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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.
96 lines
2.3 KiB
C
96 lines
2.3 KiB
C
/*
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* Copyright (C) 2018 Gunar Schorcht
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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_apds99xx
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* @brief APDS99XX adaption to the RIOT actuator/sensor interface
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* @author Gunar Schorcht <gunar@schorcht.net>
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* @file
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*/
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#include <string.h>
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#include "saul.h"
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#include "apds99xx.h"
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static int read_prx(const void *dev, phydat_t *res)
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{
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if (apds99xx_read_prx_raw((const apds99xx_t *)dev, (uint16_t*)res) == 0) {
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res->unit = UNIT_CTS;
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res->scale = 0;
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return 1;
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}
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return -ECANCELED;
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}
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static int read_als(const void *dev, phydat_t *res)
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{
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if (apds99xx_read_als_raw((const apds99xx_t *)dev, (uint16_t*)res) == 0) {
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res->unit = UNIT_CTS;
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res->scale = 0;
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return 1;
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}
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return -ECANCELED;
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}
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#if MODULE_APDS9900 || MODULE_APDS9901 || MODULE_APDS9930
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static int read_lux(const void *dev, phydat_t *res)
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{
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if (apds99xx_read_illuminance((const apds99xx_t *)dev, (uint16_t*)res) == 0) {
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res->unit = UNIT_LUX;
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res->scale = 0;
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return 1;
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}
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return -ECANCELED;
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}
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#endif
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#if MODULE_APDS9950 || MODULE_APDS9960
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static int read_rgb(const void *dev, phydat_t *res)
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{
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apds99xx_rgb_t rgb;
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if (apds99xx_read_rgb_raw((const apds99xx_t *)dev, &rgb) == 0) {
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res->val[0] = (int16_t)rgb.red;
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res->val[1] = (int16_t)rgb.green;
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res->val[2] = (int16_t)rgb.blue;
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res->unit = UNIT_CTS;
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res->scale = 0;
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return 3;
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}
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return -ECANCELED;
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}
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#endif
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const saul_driver_t apds99xx_saul_prx_driver = {
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.read = read_prx,
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.write = saul_write_notsup,
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.type = SAUL_SENSE_PROXIMITY,
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};
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const saul_driver_t apds99xx_saul_als_driver = {
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.read = read_als,
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.write = saul_write_notsup,
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.type = SAUL_SENSE_LIGHT,
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};
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#if MODULE_APDS9900 || MODULE_APDS9901 || MODULE_APDS9930
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const saul_driver_t apds99xx_saul_lux_driver = {
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.read = read_lux,
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.write = saul_write_notsup,
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.type = SAUL_SENSE_LIGHT,
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};
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#endif
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#if MODULE_APDS9950 || MODULE_APDS9960
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const saul_driver_t apds99xx_saul_rgb_driver = {
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.read = read_rgb,
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.write = saul_write_notsup,
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.type = SAUL_SENSE_LIGHT,
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};
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#endif
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