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/* 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.
*/
/* Edgar board-specific configuration */
#include "adc.h"
#include "als.h"
#include "button.h"
#include "charger.h"
#include "charge_state.h"
#include "driver/temp_sensor/tmp432.h"
#include "extpower.h"
#include "gpio.h"
#include "hooks.h"
#include "host_command.h"
#include "i2c.h"
#include "lid_switch.h"
#include "math_util.h"
#include "power.h"
#include "power_button.h"
#include "pwm.h"
#include "pwm_chip.h"
#include "registers.h"
#include "temp_sensor.h"
#include "temp_sensor_chip.h"
#include "thermal.h"
#include "uart.h"
#include "util.h"
#include "adc_chip.h"
#define GPIO_KB_INPUT (GPIO_INPUT | GPIO_PULL_UP)
#define GPIO_KB_OUTPUT (GPIO_ODR_HIGH)
#define GPIO_KB_OUTPUT_COL2 (GPIO_OUT_LOW)
#include "gpio_list.h"
static int adc_get_val(int idx, int *temp_ptr);
/* power signal list. Must match order of enum power_signal. */
const struct power_signal_info power_signal_list[] = {
{GPIO_ALL_SYS_PGOOD, 1, "ALL_SYS_PWRGD"},
{GPIO_RSMRST_L_PGOOD, 1, "RSMRST_N_PWRGD"},
{GPIO_PCH_SLP_S3_L, 1, "SLP_S3#_DEASSERTED"},
{GPIO_PCH_SLP_S4_L, 1, "SLP_S4#_DEASSERTED"},
};
BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);
const struct adc_t adc_channels[] = {
{"ADC0", 1, 1, 0, 0},
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
const struct i2c_port_t i2c_ports[] = {
{"batt_chg", MEC1322_I2C0_0, 100,
GPIO_I2C_PORT0_0_SCL, GPIO_I2C_PORT0_0_SDA},
{"thermal", MEC1322_I2C3, 100,
GPIO_I2C_PORT3_SCL, GPIO_I2C_PORT3_SDA}
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
const enum gpio_signal hibernate_wake_pins[] = {
GPIO_POWER_BUTTON_L,
};
const int hibernate_wake_pins_used = ARRAY_SIZE(hibernate_wake_pins);
/*
* Temperature sensors data; must be in same order as enum temp_sensor_id.
* Sensor index and name must match those present in coreboot:
* src/mainboard/google/${board}/acpi/dptf.asl
*/
const struct temp_sensor_t temp_sensors[] = {
{"TMP432_Internal", TEMP_SENSOR_TYPE_BOARD, tmp432_get_val,
TMP432_IDX_LOCAL, 4},
{"TMP432_Sensor_1", TEMP_SENSOR_TYPE_BOARD, tmp432_get_val,
TMP432_IDX_REMOTE1, 4},
{"TMP432_Sensor_2", TEMP_SENSOR_TYPE_BOARD, tmp432_get_val,
TMP432_IDX_REMOTE2, 4},
{"ADC_Sensor_1", TEMP_SENSOR_TYPE_BOARD, adc_get_val,
ADC_CH_0, 4},
{"Battery", TEMP_SENSOR_TYPE_BATTERY, charge_temp_sensor_get_val,
0, 4},
};
BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);
/* Thermal limits for each temp sensor. All temps are in degrees K. Must be in
* same order as enum temp_sensor_id. To always ignore any temp, use 0.
*/
struct ec_thermal_config thermal_params[] = {
{{0, 0, 0}, 0, 0}, /* TMP432_Internal */
{{0, 0, 0}, 0, 0}, /* TMP432_Sensor_1 */
{{0, 0, 0}, 0, 0}, /* TMP432_Sensor_2 */
{{0, 0, 0}, 0, 0}, /* ADC_Sensor_1 */
{{0, 0, 0}, 0, 0}, /* Battery Sensor */
};
BUILD_ASSERT(ARRAY_SIZE(thermal_params) == TEMP_SENSOR_COUNT);
/* init ADC ports to avoid floating state due to thermistors */
static void adc_pre_init(void)
{
/* Configure GPIOs */
gpio_config_module(MODULE_ADC, 1);
}
DECLARE_HOOK(HOOK_INIT, adc_pre_init, HOOK_PRIO_INIT_ADC - 1);
static const int adc_temp[] = {
158780, 150690, 143060, 135870, 129070, 122660, 116600, 110870,
105450, 100330, 95488, 90904, 86565, 82456, 78565, 74878,
71384, 68071, 64930, 61951, 59124, 56442, 53895, 51478,
49181, 47000, 44927, 42957, 41084, 39303, 37609, 35997,
34463, 33004, 31614, 30290, 29029, 27828, 26683, 25592,
24551, 23559, 22613, 21710, 20848, 20025, 19239, 18489,
17772, 17087, 16432, 15807, 15208, 14636, 14088, 13564,
13063, 12582, 12123, 11682, 11260, 10856, 10468, 10097,
9704, 9398, 9070, 8756, 8454, 8164, 7885, 7618,
7361, 7114, 6876, 6648, 6429, 6217, 6014, 5819,
5631, 5450, 5276, 5108, 4947, 4791, 4641, 4496,
4357, 4223, 4093, 3968, 3848, 3732, 3620, 3511,
3407, 3306, 3209, 3115, 3024, 2936, 2851, 2769,
};
static int adc_get_val(int idx, int *temp_ptr)
{
int head, tail, mid;
int voltage_value = adc_read_channel(idx);
int ohm_value = (voltage_value == 1023)
? 158780 : (24900 * voltage_value) / (1023 - voltage_value);
/* Binary search to find proper table entry */
head = 0;
tail = ARRAY_SIZE(adc_temp)-1;
while (head != tail) {
mid = (head + tail) / 2;
if (adc_temp[mid] >= ohm_value &&
adc_temp[mid+1] < ohm_value)
break;
if (adc_temp[mid] > ohm_value)
head = mid + 1;
else
tail = mid;
}
/* Offset 3 dergee */
*temp_ptr = C_TO_K(mid) + 3;
return EC_SUCCESS;
}
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