1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * upd6408x - NEC Electronics 3-Dimensional Y/C separation input defines
4  *
5  * 2006 by Hans Verkuil (hverkuil@xs4all.nl)
6  */
7 
8 #ifndef _UPD64083_H_
9 #define _UPD64083_H_
10 
11 /* There are two bits of information that the driver needs in order
12    to select the correct routing: the operating mode and the selection
13    of the Y input (external or internal).
14 
15    The first two operating modes expect a composite signal on the Y input,
16    the second two operating modes use both the Y and C inputs.
17 
18    Normally YCS_MODE is used for tuner and composite inputs, and the
19    YCNR mode is used for S-Video inputs.
20 
21    The external Y-ADC is selected when the composite input comes from a
22    upd64031a ghost reduction device. If this device is not present, or
23    the input is a S-Video signal, then the internal Y-ADC input should
24    be used. */
25 
26 /* Operating modes: */
27 
28 /* YCS mode: Y/C separation (burst locked clocking) */
29 #define UPD64083_YCS_MODE      0
30 /* YCS+ mode: 2D Y/C separation and YCNR (burst locked clocking) */
31 #define UPD64083_YCS_PLUS_MODE 1
32 
33 /* Note: the following two modes cannot be used in combination with the
34    external Y-ADC. */
35 /* MNNR mode: frame comb type YNR+C delay (line locked clocking) */
36 #define UPD64083_MNNR_MODE     2
37 /* YCNR mode: frame recursive YCNR (burst locked clocking) */
38 #define UPD64083_YCNR_MODE     3
39 
40 /* Select external Y-ADC: this should be set if this device is used in
41    combination with the upd64031a ghost reduction device.
42    Otherwise leave at 0 (use internal Y-ADC). */
43 #define UPD64083_EXT_Y_ADC     (1 << 2)
44 
45 #endif
46