Nucleus

diff --git a/drivers/storage/ide.h b/drivers/storage/ide.h
new file mode 100644
index 0000000..b59bf18
--- /dev/null
+++ b/drivers/storage/ide.h
@@ -0,0 +1,124 @@
+#ifndef DRIVERS_STORAGE_IDE_H
+#define DRIVERS_STORAGE_IDE_H
+
+/* IDE Types */
+enum IDEType {
+	IDE_ATA,
+	IDE_ATAPI,
+};
+
+/* LBA Modes */
+enum LBAMode {
+	LBA_CHS,
+	LBA_28,
+	LBA_48,
+};
+
+/* IDE Poll Response Errors */
+enum IDEPollError {
+	ERROR_NONE,
+	ERROR_GENERIC,
+	ERROR_WRITE_FAULT,
+	ERROR_NOT_READY,
+};
+
+/* IDE Status Responses */
+enum IDEStatus {
+	IDE_SR_BUSY = 0x80,
+	IDE_SR_READY = 0x40,
+	IDE_SR_WRITE_FAULT = 0x20,
+	IDE_SR_SEEK_COMPLETE = 0x10,
+	IDE_SR_DATA_READY = 0x08,
+	IDE_SR_CORRECTED_DATA = 0x04,
+	IDE_SR_INDEX = 0x02,
+	IDE_SR_ERROR = 0x01,
+};
+
+/* IDE Commands */
+enum IDECommand {
+	IDE_CMD_READ_PIO = 0x20,
+	IDE_CMD_READ_PIO_EXT = 0x24,
+	IDE_CMD_READ_DMA = 0xC8,
+	IDE_CMD_READ_DMA_EXT = 0x25,
+	IDE_CMD_WRITE_PIO = 0x30,
+	IDE_CMD_WRITE_PIO_EXT = 0x34,
+	IDE_CMD_WRITE_DMA = 0xCA,
+	IDE_CMD_WRITE_DMA_EXT = 0x35,
+	IDE_CMD_CACHE_FLUSH = 0xE7,
+	IDE_CMD_CACHE_FLUSH_EXT = 0xEA,
+	IDE_CMD_PACKET = 0xA0,
+	IDE_CMD_IDENTIFY_PACKET = 0xA1,
+	IDE_CMD_IDENTIFY = 0xEC,
+};
+
+/* IDE Identities */
+enum IDEIdentity {
+	IDE_IDENT_DEVICETYPE = 0,
+	IDE_IDENT_CYLINDERS = 2,
+	IDE_IDENT_HEADS = 6,
+	IDE_IDENT_SECTORS = 12,
+	IDE_IDENT_SERIAL = 20,
+	IDE_IDENT_MODEL = 54,
+	IDE_IDENT_CAPABILITIES = 98,
+	IDE_IDENT_FIELDVALID = 106,
+	IDE_IDENT_MAX_LBA = 120,
+	IDE_IDENT_COMMANDSETS = 164,
+	IDE_IDENT_MAX_LBA_EXT = 200,
+};
+
+/* IDE Registers */
+enum IDERegister {
+	IDE_REG_DATA = 0x00,
+	IDE_REG_ERROR = 0x01,
+	IDE_REG_FEATURES = 0x01,
+	IDE_REG_SECCOUNT0 = 0x02,
+	IDE_REG_LBA0 = 0x03,
+	IDE_REG_LBA1 = 0x04,
+	IDE_REG_LBA2 = 0x05,
+	IDE_REG_HDDEVSEL = 0x06,
+	IDE_REG_COMMAND = 0x07,
+	IDE_REG_STATUS = 0x07,
+	IDE_REG_SECCOUNT1 = 0x08,
+	IDE_REG_LBA3 = 0x09,
+	IDE_REG_LBA4 = 0x0A,
+	IDE_REG_LBA5 = 0x0B,
+	IDE_REG_CONTROL = 0x0C,
+	IDE_REG_ALTSTATUS = 0x0C,
+	IDE_REG_DEVADDRESS = 0x0D,
+};
+
+/* IDE Channels */
+enum IDEChannel {
+	IDE_PRIMARY,
+	IDE_SECONDARY,
+};
+struct IDEChannelRegs {
+	uint16_t base;
+	uint16_t ctrl;
+	uint16_t busmaster;
+	uint8_t noint;
+};
+
+/* Structure for an IDE Device */
+struct IDEDevice {
+	uint8_t reserved;
+	uint8_t channel;
+	uint8_t drive;
+	uint16_t type;
+	uint16_t signature;
+	uint16_t capabilities;
+	uint32_t commandSets;
+	uint32_t size;
+	char model[41];
+};
+
+extern struct IDEChannelRegs ideChannels[];
+extern struct IDEDevice ideDevices[];
+
+uint8_t ide_read(uint8_t channel, uint8_t reg);
+void ide_write(uint8_t channel, uint8_t reg, uint8_t data);
+uint8_t ide_poll_status(uint8_t channel, uint32_t check);
+
+void ata_init(struct IDEDevice *dev);
+
+#endif