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/* Copyright (c) 2013 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.
*/
/* EC for Falco board configuration */
#include "adc.h"
#include "board.h"
#include "chip_temp_sensor.h"
#include "common.h"
#include "ec_commands.h"
#include "extpower.h"
#include "gpio.h"
#include "host_command.h"
#include "i2c.h"
#include "keyboard_scan.h"
#include "lid_switch.h"
#include "lm4_adc.h"
#include "peci.h"
#include "power_button.h"
#include "registers.h"
#include "switch.h"
#include "temp_sensor.h"
#include "timer.h"
#include "tmp006.h"
#include "util.h"
#include "x86_power.h"
/* GPIO signal list. Must match order from enum gpio_signal. */
const struct gpio_info gpio_list[GPIO_COUNT] = {
/* Inputs with interrupt handlers are first for efficiency */
{"POWER_BUTTON_L", LM4_GPIO_A, (1<<2), GPIO_INT_BOTH,
power_button_interrupt},
{"LID_OPEN", LM4_GPIO_A, (1<<3), GPIO_INT_BOTH,
lid_interrupt},
{"AC_PRESENT", LM4_GPIO_H, (1<<3), GPIO_INT_BOTH,
extpower_interrupt},
{"PCH_BKLTEN", LM4_GPIO_M, (1<<3), GPIO_INT_BOTH,
switch_interrupt},
{"PCH_SLP_S0_L", LM4_GPIO_G, (1<<6), GPIO_INT_BOTH,
x86_power_interrupt},
{"PCH_SLP_S3_L", LM4_GPIO_G, (1<<7), GPIO_INT_BOTH,
x86_power_interrupt},
{"PCH_SLP_S5_L", LM4_GPIO_H, (1<<1), GPIO_INT_BOTH,
x86_power_interrupt},
{"PCH_SLP_SUS_L", LM4_GPIO_G, (1<<3), GPIO_INT_BOTH,
x86_power_interrupt},
{"PCH_SUSWARN_L", LM4_GPIO_G, (1<<2), GPIO_INT_BOTH,
x86_power_interrupt},
{"PP1050_PGOOD", LM4_GPIO_H, (1<<4), GPIO_INT_BOTH,
x86_power_interrupt},
{"PP1350_PGOOD", LM4_GPIO_H, (1<<6), GPIO_INT_BOTH,
x86_power_interrupt},
{"PP5000_PGOOD", LM4_GPIO_N, (1<<0), GPIO_INT_BOTH,
x86_power_interrupt},
{"VCORE_PGOOD", LM4_GPIO_C, (1<<6), GPIO_INT_BOTH,
x86_power_interrupt},
{"PCH_EDP_VDD_EN", LM4_GPIO_J, (1<<1), GPIO_INT_BOTH,
x86_power_interrupt},
{"RECOVERY_L", LM4_GPIO_A, (1<<5), GPIO_PULL_UP|GPIO_INT_BOTH,
switch_interrupt},
{"WP", LM4_GPIO_A, (1<<4), GPIO_INT_BOTH,
switch_interrupt},
/* Other inputs */
{"FAN_ALERT_L", LM4_GPIO_B, (1<<0), GPIO_INPUT, NULL},
{"USB1_OC_L", LM4_GPIO_E, (1<<7), GPIO_INPUT, NULL},
{"USB2_OC_L", LM4_GPIO_E, (1<<0), GPIO_INPUT, NULL},
{"BOARD_VERSION1", LM4_GPIO_Q, (1<<5), GPIO_INPUT, NULL},
{"BOARD_VERSION2", LM4_GPIO_Q, (1<<6), GPIO_INPUT, NULL},
{"BOARD_VERSION3", LM4_GPIO_Q, (1<<7), GPIO_INPUT, NULL},
{"CPU_PGOOD", LM4_GPIO_C, (1<<4), GPIO_INPUT, NULL},
/* Outputs; all unasserted by default except for reset signals */
{"CPU_PROCHOT", LM4_GPIO_B, (1<<1), GPIO_OUT_LOW, NULL},
{"PP1350_EN", LM4_GPIO_H, (1<<5), GPIO_OUT_LOW, NULL},
{"PP3300_DSW_GATED_EN", LM4_GPIO_J, (1<<3), GPIO_OUT_LOW, NULL},
{"PP3300_DX_EN", LM4_GPIO_J, (1<<2), GPIO_OUT_LOW, NULL},
{"PP3300_LTE_EN", LM4_GPIO_D, (1<<2), GPIO_OUT_LOW, NULL},
{"PP3300_WLAN_EN", LM4_GPIO_J, (1<<0), GPIO_OUT_LOW, NULL},
{"SUSP_VR_EN", LM4_GPIO_C, (1<<7), GPIO_OUT_LOW, NULL},
{"VCORE_EN", LM4_GPIO_C, (1<<5), GPIO_OUT_LOW, NULL},
{"PP5000_EN", LM4_GPIO_H, (1<<7), GPIO_OUT_LOW, NULL},
{"SYS_PWROK", LM4_GPIO_H, (1<<2), GPIO_OUT_LOW, NULL},
{"WLAN_OFF_L", LM4_GPIO_J, (1<<4), GPIO_OUT_LOW, NULL},
{"CHARGE_L", LM4_GPIO_E, (1<<6), GPIO_OUT_LOW, NULL},
{"ENABLE_BACKLIGHT", LM4_GPIO_M, (1<<7), GPIO_OUT_LOW, NULL},
{"ENABLE_TOUCHPAD", LM4_GPIO_N, (1<<1), GPIO_OUT_LOW, NULL},
{"ENTERING_RW", LM4_GPIO_D, (1<<3), GPIO_OUT_LOW, NULL},
{"PCH_DPWROK", LM4_GPIO_G, (1<<0), GPIO_OUT_LOW, NULL},
/*
* HDA_SDO is technically an output, but we need to leave it as an
* input until we drive it high. So can't use open-drain (HI_Z).
*/
{"PCH_HDA_SDO", LM4_GPIO_G, (1<<1), GPIO_INPUT, NULL},
{"PCH_WAKE_L", LM4_GPIO_F, (1<<0), GPIO_OUT_HIGH, NULL},
{"PCH_NMI_L", LM4_GPIO_F, (1<<2), GPIO_OUT_HIGH, NULL},
{"PCH_PWRBTN_L", LM4_GPIO_H, (1<<0), GPIO_OUT_HIGH, NULL},
{"PCH_PWROK", LM4_GPIO_F, (1<<5), GPIO_OUT_LOW, NULL},
{"PCH_RCIN_L", LM4_GPIO_L, (1<<6), GPIO_ODR_LOW, NULL},
{"PCH_RSMRST_L", LM4_GPIO_F, (1<<1), GPIO_OUT_LOW, NULL},
{"PCH_SMI_L", LM4_GPIO_F, (1<<4), GPIO_OUT_HIGH, NULL},
{"TOUCHSCREEN_RESET_L", LM4_GPIO_N, (1<<7), GPIO_OUT_LOW, NULL},
{"EC_EDP_VDD_EN", LM4_GPIO_J, (1<<5), GPIO_OUT_LOW, NULL},
{"LPC_CLKRUN_L", LM4_GPIO_M, (1<<2), GPIO_OUT_HIGH, NULL},
{"USB1_ENABLE", LM4_GPIO_E, (1<<4), GPIO_OUT_LOW, NULL},
{"USB2_ENABLE", LM4_GPIO_D, (1<<5), GPIO_OUT_LOW, NULL},
{"PCH_SUSACK_L", LM4_GPIO_F, (1<<3), GPIO_OUT_HIGH, NULL},
{"PCH_RTCRST_L", LM4_GPIO_F, (1<<6), GPIO_ODR_HIGH, NULL},
{"PCH_SRTCRST_L", LM4_GPIO_F, (1<<7), GPIO_ODR_HIGH, NULL},
{"PWR_LED_L", LM4_GPIO_N, (1<<6), GPIO_OUT_HIGH, NULL},
{"KB_LED_EN", LM4_GPIO_D, (1<<4), GPIO_OUT_LOW, NULL},
{"BAT_LED0", LM4_GPIO_D, (1<<0), GPIO_OUT_LOW, NULL},
{"BAT_LED1", LM4_GPIO_D, (1<<1), GPIO_OUT_LOW, NULL},
};
/* ADC channels. Must be in the exactly same order as in enum adc_channel. */
const struct adc_t adc_channels[ADC_CH_COUNT] = {
/* EC internal temperature is calculated by
* 273 + (295 - 450 * ADC_VALUE / ADC_READ_MAX) / 2
* = -225 * ADC_VALUE / ADC_READ_MAX + 420.5
*/
{"ECTemp", LM4_ADC_SEQ0, -225, ADC_READ_MAX, 420,
LM4_AIN_NONE, 0x0e /* TS0 | IE0 | END0 */, 0, 0},
/* IOUT == ICMNT is on PE3/AIN0 */
/* We have 0.01-ohm resistors, and IOUT is 20X the differential
* voltage, so 1000mA ==> 200mV.
* ADC returns 0x000-0xFFF, which maps to 0.0-3.3V (as configured).
* mA = 1000 * ADC_VALUE / ADC_READ_MAX * 3300 / 200
*/
{"ChargerCurrent", LM4_ADC_SEQ1, 33000, ADC_READ_MAX * 2, 0,
LM4_AIN(0), 0x06 /* IE0 | END0 */, LM4_GPIO_E, (1<<3)},
/* AC Adapter ID voltage (mv) */
{"AdapterIDVoltage", LM4_ADC_SEQ2, 3300, ADC_READ_MAX, 0,
LM4_AIN(11), 0x06 /* IE0 | END0 */, LM4_GPIO_B, (1<<5)},
};
/* I2C ports */
const struct i2c_port_t i2c_ports[I2C_PORTS_USED] = {
/* Note: battery and charger share a port. Only include it once in
* this list so we don't double-initialize it. */
{"batt_chg", I2C_PORT_BATTERY, 100},
{"lvds", I2C_PORT_LVDS, 100},
{"thermal", I2C_PORT_THERMAL, 100},
};
/* Temperature sensors data; must be in same order as enum temp_sensor_id. */
const struct temp_sensor_t temp_sensors[TEMP_SENSOR_COUNT] = {
/* HEY: Need correct I2C addresses and read function for external sensor */
{"ECInternal", TEMP_SENSOR_TYPE_BOARD, chip_temp_sensor_get_val, 0, 4},
#ifdef CONFIG_PECI
{"PECI", TEMP_SENSOR_TYPE_CPU, peci_temp_sensor_get_val, 0, 2},
#endif
};
struct keyboard_scan_config keyscan_config = {
.output_settle_us = 40,
.debounce_down_us = 6 * MSEC,
.debounce_up_us = 30 * MSEC,
.scan_period_us = 1500,
.min_post_scan_delay_us = 1000,
.poll_timeout_us = SECOND,
.actual_key_mask = {
0x14, 0xff, 0xff, 0xff, 0xff, 0xf5, 0xff,
0xa4, 0xff, 0xf6, 0x55, 0xfa, 0xc8 /* full set */
},
};
/**
* Configure the GPIOs for the pwm module.
*/
void configure_fan_gpios(void)
{
/* PN2:3 alternate function 1 = channel 0 PWM/tach */
gpio_set_alternate_function(LM4_GPIO_N, 0x0c, 1);
}
/**
* Set wireless switch state.
*/
void board_enable_wireless(uint8_t enabled)
{
gpio_set_level(GPIO_WLAN_OFF_L,
enabled & EC_WIRELESS_SWITCH_WLAN);
gpio_set_level(GPIO_PP3300_LTE_EN,
enabled & EC_WIRELESS_SWITCH_WWAN);
}
/**
* Perform necessary actions on host wake events.
*/
void board_process_wake_events(uint32_t active_wake_events)
{
uint32_t power_button_mask;
power_button_mask = EC_HOST_EVENT_MASK(EC_HOST_EVENT_POWER_BUTTON);
/* If there are other events aside from the power button press drive
* the wake pin. Otherwise ensure it is high. */
if (active_wake_events & ~power_button_mask)
gpio_set_level(GPIO_PCH_WAKE_L, 0);
else
gpio_set_level(GPIO_PCH_WAKE_L, 1);
}
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