Takaaki Numai / mbed-dev

inport from local

Dependents:   Hobbyking_Cheetah_0511

platform/mbed_interface.c@0:85b3fd62ea1a, 2020-03-16 (annotated)

Committer:
NYX
Date:
Mon Mar 16 06:35:48 2020 +0000
Revision:
0:85b3fd62ea1a
reinport to mbed;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
NYX 0:85b3fd62ea1a 1 /* mbed Microcontroller Library
NYX 0:85b3fd62ea1a 2 * Copyright (c) 2006-2013 ARM Limited
NYX 0:85b3fd62ea1a 3 *
NYX 0:85b3fd62ea1a 4 * Licensed under the Apache License, Version 2.0 (the "License");
NYX 0:85b3fd62ea1a 5 * you may not use this file except in compliance with the License.
NYX 0:85b3fd62ea1a 6 * You may obtain a copy of the License at
NYX 0:85b3fd62ea1a 7 *
NYX 0:85b3fd62ea1a 8 * http://www.apache.org/licenses/LICENSE-2.0
NYX 0:85b3fd62ea1a 9 *
NYX 0:85b3fd62ea1a 10 * Unless required by applicable law or agreed to in writing, software
NYX 0:85b3fd62ea1a 11 * distributed under the License is distributed on an "AS IS" BASIS,
NYX 0:85b3fd62ea1a 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
NYX 0:85b3fd62ea1a 13 * See the License for the specific language governing permissions and
NYX 0:85b3fd62ea1a 14 * limitations under the License.
NYX 0:85b3fd62ea1a 15 */
NYX 0:85b3fd62ea1a 16 #include <stdio.h>
NYX 0:85b3fd62ea1a 17 #include "platform/mbed_interface.h"
NYX 0:85b3fd62ea1a 18
NYX 0:85b3fd62ea1a 19 #include "hal/gpio_api.h"
NYX 0:85b3fd62ea1a 20 #include "platform/mbed_wait_api.h"
NYX 0:85b3fd62ea1a 21 #include "platform/mbed_semihost_api.h"
NYX 0:85b3fd62ea1a 22 #include "platform/mbed_error.h"
NYX 0:85b3fd62ea1a 23 #include "platform/mbed_toolchain.h"
NYX 0:85b3fd62ea1a 24
NYX 0:85b3fd62ea1a 25 #if DEVICE_SEMIHOST
NYX 0:85b3fd62ea1a 26
NYX 0:85b3fd62ea1a 27 // return true if a debugger is attached, indicating mbed interface is connected
NYX 0:85b3fd62ea1a 28 int mbed_interface_connected(void) {
NYX 0:85b3fd62ea1a 29 return semihost_connected();
NYX 0:85b3fd62ea1a 30 }
NYX 0:85b3fd62ea1a 31
NYX 0:85b3fd62ea1a 32 int mbed_interface_reset(void) {
NYX 0:85b3fd62ea1a 33 if (mbed_interface_connected()) {
NYX 0:85b3fd62ea1a 34 semihost_reset();
NYX 0:85b3fd62ea1a 35 return 0;
NYX 0:85b3fd62ea1a 36 } else {
NYX 0:85b3fd62ea1a 37 return -1;
NYX 0:85b3fd62ea1a 38 }
NYX 0:85b3fd62ea1a 39 }
NYX 0:85b3fd62ea1a 40
NYX 0:85b3fd62ea1a 41 WEAK int mbed_interface_uid(char *uid) {
NYX 0:85b3fd62ea1a 42 if (mbed_interface_connected()) {
NYX 0:85b3fd62ea1a 43 return semihost_uid(uid); // Returns 0 if successful, -1 on failure
NYX 0:85b3fd62ea1a 44 } else {
NYX 0:85b3fd62ea1a 45 uid[0] = 0;
NYX 0:85b3fd62ea1a 46 return -1;
NYX 0:85b3fd62ea1a 47 }
NYX 0:85b3fd62ea1a 48 }
NYX 0:85b3fd62ea1a 49
NYX 0:85b3fd62ea1a 50 int mbed_interface_disconnect(void) {
NYX 0:85b3fd62ea1a 51 int res;
NYX 0:85b3fd62ea1a 52 if (mbed_interface_connected()) {
NYX 0:85b3fd62ea1a 53 if ((res = semihost_disabledebug()) != 0)
NYX 0:85b3fd62ea1a 54 return res;
NYX 0:85b3fd62ea1a 55 while (mbed_interface_connected());
NYX 0:85b3fd62ea1a 56 return 0;
NYX 0:85b3fd62ea1a 57 } else {
NYX 0:85b3fd62ea1a 58 return -1;
NYX 0:85b3fd62ea1a 59 }
NYX 0:85b3fd62ea1a 60 }
NYX 0:85b3fd62ea1a 61
NYX 0:85b3fd62ea1a 62 int mbed_interface_powerdown(void) {
NYX 0:85b3fd62ea1a 63 int res;
NYX 0:85b3fd62ea1a 64 if (mbed_interface_connected()) {
NYX 0:85b3fd62ea1a 65 if ((res = semihost_powerdown()) != 0)
NYX 0:85b3fd62ea1a 66 return res;
NYX 0:85b3fd62ea1a 67 while (mbed_interface_connected());
NYX 0:85b3fd62ea1a 68 return 0;
NYX 0:85b3fd62ea1a 69 } else {
NYX 0:85b3fd62ea1a 70 return -1;
NYX 0:85b3fd62ea1a 71 }
NYX 0:85b3fd62ea1a 72 }
NYX 0:85b3fd62ea1a 73
NYX 0:85b3fd62ea1a 74 // for backward compatibility
NYX 0:85b3fd62ea1a 75 void mbed_reset(void) {
NYX 0:85b3fd62ea1a 76 mbed_interface_reset();
NYX 0:85b3fd62ea1a 77 }
NYX 0:85b3fd62ea1a 78
NYX 0:85b3fd62ea1a 79 WEAK int mbed_uid(char *uid) {
NYX 0:85b3fd62ea1a 80 return mbed_interface_uid(uid);
NYX 0:85b3fd62ea1a 81 }
NYX 0:85b3fd62ea1a 82 #endif
NYX 0:85b3fd62ea1a 83
NYX 0:85b3fd62ea1a 84 WEAK void mbed_mac_address(char *mac) {
NYX 0:85b3fd62ea1a 85 #if DEVICE_SEMIHOST
NYX 0:85b3fd62ea1a 86 char uid[DEVICE_ID_LENGTH + 1];
NYX 0:85b3fd62ea1a 87 int i;
NYX 0:85b3fd62ea1a 88
NYX 0:85b3fd62ea1a 89 // if we have a UID, extract the MAC
NYX 0:85b3fd62ea1a 90 if (mbed_interface_uid(uid) == 0) {
NYX 0:85b3fd62ea1a 91 char *p = uid;
NYX 0:85b3fd62ea1a 92 #if defined(DEVICE_MAC_OFFSET)
NYX 0:85b3fd62ea1a 93 p += DEVICE_MAC_OFFSET;
NYX 0:85b3fd62ea1a 94 #endif
NYX 0:85b3fd62ea1a 95 for (i=0; i<6; i++) {
NYX 0:85b3fd62ea1a 96 int byte;
NYX 0:85b3fd62ea1a 97 sscanf(p, "%2x", &byte);
NYX 0:85b3fd62ea1a 98 mac[i] = byte;
NYX 0:85b3fd62ea1a 99 p += 2;
NYX 0:85b3fd62ea1a 100 }
NYX 0:85b3fd62ea1a 101 mac[0] &= ~0x01; // reset the IG bit in the address; see IEE 802.3-2002, Section 3.2.3(b)
NYX 0:85b3fd62ea1a 102 } else { // else return a default MAC
NYX 0:85b3fd62ea1a 103 #endif
NYX 0:85b3fd62ea1a 104 mac[0] = 0x00;
NYX 0:85b3fd62ea1a 105 mac[1] = 0x02;
NYX 0:85b3fd62ea1a 106 mac[2] = 0xF7;
NYX 0:85b3fd62ea1a 107 mac[3] = 0xF0;
NYX 0:85b3fd62ea1a 108 mac[4] = 0x00;
NYX 0:85b3fd62ea1a 109 mac[5] = 0x00;
NYX 0:85b3fd62ea1a 110 #if DEVICE_SEMIHOST
NYX 0:85b3fd62ea1a 111 }
NYX 0:85b3fd62ea1a 112 #endif
NYX 0:85b3fd62ea1a 113 }