Oleksandr Tymoshenko 0c093a7055 Fix event timer on Raspberry Pi
- Disable interrupt when updating compare value in order to
   make this operation atomical

- Increase minimum period for event timer. Systimer on BCM2835
    is compare timer, so if minimum period is too small it might
    be less then fraction of time between "read current value" and
    "set compare timer" operations. It means that when timer is armed
    actual counter value is more then compare value and it will take
    whole cycle (~32sec for 1MHz timer) to fire interrupt.

Submitted by:	Daisuke Aoyama <aoyama at peach.ne.jp>
2012-12-28 01:38:43 +00:00
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2012-12-28 01:38:43 +00:00
2012-10-10 08:36:38 +00:00
2012-11-01 04:07:08 +00:00
2012-12-27 08:10:58 +00:00
2012-10-10 08:36:38 +00:00
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