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Restructured and rewritten entire codebase

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Alex
2023-10-09 01:16:24 +03:00
parent 446a571018
commit 889e1522a3
484 changed files with 15683 additions and 14032 deletions
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207
modules/Realtek/RTL8139.cpp Normal file
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/*
This file is part of Fennix Kernel.
Fennix Kernel 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.
Fennix Kernel 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 Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
*/
#include "rtl8139.hpp"
#include <net/net.hpp>
#include <debug.h>
#include <pci.hpp>
#include <io.h>
#include "../../mapi.hpp"
#include "../mod.hpp"
using namespace PCI;
namespace RTL8139
{
KernelAPI KAPI;
PCIDeviceHeader *PCIBaseAddress;
BARData BAR;
uint8_t *RXBuffer;
int TXCurrent;
uint16_t CurrentPacket;
MediaAccessControl MAC;
InternetProtocol::Version4 IP;
uint8_t TSAD[4] = {0x20, 0x24, 0x28, 0x2C};
uint8_t TSD[4] = {0x10, 0x14, 0x18, 0x1C};
void RTLOB(uint16_t Address, uint8_t Value)
{
if (BAR.Type == 0)
mmoutb(reinterpret_cast<void *>(BAR.MemoryBase + Address), Value);
else
outportb(BAR.IOBase + Address, Value);
}
void RTLOW(uint16_t Address, uint16_t Value)
{
if (BAR.Type == 0)
mmoutw(reinterpret_cast<void *>(BAR.MemoryBase + Address), Value);
else
outportw(BAR.IOBase + Address, Value);
}
void RTLOL(uint16_t Address, uint32_t Value)
{
if (BAR.Type == 0)
mmoutl(reinterpret_cast<void *>(BAR.MemoryBase + Address), Value);
else
outportl(BAR.IOBase + Address, Value);
}
uint8_t RTLIB(uint16_t Address)
{
if (BAR.Type == 0)
return mminb(reinterpret_cast<void *>(BAR.MemoryBase + Address));
else
return inportb(BAR.IOBase + Address);
}
uint16_t RTLIW(uint16_t Address)
{
if (BAR.Type == 0)
return mminw(reinterpret_cast<void *>(BAR.MemoryBase + Address));
else
return inportw(BAR.IOBase + Address);
}
uint32_t RTLIL(uint16_t Address)
{
if (BAR.Type == 0)
return mminl(reinterpret_cast<void *>(BAR.MemoryBase + Address));
else
return inportl(BAR.IOBase + Address);
}
MediaAccessControl GetMAC()
{
uint32_t MAC1 = RTLIL(0x0);
uint16_t MAC2 = RTLIW(0x4);
MediaAccessControl mac = {
mac.Address[0] = (uint8_t)MAC1,
mac.Address[1] = (uint8_t)(MAC1 >> 8),
mac.Address[2] = (uint8_t)(MAC1 >> 16),
mac.Address[3] = (uint8_t)(MAC1 >> 24),
mac.Address[4] = (uint8_t)MAC2,
mac.Address[5] = (uint8_t)(MAC2 >> 8)};
return mac;
}
int DriverEntry(void *Data)
{
if (!Data)
return INVALID_KERNEL_API;
KAPI = *(KernelAPI *)Data;
if (KAPI.Version.Major < 0 || KAPI.Version.Minor < 0 || KAPI.Version.Patch < 0)
return KERNEL_API_VERSION_NOT_SUPPORTED;
return OK;
}
int CallbackHandler(KernelCallback *Data)
{
switch (Data->Reason)
{
case AcknowledgeReason:
{
debug("Kernel acknowledged the driver.");
break;
}
case ConfigurationReason:
{
debug("Module received configuration data.");
PCIBaseAddress = reinterpret_cast<PCIDeviceHeader *>(Data->RawPtr);
if (PCIBaseAddress->VendorID == 0x10EC && PCIBaseAddress->DeviceID == 0x8139)
{
trace("Found RTL-8139.");
PCIBaseAddress->Command |= PCI_COMMAND_MASTER | PCI_COMMAND_IO | PCI_COMMAND_MEMORY;
uint32_t PCIBAR0 = ((PCIHeader0 *)PCIBaseAddress)->BAR0;
uint32_t PCIBAR1 = ((PCIHeader0 *)PCIBaseAddress)->BAR1;
BAR.Type = PCIBAR1 & 1;
BAR.IOBase = (uint16_t)(PCIBAR0 & (~3));
BAR.MemoryBase = PCIBAR1 & (~15);
RXBuffer = (uint8_t *)KAPI.Memory.RequestPage(2);
RTLOB(0x52, 0x0);
RTLOB(0x37, (1 << 4));
while ((RTLIB(0x37) & (1 << 4)))
;
RTLOL(0x30, static_cast<uint32_t>(reinterpret_cast<uint64_t>(RXBuffer)));
RTLOW(0x3C, ((1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) |
(1 << 4) | (1 << 5) | (1 << 6) | (1 << 13) |
(1 << 14) | (1 << 15)));
RTLOL(0x44, ((1 << 0) | (1 << 1) | (1 << 2) | (1 << 3) | (1 << 7)));
RTLOB(0x37, 0x0C);
MAC = GetMAC();
}
else
return DEVICE_NOT_SUPPORTED;
break;
}
case QueryReason:
{
memcpy(Data->NetworkCallback.Fetch.Name, (void *)"RTL-8139", 9);
Data->NetworkCallback.Fetch.MAC = MAC.ToHex();
break;
}
case SendReason:
{
RTLOL(TSAD[TXCurrent], static_cast<uint32_t>(reinterpret_cast<uint64_t>(Data->NetworkCallback.Send.Data)));
RTLOL(TSD[TXCurrent++], (uint32_t)Data->NetworkCallback.Send.Length);
if (TXCurrent > 3)
TXCurrent = 0;
break;
}
case StopReason:
{
// TODO: Stop the driver.
debug("Module stopped.");
break;
}
default:
{
warn("Unknown reason.");
break;
}
}
return OK;
}
int InterruptCallback(CPURegisters *)
{
uint16_t Status = RTLIW(0x3E);
UNUSED(Status);
uint16_t *Data = (uint16_t *)(RXBuffer + CurrentPacket);
uint16_t DataLength = *(Data + 1);
Data = Data + 2;
KAPI.Command.Network.ReceivePacket(KAPI.Info.modUniqueID, (uint8_t *)Data, DataLength);
CurrentPacket = (uint16_t)((CurrentPacket + DataLength + 4 + 3) & (~3));
if (CurrentPacket > 8192)
CurrentPacket -= 8192;
RTLOW(0x38, CurrentPacket - 0x10);
RTLOW(0x3E, (1 << 0) | (1 << 2));
return OK;
}
}