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 | |
1da177e4 LT |
39 | * Reduce arbitrary timeouts |
40 | * Smart multicast support | |
41 | * Temporary MAC change support | |
42 | * Tunable SOFs parameter - ioctl()? | |
43 | * Ethernet stats collection | |
44 | * Code formatting improvements | |
45 | */ | |
46 | ||
47 | #include <linux/module.h> | |
1da177e4 LT |
48 | #include <linux/slab.h> |
49 | #include <linux/string.h> | |
50 | #include <linux/init.h> | |
51 | #include <linux/delay.h> | |
52 | #include <linux/netdevice.h> | |
53 | #include <linux/etherdevice.h> | |
54 | #include <linux/usb.h> | |
55 | #include <linux/types.h> | |
56 | #include <linux/ethtool.h> | |
1da177e4 LT |
57 | #include <linux/dma-mapping.h> |
58 | #include <linux/wait.h> | |
79682499 | 59 | #include <linux/firmware.h> |
1da177e4 | 60 | #include <asm/uaccess.h> |
1da177e4 LT |
61 | #include <asm/byteorder.h> |
62 | ||
63 | #undef DEBUG | |
64 | ||
1da177e4 LT |
65 | #define KAWETH_MTU 1514 |
66 | #define KAWETH_BUF_SIZE 1664 | |
67 | #define KAWETH_TX_TIMEOUT (5 * HZ) | |
68 | #define KAWETH_SCRATCH_SIZE 32 | |
69 | #define KAWETH_FIRMWARE_BUF_SIZE 4096 | |
2b2b2e35 | 70 | #define KAWETH_CONTROL_TIMEOUT (30000) |
1da177e4 LT |
71 | |
72 | #define KAWETH_STATUS_BROKEN 0x0000001 | |
73 | #define KAWETH_STATUS_CLOSING 0x0000002 | |
1a2ea1df ON |
74 | #define KAWETH_STATUS_SUSPENDING 0x0000004 |
75 | ||
76 | #define KAWETH_STATUS_BLOCKED (KAWETH_STATUS_CLOSING | KAWETH_STATUS_SUSPENDING) | |
1da177e4 LT |
77 | |
78 | #define KAWETH_PACKET_FILTER_PROMISCUOUS 0x01 | |
79 | #define KAWETH_PACKET_FILTER_ALL_MULTICAST 0x02 | |
80 | #define KAWETH_PACKET_FILTER_DIRECTED 0x04 | |
81 | #define KAWETH_PACKET_FILTER_BROADCAST 0x08 | |
82 | #define KAWETH_PACKET_FILTER_MULTICAST 0x10 | |
83 | ||
84 | /* Table 7 */ | |
85 | #define KAWETH_COMMAND_GET_ETHERNET_DESC 0x00 | |
86 | #define KAWETH_COMMAND_MULTICAST_FILTERS 0x01 | |
87 | #define KAWETH_COMMAND_SET_PACKET_FILTER 0x02 | |
88 | #define KAWETH_COMMAND_STATISTICS 0x03 | |
89 | #define KAWETH_COMMAND_SET_TEMP_MAC 0x06 | |
90 | #define KAWETH_COMMAND_GET_TEMP_MAC 0x07 | |
91 | #define KAWETH_COMMAND_SET_URB_SIZE 0x08 | |
92 | #define KAWETH_COMMAND_SET_SOFS_WAIT 0x09 | |
93 | #define KAWETH_COMMAND_SCAN 0xFF | |
94 | ||
95 | #define KAWETH_SOFS_TO_WAIT 0x05 | |
96 | ||
97 | #define INTBUFFERSIZE 4 | |
98 | ||
99 | #define STATE_OFFSET 0 | |
100 | #define STATE_MASK 0x40 | |
101 | #define STATE_SHIFT 5 | |
102 | ||
1a2ea1df ON |
103 | #define IS_BLOCKED(s) (s & KAWETH_STATUS_BLOCKED) |
104 | ||
1da177e4 LT |
105 | |
106 | 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>"); | |
107 | MODULE_DESCRIPTION("KL5USB101 USB Ethernet driver"); | |
108 | MODULE_LICENSE("GPL"); | |
79682499 DW |
109 | MODULE_FIRMWARE("kaweth/new_code.bin"); |
110 | MODULE_FIRMWARE("kaweth/new_code_fix.bin"); | |
111 | MODULE_FIRMWARE("kaweth/trigger_code.bin"); | |
112 | MODULE_FIRMWARE("kaweth/trigger_code_fix.bin"); | |
1da177e4 LT |
113 | |
114 | static const char driver_name[] = "kaweth"; | |
115 | ||
116 | static int kaweth_probe( | |
117 | struct usb_interface *intf, | |
118 | const struct usb_device_id *id /* from id_table */ | |
119 | ); | |
120 | static void kaweth_disconnect(struct usb_interface *intf); | |
121 | static int kaweth_internal_control_msg(struct usb_device *usb_dev, | |
122 | unsigned int pipe, | |
123 | struct usb_ctrlrequest *cmd, void *data, | |
124 | int len, int timeout); | |
1a2ea1df ON |
125 | static int kaweth_suspend(struct usb_interface *intf, pm_message_t message); |
126 | static int kaweth_resume(struct usb_interface *intf); | |
1da177e4 LT |
127 | |
128 | /**************************************************************** | |
129 | * usb_device_id | |
130 | ****************************************************************/ | |
131 | static struct usb_device_id usb_klsi_table[] = { | |
132 | { USB_DEVICE(0x03e8, 0x0008) }, /* AOX Endpoints USB Ethernet */ | |
133 | { USB_DEVICE(0x04bb, 0x0901) }, /* I-O DATA USB-ET/T */ | |
134 | { USB_DEVICE(0x0506, 0x03e8) }, /* 3Com 3C19250 */ | |
135 | { USB_DEVICE(0x0506, 0x11f8) }, /* 3Com 3C460 */ | |
136 | { USB_DEVICE(0x0557, 0x2002) }, /* ATEN USB Ethernet */ | |
137 | { USB_DEVICE(0x0557, 0x4000) }, /* D-Link DSB-650C */ | |
138 | { USB_DEVICE(0x0565, 0x0002) }, /* Peracom Enet */ | |
139 | { USB_DEVICE(0x0565, 0x0003) }, /* Optus@Home UEP1045A */ | |
140 | { USB_DEVICE(0x0565, 0x0005) }, /* Peracom Enet2 */ | |
141 | { USB_DEVICE(0x05e9, 0x0008) }, /* KLSI KL5KUSB101B */ | |
142 | { USB_DEVICE(0x05e9, 0x0009) }, /* KLSI KL5KUSB101B (Board change) */ | |
143 | { USB_DEVICE(0x066b, 0x2202) }, /* Linksys USB10T */ | |
144 | { USB_DEVICE(0x06e1, 0x0008) }, /* ADS USB-10BT */ | |
145 | { USB_DEVICE(0x06e1, 0x0009) }, /* ADS USB-10BT */ | |
146 | { USB_DEVICE(0x0707, 0x0100) }, /* SMC 2202USB */ | |
147 | { USB_DEVICE(0x07aa, 0x0001) }, /* Correga K.K. */ | |
148 | { USB_DEVICE(0x07b8, 0x4000) }, /* D-Link DU-E10 */ | |
149 | { USB_DEVICE(0x0846, 0x1001) }, /* NetGear EA-101 */ | |
150 | { USB_DEVICE(0x0846, 0x1002) }, /* NetGear EA-101 */ | |
151 | { USB_DEVICE(0x085a, 0x0008) }, /* PortGear Ethernet Adapter */ | |
152 | { USB_DEVICE(0x085a, 0x0009) }, /* PortGear Ethernet Adapter */ | |
153 | { USB_DEVICE(0x087d, 0x5704) }, /* Jaton USB Ethernet Device Adapter */ | |
154 | { USB_DEVICE(0x0951, 0x0008) }, /* Kingston Technology USB Ethernet Adapter */ | |
155 | { USB_DEVICE(0x095a, 0x3003) }, /* Portsmith Express Ethernet Adapter */ | |
156 | { USB_DEVICE(0x10bd, 0x1427) }, /* ASANTE USB To Ethernet Adapter */ | |
157 | { USB_DEVICE(0x1342, 0x0204) }, /* Mobility USB-Ethernet Adapter */ | |
158 | { USB_DEVICE(0x13d2, 0x0400) }, /* Shark Pocket Adapter */ | |
159 | { USB_DEVICE(0x1485, 0x0001) }, /* Silicom U2E */ | |
160 | { USB_DEVICE(0x1485, 0x0002) }, /* Psion Dacom Gold Port Ethernet */ | |
161 | { USB_DEVICE(0x1645, 0x0005) }, /* Entrega E45 */ | |
162 | { USB_DEVICE(0x1645, 0x0008) }, /* Entrega USB Ethernet Adapter */ | |
163 | { USB_DEVICE(0x1645, 0x8005) }, /* PortGear Ethernet Adapter */ | |
486ba2a9 | 164 | { USB_DEVICE(0x1668, 0x0323) }, /* Actiontec USB Ethernet */ |
1da177e4 LT |
165 | { USB_DEVICE(0x2001, 0x4000) }, /* D-link DSB-650C */ |
166 | {} /* Null terminator */ | |
167 | }; | |
168 | ||
169 | MODULE_DEVICE_TABLE (usb, usb_klsi_table); | |
170 | ||
171 | /**************************************************************** | |
172 | * kaweth_driver | |
173 | ****************************************************************/ | |
174 | static struct usb_driver kaweth_driver = { | |
1da177e4 LT |
175 | .name = driver_name, |
176 | .probe = kaweth_probe, | |
177 | .disconnect = kaweth_disconnect, | |
1a2ea1df ON |
178 | .suspend = kaweth_suspend, |
179 | .resume = kaweth_resume, | |
1da177e4 | 180 | .id_table = usb_klsi_table, |
b98b98f9 | 181 | .supports_autosuspend = 1, |
1da177e4 LT |
182 | }; |
183 | ||
184 | typedef __u8 eth_addr_t[6]; | |
185 | ||
186 | /**************************************************************** | |
187 | * usb_eth_dev | |
188 | ****************************************************************/ | |
189 | struct usb_eth_dev { | |
190 | char *name; | |
191 | __u16 vendor; | |
192 | __u16 device; | |
193 | void *pdata; | |
194 | }; | |
195 | ||
196 | /**************************************************************** | |
197 | * kaweth_ethernet_configuration | |
198 | * Refer Table 8 | |
199 | ****************************************************************/ | |
200 | struct kaweth_ethernet_configuration | |
201 | { | |
202 | __u8 size; | |
203 | __u8 reserved1; | |
204 | __u8 reserved2; | |
205 | eth_addr_t hw_addr; | |
206 | __u32 statistics_mask; | |
207 | __le16 segment_size; | |
208 | __u16 max_multicast_filters; | |
209 | __u8 reserved3; | |
210 | } __attribute__ ((packed)); | |
211 | ||
212 | /**************************************************************** | |
213 | * kaweth_device | |
214 | ****************************************************************/ | |
215 | struct kaweth_device | |
216 | { | |
217 | spinlock_t device_lock; | |
218 | ||
219 | __u32 status; | |
220 | int end; | |
1da177e4 LT |
221 | int suspend_lowmem_rx; |
222 | int suspend_lowmem_ctrl; | |
223 | int linkstate; | |
1a2ea1df | 224 | int opened; |
c4028958 | 225 | struct delayed_work lowmem_work; |
1da177e4 LT |
226 | |
227 | struct usb_device *dev; | |
b98b98f9 | 228 | struct usb_interface *intf; |
1da177e4 LT |
229 | struct net_device *net; |
230 | wait_queue_head_t term_wait; | |
231 | ||
232 | struct urb *rx_urb; | |
233 | struct urb *tx_urb; | |
234 | struct urb *irq_urb; | |
235 | ||
236 | dma_addr_t intbufferhandle; | |
237 | __u8 *intbuffer; | |
238 | dma_addr_t rxbufferhandle; | |
239 | __u8 *rx_buf; | |
240 | ||
241 | ||
242 | struct sk_buff *tx_skb; | |
243 | ||
244 | __u8 *firmware_buf; | |
245 | __u8 scratch[KAWETH_SCRATCH_SIZE]; | |
246 | __u16 packet_filter_bitmap; | |
247 | ||
248 | struct kaweth_ethernet_configuration configuration; | |
249 | ||
250 | struct net_device_stats stats; | |
251 | }; | |
252 | ||
1da177e4 LT |
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; | |
da2bbdcc HH |
284 | dr->wValue = cpu_to_le16(value); |
285 | dr->wIndex = cpu_to_le16(index); | |
286 | dr->wLength = cpu_to_le16(size); | |
1da177e4 LT |
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, | |
79682499 | 389 | const char *fwname, |
1da177e4 LT |
390 | __u8 interrupt, |
391 | __u8 type) | |
392 | { | |
79682499 DW |
393 | const struct firmware *fw; |
394 | int data_len; | |
395 | int ret; | |
396 | ||
397 | ret = request_firmware(&fw, fwname, &kaweth->dev->dev); | |
398 | if (ret) { | |
399 | err("Firmware request failed\n"); | |
400 | return ret; | |
401 | } | |
402 | ||
403 | if (fw->size > KAWETH_FIRMWARE_BUF_SIZE) { | |
404 | err("Firmware too big: %zu", fw->size); | |
1da177e4 LT |
405 | return -ENOSPC; |
406 | } | |
79682499 DW |
407 | data_len = fw->size; |
408 | memcpy(kaweth->firmware_buf, fw->data, fw->size); | |
1da177e4 | 409 | |
79682499 | 410 | release_firmware(fw); |
1da177e4 LT |
411 | |
412 | kaweth->firmware_buf[2] = (data_len & 0xFF) - 7; | |
413 | kaweth->firmware_buf[3] = data_len >> 8; | |
414 | kaweth->firmware_buf[4] = type; | |
415 | kaweth->firmware_buf[5] = interrupt; | |
416 | ||
fbe2bafc | 417 | dbg("High: %i, Low:%i", kaweth->firmware_buf[3], |
1da177e4 LT |
418 | kaweth->firmware_buf[2]); |
419 | ||
fbe2bafc | 420 | dbg("Downloading firmware at %p to kaweth device at %p", |
79682499 | 421 | fw->data, kaweth); |
fbe2bafc | 422 | dbg("Firmware length: %d", data_len); |
1da177e4 LT |
423 | |
424 | return kaweth_control(kaweth, | |
425 | usb_sndctrlpipe(kaweth->dev, 0), | |
426 | KAWETH_COMMAND_SCAN, | |
427 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
428 | 0, | |
429 | 0, | |
430 | (void *)kaweth->firmware_buf, | |
431 | data_len, | |
432 | KAWETH_CONTROL_TIMEOUT); | |
433 | } | |
434 | ||
435 | /**************************************************************** | |
436 | * kaweth_trigger_firmware | |
437 | ****************************************************************/ | |
438 | static int kaweth_trigger_firmware(struct kaweth_device *kaweth, | |
439 | __u8 interrupt) | |
440 | { | |
441 | kaweth->firmware_buf[0] = 0xB6; | |
442 | kaweth->firmware_buf[1] = 0xC3; | |
443 | kaweth->firmware_buf[2] = 0x01; | |
444 | kaweth->firmware_buf[3] = 0x00; | |
445 | kaweth->firmware_buf[4] = 0x06; | |
446 | kaweth->firmware_buf[5] = interrupt; | |
447 | kaweth->firmware_buf[6] = 0x00; | |
448 | kaweth->firmware_buf[7] = 0x00; | |
449 | ||
fbe2bafc | 450 | dbg("Triggering firmware"); |
1da177e4 LT |
451 | |
452 | return kaweth_control(kaweth, | |
453 | usb_sndctrlpipe(kaweth->dev, 0), | |
454 | KAWETH_COMMAND_SCAN, | |
455 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
456 | 0, | |
457 | 0, | |
458 | (void *)kaweth->firmware_buf, | |
459 | 8, | |
460 | KAWETH_CONTROL_TIMEOUT); | |
461 | } | |
462 | ||
463 | /**************************************************************** | |
464 | * kaweth_reset | |
465 | ****************************************************************/ | |
466 | static int kaweth_reset(struct kaweth_device *kaweth) | |
467 | { | |
468 | int result; | |
469 | ||
fbe2bafc | 470 | dbg("kaweth_reset(%p)", kaweth); |
1da177e4 LT |
471 | result = kaweth_control(kaweth, |
472 | usb_sndctrlpipe(kaweth->dev, 0), | |
473 | USB_REQ_SET_CONFIGURATION, | |
474 | 0, | |
475 | kaweth->dev->config[0].desc.bConfigurationValue, | |
476 | 0, | |
477 | NULL, | |
478 | 0, | |
479 | KAWETH_CONTROL_TIMEOUT); | |
480 | ||
f2d45cd9 | 481 | mdelay(10); |
1da177e4 | 482 | |
fbe2bafc | 483 | dbg("kaweth_reset() returns %d.",result); |
1da177e4 LT |
484 | |
485 | return result; | |
486 | } | |
487 | ||
7d12e780 | 488 | static void kaweth_usb_receive(struct urb *); |
55016f10 | 489 | static int kaweth_resubmit_rx_urb(struct kaweth_device *, gfp_t); |
1da177e4 LT |
490 | |
491 | /**************************************************************** | |
492 | int_callback | |
493 | *****************************************************************/ | |
494 | ||
55016f10 | 495 | static void kaweth_resubmit_int_urb(struct kaweth_device *kaweth, gfp_t mf) |
1da177e4 LT |
496 | { |
497 | int status; | |
498 | ||
499 | status = usb_submit_urb (kaweth->irq_urb, mf); | |
500 | if (unlikely(status == -ENOMEM)) { | |
501 | kaweth->suspend_lowmem_ctrl = 1; | |
502 | schedule_delayed_work(&kaweth->lowmem_work, HZ/4); | |
503 | } else { | |
504 | kaweth->suspend_lowmem_ctrl = 0; | |
505 | } | |
506 | ||
507 | if (status) | |
508 | err ("can't resubmit intr, %s-%s, status %d", | |
509 | kaweth->dev->bus->bus_name, | |
510 | kaweth->dev->devpath, status); | |
511 | } | |
512 | ||
7d12e780 | 513 | static void int_callback(struct urb *u) |
1da177e4 LT |
514 | { |
515 | struct kaweth_device *kaweth = u->context; | |
516 | int act_state; | |
c94cb314 | 517 | int status = u->status; |
1da177e4 | 518 | |
c94cb314 | 519 | switch (status) { |
1da177e4 LT |
520 | case 0: /* success */ |
521 | break; | |
522 | case -ECONNRESET: /* unlink */ | |
523 | case -ENOENT: | |
524 | case -ESHUTDOWN: | |
525 | return; | |
526 | /* -EPIPE: should clear the halt */ | |
527 | default: /* error */ | |
528 | goto resubmit; | |
529 | } | |
530 | ||
531 | /* we check the link state to report changes */ | |
532 | if (kaweth->linkstate != (act_state = ( kaweth->intbuffer[STATE_OFFSET] | STATE_MASK) >> STATE_SHIFT)) { | |
58125f95 | 533 | if (act_state) |
1da177e4 LT |
534 | netif_carrier_on(kaweth->net); |
535 | else | |
536 | netif_carrier_off(kaweth->net); | |
537 | ||
538 | kaweth->linkstate = act_state; | |
539 | } | |
540 | resubmit: | |
541 | kaweth_resubmit_int_urb(kaweth, GFP_ATOMIC); | |
542 | } | |
543 | ||
c4028958 | 544 | static void kaweth_resubmit_tl(struct work_struct *work) |
1da177e4 | 545 | { |
c4028958 DH |
546 | struct kaweth_device *kaweth = |
547 | container_of(work, struct kaweth_device, lowmem_work.work); | |
1da177e4 | 548 | |
1a2ea1df | 549 | if (IS_BLOCKED(kaweth->status)) |
1da177e4 LT |
550 | return; |
551 | ||
552 | if (kaweth->suspend_lowmem_rx) | |
553 | kaweth_resubmit_rx_urb(kaweth, GFP_NOIO); | |
554 | ||
555 | if (kaweth->suspend_lowmem_ctrl) | |
556 | kaweth_resubmit_int_urb(kaweth, GFP_NOIO); | |
557 | } | |
558 | ||
559 | ||
560 | /**************************************************************** | |
561 | * kaweth_resubmit_rx_urb | |
562 | ****************************************************************/ | |
563 | static int kaweth_resubmit_rx_urb(struct kaweth_device *kaweth, | |
55016f10 | 564 | gfp_t mem_flags) |
1da177e4 LT |
565 | { |
566 | int result; | |
567 | ||
568 | usb_fill_bulk_urb(kaweth->rx_urb, | |
569 | kaweth->dev, | |
570 | usb_rcvbulkpipe(kaweth->dev, 1), | |
571 | kaweth->rx_buf, | |
572 | KAWETH_BUF_SIZE, | |
573 | kaweth_usb_receive, | |
574 | kaweth); | |
575 | kaweth->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
576 | kaweth->rx_urb->transfer_dma = kaweth->rxbufferhandle; | |
577 | ||
578 | if((result = usb_submit_urb(kaweth->rx_urb, mem_flags))) { | |
579 | if (result == -ENOMEM) { | |
580 | kaweth->suspend_lowmem_rx = 1; | |
581 | schedule_delayed_work(&kaweth->lowmem_work, HZ/4); | |
582 | } | |
fbe2bafc | 583 | err("resubmitting rx_urb %d failed", result); |
1da177e4 LT |
584 | } else { |
585 | kaweth->suspend_lowmem_rx = 0; | |
586 | } | |
587 | ||
588 | return result; | |
589 | } | |
590 | ||
591 | static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth); | |
592 | ||
593 | /**************************************************************** | |
594 | * kaweth_usb_receive | |
595 | ****************************************************************/ | |
7d12e780 | 596 | static void kaweth_usb_receive(struct urb *urb) |
1da177e4 LT |
597 | { |
598 | struct kaweth_device *kaweth = urb->context; | |
599 | struct net_device *net = kaweth->net; | |
c94cb314 | 600 | int status = urb->status; |
1da177e4 LT |
601 | |
602 | int count = urb->actual_length; | |
603 | int count2 = urb->transfer_buffer_length; | |
604 | ||
605 | __u16 pkt_len = le16_to_cpup((__le16 *)kaweth->rx_buf); | |
606 | ||
607 | struct sk_buff *skb; | |
608 | ||
c94cb314 | 609 | if(unlikely(status == -ECONNRESET || status == -ESHUTDOWN)) |
1da177e4 LT |
610 | /* we are killed - set a flag and wake the disconnect handler */ |
611 | { | |
612 | kaweth->end = 1; | |
613 | wake_up(&kaweth->term_wait); | |
614 | return; | |
615 | } | |
616 | ||
1a2ea1df ON |
617 | spin_lock(&kaweth->device_lock); |
618 | if (IS_BLOCKED(kaweth->status)) { | |
619 | spin_unlock(&kaweth->device_lock); | |
1da177e4 | 620 | return; |
1a2ea1df ON |
621 | } |
622 | spin_unlock(&kaweth->device_lock); | |
1da177e4 | 623 | |
c94cb314 | 624 | if(status && status != -EREMOTEIO && count != 1) { |
fbe2bafc | 625 | err("%s RX status: %d count: %d packet_len: %d", |
1da177e4 | 626 | net->name, |
c94cb314 | 627 | status, |
1da177e4 LT |
628 | count, |
629 | (int)pkt_len); | |
630 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | |
631 | return; | |
632 | } | |
633 | ||
634 | if(kaweth->net && (count > 2)) { | |
635 | if(pkt_len > (count - 2)) { | |
fbe2bafc ON |
636 | err("Packet length too long for USB frame (pkt_len: %x, count: %x)",pkt_len, count); |
637 | err("Packet len & 2047: %x", pkt_len & 2047); | |
638 | err("Count 2: %x", count2); | |
1da177e4 LT |
639 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); |
640 | return; | |
641 | } | |
642 | ||
643 | if(!(skb = dev_alloc_skb(pkt_len+2))) { | |
644 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | |
645 | return; | |
646 | } | |
647 | ||
648 | skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */ | |
649 | ||
8c7b7faa | 650 | skb_copy_to_linear_data(skb, kaweth->rx_buf + 2, pkt_len); |
1da177e4 LT |
651 | |
652 | skb_put(skb, pkt_len); | |
653 | ||
654 | skb->protocol = eth_type_trans(skb, net); | |
655 | ||
656 | netif_rx(skb); | |
657 | ||
658 | kaweth->stats.rx_packets++; | |
659 | kaweth->stats.rx_bytes += pkt_len; | |
660 | } | |
661 | ||
662 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | |
663 | } | |
664 | ||
665 | /**************************************************************** | |
666 | * kaweth_open | |
667 | ****************************************************************/ | |
668 | static int kaweth_open(struct net_device *net) | |
669 | { | |
670 | struct kaweth_device *kaweth = netdev_priv(net); | |
671 | int res; | |
672 | ||
fbe2bafc | 673 | dbg("Opening network device."); |
1da177e4 | 674 | |
b98b98f9 ON |
675 | res = usb_autopm_get_interface(kaweth->intf); |
676 | if (res) { | |
677 | err("Interface cannot be resumed."); | |
678 | return -EIO; | |
679 | } | |
1da177e4 LT |
680 | res = kaweth_resubmit_rx_urb(kaweth, GFP_KERNEL); |
681 | if (res) | |
b98b98f9 | 682 | goto err_out; |
1da177e4 LT |
683 | |
684 | usb_fill_int_urb( | |
685 | kaweth->irq_urb, | |
686 | kaweth->dev, | |
687 | usb_rcvintpipe(kaweth->dev, 3), | |
688 | kaweth->intbuffer, | |
689 | INTBUFFERSIZE, | |
690 | int_callback, | |
691 | kaweth, | |
692 | 250); /* overriding the descriptor */ | |
693 | kaweth->irq_urb->transfer_dma = kaweth->intbufferhandle; | |
694 | kaweth->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
695 | ||
696 | res = usb_submit_urb(kaweth->irq_urb, GFP_KERNEL); | |
697 | if (res) { | |
698 | usb_kill_urb(kaweth->rx_urb); | |
b98b98f9 | 699 | goto err_out; |
1da177e4 | 700 | } |
1a2ea1df | 701 | kaweth->opened = 1; |
1da177e4 LT |
702 | |
703 | netif_start_queue(net); | |
704 | ||
705 | kaweth_async_set_rx_mode(kaweth); | |
706 | return 0; | |
b98b98f9 ON |
707 | |
708 | err_out: | |
709 | usb_autopm_enable(kaweth->intf); | |
710 | return -EIO; | |
1da177e4 LT |
711 | } |
712 | ||
713 | /**************************************************************** | |
b98b98f9 | 714 | * kaweth_kill_urbs |
1da177e4 | 715 | ****************************************************************/ |
1a2ea1df | 716 | static void kaweth_kill_urbs(struct kaweth_device *kaweth) |
1da177e4 | 717 | { |
1da177e4 LT |
718 | usb_kill_urb(kaweth->irq_urb); |
719 | usb_kill_urb(kaweth->rx_urb); | |
d23b536b | 720 | usb_kill_urb(kaweth->tx_urb); |
1da177e4 | 721 | |
4bb073c0 | 722 | cancel_delayed_work_sync(&kaweth->lowmem_work); |
1da177e4 LT |
723 | |
724 | /* a scheduled work may have resubmitted, | |
725 | we hit them again */ | |
726 | usb_kill_urb(kaweth->irq_urb); | |
727 | usb_kill_urb(kaweth->rx_urb); | |
1a2ea1df ON |
728 | } |
729 | ||
730 | /**************************************************************** | |
731 | * kaweth_close | |
732 | ****************************************************************/ | |
733 | static int kaweth_close(struct net_device *net) | |
734 | { | |
735 | struct kaweth_device *kaweth = netdev_priv(net); | |
736 | ||
737 | netif_stop_queue(net); | |
738 | kaweth->opened = 0; | |
739 | ||
740 | kaweth->status |= KAWETH_STATUS_CLOSING; | |
741 | ||
742 | kaweth_kill_urbs(kaweth); | |
1da177e4 LT |
743 | |
744 | kaweth->status &= ~KAWETH_STATUS_CLOSING; | |
745 | ||
b98b98f9 ON |
746 | usb_autopm_enable(kaweth->intf); |
747 | ||
1da177e4 LT |
748 | return 0; |
749 | } | |
750 | ||
751 | static void kaweth_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) | |
752 | { | |
b3ebd522 | 753 | struct kaweth_device *kaweth = netdev_priv(dev); |
1da177e4 LT |
754 | |
755 | strlcpy(info->driver, driver_name, sizeof(info->driver)); | |
b3ebd522 ON |
756 | usb_make_path(kaweth->dev, info->bus_info, sizeof (info->bus_info)); |
757 | } | |
758 | ||
759 | static u32 kaweth_get_link(struct net_device *dev) | |
760 | { | |
761 | struct kaweth_device *kaweth = netdev_priv(dev); | |
762 | ||
763 | return kaweth->linkstate; | |
1da177e4 LT |
764 | } |
765 | ||
766 | static struct ethtool_ops ops = { | |
b3ebd522 ON |
767 | .get_drvinfo = kaweth_get_drvinfo, |
768 | .get_link = kaweth_get_link | |
1da177e4 LT |
769 | }; |
770 | ||
771 | /**************************************************************** | |
772 | * kaweth_usb_transmit_complete | |
773 | ****************************************************************/ | |
7d12e780 | 774 | static void kaweth_usb_transmit_complete(struct urb *urb) |
1da177e4 LT |
775 | { |
776 | struct kaweth_device *kaweth = urb->context; | |
777 | struct sk_buff *skb = kaweth->tx_skb; | |
c94cb314 | 778 | int status = urb->status; |
1da177e4 | 779 | |
c94cb314 ON |
780 | if (unlikely(status != 0)) |
781 | if (status != -ENOENT) | |
782 | dbg("%s: TX status %d.", kaweth->net->name, status); | |
1da177e4 LT |
783 | |
784 | netif_wake_queue(kaweth->net); | |
785 | dev_kfree_skb_irq(skb); | |
786 | } | |
787 | ||
788 | /**************************************************************** | |
789 | * kaweth_start_xmit | |
790 | ****************************************************************/ | |
791 | static int kaweth_start_xmit(struct sk_buff *skb, struct net_device *net) | |
792 | { | |
793 | struct kaweth_device *kaweth = netdev_priv(net); | |
794 | __le16 *private_header; | |
795 | ||
796 | int res; | |
797 | ||
4ff61c8f | 798 | spin_lock_irq(&kaweth->device_lock); |
1da177e4 | 799 | |
1da177e4 LT |
800 | kaweth_async_set_rx_mode(kaweth); |
801 | netif_stop_queue(net); | |
1a2ea1df ON |
802 | if (IS_BLOCKED(kaweth->status)) { |
803 | goto skip; | |
804 | } | |
1da177e4 LT |
805 | |
806 | /* We now decide whether we can put our special header into the sk_buff */ | |
807 | if (skb_cloned(skb) || skb_headroom(skb) < 2) { | |
808 | /* no such luck - we make our own */ | |
809 | struct sk_buff *copied_skb; | |
810 | copied_skb = skb_copy_expand(skb, 2, 0, GFP_ATOMIC); | |
811 | dev_kfree_skb_irq(skb); | |
812 | skb = copied_skb; | |
813 | if (!copied_skb) { | |
814 | kaweth->stats.tx_errors++; | |
815 | netif_start_queue(net); | |
4ff61c8f | 816 | spin_unlock_irq(&kaweth->device_lock); |
1da177e4 LT |
817 | return 0; |
818 | } | |
819 | } | |
820 | ||
821 | private_header = (__le16 *)__skb_push(skb, 2); | |
822 | *private_header = cpu_to_le16(skb->len-2); | |
823 | kaweth->tx_skb = skb; | |
824 | ||
825 | usb_fill_bulk_urb(kaweth->tx_urb, | |
826 | kaweth->dev, | |
827 | usb_sndbulkpipe(kaweth->dev, 2), | |
828 | private_header, | |
829 | skb->len, | |
830 | kaweth_usb_transmit_complete, | |
831 | kaweth); | |
832 | kaweth->end = 0; | |
1da177e4 LT |
833 | |
834 | if((res = usb_submit_urb(kaweth->tx_urb, GFP_ATOMIC))) | |
835 | { | |
4dc89948 | 836 | dev_warn(&net->dev, "kaweth failed tx_urb %d\n", res); |
1a2ea1df | 837 | skip: |
1da177e4 LT |
838 | kaweth->stats.tx_errors++; |
839 | ||
840 | netif_start_queue(net); | |
841 | dev_kfree_skb_irq(skb); | |
842 | } | |
843 | else | |
844 | { | |
845 | kaweth->stats.tx_packets++; | |
846 | kaweth->stats.tx_bytes += skb->len; | |
847 | net->trans_start = jiffies; | |
848 | } | |
849 | ||
4ff61c8f | 850 | spin_unlock_irq(&kaweth->device_lock); |
1da177e4 LT |
851 | |
852 | return 0; | |
853 | } | |
854 | ||
855 | /**************************************************************** | |
856 | * kaweth_set_rx_mode | |
857 | ****************************************************************/ | |
858 | static void kaweth_set_rx_mode(struct net_device *net) | |
859 | { | |
860 | struct kaweth_device *kaweth = netdev_priv(net); | |
861 | ||
862 | __u16 packet_filter_bitmap = KAWETH_PACKET_FILTER_DIRECTED | | |
863 | KAWETH_PACKET_FILTER_BROADCAST | | |
864 | KAWETH_PACKET_FILTER_MULTICAST; | |
865 | ||
fbe2bafc | 866 | dbg("Setting Rx mode to %d", packet_filter_bitmap); |
1da177e4 LT |
867 | |
868 | netif_stop_queue(net); | |
869 | ||
870 | if (net->flags & IFF_PROMISC) { | |
871 | packet_filter_bitmap |= KAWETH_PACKET_FILTER_PROMISCUOUS; | |
872 | } | |
873 | else if ((net->mc_count) || (net->flags & IFF_ALLMULTI)) { | |
874 | packet_filter_bitmap |= KAWETH_PACKET_FILTER_ALL_MULTICAST; | |
875 | } | |
876 | ||
877 | kaweth->packet_filter_bitmap = packet_filter_bitmap; | |
878 | netif_wake_queue(net); | |
879 | } | |
880 | ||
881 | /**************************************************************** | |
882 | * kaweth_async_set_rx_mode | |
883 | ****************************************************************/ | |
884 | static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth) | |
885 | { | |
886 | __u16 packet_filter_bitmap = kaweth->packet_filter_bitmap; | |
887 | kaweth->packet_filter_bitmap = 0; | |
888 | if (packet_filter_bitmap == 0) | |
889 | return; | |
890 | ||
891 | { | |
892 | int result; | |
893 | result = kaweth_control(kaweth, | |
894 | usb_sndctrlpipe(kaweth->dev, 0), | |
895 | KAWETH_COMMAND_SET_PACKET_FILTER, | |
896 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
897 | packet_filter_bitmap, | |
898 | 0, | |
899 | (void *)&kaweth->scratch, | |
900 | 0, | |
901 | KAWETH_CONTROL_TIMEOUT); | |
902 | ||
903 | if(result < 0) { | |
fbe2bafc | 904 | err("Failed to set Rx mode: %d", result); |
1da177e4 LT |
905 | } |
906 | else { | |
fbe2bafc | 907 | dbg("Set Rx mode to %d", packet_filter_bitmap); |
1da177e4 LT |
908 | } |
909 | } | |
910 | } | |
911 | ||
912 | /**************************************************************** | |
913 | * kaweth_netdev_stats | |
914 | ****************************************************************/ | |
915 | static struct net_device_stats *kaweth_netdev_stats(struct net_device *dev) | |
916 | { | |
917 | struct kaweth_device *kaweth = netdev_priv(dev); | |
918 | return &kaweth->stats; | |
919 | } | |
920 | ||
921 | /**************************************************************** | |
922 | * kaweth_tx_timeout | |
923 | ****************************************************************/ | |
924 | static void kaweth_tx_timeout(struct net_device *net) | |
925 | { | |
926 | struct kaweth_device *kaweth = netdev_priv(net); | |
927 | ||
4dc89948 | 928 | dev_warn(&net->dev, "%s: Tx timed out. Resetting.\n", net->name); |
1da177e4 LT |
929 | kaweth->stats.tx_errors++; |
930 | net->trans_start = jiffies; | |
931 | ||
932 | usb_unlink_urb(kaweth->tx_urb); | |
933 | } | |
934 | ||
1a2ea1df ON |
935 | /**************************************************************** |
936 | * kaweth_suspend | |
937 | ****************************************************************/ | |
938 | static int kaweth_suspend(struct usb_interface *intf, pm_message_t message) | |
939 | { | |
940 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
941 | unsigned long flags; | |
942 | ||
b98b98f9 | 943 | dbg("Suspending device"); |
1a2ea1df ON |
944 | spin_lock_irqsave(&kaweth->device_lock, flags); |
945 | kaweth->status |= KAWETH_STATUS_SUSPENDING; | |
946 | spin_unlock_irqrestore(&kaweth->device_lock, flags); | |
947 | ||
948 | kaweth_kill_urbs(kaweth); | |
949 | return 0; | |
950 | } | |
951 | ||
952 | /**************************************************************** | |
953 | * kaweth_resume | |
954 | ****************************************************************/ | |
955 | static int kaweth_resume(struct usb_interface *intf) | |
956 | { | |
957 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
958 | unsigned long flags; | |
959 | ||
b98b98f9 | 960 | dbg("Resuming device"); |
1a2ea1df ON |
961 | spin_lock_irqsave(&kaweth->device_lock, flags); |
962 | kaweth->status &= ~KAWETH_STATUS_SUSPENDING; | |
963 | spin_unlock_irqrestore(&kaweth->device_lock, flags); | |
964 | ||
965 | if (!kaweth->opened) | |
966 | return 0; | |
967 | kaweth_resubmit_rx_urb(kaweth, GFP_NOIO); | |
968 | kaweth_resubmit_int_urb(kaweth, GFP_NOIO); | |
969 | ||
970 | return 0; | |
971 | } | |
972 | ||
1da177e4 LT |
973 | /**************************************************************** |
974 | * kaweth_probe | |
975 | ****************************************************************/ | |
321ea8b2 ON |
976 | |
977 | ||
978 | static const struct net_device_ops kaweth_netdev_ops = { | |
979 | .ndo_open = kaweth_open, | |
980 | .ndo_stop = kaweth_close, | |
981 | .ndo_start_xmit = kaweth_start_xmit, | |
982 | .ndo_tx_timeout = kaweth_tx_timeout, | |
983 | .ndo_set_multicast_list = kaweth_set_rx_mode, | |
984 | .ndo_get_stats = kaweth_netdev_stats, | |
985 | }; | |
986 | ||
1da177e4 LT |
987 | static int kaweth_probe( |
988 | struct usb_interface *intf, | |
989 | const struct usb_device_id *id /* from id_table */ | |
990 | ) | |
991 | { | |
992 | struct usb_device *dev = interface_to_usbdev(intf); | |
993 | struct kaweth_device *kaweth; | |
994 | struct net_device *netdev; | |
995 | const eth_addr_t bcast_addr = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; | |
996 | int result = 0; | |
997 | ||
fbe2bafc | 998 | dbg("Kawasaki Device Probe (Device number:%d): 0x%4.4x:0x%4.4x:0x%4.4x", |
1da177e4 LT |
999 | dev->devnum, |
1000 | le16_to_cpu(dev->descriptor.idVendor), | |
1001 | le16_to_cpu(dev->descriptor.idProduct), | |
1002 | le16_to_cpu(dev->descriptor.bcdDevice)); | |
1003 | ||
fbe2bafc | 1004 | dbg("Device at %p", dev); |
1da177e4 | 1005 | |
fbe2bafc | 1006 | dbg("Descriptor length: %x type: %x", |
1da177e4 LT |
1007 | (int)dev->descriptor.bLength, |
1008 | (int)dev->descriptor.bDescriptorType); | |
1009 | ||
1010 | netdev = alloc_etherdev(sizeof(*kaweth)); | |
1011 | if (!netdev) | |
1012 | return -ENOMEM; | |
1013 | ||
1014 | kaweth = netdev_priv(netdev); | |
1015 | kaweth->dev = dev; | |
1016 | kaweth->net = netdev; | |
1017 | ||
1018 | spin_lock_init(&kaweth->device_lock); | |
1019 | init_waitqueue_head(&kaweth->term_wait); | |
1020 | ||
fbe2bafc | 1021 | dbg("Resetting."); |
1da177e4 LT |
1022 | |
1023 | kaweth_reset(kaweth); | |
1024 | ||
1025 | /* | |
1026 | * If high byte of bcdDevice is nonzero, firmware is already | |
1027 | * downloaded. Don't try to do it again, or we'll hang the device. | |
1028 | */ | |
1029 | ||
1030 | if (le16_to_cpu(dev->descriptor.bcdDevice) >> 8) { | |
880c9c66 | 1031 | dev_info(&intf->dev, "Firmware present in device.\n"); |
1da177e4 LT |
1032 | } else { |
1033 | /* Download the firmware */ | |
880c9c66 | 1034 | dev_info(&intf->dev, "Downloading firmware...\n"); |
1da177e4 LT |
1035 | kaweth->firmware_buf = (__u8 *)__get_free_page(GFP_KERNEL); |
1036 | if ((result = kaweth_download_firmware(kaweth, | |
79682499 | 1037 | "kaweth/new_code.bin", |
1da177e4 LT |
1038 | 100, |
1039 | 2)) < 0) { | |
fbe2bafc | 1040 | err("Error downloading firmware (%d)", result); |
1da177e4 LT |
1041 | goto err_fw; |
1042 | } | |
1043 | ||
1044 | if ((result = kaweth_download_firmware(kaweth, | |
79682499 | 1045 | "kaweth/new_code_fix.bin", |
1da177e4 LT |
1046 | 100, |
1047 | 3)) < 0) { | |
fbe2bafc | 1048 | err("Error downloading firmware fix (%d)", result); |
1da177e4 LT |
1049 | goto err_fw; |
1050 | } | |
1051 | ||
1052 | if ((result = kaweth_download_firmware(kaweth, | |
79682499 | 1053 | "kaweth/trigger_code.bin", |
1da177e4 LT |
1054 | 126, |
1055 | 2)) < 0) { | |
fbe2bafc | 1056 | err("Error downloading trigger code (%d)", result); |
1da177e4 LT |
1057 | goto err_fw; |
1058 | ||
1059 | } | |
1060 | ||
1061 | if ((result = kaweth_download_firmware(kaweth, | |
79682499 | 1062 | "kaweth/trigger_code_fix.bin", |
1da177e4 LT |
1063 | 126, |
1064 | 3)) < 0) { | |
fbe2bafc | 1065 | err("Error downloading trigger code fix (%d)", result); |
1da177e4 LT |
1066 | goto err_fw; |
1067 | } | |
1068 | ||
1069 | ||
1070 | if ((result = kaweth_trigger_firmware(kaweth, 126)) < 0) { | |
fbe2bafc | 1071 | err("Error triggering firmware (%d)", result); |
1da177e4 LT |
1072 | goto err_fw; |
1073 | } | |
1074 | ||
1075 | /* Device will now disappear for a moment... */ | |
880c9c66 | 1076 | dev_info(&intf->dev, "Firmware loaded. I'll be back...\n"); |
1da177e4 LT |
1077 | err_fw: |
1078 | free_page((unsigned long)kaweth->firmware_buf); | |
1079 | free_netdev(netdev); | |
1080 | return -EIO; | |
1081 | } | |
1082 | ||
1083 | result = kaweth_read_configuration(kaweth); | |
1084 | ||
1085 | if(result < 0) { | |
fbe2bafc | 1086 | err("Error reading configuration (%d), no net device created", result); |
1da177e4 LT |
1087 | goto err_free_netdev; |
1088 | } | |
1089 | ||
880c9c66 GKH |
1090 | dev_info(&intf->dev, "Statistics collection: %x\n", kaweth->configuration.statistics_mask); |
1091 | dev_info(&intf->dev, "Multicast filter limit: %x\n", kaweth->configuration.max_multicast_filters & ((1 << 15) - 1)); | |
1092 | dev_info(&intf->dev, "MTU: %d\n", le16_to_cpu(kaweth->configuration.segment_size)); | |
1093 | dev_info(&intf->dev, "Read MAC address %2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n", | |
1da177e4 LT |
1094 | (int)kaweth->configuration.hw_addr[0], |
1095 | (int)kaweth->configuration.hw_addr[1], | |
1096 | (int)kaweth->configuration.hw_addr[2], | |
1097 | (int)kaweth->configuration.hw_addr[3], | |
1098 | (int)kaweth->configuration.hw_addr[4], | |
1099 | (int)kaweth->configuration.hw_addr[5]); | |
1100 | ||
1101 | if(!memcmp(&kaweth->configuration.hw_addr, | |
1102 | &bcast_addr, | |
1103 | sizeof(bcast_addr))) { | |
fbe2bafc | 1104 | err("Firmware not functioning properly, no net device created"); |
1da177e4 LT |
1105 | goto err_free_netdev; |
1106 | } | |
1107 | ||
1108 | if(kaweth_set_urb_size(kaweth, KAWETH_BUF_SIZE) < 0) { | |
fbe2bafc | 1109 | dbg("Error setting URB size"); |
1da177e4 LT |
1110 | goto err_free_netdev; |
1111 | } | |
1112 | ||
1113 | if(kaweth_set_sofs_wait(kaweth, KAWETH_SOFS_TO_WAIT) < 0) { | |
fbe2bafc | 1114 | err("Error setting SOFS wait"); |
1da177e4 LT |
1115 | goto err_free_netdev; |
1116 | } | |
1117 | ||
1118 | result = kaweth_set_receive_filter(kaweth, | |
1119 | KAWETH_PACKET_FILTER_DIRECTED | | |
1120 | KAWETH_PACKET_FILTER_BROADCAST | | |
1121 | KAWETH_PACKET_FILTER_MULTICAST); | |
1122 | ||
1123 | if(result < 0) { | |
fbe2bafc | 1124 | err("Error setting receive filter"); |
1da177e4 LT |
1125 | goto err_free_netdev; |
1126 | } | |
1127 | ||
fbe2bafc | 1128 | dbg("Initializing net device."); |
1da177e4 | 1129 | |
b98b98f9 ON |
1130 | kaweth->intf = intf; |
1131 | ||
1da177e4 LT |
1132 | kaweth->tx_urb = usb_alloc_urb(0, GFP_KERNEL); |
1133 | if (!kaweth->tx_urb) | |
1134 | goto err_free_netdev; | |
1135 | kaweth->rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1136 | if (!kaweth->rx_urb) | |
1137 | goto err_only_tx; | |
1138 | kaweth->irq_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1139 | if (!kaweth->irq_urb) | |
1140 | goto err_tx_and_rx; | |
1141 | ||
1142 | kaweth->intbuffer = usb_buffer_alloc( kaweth->dev, | |
1143 | INTBUFFERSIZE, | |
1144 | GFP_KERNEL, | |
1145 | &kaweth->intbufferhandle); | |
1146 | if (!kaweth->intbuffer) | |
1147 | goto err_tx_and_rx_and_irq; | |
1148 | kaweth->rx_buf = usb_buffer_alloc( kaweth->dev, | |
1149 | KAWETH_BUF_SIZE, | |
1150 | GFP_KERNEL, | |
1151 | &kaweth->rxbufferhandle); | |
1152 | if (!kaweth->rx_buf) | |
1153 | goto err_all_but_rxbuf; | |
1154 | ||
1155 | memcpy(netdev->broadcast, &bcast_addr, sizeof(bcast_addr)); | |
1156 | memcpy(netdev->dev_addr, &kaweth->configuration.hw_addr, | |
1157 | sizeof(kaweth->configuration.hw_addr)); | |
1158 | ||
321ea8b2 | 1159 | netdev->netdev_ops = &kaweth_netdev_ops; |
1da177e4 | 1160 | netdev->watchdog_timeo = KAWETH_TX_TIMEOUT; |
1da177e4 LT |
1161 | netdev->mtu = le16_to_cpu(kaweth->configuration.segment_size); |
1162 | SET_ETHTOOL_OPS(netdev, &ops); | |
1163 | ||
1164 | /* kaweth is zeroed as part of alloc_netdev */ | |
c4028958 | 1165 | INIT_DELAYED_WORK(&kaweth->lowmem_work, kaweth_resubmit_tl); |
1da177e4 LT |
1166 | usb_set_intfdata(intf, kaweth); |
1167 | ||
1168 | #if 0 | |
1169 | // dma_supported() is deeply broken on almost all architectures | |
1170 | if (dma_supported (&intf->dev, 0xffffffffffffffffULL)) | |
1171 | kaweth->net->features |= NETIF_F_HIGHDMA; | |
1172 | #endif | |
1173 | ||
1174 | SET_NETDEV_DEV(netdev, &intf->dev); | |
1175 | if (register_netdev(netdev) != 0) { | |
fbe2bafc | 1176 | err("Error registering netdev."); |
1da177e4 LT |
1177 | goto err_intfdata; |
1178 | } | |
1179 | ||
880c9c66 GKH |
1180 | dev_info(&intf->dev, "kaweth interface created at %s\n", |
1181 | kaweth->net->name); | |
1da177e4 | 1182 | |
fbe2bafc | 1183 | dbg("Kaweth probe returning."); |
1da177e4 LT |
1184 | |
1185 | return 0; | |
1186 | ||
1187 | err_intfdata: | |
1188 | usb_set_intfdata(intf, NULL); | |
1189 | usb_buffer_free(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); | |
1190 | err_all_but_rxbuf: | |
1191 | usb_buffer_free(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); | |
1192 | err_tx_and_rx_and_irq: | |
1193 | usb_free_urb(kaweth->irq_urb); | |
1194 | err_tx_and_rx: | |
1195 | usb_free_urb(kaweth->rx_urb); | |
1196 | err_only_tx: | |
1197 | usb_free_urb(kaweth->tx_urb); | |
1198 | err_free_netdev: | |
1199 | free_netdev(netdev); | |
1200 | ||
1201 | return -EIO; | |
1202 | } | |
1203 | ||
1204 | /**************************************************************** | |
1205 | * kaweth_disconnect | |
1206 | ****************************************************************/ | |
1207 | static void kaweth_disconnect(struct usb_interface *intf) | |
1208 | { | |
1209 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
1210 | struct net_device *netdev; | |
1211 | ||
880c9c66 | 1212 | dev_info(&intf->dev, "Unregistering\n"); |
1da177e4 LT |
1213 | |
1214 | usb_set_intfdata(intf, NULL); | |
1215 | if (!kaweth) { | |
4dc89948 | 1216 | dev_warn(&intf->dev, "unregistering non-existant device\n"); |
1da177e4 LT |
1217 | return; |
1218 | } | |
1219 | netdev = kaweth->net; | |
1da177e4 | 1220 | |
fbe2bafc | 1221 | dbg("Unregistering net device"); |
1da177e4 LT |
1222 | unregister_netdev(netdev); |
1223 | ||
1224 | usb_free_urb(kaweth->rx_urb); | |
1225 | usb_free_urb(kaweth->tx_urb); | |
1226 | usb_free_urb(kaweth->irq_urb); | |
1227 | ||
1228 | usb_buffer_free(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); | |
1229 | usb_buffer_free(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); | |
1230 | ||
1231 | free_netdev(netdev); | |
1232 | } | |
1233 | ||
1234 | ||
1235 | // FIXME this completion stuff is a modified clone of | |
1236 | // an OLD version of some stuff in usb.c ... | |
1237 | struct usb_api_data { | |
1238 | wait_queue_head_t wqh; | |
1239 | int done; | |
1240 | }; | |
1241 | ||
1242 | /*-------------------------------------------------------------------* | |
1243 | * completion handler for compatibility wrappers (sync control/bulk) * | |
1244 | *-------------------------------------------------------------------*/ | |
7d12e780 | 1245 | static void usb_api_blocking_completion(struct urb *urb) |
1da177e4 LT |
1246 | { |
1247 | struct usb_api_data *awd = (struct usb_api_data *)urb->context; | |
1248 | ||
1249 | awd->done=1; | |
1250 | wake_up(&awd->wqh); | |
1251 | } | |
1252 | ||
1253 | /*-------------------------------------------------------------------* | |
1254 | * COMPATIBILITY STUFF * | |
1255 | *-------------------------------------------------------------------*/ | |
1256 | ||
1257 | // Starts urb and waits for completion or timeout | |
1258 | static int usb_start_wait_urb(struct urb *urb, int timeout, int* actual_length) | |
1259 | { | |
1260 | struct usb_api_data awd; | |
1261 | int status; | |
1262 | ||
1263 | init_waitqueue_head(&awd.wqh); | |
1264 | awd.done = 0; | |
1265 | ||
1266 | urb->context = &awd; | |
1267 | status = usb_submit_urb(urb, GFP_NOIO); | |
1268 | if (status) { | |
1269 | // something went wrong | |
1270 | usb_free_urb(urb); | |
1271 | return status; | |
1272 | } | |
1273 | ||
1274 | if (!wait_event_timeout(awd.wqh, awd.done, timeout)) { | |
1275 | // timeout | |
4dc89948 | 1276 | dev_warn(&urb->dev->dev, "usb_control/bulk_msg: timeout\n"); |
1da177e4 LT |
1277 | usb_kill_urb(urb); // remove urb safely |
1278 | status = -ETIMEDOUT; | |
1279 | } | |
1280 | else { | |
1281 | status = urb->status; | |
1282 | } | |
1283 | ||
1284 | if (actual_length) { | |
1285 | *actual_length = urb->actual_length; | |
1286 | } | |
1287 | ||
1288 | usb_free_urb(urb); | |
1289 | return status; | |
1290 | } | |
1291 | ||
1292 | /*-------------------------------------------------------------------*/ | |
1293 | // returns status (negative) or length (positive) | |
1294 | static int kaweth_internal_control_msg(struct usb_device *usb_dev, | |
1295 | unsigned int pipe, | |
1296 | struct usb_ctrlrequest *cmd, void *data, | |
1297 | int len, int timeout) | |
1298 | { | |
1299 | struct urb *urb; | |
1300 | int retv; | |
b98b98f9 | 1301 | int length = 0; /* shut up GCC */ |
1da177e4 LT |
1302 | |
1303 | urb = usb_alloc_urb(0, GFP_NOIO); | |
1304 | if (!urb) | |
1305 | return -ENOMEM; | |
1306 | ||
1307 | usb_fill_control_urb(urb, usb_dev, pipe, (unsigned char*)cmd, data, | |
1308 | len, usb_api_blocking_completion, NULL); | |
1309 | ||
1310 | retv = usb_start_wait_urb(urb, timeout, &length); | |
1311 | if (retv < 0) { | |
1312 | return retv; | |
1313 | } | |
1314 | else { | |
1315 | return length; | |
1316 | } | |
1317 | } | |
1318 | ||
1319 | ||
1320 | /**************************************************************** | |
1321 | * kaweth_init | |
1322 | ****************************************************************/ | |
1323 | static int __init kaweth_init(void) | |
1324 | { | |
fbe2bafc | 1325 | dbg("Driver loading"); |
1da177e4 LT |
1326 | return usb_register(&kaweth_driver); |
1327 | } | |
1328 | ||
1329 | /**************************************************************** | |
1330 | * kaweth_exit | |
1331 | ****************************************************************/ | |
1332 | static void __exit kaweth_exit(void) | |
1333 | { | |
1334 | usb_deregister(&kaweth_driver); | |
1335 | } | |
1336 | ||
1337 | module_init(kaweth_init); | |
1338 | module_exit(kaweth_exit); | |
1339 | ||
1340 | ||
1341 | ||
1342 | ||
1343 | ||
1344 | ||
1345 | ||
1346 | ||
1347 |