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