sortix-mirror/kernel/disk/ata/ata.cpp

67 lines
1.8 KiB
C++

/*******************************************************************************
Copyright(C) Jonas 'Sortie' Termansen 2011, 2012, 2013, 2014, 2015, 2016.
This file is part of Sortix.
Sortix is free software: you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later
version.
Sortix is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
details.
You should have received a copy of the GNU General Public License along with
Sortix. If not, see <http://www.gnu.org/licenses/>.
disk/ata/ata.cpp
Driver for ATA.
*******************************************************************************/
#include <stdarg.h>
#include <stdint.h>
#include <string.h>
#include <sortix/kernel/descriptor.h>
#include <sortix/kernel/kernel.h>
#include <sortix/kernel/pci.h>
#include <sortix/kernel/refcount.h>
#include "ata.h"
#include "hba.h"
namespace Sortix {
namespace ATA {
static void InitializeDevice(Ref<Descriptor> dev, const char* devpath,
uint32_t devaddr)
{
HBA* hba = new HBA(devaddr);
if ( !hba )
PanicF("Failed to allocate ATA driver for PCI device 0x%X", devaddr);
if ( !hba->Initialize(dev, devpath) )
return delete hba;
}
void Init(const char* devpath, Ref<Descriptor> dev)
{
uint32_t devaddr;
pcifind_t filter;
memset(&filter, 255, sizeof(filter));
filter.classid = 0x01;
filter.subclassid = 0x01;
devaddr = 0;
while ( (devaddr = PCI::SearchForDevices(filter, devaddr)) )
InitializeDevice(dev, devpath, devaddr);
}
} // namespace ATA
} // namespace Sortix