diff options
Diffstat (limited to 'include/drivers/brcm/spi.h')
-rw-r--r-- | include/drivers/brcm/spi.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/drivers/brcm/spi.h b/include/drivers/brcm/spi.h new file mode 100644 index 0000000..9d92d8c --- /dev/null +++ b/include/drivers/brcm/spi.h @@ -0,0 +1,21 @@ +/* + * 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_ */ |