hal/ia32: Implement HP timer #476
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- Reason: The old name `when` is misleadig, since it is time to wait and not a fixed moment in time. Changed it to `waitUs`. JIRA: RTOS-530
- Move code reading and writing to Local APIC to its own functions. - Add detection of Local APIC Timer's frequency. - Make Local APIC timer the default timer for scheduling JIRA: RTOS-530
JIRA: RTOS-530
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Description
Add support for 2 timers that may be available in ia32: Local APIC Timer and High Precision Event Timers (HPET). If they are available, they will be used instead of old Programmable Interval Timer (PIT).
Motivation and Context
This change makes it possible to sleep times shorter than 10ms.
Types of changes
How Has This Been Tested?
Checklist:
Special treatment