genode/repos/os/src/drivers/sd_card/driver_base.h

55 lines
1.2 KiB
C++

/*
* \brief Generic parts of an SD card block-driver
* \author Norman Feske
* \author Timo Wischer
* \author Martin Stein
* \date 2017-01-03
*/
/*
* Copyright (C) 2017 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU Affero General Public License version 3.
*/
#ifndef _DRIVER_BASE_H_
#define _DRIVER_BASE_H_
/* Genode includes */
#include <block/component.h>
/* local includes */
#include <sd_card.h>
namespace Sd_card { class Driver_base; }
class Sd_card::Driver_base : public Block::Driver,
protected Host_controller
{
public:
Driver_base(Genode::Ram_allocator &ram)
: Block::Driver(ram) { }
/*******************
** Block::Driver **
*******************/
Genode::size_t block_size() override { return 512; }
Block::sector_t block_count() override {
return card_info().capacity_mb() * 1024 * 2; }
Block::Session::Operations ops() override
{
Block::Session::Operations ops;
ops.set_operation(Block::Packet_descriptor::READ);
ops.set_operation(Block::Packet_descriptor::WRITE);
return ops;
}
};
#endif /* _DRIVER_BASE_H_ */