Arun Raj / Mbed OS MAXREFDES101_SOURCE

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Dependencies:   max32630fthr Adafruit_FeatherOLED USBDevice

Drivers/BMI160/bmi160_i2c.cpp@1:f60eafbf009a, 2019-04-10 (annotated)

Committer:
gmehmet
Date:
Wed Apr 10 14:56:25 2019 +0300
Revision:
1:f60eafbf009a
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gmehmet 1:f60eafbf009a 1 /**********************************************************************
gmehmet 1:f60eafbf009a 2 * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
gmehmet 1:f60eafbf009a 3 *
gmehmet 1:f60eafbf009a 4 * Permission is hereby granted, free of charge, to any person obtaining a
gmehmet 1:f60eafbf009a 5 * copy of this software and associated documentation files (the "Software"),
gmehmet 1:f60eafbf009a 6 * to deal in the Software without restriction, including without limitation
gmehmet 1:f60eafbf009a 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
gmehmet 1:f60eafbf009a 8 * and/or sell copies of the Software, and to permit persons to whom the
gmehmet 1:f60eafbf009a 9 * Software is furnished to do so, subject to the following conditions:
gmehmet 1:f60eafbf009a 10 *
gmehmet 1:f60eafbf009a 11 * The above copyright notice and this permission notice shall be included
gmehmet 1:f60eafbf009a 12 * in all copies or substantial portions of the Software.
gmehmet 1:f60eafbf009a 13 *
gmehmet 1:f60eafbf009a 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
gmehmet 1:f60eafbf009a 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
gmehmet 1:f60eafbf009a 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
gmehmet 1:f60eafbf009a 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
gmehmet 1:f60eafbf009a 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
gmehmet 1:f60eafbf009a 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
gmehmet 1:f60eafbf009a 20 * OTHER DEALINGS IN THE SOFTWARE.
gmehmet 1:f60eafbf009a 21 *
gmehmet 1:f60eafbf009a 22 * Except as contained in this notice, the name of Maxim Integrated
gmehmet 1:f60eafbf009a 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
gmehmet 1:f60eafbf009a 24 * Products, Inc. Branding Policy.
gmehmet 1:f60eafbf009a 25 *
gmehmet 1:f60eafbf009a 26 * The mere transfer of this software does not imply any licenses
gmehmet 1:f60eafbf009a 27 * of trade secrets, proprietary technology, copyrights, patents,
gmehmet 1:f60eafbf009a 28 * trademarks, maskwork rights, or any other form of intellectual
gmehmet 1:f60eafbf009a 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
gmehmet 1:f60eafbf009a 30 * ownership rights.
gmehmet 1:f60eafbf009a 31 **********************************************************************/
gmehmet 1:f60eafbf009a 32
gmehmet 1:f60eafbf009a 33
gmehmet 1:f60eafbf009a 34 #include "bmi160.h"
gmehmet 1:f60eafbf009a 35
gmehmet 1:f60eafbf009a 36
gmehmet 1:f60eafbf009a 37 //*****************************************************************************
gmehmet 1:f60eafbf009a 38 BMI160_I2C::BMI160_I2C(I2C *i2cBus, uint8_t i2cAdrs)
gmehmet 1:f60eafbf009a 39 :m_i2cBus(i2cBus), m_Wadrs(i2cAdrs << 1), m_Radrs((i2cAdrs << 1) | 1)
gmehmet 1:f60eafbf009a 40 {
gmehmet 1:f60eafbf009a 41
gmehmet 1:f60eafbf009a 42 }
gmehmet 1:f60eafbf009a 43
gmehmet 1:f60eafbf009a 44 BMI160_I2C::BMI160_I2C(I2C *i2cBus, uint8_t i2cAdrs, InterruptIn *int_pin)
gmehmet 1:f60eafbf009a 45 :m_i2cBus(i2cBus), m_Wadrs(i2cAdrs << 1), m_Radrs((i2cAdrs << 1) | 1), BMI160(int_pin)
gmehmet 1:f60eafbf009a 46 {
gmehmet 1:f60eafbf009a 47
gmehmet 1:f60eafbf009a 48 }
gmehmet 1:f60eafbf009a 49
gmehmet 1:f60eafbf009a 50 //*****************************************************************************
gmehmet 1:f60eafbf009a 51 int32_t BMI160_I2C::readRegister(Registers reg, uint8_t *data)
gmehmet 1:f60eafbf009a 52 {
gmehmet 1:f60eafbf009a 53 int32_t rtnVal = -1;
gmehmet 1:f60eafbf009a 54 char packet[] = {static_cast<char>(reg)};
gmehmet 1:f60eafbf009a 55
gmehmet 1:f60eafbf009a 56 if(m_i2cBus->write(m_Wadrs, packet, 1) == 0)
gmehmet 1:f60eafbf009a 57 {
gmehmet 1:f60eafbf009a 58 rtnVal = m_i2cBus->read(m_Radrs, reinterpret_cast<char *>(data), 1);
gmehmet 1:f60eafbf009a 59 }
gmehmet 1:f60eafbf009a 60
gmehmet 1:f60eafbf009a 61 return rtnVal;
gmehmet 1:f60eafbf009a 62 }
gmehmet 1:f60eafbf009a 63
gmehmet 1:f60eafbf009a 64
gmehmet 1:f60eafbf009a 65 //*****************************************************************************
gmehmet 1:f60eafbf009a 66 int32_t BMI160_I2C::writeRegister(Registers reg, const uint8_t data)
gmehmet 1:f60eafbf009a 67 {
gmehmet 1:f60eafbf009a 68 char packet[] = {static_cast<char>(reg), static_cast<char>(data)};
gmehmet 1:f60eafbf009a 69
gmehmet 1:f60eafbf009a 70 return m_i2cBus->write(m_Wadrs, packet, sizeof(packet));
gmehmet 1:f60eafbf009a 71 }
gmehmet 1:f60eafbf009a 72
gmehmet 1:f60eafbf009a 73
gmehmet 1:f60eafbf009a 74 //*****************************************************************************
gmehmet 1:f60eafbf009a 75 int32_t BMI160_I2C::readBlock(Registers startReg, Registers stopReg,
gmehmet 1:f60eafbf009a 76 uint8_t *data)
gmehmet 1:f60eafbf009a 77 {
gmehmet 1:f60eafbf009a 78 int32_t rtnVal = -1;
gmehmet 1:f60eafbf009a 79 int32_t numBytes = ((stopReg - startReg) + 1);
gmehmet 1:f60eafbf009a 80 char packet[] = {static_cast<char>(startReg)};
gmehmet 1:f60eafbf009a 81
gmehmet 1:f60eafbf009a 82 if(m_i2cBus->write(m_Wadrs, packet, 1) == 0)
gmehmet 1:f60eafbf009a 83 {
gmehmet 1:f60eafbf009a 84 rtnVal = m_i2cBus->read(m_Radrs, reinterpret_cast<char *>(data), numBytes);
gmehmet 1:f60eafbf009a 85 }
gmehmet 1:f60eafbf009a 86
gmehmet 1:f60eafbf009a 87 return rtnVal;
gmehmet 1:f60eafbf009a 88 }
gmehmet 1:f60eafbf009a 89
gmehmet 1:f60eafbf009a 90
gmehmet 1:f60eafbf009a 91 //*****************************************************************************
gmehmet 1:f60eafbf009a 92 int32_t BMI160_I2C::writeBlock(Registers startReg, Registers stopReg,
gmehmet 1:f60eafbf009a 93 const uint8_t *data)
gmehmet 1:f60eafbf009a 94 {
gmehmet 1:f60eafbf009a 95 int32_t numBytes = ((stopReg - startReg) + 1);
gmehmet 1:f60eafbf009a 96 char packet[numBytes + 1];
gmehmet 1:f60eafbf009a 97
gmehmet 1:f60eafbf009a 98 packet[0] = static_cast<char>(startReg);
gmehmet 1:f60eafbf009a 99
gmehmet 1:f60eafbf009a 100 memcpy(packet + 1, data, numBytes);
gmehmet 1:f60eafbf009a 101
gmehmet 1:f60eafbf009a 102 return m_i2cBus->write(m_Wadrs, packet, sizeof(packet));
gmehmet 1:f60eafbf009a 103 }