[916] | 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 - 2008 |
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| 5 | * |
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| 6 | * This file is part of roard 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 "roard.h" |
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| 26 | #if defined(ROAR_HAVE_OSS_BSD) || defined(ROAR_HAVE_OSS) |
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| 27 | |
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[919] | 28 | #define er() close(fh); return -1 |
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| 29 | |
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[930] | 30 | int driver_oss_open(struct roar_vio_calls * inst, char * device, struct roar_audio_info * info, int fh) { |
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[919] | 31 | int tmp; |
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[942] | 32 | int ctmp; |
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| 33 | char * es; |
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[1222] | 34 | uint32_t tmp32; |
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[919] | 35 | |
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[924] | 36 | #ifdef ROAR_DEFAULT_OSS_DEV |
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[919] | 37 | if ( device == NULL ) |
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| 38 | device = ROAR_DEFAULT_OSS_DEV; |
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[924] | 39 | #endif |
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| 40 | |
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| 41 | if ( device == NULL ) { |
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| 42 | ROAR_ERR("driver_oss_open(*): no default device found, you need to specify one manuelly"); |
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| 43 | return -1; |
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| 44 | } |
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[919] | 45 | |
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| 46 | roar_vio_init_calls(inst); |
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[1138] | 47 | inst->sync = driver_oss_sync; |
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[1151] | 48 | inst->ctl = driver_oss_ctl; |
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[919] | 49 | |
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[930] | 50 | if ( fh == -1 ) { |
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| 51 | if ( (fh = open(device, O_WRONLY, 0644)) == -1 ) { |
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| 52 | ROAR_ERR("driver_oss_open(*): Can not open OSS device: %s: %s", device, strerror(errno)); |
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| 53 | return -1; |
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| 54 | } |
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[919] | 55 | } |
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| 56 | |
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| 57 | roar_vio_set_fh(inst, fh); |
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| 58 | |
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[945] | 59 | |
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| 60 | |
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| 61 | #ifdef SNDCTL_DSP_CHANNELS |
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| 62 | tmp = info->channels; |
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| 63 | |
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| 64 | if ( ioctl(fh, SNDCTL_DSP_CHANNELS, &tmp) == -1 ) { |
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| 65 | ROAR_ERR("driver_oss_open(*): can not set number of channels"); |
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| 66 | er(); |
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| 67 | } |
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| 68 | |
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| 69 | if ( tmp != info->channels ) { |
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| 70 | ROAR_ERR("driver_oss_open(*): can not set requested numer of channels, OSS suggested %i channels, to use this restart with -oO channels=%i or set codec manuelly via -oO channels=num", tmp, tmp); |
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| 71 | er(); |
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| 72 | } |
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| 73 | #else |
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[919] | 74 | switch (info->channels) { |
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| 75 | case 1: tmp = 0; break; |
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| 76 | case 2: tmp = 1; break; |
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| 77 | default: er(); |
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| 78 | } |
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| 79 | |
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| 80 | if ( ioctl(fh, SNDCTL_DSP_STEREO, &tmp) == -1 ) { |
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[945] | 81 | ROAR_ERR("driver_oss_open(*): can not set number of channels"); |
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[919] | 82 | er(); |
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| 83 | } |
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[945] | 84 | #endif |
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[919] | 85 | |
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[942] | 86 | switch (info->codec) { |
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| 87 | case ROAR_CODEC_PCM_S_LE: |
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| 88 | switch (info->bits) { |
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| 89 | case 8: tmp = AFMT_S8; break; |
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| 90 | case 16: tmp = AFMT_S16_LE; break; |
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| 91 | // case 24: tmp = AFMT_S24_PACKED; break; |
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| 92 | #ifdef AFMT_S32_LE |
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| 93 | case 32: tmp = AFMT_S32_LE; break; |
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| 94 | #endif |
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| 95 | default: er(); |
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| 96 | } |
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| 97 | break; |
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| 98 | case ROAR_CODEC_PCM_S_BE: |
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| 99 | switch (info->bits) { |
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| 100 | case 8: tmp = AFMT_S8; break; |
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| 101 | case 16: tmp = AFMT_S16_BE; break; |
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| 102 | // case 24: tmp = AFMT_S24_PACKED; break; |
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| 103 | #ifdef AFMT_S32_BE |
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| 104 | case 32: tmp = AFMT_S32_BE; break; |
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| 105 | #endif |
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| 106 | default: er(); |
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| 107 | } |
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| 108 | break; |
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| 109 | case ROAR_CODEC_PCM_U_LE: |
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| 110 | switch (info->bits) { |
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| 111 | case 8: tmp = AFMT_U8; break; |
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| 112 | case 16: tmp = AFMT_U16_LE; break; |
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| 113 | default: er(); |
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[919] | 114 | } |
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| 115 | break; |
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[942] | 116 | case ROAR_CODEC_PCM_U_BE: |
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| 117 | switch (info->bits) { |
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| 118 | case 8: tmp = AFMT_U8; break; |
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| 119 | case 16: tmp = AFMT_U16_BE; break; |
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| 120 | default: er(); |
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| 121 | } |
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| 122 | case ROAR_CODEC_ALAW: |
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| 123 | tmp = AFMT_A_LAW; |
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| 124 | break; |
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| 125 | case ROAR_CODEC_MULAW: |
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| 126 | tmp = AFMT_MU_LAW; |
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| 127 | break; |
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| 128 | #ifdef AFMT_VORBIS |
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| 129 | case ROAR_CODEC_OGG_VORBIS: |
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| 130 | tmp = AFMT_VORBIS; |
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| 131 | break; |
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| 132 | #endif |
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| 133 | default: |
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| 134 | er(); |
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| 135 | break; |
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| 136 | } |
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| 137 | |
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| 138 | ctmp = tmp; |
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[946] | 139 | #ifdef SNDCTL_DSP_SETFMT |
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| 140 | if ( ioctl(fh, SNDCTL_DSP_SETFMT, &tmp) == -1 ) { |
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| 141 | #else |
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[942] | 142 | if ( ioctl(fh, SNDCTL_DSP_SAMPLESIZE, &tmp) == -1 ) { |
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[946] | 143 | #endif |
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[942] | 144 | ROAR_ERR("driver_oss_open(*): can not set sample format"); |
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| 145 | er(); |
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[919] | 146 | } |
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| 147 | |
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[942] | 148 | if ( tmp != ctmp ) { |
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| 149 | es = NULL; |
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| 150 | switch (tmp) { |
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| 151 | case AFMT_S8 : es = "bits=8,codec=pcm"; break; |
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| 152 | case AFMT_U8 : es = "bits=8,codec=pcm_u_le"; break; |
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| 153 | case AFMT_S16_LE: es = "bits=16,codec=pcm_s_le"; break; |
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| 154 | case AFMT_S16_BE: es = "bits=16,codec=pcm_s_be"; break; |
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| 155 | case AFMT_U16_LE: es = "bits=16,codec=pcm_u_le"; break; |
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| 156 | case AFMT_U16_BE: es = "bits=16,codec=pcm_u_be"; break; |
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| 157 | #ifdef AFMT_S32_LE |
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| 158 | case AFMT_S32_LE: es = "bits=32,codec=pcm_s_le"; break; |
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| 159 | #endif |
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| 160 | #ifdef AFMT_S32_BE |
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| 161 | case AFMT_S32_BE: es = "bits=32,codec=pcm_s_be"; break; |
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| 162 | #endif |
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| 163 | case AFMT_A_LAW : es = "codec=alaw"; break; |
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| 164 | case AFMT_MU_LAW: es = "codec=mulaw"; break; |
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| 165 | #ifdef AFMT_VORBIS |
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| 166 | case AFMT_VORBIS: es = "codec=ogg_vorbis"; break; |
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| 167 | #endif |
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| 168 | } |
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| 169 | |
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| 170 | if ( es != NULL ) { |
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[1138] | 171 | ROAR_ERR("driver_oss_open(*): can not set requested codec, OSS retruned another codec than requested, to use this restart with -oO %s or set codec manuelly via -oO codec=somecodec", es); |
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[942] | 172 | } else { |
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| 173 | ROAR_ERR("driver_oss_open(*): can not set requested codec, set codec manuelly via -oO codec=somecodec"); |
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| 174 | } |
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[919] | 175 | er(); |
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| 176 | } |
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| 177 | |
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| 178 | tmp = info->rate; |
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| 179 | |
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| 180 | if ( ioctl(fh, SNDCTL_DSP_SPEED, &tmp) == -1 ) { |
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[942] | 181 | ROAR_ERR("driver_oss_open(*): can not set sample rate"); |
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[919] | 182 | er(); |
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| 183 | } |
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| 184 | |
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| 185 | if ( tmp < info->rate * 0.98 || tmp > info->rate * 1.02 ) { |
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[942] | 186 | ROAR_ERR("driver_oss_open(*): sample rate out of acceptable accuracy"); |
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[919] | 187 | er(); |
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| 188 | } |
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| 189 | |
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[1209] | 190 | |
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[1222] | 191 | tmp32 = 4; |
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| 192 | driver_oss_ctl(inst, ROAR_VIO_CTL_SET_DBLOCKS, &tmp32); |
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[1209] | 193 | |
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[935] | 194 | ROAR_DBG("driver_oss_open(*): OSS devices opened :)"); |
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[934] | 195 | |
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[919] | 196 | return 0; |
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[917] | 197 | } |
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| 198 | |
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| 199 | int driver_oss_close(DRIVER_USERDATA_T inst) { |
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[1242] | 200 | return roar_vio_close((struct roar_vio_calls *)inst); |
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[917] | 201 | } |
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| 202 | |
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[1138] | 203 | int driver_oss_sync(struct roar_vio_calls * vio) { |
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| 204 | #ifdef SNDCTL_DSP_SYNC |
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| 205 | return ioctl(roar_vio_get_fh(vio), SNDCTL_DSP_SYNC, NULL); |
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| 206 | #else |
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| 207 | return 0; |
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| 208 | #endif |
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| 209 | } |
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[916] | 210 | |
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[1151] | 211 | int driver_oss_ctl(struct roar_vio_calls * vio, int cmd, void * data) { |
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| 212 | int d; |
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| 213 | |
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| 214 | if ( vio == NULL ) |
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| 215 | return -1; |
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| 216 | |
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[1222] | 217 | switch (cmd) { |
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| 218 | case ROAR_VIO_CTL_GET_DELAY: |
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| 219 | #ifdef SNDCTL_DSP_GETODELAY |
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| 220 | if ( ioctl(roar_vio_get_fh(vio), SNDCTL_DSP_GETODELAY, &d) == -1 ) |
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| 221 | return -1; |
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| 222 | |
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| 223 | ROAR_DBG("driver_oss_ctl(*): delay=%i byte", d); |
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[1151] | 224 | |
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[1222] | 225 | *(uint_least32_t *)data = d; |
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| 226 | #else |
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| 227 | return -1; |
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| 228 | #endif |
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| 229 | break; |
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| 230 | case ROAR_VIO_CTL_SET_DBLOCKS: |
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| 231 | #ifdef SNDCTL_DSP_SETFRAGMENT |
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| 232 | d = (*(uint_least32_t *)data) << 16 | 11; // (*data) fragements of 2048 Bytes. |
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| 233 | if ( ioctl(roar_vio_get_fh(vio), SNDCTL_DSP_SETFRAGMENT, &d) == -1 ) { |
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| 234 | ROAR_WARN("driver_oss_ctl(*): Can not set fragment size, sorry :("); |
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| 235 | } |
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| 236 | #else |
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| 237 | return -1; |
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| 238 | #endif |
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| 239 | break; |
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| 240 | case ROAR_VIO_CTL_GET_DBLKSIZE: |
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| 241 | *(uint_least32_t *)data = 2048; |
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| 242 | return 0; |
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| 243 | break; |
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| 244 | default: |
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| 245 | return -1; |
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| 246 | } |
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[1151] | 247 | |
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| 248 | return 0; |
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| 249 | } |
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| 250 | |
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[916] | 251 | #endif |
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| 252 | //ll |
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