diff options
Diffstat (limited to 'driver/temp_sensor/ec_adc.h')
| -rw-r--r-- | driver/temp_sensor/ec_adc.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/driver/temp_sensor/ec_adc.h b/driver/temp_sensor/ec_adc.h new file mode 100644 index 0000000000..8ff213e95d --- /dev/null +++ b/driver/temp_sensor/ec_adc.h @@ -0,0 +1,24 @@ +/* Copyright 2015 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +/* ec_adc which uses adc and thermistors module for Chrome EC + * Some EC has it's own ADC modules, define here EC's max ADC channels. + * We can consider every channel as a thermal sensor. + */ + +#ifndef __CROS_EC_TEMP_SENSOR_EC_ADC_H +#define __CROS_EC_TEMP_SENSOR_EC_ADC_H + +/** + * Get the latest value from the sensor. + * + * @param idx ADC channel to read. + * @param temp_ptr Destination for temperature in K. + * + * @return EC_SUCCESS if successful, non-zero if error. + */ +int ec_adc_get_val(int idx, int *temp_ptr); + +#endif /* __CROS_EC_TEMP_SENSOR_EC_ADC_H */ |