sys/dev/sound/pcm/intpcm.h

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2008-2009 Ariff Abdullah <ariff@FreeBSD.org>
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  *
  28  * $FreeBSD$
  29  */
  30
  31 #ifndef _SND_INTPCM_H_
  32 #define _SND_INTPCM_H_
  33
  34 typedef intpcm_t intpcm_read_t(uint8_t *);
  35 typedef void intpcm_write_t(uint8_t *, intpcm_t);
  36
  37 extern intpcm_read_t *feeder_format_read_op(uint32_t);
  38 extern intpcm_write_t *feeder_format_write_op(uint32_t);
  39
  40 #define INTPCM_DECLARE_OP_WRITE(SIGN, BIT, ENDIAN, SHIFT)               \
  41 static __inline void                                                    \
  42 intpcm_write_##SIGN##BIT##ENDIAN(uint8_t *dst, intpcm_t v)              \
  43 {                                                                       \
  44                                                                         \
  45         _PCM_WRITE_##SIGN##BIT##_##ENDIAN(dst, v >> SHIFT);             \
  46 }
  47
  48 #define INTPCM_DECLARE_OP_8(SIGN, ENDIAN)                               \
  49 static __inline intpcm_t                                                \
  50 intpcm_read_##SIGN##8##ENDIAN(uint8_t *src)                             \
  51 {                                                                       \
  52                                                                         \
  53         return (_PCM_READ_##SIGN##8##_##ENDIAN(src) << 24);             \
  54 }                                                                       \
  55 INTPCM_DECLARE_OP_WRITE(SIGN, 8, ENDIAN, 24)
  56
  57 #define INTPCM_DECLARE_OP_16(SIGN, ENDIAN)                              \
  58 static __inline intpcm_t                                                \
  59 intpcm_read_##SIGN##16##ENDIAN(uint8_t *src)                            \
  60 {                                                                       \
  61                                                                         \
  62         return (_PCM_READ_##SIGN##16##_##ENDIAN(src) << 16);            \
  63 }                                                                       \
  64 INTPCM_DECLARE_OP_WRITE(SIGN, 16, ENDIAN, 16)
  65
  66 #define INTPCM_DECLARE_OP_24(SIGN, ENDIAN)                              \
  67 static __inline intpcm_t                                                \
  68 intpcm_read_##SIGN##24##ENDIAN(uint8_t *src)                            \
  69 {                                                                       \
  70                                                                         \
  71         return (_PCM_READ_##SIGN##24##_##ENDIAN(src) << 8);             \
  72 }                                                                       \
  73 INTPCM_DECLARE_OP_WRITE(SIGN, 24, ENDIAN, 8)
  74
  75 #define INTPCM_DECLARE_OP_32(SIGN, ENDIAN)                              \
  76 static __inline intpcm_t                                                \
  77 intpcm_read_##SIGN##32##ENDIAN(uint8_t *src)                            \
  78 {                                                                       \
  79                                                                         \
  80         return (_PCM_READ_##SIGN##32##_##ENDIAN(src));                  \
  81 }                                                                       \
  82                                                                         \
  83 static __inline void                                                    \
  84 intpcm_write_##SIGN##32##ENDIAN(uint8_t *dst, intpcm_t v)               \
  85 {                                                                       \
  86                                                                         \
  87         _PCM_WRITE_##SIGN##32##_##ENDIAN(dst, v);                       \
  88 }
  89
  90
  91 #define INTPCM_DECLARE(t)                                               \
  92                                                                         \
  93 G711_DECLARE_TABLE(t);                                                  \
  94                                                                         \
  95 static __inline intpcm_t                                                \
  96 intpcm_read_ulaw(uint8_t *src)                                          \
  97 {                                                                       \
  98                                                                         \
  99         return (_G711_TO_INTPCM((t).ulaw_to_u8, *src) << 24);           \
 100 }                                                                       \
 101                                                                         \
 102 static __inline intpcm_t                                                \
 103 intpcm_read_alaw(uint8_t *src)                                          \
 104 {                                                                       \
 105                                                                         \
 106         return (_G711_TO_INTPCM((t).alaw_to_u8, *src) << 24);           \
 107 }                                                                       \
 108                                                                         \
 109 static __inline void                                                    \
 110 intpcm_write_ulaw(uint8_t *dst, intpcm_t v)                             \
 111 {                                                                       \
 112                                                                         \
 113         *dst = _INTPCM_TO_G711((t).u8_to_ulaw, v >> 24);                \
 114 }                                                                       \
 115                                                                         \
 116 static __inline void                                                    \
 117 intpcm_write_alaw(uint8_t *dst, intpcm_t v)                             \
 118 {                                                                       \
 119                                                                         \
 120         *dst = _INTPCM_TO_G711((t).u8_to_alaw, v >> 24);                \
 121 }                                                                       \
 122                                                                         \
 123 INTPCM_DECLARE_OP_8(S, NE)                                              \
 124 INTPCM_DECLARE_OP_16(S, LE)                                             \
 125 INTPCM_DECLARE_OP_16(S, BE)                                             \
 126 INTPCM_DECLARE_OP_24(S, LE)                                             \
 127 INTPCM_DECLARE_OP_24(S, BE)                                             \
 128 INTPCM_DECLARE_OP_32(S, LE)                                             \
 129 INTPCM_DECLARE_OP_32(S, BE)                                             \
 130 INTPCM_DECLARE_OP_8(U,  NE)                                             \
 131 INTPCM_DECLARE_OP_16(U, LE)                                             \
 132 INTPCM_DECLARE_OP_16(U, BE)                                             \
 133 INTPCM_DECLARE_OP_24(U, LE)                                             \
 134 INTPCM_DECLARE_OP_24(U, BE)                                             \
 135 INTPCM_DECLARE_OP_32(U, LE)                                             \
 136 INTPCM_DECLARE_OP_32(U, BE)
 137
 138 #endif  /* !_SND_INTPCM_H_ */