blob: d8cfb1b5081154434482ca437eb0c641378864db [file] [log] [blame]
/*
* Copyright 2020 Google LLC
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <shell/shell.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <device.h>
#include <drivers/sensor.h>
/**
* @brief Collect the values for several channels
*
* @param dev Sensor device to read from
* @param ... any number of pairs of arguments:
* first is the sensor channel to read (-1 to terminate the list)
* second is a pointer to the struct sensor_value to put it in
* @return 0 on success
* @return negative error code from sensor API on failure
*/
static int get_channels(const struct device *dev, ...)
{
va_list ptr;
int i;
va_start(ptr, dev);
for (i = 0;; i++) {
int chan;
struct sensor_value *val;
int err;
chan = va_arg(ptr, int);
if (chan == -1)
break;
val = va_arg(ptr, struct sensor_value *);
err = sensor_channel_get(dev, chan, val);
if (err < 0) {
va_end(ptr);
return err;
}
}
va_end(ptr);
return 0;
}
/* battery */
static int cmd_battery(const struct shell *shell, size_t argc, char **argv)
{
struct sensor_value temp, volt, current, i_desired, charge_remain;
struct sensor_value charge, v_desired, v_design, cap, nom_cap;
struct sensor_value full, empty;
const struct device *dev;
bool allowed;
int err;
dev = device_get_binding(DT_LABEL(DT_ALIAS(battery)));
if (!dev) {
shell_error(shell, "Device unknown (%s)", argv[1]);
return -ENODEV;
}
err = sensor_sample_fetch(dev);
if (err < 0) {
shell_error(shell, "Failed to read sensor: %d", err);
}
err = get_channels(dev,
SENSOR_CHAN_GAUGE_TEMP, &temp,
SENSOR_CHAN_GAUGE_VOLTAGE, &volt,
SENSOR_CHAN_GAUGE_AVG_CURRENT, &current,
SENSOR_CHAN_GAUGE_DESIRED_VOLTAGE, &v_desired,
SENSOR_CHAN_GAUGE_DESIRED_CHARGING_CURRENT,
&i_desired,
SENSOR_CHAN_GAUGE_STATE_OF_CHARGE, &charge,
SENSOR_CHAN_GAUGE_DESIGN_VOLTAGE, &v_design,
SENSOR_CHAN_GAUGE_REMAINING_CHARGE_CAPACITY,
&charge_remain,
SENSOR_CHAN_GAUGE_FULL_CHARGE_CAPACITY, &cap,
SENSOR_CHAN_GAUGE_NOM_AVAIL_CAPACITY, &nom_cap,
SENSOR_CHAN_GAUGE_TIME_TO_FULL, &full,
SENSOR_CHAN_GAUGE_TIME_TO_EMPTY, &empty,
-1);
if (err < 0) {
return err;
}
shell_fprintf(shell, SHELL_NORMAL, "Temp: %.1d.%02d C\n", temp.val1,
temp.val2 / 10000);
shell_fprintf(shell, SHELL_NORMAL, "V: %5d.%02d V\n", volt.val1,
volt.val2 / 10000);
shell_fprintf(shell, SHELL_NORMAL, "V-desired: %d.%02d V\n",
v_desired.val1, v_desired.val2 / 10000);
shell_fprintf(shell, SHELL_NORMAL, "I: %d mA", current.val1);
if (current.val1 > 0) {
shell_fprintf(shell, SHELL_NORMAL, " (CHG)");
} else if (current.val1 < 0) {
shell_fprintf(shell, SHELL_NORMAL, " (DISCHG)");
}
shell_fprintf(shell, SHELL_NORMAL, "\n");
shell_fprintf(shell, SHELL_NORMAL, "I-desired: %5d mA\n",
i_desired.val1);
allowed = i_desired.val1 && v_desired.val2 && charge.val1 < 100;
shell_fprintf(shell, SHELL_NORMAL, "Charging: %sAllowed\n",
allowed ? "" : "Not ");
shell_fprintf(shell, SHELL_NORMAL, "Charge: %d %%\n", charge.val1);
shell_fprintf(shell, SHELL_NORMAL, "V-design: %d.%02d V\n",
v_design.val1, v_design.val2 / 10000);
shell_fprintf(shell, SHELL_NORMAL, "Remaining: %d mA\n",
charge_remain.val1);
shell_fprintf(shell, SHELL_NORMAL, "Cap-full: %d mA\n", cap.val1);
shell_fprintf(shell, SHELL_NORMAL, "Design: %d mA\n", nom_cap.val1);
shell_fprintf(shell, SHELL_NORMAL, "Time full: %dh:%02d\n",
full.val1 / 60, full.val1 % 60);
shell_fprintf(shell, SHELL_NORMAL, "Time empty: %dh:%02d\n",
empty.val1 / 60, empty.val1 % 60);
return 0;
}
SHELL_CMD_REGISTER(battery, NULL, "Battery status", cmd_battery);