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60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
#include "ata.h"
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#include "../../common/kprint.h"
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#include "../interrupt/apic/apic.h"
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struct apic_IO_APIC_RTE_entry entry;
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/**
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* @brief 硬盘中断上半部处理程序
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*
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* @param irq_num
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* @param param
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* @param regs
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*/
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void ata_disk_handler(ul irq_num, ul param, struct pt_regs *regs)
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{
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}
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hardware_intr_controller ata_disk_intr_controller =
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{
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.enable = apic_ioapic_enable,
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.disable = apic_ioapic_disable,
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.install = apic_ioapic_install,
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.uninstall = apic_ioapic_uninstall,
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.ack = apic_ioapic_edge_ack,
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};
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/**
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* @brief 初始化ATA磁盘驱动程序
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*
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*/
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void ata_init()
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{
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entry.vector = 0x2f;
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entry.deliver_mode = IO_APIC_FIXED;
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entry.dest_mode = DEST_PHYSICAL;
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entry.deliver_status = IDLE;
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entry.polarity = POLARITY_HIGH;
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entry.remote_IRR = IRR_RESET;
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entry.trigger_mode = EDGE_TRIGGER;
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entry.mask = MASKED;
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entry.reserved = 0;
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entry.destination.physical.reserved1 = 0;
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entry.destination.physical.reserved2 = 0;
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entry.destination.physical.phy_dest = 0; // 投递至BSP
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irq_register(entry.vector, &entry, &ata_disk_handler, 0, &ata_disk_intr_controller, "ATA Disk 1");
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io_out8(PORT_DISK1_STATUS_CTRL_REG, 0); // 使能中断请求
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io_out8(PORT_DISK1_ERR_STATUS, 0);
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io_out8(PORT_DISK1_SECTOR_CNT, 0);
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io_out8(PORT_DISK1_LBA_7_0, 0);
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io_out8(PORT_DISK1_LBA_15_8, 0);
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io_out8(PORT_DISK1_LBA_23_16, 0);
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io_out8(PORT_DISK1_DEVICE_CONFIGURE_REG, 0);
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io_out8(PORT_DISK1_CONTROLLER_STATUS_CMD, 0xec); // 获取硬件设备识别信息
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} |