Began two-stage hdd bootloader and os installer

1 files changed, 31 insertions, 0 deletions

diff --git a/src/kernel/fs/ata_pio.h b/src/kernel/fs/ata_pio.h
new file mode 100644
index 0000000..3f1439d
--- /dev/null
+++ b/src/kernel/fs/ata_pio.h
@@ -0,0 +1,31 @@
+#ifndef MELVIX_ATA_PIO_H
+#define MELVIX_ATA_PIO_H
+
+#include <stdint.h>
+
+#define BYTES_PER_SECTOR 512
+
+struct ATA_INTERFACE {
+    uint8_t master;
+    uint16_t dataPort;
+    uint16_t errorPort;
+    uint16_t sectorCountPort;
+    uint16_t lbaLowPort;
+    uint16_t lbaMidPort;
+    uint16_t lbaHiPort;
+    uint16_t devicePort;
+    uint16_t commandPort;
+    uint16_t controlPort;
+};
+
+struct ATA_INTERFACE *new_ATA(uint8_t master, uint16_t portBase);
+
+uint8_t ATA_identify(struct ATA_INTERFACE *iface, uint16_t *retdata);
+
+uint8_t *ATA_read28(struct ATA_INTERFACE *iface, uint32_t sector);
+
+uint8_t ATA_write28(struct ATA_INTERFACE *iface, uint32_t sector, uint8_t *contents);
+
+uint8_t ATA_clear28(struct ATA_INTERFACE *iface, uint32_t sector);
+
+#endif