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1da177e4 LT |
1 | /* |
2 | * Copyright (c) 2001 Vojtech Pavlik | |
3 | * | |
4 | * CATC EL1210A NetMate USB Ethernet driver | |
5 | * | |
6 | * Sponsored by SuSE | |
7 | * | |
8 | * Based on the work of | |
9 | * Donald Becker | |
10 | * | |
11 | * Old chipset support added by Simon Evans <spse@secret.org.uk> 2002 | |
12 | * - adds support for Belkin F5U011 | |
13 | */ | |
14 | ||
15 | /* | |
16 | * This program is free software; you can redistribute it and/or modify | |
17 | * it under the terms of the GNU General Public License as published by | |
18 | * the Free Software Foundation; either version 2 of the License, or | |
19 | * (at your option) any later version. | |
20 | * | |
21 | * This program is distributed in the hope that it will be useful, | |
22 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
24 | * GNU General Public License for more details. | |
25 | * | |
26 | * You should have received a copy of the GNU General Public License | |
27 | * along with this program; if not, write to the Free Software | |
28 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
29 | * | |
30 | * Should you need to contact me, the author, you can do so either by | |
31 | * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail: | |
32 | * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic | |
33 | */ | |
34 | ||
35 | #include <linux/init.h> | |
36 | #include <linux/module.h> | |
37 | #include <linux/kernel.h> | |
38 | #include <linux/string.h> | |
1da177e4 LT |
39 | #include <linux/netdevice.h> |
40 | #include <linux/etherdevice.h> | |
41 | #include <linux/skbuff.h> | |
42 | #include <linux/spinlock.h> | |
43 | #include <linux/ethtool.h> | |
44 | #include <linux/crc32.h> | |
45 | #include <linux/bitops.h> | |
5a0e3ad6 | 46 | #include <linux/gfp.h> |
1da177e4 LT |
47 | #include <asm/uaccess.h> |
48 | ||
49 | #undef DEBUG | |
50 | ||
51 | #include <linux/usb.h> | |
52 | ||
53 | /* | |
54 | * Version information. | |
55 | */ | |
56 | ||
57 | #define DRIVER_VERSION "v2.8" | |
58 | #define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@suse.cz>" | |
59 | #define DRIVER_DESC "CATC EL1210A NetMate USB Ethernet driver" | |
60 | #define SHORT_DRIVER_DESC "EL1210A NetMate USB Ethernet" | |
61 | ||
62 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
63 | MODULE_DESCRIPTION(DRIVER_DESC); | |
64 | MODULE_LICENSE("GPL"); | |
65 | ||
66 | static const char driver_name[] = "catc"; | |
67 | ||
68 | /* | |
69 | * Some defines. | |
70 | */ | |
71 | ||
72 | #define STATS_UPDATE (HZ) /* Time between stats updates */ | |
73 | #define TX_TIMEOUT (5*HZ) /* Max time the queue can be stopped */ | |
74 | #define PKT_SZ 1536 /* Max Ethernet packet size */ | |
75 | #define RX_MAX_BURST 15 /* Max packets per rx buffer (> 0, < 16) */ | |
76 | #define TX_MAX_BURST 15 /* Max full sized packets per tx buffer (> 0) */ | |
77 | #define CTRL_QUEUE 16 /* Max control requests in flight (power of two) */ | |
78 | #define RX_PKT_SZ 1600 /* Max size of receive packet for F5U011 */ | |
79 | ||
80 | /* | |
81 | * Control requests. | |
82 | */ | |
83 | ||
84 | enum control_requests { | |
85 | ReadMem = 0xf1, | |
86 | GetMac = 0xf2, | |
87 | Reset = 0xf4, | |
88 | SetMac = 0xf5, | |
89 | SetRxMode = 0xf5, /* F5U011 only */ | |
90 | WriteROM = 0xf8, | |
91 | SetReg = 0xfa, | |
92 | GetReg = 0xfb, | |
93 | WriteMem = 0xfc, | |
94 | ReadROM = 0xfd, | |
95 | }; | |
96 | ||
97 | /* | |
98 | * Registers. | |
99 | */ | |
100 | ||
101 | enum register_offsets { | |
102 | TxBufCount = 0x20, | |
103 | RxBufCount = 0x21, | |
104 | OpModes = 0x22, | |
105 | TxQed = 0x23, | |
106 | RxQed = 0x24, | |
107 | MaxBurst = 0x25, | |
108 | RxUnit = 0x60, | |
109 | EthStatus = 0x61, | |
110 | StationAddr0 = 0x67, | |
111 | EthStats = 0x69, | |
112 | LEDCtrl = 0x81, | |
113 | }; | |
114 | ||
115 | enum eth_stats { | |
116 | TxSingleColl = 0x00, | |
117 | TxMultiColl = 0x02, | |
118 | TxExcessColl = 0x04, | |
119 | RxFramErr = 0x06, | |
120 | }; | |
121 | ||
122 | enum op_mode_bits { | |
123 | Op3MemWaits = 0x03, | |
124 | OpLenInclude = 0x08, | |
125 | OpRxMerge = 0x10, | |
126 | OpTxMerge = 0x20, | |
127 | OpWin95bugfix = 0x40, | |
128 | OpLoopback = 0x80, | |
129 | }; | |
130 | ||
131 | enum rx_filter_bits { | |
132 | RxEnable = 0x01, | |
133 | RxPolarity = 0x02, | |
134 | RxForceOK = 0x04, | |
135 | RxMultiCast = 0x08, | |
136 | RxPromisc = 0x10, | |
137 | AltRxPromisc = 0x20, /* F5U011 uses different bit */ | |
138 | }; | |
139 | ||
140 | enum led_values { | |
141 | LEDFast = 0x01, | |
142 | LEDSlow = 0x02, | |
143 | LEDFlash = 0x03, | |
144 | LEDPulse = 0x04, | |
145 | LEDLink = 0x08, | |
146 | }; | |
147 | ||
148 | enum link_status { | |
149 | LinkNoChange = 0, | |
150 | LinkGood = 1, | |
151 | LinkBad = 2 | |
152 | }; | |
153 | ||
154 | /* | |
155 | * The catc struct. | |
156 | */ | |
157 | ||
158 | #define CTRL_RUNNING 0 | |
159 | #define RX_RUNNING 1 | |
160 | #define TX_RUNNING 2 | |
161 | ||
162 | struct catc { | |
163 | struct net_device *netdev; | |
164 | struct usb_device *usbdev; | |
165 | ||
1da177e4 LT |
166 | unsigned long flags; |
167 | ||
168 | unsigned int tx_ptr, tx_idx; | |
169 | unsigned int ctrl_head, ctrl_tail; | |
170 | spinlock_t tx_lock, ctrl_lock; | |
171 | ||
172 | u8 tx_buf[2][TX_MAX_BURST * (PKT_SZ + 2)]; | |
173 | u8 rx_buf[RX_MAX_BURST * (PKT_SZ + 2)]; | |
174 | u8 irq_buf[2]; | |
175 | u8 ctrl_buf[64]; | |
176 | struct usb_ctrlrequest ctrl_dr; | |
177 | ||
178 | struct timer_list timer; | |
179 | u8 stats_buf[8]; | |
180 | u16 stats_vals[4]; | |
181 | unsigned long last_stats; | |
182 | ||
183 | u8 multicast[64]; | |
184 | ||
185 | struct ctrl_queue { | |
186 | u8 dir; | |
187 | u8 request; | |
188 | u16 value; | |
189 | u16 index; | |
190 | void *buf; | |
191 | int len; | |
192 | void (*callback)(struct catc *catc, struct ctrl_queue *q); | |
193 | } ctrl_queue[CTRL_QUEUE]; | |
194 | ||
195 | struct urb *tx_urb, *rx_urb, *irq_urb, *ctrl_urb; | |
196 | ||
197 | u8 is_f5u011; /* Set if device is an F5U011 */ | |
198 | u8 rxmode[2]; /* Used for F5U011 */ | |
199 | atomic_t recq_sz; /* Used for F5U011 - counter of waiting rx packets */ | |
200 | }; | |
201 | ||
202 | /* | |
203 | * Useful macros. | |
204 | */ | |
205 | ||
206 | #define catc_get_mac(catc, mac) catc_ctrl_msg(catc, USB_DIR_IN, GetMac, 0, 0, mac, 6) | |
207 | #define catc_reset(catc) catc_ctrl_msg(catc, USB_DIR_OUT, Reset, 0, 0, NULL, 0) | |
208 | #define catc_set_reg(catc, reg, val) catc_ctrl_msg(catc, USB_DIR_OUT, SetReg, val, reg, NULL, 0) | |
209 | #define catc_get_reg(catc, reg, buf) catc_ctrl_msg(catc, USB_DIR_IN, GetReg, 0, reg, buf, 1) | |
210 | #define catc_write_mem(catc, addr, buf, size) catc_ctrl_msg(catc, USB_DIR_OUT, WriteMem, 0, addr, buf, size) | |
211 | #define catc_read_mem(catc, addr, buf, size) catc_ctrl_msg(catc, USB_DIR_IN, ReadMem, 0, addr, buf, size) | |
212 | ||
213 | #define f5u011_rxmode(catc, rxmode) catc_ctrl_msg(catc, USB_DIR_OUT, SetRxMode, 0, 1, rxmode, 2) | |
214 | #define f5u011_rxmode_async(catc, rxmode) catc_ctrl_async(catc, USB_DIR_OUT, SetRxMode, 0, 1, &rxmode, 2, NULL) | |
215 | #define f5u011_mchash_async(catc, hash) catc_ctrl_async(catc, USB_DIR_OUT, SetRxMode, 0, 2, &hash, 8, NULL) | |
216 | ||
217 | #define catc_set_reg_async(catc, reg, val) catc_ctrl_async(catc, USB_DIR_OUT, SetReg, val, reg, NULL, 0, NULL) | |
218 | #define catc_get_reg_async(catc, reg, cb) catc_ctrl_async(catc, USB_DIR_IN, GetReg, 0, reg, NULL, 1, cb) | |
219 | #define catc_write_mem_async(catc, addr, buf, size) catc_ctrl_async(catc, USB_DIR_OUT, WriteMem, 0, addr, buf, size, NULL) | |
220 | ||
221 | /* | |
222 | * Receive routines. | |
223 | */ | |
224 | ||
7d12e780 | 225 | static void catc_rx_done(struct urb *urb) |
1da177e4 LT |
226 | { |
227 | struct catc *catc = urb->context; | |
228 | u8 *pkt_start = urb->transfer_buffer; | |
229 | struct sk_buff *skb; | |
230 | int pkt_len, pkt_offset = 0; | |
c94cb314 | 231 | int status = urb->status; |
1da177e4 LT |
232 | |
233 | if (!catc->is_f5u011) { | |
234 | clear_bit(RX_RUNNING, &catc->flags); | |
235 | pkt_offset = 2; | |
236 | } | |
237 | ||
c94cb314 ON |
238 | if (status) { |
239 | dbg("rx_done, status %d, length %d", status, urb->actual_length); | |
1da177e4 LT |
240 | return; |
241 | } | |
242 | ||
243 | do { | |
244 | if(!catc->is_f5u011) { | |
245 | pkt_len = le16_to_cpup((__le16*)pkt_start); | |
246 | if (pkt_len > urb->actual_length) { | |
edc4ae08 SH |
247 | catc->netdev->stats.rx_length_errors++; |
248 | catc->netdev->stats.rx_errors++; | |
1da177e4 LT |
249 | break; |
250 | } | |
251 | } else { | |
252 | pkt_len = urb->actual_length; | |
253 | } | |
254 | ||
255 | if (!(skb = dev_alloc_skb(pkt_len))) | |
256 | return; | |
257 | ||
8c7b7faa | 258 | skb_copy_to_linear_data(skb, pkt_start + pkt_offset, pkt_len); |
1da177e4 LT |
259 | skb_put(skb, pkt_len); |
260 | ||
261 | skb->protocol = eth_type_trans(skb, catc->netdev); | |
262 | netif_rx(skb); | |
263 | ||
edc4ae08 SH |
264 | catc->netdev->stats.rx_packets++; |
265 | catc->netdev->stats.rx_bytes += pkt_len; | |
1da177e4 LT |
266 | |
267 | /* F5U011 only does one packet per RX */ | |
268 | if (catc->is_f5u011) | |
269 | break; | |
270 | pkt_start += (((pkt_len + 1) >> 6) + 1) << 6; | |
271 | ||
272 | } while (pkt_start - (u8 *) urb->transfer_buffer < urb->actual_length); | |
273 | ||
1da177e4 LT |
274 | if (catc->is_f5u011) { |
275 | if (atomic_read(&catc->recq_sz)) { | |
c94cb314 | 276 | int state; |
1da177e4 LT |
277 | atomic_dec(&catc->recq_sz); |
278 | dbg("getting extra packet"); | |
279 | urb->dev = catc->usbdev; | |
c94cb314 ON |
280 | if ((state = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { |
281 | dbg("submit(rx_urb) status %d", state); | |
1da177e4 LT |
282 | } |
283 | } else { | |
284 | clear_bit(RX_RUNNING, &catc->flags); | |
285 | } | |
286 | } | |
287 | } | |
288 | ||
7d12e780 | 289 | static void catc_irq_done(struct urb *urb) |
1da177e4 LT |
290 | { |
291 | struct catc *catc = urb->context; | |
292 | u8 *data = urb->transfer_buffer; | |
c94cb314 | 293 | int status = urb->status; |
1da177e4 | 294 | unsigned int hasdata = 0, linksts = LinkNoChange; |
c94cb314 | 295 | int res; |
1da177e4 LT |
296 | |
297 | if (!catc->is_f5u011) { | |
298 | hasdata = data[1] & 0x80; | |
299 | if (data[1] & 0x40) | |
300 | linksts = LinkGood; | |
301 | else if (data[1] & 0x20) | |
302 | linksts = LinkBad; | |
303 | } else { | |
304 | hasdata = (unsigned int)(be16_to_cpup((__be16*)data) & 0x0fff); | |
305 | if (data[0] == 0x90) | |
306 | linksts = LinkGood; | |
307 | else if (data[0] == 0xA0) | |
308 | linksts = LinkBad; | |
309 | } | |
310 | ||
c94cb314 | 311 | switch (status) { |
1da177e4 LT |
312 | case 0: /* success */ |
313 | break; | |
314 | case -ECONNRESET: /* unlink */ | |
315 | case -ENOENT: | |
316 | case -ESHUTDOWN: | |
317 | return; | |
318 | /* -EPIPE: should clear the halt */ | |
319 | default: /* error */ | |
c94cb314 | 320 | dbg("irq_done, status %d, data %02x %02x.", status, data[0], data[1]); |
1da177e4 LT |
321 | goto resubmit; |
322 | } | |
323 | ||
324 | if (linksts == LinkGood) { | |
325 | netif_carrier_on(catc->netdev); | |
326 | dbg("link ok"); | |
327 | } | |
328 | ||
329 | if (linksts == LinkBad) { | |
330 | netif_carrier_off(catc->netdev); | |
331 | dbg("link bad"); | |
332 | } | |
333 | ||
334 | if (hasdata) { | |
335 | if (test_and_set_bit(RX_RUNNING, &catc->flags)) { | |
336 | if (catc->is_f5u011) | |
337 | atomic_inc(&catc->recq_sz); | |
338 | } else { | |
339 | catc->rx_urb->dev = catc->usbdev; | |
c94cb314 ON |
340 | if ((res = usb_submit_urb(catc->rx_urb, GFP_ATOMIC)) < 0) { |
341 | err("submit(rx_urb) status %d", res); | |
1da177e4 LT |
342 | } |
343 | } | |
344 | } | |
345 | resubmit: | |
c94cb314 ON |
346 | res = usb_submit_urb (urb, GFP_ATOMIC); |
347 | if (res) | |
1da177e4 LT |
348 | err ("can't resubmit intr, %s-%s, status %d", |
349 | catc->usbdev->bus->bus_name, | |
c94cb314 | 350 | catc->usbdev->devpath, res); |
1da177e4 LT |
351 | } |
352 | ||
353 | /* | |
354 | * Transmit routines. | |
355 | */ | |
356 | ||
5a9f4e33 | 357 | static int catc_tx_run(struct catc *catc) |
1da177e4 LT |
358 | { |
359 | int status; | |
360 | ||
361 | if (catc->is_f5u011) | |
362 | catc->tx_ptr = (catc->tx_ptr + 63) & ~63; | |
363 | ||
364 | catc->tx_urb->transfer_buffer_length = catc->tx_ptr; | |
365 | catc->tx_urb->transfer_buffer = catc->tx_buf[catc->tx_idx]; | |
366 | catc->tx_urb->dev = catc->usbdev; | |
367 | ||
368 | if ((status = usb_submit_urb(catc->tx_urb, GFP_ATOMIC)) < 0) | |
369 | err("submit(tx_urb), status %d", status); | |
370 | ||
371 | catc->tx_idx = !catc->tx_idx; | |
372 | catc->tx_ptr = 0; | |
373 | ||
374 | catc->netdev->trans_start = jiffies; | |
5a9f4e33 | 375 | return status; |
1da177e4 LT |
376 | } |
377 | ||
7d12e780 | 378 | static void catc_tx_done(struct urb *urb) |
1da177e4 LT |
379 | { |
380 | struct catc *catc = urb->context; | |
381 | unsigned long flags; | |
c94cb314 | 382 | int r, status = urb->status; |
1da177e4 | 383 | |
c94cb314 | 384 | if (status == -ECONNRESET) { |
1da177e4 | 385 | dbg("Tx Reset."); |
1da177e4 LT |
386 | urb->status = 0; |
387 | catc->netdev->trans_start = jiffies; | |
edc4ae08 | 388 | catc->netdev->stats.tx_errors++; |
1da177e4 LT |
389 | clear_bit(TX_RUNNING, &catc->flags); |
390 | netif_wake_queue(catc->netdev); | |
391 | return; | |
392 | } | |
393 | ||
c94cb314 ON |
394 | if (status) { |
395 | dbg("tx_done, status %d, length %d", status, urb->actual_length); | |
1da177e4 LT |
396 | return; |
397 | } | |
398 | ||
399 | spin_lock_irqsave(&catc->tx_lock, flags); | |
400 | ||
5a9f4e33 ON |
401 | if (catc->tx_ptr) { |
402 | r = catc_tx_run(catc); | |
403 | if (unlikely(r < 0)) | |
404 | clear_bit(TX_RUNNING, &catc->flags); | |
405 | } else { | |
1da177e4 | 406 | clear_bit(TX_RUNNING, &catc->flags); |
5a9f4e33 | 407 | } |
1da177e4 LT |
408 | |
409 | netif_wake_queue(catc->netdev); | |
410 | ||
411 | spin_unlock_irqrestore(&catc->tx_lock, flags); | |
412 | } | |
413 | ||
25a79c41 SH |
414 | static netdev_tx_t catc_start_xmit(struct sk_buff *skb, |
415 | struct net_device *netdev) | |
1da177e4 LT |
416 | { |
417 | struct catc *catc = netdev_priv(netdev); | |
418 | unsigned long flags; | |
5a9f4e33 | 419 | int r = 0; |
1da177e4 LT |
420 | char *tx_buf; |
421 | ||
422 | spin_lock_irqsave(&catc->tx_lock, flags); | |
423 | ||
424 | catc->tx_ptr = (((catc->tx_ptr - 1) >> 6) + 1) << 6; | |
425 | tx_buf = catc->tx_buf[catc->tx_idx] + catc->tx_ptr; | |
4ec7ffa2 AV |
426 | if (catc->is_f5u011) |
427 | *(__be16 *)tx_buf = cpu_to_be16(skb->len); | |
428 | else | |
429 | *(__le16 *)tx_buf = cpu_to_le16(skb->len); | |
d626f62b | 430 | skb_copy_from_linear_data(skb, tx_buf + 2, skb->len); |
1da177e4 LT |
431 | catc->tx_ptr += skb->len + 2; |
432 | ||
5a9f4e33 ON |
433 | if (!test_and_set_bit(TX_RUNNING, &catc->flags)) { |
434 | r = catc_tx_run(catc); | |
435 | if (r < 0) | |
436 | clear_bit(TX_RUNNING, &catc->flags); | |
437 | } | |
1da177e4 | 438 | |
8e95a202 JP |
439 | if ((catc->is_f5u011 && catc->tx_ptr) || |
440 | (catc->tx_ptr >= ((TX_MAX_BURST - 1) * (PKT_SZ + 2)))) | |
1da177e4 LT |
441 | netif_stop_queue(netdev); |
442 | ||
443 | spin_unlock_irqrestore(&catc->tx_lock, flags); | |
444 | ||
5a9f4e33 | 445 | if (r >= 0) { |
edc4ae08 SH |
446 | catc->netdev->stats.tx_bytes += skb->len; |
447 | catc->netdev->stats.tx_packets++; | |
5a9f4e33 | 448 | } |
1da177e4 LT |
449 | |
450 | dev_kfree_skb(skb); | |
451 | ||
6ed10654 | 452 | return NETDEV_TX_OK; |
1da177e4 LT |
453 | } |
454 | ||
455 | static void catc_tx_timeout(struct net_device *netdev) | |
456 | { | |
457 | struct catc *catc = netdev_priv(netdev); | |
458 | ||
4dc89948 | 459 | dev_warn(&netdev->dev, "Transmit timed out.\n"); |
1da177e4 LT |
460 | usb_unlink_urb(catc->tx_urb); |
461 | } | |
462 | ||
463 | /* | |
464 | * Control messages. | |
465 | */ | |
466 | ||
467 | static int catc_ctrl_msg(struct catc *catc, u8 dir, u8 request, u16 value, u16 index, void *buf, int len) | |
468 | { | |
469 | int retval = usb_control_msg(catc->usbdev, | |
470 | dir ? usb_rcvctrlpipe(catc->usbdev, 0) : usb_sndctrlpipe(catc->usbdev, 0), | |
471 | request, 0x40 | dir, value, index, buf, len, 1000); | |
472 | return retval < 0 ? retval : 0; | |
473 | } | |
474 | ||
475 | static void catc_ctrl_run(struct catc *catc) | |
476 | { | |
477 | struct ctrl_queue *q = catc->ctrl_queue + catc->ctrl_tail; | |
478 | struct usb_device *usbdev = catc->usbdev; | |
479 | struct urb *urb = catc->ctrl_urb; | |
480 | struct usb_ctrlrequest *dr = &catc->ctrl_dr; | |
481 | int status; | |
482 | ||
483 | dr->bRequest = q->request; | |
484 | dr->bRequestType = 0x40 | q->dir; | |
485 | dr->wValue = cpu_to_le16(q->value); | |
486 | dr->wIndex = cpu_to_le16(q->index); | |
487 | dr->wLength = cpu_to_le16(q->len); | |
488 | ||
489 | urb->pipe = q->dir ? usb_rcvctrlpipe(usbdev, 0) : usb_sndctrlpipe(usbdev, 0); | |
490 | urb->transfer_buffer_length = q->len; | |
491 | urb->transfer_buffer = catc->ctrl_buf; | |
492 | urb->setup_packet = (void *) dr; | |
493 | urb->dev = usbdev; | |
494 | ||
495 | if (!q->dir && q->buf && q->len) | |
496 | memcpy(catc->ctrl_buf, q->buf, q->len); | |
497 | ||
930a6eac | 498 | if ((status = usb_submit_urb(catc->ctrl_urb, GFP_ATOMIC))) |
1da177e4 LT |
499 | err("submit(ctrl_urb) status %d", status); |
500 | } | |
501 | ||
7d12e780 | 502 | static void catc_ctrl_done(struct urb *urb) |
1da177e4 LT |
503 | { |
504 | struct catc *catc = urb->context; | |
505 | struct ctrl_queue *q; | |
506 | unsigned long flags; | |
c94cb314 | 507 | int status = urb->status; |
1da177e4 | 508 | |
c94cb314 ON |
509 | if (status) |
510 | dbg("ctrl_done, status %d, len %d.", status, urb->actual_length); | |
1da177e4 LT |
511 | |
512 | spin_lock_irqsave(&catc->ctrl_lock, flags); | |
513 | ||
514 | q = catc->ctrl_queue + catc->ctrl_tail; | |
515 | ||
516 | if (q->dir) { | |
517 | if (q->buf && q->len) | |
518 | memcpy(q->buf, catc->ctrl_buf, q->len); | |
519 | else | |
520 | q->buf = catc->ctrl_buf; | |
521 | } | |
522 | ||
523 | if (q->callback) | |
524 | q->callback(catc, q); | |
525 | ||
526 | catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1); | |
527 | ||
528 | if (catc->ctrl_head != catc->ctrl_tail) | |
529 | catc_ctrl_run(catc); | |
530 | else | |
531 | clear_bit(CTRL_RUNNING, &catc->flags); | |
532 | ||
533 | spin_unlock_irqrestore(&catc->ctrl_lock, flags); | |
534 | } | |
535 | ||
536 | static int catc_ctrl_async(struct catc *catc, u8 dir, u8 request, u16 value, | |
537 | u16 index, void *buf, int len, void (*callback)(struct catc *catc, struct ctrl_queue *q)) | |
538 | { | |
539 | struct ctrl_queue *q; | |
540 | int retval = 0; | |
541 | unsigned long flags; | |
542 | ||
543 | spin_lock_irqsave(&catc->ctrl_lock, flags); | |
544 | ||
545 | q = catc->ctrl_queue + catc->ctrl_head; | |
546 | ||
547 | q->dir = dir; | |
548 | q->request = request; | |
549 | q->value = value; | |
550 | q->index = index; | |
551 | q->buf = buf; | |
552 | q->len = len; | |
553 | q->callback = callback; | |
554 | ||
555 | catc->ctrl_head = (catc->ctrl_head + 1) & (CTRL_QUEUE - 1); | |
556 | ||
557 | if (catc->ctrl_head == catc->ctrl_tail) { | |
558 | err("ctrl queue full"); | |
559 | catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1); | |
560 | retval = -1; | |
561 | } | |
562 | ||
563 | if (!test_and_set_bit(CTRL_RUNNING, &catc->flags)) | |
564 | catc_ctrl_run(catc); | |
565 | ||
566 | spin_unlock_irqrestore(&catc->ctrl_lock, flags); | |
567 | ||
568 | return retval; | |
569 | } | |
570 | ||
571 | /* | |
572 | * Statistics. | |
573 | */ | |
574 | ||
575 | static void catc_stats_done(struct catc *catc, struct ctrl_queue *q) | |
576 | { | |
577 | int index = q->index - EthStats; | |
578 | u16 data, last; | |
579 | ||
580 | catc->stats_buf[index] = *((char *)q->buf); | |
581 | ||
582 | if (index & 1) | |
583 | return; | |
584 | ||
585 | data = ((u16)catc->stats_buf[index] << 8) | catc->stats_buf[index + 1]; | |
586 | last = catc->stats_vals[index >> 1]; | |
587 | ||
588 | switch (index) { | |
589 | case TxSingleColl: | |
590 | case TxMultiColl: | |
edc4ae08 | 591 | catc->netdev->stats.collisions += data - last; |
1da177e4 LT |
592 | break; |
593 | case TxExcessColl: | |
edc4ae08 SH |
594 | catc->netdev->stats.tx_aborted_errors += data - last; |
595 | catc->netdev->stats.tx_errors += data - last; | |
1da177e4 LT |
596 | break; |
597 | case RxFramErr: | |
edc4ae08 SH |
598 | catc->netdev->stats.rx_frame_errors += data - last; |
599 | catc->netdev->stats.rx_errors += data - last; | |
1da177e4 LT |
600 | break; |
601 | } | |
602 | ||
603 | catc->stats_vals[index >> 1] = data; | |
604 | } | |
605 | ||
606 | static void catc_stats_timer(unsigned long data) | |
607 | { | |
608 | struct catc *catc = (void *) data; | |
609 | int i; | |
610 | ||
611 | for (i = 0; i < 8; i++) | |
612 | catc_get_reg_async(catc, EthStats + 7 - i, catc_stats_done); | |
613 | ||
614 | mod_timer(&catc->timer, jiffies + STATS_UPDATE); | |
615 | } | |
616 | ||
1da177e4 LT |
617 | /* |
618 | * Receive modes. Broadcast, Multicast, Promisc. | |
619 | */ | |
620 | ||
621 | static void catc_multicast(unsigned char *addr, u8 *multicast) | |
622 | { | |
623 | u32 crc; | |
624 | ||
625 | crc = ether_crc_le(6, addr); | |
626 | multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7); | |
627 | } | |
628 | ||
629 | static void catc_set_multicast_list(struct net_device *netdev) | |
630 | { | |
631 | struct catc *catc = netdev_priv(netdev); | |
22bedad3 | 632 | struct netdev_hw_addr *ha; |
1da177e4 LT |
633 | u8 broadcast[6]; |
634 | u8 rx = RxEnable | RxPolarity | RxMultiCast; | |
1da177e4 LT |
635 | |
636 | memset(broadcast, 0xff, 6); | |
637 | memset(catc->multicast, 0, 64); | |
638 | ||
639 | catc_multicast(broadcast, catc->multicast); | |
640 | catc_multicast(netdev->dev_addr, catc->multicast); | |
641 | ||
642 | if (netdev->flags & IFF_PROMISC) { | |
643 | memset(catc->multicast, 0xff, 64); | |
644 | rx |= (!catc->is_f5u011) ? RxPromisc : AltRxPromisc; | |
645 | } | |
646 | ||
647 | if (netdev->flags & IFF_ALLMULTI) { | |
648 | memset(catc->multicast, 0xff, 64); | |
649 | } else { | |
22bedad3 JP |
650 | netdev_for_each_mc_addr(ha, netdev) { |
651 | u32 crc = ether_crc_le(6, ha->addr); | |
1da177e4 LT |
652 | if (!catc->is_f5u011) { |
653 | catc->multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7); | |
654 | } else { | |
655 | catc->multicast[7-(crc >> 29)] |= 1 << ((crc >> 26) & 7); | |
656 | } | |
657 | } | |
658 | } | |
659 | if (!catc->is_f5u011) { | |
660 | catc_set_reg_async(catc, RxUnit, rx); | |
661 | catc_write_mem_async(catc, 0xfa80, catc->multicast, 64); | |
662 | } else { | |
663 | f5u011_mchash_async(catc, catc->multicast); | |
664 | if (catc->rxmode[0] != rx) { | |
665 | catc->rxmode[0] = rx; | |
666 | dbg("Setting RX mode to %2.2X %2.2X", catc->rxmode[0], catc->rxmode[1]); | |
667 | f5u011_rxmode_async(catc, catc->rxmode); | |
668 | } | |
669 | } | |
670 | } | |
671 | ||
672 | static void catc_get_drvinfo(struct net_device *dev, | |
673 | struct ethtool_drvinfo *info) | |
674 | { | |
675 | struct catc *catc = netdev_priv(dev); | |
676 | strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN); | |
677 | strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN); | |
678 | usb_make_path (catc->usbdev, info->bus_info, sizeof info->bus_info); | |
679 | } | |
680 | ||
681 | static int catc_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
682 | { | |
683 | struct catc *catc = netdev_priv(dev); | |
684 | if (!catc->is_f5u011) | |
685 | return -EOPNOTSUPP; | |
686 | ||
687 | cmd->supported = SUPPORTED_10baseT_Half | SUPPORTED_TP; | |
688 | cmd->advertising = ADVERTISED_10baseT_Half | ADVERTISED_TP; | |
70739497 | 689 | ethtool_cmd_speed_set(cmd, SPEED_10); |
1da177e4 LT |
690 | cmd->duplex = DUPLEX_HALF; |
691 | cmd->port = PORT_TP; | |
692 | cmd->phy_address = 0; | |
693 | cmd->transceiver = XCVR_INTERNAL; | |
694 | cmd->autoneg = AUTONEG_DISABLE; | |
695 | cmd->maxtxpkt = 1; | |
696 | cmd->maxrxpkt = 1; | |
697 | return 0; | |
698 | } | |
699 | ||
0fc0b732 | 700 | static const struct ethtool_ops ops = { |
1da177e4 LT |
701 | .get_drvinfo = catc_get_drvinfo, |
702 | .get_settings = catc_get_settings, | |
703 | .get_link = ethtool_op_get_link | |
704 | }; | |
705 | ||
706 | /* | |
707 | * Open, close. | |
708 | */ | |
709 | ||
710 | static int catc_open(struct net_device *netdev) | |
711 | { | |
712 | struct catc *catc = netdev_priv(netdev); | |
713 | int status; | |
714 | ||
715 | catc->irq_urb->dev = catc->usbdev; | |
716 | if ((status = usb_submit_urb(catc->irq_urb, GFP_KERNEL)) < 0) { | |
717 | err("submit(irq_urb) status %d", status); | |
718 | return -1; | |
719 | } | |
720 | ||
721 | netif_start_queue(netdev); | |
722 | ||
723 | if (!catc->is_f5u011) | |
724 | mod_timer(&catc->timer, jiffies + STATS_UPDATE); | |
725 | ||
726 | return 0; | |
727 | } | |
728 | ||
729 | static int catc_stop(struct net_device *netdev) | |
730 | { | |
731 | struct catc *catc = netdev_priv(netdev); | |
732 | ||
733 | netif_stop_queue(netdev); | |
734 | ||
735 | if (!catc->is_f5u011) | |
736 | del_timer_sync(&catc->timer); | |
737 | ||
738 | usb_kill_urb(catc->rx_urb); | |
739 | usb_kill_urb(catc->tx_urb); | |
740 | usb_kill_urb(catc->irq_urb); | |
741 | usb_kill_urb(catc->ctrl_urb); | |
742 | ||
743 | return 0; | |
744 | } | |
745 | ||
19b8f8f1 SH |
746 | static const struct net_device_ops catc_netdev_ops = { |
747 | .ndo_open = catc_open, | |
748 | .ndo_stop = catc_stop, | |
749 | .ndo_start_xmit = catc_start_xmit, | |
750 | ||
751 | .ndo_tx_timeout = catc_tx_timeout, | |
afc4b13d | 752 | .ndo_set_rx_mode = catc_set_multicast_list, |
19b8f8f1 SH |
753 | .ndo_change_mtu = eth_change_mtu, |
754 | .ndo_set_mac_address = eth_mac_addr, | |
755 | .ndo_validate_addr = eth_validate_addr, | |
756 | }; | |
757 | ||
1da177e4 LT |
758 | /* |
759 | * USB probe, disconnect. | |
760 | */ | |
761 | ||
762 | static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
763 | { | |
764 | struct usb_device *usbdev = interface_to_usbdev(intf); | |
765 | struct net_device *netdev; | |
766 | struct catc *catc; | |
767 | u8 broadcast[6]; | |
768 | int i, pktsz; | |
769 | ||
770 | if (usb_set_interface(usbdev, | |
771 | intf->altsetting->desc.bInterfaceNumber, 1)) { | |
772 | err("Can't set altsetting 1."); | |
773 | return -EIO; | |
774 | } | |
775 | ||
776 | netdev = alloc_etherdev(sizeof(struct catc)); | |
777 | if (!netdev) | |
778 | return -ENOMEM; | |
779 | ||
780 | catc = netdev_priv(netdev); | |
781 | ||
19b8f8f1 | 782 | netdev->netdev_ops = &catc_netdev_ops; |
1da177e4 | 783 | netdev->watchdog_timeo = TX_TIMEOUT; |
1da177e4 LT |
784 | SET_ETHTOOL_OPS(netdev, &ops); |
785 | ||
786 | catc->usbdev = usbdev; | |
787 | catc->netdev = netdev; | |
788 | ||
789 | spin_lock_init(&catc->tx_lock); | |
790 | spin_lock_init(&catc->ctrl_lock); | |
791 | ||
792 | init_timer(&catc->timer); | |
793 | catc->timer.data = (long) catc; | |
794 | catc->timer.function = catc_stats_timer; | |
795 | ||
796 | catc->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); | |
797 | catc->tx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
798 | catc->rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
799 | catc->irq_urb = usb_alloc_urb(0, GFP_KERNEL); | |
800 | if ((!catc->ctrl_urb) || (!catc->tx_urb) || | |
801 | (!catc->rx_urb) || (!catc->irq_urb)) { | |
802 | err("No free urbs available."); | |
c69694b7 MK |
803 | usb_free_urb(catc->ctrl_urb); |
804 | usb_free_urb(catc->tx_urb); | |
805 | usb_free_urb(catc->rx_urb); | |
806 | usb_free_urb(catc->irq_urb); | |
1da177e4 LT |
807 | free_netdev(netdev); |
808 | return -ENOMEM; | |
809 | } | |
810 | ||
811 | /* The F5U011 has the same vendor/product as the netmate but a device version of 0x130 */ | |
812 | if (le16_to_cpu(usbdev->descriptor.idVendor) == 0x0423 && | |
813 | le16_to_cpu(usbdev->descriptor.idProduct) == 0xa && | |
814 | le16_to_cpu(catc->usbdev->descriptor.bcdDevice) == 0x0130) { | |
815 | dbg("Testing for f5u011"); | |
816 | catc->is_f5u011 = 1; | |
817 | atomic_set(&catc->recq_sz, 0); | |
818 | pktsz = RX_PKT_SZ; | |
819 | } else { | |
820 | pktsz = RX_MAX_BURST * (PKT_SZ + 2); | |
821 | } | |
822 | ||
823 | usb_fill_control_urb(catc->ctrl_urb, usbdev, usb_sndctrlpipe(usbdev, 0), | |
824 | NULL, NULL, 0, catc_ctrl_done, catc); | |
825 | ||
826 | usb_fill_bulk_urb(catc->tx_urb, usbdev, usb_sndbulkpipe(usbdev, 1), | |
827 | NULL, 0, catc_tx_done, catc); | |
828 | ||
829 | usb_fill_bulk_urb(catc->rx_urb, usbdev, usb_rcvbulkpipe(usbdev, 1), | |
830 | catc->rx_buf, pktsz, catc_rx_done, catc); | |
831 | ||
832 | usb_fill_int_urb(catc->irq_urb, usbdev, usb_rcvintpipe(usbdev, 2), | |
833 | catc->irq_buf, 2, catc_irq_done, catc, 1); | |
834 | ||
835 | if (!catc->is_f5u011) { | |
836 | dbg("Checking memory size\n"); | |
837 | ||
838 | i = 0x12345678; | |
839 | catc_write_mem(catc, 0x7a80, &i, 4); | |
840 | i = 0x87654321; | |
841 | catc_write_mem(catc, 0xfa80, &i, 4); | |
842 | catc_read_mem(catc, 0x7a80, &i, 4); | |
843 | ||
844 | switch (i) { | |
845 | case 0x12345678: | |
846 | catc_set_reg(catc, TxBufCount, 8); | |
847 | catc_set_reg(catc, RxBufCount, 32); | |
848 | dbg("64k Memory\n"); | |
849 | break; | |
850 | default: | |
4dc89948 GKH |
851 | dev_warn(&intf->dev, |
852 | "Couldn't detect memory size, assuming 32k\n"); | |
1da177e4 LT |
853 | case 0x87654321: |
854 | catc_set_reg(catc, TxBufCount, 4); | |
855 | catc_set_reg(catc, RxBufCount, 16); | |
856 | dbg("32k Memory\n"); | |
857 | break; | |
858 | } | |
859 | ||
860 | dbg("Getting MAC from SEEROM."); | |
861 | ||
862 | catc_get_mac(catc, netdev->dev_addr); | |
863 | ||
864 | dbg("Setting MAC into registers."); | |
865 | ||
866 | for (i = 0; i < 6; i++) | |
867 | catc_set_reg(catc, StationAddr0 - i, netdev->dev_addr[i]); | |
868 | ||
869 | dbg("Filling the multicast list."); | |
870 | ||
871 | memset(broadcast, 0xff, 6); | |
872 | catc_multicast(broadcast, catc->multicast); | |
873 | catc_multicast(netdev->dev_addr, catc->multicast); | |
874 | catc_write_mem(catc, 0xfa80, catc->multicast, 64); | |
875 | ||
876 | dbg("Clearing error counters."); | |
877 | ||
878 | for (i = 0; i < 8; i++) | |
879 | catc_set_reg(catc, EthStats + i, 0); | |
880 | catc->last_stats = jiffies; | |
881 | ||
882 | dbg("Enabling."); | |
883 | ||
884 | catc_set_reg(catc, MaxBurst, RX_MAX_BURST); | |
885 | catc_set_reg(catc, OpModes, OpTxMerge | OpRxMerge | OpLenInclude | Op3MemWaits); | |
886 | catc_set_reg(catc, LEDCtrl, LEDLink); | |
887 | catc_set_reg(catc, RxUnit, RxEnable | RxPolarity | RxMultiCast); | |
888 | } else { | |
889 | dbg("Performing reset\n"); | |
890 | catc_reset(catc); | |
891 | catc_get_mac(catc, netdev->dev_addr); | |
892 | ||
893 | dbg("Setting RX Mode"); | |
894 | catc->rxmode[0] = RxEnable | RxPolarity | RxMultiCast; | |
895 | catc->rxmode[1] = 0; | |
896 | f5u011_rxmode(catc, catc->rxmode); | |
897 | } | |
898 | dbg("Init done."); | |
3b8dff36 | 899 | printk(KERN_INFO "%s: %s USB Ethernet at usb-%s-%s, %pM.\n", |
1da177e4 | 900 | netdev->name, (catc->is_f5u011) ? "Belkin F5U011" : "CATC EL1210A NetMate", |
3b8dff36 | 901 | usbdev->bus->bus_name, usbdev->devpath, netdev->dev_addr); |
1da177e4 LT |
902 | usb_set_intfdata(intf, catc); |
903 | ||
904 | SET_NETDEV_DEV(netdev, &intf->dev); | |
905 | if (register_netdev(netdev) != 0) { | |
906 | usb_set_intfdata(intf, NULL); | |
907 | usb_free_urb(catc->ctrl_urb); | |
908 | usb_free_urb(catc->tx_urb); | |
909 | usb_free_urb(catc->rx_urb); | |
910 | usb_free_urb(catc->irq_urb); | |
911 | free_netdev(netdev); | |
912 | return -EIO; | |
913 | } | |
914 | return 0; | |
915 | } | |
916 | ||
917 | static void catc_disconnect(struct usb_interface *intf) | |
918 | { | |
919 | struct catc *catc = usb_get_intfdata(intf); | |
920 | ||
921 | usb_set_intfdata(intf, NULL); | |
922 | if (catc) { | |
923 | unregister_netdev(catc->netdev); | |
924 | usb_free_urb(catc->ctrl_urb); | |
925 | usb_free_urb(catc->tx_urb); | |
926 | usb_free_urb(catc->rx_urb); | |
927 | usb_free_urb(catc->irq_urb); | |
928 | free_netdev(catc->netdev); | |
929 | } | |
930 | } | |
931 | ||
932 | /* | |
933 | * Module functions and tables. | |
934 | */ | |
935 | ||
936 | static struct usb_device_id catc_id_table [] = { | |
937 | { USB_DEVICE(0x0423, 0xa) }, /* CATC Netmate, Belkin F5U011 */ | |
938 | { USB_DEVICE(0x0423, 0xc) }, /* CATC Netmate II, Belkin F5U111 */ | |
939 | { USB_DEVICE(0x08d1, 0x1) }, /* smartBridges smartNIC */ | |
940 | { } | |
941 | }; | |
942 | ||
943 | MODULE_DEVICE_TABLE(usb, catc_id_table); | |
944 | ||
945 | static struct usb_driver catc_driver = { | |
1da177e4 LT |
946 | .name = driver_name, |
947 | .probe = catc_probe, | |
948 | .disconnect = catc_disconnect, | |
949 | .id_table = catc_id_table, | |
950 | }; | |
951 | ||
d632eb1b | 952 | module_usb_driver(catc_driver); |