xref: /freebsd/sys/dev/vr/if_vrreg.h (revision 71fe318b852b8dfb3e799cb12ef184750f7f8eac)
1 /*
2  * Copyright (c) 1997, 1998
3  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by Bill Paul.
16  * 4. 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 Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD
24  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30  * THE POSSIBILITY OF SUCH DAMAGE.
31  *
32  * $FreeBSD$
33  */
34 
35 /*
36  * Rhine register definitions.
37  */
38 
39 #define VR_PAR0			0x00	/* node address 0 to 4 */
40 #define VR_PAR1			0x04	/* node address 2 to 6 */
41 #define VR_RXCFG		0x06	/* receiver config register */
42 #define VR_TXCFG		0x07	/* transmit config register */
43 #define VR_COMMAND		0x08	/* command register */
44 #define VR_ISR			0x0C	/* interrupt/status register */
45 #define VR_IMR			0x0E	/* interrupt mask register */
46 #define VR_MAR0			0x10	/* multicast hash 0 */
47 #define VR_MAR1			0x14	/* multicast hash 1 */
48 #define VR_RXADDR		0x18	/* rx descriptor list start addr */
49 #define VR_TXADDR		0x1C	/* tx descriptor list start addr */
50 #define VR_CURRXDESC0		0x20
51 #define VR_CURRXDESC1		0x24
52 #define VR_CURRXDESC2		0x28
53 #define VR_CURRXDESC3		0x2C
54 #define VR_NEXTRXDESC0		0x30
55 #define VR_NEXTRXDESC1		0x34
56 #define VR_NEXTRXDESC2		0x38
57 #define VR_NEXTRXDESC3		0x3C
58 #define VR_CURTXDESC0		0x40
59 #define VR_CURTXDESC1		0x44
60 #define VR_CURTXDESC2		0x48
61 #define VR_CURTXDESC3		0x4C
62 #define VR_NEXTTXDESC0		0x50
63 #define VR_NEXTTXDESC1		0x54
64 #define VR_NEXTTXDESC2		0x58
65 #define VR_NEXTTXDESC3		0x5C
66 #define VR_CURRXDMA		0x60	/* current RX DMA address */
67 #define VR_CURTXDMA		0x64	/* current TX DMA address */
68 #define VR_TALLYCNT		0x68	/* tally counter test register */
69 #define VR_PHYADDR		0x6C
70 #define VR_MIISTAT		0x6D
71 #define VR_BCR0			0x6E
72 #define VR_BCR1			0x6F
73 #define VR_MIICMD		0x70
74 #define VR_MIIADDR		0x71
75 #define VR_MIIDATA		0x72
76 #define VR_EECSR		0x74
77 #define VR_TEST			0x75
78 #define VR_GPIO			0x76
79 #define VR_CONFIG		0x78
80 #define VR_MPA_CNT		0x7C
81 #define VR_CRC_CNT		0x7E
82 #define VR_STICKHW		0x83
83 
84 /*
85  * RX config bits.
86  */
87 #define VR_RXCFG_RX_ERRPKTS	0x01
88 #define VR_RXCFG_RX_RUNT	0x02
89 #define VR_RXCFG_RX_MULTI	0x04
90 #define VR_RXCFG_RX_BROAD	0x08
91 #define VR_RXCFG_RX_PROMISC	0x10
92 #define VR_RXCFG_RX_THRESH	0xE0
93 
94 #define VR_RXTHRESH_32BYTES	0x00
95 #define VR_RXTHRESH_64BYTES	0x20
96 #define VR_RXTHRESH_128BYTES	0x40
97 #define VR_RXTHRESH_256BYTES	0x60
98 #define VR_RXTHRESH_512BYTES	0x80
99 #define VR_RXTHRESH_768BYTES	0xA0
100 #define VR_RXTHRESH_1024BYTES	0xC0
101 #define VR_RXTHRESH_STORENFWD	0xE0
102 
103 /*
104  * TX config bits.
105  */
106 #define VR_TXCFG_RSVD0		0x01
107 #define VR_TXCFG_LOOPBKMODE	0x06
108 #define VR_TXCFG_BACKOFF	0x08
109 #define VR_TXCFG_RSVD1		0x10
110 #define VR_TXCFG_TX_THRESH	0xE0
111 
112 #define VR_TXTHRESH_32BYTES	0x00
113 #define VR_TXTHRESH_64BYTES	0x20
114 #define VR_TXTHRESH_128BYTES	0x40
115 #define VR_TXTHRESH_256BYTES	0x60
116 #define VR_TXTHRESH_512BYTES	0x80
117 #define VR_TXTHRESH_768BYTES	0xA0
118 #define VR_TXTHRESH_1024BYTES	0xC0
119 #define VR_TXTHRESH_STORENFWD	0xE0
120 
121 /*
122  * Command register bits.
123  */
124 #define VR_CMD_INIT		0x0001
125 #define VR_CMD_START		0x0002
126 #define VR_CMD_STOP		0x0004
127 #define VR_CMD_RX_ON		0x0008
128 #define VR_CMD_TX_ON		0x0010
129 #define	VR_CMD_TX_GO		0x0020
130 #define VR_CMD_RX_GO		0x0040
131 #define VR_CMD_RSVD		0x0080
132 #define VR_CMD_RX_EARLY		0x0100
133 #define VR_CMD_TX_EARLY		0x0200
134 #define VR_CMD_FULLDUPLEX	0x0400
135 #define VR_CMD_TX_NOPOLL	0x0800
136 
137 #define VR_CMD_RESET		0x8000
138 
139 /*
140  * Interrupt status bits.
141  */
142 #define VR_ISR_RX_OK		0x0001	/* packet rx ok */
143 #define VR_ISR_TX_OK		0x0002	/* packet tx ok */
144 #define VR_ISR_RX_ERR		0x0004	/* packet rx with err */
145 #define VR_ISR_TX_ABRT		0x0008	/* tx aborted due to excess colls */
146 #define VR_ISR_TX_UNDERRUN	0x0010	/* tx buffer underflow */
147 #define VR_ISR_RX_NOBUF		0x0020	/* no rx buffer available */
148 #define VR_ISR_BUSERR		0x0040	/* PCI bus error */
149 #define VR_ISR_STATSOFLOW	0x0080	/* stats counter oflow */
150 #define VR_ISR_RX_EARLY		0x0100	/* rx early */
151 #define VR_ISR_LINKSTAT		0x0200	/* MII status change */
152 #define VR_ISR_ETI		0x0200	/* Tx early (3043/3071) */
153 #define VR_ISR_UDFI		0x0200	/* Tx FIFO underflow (3065) */
154 #define VR_ISR_RX_OFLOW		0x0400	/* rx FIFO overflow */
155 #define VR_ISR_RX_DROPPED	0x0800
156 #define VR_ISR_RX_NOBUF2	0x1000
157 #define VR_ISR_TX_ABRT2		0x2000
158 #define VR_ISR_LINKSTAT2	0x4000
159 #define VR_ISR_MAGICPACKET	0x8000
160 
161 /*
162  * Interrupt mask bits.
163  */
164 #define VR_IMR_RX_OK		0x0001	/* packet rx ok */
165 #define VR_IMR_TX_OK		0x0002	/* packet tx ok */
166 #define VR_IMR_RX_ERR		0x0004	/* packet rx with err */
167 #define VR_IMR_TX_ABRT		0x0008	/* tx aborted due to excess colls */
168 #define VR_IMR_TX_UNDERRUN	0x0010	/* tx buffer underflow */
169 #define VR_IMR_RX_NOBUF		0x0020	/* no rx buffer available */
170 #define VR_IMR_BUSERR		0x0040	/* PCI bus error */
171 #define VR_IMR_STATSOFLOW	0x0080	/* stats counter oflow */
172 #define VR_IMR_RX_EARLY		0x0100	/* rx early */
173 #define VR_IMR_LINKSTAT		0x0200	/* MII status change */
174 #define VR_IMR_RX_OFLOW		0x0400	/* rx FIFO overflow */
175 #define VR_IMR_RX_DROPPED	0x0800
176 #define VR_IMR_RX_NOBUF2	0x1000
177 #define VR_IMR_TX_ABRT2		0x2000
178 #define VR_IMR_LINKSTAT2	0x4000
179 #define VR_IMR_MAGICPACKET	0x8000
180 
181 #define VR_INTRS							\
182 	(VR_IMR_RX_OK|VR_IMR_TX_OK|VR_IMR_RX_NOBUF|			\
183 	VR_IMR_TX_ABRT|VR_IMR_TX_UNDERRUN|VR_IMR_BUSERR|		\
184 	VR_IMR_RX_ERR|VR_ISR_RX_DROPPED)
185 
186 /*
187  * MII status register.
188  */
189 
190 #define VR_MIISTAT_SPEED	0x01
191 #define VR_MIISTAT_LINKFAULT	0x02
192 #define VR_MIISTAT_MGTREADERR	0x04
193 #define VR_MIISTAT_MIIERR	0x08
194 #define VR_MIISTAT_PHYOPT	0x10
195 #define VR_MIISTAT_MDC_SPEED	0x20
196 #define VR_MIISTAT_RSVD		0x40
197 #define VR_MIISTAT_GPIO1POLL	0x80
198 
199 /*
200  * MII command register bits.
201  */
202 #define VR_MIICMD_CLK		0x01
203 #define VR_MIICMD_DATAOUT	0x02
204 #define VR_MIICMD_DATAIN	0x04
205 #define VR_MIICMD_DIR		0x08
206 #define VR_MIICMD_DIRECTPGM	0x10
207 #define VR_MIICMD_WRITE_ENB	0x20
208 #define VR_MIICMD_READ_ENB	0x40
209 #define VR_MIICMD_AUTOPOLL	0x80
210 
211 /*
212  * EEPROM control bits.
213  */
214 #define VR_EECSR_DATAIN		0x01	/* data out */
215 #define VR_EECSR_DATAOUT	0x02	/* data in */
216 #define VR_EECSR_CLK		0x04	/* clock */
217 #define VR_EECSR_CS		0x08	/* chip select */
218 #define VR_EECSR_DPM		0x10
219 #define VR_EECSR_LOAD		0x20
220 #define VR_EECSR_EMBP		0x40
221 #define VR_EECSR_EEPR		0x80
222 
223 #define VR_EECMD_WRITE		0x140
224 #define VR_EECMD_READ		0x180
225 #define VR_EECMD_ERASE		0x1c0
226 
227 /*
228  * Test register bits.
229  */
230 #define VR_TEST_TEST0		0x01
231 #define VR_TEST_TEST1		0x02
232 #define VR_TEST_TEST2		0x04
233 #define VR_TEST_TSTUD		0x08
234 #define VR_TEST_TSTOV		0x10
235 #define VR_TEST_BKOFF		0x20
236 #define VR_TEST_FCOL		0x40
237 #define VR_TEST_HBDES		0x80
238 
239 /*
240  * Config register bits.
241  */
242 #define VR_CFG_GPIO2OUTENB	0x00000001
243 #define VR_CFG_GPIO2OUT		0x00000002	/* gen. purp. pin */
244 #define VR_CFG_GPIO2IN		0x00000004	/* gen. purp. pin */
245 #define VR_CFG_AUTOOPT		0x00000008	/* enable rx/tx autopoll */
246 #define VR_CFG_MIIOPT		0x00000010
247 #define VR_CFG_MMIENB		0x00000020	/* memory mapped mode enb */
248 #define VR_CFG_JUMPER		0x00000040	/* PHY and oper. mode select */
249 #define VR_CFG_EELOAD		0x00000080	/* enable EEPROM programming */
250 #define VR_CFG_LATMENB		0x00000100	/* larency timer effect enb. */
251 #define VR_CFG_MRREADWAIT	0x00000200
252 #define VR_CFG_MRWRITEWAIT	0x00000400
253 #define VR_CFG_RX_ARB		0x00000800
254 #define VR_CFG_TX_ARB		0x00001000
255 #define VR_CFG_READMULTI	0x00002000
256 #define VR_CFG_TX_PACE		0x00004000
257 #define VR_CFG_TX_QDIS		0x00008000
258 #define VR_CFG_ROMSEL0		0x00010000
259 #define VR_CFG_ROMSEL1		0x00020000
260 #define VR_CFG_ROMSEL2		0x00040000
261 #define VR_CFG_ROMTIMESEL	0x00080000
262 #define VR_CFG_RSVD0		0x00100000
263 #define VR_CFG_ROMDLY		0x00200000
264 #define VR_CFG_ROMOPT		0x00400000
265 #define VR_CFG_RSVD1		0x00800000
266 #define VR_CFG_BACKOFFOPT	0x01000000
267 #define VR_CFG_BACKOFFMOD	0x02000000
268 #define VR_CFG_CAPEFFECT	0x04000000
269 #define VR_CFG_BACKOFFRAND	0x08000000
270 #define VR_CFG_MAGICKPACKET	0x10000000
271 #define VR_CFG_PCIREADLINE	0x20000000
272 #define VR_CFG_DIAG		0x40000000
273 #define VR_CFG_GPIOEN		0x80000000
274 
275 /* Sticky HW bits */
276 #define VR_STICKHW_DS0		0x01
277 #define VR_STICKHW_DS1		0x02
278 #define VR_STICKHW_WOL_ENB	0x04
279 #define VR_STICKHW_WOL_STS	0x08
280 #define VR_STICKHW_LEGWOL_ENB	0x80
281 
282 /*
283  * BCR0 register bits. (At least for the VT6102 chip.)
284  */
285 #define VR_BCR0_DMA_LENGTH	0x07
286 
287 #define VR_BCR0_DMA_32BYTES	0x00
288 #define VR_BCR0_DMA_64BYTES	0x01
289 #define VR_BCR0_DMA_128BYTES	0x02
290 #define VR_BCR0_DMA_256BYTES	0x03
291 #define VR_BCR0_DMA_512BYTES	0x04
292 #define VR_BCR0_DMA_1024BYTES	0x05
293 #define VR_BCR0_DMA_STORENFWD	0x07
294 
295 #define VR_BCR0_RX_THRESH	0x38
296 
297 #define VR_BCR0_RXTHRESHCFG	0x00
298 #define VR_BCR0_RXTHRESH64BYTES	0x08
299 #define VR_BCR0_RXTHRESH128BYTES 0x10
300 #define VR_BCR0_RXTHRESH256BYTES 0x18
301 #define VR_BCR0_RXTHRESH512BYTES 0x20
302 #define VR_BCR0_RXTHRESH1024BYTES 0x28
303 #define VR_BCR0_RXTHRESHSTORENFWD 0x38
304 #define VR_BCR0_EXTLED		0x40
305 #define VR_BCR0_MED2		0x80
306 
307 /*
308  * BCR1 register bits. (At least for the VT6102 chip.)
309  */
310 #define VR_BCR1_POT0		0x01
311 #define VR_BCR1_POT1		0x02
312 #define VR_BCR1_POT2		0x04
313 #define VR_BCR1_TX_THRESH	0x38
314 #define VR_BCR1_TXTHRESHCFG	0x00
315 #define VR_BCR1_TXTHRESH64BYTES	0x08
316 #define VR_BCR1_TXTHRESH128BYTES 0x10
317 #define VR_BCR1_TXTHRESH256BYTES 0x18
318 #define VR_BCR1_TXTHRESH512BYTES 0x20
319 #define VR_BCR1_TXTHRESH1024BYTES 0x28
320 #define VR_BCR1_TXTHRESHSTORENFWD 0x38
321 
322 /*
323  * Rhine TX/RX list structure.
324  */
325 
326 struct vr_desc {
327 	u_int32_t		vr_status;
328 	u_int32_t		vr_ctl;
329 	u_int32_t		vr_ptr1;
330 	u_int32_t		vr_ptr2;
331 };
332 
333 #define vr_data		vr_ptr1
334 #define vr_next		vr_ptr2
335 
336 
337 #define VR_RXSTAT_RXERR		0x00000001
338 #define VR_RXSTAT_CRCERR	0x00000002
339 #define VR_RXSTAT_FRAMEALIGNERR	0x00000004
340 #define VR_RXSTAT_FIFOOFLOW	0x00000008
341 #define VR_RXSTAT_GIANT		0x00000010
342 #define VR_RXSTAT_RUNT		0x00000020
343 #define VR_RXSTAT_BUSERR	0x00000040
344 #define VR_RXSTAT_BUFFERR	0x00000080
345 #define VR_RXSTAT_LASTFRAG	0x00000100
346 #define VR_RXSTAT_FIRSTFRAG	0x00000200
347 #define VR_RXSTAT_RLINK		0x00000400
348 #define VR_RXSTAT_RX_PHYS	0x00000800
349 #define VR_RXSTAT_RX_BROAD	0x00001000
350 #define VR_RXSTAT_RX_MULTI	0x00002000
351 #define VR_RXSTAT_RX_OK		0x00004000
352 #define VR_RXSTAT_RXLEN		0x07FF0000
353 #define VR_RXSTAT_RXLEN_EXT	0x78000000
354 #define VR_RXSTAT_OWN		0x80000000
355 
356 #define VR_RXBYTES(x)		((x & VR_RXSTAT_RXLEN) >> 16)
357 #define VR_RXSTAT (VR_RXSTAT_FIRSTFRAG|VR_RXSTAT_LASTFRAG|VR_RXSTAT_OWN)
358 
359 #define VR_RXCTL_BUFLEN		0x000007FF
360 #define VR_RXCTL_BUFLEN_EXT	0x00007800
361 #define VR_RXCTL_CHAIN		0x00008000
362 #define VR_RXCTL_RX_INTR	0x00800000
363 
364 #define VR_RXCTL (VR_RXCTL_CHAIN|VR_RXCTL_RX_INTR)
365 
366 #define VR_TXSTAT_DEFER		0x00000001
367 #define VR_TXSTAT_UNDERRUN	0x00000002
368 #define VR_TXSTAT_COLLCNT	0x00000078
369 #define VR_TXSTAT_SQE		0x00000080
370 #define VR_TXSTAT_ABRT		0x00000100
371 #define VR_TXSTAT_LATECOLL	0x00000200
372 #define VR_TXSTAT_CARRLOST	0x00000400
373 #define VR_TXSTAT_UDF		0x00000800
374 #define VR_TXSTAT_BUSERR	0x00002000
375 #define VR_TXSTAT_JABTIMEO	0x00004000
376 #define VR_TXSTAT_ERRSUM	0x00008000
377 #define VR_TXSTAT_OWN		0x80000000
378 
379 #define VR_TXCTL_BUFLEN		0x000007FF
380 #define VR_TXCTL_BUFLEN_EXT	0x00007800
381 #define VR_TXCTL_TLINK		0x00008000
382 #define VR_TXCTL_FIRSTFRAG	0x00200000
383 #define VR_TXCTL_LASTFRAG	0x00400000
384 #define VR_TXCTL_FINT		0x00800000
385 
386 
387 #define VR_MAXFRAGS		16
388 #define VR_RX_LIST_CNT		64
389 #define VR_TX_LIST_CNT		128
390 #define VR_MIN_FRAMELEN		60
391 #define VR_FRAMELEN		1536
392 #define VR_RXLEN		1520
393 
394 #define VR_TXOWN(x)		x->vr_ptr->vr_status
395 
396 struct vr_list_data {
397 	struct vr_desc		vr_rx_list[VR_RX_LIST_CNT];
398 	struct vr_desc		vr_tx_list[VR_TX_LIST_CNT];
399 };
400 
401 struct vr_chain {
402 	struct vr_desc		*vr_ptr;
403 	struct mbuf		*vr_mbuf;
404 	struct vr_chain		*vr_nextdesc;
405 };
406 
407 struct vr_chain_onefrag {
408 	struct vr_desc		*vr_ptr;
409 	struct mbuf		*vr_mbuf;
410 	struct vr_chain_onefrag	*vr_nextdesc;
411 };
412 
413 struct vr_chain_data {
414 	struct vr_chain_onefrag	vr_rx_chain[VR_RX_LIST_CNT];
415 	struct vr_chain		vr_tx_chain[VR_TX_LIST_CNT];
416 
417 	struct vr_chain_onefrag	*vr_rx_head;
418 
419 	struct vr_chain		*vr_tx_head;
420 	struct vr_chain		*vr_tx_tail;
421 	struct vr_chain		*vr_tx_free;
422 };
423 
424 struct vr_type {
425 	u_int16_t		vr_vid;
426 	u_int16_t		vr_did;
427 	char			*vr_name;
428 };
429 
430 struct vr_mii_frame {
431 	u_int8_t		mii_stdelim;
432 	u_int8_t		mii_opcode;
433 	u_int8_t		mii_phyaddr;
434 	u_int8_t		mii_regaddr;
435 	u_int8_t		mii_turnaround;
436 	u_int16_t		mii_data;
437 };
438 
439 /*
440  * MII constants
441  */
442 #define VR_MII_STARTDELIM	0x01
443 #define VR_MII_READOP		0x02
444 #define VR_MII_WRITEOP		0x01
445 #define VR_MII_TURNAROUND	0x02
446 
447 #define VR_FLAG_FORCEDELAY	1
448 #define VR_FLAG_SCHEDDELAY	2
449 #define VR_FLAG_DELAYTIMEO	3
450 
451 struct vr_softc {
452 	struct arpcom		arpcom;		/* interface info */
453 	bus_space_handle_t	vr_bhandle;	/* bus space handle */
454 	bus_space_tag_t		vr_btag;	/* bus space tag */
455 	struct resource		*vr_res;
456 	struct resource		*vr_irq;
457 	void			*vr_intrhand;
458 	device_t		vr_miibus;
459 	struct vr_type		*vr_info;	/* Rhine adapter info */
460 	u_int8_t		vr_unit;	/* interface number */
461 	u_int8_t		vr_type;
462 	struct vr_list_data	*vr_ldata;
463 	struct vr_chain_data	vr_cdata;
464 	struct callout_handle	vr_stat_ch;
465 	struct mtx		vr_mtx;
466 };
467 
468 #define	VR_LOCK(_sc)		mtx_lock(&(_sc)->vr_mtx)
469 #define	VR_UNLOCK(_sc)		mtx_unlock(&(_sc)->vr_mtx)
470 
471 /*
472  * register space access macros
473  */
474 #define CSR_WRITE_4(sc, reg, val)	\
475 	bus_space_write_4(sc->vr_btag, sc->vr_bhandle, reg, val)
476 #define CSR_WRITE_2(sc, reg, val)	\
477 	bus_space_write_2(sc->vr_btag, sc->vr_bhandle, reg, val)
478 #define CSR_WRITE_1(sc, reg, val)	\
479 	bus_space_write_1(sc->vr_btag, sc->vr_bhandle, reg, val)
480 
481 #define CSR_READ_4(sc, reg)		\
482 	bus_space_read_4(sc->vr_btag, sc->vr_bhandle, reg)
483 #define CSR_READ_2(sc, reg)		\
484 	bus_space_read_2(sc->vr_btag, sc->vr_bhandle, reg)
485 #define CSR_READ_1(sc, reg)		\
486 	bus_space_read_1(sc->vr_btag, sc->vr_bhandle, reg)
487 
488 #define VR_TIMEOUT		1000
489 #define ETHER_ALIGN		2
490 
491 /*
492  * General constants that are fun to know.
493  *
494  * VIA vendor ID
495  */
496 #define	VIA_VENDORID			0x1106
497 
498 /*
499  * VIA Rhine device IDs.
500  */
501 #define	VIA_DEVICEID_RHINE		0x3043
502 #define VIA_DEVICEID_RHINE_II		0x6100
503 #define VIA_DEVICEID_RHINE_II_2		0x3065
504 
505 /*
506  * Delta Electronics device ID.
507  */
508 #define DELTA_VENDORID			0x1500
509 
510 /*
511  * Delta device IDs.
512  */
513 #define DELTA_DEVICEID_RHINE_II		0x1320
514 
515 /*
516  * Addtron vendor ID.
517  */
518 #define ADDTRON_VENDORID		0x4033
519 
520 /*
521  * Addtron device IDs.
522  */
523 #define ADDTRON_DEVICEID_RHINE_II	0x1320
524 
525 
526 /*
527  * PCI low memory base and low I/O base register, and
528  * other PCI registers.
529  */
530 
531 #define VR_PCI_VENDOR_ID	0x00
532 #define VR_PCI_DEVICE_ID	0x02
533 #define VR_PCI_COMMAND		0x04
534 #define VR_PCI_STATUS		0x06
535 #define VR_PCI_CLASSCODE	0x09
536 #define VR_PCI_LATENCY_TIMER	0x0D
537 #define VR_PCI_HEADER_TYPE	0x0E
538 #define VR_PCI_LOIO		0x10
539 #define VR_PCI_LOMEM		0x14
540 #define VR_PCI_BIOSROM		0x30
541 #define VR_PCI_INTLINE		0x3C
542 #define VR_PCI_INTPIN		0x3D
543 #define VR_PCI_MINGNT		0x3E
544 #define VR_PCI_MINLAT		0x0F
545 #define VR_PCI_RESETOPT		0x48
546 #define VR_PCI_EEPROM_DATA	0x4C
547 
548 /* power management registers */
549 #define VR_PCI_CAPID		0xDC /* 8 bits */
550 #define VR_PCI_NEXTPTR		0xDD /* 8 bits */
551 #define VR_PCI_PWRMGMTCAP	0xDE /* 16 bits */
552 #define VR_PCI_PWRMGMTCTRL	0xE0 /* 16 bits */
553 
554 #define VR_PSTATE_MASK		0x0003
555 #define VR_PSTATE_D0		0x0000
556 #define VR_PSTATE_D1		0x0002
557 #define VR_PSTATE_D2		0x0002
558 #define VR_PSTATE_D3		0x0003
559 #define VR_PME_EN		0x0010
560 #define VR_PME_STATUS		0x8000
561 
562 
563 #ifdef __alpha__
564 #undef vtophys
565 #define vtophys(va)		alpha_XXX_dmamap((vm_offset_t)va)
566 #endif
567