103 lines
2.8 KiB
C
103 lines
2.8 KiB
C
#pragma once
|
|
|
|
|
|
#include <types.h>
|
|
|
|
// ----> IDE Driver
|
|
// Source: https://wiki.osdev.org/PCI_IDE_Controller
|
|
|
|
|
|
// ---- Constants ----
|
|
|
|
// -> Status
|
|
|
|
#define ATA_SR_BSY 0x80 // Busy
|
|
#define ATA_SR_DRDY 0x40 // Drive ready
|
|
#define ATA_SR_DF 0x20 // Drive write fault
|
|
#define ATA_SR_DSC 0x10 // Drive seek complete
|
|
#define ATA_SR_DRQ 0x08 // Data request ready
|
|
#define ATA_SR_CORR 0x04 // Corrected data
|
|
#define ATA_SR_IDX 0x02 // Index
|
|
#define ATA_SR_ERR 0x01 // Error
|
|
|
|
// -> Errors
|
|
|
|
#define ATA_ER_BBK 0x80 // Bad block
|
|
#define ATA_ER_UNC 0x40 // Uncorrectable data
|
|
#define ATA_ER_MC 0x20 // Media changed
|
|
#define ATA_ER_IDNF 0x10 // ID mark not found
|
|
#define ATA_ER_MCR 0x08 // Media change request
|
|
#define ATA_ER_ABRT 0x04 // Command aborted
|
|
#define ATA_ER_TK0NF 0x02 // Track 0 not found
|
|
#define ATA_ER_AMNF 0x01 // No address mark
|
|
|
|
// -> Commands
|
|
|
|
|
|
|
|
#define ATA_CMD_READ_PIO 0x20
|
|
#define ATA_CMD_READ_PIO_EXT 0x24
|
|
#define ATA_CMD_READ_DMA 0xC8
|
|
#define ATA_CMD_READ_DMA_EXT 0x25
|
|
#define ATA_CMD_WRITE_PIO 0x30
|
|
#define ATA_CMD_WRITE_PIO_EXT 0x34
|
|
#define ATA_CMD_WRITE_DMA 0xCA
|
|
#define ATA_CMD_WRITE_DMA_EXT 0x35
|
|
#define ATA_CMD_CACHE_FLUSH 0xE7
|
|
#define ATA_CMD_CACHE_FLUSH_EXT 0xEA
|
|
#define ATA_CMD_PACKET 0xA0
|
|
#define ATA_CMD_IDENTIFY_PACKET 0xA1
|
|
#define ATA_CMD_IDENTIFY 0xEC
|
|
|
|
#define ATAPI_CMD_READ 0xA8
|
|
#define ATAPI_CMD_EJECT 0x1B
|
|
|
|
#define ATA_IDENT_DEVICETYPE 0
|
|
#define ATA_IDENT_CYLINDERS 2
|
|
#define ATA_IDENT_HEADS 6
|
|
#define ATA_IDENT_SECTORS 12
|
|
#define ATA_IDENT_SERIAL 20
|
|
#define ATA_IDENT_MODEL 54
|
|
#define ATA_IDENT_CAPABILITIES 98
|
|
#define ATA_IDENT_FIELDVALID 106
|
|
#define ATA_IDENT_MAX_LBA 120
|
|
#define ATA_IDENT_COMMANDSETS 164
|
|
#define ATA_IDENT_MAX_LBA_EXT 200
|
|
|
|
#define IDE_ATA 0x00
|
|
#define IDE_ATAPI 0x01
|
|
|
|
#define ATA_MASTER 0x00
|
|
#define ATA_SLAVE 0x01
|
|
|
|
#define ATA_REG_DATA 0x00
|
|
#define ATA_REG_ERROR 0x01
|
|
#define ATA_REG_FEATURES 0x01
|
|
#define ATA_REG_SECCOUNT0 0x02
|
|
#define ATA_REG_LBA0 0x03
|
|
#define ATA_REG_LBA1 0x04
|
|
#define ATA_REG_LBA2 0x05
|
|
#define ATA_REG_HDDEVSEL 0x06
|
|
#define ATA_REG_COMMAND 0x07
|
|
#define ATA_REG_STATUS 0x07
|
|
#define ATA_REG_SECCOUNT1 0x08
|
|
#define ATA_REG_LBA3 0x09
|
|
#define ATA_REG_LBA4 0x0A
|
|
#define ATA_REG_LBA5 0x0B
|
|
#define ATA_REG_CONTROL 0x0C
|
|
#define ATA_REG_ALTSTATUS 0x0C
|
|
#define ATA_REG_DEVADDRESS 0x0D
|
|
|
|
// > Channels:
|
|
#define ATA_PRIMARY 0x00
|
|
#define ATA_SECONDARY 0x01
|
|
|
|
// > Directions:
|
|
#define ATA_READ 0x00
|
|
#define ATA_WRITE 0x01
|
|
|
|
// ---- Functions -----
|
|
|
|
void ide_init();
|
|
u8 ide_write_sectors(unsigned char drive, unsigned int lba, u8 *buf);
|