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16f859dafd
This makes life easier when calling e.g. `saul_reg_write()` with data stored in flash. As now the signatures for reading and writing differ (in that `const` qualifier only), `saul_notsup()` is split into `saul_write_notsup()` and `saul_read_notsup()`. However, one is implemented as a symbol alias of the other, so that ROM consumption remains unchanged.
176 lines
3.6 KiB
C
176 lines
3.6 KiB
C
/*
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* Copyright (C) 2021 Inria
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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_hm330x
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* @{
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* @file
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* @brief SAUL adaption of the HM330X particulate matter sensor
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*
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* @author Francisco Molina <francois-xavier.molina@inria.fr>
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* @}
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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#include "phydat.h"
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#include "saul.h"
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#include "hm330x.h"
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#include "hm330x_params.h"
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#include "hm330x_constants.h"
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static int read_mc_pm_1(const void *_dev, phydat_t *data)
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{
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hm330x_t *dev = (hm330x_t *)_dev;
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hm330x_data_t values;
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hm330x_read(dev, &values);
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data->unit = UNIT_GPM3;
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data->scale = -6;
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uint32_t value;
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if (IS_ACTIVE(CONFIG_HM330X_INDOOR_ENVIRONMENT)) {
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value = values.mc_pm_1;
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}
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else {
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value = values.amc_pm_1;
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}
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phydat_fit(data, (int32_t *)&value, 1);
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return 1;
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}
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static int read_mc_pm_2p5(const void *_dev, phydat_t *data)
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{
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hm330x_t *dev = (hm330x_t *)_dev;
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hm330x_data_t values;
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hm330x_read(dev, &values);
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data->unit = UNIT_GPM3;
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data->scale = -6;
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uint32_t value;
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if (IS_ACTIVE(CONFIG_HM330X_INDOOR_ENVIRONMENT)) {
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value = values.mc_pm_2p5;
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}
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else {
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value = values.amc_pm_2p5;
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}
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phydat_fit(data, (int32_t *)&value, 1);
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return 1;
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}
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static int read_mc_pm_10(const void *_dev, phydat_t *data)
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{
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hm330x_t *dev = (hm330x_t *)_dev;
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hm330x_data_t values;
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hm330x_read(dev, &values);
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data->unit = UNIT_GPM3;
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data->scale = -6;
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uint32_t value;
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if (IS_ACTIVE(CONFIG_HM330X_INDOOR_ENVIRONMENT)) {
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value = values.mc_pm_10;
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}
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else {
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value = values.amc_pm_10;
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}
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phydat_fit(data, (int32_t *)&value, 1);
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return 1;
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}
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#if IS_USED(MODULE_HM3302)
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static int read_nc_pm_1(const void *_dev, phydat_t *data)
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{
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hm330x_t *dev = (hm330x_t *)_dev;
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hm330x_data_t values;
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hm330x_read(dev, &values);
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data->unit = UNIT_CPM3;
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data->scale = 4;
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uint32_t value = values.nc_pm_1;
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phydat_fit(data, (int32_t *)&value, 1);
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return 1;
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}
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static int read_nc_pm_2p5(const void *_dev, phydat_t *data)
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{
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hm330x_t *dev = (hm330x_t *)_dev;
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hm330x_data_t values;
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hm330x_read(dev, &values);
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data->unit = UNIT_CPM3;
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data->scale = 4;
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uint32_t value = values.nc_pm_2p5;
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phydat_fit(data, (int32_t *)&value, 1);
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return 1;
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}
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static int read_nc_pm_10(const void *_dev, phydat_t *data)
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{
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hm330x_t *dev = (hm330x_t *)_dev;
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hm330x_data_t values;
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hm330x_read(dev, &values);
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data->unit = UNIT_CPM3;
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data->scale = 4;
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uint32_t value = values.nc_pm_10;
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phydat_fit(data, (int32_t *)&value, 1);
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return 1;
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}
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#endif
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const saul_driver_t hm330x_saul_driver_mc_pm_1 = {
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.read = read_mc_pm_1,
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.write = saul_write_notsup,
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.type = SAUL_SENSE_PM
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};
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const saul_driver_t hm330x_saul_driver_mc_pm_2p5 = {
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.read = read_mc_pm_2p5,
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.write = saul_write_notsup,
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.type = SAUL_SENSE_PM
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};
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const saul_driver_t hm330x_saul_driver_mc_pm_10 = {
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.read = read_mc_pm_10,
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.write = saul_write_notsup,
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.type = SAUL_SENSE_PM
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};
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#if IS_USED(MODULE_HM3302)
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const saul_driver_t hm330x_saul_driver_nc_pm_1 = {
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.read = read_nc_pm_1,
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.write = saul_write_notsup,
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.type = SAUL_SENSE_COUNT
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};
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const saul_driver_t hm330x_saul_driver_nc_pm_2p5 = {
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.read = read_nc_pm_2p5,
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.write = saul_write_notsup,
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.type = SAUL_SENSE_COUNT
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};
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const saul_driver_t hm330x_saul_driver_nc_pm_10 = {
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.read = read_nc_pm_10,
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.write = saul_write_notsup,
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.type = SAUL_SENSE_COUNT
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};
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#endif
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