PHung Tung / SRC_STM32F7

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Dependents:   WAV

common/mbed_interface.c@0:e87aa4c49e95, 2019-06-04 (annotated)

Committer:
phungductung
Date:
Tue Jun 04 21:51:46 2019 +0000
Revision:
0:e87aa4c49e95
libray

Who changed what in which revision?

UserRevisionLine numberNew contents of line
phungductung 0:e87aa4c49e95 1 /* mbed Microcontroller Library
phungductung 0:e87aa4c49e95 2 * Copyright (c) 2006-2013 ARM Limited
phungductung 0:e87aa4c49e95 3 *
phungductung 0:e87aa4c49e95 4 * Licensed under the Apache License, Version 2.0 (the "License");
phungductung 0:e87aa4c49e95 5 * you may not use this file except in compliance with the License.
phungductung 0:e87aa4c49e95 6 * You may obtain a copy of the License at
phungductung 0:e87aa4c49e95 7 *
phungductung 0:e87aa4c49e95 8 * http://www.apache.org/licenses/LICENSE-2.0
phungductung 0:e87aa4c49e95 9 *
phungductung 0:e87aa4c49e95 10 * Unless required by applicable law or agreed to in writing, software
phungductung 0:e87aa4c49e95 11 * distributed under the License is distributed on an "AS IS" BASIS,
phungductung 0:e87aa4c49e95 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
phungductung 0:e87aa4c49e95 13 * See the License for the specific language governing permissions and
phungductung 0:e87aa4c49e95 14 * limitations under the License.
phungductung 0:e87aa4c49e95 15 */
phungductung 0:e87aa4c49e95 16 #include <stdio.h>
phungductung 0:e87aa4c49e95 17 #include "mbed_interface.h"
phungductung 0:e87aa4c49e95 18
phungductung 0:e87aa4c49e95 19 #include "gpio_api.h"
phungductung 0:e87aa4c49e95 20 #include "wait_api.h"
phungductung 0:e87aa4c49e95 21 #include "semihost_api.h"
phungductung 0:e87aa4c49e95 22 #include "mbed_error.h"
phungductung 0:e87aa4c49e95 23 #include "toolchain.h"
phungductung 0:e87aa4c49e95 24
phungductung 0:e87aa4c49e95 25 #if DEVICE_SEMIHOST
phungductung 0:e87aa4c49e95 26
phungductung 0:e87aa4c49e95 27 // return true if a debugger is attached, indicating mbed interface is connected
phungductung 0:e87aa4c49e95 28 int mbed_interface_connected(void) {
phungductung 0:e87aa4c49e95 29 return semihost_connected();
phungductung 0:e87aa4c49e95 30 }
phungductung 0:e87aa4c49e95 31
phungductung 0:e87aa4c49e95 32 int mbed_interface_reset(void) {
phungductung 0:e87aa4c49e95 33 if (mbed_interface_connected()) {
phungductung 0:e87aa4c49e95 34 semihost_reset();
phungductung 0:e87aa4c49e95 35 return 0;
phungductung 0:e87aa4c49e95 36 } else {
phungductung 0:e87aa4c49e95 37 return -1;
phungductung 0:e87aa4c49e95 38 }
phungductung 0:e87aa4c49e95 39 }
phungductung 0:e87aa4c49e95 40
phungductung 0:e87aa4c49e95 41 WEAK int mbed_interface_uid(char *uid) {
phungductung 0:e87aa4c49e95 42 if (mbed_interface_connected()) {
phungductung 0:e87aa4c49e95 43 return semihost_uid(uid); // Returns 0 if successful, -1 on failure
phungductung 0:e87aa4c49e95 44 } else {
phungductung 0:e87aa4c49e95 45 uid[0] = 0;
phungductung 0:e87aa4c49e95 46 return -1;
phungductung 0:e87aa4c49e95 47 }
phungductung 0:e87aa4c49e95 48 }
phungductung 0:e87aa4c49e95 49
phungductung 0:e87aa4c49e95 50 int mbed_interface_disconnect(void) {
phungductung 0:e87aa4c49e95 51 int res;
phungductung 0:e87aa4c49e95 52 if (mbed_interface_connected()) {
phungductung 0:e87aa4c49e95 53 if ((res = semihost_disabledebug()) != 0)
phungductung 0:e87aa4c49e95 54 return res;
phungductung 0:e87aa4c49e95 55 while (mbed_interface_connected());
phungductung 0:e87aa4c49e95 56 return 0;
phungductung 0:e87aa4c49e95 57 } else {
phungductung 0:e87aa4c49e95 58 return -1;
phungductung 0:e87aa4c49e95 59 }
phungductung 0:e87aa4c49e95 60 }
phungductung 0:e87aa4c49e95 61
phungductung 0:e87aa4c49e95 62 int mbed_interface_powerdown(void) {
phungductung 0:e87aa4c49e95 63 int res;
phungductung 0:e87aa4c49e95 64 if (mbed_interface_connected()) {
phungductung 0:e87aa4c49e95 65 if ((res = semihost_powerdown()) != 0)
phungductung 0:e87aa4c49e95 66 return res;
phungductung 0:e87aa4c49e95 67 while (mbed_interface_connected());
phungductung 0:e87aa4c49e95 68 return 0;
phungductung 0:e87aa4c49e95 69 } else {
phungductung 0:e87aa4c49e95 70 return -1;
phungductung 0:e87aa4c49e95 71 }
phungductung 0:e87aa4c49e95 72 }
phungductung 0:e87aa4c49e95 73
phungductung 0:e87aa4c49e95 74 // for backward compatibility
phungductung 0:e87aa4c49e95 75 void mbed_reset(void) {
phungductung 0:e87aa4c49e95 76 mbed_interface_reset();
phungductung 0:e87aa4c49e95 77 }
phungductung 0:e87aa4c49e95 78
phungductung 0:e87aa4c49e95 79 WEAK int mbed_uid(char *uid) {
phungductung 0:e87aa4c49e95 80 return mbed_interface_uid(uid);
phungductung 0:e87aa4c49e95 81 }
phungductung 0:e87aa4c49e95 82 #endif
phungductung 0:e87aa4c49e95 83
phungductung 0:e87aa4c49e95 84 WEAK void mbed_mac_address(char *mac) {
phungductung 0:e87aa4c49e95 85 #if DEVICE_SEMIHOST
phungductung 0:e87aa4c49e95 86 char uid[DEVICE_ID_LENGTH + 1];
phungductung 0:e87aa4c49e95 87 int i;
phungductung 0:e87aa4c49e95 88
phungductung 0:e87aa4c49e95 89 // if we have a UID, extract the MAC
phungductung 0:e87aa4c49e95 90 if (mbed_interface_uid(uid) == 0) {
phungductung 0:e87aa4c49e95 91 char *p = uid;
phungductung 0:e87aa4c49e95 92 #if defined(DEVICE_MAC_OFFSET)
phungductung 0:e87aa4c49e95 93 p += DEVICE_MAC_OFFSET;
phungductung 0:e87aa4c49e95 94 #endif
phungductung 0:e87aa4c49e95 95 for (i=0; i<6; i++) {
phungductung 0:e87aa4c49e95 96 int byte;
phungductung 0:e87aa4c49e95 97 sscanf(p, "%2x", &byte);
phungductung 0:e87aa4c49e95 98 mac[i] = byte;
phungductung 0:e87aa4c49e95 99 p += 2;
phungductung 0:e87aa4c49e95 100 }
phungductung 0:e87aa4c49e95 101 mac[0] &= ~0x01; // reset the IG bit in the address; see IEE 802.3-2002, Section 3.2.3(b)
phungductung 0:e87aa4c49e95 102 } else { // else return a default MAC
phungductung 0:e87aa4c49e95 103 #endif
phungductung 0:e87aa4c49e95 104 mac[0] = 0x00;
phungductung 0:e87aa4c49e95 105 mac[1] = 0x02;
phungductung 0:e87aa4c49e95 106 mac[2] = 0xF7;
phungductung 0:e87aa4c49e95 107 mac[3] = 0xF0;
phungductung 0:e87aa4c49e95 108 mac[4] = 0x00;
phungductung 0:e87aa4c49e95 109 mac[5] = 0x00;
phungductung 0:e87aa4c49e95 110 #if DEVICE_SEMIHOST
phungductung 0:e87aa4c49e95 111 }
phungductung 0:e87aa4c49e95 112 #endif
phungductung 0:e87aa4c49e95 113 }