pebble/src/fw/drivers/fpc_pinstrap.h
2025-01-27 11:38:16 -08:00

31 lines
1.1 KiB
C

/*
* Copyright 2024 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <stdint.h>
//! @file fpc_pinstrap.h
//!
//! This file implements an API to read the pinstrap values for an attached FPC (flexible printed
//! circuit). These values are used for version identification so we can figure out which version
//! of FPC is connected to our main PCB.
#define FPC_PINSTRAP_NOT_AVAILABLE 0xff
//! @return uint8_t a value between 0 and 8 to represent the pinstrap value. If the pinstrap
//! value isn't valid on this platform, FPC_PINSTRAP_NOT_AVAILABLE is returned.
uint8_t fpc_pinstrap_get_value(void);