3f82e03f11
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18072 a1c6a512-1295-4272-9138-f99709370657
105 lines
2.6 KiB
C
105 lines
2.6 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2008 by Maurus Cuelenaere
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "config.h"
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#include "jz4740.h"
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#include "mipsregs.h"
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/* Core-level interrupt masking */
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/* This one returns the old status */
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#define HIGHEST_IRQ_LEVEL 0
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#define set_irq_level(status) \
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set_interrupt_status((status), ST0_IE)
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#define set_fiq_status(status) \
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set_interrupt_status((status), ST0_IE)
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static inline int set_interrupt_status(int status, int mask)
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{
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unsigned int res, oldstatus;
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res = oldstatus = read_c0_status();
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res &= ~mask;
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res |= (status & mask);
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write_c0_status(res);
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return oldstatus;
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}
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static inline void enable_interrupt(void)
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{
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/* Set IE bit */
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set_c0_status(ST0_IE);
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}
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static inline void disable_interrupt(void)
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{
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/* Clear IE bit */
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clear_c0_status(ST0_IE);
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}
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#define disable_irq() \
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disable_interrupt()
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#define enable_irq() \
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enable_interrupt()
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#define disable_fiq() \
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disable_interrupt()
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#define enable_fiq() \
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enable_interrupt()
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static inline int disable_interrupt_save(int mask)
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{
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unsigned int oldstatus;
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oldstatus = read_c0_status();
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write_c0_status(oldstatus | mask);
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return oldstatus;
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}
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#define disable_irq_save() \
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disable_interrupt_save(ST0_IE)
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#define disable_fiq_save() \
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disable_interrupt_save(ST0_IE)
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static inline void restore_interrupt(int status)
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{
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write_c0_status(status);
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}
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#define restore_irq(cpsr) \
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restore_interrupt(cpsr)
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#define restore_fiq(cpsr) \
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restore_interrupt(cpsr)
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#define swap16(x) (((x) & 0xff) << 8 | ((x) >> 8) & 0xff)
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#define swap32(x) (((x) & 0xff) << 24 | ((x) & 0xff00) << 8 | ((x) & 0xff0000) >> 8 | ((x) >> 24) & 0xff)
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void sti(void);
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void cli(void);
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#define UNCACHED_ADDRESS(addr) ((unsigned int)(addr) | 0xA0000000)
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