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aaf4989b | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /**************************************************************** |
3 | * | |
4 | * kaweth.c - driver for KL5KUSB101 based USB->Ethernet | |
5 | * | |
6 | * (c) 2000 Interlan Communications | |
7 | * (c) 2000 Stephane Alnet | |
8 | * (C) 2001 Brad Hards | |
9 | * (C) 2002 Oliver Neukum | |
10 | * | |
11 | * Original author: The Zapman <zapman@interlan.net> | |
12 | * Inspired by, and much credit goes to Michael Rothwell | |
13 | * <rothwell@interlan.net> for the test equipment, help, and patience | |
14 | * Based off of (and with thanks to) Petko Manolov's pegaus.c driver. | |
15 | * Also many thanks to Joel Silverman and Ed Surprenant at Kawasaki | |
16 | * for providing the firmware and driver resources. | |
17 | * | |
1da177e4 LT |
18 | ****************************************************************/ |
19 | ||
20 | /* TODO: | |
1da177e4 LT |
21 | * Develop test procedures for USB net interfaces |
22 | * Run test procedures | |
23 | * Fix bugs from previous two steps | |
24 | * Snoop other OSs for any tricks we're not doing | |
1da177e4 LT |
25 | * Reduce arbitrary timeouts |
26 | * Smart multicast support | |
27 | * Temporary MAC change support | |
28 | * Tunable SOFs parameter - ioctl()? | |
29 | * Ethernet stats collection | |
30 | * Code formatting improvements | |
31 | */ | |
32 | ||
33 | #include <linux/module.h> | |
1da177e4 LT |
34 | #include <linux/slab.h> |
35 | #include <linux/string.h> | |
1da177e4 LT |
36 | #include <linux/delay.h> |
37 | #include <linux/netdevice.h> | |
38 | #include <linux/etherdevice.h> | |
39 | #include <linux/usb.h> | |
40 | #include <linux/types.h> | |
41 | #include <linux/ethtool.h> | |
1da177e4 LT |
42 | #include <linux/dma-mapping.h> |
43 | #include <linux/wait.h> | |
79682499 | 44 | #include <linux/firmware.h> |
7c0f6ba6 | 45 | #include <linux/uaccess.h> |
1da177e4 LT |
46 | #include <asm/byteorder.h> |
47 | ||
48 | #undef DEBUG | |
49 | ||
1da177e4 LT |
50 | #define KAWETH_MTU 1514 |
51 | #define KAWETH_BUF_SIZE 1664 | |
52 | #define KAWETH_TX_TIMEOUT (5 * HZ) | |
53 | #define KAWETH_SCRATCH_SIZE 32 | |
54 | #define KAWETH_FIRMWARE_BUF_SIZE 4096 | |
2b2b2e35 | 55 | #define KAWETH_CONTROL_TIMEOUT (30000) |
1da177e4 LT |
56 | |
57 | #define KAWETH_STATUS_BROKEN 0x0000001 | |
58 | #define KAWETH_STATUS_CLOSING 0x0000002 | |
1a2ea1df ON |
59 | #define KAWETH_STATUS_SUSPENDING 0x0000004 |
60 | ||
61 | #define KAWETH_STATUS_BLOCKED (KAWETH_STATUS_CLOSING | KAWETH_STATUS_SUSPENDING) | |
1da177e4 LT |
62 | |
63 | #define KAWETH_PACKET_FILTER_PROMISCUOUS 0x01 | |
64 | #define KAWETH_PACKET_FILTER_ALL_MULTICAST 0x02 | |
65 | #define KAWETH_PACKET_FILTER_DIRECTED 0x04 | |
66 | #define KAWETH_PACKET_FILTER_BROADCAST 0x08 | |
67 | #define KAWETH_PACKET_FILTER_MULTICAST 0x10 | |
68 | ||
69 | /* Table 7 */ | |
70 | #define KAWETH_COMMAND_GET_ETHERNET_DESC 0x00 | |
71 | #define KAWETH_COMMAND_MULTICAST_FILTERS 0x01 | |
72 | #define KAWETH_COMMAND_SET_PACKET_FILTER 0x02 | |
73 | #define KAWETH_COMMAND_STATISTICS 0x03 | |
74 | #define KAWETH_COMMAND_SET_TEMP_MAC 0x06 | |
75 | #define KAWETH_COMMAND_GET_TEMP_MAC 0x07 | |
76 | #define KAWETH_COMMAND_SET_URB_SIZE 0x08 | |
77 | #define KAWETH_COMMAND_SET_SOFS_WAIT 0x09 | |
78 | #define KAWETH_COMMAND_SCAN 0xFF | |
79 | ||
80 | #define KAWETH_SOFS_TO_WAIT 0x05 | |
81 | ||
82 | #define INTBUFFERSIZE 4 | |
83 | ||
84 | #define STATE_OFFSET 0 | |
85 | #define STATE_MASK 0x40 | |
86 | #define STATE_SHIFT 5 | |
87 | ||
1a2ea1df ON |
88 | #define IS_BLOCKED(s) (s & KAWETH_STATUS_BLOCKED) |
89 | ||
1da177e4 LT |
90 | |
91 | 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>"); | |
92 | MODULE_DESCRIPTION("KL5USB101 USB Ethernet driver"); | |
93 | MODULE_LICENSE("GPL"); | |
79682499 DW |
94 | MODULE_FIRMWARE("kaweth/new_code.bin"); |
95 | MODULE_FIRMWARE("kaweth/new_code_fix.bin"); | |
96 | MODULE_FIRMWARE("kaweth/trigger_code.bin"); | |
97 | MODULE_FIRMWARE("kaweth/trigger_code_fix.bin"); | |
1da177e4 LT |
98 | |
99 | static const char driver_name[] = "kaweth"; | |
100 | ||
101 | static int kaweth_probe( | |
102 | struct usb_interface *intf, | |
103 | const struct usb_device_id *id /* from id_table */ | |
104 | ); | |
105 | static void kaweth_disconnect(struct usb_interface *intf); | |
1a2ea1df ON |
106 | static int kaweth_suspend(struct usb_interface *intf, pm_message_t message); |
107 | static int kaweth_resume(struct usb_interface *intf); | |
1da177e4 LT |
108 | |
109 | /**************************************************************** | |
110 | * usb_device_id | |
111 | ****************************************************************/ | |
06fa59a0 | 112 | static const struct usb_device_id usb_klsi_table[] = { |
1da177e4 LT |
113 | { USB_DEVICE(0x03e8, 0x0008) }, /* AOX Endpoints USB Ethernet */ |
114 | { USB_DEVICE(0x04bb, 0x0901) }, /* I-O DATA USB-ET/T */ | |
115 | { USB_DEVICE(0x0506, 0x03e8) }, /* 3Com 3C19250 */ | |
116 | { USB_DEVICE(0x0506, 0x11f8) }, /* 3Com 3C460 */ | |
117 | { USB_DEVICE(0x0557, 0x2002) }, /* ATEN USB Ethernet */ | |
118 | { USB_DEVICE(0x0557, 0x4000) }, /* D-Link DSB-650C */ | |
119 | { USB_DEVICE(0x0565, 0x0002) }, /* Peracom Enet */ | |
120 | { USB_DEVICE(0x0565, 0x0003) }, /* Optus@Home UEP1045A */ | |
121 | { USB_DEVICE(0x0565, 0x0005) }, /* Peracom Enet2 */ | |
122 | { USB_DEVICE(0x05e9, 0x0008) }, /* KLSI KL5KUSB101B */ | |
123 | { USB_DEVICE(0x05e9, 0x0009) }, /* KLSI KL5KUSB101B (Board change) */ | |
124 | { USB_DEVICE(0x066b, 0x2202) }, /* Linksys USB10T */ | |
125 | { USB_DEVICE(0x06e1, 0x0008) }, /* ADS USB-10BT */ | |
126 | { USB_DEVICE(0x06e1, 0x0009) }, /* ADS USB-10BT */ | |
127 | { USB_DEVICE(0x0707, 0x0100) }, /* SMC 2202USB */ | |
128 | { USB_DEVICE(0x07aa, 0x0001) }, /* Correga K.K. */ | |
129 | { USB_DEVICE(0x07b8, 0x4000) }, /* D-Link DU-E10 */ | |
dacf4fc8 | 130 | { USB_DEVICE(0x07c9, 0xb010) }, /* Allied Telesyn AT-USB10 USB Ethernet Adapter */ |
1da177e4 LT |
131 | { USB_DEVICE(0x0846, 0x1001) }, /* NetGear EA-101 */ |
132 | { USB_DEVICE(0x0846, 0x1002) }, /* NetGear EA-101 */ | |
133 | { USB_DEVICE(0x085a, 0x0008) }, /* PortGear Ethernet Adapter */ | |
134 | { USB_DEVICE(0x085a, 0x0009) }, /* PortGear Ethernet Adapter */ | |
135 | { USB_DEVICE(0x087d, 0x5704) }, /* Jaton USB Ethernet Device Adapter */ | |
136 | { USB_DEVICE(0x0951, 0x0008) }, /* Kingston Technology USB Ethernet Adapter */ | |
137 | { USB_DEVICE(0x095a, 0x3003) }, /* Portsmith Express Ethernet Adapter */ | |
138 | { USB_DEVICE(0x10bd, 0x1427) }, /* ASANTE USB To Ethernet Adapter */ | |
139 | { USB_DEVICE(0x1342, 0x0204) }, /* Mobility USB-Ethernet Adapter */ | |
140 | { USB_DEVICE(0x13d2, 0x0400) }, /* Shark Pocket Adapter */ | |
141 | { USB_DEVICE(0x1485, 0x0001) }, /* Silicom U2E */ | |
142 | { USB_DEVICE(0x1485, 0x0002) }, /* Psion Dacom Gold Port Ethernet */ | |
143 | { USB_DEVICE(0x1645, 0x0005) }, /* Entrega E45 */ | |
144 | { USB_DEVICE(0x1645, 0x0008) }, /* Entrega USB Ethernet Adapter */ | |
145 | { USB_DEVICE(0x1645, 0x8005) }, /* PortGear Ethernet Adapter */ | |
486ba2a9 | 146 | { USB_DEVICE(0x1668, 0x0323) }, /* Actiontec USB Ethernet */ |
1da177e4 LT |
147 | { USB_DEVICE(0x2001, 0x4000) }, /* D-link DSB-650C */ |
148 | {} /* Null terminator */ | |
149 | }; | |
150 | ||
151 | MODULE_DEVICE_TABLE (usb, usb_klsi_table); | |
152 | ||
153 | /**************************************************************** | |
154 | * kaweth_driver | |
155 | ****************************************************************/ | |
156 | static struct usb_driver kaweth_driver = { | |
1da177e4 LT |
157 | .name = driver_name, |
158 | .probe = kaweth_probe, | |
159 | .disconnect = kaweth_disconnect, | |
1a2ea1df ON |
160 | .suspend = kaweth_suspend, |
161 | .resume = kaweth_resume, | |
1da177e4 | 162 | .id_table = usb_klsi_table, |
b98b98f9 | 163 | .supports_autosuspend = 1, |
e1f12eb6 | 164 | .disable_hub_initiated_lpm = 1, |
1da177e4 LT |
165 | }; |
166 | ||
167 | typedef __u8 eth_addr_t[6]; | |
168 | ||
169 | /**************************************************************** | |
170 | * usb_eth_dev | |
171 | ****************************************************************/ | |
172 | struct usb_eth_dev { | |
173 | char *name; | |
174 | __u16 vendor; | |
175 | __u16 device; | |
176 | void *pdata; | |
177 | }; | |
178 | ||
179 | /**************************************************************** | |
180 | * kaweth_ethernet_configuration | |
181 | * Refer Table 8 | |
182 | ****************************************************************/ | |
183 | struct kaweth_ethernet_configuration | |
184 | { | |
185 | __u8 size; | |
186 | __u8 reserved1; | |
187 | __u8 reserved2; | |
188 | eth_addr_t hw_addr; | |
189 | __u32 statistics_mask; | |
190 | __le16 segment_size; | |
191 | __u16 max_multicast_filters; | |
192 | __u8 reserved3; | |
ba2d3587 | 193 | } __packed; |
1da177e4 LT |
194 | |
195 | /**************************************************************** | |
196 | * kaweth_device | |
197 | ****************************************************************/ | |
198 | struct kaweth_device | |
199 | { | |
200 | spinlock_t device_lock; | |
201 | ||
202 | __u32 status; | |
203 | int end; | |
1da177e4 LT |
204 | int suspend_lowmem_rx; |
205 | int suspend_lowmem_ctrl; | |
206 | int linkstate; | |
1a2ea1df | 207 | int opened; |
c4028958 | 208 | struct delayed_work lowmem_work; |
1da177e4 LT |
209 | |
210 | struct usb_device *dev; | |
b98b98f9 | 211 | struct usb_interface *intf; |
1da177e4 LT |
212 | struct net_device *net; |
213 | wait_queue_head_t term_wait; | |
214 | ||
215 | struct urb *rx_urb; | |
216 | struct urb *tx_urb; | |
217 | struct urb *irq_urb; | |
218 | ||
219 | dma_addr_t intbufferhandle; | |
220 | __u8 *intbuffer; | |
221 | dma_addr_t rxbufferhandle; | |
222 | __u8 *rx_buf; | |
223 | ||
224 | ||
225 | struct sk_buff *tx_skb; | |
226 | ||
227 | __u8 *firmware_buf; | |
228 | __u8 scratch[KAWETH_SCRATCH_SIZE]; | |
229 | __u16 packet_filter_bitmap; | |
230 | ||
231 | struct kaweth_ethernet_configuration configuration; | |
1da177e4 LT |
232 | }; |
233 | ||
1da177e4 LT |
234 | /**************************************************************** |
235 | * kaweth_read_configuration | |
236 | ****************************************************************/ | |
237 | static int kaweth_read_configuration(struct kaweth_device *kaweth) | |
238 | { | |
af3563be | 239 | return usb_control_msg(kaweth->dev, usb_rcvctrlpipe(kaweth->dev, 0), |
1da177e4 LT |
240 | KAWETH_COMMAND_GET_ETHERNET_DESC, |
241 | USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE, | |
af3563be SAS |
242 | 0, 0, |
243 | &kaweth->configuration, | |
1da177e4 LT |
244 | sizeof(kaweth->configuration), |
245 | KAWETH_CONTROL_TIMEOUT); | |
1da177e4 LT |
246 | } |
247 | ||
248 | /**************************************************************** | |
249 | * kaweth_set_urb_size | |
250 | ****************************************************************/ | |
251 | static int kaweth_set_urb_size(struct kaweth_device *kaweth, __u16 urb_size) | |
252 | { | |
49ae25b0 | 253 | netdev_dbg(kaweth->net, "Setting URB size to %d\n", (unsigned)urb_size); |
1da177e4 | 254 | |
af3563be SAS |
255 | return usb_control_msg(kaweth->dev, usb_sndctrlpipe(kaweth->dev, 0), |
256 | KAWETH_COMMAND_SET_URB_SIZE, | |
257 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
258 | urb_size, 0, | |
259 | &kaweth->scratch, 0, | |
260 | KAWETH_CONTROL_TIMEOUT); | |
1da177e4 LT |
261 | } |
262 | ||
263 | /**************************************************************** | |
264 | * kaweth_set_sofs_wait | |
265 | ****************************************************************/ | |
266 | static int kaweth_set_sofs_wait(struct kaweth_device *kaweth, __u16 sofs_wait) | |
267 | { | |
49ae25b0 | 268 | netdev_dbg(kaweth->net, "Set SOFS wait to %d\n", (unsigned)sofs_wait); |
1da177e4 | 269 | |
af3563be SAS |
270 | return usb_control_msg(kaweth->dev, usb_sndctrlpipe(kaweth->dev, 0), |
271 | KAWETH_COMMAND_SET_SOFS_WAIT, | |
272 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
273 | sofs_wait, 0, | |
274 | &kaweth->scratch, 0, | |
275 | KAWETH_CONTROL_TIMEOUT); | |
1da177e4 LT |
276 | } |
277 | ||
278 | /**************************************************************** | |
279 | * kaweth_set_receive_filter | |
280 | ****************************************************************/ | |
281 | static int kaweth_set_receive_filter(struct kaweth_device *kaweth, | |
282 | __u16 receive_filter) | |
283 | { | |
49ae25b0 GKH |
284 | netdev_dbg(kaweth->net, "Set receive filter to %d\n", |
285 | (unsigned)receive_filter); | |
1da177e4 | 286 | |
af3563be SAS |
287 | return usb_control_msg(kaweth->dev, usb_sndctrlpipe(kaweth->dev, 0), |
288 | KAWETH_COMMAND_SET_PACKET_FILTER, | |
289 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
290 | receive_filter, 0, | |
291 | &kaweth->scratch, 0, | |
292 | KAWETH_CONTROL_TIMEOUT); | |
1da177e4 LT |
293 | } |
294 | ||
295 | /**************************************************************** | |
296 | * kaweth_download_firmware | |
297 | ****************************************************************/ | |
298 | static int kaweth_download_firmware(struct kaweth_device *kaweth, | |
79682499 | 299 | const char *fwname, |
1da177e4 LT |
300 | __u8 interrupt, |
301 | __u8 type) | |
302 | { | |
79682499 DW |
303 | const struct firmware *fw; |
304 | int data_len; | |
305 | int ret; | |
306 | ||
307 | ret = request_firmware(&fw, fwname, &kaweth->dev->dev); | |
308 | if (ret) { | |
db6b2219 | 309 | dev_err(&kaweth->intf->dev, "Firmware request failed\n"); |
79682499 DW |
310 | return ret; |
311 | } | |
312 | ||
313 | if (fw->size > KAWETH_FIRMWARE_BUF_SIZE) { | |
db6b2219 GKH |
314 | dev_err(&kaweth->intf->dev, "Firmware too big: %zu\n", |
315 | fw->size); | |
986e3f6e | 316 | release_firmware(fw); |
1da177e4 LT |
317 | return -ENOSPC; |
318 | } | |
79682499 DW |
319 | data_len = fw->size; |
320 | memcpy(kaweth->firmware_buf, fw->data, fw->size); | |
1da177e4 | 321 | |
79682499 | 322 | release_firmware(fw); |
1da177e4 LT |
323 | |
324 | kaweth->firmware_buf[2] = (data_len & 0xFF) - 7; | |
325 | kaweth->firmware_buf[3] = data_len >> 8; | |
326 | kaweth->firmware_buf[4] = type; | |
327 | kaweth->firmware_buf[5] = interrupt; | |
328 | ||
49ae25b0 | 329 | netdev_dbg(kaweth->net, "High: %i, Low:%i\n", kaweth->firmware_buf[3], |
1da177e4 LT |
330 | kaweth->firmware_buf[2]); |
331 | ||
49ae25b0 GKH |
332 | netdev_dbg(kaweth->net, |
333 | "Downloading firmware at %p to kaweth device at %p\n", | |
0abc1cee | 334 | kaweth->firmware_buf, kaweth); |
49ae25b0 | 335 | netdev_dbg(kaweth->net, "Firmware length: %d\n", data_len); |
1da177e4 | 336 | |
af3563be | 337 | return usb_control_msg(kaweth->dev, usb_sndctrlpipe(kaweth->dev, 0), |
1da177e4 LT |
338 | KAWETH_COMMAND_SCAN, |
339 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
af3563be SAS |
340 | 0, 0, |
341 | kaweth->firmware_buf, data_len, | |
1da177e4 LT |
342 | KAWETH_CONTROL_TIMEOUT); |
343 | } | |
344 | ||
345 | /**************************************************************** | |
346 | * kaweth_trigger_firmware | |
347 | ****************************************************************/ | |
348 | static int kaweth_trigger_firmware(struct kaweth_device *kaweth, | |
349 | __u8 interrupt) | |
350 | { | |
351 | kaweth->firmware_buf[0] = 0xB6; | |
352 | kaweth->firmware_buf[1] = 0xC3; | |
353 | kaweth->firmware_buf[2] = 0x01; | |
354 | kaweth->firmware_buf[3] = 0x00; | |
355 | kaweth->firmware_buf[4] = 0x06; | |
356 | kaweth->firmware_buf[5] = interrupt; | |
357 | kaweth->firmware_buf[6] = 0x00; | |
358 | kaweth->firmware_buf[7] = 0x00; | |
359 | ||
af3563be SAS |
360 | return usb_control_msg(kaweth->dev, usb_sndctrlpipe(kaweth->dev, 0), |
361 | KAWETH_COMMAND_SCAN, | |
362 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
363 | 0, 0, | |
364 | (void *)kaweth->firmware_buf, 8, | |
365 | KAWETH_CONTROL_TIMEOUT); | |
1da177e4 LT |
366 | } |
367 | ||
368 | /**************************************************************** | |
369 | * kaweth_reset | |
370 | ****************************************************************/ | |
371 | static int kaweth_reset(struct kaweth_device *kaweth) | |
372 | { | |
373 | int result; | |
374 | ||
f0816ce3 | 375 | result = usb_reset_configuration(kaweth->dev); |
f2d45cd9 | 376 | mdelay(10); |
1da177e4 | 377 | |
49ae25b0 | 378 | netdev_dbg(kaweth->net, "kaweth_reset() returns %d.\n", result); |
1da177e4 LT |
379 | |
380 | return result; | |
381 | } | |
382 | ||
7d12e780 | 383 | static void kaweth_usb_receive(struct urb *); |
55016f10 | 384 | static int kaweth_resubmit_rx_urb(struct kaweth_device *, gfp_t); |
1da177e4 LT |
385 | |
386 | /**************************************************************** | |
387 | int_callback | |
388 | *****************************************************************/ | |
389 | ||
55016f10 | 390 | static void kaweth_resubmit_int_urb(struct kaweth_device *kaweth, gfp_t mf) |
1da177e4 LT |
391 | { |
392 | int status; | |
393 | ||
394 | status = usb_submit_urb (kaweth->irq_urb, mf); | |
395 | if (unlikely(status == -ENOMEM)) { | |
396 | kaweth->suspend_lowmem_ctrl = 1; | |
397 | schedule_delayed_work(&kaweth->lowmem_work, HZ/4); | |
398 | } else { | |
399 | kaweth->suspend_lowmem_ctrl = 0; | |
400 | } | |
401 | ||
402 | if (status) | |
db6b2219 GKH |
403 | dev_err(&kaweth->intf->dev, |
404 | "can't resubmit intr, %s-%s, status %d\n", | |
405 | kaweth->dev->bus->bus_name, | |
406 | kaweth->dev->devpath, status); | |
1da177e4 LT |
407 | } |
408 | ||
7d12e780 | 409 | static void int_callback(struct urb *u) |
1da177e4 LT |
410 | { |
411 | struct kaweth_device *kaweth = u->context; | |
412 | int act_state; | |
c94cb314 | 413 | int status = u->status; |
1da177e4 | 414 | |
c94cb314 | 415 | switch (status) { |
1da177e4 LT |
416 | case 0: /* success */ |
417 | break; | |
418 | case -ECONNRESET: /* unlink */ | |
419 | case -ENOENT: | |
420 | case -ESHUTDOWN: | |
421 | return; | |
422 | /* -EPIPE: should clear the halt */ | |
423 | default: /* error */ | |
424 | goto resubmit; | |
425 | } | |
426 | ||
427 | /* we check the link state to report changes */ | |
428 | if (kaweth->linkstate != (act_state = ( kaweth->intbuffer[STATE_OFFSET] | STATE_MASK) >> STATE_SHIFT)) { | |
58125f95 | 429 | if (act_state) |
1da177e4 LT |
430 | netif_carrier_on(kaweth->net); |
431 | else | |
432 | netif_carrier_off(kaweth->net); | |
433 | ||
434 | kaweth->linkstate = act_state; | |
435 | } | |
436 | resubmit: | |
437 | kaweth_resubmit_int_urb(kaweth, GFP_ATOMIC); | |
438 | } | |
439 | ||
c4028958 | 440 | static void kaweth_resubmit_tl(struct work_struct *work) |
1da177e4 | 441 | { |
c4028958 DH |
442 | struct kaweth_device *kaweth = |
443 | container_of(work, struct kaweth_device, lowmem_work.work); | |
1da177e4 | 444 | |
1a2ea1df | 445 | if (IS_BLOCKED(kaweth->status)) |
1da177e4 LT |
446 | return; |
447 | ||
448 | if (kaweth->suspend_lowmem_rx) | |
449 | kaweth_resubmit_rx_urb(kaweth, GFP_NOIO); | |
450 | ||
451 | if (kaweth->suspend_lowmem_ctrl) | |
452 | kaweth_resubmit_int_urb(kaweth, GFP_NOIO); | |
453 | } | |
454 | ||
455 | ||
456 | /**************************************************************** | |
457 | * kaweth_resubmit_rx_urb | |
458 | ****************************************************************/ | |
459 | static int kaweth_resubmit_rx_urb(struct kaweth_device *kaweth, | |
55016f10 | 460 | gfp_t mem_flags) |
1da177e4 LT |
461 | { |
462 | int result; | |
463 | ||
464 | usb_fill_bulk_urb(kaweth->rx_urb, | |
465 | kaweth->dev, | |
466 | usb_rcvbulkpipe(kaweth->dev, 1), | |
467 | kaweth->rx_buf, | |
468 | KAWETH_BUF_SIZE, | |
469 | kaweth_usb_receive, | |
470 | kaweth); | |
471 | kaweth->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
472 | kaweth->rx_urb->transfer_dma = kaweth->rxbufferhandle; | |
473 | ||
474 | if((result = usb_submit_urb(kaweth->rx_urb, mem_flags))) { | |
475 | if (result == -ENOMEM) { | |
476 | kaweth->suspend_lowmem_rx = 1; | |
477 | schedule_delayed_work(&kaweth->lowmem_work, HZ/4); | |
478 | } | |
db6b2219 GKH |
479 | dev_err(&kaweth->intf->dev, "resubmitting rx_urb %d failed\n", |
480 | result); | |
1da177e4 LT |
481 | } else { |
482 | kaweth->suspend_lowmem_rx = 0; | |
483 | } | |
484 | ||
485 | return result; | |
486 | } | |
487 | ||
a19c2619 SAS |
488 | static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth, |
489 | bool may_sleep); | |
1da177e4 LT |
490 | |
491 | /**************************************************************** | |
492 | * kaweth_usb_receive | |
493 | ****************************************************************/ | |
7d12e780 | 494 | static void kaweth_usb_receive(struct urb *urb) |
1da177e4 | 495 | { |
49ae25b0 | 496 | struct device *dev = &urb->dev->dev; |
1da177e4 LT |
497 | struct kaweth_device *kaweth = urb->context; |
498 | struct net_device *net = kaweth->net; | |
c94cb314 | 499 | int status = urb->status; |
ba49fed8 | 500 | unsigned long flags; |
1da177e4 LT |
501 | int count = urb->actual_length; |
502 | int count2 = urb->transfer_buffer_length; | |
503 | ||
504 | __u16 pkt_len = le16_to_cpup((__le16 *)kaweth->rx_buf); | |
505 | ||
506 | struct sk_buff *skb; | |
507 | ||
710b523a | 508 | if (unlikely(status == -EPIPE)) { |
6ffa770e | 509 | net->stats.rx_errors++; |
1da177e4 LT |
510 | kaweth->end = 1; |
511 | wake_up(&kaweth->term_wait); | |
49ae25b0 | 512 | dev_dbg(dev, "Status was -EPIPE.\n"); |
1da177e4 LT |
513 | return; |
514 | } | |
710b523a LF |
515 | if (unlikely(status == -ECONNRESET || status == -ESHUTDOWN)) { |
516 | /* we are killed - set a flag and wake the disconnect handler */ | |
517 | kaweth->end = 1; | |
518 | wake_up(&kaweth->term_wait); | |
49ae25b0 | 519 | dev_dbg(dev, "Status was -ECONNRESET or -ESHUTDOWN.\n"); |
710b523a LF |
520 | return; |
521 | } | |
522 | if (unlikely(status == -EPROTO || status == -ETIME || | |
523 | status == -EILSEQ)) { | |
6ffa770e | 524 | net->stats.rx_errors++; |
49ae25b0 | 525 | dev_dbg(dev, "Status was -EPROTO, -ETIME, or -EILSEQ.\n"); |
710b523a LF |
526 | return; |
527 | } | |
528 | if (unlikely(status == -EOVERFLOW)) { | |
6ffa770e | 529 | net->stats.rx_errors++; |
49ae25b0 | 530 | dev_dbg(dev, "Status was -EOVERFLOW.\n"); |
710b523a | 531 | } |
ba49fed8 | 532 | spin_lock_irqsave(&kaweth->device_lock, flags); |
1a2ea1df | 533 | if (IS_BLOCKED(kaweth->status)) { |
ba49fed8 | 534 | spin_unlock_irqrestore(&kaweth->device_lock, flags); |
1da177e4 | 535 | return; |
1a2ea1df | 536 | } |
ba49fed8 | 537 | spin_unlock_irqrestore(&kaweth->device_lock, flags); |
1da177e4 | 538 | |
c94cb314 | 539 | if(status && status != -EREMOTEIO && count != 1) { |
db6b2219 GKH |
540 | dev_err(&kaweth->intf->dev, |
541 | "%s RX status: %d count: %d packet_len: %d\n", | |
542 | net->name, status, count, (int)pkt_len); | |
1da177e4 LT |
543 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); |
544 | return; | |
545 | } | |
546 | ||
547 | if(kaweth->net && (count > 2)) { | |
548 | if(pkt_len > (count - 2)) { | |
db6b2219 GKH |
549 | dev_err(&kaweth->intf->dev, |
550 | "Packet length too long for USB frame (pkt_len: %x, count: %x)\n", | |
551 | pkt_len, count); | |
552 | dev_err(&kaweth->intf->dev, "Packet len & 2047: %x\n", | |
553 | pkt_len & 2047); | |
554 | dev_err(&kaweth->intf->dev, "Count 2: %x\n", count2); | |
1da177e4 LT |
555 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); |
556 | return; | |
557 | } | |
558 | ||
559 | if(!(skb = dev_alloc_skb(pkt_len+2))) { | |
560 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | |
561 | return; | |
562 | } | |
563 | ||
564 | skb_reserve(skb, 2); /* Align IP on 16 byte boundaries */ | |
565 | ||
8c7b7faa | 566 | skb_copy_to_linear_data(skb, kaweth->rx_buf + 2, pkt_len); |
1da177e4 LT |
567 | |
568 | skb_put(skb, pkt_len); | |
569 | ||
570 | skb->protocol = eth_type_trans(skb, net); | |
571 | ||
572 | netif_rx(skb); | |
573 | ||
6ffa770e TK |
574 | net->stats.rx_packets++; |
575 | net->stats.rx_bytes += pkt_len; | |
1da177e4 LT |
576 | } |
577 | ||
578 | kaweth_resubmit_rx_urb(kaweth, GFP_ATOMIC); | |
579 | } | |
580 | ||
581 | /**************************************************************** | |
582 | * kaweth_open | |
583 | ****************************************************************/ | |
584 | static int kaweth_open(struct net_device *net) | |
585 | { | |
586 | struct kaweth_device *kaweth = netdev_priv(net); | |
587 | int res; | |
588 | ||
b98b98f9 ON |
589 | res = usb_autopm_get_interface(kaweth->intf); |
590 | if (res) { | |
db6b2219 | 591 | dev_err(&kaweth->intf->dev, "Interface cannot be resumed.\n"); |
b98b98f9 ON |
592 | return -EIO; |
593 | } | |
1da177e4 LT |
594 | res = kaweth_resubmit_rx_urb(kaweth, GFP_KERNEL); |
595 | if (res) | |
b98b98f9 | 596 | goto err_out; |
1da177e4 LT |
597 | |
598 | usb_fill_int_urb( | |
599 | kaweth->irq_urb, | |
600 | kaweth->dev, | |
601 | usb_rcvintpipe(kaweth->dev, 3), | |
602 | kaweth->intbuffer, | |
603 | INTBUFFERSIZE, | |
604 | int_callback, | |
605 | kaweth, | |
606 | 250); /* overriding the descriptor */ | |
607 | kaweth->irq_urb->transfer_dma = kaweth->intbufferhandle; | |
608 | kaweth->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
609 | ||
610 | res = usb_submit_urb(kaweth->irq_urb, GFP_KERNEL); | |
611 | if (res) { | |
612 | usb_kill_urb(kaweth->rx_urb); | |
b98b98f9 | 613 | goto err_out; |
1da177e4 | 614 | } |
1a2ea1df | 615 | kaweth->opened = 1; |
1da177e4 LT |
616 | |
617 | netif_start_queue(net); | |
618 | ||
a19c2619 | 619 | kaweth_async_set_rx_mode(kaweth, true); |
1da177e4 | 620 | return 0; |
b98b98f9 ON |
621 | |
622 | err_out: | |
ceb0c77e | 623 | usb_autopm_put_interface(kaweth->intf); |
b98b98f9 | 624 | return -EIO; |
1da177e4 LT |
625 | } |
626 | ||
627 | /**************************************************************** | |
b98b98f9 | 628 | * kaweth_kill_urbs |
1da177e4 | 629 | ****************************************************************/ |
1a2ea1df | 630 | static void kaweth_kill_urbs(struct kaweth_device *kaweth) |
1da177e4 | 631 | { |
1da177e4 LT |
632 | usb_kill_urb(kaweth->irq_urb); |
633 | usb_kill_urb(kaweth->rx_urb); | |
d23b536b | 634 | usb_kill_urb(kaweth->tx_urb); |
1da177e4 | 635 | |
4bb073c0 | 636 | cancel_delayed_work_sync(&kaweth->lowmem_work); |
1da177e4 LT |
637 | |
638 | /* a scheduled work may have resubmitted, | |
639 | we hit them again */ | |
640 | usb_kill_urb(kaweth->irq_urb); | |
641 | usb_kill_urb(kaweth->rx_urb); | |
1a2ea1df ON |
642 | } |
643 | ||
644 | /**************************************************************** | |
645 | * kaweth_close | |
646 | ****************************************************************/ | |
647 | static int kaweth_close(struct net_device *net) | |
648 | { | |
649 | struct kaweth_device *kaweth = netdev_priv(net); | |
650 | ||
651 | netif_stop_queue(net); | |
652 | kaweth->opened = 0; | |
653 | ||
654 | kaweth->status |= KAWETH_STATUS_CLOSING; | |
655 | ||
656 | kaweth_kill_urbs(kaweth); | |
1da177e4 LT |
657 | |
658 | kaweth->status &= ~KAWETH_STATUS_CLOSING; | |
659 | ||
ceb0c77e | 660 | usb_autopm_put_interface(kaweth->intf); |
b98b98f9 | 661 | |
1da177e4 LT |
662 | return 0; |
663 | } | |
664 | ||
b3ebd522 ON |
665 | static u32 kaweth_get_link(struct net_device *dev) |
666 | { | |
667 | struct kaweth_device *kaweth = netdev_priv(dev); | |
668 | ||
669 | return kaweth->linkstate; | |
1da177e4 LT |
670 | } |
671 | ||
0fc0b732 | 672 | static const struct ethtool_ops ops = { |
b3ebd522 | 673 | .get_link = kaweth_get_link |
1da177e4 LT |
674 | }; |
675 | ||
676 | /**************************************************************** | |
677 | * kaweth_usb_transmit_complete | |
678 | ****************************************************************/ | |
7d12e780 | 679 | static void kaweth_usb_transmit_complete(struct urb *urb) |
1da177e4 LT |
680 | { |
681 | struct kaweth_device *kaweth = urb->context; | |
682 | struct sk_buff *skb = kaweth->tx_skb; | |
c94cb314 | 683 | int status = urb->status; |
1da177e4 | 684 | |
c94cb314 ON |
685 | if (unlikely(status != 0)) |
686 | if (status != -ENOENT) | |
49ae25b0 GKH |
687 | dev_dbg(&urb->dev->dev, "%s: TX status %d.\n", |
688 | kaweth->net->name, status); | |
1da177e4 LT |
689 | |
690 | netif_wake_queue(kaweth->net); | |
691 | dev_kfree_skb_irq(skb); | |
692 | } | |
693 | ||
694 | /**************************************************************** | |
695 | * kaweth_start_xmit | |
696 | ****************************************************************/ | |
25a79c41 SH |
697 | static netdev_tx_t kaweth_start_xmit(struct sk_buff *skb, |
698 | struct net_device *net) | |
1da177e4 LT |
699 | { |
700 | struct kaweth_device *kaweth = netdev_priv(net); | |
701 | __le16 *private_header; | |
702 | ||
703 | int res; | |
704 | ||
4ff61c8f | 705 | spin_lock_irq(&kaweth->device_lock); |
1da177e4 | 706 | |
a19c2619 | 707 | kaweth_async_set_rx_mode(kaweth, false); |
1da177e4 | 708 | netif_stop_queue(net); |
1a2ea1df ON |
709 | if (IS_BLOCKED(kaweth->status)) { |
710 | goto skip; | |
711 | } | |
1da177e4 LT |
712 | |
713 | /* We now decide whether we can put our special header into the sk_buff */ | |
39fba783 | 714 | if (skb_cow_head(skb, 2)) { |
fb796707 | 715 | net->stats.tx_errors++; |
39fba783 ED |
716 | netif_start_queue(net); |
717 | spin_unlock_irq(&kaweth->device_lock); | |
718 | dev_kfree_skb_any(skb); | |
719 | return NETDEV_TX_OK; | |
1da177e4 LT |
720 | } |
721 | ||
d58ff351 | 722 | private_header = __skb_push(skb, 2); |
1da177e4 LT |
723 | *private_header = cpu_to_le16(skb->len-2); |
724 | kaweth->tx_skb = skb; | |
725 | ||
726 | usb_fill_bulk_urb(kaweth->tx_urb, | |
727 | kaweth->dev, | |
728 | usb_sndbulkpipe(kaweth->dev, 2), | |
729 | private_header, | |
730 | skb->len, | |
731 | kaweth_usb_transmit_complete, | |
732 | kaweth); | |
733 | kaweth->end = 0; | |
1da177e4 LT |
734 | |
735 | if((res = usb_submit_urb(kaweth->tx_urb, GFP_ATOMIC))) | |
736 | { | |
4dc89948 | 737 | dev_warn(&net->dev, "kaweth failed tx_urb %d\n", res); |
1a2ea1df | 738 | skip: |
6ffa770e | 739 | net->stats.tx_errors++; |
1da177e4 LT |
740 | |
741 | netif_start_queue(net); | |
742 | dev_kfree_skb_irq(skb); | |
743 | } | |
744 | else | |
745 | { | |
6ffa770e TK |
746 | net->stats.tx_packets++; |
747 | net->stats.tx_bytes += skb->len; | |
1da177e4 LT |
748 | } |
749 | ||
4ff61c8f | 750 | spin_unlock_irq(&kaweth->device_lock); |
1da177e4 | 751 | |
6ed10654 | 752 | return NETDEV_TX_OK; |
1da177e4 LT |
753 | } |
754 | ||
755 | /**************************************************************** | |
756 | * kaweth_set_rx_mode | |
757 | ****************************************************************/ | |
758 | static void kaweth_set_rx_mode(struct net_device *net) | |
759 | { | |
760 | struct kaweth_device *kaweth = netdev_priv(net); | |
761 | ||
762 | __u16 packet_filter_bitmap = KAWETH_PACKET_FILTER_DIRECTED | | |
763 | KAWETH_PACKET_FILTER_BROADCAST | | |
764 | KAWETH_PACKET_FILTER_MULTICAST; | |
765 | ||
49ae25b0 | 766 | netdev_dbg(net, "Setting Rx mode to %d\n", packet_filter_bitmap); |
1da177e4 LT |
767 | |
768 | netif_stop_queue(net); | |
769 | ||
770 | if (net->flags & IFF_PROMISC) { | |
771 | packet_filter_bitmap |= KAWETH_PACKET_FILTER_PROMISCUOUS; | |
772 | } | |
4cd24eaf | 773 | else if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI)) { |
1da177e4 LT |
774 | packet_filter_bitmap |= KAWETH_PACKET_FILTER_ALL_MULTICAST; |
775 | } | |
776 | ||
777 | kaweth->packet_filter_bitmap = packet_filter_bitmap; | |
778 | netif_wake_queue(net); | |
779 | } | |
780 | ||
781 | /**************************************************************** | |
782 | * kaweth_async_set_rx_mode | |
783 | ****************************************************************/ | |
a19c2619 SAS |
784 | static void kaweth_async_set_rx_mode(struct kaweth_device *kaweth, |
785 | bool may_sleep) | |
1da177e4 | 786 | { |
a19c2619 | 787 | int ret; |
1da177e4 | 788 | __u16 packet_filter_bitmap = kaweth->packet_filter_bitmap; |
710b523a | 789 | |
1da177e4 LT |
790 | kaweth->packet_filter_bitmap = 0; |
791 | if (packet_filter_bitmap == 0) | |
792 | return; | |
793 | ||
a19c2619 | 794 | if (!may_sleep) |
710b523a LF |
795 | return; |
796 | ||
a19c2619 SAS |
797 | ret = usb_control_msg(kaweth->dev, usb_sndctrlpipe(kaweth->dev, 0), |
798 | KAWETH_COMMAND_SET_PACKET_FILTER, | |
799 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
800 | packet_filter_bitmap, 0, | |
801 | &kaweth->scratch, 0, | |
802 | KAWETH_CONTROL_TIMEOUT); | |
803 | if (ret < 0) | |
db6b2219 | 804 | dev_err(&kaweth->intf->dev, "Failed to set Rx mode: %d\n", |
a19c2619 SAS |
805 | ret); |
806 | else | |
49ae25b0 GKH |
807 | netdev_dbg(kaweth->net, "Set Rx mode to %d\n", |
808 | packet_filter_bitmap); | |
1da177e4 LT |
809 | } |
810 | ||
1da177e4 LT |
811 | /**************************************************************** |
812 | * kaweth_tx_timeout | |
813 | ****************************************************************/ | |
0290bd29 | 814 | static void kaweth_tx_timeout(struct net_device *net, unsigned int txqueue) |
1da177e4 LT |
815 | { |
816 | struct kaweth_device *kaweth = netdev_priv(net); | |
817 | ||
4dc89948 | 818 | dev_warn(&net->dev, "%s: Tx timed out. Resetting.\n", net->name); |
6ffa770e | 819 | net->stats.tx_errors++; |
860e9538 | 820 | netif_trans_update(net); |
1da177e4 LT |
821 | |
822 | usb_unlink_urb(kaweth->tx_urb); | |
823 | } | |
824 | ||
1a2ea1df ON |
825 | /**************************************************************** |
826 | * kaweth_suspend | |
827 | ****************************************************************/ | |
828 | static int kaweth_suspend(struct usb_interface *intf, pm_message_t message) | |
829 | { | |
830 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
831 | unsigned long flags; | |
832 | ||
833 | spin_lock_irqsave(&kaweth->device_lock, flags); | |
834 | kaweth->status |= KAWETH_STATUS_SUSPENDING; | |
835 | spin_unlock_irqrestore(&kaweth->device_lock, flags); | |
836 | ||
837 | kaweth_kill_urbs(kaweth); | |
838 | return 0; | |
839 | } | |
840 | ||
841 | /**************************************************************** | |
842 | * kaweth_resume | |
843 | ****************************************************************/ | |
844 | static int kaweth_resume(struct usb_interface *intf) | |
845 | { | |
846 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
847 | unsigned long flags; | |
848 | ||
849 | spin_lock_irqsave(&kaweth->device_lock, flags); | |
850 | kaweth->status &= ~KAWETH_STATUS_SUSPENDING; | |
851 | spin_unlock_irqrestore(&kaweth->device_lock, flags); | |
852 | ||
853 | if (!kaweth->opened) | |
854 | return 0; | |
855 | kaweth_resubmit_rx_urb(kaweth, GFP_NOIO); | |
856 | kaweth_resubmit_int_urb(kaweth, GFP_NOIO); | |
857 | ||
858 | return 0; | |
859 | } | |
860 | ||
1da177e4 LT |
861 | /**************************************************************** |
862 | * kaweth_probe | |
863 | ****************************************************************/ | |
321ea8b2 ON |
864 | |
865 | ||
866 | static const struct net_device_ops kaweth_netdev_ops = { | |
867 | .ndo_open = kaweth_open, | |
868 | .ndo_stop = kaweth_close, | |
869 | .ndo_start_xmit = kaweth_start_xmit, | |
870 | .ndo_tx_timeout = kaweth_tx_timeout, | |
afc4b13d | 871 | .ndo_set_rx_mode = kaweth_set_rx_mode, |
240c102d BH |
872 | .ndo_set_mac_address = eth_mac_addr, |
873 | .ndo_validate_addr = eth_validate_addr, | |
321ea8b2 ON |
874 | }; |
875 | ||
1da177e4 LT |
876 | static int kaweth_probe( |
877 | struct usb_interface *intf, | |
878 | const struct usb_device_id *id /* from id_table */ | |
879 | ) | |
880 | { | |
49ae25b0 GKH |
881 | struct device *dev = &intf->dev; |
882 | struct usb_device *udev = interface_to_usbdev(intf); | |
1da177e4 LT |
883 | struct kaweth_device *kaweth; |
884 | struct net_device *netdev; | |
885 | const eth_addr_t bcast_addr = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; | |
886 | int result = 0; | |
575ced7f | 887 | int rv = -EIO; |
1da177e4 | 888 | |
49ae25b0 GKH |
889 | dev_dbg(dev, |
890 | "Kawasaki Device Probe (Device number:%d): 0x%4.4x:0x%4.4x:0x%4.4x\n", | |
891 | udev->devnum, le16_to_cpu(udev->descriptor.idVendor), | |
892 | le16_to_cpu(udev->descriptor.idProduct), | |
893 | le16_to_cpu(udev->descriptor.bcdDevice)); | |
1da177e4 | 894 | |
49ae25b0 | 895 | dev_dbg(dev, "Device at %p\n", udev); |
1da177e4 | 896 | |
49ae25b0 GKH |
897 | dev_dbg(dev, "Descriptor length: %x type: %x\n", |
898 | (int)udev->descriptor.bLength, | |
899 | (int)udev->descriptor.bDescriptorType); | |
1da177e4 LT |
900 | |
901 | netdev = alloc_etherdev(sizeof(*kaweth)); | |
902 | if (!netdev) | |
903 | return -ENOMEM; | |
904 | ||
905 | kaweth = netdev_priv(netdev); | |
49ae25b0 | 906 | kaweth->dev = udev; |
1da177e4 | 907 | kaweth->net = netdev; |
60bcabd0 | 908 | kaweth->intf = intf; |
1da177e4 LT |
909 | |
910 | spin_lock_init(&kaweth->device_lock); | |
911 | init_waitqueue_head(&kaweth->term_wait); | |
912 | ||
49ae25b0 | 913 | dev_dbg(dev, "Resetting.\n"); |
1da177e4 LT |
914 | |
915 | kaweth_reset(kaweth); | |
916 | ||
917 | /* | |
918 | * If high byte of bcdDevice is nonzero, firmware is already | |
919 | * downloaded. Don't try to do it again, or we'll hang the device. | |
920 | */ | |
921 | ||
49ae25b0 GKH |
922 | if (le16_to_cpu(udev->descriptor.bcdDevice) >> 8) { |
923 | dev_info(dev, "Firmware present in device.\n"); | |
1da177e4 LT |
924 | } else { |
925 | /* Download the firmware */ | |
49ae25b0 | 926 | dev_info(dev, "Downloading firmware...\n"); |
1da177e4 | 927 | kaweth->firmware_buf = (__u8 *)__get_free_page(GFP_KERNEL); |
575ced7f ON |
928 | if (!kaweth->firmware_buf) { |
929 | rv = -ENOMEM; | |
930 | goto err_free_netdev; | |
931 | } | |
1da177e4 | 932 | if ((result = kaweth_download_firmware(kaweth, |
79682499 | 933 | "kaweth/new_code.bin", |
1da177e4 LT |
934 | 100, |
935 | 2)) < 0) { | |
49ae25b0 | 936 | dev_err(dev, "Error downloading firmware (%d)\n", |
db6b2219 | 937 | result); |
1da177e4 LT |
938 | goto err_fw; |
939 | } | |
940 | ||
941 | if ((result = kaweth_download_firmware(kaweth, | |
79682499 | 942 | "kaweth/new_code_fix.bin", |
1da177e4 LT |
943 | 100, |
944 | 3)) < 0) { | |
49ae25b0 | 945 | dev_err(dev, "Error downloading firmware fix (%d)\n", |
db6b2219 | 946 | result); |
1da177e4 LT |
947 | goto err_fw; |
948 | } | |
949 | ||
950 | if ((result = kaweth_download_firmware(kaweth, | |
79682499 | 951 | "kaweth/trigger_code.bin", |
1da177e4 LT |
952 | 126, |
953 | 2)) < 0) { | |
49ae25b0 | 954 | dev_err(dev, "Error downloading trigger code (%d)\n", |
db6b2219 | 955 | result); |
1da177e4 LT |
956 | goto err_fw; |
957 | ||
958 | } | |
959 | ||
960 | if ((result = kaweth_download_firmware(kaweth, | |
79682499 | 961 | "kaweth/trigger_code_fix.bin", |
1da177e4 LT |
962 | 126, |
963 | 3)) < 0) { | |
49ae25b0 | 964 | dev_err(dev, "Error downloading trigger code fix (%d)\n", result); |
1da177e4 LT |
965 | goto err_fw; |
966 | } | |
967 | ||
968 | ||
969 | if ((result = kaweth_trigger_firmware(kaweth, 126)) < 0) { | |
49ae25b0 | 970 | dev_err(dev, "Error triggering firmware (%d)\n", result); |
1da177e4 LT |
971 | goto err_fw; |
972 | } | |
973 | ||
974 | /* Device will now disappear for a moment... */ | |
49ae25b0 | 975 | dev_info(dev, "Firmware loaded. I'll be back...\n"); |
1da177e4 LT |
976 | err_fw: |
977 | free_page((unsigned long)kaweth->firmware_buf); | |
978 | free_netdev(netdev); | |
979 | return -EIO; | |
980 | } | |
981 | ||
982 | result = kaweth_read_configuration(kaweth); | |
983 | ||
984 | if(result < 0) { | |
49ae25b0 | 985 | dev_err(dev, "Error reading configuration (%d), no net device created\n", result); |
1da177e4 LT |
986 | goto err_free_netdev; |
987 | } | |
988 | ||
49ae25b0 GKH |
989 | dev_info(dev, "Statistics collection: %x\n", kaweth->configuration.statistics_mask); |
990 | dev_info(dev, "Multicast filter limit: %x\n", kaweth->configuration.max_multicast_filters & ((1 << 15) - 1)); | |
991 | dev_info(dev, "MTU: %d\n", le16_to_cpu(kaweth->configuration.segment_size)); | |
992 | dev_info(dev, "Read MAC address %pM\n", kaweth->configuration.hw_addr); | |
1da177e4 LT |
993 | |
994 | if(!memcmp(&kaweth->configuration.hw_addr, | |
995 | &bcast_addr, | |
996 | sizeof(bcast_addr))) { | |
49ae25b0 | 997 | dev_err(dev, "Firmware not functioning properly, no net device created\n"); |
1da177e4 LT |
998 | goto err_free_netdev; |
999 | } | |
1000 | ||
1001 | if(kaweth_set_urb_size(kaweth, KAWETH_BUF_SIZE) < 0) { | |
49ae25b0 | 1002 | dev_dbg(dev, "Error setting URB size\n"); |
1da177e4 LT |
1003 | goto err_free_netdev; |
1004 | } | |
1005 | ||
1006 | if(kaweth_set_sofs_wait(kaweth, KAWETH_SOFS_TO_WAIT) < 0) { | |
49ae25b0 | 1007 | dev_err(dev, "Error setting SOFS wait\n"); |
1da177e4 LT |
1008 | goto err_free_netdev; |
1009 | } | |
1010 | ||
1011 | result = kaweth_set_receive_filter(kaweth, | |
1012 | KAWETH_PACKET_FILTER_DIRECTED | | |
1013 | KAWETH_PACKET_FILTER_BROADCAST | | |
1014 | KAWETH_PACKET_FILTER_MULTICAST); | |
1015 | ||
1016 | if(result < 0) { | |
49ae25b0 | 1017 | dev_err(dev, "Error setting receive filter\n"); |
1da177e4 LT |
1018 | goto err_free_netdev; |
1019 | } | |
1020 | ||
49ae25b0 | 1021 | dev_dbg(dev, "Initializing net device.\n"); |
1da177e4 LT |
1022 | |
1023 | kaweth->tx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1024 | if (!kaweth->tx_urb) | |
1025 | goto err_free_netdev; | |
1026 | kaweth->rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1027 | if (!kaweth->rx_urb) | |
1028 | goto err_only_tx; | |
1029 | kaweth->irq_urb = usb_alloc_urb(0, GFP_KERNEL); | |
1030 | if (!kaweth->irq_urb) | |
1031 | goto err_tx_and_rx; | |
1032 | ||
997ea58e | 1033 | kaweth->intbuffer = usb_alloc_coherent( kaweth->dev, |
1da177e4 LT |
1034 | INTBUFFERSIZE, |
1035 | GFP_KERNEL, | |
1036 | &kaweth->intbufferhandle); | |
1037 | if (!kaweth->intbuffer) | |
1038 | goto err_tx_and_rx_and_irq; | |
997ea58e | 1039 | kaweth->rx_buf = usb_alloc_coherent( kaweth->dev, |
1da177e4 LT |
1040 | KAWETH_BUF_SIZE, |
1041 | GFP_KERNEL, | |
1042 | &kaweth->rxbufferhandle); | |
1043 | if (!kaweth->rx_buf) | |
1044 | goto err_all_but_rxbuf; | |
1045 | ||
1046 | memcpy(netdev->broadcast, &bcast_addr, sizeof(bcast_addr)); | |
1047 | memcpy(netdev->dev_addr, &kaweth->configuration.hw_addr, | |
1048 | sizeof(kaweth->configuration.hw_addr)); | |
1049 | ||
321ea8b2 | 1050 | netdev->netdev_ops = &kaweth_netdev_ops; |
1da177e4 | 1051 | netdev->watchdog_timeo = KAWETH_TX_TIMEOUT; |
1da177e4 | 1052 | netdev->mtu = le16_to_cpu(kaweth->configuration.segment_size); |
7ad24ea4 | 1053 | netdev->ethtool_ops = &ops; |
1da177e4 LT |
1054 | |
1055 | /* kaweth is zeroed as part of alloc_netdev */ | |
c4028958 | 1056 | INIT_DELAYED_WORK(&kaweth->lowmem_work, kaweth_resubmit_tl); |
1da177e4 LT |
1057 | usb_set_intfdata(intf, kaweth); |
1058 | ||
49ae25b0 | 1059 | SET_NETDEV_DEV(netdev, dev); |
1da177e4 | 1060 | if (register_netdev(netdev) != 0) { |
49ae25b0 | 1061 | dev_err(dev, "Error registering netdev.\n"); |
1da177e4 LT |
1062 | goto err_intfdata; |
1063 | } | |
1064 | ||
49ae25b0 | 1065 | dev_info(dev, "kaweth interface created at %s\n", |
880c9c66 | 1066 | kaweth->net->name); |
1da177e4 | 1067 | |
1da177e4 LT |
1068 | return 0; |
1069 | ||
1070 | err_intfdata: | |
1071 | usb_set_intfdata(intf, NULL); | |
997ea58e | 1072 | usb_free_coherent(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); |
1da177e4 | 1073 | err_all_but_rxbuf: |
997ea58e | 1074 | usb_free_coherent(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); |
1da177e4 LT |
1075 | err_tx_and_rx_and_irq: |
1076 | usb_free_urb(kaweth->irq_urb); | |
1077 | err_tx_and_rx: | |
1078 | usb_free_urb(kaweth->rx_urb); | |
1079 | err_only_tx: | |
1080 | usb_free_urb(kaweth->tx_urb); | |
1081 | err_free_netdev: | |
1082 | free_netdev(netdev); | |
1083 | ||
575ced7f | 1084 | return rv; |
1da177e4 LT |
1085 | } |
1086 | ||
1087 | /**************************************************************** | |
1088 | * kaweth_disconnect | |
1089 | ****************************************************************/ | |
1090 | static void kaweth_disconnect(struct usb_interface *intf) | |
1091 | { | |
1092 | struct kaweth_device *kaweth = usb_get_intfdata(intf); | |
1093 | struct net_device *netdev; | |
1094 | ||
1da177e4 LT |
1095 | usb_set_intfdata(intf, NULL); |
1096 | if (!kaweth) { | |
25985edc | 1097 | dev_warn(&intf->dev, "unregistering non-existent device\n"); |
1da177e4 LT |
1098 | return; |
1099 | } | |
1100 | netdev = kaweth->net; | |
1da177e4 | 1101 | |
49ae25b0 | 1102 | netdev_dbg(kaweth->net, "Unregistering net device\n"); |
1da177e4 LT |
1103 | unregister_netdev(netdev); |
1104 | ||
1105 | usb_free_urb(kaweth->rx_urb); | |
1106 | usb_free_urb(kaweth->tx_urb); | |
1107 | usb_free_urb(kaweth->irq_urb); | |
1108 | ||
997ea58e DM |
1109 | usb_free_coherent(kaweth->dev, KAWETH_BUF_SIZE, (void *)kaweth->rx_buf, kaweth->rxbufferhandle); |
1110 | usb_free_coherent(kaweth->dev, INTBUFFERSIZE, (void *)kaweth->intbuffer, kaweth->intbufferhandle); | |
1da177e4 LT |
1111 | |
1112 | free_netdev(netdev); | |
1113 | } | |
1114 | ||
1115 | ||
d632eb1b | 1116 | module_usb_driver(kaweth_driver); |