forked from Imagelibrary/rtems
2007-12-14 Till Straumann <strauman@slac.stanford.edu>
* Makefile.am, irq/irq.c (removed), irq/irq_init.c: Use shared exception/interrupt support from libcpu/new-exceptions/bspsupport. NOTE: CHANGES MUST BE TESTED ON REAL HARDWARE.
This commit is contained in:
@@ -1,3 +1,10 @@
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2007-12-14 Till Straumann <strauman@slac.stanford.edu>
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* Makefile.am, irq/irq.c (removed), irq/irq_init.c:
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Use shared exception/interrupt support from
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libcpu/new-exceptions/bspsupport. NOTE: CHANGES MUST BE
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TESTED ON REAL HARDWARE.
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2007-12-11 Joel Sherrill <joel.sherrill@OARcorp.com>
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* include/bsp.h, startup/bspstart.c: Eliminate copies of the
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@@ -74,23 +74,15 @@ pci_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
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###
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include_bsp_HEADERS += ../../powerpc/shared/irq/irq.h \
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../../../libcpu/@RTEMS_CPU@/@exceptions@/bspsupport/ppc_exc_bspsupp.h \
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../../../libcpu/@RTEMS_CPU@/@exceptions@/bspsupport/vectors.h \
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../../../libcpu/@RTEMS_CPU@/@exceptions@/bspsupport/irq_supp.h
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noinst_PROGRAMS += irq.rel
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irq_rel_SOURCES = irq/irq_init.c irq/irq.c ../../powerpc/shared/irq/i8259.c \
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../../powerpc/shared/irq/irq_asm.S
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irq_rel_SOURCES = irq/irq_init.c ../shared/irq/openpic_i8259_irq.c ../../powerpc/shared/irq/i8259.c
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irq_rel_CPPFLAGS = $(AM_CPPFLAGS)
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irq_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
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##
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include_bsp_HEADERS += ../../powerpc/shared/vectors/vectors.h
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noinst_PROGRAMS += vectors.rel
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vectors_rel_SOURCES = ../../powerpc/shared/vectors/vectors_init.c \
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../../powerpc/shared/vectors/vectors.S
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vectors_rel_CPPFLAGS = $(AM_CPPFLAGS)
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vectors_rel_LDFLAGS = $(RTEMS_RELLDFLAGS)
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##
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include_bsp_HEADERS += ../../shared/vmeUniverse/vmeUniverse.h \
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vme/VMEConfig.h \
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@@ -124,13 +116,15 @@ project_lib_DATA += rtems_crti.$(OBJEXT)
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noinst_LIBRARIES = libbsp.a
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libbsp_a_SOURCES =
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libbsp_a_LIBADD = pclock.rel console.rel irq.rel openpic.rel pci.rel \
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vectors.rel startup.rel vme.rel
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startup.rel vme.rel
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libbsp_a_LIBADD += ../../../libcpu/@RTEMS_CPU@/shared/cpuIdent.rel \
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../../../libcpu/@RTEMS_CPU@/shared/stack.rel \
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../../../libcpu/@RTEMS_CPU@/@exceptions@/rtems-cpu.rel \
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../../../libcpu/@RTEMS_CPU@/mpc6xx/clock.rel \
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../../../libcpu/@RTEMS_CPU@/@exceptions@/raw_exception.rel \
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../../../libcpu/@RTEMS_CPU@/@exceptions@/exc_bspsupport.rel \
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../../../libcpu/@RTEMS_CPU@/@exceptions@/irq_bspsupport.rel \
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../../../libcpu/@RTEMS_CPU@/mpc6xx/mmu.rel \
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../../../libcpu/@RTEMS_CPU@/mpc6xx/timer.rel
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@@ -1,554 +0,0 @@
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/*
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*
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* This file contains the implementation of the function described in irq.h
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*
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* COPYRIGHT (c) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#include <rtems/system.h>
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#include <bsp.h>
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#include <bsp/irq.h>
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#include <bsp/VME.h>
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#include <bsp/openpic.h>
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#include <rtems/score/thread.h>
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#include <rtems/score/apiext.h>
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#include <libcpu/raw_exception.h>
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#include <libcpu/io.h>
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#include <bsp/vectors.h>
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#include <stdlib.h>
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#include <rtems/bspIo.h> /* for printk */
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#define RAVEN_INTR_ACK_REG 0xfeff0030
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/*
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* pointer to the mask representing the additionnal irq vectors
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* that must be disabled when a particular entry is activated.
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* They will be dynamically computed from teh prioruty table given
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* in BSP_rtems_irq_mngt_set();
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* CAUTION : this table is accessed directly by interrupt routine
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* prologue.
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*/
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rtems_i8259_masks irq_mask_or_tbl[BSP_IRQ_NUMBER];
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/*
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* default handler connected on each irq after bsp initialization
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*/
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static rtems_irq_connect_data default_rtems_entry;
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/*
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* location used to store initial tables used for interrupt
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* management.
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*/
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static rtems_irq_global_settings* internal_config;
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static rtems_irq_connect_data* rtems_hdl_tbl;
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/*
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* Check if IRQ is an ISA IRQ
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*/
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static inline int is_isa_irq(const rtems_irq_number irqLine)
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{
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return (((int) irqLine <= BSP_ISA_IRQ_MAX_OFFSET) &
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((int) irqLine >= BSP_ISA_IRQ_LOWEST_OFFSET)
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);
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}
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/*
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* Check if IRQ is an OPENPIC IRQ
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*/
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static inline int is_pci_irq(const rtems_irq_number irqLine)
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{
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return (((int) irqLine <= BSP_PCI_IRQ_MAX_OFFSET) &
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((int) irqLine >= BSP_PCI_IRQ_LOWEST_OFFSET)
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);
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}
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/*
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* Check if IRQ is a Porcessor IRQ
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*/
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static inline int is_processor_irq(const rtems_irq_number irqLine)
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{
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return (((int) irqLine <= BSP_PROCESSOR_IRQ_MAX_OFFSET) &
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((int) irqLine >= BSP_PROCESSOR_IRQ_LOWEST_OFFSET)
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);
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}
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/*
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* ------------------------ RTEMS Irq helper functions ----------------
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*/
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/*
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* This function check that the value given for the irq line
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* is valid.
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*/
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static int isValidInterrupt(int irq)
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{
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if ( (irq < BSP_LOWEST_OFFSET) || (irq > BSP_MAX_OFFSET))
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return 0;
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return 1;
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}
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/*
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* ------------------------ RTEMS Shared Irq Handler Mngt Routines ----------------
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*/
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int BSP_install_rtems_shared_irq_handler (const rtems_irq_connect_data* irq)
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{
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rtems_interrupt_level level;
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rtems_irq_connect_data* vchain;
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if (!isValidInterrupt(irq->name)) {
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printk("Invalid interrupt vector %d\n",irq->name);
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return 0;
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}
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printk("Install Shared interrupt %d\n", irq->name);
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rtems_interrupt_disable(level);
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if ( (int)rtems_hdl_tbl[irq->name].next_handler == -1 ) {
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rtems_interrupt_enable(level);
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printk("IRQ vector %d already connected to an unshared handler\n",irq->name);
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return 0;
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}
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vchain = (rtems_irq_connect_data*)malloc(sizeof(rtems_irq_connect_data));
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/* save off topmost handler */
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vchain[0]= rtems_hdl_tbl[irq->name];
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/*
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* store the data provided by user
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*/
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rtems_hdl_tbl[irq->name] = *irq;
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/* link chain to new topmost handler */
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rtems_hdl_tbl[irq->name].next_handler = (void *)vchain;
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if (is_isa_irq(irq->name)) {
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/*
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* Enable interrupt at PIC level
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*/
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BSP_irq_enable_at_i8259s (irq->name);
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}
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if (is_pci_irq(irq->name)) {
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/*
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* Enable interrupt at OPENPIC level
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*/
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printk(" openpic_enable_irq %d\n", (int)irq->name );
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openpic_enable_irq ((int) irq->name ); /* - BSP_PCI_IRQ_LOWEST_OFFSET); */
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}
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if (is_processor_irq(irq->name)) {
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/*
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* Enable exception at processor level
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*/
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}
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/*
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* Enable interrupt on device
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*/
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if (irq->on)
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irq->on(irq);
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rtems_interrupt_enable(level);
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return 1;
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}
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/*
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* ------------------------ RTEMS Single Irq Handler Mngt Routines ----------------
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*/
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int BSP_install_rtems_irq_handler (const rtems_irq_connect_data* irq)
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{
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rtems_interrupt_level level;
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if (!isValidInterrupt(irq->name)) {
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printk("Invalid interrupt vector %d\n",irq->name);
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return 0;
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}
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/*
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* Check if default handler is actually connected. If not issue an error.
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* You must first get the current handler via i386_get_current_idt_entry
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* and then disconnect it using i386_delete_idt_entry.
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* RATIONALE : to always have the same transition by forcing the user
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* to get the previous handler before accepting to disconnect.
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*/
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rtems_interrupt_disable(level);
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if (rtems_hdl_tbl[irq->name].hdl != default_rtems_entry.hdl) {
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rtems_interrupt_enable(level);
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printk("IRQ vector %d already connected\n",irq->name);
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return 0;
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}
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/*
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* store the data provided by user
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*/
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rtems_hdl_tbl[irq->name] = *irq;
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rtems_hdl_tbl[irq->name].next_handler = (void *)-1;
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if (is_isa_irq(irq->name)) {
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/*
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* Enable interrupt at PIC level
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*/
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BSP_irq_enable_at_i8259s (irq->name);
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}
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if (is_pci_irq(irq->name)) {
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/*
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* Enable interrupt at OPENPIC level
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*/
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openpic_enable_irq ((int) irq->name ); /* - BSP_PCI_IRQ_LOWEST_OFFSET); */
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}
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if (is_processor_irq(irq->name)) {
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/*
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* Enable exception at processor level
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*/
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}
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/*
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* Enable interrupt on device
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*/
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if (irq->on)
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irq->on(irq);
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rtems_interrupt_enable(level);
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return 1;
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}
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int BSP_get_current_rtems_irq_handler (rtems_irq_connect_data* irq)
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{
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rtems_interrupt_level level;
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if (!isValidInterrupt(irq->name)) {
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return 0;
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}
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rtems_interrupt_disable(level);
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*irq = rtems_hdl_tbl[irq->name];
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rtems_interrupt_enable(level);
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return 1;
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}
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int BSP_remove_rtems_irq_handler (const rtems_irq_connect_data* irq)
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{
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rtems_irq_connect_data *pchain= NULL, *vchain = NULL;
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rtems_interrupt_level level;
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if (!isValidInterrupt(irq->name)) {
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return 0;
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}
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/*
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* Check if default handler is actually connected. If not issue an error.
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* You must first get the current handler via i386_get_current_idt_entry
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* and then disconnect it using i386_delete_idt_entry.
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* RATIONALE : to always have the same transition by forcing the user
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* to get the previous handler before accepting to disconnect.
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*/
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rtems_interrupt_disable(level);
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if (rtems_hdl_tbl[irq->name].hdl != irq->hdl) {
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rtems_interrupt_enable(level);
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return 0;
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}
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if( (int)rtems_hdl_tbl[irq->name].next_handler != -1 )
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{
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int found = 0;
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for( (pchain= NULL, vchain = &rtems_hdl_tbl[irq->name]);
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(vchain->hdl != default_rtems_entry.hdl);
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(pchain= vchain, vchain = (rtems_irq_connect_data*)vchain->next_handler) )
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{
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if( vchain->hdl == irq->hdl )
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{
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found= -1; break;
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}
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}
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if( !found )
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{
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rtems_interrupt_enable(level);
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return 0;
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}
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}
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else
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{
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if (rtems_hdl_tbl[irq->name].hdl != irq->hdl)
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{
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rtems_interrupt_enable(level);
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return 0;
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}
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}
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if (is_isa_irq(irq->name)) {
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/*
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* disable interrupt at PIC level
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*/
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BSP_irq_disable_at_i8259s (irq->name);
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}
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if (is_pci_irq(irq->name)) {
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/*
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* disable interrupt at OPENPIC level
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*/
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openpic_disable_irq ((int) irq->name );
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}
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if (is_processor_irq(irq->name)) {
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/*
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* disable exception at processor level
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*/
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}
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/*
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* Disable interrupt on device
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*/
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if (irq->off)
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irq->off(irq);
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/*
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* restore the default irq value
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*/
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if( !vchain )
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{
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/* single handler vector... */
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rtems_hdl_tbl[irq->name] = default_rtems_entry;
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}
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else
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{
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if( pchain )
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{
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/* non-first handler being removed */
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pchain->next_handler = vchain->next_handler;
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}
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else
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{
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/* first handler isn't malloc'ed, so just overwrite it. Since
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the contents of vchain are being struct copied, vchain itself
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goes away */
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rtems_hdl_tbl[irq->name]= *vchain;
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}
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free(vchain);
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}
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rtems_interrupt_enable(level);
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return 1;
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}
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/*
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* ------------------------ RTEMS Global Irq Handler Mngt Routines ----------------
|
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*/
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int BSP_rtems_irq_mngt_set(rtems_irq_global_settings* config)
|
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{
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int i;
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rtems_interrupt_level level;
|
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|
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/*
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* Store various code accelerators
|
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*/
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internal_config = config;
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default_rtems_entry = config->defaultEntry;
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rtems_hdl_tbl = config->irqHdlTbl;
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return 1;
|
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|
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rtems_interrupt_disable(level);
|
||||
/*
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* set up internal tables used by rtems interrupt prologue
|
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*/
|
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for (i=BSP_PCI_IRQ_LOWEST_OFFSET; i < BSP_PCI_IRQ_LOWEST_OFFSET + BSP_PCI_IRQ_NUMBER ; i++) {
|
||||
/*
|
||||
* Note that openpic_set_priority() sets the TASK priority of the PIC
|
||||
*/
|
||||
openpic_set_source_priority(i, internal_config->irqPrioTbl[i]);
|
||||
if (rtems_hdl_tbl[i].hdl != default_rtems_entry.hdl) {
|
||||
openpic_enable_irq ((int) i);
|
||||
{
|
||||
rtems_irq_connect_data* vchain;
|
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for( vchain = &rtems_hdl_tbl[i];
|
||||
((int)vchain != -1 && vchain->hdl != default_rtems_entry.hdl);
|
||||
vchain = (rtems_irq_connect_data*)vchain->next_handler )
|
||||
{
|
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if(vchain->on)
|
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vchain->on(vchain);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
else {
|
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/* if (rtems_hdl_tbl[i].off) rtems_hdl_tbl[i].off(&rtems_hdl_tbl[i]); */
|
||||
{
|
||||
rtems_irq_connect_data* vchain;
|
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for( vchain = &rtems_hdl_tbl[i];
|
||||
((int)vchain != -1 && vchain->hdl != default_rtems_entry.hdl);
|
||||
vchain = (rtems_irq_connect_data*)vchain->next_handler )
|
||||
{
|
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if (vchain->off)
|
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vchain->off(vchain);
|
||||
}
|
||||
}
|
||||
|
||||
openpic_disable_irq ((int) i );
|
||||
}
|
||||
}
|
||||
/*
|
||||
* Must enable PCI/ISA bridge IRQ
|
||||
*/
|
||||
openpic_enable_irq (0);
|
||||
/*
|
||||
* 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) {
|
||||
/* if (rtems_hdl_tbl[i].on) rtems_hdl_tbl[i].on(&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->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);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
rtems_interrupt_enable(level);
|
||||
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
|
||||
*/
|
||||
int C_dispatch_irq_handler (struct _BSP_Exception_frame *frame, unsigned int excNum)
|
||||
{
|
||||
register unsigned int irq;
|
||||
register unsigned isaIntr; /* boolean */
|
||||
register unsigned oldMask = 0; /* old isa pic masks */
|
||||
register unsigned newMask; /* new isa pic masks */
|
||||
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 = openpic_irq(0);
|
||||
|
||||
if (irq == OPENPIC_VEC_SPURIOUS) {
|
||||
++BSP_spuriousIntr;
|
||||
return 0;
|
||||
}
|
||||
|
||||
isaIntr = (irq == BSP_PCI_ISA_BRIDGE_IRQ);
|
||||
if (isaIntr) {
|
||||
/*
|
||||
* Acknowledge and read 8259 vector
|
||||
*/
|
||||
irq = (unsigned int) (*(unsigned char *) RAVEN_INTR_ACK_REG);
|
||||
/*
|
||||
* store current PIC mask
|
||||
*/
|
||||
oldMask = i8259s_cache;
|
||||
newMask = oldMask | irq_mask_or_tbl [irq];
|
||||
i8259s_cache = newMask;
|
||||
outport_byte(PIC_MASTER_IMR_IO_PORT, i8259s_cache & 0xff);
|
||||
outport_byte(PIC_SLAVE_IMR_IO_PORT, ((i8259s_cache & 0xff00) >> 8));
|
||||
BSP_irq_ack_at_i8259s (irq);
|
||||
openpic_eoi(0);
|
||||
}
|
||||
|
||||
_CPU_MSR_GET(msr);
|
||||
new_msr = msr | MSR_EE;
|
||||
_CPU_MSR_SET(new_msr);
|
||||
|
||||
{
|
||||
rtems_irq_connect_data* vchain;
|
||||
irq -= 16; /* Correct the vector for the 8240 */
|
||||
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);
|
||||
|
||||
if (isaIntr) {
|
||||
i8259s_cache = oldMask;
|
||||
outport_byte(PIC_MASTER_IMR_IO_PORT, i8259s_cache & 0xff);
|
||||
outport_byte(PIC_SLAVE_IMR_IO_PORT, ((i8259s_cache & 0xff00) >> 8));
|
||||
}
|
||||
else {
|
||||
#ifdef BSP_PCI_VME_DRIVER_DOES_EOI
|
||||
/* leave it to the VME bridge driver to do EOI, so
|
||||
* it can re-enable the openpic while handling
|
||||
* VME interrupts (-> VME priorities in software)
|
||||
*/
|
||||
if (_BSP_vme_bridge_irq != irq)
|
||||
#endif
|
||||
openpic_eoi(0);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
|
||||
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...
|
||||
*/
|
||||
}
|
||||
@@ -36,20 +36,6 @@
|
||||
#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;
|
||||
static pci_isa_bridge_device bridge;
|
||||
|
||||
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[];
|
||||
extern void decrementer_exception_vector_prolog_code();
|
||||
|
||||
/*
|
||||
* default on/off function
|
||||
*/
|
||||
@@ -152,109 +138,6 @@ static unsigned char mcp750_openpic_initsenses[] = {
|
||||
1
|
||||
};
|
||||
|
||||
void VIA_isa_bridge_interrupts_setup(void)
|
||||
{
|
||||
pci_isa_bridge_device pci_dev;
|
||||
uint32_t temp;
|
||||
unsigned char tmp;
|
||||
unsigned char maxBus;
|
||||
unsigned found = 0;
|
||||
|
||||
maxBus = pci_bus_count();
|
||||
pci_dev.function = 0; /* Assumes the bidge is the first function */
|
||||
|
||||
for (pci_dev.bus = 0; pci_dev.bus < maxBus; pci_dev.bus++) {
|
||||
#ifdef SCAN_PCI_PRINT
|
||||
printk("isa_bridge_interrupts_setup: Scanning bus %d\n", pci_dev.bus);
|
||||
#endif
|
||||
for (pci_dev.device = 0; pci_dev.device < PCI_MAX_DEVICES; pci_dev.device++) {
|
||||
#ifdef SCAN_PCI_PRINT
|
||||
printk("isa_bridge_interrupts_setup: Scanning device %d\n", pci_dev.device);
|
||||
#endif
|
||||
pci_read_config_dword(pci_dev.bus, pci_dev.device, pci_dev.function,
|
||||
PCI_VENDOR_ID, &temp);
|
||||
#ifdef SCAN_PCI_PRINT
|
||||
printk("Vendor/device = %x\n", temp);
|
||||
#endif
|
||||
if ((temp == (((unsigned short) PCI_VENDOR_ID_VIA) | (PCI_DEVICE_ID_VIA_82C586_0 << 16)))
|
||||
) {
|
||||
bridge = pci_dev;
|
||||
via_82c586 = &bridge;
|
||||
#ifdef SHOW_ISA_PCI_BRIDGE_SETTINGS
|
||||
/*
|
||||
* Should print : bus = 0, device = 11, function = 0 on a MCP750.
|
||||
*/
|
||||
printk("Via PCI/ISA bridge found at bus = %d, device = %d, function = %d\n",
|
||||
via_82c586->bus,
|
||||
via_82c586->device,
|
||||
via_82c586->function);
|
||||
#endif
|
||||
found = 1;
|
||||
goto loop_exit;
|
||||
|
||||
}
|
||||
}
|
||||
}
|
||||
loop_exit:
|
||||
if (!found) BSP_panic("VIA_82C586 PCI/ISA bridge not found!n");
|
||||
|
||||
tmp = inb(0x810);
|
||||
if ( !(tmp & 0x2)) {
|
||||
#ifdef SHOW_ISA_PCI_BRIDGE_SETTINGS
|
||||
printk("This is a second generation MCP750 board\n");
|
||||
printk("We must reprogram the PCI/ISA bridge...\n");
|
||||
#endif
|
||||
pci_read_config_byte(via_82c586->bus, via_82c586->device, via_82c586->function,
|
||||
0x47, &tmp);
|
||||
#ifdef SHOW_ISA_PCI_BRIDGE_SETTINGS
|
||||
printk(" PCI ISA bridge control2 = %x\n", (unsigned) tmp);
|
||||
#endif
|
||||
/*
|
||||
* Enable 4D0/4D1 ISA interrupt level/edge config registers
|
||||
*/
|
||||
tmp |= 0x20;
|
||||
pci_write_config_byte(via_82c586->bus, via_82c586->device, via_82c586->function,
|
||||
0x47, tmp);
|
||||
/*
|
||||
* Now program the ISA interrupt edge/level
|
||||
*/
|
||||
tmp = ELCRS_INT9_LVL | ELCRS_INT10_LVL | ELCRS_INT11_LVL;
|
||||
outb(tmp, ISA8259_S_ELCR);
|
||||
tmp = ELCRM_INT5_LVL;
|
||||
outb(tmp, ISA8259_M_ELCR);;
|
||||
/*
|
||||
* Set the Interrupt inputs to non-inverting level interrupt
|
||||
*/
|
||||
pci_read_config_byte(via_82c586->bus, via_82c586->device, via_82c586->function,
|
||||
0x54, &tmp);
|
||||
#ifdef SHOW_ISA_PCI_BRIDGE_SETTINGS
|
||||
printk(" PCI ISA bridge PCI/IRQ Edge/Level Select = %x\n", (unsigned) tmp);
|
||||
#endif
|
||||
tmp = 0;
|
||||
pci_write_config_byte(via_82c586->bus, via_82c586->device, via_82c586->function,
|
||||
0x54, tmp);
|
||||
}
|
||||
else {
|
||||
#ifdef SHOW_ISA_PCI_BRIDGE_SETTINGS
|
||||
printk("This is a first generation MCP750 board\n");
|
||||
printk("We just show the actual value used by PCI/ISA bridge\n");
|
||||
#endif
|
||||
pci_read_config_byte(via_82c586->bus, via_82c586->device, via_82c586->function,
|
||||
0x47, &tmp);
|
||||
#ifdef SHOW_ISA_PCI_BRIDGE_SETTINGS
|
||||
printk(" PCI ISA bridge control2 = %x\n", (unsigned) tmp);
|
||||
#endif
|
||||
/*
|
||||
* Show the Interrupt inputs inverting/non-inverting level status
|
||||
*/
|
||||
pci_read_config_byte(via_82c586->bus, via_82c586->device, via_82c586->function,
|
||||
0x54, &tmp);
|
||||
#ifdef SHOW_ISA_PCI_BRIDGE_SETTINGS
|
||||
printk(" PCI ISA bridge PCI/IRQ Edge/Level Select = %x\n", (unsigned) tmp);
|
||||
#endif
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* This code assumes the exceptions management setup has already
|
||||
* been done. We just need to replace the exceptions that will
|
||||
@@ -263,7 +146,6 @@ loop_exit:
|
||||
*/
|
||||
void BSP_rtems_irq_mng_init(unsigned cpuId)
|
||||
{
|
||||
rtems_raw_except_connect_data vectorDesc;
|
||||
int i;
|
||||
|
||||
/*
|
||||
@@ -309,27 +191,6 @@ void BSP_rtems_irq_mng_init(unsigned cpuId)
|
||||
BSP_panic("Unable to initialize RTEMS interrupt Management!!! System locked\n");
|
||||
}
|
||||
|
||||
/*
|
||||
* We must connect the raw irq handler for the two
|
||||
* expected interrupt sources : decrementer and external interrupts.
|
||||
*/
|
||||
vectorDesc.exceptIndex = ASM_DEC_VECTOR;
|
||||
vectorDesc.hdl.vector = ASM_DEC_VECTOR;
|
||||
vectorDesc.hdl.raw_hdl = decrementer_exception_vector_prolog_code;
|
||||
vectorDesc.hdl.raw_hdl_size = (unsigned) decrementer_exception_vector_prolog_code_size;
|
||||
vectorDesc.on = nop_func;
|
||||
vectorDesc.off = nop_func;
|
||||
vectorDesc.isOn = connected;
|
||||
if (!ppc_set_exception (&vectorDesc)) {
|
||||
BSP_panic("Unable to initialize RTEMS decrementer raw exception\n");
|
||||
}
|
||||
vectorDesc.exceptIndex = ASM_EXT_VECTOR;
|
||||
vectorDesc.hdl.vector = ASM_EXT_VECTOR;
|
||||
vectorDesc.hdl.raw_hdl = external_exception_vector_prolog_code;
|
||||
vectorDesc.hdl.raw_hdl_size = (unsigned) external_exception_vector_prolog_code_size;
|
||||
if (!ppc_set_exception (&vectorDesc)) {
|
||||
BSP_panic("Unable to initialize RTEMS external raw exception\n");
|
||||
}
|
||||
#ifdef TRACE_IRQ_INIT
|
||||
printk("RTEMS IRQ management is now operationnal\n");
|
||||
#endif
|
||||
|
||||
@@ -93,14 +93,18 @@ $(PROJECT_INCLUDE)/bsp/irq.h: ../../powerpc/shared/irq/irq.h $(PROJECT_INCLUDE)/
|
||||
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/irq.h
|
||||
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/irq.h
|
||||
|
||||
$(PROJECT_INCLUDE)/bsp/ppc_exc_bspsupp.h: ../../../libcpu/@RTEMS_CPU@/@exceptions@/bspsupport/ppc_exc_bspsupp.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
|
||||
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/ppc_exc_bspsupp.h
|
||||
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/ppc_exc_bspsupp.h
|
||||
|
||||
$(PROJECT_INCLUDE)/bsp/vectors.h: ../../../libcpu/@RTEMS_CPU@/@exceptions@/bspsupport/vectors.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
|
||||
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/vectors.h
|
||||
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/vectors.h
|
||||
|
||||
$(PROJECT_INCLUDE)/bsp/irq_supp.h: ../../../libcpu/@RTEMS_CPU@/@exceptions@/bspsupport/irq_supp.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
|
||||
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/irq_supp.h
|
||||
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/irq_supp.h
|
||||
|
||||
$(PROJECT_INCLUDE)/bsp/vectors.h: ../../powerpc/shared/vectors/vectors.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
|
||||
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/vectors.h
|
||||
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/vectors.h
|
||||
|
||||
$(PROJECT_INCLUDE)/bsp/vmeUniverse.h: ../../shared/vmeUniverse/vmeUniverse.h $(PROJECT_INCLUDE)/bsp/$(dirstamp)
|
||||
$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/bsp/vmeUniverse.h
|
||||
PREINSTALL_FILES += $(PROJECT_INCLUDE)/bsp/vmeUniverse.h
|
||||
|
||||
Reference in New Issue
Block a user