87 lines
1.8 KiB
C++
87 lines
1.8 KiB
C++
/*
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* \brief Block interface for ATA driver
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* \author Stefan Kalkowski <stefan.kalkowski@genode-labs.com>
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* \author Sebastian Sumpf <sebastian.sumpf@genode-labs.com>
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* \date 2010-07-16
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*/
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/*
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* Copyright (C) 2010-2013 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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/* Genode includes */
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#include <base/thread.h>
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#include <cap_session/connection.h>
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#include <os/config.h>
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/* local includes */
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#include "ata_device.h"
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#include "mindrvr.h"
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using namespace Genode;
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using namespace Ata;
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struct Factory : Block::Driver_factory
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{
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Ata::Device *device;
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Factory() : device(0)
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{
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/* determine if we probe for ATA or ATAPI */
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bool ata = false;
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try {
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ata = config()->xml_node().attribute("ata").has_value("yes");
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} catch (...) {}
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int type = ata ? REG_CONFIG_TYPE_ATA : REG_CONFIG_TYPE_ATAPI;
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/*
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* Probe for ATA(PI) device, but only once
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*/
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device = Ata::Device::probe_legacy(type);
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device->read_capacity();
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}
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Block::Driver *create()
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{
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if (!device) {
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PERR("No device present");
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throw Root::Unavailable();
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}
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if (Atapi_device *atapi_device = dynamic_cast<Atapi_device *>(device))
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if (!atapi_device->test_unit_ready()) {
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PERR("No disc present");
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throw Root::Unavailable();
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}
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return device;
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}
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void destroy(Block::Driver *driver) { }
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};
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int main()
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{
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enum { STACK_SIZE = 8192 };
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static Cap_connection cap;
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static Rpc_entrypoint ep(&cap, STACK_SIZE, "atapi_ep");
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static Signal_receiver receiver;
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static Factory driver_factory;
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static Block::Root block_root(&ep, env()->heap(), driver_factory, receiver);
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env()->parent()->announce(ep.manage(&block_root));
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while (true) {
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Signal s = receiver.wait_for_signal();
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static_cast<Signal_dispatcher_base *>(s.context())->dispatch(s.num());
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}
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return 0;
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}
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