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platform/semihost_api.h@135:fce8a9387ed1, 2017-01-17 (annotated)

Committer:
kaoshen
Date:
Tue Jan 17 23:27:32 2017 +0000
Revision:
135:fce8a9387ed1
Parent:
128:9bcdf88f62b0 
333 ADS1115 ADC1

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 128:9bcdf88f62b0 1
<> 128:9bcdf88f62b0 2 /** \addtogroup platform */
<> 128:9bcdf88f62b0 3 /** @{*/
<> 128:9bcdf88f62b0 4 /* mbed Microcontroller Library
<> 128:9bcdf88f62b0 5 * Copyright (c) 2006-2013 ARM Limited
<> 128:9bcdf88f62b0 6 *
<> 128:9bcdf88f62b0 7 * Licensed under the Apache License, Version 2.0 (the "License");
<> 128:9bcdf88f62b0 8 * you may not use this file except in compliance with the License.
<> 128:9bcdf88f62b0 9 * You may obtain a copy of the License at
<> 128:9bcdf88f62b0 10 *
<> 128:9bcdf88f62b0 11 * http://www.apache.org/licenses/LICENSE-2.0
<> 128:9bcdf88f62b0 12 *
<> 128:9bcdf88f62b0 13 * Unless required by applicable law or agreed to in writing, software
<> 128:9bcdf88f62b0 14 * distributed under the License is distributed on an "AS IS" BASIS,
<> 128:9bcdf88f62b0 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 128:9bcdf88f62b0 16 * See the License for the specific language governing permissions and
<> 128:9bcdf88f62b0 17 * limitations under the License.
<> 128:9bcdf88f62b0 18 */
<> 128:9bcdf88f62b0 19 #ifndef MBED_SEMIHOST_H
<> 128:9bcdf88f62b0 20 #define MBED_SEMIHOST_H
<> 128:9bcdf88f62b0 21
<> 128:9bcdf88f62b0 22 #include "device.h"
<> 128:9bcdf88f62b0 23 #include "platform/toolchain.h"
<> 128:9bcdf88f62b0 24
<> 128:9bcdf88f62b0 25 #ifdef __cplusplus
<> 128:9bcdf88f62b0 26 extern "C" {
<> 128:9bcdf88f62b0 27 #endif
<> 128:9bcdf88f62b0 28
<> 128:9bcdf88f62b0 29 #if DEVICE_SEMIHOST
<> 128:9bcdf88f62b0 30
<> 128:9bcdf88f62b0 31 #ifndef __CC_ARM
<> 128:9bcdf88f62b0 32
<> 128:9bcdf88f62b0 33 #if defined(__ICCARM__)
<> 128:9bcdf88f62b0 34 static inline int __semihost(int reason, const void *arg) {
<> 128:9bcdf88f62b0 35 return __semihosting(reason, (void*)arg);
<> 128:9bcdf88f62b0 36 }
<> 128:9bcdf88f62b0 37 #else
<> 128:9bcdf88f62b0 38
<> 128:9bcdf88f62b0 39 #ifdef __thumb__
<> 128:9bcdf88f62b0 40 # define AngelSWI 0xAB
<> 128:9bcdf88f62b0 41 # define AngelSWIInsn "bkpt"
<> 128:9bcdf88f62b0 42 # define AngelSWIAsm bkpt
<> 128:9bcdf88f62b0 43 #else
<> 128:9bcdf88f62b0 44 # define AngelSWI 0x123456
<> 128:9bcdf88f62b0 45 # define AngelSWIInsn "swi"
<> 128:9bcdf88f62b0 46 # define AngelSWIAsm swi
<> 128:9bcdf88f62b0 47 #endif
<> 128:9bcdf88f62b0 48
<> 128:9bcdf88f62b0 49 static inline int __semihost(int reason, const void *arg) {
<> 128:9bcdf88f62b0 50 int value;
<> 128:9bcdf88f62b0 51
<> 128:9bcdf88f62b0 52 asm volatile (
<> 128:9bcdf88f62b0 53 "mov r0, %1" "\n\t"
<> 128:9bcdf88f62b0 54 "mov r1, %2" "\n\t"
<> 128:9bcdf88f62b0 55 AngelSWIInsn " %a3" "\n\t"
<> 128:9bcdf88f62b0 56 "mov %0, r0"
<> 128:9bcdf88f62b0 57 : "=r" (value) /* output operands */
<> 128:9bcdf88f62b0 58 : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
<> 128:9bcdf88f62b0 59 : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
<> 128:9bcdf88f62b0 60 );
<> 128:9bcdf88f62b0 61
<> 128:9bcdf88f62b0 62 return value;
<> 128:9bcdf88f62b0 63 }
<> 128:9bcdf88f62b0 64 #endif
<> 128:9bcdf88f62b0 65 #endif
<> 128:9bcdf88f62b0 66
<> 128:9bcdf88f62b0 67 #if DEVICE_LOCALFILESYSTEM
<> 128:9bcdf88f62b0 68 FILEHANDLE semihost_open(const char* name, int openmode);
<> 128:9bcdf88f62b0 69 int semihost_close (FILEHANDLE fh);
<> 128:9bcdf88f62b0 70 int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
<> 128:9bcdf88f62b0 71 int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
<> 128:9bcdf88f62b0 72 int semihost_ensure(FILEHANDLE fh);
<> 128:9bcdf88f62b0 73 long semihost_flen (FILEHANDLE fh);
<> 128:9bcdf88f62b0 74 int semihost_seek (FILEHANDLE fh, long position);
<> 128:9bcdf88f62b0 75 int semihost_istty (FILEHANDLE fh);
<> 128:9bcdf88f62b0 76
<> 128:9bcdf88f62b0 77 int semihost_remove(const char *name);
<> 128:9bcdf88f62b0 78 int semihost_rename(const char *old_name, const char *new_name);
<> 128:9bcdf88f62b0 79 #endif
<> 128:9bcdf88f62b0 80
<> 128:9bcdf88f62b0 81 int semihost_uid(char *uid);
<> 128:9bcdf88f62b0 82 int semihost_reset(void);
<> 128:9bcdf88f62b0 83 int semihost_vbus(void);
<> 128:9bcdf88f62b0 84 int semihost_powerdown(void);
<> 128:9bcdf88f62b0 85 int semihost_exit(void);
<> 128:9bcdf88f62b0 86
<> 128:9bcdf88f62b0 87 int semihost_connected(void);
<> 128:9bcdf88f62b0 88 int semihost_disabledebug(void);
<> 128:9bcdf88f62b0 89
<> 128:9bcdf88f62b0 90 #endif
<> 128:9bcdf88f62b0 91
<> 128:9bcdf88f62b0 92 #ifdef __cplusplus
<> 128:9bcdf88f62b0 93 }
<> 128:9bcdf88f62b0 94 #endif
<> 128:9bcdf88f62b0 95
<> 128:9bcdf88f62b0 96 #endif
<> 128:9bcdf88f62b0 97
<> 128:9bcdf88f62b0 98 /** @}*/