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🆕 新增了ata驱动程序

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This commit is contained in:
fslongjin
2022-03-20 21:35:36 +08:00
parent 0aee6bb409
commit b28f7d9c0d
6 changed files with 429 additions and 24 deletions
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60
kernel/driver/disk/ata.c Normal file
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#include "ata.h"
#include "../../common/kprint.h"
#include "../interrupt/apic/apic.h"
struct apic_IO_APIC_RTE_entry entry;
/**
* @brief 硬盘中断上半部处理程序
*
* @param irq_num
* @param param
* @param regs
*/
void ata_disk_handler(ul irq_num, ul param, struct pt_regs *regs)
{
}
hardware_intr_controller ata_disk_intr_controller =
{
.enable = apic_ioapic_enable,
.disable = apic_ioapic_disable,
.install = apic_ioapic_install,
.uninstall = apic_ioapic_uninstall,
.ack = apic_ioapic_edge_ack,
};
/**
* @brief 初始化ATA磁盘驱动程序
*
*/
void ata_init()
{
entry.vector = 0x2f;
entry.deliver_mode = IO_APIC_FIXED;
entry.dest_mode = DEST_PHYSICAL;
entry.deliver_status = IDLE;
entry.polarity = POLARITY_HIGH;
entry.remote_IRR = IRR_RESET;
entry.trigger_mode = EDGE_TRIGGER;
entry.mask = MASKED;
entry.reserved = 0;
entry.destination.physical.reserved1 = 0;
entry.destination.physical.reserved2 = 0;
entry.destination.physical.phy_dest = 0; // 投递至BSP
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_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_DISK1_CONTROLLER_STATUS_CMD, 0xec); // 获取硬件设备识别信息
}