Work In Progress (do not try yet!) driver for usb floppy drive.

This is loosely based on usb_disk, but uses a different protocol for sending the commands.
Refactoring is unfinished, so don't look at the style too muh, it will e fixed and cleaned up later.

Basic communication with the drive works (sending commands). Command themselves still mostly untested.
Command Blocks sent to the drive are most likely wrong and may erase your floppies or do any other weird things!


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38379 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/kernel/drivers/disk/usb/Jamfile

@@ -1,3 +1,4 @@
 SubDir HAIKU_TOP src add-ons kernel drivers disk usb ;
 
 SubInclude HAIKU_TOP src add-ons kernel drivers disk usb usb_disk ;
+SubInclude HAIKU_TOP src add-ons kernel drivers disk usb usb_floppy ;

src/add-ons/kernel/drivers/disk/usb/usb_floppy/Jamfile

@@ -0,0 +1,8 @@
+SubDir HAIKU_TOP src add-ons kernel drivers disk usb usb_floppy ;
+
+SubDirSysHdrs $(HAIKU_TOP) src add-ons kernel bus_managers usb ;
+UsePrivateHeaders kernel ;
+
+KernelAddon usb_floppy :
+	usb_disk.cpp
+	;

src/add-ons/kernel/drivers/disk/usb/usb_floppy/usb_disk.h

@@ -0,0 +1,97 @@
+/*
+ * Copyright 2008, Haiku Inc. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Michael Lotz <mmlr@mlotz.ch>
+ */
+
+#ifndef _USB_DISK_H_
+#define _USB_DISK_H_
+
+#include <lock.h>
+#include <USB3.h>
+
+#define REQUEST_MASS_STORAGE_RESET	0xff
+#define REQUEST_GET_MAX_LUN			0xfe
+#define MAX_LOGICAL_UNIT_NUMBER		15
+#define ATAPI_COMMAND_LENGTH		12
+
+#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 SYNC_SUPPORT_RELOAD			5
+
+typedef struct device_lun_s device_lun;
+
+// holds common information about an attached device (pointed to by luns)
+typedef struct disk_device_s {
+	usb_device	device;
+	uint32		device_number;
+	bool		removed;
+	uint32		open_count;
+	mutex		lock;
+	void *		link;
+
+	// device state
+	usb_pipe	bulk_in;
+	usb_pipe	bulk_out;
+	usb_pipe	interrupt;
+	uint8		interface;
+	uint32		current_tag;
+	uint8		sync_support;
+	bool		tur_supported;
+	bool		is_atapi;
+
+	// used to store callback information
+	sem_id		notify;
+	status_t	status;
+	size_t		actual_length;
+
+	// logical units of this device
+	uint8		lun_count;
+	device_lun **luns;
+} disk_device;
+
+
+// represents a logical unit on the pointed to device - this gets published
+struct device_lun_s {
+	disk_device *device;
+	char		name[32];
+	uint8		logical_unit_number;
+	bool		should_sync;
+
+	// device information through read capacity/inquiry
+	bool		media_present;
+	bool		media_changed;
+	uint32		block_count;
+	uint32		block_size;
+	uint8		device_type;
+	bool		removable;
+	bool		write_protected;
+};
+
+
+typedef struct command_block_wrapper_s {
+	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 command_status_wrapper_s {
+	uint8		status;
+	uint8		misc;
+} _PACKED command_status_wrapper;
+
+#endif // _USB_DISK_H_

src/add-ons/kernel/drivers/disk/usb/usb_floppy/usb_disk_scsi.h

@@ -0,0 +1,91 @@
+/*
+ * Copyright 2008, Haiku Inc. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ *		Michael Lotz <mmlr@mlotz.ch>
+ */
+
+#ifndef _USB_DISK_SCSI_H_
+#define _USB_DISK_SCSI_H_
+
+typedef enum {
+	SCSI_TEST_UNIT_READY_6 = 0x00,
+	SCSI_REQUEST_SENSE_6 = 0x03,
+	SCSI_INQUIRY_6 = 0x12,
+	SCSI_MODE_SENSE_6 = 0x1a,
+	SCSI_START_STOP_UNIT_6 = 0x1b,
+	SCSI_READ_CAPACITY_10 = 0x25,
+	SCSI_READ_10 = 0x28,
+	SCSI_WRITE_10 = 0x2a,
+	SCSI_SYNCHRONIZE_CACHE_10 = 0x35,
+} scsi_operations;
+
+// parameters = returned data
+typedef struct scsi_request_sense_6_parameter_s {
+	uint8	error_code : 7;
+	uint8	valid : 1;
+	uint8	segment_number;
+	uint8	sense_key : 4;
+	uint8	unused_1 : 4;
+	uint32	information;
+	uint8	additional_sense_length;
+	uint32	command_specific_information;
+	uint8	additional_sense_code;
+	uint8	additional_sense_code_qualifier;
+	uint8	field_replacable_unit_code;
+	uint8	sense_key_specific[3];
+} _PACKED scsi_request_sense_6_parameter;
+
+typedef struct scsi_inquiry_6_parameter_s {
+	uint8	peripherial_device_type : 5;
+	uint8	peripherial_qualifier : 3;
+	uint8	reserved_1 : 7;
+	uint8	removable_medium : 1;
+	uint8	version;
+	uint8	response_data_format : 4;
+	uint8	unused_1 : 4;
+	uint8	additional_length;
+	uint8	unused_2[3];
+	char	vendor_identification[8];
+	char	product_identification[16];
+	char	product_revision_level[4];
+} _PACKED scsi_inquiry_6_parameter;
+
+typedef struct scsi_mode_sense_6_parameter_s {
+	uint8	data_length;
+	uint8	medium_type;
+	uint8	device_specific;
+	uint8	block_descriptor_length;
+	uint8	densitiy;
+	uint8	num_blocks[3];
+	uint8	reserved;
+	uint8	block_length[3];
+} _PACKED scsi_mode_sense_6_parameter;
+
+typedef struct scsi_read_capacity_10_parameter_s {
+	uint32	last_logical_block_address;
+	uint32	logical_block_length;
+} _PACKED scsi_read_capacity_10_parameter;
+
+// request sense keys/codes
+typedef enum {
+	SCSI_SENSE_KEY_NO_SENSE = 0x00,
+	SCSI_SENSE_KEY_RECOVERED_ERROR = 0x01,
+	SCSI_SENSE_KEY_NOT_READY = 0x02,
+	SCSI_SENSE_KEY_MEDIUM_ERROR = 0x03,
+	SCSI_SENSE_KEY_HARDWARE_ERROR = 0x04,
+	SCSI_SENSE_KEY_ILLEGAL_REQUEST = 0x05,
+	SCSI_SENSE_KEY_UNIT_ATTENTION = 0x06,
+	SCSI_SENSE_KEY_DATA_PROTECT = 0x07,
+	SCSI_SENSE_KEY_ABORTED_COMMAND = 0x0b,
+} scsi_sense_key;
+
+// request sense additional sense codes
+#define SCSI_ASC_MEDIUM_NOT_PRESENT			0x3a
+
+// mode sense page code/parameter
+#define SCSI_MODE_PAGE_DEVICE_CONFIGURATION	0x10
+#define SCSI_DEVICE_SPECIFIC_WRITE_PROTECT	0x80
+
+#endif // _USB_DISK_SCSI_H_