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/* Copyright 2021 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.
*/
#include "common.h"
#include "adc_chip.h"
#include "temp_sensor.h"
#include "thermal.h"
#include "thermistor.h"
/* ADC configuration */
const struct adc_t adc_channels[] = {
[ADC_TEMP_SENSOR_1_DDR_SOC] = {
.name = "TEMP_DDR_SOC",
.input_ch = NPCX_ADC_CH0,
.factor_mul = ADC_MAX_VOLT,
.factor_div = ADC_READ_MAX + 1,
.shift = 0,
},
[ADC_TEMP_SENSOR_2_CHARGER] = {
.name = "TEMP_CHARGER",
.input_ch = NPCX_ADC_CH1,
.factor_mul = ADC_MAX_VOLT,
.factor_div = ADC_READ_MAX + 1,
.shift = 0,
},
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
/* Temperature sensor configuration */
const struct temp_sensor_t temp_sensors[] = {
[TEMP_SENSOR_1_DDR_SOC] = {
.name = "DDR and SOC",
.type = TEMP_SENSOR_TYPE_BOARD,
.read = get_temp_3v3_30k9_47k_4050b,
.idx = ADC_TEMP_SENSOR_1_DDR_SOC
},
[TEMP_SENSOR_2_CHARGER] = {
.name = "Charger",
.type = TEMP_SENSOR_TYPE_BOARD,
.read = get_temp_3v3_30k9_47k_4050b,
.idx = ADC_TEMP_SENSOR_2_CHARGER
},
};
BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);
/*
* TODO(b/180681346): update for Alder Lake/brya
*
* Tiger Lake specifies 100 C as maximum TDP temperature. THRMTRIP# occurs at
* 130 C. However, sensor is located next to DDR, so we need to use the lower
* DDR temperature limit (85 C)
*/
static const struct ec_thermal_config thermal_cpu = {
.temp_host = {
[EC_TEMP_THRESH_HIGH] = C_TO_K(70),
[EC_TEMP_THRESH_HALT] = C_TO_K(80),
},
.temp_host_release = {
[EC_TEMP_THRESH_HIGH] = C_TO_K(65),
},
.temp_fan_off = C_TO_K(35),
.temp_fan_max = C_TO_K(50),
};
/*
* TODO(b/180681346): update for Alder Lake/brya
*
* Inductor limits - used for both charger and PP3300 regulator
*
* Need to use the lower of the charger IC, PP3300 regulator, and the inductors
*
* Charger max recommended temperature 100C, max absolute temperature 125C
* PP3300 regulator: operating range -40 C to 145 C
*
* Inductors: limit of 125c
* PCB: limit is 80c
*/
static const struct ec_thermal_config thermal_inductor = {
.temp_host = {
[EC_TEMP_THRESH_HIGH] = C_TO_K(75),
[EC_TEMP_THRESH_HALT] = C_TO_K(80),
},
.temp_host_release = {
[EC_TEMP_THRESH_HIGH] = C_TO_K(65),
},
.temp_fan_off = C_TO_K(40),
.temp_fan_max = C_TO_K(55),
};
/* this should really be "const" */
struct ec_thermal_config thermal_params[] = {
[TEMP_SENSOR_1_DDR_SOC] = thermal_cpu,
[TEMP_SENSOR_2_CHARGER] = thermal_inductor,
};
BUILD_ASSERT(ARRAY_SIZE(thermal_params) == TEMP_SENSOR_COUNT);
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