| 1 | /*
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| 2 | * Copyright (c) 2014 Jiri Svoboda
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup hdaudio
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| 30 | * @{
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| 31 | */
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| 32 | /** @file High Definition Audio stream format
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| 33 | */
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| 34 |
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| 35 | #ifndef SPEC_FMT_H
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| 36 | #define SPEC_FMT_H
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| 37 |
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| 38 | typedef enum {
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| 39 | /** Stream Type */
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| 40 | fmt_type = 15,
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| 41 | /** Sample Base Rate */
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| 42 | fmt_base = 14,
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| 43 | /** Sample Base Rate Multiple (H) */
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| 44 | fmt_mult_h = 13,
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| 45 | /** Sample Base Rate Multiple (L) */
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| 46 | fmt_mult_l = 11,
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| 47 | /** Sample Base Rate Divisor (H) */
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| 48 | fmt_div_h = 10,
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| 49 | /** Sample Base Rate Divisor (L) */
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| 50 | fmt_div_l = 8,
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| 51 | /** Bits per Sample (H) */
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| 52 | fmt_bits_h = 6,
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| 53 | /** Bits per Sample (L) */
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| 54 | fmt_bits_l = 4,
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| 55 | /** Number of Channels (H) */
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| 56 | fmt_chan_h = 3,
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| 57 | /** Number of Channels (L) */
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| 58 | fmt_chan_l = 0
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| 59 | } hda_stream_fmt_bits_t;
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| 60 |
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| 61 | /** Stream Type */
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| 62 | typedef enum {
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| 63 | /** PCM */
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| 64 | fmt_type_pcm = 0,
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| 65 | /** Non-PCM */
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| 66 | fmt_type_nonpcm = 1
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| 67 | } hda_fmt_type_t;
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| 68 |
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| 69 | /** Sample Base Rate */
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| 70 | typedef enum {
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| 71 | /** 48 kHz */
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| 72 | fmt_base_48khz = 0,
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| 73 | /** 44.1 kHz */
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| 74 | fmt_base_44khz = 1
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| 75 | } hda_fmt_base_t;
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| 76 |
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| 77 | /** Sample Base Rate Multiple */
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| 78 | typedef enum {
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| 79 | /** 48 kHz/44.1 kHz or less */
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| 80 | fmt_mult_x1 = 0,
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| 81 | /** x2 (96 kHz, 88.2 kHz, 32 kHz) */
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| 82 | fmt_mult_x2 = 1,
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| 83 | /** x3 (144 kHz) */
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| 84 | fmt_mult_x3 = 2,
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| 85 | /** x4 (192 kHz, 176.4 kHz) */
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| 86 | fmt_mult_x4 = 3
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| 87 | } hda_fmt_mult_t;
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| 88 |
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| 89 | /** Sample Base Rate Divisor */
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| 90 | typedef enum {
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| 91 | /** Divide by 1 (48 kHz, 44.1 kHz) */
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| 92 | fmt_div_1 = 0,
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| 93 | /** Divide by 2 (24 kHz, 22.05 kHz) */
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| 94 | fmt_div_2 = 1,
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| 95 | /** Divide by 3 (16 kHz, 32 kHz) */
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| 96 | fmt_div_3 = 2,
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| 97 | /** Divide by 4 (11.025 kHz) */
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| 98 | fmt_div_4 = 3,
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| 99 | /** Divide by 5 (9.6 kHz) */
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| 100 | fmt_div_5 = 4,
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| 101 | /** Divide by 6 (8 kHz) */
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| 102 | fmt_div_6 = 5,
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| 103 | /** Divide by 7 */
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| 104 | fmt_div_7 = 6,
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| 105 | /** Divide by 8 (6 kHz) */
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| 106 | fmt_div_8 = 7
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| 107 | } hda_fmt_div_t;
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| 108 |
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| 109 | /** Bits per Sample */
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| 110 | typedef enum {
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| 111 | /** 8 bits */
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| 112 | fmt_bits_8 = 0,
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| 113 | /** 16 bits */
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| 114 | fmt_bits_16 = 1,
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| 115 | /** 20 bits */
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| 116 | fmt_bits_20 = 2,
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| 117 | /** 24 bits */
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| 118 | fmt_bits_24 = 3,
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| 119 | /** 32 bits */
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| 120 | fmt_bits_32 = 4
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| 121 | } hda_fmt_bits_t;
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| 122 |
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| 123 | /** Number of Channels */
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| 124 | typedef enum {
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| 125 | fmt_chan_1 = 0,
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| 126 | fmt_chan_2 = 1,
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| 127 | fmt_chan_3 = 2,
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| 128 | fmt_chan_4 = 3,
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| 129 | fmt_chan_5 = 4,
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| 130 | fmt_chan_6 = 5,
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| 131 | fmt_chan_7 = 6,
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| 132 | fmt_chan_8 = 7,
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| 133 | fmt_chan_9 = 8,
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| 134 | fmt_chan_10 = 9,
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| 135 | fmt_chan_11 = 10,
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| 136 | fmt_chan_12 = 11,
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| 137 | fmt_chan_13 = 12,
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| 138 | fmt_chan_14 = 13,
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| 139 | fmt_chan_15 = 14,
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| 140 | fmt_chan_16 = 15
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| 141 | } hda_fmt_chan_t;
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| 142 |
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| 143 | #endif
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| 144 |
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| 145 | /** @}
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| 146 | */
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