[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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[2569] | 37 | #ifdef SNDCTL_DSP_SETFRAGMENT |
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| 38 | static void roar_cdriver_oss_try_buf_setups(int fh) { |
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| 39 | int blocksizes[] = {11, 12, 13}; |
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| 40 | int blocks[] = {4, 5, 6, 3, 7, 2, 8}; |
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| 41 | int bs, b; |
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| 42 | int tmp; |
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| 43 | |
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| 44 | for (bs = 0; bs < sizeof(blocksizes)/sizeof(int); bs++) { |
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| 45 | for (b = 0; b < sizeof(blocks) /sizeof(int); b++ ) { |
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| 46 | tmp = blocksizes[bs] | (blocks[b] << 16); |
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| 47 | if ( ioctl(fh, SNDCTL_DSP_SETFRAGMENT, &tmp) == 0 ) |
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| 48 | return; |
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| 49 | } |
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| 50 | } |
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| 51 | } |
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| 52 | #endif |
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| 53 | |
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[2132] | 54 | #define _err() roar_vio_close(calls); return -1 |
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| 55 | |
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[2131] | 56 | 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] | 57 | int fh; |
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| 58 | int tmp, ctmp; |
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| 59 | |
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[2135] | 60 | ROAR_DBG("roar_cdriver_oss(*) = ?"); |
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| 61 | |
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[2217] | 62 | #ifdef ROAR_DEFAULT_OSS_DEV |
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[2132] | 63 | if ( dev == NULL ) |
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| 64 | dev = ROAR_DEFAULT_OSS_DEV; |
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[2217] | 65 | #endif |
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[2132] | 66 | |
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| 67 | if ( dev == NULL ) |
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| 68 | return -1; |
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| 69 | |
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[2135] | 70 | ROAR_DBG("roar_cdriver_oss(*) = ?"); |
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| 71 | |
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[2136] | 72 | switch (dir) { |
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| 73 | case ROAR_DIR_PLAY: |
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| 74 | case ROAR_DIR_MONITOR: |
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| 75 | case ROAR_DIR_OUTPUT: |
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| 76 | tmp = O_WRONLY; |
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| 77 | break; |
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| 78 | case ROAR_DIR_BIDIR: |
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| 79 | tmp = O_RDWR; |
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| 80 | break; |
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| 81 | case ROAR_DIR_RECORD: |
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| 82 | tmp = O_RDONLY; |
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[2301] | 83 | break; |
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[2136] | 84 | default: |
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| 85 | return -1; |
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| 86 | } |
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| 87 | |
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[2301] | 88 | ROAR_DBG("roar_cdriver_oss(*) = ?"); |
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| 89 | |
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[2136] | 90 | if ( roar_vio_open_file(calls, dev, tmp, 0644) == -1 ) |
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[2132] | 91 | return -1; |
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| 92 | |
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| 93 | if ( roar_vio_ctl(calls, ROAR_VIO_CTL_GET_FH, &fh) == -1 ) { |
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| 94 | _err(); |
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| 95 | } |
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| 96 | |
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| 97 | // channels: |
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| 98 | #ifdef SNDCTL_DSP_CHANNELS |
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| 99 | tmp = info->channels; |
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| 100 | |
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| 101 | if ( ioctl(fh, SNDCTL_DSP_CHANNELS, &tmp) == -1 ) { |
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| 102 | _err(); |
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| 103 | } |
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| 104 | |
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| 105 | if ( tmp != info->channels ) { |
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| 106 | _err(); |
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| 107 | } |
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| 108 | #else |
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| 109 | switch (info->channels) { |
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| 110 | case 1: tmp = 0; break; |
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| 111 | case 2: tmp = 1; break; |
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| 112 | default: _err(); |
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| 113 | } |
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| 114 | |
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| 115 | if ( ioctl(fh, SNDCTL_DSP_STEREO, &tmp) == -1 ) { |
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| 116 | _err(); |
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| 117 | } |
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| 118 | #endif |
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| 119 | |
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| 120 | // codec/bits: |
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| 121 | if ( info->codec != ROAR_CODEC_ALAW && info->codec != ROAR_CODEC_MULAW && info->bits != 16 ) { |
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| 122 | // other modes are currently not supported |
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| 123 | _err(); |
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| 124 | } |
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| 125 | |
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| 126 | switch (info->codec) { |
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| 127 | case ROAR_CODEC_PCM_S_LE: |
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[2137] | 128 | tmp = AFMT_S16_LE; |
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| 129 | break; |
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[2132] | 130 | case ROAR_CODEC_PCM_S_BE: |
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[2137] | 131 | tmp = AFMT_S16_BE; |
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| 132 | break; |
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[2132] | 133 | case ROAR_CODEC_PCM_U_LE: |
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[2137] | 134 | tmp = AFMT_U16_LE; |
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| 135 | break; |
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[2132] | 136 | case ROAR_CODEC_PCM_U_BE: |
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[2137] | 137 | tmp = AFMT_U16_BE; |
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[2132] | 138 | break; |
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| 139 | case ROAR_CODEC_ALAW: |
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| 140 | tmp = AFMT_A_LAW; |
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| 141 | break; |
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| 142 | case ROAR_CODEC_MULAW: |
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| 143 | tmp = AFMT_MU_LAW; |
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| 144 | break; |
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[2138] | 145 | default: |
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| 146 | _err(); |
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[2132] | 147 | } |
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| 148 | |
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| 149 | ctmp = tmp; |
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| 150 | #ifdef SNDCTL_DSP_SETFMT |
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| 151 | if ( ioctl(fh, SNDCTL_DSP_SETFMT, &tmp) == -1 ) { |
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| 152 | #else |
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| 153 | if ( ioctl(fh, SNDCTL_DSP_SAMPLESIZE, &tmp) == -1 ) { |
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| 154 | #endif |
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| 155 | _err(); |
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| 156 | } |
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| 157 | |
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| 158 | if ( tmp != ctmp ) { |
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| 159 | _err(); |
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| 160 | } |
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| 161 | |
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| 162 | // rate: |
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| 163 | tmp = info->rate; |
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| 164 | |
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| 165 | if ( ioctl(fh, SNDCTL_DSP_SPEED, &tmp) == -1 ) { |
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| 166 | _err(); |
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| 167 | } |
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| 168 | |
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| 169 | if ( tmp != info->rate ) { |
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| 170 | _err(); |
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| 171 | } |
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| 172 | |
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[2569] | 173 | #ifdef SNDCTL_DSP_SETFRAGMENT |
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| 174 | roar_cdriver_oss_try_buf_setups(fh); |
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| 175 | #endif |
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| 176 | |
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[2132] | 177 | return 0; |
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[2131] | 178 | } |
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| 179 | |
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[2132] | 180 | #endif |
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| 181 | |
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[2131] | 182 | //ll |
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