From 0b0bcc80bf689592dcb3236eed3e166d82cd7802 Mon Sep 17 00:00:00 2001
From: Daniel Friesel <derf@finalrewind.org>
Date: Sun, 26 Dec 2021 16:05:02 +0100
Subject: add basic MAX44006 driver

---
 include/driver/max44006.h | 80 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 include/driver/max44006.h

(limited to 'include/driver')

diff --git a/include/driver/max44006.h b/include/driver/max44006.h
new file mode 100644
index 0000000..ae5ad12
--- /dev/null
+++ b/include/driver/max44006.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2021 Daniel Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+#ifndef MAX44006_H
+#define MAX44006_H
+
+#include <stdint.h>
+
+/**
+ * Driver for MAX44006 RGB, IR, and Temperature Sensor.
+ * Does not support interrupts.
+ */
+class MAX44006 {
+	public:
+
+		enum registers {
+			interruptStatusReg = 0x00,
+			mainConfigReg = 0x01,
+			ambientConfigReg = 0x02,
+		};
+
+		enum interruptStatus {
+			AMBINTS = 0b00000001,
+			PWRON   = 0b00000010,
+			SHDN    = 0b00001000,
+			RESET   = 0b00010000,
+		};
+
+		enum mainConfig {
+			AMBINTE   = 0b00000001,
+			AMBSEL_00 = 0b00000000,
+			AMBSEL_01 = 0b00000100,
+			AMBSEL_10 = 0b00001000,
+			AMBSEL_11 = 0b00001100,
+			MODE_00   = 0b00000000,
+			MODE_01   = 0b00010000,
+			MODE_10   = 0b00100000,
+		};
+
+		enum ambientConfig {
+			AMBPGA_00  = 0b00000000,
+			AMBPGA_01  = 0b00000001,
+			AMBPGA_10  = 0b00000010,
+			AMBPGA_11  = 0b00000011,
+			AMBTIM_000 = 0b00000000,
+			AMBTIM_001 = 0b00000100,
+			AMBTIM_010 = 0b00001000,
+			AMBTIM_011 = 0b00001100,
+			AMBTIM_100 = 0b00010000,
+			TEMPEN     = 0b00100000,
+			COMPPEN    = 0b01000000,
+			TRIm       = 0b10000000,
+		};
+
+	private:
+		MAX44006(const MAX44006 &copy);
+		unsigned char const address;
+		unsigned char txbuf[2];
+		unsigned char rxbuf[10];
+
+		unsigned char ambtim;
+		unsigned char ambpga;
+
+		uint16_t clear, red, green, blue, ir;
+
+	public:
+
+		MAX44006(unsigned char const addr = 0x45) : address(addr) {}
+
+		uint8_t init();
+
+		uint16_t getTemperature();
+		bool getLight(float *red, float *green, float *blue, float *clear, float *ir);
+};
+
+extern MAX44006 max44006;
+
+#endif
-- 
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