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Diffstat (limited to 'c/src/lib/libbsp/powerpc/score603e/irq/irq.c')
-rw-r--r--c/src/lib/libbsp/powerpc/score603e/irq/irq.c495
1 files changed, 0 insertions, 495 deletions
diff --git a/c/src/lib/libbsp/powerpc/score603e/irq/irq.c b/c/src/lib/libbsp/powerpc/score603e/irq/irq.c
deleted file mode 100644
index 431d0a94fb..0000000000
--- a/c/src/lib/libbsp/powerpc/score603e/irq/irq.c
+++ /dev/null
@@ -1,495 +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 the file LICENSE in this distribution or at
- * http://www.rtems.org/license/LICENSE.
- */
-
-#include <stdlib.h>
-
-#include <bsp.h>
-#include <bsp/irq.h>
-#include <bsp/VME.h>
-#include <rtems/score/apiext.h> /* for post ISR signal processing */
-#include <libcpu/io.h>
-#include <bsp/vectors.h>
-#include <stdlib.h>
-#include <rtems/bspIo.h> /* for printk */
-
-/*
- * 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 pci 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 Processor 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)
-{
- rtems_interrupt_level level;
- rtems_irq_connect_data* vchain;
-
-printk(" BSP_install_rtems_shared_irq_handler %d\n", irq->name );
-
- if (!isValidInterrupt(irq->name)) {
- printk("Invalid interrupt vector %d\n",irq->name);
- return 0;
- }
-
- rtems_interrupt_disable(level);
-
- if ( (int)rtems_hdl_tbl[irq->name].next_handler == -1 ) {
- rtems_interrupt_enable(level);
- printk("IRQ vector %d already connected to an unshared handler\n",irq->name);
- return 0;
- }
-
- vchain = (rtems_irq_connect_data*)malloc(sizeof(rtems_irq_connect_data));
-
- /* save off topmost handler */
- vchain[0]= rtems_hdl_tbl[irq->name];
-
- /*
- * store the data provided by user
- */
- rtems_hdl_tbl[irq->name] = *irq;
-
- /* link chain to new topmost handler */
- rtems_hdl_tbl[irq->name].next_handler = (void *)vchain;
-
- /*
- * XXX FIX ME
- */
- if (is_pci_irq(irq->name)) {
- }
-
- 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;
-}
-
-/*
- * This function disables a given XXX interrupt
- */
-rtems_status_code bsp_interrupt_vector_disable( rtems_vector_number irqLine)
-{
- /* XXX FIX ME!!!! */
-
- printk("bsp_interrupt_vector_disable: 0x%x\n", irqLine );
- return RTEMS_SUCCESSFUL;
-}
-
-rtems_status_code bsp_interrupt_vector_enable( rtems_vector_number irqLine)
-{
- /* XXX FIX ME!!!! */
- printk("bsp_interrupt_vector_enable: 0x%x\n", irqLine );
-
- return RTEMS_SUCCESSFUL;
-}
-
-
-
-/*
- * ------------------------ RTEMS Single Irq Handler Mngt Routines ----------------
- */
-
-int BSP_install_rtems_irq_handler (const rtems_irq_connect_data* irq)
-{
- rtems_interrupt_level level;
-
-printk(" BSP_install_rtems_irq_handler %d\n", irq->name );
-
- 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;
-
- /* XXX -FIX ME !! */
- if (is_pci_irq(irq->name)) {
- /*
- * Enable interrupt
- */
- printk("is_pci_irq = TRUE - FIX THIS!\n");
- }
-
- if (is_processor_irq(irq->name)) {
- /*
- * Enable exception at processor level
- */
- printk("is_processor_irq = TRUE : Fix This\n");
- }
-
- /*
- * Enable interrupt on device
- */
- if (irq->on) {
- printk("Call 0x%x\n", 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;
-
-printk(" BSP_get_current_rtems_irq_handler %d\n", irq->name );
- 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;
-
-printk(" BSP_remove_rtems_irq_handler %d\n", irq->name );
- 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;
- }
- }
-
- /* XXX - FIX ME !! */
- if (is_pci_irq(irq->name)) {
- /*
- * disable interrupt
- */
- }
- 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 Interrupt Handler Management Routines
- */
-
-int BSP_rtems_irq_mngt_set(rtems_irq_global_settings* config)
-{
- int i;
- rtems_interrupt_level level;
-
- /*
- * Store various code accelerators
- */
- internal_config = config;
- default_rtems_entry = config->defaultEntry;
- rtems_hdl_tbl = config->irqHdlTbl;
-
-printk(" BSP_rtems_irq_mngt_set\n");
-
- rtems_interrupt_disable(level);
- /*
- * set up internal tables used by rtems interrupt prologue
- */
-
- /*
- * XXX - FIX ME !!!
- */
- for (i=BSP_PCI_IRQ_LOWEST_OFFSET; i < BSP_PCI_IRQ_LOWEST_OFFSET + BSP_PCI_IRQ_NUMBER ; i++) {
- if (rtems_hdl_tbl[i].hdl != default_rtems_entry.hdl) {
- {
- rtems_irq_connect_data* vchain;
- for( vchain = &rtems_hdl_tbl[i];
- ((int)vchain != -1 && vchain->hdl != default_rtems_entry.hdl);
- vchain = (rtems_irq_connect_data*)vchain->next_handler )
- {
- if (vchain->on)
- vchain->on(vchain);
- }
- }
-
- }
- else {
- /* if (rtems_hdl_tbl[i].off) rtems_hdl_tbl[i].off(&rtems_hdl_tbl[i]); */
- {
- rtems_irq_connect_data* vchain;
- for( vchain = &rtems_hdl_tbl[i];
- ((int)vchain != -1 && vchain->hdl != default_rtems_entry.hdl);
- vchain = (rtems_irq_connect_data*)vchain->next_handler )
- {
- if (vchain->off)
- vchain->off(vchain);
- }
- }
- }
- }
- /*
- * finish with Processor exceptions handled like IRQ
- */
- for (i=BSP_PROCESSOR_IRQ_LOWEST_OFFSET; i < BSP_PROCESSOR_IRQ_LOWEST_OFFSET+BSP_PROCESSOR_IRQ_NUMBER; i++){
- if (rtems_hdl_tbl[i].hdl != default_rtems_entry.hdl) {
- {
- rtems_irq_connect_data* vchain;
- for( vchain = &rtems_hdl_tbl[i];
- ((int)vchain != -1 && vchain->hdl != default_rtems_entry.hdl);
- vchain = (rtems_irq_connect_data*)vchain->next_handler )
- {
- if (vchain->on)
- vchain->on(vchain);
- }
- }
-
- }
- else {
- {
- rtems_irq_connect_data* vchain;
- for( vchain = &rtems_hdl_tbl[i];
- ((int)vchain != -1 && vchain->hdl != default_rtems_entry.hdl);
- vchain = (rtems_irq_connect_data*)vchain->next_handler )
- {
- if (vchain->off)
- vchain->off(vchain);
- }
- }
-
- }
- }
- rtems_interrupt_enable(level);
- return 1;
-}
-
-int BSP_rtems_irq_mngt_get(rtems_irq_global_settings** config)
-{
- *config = internal_config;
- return 0;
-}
-
-unsigned BSP_spuriousIntr = 0;
-
-/*
- * High level IRQ handler called from shared_raw_irq_code_entry
- */
-int C_dispatch_irq_handler (CPU_Interrupt_frame *frame, unsigned int excNum)
-{
- register unsigned int irq;
- 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 0;
-
- }
-
- irq = read_and_clear_irq();
- _CPU_MSR_GET(msr);
- new_msr = msr | MSR_EE;
- _CPU_MSR_SET(new_msr);
-
- /* rtems_hdl_tbl[irq].hdl(rtems_hdl_tbl[irq].handle); */
- {
- rtems_irq_connect_data* vchain;
- for( vchain = &rtems_hdl_tbl[irq];
- ((int)vchain != -1 && vchain->hdl != default_rtems_entry.hdl);
- vchain = (rtems_irq_connect_data*)vchain->next_handler )
- {
- vchain->hdl(vchain->handle);
- }
- }
-
- _CPU_MSR_SET(msr);
-
- return 0;
-}
-
-rtems_status_code bsp_interrupt_facility_initialize(void)
-{
- /* Install exception handler */
- if (ppc_exc_set_handler( ASM_EXT_VECTOR, C_dispatch_irq_handler)) {
- return RTEMS_IO_ERROR;
- }
- if (ppc_exc_set_handler( ASM_DEC_VECTOR, C_dispatch_irq_handler)) {
- return RTEMS_IO_ERROR;
- }
- if (ppc_exc_set_handler( ASM_E300_SYSMGMT_VECTOR, C_dispatch_irq_handler)) {
- return RTEMS_IO_ERROR;
- }
-
- return RTEMS_SUCCESSFUL;
-}
-
-void bsp_interrupt_handler_default( rtems_vector_number vector )
-{
- if (vector != BSP_DECREMENTER) {
- printk( "Spurious interrupt: 0x%08x\n", vector);
- }
-}
-
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