1*e3ee7b7dSSheetal Tigadoli /* 2*e3ee7b7dSSheetal Tigadoli * Copyright (c) 2017 - 2020, Broadcom 3*e3ee7b7dSSheetal Tigadoli * 4*e3ee7b7dSSheetal Tigadoli * SPDX-License-Identifier: BSD-3-Clause 5*e3ee7b7dSSheetal Tigadoli */ 6*e3ee7b7dSSheetal Tigadoli 7*e3ee7b7dSSheetal Tigadoli #ifndef SPI_H 8*e3ee7b7dSSheetal Tigadoli #define SPI_H 9*e3ee7b7dSSheetal Tigadoli 10*e3ee7b7dSSheetal Tigadoli #include <stdint.h> 11*e3ee7b7dSSheetal Tigadoli 12*e3ee7b7dSSheetal Tigadoli #define SPI_XFER_BEGIN (1 << 0) /* Assert CS before transfer */ 13*e3ee7b7dSSheetal Tigadoli #define SPI_XFER_END (1 << 1) /* De-assert CS after transfer */ 14*e3ee7b7dSSheetal Tigadoli #define SPI_XFER_QUAD (1 << 2) 15*e3ee7b7dSSheetal Tigadoli 16*e3ee7b7dSSheetal Tigadoli int spi_init(void); 17*e3ee7b7dSSheetal Tigadoli int spi_claim_bus(void); 18*e3ee7b7dSSheetal Tigadoli void spi_release_bus(void); 19*e3ee7b7dSSheetal Tigadoli int spi_xfer(uint32_t bitlen, const void *dout, void *din, uint32_t flags); 20*e3ee7b7dSSheetal Tigadoli 21*e3ee7b7dSSheetal Tigadoli #endif /* _SPI_H_ */ 22