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/* Copyright 2022 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "body_detection.h"
#include "fan.h"
#include "hooks.h"
#include "host_command.h"
#include "lid_switch.h"
#include "math_util.h"
#include "temp_sensor/temp_sensor.h"
#include "thermal.h"
#define CPRINTS(format, args...) cprints(CC_THERMAL, format, ##args)
#define CPRINTF(format, args...) cprintf(CC_THERMAL, format, ##args)
/*AMB sensor for thermal tabel control*/
#define TEMP_AMB TEMP_SENSOR_ID(DT_NODELABEL(temp_sensor_amb))
/*SOC and CPU sensor for fan tabel control*/
#define TEMP_SOC TEMP_SENSOR_ID(DT_NODELABEL(temp_sensor_soc))
#define TEMP_CPU TEMP_SENSOR_ID(DT_NODELABEL(temp_sensor_cpu))
/*
* TODO(b/202062363): Remove when clang is fixed.
*/
#define THERMAL_DESKTOP_LID_OPEN \
{ \
.temp_host = { \
[EC_TEMP_THRESH_WARN] = C_TO_K(43), \
[EC_TEMP_THRESH_HIGH] = C_TO_K(97), \
[EC_TEMP_THRESH_HALT] = C_TO_K(98), \
}, \
.temp_host_release = { \
[EC_TEMP_THRESH_WARN] = C_TO_K(39), \
[EC_TEMP_THRESH_HIGH] = C_TO_K(87), \
[EC_TEMP_THRESH_HALT] = C_TO_K(88), \
}, \
}
__maybe_unused static const struct ec_thermal_config thermal_desktop_lid_open =
THERMAL_DESKTOP_LID_OPEN;
/*
* TODO(b/202062363): Remove when clang is fixed.
*/
#define THERMAL_DESKTOP_LID_CLOSE \
{ \
.temp_host = { \
[EC_TEMP_THRESH_WARN] = C_TO_K(43), \
[EC_TEMP_THRESH_HIGH] = C_TO_K(97), \
[EC_TEMP_THRESH_HALT] = C_TO_K(98), \
}, \
.temp_host_release = { \
[EC_TEMP_THRESH_WARN] = C_TO_K(39), \
[EC_TEMP_THRESH_HIGH] = C_TO_K(87), \
[EC_TEMP_THRESH_HALT] = C_TO_K(88), \
}, \
}
__maybe_unused static const struct ec_thermal_config thermal_desktop_lid_close =
THERMAL_DESKTOP_LID_CLOSE;
/*
* TODO(b/202062363): Remove when clang is fixed.
*/
#define THERMAL_LAPTOP \
{ \
.temp_host = { \
[EC_TEMP_THRESH_WARN] = C_TO_K(42), \
[EC_TEMP_THRESH_HIGH] = C_TO_K(97), \
[EC_TEMP_THRESH_HALT] = C_TO_K(98), \
}, \
.temp_host_release = { \
[EC_TEMP_THRESH_WARN] = C_TO_K(38), \
[EC_TEMP_THRESH_HIGH] = C_TO_K(87), \
[EC_TEMP_THRESH_HALT] = C_TO_K(88), \
}, \
}
__maybe_unused static const struct ec_thermal_config thermal_laptop =
THERMAL_LAPTOP;
/*
* TODO(b/202062363): Remove when clang is fixed.
*/
#define FAN_SOC_DESKTOP_LID_OPEN \
{ \
.temp_host = { \
[EC_TEMP_THRESH_HIGH] = C_TO_K(97), \
[EC_TEMP_THRESH_HALT] = C_TO_K(98), \
}, \
.temp_host_release = { \
[EC_TEMP_THRESH_HIGH] = C_TO_K(87), \
[EC_TEMP_THRESH_HALT] = C_TO_K(88), \
}, \
.temp_fan_off = C_TO_K(55), \
.temp_fan_max = C_TO_K(72), \
}
__maybe_unused static const struct ec_thermal_config fan_soc_desktop_lid_open =
FAN_SOC_DESKTOP_LID_OPEN;
/*
* TODO(b/202062363): Remove when clang is fixed.
*/
#define FAN_SOC_DESKTOP_LID_CLOSE \
{ \
.temp_host = { \
[EC_TEMP_THRESH_HIGH] = C_TO_K(97), \
[EC_TEMP_THRESH_HALT] = C_TO_K(98), \
}, \
.temp_host_release = { \
[EC_TEMP_THRESH_HIGH] = C_TO_K(87), \
[EC_TEMP_THRESH_HALT] = C_TO_K(88), \
}, \
.temp_fan_off = C_TO_K(55), \
.temp_fan_max = C_TO_K(72), \
}
__maybe_unused static const struct ec_thermal_config fan_soc_desktop_lid_close =
FAN_SOC_DESKTOP_LID_CLOSE;
/*
* TODO(b/202062363): Remove when clang is fixed.
*/
#define FAN_SOC_LAPTOP \
{ \
.temp_host = { \
[EC_TEMP_THRESH_HIGH] = C_TO_K(97), \
[EC_TEMP_THRESH_HALT] = C_TO_K(98), \
}, \
.temp_host_release = { \
[EC_TEMP_THRESH_HIGH] = C_TO_K(87), \
[EC_TEMP_THRESH_HALT] = C_TO_K(88), \
}, \
.temp_fan_off = C_TO_K(51), \
.temp_fan_max = C_TO_K(68), \
}
__maybe_unused static const struct ec_thermal_config fan_soc_laptop =
FAN_SOC_LAPTOP;
/*
* TODO(b/202062363): Remove when clang is fixed.
*/
#define FAN_CPU_DESKTOP_LID_OPEN \
{ \
.temp_fan_off = C_TO_K(72), .temp_fan_max = C_TO_K(82), \
}
__maybe_unused static const struct ec_thermal_config fan_cpu_desktop_lid_open =
FAN_CPU_DESKTOP_LID_OPEN;
/*
* TODO(b/202062363): Remove when clang is fixed.
*/
#define FAN_CPU_DESKTOP_LID_CLOSE \
{ \
.temp_fan_off = C_TO_K(72), .temp_fan_max = C_TO_K(82), \
}
__maybe_unused static const struct ec_thermal_config fan_cpu_desktop_lid_close =
FAN_CPU_DESKTOP_LID_CLOSE;
/*
* TODO(b/202062363): Remove when clang is fixed.
*/
#define FAN_CPU_LAPTOP \
{ \
.temp_fan_off = C_TO_K(68), .temp_fan_max = C_TO_K(78), \
}
__maybe_unused static const struct ec_thermal_config fan_cpu_laptop =
FAN_CPU_LAPTOP;
static int last_amb_temp = -1;
/* Switch thermal table when mode change */
static void thermal_table_switch(void)
{
enum body_detect_states body_state = body_detect_get_state();
if (body_state == BODY_DETECTION_OFF_BODY) {
if (lid_is_open()) {
thermal_params[TEMP_AMB] = thermal_desktop_lid_open;
thermal_params[TEMP_SOC] = fan_soc_desktop_lid_open;
thermal_params[TEMP_CPU] = fan_cpu_desktop_lid_open;
CPRINTS("Thermal: Desktop lid open mode");
} else {
thermal_params[TEMP_AMB] = thermal_desktop_lid_close;
thermal_params[TEMP_SOC] = fan_soc_desktop_lid_close;
thermal_params[TEMP_CPU] = fan_cpu_desktop_lid_close;
CPRINTS("Thermal: Desktop lid close mode");
}
} else {
thermal_params[TEMP_AMB] = thermal_laptop;
thermal_params[TEMP_SOC] = fan_soc_laptop;
thermal_params[TEMP_CPU] = fan_cpu_laptop;
CPRINTS("Thermal: Laptop mode");
}
}
DECLARE_HOOK(HOOK_INIT, thermal_table_switch, HOOK_PRIO_DEFAULT);
DECLARE_HOOK(HOOK_LID_CHANGE, thermal_table_switch, HOOK_PRIO_DEFAULT);
DECLARE_HOOK(HOOK_BODY_DETECT_CHANGE, thermal_table_switch, HOOK_PRIO_DEFAULT);
/* Set SCI event to host for temperature change */
static void detect_temp_change(void)
{
int t, rv;
rv = temp_sensor_read(TEMP_AMB, &t);
if (rv == EC_SUCCESS) {
if (last_amb_temp != t) {
last_amb_temp = t;
host_set_single_event(EC_HOST_EVENT_THERMAL_THRESHOLD);
}
} else if (rv == EC_ERROR_INVAL) {
CPRINTS("Temp sensor: Invalid id");
}
}
DECLARE_HOOK(HOOK_SECOND, detect_temp_change, HOOK_PRIO_TEMP_SENSOR_DONE);
#ifdef CONFIG_PLATFORM_EC_CUSTOM_FAN_DUTY_CONTROL
K_TIMER_DEFINE(grace_period_timer, NULL, NULL);
enum fan_status board_override_fan_control_duty(int ch)
{
int duty, rpm_diff, deviation, duty_step;
struct fan_data *data = &fan_data[ch];
int rpm_actual = data->rpm_actual;
int rpm_target = data->rpm_target;
/* This works with one fan only. */
if (ch != 0) {
CPRINTS("Only FAN0 is supported!");
return FAN_STATUS_FRUSTRATED;
}
/* Wait for fan RPM to catch up after its duty has been changed. */
if (k_timer_remaining_ticks(&grace_period_timer) != 0)
return FAN_STATUS_LOCKED;
duty = fan_get_duty(ch);
if (duty == 0 && rpm_target == 0)
return FAN_STATUS_STOPPED;
/*
* If the current RPM is close enough to the target just leave it.
* It's always going to fluctuate a bit anyway.
*/
deviation = fans[ch].rpm->rpm_deviation * rpm_target / 100;
rpm_diff = rpm_target - rpm_actual;
if (rpm_diff > deviation) {
/* Can't set duty higher than 100%... */
if (duty == 100)
return FAN_STATUS_FRUSTRATED;
} else if (rpm_diff < -deviation) {
/* Can't set duty lower than 1%... */
if (duty == 1 && rpm_target != 0)
return FAN_STATUS_FRUSTRATED;
} else {
return FAN_STATUS_LOCKED;
}
/*
* The rpm_diff -> duty_step conversion is specific to a specific
* whiterun fan.
* It has been determined empirically.
*/
if (ABS(rpm_diff) >= 2500) {
duty_step = 35;
k_timer_start(&grace_period_timer, K_MSEC(800), K_NO_WAIT);
} else if (ABS(rpm_diff) >= 2000) {
duty_step = 28;
k_timer_start(&grace_period_timer, K_MSEC(800), K_NO_WAIT);
} else if (ABS(rpm_diff) >= 1000) {
duty_step = 14;
k_timer_start(&grace_period_timer, K_MSEC(800), K_NO_WAIT);
} else if (ABS(rpm_diff) >= 500) {
duty_step = 6;
k_timer_start(&grace_period_timer, K_MSEC(800), K_NO_WAIT);
} else if (ABS(rpm_diff) >= 250) {
duty_step = 3;
k_timer_start(&grace_period_timer, K_MSEC(600), K_NO_WAIT);
} else {
duty_step = 1;
k_timer_start(&grace_period_timer, K_MSEC(600), K_NO_WAIT);
}
if (rpm_diff > 0)
duty = MIN(duty + duty_step, 100);
else
duty = MAX(duty - duty_step, 1);
fan_set_duty(ch, duty);
return FAN_STATUS_CHANGING;
}
#endif
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