eos support

1 files changed, 32 insertions, 0 deletions

diff --git a/code/fe310/eos/spi.h b/code/fe310/eos/spi.h
new file mode 100644
index 0000000..88e54bb
--- /dev/null
+++ b/code/fe310/eos/spi.h
@@ -0,0 +1,32 @@
+#include <stdint.h>
+
+#include "encoding.h"
+#include "platform.h"
+
+#define SPI_MODE0               0x00
+#define SPI_MODE1               0x01
+#define SPI_MODE2               0x02
+#define SPI_MODE3               0x03
+
+#define SPI_SIZE_BUF            1500
+#define SPI_SIZE_CHUNK          4
+#define SPI_SIZE_BUFQ           4
+#define SPI_GPIO_CTS_OFFSET     PIN_2_OFFSET
+#define SPI_GPIO_RTS_OFFSET     PIN_3_OFFSET
+#define SPI_IOF_MASK            (((uint32_t)1 << IOF_SPI1_SCK) | ((uint32_t)1 << IOF_SPI1_MOSI) | ((uint32_t)1 << IOF_SPI1_MISO))
+
+typedef struct SPIBuffer {
+    unsigned char cmd;
+    unsigned char *buffer;
+    uint16_t len;
+    uint16_t len_rx;
+    uint16_t idx_tx;
+    uint16_t idx_rx;
+} SPIBuffer;
+
+typedef struct SPIBufQ {
+    uint8_t idx_r;
+    uint8_t idx_w;
+    unsigned char *array[SPI_SIZE_BUFQ];
+} SPIBufQ;
+