Damian Gabino / picoGW_mcu

MCU driver/HAL for the Picocell Gateway concentrator board. The firmware implements either a USB CDC protocol or a UART protocol to bridge commands coming from host to the SX1308 SPI interface.

src/mbed-dev/api/semihost_api.h@0:c76361bd82e8, 2018-04-11 (annotated)

Committer:
dgabino
Date:
Wed Apr 11 14:42:47 2018 +0000
Revision:
0:c76361bd82e8
Initial commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dgabino 0:c76361bd82e8 1 /* mbed Microcontroller Library
dgabino 0:c76361bd82e8 2 * Copyright (c) 2006-2013 ARM Limited
dgabino 0:c76361bd82e8 3 *
dgabino 0:c76361bd82e8 4 * Licensed under the Apache License, Version 2.0 (the "License");
dgabino 0:c76361bd82e8 5 * you may not use this file except in compliance with the License.
dgabino 0:c76361bd82e8 6 * You may obtain a copy of the License at
dgabino 0:c76361bd82e8 7 *
dgabino 0:c76361bd82e8 8 * http://www.apache.org/licenses/LICENSE-2.0
dgabino 0:c76361bd82e8 9 *
dgabino 0:c76361bd82e8 10 * Unless required by applicable law or agreed to in writing, software
dgabino 0:c76361bd82e8 11 * distributed under the License is distributed on an "AS IS" BASIS,
dgabino 0:c76361bd82e8 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
dgabino 0:c76361bd82e8 13 * See the License for the specific language governing permissions and
dgabino 0:c76361bd82e8 14 * limitations under the License.
dgabino 0:c76361bd82e8 15 */
dgabino 0:c76361bd82e8 16 #ifndef MBED_SEMIHOST_H
dgabino 0:c76361bd82e8 17 #define MBED_SEMIHOST_H
dgabino 0:c76361bd82e8 18
dgabino 0:c76361bd82e8 19 #include "device.h"
dgabino 0:c76361bd82e8 20 #include "toolchain.h"
dgabino 0:c76361bd82e8 21
dgabino 0:c76361bd82e8 22 #ifdef __cplusplus
dgabino 0:c76361bd82e8 23 extern "C" {
dgabino 0:c76361bd82e8 24 #endif
dgabino 0:c76361bd82e8 25
dgabino 0:c76361bd82e8 26 #if DEVICE_SEMIHOST
dgabino 0:c76361bd82e8 27
dgabino 0:c76361bd82e8 28 #ifndef __CC_ARM
dgabino 0:c76361bd82e8 29
dgabino 0:c76361bd82e8 30 #if defined(__ICCARM__)
dgabino 0:c76361bd82e8 31 static inline int __semihost(int reason, const void *arg) {
dgabino 0:c76361bd82e8 32 return __semihosting(reason, (void*)arg);
dgabino 0:c76361bd82e8 33 }
dgabino 0:c76361bd82e8 34 #else
dgabino 0:c76361bd82e8 35
dgabino 0:c76361bd82e8 36 #ifdef __thumb__
dgabino 0:c76361bd82e8 37 # define AngelSWI 0xAB
dgabino 0:c76361bd82e8 38 # define AngelSWIInsn "bkpt"
dgabino 0:c76361bd82e8 39 # define AngelSWIAsm bkpt
dgabino 0:c76361bd82e8 40 #else
dgabino 0:c76361bd82e8 41 # define AngelSWI 0x123456
dgabino 0:c76361bd82e8 42 # define AngelSWIInsn "swi"
dgabino 0:c76361bd82e8 43 # define AngelSWIAsm swi
dgabino 0:c76361bd82e8 44 #endif
dgabino 0:c76361bd82e8 45
dgabino 0:c76361bd82e8 46 static inline int __semihost(int reason, const void *arg) {
dgabino 0:c76361bd82e8 47 int value;
dgabino 0:c76361bd82e8 48
dgabino 0:c76361bd82e8 49 asm volatile (
dgabino 0:c76361bd82e8 50 "mov r0, %1" "\n\t"
dgabino 0:c76361bd82e8 51 "mov r1, %2" "\n\t"
dgabino 0:c76361bd82e8 52 AngelSWIInsn " %a3" "\n\t"
dgabino 0:c76361bd82e8 53 "mov %0, r0"
dgabino 0:c76361bd82e8 54 : "=r" (value) /* output operands */
dgabino 0:c76361bd82e8 55 : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
dgabino 0:c76361bd82e8 56 : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
dgabino 0:c76361bd82e8 57 );
dgabino 0:c76361bd82e8 58
dgabino 0:c76361bd82e8 59 return value;
dgabino 0:c76361bd82e8 60 }
dgabino 0:c76361bd82e8 61 #endif
dgabino 0:c76361bd82e8 62 #endif
dgabino 0:c76361bd82e8 63
dgabino 0:c76361bd82e8 64 #if DEVICE_LOCALFILESYSTEM
dgabino 0:c76361bd82e8 65 FILEHANDLE semihost_open(const char* name, int openmode);
dgabino 0:c76361bd82e8 66 int semihost_close (FILEHANDLE fh);
dgabino 0:c76361bd82e8 67 int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
dgabino 0:c76361bd82e8 68 int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
dgabino 0:c76361bd82e8 69 int semihost_ensure(FILEHANDLE fh);
dgabino 0:c76361bd82e8 70 long semihost_flen (FILEHANDLE fh);
dgabino 0:c76361bd82e8 71 int semihost_seek (FILEHANDLE fh, long position);
dgabino 0:c76361bd82e8 72 int semihost_istty (FILEHANDLE fh);
dgabino 0:c76361bd82e8 73
dgabino 0:c76361bd82e8 74 int semihost_remove(const char *name);
dgabino 0:c76361bd82e8 75 int semihost_rename(const char *old_name, const char *new_name);
dgabino 0:c76361bd82e8 76 #endif
dgabino 0:c76361bd82e8 77
dgabino 0:c76361bd82e8 78 int semihost_uid(char *uid);
dgabino 0:c76361bd82e8 79 int semihost_reset(void);
dgabino 0:c76361bd82e8 80 int semihost_vbus(void);
dgabino 0:c76361bd82e8 81 int semihost_powerdown(void);
dgabino 0:c76361bd82e8 82 int semihost_exit(void);
dgabino 0:c76361bd82e8 83
dgabino 0:c76361bd82e8 84 int semihost_connected(void);
dgabino 0:c76361bd82e8 85 int semihost_disabledebug(void);
dgabino 0:c76361bd82e8 86
dgabino 0:c76361bd82e8 87 #endif
dgabino 0:c76361bd82e8 88
dgabino 0:c76361bd82e8 89 #ifdef __cplusplus
dgabino 0:c76361bd82e8 90 }
dgabino 0:c76361bd82e8 91 #endif
dgabino 0:c76361bd82e8 92
dgabino 0:c76361bd82e8 93 #endif