237 lines
7.1 KiB
C
Executable File
237 lines
7.1 KiB
C
Executable File
/****************************************************************************
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* arch/hc/src/common/up_internal.h
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*
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* Copyright (C) 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 <nuttx/config.h>
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#ifndef __ASSEMBLY__
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# include <stdint.h>
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#endif
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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 /* DEFINED: Do not enable interrupts */
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#undef CONFIG_SUPPRESS_TIMER_INTS /* DEFINED: No timer */
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#undef CONFIG_SUPPRESS_SERIAL_INTS /* DEFINED: Console will poll */
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#undef CONFIG_SUPPRESS_UART_CONFIG /* DEFINED: Do not reconfig UART */
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#undef CONFIG_DUMP_ON_EXIT /* DEFINED: Dump task state on exit */
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/* Determine which (if any) console driver to use */
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#if !defined(CONFIG_DEV_CONSOLE) || CONFIG_NFILE_DESCRIPTORS <= 0
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# undef USE_SERIALDRIVER
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# undef USE_EARLYSERIALINIT
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# undef CONFIG_DEV_LOWCONSOLE
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# undef CONFIG_RAMLOG_CONSOLE
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#else
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# if defined(CONFIG_RAMLOG_CONSOLE)
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# undef USE_SERIALDRIVER
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# undef USE_EARLYSERIALINIT
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# undef CONFIG_DEV_LOWCONSOLE
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# elif defined(CONFIG_DEV_LOWCONSOLE)
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# undef USE_SERIALDRIVER
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# undef USE_EARLYSERIALINIT
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# else
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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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#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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/* Check if an interrupt stack size is configured */
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#ifndef CONFIG_ARCH_INTERRUPTSTACK
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# define CONFIG_ARCH_INTERRUPTSTACK 0
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#endif
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/* Macros to handle saving and restore interrupt state. In the current CPU12
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* model, the state is copied from the stack to the TCB, but only
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* a referenced is passed to get the state from the TCB.
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*/
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#define up_savestate(regs) up_copystate(regs, (uint8_t*)current_regs)
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#define up_restorestate(regs) (current_regs = 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 register storage
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* structure. If is non-NULL only during interrupt processing.
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*/
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extern volatile uint8_t *current_regs;
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/* This is the beginning of heap as provided from processor-specific logic.
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* This is the first address in RAM after the loaded program+bss+idle stack.
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* The end of the heap is CONFIG_DRAM_END
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*/
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extern uint16_t g_heapbase;
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/* Address of the saved user stack pointer */
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#if CONFIG_ARCH_INTERRUPTSTACK > 1
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extern uint32_t g_userstack;
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#endif
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/****************************************************************************
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* Inline Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/* Start-up functions */
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extern void up_boot(void);
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/* Context switching functions */
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extern void up_copystate(uint8_t *dest, uint8_t *src);
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extern void up_decodeirq(uint8_t *regs);
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extern void up_irqinitialize(void);
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extern int up_saveusercontext(uint8_t *saveregs);
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extern void up_fullcontextrestore(uint8_t *restoreregs) __attribute__ ((noreturn));
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extern void up_switchcontext(uint8_t *saveregs, uint8_t *restoreregs);
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/* Interrupt handling */
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extern uint8_t *up_doirq(int irq, uint8_t *regs);
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extern void up_maskack_irq(int irq);
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/* Signal handling */
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extern void up_sigdeliver(void);
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/* System timer initialization */
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extern void up_timerinit(void);
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extern int up_timerisr(int irq, uint32_t *regs);
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/* Debug output */
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#if CONFIG_NFILE_DESCRIPTORS > 0
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extern void up_earlyserialinit(void);
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extern void up_serialinit(void);
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#else
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# define up_earlyserialinit()
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# define up_serialinit()
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#endif
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#ifdef CONFIG_DEV_LOWCONSOLE
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extern void lowconsole_init(void);
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#else
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# define lowconsole_init()
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#endif
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extern void up_lowputc(char ch);
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extern void up_puts(const char *str);
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extern void up_lowputs(const char *str);
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/* Memory configuration */
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#if CONFIG_MM_REGIONS > 1
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void up_addregion(void);
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#else
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# define up_addregion()
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#endif
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/* Sub-system/driver initialization */
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#ifdef CONFIG_ARCH_DMA
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extern void weak_function up_dmainitialize(void);
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#endif
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extern void up_wdtinit(void);
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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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#ifdef CONFIG_USBDEV
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extern void up_usbinitialize(void);
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extern void up_usbuninitialize(void);
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#else
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# define up_usbinitialize()
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# define up_usbuninitialize()
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#endif
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/* Board-specific functions */
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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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#endif /* __ASSEMBLY__ */
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#endif /* __UP_INTERNAL_H */
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