usb: gadget: Gadget directory cleanup - group legacy gadgets

The drivers/usb/gadget directory contains many files.
Files which are related can be distributed into separate directories.
This patch moves the legacy gadgets (i.e. those not using configfs)
into a separate directory.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

1 files changed, 1 insertions, 460 deletions

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 49e434ec527d..2986a4369df4 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -722,466 +722,7 @@ config USB_CONFIGFS_F_FS
           implemented in kernel space (for instance Ethernet, serial or
           mass storage) and other are implemented in user space.
 
-config USB_ZERO
-        tristate "Gadget Zero (DEVELOPMENT)"
-        select USB_LIBCOMPOSITE
-        select USB_F_SS_LB
-        help
-          Gadget Zero is a two-configuration device.  It either sinks and
-          sources bulk data; or it loops back a configurable number of
-          transfers.  It also implements control requests, for "chapter 9"
-          conformance.  The driver needs only two bulk-capable endpoints, so
-          it can work on top of most device-side usb controllers.  It's
-          useful for testing, and is also a working example showing how
-          USB "gadget drivers" can be written.
-
-          Make this be the first driver you try using on top of any new
-          USB peripheral controller driver.  Then you can use host-side
-          test software, like the "usbtest" driver, to put your hardware
-          and its driver through a basic set of functional tests.
-
-          Gadget Zero also works with the host-side "usb-skeleton" driver,
-          and with many kinds of host-side test software.  You may need
-          to tweak product and vendor IDs before host software knows about
-          this device, and arrange to select an appropriate configuration.
-
-          Say "y" to link the driver statically, or "m" to build a
-          dynamically linked module called "g_zero".
-
-config USB_ZERO_HNPTEST
-        boolean "HNP Test Device"
-        depends on USB_ZERO && USB_OTG
-        help
-          You can configure this device to enumerate using the device
-          identifiers of the USB-OTG test device.  That means that when
-          this gadget connects to another OTG device, with this one using
-          the "B-Peripheral" role, that device will use HNP to let this
-          one serve as the USB host instead (in the "B-Host" role).
-
-config USB_AUDIO
-        tristate "Audio Gadget"
-        depends on SND
-        select USB_LIBCOMPOSITE
-        select SND_PCM
-        help
-          This Gadget Audio driver is compatible with USB Audio Class
-          specification 2.0. It implements 1 AudioControl interface,
-          1 AudioStreaming Interface each for USB-OUT and USB-IN.
-          Number of channels, sample rate and sample size can be
-          specified as module parameters.
-          This driver doesn't expect any real Audio codec to be present
-          on the device - the audio streams are simply sinked to and
-          sourced from a virtual ALSA sound card created. The user-space
-          application may choose to do whatever it wants with the data
-          received from the USB Host and choose to provide whatever it
-          wants as audio data to the USB Host.
-
-          Say "y" to link the driver statically, or "m" to build a
-          dynamically linked module called "g_audio".
-
-config GADGET_UAC1
-        bool "UAC 1.0 (Legacy)"
-        depends on USB_AUDIO
-        help
-          If you instead want older UAC Spec-1.0 driver that also has audio
-          paths hardwired to the Audio codec chip on-board and doesn't work
-          without one.
-
-config USB_ETH
-        tristate "Ethernet Gadget (with CDC Ethernet support)"
-        depends on NET
-        select USB_LIBCOMPOSITE
-        select USB_U_ETHER
-        select USB_F_ECM
-        select USB_F_SUBSET
-        select CRC32
-        help
-          This driver implements Ethernet style communication, in one of
-          several ways:
-          
-           - The "Communication Device Class" (CDC) Ethernet Control Model.
-             That protocol is often avoided with pure Ethernet adapters, in
-             favor of simpler vendor-specific hardware, but is widely
-             supported by firmware for smart network devices.
-
-           - On hardware can't implement that protocol, a simple CDC subset
-             is used, placing fewer demands on USB.
-
-           - CDC Ethernet Emulation Model (EEM) is a newer standard that has
-             a simpler interface that can be used by more USB hardware.
-
-          RNDIS support is an additional option, more demanding than than
-          subset.
-
-          Within the USB device, this gadget driver exposes a network device
-          "usbX", where X depends on what other networking devices you have.
-          Treat it like a two-node Ethernet link:  host, and gadget.
-
-          The Linux-USB host-side "usbnet" driver interoperates with this
-          driver, so that deep I/O queues can be supported.  On 2.4 kernels,
-          use "CDCEther" instead, if you're using the CDC option. That CDC
-          mode should also interoperate with standard CDC Ethernet class
-          drivers on other host operating systems.
-
-          Say "y" to link the driver statically, or "m" to build a
-          dynamically linked module called "g_ether".
-
-config USB_ETH_RNDIS
-        bool "RNDIS support"
-        depends on USB_ETH
-        select USB_LIBCOMPOSITE
-        select USB_F_RNDIS
-        default y
-        help
-           Microsoft Windows XP bundles the "Remote NDIS" (RNDIS) protocol,
-           and Microsoft provides redistributable binary RNDIS drivers for
-           older versions of Windows.
-
-           If you say "y" here, the Ethernet gadget driver will try to provide
-           a second device configuration, supporting RNDIS to talk to such
-           Microsoft USB hosts.
-           
-           To make MS-Windows work with this, use Documentation/usb/linux.inf
-           as the "driver info file".  For versions of MS-Windows older than
-           XP, you'll need to download drivers from Microsoft's website; a URL
-           is given in comments found in that info file.
-
-config USB_ETH_EEM
-       bool "Ethernet Emulation Model (EEM) support"
-       depends on USB_ETH
-        select USB_LIBCOMPOSITE
-        select USB_F_EEM
-       default n
-       help
-         CDC EEM is a newer USB standard that is somewhat simpler than CDC ECM
-         and therefore can be supported by more hardware.  Technically ECM and
-         EEM are designed for different applications.  The ECM model extends
-         the network interface to the target (e.g. a USB cable modem), and the
-         EEM model is for mobile devices to communicate with hosts using
-         ethernet over USB.  For Linux gadgets, however, the interface with
-         the host is the same (a usbX device), so the differences are minimal.
-
-         If you say "y" here, the Ethernet gadget driver will use the EEM
-         protocol rather than ECM.  If unsure, say "n".
-
-config USB_G_NCM
-        tristate "Network Control Model (NCM) support"
-        depends on NET
-        select USB_LIBCOMPOSITE
-        select USB_U_ETHER
-        select USB_F_NCM
-        select CRC32
-        help
-          This driver implements USB CDC NCM subclass standard. NCM is
-          an advanced protocol for Ethernet encapsulation, allows grouping
-          of several ethernet frames into one USB transfer and different
-          alignment possibilities.
-
-          Say "y" to link the driver statically, or "m" to build a
-          dynamically linked module called "g_ncm".
-
-config USB_GADGETFS
-        tristate "Gadget Filesystem"
-        help
-          This driver provides a filesystem based API that lets user mode
-          programs implement a single-configuration USB device, including
-          endpoint I/O and control requests that don't relate to enumeration.
-          All endpoints, transfer speeds, and transfer types supported by
-          the hardware are available, through read() and write() calls.
-
-          Say "y" to link the driver statically, or "m" to build a
-          dynamically linked module called "gadgetfs".
-
-config USB_FUNCTIONFS
-        tristate "Function Filesystem"
-        select USB_LIBCOMPOSITE
-        select USB_F_FS
-        select USB_FUNCTIONFS_GENERIC if !(USB_FUNCTIONFS_ETH || USB_FUNCTIONFS_RNDIS)
-        help
-          The Function Filesystem (FunctionFS) lets one create USB
-          composite functions in user space in the same way GadgetFS
-          lets one create USB gadgets in user space.  This allows creation
-          of composite gadgets such that some of the functions are
-          implemented in kernel space (for instance Ethernet, serial or
-          mass storage) and other are implemented in user space.
-
-          If you say "y" or "m" here you will be able what kind of
-          configurations the gadget will provide.
-
-          Say "y" to link the driver statically, or "m" to build
-          a dynamically linked module called "g_ffs".
-
-config USB_FUNCTIONFS_ETH
-        bool "Include configuration with CDC ECM (Ethernet)"
-        depends on USB_FUNCTIONFS && NET
-        select USB_U_ETHER
-        select USB_F_ECM
-        select USB_F_SUBSET
-        help
-          Include a configuration with CDC ECM function (Ethernet) and the
-          Function Filesystem.
-
-config USB_FUNCTIONFS_RNDIS
-        bool "Include configuration with RNDIS (Ethernet)"
-        depends on USB_FUNCTIONFS && NET
-        select USB_U_ETHER
-        select USB_F_RNDIS
-        help
-          Include a configuration with RNDIS function (Ethernet) and the Filesystem.
-
-config USB_FUNCTIONFS_GENERIC
-        bool "Include 'pure' configuration"
-        depends on USB_FUNCTIONFS
-        help
-          Include a configuration with the Function Filesystem alone with
-          no Ethernet interface.
-
-config USB_MASS_STORAGE
-        tristate "Mass Storage Gadget"
-        depends on BLOCK
-        select USB_LIBCOMPOSITE
-        select USB_F_MASS_STORAGE
-        help
-          The Mass Storage Gadget acts as a USB Mass Storage disk drive.
-          As its storage repository it can use a regular file or a block
-          device (in much the same way as the "loop" device driver),
-          specified as a module parameter or sysfs option.
-
-          This driver is a replacement for now removed File-backed
-          Storage Gadget (g_file_storage).
-
-          Say "y" to link the driver statically, or "m" to build
-          a dynamically linked module called "g_mass_storage".
-
-config USB_GADGET_TARGET
-        tristate "USB Gadget Target Fabric Module"
-        depends on TARGET_CORE
-        select USB_LIBCOMPOSITE
-        help
-          This fabric is an USB gadget. Two USB protocols are supported that is
-          BBB or BOT (Bulk Only Transport) and UAS (USB Attached SCSI). BOT is
-          advertised on alternative interface 0 (primary) and UAS is on
-          alternative interface 1. Both protocols can work on USB2.0 and USB3.0.
-          UAS utilizes the USB 3.0 feature called streams support.
-
-config USB_G_SERIAL
-        tristate "Serial Gadget (with CDC ACM and CDC OBEX support)"
-        depends on TTY
-        select USB_U_SERIAL
-        select USB_F_ACM
-        select USB_F_SERIAL
-        select USB_F_OBEX
-        select USB_LIBCOMPOSITE
-        help
-          The Serial Gadget talks to the Linux-USB generic serial driver.
-          This driver supports a CDC-ACM module option, which can be used
-          to interoperate with MS-Windows hosts or with the Linux-USB
-          "cdc-acm" driver.
-
-          This driver also supports a CDC-OBEX option.  You will need a
-          user space OBEX server talking to /dev/ttyGS*, since the kernel
-          itself doesn't implement the OBEX protocol.
-
-          Say "y" to link the driver statically, or "m" to build a
-          dynamically linked module called "g_serial".
-
-          For more information, see Documentation/usb/gadget_serial.txt
-          which includes instructions and a "driver info file" needed to
-          make MS-Windows work with CDC ACM.
-
-config USB_MIDI_GADGET
-        tristate "MIDI Gadget"
-        depends on SND
-        select USB_LIBCOMPOSITE
-        select SND_RAWMIDI
-        help
-          The MIDI Gadget acts as a USB Audio device, with one MIDI
-          input and one MIDI output. These MIDI jacks appear as
-          a sound "card" in the ALSA sound system. Other MIDI
-          connections can then be made on the gadget system, using
-          ALSA's aconnect utility etc.
-
-          Say "y" to link the driver statically, or "m" to build a
-          dynamically linked module called "g_midi".
-
-config USB_G_PRINTER
-        tristate "Printer Gadget"
-        select USB_LIBCOMPOSITE
-        help
-          The Printer Gadget channels data between the USB host and a
-          userspace program driving the print engine. The user space
-          program reads and writes the device file /dev/g_printer to
-          receive or send printer data. It can use ioctl calls to
-          the device file to get or set printer status.
-
-          Say "y" to link the driver statically, or "m" to build a
-          dynamically linked module called "g_printer".
-
-          For more information, see Documentation/usb/gadget_printer.txt
-          which includes sample code for accessing the device file.
-
-if TTY
-
-config USB_CDC_COMPOSITE
-        tristate "CDC Composite Device (Ethernet and ACM)"
-        depends on NET
-        select USB_LIBCOMPOSITE
-        select USB_U_SERIAL
-        select USB_U_ETHER
-        select USB_F_ACM
-        select USB_F_ECM
-        help
-          This driver provides two functions in one configuration:
-          a CDC Ethernet (ECM) link, and a CDC ACM (serial port) link.
-
-          This driver requires four bulk and two interrupt endpoints,
-          plus the ability to handle altsettings.  Not all peripheral
-          controllers are that capable.
-
-          Say "y" to link the driver statically, or "m" to build a
-          dynamically linked module.
-
-config USB_G_NOKIA
-        tristate "Nokia composite gadget"
-        depends on PHONET
-        select USB_LIBCOMPOSITE
-        select USB_U_SERIAL
-        select USB_U_ETHER
-        select USB_F_ACM
-        select USB_F_OBEX
-        select USB_F_PHONET
-        select USB_F_ECM
-        help
-          The Nokia composite gadget provides support for acm, obex
-          and phonet in only one composite gadget driver.
-
-          It's only really useful for N900 hardware. If you're building
-          a kernel for N900, say Y or M here. If unsure, say N.
-
-config USB_G_ACM_MS
-        tristate "CDC Composite Device (ACM and mass storage)"
-        depends on BLOCK
-        select USB_LIBCOMPOSITE
-        select USB_U_SERIAL
-        select USB_F_ACM
-        select USB_F_MASS_STORAGE
-        help
-          This driver provides two functions in one configuration:
-          a mass storage, and a CDC ACM (serial port) link.
-
-          Say "y" to link the driver statically, or "m" to build a
-          dynamically linked module called "g_acm_ms".
-
-config USB_G_MULTI
-        tristate "Multifunction Composite Gadget"
-        depends on BLOCK && NET
-        select USB_G_MULTI_CDC if !USB_G_MULTI_RNDIS
-        select USB_LIBCOMPOSITE
-        select USB_U_SERIAL
-        select USB_U_ETHER
-        select USB_F_ACM
-        select USB_F_MASS_STORAGE
-        help
-          The Multifunction Composite Gadget provides Ethernet (RNDIS
-          and/or CDC Ethernet), mass storage and ACM serial link
-          interfaces.
-
-          You will be asked to choose which of the two configurations is
-          to be available in the gadget.  At least one configuration must
-          be chosen to make the gadget usable.  Selecting more than one
-          configuration will prevent Windows from automatically detecting
-          the gadget as a composite gadget, so an INF file will be needed to
-          use the gadget.
-
-          Say "y" to link the driver statically, or "m" to build a
-          dynamically linked module called "g_multi".
-
-config USB_G_MULTI_RNDIS
-        bool "RNDIS + CDC Serial + Storage configuration"
-        depends on USB_G_MULTI
-        select USB_F_RNDIS
-        default y
-        help
-          This option enables a configuration with RNDIS, CDC Serial and
-          Mass Storage functions available in the Multifunction Composite
-          Gadget.  This is the configuration dedicated for Windows since RNDIS
-          is Microsoft's protocol.
-
-          If unsure, say "y".
-
-config USB_G_MULTI_CDC
-        bool "CDC Ethernet + CDC Serial + Storage configuration"
-        depends on USB_G_MULTI
-        default n
-        select USB_F_ECM
-        help
-          This option enables a configuration with CDC Ethernet (ECM), CDC
-          Serial and Mass Storage functions available in the Multifunction
-          Composite Gadget.
-
-          If unsure, say "y".
-
-endif # TTY
-
-config USB_G_HID
-        tristate "HID Gadget"
-        select USB_LIBCOMPOSITE
-        help
-          The HID gadget driver provides generic emulation of USB
-          Human Interface Devices (HID).
-
-          For more information, see Documentation/usb/gadget_hid.txt which
-          includes sample code for accessing the device files.
-
-          Say "y" to link the driver statically, or "m" to build a
-          dynamically linked module called "g_hid".
-
-# Standalone / single function gadgets
-config USB_G_DBGP
-        tristate "EHCI Debug Device Gadget"
-        depends on TTY
-        select USB_LIBCOMPOSITE
-        help
-          This gadget emulates an EHCI Debug device. This is useful when you want
-          to interact with an EHCI Debug Port.
-
-          Say "y" to link the driver statically, or "m" to build a
-          dynamically linked module called "g_dbgp".
-
-if USB_G_DBGP
-choice
-        prompt "EHCI Debug Device mode"
-        default USB_G_DBGP_SERIAL
-
-config USB_G_DBGP_PRINTK
-        depends on USB_G_DBGP
-        bool "printk"
-        help
-          Directly printk() received data. No interaction.
-
-config USB_G_DBGP_SERIAL
-        depends on USB_G_DBGP
-        select USB_U_SERIAL
-        bool "serial"
-        help
-          Userland can interact using /dev/ttyGSxxx.
-endchoice
-endif
-
-# put drivers that need isochronous transfer support (for audio
-# or video class gadget drivers), or specific hardware, here.
-config USB_G_WEBCAM
-        tristate "USB Webcam Gadget"
-        depends on VIDEO_DEV
-        select USB_LIBCOMPOSITE
-        select VIDEOBUF2_VMALLOC
-        help
-          The Webcam Gadget acts as a composite USB Audio and Video Class
-          device. It provides a userspace API to process UVC control requests
-          and stream video data to the host.
-
-          Say "y" to link the driver statically, or "m" to build a
-          dynamically linked module called "g_webcam".
+source "drivers/usb/gadget/legacy/Kconfig"
 
 endchoice