81 lines
1.7 KiB
C
81 lines
1.7 KiB
C
/*
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* Copyright 2004-2011, Haiku, Inc. All rights reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef POWER_MANAGMENT_H
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#define POWER_MANAGMENT_H
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#include <Drivers.h>
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// io controls
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enum {
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// ioctl response with kMagicFreqID
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IDENTIFY_DEVICE = B_DEVICE_OP_CODES_END + 20001,
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GET_BATTERY_INFO,
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GET_EXTENDED_BATTERY_INFO,
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WATCH_BATTERY,
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STOP_WATCHING_BATTERY
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};
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// ACPI Battery:
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// magic id returned by IDENTIFY_DEVICE
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const uint32 kMagicACPIBatteryID = 17822;
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// Our known battery states
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#define BATTERY_DISCHARGING 0x01
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#define BATTERY_CHARGING 0x02
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#define BATTERY_CRITICAL_STATE 0x04
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#define BATTERY_MAX_STRING_LENGTH 32
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typedef struct {
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uint32 state;
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uint32 current_rate;
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uint32 capacity;
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uint32 voltage;
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} acpi_battery_info;
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typedef struct {
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uint32 power_unit;
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#define ACPI_BATTERY_UNIT_MW 0
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#define ACPI_BATTERY_UNIT_MA 1
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uint32 design_capacity;
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uint32 last_full_charge;
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uint32 technology;
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uint32 design_voltage;
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uint32 design_capacity_warning;
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uint32 design_capacity_low;
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uint32 capacity_granularity_1;
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uint32 capacity_granularity_2;
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char model_number[BATTERY_MAX_STRING_LENGTH];
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char serial_number[BATTERY_MAX_STRING_LENGTH];
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char type[BATTERY_MAX_STRING_LENGTH];
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char oem_info[BATTERY_MAX_STRING_LENGTH];
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// ACPI 4.0 and later
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uint16 revision;
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#define ACPI_BATTERY_REVISION_0 0
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#define ACPI_BATTERY_REVISION_1 1
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#define ACPI_BATTERY_REVISION_BIF 0xffff
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uint32 cycles;
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uint32 accuracy;
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uint32 max_sampling_time;
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uint32 min_sampling_time;
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uint32 max_average_interval;
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uint32 min_average_interval;
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// ACPI 6.0 and later
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uint32 swapping_capability;
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#define ACPI_BATTERY_SWAPPING_NO 0
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#define ACPI_BATTERY_SWAPPING_COLD 1
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#define ACPI_BATTERY_SWAPPING_HOT 2
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} acpi_extended_battery_info;
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#endif
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