pwarren/zmk_mf68
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Remove newlib dep

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This commit is contained in:
Nick 2020-10-24 18:52:34 -05:00
parent a67a8cd3b8
commit adb07926b1
4 changed files with 11 additions and 13 deletions
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2
app/boards/arm/bluemicro840/bluemicro840_v1_defconfig
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@ -12,8 +12,6 @@ CONFIG_GPIO=y
CONFIG_ADC=y
CONFIG_NEWLIB_LIBC=y
CONFIG_USE_DT_CODE_PARTITION=y
CONFIG_MPU_ALLOW_FLASH_WRITE=y

2
app/boards/arm/nice_nano/nice_nano_defconfig
View file

@ -12,8 +12,6 @@ CONFIG_GPIO=y
CONFIG_ADC=y
CONFIG_NEWLIB_LIBC=y
CONFIG_USE_DT_CODE_PARTITION=y
CONFIG_MPU_ALLOW_FLASH_WRITE=y

2
app/boards/arm/nrfmicro/nrfmicro_13_defconfig
View file

@ -12,8 +12,6 @@ CONFIG_GPIO=y
CONFIG_ADC=y
CONFIG_NEWLIB_LIBC=y
CONFIG_USE_DT_CODE_PARTITION=y
CONFIG_MPU_ALLOW_FLASH_WRITE=y

18
app/drivers/zephyr/battery_voltage_divider.c
View file

@ -7,12 +7,10 @@
#define DT_DRV_COMPAT zmk_battery_voltage_divider
#include <device.h>
#include <drivers/kscan.h>
#include <drivers/gpio.h>
#include <drivers/adc.h>
#include <drivers/sensor.h>
#include <logging/log.h>
#include <math.h>
LOG_MODULE_DECLARE(zmk, CONFIG_ZMK_LOG_LEVEL);
@ -47,10 +45,16 @@ struct bvd_data {
};
static uint8_t lithium_ion_mv_to_pct(int16_t bat_mv) {
// Magic function that maps mV to this discharge graph from adafruit:
// Simple linear approximation of a battery based off adafruit's discharge graph:
// https://learn.adafruit.com/li-ion-and-lipoly-batteries/voltages
return round(106.818 +
(-0.032685 - 106.818) / pow(1 + pow(bat_mv / 3679.35, 58.979), 0.347386));
if (bat_mv >= 4200) {
return 100;
} else if (bat_mv <= 3450) {
return 0;
}
return bat_mv * 2 / 15 - 459;
}
static int bvd_sample_fetch(struct device *dev, enum sensor_channel chan) {
@ -142,7 +146,7 @@ static int bvd_init(struct device *dev) {
if (drv_data->adc == NULL) {
LOG_ERR("ADC %s failed to retrieve", drv_cfg->io_channel.label);
return -ENOENT;
return -ENODEV;
}
int rc = 0;
@ -151,7 +155,7 @@ static int bvd_init(struct device *dev) {
drv_data->gpio = device_get_binding(drv_cfg->power_gpios.label);
if (drv_data->gpio == NULL) {
LOG_ERR("Failed to get GPIO %s", drv_cfg->power_gpios.label);
return -ENOENT;
return -ENODEV;
}
rc = gpio_pin_configure(drv_data->gpio, drv_cfg->power_gpios.pin,
GPIO_OUTPUT_INACTIVE | drv_cfg->power_gpios.flags);