🆕 鼠标驱动(有bug,还不能用)

This commit is contained in:
fslongjin 2022-03-17 20:51:14 +08:00
parent 95dc53bda8
commit b3cbd3caa2
8 changed files with 455 additions and 10 deletions

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@ -17,7 +17,8 @@
"multiboot2.h": "c",
"kprint.h": "c",
"8259a.h": "c",
"ptrace.h": "c"
"ptrace.h": "c",
"mouse.h": "c"
},
"C_Cpp.errorSquiggles": "Enabled"
}

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@ -17,13 +17,12 @@ ASFLAGS := --64
all: kernel
objcopy -I elf64-x86-64 -S -R ".comment" -R ".eh_frame" -O elf64-x86-64 kernel ../bin/kernel/kernel.elf
# cp 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
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
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/acpi/acpi.o driver/interrupt/pic.o driver/keyboard/keyboard.o driver/mouse/mouse.o \
-T link.lds
head.o: head.S
@ -89,5 +88,9 @@ acpi.o: driver/acpi/acpi.c
keyboard.o: driver/keyboard/keyboard.c
gcc $(CFLAGS) -c driver/keyboard/keyboard.c -o driver/keyboard/keyboard.o
mouse.o: driver/mouse/mouse.c
gcc $(CFLAGS) -c driver/mouse/mouse.c -o driver/mouse/mouse.o
clean:
rm -rf $(GARBAGE)

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@ -33,7 +33,7 @@ hardware_intr_controller keyboard_intr_controller =
void keyboard_handler(ul irq_num, ul param, struct pt_regs *regs)
{
// 读取键盘输入的信息
unsigned x = io_in8(0x60);
unsigned char x = io_in8(PORT_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
@ -69,7 +69,7 @@ void keyboard_init()
// ======== 初始化中断RTE entry ==========
entry.vector = 0x21; // 设置中断向量号
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.deliver_status = IDLE;
@ -102,7 +102,7 @@ void keyboard_init()
alt_r = false;
// 注册中断处理程序
irq_register(0x21, &entry, &keyboard_handler, (ul)kb_buf_ptr, &keyboard_intr_controller, "ps/2 keyboard");
irq_register(KEYBOARD_INTR_VECTOR, &entry, &keyboard_handler, (ul)kb_buf_ptr, &keyboard_intr_controller, "ps/2 keyboard");
}
/**
@ -111,7 +111,7 @@ void keyboard_init()
*/
void keyboard_exit()
{
irq_unregister(0x21);
irq_unregister(KEYBOARD_INTR_VECTOR);
kfree((ul *)kb_buf_ptr);
}

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@ -2,6 +2,8 @@
#include "../../common/glib.h"
#define 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
@ -25,7 +27,7 @@ struct keyboard_input_buffer
#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
// ========= 检测键盘输入/输出缓冲区是否已满
// ========= 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

315
kernel/driver/mouse/mouse.c Normal file
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@ -0,0 +1,315 @@
#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 entry;
static unsigned char mouse_id = 0;
/**
* @brief
*
*/
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
* @return
* -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
*
* @param irq_num
* @param param
* @param regs
*/
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\n", ++c);
}
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 mouse id
*
* @return unsigned char 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);
return mouse_id;
}
/**
* @brief
*
* @param hz
*/
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();
io_out8(PORT_KEYBOARD_CONTROL, KEYBOARD_COMMAND_SEND_TO_MOUSE);
wait_keyboard_write();
io_out8(PORT_KEYBOARD_DATA, hz);
wait_keyboard_write();
break;
default:
return EINVALID_ARGUMENT;
break;
}
return SUCCESS;
}
/**
* @brief 使
* 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5
* 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
*
*/
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 ==========
entry.vector = MOUSE_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
entry.remote_IRR = IRR_RESET;
entry.mask = MASKED;
entry.reserved = 0;
entry.destination.physical.reserved1 = 0;
entry.destination.physical.reserved2 = 0;
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, &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
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
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();
//mouse_enable_5keys();
mouse_get_mouse_ID();
kdebug("mouse ID:%d", mouse_id);
c = 0;
}
/**
* @brief
*
*/
void mouse_exit()
{
irq_unregister(MOUSE_INTR_VECTOR);
kfree((ul *)mouse_buf_ptr);
}
/**
* @brief
*
* @param packet
* @return int
*/
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 < 3)
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 < 4)
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;
}

107
kernel/driver/mouse/mouse.h Normal file
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@ -0,0 +1,107 @@
#pragma once
#include "../../common/glib.h"
#define 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 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 KEYBOARD_COMMAND_ENABLE_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 PORT_KEYBOARD_DATA 0x60
#define PORT_KEYBOARD_STATUS 0x64
#define PORT_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
// ========= 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
// 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)
// 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 SUCCESS 0
#define EINVALID_ARGUMENT -1
#define EFAIL -2
// =========== 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
{
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]
char movement_x;
char movement_y;
};
// ID = 3 或 ID = 4时采用4bytes数据包
struct 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]
char movement_x;
char movement_y;
char byte3; // 当鼠标ID=3时表示z移动值
// 当鼠标ID=4时表示[0, 0, 鼠标第5键, 鼠标第4键, Z3, Z2, Z1, Z0]
// 其中,[Z3,Z0]表示鼠标滚轮滚动方向
// Z3~Z0: 0:无滚动, 1:垂直向上滚动, F:垂直向下滚动, 2:水平向右滚动, E:水平向左滚动
};
/**
* @brief
*
*/
struct mouse_input_buffer
{
unsigned char *ptr_head;
unsigned char *ptr_tail;
int count;
unsigned char buffer[mouse_buffer_size];
};
/**
* @brief
*
*/
void mouse_init();
/**
* @brief
*
*/
void mouse_exit();
/**
* @brief
*
* @param hz
*/
int mouse_set_sample_rate(unsigned int hz);
/**
* @brief
*
* @param packet
* @return int
*/
int mouse_get_packet(void *packet);

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@ -59,7 +59,7 @@ extern void do_IRQ(struct pt_regs *regs, ul number);
41 Generic
42 Generic
43 HPET timer 2
44 HPET timer 3
44 HPET timer 3 / mouse
45 FERR#
46 SATA primary
47 SATA secondary

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@ -16,6 +16,7 @@
#include "driver/multiboot2/multiboot2.h"
#include "driver/acpi/acpi.h"
#include "driver/keyboard/keyboard.h"
#include "driver/mouse/mouse.h"
unsigned int *FR_address = (unsigned int *)0xb8000; //帧缓存区的地址
@ -162,6 +163,7 @@ void system_initialize()
cpu_init();
keyboard_init();
mouse_init();
// test_slab();
// test_mm();
@ -178,8 +180,23 @@ 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};
int errcode = 0;
errcode = 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);
}
void ignore_int()