pmu.c revision 273009
1184299Snwhitehorn/*- 2184299Snwhitehorn * Copyright (c) 2006 Michael Lorenz 3184299Snwhitehorn * Copyright 2008 by Nathan Whitehorn 4184299Snwhitehorn * All rights reserved. 5184299Snwhitehorn * 6184299Snwhitehorn * Redistribution and use in source and binary forms, with or without 7184299Snwhitehorn * modification, are permitted provided that the following conditions 8184299Snwhitehorn * are met: 9184299Snwhitehorn * 1. Redistributions of source code must retain the above copyright 10184299Snwhitehorn * notice, this list of conditions and the following disclaimer. 11184299Snwhitehorn * 2. Redistributions in binary form must reproduce the above copyright 12184299Snwhitehorn * notice, this list of conditions and the following disclaimer in the 13184299Snwhitehorn * documentation and/or other materials provided with the distribution. 14184299Snwhitehorn * 15184299Snwhitehorn * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16184299Snwhitehorn * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17184299Snwhitehorn * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18184299Snwhitehorn * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19184299Snwhitehorn * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20184299Snwhitehorn * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21184299Snwhitehorn * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22184299Snwhitehorn * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23184299Snwhitehorn * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24184299Snwhitehorn * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25184299Snwhitehorn * SUCH DAMAGE. 26184299Snwhitehorn * 27184299Snwhitehorn */ 28184299Snwhitehorn 29184299Snwhitehorn#include <sys/cdefs.h> 30184299Snwhitehorn__FBSDID("$FreeBSD: head/sys/powerpc/powermac/pmu.c 273009 2014-10-12 19:12:48Z jhibbits $"); 31184299Snwhitehorn 32184299Snwhitehorn#include <sys/param.h> 33184299Snwhitehorn#include <sys/systm.h> 34184299Snwhitehorn#include <sys/module.h> 35184299Snwhitehorn#include <sys/bus.h> 36184299Snwhitehorn#include <sys/conf.h> 37184299Snwhitehorn#include <sys/kernel.h> 38273009Sjhibbits#include <sys/kthread.h> 39205506Snwhitehorn#include <sys/clock.h> 40259284Sjhibbits#include <sys/proc.h> 41212054Snwhitehorn#include <sys/reboot.h> 42185727Snwhitehorn#include <sys/sysctl.h> 43184299Snwhitehorn 44184299Snwhitehorn#include <dev/ofw/ofw_bus.h> 45184299Snwhitehorn#include <dev/ofw/openfirm.h> 46185782Snwhitehorn#include <dev/led/led.h> 47184299Snwhitehorn 48259284Sjhibbits#include <machine/_inttypes.h> 49184299Snwhitehorn#include <machine/bus.h> 50259284Sjhibbits#include <machine/cpu.h> 51259284Sjhibbits#include <machine/hid.h> 52184299Snwhitehorn#include <machine/intr_machdep.h> 53184299Snwhitehorn#include <machine/md_var.h> 54259284Sjhibbits#include <machine/pcb.h> 55184299Snwhitehorn#include <machine/pio.h> 56184299Snwhitehorn#include <machine/resource.h> 57184299Snwhitehorn 58184299Snwhitehorn#include <vm/vm.h> 59184299Snwhitehorn#include <vm/pmap.h> 60184299Snwhitehorn 61184299Snwhitehorn#include <sys/rman.h> 62184299Snwhitehorn 63184299Snwhitehorn#include <dev/adb/adb.h> 64184299Snwhitehorn 65205506Snwhitehorn#include "clock_if.h" 66184299Snwhitehorn#include "pmuvar.h" 67184299Snwhitehorn#include "viareg.h" 68259284Sjhibbits#include "uninorthvar.h" /* For unin_chip_sleep()/unin_chip_wake() */ 69184299Snwhitehorn 70259284Sjhibbits#define PMU_DEFAULTS PMU_INT_TICK | PMU_INT_ADB | \ 71259284Sjhibbits PMU_INT_PCEJECT | PMU_INT_SNDBRT | \ 72259284Sjhibbits PMU_INT_BATTERY | PMU_INT_ENVIRONMENT 73259284Sjhibbits 74184299Snwhitehorn/* 75205506Snwhitehorn * Bus interface 76184299Snwhitehorn */ 77184299Snwhitehornstatic int pmu_probe(device_t); 78184299Snwhitehornstatic int pmu_attach(device_t); 79184299Snwhitehornstatic int pmu_detach(device_t); 80184299Snwhitehorn 81205506Snwhitehorn/* 82205506Snwhitehorn * Clock interface 83205506Snwhitehorn */ 84205506Snwhitehornstatic int pmu_gettime(device_t dev, struct timespec *ts); 85205506Snwhitehornstatic int pmu_settime(device_t dev, struct timespec *ts); 86205506Snwhitehorn 87205506Snwhitehorn/* 88205506Snwhitehorn * ADB Interface 89205506Snwhitehorn */ 90205506Snwhitehorn 91185727Snwhitehornstatic u_int pmu_adb_send(device_t dev, u_char command_byte, int len, 92185754Snwhitehorn u_char *data, u_char poll); 93185727Snwhitehornstatic u_int pmu_adb_autopoll(device_t dev, uint16_t mask); 94194027Savgstatic u_int pmu_poll(device_t dev); 95185754Snwhitehorn 96212054Snwhitehorn/* 97212054Snwhitehorn * Power interface 98212054Snwhitehorn */ 99212054Snwhitehorn 100212054Snwhitehornstatic void pmu_shutdown(void *xsc, int howto); 101185782Snwhitehornstatic void pmu_set_sleepled(void *xsc, int onoff); 102185727Snwhitehornstatic int pmu_server_mode(SYSCTL_HANDLER_ARGS); 103193159Snwhitehornstatic int pmu_acline_state(SYSCTL_HANDLER_ARGS); 104185754Snwhitehornstatic int pmu_query_battery(struct pmu_softc *sc, int batt, 105185754Snwhitehorn struct pmu_battstate *info); 106185754Snwhitehornstatic int pmu_battquery_sysctl(SYSCTL_HANDLER_ARGS); 107184299Snwhitehorn 108185754Snwhitehorn/* 109185754Snwhitehorn * List of battery-related sysctls we might ask for 110185754Snwhitehorn */ 111185754Snwhitehorn 112185754Snwhitehornenum { 113185754Snwhitehorn PMU_BATSYSCTL_PRESENT = 1 << 8, 114185754Snwhitehorn PMU_BATSYSCTL_CHARGING = 2 << 8, 115185754Snwhitehorn PMU_BATSYSCTL_CHARGE = 3 << 8, 116185754Snwhitehorn PMU_BATSYSCTL_MAXCHARGE = 4 << 8, 117185754Snwhitehorn PMU_BATSYSCTL_CURRENT = 5 << 8, 118185754Snwhitehorn PMU_BATSYSCTL_VOLTAGE = 6 << 8, 119185754Snwhitehorn PMU_BATSYSCTL_TIME = 7 << 8, 120185754Snwhitehorn PMU_BATSYSCTL_LIFE = 8 << 8 121185754Snwhitehorn}; 122185754Snwhitehorn 123184299Snwhitehornstatic device_method_t pmu_methods[] = { 124184299Snwhitehorn /* Device interface */ 125184299Snwhitehorn DEVMETHOD(device_probe, pmu_probe), 126184299Snwhitehorn DEVMETHOD(device_attach, pmu_attach), 127184299Snwhitehorn DEVMETHOD(device_detach, pmu_detach), 128184299Snwhitehorn DEVMETHOD(device_shutdown, bus_generic_shutdown), 129184299Snwhitehorn 130184299Snwhitehorn /* ADB bus interface */ 131184299Snwhitehorn DEVMETHOD(adb_hb_send_raw_packet, pmu_adb_send), 132184299Snwhitehorn DEVMETHOD(adb_hb_controller_poll, pmu_poll), 133184299Snwhitehorn DEVMETHOD(adb_hb_set_autopoll_mask, pmu_adb_autopoll), 134184299Snwhitehorn 135205506Snwhitehorn /* Clock interface */ 136205506Snwhitehorn DEVMETHOD(clock_gettime, pmu_gettime), 137205506Snwhitehorn DEVMETHOD(clock_settime, pmu_settime), 138205506Snwhitehorn 139227843Smarius DEVMETHOD_END 140184299Snwhitehorn}; 141184299Snwhitehorn 142184299Snwhitehornstatic driver_t pmu_driver = { 143184299Snwhitehorn "pmu", 144184299Snwhitehorn pmu_methods, 145184299Snwhitehorn sizeof(struct pmu_softc), 146184299Snwhitehorn}; 147184299Snwhitehorn 148184299Snwhitehornstatic devclass_t pmu_devclass; 149184299Snwhitehorn 150184299SnwhitehornDRIVER_MODULE(pmu, macio, pmu_driver, pmu_devclass, 0, 0); 151184299SnwhitehornDRIVER_MODULE(adb, pmu, adb_driver, adb_devclass, 0, 0); 152184299Snwhitehorn 153184299Snwhitehornstatic int pmuextint_probe(device_t); 154184299Snwhitehornstatic int pmuextint_attach(device_t); 155184299Snwhitehorn 156184299Snwhitehornstatic device_method_t pmuextint_methods[] = { 157184299Snwhitehorn /* Device interface */ 158184299Snwhitehorn DEVMETHOD(device_probe, pmuextint_probe), 159184299Snwhitehorn DEVMETHOD(device_attach, pmuextint_attach), 160184299Snwhitehorn 161184299Snwhitehorn {0,0} 162184299Snwhitehorn}; 163184299Snwhitehorn 164184299Snwhitehornstatic driver_t pmuextint_driver = { 165184299Snwhitehorn "pmuextint", 166184299Snwhitehorn pmuextint_methods, 167184299Snwhitehorn 0 168184299Snwhitehorn}; 169184299Snwhitehorn 170184299Snwhitehornstatic devclass_t pmuextint_devclass; 171184299Snwhitehorn 172184299SnwhitehornDRIVER_MODULE(pmuextint, macgpio, pmuextint_driver, pmuextint_devclass, 0, 0); 173184299Snwhitehorn 174184299Snwhitehorn/* Make sure uhid is loaded, as it turns off some of the ADB emulation */ 175184299SnwhitehornMODULE_DEPEND(pmu, usb, 1, 1, 1); 176184299Snwhitehorn 177184299Snwhitehornstatic void pmu_intr(void *arg); 178184299Snwhitehornstatic void pmu_in(struct pmu_softc *sc); 179184299Snwhitehornstatic void pmu_out(struct pmu_softc *sc); 180184299Snwhitehornstatic void pmu_ack_on(struct pmu_softc *sc); 181184299Snwhitehornstatic void pmu_ack_off(struct pmu_softc *sc); 182184299Snwhitehornstatic int pmu_send(void *cookie, int cmd, int length, uint8_t *in_msg, 183184299Snwhitehorn int rlen, uint8_t *out_msg); 184184299Snwhitehornstatic uint8_t pmu_read_reg(struct pmu_softc *sc, u_int offset); 185184299Snwhitehornstatic void pmu_write_reg(struct pmu_softc *sc, u_int offset, uint8_t value); 186184299Snwhitehornstatic int pmu_intr_state(struct pmu_softc *); 187273009Sjhibbitsstatic void pmu_battquery_proc(void); 188273009Sjhibbitsstatic void pmu_battery_notify(struct pmu_battstate *batt, 189273009Sjhibbits struct pmu_battstate *old); 190184299Snwhitehorn 191184299Snwhitehorn/* these values shows that number of data returned after 'send' cmd is sent */ 192184299Snwhitehornstatic signed char pm_send_cmd_type[] = { 193184299Snwhitehorn -1, -1, -1, -1, -1, -1, -1, -1, 194184299Snwhitehorn -1, -1, -1, -1, -1, -1, -1, -1, 195184299Snwhitehorn 0x01, 0x01, -1, -1, -1, -1, -1, -1, 196184299Snwhitehorn 0x00, 0x00, -1, -1, -1, -1, -1, 0x00, 197184299Snwhitehorn -1, 0x00, 0x02, 0x01, 0x01, -1, -1, -1, 198184299Snwhitehorn 0x00, -1, -1, -1, -1, -1, -1, -1, 199184299Snwhitehorn 0x04, 0x14, -1, 0x03, -1, -1, -1, -1, 200184299Snwhitehorn 0x00, 0x00, 0x02, 0x02, -1, -1, -1, -1, 201184299Snwhitehorn 0x01, 0x01, -1, -1, -1, -1, -1, -1, 202184299Snwhitehorn 0x00, 0x00, -1, -1, 0x01, -1, -1, -1, 203184299Snwhitehorn 0x01, 0x00, 0x02, 0x02, -1, 0x01, 0x03, 0x01, 204184299Snwhitehorn 0x00, 0x01, 0x00, 0x00, 0x00, -1, -1, -1, 205184299Snwhitehorn 0x02, -1, -1, -1, -1, -1, -1, -1, 206184299Snwhitehorn 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, -1, -1, 207184299Snwhitehorn 0x01, 0x01, 0x01, -1, -1, -1, -1, -1, 208259284Sjhibbits 0x00, 0x00, -1, -1, -1, 0x05, 0x04, 0x04, 209184299Snwhitehorn 0x04, -1, 0x00, -1, -1, -1, -1, -1, 210184299Snwhitehorn 0x00, -1, -1, -1, -1, -1, -1, -1, 211184299Snwhitehorn 0x01, 0x02, -1, -1, -1, -1, -1, -1, 212184299Snwhitehorn 0x00, 0x00, -1, -1, -1, -1, -1, -1, 213184299Snwhitehorn 0x02, 0x02, 0x02, 0x04, -1, 0x00, -1, -1, 214184299Snwhitehorn 0x01, 0x01, 0x03, 0x02, -1, -1, -1, -1, 215184299Snwhitehorn -1, -1, -1, -1, -1, -1, -1, -1, 216184299Snwhitehorn -1, -1, -1, -1, -1, -1, -1, -1, 217184299Snwhitehorn -1, -1, -1, -1, -1, -1, -1, -1, 218184299Snwhitehorn -1, -1, -1, -1, -1, -1, -1, -1, 219184299Snwhitehorn 0x00, -1, -1, -1, -1, -1, -1, -1, 220184299Snwhitehorn 0x01, 0x01, -1, -1, 0x00, 0x00, -1, -1, 221184299Snwhitehorn -1, 0x04, 0x00, -1, -1, -1, -1, -1, 222184299Snwhitehorn 0x03, -1, 0x00, -1, 0x00, -1, -1, 0x00, 223184299Snwhitehorn -1, -1, -1, -1, -1, -1, -1, -1, 224184299Snwhitehorn -1, -1, -1, -1, -1, -1, -1, -1 225184299Snwhitehorn}; 226184299Snwhitehorn 227184299Snwhitehorn/* these values shows that number of data returned after 'receive' cmd is sent */ 228184299Snwhitehornstatic signed char pm_receive_cmd_type[] = { 229184299Snwhitehorn 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 230184299Snwhitehorn -1, -1, -1, -1, -1, -1, -1, -1, 231184299Snwhitehorn 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 232184299Snwhitehorn 0x02, 0x02, -1, -1, -1, -1, -1, 0x00, 233184299Snwhitehorn 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 234184299Snwhitehorn -1, -1, -1, -1, -1, -1, -1, -1, 235184299Snwhitehorn 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 236184299Snwhitehorn 0x05, 0x15, -1, 0x02, -1, -1, -1, -1, 237184299Snwhitehorn 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 238184299Snwhitehorn 0x02, 0x02, -1, -1, -1, -1, -1, -1, 239184299Snwhitehorn 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 240184299Snwhitehorn 0x02, 0x00, 0x03, 0x03, -1, -1, -1, -1, 241184299Snwhitehorn 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 242184299Snwhitehorn 0x04, 0x04, 0x03, 0x09, -1, -1, -1, -1, 243184299Snwhitehorn 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 244259284Sjhibbits -1, -1, -1, -1, -1, 0x01, 0x01, 0x01, 245184299Snwhitehorn 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 246184299Snwhitehorn 0x06, -1, -1, -1, -1, -1, -1, -1, 247184299Snwhitehorn 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 248184299Snwhitehorn 0x02, 0x02, -1, -1, -1, -1, -1, -1, 249184299Snwhitehorn 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 250184299Snwhitehorn 0x02, 0x00, 0x00, 0x00, -1, -1, -1, -1, 251184299Snwhitehorn 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 252184299Snwhitehorn -1, -1, -1, -1, -1, -1, -1, -1, 253184299Snwhitehorn 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 254184299Snwhitehorn -1, -1, -1, -1, -1, -1, -1, -1, 255184299Snwhitehorn 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 256184299Snwhitehorn 0x02, 0x02, -1, -1, 0x02, -1, -1, -1, 257184299Snwhitehorn 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 258184299Snwhitehorn -1, -1, 0x02, -1, -1, -1, -1, 0x00, 259184299Snwhitehorn 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 260184299Snwhitehorn -1, -1, -1, -1, -1, -1, -1, -1, 261184299Snwhitehorn}; 262184299Snwhitehorn 263273009Sjhibbitsstatic struct proc *pmubattproc; 264273009Sjhibbitsstatic struct kproc_desc pmu_batt_kp = { 265273009Sjhibbits "pmu_batt", 266273009Sjhibbits pmu_battquery_proc, 267273009Sjhibbits &pmubattproc 268273009Sjhibbits}; 269273009Sjhibbits 270184299Snwhitehorn/* We only have one of each device, so globals are safe */ 271184299Snwhitehornstatic device_t pmu = NULL; 272184299Snwhitehornstatic device_t pmu_extint = NULL; 273184299Snwhitehorn 274184299Snwhitehornstatic int 275184299Snwhitehornpmuextint_probe(device_t dev) 276184299Snwhitehorn{ 277184299Snwhitehorn const char *type = ofw_bus_get_type(dev); 278184299Snwhitehorn 279184299Snwhitehorn if (strcmp(type, "extint-gpio1") != 0) 280184299Snwhitehorn return (ENXIO); 281184299Snwhitehorn 282184299Snwhitehorn device_set_desc(dev, "Apple PMU99 External Interrupt"); 283184299Snwhitehorn return (0); 284184299Snwhitehorn} 285184299Snwhitehorn 286184299Snwhitehornstatic int 287184299Snwhitehornpmu_probe(device_t dev) 288184299Snwhitehorn{ 289184299Snwhitehorn const char *type = ofw_bus_get_type(dev); 290184299Snwhitehorn 291184299Snwhitehorn if (strcmp(type, "via-pmu") != 0) 292184299Snwhitehorn return (ENXIO); 293184299Snwhitehorn 294184299Snwhitehorn device_set_desc(dev, "Apple PMU99 Controller"); 295184299Snwhitehorn return (0); 296184299Snwhitehorn} 297184299Snwhitehorn 298184299Snwhitehorn 299184299Snwhitehornstatic int 300184299Snwhitehornsetup_pmu_intr(device_t dev, device_t extint) 301184299Snwhitehorn{ 302184299Snwhitehorn struct pmu_softc *sc; 303184299Snwhitehorn sc = device_get_softc(dev); 304184299Snwhitehorn 305184299Snwhitehorn sc->sc_irqrid = 0; 306184299Snwhitehorn sc->sc_irq = bus_alloc_resource_any(extint, SYS_RES_IRQ, &sc->sc_irqrid, 307184299Snwhitehorn RF_ACTIVE); 308184299Snwhitehorn if (sc->sc_irq == NULL) { 309184299Snwhitehorn device_printf(dev, "could not allocate interrupt\n"); 310184299Snwhitehorn return (ENXIO); 311184299Snwhitehorn } 312184299Snwhitehorn 313184299Snwhitehorn if (bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_MISC | INTR_MPSAFE 314184299Snwhitehorn | INTR_ENTROPY, NULL, pmu_intr, dev, &sc->sc_ih) != 0) { 315184299Snwhitehorn device_printf(dev, "could not setup interrupt\n"); 316184299Snwhitehorn bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irqrid, 317184299Snwhitehorn sc->sc_irq); 318184299Snwhitehorn return (ENXIO); 319184299Snwhitehorn } 320184299Snwhitehorn 321184299Snwhitehorn return (0); 322184299Snwhitehorn} 323184299Snwhitehorn 324184299Snwhitehornstatic int 325184299Snwhitehornpmuextint_attach(device_t dev) 326184299Snwhitehorn{ 327184299Snwhitehorn pmu_extint = dev; 328184299Snwhitehorn if (pmu) 329184299Snwhitehorn return (setup_pmu_intr(pmu,dev)); 330184299Snwhitehorn 331184299Snwhitehorn return (0); 332184299Snwhitehorn} 333184299Snwhitehorn 334184299Snwhitehornstatic int 335184299Snwhitehornpmu_attach(device_t dev) 336184299Snwhitehorn{ 337184299Snwhitehorn struct pmu_softc *sc; 338184299Snwhitehorn 339185754Snwhitehorn int i; 340184299Snwhitehorn uint8_t reg; 341184299Snwhitehorn uint8_t cmd[2] = {2, 0}; 342184299Snwhitehorn uint8_t resp[16]; 343184299Snwhitehorn phandle_t node,child; 344185727Snwhitehorn struct sysctl_ctx_list *ctx; 345185727Snwhitehorn struct sysctl_oid *tree; 346184299Snwhitehorn 347184299Snwhitehorn sc = device_get_softc(dev); 348184299Snwhitehorn sc->sc_dev = dev; 349184299Snwhitehorn 350184299Snwhitehorn sc->sc_memrid = 0; 351184299Snwhitehorn sc->sc_memr = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 352184299Snwhitehorn &sc->sc_memrid, RF_ACTIVE); 353184299Snwhitehorn 354184299Snwhitehorn mtx_init(&sc->sc_mutex,"pmu",NULL,MTX_DEF | MTX_RECURSE); 355184299Snwhitehorn 356184299Snwhitehorn if (sc->sc_memr == NULL) { 357184299Snwhitehorn device_printf(dev, "Could not alloc mem resource!\n"); 358184299Snwhitehorn return (ENXIO); 359184299Snwhitehorn } 360184299Snwhitehorn 361184299Snwhitehorn /* 362184299Snwhitehorn * Our interrupt is attached to a GPIO pin. Depending on probe order, 363184299Snwhitehorn * we may not have found it yet. If we haven't, it will find us, and 364184299Snwhitehorn * attach our interrupt then. 365184299Snwhitehorn */ 366184299Snwhitehorn pmu = dev; 367184299Snwhitehorn if (pmu_extint != NULL) { 368184299Snwhitehorn if (setup_pmu_intr(dev,pmu_extint) != 0) 369184299Snwhitehorn return (ENXIO); 370184299Snwhitehorn } 371184299Snwhitehorn 372184299Snwhitehorn sc->sc_autopoll = 0; 373185782Snwhitehorn sc->sc_batteries = 0; 374185782Snwhitehorn sc->adb_bus = NULL; 375185782Snwhitehorn sc->sc_leddev = NULL; 376184299Snwhitehorn 377184299Snwhitehorn /* Init PMU */ 378184299Snwhitehorn 379259284Sjhibbits pmu_write_reg(sc, vBufB, pmu_read_reg(sc, vBufB) | vPB4); 380259284Sjhibbits pmu_write_reg(sc, vDirB, (pmu_read_reg(sc, vDirB) | vPB4) & ~vPB3); 381259284Sjhibbits 382259284Sjhibbits reg = PMU_DEFAULTS; 383184299Snwhitehorn pmu_send(sc, PMU_SET_IMASK, 1, ®, 16, resp); 384184299Snwhitehorn 385259284Sjhibbits pmu_write_reg(sc, vIER, 0x94); /* make sure VIA interrupts are on */ 386184299Snwhitehorn 387184299Snwhitehorn pmu_send(sc, PMU_SYSTEM_READY, 1, cmd, 16, resp); 388260872Sjhibbits pmu_send(sc, PMU_GET_VERSION, 0, cmd, 16, resp); 389184299Snwhitehorn 390184299Snwhitehorn /* Initialize child buses (ADB) */ 391184299Snwhitehorn node = ofw_bus_get_node(dev); 392184299Snwhitehorn 393184299Snwhitehorn for (child = OF_child(node); child != 0; child = OF_peer(child)) { 394184299Snwhitehorn char name[32]; 395184299Snwhitehorn 396184299Snwhitehorn memset(name, 0, sizeof(name)); 397184299Snwhitehorn OF_getprop(child, "name", name, sizeof(name)); 398184299Snwhitehorn 399184299Snwhitehorn if (bootverbose) 400184299Snwhitehorn device_printf(dev, "PMU child <%s>\n",name); 401184299Snwhitehorn 402184299Snwhitehorn if (strncmp(name, "adb", 4) == 0) { 403184299Snwhitehorn sc->adb_bus = device_add_child(dev,"adb",-1); 404184299Snwhitehorn } 405185754Snwhitehorn 406185754Snwhitehorn if (strncmp(name, "power-mgt", 9) == 0) { 407185754Snwhitehorn uint32_t prim_info[9]; 408185754Snwhitehorn 409185754Snwhitehorn if (OF_getprop(child, "prim-info", prim_info, 410185754Snwhitehorn sizeof(prim_info)) >= 7) 411185754Snwhitehorn sc->sc_batteries = (prim_info[6] >> 16) & 0xff; 412185754Snwhitehorn 413185754Snwhitehorn if (bootverbose && sc->sc_batteries > 0) 414185754Snwhitehorn device_printf(dev, "%d batteries detected\n", 415185754Snwhitehorn sc->sc_batteries); 416185754Snwhitehorn } 417184299Snwhitehorn } 418184299Snwhitehorn 419185727Snwhitehorn /* 420185727Snwhitehorn * Set up sysctls 421185727Snwhitehorn */ 422185727Snwhitehorn 423185727Snwhitehorn ctx = device_get_sysctl_ctx(dev); 424185727Snwhitehorn tree = device_get_sysctl_tree(dev); 425185727Snwhitehorn 426185727Snwhitehorn SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 427185754Snwhitehorn "server_mode", CTLTYPE_INT | CTLFLAG_RW, sc, 0, 428185754Snwhitehorn pmu_server_mode, "I", "Enable reboot after power failure"); 429185727Snwhitehorn 430185754Snwhitehorn if (sc->sc_batteries > 0) { 431185754Snwhitehorn struct sysctl_oid *oid, *battroot; 432185754Snwhitehorn char battnum[2]; 433185754Snwhitehorn 434273009Sjhibbits /* Only start the battery monitor if we have a battery. */ 435273009Sjhibbits kproc_start(&pmu_batt_kp); 436193159Snwhitehorn SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 437193159Snwhitehorn "acline", CTLTYPE_INT | CTLFLAG_RD, sc, 0, 438193159Snwhitehorn pmu_acline_state, "I", "AC Line Status"); 439193159Snwhitehorn 440185754Snwhitehorn battroot = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, 441185754Snwhitehorn "batteries", CTLFLAG_RD, 0, "Battery Information"); 442185754Snwhitehorn 443185754Snwhitehorn for (i = 0; i < sc->sc_batteries; i++) { 444185754Snwhitehorn battnum[0] = i + '0'; 445185754Snwhitehorn battnum[1] = '\0'; 446185754Snwhitehorn 447185754Snwhitehorn oid = SYSCTL_ADD_NODE(ctx, SYSCTL_CHILDREN(battroot), 448185754Snwhitehorn OID_AUTO, battnum, CTLFLAG_RD, 0, 449185754Snwhitehorn "Battery Information"); 450185754Snwhitehorn 451185754Snwhitehorn SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 452185754Snwhitehorn "present", CTLTYPE_INT | CTLFLAG_RD, sc, 453185754Snwhitehorn PMU_BATSYSCTL_PRESENT | i, pmu_battquery_sysctl, 454185754Snwhitehorn "I", "Battery present"); 455185754Snwhitehorn SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 456185754Snwhitehorn "charging", CTLTYPE_INT | CTLFLAG_RD, sc, 457185754Snwhitehorn PMU_BATSYSCTL_CHARGING | i, pmu_battquery_sysctl, 458185754Snwhitehorn "I", "Battery charging"); 459185754Snwhitehorn SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 460185754Snwhitehorn "charge", CTLTYPE_INT | CTLFLAG_RD, sc, 461185754Snwhitehorn PMU_BATSYSCTL_CHARGE | i, pmu_battquery_sysctl, 462185754Snwhitehorn "I", "Battery charge (mAh)"); 463185754Snwhitehorn SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 464185754Snwhitehorn "maxcharge", CTLTYPE_INT | CTLFLAG_RD, sc, 465185754Snwhitehorn PMU_BATSYSCTL_MAXCHARGE | i, pmu_battquery_sysctl, 466185754Snwhitehorn "I", "Maximum battery capacity (mAh)"); 467185754Snwhitehorn SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 468185754Snwhitehorn "rate", CTLTYPE_INT | CTLFLAG_RD, sc, 469185754Snwhitehorn PMU_BATSYSCTL_CURRENT | i, pmu_battquery_sysctl, 470185754Snwhitehorn "I", "Battery discharge rate (mA)"); 471185754Snwhitehorn SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 472185754Snwhitehorn "voltage", CTLTYPE_INT | CTLFLAG_RD, sc, 473185754Snwhitehorn PMU_BATSYSCTL_VOLTAGE | i, pmu_battquery_sysctl, 474185754Snwhitehorn "I", "Battery voltage (mV)"); 475185754Snwhitehorn 476185754Snwhitehorn /* Knobs for mental compatibility with ACPI */ 477185754Snwhitehorn 478185754Snwhitehorn SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 479185754Snwhitehorn "time", CTLTYPE_INT | CTLFLAG_RD, sc, 480185754Snwhitehorn PMU_BATSYSCTL_TIME | i, pmu_battquery_sysctl, 481185754Snwhitehorn "I", "Time Remaining (minutes)"); 482185754Snwhitehorn SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(oid), OID_AUTO, 483185754Snwhitehorn "life", CTLTYPE_INT | CTLFLAG_RD, sc, 484185754Snwhitehorn PMU_BATSYSCTL_LIFE | i, pmu_battquery_sysctl, 485185754Snwhitehorn "I", "Capacity remaining (percent)"); 486185754Snwhitehorn } 487185754Snwhitehorn } 488185754Snwhitehorn 489185782Snwhitehorn /* 490185782Snwhitehorn * Set up LED interface 491185782Snwhitehorn */ 492185782Snwhitehorn 493185782Snwhitehorn sc->sc_leddev = led_create(pmu_set_sleepled, sc, "sleepled"); 494185782Snwhitehorn 495205506Snwhitehorn /* 496205506Snwhitehorn * Register RTC 497205506Snwhitehorn */ 498205506Snwhitehorn 499205506Snwhitehorn clock_register(dev, 1000); 500205506Snwhitehorn 501212054Snwhitehorn /* 502212054Snwhitehorn * Register power control handler 503212054Snwhitehorn */ 504212054Snwhitehorn EVENTHANDLER_REGISTER(shutdown_final, pmu_shutdown, sc, 505212054Snwhitehorn SHUTDOWN_PRI_LAST); 506212054Snwhitehorn 507184299Snwhitehorn return (bus_generic_attach(dev)); 508184299Snwhitehorn} 509184299Snwhitehorn 510184299Snwhitehornstatic int 511184299Snwhitehornpmu_detach(device_t dev) 512184299Snwhitehorn{ 513184299Snwhitehorn struct pmu_softc *sc; 514184299Snwhitehorn 515184299Snwhitehorn sc = device_get_softc(dev); 516184299Snwhitehorn 517185782Snwhitehorn if (sc->sc_leddev != NULL) 518185782Snwhitehorn led_destroy(sc->sc_leddev); 519185782Snwhitehorn 520184299Snwhitehorn bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih); 521184299Snwhitehorn bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irqrid, sc->sc_irq); 522184299Snwhitehorn bus_release_resource(dev, SYS_RES_MEMORY, sc->sc_memrid, sc->sc_memr); 523184299Snwhitehorn mtx_destroy(&sc->sc_mutex); 524184299Snwhitehorn 525184299Snwhitehorn return (bus_generic_detach(dev)); 526184299Snwhitehorn} 527184299Snwhitehorn 528184299Snwhitehornstatic uint8_t 529184299Snwhitehornpmu_read_reg(struct pmu_softc *sc, u_int offset) 530184299Snwhitehorn{ 531184299Snwhitehorn return (bus_read_1(sc->sc_memr, offset)); 532184299Snwhitehorn} 533184299Snwhitehorn 534184299Snwhitehornstatic void 535184299Snwhitehornpmu_write_reg(struct pmu_softc *sc, u_int offset, uint8_t value) 536184299Snwhitehorn{ 537184299Snwhitehorn bus_write_1(sc->sc_memr, offset, value); 538184299Snwhitehorn} 539184299Snwhitehorn 540184299Snwhitehornstatic int 541184299Snwhitehornpmu_send_byte(struct pmu_softc *sc, uint8_t data) 542184299Snwhitehorn{ 543184299Snwhitehorn 544184299Snwhitehorn pmu_out(sc); 545184299Snwhitehorn pmu_write_reg(sc, vSR, data); 546184299Snwhitehorn pmu_ack_off(sc); 547184299Snwhitehorn /* wait for intr to come up */ 548184299Snwhitehorn /* XXX should add a timeout and bail if it expires */ 549184299Snwhitehorn do {} while (pmu_intr_state(sc) == 0); 550184299Snwhitehorn pmu_ack_on(sc); 551184299Snwhitehorn do {} while (pmu_intr_state(sc)); 552184299Snwhitehorn pmu_ack_on(sc); 553184299Snwhitehorn return 0; 554184299Snwhitehorn} 555184299Snwhitehorn 556184299Snwhitehornstatic inline int 557184299Snwhitehornpmu_read_byte(struct pmu_softc *sc, uint8_t *data) 558184299Snwhitehorn{ 559184299Snwhitehorn volatile uint8_t scratch; 560184299Snwhitehorn pmu_in(sc); 561184299Snwhitehorn scratch = pmu_read_reg(sc, vSR); 562184299Snwhitehorn pmu_ack_off(sc); 563184299Snwhitehorn /* wait for intr to come up */ 564184299Snwhitehorn do {} while (pmu_intr_state(sc) == 0); 565184299Snwhitehorn pmu_ack_on(sc); 566184299Snwhitehorn do {} while (pmu_intr_state(sc)); 567184299Snwhitehorn *data = pmu_read_reg(sc, vSR); 568184299Snwhitehorn return 0; 569184299Snwhitehorn} 570184299Snwhitehorn 571184299Snwhitehornstatic int 572184299Snwhitehornpmu_intr_state(struct pmu_softc *sc) 573184299Snwhitehorn{ 574184299Snwhitehorn return ((pmu_read_reg(sc, vBufB) & vPB3) == 0); 575184299Snwhitehorn} 576184299Snwhitehorn 577184299Snwhitehornstatic int 578184299Snwhitehornpmu_send(void *cookie, int cmd, int length, uint8_t *in_msg, int rlen, 579184299Snwhitehorn uint8_t *out_msg) 580184299Snwhitehorn{ 581184299Snwhitehorn struct pmu_softc *sc = cookie; 582184299Snwhitehorn int i, rcv_len = -1; 583184299Snwhitehorn uint8_t out_len, intreg; 584184299Snwhitehorn 585184299Snwhitehorn intreg = pmu_read_reg(sc, vIER); 586184299Snwhitehorn intreg &= 0x10; 587184299Snwhitehorn pmu_write_reg(sc, vIER, intreg); 588184299Snwhitehorn 589184299Snwhitehorn /* wait idle */ 590184299Snwhitehorn do {} while (pmu_intr_state(sc)); 591184299Snwhitehorn 592184299Snwhitehorn /* send command */ 593184299Snwhitehorn pmu_send_byte(sc, cmd); 594184299Snwhitehorn 595184299Snwhitehorn /* send length if necessary */ 596184299Snwhitehorn if (pm_send_cmd_type[cmd] < 0) { 597184299Snwhitehorn pmu_send_byte(sc, length); 598184299Snwhitehorn } 599184299Snwhitehorn 600184299Snwhitehorn for (i = 0; i < length; i++) { 601184299Snwhitehorn pmu_send_byte(sc, in_msg[i]); 602184299Snwhitehorn } 603184299Snwhitehorn 604184299Snwhitehorn /* see if there's data to read */ 605184299Snwhitehorn rcv_len = pm_receive_cmd_type[cmd]; 606184299Snwhitehorn if (rcv_len == 0) 607184299Snwhitehorn goto done; 608184299Snwhitehorn 609184299Snwhitehorn /* read command */ 610184299Snwhitehorn if (rcv_len == 1) { 611184299Snwhitehorn pmu_read_byte(sc, out_msg); 612184299Snwhitehorn goto done; 613184299Snwhitehorn } else 614184299Snwhitehorn out_msg[0] = cmd; 615184299Snwhitehorn if (rcv_len < 0) { 616184299Snwhitehorn pmu_read_byte(sc, &out_len); 617184299Snwhitehorn rcv_len = out_len + 1; 618184299Snwhitehorn } 619184299Snwhitehorn for (i = 1; i < min(rcv_len, rlen); i++) 620184299Snwhitehorn pmu_read_byte(sc, &out_msg[i]); 621184299Snwhitehorn 622184299Snwhitehorndone: 623184299Snwhitehorn pmu_write_reg(sc, vIER, (intreg == 0) ? 0 : 0x90); 624184299Snwhitehorn 625184299Snwhitehorn return rcv_len; 626184299Snwhitehorn} 627184299Snwhitehorn 628184299Snwhitehorn 629194027Savgstatic u_int 630184299Snwhitehornpmu_poll(device_t dev) 631184299Snwhitehorn{ 632184299Snwhitehorn pmu_intr(dev); 633194027Savg return (0); 634184299Snwhitehorn} 635184299Snwhitehorn 636184299Snwhitehornstatic void 637184299Snwhitehornpmu_in(struct pmu_softc *sc) 638184299Snwhitehorn{ 639184299Snwhitehorn uint8_t reg; 640184299Snwhitehorn 641184299Snwhitehorn reg = pmu_read_reg(sc, vACR); 642184299Snwhitehorn reg &= ~vSR_OUT; 643184299Snwhitehorn reg |= 0x0c; 644184299Snwhitehorn pmu_write_reg(sc, vACR, reg); 645184299Snwhitehorn} 646184299Snwhitehorn 647184299Snwhitehornstatic void 648184299Snwhitehornpmu_out(struct pmu_softc *sc) 649184299Snwhitehorn{ 650184299Snwhitehorn uint8_t reg; 651184299Snwhitehorn 652184299Snwhitehorn reg = pmu_read_reg(sc, vACR); 653184299Snwhitehorn reg |= vSR_OUT; 654184299Snwhitehorn reg |= 0x0c; 655184299Snwhitehorn pmu_write_reg(sc, vACR, reg); 656184299Snwhitehorn} 657184299Snwhitehorn 658184299Snwhitehornstatic void 659184299Snwhitehornpmu_ack_off(struct pmu_softc *sc) 660184299Snwhitehorn{ 661184299Snwhitehorn uint8_t reg; 662184299Snwhitehorn 663184299Snwhitehorn reg = pmu_read_reg(sc, vBufB); 664184299Snwhitehorn reg &= ~vPB4; 665184299Snwhitehorn pmu_write_reg(sc, vBufB, reg); 666184299Snwhitehorn} 667184299Snwhitehorn 668184299Snwhitehornstatic void 669184299Snwhitehornpmu_ack_on(struct pmu_softc *sc) 670184299Snwhitehorn{ 671184299Snwhitehorn uint8_t reg; 672184299Snwhitehorn 673184299Snwhitehorn reg = pmu_read_reg(sc, vBufB); 674184299Snwhitehorn reg |= vPB4; 675184299Snwhitehorn pmu_write_reg(sc, vBufB, reg); 676184299Snwhitehorn} 677184299Snwhitehorn 678184299Snwhitehornstatic void 679184299Snwhitehornpmu_intr(void *arg) 680184299Snwhitehorn{ 681184299Snwhitehorn device_t dev; 682184299Snwhitehorn struct pmu_softc *sc; 683184299Snwhitehorn 684184299Snwhitehorn unsigned int len; 685184299Snwhitehorn uint8_t resp[16]; 686184299Snwhitehorn uint8_t junk[16]; 687184299Snwhitehorn 688184299Snwhitehorn dev = (device_t)arg; 689184299Snwhitehorn sc = device_get_softc(dev); 690184299Snwhitehorn 691184299Snwhitehorn mtx_lock(&sc->sc_mutex); 692184299Snwhitehorn 693184299Snwhitehorn pmu_write_reg(sc, vIFR, 0x90); /* Clear 'em */ 694184299Snwhitehorn len = pmu_send(sc, PMU_INT_ACK, 0, NULL, 16, resp); 695184299Snwhitehorn 696184299Snwhitehorn mtx_unlock(&sc->sc_mutex); 697184299Snwhitehorn 698184299Snwhitehorn if ((len < 1) || (resp[1] == 0)) { 699184299Snwhitehorn return; 700184299Snwhitehorn } 701184299Snwhitehorn 702184299Snwhitehorn if (resp[1] & PMU_INT_ADB) { 703184299Snwhitehorn /* 704184299Snwhitehorn * the PMU will turn off autopolling after each command that 705184299Snwhitehorn * it did not issue, so we assume any but TALK R0 is ours and 706184299Snwhitehorn * re-enable autopoll here whenever we receive an ACK for a 707184299Snwhitehorn * non TR0 command. 708184299Snwhitehorn */ 709184299Snwhitehorn mtx_lock(&sc->sc_mutex); 710184299Snwhitehorn 711184299Snwhitehorn if ((resp[2] & 0x0f) != (ADB_COMMAND_TALK << 2)) { 712184299Snwhitehorn if (sc->sc_autopoll) { 713184299Snwhitehorn uint8_t cmd[] = {0, PMU_SET_POLL_MASK, 714184299Snwhitehorn (sc->sc_autopoll >> 8) & 0xff, 715184299Snwhitehorn sc->sc_autopoll & 0xff}; 716184299Snwhitehorn 717184299Snwhitehorn pmu_send(sc, PMU_ADB_CMD, 4, cmd, 16, junk); 718184299Snwhitehorn } 719184299Snwhitehorn } 720184299Snwhitehorn 721184299Snwhitehorn mtx_unlock(&sc->sc_mutex); 722184299Snwhitehorn 723184299Snwhitehorn adb_receive_raw_packet(sc->adb_bus,resp[1],resp[2], 724184299Snwhitehorn len - 3,&resp[3]); 725184299Snwhitehorn } 726228270Sjhibbits if (resp[1] & PMU_INT_ENVIRONMENT) { 727228277Sjhibbits /* if the lid was just closed, notify devd. */ 728228270Sjhibbits if ((resp[2] & PMU_ENV_LID_CLOSED) && (!sc->lid_closed)) { 729228270Sjhibbits sc->lid_closed = 1; 730228270Sjhibbits if (devctl_process_running()) 731228270Sjhibbits devctl_notify("PMU", "lid", "close", NULL); 732228270Sjhibbits } 733228270Sjhibbits else if (!(resp[2] & PMU_ENV_LID_CLOSED) && (sc->lid_closed)) { 734228277Sjhibbits /* if the lid was just opened, notify devd. */ 735228270Sjhibbits if (devctl_process_running()) 736228270Sjhibbits devctl_notify("PMU", "lid", "open", NULL); 737228270Sjhibbits sc->lid_closed = 0; 738228270Sjhibbits } 739228270Sjhibbits } 740184299Snwhitehorn} 741184299Snwhitehorn 742184299Snwhitehornstatic u_int 743184299Snwhitehornpmu_adb_send(device_t dev, u_char command_byte, int len, u_char *data, 744184299Snwhitehorn u_char poll) 745184299Snwhitehorn{ 746184299Snwhitehorn struct pmu_softc *sc = device_get_softc(dev); 747184299Snwhitehorn int i,replen; 748184299Snwhitehorn uint8_t packet[16], resp[16]; 749184299Snwhitehorn 750184299Snwhitehorn /* construct an ADB command packet and send it */ 751184299Snwhitehorn 752184299Snwhitehorn packet[0] = command_byte; 753184299Snwhitehorn 754184299Snwhitehorn packet[1] = 0; 755184299Snwhitehorn packet[2] = len; 756184299Snwhitehorn for (i = 0; i < len; i++) 757184299Snwhitehorn packet[i + 3] = data[i]; 758184299Snwhitehorn 759184299Snwhitehorn mtx_lock(&sc->sc_mutex); 760184299Snwhitehorn replen = pmu_send(sc, PMU_ADB_CMD, len + 3, packet, 16, resp); 761184299Snwhitehorn mtx_unlock(&sc->sc_mutex); 762184299Snwhitehorn 763184299Snwhitehorn if (poll) 764184299Snwhitehorn pmu_poll(dev); 765184299Snwhitehorn 766184299Snwhitehorn return 0; 767184299Snwhitehorn} 768184299Snwhitehorn 769184299Snwhitehornstatic u_int 770184299Snwhitehornpmu_adb_autopoll(device_t dev, uint16_t mask) 771184299Snwhitehorn{ 772184299Snwhitehorn struct pmu_softc *sc = device_get_softc(dev); 773184299Snwhitehorn 774184299Snwhitehorn /* magical incantation to re-enable autopolling */ 775184299Snwhitehorn uint8_t cmd[] = {0, PMU_SET_POLL_MASK, (mask >> 8) & 0xff, mask & 0xff}; 776184299Snwhitehorn uint8_t resp[16]; 777184299Snwhitehorn 778184299Snwhitehorn mtx_lock(&sc->sc_mutex); 779184299Snwhitehorn 780184299Snwhitehorn if (sc->sc_autopoll == mask) { 781184299Snwhitehorn mtx_unlock(&sc->sc_mutex); 782184299Snwhitehorn return 0; 783184299Snwhitehorn } 784184299Snwhitehorn 785184299Snwhitehorn sc->sc_autopoll = mask & 0xffff; 786184299Snwhitehorn 787184299Snwhitehorn if (mask) 788184299Snwhitehorn pmu_send(sc, PMU_ADB_CMD, 4, cmd, 16, resp); 789184299Snwhitehorn else 790184299Snwhitehorn pmu_send(sc, PMU_ADB_POLL_OFF, 0, NULL, 16, resp); 791184299Snwhitehorn 792184299Snwhitehorn mtx_unlock(&sc->sc_mutex); 793184299Snwhitehorn 794184299Snwhitehorn return 0; 795184299Snwhitehorn} 796185727Snwhitehorn 797185782Snwhitehornstatic void 798212054Snwhitehornpmu_shutdown(void *xsc, int howto) 799212054Snwhitehorn{ 800212054Snwhitehorn struct pmu_softc *sc = xsc; 801212054Snwhitehorn uint8_t cmd[] = {'M', 'A', 'T', 'T'}; 802212054Snwhitehorn 803212054Snwhitehorn if (howto & RB_HALT) 804212054Snwhitehorn pmu_send(sc, PMU_POWER_OFF, 4, cmd, 0, NULL); 805212054Snwhitehorn else 806212054Snwhitehorn pmu_send(sc, PMU_RESET_CPU, 0, NULL, 0, NULL); 807212054Snwhitehorn 808212054Snwhitehorn for (;;); 809212054Snwhitehorn} 810212054Snwhitehorn 811212054Snwhitehornstatic void 812185782Snwhitehornpmu_set_sleepled(void *xsc, int onoff) 813185782Snwhitehorn{ 814185782Snwhitehorn struct pmu_softc *sc = xsc; 815185782Snwhitehorn uint8_t cmd[] = {4, 0, 0}; 816185782Snwhitehorn 817185782Snwhitehorn cmd[2] = onoff; 818185782Snwhitehorn 819185782Snwhitehorn mtx_lock(&sc->sc_mutex); 820185782Snwhitehorn pmu_send(sc, PMU_SET_SLEEPLED, 3, cmd, 0, NULL); 821185782Snwhitehorn mtx_unlock(&sc->sc_mutex); 822185782Snwhitehorn} 823185782Snwhitehorn 824185727Snwhitehornstatic int 825185727Snwhitehornpmu_server_mode(SYSCTL_HANDLER_ARGS) 826185727Snwhitehorn{ 827185727Snwhitehorn struct pmu_softc *sc = arg1; 828185727Snwhitehorn 829185727Snwhitehorn u_int server_mode = 0; 830185727Snwhitehorn uint8_t getcmd[] = {PMU_PWR_GET_POWERUP_EVENTS}; 831185727Snwhitehorn uint8_t setcmd[] = {0, 0, PMU_PWR_WAKEUP_AC_INSERT}; 832185727Snwhitehorn uint8_t resp[3]; 833185727Snwhitehorn int error, len; 834185727Snwhitehorn 835185727Snwhitehorn mtx_lock(&sc->sc_mutex); 836185727Snwhitehorn len = pmu_send(sc, PMU_POWER_EVENTS, 1, getcmd, 3, resp); 837185727Snwhitehorn mtx_unlock(&sc->sc_mutex); 838185727Snwhitehorn 839185727Snwhitehorn if (len == 3) 840185727Snwhitehorn server_mode = (resp[2] & PMU_PWR_WAKEUP_AC_INSERT) ? 1 : 0; 841185727Snwhitehorn 842185727Snwhitehorn error = sysctl_handle_int(oidp, &server_mode, 0, req); 843185727Snwhitehorn 844185727Snwhitehorn if (len != 3) 845185727Snwhitehorn return (EINVAL); 846185727Snwhitehorn 847185727Snwhitehorn if (error || !req->newptr) 848185727Snwhitehorn return (error); 849185727Snwhitehorn 850185727Snwhitehorn if (server_mode == 1) 851185727Snwhitehorn setcmd[0] = PMU_PWR_SET_POWERUP_EVENTS; 852185727Snwhitehorn else if (server_mode == 0) 853185727Snwhitehorn setcmd[0] = PMU_PWR_CLR_POWERUP_EVENTS; 854185727Snwhitehorn else 855185727Snwhitehorn return (EINVAL); 856185727Snwhitehorn 857185727Snwhitehorn setcmd[1] = resp[1]; 858185727Snwhitehorn 859185727Snwhitehorn mtx_lock(&sc->sc_mutex); 860185727Snwhitehorn pmu_send(sc, PMU_POWER_EVENTS, 3, setcmd, 2, resp); 861185727Snwhitehorn mtx_unlock(&sc->sc_mutex); 862185727Snwhitehorn 863185727Snwhitehorn return (0); 864185727Snwhitehorn} 865185727Snwhitehorn 866185754Snwhitehornstatic int 867185754Snwhitehornpmu_query_battery(struct pmu_softc *sc, int batt, struct pmu_battstate *info) 868185754Snwhitehorn{ 869185754Snwhitehorn uint8_t reg; 870185754Snwhitehorn uint8_t resp[16]; 871185754Snwhitehorn int len; 872185754Snwhitehorn 873185754Snwhitehorn reg = batt + 1; 874185754Snwhitehorn 875185754Snwhitehorn mtx_lock(&sc->sc_mutex); 876185754Snwhitehorn len = pmu_send(sc, PMU_SMART_BATTERY_STATE, 1, ®, 16, resp); 877185754Snwhitehorn mtx_unlock(&sc->sc_mutex); 878185754Snwhitehorn 879185754Snwhitehorn if (len < 3) 880185754Snwhitehorn return (-1); 881185754Snwhitehorn 882185754Snwhitehorn /* All PMU battery info replies share a common header: 883185754Snwhitehorn * Byte 1 Payload Format 884185754Snwhitehorn * Byte 2 Battery Flags 885185754Snwhitehorn */ 886185754Snwhitehorn 887185754Snwhitehorn info->state = resp[2]; 888185754Snwhitehorn 889185754Snwhitehorn switch (resp[1]) { 890185754Snwhitehorn case 3: 891185754Snwhitehorn case 4: 892185754Snwhitehorn /* 893185754Snwhitehorn * Formats 3 and 4 appear to be the same: 894185754Snwhitehorn * Byte 3 Charge 895185754Snwhitehorn * Byte 4 Max Charge 896185754Snwhitehorn * Byte 5 Current 897185754Snwhitehorn * Byte 6 Voltage 898185754Snwhitehorn */ 899185754Snwhitehorn 900185754Snwhitehorn info->charge = resp[3]; 901185754Snwhitehorn info->maxcharge = resp[4]; 902185754Snwhitehorn /* Current can be positive or negative */ 903185754Snwhitehorn info->current = (int8_t)resp[5]; 904185754Snwhitehorn info->voltage = resp[6]; 905185754Snwhitehorn break; 906185754Snwhitehorn case 5: 907185754Snwhitehorn /* 908185754Snwhitehorn * Formats 5 is a wider version of formats 3 and 4 909185754Snwhitehorn * Byte 3-4 Charge 910185754Snwhitehorn * Byte 5-6 Max Charge 911185754Snwhitehorn * Byte 7-8 Current 912185754Snwhitehorn * Byte 9-10 Voltage 913185754Snwhitehorn */ 914185754Snwhitehorn 915185754Snwhitehorn info->charge = (resp[3] << 8) | resp[4]; 916185754Snwhitehorn info->maxcharge = (resp[5] << 8) | resp[6]; 917185754Snwhitehorn /* Current can be positive or negative */ 918185754Snwhitehorn info->current = (int16_t)((resp[7] << 8) | resp[8]); 919185754Snwhitehorn info->voltage = (resp[9] << 8) | resp[10]; 920185754Snwhitehorn break; 921185754Snwhitehorn default: 922185754Snwhitehorn device_printf(sc->sc_dev, "Unknown battery info format (%d)!\n", 923185754Snwhitehorn resp[1]); 924185754Snwhitehorn return (-1); 925185754Snwhitehorn } 926185754Snwhitehorn 927185754Snwhitehorn return (0); 928185754Snwhitehorn} 929185754Snwhitehorn 930273009Sjhibbitsstatic void 931273009Sjhibbitspmu_battery_notify(struct pmu_battstate *batt, struct pmu_battstate *old) 932273009Sjhibbits{ 933273009Sjhibbits char notify_buf[16]; 934273009Sjhibbits int acline; 935273009Sjhibbits 936273009Sjhibbits acline = (batt->state & PMU_PWR_AC_PRESENT) ? 1 : 0; 937273009Sjhibbits if (acline != (old->state & PMU_PWR_AC_PRESENT)) { 938273009Sjhibbits snprintf(notify_buf, sizeof(notify_buf), 939273009Sjhibbits "notify=0x%02x", acline); 940273009Sjhibbits devctl_notify("PMU", "POWER", "ACLINE", notify_buf); 941273009Sjhibbits } 942273009Sjhibbits} 943273009Sjhibbits 944273009Sjhibbitsstatic void 945273009Sjhibbitspmu_battquery_proc() 946273009Sjhibbits{ 947273009Sjhibbits struct pmu_softc *sc; 948273009Sjhibbits struct pmu_battstate batt; 949273009Sjhibbits struct pmu_battstate cur_batt; 950273009Sjhibbits int error; 951273009Sjhibbits 952273009Sjhibbits sc = device_get_softc(pmu); 953273009Sjhibbits 954273009Sjhibbits error = pmu_query_battery(sc, 0, &cur_batt); 955273009Sjhibbits while (1) { 956273009Sjhibbits error = pmu_query_battery(sc, 0, &batt); 957273009Sjhibbits pmu_battery_notify(&batt, &cur_batt); 958273009Sjhibbits cur_batt = batt; 959273009Sjhibbits pause("pmu_batt", hz); 960273009Sjhibbits } 961273009Sjhibbits} 962273009Sjhibbits 963185754Snwhitehornstatic int 964193159Snwhitehornpmu_acline_state(SYSCTL_HANDLER_ARGS) 965193159Snwhitehorn{ 966193159Snwhitehorn struct pmu_softc *sc; 967193159Snwhitehorn struct pmu_battstate batt; 968193159Snwhitehorn int error, result; 969193159Snwhitehorn 970193159Snwhitehorn sc = arg1; 971193159Snwhitehorn 972193159Snwhitehorn /* The PMU treats the AC line status as a property of the battery */ 973193159Snwhitehorn error = pmu_query_battery(sc, 0, &batt); 974193159Snwhitehorn 975193159Snwhitehorn if (error != 0) 976193159Snwhitehorn return (error); 977193159Snwhitehorn 978193159Snwhitehorn result = (batt.state & PMU_PWR_AC_PRESENT) ? 1 : 0; 979193159Snwhitehorn error = sysctl_handle_int(oidp, &result, 0, req); 980193159Snwhitehorn 981193159Snwhitehorn return (error); 982193159Snwhitehorn} 983193159Snwhitehorn 984193159Snwhitehornstatic int 985185754Snwhitehornpmu_battquery_sysctl(SYSCTL_HANDLER_ARGS) 986185754Snwhitehorn{ 987185754Snwhitehorn struct pmu_softc *sc; 988185754Snwhitehorn struct pmu_battstate batt; 989185754Snwhitehorn int error, result; 990185754Snwhitehorn 991185754Snwhitehorn sc = arg1; 992185754Snwhitehorn 993185754Snwhitehorn error = pmu_query_battery(sc, arg2 & 0x00ff, &batt); 994185754Snwhitehorn 995185754Snwhitehorn if (error != 0) 996185754Snwhitehorn return (error); 997185754Snwhitehorn 998185754Snwhitehorn switch (arg2 & 0xff00) { 999185754Snwhitehorn case PMU_BATSYSCTL_PRESENT: 1000185754Snwhitehorn result = (batt.state & PMU_PWR_BATT_PRESENT) ? 1 : 0; 1001185754Snwhitehorn break; 1002185754Snwhitehorn case PMU_BATSYSCTL_CHARGING: 1003185754Snwhitehorn result = (batt.state & PMU_PWR_BATT_CHARGING) ? 1 : 0; 1004185754Snwhitehorn break; 1005185754Snwhitehorn case PMU_BATSYSCTL_CHARGE: 1006185754Snwhitehorn result = batt.charge; 1007185754Snwhitehorn break; 1008185754Snwhitehorn case PMU_BATSYSCTL_MAXCHARGE: 1009185754Snwhitehorn result = batt.maxcharge; 1010185754Snwhitehorn break; 1011185754Snwhitehorn case PMU_BATSYSCTL_CURRENT: 1012185754Snwhitehorn result = batt.current; 1013185754Snwhitehorn break; 1014185754Snwhitehorn case PMU_BATSYSCTL_VOLTAGE: 1015185754Snwhitehorn result = batt.voltage; 1016185754Snwhitehorn break; 1017185754Snwhitehorn case PMU_BATSYSCTL_TIME: 1018185754Snwhitehorn /* Time remaining until full charge/discharge, in minutes */ 1019185754Snwhitehorn 1020185754Snwhitehorn if (batt.current >= 0) 1021185754Snwhitehorn result = (batt.maxcharge - batt.charge) /* mAh */ * 60 1022185754Snwhitehorn / batt.current /* mA */; 1023185754Snwhitehorn else 1024185754Snwhitehorn result = (batt.charge /* mAh */ * 60) 1025185754Snwhitehorn / (-batt.current /* mA */); 1026185754Snwhitehorn break; 1027185754Snwhitehorn case PMU_BATSYSCTL_LIFE: 1028185754Snwhitehorn /* Battery charge fraction, in percent */ 1029185754Snwhitehorn result = (batt.charge * 100) / batt.maxcharge; 1030185754Snwhitehorn break; 1031185754Snwhitehorn default: 1032185754Snwhitehorn /* This should never happen */ 1033185754Snwhitehorn result = -1; 1034185754Snwhitehorn }; 1035185754Snwhitehorn 1036185754Snwhitehorn error = sysctl_handle_int(oidp, &result, 0, req); 1037185754Snwhitehorn 1038185754Snwhitehorn return (error); 1039185754Snwhitehorn} 1040185754Snwhitehorn 1041205506Snwhitehorn#define DIFF19041970 2082844800 1042205506Snwhitehorn 1043205506Snwhitehornstatic int 1044205506Snwhitehornpmu_gettime(device_t dev, struct timespec *ts) 1045205506Snwhitehorn{ 1046205506Snwhitehorn struct pmu_softc *sc = device_get_softc(dev); 1047205506Snwhitehorn uint8_t resp[16]; 1048205506Snwhitehorn uint32_t sec; 1049205506Snwhitehorn 1050205506Snwhitehorn mtx_lock(&sc->sc_mutex); 1051205506Snwhitehorn pmu_send(sc, PMU_READ_RTC, 0, NULL, 16, resp); 1052205506Snwhitehorn mtx_unlock(&sc->sc_mutex); 1053205506Snwhitehorn 1054205506Snwhitehorn memcpy(&sec, &resp[1], 4); 1055205506Snwhitehorn ts->tv_sec = sec - DIFF19041970; 1056205506Snwhitehorn ts->tv_nsec = 0; 1057205506Snwhitehorn 1058205506Snwhitehorn return (0); 1059205506Snwhitehorn} 1060205506Snwhitehorn 1061205506Snwhitehornstatic int 1062205506Snwhitehornpmu_settime(device_t dev, struct timespec *ts) 1063205506Snwhitehorn{ 1064205506Snwhitehorn struct pmu_softc *sc = device_get_softc(dev); 1065205506Snwhitehorn uint32_t sec; 1066205506Snwhitehorn 1067205506Snwhitehorn sec = ts->tv_sec + DIFF19041970; 1068205506Snwhitehorn 1069205506Snwhitehorn mtx_lock(&sc->sc_mutex); 1070205506Snwhitehorn pmu_send(sc, PMU_SET_RTC, sizeof(sec), (uint8_t *)&sec, 0, NULL); 1071205506Snwhitehorn mtx_unlock(&sc->sc_mutex); 1072205506Snwhitehorn 1073205506Snwhitehorn return (0); 1074205506Snwhitehorn} 1075205506Snwhitehorn 1076259284Sjhibbitsint 1077259284Sjhibbitspmu_set_speed(int low_speed) 1078259284Sjhibbits{ 1079259284Sjhibbits struct pmu_softc *sc; 1080259284Sjhibbits uint8_t sleepcmd[] = {'W', 'O', 'O', 'F', 0}; 1081259284Sjhibbits uint8_t resp[16]; 1082259284Sjhibbits 1083259284Sjhibbits sc = device_get_softc(pmu); 1084259284Sjhibbits pmu_write_reg(sc, vIER, 0x10); 1085259284Sjhibbits spinlock_enter(); 1086259284Sjhibbits mtdec(0x7fffffff); 1087259284Sjhibbits mb(); 1088259284Sjhibbits mtdec(0x7fffffff); 1089259284Sjhibbits 1090259284Sjhibbits sleepcmd[4] = low_speed; 1091259284Sjhibbits pmu_send(sc, PMU_CPU_SPEED, 5, sleepcmd, 16, resp); 1092259284Sjhibbits unin_chip_sleep(NULL, 1); 1093261309Sjhibbits platform_sleep(); 1094259284Sjhibbits unin_chip_wake(NULL); 1095259284Sjhibbits 1096259284Sjhibbits mtdec(1); /* Force a decrementer exception */ 1097259284Sjhibbits spinlock_exit(); 1098259284Sjhibbits pmu_write_reg(sc, vIER, 0x90); 1099259284Sjhibbits 1100259284Sjhibbits return (0); 1101259284Sjhibbits} 1102