if_ed_cbus.c revision 149558
1/*-
2 * Copyright (c) 1995, David Greenman
3 * 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 unmodified, this list of conditions, and the following
10 *    disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD: head/sys/dev/ed/if_ed_cbus.c 149558 2005-08-28 23:56:25Z imp $
28 */
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/socket.h>
33#include <sys/kernel.h>
34
35#include <sys/module.h>
36#include <sys/bus.h>
37#include <machine/bus.h>
38#include <sys/rman.h>
39#include <machine/resource.h>
40#include <machine/clock.h>
41
42#include <net/ethernet.h>
43#include <net/if.h>
44#include <net/if_arp.h>
45#include <net/if_mib.h>
46
47#include <isa/isavar.h>
48
49#include <dev/ed/if_edvar.h>
50#include <dev/ed/if_edreg.h>
51#include <dev/ed/if_ed98.h>
52
53static int ed98_alloc_port(device_t, int);
54static int ed98_alloc_memory(device_t, int);
55static int ed_pio_testmem(struct ed_softc *, int, int, int);
56static int ed_probe_SIC98(device_t, int, int);
57static int ed_probe_CNET98(device_t, int, int);
58static int ed_probe_CNET98EL(device_t, int, int);
59static int ed_probe_NEC77(device_t, int, int);
60static int ed_probe_NW98X(device_t, int, int);
61static int ed_probe_SB98(device_t, int, int);
62static int ed_probe_EZ98(device_t, int, int);
63static int ed98_probe_Novell(device_t, int, int);
64static int ed98_probe_generic8390(struct ed_softc *);
65static void ed_reset_CNET98(struct ed_softc *, int);
66static void ed_winsel_CNET98(struct ed_softc *, u_short);
67static void ed_get_SB98(struct ed_softc *);
68
69static int ed_cbus_probe(device_t);
70static int ed_cbus_attach(device_t);
71
72static struct isa_pnp_id ed_ids[] = {
73/* TODO - list up PnP boards for PC-98 */
74	{ 0,		NULL }
75};
76
77static int
78ed_cbus_probe(device_t dev)
79{
80	struct ed_softc *sc = device_get_softc(dev);
81	int flags = device_get_flags(dev);
82	int error = 0;
83
84	sc->type = ED_TYPE98(flags);
85#ifdef ED_DEBUG
86	device_printf(dev, "ed_cbus_probe: sc->type=%x\n", sc->type);
87#endif
88
89	/* Check isapnp ids */
90	error = ISA_PNP_PROBE(device_get_parent(dev), dev, ed_ids);
91#ifdef ED_DEBUG
92	device_printf(dev, "ed_cbus_probe: ISA_PNP_PROBE returns %d\n", error);
93#endif
94
95	/* If the card had a PnP ID that didn't match any we know about */
96	if (error == ENXIO)
97		goto end;
98
99	/* If we had some other problem. */
100	if (!(error == 0 || error == ENOENT))
101		goto end;
102
103	/* Heuristic probes */
104#ifdef ED_DEBUG
105	device_printf(dev, "ed_cbus_probe: Heuristic probes start\n");
106#endif
107	switch (sc->type) {
108	case ED_TYPE98_GENERIC:
109		/*
110		 * CAUTION!
111		 * sc->type of these boards are overwritten by PC/AT's value.
112		 */
113
114		/*
115		 * SMC EtherEZ98
116		 */
117		error = ed_probe_EZ98(dev, 0, flags);
118		if (error == 0)
119			goto end;
120
121		ed_release_resources(dev);
122
123		/*
124		 * Allied Telesis CenterCom LA-98-T
125		 */
126		error = ed_probe_Novell(dev, 0, flags);
127		if (error == 0) {
128			ed_Novell_read_mac(sc);
129			goto end;
130		}
131		break;
132
133	/*
134	 * NE2000-like boards probe routine
135	 */
136	case ED_TYPE98_BDN:
137		/*
138		 * ELECOM LANEED LD-BDN
139		 * PLANET SMART COM 98 EN-2298
140		 */
141	case ED_TYPE98_LGY:
142		/*
143		 * MELCO LGY-98, IND-SP, IND-SS
144		 * MACNICA NE2098
145		 */
146	case ED_TYPE98_ICM:
147		/*
148		 * ICM DT-ET-25, DT-ET-T5, IF-2766ET, IF-2771ET
149		 * D-Link DE-298P, DE-298
150		 */
151	case ED_TYPE98_EGY:
152		/*
153		 * MELCO EGY-98
154		 * Contec C-NET(98)E-A, C-NET(98)L-A
155		 */
156	case ED_TYPE98_108:
157		/*
158		 * NEC PC-9801-107,108
159		 */
160	case ED_TYPE98_NC5098:
161		/*
162		 * NextCom NC5098
163		 */
164		error = ed98_probe_Novell(dev, 0, flags);
165		break;
166
167	/*
168	 * other boards with special probe routine
169	 */
170	case ED_TYPE98_SIC:
171		/*
172		 * Allied Telesis SIC-98
173		 */
174		error = ed_probe_SIC98(dev, 0, flags);
175		break;
176
177	case ED_TYPE98_CNET98EL:
178		/*
179		 * Contec C-NET(98)E/L
180		 */
181		error = ed_probe_CNET98EL(dev, 0, flags);
182		break;
183
184	case ED_TYPE98_CNET98:
185		/*
186		 * Contec C-NET(98)
187		 */
188		error = ed_probe_CNET98(dev, 0, flags);
189		break;
190
191	case ED_TYPE98_LA98:
192		/*
193		 * IO-DATA LA/T-98
194		 * NEC PC-9801-77,78
195		 */
196		error = ed_probe_NEC77(dev, 0, flags);
197		break;
198
199	case ED_TYPE98_NW98X:
200		/*
201		 * Networld EC/EP-98X
202		 */
203		error = ed_probe_NW98X(dev, 0, flags);
204		break;
205
206	case ED_TYPE98_SB98:
207		/*
208		 * Soliton SB-9801
209		 * Fujikura FN-9801
210		 */
211		error = ed_probe_SB98(dev, 0, flags);
212		break;
213	}
214
215end:
216#ifdef ED_DEBUG
217	device_printf(dev, "ed_cbus_probe: end, error=%d\n", error);
218#endif
219	if (error == 0)
220		error = ed_alloc_irq(dev, 0, 0);
221
222	ed_release_resources(dev);
223	return (error);
224}
225
226static int
227ed_cbus_attach(dev)
228	device_t dev;
229{
230	struct ed_softc *sc = device_get_softc(dev);
231	int flags = device_get_flags(dev);
232	int error;
233
234	if (sc->port_used > 0) {
235		if (ED_TYPE98(flags) == ED_TYPE98_GENERIC)
236			ed_alloc_port(dev, sc->port_rid, sc->port_used);
237		else
238			ed98_alloc_port(dev, sc->port_rid);
239	}
240	if (sc->mem_used)
241		ed_alloc_memory(dev, sc->mem_rid, sc->mem_used);
242
243	ed_alloc_irq(dev, sc->irq_rid, 0);
244
245	error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET | INTR_MPSAFE,
246	    edintr, sc, &sc->irq_handle);
247	if (error) {
248		ed_release_resources(dev);
249		return (error);
250	}
251
252	return ed_attach(dev);
253}
254
255/*
256 * Interrupt conversion table for EtherEZ98
257 */
258static uint16_t ed_EZ98_intr_val[] = {
259	0,
260	3,
261	5,
262	6,
263	0,
264	9,
265	12,
266	13
267};
268
269static int
270ed_probe_EZ98(device_t dev, int port_rid, int flags)
271{
272	struct ed_softc *sc = device_get_softc(dev);
273	int error;
274	static unsigned short *intr_vals[] = {NULL, ed_EZ98_intr_val};
275
276	error = ed_alloc_port(dev, port_rid, ED_EZ98_IO_PORTS);
277	if (error) {
278		return (error);
279	}
280
281	sc->asic_offset = ED_EZ98_ASIC_OFFSET;
282	sc->nic_offset  = ED_EZ98_NIC_OFFSET;
283
284	return ed_probe_WD80x3_generic(dev, flags, intr_vals);
285}
286
287/*
288 * I/O conversion tables
289 */
290
291/* LGY-98, ICM, C-NET(98)E/L */
292static	bus_addr_t ed98_ioaddr_generic[] = {
293	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
294};
295
296/*
297 *		Definitions for Contec C-NET(98)E/L
298 */
299#define	ED_CNET98EL_ICR         2	/* Interrupt Configuration Register */
300
301#define	ED_CNET98EL_ICR_IRQ3	0x01
302#define	ED_CNET98EL_ICR_IRQ5	0x02
303#define	ED_CNET98EL_ICR_IRQ6	0x04
304#define	ED_CNET98EL_ICR_IRQ12	0x20
305
306#define	ED_CNET98EL_IMR         4	/* Interrupt Mask Register	*/
307#define	ED_CNET98EL_ISR         5	/* Interrupt Status Register	*/
308
309/* EGY-98 */
310static	bus_addr_t ed98_ioaddr_egy98[] = {
311	0,     0x02,  0x04,  0x06,  0x08,  0x0a,  0x0c,  0x0e,
312	0x100, 0x102, 0x104, 0x106, 0x108, 0x10a, 0x10c, 0x10e
313};
314
315/* SIC-98 */
316static	bus_addr_t ed98_ioaddr_sic98[] = {
317	0x0000, 0x0200, 0x0400, 0x0600, 0x0800, 0x0a00, 0x0c00, 0x0e00,
318	0x1000, 0x1200, 0x1400, 0x1600, 0x1800, 0x1a00, 0x1c00, 0x1e00
319};
320
321/* LA/T-98, LD-BDN, PC-9801-77, SB-9801 */
322static	bus_addr_t ed98_ioaddr_la98[] = {
323	0x0000, 0x1000, 0x2000, 0x3000, 0x4000, 0x5000, 0x6000, 0x7000,
324	0x8000, 0x9000, 0xa000, 0xb000, 0xc000, 0xd000, 0xe000, 0xf000,
325	0x0100	/* for NEC 77(see below) */
326};
327
328/*
329 *		Definitions for NEC PC-9801-77
330 */
331#define	ED_NEC77_IRQ		16	/* Interrupt Configuration Register */
332
333#define	ED_NEC77_IRQ3		0x04
334#define	ED_NEC77_IRQ5		0x06
335#define	ED_NEC77_IRQ6		0x08
336#define	ED_NEC77_IRQ12		0x0a
337#define	ED_NEC77_IRQ13		0x02
338
339/*
340 *		Definitions for Soliton SB-9801
341 */
342#define	ED_SB98_CFG		1	/* Board configuration		*/
343
344#define	ED_SB98_CFG_IRQ3	0x00
345#define	ED_SB98_CFG_IRQ5	0x04
346#define	ED_SB98_CFG_IRQ6	0x08
347#define	ED_SB98_CFG_IRQ12	0x0c
348#define	ED_SB98_CFG_ALTPORT	0x40		/* use EXTERNAL media	*/
349#define	ED_SB98_CFG_ENABLE	0xa0		/* enable configuration	*/
350
351#define	ED_SB98_EEPENA		2	/* EEPROM access enable		*/
352
353#define	ED_SB98_EEPENA_DISABLE	0x00
354#define	ED_SB98_EEPENA_ENABLE	0x01
355
356#define	ED_SB98_EEP		3	/* EEPROM access		*/
357
358#define	ED_SB98_EEP_SDA		0x01		/* Serial Data	*/
359#define	ED_SB98_EEP_SCL		0x02		/* Serial Clock	*/
360#define	ED_SB98_EEP_READ	0x01		/* Read Command	*/
361
362#define	ED_SB98_EEP_DELAY	300
363
364#define	ED_SB98_ADDRESS		0x01		/* Station Address(1-6)	*/
365
366#define	ED_SB98_POLARITY	4	/* Polarity			*/
367
368/* PC-9801-108 */
369static	bus_addr_t ed98_ioaddr_nec108[] = {
370	0x0000, 0x0002, 0x0004, 0x0006, 0x0008, 0x000a, 0x000c, 0x000e,
371	0x1000, 0x1002, 0x1004, 0x1006, 0x1008, 0x100a, 0x100c, 0x100e
372};
373
374/* C-NET(98) */
375static	bus_addr_t ed98_ioaddr_cnet98[] = {
376	0x0000, 0x0002, 0x0004, 0x0006, 0x0008, 0x000a, 0x000c, 0x000e,
377	0x0400, 0x0402, 0x0404, 0x0406, 0x0408, 0x040a, 0x040c, 0x040e
378};
379
380/*
381 *		Definitions for Contec C-NET(98)
382 */
383#define	ED_CNET98_MAP_REG0L	0	/* MAPPING register0 Low	*/
384#define	ED_CNET98_MAP_REG1L	1	/* MAPPING register1 Low	*/
385#define	ED_CNET98_MAP_REG2L	2	/* MAPPING register2 Low	*/
386#define	ED_CNET98_MAP_REG3L	3	/* MAPPING register3 Low	*/
387#define	ED_CNET98_MAP_REG0H	4	/* MAPPING register0 Hi		*/
388#define	ED_CNET98_MAP_REG1H	5	/* MAPPING register1 Hi		*/
389#define	ED_CNET98_MAP_REG2H	6	/* MAPPING register2 Hi		*/
390#define	ED_CNET98_MAP_REG3H	7	/* MAPPING register3 Hi		*/
391#define	ED_CNET98_WIN_REG	8	/* Window register		*/
392#define	ED_CNET98_INT_LEV	9	/* Init level register		*/
393
394#define	ED_CNET98_INT_IRQ3	0x01		/* INT 0 */
395#define	ED_CNET98_INT_IRQ5	0x02		/* INT 1 */
396#define	ED_CNET98_INT_IRQ6	0x04		/* INT 2 */
397#define	ED_CNET98_INT_IRQ9	0x08		/* INT 3 */
398#define	ED_CNET98_INT_IRQ12	0x20		/* INT 5 */
399#define	ED_CNET98_INT_IRQ13	0x40		/* INT 6 */
400
401#define	ED_CNET98_INT_REQ	10	/* Init request register	*/
402#define	ED_CNET98_INT_MASK	11	/* Init mask register		*/
403#define	ED_CNET98_INT_STAT	12	/* Init status register		*/
404#define	ED_CNET98_INT_CLR	12	/* Init clear register		*/
405#define	ED_CNET98_RESERVE1	13
406#define	ED_CNET98_RESERVE2	14
407#define	ED_CNET98_RESERVE3	15
408
409/* EC/EP-98X, NC5098 */
410static	bus_addr_t ed98_ioaddr_nw98x[] = {
411	0x0000, 0x0100, 0x0200, 0x0300, 0x0400, 0x0500, 0x0600, 0x0700,
412	0x0800, 0x0900, 0x0a00, 0x0b00, 0x0c00, 0x0d00, 0x0e00, 0x0f00,
413	0x1000	/* for EC/EP-98X(see below) */
414};
415
416/*
417 *		Definitions for Networld EC/EP-98X
418 */
419#define	ED_NW98X_IRQ            16	/* Interrupt Configuration Register */
420
421#define	ED_NW98X_IRQ3           0x04
422#define	ED_NW98X_IRQ5           0x06
423#define	ED_NW98X_IRQ6           0x08
424#define	ED_NW98X_IRQ12          0x0a
425#define	ED_NW98X_IRQ13          0x02
426
427/* NC5098 ASIC */
428static bus_addr_t ed98_asic_nc5098[] = {
429/*	DATA    ENADDR						RESET	*/
430	0x0000, 0x2000, 0x2100, 0x2200, 0x2300, 0x2400, 0x2500, 0x4000,
431	     0,      0,      0,      0,      0,      0,      0,      0
432};
433
434/*
435 *		Definitions for NextCom NC5098
436 */
437#define	ED_NC5098_ENADDR	1	/* Station Address(1-6)		*/
438
439/*
440 * Allocate a port resource with the given resource id.
441 */
442static int
443ed98_alloc_port(device_t dev, int rid)
444{
445	struct ed_softc *sc = device_get_softc(dev);
446	struct resource *res;
447	int error;
448	bus_addr_t *io_nic, *io_asic, adj;
449	static bus_addr_t io_res[ED_NOVELL_IO_PORTS + 1];
450	int i, n;
451	int offset, reset, data;
452
453	/* Set i/o table for resource manager */
454	io_nic = io_asic = ed98_ioaddr_generic;
455	offset = ED_NOVELL_ASIC_OFFSET;
456	reset = ED_NOVELL_RESET;
457	data  = ED_NOVELL_DATA;
458	n = ED_NOVELL_IO_PORTS;
459
460	switch (sc->type) {
461	case ED_TYPE98_LGY:
462		io_asic = ed98_ioaddr_egy98; /* XXX - Yes, we use egy98 */
463		offset = 0x0200;
464		reset = 8;
465		break;
466
467	case ED_TYPE98_EGY:
468		io_nic = io_asic = ed98_ioaddr_egy98;
469		offset = 0x0200;
470		reset = 8;
471		break;
472
473	case ED_TYPE98_ICM:
474		offset = 0x0100;
475		break;
476
477	case ED_TYPE98_BDN:
478		io_nic = io_asic = ed98_ioaddr_la98;
479		offset = 0x0100;
480		reset = 0x0c;
481		break;
482
483	case ED_TYPE98_SIC:
484		io_nic = io_asic = ed98_ioaddr_sic98;
485		offset = 0x2000;
486		n = 16+1;
487		break;
488
489	case ED_TYPE98_108:
490		io_nic = io_asic = ed98_ioaddr_nec108;
491		offset = 0x0888;	/* XXX - overwritten after */
492		reset = 1;
493		n = 16;	/* XXX - does not set ASIC i/o here */
494		break;
495
496	case ED_TYPE98_LA98:
497		io_nic = io_asic = ed98_ioaddr_la98;
498		offset = 0x0100;
499		break;
500
501	case ED_TYPE98_CNET98EL:
502		offset = 0x0400;
503		data = 0x0e;
504		break;
505
506	case ED_TYPE98_CNET98:
507		/* XXX - Yes, we use generic i/o here */
508		offset = 0x0400;
509		break;
510
511	case ED_TYPE98_NW98X:
512		io_nic = io_asic = ed98_ioaddr_nw98x;
513		offset = 0x1000;
514		break;
515
516	case ED_TYPE98_SB98:
517		io_nic = io_asic = ed98_ioaddr_la98;
518		offset = 0x0400;
519		reset = 7;
520		break;
521
522	case ED_TYPE98_NC5098:
523		io_nic  = ed98_ioaddr_nw98x;
524		io_asic = ed98_asic_nc5098;
525		offset = 0x2000;
526		reset = 7;
527		n = 16+8;	/* XXX */
528		break;
529	}
530
531	bcopy(io_nic, io_res, sizeof(io_nic[0]) * ED_NOVELL_ASIC_OFFSET);
532	for (i = ED_NOVELL_ASIC_OFFSET; i < ED_NOVELL_IO_PORTS; i++)
533		io_res[i] = io_asic[i - ED_NOVELL_ASIC_OFFSET] + offset;
534
535	res = isa_alloc_resourcev(dev, SYS_RES_IOPORT, &rid, io_res, n,
536	    RF_ACTIVE);
537	if (!res)
538		return (ENOENT);
539
540	sc->port_rid = rid;
541	sc->port_res = res;
542	sc->port_used = n;
543
544	/* Re-map i/o table if needed */
545	switch (sc->type) {
546	case ED_TYPE98_LA98:
547	case ED_TYPE98_NW98X:
548		io_res[n] = io_asic[n - ED_NOVELL_ASIC_OFFSET] + offset;
549		n++;
550		break;
551
552	case ED_TYPE98_108:
553		adj = (rman_get_start(res) & 0xf000) / 2;
554		offset = (offset | adj) - rman_get_start(res);
555
556		for (n = ED_NOVELL_ASIC_OFFSET; n < ED_NOVELL_IO_PORTS; n++)
557			io_res[n] = io_asic[n - ED_NOVELL_ASIC_OFFSET] + offset;
558		break;
559
560	case ED_TYPE98_CNET98:
561		io_nic = io_asic = ed98_ioaddr_cnet98;
562		offset = 1;
563
564		bcopy(io_nic, io_res, sizeof(io_nic[0]) * ED_NOVELL_ASIC_OFFSET);
565		for (n = ED_NOVELL_ASIC_OFFSET; n < ED_NOVELL_IO_PORTS; n++)
566			io_res[n] = io_asic[n - ED_NOVELL_ASIC_OFFSET] + offset;
567		break;
568
569	case ED_TYPE98_NC5098:
570		n = ED_NOVELL_IO_PORTS;
571		break;
572	}
573
574	if (reset != ED_NOVELL_RESET)
575		io_res[ED_NOVELL_ASIC_OFFSET + ED_NOVELL_RESET] =
576			io_res[ED_NOVELL_ASIC_OFFSET + reset];
577	if (data  != ED_NOVELL_DATA) {
578		io_res[ED_NOVELL_ASIC_OFFSET + ED_NOVELL_DATA] =
579			io_res[ED_NOVELL_ASIC_OFFSET + data];
580#if 0
581		io_res[ED_NOVELL_ASIC_OFFSET + ED_NOVELL_DATA + 1] =
582			io_res[ED_NOVELL_ASIC_OFFSET + data + 1];
583#endif
584	}
585
586	error = isa_load_resourcev(res, io_res, n);
587	if (error != 0)
588		return (ENOENT);
589#ifdef ED_DEBUG
590	device_printf(dev, "ed98_alloc_port: i/o ports = %d\n", n);
591	for (i = 0; i < n; i++)
592		printf("%x,", io_res[i]);
593	printf("\n");
594#endif
595	return (0);
596}
597
598static int
599ed98_alloc_memory(dev, rid)
600	device_t dev;
601	int rid;
602{
603	struct ed_softc *sc = device_get_softc(dev);
604	int error;
605	u_long conf_maddr, conf_msize;
606
607	error = bus_get_resource(dev, SYS_RES_MEMORY, 0, &conf_maddr,
608	    &conf_msize);
609	if (error)
610		return (error);
611
612	if ((conf_maddr == 0) || (conf_msize == 0))
613		return (ENXIO);
614
615	error = ed_alloc_memory(dev, rid, (int) conf_msize);
616	if (error)
617		return (error);
618
619	sc->mem_start = 0;
620	sc->mem_size  = conf_msize;
621
622	return (0);
623}
624
625/*
626 * Generic probe routine for testing for the existance of a DS8390.
627 *	Must be called after the NIC has just been reset. This routine
628 *	works by looking at certain register values that are guaranteed
629 *	to be initialized a certain way after power-up or reset. Seems
630 *	not to currently work on the 83C690.
631 *
632 * Specifically:
633 *
634 *	Register			reset bits	set bits
635 *	Command Register (CR)		TXP, STA	RD2, STP
636 *	Interrupt Status (ISR)				RST
637 *	Interrupt Mask (IMR)		All bits
638 *	Data Control (DCR)				LAS
639 *	Transmit Config. (TCR)		LB1, LB0
640 *
641 * XXX - We only check the CR register.
642 *
643 * Return 1 if 8390 was found, 0 if not.
644 */
645
646static int
647ed98_probe_generic8390(struct ed_softc *sc)
648{
649	u_char tmp = ed_nic_inb(sc, ED_P0_CR);
650#ifdef DIAGNOSTIC
651	printf("ed?: inb(ED_P0_CR)=%x\n", tmp);
652#endif
653	if ((tmp & (ED_CR_RD2 | ED_CR_TXP | ED_CR_STA | ED_CR_STP)) !=
654	    (ED_CR_RD2 | ED_CR_STP))
655		return (0);
656
657	(void) ed_nic_inb(sc, ED_P0_ISR);
658
659	return (1);
660}
661
662static int
663ed98_probe_Novell(device_t dev, int port_rid, int flags)
664{
665	struct ed_softc *sc = device_get_softc(dev);
666	int error;
667	int n;
668	u_char romdata[ETHER_ADDR_LEN * 2], tmp;
669
670#ifdef ED_DEBUG
671	device_printf(dev, "ed98_probe_Novell: start\n");
672#endif
673	error = ed98_alloc_port(dev, port_rid);
674	if (error)
675		return (error);
676
677	sc->asic_offset = ED_NOVELL_ASIC_OFFSET;
678	sc->nic_offset  = ED_NOVELL_NIC_OFFSET;
679
680	/* Reset the board */
681#ifdef ED_DEBUG
682	device_printf(dev, "ed98_probe_Novell: reset\n");
683#endif
684	switch (sc->type) {
685#if 1	/* XXX - I'm not sure this is really necessary... */
686	case ED_TYPE98_BDN:
687		tmp = ed_asic_inb(sc, ED_NOVELL_RESET);
688		ed_asic_outb(sc, ED_NOVELL_RESET, (tmp & 0xf0) | 0x08);
689		ed_nic_outb(sc, 0x04, tmp);
690		(void) ed_asic_inb(sc, 0x08);
691		ed_asic_outb(sc, 0x08, tmp);
692		ed_asic_outb(sc, 0x08, tmp & 0x7f);
693		break;
694#endif
695	case ED_TYPE98_NC5098:
696		ed_asic_outb(sc, ED_NOVELL_RESET, 0x00);
697		DELAY(5000);
698		ed_asic_outb(sc, ED_NOVELL_RESET, 0x01);
699		break;
700
701	default:
702		tmp = ed_asic_inb(sc, ED_NOVELL_RESET);
703
704	/*
705	 * I don't know if this is necessary; probably cruft leftover from
706	 * Clarkson packet driver code. Doesn't do a thing on the boards I've
707	 * tested. -DG [note that an outb(0x84, 0) seems to work here, and is
708	 * non-invasive...but some boards don't seem to reset and I don't have
709	 * complete documentation on what the 'right' thing to do is...so we
710	 * do the invasive thing for now. Yuck.]
711	 */
712		ed_asic_outb(sc, ED_NOVELL_RESET, tmp);
713		break;
714	}
715	DELAY(5000);
716
717	/*
718	 * This is needed because some NE clones apparently don't reset the
719	 * NIC properly (or the NIC chip doesn't reset fully on power-up) XXX
720	 * - this makes the probe invasive! ...Done against my better
721	 * judgement. -DLG
722	 */
723	ed_nic_outb(sc, ED_P0_CR, ED_CR_RD2 | ED_CR_STP);
724	DELAY(5000);
725
726	/* Make sure that we really have an 8390 based board */
727	if (!ed98_probe_generic8390(sc))
728		return (ENXIO);
729
730	/* Test memory via PIO */
731#ifdef ED_DEBUG
732	device_printf(dev, "ed98_probe_Novell: test memory\n");
733#endif
734	sc->cr_proto = ED_CR_RD2;
735	if (!ed_pio_testmem(sc,  8192, 0, flags) &&
736	    !ed_pio_testmem(sc, 16384, 1, flags))
737		return (ENXIO);
738
739	/* Setup the board type */
740#ifdef ED_DEBUG
741	device_printf(dev, "ed98_probe_Novell: board type\n");
742#endif
743	switch (sc->type) {
744	case ED_TYPE98_BDN:
745		sc->type_str = "LD-BDN";
746		break;
747	case ED_TYPE98_EGY:
748		sc->type_str = "EGY-98";
749		break;
750	case ED_TYPE98_LGY:
751		sc->type_str = "LGY-98";
752		break;
753	case ED_TYPE98_ICM:
754		sc->type_str = "ICM";
755		break;
756	case ED_TYPE98_108:
757		sc->type_str = "PC-9801-108";
758		break;
759	case ED_TYPE98_LA98:
760		sc->type_str = "LA-98";
761		break;
762	case ED_TYPE98_NW98X:
763		sc->type_str = "NW98X";
764		break;
765	case ED_TYPE98_NC5098:
766		sc->type_str = "NC5098";
767		break;
768	default:
769		sc->type_str = NULL;
770		break;
771	}
772
773	/* Get station address */
774	switch (sc->type) {
775	case ED_TYPE98_NC5098:
776		for (n = 0; n < ETHER_ADDR_LEN; n++)
777			sc->enaddr[n] = ed_asic_inb(sc, ED_NC5098_ENADDR + n);
778		break;
779
780	default:
781		ed_pio_readmem(sc, 0, romdata, sizeof(romdata));
782		for (n = 0; n < ETHER_ADDR_LEN; n++)
783			sc->enaddr[n] = romdata[n * (sc->isa16bit + 1)];
784		break;
785	}
786
787	/* clear any pending interrupts that might have occurred above */
788	ed_nic_outb(sc, ED_P0_ISR, 0xff);
789
790	return (0);
791}
792
793/*
794 * Probe and vendor-specific initialization routine for SIC-98 boards
795 */
796static int
797ed_probe_SIC98(device_t dev, int port_rid, int flags)
798{
799	struct ed_softc *sc = device_get_softc(dev);
800	int error;
801	int i;
802	u_char sum;
803
804	/*
805	 * Setup card RAM and I/O address
806	 * Kernel Virtual to segment C0000-DFFFF????
807	 */
808	error = ed98_alloc_port(dev, port_rid);
809	if (error)
810		return (error);
811
812	sc->asic_offset = ED_SIC_ASIC_OFFSET;
813	sc->nic_offset  = ED_SIC_NIC_OFFSET;
814
815	error = ed98_alloc_memory(dev, 0);
816	if (error)
817		return (error);
818
819	/* Reset card to force it into a known state. */
820	ed_asic_outb(sc, 0, 0x00);
821	DELAY(100);
822	if (ED_TYPE98SUB(flags) == 0) {
823		/* SIC-98/SIU-98 */
824		ed_asic_outb(sc, 0, 0x94);
825		DELAY(100);
826		ed_asic_outb(sc, 0, 0x94);
827	} else {
828		/* SIU-98-D */
829		ed_asic_outb(sc, 0, 0x80);
830		DELAY(100);
831		ed_asic_outb(sc, 0, 0x94);
832		DELAY(100);
833		ed_asic_outb(sc, 0, 0x9e);
834	}
835	DELAY(100);
836
837	/*
838	 * Here we check the card ROM, if the checksum passes, and the
839	 * type code and ethernet address check out, then we know we have
840	 * an SIC card.
841	 */
842	sum = bus_space_read_1(sc->mem_bst, sc->mem_bsh, 6 * 2);
843	for (i = 0; i < ETHER_ADDR_LEN; i++)
844		sum ^= (sc->enaddr[i] =
845		    bus_space_read_1(sc->mem_bst, sc->mem_bsh, i * 2));
846#ifdef ED_DEBUG
847	device_printf(dev, "ed_probe_sic98: got address %6D\n",
848		      sc->enaddr, ":");
849#endif
850	if (sum != 0)
851		return (ENXIO);
852	if ((sc->enaddr[0] | sc->enaddr[1] | sc->enaddr[2]) == 0)
853		return (ENXIO);
854
855	sc->vendor   = ED_VENDOR_SIC;
856	sc->type_str = "SIC98";
857	sc->isa16bit = 1;
858	sc->cr_proto = 0;
859
860	/*
861	 * SIC RAM page 0x0000-0x3fff(or 0x7fff)
862	 */
863	if (ED_TYPE98SUB(flags) == 0)
864		ed_asic_outb(sc, 0, 0x90);
865	else
866		ed_asic_outb(sc, 0, 0x8e);
867	DELAY(100);
868
869	error = ed_clear_memory(dev);
870	if (error)
871		return (error);
872
873	sc->mem_shared = 1;
874	sc->mem_end = sc->mem_start + sc->mem_size;
875
876	/*
877	 * allocate one xmit buffer if < 16k, two buffers otherwise
878	 */
879	if ((sc->mem_size < 16384) || (flags & ED_FLAGS_NO_MULTI_BUFFERING))
880		sc->txb_cnt = 1;
881	else
882		sc->txb_cnt = 2;
883	sc->tx_page_start = 0;
884
885	sc->rec_page_start = sc->tx_page_start + ED_TXBUF_SIZE * sc->txb_cnt;
886	sc->rec_page_stop = sc->tx_page_start + sc->mem_size / ED_PAGE_SIZE;
887
888	sc->mem_ring = sc->mem_start + sc->txb_cnt * ED_PAGE_SIZE * ED_TXBUF_SIZE;
889
890	return (0);
891}
892
893/*
894 * Contec C-NET(98) series support routines
895 */
896static void
897ed_reset_CNET98(struct ed_softc *sc, int flags)
898{
899	u_int init_addr = ED_CNET98_INIT;
900	u_char tmp;
901
902	/* Choose initial register address */
903	if (ED_TYPE98SUB(flags) != 0) {
904		init_addr = ED_CNET98_INIT2;
905	}
906#ifdef ED_DEBUG
907	printf("ed?: initial register=%x\n", init_addr);
908#endif
909	/*
910	 * Reset the board to force it into a known state.
911	 */
912	outb(init_addr, 0x00);	/* request */
913	DELAY(5000);
914	outb(init_addr, 0x01);	/* cancel */
915	DELAY(5000);
916
917	/*
918	 * Set I/O address(A15-12) and cpu type
919	 *
920	 *   AAAAIXXC(8bit)
921	 *   AAAA: A15-A12,  I: I/O enable, XX: reserved, C: CPU type
922	 *
923	 * CPU type is 1:80286 or higher, 0:not.
924	 * But FreeBSD runs under i386 or higher, thus it must be 1.
925	 */
926	tmp = (rman_get_start(sc->port_res) & 0xf000) >> 8;
927	tmp |= (0x08 | 0x01);
928#ifdef ED_DEBUG
929	printf("ed?: outb(%x, %x)\n", init_addr + 2, tmp);
930#endif
931	outb(init_addr + 2, tmp);
932	DELAY(5000);
933
934	/*
935	 * This is needed because some NE clones apparently don't reset the
936	 * NIC properly (or the NIC chip doesn't reset fully on power-up) XXX
937	 * - this makes the probe invasive! ...Done against my better
938	 * judgement. -DLG
939	 */
940	ed_nic_outb(sc, ED_P0_CR, ED_CR_RD2 | ED_CR_STP);
941	DELAY(5000);
942}
943
944static void
945ed_winsel_CNET98(struct ed_softc *sc, u_short bank)
946{
947	u_char mem = (rman_get_start(sc->mem_res) >> 12) & 0xff;
948
949	/*
950	 * Disable window memory
951	 *    bit7 is 0:disable
952	 */
953	ed_asic_outb(sc, ED_CNET98_WIN_REG, mem & 0x7f);
954	DELAY(10);
955
956	/*
957	 * Select window address
958	 *    FreeBSD address 0xf00xxxxx
959	 */
960	ed_asic_outb(sc, ED_CNET98_MAP_REG0L, bank & 0xff);
961	DELAY(10);
962	ed_asic_outb(sc, ED_CNET98_MAP_REG0H, (bank >> 8) & 0xff);
963	DELAY(10);
964	ed_asic_outb(sc, ED_CNET98_MAP_REG1L, 0x00);
965	DELAY(10);
966	ed_asic_outb(sc, ED_CNET98_MAP_REG1H, 0x41);
967	DELAY(10);
968	ed_asic_outb(sc, ED_CNET98_MAP_REG2L, 0x00);
969	DELAY(10);
970	ed_asic_outb(sc, ED_CNET98_MAP_REG2H, 0x42);
971	DELAY(10);
972	ed_asic_outb(sc, ED_CNET98_MAP_REG3L, 0x00);
973	DELAY(10);
974	ed_asic_outb(sc, ED_CNET98_MAP_REG3H, 0x43);
975	DELAY(10);
976
977	/*
978	 * Enable window memory(16Kbyte)
979	 *    bit7 is 1:enable
980	 */
981#ifdef ED_DEBUG
982	printf("ed?: window start address=%x\n", mem);
983#endif
984	ed_asic_outb(sc, ED_CNET98_WIN_REG, mem);
985	DELAY(10);
986}
987
988/*
989 * Probe and vendor-specific initialization routine for C-NET(98) boards
990 */
991static int
992ed_probe_CNET98(device_t dev, int port_rid, int flags)
993{
994	struct ed_softc *sc = device_get_softc(dev);
995	int error;
996	u_char tmp;
997	u_long conf_irq, junk;
998#ifdef DIAGNOSTIC
999	u_char tmp_s;
1000#endif
1001
1002	error = ed98_alloc_port(dev, port_rid);
1003	if (error)
1004		return (error);
1005
1006	sc->asic_offset = ED_NOVELL_ASIC_OFFSET;
1007	sc->nic_offset  = ED_NOVELL_NIC_OFFSET;
1008
1009	error = ed98_alloc_memory(dev, 0);
1010	if (error)
1011		return (error);
1012
1013	/* Check I/O address. 0x[a-f]3d0 are allowed. */
1014	if (((rman_get_start(sc->port_res) & 0x0fff) != 0x03d0)
1015	||  ((rman_get_start(sc->port_res) & 0xf000) < (u_short) 0xa000)) {
1016#ifdef DIAGNOSTIC
1017		device_printf(dev, "Invalid i/o port configuration (0x%lx) "
1018			"must be %s for %s\n", rman_get_start(sc->port_res),
1019			"0x[a-f]3d0", "CNET98");
1020#endif
1021		return (ENXIO);
1022	}
1023
1024#ifdef DIAGNOSTIC
1025	/* Check window area address */
1026	tmp_s = rman_get_start(sc->mem_res) >> 12;
1027	if (tmp_s < 0x80) {
1028		device_printf(dev, "Please change window address(0x%lx)\n",
1029		    rman_get_start(sc->mem_res));
1030		return (ENXIO);
1031	}
1032
1033	tmp_s &= 0x0f;
1034	tmp    = rman_get_start(sc->port_res) >> 12;
1035	if ((tmp_s <= tmp) && (tmp < (tmp_s + 4))) {
1036		device_printf(dev, "Please change iobase address(0x%lx) "
1037		    "or window address(0x%lx)\n",
1038		    rman_get_start(sc->port_res),
1039		    rman_get_start(sc->mem_res));
1040		return (ENXIO);
1041	}
1042#endif
1043	/* Reset the board */
1044	ed_reset_CNET98(sc, flags);
1045
1046	/*
1047	 * This is needed because some NE clones apparently don't reset the
1048	 * NIC properly (or the NIC chip doesn't reset fully on power-up) XXX
1049	 * - this makes the probe invasive! ...Done against my better
1050	 * judgement. -DLG
1051	 */
1052	ed_nic_outb(sc, ED_P0_CR, ED_CR_RD2 | ED_CR_STP);
1053	DELAY(5000);
1054
1055	/* Make sure that we really have an 8390 based board */
1056	if (!ed98_probe_generic8390(sc))
1057		return (ENXIO);
1058
1059	/*
1060	 *  Set window ethernet address area
1061	 *    board memory base 0x480000  data 256byte
1062	 */
1063	ed_winsel_CNET98(sc, 0x4800);
1064
1065	/*
1066	 * Get station address from on-board ROM
1067	 */
1068	bus_space_read_region_1(sc->mem_bst, sc->mem_bsh, sc->mem_start,
1069	    sc->enaddr, ETHER_ADDR_LEN);
1070
1071	sc->vendor    = ED_VENDOR_MISC;
1072	sc->type_str  = "CNET98";
1073	sc->isa16bit  = 0;
1074	sc->cr_proto  = ED_CR_RD2;
1075
1076	/*
1077	 * Set window buffer memory area
1078	 *    board memory base 0x400000  data 16kbyte
1079	 */
1080	ed_winsel_CNET98(sc, 0x4000);
1081
1082	error = ed_clear_memory(dev);
1083	if (error)
1084		return (error);
1085
1086	sc->mem_shared = 1;
1087	sc->mem_end = sc->mem_start + sc->mem_size;
1088
1089	sc->txb_cnt = 1;	/* XXX */
1090	sc->tx_page_start = 0;
1091
1092	sc->rec_page_start = sc->tx_page_start + ED_TXBUF_SIZE;
1093	sc->rec_page_stop = sc->tx_page_start + sc->mem_size / ED_PAGE_SIZE;
1094
1095	sc->mem_ring = sc->mem_start + ED_PAGE_SIZE * ED_TXBUF_SIZE;
1096
1097	/*
1098	 *   Set interrupt level
1099	 */
1100	error = bus_get_resource(dev, SYS_RES_IRQ, 0, &conf_irq, &junk);
1101	if (error)
1102		return (error);
1103
1104	switch (conf_irq) {
1105	case 3:
1106		tmp = ED_CNET98_INT_IRQ3;
1107		break;
1108	case 5:
1109		tmp = ED_CNET98_INT_IRQ5;
1110		break;
1111	case 6:
1112		tmp = ED_CNET98_INT_IRQ6;
1113		break;
1114	case 9:
1115		tmp = ED_CNET98_INT_IRQ9;
1116		break;
1117	case 12:
1118		tmp = ED_CNET98_INT_IRQ12;
1119		break;
1120	case 13:
1121		tmp = ED_CNET98_INT_IRQ13;
1122		break;
1123	default:
1124		device_printf(dev, "Invalid irq configuration (%ld) must be "
1125			"%s for %s\n", conf_irq, "3,5,6,9,12,13", "CNET98");
1126		return (ENXIO);
1127	}
1128	ed_asic_outb(sc, ED_CNET98_INT_LEV, tmp);
1129	DELAY(1000);
1130	/*
1131	 *   Set interrupt mask.
1132	 *     bit7:1 all interrupt mask
1133	 *     bit1:1 timer interrupt mask
1134	 *     bit0:0 NS controler interrupt enable
1135	 */
1136	ed_asic_outb(sc, ED_CNET98_INT_MASK, 0x7e);
1137	DELAY(1000);
1138
1139	return (0);
1140}
1141
1142/*
1143 * Probe and vendor-specific initialization routine for C-NET(98)E/L boards
1144 */
1145static int
1146ed_probe_CNET98EL(device_t dev, int port_rid, int flags)
1147{
1148	struct ed_softc *sc = device_get_softc(dev);
1149	int error;
1150	int i;
1151	u_char romdata[ETHER_ADDR_LEN * 2], tmp;
1152	u_long conf_irq, junk;
1153
1154	error = ed98_alloc_port(dev, port_rid);
1155	if (error)
1156		return (error);
1157
1158	sc->asic_offset = ED_NOVELL_ASIC_OFFSET;
1159	sc->nic_offset  = ED_NOVELL_NIC_OFFSET;
1160
1161	/* Check I/O address. 0x[0-f]3d0 are allowed. */
1162	if ((rman_get_start(sc->port_res) & 0x0fff) != 0x03d0) {
1163#ifdef DIAGNOSTIC
1164		device_printf(dev, "Invalid i/o port configuration (0x%lx) "
1165			"must be %s for %s\n", rman_get_start(sc->port_res),
1166			"0x?3d0", "CNET98E/L");
1167#endif
1168		return (ENXIO);
1169	}
1170
1171	/* Reset the board */
1172	ed_reset_CNET98(sc, flags);
1173
1174	/*
1175	 * This is needed because some NE clones apparently don't reset the
1176	 * NIC properly (or the NIC chip doesn't reset fully on power-up) XXX
1177	 * - this makes the probe invasive! ...Done against my better
1178	 * judgement. -DLG
1179	 */
1180	ed_nic_outb(sc, ED_P0_CR, ED_CR_RD2 | ED_CR_STP);
1181	DELAY(5000);
1182
1183	/* Make sure that we really have an 8390 based board */
1184	if (!ed98_probe_generic8390(sc))
1185		return (ENXIO);
1186
1187	/* Test memory via PIO */
1188	sc->cr_proto = ED_CR_RD2;
1189	if (!ed_pio_testmem(sc, ED_CNET98EL_PAGE_OFFSET, 1, flags))
1190		return (ENXIO);
1191
1192	/* This looks like a C-NET(98)E/L board. */
1193	sc->type_str = "CNET98E/L";
1194
1195	/*
1196	 * Set IRQ. C-NET(98)E/L only allows a choice of irq 3,5,6.
1197	 */
1198	error = bus_get_resource(dev, SYS_RES_IRQ, 0, &conf_irq, &junk);
1199	if (error)
1200		return (error);
1201
1202	switch (conf_irq) {
1203	case 3:
1204		tmp = ED_CNET98EL_ICR_IRQ3;
1205		break;
1206	case 5:
1207		tmp = ED_CNET98EL_ICR_IRQ5;
1208		break;
1209	case 6:
1210		tmp = ED_CNET98EL_ICR_IRQ6;
1211		break;
1212#if 0
1213	case 12:
1214		tmp = ED_CNET98EL_ICR_IRQ12;
1215		break;
1216#endif
1217	default:
1218		device_printf(dev, "Invalid irq configuration (%ld) must be "
1219			"%s for %s\n", conf_irq, "3,5,6", "CNET98E/L");
1220		return (ENXIO);
1221	}
1222	ed_asic_outb(sc, ED_CNET98EL_ICR, tmp);
1223	ed_asic_outb(sc, ED_CNET98EL_IMR, 0x7e);
1224
1225	/* Get station address from on-board ROM */
1226	ed_pio_readmem(sc, 16384, romdata, sizeof(romdata));
1227	for (i = 0; i < ETHER_ADDR_LEN; i++)
1228		sc->enaddr[i] = romdata[i * 2];
1229
1230	/* clear any pending interrupts that might have occurred above */
1231	ed_nic_outb(sc, ED_P0_ISR, 0xff);
1232
1233	return (0);
1234}
1235
1236/*
1237 * Probe and vendor-specific initialization routine for PC-9801-77 boards
1238 */
1239static int
1240ed_probe_NEC77(device_t dev, int port_rid, int flags)
1241{
1242	struct ed_softc *sc = device_get_softc(dev);
1243	int error;
1244	u_char tmp;
1245	u_long conf_irq, junk;
1246
1247	error = ed98_probe_Novell(dev, port_rid, flags);
1248	if (error)
1249		return (error);
1250
1251	/* LA/T-98 does not need IRQ setting. */
1252	if (ED_TYPE98SUB(flags) == 0)
1253		return (0);
1254
1255	/*
1256	 * Set IRQ. PC-9801-77 only allows a choice of irq 3,5,6,12,13.
1257	 */
1258	error = bus_get_resource(dev, SYS_RES_IRQ, 0, &conf_irq, &junk);
1259	if (error)
1260		return (error);
1261
1262	switch (conf_irq) {
1263	case 3:
1264		tmp = ED_NEC77_IRQ3;
1265		break;
1266	case 5:
1267		tmp = ED_NEC77_IRQ5;
1268		break;
1269	case 6:
1270		tmp = ED_NEC77_IRQ6;
1271		break;
1272	case 12:
1273		tmp = ED_NEC77_IRQ12;
1274		break;
1275	case 13:
1276		tmp = ED_NEC77_IRQ13;
1277		break;
1278	default:
1279		device_printf(dev, "Invalid irq configuration (%ld) must be "
1280			"%s for %s\n", conf_irq, "3,5,6,12,13", "PC-9801-77");
1281		return (ENXIO);
1282	}
1283	ed_asic_outb(sc, ED_NEC77_IRQ, tmp);
1284
1285	return (0);
1286}
1287
1288/*
1289 * Probe and vendor-specific initialization routine for EC/EP-98X boards
1290 */
1291static int
1292ed_probe_NW98X(device_t dev, int port_rid, int flags)
1293{
1294	struct ed_softc *sc = device_get_softc(dev);
1295	int error;
1296	u_char tmp;
1297	u_long conf_irq, junk;
1298
1299	error = ed98_probe_Novell(dev, port_rid, flags);
1300	if (error)
1301		return (error);
1302
1303	/* Networld 98X3 does not need IRQ setting. */
1304	if (ED_TYPE98SUB(flags) == 0)
1305		return (0);
1306
1307	/*
1308	 * Set IRQ. EC/EP-98X only allows a choice of irq 3,5,6,12,13.
1309	 */
1310	error = bus_get_resource(dev, SYS_RES_IRQ, 0, &conf_irq, &junk);
1311	if (error)
1312		return (error);
1313
1314	switch (conf_irq) {
1315	case 3:
1316		tmp = ED_NW98X_IRQ3;
1317		break;
1318	case 5:
1319		tmp = ED_NW98X_IRQ5;
1320		break;
1321	case 6:
1322		tmp = ED_NW98X_IRQ6;
1323		break;
1324	case 12:
1325		tmp = ED_NW98X_IRQ12;
1326		break;
1327	case 13:
1328		tmp = ED_NW98X_IRQ13;
1329		break;
1330	default:
1331		device_printf(dev, "Invalid irq configuration (%ld) must be "
1332			"%s for %s\n", conf_irq, "3,5,6,12,13", "EC/EP-98X");
1333		return (ENXIO);
1334	}
1335	ed_asic_outb(sc, ED_NW98X_IRQ, tmp);
1336
1337	return (0);
1338}
1339
1340/*
1341 * Read SB-9801 station address from Serial Two-Wire EEPROM
1342 */
1343static void
1344ed_get_SB98(struct ed_softc *sc)
1345{
1346	int i, j;
1347	u_char mask, val;
1348
1349        /* enable EEPROM acceess */
1350        ed_asic_outb(sc, ED_SB98_EEPENA, ED_SB98_EEPENA_ENABLE);
1351
1352	/* output start command */
1353	ed_asic_outb(sc, ED_SB98_EEP, ED_SB98_EEP_SDA | ED_SB98_EEP_SCL);
1354	DELAY(ED_SB98_EEP_DELAY);
1355	ed_asic_outb(sc, ED_SB98_EEP, ED_SB98_EEP_SCL);
1356	DELAY(ED_SB98_EEP_DELAY);
1357
1358       	/* output address (7bit) */
1359	for (mask = 0x40; mask != 0; mask >>= 1) {
1360		val = 0;
1361		if (ED_SB98_ADDRESS & mask)
1362			val = ED_SB98_EEP_SDA;
1363		ed_asic_outb(sc, ED_SB98_EEP, val);
1364		DELAY(ED_SB98_EEP_DELAY);
1365		ed_asic_outb(sc, ED_SB98_EEP, val | ED_SB98_EEP_SCL);
1366		DELAY(ED_SB98_EEP_DELAY);
1367	}
1368
1369	/* output READ command */
1370	ed_asic_outb(sc, ED_SB98_EEP, ED_SB98_EEP_READ);
1371	DELAY(ED_SB98_EEP_DELAY);
1372	ed_asic_outb(sc, ED_SB98_EEP, ED_SB98_EEP_READ | ED_SB98_EEP_SCL);
1373	DELAY(ED_SB98_EEP_DELAY);
1374
1375	/* read station address */
1376	for (i = 0; i < ETHER_ADDR_LEN; i++) {
1377		/* output ACK */
1378		ed_asic_outb(sc, ED_SB98_EEP, 0);
1379		DELAY(ED_SB98_EEP_DELAY);
1380		ed_asic_outb(sc, ED_SB98_EEP, ED_SB98_EEP_SCL);
1381		DELAY(ED_SB98_EEP_DELAY);
1382
1383		val = 0;
1384		for (j = 0; j < 8; j++) {
1385			ed_asic_outb(sc, ED_SB98_EEP, ED_SB98_EEP_SDA);
1386			DELAY(ED_SB98_EEP_DELAY);
1387			ed_asic_outb(sc, ED_SB98_EEP, ED_SB98_EEP_SDA | ED_SB98_EEP_SCL);
1388			DELAY(ED_SB98_EEP_DELAY);
1389			val <<= 1;
1390			val |= (ed_asic_inb(sc, ED_SB98_EEP) & ED_SB98_EEP_SDA);
1391			DELAY(ED_SB98_EEP_DELAY);
1392	  	}
1393		sc->enaddr[i] = val;
1394	}
1395
1396	/* output Last ACK */
1397        ed_asic_outb(sc, ED_SB98_EEP, ED_SB98_EEP_SDA);
1398        DELAY(ED_SB98_EEP_DELAY);
1399        ed_asic_outb(sc, ED_SB98_EEP, ED_SB98_EEP_SDA | ED_SB98_EEP_SCL);
1400        DELAY(ED_SB98_EEP_DELAY);
1401
1402	/* output stop command */
1403	ed_asic_outb(sc, ED_SB98_EEP, ED_SB98_EEP_SCL);
1404	DELAY(ED_SB98_EEP_DELAY);
1405	ed_asic_outb(sc, ED_SB98_EEP, ED_SB98_EEP_SDA | ED_SB98_EEP_SCL);
1406	DELAY(ED_SB98_EEP_DELAY);
1407
1408	/* disable EEPROM access */
1409	ed_asic_outb(sc, ED_SB98_EEPENA, ED_SB98_EEPENA_DISABLE);
1410}
1411
1412/*
1413 * Probe and vendor-specific initialization routine for SB-9801 boards
1414 */
1415static int
1416ed_probe_SB98(device_t dev, int port_rid, int flags)
1417{
1418	struct ed_softc *sc = device_get_softc(dev);
1419	int error;
1420	u_char tmp;
1421	u_long conf_irq, junk;
1422
1423	error = ed98_alloc_port(dev, port_rid);
1424	if (error)
1425		return (error);
1426
1427	sc->asic_offset = ED_NOVELL_ASIC_OFFSET;
1428	sc->nic_offset  = ED_NOVELL_NIC_OFFSET;
1429
1430	/* Check I/O address. 00d[02468ace] are allowed. */
1431	if ((rman_get_start(sc->port_res) & ~0x000e) != 0x00d0) {
1432#ifdef DIAGNOSTIC
1433		device_printf(dev, "Invalid i/o port configuration (0x%lx) "
1434		    "must be %s for %s\n", rman_get_start(sc->port_res),
1435		    "0xd?", "SB9801");
1436#endif
1437		return (ENXIO);
1438	}
1439
1440	/* Write I/O port address and read 4 times */
1441	outb(ED_SB98_IO_INHIBIT, rman_get_start(sc->port_res) & 0xff);
1442	(void) inb(ED_SB98_IO_INHIBIT); DELAY(300);
1443	(void) inb(ED_SB98_IO_INHIBIT); DELAY(300);
1444	(void) inb(ED_SB98_IO_INHIBIT); DELAY(300);
1445	(void) inb(ED_SB98_IO_INHIBIT); DELAY(300);
1446
1447	/*
1448	 * Check IRQ. Soliton SB-9801 only allows a choice of
1449	 * irq 3,5,6,12
1450	 */
1451	error = bus_get_resource(dev, SYS_RES_IRQ, 0, &conf_irq, &junk);
1452	if (error)
1453		return (error);
1454
1455	switch (conf_irq) {
1456	case 3:
1457		tmp = ED_SB98_CFG_IRQ3;
1458		break;
1459	case 5:
1460		tmp = ED_SB98_CFG_IRQ5;
1461		break;
1462	case 6:
1463		tmp = ED_SB98_CFG_IRQ6;
1464		break;
1465	case 12:
1466		tmp = ED_SB98_CFG_IRQ12;
1467		break;
1468	default:
1469		device_printf(dev, "Invalid irq configuration (%ld) must be "
1470			"%s for %s\n", conf_irq, "3,5,6,12", "SB9801");
1471		return (ENXIO);
1472	}
1473
1474	if (flags & ED_FLAGS_DISABLE_TRANCEIVER)
1475		tmp |= ED_SB98_CFG_ALTPORT;
1476	ed_asic_outb(sc, ED_SB98_CFG, ED_SB98_CFG_ENABLE | tmp);
1477	ed_asic_outb(sc, ED_SB98_POLARITY, 0x01);
1478
1479	/* Reset the board. */
1480	ed_asic_outb(sc, ED_NOVELL_RESET, 0x7a);
1481	DELAY(300);
1482	ed_asic_outb(sc, ED_NOVELL_RESET, 0x79);
1483	DELAY(300);
1484
1485	/*
1486	 * This is needed because some NE clones apparently don't reset the
1487	 * NIC properly (or the NIC chip doesn't reset fully on power-up) XXX
1488	 * - this makes the probe invasive! ...Done against my better
1489	 * judgement. -DLG
1490	 */
1491	ed_nic_outb(sc, ED_P0_CR, ED_CR_RD2 | ED_CR_STP);
1492	DELAY(5000);
1493
1494	/* Make sure that we really have an 8390 based board */
1495	if (!ed98_probe_generic8390(sc))
1496		return (ENXIO);
1497
1498	/* Test memory via PIO */
1499	sc->cr_proto = ED_CR_RD2;
1500	if (!ed_pio_testmem(sc, 16384, 1, flags)) {
1501		return (ENXIO);
1502	}
1503
1504	/* This looks like an SB9801 board. */
1505	sc->type_str = "SB9801";
1506
1507	/* Get station address */
1508	ed_get_SB98(sc);
1509
1510	/* clear any pending interrupts that might have occurred above */
1511	ed_nic_outb(sc, ED_P0_ISR, 0xff);
1512
1513	return (0);
1514}
1515
1516/*
1517 * Test the ability to read and write to the NIC memory.
1518 */
1519static int
1520ed_pio_testmem(struct ed_softc *sc, int page_offset, int isa16bit, int flags)
1521{
1522	u_long memsize;
1523	static char test_pattern[32] = "THIS is A memory TEST pattern";
1524	char test_buffer[32];
1525#ifdef DIAGNOSTIC
1526	int page_end;
1527#endif
1528
1529	sc->vendor = ED_VENDOR_NOVELL;
1530	sc->mem_shared = 0;
1531	sc->isa16bit = isa16bit;
1532
1533	/* 8k of memory plus an additional 8k if 16bit */
1534	memsize = (isa16bit ? 16384 : 8192);
1535
1536	/*
1537	 * This prevents packets from being stored in the NIC memory when the
1538	 * readmem routine turns on the start bit in the CR.
1539	 */
1540	ed_nic_outb(sc, ED_P0_RCR, ED_RCR_MON);
1541
1542	/* Initialize DCR for byte/word operations */
1543	if (isa16bit)
1544		ed_nic_outb(sc, ED_P0_DCR, ED_DCR_WTS | ED_DCR_FT1 | ED_DCR_LS);
1545	else
1546		ed_nic_outb(sc, ED_P0_DCR, ED_DCR_FT1 | ED_DCR_LS);
1547	ed_nic_outb(sc, ED_P0_PSTART, page_offset / ED_PAGE_SIZE);
1548	ed_nic_outb(sc, ED_P0_PSTOP, (page_offset + memsize) / ED_PAGE_SIZE);
1549#ifdef ED_DEBUG
1550	printf("ed?: ed_pio_testmem: page start=%x, end=%lx",
1551	    page_offset, page_offset + memsize);
1552#endif
1553
1554	/*
1555	 * Write a test pattern. If this fails, then we don't know
1556	 * what this board is.
1557	 */
1558	ed_pio_writemem(sc, test_pattern, page_offset, sizeof(test_pattern));
1559	ed_pio_readmem(sc, page_offset, test_buffer, sizeof(test_pattern));
1560
1561	if (bcmp(test_pattern, test_buffer, sizeof(test_pattern))) {
1562#ifdef ED_DEBUG
1563		printf("ed?: ed_pio_testmem: bcmp(page %x) NG", page_offset);
1564#endif
1565		return (0);
1566	}
1567
1568#ifdef DIAGNOSTIC
1569	/* Check the bottom. */
1570	page_end = page_offset + memsize - ED_PAGE_SIZE;
1571	ed_pio_writemem(sc, test_pattern, page_end, sizeof(test_pattern));
1572	ed_pio_readmem(sc, page_end, test_buffer, sizeof(test_pattern));
1573
1574	if (bcmp(test_pattern, test_buffer, sizeof(test_pattern))) {
1575#ifdef ED_DEBUG
1576		printf("ed?: ed_pio_testmem: bcmp(page %x) NG", page_end);
1577#endif
1578		return (0);
1579	}
1580#endif
1581	sc->mem_size = memsize;
1582	sc->mem_start = page_offset;
1583	sc->mem_end   = sc->mem_start + memsize;
1584	sc->tx_page_start = page_offset / ED_PAGE_SIZE;
1585
1586	/*
1587	 * Use one xmit buffer if < 16k, two buffers otherwise (if not told
1588	 * otherwise).
1589	 */
1590	if ((memsize < 16384) || (flags & ED_FLAGS_NO_MULTI_BUFFERING))
1591		sc->txb_cnt = 1;
1592	else
1593		sc->txb_cnt = 2;
1594
1595	sc->rec_page_start = sc->tx_page_start + sc->txb_cnt * ED_TXBUF_SIZE;
1596	sc->rec_page_stop  = sc->tx_page_start + memsize / ED_PAGE_SIZE;
1597
1598	sc->mem_ring = sc->mem_start + sc->txb_cnt * ED_PAGE_SIZE * ED_TXBUF_SIZE;
1599
1600	return (1);
1601}
1602
1603static device_method_t ed_cbus_methods[] = {
1604	/* Device interface */
1605	DEVMETHOD(device_probe,		ed_cbus_probe),
1606	DEVMETHOD(device_attach,	ed_cbus_attach),
1607	DEVMETHOD(device_attach,	ed_detach),
1608
1609	{ 0, 0 }
1610};
1611
1612static driver_t ed_cbus_driver = {
1613	"ed",
1614	ed_cbus_methods,
1615	sizeof(struct ed_softc)
1616};
1617
1618DRIVER_MODULE(ed, isa, ed_cbus_driver, ed_devclass, 0, 0);
1619MODULE_DEPEND(ed, isa, 1, 1, 1);
1620MODULE_DEPEND(ed, ether, 1, 1, 1);
1621