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--- old/usr/src/uts/common/io/power.c
+++ new/usr/src/uts/common/io/power.c
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21 /*
22 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23 23 * Use is subject to license terms.
24 24 * Copyright 2011 Joyent, Inc. All rights reserved.
25 25 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
26 26 */
27 27
28 28 /*
29 29 * Power Button Driver
30 30 *
31 31 * This driver handles interrupt generated by the power button on
32 32 * platforms with "power" device node which has "button" property.
33 33 * Currently, these platforms are:
34 34 *
35 35 * ACPI-enabled x86/x64 platforms
36 36 * Ultra-5_10, Ultra-80, Sun-Blade-100, Sun-Blade-150,
37 37 * Sun-Blade-1500, Sun-Blade-2500,
38 38 * Sun-Fire-V210, Sun-Fire-V240, Netra-240
39 39 *
40 40 * Only one instance is allowed to attach. In order to know when
41 41 * an application that has opened the device is going away, a new
42 42 * minor clone is created for each open(9E) request. There are
43 43 * allocations for creating minor clones between 1 and 255. The ioctl
44 44 * interface is defined by pbio(7I) and approved as part of
45 45 * PSARC/1999/393 case.
46 46 */
47 47
48 48 #include <sys/types.h>
49 49 #include <sys/conf.h>
50 50 #include <sys/ddi.h>
51 51 #include <sys/sunddi.h>
52 52 #include <sys/ddi_impldefs.h>
53 53 #include <sys/cmn_err.h>
54 54 #include <sys/errno.h>
55 55 #include <sys/modctl.h>
56 56 #include <sys/open.h>
57 57 #include <sys/stat.h>
58 58 #include <sys/poll.h>
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59 59 #include <sys/pbio.h>
60 60 #include <sys/sysevent/eventdefs.h>
61 61 #include <sys/sysevent/pwrctl.h>
62 62
63 63 #if defined(__sparc)
64 64 #include <sys/machsystm.h>
65 65 #endif
66 66
67 67 #ifdef ACPI_POWER_BUTTON
68 68
69 -#include <sys/acpi/acpi.h>
69 +#include <acpica/include/acpi.h>
70 70 #include <sys/acpica.h>
71 71
72 72 #else
73 73
74 74 #include <sys/epic.h>
75 75 /*
76 76 * Some #defs that must be here as they differ for power.c
77 77 * and epic.c
78 78 */
79 79 #define EPIC_REGS_OFFSET 0x00
80 80 #define EPIC_REGS_LEN 0x82
81 81
82 82
83 83 /*
84 84 * This flag, which is set for platforms, that have EPIC processor
85 85 * to process power button interrupt, helps in executing platform
86 86 * specific code.
87 87 */
88 88 static char hasEPIC = B_FALSE;
89 89 #endif /* ACPI_POWER_BUTTON */
90 90
91 91 /*
92 92 * Maximum number of clone minors that is allowed. This value
93 93 * is defined relatively low to save memory.
94 94 */
95 95 #define POWER_MAX_CLONE 256
96 96
97 97 /*
98 98 * Minor number is instance << 8 + clone minor from range 1-255; clone 0
99 99 * is reserved for "original" minor.
100 100 */
101 101 #define POWER_MINOR_TO_CLONE(minor) ((minor) & (POWER_MAX_CLONE - 1))
102 102
103 103 /*
104 104 * Power Button Abort Delay
105 105 */
106 106 #define ABORT_INCREMENT_DELAY 10
107 107
108 108 /*
109 109 * FWARC 2005/687: power device compatible property
110 110 */
111 111 #define POWER_DEVICE_TYPE "power-device-type"
112 112
113 113 /*
114 114 * Driver global variables
115 115 */
116 116 static void *power_state;
117 117 static int power_inst = -1;
118 118
119 119 static hrtime_t power_button_debounce = NANOSEC/MILLISEC*10;
120 120 static hrtime_t power_button_abort_interval = 1.5 * NANOSEC;
121 121 static int power_button_abort_presses = 3;
122 122 static int power_button_abort_enable = 1;
123 123 static int power_button_enable = 1;
124 124
125 125 static int power_button_pressed = 0;
126 126 static int power_button_cancel = 0;
127 127 static int power_button_timeouts = 0;
128 128 static int timeout_cancel = 0;
129 129 static int additional_presses = 0;
130 130
131 131 /*
132 132 * Function prototypes
133 133 */
134 134 static int power_attach(dev_info_t *, ddi_attach_cmd_t);
135 135 static int power_detach(dev_info_t *, ddi_detach_cmd_t);
136 136 static int power_getinfo(dev_info_t *, ddi_info_cmd_t, void *, void **);
137 137 static int power_open(dev_t *, int, int, cred_t *);
138 138 static int power_close(dev_t, int, int, cred_t *);
139 139 static int power_ioctl(dev_t, int, intptr_t, int, cred_t *, int *);
140 140 static int power_chpoll(dev_t, short, int, short *, struct pollhead **);
141 141 #ifndef ACPI_POWER_BUTTON
142 142 static uint_t power_high_intr(caddr_t);
143 143 #endif
144 144 static uint_t power_soft_intr(caddr_t);
145 145 static uint_t power_issue_shutdown(caddr_t);
146 146 static void power_timeout(caddr_t);
147 147 static void power_log_message(void);
148 148
149 149 /*
150 150 * Structure used in the driver
151 151 */
152 152 struct power_soft_state {
153 153 dev_info_t *dip; /* device info pointer */
154 154 kmutex_t power_mutex; /* mutex lock */
155 155 kmutex_t power_intr_mutex; /* interrupt mutex lock */
156 156 ddi_iblock_cookie_t soft_iblock_cookie; /* holds interrupt cookie */
157 157 ddi_iblock_cookie_t high_iblock_cookie; /* holds interrupt cookie */
158 158 ddi_softintr_t softintr_id; /* soft interrupt id */
159 159 uchar_t clones[POWER_MAX_CLONE]; /* array of minor clones */
160 160 int monitor_on; /* clone monitoring the button event */
161 161 /* clone 0 indicates no one is */
162 162 /* monitoring the button event */
163 163 pollhead_t pollhd; /* poll head struct */
164 164 int events; /* bit map of occured events */
165 165 int shutdown_pending; /* system shutdown in progress */
166 166 #ifdef ACPI_POWER_BUTTON
167 167 boolean_t fixed_attached; /* true means fixed is attached */
168 168 boolean_t gpe_attached; /* true means GPE is attached */
169 169 ACPI_HANDLE button_obj; /* handle to device power button */
170 170 #else
171 171 ddi_acc_handle_t power_rhandle; /* power button register handle */
172 172 uint8_t *power_btn_reg; /* power button register address */
173 173 uint8_t power_btn_bit; /* power button register bit */
174 174 boolean_t power_regs_mapped; /* flag to tell if regs mapped */
175 175 boolean_t power_btn_ioctl; /* flag to specify ioctl request */
176 176 #endif
177 177 };
178 178
179 179 static void power_gen_sysevent(struct power_soft_state *);
180 180
181 181 #ifdef ACPI_POWER_BUTTON
182 182 static int power_attach_acpi(struct power_soft_state *softsp);
183 183 static void power_detach_acpi(struct power_soft_state *softsp);
184 184 static UINT32 power_acpi_fixed_event(void *ctx);
185 185 #else
186 186 static int power_setup_regs(struct power_soft_state *softsp);
187 187 static void power_free_regs(struct power_soft_state *softsp);
188 188 #endif /* ACPI_POWER_BUTTON */
189 189
190 190 /*
191 191 * Configuration data structures
192 192 */
193 193 static struct cb_ops power_cb_ops = {
194 194 power_open, /* open */
195 195 power_close, /* close */
196 196 nodev, /* strategy */
197 197 nodev, /* print */
198 198 nodev, /* dump */
199 199 nodev, /* read */
200 200 nodev, /* write */
201 201 power_ioctl, /* ioctl */
202 202 nodev, /* devmap */
203 203 nodev, /* mmap */
204 204 nodev, /* segmap */
205 205 power_chpoll, /* poll */
206 206 ddi_prop_op, /* cb_prop_op */
207 207 NULL, /* streamtab */
208 208 D_MP | D_NEW, /* Driver compatibility flag */
209 209 CB_REV, /* rev */
210 210 nodev, /* cb_aread */
211 211 nodev /* cb_awrite */
212 212 };
213 213
214 214 static struct dev_ops power_ops = {
215 215 DEVO_REV, /* devo_rev, */
216 216 0, /* refcnt */
217 217 power_getinfo, /* getinfo */
218 218 nulldev, /* identify */
219 219 nulldev, /* probe */
220 220 power_attach, /* attach */
221 221 power_detach, /* detach */
222 222 nodev, /* reset */
223 223 &power_cb_ops, /* cb_ops */
224 224 (struct bus_ops *)NULL, /* bus_ops */
225 225 NULL, /* power */
226 226 ddi_quiesce_not_supported, /* devo_quiesce */
227 227 };
228 228
229 229 static struct modldrv modldrv = {
230 230 &mod_driverops, /* Type of module. This one is a driver */
231 231 "power button driver", /* name of module */
232 232 &power_ops, /* driver ops */
233 233 };
234 234
235 235 static struct modlinkage modlinkage = {
236 236 MODREV_1,
237 237 (void *)&modldrv,
238 238 NULL
239 239 };
240 240
241 241 /*
242 242 * These are the module initialization routines.
243 243 */
244 244
245 245 int
246 246 _init(void)
247 247 {
248 248 int error;
249 249
250 250 if ((error = ddi_soft_state_init(&power_state,
251 251 sizeof (struct power_soft_state), 0)) != 0)
252 252 return (error);
253 253
254 254 if ((error = mod_install(&modlinkage)) != 0)
255 255 ddi_soft_state_fini(&power_state);
256 256
257 257 return (error);
258 258 }
259 259
260 260 int
261 261 _fini(void)
262 262 {
263 263 int error;
264 264
265 265 if ((error = mod_remove(&modlinkage)) == 0)
266 266 ddi_soft_state_fini(&power_state);
267 267
268 268 return (error);
269 269 }
270 270
271 271 int
272 272 _info(struct modinfo *modinfop)
273 273 {
274 274 return (mod_info(&modlinkage, modinfop));
275 275 }
276 276
277 277 /*ARGSUSED*/
278 278 static int
279 279 power_getinfo(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg,
280 280 void **result)
281 281 {
282 282 struct power_soft_state *softsp;
283 283
284 284 if (power_inst == -1)
285 285 return (DDI_FAILURE);
286 286
287 287 switch (infocmd) {
288 288 case DDI_INFO_DEVT2DEVINFO:
289 289 if ((softsp = ddi_get_soft_state(power_state, power_inst))
290 290 == NULL)
291 291 return (DDI_FAILURE);
292 292 *result = (void *)softsp->dip;
293 293 return (DDI_SUCCESS);
294 294
295 295 case DDI_INFO_DEVT2INSTANCE:
296 296 *result = (void *)(uintptr_t)power_inst;
297 297 return (DDI_SUCCESS);
298 298
299 299 default:
300 300 return (DDI_FAILURE);
301 301 }
302 302 }
303 303
304 304 static int
305 305 power_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
306 306 {
307 307 struct power_soft_state *softsp;
308 308
309 309 switch (cmd) {
310 310 case DDI_ATTACH:
311 311 break;
312 312 case DDI_RESUME:
313 313 return (DDI_SUCCESS);
314 314 default:
315 315 return (DDI_FAILURE);
316 316 }
317 317
318 318 /*
319 319 * If the power node doesn't have "button" property, quietly
320 320 * fail to attach.
321 321 */
322 322 if (ddi_prop_exists(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
323 323 "button") == 0)
324 324 return (DDI_FAILURE);
325 325
326 326 if (power_inst != -1)
327 327 return (DDI_FAILURE);
328 328
329 329 power_inst = ddi_get_instance(dip);
330 330
331 331 if (ddi_soft_state_zalloc(power_state, power_inst) != DDI_SUCCESS)
332 332 return (DDI_FAILURE);
333 333
334 334 if (ddi_create_minor_node(dip, "power_button", S_IFCHR,
335 335 (power_inst << 8) + 0, "ddi_power_button", 0) != DDI_SUCCESS)
336 336 return (DDI_FAILURE);
337 337
338 338 softsp = ddi_get_soft_state(power_state, power_inst);
339 339 softsp->dip = dip;
340 340
341 341 #ifdef ACPI_POWER_BUTTON
342 342 (void) power_attach_acpi(softsp);
343 343 #else
344 344 if (power_setup_regs(softsp) != DDI_SUCCESS) {
345 345 cmn_err(CE_WARN, "power_attach: failed to setup registers");
346 346 goto error;
347 347 }
348 348
349 349 if (ddi_get_iblock_cookie(dip, 0,
350 350 &softsp->high_iblock_cookie) != DDI_SUCCESS) {
351 351 cmn_err(CE_WARN, "power_attach: ddi_get_soft_iblock_cookie "
352 352 "failed.");
353 353 goto error;
354 354 }
355 355 mutex_init(&softsp->power_intr_mutex, NULL, MUTEX_DRIVER,
356 356 softsp->high_iblock_cookie);
357 357
358 358 if (ddi_add_intr(dip, 0, &softsp->high_iblock_cookie, NULL,
359 359 power_high_intr, (caddr_t)softsp) != DDI_SUCCESS) {
360 360 cmn_err(CE_WARN, "power_attach: failed to add high-level "
361 361 " interrupt handler.");
362 362 mutex_destroy(&softsp->power_intr_mutex);
363 363 goto error;
364 364 }
365 365 #endif /* ACPI_POWER_BUTTON */
366 366
367 367 if (ddi_get_soft_iblock_cookie(dip, DDI_SOFTINT_LOW,
368 368 &softsp->soft_iblock_cookie) != DDI_SUCCESS) {
369 369 cmn_err(CE_WARN, "power_attach: ddi_get_soft_iblock_cookie "
370 370 "failed.");
371 371 mutex_destroy(&softsp->power_intr_mutex);
372 372 ddi_remove_intr(dip, 0, NULL);
373 373 goto error;
374 374 }
375 375
376 376 mutex_init(&softsp->power_mutex, NULL, MUTEX_DRIVER,
377 377 (void *)softsp->soft_iblock_cookie);
378 378
379 379 if (ddi_add_softintr(dip, DDI_SOFTINT_LOW, &softsp->softintr_id,
380 380 NULL, NULL, power_soft_intr, (caddr_t)softsp) != DDI_SUCCESS) {
381 381 cmn_err(CE_WARN, "power_attach: failed to add soft "
382 382 "interrupt handler.");
383 383 mutex_destroy(&softsp->power_mutex);
384 384 mutex_destroy(&softsp->power_intr_mutex);
385 385 ddi_remove_intr(dip, 0, NULL);
386 386 goto error;
387 387 }
388 388
389 389 ddi_report_dev(dip);
390 390
391 391 return (DDI_SUCCESS);
392 392
393 393 error:
394 394 #ifdef ACPI_POWER_BUTTON
395 395 /*
396 396 * detach ACPI power button
397 397 */
398 398 power_detach_acpi(softsp);
399 399 #else
400 400 power_free_regs(softsp);
401 401 #endif /* ACPI_POWER_BUTTON */
402 402 ddi_remove_minor_node(dip, "power_button");
403 403 ddi_soft_state_free(power_state, power_inst);
404 404 return (DDI_FAILURE);
405 405 }
406 406
407 407 /*ARGSUSED*/
408 408 /*
409 409 * This driver doesn't detach.
410 410 */
411 411 static int
412 412 power_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
413 413 {
414 414 /*
415 415 * Since the "power" node has "reg" property, as part of
416 416 * the suspend operation, detach(9E) entry point is called.
417 417 * There is no state to save, since this register is used
418 418 * by OBP to power off the system and the state of the
419 419 * power off is preserved by hardware.
420 420 */
421 421 return ((cmd == DDI_SUSPEND) ? DDI_SUCCESS :
422 422 DDI_FAILURE);
423 423 }
424 424
425 425
426 426 #ifndef ACPI_POWER_BUTTON
427 427 /*
428 428 * Handler for the high-level interrupt.
429 429 */
430 430 static uint_t
431 431 power_high_intr(caddr_t arg)
432 432 {
433 433 struct power_soft_state *softsp = (struct power_soft_state *)arg;
434 434 ddi_acc_handle_t hdl = softsp->power_rhandle;
435 435 uint8_t reg;
436 436
437 437 hrtime_t tstamp;
438 438 static hrtime_t o_tstamp = 0;
439 439 static hrtime_t power_button_tstamp = 0;
440 440 static int power_button_cnt;
441 441
442 442 if (softsp->power_regs_mapped) {
443 443 mutex_enter(&softsp->power_intr_mutex);
444 444
445 445 /* Check if power button interrupt is delivered by EPIC HW */
446 446 if (hasEPIC) {
447 447 /* read isr - first issue command */
448 448 EPIC_WR(hdl, softsp->power_btn_reg,
449 449 EPIC_ATOM_INTR_READ);
450 450 /* next, read the reg */
451 451 EPIC_RD(hdl, softsp->power_btn_reg, reg);
452 452
453 453 if (reg & EPIC_FIRE_INTERRUPT) { /* PB pressed */
454 454 /* clear the interrupt */
455 455 EPIC_WR(hdl, softsp->power_btn_reg,
456 456 EPIC_ATOM_INTR_CLEAR);
457 457 } else {
458 458 if (!softsp->power_btn_ioctl) {
459 459 mutex_exit(&softsp->power_intr_mutex);
460 460 return (DDI_INTR_CLAIMED);
461 461 }
462 462 softsp->power_btn_ioctl = B_FALSE;
463 463 }
464 464 } else {
465 465 reg = ddi_get8(hdl, softsp->power_btn_reg);
466 466 if (reg & softsp->power_btn_bit) {
467 467 reg &= softsp->power_btn_bit;
468 468 ddi_put8(hdl, softsp->power_btn_reg, reg);
469 469 (void) ddi_get8(hdl, softsp->power_btn_reg);
470 470 } else {
471 471 if (!softsp->power_btn_ioctl) {
472 472 mutex_exit(&softsp->power_intr_mutex);
473 473 return (DDI_INTR_CLAIMED);
474 474 }
475 475 softsp->power_btn_ioctl = B_FALSE;
476 476 }
477 477 }
478 478 mutex_exit(&softsp->power_intr_mutex);
479 479 }
480 480
481 481 tstamp = gethrtime();
482 482
483 483 /* need to deal with power button debounce */
484 484 if (o_tstamp && (tstamp - o_tstamp) < power_button_debounce) {
485 485 o_tstamp = tstamp;
486 486 return (DDI_INTR_CLAIMED);
487 487 }
488 488 o_tstamp = tstamp;
489 489
490 490 power_button_cnt++;
491 491
492 492 mutex_enter(&softsp->power_intr_mutex);
493 493 power_button_pressed++;
494 494 mutex_exit(&softsp->power_intr_mutex);
495 495
496 496 /*
497 497 * If power button abort is enabled and power button was pressed
498 498 * power_button_abort_presses times within power_button_abort_interval
499 499 * then call abort_sequence_enter();
500 500 */
501 501 if (power_button_abort_enable) {
502 502 if (power_button_abort_presses == 1 ||
503 503 tstamp < (power_button_tstamp +
504 504 power_button_abort_interval)) {
505 505 if (power_button_cnt == power_button_abort_presses) {
506 506 mutex_enter(&softsp->power_intr_mutex);
507 507 power_button_cancel += power_button_timeouts;
508 508 power_button_pressed = 0;
509 509 mutex_exit(&softsp->power_intr_mutex);
510 510 power_button_cnt = 0;
511 511 abort_sequence_enter("Power Button Abort");
512 512 return (DDI_INTR_CLAIMED);
513 513 }
514 514 } else {
515 515 power_button_cnt = 1;
516 516 power_button_tstamp = tstamp;
517 517 }
518 518 }
519 519
520 520 if (!power_button_enable)
521 521 return (DDI_INTR_CLAIMED);
522 522
523 523 /* post softint to issue timeout for power button action */
524 524 if (softsp->softintr_id != NULL)
525 525 ddi_trigger_softintr(softsp->softintr_id);
526 526
527 527 return (DDI_INTR_CLAIMED);
528 528 }
529 529 #endif /* ifndef ACPI_POWER_BUTTON */
530 530
531 531 /*
532 532 * Handle the softints....
533 533 *
534 534 * If only one softint is posted for several button presses, record
535 535 * the number of additional presses just incase this was actually not quite
536 536 * an Abort sequence so that we can log this event later.
537 537 *
538 538 * Issue a timeout with a duration being a fraction larger than
539 539 * the specified Abort interval inorder to perform a power down if required.
540 540 */
541 541 static uint_t
542 542 power_soft_intr(caddr_t arg)
543 543 {
544 544 struct power_soft_state *softsp = (struct power_soft_state *)arg;
545 545
546 546 if (!power_button_abort_enable)
547 547 return (power_issue_shutdown(arg));
548 548
549 549 mutex_enter(&softsp->power_intr_mutex);
550 550 if (!power_button_pressed) {
551 551 mutex_exit(&softsp->power_intr_mutex);
552 552 return (DDI_INTR_CLAIMED);
553 553 }
554 554
555 555 /*
556 556 * Schedule a timeout to do the necessary
557 557 * work for shutdown, only one timeout for
558 558 * n presses if power button was pressed
559 559 * more than once before softint fired
560 560 */
561 561 if (power_button_pressed > 1)
562 562 additional_presses += power_button_pressed - 1;
563 563
564 564 timeout_cancel = 0;
565 565 power_button_pressed = 0;
566 566 power_button_timeouts++;
567 567 mutex_exit(&softsp->power_intr_mutex);
568 568 (void) timeout((void(*)(void *))power_timeout,
569 569 softsp, NSEC_TO_TICK(power_button_abort_interval) +
570 570 ABORT_INCREMENT_DELAY);
571 571
572 572 return (DDI_INTR_CLAIMED);
573 573 }
574 574
575 575 /*
576 576 * Upon receiving a timeout the following is determined:
577 577 *
578 578 * If an Abort sequence was issued, then we cancel all outstanding timeouts
579 579 * and additional presses prior to the Abort sequence.
580 580 *
581 581 * If we had multiple timeouts issued and the abort sequence was not met,
582 582 * then we had more than one button press to power down the machine. We
583 583 * were probably trying to issue an abort. So log a message indicating this
584 584 * and cancel all outstanding timeouts.
585 585 *
586 586 * If we had just one timeout and the abort sequence was not met then
587 587 * we really did want to power down the machine, so call power_issue_shutdown()
588 588 * to do the work and schedule a power down
589 589 */
590 590 static void
591 591 power_timeout(caddr_t arg)
592 592 {
593 593 struct power_soft_state *softsp = (struct power_soft_state *)arg;
594 594 static int first = 0;
595 595
596 596 /*
597 597 * Abort was generated cancel all outstanding power
598 598 * button timeouts
599 599 */
600 600 mutex_enter(&softsp->power_intr_mutex);
601 601 if (power_button_cancel) {
602 602 power_button_cancel--;
603 603 power_button_timeouts--;
604 604 if (!first) {
605 605 first++;
606 606 additional_presses = 0;
607 607 }
608 608 mutex_exit(&softsp->power_intr_mutex);
609 609 return;
610 610 }
611 611 first = 0;
612 612
613 613 /*
614 614 * We get here if the timeout(s) have fired and they were
615 615 * not issued prior to an abort.
616 616 *
617 617 * If we had more than one press in the interval we were
618 618 * probably trying to issue an abort, but didnt press the
619 619 * required number within the interval. Hence cancel all
620 620 * timeouts and do not continue towards shutdown.
621 621 */
622 622 if (!timeout_cancel) {
623 623 timeout_cancel = power_button_timeouts +
624 624 additional_presses;
625 625
626 626 power_button_timeouts--;
627 627 if (!power_button_timeouts)
628 628 additional_presses = 0;
629 629
630 630 if (timeout_cancel > 1) {
631 631 mutex_exit(&softsp->power_intr_mutex);
632 632 cmn_err(CE_NOTE, "Power Button pressed "
633 633 "%d times, cancelling all requests",
634 634 timeout_cancel);
635 635 return;
636 636 }
637 637 mutex_exit(&softsp->power_intr_mutex);
638 638
639 639 /* Go and do the work to request shutdown */
640 640 (void) power_issue_shutdown((caddr_t)softsp);
641 641 return;
642 642 }
643 643
644 644 power_button_timeouts--;
645 645 if (!power_button_timeouts)
646 646 additional_presses = 0;
647 647 mutex_exit(&softsp->power_intr_mutex);
648 648 }
649 649
650 650 #ifdef ACPI_POWER_BUTTON
651 651 static void
652 652 do_shutdown(void)
653 653 {
654 654 proc_t *initpp;
655 655
656 656 /*
657 657 * If we're still booting and init(1) isn't set up yet, simply halt.
658 658 */
659 659 mutex_enter(&pidlock);
660 660 initpp = prfind(P_INITPID);
661 661 mutex_exit(&pidlock);
662 662 if (initpp == NULL) {
663 663 extern void halt(char *);
664 664 halt("Power off the System"); /* just in case */
665 665 }
666 666
667 667 /*
668 668 * else, graceful shutdown with inittab and all getting involved
669 669 */
670 670 psignal(initpp, SIGPWR);
671 671 }
672 672 #endif
673 673
674 674 static uint_t
675 675 power_issue_shutdown(caddr_t arg)
676 676 {
677 677 struct power_soft_state *softsp = (struct power_soft_state *)arg;
678 678
679 679 mutex_enter(&softsp->power_mutex);
680 680 softsp->events |= PB_BUTTON_PRESS;
681 681 if (softsp->monitor_on != 0) {
682 682 mutex_exit(&softsp->power_mutex);
683 683 pollwakeup(&softsp->pollhd, POLLRDNORM);
684 684 pollwakeup(&softsp->pollhd, POLLIN);
685 685 power_gen_sysevent(softsp);
686 686 return (DDI_INTR_CLAIMED);
687 687 }
688 688
689 689 if (!softsp->shutdown_pending) {
690 690 cmn_err(CE_WARN, "Power off requested from power button or "
691 691 "SC, powering down the system!");
692 692 softsp->shutdown_pending = 1;
693 693 do_shutdown();
694 694
695 695 /*
696 696 * Wait a while for "do_shutdown()" to shut down the system
697 697 * before logging an error message.
698 698 */
699 699 (void) timeout((void(*)(void *))power_log_message, NULL,
700 700 100 * hz);
701 701 }
702 702 mutex_exit(&softsp->power_mutex);
703 703
704 704 return (DDI_INTR_CLAIMED);
705 705 }
706 706
707 707 static void
708 708 power_gen_sysevent(struct power_soft_state *softsp)
709 709 {
710 710 nvlist_t *attr_list = NULL;
711 711 int err;
712 712 char pathname[MAXPATHLEN];
713 713 char hid[9] = "\0";
714 714
715 715 /* Allocate and build sysevent attribute list */
716 716 err = nvlist_alloc(&attr_list, NV_UNIQUE_NAME_TYPE, DDI_NOSLEEP);
717 717 if (err != 0) {
718 718 cmn_err(CE_WARN,
719 719 "cannot allocate memory for sysevent attributes\n");
720 720 return;
721 721 }
722 722
723 723 #ifdef ACPI_POWER_BUTTON
724 724 /* Only control method power button has HID */
725 725 if (softsp->gpe_attached) {
726 726 (void) strlcpy(hid, "PNP0C0C", sizeof (hid));
727 727 }
728 728 #endif
729 729
730 730 err = nvlist_add_string(attr_list, PWRCTL_DEV_HID, hid);
731 731 if (err != 0) {
732 732 cmn_err(CE_WARN,
733 733 "Failed to add attr [%s] for %s/%s event",
734 734 PWRCTL_DEV_HID, EC_PWRCTL, ESC_PWRCTL_POWER_BUTTON);
735 735 nvlist_free(attr_list);
736 736 return;
737 737 }
738 738
739 739 (void) ddi_pathname(softsp->dip, pathname);
740 740 err = nvlist_add_string(attr_list, PWRCTL_DEV_PHYS_PATH, pathname);
741 741 if (err != 0) {
742 742 cmn_err(CE_WARN,
743 743 "Failed to add attr [%s] for %s/%s event",
744 744 PWRCTL_DEV_PHYS_PATH, EC_PWRCTL, ESC_PWRCTL_POWER_BUTTON);
745 745 nvlist_free(attr_list);
746 746 return;
747 747 }
748 748
749 749 /* Generate/log sysevent */
750 750 err = ddi_log_sysevent(softsp->dip, DDI_VENDOR_SUNW, EC_PWRCTL,
751 751 ESC_PWRCTL_POWER_BUTTON, attr_list, NULL, DDI_NOSLEEP);
752 752 if (err != DDI_SUCCESS) {
753 753 cmn_err(CE_WARN,
754 754 "cannot log sysevent, err code %x\n", err);
755 755 }
756 756
757 757 nvlist_free(attr_list);
758 758 }
759 759
760 760 /*
761 761 * Open the device.
762 762 */
763 763 /*ARGSUSED*/
764 764 static int
765 765 power_open(dev_t *devp, int openflags, int otyp, cred_t *credp)
766 766 {
767 767 struct power_soft_state *softsp;
768 768 int clone;
769 769
770 770 if (otyp != OTYP_CHR)
771 771 return (EINVAL);
772 772
773 773 if ((softsp = ddi_get_soft_state(power_state, power_inst)) ==
774 774 NULL)
775 775 return (ENXIO);
776 776
777 777 mutex_enter(&softsp->power_mutex);
778 778 for (clone = 1; clone < POWER_MAX_CLONE; clone++)
779 779 if (!softsp->clones[clone])
780 780 break;
781 781
782 782 if (clone == POWER_MAX_CLONE) {
783 783 cmn_err(CE_WARN, "power_open: No more allocation left "
784 784 "to create a clone minor.");
785 785 mutex_exit(&softsp->power_mutex);
786 786 return (ENXIO);
787 787 }
788 788
789 789 *devp = makedevice(getmajor(*devp), (power_inst << 8) + clone);
790 790 softsp->clones[clone] = 1;
791 791 mutex_exit(&softsp->power_mutex);
792 792
793 793 return (0);
794 794 }
795 795
796 796 /*
797 797 * Close the device.
798 798 */
799 799 /*ARGSUSED*/
800 800 static int
801 801 power_close(dev_t dev, int openflags, int otyp, cred_t *credp)
802 802 {
803 803 struct power_soft_state *softsp;
804 804 int clone;
805 805
806 806 if (otyp != OTYP_CHR)
807 807 return (EINVAL);
808 808
809 809 if ((softsp = ddi_get_soft_state(power_state, power_inst)) ==
810 810 NULL)
811 811 return (ENXIO);
812 812
813 813 clone = POWER_MINOR_TO_CLONE(getminor(dev));
814 814 mutex_enter(&softsp->power_mutex);
815 815 if (softsp->monitor_on == clone)
816 816 softsp->monitor_on = 0;
817 817 softsp->clones[clone] = 0;
818 818 mutex_exit(&softsp->power_mutex);
819 819
820 820 return (0);
821 821 }
822 822
823 823 /*ARGSUSED*/
824 824 static int
825 825 power_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, cred_t *cred_p,
826 826 int *rval_p)
827 827 {
828 828 struct power_soft_state *softsp;
829 829 int clone;
830 830
831 831 if ((softsp = ddi_get_soft_state(power_state, power_inst)) ==
832 832 NULL)
833 833 return (ENXIO);
834 834
835 835 clone = POWER_MINOR_TO_CLONE(getminor(dev));
836 836 switch (cmd) {
837 837 case PB_BEGIN_MONITOR:
838 838 mutex_enter(&softsp->power_mutex);
839 839 if (softsp->monitor_on) {
840 840 mutex_exit(&softsp->power_mutex);
841 841 return (EBUSY);
842 842 }
843 843 softsp->monitor_on = clone;
844 844 mutex_exit(&softsp->power_mutex);
845 845 return (0);
846 846
847 847 case PB_END_MONITOR:
848 848 mutex_enter(&softsp->power_mutex);
849 849
850 850 /*
851 851 * If PB_END_MONITOR is called without first
852 852 * calling PB_BEGIN_MONITOR, an error will be
853 853 * returned.
854 854 */
855 855 if (!softsp->monitor_on) {
856 856 mutex_exit(&softsp->power_mutex);
857 857 return (ENXIO);
858 858 }
859 859
860 860 /*
861 861 * This clone is not monitoring the button.
862 862 */
863 863 if (softsp->monitor_on != clone) {
864 864 mutex_exit(&softsp->power_mutex);
865 865 return (EINVAL);
866 866 }
867 867 softsp->monitor_on = 0;
868 868 mutex_exit(&softsp->power_mutex);
869 869 return (0);
870 870
871 871 case PB_GET_EVENTS:
872 872 mutex_enter(&softsp->power_mutex);
873 873 if (ddi_copyout((void *)&softsp->events, (void *)arg,
874 874 sizeof (int), mode) != 0) {
875 875 mutex_exit(&softsp->power_mutex);
876 876 return (EFAULT);
877 877 }
878 878
879 879 /*
880 880 * This ioctl returned the events detected since last
881 881 * call. Note that any application can get the events
882 882 * and clear the event register.
883 883 */
884 884 softsp->events = 0;
885 885 mutex_exit(&softsp->power_mutex);
886 886 return (0);
887 887
888 888 /*
889 889 * This ioctl is used by the test suite.
890 890 */
891 891 case PB_CREATE_BUTTON_EVENT:
892 892 #ifdef ACPI_POWER_BUTTON
893 893 (UINT32)power_acpi_fixed_event((void *)softsp);
894 894 #else
895 895 if (softsp->power_regs_mapped) {
896 896 mutex_enter(&softsp->power_intr_mutex);
897 897 softsp->power_btn_ioctl = B_TRUE;
898 898 mutex_exit(&softsp->power_intr_mutex);
899 899 }
900 900 (void) power_high_intr((caddr_t)softsp);
901 901 #endif /* ACPI_POWER_BUTTON */
902 902 return (0);
903 903
904 904 default:
905 905 return (ENOTTY);
906 906 }
907 907 }
908 908
909 909 /*ARGSUSED*/
910 910 static int
911 911 power_chpoll(dev_t dev, short events, int anyyet,
912 912 short *reventsp, struct pollhead **phpp)
913 913 {
914 914 struct power_soft_state *softsp;
915 915
916 916 if ((softsp = ddi_get_soft_state(power_state, power_inst)) == NULL)
917 917 return (ENXIO);
918 918
919 919 mutex_enter(&softsp->power_mutex);
920 920 *reventsp = 0;
921 921 if (softsp->events)
922 922 *reventsp = POLLRDNORM|POLLIN;
923 923 else {
924 924 if (!anyyet)
925 925 *phpp = &softsp->pollhd;
926 926 }
927 927 mutex_exit(&softsp->power_mutex);
928 928
929 929 return (0);
930 930 }
931 931
932 932 static void
933 933 power_log_message(void)
934 934 {
935 935 struct power_soft_state *softsp;
936 936
937 937 if ((softsp = ddi_get_soft_state(power_state, power_inst)) == NULL) {
938 938 cmn_err(CE_WARN, "Failed to get internal state!");
939 939 return;
940 940 }
941 941
942 942 mutex_enter(&softsp->power_mutex);
943 943 softsp->shutdown_pending = 0;
944 944 cmn_err(CE_WARN, "Failed to shut down the system!");
945 945 mutex_exit(&softsp->power_mutex);
946 946 }
947 947
948 948 #ifdef ACPI_POWER_BUTTON
949 949 /*
950 950 *
951 951 */
952 952 /*ARGSUSED*/
953 953 static ACPI_STATUS
954 954 acpi_device(ACPI_HANDLE obj, UINT32 nesting, void *context, void **rv)
955 955 {
956 956
957 957 *((ACPI_HANDLE *)context) = obj;
958 958 return (AE_OK);
959 959 }
960 960
961 961 /*
962 962 *
963 963 */
964 964 static ACPI_HANDLE
965 965 probe_acpi_pwrbutton()
966 966 {
967 967 ACPI_HANDLE obj = NULL;
968 968
969 969 (void) AcpiGetDevices("PNP0C0C", acpi_device, (void *)&obj, NULL);
970 970 return (obj);
971 971 }
972 972
973 973 static UINT32
974 974 power_acpi_fixed_event(void *ctx)
975 975 {
976 976
977 977 mutex_enter(&((struct power_soft_state *)ctx)->power_intr_mutex);
978 978 power_button_pressed++;
979 979 mutex_exit(&((struct power_soft_state *)ctx)->power_intr_mutex);
980 980
981 981 /* post softint to issue timeout for power button action */
982 982 if (((struct power_soft_state *)ctx)->softintr_id != NULL)
983 983 ddi_trigger_softintr(
984 984 ((struct power_soft_state *)ctx)->softintr_id);
985 985
986 986 return (AE_OK);
987 987 }
988 988
989 989 /*ARGSUSED*/
990 990 static void
991 991 power_acpi_notify_event(ACPI_HANDLE obj, UINT32 val, void *ctx)
992 992 {
993 993 if (val == 0x80)
994 994 (void) power_acpi_fixed_event(ctx);
995 995 }
996 996
997 997 /*
998 998 *
999 999 */
1000 1000 static int
1001 1001 power_probe_method_button(struct power_soft_state *softsp)
1002 1002 {
1003 1003 ACPI_HANDLE button_obj;
1004 1004
1005 1005 button_obj = probe_acpi_pwrbutton();
1006 1006 softsp->button_obj = button_obj; /* remember obj */
1007 1007 if ((button_obj != NULL) &&
1008 1008 (AcpiInstallNotifyHandler(button_obj, ACPI_DEVICE_NOTIFY,
1009 1009 power_acpi_notify_event, (void*)softsp) == AE_OK))
1010 1010 return (1);
1011 1011 return (0);
1012 1012 }
1013 1013
1014 1014 /*
1015 1015 *
1016 1016 */
1017 1017 static int
1018 1018 power_probe_fixed_button(struct power_soft_state *softsp)
1019 1019 {
1020 1020 ACPI_TABLE_FADT *fadt;
1021 1021
1022 1022 if (AcpiGetTable(ACPI_SIG_FADT, 1, (ACPI_TABLE_HEADER **) &fadt) !=
1023 1023 AE_OK)
1024 1024 return (0);
1025 1025
1026 1026 if ((fadt->Flags & ACPI_FADT_POWER_BUTTON) == 0) {
1027 1027 if (AcpiInstallFixedEventHandler(ACPI_EVENT_POWER_BUTTON,
1028 1028 power_acpi_fixed_event, (void *)softsp) == AE_OK)
1029 1029 return (1);
1030 1030 }
1031 1031 return (0);
1032 1032 }
1033 1033
1034 1034
1035 1035 /*
1036 1036 *
1037 1037 */
1038 1038 static int
1039 1039 power_attach_acpi(struct power_soft_state *softsp)
1040 1040 {
1041 1041
1042 1042 /*
1043 1043 * If we've attached anything already, return an error
1044 1044 */
1045 1045 if ((softsp->gpe_attached) || (softsp->fixed_attached))
1046 1046 return (DDI_FAILURE);
1047 1047
1048 1048 /*
1049 1049 * attempt to attach both a fixed-event handler and a GPE
1050 1050 * handler; remember what we got
1051 1051 */
1052 1052 softsp->fixed_attached = (power_probe_fixed_button(softsp) != 0);
1053 1053 softsp->gpe_attached = (power_probe_method_button(softsp) != 0);
1054 1054
1055 1055 /*
1056 1056 * If we've attached anything now, return success
1057 1057 */
1058 1058 if ((softsp->gpe_attached) || (softsp->fixed_attached))
1059 1059 return (DDI_SUCCESS);
1060 1060
1061 1061 return (DDI_FAILURE);
1062 1062 }
1063 1063
1064 1064 /*
1065 1065 *
1066 1066 */
1067 1067 static void
1068 1068 power_detach_acpi(struct power_soft_state *softsp)
1069 1069 {
1070 1070 if (softsp->gpe_attached) {
1071 1071 if (AcpiRemoveNotifyHandler(softsp->button_obj,
1072 1072 ACPI_DEVICE_NOTIFY, power_acpi_notify_event) != AE_OK)
1073 1073 cmn_err(CE_WARN, "!power: failed to remove Notify"
1074 1074 " handler");
1075 1075 }
1076 1076
1077 1077 if (softsp->fixed_attached) {
1078 1078 if (AcpiRemoveFixedEventHandler(ACPI_EVENT_POWER_BUTTON,
1079 1079 power_acpi_fixed_event) != AE_OK)
1080 1080 cmn_err(CE_WARN, "!power: failed to remove Power"
1081 1081 " Button handler");
1082 1082 }
1083 1083 }
1084 1084
1085 1085 #else
1086 1086 /*
1087 1087 * Code for platforms that have EPIC processor for processing power
1088 1088 * button interrupts.
1089 1089 */
1090 1090 static int
1091 1091 power_setup_epic_regs(dev_info_t *dip, struct power_soft_state *softsp)
1092 1092 {
1093 1093 ddi_device_acc_attr_t attr;
1094 1094 uint8_t *reg_base;
1095 1095
1096 1096 attr.devacc_attr_version = DDI_DEVICE_ATTR_V0;
1097 1097 attr.devacc_attr_endian_flags = DDI_STRUCTURE_LE_ACC;
1098 1098 attr.devacc_attr_dataorder = DDI_STRICTORDER_ACC;
1099 1099 if (ddi_regs_map_setup(dip, 0, (caddr_t *)®_base,
1100 1100 EPIC_REGS_OFFSET, EPIC_REGS_LEN, &attr,
1101 1101 &softsp->power_rhandle) != DDI_SUCCESS) {
1102 1102 return (DDI_FAILURE);
1103 1103 }
1104 1104
1105 1105 softsp->power_btn_reg = reg_base;
1106 1106 softsp->power_regs_mapped = B_TRUE;
1107 1107
1108 1108 /* Clear power button interrupt first */
1109 1109 EPIC_WR(softsp->power_rhandle, softsp->power_btn_reg,
1110 1110 EPIC_ATOM_INTR_CLEAR);
1111 1111
1112 1112 /* Enable EPIC interrupt for power button single press event */
1113 1113 EPIC_WR(softsp->power_rhandle, softsp->power_btn_reg,
1114 1114 EPIC_ATOM_INTR_ENABLE);
1115 1115
1116 1116 /*
1117 1117 * At this point, EPIC interrupt processing is fully initialised.
1118 1118 */
1119 1119 hasEPIC = B_TRUE;
1120 1120 return (DDI_SUCCESS);
1121 1121 }
1122 1122
1123 1123 /*
1124 1124 *
1125 1125 * power button register definitions for acpi register on m1535d
1126 1126 */
1127 1127 #define M1535D_PWR_BTN_REG_01 0x1
1128 1128 #define M1535D_PWR_BTN_EVENT_FLAG 0x1
1129 1129
1130 1130 static int
1131 1131 power_setup_m1535_regs(dev_info_t *dip, struct power_soft_state *softsp)
1132 1132 {
1133 1133 ddi_device_acc_attr_t attr;
1134 1134 uint8_t *reg_base;
1135 1135
1136 1136 attr.devacc_attr_version = DDI_DEVICE_ATTR_V0;
1137 1137 attr.devacc_attr_endian_flags = DDI_STRUCTURE_LE_ACC;
1138 1138 attr.devacc_attr_dataorder = DDI_STRICTORDER_ACC;
1139 1139 if (ddi_regs_map_setup(dip, 0, (caddr_t *)®_base, 0, 0, &attr,
1140 1140 &softsp->power_rhandle) != DDI_SUCCESS) {
1141 1141 return (DDI_FAILURE);
1142 1142 }
1143 1143 softsp->power_btn_reg = ®_base[M1535D_PWR_BTN_REG_01];
1144 1144 softsp->power_btn_bit = M1535D_PWR_BTN_EVENT_FLAG;
1145 1145 softsp->power_regs_mapped = B_TRUE;
1146 1146 return (DDI_SUCCESS);
1147 1147 }
1148 1148
1149 1149 /*
1150 1150 * MBC Fire/SSI Interrupt Status Register definitions
1151 1151 */
1152 1152 #define FIRE_SSI_ISR 0x0
1153 1153 #define FIRE_SSI_INTR_ENA 0x8
1154 1154 #define FIRE_SSI_SHUTDOWN_REQ 0x4
1155 1155
1156 1156 static int
1157 1157 power_setup_mbc_regs(dev_info_t *dip, struct power_soft_state *softsp)
1158 1158 {
1159 1159 ddi_device_acc_attr_t attr;
1160 1160 uint8_t *reg_base;
1161 1161 ddi_acc_handle_t hdl;
1162 1162 uint8_t reg;
1163 1163
1164 1164 attr.devacc_attr_version = DDI_DEVICE_ATTR_V0;
1165 1165 attr.devacc_attr_endian_flags = DDI_STRUCTURE_LE_ACC;
1166 1166 attr.devacc_attr_dataorder = DDI_STRICTORDER_ACC;
1167 1167 if (ddi_regs_map_setup(dip, 0, (caddr_t *)®_base, 0, 0, &attr,
1168 1168 &softsp->power_rhandle) != DDI_SUCCESS) {
1169 1169 return (DDI_FAILURE);
1170 1170 }
1171 1171 softsp->power_btn_reg = ®_base[FIRE_SSI_ISR];
1172 1172 softsp->power_btn_bit = FIRE_SSI_SHUTDOWN_REQ;
1173 1173 hdl = softsp->power_rhandle;
1174 1174 /*
1175 1175 * Clear MBC Fire Power Button interrupt, if set.
1176 1176 */
1177 1177 reg = ddi_get8(hdl, softsp->power_btn_reg);
1178 1178 if (reg & softsp->power_btn_bit) {
1179 1179 reg &= softsp->power_btn_bit;
1180 1180 ddi_put8(hdl, softsp->power_btn_reg, reg);
1181 1181 (void) ddi_get8(hdl, softsp->power_btn_reg);
1182 1182 }
1183 1183 /*
1184 1184 * Enable MBC Fire Power Button interrupt.
1185 1185 */
1186 1186 reg = ddi_get8(hdl, ®_base[FIRE_SSI_INTR_ENA]);
1187 1187 reg |= FIRE_SSI_SHUTDOWN_REQ;
1188 1188 ddi_put8(hdl, ®_base[FIRE_SSI_INTR_ENA], reg);
1189 1189
1190 1190 softsp->power_regs_mapped = B_TRUE;
1191 1191
1192 1192 return (DDI_SUCCESS);
1193 1193 }
1194 1194
1195 1195 /*
1196 1196 * Setup register map for the power button
1197 1197 * NOTE:- we only map registers for platforms if
1198 1198 * the OBP power device has any of the following
1199 1199 * properties:
1200 1200 *
1201 1201 * a) Boston: power-device-type set to "SUNW,mbc"
1202 1202 * b) Seattle: power-device-type set to "SUNW,pic18lf65j10"
1203 1203 * c) Chalupa: compatible set to "ali1535d+-power"
1204 1204 *
1205 1205 * Cases (a) and (b) are defined in FWARC 2005/687.
1206 1206 * If none of the above conditions are true, then we
1207 1207 * do not need to map in any registers, and this
1208 1208 * function can simply return DDI_SUCCESS.
1209 1209 */
1210 1210 static int
1211 1211 power_setup_regs(struct power_soft_state *softsp)
1212 1212 {
1213 1213 char *binding_name;
1214 1214 char *power_type = NULL;
1215 1215 int retval = DDI_SUCCESS;
1216 1216
1217 1217 softsp->power_regs_mapped = B_FALSE;
1218 1218 softsp->power_btn_ioctl = B_FALSE;
1219 1219 binding_name = ddi_binding_name(softsp->dip);
1220 1220 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, softsp->dip,
1221 1221 DDI_PROP_DONTPASS, POWER_DEVICE_TYPE,
1222 1222 &power_type) == DDI_PROP_SUCCESS) {
1223 1223 if (strcmp(power_type, "SUNW,mbc") == 0) {
1224 1224 retval = power_setup_mbc_regs(softsp->dip, softsp);
1225 1225 } else if (strcmp(power_type, "SUNW,pic18lf65j10") == 0) {
1226 1226 retval = power_setup_epic_regs(softsp->dip, softsp);
1227 1227 } else {
1228 1228 cmn_err(CE_WARN, "unexpected power-device-type: %s\n",
1229 1229 power_type);
1230 1230 retval = DDI_FAILURE;
1231 1231 }
1232 1232 ddi_prop_free(power_type);
1233 1233 } else if (strcmp(binding_name, "ali1535d+-power") == 0) {
1234 1234 retval = power_setup_m1535_regs(softsp->dip, softsp);
1235 1235 }
1236 1236
1237 1237 /*
1238 1238 * If power-device-type does not exist AND the binding name is not
1239 1239 * "ali1535d+-power", that means there is no additional HW and hence
1240 1240 * no extra processing is necessary. In that case, retval should still
1241 1241 * be set to its initial value of DDI_SUCCESS.
1242 1242 */
1243 1243 return (retval);
1244 1244 }
1245 1245
1246 1246 static void
1247 1247 power_free_regs(struct power_soft_state *softsp)
1248 1248 {
1249 1249 if (softsp->power_regs_mapped)
1250 1250 ddi_regs_map_free(&softsp->power_rhandle);
1251 1251 }
1252 1252 #endif /* ACPI_POWER_BUTTON */
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