os-k/kaleid/include/kernel/base.h

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//----------------------------------------------------------------------------//
// GNU GPL OS/K //
// //
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// Desc: Kaleid kernel base include file //
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// //
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// //
// Copyright © 2018-2019 The OS/K Team //
// //
// This file is part of OS/K. //
// //
// OS/K 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 //
// any later version. //
// //
// OS/K 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 OS/K. If not, see <https://www.gnu.org/licenses/>. //
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//----------------------------------------------------------------------------//
#ifndef _KALBASE_H
#include <kalbase.h>
#endif
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#ifdef __cplusplus
#error "Kaleid's kernel won't compile in C++"
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#endif
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#ifndef _KALKERN_BASE_H
#define _KALKERN_BASE_H
//------------------------------------------//
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typedef struct Lock_t Lock_t;
typedef struct Thread_t Thread_t;
typedef struct Process_t Process_t;
typedef struct Terminal_t Terminal_t;
typedef struct ListHead_t ListHead_t;
typedef struct ListNode_t ListNode_t;
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;
typedef enum TermColor_t TermColor_t;
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//------------------------------------------//
// Multiprocessor misc. //
//------------------------------------------//
#ifndef NCPUS
#define NCPUS 1
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#endif
// Current CPU number
// Will return a CPU-local variable later
#define _GetCurCPU() 0
// Get Process_t structure of current CPU
#define GetCurCPU() (cpuTable[_GetCurCPU()])
#define PANICSTR_SIZE 1024
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//Get the BootInfo_t structure
#define GetBootInfo() (bootTab)
//------------------------------------------//
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//
// Holds all CPU-local variables
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//
struct Processor_t
{
// CPU number, index in CPU list
int index;
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// Panic string
char panicStr[PANICSTR_SIZE];
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// Number of ticks since boot time
ulong ticks;
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// Current process & thread
Process_t *process;
Thread_t *thread;
// Need re-schedule?
bool needReSched;
// Is preemption ON? ("PREEMPT_ON" in sched.h)
ulong preemptCount;
// List heads for the four priority classes
ListHead_t *idlePrioProcs;
ListHead_t *reglPrioProcs;
ListHead_t *servPrioProcs;
ListHead_t *timeCritProcs;
};
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#define FB_EGA_TEXT 2
#define FB_INDEXED 0
#define FB_RGB 1
struct BootInfo_t
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{
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// The Bootloader infos (GRUB in our case)
struct {
uint grubFlags; //flags
uint modulesCount; //mods_count
uint modulesAddr; //mods_addr
uint grubName; //boot_loader_name
} btldr;
// Informations about drives
struct {
uint bootDrv; //boot_device
uint bufferLength; //drives_length
uint bufferAddr; //drives_addr
} drives;
// Informations about memory
struct {
//BIOS provided low and up memory
uint lowMemory; //mem_lower
uint upMemory; //mem_upper
//GRUB provided memory map
uint mapLength; //mmap_length
uint mapAddr; //mmap_addr
} memory;
// Informations about the video drive
struct {
uint vbeControl; //vbe_control_info
uint vbeModeInfo; //vbe_mode_info
ushort vbeMode; //vbe_mode
ushort vbeInterfaceSeg; //vbe_interface_seg
ushort vbeInterfaceOff; //vbe_interface_off
ushort vbeInterfaceLen; //vbe_interface_len
ullong framebufferAddr; //framebuffer_addr
uint framebufferPitch; //framebuffer_pitch
uint framebufferWidth; //framebuffer_width
uint framebufferHeight; //framebuffer_height
uchar framebufferBpp; //framebuffer_bpp
uchar framebufferType; //framebuffer_type
} video;
// Informations about the microcode firmware (BIOS/EFI)
struct {
uint apmTable; //apm_table
uint romTable; //config_table
} firmware;
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};
//------------------------------------------//
extern int cpuCount;
extern Processor_t cpuTable[NCPUS];
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extern BootInfo_t bootTab;
//------------------------------------------//
#define DEC_PER_CPU(name, field, type) \
static inline type Get##name() { return GetCurCPU().field; } \
static inline void _Set##name(type __val) { GetCurCPU().field = __val; }
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//------------------------------------------//
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// Needed by basically everyone
#ifndef _KALEXTRAS_LOCKS_H
#include <extras/locks.h>
#endif
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//------------------------------------------//
#endif