1 /*-
2 * Copyright (c) 2006 Marcel Moolenaar
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 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following 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 ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD: stable/9/sys/dev/puc/puc.c 308403 2016-11-07 09:23:07Z hselasky $");
29
30 #include <sys/param.h>
31 #include <sys/systm.h>
32 #include <sys/kernel.h>
33 #include <sys/bus.h>
34 #include <sys/conf.h>
35 #include <sys/malloc.h>
36 #include <sys/mutex.h>
37
38 #include <machine/bus.h>
39 #include <machine/resource.h>
40 #include <sys/rman.h>
41
42 #include <dev/pci/pcireg.h>
43 #include <dev/pci/pcivar.h>
44
45 #include <dev/puc/puc_bus.h>
46 #include <dev/puc/puc_cfg.h>
47 #include <dev/puc/puc_bfe.h>
48
49 #define PUC_ISRCCNT 5
50
51 struct puc_port {
52 struct puc_bar *p_bar;
53 struct resource *p_rres;
54 struct resource *p_ires;
55 device_t p_dev;
56 int p_nr;
57 int p_type;
58 int p_rclk;
59
60 int p_hasintr:1;
61
62 serdev_intr_t *p_ihsrc[PUC_ISRCCNT];
63 void *p_iharg;
64
65 int p_ipend;
66 };
67
68 devclass_t puc_devclass;
69 const char puc_driver_name[] = "puc";
70
71 static MALLOC_DEFINE(M_PUC, "PUC", "PUC driver");
72
73 struct puc_bar *
puc_get_bar(struct puc_softc * sc,int rid)74 puc_get_bar(struct puc_softc *sc, int rid)
75 {
76 struct puc_bar *bar;
77 struct rman *rm;
78 u_long end, start;
79 int error, i;
80
81 /* Find the BAR entry with the given RID. */
82 i = 0;
83 while (i < PUC_PCI_BARS && sc->sc_bar[i].b_rid != rid)
84 i++;
85 if (i < PUC_PCI_BARS)
86 return (&sc->sc_bar[i]);
87
88 /* Not found. If we're looking for an unused entry, return NULL. */
89 if (rid == -1)
90 return (NULL);
91
92 /* Get an unused entry for us to fill. */
93 bar = puc_get_bar(sc, -1);
94 if (bar == NULL)
95 return (NULL);
96 bar->b_rid = rid;
97 bar->b_type = SYS_RES_IOPORT;
98 bar->b_res = bus_alloc_resource_any(sc->sc_dev, bar->b_type,
99 &bar->b_rid, RF_ACTIVE);
100 if (bar->b_res == NULL) {
101 bar->b_rid = rid;
102 bar->b_type = SYS_RES_MEMORY;
103 bar->b_res = bus_alloc_resource_any(sc->sc_dev, bar->b_type,
104 &bar->b_rid, RF_ACTIVE);
105 if (bar->b_res == NULL) {
106 bar->b_rid = -1;
107 return (NULL);
108 }
109 }
110
111 /* Update our managed space. */
112 rm = (bar->b_type == SYS_RES_IOPORT) ? &sc->sc_ioport : &sc->sc_iomem;
113 start = rman_get_start(bar->b_res);
114 end = rman_get_end(bar->b_res);
115 error = rman_manage_region(rm, start, end);
116 if (error) {
117 bus_release_resource(sc->sc_dev, bar->b_type, bar->b_rid,
118 bar->b_res);
119 bar->b_res = NULL;
120 bar->b_rid = -1;
121 bar = NULL;
122 }
123
124 return (bar);
125 }
126
127 static int
puc_intr(void * arg)128 puc_intr(void *arg)
129 {
130 struct puc_port *port;
131 struct puc_softc *sc = arg;
132 u_long ds, dev, devs;
133 int i, idx, ipend, isrc, nints;
134 uint8_t ilr;
135
136 nints = 0;
137 while (1) {
138 /*
139 * Obtain the set of devices with pending interrupts.
140 */
141 devs = sc->sc_serdevs;
142 if (sc->sc_ilr == PUC_ILR_DIGI) {
143 idx = 0;
144 while (devs & (0xfful << idx)) {
145 ilr = ~bus_read_1(sc->sc_port[idx].p_rres, 7);
146 devs &= ~0ul ^ ((u_long)ilr << idx);
147 idx += 8;
148 }
149 } else if (sc->sc_ilr == PUC_ILR_QUATECH) {
150 /*
151 * Don't trust the value if it's the same as the option
152 * register. It may mean that the ILR is not active and
153 * we're reading the option register instead. This may
154 * lead to false positives on 8-port boards.
155 */
156 ilr = bus_read_1(sc->sc_port[0].p_rres, 7);
157 if (ilr != (sc->sc_cfg_data & 0xff))
158 devs &= (u_long)ilr;
159 }
160 if (devs == 0UL)
161 break;
162
163 /*
164 * Obtain the set of interrupt sources from those devices
165 * that have pending interrupts.
166 */
167 ipend = 0;
168 idx = 0, dev = 1UL;
169 ds = devs;
170 while (ds != 0UL) {
171 while ((ds & dev) == 0UL)
172 idx++, dev <<= 1;
173 ds &= ~dev;
174 port = &sc->sc_port[idx];
175 port->p_ipend = SERDEV_IPEND(port->p_dev);
176 ipend |= port->p_ipend;
177 }
178 if (ipend == 0)
179 break;
180
181 i = 0, isrc = SER_INT_OVERRUN;
182 while (ipend) {
183 while (i < PUC_ISRCCNT && !(ipend & isrc))
184 i++, isrc <<= 1;
185 KASSERT(i < PUC_ISRCCNT, ("%s", __func__));
186 ipend &= ~isrc;
187 idx = 0, dev = 1UL;
188 ds = devs;
189 while (ds != 0UL) {
190 while ((ds & dev) == 0UL)
191 idx++, dev <<= 1;
192 ds &= ~dev;
193 port = &sc->sc_port[idx];
194 if (!(port->p_ipend & isrc))
195 continue;
196 if (port->p_ihsrc[i] != NULL)
197 (*port->p_ihsrc[i])(port->p_iharg);
198 nints++;
199 }
200 }
201 }
202
203 return ((nints > 0) ? FILTER_HANDLED : FILTER_STRAY);
204 }
205
206 int
puc_bfe_attach(device_t dev)207 puc_bfe_attach(device_t dev)
208 {
209 char buffer[64];
210 struct puc_bar *bar;
211 struct puc_port *port;
212 struct puc_softc *sc;
213 struct rman *rm;
214 intptr_t res;
215 bus_addr_t ofs, start;
216 bus_size_t size;
217 bus_space_handle_t bsh;
218 bus_space_tag_t bst;
219 int error, idx;
220
221 sc = device_get_softc(dev);
222
223 for (idx = 0; idx < PUC_PCI_BARS; idx++)
224 sc->sc_bar[idx].b_rid = -1;
225
226 do {
227 sc->sc_ioport.rm_type = RMAN_ARRAY;
228 error = rman_init(&sc->sc_ioport);
229 if (!error) {
230 sc->sc_iomem.rm_type = RMAN_ARRAY;
231 error = rman_init(&sc->sc_iomem);
232 if (!error) {
233 sc->sc_irq.rm_type = RMAN_ARRAY;
234 error = rman_init(&sc->sc_irq);
235 if (!error)
236 break;
237 rman_fini(&sc->sc_iomem);
238 }
239 rman_fini(&sc->sc_ioport);
240 }
241 return (error);
242 } while (0);
243
244 snprintf(buffer, sizeof(buffer), "%s I/O port mapping",
245 device_get_nameunit(dev));
246 sc->sc_ioport.rm_descr = strdup(buffer, M_PUC);
247 snprintf(buffer, sizeof(buffer), "%s I/O memory mapping",
248 device_get_nameunit(dev));
249 sc->sc_iomem.rm_descr = strdup(buffer, M_PUC);
250 snprintf(buffer, sizeof(buffer), "%s port numbers",
251 device_get_nameunit(dev));
252 sc->sc_irq.rm_descr = strdup(buffer, M_PUC);
253
254 error = puc_config(sc, PUC_CFG_GET_NPORTS, 0, &res);
255 KASSERT(error == 0, ("%s %d", __func__, __LINE__));
256 sc->sc_nports = (int)res;
257 sc->sc_port = malloc(sc->sc_nports * sizeof(struct puc_port),
258 M_PUC, M_WAITOK|M_ZERO);
259
260 error = rman_manage_region(&sc->sc_irq, 1, sc->sc_nports);
261 if (error)
262 goto fail;
263
264 error = puc_config(sc, PUC_CFG_SETUP, 0, &res);
265 if (error)
266 goto fail;
267
268 for (idx = 0; idx < sc->sc_nports; idx++) {
269 port = &sc->sc_port[idx];
270 port->p_nr = idx + 1;
271 error = puc_config(sc, PUC_CFG_GET_TYPE, idx, &res);
272 if (error)
273 goto fail;
274 port->p_type = res;
275 error = puc_config(sc, PUC_CFG_GET_RID, idx, &res);
276 if (error)
277 goto fail;
278 bar = puc_get_bar(sc, res);
279 if (bar == NULL) {
280 error = ENXIO;
281 goto fail;
282 }
283 port->p_bar = bar;
284 start = rman_get_start(bar->b_res);
285 error = puc_config(sc, PUC_CFG_GET_OFS, idx, &res);
286 if (error)
287 goto fail;
288 ofs = res;
289 error = puc_config(sc, PUC_CFG_GET_LEN, idx, &res);
290 if (error)
291 goto fail;
292 size = res;
293 rm = (bar->b_type == SYS_RES_IOPORT)
294 ? &sc->sc_ioport: &sc->sc_iomem;
295 port->p_rres = rman_reserve_resource(rm, start + ofs,
296 start + ofs + size - 1, size, 0, NULL);
297 if (port->p_rres != NULL) {
298 bsh = rman_get_bushandle(bar->b_res);
299 bst = rman_get_bustag(bar->b_res);
300 bus_space_subregion(bst, bsh, ofs, size, &bsh);
301 rman_set_bushandle(port->p_rres, bsh);
302 rman_set_bustag(port->p_rres, bst);
303 }
304 port->p_ires = rman_reserve_resource(&sc->sc_irq, port->p_nr,
305 port->p_nr, 1, 0, NULL);
306 if (port->p_ires == NULL) {
307 error = ENXIO;
308 goto fail;
309 }
310 error = puc_config(sc, PUC_CFG_GET_CLOCK, idx, &res);
311 if (error)
312 goto fail;
313 port->p_rclk = res;
314
315 port->p_dev = device_add_child(dev, NULL, -1);
316 if (port->p_dev != NULL)
317 device_set_ivars(port->p_dev, (void *)port);
318 }
319
320 error = puc_config(sc, PUC_CFG_GET_ILR, 0, &res);
321 if (error)
322 goto fail;
323 sc->sc_ilr = res;
324 if (bootverbose && sc->sc_ilr != 0)
325 device_printf(dev, "using interrupt latch register\n");
326
327 sc->sc_irid = 0;
328 sc->sc_ires = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->sc_irid,
329 RF_ACTIVE|RF_SHAREABLE);
330 if (sc->sc_ires != NULL) {
331 error = bus_setup_intr(dev, sc->sc_ires,
332 INTR_TYPE_TTY, puc_intr, NULL, sc, &sc->sc_icookie);
333 if (error)
334 error = bus_setup_intr(dev, sc->sc_ires,
335 INTR_TYPE_TTY | INTR_MPSAFE, NULL,
336 (driver_intr_t *)puc_intr, sc, &sc->sc_icookie);
337 else
338 sc->sc_fastintr = 1;
339
340 if (error) {
341 device_printf(dev, "could not activate interrupt\n");
342 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irid,
343 sc->sc_ires);
344 sc->sc_ires = NULL;
345 }
346 }
347 if (sc->sc_ires == NULL) {
348 /* XXX no interrupt resource. Force polled mode. */
349 sc->sc_polled = 1;
350 }
351
352 /* Probe and attach our children. */
353 for (idx = 0; idx < sc->sc_nports; idx++) {
354 port = &sc->sc_port[idx];
355 if (port->p_dev == NULL)
356 continue;
357 error = device_probe_and_attach(port->p_dev);
358 if (error) {
359 device_delete_child(dev, port->p_dev);
360 port->p_dev = NULL;
361 }
362 }
363
364 /*
365 * If there are no serdev devices, then our interrupt handler
366 * will do nothing. Tear it down.
367 */
368 if (sc->sc_serdevs == 0UL)
369 bus_teardown_intr(dev, sc->sc_ires, sc->sc_icookie);
370
371 return (0);
372
373 fail:
374 for (idx = 0; idx < sc->sc_nports; idx++) {
375 port = &sc->sc_port[idx];
376 if (port->p_dev != NULL)
377 device_delete_child(dev, port->p_dev);
378 if (port->p_rres != NULL)
379 rman_release_resource(port->p_rres);
380 if (port->p_ires != NULL)
381 rman_release_resource(port->p_ires);
382 }
383 for (idx = 0; idx < PUC_PCI_BARS; idx++) {
384 bar = &sc->sc_bar[idx];
385 if (bar->b_res != NULL)
386 bus_release_resource(sc->sc_dev, bar->b_type,
387 bar->b_rid, bar->b_res);
388 }
389 rman_fini(&sc->sc_irq);
390 free(__DECONST(void *, sc->sc_irq.rm_descr), M_PUC);
391 rman_fini(&sc->sc_iomem);
392 free(__DECONST(void *, sc->sc_iomem.rm_descr), M_PUC);
393 rman_fini(&sc->sc_ioport);
394 free(__DECONST(void *, sc->sc_ioport.rm_descr), M_PUC);
395 free(sc->sc_port, M_PUC);
396 return (error);
397 }
398
399 int
puc_bfe_detach(device_t dev)400 puc_bfe_detach(device_t dev)
401 {
402 struct puc_bar *bar;
403 struct puc_port *port;
404 struct puc_softc *sc;
405 int error, idx;
406
407 sc = device_get_softc(dev);
408
409 /* Detach our children. */
410 error = 0;
411 for (idx = 0; idx < sc->sc_nports; idx++) {
412 port = &sc->sc_port[idx];
413 if (port->p_dev == NULL)
414 continue;
415 if (device_delete_child(dev, port->p_dev) == 0) {
416 if (port->p_rres != NULL)
417 rman_release_resource(port->p_rres);
418 if (port->p_ires != NULL)
419 rman_release_resource(port->p_ires);
420 } else
421 error = ENXIO;
422 }
423 if (error)
424 return (error);
425
426 if (sc->sc_serdevs != 0UL)
427 bus_teardown_intr(dev, sc->sc_ires, sc->sc_icookie);
428 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irid, sc->sc_ires);
429
430 for (idx = 0; idx < PUC_PCI_BARS; idx++) {
431 bar = &sc->sc_bar[idx];
432 if (bar->b_res != NULL)
433 bus_release_resource(sc->sc_dev, bar->b_type,
434 bar->b_rid, bar->b_res);
435 }
436
437 rman_fini(&sc->sc_irq);
438 free(__DECONST(void *, sc->sc_irq.rm_descr), M_PUC);
439 rman_fini(&sc->sc_iomem);
440 free(__DECONST(void *, sc->sc_iomem.rm_descr), M_PUC);
441 rman_fini(&sc->sc_ioport);
442 free(__DECONST(void *, sc->sc_ioport.rm_descr), M_PUC);
443 free(sc->sc_port, M_PUC);
444 return (0);
445 }
446
447 int
puc_bfe_probe(device_t dev,const struct puc_cfg * cfg)448 puc_bfe_probe(device_t dev, const struct puc_cfg *cfg)
449 {
450 struct puc_softc *sc;
451 intptr_t res;
452 int error;
453
454 sc = device_get_softc(dev);
455 sc->sc_dev = dev;
456 sc->sc_cfg = cfg;
457
458 /* We don't attach to single-port serial cards. */
459 if (cfg->ports == PUC_PORT_1S || cfg->ports == PUC_PORT_1P)
460 return (EDOOFUS);
461 error = puc_config(sc, PUC_CFG_GET_NPORTS, 0, &res);
462 if (error)
463 return (error);
464 error = puc_config(sc, PUC_CFG_GET_DESC, 0, &res);
465 if (error)
466 return (error);
467 if (res != 0)
468 device_set_desc(dev, (const char *)res);
469 return (BUS_PROBE_DEFAULT);
470 }
471
472 struct resource *
puc_bus_alloc_resource(device_t dev,device_t child,int type,int * rid,u_long start,u_long end,u_long count,u_int flags)473 puc_bus_alloc_resource(device_t dev, device_t child, int type, int *rid,
474 u_long start, u_long end, u_long count, u_int flags)
475 {
476 struct puc_port *port;
477 struct resource *res;
478 device_t assigned, originator;
479 int error;
480
481 /* Get our immediate child. */
482 originator = child;
483 while (child != NULL && device_get_parent(child) != dev)
484 child = device_get_parent(child);
485 if (child == NULL)
486 return (NULL);
487
488 port = device_get_ivars(child);
489 KASSERT(port != NULL, ("%s %d", __func__, __LINE__));
490
491 if (rid == NULL || *rid != 0)
492 return (NULL);
493
494 /* We only support default allocations. */
495 if (start != 0UL || end != ~0UL)
496 return (NULL);
497
498 if (type == port->p_bar->b_type)
499 res = port->p_rres;
500 else if (type == SYS_RES_IRQ)
501 res = port->p_ires;
502 else
503 return (NULL);
504
505 if (res == NULL)
506 return (NULL);
507
508 assigned = rman_get_device(res);
509 if (assigned == NULL) /* Not allocated */
510 rman_set_device(res, originator);
511 else if (assigned != originator)
512 return (NULL);
513
514 if (flags & RF_ACTIVE) {
515 error = rman_activate_resource(res);
516 if (error) {
517 if (assigned == NULL)
518 rman_set_device(res, NULL);
519 return (NULL);
520 }
521 }
522
523 return (res);
524 }
525
526 int
puc_bus_release_resource(device_t dev,device_t child,int type,int rid,struct resource * res)527 puc_bus_release_resource(device_t dev, device_t child, int type, int rid,
528 struct resource *res)
529 {
530 struct puc_port *port;
531 device_t originator;
532
533 /* Get our immediate child. */
534 originator = child;
535 while (child != NULL && device_get_parent(child) != dev)
536 child = device_get_parent(child);
537 if (child == NULL)
538 return (EINVAL);
539
540 port = device_get_ivars(child);
541 KASSERT(port != NULL, ("%s %d", __func__, __LINE__));
542
543 if (rid != 0 || res == NULL)
544 return (EINVAL);
545
546 if (type == port->p_bar->b_type) {
547 if (res != port->p_rres)
548 return (EINVAL);
549 } else if (type == SYS_RES_IRQ) {
550 if (res != port->p_ires)
551 return (EINVAL);
552 if (port->p_hasintr)
553 return (EBUSY);
554 } else
555 return (EINVAL);
556
557 if (rman_get_device(res) != originator)
558 return (ENXIO);
559 if (rman_get_flags(res) & RF_ACTIVE)
560 rman_deactivate_resource(res);
561 rman_set_device(res, NULL);
562 return (0);
563 }
564
565 int
puc_bus_get_resource(device_t dev,device_t child,int type,int rid,u_long * startp,u_long * countp)566 puc_bus_get_resource(device_t dev, device_t child, int type, int rid,
567 u_long *startp, u_long *countp)
568 {
569 struct puc_port *port;
570 struct resource *res;
571 u_long start;
572
573 /* Get our immediate child. */
574 while (child != NULL && device_get_parent(child) != dev)
575 child = device_get_parent(child);
576 if (child == NULL)
577 return (EINVAL);
578
579 port = device_get_ivars(child);
580 KASSERT(port != NULL, ("%s %d", __func__, __LINE__));
581
582 if (type == port->p_bar->b_type)
583 res = port->p_rres;
584 else if (type == SYS_RES_IRQ)
585 res = port->p_ires;
586 else
587 return (ENXIO);
588
589 if (rid != 0 || res == NULL)
590 return (ENXIO);
591
592 start = rman_get_start(res);
593 if (startp != NULL)
594 *startp = start;
595 if (countp != NULL)
596 *countp = rman_get_end(res) - start + 1;
597 return (0);
598 }
599
600 int
puc_bus_setup_intr(device_t dev,device_t child,struct resource * res,int flags,driver_filter_t * filt,void (* ihand)(void *),void * arg,void ** cookiep)601 puc_bus_setup_intr(device_t dev, device_t child, struct resource *res,
602 int flags, driver_filter_t *filt, void (*ihand)(void *), void *arg, void **cookiep)
603 {
604 struct puc_port *port;
605 struct puc_softc *sc;
606 device_t originator;
607 int i, isrc, serdev;
608
609 sc = device_get_softc(dev);
610
611 /* Get our immediate child. */
612 originator = child;
613 while (child != NULL && device_get_parent(child) != dev)
614 child = device_get_parent(child);
615 if (child == NULL)
616 return (EINVAL);
617
618 port = device_get_ivars(child);
619 KASSERT(port != NULL, ("%s %d", __func__, __LINE__));
620
621 if (cookiep == NULL || res != port->p_ires)
622 return (EINVAL);
623 /* We demand that serdev devices use filter_only interrupts. */
624 if (port->p_type == PUC_TYPE_SERIAL && ihand != NULL)
625 return (ENXIO);
626 if (rman_get_device(port->p_ires) != originator)
627 return (ENXIO);
628
629 /*
630 * Have non-serdev ports handled by the bus implementation. It
631 * supports multiple handlers for a single interrupt as it is,
632 * so we wouldn't add value if we did it ourselves.
633 */
634 serdev = 0;
635 if (port->p_type == PUC_TYPE_SERIAL) {
636 i = 0, isrc = SER_INT_OVERRUN;
637 while (i < PUC_ISRCCNT) {
638 port->p_ihsrc[i] = SERDEV_IHAND(originator, isrc);
639 if (port->p_ihsrc[i] != NULL)
640 serdev = 1;
641 i++, isrc <<= 1;
642 }
643 }
644 if (!serdev)
645 return (BUS_SETUP_INTR(device_get_parent(dev), originator,
646 sc->sc_ires, flags, filt, ihand, arg, cookiep));
647
648 sc->sc_serdevs |= 1UL << (port->p_nr - 1);
649
650 port->p_hasintr = 1;
651 port->p_iharg = arg;
652
653 *cookiep = port;
654 return (0);
655 }
656
657 int
puc_bus_teardown_intr(device_t dev,device_t child,struct resource * res,void * cookie)658 puc_bus_teardown_intr(device_t dev, device_t child, struct resource *res,
659 void *cookie)
660 {
661 struct puc_port *port;
662 struct puc_softc *sc;
663 device_t originator;
664 int i;
665
666 sc = device_get_softc(dev);
667
668 /* Get our immediate child. */
669 originator = child;
670 while (child != NULL && device_get_parent(child) != dev)
671 child = device_get_parent(child);
672 if (child == NULL)
673 return (EINVAL);
674
675 port = device_get_ivars(child);
676 KASSERT(port != NULL, ("%s %d", __func__, __LINE__));
677
678 if (res != port->p_ires)
679 return (EINVAL);
680 if (rman_get_device(port->p_ires) != originator)
681 return (ENXIO);
682
683 if (!port->p_hasintr)
684 return (BUS_TEARDOWN_INTR(device_get_parent(dev), originator,
685 sc->sc_ires, cookie));
686
687 if (cookie != port)
688 return (EINVAL);
689
690 port->p_hasintr = 0;
691 port->p_iharg = NULL;
692
693 for (i = 0; i < PUC_ISRCCNT; i++)
694 port->p_ihsrc[i] = NULL;
695
696 return (0);
697 }
698
699 int
puc_bus_read_ivar(device_t dev,device_t child,int index,uintptr_t * result)700 puc_bus_read_ivar(device_t dev, device_t child, int index, uintptr_t *result)
701 {
702 struct puc_port *port;
703
704 /* Get our immediate child. */
705 while (child != NULL && device_get_parent(child) != dev)
706 child = device_get_parent(child);
707 if (child == NULL)
708 return (EINVAL);
709
710 port = device_get_ivars(child);
711 KASSERT(port != NULL, ("%s %d", __func__, __LINE__));
712
713 if (result == NULL)
714 return (EINVAL);
715
716 switch(index) {
717 case PUC_IVAR_CLOCK:
718 *result = port->p_rclk;
719 break;
720 case PUC_IVAR_TYPE:
721 *result = port->p_type;
722 break;
723 default:
724 return (ENOENT);
725 }
726 return (0);
727 }
728
729 int
puc_bus_print_child(device_t dev,device_t child)730 puc_bus_print_child(device_t dev, device_t child)
731 {
732 struct puc_port *port;
733 int retval;
734
735 port = device_get_ivars(child);
736 retval = 0;
737
738 retval += bus_print_child_header(dev, child);
739 retval += printf(" at port %d", port->p_nr);
740 retval += bus_print_child_footer(dev, child);
741
742 return (retval);
743 }
744
745 int
puc_bus_child_location_str(device_t dev,device_t child,char * buf,size_t buflen)746 puc_bus_child_location_str(device_t dev, device_t child, char *buf,
747 size_t buflen)
748 {
749 struct puc_port *port;
750
751 port = device_get_ivars(child);
752 snprintf(buf, buflen, "port=%d", port->p_nr);
753 return (0);
754 }
755
756 int
puc_bus_child_pnpinfo_str(device_t dev,device_t child,char * buf,size_t buflen)757 puc_bus_child_pnpinfo_str(device_t dev, device_t child, char *buf,
758 size_t buflen)
759 {
760 struct puc_port *port;
761
762 port = device_get_ivars(child);
763 snprintf(buf, buflen, "type=%d", port->p_type);
764 return (0);
765 }
766