added mikrophone yocto layer; added esp32 driver;HEADmaster

1 files changed, 31 insertions, 0 deletions

diff --git a/yocto/esp32d/spi.h b/yocto/esp32d/spi.h
new file mode 100644
index 0000000..4d9ff86
--- /dev/null
+++ b/yocto/esp32d/spi.h
@@ -0,0 +1,31 @@
+#include <stdint.h>
+
+#define SPI_DEV             "/dev/spidev0"
+#define SPI_SPEED           10000000
+
+#define SPI_TUN_NAME        "tun0"
+
+#define SPI_GPIO_DEV        "/dev/gpiochip3"
+#define SPI_GPIO_CTS        28
+#define SPI_GPIO_RTS        25
+
+#define SPI_MTU             1500
+#define SPI_SIZE_HDR        3
+#define SPI_SIZE_BUF        (SPI_MTU + SPI_SIZE_HDR)
+#define SPI_SIZE_RECEIVE    16  /* guestimate on number of bytes for transaction initiated by falling RTS */
+
+#define SPI_SIZE_BUFQ       64
+#define SPI_SIZE_MSGQ_IN    32
+#define SPI_SIZE_MSGQ_OUT   32
+
+#define SPI_MTYPE_TUN       1
+
+#define SPI_OK              0
+#define SPI_ERR             -1
+#define SPI_ERR_OPEN        -10
+#define SPI_ERR_MSG         -11
+
+unsigned char *spi_alloc(void);
+void spi_free(unsigned char *buffer);
+int spi_xchg(unsigned char mtype, unsigned char *buffer, uint16_t len);
+int spi_init(void);
\ No newline at end of file