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72 lines
2.5 KiB
C
72 lines
2.5 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/*
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* Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef BSP_ST_SDMMC_CONFIG_H
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#define BSP_ST_SDMMC_CONFIG_H
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#include <stdbool.h>
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#include <stdint.h>
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#include <stm32h7/hal.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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struct st_sdmmc_config {
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/**
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* Number of data lines. Can be 1, 4 or 8
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*/
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uint8_t data_lines;
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/**
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* Polarity of the DIR pins. See "SDMMC_POWER" register in the
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* STM32H7xx data sheet for that. If you don't have the lines, you can
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* use any value.
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*/
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bool dirpol;
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/**
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* Possible OCR voltages. Should be something like
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* MMC_OCR_290_300 | MMC_OCR_300_310 depending on card supply.
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*/
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uint32_t ocr_voltage;
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};
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/**
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* Get hardware specific configuration for SDMMC.
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*
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* This function can be overwritten in the application to adapt to another board
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* configuration. The sdmmc_base points to the base address of the SDMMC
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* instance. The cfg structure is set to zero before calling this function so
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* that only the necessary fields have to be initialized.
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*/
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void st_sdmmc_get_config(uintptr_t sdmmc_base, struct st_sdmmc_config *cfg);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* BSP_ST_SDMMC_CONFIG_H */
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