ata_disk_handler

kernel/Makefile

@@ -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 ps2_keyboard.o ps2_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 ata.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/ps2_keyboard.o driver/mouse/ps2_mouse.o \
+	driver/acpi/acpi.o driver/interrupt/pic.o driver/keyboard/ps2_keyboard.o driver/mouse/ps2_mouse.o driver/disk/ata.o \
 	-T link.lds
 
 head.o: head.S
@@ -91,6 +91,9 @@ ps2_keyboard.o: driver/keyboard/ps2_keyboard.c
 ps2_mouse.o: driver/mouse/ps2_mouse.c
 	gcc $(CFLAGS) -c driver/mouse/ps2_mouse.c -o driver/mouse/ps2_mouse.o
 
+ata.o: driver/disk/ata.c
+	gcc $(CFLAGS) -c driver/disk/ata.c -o driver/disk/ata.o
+
 
 clean: 
 	rm -rf $(GARBAGE)

kernel/common/glib.h

@@ -279,6 +279,20 @@ void io_out32(unsigned short port, unsigned int value)
                          : "memory");
 }
 
+/**
+ * @brief 从端口读入n个word到buffer
+ * 
+ */
+#define io_insw(port,buffer,nr)	\
+__asm__ __volatile__("cld;rep;insw;mfence;"::"d"(port),"D"(buffer),"c"(nr):"memory")
+
+/**
+ * @brief 从输出buffer中的n个word到端口
+ * 
+ */
+#define io_outsw(port,buffer,nr)	\
+__asm__ __volatile__("cld;rep;outsw;mfence;"::"d"(port),"S"(buffer),"c"(nr):"memory")
+
 /**
  * @brief 读取rsp寄存器的值（存储了页目录的基地址）
  *

kernel/driver/disk/ata.c

@@ -13,7 +13,35 @@ struct apic_IO_APIC_RTE_entry entry;
  */
 void ata_disk_handler(ul irq_num, ul param, struct pt_regs *regs)
 {
+    struct ata_identify_device_data info;
+    kdebug("irq_num=%ld", irq_num);
 
+    // 从端口读入磁盘配置信息
+    io_insw(PORT_DISK0_DATA, &info, 256);
+    kdebug("General_Config=%#018lx", info.General_Config);
+    printk("Serial number:");
+    unsigned char buf[64];
+    int js=0;
+    //printk("%d", info.Serial_Number);
+    printk("sizeof short=%d\n", sizeof(ushort));
+    
+    for(int i = 0;i<10;i++)
+    {
+        printk("[%d] %d \n",js, ((info.Serial_Number[i])));
+        printk("[%d] %d shift 8\n",js, ((info.Serial_Number[i]) >> 8));
+        printk("[%d] %d  and 0xff\n",js, ((info.Serial_Number[i]) >> 8)&0xff);
+		buf[js++]=((info.Serial_Number[i]) >> 8) & 0xff;
+        buf[js++]=(info.Serial_Number[i] & 0xff);
+    }
+    buf[js] = '\0';
+    printk("xxx");
+    printk("buf[0]=%d", buf[0]);
+    printk("buf[0]=%c", buf[0]);
+    printk("%s", buf);
+	printk("\n");
+
+
+    
 }
 
 hardware_intr_controller ata_disk_intr_controller = 
@@ -31,7 +59,7 @@ hardware_intr_controller ata_disk_intr_controller =
  */
 void ata_init()
 {
-    entry.vector = 0x2f;
+    entry.vector = 0x2e;
     entry.deliver_mode = IO_APIC_FIXED;
     entry.dest_mode = DEST_PHYSICAL;
     entry.deliver_status = IDLE;
@@ -47,14 +75,14 @@ void ata_init()
 
     irq_register(entry.vector, &entry, &ata_disk_handler, 0, &ata_disk_intr_controller, "ATA Disk 1");
 
-    io_out8(PORT_DISK1_STATUS_CTRL_REG, 0);   // 使能中断请求
+    io_out8(PORT_DISK0_STATUS_CTRL_REG, 0);   // 使能中断请求
 
-    io_out8(PORT_DISK1_ERR_STATUS, 0);
-    io_out8(PORT_DISK1_SECTOR_CNT, 0);
-    io_out8(PORT_DISK1_LBA_7_0, 0);
-    io_out8(PORT_DISK1_LBA_15_8, 0);
-    io_out8(PORT_DISK1_LBA_23_16, 0);
-    io_out8(PORT_DISK1_DEVICE_CONFIGURE_REG, 0);
+    io_out8(PORT_DISK0_ERR_STATUS, 0);
+    io_out8(PORT_DISK0_SECTOR_CNT, 0);
+    io_out8(PORT_DISK0_LBA_7_0, 0);
+    io_out8(PORT_DISK0_LBA_15_8, 0);
+    io_out8(PORT_DISK0_LBA_23_16, 0);
+    io_out8(PORT_DISK0_DEVICE_CONFIGURE_REG, 0);
     
-    io_out8(PORT_DISK1_CONTROLLER_STATUS_CMD, 0xec);    // 获取硬件设备识别信息
+    io_out8(PORT_DISK0_CONTROLLER_STATUS_CMD, 0xec);    // 获取硬件设备识别信息
 }

kernel/driver/disk/ata.h

@@ -9,7 +9,7 @@
 #define PORT_DISK0_LBA_7_0 0x1f3                  // 扇区号 / LBA[7:0]
 #define PORT_DISK0_LBA_15_8 0x1f4                 // 柱面号[7:0] / LBA[15:8]
 #define PORT_DISK0_LBA_23_16 0x1f5                // 柱面号[15:8] / LBA[23:16]
-#define PORT_DISK0_LBA_DEVICE_CONFIGURE_REG 0x1f6 // 设备配置寄存器
+#define PORT_DISK0_DEVICE_CONFIGURE_REG 0x1f6 // 设备配置寄存器
 #define PORT_DISK0_CONTROLLER_STATUS_CMD 0x1f7    // 控制器状态端口 / 控制器命令端口
 #define PORT_DISK0_STATUS_CTRL_REG 0x3f6          // 状态寄存器 / 控制寄存器
 
@@ -32,7 +32,7 @@
 
 /**
  * @brief 执行0xec指令返回的512bytes的硬件设备识别信息
- * 位于ATA8-ACS中
+ * 位于ATA8-ACS中 Table-22
  */
 struct ata_identify_device_data
 {

kernel/driver/interrupt/apic/apic.c

@@ -78,7 +78,6 @@ void apic_io_apic_init()
         apic_ioapic_write_rte(i, 0x10020 + ((i - 0x10) >> 1));
     }
 
-
     // 不需要手动启动IO APIC，只要初始化了RTE寄存器之后，io apic就会自动启用了。
     // 而且不是每台电脑都有RCBA寄存器，因此不需要手动启用IO APIC
     /*

kernel/main.c

@@ -17,6 +17,7 @@
 #include "driver/acpi/acpi.h"
 #include "driver/keyboard/ps2_keyboard.h"
 #include "driver/mouse/ps2_mouse.h"
+#include "driver/disk/ata.h"
 
 unsigned int *FR_address = (unsigned int *)0xb8000; //帧缓存区的地址
 
@@ -162,8 +163,9 @@ void system_initialize()
     syscall_init();
 
     cpu_init();
-    ps2_keyboard_init();
-    ps2_mouse_init();
+    //ps2_keyboard_init();
+    //ps2_mouse_init();
+    ata_init();
     // test_slab();
     // test_mm();
 
@@ -180,6 +182,7 @@ void Start_Kernel(void)
     // show_welcome();
     // test_mm();
 
+/*
     while (1)
     {
         ps2_keyboard_analyze_keycode();
@@ -193,7 +196,7 @@ void Start_Kernel(void)
             // 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)
         {

run.sh

@@ -93,7 +93,10 @@ 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 -cpu IvyBridge --enable-kvm
+        -monitor telnet::2333,server,nowait -serial stdio -s -cpu IvyBridge --enable-kvm \
+        #-drive id=disk,file=bin/disk.img,if=none  -device ahci,id=ahci -device ide-hd,drive=disk,bus=ahci.0
+        -hda bin/disk.img
+
     fi
 else
   echo "不满足运行条件"