ObservingBlockDevice.cpp

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2017-2017 ARM Limited
00003  *
00004  * Permission is hereby granted, free of charge, to any person obtaining a copy
00005  * of this software and associated documentation files (the "Software"), to deal
00006  * in the Software without restriction, including without limitation the rights
00007  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00008  * copies of the Software, and to permit persons to whom the Software is
00009  * furnished to do so, subject to the following conditions:
00010  *
00011  * The above copyright notice and this permission notice shall be included in
00012  * all copies or substantial portions of the Software.
00013  *
00014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00017  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00018  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00019  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
00020  * SOFTWARE.
00021  */
00022 
00023 #include "ObservingBlockDevice.h"
00024 #include "ReadOnlyBlockDevice.h"
00025 #include "mbed.h"
00026 
00027 
00028 ObservingBlockDevice::ObservingBlockDevice(BlockDevice *bd)
00029     : _bd(bd)
00030 {
00031     // Does nothing
00032 }
00033 
00034 ObservingBlockDevice::~ObservingBlockDevice()
00035 {
00036     // Does nothing
00037 }
00038 
00039 void ObservingBlockDevice::attach(Callback<void(BlockDevice *)> cb)
00040 {
00041     _change = cb;
00042 }
00043 
00044 int ObservingBlockDevice::init()
00045 {
00046     return _bd->init();
00047 }
00048 
00049 int ObservingBlockDevice::deinit()
00050 {
00051     return _bd->deinit();
00052 }
00053 
00054 int ObservingBlockDevice::read(void *buffer, bd_addr_t addr, bd_size_t size)
00055 {
00056     return _bd->read(buffer, addr, size);
00057 }
00058 
00059 int ObservingBlockDevice::program(const void *buffer, bd_addr_t addr, bd_size_t size)
00060 {
00061     int res = _bd->program(buffer, addr, size);
00062     if (_change) {
00063         ReadOnlyBlockDevice dev(_bd);
00064         _change(&dev);
00065     }
00066     return res;
00067 }
00068 
00069 int ObservingBlockDevice::erase(bd_addr_t addr, bd_size_t size)
00070 {
00071     int res = _bd->erase(addr, size);
00072     if (_change) {
00073         ReadOnlyBlockDevice dev(_bd);
00074         _change(&dev);
00075     }
00076     return res;
00077 }
00078 
00079 bd_size_t ObservingBlockDevice::get_read_size() const
00080 {
00081     return _bd->get_read_size();
00082 }
00083 
00084 bd_size_t ObservingBlockDevice::get_program_size() const
00085 {
00086     return _bd->get_program_size();
00087 }
00088 
00089 bd_size_t ObservingBlockDevice::get_erase_size() const
00090 {
00091     return _bd->get_erase_size();
00092 }
00093 
00094 bd_size_t ObservingBlockDevice::size() const
00095 {
00096     return _bd->size();
00097 }