Diff: Drivers/MAX30205/MAX30205.cpp

Revision:

1:f60eafbf009a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Drivers/MAX30205/MAX30205.cpp	Wed Apr 10 14:56:25 2019 +0300
@@ -0,0 +1,225 @@
+/*******************************************************************************
+ * Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
+ * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Except as contained in this notice, the name of Maxim Integrated
+ * Products, Inc. shall not be used except as stated in the Maxim Integrated
+ * Products, Inc. Branding Policy.
+ *
+ * The mere transfer of this software does not imply any licenses
+ * of trade secrets, proprietary technology, copyrights, patents,
+ * trademarks, maskwork rights, or any other form of intellectual
+ * property whatsoever. Maxim Integrated Products, Inc. retains all
+ * ownership rights.
+ *******************************************************************************
+ */
+ 
+ 
+#include "MAX30205.h"
+
+
+//******************************************************************************
+MAX30205::MAX30205(I2C *i2c, uint8_t slaveAddress):
+m_i2c(i2c), m_writeAddress(slaveAddress << 1), 
+m_readAddress((slaveAddress << 1) | 1)
+{
+
+}
+
+
+//******************************************************************************
+MAX30205::~MAX30205(void) 
+{
+  //empty block
+}
+
+
+
+
+//******************************************************************************
+int32_t MAX30205::readTemperature(uint16_t &value) 
+{
+  return readRegister(MAX30205::Temperature, value);
+}
+
+
+//******************************************************************************
+int32_t MAX30205::readConfiguration(Configuration_u &config)
+{
+    uint16_t data;
+    
+    int32_t result = readRegister(MAX30205::Configuration, data);
+    if(result == 0)
+    {
+        config.all = (0x00FF & data);
+    }
+    
+    return result;
+    
+}
+
+
+//******************************************************************************    
+int32_t MAX30205::writeConfiguration(const Configuration_u config)
+{
+    uint16_t local_config = (0x00FF & config.all);
+    
+    return writeRegister(MAX30205::Configuration, local_config);
+}
+
+
+//******************************************************************************
+int32_t MAX30205::readTHYST(uint16_t &value) 
+{
+  return readRegister(MAX30205::THYST, value);
+}
+
+
+//******************************************************************************
+int32_t MAX30205::writeTHYST(uint16_t value) 
+{
+  return writeRegister(MAX30205::THYST, value);
+}
+
+
+//******************************************************************************
+int32_t MAX30205::readTOS(uint16_t &value)
+{
+    return readRegister(MAX30205::TOS, value);
+}
+
+
+//******************************************************************************
+int32_t MAX30205::writeTOS(const uint16_t value)
+{
+    return writeRegister(MAX30205::TOS, value);
+}
+
+
+//******************************************************************************
+float MAX30205::toCelsius(uint32_t rawTemp) 
+{
+  uint8_t val1, val2;
+  float result;
+  
+  val1 = (rawTemp >> 8);
+  val2 = (rawTemp & 0xFF);
+  
+  result = static_cast<float>(val1 + (val2/ 256.0F));
+  
+  return result;
+}
+
+
+//******************************************************************************
+float MAX30205::toFahrenheit(float temperatureC) 
+{
+  return((temperatureC * 1.8F) + 32.0f);
+}
+
+
+//******************************************************************************
+int32_t MAX30205::writeRegister(Registers_e reg, uint16_t value) 
+{
+  int32_t result;
+  
+  uint8_t hi = ((value >> 8) & 0xFF);
+  uint8_t lo = (value & 0xFF);
+  char cmdData[3] = {reg, hi, lo};
+  
+  result = m_i2c->write(m_writeAddress, cmdData, 3);
+  
+  return result;
+}
+
+
+//******************************************************************************
+int32_t MAX30205::readRegister(Registers_e reg, uint16_t &value) 
+{
+  int32_t result;
+  
+  char data[2];
+  char cmdData[1] = {reg};
+  
+  result = m_i2c->write(m_writeAddress, cmdData, 1);
+  if(result == 0)
+  {
+      result = m_i2c->read(m_readAddress, data, 2);
+      if (result == 0)
+      {
+          value = (data[0] << 8) + data[1];
+      }
+  }
+  
+  return result;
+}
+
+int MAX30205::dump_registers(addr_val_pair *reg_vals){
+    int i;
+    int ret = 0;
+	uint16_t val;
+    for (i = 0x00; i <= 0x03; i++) {
+        reg_vals[i].addr = i;
+        ret |= readRegister(static_cast<Registers_e>(i), val);
+		reg_vals[i].val = val;
+    }
+
+	return ret;
+}
+
+const char *MAX30205::get_sensor_part_name()
+{
+	return "max30205";
+}
+
+const char *MAX30205::get_sensor_algo_ver()
+{
+	return "dummy_algo_ver";
+}
+
+
+int MAX30205::sensor_enable(int enable){
+	int32_t ret;
+	Configuration_u config;
+
+
+	ret = readConfiguration(config);
+	if(ret != 0)
+		return ret;
+
+	if(enable){
+		config.bits.shutdown = 0;
+	}else{
+		config.bits.shutdown = 1;
+	}
+
+	return writeConfiguration(config);
+}
+
+/**
+* @brief	Get sensor ID.
+*
+* @returns	Sensor ID number.
+*/
+unsigned char MAX30205::get_sensor_id() {
+
+	return( SENSOR_ID_MAX30205 );
+
+}