hpet.h File Reference
The High Precision Event Timer (HPET). More...
#include "types.h"
Include dependency graph for hpet.h: This graph shows which files directly or indirectly include this file:Classes | |
| struct | HPET::Comparator::ConfigAndCapabilitiesRegister.__unnamed40__ |
Namespaces | |
| namespace | HPET |
| Abstraction of the HPET existing in "modern" computers (since ~2005) | |
Enumerations | |
| enum | HPET::CounterSize { SIZE_32BIT = 0x0 , SIZE_64BIT = 0x1 } |
| Size of the global counter and the comparators. | |
Functions | |
| bool | HPET::init () |
| Initializes the HPET system from ACPI Table. More... | |
| void | HPET::delay (uint64_t usecs) |
| Delays the caller's execution by approx. More... | |
| bool | HPET::isEnabled () |
| Checks whether the HPET system is enabled. More... | |
| void | HPET::enable () |
| Activate the HPET system. More... | |
| void | HPET::disable () |
| Deactivate the HPET system. More... | |
| void | HPET::reset () |
| Reset the global counter to zero. More... | |
| Comparator * | HPET::getComparator (size_t n) |
Returns a pointer to the nth timer comparator. More... | |
| size_t | HPET::countComparators () |
| Retrieve the number of HPET comparators. More... | |
Detailed Description
Class Documentation
| struct HPET::Comparator::ConfigAndCapabilitiesRegister.__unnamed40__ |
| Class Members | ||
|---|---|---|
| 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) |