diff options
Diffstat (limited to 'board/lazor/board.c')
| -rw-r--r-- | board/lazor/board.c | 471 |
1 files changed, 471 insertions, 0 deletions
diff --git a/board/lazor/board.c b/board/lazor/board.c new file mode 100644 index 0000000000..720864e8c1 --- /dev/null +++ b/board/lazor/board.c @@ -0,0 +1,471 @@ +/* Copyright 2020 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. + */ + +/* Lazor board-specific configuration */ + +#include "adc_chip.h" +#include "button.h" +#include "charge_manager.h" +#include "charge_state.h" +#include "extpower.h" +#include "driver/accelgyro_bmi160.h" +#include "driver/ppc/sn5s330.h" +#include "driver/tcpm/ps8xxx.h" +#include "driver/tcpm/tcpci.h" +#include "gpio.h" +#include "hooks.h" +#include "lid_switch.h" +#include "pi3usb9201.h" +#include "power.h" +#include "power_button.h" +#include "pwm.h" +#include "pwm_chip.h" +#include "system.h" +#include "shi_chip.h" +#include "switch.h" +#include "task.h" +#include "usbc_ppc.h" + +#define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args) +#define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args) + +/* Forward declaration */ +static void tcpc_alert_event(enum gpio_signal signal); +static void usb0_evt(enum gpio_signal signal); +static void usb1_evt(enum gpio_signal signal); +static void ppc_interrupt(enum gpio_signal signal); +static void board_connect_c0_sbu(enum gpio_signal s); + +#include "gpio_list.h" + +/* GPIO Interrupt Handlers */ +static void tcpc_alert_event(enum gpio_signal signal) +{ + int port = -1; + + switch (signal) { + case GPIO_USB_C0_PD_INT_ODL: + port = 0; + break; + case GPIO_USB_C1_PD_INT_ODL: + port = 1; + break; + default: + return; + } + + schedule_deferred_pd_interrupt(port); +} + +static void usb0_evt(enum gpio_signal signal) +{ + task_set_event(TASK_ID_USB_CHG_P0, USB_CHG_EVENT_BC12, 0); +} + +static void usb1_evt(enum gpio_signal signal) +{ + task_set_event(TASK_ID_USB_CHG_P1, USB_CHG_EVENT_BC12, 0); +} + +static void ppc_interrupt(enum gpio_signal signal) +{ + switch (signal) { + case GPIO_USB_C0_SWCTL_INT_ODL: + sn5s330_interrupt(0); + break; + case GPIO_USB_C1_SWCTL_INT_ODL: + sn5s330_interrupt(1); + break; + default: + break; + } +} + +static void board_connect_c0_sbu_deferred(void) +{ + /* + * If CCD_MODE_ODL asserts, it means there's a debug accessory connected + * and we should enable the SBU FETs. + */ + ppc_set_sbu(0, 1); +} +DECLARE_DEFERRED(board_connect_c0_sbu_deferred); + +static void board_connect_c0_sbu(enum gpio_signal s) +{ + hook_call_deferred(&board_connect_c0_sbu_deferred_data, 0); +} + +/* ADC channels */ +const struct adc_t adc_channels[] = { + /* Measure VBUS through a 1/10 voltage divider */ + [ADC_VBUS] = { + "VBUS", + NPCX_ADC_CH1, + ADC_MAX_VOLT * 10, + ADC_READ_MAX + 1, + 0 + }, + /* + * Adapter current output or battery charging/discharging current (uV) + * 18x amplification on charger side. + */ + [ADC_AMON_BMON] = { + "AMON_BMON", + NPCX_ADC_CH2, + ADC_MAX_VOLT * 1000 / 18, + ADC_READ_MAX + 1, + 0 + }, + /* + * ISL9238 PSYS output is 1.44 uA/W over 5.6K resistor, to read + * 0.8V @ 99 W, i.e. 124000 uW/mV. Using ADC_MAX_VOLT*124000 and + * ADC_READ_MAX+1 as multiplier/divider leads to overflows, so we + * only divide by 2 (enough to avoid precision issues). + */ + [ADC_PSYS] = { + "PSYS", + NPCX_ADC_CH3, + ADC_MAX_VOLT * 124000 * 2 / (ADC_READ_MAX + 1), + 2, + 0 + }, +}; +BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT); + +const struct pwm_t pwm_channels[] = { + [PWM_CH_KBLIGHT] = { .channel = 3, .flags = 0, .freq = 10000 }, + /* TODO(waihong): Assign a proper frequency. */ + [PWM_CH_DISPLIGHT] = { .channel = 5, .flags = 0, .freq = 4800 }, +}; +BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT); + +/* Power Path Controller */ +struct ppc_config_t ppc_chips[] = { + { + .i2c_port = I2C_PORT_TCPC0, + .i2c_addr_flags = SN5S330_ADDR0_FLAGS, + .drv = &sn5s330_drv + }, + { + .i2c_port = I2C_PORT_TCPC1, + .i2c_addr_flags = SN5S330_ADDR0_FLAGS, + .drv = &sn5s330_drv + }, +}; +unsigned int ppc_cnt = ARRAY_SIZE(ppc_chips); + +/* TCPC mux configuration */ +const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = { + { + .bus_type = EC_BUS_TYPE_I2C, + .i2c_info = { + .port = I2C_PORT_TCPC0, + .addr_flags = PS8751_I2C_ADDR1_FLAGS, + }, + .drv = &ps8xxx_tcpm_drv, + }, + { + .bus_type = EC_BUS_TYPE_I2C, + .i2c_info = { + .port = I2C_PORT_TCPC1, + .addr_flags = PS8751_I2C_ADDR1_FLAGS, + }, + .drv = &ps8xxx_tcpm_drv, + }, +}; + +/* + * Port-0/1 USB mux driver. + * + * The USB mux is handled by TCPC chip and the HPD update is through a GPIO + * to AP. But the TCPC chip is also needed to know the HPD status; otherwise, + * the mux misbehaves. + */ +const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = { + { + .usb_port = 0, + .driver = &tcpci_tcpm_usb_mux_driver, + .hpd_update = &ps8xxx_tcpc_update_hpd_status, + }, + { + .usb_port = 1, + .driver = &tcpci_tcpm_usb_mux_driver, + .hpd_update = &ps8xxx_tcpc_update_hpd_status, + } +}; + +const int usb_port_enable[USB_PORT_COUNT] = { + GPIO_EN_USB_A_5V, +}; + +/* BC1.2 */ +const struct pi3usb9201_config_t pi3usb9201_bc12_chips[] = { + { + .i2c_port = I2C_PORT_POWER, + .i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS, + }, + { + .i2c_port = I2C_PORT_EEPROM, + .i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS, + }, +}; + +/* Initialize board. */ +static void board_init(void) +{ + /* Enable BC1.2 VBUS detection */ + gpio_enable_interrupt(GPIO_USB_C0_VBUS_DET_L); + gpio_enable_interrupt(GPIO_USB_C1_VBUS_DET_L); + + /* Enable BC1.2 interrupts */ + gpio_enable_interrupt(GPIO_USB_C0_BC12_INT_L); + gpio_enable_interrupt(GPIO_USB_C1_BC12_INT_L); + + /* Enable interrupt for BMI160 sensor */ + gpio_enable_interrupt(GPIO_ACCEL_GYRO_INT_L); + + /* + * The H1 SBU line for CCD are behind PPC chip. The PPC internal FETs + * for SBU may be disconnected after DP alt mode is off. Should enable + * the CCD_MODE_ODL interrupt to make sure the SBU FETs are connected. + */ + gpio_enable_interrupt(GPIO_CCD_MODE_ODL); +} +DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT); + +void board_tcpc_init(void) +{ + /* Only reset TCPC if not sysjump */ + if (!system_jumped_to_this_image()) { + /* TODO(crosbug.com/p/61098): How long do we need to wait? */ + board_reset_pd_mcu(); + } + + /* Enable PPC interrupts */ + gpio_enable_interrupt(GPIO_USB_C0_SWCTL_INT_ODL); + + /* Enable TCPC interrupts */ + gpio_enable_interrupt(GPIO_USB_C0_PD_INT_ODL); + gpio_enable_interrupt(GPIO_USB_C1_PD_INT_ODL); + + /* + * Initialize HPD to low; after sysjump SOC needs to see + * HPD pulse to enable video path + */ + for (int port = 0; port < CONFIG_USB_PD_PORT_MAX_COUNT; ++port) + usb_mux_hpd_update(port, 0, 0); +} +DECLARE_HOOK(HOOK_INIT, board_tcpc_init, HOOK_PRIO_INIT_I2C+1); + +/* Called on AP S0 -> S3 transition */ +static void board_chipset_suspend(void) +{ + /* + * Turn off display backlight in S3. AP has its own control. The EC's + * and the AP's will be AND'ed together in hardware. + */ + gpio_set_level(GPIO_ENABLE_BACKLIGHT, 0); + pwm_enable(PWM_CH_DISPLIGHT, 0); + + /* Disable the keyboard backlight */ + pwm_enable(PWM_CH_KBLIGHT, 0); +} +DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT); + +/* Called on AP S3 -> S0 transition */ +static void board_chipset_resume(void) +{ + /* Turn on display and keyboard backlight in S0. */ + gpio_set_level(GPIO_ENABLE_BACKLIGHT, 1); + pwm_enable(PWM_CH_DISPLIGHT, 1); + pwm_enable(PWM_CH_KBLIGHT, 1); +} +DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT); + +void board_reset_pd_mcu(void) +{ + cprints(CC_USB, "Resetting TCPCs..."); + cflush(); + + gpio_set_level(GPIO_USB_C0_PD_RST_L, 0); + gpio_set_level(GPIO_USB_C1_PD_RST_L, 0); + msleep(PS8XXX_RESET_DELAY_MS); + gpio_set_level(GPIO_USB_C0_PD_RST_L, 1); + gpio_set_level(GPIO_USB_C1_PD_RST_L, 1); +} + +void board_set_tcpc_power_mode(int port, int mode) +{ + /* Ignore the "mode" to turn the chip on. We can only do a reset. */ + if (mode) + return; + + board_reset_pd_mcu(); +} + +int board_vbus_sink_enable(int port, int enable) +{ + /* Both ports are controlled by PPC SN5S330 */ + return ppc_vbus_sink_enable(port, enable); +} + +int board_is_sourcing_vbus(int port) +{ + /* Both ports are controlled by PPC SN5S330 */ + return ppc_is_sourcing_vbus(port); +} + +void board_overcurrent_event(int port, int is_overcurrented) +{ + /* TODO(b/120231371): Notify AP */ + CPRINTS("p%d: overcurrent!", port); +} + +int board_set_active_charge_port(int port) +{ + int is_real_port = (port >= 0 && + port < CONFIG_USB_PD_PORT_MAX_COUNT); + int i; + + if (!is_real_port && port != CHARGE_PORT_NONE) + return EC_ERROR_INVAL; + + if (port == CHARGE_PORT_NONE) { + CPRINTS("Disabling all charging port"); + + /* Disable all ports. */ + for (i = 0; i < CONFIG_USB_PD_PORT_MAX_COUNT; i++) { + /* + * Do not return early if one fails otherwise we can + * get into a boot loop assertion failure. + */ + if (board_vbus_sink_enable(i, 0)) + CPRINTS("Disabling p%d sink path failed.", i); + } + + return EC_SUCCESS; + } + + /* Check if the port is sourcing VBUS. */ + if (board_is_sourcing_vbus(port)) { + CPRINTS("Skip enable p%d", port); + return EC_ERROR_INVAL; + } + + + CPRINTS("New charge port: p%d", port); + + /* + * Turn off the other ports' sink path FETs, before enabling the + * requested charge port. + */ + for (i = 0; i < CONFIG_USB_PD_PORT_MAX_COUNT; i++) { + if (i == port) + continue; + + if (board_vbus_sink_enable(i, 0)) + CPRINTS("p%d: sink path disable failed.", i); + } + + /* Enable requested charge port. */ + if (board_vbus_sink_enable(port, 1)) { + CPRINTS("p%d: sink path enable failed.", port); + return EC_ERROR_UNKNOWN; + } + + return EC_SUCCESS; +} + +void board_set_charge_limit(int port, int supplier, int charge_ma, + int max_ma, int charge_mv) +{ + /* + * Ignore lower charge ceiling on PD transition if our battery is + * critical, as we may brownout. + */ + if (supplier == CHARGE_SUPPLIER_PD && + charge_ma < 1500 && + charge_get_percent() < CONFIG_CHARGER_MIN_BAT_PCT_FOR_POWER_ON) { + CPRINTS("Using max ilim %d", max_ma); + charge_ma = max_ma; + } + + charge_set_input_current_limit(MAX(charge_ma, + CONFIG_CHARGER_INPUT_CURRENT), + charge_mv); +} + +uint16_t tcpc_get_alert_status(void) +{ + uint16_t status = 0; + + if (!gpio_get_level(GPIO_USB_C0_PD_INT_ODL)) + if (gpio_get_level(GPIO_USB_C0_PD_RST_L)) + status |= PD_STATUS_TCPC_ALERT_0; + if (!gpio_get_level(GPIO_USB_C1_PD_INT_ODL)) + if (gpio_get_level(GPIO_USB_C1_PD_RST_L)) + status |= PD_STATUS_TCPC_ALERT_1; + + return status; +} + +/* Mutexes */ +static struct mutex g_base_mutex; + +static struct bmi160_drv_data_t g_bmi160_data; + +/* Matrix to rotate accelerometer into standard reference frame */ +const mat33_fp_t base_standard_ref = { + { FLOAT_TO_FP(-1), 0, 0}, + { 0, FLOAT_TO_FP(-1), 0}, + { 0, 0, FLOAT_TO_FP(1)} +}; + +struct motion_sensor_t motion_sensors[] = { + /* + * Note: bmi160: supports accelerometer and gyro sensor + * Requirement: accelerometer sensor must init before gyro sensor + * DO NOT change the order of the following table. + */ + [BASE_ACCEL] = { + .name = "Base Accel", + .active_mask = SENSOR_ACTIVE_S0_S3_S5, + .chip = MOTIONSENSE_CHIP_BMI160, + .type = MOTIONSENSE_TYPE_ACCEL, + .location = MOTIONSENSE_LOC_LID, + .drv = &bmi160_drv, + .mutex = &g_base_mutex, + .drv_data = &g_bmi160_data, + .port = I2C_PORT_SENSOR, + .i2c_spi_addr_flags = BMI160_ADDR0_FLAGS, + .rot_standard_ref = &base_standard_ref, + .default_range = 4, /* g, to meet CDD 7.3.1/C-1-4 reqs */ + .min_frequency = BMI160_ACCEL_MIN_FREQ, + .max_frequency = BMI160_ACCEL_MAX_FREQ, + .config = { + [SENSOR_CONFIG_EC_S0] = { + .odr = 10000 | ROUND_UP_FLAG, + }, + }, + }, + [BASE_GYRO] = { + .name = "Gyro", + .active_mask = SENSOR_ACTIVE_S0_S3_S5, + .chip = MOTIONSENSE_CHIP_BMI160, + .type = MOTIONSENSE_TYPE_GYRO, + .location = MOTIONSENSE_LOC_LID, + .drv = &bmi160_drv, + .mutex = &g_base_mutex, + .drv_data = &g_bmi160_data, + .port = I2C_PORT_SENSOR, + .i2c_spi_addr_flags = BMI160_ADDR0_FLAGS, + .default_range = 1000, /* dps */ + .rot_standard_ref = &base_standard_ref, + .min_frequency = BMI160_GYRO_MIN_FREQ, + .max_frequency = BMI160_GYRO_MAX_FREQ, + }, +}; +const unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors); |