1 | //driver_dmx.c: |
---|
2 | |
---|
3 | /* |
---|
4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2009 |
---|
5 | * |
---|
6 | * This file is part of roard a part of RoarAudio, |
---|
7 | * a cross-platform sound system for both, home and professional use. |
---|
8 | * See README for details. |
---|
9 | * |
---|
10 | * This file is free software; you can redistribute it and/or modify |
---|
11 | * it under the terms of the GNU General Public License version 3 |
---|
12 | * as published by the Free Software Foundation. |
---|
13 | * |
---|
14 | * RoarAudio is distributed in the hope that it will be useful, |
---|
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
---|
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
---|
17 | * GNU General Public License for more details. |
---|
18 | * |
---|
19 | * You should have received a copy of the GNU General Public License |
---|
20 | * along with this software; see the file COPYING. If not, write to |
---|
21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
---|
22 | * |
---|
23 | */ |
---|
24 | |
---|
25 | #include "roard.h" |
---|
26 | |
---|
27 | int driver_dmx_open_vio (struct roar_vio_calls * inst, char * device, struct roar_audio_info * info, int fh) { |
---|
28 | |
---|
29 | if ( fh == -1 ) { |
---|
30 | if ( device == NULL ) |
---|
31 | device = getenv("DMX"); |
---|
32 | |
---|
33 | if ( device == NULL ) |
---|
34 | device = "/dev/dmx"; |
---|
35 | |
---|
36 | if ( roar_vio_open_file(inst, device, O_WRONLY, 0644) == -1 ) |
---|
37 | return -1; |
---|
38 | } else { |
---|
39 | if ( roar_vio_open_fh(inst, fh) == -1 ) |
---|
40 | return -1; |
---|
41 | } |
---|
42 | |
---|
43 | inst->write = driver_dmx_write; |
---|
44 | inst->ctl = driver_dmx_ctl; |
---|
45 | |
---|
46 | info->codec = ROAR_CODEC_DMX512; |
---|
47 | |
---|
48 | return 0; |
---|
49 | } |
---|
50 | |
---|
51 | ssize_t driver_dmx_write (struct roar_vio_calls * vio, void *buf, size_t count) { |
---|
52 | if ( vio == NULL || buf == NULL ) |
---|
53 | return -1; |
---|
54 | |
---|
55 | if ( count != 512 ) |
---|
56 | return -1; |
---|
57 | |
---|
58 | if ( roar_vio_basic_lseek(vio, 0, SEEK_SET) == (off_t)-1 ) |
---|
59 | return -1; |
---|
60 | |
---|
61 | return roar_vio_basic_write(vio, buf, count); |
---|
62 | } |
---|
63 | |
---|
64 | int driver_dmx_ctl(struct roar_vio_calls * vio, int cmd, void * data) { |
---|
65 | |
---|
66 | if ( vio == NULL ) |
---|
67 | return -1; |
---|
68 | |
---|
69 | switch (cmd) { |
---|
70 | case ROAR_VIO_CTL_SET_SSTREAM: |
---|
71 | ROAR_STREAM(data)->dir = ROAR_DIR_LIGHT_OUT; |
---|
72 | ROAR_STREAM_SERVER(data)->codec_orgi = ROAR_CODEC_DMX512; |
---|
73 | break; |
---|
74 | default: |
---|
75 | return -1; |
---|
76 | } |
---|
77 | |
---|
78 | return 0; |
---|
79 | } |
---|
80 | |
---|
81 | //ll |
---|