1 /* $NetBSD: if_le_isa.c,v 1.41 2005/12/24 20:27:41 perry Exp $ */
2
3 /*-
4 * SPDX-License-Identifier: BSD-2-Clause AND BSD-3-Clause
5 *
6 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
7 * All rights reserved.
8 *
9 * This code is derived from software contributed to The NetBSD Foundation
10 * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace
11 * Simulation Facility, NASA Ames Research Center.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
33 */
34
35 /*-
36 * Copyright (c) 1992, 1993
37 * The Regents of the University of California. All rights reserved.
38 *
39 * This code is derived from software contributed to Berkeley by
40 * Ralph Campbell and Rick Macklem.
41 *
42 * Redistribution and use in source and binary forms, with or without
43 * modification, are permitted provided that the following conditions
44 * are met:
45 * 1. Redistributions of source code must retain the above copyright
46 * notice, this list of conditions and the following disclaimer.
47 * 2. Redistributions in binary form must reproduce the above copyright
48 * notice, this list of conditions and the following disclaimer in the
49 * documentation and/or other materials provided with the distribution.
50 * 3. Neither the name of the University nor the names of its contributors
51 * may be used to endorse or promote products derived from this software
52 * without specific prior written permission.
53 *
54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
64 * SUCH DAMAGE.
65 */
66
67 #include <sys/param.h>
68 #include <sys/systm.h>
69 #include <sys/bus.h>
70 #include <sys/endian.h>
71 #include <sys/kernel.h>
72 #include <sys/lock.h>
73 #include <sys/module.h>
74 #include <sys/mutex.h>
75 #include <sys/resource.h>
76 #include <sys/rman.h>
77 #include <sys/socket.h>
78
79 #include <net/ethernet.h>
80 #include <net/if.h>
81 #include <net/if_media.h>
82
83 #include <machine/bus.h>
84 #include <machine/resource.h>
85
86 #include <isa/isavar.h>
87
88 #include <dev/le/lancereg.h>
89 #include <dev/le/lancevar.h>
90 #include <dev/le/am7990var.h>
91
92 #define LE_ISA_MEMSIZE (16*1024)
93 #define PCNET_RDP 0x10
94 #define PCNET_RAP 0x12
95
96 struct le_isa_softc {
97 struct am7990_softc sc_am7990; /* glue to MI code */
98
99 bus_size_t sc_rap; /* offsets to LANCE... */
100 bus_size_t sc_rdp; /* ...registers */
101
102 struct resource *sc_rres;
103
104 struct resource *sc_dres;
105
106 struct resource *sc_ires;
107 void *sc_ih;
108
109 bus_dma_tag_t sc_pdmat;
110 bus_dma_tag_t sc_dmat;
111 bus_dmamap_t sc_dmam;
112 };
113
114 static device_probe_t le_isa_probe;
115 static device_attach_t le_isa_attach;
116 static device_detach_t le_isa_detach;
117 static device_resume_t le_isa_resume;
118 static device_suspend_t le_isa_suspend;
119
120 static device_method_t le_isa_methods[] = {
121 /* Device interface */
122 DEVMETHOD(device_probe, le_isa_probe),
123 DEVMETHOD(device_attach, le_isa_attach),
124 DEVMETHOD(device_detach, le_isa_detach),
125 /* We can just use the suspend method here. */
126 DEVMETHOD(device_shutdown, le_isa_suspend),
127 DEVMETHOD(device_suspend, le_isa_suspend),
128 DEVMETHOD(device_resume, le_isa_resume),
129
130 { 0, 0 }
131 };
132
133 struct le_isa_param {
134 const char *name;
135 u_long iosize;
136 bus_size_t rap;
137 bus_size_t rdp;
138 bus_size_t macstart;
139 int macstride;
140 } static const le_isa_params[] = {
141 { "BICC Isolan", 24, 0xe, 0xc, 0, 2 },
142 { "Novell NE2100", 16, 0x12, 0x10, 0, 1 }
143 };
144
145 static struct isa_pnp_id le_isa_ids[] = {
146 { 0x0322690e, "Cabletron E2200 Single Chip" }, /* CSI2203 */
147 { 0x0110490a, "Boca LANCard Combo" }, /* BRI1001 */
148 { 0x0100a60a, "Melco Inc. LGY-IV" }, /* BUF0001 */
149 { 0xd880d041, "Novell NE2100" }, /* PNP80D8 */
150 { 0x0082d041, "Cabletron E2100 Series DNI" }, /* PNP8200 */
151 { 0x3182d041, "AMD AM1500T/AM2100" }, /* PNP8231 */
152 { 0x8c82d041, "AMD PCnet-ISA" }, /* PNP828C */
153 { 0x8d82d041, "AMD PCnet-32" }, /* PNP828D */
154 { 0xcefaedfe, "Racal InterLan EtherBlaster" }, /* _WMFACE */
155 { 0, NULL }
156 };
157
158 static void le_isa_wrcsr(struct lance_softc *, uint16_t, uint16_t);
159 static uint16_t le_isa_rdcsr(struct lance_softc *, uint16_t);
160 static bus_dmamap_callback_t le_isa_dma_callback;
161 static int le_isa_probe_legacy(device_t, const struct le_isa_param *);
162
163 static void
le_isa_wrcsr(struct lance_softc * sc,uint16_t port,uint16_t val)164 le_isa_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
165 {
166 struct le_isa_softc *lesc = (struct le_isa_softc *)sc;
167
168 bus_write_2(lesc->sc_rres, lesc->sc_rap, port);
169 bus_barrier(lesc->sc_rres, lesc->sc_rap, 2, BUS_SPACE_BARRIER_WRITE);
170 bus_write_2(lesc->sc_rres, lesc->sc_rdp, val);
171 }
172
173 static uint16_t
le_isa_rdcsr(struct lance_softc * sc,uint16_t port)174 le_isa_rdcsr(struct lance_softc *sc, uint16_t port)
175 {
176 struct le_isa_softc *lesc = (struct le_isa_softc *)sc;
177
178 bus_write_2(lesc->sc_rres, lesc->sc_rap, port);
179 bus_barrier(lesc->sc_rres, lesc->sc_rap, 2, BUS_SPACE_BARRIER_WRITE);
180 return (bus_read_2(lesc->sc_rres, lesc->sc_rdp));
181 }
182
183 static void
le_isa_dma_callback(void * xsc,bus_dma_segment_t * segs,int nsegs,int error)184 le_isa_dma_callback(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
185 {
186 struct lance_softc *sc = (struct lance_softc *)xsc;
187
188 if (error != 0)
189 return;
190 KASSERT(nsegs == 1, ("%s: bad DMA segment count", __func__));
191 sc->sc_addr = segs[0].ds_addr;
192 }
193
194 static int
le_isa_probe_legacy(device_t dev,const struct le_isa_param * leip)195 le_isa_probe_legacy(device_t dev, const struct le_isa_param *leip)
196 {
197 struct le_isa_softc *lesc;
198 struct lance_softc *sc;
199 int error, i;
200
201 lesc = device_get_softc(dev);
202 sc = &lesc->sc_am7990.lsc;
203
204 i = 0;
205 lesc->sc_rres = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT, &i,
206 leip->iosize, RF_ACTIVE);
207 if (lesc->sc_rres == NULL)
208 return (ENXIO);
209 lesc->sc_rap = leip->rap;
210 lesc->sc_rdp = leip->rdp;
211
212 /* Stop the chip and put it in a known state. */
213 le_isa_wrcsr(sc, LE_CSR0, LE_C0_STOP);
214 DELAY(100);
215 if (le_isa_rdcsr(sc, LE_CSR0) != LE_C0_STOP) {
216 error = ENXIO;
217 goto fail;
218 }
219 le_isa_wrcsr(sc, LE_CSR3, 0);
220 error = 0;
221
222 fail:
223 bus_release_resource(dev, SYS_RES_IOPORT,
224 rman_get_rid(lesc->sc_rres), lesc->sc_rres);
225 return (error);
226 }
227
228 static int
le_isa_probe(device_t dev)229 le_isa_probe(device_t dev)
230 {
231 int i;
232
233 switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) {
234 case 0:
235 return (BUS_PROBE_DEFAULT);
236 case ENOENT:
237 for (i = 0; i < nitems(le_isa_params); i++) {
238 if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) {
239 device_set_desc(dev, le_isa_params[i].name);
240 return (BUS_PROBE_DEFAULT);
241 }
242 }
243 /* FALLTHROUGH */
244 case ENXIO:
245 default:
246 return (ENXIO);
247 }
248 }
249
250 static int
le_isa_attach(device_t dev)251 le_isa_attach(device_t dev)
252 {
253 struct le_isa_softc *lesc;
254 struct lance_softc *sc;
255 bus_size_t macstart, rap, rdp;
256 int error, i, j, macstride;
257
258 lesc = device_get_softc(dev);
259 sc = &lesc->sc_am7990.lsc;
260
261 LE_LOCK_INIT(sc, device_get_nameunit(dev));
262
263 j = 0;
264 switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) {
265 case 0:
266 lesc->sc_rres = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
267 &j, RF_ACTIVE);
268 rap = PCNET_RAP;
269 rdp = PCNET_RDP;
270 macstart = 0;
271 macstride = 1;
272 break;
273 case ENOENT:
274 for (i = 0; i < nitems(le_isa_params); i++) {
275 if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) {
276 lesc->sc_rres = bus_alloc_resource_anywhere(dev,
277 SYS_RES_IOPORT, &j,
278 le_isa_params[i].iosize, RF_ACTIVE);
279 rap = le_isa_params[i].rap;
280 rdp = le_isa_params[i].rdp;
281 macstart = le_isa_params[i].macstart;
282 macstride = le_isa_params[i].macstride;
283 goto found;
284 }
285 }
286 /* FALLTHROUGH */
287 case ENXIO:
288 default:
289 device_printf(dev, "cannot determine chip\n");
290 error = ENXIO;
291 goto fail_mtx;
292 }
293
294 found:
295 if (lesc->sc_rres == NULL) {
296 device_printf(dev, "cannot allocate registers\n");
297 error = ENXIO;
298 goto fail_mtx;
299 }
300 lesc->sc_rap = rap;
301 lesc->sc_rdp = rdp;
302
303 i = 0;
304 if ((lesc->sc_dres = bus_alloc_resource_any(dev, SYS_RES_DRQ,
305 &i, RF_ACTIVE)) == NULL) {
306 device_printf(dev, "cannot allocate DMA channel\n");
307 error = ENXIO;
308 goto fail_rres;
309 }
310
311 i = 0;
312 if ((lesc->sc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ,
313 &i, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
314 device_printf(dev, "cannot allocate interrupt\n");
315 error = ENXIO;
316 goto fail_dres;
317 }
318
319 error = bus_dma_tag_create(
320 bus_get_dma_tag(dev), /* parent */
321 1, 0, /* alignment, boundary */
322 BUS_SPACE_MAXADDR_24BIT, /* lowaddr */
323 BUS_SPACE_MAXADDR, /* highaddr */
324 NULL, NULL, /* filter, filterarg */
325 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
326 0, /* nsegments */
327 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
328 0, /* flags */
329 NULL, NULL, /* lockfunc, lockarg */
330 &lesc->sc_pdmat);
331 if (error != 0) {
332 device_printf(dev, "cannot allocate parent DMA tag\n");
333 goto fail_ires;
334 }
335
336 sc->sc_memsize = LE_ISA_MEMSIZE;
337 /*
338 * For Am79C90, Am79C961 and Am79C961A the init block must be 2-byte
339 * aligned and the ring descriptors must be 8-byte aligned.
340 */
341 error = bus_dma_tag_create(
342 lesc->sc_pdmat, /* parent */
343 8, 0, /* alignment, boundary */
344 BUS_SPACE_MAXADDR_24BIT, /* lowaddr */
345 BUS_SPACE_MAXADDR, /* highaddr */
346 NULL, NULL, /* filter, filterarg */
347 sc->sc_memsize, /* maxsize */
348 1, /* nsegments */
349 sc->sc_memsize, /* maxsegsize */
350 0, /* flags */
351 NULL, NULL, /* lockfunc, lockarg */
352 &lesc->sc_dmat);
353 if (error != 0) {
354 device_printf(dev, "cannot allocate buffer DMA tag\n");
355 goto fail_pdtag;
356 }
357
358 error = bus_dmamem_alloc(lesc->sc_dmat, (void **)&sc->sc_mem,
359 BUS_DMA_WAITOK | BUS_DMA_COHERENT, &lesc->sc_dmam);
360 if (error != 0) {
361 device_printf(dev, "cannot allocate DMA buffer memory\n");
362 goto fail_dtag;
363 }
364
365 sc->sc_addr = 0;
366 error = bus_dmamap_load(lesc->sc_dmat, lesc->sc_dmam, sc->sc_mem,
367 sc->sc_memsize, le_isa_dma_callback, sc, 0);
368 if (error != 0 || sc->sc_addr == 0) {
369 device_printf(dev, "cannot load DMA buffer map\n");
370 goto fail_dmem;
371 }
372
373 isa_dmacascade(rman_get_start(lesc->sc_dres));
374
375 sc->sc_flags = 0;
376 sc->sc_conf3 = 0;
377
378 /*
379 * Extract the physical MAC address from the ROM.
380 */
381 for (i = 0; i < sizeof(sc->sc_enaddr); i++)
382 sc->sc_enaddr[i] = bus_read_1(lesc->sc_rres,
383 macstart + i * macstride);
384
385 sc->sc_copytodesc = lance_copytobuf_contig;
386 sc->sc_copyfromdesc = lance_copyfrombuf_contig;
387 sc->sc_copytobuf = lance_copytobuf_contig;
388 sc->sc_copyfrombuf = lance_copyfrombuf_contig;
389 sc->sc_zerobuf = lance_zerobuf_contig;
390
391 sc->sc_rdcsr = le_isa_rdcsr;
392 sc->sc_wrcsr = le_isa_wrcsr;
393 sc->sc_hwreset = NULL;
394 sc->sc_hwinit = NULL;
395 sc->sc_hwintr = NULL;
396 sc->sc_nocarrier = NULL;
397 sc->sc_mediachange = NULL;
398 sc->sc_mediastatus = NULL;
399 sc->sc_supmedia = NULL;
400
401 error = am7990_config(&lesc->sc_am7990, device_get_name(dev),
402 device_get_unit(dev));
403 if (error != 0) {
404 device_printf(dev, "cannot attach Am7990\n");
405 goto fail_dmap;
406 }
407
408 error = bus_setup_intr(dev, lesc->sc_ires, INTR_TYPE_NET | INTR_MPSAFE,
409 NULL, am7990_intr, sc, &lesc->sc_ih);
410 if (error != 0) {
411 device_printf(dev, "cannot set up interrupt\n");
412 goto fail_am7990;
413 }
414
415 return (0);
416
417 fail_am7990:
418 am7990_detach(&lesc->sc_am7990);
419 fail_dmap:
420 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam);
421 fail_dmem:
422 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam);
423 fail_dtag:
424 bus_dma_tag_destroy(lesc->sc_dmat);
425 fail_pdtag:
426 bus_dma_tag_destroy(lesc->sc_pdmat);
427 fail_ires:
428 bus_release_resource(dev, SYS_RES_IRQ,
429 rman_get_rid(lesc->sc_ires), lesc->sc_ires);
430 fail_dres:
431 bus_release_resource(dev, SYS_RES_DRQ,
432 rman_get_rid(lesc->sc_dres), lesc->sc_dres);
433 fail_rres:
434 bus_release_resource(dev, SYS_RES_IOPORT,
435 rman_get_rid(lesc->sc_rres), lesc->sc_rres);
436 fail_mtx:
437 LE_LOCK_DESTROY(sc);
438 return (error);
439 }
440
441 static int
le_isa_detach(device_t dev)442 le_isa_detach(device_t dev)
443 {
444 struct le_isa_softc *lesc;
445 struct lance_softc *sc;
446
447 lesc = device_get_softc(dev);
448 sc = &lesc->sc_am7990.lsc;
449
450 bus_teardown_intr(dev, lesc->sc_ires, lesc->sc_ih);
451 am7990_detach(&lesc->sc_am7990);
452 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam);
453 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam);
454 bus_dma_tag_destroy(lesc->sc_dmat);
455 bus_dma_tag_destroy(lesc->sc_pdmat);
456 bus_release_resource(dev, SYS_RES_IRQ,
457 rman_get_rid(lesc->sc_ires), lesc->sc_ires);
458 bus_release_resource(dev, SYS_RES_DRQ,
459 rman_get_rid(lesc->sc_dres), lesc->sc_dres);
460 bus_release_resource(dev, SYS_RES_IOPORT,
461 rman_get_rid(lesc->sc_rres), lesc->sc_rres);
462 LE_LOCK_DESTROY(sc);
463
464 return (0);
465 }
466
467 static int
le_isa_suspend(device_t dev)468 le_isa_suspend(device_t dev)
469 {
470 struct le_isa_softc *lesc;
471
472 lesc = device_get_softc(dev);
473
474 lance_suspend(&lesc->sc_am7990.lsc);
475
476 return (0);
477 }
478
479 static int
le_isa_resume(device_t dev)480 le_isa_resume(device_t dev)
481 {
482 struct le_isa_softc *lesc;
483
484 lesc = device_get_softc(dev);
485
486 lance_resume(&lesc->sc_am7990.lsc);
487
488 return (0);
489 }
490
491 DEFINE_CLASS_0(le, le_isa_driver, le_isa_methods, sizeof(struct le_isa_softc));
492 DRIVER_MODULE(le, isa, le_isa_driver, 0, 0);
493 MODULE_DEPEND(le, ether, 1, 1, 1);
494 ISA_PNP_INFO(le_isa_ids);
495