[4359] | 1 | //hwmixer.c: |
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| 2 | |
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| 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010 |
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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, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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| 23 | * |
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| 24 | */ |
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| 25 | |
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| 26 | #include "roard.h" |
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| 27 | |
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[4361] | 28 | #define FLAG_NONE 0x0000 |
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| 29 | #define FLAG_FHSEC 0x0001 |
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| 30 | |
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| 31 | struct hwmixer; |
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| 32 | |
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| 33 | struct hwmixer_stream { |
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| 34 | struct hwmixer * hwmixer; |
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| 35 | int basestream; |
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| 36 | int stream; |
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| 37 | void * baseud; |
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| 38 | void * ud; |
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| 39 | }; |
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| 40 | |
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| 41 | struct hwmixer { |
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| 42 | const char * name; |
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| 43 | const char * desc; |
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| 44 | const char * devs; |
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| 45 | int flags; |
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| 46 | int (*open)(struct hwmixer_stream * stream, char * drv, char * dev, int fh, char * basename, struct roar_keyval * subnames, size_t subnamelen); |
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| 47 | int (*close)(struct hwmixer_stream * stream); |
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| 48 | int (*set_vol)(struct hwmixer_stream * stream, int channels, int mode, struct roar_mixer_settings * settings); |
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| 49 | int (*get_vol)(struct hwmixer_stream * stream, int channels, int mode, struct roar_mixer_settings * settings); |
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| 50 | }; |
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| 51 | |
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| 52 | static int __true (void) { return 0; } |
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| 53 | |
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| 54 | struct hwmixer g_hwmixers[] = { |
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| 55 | {"oss", "OSS Mixer", "/dev/mixer*", FLAG_FHSEC, NULL, NULL, NULL, NULL}, |
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| 56 | {"file", "Write to plain file", "/some/file", FLAG_FHSEC, NULL, NULL, NULL, NULL}, |
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| 57 | {"dstr", "Write to DSTR", "/some/file", FLAG_NONE, NULL, NULL, NULL, NULL}, |
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| 58 | {"null", "Null Mixer", NULL, FLAG_NONE, __true, __true, __true, __true}, |
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| 59 | {NULL, NULL, NULL, FLAG_NONE, NULL, NULL, NULL, NULL} |
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| 60 | }; |
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| 61 | |
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[4360] | 62 | void print_hwmixerlist (void) { |
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[4361] | 63 | struct hwmixer * mixer; |
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| 64 | int i; |
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| 65 | |
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[4360] | 66 | printf(" Source Flag Subsys - Description (devices)\n"); |
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| 67 | printf("------------------------------------------------------\n"); |
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[4361] | 68 | |
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| 69 | for (i = 0; (mixer = &(g_hwmixers[i]))->name != NULL; i++) { |
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| 70 | printf(" %-9s %c Mixer - %s (devices: %s)\n", |
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| 71 | mixer->name, |
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| 72 | mixer->flags & FLAG_FHSEC ? 's' : ' ', |
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| 73 | mixer->desc, |
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| 74 | mixer->devs == NULL ? "(none)" : mixer->devs |
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| 75 | ); |
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| 76 | } |
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| 77 | } |
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| 78 | |
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| 79 | void hwmixer_setup_info(struct hwmixer_stream * mstream) { |
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| 80 | struct roar_stream_server * ss; |
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| 81 | |
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| 82 | streams_get(mstream->stream, &ss); |
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| 83 | |
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| 84 | memset(&(ROAR_STREAM(ss)->info), 0, sizeof(ROAR_STREAM(ss)->info)); |
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| 85 | |
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| 86 | streams_set_dir(mstream->stream, ROAR_DIR_MIXING, 1); |
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| 87 | |
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| 88 | streams_set_flag(mstream->stream, ROAR_FLAG_HWMIXER); |
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[4360] | 89 | } |
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| 90 | |
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| 91 | int hwmixer_open(int basestream, char * drv, char * dev, int fh, char * basename, char * subnames) { |
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[4361] | 92 | struct roar_keyval * subnamekv = NULL; |
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| 93 | struct hwmixer * mixer = NULL; |
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| 94 | struct hwmixer_stream * stream; |
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| 95 | ssize_t subnamekvlen = 0; |
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| 96 | int i; |
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| 97 | int ret; |
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| 98 | |
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| 99 | for (i = 0; g_hwmixers[i].name != NULL; i++) { |
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| 100 | if ( !strcmp(g_hwmixers[i].name, drv) ) { |
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| 101 | mixer = &(g_hwmixers[i]); |
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| 102 | break; |
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| 103 | } |
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| 104 | } |
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| 105 | |
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| 106 | if ( mixer == NULL ) { |
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| 107 | ROAR_WARN("hwmixer_open(basestream=%i, drv='%s', dev='%s', fh=%i, basename='%s', subnames='%s'): Driver not found.", basestream, drv, dev, fh, basename, subnames); |
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| 108 | return -1; |
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| 109 | } |
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| 110 | |
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| 111 | if ( mixer->open == NULL ) { |
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| 112 | return -1; |
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| 113 | } |
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| 114 | |
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| 115 | if ( fh != -1 && !(mixer->flags & FLAG_FHSEC) ) { |
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| 116 | return -1; |
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| 117 | } |
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| 118 | |
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| 119 | stream = roar_mm_malloc(sizeof(struct hwmixer_stream)); |
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| 120 | if ( stream == NULL ) |
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| 121 | return -1; |
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| 122 | |
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| 123 | memset(stream, 0, sizeof(struct hwmixer_stream)); |
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| 124 | |
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| 125 | stream->hwmixer = mixer; |
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| 126 | stream->basestream = basestream; |
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| 127 | stream->stream = basestream; |
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| 128 | stream->baseud = NULL; |
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| 129 | stream->ud = NULL; |
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| 130 | |
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| 131 | if ( basename == NULL ) { |
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| 132 | streams_set_name(basestream, "Hardware Mixer"); |
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| 133 | } else { |
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| 134 | streams_set_name(basestream, basename); |
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| 135 | } |
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| 136 | |
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| 137 | ret = mixer->open(stream, drv, dev, fh, basename, subnamekv, subnamekvlen); |
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| 138 | |
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| 139 | if ( ret == -1 ) { |
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| 140 | roar_mm_free(stream); |
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| 141 | return -1; |
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| 142 | } |
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| 143 | |
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| 144 | hwmixer_setup_info(stream); |
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| 145 | |
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| 146 | streams_set_mixerstream(basestream, stream); |
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| 147 | |
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| 148 | return 0; |
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| 149 | } |
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| 150 | |
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| 151 | int hwmixer_close(int stream) { |
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| 152 | struct hwmixer_stream * mstream = streams_get_mixerstream(stream); |
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| 153 | |
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| 154 | if ( mstream == NULL ) |
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| 155 | return 0; |
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| 156 | |
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| 157 | if ( mstream->hwmixer->close != NULL ) |
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| 158 | mstream->hwmixer->close(mstream); |
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| 159 | |
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| 160 | roar_mm_free(mstream); |
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| 161 | |
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| 162 | return 0; |
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[4360] | 163 | } |
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| 164 | |
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[4359] | 165 | //ll |
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