git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1181 35acf78f-673a-0410-8e92-d51de3d6d3f4

1 files changed, 25 insertions, 19 deletions

diff --git a/os/io/mac.c b/os/io/mac.c
index 823a1b4a7..e64f0bee0 100644
--- a/os/io/mac.c
+++ b/os/io/mac.c
@@ -28,11 +28,6 @@
 #include <mac.h>

 

 /**

- * @brief Interface status.
- */

-static enum {ifStopped = 0, ifStarted} state;

-

-/**

  * @brief Transmit descriptors counter semaphore.
  */

 static Semaphore tdsem, rdsem;

@@ -42,13 +37,22 @@ static Semaphore tdsem, rdsem;
  */

 void macInit(void) {

 

-  chSemInit(&tdsem, MAC_TRANSMIT_DESCRIPTORS);

-  chSemInit(&rdsem, 0);

-  state = ifStopped;

   mac_lld_init();

 }

 

 /**

+ * @brief Initialize the standard part of a @p MACDriver structure.
+ *

+ * @param[in] macp pointer to the @p MACDriver object

+ */

+void macObjectInit(MACDriver *macp) {

+

+  chSemInit(&macp->md_tdsem, MAC_TRANSMIT_DESCRIPTORS);

+  chSemInit(&macp->md_rdsem, 0);

+  macp->md_state = ifStopped;

+}

+

+/**

  * @brief MAC address setup.

  *

  * @param[in] macp pointer to the @p MACDriver object
@@ -61,7 +65,7 @@ void macInit(void) {
  */

 void macSetAddress(MACDriver *macp, uint8_t *p) {

 

-  if (state == ifStopped)

+  if (macp->md_state == ifStopped)

     mac_lld_set_address(macp, p);

 }

 

@@ -74,11 +78,11 @@ void macSetAddress(MACDriver *macp, uint8_t *p) {
 void macStart(MACDriver *macp) {

 

   chSysLock();

-  if (state == ifStarted) {

+  if (macp->md_state == ifStarted) {

     chSysUnlock();

     return;

   }

-  state = ifStarted;

+  macp->md_state = ifStarted;

   chSysUnlock();

   mac_lld_start(macp);

 }

@@ -91,13 +95,13 @@ void macStart(MACDriver *macp) {
 void macStop(MACDriver *macp) {

 

   chSysLock();

-  if (state == ifStopped) {

+  if (macp->md_state == ifStopped) {

     chSysUnlock();

     return;

   }

-  state = ifStopped;

-  chSemResetI(&tdsem, MAC_TRANSMIT_DESCRIPTORS);

-  chSemResetI(&rdsem, 0);

+  macp->md_state = ifStopped;

+  chSemResetI(&macp->md_tdsem, MAC_TRANSMIT_DESCRIPTORS);

+  chSemResetI(&macp->md_rdsem, 0);

   chSchRescheduleS();

   chSysUnlock();

   mac_lld_stop(macp);

@@ -124,7 +128,8 @@ MACTransmitDescriptor *macWaitTransmitDescriptor(MACDriver *macp,
 

   chSysLock();

 

-  if ((state == ifStopped) || (chSemWaitTimeoutS(&tdsem, time) != RDY_OK))

+  if ((macp->md_state == ifStopped) ||

+      (chSemWaitTimeoutS(&tdsem, time) != RDY_OK))

     tdp = NULL;

   else

     tdp = max_lld_get_transmit_descriptor(macp);

@@ -143,7 +148,7 @@ MACTransmitDescriptor *macWaitTransmitDescriptor(MACDriver *macp,
 void macReleaseTransmitDescriptor(MACDriver *macp,

                                   MACTransmitDescriptor *tdp) {

 

-  if (state == ifStarted)

+  if (macp->md_state == ifStarted)

     mac_lld_release_transmit_descriptor(macp, tdp);

 }

 

@@ -169,7 +174,8 @@ MACReceiveDescriptor *macWaitReceiveDescriptor(MACDriver *macp,
 

   chSysLock();

 

-  if ((state == ifStopped) || (chSemWaitTimeoutS(&rdsem, time) != RDY_OK))

+  if ((macp->md_state == ifStopped) ||

+      (chSemWaitTimeoutS(&rdsem, time) != RDY_OK))

     rdp = NULL;

   else

     rdp = max_lld_get_receive_descriptor(macp);

@@ -189,7 +195,7 @@ MACReceiveDescriptor *macWaitReceiveDescriptor(MACDriver *macp,
 void macReleaseReceiveDescriptor(MACDriver *macp,

                                  MACReceiveDescriptor *rdp) {

 

-  if (state == ifStarted)

+  if (macp->md_state == ifStarted)

     mac_lld_release_receive_descriptor(macp, rdp);

 }