restructuring

F1:F103/SI7005_HTU21D/htu21d.h

@@ -0,0 +1,42 @@
+/*
+ * This file is part of the HTU21D project.
+ * Copyright 2021 Edward V. Emelianov <edward.emelianoff@gmail.com>.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+#ifndef HTU21D_H__
+
+#include <stm32f1.h>
+
+typedef enum{
+    HTU21D_BUSY,        // measurement in progress
+    HTU21D_ERR,         // error in I2C
+    HTU21D_RELAX,       // relaxed state
+    HTU21D_TRDY,        // data ready - can get it
+    HTU21D_HRDY
+} HTU21D_status;
+
+HTU21D_status HTU21D_get_status();
+
+void HTU21D_setup();
+int HTU21D_read_ID(uint8_t *devid);
+int HTU21D_cmdT();
+int HTU21D_cmdH();
+void HTU21D_process();
+int32_t HTU21D_getT();
+uint32_t HTU21D_getH();
+
+#define HTU21D_H__
+#endif // HTU21D_H__