xref: /netbsd/sys/dev/ic/tulipvar.h (revision 6550d01e)
1 /*	$NetBSD: tulipvar.h,v 1.64 2009/04/17 15:22:35 cegger Exp $	*/
2 
3 /*-
4  * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9  * NASA Ames Research Center.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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 THE
30  * POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 #ifndef _DEV_IC_TULIPVAR_H_
34 #define	_DEV_IC_TULIPVAR_H_
35 
36 #include "rnd.h"
37 
38 #include <sys/queue.h>
39 #include <sys/callout.h>
40 
41 #if NRND > 0
42 #include <sys/rnd.h>
43 #endif
44 
45 /*
46  * Misc. definitions for the Digital Semiconductor ``Tulip'' (21x4x)
47  * Ethernet controller family driver.
48  */
49 
50 /*
51  * Transmit descriptor list size.  This is arbitrary, but allocate
52  * enough descriptors for 64 pending transmissions and 16 segments
53  * per packet.  Since a descriptor holds 2 buffer addresses, that's
54  * 8 descriptors per packet.  This MUST work out to a power of 2.
55  */
56 #define	TULIP_NTXSEGS		16
57 
58 #define	TULIP_TXQUEUELEN	64
59 #define	TULIP_NTXDESC		(TULIP_TXQUEUELEN * TULIP_NTXSEGS)
60 #define	TULIP_NTXDESC_MASK	(TULIP_NTXDESC - 1)
61 #define	TULIP_NEXTTX(x)		((x + 1) & TULIP_NTXDESC_MASK)
62 
63 /*
64  * Receive descriptor list size.  We have one Rx buffer per incoming
65  * packet, so this logic is a little simpler.
66  */
67 #define	TULIP_NRXDESC		64
68 #define	TULIP_NRXDESC_MASK	(TULIP_NRXDESC - 1)
69 #define	TULIP_NEXTRX(x)		((x + 1) & TULIP_NRXDESC_MASK)
70 
71 /*
72  * Control structures are DMA'd to the TULIP chip.  We allocate them in
73  * a single clump that maps to a single DMA segment to make several things
74  * easier.
75  */
76 struct tulip_control_data {
77 	/*
78 	 * The transmit descriptors.
79 	 */
80 	struct tulip_desc tcd_txdescs[TULIP_NTXDESC];
81 
82 	/*
83 	 * The receive descriptors.
84 	 */
85 	struct tulip_desc tcd_rxdescs[TULIP_NRXDESC];
86 
87 	/*
88 	 * The setup packet.
89 	 */
90 	uint32_t tcd_setup_packet[TULIP_SETUP_PACKET_LEN / sizeof(uint32_t)];
91 };
92 
93 #define	TULIP_CDOFF(x)		offsetof(struct tulip_control_data, x)
94 #define	TULIP_CDTXOFF(x)	TULIP_CDOFF(tcd_txdescs[(x)])
95 #define	TULIP_CDRXOFF(x)	TULIP_CDOFF(tcd_rxdescs[(x)])
96 #define	TULIP_CDSPOFF		TULIP_CDOFF(tcd_setup_packet)
97 
98 /*
99  * Software state for transmit jobs.
100  */
101 struct tulip_txsoft {
102 	struct mbuf *txs_mbuf;		/* head of our mbuf chain */
103 	bus_dmamap_t txs_dmamap;	/* our DMA map */
104 	int txs_firstdesc;		/* first descriptor in packet */
105 	int txs_lastdesc;		/* last descriptor in packet */
106 	int txs_ndescs;			/* number of descriptors */
107 	SIMPLEQ_ENTRY(tulip_txsoft) txs_q;
108 };
109 
110 SIMPLEQ_HEAD(tulip_txsq, tulip_txsoft);
111 
112 /*
113  * Software state for receive jobs.
114  */
115 struct tulip_rxsoft {
116 	struct mbuf *rxs_mbuf;		/* head of our mbuf chain */
117 	bus_dmamap_t rxs_dmamap;	/* our DMA map */
118 };
119 
120 /*
121  * Type of Tulip chip we're dealing with.
122  */
123 typedef enum {
124 	TULIP_CHIP_INVALID   = 0,	/* invalid chip type */
125 	TULIP_CHIP_DE425     = 1,	/* DE-425 EISA */
126 	TULIP_CHIP_21040     = 2,	/* DECchip 21040 */
127 	TULIP_CHIP_21041     = 3,	/* DECchip 21041 */
128 	TULIP_CHIP_21140     = 4,	/* DECchip 21140 */
129 	TULIP_CHIP_21140A    = 5,	/* DECchip 21140A */
130 	TULIP_CHIP_21142     = 6,	/* DECchip 21142 */
131 	TULIP_CHIP_21143     = 7,	/* DECchip 21143 */
132 	TULIP_CHIP_82C168    = 8,	/* Lite-On 82C168 PNIC */
133 	TULIP_CHIP_82C169    = 9,	/* Lite-On 82C169 PNIC */
134 	TULIP_CHIP_82C115    = 10,	/* Lite-On 82C115 PNIC II */
135 	TULIP_CHIP_MX98713   = 11,	/* Macronix 98713 PMAC */
136 	TULIP_CHIP_MX98713A  = 12,	/* Macronix 98713A PMAC */
137 	TULIP_CHIP_MX98715   = 13,	/* Macronix 98715 PMAC */
138 	TULIP_CHIP_MX98715A  = 14,	/* Macronix 98715A PMAC */
139 	TULIP_CHIP_MX98715AEC_X = 15,	/* Macronix 98715AEC-C, -E PMAC */
140 	TULIP_CHIP_MX98725   = 16,	/* Macronix 98725 PMAC */
141 	TULIP_CHIP_WB89C840F = 17,	/* Winbond 89C840F */
142 	TULIP_CHIP_DM9102    = 18,	/* Davicom DM9102 */
143 	TULIP_CHIP_DM9102A   = 19,	/* Davicom DM9102A */
144 	TULIP_CHIP_AL981     = 20,	/* ADMtek AL981 */
145 	TULIP_CHIP_AN983     = 21,	/* ADMtek AN983 */
146 	TULIP_CHIP_AN985     = 22,	/* ADMtek AN985 */
147 	TULIP_CHIP_AX88140   = 23,	/* ASIX AX88140 */
148 	TULIP_CHIP_AX88141   = 24,	/* ASIX AX88141 */
149 	TULIP_CHIP_X3201_3   = 25,	/* Xircom X3201-3 */
150 	TULIP_CHIP_RS7112    = 26	/* Conexant RS7112 LANfinity */
151 } tulip_chip_t;
152 
153 #define	TULIP_CHIP_NAMES						\
154 {									\
155 	NULL,								\
156 	"DE-425",							\
157 	"DECchip 21040",						\
158 	"DECchip 21041",						\
159 	"DECchip 21140",						\
160 	"DECchip 21140A",						\
161 	"DECchip 21142",						\
162 	"DECchip 21143",						\
163 	"Lite-On 82C168",						\
164 	"Lite-On 82C169",						\
165 	"Lite-On 82C115",						\
166 	"Macronix MX98713",						\
167 	"Macronix MX98713A",						\
168 	"Macronix MX98715",						\
169 	"Macronix MX98715A",						\
170 	"Macronix MX98715AEC-x",					\
171 	"Macronix MX98725",						\
172 	"Winbond 89C840F",						\
173 	"Davicom DM9102",						\
174 	"Davicom DM9102A",						\
175 	"ADMtek AL981",							\
176 	"ADMtek AN983",							\
177 	"ADMtek AN985",							\
178 	"ASIX AX88140",							\
179 	"ASIX AX88141",							\
180 	"Xircom X3201-3",						\
181 	"Conexant RS7112",						\
182 }
183 
184 struct tulip_softc;
185 
186 /*
187  * Media init, change, status function pointers.
188  */
189 struct tulip_mediasw {
190 	void	(*tmsw_init)(struct tulip_softc *);
191 	void	(*tmsw_get)(struct tulip_softc *, struct ifmediareq *);
192 	int	(*tmsw_set)(struct tulip_softc *);
193 };
194 
195 /*
196  * Table which describes the transmit threshold mode.  We generally
197  * start at index 0.  Whenever we get a transmit underrun, we increment
198  * our index, falling back if we encounter the NULL terminator.
199  */
200 struct tulip_txthresh_tab {
201 	uint32_t txth_opmode;		/* OPMODE bits */
202 	const char *txth_name;		/* name of mode */
203 };
204 
205 #define	TLP_TXTHRESH_TAB_10 {						\
206 	{ OPMODE_TR_72,		"72 bytes" },				\
207 	{ OPMODE_TR_96,		"96 bytes" },				\
208 	{ OPMODE_TR_128,	"128 bytes" },				\
209 	{ OPMODE_TR_160,	"160 bytes" },				\
210 	{ 0,			NULL },					\
211 }
212 
213 #define	TLP_TXTHRESH_TAB_10_100 {					\
214 	{ OPMODE_TR_72,		"72/128 bytes" },			\
215 	{ OPMODE_TR_96,		"96/256 bytes" },			\
216 	{ OPMODE_TR_128,	"128/512 bytes" },			\
217 	{ OPMODE_TR_160,	"160/1024 bytes" },			\
218 	{ OPMODE_SF,		"store and forward mode" },		\
219 	{ 0,			NULL },					\
220 }
221 
222 #define	TXTH_72			0
223 #define	TXTH_96			1
224 #define	TXTH_128		2
225 #define	TXTH_160		3
226 #define	TXTH_SF			4
227 
228 #define	TLP_TXTHRESH_TAB_DM9102 {					\
229 	{ OPMODE_TR_72,		"72/128 bytes" },			\
230 	{ OPMODE_TR_96,		"96/256 bytes" },			\
231 	{ OPMODE_TR_128,	"128/512 bytes" },			\
232 	{ OPMODE_SF,		"store and forward mode" },		\
233 	{ 0,			NULL },					\
234 }
235 
236 #define	TXTH_DM9102_72		0
237 #define	TXTH_DM9102_96		1
238 #define	TXTH_DM9102_128		2
239 #define	TXTH_DM9102_SF		3
240 
241 /*
242  * The Winbond 89C840F does transmit threshold control totally
243  * differently.  It simply has a 7-bit field which indicates
244  * the threshold:
245  *
246  *	txth = ((OPMODE & OPMODE_WINB_TTH) >> OPMODE_WINB_TTH_SHIFT) * 16;
247  *
248  * However, we just do Store-and-Forward mode on these chips, since
249  * the DMA engines seem to be flaky.
250  */
251 #define	TLP_TXTHRESH_TAB_WINB {						\
252 	{ 0,			"store and forward mode" },		\
253 	{ 0,			NULL },					\
254 }
255 
256 #define	TXTH_WINB_SF		0
257 
258 /*
259  * Settings for Tulip SIA media.
260  */
261 struct tulip_sia_media {
262 	uint32_t	tsm_siaconn;	/* CSR13 value */
263 	uint32_t	tsm_siatxrx;	/* CSR14 value */
264 	uint32_t	tsm_siagen;	/* CSR15 value */
265 };
266 
267 /*
268  * Description of 2x14x media.
269  */
270 struct tulip_21x4x_media {
271 	int		tm_type;	/* type of media; see tulipreg.h */
272 	const char	*tm_name;	/* name of media */
273 
274 	void		(*tm_get)(struct tulip_softc *, struct ifmediareq *);
275 	int		(*tm_set)(struct tulip_softc *);
276 
277 	int		tm_phyno;	/* PHY # on MII */
278 
279 	int		tm_gp_length;	/* MII select sequence length */
280 	int		tm_gp_offset;	/* MII select sequence offset */
281 
282 	int		tm_reset_length;/* MII reset sequence length */
283 	int		tm_reset_offset;/* MII reset sequence offset */
284 
285 	uint32_t	tm_opmode;	/* OPMODE bits for this media */
286 	uint32_t	tm_gpctl;	/* GPIO control bits for this media */
287 	uint32_t	tm_gpdata;	/* GPIO bits for this media */
288 	uint32_t	tm_actmask;	/* `active' bits for this data */
289 	uint32_t	tm_actdata;	/* active high/low info */
290 
291 	struct tulip_sia_media tm_sia;	/* SIA settings */
292 #define	tm_siaconn	tm_sia.tsm_siaconn
293 #define	tm_siatxrx	tm_sia.tsm_siatxrx
294 #define	tm_siagen	tm_sia.tsm_siagen
295 };
296 
297 /*
298  * Table for converting Tulip SROM media info into ifmedia data.
299  */
300 struct tulip_srom_to_ifmedia {
301 	uint8_t	tsti_srom;	/* SROM media type */
302 	int		tsti_subtype;	/* ifmedia subtype */
303 	int		tsti_options;	/* ifmedia options */
304 	const char	*tsti_name;	/* media name */
305 
306 	uint32_t	tsti_opmode;	/* OPMODE bits for this media */
307 	uint32_t	tsti_sia_cap;	/* "MII" capabilities for this media */
308 
309 	/*
310 	 * Settings for 21040, 21041, and 21142/21143 SIA, in the event
311 	 * the SROM doesn't have them.
312 	 */
313 	struct tulip_sia_media tsti_21040;
314 	struct tulip_sia_media tsti_21041;
315 	struct tulip_sia_media tsti_21142;
316 };
317 
318 /*
319  * Some misc. statics, useful for debugging.
320  */
321 struct tulip_stats {
322 	u_long		ts_tx_uf;	/* transmit underflow errors */
323 	u_long		ts_tx_to;	/* transmit jabber timeouts */
324 	u_long		ts_tx_ec;	/* excessive collision count */
325 	u_long		ts_tx_lc;	/* late collision count */
326 };
327 
328 #ifndef _STANDALONE
329 /*
330  * Software state per device.
331  */
332 struct tulip_softc {
333 	device_t sc_dev;		/* generic device information */
334 	bus_space_tag_t sc_st;		/* bus space tag */
335 	bus_space_handle_t sc_sh;	/* bus space handle */
336 	bus_dma_tag_t sc_dmat;		/* bus DMA tag */
337 	struct ethercom sc_ethercom;	/* ethernet common data */
338 
339 	struct tulip_stats sc_stats;	/* debugging stats */
340 
341 	/*
342 	 * Contents of the SROM.
343 	 */
344 	uint8_t *sc_srom;
345 	int sc_srom_addrbits;
346 
347 	/*
348 	 * Media access functions for this chip.
349 	 */
350 	const struct tulip_mediasw *sc_mediasw;
351 	mii_bitbang_ops_t sc_bitbang_ops;
352 
353 	/*
354 	 * For chips with built-in NWay blocks, these are state
355 	 * variables required for autonegotiation.
356 	 */
357 	int		sc_nway_ticks;	/* tick counter */
358 	struct ifmedia_entry *sc_nway_active; /* the active media */
359 	struct callout	sc_nway_callout;
360 
361 	tulip_chip_t	sc_chip;	/* chip type */
362 	int		sc_rev;		/* chip revision */
363 	int		sc_flags;	/* misc flags. */
364 	char		sc_name[32];	/* board name */
365 	uint32_t	sc_cacheline;	/* cache line size */
366 	uint32_t	sc_maxburst;	/* maximum burst length */
367 	int		sc_devno;	/* PCI device # */
368 
369 	struct mii_data sc_mii;		/* MII/media information */
370 
371 	const struct tulip_txthresh_tab *sc_txth;
372 	int		sc_txthresh;	/* current transmit threshold */
373 
374 	uint8_t	sc_gp_dir;	/* GPIO pin direction bits (21140) */
375 	int		sc_media_seen;	/* ISV media block types seen */
376 	int		sc_tlp_minst;	/* Tulip internal media instance */
377 	uint32_t	sc_sia_cap;	/* SIA media capabilities (21143) */
378 
379 	/* Reset function. */
380 	void		(*sc_reset)(struct tulip_softc *);
381 
382 	/* Pre-init function. */
383 	void		(*sc_preinit)(struct tulip_softc *);
384 
385 	/* Filter setup function. */
386 	void		(*sc_filter_setup)(struct tulip_softc *);
387 
388 	/* Media status update function. */
389 	void		(*sc_statchg)(device_t);
390 
391 	/* Media tick function. */
392 	void		(*sc_tick)(void *);
393 	struct callout sc_tick_callout;
394 
395 	/* Power management hooks. */
396 	int		(*sc_enable)(struct tulip_softc *);
397 	void		(*sc_disable)(struct tulip_softc *);
398 	void		(*sc_power)(struct tulip_softc *, int);
399 
400 	/*
401 	 * The Winbond 89C840F places registers 4 bytes apart, instead
402 	 * of 8.
403 	 */
404 	int		sc_regshift;
405 
406 	uint32_t	sc_busmode;	/* copy of CSR_BUSMODE */
407 	uint32_t	sc_opmode;	/* copy of CSR_OPMODE */
408 	uint32_t	sc_inten;	/* copy of CSR_INTEN */
409 
410 	uint32_t	sc_rxint_mask;	/* mask of Rx interrupts we want */
411 	uint32_t	sc_txint_mask;	/* mask of Tx interrupts we want */
412 
413 	uint32_t	sc_filtmode;	/* filter mode we're using */
414 
415 	bus_dma_segment_t sc_cdseg;	/* control data memory */
416 	int		sc_cdnseg;	/* number of segments */
417 	bus_dmamap_t sc_cddmamap;	/* control data DMA map */
418 #define	sc_cddma	sc_cddmamap->dm_segs[0].ds_addr
419 
420 	/*
421 	 * Software state for transmit and receive descriptors.
422 	 */
423 	struct tulip_txsoft sc_txsoft[TULIP_TXQUEUELEN];
424 	struct tulip_rxsoft sc_rxsoft[TULIP_NRXDESC];
425 
426 	/*
427 	 * Control data structures.
428 	 */
429 	struct tulip_control_data *sc_control_data;
430 #define	sc_txdescs	sc_control_data->tcd_txdescs
431 #define	sc_rxdescs	sc_control_data->tcd_rxdescs
432 #define	sc_setup_desc	sc_control_data->tcd_setup_desc
433 
434 	int	sc_txfree;		/* number of free Tx descriptors */
435 	int	sc_txnext;		/* next ready Tx descriptor */
436 	int	sc_ntxsegs;		/* number of transmit segs per pkt */
437 
438 	uint32_t sc_tdctl_ch;		/* conditional desc chaining */
439 	uint32_t sc_tdctl_er;		/* conditional desc end-of-ring */
440 
441 	uint32_t sc_setup_fsls;	/* FS|LS on setup descriptor */
442 
443 	struct tulip_txsq sc_txfreeq;	/* free Tx descsofts */
444 	struct tulip_txsq sc_txdirtyq;	/* dirty Tx descsofts */
445 
446 	short	sc_if_flags;
447 
448 	int	sc_rxptr;		/* next ready RX descriptor/descsoft */
449 
450 #if NRND > 0
451 	rndsource_element_t sc_rnd_source; /* random source */
452 #endif
453 };
454 #endif
455 
456 /* sc_flags */
457 #define	TULIPF_WANT_SETUP	0x00000001	/* want filter setup */
458 #define	TULIPF_DOING_SETUP	0x00000002	/* doing multicast setup */
459 #define	TULIPF_HAS_MII		0x00000004	/* has media on MII */
460 #define	TULIPF_IC_FS		0x00000008	/* IC bit on first tx seg */
461 #define	TULIPF_MRL		0x00000010	/* memory read line okay */
462 #define	TULIPF_MRM		0x00000020	/* memory read multi okay */
463 #define	TULIPF_MWI		0x00000040	/* memory write inval okay */
464 #define	TULIPF_AUTOPOLL		0x00000080	/* chip supports auto-poll */
465 #define	TULIPF_LINK_UP		0x00000100	/* link is up (non-MII) */
466 #define	TULIPF_LINK_VALID	0x00000200	/* link state valid */
467 #define	TULIPF_DOINGAUTO	0x00000400	/* doing autoneg (non-MII) */
468 #define	TULIPF_ATTACHED		0x00000800	/* attach has succeeded */
469 #define	TULIPF_ENABLED		0x00001000	/* chip is enabled */
470 #define	TULIPF_BLE		0x00002000	/* data is big endian */
471 #define	TULIPF_DBO		0x00004000	/* descriptor is big endian */
472 #define	TULIPF_VPC		0x00008000	/* Virtual PC Ethernet */
473 
474 #define	TULIP_IS_ENABLED(sc)	((sc)->sc_flags & TULIPF_ENABLED)
475 
476 /*
477  * This macro returns the current media entry.
478  */
479 #define	TULIP_CURRENT_MEDIA(sc) ((sc)->sc_mii.mii_media.ifm_cur)
480 
481 /*
482  * This macro determines if a change to media-related OPMODE bits requires
483  * a chip reset.
484  */
485 #define	TULIP_MEDIA_NEEDSRESET(sc, newbits)				\
486 	(((sc)->sc_opmode & OPMODE_MEDIA_BITS) !=			\
487 	 ((newbits) & OPMODE_MEDIA_BITS))
488 
489 #define	TULIP_CDTXADDR(sc, x)	((sc)->sc_cddma + TULIP_CDTXOFF((x)))
490 #define	TULIP_CDRXADDR(sc, x)	((sc)->sc_cddma + TULIP_CDRXOFF((x)))
491 
492 #define	TULIP_CDSPADDR(sc)	((sc)->sc_cddma + TULIP_CDSPOFF)
493 
494 #define	TULIP_CDSP(sc)		((sc)->sc_control_data->tcd_setup_packet)
495 
496 #define	TULIP_CDTXSYNC(sc, x, n, ops)					\
497 do {									\
498 	int __x, __n;							\
499 									\
500 	__x = (x);							\
501 	__n = (n);							\
502 									\
503 	/* If it will wrap around, sync to the end of the ring. */	\
504 	if ((__x + __n) > TULIP_NTXDESC) {				\
505 		bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap,	\
506 		    TULIP_CDTXOFF(__x), sizeof(struct tulip_desc) *	\
507 		    (TULIP_NTXDESC - __x), (ops));			\
508 		__n -= (TULIP_NTXDESC - __x);				\
509 		__x = 0;						\
510 	}								\
511 									\
512 	/* Now sync whatever is left. */				\
513 	bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap,		\
514 	    TULIP_CDTXOFF(__x), sizeof(struct tulip_desc) * __n, (ops)); \
515 } while (0)
516 
517 #define	TULIP_CDRXSYNC(sc, x, ops)					\
518 	bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap,		\
519 	    TULIP_CDRXOFF((x)), sizeof(struct tulip_desc), (ops))
520 
521 #define	TULIP_CDSPSYNC(sc, ops)						\
522 	bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_cddmamap,		\
523 	    TULIP_CDSPOFF, TULIP_SETUP_PACKET_LEN, (ops))
524 
525 /*
526  * Note we rely on MCLBYTES being a power of two.  Because the `length'
527  * field is only 11 bits, we must subtract 1 from the length to avoid
528  * having it truncated to 0!
529  */
530 #define	TULIP_INIT_RXDESC(sc, x)					\
531 do {									\
532 	struct tulip_rxsoft *__rxs = &sc->sc_rxsoft[(x)];		\
533 	struct tulip_desc *__rxd = &sc->sc_rxdescs[(x)];		\
534 	struct mbuf *__m = __rxs->rxs_mbuf;				\
535 									\
536 	__m->m_data = __m->m_ext.ext_buf;				\
537 	__rxd->td_bufaddr1 =						\
538 	    htole32(__rxs->rxs_dmamap->dm_segs[0].ds_addr);		\
539 	__rxd->td_bufaddr2 =						\
540 	    htole32(TULIP_CDRXADDR((sc), TULIP_NEXTRX((x))));		\
541 	__rxd->td_ctl =							\
542 	    htole32((((__m->m_ext.ext_size - 1) & ~0x3U)		\
543 	    << TDCTL_SIZE1_SHIFT) | (sc)->sc_tdctl_ch |			\
544 	    ((x) == (TULIP_NRXDESC - 1) ? sc->sc_tdctl_er : 0));	\
545 	__rxd->td_status = htole32(TDSTAT_OWN|TDSTAT_Rx_FS|TDSTAT_Rx_LS); \
546 	TULIP_CDRXSYNC((sc), (x), BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); \
547 } while (0)
548 
549 /* CSR access */
550 #define	TULIP_CSR_OFFSET(sc, csr)					\
551 	(TULIP_CSR_INDEX(csr) << (sc)->sc_regshift)
552 
553 #define	TULIP_READ(sc, reg)						\
554 	bus_space_read_4((sc)->sc_st, (sc)->sc_sh,			\
555 	    TULIP_CSR_OFFSET((sc), (reg)))
556 
557 #define	TULIP_WRITE(sc, reg, val)					\
558 	bus_space_write_4((sc)->sc_st, (sc)->sc_sh,			\
559 	    TULIP_CSR_OFFSET((sc), (reg)), (val))
560 
561 #define	TULIP_SET(sc, reg, mask)					\
562 	TULIP_WRITE((sc), (reg), TULIP_READ((sc), (reg)) | (mask))
563 
564 #define	TULIP_CLR(sc, reg, mask)					\
565 	TULIP_WRITE((sc), (reg), TULIP_READ((sc), (reg)) & ~(mask))
566 
567 #define	TULIP_ISSET(sc, reg, mask)					\
568 	(TULIP_READ((sc), (reg)) & (mask))
569 
570 #define	TULIP_SP_FIELD_C(a, b)	((b) << 8 | (a))
571 #define	TULIP_SP_FIELD(x, f)	TULIP_SP_FIELD_C((x)[f * 2], (x)[f * 2 + 1])
572 
573 #ifdef _KERNEL
574 extern const char * const tlp_chip_names[];
575 
576 extern const struct tulip_mediasw tlp_21040_mediasw;
577 extern const struct tulip_mediasw tlp_21040_tp_mediasw;
578 extern const struct tulip_mediasw tlp_21040_auibnc_mediasw;
579 extern const struct tulip_mediasw tlp_21041_mediasw;
580 extern const struct tulip_mediasw tlp_2114x_isv_mediasw;
581 extern const struct tulip_mediasw tlp_sio_mii_mediasw;
582 extern const struct tulip_mediasw tlp_pnic_mediasw;
583 extern const struct tulip_mediasw tlp_pmac_mediasw;
584 extern const struct tulip_mediasw tlp_al981_mediasw;
585 extern const struct tulip_mediasw tlp_an985_mediasw;
586 extern const struct tulip_mediasw tlp_dm9102_mediasw;
587 extern const struct tulip_mediasw tlp_asix_mediasw;
588 extern const struct tulip_mediasw tlp_rs7112_mediasw;
589 
590 int	tlp_attach(struct tulip_softc *, const uint8_t *);
591 int	tlp_activate(device_t, enum devact);
592 int	tlp_detach(struct tulip_softc *);
593 int	tlp_intr(void *);
594 int	tlp_read_srom(struct tulip_softc *);
595 int	tlp_srom_crcok(const uint8_t *);
596 int	tlp_isv_srom(const uint8_t *);
597 int	tlp_isv_srom_enaddr(struct tulip_softc *, uint8_t *);
598 int	tlp_parse_old_srom(struct tulip_softc *, uint8_t *);
599 void	tlp_reset(struct tulip_softc *);
600 void	tlp_idle(struct tulip_softc *, uint32_t);
601 
602 int	tlp_mediachange(struct ifnet *);
603 void	tlp_mediastatus(struct ifnet *, struct ifmediareq *);
604 
605 void	tlp_21140_gpio_get(struct tulip_softc *sc, struct ifmediareq *ifmr);
606 int	tlp_21140_gpio_set(struct tulip_softc *sc);
607 
608 #endif /* _KERNEL */
609 
610 #endif /* _DEV_IC_TULIPVAR_H_ */
611