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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 | |
9cb00073 | 27 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
1da177e4 LT |
28 | * |
29 | * Should you need to contact me, the author, you can do so either by | |
30 | * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail: | |
31 | * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic | |
32 | */ | |
33 | ||
1da177e4 LT |
34 | #include <linux/module.h> |
35 | #include <linux/kernel.h> | |
36 | #include <linux/string.h> | |
1da177e4 LT |
37 | #include <linux/netdevice.h> |
38 | #include <linux/etherdevice.h> | |
39 | #include <linux/skbuff.h> | |
40 | #include <linux/spinlock.h> | |
41 | #include <linux/ethtool.h> | |
42 | #include <linux/crc32.h> | |
43 | #include <linux/bitops.h> | |
5a0e3ad6 | 44 | #include <linux/gfp.h> |
7c0f6ba6 | 45 | #include <linux/uaccess.h> |
1da177e4 LT |
46 | |
47 | #undef DEBUG | |
48 | ||
49 | #include <linux/usb.h> | |
50 | ||
51 | /* | |
52 | * Version information. | |
53 | */ | |
54 | ||
55 | #define DRIVER_VERSION "v2.8" | |
56 | #define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@suse.cz>" | |
57 | #define DRIVER_DESC "CATC EL1210A NetMate USB Ethernet driver" | |
58 | #define SHORT_DRIVER_DESC "EL1210A NetMate USB Ethernet" | |
59 | ||
60 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
61 | MODULE_DESCRIPTION(DRIVER_DESC); | |
62 | MODULE_LICENSE("GPL"); | |
63 | ||
64 | static const char driver_name[] = "catc"; | |
65 | ||
66 | /* | |
67 | * Some defines. | |
68 | */ | |
69 | ||
70 | #define STATS_UPDATE (HZ) /* Time between stats updates */ | |
71 | #define TX_TIMEOUT (5*HZ) /* Max time the queue can be stopped */ | |
72 | #define PKT_SZ 1536 /* Max Ethernet packet size */ | |
73 | #define RX_MAX_BURST 15 /* Max packets per rx buffer (> 0, < 16) */ | |
74 | #define TX_MAX_BURST 15 /* Max full sized packets per tx buffer (> 0) */ | |
75 | #define CTRL_QUEUE 16 /* Max control requests in flight (power of two) */ | |
76 | #define RX_PKT_SZ 1600 /* Max size of receive packet for F5U011 */ | |
77 | ||
78 | /* | |
79 | * Control requests. | |
80 | */ | |
81 | ||
82 | enum control_requests { | |
83 | ReadMem = 0xf1, | |
84 | GetMac = 0xf2, | |
85 | Reset = 0xf4, | |
86 | SetMac = 0xf5, | |
87 | SetRxMode = 0xf5, /* F5U011 only */ | |
88 | WriteROM = 0xf8, | |
89 | SetReg = 0xfa, | |
90 | GetReg = 0xfb, | |
91 | WriteMem = 0xfc, | |
92 | ReadROM = 0xfd, | |
93 | }; | |
94 | ||
95 | /* | |
96 | * Registers. | |
97 | */ | |
98 | ||
99 | enum register_offsets { | |
100 | TxBufCount = 0x20, | |
101 | RxBufCount = 0x21, | |
102 | OpModes = 0x22, | |
103 | TxQed = 0x23, | |
104 | RxQed = 0x24, | |
105 | MaxBurst = 0x25, | |
106 | RxUnit = 0x60, | |
107 | EthStatus = 0x61, | |
108 | StationAddr0 = 0x67, | |
109 | EthStats = 0x69, | |
110 | LEDCtrl = 0x81, | |
111 | }; | |
112 | ||
113 | enum eth_stats { | |
114 | TxSingleColl = 0x00, | |
115 | TxMultiColl = 0x02, | |
116 | TxExcessColl = 0x04, | |
117 | RxFramErr = 0x06, | |
118 | }; | |
119 | ||
120 | enum op_mode_bits { | |
121 | Op3MemWaits = 0x03, | |
122 | OpLenInclude = 0x08, | |
123 | OpRxMerge = 0x10, | |
124 | OpTxMerge = 0x20, | |
125 | OpWin95bugfix = 0x40, | |
126 | OpLoopback = 0x80, | |
127 | }; | |
128 | ||
129 | enum rx_filter_bits { | |
130 | RxEnable = 0x01, | |
131 | RxPolarity = 0x02, | |
132 | RxForceOK = 0x04, | |
133 | RxMultiCast = 0x08, | |
134 | RxPromisc = 0x10, | |
135 | AltRxPromisc = 0x20, /* F5U011 uses different bit */ | |
136 | }; | |
137 | ||
138 | enum led_values { | |
139 | LEDFast = 0x01, | |
140 | LEDSlow = 0x02, | |
141 | LEDFlash = 0x03, | |
142 | LEDPulse = 0x04, | |
143 | LEDLink = 0x08, | |
144 | }; | |
145 | ||
146 | enum link_status { | |
147 | LinkNoChange = 0, | |
148 | LinkGood = 1, | |
149 | LinkBad = 2 | |
150 | }; | |
151 | ||
152 | /* | |
153 | * The catc struct. | |
154 | */ | |
155 | ||
156 | #define CTRL_RUNNING 0 | |
157 | #define RX_RUNNING 1 | |
158 | #define TX_RUNNING 2 | |
159 | ||
160 | struct catc { | |
161 | struct net_device *netdev; | |
162 | struct usb_device *usbdev; | |
163 | ||
1da177e4 LT |
164 | unsigned long flags; |
165 | ||
166 | unsigned int tx_ptr, tx_idx; | |
167 | unsigned int ctrl_head, ctrl_tail; | |
168 | spinlock_t tx_lock, ctrl_lock; | |
169 | ||
170 | u8 tx_buf[2][TX_MAX_BURST * (PKT_SZ + 2)]; | |
171 | u8 rx_buf[RX_MAX_BURST * (PKT_SZ + 2)]; | |
172 | u8 irq_buf[2]; | |
173 | u8 ctrl_buf[64]; | |
174 | struct usb_ctrlrequest ctrl_dr; | |
175 | ||
176 | struct timer_list timer; | |
177 | u8 stats_buf[8]; | |
178 | u16 stats_vals[4]; | |
179 | unsigned long last_stats; | |
180 | ||
181 | u8 multicast[64]; | |
182 | ||
183 | struct ctrl_queue { | |
184 | u8 dir; | |
185 | u8 request; | |
186 | u16 value; | |
187 | u16 index; | |
188 | void *buf; | |
189 | int len; | |
190 | void (*callback)(struct catc *catc, struct ctrl_queue *q); | |
191 | } ctrl_queue[CTRL_QUEUE]; | |
192 | ||
193 | struct urb *tx_urb, *rx_urb, *irq_urb, *ctrl_urb; | |
194 | ||
195 | u8 is_f5u011; /* Set if device is an F5U011 */ | |
196 | u8 rxmode[2]; /* Used for F5U011 */ | |
197 | atomic_t recq_sz; /* Used for F5U011 - counter of waiting rx packets */ | |
198 | }; | |
199 | ||
200 | /* | |
201 | * Useful macros. | |
202 | */ | |
203 | ||
204 | #define catc_get_mac(catc, mac) catc_ctrl_msg(catc, USB_DIR_IN, GetMac, 0, 0, mac, 6) | |
205 | #define catc_reset(catc) catc_ctrl_msg(catc, USB_DIR_OUT, Reset, 0, 0, NULL, 0) | |
206 | #define catc_set_reg(catc, reg, val) catc_ctrl_msg(catc, USB_DIR_OUT, SetReg, val, reg, NULL, 0) | |
207 | #define catc_get_reg(catc, reg, buf) catc_ctrl_msg(catc, USB_DIR_IN, GetReg, 0, reg, buf, 1) | |
208 | #define catc_write_mem(catc, addr, buf, size) catc_ctrl_msg(catc, USB_DIR_OUT, WriteMem, 0, addr, buf, size) | |
209 | #define catc_read_mem(catc, addr, buf, size) catc_ctrl_msg(catc, USB_DIR_IN, ReadMem, 0, addr, buf, size) | |
210 | ||
211 | #define f5u011_rxmode(catc, rxmode) catc_ctrl_msg(catc, USB_DIR_OUT, SetRxMode, 0, 1, rxmode, 2) | |
212 | #define f5u011_rxmode_async(catc, rxmode) catc_ctrl_async(catc, USB_DIR_OUT, SetRxMode, 0, 1, &rxmode, 2, NULL) | |
213 | #define f5u011_mchash_async(catc, hash) catc_ctrl_async(catc, USB_DIR_OUT, SetRxMode, 0, 2, &hash, 8, NULL) | |
214 | ||
215 | #define catc_set_reg_async(catc, reg, val) catc_ctrl_async(catc, USB_DIR_OUT, SetReg, val, reg, NULL, 0, NULL) | |
216 | #define catc_get_reg_async(catc, reg, cb) catc_ctrl_async(catc, USB_DIR_IN, GetReg, 0, reg, NULL, 1, cb) | |
217 | #define catc_write_mem_async(catc, addr, buf, size) catc_ctrl_async(catc, USB_DIR_OUT, WriteMem, 0, addr, buf, size, NULL) | |
218 | ||
219 | /* | |
220 | * Receive routines. | |
221 | */ | |
222 | ||
7d12e780 | 223 | static void catc_rx_done(struct urb *urb) |
1da177e4 LT |
224 | { |
225 | struct catc *catc = urb->context; | |
226 | u8 *pkt_start = urb->transfer_buffer; | |
227 | struct sk_buff *skb; | |
228 | int pkt_len, pkt_offset = 0; | |
c94cb314 | 229 | int status = urb->status; |
1da177e4 LT |
230 | |
231 | if (!catc->is_f5u011) { | |
232 | clear_bit(RX_RUNNING, &catc->flags); | |
233 | pkt_offset = 2; | |
234 | } | |
235 | ||
c94cb314 | 236 | if (status) { |
49ae25b0 GKH |
237 | dev_dbg(&urb->dev->dev, "rx_done, status %d, length %d\n", |
238 | status, urb->actual_length); | |
1da177e4 LT |
239 | return; |
240 | } | |
241 | ||
242 | do { | |
243 | if(!catc->is_f5u011) { | |
244 | pkt_len = le16_to_cpup((__le16*)pkt_start); | |
245 | if (pkt_len > urb->actual_length) { | |
edc4ae08 SH |
246 | catc->netdev->stats.rx_length_errors++; |
247 | catc->netdev->stats.rx_errors++; | |
1da177e4 LT |
248 | break; |
249 | } | |
250 | } else { | |
251 | pkt_len = urb->actual_length; | |
252 | } | |
253 | ||
254 | if (!(skb = dev_alloc_skb(pkt_len))) | |
255 | return; | |
256 | ||
8c7b7faa | 257 | skb_copy_to_linear_data(skb, pkt_start + pkt_offset, pkt_len); |
1da177e4 LT |
258 | skb_put(skb, pkt_len); |
259 | ||
260 | skb->protocol = eth_type_trans(skb, catc->netdev); | |
261 | netif_rx(skb); | |
262 | ||
edc4ae08 SH |
263 | catc->netdev->stats.rx_packets++; |
264 | catc->netdev->stats.rx_bytes += pkt_len; | |
1da177e4 LT |
265 | |
266 | /* F5U011 only does one packet per RX */ | |
267 | if (catc->is_f5u011) | |
268 | break; | |
269 | pkt_start += (((pkt_len + 1) >> 6) + 1) << 6; | |
270 | ||
271 | } while (pkt_start - (u8 *) urb->transfer_buffer < urb->actual_length); | |
272 | ||
1da177e4 LT |
273 | if (catc->is_f5u011) { |
274 | if (atomic_read(&catc->recq_sz)) { | |
c94cb314 | 275 | int state; |
1da177e4 | 276 | atomic_dec(&catc->recq_sz); |
49ae25b0 | 277 | netdev_dbg(catc->netdev, "getting extra packet\n"); |
1da177e4 | 278 | urb->dev = catc->usbdev; |
c94cb314 | 279 | if ((state = usb_submit_urb(urb, GFP_ATOMIC)) < 0) { |
49ae25b0 GKH |
280 | netdev_dbg(catc->netdev, |
281 | "submit(rx_urb) status %d\n", 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 */ | |
49ae25b0 GKH |
320 | dev_dbg(&urb->dev->dev, |
321 | "irq_done, status %d, data %02x %02x.\n", | |
322 | status, data[0], data[1]); | |
1da177e4 LT |
323 | goto resubmit; |
324 | } | |
325 | ||
326 | if (linksts == LinkGood) { | |
327 | netif_carrier_on(catc->netdev); | |
49ae25b0 | 328 | netdev_dbg(catc->netdev, "link ok\n"); |
1da177e4 LT |
329 | } |
330 | ||
331 | if (linksts == LinkBad) { | |
332 | netif_carrier_off(catc->netdev); | |
49ae25b0 | 333 | netdev_dbg(catc->netdev, "link bad\n"); |
1da177e4 LT |
334 | } |
335 | ||
336 | if (hasdata) { | |
337 | if (test_and_set_bit(RX_RUNNING, &catc->flags)) { | |
338 | if (catc->is_f5u011) | |
339 | atomic_inc(&catc->recq_sz); | |
340 | } else { | |
341 | catc->rx_urb->dev = catc->usbdev; | |
c94cb314 | 342 | if ((res = usb_submit_urb(catc->rx_urb, GFP_ATOMIC)) < 0) { |
50c627c9 GKH |
343 | dev_err(&catc->usbdev->dev, |
344 | "submit(rx_urb) status %d\n", res); | |
1da177e4 LT |
345 | } |
346 | } | |
347 | } | |
348 | resubmit: | |
c94cb314 ON |
349 | res = usb_submit_urb (urb, GFP_ATOMIC); |
350 | if (res) | |
50c627c9 GKH |
351 | dev_err(&catc->usbdev->dev, |
352 | "can't resubmit intr, %s-%s, status %d\n", | |
353 | catc->usbdev->bus->bus_name, | |
354 | catc->usbdev->devpath, res); | |
1da177e4 LT |
355 | } |
356 | ||
357 | /* | |
358 | * Transmit routines. | |
359 | */ | |
360 | ||
5a9f4e33 | 361 | static int catc_tx_run(struct catc *catc) |
1da177e4 LT |
362 | { |
363 | int status; | |
364 | ||
365 | if (catc->is_f5u011) | |
366 | catc->tx_ptr = (catc->tx_ptr + 63) & ~63; | |
367 | ||
368 | catc->tx_urb->transfer_buffer_length = catc->tx_ptr; | |
369 | catc->tx_urb->transfer_buffer = catc->tx_buf[catc->tx_idx]; | |
370 | catc->tx_urb->dev = catc->usbdev; | |
371 | ||
372 | if ((status = usb_submit_urb(catc->tx_urb, GFP_ATOMIC)) < 0) | |
50c627c9 GKH |
373 | dev_err(&catc->usbdev->dev, "submit(tx_urb), status %d\n", |
374 | status); | |
1da177e4 LT |
375 | |
376 | catc->tx_idx = !catc->tx_idx; | |
377 | catc->tx_ptr = 0; | |
378 | ||
860e9538 | 379 | netif_trans_update(catc->netdev); |
5a9f4e33 | 380 | return status; |
1da177e4 LT |
381 | } |
382 | ||
7d12e780 | 383 | static void catc_tx_done(struct urb *urb) |
1da177e4 LT |
384 | { |
385 | struct catc *catc = urb->context; | |
386 | unsigned long flags; | |
c94cb314 | 387 | int r, status = urb->status; |
1da177e4 | 388 | |
c94cb314 | 389 | if (status == -ECONNRESET) { |
49ae25b0 | 390 | dev_dbg(&urb->dev->dev, "Tx Reset.\n"); |
1da177e4 | 391 | urb->status = 0; |
860e9538 | 392 | netif_trans_update(catc->netdev); |
edc4ae08 | 393 | catc->netdev->stats.tx_errors++; |
1da177e4 LT |
394 | clear_bit(TX_RUNNING, &catc->flags); |
395 | netif_wake_queue(catc->netdev); | |
396 | return; | |
397 | } | |
398 | ||
c94cb314 | 399 | if (status) { |
49ae25b0 GKH |
400 | dev_dbg(&urb->dev->dev, "tx_done, status %d, length %d\n", |
401 | status, urb->actual_length); | |
1da177e4 LT |
402 | return; |
403 | } | |
404 | ||
405 | spin_lock_irqsave(&catc->tx_lock, flags); | |
406 | ||
5a9f4e33 ON |
407 | if (catc->tx_ptr) { |
408 | r = catc_tx_run(catc); | |
409 | if (unlikely(r < 0)) | |
410 | clear_bit(TX_RUNNING, &catc->flags); | |
411 | } else { | |
1da177e4 | 412 | clear_bit(TX_RUNNING, &catc->flags); |
5a9f4e33 | 413 | } |
1da177e4 LT |
414 | |
415 | netif_wake_queue(catc->netdev); | |
416 | ||
417 | spin_unlock_irqrestore(&catc->tx_lock, flags); | |
418 | } | |
419 | ||
25a79c41 SH |
420 | static netdev_tx_t catc_start_xmit(struct sk_buff *skb, |
421 | struct net_device *netdev) | |
1da177e4 LT |
422 | { |
423 | struct catc *catc = netdev_priv(netdev); | |
424 | unsigned long flags; | |
5a9f4e33 | 425 | int r = 0; |
1da177e4 LT |
426 | char *tx_buf; |
427 | ||
428 | spin_lock_irqsave(&catc->tx_lock, flags); | |
429 | ||
430 | catc->tx_ptr = (((catc->tx_ptr - 1) >> 6) + 1) << 6; | |
431 | tx_buf = catc->tx_buf[catc->tx_idx] + catc->tx_ptr; | |
4ec7ffa2 AV |
432 | if (catc->is_f5u011) |
433 | *(__be16 *)tx_buf = cpu_to_be16(skb->len); | |
434 | else | |
435 | *(__le16 *)tx_buf = cpu_to_le16(skb->len); | |
d626f62b | 436 | skb_copy_from_linear_data(skb, tx_buf + 2, skb->len); |
1da177e4 LT |
437 | catc->tx_ptr += skb->len + 2; |
438 | ||
5a9f4e33 ON |
439 | if (!test_and_set_bit(TX_RUNNING, &catc->flags)) { |
440 | r = catc_tx_run(catc); | |
441 | if (r < 0) | |
442 | clear_bit(TX_RUNNING, &catc->flags); | |
443 | } | |
1da177e4 | 444 | |
8e95a202 JP |
445 | if ((catc->is_f5u011 && catc->tx_ptr) || |
446 | (catc->tx_ptr >= ((TX_MAX_BURST - 1) * (PKT_SZ + 2)))) | |
1da177e4 LT |
447 | netif_stop_queue(netdev); |
448 | ||
449 | spin_unlock_irqrestore(&catc->tx_lock, flags); | |
450 | ||
5a9f4e33 | 451 | if (r >= 0) { |
edc4ae08 SH |
452 | catc->netdev->stats.tx_bytes += skb->len; |
453 | catc->netdev->stats.tx_packets++; | |
5a9f4e33 | 454 | } |
1da177e4 LT |
455 | |
456 | dev_kfree_skb(skb); | |
457 | ||
6ed10654 | 458 | return NETDEV_TX_OK; |
1da177e4 LT |
459 | } |
460 | ||
461 | static void catc_tx_timeout(struct net_device *netdev) | |
462 | { | |
463 | struct catc *catc = netdev_priv(netdev); | |
464 | ||
4dc89948 | 465 | dev_warn(&netdev->dev, "Transmit timed out.\n"); |
1da177e4 LT |
466 | usb_unlink_urb(catc->tx_urb); |
467 | } | |
468 | ||
469 | /* | |
470 | * Control messages. | |
471 | */ | |
472 | ||
473 | static int catc_ctrl_msg(struct catc *catc, u8 dir, u8 request, u16 value, u16 index, void *buf, int len) | |
474 | { | |
475 | int retval = usb_control_msg(catc->usbdev, | |
476 | dir ? usb_rcvctrlpipe(catc->usbdev, 0) : usb_sndctrlpipe(catc->usbdev, 0), | |
477 | request, 0x40 | dir, value, index, buf, len, 1000); | |
478 | return retval < 0 ? retval : 0; | |
479 | } | |
480 | ||
481 | static void catc_ctrl_run(struct catc *catc) | |
482 | { | |
483 | struct ctrl_queue *q = catc->ctrl_queue + catc->ctrl_tail; | |
484 | struct usb_device *usbdev = catc->usbdev; | |
485 | struct urb *urb = catc->ctrl_urb; | |
486 | struct usb_ctrlrequest *dr = &catc->ctrl_dr; | |
487 | int status; | |
488 | ||
489 | dr->bRequest = q->request; | |
490 | dr->bRequestType = 0x40 | q->dir; | |
491 | dr->wValue = cpu_to_le16(q->value); | |
492 | dr->wIndex = cpu_to_le16(q->index); | |
493 | dr->wLength = cpu_to_le16(q->len); | |
494 | ||
495 | urb->pipe = q->dir ? usb_rcvctrlpipe(usbdev, 0) : usb_sndctrlpipe(usbdev, 0); | |
496 | urb->transfer_buffer_length = q->len; | |
497 | urb->transfer_buffer = catc->ctrl_buf; | |
498 | urb->setup_packet = (void *) dr; | |
499 | urb->dev = usbdev; | |
500 | ||
501 | if (!q->dir && q->buf && q->len) | |
502 | memcpy(catc->ctrl_buf, q->buf, q->len); | |
503 | ||
930a6eac | 504 | if ((status = usb_submit_urb(catc->ctrl_urb, GFP_ATOMIC))) |
50c627c9 GKH |
505 | dev_err(&catc->usbdev->dev, "submit(ctrl_urb) status %d\n", |
506 | status); | |
1da177e4 LT |
507 | } |
508 | ||
7d12e780 | 509 | static void catc_ctrl_done(struct urb *urb) |
1da177e4 LT |
510 | { |
511 | struct catc *catc = urb->context; | |
512 | struct ctrl_queue *q; | |
513 | unsigned long flags; | |
c94cb314 | 514 | int status = urb->status; |
1da177e4 | 515 | |
c94cb314 | 516 | if (status) |
49ae25b0 GKH |
517 | dev_dbg(&urb->dev->dev, "ctrl_done, status %d, len %d.\n", |
518 | status, urb->actual_length); | |
1da177e4 LT |
519 | |
520 | spin_lock_irqsave(&catc->ctrl_lock, flags); | |
521 | ||
522 | q = catc->ctrl_queue + catc->ctrl_tail; | |
523 | ||
524 | if (q->dir) { | |
525 | if (q->buf && q->len) | |
526 | memcpy(q->buf, catc->ctrl_buf, q->len); | |
527 | else | |
528 | q->buf = catc->ctrl_buf; | |
529 | } | |
530 | ||
531 | if (q->callback) | |
532 | q->callback(catc, q); | |
533 | ||
534 | catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1); | |
535 | ||
536 | if (catc->ctrl_head != catc->ctrl_tail) | |
537 | catc_ctrl_run(catc); | |
538 | else | |
539 | clear_bit(CTRL_RUNNING, &catc->flags); | |
540 | ||
541 | spin_unlock_irqrestore(&catc->ctrl_lock, flags); | |
542 | } | |
543 | ||
544 | static int catc_ctrl_async(struct catc *catc, u8 dir, u8 request, u16 value, | |
545 | u16 index, void *buf, int len, void (*callback)(struct catc *catc, struct ctrl_queue *q)) | |
546 | { | |
547 | struct ctrl_queue *q; | |
548 | int retval = 0; | |
549 | unsigned long flags; | |
550 | ||
551 | spin_lock_irqsave(&catc->ctrl_lock, flags); | |
552 | ||
553 | q = catc->ctrl_queue + catc->ctrl_head; | |
554 | ||
555 | q->dir = dir; | |
556 | q->request = request; | |
557 | q->value = value; | |
558 | q->index = index; | |
559 | q->buf = buf; | |
560 | q->len = len; | |
561 | q->callback = callback; | |
562 | ||
563 | catc->ctrl_head = (catc->ctrl_head + 1) & (CTRL_QUEUE - 1); | |
564 | ||
565 | if (catc->ctrl_head == catc->ctrl_tail) { | |
50c627c9 | 566 | dev_err(&catc->usbdev->dev, "ctrl queue full\n"); |
1da177e4 LT |
567 | catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1); |
568 | retval = -1; | |
569 | } | |
570 | ||
571 | if (!test_and_set_bit(CTRL_RUNNING, &catc->flags)) | |
572 | catc_ctrl_run(catc); | |
573 | ||
574 | spin_unlock_irqrestore(&catc->ctrl_lock, flags); | |
575 | ||
576 | return retval; | |
577 | } | |
578 | ||
579 | /* | |
580 | * Statistics. | |
581 | */ | |
582 | ||
583 | static void catc_stats_done(struct catc *catc, struct ctrl_queue *q) | |
584 | { | |
585 | int index = q->index - EthStats; | |
586 | u16 data, last; | |
587 | ||
588 | catc->stats_buf[index] = *((char *)q->buf); | |
589 | ||
590 | if (index & 1) | |
591 | return; | |
592 | ||
593 | data = ((u16)catc->stats_buf[index] << 8) | catc->stats_buf[index + 1]; | |
594 | last = catc->stats_vals[index >> 1]; | |
595 | ||
596 | switch (index) { | |
597 | case TxSingleColl: | |
598 | case TxMultiColl: | |
edc4ae08 | 599 | catc->netdev->stats.collisions += data - last; |
1da177e4 LT |
600 | break; |
601 | case TxExcessColl: | |
edc4ae08 SH |
602 | catc->netdev->stats.tx_aborted_errors += data - last; |
603 | catc->netdev->stats.tx_errors += data - last; | |
1da177e4 LT |
604 | break; |
605 | case RxFramErr: | |
edc4ae08 SH |
606 | catc->netdev->stats.rx_frame_errors += data - last; |
607 | catc->netdev->stats.rx_errors += data - last; | |
1da177e4 LT |
608 | break; |
609 | } | |
610 | ||
611 | catc->stats_vals[index >> 1] = data; | |
612 | } | |
613 | ||
614 | static void catc_stats_timer(unsigned long data) | |
615 | { | |
616 | struct catc *catc = (void *) data; | |
617 | int i; | |
618 | ||
619 | for (i = 0; i < 8; i++) | |
620 | catc_get_reg_async(catc, EthStats + 7 - i, catc_stats_done); | |
621 | ||
622 | mod_timer(&catc->timer, jiffies + STATS_UPDATE); | |
623 | } | |
624 | ||
1da177e4 LT |
625 | /* |
626 | * Receive modes. Broadcast, Multicast, Promisc. | |
627 | */ | |
628 | ||
629 | static void catc_multicast(unsigned char *addr, u8 *multicast) | |
630 | { | |
631 | u32 crc; | |
632 | ||
633 | crc = ether_crc_le(6, addr); | |
634 | multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7); | |
635 | } | |
636 | ||
637 | static void catc_set_multicast_list(struct net_device *netdev) | |
638 | { | |
639 | struct catc *catc = netdev_priv(netdev); | |
22bedad3 | 640 | struct netdev_hw_addr *ha; |
d458cdf7 | 641 | u8 broadcast[ETH_ALEN]; |
1da177e4 | 642 | u8 rx = RxEnable | RxPolarity | RxMultiCast; |
1da177e4 | 643 | |
519983b1 | 644 | eth_broadcast_addr(broadcast); |
1da177e4 LT |
645 | memset(catc->multicast, 0, 64); |
646 | ||
647 | catc_multicast(broadcast, catc->multicast); | |
648 | catc_multicast(netdev->dev_addr, catc->multicast); | |
649 | ||
650 | if (netdev->flags & IFF_PROMISC) { | |
651 | memset(catc->multicast, 0xff, 64); | |
652 | rx |= (!catc->is_f5u011) ? RxPromisc : AltRxPromisc; | |
653 | } | |
654 | ||
655 | if (netdev->flags & IFF_ALLMULTI) { | |
656 | memset(catc->multicast, 0xff, 64); | |
657 | } else { | |
22bedad3 JP |
658 | netdev_for_each_mc_addr(ha, netdev) { |
659 | u32 crc = ether_crc_le(6, ha->addr); | |
1da177e4 LT |
660 | if (!catc->is_f5u011) { |
661 | catc->multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7); | |
662 | } else { | |
663 | catc->multicast[7-(crc >> 29)] |= 1 << ((crc >> 26) & 7); | |
664 | } | |
665 | } | |
666 | } | |
667 | if (!catc->is_f5u011) { | |
668 | catc_set_reg_async(catc, RxUnit, rx); | |
669 | catc_write_mem_async(catc, 0xfa80, catc->multicast, 64); | |
670 | } else { | |
671 | f5u011_mchash_async(catc, catc->multicast); | |
672 | if (catc->rxmode[0] != rx) { | |
673 | catc->rxmode[0] = rx; | |
49ae25b0 GKH |
674 | netdev_dbg(catc->netdev, |
675 | "Setting RX mode to %2.2X %2.2X\n", | |
676 | catc->rxmode[0], catc->rxmode[1]); | |
1da177e4 LT |
677 | f5u011_rxmode_async(catc, catc->rxmode); |
678 | } | |
679 | } | |
680 | } | |
681 | ||
682 | static void catc_get_drvinfo(struct net_device *dev, | |
683 | struct ethtool_drvinfo *info) | |
684 | { | |
685 | struct catc *catc = netdev_priv(dev); | |
7826d43f JP |
686 | strlcpy(info->driver, driver_name, sizeof(info->driver)); |
687 | strlcpy(info->version, DRIVER_VERSION, sizeof(info->version)); | |
688 | usb_make_path(catc->usbdev, info->bus_info, sizeof(info->bus_info)); | |
1da177e4 LT |
689 | } |
690 | ||
691 | static int catc_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
692 | { | |
693 | struct catc *catc = netdev_priv(dev); | |
694 | if (!catc->is_f5u011) | |
695 | return -EOPNOTSUPP; | |
696 | ||
697 | cmd->supported = SUPPORTED_10baseT_Half | SUPPORTED_TP; | |
698 | cmd->advertising = ADVERTISED_10baseT_Half | ADVERTISED_TP; | |
70739497 | 699 | ethtool_cmd_speed_set(cmd, SPEED_10); |
1da177e4 LT |
700 | cmd->duplex = DUPLEX_HALF; |
701 | cmd->port = PORT_TP; | |
702 | cmd->phy_address = 0; | |
703 | cmd->transceiver = XCVR_INTERNAL; | |
704 | cmd->autoneg = AUTONEG_DISABLE; | |
705 | cmd->maxtxpkt = 1; | |
706 | cmd->maxrxpkt = 1; | |
707 | return 0; | |
708 | } | |
709 | ||
0fc0b732 | 710 | static const struct ethtool_ops ops = { |
1da177e4 LT |
711 | .get_drvinfo = catc_get_drvinfo, |
712 | .get_settings = catc_get_settings, | |
713 | .get_link = ethtool_op_get_link | |
714 | }; | |
715 | ||
716 | /* | |
717 | * Open, close. | |
718 | */ | |
719 | ||
720 | static int catc_open(struct net_device *netdev) | |
721 | { | |
722 | struct catc *catc = netdev_priv(netdev); | |
723 | int status; | |
724 | ||
725 | catc->irq_urb->dev = catc->usbdev; | |
726 | if ((status = usb_submit_urb(catc->irq_urb, GFP_KERNEL)) < 0) { | |
50c627c9 GKH |
727 | dev_err(&catc->usbdev->dev, "submit(irq_urb) status %d\n", |
728 | status); | |
1da177e4 LT |
729 | return -1; |
730 | } | |
731 | ||
732 | netif_start_queue(netdev); | |
733 | ||
734 | if (!catc->is_f5u011) | |
735 | mod_timer(&catc->timer, jiffies + STATS_UPDATE); | |
736 | ||
737 | return 0; | |
738 | } | |
739 | ||
740 | static int catc_stop(struct net_device *netdev) | |
741 | { | |
742 | struct catc *catc = netdev_priv(netdev); | |
743 | ||
744 | netif_stop_queue(netdev); | |
745 | ||
746 | if (!catc->is_f5u011) | |
747 | del_timer_sync(&catc->timer); | |
748 | ||
749 | usb_kill_urb(catc->rx_urb); | |
750 | usb_kill_urb(catc->tx_urb); | |
751 | usb_kill_urb(catc->irq_urb); | |
752 | usb_kill_urb(catc->ctrl_urb); | |
753 | ||
754 | return 0; | |
755 | } | |
756 | ||
19b8f8f1 SH |
757 | static const struct net_device_ops catc_netdev_ops = { |
758 | .ndo_open = catc_open, | |
759 | .ndo_stop = catc_stop, | |
760 | .ndo_start_xmit = catc_start_xmit, | |
761 | ||
762 | .ndo_tx_timeout = catc_tx_timeout, | |
afc4b13d | 763 | .ndo_set_rx_mode = catc_set_multicast_list, |
19b8f8f1 SH |
764 | .ndo_set_mac_address = eth_mac_addr, |
765 | .ndo_validate_addr = eth_validate_addr, | |
766 | }; | |
767 | ||
1da177e4 LT |
768 | /* |
769 | * USB probe, disconnect. | |
770 | */ | |
771 | ||
772 | static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id) | |
773 | { | |
49ae25b0 | 774 | struct device *dev = &intf->dev; |
1da177e4 LT |
775 | struct usb_device *usbdev = interface_to_usbdev(intf); |
776 | struct net_device *netdev; | |
777 | struct catc *catc; | |
d458cdf7 | 778 | u8 broadcast[ETH_ALEN]; |
2d6a0e9d | 779 | int pktsz, ret; |
1da177e4 LT |
780 | |
781 | if (usb_set_interface(usbdev, | |
782 | intf->altsetting->desc.bInterfaceNumber, 1)) { | |
49ae25b0 | 783 | dev_err(dev, "Can't set altsetting 1.\n"); |
1da177e4 LT |
784 | return -EIO; |
785 | } | |
786 | ||
787 | netdev = alloc_etherdev(sizeof(struct catc)); | |
788 | if (!netdev) | |
789 | return -ENOMEM; | |
790 | ||
791 | catc = netdev_priv(netdev); | |
792 | ||
19b8f8f1 | 793 | netdev->netdev_ops = &catc_netdev_ops; |
1da177e4 | 794 | netdev->watchdog_timeo = TX_TIMEOUT; |
7ad24ea4 | 795 | netdev->ethtool_ops = &ops; |
1da177e4 LT |
796 | |
797 | catc->usbdev = usbdev; | |
798 | catc->netdev = netdev; | |
799 | ||
800 | spin_lock_init(&catc->tx_lock); | |
801 | spin_lock_init(&catc->ctrl_lock); | |
802 | ||
803 | init_timer(&catc->timer); | |
804 | catc->timer.data = (long) catc; | |
805 | catc->timer.function = catc_stats_timer; | |
806 | ||
807 | catc->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL); | |
808 | catc->tx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
809 | catc->rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
810 | catc->irq_urb = usb_alloc_urb(0, GFP_KERNEL); | |
811 | if ((!catc->ctrl_urb) || (!catc->tx_urb) || | |
812 | (!catc->rx_urb) || (!catc->irq_urb)) { | |
50c627c9 | 813 | dev_err(&intf->dev, "No free urbs available.\n"); |
d4114914 BH |
814 | ret = -ENOMEM; |
815 | goto fail_free; | |
1da177e4 LT |
816 | } |
817 | ||
818 | /* The F5U011 has the same vendor/product as the netmate but a device version of 0x130 */ | |
819 | if (le16_to_cpu(usbdev->descriptor.idVendor) == 0x0423 && | |
820 | le16_to_cpu(usbdev->descriptor.idProduct) == 0xa && | |
821 | le16_to_cpu(catc->usbdev->descriptor.bcdDevice) == 0x0130) { | |
49ae25b0 | 822 | dev_dbg(dev, "Testing for f5u011\n"); |
1da177e4 LT |
823 | catc->is_f5u011 = 1; |
824 | atomic_set(&catc->recq_sz, 0); | |
825 | pktsz = RX_PKT_SZ; | |
826 | } else { | |
827 | pktsz = RX_MAX_BURST * (PKT_SZ + 2); | |
828 | } | |
829 | ||
830 | usb_fill_control_urb(catc->ctrl_urb, usbdev, usb_sndctrlpipe(usbdev, 0), | |
831 | NULL, NULL, 0, catc_ctrl_done, catc); | |
832 | ||
833 | usb_fill_bulk_urb(catc->tx_urb, usbdev, usb_sndbulkpipe(usbdev, 1), | |
834 | NULL, 0, catc_tx_done, catc); | |
835 | ||
836 | usb_fill_bulk_urb(catc->rx_urb, usbdev, usb_rcvbulkpipe(usbdev, 1), | |
837 | catc->rx_buf, pktsz, catc_rx_done, catc); | |
838 | ||
839 | usb_fill_int_urb(catc->irq_urb, usbdev, usb_rcvintpipe(usbdev, 2), | |
840 | catc->irq_buf, 2, catc_irq_done, catc, 1); | |
841 | ||
842 | if (!catc->is_f5u011) { | |
2d6a0e9d BH |
843 | u32 *buf; |
844 | int i; | |
845 | ||
49ae25b0 | 846 | dev_dbg(dev, "Checking memory size\n"); |
1da177e4 | 847 | |
2d6a0e9d BH |
848 | buf = kmalloc(4, GFP_KERNEL); |
849 | if (!buf) { | |
850 | ret = -ENOMEM; | |
851 | goto fail_free; | |
852 | } | |
853 | ||
854 | *buf = 0x12345678; | |
855 | catc_write_mem(catc, 0x7a80, buf, 4); | |
856 | *buf = 0x87654321; | |
857 | catc_write_mem(catc, 0xfa80, buf, 4); | |
858 | catc_read_mem(catc, 0x7a80, buf, 4); | |
1da177e4 | 859 | |
2d6a0e9d | 860 | switch (*buf) { |
1da177e4 LT |
861 | case 0x12345678: |
862 | catc_set_reg(catc, TxBufCount, 8); | |
863 | catc_set_reg(catc, RxBufCount, 32); | |
49ae25b0 | 864 | dev_dbg(dev, "64k Memory\n"); |
1da177e4 LT |
865 | break; |
866 | default: | |
4dc89948 GKH |
867 | dev_warn(&intf->dev, |
868 | "Couldn't detect memory size, assuming 32k\n"); | |
1da177e4 LT |
869 | case 0x87654321: |
870 | catc_set_reg(catc, TxBufCount, 4); | |
871 | catc_set_reg(catc, RxBufCount, 16); | |
49ae25b0 | 872 | dev_dbg(dev, "32k Memory\n"); |
1da177e4 LT |
873 | break; |
874 | } | |
2d6a0e9d BH |
875 | |
876 | kfree(buf); | |
1da177e4 | 877 | |
49ae25b0 | 878 | dev_dbg(dev, "Getting MAC from SEEROM.\n"); |
1da177e4 LT |
879 | |
880 | catc_get_mac(catc, netdev->dev_addr); | |
881 | ||
49ae25b0 | 882 | dev_dbg(dev, "Setting MAC into registers.\n"); |
1da177e4 LT |
883 | |
884 | for (i = 0; i < 6; i++) | |
885 | catc_set_reg(catc, StationAddr0 - i, netdev->dev_addr[i]); | |
886 | ||
49ae25b0 | 887 | dev_dbg(dev, "Filling the multicast list.\n"); |
1da177e4 | 888 | |
519983b1 | 889 | eth_broadcast_addr(broadcast); |
1da177e4 LT |
890 | catc_multicast(broadcast, catc->multicast); |
891 | catc_multicast(netdev->dev_addr, catc->multicast); | |
892 | catc_write_mem(catc, 0xfa80, catc->multicast, 64); | |
893 | ||
49ae25b0 | 894 | dev_dbg(dev, "Clearing error counters.\n"); |
1da177e4 LT |
895 | |
896 | for (i = 0; i < 8; i++) | |
897 | catc_set_reg(catc, EthStats + i, 0); | |
898 | catc->last_stats = jiffies; | |
899 | ||
49ae25b0 | 900 | dev_dbg(dev, "Enabling.\n"); |
1da177e4 LT |
901 | |
902 | catc_set_reg(catc, MaxBurst, RX_MAX_BURST); | |
903 | catc_set_reg(catc, OpModes, OpTxMerge | OpRxMerge | OpLenInclude | Op3MemWaits); | |
904 | catc_set_reg(catc, LEDCtrl, LEDLink); | |
905 | catc_set_reg(catc, RxUnit, RxEnable | RxPolarity | RxMultiCast); | |
906 | } else { | |
49ae25b0 | 907 | dev_dbg(dev, "Performing reset\n"); |
1da177e4 LT |
908 | catc_reset(catc); |
909 | catc_get_mac(catc, netdev->dev_addr); | |
910 | ||
49ae25b0 | 911 | dev_dbg(dev, "Setting RX Mode\n"); |
1da177e4 LT |
912 | catc->rxmode[0] = RxEnable | RxPolarity | RxMultiCast; |
913 | catc->rxmode[1] = 0; | |
914 | f5u011_rxmode(catc, catc->rxmode); | |
915 | } | |
49ae25b0 | 916 | dev_dbg(dev, "Init done.\n"); |
3b8dff36 | 917 | printk(KERN_INFO "%s: %s USB Ethernet at usb-%s-%s, %pM.\n", |
1da177e4 | 918 | netdev->name, (catc->is_f5u011) ? "Belkin F5U011" : "CATC EL1210A NetMate", |
3b8dff36 | 919 | usbdev->bus->bus_name, usbdev->devpath, netdev->dev_addr); |
1da177e4 LT |
920 | usb_set_intfdata(intf, catc); |
921 | ||
922 | SET_NETDEV_DEV(netdev, &intf->dev); | |
d4114914 BH |
923 | ret = register_netdev(netdev); |
924 | if (ret) | |
925 | goto fail_clear_intfdata; | |
926 | ||
1da177e4 | 927 | return 0; |
d4114914 BH |
928 | |
929 | fail_clear_intfdata: | |
930 | usb_set_intfdata(intf, NULL); | |
931 | fail_free: | |
932 | usb_free_urb(catc->ctrl_urb); | |
933 | usb_free_urb(catc->tx_urb); | |
934 | usb_free_urb(catc->rx_urb); | |
935 | usb_free_urb(catc->irq_urb); | |
936 | free_netdev(netdev); | |
937 | return ret; | |
1da177e4 LT |
938 | } |
939 | ||
940 | static void catc_disconnect(struct usb_interface *intf) | |
941 | { | |
942 | struct catc *catc = usb_get_intfdata(intf); | |
943 | ||
944 | usb_set_intfdata(intf, NULL); | |
945 | if (catc) { | |
946 | unregister_netdev(catc->netdev); | |
947 | usb_free_urb(catc->ctrl_urb); | |
948 | usb_free_urb(catc->tx_urb); | |
949 | usb_free_urb(catc->rx_urb); | |
950 | usb_free_urb(catc->irq_urb); | |
951 | free_netdev(catc->netdev); | |
952 | } | |
953 | } | |
954 | ||
955 | /* | |
956 | * Module functions and tables. | |
957 | */ | |
958 | ||
959 | static struct usb_device_id catc_id_table [] = { | |
960 | { USB_DEVICE(0x0423, 0xa) }, /* CATC Netmate, Belkin F5U011 */ | |
961 | { USB_DEVICE(0x0423, 0xc) }, /* CATC Netmate II, Belkin F5U111 */ | |
962 | { USB_DEVICE(0x08d1, 0x1) }, /* smartBridges smartNIC */ | |
963 | { } | |
964 | }; | |
965 | ||
966 | MODULE_DEVICE_TABLE(usb, catc_id_table); | |
967 | ||
968 | static struct usb_driver catc_driver = { | |
1da177e4 LT |
969 | .name = driver_name, |
970 | .probe = catc_probe, | |
971 | .disconnect = catc_disconnect, | |
972 | .id_table = catc_id_table, | |
e1f12eb6 | 973 | .disable_hub_initiated_lpm = 1, |
1da177e4 LT |
974 | }; |
975 | ||
d632eb1b | 976 | module_usb_driver(catc_driver); |