--- /dev/null
+/*-
+ * Copyright (c) 2005 Hans Petter Selasky
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD: src/sys/dev/acpica/acpi_smbat.c,v 1.11 2011/11/07 15:43:11 ed Exp $
+ */
+
+#include "opt_acpi.h"
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/bus.h>
+
+#include "acpi.h"
+#include <acpivar.h>
+#include <acpiio.h>
+#include <acpi_smbus.h>
+
+/* Transactions have failed after 500 ms. */
+#define SMBUS_TIMEOUT 50
+
+struct acpi_smbat_softc {
+ uint8_t sb_base_addr;
+ device_t ec_dev;
+
+ struct acpi_bif bif;
+ struct acpi_bst bst;
+ struct timespec bif_lastupdated;
+ struct timespec bst_lastupdated;
+};
+
+static int acpi_smbat_probe(device_t dev);
+static int acpi_smbat_attach(device_t dev);
+static int acpi_smbat_shutdown(device_t dev);
+static int acpi_smbat_info_expired(struct timespec *lastupdated);
+static void acpi_smbat_info_updated(struct timespec *lastupdated);
+static int acpi_smbat_get_bif(device_t dev, struct acpi_bif *bif);
+static int acpi_smbat_get_bst(device_t dev, struct acpi_bst *bst);
+
+ACPI_SERIAL_DECL(smbat, "ACPI Smart Battery");
+
+SYSCTL_DECL(_debug_acpi);
+static SYSCTL_NODE(_debug_acpi, OID_AUTO, batt, CTLFLAG_RD, NULL,
+ "Battery debugging");
+
+/* On some laptops with smart batteries, enabling battery monitoring
+ * software causes keystrokes from atkbd to be lost. This has also been
+ * reported on Linux, and is apparently due to the keyboard and I2C line
+ * for the battery being routed through the same chip. Whether that's
+ * accurate or not, adding extra sleeps to the status checking code
+ * causes the problem to go away.
+ *
+ * If you experience that problem, try a value of 10ms and move up
+ * from there.
+ */
+static int batt_sleep_ms;
+SYSCTL_INT(_debug_acpi_batt, OID_AUTO, batt_sleep_ms, CTLFLAG_RW, &batt_sleep_ms, 0,
+ "Sleep during battery status updates to prevent keystroke loss.");
+
+static device_method_t acpi_smbat_methods[] = {
+ /* device interface */
+ DEVMETHOD(device_probe, acpi_smbat_probe),
+ DEVMETHOD(device_attach, acpi_smbat_attach),
+ DEVMETHOD(device_shutdown, acpi_smbat_shutdown),
+
+ /* ACPI battery interface */
+ DEVMETHOD(acpi_batt_get_status, acpi_smbat_get_bst),
+ DEVMETHOD(acpi_batt_get_info, acpi_smbat_get_bif),
+
+ {0, 0}
+};
+
+static driver_t acpi_smbat_driver = {
+ "battery",
+ acpi_smbat_methods,
+ sizeof(struct acpi_smbat_softc),
+};
+
+static devclass_t acpi_smbat_devclass;
+DRIVER_MODULE(acpi_smbat, acpi, acpi_smbat_driver, acpi_smbat_devclass, 0, 0);
+MODULE_DEPEND(acpi_smbat, acpi, 1, 1, 1);
+
+static int
+acpi_smbat_probe(device_t dev)
+{
+ static char *smbat_ids[] = {"ACPI0001", "ACPI0005", NULL};
+ ACPI_STATUS status;
+
+ if (acpi_disabled("smbat") ||
+ ACPI_ID_PROBE(device_get_parent(dev), dev, smbat_ids) == NULL)
+ return (ENXIO);
+ status = AcpiEvaluateObject(acpi_get_handle(dev), "_EC", NULL, NULL);
+ if (ACPI_FAILURE(status))
+ return (ENXIO);
+
+ device_set_desc(dev, "ACPI Smart Battery");
+ return (0);
+}
+
+static int
+acpi_smbat_attach(device_t dev)
+{
+ struct acpi_smbat_softc *sc;
+ uint32_t base;
+
+ sc = device_get_softc(dev);
+ if (ACPI_FAILURE(acpi_GetInteger(acpi_get_handle(dev), "_EC", &base))) {
+ device_printf(dev, "cannot get EC base address\n");
+ return (ENXIO);
+ }
+ sc->sb_base_addr = (base >> 8) & 0xff;
+
+ /* XXX Only works with one EC, but nearly all systems only have one. */
+ sc->ec_dev = devclass_get_device(devclass_find("acpi_ec"), 0);
+ if (sc->ec_dev == NULL) {
+ device_printf(dev, "cannot find EC device\n");
+ return (ENXIO);
+ }
+
+ timespecclear(&sc->bif_lastupdated);
+ timespecclear(&sc->bst_lastupdated);
+
+ if (acpi_battery_register(dev) != 0) {
+ device_printf(dev, "cannot register battery\n");
+ return (ENXIO);
+ }
+ return (0);
+}
+
+static int
+acpi_smbat_shutdown(device_t dev)
+{
+
+ acpi_battery_remove(dev);
+ return (0);
+}
+
+static int
+acpi_smbat_info_expired(struct timespec *lastupdated)
+{
+ struct timespec curtime;
+
+ ACPI_SERIAL_ASSERT(smbat);
+
+ if (lastupdated == NULL)
+ return (TRUE);
+ if (!timespecisset(lastupdated))
+ return (TRUE);
+
+ getnanotime(&curtime);
+ timespecsub(&curtime, lastupdated);
+ return (curtime.tv_sec < 0 ||
+ curtime.tv_sec > acpi_battery_get_info_expire());
+}
+
+static void
+acpi_smbat_info_updated(struct timespec *lastupdated)
+{
+
+ ACPI_SERIAL_ASSERT(smbat);
+
+ if (lastupdated != NULL)
+ getnanotime(lastupdated);
+}
+
+static int
+acpi_smbus_read_2(struct acpi_smbat_softc *sc, uint8_t addr, uint8_t cmd,
+ uint16_t *ptr)
+{
+ int error, to;
+ UINT64 val;
+
+ ACPI_SERIAL_ASSERT(smbat);
+
+ if (batt_sleep_ms)
+ AcpiOsSleep(batt_sleep_ms);
+
+ val = addr;
+ error = ACPI_EC_WRITE(sc->ec_dev, sc->sb_base_addr + SMBUS_ADDR,
+ val, 1);
+ if (error)
+ goto out;
+
+ val = cmd;
+ error = ACPI_EC_WRITE(sc->ec_dev, sc->sb_base_addr + SMBUS_CMD,
+ val, 1);
+ if (error)
+ goto out;
+
+ val = 0x09; /* | 0x80 if PEC */
+ error = ACPI_EC_WRITE(sc->ec_dev, sc->sb_base_addr + SMBUS_PRTCL,
+ val, 1);
+ if (error)
+ goto out;
+
+ if (batt_sleep_ms)
+ AcpiOsSleep(batt_sleep_ms);
+
+ for (to = SMBUS_TIMEOUT; to != 0; to--) {
+ error = ACPI_EC_READ(sc->ec_dev, sc->sb_base_addr + SMBUS_PRTCL,
+ &val, 1);
+ if (error)
+ goto out;
+ if (val == 0)
+ break;
+ AcpiOsSleep(10);
+ }
+ if (to == 0) {
+ error = ETIMEDOUT;
+ goto out;
+ }
+
+ error = ACPI_EC_READ(sc->ec_dev, sc->sb_base_addr + SMBUS_STS, &val, 1);
+ if (error)
+ goto out;
+ if (val & SMBUS_STS_MASK) {
+ kprintf("%s: AE_ERROR 0x%x\n",
+ __FUNCTION__, (int)(val & SMBUS_STS_MASK));
+ error = EIO;
+ goto out;
+ }
+
+ error = ACPI_EC_READ(sc->ec_dev, sc->sb_base_addr + SMBUS_DATA,
+ &val, 2);
+ if (error)
+ goto out;
+
+ *ptr = val;
+
+out:
+ return (error);
+}
+
+static int
+acpi_smbus_read_multi_1(struct acpi_smbat_softc *sc, uint8_t addr, uint8_t cmd,
+ uint8_t *ptr, uint16_t len)
+{
+ UINT64 val;
+ uint8_t to;
+ int error;
+
+ ACPI_SERIAL_ASSERT(smbat);
+
+ if (batt_sleep_ms)
+ AcpiOsSleep(batt_sleep_ms);
+
+ val = addr;
+ error = ACPI_EC_WRITE(sc->ec_dev, sc->sb_base_addr + SMBUS_ADDR,
+ val, 1);
+ if (error)
+ goto out;
+
+ val = cmd;
+ error = ACPI_EC_WRITE(sc->ec_dev, sc->sb_base_addr + SMBUS_CMD,
+ val, 1);
+ if (error)
+ goto out;
+
+ val = 0x0B /* | 0x80 if PEC */ ;
+ error = ACPI_EC_WRITE(sc->ec_dev, sc->sb_base_addr + SMBUS_PRTCL,
+ val, 1);
+ if (error)
+ goto out;
+
+ if (batt_sleep_ms)
+ AcpiOsSleep(batt_sleep_ms);
+
+ for (to = SMBUS_TIMEOUT; to != 0; to--) {
+ error = ACPI_EC_READ(sc->ec_dev, sc->sb_base_addr + SMBUS_PRTCL,
+ &val, 1);
+ if (error)
+ goto out;
+ if (val == 0)
+ break;
+ AcpiOsSleep(10);
+ }
+ if (to == 0) {
+ error = ETIMEDOUT;
+ goto out;
+ }
+
+ error = ACPI_EC_READ(sc->ec_dev, sc->sb_base_addr + SMBUS_STS, &val, 1);
+ if (error)
+ goto out;
+ if (val & SMBUS_STS_MASK) {
+ kprintf("%s: AE_ERROR 0x%x\n",
+ __FUNCTION__, (int)(val & SMBUS_STS_MASK));
+ error = EIO;
+ goto out;
+ }
+
+ /* get length */
+ error = ACPI_EC_READ(sc->ec_dev, sc->sb_base_addr + SMBUS_BCNT,
+ &val, 1);
+ if (error)
+ goto out;
+ val = (val & 0x1f) + 1;
+
+ bzero(ptr, len);
+ if (len > val)
+ len = val;
+
+ if (batt_sleep_ms)
+ AcpiOsSleep(batt_sleep_ms);
+
+ while (len--) {
+ error = ACPI_EC_READ(sc->ec_dev, sc->sb_base_addr + SMBUS_DATA
+ + len, &val, 1);
+ if (error)
+ goto out;
+
+ ptr[len] = val;
+ if (batt_sleep_ms)
+ AcpiOsSleep(batt_sleep_ms);
+ }
+
+out:
+ return (error);
+}
+
+static int
+acpi_smbat_get_bst(device_t dev, struct acpi_bst *bst)
+{
+ struct acpi_smbat_softc *sc;
+ int error;
+ uint32_t cap_units, factor;
+ int16_t val;
+ uint8_t addr;
+
+ ACPI_SERIAL_BEGIN(smbat);
+
+ addr = SMBATT_ADDRESS;
+ error = ENXIO;
+ sc = device_get_softc(dev);
+
+ if (!acpi_smbat_info_expired(&sc->bst_lastupdated)) {
+ error = 0;
+ goto out;
+ }
+
+ if (acpi_smbus_read_2(sc, addr, SMBATT_CMD_BATTERY_MODE, &val))
+ goto out;
+ if (val & SMBATT_BM_CAPACITY_MODE) {
+ factor = 10;
+ cap_units = ACPI_BIF_UNITS_MW;
+ } else {
+ factor = 1;
+ cap_units = ACPI_BIF_UNITS_MA;
+ }
+
+ /* get battery status */
+ if (acpi_smbus_read_2(sc, addr, SMBATT_CMD_BATTERY_STATUS, &val))
+ goto out;
+
+ sc->bst.state = 0;
+ if (val & SMBATT_BS_DISCHARGING)
+ sc->bst.state |= ACPI_BATT_STAT_DISCHARG;
+
+ if (val & SMBATT_BS_REMAINING_CAPACITY_ALARM)
+ sc->bst.state |= ACPI_BATT_STAT_CRITICAL;
+
+ /*
+ * If the rate is negative, it is discharging. Otherwise,
+ * it is charging.
+ */
+ if (acpi_smbus_read_2(sc, addr, SMBATT_CMD_CURRENT, &val))
+ goto out;
+
+ if (val > 0) {
+ sc->bst.rate = val * factor;
+ sc->bst.state &= ~SMBATT_BS_DISCHARGING;
+ sc->bst.state |= ACPI_BATT_STAT_CHARGING;
+ } else if (val < 0)
+ sc->bst.rate = (-val) * factor;
+ else
+ sc->bst.rate = 0;
+
+ if (acpi_smbus_read_2(sc, addr, SMBATT_CMD_REMAINING_CAPACITY, &val))
+ goto out;
+ sc->bst.cap = val * factor;
+
+ if (acpi_smbus_read_2(sc, addr, SMBATT_CMD_VOLTAGE, &val))
+ goto out;
+ sc->bst.volt = val;
+
+ acpi_smbat_info_updated(&sc->bst_lastupdated);
+ error = 0;
+
+out:
+ if (error == 0)
+ memcpy(bst, &sc->bst, sizeof(sc->bst));
+ ACPI_SERIAL_END(smbat);
+ return (error);
+}
+
+static int
+acpi_smbat_get_bif(device_t dev, struct acpi_bif *bif)
+{
+ struct acpi_smbat_softc *sc;
+ int error;
+ uint32_t factor;
+ uint16_t val;
+ uint8_t addr;
+
+ ACPI_SERIAL_BEGIN(smbat);
+
+ addr = SMBATT_ADDRESS;
+ error = ENXIO;
+ sc = device_get_softc(dev);
+
+ if (!acpi_smbat_info_expired(&sc->bif_lastupdated)) {
+ error = 0;
+ goto out;
+ }
+
+ if (acpi_smbus_read_2(sc, addr, SMBATT_CMD_BATTERY_MODE, &val))
+ goto out;
+ if (val & SMBATT_BM_CAPACITY_MODE) {
+ factor = 10;
+ sc->bif.units = ACPI_BIF_UNITS_MW;
+ } else {
+ factor = 1;
+ sc->bif.units = ACPI_BIF_UNITS_MA;
+ }
+
+ if (acpi_smbus_read_2(sc, addr, SMBATT_CMD_DESIGN_CAPACITY, &val))
+ goto out;
+ sc->bif.dcap = val * factor;
+
+ if (acpi_smbus_read_2(sc, addr, SMBATT_CMD_FULL_CHARGE_CAPACITY, &val))
+ goto out;
+ sc->bif.lfcap = val * factor;
+ sc->bif.btech = 1; /* secondary (rechargeable) */
+
+ if (acpi_smbus_read_2(sc, addr, SMBATT_CMD_DESIGN_VOLTAGE, &val))
+ goto out;
+ sc->bif.dvol = val;
+
+ sc->bif.wcap = sc->bif.dcap / 10;
+ sc->bif.lcap = sc->bif.dcap / 10;
+
+ sc->bif.gra1 = factor; /* not supported */
+ sc->bif.gra2 = factor; /* not supported */
+
+ if (acpi_smbus_read_multi_1(sc, addr, SMBATT_CMD_DEVICE_NAME,
+ sc->bif.model, sizeof(sc->bif.model)))
+ goto out;
+
+ if (acpi_smbus_read_2(sc, addr, SMBATT_CMD_SERIAL_NUMBER, &val))
+ goto out;
+ ksnprintf(sc->bif.serial, sizeof(sc->bif.serial), "0x%04x", val);
+
+ if (acpi_smbus_read_multi_1(sc, addr, SMBATT_CMD_DEVICE_CHEMISTRY,
+ sc->bif.type, sizeof(sc->bif.type)))
+ goto out;
+
+ if (acpi_smbus_read_multi_1(sc, addr, SMBATT_CMD_MANUFACTURER_DATA,
+ sc->bif.oeminfo, sizeof(sc->bif.oeminfo)))
+ goto out;
+
+ /* XXX check if device was replugged during read? */
+
+ acpi_smbat_info_updated(&sc->bif_lastupdated);
+ error = 0;
+
+out:
+ if (error == 0)
+ memcpy(bif, &sc->bif, sizeof(sc->bif));
+ ACPI_SERIAL_END(smbat);
+ return (error);
+}
--- /dev/null
+/*-
+ * Copyright (c) 2005 Hans Petter Selasky
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD: src/sys/dev/acpica/acpi_smbus.h,v 1.1 2005/10/23 00:20:13 njl Exp $
+ */
+
+#ifndef _ACPI_SMBUS_H_
+#define _ACPI_SMBUS_H_
+
+/*
+ * System Management Bus register offsets
+ */
+#define SMBUS_PRTCL 0
+#define SMBUS_STS 1
+#define SMBUS_STS_MASK 0x1f
+#define SMBUS_ADDR 2
+#define SMBUS_CMD 3
+#define SMBUS_DATA 4 /* 32 bytes */
+#define SMBUS_BCNT 36
+#define SMBUS_ALRM_ADDR 37
+#define SMBUS_ALRM_DATA 38 /* 2 bytes */
+
+/*
+ * Smart-Battery commands and definitions
+ */
+
+/* Base address */
+#define SMBATT_ADDRESS 0x16
+
+
+/* access: READ WRITE WORD */
+#define SMBATT_CMD_MANUFACTURER_ACCESS 0
+
+/*
+ * access: READ WRITE WORD
+ * unit : mAh (CAPACITY_MODE=0) or 10 mWh (CAPACITY_MODE=1)
+ * range : 0 .. 65535 inclusively
+ */
+#define SMBATT_CMD_REMAINING_CAPACITY_ALARM 0x1
+
+/*
+ * access: READ WRITE WORD
+ * unit : minutes
+ * range : 0 .. 65535 inclusively
+ */
+#define SMBATT_CMD_REMAINING_TIME_ALARM 0x2
+
+/* access: READ WRITE WORD */
+#define SMBATT_CMD_BATTERY_MODE 0x3
+
+#define SMBATT_BM_INTERNAL_CHARGE_CONTROLLER (1 << 0) /* READ */
+#define SMBATT_BM_PRIMARY_BATTERY_SUPPORT (1 << 1) /* READ */
+#define SMBATT_BM_CONDITION_FLAG (1 << 7) /* READ */
+#define SMBATT_BM_CHARGE_CONTROLLER_ENABLED (1 << 8) /* READ WRITE */
+#define SMBATT_BM_PRIMARY_BATTERY (1 << 9) /* READ WRITE */
+#define SMBATT_BM_ALARM_MODE (1 << 13) /* READ WRITE */
+#define SMBATT_BM_CHARGER_MODE (1 << 14) /* READ WRITE */
+#define SMBATT_BM_CAPACITY_MODE (1 << 15) /* READ WRITE */
+
+/*
+ * access: READ WRITE WORD
+ * unit : mAh (CAPACITY_MODE=0) or 10 mWh (CAPACITY_MODE=1)
+ * range : signed WORD
+ */
+#define SMBATT_CMD_AT_RATE 0x4
+
+/*
+ * access: READ WORD
+ * unit : minutes
+ * range : 0 .. 65534, 65535 has special meaning
+ */
+#define SMBATT_CMD_AT_RATE_TIME_TO_FULL 0x5
+
+/*
+ * access: READ WORD
+ * unit : minutes
+ * range : 0 .. 65534, 65535 has special meaning
+ */
+#define SMBATT_CMD_AT_RATE_TIME_TO_EMPTY 0x6
+
+/*
+ * access: READ WORD */
+#define SMBATT_CMD_AT_RATE_OK 0x7
+
+/*
+ * access: READ WORD
+ * unit : 0.1 degrees Kelvin
+ * range : 0 .. 6553.5 Kelvin
+ */
+#define SMBATT_CMD_TEMPERATURE 0x8
+
+/*
+ * access: READ WORD
+ * unit : mV
+ * range : 0 .. 65535 inclusively
+ */
+#define SMBATT_CMD_VOLTAGE 0x9
+
+/*
+ * access: READ WORD
+ * unit : mA
+ * range : signed WORD
+ */
+#define SMBATT_CMD_CURRENT 0xa
+
+/*
+ * access: READ WORD
+ * unit : mA
+ * range : signed WORD
+ */
+#define SMBATT_CMD_AVERAGE_CURRENT 0xb
+
+/*
+ * access: READ WORD
+ * unit : percent
+ * range : 0..100 inclusively
+ */
+#define SMBATT_CMD_MAX_ERROR 0xc
+
+/*
+ * access: READ WORD
+ * unit : percent
+ * range : 0..100 inclusively
+ */
+#define SMBATT_CMD_RELATIVE_STATE_OF_CHARGE 0xd
+
+/*
+ * access: READ WORD
+ * unit : percent
+ * range : 0..100 inclusively
+ */
+#define SMBATT_CMD_ABSOLUTE_STATE_OF_CHARGE 0xe
+
+/*
+ * access: READ WORD
+ * unit : mAh (CAPACITY_MODE=0) or 10 mWh (CAPACITY_MODE=1)
+ * range : 0..65535 inclusively
+ */
+#define SMBATT_CMD_REMAINING_CAPACITY 0xf
+
+/*
+ * access: READ WORD
+ * unit : mAh (CAPACITY_MODE=0) or 10 mWh (CAPACITY_MODE=1)
+ * range : 0..65535 inclusively
+ */
+#define SMBATT_CMD_FULL_CHARGE_CAPACITY 0x10
+
+/*
+ * access: READ WORD
+ * unit : minutes
+ * range : 0..65534, 65535 is reserved
+ */
+#define SMBATT_CMD_RUN_TIME_TO_EMPTY 0x11
+
+/*
+ * access: READ WORD
+ * unit : minutes
+ * range : 0..65534, 65535 is reserved
+ */
+#define SMBATT_CMD_AVERAGE_TIME_TO_EMPTY 0x12
+
+/*
+ * access: READ WORD
+ * unit : minutes
+ * range : 0..65534, 65535 is reserved
+ */
+#define SMBATT_CMD_AVERAGE_TIME_TO_FULL 0x13
+
+/*
+ * access: READ WORD
+ * unit : mA
+ */
+#define SMBATT_CMD_CHARGING_CURRENT 0x14
+
+/*
+ * access: READ WORD
+ * unit : mV
+ * range : 0 .. 65534, 65535 reserved
+ */
+#define SMBATT_CMD_CHARGING_VOLTAGE 0x15
+
+/* access: READ WORD */
+#define SMBATT_CMD_BATTERY_STATUS 0x16
+
+/* alarm bits */
+#define SMBATT_BS_OVER_CHARGED_ALARM (1 << 15)
+#define SMBATT_BS_TERMINATE_CHARGE_ALARM (1 << 14)
+#define SMBATT_BS_RESERVED_2 (1 << 13)
+#define SMBATT_BS_OVER_TEMP_ALARM (1 << 12)
+#define SMBATT_BS_TERMINATE_DISCHARGE_ALARM (1 << 11)
+#define SMBATT_BS_RESERVED_1 (1 << 10)
+#define SMBATT_BS_REMAINING_CAPACITY_ALARM (1 << 9)
+#define SMBATT_BS_REMAINING_TIME_ALARM (1 << 8)
+
+/* status bits */
+#define SMBATT_BS_INITIALIZED (1 << 7)
+#define SMBATT_BS_DISCHARGING (1 << 6)
+#define SMBATT_BS_FULLY_CHARGED (1 << 5)
+#define SMBATT_BS_FULLY_DISCHARGED (1 << 4)
+
+/* error bits */
+#define SMBATT_BS_GET_ERROR(x) ((x) & 0xf)
+#define SMBATT_BS_ERROR_OK 0
+#define SMBATT_BS_ERROR_BUSY 1
+#define SMBATT_BS_ERROR_RESERVED_COMMAND 2
+#define SMBATT_BS_ERROR_UNSUPPORTED_COMMAND 3
+#define SMBATT_BS_ERROR_ACCESS_DENIED 4
+#define SMBATT_BS_ERROR_OVER_UNDER_FLOW 5
+#define SMBATT_BS_ERROR_BADSIZE 6
+#define SMBATT_BS_ERROR_UNKNOWN 7
+
+/*
+ * access: READ WORD
+ * unit : cycle(s)
+ * range : 0 .. 65534, 65535 reserved
+ */
+#define SMBATT_CMD_CYCLE_COUNT 0x17
+
+/*
+ * access: READ WORD
+ * unit : mAh (CAPACITY_MODE=0) or 10 mWh (CAPACITY_MODE=1)
+ * range : 0..65535 inclusively
+ */
+#define SMBATT_CMD_DESIGN_CAPACITY 0x18
+
+/*
+ * access: READ WORD
+ * unit : mV
+ * range : 0..65535 mV
+ */
+#define SMBATT_CMD_DESIGN_VOLTAGE 0x19
+
+/* access: READ WORD */
+#define SMBATT_CMD_SPECIFICATION_INFO 0x1a
+
+#define SMBATT_SI_GET_REVISION(x) (((x) >> 0) & 0xf)
+#define SMBATT_SI_GET_VERSION(x) (((x) >> 4) & 0xf)
+#define SMBATT_SI_GET_VSCALE(x) (((x) >> 8) & 0xf)
+#define SMBATT_SI_GET_IPSCALE(x) (((x) >> 12) & 0xf)
+
+/* access: READ WORD */
+#define SMBATT_CMD_MANUFACTURE_DATE 0x1b
+
+#define SMBATT_MD_GET_DAY(x) (((x) >> 0) & 0x1f)
+#define SMBATT_MD_GET_MONTH(x) (((x) >> 5) & 0xf)
+#define SMBATT_MD_GET_YEAR(x) ((((x) >> 9) & 0x7f) + 1980)
+
+/* access: READ WORD */
+#define SMBATT_CMD_SERIAL_NUMBER 0x1c
+
+/* access: READ BLOCK */
+#define SMBATT_CMD_MANUFACTURER_NAME 0x20
+
+/* access: READ BLOCK */
+#define SMBATT_CMD_DEVICE_NAME 0x21
+
+/* access: READ BLOCK */
+#define SMBATT_CMD_DEVICE_CHEMISTRY 0x22
+
+/* access: READ BLOCK */
+#define SMBATT_CMD_MANUFACTURER_DATA 0x23
+
+#endif /* !_ACPI_SMBUS_H_ */
mihaic's projects / dragonfly.git / commitdiff