155 lines
4.0 KiB
C
155 lines
4.0 KiB
C
/* Copyright 2018 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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/* Casta board-specific configuration */
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#include "adc.h"
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#include "adc_chip.h"
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#include "battery.h"
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#include "charge_manager.h"
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#include "charge_state.h"
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#include "common.h"
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#include "cros_board_info.h"
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#include "driver/charger/bd9995x.h"
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#include "driver/ppc/nx20p348x.h"
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#include "driver/tcpm/anx7447.h"
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#include "driver/tcpm/ps8xxx.h"
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#include "driver/tcpm/tcpci.h"
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#include "driver/tcpm/tcpm.h"
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#include "extpower.h"
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#include "gpio.h"
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#include "hooks.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 "power.h"
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#include "power_button.h"
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#include "switch.h"
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#include "system.h"
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#include "tcpci.h"
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#include "temp_sensor.h"
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#include "thermistor.h"
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#include "usb_mux.h"
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#include "usbc_ppc.h"
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#include "util.h"
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#define CPRINTSUSB(format, args...) cprints(CC_USBCHARGE, format, ## args)
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#define CPRINTFUSB(format, args...) cprintf(CC_USBCHARGE, format, ## args)
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#define CPRINTS(format, args...) cprints(CC_SYSTEM, format, ## args)
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static void ppc_interrupt(enum gpio_signal signal)
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{
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switch (signal) {
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case GPIO_USB_PD_C0_INT_ODL:
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nx20p348x_interrupt(0);
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break;
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case GPIO_USB_PD_C1_INT_ODL:
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nx20p348x_interrupt(1);
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break;
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default:
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break;
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}
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}
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/* Must come after other header files and GPIO interrupts*/
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#include "gpio_list.h"
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/* ADC channels */
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const struct adc_t adc_channels[] = {
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[ADC_TEMP_SENSOR_AMB] = {
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"TEMP_AMB", NPCX_ADC_CH0, ADC_MAX_VOLT, ADC_READ_MAX+1, 0},
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[ADC_TEMP_SENSOR_CHARGER] = {
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"TEMP_CHARGER", NPCX_ADC_CH1, ADC_MAX_VOLT, ADC_READ_MAX+1, 0},
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};
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BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
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/* TODO(b/119872005): Casta: confirm thermistor parts */
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const struct temp_sensor_t temp_sensors[] = {
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[TEMP_SENSOR_BATTERY] = {.name = "Battery",
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.type = TEMP_SENSOR_TYPE_BATTERY,
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.read = charge_get_battery_temp,
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.idx = 0,
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.action_delay_sec = 1},
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[TEMP_SENSOR_AMBIENT] = {.name = "Ambient",
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.type = TEMP_SENSOR_TYPE_BOARD,
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.read = get_temp_3v3_51k1_47k_4050b,
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.idx = ADC_TEMP_SENSOR_AMB,
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.action_delay_sec = 5},
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[TEMP_SENSOR_CHARGER] = {.name = "Charger",
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.type = TEMP_SENSOR_TYPE_BOARD,
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.read = get_temp_3v3_13k7_47k_4050b,
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.idx = ADC_TEMP_SENSOR_CHARGER,
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.action_delay_sec = 1},
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};
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BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);
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/*
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* I2C callbacks to ensure bus free time for battery I2C transactions is at
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* least 5ms.
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*/
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#define BATTERY_FREE_MIN_DELTA_US (5 * MSEC)
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static timestamp_t battery_last_i2c_time;
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static int is_battery_i2c(const int port, const uint16_t slave_addr_flags)
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{
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return (port == I2C_PORT_BATTERY)
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&& (slave_addr_flags == BATTERY_ADDR_FLAGS);
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}
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static int is_battery_port(int port)
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{
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return (port == I2C_PORT_BATTERY);
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}
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void i2c_start_xfer_notify(const int port, const uint16_t slave_addr_flags)
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{
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unsigned int time_delta_us;
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if (!is_battery_i2c(port, slave_addr_flags))
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return;
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time_delta_us = time_since32(battery_last_i2c_time);
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if (time_delta_us >= BATTERY_FREE_MIN_DELTA_US)
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return;
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usleep(BATTERY_FREE_MIN_DELTA_US - time_delta_us);
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}
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void i2c_end_xfer_notify(const int port, const uint16_t slave_addr_flags)
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{
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/*
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* The bus free time needs to be maintained from last transaction
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* on I2C bus to any device on it to the next transaction to battery.
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*/
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if (!is_battery_port(port))
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return;
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battery_last_i2c_time = get_time();
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}
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/* TODO: Casta: remove this routine after rev0 is not supported */
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static void board_init(void)
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{
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uint32_t val;
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if (cbi_get_board_version(&val) == EC_SUCCESS && val > 0)
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return;
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gpio_set_flags(GPIO_USB_C0_MUX_INT_ODL, GPIO_INT_FALLING | GPIO_PULL_UP);
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}
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DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
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void board_overcurrent_event(int port, int is_overcurrented)
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{
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/* Sanity check the port. */
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if ((port < 0) || (port >= CONFIG_USB_PD_PORT_COUNT))
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return;
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/* Note that the level is inverted because the pin is active low. */
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gpio_set_level(GPIO_USB_C_OC, !is_overcurrented);
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}
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