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EnderIce2
2024-01-19 06:47:42 +02:00
parent fd15592608
commit 96daa43d38
282 changed files with 25486 additions and 15700 deletions
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core/driver/api.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 <driver.hpp>
#include "../../kernel.h"
#include "../../driver.h"
// #define DEBUG_API
#ifdef DEBUG_API
#define dbg_api(Format, ...) function(Format, ##__VA_ARGS__)
#else
#define dbg_api(Format, ...)
#endif
using enum PCI::PCICommands;
#define VMWARE_MAGIC 0x564D5868 /* hXMV */
#define VMWARE_PORT 0x5658
#define CMD_GETVERSION 0xA
namespace Driver
{
int RegisterFunction(dev_t MajorID, void *Function, __driverRegFunc Type)
{
dbg_api("%d, %#lx, %d", MajorID, (uintptr_t)Function, Type);
std::unordered_map<dev_t, DriverObject> &Drivers =
DriverManager->GetDrivers();
auto itr = Drivers.find(MajorID);
if (itr == Drivers.end())
return -EINVAL;
DriverObject *drv = &itr->second;
switch (Type)
{
case _drf_Entry:
drv->Entry = (int (*)())Function;
debug("Entry %#lx for %s", (uintptr_t)Function, drv->Path);
break;
case _drf_Final:
drv->Final = (int (*)())Function;
debug("Finalize %#lx for %s", (uintptr_t)Function, drv->Path);
break;
case _drf_Panic:
drv->Panic = (int (*)())Function;
debug("Panic %#lx for %s", (uintptr_t)Function, drv->Path);
break;
case _drf_Probe:
drv->Probe = (int (*)())Function;
debug("Probe %#lx for %s", (uintptr_t)Function, drv->Path);
break;
default:
assert(!"Invalid driver function type");
}
return 0;
}
int GetDriverInfo(dev_t MajorID, const char *Name, const char *Description, const char *Author, const char *Version, const char *License)
{
dbg_api("%d, %s, %s, %s, %s, %s", MajorID, Name, Description, Author, Version, License);
std::unordered_map<dev_t, DriverObject> &Drivers =
DriverManager->GetDrivers();
auto itr = Drivers.find(MajorID);
if (itr == Drivers.end())
return -EINVAL;
DriverObject *drv = &itr->second;
strncpy(drv->Name, Name, sizeof(drv->Name));
strncpy(drv->Description, Description, sizeof(drv->Description));
strncpy(drv->Author, Author, sizeof(drv->Author));
strncpy(drv->Version, Version, sizeof(drv->Version));
strncpy(drv->License, License, sizeof(drv->License));
return 0;
}
/* --------- */
int RegisterInterruptHandler(dev_t MajorID, uint8_t IRQ, void *Handler)
{
dbg_api("%d, %d, %#lx", MajorID, IRQ, Handler);
std::unordered_map<dev_t, DriverObject> &Drivers =
DriverManager->GetDrivers();
auto itr = Drivers.find(MajorID);
if (itr == Drivers.end())
return -EINVAL;
DriverObject *drv = &itr->second;
if (drv->InterruptHandlers->contains(IRQ))
return -EEXIST;
Interrupts::AddHandler((void (*)(CPU::TrapFrame *))Handler, IRQ);
drv->InterruptHandlers->insert(std::pair<uint8_t, void *>(IRQ, Handler));
return 0;
}
int OverrideInterruptHandler(dev_t MajorID, uint8_t IRQ, void *Handler)
{
dbg_api("%d, %d, %#lx", MajorID, IRQ, Handler);
debug("Overriding IRQ %d with %#lx", IRQ, Handler);
std::unordered_map<dev_t, DriverObject> &Drivers =
DriverManager->GetDrivers();
foreach (auto &var in Drivers)
{
DriverObject *drv = &var.second;
foreach (auto &ih in * drv->InterruptHandlers)
{
if (ih.first == IRQ)
{
debug("Removing IRQ %d: %#lx for %s", IRQ, (uintptr_t)ih.second, drv->Path);
Interrupts::RemoveHandler((void (*)(CPU::TrapFrame *))ih.second, IRQ);
drv->InterruptHandlers->erase(IRQ);
break;
}
}
}
return RegisterInterruptHandler(MajorID, IRQ, Handler);
}
int UnregisterInterruptHandler(dev_t MajorID, uint8_t IRQ, void *Handler)
{
dbg_api("%d, %d, %#lx", MajorID, IRQ, Handler);
std::unordered_map<dev_t, DriverObject> &Drivers =
DriverManager->GetDrivers();
auto itr = Drivers.find(MajorID);
if (itr == Drivers.end())
return -EINVAL;
DriverObject *drv = &itr->second;
Interrupts::RemoveHandler((void (*)(CPU::TrapFrame *))Handler, IRQ);
drv->InterruptHandlers->erase(IRQ);
return 0;
}
int UnregisterAllInterruptHandlers(dev_t MajorID, void *Handler)
{
dbg_api("%d, %#lx", MajorID, Handler);
std::unordered_map<dev_t, DriverObject> &Drivers =
DriverManager->GetDrivers();
auto itr = Drivers.find(MajorID);
if (itr == Drivers.end())
return -EINVAL;
DriverObject *drv = &itr->second;
foreach (auto &i in * drv->InterruptHandlers)
{
Interrupts::RemoveHandler((void (*)(CPU::TrapFrame *))Handler, i.first);
debug("Removed IRQ %d: %#lx for %s", i.first, (uintptr_t)Handler, drv->Path);
}
drv->InterruptHandlers->clear();
return 0;
}
/* --------- */
dev_t RegisterInputDevice(dev_t MajorID, DeviceDriverType Type)
{
dbg_api("%d, %d", MajorID, Type);
switch (Type)
{
case ddt_Keyboard:
return DriverManager->InputKeyboardDev->Register(MajorID);
case ddt_Mouse:
return DriverManager->InputMouseDev->Register(MajorID);
/* ... */
default:
assert(!"Invalid input device type");
}
}
int UnregisterInputDevice(dev_t MajorID, dev_t MinorID, DeviceDriverType Type)
{
dbg_api("%d, %d, %d", MajorID, MinorID, Type);
switch (Type)
{
case ddt_Keyboard:
return DriverManager->InputKeyboardDev->Unregister(MajorID, MinorID);
case ddt_Mouse:
return DriverManager->InputMouseDev->Unregister(MajorID, MinorID);
/* ... */
default:
assert(!"Invalid input device type");
}
}
int ReportKeyboardEvent(dev_t MajorID, dev_t MinorID, uint8_t ScanCode)
{
dbg_api("%d, %d, %d", MajorID, MinorID, ScanCode);
return DriverManager->InputKeyboardDev->ReportKeyEvent(MajorID, MinorID, ScanCode);
}
int ReportRelativeMouseEvent(dev_t MajorID, dev_t MinorID, __MouseButtons Button, int X, int Y, int8_t Z)
{
dbg_api("%d, %d, %d, %d, %d, %d", MajorID, MinorID, Button, X, Y, Z);
return DriverManager->InputMouseDev->ReportMouseEvent(MajorID, MinorID,
Button.LeftButton, Button.RightButton, Button.MiddleButton,
Button.Button4, Button.Button5, Button.Button6, Button.Button7, Button.Button8,
X, Y, Z, true);
}
int ReportAbsoluteMouseEvent(dev_t MajorID, dev_t MinorID, __MouseButtons Button, uintptr_t X, uintptr_t Y, int8_t Z)
{
dbg_api("%d, %d, %d, %d, %d, %d", MajorID, MinorID, Button, X, Y, Z);
return DriverManager->InputMouseDev->ReportMouseEvent(MajorID, MinorID,
Button.LeftButton, Button.RightButton, Button.MiddleButton,
Button.Button4, Button.Button5, Button.Button6, Button.Button7, Button.Button8,
X, Y, Z, false);
}
/* --------- */
dev_t RegisterBlockDevice(dev_t MajorID, DeviceDriverType Type, void *Open, void *Close, void *Read, void *Write, void *Ioctl)
{
dbg_api("%d, %d, %#lx, %#lx, %#lx, %#lx, %#lx", MajorID, Type, Open, Close, Read, Write, Ioctl);
switch (Type)
{
case ddt_SATA:
{
dev_t ret = DriverManager->BlockSATADev->Register(MajorID);
DriverManager->BlockSATADev->NewBlock(MajorID, ret,
(SlaveDeviceFile::drvOpen_t)Open,
(SlaveDeviceFile::drvClose_t)Close,
(SlaveDeviceFile::drvRead_t)Read,
(SlaveDeviceFile::drvWrite_t)Write,
(SlaveDeviceFile::drvIoctl_t)Ioctl);
return ret;
}
case ddt_ATA:
{
dev_t ret = DriverManager->BlockHDDev->Register(MajorID);
DriverManager->BlockHDDev->NewBlock(MajorID, ret,
(SlaveDeviceFile::drvOpen_t)Open,
(SlaveDeviceFile::drvClose_t)Close,
(SlaveDeviceFile::drvRead_t)Read,
(SlaveDeviceFile::drvWrite_t)Write,
(SlaveDeviceFile::drvIoctl_t)Ioctl);
return ret;
}
case ddt_NVMe:
{
dev_t ret = DriverManager->BlockNVMeDev->Register(MajorID);
DriverManager->BlockNVMeDev->NewBlock(MajorID, ret,
(SlaveDeviceFile::drvOpen_t)Open,
(SlaveDeviceFile::drvClose_t)Close,
(SlaveDeviceFile::drvRead_t)Read,
(SlaveDeviceFile::drvWrite_t)Write,
(SlaveDeviceFile::drvIoctl_t)Ioctl);
return ret;
}
/* ... */
default:
assert(!"Invalid storage device type");
}
}
int UnregisterBlockDevice(dev_t MajorID, dev_t MinorID, DeviceDriverType Type)
{
dbg_api("%d, %d, %d", MajorID, MinorID, Type);
switch (Type)
{
case ddt_SATA:
return DriverManager->BlockSATADev->Unregister(MajorID, MinorID);
case ddt_ATA:
return DriverManager->BlockHDDev->Unregister(MajorID, MinorID);
case ddt_NVMe:
return DriverManager->BlockNVMeDev->Unregister(MajorID, MinorID);
/* ... */
default:
assert(!"Invalid storage device type");
}
}
/* --------- */
dev_t RegisterAudioDevice(dev_t MajorID, DeviceDriverType Type, void *Open, void *Close, void *Read, void *Write, void *Ioctl)
{
dbg_api("%d, %d, %#lx, %#lx, %#lx, %#lx, %#lx", MajorID, Type, Open, Close, Read, Write, Ioctl);
switch (Type)
{
case ddt_Audio:
{
dev_t ret = DriverManager->AudioDev->Register(MajorID);
DriverManager->AudioDev->NewAudio(MajorID, ret,
(SlaveDeviceFile::drvOpen_t)Open,
(SlaveDeviceFile::drvClose_t)Close,
(SlaveDeviceFile::drvRead_t)Read,
(SlaveDeviceFile::drvWrite_t)Write,
(SlaveDeviceFile::drvIoctl_t)Ioctl);
return ret;
}
/* ... */
default:
assert(!"Invalid audio device type");
}
}
int UnregisterAudioDevice(dev_t MajorID, dev_t MinorID, DeviceDriverType Type)
{
dbg_api("%d, %d, %d", MajorID, MinorID, Type);
switch (Type)
{
case ddt_Audio:
return DriverManager->AudioDev->Unregister(MajorID, MinorID);
/* ... */
default:
assert(!"Invalid audio device type");
}
}
/* --------- */
dev_t RegisterNetDevice(dev_t MajorID, DeviceDriverType Type, void *Open, void *Close, void *Read, void *Write, void *Ioctl)
{
dbg_api("%d, %d, %#lx, %#lx, %#lx, %#lx, %#lx", MajorID, Type, Open, Close, Read, Write, Ioctl);
switch (Type)
{
case ddt_Network:
{
dev_t ret = DriverManager->NetDev->Register(MajorID);
DriverManager->NetDev->NewNet(MajorID, ret,
(SlaveDeviceFile::drvOpen_t)Open,
(SlaveDeviceFile::drvClose_t)Close,
(SlaveDeviceFile::drvRead_t)Read,
(SlaveDeviceFile::drvWrite_t)Write,
(SlaveDeviceFile::drvIoctl_t)Ioctl);
return ret;
}
/* ... */
default:
assert(!"Invalid audio device type");
}
}
int UnregisterNetDevice(dev_t MajorID, dev_t MinorID, DeviceDriverType Type)
{
dbg_api("%d, %d, %d", MajorID, MinorID, Type);
switch (Type)
{
case ddt_Network:
return DriverManager->NetDev->Unregister(MajorID, MinorID);
/* ... */
default:
assert(!"Invalid audio device type");
}
}
int ReportNetworkPacket(dev_t MajorID, dev_t MinorID, void *Buffer, size_t Size)
{
dbg_api("%d, %d, %#lx, %d", MajorID, MinorID, Buffer, Size);
return DriverManager->NetDev->ReportNetworkPacket(MajorID, MinorID, Buffer, Size);
}
/* --------- */
void d_KPrint(dev_t MajorID, const char *Format, va_list args)
{
dbg_api("%d %s, %#lx", MajorID, Format, args);
_KPrint(Format, args);
}
void KernelLog(dev_t MajorID, const char *Format, va_list args)
{
dbg_api("%d, %s, %#lx", MajorID, Format, args);
fctprintf(uart_wrapper, nullptr, "DRVER| %ld: ", MajorID);
vfctprintf(uart_wrapper, nullptr, Format, args);
uart_wrapper('\n', nullptr);
}
/* --------- */
void *RequestPages(dev_t MajorID, size_t Pages)
{
dbg_api("%d, %d", MajorID, Pages);
std::unordered_map<dev_t, DriverObject> &Drivers =
DriverManager->GetDrivers();
auto itr = Drivers.find(MajorID);
assert(itr != Drivers.end());
return itr->second.vma->RequestPages(Pages);
}
void FreePages(dev_t MajorID, void *Pointer, size_t Pages)
{
dbg_api("%d, %#lx, %d", MajorID, Pointer, Pages);
std::unordered_map<dev_t, DriverObject> &Drivers =
DriverManager->GetDrivers();
auto itr = Drivers.find(MajorID);
assert(itr != Drivers.end());
itr->second.vma->FreePages(Pointer, Pages);
}
/* --------- */
void AppendMapFlag(dev_t MajorID, void *Address, PageMapFlags Flag)
{
dbg_api("%d, %#lx, %d", MajorID, Address, Flag);
Memory::Virtual vmm(KernelPageTable);
vmm.GetPTE(Address)->raw |= Flag;
}
void RemoveMapFlag(dev_t MajorID, void *Address, PageMapFlags Flag)
{
dbg_api("%d, %#lx, %d", MajorID, Address, Flag);
Memory::Virtual vmm(KernelPageTable);
vmm.GetPTE(Address)->raw &= ~Flag;
}
void MapPages(dev_t MajorID, void *PhysicalAddress, void *VirtualAddress, size_t Pages, uint32_t Flags)
{
dbg_api("%d, %#lx, %#lx, %d, %d", MajorID, PhysicalAddress, VirtualAddress, Pages, Flags);
Memory::Virtual vmm(KernelPageTable);
vmm.Map(VirtualAddress, PhysicalAddress, Pages, Flags);
}
void UnmapPages(dev_t MajorID, void *VirtualAddress, size_t Pages)
{
dbg_api("%d, %#lx, %d", MajorID, VirtualAddress, Pages);
Memory::Virtual vmm(KernelPageTable);
vmm.Unmap(VirtualAddress, Pages);
}
/* --------- */
pid_t CreateKernelProcess(dev_t MajorID, const char *Name)
{
dbg_api("%d, %s", MajorID, Name);
Tasking::PCB *pcb = TaskManager->CreateProcess(nullptr,
Name, Tasking::System,
nullptr, true, 0, 0);
return pcb->ID;
}
pid_t CreateKernelThread(dev_t MajorID, pid_t pId, const char *Name, void *EntryPoint, void *Argument)
{
dbg_api("%d, %d, %s, %#lx, %#lx", MajorID, pId, Name, EntryPoint, Argument);
Tasking::PCB *parent = TaskManager->GetProcessByID(pId);
if (!parent)
return -EINVAL;
CriticalSection cs;
Tasking::TCB *tcb = TaskManager->CreateThread(parent, (Tasking::IP)EntryPoint);
if (Argument)
tcb->SYSV_ABI_Call((uintptr_t)Argument);
tcb->Rename(Name);
return tcb->ID;
}
int KillProcess(dev_t MajorID, pid_t pId, int ExitCode)
{
dbg_api("%d, %d, %d", MajorID, pId, ExitCode);
Tasking::PCB *pcb = TaskManager->GetProcessByID(pId);
if (!pcb)
return -EINVAL;
TaskManager->KillProcess(pcb, (Tasking::KillCode)ExitCode);
return 0;
}
int KillThread(dev_t MajorID, pid_t tId, int ExitCode)
{
dbg_api("%d, %d, %d", MajorID, tId, ExitCode);
Tasking::TCB *tcb = TaskManager->GetThreadByID(tId);
if (!tcb)
return -EINVAL;
TaskManager->KillThread(tcb, (Tasking::KillCode)ExitCode);
return 0;
}
void Yield(dev_t MajorID)
{
dbg_api("%d", MajorID);
TaskManager->Yield();
}
void Sleep(dev_t MajorID, uint64_t Milliseconds)
{
dbg_api("%d, %d", MajorID, Milliseconds);
TaskManager->Sleep(Milliseconds);
}
/* --------- */
__PCIArray *GetPCIDevices(dev_t MajorID, uint16_t _Vendors[], uint16_t _Devices[])
{
dbg_api("%d, %#lx, %#lx", MajorID, _Vendors, _Devices);
std::unordered_map<dev_t, DriverObject> &Drivers =
DriverManager->GetDrivers();
auto itr = Drivers.find(MajorID);
if (itr == Drivers.end())
return nullptr;
std::list<uint16_t> VendorIDs;
for (int i = 0; _Vendors[i] != 0x0; i++)
VendorIDs.push_back(_Vendors[i]);
std::list<uint16_t> DeviceIDs;
for (int i = 0; _Devices[i] != 0x0; i++)
DeviceIDs.push_back(_Devices[i]);
std::list<PCI::PCIDevice> Devices = PCIManager->FindPCIDevice(VendorIDs, DeviceIDs);
if (Devices.empty())
return nullptr;
Memory::VirtualMemoryArea *vma = itr->second.vma;
__PCIArray *head = nullptr;
__PCIArray *array = nullptr;
foreach (auto &dev in Devices)
{
/* TODO: optimize memory allocation */
PCI::PCIDevice *dptr = (PCI::PCIDevice *)vma->RequestPages(TO_PAGES(sizeof(PCI::PCIDevice)));
memcpy(dptr, &dev, sizeof(PCI::PCIDevice));
__PCIArray *newArray = (__PCIArray *)vma->RequestPages(TO_PAGES(sizeof(__PCIArray)));
if (unlikely(head == nullptr))
{
head = newArray;
array = head;
}
else
{
array->Next = newArray;
array = newArray;
}
array->Device = dptr;
array->Next = nullptr;
debug("Found %02x.%02x.%02x: %04x:%04x",
dev.Bus, dev.Device, dev.Function,
dev.Header->VendorID, dev.Header->DeviceID);
}
return head;
}
void InitializePCI(dev_t MajorID, void *_Header)
{
dbg_api("%d, %#lx", MajorID, _Header);
PCI::PCIDeviceHeader *Header = (PCI::PCIDeviceHeader *)_Header;
debug("Header Type: %d", Header->HeaderType);
switch (Header->HeaderType)
{
case 128:
warn("Unknown header type %d! Guessing PCI Header 0",
Header->HeaderType);
[[fallthrough]];
case 0: /* PCI Header 0 */
{
PCI::PCIHeader0 *hdr0 = (PCI::PCIHeader0 *)Header;
uint32_t BAR[6];
size_t BARsSize[6];
BAR[0] = hdr0->BAR0;
BAR[1] = hdr0->BAR1;
BAR[2] = hdr0->BAR2;
BAR[3] = hdr0->BAR3;
BAR[4] = hdr0->BAR4;
BAR[5] = hdr0->BAR5;
debug("Type: %d; IOBase: %#lx; MemoryBase: %#lx",
BAR[0] & 1, BAR[1] & (~3), BAR[0] & (~15));
/* BARs Size */
for (short i = 0; i < 6; i++)
{
if (BAR[i] == 0)
continue;
size_t size;
if ((BAR[i] & 1) == 0) /* Memory Base */
{
hdr0->BAR0 = 0xFFFFFFFF;
size = hdr0->BAR0;
hdr0->BAR0 = BAR[i];
BARsSize[i] = size & (~15);
BARsSize[i] = ~BARsSize[i] + 1;
BARsSize[i] = BARsSize[i] & 0xFFFFFFFF;
debug("BAR%d %#lx size: %d",
i, BAR[i], BARsSize[i]);
}
else if ((BAR[i] & 1) == 1) /* I/O Base */
{
hdr0->BAR1 = 0xFFFFFFFF;
size = hdr0->BAR1;
hdr0->BAR1 = BAR[i];
BARsSize[i] = size & (~3);
BARsSize[i] = ~BARsSize[i] + 1;
BARsSize[i] = BARsSize[i] & 0xFFFF;
debug("BAR%d %#lx size: %d",
i, BAR[i], BARsSize[i]);
}
}
Memory::Virtual vmm(KernelPageTable);
/* Mapping the BARs */
for (short i = 0; i < 6; i++)
{
if (BAR[i] == 0)
continue;
if ((BAR[i] & 1) == 0) /* Memory Base */
{
uintptr_t BARBase = BAR[i] & (~15);
size_t BARSize = BARsSize[i];
debug("Mapping BAR%d %#lx-%#lx",
i, BARBase, BARBase + BARSize);
if (BARSize == 0)
{
warn("BAR%d size is zero!", i);
BARSize++;
}
vmm.Map((void *)BARBase, (void *)BARBase,
BARSize, Memory::RW | Memory::PWT | Memory::PCD);
}
else if ((BAR[i] & 1) == 1) /* I/O Base */
{
uintptr_t BARBase = BAR[i] & (~3);
size_t BARSize = BARsSize[i];
debug("Mapping BAR%d %#x-%#x",
i, BARBase, BARBase + BARSize);
if (BARSize == 0)
{
warn("BAR%d size is zero!", i);
BARSize++;
}
vmm.Map((void *)BARBase, (void *)BARBase,
BARSize, Memory::RW | Memory::PWT | Memory::PCD);
}
}
break;
}
case 1: /* PCI Header 1 (PCI-to-PCI Bridge) */
{
fixme("PCI Header 1 (PCI-to-PCI Bridge) not implemented yet");
break;
}
case 2: /* PCI Header 2 (PCI-to-CardBus Bridge) */
{
fixme("PCI Header 2 (PCI-to-CardBus Bridge) not implemented yet");
break;
}
default:
{
error("Unknown header type %d", Header->HeaderType);
break;
}
}
Header->Command |= PCI_COMMAND_MASTER |
PCI_COMMAND_IO |
PCI_COMMAND_MEMORY;
Header->Command &= ~PCI_COMMAND_INTX_DISABLE;
}
uint32_t GetBAR(dev_t MajorID, uint8_t i, void *_Header)
{
dbg_api("%d, %d, %#lx", MajorID, i, _Header);
PCI::PCIDeviceHeader *Header = (PCI::PCIDeviceHeader *)_Header;
switch (Header->HeaderType)
{
case 128:
warn("Unknown header type %d! Guessing PCI Header 0",
Header->HeaderType);
[[fallthrough]];
case 0: /* PCI Header 0 */
{
PCI::PCIHeader0 *hdr0 =
(PCI::PCIHeader0 *)Header;
switch (i)
{
case 0:
return hdr0->BAR0;
case 1:
return hdr0->BAR1;
case 2:
return hdr0->BAR2;
case 3:
return hdr0->BAR3;
case 4:
return hdr0->BAR4;
case 5:
return hdr0->BAR5;
default:
assert(!"Invalid BAR index");
}
}
case 1: /* PCI Header 1 (PCI-to-PCI Bridge) */
{
PCI::PCIHeader1 *hdr1 =
(PCI::PCIHeader1 *)Header;
switch (i)
{
case 0:
return hdr1->BAR0;
case 1:
return hdr1->BAR1;
default:
assert(!"Invalid BAR index");
}
}
case 2: /* PCI Header 2 (PCI-to-CardBus Bridge) */
{
assert(!"PCI-to-CardBus Bridge not supported");
}
default:
assert(!"Invalid PCI header type");
}
}
/* --------- */
void *api__memcpy(dev_t MajorID, void *Destination, const void *Source, size_t Length)
{
dbg_api("%d, %#lx, %#lx, %d", MajorID, Destination, Source, Length);
return memcpy(Destination, Source, Length);
}
void *api__memset(dev_t MajorID, void *Destination, int Value, size_t Length)
{
dbg_api("%d, %#lx, %d, %d", MajorID, Destination, Value, Length);
return memset(Destination, Value, Length);
}
void *api__memmove(dev_t MajorID, void *Destination, const void *Source, size_t Length)
{
dbg_api("%d, %#lx, %#lx, %d", MajorID, Destination, Source, Length);
return memmove(Destination, Source, Length);
}
int api__memcmp(dev_t MajorID, const void *Left, const void *Right, size_t Length)
{
dbg_api("%d, %#lx, %#lx, %d", MajorID, Left, Right, Length);
return memcmp(Left, Right, Length);
}
size_t api__strlen(dev_t MajorID, const char *String)
{
dbg_api("%d, %s", MajorID, String);
return strlen(String);
}
char *api__strcpy(dev_t MajorID, char *Destination, const char *Source)
{
dbg_api("%d, %#lx, %s", MajorID, Destination, Source);
return strcpy(Destination, Source);
}
char *api__strcat(dev_t MajorID, char *Destination, const char *Source)
{
dbg_api("%d, %#lx, %s", MajorID, Destination, Source);
return strcat(Destination, Source);
}
int api__strcmp(dev_t MajorID, const char *Left, const char *Right)
{
dbg_api("%d, %s, %s", MajorID, Left, Right);
return strcmp(Left, Right);
}
int api__strncmp(dev_t MajorID, const char *Left, const char *Right, size_t Length)
{
dbg_api("%d, %s, %s, %d", MajorID, Left, Right, Length);
return strncmp(Left, Right, Length);
}
char *api__strchr(dev_t MajorID, const char *String, int Character)
{
dbg_api("%d, %s, %d", MajorID, String, Character);
return strchr(String, Character);
}
char *api__strrchr(dev_t MajorID, const char *String, int Character)
{
dbg_api("%d, %s, %d", MajorID, String, Character);
stub;
return nullptr;
// return strrchr(String, Character);
}
char *api__strstr(dev_t MajorID, const char *Haystack, const char *Needle)
{
dbg_api("%d, %s, %s", MajorID, Haystack, Needle);
return strstr(Haystack, Needle);
}
/* --------- */
void PopulateDriverAPI(void *API)
{
__driverAPI *api = (__driverAPI *)API;
api->RegisterFunction = RegisterFunction;
api->GetDriverInfo = GetDriverInfo;
api->RegisterInterruptHandler = RegisterInterruptHandler;
api->OverrideInterruptHandler = OverrideInterruptHandler;
api->UnregisterInterruptHandler = UnregisterInterruptHandler;
api->UnregisterAllInterruptHandlers = UnregisterAllInterruptHandlers;
api->RegisterInputDevice = RegisterInputDevice;
api->UnregisterInputDevice = UnregisterInputDevice;
api->ReportKeyboardEvent = ReportKeyboardEvent;
api->ReportRelativeMouseEvent = ReportRelativeMouseEvent;
api->ReportAbsoluteMouseEvent = ReportAbsoluteMouseEvent;
api->RegisterBlockDevice = RegisterBlockDevice;
api->UnregisterBlockDevice = UnregisterBlockDevice;
api->RegisterAudioDevice = RegisterAudioDevice;
api->UnregisterAudioDevice = UnregisterAudioDevice;
api->RegisterNetDevice = RegisterNetDevice;
api->UnregisterNetDevice = UnregisterNetDevice;
api->ReportNetworkPacket = ReportNetworkPacket;
api->KPrint = d_KPrint;
api->KernelLog = KernelLog;
api->RequestPages = RequestPages;
api->FreePages = FreePages;
api->AppendMapFlag = AppendMapFlag;
api->RemoveMapFlag = RemoveMapFlag;
api->MapPages = MapPages;
api->UnmapPages = UnmapPages;
api->CreateKernelProcess = CreateKernelProcess;
api->CreateKernelThread = CreateKernelThread;
api->KillProcess = KillProcess;
api->KillThread = KillThread;
api->Yield = Yield;
api->Sleep = Sleep;
api->GetPCIDevices = GetPCIDevices;
api->InitializePCI = InitializePCI;
api->GetBAR = GetBAR;
api->memcpy = api__memcpy;
api->memset = api__memset;
api->memmove = api__memmove;
api->memcmp = api__memcmp;
api->strlen = api__strlen;
api->strcpy = api__strcpy;
api->strcat = api__strcat;
api->strcmp = api__strcmp;
api->strncmp = api__strncmp;
api->strchr = api__strchr;
api->strrchr = api__strrchr;
api->strstr = api__strstr;
}
}

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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 <driver.hpp>
#include <memory.hpp>
#include <ints.hpp>
#include <task.hpp>
#include <printf.h>
#include <exec.hpp>
#include <cwalk.h>
#include <md5.h>
#include "../../../kernel.h"
#include "../../../driver.h"
using namespace vfs;
namespace Driver
{
int MasterDeviceFile::open(int Flags, mode_t Mode)
{
switch (this->DeviceType)
{
default:
if (this->SlavesMap.empty())
return -ENOSYS;
Slaves slave = this->SlavesMap.begin()->second;
return slave->begin()->second->open(Flags, Mode);
}
}
int MasterDeviceFile::close()
{
switch (this->DeviceType)
{
default:
if (this->SlavesMap.empty())
return -ENOSYS;
Slaves slave = this->SlavesMap.begin()->second;
return slave->begin()->second->close();
}
}
size_t MasterDeviceFile::read(uint8_t *Buffer,
size_t Size,
off_t Offset)
{
switch (this->DeviceType)
{
case ddt_Keyboard:
{
while (KeyQueue.empty())
TaskManager->Yield();
/* Request scancode */
if (Size == 2 && Buffer[1] == 0x00)
{
if (RawKeyQueue.empty())
return 0;
Buffer[0] = RawKeyQueue.front();
RawKeyQueue.pop_front();
return 1;
}
Buffer[0] = KeyQueue.front();
KeyQueue.pop_front();
return 1;
}
default:
if (this->SlavesMap.empty())
return 0;
Slaves slave = this->SlavesMap.begin()->second;
return slave->begin()->second->read(Buffer, Size, Offset);
}
}
size_t MasterDeviceFile::write(uint8_t *Buffer,
size_t Size,
off_t Offset)
{
switch (this->DeviceType)
{
default:
if (this->SlavesMap.empty())
return 0;
Slaves slave = this->SlavesMap.begin()->second;
return slave->begin()->second->write(Buffer, Size, Offset);
}
}
int MasterDeviceFile::ioctl(unsigned long Request,
void *Argp)
{
switch (this->DeviceType)
{
default:
if (this->SlavesMap.empty())
return -ENOSYS;
Slaves slave = this->SlavesMap.begin()->second;
return slave->begin()->second->ioctl(Request, Argp);
}
}
void MasterDeviceFile::ClearBuffers()
{
this->RawKeyQueue.clear();
this->KeyQueue.clear();
/* ... */
foreach (auto &sm in this->SlavesMap)
{
Slaves slave = sm.second;
foreach (auto &sdf in *slave)
sdf.second->ClearBuffers();
}
}
int MasterDeviceFile::ReportKeyEvent(maj_t ID, min_t MinorID, uint8_t ScanCode)
{
debug("New key event: %02x", ScanCode);
if (this->SlavesMap.find(ID) == this->SlavesMap.end())
return -EINVAL;
std::unordered_map<min_t, SlaveDeviceFile *> *slave = this->SlavesMap[ID];
if ((*slave).find(MinorID) == (*slave).end())
return -EINVAL;
/* We are master, keep a copy of the scancode and
converted key */
if (RawKeyQueue.size() > 16)
RawKeyQueue.pop_front();
RawKeyQueue.push_back(ScanCode);
if (KeyQueue.size() > 16)
KeyQueue.pop_front();
switch (ScanCode & ~KEY_PRESSED)
{
case KEY_LEFT_SHIFT:
case KEY_RIGHT_SHIFT:
{
if (ScanCode & KEY_PRESSED)
UpperCase = true;
else
UpperCase = false;
break;
}
case KEY_CAPS_LOCK:
{
if (ScanCode & KEY_PRESSED)
CapsLock = !CapsLock;
break;
}
default:
break;
}
KeyQueue.push_back(GetScanCode(ScanCode, UpperCase || CapsLock));
SlaveDeviceFile *sdf = (*slave)[MinorID];
return sdf->ReportKeyEvent(ScanCode);
}
int MasterDeviceFile::ReportMouseEvent(maj_t ID, min_t MinorID,
bool LeftButton, bool RightButton, bool MiddleButton,
bool Button4, bool Button5, bool Button6, bool Button7, bool Button8,
uintptr_t X, uintptr_t Y, int8_t Z, bool Relative)
{
return -ENOSYS;
}
int MasterDeviceFile::ReportNetworkPacket(maj_t ID, min_t MinorID, void *Buffer, size_t Size)
{
/* TODO: Buffer must be allocated by the kernel */
return -ENOSYS;
}
int MasterDeviceFile::NewBlock(maj_t ID, min_t MinorID, drvOpen_t Open, drvClose_t Close,
drvRead_t Read, drvWrite_t Write, drvIoctl_t Ioctl)
{
assert(this->SlavesMap.find(ID) != this->SlavesMap.end());
Slaves slave = this->SlavesMap[ID];
assert((*slave).find(MinorID) != (*slave).end());
SlaveDeviceFile *sdf = (*slave)[MinorID];
sdf->Open = Open;
sdf->Close = Close;
sdf->Read = Read;
sdf->Write = Write;
sdf->Ioctl = Ioctl;
return 0;
}
int MasterDeviceFile::NewAudio(maj_t ID, min_t MinorID, drvOpen_t Open, drvClose_t Close,
drvRead_t Read, drvWrite_t Write, drvIoctl_t Ioctl)
{
assert(this->SlavesMap.find(ID) != this->SlavesMap.end());
Slaves slave = this->SlavesMap[ID];
assert((*slave).find(MinorID) != (*slave).end());
SlaveDeviceFile *sdf = (*slave)[MinorID];
sdf->Open = Open;
sdf->Close = Close;
sdf->Read = Read;
sdf->Write = Write;
sdf->Ioctl = Ioctl;
return 0;
}
int MasterDeviceFile::NewNet(maj_t ID, min_t MinorID, drvOpen_t Open, drvClose_t Close,
drvRead_t Read, drvWrite_t Write, drvIoctl_t Ioctl)
{
assert(this->SlavesMap.find(ID) != this->SlavesMap.end());
Slaves slave = this->SlavesMap[ID];
assert((*slave).find(MinorID) != (*slave).end());
SlaveDeviceFile *sdf = (*slave)[MinorID];
sdf->Open = Open;
sdf->Close = Close;
sdf->Read = Read;
sdf->Write = Write;
sdf->Ioctl = Ioctl;
return 0;
}
dev_t MasterDeviceFile::Register(maj_t ID)
{
debug("Registering slave device %d", ID);
Slaves slave;
if (this->SlavesMap.find(ID) != this->SlavesMap.end())
slave = this->SlavesMap[ID];
else
slave = new std::unordered_map<min_t, SlaveDeviceFile *>();
char name[24];
sprintf(name, "%s%ld", this->SlaveName, this->SlaveIDCounter);
SlaveDeviceFile *sdf = new SlaveDeviceFile(name,
this->SlaveParent,
this->DeviceType,
this->Type);
sdf->DeviceMajor = ID;
sdf->DeviceMinor = this->SlaveIDCounter;
(*slave)[this->SlaveIDCounter] = sdf;
this->SlavesMap[ID] = slave;
return this->SlaveIDCounter++;
}
int MasterDeviceFile::Unregister(maj_t ID, min_t MinorID)
{
debug("Unregistering slave device %d:%d", ID, MinorID);
if (this->SlavesMap.find(ID) == this->SlavesMap.end())
return -EINVAL;
std::unordered_map<min_t, SlaveDeviceFile *> *slave = this->SlavesMap[ID];
if ((*slave).find(MinorID) == (*slave).end())
return -EINVAL;
SlaveDeviceFile *sdf = (*slave)[MinorID];
delete sdf;
slave->erase(MinorID);
if (slave->empty())
{
delete slave;
this->SlavesMap.erase(ID);
}
return 0;
}
MasterDeviceFile::MasterDeviceFile(const char *MasterName,
const char *_SlaveName,
Node *Parent,
int Type)
: Node(Parent, MasterName, NodeType::FILE)
{
strncpy(this->SlaveName, _SlaveName, sizeof(this->Name));
this->DeviceType = Type;
this->SlaveParent = Parent;
switch (Type)
{
case ddt_Keyboard:
case ddt_Mouse:
case ddt_Joystick:
case ddt_Gamepad:
case ddt_Touchpad:
case ddt_Touchscreen:
this->Type = NodeType::CHARDEVICE;
break;
case ddt_SATA:
case ddt_ATA:
case ddt_NVMe:
this->Type = NodeType::BLOCKDEVICE;
break;
default:
break;
}
}
MasterDeviceFile::~MasterDeviceFile()
{
foreach (auto &sm in this->SlavesMap)
{
Slaves slave = sm.second;
foreach (auto &sdf in *slave)
delete sdf.second;
delete slave;
}
this->SlavesMap.clear();
}
}

131
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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 <driver.hpp>
#include <memory.hpp>
#include <ints.hpp>
#include <task.hpp>
#include <printf.h>
#include <exec.hpp>
#include <cwalk.h>
#include <md5.h>
#include "../../../kernel.h"
#include "../../../driver.h"
using namespace vfs;
namespace Driver
{
int SlaveDeviceFile::open(int Flags, mode_t Mode)
{
switch (this->DeviceType)
{
default:
if (this->Open)
return this->Open(this->DeviceMajor, this->DeviceMinor,
Flags, Mode);
return -ENOSYS;
}
}
int SlaveDeviceFile::close()
{
switch (this->DeviceType)
{
default:
if (this->Close)
return this->Close(this->DeviceMajor, this->DeviceMinor);
return -ENOSYS;
}
}
size_t SlaveDeviceFile::read(uint8_t *Buffer,
size_t Size,
off_t Offset)
{
switch (this->DeviceType)
{
case ddt_Keyboard:
{
while (KeyQueue.empty())
TaskManager->Yield();
Buffer[0] = KeyQueue.front();
KeyQueue.pop_front();
return 1;
}
default:
if (this->Read)
return this->Read(this->DeviceMajor, this->DeviceMinor,
Buffer, Size, Offset);
return 0;
}
}
size_t SlaveDeviceFile::write(uint8_t *Buffer,
size_t Size,
off_t Offset)
{
switch (this->DeviceType)
{
default:
if (this->Write)
return this->Write(this->DeviceMajor, this->DeviceMinor,
Buffer, Size, Offset);
return 0;
}
}
int SlaveDeviceFile::ioctl(unsigned long Request,
void *Argp)
{
switch (this->DeviceType)
{
default:
if (this->Ioctl)
return this->Ioctl(this->DeviceMajor, this->DeviceMinor,
Request, Argp);
return -ENOSYS;
}
}
void SlaveDeviceFile::ClearBuffers()
{
KeyQueue.clear();
/* ... */
}
int SlaveDeviceFile::ReportKeyEvent(uint8_t ScanCode)
{
if (KeyQueue.size() > 16)
KeyQueue.pop_front();
KeyQueue.push_back(ScanCode);
return 0;
}
SlaveDeviceFile::SlaveDeviceFile(const char *Name, vfs::Node *Parent, int Type, vfs::NodeType NType)
: Node(Parent, Name, NType)
{
this->DeviceType = Type;
}
SlaveDeviceFile::~SlaveDeviceFile()
{
}
}

582
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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 <driver.hpp>
#include <memory.hpp>
#include <ints.hpp>
#include <task.hpp>
#include <printf.h>
#include <exec.hpp>
#include <cwalk.h>
#include <md5.h>
#include "../../kernel.h"
#include "../../driver.h"
using namespace vfs;
namespace Driver
{
void Manager::LoadAllDrivers()
{
foreach (auto &var in Drivers)
{
DriverObject *Drv = &var.second;
size_t dapiPgs = TO_PAGES(sizeof(__driverAPI));
__driverAPI *dApi = (__driverAPI *)Drv->vma->RequestPages(dapiPgs);
debug("Driver API at %#lx-%#lx", dApi, dApi + sizeof(__driverAPI));
fixme("api version");
dApi->APIVersion.Major = 0;
dApi->APIVersion.Minor = 0;
dApi->APIVersion.Patch = 0;
dApi->MajorID = var.first;
dApi->Base = Drv->BaseAddress;
PopulateDriverAPI(dApi);
debug("Calling driver %s at %#lx", Drv->Path, Drv->EntryPoint);
int (*DrvInit)(__driverAPI *) = (int (*)(__driverAPI *))Drv->EntryPoint;
Drv->ErrorCode = DrvInit(dApi);
if (Drv->ErrorCode < 0)
{
KPrint("FATAL: _start() failed for %s: %s",
Drv->Name, strerror(Drv->ErrorCode));
error("Failed to load driver %s: %s",
Drv->Path, strerror(Drv->ErrorCode));
Drv->vma->FreeAllPages();
continue;
}
KPrint("Loading driver %s", Drv->Name);
debug("Calling Probe()=%#lx on driver %s",
Drv->Probe, Drv->Path);
Drv->ErrorCode = Drv->Probe();
if (Drv->ErrorCode < 0)
{
KPrint("Probe() failed for %s: %s",
Drv->Name, strerror(Drv->ErrorCode));
error("Failed to probe driver %s: %s",
Drv->Path, strerror(Drv->ErrorCode));
Drv->vma->FreeAllPages();
continue;
}
debug("Calling driver Entry()=%#lx function on driver %s",
Drv->Entry, Drv->Path);
Drv->ErrorCode = Drv->Entry();
if (Drv->ErrorCode < 0)
{
KPrint("Entry() failed for %s: %s",
Drv->Name, strerror(Drv->ErrorCode));
error("Failed to initialize driver %s: %s",
Drv->Path, strerror(Drv->ErrorCode));
Drv->vma->FreeAllPages();
continue;
}
debug("Loaded driver %s", Drv->Path);
Drv->Initialized = true;
}
InputMouseDev->ClearBuffers();
InputKeyboardDev->ClearBuffers();
BlockSATADev->ClearBuffers();
BlockHDDev->ClearBuffers();
BlockNVMeDev->ClearBuffers();
AudioDev->ClearBuffers();
NetDev->ClearBuffers();
/* ... */
}
void Manager::UnloadAllDrivers()
{
foreach (auto &var in Drivers)
{
DriverObject *Drv = &var.second;
if (!Drv->Initialized)
continue;
debug("Unloading driver %s", Drv->Name);
int err = Drv->Final();
if (err < 0)
{
warn("Failed to unload driver %s: %s",
Drv->Name, strerror(err));
}
if (!Drv->InterruptHandlers->empty())
{
foreach (auto &rInt in * Drv->InterruptHandlers)
{
Interrupts::RemoveHandler((void (*)(CPU::TrapFrame *))rInt.second);
}
Drv->InterruptHandlers->clear();
}
delete Drv->vma, Drv->vma = nullptr;
delete Drv->InterruptHandlers, Drv->InterruptHandlers = nullptr;
}
Drivers.clear();
}
void Manager::Panic()
{
Memory::Virtual vmm;
foreach (auto Driver in Drivers)
{
if (!Driver.second.Initialized)
continue;
trace("Panic on driver %s", Driver.second.Name);
debug("%#lx", Driver.second.Panic);
/* Crash while probing? */
if (Driver.second.Panic && vmm.Check((void *)Driver.second.Panic))
Driver.second.Panic();
else
error("No panic function for driver %s",
Driver.second.Name);
}
}
int Manager::LoadDriverFile(uintptr_t &EntryPoint,
uintptr_t &BaseAddress,
Memory::VirtualMemoryArea *dVma,
RefNode *rDrv)
{
Elf64_Ehdr ELFHeader;
rDrv->seek(0, SEEK_SET);
rDrv->read((uint8_t *)&ELFHeader, sizeof(Elf64_Ehdr));
if (ELFHeader.e_type != ET_DYN)
{
error("Driver %s is not a shared object", rDrv->node->FullPath);
return -ENOEXEC;
}
trace("Loading driver %s in memory", rDrv->node->Name);
BaseAddress = 0;
{
Elf64_Phdr ProgramBreakHeader{};
Elf64_Phdr ProgramHeader;
size_t SegmentsSize = 0;
for (Elf64_Half i = 0; i < ELFHeader.e_phnum; i++)
{
rDrv->seek(ELFHeader.e_phoff + (i * sizeof(Elf64_Phdr)), SEEK_SET);
rDrv->read((uint8_t *)&ProgramHeader, sizeof(Elf64_Phdr));
if (ProgramHeader.p_type == PT_LOAD ||
ProgramHeader.p_type == PT_DYNAMIC)
{
if (SegmentsSize < ProgramHeader.p_vaddr + ProgramHeader.p_memsz)
{
SegmentsSize = ProgramHeader.p_vaddr + ProgramHeader.p_memsz;
ProgramBreakHeader = ProgramHeader;
}
}
}
debug("SegmentsSize: %#lx", SegmentsSize);
/* TODO: Check if this is correct and/or it needs more
complex calculations & allocations */
void *SegmentsAddress = dVma->RequestPages(TO_PAGES(SegmentsSize) + 1, true);
BaseAddress = (uintptr_t)SegmentsAddress;
debug("BaseAddress: %#lx, End: %#lx (%#lx)", BaseAddress,
BaseAddress + FROM_PAGES(TO_PAGES(SegmentsSize)),
SegmentsSize);
for (Elf64_Half i = 0; i < ELFHeader.e_phnum; i++)
{
rDrv->seek(ELFHeader.e_phoff + (i * sizeof(Elf64_Phdr)), SEEK_SET);
rDrv->read((uint8_t *)&ProgramHeader, sizeof(Elf64_Phdr));
switch (ProgramHeader.p_type)
{
case PT_LOAD:
{
/* Because this is ET_DYN, we can load the segments
anywhere we want. */
uintptr_t SegmentDestination = BaseAddress + ProgramHeader.p_vaddr;
if (ProgramHeader.p_memsz == 0)
continue;
debug("Copying PT_LOAD to %#lx-%#lx (%ld file bytes, %ld mem bytes)",
SegmentDestination, SegmentDestination + ProgramHeader.p_memsz,
ProgramHeader.p_filesz, ProgramHeader.p_memsz);
if (ProgramHeader.p_filesz > 0)
{
rDrv->seek(ProgramHeader.p_offset, SEEK_SET);
rDrv->read((uint8_t *)SegmentDestination, ProgramHeader.p_filesz);
}
if (ProgramHeader.p_memsz - ProgramHeader.p_filesz > 0)
{
void *zAddr = (void *)(SegmentDestination + ProgramHeader.p_filesz);
memset(zAddr, 0, ProgramHeader.p_memsz - ProgramHeader.p_filesz);
}
break;
}
case PT_DYNAMIC:
{
/* PT_DYNAMIC contains the dynamic linking information for the
executable or shared library. */
uintptr_t DynamicSegmentDestination = BaseAddress + ProgramHeader.p_vaddr;
if (ProgramHeader.p_memsz == 0)
continue;
debug("Copying PT_DYNAMIC to %#lx-%#lx (%ld file bytes, %ld mem bytes)",
DynamicSegmentDestination, DynamicSegmentDestination + ProgramHeader.p_memsz,
ProgramHeader.p_filesz, ProgramHeader.p_memsz);
if (ProgramHeader.p_filesz > 0)
{
rDrv->seek(ProgramHeader.p_offset, SEEK_SET);
rDrv->read((uint8_t *)DynamicSegmentDestination, ProgramHeader.p_filesz);
}
if (ProgramHeader.p_memsz - ProgramHeader.p_filesz > 0)
{
void *zAddr = (void *)(DynamicSegmentDestination + ProgramHeader.p_filesz);
memset(zAddr, 0, ProgramHeader.p_memsz - ProgramHeader.p_filesz);
}
break;
}
default:
{
fixme("Unhandled program header type: %#lx",
ProgramHeader.p_type);
break;
}
}
}
}
Elf64_Phdr ProgramHeader;
for (Elf64_Half i = 0; i < ELFHeader.e_phnum; i++)
{
rDrv->seek(ELFHeader.e_phoff + (i * sizeof(Elf64_Phdr)), SEEK_SET);
rDrv->read((uint8_t *)&ProgramHeader, sizeof(Elf64_Phdr));
if (ProgramHeader.p_type == PT_DYNAMIC)
{
Elf64_Dyn *Dynamic = (Elf64_Dyn *)(BaseAddress + ProgramHeader.p_vaddr);
Elf64_Dyn *RelaSize = nullptr;
Elf64_Dyn *PltRelSize = nullptr;
while (Dynamic->d_tag != DT_NULL)
{
switch (Dynamic->d_tag)
{
case DT_RELASZ:
RelaSize = Dynamic;
debug("RELA Size: %d", RelaSize->d_un.d_val / sizeof(Elf64_Rela));
break;
case DT_PLTRELSZ:
PltRelSize = Dynamic;
debug("PLTRELSZ: %d", PltRelSize->d_un.d_val / sizeof(Elf64_Rela));
break;
default:
break;
}
Dynamic++;
}
Dynamic = (Elf64_Dyn *)(BaseAddress + ProgramHeader.p_vaddr);
while (Dynamic->d_tag != DT_NULL)
{
switch (Dynamic->d_tag)
{
case DT_RELA: /* .rela.dyn */
{
if (!RelaSize)
{
error("DT_RELASZ is not set");
break;
}
Elf64_Rela *Rela = (Elf64_Rela *)(BaseAddress + Dynamic->d_un.d_ptr);
for (size_t i = 0; i < (RelaSize->d_un.d_val / sizeof(Elf64_Rela)); i++)
{
Elf64_Rela *r = &Rela[i];
uintptr_t *RelocationAddress = (uintptr_t *)(BaseAddress + r->r_offset);
uintptr_t RelocationTarget = 0;
switch (ELF64_R_TYPE(r->r_info))
{
case R_X86_64_GLOB_DAT:
case R_X86_64_JUMP_SLOT:
{
RelocationTarget = BaseAddress;
break;
}
case R_X86_64_RELATIVE:
case R_X86_64_64:
{
RelocationTarget = BaseAddress + r->r_addend;
break;
}
default:
{
fixme("Unhandled relocation type: %#lx",
ELF64_R_TYPE(r->r_info));
break;
}
}
*RelocationAddress = RelocationTarget;
debug("Relocated %#lx to %#lx",
r->r_offset, *RelocationAddress);
}
break;
}
case DT_PLTREL:
{
if (Dynamic->d_un.d_val != DT_RELA)
error("DT_PLTREL is not DT_RELA");
break;
}
case DT_JMPREL: /* .rela.plt */
{
if (!PltRelSize)
{
error("DT_PLTRELSZ is not set");
break;
}
int fd = fopen(rDrv->node->FullPath, "r");
std::vector<Elf64_Dyn> SymTab = Execute::ELFGetDynamicTag_x86_64(fd, DT_SYMTAB);
std::vector<Elf64_Dyn> StrTab = Execute::ELFGetDynamicTag_x86_64(fd, DT_STRTAB);
Elf64_Sym *_SymTab = (Elf64_Sym *)((uintptr_t)BaseAddress + SymTab[0].d_un.d_ptr);
char *DynStr = (char *)((uintptr_t)BaseAddress + StrTab[0].d_un.d_ptr);
UNUSED(DynStr);
fclose(fd);
Elf64_Rela *Rela = (Elf64_Rela *)(BaseAddress + Dynamic->d_un.d_ptr);
for (size_t i = 0; i < (PltRelSize->d_un.d_val / sizeof(Elf64_Rela)); i++)
{
Elf64_Rela *r = &Rela[i];
uintptr_t *RelocationAddress = (uintptr_t *)(BaseAddress + r->r_offset);
uintptr_t RelocationTarget = 0;
switch (ELF64_R_TYPE(r->r_info))
{
case R_X86_64_JUMP_SLOT:
{
Elf64_Xword SymIndex = ELF64_R_SYM(r->r_info);
Elf64_Sym *Sym = _SymTab + SymIndex;
#ifdef DEBUG
const char *SymbolName = DynStr + Sym->st_name;
debug("Symbol %s at %#lx", SymbolName, Sym->st_value);
#endif
RelocationTarget = BaseAddress + Sym->st_value;
break;
}
default:
{
fixme("Unhandled relocation type: %#lx",
ELF64_R_TYPE(r->r_info));
break;
}
}
*RelocationAddress = RelocationTarget;
debug("Relocated %#lx to %#lx",
r->r_offset, *RelocationAddress);
}
break;
}
case DT_SYMTAB:
{
fixme("DT_SYMTAB");
break;
int fd = fopen(rDrv->node->FullPath, "r");
std::vector<Elf64_Dyn> SymTab = Execute::ELFGetDynamicTag_x86_64(fd, DT_SYMTAB);
std::vector<Elf64_Dyn> StrTab = Execute::ELFGetDynamicTag_x86_64(fd, DT_STRTAB);
Elf64_Sym *_SymTab = (Elf64_Sym *)((uintptr_t)BaseAddress + SymTab[0].d_un.d_ptr);
char *DynStr = (char *)((uintptr_t)BaseAddress + StrTab[0].d_un.d_ptr);
UNUSED(DynStr);
fclose(fd);
size_t symtabEntrySize = 0;
Elf64_Dyn *entrySizeDyn = Dynamic;
while (entrySizeDyn->d_tag != DT_NULL)
{
if (entrySizeDyn->d_tag == DT_SYMENT)
{
symtabEntrySize = entrySizeDyn->d_un.d_val;
break;
}
entrySizeDyn++;
}
if (symtabEntrySize == 0)
{
fixme("No information about symbol entry size");
break;
}
size_t numSymbols = Dynamic->d_un.d_val / symtabEntrySize;
for (size_t i = 0; i < numSymbols; i++)
{
Elf64_Sym *s = &_SymTab[i];
if (s->st_name == 0)
continue;
#ifdef DEBUG
const char *SymbolName = (const char *)(DynStr + s->st_name);
debug("%d: Symbol %s at %#lx", i, SymbolName, s->st_value);
#endif
/** TODO: search for symbols and link */
/** good use but it will not work only
* if we specify to default visibility but
* this will create more issues :/ */
// if (strcmp(SymbolName, "DriverProbe") == 0)
// {
// Drivers[MajorIDCounter].Probe = (int (*)())(BaseAddress + s->st_value);
// debug("Found probe function at %#lx", Drivers[MajorIDCounter].Probe);
// }
}
break;
}
default:
{
fixme("Unhandled dynamic tag: %#lx",
Dynamic->d_tag);
break;
}
}
Dynamic++;
}
}
}
EntryPoint = ELFHeader.e_entry;
EntryPoint += BaseAddress;
debug("Driver %s has entry point %#lx and base %#lx",
rDrv->node->FullPath, EntryPoint, BaseAddress);
/* FIXME: Do not add to the KernelSymbolTable! */
// Memory::SmartHeap sh(rDrv->Size);
// rDrv->seek(0, SEEK_SET);
// rDrv->read((uint8_t *)sh.Get(), rDrv->Size);
// KernelSymbolTable->AppendSymbols((uintptr_t)sh.Get(), BaseAddress);
return 0;
}
Manager::Manager()
{
debug("Initializing driver manager");
const char *DriverDirectory = Config.DriverDirectory;
RefNode *rn = fs->Open(DriverDirectory);
if (!rn)
{
error("Failed to open driver directory %s", DriverDirectory);
KPrint("Failed to open driver directory %s", DriverDirectory);
return;
}
foreach (auto drvNode in rn->node->Children)
{
if (drvNode->Type != vfs::FILE)
continue;
if (Execute::GetBinaryType(drvNode->FullPath) != Execute::BinTypeELF)
{
error("Driver %s is not an ELF binary", drvNode->FullPath);
continue;
}
RefNode *rDrv = drvNode->CreateReference();
Memory::VirtualMemoryArea *dVma =
new Memory::VirtualMemoryArea(thisProcess->PageTable);
uintptr_t EntryPoint, BaseAddress;
int err = this->LoadDriverFile(EntryPoint, BaseAddress, dVma, rDrv);
debug("err = %d (%s)", err, strerror(err));
if (err != 0)
{
error("Failed to load driver %s: %s",
drvNode->FullPath, strerror(err));
delete rDrv;
delete dVma;
continue;
}
delete rDrv;
Drivers[MajorIDCounter++] = {
.BaseAddress = BaseAddress,
.EntryPoint = EntryPoint,
.vma = dVma,
.Path = drvNode->FullPath,
.InterruptHandlers = new std::unordered_map<uint8_t, void *>};
dev_t countr = MajorIDCounter - 1;
const char *drvName;
size_t drvNameLen;
cwk_path_get_basename(drvNode->FullPath, &drvName, &drvNameLen);
strncpy(Drivers[countr].Name, drvName, sizeof(Drivers[countr].Name));
}
delete rn;
InputMouseDev = new MasterDeviceFile("mice", "mouse", DevFS, ddt_Mouse);
InputKeyboardDev = new MasterDeviceFile("key", "kbd", DevFS, ddt_Keyboard);
BlockSATADev = new MasterDeviceFile("sd", "sd", DevFS, ddt_SATA);
BlockHDDev = new MasterDeviceFile("hd", "hd", DevFS, ddt_ATA);
BlockNVMeDev = new MasterDeviceFile("nvme", "nvme", DevFS, ddt_NVMe);
AudioDev = new MasterDeviceFile("audio", "snd", DevFS, ddt_Audio);
NetDev = new MasterDeviceFile("network", "net", DevFS, ddt_Network);
}
Manager::~Manager()
{
debug("Unloading drivers");
UnloadAllDrivers();
delete InputMouseDev;
delete InputKeyboardDev;
}
}

369
core/driver/scancode.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 <driver.hpp>
#include "../../driver.h"
static char ScanCodeConversionTableLower[] = {
[KEY_1] = '1',
[KEY_2] = '2',
[KEY_3] = '3',
[KEY_4] = '4',
[KEY_5] = '5',
[KEY_6] = '6',
[KEY_7] = '7',
[KEY_8] = '8',
[KEY_9] = '9',
[KEY_0] = '0',
[KEY_Q] = 'q',
[KEY_W] = 'w',
[KEY_E] = 'e',
[KEY_R] = 'r',
[KEY_T] = 't',
[KEY_Y] = 'y',
[KEY_U] = 'u',
[KEY_I] = 'i',
[KEY_O] = 'o',
[KEY_P] = 'p',
[KEY_A] = 'a',
[KEY_S] = 's',
[KEY_D] = 'd',
[KEY_F] = 'f',
[KEY_G] = 'g',
[KEY_H] = 'h',
[KEY_J] = 'j',
[KEY_K] = 'k',
[KEY_L] = 'l',
[KEY_Z] = 'z',
[KEY_X] = 'x',
[KEY_C] = 'c',
[KEY_V] = 'v',
[KEY_B] = 'b',
[KEY_N] = 'n',
[KEY_M] = 'm',
[KEY_F1] = 0x00,
[KEY_F2] = 0x00,
[KEY_F3] = 0x00,
[KEY_F4] = 0x00,
[KEY_F5] = 0x00,
[KEY_F6] = 0x00,
[KEY_F7] = 0x00,
[KEY_F8] = 0x00,
[KEY_F9] = 0x00,
[KEY_F10] = 0x00,
[KEY_F11] = 0x00,
[KEY_F12] = 0x00,
[KEYPAD_7] = '7',
[KEYPAD_8] = '8',
[KEYPAD_9] = '9',
[KEYPAD_MINUS] = '-',
[KEYPAD_4] = '4',
[KEYPAD_5] = '5',
[KEYPAD_6] = '6',
[KEYPAD_PLUS] = '+',
[KEYPAD_1] = '1',
[KEYPAD_2] = '2',
[KEYPAD_3] = '3',
[KEYPAD_0] = '0',
[KEYPAD_PERIOD] = '.',
[KEYPAD_RETURN] = '\n',
[KEYPAD_ASTERISK] = '*',
[KEYPAD_SLASH] = '/',
[KEY_LEFT_CTRL] = 0x00,
[KEY_RIGHT_CTRL] = 0x00,
[KEY_LEFT_SHIFT] = 0x00,
[KEY_RIGHT_SHIFT] = 0x00,
[KEY_LEFT_ALT] = 0x00,
[KEY_RIGHT_ALT] = 0x00,
[KEY_ESCAPE] = '\e',
[KEY_MINUS] = '-',
[KEY_EQUAL] = '=',
[KEY_BACKSPACE] = '\b',
[KEY_TAB] = '\t',
[KEY_LEFT_BRACKET] = '[',
[KEY_RIGHT_BRACKET] = ']',
[KEY_RETURN] = '\n',
[KEY_SEMICOLON] = ';',
[KEY_APOSTROPHE] = '\'',
[KEY_BACK_TICK] = '`',
[KEY_BACKSLASH] = '\\',
[KEY_COMMA] = ',',
[KEY_PERIOD] = '.',
[KEY_SLASH] = '/',
[KEY_SPACE] = ' ',
[KEY_CAPS_LOCK] = 0x00,
[KEY_NUM_LOCK] = 0x00,
[KEY_SCROLL_LOCK] = 0x00,
[KEY_PRINT_SCREEN] = 0x00,
[KEY_HOME] = 0x00,
[KEY_UP_ARROW] = 0x00,
[KEY_LEFT_ARROW] = 0x00,
[KEY_RIGHT_ARROW] = 0x00,
[KEY_DOWN_ARROW] = 0x00,
[KEY_PAGE_UP] = 0x00,
[KEY_PAGE_DOWN] = 0x00,
[KEY_END] = 0x00,
[KEY_INSERT] = 0x00,
[KEY_DELETE] = 0x00,
[KEY_LEFT_GUI] = 0x00,
[KEY_RIGHT_GUI] = 0x00,
[KEY_APPS] = 0x00,
[KEY_MULTIMEDIA_PREV_TRACK] = 0x00,
[KEY_MULTIMEDIA_NEXT_TRACK] = 0x00,
[KEY_MULTIMEDIA_MUTE] = 0x00,
[KEY_MULTIMEDIA_CALCULATOR] = 0x00,
[KEY_MULTIMEDIA_PLAY] = 0x00,
[KEY_MULTIMEDIA_STOP] = 0x00,
[KEY_MULTIMEDIA_VOL_DOWN] = 0x00,
[KEY_MULTIMEDIA_VOL_UP] = 0x00,
[KEY_MULTIMEDIA_WWW_HOME] = 0x00,
[KEY_MULTIMEDIA_WWW_SEARCH] = 0x00,
[KEY_MULTIMEDIA_WWW_FAVORITES] = 0x00,
[KEY_MULTIMEDIA_WWW_REFRESH] = 0x00,
[KEY_MULTIMEDIA_WWW_STOP] = 0x00,
[KEY_MULTIMEDIA_WWW_FORWARD] = 0x00,
[KEY_MULTIMEDIA_WWW_BACK] = 0x00,
[KEY_MULTIMEDIA_MY_COMPUTER] = 0x00,
[KEY_MULTIMEDIA_EMAIL] = 0x00,
[KEY_MULTIMEDIA_MEDIA_SELECT] = 0x00,
[KEY_ACPI_POWER] = 0x00,
[KEY_ACPI_SLEEP] = 0x00,
[KEY_ACPI_WAKE] = 0x00};
static char ScanCodeConversionTableUpper[] = {
[KEY_1] = '!',
[KEY_2] = '@',
[KEY_3] = '#',
[KEY_4] = '$',
[KEY_5] = '%',
[KEY_6] = '^',
[KEY_7] = '&',
[KEY_8] = '*',
[KEY_9] = '(',
[KEY_0] = ')',
[KEY_Q] = 'Q',
[KEY_W] = 'W',
[KEY_E] = 'E',
[KEY_R] = 'R',
[KEY_T] = 'T',
[KEY_Y] = 'Y',
[KEY_U] = 'U',
[KEY_I] = 'I',
[KEY_O] = 'O',
[KEY_P] = 'P',
[KEY_A] = 'A',
[KEY_S] = 'S',
[KEY_D] = 'D',
[KEY_F] = 'F',
[KEY_G] = 'G',
[KEY_H] = 'H',
[KEY_J] = 'J',
[KEY_K] = 'K',
[KEY_L] = 'L',
[KEY_Z] = 'Z',
[KEY_X] = 'X',
[KEY_C] = 'C',
[KEY_V] = 'V',
[KEY_B] = 'B',
[KEY_N] = 'N',
[KEY_M] = 'M',
[KEY_F1] = 0x00,
[KEY_F2] = 0x00,
[KEY_F3] = 0x00,
[KEY_F4] = 0x00,
[KEY_F5] = 0x00,
[KEY_F6] = 0x00,
[KEY_F7] = 0x00,
[KEY_F8] = 0x00,
[KEY_F9] = 0x00,
[KEY_F10] = 0x00,
[KEY_F11] = 0x00,
[KEY_F12] = 0x00,
[KEYPAD_7] = '7',
[KEYPAD_8] = '8',
[KEYPAD_9] = '9',
[KEYPAD_MINUS] = '-',
[KEYPAD_4] = '4',
[KEYPAD_5] = '5',
[KEYPAD_6] = '6',
[KEYPAD_PLUS] = '+',
[KEYPAD_1] = '1',
[KEYPAD_2] = '2',
[KEYPAD_3] = '3',
[KEYPAD_0] = '0',
[KEYPAD_PERIOD] = '.',
[KEYPAD_RETURN] = '\n',
[KEYPAD_ASTERISK] = '*',
[KEYPAD_SLASH] = '/',
[KEY_LEFT_CTRL] = 0x00,
[KEY_RIGHT_CTRL] = 0x00,
[KEY_LEFT_SHIFT] = 0x00,
[KEY_RIGHT_SHIFT] = 0x00,
[KEY_LEFT_ALT] = 0x00,
[KEY_RIGHT_ALT] = 0x00,
[KEY_ESCAPE] = '\e',
[KEY_MINUS] = '_',
[KEY_EQUAL] = '+',
[KEY_BACKSPACE] = '\b',
[KEY_TAB] = '\t',
[KEY_LEFT_BRACKET] = '{',
[KEY_RIGHT_BRACKET] = '}',
[KEY_RETURN] = '\n',
[KEY_SEMICOLON] = ':',
[KEY_APOSTROPHE] = '\"',
[KEY_BACK_TICK] = '~',
[KEY_BACKSLASH] = '|',
[KEY_COMMA] = '<',
[KEY_PERIOD] = '>',
[KEY_SLASH] = '/',
[KEY_SPACE] = ' ',
[KEY_CAPS_LOCK] = 0x00,
[KEY_NUM_LOCK] = 0x00,
[KEY_SCROLL_LOCK] = 0x00,
[KEY_PRINT_SCREEN] = 0x00,
[KEY_HOME] = 0x00,
[KEY_UP_ARROW] = 0x00,
[KEY_LEFT_ARROW] = 0x00,
[KEY_RIGHT_ARROW] = 0x00,
[KEY_DOWN_ARROW] = 0x00,
[KEY_PAGE_UP] = 0x00,
[KEY_PAGE_DOWN] = 0x00,
[KEY_END] = 0x00,
[KEY_INSERT] = 0x00,
[KEY_DELETE] = 0x00,
[KEY_LEFT_GUI] = 0x00,
[KEY_RIGHT_GUI] = 0x00,
[KEY_APPS] = 0x00,
[KEY_MULTIMEDIA_PREV_TRACK] = 0x00,
[KEY_MULTIMEDIA_NEXT_TRACK] = 0x00,
[KEY_MULTIMEDIA_MUTE] = 0x00,
[KEY_MULTIMEDIA_CALCULATOR] = 0x00,
[KEY_MULTIMEDIA_PLAY] = 0x00,
[KEY_MULTIMEDIA_STOP] = 0x00,
[KEY_MULTIMEDIA_VOL_DOWN] = 0x00,
[KEY_MULTIMEDIA_VOL_UP] = 0x00,
[KEY_MULTIMEDIA_WWW_HOME] = 0x00,
[KEY_MULTIMEDIA_WWW_SEARCH] = 0x00,
[KEY_MULTIMEDIA_WWW_FAVORITES] = 0x00,
[KEY_MULTIMEDIA_WWW_REFRESH] = 0x00,
[KEY_MULTIMEDIA_WWW_STOP] = 0x00,
[KEY_MULTIMEDIA_WWW_FORWARD] = 0x00,
[KEY_MULTIMEDIA_WWW_BACK] = 0x00,
[KEY_MULTIMEDIA_MY_COMPUTER] = 0x00,
[KEY_MULTIMEDIA_EMAIL] = 0x00,
[KEY_MULTIMEDIA_MEDIA_SELECT] = 0x00,
[KEY_ACPI_POWER] = 0x00,
[KEY_ACPI_SLEEP] = 0x00,
[KEY_ACPI_WAKE] = 0x00};
#ifdef DEBUG
static const char *ScanCodeDebugNames[] = {
"KEY_1", "KEY_2", "KEY_3", "KEY_4", "KEY_5", "KEY_6", "KEY_7", "KEY_8",
"KEY_9", "KEY_0", "KEY_Q", "KEY_W", "KEY_E", "KEY_R", "KEY_T", "KEY_Y",
"KEY_U", "KEY_I", "KEY_O", "KEY_P", "KEY_A", "KEY_S", "KEY_D", "KEY_F",
"KEY_G", "KEY_H", "KEY_J", "KEY_K", "KEY_L", "KEY_Z", "KEY_X", "KEY_C",
"KEY_V", "KEY_B", "KEY_N", "KEY_M", "KEY_F1", "KEY_F2", "KEY_F3", "KEY_F4",
"KEY_F5", "KEY_F6", "KEY_F7", "KEY_F8", "KEY_F9", "KEY_F10", "KEY_F11",
"KEY_F12", "KEYPAD_7", "KEYPAD_8", "KEYPAD_9", "KEYPAD_MINUS", "KEYPAD_4",
"KEYPAD_5", "KEYPAD_6", "KEYPAD_PLUS", "KEYPAD_1", "KEYPAD_2", "KEYPAD_3",
"KEYPAD_0", "KEYPAD_PERIOD", "KEYPAD_RETURN", "KEYPAD_ASTERISK", "KEYPAD_SLASH",
"KEY_LEFT_CTRL", "KEY_RIGHT_CTRL", "KEY_LEFT_SHIFT", "KEY_RIGHT_SHIFT",
"KEY_LEFT_ALT", "KEY_RIGHT_ALT", "KEY_ESCAPE", "KEY_MINUS", "KEY_EQUAL",
"KEY_BACKSPACE", "KEY_TAB", "KEY_LEFT_BRACKET", "KEY_RIGHT_BRACKET",
"KEY_RETURN", "KEY_SEMICOLON", "KEY_APOSTROPHE", "KEY_BACK_TICK",
"KEY_BACKSLASH", "KEY_COMMA", "KEY_PERIOD", "KEY_SLASH", "KEY_SPACE",
"KEY_CAPS_LOCK", "KEY_NUM_LOCK", "KEY_SCROLL_LOCK", "KEY_PRINT_SCREEN",
"KEY_HOME", "KEY_UP_ARROW", "KEY_LEFT_ARROW", "KEY_RIGHT_ARROW",
"KEY_DOWN_ARROW", "KEY_PAGE_UP", "KEY_PAGE_DOWN", "KEY_END", "KEY_INSERT",
"KEY_DELETE", "KEY_LEFT_GUI", "KEY_RIGHT_GUI", "KEY_APPS",
"KEY_MULTIMEDIA_PREV_TRACK", "KEY_MULTIMEDIA_NEXT_TRACK", "KEY_MULTIMEDIA_MUTE",
"KEY_MULTIMEDIA_CALCULATOR", "KEY_MULTIMEDIA_PLAY", "KEY_MULTIMEDIA_STOP",
"KEY_MULTIMEDIA_VOL_DOWN", "KEY_MULTIMEDIA_VOL_UP", "KEY_MULTIMEDIA_WWW_HOME",
"KEY_MULTIMEDIA_WWW_SEARCH", "KEY_MULTIMEDIA_WWW_FAVORITES",
"KEY_MULTIMEDIA_WWW_REFRESH", "KEY_MULTIMEDIA_WWW_STOP",
"KEY_MULTIMEDIA_WWW_FORWARD", "KEY_MULTIMEDIA_WWW_BACK",
"KEY_MULTIMEDIA_MY_COMPUTER", "KEY_MULTIMEDIA_EMAIL",
"KEY_MULTIMEDIA_MEDIA_SELECT", "KEY_ACPI_POWER", "KEY_ACPI_SLEEP", "KEY_ACPI_WAKE"};
#endif
namespace Driver
{
char GetScanCode(uint8_t ScanCode, bool Upper)
{
ScanCode &= 0x7F; /* Remove KEY_PRESSED bit */
if (ScanCode >= sizeof(ScanCodeConversionTableLower))
{
warn("Unknown scancode %x", ScanCode);
return 0x00;
}
// debug("Scancode %x (%s)", ScanCode, ScanCodeDebugNames[ScanCode]);
return Upper
? ScanCodeConversionTableUpper[ScanCode]
: ScanCodeConversionTableLower[ScanCode];
}
bool IsValidChar(uint8_t ScanCode)
{
ScanCode &= 0x7F; /* Remove KEY_PRESSED bit */
if (ScanCode >= sizeof(ScanCodeConversionTableLower))
return false;
if (ScanCode > KEY_M)
{
if (ScanCode < KEYPAD_7)
return false; /* F1 - F12 */
switch (ScanCode)
{
case KEY_MINUS:
case KEY_EQUAL:
case KEY_LEFT_BRACKET:
case KEY_RIGHT_BRACKET:
case KEY_RETURN:
case KEY_SEMICOLON:
case KEY_APOSTROPHE:
case KEY_BACK_TICK:
case KEY_BACKSLASH:
case KEY_COMMA:
case KEY_PERIOD:
case KEY_SLASH:
case KEY_SPACE:
return true;
default:
return false;
}
}
return true;
}
}