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
42 typedef u32 xtalk_dline_t[XTDLINE_SZ];
43 typedef u16 xtalk_gains_t[XTGAINS_SZ];
44 typedef u16 xtalk_instate_t[XTINST_SZ];
45 typedef u16 xtalk_coefs_t[5][5];
46 typedef u16 xtalk_state_t[5][4];
47
48 static void vortex_XtalkHw_SetGains(vortex_t * vortex,
49 xtalk_gains_t const gains);
50 static void vortex_XtalkHw_SetGainsAllChan(vortex_t * vortex);
51 static void vortex_XtalkHw_SetSampleRate(vortex_t * vortex, u32 sr);
52 static void vortex_XtalkHw_ProgramPipe(vortex_t * vortex);
53 static void vortex_XtalkHw_ProgramPipe(vortex_t * vortex);
54 static void vortex_XtalkHw_ProgramXtalkWide(vortex_t * vortex);
55 static void vortex_XtalkHw_ProgramXtalkNarrow(vortex_t * vortex);
56 static void vortex_XtalkHw_ProgramDiamondXtalk(vortex_t * vortex);
57 static void vortex_XtalkHw_Enable(vortex_t * vortex);
58 static void vortex_XtalkHw_Disable(vortex_t * vortex);
59 static void vortex_XtalkHw_init(vortex_t * vortex);
60
61 #endif /* _AU88X0_CXTALK_H */
62
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