125 lines
3.4 KiB
C
125 lines
3.4 KiB
C
#ifndef KATA_H
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#define KATA_H
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#ifndef __ASSEMBLER__
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#include <stdint.h>
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#include <stddef.h>
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#endif
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#define IDE_PRIMARY_IO_BASE 0x01F0
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#define IDE_PRIMARY_CRTL_BASE 0x03F6
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#define IDE_SECONDARY_IO_BASE 0x0170
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#define IDE_SECONDARY_CRTL_BASE 0x0376
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#define IDE_DRIVE_MASTER 0xA0
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#define IDE_DRIVE_SLAVE 0xB0
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#define IO_DATA_REG 0x0000
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#define IO_ERROR_REG 0x0001
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#define IO_FEATURE_REG 0x0001
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#define IO_SECTOR_COUNT_REG 0x0002
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#define IO_SECTOR_NUM_REG 0x0003
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#define IO_LBA_LO_REG 0x0003
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#define IO_CYL_LO_REG 0x0004
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#define IO_LBA_MID_REG 0x0004
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#define IO_LBA_HI_REG 0x0005
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#define IO_CYL_HI_REG 0x0005
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#define IO_DRIVE_SELECT_REG 0x0006
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#define IO_STATUS_REG 0x0007
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#define IO_CMD_REG 0x0007
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#define CTRL_ALT_STATUS_REG 0x00
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#define CTRL_DEV_CTRL_REG 0x00
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#define CTRL_DRIVE_ADDR_REG 0x01
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#define ERROR_REG_AMNF 0b00000001 // Address mark not found
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#define ERROR_REG_TKZNF 0b00000010 // Track zero not found
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#define ERROR_REG_ABRT 0b00000100 // Aborted command
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#define ERROR_REG_MCR 0b00001000 // Media change request
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#define ERROR_REG_IDNF 0b00010000 // ID not found
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#define ERROR_REG_MC 0b00100000 // Media changed
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#define ERROR_REG_UNC 0b01000000 // Uncorrectable data error
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#define ERROR_REG_BBK 0b10000000 // Bad Block detected
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#define DRIVE_SELECT_REG_BN 0b00000111
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#define DRIVE_SELECT_REG_DRV 0b00010000
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#define DRIVE_SELECT_REG_LBA 0b01000000
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#define STATUS_REG_ERR 0b00000001
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#define STATUS_REG_IDX 0b00000010
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#define STATUS_REG_CORR 0b00000100
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#define STATUS_REG_DRQ 0b00001000
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#define STATUS_REG_SRV 0b00010000
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#define STATUS_REG_DF 0b00100000
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#define STATUS_REG_RDY 0b01000000
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#define STATUS_REG_BSY 0b10000000
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#define DEV_CTRL_REG_nIEN 0b00000010
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#define DEV_CTRL_REG_SRST 0b00000100
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#define DEV_CTRL_REG_HOB 0b10000000
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#define DRIVE_ADDR_REG_DS0 0b00000001
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#define DRIVE_ADDR_REG_DS1 0b00000010
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#define DRIVE_ADDR_REG_HEAD 0b00111100
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#define DRIVE_ADDR_REG_WTG 0b01000000
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#define ATA_CMD_READ_PIO 0x20
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#define ATA_CMD_READ_PIO_EXT 0x24
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#define ATA_CMD_READ_DMA 0xC8
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#define ATA_CMD_READ_DMA_EXT 0x25
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#define ATA_CMD_WRITE_PIO 0x30
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#define ATA_CMD_WRITE_PIO_EXT 0x34
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#define ATA_CMD_WRITE_DMA 0xCA
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#define ATA_CMD_WRITE_DMA_EXT 0x35
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#define ATA_CMD_CACHE_FLUSH 0xE7
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#define ATA_CMD_CACHE_FLUSH_EXT 0xEA
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#define ATA_CMD_PACKET 0xA0
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#define ATA_CMD_IDENTIFY_PACKET 0xA1
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#define ATA_CMD_IDENTIFY 0xEC
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#define ATAPI_CMD_READ 0xA8
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#define ATAPI_CMD_EJECT 0x1B
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#define ATA_IDENT_DEVICETYPE 0
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#define ATA_IDENT_CYLINDERS 2
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#define ATA_IDENT_HEADS 6
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#define ATA_IDENT_SECTORS 12
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#define ATA_IDENT_SERIAL 20
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#define ATA_IDENT_MODEL 54
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#define ATA_IDENT_MODEL_SZ 40
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#define ATA_IDENT_CAPABILITIES 98
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#define ATA_IDENT_FIELDVALID 106
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#define ATA_IDENT_MAX_LBA 120
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#define ATA_IDENT_COMMANDSETS 164
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#define ATA_IDENT_MAX_LBA_EXT 200
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#ifndef __ASSEMBLER__
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typedef enum {
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NO_DEVICE = 0,
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ATA,
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ATAPI,
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} ide_dev_type;
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typedef struct __attribute__((packed)) {
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uint16_t bus;
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uint8_t device;
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ide_dev_type type;
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uint16_t sig;
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uint16_t capabilities;
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uint32_t command_set;
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char* serial;
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char* model;
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uint32_t size;
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} ide_device_t;
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int select_drive(uint16_t bus, uint8_t drive);
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void ident_device(uint16_t bus, uint8_t drive, uint32_t slot);
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void scan_drives();
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void ide_invoke_irq();
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#endif
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#endif |