vserver 1.9.5.x5

[linux-2.6.git] / include / media / video-buf.h

diff --git a/include/media/video-buf.h b/include/media/video-buf.h
index 3c17bdf..ae6da6d 100644 (file)
--- a/include/media/video-buf.h
+++ b/include/media/video-buf.h
@@ -1,4 +1,6 @@
 /*
+ * $Id: video-buf.h,v 1.9 2004/11/07 13:17:15 kraxel Exp $
+ *
  * generic helper functions for video4linux capture buffers, to handle
  * memory management and PCI DMA.  Right now bttv + saa7134 use it.
  *
@@ -7,7 +9,7 @@
  * into PAGE_SIZE chunks).  They also assume the driver does not need
  * to touch the video data (thus it is probably not useful for USB as
  * data often must be uncompressed by the drivers).
- * 
+ *
  * (c) 2001,02 Gerd Knorr <kraxel@bytesex.org>
  *
  * This program is free software; you can redistribute it and/or modify
@@ -100,7 +102,7 @@ int videobuf_dma_free(struct videobuf_dmabuf *dma);
  * functions, additionally some commonly used fields for v4l buffers
  * (width, height, lists, waitqueue) are in there.  That struct should
  * be used as first element in the drivers buffer struct.
- * 
+ *
  * about the mmap helpers (videobuf_mmap_*):
  *
  * The mmaper function allows to map any subset of contingous buffers.
@@ -119,7 +121,6 @@ struct videobuf_queue;
 
 struct videobuf_mapping {
        unsigned int count;
-       int highmem_ok;
        unsigned long start;
        unsigned long end;
        struct videobuf_queue *q;
@@ -165,12 +166,15 @@ struct videobuf_buffer {
 };
 
 struct videobuf_queue_ops {
-       int (*buf_setup)(struct file *file,
+       int (*buf_setup)(struct videobuf_queue *q,
                         unsigned int *count, unsigned int *size);
-       int (*buf_prepare)(struct file *file,struct videobuf_buffer *vb,
+       int (*buf_prepare)(struct videobuf_queue *q,
+                          struct videobuf_buffer *vb,
                           enum v4l2_field field);
-       void (*buf_queue)(struct file *file,struct videobuf_buffer *vb);
-       void (*buf_release)(struct file *file,struct videobuf_buffer *vb);
+       void (*buf_queue)(struct videobuf_queue *q,
+                         struct videobuf_buffer *vb);
+       void (*buf_release)(struct videobuf_queue *q,
+                           struct videobuf_buffer *vb);
 };
 
 struct videobuf_queue {
@@ -194,6 +198,9 @@ struct videobuf_queue {
        unsigned int               reading;
        unsigned int               read_off;
        struct videobuf_buffer     *read_buf;
+
+       /* driver private data */
+       void                       *priv_data;
 };
 
 void* videobuf_alloc(unsigned int size);
@@ -203,43 +210,46 @@ int videobuf_iolock(struct pci_dev *pci, struct videobuf_buffer *vb,
 
 void videobuf_queue_init(struct videobuf_queue *q,
                         struct videobuf_queue_ops *ops,
-                        struct pci_dev *pci, spinlock_t *irqlock,
+                        struct pci_dev *pci,
+                        spinlock_t *irqlock,
                         enum v4l2_buf_type type,
                         enum v4l2_field field,
-                        unsigned int msize);
+                        unsigned int msize,
+                        void *priv);
 int  videobuf_queue_is_busy(struct videobuf_queue *q);
-void videobuf_queue_cancel(struct file *file, struct videobuf_queue *q);
+void videobuf_queue_cancel(struct videobuf_queue *q);
 
 enum v4l2_field videobuf_next_field(struct videobuf_queue *q);
 void videobuf_status(struct v4l2_buffer *b, struct videobuf_buffer *vb,
                     enum v4l2_buf_type type);
-int videobuf_reqbufs(struct file *file, struct videobuf_queue *q,
+int videobuf_reqbufs(struct videobuf_queue *q,
                     struct v4l2_requestbuffers *req);
 int videobuf_querybuf(struct videobuf_queue *q, struct v4l2_buffer *b);
-int videobuf_qbuf(struct file *file, struct videobuf_queue *q,
+int videobuf_qbuf(struct videobuf_queue *q,
                  struct v4l2_buffer *b);
-int videobuf_dqbuf(struct file *file, struct videobuf_queue *q,
-                  struct v4l2_buffer *b);
-int videobuf_streamon(struct file *file, struct videobuf_queue *q);
-int videobuf_streamoff(struct file *file, struct videobuf_queue *q);
-
-int videobuf_read_start(struct file *file, struct videobuf_queue *q);
-void videobuf_read_stop(struct file *file, struct videobuf_queue *q);
-ssize_t videobuf_read_stream(struct file *file, struct videobuf_queue *q,
+int videobuf_dqbuf(struct videobuf_queue *q,
+                  struct v4l2_buffer *b, int nonblocking);
+int videobuf_streamon(struct videobuf_queue *q);
+int videobuf_streamoff(struct videobuf_queue *q);
+
+int videobuf_read_start(struct videobuf_queue *q);
+void videobuf_read_stop(struct videobuf_queue *q);
+ssize_t videobuf_read_stream(struct videobuf_queue *q,
                             char __user *data, size_t count, loff_t *ppos,
-                            int vbihack);
-ssize_t videobuf_read_one(struct file *file, struct videobuf_queue *q,
-                         char __user *data, size_t count, loff_t *ppos);
+                            int vbihack, int nonblocking);
+ssize_t videobuf_read_one(struct videobuf_queue *q,
+                         char __user *data, size_t count, loff_t *ppos,
+                         int nonblocking);
 unsigned int videobuf_poll_stream(struct file *file,
                                  struct videobuf_queue *q,
                                  poll_table *wait);
 
-int videobuf_mmap_setup(struct file *file, struct videobuf_queue *q,
+int videobuf_mmap_setup(struct videobuf_queue *q,
                        unsigned int bcount, unsigned int bsize,
                        enum v4l2_memory memory);
-int videobuf_mmap_free(struct file *file, struct videobuf_queue *q);
-int videobuf_mmap_mapper(struct vm_area_struct *vma,
-                        struct videobuf_queue *q);
+int videobuf_mmap_free(struct videobuf_queue *q);
+int videobuf_mmap_mapper(struct videobuf_queue *q,
+                        struct vm_area_struct *vma);
 
 /* --------------------------------------------------------------------- */