diff options
Diffstat (limited to 'os/hal/platforms/AVR/spi_lld.h')
| -rw-r--r-- | os/hal/platforms/AVR/spi_lld.h | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/os/hal/platforms/AVR/spi_lld.h b/os/hal/platforms/AVR/spi_lld.h index 136ca3ba1..ef4953881 100644 --- a/os/hal/platforms/AVR/spi_lld.h +++ b/os/hal/platforms/AVR/spi_lld.h @@ -36,6 +36,10 @@ /*===========================================================================*/
/** @brief SPI Mode (Polarity/Phase) */
+#define SPI_ROLE_MASTER 0
+#define SPI_ROLE_SLAVE 1
+
+/** @brief SPI Mode (Polarity/Phase) */
#define SPI_CPOL0_CPHA0 0
#define SPI_CPOL0_CPHA1 1
#define SPI_CPOL1_CPHA0 2
@@ -71,8 +75,8 @@ * @brief SPI driver enable switch.
* @details If set to @p TRUE the support for SPI1 is included.
*/
-#if !defined(USE_AVR_SPI) || defined(__DOXYGEN__)
-#define USE_AVR_SPI FALSE
+#if !defined(AVR_SPI_USE_SPI1) || defined(__DOXYGEN__)
+#define AVR_SPI_USE_SPI1 FALSE
#endif
/** @} */
@@ -104,6 +108,10 @@ typedef void (*spicallback_t)(SPIDriver *spip); */
typedef struct {
/**
+ * @brief Role: Master or Slave
+ */
+ uint8_t role;
+ /**
* @brief Port used of Slave Select
*/
ioportid_t ssport;
@@ -166,7 +174,7 @@ struct SPIDriver { /**
* @brief Pointer to the buffer with data to send.
*/
- const uint8_t *txbuf;
+ uint8_t *txbuf;
/**
* @brief Number of bytes of data to send.
*/
@@ -197,8 +205,8 @@ struct SPIDriver { /* External declarations. */
/*===========================================================================*/
-#if USE_AVR_SPI && !defined(__DOXYGEN__)
-extern SPIDriver SPID;
+#if AVR_SPI_USE_SPI1 && !defined(__DOXYGEN__)
+extern SPIDriver SPID1;
#endif
#ifdef __cplusplus
@@ -214,7 +222,14 @@ extern "C" { const void *txbuf, void *rxbuf);
void spi_lld_send(SPIDriver *spip, size_t n, const void *txbuf);
void spi_lld_receive(SPIDriver *spip, size_t n, void *rxbuf);
+
+#if AVR_SPI_USE_16BIT_POLLED_EXCHANGE
uint16_t spi_lld_polled_exchange(SPIDriver *spip, uint16_t frame);
+#else
+ uint8_t spi_lld_polled_exchange(SPIDriver *spip, uint8_t frame);
+#endif
+
+
#ifdef __cplusplus
}
#endif
|