From 59d3448995a4c0ca98cbe82f6dac9460323377c1 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <mchehab@infradead.org>
Date: Sun, 13 Apr 2008 15:10:00 -0300
Subject: V4L/DVB (7566): videobuf-dvb: allow its usage with videobuf-vmalloc

videobuf-dvb were still using a function that were videobuf-dma-sg
dependent. This patch creates a generic handler for this function. This
way, videobuf-dvb can now work with all videobuf implementations.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
---
 drivers/media/video/videobuf-core.c    |  7 +++++++
 drivers/media/video/videobuf-dma-sg.c  | 11 +++++++++++
 drivers/media/video/videobuf-dvb.c     | 10 ++++++----
 drivers/media/video/videobuf-vmalloc.c |  1 +
 4 files changed, 25 insertions(+), 4 deletions(-)

(limited to 'drivers/media/video')

diff --git a/drivers/media/video/videobuf-core.c b/drivers/media/video/videobuf-core.c
index 848a2d0..fc51e49 100644
--- a/drivers/media/video/videobuf-core.c
+++ b/drivers/media/video/videobuf-core.c
@@ -94,6 +94,13 @@ int videobuf_iolock(struct videobuf_queue *q, struct videobuf_buffer *vb,
 	return CALL(q, iolock, q, vb, fbuf);
 }
 
+void *videobuf_queue_to_vmalloc (struct videobuf_queue *q,
+			   struct videobuf_buffer *buf)
+{
+	return CALL(q, vmalloc, buf);
+}
+EXPORT_SYMBOL_GPL(videobuf_queue_to_vmalloc);
+
 /* --------------------------------------------------------------------- */
 
 
diff --git a/drivers/media/video/videobuf-dma-sg.c b/drivers/media/video/videobuf-dma-sg.c
index c0b7902..03a7b94 100644
--- a/drivers/media/video/videobuf-dma-sg.c
+++ b/drivers/media/video/videobuf-dma-sg.c
@@ -432,6 +432,16 @@ static void *__videobuf_alloc(size_t size)
 	return vb;
 }
 
+static void *__videobuf_to_vmalloc (struct videobuf_buffer *buf)
+{
+	struct videobuf_dma_sg_memory *mem = buf->priv;
+	BUG_ON(!mem);
+
+	MAGIC_CHECK(mem->magic, MAGIC_SG_MEM);
+
+	return mem->dma.vmalloc;
+}
+
 static int __videobuf_iolock (struct videobuf_queue* q,
 			      struct videobuf_buffer *vb,
 			      struct v4l2_framebuffer *fbuf)
@@ -677,6 +687,7 @@ static struct videobuf_qtype_ops sg_ops = {
 	.mmap_mapper  = __videobuf_mmap_mapper,
 	.video_copy_to_user = __videobuf_copy_to_user,
 	.copy_stream  = __videobuf_copy_stream,
+	.vmalloc      = __videobuf_to_vmalloc,
 };
 
 void *videobuf_sg_alloc(size_t size)
diff --git a/drivers/media/video/videobuf-dvb.c b/drivers/media/video/videobuf-dvb.c
index 0f8542a..6e4d73e 100644
--- a/drivers/media/video/videobuf-dvb.c
+++ b/drivers/media/video/videobuf-dvb.c
@@ -20,9 +20,10 @@
 #include <linux/fs.h>
 #include <linux/kthread.h>
 #include <linux/file.h>
+
 #include <linux/freezer.h>
 
-#include <media/videobuf-dma-sg.h>
+#include <media/videobuf-core.h>
 #include <media/videobuf-dvb.h>
 
 /* ------------------------------------------------------------------ */
@@ -45,7 +46,7 @@ static int videobuf_dvb_thread(void *data)
 	struct videobuf_buffer *buf;
 	unsigned long flags;
 	int err;
-	struct videobuf_dmabuf *dma;
+	void *outp;
 
 	dprintk("dvb thread started\n");
 	set_freezable();
@@ -66,9 +67,10 @@ static int videobuf_dvb_thread(void *data)
 		try_to_freeze();
 
 		/* feed buffer data to demux */
-		dma=videobuf_to_dma(buf);
+		outp = videobuf_queue_to_vmalloc (&dvb->dvbq, buf);
+
 		if (buf->state == VIDEOBUF_DONE)
-			dvb_dmx_swfilter(&dvb->demux, dma->vmalloc,
+			dvb_dmx_swfilter(&dvb->demux, outp,
 					 buf->size);
 
 		/* requeue buffer */
diff --git a/drivers/media/video/videobuf-vmalloc.c b/drivers/media/video/videobuf-vmalloc.c
index d68d027..c91e1d8 100644
--- a/drivers/media/video/videobuf-vmalloc.c
+++ b/drivers/media/video/videobuf-vmalloc.c
@@ -387,6 +387,7 @@ static struct videobuf_qtype_ops qops = {
 	.mmap_mapper  = __videobuf_mmap_mapper,
 	.video_copy_to_user = __videobuf_copy_to_user,
 	.copy_stream  = __videobuf_copy_stream,
+	.vmalloc      = videobuf_to_vmalloc,
 };
 
 void videobuf_queue_vmalloc_init(struct videobuf_queue* q,
-- 
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