diff options
| author | Dmitry Osipenko | 2016-10-24 17:26:51 +0200 |
|---|---|---|
| committer | Peter Maydell | 2016-10-24 17:26:51 +0200 |
| commit | 22471b8a0f1262192fb3698bd2ea1080d9176e6a (patch) | |
| tree | ecde2662e9b8c848b665941b7bac900acff3baf2 /include | |
| parent | tests: ptimer: Add tests for "continuous trigger" policy (diff) | |
| download | qemu-22471b8a0f1262192fb3698bd2ea1080d9176e6a.tar.gz qemu-22471b8a0f1262192fb3698bd2ea1080d9176e6a.tar.xz qemu-22471b8a0f1262192fb3698bd2ea1080d9176e6a.zip | |
hw/ptimer: Add "no immediate trigger" policy
Performing trigger on setting (or starting to run with) counter = 0 could
be a wrong behaviour for some of the timers, provide "no immediate trigger"
policy to maintain correct behaviour for such timers.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Message-id: 72c0319cf2ec599f22397b7da280c06c34dc40dd.1475421224.git.digetx@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/ptimer.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/hw/ptimer.h b/include/hw/ptimer.h index b2fb4f9864..911cc11bac 100644 --- a/include/hw/ptimer.h +++ b/include/hw/ptimer.h @@ -43,6 +43,10 @@ * re-trigger every period. */ #define PTIMER_POLICY_CONTINUOUS_TRIGGER (1 << 1) +/* Starting to run with/setting counter to "0" won't trigger immediately, + * but after a one period for both oneshot and periodic modes. */ +#define PTIMER_POLICY_NO_IMMEDIATE_TRIGGER (1 << 2) + /* ptimer.c */ typedef struct ptimer_state ptimer_state; typedef void (*ptimer_cb)(void *opaque); |