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/eventhandler.h>
40 #include <sys/kernel.h>
41 #include <sys/kthread.h>
43 #include <sys/mutex.h>
44 #include <sys/clock.h>
46 #include <sys/reboot.h>
47 #include <sys/sysctl.h>
49 #include <dev/ofw/ofw_bus.h>
50 #include <dev/ofw/openfirm.h>
51 #include <dev/led/led.h>
53 #include <machine/_inttypes.h>
54 #include <machine/bus.h>
55 #include <machine/cpu.h>
56 #include <machine/hid.h>
57 #include <machine/intr_machdep.h>
58 #include <machine/md_var.h>
59 #include <machine/pcb.h>
60 #include <machine/pio.h>
61 #include <machine/resource.h>
68 #include <dev/adb/adb.h>
73 #include "uninorthvar.h" /* For unin_chip_sleep()/unin_chip_wake() */
75 #define PMU_DEFAULTS PMU_INT_TICK | PMU_INT_ADB | \
76 PMU_INT_PCEJECT | PMU_INT_SNDBRT | \
77 PMU_INT_BATTERY | PMU_INT_ENVIRONMENT
82 static int pmu_probe(device_t);
83 static int pmu_attach(device_t);
84 static int pmu_detach(device_t);
89 static int pmu_gettime(device_t dev, struct timespec *ts);
90 static int pmu_settime(device_t dev, struct timespec *ts);
96 static u_int pmu_adb_send(device_t dev, u_char command_byte, int len,
97 u_char *data, u_char poll);
98 static u_int pmu_adb_autopoll(device_t dev, uint16_t mask);
99 static u_int pmu_poll(device_t dev);
105 static void pmu_shutdown(void *xsc, int howto);
106 static void pmu_set_sleepled(void *xsc, int onoff);
107 static int pmu_server_mode(SYSCTL_HANDLER_ARGS);
108 static int pmu_acline_state(SYSCTL_HANDLER_ARGS);
109 static int pmu_query_battery(struct pmu_softc *sc, int batt,
110 struct pmu_battstate *info);
111 static int pmu_battquery_sysctl(SYSCTL_HANDLER_ARGS);
112 static int pmu_battmon(SYSCTL_HANDLER_ARGS);
113 static void pmu_battquery_proc(void);
114 static void pmu_battery_notify(struct pmu_battstate *batt,
115 struct pmu_battstate *old);
118 * List of battery-related sysctls we might ask for
122 PMU_BATSYSCTL_PRESENT = 1 << 8,
123 PMU_BATSYSCTL_CHARGING = 2 << 8,
124 PMU_BATSYSCTL_CHARGE = 3 << 8,
125 PMU_BATSYSCTL_MAXCHARGE = 4 << 8,
126 PMU_BATSYSCTL_CURRENT = 5 << 8,
127 PMU_BATSYSCTL_VOLTAGE = 6 << 8,
128 PMU_BATSYSCTL_TIME = 7 << 8,
129 PMU_BATSYSCTL_LIFE = 8 << 8
132 static device_method_t pmu_methods[] = {
133 /* Device interface */
134 DEVMETHOD(device_probe, pmu_probe),
135 DEVMETHOD(device_attach, pmu_attach),
136 DEVMETHOD(device_detach, pmu_detach),
137 DEVMETHOD(device_shutdown, bus_generic_shutdown),
139 /* ADB bus interface */
140 DEVMETHOD(adb_hb_send_raw_packet, pmu_adb_send),
141 DEVMETHOD(adb_hb_controller_poll, pmu_poll),
142 DEVMETHOD(adb_hb_set_autopoll_mask, pmu_adb_autopoll),
144 /* Clock interface */
145 DEVMETHOD(clock_gettime, pmu_gettime),
146 DEVMETHOD(clock_settime, pmu_settime),
151 static driver_t pmu_driver = {
154 sizeof(struct pmu_softc),
157 static devclass_t pmu_devclass;
159 EARLY_DRIVER_MODULE(pmu, macio, pmu_driver, pmu_devclass, 0, 0,
161 DRIVER_MODULE(adb, pmu, adb_driver, adb_devclass, 0, 0);
163 static int pmuextint_probe(device_t);
164 static int pmuextint_attach(device_t);
166 static device_method_t pmuextint_methods[] = {
167 /* Device interface */
168 DEVMETHOD(device_probe, pmuextint_probe),
169 DEVMETHOD(device_attach, pmuextint_attach),
174 static driver_t pmuextint_driver = {
180 static devclass_t pmuextint_devclass;
182 EARLY_DRIVER_MODULE(pmuextint, macgpio, pmuextint_driver, pmuextint_devclass,
183 0, 0, BUS_PASS_RESOURCE);
185 /* Make sure uhid is loaded, as it turns off some of the ADB emulation */
186 MODULE_DEPEND(pmu, usb, 1, 1, 1);
188 static void pmu_intr(void *arg);
189 static void pmu_in(struct pmu_softc *sc);
190 static void pmu_out(struct pmu_softc *sc);
191 static void pmu_ack_on(struct pmu_softc *sc);
192 static void pmu_ack_off(struct pmu_softc *sc);
193 static int pmu_send(void *cookie, int cmd, int length, uint8_t *in_msg,
194 int rlen, uint8_t *out_msg);
195 static uint8_t pmu_read_reg(struct pmu_softc *sc, u_int offset);
196 static void pmu_write_reg(struct pmu_softc *sc, u_int offset, uint8_t value);
197 static int pmu_intr_state(struct pmu_softc *);
199 /* these values shows that number of data returned after 'send' cmd is sent */
200 static signed char pm_send_cmd_type[] = {
201 -1, -1, -1, -1, -1, -1, -1, -1,
202 -1, -1, -1, -1, -1, -1, -1, -1,
203 0x01, 0x01, -1, -1, -1, -1, -1, -1,
204 0x00, 0x00, -1, -1, -1, -1, -1, 0x00,
205 -1, 0x00, 0x02, 0x01, 0x01, -1, -1, -1,
206 0x00, -1, -1, -1, -1, -1, -1, -1,
207 0x04, 0x14, -1, 0x03, -1, -1, -1, -1,
208 0x00, 0x00, 0x02, 0x02, -1, -1, -1, -1,
209 0x01, 0x01, -1, -1, -1, -1, -1, -1,
210 0x00, 0x00, -1, -1, 0x01, -1, -1, -1,
211 0x01, 0x00, 0x02, 0x02, -1, 0x01, 0x03, 0x01,
212 0x00, 0x01, 0x00, 0x00, 0x00, -1, -1, -1,
213 0x02, -1, -1, -1, -1, -1, -1, -1,
214 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -1, -1,
215 0x01, 0x01, 0x01, -1, -1, -1, -1, -1,
216 0x00, 0x00, -1, -1, -1, 0x05, 0x04, 0x04,
217 0x04, -1, 0x00, -1, -1, -1, -1, -1,
218 0x00, -1, -1, -1, -1, -1, -1, -1,
219 0x01, 0x02, -1, -1, -1, -1, -1, -1,
220 0x00, 0x00, -1, -1, -1, -1, -1, -1,
221 0x02, 0x02, 0x02, 0x04, -1, 0x00, -1, -1,
222 0x01, 0x01, 0x03, 0x02, -1, -1, -1, -1,
223 -1, -1, -1, -1, -1, -1, -1, -1,
224 -1, -1, -1, -1, -1, -1, -1, -1,
225 -1, -1, -1, -1, -1, -1, -1, -1,
226 -1, -1, -1, -1, -1, -1, -1, -1,
227 0x00, -1, -1, -1, -1, -1, -1, -1,
228 0x01, 0x01, -1, -1, 0x00, 0x00, -1, -1,
229 -1, 0x04, 0x00, -1, -1, -1, -1, -1,
230 0x03, -1, 0x00, -1, 0x00, -1, -1, 0x00,
231 -1, -1, -1, -1, -1, -1, -1, -1,
232 -1, -1, -1, -1, -1, -1, -1, -1
235 /* these values shows that number of data returned after 'receive' cmd is sent */
236 static signed char pm_receive_cmd_type[] = {
237 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
238 -1, -1, -1, -1, -1, -1, -1, -1,
239 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
240 0x02, 0x02, -1, -1, -1, -1, -1, 0x00,
241 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
242 -1, -1, -1, -1, -1, -1, -1, -1,
243 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
244 0x05, 0x15, -1, 0x02, -1, -1, -1, -1,
245 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
246 0x02, 0x02, -1, -1, -1, -1, -1, -1,
247 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
248 0x02, 0x00, 0x03, 0x03, -1, -1, -1, -1,
249 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
250 0x04, 0x04, 0x03, 0x09, -1, -1, -1, -1,
251 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
252 -1, -1, -1, -1, -1, 0x01, 0x01, 0x01,
253 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
254 0x06, -1, -1, -1, -1, -1, -1, -1,
255 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
256 0x02, 0x02, -1, -1, -1, -1, -1, -1,
257 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
258 0x02, 0x00, 0x00, 0x00, -1, -1, -1, -1,
259 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
260 -1, -1, -1, -1, -1, -1, -1, -1,
261 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
262 -1, -1, -1, -1, -1, -1, -1, -1,
263 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
264 0x02, 0x02, -1, -1, 0x02, -1, -1, -1,
265 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
266 -1, -1, 0x02, -1, -1, -1, -1, 0x00,
267 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
268 -1, -1, -1, -1, -1, -1, -1, -1,
271 static int pmu_battmon_enabled = 1;
272 static struct proc *pmubattproc;
273 static struct kproc_desc pmu_batt_kp = {
279 /* We only have one of each device, so globals are safe */
280 static device_t pmu = NULL;
281 static device_t pmu_extint = NULL;
284 pmuextint_probe(device_t dev)
286 const char *type = ofw_bus_get_type(dev);
288 if (strcmp(type, "extint-gpio1") != 0)
291 device_set_desc(dev, "Apple PMU99 External Interrupt");
296 pmu_probe(device_t dev)
298 const char *type = ofw_bus_get_type(dev);
300 if (strcmp(type, "via-pmu") != 0)
303 device_set_desc(dev, "Apple PMU99 Controller");
309 setup_pmu_intr(device_t dev, device_t extint)
311 struct pmu_softc *sc;
312 sc = device_get_softc(dev);
315 sc->sc_irq = bus_alloc_resource_any(extint, SYS_RES_IRQ, &sc->sc_irqrid,
317 if (sc->sc_irq == NULL) {
318 device_printf(dev, "could not allocate interrupt\n");
322 if (bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_MISC | INTR_MPSAFE
323 | INTR_ENTROPY, NULL, pmu_intr, dev, &sc->sc_ih) != 0) {
324 device_printf(dev, "could not setup interrupt\n");
325 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irqrid,
334 pmuextint_attach(device_t dev)
338 return (setup_pmu_intr(pmu,dev));
344 pmu_attach(device_t dev)
346 struct pmu_softc *sc;
350 uint8_t cmd[2] = {2, 0};
352 phandle_t node,child;
353 struct sysctl_ctx_list *ctx;
354 struct sysctl_oid *tree;
356 sc = device_get_softc(dev);
360 sc->sc_memr = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
361 &sc->sc_memrid, RF_ACTIVE);
363 mtx_init(&sc->sc_mutex,"pmu",NULL,MTX_DEF | MTX_RECURSE);
365 if (sc->sc_memr == NULL) {
366 device_printf(dev, "Could not alloc mem resource!\n");
371 * Our interrupt is attached to a GPIO pin. Depending on probe order,
372 * we may not have found it yet. If we haven't, it will find us, and
373 * attach our interrupt then.
376 if (pmu_extint != NULL) {
377 if (setup_pmu_intr(dev,pmu_extint) != 0)
382 sc->sc_batteries = 0;
384 sc->sc_leddev = NULL;
388 pmu_write_reg(sc, vBufB, pmu_read_reg(sc, vBufB) | vPB4);
389 pmu_write_reg(sc, vDirB, (pmu_read_reg(sc, vDirB) | vPB4) & ~vPB3);
392 pmu_send(sc, PMU_SET_IMASK, 1, ®, 16, resp);
394 pmu_write_reg(sc, vIER, 0x94); /* make sure VIA interrupts are on */
396 pmu_send(sc, PMU_SYSTEM_READY, 1, cmd, 16, resp);
397 pmu_send(sc, PMU_GET_VERSION, 0, cmd, 16, resp);
399 /* Initialize child buses (ADB) */
400 node = ofw_bus_get_node(dev);
402 for (child = OF_child(node); child != 0; child = OF_peer(child)) {
405 memset(name, 0, sizeof(name));
406 OF_getprop(child, "name", name, sizeof(name));
409 device_printf(dev, "PMU child <%s>\n",name);
411 if (strncmp(name, "adb", 4) == 0) {
412 sc->adb_bus = device_add_child(dev,"adb",-1);
415 if (strncmp(name, "power-mgt", 9) == 0) {
416 uint32_t prim_info[9];
418 if (OF_getprop(child, "prim-info", prim_info,
419 sizeof(prim_info)) >= 7)
420 sc->sc_batteries = (prim_info[6] >> 16) & 0xff;
422 if (bootverbose && sc->sc_batteries > 0)
423 device_printf(dev, "%d batteries detected\n",
432 ctx = device_get_sysctl_ctx(dev);
433 tree = device_get_sysctl_tree(dev);
435 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
436 "server_mode", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, 0,
437 pmu_server_mode, "I", "Enable reboot after power failure");
439 if (sc->sc_batteries > 0) {
440 struct sysctl_oid *oid, *battroot;
443 /* Only start the battery monitor if we have a battery. */
444 kproc_start(&pmu_batt_kp);
445 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
447 CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, sc, 0,
448 pmu_battmon, "I", "Post battery events to devd");
451 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
452 "acline", CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
453 0, pmu_acline_state, "I", "AC Line Status");
455 battroot = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
456 "batteries", CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
457 "Battery Information");
459 for (i = 0; i < sc->sc_batteries; i++) {
460 battnum[0] = i + '0';
463 oid = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(battroot),
464 OID_AUTO, battnum, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
465 "Battery Information");
467 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
469 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
470 PMU_BATSYSCTL_PRESENT | i, pmu_battquery_sysctl,
471 "I", "Battery present");
472 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
474 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
475 PMU_BATSYSCTL_CHARGING | i, pmu_battquery_sysctl,
476 "I", "Battery charging");
477 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
479 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
480 PMU_BATSYSCTL_CHARGE | i, pmu_battquery_sysctl,
481 "I", "Battery charge (mAh)");
482 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
484 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
485 PMU_BATSYSCTL_MAXCHARGE | i, pmu_battquery_sysctl,
486 "I", "Maximum battery capacity (mAh)");
487 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
489 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
490 PMU_BATSYSCTL_CURRENT | i, pmu_battquery_sysctl,
491 "I", "Battery discharge rate (mA)");
492 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
494 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
495 PMU_BATSYSCTL_VOLTAGE | i, pmu_battquery_sysctl,
496 "I", "Battery voltage (mV)");
498 /* Knobs for mental compatibility with ACPI */
500 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
502 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
503 PMU_BATSYSCTL_TIME | i, pmu_battquery_sysctl,
504 "I", "Time Remaining (minutes)");
505 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
507 CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_MPSAFE, sc,
508 PMU_BATSYSCTL_LIFE | i, pmu_battquery_sysctl,
509 "I", "Capacity remaining (percent)");
514 * Set up LED interface
517 sc->sc_leddev = led_create(pmu_set_sleepled, sc, "sleepled");
523 clock_register(dev, 1000);
526 * Register power control handler
528 EVENTHANDLER_REGISTER(shutdown_final, pmu_shutdown, sc,
531 return (bus_generic_attach(dev));
535 pmu_detach(device_t dev)
537 struct pmu_softc *sc;
539 sc = device_get_softc(dev);
541 if (sc->sc_leddev != NULL)
542 led_destroy(sc->sc_leddev);
544 bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
545 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irqrid, sc->sc_irq);
546 bus_release_resource(dev, SYS_RES_MEMORY, sc->sc_memrid, sc->sc_memr);
547 mtx_destroy(&sc->sc_mutex);
549 return (bus_generic_detach(dev));
553 pmu_read_reg(struct pmu_softc *sc, u_int offset)
555 return (bus_read_1(sc->sc_memr, offset));
559 pmu_write_reg(struct pmu_softc *sc, u_int offset, uint8_t value)
561 bus_write_1(sc->sc_memr, offset, value);
565 pmu_send_byte(struct pmu_softc *sc, uint8_t data)
569 pmu_write_reg(sc, vSR, data);
571 /* wait for intr to come up */
572 /* XXX should add a timeout and bail if it expires */
573 do {} while (pmu_intr_state(sc) == 0);
575 do {} while (pmu_intr_state(sc));
581 pmu_read_byte(struct pmu_softc *sc, uint8_t *data)
583 volatile uint8_t scratch;
585 scratch = pmu_read_reg(sc, vSR);
587 /* wait for intr to come up */
588 do {} while (pmu_intr_state(sc) == 0);
590 do {} while (pmu_intr_state(sc));
591 *data = pmu_read_reg(sc, vSR);
596 pmu_intr_state(struct pmu_softc *sc)
598 return ((pmu_read_reg(sc, vBufB) & vPB3) == 0);
602 pmu_send(void *cookie, int cmd, int length, uint8_t *in_msg, int rlen,
605 struct pmu_softc *sc = cookie;
607 uint8_t out_len, intreg;
609 intreg = pmu_read_reg(sc, vIER);
611 pmu_write_reg(sc, vIER, intreg);
614 do {} while (pmu_intr_state(sc));
617 pmu_send_byte(sc, cmd);
619 /* send length if necessary */
620 if (pm_send_cmd_type[cmd] < 0) {
621 pmu_send_byte(sc, length);
624 for (i = 0; i < length; i++) {
625 pmu_send_byte(sc, in_msg[i]);
628 /* see if there's data to read */
629 rcv_len = pm_receive_cmd_type[cmd];
635 pmu_read_byte(sc, out_msg);
640 pmu_read_byte(sc, &out_len);
641 rcv_len = out_len + 1;
643 for (i = 1; i < min(rcv_len, rlen); i++)
644 pmu_read_byte(sc, &out_msg[i]);
647 pmu_write_reg(sc, vIER, (intreg == 0) ? 0 : 0x90);
654 pmu_poll(device_t dev)
661 pmu_in(struct pmu_softc *sc)
665 reg = pmu_read_reg(sc, vACR);
668 pmu_write_reg(sc, vACR, reg);
672 pmu_out(struct pmu_softc *sc)
676 reg = pmu_read_reg(sc, vACR);
679 pmu_write_reg(sc, vACR, reg);
683 pmu_ack_off(struct pmu_softc *sc)
687 reg = pmu_read_reg(sc, vBufB);
689 pmu_write_reg(sc, vBufB, reg);
693 pmu_ack_on(struct pmu_softc *sc)
697 reg = pmu_read_reg(sc, vBufB);
699 pmu_write_reg(sc, vBufB, reg);
706 struct pmu_softc *sc;
713 sc = device_get_softc(dev);
715 mtx_lock(&sc->sc_mutex);
717 pmu_write_reg(sc, vIFR, 0x90); /* Clear 'em */
718 len = pmu_send(sc, PMU_INT_ACK, 0, NULL, 16, resp);
720 mtx_unlock(&sc->sc_mutex);
722 if ((len < 1) || (resp[1] == 0)) {
726 if (resp[1] & PMU_INT_ADB) {
728 * the PMU will turn off autopolling after each command that
729 * it did not issue, so we assume any but TALK R0 is ours and
730 * re-enable autopoll here whenever we receive an ACK for a
733 mtx_lock(&sc->sc_mutex);
735 if ((resp[2] & 0x0f) != (ADB_COMMAND_TALK << 2)) {
736 if (sc->sc_autopoll) {
737 uint8_t cmd[] = {0, PMU_SET_POLL_MASK,
738 (sc->sc_autopoll >> 8) & 0xff,
739 sc->sc_autopoll & 0xff};
741 pmu_send(sc, PMU_ADB_CMD, 4, cmd, 16, junk);
745 mtx_unlock(&sc->sc_mutex);
747 adb_receive_raw_packet(sc->adb_bus,resp[1],resp[2],
750 if (resp[1] & PMU_INT_ENVIRONMENT) {
751 /* if the lid was just closed, notify devd. */
752 if ((resp[2] & PMU_ENV_LID_CLOSED) && (!sc->lid_closed)) {
754 devctl_notify("PMU", "lid", "close", NULL);
756 else if (!(resp[2] & PMU_ENV_LID_CLOSED) && (sc->lid_closed)) {
757 /* if the lid was just opened, notify devd. */
759 devctl_notify("PMU", "lid", "open", NULL);
761 if (resp[2] & PMU_ENV_POWER)
762 devctl_notify("PMU", "Button", "pressed", NULL);
767 pmu_adb_send(device_t dev, u_char command_byte, int len, u_char *data,
770 struct pmu_softc *sc = device_get_softc(dev);
772 uint8_t packet[16], resp[16];
774 /* construct an ADB command packet and send it */
776 packet[0] = command_byte;
780 for (i = 0; i < len; i++)
781 packet[i + 3] = data[i];
783 mtx_lock(&sc->sc_mutex);
784 replen = pmu_send(sc, PMU_ADB_CMD, len + 3, packet, 16, resp);
785 mtx_unlock(&sc->sc_mutex);
794 pmu_adb_autopoll(device_t dev, uint16_t mask)
796 struct pmu_softc *sc = device_get_softc(dev);
798 /* magical incantation to re-enable autopolling */
799 uint8_t cmd[] = {0, PMU_SET_POLL_MASK, (mask >> 8) & 0xff, mask & 0xff};
802 mtx_lock(&sc->sc_mutex);
804 if (sc->sc_autopoll == mask) {
805 mtx_unlock(&sc->sc_mutex);
809 sc->sc_autopoll = mask & 0xffff;
812 pmu_send(sc, PMU_ADB_CMD, 4, cmd, 16, resp);
814 pmu_send(sc, PMU_ADB_POLL_OFF, 0, NULL, 16, resp);
816 mtx_unlock(&sc->sc_mutex);
822 pmu_shutdown(void *xsc, int howto)
824 struct pmu_softc *sc = xsc;
825 uint8_t cmd[] = {'M', 'A', 'T', 'T'};
828 pmu_send(sc, PMU_POWER_OFF, 4, cmd, 0, NULL);
830 pmu_send(sc, PMU_RESET_CPU, 0, NULL, 0, NULL);
836 pmu_set_sleepled(void *xsc, int onoff)
838 struct pmu_softc *sc = xsc;
839 uint8_t cmd[] = {4, 0, 0};
843 mtx_lock(&sc->sc_mutex);
844 pmu_send(sc, PMU_SET_SLEEPLED, 3, cmd, 0, NULL);
845 mtx_unlock(&sc->sc_mutex);
849 pmu_server_mode(SYSCTL_HANDLER_ARGS)
851 struct pmu_softc *sc = arg1;
853 u_int server_mode = 0;
854 uint8_t getcmd[] = {PMU_PWR_GET_POWERUP_EVENTS};
855 uint8_t setcmd[] = {0, 0, PMU_PWR_WAKEUP_AC_INSERT};
859 mtx_lock(&sc->sc_mutex);
860 len = pmu_send(sc, PMU_POWER_EVENTS, 1, getcmd, 3, resp);
861 mtx_unlock(&sc->sc_mutex);
864 server_mode = (resp[2] & PMU_PWR_WAKEUP_AC_INSERT) ? 1 : 0;
866 error = sysctl_handle_int(oidp, &server_mode, 0, req);
871 if (error || !req->newptr)
874 if (server_mode == 1)
875 setcmd[0] = PMU_PWR_SET_POWERUP_EVENTS;
876 else if (server_mode == 0)
877 setcmd[0] = PMU_PWR_CLR_POWERUP_EVENTS;
883 mtx_lock(&sc->sc_mutex);
884 pmu_send(sc, PMU_POWER_EVENTS, 3, setcmd, 2, resp);
885 mtx_unlock(&sc->sc_mutex);
891 pmu_query_battery(struct pmu_softc *sc, int batt, struct pmu_battstate *info)
899 mtx_lock(&sc->sc_mutex);
900 len = pmu_send(sc, PMU_SMART_BATTERY_STATE, 1, ®, 16, resp);
901 mtx_unlock(&sc->sc_mutex);
906 /* All PMU battery info replies share a common header:
907 * Byte 1 Payload Format
908 * Byte 2 Battery Flags
911 info->state = resp[2];
917 * Formats 3 and 4 appear to be the same:
924 info->charge = resp[3];
925 info->maxcharge = resp[4];
926 /* Current can be positive or negative */
927 info->current = (int8_t)resp[5];
928 info->voltage = resp[6];
932 * Formats 5 is a wider version of formats 3 and 4
934 * Byte 5-6 Max Charge
939 info->charge = (resp[3] << 8) | resp[4];
940 info->maxcharge = (resp[5] << 8) | resp[6];
941 /* Current can be positive or negative */
942 info->current = (int16_t)((resp[7] << 8) | resp[8]);
943 info->voltage = (resp[9] << 8) | resp[10];
946 device_printf(sc->sc_dev, "Unknown battery info format (%d)!\n",
955 pmu_battery_notify(struct pmu_battstate *batt, struct pmu_battstate *old)
958 int new_acline, old_acline;
960 new_acline = (batt->state & PMU_PWR_AC_PRESENT) ? 1 : 0;
961 old_acline = (old->state & PMU_PWR_AC_PRESENT) ? 1 : 0;
963 if (new_acline != old_acline) {
964 snprintf(notify_buf, sizeof(notify_buf),
965 "notify=0x%02x", new_acline);
966 devctl_notify("PMU", "POWER", "ACLINE", notify_buf);
973 struct pmu_softc *sc;
974 struct pmu_battstate batt;
975 struct pmu_battstate cur_batt;
978 sc = device_get_softc(pmu);
980 bzero(&cur_batt, sizeof(cur_batt));
982 kproc_suspend_check(curproc);
983 error = pmu_query_battery(sc, 0, &batt);
984 pmu_battery_notify(&batt, &cur_batt);
986 pause("pmu_batt", hz);
991 pmu_battmon(SYSCTL_HANDLER_ARGS)
993 struct pmu_softc *sc;
997 result = pmu_battmon_enabled;
999 error = sysctl_handle_int(oidp, &result, 0, req);
1001 if (error || !req->newptr)
1004 if (!result && pmu_battmon_enabled)
1005 error = kproc_suspend(pmubattproc, hz);
1006 else if (result && pmu_battmon_enabled == 0)
1007 error = kproc_resume(pmubattproc);
1008 pmu_battmon_enabled = (result != 0);
1014 pmu_acline_state(SYSCTL_HANDLER_ARGS)
1016 struct pmu_softc *sc;
1017 struct pmu_battstate batt;
1022 /* The PMU treats the AC line status as a property of the battery */
1023 error = pmu_query_battery(sc, 0, &batt);
1028 result = (batt.state & PMU_PWR_AC_PRESENT) ? 1 : 0;
1029 error = sysctl_handle_int(oidp, &result, 0, req);
1035 pmu_battquery_sysctl(SYSCTL_HANDLER_ARGS)
1037 struct pmu_softc *sc;
1038 struct pmu_battstate batt;
1043 error = pmu_query_battery(sc, arg2 & 0x00ff, &batt);
1048 switch (arg2 & 0xff00) {
1049 case PMU_BATSYSCTL_PRESENT:
1050 result = (batt.state & PMU_PWR_BATT_PRESENT) ? 1 : 0;
1052 case PMU_BATSYSCTL_CHARGING:
1053 result = (batt.state & PMU_PWR_BATT_CHARGING) ? 1 : 0;
1055 case PMU_BATSYSCTL_CHARGE:
1056 result = batt.charge;
1058 case PMU_BATSYSCTL_MAXCHARGE:
1059 result = batt.maxcharge;
1061 case PMU_BATSYSCTL_CURRENT:
1062 result = batt.current;
1064 case PMU_BATSYSCTL_VOLTAGE:
1065 result = batt.voltage;
1067 case PMU_BATSYSCTL_TIME:
1068 /* Time remaining until full charge/discharge, in minutes */
1070 if (batt.current >= 0)
1071 result = (batt.maxcharge - batt.charge) /* mAh */ * 60
1072 / batt.current /* mA */;
1074 result = (batt.charge /* mAh */ * 60)
1075 / (-batt.current /* mA */);
1077 case PMU_BATSYSCTL_LIFE:
1078 /* Battery charge fraction, in percent */
1079 result = (batt.charge * 100) / batt.maxcharge;
1082 /* This should never happen */
1086 error = sysctl_handle_int(oidp, &result, 0, req);
1091 #define DIFF19041970 2082844800
1094 pmu_gettime(device_t dev, struct timespec *ts)
1096 struct pmu_softc *sc = device_get_softc(dev);
1100 mtx_lock(&sc->sc_mutex);
1101 pmu_send(sc, PMU_READ_RTC, 0, NULL, 16, resp);
1102 mtx_unlock(&sc->sc_mutex);
1104 memcpy(&sec, &resp[1], 4);
1105 ts->tv_sec = sec - DIFF19041970;
1112 pmu_settime(device_t dev, struct timespec *ts)
1114 struct pmu_softc *sc = device_get_softc(dev);
1117 sec = ts->tv_sec + DIFF19041970;
1119 mtx_lock(&sc->sc_mutex);
1120 pmu_send(sc, PMU_SET_RTC, sizeof(sec), (uint8_t *)&sec, 0, NULL);
1121 mtx_unlock(&sc->sc_mutex);
1127 pmu_set_speed(int low_speed)
1129 struct pmu_softc *sc;
1130 uint8_t sleepcmd[] = {'W', 'O', 'O', 'F', 0};
1133 sc = device_get_softc(pmu);
1134 pmu_write_reg(sc, vIER, 0x10);
1140 sleepcmd[4] = low_speed;
1141 pmu_send(sc, PMU_CPU_SPEED, 5, sleepcmd, 16, resp);
1142 unin_chip_sleep(NULL, 1);
1144 unin_chip_wake(NULL);
1146 mtdec(1); /* Force a decrementer exception */
1148 pmu_write_reg(sc, vIER, 0x90);