Update drivers

2025-07-11 15:19:23 +00:00 · 2024-01-19 06:44:00 +02:00
parent 2ee57b9756
commit da4a6317ea
83 changed files with 9425 additions and 598 deletions
--- a/library/base.c
+++ b/library/base.c
@ -0,0 +1,182 @@
+/*
+	This file is part of Fennix Drivers.
+
+	Fennix Drivers 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 Drivers 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 Drivers. If not, see <https://www.gnu.org/licenses/>.
+*/
+
+#include <base.h>
+
+#include <driver.h>
+#include <errno.h>
+
+__driverAPI *API = NULL;
+
+int RegisterInterruptHandler(uint8_t IRQ, void *Handler)
+{
+	if (Handler == NULL)
+		return -EINVAL;
+
+	return API->RegisterInterruptHandler(API->MajorID,
+										 IRQ,
+										 Handler);
+}
+
+int OverrideInterruptHandler(uint8_t IRQ, void *Handler)
+{
+	if (Handler == NULL)
+		return -EINVAL;
+
+	return API->OverrideInterruptHandler(API->MajorID,
+										 IRQ,
+										 Handler);
+}
+
+int UnregisterInterruptHandler(uint8_t IRQ, void *Handler)
+{
+	if (Handler == NULL)
+		return -EINVAL;
+
+	return API->UnregisterInterruptHandler(API->MajorID,
+										   IRQ,
+										   Handler);
+}
+
+int UnregisterAllInterruptHandlers(void *Handler)
+{
+	if (Handler == NULL)
+		return -EINVAL;
+
+	return API->UnregisterAllInterruptHandlers(API->MajorID,
+											   Handler);
+}
+
+void *AllocateMemory(size_t Pages)
+{
+	if (Pages == 0)
+		return NULL;
+
+	return API->RequestPages(API->MajorID,
+							 Pages);
+}
+
+void FreeMemory(void *Pointer, size_t Pages)
+{
+	if (Pointer == NULL || Pages == 0)
+		return;
+
+	API->FreePages(API->MajorID,
+				   Pointer,
+				   Pages);
+}
+
+void AppendMapFlag(void *Address, PageMapFlags Flag)
+{
+	API->AppendMapFlag(API->MajorID,
+					   Address,
+					   Flag);
+}
+
+void RemoveMapFlag(void *Address, PageMapFlags Flag)
+{
+	API->RemoveMapFlag(API->MajorID,
+					   Address,
+					   Flag);
+}
+
+void MapPages(void *PhysicalAddress, void *VirtualAddress, size_t Pages, uint32_t Flags)
+{
+	API->MapPages(API->MajorID,
+				  PhysicalAddress,
+				  VirtualAddress,
+				  Pages,
+				  Flags);
+}
+
+void UnmapPages(void *VirtualAddress, size_t Pages)
+{
+	API->UnmapPages(API->MajorID,
+					VirtualAddress,
+					Pages);
+}
+
+void KPrint(const char *Format, ...)
+{
+	va_list Args;
+	va_start(Args, Format);
+
+	API->KPrint(API->MajorID,
+				Format,
+				Args);
+
+	va_end(Args);
+}
+
+void Log(const char *Format, ...)
+{
+	va_list Args;
+	va_start(Args, Format);
+
+	API->KernelLog(API->MajorID,
+				   Format,
+				   Args);
+
+	va_end(Args);
+}
+
+CriticalState EnterCriticalSection()
+{
+	CriticalState cs;
+
+#if defined(__i386__) || defined(__x86_64__)
+
+	uintptr_t Flags;
+#if defined(__x86_64__)
+	asmv("pushfq");
+	asmv("popq %0"
+		 : "=r"(Flags));
+#else
+	asmv("pushfl");
+	asmv("popl %0"
+		 : "=r"(Flags));
+#endif
+	cs = Flags & (1 << 9);
+	asmv("cli");
+
+#elif defined(__arm__) || defined(__aarch64__)
+
+	uintptr_t Flags;
+	asmv("mrs %0, cpsr"
+		 : "=r"(Flags));
+	cs = Flags & (1 << 7);
+	asmv("cpsid i");
+
+#endif
+
+	return cs;
+}
+
+void LeaveCriticalSection(CriticalState PreviousState)
+{
+#if defined(__i386__) || defined(__x86_64__)
+
+	if (PreviousState)
+		asmv("sti");
+
+#elif defined(__arm__) || defined(__aarch64__)
+
+	if (PreviousState)
+		asmv("cpsie i");
+
+#endif
+}