xref: /openbsd-src/sys/dev/pci/if_vrreg.h (revision 2b0358df1d88d06ef4139321dd05bd5e05d91eaf)
1 /*	$OpenBSD: if_vrreg.h,v 1.21 2008/07/18 13:38:40 thib Exp $	*/
2 
3 /*
4  * Copyright (c) 1997, 1998
5  *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *	This product includes software developed by Bill Paul.
18  * 4. Neither the name of the author nor the names of any co-contributors
19  *    may be used to endorse or promote products derived from this software
20  *    without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
26  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32  * THE POSSIBILITY OF SUCH DAMAGE.
33  *
34  * $FreeBSD: src/sys/pci/if_vrreg.h,v 1.17 2003/02/01 01:27:05 silby Exp $
35  */
36 
37 /*
38  * Rhine register definitions.
39  */
40 
41 #define VR_PAR0			0x00	/* node address 0 to 4 */
42 #define VR_PAR1			0x04	/* node address 2 to 6 */
43 #define VR_RXCFG		0x06	/* receiver config register */
44 #define VR_TXCFG		0x07	/* transmit config register */
45 #define VR_COMMAND		0x08	/* command register */
46 #define VR_ISR			0x0C	/* interrupt/status register */
47 #define VR_IMR			0x0E	/* interrupt mask register */
48 #define VR_MAR0			0x10	/* multicast hash 0 */
49 #define VR_MAR1			0x14	/* multicast hash 1 */
50 #define VR_RXADDR		0x18	/* rx descriptor list start addr */
51 #define VR_TXADDR		0x1C	/* tx descriptor list start addr */
52 #define VR_CURRXDESC0		0x20
53 #define VR_CURRXDESC1		0x24
54 #define VR_CURRXDESC2		0x28
55 #define VR_CURRXDESC3		0x2C
56 #define VR_NEXTRXDESC0		0x30
57 #define VR_NEXTRXDESC1		0x34
58 #define VR_NEXTRXDESC2		0x38
59 #define VR_NEXTRXDESC3		0x3C
60 #define VR_CURTXDESC0		0x40
61 #define VR_CURTXDESC1		0x44
62 #define VR_CURTXDESC2		0x48
63 #define VR_CURTXDESC3		0x4C
64 #define VR_NEXTTXDESC0		0x50
65 #define VR_NEXTTXDESC1		0x54
66 #define VR_NEXTTXDESC2		0x58
67 #define VR_NEXTTXDESC3		0x5C
68 #define VR_CURRXDMA		0x60	/* current RX DMA address */
69 #define VR_CURTXDMA		0x64	/* current TX DMA address */
70 #define VR_TALLYCNT		0x68	/* tally counter test register */
71 #define VR_PHYADDR		0x6C
72 #define VR_MIISTAT		0x6D
73 #define VR_BCR0			0x6E
74 #define VR_BCR1			0x6F
75 #define VR_MIICMD		0x70
76 #define VR_MIIADDR		0x71
77 #define VR_MIIDATA		0x72
78 #define VR_EECSR		0x74
79 #define VR_TEST			0x75
80 #define VR_GPIO			0x76
81 #define VR_CONFIG		0x78
82 #define VR_MPA_CNT		0x7C
83 #define VR_CRC_CNT		0x7E
84 #define VR_STICKHW		0x83
85 
86 /* Misc Registers */
87 #define VR_MISC_CR1		0x81
88 #define VR_MISCCR1_FORSRST	0x40
89 
90 /*
91  * RX config bits.
92  */
93 #define VR_RXCFG_RX_ERRPKTS	0x01
94 #define VR_RXCFG_RX_RUNT	0x02
95 #define VR_RXCFG_RX_MULTI	0x04
96 #define VR_RXCFG_RX_BROAD	0x08
97 #define VR_RXCFG_RX_PROMISC	0x10
98 #define VR_RXCFG_RX_THRESH	0xE0
99 
100 #define VR_RXTHRESH_32BYTES	0x00
101 #define VR_RXTHRESH_64BYTES	0x20
102 #define VR_RXTHRESH_128BYTES	0x40
103 #define VR_RXTHRESH_256BYTES	0x60
104 #define VR_RXTHRESH_512BYTES	0x80
105 #define VR_RXTHRESH_768BYTES	0xA0
106 #define VR_RXTHRESH_1024BYTES	0xC0
107 #define VR_RXTHRESH_STORENFWD	0xE0
108 
109 /*
110  * TX config bits.
111  */
112 #define VR_TXCFG_RSVD0		0x01
113 #define VR_TXCFG_LOOPBKMODE	0x06
114 #define VR_TXCFG_BACKOFF	0x08
115 #define VR_TXCFG_RSVD1		0x10
116 #define VR_TXCFG_TX_THRESH	0xE0
117 
118 #define VR_TXTHRESH_32BYTES	0x00
119 #define VR_TXTHRESH_64BYTES	0x20
120 #define VR_TXTHRESH_128BYTES	0x40
121 #define VR_TXTHRESH_256BYTES	0x60
122 #define VR_TXTHRESH_512BYTES	0x80
123 #define VR_TXTHRESH_768BYTES	0xA0
124 #define VR_TXTHRESH_1024BYTES	0xC0
125 #define VR_TXTHRESH_STORENFWD	0xE0
126 
127 /*
128  * Command register bits.
129  */
130 #define VR_CMD_INIT		0x0001
131 #define VR_CMD_START		0x0002
132 #define VR_CMD_STOP		0x0004
133 #define VR_CMD_RX_ON		0x0008
134 #define VR_CMD_TX_ON		0x0010
135 #define	VR_CMD_TX_GO		0x0020
136 #define VR_CMD_RX_GO		0x0040
137 #define VR_CMD_RSVD		0x0080
138 #define VR_CMD_RX_EARLY		0x0100
139 #define VR_CMD_TX_EARLY		0x0200
140 #define VR_CMD_FULLDUPLEX	0x0400
141 #define VR_CMD_TX_NOPOLL	0x0800
142 
143 #define VR_CMD_RESET		0x8000
144 
145 /*
146  * Interrupt status bits.
147  */
148 #define VR_ISR_RX_OK		0x0001	/* packet rx ok */
149 #define VR_ISR_TX_OK		0x0002	/* packet tx ok */
150 #define VR_ISR_RX_ERR		0x0004	/* packet rx with err */
151 #define VR_ISR_TX_ABRT		0x0008	/* tx aborted due to excess colls */
152 #define VR_ISR_TX_UNDERRUN	0x0010	/* tx buffer underflow */
153 #define VR_ISR_RX_NOBUF		0x0020	/* no rx buffer available */
154 #define VR_ISR_BUSERR		0x0040	/* PCI bus error */
155 #define VR_ISR_STATSOFLOW	0x0080	/* stats counter oflow */
156 #define VR_ISR_RX_EARLY		0x0100	/* rx early */
157 #define VR_ISR_LINKSTAT		0x0200	/* MII status change */
158 #define VR_ISR_ETI		0x0200	/* Tx early (3043/3071) */
159 #define VR_ISR_UDFI		0x0200	/* Tx FIFO underflow (3065) */
160 #define VR_ISR_RX_OFLOW		0x0400	/* rx FIFO overflow */
161 #define VR_ISR_RX_DROPPED	0x0800
162 #define VR_ISR_RX_NOBUF2	0x1000
163 #define VR_ISR_TX_ABRT2		0x2000
164 #define VR_ISR_LINKSTAT2	0x4000
165 #define VR_ISR_MAGICPACKET	0x8000
166 
167 /*
168  * Interrupt mask bits.
169  */
170 #define VR_IMR_RX_OK		0x0001	/* packet rx ok */
171 #define VR_IMR_TX_OK		0x0002	/* packet tx ok */
172 #define VR_IMR_RX_ERR		0x0004	/* packet rx with err */
173 #define VR_IMR_TX_ABRT		0x0008	/* tx aborted due to excess colls */
174 #define VR_IMR_TX_UNDERRUN	0x0010	/* tx buffer underflow */
175 #define VR_IMR_RX_NOBUF		0x0020	/* no rx buffer available */
176 #define VR_IMR_BUSERR		0x0040	/* PCI bus error */
177 #define VR_IMR_STATSOFLOW	0x0080	/* stats counter oflow */
178 #define VR_IMR_RX_EARLY		0x0100	/* rx early */
179 #define VR_IMR_LINKSTAT		0x0200	/* MII status change */
180 #define VR_IMR_RX_OFLOW		0x0400	/* rx FIFO overflow */
181 #define VR_IMR_RX_DROPPED	0x0800
182 #define VR_IMR_RX_NOBUF2	0x1000
183 #define VR_IMR_TX_ABRT2		0x2000
184 #define VR_IMR_LINKSTAT2	0x4000
185 #define VR_IMR_MAGICPACKET	0x8000
186 
187 #define VR_INTRS							\
188 	(VR_IMR_RX_OK|VR_IMR_TX_OK|VR_IMR_RX_NOBUF|			\
189 	VR_IMR_TX_ABRT|VR_IMR_TX_UNDERRUN|VR_IMR_BUSERR|		\
190 	VR_IMR_RX_ERR|VR_ISR_RX_DROPPED)
191 
192 /*
193  * MII status register.
194  */
195 
196 #define VR_MIISTAT_SPEED	0x01
197 #define VR_MIISTAT_LINKFAULT	0x02
198 #define VR_MIISTAT_MGTREADERR	0x04
199 #define VR_MIISTAT_MIIERR	0x08
200 #define VR_MIISTAT_PHYOPT	0x10
201 #define VR_MIISTAT_MDC_SPEED	0x20
202 #define VR_MIISTAT_RSVD		0x40
203 #define VR_MIISTAT_GPIO1POLL	0x80
204 
205 /*
206  * MII command register bits.
207  */
208 #define VR_MIICMD_CLK		0x01
209 #define VR_MIICMD_DATAOUT	0x02
210 #define VR_MIICMD_DATAIN	0x04
211 #define VR_MIICMD_DIR		0x08
212 #define VR_MIICMD_DIRECTPGM	0x10
213 #define VR_MIICMD_WRITE_ENB	0x20
214 #define VR_MIICMD_READ_ENB	0x40
215 #define VR_MIICMD_AUTOPOLL	0x80
216 
217 /*
218  * EEPROM control bits.
219  */
220 #define VR_EECSR_DATAIN		0x01	/* data out */
221 #define VR_EECSR_DATAOUT	0x02	/* data in */
222 #define VR_EECSR_CLK		0x04	/* clock */
223 #define VR_EECSR_CS		0x08	/* chip select */
224 #define VR_EECSR_DPM		0x10
225 #define VR_EECSR_LOAD		0x20
226 #define VR_EECSR_EMBP		0x40
227 #define VR_EECSR_EEPR		0x80
228 
229 #define VR_EECMD_WRITE		0x140
230 #define VR_EECMD_READ		0x180
231 #define VR_EECMD_ERASE		0x1c0
232 
233 /*
234  * Test register bits.
235  */
236 #define VR_TEST_TEST0		0x01
237 #define VR_TEST_TEST1		0x02
238 #define VR_TEST_TEST2		0x04
239 #define VR_TEST_TSTUD		0x08
240 #define VR_TEST_TSTOV		0x10
241 #define VR_TEST_BKOFF		0x20
242 #define VR_TEST_FCOL		0x40
243 #define VR_TEST_HBDES		0x80
244 
245 /*
246  * Config register bits.
247  */
248 #define VR_CFG_GPIO2OUTENB	0x00000001
249 #define VR_CFG_GPIO2OUT		0x00000002	/* gen. purp. pin */
250 #define VR_CFG_GPIO2IN		0x00000004	/* gen. purp. pin */
251 #define VR_CFG_AUTOOPT		0x00000008	/* enable rx/tx autopoll */
252 #define VR_CFG_MIIOPT		0x00000010
253 #define VR_CFG_MMIENB		0x00000020	/* memory mapped mode enb */
254 #define VR_CFG_JUMPER		0x00000040	/* PHY and oper. mode select */
255 #define VR_CFG_EELOAD		0x00000080	/* enable EEPROM programming */
256 #define VR_CFG_LATMENB		0x00000100	/* larency timer effect enb. */
257 #define VR_CFG_MRREADWAIT	0x00000200
258 #define VR_CFG_MRWRITEWAIT	0x00000400
259 #define VR_CFG_RX_ARB		0x00000800
260 #define VR_CFG_TX_ARB		0x00001000
261 #define VR_CFG_READMULTI	0x00002000
262 #define VR_CFG_TX_PACE		0x00004000
263 #define VR_CFG_TX_QDIS		0x00008000
264 #define VR_CFG_ROMSEL0		0x00010000
265 #define VR_CFG_ROMSEL1		0x00020000
266 #define VR_CFG_ROMSEL2		0x00040000
267 #define VR_CFG_ROMTIMESEL	0x00080000
268 #define VR_CFG_RSVD0		0x00100000
269 #define VR_CFG_ROMDLY		0x00200000
270 #define VR_CFG_ROMOPT		0x00400000
271 #define VR_CFG_RSVD1		0x00800000
272 #define VR_CFG_BACKOFFOPT	0x01000000
273 #define VR_CFG_BACKOFFMOD	0x02000000
274 #define VR_CFG_CAPEFFECT	0x04000000
275 #define VR_CFG_BACKOFFRAND	0x08000000
276 #define VR_CFG_MAGICKPACKET	0x10000000
277 #define VR_CFG_PCIREADLINE	0x20000000
278 #define VR_CFG_DIAG		0x40000000
279 #define VR_CFG_GPIOEN		0x80000000
280 
281 /* Sticky HW bits */
282 #define VR_STICKHW_DS0		0x01
283 #define VR_STICKHW_DS1		0x02
284 #define VR_STICKHW_WOL_ENB	0x04
285 #define VR_STICKHW_WOL_STS	0x08
286 #define VR_STICKHW_LEGWOL_ENB	0x80
287 
288 /*
289  * BCR0 register bits. (At least for the VT6102 chip.)
290  */
291 #define VR_BCR0_DMA_LENGTH      0x07
292 
293 #define VR_BCR0_DMA_32BYTES     0x00
294 #define VR_BCR0_DMA_64BYTES     0x01
295 #define VR_BCR0_DMA_128BYTES    0x02
296 #define VR_BCR0_DMA_256BYTES    0x03
297 #define VR_BCR0_DMA_512BYTES    0x04
298 #define VR_BCR0_DMA_1024BYTES   0x05
299 #define VR_BCR0_DMA_STORENFWD   0x07
300 
301 #define VR_BCR0_RX_THRESH       0x38
302 
303 #define VR_BCR0_RXTHRESHCFG     0x00
304 #define VR_BCR0_RXTHRESH64BYTES 0x08
305 #define VR_BCR0_RXTHRESH128BYTES 0x10
306 #define VR_BCR0_RXTHRESH256BYTES 0x18
307 #define VR_BCR0_RXTHRESH512BYTES 0x20
308 #define VR_BCR0_RXTHRESH1024BYTES 0x28
309 #define VR_BCR0_RXTHRESHSTORENFWD 0x38
310 #define VR_BCR0_EXTLED          0x40
311 #define VR_BCR0_MED2            0x80
312 
313 /*
314  * BCR1 register bits. (At least for the VT6102 chip.)
315  */
316 #define VR_BCR1_POT0            0x01
317 #define VR_BCR1_POT1            0x02
318 #define VR_BCR1_POT2            0x04
319 #define VR_BCR1_TX_THRESH       0x38
320 #define VR_BCR1_TXTHRESHCFG     0x00
321 #define VR_BCR1_TXTHRESH64BYTES 0x08
322 #define VR_BCR1_TXTHRESH128BYTES 0x10
323 #define VR_BCR1_TXTHRESH256BYTES 0x18
324 #define VR_BCR1_TXTHRESH512BYTES 0x20
325 #define VR_BCR1_TXTHRESH1024BYTES 0x28
326 #define VR_BCR1_TXTHRESHSTORENFWD 0x38
327 
328 /*
329  * Rhine TX/RX list structure.
330  */
331 
332 struct vr_desc {
333 	u_int32_t		vr_status;
334 	u_int32_t		vr_ctl;
335 	u_int32_t		vr_data;
336 	u_int32_t		vr_next;
337 };
338 
339 #define VR_RXSTAT_RXERR		0x00000001
340 #define VR_RXSTAT_CRCERR	0x00000002
341 #define VR_RXSTAT_FRAMEALIGNERR	0x00000004
342 #define VR_RXSTAT_FIFOOFLOW	0x00000008
343 #define VR_RXSTAT_GIANT		0x00000010
344 #define VR_RXSTAT_RUNT		0x00000020
345 #define VR_RXSTAT_BUSERR	0x00000040
346 #define VR_RXSTAT_BUFFERR	0x00000080
347 #define VR_RXSTAT_LASTFRAG	0x00000100
348 #define VR_RXSTAT_FIRSTFRAG	0x00000200
349 #define VR_RXSTAT_RLINK		0x00000400
350 #define VR_RXSTAT_RX_PHYS	0x00000800
351 #define VR_RXSTAT_RX_BROAD	0x00001000
352 #define VR_RXSTAT_RX_MULTI	0x00002000
353 #define VR_RXSTAT_RX_OK		0x00004000
354 #define VR_RXSTAT_RXLEN		0x07FF0000
355 #define VR_RXSTAT_RXLEN_EXT	0x78000000
356 #define VR_RXSTAT_OWN		0x80000000
357 
358 #define VR_RXBYTES(x)		((x & VR_RXSTAT_RXLEN) >> 16)
359 #define VR_RXSTAT (VR_RXSTAT_FIRSTFRAG|VR_RXSTAT_LASTFRAG|VR_RXSTAT_OWN)
360 
361 #define VR_RXCTL_BUFLEN		0x000007FF
362 #define VR_RXCTL_BUFLEN_EXT	0x00007800
363 #define VR_RXCTL_CHAIN		0x00008000
364 #define VR_RXCTL_RX_INTR	0x00800000
365 
366 #define VR_RXCTL (VR_RXCTL_CHAIN|VR_RXCTL_RX_INTR)
367 
368 #define VR_TXSTAT_DEFER		0x00000001
369 #define VR_TXSTAT_UNDERRUN	0x00000002
370 #define VR_TXSTAT_COLLCNT	0x00000078
371 #define VR_TXSTAT_SQE		0x00000080
372 #define VR_TXSTAT_ABRT		0x00000100
373 #define VR_TXSTAT_LATECOLL	0x00000200
374 #define VR_TXSTAT_CARRLOST	0x00000400
375 #define VR_TXSTAT_UDF		0x00000800
376 #define VR_TXSTAT_BUSERR	0x00002000
377 #define VR_TXSTAT_JABTIMEO	0x00004000
378 #define VR_TXSTAT_ERRSUM	0x00008000
379 #define VR_TXSTAT_OWN		0x80000000
380 
381 #define VR_TXCTL_BUFLEN		0x000007FF
382 #define VR_TXCTL_BUFLEN_EXT	0x00007800
383 #define VR_TXCTL_TLINK		0x00008000
384 #define VR_TXCTL_FIRSTFRAG	0x00200000
385 #define VR_TXCTL_LASTFRAG	0x00400000
386 #define VR_TXCTL_FINT		0x00800000
387 
388 #define VR_MAXFRAGS		16
389 #define VR_RX_LIST_CNT		64
390 #define VR_TX_LIST_CNT		128
391 #define VR_MIN_FRAMELEN		60
392 #define VR_RXLEN		1524
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 	bus_addr_t		vr_paddr;
406 	bus_dmamap_t		vr_map;
407 };
408 
409 struct vr_chain_onefrag {
410 	struct vr_desc		*vr_ptr;
411 	struct vr_chain_onefrag	*vr_nextdesc;
412 	struct mbuf 		*vr_mbuf;
413 	bus_addr_t		vr_paddr;
414 	bus_dmamap_t		vr_map;
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 device		sc_dev;		/* generic device structure */
456 	void *			sc_ih;		/* interrupt handler cookie */
457 	struct arpcom		arpcom;		/* interface info */
458 	bus_space_handle_t	vr_bhandle;	/* bus space handle */
459 	bus_space_tag_t		vr_btag;	/* bus space tag */
460 	bus_dma_tag_t		sc_dmat;
461 	struct vr_type		*vr_info;	/* Rhine adapter info */
462 	u_int8_t		vr_revid;	/* Rhine chip revision */
463 	u_int8_t		vr_flags;	/* See VR_F_* below */
464 	struct vr_list_data	*vr_ldata;
465 	struct vr_chain_data	vr_cdata;
466 	struct mii_data		sc_mii;
467 	struct timeout		sc_to;
468 	bus_dmamap_t		sc_listmap;	/* descriptor list map */
469 	bus_dma_segment_t	sc_listseg;
470 	int			sc_if_flags;
471 	int			sc_rxbufs;
472 };
473 
474 #define VR_F_RESTART		0x01		/* Restart unit on next tick */
475 
476 /*
477  * register space access macros
478  */
479 #define CSR_WRITE_4(sc, reg, val)	\
480 	bus_space_write_4(sc->vr_btag, sc->vr_bhandle, reg, val)
481 #define CSR_WRITE_2(sc, reg, val)	\
482 	bus_space_write_2(sc->vr_btag, sc->vr_bhandle, reg, val)
483 #define CSR_WRITE_1(sc, reg, val)	\
484 	bus_space_write_1(sc->vr_btag, sc->vr_bhandle, reg, val)
485 
486 #define CSR_READ_4(sc, reg)		\
487 	bus_space_read_4(sc->vr_btag, sc->vr_bhandle, reg)
488 #define CSR_READ_2(sc, reg)		\
489 	bus_space_read_2(sc->vr_btag, sc->vr_bhandle, reg)
490 #define CSR_READ_1(sc, reg)		\
491 	bus_space_read_1(sc->vr_btag, sc->vr_bhandle, reg)
492 
493 #define VR_TIMEOUT		1000
494 
495 /*
496  * General constants that are fun to know.
497  *
498  * VIA vendor ID
499  */
500 #define	VIA_VENDORID			0x1106
501 
502 /*
503  * VIA Rhine device IDs.
504  */
505 #define	VIA_DEVICEID_RHINE		0x3043
506 #define VIA_DEVICEID_RHINE_II		0x6100
507 #define VIA_DEVICEID_RHINE_II_2		0x3065
508 #define VIA_DEVICEID_RHINE_III		0x3106
509 #define VIA_DEVICEID_RHINE_III_M	0x3053
510 
511 /*
512  * Delta Electronics device ID.
513  */
514 #define DELTA_VENDORID			0x1500
515 
516 /*
517  * Delta device IDs.
518  */
519 #define DELTA_DEVICEID_RHINE_II		0x1320
520 
521 /*
522  * Addtron vendor ID.
523  */
524 #define ADDTRON_VENDORID		0x4033
525 
526 /*
527  * Addtron device IDs.
528  */
529 #define ADDTRON_DEVICEID_RHINE_II	0x1320
530 
531 
532 /*
533  * VIA Rhine revision IDs
534  */
535 
536 #define REV_ID_VT3043_E			0x04
537 #define REV_ID_VT3071_A			0x20
538 #define REV_ID_VT3071_B			0x21
539 #define REV_ID_VT3065_A			0x40
540 #define REV_ID_VT3065_B			0x41
541 #define REV_ID_VT3065_C			0x42
542 #define REV_ID_VT6102_APOLLO		0x74
543 #define REV_ID_VT6103			0x78
544 #define REV_ID_VT3106			0x80
545 #define REV_ID_VT3106_J			0x80	/* 0x80-0x8F */
546 #define REV_ID_VT3106_S			0x90	/* 0x90-0xA0 */
547 
548 /*
549  * PCI low memory base and low I/O base register, and
550  * other PCI registers.
551  */
552 
553 #define VR_PCI_VENDOR_ID	0x00
554 #define VR_PCI_DEVICE_ID	0x02
555 #define VR_PCI_COMMAND		0x04
556 #define VR_PCI_STATUS		0x06
557 #define VR_PCI_REVID		0x08
558 #define VR_PCI_CLASSCODE	0x09
559 #define VR_PCI_LATENCY_TIMER	0x0D
560 #define VR_PCI_HEADER_TYPE	0x0E
561 #define VR_PCI_LOIO		0x10
562 #define VR_PCI_LOMEM		0x14
563 #define VR_PCI_BIOSROM		0x30
564 #define VR_PCI_INTLINE		0x3C
565 #define VR_PCI_INTPIN		0x3D
566 #define VR_PCI_MINGNT		0x3E
567 #define VR_PCI_MINLAT		0x0F
568 #define VR_PCI_RESETOPT		0x48
569 #define VR_PCI_EEPROM_DATA	0x4C
570 #define VR_PCI_MODE		0x50
571 
572 #define VR_MODE3_MIION		0x04
573 
574 /* power management registers */
575 #define VR_PCI_CAPID		0xDC /* 8 bits */
576 #define VR_PCI_NEXTPTR		0xDD /* 8 bits */
577 #define VR_PCI_PWRMGMTCAP	0xDE /* 16 bits */
578 #define VR_PCI_PWRMGMTCTRL	0xE0 /* 16 bits */
579 
580 #define VR_PSTATE_MASK		0x0003
581 #define VR_PSTATE_D0		0x0000
582 #define VR_PSTATE_D1		0x0002
583 #define VR_PSTATE_D2		0x0002
584 #define VR_PSTATE_D3		0x0003
585 #define VR_PME_EN		0x0010
586 #define VR_PME_STATUS		0x8000
587