2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2007, 2008 Rui Paulo <rpaulo@FreeBSD.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
31 * Driver for Apple's System Management Console (SMC).
32 * SMC can be found on the MacBook, MacBook Pro and Mac Mini.
34 * Inspired by the Linux applesmc driver.
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
40 #include <sys/param.h>
43 #include <sys/kernel.h>
45 #include <sys/malloc.h>
46 #include <sys/module.h>
47 #include <sys/mutex.h>
48 #include <sys/sysctl.h>
49 #include <sys/systm.h>
50 #include <sys/taskqueue.h>
53 #include <machine/resource.h>
55 #include <contrib/dev/acpica/include/acpi.h>
57 #include <dev/acpica/acpivar.h>
58 #include <dev/asmc/asmcvar.h>
63 static int asmc_probe(device_t dev);
64 static int asmc_attach(device_t dev);
65 static int asmc_detach(device_t dev);
66 static int asmc_resume(device_t dev);
71 static int asmc_init(device_t dev);
72 static int asmc_command(device_t dev, uint8_t command);
73 static int asmc_wait(device_t dev, uint8_t val);
74 static int asmc_wait_ack(device_t dev, uint8_t val, int amount);
75 static int asmc_key_write(device_t dev, const char *key, uint8_t *buf,
77 static int asmc_key_read(device_t dev, const char *key, uint8_t *buf,
79 static int asmc_fan_count(device_t dev);
80 static int asmc_fan_getvalue(device_t dev, const char *key, int fan);
81 static int asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed);
82 static int asmc_temp_getvalue(device_t dev, const char *key);
83 static int asmc_sms_read(device_t, const char *key, int16_t *val);
84 static void asmc_sms_calibrate(device_t dev);
85 static int asmc_sms_intrfast(void *arg);
86 static void asmc_sms_printintr(device_t dev, uint8_t);
87 static void asmc_sms_task(void *arg, int pending);
89 void asmc_dumpall(device_t);
90 static int asmc_key_dump(device_t, int);
96 static int asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS);
97 static int asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS);
98 static int asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS);
99 static int asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS);
100 static int asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS);
101 static int asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS);
102 static int asmc_temp_sysctl(SYSCTL_HANDLER_ARGS);
103 static int asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS);
104 static int asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS);
105 static int asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS);
106 static int asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS);
107 static int asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS);
108 static int asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS);
111 const char *smc_model; /* smbios.system.product env var. */
112 const char *smc_desc; /* driver description */
114 /* Helper functions */
115 int (*smc_sms_x)(SYSCTL_HANDLER_ARGS);
116 int (*smc_sms_y)(SYSCTL_HANDLER_ARGS);
117 int (*smc_sms_z)(SYSCTL_HANDLER_ARGS);
118 int (*smc_fan_id)(SYSCTL_HANDLER_ARGS);
119 int (*smc_fan_speed)(SYSCTL_HANDLER_ARGS);
120 int (*smc_fan_safespeed)(SYSCTL_HANDLER_ARGS);
121 int (*smc_fan_minspeed)(SYSCTL_HANDLER_ARGS);
122 int (*smc_fan_maxspeed)(SYSCTL_HANDLER_ARGS);
123 int (*smc_fan_targetspeed)(SYSCTL_HANDLER_ARGS);
124 int (*smc_light_left)(SYSCTL_HANDLER_ARGS);
125 int (*smc_light_right)(SYSCTL_HANDLER_ARGS);
126 int (*smc_light_control)(SYSCTL_HANDLER_ARGS);
128 const char *smc_temps[ASMC_TEMP_MAX];
129 const char *smc_tempnames[ASMC_TEMP_MAX];
130 const char *smc_tempdescs[ASMC_TEMP_MAX];
133 static struct asmc_model *asmc_match(device_t dev);
135 #define ASMC_SMS_FUNCS asmc_mb_sysctl_sms_x, asmc_mb_sysctl_sms_y, \
138 #define ASMC_SMS_FUNCS_DISABLED NULL,NULL,NULL
140 #define ASMC_FAN_FUNCS asmc_mb_sysctl_fanid, asmc_mb_sysctl_fanspeed, asmc_mb_sysctl_fansafespeed, \
141 asmc_mb_sysctl_fanminspeed, \
142 asmc_mb_sysctl_fanmaxspeed, \
143 asmc_mb_sysctl_fantargetspeed
145 #define ASMC_FAN_FUNCS2 asmc_mb_sysctl_fanid, asmc_mb_sysctl_fanspeed, NULL, \
146 asmc_mb_sysctl_fanminspeed, \
147 asmc_mb_sysctl_fanmaxspeed, \
148 asmc_mb_sysctl_fantargetspeed
150 #define ASMC_LIGHT_FUNCS asmc_mbp_sysctl_light_left, \
151 asmc_mbp_sysctl_light_right, \
152 asmc_mbp_sysctl_light_control
154 struct asmc_model asmc_models[] = {
156 "MacBook1,1", "Apple SMC MacBook Core Duo",
157 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL,
158 ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS
162 "MacBook2,1", "Apple SMC MacBook Core 2 Duo",
163 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL,
164 ASMC_MB_TEMPS, ASMC_MB_TEMPNAMES, ASMC_MB_TEMPDESCS
168 "MacBook3,1", "Apple SMC MacBook Core 2 Duo",
169 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL,
170 ASMC_MB31_TEMPS, ASMC_MB31_TEMPNAMES, ASMC_MB31_TEMPDESCS
174 "MacBookPro1,1", "Apple SMC MacBook Pro Core Duo (15-inch)",
175 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
176 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
180 "MacBookPro1,2", "Apple SMC MacBook Pro Core Duo (17-inch)",
181 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
182 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
186 "MacBookPro2,1", "Apple SMC MacBook Pro Core 2 Duo (17-inch)",
187 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
188 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
192 "MacBookPro2,2", "Apple SMC MacBook Pro Core 2 Duo (15-inch)",
193 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
194 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
198 "MacBookPro3,1", "Apple SMC MacBook Pro Core 2 Duo (15-inch LED)",
199 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
200 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
204 "MacBookPro3,2", "Apple SMC MacBook Pro Core 2 Duo (17-inch HD)",
205 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
206 ASMC_MBP_TEMPS, ASMC_MBP_TEMPNAMES, ASMC_MBP_TEMPDESCS
210 "MacBookPro4,1", "Apple SMC MacBook Pro Core 2 Duo (Penryn)",
211 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
212 ASMC_MBP4_TEMPS, ASMC_MBP4_TEMPNAMES, ASMC_MBP4_TEMPDESCS
216 "MacBookPro5,1", "Apple SMC MacBook Pro Core 2 Duo (2008/2009)",
217 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
218 ASMC_MBP5_TEMPS, ASMC_MBP5_TEMPNAMES, ASMC_MBP5_TEMPDESCS
222 "MacBookPro8,1", "Apple SMC MacBook Pro (early 2011, 13-inch)",
223 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS,
224 ASMC_MBP81_TEMPS, ASMC_MBP81_TEMPNAMES, ASMC_MBP81_TEMPDESCS
228 "MacBookPro8,2", "Apple SMC MacBook Pro (early 2011)",
229 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
230 ASMC_MBP82_TEMPS, ASMC_MBP82_TEMPNAMES, ASMC_MBP82_TEMPDESCS
234 "MacBookPro11,2", "Apple SMC MacBook Pro Retina Core i7 (2013/2014)",
235 ASMC_SMS_FUNCS_DISABLED, ASMC_FAN_FUNCS2, ASMC_LIGHT_FUNCS,
236 ASMC_MBP112_TEMPS, ASMC_MBP112_TEMPNAMES, ASMC_MBP112_TEMPDESCS
240 "MacBookPro11,3", "Apple SMC MacBook Pro Retina Core i7 (2013/2014)",
241 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, ASMC_LIGHT_FUNCS,
242 ASMC_MBP113_TEMPS, ASMC_MBP113_TEMPNAMES, ASMC_MBP113_TEMPDESCS
245 /* The Mac Mini has no SMS */
247 "Macmini1,1", "Apple SMC Mac Mini",
251 ASMC_MM_TEMPS, ASMC_MM_TEMPNAMES, ASMC_MM_TEMPDESCS
254 /* The Mac Mini 3,1 has no SMS */
256 "Macmini3,1", "Apple SMC Mac Mini 3,1",
260 ASMC_MM31_TEMPS, ASMC_MM31_TEMPNAMES, ASMC_MM31_TEMPDESCS
263 /* The Mac Mini 5,2 has no SMS */
265 "Macmini5,2", "Apple SMC Mac Mini 5,2",
269 ASMC_MM52_TEMPS, ASMC_MM52_TEMPNAMES, ASMC_MM52_TEMPDESCS
272 /* Idem for the MacPro */
274 "MacPro2", "Apple SMC Mac Pro (8-core)",
278 ASMC_MP_TEMPS, ASMC_MP_TEMPNAMES, ASMC_MP_TEMPDESCS
281 /* Idem for the MacPro 2010*/
283 "MacPro5,1", "Apple SMC MacPro (2010)",
287 ASMC_MP5_TEMPS, ASMC_MP5_TEMPNAMES, ASMC_MP5_TEMPDESCS
291 "MacBookAir1,1", "Apple SMC MacBook Air",
292 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL,
293 ASMC_MBA_TEMPS, ASMC_MBA_TEMPNAMES, ASMC_MBA_TEMPDESCS
297 "MacBookAir3,1", "Apple SMC MacBook Air Core 2 Duo (Late 2010)",
298 ASMC_SMS_FUNCS, ASMC_FAN_FUNCS, NULL, NULL, NULL,
299 ASMC_MBA3_TEMPS, ASMC_MBA3_TEMPNAMES, ASMC_MBA3_TEMPDESCS
303 "MacBookAir5,1", "Apple SMC MacBook Air 11-inch (Mid 2012)",
304 ASMC_SMS_FUNCS_DISABLED,
307 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS
311 "MacBookAir5,2", "Apple SMC MacBook Air 13-inch (Mid 2012)",
312 ASMC_SMS_FUNCS_DISABLED,
315 ASMC_MBA5_TEMPS, ASMC_MBA5_TEMPNAMES, ASMC_MBA5_TEMPDESCS
319 "MacBookAir7,1", "Apple SMC MacBook Air 11-inch (Early 2015)",
320 ASMC_SMS_FUNCS_DISABLED,
323 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS
327 "MacBookAir7,2", "Apple SMC MacBook Air 13-inch (Early 2015)",
328 ASMC_SMS_FUNCS_DISABLED,
331 ASMC_MBA7_TEMPS, ASMC_MBA7_TEMPNAMES, ASMC_MBA7_TEMPDESCS
337 #undef ASMC_SMS_FUNCS
338 #undef ASMC_SMS_FUNCS_DISABLED
339 #undef ASMC_FAN_FUNCS
340 #undef ASMC_FAN_FUNCS2
341 #undef ASMC_LIGHT_FUNCS
346 static device_method_t asmc_methods[] = {
347 DEVMETHOD(device_probe, asmc_probe),
348 DEVMETHOD(device_attach, asmc_attach),
349 DEVMETHOD(device_detach, asmc_detach),
350 DEVMETHOD(device_resume, asmc_resume),
355 static driver_t asmc_driver = {
358 sizeof(struct asmc_softc)
364 #define _COMPONENT ACPI_OEM
365 ACPI_MODULE_NAME("ASMC")
367 #define ASMC_DPRINTF(str) device_printf(dev, str)
369 #define ASMC_DPRINTF(str)
372 /* NB: can't be const */
373 static char *asmc_ids[] = { "APP0001", NULL };
375 static devclass_t asmc_devclass;
377 static unsigned int light_control = 0;
379 DRIVER_MODULE(asmc, acpi, asmc_driver, asmc_devclass, NULL, NULL);
380 MODULE_DEPEND(asmc, acpi, 1, 1, 1);
382 static struct asmc_model *
383 asmc_match(device_t dev)
388 model = kern_getenv("smbios.system.product");
392 for (i = 0; asmc_models[i].smc_model; i++) {
393 if (!strncmp(model, asmc_models[i].smc_model, strlen(model))) {
395 return (&asmc_models[i]);
404 asmc_probe(device_t dev)
406 struct asmc_model *model;
409 if (resource_disabled("asmc", 0))
411 rv = ACPI_ID_PROBE(device_get_parent(dev), dev, asmc_ids, NULL);
415 model = asmc_match(dev);
417 device_printf(dev, "model not recognized\n");
420 device_set_desc(dev, model->smc_desc);
426 asmc_attach(device_t dev)
431 struct asmc_softc *sc = device_get_softc(dev);
432 struct sysctl_ctx_list *sysctlctx;
433 struct sysctl_oid *sysctlnode;
434 struct asmc_model *model;
436 sc->sc_ioport = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
437 &sc->sc_rid_port, RF_ACTIVE);
438 if (sc->sc_ioport == NULL) {
439 device_printf(dev, "unable to allocate IO port\n");
443 sysctlctx = device_get_sysctl_ctx(dev);
444 sysctlnode = device_get_sysctl_tree(dev);
446 model = asmc_match(dev);
448 mtx_init(&sc->sc_mtx, "asmc", NULL, MTX_SPIN);
450 sc->sc_model = model;
454 * dev.asmc.n.fan.* tree.
456 sc->sc_fan_tree[0] = SYSCTL_ADD_NODE(sysctlctx,
457 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "fan",
458 CTLFLAG_RD, 0, "Fan Root Tree");
460 for (i = 1; i <= sc->sc_nfan; i++) {
464 sc->sc_fan_tree[i] = SYSCTL_ADD_NODE(sysctlctx,
465 SYSCTL_CHILDREN(sc->sc_fan_tree[0]),
466 OID_AUTO, name, CTLFLAG_RD, 0,
469 SYSCTL_ADD_PROC(sysctlctx,
470 SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
471 OID_AUTO, "id", CTLTYPE_STRING | CTLFLAG_RD,
472 dev, j, model->smc_fan_id, "I",
475 SYSCTL_ADD_PROC(sysctlctx,
476 SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
477 OID_AUTO, "speed", CTLTYPE_INT | CTLFLAG_RD,
478 dev, j, model->smc_fan_speed, "I",
481 SYSCTL_ADD_PROC(sysctlctx,
482 SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
483 OID_AUTO, "safespeed",
484 CTLTYPE_INT | CTLFLAG_RD,
485 dev, j, model->smc_fan_safespeed, "I",
486 "Fan safe speed in RPM");
488 SYSCTL_ADD_PROC(sysctlctx,
489 SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
490 OID_AUTO, "minspeed",
491 CTLTYPE_INT | CTLFLAG_RW,
492 dev, j, model->smc_fan_minspeed, "I",
493 "Fan minimum speed in RPM");
495 SYSCTL_ADD_PROC(sysctlctx,
496 SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
497 OID_AUTO, "maxspeed",
498 CTLTYPE_INT | CTLFLAG_RW,
499 dev, j, model->smc_fan_maxspeed, "I",
500 "Fan maximum speed in RPM");
502 SYSCTL_ADD_PROC(sysctlctx,
503 SYSCTL_CHILDREN(sc->sc_fan_tree[i]),
504 OID_AUTO, "targetspeed",
505 CTLTYPE_INT | CTLFLAG_RW,
506 dev, j, model->smc_fan_targetspeed, "I",
507 "Fan target speed in RPM");
511 * dev.asmc.n.temp tree.
513 sc->sc_temp_tree = SYSCTL_ADD_NODE(sysctlctx,
514 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "temp",
515 CTLFLAG_RD, 0, "Temperature sensors");
517 for (i = 0; model->smc_temps[i]; i++) {
518 SYSCTL_ADD_PROC(sysctlctx,
519 SYSCTL_CHILDREN(sc->sc_temp_tree),
520 OID_AUTO, model->smc_tempnames[i],
521 CTLTYPE_INT | CTLFLAG_RD,
522 dev, i, asmc_temp_sysctl, "I",
523 model->smc_tempdescs[i]);
529 if (model->smc_light_left) {
530 sc->sc_light_tree = SYSCTL_ADD_NODE(sysctlctx,
531 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "light",
532 CTLFLAG_RD, 0, "Keyboard backlight sensors");
534 SYSCTL_ADD_PROC(sysctlctx,
535 SYSCTL_CHILDREN(sc->sc_light_tree),
536 OID_AUTO, "left", CTLTYPE_INT | CTLFLAG_RD,
537 dev, 0, model->smc_light_left, "I",
538 "Keyboard backlight left sensor");
540 SYSCTL_ADD_PROC(sysctlctx,
541 SYSCTL_CHILDREN(sc->sc_light_tree),
542 OID_AUTO, "right", CTLTYPE_INT | CTLFLAG_RD,
543 dev, 0, model->smc_light_right, "I",
544 "Keyboard backlight right sensor");
546 SYSCTL_ADD_PROC(sysctlctx,
547 SYSCTL_CHILDREN(sc->sc_light_tree),
549 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_ANYBODY,
550 dev, 0, model->smc_light_control, "I",
551 "Keyboard backlight brightness control");
554 if (model->smc_sms_x == NULL)
558 * dev.asmc.n.sms tree.
560 sc->sc_sms_tree = SYSCTL_ADD_NODE(sysctlctx,
561 SYSCTL_CHILDREN(sysctlnode), OID_AUTO, "sms",
562 CTLFLAG_RD, 0, "Sudden Motion Sensor");
564 SYSCTL_ADD_PROC(sysctlctx,
565 SYSCTL_CHILDREN(sc->sc_sms_tree),
566 OID_AUTO, "x", CTLTYPE_INT | CTLFLAG_RD,
567 dev, 0, model->smc_sms_x, "I",
568 "Sudden Motion Sensor X value");
570 SYSCTL_ADD_PROC(sysctlctx,
571 SYSCTL_CHILDREN(sc->sc_sms_tree),
572 OID_AUTO, "y", CTLTYPE_INT | CTLFLAG_RD,
573 dev, 0, model->smc_sms_y, "I",
574 "Sudden Motion Sensor Y value");
576 SYSCTL_ADD_PROC(sysctlctx,
577 SYSCTL_CHILDREN(sc->sc_sms_tree),
578 OID_AUTO, "z", CTLTYPE_INT | CTLFLAG_RD,
579 dev, 0, model->smc_sms_z, "I",
580 "Sudden Motion Sensor Z value");
583 * Need a taskqueue to send devctl_notify() events
584 * when the SMS interrupt us.
586 * PI_REALTIME is used due to the sensitivity of the
587 * interrupt. An interrupt from the SMS means that the
588 * disk heads should be turned off as quickly as possible.
590 * We only need to do this for the non INTR_FILTER case.
592 sc->sc_sms_tq = NULL;
593 TASK_INIT(&sc->sc_sms_task, 0, asmc_sms_task, sc);
594 sc->sc_sms_tq = taskqueue_create_fast("asmc_taskq", M_WAITOK,
595 taskqueue_thread_enqueue, &sc->sc_sms_tq);
596 taskqueue_start_threads(&sc->sc_sms_tq, 1, PI_REALTIME, "%s sms taskq",
597 device_get_nameunit(dev));
599 * Allocate an IRQ for the SMS.
602 sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
603 &sc->sc_rid_irq, RF_ACTIVE);
604 if (sc->sc_irq == NULL) {
605 device_printf(dev, "unable to allocate IRQ resource\n");
610 ret = bus_setup_intr(dev, sc->sc_irq,
611 INTR_TYPE_MISC | INTR_MPSAFE,
612 asmc_sms_intrfast, NULL,
613 dev, &sc->sc_cookie);
616 device_printf(dev, "unable to setup SMS IRQ\n");
622 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq, sc->sc_irq);
624 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port,
626 mtx_destroy(&sc->sc_mtx);
628 taskqueue_free(sc->sc_sms_tq);
634 asmc_detach(device_t dev)
636 struct asmc_softc *sc = device_get_softc(dev);
639 taskqueue_drain(sc->sc_sms_tq, &sc->sc_sms_task);
640 taskqueue_free(sc->sc_sms_tq);
643 bus_teardown_intr(dev, sc->sc_irq, sc->sc_cookie);
645 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_rid_irq,
648 bus_release_resource(dev, SYS_RES_IOPORT, sc->sc_rid_port,
650 mtx_destroy(&sc->sc_mtx);
656 asmc_resume(device_t dev)
659 buf[0] = light_control;
661 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf);
667 void asmc_dumpall(device_t dev)
671 /* XXX magic number */
672 for (i=0; i < 0x100; i++)
673 asmc_key_dump(dev, i);
678 asmc_init(device_t dev)
680 struct asmc_softc *sc = device_get_softc(dev);
684 if (sc->sc_model->smc_sms_x == NULL)
688 * We are ready to receive interrupts from the SMS.
691 ASMC_DPRINTF(("intok key\n"));
692 asmc_key_write(dev, ASMC_KEY_INTOK, buf, 1);
696 * Initiate the polling intervals.
698 buf[0] = 20; /* msecs */
699 ASMC_DPRINTF(("low int key\n"));
700 asmc_key_write(dev, ASMC_KEY_SMS_LOW_INT, buf, 1);
703 buf[0] = 20; /* msecs */
704 ASMC_DPRINTF(("high int key\n"));
705 asmc_key_write(dev, ASMC_KEY_SMS_HIGH_INT, buf, 1);
710 ASMC_DPRINTF(("sms low key\n"));
711 asmc_key_write(dev, ASMC_KEY_SMS_LOW, buf, 2);
716 ASMC_DPRINTF(("sms high key\n"));
717 asmc_key_write(dev, ASMC_KEY_SMS_HIGH, buf, 2);
721 * I'm not sure what this key does, but it seems to be
725 ASMC_DPRINTF(("sms flag key\n"));
726 asmc_key_write(dev, ASMC_KEY_SMS_FLAG, buf, 1);
729 sc->sc_sms_intr_works = 0;
732 * Retry SMS initialization 1000 times
733 * (takes approx. 2 seconds in worst case)
735 for (i = 0; i < 1000; i++) {
736 if (asmc_key_read(dev, ASMC_KEY_SMS, buf, 2) == 0 &&
737 (buf[0] == ASMC_SMS_INIT1 && buf[1] == ASMC_SMS_INIT2)) {
739 sc->sc_sms_intr_works = 1;
742 buf[0] = ASMC_SMS_INIT1;
743 buf[1] = ASMC_SMS_INIT2;
744 ASMC_DPRINTF(("sms key\n"));
745 asmc_key_write(dev, ASMC_KEY_SMS, buf, 2);
748 device_printf(dev, "WARNING: Sudden Motion Sensor not initialized!\n");
751 asmc_sms_calibrate(dev);
753 sc->sc_nfan = asmc_fan_count(dev);
754 if (sc->sc_nfan > ASMC_MAXFANS) {
755 device_printf(dev, "more than %d fans were detected. Please "
756 "report this.\n", ASMC_MAXFANS);
757 sc->sc_nfan = ASMC_MAXFANS;
762 * The number of keys is a 32 bit buffer
764 asmc_key_read(dev, ASMC_NKEYS, buf, 4);
765 device_printf(dev, "number of keys: %d\n", ntohl(*(uint32_t*)buf));
776 * We need to make sure that the SMC acks the byte sent.
777 * Just wait up to (amount * 10) ms.
780 asmc_wait_ack(device_t dev, uint8_t val, int amount)
782 struct asmc_softc *sc = device_get_softc(dev);
785 val = val & ASMC_STATUS_MASK;
787 for (i = 0; i < amount; i++) {
788 if ((ASMC_CMDPORT_READ(sc) & ASMC_STATUS_MASK) == val)
797 * We need to make sure that the SMC acks the byte sent.
798 * Just wait up to 100 ms.
801 asmc_wait(device_t dev, uint8_t val)
803 struct asmc_softc *sc;
805 if (asmc_wait_ack(dev, val, 1000) == 0)
808 sc = device_get_softc(dev);
809 val = val & ASMC_STATUS_MASK;
812 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, val,
813 ASMC_CMDPORT_READ(sc));
819 * Send the given command, retrying up to 10 times if
820 * the acknowledgement fails.
823 asmc_command(device_t dev, uint8_t command) {
826 struct asmc_softc *sc = device_get_softc(dev);
828 for (i=0; i < 10; i++) {
829 ASMC_CMDPORT_WRITE(sc, command);
830 if (asmc_wait_ack(dev, 0x0c, 100) == 0) {
836 device_printf(dev, "%s failed: 0x%x, 0x%x\n", __func__, command,
837 ASMC_CMDPORT_READ(sc));
843 asmc_key_read(device_t dev, const char *key, uint8_t *buf, uint8_t len)
845 int i, error = 1, try = 0;
846 struct asmc_softc *sc = device_get_softc(dev);
848 mtx_lock_spin(&sc->sc_mtx);
851 if (asmc_command(dev, ASMC_CMDREAD))
854 for (i = 0; i < 4; i++) {
855 ASMC_DATAPORT_WRITE(sc, key[i]);
856 if (asmc_wait(dev, 0x04))
860 ASMC_DATAPORT_WRITE(sc, len);
862 for (i = 0; i < len; i++) {
863 if (asmc_wait(dev, 0x05))
865 buf[i] = ASMC_DATAPORT_READ(sc);
871 if (++try < 10) goto begin;
872 device_printf(dev,"%s for key %s failed %d times, giving up\n",
876 mtx_unlock_spin(&sc->sc_mtx);
883 asmc_key_dump(device_t dev, int number)
885 struct asmc_softc *sc = device_get_softc(dev);
887 char type[7] = { 0 };
891 int i, error = 1, try = 0;
893 mtx_lock_spin(&sc->sc_mtx);
895 index[0] = (number >> 24) & 0xff;
896 index[1] = (number >> 16) & 0xff;
897 index[2] = (number >> 8) & 0xff;
898 index[3] = (number) & 0xff;
901 if (asmc_command(dev, 0x12))
904 for (i = 0; i < 4; i++) {
905 ASMC_DATAPORT_WRITE(sc, index[i]);
906 if (asmc_wait(dev, 0x04))
910 ASMC_DATAPORT_WRITE(sc, 4);
912 for (i = 0; i < 4; i++) {
913 if (asmc_wait(dev, 0x05))
915 key[i] = ASMC_DATAPORT_READ(sc);
919 if (asmc_command(dev, 0x13))
922 for (i = 0; i < 4; i++) {
923 ASMC_DATAPORT_WRITE(sc, key[i]);
924 if (asmc_wait(dev, 0x04))
928 ASMC_DATAPORT_WRITE(sc, 6);
930 for (i = 0; i < 6; i++) {
931 if (asmc_wait(dev, 0x05))
933 type[i] = ASMC_DATAPORT_READ(sc);
939 if (++try < 10) goto begin;
940 device_printf(dev,"%s for key %s failed %d times, giving up\n",
942 mtx_unlock_spin(&sc->sc_mtx);
947 mtx_unlock_spin(&sc->sc_mtx);
951 if (maxlen > sizeof(v)) {
953 "WARNING: cropping maxlen from %d to %zu\n",
957 for (i = 0; i < sizeof(v); i++) {
960 asmc_key_read(dev, key, v, maxlen);
961 snprintf(buf, sizeof(buf), "key %d is: %s, type %s "
962 "(len %d), data", number, key, type, maxlen);
963 for (i = 0; i < maxlen; i++) {
964 snprintf(buf2, sizeof(buf2), " %02x", v[i]);
965 strlcat(buf, buf2, sizeof(buf));
967 strlcat(buf, " \n", sizeof(buf));
968 device_printf(dev, "%s", buf);
976 asmc_key_write(device_t dev, const char *key, uint8_t *buf, uint8_t len)
978 int i, error = -1, try = 0;
979 struct asmc_softc *sc = device_get_softc(dev);
981 mtx_lock_spin(&sc->sc_mtx);
984 ASMC_DPRINTF(("cmd port: cmd write\n"));
985 if (asmc_command(dev, ASMC_CMDWRITE))
988 ASMC_DPRINTF(("data port: key\n"));
989 for (i = 0; i < 4; i++) {
990 ASMC_DATAPORT_WRITE(sc, key[i]);
991 if (asmc_wait(dev, 0x04))
994 ASMC_DPRINTF(("data port: length\n"));
995 ASMC_DATAPORT_WRITE(sc, len);
997 ASMC_DPRINTF(("data port: buffer\n"));
998 for (i = 0; i < len; i++) {
999 if (asmc_wait(dev, 0x04))
1001 ASMC_DATAPORT_WRITE(sc, buf[i]);
1007 if (++try < 10) goto begin;
1008 device_printf(dev,"%s for key %s failed %d times, giving up\n",
1009 __func__, key, try);
1012 mtx_unlock_spin(&sc->sc_mtx);
1019 * Fan control functions.
1022 asmc_fan_count(device_t dev)
1026 if (asmc_key_read(dev, ASMC_KEY_FANCOUNT, buf, sizeof buf) < 0)
1033 asmc_fan_getvalue(device_t dev, const char *key, int fan)
1039 snprintf(fankey, sizeof(fankey), key, fan);
1040 if (asmc_key_read(dev, fankey, buf, sizeof buf) < 0)
1042 speed = (buf[0] << 6) | (buf[1] >> 2);
1048 asmc_fan_getstring(device_t dev, const char *key, int fan, uint8_t *buf, uint8_t buflen)
1053 snprintf(fankey, sizeof(fankey), key, fan);
1054 if (asmc_key_read(dev, fankey, buf, buflen) < 0)
1062 asmc_fan_setvalue(device_t dev, const char *key, int fan, int speed)
1072 snprintf(fankey, sizeof(fankey), key, fan);
1073 if (asmc_key_write(dev, fankey, buf, sizeof buf) < 0)
1080 asmc_mb_sysctl_fanspeed(SYSCTL_HANDLER_ARGS)
1082 device_t dev = (device_t) arg1;
1087 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSPEED, fan);
1088 error = sysctl_handle_int(oidp, &v, 0, req);
1094 asmc_mb_sysctl_fanid(SYSCTL_HANDLER_ARGS)
1097 device_t dev = (device_t) arg1;
1102 desc = asmc_fan_getstring(dev, ASMC_KEY_FANID, fan, buf, sizeof(buf));
1105 error = sysctl_handle_string(oidp, desc, 0, req);
1111 asmc_mb_sysctl_fansafespeed(SYSCTL_HANDLER_ARGS)
1113 device_t dev = (device_t) arg1;
1118 v = asmc_fan_getvalue(dev, ASMC_KEY_FANSAFESPEED, fan);
1119 error = sysctl_handle_int(oidp, &v, 0, req);
1126 asmc_mb_sysctl_fanminspeed(SYSCTL_HANDLER_ARGS)
1128 device_t dev = (device_t) arg1;
1133 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMINSPEED, fan);
1134 error = sysctl_handle_int(oidp, &v, 0, req);
1136 if (error == 0 && req->newptr != NULL) {
1137 unsigned int newspeed = v;
1138 asmc_fan_setvalue(dev, ASMC_KEY_FANMINSPEED, fan, newspeed);
1145 asmc_mb_sysctl_fanmaxspeed(SYSCTL_HANDLER_ARGS)
1147 device_t dev = (device_t) arg1;
1152 v = asmc_fan_getvalue(dev, ASMC_KEY_FANMAXSPEED, fan);
1153 error = sysctl_handle_int(oidp, &v, 0, req);
1155 if (error == 0 && req->newptr != NULL) {
1156 unsigned int newspeed = v;
1157 asmc_fan_setvalue(dev, ASMC_KEY_FANMAXSPEED, fan, newspeed);
1164 asmc_mb_sysctl_fantargetspeed(SYSCTL_HANDLER_ARGS)
1166 device_t dev = (device_t) arg1;
1171 v = asmc_fan_getvalue(dev, ASMC_KEY_FANTARGETSPEED, fan);
1172 error = sysctl_handle_int(oidp, &v, 0, req);
1174 if (error == 0 && req->newptr != NULL) {
1175 unsigned int newspeed = v;
1176 asmc_fan_setvalue(dev, ASMC_KEY_FANTARGETSPEED, fan, newspeed);
1183 * Temperature functions.
1186 asmc_temp_getvalue(device_t dev, const char *key)
1191 * Check for invalid temperatures.
1193 if (asmc_key_read(dev, key, buf, sizeof buf) < 0)
1200 asmc_temp_sysctl(SYSCTL_HANDLER_ARGS)
1202 device_t dev = (device_t) arg1;
1203 struct asmc_softc *sc = device_get_softc(dev);
1206 val = asmc_temp_getvalue(dev, sc->sc_model->smc_temps[arg2]);
1207 error = sysctl_handle_int(oidp, &val, 0, req);
1213 * Sudden Motion Sensor functions.
1216 asmc_sms_read(device_t dev, const char *key, int16_t *val)
1221 /* no need to do locking here as asmc_key_read() already does it */
1226 error = asmc_key_read(dev, key, buf, sizeof buf);
1229 device_printf(dev, "%s called with invalid argument %s\n",
1234 *val = ((int16_t)buf[0] << 8) | buf[1];
1240 asmc_sms_calibrate(device_t dev)
1242 struct asmc_softc *sc = device_get_softc(dev);
1244 asmc_sms_read(dev, ASMC_KEY_SMS_X, &sc->sms_rest_x);
1245 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &sc->sms_rest_y);
1246 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &sc->sms_rest_z);
1250 asmc_sms_intrfast(void *arg)
1253 device_t dev = (device_t) arg;
1254 struct asmc_softc *sc = device_get_softc(dev);
1255 if (!sc->sc_sms_intr_works)
1256 return (FILTER_HANDLED);
1258 mtx_lock_spin(&sc->sc_mtx);
1259 type = ASMC_INTPORT_READ(sc);
1260 mtx_unlock_spin(&sc->sc_mtx);
1262 sc->sc_sms_intrtype = type;
1263 asmc_sms_printintr(dev, type);
1265 taskqueue_enqueue(sc->sc_sms_tq, &sc->sc_sms_task);
1266 return (FILTER_HANDLED);
1272 asmc_sms_printintr(device_t dev, uint8_t type)
1276 case ASMC_SMS_INTFF:
1277 device_printf(dev, "WARNING: possible free fall!\n");
1279 case ASMC_SMS_INTHA:
1280 device_printf(dev, "WARNING: high acceleration detected!\n");
1282 case ASMC_SMS_INTSH:
1283 device_printf(dev, "WARNING: possible shock!\n");
1286 device_printf(dev, "%s unknown interrupt\n", __func__);
1291 asmc_sms_task(void *arg, int pending)
1293 struct asmc_softc *sc = (struct asmc_softc *)arg;
1297 switch (sc->sc_sms_intrtype) {
1298 case ASMC_SMS_INTFF:
1301 case ASMC_SMS_INTHA:
1304 case ASMC_SMS_INTSH:
1311 snprintf(notify, sizeof(notify), " notify=0x%x", type);
1312 devctl_notify("ACPI", "asmc", "SMS", notify);
1316 asmc_mb_sysctl_sms_x(SYSCTL_HANDLER_ARGS)
1318 device_t dev = (device_t) arg1;
1323 asmc_sms_read(dev, ASMC_KEY_SMS_X, &val);
1325 error = sysctl_handle_int(oidp, &v, 0, req);
1331 asmc_mb_sysctl_sms_y(SYSCTL_HANDLER_ARGS)
1333 device_t dev = (device_t) arg1;
1338 asmc_sms_read(dev, ASMC_KEY_SMS_Y, &val);
1340 error = sysctl_handle_int(oidp, &v, 0, req);
1346 asmc_mb_sysctl_sms_z(SYSCTL_HANDLER_ARGS)
1348 device_t dev = (device_t) arg1;
1353 asmc_sms_read(dev, ASMC_KEY_SMS_Z, &val);
1355 error = sysctl_handle_int(oidp, &v, 0, req);
1361 asmc_mbp_sysctl_light_left(SYSCTL_HANDLER_ARGS)
1363 device_t dev = (device_t) arg1;
1368 asmc_key_read(dev, ASMC_KEY_LIGHTLEFT, buf, sizeof buf);
1370 error = sysctl_handle_int(oidp, &v, 0, req);
1376 asmc_mbp_sysctl_light_right(SYSCTL_HANDLER_ARGS)
1378 device_t dev = (device_t) arg1;
1383 asmc_key_read(dev, ASMC_KEY_LIGHTRIGHT, buf, sizeof buf);
1385 error = sysctl_handle_int(oidp, &v, 0, req);
1391 asmc_mbp_sysctl_light_control(SYSCTL_HANDLER_ARGS)
1393 device_t dev = (device_t) arg1;
1399 error = sysctl_handle_int(oidp, &v, 0, req);
1401 if (error == 0 && req->newptr != NULL) {
1402 if (v < 0 || v > 255)
1405 buf[0] = light_control;
1407 asmc_key_write(dev, ASMC_KEY_LIGHTVALUE, buf, sizeof buf);