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feat(kernel/driver): implement built-in driver support

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Signed-off-by: EnderIce2 <enderice2@protonmail.com>
This commit is contained in:
EnderIce2
2025-03-02 21:34:16 +00:00
parent 426499090e
commit f824df9aad
12 changed files with 200 additions and 30 deletions
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136
Kernel/include/driver.hpp
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@ -38,6 +38,51 @@
#include <io.h>
#include <list>
struct BuiltInDriver
{
char Name[32] = {'\0'};
char Description[64] = {'\0'};
char Author[32] = {'\0'};
struct
{
int Major, Minor, Patch;
} Version = {0, 0, 0};
char License[32] = {'\0'};
bool Initialized = false;
int ErrorCode = 0;
int (*Entry)() = nullptr;
int (*Final)() = nullptr;
int (*Panic)() = nullptr;
int (*Probe)() = nullptr;
uintptr_t EntryPoint = 0;
};
extern const BuiltInDriver __kernel_builtin_drivers_start[];
extern const BuiltInDriver __kernel_builtin_drivers_end[];
#define REGISTER_BUILTIN_DRIVER(driverName, desc, auth, maj, min, patch, \
entryFunc, finalFunc, panicFunc, initFunc) \
int __builtin_driver_start_##driverName(dev_t id) \
{ \
DriverID = id; \
return 0; \
} \
static const BuiltInDriver __builtin_driver_##driverName \
__attribute__((section(".builtin_drivers"), used)) = { \
#driverName, \
desc, \
auth, \
{maj, min, patch}, \
"", \
false, \
0, \
entryFunc, \
finalFunc, \
panicFunc, \
initFunc, \
(uintptr_t)__builtin_driver_start_##driverName}
namespace Driver
{
char GetScanCode(uint8_t ScanCode, bool Upper);
@ -50,10 +95,10 @@ namespace Driver
RingBuffer<InputReport> *InputReports;
};
struct DriverObject
struct DriverObject : BuiltInDriver
{
bool IsBuiltIn = false;
uintptr_t BaseAddress = 0;
uintptr_t EntryPoint = 0;
Memory::VirtualMemoryArea *vma;
/* Path has the same pointer as in the Node */
@ -61,22 +106,6 @@ namespace Driver
std::unordered_map<uint8_t, void *> *InterruptHandlers;
std::unordered_map<dev_t, DriverHandlers> *DeviceOperations;
dev_t ID = 0;
char Name[32] = {'\0'};
char Description[64] = {'\0'};
char Author[32] = {'\0'};
struct
{
int Major, Minor, Patch;
} Version = {0, 0, 0};
char License[32] = {'\0'};
bool Initialized = false;
int ErrorCode = 0;
int (*Entry)() = nullptr;
int (*Final)() = nullptr;
int (*Panic)() = nullptr;
int (*Probe)() = nullptr;
};
class Manager
@ -93,7 +122,6 @@ namespace Driver
FileNode *devNode = nullptr;
FileNode *devInputNode = nullptr;
int LoadDriverFile(DriverObject &Drv, FileNode *File);
void ReloadDriver(dev_t driverID);
@ -153,7 +181,6 @@ namespace Driver
dev_t RegisterDevice(dev_t DriverID, DeviceType Type, const InodeOperations *Operations);
int ReportInputEvent(dev_t DriverID, InputReport *Report);
int UnregisterDevice(dev_t DriverID, dev_t Device);
void *AllocateMemory(dev_t DriverID, size_t Pages);
@ -168,4 +195,73 @@ namespace Driver
void *GetSymbolByName(const char *Name, int Version);
#ifndef NO_API_IN_HEADER
namespace v0
{
typedef int CriticalState;
void KernelPrint(dev_t DriverID, const char *Format, va_list args);
void KernelLog(dev_t DriverID, const char *Format, va_list args);
CriticalState EnterCriticalSection(dev_t DriverID);
void LeaveCriticalSection(dev_t DriverID, CriticalState PreviousState);
int RegisterInterruptHandler(dev_t DriverID, uint8_t IRQ, void *Handler);
int OverrideInterruptHandler(dev_t DriverID, uint8_t IRQ, void *Handler);
int UnregisterInterruptHandler(dev_t DriverID, uint8_t IRQ, void *Handler);
int UnregisterAllInterruptHandlers(dev_t DriverID, void *Handler);
dev_t RegisterFileSystem(dev_t DriverID, FileSystemInfo *Info, struct Inode *Root);
int UnregisterFileSystem(dev_t DriverID, dev_t Device);
pid_t CreateKernelProcess(dev_t DriverID, const char *Name);
pid_t CreateKernelThread(dev_t DriverID, pid_t pId, const char *Name, void *EntryPoint, void *Argument);
pid_t GetCurrentProcess(dev_t DriverID);
int KillProcess(dev_t DriverID, pid_t pId, int ExitCode);
int KillThread(dev_t DriverID, pid_t tId, pid_t pId, int ExitCode);
void Yield(dev_t DriverID);
void Sleep(dev_t DriverID, uint64_t Milliseconds);
void PIC_EOI(dev_t DriverID, uint8_t IRQ);
void IRQ_MASK(dev_t DriverID, uint8_t IRQ);
void IRQ_UNMASK(dev_t DriverID, uint8_t IRQ);
void PS2Wait(dev_t DriverID, const bool Output);
void PS2WriteCommand(dev_t DriverID, uint8_t Command);
void PS2WriteData(dev_t DriverID, uint8_t Data);
uint8_t PS2ReadData(dev_t DriverID);
uint8_t PS2ReadStatus(dev_t DriverID);
uint8_t PS2ReadAfterACK(dev_t DriverID);
void PS2ClearOutputBuffer(dev_t DriverID);
int PS2ACKTimeout(dev_t DriverID);
void *AllocateMemory(dev_t DriverID, size_t Pages);
void FreeMemory(dev_t DriverID, void *Pointer, size_t Pages);
void *MemoryCopy(dev_t DriverID, void *Destination, const void *Source, size_t Length);
void *MemorySet(dev_t DriverID, void *Destination, int Value, size_t Length);
void *MemoryMove(dev_t DriverID, void *Destination, const void *Source, size_t Length);
size_t StringLength(dev_t DriverID, const char String[]);
char *_strstr(dev_t DriverID, const char *Haystack, const char *Needle);
void MapPages(dev_t MajorID, void *PhysicalAddress, void *VirtualAddress, size_t Pages, uint32_t Flags);
void UnmapPages(dev_t MajorID, void *VirtualAddress, size_t Pages);
void AppendMapFlag(dev_t MajorID, void *Address, PageMapFlags Flag);
void RemoveMapFlag(dev_t MajorID, void *Address, PageMapFlags Flag);
void *Znwm(size_t Size);
void ZdlPvm(void *Pointer, size_t Size);
__PCIArray *GetPCIDevices(dev_t DriverID, uint16_t _Vendors[], uint16_t _Devices[]);
void InitializePCI(dev_t DriverID, void *_Header);
uint32_t GetBAR(dev_t DriverID, uint8_t i, void *_Header);
uint8_t iLine(dev_t DriverID, PCI::PCIDevice *Device);
uint8_t iPin(dev_t DriverID, PCI::PCIDevice *Device);
dev_t CreateDeviceFile(dev_t DriverID, const char *name, mode_t mode, const InodeOperations *Operations);
dev_t RegisterDevice(dev_t DriverID, DeviceType Type, const InodeOperations *Operations);
int UnregisterDevice(dev_t DriverID, dev_t Device);
int ReportInputEvent(dev_t DriverID, InputReport *Report);
}
#endif // !NO_API_IN_HEADER
#endif // !__FENNIX_KERNEL_DRIVER_H__