takashi kadono / Mbed OS Nucleo446_SSD1331

Color Oled(SSD1331) connect to STMicroelectronics Nucleo-F466

Dependencies:   ssd1331

mbed-os/platform/mbed_semihost_api.c@3:f3764f852aa8, 2018-10-11 (annotated)

Committer:
kadonotakashi
Date:
Thu Oct 11 02:27:46 2018 +0000
Revision:
3:f3764f852aa8
Parent:
0:8fdf9a60065b 
Nucreo 446 + SSD1331 test version;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kadonotakashi 0:8fdf9a60065b 1 /* mbed Microcontroller Library
kadonotakashi 0:8fdf9a60065b 2 * Copyright (c) 2006-2013 ARM Limited
kadonotakashi 0:8fdf9a60065b 3 *
kadonotakashi 0:8fdf9a60065b 4 * Licensed under the Apache License, Version 2.0 (the "License");
kadonotakashi 0:8fdf9a60065b 5 * you may not use this file except in compliance with the License.
kadonotakashi 0:8fdf9a60065b 6 * You may obtain a copy of the License at
kadonotakashi 0:8fdf9a60065b 7 *
kadonotakashi 0:8fdf9a60065b 8 * http://www.apache.org/licenses/LICENSE-2.0
kadonotakashi 0:8fdf9a60065b 9 *
kadonotakashi 0:8fdf9a60065b 10 * Unless required by applicable law or agreed to in writing, software
kadonotakashi 0:8fdf9a60065b 11 * distributed under the License is distributed on an "AS IS" BASIS,
kadonotakashi 0:8fdf9a60065b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
kadonotakashi 0:8fdf9a60065b 13 * See the License for the specific language governing permissions and
kadonotakashi 0:8fdf9a60065b 14 * limitations under the License.
kadonotakashi 0:8fdf9a60065b 15 */
kadonotakashi 0:8fdf9a60065b 16 #include "cmsis.h"
kadonotakashi 0:8fdf9a60065b 17 #include "platform/mbed_semihost_api.h"
kadonotakashi 0:8fdf9a60065b 18
kadonotakashi 0:8fdf9a60065b 19 #include <stdint.h>
kadonotakashi 0:8fdf9a60065b 20 #include <string.h>
kadonotakashi 0:8fdf9a60065b 21
kadonotakashi 0:8fdf9a60065b 22 #if DEVICE_SEMIHOST
kadonotakashi 0:8fdf9a60065b 23
kadonotakashi 0:8fdf9a60065b 24 // ARM Semihosting Commands
kadonotakashi 0:8fdf9a60065b 25 #define SYS_OPEN (0x1)
kadonotakashi 0:8fdf9a60065b 26 #define SYS_CLOSE (0x2)
kadonotakashi 0:8fdf9a60065b 27 #define SYS_WRITE (0x5)
kadonotakashi 0:8fdf9a60065b 28 #define SYS_READ (0x6)
kadonotakashi 0:8fdf9a60065b 29 #define SYS_ISTTY (0x9)
kadonotakashi 0:8fdf9a60065b 30 #define SYS_SEEK (0xa)
kadonotakashi 0:8fdf9a60065b 31 #define SYS_ENSURE (0xb)
kadonotakashi 0:8fdf9a60065b 32 #define SYS_FLEN (0xc)
kadonotakashi 0:8fdf9a60065b 33 #define SYS_REMOVE (0xe)
kadonotakashi 0:8fdf9a60065b 34 #define SYS_RENAME (0xf)
kadonotakashi 0:8fdf9a60065b 35 #define SYS_EXIT (0x18)
kadonotakashi 0:8fdf9a60065b 36
kadonotakashi 0:8fdf9a60065b 37 // mbed Semihosting Commands
kadonotakashi 0:8fdf9a60065b 38 #define RESERVED_FOR_USER_APPLICATIONS (0x100) // 0x100 - 0x1ff
kadonotakashi 0:8fdf9a60065b 39 #define USR_XFFIND (RESERVED_FOR_USER_APPLICATIONS + 0)
kadonotakashi 0:8fdf9a60065b 40 #define USR_UID (RESERVED_FOR_USER_APPLICATIONS + 1)
kadonotakashi 0:8fdf9a60065b 41 #define USR_RESET (RESERVED_FOR_USER_APPLICATIONS + 2)
kadonotakashi 0:8fdf9a60065b 42 #define USR_VBUS (RESERVED_FOR_USER_APPLICATIONS + 3)
kadonotakashi 0:8fdf9a60065b 43 #define USR_POWERDOWN (RESERVED_FOR_USER_APPLICATIONS + 4)
kadonotakashi 0:8fdf9a60065b 44 #define USR_DISABLEDEBUG (RESERVED_FOR_USER_APPLICATIONS + 5)
kadonotakashi 0:8fdf9a60065b 45
kadonotakashi 0:8fdf9a60065b 46 #if DEVICE_LOCALFILESYSTEM
kadonotakashi 0:8fdf9a60065b 47 FILEHANDLE semihost_open(const char *name, int openmode)
kadonotakashi 0:8fdf9a60065b 48 {
kadonotakashi 0:8fdf9a60065b 49 uint32_t args[3];
kadonotakashi 0:8fdf9a60065b 50 args[0] = (uint32_t)name;
kadonotakashi 0:8fdf9a60065b 51 args[1] = (uint32_t)openmode;
kadonotakashi 0:8fdf9a60065b 52 args[2] = (uint32_t)strlen(name);
kadonotakashi 0:8fdf9a60065b 53 return __semihost(SYS_OPEN, args);
kadonotakashi 0:8fdf9a60065b 54 }
kadonotakashi 0:8fdf9a60065b 55
kadonotakashi 0:8fdf9a60065b 56 int semihost_close(FILEHANDLE fh)
kadonotakashi 0:8fdf9a60065b 57 {
kadonotakashi 0:8fdf9a60065b 58 return __semihost(SYS_CLOSE, &fh);
kadonotakashi 0:8fdf9a60065b 59 }
kadonotakashi 0:8fdf9a60065b 60
kadonotakashi 0:8fdf9a60065b 61 int semihost_write(FILEHANDLE fh, const unsigned char *buffer, unsigned int length, int mode)
kadonotakashi 0:8fdf9a60065b 62 {
kadonotakashi 0:8fdf9a60065b 63 if (length == 0) {
kadonotakashi 0:8fdf9a60065b 64 return 0;
kadonotakashi 0:8fdf9a60065b 65 }
kadonotakashi 0:8fdf9a60065b 66
kadonotakashi 0:8fdf9a60065b 67 uint32_t args[3];
kadonotakashi 0:8fdf9a60065b 68 args[0] = (uint32_t)fh;
kadonotakashi 0:8fdf9a60065b 69 args[1] = (uint32_t)buffer;
kadonotakashi 0:8fdf9a60065b 70 args[2] = (uint32_t)length;
kadonotakashi 0:8fdf9a60065b 71 return __semihost(SYS_WRITE, args);
kadonotakashi 0:8fdf9a60065b 72 }
kadonotakashi 0:8fdf9a60065b 73
kadonotakashi 0:8fdf9a60065b 74 int semihost_read(FILEHANDLE fh, unsigned char *buffer, unsigned int length, int mode)
kadonotakashi 0:8fdf9a60065b 75 {
kadonotakashi 0:8fdf9a60065b 76 uint32_t args[3];
kadonotakashi 0:8fdf9a60065b 77 args[0] = (uint32_t)fh;
kadonotakashi 0:8fdf9a60065b 78 args[1] = (uint32_t)buffer;
kadonotakashi 0:8fdf9a60065b 79 args[2] = (uint32_t)length;
kadonotakashi 0:8fdf9a60065b 80 return __semihost(SYS_READ, args);
kadonotakashi 0:8fdf9a60065b 81 }
kadonotakashi 0:8fdf9a60065b 82
kadonotakashi 0:8fdf9a60065b 83 int semihost_istty(FILEHANDLE fh)
kadonotakashi 0:8fdf9a60065b 84 {
kadonotakashi 0:8fdf9a60065b 85 return __semihost(SYS_ISTTY, &fh);
kadonotakashi 0:8fdf9a60065b 86 }
kadonotakashi 0:8fdf9a60065b 87
kadonotakashi 0:8fdf9a60065b 88 int semihost_seek(FILEHANDLE fh, long position)
kadonotakashi 0:8fdf9a60065b 89 {
kadonotakashi 0:8fdf9a60065b 90 uint32_t args[2];
kadonotakashi 0:8fdf9a60065b 91 args[0] = (uint32_t)fh;
kadonotakashi 0:8fdf9a60065b 92 args[1] = (uint32_t)position;
kadonotakashi 0:8fdf9a60065b 93 return __semihost(SYS_SEEK, args);
kadonotakashi 0:8fdf9a60065b 94 }
kadonotakashi 0:8fdf9a60065b 95
kadonotakashi 0:8fdf9a60065b 96 int semihost_ensure(FILEHANDLE fh)
kadonotakashi 0:8fdf9a60065b 97 {
kadonotakashi 0:8fdf9a60065b 98 return __semihost(SYS_ENSURE, &fh);
kadonotakashi 0:8fdf9a60065b 99 }
kadonotakashi 0:8fdf9a60065b 100
kadonotakashi 0:8fdf9a60065b 101 long semihost_flen(FILEHANDLE fh)
kadonotakashi 0:8fdf9a60065b 102 {
kadonotakashi 0:8fdf9a60065b 103 return __semihost(SYS_FLEN, &fh);
kadonotakashi 0:8fdf9a60065b 104 }
kadonotakashi 0:8fdf9a60065b 105
kadonotakashi 0:8fdf9a60065b 106 int semihost_remove(const char *name)
kadonotakashi 0:8fdf9a60065b 107 {
kadonotakashi 0:8fdf9a60065b 108 uint32_t args[2];
kadonotakashi 0:8fdf9a60065b 109 args[0] = (uint32_t)name;
kadonotakashi 0:8fdf9a60065b 110 args[1] = (uint32_t)strlen(name);
kadonotakashi 0:8fdf9a60065b 111 return __semihost(SYS_REMOVE, args);
kadonotakashi 0:8fdf9a60065b 112 }
kadonotakashi 0:8fdf9a60065b 113
kadonotakashi 0:8fdf9a60065b 114 int semihost_rename(const char *old_name, const char *new_name)
kadonotakashi 0:8fdf9a60065b 115 {
kadonotakashi 0:8fdf9a60065b 116 uint32_t args[4];
kadonotakashi 0:8fdf9a60065b 117 args[0] = (uint32_t)old_name;
kadonotakashi 0:8fdf9a60065b 118 args[1] = (uint32_t)strlen(old_name);
kadonotakashi 0:8fdf9a60065b 119 args[0] = (uint32_t)new_name;
kadonotakashi 0:8fdf9a60065b 120 args[1] = (uint32_t)strlen(new_name);
kadonotakashi 0:8fdf9a60065b 121 return __semihost(SYS_RENAME, args);
kadonotakashi 0:8fdf9a60065b 122 }
kadonotakashi 0:8fdf9a60065b 123 #endif
kadonotakashi 0:8fdf9a60065b 124
kadonotakashi 0:8fdf9a60065b 125 int semihost_exit(void)
kadonotakashi 0:8fdf9a60065b 126 {
kadonotakashi 0:8fdf9a60065b 127 uint32_t args[4];
kadonotakashi 0:8fdf9a60065b 128 return __semihost(SYS_EXIT, args);
kadonotakashi 0:8fdf9a60065b 129 }
kadonotakashi 0:8fdf9a60065b 130
kadonotakashi 0:8fdf9a60065b 131 int semihost_uid(char *uid)
kadonotakashi 0:8fdf9a60065b 132 {
kadonotakashi 0:8fdf9a60065b 133 uint32_t args[2];
kadonotakashi 0:8fdf9a60065b 134 args[0] = (uint32_t)uid;
kadonotakashi 0:8fdf9a60065b 135 args[1] = DEVICE_ID_LENGTH + 1;
kadonotakashi 0:8fdf9a60065b 136 return __semihost(USR_UID, &args);
kadonotakashi 0:8fdf9a60065b 137 }
kadonotakashi 0:8fdf9a60065b 138
kadonotakashi 0:8fdf9a60065b 139 int semihost_reset(void)
kadonotakashi 0:8fdf9a60065b 140 {
kadonotakashi 0:8fdf9a60065b 141 // Does not normally return, however if used with older firmware versions
kadonotakashi 0:8fdf9a60065b 142 // that do not support this call it will return -1.
kadonotakashi 0:8fdf9a60065b 143 return __semihost(USR_RESET, NULL);
kadonotakashi 0:8fdf9a60065b 144 }
kadonotakashi 0:8fdf9a60065b 145
kadonotakashi 0:8fdf9a60065b 146 int semihost_vbus(void)
kadonotakashi 0:8fdf9a60065b 147 {
kadonotakashi 0:8fdf9a60065b 148 return __semihost(USR_VBUS, NULL);
kadonotakashi 0:8fdf9a60065b 149 }
kadonotakashi 0:8fdf9a60065b 150
kadonotakashi 0:8fdf9a60065b 151 int semihost_powerdown(void)
kadonotakashi 0:8fdf9a60065b 152 {
kadonotakashi 0:8fdf9a60065b 153 return __semihost(USR_POWERDOWN, NULL);
kadonotakashi 0:8fdf9a60065b 154 }
kadonotakashi 0:8fdf9a60065b 155
kadonotakashi 0:8fdf9a60065b 156 #if DEVICE_DEBUG_AWARENESS
kadonotakashi 0:8fdf9a60065b 157
kadonotakashi 0:8fdf9a60065b 158 int semihost_connected(void)
kadonotakashi 0:8fdf9a60065b 159 {
kadonotakashi 0:8fdf9a60065b 160 return (CoreDebug->DHCSR & CoreDebug_DHCSR_C_DEBUGEN_Msk) ? 1 : 0;
kadonotakashi 0:8fdf9a60065b 161 }
kadonotakashi 0:8fdf9a60065b 162
kadonotakashi 0:8fdf9a60065b 163 #else
kadonotakashi 0:8fdf9a60065b 164 // These processors cannot know if the interface is connect, assume so:
kadonotakashi 0:8fdf9a60065b 165 static int is_debugger_attached = 1;
kadonotakashi 0:8fdf9a60065b 166
kadonotakashi 0:8fdf9a60065b 167 int semihost_connected(void)
kadonotakashi 0:8fdf9a60065b 168 {
kadonotakashi 0:8fdf9a60065b 169 return is_debugger_attached;
kadonotakashi 0:8fdf9a60065b 170 }
kadonotakashi 0:8fdf9a60065b 171 #endif
kadonotakashi 0:8fdf9a60065b 172
kadonotakashi 0:8fdf9a60065b 173 int semihost_disabledebug(void)
kadonotakashi 0:8fdf9a60065b 174 {
kadonotakashi 0:8fdf9a60065b 175 uint32_t args[1];
kadonotakashi 0:8fdf9a60065b 176 #if !(DEVICE_DEBUG_AWARENESS)
kadonotakashi 0:8fdf9a60065b 177 is_debugger_attached = 0;
kadonotakashi 0:8fdf9a60065b 178 #endif
kadonotakashi 0:8fdf9a60065b 179 return __semihost(USR_DISABLEDEBUG, &args);
kadonotakashi 0:8fdf9a60065b 180 }
kadonotakashi 0:8fdf9a60065b 181
kadonotakashi 0:8fdf9a60065b 182 #endif
kadonotakashi 0:8fdf9a60065b 183