usb_disk: extract specs into a public header.

2014-08-03 18:10:51 +02:00
parent 22ea661b82
commit d9ecf5f373
3 changed files with 52 additions and 31 deletions
@@ -0,0 +1,48 @@
+/*
+ * Copyright 2014, Haiku Inc. All Rights Reserved.
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _USB_MSC_H
+#define _USB_MSC_H
+
+
+// (Partial) USB Class Definitions for Mass Storage Devices (MSC), version 1.0
+// Reference: http://www.usb.org/developers/devclass_docs/usbmassbulk_10.pdf
+
+
+#define USB_MASS_STORAGE_DEVICE_CLASS	0x08
+
+#define CBW_SIGNATURE				0x43425355
+#define CBW_DATA_OUTPUT				0x00
+#define CBW_DATA_INPUT				0x80
+
+#define CSW_SIGNATURE				0x53425355
+#define CSW_STATUS_COMMAND_PASSED	0x00
+#define CSW_STATUS_COMMAND_FAILED	0x01
+#define CSW_STATUS_PHASE_ERROR		0x02
+
+#define REQUEST_MASS_STORAGE_RESET	0xff
+#define REQUEST_GET_MAX_LUN			0xfe
+
+
+typedef struct {
+	uint32		signature;
+	uint32		tag;
+	uint32		data_transfer_length;
+	uint8		flags;
+	uint8		lun;
+	uint8		command_block_length;
+	uint8		command_block[16];
+} _PACKED command_block_wrapper;
+
+
+typedef struct {
+	uint32		signature;
+	uint32		tag;
+	uint32		data_residue;
+	uint8		status;
+} _PACKED command_status_wrapper;
+
+
+#endif
+