b3222bbc8a
Provide a user defined callback context for irq's, such that when registering a callback users can provide a pointer that will get passed back when the isr is called.
164 lines
5.4 KiB
C
164 lines
5.4 KiB
C
/****************************************************************************
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* arch/risc-v/src/common/up_internal.h
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*
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* Copyright (C) 2007-2015 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Modified for RISC-V:
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*
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* Copyright (C) 2016 Ken Pettit. All rights reserved.
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* Author: Ken Pettit <pettitkd@gmail.com>
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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 __ARCH_RISCV_SRC_COMMON_UP_INTERNAL_H
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#define __ARCH_RISCV_SRC_COMMON_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 <nuttx/compiler.h>
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# include <sys/types.h>
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# include <stdint.h>
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#endif
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* This is the value used to mark the stack for subsequent stack monitoring
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* logic.
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*/
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#define STACK_COLOR 0xdeadbeef
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#define INTSTACK_COLOR 0xdeadbeef
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#define HEAP_COLOR 'h'
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/* In the RISC_V model, the state is copied from the stack to the TCB, but
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* only 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, (uint32_t*)g_current_regs)
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#define up_restorestate(regs) (g_current_regs = regs)
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/* Determine which (if any) console driver to use. If a console is enabled
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* and no other console device is specified, then a serial console is
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* assumed.
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*/
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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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/****************************************************************************
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* Public Types
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****************************************************************************/
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/****************************************************************************
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* Public Variables
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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EXTERN volatile uint32_t *g_current_regs;
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EXTERN uint32_t g_idle_topstack;
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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#ifndef __ASSEMBLY__
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/* Low level initialization provided by board-level logic ******************/
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void up_boot(void);
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/* Memory allocation ********************************************************/
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void up_addregion(void);
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void up_allocat_eheap(FAR void **heap_start, size_t *heap_size);
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/* IRQ initialization *******************************************************/
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void up_irqinitialize(void);
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void up_copystate(uint32_t *dest, uint32_t *src);
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void up_dumpstate(void);
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void up_sigdeliver(void);
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int up_swint(int irq, FAR void *context, FAR void *arg);
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uint32_t up_get_newintctx(void);
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/* System timer *************************************************************/
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void riscv_timer_initialize(void);
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/* Low level serial output **************************************************/
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void up_lowputc(char ch);
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void up_puts(const char *str);
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void up_lowputs(const char *str);
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/* The OS start routine **************************************************/
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void os_start(void);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __ARCH_RISCV_SRC_COMMON_UP_INTERNAL_H */
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