/* Copyright 2021 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. */ #include "fpsensor_detect.h" #include "gpio.h" #include "timer.h" enum fp_sensor_type get_fp_sensor_type(void) { return FP_SENSOR_TYPE_FPC; } enum fp_sensor_spi_select get_fp_sensor_spi_select(void) { enum fp_sensor_spi_select ret; gpio_set_level(GPIO_DIVIDER_HIGHSIDE, 1); usleep(1); switch (gpio_get_level(GPIO_FP_SPI_SEL)) { case 0: ret = FP_SENSOR_SPI_SELECT_DEVELOPMENT; break; case 1: ret = FP_SENSOR_SPI_SELECT_PRODUCTION; break; default: ret = FP_SENSOR_SPI_SELECT_UNKNOWN; break; } gpio_set_level(GPIO_DIVIDER_HIGHSIDE, 0); return ret; }