diff options
author | YH Lin <yueherngl@google.com> | 2017-05-15 10:46:16 -0700 |
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committer | chrome-bot <chrome-bot@chromium.org> | 2017-05-16 20:55:50 -0700 |
commit | 9fd645a0051fcf5e19a2cafe74aa2016897cd86b (patch) | |
tree | d9422885ddea8c68a0632e8cd0367e75810c4a0c /board/coral/board.c | |
parent | 7456475f99831bbeeca72c9c153e05b4558f832b (diff) | |
download | chrome-ec-9fd645a0051fcf5e19a2cafe74aa2016897cd86b.tar.gz |
ec: add initial coral related files
For now use the files from reef. To be changed later on.
BRANCH=none
BUG=b:38271615
TEST=emerge-coral chromeos-ec
Change-Id: Iff0a7b21b575d6394c27ff9959010496801fd056
Reviewed-on: https://chromium-review.googlesource.com/506117
Commit-Ready: YH Lin <yueherngl@chromium.org>
Tested-by: YH Lin <yueherngl@chromium.org>
Reviewed-by: Scott Collyer <scollyer@chromium.org>
Diffstat (limited to 'board/coral/board.c')
-rw-r--r-- | board/coral/board.c | 1145 |
1 files changed, 1145 insertions, 0 deletions
diff --git a/board/coral/board.c b/board/coral/board.c new file mode 100644 index 0000000000..0e2923bf83 --- /dev/null +++ b/board/coral/board.c @@ -0,0 +1,1145 @@ +/* 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. + */ + +/* Coral board-specific configuration */ + +#include "adc.h" +#include "adc_chip.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_bmi160.h" +#include "driver/baro_bmp280.h" +#include "driver/charger/bd9995x.h" +#include "driver/tcpm/anx74xx.h" +#include "driver/tcpm/ps8751.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 "spi.h" +#include "switch.h" +#include "system.h" +#include "tablet_mode.h" +#include "task.h" +#include "temp_sensor.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 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 + +static void tcpc_alert_event(enum gpio_signal signal) +{ + if ((signal == GPIO_USB_C0_PD_INT_ODL) && + !gpio_get_level(GPIO_USB_C0_PD_RST_L)) + return; + + if ((signal == GPIO_USB_C1_PD_INT_ODL) && + !gpio_get_level(GPIO_USB_C1_PD_RST_ODL)) + return; + +#ifdef HAS_TASK_PDCMD + /* Exchange status with TCPCs */ + host_command_pd_send_status(PD_CHARGE_NO_CHANGE); +#endif +} + +#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); + +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" + +/* power signal list. Must match order of enum power_signal. */ +const struct power_signal_info power_signal_list[] = { + {GPIO_RSMRST_L_PGOOD, 1, "RSMRST_L"}, + {GPIO_PCH_SLP_S3_L, 1, "SLP_S3_DEASSERTED"}, + {GPIO_PCH_SLP_S4_L, 1, "SLP_S4_DEASSERTED"}, + {GPIO_SUSPWRNACK, 1, "SUSPWRNACK_DEASSERTED"}, + + {GPIO_ALL_SYS_PGOOD, 1, "ALL_SYS_PGOOD"}, + {GPIO_PP3300_PG, 1, "PP3300_PG"}, + {GPIO_PP5000_PG, 1, "PP5000_PG"}, +}; +BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT); + +/* ADC channels */ +const struct adc_t adc_channels[] = { + /* Vfs = Vref = 2.816V, 10-bit unsigned reading */ + [ADC_TEMP_SENSOR_CHARGER] = { + "CHARGER", NPCX_ADC_CH0, ADC_MAX_VOLT, ADC_READ_MAX + 1, 0 + }, + [ADC_TEMP_SENSOR_AMB] = { + "AMBIENT", NPCX_ADC_CH1, ADC_MAX_VOLT, ADC_READ_MAX + 1, 0 + }, + [ADC_BOARD_ID] = { + "BRD_ID", NPCX_ADC_CH2, ADC_MAX_VOLT, ADC_READ_MAX + 1, 0 + }, +}; +BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT); + +/* PWM channels. Must be in the exactly same order as in enum pwm_channel. */ +const struct pwm_t pwm_channels[] = { + [PWM_CH_LED_GREEN] = { 2, PWM_CONFIG_DSLEEP, 100 }, + [PWM_CH_LED_RED] = { 3, PWM_CONFIG_DSLEEP, 100 }, +}; +BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT); + +const struct i2c_port_t i2c_ports[] = { + {"tcpc0", NPCX_I2C_PORT0_0, 400, + GPIO_EC_I2C_USB_C0_PD_SCL, GPIO_EC_I2C_USB_C0_PD_SDA}, + {"tcpc1", NPCX_I2C_PORT0_1, 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", NPCX_I2C_PORT2, 400, + GPIO_EC_I2C_SENSOR_SCL, GPIO_EC_I2C_SENSOR_SDA}, + {"batt", NPCX_I2C_PORT3, 100, + GPIO_EC_I2C_POWER_SCL, GPIO_EC_I2C_POWER_SDA}, +}; +const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports); + +#ifdef CONFIG_CMD_I2C_STRESS_TEST +struct i2c_stress_test i2c_stress_tests[] = { +/* NPCX_I2C_PORT0_0 */ +#ifdef CONFIG_CMD_I2C_STRESS_TEST_TCPC + { + .port = NPCX_I2C_PORT0_0, + .addr = 0x50, + .i2c_test = &anx74xx_i2c_stress_test_dev, + }, +#endif + +/* NPCX_I2C_PORT0_1 */ +#ifdef CONFIG_CMD_I2C_STRESS_TEST_TCPC + { + .port = NPCX_I2C_PORT0_1, + .addr = 0x16, + .i2c_test = &ps8751_i2c_stress_test_dev, + }, +#endif + +/* NPCX_I2C_PORT1 */ +#ifdef CONFIG_CMD_I2C_STRESS_TEST_ACCEL + { + .port = I2C_PORT_GYRO, + .addr = BMI160_ADDR0, + .i2c_test = &bmi160_i2c_stress_test_dev, + }, +#endif + +/* NPCX_I2C_PORT2 */ +#ifdef CONFIG_CMD_I2C_STRESS_TEST_ACCEL + { + .port = I2C_PORT_BARO, + .addr = BMP280_I2C_ADDRESS1, + .i2c_test = &bmp280_i2c_stress_test_dev, + }, + { + .port = I2C_PORT_LID_ACCEL, + .addr = KX022_ADDR1, + .i2c_test = &kionix_i2c_stress_test_dev, + }, +#endif +#ifdef CONFIG_CMD_I2C_STRESS_TEST_ALS + { + .port = I2C_PORT_ALS, + .addr = OPT3001_I2C_ADDR1, + .i2c_test = &opt3001_i2c_stress_test_dev, + }, +#endif + +/* NPCX_I2C_PORT3 */ +#ifdef CONFIG_CMD_I2C_STRESS_TEST_BATTERY + { + .i2c_test = &battery_i2c_stress_test_dev, + }, +#endif +#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_COUNT] = { + [USB_PD_PORT_ANX74XX] = { + .i2c_host_port = NPCX_I2C_PORT0_0, + .i2c_slave_addr = 0x50, + .drv = &anx74xx_tcpm_drv, + .pol = TCPC_ALERT_ACTIVE_LOW, + }, + [USB_PD_PORT_PS8751] = { + .i2c_host_port = NPCX_I2C_PORT0_1, + .i2c_slave_addr = 0x16, + .drv = &tcpci_tcpm_drv, + .pol = TCPC_ALERT_ACTIVE_LOW, + }, +}; + +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); + +static int ps8751_tune_mux(const struct usb_mux *mux) +{ + /* 0x98 sets lower EQ of DP port (4.5db) */ + i2c_write8(NPCX_I2C_PORT0_1, 0x16, PS8751_REG_MUX_DP_EQ_CONFIGURATION, + 0x98); + return EC_SUCCESS; +} + +struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_COUNT] = { + { + .port_addr = USB_PD_PORT_ANX74XX, /* don't care / unused */ + .driver = &anx74xx_tcpm_usb_mux_driver, + .hpd_update = &anx74xx_tcpc_update_hpd_status, + }, + { + .port_addr = USB_PD_PORT_PS8751, + .driver = &tcpci_tcpm_usb_mux_driver, + .hpd_update = &ps8751_tcpc_update_hpd_status, + .board_init = &ps8751_tune_mux, + } +}; + +const int usb_port_enable[CONFIG_USB_PORT_POWER_SMART_PORT_COUNT] = { + GPIO_USB1_ENABLE, +}; + +/* called from anx74xx_set_power_mode() */ +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(10); + 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(1); + gpio_set_level(GPIO_EN_USB_TCPC_PWR, 0); + break; + default: + break; + } +} + +/** + * Reset PD MCU -- 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 */ + board_set_tcpc_power_mode(0, 0); + + /* Deassert reset to TCPC1 */ + gpio_set_level(GPIO_USB_C1_PD_RST_ODL, 1); + + /* TCPC0 requires 10ms reset/power down assertion */ + msleep(10); + + /* Deassert reset to TCPC0 */ + board_set_tcpc_power_mode(0, 1); +} + +void board_tcpc_init(void) +{ + int port, reg; + + /* Only reset TCPC if not sysjump */ + if (!system_jumped_to_this_image()) + board_reset_pd_mcu(); + + /* + * TODO: Remove when Coral 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. + */ + i2c_read8(NPCX_I2C_PORT0_1, 0x10, 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 (port = 0; port < CONFIG_USB_PD_PORT_COUNT; port++) { + const struct usb_mux *mux = &usb_muxes[port]; + + 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(NPCX_ADC_CH0); + + 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(NPCX_ADC_CH1); + + if (mv < 0) + return -1; + + *temp_ptr = thermistor_linear_interpolate(mv, &amb_thermistor_info); + *temp_ptr = C_TO_K(*temp_ptr); + return 0; +} + + +const struct temp_sensor_t temp_sensors[] = { + /* FIXME(dhendrix): tweak action_delay_sec */ + {"Battery", TEMP_SENSOR_TYPE_BATTERY, charge_get_battery_temp, 0, 1}, + {"Ambient", TEMP_SENSOR_TYPE_BOARD, board_get_ambient_temp, 0, 5}, + {"Charger", TEMP_SENSOR_TYPE_BOARD, board_get_charger_temp, 1, 1}, +}; +BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT); + +const struct button_config buttons[CONFIG_BUTTON_COUNT] = { + {"Volume Down", KEYBOARD_BUTTON_VOLUME_DOWN, GPIO_EC_VOLDN_BTN_ODL, + 30 * MSEC, 0}, + {"Volume Up", KEYBOARD_BUTTON_VOLUME_UP, GPIO_EC_VOLUP_BTN_ODL, + 30 * MSEC, 0}, +}; + +/* Called by APL power state machine when transitioning from G3 to S5 */ +static void chipset_pre_init(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); +} +DECLARE_HOOK(HOOK_CHIPSET_PRE_INIT, chipset_pre_init, HOOK_PRIO_DEFAULT); + +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); + +int pd_snk_is_vbus_provided(int port) +{ + enum bd9995x_charge_port bd9995x_port; + + switch (port) { + case USB_PD_PORT_ANX74XX: + case USB_PD_PORT_PS8751: + bd9995x_port = bd9995x_pd_port_to_chg_port(port); + break; + default: + panic("Invalid charge port\n"); + break; + } + + return bd9995x_is_vbus_provided(bd9995x_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; + 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; + + 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 = bd9995x_pd_port_to_chg_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); + initialized = 1; + + 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 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_OTHER); +} + +/** + * Return the maximum allowed input current + */ +int board_get_ramp_current_limit(int supplier, int sup_curr) +{ + return bd9995x_get_bc12_ilim(supplier); +} + +/** + * 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) +{ + return charger_get_vbus_voltage(port) < 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 and touchpad. */ + 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? */ +/* 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 Coral. + */ +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 matrix_3x3_t base_standard_ref = { + { 0, FLOAT_TO_FP(-1), 0}, + { FLOAT_TO_FP(1), 0, 0}, + { 0, 0, FLOAT_TO_FP(1)} +}; + +const matrix_3x3_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 */ +struct kionix_accel_data g_kx022_data; +struct bmi160_drv_data_t g_bmi160_data; +struct bmp280_drv_data_t bmp280_drv_data; +struct opt3001_drv_data_t g_opt3001_data = { + .attenuation = 5, +}; + +/* FIXME(dhendrix): Copied from Amenia, probably need to tweak for Coral */ +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, + .addr = KX022_ADDR1, + .rot_standard_ref = NULL, /* Identity matrix. */ + .default_range = 2, /* g, enough for laptop. */ + .config = { + /* AP: by default use EC settings */ + [SENSOR_CONFIG_AP] = { + .odr = 0, + .ec_rate = 0, + }, + /* EC use accel for angle detection */ + [SENSOR_CONFIG_EC_S0] = { + .odr = 10000 | ROUND_UP_FLAG, + .ec_rate = 0, + }, + /* Sensor on for lid angle detection */ + [SENSOR_CONFIG_EC_S3] = { + .odr = 10000 | ROUND_UP_FLAG, + .ec_rate = 0, + }, + [SENSOR_CONFIG_EC_S5] = { + .odr = 0, + .ec_rate = 0, + }, + }, + }, + + [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, + .addr = BMI160_ADDR0, + .rot_standard_ref = &base_standard_ref, + .default_range = 2, /* g, enough for laptop. */ + .config = { + /* AP: by default use EC settings */ + [SENSOR_CONFIG_AP] = { + .odr = 0, + .ec_rate = 0, + }, + /* 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, + }, + /* Sensor off in S3/S5 */ + [SENSOR_CONFIG_EC_S5] = { + .odr = 0, + .ec_rate = 0 + }, + }, + }, + + [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, + .addr = BMI160_ADDR0, + .default_range = 1000, /* dps */ + .rot_standard_ref = &base_standard_ref, + .config = { + /* AP: by default shutdown all sensors */ + [SENSOR_CONFIG_AP] = { + .odr = 0, + .ec_rate = 0, + }, + /* EC does not need in S0 */ + [SENSOR_CONFIG_EC_S0] = { + .odr = 0, + .ec_rate = 0, + }, + /* Sensor off in S3/S5 */ + [SENSOR_CONFIG_EC_S3] = { + .odr = 0, + .ec_rate = 0, + }, + /* Sensor off in S3/S5 */ + [SENSOR_CONFIG_EC_S5] = { + .odr = 0, + .ec_rate = 0, + }, + }, + }, + + [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, + .addr = BMI160_ADDR0, + .default_range = 1 << 11, /* 16LSB / uT, fixed */ + .rot_standard_ref = &mag_standard_ref, + .config = { + /* AP: by default shutdown all sensors */ + [SENSOR_CONFIG_AP] = { + .odr = 0, + .ec_rate = 0, + }, + /* EC does not need in S0 */ + [SENSOR_CONFIG_EC_S0] = { + .odr = 0, + .ec_rate = 0, + }, + /* Sensor off in S3/S5 */ + [SENSOR_CONFIG_EC_S3] = { + .odr = 0, + .ec_rate = 0, + }, + /* Sensor off in S3/S5 */ + [SENSOR_CONFIG_EC_S5] = { + .odr = 0, + .ec_rate = 0, + }, + }, + }, + + [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, + .addr = BMP280_I2C_ADDRESS1, + .default_range = 1 << 18, /* 1bit = 4 Pa, 16bit ~= 2600 hPa */ + .config = { + /* AP: by default shutdown all sensors */ + [SENSOR_CONFIG_AP] = { + .odr = 0, + .ec_rate = 0, + }, + /* EC does not need in S0 */ + [SENSOR_CONFIG_EC_S0] = { + .odr = 0, + .ec_rate = 0, + }, + /* Sensor off in S3/S5 */ + [SENSOR_CONFIG_EC_S3] = { + .odr = 0, + .ec_rate = 0, + }, + /* Sensor off in S3/S5 */ + [SENSOR_CONFIG_EC_S5] = { + .odr = 0, + .ec_rate = 0, + }, + }, + }, + [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, + .addr = OPT3001_I2C_ADDR1, + .rot_standard_ref = NULL, + .default_range = OPT3001_RANGE_AUTOMATIC_FULL_SCALE, + .config = { + /* AP: by default shutdown all sensors */ + [SENSOR_CONFIG_AP] = { + .odr = 0, + .ec_rate = 0, + }, + [SENSOR_CONFIG_EC_S0] = { + .odr = 1000, + .ec_rate = 0, + }, + /* Sensor off in S3/S5 */ + [SENSOR_CONFIG_EC_S3] = { + .odr = 0, + .ec_rate = 0, + }, + /* Sensor off in S3/S5 */ + [SENSOR_CONFIG_EC_S5] = { + .odr = 0, + .ec_rate = 0, + }, + }, + }, +}; +const unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors); + +/* 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 coral_board_version version; + int thresh_mv; +} const coral_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(coral_board_versions) == BOARD_VERSION_COUNT); + +int board_get_version(void) +{ + static int version = BOARD_VERSION_UNKNOWN; + int mv, i; + + 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 */ + msleep(1); + mv = adc_read_channel(ADC_BOARD_ID); + /* 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 < coral_board_versions[i].thresh_mv) { + version = coral_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 */ + }, +}; |