71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
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/****************************************************************************
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Copyright(c) 2019 by Aerospace C.Power (Chongqing) Microelectronics. ALL RIGHTS RESERVED.
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This Information is proprietary to Aerospace C.Power (Chongqing) Microelectronics and MAY NOT
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be copied by any method or incorporated into another program without
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the express written consent of Aerospace C.Power. This Information or any portion
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thereof remains the property of Aerospace C.Power. The Information contained herein
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is believed to be accurate and Aerospace C.Power assumes no responsibility or
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liability for its use in any way and conveys no license or title under
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any patent or copyright and makes no representation or warranty that this
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Information is free from patent or copyright infringement.
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****************************************************************************/
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#ifndef _IOT_SPI_DMA_API_H_
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#define _IOT_SPI_DMA_API_H_
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#include "os_types_api.h"
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#include "iot_pkt_api.h"
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#include "iot_spi_api.h"
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/**
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* @brief iot_spi_dma_h - SPI handle.
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*/
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typedef void* iot_spi_dma_h;
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/**
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* @brief iot_spi_dma_config_t - SPI configuration.
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*/
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typedef struct _iot_spi_dma_config_t_ {
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uint32_t freq; /* 1000000 -> 1MHZ */
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uint32_t role; /* Master or slaver. See SPI_MASTER / SPI_SLAVER. */
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iot_spi_gpio_sel_t gpio;
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} iot_spi_dma_config_t;
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/**
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* @brief iot_spi_dma_rcv_func - Function pointer to get received data from SPI.
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* @param p_buf: Pointer of a buffer holding data received.
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* @param len: Length of buffer.
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*/
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typedef void (*iot_spi_dma_rcv_func)(uint8_t *p_buf, uint32_t len);
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/**
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* @brief iot_spi_dma_open - Open a spi device.
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* @param dev: Device number. See enum spi_device_list.
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* @param p_func: Function pointer to receive data.
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* @return SPI handle.
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*/
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iot_spi_dma_h iot_spi_dma_open(uint32_t dev, iot_spi_dma_rcv_func p_func);
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/**
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* @brief iot_spi_dma_send - Send data to SPI.
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* @param spi_h: SPI handle.
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* @param p_pkt: Packet of data to send.
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* @return ERR_FAIL -- Operation failed.
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* @return ERR_OK -- Operation Successful.
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*/
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uint32_t iot_spi_dma_send(iot_spi_dma_h spi_h, iot_pkt_t *p_pkt);
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/**
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* @brief iot_spi_dma_config - Config SPI port.
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* @param spi_h: SPI handle.
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* @param p_cfg: Configuration.
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* @return ERR_FAIL -- Operation failed.
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* @return ERR_OK -- Operation Successful.
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*/
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uint32_t iot_spi_dma_config(iot_spi_dma_h spi_h, iot_spi_dma_config_t *p_cfg);
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#endif /* _IOT_SPI_DMA_API_H_ */
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