cpu_sdmmc.h

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/*
 * Copyright (C) 2023 Gunar Schorcht
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#pragma once

 
#include <stdint.h>
 
#include "periph/cpu_dma.h"
#include "periph/cpu_gpio.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
/* Declare the types for SDIO/SDMMC only if the STM32 has SDIO/SDMMC peripheral */
#if defined(SDMMC_POWER_PWRCTRL) || defined(SDIO_POWER_PWRCTRL)
 
/* For F1, F2, F4 and L1 the SDMMC interface is called SDIO, define used
 * symbols for source code compatibility */
#if !defined(SDMMC1) && !DOXYGEN
#define SDMMC_TypeDef   SDIO_TypeDef
#endif

#define SDMMC_CPU_DMA_ALIGNMENT     4

#define SDMMC_CPU_DMA_REQUIREMENTS  __attribute__((aligned(SDMMC_CPU_DMA_ALIGNMENT)))

typedef struct {
    gpio_t pin;             
#ifndef CPU_FAM_STM32F1
    gpio_af_t af;           
#endif
} sdmmc_pin_t;

typedef struct {
    SDMMC_TypeDef *dev;         
    uint8_t bus;                
    uint32_t rcc_mask;          
    gpio_t cd;                  
    int cd_active;              
    gpio_mode_t cd_mode;        
    sdmmc_pin_t clk;            
    sdmmc_pin_t cmd;            
    sdmmc_pin_t dat0;           
    sdmmc_pin_t dat1;           
    sdmmc_pin_t dat2;           
    sdmmc_pin_t dat3;           
#if IS_USED(MODULE_PERIPH_SDMMC_8BIT)
    sdmmc_pin_t dat4;           
    sdmmc_pin_t dat5;           
    sdmmc_pin_t dat6;           
    sdmmc_pin_t dat7;           
#endif
#if IS_USED(MODULE_PERIPH_DMA)
    dma_t dma;                  
    uint8_t dma_chan;           
#endif
    uint8_t irqn;               
} sdmmc_conf_t;
 
#endif /* defined(SDMMC_POWER_PWRCTRL) || defined(SDIO_POWER_PWRCTRL) */
 
#ifdef __cplusplus
}
#endif