Greg Steiert / maxim_dev

Maxim mbed development library

Dependents:   sensomed

platform/semihost_api.h@0:0e018d759a2a, 2016-11-08 (annotated)

Committer:
switches
Date:
Tue Nov 08 18:27:11 2016 +0000
Revision:
0:0e018d759a2a
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
switches 0:0e018d759a2a 1
switches 0:0e018d759a2a 2 /** \addtogroup platform */
switches 0:0e018d759a2a 3 /** @{*/
switches 0:0e018d759a2a 4 /* mbed Microcontroller Library
switches 0:0e018d759a2a 5 * Copyright (c) 2006-2013 ARM Limited
switches 0:0e018d759a2a 6 *
switches 0:0e018d759a2a 7 * Licensed under the Apache License, Version 2.0 (the "License");
switches 0:0e018d759a2a 8 * you may not use this file except in compliance with the License.
switches 0:0e018d759a2a 9 * You may obtain a copy of the License at
switches 0:0e018d759a2a 10 *
switches 0:0e018d759a2a 11 * http://www.apache.org/licenses/LICENSE-2.0
switches 0:0e018d759a2a 12 *
switches 0:0e018d759a2a 13 * Unless required by applicable law or agreed to in writing, software
switches 0:0e018d759a2a 14 * distributed under the License is distributed on an "AS IS" BASIS,
switches 0:0e018d759a2a 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
switches 0:0e018d759a2a 16 * See the License for the specific language governing permissions and
switches 0:0e018d759a2a 17 * limitations under the License.
switches 0:0e018d759a2a 18 */
switches 0:0e018d759a2a 19 #ifndef MBED_SEMIHOST_H
switches 0:0e018d759a2a 20 #define MBED_SEMIHOST_H
switches 0:0e018d759a2a 21
switches 0:0e018d759a2a 22 #include "device.h"
switches 0:0e018d759a2a 23 #include "platform/toolchain.h"
switches 0:0e018d759a2a 24
switches 0:0e018d759a2a 25 #ifdef __cplusplus
switches 0:0e018d759a2a 26 extern "C" {
switches 0:0e018d759a2a 27 #endif
switches 0:0e018d759a2a 28
switches 0:0e018d759a2a 29 #if DEVICE_SEMIHOST
switches 0:0e018d759a2a 30
switches 0:0e018d759a2a 31 #ifndef __CC_ARM
switches 0:0e018d759a2a 32
switches 0:0e018d759a2a 33 #if defined(__ICCARM__)
switches 0:0e018d759a2a 34 static inline int __semihost(int reason, const void *arg) {
switches 0:0e018d759a2a 35 return __semihosting(reason, (void*)arg);
switches 0:0e018d759a2a 36 }
switches 0:0e018d759a2a 37 #else
switches 0:0e018d759a2a 38
switches 0:0e018d759a2a 39 #ifdef __thumb__
switches 0:0e018d759a2a 40 # define AngelSWI 0xAB
switches 0:0e018d759a2a 41 # define AngelSWIInsn "bkpt"
switches 0:0e018d759a2a 42 # define AngelSWIAsm bkpt
switches 0:0e018d759a2a 43 #else
switches 0:0e018d759a2a 44 # define AngelSWI 0x123456
switches 0:0e018d759a2a 45 # define AngelSWIInsn "swi"
switches 0:0e018d759a2a 46 # define AngelSWIAsm swi
switches 0:0e018d759a2a 47 #endif
switches 0:0e018d759a2a 48
switches 0:0e018d759a2a 49 static inline int __semihost(int reason, const void *arg) {
switches 0:0e018d759a2a 50 int value;
switches 0:0e018d759a2a 51
switches 0:0e018d759a2a 52 asm volatile (
switches 0:0e018d759a2a 53 "mov r0, %1" "\n\t"
switches 0:0e018d759a2a 54 "mov r1, %2" "\n\t"
switches 0:0e018d759a2a 55 AngelSWIInsn " %a3" "\n\t"
switches 0:0e018d759a2a 56 "mov %0, r0"
switches 0:0e018d759a2a 57 : "=r" (value) /* output operands */
switches 0:0e018d759a2a 58 : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
switches 0:0e018d759a2a 59 : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
switches 0:0e018d759a2a 60 );
switches 0:0e018d759a2a 61
switches 0:0e018d759a2a 62 return value;
switches 0:0e018d759a2a 63 }
switches 0:0e018d759a2a 64 #endif
switches 0:0e018d759a2a 65 #endif
switches 0:0e018d759a2a 66
switches 0:0e018d759a2a 67 #if DEVICE_LOCALFILESYSTEM
switches 0:0e018d759a2a 68 FILEHANDLE semihost_open(const char* name, int openmode);
switches 0:0e018d759a2a 69 int semihost_close (FILEHANDLE fh);
switches 0:0e018d759a2a 70 int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
switches 0:0e018d759a2a 71 int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
switches 0:0e018d759a2a 72 int semihost_ensure(FILEHANDLE fh);
switches 0:0e018d759a2a 73 long semihost_flen (FILEHANDLE fh);
switches 0:0e018d759a2a 74 int semihost_seek (FILEHANDLE fh, long position);
switches 0:0e018d759a2a 75 int semihost_istty (FILEHANDLE fh);
switches 0:0e018d759a2a 76
switches 0:0e018d759a2a 77 int semihost_remove(const char *name);
switches 0:0e018d759a2a 78 int semihost_rename(const char *old_name, const char *new_name);
switches 0:0e018d759a2a 79 #endif
switches 0:0e018d759a2a 80
switches 0:0e018d759a2a 81 int semihost_uid(char *uid);
switches 0:0e018d759a2a 82 int semihost_reset(void);
switches 0:0e018d759a2a 83 int semihost_vbus(void);
switches 0:0e018d759a2a 84 int semihost_powerdown(void);
switches 0:0e018d759a2a 85 int semihost_exit(void);
switches 0:0e018d759a2a 86
switches 0:0e018d759a2a 87 int semihost_connected(void);
switches 0:0e018d759a2a 88 int semihost_disabledebug(void);
switches 0:0e018d759a2a 89
switches 0:0e018d759a2a 90 #endif
switches 0:0e018d759a2a 91
switches 0:0e018d759a2a 92 #ifdef __cplusplus
switches 0:0e018d759a2a 93 }
switches 0:0e018d759a2a 94 #endif
switches 0:0e018d759a2a 95
switches 0:0e018d759a2a 96 #endif
switches 0:0e018d759a2a 97
switches 0:0e018d759a2a 98 /** @}*/