Yihui Xiong / mbed-src-nrf51822

customized mbed library sources for nrf51822

Dependents:   Grove_Node Potentiometer BLE_Beacon I2C_Scanner

api/semihost_api.h@0:700cadd8b708, 2014-11-04 (annotated)

Committer:
yihui
Date:
Tue Nov 04 07:38:53 2014 +0000
Revision:
0:700cadd8b708
customized mbed-src library for nrf51822

Who changed what in which revision?

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yihui 0:700cadd8b708 1 /* mbed Microcontroller Library
yihui 0:700cadd8b708 2 * Copyright (c) 2006-2013 ARM Limited
yihui 0:700cadd8b708 3 *
yihui 0:700cadd8b708 4 * Licensed under the Apache License, Version 2.0 (the "License");
yihui 0:700cadd8b708 5 * you may not use this file except in compliance with the License.
yihui 0:700cadd8b708 6 * You may obtain a copy of the License at
yihui 0:700cadd8b708 7 *
yihui 0:700cadd8b708 8 * http://www.apache.org/licenses/LICENSE-2.0
yihui 0:700cadd8b708 9 *
yihui 0:700cadd8b708 10 * Unless required by applicable law or agreed to in writing, software
yihui 0:700cadd8b708 11 * distributed under the License is distributed on an "AS IS" BASIS,
yihui 0:700cadd8b708 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
yihui 0:700cadd8b708 13 * See the License for the specific language governing permissions and
yihui 0:700cadd8b708 14 * limitations under the License.
yihui 0:700cadd8b708 15 */
yihui 0:700cadd8b708 16 #ifndef MBED_SEMIHOST_H
yihui 0:700cadd8b708 17 #define MBED_SEMIHOST_H
yihui 0:700cadd8b708 18
yihui 0:700cadd8b708 19 #include "device.h"
yihui 0:700cadd8b708 20 #include "toolchain.h"
yihui 0:700cadd8b708 21
yihui 0:700cadd8b708 22 #ifdef __cplusplus
yihui 0:700cadd8b708 23 extern "C" {
yihui 0:700cadd8b708 24 #endif
yihui 0:700cadd8b708 25
yihui 0:700cadd8b708 26 #if DEVICE_SEMIHOST
yihui 0:700cadd8b708 27
yihui 0:700cadd8b708 28 #ifndef __CC_ARM
yihui 0:700cadd8b708 29
yihui 0:700cadd8b708 30 #if defined(__ICCARM__)
yihui 0:700cadd8b708 31 inline int __semihost(int reason, const void *arg) {
yihui 0:700cadd8b708 32 return __semihosting(reason, (void*)arg);
yihui 0:700cadd8b708 33 }
yihui 0:700cadd8b708 34 #else
yihui 0:700cadd8b708 35
yihui 0:700cadd8b708 36 #ifdef __thumb__
yihui 0:700cadd8b708 37 # define AngelSWI 0xAB
yihui 0:700cadd8b708 38 # define AngelSWIInsn "bkpt"
yihui 0:700cadd8b708 39 # define AngelSWIAsm bkpt
yihui 0:700cadd8b708 40 #else
yihui 0:700cadd8b708 41 # define AngelSWI 0x123456
yihui 0:700cadd8b708 42 # define AngelSWIInsn "swi"
yihui 0:700cadd8b708 43 # define AngelSWIAsm swi
yihui 0:700cadd8b708 44 #endif
yihui 0:700cadd8b708 45
yihui 0:700cadd8b708 46 static inline int __semihost(int reason, const void *arg) {
yihui 0:700cadd8b708 47 int value;
yihui 0:700cadd8b708 48
yihui 0:700cadd8b708 49 asm volatile (
yihui 0:700cadd8b708 50 "mov r0, %1" "\n\t"
yihui 0:700cadd8b708 51 "mov r1, %2" "\n\t"
yihui 0:700cadd8b708 52 AngelSWIInsn " %a3" "\n\t"
yihui 0:700cadd8b708 53 "mov %0, r0"
yihui 0:700cadd8b708 54 : "=r" (value) /* output operands */
yihui 0:700cadd8b708 55 : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
yihui 0:700cadd8b708 56 : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
yihui 0:700cadd8b708 57 );
yihui 0:700cadd8b708 58
yihui 0:700cadd8b708 59 return value;
yihui 0:700cadd8b708 60 }
yihui 0:700cadd8b708 61 #endif
yihui 0:700cadd8b708 62 #endif
yihui 0:700cadd8b708 63
yihui 0:700cadd8b708 64 #if DEVICE_LOCALFILESYSTEM
yihui 0:700cadd8b708 65 FILEHANDLE semihost_open(const char* name, int openmode);
yihui 0:700cadd8b708 66 int semihost_close (FILEHANDLE fh);
yihui 0:700cadd8b708 67 int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
yihui 0:700cadd8b708 68 int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
yihui 0:700cadd8b708 69 int semihost_ensure(FILEHANDLE fh);
yihui 0:700cadd8b708 70 long semihost_flen (FILEHANDLE fh);
yihui 0:700cadd8b708 71 int semihost_seek (FILEHANDLE fh, long position);
yihui 0:700cadd8b708 72 int semihost_istty (FILEHANDLE fh);
yihui 0:700cadd8b708 73
yihui 0:700cadd8b708 74 int semihost_remove(const char *name);
yihui 0:700cadd8b708 75 int semihost_rename(const char *old_name, const char *new_name);
yihui 0:700cadd8b708 76 #endif
yihui 0:700cadd8b708 77
yihui 0:700cadd8b708 78 int semihost_uid(char *uid);
yihui 0:700cadd8b708 79 int semihost_reset(void);
yihui 0:700cadd8b708 80 int semihost_vbus(void);
yihui 0:700cadd8b708 81 int semihost_powerdown(void);
yihui 0:700cadd8b708 82 int semihost_exit(void);
yihui 0:700cadd8b708 83
yihui 0:700cadd8b708 84 int semihost_connected(void);
yihui 0:700cadd8b708 85 int semihost_disabledebug(void);
yihui 0:700cadd8b708 86
yihui 0:700cadd8b708 87 #endif
yihui 0:700cadd8b708 88
yihui 0:700cadd8b708 89 #ifdef __cplusplus
yihui 0:700cadd8b708 90 }
yihui 0:700cadd8b708 91 #endif
yihui 0:700cadd8b708 92
yihui 0:700cadd8b708 93 #endif