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: | |
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 */ | |
dacf4fc8 | 148 | { USB_DEVICE(0x07c9, 0xb010) }, /* Allied Telesyn AT-USB10 USB Ethernet Adapter */ |
1da177e4 LT |
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, |
e1f12eb6 | 182 | .disable_hub_initiated_lpm = 1, |
1da177e4 LT |
183 | }; |
184 | ||
185 | typedef __u8 eth_addr_t[6]; | |
186 | ||
187 | /**************************************************************** | |
188 | * usb_eth_dev | |
189 | ****************************************************************/ | |
190 | struct usb_eth_dev { | |
191 | char *name; | |
192 | __u16 vendor; | |
193 | __u16 device; | |
194 | void *pdata; | |
195 | }; | |
196 | ||
197 | /**************************************************************** | |
198 | * kaweth_ethernet_configuration | |
199 | * Refer Table 8 | |
200 | ****************************************************************/ | |
201 | struct kaweth_ethernet_configuration | |
202 | { | |
203 | __u8 size; | |
204 | __u8 reserved1; | |
205 | __u8 reserved2; | |
206 | eth_addr_t hw_addr; | |
207 | __u32 statistics_mask; | |
208 | __le16 segment_size; | |
209 | __u16 max_multicast_filters; | |
210 | __u8 reserved3; | |
ba2d3587 | 211 | } __packed; |
1da177e4 LT |
212 | |
213 | /**************************************************************** | |
214 | * kaweth_device | |
215 | ****************************************************************/ | |
216 | struct kaweth_device | |
217 | { | |
218 | spinlock_t device_lock; | |
219 | ||
220 | __u32 status; | |
221 | int end; | |
1da177e4 LT |
222 | int suspend_lowmem_rx; |
223 | int suspend_lowmem_ctrl; | |
224 | int linkstate; | |
1a2ea1df | 225 | int opened; |
c4028958 | 226 | struct delayed_work lowmem_work; |
1da177e4 LT |
227 | |
228 | struct usb_device *dev; | |
b98b98f9 | 229 | struct usb_interface *intf; |
1da177e4 LT |
230 | struct net_device *net; |
231 | wait_queue_head_t term_wait; | |
232 | ||
233 | struct urb *rx_urb; | |
234 | struct urb *tx_urb; | |
235 | struct urb *irq_urb; | |
236 | ||
237 | dma_addr_t intbufferhandle; | |
238 | __u8 *intbuffer; | |
239 | dma_addr_t rxbufferhandle; | |
240 | __u8 *rx_buf; | |
241 | ||
242 | ||
243 | struct sk_buff *tx_skb; | |
244 | ||
245 | __u8 *firmware_buf; | |
246 | __u8 scratch[KAWETH_SCRATCH_SIZE]; | |
247 | __u16 packet_filter_bitmap; | |
248 | ||
249 | struct kaweth_ethernet_configuration configuration; | |
250 | ||
251 | struct net_device_stats stats; | |
252 | }; | |
253 | ||
1da177e4 LT |
254 | /**************************************************************** |
255 | * kaweth_control | |
256 | ****************************************************************/ | |
257 | static int kaweth_control(struct kaweth_device *kaweth, | |
258 | unsigned int pipe, | |
259 | __u8 request, | |
260 | __u8 requesttype, | |
261 | __u16 value, | |
262 | __u16 index, | |
263 | void *data, | |
264 | __u16 size, | |
265 | int timeout) | |
266 | { | |
267 | struct usb_ctrlrequest *dr; | |
051b982b | 268 | int retval; |
1da177e4 | 269 | |
49ae25b0 | 270 | netdev_dbg(kaweth->net, "kaweth_control()\n"); |
1da177e4 LT |
271 | |
272 | if(in_interrupt()) { | |
49ae25b0 | 273 | netdev_dbg(kaweth->net, "in_interrupt()\n"); |
1da177e4 LT |
274 | return -EBUSY; |
275 | } | |
276 | ||
277 | dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC); | |
49ae25b0 | 278 | if (!dr) |
1da177e4 | 279 | return -ENOMEM; |
1da177e4 | 280 | |
051b982b | 281 | dr->bRequestType = requesttype; |
1da177e4 | 282 | dr->bRequest = request; |
da2bbdcc HH |
283 | dr->wValue = cpu_to_le16(value); |
284 | dr->wIndex = cpu_to_le16(index); | |
285 | dr->wLength = cpu_to_le16(size); | |
1da177e4 | 286 | |
051b982b KC |
287 | retval = kaweth_internal_control_msg(kaweth->dev, |
288 | pipe, | |
289 | dr, | |
290 | data, | |
291 | size, | |
292 | timeout); | |
293 | ||
294 | kfree(dr); | |
295 | return retval; | |
1da177e4 LT |
296 | } |
297 | ||
298 | /**************************************************************** | |
299 | * kaweth_read_configuration | |
300 | ****************************************************************/ | |
301 | static int kaweth_read_configuration(struct kaweth_device *kaweth) | |
302 | { | |
303 | int retval; | |
304 | ||
49ae25b0 | 305 | netdev_dbg(kaweth->net, "Reading kaweth configuration\n"); |
1da177e4 LT |
306 | |
307 | retval = kaweth_control(kaweth, | |
308 | usb_rcvctrlpipe(kaweth->dev, 0), | |
309 | KAWETH_COMMAND_GET_ETHERNET_DESC, | |
310 | USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE, | |
311 | 0, | |
312 | 0, | |
313 | (void *)&kaweth->configuration, | |
314 | sizeof(kaweth->configuration), | |
315 | KAWETH_CONTROL_TIMEOUT); | |
316 | ||
317 | return retval; | |
318 | } | |
319 | ||
320 | /**************************************************************** | |
321 | * kaweth_set_urb_size | |
322 | ****************************************************************/ | |
323 | static int kaweth_set_urb_size(struct kaweth_device *kaweth, __u16 urb_size) | |
324 | { | |
325 | int retval; | |
326 | ||
49ae25b0 | 327 | netdev_dbg(kaweth->net, "Setting URB size to %d\n", (unsigned)urb_size); |
1da177e4 LT |
328 | |
329 | retval = kaweth_control(kaweth, | |
330 | usb_sndctrlpipe(kaweth->dev, 0), | |
331 | KAWETH_COMMAND_SET_URB_SIZE, | |
332 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
333 | urb_size, | |
334 | 0, | |
335 | (void *)&kaweth->scratch, | |
336 | 0, | |
337 | KAWETH_CONTROL_TIMEOUT); | |
338 | ||
339 | return retval; | |
340 | } | |
341 | ||
342 | /**************************************************************** | |
343 | * kaweth_set_sofs_wait | |
344 | ****************************************************************/ | |
345 | static int kaweth_set_sofs_wait(struct kaweth_device *kaweth, __u16 sofs_wait) | |
346 | { | |
347 | int retval; | |
348 | ||
49ae25b0 | 349 | netdev_dbg(kaweth->net, "Set SOFS wait to %d\n", (unsigned)sofs_wait); |
1da177e4 LT |
350 | |
351 | retval = kaweth_control(kaweth, | |
352 | usb_sndctrlpipe(kaweth->dev, 0), | |
353 | KAWETH_COMMAND_SET_SOFS_WAIT, | |
354 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
355 | sofs_wait, | |
356 | 0, | |
357 | (void *)&kaweth->scratch, | |
358 | 0, | |
359 | KAWETH_CONTROL_TIMEOUT); | |
360 | ||
361 | return retval; | |
362 | } | |
363 | ||
364 | /**************************************************************** | |
365 | * kaweth_set_receive_filter | |
366 | ****************************************************************/ | |
367 | static int kaweth_set_receive_filter(struct kaweth_device *kaweth, | |
368 | __u16 receive_filter) | |
369 | { | |
370 | int retval; | |
371 | ||
49ae25b0 GKH |
372 | netdev_dbg(kaweth->net, "Set receive filter to %d\n", |
373 | (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) { | |
db6b2219 | 402 | dev_err(&kaweth->intf->dev, "Firmware request failed\n"); |
79682499 DW |
403 | return ret; |
404 | } | |
405 | ||
406 | if (fw->size > KAWETH_FIRMWARE_BUF_SIZE) { | |
db6b2219 GKH |
407 | dev_err(&kaweth->intf->dev, "Firmware too big: %zu\n", |
408 | fw->size); | |
986e3f6e | 409 | release_firmware(fw); |
1da177e4 LT |
410 | return -ENOSPC; |
411 | } | |
79682499 DW |
412 | data_len = fw->size; |
413 | memcpy(kaweth->firmware_buf, fw->data, fw->size); | |
1da177e4 | 414 | |
79682499 | 415 | release_firmware(fw); |
1da177e4 LT |
416 | |
417 | kaweth->firmware_buf[2] = (data_len & 0xFF) - 7; | |
418 | kaweth->firmware_buf[3] = data_len >> 8; | |
419 | kaweth->firmware_buf[4] = type; | |
420 | kaweth->firmware_buf[5] = interrupt; | |
421 | ||
49ae25b0 | 422 | netdev_dbg(kaweth->net, "High: %i, Low:%i\n", kaweth->firmware_buf[3], |
1da177e4 LT |
423 | kaweth->firmware_buf[2]); |
424 | ||
49ae25b0 GKH |
425 | netdev_dbg(kaweth->net, |
426 | "Downloading firmware at %p to kaweth device at %p\n", | |
0abc1cee | 427 | kaweth->firmware_buf, kaweth); |
49ae25b0 | 428 | netdev_dbg(kaweth->net, "Firmware length: %d\n", data_len); |
1da177e4 LT |
429 | |
430 | return kaweth_control(kaweth, | |
431 | usb_sndctrlpipe(kaweth->dev, 0), | |
432 | KAWETH_COMMAND_SCAN, | |
433 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
434 | 0, | |
435 | 0, | |
436 | (void *)kaweth->firmware_buf, | |
437 | data_len, | |
438 | KAWETH_CONTROL_TIMEOUT); | |
439 | } | |
440 | ||
441 | /**************************************************************** | |
442 | * kaweth_trigger_firmware | |
443 | ****************************************************************/ | |
444 | static int kaweth_trigger_firmware(struct kaweth_device *kaweth, | |
445 | __u8 interrupt) | |
446 | { | |
447 | kaweth->firmware_buf[0] = 0xB6; | |
448 | kaweth->firmware_buf[1] = 0xC3; | |
449 | kaweth->firmware_buf[2] = 0x01; | |
450 | kaweth->firmware_buf[3] = 0x00; | |
451 | kaweth->firmware_buf[4] = 0x06; | |
452 | kaweth->firmware_buf[5] = interrupt; | |
453 | kaweth->firmware_buf[6] = 0x00; | |
454 | kaweth->firmware_buf[7] = 0x00; | |
455 | ||
49ae25b0 | 456 | netdev_dbg(kaweth->net, "Triggering firmware\n"); |
1da177e4 LT |
457 | |
458 | return kaweth_control(kaweth, | |
459 | usb_sndctrlpipe(kaweth->dev, 0), | |
460 | KAWETH_COMMAND_SCAN, | |
461 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
462 | 0, | |
463 | 0, | |
464 | (void *)kaweth->firmware_buf, | |
465 | 8, | |
466 | KAWETH_CONTROL_TIMEOUT); | |
467 | } | |
468 | ||
469 | /**************************************************************** | |
470 | * kaweth_reset | |
471 | ****************************************************************/ | |
472 | static int kaweth_reset(struct kaweth_device *kaweth) | |
473 | { | |
474 | int result; | |
475 | ||
49ae25b0 | 476 | netdev_dbg(kaweth->net, "kaweth_reset(%p)\n", kaweth); |
f0816ce3 | 477 | result = usb_reset_configuration(kaweth->dev); |
f2d45cd9 | 478 | mdelay(10); |
1da177e4 | 479 | |
49ae25b0 | 480 | netdev_dbg(kaweth->net, "kaweth_reset() returns %d.\n", result); |
1da177e4 LT |
481 | |
482 | return result; | |
483 | } | |
484 | ||
7d12e780 | 485 | static void kaweth_usb_receive(struct urb *); |
55016f10 | 486 | static int kaweth_resubmit_rx_urb(struct kaweth_device *, gfp_t); |
1da177e4 LT |
487 | |
488 | /**************************************************************** | |
489 | int_callback | |
490 | *****************************************************************/ | |
491 | ||
55016f10 | 492 | static void kaweth_resubmit_int_urb(struct kaweth_device *kaweth, gfp_t mf) |
1da177e4 LT |
493 | { |
494 | int status; | |
495 | ||
496 | status = usb_submit_urb (kaweth->irq_urb, mf); | |
497 | if (unlikely(status == -ENOMEM)) { | |
498 | kaweth->suspend_lowmem_ctrl = 1; | |
499 | schedule_delayed_work(&kaweth->lowmem_work, HZ/4); | |
500 | } else { | |
501 | kaweth->suspend_lowmem_ctrl = 0; | |
502 | } | |
503 | ||
504 | if (status) | |
db6b2219 GKH |
505 | dev_err(&kaweth->intf->dev, |
506 | "can't resubmit intr, %s-%s, status %d\n", | |
507 | kaweth->dev->bus->bus_name, | |
508 | kaweth->dev->devpath, status); | |
1da177e4 LT |
509 | } |
510 | ||
7d12e780 | 511 | static void int_callback(struct urb *u) |
1da177e4 LT |
512 | { |
513 | struct kaweth_device *kaweth = u->context; | |
514 | int act_state; | |
c94cb314 | 515 | int status = u->status; |
1da177e4 | 516 | |
c94cb314 | 517 | switch (status) { |
1da177e4 LT |
518 | case 0: /* success */ |
519 | break; | |
520 | case -ECONNRESET: /* unlink */ | |
521 | case -ENOENT: | |
522 | case -ESHUTDOWN: | |
523 | return; | |
524 | /* -EPIPE: should clear the halt */ | |
525 | default: /* error */ | |
526 | goto resubmit; | |
527 | } | |
528 | ||
529 | /* we check the link state to report changes */ | |
530 | if (kaweth->linkstate != (act_state = ( kaweth->intbuffer[STATE_OFFSET] | STATE_MASK) >> STATE_SHIFT)) { | |
58125f95 | 531 | if (act_state) |
1da177e4 LT |
532 | netif_carrier_on(kaweth->net); |
533 | else | |
534 | netif_carrier_off(kaweth->net); | |
535 | ||
536 | kaweth->linkstate = act_state; | |
537 | } | |
538 | resubmit: | |
539 | kaweth_resubmit_int_urb(kaweth, GFP_ATOMIC); | |
540 | } | |
541 | ||
c4028958 | 542 | static void kaweth_resubmit_tl(struct work_struct *work) |
1da177e4 | 543 | { |
c4028958 DH |
544 | struct kaweth_device *kaweth = |
545 | container_of(work, struct kaweth_device, lowmem_work.work); | |
1da177e4 | 546 | |
1a2ea1df | 547 | if (IS_BLOCKED(kaweth->status)) |
1da177e4 LT |
548 | return; |
549 | ||
550 | if (kaweth->suspend_lowmem_rx) | |
551 | kaweth_resubmit_rx_urb(kaweth, GFP_NOIO); | |
552 | ||
553 | if (kaweth->suspend_lowmem_ctrl) | |
554 | kaweth_resubmit_int_urb(kaweth, GFP_NOIO); | |
555 | } | |
556 | ||
557 | ||
558 | /**************************************************************** | |
559 | * kaweth_resubmit_rx_urb | |
560 | ****************************************************************/ | |
561 | static int kaweth_resubmit_rx_urb(struct kaweth_device *kaweth, | |
55016f10 | 562 | gfp_t mem_flags) |
1da177e4 LT |
563 | { |
564 | int result; | |
565 | ||
566 | usb_fill_bulk_urb(kaweth->rx_urb, | |
567 | kaweth->dev, | |
568 | usb_rcvbulkpipe(kaweth->dev, 1), | |
569 | kaweth->rx_buf, | |
570 | KAWETH_BUF_SIZE, | |
571 | kaweth_usb_receive, | |
572 | kaweth); | |
573 | kaweth->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
574 | kaweth->rx_urb->transfer_dma = kaweth->rxbufferhandle; | |
575 | ||
576 | if((result = usb_submit_urb(kaweth->rx_urb, mem_flags))) { | |
577 | if (result == -ENOMEM) { | |
578 | kaweth->suspend_lowmem_rx = 1; | |
579 | schedule_delayed_work(&kaweth->lowmem_work, HZ/4); | |
580 | } | |
db6b2219 GKH |
581 | dev_err(&kaweth->intf->dev, "resubmitting rx_urb %d failed\n", |
582 | result); | |
1da177e4 LT |
583 | } else { |
584 | kaweth->suspend_lowmem_rx = 0; | |
585 | } | |
586 | ||
587 | return result; | |
588 | } | |
589 | ||
590 | static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth); | |
591 | ||
592 | /**************************************************************** | |
593 | * kaweth_usb_receive | |
594 | ****************************************************************/ | |
7d12e780 | 595 | static void kaweth_usb_receive(struct urb *urb) |
1da177e4 | 596 | { |
49ae25b0 | 597 | struct device *dev = &urb->dev->dev; |
1da177e4 LT |
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 | ||
710b523a LF |
609 | if (unlikely(status == -EPIPE)) { |
610 | kaweth->stats.rx_errors++; | |
1da177e4 LT |
611 | kaweth->end = 1; |
612 | wake_up(&kaweth->term_wait); | |
49ae25b0 | 613 | dev_dbg(dev, "Status was -EPIPE.\n"); |
1da177e4 LT |
614 | return; |
615 | } | |
710b523a LF |
616 | if (unlikely(status == -ECONNRESET || status == -ESHUTDOWN)) { |
617 | /* we are killed - set a flag and wake the disconnect handler */ | |
618 | kaweth->end = 1; | |
619 | wake_up(&kaweth->term_wait); | |
49ae25b0 | 620 | dev_dbg(dev, "Status was -ECONNRESET or -ESHUTDOWN.\n"); |
710b523a LF |
621 | return; |
622 | } | |
623 | if (unlikely(status == -EPROTO || status == -ETIME || | |
624 | status == -EILSEQ)) { | |
625 | kaweth->stats.rx_errors++; | |
49ae25b0 | 626 | dev_dbg(dev, "Status was -EPROTO, -ETIME, or -EILSEQ.\n"); |
710b523a LF |
627 | return; |
628 | } | |
629 | if (unlikely(status == -EOVERFLOW)) { | |
630 | kaweth->stats.rx_errors++; | |
49ae25b0 | 631 | dev_dbg(dev, "Status was -EOVERFLOW.\n"); |
710b523a | 632 | } |
1a2ea1df ON |
633 | spin_lock(&kaweth->device_lock); |
634 | if (IS_BLOCKED(kaweth->status)) { | |
635 | spin_unlock(&kaweth->device_lock); | |
1da177e4 | 636 | return; |
1a2ea1df ON |
637 | } |
638 | spin_unlock(&kaweth->device_lock); | |
1da177e4 | 639 | |
c94cb314 | 640 | if(status && status != -EREMOTEIO && count != 1) { |
db6b2219 GKH |
641 | dev_err(&kaweth->intf->dev, |
642 | "%s RX status: %d count: %d packet_len: %d\n", | |
643 | net->name, status, count, (int)pkt_len); | |
1da177e4 LT |
644 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); |
645 | return; | |
646 | } | |
647 | ||
648 | if(kaweth->net && (count > 2)) { | |
649 | if(pkt_len > (count - 2)) { | |
db6b2219 GKH |
650 | dev_err(&kaweth->intf->dev, |
651 | "Packet length too long for USB frame (pkt_len: %x, count: %x)\n", | |
652 | pkt_len, count); | |
653 | dev_err(&kaweth->intf->dev, "Packet len & 2047: %x\n", | |
654 | pkt_len & 2047); | |
655 | dev_err(&kaweth->intf->dev, "Count 2: %x\n", count2); | |
1da177e4 LT |
656 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); |
657 | return; | |
658 | } | |
659 | ||
660 | if(!(skb = dev_alloc_skb(pkt_len+2))) { | |
661 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | |
662 | return; | |
663 | } | |
664 | ||
665 | skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */ | |
666 | ||
8c7b7faa | 667 | skb_copy_to_linear_data(skb, kaweth->rx_buf + 2, pkt_len); |
1da177e4 LT |
668 | |
669 | skb_put(skb, pkt_len); | |
670 | ||
671 | skb->protocol = eth_type_trans(skb, net); | |
672 | ||
673 | netif_rx(skb); | |
674 | ||
675 | kaweth->stats.rx_packets++; | |
676 | kaweth->stats.rx_bytes += pkt_len; | |
677 | } | |
678 | ||
679 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | |
680 | } | |
681 | ||
682 | /**************************************************************** | |
683 | * kaweth_open | |
684 | ****************************************************************/ | |
685 | static int kaweth_open(struct net_device *net) | |
686 | { | |
687 | struct kaweth_device *kaweth = netdev_priv(net); | |
688 | int res; | |
689 | ||
49ae25b0 | 690 | netdev_dbg(kaweth->net, "Opening network device.\n"); |
1da177e4 | 691 | |
b98b98f9 ON |
692 | res = usb_autopm_get_interface(kaweth->intf); |
693 | if (res) { | |
db6b2219 | 694 | dev_err(&kaweth->intf->dev, "Interface cannot be resumed.\n"); |
b98b98f9 ON |
695 | return -EIO; |
696 | } | |
1da177e4 LT |
697 | res = kaweth_resubmit_rx_urb(kaweth, GFP_KERNEL); |
698 | if (res) | |
b98b98f9 | 699 | goto err_out; |
1da177e4 LT |
700 | |
701 | usb_fill_int_urb( | |
702 | kaweth->irq_urb, | |
703 | kaweth->dev, | |
704 | usb_rcvintpipe(kaweth->dev, 3), | |
705 | kaweth->intbuffer, | |
706 | INTBUFFERSIZE, | |
707 | int_callback, | |
708 | kaweth, | |
709 | 250); /* overriding the descriptor */ | |
710 | kaweth->irq_urb->transfer_dma = kaweth->intbufferhandle; | |
711 | kaweth->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
712 | ||
713 | res = usb_submit_urb(kaweth->irq_urb, GFP_KERNEL); | |
714 | if (res) { | |
715 | usb_kill_urb(kaweth->rx_urb); | |
b98b98f9 | 716 | goto err_out; |
1da177e4 | 717 | } |
1a2ea1df | 718 | kaweth->opened = 1; |
1da177e4 LT |
719 | |
720 | netif_start_queue(net); | |
721 | ||
722 | kaweth_async_set_rx_mode(kaweth); | |
723 | return 0; | |
b98b98f9 ON |
724 | |
725 | err_out: | |
ceb0c77e | 726 | usb_autopm_put_interface(kaweth->intf); |
b98b98f9 | 727 | return -EIO; |
1da177e4 LT |
728 | } |
729 | ||
730 | /**************************************************************** | |
b98b98f9 | 731 | * kaweth_kill_urbs |
1da177e4 | 732 | ****************************************************************/ |
1a2ea1df | 733 | static void kaweth_kill_urbs(struct kaweth_device *kaweth) |
1da177e4 | 734 | { |
1da177e4 LT |
735 | usb_kill_urb(kaweth->irq_urb); |
736 | usb_kill_urb(kaweth->rx_urb); | |
d23b536b | 737 | usb_kill_urb(kaweth->tx_urb); |
1da177e4 | 738 | |
4bb073c0 | 739 | cancel_delayed_work_sync(&kaweth->lowmem_work); |
1da177e4 LT |
740 | |
741 | /* a scheduled work may have resubmitted, | |
742 | we hit them again */ | |
743 | usb_kill_urb(kaweth->irq_urb); | |
744 | usb_kill_urb(kaweth->rx_urb); | |
1a2ea1df ON |
745 | } |
746 | ||
747 | /**************************************************************** | |
748 | * kaweth_close | |
749 | ****************************************************************/ | |
750 | static int kaweth_close(struct net_device *net) | |
751 | { | |
752 | struct kaweth_device *kaweth = netdev_priv(net); | |
753 | ||
754 | netif_stop_queue(net); | |
755 | kaweth->opened = 0; | |
756 | ||
757 | kaweth->status |= KAWETH_STATUS_CLOSING; | |
758 | ||
759 | kaweth_kill_urbs(kaweth); | |
1da177e4 LT |
760 | |
761 | kaweth->status &= ~KAWETH_STATUS_CLOSING; | |
762 | ||
ceb0c77e | 763 | usb_autopm_put_interface(kaweth->intf); |
b98b98f9 | 764 | |
1da177e4 LT |
765 | return 0; |
766 | } | |
767 | ||
b3ebd522 ON |
768 | static u32 kaweth_get_link(struct net_device *dev) |
769 | { | |
770 | struct kaweth_device *kaweth = netdev_priv(dev); | |
771 | ||
772 | return kaweth->linkstate; | |
1da177e4 LT |
773 | } |
774 | ||
0fc0b732 | 775 | static const struct ethtool_ops ops = { |
b3ebd522 | 776 | .get_link = kaweth_get_link |
1da177e4 LT |
777 | }; |
778 | ||
779 | /**************************************************************** | |
780 | * kaweth_usb_transmit_complete | |
781 | ****************************************************************/ | |
7d12e780 | 782 | static void kaweth_usb_transmit_complete(struct urb *urb) |
1da177e4 LT |
783 | { |
784 | struct kaweth_device *kaweth = urb->context; | |
785 | struct sk_buff *skb = kaweth->tx_skb; | |
c94cb314 | 786 | int status = urb->status; |
1da177e4 | 787 | |
c94cb314 ON |
788 | if (unlikely(status != 0)) |
789 | if (status != -ENOENT) | |
49ae25b0 GKH |
790 | dev_dbg(&urb->dev->dev, "%s: TX status %d.\n", |
791 | kaweth->net->name, status); | |
1da177e4 LT |
792 | |
793 | netif_wake_queue(kaweth->net); | |
794 | dev_kfree_skb_irq(skb); | |
795 | } | |
796 | ||
797 | /**************************************************************** | |
798 | * kaweth_start_xmit | |
799 | ****************************************************************/ | |
25a79c41 SH |
800 | static netdev_tx_t kaweth_start_xmit(struct sk_buff *skb, |
801 | struct net_device *net) | |
1da177e4 LT |
802 | { |
803 | struct kaweth_device *kaweth = netdev_priv(net); | |
804 | __le16 *private_header; | |
805 | ||
806 | int res; | |
807 | ||
4ff61c8f | 808 | spin_lock_irq(&kaweth->device_lock); |
1da177e4 | 809 | |
1da177e4 LT |
810 | kaweth_async_set_rx_mode(kaweth); |
811 | netif_stop_queue(net); | |
1a2ea1df ON |
812 | if (IS_BLOCKED(kaweth->status)) { |
813 | goto skip; | |
814 | } | |
1da177e4 LT |
815 | |
816 | /* We now decide whether we can put our special header into the sk_buff */ | |
817 | if (skb_cloned(skb) || skb_headroom(skb) < 2) { | |
818 | /* no such luck - we make our own */ | |
819 | struct sk_buff *copied_skb; | |
820 | copied_skb = skb_copy_expand(skb, 2, 0, GFP_ATOMIC); | |
821 | dev_kfree_skb_irq(skb); | |
822 | skb = copied_skb; | |
823 | if (!copied_skb) { | |
824 | kaweth->stats.tx_errors++; | |
825 | netif_start_queue(net); | |
4ff61c8f | 826 | spin_unlock_irq(&kaweth->device_lock); |
6ed10654 | 827 | return NETDEV_TX_OK; |
1da177e4 LT |
828 | } |
829 | } | |
830 | ||
831 | private_header = (__le16 *)__skb_push(skb, 2); | |
832 | *private_header = cpu_to_le16(skb->len-2); | |
833 | kaweth->tx_skb = skb; | |
834 | ||
835 | usb_fill_bulk_urb(kaweth->tx_urb, | |
836 | kaweth->dev, | |
837 | usb_sndbulkpipe(kaweth->dev, 2), | |
838 | private_header, | |
839 | skb->len, | |
840 | kaweth_usb_transmit_complete, | |
841 | kaweth); | |
842 | kaweth->end = 0; | |
1da177e4 LT |
843 | |
844 | if((res = usb_submit_urb(kaweth->tx_urb, GFP_ATOMIC))) | |
845 | { | |
4dc89948 | 846 | dev_warn(&net->dev, "kaweth failed tx_urb %d\n", res); |
1a2ea1df | 847 | skip: |
1da177e4 LT |
848 | kaweth->stats.tx_errors++; |
849 | ||
850 | netif_start_queue(net); | |
851 | dev_kfree_skb_irq(skb); | |
852 | } | |
853 | else | |
854 | { | |
855 | kaweth->stats.tx_packets++; | |
856 | kaweth->stats.tx_bytes += skb->len; | |
1da177e4 LT |
857 | } |
858 | ||
4ff61c8f | 859 | spin_unlock_irq(&kaweth->device_lock); |
1da177e4 | 860 | |
6ed10654 | 861 | return NETDEV_TX_OK; |
1da177e4 LT |
862 | } |
863 | ||
864 | /**************************************************************** | |
865 | * kaweth_set_rx_mode | |
866 | ****************************************************************/ | |
867 | static void kaweth_set_rx_mode(struct net_device *net) | |
868 | { | |
869 | struct kaweth_device *kaweth = netdev_priv(net); | |
870 | ||
871 | __u16 packet_filter_bitmap = KAWETH_PACKET_FILTER_DIRECTED | | |
872 | KAWETH_PACKET_FILTER_BROADCAST | | |
873 | KAWETH_PACKET_FILTER_MULTICAST; | |
874 | ||
49ae25b0 | 875 | netdev_dbg(net, "Setting Rx mode to %d\n", packet_filter_bitmap); |
1da177e4 LT |
876 | |
877 | netif_stop_queue(net); | |
878 | ||
879 | if (net->flags & IFF_PROMISC) { | |
880 | packet_filter_bitmap |= KAWETH_PACKET_FILTER_PROMISCUOUS; | |
881 | } | |
4cd24eaf | 882 | else if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) { |
1da177e4 LT |
883 | packet_filter_bitmap |= KAWETH_PACKET_FILTER_ALL_MULTICAST; |
884 | } | |
885 | ||
886 | kaweth->packet_filter_bitmap = packet_filter_bitmap; | |
887 | netif_wake_queue(net); | |
888 | } | |
889 | ||
890 | /**************************************************************** | |
891 | * kaweth_async_set_rx_mode | |
892 | ****************************************************************/ | |
893 | static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth) | |
894 | { | |
710b523a | 895 | int result; |
1da177e4 | 896 | __u16 packet_filter_bitmap = kaweth->packet_filter_bitmap; |
710b523a | 897 | |
1da177e4 LT |
898 | kaweth->packet_filter_bitmap = 0; |
899 | if (packet_filter_bitmap == 0) | |
900 | return; | |
901 | ||
710b523a LF |
902 | if (in_interrupt()) |
903 | return; | |
904 | ||
1da177e4 LT |
905 | result = kaweth_control(kaweth, |
906 | usb_sndctrlpipe(kaweth->dev, 0), | |
907 | KAWETH_COMMAND_SET_PACKET_FILTER, | |
908 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
909 | packet_filter_bitmap, | |
910 | 0, | |
911 | (void *)&kaweth->scratch, | |
912 | 0, | |
913 | KAWETH_CONTROL_TIMEOUT); | |
914 | ||
915 | if(result < 0) { | |
db6b2219 GKH |
916 | dev_err(&kaweth->intf->dev, "Failed to set Rx mode: %d\n", |
917 | result); | |
1da177e4 LT |
918 | } |
919 | else { | |
49ae25b0 GKH |
920 | netdev_dbg(kaweth->net, "Set Rx mode to %d\n", |
921 | packet_filter_bitmap); | |
1da177e4 | 922 | } |
1da177e4 LT |
923 | } |
924 | ||
925 | /**************************************************************** | |
926 | * kaweth_netdev_stats | |
927 | ****************************************************************/ | |
928 | static struct net_device_stats *kaweth_netdev_stats(struct net_device *dev) | |
929 | { | |
930 | struct kaweth_device *kaweth = netdev_priv(dev); | |
931 | return &kaweth->stats; | |
932 | } | |
933 | ||
934 | /**************************************************************** | |
935 | * kaweth_tx_timeout | |
936 | ****************************************************************/ | |
937 | static void kaweth_tx_timeout(struct net_device *net) | |
938 | { | |
939 | struct kaweth_device *kaweth = netdev_priv(net); | |
940 | ||
4dc89948 | 941 | dev_warn(&net->dev, "%s: Tx timed out. Resetting.\n", net->name); |
1da177e4 LT |
942 | kaweth->stats.tx_errors++; |
943 | net->trans_start = jiffies; | |
944 | ||
945 | usb_unlink_urb(kaweth->tx_urb); | |
946 | } | |
947 | ||
1a2ea1df ON |
948 | /**************************************************************** |
949 | * kaweth_suspend | |
950 | ****************************************************************/ | |
951 | static int kaweth_suspend(struct usb_interface *intf, pm_message_t message) | |
952 | { | |
953 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
954 | unsigned long flags; | |
955 | ||
49ae25b0 | 956 | dev_dbg(&intf->dev, "Suspending device\n"); |
1a2ea1df ON |
957 | spin_lock_irqsave(&kaweth->device_lock, flags); |
958 | kaweth->status |= KAWETH_STATUS_SUSPENDING; | |
959 | spin_unlock_irqrestore(&kaweth->device_lock, flags); | |
960 | ||
961 | kaweth_kill_urbs(kaweth); | |
962 | return 0; | |
963 | } | |
964 | ||
965 | /**************************************************************** | |
966 | * kaweth_resume | |
967 | ****************************************************************/ | |
968 | static int kaweth_resume(struct usb_interface *intf) | |
969 | { | |
970 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
971 | unsigned long flags; | |
972 | ||
49ae25b0 | 973 | dev_dbg(&intf->dev, "Resuming device\n"); |
1a2ea1df ON |
974 | spin_lock_irqsave(&kaweth->device_lock, flags); |
975 | kaweth->status &= ~KAWETH_STATUS_SUSPENDING; | |
976 | spin_unlock_irqrestore(&kaweth->device_lock, flags); | |
977 | ||
978 | if (!kaweth->opened) | |
979 | return 0; | |
980 | kaweth_resubmit_rx_urb(kaweth, GFP_NOIO); | |
981 | kaweth_resubmit_int_urb(kaweth, GFP_NOIO); | |
982 | ||
983 | return 0; | |
984 | } | |
985 | ||
1da177e4 LT |
986 | /**************************************************************** |
987 | * kaweth_probe | |
988 | ****************************************************************/ | |
321ea8b2 ON |
989 | |
990 | ||
991 | static const struct net_device_ops kaweth_netdev_ops = { | |
992 | .ndo_open = kaweth_open, | |
993 | .ndo_stop = kaweth_close, | |
994 | .ndo_start_xmit = kaweth_start_xmit, | |
995 | .ndo_tx_timeout = kaweth_tx_timeout, | |
afc4b13d | 996 | .ndo_set_rx_mode = kaweth_set_rx_mode, |
321ea8b2 | 997 | .ndo_get_stats = kaweth_netdev_stats, |
635ecaa7 | 998 | .ndo_change_mtu = eth_change_mtu, |
240c102d BH |
999 | .ndo_set_mac_address = eth_mac_addr, |
1000 | .ndo_validate_addr = eth_validate_addr, | |
321ea8b2 ON |
1001 | }; |
1002 | ||
1da177e4 LT |
1003 | static int kaweth_probe( |
1004 | struct usb_interface *intf, | |
1005 | const struct usb_device_id *id /* from id_table */ | |
1006 | ) | |
1007 | { | |
49ae25b0 GKH |
1008 | struct device *dev = &intf->dev; |
1009 | struct usb_device *udev = interface_to_usbdev(intf); | |
1da177e4 LT |
1010 | struct kaweth_device *kaweth; |
1011 | struct net_device *netdev; | |
1012 | const eth_addr_t bcast_addr = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; | |
1013 | int result = 0; | |
1014 | ||
49ae25b0 GKH |
1015 | dev_dbg(dev, |
1016 | "Kawasaki Device Probe (Device number:%d): 0x%4.4x:0x%4.4x:0x%4.4x\n", | |
1017 | udev->devnum, le16_to_cpu(udev->descriptor.idVendor), | |
1018 | le16_to_cpu(udev->descriptor.idProduct), | |
1019 | le16_to_cpu(udev->descriptor.bcdDevice)); | |
1da177e4 | 1020 | |
49ae25b0 | 1021 | dev_dbg(dev, "Device at %p\n", udev); |
1da177e4 | 1022 | |
49ae25b0 GKH |
1023 | dev_dbg(dev, "Descriptor length: %x type: %x\n", |
1024 | (int)udev->descriptor.bLength, | |
1025 | (int)udev->descriptor.bDescriptorType); | |
1da177e4 LT |
1026 | |
1027 | netdev = alloc_etherdev(sizeof(*kaweth)); | |
1028 | if (!netdev) | |
1029 | return -ENOMEM; | |
1030 | ||
1031 | kaweth = netdev_priv(netdev); | |
49ae25b0 | 1032 | kaweth->dev = udev; |
1da177e4 LT |
1033 | kaweth->net = netdev; |
1034 | ||
1035 | spin_lock_init(&kaweth->device_lock); | |
1036 | init_waitqueue_head(&kaweth->term_wait); | |
1037 | ||
49ae25b0 | 1038 | dev_dbg(dev, "Resetting.\n"); |
1da177e4 LT |
1039 | |
1040 | kaweth_reset(kaweth); | |
1041 | ||
1042 | /* | |
1043 | * If high byte of bcdDevice is nonzero, firmware is already | |
1044 | * downloaded. Don't try to do it again, or we'll hang the device. | |
1045 | */ | |
1046 | ||
49ae25b0 GKH |
1047 | if (le16_to_cpu(udev->descriptor.bcdDevice) >> 8) { |
1048 | dev_info(dev, "Firmware present in device.\n"); | |
1da177e4 LT |
1049 | } else { |
1050 | /* Download the firmware */ | |
49ae25b0 | 1051 | dev_info(dev, "Downloading firmware...\n"); |
1da177e4 LT |
1052 | kaweth->firmware_buf = (__u8 *)__get_free_page(GFP_KERNEL); |
1053 | if ((result = kaweth_download_firmware(kaweth, | |
79682499 | 1054 | "kaweth/new_code.bin", |
1da177e4 LT |
1055 | 100, |
1056 | 2)) < 0) { | |
49ae25b0 | 1057 | dev_err(dev, "Error downloading firmware (%d)\n", |
db6b2219 | 1058 | result); |
1da177e4 LT |
1059 | goto err_fw; |
1060 | } | |
1061 | ||
1062 | if ((result = kaweth_download_firmware(kaweth, | |
79682499 | 1063 | "kaweth/new_code_fix.bin", |
1da177e4 LT |
1064 | 100, |
1065 | 3)) < 0) { | |
49ae25b0 | 1066 | dev_err(dev, "Error downloading firmware fix (%d)\n", |
db6b2219 | 1067 | result); |
1da177e4 LT |
1068 | goto err_fw; |
1069 | } | |
1070 | ||
1071 | if ((result = kaweth_download_firmware(kaweth, | |
79682499 | 1072 | "kaweth/trigger_code.bin", |
1da177e4 LT |
1073 | 126, |
1074 | 2)) < 0) { | |
49ae25b0 | 1075 | dev_err(dev, "Error downloading trigger code (%d)\n", |
db6b2219 | 1076 | result); |
1da177e4 LT |
1077 | goto err_fw; |
1078 | ||
1079 | } | |
1080 | ||
1081 | if ((result = kaweth_download_firmware(kaweth, | |
79682499 | 1082 | "kaweth/trigger_code_fix.bin", |
1da177e4 LT |
1083 | 126, |
1084 | 3)) < 0) { | |
49ae25b0 | 1085 | dev_err(dev, "Error downloading trigger code fix (%d)\n", result); |
1da177e4 LT |
1086 | goto err_fw; |
1087 | } | |
1088 | ||
1089 | ||
1090 | if ((result = kaweth_trigger_firmware(kaweth, 126)) < 0) { | |
49ae25b0 | 1091 | dev_err(dev, "Error triggering firmware (%d)\n", result); |
1da177e4 LT |
1092 | goto err_fw; |
1093 | } | |
1094 | ||
1095 | /* Device will now disappear for a moment... */ | |
49ae25b0 | 1096 | dev_info(dev, "Firmware loaded. I'll be back...\n"); |
1da177e4 LT |
1097 | err_fw: |
1098 | free_page((unsigned long)kaweth->firmware_buf); | |
1099 | free_netdev(netdev); | |
1100 | return -EIO; | |
1101 | } | |
1102 | ||
1103 | result = kaweth_read_configuration(kaweth); | |
1104 | ||
1105 | if(result < 0) { | |
49ae25b0 | 1106 | dev_err(dev, "Error reading configuration (%d), no net device created\n", result); |
1da177e4 LT |
1107 | goto err_free_netdev; |
1108 | } | |
1109 | ||
49ae25b0 GKH |
1110 | dev_info(dev, "Statistics collection: %x\n", kaweth->configuration.statistics_mask); |
1111 | dev_info(dev, "Multicast filter limit: %x\n", kaweth->configuration.max_multicast_filters & ((1 << 15) - 1)); | |
1112 | dev_info(dev, "MTU: %d\n", le16_to_cpu(kaweth->configuration.segment_size)); | |
1113 | dev_info(dev, "Read MAC address %pM\n", kaweth->configuration.hw_addr); | |
1da177e4 LT |
1114 | |
1115 | if(!memcmp(&kaweth->configuration.hw_addr, | |
1116 | &bcast_addr, | |
1117 | sizeof(bcast_addr))) { | |
49ae25b0 | 1118 | dev_err(dev, "Firmware not functioning properly, no net device created\n"); |
1da177e4 LT |
1119 | goto err_free_netdev; |
1120 | } | |
1121 | ||
1122 | if(kaweth_set_urb_size(kaweth, KAWETH_BUF_SIZE) < 0) { | |
49ae25b0 | 1123 | dev_dbg(dev, "Error setting URB size\n"); |
1da177e4 LT |
1124 | goto err_free_netdev; |
1125 | } | |
1126 | ||
1127 | if(kaweth_set_sofs_wait(kaweth, KAWETH_SOFS_TO_WAIT) < 0) { | |
49ae25b0 | 1128 | dev_err(dev, "Error setting SOFS wait\n"); |
1da177e4 LT |
1129 | goto err_free_netdev; |
1130 | } | |
1131 | ||
1132 | result = kaweth_set_receive_filter(kaweth, | |
1133 | KAWETH_PACKET_FILTER_DIRECTED | | |
1134 | KAWETH_PACKET_FILTER_BROADCAST | | |
1135 | KAWETH_PACKET_FILTER_MULTICAST); | |
1136 | ||
1137 | if(result < 0) { | |
49ae25b0 | 1138 | dev_err(dev, "Error setting receive filter\n"); |
1da177e4 LT |
1139 | goto err_free_netdev; |
1140 | } | |
1141 | ||
49ae25b0 | 1142 | dev_dbg(dev, "Initializing net device.\n"); |
1da177e4 | 1143 | |
b98b98f9 ON |
1144 | kaweth->intf = intf; |
1145 | ||
1da177e4 LT |
1146 | kaweth->tx_urb = usb_alloc_urb(0, GFP_KERNEL); |
1147 | if (!kaweth->tx_urb) | |
1148 | goto err_free_netdev; | |
1149 | kaweth->rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1150 | if (!kaweth->rx_urb) | |
1151 | goto err_only_tx; | |
1152 | kaweth->irq_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1153 | if (!kaweth->irq_urb) | |
1154 | goto err_tx_and_rx; | |
1155 | ||
997ea58e | 1156 | kaweth->intbuffer = usb_alloc_coherent( kaweth->dev, |
1da177e4 LT |
1157 | INTBUFFERSIZE, |
1158 | GFP_KERNEL, | |
1159 | &kaweth->intbufferhandle); | |
1160 | if (!kaweth->intbuffer) | |
1161 | goto err_tx_and_rx_and_irq; | |
997ea58e | 1162 | kaweth->rx_buf = usb_alloc_coherent( kaweth->dev, |
1da177e4 LT |
1163 | KAWETH_BUF_SIZE, |
1164 | GFP_KERNEL, | |
1165 | &kaweth->rxbufferhandle); | |
1166 | if (!kaweth->rx_buf) | |
1167 | goto err_all_but_rxbuf; | |
1168 | ||
1169 | memcpy(netdev->broadcast, &bcast_addr, sizeof(bcast_addr)); | |
1170 | memcpy(netdev->dev_addr, &kaweth->configuration.hw_addr, | |
1171 | sizeof(kaweth->configuration.hw_addr)); | |
1172 | ||
321ea8b2 | 1173 | netdev->netdev_ops = &kaweth_netdev_ops; |
1da177e4 | 1174 | netdev->watchdog_timeo = KAWETH_TX_TIMEOUT; |
1da177e4 LT |
1175 | netdev->mtu = le16_to_cpu(kaweth->configuration.segment_size); |
1176 | SET_ETHTOOL_OPS(netdev, &ops); | |
1177 | ||
1178 | /* kaweth is zeroed as part of alloc_netdev */ | |
c4028958 | 1179 | INIT_DELAYED_WORK(&kaweth->lowmem_work, kaweth_resubmit_tl); |
1da177e4 LT |
1180 | usb_set_intfdata(intf, kaweth); |
1181 | ||
1182 | #if 0 | |
1183 | // dma_supported() is deeply broken on almost all architectures | |
49ae25b0 | 1184 | if (dma_supported (dev, 0xffffffffffffffffULL)) |
1da177e4 LT |
1185 | kaweth->net->features |= NETIF_F_HIGHDMA; |
1186 | #endif | |
1187 | ||
49ae25b0 | 1188 | SET_NETDEV_DEV(netdev, dev); |
1da177e4 | 1189 | if (register_netdev(netdev) != 0) { |
49ae25b0 | 1190 | dev_err(dev, "Error registering netdev.\n"); |
1da177e4 LT |
1191 | goto err_intfdata; |
1192 | } | |
1193 | ||
49ae25b0 | 1194 | dev_info(dev, "kaweth interface created at %s\n", |
880c9c66 | 1195 | kaweth->net->name); |
1da177e4 | 1196 | |
49ae25b0 | 1197 | dev_dbg(dev, "Kaweth probe returning.\n"); |
1da177e4 LT |
1198 | |
1199 | return 0; | |
1200 | ||
1201 | err_intfdata: | |
1202 | usb_set_intfdata(intf, NULL); | |
997ea58e | 1203 | usb_free_coherent(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); |
1da177e4 | 1204 | err_all_but_rxbuf: |
997ea58e | 1205 | usb_free_coherent(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); |
1da177e4 LT |
1206 | err_tx_and_rx_and_irq: |
1207 | usb_free_urb(kaweth->irq_urb); | |
1208 | err_tx_and_rx: | |
1209 | usb_free_urb(kaweth->rx_urb); | |
1210 | err_only_tx: | |
1211 | usb_free_urb(kaweth->tx_urb); | |
1212 | err_free_netdev: | |
1213 | free_netdev(netdev); | |
1214 | ||
1215 | return -EIO; | |
1216 | } | |
1217 | ||
1218 | /**************************************************************** | |
1219 | * kaweth_disconnect | |
1220 | ****************************************************************/ | |
1221 | static void kaweth_disconnect(struct usb_interface *intf) | |
1222 | { | |
1223 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
1224 | struct net_device *netdev; | |
1225 | ||
880c9c66 | 1226 | dev_info(&intf->dev, "Unregistering\n"); |
1da177e4 LT |
1227 | |
1228 | usb_set_intfdata(intf, NULL); | |
1229 | if (!kaweth) { | |
25985edc | 1230 | dev_warn(&intf->dev, "unregistering non-existent device\n"); |
1da177e4 LT |
1231 | return; |
1232 | } | |
1233 | netdev = kaweth->net; | |
1da177e4 | 1234 | |
49ae25b0 | 1235 | netdev_dbg(kaweth->net, "Unregistering net device\n"); |
1da177e4 LT |
1236 | unregister_netdev(netdev); |
1237 | ||
1238 | usb_free_urb(kaweth->rx_urb); | |
1239 | usb_free_urb(kaweth->tx_urb); | |
1240 | usb_free_urb(kaweth->irq_urb); | |
1241 | ||
997ea58e DM |
1242 | usb_free_coherent(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); |
1243 | usb_free_coherent(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); | |
1da177e4 LT |
1244 | |
1245 | free_netdev(netdev); | |
1246 | } | |
1247 | ||
1248 | ||
1249 | // FIXME this completion stuff is a modified clone of | |
1250 | // an OLD version of some stuff in usb.c ... | |
1251 | struct usb_api_data { | |
1252 | wait_queue_head_t wqh; | |
1253 | int done; | |
1254 | }; | |
1255 | ||
1256 | /*-------------------------------------------------------------------* | |
1257 | * completion handler for compatibility wrappers (sync control/bulk) * | |
1258 | *-------------------------------------------------------------------*/ | |
7d12e780 | 1259 | static void usb_api_blocking_completion(struct urb *urb) |
1da177e4 LT |
1260 | { |
1261 | struct usb_api_data *awd = (struct usb_api_data *)urb->context; | |
1262 | ||
1263 | awd->done=1; | |
1264 | wake_up(&awd->wqh); | |
1265 | } | |
1266 | ||
1267 | /*-------------------------------------------------------------------* | |
1268 | * COMPATIBILITY STUFF * | |
1269 | *-------------------------------------------------------------------*/ | |
1270 | ||
1271 | // Starts urb and waits for completion or timeout | |
1272 | static int usb_start_wait_urb(struct urb *urb, int timeout, int* actual_length) | |
1273 | { | |
1274 | struct usb_api_data awd; | |
1275 | int status; | |
1276 | ||
1277 | init_waitqueue_head(&awd.wqh); | |
1278 | awd.done = 0; | |
1279 | ||
1280 | urb->context = &awd; | |
1281 | status = usb_submit_urb(urb, GFP_NOIO); | |
1282 | if (status) { | |
1283 | // something went wrong | |
1284 | usb_free_urb(urb); | |
1285 | return status; | |
1286 | } | |
1287 | ||
1288 | if (!wait_event_timeout(awd.wqh, awd.done, timeout)) { | |
1289 | // timeout | |
4dc89948 | 1290 | dev_warn(&urb->dev->dev, "usb_control/bulk_msg: timeout\n"); |
1da177e4 LT |
1291 | usb_kill_urb(urb); // remove urb safely |
1292 | status = -ETIMEDOUT; | |
1293 | } | |
1294 | else { | |
1295 | status = urb->status; | |
1296 | } | |
1297 | ||
1298 | if (actual_length) { | |
1299 | *actual_length = urb->actual_length; | |
1300 | } | |
1301 | ||
1302 | usb_free_urb(urb); | |
1303 | return status; | |
1304 | } | |
1305 | ||
1306 | /*-------------------------------------------------------------------*/ | |
1307 | // returns status (negative) or length (positive) | |
1308 | static int kaweth_internal_control_msg(struct usb_device *usb_dev, | |
1309 | unsigned int pipe, | |
1310 | struct usb_ctrlrequest *cmd, void *data, | |
1311 | int len, int timeout) | |
1312 | { | |
1313 | struct urb *urb; | |
1314 | int retv; | |
b98b98f9 | 1315 | int length = 0; /* shut up GCC */ |
1da177e4 | 1316 | |
e4c7f259 | 1317 | urb = usb_alloc_urb(0, GFP_ATOMIC); |
1da177e4 LT |
1318 | if (!urb) |
1319 | return -ENOMEM; | |
1320 | ||
1321 | usb_fill_control_urb(urb, usb_dev, pipe, (unsigned char*)cmd, data, | |
1322 | len, usb_api_blocking_completion, NULL); | |
1323 | ||
1324 | retv = usb_start_wait_urb(urb, timeout, &length); | |
1325 | if (retv < 0) { | |
1326 | return retv; | |
1327 | } | |
1328 | else { | |
1329 | return length; | |
1330 | } | |
1331 | } | |
1332 | ||
d632eb1b | 1333 | module_usb_driver(kaweth_driver); |