diff options
Diffstat (limited to 'board/hatch_fp/fpsensor_detect_rw.c')
-rw-r--r-- | board/hatch_fp/fpsensor_detect_rw.c | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/board/hatch_fp/fpsensor_detect_rw.c b/board/hatch_fp/fpsensor_detect_rw.c deleted file mode 100644 index 274cfee054..0000000000 --- a/board/hatch_fp/fpsensor_detect_rw.c +++ /dev/null @@ -1,38 +0,0 @@ -/* 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) -{ - enum fp_sensor_type ret; - - gpio_set_level(GPIO_DIVIDER_HIGHSIDE, 1); - usleep(1); - switch (gpio_get_level(GPIO_FP_SENSOR_SEL)) { - case 0: - ret = FP_SENSOR_TYPE_ELAN; - break; - case 1: - ret = FP_SENSOR_TYPE_FPC; - break; - default: - ret = FP_SENSOR_TYPE_UNKNOWN; - break; - } - /* We leave GPIO_DIVIDER_HIGHSIDE enabled, since the dragonclaw - * development board use it to enable the AND gate (U10) to CS. - * Production boards could disable this to save power since it's - * only needed for initial detection on those boards. - */ - return ret; -} - -enum fp_sensor_spi_select get_fp_sensor_spi_select(void) -{ - return FP_SENSOR_SPI_SELECT_PRODUCTION; -} |