Rahul Dahiya / Mbed OS STM32F7 Ethernet

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mbed-os/platform/mbed_semihost_api.h@0:fb8047b156bb, 2020-01-15 (annotated)

Committer:
rahul_dahiya
Date:
Wed Jan 15 15:57:15 2020 +0530
Revision:
0:fb8047b156bb
STM32F7 LWIP

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rahul_dahiya 0:fb8047b156bb 1
rahul_dahiya 0:fb8047b156bb 2 /* mbed Microcontroller Library
rahul_dahiya 0:fb8047b156bb 3 * Copyright (c) 2006-2013 ARM Limited
rahul_dahiya 0:fb8047b156bb 4 *
rahul_dahiya 0:fb8047b156bb 5 * Licensed under the Apache License, Version 2.0 (the "License");
rahul_dahiya 0:fb8047b156bb 6 * you may not use this file except in compliance with the License.
rahul_dahiya 0:fb8047b156bb 7 * You may obtain a copy of the License at
rahul_dahiya 0:fb8047b156bb 8 *
rahul_dahiya 0:fb8047b156bb 9 * http://www.apache.org/licenses/LICENSE-2.0
rahul_dahiya 0:fb8047b156bb 10 *
rahul_dahiya 0:fb8047b156bb 11 * Unless required by applicable law or agreed to in writing, software
rahul_dahiya 0:fb8047b156bb 12 * distributed under the License is distributed on an "AS IS" BASIS,
rahul_dahiya 0:fb8047b156bb 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rahul_dahiya 0:fb8047b156bb 14 * See the License for the specific language governing permissions and
rahul_dahiya 0:fb8047b156bb 15 * limitations under the License.
rahul_dahiya 0:fb8047b156bb 16 */
rahul_dahiya 0:fb8047b156bb 17 #ifndef MBED_SEMIHOST_H
rahul_dahiya 0:fb8047b156bb 18 #define MBED_SEMIHOST_H
rahul_dahiya 0:fb8047b156bb 19
rahul_dahiya 0:fb8047b156bb 20 #include "device.h"
rahul_dahiya 0:fb8047b156bb 21 #include "platform/mbed_toolchain.h"
rahul_dahiya 0:fb8047b156bb 22
rahul_dahiya 0:fb8047b156bb 23 #ifdef __cplusplus
rahul_dahiya 0:fb8047b156bb 24 extern "C" {
rahul_dahiya 0:fb8047b156bb 25 #endif
rahul_dahiya 0:fb8047b156bb 26
rahul_dahiya 0:fb8047b156bb 27 #if DEVICE_SEMIHOST
rahul_dahiya 0:fb8047b156bb 28
rahul_dahiya 0:fb8047b156bb 29 #if !defined(__CC_ARM) && !defined(__ARMCC_VERSION)
rahul_dahiya 0:fb8047b156bb 30
rahul_dahiya 0:fb8047b156bb 31 #if defined(__ICCARM__)
rahul_dahiya 0:fb8047b156bb 32 static inline int __semihost(int reason, const void *arg) {
rahul_dahiya 0:fb8047b156bb 33 return __semihosting(reason, (void*)arg);
rahul_dahiya 0:fb8047b156bb 34 }
rahul_dahiya 0:fb8047b156bb 35 #else
rahul_dahiya 0:fb8047b156bb 36
rahul_dahiya 0:fb8047b156bb 37 #ifdef __thumb__
rahul_dahiya 0:fb8047b156bb 38 # define AngelSWI 0xAB
rahul_dahiya 0:fb8047b156bb 39 # define AngelSWIInsn "bkpt"
rahul_dahiya 0:fb8047b156bb 40 # define AngelSWIAsm bkpt
rahul_dahiya 0:fb8047b156bb 41 #else
rahul_dahiya 0:fb8047b156bb 42 # define AngelSWI 0x123456
rahul_dahiya 0:fb8047b156bb 43 # define AngelSWIInsn "swi"
rahul_dahiya 0:fb8047b156bb 44 # define AngelSWIAsm swi
rahul_dahiya 0:fb8047b156bb 45 #endif
rahul_dahiya 0:fb8047b156bb 46
rahul_dahiya 0:fb8047b156bb 47 static inline int __semihost(int reason, const void *arg) {
rahul_dahiya 0:fb8047b156bb 48 int value;
rahul_dahiya 0:fb8047b156bb 49
rahul_dahiya 0:fb8047b156bb 50 asm volatile (
rahul_dahiya 0:fb8047b156bb 51 "mov r0, %1" "\n\t"
rahul_dahiya 0:fb8047b156bb 52 "mov r1, %2" "\n\t"
rahul_dahiya 0:fb8047b156bb 53 AngelSWIInsn " %a3" "\n\t"
rahul_dahiya 0:fb8047b156bb 54 "mov %0, r0"
rahul_dahiya 0:fb8047b156bb 55 : "=r" (value) /* output operands */
rahul_dahiya 0:fb8047b156bb 56 : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
rahul_dahiya 0:fb8047b156bb 57 : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
rahul_dahiya 0:fb8047b156bb 58 );
rahul_dahiya 0:fb8047b156bb 59
rahul_dahiya 0:fb8047b156bb 60 return value;
rahul_dahiya 0:fb8047b156bb 61 }
rahul_dahiya 0:fb8047b156bb 62 #endif
rahul_dahiya 0:fb8047b156bb 63 #endif
rahul_dahiya 0:fb8047b156bb 64
rahul_dahiya 0:fb8047b156bb 65 #if DEVICE_LOCALFILESYSTEM
rahul_dahiya 0:fb8047b156bb 66 FILEHANDLE semihost_open(const char* name, int openmode);
rahul_dahiya 0:fb8047b156bb 67 int semihost_close (FILEHANDLE fh);
rahul_dahiya 0:fb8047b156bb 68 int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
rahul_dahiya 0:fb8047b156bb 69 int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
rahul_dahiya 0:fb8047b156bb 70 int semihost_ensure(FILEHANDLE fh);
rahul_dahiya 0:fb8047b156bb 71 long semihost_flen (FILEHANDLE fh);
rahul_dahiya 0:fb8047b156bb 72 int semihost_seek (FILEHANDLE fh, long position);
rahul_dahiya 0:fb8047b156bb 73 int semihost_istty (FILEHANDLE fh);
rahul_dahiya 0:fb8047b156bb 74
rahul_dahiya 0:fb8047b156bb 75 int semihost_remove(const char *name);
rahul_dahiya 0:fb8047b156bb 76 int semihost_rename(const char *old_name, const char *new_name);
rahul_dahiya 0:fb8047b156bb 77 #endif
rahul_dahiya 0:fb8047b156bb 78
rahul_dahiya 0:fb8047b156bb 79 int semihost_uid(char *uid);
rahul_dahiya 0:fb8047b156bb 80 int semihost_reset(void);
rahul_dahiya 0:fb8047b156bb 81 int semihost_vbus(void);
rahul_dahiya 0:fb8047b156bb 82 int semihost_powerdown(void);
rahul_dahiya 0:fb8047b156bb 83 int semihost_exit(void);
rahul_dahiya 0:fb8047b156bb 84
rahul_dahiya 0:fb8047b156bb 85 int semihost_connected(void);
rahul_dahiya 0:fb8047b156bb 86 int semihost_disabledebug(void);
rahul_dahiya 0:fb8047b156bb 87
rahul_dahiya 0:fb8047b156bb 88 #endif
rahul_dahiya 0:fb8047b156bb 89
rahul_dahiya 0:fb8047b156bb 90 #ifdef __cplusplus
rahul_dahiya 0:fb8047b156bb 91 }
rahul_dahiya 0:fb8047b156bb 92 #endif
rahul_dahiya 0:fb8047b156bb 93
rahul_dahiya 0:fb8047b156bb 94 #endif
rahul_dahiya 0:fb8047b156bb 95
rahul_dahiya 0:fb8047b156bb 96