Aditya Mehrotra / mbed-dev

Biomimetics MBED Library w/ Added Support for CAN3

Dependents:   CAN_TEST SPIne_Plus_DYNO_SENSORS SPIne_Plus_v2 SPIne_Plus_Dyno_v2

platform/mbed_interface.c@0:083111ae2a11, 2020-11-26 (annotated)

Committer:
saloutos
Date:
Thu Nov 26 04:08:56 2020 +0000
Revision:
0:083111ae2a11
first commit of leaned mbed dev lib

Who changed what in which revision?

UserRevisionLine numberNew contents of line
saloutos 0:083111ae2a11 1 /* mbed Microcontroller Library
saloutos 0:083111ae2a11 2 * Copyright (c) 2006-2013 ARM Limited
saloutos 0:083111ae2a11 3 *
saloutos 0:083111ae2a11 4 * Licensed under the Apache License, Version 2.0 (the "License");
saloutos 0:083111ae2a11 5 * you may not use this file except in compliance with the License.
saloutos 0:083111ae2a11 6 * You may obtain a copy of the License at
saloutos 0:083111ae2a11 7 *
saloutos 0:083111ae2a11 8 * http://www.apache.org/licenses/LICENSE-2.0
saloutos 0:083111ae2a11 9 *
saloutos 0:083111ae2a11 10 * Unless required by applicable law or agreed to in writing, software
saloutos 0:083111ae2a11 11 * distributed under the License is distributed on an "AS IS" BASIS,
saloutos 0:083111ae2a11 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
saloutos 0:083111ae2a11 13 * See the License for the specific language governing permissions and
saloutos 0:083111ae2a11 14 * limitations under the License.
saloutos 0:083111ae2a11 15 */
saloutos 0:083111ae2a11 16 #include <stdio.h>
saloutos 0:083111ae2a11 17 #include "platform/mbed_interface.h"
saloutos 0:083111ae2a11 18
saloutos 0:083111ae2a11 19 #include "hal/gpio_api.h"
saloutos 0:083111ae2a11 20 #include "platform/mbed_wait_api.h"
saloutos 0:083111ae2a11 21 #include "platform/mbed_semihost_api.h"
saloutos 0:083111ae2a11 22 #include "platform/mbed_error.h"
saloutos 0:083111ae2a11 23 #include "platform/mbed_toolchain.h"
saloutos 0:083111ae2a11 24
saloutos 0:083111ae2a11 25 #if DEVICE_SEMIHOST
saloutos 0:083111ae2a11 26
saloutos 0:083111ae2a11 27 // return true if a debugger is attached, indicating mbed interface is connected
saloutos 0:083111ae2a11 28 int mbed_interface_connected(void) {
saloutos 0:083111ae2a11 29 return semihost_connected();
saloutos 0:083111ae2a11 30 }
saloutos 0:083111ae2a11 31
saloutos 0:083111ae2a11 32 int mbed_interface_reset(void) {
saloutos 0:083111ae2a11 33 if (mbed_interface_connected()) {
saloutos 0:083111ae2a11 34 semihost_reset();
saloutos 0:083111ae2a11 35 return 0;
saloutos 0:083111ae2a11 36 } else {
saloutos 0:083111ae2a11 37 return -1;
saloutos 0:083111ae2a11 38 }
saloutos 0:083111ae2a11 39 }
saloutos 0:083111ae2a11 40
saloutos 0:083111ae2a11 41 WEAK int mbed_interface_uid(char *uid) {
saloutos 0:083111ae2a11 42 if (mbed_interface_connected()) {
saloutos 0:083111ae2a11 43 return semihost_uid(uid); // Returns 0 if successful, -1 on failure
saloutos 0:083111ae2a11 44 } else {
saloutos 0:083111ae2a11 45 uid[0] = 0;
saloutos 0:083111ae2a11 46 return -1;
saloutos 0:083111ae2a11 47 }
saloutos 0:083111ae2a11 48 }
saloutos 0:083111ae2a11 49
saloutos 0:083111ae2a11 50 int mbed_interface_disconnect(void) {
saloutos 0:083111ae2a11 51 int res;
saloutos 0:083111ae2a11 52 if (mbed_interface_connected()) {
saloutos 0:083111ae2a11 53 if ((res = semihost_disabledebug()) != 0)
saloutos 0:083111ae2a11 54 return res;
saloutos 0:083111ae2a11 55 while (mbed_interface_connected());
saloutos 0:083111ae2a11 56 return 0;
saloutos 0:083111ae2a11 57 } else {
saloutos 0:083111ae2a11 58 return -1;
saloutos 0:083111ae2a11 59 }
saloutos 0:083111ae2a11 60 }
saloutos 0:083111ae2a11 61
saloutos 0:083111ae2a11 62 int mbed_interface_powerdown(void) {
saloutos 0:083111ae2a11 63 int res;
saloutos 0:083111ae2a11 64 if (mbed_interface_connected()) {
saloutos 0:083111ae2a11 65 if ((res = semihost_powerdown()) != 0)
saloutos 0:083111ae2a11 66 return res;
saloutos 0:083111ae2a11 67 while (mbed_interface_connected());
saloutos 0:083111ae2a11 68 return 0;
saloutos 0:083111ae2a11 69 } else {
saloutos 0:083111ae2a11 70 return -1;
saloutos 0:083111ae2a11 71 }
saloutos 0:083111ae2a11 72 }
saloutos 0:083111ae2a11 73
saloutos 0:083111ae2a11 74 // for backward compatibility
saloutos 0:083111ae2a11 75 void mbed_reset(void) {
saloutos 0:083111ae2a11 76 mbed_interface_reset();
saloutos 0:083111ae2a11 77 }
saloutos 0:083111ae2a11 78
saloutos 0:083111ae2a11 79 WEAK int mbed_uid(char *uid) {
saloutos 0:083111ae2a11 80 return mbed_interface_uid(uid);
saloutos 0:083111ae2a11 81 }
saloutos 0:083111ae2a11 82 #endif
saloutos 0:083111ae2a11 83
saloutos 0:083111ae2a11 84 WEAK void mbed_mac_address(char *mac) {
saloutos 0:083111ae2a11 85 #if DEVICE_SEMIHOST
saloutos 0:083111ae2a11 86 char uid[DEVICE_ID_LENGTH + 1];
saloutos 0:083111ae2a11 87 int i;
saloutos 0:083111ae2a11 88
saloutos 0:083111ae2a11 89 // if we have a UID, extract the MAC
saloutos 0:083111ae2a11 90 if (mbed_interface_uid(uid) == 0) {
saloutos 0:083111ae2a11 91 char *p = uid;
saloutos 0:083111ae2a11 92 #if defined(DEVICE_MAC_OFFSET)
saloutos 0:083111ae2a11 93 p += DEVICE_MAC_OFFSET;
saloutos 0:083111ae2a11 94 #endif
saloutos 0:083111ae2a11 95 for (i=0; i<6; i++) {
saloutos 0:083111ae2a11 96 int byte;
saloutos 0:083111ae2a11 97 sscanf(p, "%2x", &byte);
saloutos 0:083111ae2a11 98 mac[i] = byte;
saloutos 0:083111ae2a11 99 p += 2;
saloutos 0:083111ae2a11 100 }
saloutos 0:083111ae2a11 101 mac[0] &= ~0x01; // reset the IG bit in the address; see IEE 802.3-2002, Section 3.2.3(b)
saloutos 0:083111ae2a11 102 } else { // else return a default MAC
saloutos 0:083111ae2a11 103 #endif
saloutos 0:083111ae2a11 104 mac[0] = 0x00;
saloutos 0:083111ae2a11 105 mac[1] = 0x02;
saloutos 0:083111ae2a11 106 mac[2] = 0xF7;
saloutos 0:083111ae2a11 107 mac[3] = 0xF0;
saloutos 0:083111ae2a11 108 mac[4] = 0x00;
saloutos 0:083111ae2a11 109 mac[5] = 0x00;
saloutos 0:083111ae2a11 110 #if DEVICE_SEMIHOST
saloutos 0:083111ae2a11 111 }
saloutos 0:083111ae2a11 112 #endif
saloutos 0:083111ae2a11 113 }