zhang boie / mbed-dev-f30333

mbed-dev-f303

platform/mbed_semihost_api.h@0:bdf663c61a82, 2022-06-14 (annotated)

Committer:
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4
Date:
Tue Jun 14 09:21:18 2022 +0000
Revision:
0:bdf663c61a82
lib

Who changed what in which revision?

UserRevisionLine numberNew contents of line
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 1
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 2 /** \addtogroup platform */
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 3 /** @{*/
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 4 /* mbed Microcontroller Library
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 5 * Copyright (c) 2006-2013 ARM Limited
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 6 *
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 7 * Licensed under the Apache License, Version 2.0 (the "License");
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 8 * you may not use this file except in compliance with the License.
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 9 * You may obtain a copy of the License at
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 10 *
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 11 * http://www.apache.org/licenses/LICENSE-2.0
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 12 *
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 13 * Unless required by applicable law or agreed to in writing, software
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 14 * distributed under the License is distributed on an "AS IS" BASIS,
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 16 * See the License for the specific language governing permissions and
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 17 * limitations under the License.
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 18 */
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 19 #ifndef MBED_SEMIHOST_H
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 20 #define MBED_SEMIHOST_H
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 21
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 22 #include "device.h"
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 23 #include "platform/mbed_toolchain.h"
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 24
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 25 #ifdef __cplusplus
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 26 extern "C" {
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 27 #endif
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 28
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 29 #if DEVICE_SEMIHOST
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 30
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 31 #if !defined(__CC_ARM) && !defined(__ARMCC_VERSION)
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 32
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 33 #if defined(__ICCARM__)
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 34 static inline int __semihost(int reason, const void *arg) {
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 35 return __semihosting(reason, (void*)arg);
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 36 }
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 37 #else
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 38
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 39 #ifdef __thumb__
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 40 # define AngelSWI 0xAB
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 41 # define AngelSWIInsn "bkpt"
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 42 # define AngelSWIAsm bkpt
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 43 #else
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 44 # define AngelSWI 0x123456
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 45 # define AngelSWIInsn "swi"
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 46 # define AngelSWIAsm swi
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 47 #endif
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 48
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 49 static inline int __semihost(int reason, const void *arg) {
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 50 int value;
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 51
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 52 asm volatile (
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 53 "mov r0, %1" "\n\t"
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 54 "mov r1, %2" "\n\t"
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 55 AngelSWIInsn " %a3" "\n\t"
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 56 "mov %0, r0"
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 57 : "=r" (value) /* output operands */
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 58 : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 59 : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 60 );
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 61
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 62 return value;
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 63 }
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 64 #endif
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 65 #endif
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 66
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 67 #if DEVICE_LOCALFILESYSTEM
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 68 FILEHANDLE semihost_open(const char* name, int openmode);
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 69 int semihost_close (FILEHANDLE fh);
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 70 int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 71 int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 72 int semihost_ensure(FILEHANDLE fh);
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 73 long semihost_flen (FILEHANDLE fh);
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 74 int semihost_seek (FILEHANDLE fh, long position);
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 75 int semihost_istty (FILEHANDLE fh);
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 76
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 77 int semihost_remove(const char *name);
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 78 int semihost_rename(const char *old_name, const char *new_name);
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 79 #endif
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 80
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 81 int semihost_uid(char *uid);
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 82 int semihost_reset(void);
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 83 int semihost_vbus(void);
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 84 int semihost_powerdown(void);
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 85 int semihost_exit(void);
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 86
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 87 int semihost_connected(void);
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 88 int semihost_disabledebug(void);
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 89
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 90 #endif
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 91
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 92 #ifdef __cplusplus
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 93 }
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 94 #endif
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 95
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 96 #endif
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 97
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 98 /** @}*/
abe5b02d-a2d4-4fe9-818e-c4e57c809ea4 0:bdf663c61a82 99