diff --git a/drivers/usb/gadget/f_uvc.c b/drivers/usb/gadget/f_uvc.c
index fc2611f8b326285f4e848c2910a2f2cce5a9b151..dbe6db0184fd043eb3e4bb8a10499c34fea96afa 100644
--- a/drivers/usb/gadget/f_uvc.c
+++ b/drivers/usb/gadget/f_uvc.c
@@ -28,7 +28,7 @@
#include "uvc.h"
-unsigned int uvc_trace_param;
+unsigned int uvc_gadget_trace_param;
/* --------------------------------------------------------------------------
* Function descriptors
@@ -656,6 +656,6 @@ error:
return ret;
}
-module_param_named(trace, uvc_trace_param, uint, S_IRUGO|S_IWUSR);
+module_param_named(trace, uvc_gadget_trace_param, uint, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(trace, "Trace level bitmask");
diff --git a/drivers/usb/gadget/uvc.h b/drivers/usb/gadget/uvc.h
index 0a705e63c9365fe1e8f3960c4a214a13d55747cb..e92454cddd7de095709c791aee97b715d0e99f33 100644
--- a/drivers/usb/gadget/uvc.h
+++ b/drivers/usb/gadget/uvc.h
@@ -107,11 +107,11 @@ struct uvc_streaming_control {
#define UVC_WARN_MINMAX 0
#define UVC_WARN_PROBE_DEF 1
-extern unsigned int uvc_trace_param;
+extern unsigned int uvc_gadget_trace_param;
#define uvc_trace(flag, msg...) \
do { \
- if (uvc_trace_param & flag) \
+ if (uvc_gadget_trace_param & flag) \
printk(KERN_DEBUG "uvcvideo: " msg); \
} while (0)
@@ -220,16 +220,10 @@ struct uvc_file_handle
#define to_uvc_file_handle(handle) \
container_of(handle, struct uvc_file_handle, vfh)
-extern struct v4l2_file_operations uvc_v4l2_fops;
-
/* ------------------------------------------------------------------------
* Functions
*/
-extern int uvc_video_enable(struct uvc_video *video, int enable);
-extern int uvc_video_init(struct uvc_video *video);
-extern int uvc_video_pump(struct uvc_video *video);
-
extern void uvc_endpoint_stream(struct uvc_device *dev);
extern void uvc_function_connect(struct uvc_device *uvc);
diff --git a/drivers/usb/gadget/uvc_queue.c b/drivers/usb/gadget/uvc_queue.c
index 43891991bf2193ef26fafafa14b670cdce3029c6..f7395ac5dc17e616ef9812f1aa58f6d4b775cc2a 100644
--- a/drivers/usb/gadget/uvc_queue.c
+++ b/drivers/usb/gadget/uvc_queue.c
@@ -78,7 +78,8 @@
*
*/
-void uvc_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type)
+static void
+uvc_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type)
{
mutex_init(&queue->mutex);
spin_lock_init(&queue->irqlock);
@@ -87,6 +88,28 @@ void uvc_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type)
queue->type = type;
}
+/*
+ * Free the video buffers.
+ *
+ * This function must be called with the queue lock held.
+ */
+static int uvc_free_buffers(struct uvc_video_queue *queue)
+{
+ unsigned int i;
+
+ for (i = 0; i < queue->count; ++i) {
+ if (queue->buffer[i].vma_use_count != 0)
+ return -EBUSY;
+ }
+
+ if (queue->count) {
+ vfree(queue->mem);
+ queue->count = 0;
+ }
+
+ return 0;
+}
+
/*
* Allocate the video buffers.
*
@@ -95,8 +118,9 @@ void uvc_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type)
*
* Buffers will be individually mapped, so they must all be page aligned.
*/
-int uvc_alloc_buffers(struct uvc_video_queue *queue, unsigned int nbuffers,
- unsigned int buflength)
+static int
+uvc_alloc_buffers(struct uvc_video_queue *queue, unsigned int nbuffers,
+ unsigned int buflength)
{
unsigned int bufsize = PAGE_ALIGN(buflength);
unsigned int i;
@@ -150,28 +174,6 @@ done:
return ret;
}
-/*
- * Free the video buffers.
- *
- * This function must be called with the queue lock held.
- */
-int uvc_free_buffers(struct uvc_video_queue *queue)
-{
- unsigned int i;
-
- for (i = 0; i < queue->count; ++i) {
- if (queue->buffer[i].vma_use_count != 0)
- return -EBUSY;
- }
-
- if (queue->count) {
- vfree(queue->mem);
- queue->count = 0;
- }
-
- return 0;
-}
-
static void __uvc_query_buffer(struct uvc_buffer *buf,
struct v4l2_buffer *v4l2_buf)
{
@@ -195,8 +197,8 @@ static void __uvc_query_buffer(struct uvc_buffer *buf,
}
}
-int uvc_query_buffer(struct uvc_video_queue *queue,
- struct v4l2_buffer *v4l2_buf)
+static int
+uvc_query_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *v4l2_buf)
{
int ret = 0;
@@ -217,8 +219,8 @@ done:
* Queue a video buffer. Attempting to queue a buffer that has already been
* queued will return -EINVAL.
*/
-int uvc_queue_buffer(struct uvc_video_queue *queue,
- struct v4l2_buffer *v4l2_buf)
+static int
+uvc_queue_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *v4l2_buf)
{
struct uvc_buffer *buf;
unsigned long flags;
@@ -298,8 +300,9 @@ static int uvc_queue_waiton(struct uvc_buffer *buf, int nonblocking)
* Dequeue a video buffer. If nonblocking is false, block until a buffer is
* available.
*/
-int uvc_dequeue_buffer(struct uvc_video_queue *queue,
- struct v4l2_buffer *v4l2_buf, int nonblocking)
+static int
+uvc_dequeue_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *v4l2_buf,
+ int nonblocking)
{
struct uvc_buffer *buf;
int ret = 0;
@@ -359,8 +362,9 @@ done:
* This function implements video queue polling and is intended to be used by
* the device poll handler.
*/
-unsigned int uvc_queue_poll(struct uvc_video_queue *queue, struct file *file,
- poll_table *wait)
+static unsigned int
+uvc_queue_poll(struct uvc_video_queue *queue, struct file *file,
+ poll_table *wait)
{
struct uvc_buffer *buf;
unsigned int mask = 0;
@@ -407,7 +411,8 @@ static struct vm_operations_struct uvc_vm_ops = {
* This function implements video buffer memory mapping and is intended to be
* used by the device mmap handler.
*/
-int uvc_queue_mmap(struct uvc_video_queue *queue, struct vm_area_struct *vma)
+static int
+uvc_queue_mmap(struct uvc_video_queue *queue, struct vm_area_struct *vma)
{
struct uvc_buffer *uninitialized_var(buffer);
struct page *page;
@@ -457,6 +462,42 @@ done:
return ret;
}
+/*
+ * Cancel the video buffers queue.
+ *
+ * Cancelling the queue marks all buffers on the irq queue as erroneous,
+ * wakes them up and removes them from the queue.
+ *
+ * If the disconnect parameter is set, further calls to uvc_queue_buffer will
+ * fail with -ENODEV.
+ *
+ * This function acquires the irq spinlock and can be called from interrupt
+ * context.
+ */
+static void uvc_queue_cancel(struct uvc_video_queue *queue, int disconnect)
+{
+ struct uvc_buffer *buf;
+ unsigned long flags;
+
+ spin_lock_irqsave(&queue->irqlock, flags);
+ while (!list_empty(&queue->irqqueue)) {
+ buf = list_first_entry(&queue->irqqueue, struct uvc_buffer,
+ queue);
+ list_del(&buf->queue);
+ buf->state = UVC_BUF_STATE_ERROR;
+ wake_up(&buf->wait);
+ }
+ /* This must be protected by the irqlock spinlock to avoid race
+ * conditions between uvc_queue_buffer and the disconnection event that
+ * could result in an interruptible wait in uvc_dequeue_buffer. Do not
+ * blindly replace this logic by checking for the UVC_DEV_DISCONNECTED
+ * state outside the queue code.
+ */
+ if (disconnect)
+ queue->flags |= UVC_QUEUE_DISCONNECTED;
+ spin_unlock_irqrestore(&queue->irqlock, flags);
+}
+
/*
* Enable or disable the video buffers queue.
*
@@ -474,7 +515,7 @@ done:
* This function can't be called from interrupt context. Use
* uvc_queue_cancel() instead.
*/
-int uvc_queue_enable(struct uvc_video_queue *queue, int enable)
+static int uvc_queue_enable(struct uvc_video_queue *queue, int enable)
{
unsigned int i;
int ret = 0;
@@ -503,44 +544,8 @@ done:
return ret;
}
-/*
- * Cancel the video buffers queue.
- *
- * Cancelling the queue marks all buffers on the irq queue as erroneous,
- * wakes them up and removes them from the queue.
- *
- * If the disconnect parameter is set, further calls to uvc_queue_buffer will
- * fail with -ENODEV.
- *
- * This function acquires the irq spinlock and can be called from interrupt
- * context.
- */
-void uvc_queue_cancel(struct uvc_video_queue *queue, int disconnect)
-{
- struct uvc_buffer *buf;
- unsigned long flags;
-
- spin_lock_irqsave(&queue->irqlock, flags);
- while (!list_empty(&queue->irqqueue)) {
- buf = list_first_entry(&queue->irqqueue, struct uvc_buffer,
- queue);
- list_del(&buf->queue);
- buf->state = UVC_BUF_STATE_ERROR;
- wake_up(&buf->wait);
- }
- /* This must be protected by the irqlock spinlock to avoid race
- * conditions between uvc_queue_buffer and the disconnection event that
- * could result in an interruptible wait in uvc_dequeue_buffer. Do not
- * blindly replace this logic by checking for the UVC_DEV_DISCONNECTED
- * state outside the queue code.
- */
- if (disconnect)
- queue->flags |= UVC_QUEUE_DISCONNECTED;
- spin_unlock_irqrestore(&queue->irqlock, flags);
-}
-
-struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue,
- struct uvc_buffer *buf)
+static struct uvc_buffer *
+uvc_queue_next_buffer(struct uvc_video_queue *queue, struct uvc_buffer *buf)
{
struct uvc_buffer *nextbuf;
unsigned long flags;
@@ -568,7 +573,7 @@ struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue,
return nextbuf;
}
-struct uvc_buffer *uvc_queue_head(struct uvc_video_queue *queue)
+static struct uvc_buffer *uvc_queue_head(struct uvc_video_queue *queue)
{
struct uvc_buffer *buf = NULL;
diff --git a/drivers/usb/gadget/uvc_queue.h b/drivers/usb/gadget/uvc_queue.h
index 7f5a33fe7ae212a0f68a20a98ffb31c4c9d0dd47..1812a8ecc5d0d567cbb48c39c69c0b21ca5efb80 100644
--- a/drivers/usb/gadget/uvc_queue.h
+++ b/drivers/usb/gadget/uvc_queue.h
@@ -58,30 +58,10 @@ struct uvc_video_queue {
struct list_head irqqueue;
};
-extern void uvc_queue_init(struct uvc_video_queue *queue,
- enum v4l2_buf_type type);
-extern int uvc_alloc_buffers(struct uvc_video_queue *queue,
- unsigned int nbuffers, unsigned int buflength);
-extern int uvc_free_buffers(struct uvc_video_queue *queue);
-extern int uvc_query_buffer(struct uvc_video_queue *queue,
- struct v4l2_buffer *v4l2_buf);
-extern int uvc_queue_buffer(struct uvc_video_queue *queue,
- struct v4l2_buffer *v4l2_buf);
-extern int uvc_dequeue_buffer(struct uvc_video_queue *queue,
- struct v4l2_buffer *v4l2_buf, int nonblocking);
-extern int uvc_queue_enable(struct uvc_video_queue *queue, int enable);
-extern void uvc_queue_cancel(struct uvc_video_queue *queue, int disconnect);
-extern struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue,
- struct uvc_buffer *buf);
-extern unsigned int uvc_queue_poll(struct uvc_video_queue *queue,
- struct file *file, poll_table *wait);
-extern int uvc_queue_mmap(struct uvc_video_queue *queue,
- struct vm_area_struct *vma);
static inline int uvc_queue_streaming(struct uvc_video_queue *queue)
{
return queue->flags & UVC_QUEUE_STREAMING;
}
-extern struct uvc_buffer *uvc_queue_head(struct uvc_video_queue *queue);
#endif /* __KERNEL__ */
diff --git a/drivers/usb/gadget/uvc_v4l2.c b/drivers/usb/gadget/uvc_v4l2.c
index a7989f29837ee213c072022e5e0798836672737a..2dcffdac86d29d061a150706cf5bbfc4d95f8064 100644
--- a/drivers/usb/gadget/uvc_v4l2.c
+++ b/drivers/usb/gadget/uvc_v4l2.c
@@ -363,7 +363,7 @@ uvc_v4l2_poll(struct file *file, poll_table *wait)
return mask;
}
-struct v4l2_file_operations uvc_v4l2_fops = {
+static struct v4l2_file_operations uvc_v4l2_fops = {
.owner = THIS_MODULE,
.open = uvc_v4l2_open,
.release = uvc_v4l2_release,
diff --git a/drivers/usb/gadget/uvc_video.c b/drivers/usb/gadget/uvc_video.c
index de8cbc46518dc2c45b19dfd743715f5449e5e6c8..b08f35438d7012deb1b21088cc2a64fe45f2d531 100644
--- a/drivers/usb/gadget/uvc_video.c
+++ b/drivers/usb/gadget/uvc_video.c
@@ -271,7 +271,7 @@ error:
* This function fills the available USB requests (listed in req_free) with
* video data from the queued buffers.
*/
-int
+static int
uvc_video_pump(struct uvc_video *video)
{
struct usb_request *req;
@@ -328,7 +328,7 @@ uvc_video_pump(struct uvc_video *video)
/*
* Enable or disable the video stream.
*/
-int
+static int
uvc_video_enable(struct uvc_video *video, int enable)
{
unsigned int i;
@@ -367,7 +367,7 @@ uvc_video_enable(struct uvc_video *video, int enable)
/*
* Initialize the UVC video stream.
*/
-int
+static int
uvc_video_init(struct uvc_video *video)
{
INIT_LIST_HEAD(&video->req_free);
diff --git a/drivers/usb/gadget/webcam.c b/drivers/usb/gadget/webcam.c
index 417fd688769867e0a45e35a8b3c455c4aa0f4122..f5f3030cc41671ca249fcb3917823c5d578acda3 100644
--- a/drivers/usb/gadget/webcam.c
+++ b/drivers/usb/gadget/webcam.c
@@ -28,10 +28,10 @@
#include "config.c"
#include "epautoconf.c"
-#include "f_uvc.c"
#include "uvc_queue.c"
-#include "uvc_v4l2.c"
#include "uvc_video.c"
+#include "uvc_v4l2.c"
+#include "f_uvc.c"
/* --------------------------------------------------------------------------
* Device descriptor