466 lines
12 KiB
C
466 lines
12 KiB
C
/* Copyright 2015 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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/* Chell board-specific configuration */
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#include "adc_chip.h"
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#include "bd99992gw.h"
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#include "charge_manager.h"
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#include "charge_state.h"
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#include "charger.h"
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#include "chipset.h"
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#include "console.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 "host_command.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 "pi3usb9281.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 "spi.h"
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#include "switch.h"
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#include "system.h"
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#include "task.h"
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#include "tcpci.h"
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#include "temp_sensor.h"
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#include "timer.h"
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#include "uart.h"
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#include "usb_charge.h"
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#include "usb_mux.h"
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#include "usb_mux/ps874x.h"
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#include "usb_pd.h"
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#include "usb_pd_tcpm.h"
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#include "util.h"
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#define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args)
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#define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args)
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#define I2C_ADDR_BD99992_FLAGS 0x30
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/* Exchange status with PD MCU. */
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static void pd_mcu_interrupt(enum gpio_signal signal)
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{
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#ifdef HAS_TASK_PDCMD
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/* Exchange status with PD MCU to determine interrupt cause */
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host_command_pd_send_status(0);
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#endif
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}
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void vbus0_evt(enum gpio_signal signal)
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{
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/* VBUS present GPIO is inverted */
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usb_charger_vbus_change(0, !gpio_get_level(signal));
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task_wake(TASK_ID_PD_C0);
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}
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void vbus1_evt(enum gpio_signal signal)
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{
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/* VBUS present GPIO is inverted */
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usb_charger_vbus_change(1, !gpio_get_level(signal));
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task_wake(TASK_ID_PD_C1);
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}
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void usb0_evt(enum gpio_signal signal)
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{
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task_set_event(TASK_ID_USB_CHG_P0, USB_CHG_EVENT_BC12, 0);
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}
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void usb1_evt(enum gpio_signal signal)
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{
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task_set_event(TASK_ID_USB_CHG_P1, USB_CHG_EVENT_BC12, 0);
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}
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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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/* Vbus sensing. Converted to mV, full ADC is equivalent to 30V. */
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[ADC_VBUS] = {"VBUS", 30000, 1024, 0, 1},
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/* Adapter current output or battery discharging current */
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[ADC_AMON_BMON] = {"AMON_BMON", 25000, 3072, 0, 3},
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/* System current consumption */
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[ADC_PSYS] = {"PSYS", 1, 1, 0, 4},
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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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/* Use alternate 100kHz clock source, keep active in low-power idle */
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{2, PWM_CONFIG_ALT_CLOCK | PWM_CONFIG_DSLEEP},
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};
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BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);
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const struct i2c_port_t i2c_ports[] = {
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{"pmic", MEC1322_I2C0_0, 400, GPIO_I2C0_0_SCL, GPIO_I2C0_0_SDA},
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{"muxes", MEC1322_I2C0_1, 400, GPIO_I2C0_1_SCL, GPIO_I2C0_1_SDA},
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{"pd_mcu", MEC1322_I2C1, 500, GPIO_I2C1_SCL, GPIO_I2C1_SDA},
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{"batt", MEC1322_I2C3, 100, GPIO_I2C3_SCL, GPIO_I2C3_SDA},
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};
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const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
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const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = {
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{
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.bus_type = EC_BUS_TYPE_I2C,
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.i2c_info = {
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.port = I2C_PORT_TCPC,
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.addr_flags = CONFIG_TCPC_I2C_BASE_ADDR_FLAGS,
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},
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.drv = &tcpci_tcpm_drv,
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},
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{
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.bus_type = EC_BUS_TYPE_I2C,
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.i2c_info = {
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.port = I2C_PORT_TCPC,
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.addr_flags = CONFIG_TCPC_I2C_BASE_ADDR_FLAGS + 1,
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},
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.drv = &tcpci_tcpm_drv,
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},
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};
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/* SPI devices */
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const struct spi_device_t spi_devices[] = {
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{ CONFIG_SPI_FLASH_PORT, 0, GPIO_PVT_CS0},
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};
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const unsigned int spi_devices_used = ARRAY_SIZE(spi_devices);
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const enum gpio_signal hibernate_wake_pins[] = {
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GPIO_AC_PRESENT,
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GPIO_LID_OPEN,
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GPIO_POWER_BUTTON_L,
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};
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const int hibernate_wake_pins_used = ARRAY_SIZE(hibernate_wake_pins);
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#ifdef CONFIG_KEYBOARD_FACTORY_TEST
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/*
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* We have total 28 pins for keyboard connecter, {-1, -1} mean
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* the N/A pin that don't consider it and reserve index 0 area
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* that we don't have pin 0.
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*/
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const int keyboard_factory_scan_pins[][2] = {
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{-1, -1}, {-1, -1}, {-1, -1}, {-1, -1}, {-1, -1},
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{12, 6}, {4, 3}, {4, 2}, {0, 2}, {14, 2},
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{4, 0}, {0, 0}, {-1, -1}, {3, 2}, {10, 3},
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{10, 0}, {12, 5}, {-1, -1}, {10, 2}, {-1, -1},
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{0, 1}, {10, 4}, {-1, -1}, {-1, -1}, {0, 4},
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{10, 7}, {10, 6}, {0, 3}, {0, 5},
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};
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const int keyboard_factory_scan_pins_used =
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ARRAY_SIZE(keyboard_factory_scan_pins);
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#endif
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struct pi3usb9281_config pi3usb9281_chips[] = {
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{
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.i2c_port = I2C_PORT_USB_CHARGER_1,
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.mux_lock = NULL,
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},
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{
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.i2c_port = I2C_PORT_USB_CHARGER_2,
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.mux_lock = NULL,
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},
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};
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BUILD_ASSERT(ARRAY_SIZE(pi3usb9281_chips) ==
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CONFIG_BC12_DETECT_PI3USB9281_CHIP_COUNT);
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static int ps874x_tune_mux(int port)
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{
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/* Apply same USB EQ settings to both Type-C mux */
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ps874x_tune_usb_eq(port,
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PS874X_USB_EQ_TX_6_5_DB,
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PS874X_USB_EQ_RX_14_3_DB);
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return EC_SUCCESS;
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}
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struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_COUNT] = {
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{
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.port_addr = 0x1A,
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.driver = &ps874x_usb_mux_driver,
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.board_init = &ps874x_tune_mux,
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},
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{
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.port_addr = 0x10,
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.driver = &ps874x_usb_mux_driver,
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.board_init = &ps874x_tune_mux,
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}
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};
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/**
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* Reset PD MCU
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*/
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void board_reset_pd_mcu(void)
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{
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gpio_set_level(GPIO_PD_RST_L, 0);
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usleep(100);
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gpio_set_level(GPIO_PD_RST_L, 1);
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}
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const struct temp_sensor_t temp_sensors[] = {
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{"Battery", TEMP_SENSOR_TYPE_BATTERY, charge_get_battery_temp, 0, 4},
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/* These BD99992GW temp sensors are only readable in S0 */
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{"Ambient", TEMP_SENSOR_TYPE_BOARD, bd99992gw_get_val,
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BD99992GW_ADC_CHANNEL_SYSTHERM0, 4},
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{"Charger", TEMP_SENSOR_TYPE_BOARD, bd99992gw_get_val,
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BD99992GW_ADC_CHANNEL_SYSTHERM1, 4},
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{"DRAM", TEMP_SENSOR_TYPE_BOARD, bd99992gw_get_val,
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BD99992GW_ADC_CHANNEL_SYSTHERM2, 4},
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{"Wifi", TEMP_SENSOR_TYPE_BOARD, bd99992gw_get_val,
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BD99992GW_ADC_CHANNEL_SYSTHERM3, 4},
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};
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BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);
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static void board_pmic_init(void)
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{
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/* DISCHGCNT3 - enable 100 ohm discharge on V1.00A */
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i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x3e, 0x04);
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/*
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* No need to re-init below settings since they are present on all MP
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* ROs and PMIC settings are sticky across sysjump
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*/
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if (system_jumped_to_this_image())
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return;
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/* Set CSDECAYEN / VCCIO decays to 0V at assertion of SLP_S0# */
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i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x30, 0x4a);
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/*
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* Set V100ACNT / V1.00A Control Register:
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* Nominal output = 1.0V.
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*/
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i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x37, 0x1a);
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/*
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* Set V085ACNT / V0.85A Control Register:
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* Lower power mode = 0.7V.
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* Nominal output = 1.0V.
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*/
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i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x38, 0x7a);
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/* VRMODECTRL - enable low-power mode for VCCIO and V0.85A */
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i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x3b, 0x18);
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}
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DECLARE_HOOK(HOOK_INIT, board_pmic_init, HOOK_PRIO_DEFAULT);
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/* Initialize board. */
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static void board_init(void)
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{
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/* Enable PD MCU interrupt */
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gpio_enable_interrupt(GPIO_PD_MCU_INT);
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/* Enable VBUS interrupt */
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gpio_enable_interrupt(GPIO_USB_C0_VBUS_WAKE_L);
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gpio_enable_interrupt(GPIO_USB_C1_VBUS_WAKE_L);
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/* Enable pericom BC1.2 interrupts */
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gpio_enable_interrupt(GPIO_USB_C0_BC12_INT_L);
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gpio_enable_interrupt(GPIO_USB_C1_BC12_INT_L);
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/* Provide AC status to the PCH */
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gpio_set_level(GPIO_PCH_ACOK, extpower_is_present());
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/* Proto board workarounds */
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if (system_get_board_version() == 0) {
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/* Disable interrupt for SLP_S0 */
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gpio_set_flags(GPIO_PCH_SLP_S0_L,
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GPIO_INPUT | GPIO_PULL_DOWN);
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/* Add internal pullup on PLATFORM_EC_PROCHOT */
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gpio_set_flags(GPIO_PLATFORM_EC_PROCHOT,
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GPIO_INPUT | GPIO_PULL_UP);
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}
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}
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DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
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/**
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* Buffer the AC present GPIO to the PCH.
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*/
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static void board_extpower(void)
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{
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gpio_set_level(GPIO_PCH_ACOK, extpower_is_present());
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}
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DECLARE_HOOK(HOOK_AC_CHANGE, board_extpower, HOOK_PRIO_DEFAULT);
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/**
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* Set active charge port -- only one port can be active at a time.
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*
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* @param charge_port Charge port to enable.
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*
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* Returns EC_SUCCESS if charge port is accepted and made active,
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* EC_ERROR_* otherwise.
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*/
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int board_set_active_charge_port(int charge_port)
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{
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/* charge port is a realy physical port */
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int is_real_port = (charge_port >= 0 &&
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charge_port < CONFIG_USB_PD_PORT_COUNT);
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/* check if we are source vbus on that port */
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int source = gpio_get_level(charge_port == 0 ? GPIO_USB_C0_5V_EN :
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GPIO_USB_C1_5V_EN);
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if (is_real_port && source) {
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CPRINTS("Skip enable p%d", charge_port);
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return EC_ERROR_INVAL;
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}
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CPRINTS("New chg p%d", charge_port);
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if (charge_port == CHARGE_PORT_NONE) {
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/* Disable both ports */
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gpio_set_level(GPIO_USB_C0_CHARGE_EN_L, 1);
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gpio_set_level(GPIO_USB_C1_CHARGE_EN_L, 1);
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} else {
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/* Make sure non-charging port is disabled */
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gpio_set_level(charge_port ? GPIO_USB_C0_CHARGE_EN_L :
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GPIO_USB_C1_CHARGE_EN_L, 1);
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/* Enable charging port */
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gpio_set_level(charge_port ? GPIO_USB_C1_CHARGE_EN_L :
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GPIO_USB_C0_CHARGE_EN_L, 0);
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}
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return EC_SUCCESS;
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}
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/**
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* Set the charge limit based upon desired maximum.
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*
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* @param port Port number.
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* @param supplier Charge supplier type.
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* @param charge_ma Desired charge limit (mA).
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* @param charge_mv Negotiated charge voltage (mV).
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*/
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void board_set_charge_limit(int port, int supplier, int charge_ma,
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int max_ma, int charge_mv)
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{
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charge_set_input_current_limit(MAX(charge_ma,
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CONFIG_CHARGER_INPUT_CURRENT), charge_mv);
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}
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/* Called on AP S5 -> S3 transition */
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static void board_chipset_startup(void)
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{
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gpio_set_level(GPIO_USB1_ENABLE, 1);
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gpio_set_level(GPIO_ENABLE_TOUCHPAD, 1);
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}
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DECLARE_HOOK(HOOK_CHIPSET_STARTUP, board_chipset_startup, HOOK_PRIO_DEFAULT);
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/* Called on AP S3 -> S5 transition */
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static void board_chipset_shutdown(void)
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{
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gpio_set_level(GPIO_USB1_ENABLE, 0);
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gpio_set_level(GPIO_ENABLE_TOUCHPAD, 0);
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}
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DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, board_chipset_shutdown, HOOK_PRIO_DEFAULT);
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/* Called on AP S3 -> S0 transition */
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static void board_chipset_resume(void)
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{
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gpio_set_level(GPIO_ENABLE_BACKLIGHT, 1);
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gpio_set_level(GPIO_PP1800_DX_AUDIO_EN, 1);
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gpio_set_level(GPIO_PP1800_DX_DMIC_EN, 1);
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}
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DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT);
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/* Called on AP S0 -> S3 transition */
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static void board_chipset_suspend(void)
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{
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gpio_set_level(GPIO_ENABLE_BACKLIGHT, 0);
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gpio_set_level(GPIO_PP1800_DX_AUDIO_EN, 0);
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gpio_set_level(GPIO_PP1800_DX_DMIC_EN, 0);
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}
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DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT);
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void board_hibernate(void)
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{
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CPRINTS("Triggering PMIC shutdown.");
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uart_flush_output();
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/* Trigger PMIC shutdown. */
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if (i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x49, 0x01)) {
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/*
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* If we can't tell the PMIC to shutdown, instead reset
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* and don't start the AP. Hopefully we'll be able to
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* communicate with the PMIC next time.
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*/
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CPRINTS("PMIC i2c failed.");
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system_reset(SYSTEM_RESET_LEAVE_AP_OFF);
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}
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/* Await shutdown. */
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while (1)
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;
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}
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/* Make the pmic re-sequence the power rails under these conditions. */
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#define PMIC_RESET_FLAGS \
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(EC_RESET_FLAG_WATCHDOG | EC_RESET_FLAG_SOFT | EC_RESET_FLAG_HARD)
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static void board_handle_reboot(void)
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{
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int flags;
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if (system_jumped_to_this_image())
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return;
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/* Interrogate current reset flags from previous reboot. */
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flags = system_get_reset_flags();
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if (!(flags & PMIC_RESET_FLAGS))
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return;
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/* Preserve AP off request. */
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if (flags & EC_RESET_FLAG_AP_OFF)
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chip_save_reset_flags(EC_RESET_FLAG_AP_OFF);
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ccprintf("Restarting system with PMIC.\n");
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/* Flush console */
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cflush();
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/* Bring down all rails but RTC rail (including EC power). */
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gpio_set_level(GPIO_PMIC_LDO_EN, 1);
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while (1)
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; /* wait here */
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}
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DECLARE_HOOK(HOOK_INIT, board_handle_reboot, HOOK_PRIO_FIRST);
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/*
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* Various voltage rails will be enabled / disabled by the PMIC when
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* GPIO_PMIC_SLP_SUS_L changes. We need to delay the disable of V0.85A
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* by approximately 25ms in order to allow V1.00A to sufficiently discharge
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* first.
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*
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* Therefore, after GPIO_PMIC_SLP_SUS_L goes high, ignore the state of
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* the V12_EN pin: Keep V0.85A enabled.
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*
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* When GPIO_PMIC_SLP_SUS_L goes low, delay 25ms, and make V12_EN function
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* as normal - this should result in V0.85A discharging immediately after the
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* i2c write completes.
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*/
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void chipset_set_pmic_slp_sus_l(int level)
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{
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static int previous_level;
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int val;
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gpio_set_level(GPIO_PMIC_SLP_SUS_L, level);
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if (previous_level != level) {
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/* Rising edge: Force V0.85A enable. Falling: Pin control. */
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val = level ? 0x80 : 0;
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if (!level)
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msleep(25);
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i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS,
|
|
0x43, val);
|
|
previous_level = level;
|
|
}
|
|
}
|