2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2006 Michael Lorenz
5 * Copyright 2008 by Nathan Whitehorn
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
22 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
24 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/module.h>
39 #include <sys/kernel.h>
40 #include <sys/kthread.h>
41 #include <sys/clock.h>
43 #include <sys/reboot.h>
44 #include <sys/sysctl.h>
46 #include <dev/ofw/ofw_bus.h>
47 #include <dev/ofw/openfirm.h>
48 #include <dev/led/led.h>
50 #include <machine/_inttypes.h>
51 #include <machine/bus.h>
52 #include <machine/cpu.h>
53 #include <machine/hid.h>
54 #include <machine/intr_machdep.h>
55 #include <machine/md_var.h>
56 #include <machine/pcb.h>
57 #include <machine/pio.h>
58 #include <machine/resource.h>
65 #include <dev/adb/adb.h>
70 #include "uninorthvar.h" /* For unin_chip_sleep()/unin_chip_wake() */
72 #define PMU_DEFAULTS PMU_INT_TICK | PMU_INT_ADB | \
73 PMU_INT_PCEJECT | PMU_INT_SNDBRT | \
74 PMU_INT_BATTERY | PMU_INT_ENVIRONMENT
79 static int pmu_probe(device_t);
80 static int pmu_attach(device_t);
81 static int pmu_detach(device_t);
86 static int pmu_gettime(device_t dev, struct timespec *ts);
87 static int pmu_settime(device_t dev, struct timespec *ts);
93 static u_int pmu_adb_send(device_t dev, u_char command_byte, int len,
94 u_char *data, u_char poll);
95 static u_int pmu_adb_autopoll(device_t dev, uint16_t mask);
96 static u_int pmu_poll(device_t dev);
102 static void pmu_shutdown(void *xsc, int howto);
103 static void pmu_set_sleepled(void *xsc, int onoff);
104 static int pmu_server_mode(SYSCTL_HANDLER_ARGS);
105 static int pmu_acline_state(SYSCTL_HANDLER_ARGS);
106 static int pmu_query_battery(struct pmu_softc *sc, int batt,
107 struct pmu_battstate *info);
108 static int pmu_battquery_sysctl(SYSCTL_HANDLER_ARGS);
109 static int pmu_battmon(SYSCTL_HANDLER_ARGS);
110 static void pmu_battquery_proc(void);
111 static void pmu_battery_notify(struct pmu_battstate *batt,
112 struct pmu_battstate *old);
115 * List of battery-related sysctls we might ask for
119 PMU_BATSYSCTL_PRESENT = 1 << 8,
120 PMU_BATSYSCTL_CHARGING = 2 << 8,
121 PMU_BATSYSCTL_CHARGE = 3 << 8,
122 PMU_BATSYSCTL_MAXCHARGE = 4 << 8,
123 PMU_BATSYSCTL_CURRENT = 5 << 8,
124 PMU_BATSYSCTL_VOLTAGE = 6 << 8,
125 PMU_BATSYSCTL_TIME = 7 << 8,
126 PMU_BATSYSCTL_LIFE = 8 << 8
129 static device_method_t pmu_methods[] = {
130 /* Device interface */
131 DEVMETHOD(device_probe, pmu_probe),
132 DEVMETHOD(device_attach, pmu_attach),
133 DEVMETHOD(device_detach, pmu_detach),
134 DEVMETHOD(device_shutdown, bus_generic_shutdown),
136 /* ADB bus interface */
137 DEVMETHOD(adb_hb_send_raw_packet, pmu_adb_send),
138 DEVMETHOD(adb_hb_controller_poll, pmu_poll),
139 DEVMETHOD(adb_hb_set_autopoll_mask, pmu_adb_autopoll),
141 /* Clock interface */
142 DEVMETHOD(clock_gettime, pmu_gettime),
143 DEVMETHOD(clock_settime, pmu_settime),
148 static driver_t pmu_driver = {
151 sizeof(struct pmu_softc),
154 static devclass_t pmu_devclass;
156 EARLY_DRIVER_MODULE(pmu, macio, pmu_driver, pmu_devclass, 0, 0,
158 DRIVER_MODULE(adb, pmu, adb_driver, adb_devclass, 0, 0);
160 static int pmuextint_probe(device_t);
161 static int pmuextint_attach(device_t);
163 static device_method_t pmuextint_methods[] = {
164 /* Device interface */
165 DEVMETHOD(device_probe, pmuextint_probe),
166 DEVMETHOD(device_attach, pmuextint_attach),
171 static driver_t pmuextint_driver = {
177 static devclass_t pmuextint_devclass;
179 EARLY_DRIVER_MODULE(pmuextint, macgpio, pmuextint_driver, pmuextint_devclass,
180 0, 0, BUS_PASS_RESOURCE);
182 /* Make sure uhid is loaded, as it turns off some of the ADB emulation */
183 MODULE_DEPEND(pmu, usb, 1, 1, 1);
185 static void pmu_intr(void *arg);
186 static void pmu_in(struct pmu_softc *sc);
187 static void pmu_out(struct pmu_softc *sc);
188 static void pmu_ack_on(struct pmu_softc *sc);
189 static void pmu_ack_off(struct pmu_softc *sc);
190 static int pmu_send(void *cookie, int cmd, int length, uint8_t *in_msg,
191 int rlen, uint8_t *out_msg);
192 static uint8_t pmu_read_reg(struct pmu_softc *sc, u_int offset);
193 static void pmu_write_reg(struct pmu_softc *sc, u_int offset, uint8_t value);
194 static int pmu_intr_state(struct pmu_softc *);
196 /* these values shows that number of data returned after 'send' cmd is sent */
197 static signed char pm_send_cmd_type[] = {
198 -1, -1, -1, -1, -1, -1, -1, -1,
199 -1, -1, -1, -1, -1, -1, -1, -1,
200 0x01, 0x01, -1, -1, -1, -1, -1, -1,
201 0x00, 0x00, -1, -1, -1, -1, -1, 0x00,
202 -1, 0x00, 0x02, 0x01, 0x01, -1, -1, -1,
203 0x00, -1, -1, -1, -1, -1, -1, -1,
204 0x04, 0x14, -1, 0x03, -1, -1, -1, -1,
205 0x00, 0x00, 0x02, 0x02, -1, -1, -1, -1,
206 0x01, 0x01, -1, -1, -1, -1, -1, -1,
207 0x00, 0x00, -1, -1, 0x01, -1, -1, -1,
208 0x01, 0x00, 0x02, 0x02, -1, 0x01, 0x03, 0x01,
209 0x00, 0x01, 0x00, 0x00, 0x00, -1, -1, -1,
210 0x02, -1, -1, -1, -1, -1, -1, -1,
211 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -1, -1,
212 0x01, 0x01, 0x01, -1, -1, -1, -1, -1,
213 0x00, 0x00, -1, -1, -1, 0x05, 0x04, 0x04,
214 0x04, -1, 0x00, -1, -1, -1, -1, -1,
215 0x00, -1, -1, -1, -1, -1, -1, -1,
216 0x01, 0x02, -1, -1, -1, -1, -1, -1,
217 0x00, 0x00, -1, -1, -1, -1, -1, -1,
218 0x02, 0x02, 0x02, 0x04, -1, 0x00, -1, -1,
219 0x01, 0x01, 0x03, 0x02, -1, -1, -1, -1,
220 -1, -1, -1, -1, -1, -1, -1, -1,
221 -1, -1, -1, -1, -1, -1, -1, -1,
222 -1, -1, -1, -1, -1, -1, -1, -1,
223 -1, -1, -1, -1, -1, -1, -1, -1,
224 0x00, -1, -1, -1, -1, -1, -1, -1,
225 0x01, 0x01, -1, -1, 0x00, 0x00, -1, -1,
226 -1, 0x04, 0x00, -1, -1, -1, -1, -1,
227 0x03, -1, 0x00, -1, 0x00, -1, -1, 0x00,
228 -1, -1, -1, -1, -1, -1, -1, -1,
229 -1, -1, -1, -1, -1, -1, -1, -1
232 /* these values shows that number of data returned after 'receive' cmd is sent */
233 static signed char pm_receive_cmd_type[] = {
234 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
235 -1, -1, -1, -1, -1, -1, -1, -1,
236 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
237 0x02, 0x02, -1, -1, -1, -1, -1, 0x00,
238 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
239 -1, -1, -1, -1, -1, -1, -1, -1,
240 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
241 0x05, 0x15, -1, 0x02, -1, -1, -1, -1,
242 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
243 0x02, 0x02, -1, -1, -1, -1, -1, -1,
244 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
245 0x02, 0x00, 0x03, 0x03, -1, -1, -1, -1,
246 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
247 0x04, 0x04, 0x03, 0x09, -1, -1, -1, -1,
248 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
249 -1, -1, -1, -1, -1, 0x01, 0x01, 0x01,
250 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
251 0x06, -1, -1, -1, -1, -1, -1, -1,
252 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
253 0x02, 0x02, -1, -1, -1, -1, -1, -1,
254 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
255 0x02, 0x00, 0x00, 0x00, -1, -1, -1, -1,
256 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
257 -1, -1, -1, -1, -1, -1, -1, -1,
258 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
259 -1, -1, -1, -1, -1, -1, -1, -1,
260 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
261 0x02, 0x02, -1, -1, 0x02, -1, -1, -1,
262 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
263 -1, -1, 0x02, -1, -1, -1, -1, 0x00,
264 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
265 -1, -1, -1, -1, -1, -1, -1, -1,
268 static int pmu_battmon_enabled = 1;
269 static struct proc *pmubattproc;
270 static struct kproc_desc pmu_batt_kp = {
276 /* We only have one of each device, so globals are safe */
277 static device_t pmu = NULL;
278 static device_t pmu_extint = NULL;
281 pmuextint_probe(device_t dev)
283 const char *type = ofw_bus_get_type(dev);
285 if (strcmp(type, "extint-gpio1") != 0)
288 device_set_desc(dev, "Apple PMU99 External Interrupt");
293 pmu_probe(device_t dev)
295 const char *type = ofw_bus_get_type(dev);
297 if (strcmp(type, "via-pmu") != 0)
300 device_set_desc(dev, "Apple PMU99 Controller");
306 setup_pmu_intr(device_t dev, device_t extint)
308 struct pmu_softc *sc;
309 sc = device_get_softc(dev);
312 sc->sc_irq = bus_alloc_resource_any(extint, SYS_RES_IRQ, &sc->sc_irqrid,
314 if (sc->sc_irq == NULL) {
315 device_printf(dev, "could not allocate interrupt\n");
319 if (bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_MISC | INTR_MPSAFE
320 | INTR_ENTROPY, NULL, pmu_intr, dev, &sc->sc_ih) != 0) {
321 device_printf(dev, "could not setup interrupt\n");
322 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irqrid,
331 pmuextint_attach(device_t dev)
335 return (setup_pmu_intr(pmu,dev));
341 pmu_attach(device_t dev)
343 struct pmu_softc *sc;
347 uint8_t cmd[2] = {2, 0};
349 phandle_t node,child;
350 struct sysctl_ctx_list *ctx;
351 struct sysctl_oid *tree;
353 sc = device_get_softc(dev);
357 sc->sc_memr = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
358 &sc->sc_memrid, RF_ACTIVE);
360 mtx_init(&sc->sc_mutex,"pmu",NULL,MTX_DEF | MTX_RECURSE);
362 if (sc->sc_memr == NULL) {
363 device_printf(dev, "Could not alloc mem resource!\n");
368 * Our interrupt is attached to a GPIO pin. Depending on probe order,
369 * we may not have found it yet. If we haven't, it will find us, and
370 * attach our interrupt then.
373 if (pmu_extint != NULL) {
374 if (setup_pmu_intr(dev,pmu_extint) != 0)
379 sc->sc_batteries = 0;
381 sc->sc_leddev = NULL;
385 pmu_write_reg(sc, vBufB, pmu_read_reg(sc, vBufB) | vPB4);
386 pmu_write_reg(sc, vDirB, (pmu_read_reg(sc, vDirB) | vPB4) & ~vPB3);
389 pmu_send(sc, PMU_SET_IMASK, 1, ®, 16, resp);
391 pmu_write_reg(sc, vIER, 0x94); /* make sure VIA interrupts are on */
393 pmu_send(sc, PMU_SYSTEM_READY, 1, cmd, 16, resp);
394 pmu_send(sc, PMU_GET_VERSION, 0, cmd, 16, resp);
396 /* Initialize child buses (ADB) */
397 node = ofw_bus_get_node(dev);
399 for (child = OF_child(node); child != 0; child = OF_peer(child)) {
402 memset(name, 0, sizeof(name));
403 OF_getprop(child, "name", name, sizeof(name));
406 device_printf(dev, "PMU child <%s>\n",name);
408 if (strncmp(name, "adb", 4) == 0) {
409 sc->adb_bus = device_add_child(dev,"adb",-1);
412 if (strncmp(name, "power-mgt", 9) == 0) {
413 uint32_t prim_info[9];
415 if (OF_getprop(child, "prim-info", prim_info,
416 sizeof(prim_info)) >= 7)
417 sc->sc_batteries = (prim_info[6] >> 16) & 0xff;
419 if (bootverbose && sc->sc_batteries > 0)
420 device_printf(dev, "%d batteries detected\n",
429 ctx = device_get_sysctl_ctx(dev);
430 tree = device_get_sysctl_tree(dev);
432 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
433 "server_mode", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
434 pmu_server_mode, "I", "Enable reboot after power failure");
436 if (sc->sc_batteries > 0) {
437 struct sysctl_oid *oid, *battroot;
440 /* Only start the battery monitor if we have a battery. */
441 kproc_start(&pmu_batt_kp);
442 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
443 "monitor_batteries", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
444 pmu_battmon, "I", "Post battery events to devd");
447 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
448 "acline", CTLTYPE_INT | CTLFLAG_RD, sc, 0,
449 pmu_acline_state, "I", "AC Line Status");
451 battroot = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
452 "batteries", CTLFLAG_RD, 0, "Battery Information");
454 for (i = 0; i < sc->sc_batteries; i++) {
455 battnum[0] = i + '0';
458 oid = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(battroot),
459 OID_AUTO, battnum, CTLFLAG_RD, 0,
460 "Battery Information");
462 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
463 "present", CTLTYPE_INT | CTLFLAG_RD, sc,
464 PMU_BATSYSCTL_PRESENT | i, pmu_battquery_sysctl,
465 "I", "Battery present");
466 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
467 "charging", CTLTYPE_INT | CTLFLAG_RD, sc,
468 PMU_BATSYSCTL_CHARGING | i, pmu_battquery_sysctl,
469 "I", "Battery charging");
470 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
471 "charge", CTLTYPE_INT | CTLFLAG_RD, sc,
472 PMU_BATSYSCTL_CHARGE | i, pmu_battquery_sysctl,
473 "I", "Battery charge (mAh)");
474 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
475 "maxcharge", CTLTYPE_INT | CTLFLAG_RD, sc,
476 PMU_BATSYSCTL_MAXCHARGE | i, pmu_battquery_sysctl,
477 "I", "Maximum battery capacity (mAh)");
478 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
479 "rate", CTLTYPE_INT | CTLFLAG_RD, sc,
480 PMU_BATSYSCTL_CURRENT | i, pmu_battquery_sysctl,
481 "I", "Battery discharge rate (mA)");
482 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
483 "voltage", CTLTYPE_INT | CTLFLAG_RD, sc,
484 PMU_BATSYSCTL_VOLTAGE | i, pmu_battquery_sysctl,
485 "I", "Battery voltage (mV)");
487 /* Knobs for mental compatibility with ACPI */
489 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
490 "time", CTLTYPE_INT | CTLFLAG_RD, sc,
491 PMU_BATSYSCTL_TIME | i, pmu_battquery_sysctl,
492 "I", "Time Remaining (minutes)");
493 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
494 "life", CTLTYPE_INT | CTLFLAG_RD, sc,
495 PMU_BATSYSCTL_LIFE | i, pmu_battquery_sysctl,
496 "I", "Capacity remaining (percent)");
501 * Set up LED interface
504 sc->sc_leddev = led_create(pmu_set_sleepled, sc, "sleepled");
510 clock_register(dev, 1000);
513 * Register power control handler
515 EVENTHANDLER_REGISTER(shutdown_final, pmu_shutdown, sc,
518 return (bus_generic_attach(dev));
522 pmu_detach(device_t dev)
524 struct pmu_softc *sc;
526 sc = device_get_softc(dev);
528 if (sc->sc_leddev != NULL)
529 led_destroy(sc->sc_leddev);
531 bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
532 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irqrid, sc->sc_irq);
533 bus_release_resource(dev, SYS_RES_MEMORY, sc->sc_memrid, sc->sc_memr);
534 mtx_destroy(&sc->sc_mutex);
536 return (bus_generic_detach(dev));
540 pmu_read_reg(struct pmu_softc *sc, u_int offset)
542 return (bus_read_1(sc->sc_memr, offset));
546 pmu_write_reg(struct pmu_softc *sc, u_int offset, uint8_t value)
548 bus_write_1(sc->sc_memr, offset, value);
552 pmu_send_byte(struct pmu_softc *sc, uint8_t data)
556 pmu_write_reg(sc, vSR, data);
558 /* wait for intr to come up */
559 /* XXX should add a timeout and bail if it expires */
560 do {} while (pmu_intr_state(sc) == 0);
562 do {} while (pmu_intr_state(sc));
568 pmu_read_byte(struct pmu_softc *sc, uint8_t *data)
570 volatile uint8_t scratch;
572 scratch = pmu_read_reg(sc, vSR);
574 /* wait for intr to come up */
575 do {} while (pmu_intr_state(sc) == 0);
577 do {} while (pmu_intr_state(sc));
578 *data = pmu_read_reg(sc, vSR);
583 pmu_intr_state(struct pmu_softc *sc)
585 return ((pmu_read_reg(sc, vBufB) & vPB3) == 0);
589 pmu_send(void *cookie, int cmd, int length, uint8_t *in_msg, int rlen,
592 struct pmu_softc *sc = cookie;
594 uint8_t out_len, intreg;
596 intreg = pmu_read_reg(sc, vIER);
598 pmu_write_reg(sc, vIER, intreg);
601 do {} while (pmu_intr_state(sc));
604 pmu_send_byte(sc, cmd);
606 /* send length if necessary */
607 if (pm_send_cmd_type[cmd] < 0) {
608 pmu_send_byte(sc, length);
611 for (i = 0; i < length; i++) {
612 pmu_send_byte(sc, in_msg[i]);
615 /* see if there's data to read */
616 rcv_len = pm_receive_cmd_type[cmd];
622 pmu_read_byte(sc, out_msg);
627 pmu_read_byte(sc, &out_len);
628 rcv_len = out_len + 1;
630 for (i = 1; i < min(rcv_len, rlen); i++)
631 pmu_read_byte(sc, &out_msg[i]);
634 pmu_write_reg(sc, vIER, (intreg == 0) ? 0 : 0x90);
641 pmu_poll(device_t dev)
648 pmu_in(struct pmu_softc *sc)
652 reg = pmu_read_reg(sc, vACR);
655 pmu_write_reg(sc, vACR, reg);
659 pmu_out(struct pmu_softc *sc)
663 reg = pmu_read_reg(sc, vACR);
666 pmu_write_reg(sc, vACR, reg);
670 pmu_ack_off(struct pmu_softc *sc)
674 reg = pmu_read_reg(sc, vBufB);
676 pmu_write_reg(sc, vBufB, reg);
680 pmu_ack_on(struct pmu_softc *sc)
684 reg = pmu_read_reg(sc, vBufB);
686 pmu_write_reg(sc, vBufB, reg);
693 struct pmu_softc *sc;
700 sc = device_get_softc(dev);
702 mtx_lock(&sc->sc_mutex);
704 pmu_write_reg(sc, vIFR, 0x90); /* Clear 'em */
705 len = pmu_send(sc, PMU_INT_ACK, 0, NULL, 16, resp);
707 mtx_unlock(&sc->sc_mutex);
709 if ((len < 1) || (resp[1] == 0)) {
713 if (resp[1] & PMU_INT_ADB) {
715 * the PMU will turn off autopolling after each command that
716 * it did not issue, so we assume any but TALK R0 is ours and
717 * re-enable autopoll here whenever we receive an ACK for a
720 mtx_lock(&sc->sc_mutex);
722 if ((resp[2] & 0x0f) != (ADB_COMMAND_TALK << 2)) {
723 if (sc->sc_autopoll) {
724 uint8_t cmd[] = {0, PMU_SET_POLL_MASK,
725 (sc->sc_autopoll >> 8) & 0xff,
726 sc->sc_autopoll & 0xff};
728 pmu_send(sc, PMU_ADB_CMD, 4, cmd, 16, junk);
732 mtx_unlock(&sc->sc_mutex);
734 adb_receive_raw_packet(sc->adb_bus,resp[1],resp[2],
737 if (resp[1] & PMU_INT_ENVIRONMENT) {
738 /* if the lid was just closed, notify devd. */
739 if ((resp[2] & PMU_ENV_LID_CLOSED) && (!sc->lid_closed)) {
741 devctl_notify("PMU", "lid", "close", NULL);
743 else if (!(resp[2] & PMU_ENV_LID_CLOSED) && (sc->lid_closed)) {
744 /* if the lid was just opened, notify devd. */
746 devctl_notify("PMU", "lid", "open", NULL);
748 if (resp[2] & PMU_ENV_POWER)
749 devctl_notify("PMU", "Button", "pressed", NULL);
754 pmu_adb_send(device_t dev, u_char command_byte, int len, u_char *data,
757 struct pmu_softc *sc = device_get_softc(dev);
759 uint8_t packet[16], resp[16];
761 /* construct an ADB command packet and send it */
763 packet[0] = command_byte;
767 for (i = 0; i < len; i++)
768 packet[i + 3] = data[i];
770 mtx_lock(&sc->sc_mutex);
771 replen = pmu_send(sc, PMU_ADB_CMD, len + 3, packet, 16, resp);
772 mtx_unlock(&sc->sc_mutex);
781 pmu_adb_autopoll(device_t dev, uint16_t mask)
783 struct pmu_softc *sc = device_get_softc(dev);
785 /* magical incantation to re-enable autopolling */
786 uint8_t cmd[] = {0, PMU_SET_POLL_MASK, (mask >> 8) & 0xff, mask & 0xff};
789 mtx_lock(&sc->sc_mutex);
791 if (sc->sc_autopoll == mask) {
792 mtx_unlock(&sc->sc_mutex);
796 sc->sc_autopoll = mask & 0xffff;
799 pmu_send(sc, PMU_ADB_CMD, 4, cmd, 16, resp);
801 pmu_send(sc, PMU_ADB_POLL_OFF, 0, NULL, 16, resp);
803 mtx_unlock(&sc->sc_mutex);
809 pmu_shutdown(void *xsc, int howto)
811 struct pmu_softc *sc = xsc;
812 uint8_t cmd[] = {'M', 'A', 'T', 'T'};
815 pmu_send(sc, PMU_POWER_OFF, 4, cmd, 0, NULL);
817 pmu_send(sc, PMU_RESET_CPU, 0, NULL, 0, NULL);
823 pmu_set_sleepled(void *xsc, int onoff)
825 struct pmu_softc *sc = xsc;
826 uint8_t cmd[] = {4, 0, 0};
830 mtx_lock(&sc->sc_mutex);
831 pmu_send(sc, PMU_SET_SLEEPLED, 3, cmd, 0, NULL);
832 mtx_unlock(&sc->sc_mutex);
836 pmu_server_mode(SYSCTL_HANDLER_ARGS)
838 struct pmu_softc *sc = arg1;
840 u_int server_mode = 0;
841 uint8_t getcmd[] = {PMU_PWR_GET_POWERUP_EVENTS};
842 uint8_t setcmd[] = {0, 0, PMU_PWR_WAKEUP_AC_INSERT};
846 mtx_lock(&sc->sc_mutex);
847 len = pmu_send(sc, PMU_POWER_EVENTS, 1, getcmd, 3, resp);
848 mtx_unlock(&sc->sc_mutex);
851 server_mode = (resp[2] & PMU_PWR_WAKEUP_AC_INSERT) ? 1 : 0;
853 error = sysctl_handle_int(oidp, &server_mode, 0, req);
858 if (error || !req->newptr)
861 if (server_mode == 1)
862 setcmd[0] = PMU_PWR_SET_POWERUP_EVENTS;
863 else if (server_mode == 0)
864 setcmd[0] = PMU_PWR_CLR_POWERUP_EVENTS;
870 mtx_lock(&sc->sc_mutex);
871 pmu_send(sc, PMU_POWER_EVENTS, 3, setcmd, 2, resp);
872 mtx_unlock(&sc->sc_mutex);
878 pmu_query_battery(struct pmu_softc *sc, int batt, struct pmu_battstate *info)
886 mtx_lock(&sc->sc_mutex);
887 len = pmu_send(sc, PMU_SMART_BATTERY_STATE, 1, ®, 16, resp);
888 mtx_unlock(&sc->sc_mutex);
893 /* All PMU battery info replies share a common header:
894 * Byte 1 Payload Format
895 * Byte 2 Battery Flags
898 info->state = resp[2];
904 * Formats 3 and 4 appear to be the same:
911 info->charge = resp[3];
912 info->maxcharge = resp[4];
913 /* Current can be positive or negative */
914 info->current = (int8_t)resp[5];
915 info->voltage = resp[6];
919 * Formats 5 is a wider version of formats 3 and 4
921 * Byte 5-6 Max Charge
926 info->charge = (resp[3] << 8) | resp[4];
927 info->maxcharge = (resp[5] << 8) | resp[6];
928 /* Current can be positive or negative */
929 info->current = (int16_t)((resp[7] << 8) | resp[8]);
930 info->voltage = (resp[9] << 8) | resp[10];
933 device_printf(sc->sc_dev, "Unknown battery info format (%d)!\n",
942 pmu_battery_notify(struct pmu_battstate *batt, struct pmu_battstate *old)
945 int new_acline, old_acline;
947 new_acline = (batt->state & PMU_PWR_AC_PRESENT) ? 1 : 0;
948 old_acline = (old->state & PMU_PWR_AC_PRESENT) ? 1 : 0;
950 if (new_acline != old_acline) {
951 snprintf(notify_buf, sizeof(notify_buf),
952 "notify=0x%02x", new_acline);
953 devctl_notify("PMU", "POWER", "ACLINE", notify_buf);
960 struct pmu_softc *sc;
961 struct pmu_battstate batt;
962 struct pmu_battstate cur_batt;
965 sc = device_get_softc(pmu);
967 bzero(&cur_batt, sizeof(cur_batt));
969 kproc_suspend_check(curproc);
970 error = pmu_query_battery(sc, 0, &batt);
971 pmu_battery_notify(&batt, &cur_batt);
973 pause("pmu_batt", hz);
978 pmu_battmon(SYSCTL_HANDLER_ARGS)
980 struct pmu_softc *sc;
984 result = pmu_battmon_enabled;
986 error = sysctl_handle_int(oidp, &result, 0, req);
988 if (error || !req->newptr)
991 if (!result && pmu_battmon_enabled)
992 error = kproc_suspend(pmubattproc, hz);
993 else if (result && pmu_battmon_enabled == 0)
994 error = kproc_resume(pmubattproc);
995 pmu_battmon_enabled = (result != 0);
1001 pmu_acline_state(SYSCTL_HANDLER_ARGS)
1003 struct pmu_softc *sc;
1004 struct pmu_battstate batt;
1009 /* The PMU treats the AC line status as a property of the battery */
1010 error = pmu_query_battery(sc, 0, &batt);
1015 result = (batt.state & PMU_PWR_AC_PRESENT) ? 1 : 0;
1016 error = sysctl_handle_int(oidp, &result, 0, req);
1022 pmu_battquery_sysctl(SYSCTL_HANDLER_ARGS)
1024 struct pmu_softc *sc;
1025 struct pmu_battstate batt;
1030 error = pmu_query_battery(sc, arg2 & 0x00ff, &batt);
1035 switch (arg2 & 0xff00) {
1036 case PMU_BATSYSCTL_PRESENT:
1037 result = (batt.state & PMU_PWR_BATT_PRESENT) ? 1 : 0;
1039 case PMU_BATSYSCTL_CHARGING:
1040 result = (batt.state & PMU_PWR_BATT_CHARGING) ? 1 : 0;
1042 case PMU_BATSYSCTL_CHARGE:
1043 result = batt.charge;
1045 case PMU_BATSYSCTL_MAXCHARGE:
1046 result = batt.maxcharge;
1048 case PMU_BATSYSCTL_CURRENT:
1049 result = batt.current;
1051 case PMU_BATSYSCTL_VOLTAGE:
1052 result = batt.voltage;
1054 case PMU_BATSYSCTL_TIME:
1055 /* Time remaining until full charge/discharge, in minutes */
1057 if (batt.current >= 0)
1058 result = (batt.maxcharge - batt.charge) /* mAh */ * 60
1059 / batt.current /* mA */;
1061 result = (batt.charge /* mAh */ * 60)
1062 / (-batt.current /* mA */);
1064 case PMU_BATSYSCTL_LIFE:
1065 /* Battery charge fraction, in percent */
1066 result = (batt.charge * 100) / batt.maxcharge;
1069 /* This should never happen */
1073 error = sysctl_handle_int(oidp, &result, 0, req);
1078 #define DIFF19041970 2082844800
1081 pmu_gettime(device_t dev, struct timespec *ts)
1083 struct pmu_softc *sc = device_get_softc(dev);
1087 mtx_lock(&sc->sc_mutex);
1088 pmu_send(sc, PMU_READ_RTC, 0, NULL, 16, resp);
1089 mtx_unlock(&sc->sc_mutex);
1091 memcpy(&sec, &resp[1], 4);
1092 ts->tv_sec = sec - DIFF19041970;
1099 pmu_settime(device_t dev, struct timespec *ts)
1101 struct pmu_softc *sc = device_get_softc(dev);
1104 sec = ts->tv_sec + DIFF19041970;
1106 mtx_lock(&sc->sc_mutex);
1107 pmu_send(sc, PMU_SET_RTC, sizeof(sec), (uint8_t *)&sec, 0, NULL);
1108 mtx_unlock(&sc->sc_mutex);
1114 pmu_set_speed(int low_speed)
1116 struct pmu_softc *sc;
1117 uint8_t sleepcmd[] = {'W', 'O', 'O', 'F', 0};
1120 sc = device_get_softc(pmu);
1121 pmu_write_reg(sc, vIER, 0x10);
1127 sleepcmd[4] = low_speed;
1128 pmu_send(sc, PMU_CPU_SPEED, 5, sleepcmd, 16, resp);
1129 unin_chip_sleep(NULL, 1);
1131 unin_chip_wake(NULL);
1133 mtdec(1); /* Force a decrementer exception */
1135 pmu_write_reg(sc, vIER, 0x90);