forked from Bananymous/banan-os
74 lines
1.8 KiB
C++
74 lines
1.8 KiB
C++
#include <kernel/FS/DevFS/FileSystem.h>
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#include <kernel/Storage/ATA/AHCI/Controller.h>
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#include <kernel/Storage/ATA/ATABus.h>
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#include <kernel/Storage/ATA/ATAController.h>
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#include <kernel/Storage/ATA/ATADefinitions.h>
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#include <kernel/Storage/ATA/ATADevice.h>
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namespace Kernel
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{
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BAN::ErrorOr<BAN::RefPtr<StorageController>> ATAController::create(PCI::Device& pci_device)
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{
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StorageController* controller_ptr = nullptr;
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switch (pci_device.subclass())
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{
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case 0x01:
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controller_ptr = new ATAController(pci_device);
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break;
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case 0x05:
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dwarnln("unsupported DMA ATA Controller");
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return BAN::Error::from_errno(ENOTSUP);
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case 0x06:
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controller_ptr = new AHCIController(pci_device);
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break;
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default:
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ASSERT_NOT_REACHED();
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}
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if (controller_ptr == nullptr)
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return BAN::Error::from_errno(ENOMEM);
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auto controller = BAN::RefPtr<StorageController>::adopt(controller_ptr);
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TRY(controller->initialize());
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return controller;
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}
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BAN::ErrorOr<void> ATAController::initialize()
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{
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BAN::Vector<BAN::RefPtr<ATABus>> buses;
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uint8_t prog_if = m_pci_device.read_byte(0x09);
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if (!(prog_if & ATA_PROGIF_PRIMARY_NATIVE))
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{
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auto bus_or_error = ATABus::create(0x1F0, 0x3F6, 14);
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if (bus_or_error.is_error())
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dprintln("IDE ATABus: {}", bus_or_error.error());
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else
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TRY(buses.push_back(bus_or_error.release_value()));
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}
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else
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{
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dprintln("unsupported IDE ATABus in native mode");
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}
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// BUS 2
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if (!(prog_if & ATA_PROGIF_SECONDARY_NATIVE))
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{
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auto bus_or_error = ATABus::create(0x170, 0x376, 15);
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if (bus_or_error.is_error())
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dprintln("IDE ATABus: {}", bus_or_error.error());
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else
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TRY(buses.push_back(bus_or_error.release_value()));
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}
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else
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{
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dprintln("unsupported IDE ATABus in native mode");
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}
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return {};
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}
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} |