513693be6c
modify driver capability reporting format to list every audio format seperately- required for above and because we could not previously indicate that mono was unsupported. there should be no functional impact.
554 lines
16 KiB
C
554 lines
16 KiB
C
/*
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* Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <dev/sound/pcm/sound.h>
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#define FEEDBUFSZ 8192
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static unsigned char ulaw_to_u8[] = {
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3, 7, 11, 15, 19, 23, 27, 31,
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35, 39, 43, 47, 51, 55, 59, 63,
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66, 68, 70, 72, 74, 76, 78, 80,
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82, 84, 86, 88, 90, 92, 94, 96,
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98, 99, 100, 101, 102, 103, 104, 105,
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106, 107, 108, 109, 110, 111, 112, 113,
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113, 114, 114, 115, 115, 116, 116, 117,
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117, 118, 118, 119, 119, 120, 120, 121,
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121, 121, 122, 122, 122, 122, 123, 123,
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123, 123, 124, 124, 124, 124, 125, 125,
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125, 125, 125, 125, 126, 126, 126, 126,
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126, 126, 126, 126, 127, 127, 127, 127,
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127, 127, 127, 127, 127, 127, 127, 127,
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128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128,
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253, 249, 245, 241, 237, 233, 229, 225,
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221, 217, 213, 209, 205, 201, 197, 193,
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190, 188, 186, 184, 182, 180, 178, 176,
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174, 172, 170, 168, 166, 164, 162, 160,
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158, 157, 156, 155, 154, 153, 152, 151,
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150, 149, 148, 147, 146, 145, 144, 143,
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143, 142, 142, 141, 141, 140, 140, 139,
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139, 138, 138, 137, 137, 136, 136, 135,
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135, 135, 134, 134, 134, 134, 133, 133,
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133, 133, 132, 132, 132, 132, 131, 131,
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131, 131, 131, 131, 130, 130, 130, 130,
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130, 130, 130, 130, 129, 129, 129, 129,
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129, 129, 129, 129, 129, 129, 129, 129,
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128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128,
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128, 128, 128, 128, 128, 128, 128, 128,
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};
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static unsigned char u8_to_ulaw[] = {
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0, 0, 0, 0, 0, 1, 1, 1,
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1, 2, 2, 2, 2, 3, 3, 3,
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3, 4, 4, 4, 4, 5, 5, 5,
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5, 6, 6, 6, 6, 7, 7, 7,
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7, 8, 8, 8, 8, 9, 9, 9,
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9, 10, 10, 10, 10, 11, 11, 11,
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11, 12, 12, 12, 12, 13, 13, 13,
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13, 14, 14, 14, 14, 15, 15, 15,
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15, 16, 16, 17, 17, 18, 18, 19,
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19, 20, 20, 21, 21, 22, 22, 23,
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23, 24, 24, 25, 25, 26, 26, 27,
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27, 28, 28, 29, 29, 30, 30, 31,
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31, 32, 33, 34, 35, 36, 37, 38,
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39, 40, 41, 42, 43, 44, 45, 46,
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47, 49, 51, 53, 55, 57, 59, 61,
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63, 66, 70, 74, 78, 84, 92, 104,
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254, 231, 219, 211, 205, 201, 197, 193,
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190, 188, 186, 184, 182, 180, 178, 176,
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175, 174, 173, 172, 171, 170, 169, 168,
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167, 166, 165, 164, 163, 162, 161, 160,
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159, 159, 158, 158, 157, 157, 156, 156,
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155, 155, 154, 154, 153, 153, 152, 152,
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151, 151, 150, 150, 149, 149, 148, 148,
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147, 147, 146, 146, 145, 145, 144, 144,
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143, 143, 143, 143, 142, 142, 142, 142,
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141, 141, 141, 141, 140, 140, 140, 140,
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139, 139, 139, 139, 138, 138, 138, 138,
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137, 137, 137, 137, 136, 136, 136, 136,
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135, 135, 135, 135, 134, 134, 134, 134,
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133, 133, 133, 133, 132, 132, 132, 132,
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131, 131, 131, 131, 130, 130, 130, 130,
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129, 129, 129, 129, 128, 128, 128, 128,
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};
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struct feedertab_entry {
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SLIST_ENTRY(feedertab_entry) link;
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pcm_feeder *feeder;
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struct pcm_feederdesc *desc;
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int idx;
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};
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static SLIST_HEAD(, feedertab_entry) feedertab;
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/*****************************************************************************/
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void
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feeder_register(void *p)
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{
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pcm_feeder *f = p;
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struct feedertab_entry *fte;
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static int feedercnt = 0;
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int i;
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if (feedercnt == 0) {
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if (f->desc)
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panic("FIRST FEEDER NOT ROOT: %s\n", f->name);
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SLIST_INIT(&feedertab);
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fte = malloc(sizeof(*fte), M_DEVBUF, M_NOWAIT);
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fte->feeder = f;
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fte->desc = NULL;
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fte->idx = feedercnt;
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SLIST_INSERT_HEAD(&feedertab, fte, link);
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feedercnt++;
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return;
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}
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/* printf("installing feeder: %s\n", f->name); */
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i = 0;
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while ((feedercnt < MAXFEEDERS) && (f->desc[i].type > 0)) {
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fte = malloc(sizeof(*fte), M_DEVBUF, M_NOWAIT);
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fte->feeder = f;
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fte->desc = &f->desc[i];
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fte->idx = feedercnt;
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fte->desc->idx = feedercnt;
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SLIST_INSERT_HEAD(&feedertab, fte, link);
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i++;
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}
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feedercnt++;
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if (feedercnt >= MAXFEEDERS)
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printf("MAXFEEDERS exceeded\n");
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}
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/*****************************************************************************/
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static int
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feed_root(pcm_feeder *feeder, pcm_channel *ch, u_int8_t *buffer, u_int32_t count, struct uio *stream)
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{
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int ret, s;
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KASSERT(count, ("feed_root: count == 0"));
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count &= ~((1 << ch->align) - 1);
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KASSERT(count, ("feed_root: aligned count == 0"));
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s = spltty();
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count = min(count, stream->uio_resid);
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if (count) {
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ret = uiomove(buffer, count, stream);
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KASSERT(ret == 0, ("feed_root: uiomove failed"));
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}
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splx(s);
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return count;
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}
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static pcm_feeder feeder_root = { "root", 0, NULL, NULL, NULL, feed_root };
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SYSINIT(feeder_root, SI_SUB_DRIVERS, SI_ORDER_FIRST, feeder_register, &feeder_root);
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/*****************************************************************************/
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static int
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feed_8to16le(pcm_feeder *f, pcm_channel *c, u_int8_t *b, u_int32_t count, struct uio *stream)
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{
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int i, j, k;
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k = f->source->feed(f->source, c, b, count / 2, stream);
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j = k - 1;
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i = j * 2 + 1;
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while (i > 0 && j >= 0) {
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b[i--] = b[j--];
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b[i--] = 0;
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}
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return k * 2;
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}
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static struct pcm_feederdesc desc_8to16le[] = {
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{FEEDER_FMT, AFMT_U8, AFMT_U16_LE, 0},
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{FEEDER_FMT, AFMT_U8 | AFMT_STEREO, AFMT_U16_LE | AFMT_STEREO, 0},
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{FEEDER_FMT, AFMT_S8, AFMT_S16_LE, 0},
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{FEEDER_FMT, AFMT_S8 | AFMT_STEREO, AFMT_S16_LE | AFMT_STEREO, 0},
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{0},
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};
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static pcm_feeder feeder_8to16le =
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{ "8to16le", 0, desc_8to16le, NULL, NULL, feed_8to16le };
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SYSINIT(feeder_8to16le, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, feeder_register, &feeder_8to16le);
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/*****************************************************************************/
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static int
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feed_16to8_init(pcm_feeder *f)
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{
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f->data = malloc(FEEDBUFSZ, M_DEVBUF, M_NOWAIT);
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return (f->data == NULL);
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}
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static int
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feed_16to8_free(pcm_feeder *f)
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{
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if (f->data) free(f->data, M_DEVBUF);
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f->data = NULL;
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return 0;
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}
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static int
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feed_16leto8(pcm_feeder *f, pcm_channel *c, u_int8_t *b, u_int32_t count, struct uio *stream)
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{
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u_int32_t i = 0, toget = count * 2;
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int j = 1, k;
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k = f->source->feed(f->source, c, f->data, min(toget, FEEDBUFSZ), stream);
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while (j < k) {
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b[i++] = ((u_int8_t *)f->data)[j];
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j += 2;
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}
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return i;
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}
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static struct pcm_feederdesc desc_16leto8[] = {
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{FEEDER_FMT, AFMT_U16_LE, AFMT_U8, 0},
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{FEEDER_FMT, AFMT_U16_LE | AFMT_STEREO, AFMT_U8 | AFMT_STEREO, 0},
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{FEEDER_FMT, AFMT_S16_LE, AFMT_S8, 0},
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{FEEDER_FMT, AFMT_S16_LE | AFMT_STEREO, AFMT_S8 | AFMT_STEREO, 0},
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{0},
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};
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static pcm_feeder feeder_16leto8 =
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{ "16leto8", 1, desc_16leto8, feed_16to8_init, feed_16to8_free, feed_16leto8 };
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SYSINIT(feeder_16leto8, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, feeder_register, &feeder_16leto8);
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/*****************************************************************************/
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static int
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feed_monotostereo8(pcm_feeder *f, pcm_channel *c, u_int8_t *b, u_int32_t count, struct uio *stream)
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{
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int i, j, k = f->source->feed(f->source, c, b, count / 2, stream);
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j = k - 1;
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i = j * 2 + 1;
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while (i > 0 && j >= 0) {
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b[i--] = b[j];
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b[i--] = b[j];
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j--;
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}
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return k * 2;
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}
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static struct pcm_feederdesc desc_monotostereo8[] = {
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{FEEDER_FMT, AFMT_U8, AFMT_U8 | AFMT_STEREO, 0},
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{FEEDER_FMT, AFMT_S8, AFMT_S8 | AFMT_STEREO, 0},
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{0},
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};
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static pcm_feeder feeder_monotostereo8 =
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{ "monotostereo8", 0, desc_monotostereo8, NULL, NULL, feed_monotostereo8 };
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SYSINIT(feeder_monotostereo8, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, feeder_register, &feeder_monotostereo8);
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/*****************************************************************************/
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static int
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feed_stereotomono8_init(pcm_feeder *f)
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{
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f->data = malloc(FEEDBUFSZ, M_DEVBUF, M_NOWAIT);
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return (f->data == NULL);
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}
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static int
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feed_stereotomono8_free(pcm_feeder *f)
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{
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if (f->data) free(f->data, M_DEVBUF);
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f->data = NULL;
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return 0;
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}
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static int
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feed_stereotomono8(pcm_feeder *f, pcm_channel *c, u_int8_t *b, u_int32_t count, struct uio *stream)
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{
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u_int32_t i = 0, toget = count * 2;
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int j = 0, k;
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k = f->source->feed(f->source, c, f->data, min(toget, FEEDBUFSZ), stream);
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while (j < k) {
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b[i++] = ((u_int8_t *)f->data)[j];
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j += 2;
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}
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return i;
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}
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static struct pcm_feederdesc desc_stereotomono8[] = {
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{FEEDER_FMT, AFMT_U8 | AFMT_STEREO, AFMT_U8, 0},
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{FEEDER_FMT, AFMT_S8 | AFMT_STEREO, AFMT_S8, 0},
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{0},
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};
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static pcm_feeder feeder_stereotomono8 =
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{ "stereotomono8", 1, desc_stereotomono8, feed_stereotomono8_init, feed_stereotomono8_free, feed_stereotomono8 };
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SYSINIT(feeder_stereotomono8, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, feeder_register, &feeder_stereotomono8);
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/*****************************************************************************/
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static int
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feed_endian(pcm_feeder *f, pcm_channel *c, u_int8_t *b, u_int32_t count, struct uio *stream)
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{
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u_int8_t t;
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int i = 0, j = f->source->feed(f->source, c, b, count, stream);
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while (i < j) {
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t = b[i];
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b[i] = b[i + 1];
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b[i + 1] = t;
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i += 2;
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}
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return i;
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}
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static struct pcm_feederdesc desc_endian[] = {
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{FEEDER_FMT, AFMT_U16_LE, AFMT_U16_BE, 0},
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{FEEDER_FMT, AFMT_U16_LE | AFMT_STEREO, AFMT_U16_BE | AFMT_STEREO, 0},
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{FEEDER_FMT, AFMT_S16_LE, AFMT_S16_BE, 0},
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{FEEDER_FMT, AFMT_S16_LE | AFMT_STEREO, AFMT_S16_BE | AFMT_STEREO, 0},
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{FEEDER_FMT, AFMT_U16_BE, AFMT_U16_LE, 0},
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{FEEDER_FMT, AFMT_U16_BE | AFMT_STEREO, AFMT_U16_LE | AFMT_STEREO, 0},
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{FEEDER_FMT, AFMT_S16_BE, AFMT_S16_LE, 0},
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{FEEDER_FMT, AFMT_S16_BE | AFMT_STEREO, AFMT_S16_LE | AFMT_STEREO, 0},
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{0},
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};
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static pcm_feeder feeder_endian = { "endian", -1, desc_endian, NULL, NULL, feed_endian };
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SYSINIT(feeder_endian, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, feeder_register, &feeder_endian);
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/*****************************************************************************/
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static int
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feed_sign(pcm_feeder *f, pcm_channel *c, u_int8_t *b, u_int32_t count, struct uio *stream)
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{
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int i = 0, j = f->source->feed(f->source, c, b, count, stream);
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int ssz = (int)f->data, ofs = ssz - 1;
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while (i < j) {
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b[i + ofs] ^= 0x80;
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i += ssz;
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}
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return i;
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}
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static struct pcm_feederdesc desc_sign8[] = {
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{FEEDER_FMT, AFMT_U8, AFMT_S8, 0},
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{FEEDER_FMT, AFMT_U8 | AFMT_STEREO, AFMT_S8 | AFMT_STEREO, 0},
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{FEEDER_FMT, AFMT_S8, AFMT_U8, 0},
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{FEEDER_FMT, AFMT_S8 | AFMT_STEREO, AFMT_U8 | AFMT_STEREO, 0},
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{0},
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};
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static pcm_feeder feeder_sign8 =
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{ "sign8", 0, desc_sign8, NULL, NULL, feed_sign, (void *)1 };
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SYSINIT(feeder_sign8, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, feeder_register, &feeder_sign8);
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static struct pcm_feederdesc desc_sign16le[] = {
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{FEEDER_FMT, AFMT_U16_LE, AFMT_S16_LE, 0},
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{FEEDER_FMT, AFMT_U16_LE | AFMT_STEREO, AFMT_S16_LE | AFMT_STEREO, 0},
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{FEEDER_FMT, AFMT_S16_LE, AFMT_U16_LE, 0},
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{FEEDER_FMT, AFMT_S16_LE | AFMT_STEREO, AFMT_U16_LE | AFMT_STEREO, 0},
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{0},
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};
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static pcm_feeder feeder_sign16le =
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{ "sign16le", -1, desc_sign16le, NULL, NULL, feed_sign, (void *)2 };
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SYSINIT(feeder_sign16le, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, feeder_register, &feeder_sign16le);
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/*****************************************************************************/
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static int
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feed_table(pcm_feeder *f, pcm_channel *c, u_int8_t *b, u_int32_t count, struct uio *stream)
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{
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int i = 0, j = f->source->feed(f->source, c, b, count, stream);
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while (i < j) {
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b[i] = ((u_int8_t *)f->data)[b[i]];
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i++;
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}
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return i;
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}
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static struct pcm_feederdesc desc_ulawtou8[] = {
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{FEEDER_FMT, AFMT_MU_LAW, AFMT_U8, 0},
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{FEEDER_FMT, AFMT_MU_LAW | AFMT_STEREO, AFMT_U8 | AFMT_STEREO, 0},
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{0},
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};
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static pcm_feeder feeder_ulawtou8 =
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{ "ulawtou8", 0, desc_ulawtou8, NULL, NULL, feed_table, ulaw_to_u8 };
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SYSINIT(feeder_ulawtou8, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, feeder_register, &feeder_ulawtou8);
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static struct pcm_feederdesc desc_u8toulaw[] = {
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{FEEDER_FMT, AFMT_U8, AFMT_MU_LAW, 0},
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{FEEDER_FMT, AFMT_U8 | AFMT_STEREO, AFMT_MU_LAW | AFMT_STEREO, 0},
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{0},
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};
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static pcm_feeder feeder_u8toulaw =
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{ "u8toulaw", 0, desc_u8toulaw, NULL, NULL, feed_table, u8_to_ulaw };
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SYSINIT(feeder_u8toulaw, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, feeder_register, &feeder_u8toulaw);
|
|
|
|
/*****************************************************************************/
|
|
|
|
static int
|
|
cmpdesc(struct pcm_feederdesc *n, struct pcm_feederdesc *m)
|
|
{
|
|
return ((n->type == m->type) && (n->in == m->in) && (n->out == m->out) && (n->flags == m->flags));
|
|
}
|
|
|
|
pcm_feeder *
|
|
feeder_get(struct pcm_feederdesc *desc)
|
|
{
|
|
struct feedertab_entry *fte;
|
|
|
|
SLIST_FOREACH(fte, &feedertab, link) {
|
|
if ((fte->desc != NULL) && cmpdesc(desc, fte->desc))
|
|
return fte->feeder;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
pcm_feeder *
|
|
feeder_getroot()
|
|
{
|
|
struct feedertab_entry *fte;
|
|
|
|
SLIST_FOREACH(fte, &feedertab, link) {
|
|
if (fte->desc == NULL)
|
|
return fte->feeder;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
int
|
|
chn_removefeeder(pcm_channel *c)
|
|
{
|
|
pcm_feeder *f;
|
|
|
|
if (c->feeder->source == NULL)
|
|
return -1;
|
|
f = c->feeder->source;
|
|
if (c->feeder->free)
|
|
c->feeder->free(c->feeder);
|
|
free(c->feeder, M_DEVBUF);
|
|
c->feeder = f;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
chainok(pcm_feeder *test, pcm_feeder *stop)
|
|
{
|
|
u_int32_t visited[MAXFEEDERS / 32];
|
|
u_int32_t idx, mask;
|
|
|
|
bzero(visited, sizeof(visited));
|
|
while (test && (test != stop)) {
|
|
idx = test->desc->idx;
|
|
if (idx < 0)
|
|
panic("bad idx %d", idx);
|
|
if (idx >= MAXFEEDERS)
|
|
panic("bad idx %d", idx);
|
|
mask = 1 << (idx & 31);
|
|
idx >>= 5;
|
|
if (visited[idx] & mask)
|
|
return 0;
|
|
visited[idx] |= mask;
|
|
test = test->source;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static pcm_feeder *
|
|
feeder_fmtchain(u_int32_t *to, pcm_feeder *source, pcm_feeder *stop, int maxdepth)
|
|
{
|
|
struct feedertab_entry *fte;
|
|
pcm_feeder *try, *ret;
|
|
struct pcm_feederdesc *trydesc;
|
|
|
|
/* printf("trying %s...\n", source->name); */
|
|
if (fmtvalid(source->desc->out, to)) {
|
|
/* printf("got it\n"); */
|
|
return source;
|
|
}
|
|
|
|
if (maxdepth < 0)
|
|
return NULL;
|
|
|
|
try = malloc(sizeof(*try), M_DEVBUF, M_NOWAIT);
|
|
trydesc = malloc(sizeof(*trydesc), M_DEVBUF, M_NOWAIT);
|
|
trydesc->type = FEEDER_FMT;
|
|
trydesc->in = source->desc->out;
|
|
trydesc->out = 0;
|
|
trydesc->flags = 0;
|
|
trydesc->idx = -1;
|
|
|
|
SLIST_FOREACH(fte, &feedertab, link) {
|
|
if ((fte->desc) && (fte->desc->in == source->desc->out)) {
|
|
*try = *(fte->feeder);
|
|
try->source = source;
|
|
try->desc = trydesc;
|
|
trydesc->out = fte->desc->out;
|
|
trydesc->idx = fte->idx;
|
|
ret = chainok(try, stop)? feeder_fmtchain(to, try, stop, maxdepth - 1) : NULL;
|
|
if (ret != NULL)
|
|
return ret;
|
|
}
|
|
}
|
|
free(try, M_DEVBUF);
|
|
free(trydesc, M_DEVBUF);
|
|
/* printf("giving up %s...\n", source->name); */
|
|
return NULL;
|
|
}
|
|
|
|
u_int32_t
|
|
chn_feedchain(pcm_channel *c, u_int32_t *to)
|
|
{
|
|
pcm_feeder *try, *stop;
|
|
int max;
|
|
|
|
stop = c->feeder;
|
|
try = NULL;
|
|
max = 0;
|
|
while (try == NULL && max++ < 8)
|
|
try = feeder_fmtchain(to, c->feeder, stop, max);
|
|
if (try == NULL)
|
|
return 0;
|
|
c->feeder = try;
|
|
c->align = 0;
|
|
/* printf("chain: "); */
|
|
while (try && (try != stop)) {
|
|
/* printf("%s [%d]", try->name, try->desc->idx); */
|
|
/* if (try->source) */
|
|
/* printf(" -> "); */
|
|
if (try->init)
|
|
try->init(try);
|
|
if (try->align > 0)
|
|
c->align += try->align;
|
|
else if (try->align < 0 && c->align < -try->align)
|
|
c->align = -try->align;
|
|
try = try->source;
|
|
}
|
|
/* printf("%s [%d]", try->name, try->desc->idx); */
|
|
return c->feeder->desc->out;
|
|
}
|