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Diffstat (limited to 'board/eldrid/thermal.c')
| -rw-r--r-- | board/eldrid/thermal.c | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/board/eldrid/thermal.c b/board/eldrid/thermal.c deleted file mode 100644 index 4f9ac8796b..0000000000 --- a/board/eldrid/thermal.c +++ /dev/null @@ -1,210 +0,0 @@ -/* Copyright 2020 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 "chipset.h" -#include "common.h" -#include "console.h" -#include "fan.h" -#include "hooks.h" -#include "host_command.h" -#include "temp_sensor.h" -#include "thermal.h" -#include "util.h" - -/* Console output macros */ -#define CPUTS(outstr) cputs(CC_THERMAL, outstr) -#define CPRINTS(format, args...) cprints(CC_THERMAL, format, ## args) - - -/******************************************************************************/ -/* EC thermal management configuration */ -/* - * 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). - * TODO(b/170143672): Have different sensor placement. The temperature need to - * be changed. - */ -const static 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), -}; - -/* - * 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 - */ -const static 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), -}; - -struct ec_thermal_config thermal_params[] = { - [TEMP_SENSOR_1_CHARGER] = thermal_inductor, - [TEMP_SENSOR_2_PP3300_REGULATOR] = thermal_inductor, - [TEMP_SENSOR_3_DDR_SOC] = thermal_cpu, - [TEMP_SENSOR_4_FAN] = thermal_cpu, -}; -BUILD_ASSERT(ARRAY_SIZE(thermal_params) == TEMP_SENSOR_COUNT); - -/******************************************************************************/ -struct fan_step { - /* - * Sensor 1~4 trigger point, set -1 if we're not using this - * sensor to determine fan speed. - */ - int8_t on[TEMP_SENSOR_COUNT]; - - /* - * Sensor 1~4 trigger point, set -1 if we're not using this - * sensor to determine fan speed. - */ - int8_t off[TEMP_SENSOR_COUNT]; - - /* Fan rpm */ - uint16_t rpm[FAN_CH_COUNT]; -}; - -/* - * TODO(b/167931578) Only monitor sensor3 for now. - * Will add more sensors support if needed. - */ -static const struct fan_step fan_table[] = { - { - /* level 0 */ - .on = {-1, -1, 44, -1}, - .off = {-1, -1, 0, -1}, - .rpm = {0}, - }, - { - /* level 1 */ - .on = {-1, -1, 46, -1}, - .off = {-1, -1, 44, -1}, - .rpm = {3200}, - }, - { - /* level 2 */ - .on = {-1, -1, 50, -1}, - .off = {-1, -1, 45, -1}, - .rpm = {3600}, - }, - { - /* level 3 */ - .on = {-1, -1, 54, -1}, - .off = {-1, -1, 49, -1}, - .rpm = {4100}, - }, - { - /* level 4 */ - .on = {-1, -1, 58, -1}, - .off = {-1, -1, 53, -1}, - .rpm = {4900}, - }, - { - /* level 5 */ - .on = {-1, -1, 60, -1}, - .off = {-1, -1, 57, -1}, - .rpm = {5200}, - }, -}; - -int fan_table_to_rpm(int fan, int *temp) -{ - /* current fan level */ - static int current_level; - /* previous fan level */ - static int prev_current_level; - - /* previous sensor temperature */ - static int prev_temp[TEMP_SENSOR_COUNT]; - const int num_fan_levels = ARRAY_SIZE(fan_table); - int i; - int new_rpm = 0; - - /* - * Compare the current and previous temperature, we have - * the three paths : - * 1. decreasing path. (check the release point) - * 2. increasing path. (check the trigger point) - * 3. invariant path. (return the current RPM) - */ - - if (temp[TEMP_SENSOR_3_DDR_SOC] < prev_temp[TEMP_SENSOR_3_DDR_SOC]) { - for (i = current_level; i > 0; i--) { - if (temp[TEMP_SENSOR_3_DDR_SOC] < - fan_table[i].off[TEMP_SENSOR_3_DDR_SOC]) - current_level = i - 1; - else - break; - } - } else if (temp[TEMP_SENSOR_3_DDR_SOC] > - prev_temp[TEMP_SENSOR_3_DDR_SOC]) { - for (i = current_level; i < num_fan_levels; i++) { - if (temp[TEMP_SENSOR_3_DDR_SOC] > - fan_table[i].on[TEMP_SENSOR_3_DDR_SOC]) - current_level = i; - else - break; - } - } - - if (current_level < 0) - current_level = 0; - - if (current_level != prev_current_level) { - CPRINTS("temp: %d, prev_temp: %d", temp[TEMP_SENSOR_3_DDR_SOC], - prev_temp[TEMP_SENSOR_3_DDR_SOC]); - CPRINTS("current_level: %d", current_level); - } - - for (i = 0; i < TEMP_SENSOR_COUNT; ++i) - prev_temp[i] = temp[i]; - - prev_current_level = current_level; - - switch (fan) { - case FAN_CH_0: - new_rpm = fan_table[current_level].rpm[FAN_CH_0]; - break; - default: - break; - } - - return new_rpm; -} - -void board_override_fan_control(int fan, int *temp) -{ - if (chipset_in_state(CHIPSET_STATE_ON)) { - fan_set_rpm_mode(FAN_CH(fan), 1); - fan_set_rpm_target(FAN_CH(fan), - fan_table_to_rpm(fan, temp)); - } else if (chipset_in_state(CHIPSET_STATE_ANY_SUSPEND)) { - /* Stop fan when enter S0ix */ - fan_set_rpm_mode(FAN_CH(fan), 1); - fan_set_rpm_target(FAN_CH(fan), 0); - } -} |