Rahul Dahiya / Mbed OS STM32F7 Ethernet

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mbed-os/platform/mbed_interface.c@0:fb8047b156bb, 2020-01-15 (annotated)

Committer:
rahul_dahiya
Date:
Wed Jan 15 15:57:15 2020 +0530
Revision:
0:fb8047b156bb
STM32F7 LWIP

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rahul_dahiya 0:fb8047b156bb 1 /* mbed Microcontroller Library
rahul_dahiya 0:fb8047b156bb 2 * Copyright (c) 2006-2013 ARM Limited
rahul_dahiya 0:fb8047b156bb 3 *
rahul_dahiya 0:fb8047b156bb 4 * Licensed under the Apache License, Version 2.0 (the "License");
rahul_dahiya 0:fb8047b156bb 5 * you may not use this file except in compliance with the License.
rahul_dahiya 0:fb8047b156bb 6 * You may obtain a copy of the License at
rahul_dahiya 0:fb8047b156bb 7 *
rahul_dahiya 0:fb8047b156bb 8 * http://www.apache.org/licenses/LICENSE-2.0
rahul_dahiya 0:fb8047b156bb 9 *
rahul_dahiya 0:fb8047b156bb 10 * Unless required by applicable law or agreed to in writing, software
rahul_dahiya 0:fb8047b156bb 11 * distributed under the License is distributed on an "AS IS" BASIS,
rahul_dahiya 0:fb8047b156bb 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rahul_dahiya 0:fb8047b156bb 13 * See the License for the specific language governing permissions and
rahul_dahiya 0:fb8047b156bb 14 * limitations under the License.
rahul_dahiya 0:fb8047b156bb 15 */
rahul_dahiya 0:fb8047b156bb 16 #include <stdio.h>
rahul_dahiya 0:fb8047b156bb 17 #include "platform/mbed_interface.h"
rahul_dahiya 0:fb8047b156bb 18
rahul_dahiya 0:fb8047b156bb 19 #include "hal/gpio_api.h"
rahul_dahiya 0:fb8047b156bb 20 #include "platform/mbed_wait_api.h"
rahul_dahiya 0:fb8047b156bb 21 #include "platform/mbed_semihost_api.h"
rahul_dahiya 0:fb8047b156bb 22 #include "platform/mbed_error.h"
rahul_dahiya 0:fb8047b156bb 23 #include "platform/mbed_toolchain.h"
rahul_dahiya 0:fb8047b156bb 24
rahul_dahiya 0:fb8047b156bb 25 #if DEVICE_SEMIHOST
rahul_dahiya 0:fb8047b156bb 26
rahul_dahiya 0:fb8047b156bb 27 // return true if a debugger is attached, indicating mbed interface is connected
rahul_dahiya 0:fb8047b156bb 28 int mbed_interface_connected(void) {
rahul_dahiya 0:fb8047b156bb 29 return semihost_connected();
rahul_dahiya 0:fb8047b156bb 30 }
rahul_dahiya 0:fb8047b156bb 31
rahul_dahiya 0:fb8047b156bb 32 int mbed_interface_reset(void) {
rahul_dahiya 0:fb8047b156bb 33 if (mbed_interface_connected()) {
rahul_dahiya 0:fb8047b156bb 34 semihost_reset();
rahul_dahiya 0:fb8047b156bb 35 return 0;
rahul_dahiya 0:fb8047b156bb 36 } else {
rahul_dahiya 0:fb8047b156bb 37 return -1;
rahul_dahiya 0:fb8047b156bb 38 }
rahul_dahiya 0:fb8047b156bb 39 }
rahul_dahiya 0:fb8047b156bb 40
rahul_dahiya 0:fb8047b156bb 41 WEAK int mbed_interface_uid(char *uid) {
rahul_dahiya 0:fb8047b156bb 42 if (mbed_interface_connected()) {
rahul_dahiya 0:fb8047b156bb 43 return semihost_uid(uid); // Returns 0 if successful, -1 on failure
rahul_dahiya 0:fb8047b156bb 44 } else {
rahul_dahiya 0:fb8047b156bb 45 uid[0] = 0;
rahul_dahiya 0:fb8047b156bb 46 return -1;
rahul_dahiya 0:fb8047b156bb 47 }
rahul_dahiya 0:fb8047b156bb 48 }
rahul_dahiya 0:fb8047b156bb 49
rahul_dahiya 0:fb8047b156bb 50 int mbed_interface_disconnect(void) {
rahul_dahiya 0:fb8047b156bb 51 int res;
rahul_dahiya 0:fb8047b156bb 52 if (mbed_interface_connected()) {
rahul_dahiya 0:fb8047b156bb 53 if ((res = semihost_disabledebug()) != 0)
rahul_dahiya 0:fb8047b156bb 54 return res;
rahul_dahiya 0:fb8047b156bb 55 while (mbed_interface_connected());
rahul_dahiya 0:fb8047b156bb 56 return 0;
rahul_dahiya 0:fb8047b156bb 57 } else {
rahul_dahiya 0:fb8047b156bb 58 return -1;
rahul_dahiya 0:fb8047b156bb 59 }
rahul_dahiya 0:fb8047b156bb 60 }
rahul_dahiya 0:fb8047b156bb 61
rahul_dahiya 0:fb8047b156bb 62 int mbed_interface_powerdown(void) {
rahul_dahiya 0:fb8047b156bb 63 int res;
rahul_dahiya 0:fb8047b156bb 64 if (mbed_interface_connected()) {
rahul_dahiya 0:fb8047b156bb 65 if ((res = semihost_powerdown()) != 0)
rahul_dahiya 0:fb8047b156bb 66 return res;
rahul_dahiya 0:fb8047b156bb 67 while (mbed_interface_connected());
rahul_dahiya 0:fb8047b156bb 68 return 0;
rahul_dahiya 0:fb8047b156bb 69 } else {
rahul_dahiya 0:fb8047b156bb 70 return -1;
rahul_dahiya 0:fb8047b156bb 71 }
rahul_dahiya 0:fb8047b156bb 72 }
rahul_dahiya 0:fb8047b156bb 73
rahul_dahiya 0:fb8047b156bb 74 // for backward compatibility
rahul_dahiya 0:fb8047b156bb 75 void mbed_reset(void) {
rahul_dahiya 0:fb8047b156bb 76 mbed_interface_reset();
rahul_dahiya 0:fb8047b156bb 77 }
rahul_dahiya 0:fb8047b156bb 78
rahul_dahiya 0:fb8047b156bb 79 WEAK int mbed_uid(char *uid) {
rahul_dahiya 0:fb8047b156bb 80 return mbed_interface_uid(uid);
rahul_dahiya 0:fb8047b156bb 81 }
rahul_dahiya 0:fb8047b156bb 82 #endif
rahul_dahiya 0:fb8047b156bb 83
rahul_dahiya 0:fb8047b156bb 84 WEAK void mbed_mac_address(char *mac) {
rahul_dahiya 0:fb8047b156bb 85 #if DEVICE_SEMIHOST
rahul_dahiya 0:fb8047b156bb 86 char uid[DEVICE_ID_LENGTH + 1];
rahul_dahiya 0:fb8047b156bb 87 int i;
rahul_dahiya 0:fb8047b156bb 88
rahul_dahiya 0:fb8047b156bb 89 // if we have a UID, extract the MAC
rahul_dahiya 0:fb8047b156bb 90 if (mbed_interface_uid(uid) == 0) {
rahul_dahiya 0:fb8047b156bb 91 char *p = uid;
rahul_dahiya 0:fb8047b156bb 92 #if defined(DEVICE_MAC_OFFSET)
rahul_dahiya 0:fb8047b156bb 93 p += DEVICE_MAC_OFFSET;
rahul_dahiya 0:fb8047b156bb 94 #endif
rahul_dahiya 0:fb8047b156bb 95 for (i=0; i<6; i++) {
rahul_dahiya 0:fb8047b156bb 96 int byte;
rahul_dahiya 0:fb8047b156bb 97 sscanf(p, "%2x", &byte);
rahul_dahiya 0:fb8047b156bb 98 mac[i] = byte;
rahul_dahiya 0:fb8047b156bb 99 p += 2;
rahul_dahiya 0:fb8047b156bb 100 }
rahul_dahiya 0:fb8047b156bb 101 mac[0] &= ~0x01; // reset the IG bit in the address; see IEE 802.3-2002, Section 3.2.3(b)
rahul_dahiya 0:fb8047b156bb 102 } else { // else return a default MAC
rahul_dahiya 0:fb8047b156bb 103 #endif
rahul_dahiya 0:fb8047b156bb 104 mac[0] = 0x00;
rahul_dahiya 0:fb8047b156bb 105 mac[1] = 0x02;
rahul_dahiya 0:fb8047b156bb 106 mac[2] = 0xF7;
rahul_dahiya 0:fb8047b156bb 107 mac[3] = 0xF0;
rahul_dahiya 0:fb8047b156bb 108 mac[4] = 0x00;
rahul_dahiya 0:fb8047b156bb 109 mac[5] = 0x00;
rahul_dahiya 0:fb8047b156bb 110 #if DEVICE_SEMIHOST
rahul_dahiya 0:fb8047b156bb 111 }
rahul_dahiya 0:fb8047b156bb 112 #endif
rahul_dahiya 0:fb8047b156bb 113 }