916 lines
20 KiB
C
916 lines
20 KiB
C
/* $NetBSD: aucc.c,v 1.22 1998/01/12 10:39:10 thorpej Exp $ */
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/*
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* Copyright (c) 1997 Stephan Thesing
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Stephan Thesing.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "aucc.h"
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#if NAUCC > 0
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/errno.h>
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#include <sys/ioctl.h>
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#include <sys/device.h>
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#include <sys/proc.h>
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#include <machine/cpu.h>
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#include <sys/audioio.h>
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#include <dev/audio_if.h>
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#include <amiga/amiga/cc.h>
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#include <amiga/amiga/custom.h>
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#include <amiga/amiga/device.h>
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#include <amiga/dev/auccvar.h>
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#ifdef LEV6_DEFER
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#define AUCC_MAXINT 3
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#define AUCC_ALLINTF (INTF_AUD0|INTF_AUD1|INTF_AUD2)
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#else
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#define AUCC_MAXINT 4
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#define AUCC_ALLINTF (INTF_AUD0|INTF_AUD1|INTF_AUD2|INTF_AUD3)
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#endif
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/* this unconditionally; we may use AUD3 as slave channel with LEV6_DEFER */
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#define AUCC_ALLDMAF (DMAF_AUD0|DMAF_AUD1|DMAF_AUD2|DMAF_AUD3)
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#ifdef AUDIO_DEBUG
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/*extern printf __P((const char *,...));*/
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int auccdebug = 1;
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#define DPRINTF(x) if (auccdebug) printf x
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#else
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#define DPRINTF(x)
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#endif
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#ifdef splaudio
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#undef splaudio
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#endif
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#define splaudio() spl4();
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/* clock frequency.. */
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extern int eclockfreq;
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/* hw audio ch */
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extern struct audio_channel channel[4];
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/*
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* Software state.
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*/
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struct aucc_softc {
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struct device sc_dev; /* base device */
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int sc_open; /* single use device */
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aucc_data_t sc_channel[4]; /* per channel freq, ... */
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u_int sc_encoding; /* encoding AUDIO_ENCODING_.*/
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int sc_channels; /* # of channels used */
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int sc_intrcnt; /* interrupt count */
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int sc_channelmask; /* which channels are used ? */
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};
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/* interrupt interfaces */
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void aucc_inthdl __P((int));
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/* forward declarations */
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static int init_aucc __P((struct aucc_softc *));
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static u_int freqtoper __P((u_int));
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static u_int pertofreq __P((u_int));
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/* autoconfiguration driver */
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void auccattach __P((struct device *, struct device *, void *));
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int auccmatch __P((struct device *, struct cfdata *, void *));
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struct cfattach aucc_ca = {
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sizeof(struct aucc_softc),
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auccmatch,
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auccattach
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};
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struct audio_device aucc_device = {
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"Amiga-audio",
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"x",
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"aucc"
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};
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struct aucc_softc *aucc=NULL;
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unsigned char ulaw_to_lin[] = {
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0x82, 0x86, 0x8a, 0x8e, 0x92, 0x96, 0x9a, 0x9e,
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0xa2, 0xa6, 0xaa, 0xae, 0xb2, 0xb6, 0xba, 0xbe,
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0xc1, 0xc3, 0xc5, 0xc7, 0xc9, 0xcb, 0xcd, 0xcf,
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0xd1, 0xd3, 0xd5, 0xd7, 0xd9, 0xdb, 0xdd, 0xdf,
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0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8,
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0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0,
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0xf0, 0xf1, 0xf1, 0xf2, 0xf2, 0xf3, 0xf3, 0xf4,
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0xf4, 0xf5, 0xf5, 0xf6, 0xf6, 0xf7, 0xf7, 0xf8,
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0xf8, 0xf8, 0xf9, 0xf9, 0xf9, 0xf9, 0xfa, 0xfa,
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0xfa, 0xfa, 0xfb, 0xfb, 0xfb, 0xfb, 0xfc, 0xfc,
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0xfc, 0xfc, 0xfc, 0xfc, 0xfd, 0xfd, 0xfd, 0xfd,
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0xfd, 0xfd, 0xfd, 0xfd, 0xfe, 0xfe, 0xfe, 0xfe,
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0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe, 0xfe,
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
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0x7d, 0x79, 0x75, 0x71, 0x6d, 0x69, 0x65, 0x61,
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0x5d, 0x59, 0x55, 0x51, 0x4d, 0x49, 0x45, 0x41,
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0x3e, 0x3c, 0x3a, 0x38, 0x36, 0x34, 0x32, 0x30,
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0x2e, 0x2c, 0x2a, 0x28, 0x26, 0x24, 0x22, 0x20,
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0x1e, 0x1d, 0x1c, 0x1b, 0x1a, 0x19, 0x18, 0x17,
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0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0f,
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0x0f, 0x0e, 0x0e, 0x0d, 0x0d, 0x0c, 0x0c, 0x0b,
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0x0b, 0x0a, 0x0a, 0x09, 0x09, 0x08, 0x08, 0x07,
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0x07, 0x07, 0x06, 0x06, 0x06, 0x06, 0x05, 0x05,
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0x05, 0x05, 0x04, 0x04, 0x04, 0x04, 0x03, 0x03,
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0x03, 0x03, 0x03, 0x03, 0x02, 0x02, 0x02, 0x02,
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0x02, 0x02, 0x02, 0x02, 0x01, 0x01, 0x01, 0x01,
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0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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};
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/*
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* Define our interface to the higher level audio driver.
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*/
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int aucc_open __P((void *, int));
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void aucc_close __P((void *));
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int aucc_set_out_sr __P((void *, u_long));
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int aucc_query_encoding __P((void *, struct audio_encoding *));
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int aucc_round_blocksize __P((void *, int));
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int aucc_commit_settings __P((void *));
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int aucc_start_output __P((void *, void *, int, void (*)(void *),
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void *));
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int aucc_start_input __P((void *, void *, int, void (*)(void *),
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void *));
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int aucc_halt_output __P((void *));
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int aucc_halt_input __P((void *));
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int aucc_getdev __P((void *, struct audio_device *));
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int aucc_set_port __P((void *, mixer_ctrl_t *));
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int aucc_get_port __P((void *, mixer_ctrl_t *));
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int aucc_query_devinfo __P((void *, mixer_devinfo_t *));
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void aucc_encode __P((int, int, int, u_char *, u_short **));
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int aucc_set_params __P((void *, int, int,
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struct audio_params *, struct audio_params *));
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int aucc_get_props __P((void *));
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struct audio_hw_if sa_hw_if = {
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aucc_open,
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aucc_close,
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NULL,
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aucc_query_encoding,
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aucc_set_params,
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aucc_round_blocksize,
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aucc_commit_settings,
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NULL,
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NULL,
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aucc_start_output,
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aucc_start_input,
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aucc_halt_output,
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aucc_halt_input,
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NULL,
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aucc_getdev,
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NULL,
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aucc_set_port,
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aucc_get_port,
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aucc_query_devinfo,
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NULL,
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NULL,
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NULL,
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NULL,
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aucc_get_props,
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};
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/* autoconfig routines */
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int
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auccmatch(pdp, cfp, aux)
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struct device *pdp;
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struct cfdata *cfp;
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void *aux;
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{
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if (matchname((char *)aux, "aucc") &&
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#ifdef DRACO
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!is_draco() &&
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#endif
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(cfp->cf_unit == 0))
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return 1;
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return 0;
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}
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/*
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* Audio chip found.
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*/
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void
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auccattach(parent, self, args)
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struct device *parent, *self;
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void *args;
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{
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register struct aucc_softc *sc = (struct aucc_softc *)self;
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register int i;
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printf("\n");
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if((i=init_aucc(sc))) {
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printf("audio: no chipmem\n");
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return;
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}
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audio_attach_mi(&sa_hw_if, 0, sc, &sc->sc_dev);
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}
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static int
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init_aucc(sc)
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struct aucc_softc *sc;
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{
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register int i, err=0;
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/* init values per channel */
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for (i=0;i<4;i++) {
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sc->sc_channel[i].nd_freq=8000;
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sc->sc_channel[i].nd_per=freqtoper(8000);
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sc->sc_channel[i].nd_busy=0;
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sc->sc_channel[i].nd_dma=alloc_chipmem(AUDIO_BUF_SIZE*2);
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if (sc->sc_channel[i].nd_dma==NULL)
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err=1;
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sc->sc_channel[i].nd_dmalength=0;
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sc->sc_channel[i].nd_volume=64;
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sc->sc_channel[i].nd_intr=NULL;
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sc->sc_channel[i].nd_intrdata=NULL;
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sc->sc_channel[i].nd_doublebuf=0;
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DPRINTF(("dma buffer for channel %d is %p\n", i,
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sc->sc_channel[i].nd_dma));
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}
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if (err) {
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for(i=0;i<4;i++)
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if (sc->sc_channel[i].nd_dma)
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free_chipmem(sc->sc_channel[i].nd_dma);
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}
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sc->sc_channels=1;
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sc->sc_channelmask=0xf;
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/* clear interrupts and dma: */
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custom.intena = AUCC_ALLINTF;
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custom.dmacon = AUCC_ALLDMAF;;
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sc->sc_encoding=AUDIO_ENCODING_ULAW;
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return err;
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}
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int
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aucc_open(addr, flags)
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void *addr;
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int flags;
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{
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struct aucc_softc *sc = addr;
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int i;
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DPRINTF(("sa_open: unit %p\n",sc));
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if (sc->sc_open)
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return (EBUSY);
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sc->sc_open = 1;
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for (i=0;i<AUCC_MAXINT;i++) {
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sc->sc_channel[i].nd_intr=NULL;
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sc->sc_channel[i].nd_intrdata=NULL;
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}
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aucc=sc;
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sc->sc_channelmask=0xf;
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DPRINTF(("saopen: ok -> sc=0x%p\n",sc));
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return (0);
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}
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void
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aucc_close(addr)
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void *addr;
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{
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register struct aucc_softc *sc = addr;
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DPRINTF(("sa_close: sc=0x%p\n", sc));
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/*
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* halt i/o, clear open flag, and done.
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*/
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aucc_halt_output(sc);
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sc->sc_open = 0;
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DPRINTF(("sa_close: closed.\n"));
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}
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int
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aucc_set_out_sr(addr, sr)
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void *addr;
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u_long sr;
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{
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struct aucc_softc *sc=addr;
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u_long per;
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register int i;
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per=freqtoper(sr);
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if (per>0xffff)
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return EINVAL;
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sr=pertofreq(per);
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for (i=0;i<4;i++) {
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sc->sc_channel[i].nd_freq=sr;
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sc->sc_channel[i].nd_per=per;
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}
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return(0);
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}
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int
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aucc_query_encoding(addr, fp)
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void *addr;
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struct audio_encoding *fp;
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{
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switch (fp->index) {
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case 0:
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strcpy(fp->name, AudioEslinear);
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fp->encoding = AUDIO_ENCODING_SLINEAR;
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fp->precision = 8;
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fp->flags = 0;
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break;
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case 1:
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strcpy(fp->name, AudioEmulaw);
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fp->encoding = AUDIO_ENCODING_ULAW;
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fp->precision = 8;
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fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
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break;
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case 2:
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strcpy(fp->name, AudioEulinear);
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fp->encoding = AUDIO_ENCODING_ULINEAR;
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fp->precision = 8;
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fp->flags = AUDIO_ENCODINGFLAG_EMULATED;
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break;
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default:
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return(EINVAL);
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/*NOTREACHED*/
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}
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return(0);
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}
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int
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aucc_set_params(addr, setmode, usemode, p, r)
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void *addr;
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int setmode, usemode;
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struct audio_params *p, *r;
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{
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struct aucc_softc *sc = addr;
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/* if (setmode & AUMODE_RECORD)
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return 0 ENXIO*/;
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#ifdef AUCCDEBUG
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printf("aucc_set_params(setmode 0x%x, usemode 0x%x, enc %d, bits %d, chn %d, sr %ld)\n",
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setmode, usemode, p->encoding, p->precision, p->channels, p->sample_rate);
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#endif
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switch (p->encoding) {
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case AUDIO_ENCODING_ULAW:
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case AUDIO_ENCODING_SLINEAR:
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case AUDIO_ENCODING_SLINEAR_BE:
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case AUDIO_ENCODING_SLINEAR_LE:
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case AUDIO_ENCODING_ULINEAR_BE:
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case AUDIO_ENCODING_ULINEAR_LE:
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break;
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default:
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return EINVAL;
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/* NOTREADCHED */
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}
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if (p->precision != 8)
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return EINVAL;
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if ((p->channels<1) || (p->channels>4))
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return(EINVAL);
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sc->sc_channels = p->channels;
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sc->sc_encoding = p->encoding;
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return aucc_set_out_sr(addr, p->sample_rate);
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}
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int
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aucc_round_blocksize(addr, blk)
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void *addr;
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int blk;
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{
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return blk>AUDIO_BUF_SIZE?AUDIO_BUF_SIZE:blk; /* round up to even size */
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}
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int
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aucc_commit_settings(addr)
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void *addr;
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{
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register struct aucc_softc *sc = addr;
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register int i;
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DPRINTF(("sa_commit.\n"));
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for (i=0;i<4;i++) {
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custom.aud[i].vol=sc->sc_channel[i].nd_volume;
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custom.aud[i].per=sc->sc_channel[i].nd_per;
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}
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DPRINTF(("commit done\n"));
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return(0);
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}
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static int masks[4] = {1,3,7,15}; /* masks for n first channels */
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static int masks2[4] = {1,2,4,8};
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int
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aucc_start_output(addr, p, cc, intr, arg)
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void *addr;
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void *p;
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int cc;
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void (*intr) __P((void *));
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void *arg;
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{
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struct aucc_softc *sc;
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int mask;
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int i,j,k;
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u_short *dmap[4];
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u_char *pp;
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sc = addr;
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mask = sc->sc_channelmask;
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dmap[0] = dmap[1] = dmap[2] = dmap[3] = NULL;
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DPRINTF(("sa_start_output: cc=%d %p (%p)\n", cc, intr, arg));
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if (sc->sc_channels > 1)
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mask &=masks[sc->sc_channels-1];
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/* we use first sc_channels channels */
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if (mask==0) /* active and used channels are disjoint */
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return EINVAL;
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for (i=0;i<4;i++) { /* channels available ? */
|
|
if ((masks2[i]&mask)&&(sc->sc_channel[i].nd_busy))
|
|
return EBUSY; /* channel is busy */
|
|
if (channel[i].isaudio==-1)
|
|
return EBUSY; /* system uses them */
|
|
}
|
|
|
|
/* enable interrupt on 1st channel */
|
|
for (i=j=0;i<AUCC_MAXINT;i++) {
|
|
if (masks2[i]&mask) {
|
|
DPRINTF(("first channel is %d\n",i));
|
|
j=i;
|
|
sc->sc_channel[i].nd_intr=intr;
|
|
sc->sc_channel[i].nd_intrdata=arg;
|
|
break;
|
|
}
|
|
}
|
|
|
|
DPRINTF(("dmap is %p %p %p %p, mask=0x%x\n", dmap[0], dmap[1],
|
|
dmap[2], dmap[3], mask));
|
|
|
|
/* disable ints, dma for channels, until all parameters set */
|
|
/* XXX dont disable DMA! custom.dmacon=mask;*/
|
|
custom.intreq=mask<<INTB_AUD0;
|
|
custom.intena=mask<<INTB_AUD0;
|
|
|
|
/* copy data to dma buffer */
|
|
|
|
|
|
pp=(u_char *)p;
|
|
|
|
if (sc->sc_channels == 1) {
|
|
dmap[0] =
|
|
dmap[1] =
|
|
dmap[2] =
|
|
dmap[3] = sc->sc_channel[j].nd_dma;
|
|
} else {
|
|
for (k=0; k<4; k++) {
|
|
if (masks2[k+j]&mask)
|
|
dmap[k]=sc->sc_channel[k+j].nd_dma;
|
|
}
|
|
}
|
|
|
|
sc->sc_channel[j].nd_doublebuf ^= 1;
|
|
if (sc->sc_channel[j].nd_doublebuf) {
|
|
dmap[0] += AUDIO_BUF_SIZE/sizeof(u_short);
|
|
dmap[1] += AUDIO_BUF_SIZE/sizeof(u_short);
|
|
dmap[2] += AUDIO_BUF_SIZE/sizeof(u_short);
|
|
dmap[3] += AUDIO_BUF_SIZE/sizeof(u_short);
|
|
}
|
|
|
|
aucc_encode(sc->sc_encoding, sc->sc_channels, cc, pp, dmap);
|
|
|
|
/* dma buffers: we use same buffer 4 all channels */
|
|
/* write dma location and length */
|
|
for (i=k=0; i<4; i++) {
|
|
if (masks2[i] & mask) {
|
|
DPRINTF(("turning channel %d on\n",i));
|
|
/* sc->sc_channel[i].nd_busy=1;*/
|
|
channel[i].isaudio=1;
|
|
channel[i].play_count=1;
|
|
channel[i].handler=NULL;
|
|
custom.aud[i].per=sc->sc_channel[i].nd_per;
|
|
custom.aud[i].vol=sc->sc_channel[i].nd_volume;
|
|
custom.aud[i].lc = PREP_DMA_MEM(dmap[k++]);
|
|
custom.aud[i].len=cc/(sc->sc_channels*2);
|
|
sc->sc_channel[i].nd_mask=mask;
|
|
DPRINTF(("per is %d, vol is %d, len is %d\n",\
|
|
sc->sc_channel[i].nd_per,
|
|
sc->sc_channel[i].nd_volume, cc>>1));
|
|
|
|
}
|
|
}
|
|
|
|
channel[j].handler=aucc_inthdl;
|
|
|
|
/* enable ints */
|
|
custom.intena=INTF_SETCLR|INTF_INTEN| (masks2[j]<<INTB_AUD0);
|
|
|
|
DPRINTF(("enabled ints: 0x%x\n",(masks2[j]<<INTB_AUD0)));
|
|
|
|
/* enable dma */
|
|
custom.dmacon=DMAF_SETCLR|DMAF_MASTER|mask;
|
|
|
|
DPRINTF(("enabled dma, mask=0x%x\n",mask));
|
|
|
|
return(0);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
int
|
|
aucc_start_input(addr, p, cc, intr, arg)
|
|
void *addr;
|
|
void *p;
|
|
int cc;
|
|
void (*intr) __P((void *));
|
|
void *arg;
|
|
{
|
|
|
|
return ENXIO; /* no input */
|
|
}
|
|
|
|
int
|
|
aucc_halt_output(addr)
|
|
void *addr;
|
|
{
|
|
register struct aucc_softc *sc = addr;
|
|
register int i;
|
|
|
|
/* XXX only halt, if input is also halted ?? */
|
|
/* stop dma, etc */
|
|
custom.intena = AUCC_ALLINTF;
|
|
custom.dmacon = AUCC_ALLDMAF;
|
|
/* mark every busy unit idle */
|
|
for (i=0;i<4;i++) {
|
|
sc->sc_channel[i].nd_busy=sc->sc_channel[i].nd_mask=0;
|
|
channel[i].isaudio=0;
|
|
channel[i].play_count=0;
|
|
}
|
|
|
|
return(0);
|
|
}
|
|
|
|
int
|
|
aucc_halt_input(addr)
|
|
void *addr;
|
|
{
|
|
/* no input */
|
|
|
|
return ENXIO;
|
|
}
|
|
|
|
int
|
|
aucc_getdev(addr, retp)
|
|
void *addr;
|
|
struct audio_device *retp;
|
|
{
|
|
*retp = aucc_device;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
aucc_set_port(addr, cp)
|
|
void *addr;
|
|
mixer_ctrl_t *cp;
|
|
{
|
|
register struct aucc_softc *sc = addr;
|
|
register int i,j;
|
|
|
|
DPRINTF(("aucc_set_port: port=%d", cp->dev));
|
|
|
|
switch (cp->type) {
|
|
case AUDIO_MIXER_SET:
|
|
if (cp->dev!=AUCC_CHANNELS)
|
|
return EINVAL;
|
|
i=cp->un.mask;
|
|
if ((i<1)||(i>15))
|
|
return EINVAL;
|
|
sc->sc_channelmask=i;
|
|
break;
|
|
|
|
case AUDIO_MIXER_VALUE:
|
|
i=cp->un.value.num_channels;
|
|
if ((i<1)||(i>4))
|
|
return EINVAL;
|
|
|
|
#ifdef __XXXwhatsthat
|
|
if (cp->dev!=AUCC_VOLUME)
|
|
return EINVAL;
|
|
#endif
|
|
|
|
/* set volume for channel 0..i-1 */
|
|
|
|
/* evil workaround for xanim bug, IMO */
|
|
if ((sc->sc_channels == 1) && (i == 2)) {
|
|
sc->sc_channel[0].nd_volume =
|
|
sc->sc_channel[3].nd_volume =
|
|
cp->un.value.level[0]>>2;
|
|
sc->sc_channel[1].nd_volume =
|
|
sc->sc_channel[2].nd_volume =
|
|
cp->un.value.level[1]>>2;
|
|
} else if (i>1) {
|
|
for (j=0;j<i;j++)
|
|
sc->sc_channel[j].nd_volume =
|
|
cp->un.value.level[j]>>2;
|
|
} else if (sc->sc_channels > 1)
|
|
for (j=0; j<sc->sc_channels; j++)
|
|
sc->sc_channel[j].nd_volume =
|
|
cp->un.value.level[0]>>2;
|
|
else
|
|
for (j=0; j<4; j++)
|
|
sc->sc_channel[j].nd_volume =
|
|
cp->un.value.level[0]>>2;
|
|
break;
|
|
|
|
default:
|
|
return EINVAL;
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
aucc_get_port(addr, cp)
|
|
void *addr;
|
|
mixer_ctrl_t *cp;
|
|
{
|
|
register struct aucc_softc *sc = addr;
|
|
register int i,j;
|
|
|
|
DPRINTF(("aucc_get_port: port=%d", cp->dev));
|
|
|
|
switch (cp->type) {
|
|
case AUDIO_MIXER_SET:
|
|
if (cp->dev!=AUCC_CHANNELS)
|
|
return EINVAL;
|
|
cp->un.mask=sc->sc_channelmask;
|
|
break;
|
|
|
|
case AUDIO_MIXER_VALUE:
|
|
i = cp->un.value.num_channels;
|
|
if ((i<1)||(i>4))
|
|
return EINVAL;
|
|
|
|
for (j=0;j<i;j++)
|
|
cp->un.value.level[j] =
|
|
(sc->sc_channel[j].nd_volume<<2) +
|
|
(sc->sc_channel[j].nd_volume>>4);
|
|
break;
|
|
|
|
default:
|
|
return EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
int
|
|
aucc_get_props(addr)
|
|
void *addr;
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
aucc_query_devinfo(addr, dip)
|
|
void *addr;
|
|
register mixer_devinfo_t *dip;
|
|
{
|
|
register int i;
|
|
|
|
switch(dip->index) {
|
|
case AUCC_CHANNELS:
|
|
dip->type = AUDIO_MIXER_SET;
|
|
dip->mixer_class = AUCC_OUTPUT_CLASS;
|
|
dip->prev = dip->next = AUDIO_MIXER_LAST;
|
|
strcpy(dip->label.name, AudioNspeaker);
|
|
for (i=0;i<16;i++) {
|
|
sprintf(dip->un.s.member[i].label.name,
|
|
"channelmask%d", i);
|
|
dip->un.s.member[i].mask = i;
|
|
}
|
|
dip->un.s.num_mem = 16;
|
|
break;
|
|
|
|
case AUCC_VOLUME:
|
|
dip->type = AUDIO_MIXER_VALUE;
|
|
dip->mixer_class = AUCC_OUTPUT_CLASS;
|
|
dip->prev = dip->next = AUDIO_MIXER_LAST;
|
|
strcpy(dip->label.name, AudioNmaster);
|
|
dip->un.v.num_channels = 4;
|
|
strcpy(dip->un.v.units.name, AudioNvolume);
|
|
break;
|
|
|
|
case AUCC_OUTPUT_CLASS:
|
|
dip->type = AUDIO_MIXER_CLASS;
|
|
dip->mixer_class = AUCC_OUTPUT_CLASS;
|
|
dip->next = dip->prev = AUDIO_MIXER_LAST;
|
|
strcpy(dip->label.name, AudioCoutputs);
|
|
break;
|
|
|
|
default:
|
|
return ENXIO;
|
|
}
|
|
|
|
DPRINTF(("AUDIO_MIXER_DEVINFO: name=%s\n", dip->label.name));
|
|
|
|
return(0);
|
|
}
|
|
|
|
|
|
/* audio int handler */
|
|
void
|
|
aucc_inthdl(int ch)
|
|
{
|
|
register int i;
|
|
register int mask=aucc->sc_channel[ch].nd_mask;
|
|
|
|
/* for all channels in this maskgroup:
|
|
disable dma, int
|
|
mark idle */
|
|
DPRINTF(("inthandler called, channel %d, mask 0x%x\n",ch,mask));
|
|
|
|
custom.intreq=mask<<INTB_AUD0; /* clear request */
|
|
/* XXX: maybe we can leave ints and/or DMA on, if another sample has to be played?*/
|
|
custom.intena=mask<<INTB_AUD0;
|
|
/*
|
|
* XXX custom.dmacon=mask; NO!!!
|
|
*/
|
|
for (i=0;i<4;i++) {
|
|
if (masks2[i]&&mask) {
|
|
DPRINTF(("marking channel %d idle\n",i));
|
|
aucc->sc_channel[i].nd_busy=0;
|
|
aucc->sc_channel[i].nd_mask=0;
|
|
channel[i].isaudio=channel[i].play_count=0;
|
|
}
|
|
}
|
|
|
|
/* call handler */
|
|
if (aucc->sc_channel[ch].nd_intr) {
|
|
DPRINTF(("calling %p\n",aucc->sc_channel[ch].nd_intr));
|
|
(*(aucc->sc_channel[ch].nd_intr))(aucc->sc_channel[ch].nd_intrdata);
|
|
}
|
|
else DPRINTF(("zero int handler\n"));
|
|
DPRINTF(("ints done\n"));
|
|
}
|
|
|
|
|
|
|
|
|
|
/* transform frequency to period, adjust bounds */
|
|
static u_int
|
|
freqtoper(u_int freq)
|
|
{
|
|
u_int per=eclockfreq*5/freq;
|
|
|
|
if (per<124)
|
|
per=124; /* must have at least 124 ticks between samples */
|
|
|
|
return per;
|
|
}
|
|
|
|
/* transform period to frequency */
|
|
static u_int
|
|
pertofreq(u_int per)
|
|
{
|
|
u_int freq=eclockfreq*5/per;
|
|
|
|
|
|
return freq;
|
|
}
|
|
|
|
|
|
|
|
void
|
|
aucc_encode(enc, channels, i, p, dmap)
|
|
int enc, channels, i;
|
|
u_char *p;
|
|
u_short **dmap;
|
|
{
|
|
char *q, *r, *s, *t;
|
|
int off;
|
|
u_char *tab;
|
|
|
|
#ifdef AUCCDEBUG
|
|
static int debctl = 6;
|
|
#endif
|
|
|
|
off = 0;
|
|
tab = NULL;
|
|
|
|
#ifdef AUCCDEBUG
|
|
if (--debctl >= 0)
|
|
printf("Enc: enc %d, chan %d, dmap %p %p %p %p\n",
|
|
enc, channels, dmap[0], dmap[1], dmap[2], dmap[3]);
|
|
#endif
|
|
|
|
switch (enc) {
|
|
case AUDIO_ENCODING_ULAW:
|
|
tab=ulaw_to_lin;
|
|
break;
|
|
case AUDIO_ENCODING_ULINEAR_BE:
|
|
case AUDIO_ENCODING_ULINEAR_LE:
|
|
off=-128;
|
|
break;
|
|
case AUDIO_ENCODING_SLINEAR_BE:
|
|
case AUDIO_ENCODING_SLINEAR_LE:
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
q = (char *)dmap[0];
|
|
r = (char *)dmap[1];
|
|
s = (char *)dmap[2];
|
|
t = (char *)dmap[3];
|
|
|
|
if (tab)
|
|
while (i) {
|
|
switch (channels) {
|
|
case 4: *t++ = tab[*p++];
|
|
case 3: *s++ = tab[*p++];
|
|
case 2: *r++ = tab[*p++];
|
|
case 1: *q++ = tab[*p++];
|
|
}
|
|
i -= channels;
|
|
}
|
|
else
|
|
while (i) {
|
|
switch (channels) {
|
|
case 4: *t++ = *p++ + off;
|
|
case 3: *s++ = *p++ + off;
|
|
case 2: *r++ = *p++ + off;
|
|
case 1: *q++ = *p++ + off;
|
|
}
|
|
i -= channels;
|
|
}
|
|
|
|
}
|
|
|
|
#endif /* NAUCC > 0 */
|