2007-11-30 Till Straumann <strauman@slac.stanford.edu>

	* irq/irq.h, irq/irq.c (removed), irq/no_pic.c (added),
	irq/irq_init.c, Makefile.am: The PSIM BSP (currently)
	has no support for an interrupt controller or interrupts
	other than the decrementer. Removed all definitions for PCI + ISA
	interrupts and all unnecessary code (leftovers from copying).
	Separated PIC-specific bits into 'no_pic.c' which allows us
	to use 'irq.c' (i.e., more code) from 'shared'.

6 files changed, 83 insertions, 467 deletions

diff --git a/c/src/lib/libbsp/powerpc/psim/ChangeLog b/c/src/lib/libbsp/powerpc/psim/ChangeLog
index 4af5cba2ce..2600ffd5ba 100644
--- a/c/src/lib/libbsp/powerpc/psim/ChangeLog
+++ b/c/src/lib/libbsp/powerpc/psim/ChangeLog
@@ -1,4 +1,13 @@
 2007-11-30	Till Straumann <strauman@slac.stanford.edu>
+	* irq/irq.h, irq/irq.c (removed), irq/no_pic.c (added),
+	irq/irq_init.c, Makefile.am: The PSIM BSP (currently)
+	has no support for an interrupt controller or interrupts
+	other than the decrementer. Removed all definitions for PCI + ISA
+	interrupts and all unnecessary code (leftovers from copying).
+	Separated PIC-specific bits into 'no_pic.c' which allows us
+	to use 'irq.c' (i.e., more code) from 'shared'.
+
+2007-11-30	Till Straumann <strauman@slac.stanford.edu>
 
 	* startup/linkcmds.c, start/start.S: call __eabi() from start.S
 	and make sure linkcmds defines _SDA_BASE_ + _SDA2_BASE_ so that
diff --git a/c/src/lib/libbsp/powerpc/psim/Makefile.am b/c/src/lib/libbsp/powerpc/psim/Makefile.am
index 523b5bd48b..e781ce6911 100644
--- a/c/src/lib/libbsp/powerpc/psim/Makefile.am
+++ b/c/src/lib/libbsp/powerpc/psim/Makefile.am
@@ -65,7 +65,7 @@ consoleio_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
 include_bsp_HEADERS = irq/irq.h
 
 noinst_PROGRAMS += irq.rel
-irq_rel_SOURCES = irq/irq.c irq/irq_init.c ../shared/irq/irq_asm.S
+irq_rel_SOURCES = ../shared/irq/irq.c irq/irq_init.c ../shared/irq/irq_asm.S irq/no_pic.c
 irq_rel_CPPFLAGS = $(AM_CPPFLAGS)
 irq_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
 
diff --git a/c/src/lib/libbsp/powerpc/psim/irq/irq.c b/c/src/lib/libbsp/powerpc/psim/irq/irq.c
deleted file mode 100644
index 259105897f..0000000000
--- a/c/src/lib/libbsp/powerpc/psim/irq/irq.c
+++ /dev/null
@@ -1,338 +0,0 @@
-/*
- *
- *  This file contains the implementation of the function described in irq.h
- *
- *  Copyright (C) 1998, 1999 valette@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.
- *
- *  irq.c,v 1.4.2.8 2003/09/04 18:45:20 joel Exp
- */
-  
-#include <rtems/system.h>
-#include <bsp.h>
-#include <bsp/irq.h>
-#if 0
-#include <bsp/VME.h>
-#include <bsp/openpic.h>
-#endif
-#include <stdlib.h>
-
-#include <rtems/score/thread.h>
-#include <rtems/score/apiext.h>
-#include <libcpu/raw_exception.h>
-#include <libcpu/io.h>
-#include <bsp/vectors.h>
-
-#include <rtems/bspIo.h> /* for printk */
-#define RAVEN_INTR_ACK_REG 0xfeff0030
-
-/*
- * pointer to the mask representing the additionnal irq vectors
- * that must be disabled when a particular entry is activated.
- * They will be dynamically computed from teh prioruty table given
- * in BSP_rtems_irq_mngt_set();
- * CAUTION : this table is accessed directly by interrupt routine
- * 	     prologue.
- */
-rtems_i8259_masks 	irq_mask_or_tbl[BSP_IRQ_NUMBER];
-/*
- * default handler connected on each irq after bsp initialization
- */
-static rtems_irq_connect_data	default_rtems_entry;
-
-/*
- * location used to store initial tables used for interrupt
- * management.
- */
-static rtems_irq_global_settings* 	internal_config;
-static rtems_irq_connect_data*		rtems_hdl_tbl;
-
-/*
- * Check if IRQ is an ISA IRQ
- */
-static inline int is_isa_irq(const rtems_irq_number irqLine)
-{
-  return (((int) irqLine <= BSP_ISA_IRQ_MAX_OFFSET) &
-	  ((int) irqLine >= BSP_ISA_IRQ_LOWEST_OFFSET)
-	 );
-}
-
-/*
- * Check if IRQ is an OPENPIC IRQ
- */
-static inline int is_pci_irq(const rtems_irq_number irqLine)
-{
-  return (((int) irqLine <= BSP_PCI_IRQ_MAX_OFFSET) &
-	  ((int) irqLine >= BSP_PCI_IRQ_LOWEST_OFFSET)
-	 );
-}
-
-/*
- * Check if IRQ is a Porcessor IRQ
- */
-static inline int is_processor_irq(const rtems_irq_number irqLine)
-{
-  return (((int) irqLine <= BSP_PROCESSOR_IRQ_MAX_OFFSET) &
-	  ((int) irqLine >= BSP_PROCESSOR_IRQ_LOWEST_OFFSET)
-	 );
-}
-
-
-/*
- * ------------------------ RTEMS Irq helper functions ----------------
- */
- 
-/*
- * This function check that the value given for the irq line
- * is valid.
- */
-
-static int isValidInterrupt(int irq)
-{
-  if ( (irq < BSP_LOWEST_OFFSET) || (irq > BSP_MAX_OFFSET))
-    return 0;
-  return 1;
-}
-
-
-/*
- * ------------------------ RTEMS Shared Irq Handler Mngt Routines ----------------
- */
-int BSP_install_rtems_shared_irq_handler  (const rtems_irq_connect_data* irq)
-{
-  printk("BSP_insall_rtems_shared_irq_handler Not supported in psim\n");
-  return 0;
-}
-
-
-/*
- * ------------------------ RTEMS Single Irq Handler Mngt Routines ----------------
- */
-
-int BSP_install_rtems_irq_handler  (const rtems_irq_connect_data* irq)
-{
-    rtems_interrupt_level       level;
-  
-    if (!isValidInterrupt(irq->name)) {
-      printk("Invalid interrupt vector %d\n",irq->name);
-      return 0;
-    }
-    /*
-     * Check if default handler is actually connected. If not issue an error.
-     * You must first get the current handler via i386_get_current_idt_entry
-     * and then disconnect it using i386_delete_idt_entry.
-     * RATIONALE : to always have the same transition by forcing the user
-     * to get the previous handler before accepting to disconnect.
-     */
-    rtems_interrupt_disable(level);
-    if (rtems_hdl_tbl[irq->name].hdl != default_rtems_entry.hdl) {
-      rtems_interrupt_enable(level);
-      printk("IRQ vector %d already connected\n",irq->name);
-      return 0;
-    }
-
-    /*
-     * store the data provided by user
-     */
-    rtems_hdl_tbl[irq->name] = *irq;
-    rtems_hdl_tbl[irq->name].next_handler = (void *)-1;
-    
-    if (is_isa_irq(irq->name)) {
-      printk("What's a isa_irq on psim?");
-    }
-
-    if (is_processor_irq(irq->name)) {
-      /*
-       * Enable exception at processor level
-       */
-    }
-    /*
-     * Enable interrupt on device
-     */
-	if (irq->on)
-    	irq->on(irq);
-    
-    rtems_interrupt_enable(level);
-
-    return 1;
-}
-
-
-int BSP_get_current_rtems_irq_handler	(rtems_irq_connect_data* irq)
-{
-    rtems_interrupt_level       level;
-
-    if (!isValidInterrupt(irq->name)) {
-      return 0;
-    }
-    rtems_interrupt_disable(level);
-      *irq = rtems_hdl_tbl[irq->name];
-    rtems_interrupt_enable(level);
-    return 1;
-}
-
-int BSP_remove_rtems_irq_handler  (const rtems_irq_connect_data* irq)
-{
-    rtems_irq_connect_data *pchain= NULL, *vchain = NULL;
-    rtems_interrupt_level   level;
-  
-    if (!isValidInterrupt(irq->name)) {
-      return 0;
-    }
-    /*
-     * Check if default handler is actually connected. If not issue an error.
-     * You must first get the current handler via i386_get_current_idt_entry
-     * and then disconnect it using i386_delete_idt_entry.
-     * RATIONALE : to always have the same transition by forcing the user
-     * to get the previous handler before accepting to disconnect.
-     */
-    rtems_interrupt_disable(level);
-    if (rtems_hdl_tbl[irq->name].hdl != irq->hdl) {
-      rtems_interrupt_enable(level);
-      return 0;
-    }
-
-    if( (int)rtems_hdl_tbl[irq->name].next_handler != -1 )
-    {
-       int found = 0;
-
-       for( (pchain= NULL, vchain = &rtems_hdl_tbl[irq->name]);
-            (vchain->hdl != default_rtems_entry.hdl);
-            (pchain= vchain, vchain = (rtems_irq_connect_data*)vchain->next_handler) )
-       {
-          if( vchain->hdl == irq->hdl )
-          {
-             found= -1; break;
-          }
-       }
-
-       if( !found )
-       {
-          rtems_interrupt_enable(level);
-          return 0;
-       }
-    }
-    else
-    {
-       if (rtems_hdl_tbl[irq->name].hdl != irq->hdl) 
-       {
-         rtems_interrupt_enable(level);
-         return 0;
-       }
-    }
-
-    if (is_isa_irq(irq->name)) {
-      printk("isa irq on psim?");
-    }
-    if (is_processor_irq(irq->name)) {
-      /*
-       * disable exception at processor level
-       */
-    }    
-
-    /*
-     * Disable interrupt on device
-     */
-	if (irq->off)
-    	irq->off(irq);
-
-    /*
-     * restore the default irq value
-     */
-    if( !vchain )
-    {
-       /* single handler vector... */
-       rtems_hdl_tbl[irq->name] = default_rtems_entry;
-    }
-    else
-    {
-       if( pchain )
-       {
-          /* non-first handler being removed */
-          pchain->next_handler = vchain->next_handler;
-       }
-       else
-       {
-          /* first handler isn't malloc'ed, so just overwrite it.  Since
-          the contents of vchain are being struct copied, vchain itself
-          goes away */
-          rtems_hdl_tbl[irq->name]= *vchain;
-       }
-       free(vchain);
-    }
-
-    rtems_interrupt_enable(level);
-
-    return 1;
-}
-
-/*
- * ------------------------ RTEMS Global Irq Handler Mngt Routines ----------------
- */
-
-int BSP_rtems_irq_mngt_set(rtems_irq_global_settings* config)
-{
-   /*
-    * Store various code accelerators
-    */
-    internal_config 		= config;
-    default_rtems_entry 	= config->defaultEntry;
-    rtems_hdl_tbl 		= config->irqHdlTbl;
-    
-    return 1;
-}
-
-int BSP_rtems_irq_mngt_get(rtems_irq_global_settings** config)
-{
-    *config = internal_config;
-    return 0;
-}    
-
-int _BSP_vme_bridge_irq = -1;
- 
-unsigned BSP_spuriousIntr = 0;
-
-/*
- * High level IRQ handler called from shared_raw_irq_code_entry
- */
-void C_dispatch_irq_handler (CPU_Interrupt_frame *frame, unsigned int excNum)
-{
-  register unsigned msr;
-  register unsigned new_msr;
-
-  if (excNum == ASM_DEC_VECTOR) {
-    _CPU_MSR_GET(msr);
-    new_msr = msr | MSR_EE;
-    _CPU_MSR_SET(new_msr);
-    
-    rtems_hdl_tbl[BSP_DECREMENTER].hdl(rtems_hdl_tbl[BSP_DECREMENTER].handle);
-
-    _CPU_MSR_SET(msr);
-    return;
-    
-  }
-}
-    
-    
-  
-void _ThreadProcessSignalsFromIrq (BSP_Exception_frame* ctx)
-{
-  /*
-   * Process pending signals that have not already been
-   * processed by _Thread_Displatch. This happens quite
-   * unfrequently : the ISR must have posted an action
-   * to the current running thread.
-   */
-  if ( _Thread_Do_post_task_switch_extension ||
-       _Thread_Executing->do_post_task_switch_extension ) {
-    _Thread_Executing->do_post_task_switch_extension = FALSE;
-    _API_extensions_Run_postswitch();
-  }
-  /*
-   * I plan to process other thread related events here.
-   * This will include DEBUG session requested from keyboard...
-   */
-}
diff --git a/c/src/lib/libbsp/powerpc/psim/irq/irq.h b/c/src/lib/libbsp/powerpc/psim/irq/irq.h
index f30739d3a1..a0d5f27d50 100644
--- a/c/src/lib/libbsp/powerpc/psim/irq/irq.h
+++ b/c/src/lib/libbsp/powerpc/psim/irq/irq.h
@@ -24,40 +24,7 @@
 #define BSP_SHARED_HANDLER_SUPPORT      1
 #include <rtems/irq.h>
 
-/*
- * 8259 edge/level control definitions at VIA
- */
-#define ISA8259_M_ELCR 		0x4d0
-#define ISA8259_S_ELCR 		0x4d1
-
-#define ELCRS_INT15_LVL         0x80
-#define ELCRS_INT14_LVL         0x40
-#define ELCRS_INT13_LVL         0x20
-#define ELCRS_INT12_LVL         0x10
-#define ELCRS_INT11_LVL         0x08
-#define ELCRS_INT10_LVL         0x04
-#define ELCRS_INT9_LVL          0x02
-#define ELCRS_INT8_LVL          0x01
-#define ELCRM_INT7_LVL          0x80
-#define ELCRM_INT6_LVL          0x40
-#define ELCRM_INT5_LVL          0x20
-#define ELCRM_INT4_LVL          0x10
-#define ELCRM_INT3_LVL          0x8
-#define ELCRM_INT2_LVL          0x4
-#define ELCRM_INT1_LVL          0x2
-#define ELCRM_INT0_LVL          0x1
-
 #define BSP_ASM_IRQ_VECTOR_BASE 0x0
-    /* PIC's command and mask registers */
-#define PIC_MASTER_COMMAND_IO_PORT		0x20	/* Master PIC command register */
-#define PIC_SLAVE_COMMAND_IO_PORT		0xa0	/* Slave PIC command register */
-#define PIC_MASTER_IMR_IO_PORT			0x21	/* Master PIC Interrupt Mask Register */
-#define PIC_SLAVE_IMR_IO_PORT		 	0xa1	/* Slave PIC Interrupt Mask Register */
-
-    /* Command for specific EOI (End Of Interrupt): Interrupt acknowledge */
-#define PIC_EOSI	0x60	/* End of Specific Interrupt (EOSI) */
-#define	SLAVE_PIC_EOSI  0x62	/* End of Specific Interrupt (EOSI) for cascade */
-#define PIC_EOI		0x20	/* Generic End of Interrupt (EOI) */
 
 #ifndef ASM
 
@@ -65,75 +32,27 @@
  * Symblolic IRQ names and related definitions.
  */
 
-  /* Base vector for our ISA IRQ handlers. */
-#define BSP_ISA_IRQ_VECTOR_BASE		(BSP_ASM_IRQ_VECTOR_BASE)
-  /*
-   * ISA IRQ handler related definitions
-   */
-#define BSP_ISA_IRQ_NUMBER    	 	(16)
-#define BSP_ISA_IRQ_LOWEST_OFFSET	(0)
-#define BSP_ISA_IRQ_MAX_OFFSET	 	(BSP_ISA_IRQ_LOWEST_OFFSET + BSP_ISA_IRQ_NUMBER-1)
-  /*
-   * PCI IRQ handlers related definitions
-   * CAUTION : BSP_PCI_IRQ_LOWEST_OFFSET should be equal to OPENPIC_VEC_SOURCE
-   */
-#define BSP_PCI_IRQ_NUMBER		(16)
-#define BSP_PCI_IRQ_LOWEST_OFFSET	(BSP_ISA_IRQ_NUMBER)
-#define BSP_PCI_IRQ_MAX_OFFSET	 	(BSP_PCI_IRQ_LOWEST_OFFSET+BSP_PCI_IRQ_NUMBER-1)
-  /*
-   * PowerPc exceptions handled as interrupt where a rtems managed interrupt
-   * handler might be connected
-   */
-#define BSP_PROCESSOR_IRQ_NUMBER	(1)
-#define BSP_PROCESSOR_IRQ_LOWEST_OFFSET	(BSP_PCI_IRQ_MAX_OFFSET + 1)
+#define BSP_PROCESSOR_IRQ_NUMBER	    (1)
+#define BSP_PROCESSOR_IRQ_LOWEST_OFFSET	(0)
 #define BSP_PROCESSOR_IRQ_MAX_OFFSET	(BSP_PROCESSOR_IRQ_LOWEST_OFFSET+BSP_PROCESSOR_IRQ_NUMBER-1)
-  /* Misc vectors for OPENPIC irqs (IPI, timers)
-   */
-#define BSP_MISC_IRQ_NUMBER		(8)
-#define BSP_MISC_IRQ_LOWEST_OFFSET	(BSP_PROCESSOR_IRQ_MAX_OFFSET + 1)
-#define BSP_MISC_IRQ_MAX_OFFSET		(BSP_MISC_IRQ_LOWEST_OFFSET+BSP_MISC_IRQ_NUMBER-1)
+
   /*
    * Summary
    */
-#define BSP_IRQ_NUMBER		 	(BSP_MISC_IRQ_MAX_OFFSET + 1)
-#define BSP_LOWEST_OFFSET		(BSP_ISA_IRQ_LOWEST_OFFSET)
-#define BSP_MAX_OFFSET			(BSP_MISC_IRQ_MAX_OFFSET)
-    /*
-     * Some ISA IRQ symbolic name definition
-     */	       
-#define BSP_ISA_PERIODIC_TIMER      	(0)
-
-#define BSP_ISA_KEYBOARD          	(1)
+#define BSP_IRQ_NUMBER		 	(BSP_PROCESSOR_IRQ_MAX_OFFSET + 1)
+#define BSP_LOWEST_OFFSET		(BSP_PROCESSOR_IRQ_LOWEST_OFFSET)
+#define BSP_MAX_OFFSET			(BSP_IRQ_NUMBER - 1)
 
-#define BSP_UART_COM2_IRQ		(3)
-
-#define BSP_UART_COM1_IRQ		(4)
-
-#define BSP_ISA_RT_TIMER1	      	(8)
-  
-#define BSP_ISA_RT_TIMER3		(10)
-    /*
-     * Some PCI IRQ symbolic name definition
-     */
-#define BSP_PCI_IRQ0			(BSP_PCI_IRQ_LOWEST_OFFSET)
-#define BSP_PCI_ISA_BRIDGE_IRQ		(BSP_PCI_IRQ0)
-    /*
-     * Some Processor execption handled as rtems IRQ symbolic name definition
-     */
+  /*
+   * Some Processor execption handled as rtems IRQ symbolic name definition
+   */
 #define BSP_DECREMENTER			(BSP_PROCESSOR_IRQ_LOWEST_OFFSET)
 
-typedef unsigned short rtems_i8259_masks;
-extern  volatile rtems_i8259_masks i8259s_cache;
+/* dummy routines - there is no PIC */
+void BSP_enable_irq_at_pic(const rtems_irq_number);
+void BSP_disable_irq_at_pic(const rtems_irq_number);
+int  BSP_setup_the_pic(rtems_irq_global_settings *);
 
-/*
- *  Some items required to make some drivers compile, even though they
- *  will not work with this BSP.
- */
 
-#define BSP_irq_enabled_at_i8259s(_name) 0
-
-#define PCI_DRAM_BASE 0
-#define PCI_DRAM_OFFSET 0
 #endif
-
 #endif
diff --git a/c/src/lib/libbsp/powerpc/psim/irq/irq_init.c b/c/src/lib/libbsp/powerpc/psim/irq/irq_init.c
index 9789832750..b61ec6601e 100644
--- a/c/src/lib/libbsp/powerpc/psim/irq/irq_init.c
+++ b/c/src/lib/libbsp/powerpc/psim/irq/irq_init.c
@@ -31,19 +31,10 @@
 #include <bsp/motorola.h>
 #endif
 
-
 /*
 #define SHOW_ISA_PCI_BRIDGE_SETTINGS
 */
 
-typedef struct {
-  unsigned char bus;	/* few chance the PCI/ISA bridge is not on first bus but ... */
-  unsigned char device;
-  unsigned char function;
-} pci_isa_bridge_device;
-
-pci_isa_bridge_device* via_82c586 = 0;
-
 extern unsigned int external_exception_vector_prolog_code_size[];
 extern void external_exception_vector_prolog_code();
 extern unsigned int decrementer_exception_vector_prolog_code_size[];
@@ -70,35 +61,11 @@ static rtems_irq_connect_data     	defaultIrq = {
 };
 static rtems_irq_prio irqPrioTable[BSP_IRQ_NUMBER]={
   /*
-   * actual rpiorities for interrupt :
-   *	0   means that only current interrupt is masked
-   *	255 means all other interrupts are masked
-   */
-  /*
-   * ISA interrupts.
-   * The second entry has a priority of 255 because
-   * it is the slave pic entry and is should always remain
-   * unmasked.
-   */
-  0,0,
-  255,
-  0, 0, 0, 0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
-  /*
-   * PCI Interrupts
-   */
-  8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, /* for raven prio 0 means unactive... */
-  /*
    * Processor exceptions handled as interrupts
    */
   0
 };
 
-void VIA_isa_bridge_interrupts_setup(void)
-{
-  printk("VIA_isa_bridge_interrupts_setup - Shouldn't get here!\n");
-  return;
-}
-
   /*
    * This code assumes the exceptions management setup has already
    * been done. We just need to replace the exceptions that will
@@ -165,4 +132,3 @@ void BSP_rtems_irq_mng_init(unsigned cpuId)
     printk("RTEMS IRQ management is now operationnal\n");
 #endif
 }
-
diff --git a/c/src/lib/libbsp/powerpc/psim/irq/no_pic.c b/c/src/lib/libbsp/powerpc/psim/irq/no_pic.c
new file mode 100644
index 0000000000..5eeb408e51
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/psim/irq/no_pic.c
@@ -0,0 +1,60 @@
+/*
+ *
+ *  This file contains the implementation of the function described in irq.h
+ *
+ *  Copyright (C) 1998, 1999 valette@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.
+ *
+ *  Dummy support for just the decrementer interrupt but no PIC.
+ *
+ *  T. Straumann, 2007/11/30
+ *
+ *  irq.c,v 1.4.2.8 2003/09/04 18:45:20 joel Exp
+ */
+#include <rtems.h>
+#include <bsp.h>
+#include <bsp/irq.h>
+#include <libcpu/raw_exception.h>
+
+static rtems_irq_connect_data *rtems_hdl_tbl;
+
+/*
+ * High level IRQ handler called from shared_raw_irq_code_entry
+ */
+void C_dispatch_irq_handler (CPU_Interrupt_frame *frame, unsigned int excNum)
+{
+	register unsigned msr;
+	register unsigned new_msr;
+
+	if (excNum == ASM_DEC_VECTOR) {
+		_CPU_MSR_GET(msr);
+		new_msr = msr | MSR_EE;
+		_CPU_MSR_SET(new_msr);
+
+		rtems_hdl_tbl[BSP_DECREMENTER].hdl(rtems_hdl_tbl[BSP_DECREMENTER].handle);
+
+		_CPU_MSR_SET(msr);
+		return;
+
+	}
+}
+
+void
+BSP_enable_irq_at_pic(const rtems_irq_number irq)
+{
+}
+
+void
+BSP_disable_irq_at_pic(const rtems_irq_number irq)
+{
+}
+
+int
+BSP_setup_the_pic(rtems_irq_global_settings *config)
+{
+	rtems_hdl_tbl = config->irqHdlTbl;
+	return 1;
+}