Changeset 448 for soft/giet_vm/giet_drivers/cma_driver.c

Timestamp:

Nov 11, 2014, 4:10:53 PM (10 years ago)

Author:

alain

Message:

Simplifying the NIC and CMA drivers.
Complex functionnalities have been moved to the sys_handler.c file.

File:

• soft/giet_vm/giet_drivers/cma_driver.c (modified) (3 diffs)

soft/giet_vm/giet_drivers/cma_driver.c

@@ -34 +34 @@
 
 ////////////////////////////////////////////////////
-void _cma_start_channel( unsigned int       channel,
+void _cma_channel_start( unsigned int       channel,
                          unsigned long long src_paddr,
                          unsigned int       src_nbufs,
@@ -53 +53 @@
 
 //////////////////////////////////////////////
-void _cma_stop_channel( unsigned int channel )
+void _cma_channel_stop( unsigned int channel )
 {
-    _cma_set_register( channel, CHBUF_RUN      , 0 );
+    _cma_set_register( channel, CHBUF_RUN, 0 );
 }
 
@@ -63 +63 @@
                unsigned int channel )
 {
-    _puts("\n[GIET ERROR] _cma_isr() not implemented\n");
-    _exit();
+    // get CMA channel status
+    unsigned int status = _cma_get_register( channel, CHBUF_STATUS );
+
+    if (status == CHANNEL_SRC_DESC_ERROR )
+        _printf("\n[CMA WARNING] CMA channel %d blocked at cycle %d : "
+                "impossible access to source chbuf descriptor\n", 
+                channel, _get_proctime() );
+
+    else if (status == CHANNEL_SRC_DATA_ERROR )
+        _printf("\n[CMA WARNING] CMA channel %d blocked at cycle %d : "
+                "impossible access to source data buffer\n", 
+                channel, _get_proctime() );
+
+    else if (status == CHANNEL_DST_DESC_ERROR )
+        _printf("\n[CMA WARNING] CMA channel %d blocked at cycle %d : "
+                "impossible access to destination chbuf descriptor\n", 
+                channel, _get_proctime() );
+
+    else if (status == CHANNEL_DST_DATA_ERROR )
+        _printf("\n[CMA WARNING] CMA channel %d blocked at cycle %d : "
+                "impossible access to destination data buffer\n", 
+                channel, _get_proctime() );
+
+    else
+        _printf("\n[CMA WARNING] CMA channel %d : "
+                "... strange IRQ received, but channel not blocked...", 
+                channel, _get_proctime() );
+    
+    // acknowledge IRQ
+    _cma_set_register( channel, CHBUF_RUN, 0 );
 }