| /* Copyright 2016 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. |
| */ |
| |
| /* Oak board configuration */ |
| |
| #include "adc.h" |
| #include "adc_chip.h" |
| #include "als.h" |
| #include "atomic.h" |
| #include "battery.h" |
| #include "charge_manager.h" |
| #include "charge_state.h" |
| #include "charger.h" |
| #include "chipset.h" |
| #include "common.h" |
| #include "console.h" |
| #include "driver/accel_kionix.h" |
| #include "driver/accel_kx022.h" |
| #include "driver/als_isl29035.h" |
| #include "driver/tcpm/anx7688.h" |
| #include "driver/tcpm/tcpci.h" |
| #include "driver/temp_sensor/tmp432.h" |
| #include "extpower.h" |
| #include "gpio.h" |
| #include "hooks.h" |
| #include "host_command.h" |
| #include "i2c.h" |
| #include "keyboard_raw.h" |
| #include "keyboard_scan.h" |
| #include "lid_switch.h" |
| #include "math_util.h" |
| #include "motion_lid.h" |
| #include "motion_sense.h" |
| #include "pi3usb9281.h" |
| #include "power.h" |
| #include "power_button.h" |
| #include "registers.h" |
| #include "spi.h" |
| #include "switch.h" |
| #include "system.h" |
| #include "task.h" |
| #include "temp_sensor.h" |
| #include "temp_sensor_chip.h" |
| #include "thermal.h" |
| #include "timer.h" |
| #include "usb_charge.h" |
| #include "usb_mux.h" |
| #include "usb_pd.h" |
| #include "usb_pd_tcpm.h" |
| #include "util.h" |
| |
| #define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args) |
| #define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args) |
| |
| /* Dispaly port hardware can connect to port 0, 1 or neither. */ |
| #define PD_PORT_NONE -1 |
| |
| void pd_mcu_interrupt(enum gpio_signal signal) |
| { |
| #ifdef HAS_TASK_PDCMD |
| /* Exchange status with PD MCU to determine interrupt cause */ |
| host_command_pd_send_status(0); |
| #endif |
| } |
| |
| void deferred_reset_pd_mcu(void); |
| DECLARE_DEFERRED(deferred_reset_pd_mcu); |
| |
| void usb_evt(enum gpio_signal signal) |
| { |
| if (!gpio_get_level(GPIO_BC12_WAKE_L)) |
| task_set_event(TASK_ID_USB_CHG_P0, USB_CHG_EVENT_BC12, 0); |
| } |
| |
| #include "gpio_list.h" |
| |
| /* power signal list. Must match order of enum power_signal. */ |
| const struct power_signal_info power_signal_list[] = { |
| {GPIO_SOC_POWER_GOOD, 1, "POWER_GOOD"}, /* Active high */ |
| {GPIO_SUSPEND_L, 0, "SUSPEND#_ASSERTED"}, /* Active low */ |
| }; |
| BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT); |
| |
| /* ADC channels */ |
| const struct adc_t adc_channels[] = { |
| /* |
| * PSYS_MONITOR(PA2): ADC_IN2, 1.44 uA/W on 6.05k Ohm |
| * output in mW |
| */ |
| [ADC_PSYS] = {"PSYS", 379415, 4096, 0, STM32_AIN(2)}, |
| /* AMON_BMON(PC0): ADC_IN10, output in uV */ |
| [ADC_AMON_BMON] = {"AMON_BMON", 183333, 4096, 0, STM32_AIN(10)}, |
| /* VDC_BOOSTIN_SENSE(PC1): ADC_IN11, output in mV */ |
| [ADC_VBUS] = {"VBUS", 33000, 4096, 0, STM32_AIN(11)}, |
| }; |
| BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT); |
| |
| int anx7688_passthru_allowed(const struct i2c_port_t *port, uint16_t address) |
| { |
| /* Allow access to 0x2c (TCPC) */ |
| if (address == 0x2c) |
| return 1; |
| |
| CPRINTF("Passthru rejected on %x", address); |
| |
| return 0; |
| } |
| |
| /* I2C ports */ |
| const struct i2c_port_t i2c_ports[] = { |
| {"battery", I2C_PORT_BATTERY, 100, GPIO_I2C0_SCL, GPIO_I2C0_SDA}, |
| {"pd", I2C_PORT_PD_MCU, 1000, GPIO_I2C1_SCL, GPIO_I2C1_SDA, |
| anx7688_passthru_allowed} |
| }; |
| |
| const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports); |
| |
| /* SPI devices */ |
| const struct spi_device_t spi_devices[] = { |
| { CONFIG_SPI_ACCEL_PORT, 2, GPIO_SPI2_NSS }, |
| }; |
| const unsigned int spi_devices_used = ARRAY_SIZE(spi_devices); |
| |
| /* TCPC */ |
| const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = { |
| {I2C_PORT_TCPC, CONFIG_TCPC_I2C_BASE_ADDR, &anx7688_tcpm_drv}, |
| }; |
| |
| struct pi3usb9281_config pi3usb9281_chips[] = { |
| { |
| .i2c_port = I2C_PORT_PERICOM, |
| .mux_lock = NULL, |
| }, |
| }; |
| BUILD_ASSERT(ARRAY_SIZE(pi3usb9281_chips) == |
| CONFIG_USB_SWITCH_PI3USB9281_CHIP_COUNT); |
| |
| /* |
| * 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[] = { |
| #ifdef CONFIG_TEMP_SENSOR_TMP432 |
| {"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}, |
| #endif |
| {"Battery", TEMP_SENSOR_TYPE_BATTERY, charge_get_battery_temp, |
| 0, 4}, |
| }; |
| BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT); |
| |
| struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_COUNT] = { |
| { |
| .port_addr = 0, /* port idx */ |
| .driver = &anx7688_usb_mux_driver, |
| }, |
| }; |
| |
| /** |
| * Reset PD MCU |
| * ANX7688 needs a reset pulse of 50ms after power enable. |
| */ |
| void deferred_reset_pd_mcu(void) |
| { |
| uint8_t state = gpio_get_level(GPIO_USB_C0_PWR_EN_L) | |
| (gpio_get_level(GPIO_USB_C0_RST) << 1); |
| |
| CPRINTS("%s %d", __func__, state); |
| switch (state) { |
| case 0: |
| /* |
| * PWR_EN_L low, RST low |
| * start reset sequence by turning off power enable |
| * and wait for 1ms. |
| */ |
| gpio_set_level(GPIO_USB_C0_PWR_EN_L, 1); |
| hook_call_deferred(&deferred_reset_pd_mcu_data, 1*MSEC); |
| break; |
| case 1: |
| /* |
| * PWR_EN_L high, RST low |
| * pull PD reset pin and wait for another 1ms |
| */ |
| gpio_set_level(GPIO_USB_C0_RST, 1); |
| hook_call_deferred(&deferred_reset_pd_mcu_data, 1*MSEC); |
| /* on PD reset, trigger PD task to reset state */ |
| task_set_event(TASK_ID_PD_C0, PD_EVENT_TCPC_RESET, 0); |
| break; |
| case 3: |
| /* |
| * PWR_EN_L high, RST high |
| * enable power and wait for 10ms then pull RESET_N |
| */ |
| gpio_set_level(GPIO_USB_C0_PWR_EN_L, 0); |
| hook_call_deferred(&deferred_reset_pd_mcu_data, 10*MSEC); |
| break; |
| case 2: |
| /* |
| * PWR_EN_L low, RST high |
| * leave reset state |
| */ |
| gpio_set_level(GPIO_USB_C0_RST, 0); |
| break; |
| } |
| } |
| |
| static void board_power_on_pd_mcu(void) |
| { |
| /* check if power is already on */ |
| if (!gpio_get_level(GPIO_USB_C0_PWR_EN_L)) |
| return; |
| |
| gpio_set_level(GPIO_USB_C0_EXTPWR_EN, 1); |
| hook_call_deferred(&deferred_reset_pd_mcu_data, 1*MSEC); |
| } |
| |
| void board_reset_pd_mcu(void) |
| { |
| /* enable port controller's cable detection before reset */ |
| anx7688_enable_cable_detection(0); |
| |
| /* wait for 10ms, then start port controller's reset sequence */ |
| hook_call_deferred(&deferred_reset_pd_mcu_data, 10*MSEC); |
| } |
| |
| int command_pd_reset(int argc, char **argv) |
| { |
| board_reset_pd_mcu(); |
| return EC_SUCCESS; |
| } |
| DECLARE_CONSOLE_COMMAND(resetpd, command_pd_reset, |
| "", |
| "Reset PD IC"); |
| |
| /** |
| * There is a level shift for AC_OK & LID_OPEN signal between AP & EC, |
| * disable it (drive high) when AP is off, otherwise enable it (drive low). |
| */ |
| static void board_extpower_buffer_to_soc(void) |
| { |
| /* Drive high when AP is off (G3), else drive low */ |
| gpio_set_level(GPIO_LEVEL_SHIFT_EN_L, |
| chipset_in_state(CHIPSET_STATE_HARD_OFF) ? 1 : 0); |
| } |
| |
| /* Initialize board. */ |
| static void board_init(void) |
| { |
| /* Enable Level shift of AC_OK & LID_OPEN signals */ |
| board_extpower_buffer_to_soc(); |
| /* Enable rev1 testing GPIOs */ |
| gpio_set_level(GPIO_SYSTEM_POWER_H, 1); |
| /* Enable PD MCU interrupt */ |
| gpio_enable_interrupt(GPIO_PD_MCU_INT); |
| |
| /* Enable BC 1.2 */ |
| gpio_enable_interrupt(GPIO_BC12_CABLE_INT); |
| |
| /* Check if typeC is already connected, and do 7688 power on flow */ |
| board_power_on_pd_mcu(); |
| |
| /* Update VBUS supplier */ |
| usb_charger_vbus_change(0, !gpio_get_level(GPIO_USB_C0_VBUS_WAKE_L)); |
| |
| /* Remap SPI2 to DMA channels 6 and 7 */ |
| REG32(STM32_DMA1_BASE + 0xa8) |= (1 << 20) | (1 << 21) | |
| (1 << 24) | (1 << 25); |
| } |
| DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT); |
| |
| /** |
| * Set active charge port -- only one port can active at a time. |
| * |
| * @param charge_port Charge port to enable. |
| * |
| * Return EC_SUCCESS if charge port is accepted and made active. |
| * EC_ERROR_* otherwise. |
| */ |
| int board_set_active_charge_port(int charge_port) |
| { |
| /* charge port is a physical port */ |
| int is_real_port = (charge_port >= 0 && |
| charge_port < CONFIG_USB_PD_PORT_COUNT); |
| /* check if we are source VBUS on the port */ |
| int source = gpio_get_level(GPIO_USB_C0_5V_EN); |
| static int initialized; |
| |
| /* |
| * Reject charge port disable if our battery is critical and we |
| * have yet to initialize a charge port - continue to charge using |
| * charger ROM / POR settings. |
| */ |
| if (!initialized && |
| charge_port == CHARGE_PORT_NONE && |
| charge_get_percent() < 2) |
| return -1; |
| |
| if (is_real_port && source) { |
| CPRINTF("Skip enable p%d", charge_port); |
| return EC_ERROR_INVAL; |
| } |
| |
| CPRINTF("New chg p%d", charge_port); |
| |
| if (charge_port == CHARGE_PORT_NONE) { |
| /* Disable charging port */ |
| gpio_set_level(GPIO_USB_C0_CHARGE_L, 1); |
| } else { |
| /* Enable charging port */ |
| gpio_set_level(GPIO_USB_C0_CHARGE_L, 0); |
| } |
| |
| initialized = 1; |
| return EC_SUCCESS; |
| } |
| |
| /** |
| * Set the charge limit based upon desired maximum. |
| * |
| * @param port Port number. |
| * @param supplier Charge supplier type. |
| * @param charge_ma Desired charge limit (mA). |
| * @param charge_mv Negotiated charge voltage (mV). |
| */ |
| void board_set_charge_limit(int port, int supplier, int charge_ma, |
| int max_ma, int charge_mv) |
| { |
| /* Limit input current 95% ratio on rowan board for safety */ |
| charge_ma = (charge_ma * 95) / 100; |
| charge_set_input_current_limit(MAX(charge_ma, |
| CONFIG_CHARGER_INPUT_CURRENT), charge_mv); |
| pd_send_host_event(PD_EVENT_POWER_CHANGE); |
| } |
| |
| /** |
| * Return whether ramping is allowed for given supplier |
| */ |
| int board_is_ramp_allowed(int supplier) |
| { |
| /* Don't allow ramping in RO when write protected */ |
| if (system_get_image_copy() != SYSTEM_IMAGE_RW |
| && system_is_locked()) |
| return 0; |
| else |
| return supplier == CHARGE_SUPPLIER_BC12_DCP || |
| supplier == CHARGE_SUPPLIER_BC12_SDP || |
| supplier == CHARGE_SUPPLIER_BC12_CDP || |
| supplier == CHARGE_SUPPLIER_PROPRIETARY; |
| } |
| |
| /** |
| * Return the maximum allowed input current |
| */ |
| int board_get_ramp_current_limit(int supplier, int sup_curr) |
| { |
| switch (supplier) { |
| case CHARGE_SUPPLIER_BC12_DCP: |
| return 2000; |
| case CHARGE_SUPPLIER_BC12_SDP: |
| return 1000; |
| case CHARGE_SUPPLIER_BC12_CDP: |
| case CHARGE_SUPPLIER_PROPRIETARY: |
| return sup_curr; |
| default: |
| return 500; |
| } |
| } |
| |
| /** |
| * Set AP reset. |
| * AP_RESET_L (PC3, CPU_WARM_RESET_L) is connected to PMIC SYSRSTB |
| */ |
| void board_set_ap_reset(int asserted) |
| { |
| /* Signal is active-low */ |
| CPRINTS("ap warm reset(%d)", asserted); |
| gpio_set_level(GPIO_AP_RESET_L, !asserted); |
| } |
| |
| #ifdef CONFIG_TEMP_SENSOR_TMP432 |
| static void tmp432_set_power_deferred(void) |
| { |
| /* Shut tmp432 down if not in S0 && no external power */ |
| if (!extpower_is_present() && !chipset_in_state(CHIPSET_STATE_ON)) { |
| if (EC_SUCCESS != tmp432_set_power(TMP432_POWER_OFF)) |
| CPRINTS("ERROR: Can't shutdown TMP432."); |
| return; |
| } |
| |
| /* else, turn it on. */ |
| if (EC_SUCCESS != tmp432_set_power(TMP432_POWER_ON)) |
| CPRINTS("ERROR: Can't turn on TMP432."); |
| } |
| DECLARE_DEFERRED(tmp432_set_power_deferred); |
| #endif |
| |
| /** |
| * Hook of AC change. turn on/off tmp432 depends on AP & AC status. |
| */ |
| static void board_extpower(void) |
| { |
| board_extpower_buffer_to_soc(); |
| #ifdef CONFIG_TEMP_SENSOR_TMP432 |
| hook_call_deferred(&tmp432_set_power_deferred_data, 0); |
| #endif |
| } |
| DECLARE_HOOK(HOOK_AC_CHANGE, board_extpower, HOOK_PRIO_DEFAULT); |
| |
| /* Called on AP S5 -> S3 transition, and before HOOK_CHIPSET_STARTUP */ |
| static void board_chipset_pre_init(void) |
| { |
| /* Enable level shift of AC_OK when power on */ |
| board_extpower_buffer_to_soc(); |
| |
| /* Enable SPI for KX022 */ |
| gpio_config_module(MODULE_SPI_MASTER, 1); |
| |
| /* Set all four SPI pins to high speed */ |
| /* pins B12/B13/B14/B15 */ |
| STM32_GPIO_OSPEEDR(GPIO_B) |= 0xff000000; |
| |
| /* Enable clocks to SPI2 module */ |
| STM32_RCC_APB1ENR |= STM32_RCC_PB1_SPI2; |
| |
| /* Reset SPI2 */ |
| STM32_RCC_APB1RSTR |= STM32_RCC_PB1_SPI2; |
| STM32_RCC_APB1RSTR &= ~STM32_RCC_PB1_SPI2; |
| |
| spi_enable(CONFIG_SPI_ACCEL_PORT, 1); |
| } |
| DECLARE_HOOK(HOOK_CHIPSET_PRE_INIT, board_chipset_pre_init, HOOK_PRIO_DEFAULT); |
| |
| /* Called on AP S3 -> S5 transition */ |
| static void board_chipset_shutdown(void) |
| { |
| /* Disable level shift to SoC when shutting down */ |
| gpio_set_level(GPIO_LEVEL_SHIFT_EN_L, 1); |
| |
| spi_enable(CONFIG_SPI_ACCEL_PORT, 0); |
| |
| /* Disable clocks to SPI2 module */ |
| STM32_RCC_APB1ENR &= ~STM32_RCC_PB1_SPI2; |
| |
| gpio_config_module(MODULE_SPI_MASTER, 0); |
| |
| /* |
| * Calling gpio_config_module sets disabled alternate function pins to |
| * GPIO_INPUT. But to prevent leakage we want to set GPIO_OUT_LOW |
| */ |
| gpio_set_flags_by_mask(GPIO_B, 0xf000, GPIO_OUT_LOW); |
| } |
| DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, board_chipset_shutdown, HOOK_PRIO_DEFAULT); |
| |
| /* Called on AP S3 -> S0 transition */ |
| static void board_chipset_resume(void) |
| { |
| #ifdef CONFIG_TEMP_SENSOR_TMP432 |
| hook_call_deferred(&tmp432_set_power_deferred_data, 0); |
| #endif |
| } |
| DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT); |
| |
| /* Called on AP S0 -> S3 transition */ |
| static void board_chipset_suspend(void) |
| { |
| #ifdef CONFIG_TEMP_SENSOR_TMP432 |
| hook_call_deferred(&tmp432_set_power_deferred_data, 0); |
| #endif |
| } |
| DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT); |
| |
| /* ALS instances. Must be in same order as enum als_id. */ |
| struct als_t als[] = { |
| {"ISL", isl29035_init, isl29035_read_lux, 5}, |
| }; |
| BUILD_ASSERT(ARRAY_SIZE(als) == ALS_COUNT); |
| |
| #ifdef HAS_TASK_MOTIONSENSE |
| /* Motion sensors */ |
| /* Mutexes */ |
| static struct mutex g_kx022_mutex[2]; |
| |
| /* Matrix to rotate accelerometer into standard reference frame */ |
| const matrix_3x3_t base_standard_ref = { |
| { FLOAT_TO_FP(-1), 0, 0}, |
| { 0, FLOAT_TO_FP(1), 0}, |
| { 0, 0, FLOAT_TO_FP(-1)} |
| }; |
| |
| const matrix_3x3_t lid_standard_ref = { |
| { FLOAT_TO_FP(1), 0, 0}, |
| { 0, FLOAT_TO_FP(-1), 0}, |
| { 0, 0, FLOAT_TO_FP(-1)} |
| }; |
| |
| /* KX022 private data */ |
| struct kionix_accel_data g_kx022_data[2]; |
| |
| struct motion_sensor_t motion_sensors[] = { |
| {.name = "Base Accel", |
| .active_mask = SENSOR_ACTIVE_S0, |
| .chip = MOTIONSENSE_CHIP_KX022, |
| .type = MOTIONSENSE_TYPE_ACCEL, |
| .location = MOTIONSENSE_LOC_BASE, |
| .drv = &kionix_accel_drv, |
| .mutex = &g_kx022_mutex[0], |
| .drv_data = &g_kx022_data[0], |
| .addr = 1, /* SPI, device ID 0 */ |
| .rot_standard_ref = &base_standard_ref, |
| .default_range = 2, /* g, enough for laptop. */ |
| .config = { |
| /* AP: by default use EC settings */ |
| [SENSOR_CONFIG_AP] = { |
| .odr = 10000 | ROUND_UP_FLAG, |
| .ec_rate = 100 * MSEC, |
| }, |
| /* EC use accel for angle detection */ |
| [SENSOR_CONFIG_EC_S0] = { |
| .odr = 10000 | ROUND_UP_FLAG, |
| .ec_rate = 100 * MSEC, |
| }, |
| /* unused */ |
| [SENSOR_CONFIG_EC_S3] = { |
| .odr = 0, |
| .ec_rate = 0, |
| }, |
| [SENSOR_CONFIG_EC_S5] = { |
| .odr = 0, |
| .ec_rate = 0, |
| }, |
| }, |
| }, |
| |
| {.name = "Lid Accel", |
| .active_mask = SENSOR_ACTIVE_S0, |
| .chip = MOTIONSENSE_CHIP_KX022, |
| .type = MOTIONSENSE_TYPE_ACCEL, |
| .location = MOTIONSENSE_LOC_LID, |
| .drv = &kionix_accel_drv, |
| .mutex = &g_kx022_mutex[1], |
| .drv_data = &g_kx022_data[1], |
| .addr = 3, /* SPI, device ID 1 */ |
| .rot_standard_ref = &lid_standard_ref, |
| .default_range = 2, /* g, enough for laptop. */ |
| .config = { |
| /* AP: by default use EC settings */ |
| [SENSOR_CONFIG_AP] = { |
| .odr = 10000 | ROUND_UP_FLAG, |
| .ec_rate = 100 * MSEC, |
| }, |
| /* EC use accel for angle detection */ |
| [SENSOR_CONFIG_EC_S0] = { |
| .odr = 10000 | ROUND_UP_FLAG, |
| .ec_rate = 100 * MSEC, |
| }, |
| /* unused */ |
| [SENSOR_CONFIG_EC_S3] = { |
| .odr = 0, |
| .ec_rate = 0, |
| }, |
| [SENSOR_CONFIG_EC_S5] = { |
| .odr = 0, |
| .ec_rate = 0, |
| }, |
| }, |
| }, |
| }; |
| const unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors); |
| |
| void lid_angle_peripheral_enable(int enable) |
| { |
| keyboard_scan_enable(enable, KB_SCAN_DISABLE_LID_ANGLE); |
| } |
| #endif /* defined(HAS_TASK_MOTIONSENSE) */ |
| |
| uint16_t tcpc_get_alert_status(void) |
| { |
| return gpio_get_level(GPIO_PD_MCU_INT) ? PD_STATUS_TCPC_ALERT_0 : 0; |
| } |
| |