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, 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,
446 "monitor_batteries", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
447 pmu_battmon, "I", "Post battery events to devd");
450 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
451 "acline", CTLTYPE_INT | CTLFLAG_RD, sc, 0,
452 pmu_acline_state, "I", "AC Line Status");
454 battroot = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
455 "batteries", CTLFLAG_RD, 0, "Battery Information");
457 for (i = 0; i < sc->sc_batteries; i++) {
458 battnum[0] = i + '0';
461 oid = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(battroot),
462 OID_AUTO, battnum, CTLFLAG_RD, 0,
463 "Battery Information");
465 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
466 "present", CTLTYPE_INT | CTLFLAG_RD, sc,
467 PMU_BATSYSCTL_PRESENT | i, pmu_battquery_sysctl,
468 "I", "Battery present");
469 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
470 "charging", CTLTYPE_INT | CTLFLAG_RD, sc,
471 PMU_BATSYSCTL_CHARGING | i, pmu_battquery_sysctl,
472 "I", "Battery charging");
473 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
474 "charge", CTLTYPE_INT | CTLFLAG_RD, sc,
475 PMU_BATSYSCTL_CHARGE | i, pmu_battquery_sysctl,
476 "I", "Battery charge (mAh)");
477 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
478 "maxcharge", CTLTYPE_INT | CTLFLAG_RD, sc,
479 PMU_BATSYSCTL_MAXCHARGE | i, pmu_battquery_sysctl,
480 "I", "Maximum battery capacity (mAh)");
481 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
482 "rate", CTLTYPE_INT | CTLFLAG_RD, sc,
483 PMU_BATSYSCTL_CURRENT | i, pmu_battquery_sysctl,
484 "I", "Battery discharge rate (mA)");
485 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
486 "voltage", CTLTYPE_INT | CTLFLAG_RD, sc,
487 PMU_BATSYSCTL_VOLTAGE | i, pmu_battquery_sysctl,
488 "I", "Battery voltage (mV)");
490 /* Knobs for mental compatibility with ACPI */
492 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
493 "time", CTLTYPE_INT | CTLFLAG_RD, sc,
494 PMU_BATSYSCTL_TIME | i, pmu_battquery_sysctl,
495 "I", "Time Remaining (minutes)");
496 SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO,
497 "life", CTLTYPE_INT | CTLFLAG_RD, sc,
498 PMU_BATSYSCTL_LIFE | i, pmu_battquery_sysctl,
499 "I", "Capacity remaining (percent)");
504 * Set up LED interface
507 sc->sc_leddev = led_create(pmu_set_sleepled, sc, "sleepled");
513 clock_register(dev, 1000);
516 * Register power control handler
518 EVENTHANDLER_REGISTER(shutdown_final, pmu_shutdown, sc,
521 return (bus_generic_attach(dev));
525 pmu_detach(device_t dev)
527 struct pmu_softc *sc;
529 sc = device_get_softc(dev);
531 if (sc->sc_leddev != NULL)
532 led_destroy(sc->sc_leddev);
534 bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
535 bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irqrid, sc->sc_irq);
536 bus_release_resource(dev, SYS_RES_MEMORY, sc->sc_memrid, sc->sc_memr);
537 mtx_destroy(&sc->sc_mutex);
539 return (bus_generic_detach(dev));
543 pmu_read_reg(struct pmu_softc *sc, u_int offset)
545 return (bus_read_1(sc->sc_memr, offset));
549 pmu_write_reg(struct pmu_softc *sc, u_int offset, uint8_t value)
551 bus_write_1(sc->sc_memr, offset, value);
555 pmu_send_byte(struct pmu_softc *sc, uint8_t data)
559 pmu_write_reg(sc, vSR, data);
561 /* wait for intr to come up */
562 /* XXX should add a timeout and bail if it expires */
563 do {} while (pmu_intr_state(sc) == 0);
565 do {} while (pmu_intr_state(sc));
571 pmu_read_byte(struct pmu_softc *sc, uint8_t *data)
573 volatile uint8_t scratch;
575 scratch = pmu_read_reg(sc, vSR);
577 /* wait for intr to come up */
578 do {} while (pmu_intr_state(sc) == 0);
580 do {} while (pmu_intr_state(sc));
581 *data = pmu_read_reg(sc, vSR);
586 pmu_intr_state(struct pmu_softc *sc)
588 return ((pmu_read_reg(sc, vBufB) & vPB3) == 0);
592 pmu_send(void *cookie, int cmd, int length, uint8_t *in_msg, int rlen,
595 struct pmu_softc *sc = cookie;
597 uint8_t out_len, intreg;
599 intreg = pmu_read_reg(sc, vIER);
601 pmu_write_reg(sc, vIER, intreg);
604 do {} while (pmu_intr_state(sc));
607 pmu_send_byte(sc, cmd);
609 /* send length if necessary */
610 if (pm_send_cmd_type[cmd] < 0) {
611 pmu_send_byte(sc, length);
614 for (i = 0; i < length; i++) {
615 pmu_send_byte(sc, in_msg[i]);
618 /* see if there's data to read */
619 rcv_len = pm_receive_cmd_type[cmd];
625 pmu_read_byte(sc, out_msg);
630 pmu_read_byte(sc, &out_len);
631 rcv_len = out_len + 1;
633 for (i = 1; i < min(rcv_len, rlen); i++)
634 pmu_read_byte(sc, &out_msg[i]);
637 pmu_write_reg(sc, vIER, (intreg == 0) ? 0 : 0x90);
644 pmu_poll(device_t dev)
651 pmu_in(struct pmu_softc *sc)
655 reg = pmu_read_reg(sc, vACR);
658 pmu_write_reg(sc, vACR, reg);
662 pmu_out(struct pmu_softc *sc)
666 reg = pmu_read_reg(sc, vACR);
669 pmu_write_reg(sc, vACR, reg);
673 pmu_ack_off(struct pmu_softc *sc)
677 reg = pmu_read_reg(sc, vBufB);
679 pmu_write_reg(sc, vBufB, reg);
683 pmu_ack_on(struct pmu_softc *sc)
687 reg = pmu_read_reg(sc, vBufB);
689 pmu_write_reg(sc, vBufB, reg);
696 struct pmu_softc *sc;
703 sc = device_get_softc(dev);
705 mtx_lock(&sc->sc_mutex);
707 pmu_write_reg(sc, vIFR, 0x90); /* Clear 'em */
708 len = pmu_send(sc, PMU_INT_ACK, 0, NULL, 16, resp);
710 mtx_unlock(&sc->sc_mutex);
712 if ((len < 1) || (resp[1] == 0)) {
716 if (resp[1] & PMU_INT_ADB) {
718 * the PMU will turn off autopolling after each command that
719 * it did not issue, so we assume any but TALK R0 is ours and
720 * re-enable autopoll here whenever we receive an ACK for a
723 mtx_lock(&sc->sc_mutex);
725 if ((resp[2] & 0x0f) != (ADB_COMMAND_TALK << 2)) {
726 if (sc->sc_autopoll) {
727 uint8_t cmd[] = {0, PMU_SET_POLL_MASK,
728 (sc->sc_autopoll >> 8) & 0xff,
729 sc->sc_autopoll & 0xff};
731 pmu_send(sc, PMU_ADB_CMD, 4, cmd, 16, junk);
735 mtx_unlock(&sc->sc_mutex);
737 adb_receive_raw_packet(sc->adb_bus,resp[1],resp[2],
740 if (resp[1] & PMU_INT_ENVIRONMENT) {
741 /* if the lid was just closed, notify devd. */
742 if ((resp[2] & PMU_ENV_LID_CLOSED) && (!sc->lid_closed)) {
744 devctl_notify("PMU", "lid", "close", NULL);
746 else if (!(resp[2] & PMU_ENV_LID_CLOSED) && (sc->lid_closed)) {
747 /* if the lid was just opened, notify devd. */
749 devctl_notify("PMU", "lid", "open", NULL);
751 if (resp[2] & PMU_ENV_POWER)
752 devctl_notify("PMU", "Button", "pressed", NULL);
757 pmu_adb_send(device_t dev, u_char command_byte, int len, u_char *data,
760 struct pmu_softc *sc = device_get_softc(dev);
762 uint8_t packet[16], resp[16];
764 /* construct an ADB command packet and send it */
766 packet[0] = command_byte;
770 for (i = 0; i < len; i++)
771 packet[i + 3] = data[i];
773 mtx_lock(&sc->sc_mutex);
774 replen = pmu_send(sc, PMU_ADB_CMD, len + 3, packet, 16, resp);
775 mtx_unlock(&sc->sc_mutex);
784 pmu_adb_autopoll(device_t dev, uint16_t mask)
786 struct pmu_softc *sc = device_get_softc(dev);
788 /* magical incantation to re-enable autopolling */
789 uint8_t cmd[] = {0, PMU_SET_POLL_MASK, (mask >> 8) & 0xff, mask & 0xff};
792 mtx_lock(&sc->sc_mutex);
794 if (sc->sc_autopoll == mask) {
795 mtx_unlock(&sc->sc_mutex);
799 sc->sc_autopoll = mask & 0xffff;
802 pmu_send(sc, PMU_ADB_CMD, 4, cmd, 16, resp);
804 pmu_send(sc, PMU_ADB_POLL_OFF, 0, NULL, 16, resp);
806 mtx_unlock(&sc->sc_mutex);
812 pmu_shutdown(void *xsc, int howto)
814 struct pmu_softc *sc = xsc;
815 uint8_t cmd[] = {'M', 'A', 'T', 'T'};
818 pmu_send(sc, PMU_POWER_OFF, 4, cmd, 0, NULL);
820 pmu_send(sc, PMU_RESET_CPU, 0, NULL, 0, NULL);
826 pmu_set_sleepled(void *xsc, int onoff)
828 struct pmu_softc *sc = xsc;
829 uint8_t cmd[] = {4, 0, 0};
833 mtx_lock(&sc->sc_mutex);
834 pmu_send(sc, PMU_SET_SLEEPLED, 3, cmd, 0, NULL);
835 mtx_unlock(&sc->sc_mutex);
839 pmu_server_mode(SYSCTL_HANDLER_ARGS)
841 struct pmu_softc *sc = arg1;
843 u_int server_mode = 0;
844 uint8_t getcmd[] = {PMU_PWR_GET_POWERUP_EVENTS};
845 uint8_t setcmd[] = {0, 0, PMU_PWR_WAKEUP_AC_INSERT};
849 mtx_lock(&sc->sc_mutex);
850 len = pmu_send(sc, PMU_POWER_EVENTS, 1, getcmd, 3, resp);
851 mtx_unlock(&sc->sc_mutex);
854 server_mode = (resp[2] & PMU_PWR_WAKEUP_AC_INSERT) ? 1 : 0;
856 error = sysctl_handle_int(oidp, &server_mode, 0, req);
861 if (error || !req->newptr)
864 if (server_mode == 1)
865 setcmd[0] = PMU_PWR_SET_POWERUP_EVENTS;
866 else if (server_mode == 0)
867 setcmd[0] = PMU_PWR_CLR_POWERUP_EVENTS;
873 mtx_lock(&sc->sc_mutex);
874 pmu_send(sc, PMU_POWER_EVENTS, 3, setcmd, 2, resp);
875 mtx_unlock(&sc->sc_mutex);
881 pmu_query_battery(struct pmu_softc *sc, int batt, struct pmu_battstate *info)
889 mtx_lock(&sc->sc_mutex);
890 len = pmu_send(sc, PMU_SMART_BATTERY_STATE, 1, ®, 16, resp);
891 mtx_unlock(&sc->sc_mutex);
896 /* All PMU battery info replies share a common header:
897 * Byte 1 Payload Format
898 * Byte 2 Battery Flags
901 info->state = resp[2];
907 * Formats 3 and 4 appear to be the same:
914 info->charge = resp[3];
915 info->maxcharge = resp[4];
916 /* Current can be positive or negative */
917 info->current = (int8_t)resp[5];
918 info->voltage = resp[6];
922 * Formats 5 is a wider version of formats 3 and 4
924 * Byte 5-6 Max Charge
929 info->charge = (resp[3] << 8) | resp[4];
930 info->maxcharge = (resp[5] << 8) | resp[6];
931 /* Current can be positive or negative */
932 info->current = (int16_t)((resp[7] << 8) | resp[8]);
933 info->voltage = (resp[9] << 8) | resp[10];
936 device_printf(sc->sc_dev, "Unknown battery info format (%d)!\n",
945 pmu_battery_notify(struct pmu_battstate *batt, struct pmu_battstate *old)
948 int new_acline, old_acline;
950 new_acline = (batt->state & PMU_PWR_AC_PRESENT) ? 1 : 0;
951 old_acline = (old->state & PMU_PWR_AC_PRESENT) ? 1 : 0;
953 if (new_acline != old_acline) {
954 snprintf(notify_buf, sizeof(notify_buf),
955 "notify=0x%02x", new_acline);
956 devctl_notify("PMU", "POWER", "ACLINE", notify_buf);
963 struct pmu_softc *sc;
964 struct pmu_battstate batt;
965 struct pmu_battstate cur_batt;
968 sc = device_get_softc(pmu);
970 bzero(&cur_batt, sizeof(cur_batt));
972 kproc_suspend_check(curproc);
973 error = pmu_query_battery(sc, 0, &batt);
974 pmu_battery_notify(&batt, &cur_batt);
976 pause("pmu_batt", hz);
981 pmu_battmon(SYSCTL_HANDLER_ARGS)
983 struct pmu_softc *sc;
987 result = pmu_battmon_enabled;
989 error = sysctl_handle_int(oidp, &result, 0, req);
991 if (error || !req->newptr)
994 if (!result && pmu_battmon_enabled)
995 error = kproc_suspend(pmubattproc, hz);
996 else if (result && pmu_battmon_enabled == 0)
997 error = kproc_resume(pmubattproc);
998 pmu_battmon_enabled = (result != 0);
1004 pmu_acline_state(SYSCTL_HANDLER_ARGS)
1006 struct pmu_softc *sc;
1007 struct pmu_battstate batt;
1012 /* The PMU treats the AC line status as a property of the battery */
1013 error = pmu_query_battery(sc, 0, &batt);
1018 result = (batt.state & PMU_PWR_AC_PRESENT) ? 1 : 0;
1019 error = sysctl_handle_int(oidp, &result, 0, req);
1025 pmu_battquery_sysctl(SYSCTL_HANDLER_ARGS)
1027 struct pmu_softc *sc;
1028 struct pmu_battstate batt;
1033 error = pmu_query_battery(sc, arg2 & 0x00ff, &batt);
1038 switch (arg2 & 0xff00) {
1039 case PMU_BATSYSCTL_PRESENT:
1040 result = (batt.state & PMU_PWR_BATT_PRESENT) ? 1 : 0;
1042 case PMU_BATSYSCTL_CHARGING:
1043 result = (batt.state & PMU_PWR_BATT_CHARGING) ? 1 : 0;
1045 case PMU_BATSYSCTL_CHARGE:
1046 result = batt.charge;
1048 case PMU_BATSYSCTL_MAXCHARGE:
1049 result = batt.maxcharge;
1051 case PMU_BATSYSCTL_CURRENT:
1052 result = batt.current;
1054 case PMU_BATSYSCTL_VOLTAGE:
1055 result = batt.voltage;
1057 case PMU_BATSYSCTL_TIME:
1058 /* Time remaining until full charge/discharge, in minutes */
1060 if (batt.current >= 0)
1061 result = (batt.maxcharge - batt.charge) /* mAh */ * 60
1062 / batt.current /* mA */;
1064 result = (batt.charge /* mAh */ * 60)
1065 / (-batt.current /* mA */);
1067 case PMU_BATSYSCTL_LIFE:
1068 /* Battery charge fraction, in percent */
1069 result = (batt.charge * 100) / batt.maxcharge;
1072 /* This should never happen */
1076 error = sysctl_handle_int(oidp, &result, 0, req);
1081 #define DIFF19041970 2082844800
1084 pmu_gettime(device_t dev, struct timespec *ts)
1086 struct pmu_softc *sc = device_get_softc(dev);
1090 mtx_lock(&sc->sc_mutex);
1091 pmu_send(sc, PMU_READ_RTC, 0, NULL, 16, resp);
1092 mtx_unlock(&sc->sc_mutex);
1094 memcpy(&sec, &resp[1], 4);
1095 ts->tv_sec = sec - DIFF19041970;
1102 pmu_settime(device_t dev, struct timespec *ts)
1104 struct pmu_softc *sc = device_get_softc(dev);
1107 sec = ts->tv_sec + DIFF19041970;
1109 mtx_lock(&sc->sc_mutex);
1110 pmu_send(sc, PMU_SET_RTC, sizeof(sec), (uint8_t *)&sec, 0, NULL);
1111 mtx_unlock(&sc->sc_mutex);
1117 pmu_set_speed(int low_speed)
1119 struct pmu_softc *sc;
1120 uint8_t sleepcmd[] = {'W', 'O', 'O', 'F', 0};
1123 sc = device_get_softc(pmu);
1124 pmu_write_reg(sc, vIER, 0x10);
1130 sleepcmd[4] = low_speed;
1131 pmu_send(sc, PMU_CPU_SPEED, 5, sleepcmd, 16, resp);
1132 unin_chip_sleep(NULL, 1);
1134 unin_chip_wake(NULL);
1136 mtdec(1); /* Force a decrementer exception */
1138 pmu_write_reg(sc, vIER, 0x90);