37 lines
953 B
C
37 lines
953 B
C
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#ifndef ATA_PIO
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#define ATA_PIO
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#include <stdint.h>
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#include <ports.h>
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// register stuff
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#define ATA_IO_BASE 0x1F0
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#define ATA_CONTROL_BASE 0x3F0
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#define ATA_SECONDARY_OFFSET 128
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#define ATA_DATA_REGISTER 0
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#define ATA_ERROR_REGISTER 1
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#define ATA_FEATURES_REGISTER 1
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#define ATA_SECTOR_COUNT_REGISTER 2
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#define ATA_SECTOR_REGISTER 3
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#define ATA_CYL_LOW_REGISTER 4
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#define ATA_CYL_HIGH_REGISTER 5
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#define ATA_DRIVE_REGISTER 6
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#define ATA_STATUS_REGISTER 7
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#define ATA_COMMAND_REGISTER 7
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#define ATA_ALTERNATE_STATUS_REGISTER 0
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#define ATA_DEVICE_CONTROL_REGISTER 0
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#define ATA_DRIVE_ADDRESS_REGISTER 1
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// bitfield stuff
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// declarations
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int ata_init(uint8_t bus, uint8_t drive);
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int ata_read(uint8_t bus, uint8_t drive, uint16_t* buf, uint16_t sectors, uint16_t lba_high, uint32_t lba_low);
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int ata_write(uint8_t bus, uint8_t drive, uint16_t* buf, uint16_t sectors, uint16_t lba_high, uint32_t lba_low);
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extern uint16_t ata_identify[256];
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#endif
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