042aefc4ea
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41319 a95241bf-73f2-0310-859d-f6bbb57e9c96
90 lines
1.7 KiB
C
90 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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// CPU Frequence:
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// get a list of freq_info, the list is terminated with a element with
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// frequency = 0
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GET_CPU_FREQ_STATES = B_DEVICE_OP_CODES_END + 20005,
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// get and set a freq_info
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GET_CURENT_CPU_FREQ_STATE,
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SET_CPU_FREQ_STATE,
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// start watching for frequency changes, ioctl blocks until the frequency
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// has changed
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WATCH_CPU_FREQ,
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// stop all watching ioctl, ioctl return B_ERROR
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STOP_WATCHING_CPU_FREQ,
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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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// CPU Frequence:
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// magic id returned by IDENTIFY_DEVICE
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const uint32 kMagicFreqID = 48921;
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#define MAX_CPU_FREQUENCY_STATES 10
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typedef struct {
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uint16 frequency; // [Mhz]
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uint16 volts;
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uint16 id;
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int power;
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} freq_info;
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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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typedef struct {
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int state;
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int current_rate;
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int capacity;
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int voltage;
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} acpi_battery_info;
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typedef struct {
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int power_unit;
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int design_capacity;
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int last_full_charge;
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int technology;
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int design_voltage;
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int design_capacity_warning;
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int design_capacity_low;
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int capacity_granularity_1;
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int capacity_granularity_2;
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char model_number[32];
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char serial_number[32];
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char type[32];
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char oem_info[32];
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} acpi_extended_battery_info;
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#endif
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