Merge usb_floppy back into usb_disk.

- USB pen drive seems to still work. More extensive testing welcome.
- USB floppies don't work yet, but they don't work anymore with the
current driver, either. I'm still investigating that part.

Fixes #9276

Change-Id: I8aa5ab828ad2ad867d0c187062d6e179372fc2ad
Reviewed-on: https://review.haiku-os.org/747
Reviewed-by: Jérôme Duval <jerome.duval@gmail.com>
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

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

Introduce a simple usb_disk driver that supports USB mass storage devices of
the bulk-only class using transparent SCSI commands (i.e. most of the current
external harddrives and flash media). It emulates the few SCSI commands needed
to get this sort of devices working and does not interface with the SCSI
subsystem. This makes it far easier to get working and also far better fits
how the USB stack works (as drivers can be dynamically rescanned when device
changes occur). This will allow for easy dynamic un- and replugging at runtime.
Note that while the device is currently published when you plug something in at
runtime, the partitions are not scanned and published automatically. It works
however if you have the device plugged in at boot.
I haven't added this driver to the image yet, but if properly installed and
with boot module links to the driver and USB stack, it allows to boot Haiku
from USB media like memory sticks or external harddrives.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24713 a95241bf-73f2-0310-859d-f6bbb57e9c96

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

Introduce a simple usb_disk driver that supports USB mass storage devices of
the bulk-only class using transparent SCSI commands (i.e. most of the current
external harddrives and flash media). It emulates the few SCSI commands needed
to get this sort of devices working and does not interface with the SCSI
subsystem. This makes it far easier to get working and also far better fits
how the USB stack works (as drivers can be dynamically rescanned when device
changes occur). This will allow for easy dynamic un- and replugging at runtime.
Note that while the device is currently published when you plug something in at
runtime, the partitions are not scanned and published automatically. It works
however if you have the device plugged in at boot.
I haven't added this driver to the image yet, but if properly installed and
with boot module links to the driver and USB stack, it allows to boot Haiku
from USB media like memory sticks or external harddrives.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24713 a95241bf-73f2-0310-859d-f6bbb57e9c96