | |
52 | #include <linux/etherdevice.h> | |
53 | #include <linux/usb.h> | |
54 | #include <linux/types.h> | |
55 | #include <linux/ethtool.h> | |
1da177e4 LT |
56 | #include <linux/dma-mapping.h> |
57 | #include <linux/wait.h> | |
79682499 | 58 | #include <linux/firmware.h> |
1da177e4 | 59 | #include <asm/uaccess.h> |
1da177e4 LT |
60 | #include <asm/byteorder.h> |
61 | ||
62 | #undef DEBUG | |
63 | ||
1da177e4 LT |
64 | #define KAWETH_MTU 1514 |
65 | #define KAWETH_BUF_SIZE 1664 | |
66 | #define KAWETH_TX_TIMEOUT (5 * HZ) | |
67 | #define KAWETH_SCRATCH_SIZE 32 | |
68 | #define KAWETH_FIRMWARE_BUF_SIZE 4096 | |
2b2b2e35 | 69 | #define KAWETH_CONTROL_TIMEOUT (30000) |
1da177e4 LT |
70 | |
71 | #define KAWETH_STATUS_BROKEN 0x0000001 | |
72 | #define KAWETH_STATUS_CLOSING 0x0000002 | |
1a2ea1df ON |
73 | #define KAWETH_STATUS_SUSPENDING 0x0000004 |
74 | ||
75 | #define KAWETH_STATUS_BLOCKED (KAWETH_STATUS_CLOSING | KAWETH_STATUS_SUSPENDING) | |
1da177e4 LT |
76 | |
77 | #define KAWETH_PACKET_FILTER_PROMISCUOUS 0x01 | |
78 | #define KAWETH_PACKET_FILTER_ALL_MULTICAST 0x02 | |
79 | #define KAWETH_PACKET_FILTER_DIRECTED 0x04 | |
80 | #define KAWETH_PACKET_FILTER_BROADCAST 0x08 | |
81 | #define KAWETH_PACKET_FILTER_MULTICAST 0x10 | |
82 | ||
83 | /* Table 7 */ | |
84 | #define KAWETH_COMMAND_GET_ETHERNET_DESC 0x00 | |
85 | #define KAWETH_COMMAND_MULTICAST_FILTERS 0x01 | |
86 | #define KAWETH_COMMAND_SET_PACKET_FILTER 0x02 | |
87 | #define KAWETH_COMMAND_STATISTICS 0x03 | |
88 | #define KAWETH_COMMAND_SET_TEMP_MAC 0x06 | |
89 | #define KAWETH_COMMAND_GET_TEMP_MAC 0x07 | |
90 | #define KAWETH_COMMAND_SET_URB_SIZE 0x08 | |
91 | #define KAWETH_COMMAND_SET_SOFS_WAIT 0x09 | |
92 | #define KAWETH_COMMAND_SCAN 0xFF | |
93 | ||
94 | #define KAWETH_SOFS_TO_WAIT 0x05 | |
95 | ||
96 | #define INTBUFFERSIZE 4 | |
97 | ||
98 | #define STATE_OFFSET 0 | |
99 | #define STATE_MASK 0x40 | |
100 | #define STATE_SHIFT 5 | |
101 | ||
1a2ea1df ON |
102 | #define IS_BLOCKED(s) (s & KAWETH_STATUS_BLOCKED) |
103 | ||
1da177e4 LT |
104 | |
105 | 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>"); | |
106 | MODULE_DESCRIPTION("KL5USB101 USB Ethernet driver"); | |
107 | MODULE_LICENSE("GPL"); | |
79682499 DW |
108 | MODULE_FIRMWARE("kaweth/new_code.bin"); |
109 | MODULE_FIRMWARE("kaweth/new_code_fix.bin"); | |
110 | MODULE_FIRMWARE("kaweth/trigger_code.bin"); | |
111 | MODULE_FIRMWARE("kaweth/trigger_code_fix.bin"); | |
1da177e4 LT |
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 | ||
1da177e4 LT |
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; | |
051b982b | 266 | int retval; |
1da177e4 | 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 | ||
051b982b | 282 | dr->bRequestType = requesttype; |
1da177e4 | 283 | dr->bRequest = request; |
da2bbdcc HH |
284 | dr->wValue = cpu_to_le16(value); |
285 | dr->wIndex = cpu_to_le16(index); | |
286 | dr->wLength = cpu_to_le16(size); | |
1da177e4 | 287 | |
051b982b KC |
288 | retval = kaweth_internal_control_msg(kaweth->dev, |
289 | pipe, | |
290 | dr, | |
291 | data, | |
292 | size, | |
293 | timeout); | |
294 | ||
295 | kfree(dr); | |
296 | return retval; | |
1da177e4 LT |
297 | } |
298 | ||
299 | /**************************************************************** | |
300 | * kaweth_read_configuration | |
301 | ****************************************************************/ | |
302 | static int kaweth_read_configuration(struct kaweth_device *kaweth) | |
303 | { | |
304 | int retval; | |
305 | ||
fbe2bafc | 306 | dbg("Reading kaweth configuration"); |
1da177e4 LT |
307 | |
308 | retval = kaweth_control(kaweth, | |
309 | usb_rcvctrlpipe(kaweth->dev, 0), | |
310 | KAWETH_COMMAND_GET_ETHERNET_DESC, | |
311 | USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE, | |
312 | 0, | |
313 | 0, | |
314 | (void *)&kaweth->configuration, | |
315 | sizeof(kaweth->configuration), | |
316 | KAWETH_CONTROL_TIMEOUT); | |
317 | ||
318 | return retval; | |
319 | } | |
320 | ||
321 | /**************************************************************** | |
322 | * kaweth_set_urb_size | |
323 | ****************************************************************/ | |
324 | static int kaweth_set_urb_size(struct kaweth_device *kaweth, __u16 urb_size) | |
325 | { | |
326 | int retval; | |
327 | ||
fbe2bafc | 328 | dbg("Setting URB size to %d", (unsigned)urb_size); |
1da177e4 LT |
329 | |
330 | retval = kaweth_control(kaweth, | |
331 | usb_sndctrlpipe(kaweth->dev, 0), | |
332 | KAWETH_COMMAND_SET_URB_SIZE, | |
333 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
334 | urb_size, | |
335 | 0, | |
336 | (void *)&kaweth->scratch, | |
337 | 0, | |
338 | KAWETH_CONTROL_TIMEOUT); | |
339 | ||
340 | return retval; | |
341 | } | |
342 | ||
343 | /**************************************************************** | |
344 | * kaweth_set_sofs_wait | |
345 | ****************************************************************/ | |
346 | static int kaweth_set_sofs_wait(struct kaweth_device *kaweth, __u16 sofs_wait) | |
347 | { | |
348 | int retval; | |
349 | ||
fbe2bafc | 350 | dbg("Set SOFS wait to %d", (unsigned)sofs_wait); |
1da177e4 LT |
351 | |
352 | retval = kaweth_control(kaweth, | |
353 | usb_sndctrlpipe(kaweth->dev, 0), | |
354 | KAWETH_COMMAND_SET_SOFS_WAIT, | |
355 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
356 | sofs_wait, | |
357 | 0, | |
358 | (void *)&kaweth->scratch, | |
359 | 0, | |
360 | KAWETH_CONTROL_TIMEOUT); | |
361 | ||
362 | return retval; | |
363 | } | |
364 | ||
365 | /**************************************************************** | |
366 | * kaweth_set_receive_filter | |
367 | ****************************************************************/ | |
368 | static int kaweth_set_receive_filter(struct kaweth_device *kaweth, | |
369 | __u16 receive_filter) | |
370 | { | |
371 | int retval; | |
372 | ||
fbe2bafc | 373 | dbg("Set receive filter to %d", (unsigned)receive_filter); |
1da177e4 LT |
374 | |
375 | retval = kaweth_control(kaweth, | |
376 | usb_sndctrlpipe(kaweth->dev, 0), | |
377 | KAWETH_COMMAND_SET_PACKET_FILTER, | |
378 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
379 | receive_filter, | |
380 | 0, | |
381 | (void *)&kaweth->scratch, | |
382 | 0, | |
383 | KAWETH_CONTROL_TIMEOUT); | |
384 | ||
385 | return retval; | |
386 | } | |
387 | ||
388 | /**************************************************************** | |
389 | * kaweth_download_firmware | |
390 | ****************************************************************/ | |
391 | static int kaweth_download_firmware(struct kaweth_device *kaweth, | |
79682499 | 392 | const char *fwname, |
1da177e4 LT |
393 | __u8 interrupt, |
394 | __u8 type) | |
395 | { | |
79682499 DW |
396 | const struct firmware *fw; |
397 | int data_len; | |
398 | int ret; | |
399 | ||
400 | ret = request_firmware(&fw, fwname, &kaweth->dev->dev); | |
401 | if (ret) { | |
402 | err("Firmware request failed\n"); | |
403 | return ret; | |
404 | } | |
405 | ||
406 | if (fw->size > KAWETH_FIRMWARE_BUF_SIZE) { | |
407 | err("Firmware too big: %zu", fw->size); | |
1da177e4 LT |
408 | return -ENOSPC; |
409 | } | |
79682499 DW |
410 | data_len = fw->size; |
411 | memcpy(kaweth->firmware_buf, fw->data, fw->size); | |
1da177e4 | 412 | |
79682499 | 413 | release_firmware(fw); |
1da177e4 LT |
414 | |
415 | kaweth->firmware_buf[2] = (data_len & 0xFF) - 7; | |
416 | kaweth->firmware_buf[3] = data_len >> 8; | |
417 | kaweth->firmware_buf[4] = type; | |
418 | kaweth->firmware_buf[5] = interrupt; | |
419 | ||
fbe2bafc | 420 | dbg("High: %i, Low:%i", kaweth->firmware_buf[3], |
1da177e4 LT |
421 | kaweth->firmware_buf[2]); |
422 | ||
fbe2bafc | 423 | dbg("Downloading firmware at %p to kaweth device at %p", |
79682499 | 424 | fw->data, kaweth); |
fbe2bafc | 425 | dbg("Firmware length: %d", data_len); |
1da177e4 LT |
426 | |
427 | return kaweth_control(kaweth, | |
428 | usb_sndctrlpipe(kaweth->dev, 0), | |
429 | KAWETH_COMMAND_SCAN, | |
430 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
431 | 0, | |
432 | 0, | |
433 | (void *)kaweth->firmware_buf, | |
434 | data_len, | |
435 | KAWETH_CONTROL_TIMEOUT); | |
436 | } | |
437 | ||
438 | /**************************************************************** | |
439 | * kaweth_trigger_firmware | |
440 | ****************************************************************/ | |
441 | static int kaweth_trigger_firmware(struct kaweth_device *kaweth, | |
442 | __u8 interrupt) | |
443 | { | |
444 | kaweth->firmware_buf[0] = 0xB6; | |
445 | kaweth->firmware_buf[1] = 0xC3; | |
446 | kaweth->firmware_buf[2] = 0x01; | |
447 | kaweth->firmware_buf[3] = 0x00; | |
448 | kaweth->firmware_buf[4] = 0x06; | |
449 | kaweth->firmware_buf[5] = interrupt; | |
450 | kaweth->firmware_buf[6] = 0x00; | |
451 | kaweth->firmware_buf[7] = 0x00; | |
452 | ||
fbe2bafc | 453 | dbg("Triggering firmware"); |
1da177e4 LT |
454 | |
455 | return kaweth_control(kaweth, | |
456 | usb_sndctrlpipe(kaweth->dev, 0), | |
457 | KAWETH_COMMAND_SCAN, | |
458 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
459 | 0, | |
460 | 0, | |
461 | (void *)kaweth->firmware_buf, | |
462 | 8, | |
463 | KAWETH_CONTROL_TIMEOUT); | |
464 | } | |
465 | ||
466 | /**************************************************************** | |
467 | * kaweth_reset | |
468 | ****************************************************************/ | |
469 | static int kaweth_reset(struct kaweth_device *kaweth) | |
470 | { | |
471 | int result; | |
472 | ||
fbe2bafc | 473 | dbg("kaweth_reset(%p)", kaweth); |
1da177e4 LT |
474 | result = kaweth_control(kaweth, |
475 | usb_sndctrlpipe(kaweth->dev, 0), | |
476 | USB_REQ_SET_CONFIGURATION, | |
477 | 0, | |
478 | kaweth->dev->config[0].desc.bConfigurationValue, | |
479 | 0, | |
480 | NULL, | |
481 | 0, | |
482 | KAWETH_CONTROL_TIMEOUT); | |
483 | ||
f2d45cd9 | 484 | mdelay(10); |
1da177e4 | 485 | |
fbe2bafc | 486 | dbg("kaweth_reset() returns %d.",result); |
1da177e4 LT |
487 | |
488 | return result; | |
489 | } | |
490 | ||
7d12e780 | 491 | static void kaweth_usb_receive(struct urb *); |
55016f10 | 492 | static int kaweth_resubmit_rx_urb(struct kaweth_device *, gfp_t); |
1da177e4 LT |
493 | |
494 | /**************************************************************** | |
495 | int_callback | |
496 | *****************************************************************/ | |
497 | ||
55016f10 | 498 | static void kaweth_resubmit_int_urb(struct kaweth_device *kaweth, gfp_t mf) |
1da177e4 LT |
499 | { |
500 | int status; | |
501 | ||
502 | status = usb_submit_urb (kaweth->irq_urb, mf); | |
503 | if (unlikely(status == -ENOMEM)) { | |
504 | kaweth->suspend_lowmem_ctrl = 1; | |
505 | schedule_delayed_work(&kaweth->lowmem_work, HZ/4); | |
506 | } else { | |
507 | kaweth->suspend_lowmem_ctrl = 0; | |
508 | } | |
509 | ||
510 | if (status) | |
511 | err ("can't resubmit intr, %s-%s, status %d", | |
512 | kaweth->dev->bus->bus_name, | |
513 | kaweth->dev->devpath, status); | |
514 | } | |
515 | ||
7d12e780 | 516 | static void int_callback(struct urb *u) |
1da177e4 LT |
517 | { |
518 | struct kaweth_device *kaweth = u->context; | |
519 | int act_state; | |
c94cb314 | 520 | int status = u->status; |
1da177e4 | 521 | |
c94cb314 | 522 | switch (status) { |
1da177e4 LT |
523 | case 0: /* success */ |
524 | break; | |
525 | case -ECONNRESET: /* unlink */ | |
526 | case -ENOENT: | |
527 | case -ESHUTDOWN: | |
528 | return; | |
529 | /* -EPIPE: should clear the halt */ | |
530 | default: /* error */ | |
531 | goto resubmit; | |
532 | } | |
533 | ||
534 | /* we check the link state to report changes */ | |
535 | if (kaweth->linkstate != (act_state = ( kaweth->intbuffer[STATE_OFFSET] | STATE_MASK) >> STATE_SHIFT)) { | |
58125f95 | 536 | if (act_state) |
1da177e4 LT |
537 | netif_carrier_on(kaweth->net); |
538 | else | |
539 | netif_carrier_off(kaweth->net); | |
540 | ||
541 | kaweth->linkstate = act_state; | |
542 | } | |
543 | resubmit: | |
544 | kaweth_resubmit_int_urb(kaweth, GFP_ATOMIC); | |
545 | } | |
546 | ||
c4028958 | 547 | static void kaweth_resubmit_tl(struct work_struct *work) |
1da177e4 | 548 | { |
c4028958 DH |
549 | struct kaweth_device *kaweth = |
550 | container_of(work, struct kaweth_device, lowmem_work.work); | |
1da177e4 | 551 | |
1a2ea1df | 552 | if (IS_BLOCKED(kaweth->status)) |
1da177e4 LT |
553 | return; |
554 | ||
555 | if (kaweth->suspend_lowmem_rx) | |
556 | kaweth_resubmit_rx_urb(kaweth, GFP_NOIO); | |
557 | ||
558 | if (kaweth->suspend_lowmem_ctrl) | |
559 | kaweth_resubmit_int_urb(kaweth, GFP_NOIO); | |
560 | } | |
561 | ||
562 | ||
563 | /**************************************************************** | |
564 | * kaweth_resubmit_rx_urb | |
565 | ****************************************************************/ | |
566 | static int kaweth_resubmit_rx_urb(struct kaweth_device *kaweth, | |
55016f10 | 567 | gfp_t mem_flags) |
1da177e4 LT |
568 | { |
569 | int result; | |
570 | ||
571 | usb_fill_bulk_urb(kaweth->rx_urb, | |
572 | kaweth->dev, | |
573 | usb_rcvbulkpipe(kaweth->dev, 1), | |
574 | kaweth->rx_buf, | |
575 | KAWETH_BUF_SIZE, | |
576 | kaweth_usb_receive, | |
577 | kaweth); | |
578 | kaweth->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
579 | kaweth->rx_urb->transfer_dma = kaweth->rxbufferhandle; | |
580 | ||
581 | if((result = usb_submit_urb(kaweth->rx_urb, mem_flags))) { | |
582 | if (result == -ENOMEM) { | |
583 | kaweth->suspend_lowmem_rx = 1; | |
584 | schedule_delayed_work(&kaweth->lowmem_work, HZ/4); | |
585 | } | |
fbe2bafc | 586 | err("resubmitting rx_urb %d failed", result); |
1da177e4 LT |
587 | } else { |
588 | kaweth->suspend_lowmem_rx = 0; | |
589 | } | |
590 | ||
591 | return result; | |
592 | } | |
593 | ||
594 | static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth); | |
595 | ||
596 | /**************************************************************** | |
597 | * kaweth_usb_receive | |
598 | ****************************************************************/ | |
7d12e780 | 599 | static void kaweth_usb_receive(struct urb *urb) |
1da177e4 LT |
600 | { |
601 | struct kaweth_device *kaweth = urb->context; | |
602 | struct net_device *net = kaweth->net; | |
c94cb314 | 603 | int status = urb->status; |
1da177e4 LT |
604 | |
605 | int count = urb->actual_length; | |
606 | int count2 = urb->transfer_buffer_length; | |
607 | ||
608 | __u16 pkt_len = le16_to_cpup((__le16 *)kaweth->rx_buf); | |
609 | ||
610 | struct sk_buff *skb; | |
611 | ||
710b523a LF |
612 | if (unlikely(status == -EPIPE)) { |
613 | kaweth->stats.rx_errors++; | |
1da177e4 LT |
614 | kaweth->end = 1; |
615 | wake_up(&kaweth->term_wait); | |
710b523a | 616 | dbg("Status was -EPIPE."); |
1da177e4 LT |
617 | return; |
618 | } | |
710b523a LF |
619 | if (unlikely(status == -ECONNRESET || status == -ESHUTDOWN)) { |
620 | /* we are killed - set a flag and wake the disconnect handler */ | |
621 | kaweth->end = 1; | |
622 | wake_up(&kaweth->term_wait); | |
623 | dbg("Status was -ECONNRESET or -ESHUTDOWN."); | |
624 | return; | |
625 | } | |
626 | if (unlikely(status == -EPROTO || status == -ETIME || | |
627 | status == -EILSEQ)) { | |
628 | kaweth->stats.rx_errors++; | |
629 | dbg("Status was -EPROTO, -ETIME, or -EILSEQ."); | |
630 | return; | |
631 | } | |
632 | if (unlikely(status == -EOVERFLOW)) { | |
633 | kaweth->stats.rx_errors++; | |
634 | dbg("Status was -EOVERFLOW."); | |
635 | } | |
1a2ea1df ON |
636 | spin_lock(&kaweth->device_lock); |
637 | if (IS_BLOCKED(kaweth->status)) { | |
638 | spin_unlock(&kaweth->device_lock); | |
1da177e4 | 639 | return; |
1a2ea1df ON |
640 | } |
641 | spin_unlock(&kaweth->device_lock); | |
1da177e4 | 642 | |
c94cb314 | 643 | if(status && status != -EREMOTEIO && count != 1) { |
fbe2bafc | 644 | err("%s RX status: %d count: %d packet_len: %d", |
1da177e4 | 645 | net->name, |
c94cb314 | 646 | status, |
1da177e4 LT |
647 | count, |
648 | (int)pkt_len); | |
649 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | |
650 | return; | |
651 | } | |
652 | ||
653 | if(kaweth->net && (count > 2)) { | |
654 | if(pkt_len > (count - 2)) { | |
fbe2bafc ON |
655 | err("Packet length too long for USB frame (pkt_len: %x, count: %x)",pkt_len, count); |
656 | err("Packet len & 2047: %x", pkt_len & 2047); | |
657 | err("Count 2: %x", count2); | |
1da177e4 LT |
658 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); |
659 | return; | |
660 | } | |
661 | ||
662 | if(!(skb = dev_alloc_skb(pkt_len+2))) { | |
663 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | |
664 | return; | |
665 | } | |
666 | ||
667 | skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */ | |
668 | ||
8c7b7faa | 669 | skb_copy_to_linear_data(skb, kaweth->rx_buf + 2, pkt_len); |
1da177e4 LT |
670 | |
671 | skb_put(skb, pkt_len); | |
672 | ||
673 | skb->protocol = eth_type_trans(skb, net); | |
674 | ||
675 | netif_rx(skb); | |
676 | ||
677 | kaweth->stats.rx_packets++; | |
678 | kaweth->stats.rx_bytes += pkt_len; | |
679 | } | |
680 | ||
681 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | |
682 | } | |
683 | ||
684 | /**************************************************************** | |
685 | * kaweth_open | |
686 | ****************************************************************/ | |
687 | static int kaweth_open(struct net_device *net) | |
688 | { | |
689 | struct kaweth_device *kaweth = netdev_priv(net); | |
690 | int res; | |
691 | ||
fbe2bafc | 692 | dbg("Opening network device."); |
1da177e4 | 693 | |
b98b98f9 ON |
694 | res = usb_autopm_get_interface(kaweth->intf); |
695 | if (res) { | |
696 | err("Interface cannot be resumed."); | |
697 | return -EIO; | |
698 | } | |
1da177e4 LT |
699 | res = kaweth_resubmit_rx_urb(kaweth, GFP_KERNEL); |
700 | if (res) | |
b98b98f9 | 701 | goto err_out; |
1da177e4 LT |
702 | |
703 | usb_fill_int_urb( | |
704 | kaweth->irq_urb, | |
705 | kaweth->dev, | |
706 | usb_rcvintpipe(kaweth->dev, 3), | |
707 | kaweth->intbuffer, | |
708 | INTBUFFERSIZE, | |
709 | int_callback, | |
710 | kaweth, | |
711 | 250); /* overriding the descriptor */ | |
712 | kaweth->irq_urb->transfer_dma = kaweth->intbufferhandle; | |
713 | kaweth->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
714 | ||
715 | res = usb_submit_urb(kaweth->irq_urb, GFP_KERNEL); | |
716 | if (res) { | |
717 | usb_kill_urb(kaweth->rx_urb); | |
b98b98f9 | 718 | goto err_out; |
1da177e4 | 719 | } |
1a2ea1df | 720 | kaweth->opened = 1; |
1da177e4 LT |
721 | |
722 | netif_start_queue(net); | |
723 | ||
724 | kaweth_async_set_rx_mode(kaweth); | |
725 | return 0; | |
b98b98f9 ON |
726 | |
727 | err_out: | |
728 | usb_autopm_enable(kaweth->intf); | |
729 | return -EIO; | |
1da177e4 LT |
730 | } |
731 | ||
732 | /**************************************************************** | |
b98b98f9 | 733 | * kaweth_kill_urbs |
1da177e4 | 734 | ****************************************************************/ |
1a2ea1df | 735 | static void kaweth_kill_urbs(struct kaweth_device *kaweth) |
1da177e4 | 736 | { |
1da177e4 LT |
737 | usb_kill_urb(kaweth->irq_urb); |
738 | usb_kill_urb(kaweth->rx_urb); | |
d23b536b | 739 | usb_kill_urb(kaweth->tx_urb); |
1da177e4 | 740 | |
4bb073c0 | 741 | cancel_delayed_work_sync(&kaweth->lowmem_work); |
1da177e4 LT |
742 | |
743 | /* a scheduled work may have resubmitted, | |
744 | we hit them again */ | |
745 | usb_kill_urb(kaweth->irq_urb); | |
746 | usb_kill_urb(kaweth->rx_urb); | |
1a2ea1df ON |
747 | } |
748 | ||
749 | /**************************************************************** | |
750 | * kaweth_close | |
751 | ****************************************************************/ | |
752 | static int kaweth_close(struct net_device *net) | |
753 | { | |
754 | struct kaweth_device *kaweth = netdev_priv(net); | |
755 | ||
756 | netif_stop_queue(net); | |
757 | kaweth->opened = 0; | |
758 | ||
759 | kaweth->status |= KAWETH_STATUS_CLOSING; | |
760 | ||
761 | kaweth_kill_urbs(kaweth); | |
1da177e4 LT |
762 | |
763 | kaweth->status &= ~KAWETH_STATUS_CLOSING; | |
764 | ||
b98b98f9 ON |
765 | usb_autopm_enable(kaweth->intf); |
766 | ||
1da177e4 LT |
767 | return 0; |
768 | } | |
769 | ||
770 | static void kaweth_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) | |
771 | { | |
b3ebd522 | 772 | struct kaweth_device *kaweth = netdev_priv(dev); |
1da177e4 LT |
773 | |
774 | strlcpy(info->driver, driver_name, sizeof(info->driver)); | |
b3ebd522 ON |
775 | usb_make_path(kaweth->dev, info->bus_info, sizeof (info->bus_info)); |
776 | } | |
777 | ||
778 | static u32 kaweth_get_link(struct net_device *dev) | |
779 | { | |
780 | struct kaweth_device *kaweth = netdev_priv(dev); | |
781 | ||
782 | return kaweth->linkstate; | |
1da177e4 LT |
783 | } |
784 | ||
0fc0b732 | 785 | static const struct ethtool_ops ops = { |
b3ebd522 ON |
786 | .get_drvinfo = kaweth_get_drvinfo, |
787 | .get_link = kaweth_get_link | |
1da177e4 LT |
788 | }; |
789 | ||
790 | /**************************************************************** | |
791 | * kaweth_usb_transmit_complete | |
792 | ****************************************************************/ | |
7d12e780 | 793 | static void kaweth_usb_transmit_complete(struct urb *urb) |
1da177e4 LT |
794 | { |
795 | struct kaweth_device *kaweth = urb->context; | |
796 | struct sk_buff *skb = kaweth->tx_skb; | |
c94cb314 | 797 | int status = urb->status; |
1da177e4 | 798 | |
c94cb314 ON |
799 | if (unlikely(status != 0)) |
800 | if (status != -ENOENT) | |
801 | dbg("%s: TX status %d.", kaweth->net->name, status); | |
1da177e4 LT |
802 | |
803 | netif_wake_queue(kaweth->net); | |
804 | dev_kfree_skb_irq(skb); | |
805 | } | |
806 | ||
807 | /**************************************************************** | |
808 | * kaweth_start_xmit | |
809 | ****************************************************************/ | |
25a79c41 SH |
810 | static netdev_tx_t kaweth_start_xmit(struct sk_buff *skb, |
811 | struct net_device *net) | |
1da177e4 LT |
812 | { |
813 | struct kaweth_device *kaweth = netdev_priv(net); | |
814 | __le16 *private_header; | |
815 | ||
816 | int res; | |
817 | ||
4ff61c8f | 818 | spin_lock_irq(&kaweth->device_lock); |
1da177e4 | 819 | |
1da177e4 LT |
820 | kaweth_async_set_rx_mode(kaweth); |
821 | netif_stop_queue(net); | |
1a2ea1df ON |
822 | if (IS_BLOCKED(kaweth->status)) { |
823 | goto skip; | |
824 | } | |
1da177e4 LT |
825 | |
826 | /* We now decide whether we can put our special header into the sk_buff */ | |
827 | if (skb_cloned(skb) || skb_headroom(skb) < 2) { | |
828 | /* no such luck - we make our own */ | |
829 | struct sk_buff *copied_skb; | |
830 | copied_skb = skb_copy_expand(skb, 2, 0, GFP_ATOMIC); | |
831 | dev_kfree_skb_irq(skb); | |
832 | skb = copied_skb; | |
833 | if (!copied_skb) { | |
834 | kaweth->stats.tx_errors++; | |
835 | netif_start_queue(net); | |
4ff61c8f | 836 | spin_unlock_irq(&kaweth->device_lock); |
6ed10654 | 837 | return NETDEV_TX_OK; |
1da177e4 LT |
838 | } |
839 | } | |
840 | ||
841 | private_header = (__le16 *)__skb_push(skb, 2); | |
842 | *private_header = cpu_to_le16(skb->len-2); | |
843 | kaweth->tx_skb = skb; | |
844 | ||
845 | usb_fill_bulk_urb(kaweth->tx_urb, | |
846 | kaweth->dev, | |
847 | usb_sndbulkpipe(kaweth->dev, 2), | |
848 | private_header, | |
849 | skb->len, | |
850 | kaweth_usb_transmit_complete, | |
851 | kaweth); | |
852 | kaweth->end = 0; | |
1da177e4 LT |
853 | |
854 | if((res = usb_submit_urb(kaweth->tx_urb, GFP_ATOMIC))) | |
855 | { | |
4dc89948 | 856 | dev_warn(&net->dev, "kaweth failed tx_urb %d\n", res); |
1a2ea1df | 857 | skip: |
1da177e4 LT |
858 | kaweth->stats.tx_errors++; |
859 | ||
860 | netif_start_queue(net); | |
861 | dev_kfree_skb_irq(skb); | |
862 | } | |
863 | else | |
864 | { | |
865 | kaweth->stats.tx_packets++; | |
866 | kaweth->stats.tx_bytes += skb->len; | |
867 | net->trans_start = jiffies; | |
868 | } | |
869 | ||
4ff61c8f | 870 | spin_unlock_irq(&kaweth->device_lock); |
1da177e4 | 871 | |
6ed10654 | 872 | return NETDEV_TX_OK; |
1da177e4 LT |
873 | } |
874 | ||
875 | /**************************************************************** | |
876 | * kaweth_set_rx_mode | |
877 | ****************************************************************/ | |
878 | static void kaweth_set_rx_mode(struct net_device *net) | |
879 | { | |
880 | struct kaweth_device *kaweth = netdev_priv(net); | |
881 | ||
882 | __u16 packet_filter_bitmap = KAWETH_PACKET_FILTER_DIRECTED | | |
883 | KAWETH_PACKET_FILTER_BROADCAST | | |
884 | KAWETH_PACKET_FILTER_MULTICAST; | |
885 | ||
fbe2bafc | 886 | dbg("Setting Rx mode to %d", packet_filter_bitmap); |
1da177e4 LT |
887 | |
888 | netif_stop_queue(net); | |
889 | ||
890 | if (net->flags & IFF_PROMISC) { | |
891 | packet_filter_bitmap |= KAWETH_PACKET_FILTER_PROMISCUOUS; | |
892 | } | |
893 | else if ((net->mc_count) || (net->flags & IFF_ALLMULTI)) { | |
894 | packet_filter_bitmap |= KAWETH_PACKET_FILTER_ALL_MULTICAST; | |
895 | } | |
896 | ||
897 | kaweth->packet_filter_bitmap = packet_filter_bitmap; | |
898 | netif_wake_queue(net); | |
899 | } | |
900 | ||
901 | /**************************************************************** | |
902 | * kaweth_async_set_rx_mode | |
903 | ****************************************************************/ | |
904 | static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth) | |
905 | { | |
710b523a | 906 | int result; |
1da177e4 | 907 | __u16 packet_filter_bitmap = kaweth->packet_filter_bitmap; |
710b523a | 908 | |
1da177e4 LT |
909 | kaweth->packet_filter_bitmap = 0; |
910 | if (packet_filter_bitmap == 0) | |
911 | return; | |
912 | ||
710b523a LF |
913 | if (in_interrupt()) |
914 | return; | |
915 | ||
1da177e4 LT |
916 | result = kaweth_control(kaweth, |
917 | usb_sndctrlpipe(kaweth->dev, 0), | |
918 | KAWETH_COMMAND_SET_PACKET_FILTER, | |
919 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
920 | packet_filter_bitmap, | |
921 | 0, | |
922 | (void *)&kaweth->scratch, | |
923 | 0, | |
924 | KAWETH_CONTROL_TIMEOUT); | |
925 | ||
926 | if(result < 0) { | |
fbe2bafc | 927 | err("Failed to set Rx mode: %d", result); |
1da177e4 LT |
928 | } |
929 | else { | |
fbe2bafc | 930 | dbg("Set Rx mode to %d", packet_filter_bitmap); |
1da177e4 | 931 | } |
1da177e4 LT |
932 | } |
933 | ||
934 | /**************************************************************** | |
935 | * kaweth_netdev_stats | |
936 | ****************************************************************/ | |
937 | static struct net_device_stats *kaweth_netdev_stats(struct net_device *dev) | |
938 | { | |
939 | struct kaweth_device *kaweth = netdev_priv(dev); | |
940 | return &kaweth->stats; | |
941 | } | |
942 | ||
943 | /**************************************************************** | |
944 | * kaweth_tx_timeout | |
945 | ****************************************************************/ | |
946 | static void kaweth_tx_timeout(struct net_device *net) | |
947 | { | |
948 | struct kaweth_device *kaweth = netdev_priv(net); | |
949 | ||
4dc89948 | 950 | dev_warn(&net->dev, "%s: Tx timed out. Resetting.\n", net->name); |
1da177e4 LT |
951 | kaweth->stats.tx_errors++; |
952 | net->trans_start = jiffies; | |
953 | ||
954 | usb_unlink_urb(kaweth->tx_urb); | |
955 | } | |
956 | ||
1a2ea1df ON |
957 | /**************************************************************** |
958 | * kaweth_suspend | |
959 | ****************************************************************/ | |
960 | static int kaweth_suspend(struct usb_interface *intf, pm_message_t message) | |
961 | { | |
962 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
963 | unsigned long flags; | |
964 | ||
b98b98f9 | 965 | dbg("Suspending device"); |
1a2ea1df ON |
966 | spin_lock_irqsave(&kaweth->device_lock, flags); |
967 | kaweth->status |= KAWETH_STATUS_SUSPENDING; | |
968 | spin_unlock_irqrestore(&kaweth->device_lock, flags); | |
969 | ||
970 | kaweth_kill_urbs(kaweth); | |
971 | return 0; | |
972 | } | |
973 | ||
974 | /**************************************************************** | |
975 | * kaweth_resume | |
976 | ****************************************************************/ | |
977 | static int kaweth_resume(struct usb_interface *intf) | |
978 | { | |
979 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
980 | unsigned long flags; | |
981 | ||
b98b98f9 | 982 | dbg("Resuming device"); |
1a2ea1df ON |
983 | spin_lock_irqsave(&kaweth->device_lock, flags); |
984 | kaweth->status &= ~KAWETH_STATUS_SUSPENDING; | |
985 | spin_unlock_irqrestore(&kaweth->device_lock, flags); | |
986 | ||
987 | if (!kaweth->opened) | |
988 | return 0; | |
989 | kaweth_resubmit_rx_urb(kaweth, GFP_NOIO); | |
990 | kaweth_resubmit_int_urb(kaweth, GFP_NOIO); | |
991 | ||
992 | return 0; | |
993 | } | |
994 | ||
1da177e4 LT |
995 | /**************************************************************** |
996 | * kaweth_probe | |
997 | ****************************************************************/ | |
321ea8b2 ON |
998 | |
999 | ||
1000 | static const struct net_device_ops kaweth_netdev_ops = { | |
1001 | .ndo_open = kaweth_open, | |
1002 | .ndo_stop = kaweth_close, | |
1003 | .ndo_start_xmit = kaweth_start_xmit, | |
1004 | .ndo_tx_timeout = kaweth_tx_timeout, | |
1005 | .ndo_set_multicast_list = kaweth_set_rx_mode, | |
1006 | .ndo_get_stats = kaweth_netdev_stats, | |
635ecaa7 | 1007 | .ndo_change_mtu = eth_change_mtu, |
240c102d BH |
1008 | .ndo_set_mac_address = eth_mac_addr, |
1009 | .ndo_validate_addr = eth_validate_addr, | |
321ea8b2 ON |
1010 | }; |
1011 | ||
1da177e4 LT |
1012 | static int kaweth_probe( |
1013 | struct usb_interface *intf, | |
1014 | const struct usb_device_id *id /* from id_table */ | |
1015 | ) | |
1016 | { | |
1017 | struct usb_device *dev = interface_to_usbdev(intf); | |
1018 | struct kaweth_device *kaweth; | |
1019 | struct net_device *netdev; | |
1020 | const eth_addr_t bcast_addr = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; | |
1021 | int result = 0; | |
1022 | ||
fbe2bafc | 1023 | dbg("Kawasaki Device Probe (Device number:%d): 0x%4.4x:0x%4.4x:0x%4.4x", |
1da177e4 LT |
1024 | dev->devnum, |
1025 | le16_to_cpu(dev->descriptor.idVendor), | |
1026 | le16_to_cpu(dev->descriptor.idProduct), | |
1027 | le16_to_cpu(dev->descriptor.bcdDevice)); | |
1028 | ||
fbe2bafc | 1029 | dbg("Device at %p", dev); |
1da177e4 | 1030 | |
fbe2bafc | 1031 | dbg("Descriptor length: %x type: %x", |
1da177e4 LT |
1032 | (int)dev->descriptor.bLength, |
1033 | (int)dev->descriptor.bDescriptorType); | |
1034 | ||
1035 | netdev = alloc_etherdev(sizeof(*kaweth)); | |
1036 | if (!netdev) | |
1037 | return -ENOMEM; | |
1038 | ||
1039 | kaweth = netdev_priv(netdev); | |
1040 | kaweth->dev = dev; | |
1041 | kaweth->net = netdev; | |
1042 | ||
1043 | spin_lock_init(&kaweth->device_lock); | |
1044 | init_waitqueue_head(&kaweth->term_wait); | |
1045 | ||
fbe2bafc | 1046 | dbg("Resetting."); |
1da177e4 LT |
1047 | |
1048 | kaweth_reset(kaweth); | |
1049 | ||
1050 | /* | |
1051 | * If high byte of bcdDevice is nonzero, firmware is already | |
1052 | * downloaded. Don't try to do it again, or we'll hang the device. | |
1053 | */ | |
1054 | ||
1055 | if (le16_to_cpu(dev->descriptor.bcdDevice) >> 8) { | |
880c9c66 | 1056 | dev_info(&intf->dev, "Firmware present in device.\n"); |
1da177e4 LT |
1057 | } else { |
1058 | /* Download the firmware */ | |
880c9c66 | 1059 | dev_info(&intf->dev, "Downloading firmware...\n"); |
1da177e4 LT |
1060 | kaweth->firmware_buf = (__u8 *)__get_free_page(GFP_KERNEL); |
1061 | if ((result = kaweth_download_firmware(kaweth, | |
79682499 | 1062 | "kaweth/new_code.bin", |
1da177e4 LT |
1063 | 100, |
1064 | 2)) < 0) { | |
fbe2bafc | 1065 | err("Error downloading firmware (%d)", result); |
1da177e4 LT |
1066 | goto err_fw; |
1067 | } | |
1068 | ||
1069 | if ((result = kaweth_download_firmware(kaweth, | |
79682499 | 1070 | "kaweth/new_code_fix.bin", |
1da177e4 LT |
1071 | 100, |
1072 | 3)) < 0) { | |
fbe2bafc | 1073 | err("Error downloading firmware fix (%d)", result); |
1da177e4 LT |
1074 | goto err_fw; |
1075 | } | |
1076 | ||
1077 | if ((result = kaweth_download_firmware(kaweth, | |
79682499 | 1078 | "kaweth/trigger_code.bin", |
1da177e4 LT |
1079 | 126, |
1080 | 2)) < 0) { | |
fbe2bafc | 1081 | err("Error downloading trigger code (%d)", result); |
1da177e4 LT |
1082 | goto err_fw; |
1083 | ||
1084 | } | |
1085 | ||
1086 | if ((result = kaweth_download_firmware(kaweth, | |
79682499 | 1087 | "kaweth/trigger_code_fix.bin", |
1da177e4 LT |
1088 | 126, |
1089 | 3)) < 0) { | |
fbe2bafc | 1090 | err("Error downloading trigger code fix (%d)", result); |
1da177e4 LT |
1091 | goto err_fw; |
1092 | } | |
1093 | ||
1094 | ||
1095 | if ((result = kaweth_trigger_firmware(kaweth, 126)) < 0) { | |
fbe2bafc | 1096 | err("Error triggering firmware (%d)", result); |
1da177e4 LT |
1097 | goto err_fw; |
1098 | } | |
1099 | ||
1100 | /* Device will now disappear for a moment... */ | |
880c9c66 | 1101 | dev_info(&intf->dev, "Firmware loaded. I'll be back...\n"); |
1da177e4 LT |
1102 | err_fw: |
1103 | free_page((unsigned long)kaweth->firmware_buf); | |
1104 | free_netdev(netdev); | |
1105 | return -EIO; | |
1106 | } | |
1107 | ||
1108 | result = kaweth_read_configuration(kaweth); | |
1109 | ||
1110 | if(result < 0) { | |
fbe2bafc | 1111 | err("Error reading configuration (%d), no net device created", result); |
1da177e4 LT |
1112 | goto err_free_netdev; |
1113 | } | |
1114 | ||
880c9c66 GKH |
1115 | dev_info(&intf->dev, "Statistics collection: %x\n", kaweth->configuration.statistics_mask); |
1116 | dev_info(&intf->dev, "Multicast filter limit: %x\n", kaweth->configuration.max_multicast_filters & ((1 << 15) - 1)); | |
1117 | dev_info(&intf->dev, "MTU: %d\n", le16_to_cpu(kaweth->configuration.segment_size)); | |
1118 | dev_info(&intf->dev, "Read MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n", | |
1da177e4 LT |
1119 | (int)kaweth->configuration.hw_addr[0], |
1120 | (int)kaweth->configuration.hw_addr[1], | |
1121 | (int)kaweth->configuration.hw_addr[2], | |
1122 | (int)kaweth->configuration.hw_addr[3], | |
1123 | (int)kaweth->configuration.hw_addr[4], | |
1124 | (int)kaweth->configuration.hw_addr[5]); | |
1125 | ||
1126 | if(!memcmp(&kaweth->configuration.hw_addr, | |
1127 | &bcast_addr, | |
1128 | sizeof(bcast_addr))) { | |
fbe2bafc | 1129 | err("Firmware not functioning properly, no net device created"); |
1da177e4 LT |
1130 | goto err_free_netdev; |
1131 | } | |
1132 | ||
1133 | if(kaweth_set_urb_size(kaweth, KAWETH_BUF_SIZE) < 0) { | |
fbe2bafc | 1134 | dbg("Error setting URB size"); |
1da177e4 LT |
1135 | goto err_free_netdev; |
1136 | } | |
1137 | ||
1138 | if(kaweth_set_sofs_wait(kaweth, KAWETH_SOFS_TO_WAIT) < 0) { | |
fbe2bafc | 1139 | err("Error setting SOFS wait"); |
1da177e4 LT |
1140 | goto err_free_netdev; |
1141 | } | |
1142 | ||
1143 | result = kaweth_set_receive_filter(kaweth, | |
1144 | KAWETH_PACKET_FILTER_DIRECTED | | |
1145 | KAWETH_PACKET_FILTER_BROADCAST | | |
1146 | KAWETH_PACKET_FILTER_MULTICAST); | |
1147 | ||
1148 | if(result < 0) { | |
fbe2bafc | 1149 | err("Error setting receive filter"); |
1da177e4 LT |
1150 | goto err_free_netdev; |
1151 | } | |
1152 | ||
fbe2bafc | 1153 | dbg("Initializing net device."); |
1da177e4 | 1154 | |
b98b98f9 ON |
1155 | kaweth->intf = intf; |
1156 | ||
1da177e4 LT |
1157 | kaweth->tx_urb = usb_alloc_urb(0, GFP_KERNEL); |
1158 | if (!kaweth->tx_urb) | |
1159 | goto err_free_netdev; | |
1160 | kaweth->rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1161 | if (!kaweth->rx_urb) | |
1162 | goto err_only_tx; | |
1163 | kaweth->irq_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1164 | if (!kaweth->irq_urb) | |
1165 | goto err_tx_and_rx; | |
1166 | ||
1167 | kaweth->intbuffer = usb_buffer_alloc( kaweth->dev, | |
1168 | INTBUFFERSIZE, | |
1169 | GFP_KERNEL, | |
1170 | &kaweth->intbufferhandle); | |
1171 | if (!kaweth->intbuffer) | |
1172 | goto err_tx_and_rx_and_irq; | |
1173 | kaweth->rx_buf = usb_buffer_alloc( kaweth->dev, | |
1174 | KAWETH_BUF_SIZE, | |
1175 | GFP_KERNEL, | |
1176 | &kaweth->rxbufferhandle); | |
1177 | if (!kaweth->rx_buf) | |
1178 | goto err_all_but_rxbuf; | |
1179 | ||
1180 | memcpy(netdev->broadcast, &bcast_addr, sizeof(bcast_addr)); | |
1181 | memcpy(netdev->dev_addr, &kaweth->configuration.hw_addr, | |
1182 | sizeof(kaweth->configuration.hw_addr)); | |
1183 | ||
321ea8b2 | 1184 | netdev->netdev_ops = &kaweth_netdev_ops; |
1da177e4 | 1185 | netdev->watchdog_timeo = KAWETH_TX_TIMEOUT; |
1da177e4 LT |
1186 | netdev->mtu = le16_to_cpu(kaweth->configuration.segment_size); |
1187 | SET_ETHTOOL_OPS(netdev, &ops); | |
1188 | ||
1189 | /* kaweth is zeroed as part of alloc_netdev */ | |
c4028958 | 1190 | INIT_DELAYED_WORK(&kaweth->lowmem_work, kaweth_resubmit_tl); |
1da177e4 LT |
1191 | usb_set_intfdata(intf, kaweth); |
1192 | ||
1193 | #if 0 | |
1194 | // dma_supported() is deeply broken on almost all architectures | |
1195 | if (dma_supported (&intf->dev, 0xffffffffffffffffULL)) | |
1196 | kaweth->net->features |= NETIF_F_HIGHDMA; | |
1197 | #endif | |
1198 | ||
1199 | SET_NETDEV_DEV(netdev, &intf->dev); | |
1200 | if (register_netdev(netdev) != 0) { | |
fbe2bafc | 1201 | err("Error registering netdev."); |
1da177e4 LT |
1202 | goto err_intfdata; |
1203 | } | |
1204 | ||
880c9c66 GKH |
1205 | dev_info(&intf->dev, "kaweth interface created at %s\n", |
1206 | kaweth->net->name); | |
1da177e4 | 1207 | |
fbe2bafc | 1208 | dbg("Kaweth probe returning."); |
1da177e4 LT |
1209 | |
1210 | return 0; | |
1211 | ||
1212 | err_intfdata: | |
1213 | usb_set_intfdata(intf, NULL); | |
1214 | usb_buffer_free(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); | |
1215 | err_all_but_rxbuf: | |
1216 | usb_buffer_free(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); | |
1217 | err_tx_and_rx_and_irq: | |
1218 | usb_free_urb(kaweth->irq_urb); | |
1219 | err_tx_and_rx: | |
1220 | usb_free_urb(kaweth->rx_urb); | |
1221 | err_only_tx: | |
1222 | usb_free_urb(kaweth->tx_urb); | |
1223 | err_free_netdev: | |
1224 | free_netdev(netdev); | |
1225 | ||
1226 | return -EIO; | |
1227 | } | |
1228 | ||
1229 | /**************************************************************** | |
1230 | * kaweth_disconnect | |
1231 | ****************************************************************/ | |
1232 | static void kaweth_disconnect(struct usb_interface *intf) | |
1233 | { | |
1234 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
1235 | struct net_device *netdev; | |
1236 | ||
880c9c66 | 1237 | dev_info(&intf->dev, "Unregistering\n"); |
1da177e4 LT |
1238 | |
1239 | usb_set_intfdata(intf, NULL); | |
1240 | if (!kaweth) { | |
4dc89948 | 1241 | dev_warn(&intf->dev, "unregistering non-existant device\n"); |
1da177e4 LT |
1242 | return; |
1243 | } | |
1244 | netdev = kaweth->net; | |
1da177e4 | 1245 | |
fbe2bafc | 1246 | dbg("Unregistering net device"); |
1da177e4 LT |
1247 | unregister_netdev(netdev); |
1248 | ||
1249 | usb_free_urb(kaweth->rx_urb); | |
1250 | usb_free_urb(kaweth->tx_urb); | |
1251 | usb_free_urb(kaweth->irq_urb); | |
1252 | ||
1253 | usb_buffer_free(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); | |
1254 | usb_buffer_free(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); | |
1255 | ||
1256 | free_netdev(netdev); | |
1257 | } | |
1258 | ||
1259 | ||
1260 | // FIXME this completion stuff is a modified clone of | |
1261 | // an OLD version of some stuff in usb.c ... | |
1262 | struct usb_api_data { | |
1263 | wait_queue_head_t wqh; | |
1264 | int done; | |
1265 | }; | |
1266 | ||
1267 | /*-------------------------------------------------------------------* | |
1268 | * completion handler for compatibility wrappers (sync control/bulk) * | |
1269 | *-------------------------------------------------------------------*/ | |
7d12e780 | 1270 | static void usb_api_blocking_completion(struct urb *urb) |
1da177e4 LT |
1271 | { |
1272 | struct usb_api_data *awd = (struct usb_api_data *)urb->context; | |
1273 | ||
1274 | awd->done=1; | |
1275 | wake_up(&awd->wqh); | |
1276 | } | |
1277 | ||
1278 | /*-------------------------------------------------------------------* | |
1279 | * COMPATIBILITY STUFF * | |
1280 | *-------------------------------------------------------------------*/ | |
1281 | ||
1282 | // Starts urb and waits for completion or timeout | |
1283 | static int usb_start_wait_urb(struct urb *urb, int timeout, int* actual_length) | |
1284 | { | |
1285 | struct usb_api_data awd; | |
1286 | int status; | |
1287 | ||
1288 | init_waitqueue_head(&awd.wqh); | |
1289 | awd.done = 0; | |
1290 | ||
1291 | urb->context = &awd; | |
1292 | status = usb_submit_urb(urb, GFP_NOIO); | |
1293 | if (status) { | |
1294 | // something went wrong | |
1295 | usb_free_urb(urb); | |
1296 | return status; | |
1297 | } | |
1298 | ||
1299 | if (!wait_event_timeout(awd.wqh, awd.done, timeout)) { | |
1300 | // timeout | |
4dc89948 | 1301 | dev_warn(&urb->dev->dev, "usb_control/bulk_msg: timeout\n"); |
1da177e4 LT |
1302 | usb_kill_urb(urb); // remove urb safely |
1303 | status = -ETIMEDOUT; | |
1304 | } | |
1305 | else { | |
1306 | status = urb->status; | |
1307 | } | |
1308 | ||
1309 | if (actual_length) { | |
1310 | *actual_length = urb->actual_length; | |
1311 | } | |
1312 | ||
1313 | usb_free_urb(urb); | |
1314 | return status; | |
1315 | } | |
1316 | ||
1317 | /*-------------------------------------------------------------------*/ | |
1318 | // returns status (negative) or length (positive) | |
1319 | static int kaweth_internal_control_msg(struct usb_device *usb_dev, | |
1320 | unsigned int pipe, | |
1321 | struct usb_ctrlrequest *cmd, void *data, | |
1322 | int len, int timeout) | |
1323 | { | |
1324 | struct urb *urb; | |
1325 | int retv; | |
b98b98f9 | 1326 | int length = 0; /* shut up GCC */ |
1da177e4 LT |
1327 | |
1328 | urb = usb_alloc_urb(0, GFP_NOIO); | |
1329 | if (!urb) | |
1330 | return -ENOMEM; | |
1331 | ||
1332 | usb_fill_control_urb(urb, usb_dev, pipe, (unsigned char*)cmd, data, | |
1333 | len, usb_api_blocking_completion, NULL); | |
1334 | ||
1335 | retv = usb_start_wait_urb(urb, timeout, &length); | |
1336 | if (retv < 0) { | |
1337 | return retv; | |
1338 | } | |
1339 | else { | |
1340 | return length; | |
1341 | } | |
1342 | } | |
1343 | ||
1344 | ||
1345 | /**************************************************************** | |
1346 | * kaweth_init | |
1347 | ****************************************************************/ | |
1348 | static int __init kaweth_init(void) | |
1349 | { | |
fbe2bafc | 1350 | dbg("Driver loading"); |
1da177e4 LT |
1351 | return usb_register(&kaweth_driver); |
1352 | } | |
1353 | ||
1354 | /**************************************************************** | |
1355 | * kaweth_exit | |
1356 | ****************************************************************/ | |
1357 | static void __exit kaweth_exit(void) | |
1358 | { | |
1359 | usb_deregister(&kaweth_driver); | |
1360 | } | |
1361 | ||
1362 | module_init(kaweth_init); | |
1363 | module_exit(kaweth_exit); | |
1364 | ||
1365 | ||
1366 | ||
1367 | ||
1368 | ||
1369 | ||
1370 | ||
1371 | ||
1372 |