mirror of
https://github.com/Telecominfraproject/OpenCellular.git
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41cde66516
The fans on samus have a recommended minimum duty cycle of 20% while running, but 30% in order to start. We've been using the EC's built-in fan controller for the start requirement, but it has a minimum fast-start duty cycle of 50%. It turns out that that speed is noticeably noisy. This change handles the startup with logic in the EC instead, so that the fan only tries to spin at 30% initially (or if it drops too much below the minimum turning speed). BUG=chrome-os-partner:33429 BRANCH=ToT,samus TEST=make buildall -j Boot the system, let it idle with the browser windows closed, the browse a bit, then idle. Listen for changes to the fans. Before, I could hear the fans kick in and out as the AP load changed. Now it's much quieter. Change-Id: Id35215520c064eb6843686ec8bb5f3618dac6cf6 Signed-off-by: Bill Richardson <wfrichar@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/227658 Reviewed-by: Randall Spangler <rspangler@chromium.org>
159 lines
5.3 KiB
C
159 lines
5.3 KiB
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* EC for Link board configuration */
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#include "adc.h"
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#include "adc_chip.h"
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#include "backlight.h"
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#include "chipset.h"
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#include "common.h"
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#include "driver/temp_sensor/tmp006.h"
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#include "extpower.h"
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#include "fan.h"
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#include "gpio.h"
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#include "i2c.h"
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#include "keyboard_scan.h"
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#include "lid_switch.h"
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#include "peci.h"
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#include "power.h"
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#include "power_button.h"
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#include "pwm.h"
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#include "pwm_chip.h"
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#include "registers.h"
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#include "switch.h"
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#include "temp_sensor.h"
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#include "temp_sensor_chip.h"
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#include "timer.h"
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#include "thermal.h"
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#include "util.h"
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#include "gpio_list.h"
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/* power signal list. Must match order of enum power_signal. */
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const struct power_signal_info power_signal_list[] = {
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{GPIO_PGOOD_5VALW, 1, "PGOOD_5VALW"},
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{GPIO_PGOOD_1_5V_DDR, 1, "PGOOD_1_5V_DDR"},
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{GPIO_PGOOD_1_5V_PCH, 1, "PGOOD_1_5V_PCH"},
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{GPIO_PGOOD_1_8VS, 1, "PGOOD_1_8VS"},
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{GPIO_PGOOD_VCCP, 1, "PGOOD_VCCP"},
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{GPIO_PGOOD_VCCSA, 1, "PGOOD_VCCSA"},
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{GPIO_PGOOD_CPU_CORE, 1, "PGOOD_CPU_CORE"},
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{GPIO_PGOOD_VGFX_CORE, 1, "PGOOD_VGFX_CORE"},
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{GPIO_PCH_SLP_S3_L, 1, "SLP_S3#_DEASSERTED"},
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{GPIO_PCH_SLP_S4_L, 1, "SLP_S4#_DEASSERTED"},
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{GPIO_PCH_SLP_S5_L, 1, "SLP_S5#_DEASSERTED"},
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{GPIO_PCH_SLP_A_L, 1, "SLP_A#_DEASSERTED"},
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{GPIO_PCH_SLP_SUS_L, 1, "SLP_SUS#_DEASSERTED"},
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{GPIO_PCH_SLP_ME_CSW_DEV_L, 1, "SLP_ME#_DEASSERTED"},
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};
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BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);
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/* ADC channels. Must be in the exactly same order as in enum adc_channel. */
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const struct adc_t adc_channels[] = {
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/* EC internal temperature is calculated by
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* 273 + (295 - 450 * ADC_VALUE / ADC_READ_MAX) / 2
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* = -225 * ADC_VALUE / ADC_READ_MAX + 420.5
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*/
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{"ECTemp", LM4_ADC_SEQ0, -225, ADC_READ_MAX, 420,
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LM4_AIN_NONE, 0x0e /* TS0 | IE0 | END0 */, 0, 0},
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/* Charger current is mapped from 0~4000mA to 0~1.6V.
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* And ADC maps 0~3.3V to ADC_READ_MAX.
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*/
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{"ChargerCurrent", LM4_ADC_SEQ1, 33 * 4000, ADC_READ_MAX * 16, 0,
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LM4_AIN(11), 0x06 /* IE0 | END0 */, LM4_GPIO_B, (1<<5)},
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};
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BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
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/* PWM channels. Must be in the exactly same order as in enum pwm_channel. */
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const struct pwm_t pwm_channels[] = {
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{1, 0},
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};
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BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);
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/* Physical fans. These are logically separate from pwm_channels. */
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const struct fan_t fans[] = {
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{.flags = FAN_USE_RPM_MODE,
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.rpm_min = 1500,
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.rpm_start = 1500,
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.rpm_max = 9300,
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.ch = 0,
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.pgood_gpio = GPIO_PGOOD_5VALW,
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.enable_gpio = -1,
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},
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};
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BUILD_ASSERT(ARRAY_SIZE(fans) == CONFIG_FANS);
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/* I2C ports */
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const struct i2c_port_t i2c_ports[] = {
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{"batt_chg", 0, 100},
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{"lightbar", 1, 400},
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{"thermal", 5, 100},
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};
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const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
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#define TEMP_PCH_REG_ADDR ((0x41 << 1) | I2C_FLAG_BIG_ENDIAN)
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#define TEMP_CHARGER_REG_ADDR ((0x43 << 1) | I2C_FLAG_BIG_ENDIAN)
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#define TEMP_USB_REG_ADDR ((0x46 << 1) | I2C_FLAG_BIG_ENDIAN)
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#define TEMP_HINGE_REG_ADDR ((0x44 << 1) | I2C_FLAG_BIG_ENDIAN)
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#define TEMP_PCH_ADDR TMP006_ADDR(I2C_PORT_THERMAL, TEMP_PCH_REG_ADDR)
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#define TEMP_CHARGER_ADDR TMP006_ADDR(I2C_PORT_THERMAL, TEMP_CHARGER_REG_ADDR)
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#define TEMP_USB_ADDR TMP006_ADDR(I2C_PORT_THERMAL, TEMP_USB_REG_ADDR)
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#define TEMP_HINGE_ADDR TMP006_ADDR(I2C_PORT_THERMAL, TEMP_HINGE_REG_ADDR)
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/* Temperature sensors data; must be in same order as enum temp_sensor_id. */
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const struct temp_sensor_t temp_sensors[] = {
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{"I2C-USB C-Die", TEMP_SENSOR_TYPE_IGNORED, tmp006_get_val, 0, 7},
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{"I2C-USB C-Object", TEMP_SENSOR_TYPE_IGNORED, tmp006_get_val, 1, 7},
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{"I2C-PCH D-Die", TEMP_SENSOR_TYPE_BOARD, tmp006_get_val, 2, 7},
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{"I2C-PCH D-Object", TEMP_SENSOR_TYPE_CASE, tmp006_get_val, 3, 7},
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{"I2C-Hinge C-Die", TEMP_SENSOR_TYPE_IGNORED, tmp006_get_val, 4, 7},
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{"I2C-Hinge C-Object", TEMP_SENSOR_TYPE_IGNORED, tmp006_get_val, 5, 7},
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{"I2C-Charger D-Die", TEMP_SENSOR_TYPE_BOARD, tmp006_get_val, 6, 7},
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{"I2C-Charger D-Object", TEMP_SENSOR_TYPE_CASE, tmp006_get_val, 7, 7},
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{"ECInternal", TEMP_SENSOR_TYPE_BOARD, chip_temp_sensor_get_val, 0, 4},
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{"PECI", TEMP_SENSOR_TYPE_CPU, peci_temp_sensor_get_val, 0, 2},
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};
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BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);
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/* Thermal limits for each temp sensor. All temps are in degrees K. Must be in
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* same order as enum temp_sensor_id. To always ignore any temp, use 0.
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*/
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struct ec_thermal_config thermal_params[] = {
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{{0, 0, 0}, 0, 0},
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{{0, 0, 0}, 0, 0},
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{{0, 0, 0}, 0, 0},
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{{0, 0, 0}, 0, 0},
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{{0, 0, 0}, 0, 0},
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{{0, 0, 0}, 0, 0},
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{{0, 0, 0}, 0, 0},
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{{0, 0, 0}, 0, 0},
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{{0, 0, 0}, 0, 0},
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/* Only the AP affects the thermal limits and fan speed. */
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{{C_TO_K(100), C_TO_K(102), C_TO_K(104)}, C_TO_K(60), C_TO_K(90)},
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};
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BUILD_ASSERT(ARRAY_SIZE(thermal_params) == TEMP_SENSOR_COUNT);
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const struct tmp006_t tmp006_sensors[TMP006_COUNT] = {
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{"USB C", TEMP_USB_ADDR},
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{"PCH D", TEMP_PCH_ADDR},
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{"Hinge C", TEMP_HINGE_ADDR},
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{"Charger D", TEMP_CHARGER_ADDR},
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};
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struct keyboard_scan_config keyscan_config = {
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.output_settle_us = 40,
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.debounce_down_us = 6 * MSEC,
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.debounce_up_us = 30 * MSEC,
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.scan_period_us = 1500,
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.min_post_scan_delay_us = 1000,
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.poll_timeout_us = SECOND,
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.actual_key_mask = {
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0x14, 0xff, 0xff, 0xff, 0xff, 0xf5, 0xff,
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0xa4, 0xff, 0xf6, 0x55, 0xfa, 0xc8 /* full set */
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},
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};
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