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更新PCI驱动

This commit is contained in:
xiaoyi1212 2024-05-03 20:32:10 +08:00
parent 52000ef135
commit 9a851018f7
28 changed files with 1306 additions and 89 deletions
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2
.gitignore vendored
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@ -6,4 +6,6 @@ cmake-build-debug/
isodir/
OSMain/
crashpowerdos-x86-nodesktop-rebuild-0.2.0.iso

13
build.py
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@ -1,4 +1,5 @@
import os
import sys
gcc = '/i686_elf_tools/bin/i686-elf-gcc.exe -std=gnu99 -I include/ -std=gnu99 -ffreestanding -O2 -c -Wincompatible-pointer-types'
asm = '/i686_elf_tools/bin/i686-elf-as.exe'
@ -6,11 +7,15 @@ nasm = "nasm -f elf32"
ld = '/i686_elf_tools/bin/i686-elf-ld.exe'
cd = os.getcwd() # 获取当前执行目录 'D:\CrashPowerDOS-main\'
out = "target"
def clean():
print("Clean target folder")
for file in os.listdir(cd + "\\target"): # 遍历指定文件夹下所有文件
os.remove(cd + "\\target\\" + file)
return 0
def build_boot(): # 构建引导程序
print("Building boot source code...")
status = True
@ -95,4 +100,10 @@ a = linker()
if a != 0:
exit(-1)
print("Launching i386 vm...")
os.system("qemu-system-i386 -vga std -kernel isodir\\sys\\kernel.elf -drive format=qcow2,file=cpos.qcow2")
if len(sys.argv) == 0 or sys.argv[1] == 'vga':
print("Graphics MODE [VGA]")
os.system("qemu-system-i386 -net nic,model=pcnet -net user -kernel isodir\\sys\\kernel.elf -drive format=qcow2,file=cpos.qcow2")
elif sys.argv[1] == 'vbe':
print("Graphics MODE [VBE]")
os.system("qemu-system-i386 -vga std -net nic,model=pcnet -net user -kernel isodir\\sys\\kernel.elf -drive format=qcow2,file=cpos.qcow2")

12
driver/acpi.c
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@ -170,14 +170,18 @@ static int AcpiPowerHandler(registers_t *irq) {
}
static void AcpiPowerInit() {
uint32_t len = facp->PM1_EVT_LEN / 2;
if(!facp) return;
uint8_t len = facp->PM1_EVT_LEN / 2;
uint32_t *PM1a_ENABLE_REG = facp->PM1a_EVT_BLK + len;
uint32_t *PM1b_ENABLE_REG = facp->PM1b_EVT_BLK + len;
if (!facp)
return;
if(PM1b_ENABLE_REG == len)
PM1b_ENABLE_REG = 0;
io_out16((uint16_t)PM1a_ENABLE_REG, (uint8_t)(1 << 8));
printf("[acpi]: Setting Power event listener...\n");
io_out16(PM1a_ENABLE_REG, (1 << 8));
if (PM1b_ENABLE_REG) {
io_out16((uint16_t)PM1b_ENABLE_REG, (uint8_t)(1 << 8));
}

157
driver/pci.c Normal file
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@ -0,0 +1,157 @@
#include "../include/pci.h"
#include "../include/memory.h"
#include "../include/io.h"
#include "../include/printf.h"
unsigned int PCI_ADDR_BASE;
uint8_t pci_get_drive_irq(uint8_t bus, uint8_t slot, uint8_t func) {
return (uint8_t)read_pci(bus, slot, func, 0x3c);
}
uint32_t pci_get_port_base(uint8_t bus, uint8_t slot, uint8_t func) {
uint32_t io_port = 0;
for(int i = 0;i<6;i++) {
base_address_register bar = get_base_address_register(bus,slot,func,i);
if(bar.type == input_output) {
io_port = (uint32_t)bar.address;
}
}
return io_port;
}
void PCI_GET_DEVICE(uint16_t vendor_id, uint16_t device_id, uint8_t* bus, uint8_t* slot, uint8_t* func) {
unsigned char* pci_drive = PCI_ADDR_BASE;
for (;; pci_drive += 0x110 + 4) {
if (pci_drive[0] == 0xff) {
struct pci_config_space_public* pci_config_space_puclic;
pci_config_space_puclic =
(struct pci_config_space_public*)(pci_drive + 0x0c);
if (pci_config_space_puclic->VendorID == vendor_id &&
pci_config_space_puclic->DeviceID == device_id) {
*bus = pci_drive[1];
*slot = pci_drive[2];
*func = pci_drive[3];
return;
}
} else {
break;
}
}
}
uint32_t read_bar_n(uint8_t bus, uint8_t device, uint8_t function, uint8_t bar_n) {
uint32_t bar_offset = 0x10 + 4 * bar_n;
return read_pci(bus, device, function, bar_offset);
}
void write_pci(uint8_t bus, uint8_t device, uint8_t function, uint8_t registeroffset, uint32_t value) {
uint32_t id = 1 << 31 | ((bus & 0xff) << 16) | ((device & 0x1f) << 11) |
((function & 0x07) << 8) | (registeroffset & 0xfc);
io_out32(PCI_COMMAND_PORT, id);
io_out32(PCI_DATA_PORT, value);
}
uint32_t pci_read_command_status(uint8_t bus, uint8_t slot, uint8_t func) {
return read_pci(bus, slot, func, 0x04);
}
void pci_write_command_status(uint8_t bus, uint8_t slot, uint8_t func, uint32_t value) {
write_pci(bus, slot, func, 0x04, value);
}
uint32_t read_pci(uint8_t bus, uint8_t device, uint8_t function, uint8_t registeroffset) {
uint32_t id = 1 << 31 | ((bus & 0xff) << 16) | ((device & 0x1f) << 11) |
((function & 0x07) << 8) | (registeroffset & 0xfc);
io_out32(PCI_COMMAND_PORT, id);
uint32_t result = io_in32(PCI_DATA_PORT);
return result >> (8 * (registeroffset % 4));
}
base_address_register get_base_address_register(uint8_t bus, uint8_t device, uint8_t function, uint8_t bar) {
base_address_register result;
uint32_t headertype = read_pci(bus, device, function, 0x0e) & 0x7e;
int max_bars = 6 - 4 * headertype;
if (bar >= max_bars)
return result;
uint32_t bar_value = read_pci(bus, device, function, 0x10 + 4 * bar);
result.type = (bar_value & 1) ? input_output : mem_mapping;
if (result.type == mem_mapping) {
switch ((bar_value >> 1) & 0x3) {
case 0: // 32
case 1: // 20
case 2: // 64
break;
}
result.address = (uint8_t*)(bar_value & ~0x3);
result.prefetchable = 0;
} else {
result.address = (uint8_t*)(bar_value & ~0x3);
result.prefetchable = 0;
}
return result;
}
void pci_config(unsigned int bus, unsigned int f, unsigned int equipment, unsigned int adder) {
unsigned int cmd = 0;
cmd = 0x80000000 + (unsigned int)adder + ((unsigned int)f << 8) +
((unsigned int)equipment << 11) + ((unsigned int)bus << 16);
// cmd = cmd | 0x01;
io_out32(PCI_COMMAND_PORT, cmd);
}
void init_pci(){
printf("[\035kernel\036]: Loading pci device...\n");
PCI_ADDR_BASE = kmalloc(1 * 1024 * 1024);
unsigned int i, BUS, Equipment, F, ADDER, *i1;
unsigned char *PCI_DATA = PCI_ADDR_BASE, *PCI_DATA1;
for (BUS = 0; BUS < 256; BUS++) { //查询总线
for (Equipment = 0; Equipment < 32; Equipment++) { //查询设备
for (F = 0; F < 8; F++) { //查询功能
pci_config(BUS, F, Equipment, 0);
if (io_in32(PCI_DATA_PORT) != 0xFFFFFFFF) {
//当前插槽有设备
//把当前设备信息映射到PCI数据区
int key = 1;
while (key) {
PCI_DATA1 = PCI_DATA;
*PCI_DATA1 = 0xFF; //表占用标志
PCI_DATA1++;
*PCI_DATA1 = BUS; //总线号
PCI_DATA1++;
*PCI_DATA1 = Equipment; //设备号
PCI_DATA1++;
*PCI_DATA1 = F; //功能号
PCI_DATA1++;
PCI_DATA1 = PCI_DATA1 + 8;
for (ADDER = 0; ADDER < 256; ADDER = ADDER + 4) {
pci_config(BUS, F, Equipment, ADDER);
i = io_in32(PCI_DATA_PORT);
i1 = i;
//*i1 = PCI_DATA1;
memcpy(PCI_DATA1, &i, 4);
PCI_DATA1 = PCI_DATA1 + 4;
}
for (uint8_t barNum = 0; barNum < 6; barNum++) {
base_address_register bar =
get_base_address_register(BUS, Equipment, F, barNum);
if (bar.address && (bar.type == input_output)) {
PCI_DATA1 += 4;
int i = ((uint32_t)(bar.address));
memcpy(PCI_DATA1, &i, 4);
printf("[pci]: Device Address: %08x Size: %d\n",bar.address,bar.size);
}
}
PCI_DATA = PCI_DATA + 0x110 + 4;
key = 0;
}
}
}
}
}
}

227
driver/pcnet.c Normal file
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@ -0,0 +1,227 @@
#include "../include/pcnet.h"
#include "../include/io.h"
#include "../include/description_table.h"
#include "../include/pci.h"
#include "../include/timer.h"
#include "../include/memory.h"
#include "../include/printf.h"
uint8_t bus = 255, dev = 255, func = 255;
extern unsigned int PCI_ADDR_BASE;
extern idt_ptr_t idt_ptr;
static int io_base = 0;
static uint8_t sendBufferDescMemory[2048 + 15];
static uint8_t sendBuffers[8][2048 + 15];
static uint8_t currentSendBuffer;
static uint8_t recvBufferDescMemory[2048 + 15];
static uint8_t recvBuffers[8][2048 + 15];
static uint8_t currentRecvBuffer;
uint8_t mac0, mac1, mac2, mac3, mac4, mac5;
struct InitializationBlock initBlock;
static struct BufferDescriptor* sendBufferDesc;
static struct BufferDescriptor* recvBufferDesc;
int recv = 0;
static void set_handler(int IRQ, int addr) {
register_interrupt_handler(0x20 + IRQ, (int)addr);
}
void into_32bitsRW() {
io_out16(io_base + RAP16, BCR18);
uint16_t tmp = io_in16(io_base + BDP16);
tmp |= 0x80;
io_out16(io_base + RAP16, BCR18);
io_out16(io_base + BDP16, tmp);
// 此时就处于32位读写模式了
}
void into_16bitsRW() {
// 切换到16位读写模式 与切换到32位读写模式相反
io_out32(io_base + RAP32, BCR18);
uint32_t tmp = io_in32(io_base + BDP32);
tmp &= ~0x80;
io_out32(io_base + RAP32, BCR18);
io_out32(io_base + BDP32, tmp);
}
void reset_card() {
// PCNET卡复位（约等于切换到16位读写模式
io_in16(io_base + RESET16);
io_out16(io_base + RESET16, 0x00);
// 执行完后需等待（sleep(1)）
}
void Activate() {
// 激活PCNET IRQ中断
io_out16(io_base + RAP16, CSR0);
io_out16(io_base + RDP16, 0x41);
io_out16(io_base + RAP16, CSR4);
uint32_t temp = io_in16(io_base + RDP16);
io_out16(io_base + RAP16, CSR4);
io_out16(io_base + RDP16, temp | 0xc00);
io_out16(io_base + RAP16, CSR0);
io_out16(io_base + RDP16, 0x42);
}
int pcnet_find_card() {
//printk("pcnet_find:");
PCI_GET_DEVICE(CARD_VENDOR_ID, CARD_DEVICE_ID, &bus, &dev, &func);
if (bus == 255) {
//printk("false\n");
return 0;
}
//printk("true");
return 1;
}
/*
static void init_Card_all() {
currentSendBuffer = 0;
currentRecvBuffer = 0;
// 获取MAC地址并保存
mac0 = io_in8(io_base + APROM0);
mac1 = io_in8(io_base + APROM1);
mac2 = io_in8(io_base + APROM2);
mac3 = io_in8(io_base + APROM3);
mac4 = io_in8(io_base + APROM4);
mac5 = io_in8(io_base + APROM5);
// printk("MAC Address: %02x:%02x:%02x:%02x:%02x:%02x\n", mac0, mac1, mac2,
// mac3,
// mac4, mac5);
// 这里约等于 into_16bitsRW();
reset_card();
clock_sleep(1);
io_out16(io_base + RAP16, BCR20);
io_out16(io_base + BDP16, 0x102);
io_out16(io_base + RAP16, CSR0);
io_out16(io_base + RDP16, 0x0004); // 暂时停止所有传输（用于初始化PCNET网卡
// initBlock传输初始化（CSR1=IB地址低16位，CSR2=IB地址高16位）
// &
// Send/Recv环形缓冲区的初始化
initBlock.mode = 0;
initBlock.reserved1numSendBuffers =
(0 << 4) | 3; // 高4位是reserved1 低4位是numSendBuffers
initBlock.reserved2numRecvBuffers =
(0 << 4) | 3; // 高4位是reserved2 低4位是numRecvBuffers
initBlock.mac0 = mac0;
initBlock.mac1 = mac1;
initBlock.mac2 = mac2;
initBlock.mac3 = mac3;
initBlock.mac4 = mac4;
initBlock.mac5 = mac5;
initBlock.reserved3 = 0;
initBlock.logicalAddress = 0;
sendBufferDesc =
(struct BufferDescriptor*)(((uint32_t)&sendBufferDescMemory[0] + 15) &
0xfffffff0);
initBlock.sendBufferDescAddress = (uint32_t)sendBufferDesc;
recvBufferDesc =
(struct BufferDescriptor*)(((uint32_t)&recvBufferDescMemory[0] + 15) &
0xfffffff0);
initBlock.recvBufferDescAddress = (uint32_t)recvBufferDesc;
for (uint8_t i = 0; i < 8; i++) {
sendBufferDesc[i].address = (((uint32_t)&sendBuffers[i] + 15) & 0xfffffff0);
sendBufferDesc[i].flags = 0xf7ff;
sendBufferDesc[i].flags2 = 0;
sendBufferDesc[i].avail = 0;
recvBufferDesc[i].address = (((uint32_t)&recvBuffers[i] + 15) & 0xfffffff0);
recvBufferDesc[i].flags = 0xf7ff | 0x80000000;
recvBufferDesc[i].flags2 = 0;
recvBufferDesc[i].avail = 0;
memclean(recvBufferDesc[i].address, 2048);
}
// CSR1,CSR2赋值（initBlock地址
io_out16(io_base + RAP16, CSR1);
io_out16(io_base + RDP16, (uint16_t)&initBlock);
io_out16(io_base + RAP16, CSR2);
io_out16(io_base + RDP16, (uint32_t)&initBlock >> 16);
Activate();
initBlock.logicalAddress = 0xFFFFFFFF;
ip = 0xFFFFFFFF;
gateway = 0xFFFFFFFF;
submask = 0xFFFFFFFF;
dns = 0xFFFFFFFF;
dhcp_discovery(&mac0);
while (gateway == 0xFFFFFFFF && submask == 0xFFFFFFFF && dns == 0xFFFFFFFF &&
ip == 0xFFFFFFFF) {
initBlock.logicalAddress = ip;
}
// 初始化ARP表
// DNSParseIP("baidu.com");
// UDPProviderSend(0x761ff8d7, initBlock.logicalAddress, 52949, 38,
// "来自Powerint DOS 386的消息：我是周志昊！！！", strlen("来自Powerint DOS
// 386的消息：我是周志昊！！！"));
}
*/
void init_pcnet_card() {
printf("[\035kernel\036]: Loading pcnet driver.\n");
// 允许PCNET网卡产生中断
// 1.注册中断
register_interrupt_handler(pci_get_drive_irq(bus, dev, func),PCNET_IRQ);
// 2,写COMMAND和STATUS寄存器
uint32_t conf = pci_read_command_status(bus, dev, func);
conf &= 0xffff0000; // 保留STATUS寄存器，清除COMMAND寄存器
conf |= 0x7; // 设置第0~2位（允许PCNET网卡产生中断
pci_write_command_status(bus, dev, func, conf);
io_base = pci_get_port_base(bus, dev, func);
//init_Card_all();
}
void PCNET_IRQ(registers_t *reg) {
io_out16(io_base + RAP16, CSR0);
uint16_t temp = io_in16(io_base + RDP16);
if ((temp & 0x0400) == 0x0400)
Recv();
io_out16(io_base + RAP16, CSR0);
io_out16(io_base + RDP16, temp); // 通知PCNET网卡 中断处理完毕
if ((temp & 0x0100) == 0x0100)
printf("PCNET INIT DONE\n");
return;
}
void Recv() {
recv = 1;
//printk("\nPCNET RECV: ");
for (; (recvBufferDesc[currentRecvBuffer].flags & 0x80000000) == 0;
currentRecvBuffer = (currentRecvBuffer + 1) % 8) {
if (!(recvBufferDesc[currentRecvBuffer].flags & 0x40000000) &&
(recvBufferDesc[currentRecvBuffer].flags & 0x03000000) == 0x03000000) {
uint32_t size = recvBufferDesc[currentRecvBuffer].flags & 0xfff;
if (size > 128)
size -= 4;
uint8_t* buffer = (uint8_t*)(recvBufferDesc[currentRecvBuffer].address);
for (int i = 0; i < (size > 128 ? 128 : size); i++) {
//printk("%02x ", buffer[i]);
}
//printk("\n");
}
recv = 0;
currentRecvBuffer = 0;
//TODO Card_Recv_Handler(recvBufferDesc[currentRecvBuffer].address);
memclean(recvBufferDesc[currentRecvBuffer].address, 2048);
recvBufferDesc[currentRecvBuffer].flags2 = 0;
recvBufferDesc[currentRecvBuffer].flags = 0x8000f7ff;
}
currentRecvBuffer = 0;
}

15
driver/rtl8139.c Normal file
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@ -0,0 +1,15 @@
/*
* rtl8139.c
* Realtek rtl8139 网卡驱动
* Copyright (C) zhouzhihao 2023
*/
#include "../include/rtl8139.h"
static uint8_t bus, dev, func;
static uint32_t io_base;
static uint8_t *sendBuffer[4];
static uint8_t *recvBuffer;
static uint8_t currentSendBuffer;
extern uint8_t mac0, mac1, mac2, mac3, mac4, mac5;

46
driver/vbe.c
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@ -1,45 +1,17 @@
#include "../include/graphics.h"
#include "../include/io.h"
unsigned int vesa_fb_width, vesa_fb_height, vesa_fb_bpp, vesa_fb_pitch;
uint8_t *vesa_fb_addr;
extern int status;
void putPix(unsigned int x, unsigned int y, uint32_t color) {
if (status != 1)
return;
color_rgba col;
col.r = color >> 16;
col.g = color >> 8;
col.b = color;
col.a = 0xFF;
if (x >= vesa_fb_width || y >= vesa_fb_height)
return;
unsigned where = x * (vesa_fb_bpp / 8) + y * vesa_fb_pitch;
vesa_fb_addr[where + 0] = col.b;
vesa_fb_addr[where + 1] = col.g;
vesa_fb_addr[where + 2] = col.r;
int isVBEDisplayMode(uint16_t vbe_mode_info) {
if (vbe_mode_info & (1 << 12)) {
return 1;
} else {
return 0;
}
}
void initVBE(multiboot_t *mboot) {
vesa_fb_addr = (uint8_t * )(
int)(mboot->framebuffer_addr);
vesa_fb_pitch = mboot->framebuffer_pitch;
vesa_fb_bpp = mboot->framebuffer_bpp;
vesa_fb_width = mboot->framebuffer_width;
vesa_fb_height = mboot->framebuffer_height;
printf("[\035VBE driver\036]: Framebuffer address: 0x%08x\n",vesa_fb_addr);
printf("[\035VBE driver\036]: Screen Size: width:%d - height:%d\n",mboot->framebuffer_width,mboot->framebuffer_height);
// TODO: insert into devtable
}
void vbe_putchar(char c) {
}
void vbe_clear() {
if(isVBEDisplayMode(mboot->vbe_mode_info)){
printf("[\035kernel\036]: Graphics mode: \037VBE\036\n");
} else printf("[\035kernel\036]: Graphics mode: \037VGA\036\n");
}

113
driver/vdisk.c Normal file
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@ -0,0 +1,113 @@
/*
* Plants-OS VDiskDriver
* Copyright by min0911.
*/
#include "../include/vdisk.h"
#include "../include/printf.h"
int getReadyDisk();
vdisk vdisk_ctl[10];
int init_vdisk() {
for (int i = 0; i < 10; i++) {
vdisk_ctl[i].flag = 0; // 设置为未使用
}
printf("[\035kernel\036]: VDisk driver load success!\n");
return 0;
}
int register_vdisk(vdisk vd) {
for (int i = 0; i < 10; i++) {
if (!vdisk_ctl[i].flag) {
vdisk_ctl[i] = vd; // 找到了！
return i + ('A'); // 注册成功，返回drive
}
}
printf("[vdisk]not found\n");
return 0; // 注册失败
}
int logout_vdisk(char drive) {
int indx = drive - ('A');
if (indx > 10) {
return 0; // 失败
}
if (vdisk_ctl[indx].flag) {
vdisk_ctl[indx].flag = 0; // 设置为没有
return 1; // 成功
} else {
return 0; // 失败
}
}
int rw_vdisk(char drive, unsigned int lba, unsigned char *buffer,
unsigned int number, int read) {
int indx = drive - ('A');
if (indx > 10) {
return 0; // 失败
}
if (vdisk_ctl[indx].flag) {
if (read) {
vdisk_ctl[indx].Read(drive, buffer, number, lba);
//for(;;);
} else {
vdisk_ctl[indx].Write(drive, buffer, number, lba);
}
return 1; // 成功
} else {
return 0; // 失败
}
}
int have_vdisk(char drive) {
int indx = drive - 'A';
if (indx > 10) {
return 0; // 失败
}
if (vdisk_ctl[indx].flag) {
return 1; // 成功
} else {
return 0; // 失败
}
}
void Disk_Read(unsigned int lba, unsigned int number, void *buffer,
char drive) {
if (have_vdisk(drive)) {
for (int i = 0; i < number; i += SECTORS_ONCE) {
int sectors =
((number - i) >= SECTORS_ONCE) ? SECTORS_ONCE : (number - i);
rw_vdisk(drive, lba + i, buffer + i * 512, sectors, 1);
}
}
}
int disk_Size(char drive) {
unsigned char drive1 = drive;
if (have_vdisk(drive1)) {
int indx = drive1 - 'A';
return vdisk_ctl[indx].size;
} else {
print("Disk Not Ready.\n");
return 0;
}
return 0;
}
int DiskReady(char drive) { return have_vdisk(drive); }
int getReadyDisk() { return 0; }
void Disk_Write(unsigned int lba, unsigned int number, void *buffer,
char drive) {
if (have_vdisk(drive)) {
for (int i = 0; i < number; i += SECTORS_ONCE) {
int sectors =
((number - i) >= SECTORS_ONCE) ? SECTORS_ONCE : (number - i);
rw_vdisk(drive, lba + i, buffer + i * 512, sectors, 0);
}
}
}

18
driver/vga.c
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@ -47,10 +47,6 @@ void vga_install(void) {
}
void vga_clear() {
if(status){
vbe_clear();
return;
}
for (size_t y = 0; y < VGA_HEIGHT; y++) {
for (size_t x = 0; x < VGA_WIDTH; x++) {
const size_t index = y * VGA_WIDTH + x;
@ -80,10 +76,6 @@ void vga_putentryat(char c, uint8_t color, size_t x, size_t y) {
}
void vga_putchar(char c) {
if(status){
vbe_putchar(c);
return;
}
uint8_t attributeByte = terminal_color; // 黑底白字
uint16_t attribute = attributeByte << 8;
uint16_t *location;
@ -148,13 +140,3 @@ void vga_write(const char *data, size_t size) {
void vga_writestring(const char *data) {
vga_write(data, strlen(data));
}
void printf(const char *formet, ...) {
int len;
va_list ap;
va_start(ap, formet);
char *buf[1024] = {0};
len = vsprintf(buf, formet, ap);
vga_writestring(buf);
va_end(ap);
}

2
include/common.h
View File

@ -11,6 +11,8 @@
#include <stdint.h>
#include <stdarg.h>
typedef int bool;
void assert(int b,char* message);
size_t strlen(const char* str);
int strcmp(const char *s1, const char *s2);

2
include/description_table.h
View File

@ -126,4 +126,6 @@ void write_tss(int32_t num, uint16_t ss0, uint32_t esp0);
void gdt_install();
void idt_install();
void idt_set_gate(uint8_t num, uint32_t base, uint16_t sel, uint8_t flags);
#endif //CRASHPOWEROS_DESCRIPTION_TABLE_H

93
include/fat.h Normal file
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@ -0,0 +1,93 @@
#ifndef CRASHPOWEROS_FAT_H
#define CRASHPOWEROS_FAT_H
#include "../include/common.h"
struct FAT_CACHE {
unsigned int ADR_DISKIMG;
struct FAT_FILEINFO *root_directory;
struct LIST *directory_list;
struct LIST *directory_max_list;
struct LIST *directory_clustno_list;
int *fat;
int FatMaxTerms;
unsigned int ClustnoBytes;
unsigned short RootMaxFiles;
unsigned int RootDictAddress;
unsigned int FileDataAddress;
unsigned int imgTotalSize;
unsigned short SectorBytes;
unsigned int Fat1Address, Fat2Address;
unsigned char *FatClustnoFlags;
int type;
};
typedef struct {
struct FAT_CACHE dm;
struct FAT_FILEINFO *dir;
} fat_cache;
#define get_dm(vfs) ((fat_cache *)(vfs->cache))->dm
#define get_now_dir(vfs) ((fat_cache *)(vfs->cache))->dir
#define get_clustno(high, low) (high << 16) | (low & 0xffff)
#define clustno_end(type) 0xfffffff & ((((1 << (type - 1)) - 1) << 1) + 1)
struct FAT_FILEINFO {
unsigned char name[8], ext[3], type;
char reserve;
unsigned char create_time_tenth;
unsigned short create_time, create_date, access_date, clustno_high;
unsigned short update_time, update_date, clustno_low;
unsigned int size;
};
typedef struct FILE {
unsigned int mode;
unsigned int fileSize;
unsigned char *buffer;
unsigned int bufferSize;
unsigned int p;
char *name;
} FILE;
typedef enum { FLE, DIR, RDO, HID, SYS } ftype;
typedef struct {
char name[255];
ftype type;
unsigned int size;
unsigned short year, month, day;
unsigned short hour, minute;
} vfs_file;
typedef struct vfs_t {
struct List *path;
void *cache;
char FSName[255];
int disk_number;
uint8_t drive; // 大写（必须）
vfs_file *(*FileInfo)(struct vfs_t *vfs, char *filename);
struct List *(*ListFile)(struct vfs_t *vfs, char *dictpath);
bool (*ReadFile)(struct vfs_t *vfs, char *path, char *buffer);
bool (*WriteFile)(struct vfs_t *vfs, char *path, char *buffer, int size);
bool (*DelFile)(struct vfs_t *vfs, char *path);
bool (*DelDict)(struct vfs_t *vfs, char *path);
bool (*CreateFile)(struct vfs_t *vfs, char *filename);
bool (*CreateDict)(struct vfs_t *vfs, char *filename);
bool (*RenameFile)(struct vfs_t *vfs, char *filename, char *filename_of_new);
bool (*Attrib)(struct vfs_t *vfs, char *filename, ftype type);
bool (*Format)(uint8_t disk_number);
void (*InitFs)(struct vfs_t *vfs, uint8_t disk_number);
void (*DeleteFs)(struct vfs_t *vfs);
bool (*Check)(uint8_t disk_number);
bool (*cd)(struct vfs_t *vfs, char *dictName);
int (*FileSize)(struct vfs_t *vfs, char *filename);
void (*CopyCache)(struct vfs_t *dest, struct vfs_t *src);
int flag;
} vfs_t;
/*
void read_fat(unsigned char *img, int *fat, unsigned char *ff, int max,int type);
int get_directory_max(struct FAT_FILEINFO *directory, vfs_t *vfs);
void file_loadfile(int clustno, int size, char *buf, int *fat, vfs_t *vfs);
void file_savefat(int *fat, int clustno, int length, vfs_t *vfs);
*/
#endif

17
include/graphics.h
View File

@ -69,13 +69,6 @@ struct color_rgba {
uint8_t a;
};
typedef struct {
unsigned short di, si, bp, sp, bx, dx, cx, ax;
unsigned short gs, fs, es, ds, eflags;
} regs16_t;
typedef struct color_rgba color_rgba;
uint8_t vga_entry_color(enum vga_color fg, enum vga_color bg);
@ -100,14 +93,4 @@ void vga_clear();
void move_cursor();
void printf(const char *formet, ...);
void vbe_putchar(char c);
void vbe_clear();
void initVBE(multiboot_t *mboot);
void putPix(unsigned int x, unsigned int y, uint32_t color);
#endif

5
include/io.h
View File

@ -4,6 +4,11 @@
#include <stdint.h>
typedef struct {
unsigned short di, si, bp, sp, bx, dx, cx, ax;
unsigned short gs, fs, es, ds, eflags;
} regs16_t;
struct tty {
int using1; // 使用标志
void *vram; // 显存（也可以当做图层）

24
include/list.h Normal file
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@ -0,0 +1,24 @@
#ifndef CRASHPOWEROS_LIST_H
#define CRASHPOWEROS_LIST_H
#include <stdint.h>
#include <stddef.h>
struct ListCtl {
struct List *start;
struct List *end;
int all;
};
struct List {
struct ListCtl *ctl;
struct List *prev;
uintptr_t val;
struct List *next;
};
typedef struct List List;
struct List* FindForCount(size_t count, struct List* Obj);
int GetLastCount(struct List* Obj);
#endif

2
include/memory.h
View File

@ -83,4 +83,6 @@ uint32_t kmalloc_ap(uint32_t size, uint32_t *phys);
void init_page();
void memclean(char *s, int len);
#endif //CRASHPOWEROS_MEMORY_H

8
include/multiboot.h
View File

@ -18,14 +18,6 @@
typedef struct multiboot_t {
uint32_t flags; // Multiboot 的版本信息
/**
* 从 BIOS 获知的可用内存
*
* mem_lower和mem_upper分别指出了低端和高端内存的大小，单位是K。
* 低端内存的首地址是0，高端内存的首地址是1M。
* 低端内存的最大可能值是640K。
* 高端内存的最大可能值是最大值减去1M。但并不保证是这个值。
*/
uint32_t mem_lower;
uint32_t mem_upper;

57
include/pci.h Normal file
View File

@ -0,0 +1,57 @@
#ifndef CRASHPOWEROS_PCI_H
#define CRASHPOWEROS_PCI_H
#define PCI_COMMAND_PORT 0xCF8
#define PCI_DATA_PORT 0xCFC
#define mem_mapping 0
#define input_output 1
#include <stdint.h>
typedef struct base_address_register {
int prefetchable;
uint8_t* address;
uint32_t size;
int type;
} base_address_register;
struct pci_config_space_public {
unsigned short VendorID;
unsigned short DeviceID;
unsigned short Command;
unsigned short Status;
unsigned char RevisionID;
unsigned char ProgIF;
unsigned char SubClass;
unsigned char BaseClass;
unsigned char CacheLineSize;
unsigned char LatencyTimer;
unsigned char HeaderType;
unsigned char BIST;
unsigned int BaseAddr[6];
unsigned int CardbusCIS;
unsigned short SubVendorID;
unsigned short SubSystemID;
unsigned int ROMBaseAddr;
unsigned char CapabilitiesPtr;
unsigned char Reserved[3];
unsigned int Reserved1;
unsigned char InterruptLine;
unsigned char InterruptPin;
unsigned char MinGrant;
unsigned char MaxLatency;
};
uint32_t pci_read_command_status(uint8_t bus, uint8_t slot, uint8_t func);
void PCI_GET_DEVICE(uint16_t vendor_id, uint16_t device_id, uint8_t* bus, uint8_t* slot, uint8_t* func);
uint32_t pci_get_port_base(uint8_t bus, uint8_t slot, uint8_t func);
uint8_t pci_get_drive_irq(uint8_t bus, uint8_t slot, uint8_t func);
void pci_write_command_status(uint8_t bus, uint8_t slot, uint8_t func, uint32_t value);
void write_pci(uint8_t bus, uint8_t device, uint8_t function, uint8_t registeroffset, uint32_t value);
uint32_t read_bar_n(uint8_t bus, uint8_t device, uint8_t function, uint8_t bar_n);
uint32_t read_pci(uint8_t bus, uint8_t device, uint8_t function, uint8_t registeroffset);
base_address_register get_base_address_register(uint8_t bus, uint8_t device, uint8_t function, uint8_t bar);
void pci_config(unsigned int bus, unsigned int f, unsigned int equipment, unsigned int adder);
void init_pci();
#endif

62
include/pcnet.h Normal file
View File

@ -0,0 +1,62 @@
#ifndef CRASHPOWEROS_PCNET_H
#define CRASHPOWEROS_PCNET_H
#define CARD_VENDOR_ID 0x1022
#define CARD_DEVICE_ID 0x2000
// 为了使用该寄存器，必须将RAP设置为这些值
#define CSR0 0
#define CSR1 1
#define CSR2 2
#define CSR3 3
#define CSR4 4
#define BCR18 18
#define BCR20 20
// 16位I/O端口（或到I/O空间开始的偏移）。
#define APROM0 0x00
#define APROM1 0x01
#define APROM2 0x02
#define APROM3 0x03
#define APROM4 0x04
#define APROM5 0x05
// 16位读写模式下
#define RDP16 0x10
#define RAP16 0x12
#define RESET16 0x14
#define BDP16 0x16
// 32位读写模式下
#define RDP32 0x10
#define RAP32 0x14
#define RESET32 0x18
#define BDP32 0x1c
#include <stdint.h>
#include "isr.h"
struct InitializationBlock {
uint16_t mode;
uint8_t reserved1numSendBuffers;
uint8_t reserved2numRecvBuffers;
uint8_t mac0, mac1, mac2, mac3, mac4, mac5;
uint16_t reserved3;
uint64_t logicalAddress;
uint32_t recvBufferDescAddress;
uint32_t sendBufferDescAddress;
} __attribute__((packed));
struct BufferDescriptor {
uint32_t address;
uint32_t flags;
uint32_t flags2;
uint32_t avail;
} __attribute__((packed));
void into_32bitsRW();
void into_16bitsRW();
void reset_card();
void Activate();
int pcnet_find_card();
void init_pcnet_card();
void PCNET_IRQ(registers_t *reg);
void Recv();
#endif

5
include/printf.h
View File

@ -5,4 +5,9 @@
#include <stdint.h>
#include <stdarg.h>
int vsprintf(char *buf, const char *fmt, va_list args);
int sprintf(char *buf, const char *fmt, ...);
void printf(const char *formet, ...);
void print(char *message);
#endif //CRASHPOWEROS_PRINTF_H

26
include/rtl8139.h Normal file
View File

@ -0,0 +1,26 @@
#ifndef CRASHPOWEROS_RTL8139_H
#define CRASHPOWEROS_RTL8139_H
#define CARD_VENDOR_ID 0x10EC
#define CARD_DEVICE_ID 0x8139
#define MAC0 0x00
#define MAC1 0x01
#define MAC2 0x02
#define MAC3 0x03
#define MAC4 0x04
#define MAC5 0x05
#define MAR 0x08
#define RBSTART 0x30
#define CAPR 0x38
#define CMD 0x37
#define IMR 0x3C
#define ISR 0x3E
#define CONFIG_1 0x52
#define TCR 0x40
#define RCR 0x44
#define TSAD0 0x20
#define TSD0 0x10
#include <stdint.h>
#endif

46
include/vdisk.h Normal file
View File

@ -0,0 +1,46 @@
#ifndef CRASHPOWEROS_VDISK_H
#define CRASHPOWEROS_VDISK_H
#define SECTORS_ONCE 8
typedef struct {
void (*Read)(char drive, unsigned char *buffer, unsigned int number,
unsigned int lba);
void (*Write)(char drive, unsigned char *buffer, unsigned int number,
unsigned int lba);
int flag;
unsigned int size; // 大小
char DriveName[50];
} vdisk;
struct IDEHardDiskInfomationBlock {
char reserve1[2];
unsigned short CylinesNum;
char reserve2[2];
unsigned short HeadersNum;
unsigned short TrackBytes;
unsigned short SectorBytes;
unsigned short TrackSectors;
char reserve3[6];
char OEM[20];
char reserve4[2];
unsigned short BuffersBytes;
unsigned short EECCheckSumLength;
char Version[8];
char ID[40];
};
int init_vdisk();
int register_vdisk(vdisk vd);
int logout_vdisk(char drive);
int rw_vdisk(char drive, unsigned int lba, unsigned char *buffer,
unsigned int number, int read);
int have_vdisk(char drive);
void Disk_Read(unsigned int lba, unsigned int number, void *buffer,
char drive);
int disk_Size(char drive);
int DiskReady(char drive);
void Disk_Write(unsigned int lba, unsigned int number, void *buffer,
char drive);
#endif

380
kernel/fat.c Normal file
View File

@ -0,0 +1,380 @@
/*
* PlantsOS fat FileSystem
* Copyright by min0911
*/
#include "../include/vdisk.h"
#include "../include/fat.h"
#include "../include/memory.h"
#include "../include/list.h"
#include "../include/common.h"
/*
static inline int get_fat_date(unsigned short year, unsigned short month,
unsigned short day) {
year -= 1980;
unsigned short date = 0;
date |= (year & 0x7f) << 9;
date |= (month & 0x0f) << 5;
date |= (day & 0x1f);
return date;
}
static inline int get_fat_time(unsigned short hour, unsigned short minute) {
unsigned short time = 0;
time |= (hour & 0x1f) << 11;
time |= (minute & 0x3f) << 5;
return time;
}
void read_fat(unsigned char *img, int *fat, unsigned char *ff, int max,
int type) {
if (type == 12) {
for (int i = 0, j = 0; i < max; i += 2) {
fat[i + 0] = (img[j + 0] | img[j + 1] << 8) & 0xfff;
fat[i + 1] = (img[j + 1] >> 4 | img[j + 2] << 4) & 0xfff;
j += 3;
}
// 保留簇
ff[0] = 1;
ff[1] = 1;
for (int i = 1; i < max; i++) {
if (fat[i] > 0 && fat[i] < 0xff0) {
ff[fat[i]] = 1;
} else if (fat[i] >= 0xff0 && fat[i] <= 0xfff) {
ff[i + 1] = 1;
}
}
} else if (type == 16) {
unsigned short *p = (unsigned short *)img;
for (int i = 0; i != max; i++) {
fat[i] = p[i];
}
ff[0] = 1;
ff[1] = 1;
for (int i = 1; i < max; i++) {
if (fat[i] > 0 && fat[i] < 0xfff0) {
ff[fat[i]] = 1;
} else if (fat[i] >= 0xfff0 && fat[i] <= 0xffff) {
ff[i + 1] = 1;
}
}
} else if (type == 32) {
unsigned int *p = (unsigned int *)img;
for (int i = 0; i != max; i++) {
fat[i] = p[i];
}
ff[0] = 1;
ff[1] = 1;
for (int i = 1; i < max; i++) {
if (fat[i] > 0 && fat[i] < 0xffffff0) {
ff[fat[i]] = 1;
} else if (fat[i] >= 0xffffff0 && fat[i] <= 0xfffffff) {
ff[i + 1] = 1;
}
}
}
return;
}
int get_directory_max(struct FAT_FILEINFO *directory, vfs_t *vfs) {
if (directory == get_dm(vfs).root_directory) {
return get_dm(vfs).RootMaxFiles;
}
for (int i = 1; FindForCount(i, get_dm(vfs).directory_list) != NULL; i++) {
struct List *l = FindForCount(i, get_dm(vfs).directory_list);
if ((struct FAT_FILEINFO *)l->val == directory) {
return (int)FindForCount(i, get_dm(vfs).directory_max_list)->val;
}
}
}
void file_loadfile(int clustno, int size, char *buf, int *fat, vfs_t *vfs) {
if (!size) {
return;
}
void *img = kmalloc(((size - 1) / get_dm(vfs).ClustnoBytes + 1) *
get_dm(vfs).ClustnoBytes);
for (int i = 0; i != (size - 1) / get_dm(vfs).ClustnoBytes + 1; i++) {
uint32_t sec = (get_dm(vfs).FileDataAddress +
(clustno - 2) * get_dm(vfs).ClustnoBytes) /
get_dm(vfs).SectorBytes;
Disk_Read(sec, get_dm(vfs).ClustnoBytes / get_dm(vfs).SectorBytes,
img + i * get_dm(vfs).ClustnoBytes, vfs->disk_number);
clustno = fat[clustno];
}
memcpy((void *)buf, img, size);
kfree(img, ((size - 1) / get_dm(vfs).SectorBytes + 1) *
get_dm(vfs).SectorBytes);
return;
}
void file_savefile(int clustno, int size, char *buf, int *fat,
unsigned char *ff, vfs_t *vfs) {
uint32_t clustall = 0;
int tmp = clustno;
int end = clustno_end(get_dm(vfs).type);
while (fat[clustno] != end) { // 计算文件占多少Fat项 Fat项 = 大小 / 簇大小 + 1
clustno = fat[clustno];
clustall++;
}
int old_clustno = clustno;
clustno = tmp;
int alloc_size;
if (size >
(clustall + 1) *
get_dm(vfs).ClustnoBytes) { // 新大小 > (旧大小 / 簇大小 + 1) * 簇大小
// 请求内存大小 = (新大小 / 簇大小 + 1) * 簇大小
alloc_size =
((size - 1) / get_dm(vfs).ClustnoBytes + 1) * get_dm(vfs).ClustnoBytes;
// 分配Fat（这里需要在写盘前分配）
for (int size1 = size; size1 > ((clustall + 1) * get_dm(vfs).ClustnoBytes);
size1 -= get_dm(vfs).ClustnoBytes) {
for (int i = 0; i != get_dm(vfs).FatMaxTerms; i++) {
if (!ff[i]) {
fat[old_clustno] = i;
old_clustno = i;
ff[i] = true;
break;
}
}
}
fat[old_clustno] = end; // 结尾Fat
ff[old_clustno] = true;
} else if (size <=
(clustall + 1) *
get_dm(vfs).ClustnoBytes) { // 新大小 <= (旧大小 / 簇大小
// + 1) * 簇大小
// 请求内存大小 = (旧大小 / 簇大小 + 1) * 簇大小
alloc_size = (clustall + 1) * get_dm(vfs).ClustnoBytes;
// 这里不分配Fat的原因是要清空更改后多余的数据
}
void *img = kmalloc(alloc_size);
clean((char *)img, alloc_size);
memcpy(img, buf, size); // 把要写入的数据复制到新请求的内存地址
for (int i = 0; i != (alloc_size / get_dm(vfs).ClustnoBytes); i++) {
uint32_t sec = (get_dm(vfs).FileDataAddress +
(clustno - 2) * get_dm(vfs).ClustnoBytes) /
get_dm(vfs).SectorBytes;
Disk_Write(sec, get_dm(vfs).ClustnoBytes / get_dm(vfs).SectorBytes,
img + i * get_dm(vfs).ClustnoBytes, vfs->disk_number);
clustno = fat[clustno];
}
kfree(img, alloc_size);
if (size <
clustall *
get_dm(vfs).ClustnoBytes) { // 新大小 < (旧大小 / 簇大小) * 簇大小
// 分配Fat（中间情况没必要分配）
int i = old_clustno;
for (int size1 = clustall * get_dm(vfs).ClustnoBytes; size1 > size;
size1 -= get_dm(vfs).ClustnoBytes) {
fat[i] = 0;
ff[i] = 0;
for (int j = 0; j != get_dm(vfs).FatMaxTerms; j++) {
if (fat[j] == i) {
i = j;
}
}
}
old_clustno = i;
fat[old_clustno] = end;
ff[old_clustno] = 1;
}
file_savefat(fat, 0, get_dm(vfs).FatMaxTerms, vfs);
}
void file_savefat(int *fat, int clustno, int length, vfs_t *vfs) {
unsigned char *img = get_dm(vfs).ADR_DISKIMG + get_dm(vfs).Fat1Address;
int size, sec;
if (get_dm(vfs).type == 12) {
for (int i = 0; i <= length; i++) {
if ((clustno + i) % 2 == 0) {
img[(clustno + i) * 3 / 2 + 0] = fat[clustno + i] & 0xff;
img[(clustno + i) * 3 / 2 + 1] =
(fat[clustno + i] >> 8 | (img[(clustno + i) * 3 / 2 + 1] & 0xf0)) &
0xff;
} else if ((clustno + i) % 2 != 0) {
img[(clustno + i - 1) * 3 / 2 + 1] =
((img[(clustno + i - 1) * 3 / 2 + 1] & 0x0f) | fat[clustno + i]
<< 4) &
0xff;
img[(clustno + i - 1) * 3 / 2 + 2] = (fat[clustno + i] >> 4) & 0xff;
}
}
size = length * 3 / 2 - 1;
sec = clustno * 3 / 2;
} else if (get_dm(vfs).type == 16) {
for (int i = 0; i <= length; i++) {
img[(clustno + i) * 2 + 0] = fat[clustno + i] & 0xff;
img[(clustno + i) * 2 + 1] = (fat[clustno + i] >> 8) & 0xff;
}
size = length * 2 - 1;
sec = clustno * 2;
} else if (get_dm(vfs).type == 32) {
for (int i = 0; i <= length; i++) {
img[(clustno + i) * 4 + 0] = fat[clustno + i] & 0xff;
img[(clustno + i) * 4 + 1] = (fat[clustno + i] >> 8) & 0xff;
img[(clustno + i) * 4 + 2] = (fat[clustno + i] >> 16) & 0xff;
img[(clustno + i) * 4 + 3] = fat[clustno + i] >> 24;
}
size = length * 4 - 1;
sec = clustno * 4;
}
Disk_Write((get_dm(vfs).Fat1Address + sec) / get_dm(vfs).SectorBytes,
size / get_dm(vfs).SectorBytes + 1,
get_dm(vfs).ADR_DISKIMG + get_dm(vfs).Fat1Address,
vfs->disk_number);
Disk_Write((get_dm(vfs).Fat2Address + sec) / get_dm(vfs).SectorBytes,
size / get_dm(vfs).SectorBytes + 1,
get_dm(vfs).ADR_DISKIMG + get_dm(vfs).Fat2Address,
vfs->disk_number);
}
struct FAT_FILEINFO *file_search(char *name, struct FAT_FILEINFO *finfo,
int max) {
int i, j;
char s[12];
for (j = 0; j < 11; j++) {
s[j] = ' ';
}
j = 0;
for (i = 0; name[i] != 0; i++) {
if (j >= 11) {
return 0; //没有找到
}
if (name[i] == '.' && j <= 8) {
j = 8;
} else {
s[j] = name[i];
if ('a' <= s[j] && s[j] <= 'z') {
//将小写字母转换为大写字母
s[j] -= 0x20;
}
j++;
}
}
for (i = 0; i < max;) {
if (finfo[i].name[0] == 0x00) {
break;
}
if ((finfo[i].type & 0x18) == 0) {
for (j = 0; j < 11; j++) {
if (finfo[i].name[j] != s[j]) {
goto next;
}
}
return finfo + i; //找到文件
}
next:
i++;
}
return 0; //没有找到
}
struct FAT_FILEINFO *dict_search(char *name, struct FAT_FILEINFO *finfo,
int max) {
int i, j;
char s[12];
for (j = 0; j < 11; j++) {
s[j] = ' ';
}
j = 0;
for (i = 0; name[i] != 0; i++) {
if (j >= 11) {
return 0; //没有找到
} else {
s[j] = name[i];
if ('a' <= s[j] && s[j] <= 'z') {
//将小写字母转换为大写字母
s[j] -= 0x20;
}
j++;
}
}
for (i = 0; i < max;) {
if (finfo[i].name[0] == 0x00) {
break;
}
if (finfo[i].type == 0x10) {
for (j = 0; j < 11; j++) {
if (finfo[i].name[j] != s[j]) {
goto next;
}
}
return finfo + i; // 找到文件
}
next:
i++;
}
return 0; //没有找到
}
struct FAT_FILEINFO *Get_File_Address(char *path1, vfs_t *vfs) {
// TODO: Modifly it
struct FAT_FILEINFO *bmpDict = get_now_dir(vfs);
int drive_number = vfs->disk_number;
char *path = (char *)page_malloc(strlen(path1) + 1);
char *bmp = path;
strcpy(path, path1);
strtoupper(path);
if (strncmp("/", path, 1) == 0) {
path += 1;
bmpDict = get_dm(vfs).root_directory;
}
if (path[0] == '\\' || path[0] == '/') {
//跳过反斜杠和正斜杠
for (int i = 0; i < strlen(path); i++) {
if (path[i] != '\\' && path[i] != '/') {
path += i;
break;
}
}
}
char *temp_name = (char *)kmalloc(128);
struct FAT_FILEINFO *finfo = get_dm(vfs).root_directory;
int i = 0;
while (1) {
int j;
for (j = 0; i < strlen(path); i++, j++) {
if (path[i] == '\\' || path[i] == '/') {
temp_name[j] = '\0';
i++;
break;
}
temp_name[j] = path[i];
}
finfo = dict_search(temp_name, bmpDict, get_directory_max(bmpDict, vfs));
if (finfo == 0) {
if (path[i] != '\0') {
kfree((void *)temp_name, 128);
kfree((void *)bmp, strlen(path1) + 1);
return 0;
}
finfo = file_search(temp_name, bmpDict, get_directory_max(bmpDict, vfs));
if (finfo == 0) {
kfree((void *)temp_name, 128);
kfree((void *)bmp, strlen(path1) + 1);
return 0;
} else {
goto END;
}
} else {
if (get_clustno(finfo->clustno_high, finfo->clustno_low) != 0) {
for (int count = 1;
FindForCount(count, get_dm(vfs).directory_clustno_list) != NULL;
count++) {
struct List *list =
FindForCount(count, get_dm(vfs).directory_clustno_list);
if (get_clustno(finfo->clustno_high, finfo->clustno_low) ==
list->val) {
list = FindForCount(count, get_dm(vfs).directory_list);
bmpDict = (struct FAT_FILEINFO *)list->val;
break;
}
}
} else {
bmpDict = get_dm(vfs).root_directory;
}
clean(temp_name, 128);
}
}
END:
kfree((void *)temp_name, 128);
kfree((void *)bmp, strlen(path1) + 1);
return finfo;
}
*/

2
kernel/idt.c
View File

@ -9,7 +9,7 @@ idt_ptr_t idt_ptr;
extern void idt_flush(uint32_t);
static void idt_set_gate(uint8_t num, uint32_t base, uint16_t sel, uint8_t flags) {
void idt_set_gate(uint8_t num, uint32_t base, uint16_t sel, uint8_t flags) {
idt_entries[num].base_low = base & 0xFFFF;
idt_entries[num].base_high = (base >> 16) & 0xFFFF; // 拆成低位和高位

16
kernel/kernel.c
View File

@ -12,12 +12,16 @@
#include "../include/date.h"
#include "../include/acpi.h"
#include "../include/syscall.h"
#include "../include/vdisk.h"
#include "../include/pci.h"
#include "../include/pcnet.h"
extern uint32_t end;
extern int status;
uint32_t placement_address = (uint32_t) & end;
multiboot_t *multiboot_all;
void reset_kernel(){
printf("Restart %s for x86...\n",OS_NAME);
kill_all_task();
@ -37,7 +41,6 @@ uint32_t memory_all(){
}
void kernel_main(multiboot_t *multiboot) {
multiboot_all = multiboot;
io_cli();
vga_install();
if ((multiboot->mem_upper + multiboot->mem_lower) / 1024 + 1 < 16) {
@ -60,8 +63,15 @@ void kernel_main(multiboot_t *multiboot) {
printf("[\035kernel\036]: task load success!\n");
init_keyboard();
printf("[\035kernel\036]: Keyboard driver load success!\n");
multiboot_all = multiboot;
init_vdisk();
init_pci();
syscall_install();
if(pcnet_find_card()){
init_pcnet_card();
} else printf("[\035kernel\036]: \033Cannot found pcnet.\036\n");
print_cpu_id();
io_sti();
@ -69,7 +79,7 @@ void kernel_main(multiboot_t *multiboot) {
clock_sleep(25);
kernel_thread(setup_shell, NULL, "CPOS-Shell");
//kernel_thread(setup_shell, NULL, "CPOS-Shell");
launch_date();
for (;;) {

8
kernel/memory.c
View File

@ -1,5 +1,13 @@
#include "../include/memory.h"
void memclean(char *s, int len) {
// 清理某个内存区域（全部置0）
int i;
for (i = 0; i != len; i++) {
s[i] = 0;
}
return;
}
void *memcpy(void *dst_, const void *src_, uint32_t size) {
uint8_t *dst = dst_;

21
util/list.c Normal file
View File

@ -0,0 +1,21 @@
#include "../include/list.h"
int GetLastCount(struct List* Obj) {
return Obj->ctl->all;
}
struct List* FindForCount(size_t count, struct List* Obj) {
int count_last = GetLastCount(Obj);
struct List *p = Obj, *q = Obj->ctl->end;
if (count > count_last)
return (List*)NULL;
for (int i = 0, j = count_last;; i++, j--) {
if (i == count) {
return p;
} else if (j == count) {
return q;
}
p = p->next;
q = q->prev;
}
}

16
util/printf.c
View File

@ -1,5 +1,6 @@
#include "../include/printf.h"
#include "../include/common.h"
#include "../include/graphics.h"
static int skip_atoi(const char **s) {
int i = 0;
@ -279,3 +280,18 @@ int sprintf(char *buf, const char *fmt, ...) {
va_end(args);
return i;
}
void printf(const char *formet, ...) {
int len;
va_list ap;
va_start(ap, formet);
char *buf[1024] = {0};
len = vsprintf(buf, formet, ap);
print(buf);
va_end(ap);
}
void print(char *message) {
vga_writestring(message);
}