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source: rtems-libbsd/freebsd/sys/dev/usb/net/if_aue.c @ d145449

55-freebsd-126-freebsd-12

Last change on this file since d145449 was d145449, checked in by Christian Mauderer <Christian.Mauderer@…>, on 11/14/16 at 12:30:48
Import USB and USB WLAN from FreeBSD.
Property mode set to `100644`
File size: 27.9 KB

Line
1	#include <machine/rtems-bsd-kernel-space.h>
2
3	/*-
4	* Copyright (c) 1997, 1998, 1999, 2000
5	* Bill Paul <wpaul@ee.columbia.edu>. All rights reserved.
6	*
7	* Copyright (c) 2006
8	* Alfred Perlstein <alfred@FreeBSD.org>. All rights reserved.
9	*
10	* Redistribution and use in source and binary forms, with or without
11	* modification, are permitted provided that the following conditions
12	* are met:
13	* 1. Redistributions of source code must retain the above copyright
14	* notice, this list of conditions and the following disclaimer.
15	* 2. Redistributions in binary form must reproduce the above copyright
16	* notice, this list of conditions and the following disclaimer in the
17	* documentation and/or other materials provided with the distribution.
18	* 3. All advertising materials mentioning features or use of this software
19	* must display the following acknowledgement:
20	* This product includes software developed by Bill Paul.
21	* 4. Neither the name of the author nor the names of any co-contributors
22	* may be used to endorse or promote products derived from this software
23	* without specific prior written permission.
24	*
25	* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
26	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28	* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
29	* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30	* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33	* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
35	* THE POSSIBILITY OF SUCH DAMAGE.
36	*/
37
38	#include <sys/cdefs.h>
39	__FBSDID("$FreeBSD$");
40
41	/*
42	* ADMtek AN986 Pegasus and AN8511 Pegasus II USB to ethernet driver.
43	* Datasheet is available from http://www.admtek.com.tw.
44	*
45	* Written by Bill Paul <wpaul@ee.columbia.edu>
46	* Electrical Engineering Department
47	* Columbia University, New York City
48	*
49	* SMP locking by Alfred Perlstein <alfred@FreeBSD.org>.
50	* RED Inc.
51	*/
52
53	/*
54	* The Pegasus chip uses four USB "endpoints" to provide 10/100 ethernet
55	* support: the control endpoint for reading/writing registers, burst
56	* read endpoint for packet reception, burst write for packet transmission
57	* and one for "interrupts." The chip uses the same RX filter scheme
58	* as the other ADMtek ethernet parts: one perfect filter entry for the
59	* the station address and a 64-bit multicast hash table. The chip supports
60	* both MII and HomePNA attachments.
61	*
62	* Since the maximum data transfer speed of USB is supposed to be 12Mbps,
63	* you're never really going to get 100Mbps speeds from this device. I
64	* think the idea is to allow the device to connect to 10 or 100Mbps
65	* networks, not necessarily to provide 100Mbps performance. Also, since
66	* the controller uses an external PHY chip, it's possible that board
67	* designers might simply choose a 10Mbps PHY.
68	*
69	* Registers are accessed using uether_do_request(). Packet
70	* transfers are done using usbd_transfer() and friends.
71	*/
72
73	#include <sys/stdint.h>
74	#include <sys/stddef.h>
75	#include <rtems/bsd/sys/param.h>
76	#include <sys/queue.h>
77	#include <sys/types.h>
78	#include <sys/systm.h>
79	#include <sys/socket.h>
80	#include <sys/kernel.h>
81	#include <sys/bus.h>
82	#include <sys/module.h>
83	#include <rtems/bsd/sys/lock.h>
84	#include <sys/mutex.h>
85	#include <sys/condvar.h>
86	#include <sys/sysctl.h>
87	#include <sys/sx.h>
88	#include <rtems/bsd/sys/unistd.h>
89	#include <sys/callout.h>
90	#include <sys/malloc.h>
91	#include <sys/priv.h>
92
93	#include <net/if.h>
94	#include <net/if_var.h>
95
96	#include <dev/usb/usb.h>
97	#include <dev/usb/usbdi.h>
98	#include <dev/usb/usbdi_util.h>
99	#include <rtems/bsd/local/usbdevs.h>
100
101	#define USB_DEBUG_VAR aue_debug
102	#include <dev/usb/usb_debug.h>
103	#include <dev/usb/usb_process.h>
104
105	#include <dev/usb/net/usb_ethernet.h>
106	#include <dev/usb/net/if_auereg.h>
107
108	#ifdef USB_DEBUG
109	static int aue_debug = 0;
110
111	static SYSCTL_NODE(_hw_usb, OID_AUTO, aue, CTLFLAG_RW, 0, "USB aue");
112	SYSCTL_INT(_hw_usb_aue, OID_AUTO, debug, CTLFLAG_RWTUN, &aue_debug, 0,
113	"Debug level");
114	#endif
115
116	/*
117	* Various supported device vendors/products.
118	*/
119	static const STRUCT_USB_HOST_ID aue_devs[] = {
120	#define AUE_DEV(v,p,i) { USB_VPI(USB_VENDOR_##v, USB_PRODUCT_##v##_##p, i) }
121	AUE_DEV(3COM, 3C460B, AUE_FLAG_PII),
122	AUE_DEV(ABOCOM, DSB650TX_PNA, 0),
123	AUE_DEV(ABOCOM, UFE1000, AUE_FLAG_LSYS),
124	AUE_DEV(ABOCOM, XX10, 0),
125	AUE_DEV(ABOCOM, XX1, AUE_FLAG_PNA \| AUE_FLAG_PII),
126	AUE_DEV(ABOCOM, XX2, AUE_FLAG_PII),
127	AUE_DEV(ABOCOM, XX4, AUE_FLAG_PNA),
128	AUE_DEV(ABOCOM, XX5, AUE_FLAG_PNA),
129	AUE_DEV(ABOCOM, XX6, AUE_FLAG_PII),
130	AUE_DEV(ABOCOM, XX7, AUE_FLAG_PII),
131	AUE_DEV(ABOCOM, XX8, AUE_FLAG_PII),
132	AUE_DEV(ABOCOM, XX9, AUE_FLAG_PNA),
133	AUE_DEV(ACCTON, SS1001, AUE_FLAG_PII),
134	AUE_DEV(ACCTON, USB320_EC, 0),
135	AUE_DEV(ADMTEK, PEGASUSII_2, AUE_FLAG_PII),
136	AUE_DEV(ADMTEK, PEGASUSII_3, AUE_FLAG_PII),
137	AUE_DEV(ADMTEK, PEGASUSII_4, AUE_FLAG_PII),
138	AUE_DEV(ADMTEK, PEGASUSII, AUE_FLAG_PII),
139	AUE_DEV(ADMTEK, PEGASUS, AUE_FLAG_PNA \| AUE_FLAG_DUAL_PHY),
140	AUE_DEV(AEI, FASTETHERNET, AUE_FLAG_PII),
141	AUE_DEV(ALLIEDTELESYN, ATUSB100, AUE_FLAG_PII),
142	AUE_DEV(ATEN, UC110T, AUE_FLAG_PII),
143	AUE_DEV(BELKIN, USB2LAN, AUE_FLAG_PII),
144	AUE_DEV(BILLIONTON, USB100, 0),
145	AUE_DEV(BILLIONTON, USBE100, AUE_FLAG_PII),
146	AUE_DEV(BILLIONTON, USBEL100, 0),
147	AUE_DEV(BILLIONTON, USBLP100, AUE_FLAG_PNA),
148	AUE_DEV(COREGA, FETHER_USB_TXS, AUE_FLAG_PII),
149	AUE_DEV(COREGA, FETHER_USB_TX, 0),
150	AUE_DEV(DLINK, DSB650TX1, AUE_FLAG_LSYS),
151	AUE_DEV(DLINK, DSB650TX2, AUE_FLAG_LSYS \| AUE_FLAG_PII),
152	AUE_DEV(DLINK, DSB650TX3, AUE_FLAG_LSYS \| AUE_FLAG_PII),
153	AUE_DEV(DLINK, DSB650TX4, AUE_FLAG_LSYS \| AUE_FLAG_PII),
154	AUE_DEV(DLINK, DSB650TX_PNA, AUE_FLAG_PNA),
155	AUE_DEV(DLINK, DSB650TX, AUE_FLAG_LSYS),
156	AUE_DEV(DLINK, DSB650, AUE_FLAG_LSYS),
157	AUE_DEV(ELCON, PLAN, AUE_FLAG_PNA \| AUE_FLAG_PII),
158	AUE_DEV(ELECOM, LDUSB20, AUE_FLAG_PII),
159	AUE_DEV(ELECOM, LDUSBLTX, AUE_FLAG_PII),
160	AUE_DEV(ELECOM, LDUSBTX0, 0),
161	AUE_DEV(ELECOM, LDUSBTX1, AUE_FLAG_LSYS),
162	AUE_DEV(ELECOM, LDUSBTX2, 0),
163	AUE_DEV(ELECOM, LDUSBTX3, AUE_FLAG_LSYS),
164	AUE_DEV(ELSA, USB2ETHERNET, 0),
165	AUE_DEV(GIGABYTE, GNBR402W, 0),
166	AUE_DEV(HAWKING, UF100, AUE_FLAG_PII),
167	AUE_DEV(HP, HN210E, AUE_FLAG_PII),
168	AUE_DEV(IODATA, USBETTXS, AUE_FLAG_PII),
169	AUE_DEV(IODATA, USBETTX, 0),
170	AUE_DEV(KINGSTON, KNU101TX, 0),
171	AUE_DEV(LINKSYS, USB100H1, AUE_FLAG_LSYS \| AUE_FLAG_PNA),
172	AUE_DEV(LINKSYS, USB100TX, AUE_FLAG_LSYS),
173	AUE_DEV(LINKSYS, USB10TA, AUE_FLAG_LSYS),
174	AUE_DEV(LINKSYS, USB10TX1, AUE_FLAG_LSYS \| AUE_FLAG_PII),
175	AUE_DEV(LINKSYS, USB10TX2, AUE_FLAG_LSYS \| AUE_FLAG_PII),
176	AUE_DEV(LINKSYS, USB10T, AUE_FLAG_LSYS),
177	AUE_DEV(MELCO, LUA2TX5, AUE_FLAG_PII),
178	AUE_DEV(MELCO, LUATX1, 0),
179	AUE_DEV(MELCO, LUATX5, 0),
180	AUE_DEV(MICROSOFT, MN110, AUE_FLAG_PII),
181	AUE_DEV(NETGEAR, FA101, AUE_FLAG_PII),
182	AUE_DEV(SIEMENS, SPEEDSTREAM, AUE_FLAG_PII),
183	AUE_DEV(SIIG2, USBTOETHER, AUE_FLAG_PII),
184	AUE_DEV(SMARTBRIDGES, SMARTNIC, AUE_FLAG_PII),
185	AUE_DEV(SMC, 2202USB, 0),
186	AUE_DEV(SMC, 2206USB, AUE_FLAG_PII),
187	AUE_DEV(SOHOWARE, NUB100, 0),
188	AUE_DEV(SOHOWARE, NUB110, AUE_FLAG_PII),
189	#undef AUE_DEV
190	};
191
192	/* prototypes */
193
194	static device_probe_t aue_probe;
195	static device_attach_t aue_attach;
196	static device_detach_t aue_detach;
197	static miibus_readreg_t aue_miibus_readreg;
198	static miibus_writereg_t aue_miibus_writereg;
199	static miibus_statchg_t aue_miibus_statchg;
200
201	static usb_callback_t aue_intr_callback;
202	static usb_callback_t aue_bulk_read_callback;
203	static usb_callback_t aue_bulk_write_callback;
204
205	static uether_fn_t aue_attach_post;
206	static uether_fn_t aue_init;
207	static uether_fn_t aue_stop;
208	static uether_fn_t aue_start;
209	static uether_fn_t aue_tick;
210	static uether_fn_t aue_setmulti;
211	static uether_fn_t aue_setpromisc;
212
213	static uint8_t aue_csr_read_1(struct aue_softc *, uint16_t);
214	static uint16_t aue_csr_read_2(struct aue_softc *, uint16_t);
215	static void aue_csr_write_1(struct aue_softc *, uint16_t, uint8_t);
216	static void aue_csr_write_2(struct aue_softc *, uint16_t, uint16_t);
217	static uint16_t aue_eeprom_getword(struct aue_softc *, int);
218	static void aue_reset(struct aue_softc *);
219	static void aue_reset_pegasus_II(struct aue_softc *);
220
221	static int aue_ifmedia_upd(struct ifnet *);
222	static void aue_ifmedia_sts(struct ifnet , struct ifmediareq );
223
224	static const struct usb_config aue_config[AUE_N_TRANSFER] = {
225
226	[AUE_BULK_DT_WR] = {
227	.type = UE_BULK,
228	.endpoint = UE_ADDR_ANY,
229	.direction = UE_DIR_OUT,
230	.bufsize = (MCLBYTES + 2),
231	.flags = {.pipe_bof = 1,.force_short_xfer = 1,},
232	.callback = aue_bulk_write_callback,
233	.timeout = 10000, /* 10 seconds */
234	},
235
236	[AUE_BULK_DT_RD] = {
237	.type = UE_BULK,
238	.endpoint = UE_ADDR_ANY,
239	.direction = UE_DIR_IN,
240	.bufsize = (MCLBYTES + 4 + ETHER_CRC_LEN),
241	.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
242	.callback = aue_bulk_read_callback,
243	},
244
245	[AUE_INTR_DT_RD] = {
246	.type = UE_INTERRUPT,
247	.endpoint = UE_ADDR_ANY,
248	.direction = UE_DIR_IN,
249	.flags = {.pipe_bof = 1,.short_xfer_ok = 1,},
250	.bufsize = 0, /* use wMaxPacketSize */
251	.callback = aue_intr_callback,
252	},
253	};
254
255	static device_method_t aue_methods[] = {
256	/* Device interface */
257	DEVMETHOD(device_probe, aue_probe),
258	DEVMETHOD(device_attach, aue_attach),
259	DEVMETHOD(device_detach, aue_detach),
260
261	/* MII interface */
262	DEVMETHOD(miibus_readreg, aue_miibus_readreg),
263	DEVMETHOD(miibus_writereg, aue_miibus_writereg),
264	DEVMETHOD(miibus_statchg, aue_miibus_statchg),
265
266	DEVMETHOD_END
267	};
268
269	static driver_t aue_driver = {
270	.name = "aue",
271	.methods = aue_methods,
272	.size = sizeof(struct aue_softc)
273	};
274
275	static devclass_t aue_devclass;
276
277	DRIVER_MODULE(aue, uhub, aue_driver, aue_devclass, NULL, 0);
278	DRIVER_MODULE(miibus, aue, miibus_driver, miibus_devclass, 0, 0);
279	MODULE_DEPEND(aue, uether, 1, 1, 1);
280	MODULE_DEPEND(aue, usb, 1, 1, 1);
281	MODULE_DEPEND(aue, ether, 1, 1, 1);
282	MODULE_DEPEND(aue, miibus, 1, 1, 1);
283	MODULE_VERSION(aue, 1);
284	USB_PNP_HOST_INFO(aue_devs);
285
286	static const struct usb_ether_methods aue_ue_methods = {
287	.ue_attach_post = aue_attach_post,
288	.ue_start = aue_start,
289	.ue_init = aue_init,
290	.ue_stop = aue_stop,
291	.ue_tick = aue_tick,
292	.ue_setmulti = aue_setmulti,
293	.ue_setpromisc = aue_setpromisc,
294	.ue_mii_upd = aue_ifmedia_upd,
295	.ue_mii_sts = aue_ifmedia_sts,
296	};
297
298	#define AUE_SETBIT(sc, reg, x) \
299	aue_csr_write_1(sc, reg, aue_csr_read_1(sc, reg) \| (x))
300
301	#define AUE_CLRBIT(sc, reg, x) \
302	aue_csr_write_1(sc, reg, aue_csr_read_1(sc, reg) & ~(x))
303
304	static uint8_t
305	aue_csr_read_1(struct aue_softc *sc, uint16_t reg)
306	{
307	struct usb_device_request req;
308	usb_error_t err;
309	uint8_t val;
310
311	req.bmRequestType = UT_READ_VENDOR_DEVICE;
312	req.bRequest = AUE_UR_READREG;
313	USETW(req.wValue, 0);
314	USETW(req.wIndex, reg);
315	USETW(req.wLength, 1);
316
317	err = uether_do_request(&sc->sc_ue, &req, &val, 1000);
318	if (err)
319	return (0);
320	return (val);
321	}
322
323	static uint16_t
324	aue_csr_read_2(struct aue_softc *sc, uint16_t reg)
325	{
326	struct usb_device_request req;
327	usb_error_t err;
328	uint16_t val;
329
330	req.bmRequestType = UT_READ_VENDOR_DEVICE;
331	req.bRequest = AUE_UR_READREG;
332	USETW(req.wValue, 0);
333	USETW(req.wIndex, reg);
334	USETW(req.wLength, 2);
335
336	err = uether_do_request(&sc->sc_ue, &req, &val, 1000);
337	if (err)
338	return (0);
339	return (le16toh(val));
340	}
341
342	static void
343	aue_csr_write_1(struct aue_softc *sc, uint16_t reg, uint8_t val)
344	{
345	struct usb_device_request req;
346
347	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
348	req.bRequest = AUE_UR_WRITEREG;
349	req.wValue[0] = val;
350	req.wValue[1] = 0;
351	USETW(req.wIndex, reg);
352	USETW(req.wLength, 1);
353
354	if (uether_do_request(&sc->sc_ue, &req, &val, 1000)) {
355	/* error ignored */
356	}
357	}
358
359	static void
360	aue_csr_write_2(struct aue_softc *sc, uint16_t reg, uint16_t val)
361	{
362	struct usb_device_request req;
363
364	req.bmRequestType = UT_WRITE_VENDOR_DEVICE;
365	req.bRequest = AUE_UR_WRITEREG;
366	USETW(req.wValue, val);
367	USETW(req.wIndex, reg);
368	USETW(req.wLength, 2);
369
370	val = htole16(val);
371
372	if (uether_do_request(&sc->sc_ue, &req, &val, 1000)) {
373	/* error ignored */
374	}
375	}
376
377	/*
378	* Read a word of data stored in the EEPROM at address 'addr.'
379	*/
380	static uint16_t
381	aue_eeprom_getword(struct aue_softc *sc, int addr)
382	{
383	int i;
384
385	aue_csr_write_1(sc, AUE_EE_REG, addr);
386	aue_csr_write_1(sc, AUE_EE_CTL, AUE_EECTL_READ);
387
388	for (i = 0; i != AUE_TIMEOUT; i++) {
389	if (aue_csr_read_1(sc, AUE_EE_CTL) & AUE_EECTL_DONE)
390	break;
391	if (uether_pause(&sc->sc_ue, hz / 100))
392	break;
393	}
394
395	if (i == AUE_TIMEOUT)
396	device_printf(sc->sc_ue.ue_dev, "EEPROM read timed out\n");
397
398	return (aue_csr_read_2(sc, AUE_EE_DATA));
399	}
400
401	/*
402	* Read station address(offset 0) from the EEPROM.
403	*/
404	static void
405	aue_read_mac(struct aue_softc sc, uint8_t eaddr)
406	{
407	int i, offset;
408	uint16_t word;
409
410	for (i = 0, offset = 0; i < ETHER_ADDR_LEN / 2; i++) {
411	word = aue_eeprom_getword(sc, offset + i);
412	eaddr[i * 2] = (uint8_t)word;
413	eaddr[i * 2 + 1] = (uint8_t)(word >> 8);
414	}
415	}
416
417	static int
418	aue_miibus_readreg(device_t dev, int phy, int reg)
419	{
420	struct aue_softc *sc = device_get_softc(dev);
421	int i, locked;
422	uint16_t val = 0;
423
424	locked = mtx_owned(&sc->sc_mtx);
425	if (!locked)
426	AUE_LOCK(sc);
427
428	/*
429	* The Am79C901 HomePNA PHY actually contains two transceivers: a 1Mbps
430	* HomePNA PHY and a 10Mbps full/half duplex ethernet PHY with NWAY
431	* autoneg. However in the ADMtek adapter, only the 1Mbps PHY is
432	* actually connected to anything, so we ignore the 10Mbps one. It
433	* happens to be configured for MII address 3, so we filter that out.
434	*/
435	if (sc->sc_flags & AUE_FLAG_DUAL_PHY) {
436	if (phy == 3)
437	goto done;
438	#if 0
439	if (phy != 1)
440	goto done;
441	#endif
442	}
443	aue_csr_write_1(sc, AUE_PHY_ADDR, phy);
444	aue_csr_write_1(sc, AUE_PHY_CTL, reg \| AUE_PHYCTL_READ);
445
446	for (i = 0; i != AUE_TIMEOUT; i++) {
447	if (aue_csr_read_1(sc, AUE_PHY_CTL) & AUE_PHYCTL_DONE)
448	break;
449	if (uether_pause(&sc->sc_ue, hz / 100))
450	break;
451	}
452
453	if (i == AUE_TIMEOUT)
454	device_printf(sc->sc_ue.ue_dev, "MII read timed out\n");
455
456	val = aue_csr_read_2(sc, AUE_PHY_DATA);
457
458	done:
459	if (!locked)
460	AUE_UNLOCK(sc);
461	return (val);
462	}
463
464	static int
465	aue_miibus_writereg(device_t dev, int phy, int reg, int data)
466	{
467	struct aue_softc *sc = device_get_softc(dev);
468	int i;
469	int locked;
470
471	if (phy == 3)
472	return (0);
473
474	locked = mtx_owned(&sc->sc_mtx);
475	if (!locked)
476	AUE_LOCK(sc);
477
478	aue_csr_write_2(sc, AUE_PHY_DATA, data);
479	aue_csr_write_1(sc, AUE_PHY_ADDR, phy);
480	aue_csr_write_1(sc, AUE_PHY_CTL, reg \| AUE_PHYCTL_WRITE);
481
482	for (i = 0; i != AUE_TIMEOUT; i++) {
483	if (aue_csr_read_1(sc, AUE_PHY_CTL) & AUE_PHYCTL_DONE)
484	break;
485	if (uether_pause(&sc->sc_ue, hz / 100))
486	break;
487	}
488
489	if (i == AUE_TIMEOUT)
490	device_printf(sc->sc_ue.ue_dev, "MII write timed out\n");
491
492	if (!locked)
493	AUE_UNLOCK(sc);
494	return (0);
495	}
496
497	static void
498	aue_miibus_statchg(device_t dev)
499	{
500	struct aue_softc *sc = device_get_softc(dev);
501	struct mii_data *mii = GET_MII(sc);
502	int locked;
503
504	locked = mtx_owned(&sc->sc_mtx);
505	if (!locked)
506	AUE_LOCK(sc);
507
508	AUE_CLRBIT(sc, AUE_CTL0, AUE_CTL0_RX_ENB \| AUE_CTL0_TX_ENB);
509	if (IFM_SUBTYPE(mii->mii_media_active) == IFM_100_TX)
510	AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_SPEEDSEL);
511	else
512	AUE_CLRBIT(sc, AUE_CTL1, AUE_CTL1_SPEEDSEL);
513
514	if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX)
515	AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_DUPLEX);
516	else
517	AUE_CLRBIT(sc, AUE_CTL1, AUE_CTL1_DUPLEX);
518
519	AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_RX_ENB \| AUE_CTL0_TX_ENB);
520
521	/*
522	* Set the LED modes on the LinkSys adapter.
523	* This turns on the 'dual link LED' bin in the auxmode
524	* register of the Broadcom PHY.
525	*/
526	if (sc->sc_flags & AUE_FLAG_LSYS) {
527	uint16_t auxmode;
528
529	auxmode = aue_miibus_readreg(dev, 0, 0x1b);
530	aue_miibus_writereg(dev, 0, 0x1b, auxmode \| 0x04);
531	}
532	if (!locked)
533	AUE_UNLOCK(sc);
534	}
535
536	#define AUE_BITS 6
537	static void
538	aue_setmulti(struct usb_ether *ue)
539	{
540	struct aue_softc *sc = uether_getsc(ue);
541	struct ifnet *ifp = uether_getifp(ue);
542	struct ifmultiaddr *ifma;
543	uint32_t h = 0;
544	uint32_t i;
545	uint8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
546
547	AUE_LOCK_ASSERT(sc, MA_OWNED);
548
549	if (ifp->if_flags & IFF_ALLMULTI \|\| ifp->if_flags & IFF_PROMISC) {
550	AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_ALLMULTI);
551	return;
552	}
553
554	AUE_CLRBIT(sc, AUE_CTL0, AUE_CTL0_ALLMULTI);
555
556	/* now program new ones */
557	if_maddr_rlock(ifp);
558	TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
559	if (ifma->ifma_addr->sa_family != AF_LINK)
560	continue;
561	h = ether_crc32_le(LLADDR((struct sockaddr_dl *)
562	ifma->ifma_addr), ETHER_ADDR_LEN) & ((1 << AUE_BITS) - 1);
563	hashtbl[(h >> 3)] \|= 1 << (h & 0x7);
564	}
565	if_maddr_runlock(ifp);
566
567	/* write the hashtable */
568	for (i = 0; i != 8; i++)
569	aue_csr_write_1(sc, AUE_MAR0 + i, hashtbl[i]);
570	}
571
572	static void
573	aue_reset_pegasus_II(struct aue_softc *sc)
574	{
575	/* Magic constants taken from Linux driver. */
576	aue_csr_write_1(sc, AUE_REG_1D, 0);
577	aue_csr_write_1(sc, AUE_REG_7B, 2);
578	#if 0
579	if ((sc->sc_flags & HAS_HOME_PNA) && mii_mode)
580	aue_csr_write_1(sc, AUE_REG_81, 6);
581	else
582	#endif
583	aue_csr_write_1(sc, AUE_REG_81, 2);
584	}
585
586	static void
587	aue_reset(struct aue_softc *sc)
588	{
589	int i;
590
591	AUE_SETBIT(sc, AUE_CTL1, AUE_CTL1_RESETMAC);
592
593	for (i = 0; i != AUE_TIMEOUT; i++) {
594	if (!(aue_csr_read_1(sc, AUE_CTL1) & AUE_CTL1_RESETMAC))
595	break;
596	if (uether_pause(&sc->sc_ue, hz / 100))
597	break;
598	}
599
600	if (i == AUE_TIMEOUT)
601	device_printf(sc->sc_ue.ue_dev, "reset failed\n");
602
603	/*
604	* The PHY(s) attached to the Pegasus chip may be held
605	* in reset until we flip on the GPIO outputs. Make sure
606	* to set the GPIO pins high so that the PHY(s) will
607	* be enabled.
608	*
609	* NOTE: We used to force all of the GPIO pins low first and then
610	* enable the ones we want. This has been changed to better
611	* match the ADMtek's reference design to avoid setting the
612	* power-down configuration line of the PHY at the same time
613	* it is reset.
614	*/
615	aue_csr_write_1(sc, AUE_GPIO0, AUE_GPIO_SEL0\|AUE_GPIO_SEL1);
616	aue_csr_write_1(sc, AUE_GPIO0, AUE_GPIO_SEL0\|AUE_GPIO_SEL1\|AUE_GPIO_OUT0);
617
618	if (sc->sc_flags & AUE_FLAG_LSYS) {
619	/* Grrr. LinkSys has to be different from everyone else. */
620	aue_csr_write_1(sc, AUE_GPIO0, AUE_GPIO_SEL0\|AUE_GPIO_SEL1);
621	aue_csr_write_1(sc, AUE_GPIO0,
622	AUE_GPIO_SEL0\|AUE_GPIO_SEL1\|AUE_GPIO_OUT0);
623	}
624	if (sc->sc_flags & AUE_FLAG_PII)
625	aue_reset_pegasus_II(sc);
626
627	/* Wait a little while for the chip to get its brains in order: */
628	uether_pause(&sc->sc_ue, hz / 100);
629	}
630
631	static void
632	aue_attach_post(struct usb_ether *ue)
633	{
634	struct aue_softc *sc = uether_getsc(ue);
635
636	/* reset the adapter */
637	aue_reset(sc);
638
639	/* get station address from the EEPROM */
640	aue_read_mac(sc, ue->ue_eaddr);
641	}
642
643	/*
644	* Probe for a Pegasus chip.
645	*/
646	static int
647	aue_probe(device_t dev)
648	{
649	struct usb_attach_arg *uaa = device_get_ivars(dev);
650
651	if (uaa->usb_mode != USB_MODE_HOST)
652	return (ENXIO);
653	if (uaa->info.bConfigIndex != AUE_CONFIG_INDEX)
654	return (ENXIO);
655	if (uaa->info.bIfaceIndex != AUE_IFACE_IDX)
656	return (ENXIO);
657	/*
658	* Belkin USB Bluetooth dongles of the F8T012xx1 model series conflict
659	* with older Belkin USB2LAN adapters. Skip if_aue if we detect one of
660	* the devices that look like Bluetooth adapters.
661	*/
662	if (uaa->info.idVendor == USB_VENDOR_BELKIN &&
663	uaa->info.idProduct == USB_PRODUCT_BELKIN_F8T012 &&
664	uaa->info.bcdDevice == 0x0413)
665	return (ENXIO);
666
667	return (usbd_lookup_id_by_uaa(aue_devs, sizeof(aue_devs), uaa));
668	}
669
670	/*
671	* Attach the interface. Allocate softc structures, do ifmedia
672	* setup and ethernet/BPF attach.
673	*/
674	static int
675	aue_attach(device_t dev)
676	{
677	struct usb_attach_arg *uaa = device_get_ivars(dev);
678	struct aue_softc *sc = device_get_softc(dev);
679	struct usb_ether *ue = &sc->sc_ue;
680	uint8_t iface_index;
681	int error;
682
683	sc->sc_flags = USB_GET_DRIVER_INFO(uaa);
684
685	if (uaa->info.bcdDevice >= 0x0201) {
686	/* XXX currently undocumented */
687	sc->sc_flags \|= AUE_FLAG_VER_2;
688	}
689
690	device_set_usb_desc(dev);
691	mtx_init(&sc->sc_mtx, device_get_nameunit(dev), NULL, MTX_DEF);
692
693	iface_index = AUE_IFACE_IDX;
694	error = usbd_transfer_setup(uaa->device, &iface_index,
695	sc->sc_xfer, aue_config, AUE_N_TRANSFER,
696	sc, &sc->sc_mtx);
697	if (error) {
698	device_printf(dev, "allocating USB transfers failed\n");
699	goto detach;
700	}
701
702	ue->ue_sc = sc;
703	ue->ue_dev = dev;
704	ue->ue_udev = uaa->device;
705	ue->ue_mtx = &sc->sc_mtx;
706	ue->ue_methods = &aue_ue_methods;
707
708	error = uether_ifattach(ue);
709	if (error) {
710	device_printf(dev, "could not attach interface\n");
711	goto detach;
712	}
713	return (0); /* success */
714
715	detach:
716	aue_detach(dev);
717	return (ENXIO); /* failure */
718	}
719
720	static int
721	aue_detach(device_t dev)
722	{
723	struct aue_softc *sc = device_get_softc(dev);
724	struct usb_ether *ue = &sc->sc_ue;
725
726	usbd_transfer_unsetup(sc->sc_xfer, AUE_N_TRANSFER);
727	uether_ifdetach(ue);
728	mtx_destroy(&sc->sc_mtx);
729
730	return (0);
731	}
732
733	static void
734	aue_intr_callback(struct usb_xfer *xfer, usb_error_t error)
735	{
736	struct aue_softc *sc = usbd_xfer_softc(xfer);
737	struct ifnet *ifp = uether_getifp(&sc->sc_ue);
738	struct aue_intrpkt pkt;
739	struct usb_page_cache *pc;
740	int actlen;
741
742	usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
743
744	switch (USB_GET_STATE(xfer)) {
745	case USB_ST_TRANSFERRED:
746
747	if ((ifp->if_drv_flags & IFF_DRV_RUNNING) &&
748	actlen >= (int)sizeof(pkt)) {
749
750	pc = usbd_xfer_get_frame(xfer, 0);
751	usbd_copy_out(pc, 0, &pkt, sizeof(pkt));
752
753	if (pkt.aue_txstat0)
754	if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
755	if (pkt.aue_txstat0 & (AUE_TXSTAT0_LATECOLL \|
756	AUE_TXSTAT0_EXCESSCOLL))
757	if_inc_counter(ifp, IFCOUNTER_COLLISIONS, 1);
758	}
759	/* FALLTHROUGH */
760	case USB_ST_SETUP:
761	tr_setup:
762	usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
763	usbd_transfer_submit(xfer);
764	return;
765
766	default: /* Error */
767	if (error != USB_ERR_CANCELLED) {
768	/* try to clear stall first */
769	usbd_xfer_set_stall(xfer);
770	goto tr_setup;
771	}
772	return;
773	}
774	}
775
776	static void
777	aue_bulk_read_callback(struct usb_xfer *xfer, usb_error_t error)
778	{
779	struct aue_softc *sc = usbd_xfer_softc(xfer);
780	struct usb_ether *ue = &sc->sc_ue;
781	struct ifnet *ifp = uether_getifp(ue);
782	struct aue_rxpkt stat;
783	struct usb_page_cache *pc;
784	int actlen;
785
786	usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
787	pc = usbd_xfer_get_frame(xfer, 0);
788
789	switch (USB_GET_STATE(xfer)) {
790	case USB_ST_TRANSFERRED:
791	DPRINTFN(11, "received %d bytes\n", actlen);
792
793	if (sc->sc_flags & AUE_FLAG_VER_2) {
794
795	if (actlen == 0) {
796	if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
797	goto tr_setup;
798	}
799	} else {
800
801	if (actlen <= (int)(sizeof(stat) + ETHER_CRC_LEN)) {
802	if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
803	goto tr_setup;
804	}
805	usbd_copy_out(pc, actlen - sizeof(stat), &stat,
806	sizeof(stat));
807
808	/*
809	* turn off all the non-error bits in the rx status
810	* word:
811	*/
812	stat.aue_rxstat &= AUE_RXSTAT_MASK;
813	if (stat.aue_rxstat) {
814	if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
815	goto tr_setup;
816	}
817	/* No errors; receive the packet. */
818	actlen -= (sizeof(stat) + ETHER_CRC_LEN);
819	}
820	uether_rxbuf(ue, pc, 0, actlen);
821
822	/* FALLTHROUGH */
823	case USB_ST_SETUP:
824	tr_setup:
825	usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
826	usbd_transfer_submit(xfer);
827	uether_rxflush(ue);
828	return;
829
830	default: /* Error */
831	DPRINTF("bulk read error, %s\n",
832	usbd_errstr(error));
833
834	if (error != USB_ERR_CANCELLED) {
835	/* try to clear stall first */
836	usbd_xfer_set_stall(xfer);
837	goto tr_setup;
838	}
839	return;
840	}
841	}
842
843	static void
844	aue_bulk_write_callback(struct usb_xfer *xfer, usb_error_t error)
845	{
846	struct aue_softc *sc = usbd_xfer_softc(xfer);
847	struct ifnet *ifp = uether_getifp(&sc->sc_ue);
848	struct usb_page_cache *pc;
849	struct mbuf *m;
850	uint8_t buf[2];
851	int actlen;
852
853	usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
854	pc = usbd_xfer_get_frame(xfer, 0);
855
856	switch (USB_GET_STATE(xfer)) {
857	case USB_ST_TRANSFERRED:
858	DPRINTFN(11, "transfer of %d bytes complete\n", actlen);
859	if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
860
861	/* FALLTHROUGH */
862	case USB_ST_SETUP:
863	tr_setup:
864	if ((sc->sc_flags & AUE_FLAG_LINK) == 0) {
865	/*
866	* don't send anything if there is no link !
867	*/
868	return;
869	}
870	IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
871
872	if (m == NULL)
873	return;
874	if (m->m_pkthdr.len > MCLBYTES)
875	m->m_pkthdr.len = MCLBYTES;
876	if (sc->sc_flags & AUE_FLAG_VER_2) {
877
878	usbd_xfer_set_frame_len(xfer, 0, m->m_pkthdr.len);
879
880	usbd_m_copy_in(pc, 0, m, 0, m->m_pkthdr.len);
881
882	} else {
883
884	usbd_xfer_set_frame_len(xfer, 0, (m->m_pkthdr.len + 2));
885
886	/*
887	* The ADMtek documentation says that the
888	* packet length is supposed to be specified
889	* in the first two bytes of the transfer,
890	* however it actually seems to ignore this
891	* info and base the frame size on the bulk
892	* transfer length.
893	*/
894	buf[0] = (uint8_t)(m->m_pkthdr.len);
895	buf[1] = (uint8_t)(m->m_pkthdr.len >> 8);
896
897	usbd_copy_in(pc, 0, buf, 2);
898	usbd_m_copy_in(pc, 2, m, 0, m->m_pkthdr.len);
899	}
900
901	/*
902	* if there's a BPF listener, bounce a copy
903	* of this frame to him:
904	*/
905	BPF_MTAP(ifp, m);
906
907	m_freem(m);
908
909	usbd_transfer_submit(xfer);
910	return;
911
912	default: /* Error */
913	DPRINTFN(11, "transfer error, %s\n",
914	usbd_errstr(error));
915
916	if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
917
918	if (error != USB_ERR_CANCELLED) {
919	/* try to clear stall first */
920	usbd_xfer_set_stall(xfer);
921	goto tr_setup;
922	}
923	return;
924	}
925	}
926
927	static void
928	aue_tick(struct usb_ether *ue)
929	{
930	struct aue_softc *sc = uether_getsc(ue);
931	struct mii_data *mii = GET_MII(sc);
932
933	AUE_LOCK_ASSERT(sc, MA_OWNED);
934
935	mii_tick(mii);
936	if ((sc->sc_flags & AUE_FLAG_LINK) == 0
937	&& mii->mii_media_status & IFM_ACTIVE &&
938	IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
939	sc->sc_flags \|= AUE_FLAG_LINK;
940	aue_start(ue);
941	}
942	}
943
944	static void
945	aue_start(struct usb_ether *ue)
946	{
947	struct aue_softc *sc = uether_getsc(ue);
948
949	/*
950	* start the USB transfers, if not already started:
951	*/
952	usbd_transfer_start(sc->sc_xfer[AUE_INTR_DT_RD]);
953	usbd_transfer_start(sc->sc_xfer[AUE_BULK_DT_RD]);
954	usbd_transfer_start(sc->sc_xfer[AUE_BULK_DT_WR]);
955	}
956
957	static void
958	aue_init(struct usb_ether *ue)
959	{
960	struct aue_softc *sc = uether_getsc(ue);
961	struct ifnet *ifp = uether_getifp(ue);
962	int i;
963
964	AUE_LOCK_ASSERT(sc, MA_OWNED);
965
966	/*
967	* Cancel pending I/O
968	*/
969	aue_reset(sc);
970
971	/* Set MAC address */
972	for (i = 0; i != ETHER_ADDR_LEN; i++)
973	aue_csr_write_1(sc, AUE_PAR0 + i, IF_LLADDR(ifp)[i]);
974
975	/* update promiscuous setting */
976	aue_setpromisc(ue);
977
978	/* Load the multicast filter. */
979	aue_setmulti(ue);
980
981	/* Enable RX and TX */
982	aue_csr_write_1(sc, AUE_CTL0, AUE_CTL0_RXSTAT_APPEND \| AUE_CTL0_RX_ENB);
983	AUE_SETBIT(sc, AUE_CTL0, AUE_CTL0_TX_ENB);
984	AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_EP3_CLR);
985
986	usbd_xfer_set_stall(sc->sc_xfer[AUE_BULK_DT_WR]);
987
988	ifp->if_drv_flags \|= IFF_DRV_RUNNING;
989	aue_start(ue);
990	}
991
992	static void
993	aue_setpromisc(struct usb_ether *ue)
994	{
995	struct aue_softc *sc = uether_getsc(ue);
996	struct ifnet *ifp = uether_getifp(ue);
997
998	AUE_LOCK_ASSERT(sc, MA_OWNED);
999
1000	/* if we want promiscuous mode, set the allframes bit: */
1001	if (ifp->if_flags & IFF_PROMISC)
1002	AUE_SETBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
1003	else
1004	AUE_CLRBIT(sc, AUE_CTL2, AUE_CTL2_RX_PROMISC);
1005	}
1006
1007	/*
1008	* Set media options.
1009	*/
1010	static int
1011	aue_ifmedia_upd(struct ifnet *ifp)
1012	{
1013	struct aue_softc *sc = ifp->if_softc;
1014	struct mii_data *mii = GET_MII(sc);
1015	struct mii_softc *miisc;
1016	int error;
1017
1018	AUE_LOCK_ASSERT(sc, MA_OWNED);
1019
1020	sc->sc_flags &= ~AUE_FLAG_LINK;
1021	LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
1022	PHY_RESET(miisc);
1023	error = mii_mediachg(mii);
1024	return (error);
1025	}
1026
1027	/*
1028	* Report current media status.
1029	*/
1030	static void
1031	aue_ifmedia_sts(struct ifnet ifp, struct ifmediareq ifmr)
1032	{
1033	struct aue_softc *sc = ifp->if_softc;
1034	struct mii_data *mii = GET_MII(sc);
1035
1036	AUE_LOCK(sc);
1037	mii_pollstat(mii);
1038	ifmr->ifm_active = mii->mii_media_active;
1039	ifmr->ifm_status = mii->mii_media_status;
1040	AUE_UNLOCK(sc);
1041	}
1042
1043	/*
1044	* Stop the adapter and free any mbufs allocated to the
1045	* RX and TX lists.
1046	*/
1047	static void
1048	aue_stop(struct usb_ether *ue)
1049	{
1050	struct aue_softc *sc = uether_getsc(ue);
1051	struct ifnet *ifp = uether_getifp(ue);
1052
1053	AUE_LOCK_ASSERT(sc, MA_OWNED);
1054
1055	ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
1056	sc->sc_flags &= ~AUE_FLAG_LINK;
1057
1058	/*
1059	* stop all the transfers, if not already stopped:
1060	*/
1061	usbd_transfer_stop(sc->sc_xfer[AUE_BULK_DT_WR]);
1062	usbd_transfer_stop(sc->sc_xfer[AUE_BULK_DT_RD]);
1063	usbd_transfer_stop(sc->sc_xfer[AUE_INTR_DT_RD]);
1064
1065	aue_csr_write_1(sc, AUE_CTL0, 0);
1066	aue_csr_write_1(sc, AUE_CTL1, 0);
1067	aue_reset(sc);
1068	}

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