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Diffstat (limited to 'drivers/media/pci/cx18/cx18-streams.h')
-rw-r--r--drivers/media/pci/cx18/cx18-streams.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/media/pci/cx18/cx18-streams.h b/drivers/media/pci/cx18/cx18-streams.h
new file mode 100644
index 000000000..bba4349c5
--- /dev/null
+++ b/drivers/media/pci/cx18/cx18-streams.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * cx18 init/start/stop/exit stream functions
+ *
+ * Derived from ivtv-streams.h
+ *
+ * Copyright (C) 2007 Hans Verkuil <hverkuil@xs4all.nl>
+ * Copyright (C) 2008 Andy Walls <awalls@md.metrocast.net>
+ */
+
+u32 cx18_find_handle(struct cx18 *cx);
+struct cx18_stream *cx18_handle_to_stream(struct cx18 *cx, u32 handle);
+int cx18_streams_setup(struct cx18 *cx);
+int cx18_streams_register(struct cx18 *cx);
+void cx18_streams_cleanup(struct cx18 *cx, int unregister);
+
+#define CX18_ENC_STREAM_TYPE_IDX_FW_MDL_MIN (3)
+void cx18_stream_rotate_idx_mdls(struct cx18 *cx);
+
+static inline bool cx18_stream_enabled(struct cx18_stream *s)
+{
+ return s->video_dev.v4l2_dev ||
+ (s->dvb && s->dvb->enabled) ||
+ (s->type == CX18_ENC_STREAM_TYPE_IDX &&
+ s->cx->stream_buffers[CX18_ENC_STREAM_TYPE_IDX] != 0);
+}
+
+/* Related to submission of mdls to firmware */
+static inline void cx18_stream_load_fw_queue(struct cx18_stream *s)
+{
+ schedule_work(&s->out_work_order);
+}
+
+static inline void cx18_stream_put_mdl_fw(struct cx18_stream *s,
+ struct cx18_mdl *mdl)
+{
+ /* Put mdl on q_free; the out work handler will move mdl(s) to q_busy */
+ cx18_enqueue(s, mdl, &s->q_free);
+ cx18_stream_load_fw_queue(s);
+}
+
+void cx18_out_work_handler(struct work_struct *work);
+
+/* Capture related */
+int cx18_start_v4l2_encode_stream(struct cx18_stream *s);
+int cx18_stop_v4l2_encode_stream(struct cx18_stream *s, int gop_end);
+
+void cx18_stop_all_captures(struct cx18 *cx);