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authorDmitry Osipenko <digetx@gmail.com>2016-10-24 16:26:51 +0100
committerPeter Maydell <peter.maydell@linaro.org>2016-10-24 16:26:51 +0100
commitef0a9984aa0c3c8f440bbf488f2c14ccddd241ea (patch)
tree82a30cc8742b41e65be6f13edc8b23205b0c9efc /include
parent293130aa91e9fc319beca1d8b1a9ac8c0cb33f75 (diff)
downloadqemu-ef0a9984aa0c3c8f440bbf488f2c14ccddd241ea.tar.gz
hw/ptimer: Add "continuous trigger" policy
Currently, periodic timer that has load = delta = 0 performs trigger on timer reload and stops, printing a "period zero" error message. Introduce new policy that makes periodic timer to continuously trigger with a period interval in case of load = 0. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Message-id: 632b23dd11055d9bd5e338d66b38fac0bd51462e.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.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/hw/ptimer.h b/include/hw/ptimer.h
index 03441cbc22..b2fb4f9864 100644
--- a/include/hw/ptimer.h
+++ b/include/hw/ptimer.h
@@ -39,6 +39,10 @@
* around. */
#define PTIMER_POLICY_WRAP_AFTER_ONE_PERIOD (1 << 0)
+/* Running periodic timer that has counter = limit = 0 would continuously
+ * re-trigger every period. */
+#define PTIMER_POLICY_CONTINUOUS_TRIGGER (1 << 1)
+
/* ptimer.c */
typedef struct ptimer_state ptimer_state;
typedef void (*ptimer_cb)(void *opaque);