195 lines
6.3 KiB
C
195 lines
6.3 KiB
C
/****************************************************************************
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* common/up_internal.h
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*
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* Copyright (C) 2008-2009, 2011-2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __UP_INTERNAL_H
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#define __UP_INTERNAL_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <arch/irq.h>
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#include "chip/chip.h"
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/****************************************************************************
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* Definitions
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****************************************************************************/
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/* Bring-up debug configurations. These are here (vs defconfig)
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* because these should only be controlled during low level
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* board bring-up and not part of normal platform configuration.
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*/
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#undef CONFIG_SUPPRESS_INTERRUPTS /* Do not enable interrupts */
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#undef CONFIG_SUPPRESS_TIMER_INTS /* No timer */
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#undef CONFIG_SUPPRESS_SERIAL_INTS /* Console will poll */
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#undef CONFIG_SUPPRESS_UART_CONFIG /* Do not reconfig UART */
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#undef CONFIG_DUMP_ON_EXIT /* Dump task state on exit */
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#undef CONFIG_Z16_LOWPUTC /* Support up_lowputc for debug */
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#undef CONFIG_Z16_LOWGETC /* support up_lowgetc for debug */
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/* Determine which (if any) console driver to use */
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#if defined(CONFIG_Z16_LOWPUTC) || defined(CONFIG_Z16_LOWGETC) || \
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CONFIG_NFILE_DESCRIPTORS == 0 || defined(CONFIG_DEV_LOWCONSOLE)
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# define USE_LOWCONSOLE 1
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# define USE_LOWUARTINIT 1
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#elif defined(CONFIG_DEV_CONSOLE) && CONFIG_NFILE_DESCRIPTORS > 0
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# define USE_SERIALDRIVER 1
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# define USE_EARLYSERIALINIT 1
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#endif
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/* Determine which device to use as the system logging device */
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#ifndef CONFIG_SYSLOG
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# undef CONFIG_SYSLOG_CHAR
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# undef CONFIG_RAMLOG_SYSLOG
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#endif
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/* Macros for portability */
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#define IN_INTERRUPT (current_regs != NULL)
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#define SAVE_IRQCONTEXT(tcb) up_copystate((tcb)->xcp.regs, (FAR chipreg_t*)current_regs)
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#define SET_IRQCONTEXT(tcb) do { current_regs = (tcb)->xcp.regs; } while (0)
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#define SAVE_USERCONTEXT(tcb) up_saveusercontext((tcb)->xcp.regs)
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#define RESTORE_USERCONTEXT(tcb) up_restoreusercontext((tcb)->xcp.regs)
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#define SIGNAL_RETURN(regs) up_restoreusercontext(regs)
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/****************************************************************************
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* Public Types
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****************************************************************************/
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#ifndef __ASSEMBLY__
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typedef void (*up_vector_t)(void);
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#endif
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/****************************************************************************
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* Public Variables
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****************************************************************************/
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#ifndef __ASSEMBLY__
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/* This holds a references to the current interrupt level
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* register storage structure. If is non-NULL only during
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* interrupt processing.
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*/
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extern voltile FAR chipreg_t *current_regs;
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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#ifndef __ASSEMBLY__
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/* Defined in files with the same name as the function */
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extern void up_copystate(FAR chipreg_t *dest, FAR chipreg_t *src);
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extern FAR chipreg_t *up_doirq(int irq, FAR chipreg_t *regs);
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extern void up_restoreusercontext(FAR chipreg_t *regs);
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extern void up_irqinitialize(void);
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extern int up_saveusercontext(FAR chipreg_t *regs);
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extern void up_sigdeliver(void);
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extern int up_timerisr(int irq, FAR chipreg_t *regs);
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#if defined(CONFIG_Z16_LOWPUTC) || defined(CONFIG_Z16_LOWGETC)
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extern void up_lowputc(char ch);
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#else
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# define up_lowputc(ch)
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#endif
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/* Defined in up_allocateheap.c */
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#if CONFIG_MM_REGIONS > 1
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void up_addregion(void);
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#endif
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/* Defined in up_serial.c */
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#ifdef USE_SERIALDRIVER
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extern void up_earlyserialinit(void);
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extern void up_serialinit(void);
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#endif
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#ifdef USE_LOWCONSOLE
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extern void lowconsole_init(void);
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#endif
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/* Defined in up_timerisr.c */
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extern void up_timerinit(void);
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/* Defined in up_irq.c */
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extern void up_maskack_irq(int irq);
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/* Defined in board/up_leds.c */
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#ifdef CONFIG_ARCH_LEDS
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extern void up_ledinit(void);
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extern void up_ledon(int led);
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extern void up_ledoff(int led);
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#else
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# define up_ledinit()
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# define up_ledon(led)
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# define up_ledoff(led)
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#endif
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/* Defined in board/up_network.c */
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#ifdef CONFIG_NET
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extern void up_netinitialize(void);
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#else
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# define up_netinitialize()
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#endif
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/* Return the current value of the stack pointer (used in stack dump logic) */
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extern chipreg_t up_getsp(void);
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/* Dump stack and registers */
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#ifdef CONFIG_ARCH_STACKDUMP
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extern void up_stackdump(void);
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extern void up_registerdump(void);
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#else
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# define up_stackdump()
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# define up_registerdump()
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __UP_INTERNAL_H */
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