/* mbed Microcontroller Library
 * Copyright (c) 2022, STMicroelectronics
 * All rights reserved.
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 * 3. Neither the name of STMicroelectronics nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef USE_USER_DEFINED_HAL_ETH_MSPINIT

#include "stm32f7xx_hal.h"
#include "platform/mbed_critical.h"

/**
 * Override HAL Eth Init function
 */
void HAL_ETH_MspInit(ETH_HandleTypeDef *heth)
{
    GPIO_InitTypeDef GPIO_InitStructure;
    if (heth->Instance == ETH) {
        /* Disable DCache for STM32F7 family */
        core_util_critical_section_enter();
        SCB_DisableDCache();
        core_util_critical_section_exit();

        /* Enable GPIOs clocks */
        __HAL_RCC_GPIOA_CLK_ENABLE();
        __HAL_RCC_GPIOC_CLK_ENABLE();
        __HAL_RCC_GPIOG_CLK_ENABLE();

        /** ETH GPIO Configuration
          RMII_REF_CLK ----------------------> PA1
          RMII_MDIO -------------------------> PA2
          RMII_MDC --------------------------> PC1
          RMII_MII_CRS_DV -------------------> PA7
          RMII_MII_RXD0 ---------------------> PC4
          RMII_MII_RXD1 ---------------------> PC5
          RMII_MII_RXER ---------------------> none
          RMII_MII_TX_EN --------------------> PG11
          RMII_MII_TXD0 ---------------------> PG13
          RMII_MII_TXD1 ---------------------> PG14
         */
        /* Configure PA1, PA2 and PA7 */
        GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
        GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
        GPIO_InitStructure.Pull = GPIO_NOPULL;
        GPIO_InitStructure.Alternate = GPIO_AF11_ETH;
        GPIO_InitStructure.Pin = GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_7;
        HAL_GPIO_Init(GPIOA, &GPIO_InitStructure);

        /* Configure PC1, PC4 and PC5 */
        GPIO_InitStructure.Pin = GPIO_PIN_1 | GPIO_PIN_4 | GPIO_PIN_5;
        HAL_GPIO_Init(GPIOC, &GPIO_InitStructure);

        /* Configure PG11, PG13 and PG14 */
        GPIO_InitStructure.Pin = GPIO_PIN_11 | GPIO_PIN_13 | GPIO_PIN_14;
        HAL_GPIO_Init(GPIOG, &GPIO_InitStructure);

        /* Enable the Ethernet global Interrupt */
        HAL_NVIC_SetPriority(ETH_IRQn, 0x7, 0);
        HAL_NVIC_EnableIRQ(ETH_IRQn);

        /* Enable ETHERNET clock  */
        __HAL_RCC_ETH_CLK_ENABLE();
    }
}

/**
 * Override HAL Eth DeInit function
 */
void HAL_ETH_MspDeInit(ETH_HandleTypeDef *heth)
{
    if (heth->Instance == ETH) {
        /* Peripheral clock disable */
        __HAL_RCC_ETH_CLK_DISABLE();

        /** ETH GPIO Configuration
          RMII_REF_CLK ----------------------> PA1
          RMII_MDIO -------------------------> PA2
          RMII_MDC --------------------------> PC1
          RMII_MII_CRS_DV -------------------> PA7
          RMII_MII_RXD0 ---------------------> PC4
          RMII_MII_RXD1 ---------------------> PC5
          RMII_MII_RXER ---------------------> none
          RMII_MII_TX_EN --------------------> PG11
          RMII_MII_TXD0 ---------------------> PG13
          RMII_MII_TXD1 ---------------------> PG14
         */
        HAL_GPIO_DeInit(GPIOA, GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_7);
        HAL_GPIO_DeInit(GPIOC, GPIO_PIN_1 | GPIO_PIN_4 | GPIO_PIN_5);
        HAL_GPIO_DeInit(GPIOG, GPIO_PIN_11 | GPIO_PIN_13 | GPIO_PIN_14);

        /* Disable the Ethernet global Interrupt */
        NVIC_DisableIRQ(ETH_IRQn);
    }
}

#endif /* USE_USER_DEFINED_HAL_ETH_MSPINIT */

// Blank, non-weak-override function to make sure the linker pulls in this file
void stm32_eth_init_weak_symbol_helper()
{}