[2131] | 1 | //driver_oss.c: |
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| 2 | |
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| 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2009 |
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| 5 | * |
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| 6 | * This file is part of roarclients a part of RoarAudio, |
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| 7 | * a cross-platform sound system for both, home and professional use. |
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| 8 | * See README for details. |
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| 9 | * |
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| 10 | * This file is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU General Public License version 3 |
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| 12 | * as published by the Free Software Foundation. |
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| 13 | * |
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| 14 | * RoarAudio is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | * GNU General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with this software; see the file COPYING. If not, write to |
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| 21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 22 | * |
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| 23 | */ |
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| 24 | |
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| 25 | #include <roaraudio.h> |
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| 26 | #include "driver.h" |
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| 27 | |
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[2132] | 28 | #if defined(ROAR_HAVE_OSS_BSD) || defined(ROAR_HAVE_OSS) |
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| 29 | |
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| 30 | #if defined(__OpenBSD__) || defined(__NetBSD__) |
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| 31 | #include <soundcard.h> |
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| 32 | #else |
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| 33 | #include <sys/soundcard.h> |
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| 34 | #endif |
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| 35 | #include <sys/ioctl.h> |
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| 36 | |
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| 37 | #define _err() roar_vio_close(calls); return -1 |
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| 38 | |
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[2131] | 39 | int roar_cdriver_oss(struct roar_vio_calls * calls, char * name, char * dev, struct roar_audio_info * info, int dir) { |
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[2132] | 40 | int fh; |
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| 41 | int tmp, ctmp; |
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| 42 | |
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| 43 | if ( dev == NULL ) |
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| 44 | dev = ROAR_DEFAULT_OSS_DEV; |
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| 45 | |
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| 46 | if ( dev == NULL ) |
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| 47 | return -1; |
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| 48 | |
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| 49 | if ( roar_vio_open_file(calls, dev, O_RDWR, 0644) == -1 ) |
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| 50 | return -1; |
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| 51 | |
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| 52 | if ( roar_vio_ctl(calls, ROAR_VIO_CTL_GET_FH, &fh) == -1 ) { |
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| 53 | _err(); |
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| 54 | } |
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| 55 | |
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| 56 | // channels: |
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| 57 | #ifdef SNDCTL_DSP_CHANNELS |
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| 58 | tmp = info->channels; |
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| 59 | |
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| 60 | if ( ioctl(fh, SNDCTL_DSP_CHANNELS, &tmp) == -1 ) { |
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| 61 | _err(); |
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| 62 | } |
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| 63 | |
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| 64 | if ( tmp != info->channels ) { |
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| 65 | _err(); |
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| 66 | } |
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| 67 | #else |
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| 68 | switch (info->channels) { |
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| 69 | case 1: tmp = 0; break; |
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| 70 | case 2: tmp = 1; break; |
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| 71 | default: _err(); |
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| 72 | } |
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| 73 | |
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| 74 | if ( ioctl(fh, SNDCTL_DSP_STEREO, &tmp) == -1 ) { |
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| 75 | _err(); |
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| 76 | } |
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| 77 | #endif |
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| 78 | |
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| 79 | // codec/bits: |
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| 80 | if ( info->codec != ROAR_CODEC_ALAW && info->codec != ROAR_CODEC_MULAW && info->bits != 16 ) { |
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| 81 | // other modes are currently not supported |
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| 82 | _err(); |
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| 83 | } |
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| 84 | |
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| 85 | switch (info->codec) { |
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| 86 | case ROAR_CODEC_PCM_S_LE: |
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| 87 | tmp = AFMT_S16_LE; |
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| 88 | case ROAR_CODEC_PCM_S_BE: |
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| 89 | tmp = AFMT_S16_BE; |
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| 90 | case ROAR_CODEC_PCM_U_LE: |
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| 91 | tmp = AFMT_U16_LE; |
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| 92 | case ROAR_CODEC_PCM_U_BE: |
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| 93 | tmp = AFMT_U16_BE; |
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| 94 | break; |
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| 95 | case ROAR_CODEC_ALAW: |
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| 96 | tmp = AFMT_A_LAW; |
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| 97 | break; |
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| 98 | case ROAR_CODEC_MULAW: |
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| 99 | tmp = AFMT_MU_LAW; |
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| 100 | break; |
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| 101 | } |
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| 102 | |
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| 103 | ctmp = tmp; |
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| 104 | #ifdef SNDCTL_DSP_SETFMT |
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| 105 | if ( ioctl(fh, SNDCTL_DSP_SETFMT, &tmp) == -1 ) { |
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| 106 | #else |
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| 107 | if ( ioctl(fh, SNDCTL_DSP_SAMPLESIZE, &tmp) == -1 ) { |
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| 108 | #endif |
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| 109 | _err(); |
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| 110 | } |
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| 111 | |
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| 112 | if ( tmp != ctmp ) { |
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| 113 | _err(); |
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| 114 | } |
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| 115 | |
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| 116 | // rate: |
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| 117 | tmp = info->rate; |
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| 118 | |
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| 119 | if ( ioctl(fh, SNDCTL_DSP_SPEED, &tmp) == -1 ) { |
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| 120 | _err(); |
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| 121 | } |
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| 122 | |
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| 123 | if ( tmp != info->rate ) { |
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| 124 | _err(); |
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| 125 | } |
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| 126 | |
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| 127 | return 0; |
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[2131] | 128 | } |
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| 129 | |
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[2132] | 130 | #endif |
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| 131 | |
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[2131] | 132 | //ll |
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