source: roaraudio/libroareio/driver.c @ 5616:48f7d8f2ef08

Last change on this file since 5616:48f7d8f2ef08 was 5616:48f7d8f2ef08, checked in by phi, 12 years ago

corrected newlion

File size: 4.9 KB
Line 
1//driver.c:
2
3/*
4 *      Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2009-2012
5 *
6 *  This file is part of roarclients 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, 51 Franklin Street, Fifth Floor,
22 *  Boston, MA 02110-1301, USA.
23 *
24 */
25
26#include <roaraudio.h>
27#include "driver.h"
28#include "autodetected.h"
29
30#ifdef ROAR_HAVE_AD_ESDFW
31#include "driver_esdfw.h"
32#endif
33
34static int roar_cdriver_null(struct roar_vio_calls * calls, const char * name, const char * dev, struct roar_audio_info * info, int dir, struct roar_keyval * para, ssize_t paralen) {
35 ROAR_DBG("roar_cdriver_null(calls=%p, name='%s', dev='%s', info=%p{...}, dir=%i(?)) = ?", calls, name, dev, info, dir);
36
37 (void)name, (void)dev, (void)info, (void)dir, (void)para, (void)paralen;
38
39 memset(calls, 0, sizeof(struct roar_vio_calls));
40 calls->flags = ROAR_VIO_FLAGS_NONE;
41 calls->refc  = 1;
42 calls->read  = roar_vio_null_rw;
43 calls->write = roar_vio_null_rw;
44
45 ROAR_DBG("roar_cdriver_null(calls=%p, name='%s', dev='%s', info=%p{...}, dir=%i(?)) = 0", calls, name, dev, info, dir);
46 return 0;
47}
48
49struct {
50 const char * name;
51 int  (*open)(struct roar_vio_calls * calls, const char * name, const char * dev, struct roar_audio_info * info, int dir);
52 int  (*open2)(struct roar_vio_calls * calls, const char * name, const char * dev, struct roar_audio_info * info, int dir, struct roar_keyval * para, ssize_t paralen);
53} _g_roar_cdriver[] = {
54 {"null", NULL, roar_cdriver_null},
55 {"roar", roar_cdriver_roar, NULL},
56#if defined(ROAR_HAVE_OSS_BSD) || defined(ROAR_HAVE_OSS)
57 {"oss",  roar_cdriver_oss, NULL},
58#endif
59#ifdef ROAR_HAVE_AD_ESDFW
60#include "driver_esdfw.c"
61#endif
62 {NULL, NULL, NULL}
63};
64
65
66static int roar_cdriver_open_default(struct roar_vio_calls * calls, const char * dev, struct roar_audio_info * info, int dir, struct roar_keyval * para, ssize_t paralen) {
67 const char * names[] = {
68  // native APIs:
69  "oss",
70  // Virtual APIs:
71  "roar",
72  // Dummys:
73  "null"
74 };
75 size_t i;
76 int ret;
77
78 if ( dev != NULL ) {
79  ROAR_WARN("roar_cdriver_open_default(calls=%p, dev='%s', info=%p, dir=%i): Try to open given device without driver name is a bad thing to do. This is normaly a Application error.", calls, dev, info, dir);
80 }
81
82 for (i = 0; i < (sizeof(names)/sizeof(*names)); i++) {
83  ret = roar_cdriver_open2(calls, names[i], dev, info, dir, para, paralen);
84  if ( ret != -1 )
85   return ret;
86 }
87
88 // roar_error is still set to the error of the last tested driver.
89 return -1;
90}
91
92int roar_cdriver_open2(struct roar_vio_calls * calls, const char * name, const char * dev, struct roar_audio_info * info, int dir, struct roar_keyval * para, ssize_t paralen) {
93 int i;
94 char *delm;
95
96 if ( name == NULL )
97  return roar_cdriver_open_default(calls, dev, info, dir, para, paralen);
98
99 for (i = 0; _g_roar_cdriver[i].name != NULL; i++) {
100  ROAR_DBG("roar_cdriver_open(*): _g_roar_cdriver[i].name='%s' <cmp> name='%s'", _g_roar_cdriver[i].name, name);
101
102  if ( !strcmp(_g_roar_cdriver[i].name, name) ) {
103   if ( _g_roar_cdriver[i].open2 != NULL )
104    return _g_roar_cdriver[i].open2(calls, name, dev, info, dir, para, paralen);
105   if ( _g_roar_cdriver[i].open != NULL )
106    return _g_roar_cdriver[i].open(calls, name, dev, info, dir);
107  }
108
109  if ( (delm = strstr(_g_roar_cdriver[i].name, ":")) != NULL ) {
110   ROAR_DBG("roar_cdriver_open(*): delm+1='%s' <cmp> name='%s'", delm+1, name);
111   if ( !strcmp(delm+1, name) ) {
112    if ( _g_roar_cdriver[i].open2 != NULL )
113     return _g_roar_cdriver[i].open2(calls, name, dev, info, dir, para, paralen);
114    if ( _g_roar_cdriver[i].open != NULL )
115     return _g_roar_cdriver[i].open(calls, name, dev, info, dir);
116   }
117  }
118
119 }
120
121 roar_err_set(ROAR_ERROR_NOENT);
122 return -1;
123}
124
125ssize_t   roar_profiles_list   (const char ** list, size_t len, size_t offset) {
126 size_t i;
127 size_t idx = 0;
128
129 if ( list == NULL ) {
130  roar_err_set(ROAR_ERROR_FAULT);
131  return -1;
132 }
133
134 if ( len == 0 )
135  return 0;
136
137 if ( offset >= (sizeof(_g_roar_cdriver)/sizeof(*_g_roar_cdriver)) )
138  return 0;
139
140 for (i = offset; _g_roar_cdriver[i].name != NULL; i++) {
141  list[idx++] = _g_roar_cdriver[i].name;
142 }
143
144 return idx;
145}
146
147int roar_cdriver_open(struct roar_vio_calls * calls, const char * name, const char * dev, struct roar_audio_info * info, int dir) {
148 return roar_cdriver_open2(calls, name, dev, info, dir, NULL, -1);
149}
150
151//ll
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