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authorLinus Torvalds <torvalds@linux-foundation.org>2014-10-08 06:47:31 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-10-08 06:47:31 -0400
commit463311960e9312245418af98dce8c0161fd6b827 (patch)
tree9529b6063b10f1b85408ef4757d1917dfdb8292d /drivers/usb/gadget/function/uvc_queue.c
parent87d7bcee4f5973a593b0d50134364cfe5652ff33 (diff)
parent4ed9a3d455558406cad83d38764ee659de25851c (diff)
Merge tag 'usb-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB updates from Greg KH: "Here's the big USB patchset for 3.18-rc1. Also in here is the PHY tree, as it seems to fit well with the USB tree for various reasons... Anyway, lots of little changes in here, all over the place, full details in the changelog All have been in the linux-next tree for a while with no issues" * tag 'usb-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (244 commits) USB: host: st: fix typo 'CONFIG_USB_EHCI_HCD_ST' uas: Reduce number of function arguments for uas_alloc_foo functions xhci: Allow xHCI drivers to be built as separate modules xhci: Export symbols used by host-controller drivers xhci: Check for XHCI_COMP_MODE_QUIRK when disabling D3cold xhci: Introduce xhci_init_driver() usb: hcd: add generic PHY support usb: rename phy to usb_phy in HCD usb: gadget: uvc: fix up uvcg_v4l2_get_unmapped_area typo USB: host: st: fix ehci/ohci driver selection usb: host: ehci-exynos: Remove unnecessary usb-phy support usb: core: return -ENOTSUPP for all targeted hosts USB: Remove .owner field for driver usb: core: log higher level message on malformed LANGID descriptor usb: Add LED triggers for USB activity usb: Rename usb-common.c usb: gadget: Refactor request completion usb: gadget: Introduce usb_gadget_giveback_request() usb: dwc2/gadget: move phy bus legth initialization phy: remove .owner field for drivers using module_platform_driver ...
Diffstat (limited to 'drivers/usb/gadget/function/uvc_queue.c')
-rw-r--r--drivers/usb/gadget/function/uvc_queue.c46
1 files changed, 21 insertions, 25 deletions
diff --git a/drivers/usb/gadget/function/uvc_queue.c b/drivers/usb/gadget/function/uvc_queue.c
index 1c29bc954db..8ea8b3b227b 100644
--- a/drivers/usb/gadget/function/uvc_queue.c
+++ b/drivers/usb/gadget/function/uvc_queue.c
@@ -28,7 +28,7 @@
/* ------------------------------------------------------------------------
* Video buffers queue management.
*
- * Video queues is initialized by uvc_queue_init(). The function performs
+ * Video queues is initialized by uvcg_queue_init(). The function performs
* basic initialization of the uvc_video_queue struct and never fails.
*
* Video buffers are managed by videobuf2. The driver uses a mutex to protect
@@ -126,13 +126,12 @@ static struct vb2_ops uvc_queue_qops = {
.wait_finish = uvc_wait_finish,
};
-static int uvc_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;
queue->queue.type = type;
- queue->queue.io_modes = VB2_MMAP | VB2_USERPTR;
+ queue->queue.io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
queue->queue.drv_priv = queue;
queue->queue.buf_struct_size = sizeof(struct uvc_buffer);
queue->queue.ops = &uvc_queue_qops;
@@ -154,7 +153,7 @@ static int uvc_queue_init(struct uvc_video_queue *queue,
/*
* Free the video buffers.
*/
-static void uvc_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);
@@ -164,8 +163,8 @@ static void uvc_free_buffers(struct uvc_video_queue *queue)
/*
* Allocate the video buffers.
*/
-static int uvc_alloc_buffers(struct uvc_video_queue *queue,
- struct v4l2_requestbuffers *rb)
+int uvcg_alloc_buffers(struct uvc_video_queue *queue,
+ struct v4l2_requestbuffers *rb)
{
int ret;
@@ -176,8 +175,7 @@ static int uvc_alloc_buffers(struct uvc_video_queue *queue,
return ret ? ret : rb->count;
}
-static int uvc_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 uvc_query_buffer(struct uvc_video_queue *queue,
return ret;
}
-static int uvc_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 uvc_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 uvc_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 uvc_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 uvc_queue_poll(struct uvc_video_queue *queue,
return ret;
}
-static int uvc_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;
@@ -261,8 +257,8 @@ static int uvc_queue_mmap(struct uvc_video_queue *queue,
*
* NO-MMU arch need this function to make mmap() work correctly.
*/
-static unsigned long uvc_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;
@@ -285,7 +281,7 @@ static unsigned long uvc_queue_get_unmapped_area(struct uvc_video_queue *queue,
* 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)
+void uvcg_queue_cancel(struct uvc_video_queue *queue, int disconnect)
{
struct uvc_buffer *buf;
unsigned long flags;
@@ -324,9 +320,9 @@ static void uvc_queue_cancel(struct uvc_video_queue *queue, int disconnect)
* the main queue.
*
* This function can't be called from interrupt context. Use
- * uvc_queue_cancel() instead.
+ * uvcg_queue_cancel() instead.
*/
-static int uvc_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;
@@ -363,8 +359,8 @@ done:
}
/* called with &queue_irqlock held.. */
-static struct uvc_buffer *uvc_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;
@@ -392,7 +388,7 @@ static struct uvc_buffer *uvc_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 *uvcg_queue_head(struct uvc_video_queue *queue)
{
struct uvc_buffer *buf = NULL;