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drivers: sys: add SAUL support for ds75lx sensor

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Alexandre Abadie 2019-05-15 22:03:36 +02:00
parent 69a38f8b7b
commit a7f8182249
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GPG Key ID: 1C919A403CAE1405
5 changed files with 140 additions and 0 deletions
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44
drivers/ds75lx/ds75lx_saul.c Normal file
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@ -0,0 +1,44 @@
/*
* Copyright (C) 2019 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_ds75lx
* @{
*
* @file
* @brief SAUL adaption for DS75LX device
*
* @author Alexandre Abadie <alexandre.abadie@inria.fr>
*
* @}
*/
#include <string.h>
#include "saul.h"
#include "ds75lx.h"
static int read_temperature(const void *dev, phydat_t *res)
{
ds75lx_wakeup((const ds75lx_t *)dev);
if (ds75lx_read_temperature((const ds75lx_t *)dev, &res->val[0]) != DS75LX_OK) {
ds75lx_shutdown((const ds75lx_t *)dev);
return -ECANCELED;
}
ds75lx_shutdown((const ds75lx_t *)dev);
res->unit = UNIT_TEMP_C;
res->scale = -2;
return 1;
}
const saul_driver_t ds75lx_temperature_saul_driver = {
.read = read_temperature,
.write = saul_notsup,
.type = SAUL_SENSE_TEMP
};

11
drivers/ds75lx/include/ds75lx_params.h
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@ -47,6 +47,9 @@ extern "C" {
.addr = DS75LX_PARAM_I2C_ADDR, \
.resolution = DS75LX_PARAM_RESOLUTION }
#endif
#ifndef DS75LX_SAUL_INFO
#define DS75LX_SAUL_INFO { .name = "ds75lx" }
#endif
/**@}*/
/**
@ -57,6 +60,14 @@ static const ds75lx_params_t ds75lx_params[] =
DS75LX_PARAMS
};
/**
* @brief Configure SAUL registry entries
*/
static const saul_reg_info_t ds75lx_saul_info[] =
{
DS75LX_SAUL_INFO
};
#ifdef __cplusplus
}
#endif

2
drivers/include/ds75lx.h
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@ -9,8 +9,10 @@
/**
* @defgroup drivers_ds75lx Maxim DS75LX temperature sensor
* @ingroup drivers_sensors
* @ingroup drivers_saul
* @brief Device driver interface for the Maxim DS75LX temperature sensor
*
* This driver provides @ref drivers_saul capabilities.
* @{
*
* @file

4
sys/auto_init/auto_init.c
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@ -365,6 +365,10 @@ void auto_init(void)
extern void auto_init_ds18(void);
auto_init_ds18();
#endif
#ifdef MODULE_DS75LX
extern void auto_init_ds75lx(void);
auto_init_ds75lx();
#endif
#ifdef MODULE_FXOS8700
extern void auto_init_fxos8700(void);
auto_init_fxos8700();

79
sys/auto_init/saul/auto_init_ds75lx.c Normal file
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@ -0,0 +1,79 @@
/*
* Copyright (C) 2019 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 sys_auto_init_saul
* @{
*
* @file
* @brief Auto initialization of DS75LX driver.
*
* @author Alexandre Abadie <alexandre.abadie@inria.fr>
*
* @}
*/
#ifdef MODULE_DS75LX
#include "assert.h"
#include "log.h"
#include "saul_reg.h"
#include "ds75lx.h"
#include "ds75lx_params.h"
/**
* @brief Define the number of configured sensors
*/
#define DS75LX_NUM (sizeof(ds75lx_params) / sizeof(ds75lx_params[0]))
/**
* @brief Allocation of memory for device descriptors
*/
static ds75lx_t ds75lx_devs[DS75LX_NUM];
/**
* @brief Memory for the SAUL registry entries
*/
static saul_reg_t saul_entries[DS75LX_NUM];
/**
* @brief Define the number of saul info
*/
#define DS75LX_INFO_NUM (sizeof(ds75lx_saul_info) / sizeof(ds75lx_saul_info[0]))
/**
* @name Reference the driver structs.
* @{
*/
extern const saul_driver_t ds75lx_temperature_saul_driver;
/** @} */
void auto_init_ds75lx(void)
{
assert(DS75LX_INFO_NUM == DS75LX_NUM);
for (unsigned i = 0; i < DS75LX_NUM; i++) {
LOG_DEBUG("[auto_init_saul] initializing ds75lx #%u\n", i);
if (ds75lx_init(&ds75lx_devs[i],
&ds75lx_params[i]) != DS75LX_OK) {
LOG_ERROR("[auto_init_saul] error initializing ds75lx #%u\n", i);
continue;
}
saul_entries[i].dev = &(ds75lx_devs[i]);
saul_entries[i].name = ds75lx_saul_info[i].name;
saul_entries[i].driver = &ds75lx_temperature_saul_driver;
/* register to saul */
saul_reg_add(&(saul_entries[i]));
}
}
#else
typedef int dont_be_pedantic;
#endif /* MODULE_DS75LX */