altos: Add fast-timer API. Use for quadrature and button drivers

[fw/altos] / src / core / ao_debounce.h

diff --git a/src/core/ao_debounce.h b/src/core/ao_debounce.h
index ebe290e1f2eba691428b5b21be4d7a0d8b44aaf4..19c620f56b879daa108259cc2ccba11ef85ea5ac 100644 (file)
--- a/src/core/ao_debounce.h
+++ b/src/core/ao_debounce.h
@@ -22,13 +22,16 @@ struct ao_debounce {
        struct ao_debounce      *next;
 
        /* time that pin value must be stable before accepting */
-       int8_t                  hold;
+       uint8_t                 hold;
 
        /* last value reported to app; don't report it twice */
        uint8_t                 value;
 
+       /* current value received from pins */
+       uint8_t                 current;
+
        /* current count of intervals pin value has been stable */
-       int8_t                  count;
+       uint8_t                 count;
 
        /* This pin is running */
        uint8_t                 running;
@@ -40,6 +43,22 @@ struct ao_debounce {
        void                    (*_set)(struct ao_debounce *debounce, uint8_t value);
 };
 
+static inline void
+ao_debounce_config(struct ao_debounce *debounce,
+                  uint8_t (*_get)(struct ao_debounce *debounce),
+                  void (*_set)(struct ao_debounce *debounce, uint8_t value),
+                  uint8_t hold)
+{
+       debounce->next = 0;
+       debounce->hold = hold;
+       debounce->value = 0xff;
+       debounce->current = 0xff;
+       debounce->count = 0;
+       debounce->running = 0;
+       debounce->_get = _get;
+       debounce->_set = _set;
+}
+
 void
 _ao_debounce_start(struct ao_debounce *debounce);
 
@@ -49,4 +68,7 @@ _ao_debounce_stop(struct ao_debounce *debounce);
 void
 ao_debounce_init(void);
 
+void
+ao_debounce_dump(void);
+
 #endif /* _AO_DEBOUNCE_H_ */