text: /* Copyright (c) 2013 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.
   */
  /* EC for Samus board configuration */
  
  #include "als.h"
  #include "adc.h"
  #include "adc_chip.h"
  #include "backlight.h"
  #include "battery.h"
  #include "capsense.h"
  #include "charger.h"
  #include "charge_state.h"
  #include "common.h"
  #include "console.h"
  #include "driver/accel_kxcj9.h"
  #include "driver/accelgyro_lsm6ds0.h"
  #include "driver/als_isl29035.h"
  #include "driver/temp_sensor/tmp006.h"
  #include "extpower.h"
  #include "fan.h"
  #include "gpio.h"
  #include "hooks.h"
  #include "host_command.h"
  #include "i2c.h"
  #include "jtag.h"
  #include "keyboard_scan.h"
  #include "lid_switch.h"
  #include "lightbar.h"
  #include "motion_sense.h"
  #include "motion_lid.h"
  #include "peci.h"
  #include "power.h"
  #include "power_button.h"
  #include "pwm.h"
  #include "pwm_chip.h"
  #include "registers.h"
  #include "switch.h"
  #include "task.h"
  #include "temp_sensor.h"
  #include "temp_sensor_chip.h"
  #include "timer.h"
  #include "thermal.h"
  #include "uart.h"
  #include "util.h"
  
  static void pd_mcu_interrupt(enum gpio_signal signal)
  {
  	/* Exchange status with PD MCU. */
  	host_command_pd_send_status(PD_CHARGE_NO_CHANGE);
  }
  
  #include "gpio_list.h"
  
  /* power signal list.  Must match order of enum power_signal. */
  const struct power_signal_info power_signal_list[] = {
  	{GPIO_PP1050_PGOOD,  1, "PGOOD_PP1050"},
  	{GPIO_PP1200_PGOOD,  1, "PGOOD_PP1200"},
  	{GPIO_PP1800_PGOOD,  1, "PGOOD_PP1800"},
  	{GPIO_VCORE_PGOOD,   1, "PGOOD_VCORE"},
  	{GPIO_PCH_SLP_S0_L,  1, "SLP_S0_DEASSERTED"},
  	{GPIO_PCH_SLP_S3_L,  1, "SLP_S3_DEASSERTED"},
  	{GPIO_PCH_SLP_S5_L,  1, "SLP_S5_DEASSERTED"},
  	{GPIO_PCH_SLP_SUS_L, 1, "SLP_SUS_DEASSERTED"},
  	{GPIO_PCH_SUSWARN_L, 1, "SUSWARN_DEASSERTED"},
  };
  BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);
  
  /* ADC channels. Must be in the exactly same order as in enum adc_channel. */
  const struct adc_t adc_channels[] = {
  	/*
  	 * EC internal temperature is calculated by
  	 * 273 + (295 - 450 * ADC_VALUE / ADC_READ_MAX) / 2
  	 * = -225 * ADC_VALUE / ADC_READ_MAX + 420.5
  	 */
  	{"ECTemp", LM4_ADC_SEQ0, -225, ADC_READ_MAX, 420,
  	 LM4_AIN_NONE, 0x0e /* TS0 | IE0 | END0 */, 0, 0},
  	/*
  	 * TODO(crosbug.com/p/23827): We don't know what to expect here, but
  	 * it's an analog input that's pulled high. We're using it as a battery
  	 * presence indicator for now. We'll return just 0 - ADC_READ_MAX for
  	 * now.
  	 */
  	{"BatteryTemp", LM4_ADC_SEQ2, 1, 1, 0,
  	 LM4_AIN(10), 0x06 /* IE0 | END0 */, LM4_GPIO_B, (1<<4)},
  };
  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[] = {
  	{4, 0},
  };
  BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);
  
  /* Physical fans. These are logically separate from pwm_channels. */
  const struct fan_t fans[] = {
  	{.flags = FAN_USE_RPM_MODE,
  	 .rpm_min = 1000,
  	 .rpm_start = 1000,
  	 .rpm_max = 6350,
  	 .ch = 2,
  	 .pgood_gpio = -1,
  	 .enable_gpio = -1,
  	},
  	{.flags = FAN_USE_RPM_MODE,
  	 .rpm_min = 1000,
  	 .rpm_start = 1000,
  	 .rpm_max = 6350,
  	 .ch = 3,
  	 .pgood_gpio = -1,
  	 .enable_gpio = -1,
  	},
  };
  BUILD_ASSERT(ARRAY_SIZE(fans) == CONFIG_FANS);
  
  /* I2C ports */
  const struct i2c_port_t i2c_ports[] = {
  	{"batt_chg", 0, 100, GPIO_I2C0_SCL, GPIO_I2C0_SDA},
  	{"lightbar", 1, 400, GPIO_I2C1_SCL, GPIO_I2C1_SDA},
  	{"thermal",  5, 100, GPIO_I2C5_SCL, GPIO_I2C5_SDA},
  };
  const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
  
  #define TEMP_U40_REG_ADDR	((0x40 << 1) | I2C_FLAG_BIG_ENDIAN)
  #define TEMP_U41_REG_ADDR	((0x44 << 1) | I2C_FLAG_BIG_ENDIAN)
  #define TEMP_U42_REG_ADDR	((0x41 << 1) | I2C_FLAG_BIG_ENDIAN)
  #define TEMP_U43_REG_ADDR	((0x45 << 1) | I2C_FLAG_BIG_ENDIAN)
  #define TEMP_U115_REG_ADDR	((0x42 << 1) | I2C_FLAG_BIG_ENDIAN)
  #define TEMP_U116_REG_ADDR	((0x43 << 1) | I2C_FLAG_BIG_ENDIAN)
  
  #define TEMP_U40_ADDR TMP006_ADDR(I2C_PORT_THERMAL, TEMP_U40_REG_ADDR)
  #define TEMP_U41_ADDR TMP006_ADDR(I2C_PORT_THERMAL, TEMP_U41_REG_ADDR)
  #define TEMP_U42_ADDR TMP006_ADDR(I2C_PORT_THERMAL, TEMP_U42_REG_ADDR)
  #define TEMP_U43_ADDR TMP006_ADDR(I2C_PORT_THERMAL, TEMP_U43_REG_ADDR)
  #define TEMP_U115_ADDR TMP006_ADDR(I2C_PORT_THERMAL, TEMP_U115_REG_ADDR)
  #define TEMP_U116_ADDR TMP006_ADDR(I2C_PORT_THERMAL, TEMP_U116_REG_ADDR)
  
  const struct tmp006_t tmp006_sensors[TMP006_COUNT] = {
  	{"Charger", TEMP_U40_ADDR},
  	{"CPU", TEMP_U41_ADDR},
  	{"Left C", TEMP_U42_ADDR},
  	{"Right C", TEMP_U43_ADDR},
  	{"Right D", TEMP_U115_ADDR},
  	{"Left D", TEMP_U116_ADDR},
  };
  BUILD_ASSERT(ARRAY_SIZE(tmp006_sensors) == TMP006_COUNT);
  
  /* Temperature sensors data; must be in same order as enum temp_sensor_id. */
  const struct temp_sensor_t temp_sensors[] = {
  	{"PECI", TEMP_SENSOR_TYPE_CPU, peci_temp_sensor_get_val, 0, 2},
  	{"ECInternal", TEMP_SENSOR_TYPE_BOARD, chip_temp_sensor_get_val, 0, 4},
  	{"I2C-Charger-Die", TEMP_SENSOR_TYPE_BOARD, tmp006_get_val, 0, 7},
  	{"I2C-Charger-Object", TEMP_SENSOR_TYPE_CASE, tmp006_get_val, 1, 7},
  	{"I2C-CPU-Die", TEMP_SENSOR_TYPE_BOARD, tmp006_get_val, 2, 7},
  	{"I2C-CPU-Object", TEMP_SENSOR_TYPE_CASE, tmp006_get_val, 3, 7},
  	{"I2C-Left C-Die", TEMP_SENSOR_TYPE_BOARD, tmp006_get_val, 4, 7},
  	{"I2C-Left C-Object", TEMP_SENSOR_TYPE_CASE, tmp006_get_val, 5, 7},
  	{"I2C-Right C-Die", TEMP_SENSOR_TYPE_BOARD, tmp006_get_val, 6, 7},
  	{"I2C-Right C-Object", TEMP_SENSOR_TYPE_CASE, tmp006_get_val, 7, 7},
  	{"I2C-Right D-Die", TEMP_SENSOR_TYPE_BOARD, tmp006_get_val, 8, 7},
  	{"I2C-Right D-Object", TEMP_SENSOR_TYPE_CASE, tmp006_get_val, 9, 7},
  	{"I2C-Left D-Die", TEMP_SENSOR_TYPE_BOARD, tmp006_get_val, 10, 7},
  	{"I2C-Left D-Object", TEMP_SENSOR_TYPE_CASE, tmp006_get_val, 11, 7},
  	{"Battery", TEMP_SENSOR_TYPE_BATTERY, charge_temp_sensor_get_val, 0, 4},
  };
  BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);
  
  /* ALS instances. Must be in same order as enum als_id. */
  struct als_t als[] = {
  	{"ISL", isl29035_read_lux, 5},
  };
  BUILD_ASSERT(ARRAY_SIZE(als) == ALS_COUNT);
  
  
  /* Thermal limits for each temp sensor. All temps are in degrees K. Must be in
   * same order as enum temp_sensor_id. To always ignore any temp, use 0.
   */
  struct ec_thermal_config thermal_params[] = {
  	/* {Twarn, Thigh, Thalt}, fan_off, fan_max */
  	{{C_TO_K(95), C_TO_K(101), C_TO_K(104)},
  	 C_TO_K(55), C_TO_K(90)},		/* PECI */
  	{{0, 0, 0}, 0, 0},			/* EC */
  	{{0, 0, 0}, C_TO_K(41), C_TO_K(55)},	/* Charger die */
  	{{0, 0, 0}, 0, 0},
  	{{0, 0, 0}, C_TO_K(35), C_TO_K(49)},	/* CPU die */
  	{{0, 0, 0}, 0, 0},
  	{{0, 0, 0}, 0, 0},			/* Left C die */
  	{{0, 0, 0}, 0, 0},
  	{{0, 0, 0}, 0, 0},			/* Right C die */
  	{{0, 0, 0}, 0, 0},
  	{{0, 0, 0}, 0, 0},			/* Right D die */
  	{{0, 0, 0}, 0, 0},
  	{{0, 0, 0}, C_TO_K(43), C_TO_K(54)},	/* Left D die */
  	{{0, 0, 0}, 0, 0},
  	{{0, 0, 0}, 0, 0},			/* Battery */
  };
  BUILD_ASSERT(ARRAY_SIZE(thermal_params) == TEMP_SENSOR_COUNT);
  
  struct keyboard_scan_config keyscan_config = {
  	.output_settle_us = 40,
  	.debounce_down_us = 6 * MSEC,
  	.debounce_up_us = 30 * MSEC,
  	.scan_period_us = 1500,
  	.min_post_scan_delay_us = 1000,
  	.poll_timeout_us = SECOND,
  	.actual_key_mask = {
  		0x14, 0xff, 0xff, 0xff, 0xff, 0xf5, 0xff,
  		0xa4, 0xff, 0xf6, 0x55, 0xfa, 0xc8  /* full set */
  	},
  };
  
  /* Initialize board. */
  static void board_init(void)
  {
  	gpio_enable_interrupt(GPIO_PD_MCU_INT);
  }
  DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
  
  #ifdef CONFIG_BATTERY_PRESENT_CUSTOM
  /**
   * Physical check of battery presence.
   */
  enum battery_present battery_is_present(void)
  {
  	/*
  	 * This pin has a pullup, so if it's not completely pegged there's
  	 * something attached. Probably a battery.
  	 */
  	int analog_val = adc_read_channel(ADC_CH_BAT_TEMP);
  	return analog_val < (9 * ADC_READ_MAX / 10) ? BP_YES : BP_NO;
  }
  #endif
  
  static int discharging_on_ac;
  
  /**
   * Discharge battery when on AC power for factory test.
   */
  int board_discharge_on_ac(int enable)
  {
  	int rv = charger_discharge_on_ac(enable);
  
  	if (rv == EC_SUCCESS)
  		discharging_on_ac = enable;
  
  	return rv;
  }
  
  /**
   * Check if we are discharging while connected to AC
   */
  int board_is_discharging_on_ac(void)
  {
  	return discharging_on_ac;
  }
  
  /**
   * Reset PD MCU
   */
  void board_reset_pd_mcu(void)
  {
  	gpio_set_level(GPIO_USB_MCU_RST, 1);
  	usleep(100);
  	gpio_set_level(GPIO_USB_MCU_RST, 0);
  }
  
  /* Base Sensor mutex */
  static struct mutex g_base_mutex;
  
  /* Lid Sensor mutex */
  static struct mutex g_lid_mutex;
  
  /* kxcj9 local/private data */
  struct kxcj9_data g_kxcj9_data;
  
  /* lsm6ds0 local sensor data (per-sensor) */
  struct lsm6ds0_data g_saved_data[2];
  
  /* Four Motion sensors */
  /* 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)}
  };
  
  const matrix_3x3_t lid_standard_ref = {
  	{ 0,  FLOAT_TO_FP(1),  0},
  	{FLOAT_TO_FP(-1),  0,  0},
  	{ 0,  0, FLOAT_TO_FP(-1)}
  };
  
  struct motion_sensor_t motion_sensors[] = {
  	/*
  	 * Note: lsm6ds0: supports accelerometer and gyro sensor
  	 * Requirement: accelerometer sensor must init before gyro sensor
  	 * DO NOT change the order of the following table.
  	 */
  	{.name = "Base",
  	 .active_mask = SENSOR_ACTIVE_S0_S3_S5,
  	 .chip = MOTIONSENSE_CHIP_LSM6DS0,
  	 .type = MOTIONSENSE_TYPE_ACCEL,
  	 .location = MOTIONSENSE_LOC_BASE,
  	 .drv = &lsm6ds0_drv,
  	 .mutex = &g_base_mutex,
  	 .drv_data = &g_saved_data[0],
  	 .addr = LSM6DS0_ADDR1,
  	 .rot_standard_ref = &base_standard_ref,
  	 .default_config = {
  		 .odr = 119000,
  		 .range = 2,
  		 .ec_rate = SUSPEND_SAMPLING_INTERVAL,
  	 }
  	},
  
  	{.name = "Lid",
  	 .active_mask = SENSOR_ACTIVE_S0,
  	 .chip = MOTIONSENSE_CHIP_KXCJ9,
  	 .type = MOTIONSENSE_TYPE_ACCEL,
  	 .location = MOTIONSENSE_LOC_LID,
  	 .drv = &kxcj9_drv,
  	 .mutex = &g_lid_mutex,
  	 .drv_data = &g_kxcj9_data,
  	 .addr = KXCJ9_ADDR0,
  	 .rot_standard_ref = &lid_standard_ref,
  	 .default_config = {
  		 .odr = 100000,
  		 .range = 2,
  		 .ec_rate = SUSPEND_SAMPLING_INTERVAL,
  	 }
  	},
  
  	{.name = "Base Gyro",
  	 .active_mask = SENSOR_ACTIVE_S0,
  	 .chip = MOTIONSENSE_CHIP_LSM6DS0,
  	 .type = MOTIONSENSE_TYPE_GYRO,
  	 .location = MOTIONSENSE_LOC_BASE,
  	 .drv = &lsm6ds0_drv,
  	 .mutex = &g_base_mutex,
  	 .drv_data = &g_saved_data[1],
  	 .addr = LSM6DS0_ADDR1,
  	 .rot_standard_ref = NULL,
  	 .default_config = {
  		 .odr = 119000,
  		 .range = 2000,
  		 .ec_rate = SUSPEND_SAMPLING_INTERVAL,
  	 }
  	},
  
  };
  const unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
  
  /* Define the accelerometer orientation matrices. */
  const struct accel_orientation acc_orient = {
  	/* Hinge aligns with y axis. */
  	.rot_hinge_90 = {
  		{ FLOAT_TO_FP(1),  0,  0},
  		{ 0,  FLOAT_TO_FP(1),  0},
  		{ 0,  0,  FLOAT_TO_FP(1)}
  	},
  	.rot_hinge_180 = {
  		{ FLOAT_TO_FP(1),  0,  0},
  		{ 0,  FLOAT_TO_FP(1),  0},
  		{ 0,  0,  FLOAT_TO_FP(1)}
  	},
  	.hinge_axis = {0, 1, 0},
  };
  