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#define XL_EE_READ	0x0080	/* read, 5 bit address */
36#define XL_EE_WRITE	0x0040	/* write, 5 bit address */
37#define XL_EE_ERASE	0x00c0	/* erase, 5 bit address */
38#define XL_EE_EWEN	0x0030	/* erase, no data needed */
39#define XL_EE_8BIT_READ	0x0200	/* read, 8 bit address */
40#define XL_EE_BUSY	0x8000
41
42#define XL_EE_EADDR0	0x00	/* station address, first word */
43#define XL_EE_EADDR1	0x01	/* station address, next word, */
44#define XL_EE_EADDR2	0x02	/* station address, last word */
45#define XL_EE_PRODID	0x03	/* product ID code */
46#define XL_EE_MDATA_DATE	0x04	/* manufacturing data, date */
47#define XL_EE_MDATA_DIV		0x05	/* manufacturing data, division */
48#define XL_EE_MDATA_PCODE	0x06	/* manufacturing data, product code */
49#define XL_EE_MFG_ID	0x07
50#define XL_EE_PCI_PARM	0x08
51#define XL_EE_ROM_ONFO	0x09
52#define XL_EE_OEM_ADR0	0x0A
53#define XL_EE_OEM_ADR1	0x0B
54#define XL_EE_OEM_ADR2	0x0C
55#define XL_EE_SOFTINFO1	0x0D
56#define XL_EE_COMPAT	0x0E
57#define XL_EE_SOFTINFO2	0x0F
58#define XL_EE_CAPS	0x10	/* capabilities word */
59#define XL_EE_RSVD0	0x11
60#define XL_EE_ICFG_0	0x12
61#define XL_EE_ICFG_1	0x13
62#define XL_EE_RSVD1	0x14
63#define XL_EE_SOFTINFO3	0x15
64#define XL_EE_RSVD_2	0x16
65
66/*
67 * Bits in the capabilities word
68 */
69#define XL_CAPS_PNP		0x0001
70#define XL_CAPS_FULL_DUPLEX	0x0002
71#define XL_CAPS_LARGE_PKTS	0x0004
72#define XL_CAPS_SLAVE_DMA	0x0008
73#define XL_CAPS_SECOND_DMA	0x0010
74#define XL_CAPS_FULL_BM		0x0020
75#define XL_CAPS_FRAG_BM		0x0040
76#define XL_CAPS_CRC_PASSTHRU	0x0080
77#define XL_CAPS_TXDONE		0x0100
78#define XL_CAPS_NO_TXLENGTH	0x0200
79#define XL_CAPS_RX_REPEAT	0x0400
80#define XL_CAPS_SNOOPING	0x0800
81#define XL_CAPS_100MBPS		0x1000
82#define XL_CAPS_PWRMGMT		0x2000
83
84/*
85 * Bits in the software information 2 word
86 */
87#define	XL_SINFO2_FIXED_BCAST_RX_BUG	0x0002
88#define	XL_SINFO2_FIXED_ENDEC_LOOP_BUG	0x0004
89#define	XL_SINFO2_AUX_WOL_CON		0x0008
90#define	XL_SINFO2_PME_PULSED		0x0010
91#define	XL_SINFO2_FIXED_MWI_BUG		0x0020
92#define	XL_SINFO2_WOL_AFTER_PWR_LOSS	0x0040
93#define	XL_SINFO2_AUTO_RST_TO_D0	0x0080
94
95#define XL_PACKET_SIZE 1540
96#define XL_MAX_FRAMELEN	(ETHER_MAX_LEN + ETHER_VLAN_ENCAP_LEN)
97
98/*
99 * Register layouts.
100 */
101#define XL_COMMAND		0x0E
102#define XL_STATUS		0x0E
103
104#define XL_TX_STATUS		0x1B
105#define XL_TX_FREE		0x1C
106#define XL_DMACTL		0x20
107#define XL_DOWNLIST_PTR		0x24
108#define XL_DOWN_POLL		0x2D /* 3c90xB only */
109#define XL_TX_FREETHRESH	0x2F
110#define XL_UPLIST_PTR		0x38
111#define XL_UPLIST_STATUS	0x30
112#define XL_UP_POLL		0x3D /* 3c90xB only */
113
114#define XL_PKTSTAT_UP_STALLED		0x00002000
115#define XL_PKTSTAT_UP_ERROR		0x00004000
116#define XL_PKTSTAT_UP_CMPLT		0x00008000
117
118#define XL_DMACTL_DN_CMPLT_REQ		0x00000002
119#define XL_DMACTL_DOWN_STALLED		0x00000004
120#define XL_DMACTL_UP_CMPLT		0x00000008
121#define XL_DMACTL_DOWN_CMPLT		0x00000010
122#define XL_DMACTL_UP_RX_EARLY		0x00000020
123#define XL_DMACTL_ARM_COUNTDOWN		0x00000040
124#define XL_DMACTL_DOWN_INPROG		0x00000080
125#define XL_DMACTL_COUNTER_SPEED		0x00000100
126#define XL_DMACTL_DOWNDOWN_MODE		0x00000200
127#define XL_DMACTL_UP_ALTSEQ_DIS		0x00010000	/* 3c90xB/3c90xC */
128#define XL_DMACTL_DOWN_ALTSEQ_DIS	0x00020000	/* 3c90xC only */
129#define XL_DMACTL_DEFEAT_MWI		0x00100000	/* 3c90xB/3c90xC */
130#define XL_DMACTL_DEFEAT_MRL		0x00100000	/* 3c90xB/3c90xC */
131#define XL_DMACTL_UP_OVERRUN_DISC_DIS	0x00200000	/* 3c90xB/3c90xC */
132#define XL_DMACTL_TARGET_ABORT		0x40000000
133#define XL_DMACTL_MASTER_ABORT		0x80000000
134
135/*
136 * Command codes. Some command codes require that we wait for
137 * the CMD_BUSY flag to clear. Those codes are marked as 'mustwait.'
138 */
139#define XL_CMD_RESET		0x0000	/* mustwait */
140#define XL_CMD_WINSEL		0x0800
141#define XL_CMD_COAX_START	0x1000
142#define XL_CMD_RX_DISABLE	0x1800
143#define XL_CMD_RX_ENABLE	0x2000
144#define XL_CMD_RX_RESET		0x2800	/* mustwait */
145#define XL_CMD_UP_STALL		0x3000	/* mustwait */
146#define XL_CMD_UP_UNSTALL	0x3001
147#define XL_CMD_DOWN_STALL	0x3002	/* mustwait */
148#define XL_CMD_DOWN_UNSTALL	0x3003
149#define XL_CMD_RX_DISCARD	0x4000
150#define XL_CMD_TX_ENABLE	0x4800
151#define XL_CMD_TX_DISABLE	0x5000
152#define XL_CMD_TX_RESET		0x5800	/* mustwait */
153#define XL_CMD_INTR_FAKE	0x6000
154#define XL_CMD_INTR_ACK		0x6800
155#define XL_CMD_INTR_ENB		0x7000
156#define XL_CMD_STAT_ENB		0x7800
157#define XL_CMD_RX_SET_FILT	0x8000
158#define XL_CMD_RX_SET_THRESH	0x8800
159#define XL_CMD_TX_SET_THRESH	0x9000
160#define XL_CMD_TX_SET_START	0x9800
161#define XL_CMD_DMA_UP		0xA000
162#define XL_CMD_DMA_STOP		0xA001
163#define XL_CMD_STATS_ENABLE	0xA800
164#define XL_CMD_STATS_DISABLE	0xB000
165#define XL_CMD_COAX_STOP	0xB800
166
167#define XL_CMD_SET_TX_RECLAIM	0xC000 /* 3c905B only */
168#define XL_CMD_RX_SET_HASH	0xC800 /* 3c905B only */
169
170#define XL_HASH_SET		0x0400
171#define XL_HASHFILT_SIZE	256
172
173/*
174 * status codes
175 * Note that bits 15 to 13 indicate the currently visible register window
176 * which may be anything from 0 to 7.
177 */
178#define XL_STAT_INTLATCH	0x0001	/* 0 */
179#define XL_STAT_ADFAIL		0x0002	/* 1 */
180#define XL_STAT_TX_COMPLETE	0x0004	/* 2 */
181#define XL_STAT_TX_AVAIL	0x0008	/* 3 first generation */
182#define XL_STAT_RX_COMPLETE	0x0010	/* 4 */
183#define XL_STAT_RX_EARLY	0x0020	/* 5 */
184#define XL_STAT_INTREQ		0x0040	/* 6 */
185#define XL_STAT_STATSOFLOW	0x0080	/* 7 */
186#define XL_STAT_DMADONE		0x0100	/* 8 first generation */
187#define XL_STAT_LINKSTAT	0x0100	/* 8 3c509B */
188#define XL_STAT_DOWN_COMPLETE	0x0200	/* 9 */
189#define XL_STAT_UP_COMPLETE	0x0400	/* 10 */
190#define XL_STAT_DMABUSY		0x0800	/* 11 first generation */
191#define XL_STAT_CMDBUSY		0x1000	/* 12 */
192
193/*
194 * Interrupts we normally want enabled.
195 */
196#define XL_INTRS							\
197	(XL_STAT_UP_COMPLETE|XL_STAT_STATSOFLOW|XL_STAT_ADFAIL|	\
198	 XL_STAT_DOWN_COMPLETE|XL_STAT_TX_COMPLETE|XL_STAT_INTLATCH)
199
200/*
201 * Window 0 registers
202 */
203#define XL_W0_EE_DATA		0x0C
204#define XL_W0_EE_CMD		0x0A
205#define XL_W0_RSRC_CFG		0x08
206#define XL_W0_ADDR_CFG		0x06
207#define XL_W0_CFG_CTRL		0x04
208
209#define XL_W0_PROD_ID		0x02
210#define XL_W0_MFG_ID		0x00
211
212/*
213 * Window 1
214 */
215
216#define XL_W1_TX_FIFO		0x10
217
218#define XL_W1_FREE_TX		0x0C
219#define XL_W1_TX_STATUS		0x0B
220#define XL_W1_TX_TIMER		0x0A
221#define XL_W1_RX_STATUS		0x08
222#define XL_W1_RX_FIFO		0x00
223
224/*
225 * RX status codes
226 */
227#define XL_RXSTATUS_OVERRUN	0x01
228#define XL_RXSTATUS_RUNT	0x02
229#define XL_RXSTATUS_ALIGN	0x04
230#define XL_RXSTATUS_CRC		0x08
231#define XL_RXSTATUS_OVERSIZE	0x10
232#define XL_RXSTATUS_DRIBBLE	0x20
233
234/*
235 * TX status codes
236 */
237#define XL_TXSTATUS_RECLAIM	0x02	/* 3c905B only */
238#define XL_TXSTATUS_OVERFLOW	0x04
239#define XL_TXSTATUS_MAXCOLS	0x08
240#define XL_TXSTATUS_UNDERRUN	0x10
241#define XL_TXSTATUS_JABBER	0x20
242#define XL_TXSTATUS_INTREQ	0x40
243#define XL_TXSTATUS_COMPLETE	0x80
244
245/*
246 * Window 2
247 */
248#define XL_W2_RESET_OPTIONS	0x0C	/* 3c905B only */
249#define XL_W2_STATION_MASK_HI	0x0A
250#define XL_W2_STATION_MASK_MID	0x08
251#define XL_W2_STATION_MASK_LO	0x06
252#define XL_W2_STATION_ADDR_HI	0x04
253#define XL_W2_STATION_ADDR_MID	0x02
254#define XL_W2_STATION_ADDR_LO	0x00
255
256#define XL_RESETOPT_FEATUREMASK	(0x0001 | 0x0002 | 0x004)
257#define XL_RESETOPT_D3RESETDIS	0x0008
258#define XL_RESETOPT_DISADVFD	0x0010
259#define XL_RESETOPT_DISADV100	0x0020
260#define XL_RESETOPT_DISAUTONEG	0x0040
261#define XL_RESETOPT_DEBUGMODE	0x0080
262#define XL_RESETOPT_FASTAUTO	0x0100
263#define XL_RESETOPT_FASTEE	0x0200
264#define XL_RESETOPT_FORCEDCONF	0x0400
265#define XL_RESETOPT_TESTPDTPDR	0x0800
266#define XL_RESETOPT_TEST100TX	0x1000
267#define XL_RESETOPT_TEST100RX	0x2000
268
269#define XL_RESETOPT_INVERT_LED	0x0010
270#define XL_RESETOPT_INVERT_MII	0x4000
271
272/*
273 * Window 3 (fifo management)
274 */
275#define XL_W3_INTERNAL_CFG	0x00
276#define XL_W3_MAXPKTSIZE	0x04	/* 3c905B only */
277#define XL_W3_RESET_OPT		0x08
278#define XL_W3_FREE_TX		0x0C
279#define XL_W3_FREE_RX		0x0A
280#define XL_W3_MAC_CTRL		0x06
281
282#define XL_ICFG_CONNECTOR_MASK	0x00F00000
283#define XL_ICFG_CONNECTOR_BITS	20
284
285#define XL_ICFG_RAMSIZE_MASK	0x00000007
286#define XL_ICFG_RAMWIDTH	0x00000008
287#define XL_ICFG_ROMSIZE_MASK	(0x00000040 | 0x00000080)
288#define XL_ICFG_DISABLE_BASSD	0x00000100
289#define XL_ICFG_RAMLOC		0x00000200
290#define XL_ICFG_RAMPART		(0x00010000 | 0x00020000)
291#define XL_ICFG_XCVRSEL		(0x00100000 | 0x00200000 | 0x00400000)
292#define XL_ICFG_AUTOSEL		0x01000000
293
294#define XL_XCVR_10BT		0x00
295#define XL_XCVR_AUI		0x01
296#define XL_XCVR_RSVD_0		0x02
297#define XL_XCVR_COAX		0x03
298#define XL_XCVR_100BTX		0x04
299#define XL_XCVR_100BFX		0x05
300#define XL_XCVR_MII		0x06
301#define XL_XCVR_RSVD_1		0x07
302#define XL_XCVR_AUTO		0x08	/* 3c905B only */
303
304#define XL_MACCTRL_DEFER_EXT_END	0x0001
305#define XL_MACCTRL_DEFER_0		0x0002
306#define XL_MACCTRL_DEFER_1		0x0004
307#define XL_MACCTRL_DEFER_2		0x0008
308#define XL_MACCTRL_DEFER_3		0x0010
309#define XL_MACCTRL_DUPLEX		0x0020
310#define XL_MACCTRL_ALLOW_LARGE_PACK	0x0040
311#define XL_MACCTRL_EXTEND_AFTER_COL	0x0080	/* 3c905B only */
312#define XL_MACCTRL_FLOW_CONTROL_ENB	0x0100	/* 3c905B only */
313#define XL_MACCTRL_VLT_END		0x0200	/* 3c905B only */
314
315/*
316 * The 'reset options' register contains power-on reset values
317 * loaded from the EEPROM. This includes the supported media
318 * types on the card. It is also known as the media options register.
319 */
320#define XL_W3_MEDIA_OPT		0x08
321
322#define XL_MEDIAOPT_BT4		0x0001	/* MII */
323#define XL_MEDIAOPT_BTX		0x0002	/* on-chip */
324#define XL_MEDIAOPT_BFX		0x0004	/* on-chip */
325#define XL_MEDIAOPT_BT		0x0008	/* on-chip */
326#define XL_MEDIAOPT_BNC		0x0010	/* on-chip */
327#define XL_MEDIAOPT_AUI		0x0020	/* on-chip */
328#define XL_MEDIAOPT_MII		0x0040	/* MII */
329#define XL_MEDIAOPT_VCO		0x0100	/* 1st gen chip only */
330
331#define XL_MEDIAOPT_10FL	0x0100	/* 3x905B only, on-chip */
332#define XL_MEDIAOPT_MASK	0x01FF
333
334/*
335 * Window 4 (diagnostics)
336 */
337#define XL_W4_UPPERBYTESOK	0x0D
338#define XL_W4_BADSSD		0x0C
339#define XL_W4_MEDIA_STATUS	0x0A
340#define XL_W4_PHY_MGMT		0x08
341#define XL_W4_NET_DIAG		0x06
342#define XL_W4_FIFO_DIAG		0x04
343#define XL_W4_VCO_DIAG		0x02
344
345#define XL_W4_CTRLR_STAT	0x08
346#define XL_W4_TX_DIAG		0x00
347
348#define XL_MII_CLK		0x01
349#define XL_MII_DATA		0x02
350#define XL_MII_DIR		0x04
351
352#define XL_MEDIA_SQE		0x0008
353#define XL_MEDIA_10TP		0x00C0
354#define XL_MEDIA_LNK		0x0080
355#define XL_MEDIA_LNKBEAT	0x0800
356
357#define XL_MEDIASTAT_CRCSTRIP	0x0004
358#define XL_MEDIASTAT_SQEENB	0x0008
359#define XL_MEDIASTAT_COLDET	0x0010
360#define XL_MEDIASTAT_CARRIER	0x0020
361#define XL_MEDIASTAT_JABGUARD	0x0040
362#define XL_MEDIASTAT_LINKBEAT	0x0080
363#define XL_MEDIASTAT_JABDETECT	0x0200
364#define XL_MEDIASTAT_POLREVERS	0x0400
365#define XL_MEDIASTAT_LINKDETECT	0x0800
366#define XL_MEDIASTAT_TXINPROG	0x1000
367#define XL_MEDIASTAT_DCENB	0x4000
368#define XL_MEDIASTAT_AUIDIS	0x8000
369
370#define XL_NETDIAG_TEST_LOWVOLT		0x0001
371#define XL_NETDIAG_ASIC_REVMASK		\
372	(0x0002 | 0x0004 | 0x0008 | 0x0010 | 0x0020)
373#define XL_NETDIAG_UPPER_BYTES_ENABLE	0x0040
374#define XL_NETDIAG_STATS_ENABLED	0x0080
375#define XL_NETDIAG_TX_FATALERR		0x0100
376#define XL_NETDIAG_TRANSMITTING		0x0200
377#define XL_NETDIAG_RX_ENABLED		0x0400
378#define XL_NETDIAG_TX_ENABLED		0x0800
379#define XL_NETDIAG_FIFO_LOOPBACK	0x1000
380#define XL_NETDIAG_MAC_LOOPBACK		0x2000
381#define XL_NETDIAG_ENDEC_LOOPBACK	0x4000
382#define XL_NETDIAG_EXTERNAL_LOOP	0x8000
383
384/*
385 * Window 5
386 */
387#define XL_W5_STAT_ENB		0x0C
388#define XL_W5_INTR_ENB		0x0A
389#define XL_W5_RECLAIM_THRESH	0x09	/* 3c905B only */
390#define XL_W5_RX_FILTER		0x08
391#define XL_W5_RX_EARLYTHRESH	0x06
392#define XL_W5_TX_AVAILTHRESH	0x02
393#define XL_W5_TX_STARTTHRESH	0x00
394
395/*
396 * RX filter bits
397 */
398#define XL_RXFILTER_INDIVIDUAL	0x01
399#define XL_RXFILTER_ALLMULTI	0x02
400#define XL_RXFILTER_BROADCAST	0x04
401#define XL_RXFILTER_ALLFRAMES	0x08
402#define XL_RXFILTER_MULTIHASH	0x10	/* 3c905B only */
403
404/*
405 * Window 6 (stats)
406 */
407#define XL_W6_TX_BYTES_OK	0x0C
408#define XL_W6_RX_BYTES_OK	0x0A
409#define XL_W6_UPPER_FRAMES_OK	0x09
410#define XL_W6_DEFERRED		0x08
411#define XL_W6_RX_OK		0x07
412#define XL_W6_TX_OK		0x06
413#define XL_W6_RX_OVERRUN	0x05
414#define XL_W6_COL_LATE		0x04
415#define XL_W6_COL_SINGLE	0x03
416#define XL_W6_COL_MULTIPLE	0x02
417#define XL_W6_SQE_ERRORS	0x01
418#define XL_W6_CARRIER_LOST	0x00
419
420/*
421 * Window 7 (bus master control)
422 */
423#define XL_W7_BM_ADDR		0x00
424#define XL_W7_BM_LEN		0x06
425#define XL_W7_BM_STATUS		0x0B
426#define XL_W7_BM_TIMEr		0x0A
427#define XL_W7_BM_PME		0x0C
428
429#define	XL_BM_PME_WAKE		0x0001
430#define	XL_BM_PME_MAGIC		0x0002
431#define	XL_BM_PME_LINKCHG	0x0004
432#define	XL_BM_PME_WAKETIMER	0x0008
433/*
434 * bus master control registers
435 */
436#define XL_BM_PKTSTAT		0x20
437#define XL_BM_DOWNLISTPTR	0x24
438#define XL_BM_FRAGADDR		0x28
439#define XL_BM_FRAGLEN		0x2C
440#define XL_BM_TXFREETHRESH	0x2F
441#define XL_BM_UPPKTSTAT		0x30
442#define XL_BM_UPLISTPTR		0x38
443
444#define XL_LAST_FRAG		0x80000000
445
446#define XL_MAXFRAGS		63
447#define XL_RX_LIST_CNT		128
448#define XL_TX_LIST_CNT		256
449#define XL_RX_LIST_SZ		\
450	(XL_RX_LIST_CNT * sizeof(struct xl_list_onefrag))
451#define XL_TX_LIST_SZ		\
452	(XL_TX_LIST_CNT * sizeof(struct xl_list))
453#define XL_MIN_FRAMELEN		60
454#define ETHER_ALIGN		2
455#define XL_INC(x, y)		(x) = (x + 1) % y
456
457/*
458 * Boomerang/Cyclone TX/RX list structure.
459 * For the TX lists, bits 0 to 12 of the status word indicate
460 * length.
461 * This looks suspiciously like the ThunderLAN, doesn't it.
462 */
463struct xl_frag {
464	u_int32_t		xl_addr;	/* 63 addr/len pairs */
465	u_int32_t		xl_len;
466};
467
468struct xl_list {
469	u_int32_t		xl_next;	/* final entry has 0 nextptr */
470	u_int32_t		xl_status;
471	struct xl_frag		xl_frag[XL_MAXFRAGS];
472};
473
474struct xl_list_onefrag {
475	u_int32_t		xl_next;	/* final entry has 0 nextptr */
476	volatile u_int32_t	xl_status;
477	volatile struct xl_frag	xl_frag;
478};
479
480struct xl_list_data {
481	struct xl_list_onefrag	*xl_rx_list;
482	struct xl_list		*xl_tx_list;
483	u_int32_t		xl_rx_dmaaddr;
484	bus_dma_tag_t		xl_rx_tag;
485	bus_dmamap_t		xl_rx_dmamap;
486	u_int32_t		xl_tx_dmaaddr;
487	bus_dma_tag_t		xl_tx_tag;
488	bus_dmamap_t		xl_tx_dmamap;
489};
490
491struct xl_chain {
492	struct xl_list		*xl_ptr;
493	struct mbuf		*xl_mbuf;
494	struct xl_chain		*xl_next;
495	struct xl_chain		*xl_prev;
496	u_int32_t		xl_phys;
497	bus_dmamap_t		xl_map;
498};
499
500struct xl_chain_onefrag {
501	struct xl_list_onefrag	*xl_ptr;
502	struct mbuf		*xl_mbuf;
503	struct xl_chain_onefrag	*xl_next;
504	bus_dmamap_t		xl_map;
505};
506
507struct xl_chain_data {
508	struct xl_chain_onefrag	xl_rx_chain[XL_RX_LIST_CNT];
509	struct xl_chain		xl_tx_chain[XL_TX_LIST_CNT];
510	bus_dma_segment_t	xl_tx_segs[XL_MAXFRAGS];
511
512	struct xl_chain_onefrag	*xl_rx_head;
513
514	/* 3c90x "boomerang" queuing stuff */
515	struct xl_chain		*xl_tx_head;
516	struct xl_chain		*xl_tx_tail;
517	struct xl_chain		*xl_tx_free;
518
519	/* 3c90xB "cyclone/hurricane/tornado" stuff */
520	int			xl_tx_prod;
521	int			xl_tx_cons;
522	int			xl_tx_cnt;
523};
524
525#define XL_RXSTAT_LENMASK	0x00001FFF
526#define XL_RXSTAT_UP_ERROR	0x00004000
527#define XL_RXSTAT_UP_CMPLT	0x00008000
528#define XL_RXSTAT_UP_OVERRUN	0x00010000
529#define XL_RXSTAT_RUNT		0x00020000
530#define XL_RXSTAT_ALIGN		0x00040000
531#define XL_RXSTAT_CRC		0x00080000
532#define XL_RXSTAT_OVERSIZE	0x00100000
533#define XL_RXSTAT_DRIBBLE	0x00800000
534#define XL_RXSTAT_UP_OFLOW	0x01000000
535#define XL_RXSTAT_IPCKERR	0x02000000	/* 3c905B only */
536#define XL_RXSTAT_TCPCKERR	0x04000000	/* 3c905B only */
537#define XL_RXSTAT_UDPCKERR	0x08000000	/* 3c905B only */
538#define XL_RXSTAT_BUFEN		0x10000000	/* 3c905B only */
539#define XL_RXSTAT_IPCKOK	0x20000000	/* 3c905B only */
540#define XL_RXSTAT_TCPCOK	0x40000000	/* 3c905B only */
541#define XL_RXSTAT_UDPCKOK	0x80000000	/* 3c905B only */
542
543#define XL_TXSTAT_LENMASK	0x00001FFF
544#define XL_TXSTAT_CRCDIS	0x00002000
545#define XL_TXSTAT_TX_INTR	0x00008000
546#define XL_TXSTAT_DL_COMPLETE	0x00010000
547#define XL_TXSTAT_IPCKSUM	0x02000000	/* 3c905B only */
548#define XL_TXSTAT_TCPCKSUM	0x04000000	/* 3c905B only */
549#define XL_TXSTAT_UDPCKSUM	0x08000000	/* 3c905B only */
550#define XL_TXSTAT_RND_DEFEAT	0x10000000	/* 3c905B only */
551#define XL_TXSTAT_EMPTY		0x20000000	/* 3c905B only */
552#define XL_TXSTAT_DL_INTR	0x80000000
553
554#define XL_CAPABILITY_BM	0x20
555
556struct xl_type {
557	u_int16_t		xl_vid;
558	u_int16_t		xl_did;
559	const char		*xl_name;
560};
561
562/*
563 * The 3C905B adapters implement a few features that we want to
564 * take advantage of, namely the multicast hash filter. With older
565 * chips, you only have the option of turning on reception of all
566 * multicast frames, which is kind of lame.
567 *
568 * We also use this to decide on a transmit strategy. For the 3c90xB
569 * cards, we can use polled descriptor mode, which reduces CPU overhead.
570 */
571#define XL_TYPE_905B	1
572#define XL_TYPE_90X	2
573
574#define XL_FLAG_FUNCREG			0x0001
575#define XL_FLAG_PHYOK			0x0002
576#define XL_FLAG_EEPROM_OFFSET_30	0x0004
577#define XL_FLAG_WEIRDRESET		0x0008
578#define XL_FLAG_8BITROM			0x0010
579#define XL_FLAG_INVERT_LED_PWR		0x0020
580#define XL_FLAG_INVERT_MII_PWR		0x0040
581#define XL_FLAG_NO_XCVR_PWR		0x0080
582#define XL_FLAG_USE_MMIO		0x0100
583#define	XL_FLAG_NO_MMIO			0x0200
584#define	XL_FLAG_WOL			0x0400
585
586#define XL_NO_XCVR_PWR_MAGICBITS	0x0900
587
588struct xl_softc {
589	struct ifnet		*xl_ifp;	/* interface info */
590	device_t		xl_dev;		/* device info */
591	struct ifmedia		ifmedia;	/* media info */
592	bus_space_handle_t	xl_bhandle;
593	bus_space_tag_t		xl_btag;
594	void			*xl_intrhand;
595	struct resource		*xl_irq;
596	struct resource		*xl_res;
597	device_t		xl_miibus;
598	const struct xl_type	*xl_info;	/* 3Com adapter info */
599	bus_dma_tag_t		xl_mtag;
600	bus_dmamap_t		xl_tmpmap;	/* spare DMA map */
601	u_int8_t		xl_type;
602	u_int32_t		xl_xcvr;
603	u_int16_t		xl_media;
604	u_int16_t		xl_caps;
605	u_int16_t		xl_tx_thresh;
606	int			xl_pmcap;
607	int			xl_if_flags;
608	struct xl_list_data	xl_ldata;
609	struct xl_chain_data	xl_cdata;
610	struct callout		xl_tick_callout;
611	int			xl_wdog_timer;
612	int			xl_flags;
613	struct resource		*xl_fres;
614	bus_space_handle_t	xl_fhandle;
615	bus_space_tag_t		xl_ftag;
616	struct mtx		xl_mtx;
617	struct task		xl_task;
618#ifdef DEVICE_POLLING
619	int			rxcycles;
620#endif
621};
622
623#define XL_LOCK(_sc)		mtx_lock(&(_sc)->xl_mtx)
624#define XL_UNLOCK(_sc)		mtx_unlock(&(_sc)->xl_mtx)
625#define XL_LOCK_ASSERT(_sc)	mtx_assert(&(_sc)->xl_mtx, MA_OWNED)
626
627#define xl_rx_goodframes(x) \
628	((x.xl_upper_frames_ok & 0x03) << 8) | x.xl_rx_frames_ok
629
630#define xl_tx_goodframes(x) \
631	((x.xl_upper_frames_ok & 0x30) << 4) | x.xl_tx_frames_ok
632
633struct xl_stats {
634	u_int8_t		xl_carrier_lost;
635	u_int8_t		xl_sqe_errs;
636	u_int8_t		xl_tx_multi_collision;
637	u_int8_t		xl_tx_single_collision;
638	u_int8_t		xl_tx_late_collision;
639	u_int8_t		xl_rx_overrun;
640	u_int8_t		xl_tx_frames_ok;
641	u_int8_t		xl_rx_frames_ok;
642	u_int8_t		xl_tx_deferred;
643	u_int8_t		xl_upper_frames_ok;
644	u_int16_t		xl_rx_bytes_ok;
645	u_int16_t		xl_tx_bytes_ok;
646	u_int16_t		status;
647};
648
649/*
650 * register space access macros
651 */
652#define CSR_WRITE_4(sc, reg, val)	\
653	bus_space_write_4(sc->xl_btag, sc->xl_bhandle, reg, val)
654#define CSR_WRITE_2(sc, reg, val)	\
655	bus_space_write_2(sc->xl_btag, sc->xl_bhandle, reg, val)
656#define CSR_WRITE_1(sc, reg, val)	\
657	bus_space_write_1(sc->xl_btag, sc->xl_bhandle, reg, val)
658
659#define CSR_READ_4(sc, reg)		\
660	bus_space_read_4(sc->xl_btag, sc->xl_bhandle, reg)
661#define CSR_READ_2(sc, reg)		\
662	bus_space_read_2(sc->xl_btag, sc->xl_bhandle, reg)
663#define CSR_READ_1(sc, reg)		\
664	bus_space_read_1(sc->xl_btag, sc->xl_bhandle, reg)
665
666#define CSR_BARRIER(sc, reg, length, flags)				\
667	bus_space_barrier(sc->xl_btag, sc->xl_bhandle, reg, length, flags)
668
669#define XL_SEL_WIN(x) do {						\
670	CSR_BARRIER(sc, XL_COMMAND, 2,					\
671	    BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);		\
672	CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_WINSEL | x);			\
673	CSR_BARRIER(sc, XL_COMMAND, 2,					\
674	    BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE);		\
675} while (0)
676
677#define XL_TIMEOUT		1000
678
679/*
680 * General constants that are fun to know.
681 *
682 * 3Com PCI vendor ID
683 */
684#define	TC_VENDORID		0x10B7
685
686/*
687 * 3Com chip device IDs.
688 */
689#define	TC_DEVICEID_BOOMERANG_10BT		0x9000
690#define TC_DEVICEID_BOOMERANG_10BT_COMBO	0x9001
691#define TC_DEVICEID_BOOMERANG_10_100BT		0x9050
692#define TC_DEVICEID_BOOMERANG_100BT4		0x9051
693#define TC_DEVICEID_KRAKATOA_10BT		0x9004
694#define TC_DEVICEID_KRAKATOA_10BT_COMBO		0x9005
695#define TC_DEVICEID_KRAKATOA_10BT_TPC		0x9006
696#define TC_DEVICEID_CYCLONE_10FL		0x900A
697#define TC_DEVICEID_HURRICANE_10_100BT		0x9055
698#define TC_DEVICEID_CYCLONE_10_100BT4		0x9056
699#define TC_DEVICEID_CYCLONE_10_100_COMBO	0x9058
700#define TC_DEVICEID_CYCLONE_10_100FX		0x905A
701#define TC_DEVICEID_TORNADO_10_100BT		0x9200
702#define TC_DEVICEID_TORNADO_10_100BT_920B	0x9201
703#define TC_DEVICEID_TORNADO_10_100BT_920B_WNM	0x9202
704#define TC_DEVICEID_HURRICANE_10_100BT_SERV	0x9800
705#define TC_DEVICEID_TORNADO_10_100BT_SERV	0x9805
706#define TC_DEVICEID_HURRICANE_SOHO100TX		0x7646
707#define TC_DEVICEID_TORNADO_HOMECONNECT		0x4500
708#define TC_DEVICEID_HURRICANE_555		0x5055
709#define TC_DEVICEID_HURRICANE_556		0x6055
710#define TC_DEVICEID_HURRICANE_556B		0x6056
711#define TC_DEVICEID_HURRICANE_575A		0x5057
712#define TC_DEVICEID_HURRICANE_575B		0x5157
713#define TC_DEVICEID_HURRICANE_575C		0x5257
714#define TC_DEVICEID_HURRICANE_656		0x6560
715#define TC_DEVICEID_HURRICANE_656B		0x6562
716#define TC_DEVICEID_TORNADO_656C		0x6564
717
718/*
719 * PCI low memory base and low I/O base register, and
720 * other PCI registers. Note: some are only available on
721 * the 3c905B, in particular those that related to power management.
722 */
723#define XL_PCI_VENDOR_ID	0x00
724#define XL_PCI_DEVICE_ID	0x02
725#define XL_PCI_COMMAND		0x04
726#define XL_PCI_STATUS		0x06
727#define XL_PCI_CLASSCODE	0x09
728#define XL_PCI_LATENCY_TIMER	0x0D
729#define XL_PCI_HEADER_TYPE	0x0E
730#define XL_PCI_LOIO		0x10
731#define XL_PCI_LOMEM		0x14
732#define XL_PCI_FUNCMEM		0x18
733#define XL_PCI_BIOSROM		0x30
734#define XL_PCI_INTLINE		0x3C
735#define XL_PCI_INTPIN		0x3D
736#define XL_PCI_MINGNT		0x3E
737#define XL_PCI_MINLAT		0x0F
738#define XL_PCI_RESETOPT		0x48
739#define XL_PCI_EEPROM_DATA	0x4C
740
741/* 3c905B-only registers */
742#define XL_PCI_CAPID		0xDC /* 8 bits */
743#define XL_PCI_NEXTPTR		0xDD /* 8 bits */
744#define XL_PCI_PWRMGMTCAP	0xDE /* 16 bits */
745#define XL_PCI_PWRMGMTCTRL	0xE0 /* 16 bits */
746
747#define XL_PSTATE_MASK		0x0003
748#define XL_PSTATE_D0		0x0000
749#define XL_PSTATE_D1		0x0002
750#define XL_PSTATE_D2		0x0002
751#define XL_PSTATE_D3		0x0003
752#define XL_PME_EN		0x0010
753#define XL_PME_STATUS		0x8000
754
755#ifndef IFM_10_FL
756#define IFM_10_FL	13		/* 10baseFL - Fiber */
757#endif
758