mirror of
https://github.com/DragonOS-Community/DragonOS.git
synced 2025-06-20 10:06:31 +00:00
🆕 鼠标驱动（有bug，还不能用）
This commit is contained in:
fslongjin
315
kernel/driver/mouse/mouse.c
Normal file
315
kernel/driver/mouse/mouse.c
Normal file
@ -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 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\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 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);
|
||||
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();
|
||||
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 ==========
|
||||
|
||||
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 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 < 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
107
kernel/driver/mouse/mouse.h
Normal file
@ -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 键盘循环队列缓冲区结构体
|
||||
*
|
||||
*/
|
||||
struct mouse_input_buffer
|
||||
{
|
||||
unsigned char *ptr_head;
|
||||
unsigned char *ptr_tail;
|
||||
int count;
|
||||
unsigned char buffer[mouse_buffer_size];
|
||||
};
|
||||
|
||||
/**
|
||||
* @brief 初始化鼠标驱动程序
|
||||
*
|
||||
*/
|
||||
void mouse_init();
|
||||
|
||||
/**
|
||||
* @brief 卸载鼠标驱动程序
|
||||
*
|
||||
*/
|
||||
void mouse_exit();
|
||||
|
||||
/**
|
||||
* @brief 设置鼠标采样率
|
||||
*
|
||||
* @param hz 采样率
|
||||
*/
|
||||
int mouse_set_sample_rate(unsigned int hz);
|
||||
|
||||
/**
|
||||
* @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);
|
||||
Reference in New Issue
Block a user