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authorDuncan Laurie <dlaurie@google.com>2018-03-27 12:56:37 -0700
committerchrome-bot <chrome-bot@chromium.org>2018-04-06 14:44:06 -0700
commitc0ebdaee162cc5090458207b354fad4cb8ea89a9 (patch)
tree815f6dad3f37ff31d2a6610d2e1f5431e5c71272 /board/atlas/board.c
parent7e50bfd037af520cafa3e71fafe9e95d1e9487ba (diff)
downloadchrome-ec-c0ebdaee162cc5090458207b354fad4cb8ea89a9.tar.gz
atlas: Add new board
This is based on the initial code from Caveh here: https://chromium-review.googlesource.com/959861 Most things are functional, with some workarounds for P0 boards. The type-c hotplug is not working in this commit, the HPD will be run from the tcpm in the next board build. For now we might be able to get it working on P0 with some more tweaking.. The other known issue is that the battery takes ~2 seconds to come back online after a cutoff (the auto-power-on timeout is one second so the board will not power on like it should) and sometimes the battery is not responding properly on i2c and it requires an EC reset. BUG=b:75070158 BRANCH=none TEST=tested on P0 boards Change-Id: I438cb93b78d6f501426842d6cbe3d6a994563358 Signed-off-by: Duncan Laurie <dlaurie@google.com> Signed-off-by: Caveh Jalali <caveh@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/982498 Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com> Tested-by: Caveh Jalali <caveh@google.com> Reviewed-by: Caveh Jalali <caveh@google.com>
Diffstat (limited to 'board/atlas/board.c')
-rw-r--r--board/atlas/board.c597
1 files changed, 597 insertions, 0 deletions
diff --git a/board/atlas/board.c b/board/atlas/board.c
new file mode 100644
index 0000000000..1399c6040d
--- /dev/null
+++ b/board/atlas/board.c
@@ -0,0 +1,597 @@
+/* Copyright 2018 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.
+ */
+
+/* Atlas board-specific configuration */
+
+#include "adc_chip.h"
+#include "bd99992gw.h"
+#include "board_config.h"
+#include "charge_manager.h"
+#include "charger.h"
+#include "charge_state.h"
+#include "chipset.h"
+#include "console.h"
+#include "driver/accelgyro_bmi160.h"
+#include "driver/als_opt3001.h"
+#include "driver/tcpm/ps8xxx.h"
+#include "driver/tcpm/tcpci.h"
+#include "driver/tcpm/tcpm.h"
+#include "driver/temp_sensor/bd99992gw.h"
+#include "espi.h"
+#include "extpower.h"
+#include "gpio.h"
+#include "hooks.h"
+#include "host_command.h"
+#include "i2c.h"
+#include "keyboard_8042_sharedlib.h"
+#include "keyboard_scan.h"
+#include "lid_switch.h"
+#include "motion_sense.h"
+#include "power_button.h"
+#include "power.h"
+#include "pwm_chip.h"
+#include "pwm.h"
+#include "spi.h"
+#include "switch.h"
+#include "system.h"
+#include "task.h"
+#include "temp_sensor.h"
+#include "timer.h"
+#include "uart.h"
+#include "usb_mux.h"
+#include "usb_pd.h"
+#include "usb_pd_tcpm.h"
+#include "util.h"
+
+#define CPRINTS(format, args...) cprints(CC_SYSTEM, format, ## args)
+#define CPRINTF(format, args...) cprintf(CC_SYSTEM, format, ## args)
+
+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;
+ else if ((signal == GPIO_USB_C1_PD_INT_ODL) &&
+ !gpio_get_level(GPIO_USB_C1_PD_RST_L))
+ return;
+
+#ifdef HAS_TASK_PDCMD
+ /* Exchange status with TCPCs */
+ host_command_pd_send_status(PD_CHARGE_NO_CHANGE);
+#endif
+}
+
+#include "gpio_list.h"
+
+/* power signal list. Must match order of enum power_signal. */
+const struct power_signal_info power_signal_list[] = {
+ {GPIO_SLP_S0_L,
+ POWER_SIGNAL_ACTIVE_HIGH | POWER_SIGNAL_DISABLE_AT_BOOT,
+ "SLP_S0_DEASSERTED"},
+ {VW_SLP_S3_L, POWER_SIGNAL_ACTIVE_HIGH, "SLP_S3_DEASSERTED"},
+ {VW_SLP_S4_L, POWER_SIGNAL_ACTIVE_HIGH, "SLP_S4_DEASSERTED"},
+ {GPIO_PCH_SLP_SUS_L, POWER_SIGNAL_ACTIVE_HIGH, "SLP_SUS_DEASSERTED"},
+ {GPIO_RSMRST_L_PGOOD, POWER_SIGNAL_ACTIVE_HIGH, "RSMRST_L_PGOOD"},
+ {GPIO_PMIC_DPWROK, POWER_SIGNAL_ACTIVE_HIGH, "PMIC_DPWROK"},
+};
+BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);
+
+/* Keyboard scan. Increase output_settle_us to 80us from default 50us. */
+struct keyboard_scan_config keyscan_config = {
+ .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 = {
+ 0x3c, 0xff, 0xff, 0xff, 0xff, 0xf5, 0xff,
+ 0xa4, 0xff, 0xfe, 0x55, 0xfa, 0xca /* full set */
+ },
+};
+
+/* PWM channels. Must be in the exactly same order as in enum pwm_channel. */
+const struct pwm_t pwm_channels[] = {
+ [PWM_CH_KBLIGHT] = { 3, 0, 10000 },
+ [PWM_CH_LED1] = { 0, PWM_CONFIG_DSLEEP, 100 },
+ [PWM_CH_LED2] = { 2, PWM_CONFIG_DSLEEP, 100 },
+};
+BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);
+
+/* Hibernate wake configuration */
+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);
+
+const struct adc_t adc_channels[] = {
+ /*
+ * 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 12.4K resistor, to read
+ * 0.8V @ 45 W, i.e. 56250 uW/mV. Using ADC_MAX_VOLT*56250 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*56250*2/(ADC_READ_MAX+1),
+ 2,
+ 0
+ },
+};
+BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
+
+/* I2C port map */
+const struct i2c_port_t i2c_ports[] = {
+ {"power", I2C_PORT_POWER, 100,
+ GPIO_EC_I2C3_POWER_SCL, GPIO_EC_I2C3_POWER_SDA},
+ {"tcpc0", I2C_PORT_TCPC0, 400,
+ GPIO_EC_I2C0_USB_C0_SCL, GPIO_EC_I2C0_USB_C0_SDA},
+ {"tcpc1", I2C_PORT_TCPC1, 400,
+ GPIO_EC_I2C0_USB_C1_SCL, GPIO_EC_I2C0_USB_C1_SDA},
+ {"sensor", I2C_PORT_SENSOR, 100,
+ GPIO_EC_I2C2_SENSOR_3V3_SCL, GPIO_EC_I2C2_SENSOR_3V3_SDA},
+ {"battery", I2C_PORT_BATTERY, 100,
+ GPIO_EC_I2C4_BATTERY_SCL, GPIO_EC_I2C4_BATTERY_SDA},
+ {"gyro", I2C_PORT_GYRO, 100,
+ GPIO_EC_I2C1_GYRO_SCL, GPIO_EC_I2C1_GYRO_SDA},
+};
+const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
+
+/* TCPC mux configuration */
+const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = {
+ {
+ .i2c_host_port = I2C_PORT_TCPC0,
+ .i2c_slave_addr = I2C_ADDR_TCPC,
+ .drv = &ps8xxx_tcpm_drv,
+ .pol = TCPC_ALERT_ACTIVE_LOW
+ },
+ {
+ .i2c_host_port = I2C_PORT_TCPC1,
+ .i2c_slave_addr = I2C_ADDR_TCPC,
+ .drv = &ps8xxx_tcpm_drv,
+ .pol = TCPC_ALERT_ACTIVE_LOW
+ },
+};
+
+struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_COUNT] = {
+ {
+ .port_addr = 0,
+ .driver = &tcpci_tcpm_usb_mux_driver,
+ },
+ {
+ .port_addr = 1,
+ .driver = &tcpci_tcpm_usb_mux_driver,
+ },
+};
+
+void board_reset_pd_mcu(void)
+{
+ gpio_set_level(GPIO_USB_PD_RST_L, 0);
+ msleep(PS8XXX_RST_L_RST_H_DELAY_MS);
+ gpio_set_level(GPIO_USB_PD_RST_L, 1);
+}
+
+void board_tcpc_init(void)
+{
+ /* Only reset TCPC if not sysjump */
+ if (!system_jumped_to_this_image())
+ board_reset_pd_mcu();
+
+ gpio_enable_interrupt(GPIO_USB_C0_PD_INT_ODL);
+ gpio_enable_interrupt(GPIO_USB_C1_PD_INT_ODL);
+}
+DECLARE_HOOK(HOOK_INIT, board_tcpc_init, HOOK_PRIO_INIT_I2C+1);
+
+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;
+}
+
+const struct temp_sensor_t temp_sensors[] = {
+ {"Battery", TEMP_SENSOR_TYPE_BATTERY, charge_get_battery_temp, 0, 4},
+ /* BD99992GW temp sensors are only readable in S0 */
+ {"systherm0", TEMP_SENSOR_TYPE_BOARD, bd99992gw_get_val,
+ BD99992GW_ADC_CHANNEL_SYSTHERM0, 4},
+ {"systherm1", TEMP_SENSOR_TYPE_BOARD, bd99992gw_get_val,
+ BD99992GW_ADC_CHANNEL_SYSTHERM1, 4},
+ {"systherm2", TEMP_SENSOR_TYPE_BOARD, bd99992gw_get_val,
+ BD99992GW_ADC_CHANNEL_SYSTHERM2, 4},
+ {"systherm3", TEMP_SENSOR_TYPE_BOARD, bd99992gw_get_val,
+ BD99992GW_ADC_CHANNEL_SYSTHERM3, 4},
+ {"gyro", TEMP_SENSOR_TYPE_BOARD, bmi160_get_sensor_temp, BASE_GYRO, 1},
+};
+BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);
+
+/*
+ * Check if PMIC fault registers indicate VR fault. If yes, print out fault
+ * register info to console. Additionally, set panic reason so that the OS can
+ * check for fault register info by looking at offset 0x14(PWRSTAT1) and
+ * 0x15(PWRSTAT2) in cros ec panicinfo.
+ */
+static void board_report_pmic_fault(const char *str)
+{
+ int vrfault, pwrstat1 = 0, pwrstat2 = 0;
+ uint32_t info;
+
+ /* RESETIRQ1 -- Bit 4: VRFAULT */
+ if (i2c_read8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x8, &vrfault)
+ != EC_SUCCESS)
+ return;
+
+ if (!(vrfault & (1 << 4)))
+ return;
+
+ /* VRFAULT has occurred, print VRFAULT status bits. */
+
+ /* PWRSTAT1 */
+ i2c_read8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x16, &pwrstat1);
+
+ /* PWRSTAT2 */
+ i2c_read8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x17, &pwrstat2);
+
+ CPRINTS("PMIC VRFAULT: %s", str);
+ CPRINTS("PMIC VRFAULT: PWRSTAT1=0x%02x PWRSTAT2=0x%02x", pwrstat1,
+ pwrstat2);
+
+ /* Clear all faults -- Write 1 to clear. */
+ i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x8, (1 << 4));
+ i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x16, pwrstat1);
+ i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x17, pwrstat2);
+
+ /*
+ * Status of the fault registers can be checked in the OS by looking at
+ * offset 0x14(PWRSTAT1) and 0x15(PWRSTAT2) in cros ec panicinfo.
+ */
+ info = ((pwrstat2 & 0xFF) << 8) | (pwrstat1 & 0xFF);
+ panic_set_reason(PANIC_SW_PMIC_FAULT, info, 0);
+}
+
+static void board_pmic_disable_slp_s0_vr_decay(void)
+{
+ /*
+ * VCCIOCNT:
+ * Bit 6 (0) - Disable decay of VCCIO on SLP_S0# assertion
+ * Bits 5:4 (00) - Nominal output voltage: 0.850V
+ * Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
+ * Bits 1:0 (10) - VR set to AUTO operating mode
+ */
+ i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x30, 0x3a);
+
+ /*
+ * V18ACNT:
+ * Bits 7:6 (00) - Disable low power mode on SLP_S0# assertion
+ * Bits 5:4 (10) - Nominal voltage set to 1.8V
+ * Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
+ * Bits 1:0 (10) - VR set to AUTO operating mode
+ */
+ i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x34, 0x2a);
+
+ /*
+ * V100ACNT:
+ * Bits 7:6 (00) - Disable low power mode on SLP_S0# assertion
+ * Bits 5:4 (01) - Nominal voltage 1.0V
+ * Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
+ * Bits 1:0 (10) - VR set to AUTO operating mode
+ */
+ i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x37, 0x1a);
+
+ /*
+ * V085ACNT:
+ * Bits 7:6 (00) - Disable low power mode on SLP_S0# assertion
+ * Bits 5:4 (11) - Nominal voltage 0.85V
+ * Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
+ * Bits 1:0 (10) - VR set to AUTO operating mode
+ */
+ i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x38, 0x2a);
+}
+
+static void board_pmic_enable_slp_s0_vr_decay(void)
+{
+ /*
+ * VCCIOCNT:
+ * Bit 6 (1) - Enable decay of VCCIO on SLP_S0# assertion
+ * Bits 5:4 (00) - Nominal output voltage: 0.850V
+ * Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
+ * Bits 1:0 (10) - VR set to AUTO operating mode
+ */
+ i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x30, 0x7a);
+
+ /*
+ * V18ACNT:
+ * Bits 7:6 (01) - Enable low power mode on SLP_S0# assertion
+ * Bits 5:4 (10) - Nominal voltage set to 1.8V
+ * Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
+ * Bits 1:0 (10) - VR set to AUTO operating mode
+ */
+ i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x34, 0x6a);
+
+ /*
+ * V100ACNT:
+ * Bits 7:6 (01) - Enable low power mode on SLP_S0# assertion
+ * Bits 5:4 (01) - Nominal voltage 1.0V
+ * Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
+ * Bits 1:0 (10) - VR set to AUTO operating mode
+ */
+ i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x37, 0x5a);
+
+ /*
+ * V085ACNT:
+ * Bits 7:6 (01) - Enable low power mode on SLP_S0# assertion
+ * Bits 5:4 (11) - Nominal voltage 0.85V
+ * Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
+ * Bits 1:0 (10) - VR set to AUTO operating mode
+ */
+ i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x38, 0x6a);
+}
+
+void power_board_handle_host_sleep_event(enum host_sleep_event state)
+{
+ if (state == HOST_SLEEP_EVENT_S0IX_SUSPEND)
+ board_pmic_enable_slp_s0_vr_decay();
+ else if (state == HOST_SLEEP_EVENT_S0IX_RESUME)
+ board_pmic_disable_slp_s0_vr_decay();
+}
+
+static void board_pmic_init(void)
+{
+ board_report_pmic_fault("SYSJUMP");
+
+ /* Clear power source events */
+ i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x04, 0xff);
+
+ /* Disable power button shutdown timer */
+ i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x14, 0x00);
+
+ if (system_jumped_to_this_image())
+ return;
+
+ /* DISCHGCNT2 - enable 100 ohm discharge on V3.3A and V1.8A */
+ i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x3d, 0x05);
+
+ /* DISCHGCNT3 - enable 100 ohm discharge on V1.00A */
+ i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x3e, 0x04);
+
+ /*
+ * Set V085ACNT / V0.85A Control Register:
+ * Nominal output = 0.85V.
+ */
+ i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x38, 0x2a);
+
+ /* VRMODECTRL - disable low-power mode for all rails */
+ i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x3b, 0x1f);
+}
+DECLARE_HOOK(HOOK_INIT, board_pmic_init, HOOK_PRIO_DEFAULT);
+
+/* Initialize board. */
+static void board_init(void)
+{
+ /* Provide AC status to the PCH */
+ gpio_set_level(GPIO_PCH_ACOK, extpower_is_present());
+
+ /* Enable interrupts from BMI160 sensor. */
+ gpio_enable_interrupt(GPIO_ACCELGYRO3_INT_L);
+}
+DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
+
+static void board_extpower(void)
+{
+ gpio_set_level(GPIO_PCH_ACOK, extpower_is_present());
+}
+DECLARE_HOOK(HOOK_AC_CHANGE, board_extpower, HOOK_PRIO_DEFAULT);
+
+/**
+ * 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)
+{
+ /* charge port is a physical port */
+ int is_real_port = (charge_port >= 0 &&
+ charge_port < CONFIG_USB_PD_PORT_COUNT);
+ /* check if we are sourcing VBUS on the port */
+ int is_source = gpio_get_level(charge_port == 0 ?
+ GPIO_USB_C0_5V_EN : GPIO_USB_C1_5V_EN);
+
+ if (is_real_port && is_source) {
+ CPRINTF("No charging on source port p%d is ", charge_port);
+ return EC_ERROR_INVAL;
+ }
+
+ CPRINTF("New chg p%d", charge_port);
+
+ if (charge_port == CHARGE_PORT_NONE) {
+ /* Disable both ports */
+ gpio_set_level(GPIO_EN_USB_C0_CHARGE_L, 1);
+ gpio_set_level(GPIO_EN_USB_C1_CHARGE_L, 1);
+ } else {
+ /* Make sure non-charging port is disabled */
+ gpio_set_level(charge_port ? GPIO_EN_USB_C0_CHARGE_L :
+ GPIO_EN_USB_C1_CHARGE_L, 1);
+ /* Enable charging port */
+ gpio_set_level(charge_port ? GPIO_EN_USB_C1_CHARGE_L :
+ GPIO_EN_USB_C0_CHARGE_L, 0);
+ }
+
+ 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 the input current to 95% negotiated limit,
+ * to account for the charger chip margin.
+ */
+ charge_ma = (charge_ma * 95) / 100;
+ charge_set_input_current_limit(MAX(charge_ma,
+ CONFIG_CHARGER_INPUT_CURRENT), charge_mv);
+}
+
+static void board_chipset_suspend(void)
+{
+ gpio_set_level(GPIO_ENABLE_BACKLIGHT, 0);
+}
+DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT);
+
+static void board_chipset_resume(void)
+{
+ gpio_set_level(GPIO_ENABLE_BACKLIGHT, 1);
+}
+DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT);
+
+static void board_chipset_reset(void)
+{
+ board_report_pmic_fault("CHIPSET RESET");
+}
+DECLARE_HOOK(HOOK_CHIPSET_RESET, board_chipset_reset, HOOK_PRIO_DEFAULT);
+
+int board_get_version(void)
+{
+ static int ver;
+
+ if (!ver) {
+ /*
+ * Read the board EC ID on the tristate strappings
+ * using ternary encoding: 0 = 0, 1 = 1, Hi-Z = 2
+ */
+ uint8_t id0, id1, id2;
+
+ id0 = gpio_get_ternary(GPIO_BOARD_VERSION1);
+ id1 = gpio_get_ternary(GPIO_BOARD_VERSION2);
+ id2 = gpio_get_ternary(GPIO_BOARD_VERSION3);
+
+ ver = (id2 * 9) + (id1 * 3) + id0;
+ CPRINTS("Board ID = %d", ver);
+ }
+
+ return ver;
+}
+
+/* Base Sensor mutex */
+static struct mutex g_base_mutex;
+
+static struct bmi160_drv_data_t g_bmi160_data;
+static struct opt3001_drv_data_t g_opt3001_data = {
+ .scale = 1,
+ .uscale = 0,
+ .offset = 0,
+};
+
+/* Matrix to rotate accelrator 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)}
+};
+
+struct motion_sensor_t motion_sensors[] = {
+ [BASE_ACCEL] = {
+ .name = "Base Accel",
+ .active_mask = SENSOR_ACTIVE_S0_S3_S5,
+ .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. */
+ .min_frequency = BMI160_ACCEL_MIN_FREQ,
+ .max_frequency = BMI160_ACCEL_MAX_FREQ,
+ .config = {
+ [SENSOR_CONFIG_EC_S0] = {
+ .odr = 10000 | ROUND_UP_FLAG,
+ .ec_rate = 100 * MSEC,
+ },
+ [SENSOR_CONFIG_EC_S3] = {
+ .odr = 10000 | ROUND_UP_FLAG,
+ },
+ },
+ },
+ [BASE_GYRO] = {
+ .name = "Base Gyro",
+ .active_mask = SENSOR_ACTIVE_S0_S3_S5,
+ .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,
+ .min_frequency = BMI160_GYRO_MIN_FREQ,
+ .max_frequency = BMI160_GYRO_MAX_FREQ,
+ },
+ [LID_ALS] = {
+ .name = "Light",
+ .active_mask = SENSOR_ACTIVE_S0,
+ .chip = MOTIONSENSE_CHIP_OPT3001,
+ .type = MOTIONSENSE_TYPE_LIGHT,
+ .location = MOTIONSENSE_LOC_LID,
+ .drv = &opt3001_drv,
+ .drv_data = &g_opt3001_data,
+ .port = I2C_PORT_SENSOR,
+ .addr = OPT3001_I2C_ADDR,
+ .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 on in S0 */
+ [SENSOR_CONFIG_EC_S0] = {
+ .odr = 1000,
+ },
+ },
+ },
+};
+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);