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Code Issues Releases Wiki Activity

解决了一些小问题

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This commit is contained in:
fslongjin 2022-03-18 19:18:36 +08:00
parent 75eea551e6
commit 71d6af78d8
12 changed files with 484 additions and 465 deletions
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3
.vscode/settings.json vendored
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@ -20,7 +20,8 @@
"ptrace.h": "c",
"mouse.h": "c",
"keyboard.h": "c",
"apic.h": "c"
"apic.h": "c",
"ps2_keyboard.h": "c"
},
"C_Cpp.errorSquiggles": "Enabled"
}

12
kernel/Makefile
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@ -19,10 +19,10 @@ all: kernel
objcopy -I elf64-x86-64 -S -R ".comment" -R ".eh_frame" -O elf64-x86-64 kernel ../bin/kernel/kernel.elf
kernel: head.o entry.o main.o printk.o trap.o mm.o slab.o irq.o pic.o process.o syscall.o multiboot2.o cpu.o acpi.o keyboard.o mouse.o
kernel: head.o entry.o main.o printk.o trap.o mm.o slab.o irq.o pic.o process.o syscall.o multiboot2.o cpu.o acpi.o ps2_keyboard.o ps2_mouse.o
ld -b elf64-x86-64 -z muldefs -o kernel head.o exception/entry.o main.o common/printk.o exception/trap.o exception/irq.o mm/mm.o mm/slab.o process/process.o syscall/syscall.o driver/multiboot2/multiboot2.o \
common/cpu.o \
driver/acpi/acpi.o driver/interrupt/pic.o driver/keyboard/keyboard.o driver/mouse/mouse.o \
driver/acpi/acpi.o driver/interrupt/pic.o driver/keyboard/ps2_keyboard.o driver/mouse/ps2_mouse.o \
-T link.lds
head.o: head.S
@ -85,11 +85,11 @@ multiboot2.o: driver/multiboot2/multiboot2.c
acpi.o: driver/acpi/acpi.c
gcc $(CFLAGS) -c driver/acpi/acpi.c -o driver/acpi/acpi.o
keyboard.o: driver/keyboard/keyboard.c
gcc $(CFLAGS) -c driver/keyboard/keyboard.c -o driver/keyboard/keyboard.o
ps2_keyboard.o: driver/keyboard/ps2_keyboard.c
gcc $(CFLAGS) -c driver/keyboard/ps2_keyboard.c -o driver/keyboard/ps2_keyboard.o
mouse.o: driver/mouse/mouse.c
gcc $(CFLAGS) -c driver/mouse/mouse.c -o driver/mouse/mouse.o
ps2_mouse.o: driver/mouse/ps2_mouse.c
gcc $(CFLAGS) -c driver/mouse/ps2_mouse.c -o driver/mouse/ps2_mouse.o
clean:

8
kernel/common/printk.c
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@ -112,9 +112,9 @@ void auto_newline()
if (pos.y > pos.max_y)
{
pos.y = pos.max_y;
int lines_to_scroll = 2;
scroll(true, lines_to_scroll * pos.char_size_y, true);
pos.y -= (lines_to_scroll - 1);
int lines_to_scroll = 1;
scroll(true, lines_to_scroll * pos.char_size_y, false);
pos.y -= (lines_to_scroll-1);
}
}
@ -405,7 +405,7 @@ static int vsprintf(char *buf, const char *fmt, va_list args)
return str - buf;
}
static char *write_num(char *str, ll num, int base, int field_width, int precision, int flags)
static char *write_num(char *str, ul num, int base, int field_width, int precision, int flags)
{
/**
* @brief 将数字按照指定的要求转换成对应的字符串

2
kernel/common/printk.h
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@ -88,7 +88,7 @@ static int vsprintf(char *buf, const char *fmt, va_list args);
* @param precision 精度
* @param flags 标志位
*/
static char *write_num(char *str, ll num, int base, int field_width, int precision, int flags);
static char *write_num(char *str,ul num, int base, int field_width, int precision, int flags);
static char *write_float_point_num(char *str, double num, int field_width, int precision, int flags);

67
kernel/driver/keyboard/keyboard.c → kernel/driver/keyboard/ps2_keyboard.c
View File

@ -1,10 +1,10 @@
#include "keyboard.h"
#include "ps2_keyboard.h"
#include "../interrupt/apic/apic.h"
#include "../../mm/mm.h"
#include "../../mm/slab.h"
#include "../../common/printk.h"
static struct keyboard_input_buffer *kb_buf_ptr = NULL;
static struct ps2_keyboard_input_buffer *kb_buf_ptr = NULL;
// 功能键标志变量
static bool shift_l, shift_r, ctrl_l, ctrl_r, alt_l, alt_r;
@ -13,7 +13,7 @@ static bool kp_forward_slash, kp_en;
struct apic_IO_APIC_RTE_entry entry;
hardware_intr_controller keyboard_intr_controller =
hardware_intr_controller ps2_keyboard_intr_controller =
{
.enable = apic_ioapic_enable,
.disable = apic_ioapic_disable,
@ -30,19 +30,19 @@ hardware_intr_controller keyboard_intr_controller =
* @param param 参数
* @param regs 寄存器信息
*/
void keyboard_handler(ul irq_num, ul param, struct pt_regs *regs)
void ps2_keyboard_handler(ul irq_num, ul param, struct pt_regs *regs)
{
// 读取键盘输入的信息
unsigned char x = io_in8(PORT_KEYBOARD_DATA);
unsigned char x = io_in8(PORT_PS2_KEYBOARD_DATA);
// printk_color(ORANGE, BLACK, "key_pressed:%02x\n", x);
// 当头指针越过界时，恢复指向数组头部
if (kb_buf_ptr->ptr_head == kb_buf_ptr->buffer + keyboard_buffer_size)
if (kb_buf_ptr->ptr_head == kb_buf_ptr->buffer + ps2_keyboard_buffer_size)
kb_buf_ptr->ptr_head = kb_buf_ptr->buffer;
if (kb_buf_ptr->count >= keyboard_buffer_size)
if (kb_buf_ptr->count >= ps2_keyboard_buffer_size)
{
kwarn("Keyboard input buffer is full.");
kwarn("ps2_keyboard input buffer is full.");
return;
}
@ -54,24 +54,26 @@ void keyboard_handler(ul irq_num, ul param, struct pt_regs *regs)
* @brief 初始化键盘驱动程序的函数
*
*/
void keyboard_init()
void ps2_keyboard_init()
{
// 开启键盘中断，中断向量号为0x21，物理模式，投递至BSP处理器
apic_ioapic_write_rte(0x12, 0x21);
// ======= 初始化键盘循环队列缓冲区 ===========
// 申请键盘循环队列缓冲区的内存
kb_buf_ptr = (struct keyboard_input_buffer *)kmalloc(sizeof(struct keyboard_input_buffer), 0);
kb_buf_ptr = (struct ps2_keyboard_input_buffer *)kmalloc(sizeof(struct ps2_keyboard_input_buffer), 0);
kb_buf_ptr->ptr_head = kb_buf_ptr->buffer;
kb_buf_ptr->ptr_tail = kb_buf_ptr->buffer;
kb_buf_ptr->count = 0;
memset(kb_buf_ptr->buffer, 0, keyboard_buffer_size);
memset(kb_buf_ptr->buffer, 0, ps2_keyboard_buffer_size);
// ======== 初始化中断RTE entry ==========
entry.vector = KEYBOARD_INTR_VECTOR; // 设置中断向量号
entry.deliver_mode = IO_APIC_FIXED; // 投递模式：混合
entry.dest_mode = DEST_PHYSICAL; // 物理模式投递中断
entry.vector = PS2_KEYBOARD_INTR_VECTOR; // 设置中断向量号
entry.deliver_mode = IO_APIC_FIXED; // 投递模式：混合
entry.dest_mode = DEST_PHYSICAL; // 物理模式投递中断
entry.deliver_status = IDLE;
entry.trigger_mode = EDGE_TRIGGER; // 设置边沿触发
entry.polarity = POLARITY_HIGH; // 高电平触发
@ -84,11 +86,11 @@ void keyboard_init()
entry.destination.physical.phy_dest = 0; // 设置投递到BSP处理器
// ======== 初始化键盘控制器，写入配置值 =========
wait_keyboard_write();
io_out8(PORT_KEYBOARD_CONTROL, KEYBOARD_COMMAND_WRITE);
wait_keyboard_write();
io_out8(PORT_KEYBOARD_DATA, KEYBOARD_PARAM_INIT);
wait_keyboard_write();
wait_ps2_keyboard_write();
io_out8(PORT_PS2_KEYBOARD_CONTROL, PS2_KEYBOARD_COMMAND_WRITE);
wait_ps2_keyboard_write();
io_out8(PORT_PS2_KEYBOARD_DATA, PS2_KEYBOARD_PARAM_INIT);
wait_ps2_keyboard_write();
// 执行一百万次nop，等待键盘控制器把命令执行完毕
for (int i = 0; i < 1000; ++i)
@ -102,16 +104,17 @@ void keyboard_init()
alt_r = false;
// 注册中断处理程序
irq_register(KEYBOARD_INTR_VECTOR, &entry, &keyboard_handler, (ul)kb_buf_ptr, &keyboard_intr_controller, "ps/2 keyboard");
irq_register(PS2_KEYBOARD_INTR_VECTOR, &entry, &ps2_keyboard_handler, (ul)kb_buf_ptr, &ps2_keyboard_intr_controller, "ps/2 keyboard");
kdebug("kb registered.");
}
/**
* @brief 键盘驱动卸载函数
*
*/
void keyboard_exit()
void ps2_keyboard_exit()
{
irq_unregister(KEYBOARD_INTR_VECTOR);
irq_unregister(PS2_KEYBOARD_INTR_VECTOR);
kfree((ul *)kb_buf_ptr);
}
@ -119,11 +122,11 @@ void keyboard_exit()
* @brief 解析键盘扫描码
*
*/
void keyboard_analyze_keycode()
void ps2_keyboard_analyze_keycode()
{
bool flag_make = false;
int c = keyboard_get_scancode();
int c = ps2_keyboard_get_scancode();
// 循环队列为空
if (c == -1)
return;
@ -136,7 +139,7 @@ void keyboard_analyze_keycode()
key = PAUSE_BREAK;
// 清除缓冲区中剩下的扫描码
for (int i = 1; i < 6; ++i)
if (keyboard_get_scancode() != pause_break_scan_code[i])
if (ps2_keyboard_get_scancode() != pause_break_scan_code[i])
{
key = 0;
break;
@ -145,20 +148,20 @@ void keyboard_analyze_keycode()
else if (scancode == 0xE0) // 功能键, 有多个扫描码
{
// 获取下一个扫描码
scancode = keyboard_get_scancode();
scancode = ps2_keyboard_get_scancode();
switch (scancode)
{
case 0x2a: // print screen 按键被按下
if (keyboard_get_scancode() == 0xe0)
if (keyboard_get_scancode() == 0x37)
if (ps2_keyboard_get_scancode() == 0xe0)
if (ps2_keyboard_get_scancode() == 0x37)
{
key = PRINT_SCREEN;
flag_make = true;
}
break;
case 0xb7: // print screen 按键被松开
if (keyboard_get_scancode() == 0xe0)
if (keyboard_get_scancode() == 0xaa)
if (ps2_keyboard_get_scancode() == 0xe0)
if (ps2_keyboard_get_scancode() == 0xaa)
{
key = PRINT_SCREEN;
flag_make = false;
@ -353,13 +356,13 @@ void keyboard_analyze_keycode()
* @brief 从缓冲队列中获取键盘扫描码
*
*/
int keyboard_get_scancode()
int ps2_keyboard_get_scancode()
{
// 缓冲队列为空
if (kb_buf_ptr->count == 0)
return -1;
if (kb_buf_ptr->ptr_tail == kb_buf_ptr->buffer + keyboard_buffer_size)
if (kb_buf_ptr->ptr_tail == kb_buf_ptr->buffer + ps2_keyboard_buffer_size)
kb_buf_ptr->ptr_tail = kb_buf_ptr->buffer;
int ret = (int)(*(kb_buf_ptr->ptr_tail));

36
kernel/driver/keyboard/keyboard.h → kernel/driver/keyboard/ps2_keyboard.h
View File

@ -2,39 +2,39 @@
#include "../../common/glib.h"
#define KEYBOARD_INTR_VECTOR 0x21 // 键盘的中断向量号
#define PS2_KEYBOARD_INTR_VECTOR 0x21 // 键盘的中断向量号
// 定义键盘循环队列缓冲区大小为100bytes
#define keyboard_buffer_size 100
#define ps2_keyboard_buffer_size 100
/**
* @brief 键盘循环队列缓冲区结构体
*
*/
struct keyboard_input_buffer
struct ps2_keyboard_input_buffer
{
unsigned char *ptr_head;
unsigned char *ptr_tail;
int count;
unsigned char buffer[keyboard_buffer_size];
unsigned char buffer[ps2_keyboard_buffer_size];
};
#define PORT_KEYBOARD_DATA 0x60
#define PORT_KEYBOARD_STATUS 0x64
#define PORT_KEYBOARD_CONTROL 0x64
#define PORT_PS2_KEYBOARD_DATA 0x60
#define PORT_PS2_KEYBOARD_STATUS 0x64
#define PORT_PS2_KEYBOARD_CONTROL 0x64
#define KEYBOARD_COMMAND_WRITE 0x60 // 向键盘发送配置命令
#define KEYBOARD_COMMAND_READ 0x20 // 读取键盘的配置值
#define KEYBOARD_PARAM_INIT 0x47 // 初始化键盘控制器的配置值
#define PS2_KEYBOARD_COMMAND_WRITE 0x60 // 向键盘发送配置命令
#define PS2_KEYBOARD_COMMAND_READ 0x20 // 读取键盘的配置值
#define PS2_KEYBOARD_PARAM_INIT 0x47 // 初始化键盘控制器的配置值
// ========= 检测键盘控制器输入/输出缓冲区是否已满
#define KEYBOARD_FLAG_OUTBUF_FULL 0x01 // 键盘的输出缓冲区已满标志位
#define KEYBOARD_FLAG_INBUF_FULL 0x02 // 键盘的输入缓冲区已满标志位
#define PS2_KEYBOARD_FLAG_OUTBUF_FULL 0x01 // 键盘的输出缓冲区已满标志位
#define PS2_KEYBOARD_FLAG_INBUF_FULL 0x02 // 键盘的输入缓冲区已满标志位
// 等待向键盘控制器写入信息完成
#define wait_keyboard_write() while (io_in8(PORT_KEYBOARD_STATUS) & KEYBOARD_FLAG_INBUF_FULL)
#define wait_ps2_keyboard_write() while (io_in8(PORT_PS2_KEYBOARD_STATUS) & PS2_KEYBOARD_FLAG_INBUF_FULL)
// 等待从键盘控制器读取信息完成
#define wait_keyboard_read() while (io_in8(PORT_KEYBOARD_STATUS) & KEYBOARD_FLAG_OUTBUF_FULL)
#define wait_ps2_keyboard_read() while (io_in8(PORT_PS2_KEYBOARD_STATUS) & PS2_KEYBOARD_FLAG_OUTBUF_FULL)
// 128个按键, 每个按键包含普通按键和shift+普通按键两种状态
#define NUM_SCAN_CODES 0x80
@ -199,23 +199,23 @@ uint keycode_map_normal[NUM_SCAN_CODES*MAP_COLS] =
* @brief 初始化键盘驱动程序的函数
*
*/
void keyboard_init();
void ps2_keyboard_init();
/**
* @brief 键盘驱动卸载函数
*
*/
void keyboard_exit();
void ps2_keyboard_exit();
/**
* @brief 解析键盘扫描码
*
*/
void keyboard_analyze_keycode();
void ps2_keyboard_analyze_keycode();
/**
* @brief 从缓冲队列中获取键盘扫描码
* @return 键盘扫描码
* 若缓冲队列为空则返回-1
*/
int keyboard_get_scancode();
int ps2_keyboard_get_scancode();

372
kernel/driver/mouse/mouse.c
View File

@ -1,372 +0,0 @@
#include "mouse.h"
#include "../interrupt/apic/apic.h"
#include "../../mm/mm.h"
#include "../../mm/slab.h"
#include "../../common/printk.h"
#include "../../common/kprint.h"
static struct mouse_input_buffer *mouse_buf_ptr = NULL;
static int c = 0;
struct apic_IO_APIC_RTE_entry mouse_entry;
static unsigned char mouse_id = 0;
struct mouse_packet_3bytes pak;
static mouse_count = 0;
/**
* @brief 清空缓冲区
*
*/
static void mouse_clear_buf()
{
mouse_buf_ptr->ptr_head = mouse_buf_ptr->buffer;
mouse_buf_ptr->ptr_tail = mouse_buf_ptr->buffer;
mouse_buf_ptr->count = 0;
memset(mouse_buf_ptr->buffer, 0, mouse_buffer_size);
}
/**
* @brief 从缓冲队列中获取鼠标数据字节
* @return 鼠标数据包的字节
* 若缓冲队列为空则返回-1024
*/
static int mouse_get_scancode()
{
// 缓冲队列为空
if (mouse_buf_ptr->count == 0)
while (!mouse_buf_ptr->count)
nop();
if (mouse_buf_ptr->ptr_tail == mouse_buf_ptr->buffer + mouse_buffer_size)
mouse_buf_ptr->ptr_tail = mouse_buf_ptr->buffer;
int ret = (int)((char)(*(mouse_buf_ptr->ptr_tail)));
--(mouse_buf_ptr->count);
++(mouse_buf_ptr->ptr_tail);
// printk("count=%d", mouse_buf_ptr->count);
return ret;
}
/**
* @brief 鼠标中断处理函数（中断上半部）
* 将数据存入缓冲区
* @param irq_num 中断向量号
* @param param 参数
* @param regs 寄存器信息
*/
void mouse_handler(ul irq_num, ul param, struct pt_regs *regs)
{
// 读取鼠标输入的信息
unsigned char x = io_in8(PORT_KEYBOARD_DATA);
// 当头指针越过界时，恢复指向数组头部
if (mouse_buf_ptr->ptr_head == mouse_buf_ptr->buffer + mouse_buffer_size)
mouse_buf_ptr->ptr_head = mouse_buf_ptr->buffer;
if (mouse_buf_ptr->count >= mouse_buffer_size)
{
kwarn("mouse input buffer is full.");
return;
}
*mouse_buf_ptr->ptr_head = x;
++(mouse_buf_ptr->count);
++(mouse_buf_ptr->ptr_head);
printk("c=%d\tval = %d\n", ++c, x);
}
hardware_intr_controller mouse_intr_controller =
{
.enable = apic_ioapic_enable,
.disable = apic_ioapic_disable,
.install = apic_ioapic_install,
.uninstall = apic_ioapic_uninstall,
.ack = apic_ioapic_edge_ack,
};
/**
* @brief 从键盘控制器读取mouse id
*
* @return unsigned char 鼠标id
*/
static unsigned char mouse_get_mouse_ID()
{
// 读取鼠标的ID
io_out8(PORT_KEYBOARD_CONTROL, KEYBOARD_COMMAND_SEND_TO_MOUSE);
wait_keyboard_write();
io_out8(PORT_KEYBOARD_DATA, MOUSE_GET_ID);
wait_keyboard_write();
mouse_id = io_in8(PORT_KEYBOARD_DATA);
for (int i = 0; i < 1000; i++)
for (int j = 0; j < 1000; j++)
nop();
return mouse_id;
}
/**
* @brief 设置鼠标采样率
*
* @param hz 采样率
*/
int mouse_set_sample_rate(unsigned int hz)
{
switch (hz)
{
case 10:
case 20:
case 40:
case 60:
case 80:
case 100:
case 200:
wait_keyboard_write();
io_out8(PORT_KEYBOARD_CONTROL, KEYBOARD_COMMAND_SEND_TO_MOUSE);
wait_keyboard_write();
io_out8(PORT_KEYBOARD_DATA, MOUSE_SET_SAMPLING_RATE);
wait_keyboard_write();
for (int i = 0; i < 1000; i++)
for (int j = 0; j < 1000; j++)
nop();
io_out8(PORT_KEYBOARD_CONTROL, KEYBOARD_COMMAND_SEND_TO_MOUSE);
wait_keyboard_write();
io_out8(PORT_KEYBOARD_DATA, hz);
for (int i = 0; i < 1000; i++)
for (int j = 0; j < 1000; j++)
nop();
wait_keyboard_write();
break;
default:
return EINVALID_ARGUMENT;
break;
}
return SUCCESS;
}
/**
* @brief 使鼠标支持滚轮
* 该模式下，鼠标ID=3
*/
static int mouse_enable_scroll_wheel()
{
if (mouse_id == 3)
return SUCCESS;
mouse_set_sample_rate(200);
mouse_set_sample_rate(100);
mouse_set_sample_rate(80);
if (mouse_get_mouse_ID() != 3)
{
kerror("Cannot set mouse ID to 3");
return EFAIL;
}
// 清空缓冲区，防止解析时产生错误
mouse_clear_buf();
return SUCCESS;
}
/**
* @brief 使鼠标支持5键
* 该模式下ID=4
*/
static int mouse_enable_5keys()
{
if (mouse_id == 4)
return SUCCESS;
// 根据规范，应当先启用ID=3
mouse_enable_scroll_wheel();
mouse_set_sample_rate(200);
mouse_set_sample_rate(200);
mouse_set_sample_rate(80);
if (mouse_get_mouse_ID() != 4)
{
kerror("Cannot set mouse ID to 4");
return EFAIL;
}
// 清空缓冲区，防止解析时产生错误
mouse_clear_buf();
return SUCCESS;
}
/**
* @brief 初始化鼠标驱动程序
*
*/
void mouse_init()
{
// 初始化鼠标读入队列缓冲区
mouse_buf_ptr = (struct mouse_input_buffer *)kmalloc(sizeof(struct mouse_input_buffer), 0);
mouse_buf_ptr->ptr_head = mouse_buf_ptr->buffer;
mouse_buf_ptr->ptr_tail = mouse_buf_ptr->buffer;
mouse_buf_ptr->count = 0;
memset(mouse_buf_ptr->buffer, 0, mouse_buffer_size);
// ======== 初始化中断RTE entry ==========
mouse_entry.vector = MOUSE_INTR_VECTOR; // 设置中断向量号
mouse_entry.deliver_mode = IO_APIC_FIXED; // 投递模式：混合
mouse_entry.dest_mode = DEST_PHYSICAL; // 物理模式投递中断
mouse_entry.deliver_status = IDLE;
mouse_entry.trigger_mode = EDGE_TRIGGER; // 设置边沿触发
mouse_entry.polarity = POLARITY_HIGH; // 高电平触发
mouse_entry.remote_IRR = IRR_RESET;
mouse_entry.mask = MASKED;
mouse_entry.reserved = 0;
mouse_entry.destination.physical.reserved1 = 0;
mouse_entry.destination.physical.reserved2 = 0;
mouse_entry.destination.physical.phy_dest = 0; // 设置投递到BSP处理器
// 注册中断处理程序
irq_register(MOUSE_INTR_VECTOR, &mouse_entry, &mouse_handler, (ul)mouse_buf_ptr, &mouse_intr_controller, "ps/2 mouse");
wait_keyboard_write();
io_out8(PORT_KEYBOARD_CONTROL, KEYBOARD_COMMAND_ENABLE_MOUSE_PORT); // 开启鼠标端口
for (int i = 0; i < 1000; i++)
for (int j = 0; j < 1000; j++)
nop();
wait_keyboard_write();
io_out8(PORT_KEYBOARD_CONTROL, KEYBOARD_COMMAND_SEND_TO_MOUSE);
wait_keyboard_write();
io_out8(PORT_KEYBOARD_DATA, MOUSE_ENABLE); // 允许鼠标设备发送数据包
for (int i = 0; i < 1000; i++)
for (int j = 0; j < 1000; j++)
nop();
wait_keyboard_write();
io_out8(PORT_KEYBOARD_CONTROL, KEYBOARD_COMMAND_WRITE);
wait_keyboard_write();
io_out8(PORT_KEYBOARD_DATA, KEYBOARD_PARAM_INIT); // 设置键盘控制器
for (int i = 0; i < 1000; i++)
for (int j = 0; j < 1000; j++)
nop();
wait_keyboard_write();
// mouse_enable_5keys();
//mouse_get_mouse_ID();
//mouse_set_sample_rate(100);
mouse_clear_buf();
kdebug("mouse ID:%d", mouse_id);
c = 0;
}
/**
* @brief 卸载鼠标驱动程序
*
*/
void mouse_exit()
{
irq_unregister(MOUSE_INTR_VECTOR);
kfree((ul *)mouse_buf_ptr);
}
/**
* @brief 获取鼠标数据包
*
* @param packet 数据包的返回值
* @return int 错误码
*/
int mouse_get_packet(void *packet)
{
// if (mouse_buf_ptr->count != 0)
// kdebug("at get packet: count=%d", mouse_buf_ptr->count);
int code = 0;
switch (mouse_id)
{
case 0: // 3bytes 数据包
if (mouse_buf_ptr->count < 4)
return EFAIL;
do
{
code = mouse_get_scancode();
((struct mouse_packet_3bytes *)packet)->byte0 = (unsigned char)code;
} while (code == -1024);
do
{
code = mouse_get_scancode();
((struct mouse_packet_3bytes *)packet)->movement_x = (char)code;
} while (code == -1024);
do
{
code = mouse_get_scancode();
((struct mouse_packet_3bytes *)packet)->movement_y = (char)code;
} while (code == -1024);
return SUCCESS;
break;
case 3: // 4bytes数据包
case 4:
if (mouse_buf_ptr->count < 5)
return EFAIL;
do
{
code = mouse_get_scancode();
((struct mouse_packet_4bytes *)packet)->byte0 = (unsigned char)code;
} while (code == -1024);
do
{
code = mouse_get_scancode();
((struct mouse_packet_4bytes *)packet)->movement_x = (char)code;
} while (code == -1024);
do
{
code = mouse_get_scancode();
((struct mouse_packet_4bytes *)packet)->movement_y = (char)code;
} while (code == -1024);
do
{
code = mouse_get_scancode();
((struct mouse_packet_4bytes *)packet)->byte3 = (char)code;
} while (code == -1024);
return SUCCESS;
break;
default: // Should not reach here
kBUG("mouse_get_packet(): Invalid mouse_id!");
return EFAIL;
break;
}
return SUCCESS;
}
void analyze_mousecode()
{
if(!mouse_buf_ptr->count)
return;
else printk_color(ORANGE, BLACK, "COUNT=%d\n", mouse_buf_ptr->count);
unsigned char x = mouse_get_scancode();
switch (mouse_count)
{
case 0:
mouse_count++;
break;
case 1:
pak.byte0 = x;
mouse_count++;
break;
case 2:
pak.movement_x = (char)x;
mouse_count++;
break;
case 3:
pak.movement_y = (char)x;
mouse_count = 1;
printk_color(RED, GREEN, "(M:%02x,X:%3d,Y:%3d)\tcount=%d\n", pak.byte0, pak.movement_x, pak.movement_y, mouse_buf_ptr->count);
break;
default:
break;
}
}

384
kernel/driver/mouse/ps2_mouse.c Normal file
View File

@ -0,0 +1,384 @@
#include "ps2_mouse.h"
#include "../interrupt/apic/apic.h"
#include "../../mm/mm.h"
#include "../../mm/slab.h"
#include "../../common/printk.h"
#include "../../common/kprint.h"
static struct ps2_mouse_input_buffer *ps2_mouse_buf_ptr = NULL;
static int c = 0;
struct apic_IO_APIC_RTE_entry ps2_mouse_entry;
static unsigned char ps2_mouse_id = 0;
struct ps2_mouse_packet_3bytes pak;
static int ps2_mouse_count = 0;
/**
* @brief 清空缓冲区
*
*/
static void ps2_mouse_clear_buf()
{
ps2_mouse_buf_ptr->ptr_head = ps2_mouse_buf_ptr->buffer;
ps2_mouse_buf_ptr->ptr_tail = ps2_mouse_buf_ptr->buffer;
ps2_mouse_buf_ptr->count = 0;
memset(ps2_mouse_buf_ptr->buffer, 0, ps2_mouse_buffer_size);
}
/**
* @brief 从缓冲队列中获取鼠标数据字节
* @return 鼠标数据包的字节
* 若缓冲队列为空则返回-1024
*/
static int ps2_mouse_get_scancode()
{
// 缓冲队列为空
if (ps2_mouse_buf_ptr->count == 0)
while (!ps2_mouse_buf_ptr->count)
nop();
if (ps2_mouse_buf_ptr->ptr_tail == ps2_mouse_buf_ptr->buffer + ps2_mouse_buffer_size)
ps2_mouse_buf_ptr->ptr_tail = ps2_mouse_buf_ptr->buffer;
int ret = (int)((char)(*(ps2_mouse_buf_ptr->ptr_tail)));
--(ps2_mouse_buf_ptr->count);
++(ps2_mouse_buf_ptr->ptr_tail);
// printk("count=%d", ps2_mouse_buf_ptr->count);
return ret;
}
/**
* @brief 鼠标中断处理函数（中断上半部）
* 将数据存入缓冲区
* @param irq_num 中断向量号
* @param param 参数
* @param regs 寄存器信息
*/
void ps2_mouse_handler(ul irq_num, ul param, struct pt_regs *regs)
{
// 读取鼠标输入的信息
unsigned char x = io_in8(PORT_KEYBOARD_DATA);
// 当头指针越过界时，恢复指向数组头部
if (ps2_mouse_buf_ptr->ptr_head == ps2_mouse_buf_ptr->buffer + ps2_mouse_buffer_size)
ps2_mouse_buf_ptr->ptr_head = ps2_mouse_buf_ptr->buffer;
if (ps2_mouse_buf_ptr->count >= ps2_mouse_buffer_size)
{
kwarn("ps2_mouse input buffer is full.");
return;
}
*ps2_mouse_buf_ptr->ptr_head = x;
++(ps2_mouse_buf_ptr->count);
++(ps2_mouse_buf_ptr->ptr_head);
printk("c=%d\tval = %d\n", ++c, x);
}
hardware_intr_controller ps2_mouse_intr_controller =
{
.enable = apic_ioapic_enable,
.disable = apic_ioapic_disable,
.install = apic_ioapic_install,
.uninstall = apic_ioapic_uninstall,
.ack = apic_ioapic_edge_ack,
};
/**
* @brief 从键盘控制器读取ps2_mouse id
*
* @return unsigned char 鼠标id
*/
static unsigned char ps2_mouse_get_mouse_ID()
{
// 读取鼠标的ID
io_out8(PORT_KEYBOARD_CONTROL, KEYBOARD_COMMAND_SEND_TO_PS2_MOUSE);
wait_keyboard_write();
io_out8(PORT_KEYBOARD_DATA, PS2_MOUSE_GET_ID);
wait_keyboard_write();
ps2_mouse_id = io_in8(PORT_KEYBOARD_DATA);
wait_keyboard_write();
io_in8(PORT_KEYBOARD_DATA);
for (int i = 0; i < 1000; i++)
for (int j = 0; j < 1000; j++)
nop();
return ps2_mouse_id;
}
/**
* @brief 设置鼠标采样率
*
* @param hz 采样率
*/
int ps2_mouse_set_sample_rate(unsigned int hz)
{
switch (hz)
{
case 10:
case 20:
case 40:
case 60:
case 80:
case 100:
case 200:
wait_keyboard_write();
io_out8(PORT_KEYBOARD_CONTROL, KEYBOARD_COMMAND_SEND_TO_PS2_MOUSE);
wait_keyboard_write();
io_out8(PORT_KEYBOARD_DATA, PS2_MOUSE_SET_SAMPLING_RATE);
wait_keyboard_write();
io_in8(PORT_KEYBOARD_DATA);
for (int i = 0; i < 1000; i++)
for (int j = 0; j < 1000; j++)
nop();
io_out8(PORT_KEYBOARD_CONTROL, KEYBOARD_COMMAND_SEND_TO_PS2_MOUSE);
wait_keyboard_write();
io_out8(PORT_KEYBOARD_DATA, hz);
for (int i = 0; i < 1000; i++)
for (int j = 0; j < 1000; j++)
nop();
wait_keyboard_write();
io_in8(PORT_KEYBOARD_DATA);
break;
default:
return EINVALID_ARGUMENT;
break;
}
return SUCCESS;
}
/**
* @brief 使鼠标支持滚轮
* 该模式下，鼠标ID=3
*/
static int ps2_mouse_enable_scroll_wheel()
{
if (ps2_mouse_id == 3)
return SUCCESS;
ps2_mouse_set_sample_rate(200);
ps2_mouse_set_sample_rate(100);
ps2_mouse_set_sample_rate(80);
if (ps2_mouse_get_mouse_ID() != 3)
{
kerror("Cannot set mouse ID to 3");
return EFAIL;
}
// 清空缓冲区，防止解析时产生错误
ps2_mouse_clear_buf();
return SUCCESS;
}
/**
* @brief 使鼠标支持5键
* 该模式下ID=4
*/
static int ps2_mouse_enable_5keys()
{
if (ps2_mouse_id == 4)
return SUCCESS;
// 根据规范，应当先启用ID=3
ps2_mouse_enable_scroll_wheel();
ps2_mouse_set_sample_rate(200);
ps2_mouse_set_sample_rate(200);
ps2_mouse_set_sample_rate(80);
if (ps2_mouse_get_mouse_ID() != 4)
{
kerror("Cannot set ps2_mouse ID to 4");
return EFAIL;
}
// 清空缓冲区，防止解析时产生错误
ps2_mouse_clear_buf();
return SUCCESS;
}
/**
* @brief 初始化鼠标驱动程序
*
*/
void ps2_mouse_init()
{
// 初始化鼠标读入队列缓冲区
ps2_mouse_buf_ptr = (struct ps2_mouse_input_buffer *)kmalloc(sizeof(struct ps2_mouse_input_buffer), 0);
ps2_mouse_buf_ptr->ptr_head = ps2_mouse_buf_ptr->buffer;
ps2_mouse_buf_ptr->ptr_tail = ps2_mouse_buf_ptr->buffer;
ps2_mouse_buf_ptr->count = 0;
memset(ps2_mouse_buf_ptr->buffer, 0, ps2_mouse_buffer_size);
// ======== 初始化中断RTE entry ==========
ps2_mouse_entry.vector = PS2_MOUSE_INTR_VECTOR; // 设置中断向量号
ps2_mouse_entry.deliver_mode = IO_APIC_FIXED; // 投递模式：混合
ps2_mouse_entry.dest_mode = DEST_PHYSICAL; // 物理模式投递中断
ps2_mouse_entry.deliver_status = IDLE;
ps2_mouse_entry.trigger_mode = EDGE_TRIGGER; // 设置边沿触发
ps2_mouse_entry.polarity = POLARITY_HIGH; // 高电平触发
ps2_mouse_entry.remote_IRR = IRR_RESET;
ps2_mouse_entry.mask = MASKED;
ps2_mouse_entry.reserved = 0;
ps2_mouse_entry.destination.physical.reserved1 = 0;
ps2_mouse_entry.destination.physical.reserved2 = 0;
ps2_mouse_entry.destination.physical.phy_dest = 0; // 设置投递到BSP处理器
// 注册中断处理程序
irq_register(PS2_MOUSE_INTR_VECTOR, &ps2_mouse_entry, &ps2_mouse_handler, (ul)ps2_mouse_buf_ptr, &ps2_mouse_intr_controller, "ps/2 mouse");
wait_keyboard_write();
io_out8(PORT_KEYBOARD_CONTROL, KEYBOARD_COMMAND_ENABLE_PS2_MOUSE_PORT); // 开启鼠标端口
for (int i = 0; i < 1000; i++)
for (int j = 0; j < 1000; j++)
nop();
wait_keyboard_write();
io_in8(PORT_KEYBOARD_DATA);
io_out8(PORT_KEYBOARD_CONTROL, KEYBOARD_COMMAND_SEND_TO_PS2_MOUSE);
wait_keyboard_write();
io_out8(PORT_KEYBOARD_DATA, PS2_MOUSE_ENABLE); // 允许鼠标设备发送数据包
wait_keyboard_write();
io_in8(PORT_KEYBOARD_DATA);
for (int i = 0; i < 1000; i++)
for (int j = 0; j < 1000; j++)
nop();
wait_keyboard_write();
io_out8(PORT_KEYBOARD_CONTROL, KEYBOARD_COMMAND_WRITE);
wait_keyboard_write();
io_out8(PORT_KEYBOARD_DATA, KEYBOARD_PARAM_INIT); // 设置键盘控制器
wait_keyboard_write();
io_in8(PORT_KEYBOARD_DATA);
for (int i = 0; i < 1000; i++)
for (int j = 0; j < 1000; j++)
nop();
wait_keyboard_write();
//ps2_mouse_enable_5keys();
ps2_mouse_get_mouse_ID();
ps2_mouse_set_sample_rate(30);
ps2_mouse_clear_buf();
kdebug("ps2_mouse ID:%d", ps2_mouse_id);
c = 0;
//ps2_mouse_count = 1;
}
/**
* @brief 卸载鼠标驱动程序
*
*/
void ps2_mouse_exit()
{
irq_unregister(PS2_MOUSE_INTR_VECTOR);
kfree((ul *)ps2_mouse_buf_ptr);
}
/**
* @brief 获取鼠标数据包
*
* @param packet 数据包的返回值
* @return int 错误码
*/
int ps2_mouse_get_packet(void *packet)
{
// if (ps2_mouse_buf_ptr->count != 0)
// kdebug("at get packet: count=%d", ps2_mouse_buf_ptr->count);
int code = 0;
switch (ps2_mouse_id)
{
case 0: // 3bytes 数据包
if (ps2_mouse_buf_ptr->count < 4)
return EFAIL;
do
{
code = ps2_mouse_get_scancode();
((struct ps2_mouse_packet_3bytes *)packet)->byte0 = (unsigned char)code;
} while (code == -1024);
do
{
code = ps2_mouse_get_scancode();
((struct ps2_mouse_packet_3bytes *)packet)->movement_x = (char)code;
} while (code == -1024);
do
{
code = ps2_mouse_get_scancode();
((struct ps2_mouse_packet_3bytes *)packet)->movement_y = (char)code;
} while (code == -1024);
return SUCCESS;
break;
case 3: // 4bytes数据包
case 4:
if (ps2_mouse_buf_ptr->count < 5)
return EFAIL;
do
{
code = ps2_mouse_get_scancode();
((struct ps2_mouse_packet_4bytes *)packet)->byte0 = (unsigned char)code;
} while (code == -1024);
do
{
code = ps2_mouse_get_scancode();
((struct ps2_mouse_packet_4bytes *)packet)->movement_x = (char)code;
} while (code == -1024);
do
{
code = ps2_mouse_get_scancode();
((struct ps2_mouse_packet_4bytes *)packet)->movement_y = (char)code;
} while (code == -1024);
do
{
code = ps2_mouse_get_scancode();
((struct ps2_mouse_packet_4bytes *)packet)->byte3 = (char)code;
} while (code == -1024);
return SUCCESS;
break;
default: // Should not reach here
kBUG("ps2_mouse_get_packet(): Invalid ps2_mouse_id!");
return EFAIL;
break;
}
return SUCCESS;
}
void analyze_mousecode()
{
if(!ps2_mouse_buf_ptr->count)
return;
else printk_color(ORANGE, BLACK, "COUNT=%d\n", ps2_mouse_buf_ptr->count);
unsigned char x = ps2_mouse_get_scancode();
switch (ps2_mouse_count)
{
case 0:
ps2_mouse_count++;
break;
case 1:
pak.byte0 = x;
ps2_mouse_count++;
break;
case 2:
pak.movement_x = (char)x;
ps2_mouse_count++;
break;
case 3:
pak.movement_y = (char)x;
ps2_mouse_count = 1;
printk_color(RED, GREEN, "(M:%02x,X:%3d,Y:%3d)\tcount=%d\n", pak.byte0, pak.movement_x, pak.movement_y, ps2_mouse_buf_ptr->count);
break;
default:
break;
}
}

38
kernel/driver/mouse/mouse.h → kernel/driver/mouse/ps2_mouse.h
View File

@ -2,21 +2,21 @@
#include "../../common/glib.h"
#define MOUSE_INTR_VECTOR 0x2c // 鼠标的中断向量号
#define PS2_MOUSE_INTR_VECTOR 0x2c // 鼠标的中断向量号
#define KEYBOARD_COMMAND_SEND_TO_MOUSE 0xd4 // 键盘控制器向鼠标设备发送数据的命令
#define KEYBOARD_COMMAND_SEND_TO_PS2_MOUSE 0xd4 // 键盘控制器向鼠标设备发送数据的命令
#define MOUSE_GET_ID 0xf2 // 获取鼠标的ID
#define MOUSE_SET_SAMPLING_RATE 0xf3 // 设置鼠标的采样率
#define MOUSE_ENABLE 0xf4 // 允许鼠标设备发送数据包
#define MOUSE_DISABLE 0xf5 // 禁止鼠标设备发送数据包
#define MOUSE_SET_DEFAULT_SAMPLING_RATE 0xf6 // 设置使用默认采样率100hz，分辨率4px/mm
#define MOUSE_RESEND_LAST_PACKET 0xfe // 重新发送上一条数据包
#define MOUSE_RESET 0xff // 重启鼠标
#define PS2_MOUSE_GET_ID 0xf2 // 获取鼠标的ID
#define PS2_MOUSE_SET_SAMPLING_RATE 0xf3 // 设置鼠标的采样率
#define PS2_MOUSE_ENABLE 0xf4 // 允许鼠标设备发送数据包
#define PS2_MOUSE_DISABLE 0xf5 // 禁止鼠标设备发送数据包
#define PS2_MOUSE_SET_DEFAULT_SAMPLING_RATE 0xf6 // 设置使用默认采样率100hz，分辨率4px/mm
#define PS2_MOUSE_RESEND_LAST_PACKET 0xfe // 重新发送上一条数据包
#define PS2_MOUSE_RESET 0xff // 重启鼠标
#define KEYBOARD_COMMAND_ENABLE_MOUSE_PORT 0xa8 // 通过键盘控制器开启鼠标端口的命令
#define KEYBOARD_COMMAND_ENABLE_PS2_MOUSE_PORT 0xa8 // 通过键盘控制器开启鼠标端口的命令
#define mouse_buffer_size 120
#define ps2_mouse_buffer_size 360
#define PORT_KEYBOARD_DATA 0x60
#define PORT_KEYBOARD_STATUS 0x64
@ -42,7 +42,7 @@
// =========== 定义鼠标数据包 ==============
// 其中，x、y方向的移动值用9位二进制补码表示（算上byte0中的符号位）
// 目前只用到8位，（精度要求没那么高）
struct mouse_packet_3bytes
struct ps2_mouse_packet_3bytes
{
unsigned char byte0; // 第0字节
@ -53,7 +53,7 @@ struct mouse_packet_3bytes
};
// ID = 3 或 ID = 4时，采用4bytes数据包
struct mouse_packet_4bytes
struct ps2_mouse_packet_4bytes
{
unsigned char byte0; // 第0字节
// [y溢出，x溢出，y符号位， x符号位， 1， 鼠标中键， 鼠标右键，鼠标左键]
@ -71,32 +71,32 @@ struct mouse_packet_4bytes
* @brief 键盘循环队列缓冲区结构体
*
*/
struct mouse_input_buffer
struct ps2_mouse_input_buffer
{
unsigned char *ptr_head;
unsigned char *ptr_tail;
int count;
unsigned char buffer[mouse_buffer_size];
unsigned char buffer[ps2_mouse_buffer_size];
};
/**
* @brief 初始化鼠标驱动程序
*
*/
void mouse_init();
void ps2_mouse_init();
/**
* @brief 卸载鼠标驱动程序
*
*/
void mouse_exit();
void ps2_mouse_exit();
/**
* @brief 设置鼠标采样率
*
* @param hz 采样率
*/
int mouse_set_sample_rate(unsigned int hz);
int ps2_mouse_set_sample_rate(unsigned int hz);
/**
* @brief 获取鼠标数据包
@ -104,5 +104,5 @@ int mouse_set_sample_rate(unsigned int hz);
* @param packet 数据包的返回值
* @return int 错误码
*/
int mouse_get_packet(void *packet);
int ps2_mouse_get_packet(void *packet);
void analyze_mousecode();

24
kernel/main.c
View File

@ -15,8 +15,8 @@
#include "driver/multiboot2/multiboot2.h"
#include "driver/acpi/acpi.h"
#include "driver/keyboard/keyboard.h"
#include "driver/mouse/mouse.h"
#include "driver/keyboard/ps2_keyboard.h"
#include "driver/mouse/ps2_mouse.h"
unsigned int *FR_address = (unsigned int *)0xb8000; //帧缓存区的地址
@ -162,8 +162,8 @@ void system_initialize()
syscall_init();
cpu_init();
keyboard_init();
mouse_init();
ps2_keyboard_init();
ps2_mouse_init();
// test_slab();
// test_mm();
@ -180,27 +180,29 @@ void Start_Kernel(void)
// show_welcome();
// test_mm();
/*
while (1)
{
keyboard_analyze_keycode();
struct mouse_packet_3bytes packet = {0};
//struct mouse_packet_4bytes packet = {0};
ps2_keyboard_analyze_keycode();
struct ps2_mouse_packet_3bytes packet = {0};
//struct ps2_mouse_packet_4bytes packet = {0};
int errcode = 0;
errcode = mouse_get_packet(&packet);
errcode = ps2_mouse_get_packet(&packet);
if(errcode == 0)
{
printk_color(GREEN, BLACK, " (Mouse: byte0:%d, x:%3d, y:%3d)\n", packet.byte0, packet.movement_x, packet.movement_y);
//printk_color(GREEN, BLACK, " (Mouse: byte0:%d, x:%3d, y:%3d, byte3:%3d)\n", packet.byte0, packet.movement_x, packet.movement_y, (unsigned char)packet.byte3);
}
}
*/
/*
while (1)
{
keyboard_analyze_keycode();
analyze_mousecode();
}
*/
while (1)
;
}

1
kernel/mm/mm.h
View File

@ -39,6 +39,7 @@
#define SPECIAL_MEMOEY_MAPPING_VIRT_ADDR_BASE 0xffff800000000000UL
#define FRAME_BUFFER_MAPPING_OFFSET 0x3000000UL
#define ACPI_RSDT_MAPPING_OFFSET 0x7000000UL
#define ACPI_XSDT_MAPPING_OFFSET 0x9000000UL
#define IO_APIC_MAPPING_OFFSET 0xfec00000UL
#define LOCAL_APIC_MAPPING_OFFSET 0xfee00000UL
// ===== 内存区域属性 =====

2
run.sh
View File

@ -93,7 +93,7 @@ if [ $flag_can_run -eq 1 ]; then
bochs -q -f ${bochsrc} -rc ./tools/bochsinit
else
qemu-system-x86_64 -cdrom ${iso} -m 512M \
-monitor telnet::2333,server,nowait -serial stdio -s
-monitor telnet::2333,server,nowait -serial stdio -s -cpu IvyBridge --enable-kvm
fi
else
echo "不满足运行条件"