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/****************************************************************************
* common/up_internal.h
*
* Copyright (C) 2008 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* 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 NuttX nor the names of its 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.
*
****************************************************************************/
#ifndef __UP_INTERNAL_H
#define __UP_INTERNAL_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <arch/irq.h>
#include "chip/chip.h"
/****************************************************************************
* Definitions
****************************************************************************/
/* Bring-up debug configurations. These are here (vs defconfig)
* because these should only be controlled during low level
* board bring-up and not part of normal platform configuration.
*/
#undef CONFIG_SUPPRESS_INTERRUPTS /* Do not enable interrupts */
#undef CONFIG_SUPPRESS_TIMER_INTS /* No timer */
#undef CONFIG_SUPPRESS_SERIAL_INTS /* Console will poll */
#undef CONFIG_SUPPRESS_UART_CONFIG /* Do not reconfig UART */
#undef CONFIG_DUMP_ON_EXIT /* Dump task state on exit */
/* Determine which (if any) console driver to use */
#if defined(CONFIG_ARCH_LOWPUTC) || defined(CONFIG_ARCH_LOWGETC) || \
CONFIG_NFILE_DESCRIPTORS == 0 || defined(CONFIG_DEV_LOWCONSOLE)
# define CONFIG_USE_LOWCONSOLE 1
# define CONFIG_USE_LOWUARTINIT 1
#elif defined(CONFIG_DEV_CONSOLE) && CONFIG_NFILE_DESCRIPTORS > 0
# define CONFIG_USE_SERIALDRIVER 1
# define CONFIG_USE_EARLYSERIALINIT 1
#endif
/* Macros for portability */
#define IN_INTERRUPT (current_regs != NULL)
#define SAVE_IRQCONTEXT(tcb) up_copystate((tcb)->xcp.regs, current_regs)
#define SET_IRQCONTEXT(tcb) up_copystate(current_regs, (tcb)->xcp.regs)
#define SAVE_USERCONTEXT(tcb) up_saveusercontext((tcb)->xcp.regs)
#define RESTORE_USERCONTEXT(tcb) up_restoreusercontext((tcb)->xcp.regs)
#define SIGNAL_RETURN(regs) up_restoreusercontext(regs)
/****************************************************************************
* Public Types
****************************************************************************/
#ifndef __ASSEMBLY__
typedef void (*up_vector_t)(void);
#endif
/****************************************************************************
* Public Variables
****************************************************************************/
#ifndef __ASSEMBLY__
/* This holds a references to the current interrupt level
* register storage structure. If is non-NULL only during
* interrupt processing.
*/
extern FAR chipreg_t *current_regs;
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
#ifndef __ASSEMBLY__
/* Defined in files with the same name as the function */
extern void up_copystate(FAR chipreg_t *dest, FAR chipreg_t *src);
extern FAR chipreg_t *up_doirq(int irq, FAR chipreg_t *regs);
extern void up_restoreusercontext(FAR chipreg_t *regs);
extern void up_irqinitialize(void);
extern int up_saveusercontext(FAR chipreg_t *regs);
extern void up_sigdeliver(void);
extern int up_timerisr(int irq, FAR chipreg_t *regs);
#if defined(CONFIG_ARCH_LOWPUTC) || defined(CONFIG_ARCH_LOWGETC)
extern void up_lowputc(char ch);
#else
# define up_lowputc(ch)
#endif
/* Defined in up_allocateheap.c */
#if CONFIG_MM_REGIONS > 1
void up_addregion(void);
#endif
/* Defined in up_serial.c */
#ifdef CONFIG_USE_SERIALDRIVER
extern void up_earlyserialinit(void);
extern void up_serialinit(void);
#endif
#ifdef CONFIG_USE_LOWCONSOLE
extern void lowconsole_init(void);
#endif
/* Defined in up_timerisr.c */
extern void up_timerinit(void);
/* Defined in up_irq.c */
extern void up_maskack_irq(int irq);
/* Defined in board/up_leds.c */
#ifdef CONFIG_ARCH_LEDS
extern void up_ledinit(void);
extern void up_ledon(int led);
extern void up_ledoff(int led);
#else
# define up_ledinit()
# define up_ledon(led)
# define up_ledoff(led)
#endif
/* Defined in board/up_network.c */
#ifdef CONFIG_NET
extern void up_netinitialize(void);
#else
# define up_netinitialize()
#endif
/* Return the current value of the stack pointer (used in stack dump logic) */
extern chipreg_t up_getsp(void);
/* Dump stack and registers */
#ifdef CONFIG_ARCH_STACKDUMP
extern void up_stackdump(void);
extern void up_registerdump(void);
#else
# define up_stackdump()
# define up_registerdump()
#endif
#endif /* __ASSEMBLY__ */
#endif /* __UP_INTERNAL_H */
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