2 * Copyright (c) 2006 Michael Lorenz
3 * Copyright 2008 by Nathan Whitehorn
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 #include <sys/module.h>
37 #include <sys/kernel.h>
38 #include <sys/kthread.h>
39 #include <sys/clock.h>
41 #include <sys/reboot.h>
42 #include <sys/sysctl.h>
44 #include <dev/ofw/ofw_bus.h>
45 #include <dev/ofw/openfirm.h>
46 #include <dev/led/led.h>
48 #include <machine/_inttypes.h>
49 #include <machine/bus.h>
50 #include <machine/cpu.h>
51 #include <machine/hid.h>
52 #include <machine/intr_machdep.h>
53 #include <machine/md_var.h>
54 #include <machine/pcb.h>
55 #include <machine/pio.h>
56 #include <machine/resource.h>
63 #include <dev/adb/adb.h>
68 #include "uninorthvar.h" /* For unin_chip_sleep()/unin_chip_wake() */
70 #define PMU_DEFAULTS PMU_INT_TICK | PMU_INT_ADB | \
71 PMU_INT_PCEJECT | PMU_INT_SNDBRT | \
72 PMU_INT_BATTERY | PMU_INT_ENVIRONMENT
77 static int pmu_probe(device_t);
78 static int pmu_attach(device_t);
79 static int pmu_detach(device_t);
84 static int pmu_gettime(device_t dev, struct timespec *ts);
85 static int pmu_settime(device_t dev, struct timespec *ts);
91 static u_int pmu_adb_send(device_t dev, u_char command_byte, int len,
92 u_char *data, u_char poll);
93 static u_int pmu_adb_autopoll(device_t dev, uint16_t mask);
94 static u_int pmu_poll(device_t dev);
100 static void pmu_shutdown(void *xsc, int howto);
101 static void pmu_set_sleepled(void *xsc, int onoff);
102 static int pmu_server_mode(SYSCTL_HANDLER_ARGS);
103 static int pmu_acline_state(SYSCTL_HANDLER_ARGS);
104 static int pmu_query_battery(struct pmu_softc *sc, int batt,
105 struct pmu_battstate *info);
106 static int pmu_battquery_sysctl(SYSCTL_HANDLER_ARGS);
107 static int pmu_battmon(SYSCTL_HANDLER_ARGS);
108 static void pmu_battquery_proc(void);
109 static void pmu_battery_notify(struct pmu_battstate *batt,
110 struct pmu_battstate *old);
113 * List of battery-related sysctls we might ask for
117 PMU_BATSYSCTL_PRESENT = 1 << 8,
118 PMU_BATSYSCTL_CHARGING = 2 << 8,
119 PMU_BATSYSCTL_CHARGE = 3 << 8,
120 PMU_BATSYSCTL_MAXCHARGE = 4 << 8,
121 PMU_BATSYSCTL_CURRENT = 5 << 8,
122 PMU_BATSYSCTL_VOLTAGE = 6 << 8,
123 PMU_BATSYSCTL_TIME = 7 << 8,
124 PMU_BATSYSCTL_LIFE = 8 << 8
127 static device_method_t pmu_methods[] = {
128 /* Device interface */
129 DEVMETHOD(device_probe, pmu_probe),
130 DEVMETHOD(device_attach, pmu_attach),
131 DEVMETHOD(device_detach, pmu_detach),
132 DEVMETHOD(device_shutdown, bus_generic_shutdown),
134 /* ADB bus interface */
135 DEVMETHOD(adb_hb_send_raw_packet, pmu_adb_send),
136 DEVMETHOD(adb_hb_controller_poll, pmu_poll),
137 DEVMETHOD(adb_hb_set_autopoll_mask, pmu_adb_autopoll),
139 /* Clock interface */
140 DEVMETHOD(clock_gettime, pmu_gettime),
141 DEVMETHOD(clock_settime, pmu_settime),
146 static driver_t pmu_driver = {
149 sizeof(struct pmu_softc),
152 static devclass_t pmu_devclass;
154 DRIVER_MODULE(pmu, macio, pmu_driver, pmu_devclass, 0, 0);
155 DRIVER_MODULE(adb, pmu, adb_driver, adb_devclass, 0, 0);
157 static int pmuextint_probe(device_t);
158 static int pmuextint_attach(device_t);
160 static device_method_t pmuextint_methods[] = {
161 /* Device interface */
162 DEVMETHOD(device_probe, pmuextint_probe),
163 DEVMETHOD(device_attach, pmuextint_attach),
168 static driver_t pmuextint_driver = {
174 static devclass_t pmuextint_devclass;
176 DRIVER_MODULE(pmuextint, macgpio, pmuextint_driver, pmuextint_devclass, 0, 0);
178 /* Make sure uhid is loaded, as it turns off some of the ADB emulation */
179 MODULE_DEPEND(pmu, usb, 1, 1, 1);
181 static void pmu_intr(void *arg);
182 static void pmu_in(struct pmu_softc *sc);
183 static void pmu_out(struct pmu_softc *sc);
184 static void pmu_ack_on(struct pmu_softc *sc);
185 static void pmu_ack_off(struct pmu_softc *sc);
186 static int pmu_send(void *cookie, int cmd, int length, uint8_t *in_msg,
187 int rlen, uint8_t *out_msg);
188 static uint8_t pmu_read_reg(struct pmu_softc *sc, u_int offset);
189 static void pmu_write_reg(struct pmu_softc *sc, u_int offset, uint8_t value);
190 static int pmu_intr_state(struct pmu_softc *);
192 /* these values shows that number of data returned after 'send' cmd is sent */
193 static signed char pm_send_cmd_type[] = {
194 -1, -1, -1, -1, -1, -1, -1, -1,
195 -1, -1, -1, -1, -1, -1, -1, -1,
196 0x01, 0x01, -1, -1, -1, -1, -1, -1,
197 0x00, 0x00, -1, -1, -1, -1, -1, 0x00,
198 -1, 0x00, 0x02, 0x01, 0x01, -1, -1, -1,
199 0x00, -1, -1, -1, -1, -1, -1, -1,
200 0x04, 0x14, -1, 0x03, -1, -1, -1, -1,
201 0x00, 0x00, 0x02, 0x02, -1, -1, -1, -1,
202 0x01, 0x01, -1, -1, -1, -1, -1, -1,
203 0x00, 0x00, -1, -1, 0x01, -1, -1, -1,
204 0x01, 0x00, 0x02, 0x02, -1, 0x01, 0x03, 0x01,
205 0x00, 0x01, 0x00, 0x00, 0x00, -1, -1, -1,
206 0x02, -1, -1, -1, -1, -1, -1, -1,
207 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -1, -1,
208 0x01, 0x01, 0x01, -1, -1, -1, -1, -1,
209 0x00, 0x00, -1, -1, -1, 0x05, 0x04, 0x04,
210 0x04, -1, 0x00, -1, -1, -1, -1, -1,
211 0x00, -1, -1, -1, -1, -1, -1, -1,
212 0x01, 0x02, -1, -1, -1, -1, -1, -1,
213 0x00, 0x00, -1, -1, -1, -1, -1, -1,
214 0x02, 0x02, 0x02, 0x04, -1, 0x00, -1, -1,
215 0x01, 0x01, 0x03, 0x02, -1, -1, -1, -1,
216 -1, -1, -1, -1, -1, -1, -1, -1,
217 -1, -1, -1, -1, -1, -1, -1, -1,
218 -1, -1, -1, -1, -1, -1, -1, -1,
219 -1, -1, -1, -1, -1, -1, -1, -1,
220 0x00, -1, -1, -1, -1, -1, -1, -1,
221 0x01, 0x01, -1, -1, 0x00, 0x00, -1, -1,
222 -1, 0x04, 0x00, -1, -1, -1, -1, -1,
223 0x03, -1, 0x00, -1, 0x00, -1, -1, 0x00,
224 -1, -1, -1, -1, -1, -1, -1, -1,
225 -1, -1, -1, -1, -1, -1, -1, -1
228 /* these values shows that number of data returned after 'receive' cmd is sent */
229 static signed char pm_receive_cmd_type[] = {
230 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
231 -1, -1, -1, -1, -1, -1, -1, -1,
232 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
233 0x02, 0x02, -1, -1, -1, -1, -1, 0x00,
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 0x05, 0x15, -1, 0x02, -1, -1, -1, -1,
238 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
239 0x02, 0x02, -1, -1, -1, -1, -1, -1,
240 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
241 0x02, 0x00, 0x03, 0x03, -1, -1, -1, -1,
242 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
243 0x04, 0x04, 0x03, 0x09, -1, -1, -1, -1,
244 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
245 -1, -1, -1, -1, -1, 0x01, 0x01, 0x01,
246 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
247 0x06, -1, -1, -1, -1, -1, -1, -1,
248 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
249 0x02, 0x02, -1, -1, -1, -1, -1, -1,
250 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
251 0x02, 0x00, 0x00, 0x00, -1, -1, -1, -1,
252 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
253 -1, -1, -1, -1, -1, -1, -1, -1,
254 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
255 -1, -1, -1, -1, -1, -1, -1, -1,
256 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
257 0x02, 0x02, -1, -1, 0x02, -1, -1, -1,
258 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
259 -1, -1, 0x02, -1, -1, -1, -1, 0x00,
260 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
261 -1, -1, -1, -1, -1, -1, -1, -1,
264 static int pmu_battmon_enabled = 1;
265 static struct proc *pmubattproc;
266 static struct kproc_desc pmu_batt_kp = {
272 /* We only have one of each device, so globals are safe */
273 static device_t pmu = NULL;
274 static device_t pmu_extint = NULL;
277 pmuextint_probe(device_t dev)
279 const char *type = ofw_bus_get_type(dev);
281 if (strcmp(type, "extint-gpio1") != 0)
284 device_set_desc(dev, "Apple PMU99 External Interrupt");
289 pmu_probe(device_t dev)
291 const char *type = ofw_bus_get_type(dev);
293 if (strcmp(type, "via-pmu") != 0)
296 device_set_desc(dev, "Apple PMU99 Controller");
302 setup_pmu_intr(device_t dev, device_t extint)
304 struct pmu_softc *sc;
305 sc = device_get_softc(dev);
308 sc->sc_irq = bus_alloc_resource_any(extint, SYS_RES_IRQ, &sc->sc_irqrid,
310 if (sc->sc_irq == NULL) {
311 device_printf(dev, "could not allocate interrupt\n");
315 if (bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_MISC | INTR_MPSAFE
316 | INTR_ENTROPY, NULL, pmu_intr, dev, &sc->sc_ih) != 0) {
317 device_printf(dev, "could not setup interrupt\n");
318 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irqrid,
327 pmuextint_attach(device_t dev)
331 return (setup_pmu_intr(pmu,dev));
337 pmu_attach(device_t dev)
339 struct pmu_softc *sc;
343 uint8_t cmd[2] = {2, 0};
345 phandle_t node,child;
346 struct sysctl_ctx_list *ctx;
347 struct sysctl_oid *tree;
349 sc = device_get_softc(dev);
353 sc->sc_memr = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
354 &sc->sc_memrid, RF_ACTIVE);
356 mtx_init(&sc->sc_mutex,"pmu",NULL,MTX_DEF | MTX_RECURSE);
358 if (sc->sc_memr == NULL) {
359 device_printf(dev, "Could not alloc mem resource!\n");
364 * Our interrupt is attached to a GPIO pin. Depending on probe order,
365 * we may not have found it yet. If we haven't, it will find us, and
366 * attach our interrupt then.
369 if (pmu_extint != NULL) {
370 if (setup_pmu_intr(dev,pmu_extint) != 0)
375 sc->sc_batteries = 0;
377 sc->sc_leddev = NULL;
381 pmu_write_reg(sc, vBufB, pmu_read_reg(sc, vBufB) | vPB4);
382 pmu_write_reg(sc, vDirB, (pmu_read_reg(sc, vDirB) | vPB4) & ~vPB3);
385 pmu_send(sc, PMU_SET_IMASK, 1, ®, 16, resp);
387 pmu_write_reg(sc, vIER, 0x94); /* make sure VIA interrupts are on */
389 pmu_send(sc, PMU_SYSTEM_READY, 1, cmd, 16, resp);
390 pmu_send(sc, PMU_GET_VERSION, 0, cmd, 16, resp);
392 /* Initialize child buses (ADB) */
393 node = ofw_bus_get_node(dev);
395 for (child = OF_child(node); child != 0; child = OF_peer(child)) {
398 memset(name, 0, sizeof(name));
399 OF_getprop(child, "name", name, sizeof(name));
402 device_printf(dev, "PMU child <%s>\n",name);
404 if (strncmp(name, "adb", 4) == 0) {
405 sc->adb_bus = device_add_child(dev,"adb",-1);
408 if (strncmp(name, "power-mgt", 9) == 0) {
409 uint32_t prim_info[9];
411 if (OF_getprop(child, "prim-info", prim_info,
412 sizeof(prim_info)) >= 7)
413 sc->sc_batteries = (prim_info[6] >> 16) & 0xff;
415 if (bootverbose && sc->sc_batteries > 0)
416 device_printf(dev, "%d batteries detected\n",
425 ctx = device_get_sysctl_ctx(dev);
426 tree = device_get_sysctl_tree(dev);
428 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
429 "server_mode", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
430 pmu_server_mode, "I", "Enable reboot after power failure");
432 if (sc->sc_batteries > 0) {
433 struct sysctl_oid *oid, *battroot;
436 /* Only start the battery monitor if we have a battery. */
437 kproc_start(&pmu_batt_kp);
438 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
439 "monitor_batteries", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
440 pmu_battmon, "I", "Post battery events to devd");
443 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
444 "acline", CTLTYPE_INT | CTLFLAG_RD, sc, 0,
445 pmu_acline_state, "I", "AC Line Status");
447 battroot = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
448 "batteries", CTLFLAG_RD, 0, "Battery Information");
450 for (i = 0; i < sc->sc_batteries; i++) {
451 battnum[0] = i + '0';
454 oid = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(battroot),
455 OID_AUTO, battnum, CTLFLAG_RD, 0,
456 "Battery Information");
458 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
459 "present", CTLTYPE_INT | CTLFLAG_RD, sc,
460 PMU_BATSYSCTL_PRESENT | i, pmu_battquery_sysctl,
461 "I", "Battery present");
462 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
463 "charging", CTLTYPE_INT | CTLFLAG_RD, sc,
464 PMU_BATSYSCTL_CHARGING | i, pmu_battquery_sysctl,
465 "I", "Battery charging");
466 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
467 "charge", CTLTYPE_INT | CTLFLAG_RD, sc,
468 PMU_BATSYSCTL_CHARGE | i, pmu_battquery_sysctl,
469 "I", "Battery charge (mAh)");
470 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
471 "maxcharge", CTLTYPE_INT | CTLFLAG_RD, sc,
472 PMU_BATSYSCTL_MAXCHARGE | i, pmu_battquery_sysctl,
473 "I", "Maximum battery capacity (mAh)");
474 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
475 "rate", CTLTYPE_INT | CTLFLAG_RD, sc,
476 PMU_BATSYSCTL_CURRENT | i, pmu_battquery_sysctl,
477 "I", "Battery discharge rate (mA)");
478 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
479 "voltage", CTLTYPE_INT | CTLFLAG_RD, sc,
480 PMU_BATSYSCTL_VOLTAGE | i, pmu_battquery_sysctl,
481 "I", "Battery voltage (mV)");
483 /* Knobs for mental compatibility with ACPI */
485 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
486 "time", CTLTYPE_INT | CTLFLAG_RD, sc,
487 PMU_BATSYSCTL_TIME | i, pmu_battquery_sysctl,
488 "I", "Time Remaining (minutes)");
489 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
490 "life", CTLTYPE_INT | CTLFLAG_RD, sc,
491 PMU_BATSYSCTL_LIFE | i, pmu_battquery_sysctl,
492 "I", "Capacity remaining (percent)");
497 * Set up LED interface
500 sc->sc_leddev = led_create(pmu_set_sleepled, sc, "sleepled");
506 clock_register(dev, 1000);
509 * Register power control handler
511 EVENTHANDLER_REGISTER(shutdown_final, pmu_shutdown, sc,
514 return (bus_generic_attach(dev));
518 pmu_detach(device_t dev)
520 struct pmu_softc *sc;
522 sc = device_get_softc(dev);
524 if (sc->sc_leddev != NULL)
525 led_destroy(sc->sc_leddev);
527 bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
528 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irqrid, sc->sc_irq);
529 bus_release_resource(dev, SYS_RES_MEMORY, sc->sc_memrid, sc->sc_memr);
530 mtx_destroy(&sc->sc_mutex);
532 return (bus_generic_detach(dev));
536 pmu_read_reg(struct pmu_softc *sc, u_int offset)
538 return (bus_read_1(sc->sc_memr, offset));
542 pmu_write_reg(struct pmu_softc *sc, u_int offset, uint8_t value)
544 bus_write_1(sc->sc_memr, offset, value);
548 pmu_send_byte(struct pmu_softc *sc, uint8_t data)
552 pmu_write_reg(sc, vSR, data);
554 /* wait for intr to come up */
555 /* XXX should add a timeout and bail if it expires */
556 do {} while (pmu_intr_state(sc) == 0);
558 do {} while (pmu_intr_state(sc));
564 pmu_read_byte(struct pmu_softc *sc, uint8_t *data)
566 volatile uint8_t scratch;
568 scratch = pmu_read_reg(sc, vSR);
570 /* wait for intr to come up */
571 do {} while (pmu_intr_state(sc) == 0);
573 do {} while (pmu_intr_state(sc));
574 *data = pmu_read_reg(sc, vSR);
579 pmu_intr_state(struct pmu_softc *sc)
581 return ((pmu_read_reg(sc, vBufB) & vPB3) == 0);
585 pmu_send(void *cookie, int cmd, int length, uint8_t *in_msg, int rlen,
588 struct pmu_softc *sc = cookie;
590 uint8_t out_len, intreg;
592 intreg = pmu_read_reg(sc, vIER);
594 pmu_write_reg(sc, vIER, intreg);
597 do {} while (pmu_intr_state(sc));
600 pmu_send_byte(sc, cmd);
602 /* send length if necessary */
603 if (pm_send_cmd_type[cmd] < 0) {
604 pmu_send_byte(sc, length);
607 for (i = 0; i < length; i++) {
608 pmu_send_byte(sc, in_msg[i]);
611 /* see if there's data to read */
612 rcv_len = pm_receive_cmd_type[cmd];
618 pmu_read_byte(sc, out_msg);
623 pmu_read_byte(sc, &out_len);
624 rcv_len = out_len + 1;
626 for (i = 1; i < min(rcv_len, rlen); i++)
627 pmu_read_byte(sc, &out_msg[i]);
630 pmu_write_reg(sc, vIER, (intreg == 0) ? 0 : 0x90);
637 pmu_poll(device_t dev)
644 pmu_in(struct pmu_softc *sc)
648 reg = pmu_read_reg(sc, vACR);
651 pmu_write_reg(sc, vACR, reg);
655 pmu_out(struct pmu_softc *sc)
659 reg = pmu_read_reg(sc, vACR);
662 pmu_write_reg(sc, vACR, reg);
666 pmu_ack_off(struct pmu_softc *sc)
670 reg = pmu_read_reg(sc, vBufB);
672 pmu_write_reg(sc, vBufB, reg);
676 pmu_ack_on(struct pmu_softc *sc)
680 reg = pmu_read_reg(sc, vBufB);
682 pmu_write_reg(sc, vBufB, reg);
689 struct pmu_softc *sc;
696 sc = device_get_softc(dev);
698 mtx_lock(&sc->sc_mutex);
700 pmu_write_reg(sc, vIFR, 0x90); /* Clear 'em */
701 len = pmu_send(sc, PMU_INT_ACK, 0, NULL, 16, resp);
703 mtx_unlock(&sc->sc_mutex);
705 if ((len < 1) || (resp[1] == 0)) {
709 if (resp[1] & PMU_INT_ADB) {
711 * the PMU will turn off autopolling after each command that
712 * it did not issue, so we assume any but TALK R0 is ours and
713 * re-enable autopoll here whenever we receive an ACK for a
716 mtx_lock(&sc->sc_mutex);
718 if ((resp[2] & 0x0f) != (ADB_COMMAND_TALK << 2)) {
719 if (sc->sc_autopoll) {
720 uint8_t cmd[] = {0, PMU_SET_POLL_MASK,
721 (sc->sc_autopoll >> 8) & 0xff,
722 sc->sc_autopoll & 0xff};
724 pmu_send(sc, PMU_ADB_CMD, 4, cmd, 16, junk);
728 mtx_unlock(&sc->sc_mutex);
730 adb_receive_raw_packet(sc->adb_bus,resp[1],resp[2],
733 if (resp[1] & PMU_INT_ENVIRONMENT) {
734 /* if the lid was just closed, notify devd. */
735 if ((resp[2] & PMU_ENV_LID_CLOSED) && (!sc->lid_closed)) {
737 devctl_notify("PMU", "lid", "close", NULL);
739 else if (!(resp[2] & PMU_ENV_LID_CLOSED) && (sc->lid_closed)) {
740 /* if the lid was just opened, notify devd. */
742 devctl_notify("PMU", "lid", "open", NULL);
744 if (resp[2] & PMU_ENV_POWER)
745 devctl_notify("PMU", "Button", "pressed", NULL);
750 pmu_adb_send(device_t dev, u_char command_byte, int len, u_char *data,
753 struct pmu_softc *sc = device_get_softc(dev);
755 uint8_t packet[16], resp[16];
757 /* construct an ADB command packet and send it */
759 packet[0] = command_byte;
763 for (i = 0; i < len; i++)
764 packet[i + 3] = data[i];
766 mtx_lock(&sc->sc_mutex);
767 replen = pmu_send(sc, PMU_ADB_CMD, len + 3, packet, 16, resp);
768 mtx_unlock(&sc->sc_mutex);
777 pmu_adb_autopoll(device_t dev, uint16_t mask)
779 struct pmu_softc *sc = device_get_softc(dev);
781 /* magical incantation to re-enable autopolling */
782 uint8_t cmd[] = {0, PMU_SET_POLL_MASK, (mask >> 8) & 0xff, mask & 0xff};
785 mtx_lock(&sc->sc_mutex);
787 if (sc->sc_autopoll == mask) {
788 mtx_unlock(&sc->sc_mutex);
792 sc->sc_autopoll = mask & 0xffff;
795 pmu_send(sc, PMU_ADB_CMD, 4, cmd, 16, resp);
797 pmu_send(sc, PMU_ADB_POLL_OFF, 0, NULL, 16, resp);
799 mtx_unlock(&sc->sc_mutex);
805 pmu_shutdown(void *xsc, int howto)
807 struct pmu_softc *sc = xsc;
808 uint8_t cmd[] = {'M', 'A', 'T', 'T'};
811 pmu_send(sc, PMU_POWER_OFF, 4, cmd, 0, NULL);
813 pmu_send(sc, PMU_RESET_CPU, 0, NULL, 0, NULL);
819 pmu_set_sleepled(void *xsc, int onoff)
821 struct pmu_softc *sc = xsc;
822 uint8_t cmd[] = {4, 0, 0};
826 mtx_lock(&sc->sc_mutex);
827 pmu_send(sc, PMU_SET_SLEEPLED, 3, cmd, 0, NULL);
828 mtx_unlock(&sc->sc_mutex);
832 pmu_server_mode(SYSCTL_HANDLER_ARGS)
834 struct pmu_softc *sc = arg1;
836 u_int server_mode = 0;
837 uint8_t getcmd[] = {PMU_PWR_GET_POWERUP_EVENTS};
838 uint8_t setcmd[] = {0, 0, PMU_PWR_WAKEUP_AC_INSERT};
842 mtx_lock(&sc->sc_mutex);
843 len = pmu_send(sc, PMU_POWER_EVENTS, 1, getcmd, 3, resp);
844 mtx_unlock(&sc->sc_mutex);
847 server_mode = (resp[2] & PMU_PWR_WAKEUP_AC_INSERT) ? 1 : 0;
849 error = sysctl_handle_int(oidp, &server_mode, 0, req);
854 if (error || !req->newptr)
857 if (server_mode == 1)
858 setcmd[0] = PMU_PWR_SET_POWERUP_EVENTS;
859 else if (server_mode == 0)
860 setcmd[0] = PMU_PWR_CLR_POWERUP_EVENTS;
866 mtx_lock(&sc->sc_mutex);
867 pmu_send(sc, PMU_POWER_EVENTS, 3, setcmd, 2, resp);
868 mtx_unlock(&sc->sc_mutex);
874 pmu_query_battery(struct pmu_softc *sc, int batt, struct pmu_battstate *info)
882 mtx_lock(&sc->sc_mutex);
883 len = pmu_send(sc, PMU_SMART_BATTERY_STATE, 1, ®, 16, resp);
884 mtx_unlock(&sc->sc_mutex);
889 /* All PMU battery info replies share a common header:
890 * Byte 1 Payload Format
891 * Byte 2 Battery Flags
894 info->state = resp[2];
900 * Formats 3 and 4 appear to be the same:
907 info->charge = resp[3];
908 info->maxcharge = resp[4];
909 /* Current can be positive or negative */
910 info->current = (int8_t)resp[5];
911 info->voltage = resp[6];
915 * Formats 5 is a wider version of formats 3 and 4
917 * Byte 5-6 Max Charge
922 info->charge = (resp[3] << 8) | resp[4];
923 info->maxcharge = (resp[5] << 8) | resp[6];
924 /* Current can be positive or negative */
925 info->current = (int16_t)((resp[7] << 8) | resp[8]);
926 info->voltage = (resp[9] << 8) | resp[10];
929 device_printf(sc->sc_dev, "Unknown battery info format (%d)!\n",
938 pmu_battery_notify(struct pmu_battstate *batt, struct pmu_battstate *old)
941 int new_acline, old_acline;
943 new_acline = (batt->state & PMU_PWR_AC_PRESENT) ? 1 : 0;
944 old_acline = (old->state & PMU_PWR_AC_PRESENT) ? 1 : 0;
946 if (new_acline != old_acline) {
947 snprintf(notify_buf, sizeof(notify_buf),
948 "notify=0x%02x", new_acline);
949 devctl_notify("PMU", "POWER", "ACLINE", notify_buf);
956 struct pmu_softc *sc;
957 struct pmu_battstate batt;
958 struct pmu_battstate cur_batt;
961 sc = device_get_softc(pmu);
963 bzero(&cur_batt, sizeof(cur_batt));
965 kproc_suspend_check(curproc);
966 error = pmu_query_battery(sc, 0, &batt);
967 pmu_battery_notify(&batt, &cur_batt);
969 pause("pmu_batt", hz);
974 pmu_battmon(SYSCTL_HANDLER_ARGS)
976 struct pmu_softc *sc;
980 result = pmu_battmon_enabled;
982 error = sysctl_handle_int(oidp, &result, 0, req);
984 if (error || !req->newptr)
987 if (!result && pmu_battmon_enabled)
988 error = kproc_suspend(pmubattproc, hz);
989 else if (result && pmu_battmon_enabled == 0)
990 error = kproc_resume(pmubattproc);
991 pmu_battmon_enabled = (result != 0);
997 pmu_acline_state(SYSCTL_HANDLER_ARGS)
999 struct pmu_softc *sc;
1000 struct pmu_battstate batt;
1005 /* The PMU treats the AC line status as a property of the battery */
1006 error = pmu_query_battery(sc, 0, &batt);
1011 result = (batt.state & PMU_PWR_AC_PRESENT) ? 1 : 0;
1012 error = sysctl_handle_int(oidp, &result, 0, req);
1018 pmu_battquery_sysctl(SYSCTL_HANDLER_ARGS)
1020 struct pmu_softc *sc;
1021 struct pmu_battstate batt;
1026 error = pmu_query_battery(sc, arg2 & 0x00ff, &batt);
1031 switch (arg2 & 0xff00) {
1032 case PMU_BATSYSCTL_PRESENT:
1033 result = (batt.state & PMU_PWR_BATT_PRESENT) ? 1 : 0;
1035 case PMU_BATSYSCTL_CHARGING:
1036 result = (batt.state & PMU_PWR_BATT_CHARGING) ? 1 : 0;
1038 case PMU_BATSYSCTL_CHARGE:
1039 result = batt.charge;
1041 case PMU_BATSYSCTL_MAXCHARGE:
1042 result = batt.maxcharge;
1044 case PMU_BATSYSCTL_CURRENT:
1045 result = batt.current;
1047 case PMU_BATSYSCTL_VOLTAGE:
1048 result = batt.voltage;
1050 case PMU_BATSYSCTL_TIME:
1051 /* Time remaining until full charge/discharge, in minutes */
1053 if (batt.current >= 0)
1054 result = (batt.maxcharge - batt.charge) /* mAh */ * 60
1055 / batt.current /* mA */;
1057 result = (batt.charge /* mAh */ * 60)
1058 / (-batt.current /* mA */);
1060 case PMU_BATSYSCTL_LIFE:
1061 /* Battery charge fraction, in percent */
1062 result = (batt.charge * 100) / batt.maxcharge;
1065 /* This should never happen */
1069 error = sysctl_handle_int(oidp, &result, 0, req);
1074 #define DIFF19041970 2082844800
1077 pmu_gettime(device_t dev, struct timespec *ts)
1079 struct pmu_softc *sc = device_get_softc(dev);
1083 mtx_lock(&sc->sc_mutex);
1084 pmu_send(sc, PMU_READ_RTC, 0, NULL, 16, resp);
1085 mtx_unlock(&sc->sc_mutex);
1087 memcpy(&sec, &resp[1], 4);
1088 ts->tv_sec = sec - DIFF19041970;
1095 pmu_settime(device_t dev, struct timespec *ts)
1097 struct pmu_softc *sc = device_get_softc(dev);
1100 sec = ts->tv_sec + DIFF19041970;
1102 mtx_lock(&sc->sc_mutex);
1103 pmu_send(sc, PMU_SET_RTC, sizeof(sec), (uint8_t *)&sec, 0, NULL);
1104 mtx_unlock(&sc->sc_mutex);
1110 pmu_set_speed(int low_speed)
1112 struct pmu_softc *sc;
1113 uint8_t sleepcmd[] = {'W', 'O', 'O', 'F', 0};
1116 sc = device_get_softc(pmu);
1117 pmu_write_reg(sc, vIER, 0x10);
1123 sleepcmd[4] = low_speed;
1124 pmu_send(sc, PMU_CPU_SPEED, 5, sleepcmd, 16, resp);
1125 unin_chip_sleep(NULL, 1);
1127 unin_chip_wake(NULL);
1129 mtdec(1); /* Force a decrementer exception */
1131 pmu_write_reg(sc, vIER, 0x90);