tmk_core/tool/mbed/mbed-sdk/libraries/mbed/api/mbed_interface.h

   1 /* mbed Microcontroller Library
   2  * Copyright (c) 2006-2013 ARM Limited
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 #ifndef MBED_INTERFACE_H
  17 #define MBED_INTERFACE_H
  18
  19 #include "device.h"
  20
  21 /* Mbed interface mac address
  22  * if MBED_MAC_ADD_x are zero, interface uid sets mac address,
  23  * otherwise MAC_ADD_x are used.
  24  */
  25 #define MBED_MAC_ADDR_INTERFACE 0x00
  26 #define MBED_MAC_ADDR_0  MBED_MAC_ADDR_INTERFACE
  27 #define MBED_MAC_ADDR_1  MBED_MAC_ADDR_INTERFACE
  28 #define MBED_MAC_ADDR_2  MBED_MAC_ADDR_INTERFACE
  29 #define MBED_MAC_ADDR_3  MBED_MAC_ADDR_INTERFACE
  30 #define MBED_MAC_ADDR_4  MBED_MAC_ADDR_INTERFACE
  31 #define MBED_MAC_ADDR_5  MBED_MAC_ADDR_INTERFACE
  32 #define MBED_MAC_ADDRESS_SUM (MBED_MAC_ADDR_0 | MBED_MAC_ADDR_1 | MBED_MAC_ADDR_2 | MBED_MAC_ADDR_3 | MBED_MAC_ADDR_4 | MBED_MAC_ADDR_5)
  33
  34 #ifdef __cplusplus
  35 extern "C" {
  36 #endif
  37
  38 #if DEVICE_SEMIHOST
  39
  40 /** Functions to control the mbed interface
  41  *
  42  * mbed Microcontrollers have a built-in interface to provide functionality such as
  43  * drag-n-drop download, reset, serial-over-usb, and access to the mbed local file
  44  * system. These functions provide means to control the interface suing semihost
  45  * calls it supports.
  46  */
  47
  48 /** Determine whether the mbed interface is connected, based on whether debug is enabled
  49  *
  50  *  @returns
  51  *    1 if interface is connected,
  52  *    0 otherwise
  53  */
  54 int mbed_interface_connected(void);
  55
  56 /** Instruct the mbed interface to reset, as if the reset button had been pressed
  57  *
  58  *  @returns
  59  *    1 if successful,
  60  *    0 otherwise (e.g. interface not present)
  61  */
  62 int mbed_interface_reset(void);
  63
  64 /** This will disconnect the debug aspect of the interface, so semihosting will be disabled.
  65  * The interface will still support the USB serial aspect
  66  *
  67  *  @returns
  68  *    0 if successful,
  69  *   -1 otherwise (e.g. interface not present)
  70  */
  71 int mbed_interface_disconnect(void);
  72
  73 /** This will disconnect the debug aspect of the interface, and if the USB cable is not
  74  * connected, also power down the interface. If the USB cable is connected, the interface
  75  * will remain powered up and visible to the host
  76  *
  77  *  @returns
  78  *    0 if successful,
  79  *   -1 otherwise (e.g. interface not present)
  80  */
  81 int mbed_interface_powerdown(void);
  82
  83 /** This returns a string containing the 32-character UID of the mbed interface
  84  *  This is a weak function that can be overwritten if required
  85  *
  86  *  @param uid A 33-byte array to write the null terminated 32-byte string
  87  *
  88  *  @returns
  89  *    0 if successful,
  90  *   -1 otherwise (e.g. interface not present)
  91  */
  92 int mbed_interface_uid(char *uid);
  93
  94 #endif
  95
  96 /** This returns a unique 6-byte MAC address, based on the interface UID
  97  * If the interface is not present, it returns a default fixed MAC address (00:02:F7:F0:00:00)
  98  *
  99  * This is a weak function that can be overwritten if you want to provide your own mechanism to
 100  * provide a MAC address.
 101  *
 102  *  @param mac A 6-byte array to write the MAC address
 103  */
 104 void mbed_mac_address(char *mac);
 105
 106 /** Cause the mbed to flash the BLOD (Blue LEDs Of Death) sequence
 107  */
 108 void mbed_die(void);
 109
 110 #ifdef __cplusplus
 111 }
 112 #endif
 113
 114 #endif