从鼠标接收数据

yourtion · Sep 17, 2014 · ab7d050 · ab7d050
1 parent ac5586e
commit ab7d050
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Showing 2 changed files with 25 additions and 14 deletions.
diff --git a/07_day/bootpack.c b/07_day/bootpack.c
@@ -3,21 +3,22 @@
 #include "bootpack.h"
 #include <stdio.h>
 
-extern struct FIFO8 keyfifo;
+extern struct FIFO8 keyfifo, mousefifo;
 void enable_mouse(void);
 void init_keyboard(void);
 
 void HariMain(void)
 {
 	struct BOOTINFO *binfo = (struct BOOTINFO *) ADR_BOOTINFO;
-	char s[40], mcursor[256], keybuf[32];
+	char s[40], mcursor[256], keybuf[32], mousebuf[128];
 	int mx, my, i;
 
 	init_gdtidt();
 	init_pic();
 	io_sti(); /* IDT/PICの初期化が終わったのでCPUの割り込み禁止を解除 */
 
 	fifo8_init(&keyfifo, 32, keybuf);
+	fifo8_init(&mousefifo, 128, mousebuf);
 	io_out8(PIC0_IMR, 0xf9); /* PIC1とキーボードを許可(11111001) */
 	io_out8(PIC1_IMR, 0xef); /* マウスを許可(11101111) */
 
@@ -36,14 +37,22 @@ void HariMain(void)
 
 	for (;;) {
 		io_cli();
-		if (fifo8_status(&keyfifo) == 0) {
+		if (fifo8_status(&keyfifo) + fifo8_status(&mousefifo) == 0) {
 			io_stihlt();
 		} else {
-			i = fifo8_get(&keyfifo);
-			io_sti();
-			sprintf(s, "%02X", i);
-			boxfill8(binfo->vram, binfo->scrnx, COL8_008484, 0, 16, 15, 31);
-			putfonts8_asc(binfo->vram, binfo->scrnx, 0, 16, COL8_FFFFFF, s);
+			if (fifo8_status(&keyfifo) != 0) {
+				i = fifo8_get(&keyfifo);
+				io_sti();
+				sprintf(s, "%02X", i);
+				boxfill8(binfo->vram, binfo->scrnx, COL8_008484,  0, 16, 15, 31);
+				putfonts8_asc(binfo->vram, binfo->scrnx, 0, 16, COL8_FFFFFF, s);
+			} else if (fifo8_status(&mousefifo) != 0) {
+				i = fifo8_get(&mousefifo);
+				io_sti();
+				sprintf(s, "%02X", i);
+				boxfill8(binfo->vram, binfo->scrnx, COL8_008484, 32, 16, 47, 31);
+				putfonts8_asc(binfo->vram, binfo->scrnx, 32, 16, COL8_FFFFFF, s);
+			}
 		}
 	}
 }

diff --git a/07_day/int.c b/07_day/int.c
@@ -39,15 +39,17 @@ void inthandler21(int *esp)
 	return;
 }
 
+struct FIFO8 mousefifo;
+
 void inthandler2c(int *esp)
 /* 来自PS/2鼠标的中断 */
 {
-	struct BOOTINFO *binfo = (struct BOOTINFO *) ADR_BOOTINFO;
-	boxfill8(binfo->vram, binfo->scrnx, COL8_000000, 0, 0, 32 * 8 - 1, 15);
-	putfonts8_asc(binfo->vram, binfo->scrnx, 0, 0, COL8_FFFFFF, "INT 2C (IRQ-12) : PS/2 mouse");
-	for (;;) {
-		io_hlt();
-	}
+	unsigned char data;
+	io_out8(PIC1_OCW2, 0x64);	/* 通知PIC IRQ-12 已经受理完毕 */
+	io_out8(PIC0_OCW2, 0x62);	/* 通知PIC IRQ-02 已经受理完毕 */
+	data = io_in8(PORT_KEYDAT);
+	fifo8_put(&mousefifo, data);
+	return;
 }
 
 void inthandler27(int *esp)