2008-05-06 Ray Xu <rayx.cn@gmail.com>

	* Makefile.am, configure.ac, preinstall.am, s3c2400/include/s3c2400.h:
	Add CPU type s3c2410. Add a new s3c24xx common file shared between
	s3c2400 and s3c2410. Most content is moved from s3c2400 now. Some
	were changed to include <s3c24xx.h> instead of <s3c2400.h>.
	* s3c2410/include/s3c2410.h, s3c2410/irq/bsp_irq_asm.S,
	s3c2410/irq/irq.h, s3c24xx/clock/clockdrv.c, s3c24xx/clock/support.c,
	s3c24xx/include/s3c24xx.h, s3c24xx/irq/bsp_irq_init.c,
	s3c24xx/irq/irq.c, s3c24xx/irq/irq.h, s3c24xx/timer/timer.c: New files.

1 files changed, 110 insertions, 0 deletions

diff --git a/c/src/lib/libcpu/arm/s3c24xx/irq/irq.c b/c/src/lib/libcpu/arm/s3c24xx/irq/irq.c
new file mode 100644
index 0000000000..d64ace0f63
--- /dev/null
+++ b/c/src/lib/libcpu/arm/s3c24xx/irq/irq.c
@@ -0,0 +1,110 @@
+/* irq.c
+ *
+ *  This file contains the implementation of the function described in irq.h
+ *
+ *  CopyRight (C) 2000 Canon Research France SA.
+ *  Emmanuel Raguet,  mailto:raguet@crf.canon.fr
+ *
+ *  The license and distribution terms for this file may be
+ *  found in found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+
+#include <bsp.h>
+#include <irq.h>
+#include <rtems/score/thread.h>
+#include <rtems/score/apiext.h>
+#include <s3c24xx.h>
+
+/*
+ * This function check that the value given for the irq line
+ * is valid.
+ */
+
+static int isValidInterrupt(int irq)
+{
+    if ( (irq < 0) || (irq > BSP_MAX_INT)) {
+        return 0;
+    }
+
+    return 1;
+}
+
+/*
+ * ------------------- RTEMS Single Irq Handler Mngt Routines ----------------
+ */
+
+int BSP_install_rtems_irq_handler  (const rtems_irq_connect_data* irq)
+{
+    rtems_irq_hdl *HdlTable;
+    rtems_interrupt_level level;
+
+    if (!isValidInterrupt(irq->name)) {
+        return 0;
+    }
+
+    /*
+     * Check if default handler is actually connected. If not issue an error.
+     */
+    HdlTable = (rtems_irq_hdl *)VECTOR_TABLE;
+    if (*(HdlTable + irq->name) != default_int_handler) {
+        return 0;
+    }
+
+    _CPU_ISR_Disable(level);
+
+    /*
+     * store the new handler
+     */
+    *(HdlTable + irq->name) = irq->hdl;
+
+    /*
+     * Enable interrupt on device
+     */
+    if(irq->on)
+    {
+        irq->on(irq);
+    }
+
+    _CPU_ISR_Enable(level);
+
+    return 1;
+}
+
+int BSP_remove_rtems_irq_handler  (const rtems_irq_connect_data* irq)
+{
+    rtems_irq_hdl *HdlTable;
+    rtems_interrupt_level level;
+
+    if (!isValidInterrupt(irq->name)) {
+        return 0;
+    }
+
+    /*
+     * Check if the handler is actually connected. If not issue an error.
+     */
+    HdlTable = (rtems_irq_hdl *)VECTOR_TABLE;
+    if (*(HdlTable + irq->name) != irq->hdl) {
+        return 0;
+    }
+    _CPU_ISR_Disable(level);
+
+    /*
+     * Disable interrupt on device
+     */
+    if(irq->off) {
+        irq->off(irq);
+    }
+
+    /*
+     * restore the default irq value
+     */
+    *(HdlTable + irq->name) = default_int_handler;
+
+    _CPU_ISR_Enable(level);
+
+    return 1;
+}