1 files changed, 122 insertions, 0 deletions
diff --git a/board/ampton/board.c b/board/ampton/board.c
new file mode 100644
index 0000000000..0552be05a6
--- /dev/null
+++ b/board/ampton/board.c
@@ -0,0 +1,122 @@
+/* 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.
+ */
+
+/* Ampton/Apel board-specific configuration */
+
+#include "adc.h"
+#include "adc_chip.h"
+#include "button.h"
+#include "charge_state.h"
+#include "common.h"
+#include "driver/bc12/bq24392.h"
+#include "driver/ppc/sn5s330.h"
+#include "driver/tcpm/it83xx_pd.h"
+#include "driver/tcpm/ps8xxx.h"
+#include "driver/usb_mux_it5205.h"
+#include "extpower.h"
+#include "gpio.h"
+#include "hooks.h"
+#include "i2c.h"
+#include "intc.h"
+#include "keyboard_scan.h"
+#include "lid_switch.h"
+#include "power.h"
+#include "power_button.h"
+#include "spi.h"
+#include "switch.h"
+#include "system.h"
+#include "tcpci.h"
+#include "tablet_mode.h"
+#include "temp_sensor.h"
+#include "thermistor.h"
+#include "uart.h"
+#include "usb_mux.h"
+#include "usbc_ppc.h"
+#include "util.h"
+
+static void ppc_interrupt(enum gpio_signal signal)
+{
+	if (signal == GPIO_USB_C0_PD_INT_ODL)
+		sn5s330_interrupt(0);
+	else if (signal == GPIO_USB_C1_PD_INT_ODL)
+		sn5s330_interrupt(1);
+}
+
+#include "gpio_list.h" /* Must come after other header files. */
+
+/******************************************************************************/
+/* ADC channels */
+const struct adc_t adc_channels[] = {
+	/* Vbus C0 sensing (10x voltage divider). PPVAR_USB_C0_VBUS */
+	[ADC_VBUS_C0] = {.name = "VBUS_C0",
+			 .factor_mul = 10 * ADC_MAX_MVOLT,
+			 .factor_div = ADC_READ_MAX + 1,
+			 .shift = 0,
+			 .channel = CHIP_ADC_CH13},
+	/* Vbus C1 sensing (10x voltage divider). SUB_EC_ADC */
+	[ADC_VBUS_C1] = {.name = "VBUS_C1",
+			 .factor_mul = 10 * ADC_MAX_MVOLT,
+			 .factor_div = ADC_READ_MAX + 1,
+			 .shift = 0,
+			 .channel = CHIP_ADC_CH14},
+	/* Convert to raw mV for thermistor table lookup */
+	[ADC_TEMP_SENSOR_AMB] = {.name = "TEMP_AMB",
+			 .factor_mul = ADC_MAX_MVOLT,
+			 .factor_div = ADC_READ_MAX + 1,
+			 .shift = 0,
+			 .channel = CHIP_ADC_CH3},
+	/* Convert to raw mV for thermistor table lookup */
+	[ADC_TEMP_SENSOR_CHARGER] = {.name = "TEMP_CHARGER",
+			 .factor_mul = ADC_MAX_MVOLT,
+			 .factor_div = ADC_READ_MAX + 1,
+			 .shift = 0,
+			 .channel = CHIP_ADC_CH5},
+};
+BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
+
+static int read_charger_temp(int idx, int *temp_ptr)
+{
+	if (!gpio_get_level(GPIO_AC_PRESENT))
+		return EC_ERROR_NOT_POWERED;
+	return get_temp_3v3_13k7_47k_4050b(idx, temp_ptr);
+}
+
+const struct temp_sensor_t temp_sensors[] = {
+	[TEMP_SENSOR_BATTERY] = {.name = "Battery",
+				 .type = TEMP_SENSOR_TYPE_BATTERY,
+				 .read = charge_get_battery_temp,
+				 .action_delay_sec = 1},
+	[TEMP_SENSOR_AMBIENT] = {.name = "Ambient",
+				 .type = TEMP_SENSOR_TYPE_BOARD,
+				 .read = get_temp_3v3_51k1_47k_4050b,
+				 .idx = ADC_TEMP_SENSOR_AMB,
+				 .action_delay_sec = 5},
+	[TEMP_SENSOR_CHARGER] = {.name = "Charger",
+				 .type = TEMP_SENSOR_TYPE_BOARD,
+				 .read = read_charger_temp,
+				 .idx = ADC_TEMP_SENSOR_CHARGER,
+				 .action_delay_sec = 1},
+};
+BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);
+
+void board_hibernate_late(void)
+{
+	/*
+	 * Set KSO/KSI pins to GPIO input function to disable keyboard scan
+	 * while hibernating. This also prevent leakage current caused
+	 * by internal pullup of keyboard scan module.
+	 */
+	gpio_set_flags_by_mask(GPIO_KSO_H, 0xff, GPIO_INPUT);
+	gpio_set_flags_by_mask(GPIO_KSO_L, 0xff, GPIO_INPUT);
+	gpio_set_flags_by_mask(GPIO_KSI, 0xff, GPIO_INPUT);
+}
+
+/* TODO(b/115501243): Ampton/Apel: implement motion sensors in EC code */
+
+void board_overcurrent_event(int port)
+{
+	/* TODO(b/78344554): pass this signal upstream once hardware reworked */
+	cprints(CC_USBPD, "p%d: overcurrent!", port);
+}