MAX44006: Adjust for AMBTIM setting

1 files changed, 14 insertions, 0 deletions

diff --git a/src/driver/max44006.cc b/src/driver/max44006.cc
index 50eaf0f..b0df238 100644
--- a/src/driver/max44006.cc
+++ b/src/driver/max44006.cc
@@ -59,6 +59,7 @@ uint16_t MAX44006::getTemperature()
 		return 0;
 	}
 
+	// independent of AMBPGA setting, depends on AMBTIM
 	return (((uint16_t)rxbuf[0] << 8) + rxbuf[1]);
 }
 
@@ -80,6 +81,19 @@ bool MAX44006::getLight(float *red, float *green, float *blue, float *clear, flo
 		multiplier = 0.512;
 	}
 
+	if ((ambientConfig & AMBTIM_MASK) == AMBTIM_001) {
+		multiplier *= 4;
+	}
+	else if ((ambientConfig & AMBTIM_MASK) == AMBTIM_010) {
+		multiplier *= 16;
+	}
+	else if ((ambientConfig & AMBTIM_MASK) == AMBTIM_011) {
+		multiplier *= 64;
+	}
+	else if ((ambientConfig & AMBTIM_MASK) == AMBTIM_100) {
+		multiplier *= 0.25;
+	}
+
 	*clear = (float)(((uint16_t)rxbuf[0] << 8) + rxbuf[1]) * multiplier;
 	*red   = (float)(((uint16_t)rxbuf[2] << 8) + rxbuf[3]) * multiplier;
 	*green = (float)(((uint16_t)rxbuf[4] << 8) + rxbuf[5]) * multiplier;