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20 lines
749 B
C
20 lines
749 B
C
#include "MBR.h"
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#include <common/kprint.h>
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#include <driver/disk/ahci/ahci.h>
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struct MBR_disk_partition_table_t MBR_partition_tables[MBR_MAX_AHCI_CTRL_NUM][MBR_MAX_AHCI_PORT_NUM] = {0};
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/**
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* @brief 读取磁盘的分区表
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*
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* @param ahci_ctrl_num ahci控制器编号
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* @param ahci_port_num ahci端口编号
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*/
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struct MBR_disk_partition_table_t *MBR_read_partition_table(uint8_t ahci_ctrl_num, uint8_t ahci_port_num)
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{
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unsigned char buf[512];
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memset(buf, 0, 512);
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ahci_operation.transfer(ATA_CMD_READ_DMA_EXT, 0, 1, (uint64_t)&buf, ahci_ctrl_num, ahci_port_num);
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MBR_partition_tables[ahci_ctrl_num][ahci_port_num] = *(struct MBR_disk_partition_table_t *)buf;
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return &MBR_partition_tables[ahci_ctrl_num][ahci_port_num];
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} |