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
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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>
|
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/module.h>
38#include <sys/poll.h>
39#include <sys/sysctl.h>
40#include <sys/uio.h>
41#include <vm/vm.h>
42#include <vm/pmap.h>
43
44#include <contrib/dev/acpica/acpi.h>
45#include <dev/acpica/acpivar.h>
46#include <dev/acpica/acpiio.h>
47
48#include <machine/nexusvar.h>
49
50/*
51 * APM driver emulation
52 */
53
54#include <machine/apm_bios.h>
55#include <machine/pc/bios.h>
56
57#include <i386/bios/apm.h>
58
59SYSCTL_DECL(_debug_acpi);
60
61uint32_t acpi_resume_beep;
62TUNABLE_INT("debug.acpi.resume_beep", &acpi_resume_beep);
63SYSCTL_UINT(_debug_acpi, OID_AUTO, resume_beep, CTLFLAG_RW, &acpi_resume_beep,
64 0, "Beep the PC speaker when resuming");
65uint32_t acpi_reset_video;
66TUNABLE_INT("hw.acpi.reset_video", &acpi_reset_video);
67
68static int intr_model = ACPI_INTR_PIC;
69static int apm_active;
70static struct clonedevs *apm_clones;
71
72MALLOC_DEFINE(M_APMDEV, "apmdev", "APM device emulation");
73
74static d_open_t apmopen;
75static d_close_t apmclose;
76static d_write_t apmwrite;
77static d_ioctl_t apmioctl;
78static d_poll_t apmpoll;
79static d_kqfilter_t apmkqfilter;
80static void apmreadfiltdetach(struct knote *kn);
81static int apmreadfilt(struct knote *kn, long hint);
82static struct filterops apm_readfiltops =
83 { 1, NULL, apmreadfiltdetach, apmreadfilt };
84
85static struct cdevsw apm_cdevsw = {
86 .d_version = D_VERSION,
87 .d_flags = D_TRACKCLOSE | D_NEEDMINOR,
88 .d_open = apmopen,
89 .d_close = apmclose,
90 .d_write = apmwrite,
91 .d_ioctl = apmioctl,
92 .d_poll = apmpoll,
93 .d_name = "apm",
94 .d_kqfilter = apmkqfilter
95};
96
97static int
98acpi_capm_convert_battstate(struct acpi_battinfo *battp)
99{
100 int state;
101
102 state = APM_UNKNOWN;
103
104 if (battp->state & ACPI_BATT_STAT_DISCHARG) {
105 if (battp->cap >= 50)
106 state = 0; /* high */
107 else
108 state = 1; /* low */
109 }
110 if (battp->state & ACPI_BATT_STAT_CRITICAL)
111 state = 2; /* critical */
112 if (battp->state & ACPI_BATT_STAT_CHARGING)
113 state = 3; /* charging */
114
115 /* If still unknown, determine it based on the battery capacity. */
116 if (state == APM_UNKNOWN) {
117 if (battp->cap >= 50)
118 state = 0; /* high */
119 else
120 state = 1; /* low */
121 }
122
123 return (state);
124}
125
126static int
127acpi_capm_convert_battflags(struct acpi_battinfo *battp)
128{
129 int flags;
130
131 flags = 0;
132
133 if (battp->cap >= 50)
134 flags |= APM_BATT_HIGH;
135 else {
136 if (battp->state & ACPI_BATT_STAT_CRITICAL)
137 flags |= APM_BATT_CRITICAL;
138 else
139 flags |= APM_BATT_LOW;
140 }
141 if (battp->state & ACPI_BATT_STAT_CHARGING)
142 flags |= APM_BATT_CHARGING;
143 if (battp->state == ACPI_BATT_STAT_NOT_PRESENT)
144 flags = APM_BATT_NOT_PRESENT;
145
146 return (flags);
147}
148
149static int
150acpi_capm_get_info(apm_info_t aip)
151{
152 int acline;
153 struct acpi_battinfo batt;
154
155 aip->ai_infoversion = 1;
156 aip->ai_major = 1;
157 aip->ai_minor = 2;
158 aip->ai_status = apm_active;
159 aip->ai_capabilities= 0xff00; /* unknown */
160
161 if (acpi_acad_get_acline(&acline))
162 aip->ai_acline = APM_UNKNOWN; /* unknown */
163 else
164 aip->ai_acline = acline; /* on/off */
165
166 if (acpi_battery_get_battinfo(NULL, &batt) != 0) {
167 aip->ai_batt_stat = APM_UNKNOWN;
168 aip->ai_batt_life = APM_UNKNOWN;
169 aip->ai_batt_time = -1; /* unknown */
170 aip->ai_batteries = ~0U; /* unknown */
171 } else {
172 aip->ai_batt_stat = acpi_capm_convert_battstate(&batt);
173 aip->ai_batt_life = batt.cap;
174 aip->ai_batt_time = (batt.min == -1) ? -1 : batt.min * 60;
175 aip->ai_batteries = acpi_battery_get_units();
176 }
177
178 return (0);
179}
180
181static int
182acpi_capm_get_pwstatus(apm_pwstatus_t app)
183{
184 device_t dev;
185 int acline, unit, error;
186 struct acpi_battinfo batt;
187
188 if (app->ap_device != PMDV_ALLDEV &&
189 (app->ap_device < PMDV_BATT0 || app->ap_device > PMDV_BATT_ALL))
190 return (1);
191
192 if (app->ap_device == PMDV_ALLDEV)
193 error = acpi_battery_get_battinfo(NULL, &batt);
194 else {
195 unit = app->ap_device - PMDV_BATT0;
196 dev = devclass_get_device(devclass_find("battery"), unit);
197 if (dev != NULL)
198 error = acpi_battery_get_battinfo(dev, &batt);
199 else
200 error = ENXIO;
201 }
202 if (error)
203 return (1);
204
205 app->ap_batt_stat = acpi_capm_convert_battstate(&batt);
206 app->ap_batt_flag = acpi_capm_convert_battflags(&batt);
207 app->ap_batt_life = batt.cap;
208 app->ap_batt_time = (batt.min == -1) ? -1 : batt.min * 60;
209
210 if (acpi_acad_get_acline(&acline))
211 app->ap_acline = APM_UNKNOWN;
212 else
213 app->ap_acline = acline; /* on/off */
214
215 return (0);
216}
217
218/* Create single-use devices for /dev/apm and /dev/apmctl. */
219static void
220apm_clone(void *arg, struct ucred *cred, char *name, int namelen,
221 struct cdev **dev)
222{
223 int ctl_dev, unit;
224
225 if (*dev != NULL)
226 return;
227 if (strcmp(name, "apmctl") == 0)
228 ctl_dev = TRUE;
229 else if (strcmp(name, "apm") == 0)
230 ctl_dev = FALSE;
231 else
232 return;
233
234 /* Always create a new device and unit number. */
235 unit = -1;
236 if (clone_create(&apm_clones, &apm_cdevsw, &unit, dev, 0)) {
237 if (ctl_dev) {
| 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/module.h>
38#include <sys/poll.h>
39#include <sys/sysctl.h>
40#include <sys/uio.h>
41#include <vm/vm.h>
42#include <vm/pmap.h>
43
44#include <contrib/dev/acpica/acpi.h>
45#include <dev/acpica/acpivar.h>
46#include <dev/acpica/acpiio.h>
47
48#include <machine/nexusvar.h>
49
50/*
51 * APM driver emulation
52 */
53
54#include <machine/apm_bios.h>
55#include <machine/pc/bios.h>
56
57#include <i386/bios/apm.h>
58
59SYSCTL_DECL(_debug_acpi);
60
61uint32_t acpi_resume_beep;
62TUNABLE_INT("debug.acpi.resume_beep", &acpi_resume_beep);
63SYSCTL_UINT(_debug_acpi, OID_AUTO, resume_beep, CTLFLAG_RW, &acpi_resume_beep,
64 0, "Beep the PC speaker when resuming");
65uint32_t acpi_reset_video;
66TUNABLE_INT("hw.acpi.reset_video", &acpi_reset_video);
67
68static int intr_model = ACPI_INTR_PIC;
69static int apm_active;
70static struct clonedevs *apm_clones;
71
72MALLOC_DEFINE(M_APMDEV, "apmdev", "APM device emulation");
73
74static d_open_t apmopen;
75static d_close_t apmclose;
76static d_write_t apmwrite;
77static d_ioctl_t apmioctl;
78static d_poll_t apmpoll;
79static d_kqfilter_t apmkqfilter;
80static void apmreadfiltdetach(struct knote *kn);
81static int apmreadfilt(struct knote *kn, long hint);
82static struct filterops apm_readfiltops =
83 { 1, NULL, apmreadfiltdetach, apmreadfilt };
84
85static struct cdevsw apm_cdevsw = {
86 .d_version = D_VERSION,
87 .d_flags = D_TRACKCLOSE | D_NEEDMINOR,
88 .d_open = apmopen,
89 .d_close = apmclose,
90 .d_write = apmwrite,
91 .d_ioctl = apmioctl,
92 .d_poll = apmpoll,
93 .d_name = "apm",
94 .d_kqfilter = apmkqfilter
95};
96
97static int
98acpi_capm_convert_battstate(struct acpi_battinfo *battp)
99{
100 int state;
101
102 state = APM_UNKNOWN;
103
104 if (battp->state & ACPI_BATT_STAT_DISCHARG) {
105 if (battp->cap >= 50)
106 state = 0; /* high */
107 else
108 state = 1; /* low */
109 }
110 if (battp->state & ACPI_BATT_STAT_CRITICAL)
111 state = 2; /* critical */
112 if (battp->state & ACPI_BATT_STAT_CHARGING)
113 state = 3; /* charging */
114
115 /* If still unknown, determine it based on the battery capacity. */
116 if (state == APM_UNKNOWN) {
117 if (battp->cap >= 50)
118 state = 0; /* high */
119 else
120 state = 1; /* low */
121 }
122
123 return (state);
124}
125
126static int
127acpi_capm_convert_battflags(struct acpi_battinfo *battp)
128{
129 int flags;
130
131 flags = 0;
132
133 if (battp->cap >= 50)
134 flags |= APM_BATT_HIGH;
135 else {
136 if (battp->state & ACPI_BATT_STAT_CRITICAL)
137 flags |= APM_BATT_CRITICAL;
138 else
139 flags |= APM_BATT_LOW;
140 }
141 if (battp->state & ACPI_BATT_STAT_CHARGING)
142 flags |= APM_BATT_CHARGING;
143 if (battp->state == ACPI_BATT_STAT_NOT_PRESENT)
144 flags = APM_BATT_NOT_PRESENT;
145
146 return (flags);
147}
148
149static int
150acpi_capm_get_info(apm_info_t aip)
151{
152 int acline;
153 struct acpi_battinfo batt;
154
155 aip->ai_infoversion = 1;
156 aip->ai_major = 1;
157 aip->ai_minor = 2;
158 aip->ai_status = apm_active;
159 aip->ai_capabilities= 0xff00; /* unknown */
160
161 if (acpi_acad_get_acline(&acline))
162 aip->ai_acline = APM_UNKNOWN; /* unknown */
163 else
164 aip->ai_acline = acline; /* on/off */
165
166 if (acpi_battery_get_battinfo(NULL, &batt) != 0) {
167 aip->ai_batt_stat = APM_UNKNOWN;
168 aip->ai_batt_life = APM_UNKNOWN;
169 aip->ai_batt_time = -1; /* unknown */
170 aip->ai_batteries = ~0U; /* unknown */
171 } else {
172 aip->ai_batt_stat = acpi_capm_convert_battstate(&batt);
173 aip->ai_batt_life = batt.cap;
174 aip->ai_batt_time = (batt.min == -1) ? -1 : batt.min * 60;
175 aip->ai_batteries = acpi_battery_get_units();
176 }
177
178 return (0);
179}
180
181static int
182acpi_capm_get_pwstatus(apm_pwstatus_t app)
183{
184 device_t dev;
185 int acline, unit, error;
186 struct acpi_battinfo batt;
187
188 if (app->ap_device != PMDV_ALLDEV &&
189 (app->ap_device < PMDV_BATT0 || app->ap_device > PMDV_BATT_ALL))
190 return (1);
191
192 if (app->ap_device == PMDV_ALLDEV)
193 error = acpi_battery_get_battinfo(NULL, &batt);
194 else {
195 unit = app->ap_device - PMDV_BATT0;
196 dev = devclass_get_device(devclass_find("battery"), unit);
197 if (dev != NULL)
198 error = acpi_battery_get_battinfo(dev, &batt);
199 else
200 error = ENXIO;
201 }
202 if (error)
203 return (1);
204
205 app->ap_batt_stat = acpi_capm_convert_battstate(&batt);
206 app->ap_batt_flag = acpi_capm_convert_battflags(&batt);
207 app->ap_batt_life = batt.cap;
208 app->ap_batt_time = (batt.min == -1) ? -1 : batt.min * 60;
209
210 if (acpi_acad_get_acline(&acline))
211 app->ap_acline = APM_UNKNOWN;
212 else
213 app->ap_acline = acline; /* on/off */
214
215 return (0);
216}
217
218/* Create single-use devices for /dev/apm and /dev/apmctl. */
219static void
220apm_clone(void *arg, struct ucred *cred, char *name, int namelen,
221 struct cdev **dev)
222{
223 int ctl_dev, unit;
224
225 if (*dev != NULL)
226 return;
227 if (strcmp(name, "apmctl") == 0)
228 ctl_dev = TRUE;
229 else if (strcmp(name, "apm") == 0)
230 ctl_dev = FALSE;
231 else
232 return;
233
234 /* Always create a new device and unit number. */
235 unit = -1;
236 if (clone_create(&apm_clones, &apm_cdevsw, &unit, dev, 0)) {
237 if (ctl_dev) {
|
242 UID_ROOT, GID_OPERATOR, 0664, "apm%d", unit);
243 }
244 if (*dev != NULL) {
245 dev_ref(*dev);
246 (*dev)->si_flags |= SI_CHEAPCLONE;
247 }
248 }
249}
250
251/* Create a struct for tracking per-device suspend notification. */
252static struct apm_clone_data *
253apm_create_clone(struct cdev *dev, struct acpi_softc *acpi_sc)
254{
255 struct apm_clone_data *clone;
256
257 clone = malloc(sizeof(*clone), M_APMDEV, M_WAITOK);
258 clone->cdev = dev;
259 clone->acpi_sc = acpi_sc;
260 clone->notify_status = APM_EV_NONE;
261 bzero(&clone->sel_read, sizeof(clone->sel_read));
262 knlist_init(&clone->sel_read.si_note, &acpi_mutex, NULL, NULL, NULL);
263
264 /*
265 * The acpi device is always managed by devd(8) and is considered
266 * writable (i.e., ack is required to allow suspend to proceed.)
267 */
268 if (strcmp("acpi", devtoname(dev)) == 0)
269 clone->flags = ACPI_EVF_DEVD | ACPI_EVF_WRITE;
270 else
271 clone->flags = ACPI_EVF_NONE;
272
273 ACPI_LOCK(acpi);
274 STAILQ_INSERT_TAIL(&acpi_sc->apm_cdevs, clone, entries);
275 ACPI_UNLOCK(acpi);
276 return (clone);
277}
278
279static int
280apmopen(struct cdev *dev, int flag, int fmt, d_thread_t *td)
281{
282 struct acpi_softc *acpi_sc;
283 struct apm_clone_data *clone;
284
285 acpi_sc = devclass_get_softc(devclass_find("acpi"), 0);
286 clone = apm_create_clone(dev, acpi_sc);
287 dev->si_drv1 = clone;
288
289 /* If the device is opened for write, record that. */
290 if ((flag & FWRITE) != 0)
291 clone->flags |= ACPI_EVF_WRITE;
292
293 return (0);
294}
295
296static int
297apmclose(struct cdev *dev, int flag, int fmt, d_thread_t *td)
298{
299 struct apm_clone_data *clone;
300 struct acpi_softc *acpi_sc;
301
302 clone = dev->si_drv1;
303 acpi_sc = clone->acpi_sc;
304
305 /* We are about to lose a reference so check if suspend should occur */
306 if (acpi_sc->acpi_next_sstate != 0 &&
307 clone->notify_status != APM_EV_ACKED)
308 acpi_AckSleepState(clone, 0);
309
310 /* Remove this clone's data from the list and free it. */
311 ACPI_LOCK(acpi);
312 STAILQ_REMOVE(&acpi_sc->apm_cdevs, clone, apm_clone_data, entries);
313 knlist_destroy(&clone->sel_read.si_note);
314 ACPI_UNLOCK(acpi);
315 free(clone, M_APMDEV);
316 destroy_dev_sched(dev);
317 return (0);
318}
319
320static int
321apmioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, d_thread_t *td)
322{
323 int error;
324 struct apm_clone_data *clone;
325 struct acpi_softc *acpi_sc;
326 struct apm_info info;
327 struct apm_event_info *ev_info;
328 apm_info_old_t aiop;
329
330 error = 0;
331 clone = dev->si_drv1;
332 acpi_sc = clone->acpi_sc;
333
334 switch (cmd) {
335 case APMIO_SUSPEND:
336 if ((flag & FWRITE) == 0)
337 return (EPERM);
338 if (acpi_sc->acpi_next_sstate == 0) {
339 if (acpi_sc->acpi_suspend_sx != ACPI_STATE_S5) {
340 error = acpi_ReqSleepState(acpi_sc,
341 acpi_sc->acpi_suspend_sx);
342 } else {
343 printf(
344 "power off via apm suspend not supported\n");
345 error = ENXIO;
346 }
347 } else
348 error = acpi_AckSleepState(clone, 0);
349 break;
350 case APMIO_STANDBY:
351 if ((flag & FWRITE) == 0)
352 return (EPERM);
353 if (acpi_sc->acpi_next_sstate == 0) {
354 if (acpi_sc->acpi_standby_sx != ACPI_STATE_S5) {
355 error = acpi_ReqSleepState(acpi_sc,
356 acpi_sc->acpi_standby_sx);
357 } else {
358 printf(
359 "power off via apm standby not supported\n");
360 error = ENXIO;
361 }
362 } else
363 error = acpi_AckSleepState(clone, 0);
364 break;
365 case APMIO_NEXTEVENT:
366 printf("apm nextevent start\n");
367 ACPI_LOCK(acpi);
368 if (acpi_sc->acpi_next_sstate != 0 && clone->notify_status ==
369 APM_EV_NONE) {
370 ev_info = (struct apm_event_info *)addr;
371 if (acpi_sc->acpi_next_sstate <= ACPI_STATE_S3)
372 ev_info->type = PMEV_STANDBYREQ;
373 else
374 ev_info->type = PMEV_SUSPENDREQ;
375 ev_info->index = 0;
376 clone->notify_status = APM_EV_NOTIFIED;
377 printf("apm event returning %d\n", ev_info->type);
378 } else
379 error = EAGAIN;
380 ACPI_UNLOCK(acpi);
381 break;
382 case APMIO_GETINFO_OLD:
383 if (acpi_capm_get_info(&info))
384 error = ENXIO;
385 aiop = (apm_info_old_t)addr;
386 aiop->ai_major = info.ai_major;
387 aiop->ai_minor = info.ai_minor;
388 aiop->ai_acline = info.ai_acline;
389 aiop->ai_batt_stat = info.ai_batt_stat;
390 aiop->ai_batt_life = info.ai_batt_life;
391 aiop->ai_status = info.ai_status;
392 break;
393 case APMIO_GETINFO:
394 if (acpi_capm_get_info((apm_info_t)addr))
395 error = ENXIO;
396 break;
397 case APMIO_GETPWSTATUS:
398 if (acpi_capm_get_pwstatus((apm_pwstatus_t)addr))
399 error = ENXIO;
400 break;
401 case APMIO_ENABLE:
402 if ((flag & FWRITE) == 0)
403 return (EPERM);
404 apm_active = 1;
405 break;
406 case APMIO_DISABLE:
407 if ((flag & FWRITE) == 0)
408 return (EPERM);
409 apm_active = 0;
410 break;
411 case APMIO_HALTCPU:
412 break;
413 case APMIO_NOTHALTCPU:
414 break;
415 case APMIO_DISPLAY:
416 if ((flag & FWRITE) == 0)
417 return (EPERM);
418 break;
419 case APMIO_BIOS:
420 if ((flag & FWRITE) == 0)
421 return (EPERM);
422 bzero(addr, sizeof(struct apm_bios_arg));
423 break;
424 default:
425 error = EINVAL;
426 break;
427 }
428
429 return (error);
430}
431
432static int
433apmwrite(struct cdev *dev, struct uio *uio, int ioflag)
434{
435 return (uio->uio_resid);
436}
437
438static int
439apmpoll(struct cdev *dev, int events, d_thread_t *td)
440{
441 struct apm_clone_data *clone;
442 int revents;
443
444 revents = 0;
445 ACPI_LOCK(acpi);
446 clone = dev->si_drv1;
447 if (clone->acpi_sc->acpi_next_sstate)
448 revents |= events & (POLLIN | POLLRDNORM);
449 else
450 selrecord(td, &clone->sel_read);
451 ACPI_UNLOCK(acpi);
452 return (revents);
453}
454
455static int
456apmkqfilter(struct cdev *dev, struct knote *kn)
457{
458 struct apm_clone_data *clone;
459
460 ACPI_LOCK(acpi);
461 clone = dev->si_drv1;
462 kn->kn_hook = clone;
463 kn->kn_fop = &apm_readfiltops;
464 knlist_add(&clone->sel_read.si_note, kn, 0);
465 ACPI_UNLOCK(acpi);
466 return (0);
467}
468
469static void
470apmreadfiltdetach(struct knote *kn)
471{
472 struct apm_clone_data *clone;
473
474 ACPI_LOCK(acpi);
475 clone = kn->kn_hook;
476 knlist_remove(&clone->sel_read.si_note, kn, 0);
477 ACPI_UNLOCK(acpi);
478}
479
480static int
481apmreadfilt(struct knote *kn, long hint)
482{
483 struct apm_clone_data *clone;
484 int sleeping;
485
486 ACPI_LOCK(acpi);
487 clone = kn->kn_hook;
488 sleeping = clone->acpi_sc->acpi_next_sstate ? 1 : 0;
489 ACPI_UNLOCK(acpi);
490 return (sleeping);
491}
492
493int
494acpi_machdep_init(device_t dev)
495{
496 struct acpi_softc *acpi_sc;
497
498 acpi_sc = devclass_get_softc(devclass_find("acpi"), 0);
499
500 /* Create a clone for /dev/acpi also. */
501 STAILQ_INIT(&acpi_sc->apm_cdevs);
502 acpi_sc->acpi_clone = apm_create_clone(acpi_sc->acpi_dev_t, acpi_sc);
503 clone_setup(&apm_clones);
504 EVENTHANDLER_REGISTER(dev_clone, apm_clone, 0, 1000);
505 acpi_install_wakeup_handler(acpi_sc);
506
507 if (intr_model == ACPI_INTR_PIC)
508 BUS_CONFIG_INTR(dev, AcpiGbl_FADT.SciInterrupt,
509 INTR_TRIGGER_LEVEL, INTR_POLARITY_LOW);
510 else
511 acpi_SetIntrModel(intr_model);
512
513 SYSCTL_ADD_UINT(&acpi_sc->acpi_sysctl_ctx,
514 SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO,
515 "reset_video", CTLFLAG_RW, &acpi_reset_video, 0,
516 "Call the VESA reset BIOS vector on the resume path");
517
518 return (0);
519}
520
521void
522acpi_SetDefaultIntrModel(int model)
523{
524
525 intr_model = model;
526}
527
528/* Check BIOS date. If 1998 or older, disable ACPI. */
529int
530acpi_machdep_quirks(int *quirks)
531{
532 char *va;
533 int year;
534
535 /* BIOS address 0xffff5 contains the date in the format mm/dd/yy. */
536 va = pmap_mapbios(0xffff0, 16);
537 sscanf(va + 11, "%2d", &year);
538 pmap_unmapbios((vm_offset_t)va, 16);
539
540 /*
541 * Date must be >= 1/1/1999 or we don't trust ACPI. Note that this
542 * check must be changed by my 114th birthday.
543 */
544 if (year > 90 && year < 99)
545 *quirks = ACPI_Q_BROKEN;
546
547 return (0);
548}
549
550void
551acpi_cpu_c1()
552{
553 __asm __volatile("sti; hlt");
554}
555
556/*
557 * ACPI nexus(4) driver.
558 */
559static int
560nexus_acpi_probe(device_t dev)
561{
562 int error;
563
564 error = acpi_identify();
565 if (error)
566 return (error);
567
568 return (BUS_PROBE_DEFAULT);
569}
570
571static int
572nexus_acpi_attach(device_t dev)
573{
574
575 nexus_init_resources();
576 bus_generic_probe(dev);
577 if (BUS_ADD_CHILD(dev, 10, "acpi", 0) == NULL)
578 panic("failed to add acpi0 device");
579
580 return (bus_generic_attach(dev));
581}
582
583static device_method_t nexus_acpi_methods[] = {
584 /* Device interface */
585 DEVMETHOD(device_probe, nexus_acpi_probe),
586 DEVMETHOD(device_attach, nexus_acpi_attach),
587
588 { 0, 0 }
589};
590
591DEFINE_CLASS_1(nexus, nexus_acpi_driver, nexus_acpi_methods, 1, nexus_driver);
592static devclass_t nexus_devclass;
593
594DRIVER_MODULE(nexus_acpi, root, nexus_acpi_driver, nexus_devclass, 0, 0);
| 242 UID_ROOT, GID_OPERATOR, 0664, "apm%d", unit);
243 }
244 if (*dev != NULL) {
245 dev_ref(*dev);
246 (*dev)->si_flags |= SI_CHEAPCLONE;
247 }
248 }
249}
250
251/* Create a struct for tracking per-device suspend notification. */
252static struct apm_clone_data *
253apm_create_clone(struct cdev *dev, struct acpi_softc *acpi_sc)
254{
255 struct apm_clone_data *clone;
256
257 clone = malloc(sizeof(*clone), M_APMDEV, M_WAITOK);
258 clone->cdev = dev;
259 clone->acpi_sc = acpi_sc;
260 clone->notify_status = APM_EV_NONE;
261 bzero(&clone->sel_read, sizeof(clone->sel_read));
262 knlist_init(&clone->sel_read.si_note, &acpi_mutex, NULL, NULL, NULL);
263
264 /*
265 * The acpi device is always managed by devd(8) and is considered
266 * writable (i.e., ack is required to allow suspend to proceed.)
267 */
268 if (strcmp("acpi", devtoname(dev)) == 0)
269 clone->flags = ACPI_EVF_DEVD | ACPI_EVF_WRITE;
270 else
271 clone->flags = ACPI_EVF_NONE;
272
273 ACPI_LOCK(acpi);
274 STAILQ_INSERT_TAIL(&acpi_sc->apm_cdevs, clone, entries);
275 ACPI_UNLOCK(acpi);
276 return (clone);
277}
278
279static int
280apmopen(struct cdev *dev, int flag, int fmt, d_thread_t *td)
281{
282 struct acpi_softc *acpi_sc;
283 struct apm_clone_data *clone;
284
285 acpi_sc = devclass_get_softc(devclass_find("acpi"), 0);
286 clone = apm_create_clone(dev, acpi_sc);
287 dev->si_drv1 = clone;
288
289 /* If the device is opened for write, record that. */
290 if ((flag & FWRITE) != 0)
291 clone->flags |= ACPI_EVF_WRITE;
292
293 return (0);
294}
295
296static int
297apmclose(struct cdev *dev, int flag, int fmt, d_thread_t *td)
298{
299 struct apm_clone_data *clone;
300 struct acpi_softc *acpi_sc;
301
302 clone = dev->si_drv1;
303 acpi_sc = clone->acpi_sc;
304
305 /* We are about to lose a reference so check if suspend should occur */
306 if (acpi_sc->acpi_next_sstate != 0 &&
307 clone->notify_status != APM_EV_ACKED)
308 acpi_AckSleepState(clone, 0);
309
310 /* Remove this clone's data from the list and free it. */
311 ACPI_LOCK(acpi);
312 STAILQ_REMOVE(&acpi_sc->apm_cdevs, clone, apm_clone_data, entries);
313 knlist_destroy(&clone->sel_read.si_note);
314 ACPI_UNLOCK(acpi);
315 free(clone, M_APMDEV);
316 destroy_dev_sched(dev);
317 return (0);
318}
319
320static int
321apmioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, d_thread_t *td)
322{
323 int error;
324 struct apm_clone_data *clone;
325 struct acpi_softc *acpi_sc;
326 struct apm_info info;
327 struct apm_event_info *ev_info;
328 apm_info_old_t aiop;
329
330 error = 0;
331 clone = dev->si_drv1;
332 acpi_sc = clone->acpi_sc;
333
334 switch (cmd) {
335 case APMIO_SUSPEND:
336 if ((flag & FWRITE) == 0)
337 return (EPERM);
338 if (acpi_sc->acpi_next_sstate == 0) {
339 if (acpi_sc->acpi_suspend_sx != ACPI_STATE_S5) {
340 error = acpi_ReqSleepState(acpi_sc,
341 acpi_sc->acpi_suspend_sx);
342 } else {
343 printf(
344 "power off via apm suspend not supported\n");
345 error = ENXIO;
346 }
347 } else
348 error = acpi_AckSleepState(clone, 0);
349 break;
350 case APMIO_STANDBY:
351 if ((flag & FWRITE) == 0)
352 return (EPERM);
353 if (acpi_sc->acpi_next_sstate == 0) {
354 if (acpi_sc->acpi_standby_sx != ACPI_STATE_S5) {
355 error = acpi_ReqSleepState(acpi_sc,
356 acpi_sc->acpi_standby_sx);
357 } else {
358 printf(
359 "power off via apm standby not supported\n");
360 error = ENXIO;
361 }
362 } else
363 error = acpi_AckSleepState(clone, 0);
364 break;
365 case APMIO_NEXTEVENT:
366 printf("apm nextevent start\n");
367 ACPI_LOCK(acpi);
368 if (acpi_sc->acpi_next_sstate != 0 && clone->notify_status ==
369 APM_EV_NONE) {
370 ev_info = (struct apm_event_info *)addr;
371 if (acpi_sc->acpi_next_sstate <= ACPI_STATE_S3)
372 ev_info->type = PMEV_STANDBYREQ;
373 else
374 ev_info->type = PMEV_SUSPENDREQ;
375 ev_info->index = 0;
376 clone->notify_status = APM_EV_NOTIFIED;
377 printf("apm event returning %d\n", ev_info->type);
378 } else
379 error = EAGAIN;
380 ACPI_UNLOCK(acpi);
381 break;
382 case APMIO_GETINFO_OLD:
383 if (acpi_capm_get_info(&info))
384 error = ENXIO;
385 aiop = (apm_info_old_t)addr;
386 aiop->ai_major = info.ai_major;
387 aiop->ai_minor = info.ai_minor;
388 aiop->ai_acline = info.ai_acline;
389 aiop->ai_batt_stat = info.ai_batt_stat;
390 aiop->ai_batt_life = info.ai_batt_life;
391 aiop->ai_status = info.ai_status;
392 break;
393 case APMIO_GETINFO:
394 if (acpi_capm_get_info((apm_info_t)addr))
395 error = ENXIO;
396 break;
397 case APMIO_GETPWSTATUS:
398 if (acpi_capm_get_pwstatus((apm_pwstatus_t)addr))
399 error = ENXIO;
400 break;
401 case APMIO_ENABLE:
402 if ((flag & FWRITE) == 0)
403 return (EPERM);
404 apm_active = 1;
405 break;
406 case APMIO_DISABLE:
407 if ((flag & FWRITE) == 0)
408 return (EPERM);
409 apm_active = 0;
410 break;
411 case APMIO_HALTCPU:
412 break;
413 case APMIO_NOTHALTCPU:
414 break;
415 case APMIO_DISPLAY:
416 if ((flag & FWRITE) == 0)
417 return (EPERM);
418 break;
419 case APMIO_BIOS:
420 if ((flag & FWRITE) == 0)
421 return (EPERM);
422 bzero(addr, sizeof(struct apm_bios_arg));
423 break;
424 default:
425 error = EINVAL;
426 break;
427 }
428
429 return (error);
430}
431
432static int
433apmwrite(struct cdev *dev, struct uio *uio, int ioflag)
434{
435 return (uio->uio_resid);
436}
437
438static int
439apmpoll(struct cdev *dev, int events, d_thread_t *td)
440{
441 struct apm_clone_data *clone;
442 int revents;
443
444 revents = 0;
445 ACPI_LOCK(acpi);
446 clone = dev->si_drv1;
447 if (clone->acpi_sc->acpi_next_sstate)
448 revents |= events & (POLLIN | POLLRDNORM);
449 else
450 selrecord(td, &clone->sel_read);
451 ACPI_UNLOCK(acpi);
452 return (revents);
453}
454
455static int
456apmkqfilter(struct cdev *dev, struct knote *kn)
457{
458 struct apm_clone_data *clone;
459
460 ACPI_LOCK(acpi);
461 clone = dev->si_drv1;
462 kn->kn_hook = clone;
463 kn->kn_fop = &apm_readfiltops;
464 knlist_add(&clone->sel_read.si_note, kn, 0);
465 ACPI_UNLOCK(acpi);
466 return (0);
467}
468
469static void
470apmreadfiltdetach(struct knote *kn)
471{
472 struct apm_clone_data *clone;
473
474 ACPI_LOCK(acpi);
475 clone = kn->kn_hook;
476 knlist_remove(&clone->sel_read.si_note, kn, 0);
477 ACPI_UNLOCK(acpi);
478}
479
480static int
481apmreadfilt(struct knote *kn, long hint)
482{
483 struct apm_clone_data *clone;
484 int sleeping;
485
486 ACPI_LOCK(acpi);
487 clone = kn->kn_hook;
488 sleeping = clone->acpi_sc->acpi_next_sstate ? 1 : 0;
489 ACPI_UNLOCK(acpi);
490 return (sleeping);
491}
492
493int
494acpi_machdep_init(device_t dev)
495{
496 struct acpi_softc *acpi_sc;
497
498 acpi_sc = devclass_get_softc(devclass_find("acpi"), 0);
499
500 /* Create a clone for /dev/acpi also. */
501 STAILQ_INIT(&acpi_sc->apm_cdevs);
502 acpi_sc->acpi_clone = apm_create_clone(acpi_sc->acpi_dev_t, acpi_sc);
503 clone_setup(&apm_clones);
504 EVENTHANDLER_REGISTER(dev_clone, apm_clone, 0, 1000);
505 acpi_install_wakeup_handler(acpi_sc);
506
507 if (intr_model == ACPI_INTR_PIC)
508 BUS_CONFIG_INTR(dev, AcpiGbl_FADT.SciInterrupt,
509 INTR_TRIGGER_LEVEL, INTR_POLARITY_LOW);
510 else
511 acpi_SetIntrModel(intr_model);
512
513 SYSCTL_ADD_UINT(&acpi_sc->acpi_sysctl_ctx,
514 SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree), OID_AUTO,
515 "reset_video", CTLFLAG_RW, &acpi_reset_video, 0,
516 "Call the VESA reset BIOS vector on the resume path");
517
518 return (0);
519}
520
521void
522acpi_SetDefaultIntrModel(int model)
523{
524
525 intr_model = model;
526}
527
528/* Check BIOS date. If 1998 or older, disable ACPI. */
529int
530acpi_machdep_quirks(int *quirks)
531{
532 char *va;
533 int year;
534
535 /* BIOS address 0xffff5 contains the date in the format mm/dd/yy. */
536 va = pmap_mapbios(0xffff0, 16);
537 sscanf(va + 11, "%2d", &year);
538 pmap_unmapbios((vm_offset_t)va, 16);
539
540 /*
541 * Date must be >= 1/1/1999 or we don't trust ACPI. Note that this
542 * check must be changed by my 114th birthday.
543 */
544 if (year > 90 && year < 99)
545 *quirks = ACPI_Q_BROKEN;
546
547 return (0);
548}
549
550void
551acpi_cpu_c1()
552{
553 __asm __volatile("sti; hlt");
554}
555
556/*
557 * ACPI nexus(4) driver.
558 */
559static int
560nexus_acpi_probe(device_t dev)
561{
562 int error;
563
564 error = acpi_identify();
565 if (error)
566 return (error);
567
568 return (BUS_PROBE_DEFAULT);
569}
570
571static int
572nexus_acpi_attach(device_t dev)
573{
574
575 nexus_init_resources();
576 bus_generic_probe(dev);
577 if (BUS_ADD_CHILD(dev, 10, "acpi", 0) == NULL)
578 panic("failed to add acpi0 device");
579
580 return (bus_generic_attach(dev));
581}
582
583static device_method_t nexus_acpi_methods[] = {
584 /* Device interface */
585 DEVMETHOD(device_probe, nexus_acpi_probe),
586 DEVMETHOD(device_attach, nexus_acpi_attach),
587
588 { 0, 0 }
589};
590
591DEFINE_CLASS_1(nexus, nexus_acpi_driver, nexus_acpi_methods, 1, nexus_driver);
592static devclass_t nexus_devclass;
593
594DRIVER_MODULE(nexus_acpi, root, nexus_acpi_driver, nexus_devclass, 0, 0);
|