usb: gadget: Gadget directory cleanup - group usb functions

The drivers/usb/gadget directory contains many files.
Files which are related can be distributed into separate directories.
This patch moves the USB functions implementations into a separate directory.

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

1 files changed, 0 insertions, 365 deletions

diff --git a/drivers/usb/gadget/uvc_v4l2.c b/drivers/usb/gadget/uvc_v4l2.c
deleted file mode 100644
index ad48e81155e2..000000000000
--- a/drivers/usb/gadget/uvc_v4l2.c
+++ /dev/null
@@ -1,365 +0,0 @@
-/*
- *	uvc_v4l2.c  --  USB Video Class Gadget driver
- *
- *	Copyright (C) 2009-2010
- *	    Laurent Pinchart (laurent.pinchart@ideasonboard.com)
- *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/device.h>
-#include <linux/errno.h>
-#include <linux/list.h>
-#include <linux/mutex.h>
-#include <linux/videodev2.h>
-#include <linux/vmalloc.h>
-#include <linux/wait.h>
-
-#include <media/v4l2-dev.h>
-#include <media/v4l2-event.h>
-#include <media/v4l2-ioctl.h>
-
-#include "uvc.h"
-#include "uvc_queue.h"
-
-/* --------------------------------------------------------------------------
- * Requests handling
- */
-
-static int
-uvc_send_response(struct uvc_device *uvc, struct uvc_request_data *data)
-{
-	struct usb_composite_dev *cdev = uvc->func.config->cdev;
-	struct usb_request *req = uvc->control_req;
-
-	if (data->length < 0)
-		return usb_ep_set_halt(cdev->gadget->ep0);
-
-	req->length = min_t(unsigned int, uvc->event_length, data->length);
-	req->zero = data->length < uvc->event_length;
-
-	memcpy(req->buf, data->data, req->length);
-
-	return usb_ep_queue(cdev->gadget->ep0, req, GFP_KERNEL);
-}
-
-/* --------------------------------------------------------------------------
- * V4L2
- */
-
-struct uvc_format
-{
-	u8 bpp;
-	u32 fcc;
-};
-
-static struct uvc_format uvc_formats[] = {
-	{ 16, V4L2_PIX_FMT_YUYV  },
-	{ 0,  V4L2_PIX_FMT_MJPEG },
-};
-
-static int
-uvc_v4l2_get_format(struct uvc_video *video, struct v4l2_format *fmt)
-{
-	fmt->fmt.pix.pixelformat = video->fcc;
-	fmt->fmt.pix.width = video->width;
-	fmt->fmt.pix.height = video->height;
-	fmt->fmt.pix.field = V4L2_FIELD_NONE;
-	fmt->fmt.pix.bytesperline = video->bpp * video->width / 8;
-	fmt->fmt.pix.sizeimage = video->imagesize;
-	fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB;
-	fmt->fmt.pix.priv = 0;
-
-	return 0;
-}
-
-static int
-uvc_v4l2_set_format(struct uvc_video *video, struct v4l2_format *fmt)
-{
-	struct uvc_format *format;
-	unsigned int imagesize;
-	unsigned int bpl;
-	unsigned int i;
-
-	for (i = 0; i < ARRAY_SIZE(uvc_formats); ++i) {
-		format = &uvc_formats[i];
-		if (format->fcc == fmt->fmt.pix.pixelformat)
-			break;
-	}
-
-	if (i == ARRAY_SIZE(uvc_formats)) {
-		printk(KERN_INFO "Unsupported format 0x%08x.\n",
-			fmt->fmt.pix.pixelformat);
-		return -EINVAL;
-	}
-
-	bpl = format->bpp * fmt->fmt.pix.width / 8;
-	imagesize = bpl ? bpl * fmt->fmt.pix.height : fmt->fmt.pix.sizeimage;
-
-	video->fcc = format->fcc;
-	video->bpp = format->bpp;
-	video->width = fmt->fmt.pix.width;
-	video->height = fmt->fmt.pix.height;
-	video->imagesize = imagesize;
-
-	fmt->fmt.pix.field = V4L2_FIELD_NONE;
-	fmt->fmt.pix.bytesperline = bpl;
-	fmt->fmt.pix.sizeimage = imagesize;
-	fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SRGB;
-	fmt->fmt.pix.priv = 0;
-
-	return 0;
-}
-
-static int
-uvc_v4l2_open(struct file *file)
-{
-	struct video_device *vdev = video_devdata(file);
-	struct uvc_device *uvc = video_get_drvdata(vdev);
-	struct uvc_file_handle *handle;
-
-	handle = kzalloc(sizeof(*handle), GFP_KERNEL);
-	if (handle == NULL)
-		return -ENOMEM;
-
-	v4l2_fh_init(&handle->vfh, vdev);
-	v4l2_fh_add(&handle->vfh);
-
-	handle->device = &uvc->video;
-	file->private_data = &handle->vfh;
-
-	uvc_function_connect(uvc);
-	return 0;
-}
-
-static int
-uvc_v4l2_release(struct file *file)
-{
-	struct video_device *vdev = video_devdata(file);
-	struct uvc_device *uvc = video_get_drvdata(vdev);
-	struct uvc_file_handle *handle = to_uvc_file_handle(file->private_data);
-	struct uvc_video *video = handle->device;
-
-	uvc_function_disconnect(uvc);
-
-	uvc_video_enable(video, 0);
-	uvc_free_buffers(&video->queue);
-
-	file->private_data = NULL;
-	v4l2_fh_del(&handle->vfh);
-	v4l2_fh_exit(&handle->vfh);
-	kfree(handle);
-
-	return 0;
-}
-
-static long
-uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
-{
-	struct video_device *vdev = video_devdata(file);
-	struct uvc_device *uvc = video_get_drvdata(vdev);
-	struct uvc_file_handle *handle = to_uvc_file_handle(file->private_data);
-	struct usb_composite_dev *cdev = uvc->func.config->cdev;
-	struct uvc_video *video = &uvc->video;
-	int ret = 0;
-
-	switch (cmd) {
-	/* Query capabilities */
-	case VIDIOC_QUERYCAP:
-	{
-		struct v4l2_capability *cap = arg;
-
-		memset(cap, 0, sizeof *cap);
-		strlcpy(cap->driver, "g_uvc", sizeof(cap->driver));
-		strlcpy(cap->card, cdev->gadget->name, sizeof(cap->card));
-		strlcpy(cap->bus_info, dev_name(&cdev->gadget->dev),
-			sizeof cap->bus_info);
-		cap->version = DRIVER_VERSION_NUMBER;
-		cap->capabilities = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING;
-		break;
-	}
-
-	/* Get & Set format */
-	case VIDIOC_G_FMT:
-	{
-		struct v4l2_format *fmt = arg;
-
-		if (fmt->type != video->queue.queue.type)
-			return -EINVAL;
-
-		return uvc_v4l2_get_format(video, fmt);
-	}
-
-	case VIDIOC_S_FMT:
-	{
-		struct v4l2_format *fmt = arg;
-
-		if (fmt->type != video->queue.queue.type)
-			return -EINVAL;
-
-		return uvc_v4l2_set_format(video, fmt);
-	}
-
-	/* Buffers & streaming */
-	case VIDIOC_REQBUFS:
-	{
-		struct v4l2_requestbuffers *rb = arg;
-
-		if (rb->type != video->queue.queue.type)
-			return -EINVAL;
-
-		ret = uvc_alloc_buffers(&video->queue, rb);
-		if (ret < 0)
-			return ret;
-
-		ret = 0;
-		break;
-	}
-
-	case VIDIOC_QUERYBUF:
-	{
-		struct v4l2_buffer *buf = arg;
-
-		return uvc_query_buffer(&video->queue, buf);
-	}
-
-	case VIDIOC_QBUF:
-		if ((ret = uvc_queue_buffer(&video->queue, arg)) < 0)
-			return ret;
-
-		return uvc_video_pump(video);
-
-	case VIDIOC_DQBUF:
-		return uvc_dequeue_buffer(&video->queue, arg,
-			file->f_flags & O_NONBLOCK);
-
-	case VIDIOC_STREAMON:
-	{
-		int *type = arg;
-
-		if (*type != video->queue.queue.type)
-			return -EINVAL;
-
-		/* Enable UVC video. */
-		ret = uvc_video_enable(video, 1);
-		if (ret < 0)
-			return ret;
-
-		/*
-		 * Complete the alternate setting selection setup phase now that
-		 * userspace is ready to provide video frames.
-		 */
-		uvc_function_setup_continue(uvc);
-		uvc->state = UVC_STATE_STREAMING;
-
-		return 0;
-	}
-
-	case VIDIOC_STREAMOFF:
-	{
-		int *type = arg;
-
-		if (*type != video->queue.queue.type)
-			return -EINVAL;
-
-		return uvc_video_enable(video, 0);
-	}
-
-	/* Events */
-	case VIDIOC_DQEVENT:
-	{
-		struct v4l2_event *event = arg;
-
-		ret = v4l2_event_dequeue(&handle->vfh, event,
-					 file->f_flags & O_NONBLOCK);
-		if (ret == 0 && event->type == UVC_EVENT_SETUP) {
-			struct uvc_event *uvc_event = (void *)&event->u.data;
-
-			/* Tell the complete callback to generate an event for
-			 * the next request that will be enqueued by
-			 * uvc_event_write.
-			 */
-			uvc->event_setup_out =
-				!(uvc_event->req.bRequestType & USB_DIR_IN);
-			uvc->event_length = uvc_event->req.wLength;
-		}
-
-		return ret;
-	}
-
-	case VIDIOC_SUBSCRIBE_EVENT:
-	{
-		struct v4l2_event_subscription *sub = arg;
-
-		if (sub->type < UVC_EVENT_FIRST || sub->type > UVC_EVENT_LAST)
-			return -EINVAL;
-
-		return v4l2_event_subscribe(&handle->vfh, arg, 2, NULL);
-	}
-
-	case VIDIOC_UNSUBSCRIBE_EVENT:
-		return v4l2_event_unsubscribe(&handle->vfh, arg);
-
-	case UVCIOC_SEND_RESPONSE:
-		ret = uvc_send_response(uvc, arg);
-		break;
-
-	default:
-		return -ENOIOCTLCMD;
-	}
-
-	return ret;
-}
-
-static long
-uvc_v4l2_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
-	return video_usercopy(file, cmd, arg, uvc_v4l2_do_ioctl);
-}
-
-static int
-uvc_v4l2_mmap(struct file *file, struct vm_area_struct *vma)
-{
-	struct video_device *vdev = video_devdata(file);
-	struct uvc_device *uvc = video_get_drvdata(vdev);
-
-	return uvc_queue_mmap(&uvc->video.queue, vma);
-}
-
-static unsigned int
-uvc_v4l2_poll(struct file *file, poll_table *wait)
-{
-	struct video_device *vdev = video_devdata(file);
-	struct uvc_device *uvc = video_get_drvdata(vdev);
-
-	return uvc_queue_poll(&uvc->video.queue, file, wait);
-}
-
-#ifndef CONFIG_MMU
-static unsigned long uvc_v4l2_get_unmapped_area(struct file *file,
-		unsigned long addr, unsigned long len, unsigned long pgoff,
-		unsigned long flags)
-{
-	struct video_device *vdev = video_devdata(file);
-	struct uvc_device *uvc = video_get_drvdata(vdev);
-
-	return uvc_queue_get_unmapped_area(&uvc->video.queue, pgoff);
-}
-#endif
-
-static struct v4l2_file_operations uvc_v4l2_fops = {
-	.owner		= THIS_MODULE,
-	.open		= uvc_v4l2_open,
-	.release	= uvc_v4l2_release,
-	.ioctl		= uvc_v4l2_ioctl,
-	.mmap		= uvc_v4l2_mmap,
-	.poll		= uvc_v4l2_poll,
-#ifndef CONFIG_MMU
-	.get_unmapped_area = uvc_v4l2_get_unmapped_area,
-#endif
-};
-