ambient sensor: more zones for testing

diff --git a/ambient.c b/ambient.c
index e91c1ae2217b7abdcd25f8c0dc0b4ce010095300..e14e0243fb628228e433240bbc7c96260ac82236 100644 (file)
--- a/ambient.c
+++ b/ambient.c
@@ -3,11 +3,11 @@
 #include "lights.h"
 
 static uint16_t ambient_val;
-unsigned char ambient_zone;
-unsigned char ambient_zone_set;
+volatile unsigned char ambient_zone;
+static unsigned char ambient_zone_set;
 
 static uint16_t ambient_zones[] = {
-       1, 2, 10, 20, 256
+       0x10, 0x18, 0x20, 0x40, 0x100, 0x400, 0x1000, 0x4000, 0xffff
 };
 #define N_AMBIENT_ZONES (sizeof(ambient_zones)/sizeof(ambient_zones[0]))
 
@@ -31,21 +31,18 @@ void ambient_adc(uint16_t adcval)
 
        if (!ambient_zone_set)
                ambient_val = adcval << 4;
-
-       // running sum
-       ambient_val += adcval - (ambient_val >> 4);
+       else // running sum
+               ambient_val += adcval - (ambient_val >> 4);
 
        newzone = 0;
        while (newzone < N_AMBIENT_ZONES-1
-               && ambient_zones[newzone] <= ambient_val)
+               && ambient_zones[newzone] < ambient_val)
                newzone++;
 
        if (!ambient_zone_set || newzone != ambient_zone) {
                ambient_zone = newzone;
-               ambient_zone_changed();
                ambient_zone_set = 1;
+               ambient_zone_changed();
        }
 }
 
-
-