mbed library sources. Supersedes mbed-src.
Dependents: Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more
mbed_interface.c
00001 /* mbed Microcontroller Library 00002 * Copyright (c) 2006-2013 ARM Limited 00003 * SPDX-License-Identifier: Apache-2.0 00004 * 00005 * Licensed under the Apache License, Version 2.0 (the "License"); 00006 * you may not use this file except in compliance with the License. 00007 * You may obtain a copy of the License at 00008 * 00009 * http://www.apache.org/licenses/LICENSE-2.0 00010 * 00011 * Unless required by applicable law or agreed to in writing, software 00012 * distributed under the License is distributed on an "AS IS" BASIS, 00013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00014 * See the License for the specific language governing permissions and 00015 * limitations under the License. 00016 */ 00017 #include <stdio.h> 00018 #include "platform/mbed_interface.h" 00019 00020 #include "hal/gpio_api.h" 00021 #include "platform/mbed_wait_api.h" 00022 #include "platform/mbed_semihost_api.h" 00023 #include "platform/mbed_error.h" 00024 #include "platform/mbed_toolchain.h" 00025 00026 #if DEVICE_SEMIHOST 00027 00028 // return true if a debugger is attached, indicating mbed interface is connected 00029 int mbed_interface_connected(void) 00030 { 00031 return semihost_connected(); 00032 } 00033 00034 int mbed_interface_reset(void) 00035 { 00036 if (mbed_interface_connected()) { 00037 semihost_reset(); 00038 return 0; 00039 } else { 00040 return -1; 00041 } 00042 } 00043 00044 WEAK int mbed_interface_uid(char *uid) 00045 { 00046 if (mbed_interface_connected()) { 00047 return semihost_uid(uid); // Returns 0 if successful, -1 on failure 00048 } else { 00049 uid[0] = 0; 00050 return -1; 00051 } 00052 } 00053 00054 int mbed_interface_disconnect(void) 00055 { 00056 int res; 00057 if (mbed_interface_connected()) { 00058 if ((res = semihost_disabledebug()) != 0) { 00059 return res; 00060 } 00061 while (mbed_interface_connected()); 00062 return 0; 00063 } else { 00064 return -1; 00065 } 00066 } 00067 00068 int mbed_interface_powerdown(void) 00069 { 00070 int res; 00071 if (mbed_interface_connected()) { 00072 if ((res = semihost_powerdown()) != 0) { 00073 return res; 00074 } 00075 while (mbed_interface_connected()); 00076 return 0; 00077 } else { 00078 return -1; 00079 } 00080 } 00081 00082 MBED_DEPRECATED_SINCE("mbed-os-5.9", "This function shouldn't be used in new code." 00083 "For system reset funcionality use system_reset()") 00084 void mbed_reset(void) 00085 { 00086 mbed_interface_reset(); 00087 } 00088 00089 WEAK int mbed_uid(char *uid) 00090 { 00091 return mbed_interface_uid(uid); 00092 } 00093 #endif 00094 00095 WEAK void mbed_mac_address(char *mac) 00096 { 00097 #if DEVICE_SEMIHOST 00098 char uid[DEVICE_ID_LENGTH + 1]; 00099 int i; 00100 00101 // if we have a UID, extract the MAC 00102 if (mbed_interface_uid(uid) == 0) { 00103 char *p = uid; 00104 #if defined(DEVICE_MAC_OFFSET) 00105 p += DEVICE_MAC_OFFSET; 00106 #endif 00107 for (i = 0; i < 6; i++) { 00108 int byte; 00109 sscanf(p, "%2x", &byte); 00110 mac[i] = byte; 00111 p += 2; 00112 } 00113 mac[0] &= ~0x01; // reset the IG bit in the address; see IEE 802.3-2002, Section 3.2.3(b) 00114 } else { // else return a default MAC 00115 #endif 00116 mac[0] = 0x00; 00117 mac[1] = 0x02; 00118 mac[2] = 0xF7; 00119 mac[3] = 0xF0; 00120 mac[4] = 0x00; 00121 mac[5] = 0x00; 00122 #if DEVICE_SEMIHOST 00123 } 00124 #endif 00125 }
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