/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsARMFVP
*
* @brief This header file provides the semihosting API.
*/
/*
* Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
*
* 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.
*
* 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 _BSPS_ARM_FVP_SEMIHOSTING_H
#define _BSPS_ARM_FVP_SEMIHOSTING_H
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @addtogroup RTEMSBSPsARMFVP
*
* @{
*/
#define SYS_CLOCK 0x10
#define SYS_CLOSE 0x02
#define SYS_ELAPSED 0x30
#define SYS_ERRNO 0x13
#define SYS_EXIT 0x18
#define SYS_EXIT_EXTENDED 0x20
#define SYS_FLEN 0x0c
#define SYS_GET_CMDLINE 0x15
#define SYS_HEAPINFO 0x16
#define SYS_ISERROR 0x08
#define SYS_ISTTY 0x09
#define SYS_OPEN 0x01
#define SYS_READ 0x06
#define SYS_READC 0x07
#define SYS_REMOVE 0x0e
#define SYS_RENAME 0x0f
#define SYS_SEEK 0x0a
#define SYS_SYSTEM 0x12
#define SYS_TICKFREQ 0x31
#define SYS_TIME 0x11
#define SYS_TMPNAM 0x0d
#define SYS_WRITE 0x05
#define SYS_WRITEC 0x03
#define SYS_WRITE0 0x04
#define ADP_Stopped_BranchThroughZero 0x20000
#define ADP_Stopped_UndefinedInstr 0x20001
#define ADP_Stopped_SoftwareInterrupt 0x20002
#define ADP_Stopped_PrefetchAbort 0x20003
#define ADP_Stopped_DataAbort 0x20004
#define ADP_Stopped_AddressException 0x20005
#define ADP_Stopped_IRQ 0x20006
#define ADP_Stopped_FIQ 0x20007
#define ADP_Stopped_BreakPoint 0x20020
#define ADP_Stopped_WatchPoint 0x20021
#define ADP_Stopped_StepComplete 0x20022
#define ADP_Stopped_RunTimeErrorUnknown 0x20023
#define ADP_Stopped_InternalError 0x20024
#define ADP_Stopped_UserInterruption 0x20025
#define ADP_Stopped_ApplicationExit 0x20026
#define ADP_Stopped_StackOverflow 0x20027
#define ADP_Stopped_DivisionByZero 0x20028
#define ADP_Stopped_OSSpecific 0x20029
static inline uintptr_t arm_fvp_semihosting_call(
uintptr_t op,
uintptr_t params
)
{
register uintptr_t op_and_return_reg __asm__("r0");
register uintptr_t params_reg __asm__("r1");
op_and_return_reg = op;
params_reg = params;
__asm__ volatile (
#ifdef __thumb__
"svc #0xab"
#else
"svc #0x123456"
#endif
: "=r" (op_and_return_reg)
: "0" (op_and_return_reg), "r" (params_reg)
: "memory"
);
return op_and_return_reg;
}
void arm_fvp_console_output( char c );
int arm_fvp_console_input( void );
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* _BSPS_ARM_FVP_SEMIHOSTING_H */
