Fixed bug 3084764. More enhancements to the SPI driver.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@2244 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 14 insertions, 1 deletions

diff --git a/os/hal/include/spi.h b/os/hal/include/spi.h
index b09e33089..e6fbe7c90 100644
--- a/os/hal/include/spi.h
+++ b/os/hal/include/spi.h
@@ -39,7 +39,16 @@
 /*===========================================================================*/

 

 /**

- * @brief   Enables the mutual exclusion APIs on the SPI bus.

+ * @brief   Enables the @p spiWait() API.

+ * @note    Disabling this option saves both code and data space.

+ */

+#if !defined(SPI_USE_WAIT) || defined(__DOXYGEN__)

+#define SPI_USE_WAIT                TRUE

+#endif

+

+/**

+ * @brief   Enables the @p spiAcquireBus() and @p spiReleaseBus() APIs.

+ * @note    Disabling this option saves both code and data space.

  */

 #if !defined(SPI_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)

 #define SPI_USE_MUTUAL_EXCLUSION    TRUE

@@ -218,6 +227,10 @@ extern "C" {
   void spiExchange(SPIDriver *spip, size_t n, const void *txbuf, void *rxbuf);

   void spiSend(SPIDriver *spip, size_t n, const void *txbuf);

   void spiReceive(SPIDriver *spip, size_t n, void *rxbuf);

+#if SPI_USE_WAIT

+  void _spi_wakeup(SPIDriver *spip, mag_t msg);

+  msg_t spiWait(SPIDriver *spip);

+#endif /* SPI_USE_WAIT */

 #if SPI_USE_MUTUAL_EXCLUSION

   void spiAcquireBus(SPIDriver *spip);

   void spiReleaseBus(SPIDriver *spip);