[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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[1518] | 28 | struct driver_oss { |
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| 29 | char * device; |
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| 30 | int fh; |
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| 31 | int blocks; |
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| 32 | int blocksize; |
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| 33 | struct roar_audio_info info; |
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[1521] | 34 | int need_reopen; |
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| 35 | int need_config; |
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[1527] | 36 | struct roar_stream_server * stream; |
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[1530] | 37 | int ssid; |
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[1518] | 38 | }; |
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| 39 | |
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| 40 | #define _get(vio,obj) (((struct driver_oss*)((vio)->inst))->obj) |
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| 41 | |
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| 42 | ssize_t driver_oss_write (struct roar_vio_calls * vio, void *buf, size_t count); |
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| 43 | int driver_oss_nonblock (struct roar_vio_calls * vio, int state); |
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| 44 | int driver_oss_close_vio(struct roar_vio_calls * vio); |
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| 45 | |
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| 46 | int driver_oss_init_vio(struct roar_vio_calls * vio, struct driver_oss * inst) { |
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| 47 | if ( vio == NULL ) |
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| 48 | return -1; |
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[919] | 49 | |
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[1518] | 50 | memset(vio, 0, sizeof(struct roar_vio_calls)); |
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| 51 | |
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| 52 | vio->write = driver_oss_write; |
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| 53 | vio->nonblock = driver_oss_nonblock; |
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| 54 | vio->sync = driver_oss_sync; |
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| 55 | vio->ctl = driver_oss_ctl; |
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| 56 | vio->close = driver_oss_close_vio; |
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| 57 | |
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| 58 | vio->inst = (void*) inst; |
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| 59 | |
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| 60 | return 0; |
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| 61 | } |
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| 62 | |
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| 63 | int driver_oss_open_device(struct driver_oss * self) { |
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| 64 | int fh = self->fh; |
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| 65 | char * device = self->device; |
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| 66 | |
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| 67 | if ( fh != -1 ) |
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| 68 | return 0; |
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[919] | 69 | |
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[924] | 70 | #ifdef ROAR_DEFAULT_OSS_DEV |
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[919] | 71 | if ( device == NULL ) |
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| 72 | device = ROAR_DEFAULT_OSS_DEV; |
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[924] | 73 | #endif |
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| 74 | |
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| 75 | if ( device == NULL ) { |
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[1518] | 76 | ROAR_ERR("driver_oss_open_device(*): no default device found, you need to specify one manuelly"); |
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| 77 | return -1; |
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| 78 | } |
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| 79 | |
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| 80 | if ( (fh = open(device, O_WRONLY, 0644)) == -1 ) { |
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| 81 | ROAR_ERR("driver_oss_open_device(*): Can not open OSS device: %s: %s", device, strerror(errno)); |
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[924] | 82 | return -1; |
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| 83 | } |
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[919] | 84 | |
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[1526] | 85 | self->fh = fh; |
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| 86 | self->need_config = 1; |
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[1518] | 87 | |
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| 88 | return 0; |
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| 89 | } |
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[919] | 90 | |
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[1518] | 91 | int driver_oss_config_device(struct driver_oss * self) { |
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| 92 | int fh = self->fh; |
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| 93 | struct roar_audio_info * info = &(self->info); |
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| 94 | int tmp, ctmp; |
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| 95 | char * es; |
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[919] | 96 | |
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[1518] | 97 | if ( fh == -1 ) |
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| 98 | return -1; |
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[945] | 99 | |
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| 100 | #ifdef SNDCTL_DSP_CHANNELS |
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| 101 | tmp = info->channels; |
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| 102 | |
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| 103 | if ( ioctl(fh, SNDCTL_DSP_CHANNELS, &tmp) == -1 ) { |
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| 104 | ROAR_ERR("driver_oss_open(*): can not set number of channels"); |
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[1518] | 105 | return -1; |
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[945] | 106 | } |
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| 107 | |
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| 108 | if ( tmp != info->channels ) { |
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| 109 | 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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[1518] | 110 | return -1; |
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[945] | 111 | } |
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| 112 | #else |
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[919] | 113 | switch (info->channels) { |
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| 114 | case 1: tmp = 0; break; |
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| 115 | case 2: tmp = 1; break; |
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[1518] | 116 | default: return -1; |
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[919] | 117 | } |
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| 118 | |
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| 119 | if ( ioctl(fh, SNDCTL_DSP_STEREO, &tmp) == -1 ) { |
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[945] | 120 | ROAR_ERR("driver_oss_open(*): can not set number of channels"); |
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[1518] | 121 | return -1; |
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[919] | 122 | } |
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[945] | 123 | #endif |
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[919] | 124 | |
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[942] | 125 | switch (info->codec) { |
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| 126 | case ROAR_CODEC_PCM_S_LE: |
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| 127 | switch (info->bits) { |
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| 128 | case 8: tmp = AFMT_S8; break; |
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| 129 | case 16: tmp = AFMT_S16_LE; break; |
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| 130 | // case 24: tmp = AFMT_S24_PACKED; break; |
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| 131 | #ifdef AFMT_S32_LE |
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| 132 | case 32: tmp = AFMT_S32_LE; break; |
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| 133 | #endif |
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[1518] | 134 | default: return -1; |
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[942] | 135 | } |
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| 136 | break; |
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| 137 | case ROAR_CODEC_PCM_S_BE: |
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| 138 | switch (info->bits) { |
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| 139 | case 8: tmp = AFMT_S8; break; |
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| 140 | case 16: tmp = AFMT_S16_BE; break; |
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| 141 | // case 24: tmp = AFMT_S24_PACKED; break; |
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| 142 | #ifdef AFMT_S32_BE |
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| 143 | case 32: tmp = AFMT_S32_BE; break; |
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| 144 | #endif |
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[1518] | 145 | default: return -1; |
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[942] | 146 | } |
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| 147 | break; |
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| 148 | case ROAR_CODEC_PCM_U_LE: |
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| 149 | switch (info->bits) { |
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| 150 | case 8: tmp = AFMT_U8; break; |
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| 151 | case 16: tmp = AFMT_U16_LE; break; |
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[1518] | 152 | default: return -1; |
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[919] | 153 | } |
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| 154 | break; |
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[942] | 155 | case ROAR_CODEC_PCM_U_BE: |
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| 156 | switch (info->bits) { |
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| 157 | case 8: tmp = AFMT_U8; break; |
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| 158 | case 16: tmp = AFMT_U16_BE; break; |
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[1518] | 159 | default: return -1; |
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[942] | 160 | } |
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| 161 | case ROAR_CODEC_ALAW: |
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| 162 | tmp = AFMT_A_LAW; |
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| 163 | break; |
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| 164 | case ROAR_CODEC_MULAW: |
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| 165 | tmp = AFMT_MU_LAW; |
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| 166 | break; |
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| 167 | #ifdef AFMT_VORBIS |
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| 168 | case ROAR_CODEC_OGG_VORBIS: |
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| 169 | tmp = AFMT_VORBIS; |
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| 170 | break; |
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| 171 | #endif |
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| 172 | default: |
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[1518] | 173 | return -1; |
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[942] | 174 | break; |
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| 175 | } |
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| 176 | |
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| 177 | ctmp = tmp; |
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[946] | 178 | #ifdef SNDCTL_DSP_SETFMT |
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| 179 | if ( ioctl(fh, SNDCTL_DSP_SETFMT, &tmp) == -1 ) { |
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| 180 | #else |
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[942] | 181 | if ( ioctl(fh, SNDCTL_DSP_SAMPLESIZE, &tmp) == -1 ) { |
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[946] | 182 | #endif |
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[942] | 183 | ROAR_ERR("driver_oss_open(*): can not set sample format"); |
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[1518] | 184 | return -1; |
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[919] | 185 | } |
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| 186 | |
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[942] | 187 | if ( tmp != ctmp ) { |
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| 188 | es = NULL; |
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| 189 | switch (tmp) { |
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| 190 | case AFMT_S8 : es = "bits=8,codec=pcm"; break; |
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| 191 | case AFMT_U8 : es = "bits=8,codec=pcm_u_le"; break; |
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| 192 | case AFMT_S16_LE: es = "bits=16,codec=pcm_s_le"; break; |
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| 193 | case AFMT_S16_BE: es = "bits=16,codec=pcm_s_be"; break; |
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| 194 | case AFMT_U16_LE: es = "bits=16,codec=pcm_u_le"; break; |
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| 195 | case AFMT_U16_BE: es = "bits=16,codec=pcm_u_be"; break; |
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| 196 | #ifdef AFMT_S32_LE |
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| 197 | case AFMT_S32_LE: es = "bits=32,codec=pcm_s_le"; break; |
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| 198 | #endif |
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| 199 | #ifdef AFMT_S32_BE |
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| 200 | case AFMT_S32_BE: es = "bits=32,codec=pcm_s_be"; break; |
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| 201 | #endif |
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| 202 | case AFMT_A_LAW : es = "codec=alaw"; break; |
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| 203 | case AFMT_MU_LAW: es = "codec=mulaw"; break; |
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| 204 | #ifdef AFMT_VORBIS |
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| 205 | case AFMT_VORBIS: es = "codec=ogg_vorbis"; break; |
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| 206 | #endif |
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| 207 | } |
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| 208 | |
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| 209 | if ( es != NULL ) { |
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[1138] | 210 | 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] | 211 | } else { |
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| 212 | ROAR_ERR("driver_oss_open(*): can not set requested codec, set codec manuelly via -oO codec=somecodec"); |
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| 213 | } |
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[1518] | 214 | return -1; |
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[919] | 215 | } |
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| 216 | |
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| 217 | tmp = info->rate; |
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| 218 | |
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| 219 | if ( ioctl(fh, SNDCTL_DSP_SPEED, &tmp) == -1 ) { |
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[942] | 220 | ROAR_ERR("driver_oss_open(*): can not set sample rate"); |
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[1518] | 221 | return -1; |
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[919] | 222 | } |
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| 223 | |
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[1530] | 224 | if ( tmp != info->rate ) { |
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| 225 | ROAR_WARN("driver_oss_config_device(*): Device does not support requested sample rate: req=%iHz, sug=%iHz", |
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| 226 | info->rate, tmp); |
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| 227 | |
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| 228 | if ( tmp < info->rate * 0.98 || tmp > info->rate * 1.02 ) { |
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| 229 | ROAR_ERR("driver_oss_open(*): sample rate out of acceptable accuracy"); |
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| 230 | return -1; |
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| 231 | } |
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[1518] | 232 | } |
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| 233 | |
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[1521] | 234 | // latency things: |
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| 235 | #ifdef SNDCTL_DSP_SETFRAGMENT |
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| 236 | |
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| 237 | // defaults |
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| 238 | if ( self->blocksize < 1 ) |
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| 239 | self->blocksize = 2048; |
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| 240 | if ( self->blocks < 1 ) |
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| 241 | self->blocks = 4; |
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| 242 | |
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[1523] | 243 | switch (self->blocksize) { |
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| 244 | case 1<< 4: tmp = 4; break; |
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| 245 | case 1<< 5: tmp = 5; break; |
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| 246 | case 1<< 6: tmp = 6; break; |
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| 247 | case 1<< 7: tmp = 7; break; |
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| 248 | case 1<< 8: tmp = 8; break; |
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| 249 | case 1<< 9: tmp = 9; break; |
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| 250 | case 1<<10: tmp = 10; break; |
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| 251 | case 1<<11: tmp = 11; break; |
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| 252 | case 1<<12: tmp = 12; break; |
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| 253 | case 1<<13: tmp = 13; break; |
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| 254 | case 1<<14: tmp = 14; break; |
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| 255 | case 1<<15: tmp = 15; break; |
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| 256 | case 1<<16: tmp = 16; break; |
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| 257 | default: tmp = 11; |
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| 258 | ROAR_WARN("driver_oss_config_device(*): blocksize of %i byte is not a valid value. trying 2KB", self->blocksize); |
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| 259 | break; |
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| 260 | } |
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| 261 | |
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[1524] | 262 | ROAR_DBG("driver_oss_config_device(*): blocksize=%i(N=%i), blocks=%i", self->blocksize, tmp, self->blocks); |
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[1521] | 263 | |
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| 264 | tmp |= self->blocks << 16; |
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| 265 | if ( ioctl(fh, SNDCTL_DSP_SETFRAGMENT, &tmp) == -1 ) { |
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| 266 | ROAR_WARN("driver_oss_ctl(*): Can not set fragment size, sorry :("); |
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| 267 | } |
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| 268 | #endif |
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| 269 | |
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| 270 | self->need_config = 0; |
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| 271 | |
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[1518] | 272 | return 0; |
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| 273 | } |
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| 274 | |
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| 275 | #define er() close(self->fh); if ( self->device ) free(self->device); free(self); return -1 |
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| 276 | int driver_oss_open(struct roar_vio_calls * inst, char * device, struct roar_audio_info * info, int fh) { |
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| 277 | struct driver_oss * self = NULL; |
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| 278 | |
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| 279 | if ( (self = malloc(sizeof(struct driver_oss))) == NULL ) { |
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| 280 | ROAR_ERR("driver_oss_open(*): Can not malloc() instance data: %s", strerror(errno)); |
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| 281 | return -1; |
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| 282 | } |
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| 283 | |
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| 284 | memset(self, 0, sizeof(struct driver_oss)); |
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| 285 | memcpy(&(self->info), info, sizeof(struct roar_audio_info)); |
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| 286 | |
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[1530] | 287 | self->ssid = -1; |
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| 288 | self->fh = fh; |
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[1518] | 289 | |
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| 290 | if ( device != NULL ) |
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| 291 | self->device = strdup(device); |
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| 292 | |
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| 293 | if ( driver_oss_init_vio(inst, self) == -1 ) { |
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| 294 | ROAR_ERR("driver_oss_open(*): Can not init vio interface"); |
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[919] | 295 | er(); |
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| 296 | } |
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| 297 | |
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[1518] | 298 | if ( driver_oss_open_device(self) == -1 ) { |
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| 299 | ROAR_ERR("driver_oss_open(*): Can not open audio device"); |
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| 300 | er(); |
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| 301 | } |
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| 302 | |
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[935] | 303 | ROAR_DBG("driver_oss_open(*): OSS devices opened :)"); |
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[934] | 304 | |
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[919] | 305 | return 0; |
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[917] | 306 | } |
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[1518] | 307 | #undef er |
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[917] | 308 | |
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| 309 | int driver_oss_close(DRIVER_USERDATA_T inst) { |
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[1242] | 310 | return roar_vio_close((struct roar_vio_calls *)inst); |
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[917] | 311 | } |
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| 312 | |
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[1518] | 313 | int driver_oss_close_vio(struct roar_vio_calls * vio) { |
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| 314 | close(_get(vio,fh)); |
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| 315 | |
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| 316 | if ( _get(vio,device) != NULL ) |
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| 317 | free(_get(vio,device)); |
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| 318 | |
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| 319 | free(vio->inst); |
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| 320 | return 0; |
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| 321 | } |
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| 322 | |
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| 323 | int driver_oss_nonblock(struct roar_vio_calls * vio, int state) { |
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| 324 | if ( roar_socket_nonblock(_get(vio,fh), state) == -1 ) |
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| 325 | return -1; |
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| 326 | |
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| 327 | if ( state == ROAR_SOCKET_NONBLOCK ) |
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| 328 | return 0; |
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| 329 | |
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| 330 | roar_vio_sync(vio); |
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| 331 | |
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| 332 | return 0; |
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| 333 | } |
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| 334 | |
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[1138] | 335 | int driver_oss_sync(struct roar_vio_calls * vio) { |
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| 336 | #ifdef SNDCTL_DSP_SYNC |
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[1518] | 337 | return ioctl(_get(vio,fh), SNDCTL_DSP_SYNC, NULL); |
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[1138] | 338 | #else |
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| 339 | return 0; |
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| 340 | #endif |
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| 341 | } |
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[916] | 342 | |
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[1151] | 343 | int driver_oss_ctl(struct roar_vio_calls * vio, int cmd, void * data) { |
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[1521] | 344 | struct driver_oss * self = vio->inst; |
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[1151] | 345 | int d; |
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| 346 | |
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[1524] | 347 | ROAR_DBG("driver_oss_ctl(vio=%p, cmd=0x%.8x, data=%p) = ?", vio, cmd, data); |
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[1521] | 348 | |
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[1151] | 349 | if ( vio == NULL ) |
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| 350 | return -1; |
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| 351 | |
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[1222] | 352 | switch (cmd) { |
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| 353 | case ROAR_VIO_CTL_GET_DELAY: |
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| 354 | #ifdef SNDCTL_DSP_GETODELAY |
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[1518] | 355 | if ( ioctl(_get(vio,fh), SNDCTL_DSP_GETODELAY, &d) == -1 ) |
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[1222] | 356 | return -1; |
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| 357 | |
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| 358 | ROAR_DBG("driver_oss_ctl(*): delay=%i byte", d); |
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[1151] | 359 | |
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[1222] | 360 | *(uint_least32_t *)data = d; |
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| 361 | #else |
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| 362 | return -1; |
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| 363 | #endif |
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| 364 | break; |
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| 365 | case ROAR_VIO_CTL_SET_DBLOCKS: |
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| 366 | #ifdef SNDCTL_DSP_SETFRAGMENT |
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[1521] | 367 | if ( !self->need_config ) { |
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| 368 | ROAR_WARN("driver_oss_ctl(*): possible late ROAR_VIO_CTL_SET_DBLOCKS, setting anyway."); |
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[1222] | 369 | } |
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[1521] | 370 | |
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| 371 | self->blocks = *(uint_least32_t *)data; |
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| 372 | #else |
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| 373 | return -1; |
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| 374 | #endif |
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| 375 | break; |
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| 376 | case ROAR_VIO_CTL_SET_DBLKSIZE: |
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| 377 | #ifdef SNDCTL_DSP_SETFRAGMENT |
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| 378 | if ( !self->need_config ) { |
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| 379 | ROAR_WARN("driver_oss_ctl(*): possible late ROAR_VIO_CTL_SET_DBLKSIZE, setting anyway."); |
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| 380 | } |
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| 381 | |
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| 382 | self->blocksize = *(uint_least32_t *)data; |
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[1222] | 383 | #else |
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| 384 | return -1; |
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| 385 | #endif |
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| 386 | break; |
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| 387 | case ROAR_VIO_CTL_GET_DBLKSIZE: |
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[1521] | 388 | if ( !self->blocksize ) |
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| 389 | return -1; |
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| 390 | |
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| 391 | *(uint_least32_t *)data = self->blocksize; |
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[1527] | 392 | break; |
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[1530] | 393 | case ROAR_VIO_CTL_GET_SSTREAMID: |
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| 394 | self->ssid = *(int *)data; |
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| 395 | break; |
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[1527] | 396 | case ROAR_VIO_CTL_SET_SSTREAM: |
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| 397 | self->stream = data; |
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[1222] | 398 | break; |
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| 399 | default: |
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| 400 | return -1; |
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| 401 | } |
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[1151] | 402 | |
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| 403 | return 0; |
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| 404 | } |
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| 405 | |
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[1518] | 406 | ssize_t driver_oss_write (struct roar_vio_calls * vio, void *buf, size_t count) { |
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[1521] | 407 | if ( _get(vio,need_config) ) { |
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| 408 | if ( driver_oss_config_device(vio->inst) == -1 ) { |
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| 409 | return -1; |
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| 410 | } |
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| 411 | } |
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| 412 | |
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[1518] | 413 | return write(_get(vio,fh), buf, count); |
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| 414 | } |
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| 415 | |
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[916] | 416 | #endif |
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| 417 | //ll |
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