anyThing Connected Team / mbed-dev

mbed library sources. Supersedes mbed-src.

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platform/mbed_semihost_api.h@178:79309dc6340a, 2017-11-23 (annotated)

Committer:
AnnaBridge
Date:
Thu Nov 23 11:57:25 2017 +0000
Revision:
178:79309dc6340a
Parent:
174:b96e65c34a4d 
mbed-dev library. Release version 156

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 160:d5399cc887bb 1
<> 160:d5399cc887bb 2 /* mbed Microcontroller Library
<> 160:d5399cc887bb 3 * Copyright (c) 2006-2013 ARM Limited
<> 160:d5399cc887bb 4 *
<> 160:d5399cc887bb 5 * Licensed under the Apache License, Version 2.0 (the "License");
<> 160:d5399cc887bb 6 * you may not use this file except in compliance with the License.
<> 160:d5399cc887bb 7 * You may obtain a copy of the License at
<> 160:d5399cc887bb 8 *
<> 160:d5399cc887bb 9 * http://www.apache.org/licenses/LICENSE-2.0
<> 160:d5399cc887bb 10 *
<> 160:d5399cc887bb 11 * Unless required by applicable law or agreed to in writing, software
<> 160:d5399cc887bb 12 * distributed under the License is distributed on an "AS IS" BASIS,
<> 160:d5399cc887bb 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 160:d5399cc887bb 14 * See the License for the specific language governing permissions and
<> 160:d5399cc887bb 15 * limitations under the License.
<> 160:d5399cc887bb 16 */
<> 160:d5399cc887bb 17 #ifndef MBED_SEMIHOST_H
<> 160:d5399cc887bb 18 #define MBED_SEMIHOST_H
<> 160:d5399cc887bb 19
<> 160:d5399cc887bb 20 #include "device.h"
<> 160:d5399cc887bb 21 #include "platform/mbed_toolchain.h"
<> 160:d5399cc887bb 22
<> 160:d5399cc887bb 23 #ifdef __cplusplus
<> 160:d5399cc887bb 24 extern "C" {
<> 160:d5399cc887bb 25 #endif
<> 160:d5399cc887bb 26
<> 160:d5399cc887bb 27 #if DEVICE_SEMIHOST
<> 160:d5399cc887bb 28
AnnaBridge 174:b96e65c34a4d 29 #if !defined(__CC_ARM) && !defined(__ARMCC_VERSION)
<> 160:d5399cc887bb 30
<> 160:d5399cc887bb 31 #if defined(__ICCARM__)
<> 160:d5399cc887bb 32 static inline int __semihost(int reason, const void *arg) {
<> 160:d5399cc887bb 33 return __semihosting(reason, (void*)arg);
<> 160:d5399cc887bb 34 }
<> 160:d5399cc887bb 35 #else
<> 160:d5399cc887bb 36
<> 160:d5399cc887bb 37 #ifdef __thumb__
<> 160:d5399cc887bb 38 # define AngelSWI 0xAB
<> 160:d5399cc887bb 39 # define AngelSWIInsn "bkpt"
<> 160:d5399cc887bb 40 # define AngelSWIAsm bkpt
<> 160:d5399cc887bb 41 #else
<> 160:d5399cc887bb 42 # define AngelSWI 0x123456
<> 160:d5399cc887bb 43 # define AngelSWIInsn "swi"
<> 160:d5399cc887bb 44 # define AngelSWIAsm swi
<> 160:d5399cc887bb 45 #endif
<> 160:d5399cc887bb 46
<> 160:d5399cc887bb 47 static inline int __semihost(int reason, const void *arg) {
<> 160:d5399cc887bb 48 int value;
<> 160:d5399cc887bb 49
<> 160:d5399cc887bb 50 asm volatile (
<> 160:d5399cc887bb 51 "mov r0, %1" "\n\t"
<> 160:d5399cc887bb 52 "mov r1, %2" "\n\t"
<> 160:d5399cc887bb 53 AngelSWIInsn " %a3" "\n\t"
<> 160:d5399cc887bb 54 "mov %0, r0"
<> 160:d5399cc887bb 55 : "=r" (value) /* output operands */
<> 160:d5399cc887bb 56 : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
<> 160:d5399cc887bb 57 : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
<> 160:d5399cc887bb 58 );
<> 160:d5399cc887bb 59
<> 160:d5399cc887bb 60 return value;
<> 160:d5399cc887bb 61 }
<> 160:d5399cc887bb 62 #endif
<> 160:d5399cc887bb 63 #endif
<> 160:d5399cc887bb 64
<> 160:d5399cc887bb 65 #if DEVICE_LOCALFILESYSTEM
<> 160:d5399cc887bb 66 FILEHANDLE semihost_open(const char* name, int openmode);
<> 160:d5399cc887bb 67 int semihost_close (FILEHANDLE fh);
<> 160:d5399cc887bb 68 int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
<> 160:d5399cc887bb 69 int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
<> 160:d5399cc887bb 70 int semihost_ensure(FILEHANDLE fh);
<> 160:d5399cc887bb 71 long semihost_flen (FILEHANDLE fh);
<> 160:d5399cc887bb 72 int semihost_seek (FILEHANDLE fh, long position);
<> 160:d5399cc887bb 73 int semihost_istty (FILEHANDLE fh);
<> 160:d5399cc887bb 74
<> 160:d5399cc887bb 75 int semihost_remove(const char *name);
<> 160:d5399cc887bb 76 int semihost_rename(const char *old_name, const char *new_name);
<> 160:d5399cc887bb 77 #endif
<> 160:d5399cc887bb 78
<> 160:d5399cc887bb 79 int semihost_uid(char *uid);
<> 160:d5399cc887bb 80 int semihost_reset(void);
<> 160:d5399cc887bb 81 int semihost_vbus(void);
<> 160:d5399cc887bb 82 int semihost_powerdown(void);
<> 160:d5399cc887bb 83 int semihost_exit(void);
<> 160:d5399cc887bb 84
<> 160:d5399cc887bb 85 int semihost_connected(void);
<> 160:d5399cc887bb 86 int semihost_disabledebug(void);
<> 160:d5399cc887bb 87
<> 160:d5399cc887bb 88 #endif
<> 160:d5399cc887bb 89
<> 160:d5399cc887bb 90 #ifdef __cplusplus
<> 160:d5399cc887bb 91 }
<> 160:d5399cc887bb 92 #endif
<> 160:d5399cc887bb 93
<> 160:d5399cc887bb 94 #endif
<> 160:d5399cc887bb 95
AnnaBridge 178:79309dc6340a 96