Zero-copy API for the MAC driver.

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4984 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 13 insertions, 4 deletions

diff --git a/os/hal/include/mac.h b/os/hal/include/mac.h
index 2903bd07c..763bc373e 100644
--- a/os/hal/include/mac.h
+++ b/os/hal/include/mac.h
@@ -45,8 +45,15 @@
 /**

  * @brief   Enables an event sources for incoming packets.

  */

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

+#define MAC_USE_ZERO_COPY           FALSE

+#endif

+

+/**

+ * @brief   Enables an event sources for incoming packets.

+ */

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

-#define MAC_USE_EVENTS          TRUE

+#define MAC_USE_EVENTS              TRUE

 #endif

 /** @} */

 

@@ -102,6 +109,7 @@ typedef struct MACDriver MACDriver;
 #define macGetReceiveEventSource(macp)  (&(macp)->rdevent)

 #endif

 

+#if !MAC_USE_ZERO_COPY || defined(__DOXYGEN__)

 /**

  * @brief   Writes to a transmit descriptor's stream.

  *

@@ -132,8 +140,9 @@ typedef struct MACDriver MACDriver;
  */

 #define macReadReceiveDescriptor(rdp, buf, size)                            \

     mac_lld_read_receive_descriptor(rdp, buf, size)

+#endif /* !MAC_USE_ZERO_COPY */

 

-#if MAC_SUPPORTS_ZERO_COPY || defined(__DOXYGEN__)

+#if MAC_USE_ZERO_COPY || defined(__DOXYGEN__)

 /**

  * @brief   Returns a pointer to the next transmit buffer in the descriptor

  *          chain.

@@ -154,7 +163,7 @@ typedef struct MACDriver MACDriver;
  * @api

  */

 #define macGetNextTransmitBuffer(tdp, size, sizep)                          \

-  mac_lld_get_next_transmit_buffer(tdp, bufp)

+  mac_lld_get_next_transmit_buffer(tdp, size, sizep)

 

 /**

  * @brief   Returns a pointer to the next receive buffer in the descriptor

@@ -172,7 +181,7 @@ typedef struct MACDriver MACDriver;
  */

 #define magGetNextReceiveBuffer(rdp, sizep)                                 \

   mac_lld_get_next_receive_buffer(rdp, sizep)

-#endif /* MAC_SUPPORTS_ZERO_COPY */

+#endif /* MAC_USE_ZERO_COPY */

 /** @} */

 

 /*===========================================================================*/