usb4bsd: Use NULL for pointers.
[dragonfly.git] / sys / bus / u4b / net / if_udav.c
CommitLineData
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1/* $NetBSD: if_udav.c,v 1.2 2003/09/04 15:17:38 tsutsui Exp $ */
2/* $nabe: if_udav.c,v 1.3 2003/08/21 16:57:19 nabe Exp $ */
3/* $FreeBSD$ */
4/*-
5 * Copyright (c) 2003
6 * Shingo WATANABE <nabe@nabechan.org>. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 */
33
34/*
35 * DM9601(DAVICOM USB to Ethernet MAC Controller with Integrated 10/100 PHY)
36 * The spec can be found at the following url.
37 * http://www.davicom.com.tw/big5/download/Data%20Sheet/DM9601-DS-P01-930914.pdf
38 */
39
40/*
41 * TODO:
42 * Interrupt Endpoint support
43 * External PHYs
44 */
45
12bd3c8b 46#include <sys/stdint.h>
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47#include <sys/param.h>
48#include <sys/queue.h>
49#include <sys/types.h>
50#include <sys/systm.h>
51#include <sys/kernel.h>
52#include <sys/bus.h>
53#include <sys/module.h>
54#include <sys/lock.h>
55#include <sys/mutex.h>
56#include <sys/condvar.h>
57#include <sys/sysctl.h>
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58#include <sys/unistd.h>
59#include <sys/callout.h>
60#include <sys/malloc.h>
61#include <sys/priv.h>
62
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63#include <net/ifq_var.h>
64
65#include <bus/u4b/usb.h>
66#include <bus/u4b/usbdi.h>
67#include <bus/u4b/usbdi_util.h>
68#include <bus/u4b/usbdevs.h>
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69
70#define USB_DEBUG_VAR udav_debug
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71#include <bus/u4b/usb_debug.h>
72#include <bus/u4b/usb_process.h>
12bd3c8b 73
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74#include <bus/u4b/net/usb_ethernet.h>
75#include <bus/u4b/net/if_udavreg.h>
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76
77/* prototypes */
78
79static device_probe_t udav_probe;
80static device_attach_t udav_attach;
81static device_detach_t udav_detach;
82
83static usb_callback_t udav_bulk_write_callback;
84static usb_callback_t udav_bulk_read_callback;
85static usb_callback_t udav_intr_callback;
86
87static uether_fn_t udav_attach_post;
88static uether_fn_t udav_init;
89static uether_fn_t udav_stop;
90static uether_fn_t udav_start;
91static uether_fn_t udav_tick;
92static uether_fn_t udav_setmulti;
93static uether_fn_t udav_setpromisc;
94
95static int udav_csr_read(struct udav_softc *, uint16_t, void *, int);
96static int udav_csr_write(struct udav_softc *, uint16_t, void *, int);
97static uint8_t udav_csr_read1(struct udav_softc *, uint16_t);
98static int udav_csr_write1(struct udav_softc *, uint16_t, uint8_t);
99static void udav_reset(struct udav_softc *);
100static int udav_ifmedia_upd(struct ifnet *);
101static void udav_ifmedia_status(struct ifnet *, struct ifmediareq *);
102
103static miibus_readreg_t udav_miibus_readreg;
104static miibus_writereg_t udav_miibus_writereg;
105static miibus_statchg_t udav_miibus_statchg;
106
107static const struct usb_config udav_config[UDAV_N_TRANSFER] = {
108
109 [UDAV_BULK_DT_WR] = {
110 .type = UE_BULK,
111 .endpoint = UE_ADDR_ANY,
112 .direction = UE_DIR_OUT,
113 .bufsize = (MCLBYTES + 2),
114 .flags = {.pipe_bof = 1,.force_short_xfer = 1,},
115 .callback = udav_bulk_write_callback,
116 .timeout = 10000, /* 10 seconds */
117 },
118
119 [UDAV_BULK_DT_RD] = {
120 .type = UE_BULK,
121 .endpoint = UE_ADDR_ANY,
122 .direction = UE_DIR_IN,
123 .bufsize = (MCLBYTES + 3),
124 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
125 .callback = udav_bulk_read_callback,
126 .timeout = 0, /* no timeout */
127 },
128
129 [UDAV_INTR_DT_RD] = {
130 .type = UE_INTERRUPT,
131 .endpoint = UE_ADDR_ANY,
132 .direction = UE_DIR_IN,
133 .flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
134 .bufsize = 0, /* use wMaxPacketSize */
135 .callback = udav_intr_callback,
136 },
137};
138
139static device_method_t udav_methods[] = {
140 /* Device interface */
141 DEVMETHOD(device_probe, udav_probe),
142 DEVMETHOD(device_attach, udav_attach),
143 DEVMETHOD(device_detach, udav_detach),
144
145 /* MII interface */
146 DEVMETHOD(miibus_readreg, udav_miibus_readreg),
147 DEVMETHOD(miibus_writereg, udav_miibus_writereg),
148 DEVMETHOD(miibus_statchg, udav_miibus_statchg),
149
b946173a 150 {0, 0}
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151};
152
153static driver_t udav_driver = {
154 .name = "udav",
155 .methods = udav_methods,
156 .size = sizeof(struct udav_softc),
157};
158
159static devclass_t udav_devclass;
160
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161DRIVER_MODULE(udav, uhub, udav_driver, udav_devclass, NULL, NULL);
162DRIVER_MODULE(miibus, udav, miibus_driver, miibus_devclass, NULL, NULL);
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163MODULE_DEPEND(udav, uether, 1, 1, 1);
164MODULE_DEPEND(udav, usb, 1, 1, 1);
165MODULE_DEPEND(udav, ether, 1, 1, 1);
166MODULE_DEPEND(udav, miibus, 1, 1, 1);
167MODULE_VERSION(udav, 1);
168
169static const struct usb_ether_methods udav_ue_methods = {
170 .ue_attach_post = udav_attach_post,
171 .ue_start = udav_start,
172 .ue_init = udav_init,
173 .ue_stop = udav_stop,
174 .ue_tick = udav_tick,
175 .ue_setmulti = udav_setmulti,
176 .ue_setpromisc = udav_setpromisc,
177 .ue_mii_upd = udav_ifmedia_upd,
178 .ue_mii_sts = udav_ifmedia_status,
179};
180
181#ifdef USB_DEBUG
182static int udav_debug = 0;
183
184static SYSCTL_NODE(_hw_usb, OID_AUTO, udav, CTLFLAG_RW, 0, "USB udav");
185SYSCTL_INT(_hw_usb_udav, OID_AUTO, debug, CTLFLAG_RW, &udav_debug, 0,
186 "Debug level");
187#endif
188
189#define UDAV_SETBIT(sc, reg, x) \
190 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) | (x))
191
192#define UDAV_CLRBIT(sc, reg, x) \
193 udav_csr_write1(sc, reg, udav_csr_read1(sc, reg) & ~(x))
194
195static const STRUCT_USB_HOST_ID udav_devs[] = {
196 /* ShanTou DM9601 USB NIC */
197 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_DM9601, 0)},
198 /* ShanTou ST268 USB NIC */
199 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ST268, 0)},
200 /* Corega USB-TXC */
201 {USB_VPI(USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB_TXC, 0)},
202 /* ShanTou AMD8515 USB NIC */
203 {USB_VPI(USB_VENDOR_SHANTOU, USB_PRODUCT_SHANTOU_ADM8515, 0)},
204 /* Kontron AG USB Ethernet */
205 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_DM9601, 0)},
206 {USB_VPI(USB_VENDOR_KONTRON, USB_PRODUCT_KONTRON_JP1082, 0)},
207};
208
209static void
210udav_attach_post(struct usb_ether *ue)
211{
212 struct udav_softc *sc = uether_getsc(ue);
213
214 /* reset the adapter */
215 udav_reset(sc);
216
217 /* Get Ethernet Address */
218 udav_csr_read(sc, UDAV_PAR, ue->ue_eaddr, ETHER_ADDR_LEN);
219}
220
221static int
222udav_probe(device_t dev)
223{
224 struct usb_attach_arg *uaa = device_get_ivars(dev);
225
226 if (uaa->usb_mode != USB_MODE_HOST)
227 return (ENXIO);
228 if (uaa->info.bConfigIndex != UDAV_CONFIG_INDEX)
229 return (ENXIO);
230 if (uaa->info.bIfaceIndex != UDAV_IFACE_INDEX)
231 return (ENXIO);
232
233 return (usbd_lookup_id_by_uaa(udav_devs, sizeof(udav_devs), uaa));
234}
235
236static int
237udav_attach(device_t dev)
238{
239 struct usb_attach_arg *uaa = device_get_ivars(dev);
240 struct udav_softc *sc = device_get_softc(dev);
241 struct usb_ether *ue = &sc->sc_ue;
242 uint8_t iface_index;
243 int error;
244
245 sc->sc_flags = USB_GET_DRIVER_INFO(uaa);
246
247 device_set_usb_desc(dev);
248
b946173a 249 lockinit(&sc->sc_lock, device_get_nameunit(dev), 0, 0);
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250
251 iface_index = UDAV_IFACE_INDEX;
252 error = usbd_transfer_setup(uaa->device, &iface_index,
b946173a 253 sc->sc_xfer, udav_config, UDAV_N_TRANSFER, sc, &sc->sc_lock);
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254 if (error) {
255 device_printf(dev, "allocating USB transfers failed\n");
256 goto detach;
257 }
258
259 ue->ue_sc = sc;
260 ue->ue_dev = dev;
261 ue->ue_udev = uaa->device;
b946173a 262 ue->ue_lock = &sc->sc_lock;
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263 ue->ue_methods = &udav_ue_methods;
264
265 error = uether_ifattach(ue);
266 if (error) {
267 device_printf(dev, "could not attach interface\n");
268 goto detach;
269 }
270
271 return (0); /* success */
272
273detach:
274 udav_detach(dev);
275 return (ENXIO); /* failure */
276}
277
278static int
279udav_detach(device_t dev)
280{
281 struct udav_softc *sc = device_get_softc(dev);
282 struct usb_ether *ue = &sc->sc_ue;
283
284 usbd_transfer_unsetup(sc->sc_xfer, UDAV_N_TRANSFER);
285 uether_ifdetach(ue);
b946173a 286 lockuninit(&sc->sc_lock);
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287
288 return (0);
289}
290
291#if 0
292static int
293udav_mem_read(struct udav_softc *sc, uint16_t offset, void *buf,
294 int len)
295{
296 struct usb_device_request req;
297
298 len &= 0xff;
299
300 req.bmRequestType = UT_READ_VENDOR_DEVICE;
301 req.bRequest = UDAV_REQ_MEM_READ;
302 USETW(req.wValue, 0x0000);
303 USETW(req.wIndex, offset);
304 USETW(req.wLength, len);
305
306 return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
307}
308
309static int
310udav_mem_write(struct udav_softc *sc, uint16_t offset, void *buf,
311 int len)
312{
313 struct usb_device_request req;
314
315 len &= 0xff;
316
317 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
318 req.bRequest = UDAV_REQ_MEM_WRITE;
319 USETW(req.wValue, 0x0000);
320 USETW(req.wIndex, offset);
321 USETW(req.wLength, len);
322
323 return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
324}
325
326static int
327udav_mem_write1(struct udav_softc *sc, uint16_t offset,
328 uint8_t ch)
329{
330 struct usb_device_request req;
331
332 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
333 req.bRequest = UDAV_REQ_MEM_WRITE1;
334 USETW(req.wValue, ch);
335 USETW(req.wIndex, offset);
336 USETW(req.wLength, 0x0000);
337
338 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000));
339}
340#endif
341
342static int
343udav_csr_read(struct udav_softc *sc, uint16_t offset, void *buf, int len)
344{
345 struct usb_device_request req;
346
347 len &= 0xff;
348
349 req.bmRequestType = UT_READ_VENDOR_DEVICE;
350 req.bRequest = UDAV_REQ_REG_READ;
351 USETW(req.wValue, 0x0000);
352 USETW(req.wIndex, offset);
353 USETW(req.wLength, len);
354
355 return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
356}
357
358static int
359udav_csr_write(struct udav_softc *sc, uint16_t offset, void *buf, int len)
360{
361 struct usb_device_request req;
362
363 offset &= 0xff;
364 len &= 0xff;
365
366 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
367 req.bRequest = UDAV_REQ_REG_WRITE;
368 USETW(req.wValue, 0x0000);
369 USETW(req.wIndex, offset);
370 USETW(req.wLength, len);
371
372 return (uether_do_request(&sc->sc_ue, &req, buf, 1000));
373}
374
375static uint8_t
376udav_csr_read1(struct udav_softc *sc, uint16_t offset)
377{
378 uint8_t val;
379
380 udav_csr_read(sc, offset, &val, 1);
381 return (val);
382}
383
384static int
385udav_csr_write1(struct udav_softc *sc, uint16_t offset,
386 uint8_t ch)
387{
388 struct usb_device_request req;
389
390 offset &= 0xff;
391
392 req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
393 req.bRequest = UDAV_REQ_REG_WRITE1;
394 USETW(req.wValue, ch);
395 USETW(req.wIndex, offset);
396 USETW(req.wLength, 0x0000);
397
398 return (uether_do_request(&sc->sc_ue, &req, NULL, 1000));
399}
400
401static void
402udav_init(struct usb_ether *ue)
403{
404 struct udav_softc *sc = ue->ue_sc;
405 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
406
b946173a 407 UDAV_LOCK_ASSERT(sc);
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408
409 /*
410 * Cancel pending I/O
411 */
412 udav_stop(ue);
413
414 /* set MAC address */
415 udav_csr_write(sc, UDAV_PAR, IF_LLADDR(ifp), ETHER_ADDR_LEN);
416
417 /* initialize network control register */
418
419 /* disable loopback */
420 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_LBK0 | UDAV_NCR_LBK1);
421
422 /* Initialize RX control register */
423 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_DIS_LONG | UDAV_RCR_DIS_CRC);
424
425 /* load multicast filter and update promiscious mode bit */
426 udav_setpromisc(ue);
427
428 /* enable RX */
429 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_RXEN);
430
431 /* clear POWER_DOWN state of internal PHY */
432 UDAV_SETBIT(sc, UDAV_GPCR, UDAV_GPCR_GEP_CNTL0);
433 UDAV_CLRBIT(sc, UDAV_GPR, UDAV_GPR_GEPIO0);
434
435 usbd_xfer_set_stall(sc->sc_xfer[UDAV_BULK_DT_WR]);
436
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437/* XXX ifp->if_drv_flags |= IFF_DRV_RUNNING;
438 */
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439 udav_start(ue);
440}
441
442static void
443udav_reset(struct udav_softc *sc)
444{
445 int i;
446
447 /* Select PHY */
448#if 1
449 /*
450 * XXX: force select internal phy.
451 * external phy routines are not tested.
452 */
453 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY);
454#else
455 if (sc->sc_flags & UDAV_EXT_PHY)
456 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY);
457 else
458 UDAV_CLRBIT(sc, UDAV_NCR, UDAV_NCR_EXT_PHY);
459#endif
460
461 UDAV_SETBIT(sc, UDAV_NCR, UDAV_NCR_RST);
462
463 for (i = 0; i < UDAV_TX_TIMEOUT; i++) {
464 if (!(udav_csr_read1(sc, UDAV_NCR) & UDAV_NCR_RST))
465 break;
466 if (uether_pause(&sc->sc_ue, hz / 100))
467 break;
468 }
469
470 uether_pause(&sc->sc_ue, hz / 100);
471}
472
473#define UDAV_BITS 6
474static void
475udav_setmulti(struct usb_ether *ue)
476{
477 struct udav_softc *sc = ue->ue_sc;
478 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
479 struct ifmultiaddr *ifma;
480 uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
481 int h = 0;
482
b946173a 483 UDAV_LOCK_ASSERT(sc);
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484
485 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) {
486 UDAV_SETBIT(sc, UDAV_RCR, UDAV_RCR_ALL|UDAV_RCR_PRMSC);
487 return;
488 }
489
490 /* first, zot all the existing hash bits */
491 memset(hashtbl, 0x00, sizeof(hashtbl));
492 hashtbl[7] |= 0x80; /* broadcast address */
493 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl));
494
495 /* now program new ones */
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496 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
497 {
498 if (ifma->ifma_addr->sa_family != AF_LINK)
499 continue;
500 h = ether_crc32_be(LLADDR((struct sockaddr_dl *)
501 ifma->ifma_addr), ETHER_ADDR_LEN) >> 26;
502 hashtbl[h / 8] |= 1 << (h % 8);
503 }
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504
505 /* disable all multicast */
506 UDAV_CLRBIT(sc, UDAV_RCR, UDAV_RCR_ALL);
507
508 /* write hash value to the register */
509 udav_csr_write(sc, UDAV_MAR, hashtbl, sizeof(hashtbl));
510}
511
512static void
513udav_setpromisc(struct usb_ether *ue)
514{
515 struct udav_softc *sc = ue->ue_sc;
516 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
517 uint8_t rxmode;
518
519 rxmode = udav_csr_read1(sc, UDAV_RCR);
520 rxmode &= ~(UDAV_RCR_ALL | UDAV_RCR_PRMSC);
521
522 if (ifp->if_flags & IFF_PROMISC)
523 rxmode |= UDAV_RCR_ALL | UDAV_RCR_PRMSC;
524 else if (ifp->if_flags & IFF_ALLMULTI)
525 rxmode |= UDAV_RCR_ALL;
526
527 /* write new mode bits */
528 udav_csr_write1(sc, UDAV_RCR, rxmode);
529}
530
531static void
532udav_start(struct usb_ether *ue)
533{
534 struct udav_softc *sc = ue->ue_sc;
535
536 /*
537 * start the USB transfers, if not already started:
538 */
539 usbd_transfer_start(sc->sc_xfer[UDAV_INTR_DT_RD]);
540 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_RD]);
541 usbd_transfer_start(sc->sc_xfer[UDAV_BULK_DT_WR]);
542}
543
544static void
545udav_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
546{
547 struct udav_softc *sc = usbd_xfer_softc(xfer);
548 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
549 struct usb_page_cache *pc;
550 struct mbuf *m;
551 int extra_len;
552 int temp_len;
553 uint8_t buf[2];
554
555 switch (USB_GET_STATE(xfer)) {
556 case USB_ST_TRANSFERRED:
557 DPRINTFN(11, "transfer complete\n");
558 ifp->if_opackets++;
559
560 /* FALLTHROUGH */
561 case USB_ST_SETUP:
562tr_setup:
563 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0) {
564 /*
565 * don't send anything if there is no link !
566 */
567 return;
568 }
b946173a 569 m = ifq_dequeue(&ifp->if_snd, NULL);
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570
571 if (m == NULL)
572 return;
573 if (m->m_pkthdr.len > MCLBYTES)
574 m->m_pkthdr.len = MCLBYTES;
575 if (m->m_pkthdr.len < UDAV_MIN_FRAME_LEN) {
576 extra_len = UDAV_MIN_FRAME_LEN - m->m_pkthdr.len;
577 } else {
578 extra_len = 0;
579 }
580
581 temp_len = (m->m_pkthdr.len + extra_len);
582
583 /*
584 * the frame length is specified in the first 2 bytes of the
585 * buffer
586 */
587 buf[0] = (uint8_t)(temp_len);
588 buf[1] = (uint8_t)(temp_len >> 8);
589
590 temp_len += 2;
591
592 pc = usbd_xfer_get_frame(xfer, 0);
593 usbd_copy_in(pc, 0, buf, 2);
594 usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len);
595
596 if (extra_len)
597 usbd_frame_zero(pc, temp_len - extra_len, extra_len);
598 /*
599 * if there's a BPF listener, bounce a copy
600 * of this frame to him:
601 */
602 BPF_MTAP(ifp, m);
603
604 m_freem(m);
605
606 usbd_xfer_set_frame_len(xfer, 0, temp_len);
607 usbd_transfer_submit(xfer);
608 return;
609
610 default: /* Error */
611 DPRINTFN(11, "transfer error, %s\n",
612 usbd_errstr(error));
613
614 ifp->if_oerrors++;
615
616 if (error != USB_ERR_CANCELLED) {
617 /* try to clear stall first */
618 usbd_xfer_set_stall(xfer);
619 goto tr_setup;
620 }
621 return;
622 }
623}
624
625static void
626udav_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
627{
628 struct udav_softc *sc = usbd_xfer_softc(xfer);
629 struct usb_ether *ue = &sc->sc_ue;
630 struct ifnet *ifp = uether_getifp(ue);
631 struct usb_page_cache *pc;
632 struct udav_rxpkt stat;
633 int len;
634 int actlen;
635
636 usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
637
638 switch (USB_GET_STATE(xfer)) {
639 case USB_ST_TRANSFERRED:
640
641 if (actlen < sizeof(stat) + ETHER_CRC_LEN) {
642 ifp->if_ierrors++;
643 goto tr_setup;
644 }
645 pc = usbd_xfer_get_frame(xfer, 0);
646 usbd_copy_out(pc, 0, &stat, sizeof(stat));
647 actlen -= sizeof(stat);
648 len = min(actlen, le16toh(stat.pktlen));
649 len -= ETHER_CRC_LEN;
650
651 if (stat.rxstat & UDAV_RSR_LCS) {
652 ifp->if_collisions++;
653 goto tr_setup;
654 }
655 if (stat.rxstat & UDAV_RSR_ERR) {
656 ifp->if_ierrors++;
657 goto tr_setup;
658 }
659 uether_rxbuf(ue, pc, sizeof(stat), len);
660 /* FALLTHROUGH */
661 case USB_ST_SETUP:
662tr_setup:
663 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
664 usbd_transfer_submit(xfer);
665 uether_rxflush(ue);
666 return;
667
668 default: /* Error */
669 DPRINTF("bulk read error, %s\n",
670 usbd_errstr(error));
671
672 if (error != USB_ERR_CANCELLED) {
673 /* try to clear stall first */
674 usbd_xfer_set_stall(xfer);
675 goto tr_setup;
676 }
677 return;
678 }
679}
680
681static void
682udav_intr_callback(struct usb_xfer *xfer, usb_error_t error)
683{
684 switch (USB_GET_STATE(xfer)) {
685 case USB_ST_TRANSFERRED:
686 case USB_ST_SETUP:
687tr_setup:
688 usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
689 usbd_transfer_submit(xfer);
690 return;
691
692 default: /* Error */
693 if (error != USB_ERR_CANCELLED) {
694 /* try to clear stall first */
695 usbd_xfer_set_stall(xfer);
696 goto tr_setup;
697 }
698 return;
699 }
700}
701
702static void
703udav_stop(struct usb_ether *ue)
704{
705 struct udav_softc *sc = ue->ue_sc;
cb652d71 706#if 0 /* XXX */
12bd3c8b 707 struct ifnet *ifp = uether_getifp(&sc->sc_ue);
cb652d71 708#endif
12bd3c8b 709
b946173a 710 UDAV_LOCK_ASSERT(sc);
12bd3c8b 711
cb652d71 712#if 0 /* XXX */
12bd3c8b 713 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
cb652d71 714#endif
12bd3c8b
SW
715 sc->sc_flags &= ~UDAV_FLAG_LINK;
716
717 /*
718 * stop all the transfers, if not already stopped:
719 */
720 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_WR]);
721 usbd_transfer_stop(sc->sc_xfer[UDAV_BULK_DT_RD]);
722 usbd_transfer_stop(sc->sc_xfer[UDAV_INTR_DT_RD]);
723
724 udav_reset(sc);
725}
726
727static int
728udav_ifmedia_upd(struct ifnet *ifp)
729{
730 struct udav_softc *sc = ifp->if_softc;
731 struct mii_data *mii = GET_MII(sc);
732 struct mii_softc *miisc;
733
b946173a
SW
734 kprintf("ifmedia upd\n");
735
736 UDAV_LOCK_ASSERT(sc);
12bd3c8b
SW
737
738 sc->sc_flags &= ~UDAV_FLAG_LINK;
739 LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
b946173a 740 mii_phy_reset(miisc);
12bd3c8b
SW
741 mii_mediachg(mii);
742 return (0);
743}
744
745static void
746udav_ifmedia_status(struct ifnet *ifp, struct ifmediareq *ifmr)
747{
748 struct udav_softc *sc = ifp->if_softc;
749 struct mii_data *mii = GET_MII(sc);
750
b946173a
SW
751 kprintf("ifmedia status\n");
752
12bd3c8b
SW
753 UDAV_LOCK(sc);
754 mii_pollstat(mii);
755 ifmr->ifm_active = mii->mii_media_active;
756 ifmr->ifm_status = mii->mii_media_status;
757 UDAV_UNLOCK(sc);
758}
759
760static void
761udav_tick(struct usb_ether *ue)
762{
763 struct udav_softc *sc = ue->ue_sc;
764 struct mii_data *mii = GET_MII(sc);
765
b946173a 766 UDAV_LOCK_ASSERT(sc);
12bd3c8b
SW
767
768 mii_tick(mii);
769 if ((sc->sc_flags & UDAV_FLAG_LINK) == 0
770 && mii->mii_media_status & IFM_ACTIVE &&
771 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
772 sc->sc_flags |= UDAV_FLAG_LINK;
773 udav_start(ue);
774 }
775}
776
777static int
778udav_miibus_readreg(device_t dev, int phy, int reg)
779{
780 struct udav_softc *sc = device_get_softc(dev);
781 uint16_t data16;
782 uint8_t val[2];
783 int locked;
784
785 /* XXX: one PHY only for the internal PHY */
786 if (phy != 0)
787 return (0);
788
b946173a 789 locked = lockowned(&sc->sc_lock);
12bd3c8b
SW
790 if (!locked)
791 UDAV_LOCK(sc);
792
793 /* select internal PHY and set PHY register address */
794 udav_csr_write1(sc, UDAV_EPAR,
795 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK));
796
797 /* select PHY operation and start read command */
798 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRR);
799
800 /* XXX: should we wait? */
801
802 /* end read command */
803 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRR);
804
805 /* retrieve the result from data registers */
806 udav_csr_read(sc, UDAV_EPDRL, val, 2);
807
808 data16 = (val[0] | (val[1] << 8));
809
810 DPRINTFN(11, "phy=%d reg=0x%04x => 0x%04x\n",
811 phy, reg, data16);
812
813 if (!locked)
814 UDAV_UNLOCK(sc);
815 return (data16);
816}
817
818static int
819udav_miibus_writereg(device_t dev, int phy, int reg, int data)
820{
821 struct udav_softc *sc = device_get_softc(dev);
822 uint8_t val[2];
823 int locked;
824
825 /* XXX: one PHY only for the internal PHY */
826 if (phy != 0)
827 return (0);
828
b946173a 829 locked = lockowned(&sc->sc_lock);
12bd3c8b
SW
830 if (!locked)
831 UDAV_LOCK(sc);
832
833 /* select internal PHY and set PHY register address */
834 udav_csr_write1(sc, UDAV_EPAR,
835 UDAV_EPAR_PHY_ADR0 | (reg & UDAV_EPAR_EROA_MASK));
836
837 /* put the value to the data registers */
838 val[0] = (data & 0xff);
839 val[1] = (data >> 8) & 0xff;
840 udav_csr_write(sc, UDAV_EPDRL, val, 2);
841
842 /* select PHY operation and start write command */
843 udav_csr_write1(sc, UDAV_EPCR, UDAV_EPCR_EPOS | UDAV_EPCR_ERPRW);
844
845 /* XXX: should we wait? */
846
847 /* end write command */
848 UDAV_CLRBIT(sc, UDAV_EPCR, UDAV_EPCR_ERPRW);
849
850 if (!locked)
851 UDAV_UNLOCK(sc);
852 return (0);
853}
854
855static void
856udav_miibus_statchg(device_t dev)
857{
858 /* nothing to do */
859}