Compile uvc_queue, uvc_v4l2, uvc_video separately so that later they can
be all combined in a separately compiled f_uvc.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx>
---
drivers/usb/gadget/function/f_uvc.c | 2 ++
drivers/usb/gadget/function/f_uvc.h | 8 +++++++
drivers/usb/gadget/function/uvc.h | 1 +
drivers/usb/gadget/function/uvc_queue.c | 39 ++++++++++++++-------------------
drivers/usb/gadget/function/uvc_queue.h | 33 ++++++++++++++++++++++++++++
drivers/usb/gadget/function/uvc_v4l2.c | 4 +++-
drivers/usb/gadget/function/uvc_v4l2.h | 21 ++++++++++++++++++
drivers/usb/gadget/function/uvc_video.c | 10 ++++-----
drivers/usb/gadget/function/uvc_video.h | 24 ++++++++++++++++++++
drivers/usb/gadget/legacy/Makefile | 2 +-
drivers/usb/gadget/legacy/webcam.c | 6 +----
11 files changed, 115 insertions(+), 35 deletions(-)
create mode 100644 drivers/usb/gadget/function/uvc_v4l2.h
create mode 100644 drivers/usb/gadget/function/uvc_video.h
diff --git a/drivers/usb/gadget/function/f_uvc.c b/drivers/usb/gadget/function/f_uvc.c
index 520cd4a..af8f6ea 100644
--- a/drivers/usb/gadget/function/f_uvc.c
+++ b/drivers/usb/gadget/function/f_uvc.c
@@ -27,6 +27,8 @@
#include <media/v4l2-event.h>
#include "uvc.h"
+#include "uvc_v4l2.h"
+#include "uvc_video.h"
unsigned int uvc_gadget_trace_param;
static unsigned int streaming_interval;
diff --git a/drivers/usb/gadget/function/f_uvc.h b/drivers/usb/gadget/function/f_uvc.h
index 74b9602..71b38dd 100644
--- a/drivers/usb/gadget/function/f_uvc.h
+++ b/drivers/usb/gadget/function/f_uvc.h
@@ -16,6 +16,14 @@
#include <linux/usb/composite.h>
#include <linux/usb/video.h>
+#include "uvc.h"
+
+void uvc_function_setup_continue(struct uvc_device *uvc);
+
+void uvc_function_connect(struct uvc_device *uvc);
+
+void uvc_function_disconnect(struct uvc_device *uvc);
+
int uvc_bind_config(struct usb_configuration *c,
const struct uvc_descriptor_header * const *fs_control,
const struct uvc_descriptor_header * const *hs_control,
diff --git a/drivers/usb/gadget/function/uvc.h b/drivers/usb/gadget/function/uvc.h
index 7a9111d..e7c7ba0 100644
--- a/drivers/usb/gadget/function/uvc.h
+++ b/drivers/usb/gadget/function/uvc.h
@@ -53,6 +53,7 @@ struct uvc_event
#ifdef __KERNEL__
#include <linux/usb.h> /* For usb_endpoint_* */
+#include <linux/usb/composite.h>
#include <linux/usb/gadget.h>
#include <linux/videodev2.h>
#include <linux/version.h>
diff --git a/drivers/usb/gadget/function/uvc_queue.c b/drivers/usb/gadget/function/uvc_queue.c
index d0ecb17..900bad7 100644
--- a/drivers/usb/gadget/function/uvc_queue.c
+++ b/drivers/usb/gadget/function/uvc_queue.c
@@ -126,8 +126,7 @@ static struct vb2_ops uvc_queue_qops = {
.wait_finish = uvc_wait_finish,
};
-static int uvcg_queue_init(struct uvc_video_queue *queue,
- enum v4l2_buf_type type)
+int uvcg_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type)
{
int ret;
@@ -154,7 +153,7 @@ static int uvcg_queue_init(struct uvc_video_queue *queue,
/*
* Free the video buffers.
*/
-static void uvcg_free_buffers(struct uvc_video_queue *queue)
+void uvcg_free_buffers(struct uvc_video_queue *queue)
{
mutex_lock(&queue->mutex);
vb2_queue_release(&queue->queue);
@@ -164,7 +163,7 @@ static void uvcg_free_buffers(struct uvc_video_queue *queue)
/*
* Allocate the video buffers.
*/
-static int uvcg_alloc_buffers(struct uvc_video_queue *queue,
+int uvcg_alloc_buffers(struct uvc_video_queue *queue,
struct v4l2_requestbuffers *rb)
{
int ret;
@@ -176,8 +175,7 @@ static int uvcg_alloc_buffers(struct uvc_video_queue *queue,
return ret ? ret : rb->count;
}
-static int uvcg_query_buffer(struct uvc_video_queue *queue,
- struct v4l2_buffer *buf)
+int uvcg_query_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *buf)
{
int ret;
@@ -188,8 +186,7 @@ static int uvcg_query_buffer(struct uvc_video_queue *queue,
return ret;
}
-static int uvcg_queue_buffer(struct uvc_video_queue *queue,
- struct v4l2_buffer *buf)
+int uvcg_queue_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *buf)
{
unsigned long flags;
int ret;
@@ -213,8 +210,8 @@ done:
* Dequeue a video buffer. If nonblocking is false, block until a buffer is
* available.
*/
-static int uvcg_dequeue_buffer(struct uvc_video_queue *queue,
- struct v4l2_buffer *buf, int nonblocking)
+int uvcg_dequeue_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *buf,
+ int nonblocking)
{
int ret;
@@ -231,8 +228,8 @@ static int uvcg_dequeue_buffer(struct uvc_video_queue *queue,
* This function implements video queue polling and is intended to be used by
* the device poll handler.
*/
-static unsigned int uvcg_queue_poll(struct uvc_video_queue *queue,
- struct file *file, poll_table *wait)
+unsigned int uvcg_queue_poll(struct uvc_video_queue *queue, struct file *file,
+ poll_table *wait)
{
unsigned int ret;
@@ -243,8 +240,7 @@ static unsigned int uvcg_queue_poll(struct uvc_video_queue *queue,
return ret;
}
-static int uvcg_queue_mmap(struct uvc_video_queue *queue,
- struct vm_area_struct *vma)
+int uvcg_queue_mmap(struct uvc_video_queue *queue, struct vm_area_struct *vma)
{
int ret;
@@ -261,9 +257,8 @@ static int uvcg_queue_mmap(struct uvc_video_queue *queue,
*
* NO-MMU arch need this function to make mmap() work correctly.
*/
-static unsigned long uvcg_queue_get_unmapped_area(
- struct uvc_video_queue *queue,
- unsigned long pgoff)
+unsigned long uvcg_queue_get_unmapped_area(struct uvc_video_queue *queue,
+ unsigned long pgoff)
{
unsigned long ret;
@@ -286,7 +281,7 @@ static unsigned long uvcg_queue_get_unmapped_area(
* This function acquires the irq spinlock and can be called from interrupt
* context.
*/
-static void uvcg_queue_cancel(struct uvc_video_queue *queue, int disconnect)
+void uvcg_queue_cancel(struct uvc_video_queue *queue, int disconnect)
{
struct uvc_buffer *buf;
unsigned long flags;
@@ -327,7 +322,7 @@ static void uvcg_queue_cancel(struct uvc_video_queue *queue, int disconnect)
* This function can't be called from interrupt context. Use
* uvc_queue_cancel() instead.
*/
-static int uvcg_queue_enable(struct uvc_video_queue *queue, int enable)
+int uvcg_queue_enable(struct uvc_video_queue *queue, int enable)
{
unsigned long flags;
int ret = 0;
@@ -364,8 +359,8 @@ done:
}
/* called with &queue_irqlock held.. */
-static struct uvc_buffer *uvcg_queue_next_buffer(struct uvc_video_queue *queue,
- struct uvc_buffer *buf)
+struct uvc_buffer *uvcg_queue_next_buffer(struct uvc_video_queue *queue,
+ struct uvc_buffer *buf)
{
struct uvc_buffer *nextbuf;
@@ -393,7 +388,7 @@ static struct uvc_buffer *uvcg_queue_next_buffer(struct uvc_video_queue *queue,
return nextbuf;
}
-static struct uvc_buffer *uvc_queue_head(struct uvc_video_queue *queue)
+struct uvc_buffer *uvc_queue_head(struct uvc_video_queue *queue)
{
struct uvc_buffer *buf = NULL;
diff --git a/drivers/usb/gadget/function/uvc_queue.h b/drivers/usb/gadget/function/uvc_queue.h
index 8e76ce9..90f223e 100644
--- a/drivers/usb/gadget/function/uvc_queue.h
+++ b/drivers/usb/gadget/function/uvc_queue.h
@@ -57,6 +57,39 @@ static inline int uvc_queue_streaming(struct uvc_video_queue *queue)
return vb2_is_streaming(&queue->queue);
}
+int uvcg_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type);
+
+void uvcg_free_buffers(struct uvc_video_queue *queue);
+
+int uvcg_alloc_buffers(struct uvc_video_queue *queue,
+ struct v4l2_requestbuffers *rb);
+
+int uvcg_query_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *buf);
+
+int uvcg_queue_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *buf);
+
+int uvcg_dequeue_buffer(struct uvc_video_queue *queue,
+ struct v4l2_buffer *buf, int nonblocking);
+
+unsigned int uvcg_queue_poll(struct uvc_video_queue *queue,
+ struct file *file, poll_table *wait);
+
+int uvcg_queue_mmap(struct uvc_video_queue *queue, struct vm_area_struct *vma);
+
+#ifndef CONFIG_MMU
+unsigned long uvcg_queue_get_unmapped_area(struct uvc_video_queue *queue,
+ unsigned long pgoff);
+#endif /* CONFIG_MMU */
+
+void uvcg_queue_cancel(struct uvc_video_queue *queue, int disconnect);
+
+int uvcg_queue_enable(struct uvc_video_queue *queue, int enable);
+
+struct uvc_buffer *uvcg_queue_next_buffer(struct uvc_video_queue *queue,
+ struct uvc_buffer *buf);
+
+struct uvc_buffer *uvc_queue_head(struct uvc_video_queue *queue);
+
#endif /* __KERNEL__ */
#endif /* _UVC_QUEUE_H_ */
diff --git a/drivers/usb/gadget/function/uvc_v4l2.c b/drivers/usb/gadget/function/uvc_v4l2.c
index d7c7f55..245cccd 100644
--- a/drivers/usb/gadget/function/uvc_v4l2.c
+++ b/drivers/usb/gadget/function/uvc_v4l2.c
@@ -23,8 +23,10 @@
#include <media/v4l2-event.h>
#include <media/v4l2-ioctl.h>
+#include "f_uvc.h"
#include "uvc.h"
#include "uvc_queue.h"
+#include "uvc_video.h"
/* --------------------------------------------------------------------------
* Requests handling
@@ -351,7 +353,7 @@ static unsigned long uvc_v4l2_get_unmapped_area(struct file *file,
}
#endif
-static struct v4l2_file_operations uvc_v4l2_fops = {
+struct v4l2_file_operations uvc_v4l2_fops = {
.owner = THIS_MODULE,
.open = uvc_v4l2_open,
.release = uvc_v4l2_release,
diff --git a/drivers/usb/gadget/function/uvc_v4l2.h b/drivers/usb/gadget/function/uvc_v4l2.h
new file mode 100644
index 0000000..ebcb1d1
--- /dev/null
+++ b/drivers/usb/gadget/function/uvc_v4l2.h
@@ -0,0 +1,21 @@
+/*
+ * uvc_v4l2.h -- USB Video Class Gadget driver
+ *
+ * Copyright (C) 2009-2010
+ * Laurent Pinchart (laurent.pinchart@xxxxxxxxxxxxxxxx)
+ *
+ * Copyright (c) 2013 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ * Author: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __UVC__V4L2__H__
+#define __UVC__V4L2__H__
+
+extern struct v4l2_file_operations uvc_v4l2_fops;
+
+#endif /* __UVC__V4L2__H__ */
diff --git a/drivers/usb/gadget/function/uvc_video.c b/drivers/usb/gadget/function/uvc_video.c
index c93fd3ff..6339df9 100644
--- a/drivers/usb/gadget/function/uvc_video.c
+++ b/drivers/usb/gadget/function/uvc_video.c
@@ -15,6 +15,7 @@
#include <linux/errno.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
+#include <linux/usb/video.h>
#include <media/v4l2-dev.h>
@@ -278,8 +279,7 @@ error:
* This function fills the available USB requests (listed in req_free) with
* video data from the queued buffers.
*/
-static int
-uvc_video_pump(struct uvc_video *video)
+int uvc_video_pump(struct uvc_video *video)
{
struct usb_request *req;
struct uvc_buffer *buf;
@@ -336,8 +336,7 @@ uvc_video_pump(struct uvc_video *video)
/*
* Enable or disable the video stream.
*/
-static int
-uvcg_video_enable(struct uvc_video *video, int enable)
+int uvcg_video_enable(struct uvc_video *video, int enable)
{
unsigned int i;
int ret;
@@ -375,8 +374,7 @@ uvcg_video_enable(struct uvc_video *video, int enable)
/*
* Initialize the UVC video stream.
*/
-static int
-uvcg_video_init(struct uvc_video *video)
+int uvcg_video_init(struct uvc_video *video)
{
INIT_LIST_HEAD(&video->req_free);
spin_lock_init(&video->req_lock);
diff --git a/drivers/usb/gadget/function/uvc_video.h b/drivers/usb/gadget/function/uvc_video.h
new file mode 100644
index 0000000..8d32bdb
--- /dev/null
+++ b/drivers/usb/gadget/function/uvc_video.h
@@ -0,0 +1,24 @@
+/*
+ * uvc_video.h -- USB Video Class Gadget driver
+ *
+ * Copyright (C) 2009-2010
+ * Laurent Pinchart (laurent.pinchart@xxxxxxxxxxxxxxxx)
+ *
+ * Copyright (c) 2013 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ * Author: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __UVC__VIDEO__H__
+#define __UVC__VIDEO__H__
+
+int uvc_video_pump(struct uvc_video *video);
+
+int uvcg_video_enable(struct uvc_video *video, int enable);
+
+int uvcg_video_init(struct uvc_video *video);
+
+#endif /* __UVC__VIDEO__H__ */
diff --git a/drivers/usb/gadget/legacy/Makefile b/drivers/usb/gadget/legacy/Makefile
index a11aad5..99ce125 100644
--- a/drivers/usb/gadget/legacy/Makefile
+++ b/drivers/usb/gadget/legacy/Makefile
@@ -19,7 +19,7 @@ g_multi-y := multi.o
g_hid-y := hid.o
g_dbgp-y := dbgp.o
g_nokia-y := nokia.o
-g_webcam-y := webcam.o
+g_webcam-y := webcam.o ../function/uvc_queue.o ../function/uvc_v4l2.o ../function/uvc_video.o
g_ncm-y := ncm.o
g_acm_ms-y := acm_ms.o
g_tcm_usb_gadget-y := tcm_usb_gadget.o
diff --git a/drivers/usb/gadget/legacy/webcam.c b/drivers/usb/gadget/legacy/webcam.c
index f826622..5d02849 100644
--- a/drivers/usb/gadget/legacy/webcam.c
+++ b/drivers/usb/gadget/legacy/webcam.c
@@ -12,10 +12,9 @@
#include <linux/kernel.h>
#include <linux/device.h>
+#include <linux/module.h>
#include <linux/usb/video.h>
-#include "f_uvc.h"
-
/*
* Kbuild is not very cooperative with respect to linking separately
* compiled library objects into one module. So for now we won't use
@@ -23,9 +22,6 @@
* the runtime footprint, and giving us at least some parts of what
* a "gcc --combine ... part1.c part2.c part3.c ... " build would.
*/
-#include "uvc_queue.c"
-#include "uvc_video.c"
-#include "uvc_v4l2.c"
#include "f_uvc.c"
USB_GADGET_COMPOSITE_OPTIONS();
--
1.9.1
--
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