Jhon Plantikow / I2C_EEPROM

I2C_EEPROM

semihost_api.h@0:ac8863619623, 2015-08-13 (annotated)

Committer:
jhon309
Date:
Thu Aug 13 00:23:16 2015 +0000
Revision:
0:ac8863619623
I2C

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jhon309 0:ac8863619623 1 /* mbed Microcontroller Library
jhon309 0:ac8863619623 2 * Copyright (c) 2006-2013 ARM Limited
jhon309 0:ac8863619623 3 *
jhon309 0:ac8863619623 4 * Licensed under the Apache License, Version 2.0 (the "License");
jhon309 0:ac8863619623 5 * you may not use this file except in compliance with the License.
jhon309 0:ac8863619623 6 * You may obtain a copy of the License at
jhon309 0:ac8863619623 7 *
jhon309 0:ac8863619623 8 * http://www.apache.org/licenses/LICENSE-2.0
jhon309 0:ac8863619623 9 *
jhon309 0:ac8863619623 10 * Unless required by applicable law or agreed to in writing, software
jhon309 0:ac8863619623 11 * distributed under the License is distributed on an "AS IS" BASIS,
jhon309 0:ac8863619623 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
jhon309 0:ac8863619623 13 * See the License for the specific language governing permissions and
jhon309 0:ac8863619623 14 * limitations under the License.
jhon309 0:ac8863619623 15 */
jhon309 0:ac8863619623 16 #ifndef MBED_SEMIHOST_H
jhon309 0:ac8863619623 17 #define MBED_SEMIHOST_H
jhon309 0:ac8863619623 18
jhon309 0:ac8863619623 19 #include "device.h"
jhon309 0:ac8863619623 20 #include "toolchain.h"
jhon309 0:ac8863619623 21
jhon309 0:ac8863619623 22 #ifdef __cplusplus
jhon309 0:ac8863619623 23 extern "C" {
jhon309 0:ac8863619623 24 #endif
jhon309 0:ac8863619623 25
jhon309 0:ac8863619623 26 #if DEVICE_SEMIHOST
jhon309 0:ac8863619623 27
jhon309 0:ac8863619623 28 #ifndef __CC_ARM
jhon309 0:ac8863619623 29
jhon309 0:ac8863619623 30 #if defined(__ICCARM__)
jhon309 0:ac8863619623 31 inline int __semihost(int reason, const void *arg) {
jhon309 0:ac8863619623 32 return __semihosting(reason, (void*)arg);
jhon309 0:ac8863619623 33 }
jhon309 0:ac8863619623 34 #else
jhon309 0:ac8863619623 35
jhon309 0:ac8863619623 36 #ifdef __thumb__
jhon309 0:ac8863619623 37 # define AngelSWI 0xAB
jhon309 0:ac8863619623 38 # define AngelSWIInsn "bkpt"
jhon309 0:ac8863619623 39 # define AngelSWIAsm bkpt
jhon309 0:ac8863619623 40 #else
jhon309 0:ac8863619623 41 # define AngelSWI 0x123456
jhon309 0:ac8863619623 42 # define AngelSWIInsn "swi"
jhon309 0:ac8863619623 43 # define AngelSWIAsm swi
jhon309 0:ac8863619623 44 #endif
jhon309 0:ac8863619623 45
jhon309 0:ac8863619623 46 static inline int __semihost(int reason, const void *arg) {
jhon309 0:ac8863619623 47 int value;
jhon309 0:ac8863619623 48
jhon309 0:ac8863619623 49 asm volatile (
jhon309 0:ac8863619623 50 "mov r0, %1" "\n\t"
jhon309 0:ac8863619623 51 "mov r1, %2" "\n\t"
jhon309 0:ac8863619623 52 AngelSWIInsn " %a3" "\n\t"
jhon309 0:ac8863619623 53 "mov %0, r0"
jhon309 0:ac8863619623 54 : "=r" (value) /* output operands */
jhon309 0:ac8863619623 55 : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
jhon309 0:ac8863619623 56 : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
jhon309 0:ac8863619623 57 );
jhon309 0:ac8863619623 58
jhon309 0:ac8863619623 59 return value;
jhon309 0:ac8863619623 60 }
jhon309 0:ac8863619623 61 #endif
jhon309 0:ac8863619623 62 #endif
jhon309 0:ac8863619623 63
jhon309 0:ac8863619623 64 #if DEVICE_LOCALFILESYSTEM
jhon309 0:ac8863619623 65 FILEHANDLE semihost_open(const char* name, int openmode);
jhon309 0:ac8863619623 66 int semihost_close (FILEHANDLE fh);
jhon309 0:ac8863619623 67 int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
jhon309 0:ac8863619623 68 int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
jhon309 0:ac8863619623 69 int semihost_ensure(FILEHANDLE fh);
jhon309 0:ac8863619623 70 long semihost_flen (FILEHANDLE fh);
jhon309 0:ac8863619623 71 int semihost_seek (FILEHANDLE fh, long position);
jhon309 0:ac8863619623 72 int semihost_istty (FILEHANDLE fh);
jhon309 0:ac8863619623 73
jhon309 0:ac8863619623 74 int semihost_remove(const char *name);
jhon309 0:ac8863619623 75 int semihost_rename(const char *old_name, const char *new_name);
jhon309 0:ac8863619623 76 #endif
jhon309 0:ac8863619623 77
jhon309 0:ac8863619623 78 int semihost_uid(char *uid);
jhon309 0:ac8863619623 79 int semihost_reset(void);
jhon309 0:ac8863619623 80 int semihost_vbus(void);
jhon309 0:ac8863619623 81 int semihost_powerdown(void);
jhon309 0:ac8863619623 82 int semihost_exit(void);
jhon309 0:ac8863619623 83
jhon309 0:ac8863619623 84 int semihost_connected(void);
jhon309 0:ac8863619623 85 int semihost_disabledebug(void);
jhon309 0:ac8863619623 86
jhon309 0:ac8863619623 87 #endif
jhon309 0:ac8863619623 88
jhon309 0:ac8863619623 89 #ifdef __cplusplus
jhon309 0:ac8863619623 90 }
jhon309 0:ac8863619623 91 #endif
jhon309 0:ac8863619623 92
jhon309 0:ac8863619623 93 #endif