1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright 2014 Garrett D'Amore <garrett@damore.org>
23 * Copyright (c) 2012 Gary Mills
24 * Copyright (c) 1992, 2010, Oracle and/or its affiliates. All rights reserved.
25 */
26
27 /*
28 * ISA bus nexus driver
29 */
30
31 #include <sys/types.h>
32 #include <sys/cmn_err.h>
33 #include <sys/conf.h>
34 #include <sys/modctl.h>
35 #include <sys/autoconf.h>
36 #include <sys/errno.h>
37 #include <sys/debug.h>
38 #include <sys/kmem.h>
39 #include <sys/psm.h>
40 #include <sys/ddidmareq.h>
41 #include <sys/ddi_impldefs.h>
42 #include <sys/ddi_subrdefs.h>
43 #include <sys/dma_engine.h>
44 #include <sys/ddi.h>
45 #include <sys/sunddi.h>
46 #include <sys/sunndi.h>
47 #include <sys/acpi/acpi_enum.h>
48 #include <sys/mach_intr.h>
49 #include <sys/pci.h>
50 #include <sys/note.h>
51 #include <sys/boot_console.h>
52 #include <sys/apic.h>
53 #if defined(__xpv)
54 #include <sys/hypervisor.h>
55 #include <sys/evtchn_impl.h>
56
57 extern int console_hypervisor_dev_type(int *);
58 #endif
59
60
61 extern int pseudo_isa;
62 extern int isa_resource_setup(void);
63 extern int (*psm_intr_ops)(dev_info_t *, ddi_intr_handle_impl_t *,
64 psm_intr_op_t, int *);
65 extern void pci_register_isa_resources(int, uint32_t, uint32_t);
66 static void isa_enumerate(int);
67 static void enumerate_BIOS_serial(dev_info_t *);
68 static void adjust_prtsz(dev_info_t *isa_dip);
69 static void isa_create_ranges_prop(dev_info_t *);
70
71 #define USED_RESOURCES "used-resources"
72
73 /*
74 * The following typedef is used to represent an entry in the "ranges"
75 * property of a pci-isa bridge device node.
76 */
77 typedef struct {
78 uint32_t child_high;
79 uint32_t child_low;
80 uint32_t parent_high;
81 uint32_t parent_mid;
82 uint32_t parent_low;
83 uint32_t size;
84 } pib_ranges_t;
85
86 typedef struct {
87 uint32_t base;
88 uint32_t len;
89 } used_ranges_t;
90
91 #define USED_CELL_SIZE 2 /* 1 byte addr, 1 byte size */
92 #define ISA_ADDR_IO 1 /* IO address space */
93 #define ISA_ADDR_MEM 0 /* memory adress space */
94
95 /*
96 * #define ISA_DEBUG 1
97 */
98
99 #define num_BIOS_serial 4 /* number of BIOS serial ports to look at */
100 #define min_BIOS_serial 2 /* minimum number of BIOS serial ports */
101 #define COM_ISR 2 /* 16550 intr status register */
102 #define COM_SCR 7 /* 16550 scratch register */
103
104 /*
105 * For serial ports not enumerated by ACPI, and parallel ports with
106 * illegal size. Typically, a system can have as many as 4 serial
107 * ports and 3 parallel ports.
108 */
109 #define MAX_EXTRA_RESOURCE 7
110 static struct regspec isa_extra_resource[MAX_EXTRA_RESOURCE];
111 static int isa_extra_count = 0;
112
113 /* Register definitions for COM1 to COM4. */
114 static struct regspec asy_regs[] = {
115 {1, 0x3f8, 0x8},
116 {1, 0x2f8, 0x8},
117 {1, 0x3e8, 0x8},
118 {1, 0x2e8, 0x8}
119 };
120
121 /* Serial port interrupt vectors for COM1 to COM4. */
122 static int asy_intrs[] = {0x4, 0x3, 0x4, 0x3};
123 /* Bitfield indicating which interrupts are overridden by eeprom config */
124 static uchar_t asy_intr_override = 0;
125
126 /*
127 * Local data
128 */
129
130 static ddi_dma_attr_t ISA_dma_attr = {
131 DMA_ATTR_V0,
132 (unsigned long long)0,
133 (unsigned long long)0x00ffffff,
134 0x0000ffff,
135 1,
136 1,
137 1,
138 (unsigned long long)0xffffffff,
139 (unsigned long long)0x0000ffff,
140 1,
141 1,
142 0
143 };
144
145
146 /*
147 * Config information
148 */
149
150 static int
151 isa_bus_map(dev_info_t *dip, dev_info_t *rdip, ddi_map_req_t *mp,
152 off_t offset, off_t len, caddr_t *vaddrp);
153
154 static int
155 isa_dma_allochdl(dev_info_t *, dev_info_t *, ddi_dma_attr_t *,
156 int (*waitfp)(caddr_t), caddr_t arg, ddi_dma_handle_t *);
157
158 static int
159 isa_dma_mctl(dev_info_t *, dev_info_t *, ddi_dma_handle_t, enum ddi_dma_ctlops,
160 off_t *, size_t *, caddr_t *, uint_t);
161
162 static int
163 isa_ctlops(dev_info_t *, dev_info_t *, ddi_ctl_enum_t, void *, void *);
164
165 static int
166 isa_intr_ops(dev_info_t *pdip, dev_info_t *rdip, ddi_intr_op_t intr_op,
167 ddi_intr_handle_impl_t *hdlp, void *result);
168 static int isa_alloc_intr_fixed(dev_info_t *, ddi_intr_handle_impl_t *, void *);
169 static int isa_free_intr_fixed(dev_info_t *, ddi_intr_handle_impl_t *);
170
171 struct bus_ops isa_bus_ops = {
172 BUSO_REV,
173 isa_bus_map,
174 NULL,
175 NULL,
176 NULL,
177 i_ddi_map_fault,
178 NULL,
179 isa_dma_allochdl,
180 ddi_dma_freehdl,
181 ddi_dma_bindhdl,
182 ddi_dma_unbindhdl,
183 ddi_dma_flush,
184 ddi_dma_win,
185 isa_dma_mctl,
186 isa_ctlops,
187 ddi_bus_prop_op,
188 NULL, /* (*bus_get_eventcookie)(); */
189 NULL, /* (*bus_add_eventcall)(); */
190 NULL, /* (*bus_remove_eventcall)(); */
191 NULL, /* (*bus_post_event)(); */
192 NULL, /* (*bus_intr_ctl)(); */
193 NULL, /* (*bus_config)(); */
194 NULL, /* (*bus_unconfig)(); */
195 NULL, /* (*bus_fm_init)(); */
196 NULL, /* (*bus_fm_fini)(); */
197 NULL, /* (*bus_fm_access_enter)(); */
198 NULL, /* (*bus_fm_access_exit)(); */
199 NULL, /* (*bus_power)(); */
200 isa_intr_ops /* (*bus_intr_op)(); */
201 };
202
203
204 static int isa_attach(dev_info_t *devi, ddi_attach_cmd_t cmd);
205
206 /*
207 * Internal isa ctlops support routines
208 */
209 static int isa_initchild(dev_info_t *child);
210
211 struct dev_ops isa_ops = {
212 DEVO_REV, /* devo_rev, */
213 0, /* refcnt */
214 ddi_no_info, /* info */
215 nulldev, /* identify */
216 nulldev, /* probe */
217 isa_attach, /* attach */
218 nulldev, /* detach */
219 nodev, /* reset */
220 (struct cb_ops *)0, /* driver operations */
221 &isa_bus_ops, /* bus operations */
222 NULL, /* power */
223 ddi_quiesce_not_needed, /* quiesce */
224 };
225
226 /*
227 * Module linkage information for the kernel.
228 */
229
230 static struct modldrv modldrv = {
231 &mod_driverops, /* Type of module. This is ISA bus driver */
232 "isa nexus driver for 'ISA'",
233 &isa_ops, /* driver ops */
234 };
235
236 static struct modlinkage modlinkage = {
237 MODREV_1,
238 &modldrv,
239 NULL
240 };
241
242 int
243 _init(void)
244 {
245 int err;
246 char tty_irq_param[9] = "ttyX-irq";
247 char *tty_irq;
248 int i;
249
250 if ((err = mod_install(&modlinkage)) != 0)
251 return (err);
252
253 /* Check if any tty irqs are overridden by eeprom config */
254 for (i = 0; i < num_BIOS_serial; i++) {
255 tty_irq_param[3] = 'a' + i;
256 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(),
257 DDI_PROP_DONTPASS, tty_irq_param, &tty_irq)
258 == DDI_PROP_SUCCESS) {
259 long data;
260
261 if (ddi_strtol(tty_irq, NULL, 0, &data) == 0) {
262 asy_intrs[i] = (int)data;
263 asy_intr_override |= 1<<i;
264 }
265
266 ddi_prop_free(tty_irq);
267 }
268 }
269
270 impl_bus_add_probe(isa_enumerate);
271 return (0);
272 }
273
274 int
275 _fini(void)
276 {
277 int err;
278
279 impl_bus_delete_probe(isa_enumerate);
280
281 if ((err = mod_remove(&modlinkage)) != 0)
282 return (err);
283
284 return (0);
285 }
286
287 int
288 _info(struct modinfo *modinfop)
289 {
290 return (mod_info(&modlinkage, modinfop));
291 }
292
293 static int
294 isa_attach(dev_info_t *devi, ddi_attach_cmd_t cmd)
295 {
296 int rval;
297
298 #if defined(__xpv)
299 /*
300 * don't allow isa to attach in domU. this can happen if someone sets
301 * the console wrong, etc. ISA devices assume the H/W is there and
302 * will cause the domU to panic.
303 */
304 if (!DOMAIN_IS_INITDOMAIN(xen_info)) {
305 return (DDI_FAILURE);
306 }
307 #endif
308
309 switch (cmd) {
310 case DDI_ATTACH:
311 break;
312 case DDI_RESUME:
313 return (DDI_SUCCESS);
314 default:
315 return (DDI_FAILURE);
316 }
317
318 if ((rval = i_dmae_init(devi)) == DDI_SUCCESS)
319 ddi_report_dev(devi);
320
321 return (rval);
322 }
323
324 #define SET_RNGS(rng_p, used_p, ctyp, ptyp) do { \
325 (rng_p)->child_high = (ctyp); \
326 (rng_p)->child_low = (rng_p)->parent_low = (used_p)->base; \
327 (rng_p)->parent_high = (ptyp); \
328 (rng_p)->parent_mid = 0; \
329 (rng_p)->size = (used_p)->len; \
330 _NOTE(CONSTCOND) } while (0)
331 static uint_t
332 isa_used_to_ranges(int ctype, int *array, uint_t size, pib_ranges_t *ranges)
333 {
334 used_ranges_t *used_p;
335 pib_ranges_t *rng_p = ranges;
336 uint_t i, ptype;
337
338 ptype = (ctype == ISA_ADDR_IO) ? PCI_ADDR_IO : PCI_ADDR_MEM32;
339 ptype |= PCI_REG_REL_M;
340 size /= USED_CELL_SIZE;
341 used_p = (used_ranges_t *)array;
342 SET_RNGS(rng_p, used_p, ctype, ptype);
343 for (i = 1, used_p++; i < size; i++, used_p++) {
344 /* merge ranges record if applicable */
345 if (rng_p->child_low + rng_p->size == used_p->base)
346 rng_p->size += used_p->len;
347 else {
348 rng_p++;
349 SET_RNGS(rng_p, used_p, ctype, ptype);
350 }
351 }
352 return (rng_p - ranges + 1);
353 }
354
355 void
356 isa_remove_res_from_pci(int type, int *array, uint_t size)
357 {
358 int i;
359 used_ranges_t *used_p;
360
361 size /= USED_CELL_SIZE;
362 used_p = (used_ranges_t *)array;
363 for (i = 0; i < size; i++, used_p++)
364 pci_register_isa_resources(type, used_p->base, used_p->len);
365 }
366
367 static void
368 isa_create_ranges_prop(dev_info_t *dip)
369 {
370 dev_info_t *used;
371 int *ioarray, *memarray, status;
372 uint_t nio = 0, nmem = 0, nrng = 0, n;
373 pib_ranges_t *ranges;
374
375 used = ddi_find_devinfo(USED_RESOURCES, -1, 0);
376 if (used == NULL) {
377 cmn_err(CE_WARN, "Failed to find used-resources <%s>\n",
378 ddi_get_name(dip));
379 return;
380 }
381 status = ddi_prop_lookup_int_array(DDI_DEV_T_ANY, used,
382 DDI_PROP_DONTPASS, "io-space", &ioarray, &nio);
383 if (status != DDI_PROP_SUCCESS && status != DDI_PROP_NOT_FOUND) {
384 cmn_err(CE_WARN, "io-space property failure for %s (%x)\n",
385 ddi_get_name(used), status);
386 return;
387 }
388 status = ddi_prop_lookup_int_array(DDI_DEV_T_ANY, used,
389 DDI_PROP_DONTPASS, "device-memory", &memarray, &nmem);
390 if (status != DDI_PROP_SUCCESS && status != DDI_PROP_NOT_FOUND) {
391 cmn_err(CE_WARN, "device-memory property failure for %s (%x)\n",
392 ddi_get_name(used), status);
393 return;
394 }
395 n = (nio + nmem) / USED_CELL_SIZE;
396 ranges = (pib_ranges_t *)kmem_zalloc(sizeof (pib_ranges_t) * n,
397 KM_SLEEP);
398
399 if (nio != 0) {
400 nrng = isa_used_to_ranges(ISA_ADDR_IO, ioarray, nio, ranges);
401 isa_remove_res_from_pci(ISA_ADDR_IO, ioarray, nio);
402 ddi_prop_free(ioarray);
403 }
404 if (nmem != 0) {
405 nrng += isa_used_to_ranges(ISA_ADDR_MEM, memarray, nmem,
406 ranges + nrng);
407 isa_remove_res_from_pci(ISA_ADDR_MEM, memarray, nmem);
408 ddi_prop_free(memarray);
409 }
410
411 if (!pseudo_isa)
412 (void) ndi_prop_update_int_array(DDI_DEV_T_NONE, dip, "ranges",
413 (int *)ranges, nrng * sizeof (pib_ranges_t) / sizeof (int));
414 kmem_free(ranges, sizeof (pib_ranges_t) * n);
415 }
416
417 /*ARGSUSED*/
418 static int
419 isa_apply_range(dev_info_t *dip, struct regspec *isa_reg_p,
420 pci_regspec_t *pci_reg_p)
421 {
422 pib_ranges_t *ranges, *rng_p;
423 int len, i, offset, nrange;
424
425 if (ddi_getlongprop(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
426 "ranges", (caddr_t)&ranges, &len) != DDI_SUCCESS) {
427 cmn_err(CE_WARN, "Can't get %s ranges property",
428 ddi_get_name(dip));
429 return (DDI_ME_REGSPEC_RANGE);
430 }
431 nrange = len / sizeof (pib_ranges_t);
432 rng_p = ranges;
433 for (i = 0; i < nrange; i++, rng_p++) {
434 /* Check for correct space */
435 if (isa_reg_p->regspec_bustype != rng_p->child_high)
436 continue;
437
438 /* Detect whether request entirely fits within a range */
439 if (isa_reg_p->regspec_addr < rng_p->child_low)
440 continue;
441 if ((isa_reg_p->regspec_addr + isa_reg_p->regspec_size - 1) >
442 (rng_p->child_low + rng_p->size - 1))
443 continue;
444
445 offset = isa_reg_p->regspec_addr - rng_p->child_low;
446
447 pci_reg_p->pci_phys_hi = rng_p->parent_high;
448 pci_reg_p->pci_phys_mid = 0;
449 pci_reg_p->pci_phys_low = rng_p->parent_low + offset;
450 pci_reg_p->pci_size_hi = 0;
451 pci_reg_p->pci_size_low = isa_reg_p->regspec_size;
452
453 break;
454 }
455 kmem_free(ranges, len);
456
457 if (i < nrange)
458 return (DDI_SUCCESS);
459
460 /*
461 * Check extra resource range specially for serial and parallel
462 * devices, which are treated differently from all other ISA
463 * devices. On some machines, serial ports are not enumerated
464 * by ACPI but by BIOS, with io base addresses noted in legacy
465 * BIOS data area. Parallel port on some machines comes with
466 * illegal size.
467 */
468 if (isa_reg_p->regspec_bustype != ISA_ADDR_IO) {
469 cmn_err(CE_WARN, "Bus type not ISA I/O\n");
470 return (DDI_ME_REGSPEC_RANGE);
471 }
472
473 for (i = 0; i < isa_extra_count; i++) {
474 struct regspec *reg_p = &isa_extra_resource[i];
475
476 if (isa_reg_p->regspec_addr < reg_p->regspec_addr)
477 continue;
478 if ((isa_reg_p->regspec_addr + isa_reg_p->regspec_size) >
479 (reg_p->regspec_addr + reg_p->regspec_size))
480 continue;
481
482 pci_reg_p->pci_phys_hi = PCI_ADDR_IO | PCI_REG_REL_M;
483 pci_reg_p->pci_phys_mid = 0;
484 pci_reg_p->pci_phys_low = isa_reg_p->regspec_addr;
485 pci_reg_p->pci_size_hi = 0;
486 pci_reg_p->pci_size_low = isa_reg_p->regspec_size;
487 break;
488 }
489 if (i < isa_extra_count)
490 return (DDI_SUCCESS);
491
492 cmn_err(CE_WARN, "isa_apply_range: Out of range base <0x%x>, size <%d>",
493 isa_reg_p->regspec_addr, isa_reg_p->regspec_size);
494 return (DDI_ME_REGSPEC_RANGE);
495 }
496
497 static int
498 isa_bus_map(dev_info_t *dip, dev_info_t *rdip, ddi_map_req_t *mp,
499 off_t offset, off_t len, caddr_t *vaddrp)
500 {
501 struct regspec tmp_reg, *rp;
502 pci_regspec_t vreg;
503 ddi_map_req_t mr = *mp; /* Get private copy of request */
504 int error;
505
506 if (pseudo_isa)
507 return (i_ddi_bus_map(dip, rdip, mp, offset, len, vaddrp));
508
509 mp = &mr;
510
511 /*
512 * First, if given an rnumber, convert it to a regspec...
513 */
514 if (mp->map_type == DDI_MT_RNUMBER) {
515
516 int rnumber = mp->map_obj.rnumber;
517
518 rp = i_ddi_rnumber_to_regspec(rdip, rnumber);
519 if (rp == (struct regspec *)0)
520 return (DDI_ME_RNUMBER_RANGE);
521
522 /*
523 * Convert the given ddi_map_req_t from rnumber to regspec...
524 */
525 mp->map_type = DDI_MT_REGSPEC;
526 mp->map_obj.rp = rp;
527 }
528
529 /*
530 * Adjust offset and length correspnding to called values...
531 * XXX: A non-zero length means override the one in the regspec.
532 * XXX: (Regardless of what's in the parent's range)
533 */
534
535 tmp_reg = *(mp->map_obj.rp); /* Preserve underlying data */
536 rp = mp->map_obj.rp = &tmp_reg; /* Use tmp_reg in request */
537
538 rp->regspec_addr += (uint_t)offset;
539 if (len != 0)
540 rp->regspec_size = (uint_t)len;
541
542 if ((error = isa_apply_range(dip, rp, &vreg)) != 0)
543 return (error);
544 mp->map_obj.rp = (struct regspec *)&vreg;
545
546 /*
547 * Call my parents bus_map function with modified values...
548 */
549
550 return (ddi_map(dip, mp, (off_t)0, (off_t)0, vaddrp));
551 }
552
553 static int
554 isa_dma_allochdl(dev_info_t *dip, dev_info_t *rdip, ddi_dma_attr_t *dma_attr,
555 int (*waitfp)(caddr_t), caddr_t arg, ddi_dma_handle_t *handlep)
556 {
557 ddi_dma_attr_merge(dma_attr, &ISA_dma_attr);
558 return (ddi_dma_allochdl(dip, rdip, dma_attr, waitfp, arg, handlep));
559 }
560
561 static int
562 isa_dma_mctl(dev_info_t *dip, dev_info_t *rdip,
563 ddi_dma_handle_t handle, enum ddi_dma_ctlops request,
564 off_t *offp, size_t *lenp, caddr_t *objp, uint_t flags)
565 {
566 int rval;
567 int arg = (int)(uintptr_t)objp;
568
569 switch (request) {
570
571 case DDI_DMA_E_PROG:
572 return (i_dmae_prog(rdip, (struct ddi_dmae_req *)offp,
573 (ddi_dma_cookie_t *)lenp, arg));
574
575 case DDI_DMA_E_ACQUIRE:
576 return (i_dmae_acquire(rdip, arg, (int(*)(caddr_t))offp,
577 (caddr_t)lenp));
578
579 case DDI_DMA_E_FREE:
580 return (i_dmae_free(rdip, arg));
581
582 case DDI_DMA_E_STOP:
583 i_dmae_stop(rdip, arg);
584 return (DDI_SUCCESS);
585
586 case DDI_DMA_E_ENABLE:
587 i_dmae_enable(rdip, arg);
588 return (DDI_SUCCESS);
589
590 case DDI_DMA_E_DISABLE:
591 i_dmae_disable(rdip, arg);
592 return (DDI_SUCCESS);
593
594 case DDI_DMA_E_GETCNT:
595 i_dmae_get_chan_stat(rdip, arg, NULL, (int *)lenp);
596 return (DDI_SUCCESS);
597
598 case DDI_DMA_E_SWSETUP:
599 return (i_dmae_swsetup(rdip, (struct ddi_dmae_req *)offp,
600 (ddi_dma_cookie_t *)lenp, arg));
601
602 case DDI_DMA_E_SWSTART:
603 i_dmae_swstart(rdip, arg);
604 return (DDI_SUCCESS);
605
606 case DDI_DMA_E_GETATTR:
607 bcopy(&ISA_dma_attr, objp, sizeof (ddi_dma_attr_t));
608 return (DDI_SUCCESS);
609
610 case DDI_DMA_E_1STPTY:
611 {
612 struct ddi_dmae_req req1stpty =
613 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
614 if (arg == 0) {
615 req1stpty.der_command = DMAE_CMD_TRAN;
616 req1stpty.der_trans = DMAE_TRANS_DMND;
617 } else {
618 req1stpty.der_trans = DMAE_TRANS_CSCD;
619 }
620 return (i_dmae_prog(rdip, &req1stpty, NULL, arg));
621 }
622
623 default:
624 /*
625 * We pass to rootnex, but it turns out that rootnex will just
626 * return failure, as we don't use ddi_dma_mctl() except
627 * for DMA engine (ISA) and DVMA (SPARC). Arguably we could
628 * just return an error direclty here, instead.
629 */
630 rval = ddi_dma_mctl(dip, rdip, handle, request, offp,
631 lenp, objp, flags);
632 }
633 return (rval);
634 }
635
636 /*
637 * Check if driver should be treated as an old pre 2.6 driver
638 */
639 static int
640 old_driver(dev_info_t *dip)
641 {
642 extern int ignore_hardware_nodes; /* force flag from ddi_impl.c */
643
644 if (ndi_dev_is_persistent_node(dip)) {
645 if (ignore_hardware_nodes)
646 return (1);
647 if (ddi_getprop(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
648 "ignore-hardware-nodes", -1) != -1)
649 return (1);
650 }
651 return (0);
652 }
653
654 typedef struct {
655 uint32_t phys_hi;
656 uint32_t phys_lo;
657 uint32_t size;
658 } isa_regs_t;
659
660 /*
661 * Return non-zero if device in tree is a PnP isa device
662 */
663 static int
664 is_pnpisa(dev_info_t *dip)
665 {
666 isa_regs_t *isa_regs;
667 int proplen, pnpisa;
668
669 if (ddi_getlongprop(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, "reg",
670 (caddr_t)&isa_regs, &proplen) != DDI_PROP_SUCCESS) {
671 return (0);
672 }
673 pnpisa = isa_regs[0].phys_hi & 0x80000000;
674 /*
675 * free the memory allocated by ddi_getlongprop().
676 */
677 kmem_free(isa_regs, proplen);
678 if (pnpisa)
679 return (1);
680 else
681 return (0);
682 }
683
684 /*ARGSUSED*/
685 static int
686 isa_ctlops(dev_info_t *dip, dev_info_t *rdip,
687 ddi_ctl_enum_t ctlop, void *arg, void *result)
688 {
689 int rn;
690 struct ddi_parent_private_data *pdp;
691
692 switch (ctlop) {
693 case DDI_CTLOPS_REPORTDEV:
694 if (rdip == (dev_info_t *)0)
695 return (DDI_FAILURE);
696 cmn_err(CE_CONT, "?ISA-device: %s%d\n",
697 ddi_driver_name(rdip), ddi_get_instance(rdip));
698 return (DDI_SUCCESS);
699
700 case DDI_CTLOPS_INITCHILD:
701 /*
702 * older drivers aren't expecting the "standard" device
703 * node format used by the hardware nodes. these drivers
704 * only expect their own properties set in their driver.conf
705 * files. so they tell us not to call them with hardware
706 * nodes by setting the property "ignore-hardware-nodes".
707 */
708 if (old_driver((dev_info_t *)arg)) {
709 return (DDI_NOT_WELL_FORMED);
710 }
711
712 return (isa_initchild((dev_info_t *)arg));
713
714 case DDI_CTLOPS_UNINITCHILD:
715 impl_ddi_sunbus_removechild((dev_info_t *)arg);
716 return (DDI_SUCCESS);
717
718 case DDI_CTLOPS_SIDDEV:
719 if (ndi_dev_is_persistent_node(rdip))
720 return (DDI_SUCCESS);
721 /*
722 * All ISA devices need to do confirming probes
723 * unless they are PnP ISA.
724 */
725 if (is_pnpisa(rdip))
726 return (DDI_SUCCESS);
727 else
728 return (DDI_FAILURE);
729
730 case DDI_CTLOPS_REGSIZE:
731 case DDI_CTLOPS_NREGS:
732 if (rdip == (dev_info_t *)0)
733 return (DDI_FAILURE);
734
735 if ((pdp = ddi_get_parent_data(rdip)) == NULL)
736 return (DDI_FAILURE);
737
738 if (ctlop == DDI_CTLOPS_NREGS) {
739 *(int *)result = pdp->par_nreg;
740 } else {
741 rn = *(int *)arg;
742 if (rn >= pdp->par_nreg)
743 return (DDI_FAILURE);
744 *(off_t *)result = (off_t)pdp->par_reg[rn].regspec_size;
745 }
746 return (DDI_SUCCESS);
747
748 case DDI_CTLOPS_ATTACH:
749 case DDI_CTLOPS_DETACH:
750 case DDI_CTLOPS_PEEK:
751 case DDI_CTLOPS_POKE:
752 return (DDI_FAILURE);
753
754 default:
755 return (ddi_ctlops(dip, rdip, ctlop, arg, result));
756 }
757 }
758
759 static struct intrspec *
760 isa_get_ispec(dev_info_t *rdip, int inum)
761 {
762 struct ddi_parent_private_data *pdp = ddi_get_parent_data(rdip);
763
764 /* Validate the interrupt number */
765 if (inum >= pdp->par_nintr)
766 return (NULL);
767
768 /* Get the interrupt structure pointer and return that */
769 return ((struct intrspec *)&pdp->par_intr[inum]);
770 }
771
772 static int
773 isa_intr_ops(dev_info_t *pdip, dev_info_t *rdip, ddi_intr_op_t intr_op,
774 ddi_intr_handle_impl_t *hdlp, void *result)
775 {
776 struct intrspec *ispec;
777 #if defined(__xpv)
778 int cons, ttyn;
779
780 cons = console_hypervisor_dev_type(&ttyn);
781 #endif
782 if (pseudo_isa)
783 return (i_ddi_intr_ops(pdip, rdip, intr_op, hdlp, result));
784
785
786 /* Process the interrupt operation */
787 switch (intr_op) {
788 case DDI_INTROP_GETCAP:
789 /* First check with pcplusmp */
790 if (psm_intr_ops == NULL)
791 return (DDI_FAILURE);
792
793 if ((*psm_intr_ops)(rdip, hdlp, PSM_INTR_OP_GET_CAP, result)) {
794 *(int *)result = 0;
795 return (DDI_FAILURE);
796 }
797 break;
798 case DDI_INTROP_SETCAP:
799 if (psm_intr_ops == NULL)
800 return (DDI_FAILURE);
801
802 if ((*psm_intr_ops)(rdip, hdlp, PSM_INTR_OP_SET_CAP, result))
803 return (DDI_FAILURE);
804 break;
805 case DDI_INTROP_ALLOC:
806 ASSERT(hdlp->ih_type == DDI_INTR_TYPE_FIXED);
807 return (isa_alloc_intr_fixed(rdip, hdlp, result));
808 case DDI_INTROP_FREE:
809 ASSERT(hdlp->ih_type == DDI_INTR_TYPE_FIXED);
810 return (isa_free_intr_fixed(rdip, hdlp));
811 case DDI_INTROP_GETPRI:
812 if ((ispec = isa_get_ispec(rdip, hdlp->ih_inum)) == NULL)
813 return (DDI_FAILURE);
814 *(int *)result = ispec->intrspec_pri;
815 break;
816 case DDI_INTROP_SETPRI:
817 /* Validate the interrupt priority passed to us */
818 if (*(int *)result > LOCK_LEVEL)
819 return (DDI_FAILURE);
820
821 /* Ensure that PSM is all initialized and ispec is ok */
822 if ((psm_intr_ops == NULL) ||
823 ((ispec = isa_get_ispec(rdip, hdlp->ih_inum)) == NULL))
824 return (DDI_FAILURE);
825
826 /* update the ispec with the new priority */
827 ispec->intrspec_pri = *(int *)result;
828 break;
829 case DDI_INTROP_ADDISR:
830 if ((ispec = isa_get_ispec(rdip, hdlp->ih_inum)) == NULL)
831 return (DDI_FAILURE);
832 ispec->intrspec_func = hdlp->ih_cb_func;
833 break;
834 case DDI_INTROP_REMISR:
835 if (hdlp->ih_type != DDI_INTR_TYPE_FIXED)
836 return (DDI_FAILURE);
837 if ((ispec = isa_get_ispec(rdip, hdlp->ih_inum)) == NULL)
838 return (DDI_FAILURE);
839 ispec->intrspec_func = (uint_t (*)()) 0;
840 break;
841 case DDI_INTROP_ENABLE:
842 if ((ispec = isa_get_ispec(rdip, hdlp->ih_inum)) == NULL)
843 return (DDI_FAILURE);
844
845 /* Call psmi to translate irq with the dip */
846 if (psm_intr_ops == NULL)
847 return (DDI_FAILURE);
848
849 #if defined(__xpv)
850 /*
851 * if the hypervisor is using an isa serial port for the
852 * console, make sure we don't try to use that interrupt as
853 * it will cause us to panic when xen_bind_pirq() fails.
854 */
855 if (cons == CONS_TTY && ispec->intrspec_vec == asy_intrs[ttyn])
856 return (DDI_FAILURE);
857 #endif
858 ((ihdl_plat_t *)hdlp->ih_private)->ip_ispecp = ispec;
859 if ((*psm_intr_ops)(rdip, hdlp, PSM_INTR_OP_XLATE_VECTOR,
860 (int *)&hdlp->ih_vector) == PSM_FAILURE)
861 return (DDI_FAILURE);
862
863 /* Add the interrupt handler */
864 if (!add_avintr((void *)hdlp, ispec->intrspec_pri,
865 hdlp->ih_cb_func, DEVI(rdip)->devi_name, hdlp->ih_vector,
866 hdlp->ih_cb_arg1, hdlp->ih_cb_arg2, NULL, rdip))
867 return (DDI_FAILURE);
868 break;
869 case DDI_INTROP_DISABLE:
870 if ((ispec = isa_get_ispec(rdip, hdlp->ih_inum)) == NULL)
871 return (DDI_FAILURE);
872
873 /* Call psm_ops() to translate irq with the dip */
874 if (psm_intr_ops == NULL)
875 return (DDI_FAILURE);
876
877 ((ihdl_plat_t *)hdlp->ih_private)->ip_ispecp = ispec;
878 (void) (*psm_intr_ops)(rdip, hdlp,
879 PSM_INTR_OP_XLATE_VECTOR, (int *)&hdlp->ih_vector);
880
881 /* Remove the interrupt handler */
882 rem_avintr((void *)hdlp, ispec->intrspec_pri,
883 hdlp->ih_cb_func, hdlp->ih_vector);
884 break;
885 case DDI_INTROP_SETMASK:
886 if (psm_intr_ops == NULL)
887 return (DDI_FAILURE);
888
889 if ((*psm_intr_ops)(rdip, hdlp, PSM_INTR_OP_SET_MASK, NULL))
890 return (DDI_FAILURE);
891 break;
892 case DDI_INTROP_CLRMASK:
893 if (psm_intr_ops == NULL)
894 return (DDI_FAILURE);
895
896 if ((*psm_intr_ops)(rdip, hdlp, PSM_INTR_OP_CLEAR_MASK, NULL))
897 return (DDI_FAILURE);
898 break;
899 case DDI_INTROP_GETPENDING:
900 if (psm_intr_ops == NULL)
901 return (DDI_FAILURE);
902
903 if ((*psm_intr_ops)(rdip, hdlp, PSM_INTR_OP_GET_PENDING,
904 result)) {
905 *(int *)result = 0;
906 return (DDI_FAILURE);
907 }
908 break;
909 case DDI_INTROP_NAVAIL:
910 case DDI_INTROP_NINTRS:
911 *(int *)result = i_ddi_get_intx_nintrs(rdip);
912 if (*(int *)result == 0) {
913 return (DDI_FAILURE);
914 }
915 break;
916 case DDI_INTROP_SUPPORTED_TYPES:
917 *(int *)result = DDI_INTR_TYPE_FIXED; /* Always ... */
918 break;
919 default:
920 return (DDI_FAILURE);
921 }
922
923 return (DDI_SUCCESS);
924 }
925
926 /*
927 * Allocate interrupt vector for FIXED (legacy) type.
928 */
929 static int
930 isa_alloc_intr_fixed(dev_info_t *rdip, ddi_intr_handle_impl_t *hdlp,
931 void *result)
932 {
933 struct intrspec *ispec;
934 ddi_intr_handle_impl_t info_hdl;
935 int ret;
936 int free_phdl = 0;
937 apic_get_type_t type_info;
938
939 if (psm_intr_ops == NULL)
940 return (DDI_FAILURE);
941
942 if ((ispec = isa_get_ispec(rdip, hdlp->ih_inum)) == NULL)
943 return (DDI_FAILURE);
944
945 /*
946 * If the PSM module is "APIX" then pass the request for it
947 * to allocate the vector now.
948 */
949 bzero(&info_hdl, sizeof (ddi_intr_handle_impl_t));
950 info_hdl.ih_private = &type_info;
951 if ((*psm_intr_ops)(NULL, &info_hdl, PSM_INTR_OP_APIC_TYPE, NULL) ==
952 PSM_SUCCESS && strcmp(type_info.avgi_type, APIC_APIX_NAME) == 0) {
953 if (hdlp->ih_private == NULL) { /* allocate phdl structure */
954 free_phdl = 1;
955 i_ddi_alloc_intr_phdl(hdlp);
956 }
957 ((ihdl_plat_t *)hdlp->ih_private)->ip_ispecp = ispec;
958 ret = (*psm_intr_ops)(rdip, hdlp,
959 PSM_INTR_OP_ALLOC_VECTORS, result);
960 if (free_phdl) { /* free up the phdl structure */
961 free_phdl = 0;
962 i_ddi_free_intr_phdl(hdlp);
963 hdlp->ih_private = NULL;
964 }
965 } else {
966 /*
967 * No APIX module; fall back to the old scheme where the
968 * interrupt vector is allocated during ddi_enable_intr() call.
969 */
970 hdlp->ih_pri = ispec->intrspec_pri;
971 *(int *)result = hdlp->ih_scratch1;
972 ret = DDI_SUCCESS;
973 }
974
975 return (ret);
976 }
977
978 /*
979 * Free up interrupt vector for FIXED (legacy) type.
980 */
981 static int
982 isa_free_intr_fixed(dev_info_t *rdip, ddi_intr_handle_impl_t *hdlp)
983 {
984 struct intrspec *ispec;
985 ddi_intr_handle_impl_t info_hdl;
986 int ret;
987 apic_get_type_t type_info;
988
989 if (psm_intr_ops == NULL)
990 return (DDI_FAILURE);
991
992 /*
993 * If the PSM module is "APIX" then pass the request for it
994 * to free up the vector now.
995 */
996 bzero(&info_hdl, sizeof (ddi_intr_handle_impl_t));
997 info_hdl.ih_private = &type_info;
998 if ((*psm_intr_ops)(NULL, &info_hdl, PSM_INTR_OP_APIC_TYPE, NULL) ==
999 PSM_SUCCESS && strcmp(type_info.avgi_type, APIC_APIX_NAME) == 0) {
1000 if ((ispec = isa_get_ispec(rdip, hdlp->ih_inum)) == NULL)
1001 return (DDI_FAILURE);
1002 ((ihdl_plat_t *)hdlp->ih_private)->ip_ispecp = ispec;
1003 ret = (*psm_intr_ops)(rdip, hdlp,
1004 PSM_INTR_OP_FREE_VECTORS, NULL);
1005 } else {
1006 /*
1007 * No APIX module; fall back to the old scheme where
1008 * the interrupt vector was already freed during
1009 * ddi_disable_intr() call.
1010 */
1011 ret = DDI_SUCCESS;
1012 }
1013
1014 return (ret);
1015 }
1016
1017 static void
1018 isa_vendor(uint32_t id, char *vendor)
1019 {
1020 vendor[0] = '@' + ((id >> 26) & 0x1f);
1021 vendor[1] = '@' + ((id >> 21) & 0x1f);
1022 vendor[2] = '@' + ((id >> 16) & 0x1f);
1023 vendor[3] = 0;
1024 }
1025
1026 /*
1027 * Name a child
1028 */
1029 static int
1030 isa_name_child(dev_info_t *child, char *name, int namelen)
1031 {
1032 char vendor[8];
1033 int device;
1034 uint32_t serial;
1035 int func;
1036 int bustype;
1037 uint32_t base;
1038 int proplen;
1039 int pnpisa = 0;
1040 isa_regs_t *isa_regs;
1041
1042 void make_ddi_ppd(dev_info_t *, struct ddi_parent_private_data **);
1043
1044 /*
1045 * older drivers aren't expecting the "standard" device
1046 * node format used by the hardware nodes. these drivers
1047 * only expect their own properties set in their driver.conf
1048 * files. so they tell us not to call them with hardware
1049 * nodes by setting the property "ignore-hardware-nodes".
1050 */
1051 if (old_driver(child))
1052 return (DDI_FAILURE);
1053
1054 /*
1055 * Fill in parent-private data
1056 */
1057 if (ddi_get_parent_data(child) == NULL) {
1058 struct ddi_parent_private_data *pdptr;
1059 make_ddi_ppd(child, &pdptr);
1060 ddi_set_parent_data(child, pdptr);
1061 }
1062
1063 if (ndi_dev_is_persistent_node(child) == 0) {
1064 /*
1065 * For .conf nodes, generate name from parent private data
1066 */
1067 name[0] = '\0';
1068 if (sparc_pd_getnreg(child) > 0) {
1069 (void) snprintf(name, namelen, "%x,%x",
1070 (uint_t)sparc_pd_getreg(child, 0)->regspec_bustype,
1071 (uint_t)sparc_pd_getreg(child, 0)->regspec_addr);
1072 }
1073 return (DDI_SUCCESS);
1074 }
1075
1076 /*
1077 * For hw nodes, look up "reg" property
1078 */
1079 if (ddi_getlongprop(DDI_DEV_T_ANY, child, DDI_PROP_DONTPASS, "reg",
1080 (caddr_t)&isa_regs, &proplen) != DDI_PROP_SUCCESS) {
1081 return (DDI_FAILURE);
1082 }
1083
1084 /*
1085 * extract the device identifications
1086 */
1087 pnpisa = isa_regs[0].phys_hi & 0x80000000;
1088 if (pnpisa) {
1089 isa_vendor(isa_regs[0].phys_hi, vendor);
1090 device = isa_regs[0].phys_hi & 0xffff;
1091 serial = isa_regs[0].phys_lo;
1092 func = (isa_regs[0].size >> 24) & 0xff;
1093 if (func != 0)
1094 (void) snprintf(name, namelen, "pnp%s,%04x,%x,%x",
1095 vendor, device, serial, func);
1096 else
1097 (void) snprintf(name, namelen, "pnp%s,%04x,%x",
1098 vendor, device, serial);
1099 } else {
1100 bustype = isa_regs[0].phys_hi;
1101 base = isa_regs[0].phys_lo;
1102 (void) sprintf(name, "%x,%x", bustype, base);
1103 }
1104
1105 /*
1106 * free the memory allocated by ddi_getlongprop().
1107 */
1108 kmem_free(isa_regs, proplen);
1109
1110 return (DDI_SUCCESS);
1111 }
1112
1113 static int
1114 isa_initchild(dev_info_t *child)
1115 {
1116 char name[80];
1117
1118 if (isa_name_child(child, name, 80) != DDI_SUCCESS)
1119 return (DDI_FAILURE);
1120 ddi_set_name_addr(child, name);
1121
1122 if (ndi_dev_is_persistent_node(child) != 0)
1123 return (DDI_SUCCESS);
1124
1125 /*
1126 * This is a .conf node, try merge properties onto a
1127 * hw node with the same name.
1128 */
1129 if (ndi_merge_node(child, isa_name_child) == DDI_SUCCESS) {
1130 /*
1131 * Return failure to remove node
1132 */
1133 impl_ddi_sunbus_removechild(child);
1134 return (DDI_FAILURE);
1135 }
1136 /*
1137 * Cannot merge node, permit pseudo children
1138 */
1139 return (DDI_SUCCESS);
1140 }
1141
1142 /*
1143 * called when ACPI enumeration is not used
1144 */
1145 static void
1146 add_known_used_resources(void)
1147 {
1148 /* needs to be in increasing order */
1149 int intr[] = {0x1, 0x3, 0x4, 0x6, 0x7, 0xc};
1150 int dma[] = {0x2};
1151 int io[] = {0x60, 0x1, 0x64, 0x1, 0x2f8, 0x8, 0x378, 0x8, 0x3f0, 0x10,
1152 0x778, 0x4};
1153 dev_info_t *usedrdip;
1154
1155 usedrdip = ddi_find_devinfo(USED_RESOURCES, -1, 0);
1156
1157 if (usedrdip == NULL) {
1158 (void) ndi_devi_alloc_sleep(ddi_root_node(), USED_RESOURCES,
1159 (pnode_t)DEVI_SID_NODEID, &usedrdip);
1160 }
1161
1162 (void) ndi_prop_update_int_array(DDI_DEV_T_NONE, usedrdip,
1163 "interrupts", (int *)intr, (int)(sizeof (intr) / sizeof (int)));
1164 (void) ndi_prop_update_int_array(DDI_DEV_T_NONE, usedrdip,
1165 "io-space", (int *)io, (int)(sizeof (io) / sizeof (int)));
1166 (void) ndi_prop_update_int_array(DDI_DEV_T_NONE, usedrdip,
1167 "dma-channels", (int *)dma, (int)(sizeof (dma) / sizeof (int)));
1168 (void) ndi_devi_bind_driver(usedrdip, 0);
1169
1170 }
1171
1172 /*
1173 * Return non-zero if UART device exists.
1174 */
1175 static int
1176 uart_exists(ushort_t port)
1177 {
1178 outb(port + COM_SCR, (char)0x5a);
1179 outb(port + COM_ISR, (char)0x00);
1180 return (inb(port + COM_SCR) == (char)0x5a);
1181 }
1182
1183 static void
1184 isa_enumerate(int reprogram)
1185 {
1186 int circ, i;
1187 dev_info_t *xdip;
1188 dev_info_t *isa_dip = ddi_find_devinfo("isa", -1, 0);
1189
1190 struct regspec i8042_regs[] = {
1191 {1, 0x60, 0x1},
1192 {1, 0x64, 0x1}
1193 };
1194 int i8042_intrs[] = {0x1, 0xc};
1195 char *acpi_prop;
1196 int acpi_enum = 1; /* ACPI is default to be on */
1197 #if defined(__xpv)
1198 int cons, ttyn;
1199
1200 cons = console_hypervisor_dev_type(&ttyn);
1201 #endif
1202 if (reprogram || !isa_dip)
1203 return;
1204
1205 bzero(isa_extra_resource, MAX_EXTRA_RESOURCE * sizeof (struct regspec));
1206
1207 ndi_devi_enter(isa_dip, &circ);
1208
1209 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(),
1210 DDI_PROP_DONTPASS, "acpi-enum", &acpi_prop) == DDI_PROP_SUCCESS) {
1211 acpi_enum = strcmp("off", acpi_prop);
1212 ddi_prop_free(acpi_prop);
1213 }
1214
1215 if (acpi_enum) {
1216 if (acpi_isa_device_enum(isa_dip)) {
1217 ndi_devi_exit(isa_dip, circ);
1218 if (isa_resource_setup() != NDI_SUCCESS) {
1219 cmn_err(CE_WARN, "isa nexus: isa "
1220 "resource setup failed");
1221 }
1222
1223 /* serial ports? */
1224 enumerate_BIOS_serial(isa_dip);
1225
1226 /* adjust parallel port size */
1227 adjust_prtsz(isa_dip);
1228
1229 isa_create_ranges_prop(isa_dip);
1230 return;
1231 }
1232 cmn_err(CE_NOTE, "!Solaris did not detect ACPI BIOS");
1233 }
1234 cmn_err(CE_NOTE, "!ACPI is off");
1235
1236 /* serial ports */
1237 for (i = 0; i < min_BIOS_serial; i++) {
1238 ushort_t addr = asy_regs[i].regspec_addr;
1239 if (!uart_exists(addr))
1240 continue;
1241 #if defined(__xpv)
1242 if (cons == CONS_TTY && ttyn == i)
1243 continue;
1244 #endif
1245 ndi_devi_alloc_sleep(isa_dip, "asy",
1246 (pnode_t)DEVI_SID_NODEID, &xdip);
1247 (void) ndi_prop_update_string(DDI_DEV_T_NONE, xdip,
1248 "compatible", "PNP0500");
1249 /* This should be gotten from master file: */
1250 (void) ndi_prop_update_string(DDI_DEV_T_NONE, xdip,
1251 "model", "Standard PC COM port");
1252 (void) ndi_prop_update_int_array(DDI_DEV_T_NONE, xdip,
1253 "reg", (int *)&asy_regs[i], 3);
1254 (void) ndi_prop_update_int(DDI_DEV_T_NONE, xdip,
1255 "interrupts", asy_intrs[i]);
1256 (void) ndi_devi_bind_driver(xdip, 0);
1257 /* Adjusting isa_extra here causes a kernel dump later. */
1258 }
1259
1260 /* i8042 node */
1261 ndi_devi_alloc_sleep(isa_dip, "i8042",
1262 (pnode_t)DEVI_SID_NODEID, &xdip);
1263 (void) ndi_prop_update_int_array(DDI_DEV_T_NONE, xdip,
1264 "reg", (int *)i8042_regs, 6);
1265 (void) ndi_prop_update_int_array(DDI_DEV_T_NONE, xdip,
1266 "interrupts", (int *)i8042_intrs, 2);
1267 (void) ndi_prop_update_string(DDI_DEV_T_NONE, xdip,
1268 "unit-address", "1,60");
1269 (void) ndi_devi_bind_driver(xdip, 0);
1270
1271 add_known_used_resources();
1272
1273 ndi_devi_exit(isa_dip, circ);
1274
1275 isa_create_ranges_prop(isa_dip);
1276 }
1277
1278 /*
1279 * On some machines, serial port 2 isn't listed in the ACPI table.
1280 * This function goes through the base I/O addresses and makes sure all
1281 * the serial ports there are in the dev_info tree. If any are missing,
1282 * this function will add them.
1283 */
1284
1285 static void
1286 enumerate_BIOS_serial(dev_info_t *isa_dip)
1287 {
1288 int i;
1289 dev_info_t *xdip;
1290 int found;
1291 int ret;
1292 struct regspec *tmpregs;
1293 int tmpregs_len;
1294 #if defined(__xpv)
1295 int cons, ttyn;
1296
1297 cons = console_hypervisor_dev_type(&ttyn);
1298 #endif
1299
1300 /*
1301 * Scan the base I/O addresses of the first four serial ports.
1302 */
1303 for (i = 0; i < num_BIOS_serial; i++) {
1304 ushort_t addr = asy_regs[i].regspec_addr;
1305
1306 /* Look for it in the dev_info tree */
1307 found = 0;
1308 for (xdip = ddi_get_child(isa_dip); xdip != NULL;
1309 xdip = ddi_get_next_sibling(xdip)) {
1310 if (strncmp(ddi_node_name(xdip), "asy", 3) != 0) {
1311 /* skip non asy */
1312 continue;
1313 }
1314
1315 /* Match by addr */
1316 ret = ddi_prop_lookup_int_array(DDI_DEV_T_ANY, xdip,
1317 DDI_PROP_DONTPASS, "reg", (int **)&tmpregs,
1318 (uint_t *)&tmpregs_len);
1319 if (ret != DDI_PROP_SUCCESS) {
1320 /* error */
1321 continue;
1322 }
1323
1324 if (tmpregs->regspec_addr == addr)
1325 found = 1;
1326
1327 /*
1328 * Free the memory allocated by
1329 * ddi_prop_lookup_int_array().
1330 */
1331 ddi_prop_free(tmpregs);
1332
1333 if (found) {
1334 if (asy_intr_override & 1<<i) {
1335 (void) ndi_prop_update_int(
1336 DDI_DEV_T_NONE, xdip,
1337 "interrupts", asy_intrs[i]);
1338 }
1339
1340 break;
1341 }
1342 }
1343
1344 /* If not found, then add it */
1345 if (!found && uart_exists(addr)) {
1346 ndi_devi_alloc_sleep(isa_dip, "asy",
1347 (pnode_t)DEVI_SID_NODEID, &xdip);
1348 (void) ndi_prop_update_string(DDI_DEV_T_NONE, xdip,
1349 "compatible", "PNP0500");
1350 /* This should be gotten from master file: */
1351 (void) ndi_prop_update_string(DDI_DEV_T_NONE, xdip,
1352 "model", "Standard PC COM port");
1353 (void) ndi_prop_update_int_array(DDI_DEV_T_NONE, xdip,
1354 "reg", (int *)&asy_regs[i], 3);
1355 (void) ndi_prop_update_int(DDI_DEV_T_NONE, xdip,
1356 "interrupts", asy_intrs[i]);
1357 (void) ndi_devi_bind_driver(xdip, 0);
1358
1359 ASSERT(isa_extra_count < MAX_EXTRA_RESOURCE);
1360 bcopy(&asy_regs[i],
1361 isa_extra_resource + isa_extra_count,
1362 sizeof (struct regspec));
1363 isa_extra_count++;
1364 }
1365 }
1366
1367 /*
1368 * An asy node may have been attached via ACPI enumeration, or
1369 * directly from this file. Check each serial port to see if it
1370 * is in use by the hypervisor. If it is in use, then remove
1371 * the node from the device tree.
1372 */
1373 #if defined(__xpv)
1374 i = 0;
1375
1376 for (xdip = ddi_get_child(isa_dip); xdip != NULL; ) {
1377 dev_info_t *curdip;
1378
1379 curdip = xdip;
1380 xdip = ddi_get_next_sibling(xdip);
1381
1382 if (strncmp(ddi_node_name(curdip), "asy", 3) != 0)
1383 continue;
1384
1385 if (cons == CONS_TTY && ttyn == i) {
1386 ret = ndi_devi_free(curdip);
1387 if (ret != DDI_SUCCESS) {
1388 cmn_err(CE_WARN,
1389 "could not remove asy%d node", i);
1390 }
1391
1392 cmn_err(CE_NOTE, "!asy%d unavailable, reserved"
1393 " to hypervisor", i);
1394 }
1395
1396 i++;
1397 }
1398 #endif
1399
1400 }
1401
1402 /*
1403 * Some machine comes with an illegal parallel port size of 3
1404 * bytes in ACPI, even parallel port mode is ECP.
1405 */
1406 #define DEFAULT_PRT_SIZE 8
1407 static void
1408 adjust_prtsz(dev_info_t *isa_dip)
1409 {
1410 dev_info_t *cdip;
1411 struct regspec *regs_p, *extreg_p;
1412 int regs_len, nreg, i;
1413 char *name;
1414
1415 for (cdip = ddi_get_child(isa_dip); cdip != NULL;
1416 cdip = ddi_get_next_sibling(cdip)) {
1417 name = ddi_node_name(cdip);
1418 if ((strncmp(name, "lp", 2) != 0) || (strnlen(name, 3) != 2))
1419 continue; /* skip non parallel */
1420
1421 if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, cdip,
1422 DDI_PROP_DONTPASS, "reg", (int **)®s_p,
1423 (uint_t *)®s_len) != DDI_PROP_SUCCESS)
1424 continue;
1425
1426 nreg = regs_len / (sizeof (struct regspec) / sizeof (int));
1427 for (i = 0; i < nreg; i++) {
1428 if (regs_p[i].regspec_size == DEFAULT_PRT_SIZE)
1429 continue;
1430
1431 ASSERT(isa_extra_count < MAX_EXTRA_RESOURCE);
1432 extreg_p = &isa_extra_resource[isa_extra_count++];
1433 extreg_p->regspec_bustype = ISA_ADDR_IO;
1434 extreg_p->regspec_addr = regs_p[i].regspec_addr;
1435 extreg_p->regspec_size = DEFAULT_PRT_SIZE;
1436 }
1437
1438 ddi_prop_free(regs_p);
1439 }
1440 }