73 lines
2.8 KiB
C
73 lines
2.8 KiB
C
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/**************************************************************************//**
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*
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* @copyright (C) 2020 Nuvoton Technology Corp. All rights reserved.
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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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* 2020-9-7 Philo First version
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*
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******************************************************************************/
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#ifndef __DRV_PDMA_H__
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#define __DRV_PDMA_H__
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#include <rtconfig.h>
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#include <rtthread.h>
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#include "NuMicro.h"
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#ifndef NU_PDMA_SGTBL_POOL_SIZE
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#define NU_PDMA_SGTBL_POOL_SIZE (16)
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#endif
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#define NU_PDMA_CAP_NONE (0 << 0)
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#define NU_PDMA_EVENT_ABORT (1 << 0)
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#define NU_PDMA_EVENT_TRANSFER_DONE (1 << 1)
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#define NU_PDMA_EVENT_TIMEOUT (1 << 2)
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#define NU_PDMA_EVENT_ALL (NU_PDMA_EVENT_ABORT | NU_PDMA_EVENT_TRANSFER_DONE | NU_PDMA_EVENT_TIMEOUT)
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#define NU_PDMA_EVENT_MASK NU_PDMA_EVENT_ALL
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#define NU_PDMA_UNUSED (-1)
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#define NU_PDMA_SG_LIMITED_DISTANCE ((PDMA_DSCT_NEXT_NEXT_Msk>>PDMA_DSCT_NEXT_NEXT_Pos)+1)
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#define NU_PDMA_MAX_TXCNT ((PDMA_DSCT_CTL_TXCNT_Msk>>PDMA_DSCT_CTL_TXCNT_Pos) + 1)
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typedef enum
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{
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eMemCtl_SrcFix_DstFix,
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eMemCtl_SrcFix_DstInc,
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eMemCtl_SrcInc_DstFix,
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eMemCtl_SrcInc_DstInc,
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eMemCtl_Undefined = (-1)
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} nu_pdma_memctrl_t;
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typedef DSCT_T *nu_pdma_desc_t;
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typedef void (*nu_pdma_cb_handler_t)(void *, uint32_t);
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int nu_pdma_channel_allocate(int32_t i32PeripType);
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rt_err_t nu_pdma_channel_free(int i32ChannID);
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rt_err_t nu_pdma_callback_register(int i32ChannID, nu_pdma_cb_handler_t pfnHandler, void *pvUserData, uint32_t u32EventFilter);
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rt_err_t nu_pdma_transfer(int i32ChannID, uint32_t u32DataWidth, uint32_t u32AddrSrc, uint32_t u32AddrDst, int32_t i32TransferCnt, uint32_t u32IdleTimeout_us);
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int nu_pdma_transferred_byte_get(int32_t i32ChannID, int32_t i32TriggerByteLen);
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void nu_pdma_channel_terminate(int i32ChannID);
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nu_pdma_memctrl_t nu_pdma_channel_memctrl_get(int i32ChannID);
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rt_err_t nu_pdma_channel_memctrl_set(int i32ChannID, nu_pdma_memctrl_t eMemCtrl);
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nu_pdma_cb_handler_t nu_pdma_callback_hijack(int i32ChannID, nu_pdma_cb_handler_t *ppfnHandler_Hijack,
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void **ppvUserData_Hijack, uint32_t *pu32EventFilter_Hijack);
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// For scatter-gather DMA
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rt_err_t nu_pdma_desc_setup(int i32ChannID, nu_pdma_desc_t dma_desc, uint32_t u32DataWidth, uint32_t u32AddrSrc, uint32_t u32AddrDst, int32_t TransferCnt, nu_pdma_desc_t next);
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rt_err_t nu_pdma_sg_transfer(int i32ChannID, nu_pdma_desc_t head, uint32_t u32IdleTimeout_us);
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rt_err_t nu_pdma_sgtbls_allocate(nu_pdma_desc_t *ppsSgtbls, int num);
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void nu_pdma_sgtbls_free(nu_pdma_desc_t *ppsSgtbls, int num);
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// For memory actor
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void *nu_pdma_memcpy(void *dest, void *src, unsigned int count);
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rt_size_t nu_pdma_mempush(void *dest, void *src, uint32_t data_width, unsigned int transfer_count);
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#endif // __DRV_PDMA_H___
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