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RIOT/drivers/si114x/si114x_saul.c
Marian Buschsieweke 16f859dafd
drivers/saul: use const qualifier for data to write
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.
2022-05-23 08:35:27 +02:00

88 lines
1.8 KiB
C

/*
* Copyright (C) 2016-2018 Inria
*
* 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_si114x
* @{
*
* @file
* @brief SAUL adaption for Si114x devices family
*
* @author Alexandre Abadie <alexandre.abadie@inria.fr>
* Bas Stottelaar <basstottelaar@gmail.com>
*
* @}
*/
#include "saul.h"
#include "si114x.h"
static int read_uv(const void *dev, phydat_t *res)
{
si114x_t *d = (si114x_t *)dev;
res->val[0] = si114x_read_uv(d);
res->unit = UNIT_NONE;
res->scale = 0;
return 1;
}
static int read_ir(const void *dev, phydat_t *res)
{
si114x_t *d = (si114x_t *)dev;
res->val[0] = si114x_read_ir(d);
res->unit = UNIT_LUX;
res->scale = 0;
return 1;
}
static int read_visible(const void *dev, phydat_t *res)
{
si114x_t *d = (si114x_t *)dev;
res->val[0] = si114x_read_visible(d);
res->unit = UNIT_LUX;
res->scale = 0;
return 1;
}
static int read_distance(const void *dev, phydat_t *res)
{
si114x_t *d = (si114x_t *)dev;
res->val[0] = si114x_read_distance(d);
res->unit = UNIT_NONE;
res->scale = 0;
return 1;
}
const saul_driver_t si114x_uv_saul_driver = {
.read = read_uv,
.write = saul_write_notsup,
.type = SAUL_SENSE_UV
};
const saul_driver_t si114x_ir_saul_driver = {
.read = read_ir,
.write = saul_write_notsup,
.type = SAUL_SENSE_LIGHT
};
const saul_driver_t si114x_visible_saul_driver = {
.read = read_visible,
.write = saul_write_notsup,
.type = SAUL_SENSE_LIGHT
};
const saul_driver_t si114x_distance_saul_driver = {
.read = read_distance,
.write = saul_write_notsup,
.type = SAUL_SENSE_DISTANCE
};