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66 lines
2.0 KiB
C
66 lines
2.0 KiB
C
// Copyright 2015-2020 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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/* Common header for ESP32-S2 ADC/DAC tests */
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/**
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* SPI DMA type.
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*/
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typedef enum {
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DMA_ONLY_ADC_INLINK = BIT(1), /*!<Select ADC-DMA config. */
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DMA_ONLY_DAC_OUTLINK = BIT(2), /*!<Select DAC-DMA config. */
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DMA_BOTH_ADC_DAC, /*!<Select DAC-DMA and ADC-DMA config. */
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#define DMA_BOTH_ADC_DAC (DMA_ONLY_ADC_INLINK | DMA_ONLY_DAC_OUTLINK)
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} spi_dma_link_type_t;
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/**
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* Register SPI-DMA interrupt handler.
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*
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* @param handler Handler.
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* @param handler_arg Handler parameter.
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* @param intr_mask DMA interrupt type mask.
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*/
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esp_err_t adc_dac_dma_isr_register(intr_handler_t handler, void* handler_arg, uint32_t intr_mask);
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/**
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* Deregister SPI-DMA interrupt handler.
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*
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* @param handler Handler.
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* @param handler_arg Handler parameter.
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*/
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esp_err_t adc_dac_dma_isr_deregister(intr_handler_t handler, void* handler_arg);
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/**
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* Reset DMA linker pointer and start DMA.
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*
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* @param type DMA linker type. See ``spi_dma_link_type_t``.
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* @param dma_addr DMA linker addr.
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* @param int_msk DMA interrupt type mask.
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*/
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void adc_dac_dma_linker_start(spi_dma_link_type_t type, void *dma_addr, uint32_t int_msk);
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/**
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* Stop DMA.
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*
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* @param type DMA linker type. See ``spi_dma_link_type_t``.
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*/
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void adc_dac_dma_linker_stop(spi_dma_link_type_t type);
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/**
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* Deinit SPI3 DMA. Disable interrupt, stop DMA trans.
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*/
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void adc_dac_dma_linker_deinit(void);
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