Vladimir Vana / mbed

pro vyuku PSS v Jecne

semihost_api.h@0:23d1f73bf130, 2017-09-24 (annotated)

Committer:
vladvana
Date:
Sun Sep 24 12:31:52 2017 +0000
Revision:
0:23d1f73bf130
podklady pro cviceni z PSS

Who changed what in which revision?

UserRevisionLine numberNew contents of line
vladvana 0:23d1f73bf130 1 /* mbed Microcontroller Library
vladvana 0:23d1f73bf130 2 * Copyright (c) 2006-2013 ARM Limited
vladvana 0:23d1f73bf130 3 *
vladvana 0:23d1f73bf130 4 * Licensed under the Apache License, Version 2.0 (the "License");
vladvana 0:23d1f73bf130 5 * you may not use this file except in compliance with the License.
vladvana 0:23d1f73bf130 6 * You may obtain a copy of the License at
vladvana 0:23d1f73bf130 7 *
vladvana 0:23d1f73bf130 8 * http://www.apache.org/licenses/LICENSE-2.0
vladvana 0:23d1f73bf130 9 *
vladvana 0:23d1f73bf130 10 * Unless required by applicable law or agreed to in writing, software
vladvana 0:23d1f73bf130 11 * distributed under the License is distributed on an "AS IS" BASIS,
vladvana 0:23d1f73bf130 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
vladvana 0:23d1f73bf130 13 * See the License for the specific language governing permissions and
vladvana 0:23d1f73bf130 14 * limitations under the License.
vladvana 0:23d1f73bf130 15 */
vladvana 0:23d1f73bf130 16 #ifndef MBED_SEMIHOST_H
vladvana 0:23d1f73bf130 17 #define MBED_SEMIHOST_H
vladvana 0:23d1f73bf130 18
vladvana 0:23d1f73bf130 19 #include "device.h"
vladvana 0:23d1f73bf130 20 #include "toolchain.h"
vladvana 0:23d1f73bf130 21
vladvana 0:23d1f73bf130 22 #ifdef __cplusplus
vladvana 0:23d1f73bf130 23 extern "C" {
vladvana 0:23d1f73bf130 24 #endif
vladvana 0:23d1f73bf130 25
vladvana 0:23d1f73bf130 26 #if DEVICE_SEMIHOST
vladvana 0:23d1f73bf130 27
vladvana 0:23d1f73bf130 28 #ifndef __CC_ARM
vladvana 0:23d1f73bf130 29
vladvana 0:23d1f73bf130 30 #if defined(__ICCARM__)
vladvana 0:23d1f73bf130 31 inline int __semihost(int reason, const void *arg) {
vladvana 0:23d1f73bf130 32 return __semihosting(reason, (void*)arg);
vladvana 0:23d1f73bf130 33 }
vladvana 0:23d1f73bf130 34 #else
vladvana 0:23d1f73bf130 35
vladvana 0:23d1f73bf130 36 #ifdef __thumb__
vladvana 0:23d1f73bf130 37 # define AngelSWI 0xAB
vladvana 0:23d1f73bf130 38 # define AngelSWIInsn "bkpt"
vladvana 0:23d1f73bf130 39 # define AngelSWIAsm bkpt
vladvana 0:23d1f73bf130 40 #else
vladvana 0:23d1f73bf130 41 # define AngelSWI 0x123456
vladvana 0:23d1f73bf130 42 # define AngelSWIInsn "swi"
vladvana 0:23d1f73bf130 43 # define AngelSWIAsm swi
vladvana 0:23d1f73bf130 44 #endif
vladvana 0:23d1f73bf130 45
vladvana 0:23d1f73bf130 46 static inline int __semihost(int reason, const void *arg) {
vladvana 0:23d1f73bf130 47 int value;
vladvana 0:23d1f73bf130 48
vladvana 0:23d1f73bf130 49 asm volatile (
vladvana 0:23d1f73bf130 50 "mov r0, %1" "\n\t"
vladvana 0:23d1f73bf130 51 "mov r1, %2" "\n\t"
vladvana 0:23d1f73bf130 52 AngelSWIInsn " %a3" "\n\t"
vladvana 0:23d1f73bf130 53 "mov %0, r0"
vladvana 0:23d1f73bf130 54 : "=r" (value) /* output operands */
vladvana 0:23d1f73bf130 55 : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
vladvana 0:23d1f73bf130 56 : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
vladvana 0:23d1f73bf130 57 );
vladvana 0:23d1f73bf130 58
vladvana 0:23d1f73bf130 59 return value;
vladvana 0:23d1f73bf130 60 }
vladvana 0:23d1f73bf130 61 #endif
vladvana 0:23d1f73bf130 62 #endif
vladvana 0:23d1f73bf130 63
vladvana 0:23d1f73bf130 64 #if DEVICE_LOCALFILESYSTEM
vladvana 0:23d1f73bf130 65 FILEHANDLE semihost_open(const char* name, int openmode);
vladvana 0:23d1f73bf130 66 int semihost_close (FILEHANDLE fh);
vladvana 0:23d1f73bf130 67 int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
vladvana 0:23d1f73bf130 68 int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
vladvana 0:23d1f73bf130 69 int semihost_ensure(FILEHANDLE fh);
vladvana 0:23d1f73bf130 70 long semihost_flen (FILEHANDLE fh);
vladvana 0:23d1f73bf130 71 int semihost_seek (FILEHANDLE fh, long position);
vladvana 0:23d1f73bf130 72 int semihost_istty (FILEHANDLE fh);
vladvana 0:23d1f73bf130 73
vladvana 0:23d1f73bf130 74 int semihost_remove(const char *name);
vladvana 0:23d1f73bf130 75 int semihost_rename(const char *old_name, const char *new_name);
vladvana 0:23d1f73bf130 76 #endif
vladvana 0:23d1f73bf130 77
vladvana 0:23d1f73bf130 78 int semihost_uid(char *uid);
vladvana 0:23d1f73bf130 79 int semihost_reset(void);
vladvana 0:23d1f73bf130 80 int semihost_vbus(void);
vladvana 0:23d1f73bf130 81 int semihost_powerdown(void);
vladvana 0:23d1f73bf130 82 int semihost_exit(void);
vladvana 0:23d1f73bf130 83
vladvana 0:23d1f73bf130 84 int semihost_connected(void);
vladvana 0:23d1f73bf130 85 int semihost_disabledebug(void);
vladvana 0:23d1f73bf130 86
vladvana 0:23d1f73bf130 87 #endif
vladvana 0:23d1f73bf130 88
vladvana 0:23d1f73bf130 89 #ifdef __cplusplus
vladvana 0:23d1f73bf130 90 }
vladvana 0:23d1f73bf130 91 #endif
vladvana 0:23d1f73bf130 92
vladvana 0:23d1f73bf130 93 #endif