text: /* Copyright 2019 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.
   */
  
  /* Garg board-specific configuration */
  
  #include "adc.h"
  #include "adc_chip.h"
  #include "battery.h"
  #include "button.h"
  #include "charge_manager.h"
  #include "charge_state.h"
  #include "common.h"
  #include "cros_board_info.h"
  #include "driver/accel_kionix.h"
  #include "driver/accelgyro_bmi_common.h"
  #include "driver/charger/bd9995x.h"
  #include "driver/ppc/nx20p348x.h"
  #include "driver/tcpm/anx7447.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 "i2c.h"
  #include "keyboard_scan.h"
  #include "lid_switch.h"
  #include "motion_sense.h"
  #include "power.h"
  #include "power_button.h"
  #include "switch.h"
  #include "system.h"
  #include "tablet_mode.h"
  #include "tcpci.h"
  #include "temp_sensor.h"
  #include "thermistor.h"
  #include "usb_mux.h"
  #include "usbc_ppc.h"
  #include "util.h"
  
  #define CPRINTSUSB(format, args...) cprints(CC_USBCHARGE, format, ## args)
  #define CPRINTFUSB(format, args...) cprintf(CC_USBCHARGE, format, ## args)
  
  #define USB_PD_PORT_ANX7447	0
  #define USB_PD_PORT_PS8751	1
  
  static uint8_t sku_id;
  
  /*
   * We have total 30 pins for keyboard connecter {-1, -1} mean
   * the N/A pin that don't consider it and reserve index 0 area
   * that we don't have pin 0.
   */
  const int keyboard_factory_scan_pins[][2] = {
  		{-1, -1}, {0, 5}, {1, 1}, {1, 0}, {0, 6},
  		{0, 7}, {-1, -1}, {-1, -1}, {1, 4}, {1, 3},
  		{-1, -1}, {1, 6}, {1, 7}, {3, 1}, {2, 0},
  		{1, 5}, {2, 6}, {2, 7}, {2, 1}, {2, 4},
  		{2, 5}, {1, 2}, {2, 3}, {2, 2}, {3, 0},
  		{-1, -1}, {0, 4}, {-1, -1}, {8, 2}, {-1, -1},
  		{-1, -1},
  };
  
  const int keyboard_factory_scan_pins_used =
  			ARRAY_SIZE(keyboard_factory_scan_pins);
  
  static void ppc_interrupt(enum gpio_signal signal)
  {
  	switch (signal) {
  	case GPIO_USB_PD_C0_INT_ODL:
  		nx20p348x_interrupt(0);
  		break;
  
  	case GPIO_USB_PD_C1_INT_ODL:
  		nx20p348x_interrupt(1);
  		break;
  
  	default:
  		break;
  	}
  }
  
  /* Must come after other header files and GPIO interrupts*/
  #include "gpio_list.h"
  
  /* ADC channels */
  const struct adc_t adc_channels[] = {
  	[ADC_TEMP_SENSOR_AMB] = {
  		"TEMP_AMB", NPCX_ADC_CH0, ADC_MAX_VOLT, ADC_READ_MAX+1, 0},
  	[ADC_TEMP_SENSOR_CHARGER] = {
  		"TEMP_CHARGER", NPCX_ADC_CH1, ADC_MAX_VOLT, ADC_READ_MAX+1, 0},
  	/* Vbus sensing (1/10 voltage divider). */
  	[ADC_VBUS_C0] = {
  		"VBUS_C0", NPCX_ADC_CH9, ADC_MAX_VOLT*10, ADC_READ_MAX+1, 0},
  	[ADC_VBUS_C1] = {
  		"VBUS_C1", NPCX_ADC_CH4, ADC_MAX_VOLT*10, ADC_READ_MAX+1, 0},
  };
  BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
  
  const struct temp_sensor_t temp_sensors[] = {
  	[TEMP_SENSOR_BATTERY] = {.name = "Battery",
  				 .type = TEMP_SENSOR_TYPE_BATTERY,
  				 .read = charge_get_battery_temp,
  				 .idx = 0},
  	[TEMP_SENSOR_AMBIENT] = {.name = "Ambient",
  				 .type = TEMP_SENSOR_TYPE_BOARD,
  				 .read = get_temp_3v3_51k1_47k_4050b,
  				 .idx = ADC_TEMP_SENSOR_AMB},
  	[TEMP_SENSOR_CHARGER] = {.name = "Charger",
  				 .type = TEMP_SENSOR_TYPE_BOARD,
  				 .read = get_temp_3v3_13k7_47k_4050b,
  				 .idx = ADC_TEMP_SENSOR_CHARGER},
  };
  BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);
  
  /* 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)}
  };
  
  /* sensor private data */
  static struct kionix_accel_data g_kx022_data;
  static struct bmi_drv_data_t g_bmi160_data;
  
  /* Drivers */
  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_SENSOR,
  	 .i2c_spi_addr_flags = KX022_ADDR1_FLAGS,
  	 .rot_standard_ref = NULL, /* Identity matrix. */
  	 .default_range = 2, /* g */
  	 .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_SENSOR,
  	 .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 = 13000 | ROUND_UP_FLAG,
  			.ec_rate = 100 * MSEC,
  		 },
  		 /* Sensor on for 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_S3,
  	 .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_SENSOR,
  	 .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,
  	},
  };
  
  unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
  
  static int board_is_convertible(void)
  {
  	/*
  	 * Garg360: 37, 38
  	 * Unprovisioned: 255
  	 */
  	return sku_id == 37 || sku_id == 38 || sku_id == 255;
  }
  
  static void board_update_sensor_config_from_sku(void)
  {
  	if (board_is_convertible()) {
  		motion_sensor_count = ARRAY_SIZE(motion_sensors);
  		/* Enable Base Accel interrupt */
  		gpio_enable_interrupt(GPIO_BASE_SIXAXIS_INT_L);
  	} else {
  		motion_sensor_count = 0;
  		gmr_tablet_switch_disable();
  		/* Base accel is not stuffed, don't allow line to float */
  		gpio_set_flags(GPIO_BASE_SIXAXIS_INT_L,
  			       GPIO_INPUT | GPIO_PULL_DOWN);
  	}
  }
  
  /* Read CBI from i2c eeprom and initialize variables for board variants */
  static void cbi_init(void)
  {
  	uint32_t val;
  
  	if (cbi_get_sku_id(&val) != EC_SUCCESS || val > UINT8_MAX)
  		return;
  	sku_id = val;
  	CPRINTSUSB("SKU: %d", sku_id);
  
  	board_update_sensor_config_from_sku();
  }
  DECLARE_HOOK(HOOK_INIT, cbi_init, HOOK_PRIO_INIT_I2C + 1);
  
  __override uint32_t board_override_feature_flags0(uint32_t flags0)
  {
  	/*
  	 * Remove keyboard backlight feature for devices that don't support it.
  	 */
  	if (sku_id == 255)
  		return flags0;
  	else
  		return (flags0 & ~EC_FEATURE_MASK_0(EC_FEATURE_PWM_KEYB));
  }
  
  void board_hibernate_late(void)
  {
  	int i;
  
  	const uint32_t hibernate_pins[][2] = {
  		/* Turn off LEDs before going to hibernate */
  		{GPIO_BAT_LED_BLUE_L, GPIO_INPUT | GPIO_PULL_UP},
  		{GPIO_BAT_LED_ORANGE_L, GPIO_INPUT | GPIO_PULL_UP},
  	};
  
  	for (i = 0; i < ARRAY_SIZE(hibernate_pins); ++i)
  		gpio_set_flags(hibernate_pins[i][0], hibernate_pins[i][1]);
  }
  
  #ifndef TEST_BUILD
  /* This callback disables keyboard when convertibles are fully open */
  void lid_angle_peripheral_enable(int enable)
  {
  	/*
  	 * If the lid is in tablet position via other sensors,
  	 * ignore the lid angle, which might be faulty then
  	 * disable keyboard.
  	 */
  	if (tablet_get_mode())
  		enable = 0;
  	if (board_is_convertible())
  		keyboard_scan_enable(enable, KB_SCAN_DISABLE_LID_ANGLE);
  }
  #endif
  
  void board_overcurrent_event(int port, int is_overcurrented)
  {
  	/* Check that port number is valid. */
  	if ((port < 0) || (port >= CONFIG_USB_PD_PORT_MAX_COUNT))
  		return;
  
  	/* Note that the level is inverted because the pin is active low. */
  	gpio_set_level(GPIO_USB_C_OC, !is_overcurrented);
  }
  
  __override uint8_t board_get_usb_pd_port_count(void)
  {
  	/* HDMI SKU has one USB PD port */
  	if (sku_id == 9 || sku_id == 19 || sku_id == 50 || sku_id == 52)
  		return CONFIG_USB_PD_PORT_MAX_COUNT - 1;
  	return CONFIG_USB_PD_PORT_MAX_COUNT;
  }
  