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- /*
- * Copyright (c) 2017 - 2020, Broadcom
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
- #ifndef SPI_H
- #define SPI_H
- #include <stdint.h>
- #define SPI_XFER_BEGIN (1 << 0) /* Assert CS before transfer */
- #define SPI_XFER_END (1 << 1) /* De-assert CS after transfer */
- #define SPI_XFER_QUAD (1 << 2)
- int spi_init(void);
- int spi_claim_bus(void);
- void spi_release_bus(void);
- int spi_xfer(uint32_t bitlen, const void *dout, void *din, uint32_t flags);
- #endif /* _SPI_H_ */
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