Changeset 615

Timestamp:

Jan 15, 2019, 2:02:18 PM (6 years ago)

Author:

alain

Message:

introduce a SYNC_WRITE command in soclib_bdv driver cmd() function.

File:

• trunk/hal/tsar_mips32/drivers/soclib_bdv.c (modified) (4 diffs)

trunk/hal/tsar_mips32/drivers/soclib_bdv.c

@@ -111 +111 @@
 
     // select operation
-    if( cmd_type == IOC_WRITE ) op = BDV_OP_WRITE; 
-    else                        op = BDV_OP_READ;
+    if( (cmd_type == IOC_READ) || (cmd_type == IOC_SYNC_READ) ) op = BDV_OP_READ; 
+    else                                                        op = BDV_OP_WRITE;
 
     // set SOCLIB_BDV registers to configure the I/O operation
@@ -125 +125 @@
     //   that blocks and deschedules after launching the I/O transfer.
     //   The I/O operation status is reported in the command by the ISR.
-    // - for IOC_SYNC_READ command, this function is called by the client thread
-    //   that polls the BDV status register until I/O transfer completion.
-
-    if( cmd_type == IOC_SYNC_READ )                   // status polling policy
+    // - for IOC_SYNC_READ / IOC_SYNC_WRITE command, this function is called by the client
+    //   thread that polls the BDV status register until I/O transfer completion.
+
+    if( (cmd_type == IOC_SYNC_READ) || (cmd_type == IOC_SYNC_WRITE) )  // polling policy
     {
         // launch I/O operation on BDV device
@@ -138 +138 @@
             status = hal_remote_l32( XPTR( seg_cxy , seg_ptr + BDV_STATUS_REG ) );
 
-            if( status == BDV_READ_SUCCESS ) // successfully completed
+            if( (status == BDV_READ_SUCCESS) ||
+                (status == BDV_WRITE_SUCCESS) ) // successfully completed
             {
                 hal_remote_s32( XPTR( th_cxy , &th_ptr->ioc_cmd.error ) , 0 );
@@ -154 +155 @@
         }
     }
-    else                                            // descheduling + IRQ policy
+    else                                                     // descheduling + IRQ policy
     { 
         // enter critical section to atomically