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authorMauro Carvalho Chehab <mchehab@s-opensource.com>2018-02-09 07:30:46 -0500
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2018-02-23 11:44:08 -0500
commitfdbeb96258141d911ca8ba98931b9024038b84e0 (patch)
tree48e67807fb83b4e191608848a709e8ec20930dc0 /include/media/dvb_vb2.h
parentmedia: dvb: add continuity error indicators for memory mapped buffers (diff)
downloadwireguard-linux-fdbeb96258141d911ca8ba98931b9024038b84e0.tar.xz
wireguard-linux-fdbeb96258141d911ca8ba98931b9024038b84e0.zip
media: dvb: update buffer mmaped flags and frame counter
Now that we have support for a buffer counter and for error flags, update them at DMX_DQBUF. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Diffstat (limited to 'include/media/dvb_vb2.h')
-rw-r--r--include/media/dvb_vb2.h18
1 files changed, 16 insertions, 2 deletions
diff --git a/include/media/dvb_vb2.h b/include/media/dvb_vb2.h
index 056adc860272..8cb88452cd6c 100644
--- a/include/media/dvb_vb2.h
+++ b/include/media/dvb_vb2.h
@@ -85,6 +85,12 @@ struct dvb_buffer {
* @nonblocking:
* If different than zero, device is operating on non-blocking
* mode.
+ * @flags: buffer flags as defined by &enum dmx_buffer_flags.
+ * Filled only at &DMX_DQBUF. &DMX_QBUF should zero this field.
+ * @count: monotonic counter for filled buffers. Helps to identify
+ * data stream loses. Filled only at &DMX_DQBUF. &DMX_QBUF should
+ * zero this field.
+ *
* @name: name of the device type. Currently, it can either be
* "dvr" or "demux_filter".
*/
@@ -100,6 +106,10 @@ struct dvb_vb2_ctx {
int buf_siz;
int buf_cnt;
int nonblocking;
+
+ enum dmx_buffer_flags flags;
+ u32 count;
+
char name[DVB_VB2_NAME_MAX + 1];
};
@@ -114,7 +124,7 @@ static inline int dvb_vb2_release(struct dvb_vb2_ctx *ctx)
return 0;
};
#define dvb_vb2_is_streaming(ctx) (0)
-#define dvb_vb2_fill_buffer(ctx, file, wait) (0)
+#define dvb_vb2_fill_buffer(ctx, file, wait, flags) (0)
static inline __poll_t dvb_vb2_poll(struct dvb_vb2_ctx *ctx,
struct file *file,
@@ -153,9 +163,13 @@ int dvb_vb2_is_streaming(struct dvb_vb2_ctx *ctx);
* @ctx: control struct for VB2 handler
* @src: place where the data is stored
* @len: number of bytes to be copied from @src
+ * @buffer_flags:
+ * pointer to buffer flags as defined by &enum dmx_buffer_flags.
+ * can be NULL.
*/
int dvb_vb2_fill_buffer(struct dvb_vb2_ctx *ctx,
- const unsigned char *src, int len);
+ const unsigned char *src, int len,
+ enum dmx_buffer_flags *buffer_flags);
/**
* dvb_vb2_poll - Wrapper to vb2_core_streamon() for Digital TV