Initial Release

pio/spi/pio_spi.h

@@ -0,0 +1,24 @@
+/**
+ * Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#ifndef _PIO_SPI_H
+#define _PIO_SPI_H
+
+#include "hardware/pio.h"
+#include "spi.pio.h"
+
+typedef struct pio_spi_inst {
+    PIO pio;
+    uint sm;
+    uint cs_pin;
+} pio_spi_inst_t;
+
+void pio_spi_write8_blocking(const pio_spi_inst_t *spi, const uint8_t *src, size_t len);
+
+void pio_spi_read8_blocking(const pio_spi_inst_t *spi, uint8_t *dst, size_t len);
+
+void pio_spi_write8_read8_blocking(const pio_spi_inst_t *spi, uint8_t *src, uint8_t *dst, size_t len);
+
+#endif