joey shelton / LED_Demo2

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Dependencies:   MAX44000 PWM_Tone_Library nexpaq_mdk

Fork of LED_Demo by joey shelton

mbd_os/hal/api/semihost_api.h@9:6bb35cef007d, 2016-10-22 (annotated)

Committer:
cyberjoey
Date:
Sat Oct 22 01:31:58 2016 +0000
Revision:
9:6bb35cef007d
Parent:
1:55a6170b404f 
WORKING

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nexpaq 1:55a6170b404f 1 /* mbed Microcontroller Library
nexpaq 1:55a6170b404f 2 * Copyright (c) 2006-2013 ARM Limited
nexpaq 1:55a6170b404f 3 *
nexpaq 1:55a6170b404f 4 * Licensed under the Apache License, Version 2.0 (the "License");
nexpaq 1:55a6170b404f 5 * you may not use this file except in compliance with the License.
nexpaq 1:55a6170b404f 6 * You may obtain a copy of the License at
nexpaq 1:55a6170b404f 7 *
nexpaq 1:55a6170b404f 8 * http://www.apache.org/licenses/LICENSE-2.0
nexpaq 1:55a6170b404f 9 *
nexpaq 1:55a6170b404f 10 * Unless required by applicable law or agreed to in writing, software
nexpaq 1:55a6170b404f 11 * distributed under the License is distributed on an "AS IS" BASIS,
nexpaq 1:55a6170b404f 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
nexpaq 1:55a6170b404f 13 * See the License for the specific language governing permissions and
nexpaq 1:55a6170b404f 14 * limitations under the License.
nexpaq 1:55a6170b404f 15 */
nexpaq 1:55a6170b404f 16 #ifndef MBED_SEMIHOST_H
nexpaq 1:55a6170b404f 17 #define MBED_SEMIHOST_H
nexpaq 1:55a6170b404f 18
nexpaq 1:55a6170b404f 19 #include "device.h"
nexpaq 1:55a6170b404f 20 #include "toolchain.h"
nexpaq 1:55a6170b404f 21
nexpaq 1:55a6170b404f 22 #ifdef __cplusplus
nexpaq 1:55a6170b404f 23 extern "C" {
nexpaq 1:55a6170b404f 24 #endif
nexpaq 1:55a6170b404f 25
nexpaq 1:55a6170b404f 26 #if DEVICE_SEMIHOST
nexpaq 1:55a6170b404f 27
nexpaq 1:55a6170b404f 28 #ifndef __CC_ARM
nexpaq 1:55a6170b404f 29
nexpaq 1:55a6170b404f 30 #if defined(__ICCARM__)
nexpaq 1:55a6170b404f 31 static inline int __semihost(int reason, const void *arg) {
nexpaq 1:55a6170b404f 32 return __semihosting(reason, (void*)arg);
nexpaq 1:55a6170b404f 33 }
nexpaq 1:55a6170b404f 34 #else
nexpaq 1:55a6170b404f 35
nexpaq 1:55a6170b404f 36 #ifdef __thumb__
nexpaq 1:55a6170b404f 37 # define AngelSWI 0xAB
nexpaq 1:55a6170b404f 38 # define AngelSWIInsn "bkpt"
nexpaq 1:55a6170b404f 39 # define AngelSWIAsm bkpt
nexpaq 1:55a6170b404f 40 #else
nexpaq 1:55a6170b404f 41 # define AngelSWI 0x123456
nexpaq 1:55a6170b404f 42 # define AngelSWIInsn "swi"
nexpaq 1:55a6170b404f 43 # define AngelSWIAsm swi
nexpaq 1:55a6170b404f 44 #endif
nexpaq 1:55a6170b404f 45
nexpaq 1:55a6170b404f 46 static inline int __semihost(int reason, const void *arg) {
nexpaq 1:55a6170b404f 47 int value;
nexpaq 1:55a6170b404f 48
nexpaq 1:55a6170b404f 49 asm volatile (
nexpaq 1:55a6170b404f 50 "mov r0, %1" "\n\t"
nexpaq 1:55a6170b404f 51 "mov r1, %2" "\n\t"
nexpaq 1:55a6170b404f 52 AngelSWIInsn " %a3" "\n\t"
nexpaq 1:55a6170b404f 53 "mov %0, r0"
nexpaq 1:55a6170b404f 54 : "=r" (value) /* output operands */
nexpaq 1:55a6170b404f 55 : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
nexpaq 1:55a6170b404f 56 : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
nexpaq 1:55a6170b404f 57 );
nexpaq 1:55a6170b404f 58
nexpaq 1:55a6170b404f 59 return value;
nexpaq 1:55a6170b404f 60 }
nexpaq 1:55a6170b404f 61 #endif
nexpaq 1:55a6170b404f 62 #endif
nexpaq 1:55a6170b404f 63
nexpaq 1:55a6170b404f 64 #if DEVICE_LOCALFILESYSTEM
nexpaq 1:55a6170b404f 65 FILEHANDLE semihost_open(const char* name, int openmode);
nexpaq 1:55a6170b404f 66 int semihost_close (FILEHANDLE fh);
nexpaq 1:55a6170b404f 67 int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
nexpaq 1:55a6170b404f 68 int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
nexpaq 1:55a6170b404f 69 int semihost_ensure(FILEHANDLE fh);
nexpaq 1:55a6170b404f 70 long semihost_flen (FILEHANDLE fh);
nexpaq 1:55a6170b404f 71 int semihost_seek (FILEHANDLE fh, long position);
nexpaq 1:55a6170b404f 72 int semihost_istty (FILEHANDLE fh);
nexpaq 1:55a6170b404f 73
nexpaq 1:55a6170b404f 74 int semihost_remove(const char *name);
nexpaq 1:55a6170b404f 75 int semihost_rename(const char *old_name, const char *new_name);
nexpaq 1:55a6170b404f 76 #endif
nexpaq 1:55a6170b404f 77
nexpaq 1:55a6170b404f 78 int semihost_uid(char *uid);
nexpaq 1:55a6170b404f 79 int semihost_reset(void);
nexpaq 1:55a6170b404f 80 int semihost_vbus(void);
nexpaq 1:55a6170b404f 81 int semihost_powerdown(void);
nexpaq 1:55a6170b404f 82 int semihost_exit(void);
nexpaq 1:55a6170b404f 83
nexpaq 1:55a6170b404f 84 int semihost_connected(void);
nexpaq 1:55a6170b404f 85 int semihost_disabledebug(void);
nexpaq 1:55a6170b404f 86
nexpaq 1:55a6170b404f 87 #endif
nexpaq 1:55a6170b404f 88
nexpaq 1:55a6170b404f 89 #ifdef __cplusplus
nexpaq 1:55a6170b404f 90 }
nexpaq 1:55a6170b404f 91 #endif
nexpaq 1:55a6170b404f 92
nexpaq 1:55a6170b404f 93 #endif