1 /*
2  * upd6408x - NEC Electronics 3-Dimensional Y/C separation input defines
3  *
4  * 2006 by Hans Verkuil (hverkuil@xs4all.nl)
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2
9  * of the License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
19  */
20 
21 #ifndef _UPD64083_H_
22 #define _UPD64083_H_
23 
24 /* There are two bits of information that the driver needs in order
25    to select the correct routing: the operating mode and the selection
26    of the Y input (external or internal).
27 
28    The first two operating modes expect a composite signal on the Y input,
29    the second two operating modes use both the Y and C inputs.
30 
31    Normally YCS_MODE is used for tuner and composite inputs, and the
32    YCNR mode is used for S-Video inputs.
33 
34    The external Y-ADC is selected when the composite input comes from a
35    upd64031a ghost reduction device. If this device is not present, or
36    the input is a S-Video signal, then the internal Y-ADC input should
37    be used. */
38 
39 /* Operating modes: */
40 
41 /* YCS mode: Y/C separation (burst locked clocking) */
42 #define UPD64083_YCS_MODE      0
43 /* YCS+ mode: 2D Y/C separation and YCNR (burst locked clocking) */
44 #define UPD64083_YCS_PLUS_MODE 1
45 
46 /* Note: the following two modes cannot be used in combination with the
47    external Y-ADC. */
48 /* MNNR mode: frame comb type YNR+C delay (line locked clocking) */
49 #define UPD64083_MNNR_MODE     2
50 /* YCNR mode: frame recursive YCNR (burst locked clocking) */
51 #define UPD64083_YCNR_MODE     3
52 
53 /* Select external Y-ADC: this should be set if this device is used in
54    combination with the upd64031a ghost reduction device.
55    Otherwise leave at 0 (use internal Y-ADC). */
56 #define UPD64083_EXT_Y_ADC     (1 << 2)
57 
58 #endif
59