Geremia G / mbed-src

- fix F411 F334 systeminit when HSI used - portinout always read IDR regardless of port direction

Fork of mbed-src by mbed official

api/semihost_api.h@332:e299ae530e63, 2014-09-27 (annotated)

Committer:
Geremia
Date:
Sat Sep 27 11:16:28 2014 +0000
Revision:
332:e299ae530e63
Parent:
13:0645d8841f51 
- fix F411 F334 systeminit when HSI used; - STMs PortInOut port.read() always read input data register (real external pin state) even if direction is output (same as other platforms)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 13:0645d8841f51 1 /* mbed Microcontroller Library
bogdanm 13:0645d8841f51 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 13:0645d8841f51 3 *
bogdanm 13:0645d8841f51 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 13:0645d8841f51 5 * you may not use this file except in compliance with the License.
bogdanm 13:0645d8841f51 6 * You may obtain a copy of the License at
bogdanm 13:0645d8841f51 7 *
bogdanm 13:0645d8841f51 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 13:0645d8841f51 9 *
bogdanm 13:0645d8841f51 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 13:0645d8841f51 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 13:0645d8841f51 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 13:0645d8841f51 13 * See the License for the specific language governing permissions and
bogdanm 13:0645d8841f51 14 * limitations under the License.
bogdanm 13:0645d8841f51 15 */
bogdanm 13:0645d8841f51 16 #ifndef MBED_SEMIHOST_H
bogdanm 13:0645d8841f51 17 #define MBED_SEMIHOST_H
bogdanm 13:0645d8841f51 18
bogdanm 13:0645d8841f51 19 #include "device.h"
bogdanm 13:0645d8841f51 20 #include "toolchain.h"
bogdanm 13:0645d8841f51 21
bogdanm 13:0645d8841f51 22 #ifdef __cplusplus
bogdanm 13:0645d8841f51 23 extern "C" {
bogdanm 13:0645d8841f51 24 #endif
bogdanm 13:0645d8841f51 25
bogdanm 13:0645d8841f51 26 #if DEVICE_SEMIHOST
bogdanm 13:0645d8841f51 27
bogdanm 13:0645d8841f51 28 #ifndef __CC_ARM
bogdanm 13:0645d8841f51 29
bogdanm 13:0645d8841f51 30 #if defined(__ICCARM__)
bogdanm 13:0645d8841f51 31 inline int __semihost(int reason, const void *arg) {
bogdanm 13:0645d8841f51 32 return __semihosting(reason, (void*)arg);
bogdanm 13:0645d8841f51 33 }
bogdanm 13:0645d8841f51 34 #else
bogdanm 13:0645d8841f51 35
bogdanm 13:0645d8841f51 36 #ifdef __thumb__
bogdanm 13:0645d8841f51 37 # define AngelSWI 0xAB
bogdanm 13:0645d8841f51 38 # define AngelSWIInsn "bkpt"
bogdanm 13:0645d8841f51 39 # define AngelSWIAsm bkpt
bogdanm 13:0645d8841f51 40 #else
bogdanm 13:0645d8841f51 41 # define AngelSWI 0x123456
bogdanm 13:0645d8841f51 42 # define AngelSWIInsn "swi"
bogdanm 13:0645d8841f51 43 # define AngelSWIAsm swi
bogdanm 13:0645d8841f51 44 #endif
bogdanm 13:0645d8841f51 45
bogdanm 13:0645d8841f51 46 static inline int __semihost(int reason, const void *arg) {
bogdanm 13:0645d8841f51 47 int value;
bogdanm 13:0645d8841f51 48
bogdanm 13:0645d8841f51 49 asm volatile (
bogdanm 13:0645d8841f51 50 "mov r0, %1" "\n\t"
bogdanm 13:0645d8841f51 51 "mov r1, %2" "\n\t"
bogdanm 13:0645d8841f51 52 AngelSWIInsn " %a3" "\n\t"
bogdanm 13:0645d8841f51 53 "mov %0, r0"
bogdanm 13:0645d8841f51 54 : "=r" (value) /* output operands */
bogdanm 13:0645d8841f51 55 : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
bogdanm 13:0645d8841f51 56 : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
bogdanm 13:0645d8841f51 57 );
bogdanm 13:0645d8841f51 58
bogdanm 13:0645d8841f51 59 return value;
bogdanm 13:0645d8841f51 60 }
bogdanm 13:0645d8841f51 61 #endif
bogdanm 13:0645d8841f51 62 #endif
bogdanm 13:0645d8841f51 63
bogdanm 13:0645d8841f51 64 #if DEVICE_LOCALFILESYSTEM
bogdanm 13:0645d8841f51 65 FILEHANDLE semihost_open(const char* name, int openmode);
bogdanm 13:0645d8841f51 66 int semihost_close (FILEHANDLE fh);
bogdanm 13:0645d8841f51 67 int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
bogdanm 13:0645d8841f51 68 int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
bogdanm 13:0645d8841f51 69 int semihost_ensure(FILEHANDLE fh);
bogdanm 13:0645d8841f51 70 long semihost_flen (FILEHANDLE fh);
bogdanm 13:0645d8841f51 71 int semihost_seek (FILEHANDLE fh, long position);
bogdanm 13:0645d8841f51 72 int semihost_istty (FILEHANDLE fh);
bogdanm 13:0645d8841f51 73
bogdanm 13:0645d8841f51 74 int semihost_remove(const char *name);
bogdanm 13:0645d8841f51 75 int semihost_rename(const char *old_name, const char *new_name);
bogdanm 13:0645d8841f51 76 #endif
bogdanm 13:0645d8841f51 77
bogdanm 13:0645d8841f51 78 int semihost_uid(char *uid);
bogdanm 13:0645d8841f51 79 int semihost_reset(void);
bogdanm 13:0645d8841f51 80 int semihost_vbus(void);
bogdanm 13:0645d8841f51 81 int semihost_powerdown(void);
bogdanm 13:0645d8841f51 82 int semihost_exit(void);
bogdanm 13:0645d8841f51 83
bogdanm 13:0645d8841f51 84 int semihost_connected(void);
bogdanm 13:0645d8841f51 85 int semihost_disabledebug(void);
bogdanm 13:0645d8841f51 86
bogdanm 13:0645d8841f51 87 #endif
bogdanm 13:0645d8841f51 88
bogdanm 13:0645d8841f51 89 #ifdef __cplusplus
bogdanm 13:0645d8841f51 90 }
bogdanm 13:0645d8841f51 91 #endif
bogdanm 13:0645d8841f51 92
bogdanm 13:0645d8841f51 93 #endif