1/* 2 * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 *
| 1/* 2 * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 *
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26 * $FreeBSD: head/sys/dev/sound/pcm/channel.h 67652 2000-10-26 20:46:58Z cg $
| 26 * $FreeBSD: head/sys/dev/sound/pcm/channel.h 70134 2000-12-18 01:36:41Z cg $
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27 */ 28
| 27 */ 28
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| 29#include "channel_if.h" 30
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29int chn_reinit(pcm_channel *c); 30int chn_write(pcm_channel *c, struct uio *buf); 31int chn_read(pcm_channel *c, struct uio *buf); 32u_int32_t chn_start(pcm_channel *c, int force); 33int chn_sync(pcm_channel *c, int threshold); 34int chn_flush(pcm_channel *c); 35int chn_poll(pcm_channel *c, int ev, struct proc *p); 36 37int chn_init(pcm_channel *c, void *devinfo, int dir); 38int chn_kill(pcm_channel *c); 39int chn_setdir(pcm_channel *c, int dir); 40int chn_reset(pcm_channel *c, u_int32_t fmt); 41int chn_setvolume(pcm_channel *c, int left, int right); 42int chn_setspeed(pcm_channel *c, int speed); 43int chn_setformat(pcm_channel *c, u_int32_t fmt); 44int chn_setblocksize(pcm_channel *c, int blkcnt, int blksz); 45int chn_trigger(pcm_channel *c, int go); 46int chn_getptr(pcm_channel *c); 47pcmchan_caps *chn_getcaps(pcm_channel *c); 48u_int32_t chn_getformats(pcm_channel *c); 49 50int chn_allocbuf(snd_dbuf *b, bus_dma_tag_t parent_dmat); 51void chn_freebuf(snd_dbuf *b); 52void chn_resetbuf(pcm_channel *c); 53void chn_intr(pcm_channel *c); 54void chn_checkunderflow(pcm_channel *c); 55int chn_wrfeed(pcm_channel *c); 56int chn_rdfeed(pcm_channel *c); 57int chn_abort(pcm_channel *c); 58 59int fmtvalid(u_int32_t fmt, u_int32_t *fmtlist); 60 61void buf_isadma(snd_dbuf *b, int go); 62int buf_isadmaptr(snd_dbuf *b); 63 64#define PCMDIR_PLAY 1 65#define PCMDIR_REC -1 66 67#define PCMTRIG_START 1 68#define PCMTRIG_EMLDMAWR 2 69#define PCMTRIG_EMLDMARD 3 70#define PCMTRIG_STOP 0 71#define PCMTRIG_ABORT -1 72 73#define CHN_F_READING 0x00000001 /* have a pending read */ 74#define CHN_F_WRITING 0x00000002 /* have a pending write */ 75#define CHN_F_CLOSING 0x00000004 /* a pending close */ 76#define CHN_F_ABORTING 0x00000008 /* a pending abort */ 77#define CHN_F_PENDING_IO (CHN_F_READING | CHN_F_WRITING) 78#define CHN_F_RUNNING 0x00000010 /* dma is running */ 79#define CHN_F_TRIGGERED 0x00000020 80#define CHN_F_NOTRIGGER 0x00000040 81 82#define CHN_F_BUSY 0x00001000 /* has been opened */ 83#define CHN_F_HAS_SIZE 0x00002000 /* user set block size */ 84#define CHN_F_NBIO 0x00004000 /* do non-blocking i/o */ 85#define CHN_F_INIT 0x00008000 /* changed parameters. need init */ 86#define CHN_F_MAPPED 0x00010000 /* has been mmap()ed */ 87#define CHN_F_DEAD 0x00020000
| 31int chn_reinit(pcm_channel *c); 32int chn_write(pcm_channel *c, struct uio *buf); 33int chn_read(pcm_channel *c, struct uio *buf); 34u_int32_t chn_start(pcm_channel *c, int force); 35int chn_sync(pcm_channel *c, int threshold); 36int chn_flush(pcm_channel *c); 37int chn_poll(pcm_channel *c, int ev, struct proc *p); 38 39int chn_init(pcm_channel *c, void *devinfo, int dir); 40int chn_kill(pcm_channel *c); 41int chn_setdir(pcm_channel *c, int dir); 42int chn_reset(pcm_channel *c, u_int32_t fmt); 43int chn_setvolume(pcm_channel *c, int left, int right); 44int chn_setspeed(pcm_channel *c, int speed); 45int chn_setformat(pcm_channel *c, u_int32_t fmt); 46int chn_setblocksize(pcm_channel *c, int blkcnt, int blksz); 47int chn_trigger(pcm_channel *c, int go); 48int chn_getptr(pcm_channel *c); 49pcmchan_caps *chn_getcaps(pcm_channel *c); 50u_int32_t chn_getformats(pcm_channel *c); 51 52int chn_allocbuf(snd_dbuf *b, bus_dma_tag_t parent_dmat); 53void chn_freebuf(snd_dbuf *b); 54void chn_resetbuf(pcm_channel *c); 55void chn_intr(pcm_channel *c); 56void chn_checkunderflow(pcm_channel *c); 57int chn_wrfeed(pcm_channel *c); 58int chn_rdfeed(pcm_channel *c); 59int chn_abort(pcm_channel *c); 60 61int fmtvalid(u_int32_t fmt, u_int32_t *fmtlist); 62 63void buf_isadma(snd_dbuf *b, int go); 64int buf_isadmaptr(snd_dbuf *b); 65 66#define PCMDIR_PLAY 1 67#define PCMDIR_REC -1 68 69#define PCMTRIG_START 1 70#define PCMTRIG_EMLDMAWR 2 71#define PCMTRIG_EMLDMARD 3 72#define PCMTRIG_STOP 0 73#define PCMTRIG_ABORT -1 74 75#define CHN_F_READING 0x00000001 /* have a pending read */ 76#define CHN_F_WRITING 0x00000002 /* have a pending write */ 77#define CHN_F_CLOSING 0x00000004 /* a pending close */ 78#define CHN_F_ABORTING 0x00000008 /* a pending abort */ 79#define CHN_F_PENDING_IO (CHN_F_READING | CHN_F_WRITING) 80#define CHN_F_RUNNING 0x00000010 /* dma is running */ 81#define CHN_F_TRIGGERED 0x00000020 82#define CHN_F_NOTRIGGER 0x00000040 83 84#define CHN_F_BUSY 0x00001000 /* has been opened */ 85#define CHN_F_HAS_SIZE 0x00002000 /* user set block size */ 86#define CHN_F_NBIO 0x00004000 /* do non-blocking i/o */ 87#define CHN_F_INIT 0x00008000 /* changed parameters. need init */ 88#define CHN_F_MAPPED 0x00010000 /* has been mmap()ed */ 89#define CHN_F_DEAD 0x00020000
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| 90#define CHN_F_BADSETTING 0x00040000
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88
| 91
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89
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90#define CHN_F_RESET (CHN_F_BUSY | CHN_F_DEAD) 91 92/* 93 * This should be large enough to hold all pcm data between 94 * tsleeps in chn_{read,write} at the highest sample rate. 95 * (which is usually 48kHz * 16bit * stereo = 192000 bytes/sec) 96 */ 97#define CHN_2NDBUFBLKSIZE (2 * 1024) 98/* The total number of blocks per secondary buffer. */ 99#define CHN_2NDBUFBLKNUM (32) 100/* The size of a whole secondary buffer. */ 101#define CHN_2NDBUFMAXSIZE (131072)
| 92#define CHN_F_RESET (CHN_F_BUSY | CHN_F_DEAD) 93 94/* 95 * This should be large enough to hold all pcm data between 96 * tsleeps in chn_{read,write} at the highest sample rate. 97 * (which is usually 48kHz * 16bit * stereo = 192000 bytes/sec) 98 */ 99#define CHN_2NDBUFBLKSIZE (2 * 1024) 100/* The total number of blocks per secondary buffer. */ 101#define CHN_2NDBUFBLKNUM (32) 102/* The size of a whole secondary buffer. */ 103#define CHN_2NDBUFMAXSIZE (131072)
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| 104 105#define CHANNEL_DECLARE(name) static DEFINE_CLASS(name, name ## _methods, sizeof(struct kobj))
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