1 files changed, 0 insertions, 54 deletions
diff --git a/src/spi_usi.c b/src/spi_usi.c
deleted file mode 100644
index 8baa8e2..0000000
--- a/src/spi_usi.c
+++ /dev/null
@@ -1,54 +0,0 @@
-#include "../spi_usi.h"
-#include "../mcu/mcu_def.h"
-
-#ifdef IOE_SPI_USI_MASTER
-
-// TODO counter settings with interups
-inline void ioe_spi_usi_init(void) {
-    // Set USCK and DO as output
-    DDR_USI |= _BV(DD_USCK) | _BV(DD_DO);
-    // Set DI pull up resistor
-    PORT_USI |= _BV(PORT_DI);
-
-    USICR |= _BV(USIWM0) | _BV(USICS1) | _BV(USICLK);
-}
-
-inline int8_t ioe_spi_usi_transfer(int8_t d) {
-    USISR |= _BV(USIOIF);
-    USIDR = d;
-    do {
-        USICR |= _BV(USITC);
-    } while (!(USISR & _BV(USIOIF)));
-    return USIDR;
-}
-
-#else /* IOE_SPI_USI_MASTER */
-
-inline void ioe_spi_usi_init(void) {
-    // Set DO as output
-    DDR_USI |= _BV(DD_DO);
-    // Set USCK and DI pull up resistor
-    PORT_USI |= _BV(PORT_USCK) | _BV(PORT_DI);
-
-    USICR |= _BV(USIWM0) | _BV(USICS1) | _BV(USIOIE);
-}
-
-inline void ioe_spi_usi_expose(int8_t data) {
-    USIDR = data;
-}
-
-inline uint8_t ioe_spi_usi_busy(void) {
-    return USISR & 0x0F;
-}
-
-inline void ioe_spi_usi_join(void) {
-    while (ioe_spi_usi_busy()) {
-    }
-}
-
-SIGNAL(USI_OVF_vect) {
-    ioe_spi_usi_retrieve(USIDR);
-    USISR |= _BV(USIOIF);
-}
-
-#endif /* IOE_SPI_USI_MASTER */