201 lines
6.5 KiB
C
201 lines
6.5 KiB
C
//----------------------------------------------------------------------------//
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// GNU GPL OS/K //
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// //
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// Desc: Kaleid kernel base include file //
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// //
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// //
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// Copyright © 2018-2019 The OS/K Team //
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// //
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// This file is part of OS/K. //
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// //
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// OS/K is free software: you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation, either version 3 of the License, or //
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// any later version. //
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// //
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// OS/K is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY//without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with OS/K. If not, see <https://www.gnu.org/licenses/>. //
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//----------------------------------------------------------------------------//
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#ifndef _KALBASE_H
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#include <kalbase.h>
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#endif
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#ifdef __cplusplus
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#error "Kaleid's kernel won't compile in C++"
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#endif
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#ifndef _KALKERN_BASE_H
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#define _KALKERN_BASE_H
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//------------------------------------------//
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typedef struct Lock_t Lock_t;
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typedef struct Buffer_t Buffer_t;
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typedef struct Thread_t Thread_t;
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typedef struct Process_t Process_t;
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typedef struct Terminal_t Terminal_t;
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typedef struct ListHead_t ListHead_t;
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typedef struct ListNode_t ListNode_t;
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typedef struct Processor_t Processor_t;
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typedef struct BootInfo_t BootInfo_t;
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typedef enum ProcState_t ProcState_t;
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typedef enum TermColor_t TermColor_t;
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//------------------------------------------//
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// Multiprocessor misc. //
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//------------------------------------------//
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#ifndef NCPUS
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#define NCPUS 1
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#endif
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// Current CPU number
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#define _KeCurCPU 0
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// Process_t structure of current CPU
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#define KeCurCPU (cpuTable[_KeCurCPU])
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// Access the BootInfo_t structure
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#define BtGetBootInfo(x) (bootTab.x)
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//------------------------------------------//
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//
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// Holds all CPU-local variables
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//
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struct Processor_t
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{
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// CPU number, index in CPU list
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int index;
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// CPU APIC id
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int apicId;
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// CPU Vendor String (always 12 characters)
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char vendorStr[12];
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// CPU Model code (enum in cpu.h)
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int modelCode;
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// CPU Features flag
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uint featureFlag;
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// Number of ticks since boot time
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ulong ticks;
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// Current process & thread
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Process_t *process;
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Thread_t *thread;
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// Need re-schedule?
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bool needReSched;
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// Is preemption ON? ("PREEMPT_ON" in sched.h)
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ulong preemptCount;
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// List heads for the four priority classes
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ListHead_t *idlePrioProcs;
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ListHead_t *reglPrioProcs;
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ListHead_t *servPrioProcs;
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ListHead_t *timeCritProcs;
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};
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#define FB_EGA_TEXT 2
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#define FB_INDEXED 0
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#define FB_RGB 1
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#define BINFO_SIZE 4096
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struct BootInfo_t
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{
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// The Bootloader infos (GRUB in our case)
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struct {
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ushort valid;
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uint grubFlags; //flags
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uint modulesCount; //mods_count
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void *modulesAddr; //mods_addr
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char *grubName; //boot_loader_name
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void *kernelAddr;
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void *kernelEndAddr;
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} btldr;
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// Informations about drives
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struct {
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ushort drvValid;
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ushort bufferValid;
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uint bootDrv; //boot_device
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uint bufferLength; //drives_length
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void *bufferAddr; //drives_addr
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} drives;
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// Informations about memory
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struct {
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ushort memValid;
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ushort mapValid;
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//BIOS provided low and up memory
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uint lowMemory; //mem_lower
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uint upMemory; //mem_upper
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//GRUB provided memory map
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uint mapLength; //mmap_length
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void *mapAddr; //mmap_addr
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uint ramSize; //The ram (init by map.c)
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} memory;
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// Informations about the video drive
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struct {
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ushort vbeValid;
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ushort fbuValid;
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void *vbeControl; //vbe_control_info
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void *vbeModeInfo; //vbe_mode_info
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ushort vbeMode; //vbe_mode
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ushort vbeInterfaceSeg; //vbe_interface_seg
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ushort vbeInterfaceOff; //vbe_interface_off
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ushort vbeInterfaceLen; //vbe_interface_len
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void *framebufferAddr; //framebuffer_addr
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uint framebufferPitch; //framebuffer_pitch
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uint framebufferWidth; //framebuffer_width
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uint framebufferHeight; //framebuffer_height
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uchar framebufferBpp; //framebuffer_bpp
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uchar framebufferType; //framebuffer_type
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} video;
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// Informations about the microcode firmware (BIOS/EFI)
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struct {
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ushort apmValid;
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ushort romValid;
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uint apmTable; //apm_table
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uint romTable; //config_table
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} firmware;
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};
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//------------------------------------------//
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extern volatile int cpuCount;
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extern volatile BootInfo_t bootTab;
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extern volatile Processor_t cpuTable[NCPUS];
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//------------------------------------------//
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#define DEC_PER_CPU(pref, name, field, type) \
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static inline type pref##Get##name() { return KeGetCurCPU().field; } \
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static inline void _##pref##Set##name(type __val) \
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{ KeGetCurCPU().field = __val; }
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//------------------------------------------//
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// Needed by basically everyone
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#ifndef _KALEXTRAS_LOCKS_H
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#include <extras/locks.h>
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#endif
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//------------------------------------------//
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#endif
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