c7382d9db9
Squashed commit of the following:
Author: Gregory Nutt <gnutt@nuttx.org>
Eliminate complaints from tools/nxstyle
Manually fix up kruft left behind by indent.sh
Raw application of tools/indent.sh to all new .c and .h files. Still need fixups.
Convert all C++ style comments to C style; Covery hex constants to lower case.
Convert TABs to spaces
Beginning of code review process. The first small dent.
configs/misoc: Rename os_start to nx_start.
arch/misoc/src/minerva/minerva_exit.c: Make name change to match change made to master.
Author: Ramtin Amin <keytwo@gmail.com>
configs/Kconfig and misoc/nsh/defconfig: Add support for the Verilator board.
Author: Juha Niskanen (Haltian) <juha.niskanen@haltian.com>
arch/arm/src/stm32l4/stm32l4_lse.c: Ports Jussi Kivilinna's recent STM32F7 LSE change to STM32L4.
Author: David Sidrane <david_s5@usa.net>
tools/.gitignore: Ignore new tool binaries.
Author: Ramtin Amin <keytwo@gmail.com>
arch/misoc/src/minerva: Initial merge of minera port.
209 lines
6.9 KiB
C
209 lines
6.9 KiB
C
/****************************************************************************
|
|
* arch/misoc/include/minerva/syscall.h
|
|
*
|
|
* Copyright (C) 2019 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
|
* Ramtin Amin <keytwo@gmail.com>
|
|
*
|
|
* 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.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/* This file should never be included directed but, rather, only indirectly
|
|
* through include/syscall.h or include/sys/sycall.h
|
|
*/
|
|
|
|
#ifndef __ARCH_MISOC_INCLUDE_MINERVA_SYSCALL_H
|
|
#define __ARCH_MISOC_INCLUDE_MINERVA_SYSCALL_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#ifndef __ASSEMBLY__
|
|
#include <stdint.h>
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
#define SYS_syscall 0x00
|
|
|
|
/* Configuration ************************************************************/
|
|
|
|
/* SYS call 1 and 2 are defined for internal use by the MINERVA port (see
|
|
* arch/miscoc/include/minerva/syscall.h). In addition, SYS call 3 is the
|
|
* return from a SYS call in kernel mode. The first four syscall values
|
|
* must, therefore, be reserved (0 is not used).
|
|
*/
|
|
|
|
#ifdef CONFIG_BUILD_KERNEL
|
|
# ifndef CONFIG_SYS_RESERVED
|
|
# error "CONFIG_SYS_RESERVED must be defined to the value 4"
|
|
# elif CONFIG_SYS_RESERVED != 4
|
|
# error "CONFIG_SYS_RESERVED must have the value 4"
|
|
# endif
|
|
#endif
|
|
|
|
/* sys_call macros **********************************************************/
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
/* Context switching system calls *******************************************/
|
|
|
|
/* SYS call 0: (not used) */
|
|
|
|
/* SYS call 1:
|
|
*
|
|
* void up_fullcontextrestore(uint32_t *restoreregs) noreturn_function;
|
|
*/
|
|
|
|
#define SYS_restore_context (1)
|
|
#define up_fullcontextrestore(restoreregs) \
|
|
(void)sys_call1(SYS_restore_context, (uintptr_t)restoreregs)
|
|
|
|
/* SYS call 2:
|
|
*
|
|
* void up_switchcontext(uint32_t *saveregs, uint32_t *restoreregs);
|
|
*/
|
|
|
|
#define SYS_switch_context (2)
|
|
#define up_switchcontext(saveregs, restoreregs) \
|
|
(void)sys_call2(SYS_switch_context, (uintptr_t)saveregs, \
|
|
(uintptr_t)restoreregs)
|
|
|
|
#ifdef CONFIG_BUILD_KERNEL
|
|
|
|
/* SYS call 3:
|
|
*
|
|
* void up_syscall_return(void);
|
|
*/
|
|
|
|
#define SYS_syscall_return (3)
|
|
#define up_syscall_return() (void)sys_call0(SYS_syscall_return)
|
|
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Types
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Inline functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
|
|
#ifdef __cplusplus
|
|
# define EXTERN extern "C"
|
|
extern "C"
|
|
{
|
|
#else
|
|
# define EXTERN extern
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: up_syscall0
|
|
*
|
|
* Description:
|
|
* System call SYS_ argument and no additional parameters.
|
|
*
|
|
****************************************************************************/
|
|
|
|
uintptr_t sys_call0(unsigned int nbr);
|
|
|
|
/****************************************************************************
|
|
* Name: up_syscall1
|
|
*
|
|
* Description:
|
|
* System call SYS_ argument and one additional parameter.
|
|
*
|
|
****************************************************************************/
|
|
|
|
uintptr_t sys_call1(unsigned int nbr, uintptr_t parm1);
|
|
|
|
/****************************************************************************
|
|
* Name: up_syscall2
|
|
*
|
|
* Description:
|
|
* System call SYS_ argument and two additional parameters.
|
|
*
|
|
****************************************************************************/
|
|
|
|
uintptr_t sys_call2(unsigned int nbr, uintptr_t parm1, uintptr_t parm2);
|
|
|
|
/****************************************************************************
|
|
* Name: up_syscall3
|
|
*
|
|
* Description:
|
|
* System call SYS_ argument and three additional parameters.
|
|
*
|
|
****************************************************************************/
|
|
|
|
uintptr_t sys_call3(unsigned int nbr, uintptr_t parm1, uintptr_t parm2,
|
|
uintptr_t parm3);
|
|
|
|
/****************************************************************************
|
|
* Name: up_syscall4
|
|
*
|
|
* Description:
|
|
* System call SYS_ argument and four additional parameters.
|
|
*
|
|
****************************************************************************/
|
|
|
|
uintptr_t sys_call4(unsigned int nbr, uintptr_t parm1, uintptr_t parm2,
|
|
uintptr_t parm3, uintptr_t parm4);
|
|
|
|
/****************************************************************************
|
|
* Name: up_syscall5
|
|
*
|
|
* Description:
|
|
* System call SYS_ argument and five additional parameters.
|
|
*
|
|
****************************************************************************/
|
|
|
|
uintptr_t sys_call5(unsigned int nbr, uintptr_t parm1, uintptr_t parm2,
|
|
uintptr_t parm3, uintptr_t parm4, uintptr_t parm5);
|
|
|
|
#undef EXTERN
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
#endif /* __ARCH_MISOC_INCLUDE_MINERVA_SYSCALL_H */
|