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acpi_apm.c (168191) acpi_apm.c (170976)
1/*-
2 * Copyright (c) 2001 Mitsuru IWASAKI
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 * 1. Redistributions of source code must retain the above copyright

--- 11 unchanged lines hidden (view full) ---

20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
1/*-
2 * Copyright (c) 2001 Mitsuru IWASAKI
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 * 1. Redistributions of source code must retain the above copyright

--- 11 unchanged lines hidden (view full) ---

20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/sys/i386/acpica/acpi_machdep.c 168191 2007-03-31 23:23:42Z jhb $");
28__FBSDID("$FreeBSD: head/sys/i386/acpica/acpi_machdep.c 170976 2007-06-21 22:50:37Z njl $");
29
30#include <sys/param.h>
31#include <sys/bus.h>
32#include <sys/condvar.h>
33#include <sys/conf.h>
34#include <sys/fcntl.h>
35#include <sys/kernel.h>
29
30#include <sys/param.h>
31#include <sys/bus.h>
32#include <sys/condvar.h>
33#include <sys/conf.h>
34#include <sys/fcntl.h>
35#include <sys/kernel.h>
36#include <sys/malloc.h>
37#include <sys/poll.h>
36#include <sys/sysctl.h>
37#include <sys/uio.h>
38#include <vm/vm.h>
39#include <vm/pmap.h>
40
41#include <contrib/dev/acpica/acpi.h>
42#include <dev/acpica/acpivar.h>
43#include <dev/acpica/acpiio.h>
44
45/*
46 * APM driver emulation
47 */
48
38#include <sys/sysctl.h>
39#include <sys/uio.h>
40#include <vm/vm.h>
41#include <vm/pmap.h>
42
43#include <contrib/dev/acpica/acpi.h>
44#include <dev/acpica/acpivar.h>
45#include <dev/acpica/acpiio.h>
46
47/*
48 * APM driver emulation
49 */
50
49#include <sys/selinfo.h>
50
51#include <machine/apm_bios.h>
52#include <machine/pc/bios.h>
53
54#include <i386/bios/apm.h>
55
56SYSCTL_DECL(_debug_acpi);
57
58uint32_t acpi_resume_beep;
59TUNABLE_INT("debug.acpi.resume_beep", &acpi_resume_beep);
60SYSCTL_UINT(_debug_acpi, OID_AUTO, resume_beep, CTLFLAG_RW, &acpi_resume_beep,
61 0, "Beep the PC speaker when resuming");
62uint32_t acpi_reset_video;
63TUNABLE_INT("hw.acpi.reset_video", &acpi_reset_video);
64
65static int intr_model = ACPI_INTR_PIC;
66static int apm_active;
51#include <machine/apm_bios.h>
52#include <machine/pc/bios.h>
53
54#include <i386/bios/apm.h>
55
56SYSCTL_DECL(_debug_acpi);
57
58uint32_t acpi_resume_beep;
59TUNABLE_INT("debug.acpi.resume_beep", &acpi_resume_beep);
60SYSCTL_UINT(_debug_acpi, OID_AUTO, resume_beep, CTLFLAG_RW, &acpi_resume_beep,
61 0, "Beep the PC speaker when resuming");
62uint32_t acpi_reset_video;
63TUNABLE_INT("hw.acpi.reset_video", &acpi_reset_video);
64
65static int intr_model = ACPI_INTR_PIC;
66static int apm_active;
67static struct clonedevs *apm_clones;
67
68
68static d_open_t apmopen;
69static d_close_t apmclose;
70static d_write_t apmwrite;
71static d_ioctl_t apmioctl;
72static d_poll_t apmpoll;
69MALLOC_DEFINE(M_APMDEV, "apmdev", "APM device emulation");
73
70
71static d_open_t apmopen;
72static d_close_t apmclose;
73static d_write_t apmwrite;
74static d_ioctl_t apmioctl;
75static d_poll_t apmpoll;
76static d_kqfilter_t apmkqfilter;
77static void apmreadfiltdetach(struct knote *kn);
78static int apmreadfilt(struct knote *kn, long hint);
79static struct filterops apm_readfiltops =
80 { 1, NULL, apmreadfiltdetach, apmreadfilt };
81
74static struct cdevsw apm_cdevsw = {
75 .d_version = D_VERSION,
82static struct cdevsw apm_cdevsw = {
83 .d_version = D_VERSION,
84 .d_flags = D_TRACKCLOSE,
76 .d_open = apmopen,
77 .d_close = apmclose,
78 .d_write = apmwrite,
79 .d_ioctl = apmioctl,
80 .d_poll = apmpoll,
81 .d_name = "apm",
85 .d_open = apmopen,
86 .d_close = apmclose,
87 .d_write = apmwrite,
88 .d_ioctl = apmioctl,
89 .d_poll = apmpoll,
90 .d_name = "apm",
91 .d_kqfilter = apmkqfilter
82};
83
84static int
85acpi_capm_convert_battstate(struct acpi_battinfo *battp)
86{
87 int state;
88
89 state = APM_UNKNOWN;

--- 107 unchanged lines hidden (view full) ---

197 if (acpi_acad_get_acline(&acline))
198 app->ap_acline = APM_UNKNOWN;
199 else
200 app->ap_acline = acline; /* on/off */
201
202 return (0);
203}
204
92};
93
94static int
95acpi_capm_convert_battstate(struct acpi_battinfo *battp)
96{
97 int state;
98
99 state = APM_UNKNOWN;

--- 107 unchanged lines hidden (view full) ---

207 if (acpi_acad_get_acline(&acline))
208 app->ap_acline = APM_UNKNOWN;
209 else
210 app->ap_acline = acline; /* on/off */
211
212 return (0);
213}
214
215/* Create single-use devices for /dev/apm and /dev/apmctl. */
216static void
217apm_clone(void *arg, struct ucred *cred, char *name, int namelen,
218 struct cdev **dev)
219{
220 int ctl_dev, unit;
221
222 if (*dev != NULL)
223 return;
224 if (strcmp(name, "apmctl") == 0)
225 ctl_dev = TRUE;
226 else if (strcmp(name, "apm") == 0)
227 ctl_dev = FALSE;
228 else
229 return;
230
231 /* Always create a new device and unit number. */
232 unit = -1;
233 if (clone_create(&apm_clones, &apm_cdevsw, &unit, dev, 0)) {
234 if (ctl_dev) {
235 *dev = make_dev(&apm_cdevsw, unit2minor(unit),
236 UID_ROOT, GID_OPERATOR, 0660, "apmctl%d", unit);
237 } else {
238 *dev = make_dev(&apm_cdevsw, unit2minor(unit),
239 UID_ROOT, GID_OPERATOR, 0664, "apm%d", unit);
240 }
241 if (*dev != NULL) {
242 dev_ref(*dev);
243 (*dev)->si_flags |= SI_CHEAPCLONE;
244 }
245 }
246}
247
248/* Create a struct for tracking per-device suspend notification. */
249static struct apm_clone_data *
250apm_create_clone(struct cdev *dev, struct acpi_softc *acpi_sc)
251{
252 struct apm_clone_data *clone;
253
254 clone = malloc(sizeof(*clone), M_APMDEV, M_WAITOK);
255 clone->cdev = dev;
256 clone->acpi_sc = acpi_sc;
257 clone->notify_status = APM_EV_NONE;
258 bzero(&clone->sel_read, sizeof(clone->sel_read));
259 knlist_init(&clone->sel_read.si_note, &acpi_mutex, NULL, NULL, NULL);
260
261 /*
262 * The acpi device is always managed by devd(8) and is considered
263 * writable (i.e., ack is required to allow suspend to proceed.)
264 */
265 if (strcmp("acpi", devtoname(dev)) == 0)
266 clone->flags = ACPI_EVF_DEVD | ACPI_EVF_WRITE;
267 else
268 clone->flags = ACPI_EVF_NONE;
269
270 ACPI_LOCK(acpi);
271 STAILQ_INSERT_TAIL(&acpi_sc->apm_cdevs, clone, entries);
272 ACPI_UNLOCK(acpi);
273 return (clone);
274}
275
276/* XXX Kernel should be updated to allow calls to destroy_dev() in close(). */
277static void
278apm_destroy_clone(void *arg)
279{
280
281 destroy_dev((struct cdev *)arg);
282}
283
205static int
206apmopen(struct cdev *dev, int flag, int fmt, d_thread_t *td)
207{
284static int
285apmopen(struct cdev *dev, int flag, int fmt, d_thread_t *td)
286{
287 struct acpi_softc *acpi_sc;
288 struct apm_clone_data *clone;
289
290 acpi_sc = devclass_get_softc(devclass_find("acpi"), 0);
291 clone = apm_create_clone(dev, acpi_sc);
292 dev->si_drv1 = clone;
293
294 /* If the device is opened for write, record that. */
295 if ((flag & FWRITE) != 0)
296 clone->flags |= ACPI_EVF_WRITE;
297
208 return (0);
209}
210
211static int
212apmclose(struct cdev *dev, int flag, int fmt, d_thread_t *td)
213{
298 return (0);
299}
300
301static int
302apmclose(struct cdev *dev, int flag, int fmt, d_thread_t *td)
303{
304 struct apm_clone_data *clone;
305 struct acpi_softc *acpi_sc;
306
307 clone = dev->si_drv1;
308 acpi_sc = clone->acpi_sc;
309
310 /* We are about to lose a reference so check if suspend should occur */
311 if (acpi_sc->acpi_next_sstate != 0 &&
312 clone->notify_status != APM_EV_ACKED)
313 acpi_AckSleepState(clone, 0);
314
315 /* Remove this clone's data from the list and free it. */
316 ACPI_LOCK(acpi);
317 STAILQ_REMOVE(&acpi_sc->apm_cdevs, clone, apm_clone_data, entries);
318 knlist_destroy(&clone->sel_read.si_note);
319 ACPI_UNLOCK(acpi);
320 free(clone, M_APMDEV);
321 AcpiOsExecute(OSL_GPE_HANDLER, apm_destroy_clone, dev);
214 return (0);
215}
216
217static int
218apmioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, d_thread_t *td)
219{
322 return (0);
323}
324
325static int
326apmioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, d_thread_t *td)
327{
220 int error = 0;
328 int error;
329 struct apm_clone_data *clone;
221 struct acpi_softc *acpi_sc;
330 struct acpi_softc *acpi_sc;
222 struct apm_info info;
331 struct apm_info info;
332 struct apm_event_info *ev_info;
223 apm_info_old_t aiop;
224
333 apm_info_old_t aiop;
334
225 acpi_sc = devclass_get_softc(devclass_find("acpi"), 0);
335 error = 0;
336 clone = dev->si_drv1;
337 acpi_sc = clone->acpi_sc;
226
227 switch (cmd) {
228 case APMIO_SUSPEND:
229 if ((flag & FWRITE) == 0)
230 return (EPERM);
338
339 switch (cmd) {
340 case APMIO_SUSPEND:
341 if ((flag & FWRITE) == 0)
342 return (EPERM);
231 if (apm_active)
232 acpi_SetSleepState(acpi_sc, acpi_sc->acpi_suspend_sx);
233 else
234 error = EINVAL;
343 if (acpi_sc->acpi_next_sstate == 0) {
344 if (acpi_sc->acpi_suspend_sx != ACPI_STATE_S5) {
345 error = acpi_ReqSleepState(acpi_sc,
346 acpi_sc->acpi_suspend_sx);
347 } else {
348 printf(
349 "power off via apm suspend not supported\n");
350 error = ENXIO;
351 }
352 } else
353 error = acpi_AckSleepState(clone, 0);
235 break;
236 case APMIO_STANDBY:
237 if ((flag & FWRITE) == 0)
238 return (EPERM);
354 break;
355 case APMIO_STANDBY:
356 if ((flag & FWRITE) == 0)
357 return (EPERM);
239 if (apm_active)
240 acpi_SetSleepState(acpi_sc, acpi_sc->acpi_standby_sx);
241 else
242 error = EINVAL;
358 if (acpi_sc->acpi_next_sstate == 0) {
359 if (acpi_sc->acpi_standby_sx != ACPI_STATE_S5) {
360 error = acpi_ReqSleepState(acpi_sc,
361 acpi_sc->acpi_standby_sx);
362 } else {
363 printf(
364 "power off via apm standby not supported\n");
365 error = ENXIO;
366 }
367 } else
368 error = acpi_AckSleepState(clone, 0);
243 break;
369 break;
370 case APMIO_NEXTEVENT:
371 printf("apm nextevent start\n");
372 ACPI_LOCK(acpi);
373 if (acpi_sc->acpi_next_sstate != 0 && clone->notify_status ==
374 APM_EV_NONE) {
375 ev_info = (struct apm_event_info *)addr;
376 if (acpi_sc->acpi_next_sstate <= ACPI_STATE_S3)
377 ev_info->type = PMEV_STANDBYREQ;
378 else
379 ev_info->type = PMEV_SUSPENDREQ;
380 ev_info->index = 0;
381 clone->notify_status = APM_EV_NOTIFIED;
382 printf("apm event returning %d\n", ev_info->type);
383 } else
384 error = EAGAIN;
385 ACPI_UNLOCK(acpi);
386 break;
244 case APMIO_GETINFO_OLD:
245 if (acpi_capm_get_info(&info))
246 error = ENXIO;
247 aiop = (apm_info_old_t)addr;
248 aiop->ai_major = info.ai_major;
249 aiop->ai_minor = info.ai_minor;
250 aiop->ai_acline = info.ai_acline;
251 aiop->ai_batt_stat = info.ai_batt_stat;

--- 43 unchanged lines hidden (view full) ---

295apmwrite(struct cdev *dev, struct uio *uio, int ioflag)
296{
297 return (uio->uio_resid);
298}
299
300static int
301apmpoll(struct cdev *dev, int events, d_thread_t *td)
302{
387 case APMIO_GETINFO_OLD:
388 if (acpi_capm_get_info(&info))
389 error = ENXIO;
390 aiop = (apm_info_old_t)addr;
391 aiop->ai_major = info.ai_major;
392 aiop->ai_minor = info.ai_minor;
393 aiop->ai_acline = info.ai_acline;
394 aiop->ai_batt_stat = info.ai_batt_stat;

--- 43 unchanged lines hidden (view full) ---

438apmwrite(struct cdev *dev, struct uio *uio, int ioflag)
439{
440 return (uio->uio_resid);
441}
442
443static int
444apmpoll(struct cdev *dev, int events, d_thread_t *td)
445{
446 struct apm_clone_data *clone;
447 int revents;
448
449 revents = 0;
450 ACPI_LOCK(acpi);
451 clone = dev->si_drv1;
452 if (clone->acpi_sc->acpi_next_sstate)
453 revents |= events & (POLLIN | POLLRDNORM);
454 else
455 selrecord(td, &clone->sel_read);
456 ACPI_UNLOCK(acpi);
457 return (revents);
458}
459
460static int
461apmkqfilter(struct cdev *dev, struct knote *kn)
462{
463 struct apm_clone_data *clone;
464
465 ACPI_LOCK(acpi);
466 clone = dev->si_drv1;
467 kn->kn_hook = clone;
468 kn->kn_fop = &apm_readfiltops;
469 knlist_add(&clone->sel_read.si_note, kn, 0);
470 ACPI_UNLOCK(acpi);
303 return (0);
304}
305
306static void
471 return (0);
472}
473
474static void
307acpi_capm_init(struct acpi_softc *sc)
475apmreadfiltdetach(struct knote *kn)
308{
476{
309 make_dev(&apm_cdevsw, 0, 0, 5, 0664, "apm");
477 struct apm_clone_data *clone;
478
479 ACPI_LOCK(acpi);
480 clone = kn->kn_hook;
481 knlist_remove(&clone->sel_read.si_note, kn, 0);
482 ACPI_UNLOCK(acpi);
310}
311
483}
484
485static int
486apmreadfilt(struct knote *kn, long hint)
487{
488 struct apm_clone_data *clone;
489 int sleeping;
490
491 ACPI_LOCK(acpi);
492 clone = kn->kn_hook;
493 sleeping = clone->acpi_sc->acpi_next_sstate ? 1 : 0;
494 ACPI_UNLOCK(acpi);
495 return (sleeping);
496}
497
312int
313acpi_machdep_init(device_t dev)
314{
498int
499acpi_machdep_init(device_t dev)
500{
315 struct acpi_softc *sc;
501 struct acpi_softc *acpi_sc;
316
502
317 sc = devclass_get_softc(devclass_find("acpi"), 0);
318 acpi_capm_init(sc);
503 acpi_sc = devclass_get_softc(devclass_find("acpi"), 0);
319
504
320 acpi_install_wakeup_handler(sc);
505 /* Create a clone for /dev/acpi also. */
506 STAILQ_INIT(&acpi_sc->apm_cdevs);
507 acpi_sc->acpi_clone = apm_create_clone(acpi_sc->acpi_dev_t, acpi_sc);
508 clone_setup(&apm_clones);
509 EVENTHANDLER_REGISTER(dev_clone, apm_clone, 0, 1000);
510 acpi_install_wakeup_handler(acpi_sc);
321
322 if (intr_model == ACPI_INTR_PIC)
323 BUS_CONFIG_INTR(dev, AcpiGbl_FADT.SciInterrupt,
324 INTR_TRIGGER_LEVEL, INTR_POLARITY_LOW);
325 else
326 acpi_SetIntrModel(intr_model);
327
511
512 if (intr_model == ACPI_INTR_PIC)
513 BUS_CONFIG_INTR(dev, AcpiGbl_FADT.SciInterrupt,
514 INTR_TRIGGER_LEVEL, INTR_POLARITY_LOW);
515 else
516 acpi_SetIntrModel(intr_model);
517
328 SYSCTL_ADD_UINT(&sc->acpi_sysctl_ctx,
329 SYSCTL_CHILDREN(sc->acpi_sysctl_tree), OID_AUTO,
518 SYSCTL_ADD_UINT(&acpi_sc->acpi_sysctl_ctx,
519 SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO,
330 "reset_video", CTLFLAG_RW, &acpi_reset_video, 0,
331 "Call the VESA reset BIOS vector on the resume path");
332
333 return (0);
334}
335
336void
337acpi_SetDefaultIntrModel(int model)

--- 32 unchanged lines hidden --- 		520 "reset_video", CTLFLAG_RW, &acpi_reset_video, 0,
521 "Call the VESA reset BIOS vector on the resume path");
522
523 return (0);
524}
525
526void
527acpi_SetDefaultIntrModel(int model)

--- 32 unchanged lines hidden ---