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drivers: sensor: npm1300: Attributes and enable/disable

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Added support for attribute get/set, and enabling/disabling
of charge.

Signed-off-by: Andy Sinclair <andy.sinclair@nordicsemi.no>
This commit is contained in:
Andy Sinclair 2023-08-18 16:28:32 +01:00 committed by Maureen Helm
parent b05e104acb
commit e2dd071afc
1 changed files with 57 additions and 0 deletions
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57
drivers/sensor/npm1300_charger/npm1300_charger.c
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@ -42,6 +42,7 @@ struct npm1300_charger_data {
#define VBUS_BASE 0x02U
/* nPM1300 charger register offsets */
#define CHGR_OFFSET_ERR_CLR 0x00U
#define CHGR_OFFSET_EN_SET 0x04U
#define CHGR_OFFSET_EN_CLR 0x05U
#define CHGR_OFFSET_ISET 0x08U
@ -284,6 +285,60 @@ static int set_ntc_thresholds(const struct npm1300_charger_config *const config)
return 0;
}
static int npm1300_charger_attr_get(const struct device *dev, enum sensor_channel chan,
enum sensor_attribute attr, struct sensor_value *val)
{
const struct npm1300_charger_config *const config = dev->config;
uint8_t data;
int ret;
switch ((uint32_t)chan) {
case SENSOR_CHAN_GAUGE_DESIRED_CHARGING_CURRENT:
if (attr != SENSOR_ATTR_CONFIGURATION) {
return -ENOTSUP;
}
ret = mfd_npm1300_reg_read(config->mfd, CHGR_BASE, CHGR_OFFSET_EN_SET, &data);
if (ret == 0) {
val->val1 = data;
val->val2 = 0U;
}
return ret;
default:
return -ENOTSUP;
}
}
static int npm1300_charger_attr_set(const struct device *dev, enum sensor_channel chan,
enum sensor_attribute attr, const struct sensor_value *val)
{
const struct npm1300_charger_config *const config = dev->config;
int ret;
switch ((uint32_t)chan) {
case SENSOR_CHAN_GAUGE_DESIRED_CHARGING_CURRENT:
if (attr != SENSOR_ATTR_CONFIGURATION) {
return -ENOTSUP;
}
if (val->val1 == 0) {
/* Disable charging */
return mfd_npm1300_reg_write(config->mfd, CHGR_BASE, CHGR_OFFSET_EN_CLR,
1U);
}
/* Clear any errors and enable charging */
ret = mfd_npm1300_reg_write(config->mfd, CHGR_BASE, CHGR_OFFSET_ERR_CLR, 1U);
if (ret != 0) {
return ret;
}
return mfd_npm1300_reg_write(config->mfd, CHGR_BASE, CHGR_OFFSET_EN_SET, 1U);
default:
return -ENOTSUP;
}
}
int npm1300_charger_init(const struct device *dev)
{
const struct npm1300_charger_config *const config = dev->config;
@ -407,6 +462,8 @@ int npm1300_charger_init(const struct device *dev)
static const struct sensor_driver_api npm1300_charger_battery_driver_api = {
.sample_fetch = npm1300_charger_sample_fetch,
.channel_get = npm1300_charger_channel_get,
.attr_set = npm1300_charger_attr_set,
.attr_get = npm1300_charger_attr_get,
};
#define NPM1300_CHARGER_INIT(n) \