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 struct pcm_feederdesc { 31 u_int32_t type; 32 u_int32_t in, out; 33 u_int32_t flags; 34 int idx; 35 }; 36 37 struct feeder_class { 38 KOBJ_CLASS_FIELDS; 39 struct pcm_feederdesc *desc; 40 void *data; 41 }; 42 43 struct pcm_feeder { 44 KOBJ_FIELDS; 45 int align; 46 struct pcm_feederdesc *desc, desc_static; 47 void *data; 48 struct feeder_class *class; 49 struct pcm_feeder *source, *parent; 50 51 }; 52 53 void feeder_register(void *p); 54 struct feeder_class *feeder_getclass(struct pcm_feederdesc *desc); 55 56 u_int32_t snd_fmtscore(u_int32_t fmt); 57 u_int32_t snd_fmtbestbit(u_int32_t fmt, u_int32_t *fmts); 58 u_int32_t snd_fmtbestchannel(u_int32_t fmt, u_int32_t *fmts); 59 u_int32_t snd_fmtbest(u_int32_t fmt, u_int32_t *fmts); 60 61 int feeder_add(struct pcm_channel *c, struct feeder_class *fc, 62 struct pcm_feederdesc *desc); 63 void feeder_remove(struct pcm_channel *c); 64 struct pcm_feeder *feeder_find(struct pcm_channel *c, u_int32_t type); 65 void feeder_printchain(struct pcm_feeder *head); 66 int feeder_chain(struct pcm_channel *); 67 68 #define FEEDER_DECLARE(feeder, pdata) \ 69 static struct feeder_class feeder ## _class = { \ 70 .name = #feeder, \ 71 .methods = feeder ## _methods, \ 72 .size = sizeof(struct pcm_feeder), \ 73 .desc = feeder ## _desc, \ 74 .data = pdata, \ 75 }; \ 76 SYSINIT(feeder, SI_SUB_DRIVERS, SI_ORDER_ANY, feeder_register, \ 77 &feeder ## _class) 78 79 enum { 80 FEEDER_ROOT, 81 FEEDER_FORMAT, 82 FEEDER_MIXER, 83 FEEDER_RATE, 84 FEEDER_EQ, 85 FEEDER_VOLUME, 86 FEEDER_MATRIX, 87 FEEDER_LAST, 88 }; 89 90 /* feeder_format */ 91 enum { 92 FEEDFORMAT_CHANNELS 93 }; 94 95 /* feeder_mixer */ 96 enum { 97 FEEDMIXER_CHANNELS 98 }; 99 100 /* feeder_rate */ 101 enum { 102 FEEDRATE_SRC, 103 FEEDRATE_DST, 104 FEEDRATE_QUALITY, 105 FEEDRATE_CHANNELS 106 }; 107 108 #define FEEDRATE_RATEMIN 1 109 #define FEEDRATE_RATEMAX 2016000 /* 48000 * 42 */ 110 #define FEEDRATE_MIN 1 111 #define FEEDRATE_MAX 0x7fffff /* sign 24bit ~ 8ghz ! */ 112 #define FEEDRATE_ROUNDHZ 25 113 #define FEEDRATE_ROUNDHZ_MIN 0 114 #define FEEDRATE_ROUNDHZ_MAX 500 115 116 extern int feeder_rate_min; 117 extern int feeder_rate_max; 118 extern int feeder_rate_round; 119 extern int feeder_rate_quality; 120 121 /* feeder_eq */ 122 enum { 123 FEEDEQ_CHANNELS, 124 FEEDEQ_RATE, 125 FEEDEQ_TREBLE, 126 FEEDEQ_BASS, 127 FEEDEQ_PREAMP, 128 FEEDEQ_STATE, 129 FEEDEQ_DISABLE, 130 FEEDEQ_ENABLE, 131 FEEDEQ_BYPASS, 132 FEEDEQ_UNKNOWN 133 }; 134 135 int feeder_eq_validrate(uint32_t); 136 void feeder_eq_initsys(device_t); 137 138 /* feeder_volume */ 139 enum { 140 FEEDVOLUME_CLASS, 141 FEEDVOLUME_CHANNELS, 142 FEEDVOLUME_STATE, 143 FEEDVOLUME_ENABLE, 144 FEEDVOLUME_BYPASS 145 }; 146 147 int feeder_volume_apply_matrix(struct pcm_feeder *, struct pcmchan_matrix *); 148 149 /* feeder_matrix */ 150 int feeder_matrix_default_id(uint32_t); 151 struct pcmchan_matrix *feeder_matrix_default_channel_map(uint32_t); 152 153 uint32_t feeder_matrix_default_format(uint32_t); 154 155 int feeder_matrix_format_id(uint32_t); 156 struct pcmchan_matrix *feeder_matrix_format_map(uint32_t); 157 158 struct pcmchan_matrix *feeder_matrix_id_map(int); 159 160 int feeder_matrix_setup(struct pcm_feeder *, struct pcmchan_matrix *, 161 struct pcmchan_matrix *); 162 int feeder_matrix_compare(struct pcmchan_matrix *, struct pcmchan_matrix *); 163 164 /* feeder_format */ 165 typedef intpcm_t intpcm_read_t(uint8_t *); 166 typedef void intpcm_write_t(uint8_t *, intpcm_t); 167 168 intpcm_read_t *feeder_format_read_op(uint32_t); 169 intpcm_write_t *feeder_format_write_op(uint32_t); 170 171 /* 4Front OSS stuffs */ 172 int feeder_matrix_oss_get_channel_order(struct pcmchan_matrix *, 173 unsigned long long *); 174 int feeder_matrix_oss_set_channel_order(struct pcmchan_matrix *, 175 unsigned long long *); 176 177 /* 178 * By default, various feeders only deal with sign 16/32 bit native-endian 179 * since it should provide the fastest processing path. Processing 8bit samples 180 * is too noisy due to limited dynamic range, while 24bit is quite slow due to 181 * unnatural per-byte read/write. However, for debugging purposes, ensuring 182 * implementation correctness and torture test, the following can be defined: 183 * 184 * SND_FEEDER_MULTIFORMAT - Compile all type of converters, but force 185 * 8bit samples to be converted to 16bit 186 * native-endian for better dynamic range. 187 * Process 24bit samples natively. 188 * SND_FEEDER_FULL_MULTIFORMAT - Ditto, but process 8bit samples natively. 189 */ 190 #ifdef SND_FEEDER_FULL_MULTIFORMAT 191 #undef SND_FEEDER_MULTIFORMAT 192 #define SND_FEEDER_MULTIFORMAT 1 193 #endif 194