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Diffstat (limited to 'chips/audio_defs.h')
| -rw-r--r-- | chips/audio_defs.h | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/chips/audio_defs.h b/chips/audio_defs.h deleted file mode 100644 index 448153e4..00000000 --- a/chips/audio_defs.h +++ /dev/null @@ -1,129 +0,0 @@ -/* - * Mach Operating System - * Copyright (c) 1993 Carnegie Mellon University - * All Rights Reserved. - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation. - * - * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" - * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR - * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * - * Carnegie Mellon requests users of this software to return to - * - * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU - * School of Computer Science - * Carnegie Mellon University - * Pittsburgh PA 15213-3890 - * - * any improvements or extensions that they make and grant Carnegie Mellon - * the rights to redistribute these changes. - */ -/*- - * Copyright (c) 1991, 1992 The Regents of the University of California. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the Computer Systems - * Engineering Group at Lawrence Berkeley Laboratory. - * 4. The name of the Laboratory may not be used to endorse or promote - * products derived from this software without specific prior written - * permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#define AUCB_SIZE 4096 -#define AUCB_MOD(k) ((k) & (AUCB_SIZE - 1)) - -#define AUCB_INIT(cb) ((cb)->cb_head = (cb)->cb_tail = (cb)->cb_drops = \ - (cb)->cb_pdrops = 0) - -#define AUCB_EMPTY(cb) ((cb)->cb_head == (cb)->cb_tail) -#define AUCB_FULL(cb) (AUCB_MOD((cb)->cb_tail + 1) == (cb)->cb_head) -#define AUCB_LEN(cb) (AUCB_MOD((cb)->cb_tail - (cb)->cb_head)) - -#define MAXBLKSIZE (AUCB_SIZE / 2) -#define DEFBLKSIZE 128 - -#ifndef LOCORE - -/* - * Our own circular buffers, used if not doing DMA. - * [af: with some work we could use the circbuf.c code instead] - */ -typedef struct au_cb { - int cb_head; /* queue head */ - int cb_tail; /* queue tail */ - int cb_thresh; /* threshold for wakeup */ - unsigned int cb_waking; /* needs wakeup at softint level */ - unsigned int cb_pause; /* io paused */ - unsigned int cb_drops; /* missed samples from over/underrun */ - unsigned int cb_pdrops; /* sun compat -- paused samples */ - unsigned char cb_data[AUCB_SIZE]; /* data buffer */ -} au_cb_t; - -/* - * Handle on a bi-directional stream of samples - */ -typedef struct au_io { - unsigned int au_stamp; /* time stamp */ - int au_lowat; /* xmit low water mark (for wakeup) */ - int au_hiwat; /* xmit high water mark (for wakeup) */ - int au_blksize; /* recv block (chunk) size */ - int au_backlog; /* # samples of xmit backlog to gen. */ - struct au_cb au_rb; /* read (recv) buffer */ - struct au_cb au_wb; /* write (xmit) buffer */ -} au_io_t; - -/* - * Interface to specific chips - */ -typedef struct { - void (*init)(); - void (*close)(); - void (*setport)(); - int (*getport)(); - void (*setgains)(); - void (*getgains)(); - io_return_t (*setstate)(); - io_return_t (*getstate)(); -} audio_switch_t; - -/* - * Callbacks into audio module, and interface to kernel - */ -void audio_attach( void *, audio_switch_t *, void **); -boolean_t audio_hwintr( void *, unsigned int, unsigned int *); - -extern io_return_t audio_open( int, int, io_req_t ); -extern io_return_t audio_close( int ); -extern io_return_t audio_read( int, io_req_t ); -extern io_return_t audio_write( int, io_req_t ); -extern io_return_t audio_get_status( int, dev_flavor_t, dev_status_t, natural_t *); -extern io_return_t audio_set_status( int, dev_flavor_t, dev_status_t, natural_t); - -#endif |