xref: /freebsd/sys/dev/vr/if_vrreg.h (revision 8ab2f5ecc596131f6ca790d6ae35540c06ed7985)
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 /* Misc Registers */
85 #define VR_MISC_CR1		0x81
86 #define VR_MISCCR1_FORSRST	0x40
87 
88 /*
89  * RX config bits.
90  */
91 #define VR_RXCFG_RX_ERRPKTS	0x01
92 #define VR_RXCFG_RX_RUNT	0x02
93 #define VR_RXCFG_RX_MULTI	0x04
94 #define VR_RXCFG_RX_BROAD	0x08
95 #define VR_RXCFG_RX_PROMISC	0x10
96 #define VR_RXCFG_RX_THRESH	0xE0
97 
98 #define VR_RXTHRESH_32BYTES	0x00
99 #define VR_RXTHRESH_64BYTES	0x20
100 #define VR_RXTHRESH_128BYTES	0x40
101 #define VR_RXTHRESH_256BYTES	0x60
102 #define VR_RXTHRESH_512BYTES	0x80
103 #define VR_RXTHRESH_768BYTES	0xA0
104 #define VR_RXTHRESH_1024BYTES	0xC0
105 #define VR_RXTHRESH_STORENFWD	0xE0
106 
107 /*
108  * TX config bits.
109  */
110 #define VR_TXCFG_RSVD0		0x01
111 #define VR_TXCFG_LOOPBKMODE	0x06
112 #define VR_TXCFG_BACKOFF	0x08
113 #define VR_TXCFG_RSVD1		0x10
114 #define VR_TXCFG_TX_THRESH	0xE0
115 
116 #define VR_TXTHRESH_32BYTES	0x00
117 #define VR_TXTHRESH_64BYTES	0x20
118 #define VR_TXTHRESH_128BYTES	0x40
119 #define VR_TXTHRESH_256BYTES	0x60
120 #define VR_TXTHRESH_512BYTES	0x80
121 #define VR_TXTHRESH_768BYTES	0xA0
122 #define VR_TXTHRESH_1024BYTES	0xC0
123 #define VR_TXTHRESH_STORENFWD	0xE0
124 
125 /*
126  * Command register bits.
127  */
128 #define VR_CMD_INIT		0x0001
129 #define VR_CMD_START		0x0002
130 #define VR_CMD_STOP		0x0004
131 #define VR_CMD_RX_ON		0x0008
132 #define VR_CMD_TX_ON		0x0010
133 #define	VR_CMD_TX_GO		0x0020
134 #define VR_CMD_RX_GO		0x0040
135 #define VR_CMD_RSVD		0x0080
136 #define VR_CMD_RX_EARLY		0x0100
137 #define VR_CMD_TX_EARLY		0x0200
138 #define VR_CMD_FULLDUPLEX	0x0400
139 #define VR_CMD_TX_NOPOLL	0x0800
140 
141 #define VR_CMD_RESET		0x8000
142 
143 /*
144  * Interrupt status bits.
145  */
146 #define VR_ISR_RX_OK		0x0001	/* packet rx ok */
147 #define VR_ISR_TX_OK		0x0002	/* packet tx ok */
148 #define VR_ISR_RX_ERR		0x0004	/* packet rx with err */
149 #define VR_ISR_TX_ABRT		0x0008	/* tx aborted due to excess colls */
150 #define VR_ISR_TX_UNDERRUN	0x0010	/* tx buffer underflow */
151 #define VR_ISR_RX_NOBUF		0x0020	/* no rx buffer available */
152 #define VR_ISR_BUSERR		0x0040	/* PCI bus error */
153 #define VR_ISR_STATSOFLOW	0x0080	/* stats counter oflow */
154 #define VR_ISR_RX_EARLY		0x0100	/* rx early */
155 #define VR_ISR_LINKSTAT		0x0200	/* MII status change */
156 #define VR_ISR_ETI		0x0200	/* Tx early (3043/3071) */
157 #define VR_ISR_UDFI		0x0200	/* Tx FIFO underflow (3065) */
158 #define VR_ISR_RX_OFLOW		0x0400	/* rx FIFO overflow */
159 #define VR_ISR_RX_DROPPED	0x0800
160 #define VR_ISR_RX_NOBUF2	0x1000
161 #define VR_ISR_TX_ABRT2		0x2000
162 #define VR_ISR_LINKSTAT2	0x4000
163 #define VR_ISR_MAGICPACKET	0x8000
164 
165 /*
166  * Interrupt mask bits.
167  */
168 #define VR_IMR_RX_OK		0x0001	/* packet rx ok */
169 #define VR_IMR_TX_OK		0x0002	/* packet tx ok */
170 #define VR_IMR_RX_ERR		0x0004	/* packet rx with err */
171 #define VR_IMR_TX_ABRT		0x0008	/* tx aborted due to excess colls */
172 #define VR_IMR_TX_UNDERRUN	0x0010	/* tx buffer underflow */
173 #define VR_IMR_RX_NOBUF		0x0020	/* no rx buffer available */
174 #define VR_IMR_BUSERR		0x0040	/* PCI bus error */
175 #define VR_IMR_STATSOFLOW	0x0080	/* stats counter oflow */
176 #define VR_IMR_RX_EARLY		0x0100	/* rx early */
177 #define VR_IMR_LINKSTAT		0x0200	/* MII status change */
178 #define VR_IMR_RX_OFLOW		0x0400	/* rx FIFO overflow */
179 #define VR_IMR_RX_DROPPED	0x0800
180 #define VR_IMR_RX_NOBUF2	0x1000
181 #define VR_IMR_TX_ABRT2		0x2000
182 #define VR_IMR_LINKSTAT2	0x4000
183 #define VR_IMR_MAGICPACKET	0x8000
184 
185 #define VR_INTRS							\
186 	(VR_IMR_RX_OK|VR_IMR_TX_OK|VR_IMR_RX_NOBUF|			\
187 	VR_IMR_TX_ABRT|VR_IMR_TX_UNDERRUN|VR_IMR_BUSERR|		\
188 	VR_IMR_RX_ERR|VR_ISR_RX_DROPPED)
189 
190 /*
191  * MII status register.
192  */
193 
194 #define VR_MIISTAT_SPEED	0x01
195 #define VR_MIISTAT_LINKFAULT	0x02
196 #define VR_MIISTAT_MGTREADERR	0x04
197 #define VR_MIISTAT_MIIERR	0x08
198 #define VR_MIISTAT_PHYOPT	0x10
199 #define VR_MIISTAT_MDC_SPEED	0x20
200 #define VR_MIISTAT_RSVD		0x40
201 #define VR_MIISTAT_GPIO1POLL	0x80
202 
203 /*
204  * MII command register bits.
205  */
206 #define VR_MIICMD_CLK		0x01
207 #define VR_MIICMD_DATAOUT	0x02
208 #define VR_MIICMD_DATAIN	0x04
209 #define VR_MIICMD_DIR		0x08
210 #define VR_MIICMD_DIRECTPGM	0x10
211 #define VR_MIICMD_WRITE_ENB	0x20
212 #define VR_MIICMD_READ_ENB	0x40
213 #define VR_MIICMD_AUTOPOLL	0x80
214 
215 /*
216  * EEPROM control bits.
217  */
218 #define VR_EECSR_DATAIN		0x01	/* data out */
219 #define VR_EECSR_DATAOUT	0x02	/* data in */
220 #define VR_EECSR_CLK		0x04	/* clock */
221 #define VR_EECSR_CS		0x08	/* chip select */
222 #define VR_EECSR_DPM		0x10
223 #define VR_EECSR_LOAD		0x20
224 #define VR_EECSR_EMBP		0x40
225 #define VR_EECSR_EEPR		0x80
226 
227 #define VR_EECMD_WRITE		0x140
228 #define VR_EECMD_READ		0x180
229 #define VR_EECMD_ERASE		0x1c0
230 
231 /*
232  * Test register bits.
233  */
234 #define VR_TEST_TEST0		0x01
235 #define VR_TEST_TEST1		0x02
236 #define VR_TEST_TEST2		0x04
237 #define VR_TEST_TSTUD		0x08
238 #define VR_TEST_TSTOV		0x10
239 #define VR_TEST_BKOFF		0x20
240 #define VR_TEST_FCOL		0x40
241 #define VR_TEST_HBDES		0x80
242 
243 /*
244  * Config register bits.
245  */
246 #define VR_CFG_GPIO2OUTENB	0x00000001
247 #define VR_CFG_GPIO2OUT		0x00000002	/* gen. purp. pin */
248 #define VR_CFG_GPIO2IN		0x00000004	/* gen. purp. pin */
249 #define VR_CFG_AUTOOPT		0x00000008	/* enable rx/tx autopoll */
250 #define VR_CFG_MIIOPT		0x00000010
251 #define VR_CFG_MMIENB		0x00000020	/* memory mapped mode enb */
252 #define VR_CFG_JUMPER		0x00000040	/* PHY and oper. mode select */
253 #define VR_CFG_EELOAD		0x00000080	/* enable EEPROM programming */
254 #define VR_CFG_LATMENB		0x00000100	/* larency timer effect enb. */
255 #define VR_CFG_MRREADWAIT	0x00000200
256 #define VR_CFG_MRWRITEWAIT	0x00000400
257 #define VR_CFG_RX_ARB		0x00000800
258 #define VR_CFG_TX_ARB		0x00001000
259 #define VR_CFG_READMULTI	0x00002000
260 #define VR_CFG_TX_PACE		0x00004000
261 #define VR_CFG_TX_QDIS		0x00008000
262 #define VR_CFG_ROMSEL0		0x00010000
263 #define VR_CFG_ROMSEL1		0x00020000
264 #define VR_CFG_ROMSEL2		0x00040000
265 #define VR_CFG_ROMTIMESEL	0x00080000
266 #define VR_CFG_RSVD0		0x00100000
267 #define VR_CFG_ROMDLY		0x00200000
268 #define VR_CFG_ROMOPT		0x00400000
269 #define VR_CFG_RSVD1		0x00800000
270 #define VR_CFG_BACKOFFOPT	0x01000000
271 #define VR_CFG_BACKOFFMOD	0x02000000
272 #define VR_CFG_CAPEFFECT	0x04000000
273 #define VR_CFG_BACKOFFRAND	0x08000000
274 #define VR_CFG_MAGICKPACKET	0x10000000
275 #define VR_CFG_PCIREADLINE	0x20000000
276 #define VR_CFG_DIAG		0x40000000
277 #define VR_CFG_GPIOEN		0x80000000
278 
279 /* Sticky HW bits */
280 #define VR_STICKHW_DS0		0x01
281 #define VR_STICKHW_DS1		0x02
282 #define VR_STICKHW_WOL_ENB	0x04
283 #define VR_STICKHW_WOL_STS	0x08
284 #define VR_STICKHW_LEGWOL_ENB	0x80
285 
286 /*
287  * BCR0 register bits. (At least for the VT6102 chip.)
288  */
289 #define VR_BCR0_DMA_LENGTH	0x07
290 
291 #define VR_BCR0_DMA_32BYTES	0x00
292 #define VR_BCR0_DMA_64BYTES	0x01
293 #define VR_BCR0_DMA_128BYTES	0x02
294 #define VR_BCR0_DMA_256BYTES	0x03
295 #define VR_BCR0_DMA_512BYTES	0x04
296 #define VR_BCR0_DMA_1024BYTES	0x05
297 #define VR_BCR0_DMA_STORENFWD	0x07
298 
299 #define VR_BCR0_RX_THRESH	0x38
300 
301 #define VR_BCR0_RXTHRESHCFG	0x00
302 #define VR_BCR0_RXTHRESH64BYTES	0x08
303 #define VR_BCR0_RXTHRESH128BYTES 0x10
304 #define VR_BCR0_RXTHRESH256BYTES 0x18
305 #define VR_BCR0_RXTHRESH512BYTES 0x20
306 #define VR_BCR0_RXTHRESH1024BYTES 0x28
307 #define VR_BCR0_RXTHRESHSTORENFWD 0x38
308 #define VR_BCR0_EXTLED		0x40
309 #define VR_BCR0_MED2		0x80
310 
311 /*
312  * BCR1 register bits. (At least for the VT6102 chip.)
313  */
314 #define VR_BCR1_POT0		0x01
315 #define VR_BCR1_POT1		0x02
316 #define VR_BCR1_POT2		0x04
317 #define VR_BCR1_TX_THRESH	0x38
318 #define VR_BCR1_TXTHRESHCFG	0x00
319 #define VR_BCR1_TXTHRESH64BYTES	0x08
320 #define VR_BCR1_TXTHRESH128BYTES 0x10
321 #define VR_BCR1_TXTHRESH256BYTES 0x18
322 #define VR_BCR1_TXTHRESH512BYTES 0x20
323 #define VR_BCR1_TXTHRESH1024BYTES 0x28
324 #define VR_BCR1_TXTHRESHSTORENFWD 0x38
325 
326 /*
327  * Rhine TX/RX list structure.
328  */
329 
330 struct vr_desc {
331 	u_int32_t		vr_status;
332 	u_int32_t		vr_ctl;
333 	u_int32_t		vr_ptr1;
334 	u_int32_t		vr_ptr2;
335 };
336 
337 #define vr_data		vr_ptr1
338 #define vr_next		vr_ptr2
339 
340 
341 #define VR_RXSTAT_RXERR		0x00000001
342 #define VR_RXSTAT_CRCERR	0x00000002
343 #define VR_RXSTAT_FRAMEALIGNERR	0x00000004
344 #define VR_RXSTAT_FIFOOFLOW	0x00000008
345 #define VR_RXSTAT_GIANT		0x00000010
346 #define VR_RXSTAT_RUNT		0x00000020
347 #define VR_RXSTAT_BUSERR	0x00000040
348 #define VR_RXSTAT_BUFFERR	0x00000080
349 #define VR_RXSTAT_LASTFRAG	0x00000100
350 #define VR_RXSTAT_FIRSTFRAG	0x00000200
351 #define VR_RXSTAT_RLINK		0x00000400
352 #define VR_RXSTAT_RX_PHYS	0x00000800
353 #define VR_RXSTAT_RX_BROAD	0x00001000
354 #define VR_RXSTAT_RX_MULTI	0x00002000
355 #define VR_RXSTAT_RX_OK		0x00004000
356 #define VR_RXSTAT_RXLEN		0x07FF0000
357 #define VR_RXSTAT_RXLEN_EXT	0x78000000
358 #define VR_RXSTAT_OWN		0x80000000
359 
360 #define VR_RXBYTES(x)		((x & VR_RXSTAT_RXLEN) >> 16)
361 #define VR_RXSTAT (VR_RXSTAT_FIRSTFRAG|VR_RXSTAT_LASTFRAG|VR_RXSTAT_OWN)
362 
363 #define VR_RXCTL_BUFLEN		0x000007FF
364 #define VR_RXCTL_BUFLEN_EXT	0x00007800
365 #define VR_RXCTL_CHAIN		0x00008000
366 #define VR_RXCTL_RX_INTR	0x00800000
367 
368 #define VR_RXCTL (VR_RXCTL_CHAIN|VR_RXCTL_RX_INTR)
369 
370 #define VR_TXSTAT_DEFER		0x00000001
371 #define VR_TXSTAT_UNDERRUN	0x00000002
372 #define VR_TXSTAT_COLLCNT	0x00000078
373 #define VR_TXSTAT_SQE		0x00000080
374 #define VR_TXSTAT_ABRT		0x00000100
375 #define VR_TXSTAT_LATECOLL	0x00000200
376 #define VR_TXSTAT_CARRLOST	0x00000400
377 #define VR_TXSTAT_UDF		0x00000800
378 #define VR_TXSTAT_BUSERR	0x00002000
379 #define VR_TXSTAT_JABTIMEO	0x00004000
380 #define VR_TXSTAT_ERRSUM	0x00008000
381 #define VR_TXSTAT_OWN		0x80000000
382 
383 #define VR_TXCTL_BUFLEN		0x000007FF
384 #define VR_TXCTL_BUFLEN_EXT	0x00007800
385 #define VR_TXCTL_TLINK		0x00008000
386 #define VR_TXCTL_FIRSTFRAG	0x00200000
387 #define VR_TXCTL_LASTFRAG	0x00400000
388 #define VR_TXCTL_FINT		0x00800000
389 
390 
391 #define VR_MAXFRAGS		16
392 #define VR_RX_LIST_CNT		64
393 #define VR_TX_LIST_CNT		128
394 #define VR_MIN_FRAMELEN		60
395 #define VR_FRAMELEN		1536
396 #define VR_RXLEN		1520
397 
398 #define VR_TXOWN(x)		x->vr_ptr->vr_status
399 
400 struct vr_list_data {
401 	struct vr_desc		vr_rx_list[VR_RX_LIST_CNT];
402 	struct vr_desc		vr_tx_list[VR_TX_LIST_CNT];
403 };
404 
405 struct vr_chain {
406 	struct vr_desc		*vr_ptr;
407 	struct mbuf		*vr_mbuf;
408 	struct vr_chain		*vr_nextdesc;
409 };
410 
411 struct vr_chain_onefrag {
412 	struct vr_desc		*vr_ptr;
413 	struct mbuf		*vr_mbuf;
414 	struct vr_chain_onefrag	*vr_nextdesc;
415 };
416 
417 struct vr_chain_data {
418 	struct vr_chain_onefrag	vr_rx_chain[VR_RX_LIST_CNT];
419 	struct vr_chain		vr_tx_chain[VR_TX_LIST_CNT];
420 
421 	struct vr_chain_onefrag	*vr_rx_head;
422 
423 	struct vr_chain		*vr_tx_cons;
424 	struct vr_chain		*vr_tx_prod;
425 };
426 
427 struct vr_type {
428 	u_int16_t		vr_vid;
429 	u_int16_t		vr_did;
430 	char			*vr_name;
431 };
432 
433 struct vr_mii_frame {
434 	u_int8_t		mii_stdelim;
435 	u_int8_t		mii_opcode;
436 	u_int8_t		mii_phyaddr;
437 	u_int8_t		mii_regaddr;
438 	u_int8_t		mii_turnaround;
439 	u_int16_t		mii_data;
440 };
441 
442 /*
443  * MII constants
444  */
445 #define VR_MII_STARTDELIM	0x01
446 #define VR_MII_READOP		0x02
447 #define VR_MII_WRITEOP		0x01
448 #define VR_MII_TURNAROUND	0x02
449 
450 #define VR_FLAG_FORCEDELAY	1
451 #define VR_FLAG_SCHEDDELAY	2
452 #define VR_FLAG_DELAYTIMEO	3
453 
454 struct vr_softc {
455 	struct arpcom		arpcom;		/* interface info */
456 	bus_space_handle_t	vr_bhandle;	/* bus space handle */
457 	bus_space_tag_t		vr_btag;	/* bus space tag */
458 	struct resource		*vr_res;
459 	struct resource		*vr_irq;
460 	void			*vr_intrhand;
461 	device_t		vr_miibus;
462 	struct vr_type		*vr_info;	/* Rhine adapter info */
463 	u_int8_t		vr_unit;	/* interface number */
464 	u_int8_t		vr_type;
465 	u_int8_t		vr_revid;	/* Rhine chip revision */
466 	u_int8_t                vr_flags;       /* See VR_F_* below */
467 	struct vr_list_data	*vr_ldata;
468 	struct vr_chain_data	vr_cdata;
469 	struct callout_handle	vr_stat_ch;
470 	struct mtx		vr_mtx;
471 	int			suspended;	/* if 1, sleeping/detaching */
472 #ifdef DEVICE_POLLING
473 	int			rxcycles;
474 #endif
475 };
476 
477 #define VR_F_RESTART		0x01		/* Restart unit on next tick */
478 
479 #define	VR_LOCK(_sc)		mtx_lock(&(_sc)->vr_mtx)
480 #define	VR_UNLOCK(_sc)		mtx_unlock(&(_sc)->vr_mtx)
481 #define	VR_LOCK_ASSERT(_sc)	mtx_assert(&(_sc)->vr_mtx, MA_OWNED)
482 
483 /*
484  * register space access macros
485  */
486 #define CSR_WRITE_4(sc, reg, val)	\
487 	bus_space_write_4(sc->vr_btag, sc->vr_bhandle, reg, val)
488 #define CSR_WRITE_2(sc, reg, val)	\
489 	bus_space_write_2(sc->vr_btag, sc->vr_bhandle, reg, val)
490 #define CSR_WRITE_1(sc, reg, val)	\
491 	bus_space_write_1(sc->vr_btag, sc->vr_bhandle, reg, val)
492 
493 #define CSR_READ_4(sc, reg)		\
494 	bus_space_read_4(sc->vr_btag, sc->vr_bhandle, reg)
495 #define CSR_READ_2(sc, reg)		\
496 	bus_space_read_2(sc->vr_btag, sc->vr_bhandle, reg)
497 #define CSR_READ_1(sc, reg)		\
498 	bus_space_read_1(sc->vr_btag, sc->vr_bhandle, reg)
499 
500 #define VR_TIMEOUT		1000
501 #define ETHER_ALIGN		2
502 
503 /*
504  * General constants that are fun to know.
505  *
506  * VIA vendor ID
507  */
508 #define	VIA_VENDORID			0x1106
509 
510 /*
511  * VIA Rhine device IDs.
512  */
513 #define	VIA_DEVICEID_RHINE		0x3043
514 #define VIA_DEVICEID_RHINE_II		0x6100
515 #define VIA_DEVICEID_RHINE_II_2		0x3065
516 #define VIA_DEVICEID_RHINE_III		0x3106
517 #define VIA_DEVICEID_RHINE_III_M	0x3053
518 
519 /*
520  * Delta Electronics device ID.
521  */
522 #define DELTA_VENDORID			0x1500
523 
524 /*
525  * Delta device IDs.
526  */
527 #define DELTA_DEVICEID_RHINE_II		0x1320
528 
529 /*
530  * Addtron vendor ID.
531  */
532 #define ADDTRON_VENDORID		0x4033
533 
534 /*
535  * Addtron device IDs.
536  */
537 #define ADDTRON_DEVICEID_RHINE_II	0x1320
538 
539 /*
540  * VIA Rhine revision IDs
541  */
542 
543 #define REV_ID_VT3043_E			0x04
544 #define REV_ID_VT3071_A			0x20
545 #define REV_ID_VT3071_B			0x21
546 #define REV_ID_VT3065_A			0x40
547 #define REV_ID_VT3065_B			0x41
548 #define REV_ID_VT3065_C			0x42
549 #define REV_ID_VT6102_APOLLO		0x74
550 #define REV_ID_VT3106			0x80
551 #define REV_ID_VT3106_J			0x80    /* 0x80-0x8F */
552 #define REV_ID_VT3106_S			0x90    /* 0x90-0xA0 */
553 
554 /*
555  * PCI low memory base and low I/O base register, and
556  * other PCI registers.
557  */
558 
559 #define VR_PCI_VENDOR_ID	0x00
560 #define VR_PCI_DEVICE_ID	0x02
561 #define VR_PCI_COMMAND		0x04
562 #define VR_PCI_STATUS		0x06
563 #define VR_PCI_REVID		0x08
564 #define VR_PCI_CLASSCODE	0x09
565 #define VR_PCI_LATENCY_TIMER	0x0D
566 #define VR_PCI_HEADER_TYPE	0x0E
567 #define VR_PCI_LOIO		0x10
568 #define VR_PCI_LOMEM		0x14
569 #define VR_PCI_BIOSROM		0x30
570 #define VR_PCI_INTLINE		0x3C
571 #define VR_PCI_INTPIN		0x3D
572 #define VR_PCI_MINGNT		0x3E
573 #define VR_PCI_MINLAT		0x0F
574 #define VR_PCI_RESETOPT		0x48
575 #define VR_PCI_EEPROM_DATA	0x4C
576 #define VR_PCI_MODE		0x50
577 
578 #define VR_MODE3_MIION		0x04
579 
580 /* power management registers */
581 #define VR_PCI_CAPID		0xDC /* 8 bits */
582 #define VR_PCI_NEXTPTR		0xDD /* 8 bits */
583 #define VR_PCI_PWRMGMTCAP	0xDE /* 16 bits */
584 #define VR_PCI_PWRMGMTCTRL	0xE0 /* 16 bits */
585 
586 #define VR_PSTATE_MASK		0x0003
587 #define VR_PSTATE_D0		0x0000
588 #define VR_PSTATE_D1		0x0002
589 #define VR_PSTATE_D2		0x0002
590 #define VR_PSTATE_D3		0x0003
591 #define VR_PME_EN		0x0010
592 #define VR_PME_STATUS		0x8000
593 
594 
595 #ifdef __alpha__
596 #undef vtophys
597 #define vtophys(va)		alpha_XXX_dmamap((vm_offset_t)va)
598 #endif
599