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 * @(#)if_le.c 8.2 (Berkeley) 11/16/93
67 */
68
69 #include <sys/cdefs.h>
70 #include <sys/param.h>
71 #include <sys/systm.h>
72 #include <sys/bus.h>
73 #include <sys/endian.h>
74 #include <sys/kernel.h>
75 #include <sys/lock.h>
76 #include <sys/module.h>
77 #include <sys/mutex.h>
78 #include <sys/resource.h>
79 #include <sys/rman.h>
80 #include <sys/socket.h>
81
82 #include <net/ethernet.h>
83 #include <net/if.h>
84 #include <net/if_media.h>
85
86 #include <machine/bus.h>
87 #include <machine/resource.h>
88
89 #include <isa/isavar.h>
90
91 #include <dev/le/lancereg.h>
92 #include <dev/le/lancevar.h>
93 #include <dev/le/am7990var.h>
94
95 #define LE_ISA_MEMSIZE (16*1024)
96 #define PCNET_RDP 0x10
97 #define PCNET_RAP 0x12
98
99 struct le_isa_softc {
100 struct am7990_softc sc_am7990; /* glue to MI code */
101
102 bus_size_t sc_rap; /* offsets to LANCE... */
103 bus_size_t sc_rdp; /* ...registers */
104
105 struct resource *sc_rres;
106
107 struct resource *sc_dres;
108
109 struct resource *sc_ires;
110 void *sc_ih;
111
112 bus_dma_tag_t sc_pdmat;
113 bus_dma_tag_t sc_dmat;
114 bus_dmamap_t sc_dmam;
115 };
116
117 static device_probe_t le_isa_probe;
118 static device_attach_t le_isa_attach;
119 static device_detach_t le_isa_detach;
120 static device_resume_t le_isa_resume;
121 static device_suspend_t le_isa_suspend;
122
123 static device_method_t le_isa_methods[] = {
124 /* Device interface */
125 DEVMETHOD(device_probe, le_isa_probe),
126 DEVMETHOD(device_attach, le_isa_attach),
127 DEVMETHOD(device_detach, le_isa_detach),
128 /* We can just use the suspend method here. */
129 DEVMETHOD(device_shutdown, le_isa_suspend),
130 DEVMETHOD(device_suspend, le_isa_suspend),
131 DEVMETHOD(device_resume, le_isa_resume),
132
133 { 0, 0 }
134 };
135
136 struct le_isa_param {
137 const char *name;
138 u_long iosize;
139 bus_size_t rap;
140 bus_size_t rdp;
141 bus_size_t macstart;
142 int macstride;
143 } static const le_isa_params[] = {
144 { "BICC Isolan", 24, 0xe, 0xc, 0, 2 },
145 { "Novell NE2100", 16, 0x12, 0x10, 0, 1 }
146 };
147
148 static struct isa_pnp_id le_isa_ids[] = {
149 { 0x0322690e, "Cabletron E2200 Single Chip" }, /* CSI2203 */
150 { 0x0110490a, "Boca LANCard Combo" }, /* BRI1001 */
151 { 0x0100a60a, "Melco Inc. LGY-IV" }, /* BUF0001 */
152 { 0xd880d041, "Novell NE2100" }, /* PNP80D8 */
153 { 0x0082d041, "Cabletron E2100 Series DNI" }, /* PNP8200 */
154 { 0x3182d041, "AMD AM1500T/AM2100" }, /* PNP8231 */
155 { 0x8c82d041, "AMD PCnet-ISA" }, /* PNP828C */
156 { 0x8d82d041, "AMD PCnet-32" }, /* PNP828D */
157 { 0xcefaedfe, "Racal InterLan EtherBlaster" }, /* _WMFACE */
158 { 0, NULL }
159 };
160
161 static void le_isa_wrcsr(struct lance_softc *, uint16_t, uint16_t);
162 static uint16_t le_isa_rdcsr(struct lance_softc *, uint16_t);
163 static bus_dmamap_callback_t le_isa_dma_callback;
164 static int le_isa_probe_legacy(device_t, const struct le_isa_param *);
165
166 static void
le_isa_wrcsr(struct lance_softc * sc,uint16_t port,uint16_t val)167 le_isa_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
168 {
169 struct le_isa_softc *lesc = (struct le_isa_softc *)sc;
170
171 bus_write_2(lesc->sc_rres, lesc->sc_rap, port);
172 bus_barrier(lesc->sc_rres, lesc->sc_rap, 2, BUS_SPACE_BARRIER_WRITE);
173 bus_write_2(lesc->sc_rres, lesc->sc_rdp, val);
174 }
175
176 static uint16_t
le_isa_rdcsr(struct lance_softc * sc,uint16_t port)177 le_isa_rdcsr(struct lance_softc *sc, uint16_t port)
178 {
179 struct le_isa_softc *lesc = (struct le_isa_softc *)sc;
180
181 bus_write_2(lesc->sc_rres, lesc->sc_rap, port);
182 bus_barrier(lesc->sc_rres, lesc->sc_rap, 2, BUS_SPACE_BARRIER_WRITE);
183 return (bus_read_2(lesc->sc_rres, lesc->sc_rdp));
184 }
185
186 static void
le_isa_dma_callback(void * xsc,bus_dma_segment_t * segs,int nsegs,int error)187 le_isa_dma_callback(void *xsc, bus_dma_segment_t *segs, int nsegs, int error)
188 {
189 struct lance_softc *sc = (struct lance_softc *)xsc;
190
191 if (error != 0)
192 return;
193 KASSERT(nsegs == 1, ("%s: bad DMA segment count", __func__));
194 sc->sc_addr = segs[0].ds_addr;
195 }
196
197 static int
le_isa_probe_legacy(device_t dev,const struct le_isa_param * leip)198 le_isa_probe_legacy(device_t dev, const struct le_isa_param *leip)
199 {
200 struct le_isa_softc *lesc;
201 struct lance_softc *sc;
202 int error, i;
203
204 lesc = device_get_softc(dev);
205 sc = &lesc->sc_am7990.lsc;
206
207 i = 0;
208 lesc->sc_rres = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT, &i,
209 leip->iosize, RF_ACTIVE);
210 if (lesc->sc_rres == NULL)
211 return (ENXIO);
212 lesc->sc_rap = leip->rap;
213 lesc->sc_rdp = leip->rdp;
214
215 /* Stop the chip and put it in a known state. */
216 le_isa_wrcsr(sc, LE_CSR0, LE_C0_STOP);
217 DELAY(100);
218 if (le_isa_rdcsr(sc, LE_CSR0) != LE_C0_STOP) {
219 error = ENXIO;
220 goto fail;
221 }
222 le_isa_wrcsr(sc, LE_CSR3, 0);
223 error = 0;
224
225 fail:
226 bus_release_resource(dev, SYS_RES_IOPORT,
227 rman_get_rid(lesc->sc_rres), lesc->sc_rres);
228 return (error);
229 }
230
231 static int
le_isa_probe(device_t dev)232 le_isa_probe(device_t dev)
233 {
234 int i;
235
236 switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) {
237 case 0:
238 return (BUS_PROBE_DEFAULT);
239 case ENOENT:
240 for (i = 0; i < nitems(le_isa_params); i++) {
241 if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) {
242 device_set_desc(dev, le_isa_params[i].name);
243 return (BUS_PROBE_DEFAULT);
244 }
245 }
246 /* FALLTHROUGH */
247 case ENXIO:
248 default:
249 return (ENXIO);
250 }
251 }
252
253 static int
le_isa_attach(device_t dev)254 le_isa_attach(device_t dev)
255 {
256 struct le_isa_softc *lesc;
257 struct lance_softc *sc;
258 bus_size_t macstart, rap, rdp;
259 int error, i, j, macstride;
260
261 lesc = device_get_softc(dev);
262 sc = &lesc->sc_am7990.lsc;
263
264 LE_LOCK_INIT(sc, device_get_nameunit(dev));
265
266 j = 0;
267 switch (ISA_PNP_PROBE(device_get_parent(dev), dev, le_isa_ids)) {
268 case 0:
269 lesc->sc_rres = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
270 &j, RF_ACTIVE);
271 rap = PCNET_RAP;
272 rdp = PCNET_RDP;
273 macstart = 0;
274 macstride = 1;
275 break;
276 case ENOENT:
277 for (i = 0; i < nitems(le_isa_params); i++) {
278 if (le_isa_probe_legacy(dev, &le_isa_params[i]) == 0) {
279 lesc->sc_rres = bus_alloc_resource_anywhere(dev,
280 SYS_RES_IOPORT, &j,
281 le_isa_params[i].iosize, RF_ACTIVE);
282 rap = le_isa_params[i].rap;
283 rdp = le_isa_params[i].rdp;
284 macstart = le_isa_params[i].macstart;
285 macstride = le_isa_params[i].macstride;
286 goto found;
287 }
288 }
289 /* FALLTHROUGH */
290 case ENXIO:
291 default:
292 device_printf(dev, "cannot determine chip\n");
293 error = ENXIO;
294 goto fail_mtx;
295 }
296
297 found:
298 if (lesc->sc_rres == NULL) {
299 device_printf(dev, "cannot allocate registers\n");
300 error = ENXIO;
301 goto fail_mtx;
302 }
303 lesc->sc_rap = rap;
304 lesc->sc_rdp = rdp;
305
306 i = 0;
307 if ((lesc->sc_dres = bus_alloc_resource_any(dev, SYS_RES_DRQ,
308 &i, RF_ACTIVE)) == NULL) {
309 device_printf(dev, "cannot allocate DMA channel\n");
310 error = ENXIO;
311 goto fail_rres;
312 }
313
314 i = 0;
315 if ((lesc->sc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ,
316 &i, RF_SHAREABLE | RF_ACTIVE)) == NULL) {
317 device_printf(dev, "cannot allocate interrupt\n");
318 error = ENXIO;
319 goto fail_dres;
320 }
321
322 error = bus_dma_tag_create(
323 bus_get_dma_tag(dev), /* parent */
324 1, 0, /* alignment, boundary */
325 BUS_SPACE_MAXADDR_24BIT, /* lowaddr */
326 BUS_SPACE_MAXADDR, /* highaddr */
327 NULL, NULL, /* filter, filterarg */
328 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */
329 0, /* nsegments */
330 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
331 0, /* flags */
332 NULL, NULL, /* lockfunc, lockarg */
333 &lesc->sc_pdmat);
334 if (error != 0) {
335 device_printf(dev, "cannot allocate parent DMA tag\n");
336 goto fail_ires;
337 }
338
339 sc->sc_memsize = LE_ISA_MEMSIZE;
340 /*
341 * For Am79C90, Am79C961 and Am79C961A the init block must be 2-byte
342 * aligned and the ring descriptors must be 8-byte aligned.
343 */
344 error = bus_dma_tag_create(
345 lesc->sc_pdmat, /* parent */
346 8, 0, /* alignment, boundary */
347 BUS_SPACE_MAXADDR_24BIT, /* lowaddr */
348 BUS_SPACE_MAXADDR, /* highaddr */
349 NULL, NULL, /* filter, filterarg */
350 sc->sc_memsize, /* maxsize */
351 1, /* nsegments */
352 sc->sc_memsize, /* maxsegsize */
353 0, /* flags */
354 NULL, NULL, /* lockfunc, lockarg */
355 &lesc->sc_dmat);
356 if (error != 0) {
357 device_printf(dev, "cannot allocate buffer DMA tag\n");
358 goto fail_pdtag;
359 }
360
361 error = bus_dmamem_alloc(lesc->sc_dmat, (void **)&sc->sc_mem,
362 BUS_DMA_WAITOK | BUS_DMA_COHERENT, &lesc->sc_dmam);
363 if (error != 0) {
364 device_printf(dev, "cannot allocate DMA buffer memory\n");
365 goto fail_dtag;
366 }
367
368 sc->sc_addr = 0;
369 error = bus_dmamap_load(lesc->sc_dmat, lesc->sc_dmam, sc->sc_mem,
370 sc->sc_memsize, le_isa_dma_callback, sc, 0);
371 if (error != 0 || sc->sc_addr == 0) {
372 device_printf(dev, "cannot load DMA buffer map\n");
373 goto fail_dmem;
374 }
375
376 isa_dmacascade(rman_get_start(lesc->sc_dres));
377
378 sc->sc_flags = 0;
379 sc->sc_conf3 = 0;
380
381 /*
382 * Extract the physical MAC address from the ROM.
383 */
384 for (i = 0; i < sizeof(sc->sc_enaddr); i++)
385 sc->sc_enaddr[i] = bus_read_1(lesc->sc_rres,
386 macstart + i * macstride);
387
388 sc->sc_copytodesc = lance_copytobuf_contig;
389 sc->sc_copyfromdesc = lance_copyfrombuf_contig;
390 sc->sc_copytobuf = lance_copytobuf_contig;
391 sc->sc_copyfrombuf = lance_copyfrombuf_contig;
392 sc->sc_zerobuf = lance_zerobuf_contig;
393
394 sc->sc_rdcsr = le_isa_rdcsr;
395 sc->sc_wrcsr = le_isa_wrcsr;
396 sc->sc_hwreset = NULL;
397 sc->sc_hwinit = NULL;
398 sc->sc_hwintr = NULL;
399 sc->sc_nocarrier = NULL;
400 sc->sc_mediachange = NULL;
401 sc->sc_mediastatus = NULL;
402 sc->sc_supmedia = NULL;
403
404 error = am7990_config(&lesc->sc_am7990, device_get_name(dev),
405 device_get_unit(dev));
406 if (error != 0) {
407 device_printf(dev, "cannot attach Am7990\n");
408 goto fail_dmap;
409 }
410
411 error = bus_setup_intr(dev, lesc->sc_ires, INTR_TYPE_NET | INTR_MPSAFE,
412 NULL, am7990_intr, sc, &lesc->sc_ih);
413 if (error != 0) {
414 device_printf(dev, "cannot set up interrupt\n");
415 goto fail_am7990;
416 }
417
418 return (0);
419
420 fail_am7990:
421 am7990_detach(&lesc->sc_am7990);
422 fail_dmap:
423 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam);
424 fail_dmem:
425 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam);
426 fail_dtag:
427 bus_dma_tag_destroy(lesc->sc_dmat);
428 fail_pdtag:
429 bus_dma_tag_destroy(lesc->sc_pdmat);
430 fail_ires:
431 bus_release_resource(dev, SYS_RES_IRQ,
432 rman_get_rid(lesc->sc_ires), lesc->sc_ires);
433 fail_dres:
434 bus_release_resource(dev, SYS_RES_DRQ,
435 rman_get_rid(lesc->sc_dres), lesc->sc_dres);
436 fail_rres:
437 bus_release_resource(dev, SYS_RES_IOPORT,
438 rman_get_rid(lesc->sc_rres), lesc->sc_rres);
439 fail_mtx:
440 LE_LOCK_DESTROY(sc);
441 return (error);
442 }
443
444 static int
le_isa_detach(device_t dev)445 le_isa_detach(device_t dev)
446 {
447 struct le_isa_softc *lesc;
448 struct lance_softc *sc;
449
450 lesc = device_get_softc(dev);
451 sc = &lesc->sc_am7990.lsc;
452
453 bus_teardown_intr(dev, lesc->sc_ires, lesc->sc_ih);
454 am7990_detach(&lesc->sc_am7990);
455 bus_dmamap_unload(lesc->sc_dmat, lesc->sc_dmam);
456 bus_dmamem_free(lesc->sc_dmat, sc->sc_mem, lesc->sc_dmam);
457 bus_dma_tag_destroy(lesc->sc_dmat);
458 bus_dma_tag_destroy(lesc->sc_pdmat);
459 bus_release_resource(dev, SYS_RES_IRQ,
460 rman_get_rid(lesc->sc_ires), lesc->sc_ires);
461 bus_release_resource(dev, SYS_RES_DRQ,
462 rman_get_rid(lesc->sc_dres), lesc->sc_dres);
463 bus_release_resource(dev, SYS_RES_IOPORT,
464 rman_get_rid(lesc->sc_rres), lesc->sc_rres);
465 LE_LOCK_DESTROY(sc);
466
467 return (0);
468 }
469
470 static int
le_isa_suspend(device_t dev)471 le_isa_suspend(device_t dev)
472 {
473 struct le_isa_softc *lesc;
474
475 lesc = device_get_softc(dev);
476
477 lance_suspend(&lesc->sc_am7990.lsc);
478
479 return (0);
480 }
481
482 static int
le_isa_resume(device_t dev)483 le_isa_resume(device_t dev)
484 {
485 struct le_isa_softc *lesc;
486
487 lesc = device_get_softc(dev);
488
489 lance_resume(&lesc->sc_am7990.lsc);
490
491 return (0);
492 }
493
494 DEFINE_CLASS_0(le, le_isa_driver, le_isa_methods, sizeof(struct le_isa_softc));
495 DRIVER_MODULE(le, isa, le_isa_driver, 0, 0);
496 MODULE_DEPEND(le, ether, 1, 1, 1);
497 ISA_PNP_INFO(le_isa_ids);
498