[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 | const char * name; |
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| 33 | const char * desc; |
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| 34 | const char * devs; |
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| 35 | int flags; |
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| 36 | 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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| 37 | int (*close)(struct hwmixer_stream * stream); |
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| 38 | int (*set_vol)(struct hwmixer_stream * stream, int channels, int mode, struct roar_mixer_settings * settings); |
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| 39 | int (*get_vol)(struct hwmixer_stream * stream, int channels, int mode, struct roar_mixer_settings * settings); |
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| 40 | }; |
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| 41 | |
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| 42 | static int __true (void) { return 0; } |
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| 43 | |
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| 44 | struct hwmixer g_hwmixers[] = { |
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[4390] | 45 | #if defined(ROAR_HAVE_OSS_BSD) || defined(ROAR_HAVE_OSS) |
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[4392] | 46 | {"oss", "OSS Mixer", "/dev/mixer*", FLAG_FHSEC, hwmixer_oss_open, hwmixer_oss_close, hwmixer_oss_set_vol, hwmixer_oss_get_vol}, |
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[4390] | 47 | #endif |
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[4392] | 48 | {"dstr", "Write to DSTR", "/some/file", FLAG_FHSEC, hwmixer_dstr_open, hwmixer_dstr_close, hwmixer_dstr_set_vol, NULL}, |
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| 49 | {"null", "Null Mixer", NULL, FLAG_NONE, (int (*)(struct hwmixer_stream * stream, char * drv, char * dev, int fh, char * basename, struct roar_keyval * subnames, size_t subnamelen))__true, (int (*)(struct hwmixer_stream * stream))__true, (int (*)(struct hwmixer_stream * stream, int channels, int mode, struct roar_mixer_settings * settings))__true, (int (*)(struct hwmixer_stream * stream, int channels, int mode, struct roar_mixer_settings * settings))__true}, |
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[4361] | 50 | {NULL, NULL, NULL, FLAG_NONE, NULL, NULL, NULL, NULL} |
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| 51 | }; |
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| 52 | |
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[4360] | 53 | void print_hwmixerlist (void) { |
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[4361] | 54 | struct hwmixer * mixer; |
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| 55 | int i; |
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| 56 | |
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[4360] | 57 | printf(" Source Flag Subsys - Description (devices)\n"); |
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| 58 | printf("------------------------------------------------------\n"); |
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[4361] | 59 | |
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| 60 | for (i = 0; (mixer = &(g_hwmixers[i]))->name != NULL; i++) { |
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| 61 | printf(" %-9s %c Mixer - %s (devices: %s)\n", |
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| 62 | mixer->name, |
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| 63 | mixer->flags & FLAG_FHSEC ? 's' : ' ', |
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| 64 | mixer->desc, |
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| 65 | mixer->devs == NULL ? "(none)" : mixer->devs |
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| 66 | ); |
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| 67 | } |
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| 68 | } |
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| 69 | |
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| 70 | void hwmixer_setup_info(struct hwmixer_stream * mstream) { |
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| 71 | struct roar_stream_server * ss; |
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| 72 | |
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| 73 | streams_get(mstream->stream, &ss); |
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| 74 | |
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| 75 | memset(&(ROAR_STREAM(ss)->info), 0, sizeof(ROAR_STREAM(ss)->info)); |
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| 76 | |
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| 77 | streams_set_dir(mstream->stream, ROAR_DIR_MIXING, 1); |
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| 78 | |
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| 79 | streams_set_flag(mstream->stream, ROAR_FLAG_HWMIXER); |
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[4360] | 80 | } |
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| 81 | |
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| 82 | int hwmixer_open(int basestream, char * drv, char * dev, int fh, char * basename, char * subnames) { |
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[4367] | 83 | struct roar_stream_server * ss; |
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[4361] | 84 | struct roar_keyval * subnamekv = NULL; |
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| 85 | struct hwmixer * mixer = NULL; |
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| 86 | struct hwmixer_stream * stream; |
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| 87 | ssize_t subnamekvlen = 0; |
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| 88 | int i; |
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| 89 | int ret; |
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| 90 | |
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| 91 | for (i = 0; g_hwmixers[i].name != NULL; i++) { |
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| 92 | if ( !strcmp(g_hwmixers[i].name, drv) ) { |
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| 93 | mixer = &(g_hwmixers[i]); |
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| 94 | break; |
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| 95 | } |
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| 96 | } |
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| 97 | |
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| 98 | if ( mixer == NULL ) { |
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| 99 | 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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| 100 | return -1; |
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| 101 | } |
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| 102 | |
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| 103 | if ( mixer->open == NULL ) { |
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| 104 | return -1; |
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| 105 | } |
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| 106 | |
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| 107 | if ( fh != -1 && !(mixer->flags & FLAG_FHSEC) ) { |
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| 108 | return -1; |
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| 109 | } |
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| 110 | |
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| 111 | stream = roar_mm_malloc(sizeof(struct hwmixer_stream)); |
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| 112 | if ( stream == NULL ) |
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| 113 | return -1; |
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| 114 | |
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| 115 | memset(stream, 0, sizeof(struct hwmixer_stream)); |
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| 116 | |
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| 117 | stream->hwmixer = mixer; |
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| 118 | stream->basestream = basestream; |
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| 119 | stream->stream = basestream; |
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| 120 | stream->baseud = NULL; |
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| 121 | stream->ud = NULL; |
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| 122 | |
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| 123 | if ( basename == NULL ) { |
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| 124 | streams_set_name(basestream, "Hardware Mixer"); |
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| 125 | } else { |
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| 126 | streams_set_name(basestream, basename); |
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| 127 | } |
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| 128 | |
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[4363] | 129 | hwmixer_setup_info(stream); |
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| 130 | |
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[4387] | 131 | if ( subnames != NULL ) { |
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| 132 | subnamekvlen = roar_keyval_split(&subnamekv, subnames, ",;", "=:", 0); |
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| 133 | } |
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| 134 | |
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[4361] | 135 | ret = mixer->open(stream, drv, dev, fh, basename, subnamekv, subnamekvlen); |
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| 136 | |
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[4387] | 137 | if ( subnamekv != NULL ) |
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| 138 | roar_mm_free(subnamekv); |
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| 139 | |
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[4361] | 140 | if ( ret == -1 ) { |
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| 141 | roar_mm_free(stream); |
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| 142 | return -1; |
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| 143 | } |
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| 144 | |
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| 145 | streams_set_mixerstream(basestream, stream); |
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| 146 | |
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[4379] | 147 | // try to get in sync with HW mixer. |
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| 148 | // if possible read hw mixer state. |
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| 149 | // if not possible write to force a sync value. |
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[4367] | 150 | if ( streams_get(basestream, &ss) == 0 ) { |
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[4379] | 151 | if ( mixer->get_vol != NULL ) { |
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| 152 | hwmixer_get_volume(basestream, ss, stream, &(ss->mixer)); |
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| 153 | } else { |
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| 154 | hwmixer_set_volume(basestream, ss, stream, &(ss->mixer)); |
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| 155 | } |
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[4367] | 156 | } |
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| 157 | |
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[4361] | 158 | return 0; |
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| 159 | } |
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| 160 | |
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| 161 | int hwmixer_close(int stream) { |
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| 162 | struct hwmixer_stream * mstream = streams_get_mixerstream(stream); |
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| 163 | |
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| 164 | if ( mstream == NULL ) |
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| 165 | return 0; |
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| 166 | |
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| 167 | if ( mstream->hwmixer->close != NULL ) |
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| 168 | mstream->hwmixer->close(mstream); |
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| 169 | |
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| 170 | roar_mm_free(mstream); |
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| 171 | |
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| 172 | return 0; |
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[4360] | 173 | } |
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| 174 | |
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[4365] | 175 | int hwmixer_set_volume(int id, struct roar_stream_server * ss, struct hwmixer_stream * mstream, struct roar_mixer_settings * |
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| 176 | settings) { |
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| 177 | if ( mstream->hwmixer->set_vol != NULL ) |
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| 178 | return mstream->hwmixer->set_vol(mstream, ROAR_STREAM(ss)->info.channels, HWMIXER_MODE_SET, settings); |
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| 179 | |
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| 180 | return 0; |
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| 181 | } |
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| 182 | |
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[4379] | 183 | int hwmixer_get_volume(int id, struct roar_stream_server * ss, struct hwmixer_stream * mstream, struct roar_mixer_settings * |
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| 184 | settings) { |
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| 185 | if ( mstream->hwmixer->get_vol != NULL ) |
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| 186 | return mstream->hwmixer->get_vol(mstream, ROAR_STREAM(ss)->info.channels, HWMIXER_MODE_ASK, settings); |
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| 187 | |
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| 188 | return 0; |
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| 189 | } |
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| 190 | |
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[4368] | 191 | struct hwmixer_stream * hwmixer_substream_new(struct hwmixer_stream * parent) { |
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| 192 | struct roar_stream_server * ss; |
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| 193 | struct hwmixer_stream * stream; |
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| 194 | int id; |
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| 195 | |
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[4371] | 196 | ROAR_DBG("hwmixer_substream_new(parent=%p) = ?", parent); |
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| 197 | |
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[4368] | 198 | if ( parent == NULL ) |
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| 199 | return NULL; |
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| 200 | |
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[4371] | 201 | ROAR_DBG("hwmixer_substream_new(parent=%p) = ?", parent); |
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| 202 | |
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[4368] | 203 | stream = roar_mm_malloc(sizeof(struct hwmixer_stream)); |
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| 204 | if ( stream == NULL ) |
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| 205 | return NULL; |
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| 206 | |
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[4371] | 207 | ROAR_DBG("hwmixer_substream_new(parent=%p) = ?", parent); |
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| 208 | |
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[4368] | 209 | if ( (id = streams_new_virtual(parent->basestream, &ss)) == -1 ) { |
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| 210 | roar_mm_free(stream); |
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| 211 | return NULL; |
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| 212 | } |
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| 213 | |
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| 214 | memset(stream, 0, sizeof(struct hwmixer_stream)); |
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| 215 | |
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| 216 | stream->hwmixer = parent->hwmixer; |
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| 217 | stream->basestream = parent->basestream; |
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| 218 | stream->stream = id; |
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| 219 | stream->baseud = parent->baseud; |
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| 220 | stream->ud = NULL; |
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| 221 | |
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| 222 | hwmixer_setup_info(stream); |
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| 223 | |
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| 224 | streams_set_mixerstream(id, stream); |
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| 225 | |
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[4371] | 226 | ROAR_DBG("hwmixer_substream_new(parent=%p) = %p", parent, stream); |
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| 227 | |
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[4368] | 228 | return stream; |
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| 229 | } |
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| 230 | |
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[4359] | 231 | //ll |
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