1 /*- 2 * Copyright (c) 2005-2009 Ariff Abdullah <ariff@FreeBSD.org> 3 * Copyright (c) 1999 Cameron Grant <cg@FreeBSD.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 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 chn_addfeeder(struct pcm_channel *c, struct feeder_class *fc, 62 struct pcm_feederdesc *desc); 63 int chn_removefeeder(struct pcm_channel *c); 64 struct pcm_feeder *chn_findfeeder(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 /* 4Front OSS stuffs */ 165 int feeder_matrix_oss_get_channel_order(struct pcmchan_matrix *, 166 unsigned long long *); 167 int feeder_matrix_oss_set_channel_order(struct pcmchan_matrix *, 168 unsigned long long *); 169 170 #if 0 171 /* feeder_matrix */ 172 enum { 173 FEEDMATRIX_TYPE, 174 FEEDMATRIX_RESET, 175 FEEDMATRIX_CHANNELS_IN, 176 FEEDMATRIX_CHANNELS_OUT, 177 FEEDMATRIX_SET_MAP 178 }; 179 180 enum { 181 FEEDMATRIX_TYPE_NONE, 182 FEEDMATRIX_TYPE_AUTO, 183 FEEDMATRIX_TYPE_2X1, 184 FEEDMATRIX_TYPE_1X2, 185 FEEDMATRIX_TYPE_2X2 186 }; 187 188 #define FEEDMATRIX_TYPE_STEREO_TO_MONO FEEDMATRIX_TYPE_2X1 189 #define FEEDMATRIX_TYPE_MONO_TO_STEREO FEEDMATRIX_TYPE_1X2 190 #define FEEDMATRIX_TYPE_SWAP_STEREO FEEDMATRIX_TYPE_2X2 191 #define FEEDMATRIX_MAP(x, y) ((((x) & 0x3f) << 6) | ((y) & 0x3f)) 192 #define FEEDMATRIX_MAP_SRC(x) ((x) & 0x3f) 193 #define FEEDMATRIX_MAP_DST(x) (((x) >> 6) & 0x3f) 194 #endif 195 196 /* 197 * By default, various feeders only deal with sign 16/32 bit native-endian 198 * since it should provide the fastest processing path. Processing 8bit samples 199 * is too noisy due to limited dynamic range, while 24bit is quite slow due to 200 * unnatural per-byte read/write. However, for debugging purposes, ensuring 201 * implementation correctness and torture test, the following can be defined: 202 * 203 * SND_FEEDER_MULTIFORMAT - Compile all type of converters, but force 204 * 8bit samples to be converted to 16bit 205 * native-endian for better dynamic range. 206 * Process 24bit samples natively. 207 * SND_FEEDER_FULL_MULTIFORMAT - Ditto, but process 8bit samples natively. 208 */ 209 #ifdef SND_FEEDER_FULL_MULTIFORMAT 210 #undef SND_FEEDER_MULTIFORMAT 211 #define SND_FEEDER_MULTIFORMAT 1 212 #endif 213