Moved remotely

git-svn-id: file:///srv/dev-disk-by-uuid-17e88007-4d0c-45e0-8757-cacfcc458630/repositories/svn/Diplomarbeit@113 9fe90eed-be63-e94b-8204-d34ff4c2ff93
2009-01-12 08:38:14 +00:00
parent 4e45654a5f
commit 6cc948eef8
204 changed files with 0 additions and 0 deletions
@@ -0,0 +1,78 @@
+/*****************************************************************************
+ *   irq.c: Interrupt handler C file for NXP LPC230x Family Microprocessors
+ *
+ *   Copyright(C) 2006, NXP Semiconductor
+ *   All rights reserved.
+ *
+ *   History
+ *   2006.07.13  ver 1.00    Prelimnary version, first Release
+ *
+******************************************************************************/
+#include "LPC23xx.h"
+#include "types.h"
+#include "irq.h"
+
+/* Initialize the interrupt controller */
+/******************************************************************************
+** Function name:   init_VIC
+**
+** Descriptions:    Initialize VIC interrupt controller.
+** parameters:      None
+** Returned value:    None
+**
+******************************************************************************/
+void init_VIC(void)
+{
+UINT32 i = 0;
+UINT32 *vect_addr, *vect_cntl;
+
+  /* initialize VIC*/
+  VICIntEnClr = 0xffffffff;
+  VICVectAddr = 0;
+  VICIntSelect = 0;
+
+  /* set all the vector and vector control register to 0 */
+  for ( i = 0; i < VIC_SIZE; i++ )
+  {
+    vect_addr = (UINT32 *)(VIC_BASE_ADDR + VECT_ADDR_INDEX + i*4);
+    vect_cntl = (UINT32 *)(VIC_BASE_ADDR + VECT_CNTL_INDEX + i*4);
+    *vect_addr = 0x0;
+    *vect_cntl = 0xF;
+  }
+  return;
+}
+
+/******************************************************************************
+** Function name:   install_irq
+**
+** Descriptions:    Install interrupt handler
+** parameters:      Interrupt number, interrupt handler address,
+**            interrupt priority
+** Returned value:    true or false, return false if IntNum is out of range
+**
+******************************************************************************/
+BOOLEAN install_irq( UINT32 IntNumber, void *HandlerAddr, UINT32 Priority )
+{
+UINT32 *vect_addr;
+UINT32 *vect_cntl;
+
+  VICIntEnClr = 1 << IntNumber; /* Disable Interrupt */
+  if ( IntNumber >= VIC_SIZE )
+  {
+    return ( FALSE );
+  }
+  else
+  {
+    /* find first un-assigned VIC address for the handler */
+    vect_addr = (UINT32 *)(VIC_BASE_ADDR + VECT_ADDR_INDEX + IntNumber*4);
+    vect_cntl = (UINT32 *)(VIC_BASE_ADDR + VECT_CNTL_INDEX + IntNumber*4);
+    *vect_addr = (UINT32)HandlerAddr;  /* set interrupt vector */
+    *vect_cntl = Priority;
+    VICIntEnable = 1 << IntNumber;  /* Enable Interrupt */
+    return( TRUE );
+  }
+}
+
+/******************************************************************************
+**                            End Of File
+******************************************************************************/