blob: 9d92d8cfc35b6e4f6319bfdf523a571340caccb2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
|
/*
* 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_ */
|
