remove __P() from this directory
[dragonfly.git] / sys / dev / misc / puc / puc.c
CommitLineData
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1/*
2 * $NetBSD: puc.c,v 1.7 2000/07/29 17:43:38 jlam Exp $
3 * $FreeBSD: src/sys/dev/puc/puc.c,v 1.3.2.5 2003/04/04 08:42:17 sobomax Exp $
38e94a25 4 * $DragonFly: src/sys/dev/misc/puc/puc.c,v 1.4 2003/08/27 10:35:18 rob Exp $
1de703da 5 */
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6
7/*-
8 * Copyright (c) 2002 JF Hay. All rights reserved.
9 * Copyright (c) 2000 M. Warner Losh. All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice unmodified, this list of conditions, and the following
16 * disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 */
32
33/*
34 * Copyright (c) 1996, 1998, 1999
35 * Christopher G. Demetriou. All rights reserved.
36 *
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
39 * are met:
40 * 1. Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * 2. Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in the
44 * documentation and/or other materials provided with the distribution.
45 * 3. All advertising materials mentioning features or use of this software
46 * must display the following acknowledgement:
47 * This product includes software developed by Christopher G. Demetriou
48 * for the NetBSD Project.
49 * 4. The name of the author may not be used to endorse or promote products
50 * derived from this software without specific prior written permission
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
53 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
54 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
55 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
56 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
57 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
61 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 */
63
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64/*
65 * PCI "universal" communication card device driver, glues com, lpt,
66 * and similar ports to PCI via bridge chip often much larger than
67 * the devices being glued.
68 *
69 * Author: Christopher G. Demetriou, May 14, 1998 (derived from NetBSD
70 * sys/dev/pci/pciide.c, revision 1.6).
71 *
72 * These devices could be (and some times are) described as
73 * communications/{serial,parallel}, etc. devices with known
74 * programming interfaces, but those programming interfaces (in
75 * particular the BAR assignments for devices, etc.) in fact are not
76 * particularly well defined.
77 *
78 * After I/we have seen more of these devices, it may be possible
79 * to generalize some of these bits. In particular, devices which
80 * describe themselves as communications/serial/16[45]50, and
81 * communications/parallel/??? might be attached via direct
82 * 'com' and 'lpt' attachments to pci.
83 */
84
85#include <sys/param.h>
86#include <sys/systm.h>
87#include <sys/kernel.h>
88#include <sys/bus.h>
89#include <sys/conf.h>
90#include <sys/malloc.h>
91
92#include <machine/bus.h>
93#include <machine/resource.h>
94#include <sys/rman.h>
95
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96#include <bus/pci/pcireg.h>
97#include <bus/pci/pcivar.h>
98#include "pucvar.h"
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99
100#include <opt_puc.h>
101
102struct puc_softc {
103 const struct puc_device_description *sc_desc;
104
105 /* card-global dynamic data */
106 int barmuxed;
107 int irqrid;
108 struct resource *irqres;
109 void *intr_cookie;
110 int ilr_enabled;
111 bus_space_tag_t ilr_st;
112 bus_space_handle_t ilr_sh;
113
114 struct {
115 struct resource *res;
116 } sc_bar_mappings[PUC_MAX_BAR];
117
118 /* per-port dynamic data */
119 struct {
120 struct device *dev;
121 /* filled in by bus_setup_intr() */
38e94a25 122 void (*ihand) (void *);
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123 void *ihandarg;
124 } sc_ports[PUC_MAX_PORTS];
125};
126
127struct puc_device {
128 struct resource_list resources;
129 u_int serialfreq;
130};
131
132static int puc_pci_probe(device_t dev);
133static int puc_pci_attach(device_t dev);
134static void puc_intr(void *arg);
135
136static struct resource *puc_alloc_resource(device_t, device_t, int, int *,
137 u_long, u_long, u_long, u_int);
138static int puc_release_resource(device_t, device_t, int, int,
139 struct resource *);
140static int puc_get_resource(device_t, device_t, int, int, u_long *, u_long *);
141static int puc_setup_intr(device_t, device_t, struct resource *, int,
142 void (*)(void *), void *, void **);
143static int puc_teardown_intr(device_t, device_t, struct resource *,
144 void *);
145static int puc_read_ivar(device_t, device_t, int, uintptr_t *);
146
147static const struct puc_device_description *puc_find_description(uint32_t,
148 uint32_t, uint32_t, uint32_t);
149static void puc_config_superio(device_t);
150static void puc_config_win877(struct resource *);
151static int puc_find_free_unit(char *);
152#ifdef PUC_DEBUG
153static void puc_print_win877(bus_space_tag_t, bus_space_handle_t, u_int,
154 u_int);
155static void puc_print_resource_list(struct resource_list *);
156#endif
157
158static int
159puc_pci_probe(device_t dev)
160{
161 uint32_t v1, v2, d1, d2;
162 const struct puc_device_description *desc;
163
164 if ((pci_read_config(dev, PCIR_HEADERTYPE, 1) & 0x7f) != 0)
165 return (ENXIO);
166
167 v1 = pci_read_config(dev, PCIR_VENDOR, 2);
168 d1 = pci_read_config(dev, PCIR_DEVICE, 2);
169 v2 = pci_read_config(dev, PCIR_SUBVEND_0, 2);
170 d2 = pci_read_config(dev, PCIR_SUBDEV_0, 2);
171
172 desc = puc_find_description(v1, d1, v2, d2);
173 if (desc == NULL)
174 return (ENXIO);
175 device_set_desc(dev, desc->name);
176 return (0);
177}
178
179static int
180puc_probe_ilr(struct puc_softc *sc, struct resource *res)
181{
182 u_char t1, t2;
183 int i;
184
185 switch (sc->sc_desc->ilr_type) {
186 case PUC_ILR_TYPE_DIGI:
187 sc->ilr_st = rman_get_bustag(res);
188 sc->ilr_sh = rman_get_bushandle(res);
189 for (i = 0; i < 2; i++) {
190 t1 = bus_space_read_1(sc->ilr_st, sc->ilr_sh,
191 sc->sc_desc->ilr_offset[i]);
192 t1 = ~t1;
193 bus_space_write_1(sc->ilr_st, sc->ilr_sh,
194 sc->sc_desc->ilr_offset[i], t1);
195 t2 = bus_space_read_1(sc->ilr_st, sc->ilr_sh,
196 sc->sc_desc->ilr_offset[i]);
197 if (t2 == t1)
198 return (0);
199 }
200 return (1);
201
202 default:
203 break;
204 }
205 return (0);
206}
207
208static int
209puc_pci_attach(device_t dev)
210{
211 char *typestr;
212 int bidx, childunit, i, irq_setup, rid;
213 uint32_t v1, v2, d1, d2;
214 struct puc_softc *sc;
215 struct puc_device *pdev;
216 struct resource *res;
217 struct resource_list_entry *rle;
218
219 sc = (struct puc_softc *)device_get_softc(dev);
220 bzero(sc, sizeof(*sc));
221 v1 = pci_read_config(dev, PCIR_VENDOR, 2);
222 d1 = pci_read_config(dev, PCIR_DEVICE, 2);
223 v2 = pci_read_config(dev, PCIR_SUBVEND_0, 2);
224 d2 = pci_read_config(dev, PCIR_SUBDEV_0, 2);
225 sc->sc_desc = puc_find_description(v1, d1, v2, d2);
226 if (sc->sc_desc == NULL)
227 return (ENXIO);
228
229#ifdef PUC_DEBUG
230 bootverbose = 1;
231
232 printf("puc: name: %s\n", sc->sc_desc->name);
233#endif
234 rid = 0;
235 res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
236 RF_ACTIVE | RF_SHAREABLE);
237 if (!res)
238 return (ENXIO);
239
240 sc->irqres = res;
241 sc->irqrid = rid;
242#ifdef PUC_FASTINTR
243 irq_setup = BUS_SETUP_INTR(device_get_parent(dev), dev, res,
244 INTR_TYPE_TTY | INTR_TYPE_FAST, puc_intr, sc, &sc->intr_cookie);
245#else
246 irq_setup = ENXIO;
247#endif
248 if (irq_setup != 0)
249 irq_setup = BUS_SETUP_INTR(device_get_parent(dev), dev, res,
250 INTR_TYPE_TTY, puc_intr, sc, &sc->intr_cookie);
251 if (irq_setup != 0)
252 return (ENXIO);
253
254 rid = 0;
255 for (i = 0; PUC_PORT_VALID(sc->sc_desc, i); i++) {
256 if (rid == sc->sc_desc->ports[i].bar)
257 sc->barmuxed = 1;
258 rid = sc->sc_desc->ports[i].bar;
259 bidx = PUC_PORT_BAR_INDEX(rid);
260
261 if (sc->sc_bar_mappings[bidx].res != NULL)
262 continue;
263 res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
264 0ul, ~0ul, 1, RF_ACTIVE);
265 if (res == NULL) {
266 printf("could not get resource\n");
267 continue;
268 }
269 sc->sc_bar_mappings[bidx].res = res;
270
271 if (sc->sc_desc->ilr_type != PUC_ILR_TYPE_NONE) {
272 sc->ilr_enabled = puc_probe_ilr(sc, res);
273 if (sc->ilr_enabled)
274 device_printf(dev, "ILR enabled\n");
275 else
276 device_printf(dev, "ILR disabled\n");
277 }
278#ifdef PUC_DEBUG
279 printf("port bst %x, start %x, end %x\n",
280 (u_int)rman_get_bustag(res), (u_int)rman_get_start(res),
281 (u_int)rman_get_end(res));
282#endif
283 }
284
285 puc_config_superio(dev);
286
287 for (i = 0; PUC_PORT_VALID(sc->sc_desc, i); i++) {
288 rid = sc->sc_desc->ports[i].bar;
289 bidx = PUC_PORT_BAR_INDEX(rid);
290 if (sc->sc_bar_mappings[bidx].res == NULL)
291 continue;
292
293 switch (sc->sc_desc->ports[i].type) {
294 case PUC_PORT_TYPE_COM:
295 typestr = "sio";
296 break;
297 default:
298 continue;
299 }
300 pdev = malloc(sizeof(struct puc_device), M_DEVBUF,
301 M_NOWAIT | M_ZERO);
302 if (!pdev)
303 continue;
304 resource_list_init(&pdev->resources);
305
306 /* First fake up an IRQ resource. */
307 resource_list_add(&pdev->resources, SYS_RES_IRQ, 0,
308 rman_get_start(sc->irqres), rman_get_end(sc->irqres),
309 rman_get_end(sc->irqres) - rman_get_start(sc->irqres) + 1);
310 rle = resource_list_find(&pdev->resources, SYS_RES_IRQ, 0);
311 rle->res = sc->irqres;
312
313 /* Now fake an IOPORT resource */
314 res = sc->sc_bar_mappings[bidx].res;
315 resource_list_add(&pdev->resources, SYS_RES_IOPORT, 0,
316 rman_get_start(res) + sc->sc_desc->ports[i].offset,
317 rman_get_end(res) + sc->sc_desc->ports[i].offset + 8 - 1,
318 8);
319 rle = resource_list_find(&pdev->resources, SYS_RES_IOPORT, 0);
320
321 if (sc->barmuxed == 0) {
322 rle->res = sc->sc_bar_mappings[bidx].res;
323 } else {
324 rle->res = malloc(sizeof(struct resource), M_DEVBUF,
325 M_WAITOK | M_ZERO);
326 if (rle->res == NULL) {
327 free(pdev, M_DEVBUF);
328 return (ENOMEM);
329 }
330
331 rle->res->r_start = rman_get_start(res) +
332 sc->sc_desc->ports[i].offset;
333 rle->res->r_end = rle->res->r_start + 8 - 1;
334 rle->res->r_bustag = rman_get_bustag(res);
335 bus_space_subregion(rle->res->r_bustag,
336 rman_get_bushandle(res),
337 sc->sc_desc->ports[i].offset, 8,
338 &rle->res->r_bushandle);
339 }
340
341 pdev->serialfreq = sc->sc_desc->ports[i].serialfreq;
342
343 childunit = puc_find_free_unit(typestr);
344 sc->sc_ports[i].dev = device_add_child(dev, typestr, childunit);
345 if (sc->sc_ports[i].dev == NULL) {
346 if (sc->barmuxed) {
347 bus_space_unmap(rman_get_bustag(rle->res),
348 rman_get_bushandle(rle->res),
349 8);
350 free(rle->res, M_DEVBUF);
351 free(pdev, M_DEVBUF);
352 }
353 continue;
354 }
355 device_set_ivars(sc->sc_ports[i].dev, pdev);
356 device_set_desc(sc->sc_ports[i].dev, sc->sc_desc->name);
357 if (!bootverbose)
358 device_quiet(sc->sc_ports[i].dev);
359#ifdef PUC_DEBUG
360 printf("puc: type %d, bar %x, offset %x\n",
361 sc->sc_desc->ports[i].type,
362 sc->sc_desc->ports[i].bar,
363 sc->sc_desc->ports[i].offset);
364 print_resource_list(&pdev->resources);
365#endif
366 device_set_flags(sc->sc_ports[i].dev,
367 sc->sc_desc->ports[i].flags);
368 if (device_probe_and_attach(sc->sc_ports[i].dev) != 0) {
369 if (sc->barmuxed) {
370 bus_space_unmap(rman_get_bustag(rle->res),
371 rman_get_bushandle(rle->res),
372 8);
373 free(rle->res, M_DEVBUF);
374 free(pdev, M_DEVBUF);
375 }
376 }
377 }
378
379#ifdef PUC_DEBUG
380 bootverbose = 0;
381#endif
382 return (0);
383}
384
385static u_int32_t
386puc_ilr_read(struct puc_softc *sc)
387{
388 u_int32_t mask;
389 int i;
390
391 mask = 0;
392 switch (sc->sc_desc->ilr_type) {
393 case PUC_ILR_TYPE_DIGI:
394 for (i = 1; i >= 0; i--) {
395 mask = (mask << 8) | (bus_space_read_1(sc->ilr_st,
396 sc->ilr_sh, sc->sc_desc->ilr_offset[i]) & 0xff);
397 }
398 break;
399
400 default:
401 mask = 0xffffffff;
402 break;
403 }
404 return (mask);
405}
406
407/*
408 * This is an interrupt handler. For boards that can't tell us which
409 * device generated the interrupt it just calls all the registered
410 * handlers sequencially, but for boards that can tell us which
411 * device(s) generated the interrupt it calls only handlers for devices
412 * that actually generated the interrupt.
413 */
414static void
415puc_intr(void *arg)
416{
417 int i;
418 u_int32_t ilr_mask;
419 struct puc_softc *sc;
420
421 sc = (struct puc_softc *)arg;
422 ilr_mask = sc->ilr_enabled ? puc_ilr_read(sc) : 0xffffffff;
423 for (i = 0; i < PUC_MAX_PORTS; i++)
424 if (sc->sc_ports[i].ihand != NULL &&
425 ((ilr_mask >> i) & 0x00000001))
426 (sc->sc_ports[i].ihand)(sc->sc_ports[i].ihandarg);
427}
428
429static const struct puc_device_description *
430puc_find_description(uint32_t vend, uint32_t prod, uint32_t svend,
431 uint32_t sprod)
432{
433 int i;
434
435#define checkreg(val, index) \
436 (((val) & puc_devices[i].rmask[(index)]) == puc_devices[i].rval[(index)])
437
438 for (i = 0; puc_devices[i].name != NULL; i++) {
439 if (checkreg(vend, PUC_REG_VEND) &&
440 checkreg(prod, PUC_REG_PROD) &&
441 checkreg(svend, PUC_REG_SVEND) &&
442 checkreg(sprod, PUC_REG_SPROD))
443 return (&puc_devices[i]);
444 }
445
446#undef checkreg
447
448 return (NULL);
449}
450
451/*
452 * It might be possible to make these more generic if we can detect patterns.
453 * For instance maybe if the size of a bar is 0x400 (the old isa space) it
454 * might contain one or more superio chips.
455 */
456static void
457puc_config_superio(device_t dev)
458{
459 struct puc_softc *sc = (struct puc_softc *)device_get_softc(dev);
460
461 if (sc->sc_desc->rval[PUC_REG_VEND] == 0x1592 &&
462 sc->sc_desc->rval[PUC_REG_PROD] == 0x0781)
463 puc_config_win877(sc->sc_bar_mappings[0].res);
464}
465
466#define rdspio(indx) (bus_space_write_1(bst, bsh, efir, indx), \
467 bus_space_read_1(bst, bsh, efdr))
468#define wrspio(indx,data) (bus_space_write_1(bst, bsh, efir, indx), \
469 bus_space_write_1(bst, bsh, efdr, data))
470
471#ifdef PUC_DEBUG
472static void
473puc_print_win877(bus_space_tag_t bst, bus_space_handle_t bsh, u_int efir,
474 u_int efdr)
475{
476 u_char cr00, cr01, cr04, cr09, cr0d, cr14, cr15, cr16, cr17;
477 u_char cr18, cr19, cr24, cr25, cr28, cr2c, cr31, cr32;
478
479 cr00 = rdspio(0x00);
480 cr01 = rdspio(0x01);
481 cr04 = rdspio(0x04);
482 cr09 = rdspio(0x09);
483 cr0d = rdspio(0x0d);
484 cr14 = rdspio(0x14);
485 cr15 = rdspio(0x15);
486 cr16 = rdspio(0x16);
487 cr17 = rdspio(0x17);
488 cr18 = rdspio(0x18);
489 cr19 = rdspio(0x19);
490 cr24 = rdspio(0x24);
491 cr25 = rdspio(0x25);
492 cr28 = rdspio(0x28);
493 cr2c = rdspio(0x2c);
494 cr31 = rdspio(0x31);
495 cr32 = rdspio(0x32);
496 printf("877T: cr00 %x, cr01 %x, cr04 %x, cr09 %x, cr0d %x, cr14 %x, "
497 "cr15 %x, cr16 %x, cr17 %x, cr18 %x, cr19 %x, cr24 %x, cr25 %x, "
498 "cr28 %x, cr2c %x, cr31 %x, cr32 %x\n", cr00, cr01, cr04, cr09,
499 cr0d, cr14, cr15, cr16, cr17,
500 cr18, cr19, cr24, cr25, cr28, cr2c, cr31, cr32);
501}
502#endif
503
504static void
505puc_config_win877(struct resource *res)
506{
507 u_char val;
508 u_int efir, efdr;
509 bus_space_tag_t bst;
510 bus_space_handle_t bsh;
511
512 bst = rman_get_bustag(res);
513 bsh = rman_get_bushandle(res);
514
515 /* configure the first W83877TF */
516 bus_space_write_1(bst, bsh, 0x250, 0x89);
517 efir = 0x251;
518 efdr = 0x252;
519 val = rdspio(0x09) & 0x0f;
520 if (val != 0x0c) {
521 printf("conf_win877: Oops not a W83877TF\n");
522 return;
523 }
524
525#ifdef PUC_DEBUG
526 printf("before: ");
527 puc_print_win877(bst, bsh, efir, efdr);
528#endif
529
530 val = rdspio(0x16);
531 val |= 0x04;
532 wrspio(0x16, val);
533 val &= ~0x04;
534 wrspio(0x16, val);
535
536 wrspio(0x24, 0x2e8 >> 2);
537 wrspio(0x25, 0x2f8 >> 2);
538 wrspio(0x17, 0x03);
539 wrspio(0x28, 0x43);
540
541#ifdef PUC_DEBUG
542 printf("after: ");
543 puc_print_win877(bst, bsh, efir, efdr);
544#endif
545
546 bus_space_write_1(bst, bsh, 0x250, 0xaa);
547
548 /* configure the second W83877TF */
549 bus_space_write_1(bst, bsh, 0x3f0, 0x87);
550 bus_space_write_1(bst, bsh, 0x3f0, 0x87);
551 efir = 0x3f0;
552 efdr = 0x3f1;
553 val = rdspio(0x09) & 0x0f;
554 if (val != 0x0c) {
555 printf("conf_win877: Oops not a W83877TF\n");
556 return;
557 }
558
559#ifdef PUC_DEBUG
560 printf("before: ");
561 puc_print_win877(bst, bsh, efir, efdr);
562#endif
563
564 val = rdspio(0x16);
565 val |= 0x04;
566 wrspio(0x16, val);
567 val &= ~0x04;
568 wrspio(0x16, val);
569
570 wrspio(0x24, 0x3e8 >> 2);
571 wrspio(0x25, 0x3f8 >> 2);
572 wrspio(0x17, 0x03);
573 wrspio(0x28, 0x43);
574
575#ifdef PUC_DEBUG
576 printf("after: ");
577 puc_print_win877(bst, bsh, efir, efdr);
578#endif
579
580 bus_space_write_1(bst, bsh, 0x3f0, 0xaa);
581}
582
583#undef rdspio
584#undef wrspio
585
586static int puc_find_free_unit(char *name)
587{
588 devclass_t dc;
589 int start;
590 int unit;
591
592 unit = 0;
593 start = 0;
594 while (resource_int_value(name, unit, "port", &start) == 0 &&
595 start > 0)
596 unit++;
597 dc = devclass_find(name);
598 if (dc == NULL)
599 return (-1);
600 while (devclass_get_device(dc, unit))
601 unit++;
602#ifdef PUC_DEBUG
603 printf("puc: Using %s%d\n", name, unit);
604#endif
605 return (unit);
606}
607
608#ifdef PUC_DEBUG
609static void
610puc_print_resource_list(struct resource_list *rl)
611{
612 struct resource_list_entry *rle;
613
614 printf("print_resource_list: rl %p\n", rl);
615 SLIST_FOREACH(rle, rl, link)
616 printf("type %x, rid %x\n", rle->type, rle->rid);
617 printf("print_resource_list: end.\n");
618}
619#endif
620
621static struct resource *
622puc_alloc_resource(device_t dev, device_t child, int type, int *rid,
623 u_long start, u_long end, u_long count, u_int flags)
624{
625 struct puc_device *pdev;
626 struct resource *retval;
627 struct resource_list *rl;
628 struct resource_list_entry *rle;
629
630 pdev = device_get_ivars(child);
631 rl = &pdev->resources;
632
633#ifdef PUC_DEBUG
634 printf("puc_alloc_resource: pdev %p, looking for t %x, r %x\n",
635 pdev, type, *rid);
636 puc_print_resource_list(rl);
637#endif
638 retval = NULL;
639 rle = resource_list_find(rl, type, *rid);
640 if (rle) {
641 start = rle->start;
642 end = rle->end;
643 count = rle->count;
644#ifdef PUC_DEBUG
645 printf("found rle, %lx, %lx, %lx\n", start, end, count);
646#endif
647 retval = rle->res;
648 } else
649 printf("oops rle is gone\n");
650
651 return (retval);
652}
653
654static int
655puc_release_resource(device_t dev, device_t child, int type, int rid,
656 struct resource *res)
657{
658 return (0);
659}
660
661static int
662puc_get_resource(device_t dev, device_t child, int type, int rid,
663 u_long *startp, u_long *countp)
664{
665 struct puc_device *pdev;
666 struct resource_list *rl;
667 struct resource_list_entry *rle;
668
669 pdev = device_get_ivars(child);
670 rl = &pdev->resources;
671
672#ifdef PUC_DEBUG
673 printf("puc_get_resource: pdev %p, looking for t %x, r %x\n", pdev,
674 type, rid);
675 puc_print_resource_list(rl);
676#endif
677 rle = resource_list_find(rl, type, rid);
678 if (rle) {
679#ifdef PUC_DEBUG
680 printf("found rle %p,", rle);
681#endif
682 if (startp != NULL)
683 *startp = rle->start;
684 if (countp != NULL)
685 *countp = rle->count;
686#ifdef PUC_DEBUG
687 printf(" %lx, %lx\n", rle->start, rle->count);
688#endif
689 return (0);
690 } else
691 printf("oops rle is gone\n");
692 return (ENXIO);
693}
694
695static int
696puc_setup_intr(device_t dev, device_t child, struct resource *r, int flags,
697 void (*ihand)(void *), void *arg, void **cookiep)
698{
699 int i;
700 struct puc_softc *sc;
701
702 sc = (struct puc_softc *)device_get_softc(dev);
703 for (i = 0; PUC_PORT_VALID(sc->sc_desc, i); i++) {
704 if (sc->sc_ports[i].dev == child) {
705 if (sc->sc_ports[i].ihand != 0)
706 return (ENXIO);
707 sc->sc_ports[i].ihand = ihand;
708 sc->sc_ports[i].ihandarg = arg;
709 *cookiep = arg;
710 return (0);
711 }
712 }
713 return (ENXIO);
714}
715
716static int
717puc_teardown_intr(device_t dev, device_t child, struct resource *r,
718 void *cookie)
719{
720 int i;
721 struct puc_softc *sc;
722
723 sc = (struct puc_softc *)device_get_softc(dev);
724 for (i = 0; PUC_PORT_VALID(sc->sc_desc, i); i++) {
725 if (sc->sc_ports[i].dev == child) {
726 sc->sc_ports[i].ihand = NULL;
727 sc->sc_ports[i].ihandarg = NULL;
728 return (0);
729 }
730 }
731 return (ENXIO);
732}
733
734static int
735puc_read_ivar(device_t dev, device_t child, int index, uintptr_t *result)
736{
737 struct puc_device *pdev;
738
739 pdev = device_get_ivars(child);
740 if (pdev == NULL)
741 return (ENOENT);
742
743 switch(index) {
744 case PUC_IVAR_FREQ:
745 *result = pdev->serialfreq;
746 break;
747 default:
748 return (ENOENT);
749 }
750 return (0);
751}
752
753static device_method_t puc_pci_methods[] = {
754 /* Device interface */
755 DEVMETHOD(device_probe, puc_pci_probe),
756 DEVMETHOD(device_attach, puc_pci_attach),
757
758 DEVMETHOD(bus_alloc_resource, puc_alloc_resource),
759 DEVMETHOD(bus_release_resource, puc_release_resource),
760 DEVMETHOD(bus_get_resource, puc_get_resource),
761 DEVMETHOD(bus_read_ivar, puc_read_ivar),
762 DEVMETHOD(bus_setup_intr, puc_setup_intr),
763 DEVMETHOD(bus_teardown_intr, puc_teardown_intr),
764 DEVMETHOD(bus_print_child, bus_generic_print_child),
765 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
766 { 0, 0 }
767};
768
769static driver_t puc_pci_driver = {
770 "puc",
771 puc_pci_methods,
772 sizeof(struct puc_softc),
773};
774
775static devclass_t puc_devclass;
776
777DRIVER_MODULE(puc, pci, puc_pci_driver, puc_devclass, 0, 0);