41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
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#ifndef _IDE_H
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#define _IDE_H
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#include <stdint.h>
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#include <stddef.h>
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#define ATA_PRIMARY_IO 0x1F0
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#define ATA_PRIMARY_CTRL 0x3F6
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#define ATA_MASTER 0x00
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#define ATA_SLAVE 0x10
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#define ATA_REG_DATA 0x00
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#define ATA_REG_ERROR 0x01
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#define ATA_REG_SECCOUNT0 0x02
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#define ATA_REG_LBA0 0x03
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#define ATA_REG_LBA1 0x04
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#define ATA_REG_LBA2 0x05
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#define ATA_REG_LBA3 0x06 // LBA48 higher bits
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#define ATA_REG_LBA4 0x07 // LBA48 higher bits
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#define ATA_REG_LBA5 0x08 // LBA48 higher bits
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#define ATA_REG_HDDEVSEL 0x06
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#define ATA_REG_COMMAND 0x07
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#define ATA_REG_STATUS 0x07
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#define ATA_CMD_READ_SECTORS 0x20
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#define ATA_CMD_WRITE_SECTORS 0x30
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#define ATA_CMD_READ_SECTORS_EXT 0x24
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#define ATA_CMD_WRITE_SECTORS_EXT 0x34
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#define ATA_SR_BSY 0x80
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#define ATA_SR_DRDY 0x40
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#define ATA_SR_DRQ 0x08
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#define ATA_SR_ERR 0x01
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void ide_initialize(void);
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int32_t ide_identify(uint8_t drive, uint16_t* buffer);
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int32_t ide_read48(uint8_t drive, uint64_t lba, uint8_t sector_count, void* buffer);
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int32_t ide_write48(uint8_t drive, uint64_t lba, uint8_t sector_count, const void* buffer);
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#endif
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