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-rw-r--r--src/avr25/spi_usi.c56
1 files changed, 0 insertions, 56 deletions
diff --git a/src/avr25/spi_usi.c b/src/avr25/spi_usi.c
deleted file mode 100644
index e63721a..0000000
--- a/src/avr25/spi_usi.c
+++ /dev/null
@@ -1,56 +0,0 @@
-#include "../../spi_usi.h"
-
-#if __AVR_ARCH__ == 25
-
-#ifdef IOE_SPI_USI_MASTER
-
-// TODO counter settings with interups
-inline void ioe_spi_usi_init(void) {
- USI_DIR_REG |= _BV(USI_USCK_PIN) | _BV(USI_DO_PIN);
- USI_OUT_REG |= _BV(USI_DI_PIN);
-
- 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) {
- USI_DIR_REG |= _BV(USI_DO_PIN);
- USI_OUT_REG |= _BV(USI_USCK_PIN) | _BV(USI_DI_PIN);
-
- USICR |= _BV(USIWM0) | _BV(USICS1) | _BV(USIOIE);
-}
-
-inline void ioe_spi_usi_expose(int8_t data) {
- USIDR = data;
-}
-
-inline void ioe_spi_usi_expect(void) {
- USISR |= _BV(USIOIF);
-}
-
-inline int 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);
-}
-
-#endif /* IOE_SPI_USI_MASTER */
-
-#endif /* __AVR_ARCH__ == 25 */