[4809] | 1 | //driver_artsc.c: |
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| 2 | |
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| 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2011 |
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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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| 28 | #ifdef ROAR_HAVE_LIBARTSC |
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| 29 | |
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| 30 | #define INIT +1 |
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| 31 | #define SHUTDOWN -1 |
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| 32 | |
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| 33 | static int driver_artsc_init_shutdown (int action) { |
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| 34 | static int state = 0; |
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| 35 | |
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| 36 | if ( action != INIT && action != SHUTDOWN ) |
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| 37 | return -1; |
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| 38 | |
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| 39 | if ( state == 0 && action == INIT ) { |
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| 40 | if ( arts_init() != 0 ) |
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| 41 | return -1; |
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| 42 | } else if ( state == 1 && action == SHUTDOWN ) { |
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| 43 | arts_free(); |
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| 44 | } |
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| 45 | |
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| 46 | state += action; |
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| 47 | |
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| 48 | return 0; |
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| 49 | } |
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| 50 | |
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| 51 | int driver_artsc_open_vio(struct roar_vio_calls * inst, char * device, struct roar_audio_info * info, int fh, struct roar_stream_server * sstream) { |
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| 52 | struct roar_artsc * self = NULL; |
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| 53 | |
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| 54 | (void)sstream; |
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| 55 | |
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| 56 | if ( fh != -1 || device != NULL ) |
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| 57 | return -1; |
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| 58 | |
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| 59 | self = roar_mm_malloc(sizeof(struct roar_artsc)); |
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| 60 | |
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| 61 | if ( self == NULL ) |
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| 62 | return -1; |
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| 63 | |
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| 64 | memset(self, 0, sizeof(struct roar_artsc)); |
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| 65 | |
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| 66 | if ( driver_artsc_init_shutdown(INIT) == -1 ) { |
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| 67 | roar_mm_free(self); |
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| 68 | return -1; |
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| 69 | } |
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| 70 | |
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| 71 | info->codec = ROAR_CODEC_DEFAULT; |
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| 72 | |
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| 73 | self->info = info; |
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| 74 | self->stream = arts_play_stream(info->rate, info->bits, info->channels, "roard"); |
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| 75 | |
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| 76 | if ( self->stream == NULL ) { |
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| 77 | roar_mm_free(self); |
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| 78 | driver_artsc_init_shutdown(SHUTDOWN); |
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| 79 | return -1; |
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| 80 | } |
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| 81 | |
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| 82 | memset(inst, 0, sizeof(struct roar_vio_calls)); |
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| 83 | |
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| 84 | inst->inst = (void*) self; |
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| 85 | inst->write = driver_artsc_write; |
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| 86 | inst->close = driver_artsc_close; |
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| 87 | inst->ctl = driver_artsc_ctl; |
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| 88 | inst->nonblock = driver_artsc_nonblock; |
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| 89 | |
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| 90 | return 0; |
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| 91 | } |
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| 92 | |
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| 93 | ssize_t driver_artsc_write (struct roar_vio_calls * vio, void *buf, size_t count) { |
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| 94 | struct roar_artsc * self = vio->inst; |
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| 95 | int ret = arts_write(self->stream, buf, count); |
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| 96 | |
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| 97 | if ( ret >= 0 ) |
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| 98 | return ret; |
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| 99 | |
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| 100 | return -1; |
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| 101 | } |
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| 102 | |
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| 103 | int driver_artsc_close (struct roar_vio_calls * vio) { |
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| 104 | struct roar_artsc * self = vio->inst; |
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| 105 | |
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| 106 | arts_close_stream(self->stream); |
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| 107 | |
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| 108 | roar_mm_free(self); |
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| 109 | |
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| 110 | return driver_artsc_init_shutdown(SHUTDOWN); |
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| 111 | } |
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| 112 | |
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| 113 | int driver_artsc_nonblock(struct roar_vio_calls * vio, int state) { |
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| 114 | struct roar_artsc * self = vio->inst; |
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| 115 | int ret; |
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| 116 | |
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| 117 | switch (state) { |
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| 118 | case ROAR_SOCKET_NONBLOCK: |
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| 119 | ret = arts_stream_set(self->stream, ARTS_P_BLOCKING, 0); |
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| 120 | if ( ret == 0 ) |
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| 121 | return 0; |
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| 122 | break; |
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| 123 | case ROAR_SOCKET_BLOCK: |
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| 124 | ret = arts_stream_set(self->stream, ARTS_P_BLOCKING, 1); |
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| 125 | if ( ret == 1 ) |
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| 126 | return 0; |
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| 127 | break; |
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| 128 | } |
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| 129 | |
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| 130 | return -1; |
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| 131 | } |
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| 132 | |
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| 133 | int driver_artsc_ctl (struct roar_vio_calls * vio, int cmd, void * data) { |
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| 134 | struct roar_artsc * self = vio->inst; |
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| 135 | ssize_t bps; |
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| 136 | int ret; |
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| 137 | uint_least32_t tmp; |
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| 138 | |
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| 139 | switch (cmd) { |
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| 140 | case ROAR_VIO_CTL_GET_DBLKSIZE: |
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| 141 | ret = arts_stream_get(self->stream, ARTS_P_PACKET_SIZE); |
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| 142 | if ( ret > 0 ) { |
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| 143 | *(uint_least32_t *)data = ret; |
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| 144 | return 0; |
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| 145 | } |
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| 146 | break; |
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| 147 | case ROAR_VIO_CTL_GET_DELAY: |
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| 148 | ret = arts_stream_get(self->stream, ARTS_P_TOTAL_LATENCY); |
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| 149 | if ( ret < 0 ) |
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| 150 | return -1; |
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| 151 | bps = roar_info2bitspersec(self->info); |
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| 152 | if ( bps < 0 ) |
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| 153 | return -1; |
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| 154 | |
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| 155 | tmp = bps / (ssize_t)8; |
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| 156 | tmp *= ret; |
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| 157 | tmp /= (uint_least32_t)1000; |
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| 158 | |
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| 159 | *(uint_least32_t *)data = tmp; |
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| 160 | |
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| 161 | return 0; |
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| 162 | default: |
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| 163 | return -1; |
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| 164 | } |
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| 165 | |
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| 166 | return -1; |
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| 167 | } |
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| 168 | |
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| 169 | #endif |
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| 170 | |
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| 171 | //ll |
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