forked from Imagelibrary/rtems
2000-10-18 Sergei Organov <osv@javad.ru>
* Added full support for MPC505. * mpc505/ictrl: New directory. * configure.in, mpc505/Makefile.am: Modified to reflect ictrl addition. * mpc505/ictrl/.cvsignore, mpc505/ictrl/Makefile.am, mpc505/ictrl/ictrl.c, mpc505/ictrl/ictrl.h: New files. * mpc505/timer/timer.c: Use <rtems.h>, not "rtems.h". * mpc505/vectors/Makefile.am: alignment exception handler now included. * mpc505/vectors/vectors.S: Now use constants for exception numbers. * old_exception_processing/ppc_offs.h: New file. * old_exception_processing/Makefile.am: Account for ppc_offs.h. * old_exception_processing/cpu.h: Make Nest and Disable levels volatile. * old_exception_processing/cpu_asm.S: Offsets moved to ppc_offs.h.
This commit is contained in:
Joel Sherrill
2
c/src/lib/libcpu/powerpc/mpc505/ictrl/.cvsignore
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2
c/src/lib/libcpu/powerpc/mpc505/ictrl/.cvsignore
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Makefile
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Makefile.in
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39
c/src/lib/libcpu/powerpc/mpc505/ictrl/Makefile.am
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c/src/lib/libcpu/powerpc/mpc505/ictrl/Makefile.am
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##
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## $Id$
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##
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AUTOMAKE_OPTIONS = foreign 1.4
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PGM = $(ARCH)/ictrl.rel
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C_FILES = ictrl.c
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H_FILES = ictrl.h
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ictrl_rel_OBJECTS = $(C_FILES:%.c=$(ARCH)/%.o)
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include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
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include $(top_srcdir)/../../../../../automake/compile.am
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include $(top_srcdir)/../../../../../automake/lib.am
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$(PROJECT_INCLUDE):
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$(mkinstalldirs) $@
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$(PROJECT_INCLUDE)/%.h: %.h
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$(INSTALL_DATA) $< $@
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#
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# (OPTIONAL) Add local stuff here using +=
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#
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$(PGM): $(ictrl_rel_OBJECTS)
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$(make-rel)
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TMPINSTALL_FILES += $(PROJECT_INCLUDE) $(PROJECT_INCLUDE)/ictrl.h
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all-local: $(ARCH) $(ictrl_rel_OBJECTS) $(PGM) $(TMPINSTALL_FILES)
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.PRECIOUS: $(PGM)
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EXTRA_DIST = ictrl.c ictrl.h
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include $(top_srcdir)/../../../../../automake/local.am
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68
c/src/lib/libcpu/powerpc/mpc505/ictrl/ictrl.c
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c/src/lib/libcpu/powerpc/mpc505/ictrl/ictrl.c
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/*
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* mpc505/509 external interrupt controller management.
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*/
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#include "ictrl.h"
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#include <rtems.h>
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#include <rtems/score/ppc.h>
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/*
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* Internal routines.
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*/
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static unsigned long volatile *const IRQAND =
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(unsigned long volatile *const)0x8007EFA4;
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static void nullHandler()
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{
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}
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/* Interrupt dispatch table. */
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static ExtIsrHandler extIrqHandlers[NUM_IRQS] =
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{
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nullHandler,
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nullHandler,
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nullHandler,
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nullHandler,
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nullHandler,
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nullHandler,
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nullHandler
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};
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/* RTEMS external interrupt handler. Calls installed external interrupt
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handlers for every pending external interrupt in turn. */
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static rtems_isr extIsr_( rtems_vector_number i )
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{
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#define BIT_NUMBER(val, bit) \
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asm volatile ( "cntlzw %0, %1; srawi %0, %0, 1": "=r" (bit) : "r" (val) );
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int bit;
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(void)i;
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BIT_NUMBER(*IRQAND & IMASK_ALL, bit);
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while ( bit < NUM_IRQS ) {
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extIrqHandlers[bit]();
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BIT_NUMBER(*IRQAND & IMASK_ALL, bit);
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}
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}
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/*
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* Public routines
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*/
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void extIrqSetHandler(ExtInt interrupt,ExtIsrHandler handler)
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{
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extIrqHandlers[interrupt] = handler;
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}
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void extIsrInit( void )
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{
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int i = 0;
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extIrqDisable(IMASK_ALL);
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for( i = 0; i < NUM_IRQS; i++)
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extIrqHandlers[i] = nullHandler;
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set_vector(extIsr_,PPC_IRQ_EXTERNAL,1);
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}
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75
c/src/lib/libcpu/powerpc/mpc505/ictrl/ictrl.h
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c/src/lib/libcpu/powerpc/mpc505/ictrl/ictrl.h
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#ifndef _ICTRL_H
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#define _ICTRL_H
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/*
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* mpc505/509 external interrupt controller management.
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*
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* FIXME: should be somehow merged into general RTEMS interrupt
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* management code.
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define _SIU_IRQENABLE ((unsigned long volatile *const)0x8007EFA8)
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#define _SIU_IRQPEND ((unsigned long volatile *const)0x8007EFA0)
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/* Interrupt masks. */
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enum {
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IMASK_EXT0 = 0x80000000,
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IMASK_EXT1 = 0x20000000,
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IMASK_EXT2 = 0x08000000,
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IMASK_EXT3 = 0x02000000,
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IMASK_EXT4 = 0x00800000,
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IMASK_EXT5 = 0x00200000,
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IMASK_EXT6 = 0x00080000,
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IMASK_ALL = IMASK_EXT0 | IMASK_EXT1 | IMASK_EXT2 | IMASK_EXT3 |
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IMASK_EXT4 | IMASK_EXT5 | IMASK_EXT6
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};
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/* Interrupt numbers. */
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typedef enum {
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IRQ_EXT0,
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IRQ_EXT1,
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IRQ_EXT2,
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IRQ_EXT3,
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IRQ_EXT4,
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IRQ_EXT5,
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IRQ_EXT6,
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NUM_IRQS
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} ExtInt;
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/* Type of external interrupt handlers */
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typedef void (*ExtIsrHandler) (void);
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/* Initialization. Must be called once after RTEMS interrupts sybsystem
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is initiailized. 'predriver_hook' is one of such places. */
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extern void extIsrInit( void );
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/* Set interrupt handler 'handler' for external interrupt number
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'interrupt'. */
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extern void extIrqSetHandler(ExtInt interrupt, ExtIsrHandler handler);
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/* Check is external interrupt 'irq' (IMASK_XXXX) is pended. */
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#define extIrqIsSet(irq) \
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(*_SIU_IRQPEND & (irq))
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/* Enable external interrupt 'irq' (IMASK_XXXX) processing. */
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#define extIrqEnable(irq) \
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(*_SIU_IRQENABLE |= (irq))
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/* Disable external interrupt 'irq' (IMASK_XXXX) processing. */
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#define extIrqDisable(irq) \
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(*_SIU_IRQENABLE &= ~(irq))
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/* Check if external interrupt 'irq' (IMASK_XXXX) processing is
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enabled. */
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#define extIrqGetEnable \
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(*_SIU_IRQENABLE)
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#ifdef __cplusplus
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}
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#endif
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#endif /* _ICTRL_H */
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