Diff: libraries/adxl362/ADXL362.cpp

Revision:

24:dae7123d432a

Parent:

23:174dd32fa661

Child:

25:b9e3756c9cbb

Child:

26:1b988c505139

Child:

27:3c32495708f4

--- a/libraries/adxl362/ADXL362.cpp	Tue May 17 18:37:29 2016 +0300
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,602 +0,0 @@
-/**
-*   @file     ADXL362.cpp
-*   @brief    Source file for ADXL362
-*   @author   Analog Devices Inc.
-*
-* For support please go to:
-* Github: https://github.com/analogdevicesinc/mbed-adi
-* Support: https://ez.analog.com/community/linux-device-drivers/microcontroller-no-os-drivers
-* Product: http://www.analog.com/adxl362
-* More: https://wiki.analog.com/resources/tools-software/mbed-drivers-all
-
-********************************************************************************
-* Copyright 2016(c) Analog Devices, Inc.
-*
-* All rights reserved.
-*
-* Redistribution and use in source and binary forms, with or without
-* modification, are permitted provided that the following conditions are met:
-*  - Redistributions of source code must retain the above copyright
-*    notice, this list of conditions and the following disclaimer.
-*  - Redistributions in binary form must reproduce the above copyright
-*    notice, this list of conditions and the following disclaimer in
-*    the documentation and/or other materials provided with the
-*    distribution.
-*  - Neither the name of Analog Devices, Inc. nor the names of its
-*    contributors may be used to endorse or promote products derived
-*    from this software without specific prior written permission.
-*  - The use of this software may or may not infringe the patent rights
-*    of one or more patent holders.  This license does not release you
-*    from the requirement that you obtain separate licenses from these
-*    patent holders to use this software.
-*  - Use of the software either in source or binary form, must be run
-*    on or directly connected to an Analog Devices Inc. component.
-*
-* THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR
-* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT,
-* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
-* IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT,
-* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-* LIMITED TO, INTELLECTUAL PROPERTY RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR
-* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*
-********************************************************************************/
-
-#include <stdint.h>
-#include "mbed.h"
-#include "ADXL362.h"
-
-/**
- * ADXL362 constructor. Sets CS and SPI bus
- * @param CS - CS pin of the ADXL362
- * @param MOSI - MOSI pin of the ADXL362
- * @param MISO - MISO pin of the ADXL362
- * @param SCK- SCK pin of the ADXL362
- */
-ADXL362::ADXL362(PinName CS, PinName MOSI, PinName MISO, PinName SCK) :
-    adxl362(MOSI, MISO, SCK), cs(CS), _int1(NULL), _int2(NULL), _int1_poll(NC), _int2_poll(
-        NC)
-{
-    cs = true; // cs is active low
-    adxl362.format(8, _SPI_MODE);
-    _temp_stored_in_fifo = false;
-    _int1_act_low = true;
-    _int2_act_low = true;
-}
-
-/**
- * Sets ADXL362 SPI bus frequency
- * @param hz - frequency in hz
- */
-void ADXL362::frequency(int hz)
-{
-    adxl362.frequency(hz);
-}
-
-/**
- * Resets the ADXL362
- * A latency of approximately 0.5 ms is required after soft reset.
- */
-void ADXL362::reset()
-{
-    adxl362.format(8, _SPI_MODE);
-    cs = false;
-    // Writing Code 0x52 (representing the letter, R, in ASCII or unicode) to this register immediately resets the ADXL362.
-    write_reg(SOFT_RESET, 0x52);
-    cs = true;
-
-}
-
-/**
- * Writes the reg register with data
- * @param reg - ADXL362_register_t register to be written
- * @param data - data to be written
- */
-void ADXL362::write_reg(ADXL362_register_t reg, uint8_t data)
-{
-    adxl362.format(8, _SPI_MODE);
-    cs = false;
-    adxl362.write(_WRITE_REG_CMD);
-    adxl362.write(static_cast<uint8_t>(reg));
-    adxl362.write(static_cast<uint8_t>(data));
-    cs = true;
-}
-
-/**
- * Reads the reg register
- * @param reg -  ADXL362_register_t register to be read
- * @return - data read from the register
- */
-uint8_t ADXL362::read_reg(ADXL362_register_t reg)
-{
-    uint8_t ret_val;
-    adxl362.format(8, _SPI_MODE);
-    cs = false;
-    adxl362.write(_READ_REG_CMD);
-    adxl362.write(static_cast<uint8_t>(reg));
-    ret_val = adxl362.write(_DUMMY_BYTE);
-    cs = true;
-    return ret_val;
-}
-
-/**
- * Writes 16 bit registers to the ADXL362. Performs conversion from Intel to Motorola byte order
- * @param reg -  ADXL362_register_t register to be written
- * @param data -  data to be written
- */
-void ADXL362::write_reg_u16(ADXL362_register_t reg, uint16_t data)
-{
-    adxl362.format(8, _SPI_MODE);
-
-    cs = false;
-    adxl362.write(_WRITE_REG_CMD);
-    adxl362.write(static_cast<uint8_t>(reg));
-    adxl362.write(static_cast<uint8_t>(data & 0xff));
-    adxl362.write(static_cast<uint8_t>((data & 0xff00) >> 8));
-
-    cs = true;
-}
-
-/**
- * Reads 16 bit registers from the ADXL362. Performs conversion from Motorola to Intel Byte order
- * @param reg - ADXL362_register_t register to be read
- * @return - data read from the ADXL362
- */
-uint16_t ADXL362::read_reg_u16(ADXL362_register_t reg)
-{
-    uint16_t ret_val = 0;
-    adxl362.format(8, _SPI_MODE);
-
-    cs = false;
-    adxl362.write(_READ_REG_CMD);
-    adxl362.write(static_cast<uint8_t>(reg));
-    ret_val = adxl362.write(_DUMMY_BYTE);
-    ret_val = ret_val | (adxl362.write(_DUMMY_BYTE) << 8);
-    cs = true;
-
-    return ret_val;
-}
-
-/**
- * Scans the X,Y,Z,T registers for data.
- * ADXL362 needs to be in measurement mode to read data
- * ADXL362 is set in measurement mode using ADXL362::set_mode(ADXL362::MEASUREMENT)
- * @return a 64 bit integer with the following format 0xXXYYZZTT
- */
-uint64_t ADXL362::scan()
-{
-    uint64_t ret_val = 0;
-    uint16_t x, y, z, t = 0;
-
-    adxl362.format(8, _SPI_MODE);
-    cs = false;
-    adxl362.write(_READ_REG_CMD);
-    adxl362.write(static_cast<uint8_t>(XDATA_L));
-
-    x = adxl362.write(_DUMMY_BYTE);
-    x = x | static_cast<uint16_t>(adxl362.write(_DUMMY_BYTE) << 8);
-    y = adxl362.write(_DUMMY_BYTE);
-    y = y | static_cast<uint16_t>(adxl362.write(_DUMMY_BYTE) << 8);
-    z = adxl362.write(_DUMMY_BYTE);
-    z = z | static_cast<uint16_t>(adxl362.write(_DUMMY_BYTE) << 8);
-    t = adxl362.write(_DUMMY_BYTE);
-    t = t | static_cast<uint16_t>(adxl362.write(_DUMMY_BYTE) << 8);
-
-    ret_val = static_cast<uint64_t>(x) << 48;
-    ret_val |= static_cast<uint64_t>(y) << 32;
-    ret_val |= static_cast<uint64_t>(z) << 16;
-    ret_val |= static_cast<uint64_t>(t);
-    cs = true;
-    return ret_val;
-}
-
-/**
- * Reads the X 8 bit register from the ADXL362
- * ADXL362 is set in measurement mode using ADXL362::set_mode(ADXL362::MEASUREMENT)
- * @return 8 bit X data
- */
-uint8_t ADXL362::scanx_u8()
-{
-    return read_reg(XDATA);
-}
-
-/**
- * Reads the X 16 bit register from the ADXL362
- * ADXL362 is set in measurement mode using ADXL362::set_mode(ADXL362::MEASUREMENT)
- * @return 16 bit X data
- */
-uint16_t ADXL362::scanx()
-{
-    return read_reg_u16(XDATA_L);
-}
-
-/**
- * Reads the Y 8 bit register from the ADXL362
- * ADXL362 is set in measurement mode using ADXL362::set_mode(ADXL362::MEASUREMENT)
- * @return 8 bit Y data
- */
-uint8_t ADXL362::scany_u8()
-{
-    return read_reg(YDATA);
-}
-
-/**
- * Reads the Y 16 bit register from the ADXL362
- * ADXL362 is set in measurement mode using ADXL362::set_mode(ADXL362::MEASUREMENT)
- * @return 16 bit Y data
- */
-uint16_t ADXL362::scany()
-{
-    return read_reg_u16(YDATA_L);
-}
-
-/**
- * Reads the Z 8 bit register from the ADXL362
- * ADXL362 is set in measurement mode using ADXL362::set_mode(ADXL362::MEASUREMENT)
- * @return 8 bit Z data
- */
-uint8_t ADXL362::scanz_u8()
-{
-    return read_reg(ZDATA);
-}
-
-/**
- * Reads the Z 16 bit register from the ADXL362
- * ADXL362 is set in measurement mode using ADXL362::set_mode(ADXL362::MEASUREMENT)
- * @return 16 bit Z data
- */
-uint16_t ADXL362::scanz()
-{
-    return read_reg_u16(ZDATA_L);
-}
-
-/**
- * Reads the T 16 bit register from the ADXL362
- * ADXL362 is set in measurement mode using ADXL362::set_mode(ADXL362::MEASUREMENT)
- * @return 16 bit T data
- */
-uint16_t ADXL362::scant()
-{
-    return read_reg_u16(TEMP_L);
-}
-
-/**
- * Sets the STANDBY/MEASUREMENT mode of the ADXL362
- * @param mode - ADXL362_modes_t STANDBY/MEASUREMENT mode
- */
-void ADXL362::set_mode(ADXL362_modes_t mode)
-{
-    uint8_t reg_val;
-    reg_val = read_reg(POWER_CTL);
-    reg_val = reg_val | static_cast<uint8_t>(mode);
-    write_reg(POWER_CTL, reg_val);
-}
-
-/**
- * Sets the activity threshold registers
- * To enable activity/inactivity, the ACT_INACT_CTL reg must also be set
- * using the ADXL362::set_act_inact_ctl_reg(uint8_t data) method
- * @param threshold - activity threshold in natural format
- */
-void ADXL362::set_activity_threshold(uint16_t threshold)
-{
-    write_reg_u16(THRESH_ACT_L, threshold);
-}
-
-/**
- * Sets the activity time register
- * To enable activity/inactivity, the ACT_INACT_CTL reg must also be set
- * using the ADXL362::set_act_inact_ctl_reg(uint8_t data) method
- * @param time - activity time
- */
-void ADXL362::set_activity_time(uint8_t time)
-{
-    write_reg(TIME_ACT, time);
-}
-
-/**
- * Sets the inactivity threshold register
- * To enable activity/inactivity, the ACT_INACT_CTL reg must also be set
- * using the ADXL362::set_act_inact_ctl_reg(uint8_t data) method
- * @param threshold - inactivity threshold in natural format
- */
-void ADXL362::set_inactivity_threshold(uint16_t threshold)
-{
-    write_reg_u16(THRESH_INACT_L, threshold);
-}
-
-/**
- * Sets the inactivity time register
- * To enable activity/inactivity, the ACT_INACT_CTL reg must also be set
- * using the ADXL362::set_act_inact_ctl_reg(uint8_t data) method
- * @param time - inactivity time in natural format
- */
-void ADXL362::set_inactivity_time(uint16_t time)
-{
-    write_reg_u16(TIME_INACT_L, time);
-}
-
-/**
- * Sets the ACT_INACT_CTL register of the ADXL362
- * @param data - data to be written to the register
- */
-void ADXL362::set_act_inact_ctl_reg(uint8_t data)
-{
-    write_reg(ACT_INACT_CTL, data);
-}
-
-/**
- * Configures INT1 output of the ADXL362 for polling use
- * @param in - uC pin connected to ADXL362's INT1
- * @param data - data to be written to INTMAP1
- * @param pull - (optional) configures pullup on In pin
- */
-void ADXL362::set_polling_interrupt1_pin(PinName in, uint8_t data,
-        PinMode pull)
-{
-    if ((data & 0x7F) != 0) {
-        write_reg(INTMAP1, data);
-        _int1_poll = DigitalIn(in);
-        _int1_poll.mode(pull);
-        if (data & 0x80) {
-            _int1_act_low = true;
-        } else {
-            _int1_act_low = false;
-        }
-    }
-}
-
-/**
- * Configures INT2 output of the ADXL362 for polling use
- * @param in - uC pin connected to ADXL362's INT2
- * @param data - data to be written to INTMAP2
- * @param pull - (optional) configures pullup on In pin
- */
-void ADXL362::set_polling_interrupt2_pin(PinName in, uint8_t data,
-        PinMode pull)
-{
-    if ((data & 0x7F) != 0) {
-        write_reg(INTMAP2, data);
-        _int2_poll = DigitalIn(in);
-        _int2_poll.mode(pull);
-        if (data & 0x80) {
-            _int2_act_low = true;
-        } else {
-            _int2_act_low = false;
-        }
-    }
-}
-
-/**
- * Gets the active state of the INT1 pin
- * @return true if active, false if not active
- */
-bool ADXL362::get_int1()
-{
-    if(_int1_poll != NC) return (_int1_poll.read() != _int1_act_low);  // boolean XOR
-    else return (_int1->read() != _int1_act_low);
-}
-
-/**
- * Gets the active state of the INT2 pin
- * @return true if active, false if not active
- */
-bool ADXL362::get_int2()
-{
-    if(_int2_poll != NC) return (_int1_poll.read() != _int1_act_low); // boolean XOR
-    else return (_int2->read() != _int2_act_low);
-}
-
-
-/**
- * Configures the INT1 pin of the ADXL362 to be used in interrupt mode
- * @param in - uC pin connected to ADXL362's INT1
- * @param data -  data to be written to INTMAP1
- * @param callback_rising - rising edge interrupt callback - can be set to NULL if no callback is required for rising edge
- * @param callback_falling - falling edge interrupt callback - can be set to NULL if no callback is required for falling edge
- * @param pull - (optional) configures pullup on In pin
- */
-void ADXL362::set_interrupt1_pin(PinName in, uint8_t data,
-                                 void (*callback_rising)(void), void (*callback_falling)(void), PinMode pull)
-{
-    if ((data & 0x7F) != 0) {
-        write_reg(INTMAP1, data);
-        delete _int1;
-        _int1 = new InterruptIn(in);
-        _int1->mode(pull);
-        if(callback_falling != NULL) _int1->fall(callback_falling);
-        if(callback_rising != NULL) _int1->rise(callback_rising);
-        if (data & 0x80) {
-            _int1_act_low = true;
-        } else {
-            _int1_act_low = false;
-        }
-    }
-}
-
-
-/**
- * Configures the INT2 pin of the ADXL362 to be used in interrupt mode
- * @param in - uC pin connected to ADXL362's INT2
- * @param data -  data to be written to INTMAP2
- * @param callback_rising - rising edge interrupt callback - can be set to NULL if no callback is required for rising edge
- * @param callback_falling - falling edge interrupt callback - can be set to NULL if no callback is required for falling edge
- * @param pull - (optional) configures pullup on In pin
- */
-void ADXL362::set_interrupt2_pin(PinName in, uint8_t data,
-                                 void (*callback_rising)(void), void (*callback_falling)(void), PinMode pull)
-{
-    if ((data & 0x7F) != 0) {
-        write_reg(INTMAP2, data);
-        delete _int2;
-        _int2 = new InterruptIn(in);
-        _int2->mode(pull);
-        if(callback_falling != NULL) _int2->fall(callback_falling);
-        if(callback_rising != NULL) _int2->rise(callback_rising);
-        if (data & 0x80) {
-            _int2_act_low = true;
-        } else {
-            _int2_act_low = false;
-        }
-    }
-}
-
-/**
- * Enables external interrupt registration for pin configured as INT1
- * To enable this interrupt, it must first be configured using ADXL362::set_interrupt1_pin()
- */
-void ADXL362::enable_interrupt1()
-{
-    _int1->enable_irq();
-}
-
-/**
- * Enables external interrupt registration  for pin configured as INT2
- * * To enable this interrupt, it must first be configured using ADXL362::set_interrupt2_pin()
- */
-void ADXL362::enable_interrupt2()
-{
-    _int2->enable_irq();
-}
-
-/**
- * Disables external interrupt registration  for pin configured as INT1
- */
-void ADXL362::disable_interrupt1()
-{
-    _int1->disable_irq();
-}
-
-/**
- * Disables external interrupt registration  for pin configured as INT2
- */
-void ADXL362::disable_interrupt2()
-{
-    _int2->disable_irq();
-}
-
-/**
- * Sets the POWER_CTL register
- * @param data - data to be written to the register
- */
-void ADXL362::set_power_ctl_reg(uint8_t data)
-{
-    write_reg(POWER_CTL, data);
-}
-
-/**
- * Sets the FILTER_CTL register
- * @param data - data to be written to the register
- */
-void ADXL362::set_filter_ctl_reg(uint8_t data)
-{
-    write_reg(FILTER_CTL, data);
-}
-
-/**
- * Reads the STATUS register of the ADXL362
- * @return - data in the status register
- */
-uint8_t ADXL362::read_status()
-{
-    return read_reg(STATUS);
-}
-
-/**
- * Reads the FIFO_ENTRIES_L and FIFO_ENTRIES_H register
- * @return the number of entries in the FIFO
- */
-uint16_t ADXL362::fifo_read_nr_of_entries()
-{
-    return read_reg_u16(FIFO_ENTRIES_L);
-}
-
-/**
- * Setup for the FIFO
- * @param store_temp - boolean, true - temperature will be stored in the fifo. false otherwise
- * @param mode - ADXL362_FIFO_modes_t fifo mode
- * @param nr_of_entries - number of entries in the FIFO
- */
-void ADXL362::fifo_setup(bool store_temp, ADXL362_FIFO_modes_t mode, uint16_t nr_of_entries)
-{
-    uint8_t fifo_ctl = static_cast<uint8_t>(mode);
-    _temp_stored_in_fifo = store_temp;
-
-    fifo_ctl = fifo_ctl | (static_cast<uint8_t>(_temp_stored_in_fifo) << 2);
-
-    if (nr_of_entries > 0xff) {
-        fifo_ctl = fifo_ctl | static_cast<uint8_t>(AH);
-    }
-    write_reg(FIFO_CONTROL, fifo_ctl);
-    write_reg(FIFO_SAMPLES, static_cast<uint8_t>(nr_of_entries & 0xff));
-
-}
-
-/**
- * Reads a FIFO entry
- * @return FIFO entry
- */
-uint16_t ADXL362::fifo_read_u16()
-{
-    uint16_t ret_val = 0;
-    adxl362.format(8, _SPI_MODE);
-
-    cs = false;
-    adxl362.write(_READ_FIFO_CMD);
-    ret_val = adxl362.write(_DUMMY_BYTE);
-    ret_val = (ret_val) | static_cast<uint16_t>(adxl362.write(_DUMMY_BYTE) << 8);
-    cs = true;
-
-    return ret_val;
-}
-
-/**
- * Reads 3(4) bytes from the FIFO(if store_temp was set), assembles the data in the format used by the scan method
- * ADXL362::fifo_setup() needs to be called before calling fifo_scan to ensure correct fifo operation
- * fifo_scan and fifo_read_u16 should not be used as fifo_read_u16 disaligns the fifo therefore
- * fifo_scan will return data from multiple samples
- * @return scanned data from the fifo in the 0xXXYYZZTT format
- */
-uint64_t ADXL362::fifo_scan()
-{
-
-    uint64_t ret_val = 0;
-    uint16_t x = 0, y = 0, z = 0, dummy, t = 0, sample_type;
-
-    adxl362.format(8, _SPI_MODE);
-    cs = false;
-    adxl362.write(_READ_FIFO_CMD);
-    uint8_t samples = (_temp_stored_in_fifo) ? 4 : 3;
-    for(uint8_t i = 0; i < samples; i++) {
-        dummy = adxl362.write(_DUMMY_BYTE);
-        dummy = dummy | static_cast<uint16_t>(adxl362.write(_DUMMY_BYTE) << 8);
-        sample_type = (dummy & 0xc000) >> 14;
-        dummy = dummy & 0x3fff;
-        switch(sample_type) {
-            case 0: // x
-                x = dummy;
-                break;
-            case 1: // y
-                y = dummy;
-                break;
-            case 2: // z
-                z = dummy;
-                break;
-            case 3: // temp
-                t = dummy;
-                break;
-        }
-
-    }
-
-    // format xxyyzztt
-    ret_val = static_cast<uint64_t> (x) << 48;
-    ret_val |= static_cast<uint64_t>(y) << 32;
-    ret_val |= static_cast<uint64_t>(z) << 16;
-    ret_val |= static_cast<uint64_t>(t);
-    cs = true;
-    return ret_val;
-}