1/***************************************************************************
2 *            au88x0_cxtalk.h
3 *
4 *  Wed Nov 19 19:07:17 2003
5 *  Copyright  2003  mjander
6 *  mjander@users.sourceforge.org
7 ****************************************************************************/
8
9/*
10 *  This program is free software; you can redistribute it and/or modify
11 *  it under the terms of the GNU General Public License as published by
12 *  the Free Software Foundation; either version 2 of the License, or
13 *  (at your option) any later version.
14 *
15 *  This program is distributed in the hope that it will be useful,
16 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
17 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18 *  GNU Library General Public License for more details.
19 *
20 *  You should have received a copy of the GNU General Public License
21 *  along with this program; if not, write to the Free Software
22 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 */
24
25/* The crosstalk canceler supports 5 stereo input channels. The result is
26   available at one single output route pair (stereo). */
27
28#ifndef _AU88X0_CXTALK_H
29#define _AU88X0_CXTALK_H
30
31#include "au88x0.h"
32
33#define XTDLINE_SZ 32
34#define XTGAINS_SZ 10
35#define XTINST_SZ 4
36
37#define XT_HEADPHONE	1
38#define XT_SPEAKER0		2
39#define XT_SPEAKER1		3
40#define XT_DIAMOND		4
41
42typedef u32 xtalk_dline_t[XTDLINE_SZ];
43typedef u16 xtalk_gains_t[XTGAINS_SZ];
44typedef u16 xtalk_instate_t[XTINST_SZ];
45typedef u16 xtalk_coefs_t[5][5];
46typedef u16 xtalk_state_t[5][4];
47
48static void vortex_XtalkHw_SetGains(vortex_t * vortex,
49				    xtalk_gains_t const gains);
50static void vortex_XtalkHw_SetGainsAllChan(vortex_t * vortex);
51static void vortex_XtalkHw_SetSampleRate(vortex_t * vortex, u32 sr);
52static void vortex_XtalkHw_ProgramPipe(vortex_t * vortex);
53static void vortex_XtalkHw_ProgramPipe(vortex_t * vortex);
54static void vortex_XtalkHw_ProgramXtalkWide(vortex_t * vortex);
55static void vortex_XtalkHw_ProgramXtalkNarrow(vortex_t * vortex);
56static void vortex_XtalkHw_ProgramDiamondXtalk(vortex_t * vortex);
57static void vortex_XtalkHw_Enable(vortex_t * vortex);
58static void vortex_XtalkHw_Disable(vortex_t * vortex);
59static void vortex_XtalkHw_init(vortex_t * vortex);
60
61#endif				/* _AU88X0_CXTALK_H */
62