Nut/OS  4.10.3
API Reference
Defines | Typedefs | Functions
ihndlr.h File Reference
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Defines

#define IRQ_ENTRY()
#define IRQ_EXIT()

Typedefs

typedef void(* __int_handler )(void)
 Pointer to interrupt handler.

Functions

void init_interrupts (void)
void register_interrupt (__int_handler handler, unsigned int irq, unsigned int int_lev)

Define Documentation

#define IRQ_ENTRY ( )
Value:
{                                                                                                                                                                                       \
        /* Prevent preempted interrupts disabling global interrupts */                                                  \
        __asm__ __volatile__ ("ssrf\t%0; nop; nop" :: "i" (AVR32_SR_GM_OFFSET) : "memory");             \
                                                                                                                                                                                        \
        /* Save R0..R7. Other registers are saved by the CPU if __AVR32_UC__ */                                 \
        /* Or by exception.S if __AVR32_AP7000__ */                                                                                             \
        __asm__ __volatile__ ("pushm r0-r7");                                                                                                   \
}

Definition at line 76 of file ihndlr.h.

#define IRQ_EXIT ( )
Value:
{                                                                                                                                                                                       \
        /* Restore R0..R7 */                                                                                                                                    \
        __asm__ __volatile__ ("popm r0-r7");                                                                                                    \
                                                                                                                                                                                        \
        /* Prevent preempted interrupts disabling global interrupts */                                                  \
        __asm__ __volatile__ ("csrf\t%0" :: "i" (AVR32_SR_GM_OFFSET) : "memory");                               \
}

Definition at line 87 of file ihndlr.h.

Typedef Documentation

typedef void(* __int_handler)(void)

Pointer to interrupt handler.

Copyright (C) 2001-2010 by egnite Software GmbH

All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. Neither the name of the copyright holders nor the names of contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

For additional information see http://www.ethernut.de/

Definition at line 58 of file ihndlr.h.

Function Documentation

void init_interrupts ( void  )

Definition at line 183 of file ihndlr.c.

References ipr_val.

Referenced by NutIdle().

void register_interrupt ( __int_handler  handler,
unsigned int  irq,
unsigned int  int_lev 
)

Definition at line 207 of file ihndlr.c.

References AVR32_INTC_MAX_NUM_IRQS_PER_GRP, and ipr_val.

Referenced by NutRegisterTimer().