diff options
Diffstat (limited to 'kernel.soso/main.c')
| -rw-r--r-- | kernel.soso/main.c | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/kernel.soso/main.c b/kernel.soso/main.c new file mode 100644 index 00000000..be7c97cb --- /dev/null +++ b/kernel.soso/main.c @@ -0,0 +1,234 @@ +#include "screen.h" +#include "descriptortables.h" +#include "timer.h" +#include "multiboot.h" +#include "fs.h" +#include "syscalls.h" +#include "serial.h" +#include "isr.h" +#include "vmm.h" +#include "alloc.h" +#include "process.h" +#include "keyboard.h" +#include "ttydriver.h" +#include "devfs.h" +#include "systemfs.h" +#include "pipe.h" +#include "sharedmemory.h" +#include "random.h" +#include "null.h" +#include "elf.h" +#include "debugprint.h" +#include "ramdisk.h" +#include "fatfilesystem.h" +#include "vbe.h" +#include "fifobuffer.h" +#include "gfx.h" +#include "mouse.h" +#include "sleep.h" + +extern uint32 _start; +extern uint32 _end; +uint32 gPhysicalKernelStartAddress = (uint32)&_start; +uint32 gPhysicalKernelEndAddress = (uint32)&_end; + +static void* locateInitrd(struct Multiboot *mbi, uint32* size) +{ + if (mbi->mods_count > 0) + { + uint32 startLocation = *((uint32*)mbi->mods_addr); + uint32 endLocation = *(uint32*)(mbi->mods_addr + 4); + + *size = endLocation - startLocation; + + return (void*)startLocation; + } + + return NULL; +} + +void printUsageInfo() +{ + char buffer[164]; + + sprintf(buffer, "Used kheap:%d", getKernelHeapUsed()); + Screen_Print(0, 60, buffer); + + sprintf(buffer, "Pages:%d/%d ", getUsedPageCount(), getTotalPageCount()); + Screen_Print(1, 60, buffer); + + sprintf(buffer, "Uptime:%d sec ", getUptimeSeconds()); + Screen_Print(2, 60, buffer); + + Thread* p = getMainKernelThread(); + + int line = 3; + sprintf(buffer, "[idle] cs:%d ", p->totalContextSwitchCount); + Screen_Print(line++, 60, buffer); + p = p->next; + while (p != NULL) + { + sprintf(buffer, "thread:%d cs:%d ", p->threadId, p->totalContextSwitchCount); + + Screen_Print(line++, 60, buffer); + + p = p->next; + } +} + +int executeFile(const char *path, char *const argv[], char *const envp[], FileSystemNode* tty) +{ + int result = -1; + + Process* process = getCurrentThread()->owner; + if (process) + { + FileSystemNode* node = getFileSystemNodeAbsoluteOrRelative(path, process); + if (node) + { + File* f = open_fs(node, 0); + if (f) + { + void* image = kmalloc(node->length); + + int32 bytesRead = read_fs(f, node->length, image); + + if (bytesRead > 0) + { + Process* newProcess = createUserProcessFromElfData("userProcess", image, argv, envp, process, tty); + + if (newProcess) + { + result = newProcess->pid; + } + } + close_fs(f); + + kfree(image); + } + + } + } + + return result; +} + +void printAsciiArt() +{ + printkf(" ________ ________ ________ ________ \n"); + printkf(" |\\ ____\\ |\\ __ \\ |\\ ____\\ |\\ __ \\ \n"); + printkf(" \\ \\ \\___|_ \\ \\ \\|\\ \\ \\ \\ \\___|_ \\ \\ \\|\\ \\ \n"); + printkf(" \\ \\_____ \\ \\ \\ \\\\\\ \\ \\ \\_____ \\ \\ \\ \\\\\\ \\ \n"); + printkf(" \\|____|\\ \\ \\ \\ \\\\\\ \\ \\|____|\\ \\ \\ \\ \\\\\\ \\ \n"); + printkf(" ____\\_\\ \\ \\ \\_______\\ ____\\_\\ \\ \\ \\_______\\\n"); + printkf(" |\\_________\\ \\|_______| |\\_________\\ \\|_______|\n"); + printkf(" \\|_________| \\|_________| \n"); + printkf("\n"); +} + +int kmain(struct Multiboot *mboot_ptr) +{ + int stack = 5; + + initializeDescriptorTables(); + + initializeSerial(); + + uint32 memoryKb = mboot_ptr->mem_upper;//96*1024; + initializeMemory(memoryKb); + + initializeVFS(); + initializeDevFS(); + + if (MULTIBOOT_FRAMEBUFFER_TYPE_RGB == mboot_ptr->framebuffer_type) + { + Gfx_Initialize((uint32*)(uint32)mboot_ptr->framebuffer_addr, mboot_ptr->framebuffer_width, mboot_ptr->framebuffer_height, mboot_ptr->framebuffer_bpp / 32, mboot_ptr->framebuffer_pitch); + + initializeTTYs(TRUE); + } + else + { + initializeTTYs(FALSE); + } + //printkf works after TTY initialization + + printAsciiArt(); + + printkf("Lower Memory: %d KB\n", mboot_ptr->mem_lower); + printkf("Upper Memory: %d KB\n", mboot_ptr->mem_upper); + printkf("Memory initialized for %d MB\n", memoryKb / 1024); + printkf("Kernel start: %x - end:%x\n", gPhysicalKernelStartAddress, gPhysicalKernelEndAddress); + printkf("Initial stack: %x\n", &stack); + printkf("Video: %dx%dx%d Pitch:%d\n", mboot_ptr->framebuffer_width, mboot_ptr->framebuffer_height, mboot_ptr->framebuffer_bpp, mboot_ptr->framebuffer_pitch); + + initializeSystemFS(); + initializePipes(); + initializeSharedMemory(); + + initializeTasking(); + + initialiseSyscalls(); + + initializeTimer(); + + initializeKeyboard(); + initializeMouse(); + + if (0 != mboot_ptr->cmdline) + { + printkf("Kernel cmdline:%s\n", (char*)mboot_ptr->cmdline); + } + + Debug_initialize("/dev/tty9"); + + Serial_PrintF("pitch:%d\n", mboot_ptr->framebuffer_pitch); + + initializeRandom(); + initializeNull(); + + createRamdisk("ramdisk1", 20*1024*1024); + + initializeFatFileSystem(); + + printkf("System started!\n"); + + char* argv[] = {"shell", NULL}; + char* envp[] = {"HOME=/", "PATH=/initrd", NULL}; + + uint32 initrdSize = 0; + uint8* initrdLocation = locateInitrd(mboot_ptr, &initrdSize); + if (initrdLocation == NULL) + { + PANIC("Initrd not found!\n"); + } + else + { + printkf("Initrd found at %x (%d bytes)\n", initrdLocation, initrdSize); + memcpy((uint8*)*(uint32*)getFileSystemNode("/dev/ramdisk1")->privateNodeData, initrdLocation, initrdSize); + BOOL mountSuccess = mountFileSystem("/dev/ramdisk1", "/initrd", "fat", 0, 0); + + if (mountSuccess) + { + printkf("Starting shell on TTYs\n"); + + executeFile("/initrd/init", argv, envp, getFileSystemNode("/dev/tty1")); + } + else + { + printkf("Mounting initrd failed!\n"); + } + } + + enableScheduler(); + + enableInterrupts(); + + while(TRUE) + { + //Idle thread + + halt(); + } + + return 0; +} |