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Code Issues Releases Wiki Activity

ata_disk_handler

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This commit is contained in:
fslongjin
2022-03-21 17:13:15 +08:00
parent b28f7d9c0d
commit 046bce39a9
7 changed files with 68 additions and 18 deletions
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46
kernel/driver/disk/ata.c
View File

@ -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
}

4
kernel/driver/disk/ata.h
View File

@ -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
{