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Diffstat (limited to 'drivers/media/usb/pvrusb2/pvrusb2-std.h')
-rw-r--r--drivers/media/usb/pvrusb2/pvrusb2-std.h35
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-std.h b/drivers/media/usb/pvrusb2/pvrusb2-std.h
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+++ b/drivers/media/usb/pvrusb2/pvrusb2-std.h
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+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ *
+ * Copyright (C) 2005 Mike Isely <isely@pobox.com>
+ */
+#ifndef __PVRUSB2_STD_H
+#define __PVRUSB2_STD_H
+
+#include <linux/videodev2.h>
+
+// Convert string describing one or more video standards into a mask of V4L
+// standard bits. Return true if conversion succeeds otherwise return
+// false. String is expected to be of the form: C1-x/y;C2-a/b where C1 and
+// C2 are color system names (e.g. "PAL", "NTSC") and x, y, a, and b are
+// modulation schemes (e.g. "M", "B", "G", etc).
+int pvr2_std_str_to_id(v4l2_std_id *idPtr,const char *bufPtr,
+ unsigned int bufSize);
+
+// Convert any arbitrary set of video standard bits into an unambiguous
+// readable string. Return value is the number of bytes consumed in the
+// buffer. The formatted string is of a form that can be parsed by our
+// sibling std_std_to_id() function.
+unsigned int pvr2_std_id_to_str(char *bufPtr, unsigned int bufSize,
+ v4l2_std_id id);
+
+// Create an array of suitable v4l2_standard structures given a bit mask of
+// video standards to support. The array is allocated from the heap, and
+// the number of elements is returned in the first argument.
+struct v4l2_standard *pvr2_std_create_enum(unsigned int *countptr,
+ v4l2_std_id id);
+
+// Return mask of which video standard bits are valid
+v4l2_std_id pvr2_std_get_usable(void);
+
+#endif /* __PVRUSB2_STD_H */