mbed library sources. Supersedes mbed-src.
Dependents: SPIne CH_Communicatuin_Test CH_Communicatuin_Test2 MCP_SPIne ... more
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Diff: platform/semihost_api.h
- Revision:
- 149:156823d33999
- Child:
- 160:d5399cc887bb
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/platform/semihost_api.h Fri Oct 28 11:17:30 2016 +0100 @@ -0,0 +1,98 @@ + +/** \addtogroup platform */ +/** @{*/ +/* mbed Microcontroller Library + * Copyright (c) 2006-2013 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#ifndef MBED_SEMIHOST_H +#define MBED_SEMIHOST_H + +#include "device.h" +#include "platform/toolchain.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#if DEVICE_SEMIHOST + +#ifndef __CC_ARM + +#if defined(__ICCARM__) +static inline int __semihost(int reason, const void *arg) { + return __semihosting(reason, (void*)arg); +} +#else + +#ifdef __thumb__ +# define AngelSWI 0xAB +# define AngelSWIInsn "bkpt" +# define AngelSWIAsm bkpt +#else +# define AngelSWI 0x123456 +# define AngelSWIInsn "swi" +# define AngelSWIAsm swi +#endif + +static inline int __semihost(int reason, const void *arg) { + int value; + + asm volatile ( + "mov r0, %1" "\n\t" + "mov r1, %2" "\n\t" + AngelSWIInsn " %a3" "\n\t" + "mov %0, r0" + : "=r" (value) /* output operands */ + : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */ + : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */ + ); + + return value; +} +#endif +#endif + +#if DEVICE_LOCALFILESYSTEM +FILEHANDLE semihost_open(const char* name, int openmode); +int semihost_close (FILEHANDLE fh); +int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode); +int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode); +int semihost_ensure(FILEHANDLE fh); +long semihost_flen (FILEHANDLE fh); +int semihost_seek (FILEHANDLE fh, long position); +int semihost_istty (FILEHANDLE fh); + +int semihost_remove(const char *name); +int semihost_rename(const char *old_name, const char *new_name); +#endif + +int semihost_uid(char *uid); +int semihost_reset(void); +int semihost_vbus(void); +int semihost_powerdown(void); +int semihost_exit(void); + +int semihost_connected(void); +int semihost_disabledebug(void); + +#endif + +#ifdef __cplusplus +} +#endif + +#endif + +/** @}*/