Yihui Xiong / mbed-src-nrf51822

customized mbed library sources for nrf51822

Dependents:   Grove_Node Potentiometer BLE_Beacon I2C_Scanner

common/mbed_interface.c@0:700cadd8b708, 2014-11-04 (annotated)

Committer:
yihui
Date:
Tue Nov 04 07:38:53 2014 +0000
Revision:
0:700cadd8b708
customized mbed-src library for nrf51822

Who changed what in which revision?

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yihui 0:700cadd8b708 1 /* mbed Microcontroller Library
yihui 0:700cadd8b708 2 * Copyright (c) 2006-2013 ARM Limited
yihui 0:700cadd8b708 3 *
yihui 0:700cadd8b708 4 * Licensed under the Apache License, Version 2.0 (the "License");
yihui 0:700cadd8b708 5 * you may not use this file except in compliance with the License.
yihui 0:700cadd8b708 6 * You may obtain a copy of the License at
yihui 0:700cadd8b708 7 *
yihui 0:700cadd8b708 8 * http://www.apache.org/licenses/LICENSE-2.0
yihui 0:700cadd8b708 9 *
yihui 0:700cadd8b708 10 * Unless required by applicable law or agreed to in writing, software
yihui 0:700cadd8b708 11 * distributed under the License is distributed on an "AS IS" BASIS,
yihui 0:700cadd8b708 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
yihui 0:700cadd8b708 13 * See the License for the specific language governing permissions and
yihui 0:700cadd8b708 14 * limitations under the License.
yihui 0:700cadd8b708 15 */
yihui 0:700cadd8b708 16 #include <stdio.h>
yihui 0:700cadd8b708 17 #include "mbed_interface.h"
yihui 0:700cadd8b708 18
yihui 0:700cadd8b708 19 #include "gpio_api.h"
yihui 0:700cadd8b708 20 #include "wait_api.h"
yihui 0:700cadd8b708 21 #include "semihost_api.h"
yihui 0:700cadd8b708 22 #include "mbed_error.h"
yihui 0:700cadd8b708 23 #include "toolchain.h"
yihui 0:700cadd8b708 24
yihui 0:700cadd8b708 25 #if DEVICE_SEMIHOST
yihui 0:700cadd8b708 26
yihui 0:700cadd8b708 27 // return true if a debugger is attached, indicating mbed interface is connected
yihui 0:700cadd8b708 28 int mbed_interface_connected(void) {
yihui 0:700cadd8b708 29 return semihost_connected();
yihui 0:700cadd8b708 30 }
yihui 0:700cadd8b708 31
yihui 0:700cadd8b708 32 int mbed_interface_reset(void) {
yihui 0:700cadd8b708 33 if (mbed_interface_connected()) {
yihui 0:700cadd8b708 34 semihost_reset();
yihui 0:700cadd8b708 35 return 0;
yihui 0:700cadd8b708 36 } else {
yihui 0:700cadd8b708 37 return -1;
yihui 0:700cadd8b708 38 }
yihui 0:700cadd8b708 39 }
yihui 0:700cadd8b708 40
yihui 0:700cadd8b708 41 WEAK int mbed_interface_uid(char *uid) {
yihui 0:700cadd8b708 42 if (mbed_interface_connected()) {
yihui 0:700cadd8b708 43 return semihost_uid(uid); // Returns 0 if successful, -1 on failure
yihui 0:700cadd8b708 44 } else {
yihui 0:700cadd8b708 45 uid[0] = 0;
yihui 0:700cadd8b708 46 return -1;
yihui 0:700cadd8b708 47 }
yihui 0:700cadd8b708 48 }
yihui 0:700cadd8b708 49
yihui 0:700cadd8b708 50 int mbed_interface_disconnect(void) {
yihui 0:700cadd8b708 51 int res;
yihui 0:700cadd8b708 52 if (mbed_interface_connected()) {
yihui 0:700cadd8b708 53 if ((res = semihost_disabledebug()) != 0)
yihui 0:700cadd8b708 54 return res;
yihui 0:700cadd8b708 55 while (mbed_interface_connected());
yihui 0:700cadd8b708 56 return 0;
yihui 0:700cadd8b708 57 } else {
yihui 0:700cadd8b708 58 return -1;
yihui 0:700cadd8b708 59 }
yihui 0:700cadd8b708 60 }
yihui 0:700cadd8b708 61
yihui 0:700cadd8b708 62 int mbed_interface_powerdown(void) {
yihui 0:700cadd8b708 63 int res;
yihui 0:700cadd8b708 64 if (mbed_interface_connected()) {
yihui 0:700cadd8b708 65 if ((res = semihost_powerdown()) != 0)
yihui 0:700cadd8b708 66 return res;
yihui 0:700cadd8b708 67 while (mbed_interface_connected());
yihui 0:700cadd8b708 68 return 0;
yihui 0:700cadd8b708 69 } else {
yihui 0:700cadd8b708 70 return -1;
yihui 0:700cadd8b708 71 }
yihui 0:700cadd8b708 72 }
yihui 0:700cadd8b708 73
yihui 0:700cadd8b708 74 // for backward compatibility
yihui 0:700cadd8b708 75 void mbed_reset(void) {
yihui 0:700cadd8b708 76 mbed_interface_reset();
yihui 0:700cadd8b708 77 }
yihui 0:700cadd8b708 78
yihui 0:700cadd8b708 79 WEAK int mbed_uid(char *uid) {
yihui 0:700cadd8b708 80 return mbed_interface_uid(uid);
yihui 0:700cadd8b708 81 }
yihui 0:700cadd8b708 82 #endif
yihui 0:700cadd8b708 83
yihui 0:700cadd8b708 84 WEAK void mbed_mac_address(char *mac) {
yihui 0:700cadd8b708 85 #if DEVICE_SEMIHOST
yihui 0:700cadd8b708 86 char uid[DEVICE_ID_LENGTH + 1];
yihui 0:700cadd8b708 87 int i;
yihui 0:700cadd8b708 88
yihui 0:700cadd8b708 89 // if we have a UID, extract the MAC
yihui 0:700cadd8b708 90 if (mbed_interface_uid(uid) == 0) {
yihui 0:700cadd8b708 91 char *p = uid;
yihui 0:700cadd8b708 92 #if defined(DEVICE_MAC_OFFSET)
yihui 0:700cadd8b708 93 p += DEVICE_MAC_OFFSET;
yihui 0:700cadd8b708 94 #endif
yihui 0:700cadd8b708 95 for (i=0; i<6; i++) {
yihui 0:700cadd8b708 96 int byte;
yihui 0:700cadd8b708 97 sscanf(p, "%2x", &byte);
yihui 0:700cadd8b708 98 mac[i] = byte;
yihui 0:700cadd8b708 99 p += 2;
yihui 0:700cadd8b708 100 }
yihui 0:700cadd8b708 101 } else { // else return a default MAC
yihui 0:700cadd8b708 102 #endif
yihui 0:700cadd8b708 103 mac[0] = 0x00;
yihui 0:700cadd8b708 104 mac[1] = 0x02;
yihui 0:700cadd8b708 105 mac[2] = 0xF7;
yihui 0:700cadd8b708 106 mac[3] = 0xF0;
yihui 0:700cadd8b708 107 mac[4] = 0x00;
yihui 0:700cadd8b708 108 mac[5] = 0x00;
yihui 0:700cadd8b708 109 #if DEVICE_SEMIHOST
yihui 0:700cadd8b708 110 }
yihui 0:700cadd8b708 111 #endif
yihui 0:700cadd8b708 112 }