klipper/lib/bossac/src/Applet.cpp

65 lines
2.4 KiB
C++

///////////////////////////////////////////////////////////////////////////////
// BOSSA
//
// Copyright (c) 2011-2018, ShumaTech
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of the <organization> nor the
// names of its contributors may be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
///////////////////////////////////////////////////////////////////////////////
#include "Applet.h"
Applet::Applet(Samba& samba,
uint32_t addr,
uint8_t* code,
uint32_t size,
uint32_t start,
uint32_t stack,
uint32_t reset) :
_samba(samba), _addr(addr), _size(size), _start(start), _stack(stack), _reset(reset)
{
_samba.write(addr, code, size);
}
void
Applet::setStack(uint32_t stack)
{
_samba.writeWord(_stack, stack);
}
void
Applet::run()
{
// Add one to the start address for Thumb mode
_samba.go(_start + 1);
}
void
Applet::runv()
{
// Add one to the start address for Thumb mode
_samba.writeWord(_reset, _start + 1);
// The stack is the first reset vector
_samba.go(_stack);
}