Zeroday Hong / mbed-dev

mbed library sources. Supersedes mbed-src.

Fork of mbed-dev by mbed official

platform/mbed_semihost_api.h@160:d5399cc887bb, 2017-03-14 (annotated)

Committer:
<>
Date:
Tue Mar 14 16:40:56 2017 +0000
Revision:
160:d5399cc887bb
This updates the lib to the mbed lib v138

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 160:d5399cc887bb 1
<> 160:d5399cc887bb 2 /** \addtogroup platform */
<> 160:d5399cc887bb 3 /** @{*/
<> 160:d5399cc887bb 4 /* mbed Microcontroller Library
<> 160:d5399cc887bb 5 * Copyright (c) 2006-2013 ARM Limited
<> 160:d5399cc887bb 6 *
<> 160:d5399cc887bb 7 * Licensed under the Apache License, Version 2.0 (the "License");
<> 160:d5399cc887bb 8 * you may not use this file except in compliance with the License.
<> 160:d5399cc887bb 9 * You may obtain a copy of the License at
<> 160:d5399cc887bb 10 *
<> 160:d5399cc887bb 11 * http://www.apache.org/licenses/LICENSE-2.0
<> 160:d5399cc887bb 12 *
<> 160:d5399cc887bb 13 * Unless required by applicable law or agreed to in writing, software
<> 160:d5399cc887bb 14 * distributed under the License is distributed on an "AS IS" BASIS,
<> 160:d5399cc887bb 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 160:d5399cc887bb 16 * See the License for the specific language governing permissions and
<> 160:d5399cc887bb 17 * limitations under the License.
<> 160:d5399cc887bb 18 */
<> 160:d5399cc887bb 19 #ifndef MBED_SEMIHOST_H
<> 160:d5399cc887bb 20 #define MBED_SEMIHOST_H
<> 160:d5399cc887bb 21
<> 160:d5399cc887bb 22 #include "device.h"
<> 160:d5399cc887bb 23 #include "platform/mbed_toolchain.h"
<> 160:d5399cc887bb 24
<> 160:d5399cc887bb 25 #ifdef __cplusplus
<> 160:d5399cc887bb 26 extern "C" {
<> 160:d5399cc887bb 27 #endif
<> 160:d5399cc887bb 28
<> 160:d5399cc887bb 29 #if DEVICE_SEMIHOST
<> 160:d5399cc887bb 30
<> 160:d5399cc887bb 31 #ifndef __CC_ARM
<> 160:d5399cc887bb 32
<> 160:d5399cc887bb 33 #if defined(__ICCARM__)
<> 160:d5399cc887bb 34 static inline int __semihost(int reason, const void *arg) {
<> 160:d5399cc887bb 35 return __semihosting(reason, (void*)arg);
<> 160:d5399cc887bb 36 }
<> 160:d5399cc887bb 37 #else
<> 160:d5399cc887bb 38
<> 160:d5399cc887bb 39 #ifdef __thumb__
<> 160:d5399cc887bb 40 # define AngelSWI 0xAB
<> 160:d5399cc887bb 41 # define AngelSWIInsn "bkpt"
<> 160:d5399cc887bb 42 # define AngelSWIAsm bkpt
<> 160:d5399cc887bb 43 #else
<> 160:d5399cc887bb 44 # define AngelSWI 0x123456
<> 160:d5399cc887bb 45 # define AngelSWIInsn "swi"
<> 160:d5399cc887bb 46 # define AngelSWIAsm swi
<> 160:d5399cc887bb 47 #endif
<> 160:d5399cc887bb 48
<> 160:d5399cc887bb 49 static inline int __semihost(int reason, const void *arg) {
<> 160:d5399cc887bb 50 int value;
<> 160:d5399cc887bb 51
<> 160:d5399cc887bb 52 asm volatile (
<> 160:d5399cc887bb 53 "mov r0, %1" "\n\t"
<> 160:d5399cc887bb 54 "mov r1, %2" "\n\t"
<> 160:d5399cc887bb 55 AngelSWIInsn " %a3" "\n\t"
<> 160:d5399cc887bb 56 "mov %0, r0"
<> 160:d5399cc887bb 57 : "=r" (value) /* output operands */
<> 160:d5399cc887bb 58 : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
<> 160:d5399cc887bb 59 : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
<> 160:d5399cc887bb 60 );
<> 160:d5399cc887bb 61
<> 160:d5399cc887bb 62 return value;
<> 160:d5399cc887bb 63 }
<> 160:d5399cc887bb 64 #endif
<> 160:d5399cc887bb 65 #endif
<> 160:d5399cc887bb 66
<> 160:d5399cc887bb 67 #if DEVICE_LOCALFILESYSTEM
<> 160:d5399cc887bb 68 FILEHANDLE semihost_open(const char* name, int openmode);
<> 160:d5399cc887bb 69 int semihost_close (FILEHANDLE fh);
<> 160:d5399cc887bb 70 int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
<> 160:d5399cc887bb 71 int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
<> 160:d5399cc887bb 72 int semihost_ensure(FILEHANDLE fh);
<> 160:d5399cc887bb 73 long semihost_flen (FILEHANDLE fh);
<> 160:d5399cc887bb 74 int semihost_seek (FILEHANDLE fh, long position);
<> 160:d5399cc887bb 75 int semihost_istty (FILEHANDLE fh);
<> 160:d5399cc887bb 76
<> 160:d5399cc887bb 77 int semihost_remove(const char *name);
<> 160:d5399cc887bb 78 int semihost_rename(const char *old_name, const char *new_name);
<> 160:d5399cc887bb 79 #endif
<> 160:d5399cc887bb 80
<> 160:d5399cc887bb 81 int semihost_uid(char *uid);
<> 160:d5399cc887bb 82 int semihost_reset(void);
<> 160:d5399cc887bb 83 int semihost_vbus(void);
<> 160:d5399cc887bb 84 int semihost_powerdown(void);
<> 160:d5399cc887bb 85 int semihost_exit(void);
<> 160:d5399cc887bb 86
<> 160:d5399cc887bb 87 int semihost_connected(void);
<> 160:d5399cc887bb 88 int semihost_disabledebug(void);
<> 160:d5399cc887bb 89
<> 160:d5399cc887bb 90 #endif
<> 160:d5399cc887bb 91
<> 160:d5399cc887bb 92 #ifdef __cplusplus
<> 160:d5399cc887bb 93 }
<> 160:d5399cc887bb 94 #endif
<> 160:d5399cc887bb 95
<> 160:d5399cc887bb 96 #endif
<> 160:d5399cc887bb 97
<> 160:d5399cc887bb 98 /** @}*/