/****************************************************************************
* apps/examples/smps/smps_main.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdbool.h>
#include <errno.h>
#include <debug.h>
#include <sys/ioctl.h>
#include <sys/boardctl.h>
#include <nuttx/fs/fs.h>
#include <nuttx/power/smps.h>
#if defined(CONFIG_EXAMPLES_SMPS)
#ifndef CONFIG_DRIVERS_SMPS
# error "Smps example requires smps support"
#endif
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#ifndef CONFIG_LIBC_FLOATINGPOINT
# error "CONFIG_LIBC_FLOATINGPOINT must be set!"
#endif
#ifndef CONFIG_EXAMPLES_SMPS_TIME_DEFAULT
# define CONFIG_EXAMPLES_SMPS_TIME_DEFAULT 10
#endif
#ifndef CONFIG_EXAMPLES_SMPS_OUT_VOLTAGE_DEFAULT
# define CONFIG_EXAMPLES_SMPS_OUT_VOLTAGE_DEFAULT 0
#endif
#ifndef CONFIG_EXAMPLES_SMPS_OUT_CURRENT_DEFAULT
# define CONFIG_EXAMPLES_SMPS_OUT_CURRENT_DEFAULT 0
#endif
#ifndef CONFIG_EXAMPLES_SMPS_OUT_POWER_DEFAULT
# define CONFIG_EXAMPLES_SMPS_OUT_POWER_DEFAULT 0
#endif
#ifndef CONFIG_EXAMPLES_SMPS_OUT_VOLTAGE_LIMIT
# define CONFIG_EXAMPLES_SMPS_OUT_VOLTAGE_LIMIT 0
#endif
#ifndef CONFIG_EXAMPLES_SMPS_OUT_CURRENT_LIMIT
# define CONFIG_EXAMPLES_SMPS_OUT_CURRENT_LIMIT 0
#endif
#ifndef CONFIG_EXAMPLES_SMPS_OUT_POWER_LIMIT
# define CONFIG_EXAMPLES_SMPS_OUT_POWER_LIMIT 0
#endif
#ifndef CONFIG_EXAMPLES_SMPS_IN_VOLTAGE_LIMIT
# define CONFIG_EXAMPLES_SMPS_IN_VOLTAGE_LIMIT 0
#endif
#ifndef CONFIG_EXAMPLES_SMPS_IN_CURRENT_LIMIT
# define CONFIG_EXAMPLES_SMPS_IN_CURRENT_LIMIT 0
#endif
#ifndef CONFIG_EXAMPLES_SMPS_IN_POWER_LIMIT
# define CONFIG_EXAMPLES_SMPS_IN_POWER_LIMIT 0
#endif
/****************************************************************************
* Private Type Definition
****************************************************************************/
/* Application arguments */
struct args_s
{
int time; /* Run time limit in sec, -1 if forever */
float current; /* Output current for CC mode */
float voltage; /* Output voltage for CV mode */
float power; /* Output power for CP mode */
};
/****************************************************************************
* Private Function Protototypes
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
struct args_s g_args;
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: smps_help
****************************************************************************/
static void smps_help(FAR struct args_s *args)
{
printf("Usage: smps [OPTIONS]\n\n");
printf(" [-v voltage] output voltage in V\n");
printf(" valid values from 0.0 to output voltage limit\n");
printf(" [-c current] output current in A\n");
printf(" valid values from 0.0 to output current limit\n");
printf(" [-p power] output power in W\n");
printf(" valid values from 0.0 to output power limit\n");
printf(" [-t time] run time in seconds\n");
printf(" valid values greater than 0 and\n");
printf(" -1 for infinity [default]\n");
printf("\n");
}
/****************************************************************************
* Name: arg_string
****************************************************************************/
static int arg_string(FAR char **arg, FAR char **value)
{
FAR char *ptr = *arg;
if (ptr[2] == '\0')
{
*value = arg[1];
return 2;
}
else
{
*value = &ptr[2];
return 1;
}
}
/****************************************************************************
* Name: arg_decimal
****************************************************************************/
static int arg_decimal(FAR char **arg, FAR int *value)
{
FAR char *string;
int ret;
ret = arg_string(arg, &string);
*value = atoi(string);
return ret;
}
/****************************************************************************
* Name: arg_float
****************************************************************************/
static int arg_float(FAR char **arg, FAR float *value)
{
FAR char *string;
int ret;
ret = arg_string(arg, &string);
*value = atof(string);
return ret;
}
/****************************************************************************
* Name: parse_args
****************************************************************************/
static void parse_args(FAR struct args_s *args, int argc, FAR char **argv)
{
FAR char *ptr;
float f_value;
int i_value;
int index;
int nargs;
for (index = 1; index < argc; )
{
ptr = argv[index];
if (ptr[0] != '-')
{
printf("Invalid options format: %s\n", ptr);
exit(0);
}
switch (ptr[1])
{
/* Get voltage */
case 'v':
{
nargs = arg_float(&argv[index], &f_value);
index += nargs;
if (f_value <= 0.0 ||
(f_value * 1000 > CONFIG_EXAMPLES_SMPS_OUT_VOLTAGE_LIMIT))
{
printf("Invalid voltage %.2f\n", f_value);
exit(1);
}
args->voltage = f_value;
break;
}
/* Get current */
case 'i':
{
nargs = arg_float(&argv[index], &f_value);
index += nargs;
if (f_value <= 0.0 ||
(f_value * 1000 > CONFIG_EXAMPLES_SMPS_OUT_CURRENT_LIMIT))
{
printf("Invalid current %.2f\n", f_value);
exit(1);
}
args->current = f_value;
break;
}
/* Get power */
case 'p':
{
nargs = arg_float(&argv[index], &f_value);
index += nargs;
if (f_value <= 0.0 ||
(f_value * 1000 > CONFIG_EXAMPLES_SMPS_OUT_POWER_LIMIT))
{
printf("Invalid power %.2f\n", f_value);
exit(1);
}
args->power = f_value;
break;
}
/* Get time */
case 't':
{
nargs = arg_decimal(&argv[index], &i_value);
index += nargs;
if (i_value <= 0 && i_value != -1)
{
printf("Invalid time value %d s\n", i_value);
exit(1);
}
args->time = i_value;
break;
}
/* Print help message */
case 'h':
{
smps_help(args);
exit(0);
}
default:
{
printf("Unsupported option: %s\n", ptr);
smps_help(args);
exit(1);
}
}
}
}
/****************************************************************************
* Name: validate_args
****************************************************************************/
static int validate_args(FAR struct args_s *args)
{
int ret = OK;
if (args->current < 0 ||
args->current >
(((float)CONFIG_EXAMPLES_SMPS_OUT_CURRENT_LIMIT) / 1000.0))
{
printf("Not valid current value: %.2f\n", args->current);
goto errout;
}
if (args->voltage < 0 ||
args->voltage >
(((float)CONFIG_EXAMPLES_SMPS_OUT_VOLTAGE_LIMIT) / 1000.0))
{
printf("Not valid voltage value: %.2f\n", args->voltage);
goto errout;
}
if (args->power < 0 ||
args->power >
(((float)CONFIG_EXAMPLES_SMPS_OUT_POWER_LIMIT) / 1000.0))
{
printf("Not valid power value: %.2f\n", args->power);
goto errout;
}
errout:
return ret;
}
/****************************************************************************
* Name: feedback_print
****************************************************************************/
static void feedback_print(FAR struct smps_feedback_s *fb)
{
#ifdef CONFIG_SMPS_HAVE_INPUT_VOLTAGE
printf("v_out: %.3f\t", fb->v_out);
#endif
#ifdef CONFIG_SMPS_HAVE_OUTPUT_VOLTAGE
printf("v_in: %.3f\t", fb->v_in);
#endif
#ifdef CONFIG_SMPS_HAVE_OUTPUT_CURRENT
printf("i_out: %.3f\t", fb->i_out);
#endif
#ifdef CONFIG_SMPS_HAVE_INPUT_CURRENT
printf("i_in: %.3f\t", fb->i_in);
#endif
#ifdef CONFIG_SMPS_HAVE_OUTPUT_POWER
printf("p_in: %.3f\t", fb->p_in);
#endif
#ifdef CONFIG_SMPS_HAVE_INPUT_POWER
printf("p_out: %.3f\t", fb->p_out);
#endif
#ifdef CONFIG_SMPS_HAVE_EFFICIENCY
printf("eff: %.3f\t", fb->eff);
#endif
printf("\n");
}
static void print_info(struct smps_limits_s *limits,
struct smps_params_s *params,
uint8_t *mode, struct args_s *args)
{
printf("-------------------------------------\n");
printf("Current SMPS settings:\n");
printf("\n");
#if CONFIG_EXAMPLES_SMPS_OUT_VOLTAGE_LIMIT > 0
printf(" Output voltage limit set to %.2f\n", limits->v_out);
#endif
#if CONFIG_EXAMPLES_SMPS_IN_VOLTAGE_LIMIT > 0
printf(" Input voltage limit set to %.2f\n", limits->v_in);
#endif
#if CONFIG_EXAMPLES_SMPS_OUT_CURRENT_LIMIT > 0
printf(" Output current limit set to %.2f\n", limits->i_out);
#endif
#if CONFIG_EXAMPLES_SMPS_IN_CURRENT_LIMIT > 0
printf(" Input current limit set to %.2f\n", limits->i_in);
#endif
#if CONFIG_EXAMPLES_SMPS_OUT_POWER_LIMIT > 0
printf(" Output power limit set to %.2f\n", limits->p_out);
#endif
#if CONFIG_EXAMPLES_SMPS_IN_POWER_LIMIT > 0
printf(" Input power limit set to %.2f\n", limits->p_in);
#endif
printf("\n");
printf(" Demo time: %d sec\n", args->time);
printf(" Mode set to %d\n", *mode);
if (params->v_out > 0)
{
printf(" Output voltage set to %.2f\n", params->v_out);
}
if (params->i_out > 0)
{
printf(" Output current set to %.2f\n", params->i_out);
}
if (params->p_out > 0)
{
printf(" Output power set to %.2f\n", params->p_out);
}
printf("-------------------------------------\n\n");
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: smps_main
****************************************************************************/
int main(int argc, char *argv[])
{
struct smps_limits_s smps_limits;
struct smps_params_s smps_params;
struct smps_state_s smps_state;
struct args_s *args = &g_args;
uint8_t smps_mode;
bool terminate;
int time = 0;
int ret = 0;
int fd = 0;
/* Initialize smps structures */
memset(&smps_limits, 0, sizeof(struct smps_limits_s));
memset(&smps_params, 0, sizeof(struct smps_params_s));
memset(args, 0, sizeof(struct args_s));
/* Initialize variables */
terminate = false;
/* Initialize SMPS limits */
#if CONFIG_EXAMPLES_SMPS_OUT_VOLTAGE_LIMIT > 0
smps_limits.v_out =
(float)CONFIG_EXAMPLES_SMPS_OUT_VOLTAGE_LIMIT / 1000.0;
#endif
#if CONFIG_EXAMPLES_SMPS_IN_VOLTAGE_LIMIT > 0
smps_limits.v_in =
(float)CONFIG_EXAMPLES_SMPS_IN_VOLTAGE_LIMIT / 1000.0;
#endif
#if CONFIG_EXAMPLES_SMPS_OUT_CURRENT_LIMIT > 0
smps_limits.i_out =
(float)CONFIG_EXAMPLES_SMPS_OUT_CURRENT_LIMIT / 1000.0;
#endif
#if CONFIG_EXAMPLES_SMPS_IN_CURRENT_LIMIT > 0
smps_limits.i_in =
(float)CONFIG_EXAMPLES_SMPS_IN_CURRENT_LIMIT / 1000.0;
#endif
#if CONFIG_EXAMPLES_SMPS_OUT_CURRENT_LIMIT > 0
smps_limits.p_out =
(float)CONFIG_EXAMPLES_SMPS_OUT_POWER_LIMIT / 1000.0;
#endif
#if CONFIG_EXAMPLES_SMPS_IN_CURRENT_LIMIT > 0
smps_limits.p_in =
(float)CONFIG_EXAMPLES_SMPS_IN_POWER_LIMIT / 1000.0;
#endif
/* Parse the command line */
parse_args(args, argc, argv);
/* Validate arguments */
ret = validate_args(args);
if (ret != OK)
{
printf("powerled_main: validate arguments failed!\n");
goto errout;
}
#ifndef CONFIG_NSH_ARCHINIT
/* Perform architecture-specific initialization (if configured) */
boardctl(BOARDIOC_INIT, 0);
#ifdef CONFIG_BOARDCTL_FINALINIT
/* Perform architecture-specific final-initialization (if configured) */
boardctl(BOARDIOC_FINALINIT, 0);
#endif
#endif
/* Set SMPS mode */
smps_mode = SMPS_OPMODE_CV;
/* Set SMPS params */
smps_params.v_out = (args->voltage > 0 ? args->voltage :
(float)CONFIG_EXAMPLES_SMPS_OUT_VOLTAGE_DEFAULT / 1000.0);
smps_params.i_out = (args->current > 0 ? args->current :
(float)CONFIG_EXAMPLES_SMPS_OUT_CURRENT_DEFAULT / 1000.0);
smps_params.p_out = (args->power > 0 ? args->power :
(float)CONFIG_EXAMPLES_SMPS_OUT_POWER_DEFAULT / 1000.0);
args->time = (args->time == 0 ? CONFIG_EXAMPLES_SMPS_TIME_DEFAULT :
args->time);
printf("\nStart smps_main application!\n\n");
/* Print demo info */
print_info(&smps_limits, &smps_params, &smps_mode, args);
/* Open the SMPS driver */
fd = open(CONFIG_EXAMPLES_SMPS_DEVPATH, 0);
if (fd <= 0)
{
printf("smps_main: open %s failed %d\n",
CONFIG_EXAMPLES_SMPS_DEVPATH, errno);
goto errout;
}
/* Set SMPS limits */
ret = ioctl(fd, PWRIOC_SET_LIMITS, (unsigned long)&smps_limits);
if (ret != OK)
{
printf("IOCTL PWRIOC_LIMITS failed %d!\n", ret);
goto errout;
}
/* Set SMPS mode */
ret = ioctl(fd, PWRIOC_SET_MODE, (unsigned long)smps_mode);
if (ret != OK)
{
printf("IOCTL PWRIOC_MODE failed %d!\n", ret);
goto errout;
}
/* Set SMPS params */
ret = ioctl(fd, PWRIOC_SET_PARAMS, (unsigned long)&smps_params);
if (ret != OK)
{
printf("IOCTL PWRIOC_PARAMS failed %d!\n", ret);
goto errout;
}
/* Start SMPS driver */
ret = ioctl(fd, PWRIOC_START, (unsigned long)0);
if (ret != OK)
{
printf("IOCTL PWRIOC_START failed %d!\n", ret);
goto errout;
}
/* Main loop */
while (terminate != true)
{
/* Get current SMPS state */
ret = ioctl(fd, PWRIOC_GET_STATE, (unsigned long)&smps_state);
if (ret < 0)
{
printf("Failed to get state %d\n", ret);
}
/* Terminate if fault state */
if (smps_state.state > SMPS_STATE_RUN)
{
printf("Smps state = %d, fault = %d\n", smps_state.state,
smps_state.fault);
terminate = true;
}
/* Print feedback state */
if (time % 2 == 0)
{
feedback_print(&smps_state.fb);
}
/* Handle run time */
if (terminate != true)
{
/* Wait 1 sec */
sleep(1);
if (args->time != -1)
{
time += 1;
if (time >= args->time)
{
/* Exit loop */
terminate = true;
}
}
}
}
errout:
if (fd > 0)
{
printf("Stop smps driver\n");
/* Stop SMPS driver */
ret = ioctl(fd, PWRIOC_STOP, (unsigned long)0);
if (ret != OK)
{
printf("IOCTL PWRIOC_STOP failed %d!\n", ret);
}
/* Close file */
close(fd);
}
return 0;
}
#endif /* CONFIG_EXAMPLE_SMPS */