make stuff public

1 files changed, 42 insertions, 4 deletions

diff --git a/kernel/include/comus/drivers/ata.h b/kernel/include/comus/drivers/ata.h
index 06d3e78..5f97df3 100644
--- a/kernel/include/comus/drivers/ata.h
+++ b/kernel/include/comus/drivers/ata.h
@@ -1,6 +1,3 @@
-#ifndef ATA_H_
-#define ATA_H_
-
 /*
  * @file ata.h
  *
@@ -10,7 +7,32 @@
  * ATA driver
  */
 
-#include <stdbool.h>
+#ifndef ATA_H_
+#define ATA_H_
+
+#include <stdint.h>
+
+struct ide_channel {
+	uint16_t io_base;
+	uint16_t control_base;
+	uint16_t bus_master_ide_base;
+	uint8_t no_interrupt;
+};
+
+struct ide_device {
+	uint8_t is_reserved; // 0 (Empty) or 1 (This Drive really exists).
+	uint8_t channel_idx; // 0 (Primary Channel) or 1 (Secondary Channel).
+	uint8_t drive_idx; // 0 (Master Drive) or 1 (Slave Drive).
+	uint16_t type; // 0: ATA, 1:ATAPI.
+	uint16_t drive_signature;
+	uint16_t features;
+	uint32_t supported_command_sets;
+	uint32_t size_in_sectors;
+	uint8_t model_str[41];
+};
+
+extern struct ide_channel ide_channels[2];
+extern struct ide_device ide_devices[4];
 
 /**
  * @returns 0 on success, 1 on failure
@@ -18,6 +40,22 @@
 int ata_init(void);
 
 /**
+ * reads a number of sectors from the provided IDE/ATA device
+ *
+ * @returns 0 on success or an error code on failure
+ */
+int ide_device_read_sectors(struct ide_device *dev, uint8_t numsects,
+							uint32_t lba, uint16_t buf[numsects * 256]);
+
+/**
+ * writes a number of sectors to the provided IDE/ATA device
+ *
+ * @returns 0 on success or an error code on failure
+ */
+int ide_device_write_sectors(struct ide_device *dev, uint8_t numsects,
+							 uint32_t lba, uint16_t buf[numsects * 256]);
+
+/**
  * report all ata devices to console
  */
 void ata_report(void);