43 lines
1.5 KiB
C
43 lines
1.5 KiB
C
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/*
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* Copyright (c) 2006-2024, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2024/04/05 flyingcys first version
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*/
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#ifndef __DRV_SDHCI_H__
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#define __DRV_SDHCI_H__
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#include "mmio.h"
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#include "dw_sdmmc.h"
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#include "dw_mmc_reg.h"
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#ifndef BIT
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#define BIT(nr) (UINT64_C(1) << (nr))
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#endif
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typedef enum {
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SDIF_CHAIN_DMA_MODE = 0x01U, ///< one descriptor with one buffer,but one descriptor point to another
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SDIF_DUAL_DMA_MODE = 0x02U, ///< dual mode is one descriptor with two buffer
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} sdhci_dma_mode_e;
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typedef struct {
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bool enable_fix_burst_len; ///< fix burst len enable/disable flag,When set, the AHB will
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/// use only SINGLE, INCR4, INCR8 or INCR16 during start of
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/// normal burst transfers. When reset, the AHB will use SINGLE
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/// and INCR burst transfer operations
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sdhci_dma_mode_e mode; ///< define the DMA mode */
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uint32_t *dma_des_buffer_start_addr; ///< internal DMA descriptor start address
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uint32_t dma_des_buffer_len; /// internal DMA buffer descriptor buffer len ,user need to pay attention to the
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/// dma descriptor buffer length if it is bigger enough for your transfer
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uint8_t dma_dws_skip_len; ///< define the descriptor skip length ,the length between two descriptor
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/// this field is special for dual DMA mode
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} sdhci_dma_config_t;
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#endif /* __DRV_SDHCI_H__ */
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