| /* | |
| * 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_ */ |