[352] | 1 |
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| 2 | /* mbed Microcontroller Library
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| 3 | * Copyright (c) 2006-2013 ARM Limited
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| 4 | *
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| 5 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 6 | * you may not use this file except in compliance with the License.
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| 7 | * You may obtain a copy of the License at
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| 8 | *
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| 9 | * http://www.apache.org/licenses/LICENSE-2.0
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| 10 | *
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| 11 | * Unless required by applicable law or agreed to in writing, software
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| 12 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 14 | * See the License for the specific language governing permissions and
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| 15 | * limitations under the License.
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| 16 | */
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| 17 | #ifndef MBED_SEMIHOST_H
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| 18 | #define MBED_SEMIHOST_H
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| 19 |
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| 20 | #include "device.h"
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| 21 | #include "platform/mbed_toolchain.h"
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| 22 |
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| 23 | #ifdef __cplusplus
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| 24 | extern "C" {
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| 25 | #endif
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| 26 |
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| 27 | #if DEVICE_SEMIHOST
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| 28 |
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[374] | 29 | #if !defined(__CC_ARM) && !defined(__ARMCC_VERSION)
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[352] | 30 |
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| 31 | #if defined(__ICCARM__)
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[374] | 32 | static inline int __semihost(int reason, const void *arg)
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| 33 | {
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[352] | 34 | return __semihosting(reason, (void*)arg);
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| 35 | }
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| 36 | #else
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| 37 |
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| 38 | #ifdef __thumb__
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| 39 | # define AngelSWI 0xAB
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| 40 | # define AngelSWIInsn "bkpt"
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| 41 | # define AngelSWIAsm bkpt
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| 42 | #else
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| 43 | # define AngelSWI 0x123456
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| 44 | # define AngelSWIInsn "swi"
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| 45 | # define AngelSWIAsm swi
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| 46 | #endif
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| 47 |
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[374] | 48 | static inline int __semihost(int reason, const void *arg)
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| 49 | {
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[352] | 50 | int value;
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| 51 |
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| 52 | asm volatile (
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| 53 | "mov r0, %1" "\n\t"
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| 54 | "mov r1, %2" "\n\t"
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| 55 | AngelSWIInsn " %a3" "\n\t"
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| 56 | "mov %0, r0"
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| 57 | : "=r" (value) /* output operands */
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| 58 | : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
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| 59 | : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
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| 60 | );
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| 61 |
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| 62 | return value;
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| 63 | }
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| 64 | #endif
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| 65 | #endif
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| 66 |
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| 67 | #if DEVICE_LOCALFILESYSTEM
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| 68 | FILEHANDLE semihost_open(const char* name, int openmode);
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| 69 | int semihost_close (FILEHANDLE fh);
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| 70 | int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
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| 71 | int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
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| 72 | int semihost_ensure(FILEHANDLE fh);
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| 73 | long semihost_flen (FILEHANDLE fh);
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| 74 | int semihost_seek (FILEHANDLE fh, long position);
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| 75 | int semihost_istty (FILEHANDLE fh);
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| 76 |
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| 77 | int semihost_remove(const char *name);
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| 78 | int semihost_rename(const char *old_name, const char *new_name);
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| 79 | #endif
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| 80 |
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| 81 | int semihost_uid(char *uid);
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| 82 | int semihost_reset(void);
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| 83 | int semihost_vbus(void);
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| 84 | int semihost_powerdown(void);
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| 85 | int semihost_exit(void);
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| 86 |
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| 87 | int semihost_connected(void);
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| 88 | int semihost_disabledebug(void);
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| 89 |
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| 90 | #endif
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| 91 |
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| 92 | #ifdef __cplusplus
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| 93 | }
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| 94 | #endif
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| 95 |
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| 96 | #endif
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| 97 |
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[374] | 98 |
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