1*91f16700Schasinglulu /* 2*91f16700Schasinglulu * Copyright (c) 2017 - 2020, Broadcom 3*91f16700Schasinglulu * 4*91f16700Schasinglulu * SPDX-License-Identifier: BSD-3-Clause 5*91f16700Schasinglulu */ 6*91f16700Schasinglulu 7*91f16700Schasinglulu #ifndef SPI_H 8*91f16700Schasinglulu #define SPI_H 9*91f16700Schasinglulu 10*91f16700Schasinglulu #include <stdint.h> 11*91f16700Schasinglulu 12*91f16700Schasinglulu #define SPI_XFER_BEGIN (1 << 0) /* Assert CS before transfer */ 13*91f16700Schasinglulu #define SPI_XFER_END (1 << 1) /* De-assert CS after transfer */ 14*91f16700Schasinglulu #define SPI_XFER_QUAD (1 << 2) 15*91f16700Schasinglulu 16*91f16700Schasinglulu int spi_init(void); 17*91f16700Schasinglulu int spi_claim_bus(void); 18*91f16700Schasinglulu void spi_release_bus(void); 19*91f16700Schasinglulu int spi_xfer(uint32_t bitlen, const void *dout, void *din, uint32_t flags); 20*91f16700Schasinglulu 21*91f16700Schasinglulu #endif /* _SPI_H_ */ 22