mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
Parent:
187:0387e8f68319
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 149:156823d33999 1 /* mbed Microcontroller Library
<> 149:156823d33999 2 * Copyright (c) 2006-2013 ARM Limited
AnnaBridge 189:f392fc9709a3 3 * SPDX-License-Identifier: Apache-2.0
<> 149:156823d33999 4 *
<> 149:156823d33999 5 * Licensed under the Apache License, Version 2.0 (the "License");
<> 149:156823d33999 6 * you may not use this file except in compliance with the License.
<> 149:156823d33999 7 * You may obtain a copy of the License at
<> 149:156823d33999 8 *
<> 149:156823d33999 9 * http://www.apache.org/licenses/LICENSE-2.0
<> 149:156823d33999 10 *
<> 149:156823d33999 11 * Unless required by applicable law or agreed to in writing, software
<> 149:156823d33999 12 * distributed under the License is distributed on an "AS IS" BASIS,
<> 149:156823d33999 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<> 149:156823d33999 14 * See the License for the specific language governing permissions and
<> 149:156823d33999 15 * limitations under the License.
<> 149:156823d33999 16 */
<> 149:156823d33999 17 #include "cmsis.h"
<> 160:d5399cc887bb 18 #include "platform/mbed_semihost_api.h"
<> 149:156823d33999 19
<> 149:156823d33999 20 #include <stdint.h>
<> 149:156823d33999 21 #include <string.h>
<> 149:156823d33999 22
<> 149:156823d33999 23 #if DEVICE_SEMIHOST
<> 149:156823d33999 24
<> 149:156823d33999 25 // ARM Semihosting Commands
<> 149:156823d33999 26 #define SYS_OPEN (0x1)
<> 149:156823d33999 27 #define SYS_CLOSE (0x2)
<> 149:156823d33999 28 #define SYS_WRITE (0x5)
<> 149:156823d33999 29 #define SYS_READ (0x6)
<> 149:156823d33999 30 #define SYS_ISTTY (0x9)
<> 149:156823d33999 31 #define SYS_SEEK (0xa)
<> 149:156823d33999 32 #define SYS_ENSURE (0xb)
<> 149:156823d33999 33 #define SYS_FLEN (0xc)
<> 149:156823d33999 34 #define SYS_REMOVE (0xe)
<> 149:156823d33999 35 #define SYS_RENAME (0xf)
<> 149:156823d33999 36 #define SYS_EXIT (0x18)
<> 149:156823d33999 37
<> 149:156823d33999 38 // mbed Semihosting Commands
<> 149:156823d33999 39 #define RESERVED_FOR_USER_APPLICATIONS (0x100) // 0x100 - 0x1ff
<> 149:156823d33999 40 #define USR_XFFIND (RESERVED_FOR_USER_APPLICATIONS + 0)
<> 149:156823d33999 41 #define USR_UID (RESERVED_FOR_USER_APPLICATIONS + 1)
<> 149:156823d33999 42 #define USR_RESET (RESERVED_FOR_USER_APPLICATIONS + 2)
<> 149:156823d33999 43 #define USR_VBUS (RESERVED_FOR_USER_APPLICATIONS + 3)
<> 149:156823d33999 44 #define USR_POWERDOWN (RESERVED_FOR_USER_APPLICATIONS + 4)
<> 149:156823d33999 45 #define USR_DISABLEDEBUG (RESERVED_FOR_USER_APPLICATIONS + 5)
<> 149:156823d33999 46
<> 149:156823d33999 47 #if DEVICE_LOCALFILESYSTEM
AnnaBridge 187:0387e8f68319 48 FILEHANDLE semihost_open(const char *name, int openmode)
AnnaBridge 187:0387e8f68319 49 {
<> 149:156823d33999 50 uint32_t args[3];
<> 149:156823d33999 51 args[0] = (uint32_t)name;
<> 149:156823d33999 52 args[1] = (uint32_t)openmode;
<> 149:156823d33999 53 args[2] = (uint32_t)strlen(name);
<> 149:156823d33999 54 return __semihost(SYS_OPEN, args);
<> 149:156823d33999 55 }
<> 149:156823d33999 56
AnnaBridge 187:0387e8f68319 57 int semihost_close(FILEHANDLE fh)
AnnaBridge 187:0387e8f68319 58 {
<> 149:156823d33999 59 return __semihost(SYS_CLOSE, &fh);
<> 149:156823d33999 60 }
<> 149:156823d33999 61
AnnaBridge 187:0387e8f68319 62 int semihost_write(FILEHANDLE fh, const unsigned char *buffer, unsigned int length, int mode)
AnnaBridge 187:0387e8f68319 63 {
AnnaBridge 187:0387e8f68319 64 if (length == 0) {
AnnaBridge 187:0387e8f68319 65 return 0;
AnnaBridge 187:0387e8f68319 66 }
<> 149:156823d33999 67
<> 149:156823d33999 68 uint32_t args[3];
<> 149:156823d33999 69 args[0] = (uint32_t)fh;
<> 149:156823d33999 70 args[1] = (uint32_t)buffer;
<> 149:156823d33999 71 args[2] = (uint32_t)length;
<> 149:156823d33999 72 return __semihost(SYS_WRITE, args);
<> 149:156823d33999 73 }
<> 149:156823d33999 74
AnnaBridge 187:0387e8f68319 75 int semihost_read(FILEHANDLE fh, unsigned char *buffer, unsigned int length, int mode)
AnnaBridge 187:0387e8f68319 76 {
<> 149:156823d33999 77 uint32_t args[3];
<> 149:156823d33999 78 args[0] = (uint32_t)fh;
<> 149:156823d33999 79 args[1] = (uint32_t)buffer;
<> 149:156823d33999 80 args[2] = (uint32_t)length;
<> 149:156823d33999 81 return __semihost(SYS_READ, args);
<> 149:156823d33999 82 }
<> 149:156823d33999 83
AnnaBridge 187:0387e8f68319 84 int semihost_istty(FILEHANDLE fh)
AnnaBridge 187:0387e8f68319 85 {
<> 149:156823d33999 86 return __semihost(SYS_ISTTY, &fh);
<> 149:156823d33999 87 }
<> 149:156823d33999 88
AnnaBridge 187:0387e8f68319 89 int semihost_seek(FILEHANDLE fh, long position)
AnnaBridge 187:0387e8f68319 90 {
<> 149:156823d33999 91 uint32_t args[2];
<> 149:156823d33999 92 args[0] = (uint32_t)fh;
<> 149:156823d33999 93 args[1] = (uint32_t)position;
<> 149:156823d33999 94 return __semihost(SYS_SEEK, args);
<> 149:156823d33999 95 }
<> 149:156823d33999 96
AnnaBridge 187:0387e8f68319 97 int semihost_ensure(FILEHANDLE fh)
AnnaBridge 187:0387e8f68319 98 {
<> 149:156823d33999 99 return __semihost(SYS_ENSURE, &fh);
<> 149:156823d33999 100 }
<> 149:156823d33999 101
AnnaBridge 187:0387e8f68319 102 long semihost_flen(FILEHANDLE fh)
AnnaBridge 187:0387e8f68319 103 {
<> 149:156823d33999 104 return __semihost(SYS_FLEN, &fh);
<> 149:156823d33999 105 }
<> 149:156823d33999 106
AnnaBridge 187:0387e8f68319 107 int semihost_remove(const char *name)
AnnaBridge 187:0387e8f68319 108 {
<> 149:156823d33999 109 uint32_t args[2];
<> 149:156823d33999 110 args[0] = (uint32_t)name;
<> 149:156823d33999 111 args[1] = (uint32_t)strlen(name);
<> 149:156823d33999 112 return __semihost(SYS_REMOVE, args);
<> 149:156823d33999 113 }
<> 149:156823d33999 114
AnnaBridge 187:0387e8f68319 115 int semihost_rename(const char *old_name, const char *new_name)
AnnaBridge 187:0387e8f68319 116 {
<> 149:156823d33999 117 uint32_t args[4];
<> 149:156823d33999 118 args[0] = (uint32_t)old_name;
<> 149:156823d33999 119 args[1] = (uint32_t)strlen(old_name);
<> 149:156823d33999 120 args[0] = (uint32_t)new_name;
<> 149:156823d33999 121 args[1] = (uint32_t)strlen(new_name);
<> 149:156823d33999 122 return __semihost(SYS_RENAME, args);
<> 149:156823d33999 123 }
<> 149:156823d33999 124 #endif
<> 149:156823d33999 125
AnnaBridge 187:0387e8f68319 126 int semihost_exit(void)
AnnaBridge 187:0387e8f68319 127 {
<> 149:156823d33999 128 uint32_t args[4];
<> 149:156823d33999 129 return __semihost(SYS_EXIT, args);
<> 149:156823d33999 130 }
<> 149:156823d33999 131
AnnaBridge 187:0387e8f68319 132 int semihost_uid(char *uid)
AnnaBridge 187:0387e8f68319 133 {
<> 149:156823d33999 134 uint32_t args[2];
<> 149:156823d33999 135 args[0] = (uint32_t)uid;
<> 149:156823d33999 136 args[1] = DEVICE_ID_LENGTH + 1;
<> 149:156823d33999 137 return __semihost(USR_UID, &args);
<> 149:156823d33999 138 }
<> 149:156823d33999 139
AnnaBridge 187:0387e8f68319 140 int semihost_reset(void)
AnnaBridge 187:0387e8f68319 141 {
<> 149:156823d33999 142 // Does not normally return, however if used with older firmware versions
<> 149:156823d33999 143 // that do not support this call it will return -1.
<> 149:156823d33999 144 return __semihost(USR_RESET, NULL);
<> 149:156823d33999 145 }
<> 149:156823d33999 146
AnnaBridge 187:0387e8f68319 147 int semihost_vbus(void)
AnnaBridge 187:0387e8f68319 148 {
<> 149:156823d33999 149 return __semihost(USR_VBUS, NULL);
<> 149:156823d33999 150 }
<> 149:156823d33999 151
AnnaBridge 187:0387e8f68319 152 int semihost_powerdown(void)
AnnaBridge 187:0387e8f68319 153 {
<> 149:156823d33999 154 return __semihost(USR_POWERDOWN, NULL);
<> 149:156823d33999 155 }
<> 149:156823d33999 156
<> 149:156823d33999 157 #if DEVICE_DEBUG_AWARENESS
<> 149:156823d33999 158
AnnaBridge 187:0387e8f68319 159 int semihost_connected(void)
AnnaBridge 187:0387e8f68319 160 {
<> 149:156823d33999 161 return (CoreDebug->DHCSR & CoreDebug_DHCSR_C_DEBUGEN_Msk) ? 1 : 0;
<> 149:156823d33999 162 }
<> 149:156823d33999 163
<> 149:156823d33999 164 #else
<> 149:156823d33999 165 // These processors cannot know if the interface is connect, assume so:
<> 149:156823d33999 166 static int is_debugger_attached = 1;
<> 149:156823d33999 167
AnnaBridge 187:0387e8f68319 168 int semihost_connected(void)
AnnaBridge 187:0387e8f68319 169 {
<> 149:156823d33999 170 return is_debugger_attached;
<> 149:156823d33999 171 }
<> 149:156823d33999 172 #endif
<> 149:156823d33999 173
AnnaBridge 187:0387e8f68319 174 int semihost_disabledebug(void)
AnnaBridge 187:0387e8f68319 175 {
<> 162:e13f6fdb2ac4 176 uint32_t args[1];
<> 149:156823d33999 177 #if !(DEVICE_DEBUG_AWARENESS)
<> 149:156823d33999 178 is_debugger_attached = 0;
<> 149:156823d33999 179 #endif
<> 162:e13f6fdb2ac4 180 return __semihost(USR_DISABLEDEBUG, &args);
<> 149:156823d33999 181 }
<> 149:156823d33999 182
<> 149:156823d33999 183 #endif
<> 149:156823d33999 184