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drivers/adxl345: initial implementation + SAUL adaptation
Signed-off-by: dylad <dylan.laduranty@mesotic.com>
This commit is contained in:
dylad
parent
c72aec26a5
commit
2f801bbce9
@ -1,5 +1,9 @@
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# driver dependencies (in alphabetical order)
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# driver dependencies (in alphabetical order)
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ifneq (,$(filter adxl345,$(USEMODULE)))
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FEATURES_REQUIRED += periph_i2c
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endif
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ifneq (,$(filter at30tse75x,$(USEMODULE)))
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ifneq (,$(filter at30tse75x,$(USEMODULE)))
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USEMODULE += xtimer
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USEMODULE += xtimer
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FEATURES_REQUIRED += periph_i2c
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FEATURES_REQUIRED += periph_i2c
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@ -103,3 +103,6 @@ endif
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ifneq (,$(filter veml6070,$(USEMODULE)))
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ifneq (,$(filter veml6070,$(USEMODULE)))
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USEMODULE_INCLUDES += $(RIOTBASE)/drivers/veml6070/include
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USEMODULE_INCLUDES += $(RIOTBASE)/drivers/veml6070/include
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endif
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endif
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ifneq (,$(filter adxl345,$(USEMODULE)))
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USEMODULE_INCLUDES += $(RIOTBASE)/drivers/adxl345/include
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endif
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1
drivers/adxl345/Makefile
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1
drivers/adxl345/Makefile
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@ -0,0 +1 @@
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include $(RIOTBASE)/Makefile.base
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224
drivers/adxl345/adxl345.c
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224
drivers/adxl345/adxl345.c
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@ -0,0 +1,224 @@
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/*
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* Copyright (C) 2017 Mesotic SAS
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup drivers_adxl345
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* @{
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*
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* @file
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* @brief Device driver implementation for the ADXL345 accelerometer (i2c only)
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*
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* @author Dylan Laduranty <dylan.laduranty@mesotic.com>
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*
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* @}
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*/
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#include <stdint.h>
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#include <stdbool.h>
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#include <string.h>
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#include "assert.h"
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#include "periph/i2c.h"
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#include "adxl345.h"
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#include "adxl345_regs.h"
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#define ENABLE_DEBUG (0)
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#include "debug.h"
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#define I2C_SPEED I2C_SPEED_NORMAL
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#define BUS (dev->params.i2c)
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#define ADDR (dev->params.addr)
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int adxl345_init(adxl345_t *dev, const adxl345_params_t* params)
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{
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uint8_t reg;
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assert(dev && params);
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/* get device descriptor */
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dev->params= *params;
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/* Acquire exclusive access */
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i2c_acquire(BUS);
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/* Initialize I2C interface */
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if (i2c_init_master(BUS, I2C_SPEED) < 0) {
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i2c_release(BUS);
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DEBUG("[adxl345] init - error: unable to initialize I2C bus\n");
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return ADXL345_NOI2C;
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}
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/* test if the target device responds */
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i2c_read_reg(BUS, ADDR, ACCEL_ADXL345_CHIP_ID_REG, ®);
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if (reg != ACCEL_ADXL345_CHIP_ID) {
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i2c_release(BUS);
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DEBUG("[adxl345] init - error: invalid id value [0x%02x]\n", (int)reg);
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return ADXL345_NODEV;
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}
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/* configure the user offset */
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i2c_write_regs(BUS, ADDR, ACCEL_ADXL345_OFFSET_X, dev->params.offset, 3);
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/* Basic device setup */
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reg = (dev->params.full_res | dev->params.range);
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_DATA_FORMAT, reg);
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_BW_RATE, dev->params.rate);
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/* Put device in measure mode */
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_POWER_CTL, MEASURE_BIT);
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/* Release the bus */
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i2c_release(BUS);
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DEBUG("[adxl345] init: successful\n");
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return ADXL345_OK;
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}
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void adxl345_read(adxl345_t *dev, adxl345_data_t *data)
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{
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uint8_t result[6];
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assert(dev && data);
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i2c_acquire(BUS);
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i2c_read_regs(BUS, ADDR, ACCEL_ADXL345_DATA_X0, result, 6);
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i2c_release(BUS);
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data->x = (((result[1] << 8)+result[0]) * dev->params.scale_factor);
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data->y = (((result[3] << 8)+result[2]) * dev->params.scale_factor);
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data->z = (((result[5] << 8)+result[4]) * dev->params.scale_factor);
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}
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void adxl345_set_interrupt(adxl345_t *dev)
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{
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assert(dev);
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DEBUG("[adxl345] Update interruptions configuration\n");
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i2c_acquire(BUS);
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/* Set threshold */
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_THRESH_TAP, dev->params.interrupt.thres_tap);
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/* Set Map */
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_INT_MAP, dev->params.interrupt.map);
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/* Set Duration */
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_TAP_DUR, dev->params.interrupt.thres_dur);
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/* Enable axes */
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_TAP_AXES, dev->params.interrupt.tap_axes);
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/* Set source */
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_INT_SOURCE, dev->params.interrupt.source);
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/* Set latent threshold */
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_TAP_LAT, dev->params.interrupt.thres_latent);
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/* Set window threshold */
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_TAP_WIN, dev->params.interrupt.thres_window);
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/* Set activity threshold */
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_THRESH_ACT, dev->params.interrupt.thres_act);
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/* Set inactivity threshold */
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_THRESH_INACT, dev->params.interrupt.thres_inact);
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/* Set inactivity time */
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_TIME_INACT, dev->params.interrupt.time_inact);
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/* Set free-fall threshold */
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_THRESH_FF, dev->params.interrupt.thres_ff);
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/* Set free-fall time */
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_TIME_FF, dev->params.interrupt.time_ff);
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/* Set axis control */
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_ACT_INACT_CTL, dev->params.interrupt.act_inact);
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/* Enable interrupt */
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_INT_ENABLE, dev->params.interrupt.enable);
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/* Release the bus */
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i2c_release(BUS);
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}
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void adxl345_set_measure(adxl345_t *dev)
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{
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uint8_t reg;
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assert(dev);
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DEBUG("[adxl345] set device to measure mode\n");
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i2c_acquire(BUS);
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i2c_read_reg(BUS, ADDR, ACCEL_ADXL345_POWER_CTL, ®);
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reg |= MEASURE_BIT;
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_POWER_CTL, reg);
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i2c_release(BUS);
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}
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void adxl345_set_standby(adxl345_t *dev)
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{
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uint8_t reg;
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assert(dev);
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DEBUG("[adxl345] set device to standby mode\n");
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i2c_acquire(BUS);
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i2c_read_reg(BUS, ADDR, ACCEL_ADXL345_POWER_CTL, ®);
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reg &= ~MEASURE_BIT;
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_POWER_CTL, reg);
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i2c_release(BUS);
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}
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void adxl345_set_sleep(adxl345_t *dev)
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{
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uint8_t reg;
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assert(dev);
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DEBUG("[adxl345] set device to sleep mode\n");
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i2c_acquire(BUS);
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i2c_read_reg(BUS, ADDR, ACCEL_ADXL345_POWER_CTL, ®);
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reg |= SLEEP_BIT;
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_POWER_CTL, reg);
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i2c_release(BUS);
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}
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void adxl345_set_autosleep(adxl345_t *dev)
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{
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uint8_t reg;
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assert(dev);
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DEBUG("[adxl345] set device to autosleep mode\n");
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i2c_acquire(BUS);
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i2c_read_reg(BUS, ADDR, ACCEL_ADXL345_POWER_CTL, ®);
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reg |= AUTOSLEEP_BIT;
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_POWER_CTL, reg);
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i2c_release(BUS);
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}
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void adxl345_set_bandwidth_rate(adxl345_t *dev, uint8_t bw_rate)
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{
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uint8_t reg;
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assert(dev);
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DEBUG("[adxl345] set device rate to %d Hz\n", (int)bw_rate);
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i2c_acquire(BUS);
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i2c_read_reg(BUS, ADDR, ACCEL_ADXL345_BW_RATE, ®);
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reg |= bw_rate;
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_BW_RATE, reg);
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i2c_release(BUS);
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}
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void adxl345_set_fifo_mode(adxl345_t *dev, uint8_t mode,
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uint8_t output, uint8_t value)
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{
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uint8_t reg;
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assert(dev);
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DEBUG("[adxl345] set fifo mode to %d, output trigger to %d and trigger "
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"value to :%d\n", (int)mode, (int)output, (int)value);
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i2c_acquire(BUS);
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reg = ((mode << FIFO_MODE_POS) | (output << FIFO_TRIGGER_POS) | value);
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i2c_write_reg(BUS, ADDR, ACCEL_ADXL345_FIFO_CTL, reg);
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i2c_release(BUS);
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}
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43
drivers/adxl345/adxl345_saul.c
Normal file
43
drivers/adxl345/adxl345_saul.c
Normal file
@ -0,0 +1,43 @@
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/*
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* Copyright (C) 2017 Mesotic SAS
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup drivers_adxl345
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* @{
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*
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* @file
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* @brief SAUL adaption for ADXL345 device
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*
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* @author Dylan Laduranty <dylan.laduranty@mesotic.com>
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*
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* @}
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*/
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#include "saul.h"
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#include "adxl345.h"
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static int read_acc(void *dev, phydat_t *res)
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{
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adxl345_t *d = (adxl345_t *)dev;
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adxl345_read(d, (adxl345_data_t *)res->val);
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res->unit = UNIT_G;
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res->scale = -3;
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return 3;
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}
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static int write(void *dev, phydat_t *state)
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{
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return -ENOTSUP;
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}
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const saul_driver_t adxl345_saul_driver = {
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.read = read_acc,
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.write = write,
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.type = SAUL_SENSE_ACCEL,
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};
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94
drivers/adxl345/include/adxl345_params.h
Normal file
94
drivers/adxl345/include/adxl345_params.h
Normal file
@ -0,0 +1,94 @@
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/*
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* Copyright (C) 2017 Mesotic SAS
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup drivers_adxl345
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* @{
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*
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* @file
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* @brief Default configuration for ADXL345 devices
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*
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* @author Dylan Laduranty <dylan.laduranty@mesotic.com>
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*/
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#ifndef ADXL345_PARAMS_H
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#define ADXL345_PARAMS_H
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#include "board.h"
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#include "saul_reg.h"
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#include "adxl345.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Set default configuration parameters for the ADXL345 driver
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* @{
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*/
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#ifndef ADXL345_PARAM_I2C
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#define ADXL345_PARAM_I2C (I2C_DEV(0))
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#endif
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#ifndef ADXL345_PARAM_ADDR
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#define ADXL345_PARAM_ADDR (ADXL345_ADDR_53)
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#endif
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#ifndef ADXL345_PARAM_RATE
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#define ADXL345_PARAM_RATE (ADXL345_RATE_200HZ)
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#endif
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#ifndef ADXL345_PARAM_RANGE
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#define ADXL345_PARAM_RANGE (ADXL345_RANGE_16G)
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#endif
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#ifndef ADXL345_PARAM_OFFSET
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#define ADXL345_PARAM_OFFSET { 0, 0, 0 }
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#endif
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#ifndef ADXL345_PARAM_INTERRUPT
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#define ADXL345_PARAM_INTERRUPT {0x0F, 0xBF, 0x40, 0xF0, 0xFF, 0x00, 0x00, \
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F}
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#endif
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#ifndef ADXL345_PARAM_FULL_RES
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#define ADXL345_PARAM_FULL_RES (1)
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#endif
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#ifndef ADXL345_PARAM_SCALE_FACTOR
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#define ADXL345_PARAM_SCALE_FACTOR (3.9)
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#endif
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#ifndef ADXL345_PARAMS
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#define ADXL345_PARAMS { .i2c = ADXL345_PARAM_I2C, \
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.addr = ADXL345_PARAM_ADDR, \
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.rate = ADXL345_PARAM_RATE, \
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.range = ADXL345_PARAM_RANGE, \
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.offset = ADXL345_PARAM_OFFSET, \
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.interrupt = ADXL345_PARAM_INTERRUPT, \
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||||||
|
.full_res = ADXL345_PARAM_FULL_RES, \
|
||||||
|
.scale_factor = ADXL345_PARAM_SCALE_FACTOR}
|
||||||
|
#endif
|
||||||
|
/**@}*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief ADXL345 configuration
|
||||||
|
*/
|
||||||
|
static const adxl345_params_t adxl345_params[] =
|
||||||
|
{
|
||||||
|
ADXL345_PARAMS
|
||||||
|
};
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Additional meta information to keep in the SAUL registry
|
||||||
|
*/
|
||||||
|
static const saul_reg_info_t adxl345_saul_info[] =
|
||||||
|
{
|
||||||
|
{
|
||||||
|
.name = "adxl345"
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif /* ADXL345_PARAMS_H */
|
||||||
|
/** @} */
|
||||||
189
drivers/adxl345/include/adxl345_regs.h
Normal file
189
drivers/adxl345/include/adxl345_regs.h
Normal file
@ -0,0 +1,189 @@
|
|||||||
|
/*
|
||||||
|
* Copyright (C) 2017 Mesotic SAS
|
||||||
|
*
|
||||||
|
* This file is subject to the terms and conditions of the GNU Lesser
|
||||||
|
* General Public License v2.1. See the file LICENSE in the top level
|
||||||
|
* directory for more details.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @ingroup drivers_adxl345
|
||||||
|
* @{
|
||||||
|
*
|
||||||
|
* @file
|
||||||
|
* @brief Register and bit definitions for the ADXL345
|
||||||
|
*
|
||||||
|
* @author Dylan Laduranty <dylan.laduranty@mesotic.com>
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef ADXL345_REGS_H
|
||||||
|
#define ADXL345_REGS_H
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/** \name Register addresses
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
#define ACCEL_ADXL345_CHIP_ID_REG (0x00) /**< Device ID */
|
||||||
|
#define ACCEL_ADXL345_THRESH_TAP (0x1D) /**< Tap threshold */
|
||||||
|
#define ACCEL_ADXL345_OFFSET_X (0x1E) /**< X-axis offset */
|
||||||
|
#define ACCEL_ADXL345_OFFSET_Y (0x1F) /**< Y-axis offset */
|
||||||
|
#define ACCEL_ADXL345_OFFSET_Z (0x20) /**< Z-axis offset */
|
||||||
|
#define ACCEL_ADXL345_TAP_DUR (0x21) /**< Tap duration */
|
||||||
|
#define ACCEL_ADXL345_TAP_LAT (0x22) /**< Tap latency */
|
||||||
|
#define ACCEL_ADXL345_TAP_WIN (0x23) /**< Tap window */
|
||||||
|
#define ACCEL_ADXL345_THRESH_ACT (0x24) /**< Activity threshold */
|
||||||
|
#define ACCEL_ADXL345_THRESH_INACT (0x25) /**< Inactivity threshold */
|
||||||
|
#define ACCEL_ADXL345_TIME_INACT (0x26) /**< Inactivity time */
|
||||||
|
#define ACCEL_ADXL345_ACT_INACT_CTL (0x27) /**< Axis enable control for activity and inactivity detection */
|
||||||
|
#define ACCEL_ADXL345_THRESH_FF (0x28) /**< Free-fall threshold */
|
||||||
|
#define ACCEL_ADXL345_TIME_FF (0x29) /**< Free-fall time */
|
||||||
|
#define ACCEL_ADXL345_TAP_AXES (0x2A) /**< Axis control for single tap/double tap */
|
||||||
|
#define ACCEL_ADXL345_ACT_TAP_STATUS (0x2B) /**< Source of single tap/double tap */
|
||||||
|
#define ACCEL_ADXL345_BW_RATE (0x2C) /**< Data rate and power mode control */
|
||||||
|
#define ACCEL_ADXL345_POWER_CTL (0x2D) /**< Power-saving features control */
|
||||||
|
#define ACCEL_ADXL345_INT_ENABLE (0x2E) /**< Interrupt enable control */
|
||||||
|
#define ACCEL_ADXL345_INT_MAP (0x2F) /**< Interrupt mapping control */
|
||||||
|
#define ACCEL_ADXL345_INT_SOURCE (0x30) /**< Source of interrupts */
|
||||||
|
#define ACCEL_ADXL345_DATA_FORMAT (0x31) /**< Data format control */
|
||||||
|
#define ACCEL_ADXL345_DATA_X0 (0x32) /**< X-Axis Data 0 */
|
||||||
|
#define ACCEL_ADXL345_DATA_X1 (0x33) /**< X-Axis Data 1 */
|
||||||
|
#define ACCEL_ADXL345_DATA_Y0 (0x34) /**< Y-Axis Data 0 */
|
||||||
|
#define ACCEL_ADXL345_DATA_Y1 (0x35) /**< Y-Axis Data 1 */
|
||||||
|
#define ACCEL_ADXL345_DATA_Z0 (0x36) /**< Z-Axis Data 0 */
|
||||||
|
#define ACCEL_ADXL345_DATA_Z1 (0x37) /**< Z-Axis Data 1 */
|
||||||
|
#define ACCEL_ADXL345_FIFO_CTL (0x38) /**< FIFO control */
|
||||||
|
#define ACCEL_ADXL345_FIFO_STATUS (0x39) /**< FIFO status */
|
||||||
|
/** @} */
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @name Device ID for ADXL345
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
#define ACCEL_ADXL345_CHIP_ID (0xE5)
|
||||||
|
/** @} */
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @name Resolution masks for output data
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
#define RES_10_BITS (0x03FF)
|
||||||
|
#define RES_11_BITS (0x07FF)
|
||||||
|
#define RES_12_BITS (0x0FFF)
|
||||||
|
#define RES_13_BITS (0x1FFF)
|
||||||
|
/** @} */
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @name bits definitions for ACT_INACT_CTL register
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
#define INACT_Z_ENABLE (1 << 0)
|
||||||
|
#define INACT_Y_ENABLE (1 << 1)
|
||||||
|
#define INACT_X_ENABLE (1 << 2)
|
||||||
|
#define INACT_ACDC (1 << 3)
|
||||||
|
#define ACT_Z_ENABLE (1 << 4)
|
||||||
|
#define ACT_Y_ENABLE (1 << 5)
|
||||||
|
#define ACT_X_ENABLE (1 << 6)
|
||||||
|
#define ACT_ACDC (1 << 7)
|
||||||
|
/** @} */
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @name bits definitions for TAP_AXES register
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
#define TAP_Z_ENABLE (1 << 0)
|
||||||
|
#define TAP_Y_ENABLE (1 << 1)
|
||||||
|
#define TAP_X_ENABLE (1 << 2)
|
||||||
|
#define SUPPRESS (1 << 3)
|
||||||
|
#define TAP_ALL_ENABLE (TAP_Z_ENABLE|TAP_Y_ENABLE|TAP_X_ENABLE)
|
||||||
|
/** @} */
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @name bits definitions for ACT_TAP_STATUS register
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
#define TAP_Z_SRC (1 << 0)
|
||||||
|
#define TAP_Y_SRC (1 << 1)
|
||||||
|
#define TAP_X_SRC (1 << 2)
|
||||||
|
#define ASLEEP (1 << 3)
|
||||||
|
#define ACT_Z_SRC (1 << 4)
|
||||||
|
#define ACT_Y_SRC (1 << 5)
|
||||||
|
#define ACT_X_SRC (1 << 6)
|
||||||
|
/** @} */
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @name bits definitions for BW_RATE register
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
#define RATE_MASK (0x0F)
|
||||||
|
#define LOWPOWER (1 << 4)
|
||||||
|
/** @} */
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @name bits definitions for PWR_CTL register
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
#define WAKEUP_8HZ (0x00)
|
||||||
|
#define WAKEUP_4HZ (0x01)
|
||||||
|
#define WAKEUP_2HZ (0x02)
|
||||||
|
#define WAKEUP_1HZ (0x03)
|
||||||
|
#define SLEEP_BIT (1 << 2)
|
||||||
|
#define MEASURE_BIT (1 << 3)
|
||||||
|
#define AUTOSLEEP_BIT (1 << 4)
|
||||||
|
#define LINK_BIT (1 << 5)
|
||||||
|
/** @} */
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @name interrupts pins definitions for INT_ENABLE, INT_MAP and INT_SOURCE
|
||||||
|
* registers
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
#define OVERRUN (1 << 0)
|
||||||
|
#define WATERMARK (1 << 1)
|
||||||
|
#define FREEFALL (1 << 2)
|
||||||
|
#define INACTIVITY (1 << 3)
|
||||||
|
#define ACTIVITY (1 << 4)
|
||||||
|
#define DOUBLE_TAP (1 << 5)
|
||||||
|
#define SINGLE_TAP (1 << 6)
|
||||||
|
#define DATA_READY (1 << 7)
|
||||||
|
/** @} */
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @name bits definitions for DATA_FORMAT register
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
#define RANGE_MASK (0x03)
|
||||||
|
#define JUSTIFY (1 << 2)
|
||||||
|
#define FULL_RES (1 << 3)
|
||||||
|
#define INT_INVERT (1 << 5)
|
||||||
|
#define SPI_BIT (1 << 6)
|
||||||
|
#define SELF_TEST (1 << 7)
|
||||||
|
/** @} */
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @name bits definitions for FIFO_CTL register
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
#define SAMPLES_MASK (0x0F)
|
||||||
|
#define FIFO_TRIGGER_POS (4)
|
||||||
|
#define FIFO_TRIGGER (1 << FIFO_TRIGGER_POS)
|
||||||
|
#define FIFO_MODE_POS (6)
|
||||||
|
#define FIFO_MODE_MASK (0xC0)
|
||||||
|
/** @} */
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @name bits definitions for FIFO_STATUS register
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
#define FIFO_ENTRIES_MASK (0x3F)
|
||||||
|
#define FIFO_TRIG (1 << 7)
|
||||||
|
/** @} */
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif /* ADXL345_REGS_H */
|
||||||
|
/** @} */
|
||||||
233
drivers/include/adxl345.h
Normal file
233
drivers/include/adxl345.h
Normal file
@ -0,0 +1,233 @@
|
|||||||
|
/*
|
||||||
|
* Copyright (C) 2017 Mesotic SAS
|
||||||
|
*
|
||||||
|
* This file is subject to the terms and conditions of the GNU Lesser
|
||||||
|
* General Public License v2.1. See the file LICENSE in the top level
|
||||||
|
* directory for more details.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @defgroup drivers_adxl345 ADXL345 3-Axis accelerometer
|
||||||
|
* @ingroup drivers_sensors
|
||||||
|
* @brief Device driver interface for the ADXL345
|
||||||
|
* @{
|
||||||
|
*
|
||||||
|
* @file
|
||||||
|
* @brief Interface definition for the ADXL345
|
||||||
|
*
|
||||||
|
* @author Dylan Laduranty <dylan.laduranty@mesotic.com>
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifndef ADXL345_H
|
||||||
|
#define ADXL345_H
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
extern "C" {
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include "periph/i2c.h"
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Possible ADXL345 hardware addresses (wiring specific)
|
||||||
|
*/
|
||||||
|
enum {
|
||||||
|
ADXL345_ADDR_1D = 0x1D, /**< I2C device address if SDO / Alt address pin is high */
|
||||||
|
ADXL345_ADDR_53 = 0x53, /**< I2C device address if SDO / Alt address pin is low */
|
||||||
|
};
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Define ADXL345 sensitivity
|
||||||
|
*/
|
||||||
|
enum {
|
||||||
|
ADXL345_RANGE_2G, /**< +/- 2 g Full Scale Rang */
|
||||||
|
ADXL345_RANGE_4G, /**< +/- 4 g Full Scale Rang */
|
||||||
|
ADXL345_RANGE_8G, /**< +/- 8 g Full Scale Rang */
|
||||||
|
ADXL345_RANGE_16G /**< +/- 16 g Full Scale Rang */
|
||||||
|
};
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief List bandwidth rate
|
||||||
|
*/
|
||||||
|
enum {
|
||||||
|
ADXL345_RATE_0HZ1 = 0, /**< 0.1 Hz Output Data Rate */
|
||||||
|
ADXL345_RATE_0HZ2 = 1, /**< 0.2 Hz Output Data Rate */
|
||||||
|
ADXL345_RATE_0HZ39 = 2, /**< 0.39 Hz Output Data Rate */
|
||||||
|
ADXL345_RATE_0HZ78 = 3, /**< 0.78 Hz Output Data Rate */
|
||||||
|
ADXL345_RATE_1HZ56 = 4, /**< 1.56 Hz Output Data Rate */
|
||||||
|
ADXL345_RATE_3HZ13 = 5, /**< 3.13 Hz Output Data Rate */
|
||||||
|
ADXL345_RATE_6HZ25 = 6, /**< 6.25 Hz Output Data Rate */
|
||||||
|
ADXL345_RATE_12HZ50 = 7, /**< 12.5 Hz Output Data Rate */
|
||||||
|
ADXL345_RATE_25HZ = 8, /**< 25 Hz Output Data Rate */
|
||||||
|
ADXL345_RATE_50HZ = 9, /**< 50 Hz Output Data Rate */
|
||||||
|
ADXL345_RATE_100HZ = 10, /**< 100 Hz Output Data Rate */
|
||||||
|
ADXL345_RATE_200HZ = 11, /**< 200 Hz Output Data Rate */
|
||||||
|
ADXL345_RATE_400HZ = 12, /**< 400 Hz Output Data Rate */
|
||||||
|
ADXL345_RATE_800HZ = 13, /**< 800 Hz Output Data Rate */
|
||||||
|
ADXL345_RATE_1600HZ = 14, /**< 1600 Hz Output Data Rate */
|
||||||
|
ADXL345_RATE_3200HZ = 15 /**< 3200 Hz Output Data Rate */
|
||||||
|
};
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief List fifo mode
|
||||||
|
*/
|
||||||
|
enum {
|
||||||
|
BYPASS = 0, /**< FIFO bypass mode */
|
||||||
|
FIFO = 1, /**< FIFO mode */
|
||||||
|
STREAM = 2, /**< FIFO stream mode */
|
||||||
|
TRIGGER = 3 /**< FIFO trigger mode */
|
||||||
|
};
|
||||||
|
/**
|
||||||
|
* @brief Output Interrupt selection
|
||||||
|
*/
|
||||||
|
enum {
|
||||||
|
INT1, /**< Output interrupt on INT1 pin */
|
||||||
|
INT2 /**< Output interrupt on INT2 pin */
|
||||||
|
};
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Named return values
|
||||||
|
*/
|
||||||
|
enum {
|
||||||
|
ADXL345_OK = 0, /**< everything was fine */
|
||||||
|
ADXL345_DATA_READY = 1, /**< new data ready to be read */
|
||||||
|
ADXL345_NOI2C = -1, /**< I2C communication failed */
|
||||||
|
ADXL345_NODEV = -2, /**< no ADXL345 device found on the bus */
|
||||||
|
ADXL345_NODATA = -3 /**< no data available */
|
||||||
|
};
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief ADXL345 result vector struct
|
||||||
|
*/
|
||||||
|
typedef struct {
|
||||||
|
int16_t x; /**< X-Axis measurement result */
|
||||||
|
int16_t y; /**< Y-Axis measurement result */
|
||||||
|
int16_t z; /**< Z-Axis measurement result */
|
||||||
|
} adxl345_data_t;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Interrupt configuration struct for the ADXL345 sensor
|
||||||
|
*/
|
||||||
|
typedef struct {
|
||||||
|
uint8_t source; /**< Source of interrupts */
|
||||||
|
uint8_t map; /**< Interrupt mapping control */
|
||||||
|
uint8_t enable; /**< Interrupt enable control */
|
||||||
|
uint8_t thres_tap; /**< Tap threshold */
|
||||||
|
uint8_t thres_dur; /**< Tap duration */
|
||||||
|
uint8_t thres_latent; /**< Tap latency */
|
||||||
|
uint8_t thres_window; /**< Tap window */
|
||||||
|
uint8_t thres_act; /**< Activity threshold */
|
||||||
|
uint8_t thres_inact; /**< Inactivity threshold */
|
||||||
|
uint8_t time_inact; /**< Inactivity time */
|
||||||
|
uint8_t thres_ff; /**< Free-fall threshold */
|
||||||
|
uint8_t time_ff; /**< Time threshold */
|
||||||
|
uint8_t act_inact; /**< Axis enable control for activity and inactivity detection */
|
||||||
|
uint8_t tap_axes; /**< Axis control for single tap/double tap */
|
||||||
|
} adxl345_interrupt_t;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Configuration struct for the ADXL345 sensor
|
||||||
|
*/
|
||||||
|
typedef struct {
|
||||||
|
i2c_t i2c; /**< I2C device which is used */
|
||||||
|
uint8_t addr; /**< I2C address */
|
||||||
|
adxl345_interrupt_t interrupt; /**< Interrupts configuration */
|
||||||
|
uint8_t offset[3]; /**< offset axis */
|
||||||
|
uint8_t range; /**< Sensitivity configuration */
|
||||||
|
uint8_t rate; /**< Configured sample rate for accel */
|
||||||
|
uint8_t full_res; /**< Resolution bit */
|
||||||
|
uint8_t scale_factor; /**< Scale factor for converting value to mg */
|
||||||
|
} adxl345_params_t;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Device descriptor for the ADXL345 sensor
|
||||||
|
*/
|
||||||
|
typedef struct {
|
||||||
|
adxl345_params_t params; /**< Device configuration */
|
||||||
|
} adxl345_t;
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Initialize the ADXL345 accelerometer driver.
|
||||||
|
*
|
||||||
|
* @param[out] dev device descriptor of accelerometer to initialize
|
||||||
|
* @param[in] params configuration parameters
|
||||||
|
*
|
||||||
|
* @return ADXL345_OK on success
|
||||||
|
* @return ADXL345_NOI2C if initialization of I2C bus failed
|
||||||
|
* @return ADXL345_NODEV if accelerometer test failed
|
||||||
|
*/
|
||||||
|
int adxl345_init(adxl345_t *dev, const adxl345_params_t* params);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Read accelerometer's data
|
||||||
|
*
|
||||||
|
* Acceleration will be calculated as:<br>
|
||||||
|
* \f$ accel = {value \times 3.9} \f$ if full scale is set to 2g<br>
|
||||||
|
* \f$ accel = {value \times 7.8} \f$ if full scale is set to 4g<br>
|
||||||
|
* \f$ accel = {value \times 15.6} \f$ if full scale is set to 8g<br>
|
||||||
|
* \f$ accel = {value \times 31.2} \f$ if full scale is set to 16g<br>
|
||||||
|
*
|
||||||
|
* @param[in] dev device descriptor of accelerometer
|
||||||
|
* @param[out] data the current acceleration data [in mg]
|
||||||
|
*/
|
||||||
|
void adxl345_read(adxl345_t *dev, adxl345_data_t *data);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief set ADXL345's interrupts configuration
|
||||||
|
*
|
||||||
|
* @param[in] dev device descriptor of accelerometer
|
||||||
|
*/
|
||||||
|
void adxl345_set_interrupt(adxl345_t *dev);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief set ADXL345's measure mode
|
||||||
|
*
|
||||||
|
* @param[in] dev device descriptor of accelerometer
|
||||||
|
*/
|
||||||
|
void adxl345_set_measure(adxl345_t *dev);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Set standby mode
|
||||||
|
*
|
||||||
|
* @param[in] dev device descriptor of accelerometer
|
||||||
|
*/
|
||||||
|
void adxl345_set_standby(adxl345_t *dev);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Set sleep mode
|
||||||
|
*
|
||||||
|
* @param[in] dev device descriptor of accelerometer
|
||||||
|
*/
|
||||||
|
void adxl345_set_sleep(adxl345_t *dev);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Set autosleep mode
|
||||||
|
*
|
||||||
|
* @param[in] dev device descriptor of accelerometer
|
||||||
|
*/
|
||||||
|
void adxl345_set_autosleep(adxl345_t *dev);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Set bandwidth rate
|
||||||
|
*
|
||||||
|
* @param[in] dev device descriptor of accelerometer
|
||||||
|
* @param[in] bw_rate new datarate
|
||||||
|
*/
|
||||||
|
void adxl345_set_bandwidth_rate(adxl345_t *dev, uint8_t bw_rate);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Set fifo mode with its configuration.
|
||||||
|
*
|
||||||
|
* @param[in] dev device descriptor of accelerometer
|
||||||
|
* @param[in] mode fifo mode configuration
|
||||||
|
* @param[in] output set trigger output
|
||||||
|
* @param[in] value set trigger's value
|
||||||
|
*/
|
||||||
|
void adxl345_set_fifo_mode(adxl345_t *dev, uint8_t mode,
|
||||||
|
uint8_t output, uint8_t value);
|
||||||
|
|
||||||
|
#ifdef __cplusplus
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif /* ADXL345_H */
|
||||||
|
/** @} */
|
||||||
@ -319,6 +319,10 @@ void auto_init(void)
|
|||||||
extern void auto_init_veml6070(void);
|
extern void auto_init_veml6070(void);
|
||||||
auto_init_veml6070();
|
auto_init_veml6070();
|
||||||
#endif
|
#endif
|
||||||
|
#ifdef MODULE_ADXL345
|
||||||
|
extern void auto_init_adxl345(void);
|
||||||
|
auto_init_adxl345();
|
||||||
|
#endif
|
||||||
|
|
||||||
#endif /* MODULE_AUTO_INIT_SAUL */
|
#endif /* MODULE_AUTO_INIT_SAUL */
|
||||||
|
|
||||||
|
|||||||
70
sys/auto_init/saul/auto_init_adxl345.c
Normal file
70
sys/auto_init/saul/auto_init_adxl345.c
Normal file
@ -0,0 +1,70 @@
|
|||||||
|
/*
|
||||||
|
* Copyright (C) 2017 Mesotic SAS
|
||||||
|
*
|
||||||
|
* This file is subject to the terms and conditions of the GNU Lesser
|
||||||
|
* General Public License v2.1. See the file LICENSE in the top level
|
||||||
|
* directory for more details.
|
||||||
|
*
|
||||||
|
*/
|
||||||
|
|
||||||
|
/*
|
||||||
|
* @ingroup auto_init_saul
|
||||||
|
* @{
|
||||||
|
*
|
||||||
|
* @file
|
||||||
|
* @brief Auto initialization of ADXL345 accelerometer
|
||||||
|
*
|
||||||
|
* @author Dylan Laduranty <dylan.laduranty@mesotic.com>
|
||||||
|
*
|
||||||
|
* @}
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifdef MODULE_ADXL345
|
||||||
|
|
||||||
|
#include "log.h"
|
||||||
|
#include "saul_reg.h"
|
||||||
|
#include "adxl345.h"
|
||||||
|
#include "adxl345_params.h"
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Define the number of configured sensors
|
||||||
|
*/
|
||||||
|
#define ADXL345_NUM (sizeof(adxl345_params)/sizeof(adxl345_params[0]))
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Allocate memory for the device descriptors
|
||||||
|
*/
|
||||||
|
static adxl345_t adxl345_devs[ADXL345_NUM];
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Memory for the SAUL registry entries
|
||||||
|
*/
|
||||||
|
static saul_reg_t saul_entries[ADXL345_NUM];
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Reference the driver structs
|
||||||
|
* @{
|
||||||
|
*/
|
||||||
|
extern saul_driver_t adxl345_saul_driver;
|
||||||
|
/** @} */
|
||||||
|
|
||||||
|
void auto_init_adxl345(void)
|
||||||
|
{
|
||||||
|
for (unsigned i = 0; i < ADXL345_NUM; i++) {
|
||||||
|
LOG_DEBUG("[auto_init_saul] initializing adxl345 #%u\n", i);
|
||||||
|
|
||||||
|
if (adxl345_init(&adxl345_devs[i], &adxl345_params[i]) != ADXL345_OK) {
|
||||||
|
LOG_ERROR("[auto_init_saul] error initializing adxl345 #%u\n", i);
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
saul_entries[i].dev = &(adxl345_devs[i]);
|
||||||
|
saul_entries[i].name = adxl345_saul_info[i].name;
|
||||||
|
saul_entries[i].driver = &adxl345_saul_driver;
|
||||||
|
saul_reg_add(&(saul_entries[i]));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#else
|
||||||
|
typedef int dont_be_pedantic;
|
||||||
|
#endif /* MODULE_ADXL345 */
|
||||||
Loading…
Reference in New Issue
Block a user