/* 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. */ /* Reef board-specific configuration */ #include "adc.h" #include "adc_chip.h" #include "als.h" #include "button.h" #include "charge_manager.h" #include "charge_ramp.h" #include "charge_state.h" #include "charger.h" #include "chipset.h" #include "console.h" #include "driver/als_opt3001.h" #include "driver/accel_kionix.h" #include "driver/accel_kx022.h" #include "driver/accelgyro_bmi_common.h" #include "driver/baro_bmp280.h" #include "driver/charger/bd9995x.h" #include "driver/tcpm/anx74xx.h" #include "driver/tcpm/ps8xxx.h" #include "driver/tcpm/tcpci.h" #include "driver/tcpm/tcpm.h" #include "extpower.h" #include "gpio.h" #include "hooks.h" #include "host_command.h" #include "i2c.h" #include "keyboard_scan.h" #include "lid_angle.h" #include "lid_switch.h" #include "math_util.h" #include "motion_sense.h" #include "motion_lid.h" #include "power.h" #include "power_button.h" #include "pwm.h" #include "pwm_chip.h" #include "lpc_chip.h" #include "spi.h" #include "spi_chip.h" #include "switch.h" #include "system.h" #include "tablet_mode.h" #include "task.h" #include "temp_sensor.h" #include "tfdp_chip.h" #include "thermistor.h" #include "timer.h" #include "uart.h" #include "usb_charge.h" #include "usb_mux.h" #include "usb_pd.h" #include "usb_pd_tcpm.h" #include "util.h" #define CPUTS(outstr) cputs(CC_USBCHARGE, outstr) #define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args) #define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args) #define IN_ALL_SYS_PG POWER_SIGNAL_MASK(X86_ALL_SYS_PG) #define IN_PGOOD_PP3300 POWER_SIGNAL_MASK(X86_PGOOD_PP3300) #define IN_PGOOD_PP5000 POWER_SIGNAL_MASK(X86_PGOOD_PP5000) #define USB_PD_PORT_ANX74XX 0 #define USB_PD_PORT_PS8751 1 #ifdef CONFIG_BOARD_PRE_INIT /* * reefmchp - requires changing * VTR1 pin domain = 3.3V * VTR2 pin domain = 1.8V * VTR3 pin domain = 3.3V */ void board_config_pre_init(void) { MCHP_EC_GPIO_BANK_PWR = MCHP_EC_GPIO_BANK_PWR_VTR2_18; #ifdef CONFIG_LOW_POWER_IDLE /* DEBUG - GPIO_0060 becomes 48MHZ_OUT * MEC1701 interposer J47-7 */ gpio_config_module(MODULE_CHIPSET, 1); #endif } #endif /* * NOTES: The PD GPIO's are armed for falling edge. * There is a potential race condition in this routine. * ISR calls this routine and it reads state of GPIO pin. * If GPIO is still asserted low, this routine will do nothing. * If this routine samples GPIO after it returns high then it * will wake the PDCMD task. */ 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); } #ifdef CONFIG_USB_PD_TCPC_LOW_POWER static void anx74xx_cable_det_handler(void) { int cable_det = gpio_get_level(GPIO_USB_C0_CABLE_DET); int reset_n = gpio_get_level(GPIO_USB_C0_PD_RST_L); /* * A cable_det low->high transition was detected. If following the * debounce time, cable_det is high, and reset_n is low, then ANX3429 is * currently in standby mode and needs to be woken up. Set the * TCPC_RESET event which will bring the ANX3429 out of standby * mode. Setting this event is gated on reset_n being low because the * ANX3429 will always set cable_det when transitioning to normal mode * and if in normal mode, then there is no need to trigger a tcpc reset. */ if (cable_det && !reset_n) task_set_event(TASK_ID_PD_C0, PD_EVENT_TCPC_RESET, 0); } DECLARE_DEFERRED(anx74xx_cable_det_handler); /* from firmware-reef-9042.B */ DECLARE_HOOK(HOOK_CHIPSET_RESUME, anx74xx_cable_det_handler, HOOK_PRIO_LAST); void anx74xx_cable_det_interrupt(enum gpio_signal signal) { /* debounce for 2 msec */ hook_call_deferred(&anx74xx_cable_det_handler_data, (2 * MSEC)); } #endif /* * enable_input_devices() is called by the tablet_mode ISR, but changes the * state of GPIOs, so its definition must reside after including gpio_list. * Use DECLARE_DEFERRED to generate enable_input_devices_data. */ static void enable_input_devices(void); DECLARE_DEFERRED(enable_input_devices); #define LID_DEBOUNCE_US (30 * MSEC) /* Debounce time for lid switch */ void tablet_mode_interrupt(enum gpio_signal signal) { hook_call_deferred(&enable_input_devices_data, LID_DEBOUNCE_US); } #include "gpio_list.h" /* SPI devices */ const struct spi_device_t spi_devices[] = { { QMSPI0_PORT, 4, GPIO_QMSPI_CS0}, #if defined(CONFIG_SPI_ACCEL_PORT) { GPSPI0_PORT, 2, GPIO_SPI0_CS0 }, #endif }; const unsigned int spi_devices_used = ARRAY_SIZE(spi_devices); /* ADC channels */ /* chip/mchp defined adc_t * name, factor_mul, factor_div, shift, channel * Signals routed through interposer to MEC17xx ADC channels. */ const struct adc_t adc_channels[] = { /* Vref = 3.000V, 10-bit unsigned reading */ [ADC_TEMP_SENSOR_CHARGER] = { "CHARGER", 3000, 1024, 0, 0 }, [ADC_TEMP_SENSOR_AMB] = { "AMBIENT", 3000, 1024, 0, 1 }, [ADC_BOARD_ID] = { "BRD_ID", 3000, 1024, 0, 2 }, }; BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT); /* PWM channels. Must be in the exactly same order as in enum pwm_channel. */ #ifdef CONFIG_PWM const struct pwm_t pwm_channels[] = { /* channel, flags */ [PWM_CH_LED_GREEN] = { 4, PWM_CONFIG_DSLEEP }, [PWM_CH_LED_RED] = { 5, PWM_CONFIG_DSLEEP }, }; BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT); #endif /* #ifdef CONFIG_PWM */ /* * Using Ports 3, 6, 7 from board.h * Using Ports 0, 2 from board.c * Due to added RC of interposer board temporarily reduce * 400 to 100 kHz. */ const struct i2c_port_t i2c_ports[] = { {"tcpc0", MCHP_I2C_PORT0, 400, GPIO_EC_I2C_USB_C0_PD_SCL, GPIO_EC_I2C_USB_C0_PD_SDA}, {"tcpc1", MCHP_I2C_PORT2, 400, GPIO_EC_I2C_USB_C1_PD_SCL, GPIO_EC_I2C_USB_C1_PD_SDA}, {"accelgyro", I2C_PORT_GYRO, 400, GPIO_EC_I2C_GYRO_SCL, GPIO_EC_I2C_GYRO_SDA}, {"sensors", MCHP_I2C_PORT7, 400, GPIO_EC_I2C_SENSOR_SCL, GPIO_EC_I2C_SENSOR_SDA}, {"batt", MCHP_I2C_PORT3, 100, GPIO_EC_I2C_POWER_SCL, GPIO_EC_I2C_POWER_SDA}, }; const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports); /* * Map ports to controller. * Ports may map to the same controller. * Both USB PD ports are mapped to CTRL0. */ const uint16_t i2c_port_to_ctrl[I2C_PORT_COUNT] = { (MCHP_I2C_CTRL0 << 8) + MCHP_I2C_PORT0, (MCHP_I2C_CTRL0 << 8) + MCHP_I2C_PORT2, (MCHP_I2C_CTRL1 << 8) + I2C_PORT_GYRO, (MCHP_I2C_CTRL2 << 8) + MCHP_I2C_PORT3, (MCHP_I2C_CTRL3 << 8) + MCHP_I2C_PORT7, }; /* * Used by chip level I2C controller initialization. * Board level can specify two unused I2C addresses * for each controller. Current chip level disables * controller response to address 0(general call). */ const uint32_t i2c_ctrl_slave_addrs[I2C_CONTROLLER_COUNT] = { 0, 0, 0, 0, }; const struct charger_config_t chg_chips[] = { { .i2c_port = I2C_PORT_CHARGER, .i2c_addr_flags = BD9995X_ADDR_FLAGS, .drv = &bd9995x_drv, }, }; const unsigned int chg_cnt = ARRAY_SIZE(chg_chips); /* Return the two slave addresses the specified * controller will respond to when controller * is acting as a slave. * b[6:0] = b[7:1] of I2C address 1 * b[14:8] = b[7:1] of I2C address 2 * When not using I2C controllers as slaves we can use * the same value for all controllers. The address should * not be 0x00 as this is the general call address. */ uint16_t board_i2c_slave_addrs(int controller) { int i; for (i = 0; i < I2C_CONTROLLER_COUNT; i++) if ((i2c_ctrl_slave_addrs[i] & 0xffff) == controller) return (i2c_ctrl_slave_addrs[i] >> 16); return 0; /* general call address */ } /* * default to I2C0 because callers may not check * return value if we returned an error code. */ int board_i2c_p2c(int port) { int i; for (i = 0; i < I2C_PORT_COUNT; i++) if ((i2c_port_to_ctrl[i] & 0xFF) == port) return (int)(i2c_port_to_ctrl[i] >> 8); return -1; } #ifdef CONFIG_CMD_I2C_STRESS_TEST struct i2c_stress_test i2c_stress_tests[] = { #ifdef CONFIG_CMD_I2C_STRESS_TEST_TCPC { .port = MCHP_I2C_PORT0, .addr_flags = 0x28, .i2c_test = &anx74xx_i2c_stress_test_dev, }, #endif #ifdef CONFIG_CMD_I2C_STRESS_TEST_TCPC { .port = MCHP_I2C_PORT2, .addr_flags = 0x0B, .i2c_test = &ps8xxx_i2c_stress_test_dev, }, #endif #ifdef CONFIG_CMD_I2C_STRESS_TEST_ACCEL { .port = I2C_PORT_GYRO, .addr_flags = BMI160_ADDR0_FLAGS, .i2c_test = &bmi160_i2c_stress_test_dev, }, #endif #ifdef CONFIG_CMD_I2C_STRESS_TEST_ACCEL { .port = I2C_PORT_BARO, .addr_flags = BMP280_I2C_ADDRESS1_FLAGS, .i2c_test = &bmp280_i2c_stress_test_dev, }, { .port = I2C_PORT_LID_ACCEL, .addr_flags = KX022_ADDR1_FLAGS, .i2c_test = &kionix_i2c_stress_test_dev, }, #endif #ifdef CONFIG_CMD_I2C_STRESS_TEST_ALS { .port = I2C_PORT_ALS, .addr_flags = OPT3001_I2C_ADDR1_FLAGS, .i2c_test = &opt3001_i2c_stress_test_dev, }, #endif /* MCHP_I2C_PORT3 */ #ifdef CONFIG_CMD_I2C_STRESS_TEST_BATTERY { .i2c_test = &battery_i2c_stress_test_dev, }, #endif /* MCHP_I2C_PORT3 */ #ifdef CONFIG_CMD_I2C_STRESS_TEST_CHARGER { .i2c_test = &bd9995x_i2c_stress_test_dev, }, #endif }; const int i2c_test_dev_used = ARRAY_SIZE(i2c_stress_tests); #endif /* CONFIG_CMD_I2C_STRESS_TEST */ const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = { [USB_PD_PORT_ANX74XX] = { .bus_type = EC_BUS_TYPE_I2C, .i2c_info = { .port = MCHP_I2C_PORT0, .addr_flags = 0x28, }, .drv = &anx74xx_tcpm_drv, }, [USB_PD_PORT_PS8751] = { .bus_type = EC_BUS_TYPE_I2C, .i2c_info = { .port = MCHP_I2C_PORT2, .addr_flags = 0x0B, }, .drv = &ps8xxx_tcpm_drv, }, }; 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_ODL)) status |= PD_STATUS_TCPC_ALERT_1; } return status; } const enum gpio_signal hibernate_wake_pins[] = { GPIO_AC_PRESENT, GPIO_LID_OPEN, GPIO_POWER_BUTTON_L, }; const int hibernate_wake_pins_used = ARRAY_SIZE(hibernate_wake_pins); /* * PS8751 TCPM DRP low power idle behavour is causing I2C errors. * Upon receiving DRP low power idle command, PS8751 holds SCL and * SDA low for ~480us. It simultaneously releases both pins which is * defined as a bus error condition by I2C spec. No ACK received. * TCPCI spec. states waking any TCPM requires sending any dummy * I2C command which the TCPM will NACK. The I2C master MUST wait * a minimum of 5 ms after the NACK before sending another I2C * command. We observe the PD task and TCPCI state machines do not * follow the TCPCI spec. Sometimes this routine is called to wake * the PS8751 after it has been put into low power idle and sometimes * the PD/TCPCI state machine doesn't call this routine and tries * communicating with PS8751. This results in lots of I2C retries and * results taking up to 10ms before I2C communication with PS8751 * is stable. Don't know how to fix this. */ static int ps8751_tune_mux(const struct usb_mux *me) { int rv; /* 0x98 sets lower EQ of DP port (4.5db) */ rv = mux_write(me, PS8XXX_REG_MUX_DP_EQ_CONFIGURATION, 0x98); /* TCPCI spec. delay msleep(6); */ return rv; } /* * USB_PD_PORT_ANX74XX and USB_PD_PORT_PS8751 are zero based indices into * tcpc_config array. The tcpc_config array contains the actual EC I2C * port, device slave address, and a function pointer into the driver code. */ const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = { [USB_PD_PORT_ANX74XX] = { .usb_port = USB_PD_PORT_ANX74XX, .driver = &anx74xx_tcpm_usb_mux_driver, .hpd_update = &anx74xx_tcpc_update_hpd_status, }, [USB_PD_PORT_PS8751] = { .usb_port = USB_PD_PORT_PS8751, .driver = &tcpci_tcpm_usb_mux_driver, .hpd_update = &ps8xxx_tcpc_update_hpd_status, .board_init = &ps8751_tune_mux, } }; /* MCHP * New, not in firmware-reef-9042.B */ const int usb_port_enable[CONFIG_USB_PORT_POWER_SMART_PORT_COUNT] = { GPIO_USB1_ENABLE, }; /** * Power on (or off) a single TCPC. * minimum on/off delays are included. * * @param port Port number of TCPC. * @param mode 0: power off, 1: power on. */ void board_set_tcpc_power_mode(int port, int mode) { if (port != USB_PD_PORT_ANX74XX) return; switch (mode) { case ANX74XX_NORMAL_MODE: gpio_set_level(GPIO_EN_USB_TCPC_PWR, 1); msleep(ANX74XX_PWR_H_RST_H_DELAY_MS); gpio_set_level(GPIO_USB_C0_PD_RST_L, 1); break; case ANX74XX_STANDBY_MODE: gpio_set_level(GPIO_USB_C0_PD_RST_L, 0); msleep(ANX74XX_RST_L_PWR_L_DELAY_MS); gpio_set_level(GPIO_EN_USB_TCPC_PWR, 0); msleep(ANX74XX_PWR_L_PWR_H_DELAY_MS); break; default: break; } } /** * Reset all system PD/TCPC MCUs -- currently only called from * handle_pending_reboot() in common/power.c just before hard * resetting the system. This logic is likely not needed as the * PP3300_A rail should be dropped on EC reset. */ void board_reset_pd_mcu(void) { /* Assert reset to TCPC1 */ gpio_set_level(GPIO_USB_C1_PD_RST_ODL, 0); /* Assert reset to TCPC0 (anx3429) */ gpio_set_level(GPIO_USB_C0_PD_RST_L, 0); /* TCPC1 (ps8751) requires 1ms reset down assertion */ msleep(MAX(1, ANX74XX_RST_L_PWR_L_DELAY_MS)); /* Deassert reset to TCPC1 */ gpio_set_level(GPIO_USB_C1_PD_RST_ODL, 1); /* Disable TCPC0 power */ gpio_set_level(GPIO_EN_USB_TCPC_PWR, 0); /* * anx3429 requires 10ms reset/power down assertion */ msleep(ANX74XX_PWR_L_PWR_H_DELAY_MS); board_set_tcpc_power_mode(USB_PD_PORT_ANX74XX, 1); } void board_tcpc_init(void) { int reg; /* Only reset TCPC if not sysjump */ if (!system_jumped_to_this_image()) board_reset_pd_mcu(); /* * TODO: Remove when Reef is updated with PS8751 A3. * * Force PS8751 A2 to wake from low power mode. * If PS8751 remains in low power mode after sysjump, * TCPM_INIT will fail due to not able to access PS8751. * * NOTE: PS8751 A3 will wake on any I2C access. */ reg = 0; /* TODO MCHP: * PS8751 is at I2C address 0x16. Original reef using * address 0x10. Is this another attempt at waking PS8751 * from DRP low power idle mode? */ i2c_read8(MCHP_I2C_PORT2, 0x08, 0xA0, ®); /* Enable TCPC0 interrupt */ gpio_enable_interrupt(GPIO_USB_C0_PD_INT_ODL); /* Enable TCPC1 interrupt */ gpio_enable_interrupt(GPIO_USB_C1_PD_INT_ODL); #ifdef CONFIG_USB_PD_TCPC_LOW_POWER /* Enable CABLE_DET interrupt for ANX3429 wake from standby */ gpio_enable_interrupt(GPIO_USB_C0_CABLE_DET); #endif /* * 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); /* * Data derived from Seinhart-Hart equation in a resistor divider circuit with * Vdd=3300mV, R = 13.7Kohm, and Murata NCP15WB-series thermistor (B = 4050, * T0 = 298.15, nominal resistance (R0) = 47Kohm). */ #define CHARGER_THERMISTOR_SCALING_FACTOR 13 static const struct thermistor_data_pair charger_thermistor_data[] = { { 3044 / CHARGER_THERMISTOR_SCALING_FACTOR, 0 }, { 2890 / CHARGER_THERMISTOR_SCALING_FACTOR, 10 }, { 2680 / CHARGER_THERMISTOR_SCALING_FACTOR, 20 }, { 2418 / CHARGER_THERMISTOR_SCALING_FACTOR, 30 }, { 2117 / CHARGER_THERMISTOR_SCALING_FACTOR, 40 }, { 1800 / CHARGER_THERMISTOR_SCALING_FACTOR, 50 }, { 1490 / CHARGER_THERMISTOR_SCALING_FACTOR, 60 }, { 1208 / CHARGER_THERMISTOR_SCALING_FACTOR, 70 }, { 966 / CHARGER_THERMISTOR_SCALING_FACTOR, 80 }, { 860 / CHARGER_THERMISTOR_SCALING_FACTOR, 85 }, { 766 / CHARGER_THERMISTOR_SCALING_FACTOR, 90 }, { 679 / CHARGER_THERMISTOR_SCALING_FACTOR, 95 }, { 603 / CHARGER_THERMISTOR_SCALING_FACTOR, 100 }, }; static const struct thermistor_info charger_thermistor_info = { .scaling_factor = CHARGER_THERMISTOR_SCALING_FACTOR, .num_pairs = ARRAY_SIZE(charger_thermistor_data), .data = charger_thermistor_data, }; int board_get_charger_temp(int idx, int *temp_ptr) { int mv = adc_read_channel(MCHP_ADC_CH(0)); if (mv < 0) return -1; *temp_ptr = thermistor_linear_interpolate(mv, &charger_thermistor_info); *temp_ptr = C_TO_K(*temp_ptr); return 0; } /* * Data derived from Seinhart-Hart equation in a resistor divider circuit with * Vdd=3300mV, R = 51.1Kohm, and Murata NCP15WB-series thermistor (B = 4050, * T0 = 298.15, nominal resistance (R0) = 47Kohm). */ #define AMB_THERMISTOR_SCALING_FACTOR 11 static const struct thermistor_data_pair amb_thermistor_data[] = { { 2512 / AMB_THERMISTOR_SCALING_FACTOR, 0 }, { 2158 / AMB_THERMISTOR_SCALING_FACTOR, 10 }, { 1772 / AMB_THERMISTOR_SCALING_FACTOR, 20 }, { 1398 / AMB_THERMISTOR_SCALING_FACTOR, 30 }, { 1070 / AMB_THERMISTOR_SCALING_FACTOR, 40 }, { 803 / AMB_THERMISTOR_SCALING_FACTOR, 50 }, { 597 / AMB_THERMISTOR_SCALING_FACTOR, 60 }, { 443 / AMB_THERMISTOR_SCALING_FACTOR, 70 }, { 329 / AMB_THERMISTOR_SCALING_FACTOR, 80 }, { 285 / AMB_THERMISTOR_SCALING_FACTOR, 85 }, { 247 / AMB_THERMISTOR_SCALING_FACTOR, 90 }, { 214 / AMB_THERMISTOR_SCALING_FACTOR, 95 }, { 187 / AMB_THERMISTOR_SCALING_FACTOR, 100 }, }; static const struct thermistor_info amb_thermistor_info = { .scaling_factor = AMB_THERMISTOR_SCALING_FACTOR, .num_pairs = ARRAY_SIZE(amb_thermistor_data), .data = amb_thermistor_data, }; int board_get_ambient_temp(int idx, int *temp_ptr) { int mv = adc_read_channel(MCHP_ADC_CH(1)); if (mv < 0) return -1; *temp_ptr = thermistor_linear_interpolate(mv, &amb_thermistor_info); *temp_ptr = C_TO_K(*temp_ptr); return 0; } /* * name, sensor type, read function, * index of sensor passed to read function, * delay from read to taking action */ const struct temp_sensor_t temp_sensors[] = { {"Battery", TEMP_SENSOR_TYPE_BATTERY, charge_get_battery_temp, 0}, {"Ambient", TEMP_SENSOR_TYPE_BOARD, board_get_ambient_temp, 0}, {"Charger", TEMP_SENSOR_TYPE_BOARD, board_get_charger_temp, 1}, }; BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT); /* Called by APL power state machine when transitioning from G3 to S5 */ void chipset_pre_init_callback(void) { /* * No need to re-init PMIC since settings are sticky across sysjump. * However, be sure to check that PMIC is already enabled. If it is * then there's no need to re-sequence the PMIC. */ if (system_jumped_to_this_image() && gpio_get_level(GPIO_PMIC_EN)) return; /* Enable PP5000 before PP3300 due to NFC: chrome-os-partner:50807 */ gpio_set_level(GPIO_EN_PP5000, 1); while (!gpio_get_level(GPIO_PP5000_PG)) ; /* * To prevent SLP glitches, PMIC_EN (V5A_EN) should be enabled * at the same time as PP3300 (chrome-os-partner:51323). */ /* Enable 3.3V rail */ gpio_set_level(GPIO_EN_PP3300, 1); while (!gpio_get_level(GPIO_PP3300_PG)) ; /* Enable PMIC */ gpio_set_level(GPIO_PMIC_EN, 1); } static void board_set_tablet_mode(void) { tablet_set_mode(!gpio_get_level(GPIO_TABLET_MODE_L)); } /* Initialize board. */ static void board_init(void) { /* Ensure tablet mode is initialized according to the hardware state * so that the cached state reflects reality. */ board_set_tablet_mode(); gpio_enable_interrupt(GPIO_TABLET_MODE_L); /* Enable charger interrupts */ gpio_enable_interrupt(GPIO_CHARGER_INT_L); /* Enable Gyro interrupts */ gpio_enable_interrupt(GPIO_BASE_SIXAXIS_INT_L); } /* PP3300 needs to be enabled before TCPC init hooks */ DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_FIRST); /* * MCHP - new version of this routine. * firmware-reef-9042.B must do port lookup here * before calling bd9995x_is_vbus_provided */ int pd_snk_is_vbus_provided(int port) { if (port != 0 && port != 1) panic("Invalid charge port\n"); return bd9995x_is_vbus_provided(port); } /** * Set active charge port -- only one port can be active at a time. * * @param charge_port Charge port to enable. * * Returns EC_SUCCESS if charge port is accepted and made active, * EC_ERROR_* otherwise. */ int board_set_active_charge_port(int charge_port) { enum bd9995x_charge_port bd9995x_port; int bd9995x_port_select = 1; switch (charge_port) { case USB_PD_PORT_ANX74XX: case USB_PD_PORT_PS8751: /* Don't charge from a source port */ if (board_vbus_source_enabled(charge_port)) return -1; bd9995x_port = charge_port; break; case CHARGE_PORT_NONE: bd9995x_port_select = 0; bd9995x_port = BD9995X_CHARGE_PORT_BOTH; /* * To avoid inrush current from the external charger, enable * discharge on AC till the new charger is detected and * charge detect delay has passed. */ if (charge_get_percent() > 2) charger_discharge_on_ac(1); break; default: panic("Invalid charge port\n"); break; } CPRINTS("New chg p%d", charge_port); return bd9995x_select_input_port(bd9995x_port, bd9995x_port_select); } /** * 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) { /* Enable charging trigger by BC1.2 detection */ int bc12_enable = (supplier == CHARGE_SUPPLIER_BC12_CDP || supplier == CHARGE_SUPPLIER_BC12_DCP || supplier == CHARGE_SUPPLIER_BC12_SDP || supplier == CHARGE_SUPPLIER_OTHER); if (bd9995x_bc12_enable_charging(port, bc12_enable)) return; charge_ma = (charge_ma * 95) / 100; charge_set_input_current_limit(MAX(charge_ma, CONFIG_CHARGER_INPUT_CURRENT), charge_mv); } /** * Return if board is consuming full amount of input current */ int board_is_consuming_full_charge(void) { int chg_perc = charge_get_percent(); return chg_perc > 2 && chg_perc < 95; } /** * Return if VBUS is sagging too low */ int board_is_vbus_too_low(int port, enum chg_ramp_vbus_state ramp_state) { int voltage; if (charger_get_vbus_voltage(port, &voltage)) voltage = 0; return voltage < BD9995X_BC12_MIN_VOLTAGE; } static void enable_input_devices(void) { /* We need to turn on tablet mode for motion sense */ board_set_tablet_mode(); /* Then, we disable peripherals only when the lid reaches 360 position. * (It's probably already disabled by motion_sense_task.) * We deliberately do not enable peripherals when the lid is leaving * 360 position. Instead, we let motion_sense_task enable it once it * reaches laptop zone (180 or less). */ if (tablet_get_mode()) lid_angle_peripheral_enable(0); } /* Enable or disable input devices, based on chipset state and tablet mode */ #ifndef TEST_BUILD void lid_angle_peripheral_enable(int enable) { /* If the lid is in 360 position, ignore the lid angle, * which might be faulty. Disable keyboard. */ if (tablet_get_mode() || chipset_in_state(CHIPSET_STATE_ANY_OFF)) enable = 0; keyboard_scan_enable(enable, KB_SCAN_DISABLE_LID_ANGLE); } #endif /* Called on AP S5 -> S3 transition */ static void board_chipset_startup(void) { /* Enable USB-A port. */ gpio_set_level(GPIO_USB1_ENABLE, 1); /* Enable Trackpad */ gpio_set_level(GPIO_EN_P3300_TRACKPAD_ODL, 0); hook_call_deferred(&enable_input_devices_data, 0); } DECLARE_HOOK(HOOK_CHIPSET_STARTUP, board_chipset_startup, HOOK_PRIO_DEFAULT); /* Called on AP S3 -> S5 transition */ static void board_chipset_shutdown(void) { /* Disable USB-A port. */ gpio_set_level(GPIO_USB1_ENABLE, 0); /* Disable Trackpad */ gpio_set_level(GPIO_EN_P3300_TRACKPAD_ODL, 1); hook_call_deferred(&enable_input_devices_data, 0); /* FIXME(dhendrix): Drive USB_PD_RST_ODL low to prevent * leakage? (see comment in schematic) */ } DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, board_chipset_shutdown, HOOK_PRIO_DEFAULT); /* FIXME(dhendrix): Add CHIPSET_RESUME and CHIPSET_SUSPEND * hooks to enable/disable sensors? */ /* * MCHP: Next two routines not present in firmware-reef-9042.B */ /* Called on AP S3 -> S0 transition */ static void board_chipset_resume(void) { gpio_set_level(GPIO_ENABLE_BACKLIGHT, 1); } DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT); /* Called on AP S0 -> S3 transition */ static void board_chipset_suspend(void) { gpio_set_level(GPIO_ENABLE_BACKLIGHT, 0); } DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT); /* * FIXME(dhendrix): Weak symbol hack until we can get a better solution for * both Amenia and Reef. */ void chipset_do_shutdown(void) { /* Disable PMIC */ gpio_set_level(GPIO_PMIC_EN, 0); /*Disable 3.3V rail */ gpio_set_level(GPIO_EN_PP3300, 0); while (gpio_get_level(GPIO_PP3300_PG)) ; /*Disable 5V rail */ gpio_set_level(GPIO_EN_PP5000, 0); while (gpio_get_level(GPIO_PP5000_PG)) ; } void board_hibernate_late(void) { int i; const uint32_t hibernate_pins[][2] = { /* Turn off LEDs in hibernate */ {GPIO_BAT_LED_BLUE, GPIO_INPUT | GPIO_PULL_UP}, {GPIO_BAT_LED_AMBER, GPIO_INPUT | GPIO_PULL_UP}, {GPIO_LID_OPEN, GPIO_INT_RISING | GPIO_PULL_DOWN}, /* * BD99956 handles charge input automatically. We'll disable * charge output in hibernate. Charger will assert ACOK_OD * when VBUS or VCC are plugged in. */ {GPIO_USB_C0_5V_EN, GPIO_INPUT | GPIO_PULL_DOWN}, {GPIO_USB_C1_5V_EN, GPIO_INPUT | GPIO_PULL_DOWN}, }; /* Change GPIOs' state in hibernate for better power consumption */ for (i = 0; i < ARRAY_SIZE(hibernate_pins); ++i) gpio_set_flags(hibernate_pins[i][0], hibernate_pins[i][1]); gpio_config_module(MODULE_KEYBOARD_SCAN, 0); /* * Calling gpio_config_module sets disabled alternate function pins to * GPIO_INPUT. But to prevent keypresses causing leakage currents * while hibernating we want to enable GPIO_PULL_UP as well. */ gpio_set_flags_by_mask(0x2, 0x03, GPIO_INPUT | GPIO_PULL_UP); gpio_set_flags_by_mask(0x1, 0x7F, GPIO_INPUT | GPIO_PULL_UP); gpio_set_flags_by_mask(0x0, 0xE0, GPIO_INPUT | GPIO_PULL_UP); /* KBD_KSO2 needs to have a pull-down enabled instead of pull-up */ gpio_set_flags_by_mask(0x1, 0x80, GPIO_INPUT | GPIO_PULL_DOWN); } /* Motion sensors */ /* Mutexes */ static struct mutex g_lid_mutex; static struct mutex g_base_mutex; /* Matrix to rotate accelrator into standard reference frame */ const mat33_fp_t base_standard_ref = { { 0, FLOAT_TO_FP(-1), 0}, { FLOAT_TO_FP(1), 0, 0}, { 0, 0, FLOAT_TO_FP(1)} }; const mat33_fp_t mag_standard_ref = { { FLOAT_TO_FP(-1), 0, 0}, { 0, FLOAT_TO_FP(1), 0}, { 0, 0, FLOAT_TO_FP(-1)} }; /* sensor private data */ static struct kionix_accel_data g_kx022_data; static struct bmi_drv_data_t g_bmi160_data; static struct bmp280_drv_data_t bmp280_drv_data; /* MCHP: struct not present in firmware-reef-9042.B */ static struct opt3001_drv_data_t g_opt3001_data = { .scale = 1, .uscale = 0, .offset = 0, }; /* MCHP: differences in structure initializatio from * firmware-reef-9042.B */ /* FIXME(dhendrix): Copied from Amenia, probably need to tweak for Reef */ struct motion_sensor_t motion_sensors[] = { [LID_ACCEL] = { .name = "Lid Accel", .active_mask = SENSOR_ACTIVE_S0_S3, .chip = MOTIONSENSE_CHIP_KX022, .type = MOTIONSENSE_TYPE_ACCEL, .location = MOTIONSENSE_LOC_LID, .drv = &kionix_accel_drv, .mutex = &g_lid_mutex, .drv_data = &g_kx022_data, .port = I2C_PORT_LID_ACCEL, .i2c_spi_addr_flags = KX022_ADDR1_FLAGS, .rot_standard_ref = NULL, /* Identity matrix. */ .default_range = 2, /* g, to support lid angle calculation. */ .min_frequency = KX022_ACCEL_MIN_FREQ, .max_frequency = KX022_ACCEL_MAX_FREQ, .config = { /* EC use accel for angle detection */ [SENSOR_CONFIG_EC_S0] = { .odr = 10000 | ROUND_UP_FLAG, }, /* Sensor on for lid angle detection */ [SENSOR_CONFIG_EC_S3] = { .odr = 10000 | ROUND_UP_FLAG, }, }, }, [BASE_ACCEL] = { .name = "Base Accel", .active_mask = SENSOR_ACTIVE_S0_S3, .chip = MOTIONSENSE_CHIP_BMI160, .type = MOTIONSENSE_TYPE_ACCEL, .location = MOTIONSENSE_LOC_BASE, .drv = &bmi160_drv, .mutex = &g_base_mutex, .drv_data = &g_bmi160_data, .port = I2C_PORT_GYRO, .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 = BMI_ACCEL_MIN_FREQ, .max_frequency = BMI_ACCEL_MAX_FREQ, .config = { /* EC use accel for angle detection */ [SENSOR_CONFIG_EC_S0] = { .odr = 10000 | ROUND_UP_FLAG, .ec_rate = 100 * MSEC, }, /* Sensor on for lid angle detection */ [SENSOR_CONFIG_EC_S3] = { .odr = 10000 | ROUND_UP_FLAG, .ec_rate = 100 * MSEC, }, }, }, [BASE_GYRO] = { .name = "Base Gyro", .active_mask = SENSOR_ACTIVE_S0, .chip = MOTIONSENSE_CHIP_BMI160, .type = MOTIONSENSE_TYPE_GYRO, .location = MOTIONSENSE_LOC_BASE, .drv = &bmi160_drv, .mutex = &g_base_mutex, .drv_data = &g_bmi160_data, .port = I2C_PORT_GYRO, .i2c_spi_addr_flags = BMI160_ADDR0_FLAGS, .default_range = 1000, /* dps */ .rot_standard_ref = &base_standard_ref, .min_frequency = BMI_GYRO_MIN_FREQ, .max_frequency = BMI_GYRO_MAX_FREQ, }, [BASE_MAG] = { .name = "Base Mag", .active_mask = SENSOR_ACTIVE_S0, .chip = MOTIONSENSE_CHIP_BMI160, .type = MOTIONSENSE_TYPE_MAG, .location = MOTIONSENSE_LOC_BASE, .drv = &bmi160_drv, .mutex = &g_base_mutex, .drv_data = &g_bmi160_data, .port = I2C_PORT_GYRO, .i2c_spi_addr_flags = BMI160_ADDR0_FLAGS, .default_range = BIT(11), /* 16LSB / uT, fixed */ .rot_standard_ref = &mag_standard_ref, .min_frequency = BMM150_MAG_MIN_FREQ, .max_frequency = BMM150_MAG_MAX_FREQ(SPECIAL), }, [BASE_BARO] = { .name = "Base Baro", .active_mask = SENSOR_ACTIVE_S0, .chip = MOTIONSENSE_CHIP_BMP280, .type = MOTIONSENSE_TYPE_BARO, .location = MOTIONSENSE_LOC_BASE, .drv = &bmp280_drv, .drv_data = &bmp280_drv_data, .port = I2C_PORT_BARO, .i2c_spi_addr_flags = BMP280_I2C_ADDRESS1_FLAGS, .default_range = BIT(18), /* 1bit = 4 Pa, 16bit ~= 2600 hPa */ .min_frequency = BMP280_BARO_MIN_FREQ, .max_frequency = BMP280_BARO_MAX_FREQ, }, [LID_ALS] = { .name = "Light", .active_mask = SENSOR_ACTIVE_S0_S3, .chip = MOTIONSENSE_CHIP_OPT3001, .type = MOTIONSENSE_TYPE_LIGHT, .location = MOTIONSENSE_LOC_LID, .drv = &opt3001_drv, .drv_data = &g_opt3001_data, .port = I2C_PORT_ALS, .i2c_spi_addr_flags = OPT3001_I2C_ADDR1_FLAGS, .rot_standard_ref = NULL, .default_range = 0x10000, /* scale = 1; uscale = 0 */ .min_frequency = OPT3001_LIGHT_MIN_FREQ, .max_frequency = OPT3001_LIGHT_MAX_FREQ, .config = { [SENSOR_CONFIG_EC_S0] = { .odr = 1000, }, }, }, }; const unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors); /* * MCHP: difference from firmware-reef-9042.B * New code doesn't have TASK_ALS */ /* ALS instances when LPC mapping is needed. Each entry directs to a sensor. */ const struct motion_sensor_t *motion_als_sensors[] = { &motion_sensors[LID_ALS], }; BUILD_ASSERT(ARRAY_SIZE(motion_als_sensors) == ALS_COUNT); void board_hibernate(void) { /* * To support hibernate called from console commands, ectool commands * and key sequence, shutdown the AP before hibernating. */ chipset_do_shutdown(); /* Added delay to allow AP to settle down */ msleep(100); /* Enable both the VBUS & VCC ports before entering PG3 */ bd9995x_select_input_port(BD9995X_CHARGE_PORT_BOTH, 1); /* Turn BGATE OFF for saving the power */ bd9995x_set_power_save_mode(BD9995X_PWR_SAVE_MAX); } struct { enum reef_board_version version; int thresh_mv; } const reef_board_versions[] = { /* Vin = 3.3V, R1 = 46.4K, R2 values listed below */ { BOARD_VERSION_1, 328 * 1.03 }, /* 5.11 Kohm */ { BOARD_VERSION_2, 670 * 1.03 }, /* 11.8 Kohm */ { BOARD_VERSION_3, 1012 * 1.03 }, /* 20.5 Kohm */ { BOARD_VERSION_4, 1357 * 1.03 }, /* 32.4 Kohm */ { BOARD_VERSION_5, 1690 * 1.03 }, /* 48.7 Kohm */ { BOARD_VERSION_6, 2020 * 1.03 }, /* 73.2 Kohm */ { BOARD_VERSION_7, 2352 * 1.03 }, /* 115 Kohm */ { BOARD_VERSION_8, 2802 * 1.03 }, /* 261 Kohm */ }; BUILD_ASSERT(ARRAY_SIZE(reef_board_versions) == BOARD_VERSION_COUNT); /* * Checkpatch claims msleep(n) for n < 20 can sleep up to 20 ms. * Loop up to 10 times sampling every 100 us. If 5 or more consecutive * samples are the same exit sample loop. */ int board_get_version(void) { static int version = BOARD_VERSION_UNKNOWN; int mv, i, prev, cnt; if (version != BOARD_VERSION_UNKNOWN) return version; /* FIXME(dhendrix): enable ADC */ gpio_set_flags(GPIO_EC_BRD_ID_EN_ODL, GPIO_ODR_HIGH); gpio_set_level(GPIO_EC_BRD_ID_EN_ODL, 0); /* Wait to allow cap charge */ prev = 0; cnt = 0; for (i = 0; i < 10; i++) { udelay(100); mv = adc_read_channel(ADC_BOARD_ID); if (mv != prev) { prev = mv; cnt = 0; } else { cnt++; } if (cnt >= 5) break; } /* FIXME(dhendrix): disable ADC */ gpio_set_level(GPIO_EC_BRD_ID_EN_ODL, 1); gpio_set_flags(GPIO_EC_BRD_ID_EN_ODL, GPIO_INPUT); if (mv == ADC_READ_ERROR) { version = BOARD_VERSION_UNKNOWN; return version; } for (i = 0; i < BOARD_VERSION_COUNT; i++) { if (mv < reef_board_versions[i].thresh_mv) { version = reef_board_versions[i].version; break; } } CPRINTS("Board version: %d", version); return version; } /* Keyboard scan setting */ struct keyboard_scan_config keyscan_config = { /* * F3 key scan cycle completed but scan input is not * charging to logic high when EC start scan next * column for "T" key, so we set .output_settle_us * to 80us from 50us. */ .output_settle_us = 80, .debounce_down_us = 9 * MSEC, .debounce_up_us = 30 * MSEC, .scan_period_us = 3 * MSEC, .min_post_scan_delay_us = 1000, .poll_timeout_us = 100 * MSEC, .actual_key_mask = { 0x14, 0xff, 0xff, 0xff, 0xff, 0xf5, 0xff, 0xa4, 0xff, 0xfe, 0x55, 0xfa, 0xca /* full set */ }, };