1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2005-2009 Ariff Abdullah <ariff@FreeBSD.org> 5 * Copyright (c) 1999 Cameron Grant <cg@FreeBSD.org> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 enum feeder_type { 31 FEEDER_ROOT, 32 FEEDER_FORMAT, 33 FEEDER_MIXER, 34 FEEDER_RATE, 35 FEEDER_EQ, 36 FEEDER_VOLUME, 37 FEEDER_MATRIX, 38 FEEDER_LAST, 39 }; 40 41 struct pcm_feederdesc { 42 u_int32_t in, out; 43 }; 44 45 struct feeder_class { 46 KOBJ_CLASS_FIELDS; 47 enum feeder_type type; 48 SLIST_ENTRY(feeder_class) link; 49 }; 50 51 struct pcm_feeder { 52 KOBJ_FIELDS; 53 int align; 54 struct pcm_feederdesc *desc, desc_static; 55 void *data; 56 struct feeder_class *class; 57 struct pcm_feeder *source, *parent; 58 59 }; 60 61 void feeder_register(void *p); 62 struct feeder_class *feeder_getclass(u_int32_t type); 63 64 u_int32_t snd_fmtscore(u_int32_t fmt); 65 u_int32_t snd_fmtbestbit(u_int32_t fmt, u_int32_t *fmts); 66 u_int32_t snd_fmtbestchannel(u_int32_t fmt, u_int32_t *fmts); 67 u_int32_t snd_fmtbest(u_int32_t fmt, u_int32_t *fmts); 68 69 int feeder_add(struct pcm_channel *c, struct feeder_class *fc, 70 struct pcm_feederdesc *desc); 71 void feeder_remove(struct pcm_channel *c); 72 struct pcm_feeder *feeder_find(struct pcm_channel *c, u_int32_t type); 73 int feeder_chain(struct pcm_channel *); 74 75 #define FEEDER_DECLARE(feeder, ctype) \ 76 static struct feeder_class feeder ## _class = { \ 77 .name = #feeder, \ 78 .methods = feeder ## _methods, \ 79 .size = sizeof(struct pcm_feeder), \ 80 .type = ctype, \ 81 }; \ 82 SYSINIT(feeder, SI_SUB_DRIVERS, SI_ORDER_ANY, feeder_register, \ 83 &feeder ## _class) 84 85 /* feeder_format */ 86 enum { 87 FEEDFORMAT_CHANNELS 88 }; 89 90 /* feeder_mixer */ 91 enum { 92 FEEDMIXER_CHANNELS 93 }; 94 95 /* feeder_rate */ 96 enum { 97 FEEDRATE_SRC, 98 FEEDRATE_DST, 99 FEEDRATE_QUALITY, 100 FEEDRATE_CHANNELS 101 }; 102 103 #define FEEDRATE_RATEMIN 1 104 #define FEEDRATE_RATEMAX 2016000 /* 48000 * 42 */ 105 #define FEEDRATE_MIN 1 106 #define FEEDRATE_MAX 0x7fffff /* sign 24bit ~ 8ghz ! */ 107 #define FEEDRATE_ROUNDHZ 25 108 #define FEEDRATE_ROUNDHZ_MIN 0 109 #define FEEDRATE_ROUNDHZ_MAX 500 110 111 extern int feeder_rate_min; 112 extern int feeder_rate_max; 113 extern int feeder_rate_round; 114 extern int feeder_rate_quality; 115 116 /* feeder_eq */ 117 enum { 118 FEEDEQ_CHANNELS, 119 FEEDEQ_RATE, 120 FEEDEQ_TREBLE, 121 FEEDEQ_BASS, 122 FEEDEQ_PREAMP, 123 FEEDEQ_STATE, 124 FEEDEQ_DISABLE, 125 FEEDEQ_ENABLE, 126 FEEDEQ_BYPASS, 127 FEEDEQ_UNKNOWN 128 }; 129 130 int feeder_eq_validrate(uint32_t); 131 void feeder_eq_initsys(device_t); 132 133 /* feeder_volume */ 134 enum { 135 FEEDVOLUME_CLASS, 136 FEEDVOLUME_CHANNELS, 137 FEEDVOLUME_STATE, 138 FEEDVOLUME_ENABLE, 139 FEEDVOLUME_BYPASS 140 }; 141 142 int feeder_volume_apply_matrix(struct pcm_feeder *, struct pcmchan_matrix *); 143 144 /* feeder_matrix */ 145 int feeder_matrix_default_id(uint32_t); 146 struct pcmchan_matrix *feeder_matrix_default_channel_map(uint32_t); 147 148 uint32_t feeder_matrix_default_format(uint32_t); 149 150 int feeder_matrix_format_id(uint32_t); 151 struct pcmchan_matrix *feeder_matrix_format_map(uint32_t); 152 153 struct pcmchan_matrix *feeder_matrix_id_map(int); 154 155 int feeder_matrix_setup(struct pcm_feeder *, struct pcmchan_matrix *, 156 struct pcmchan_matrix *); 157 int feeder_matrix_compare(struct pcmchan_matrix *, struct pcmchan_matrix *); 158 159 /* 4Front OSS stuffs */ 160 int feeder_matrix_oss_get_channel_order(struct pcmchan_matrix *, 161 unsigned long long *); 162 int feeder_matrix_oss_set_channel_order(struct pcmchan_matrix *, 163 unsigned long long *); 164 165 /* 166 * By default, various feeders only deal with sign 16/32 bit native-endian 167 * since it should provide the fastest processing path. Processing 8bit samples 168 * is too noisy due to limited dynamic range, while 24bit is quite slow due to 169 * unnatural per-byte read/write. However, for debugging purposes, ensuring 170 * implementation correctness and torture test, the following can be defined: 171 * 172 * SND_FEEDER_MULTIFORMAT - Compile all type of converters, but force 173 * 8bit samples to be converted to 16bit 174 * native-endian for better dynamic range. 175 * Process 24bit samples natively. 176 * SND_FEEDER_FULL_MULTIFORMAT - Ditto, but process 8bit samples natively. 177 */ 178 #ifdef SND_FEEDER_FULL_MULTIFORMAT 179 #undef SND_FEEDER_MULTIFORMAT 180 #define SND_FEEDER_MULTIFORMAT 1 181 #endif 182