/*
 * 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>

typedef enum {
  SpiPeriphClockAPB1,
  SpiPeriphClockAPB2
} SpiPeriphClock;

//! @internal
//! Get the nearest SPI prescaler. Updates bus_frequency with the actual frequency
//! @param bus_frequency the desired bus frequency
//! @param periph_clock The peripheral clock that is used.
uint16_t spi_find_prescaler(uint32_t bus_frequency, SpiPeriphClock periph_clock);