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HPET::Comparator::ConfigAndCapabilitiesRegister Union Reference

Access Helper for comparators configuration register. More...

#include <machine/hpet.h>

Public Member Functions

 ConfigAndCapabilitiesRegister (const uint64_t value)
 Constructor. More...
 

Public Attributes

struct {
uint64_t __pad0__: 1
 
TriggerMode trigger_mode: 1
 Generate edge or level triggered interrupts.
 
uint64_t interrupt_status: 1
 Enable (1) or disable (0) interrupts.
 
ComparatorMode comparator_mode: 1
 periodic or one shot mode
 
uint64_t periodic_capable: 1
 Is timer capable of periodic mode (read-only)
 
CounterSize counter_size: 1
 32- or 64bit size (read-only)
 
uint64_t set_value: 1
 if set to 1, the accumulator can be set in software
 
uint64_t __pad1__: 1
 
uint64_t small_mode: 1
 if set to 1 while supporting 64bit size, the timer runs in 32-bit mode
 
uint64_t ioapic_slot: 5
 I/O-APIC slot (must be set in mask supported_ioapic_slots)
 
uint64_t fsb_interrupt_enabled: 1
 if set to 1, the timer will use FSB interrupt mapping
 
uint64_t fsb_interrupt_delivery: 1
 if set to 1, the timer supports FSB interrupt mapping (read-only)
 
uint64_t __pad2__: 16
 
uint64_t supported_ioapic_slots: 32
 bit mask containing the supported I/O APIC slots (read-only)
 
}; 
 
uint64_t value
 

Detailed Description

Access Helper for comparators configuration register.

See also
IA-PC HPET - 2.3.8 Timer N Configuration and Capabilities Register

Constructor & Destructor Documentation

◆ ConfigAndCapabilitiesRegister()

HPET::Comparator::ConfigAndCapabilitiesRegister::ConfigAndCapabilitiesRegister ( const uint64_t  value)
inlineexplicit

Constructor.

Note
Only perform 32- or 64-bit access by using a temporary copy for modifying its contents.

The documentation for this union was generated from the following file: