1 | //hwmixer_oss.c: |
---|
2 | |
---|
3 | /* |
---|
4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010 |
---|
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, 51 Franklin Street, Fifth Floor, |
---|
22 | * Boston, MA 02110-1301, USA. |
---|
23 | * |
---|
24 | */ |
---|
25 | |
---|
26 | #include "roard.h" |
---|
27 | |
---|
28 | #if defined(ROAR_HAVE_OSS_BSD) || defined(ROAR_HAVE_OSS) |
---|
29 | |
---|
30 | #define OSS_VOLUME_SCALE 100 |
---|
31 | |
---|
32 | struct subdev { |
---|
33 | int bit; |
---|
34 | int channels; |
---|
35 | long long int cmd_read, cmd_write; |
---|
36 | }; |
---|
37 | |
---|
38 | static struct subdev_map { |
---|
39 | const char * name; |
---|
40 | struct subdev subdev; |
---|
41 | } g_subdevs[] = { |
---|
42 | {"Volume", {.bit = SOUND_MASK_VOLUME, .cmd_read = SOUND_MIXER_READ_VOLUME, .cmd_write = SOUND_MIXER_WRITE_VOLUME }}, |
---|
43 | {"Bass", {.bit = SOUND_MASK_BASS, .cmd_read = SOUND_MIXER_READ_BASS, .cmd_write = SOUND_MIXER_WRITE_BASS }}, |
---|
44 | {"Treble", {.bit = SOUND_MASK_TREBLE, .cmd_read = SOUND_MIXER_READ_TREBLE, .cmd_write = SOUND_MIXER_WRITE_TREBLE }}, |
---|
45 | {"Synth", {.bit = SOUND_MASK_SYNTH, .cmd_read = SOUND_MIXER_READ_SYNTH, .cmd_write = SOUND_MIXER_WRITE_SYNTH }}, |
---|
46 | {"PCM", {.bit = SOUND_MASK_PCM, .cmd_read = SOUND_MIXER_READ_PCM, .cmd_write = SOUND_MIXER_WRITE_PCM }}, |
---|
47 | {"Speaker", {.bit = SOUND_MASK_SPEAKER, .cmd_read = SOUND_MIXER_READ_SPEAKER, .cmd_write = SOUND_MIXER_WRITE_SPEAKER }}, |
---|
48 | {"Line", {.bit = SOUND_MASK_LINE, .cmd_read = SOUND_MIXER_READ_LINE, .cmd_write = SOUND_MIXER_WRITE_LINE }}, |
---|
49 | {"Mic", {.bit = SOUND_MASK_MIC, .cmd_read = SOUND_MIXER_READ_MIC, .cmd_write = SOUND_MIXER_WRITE_MIC }}, |
---|
50 | {"CD", {.bit = SOUND_MASK_CD, .cmd_read = SOUND_MIXER_READ_CD, .cmd_write = SOUND_MIXER_WRITE_CD }}, |
---|
51 | {"Imix", {.bit = SOUND_MASK_IMIX, .cmd_read = SOUND_MIXER_READ_IMIX, .cmd_write = SOUND_MIXER_WRITE_IMIX }}, |
---|
52 | {"AltPCM", {.bit = SOUND_MASK_ALTPCM, .cmd_read = SOUND_MIXER_READ_ALTPCM, .cmd_write = SOUND_MIXER_WRITE_ALTPCM }}, |
---|
53 | {"Reclev", {.bit = SOUND_MASK_RECLEV, .cmd_read = SOUND_MIXER_READ_RECLEV, .cmd_write = SOUND_MIXER_WRITE_RECLEV }}, |
---|
54 | {"IGain", {.bit = SOUND_MASK_IGAIN, .cmd_read = SOUND_MIXER_READ_IGAIN, .cmd_write = SOUND_MIXER_WRITE_IGAIN }}, |
---|
55 | {"OGain", {.bit = SOUND_MASK_OGAIN, .cmd_read = SOUND_MIXER_READ_OGAIN, .cmd_write = SOUND_MIXER_WRITE_OGAIN }}, |
---|
56 | {"Line1", {.bit = SOUND_MASK_LINE1, .cmd_read = SOUND_MIXER_READ_LINE1, .cmd_write = SOUND_MIXER_WRITE_LINE1 }}, |
---|
57 | {"Line2", {.bit = SOUND_MASK_LINE2, .cmd_read = SOUND_MIXER_READ_LINE2, .cmd_write = SOUND_MIXER_WRITE_LINE2 }}, |
---|
58 | {"Line3", {.bit = SOUND_MASK_LINE3, .cmd_read = SOUND_MIXER_READ_LINE3, .cmd_write = SOUND_MIXER_WRITE_LINE3 }}, |
---|
59 | /* |
---|
60 | {"Digital1", {.bit = SOUND_MASK_DIGITAL1, .cmd_read = SOUND_MIXER_READ_DIGITAL1, .cmd_write = SOUND_MIXER_WRITE_DIGITAL1}}, |
---|
61 | {"Digital2", {.bit = SOUND_MASK_DIGITAL2, .cmd_read = SOUND_MIXER_READ_DIGITAL2, .cmd_write = SOUND_MIXER_WRITE_DIGITAL2}}, |
---|
62 | {"Digital3", {.bit = SOUND_MASK_DIGITAL3, .cmd_read = SOUND_MIXER_READ_DIGITAL3, .cmd_write = SOUND_MIXER_WRITE_DIGITAL3}}, |
---|
63 | {"PhoneIn", {.bit = SOUND_MASK_PHONEIN, .cmd_read = SOUND_MIXER_READ_PHONEIN, .cmd_write = SOUND_MIXER_WRITE_PHONEIN }}, |
---|
64 | {"PhoneOut", {.bit = SOUND_MASK_PHONEOUT, .cmd_read = SOUND_MIXER_READ_PHONEOUT, .cmd_write = SOUND_MIXER_WRITE_PHONEOUT}}, |
---|
65 | {"Radio", {.bit = SOUND_MASK_RADIO, .cmd_read = SOUND_MIXER_READ_RADIO, .cmd_write = SOUND_MIXER_WRITE_RADIO }}, |
---|
66 | {"Video", {.bit = SOUND_MASK_VIDEO, .cmd_read = SOUND_MIXER_READ_VIDEO, .cmd_write = SOUND_MIXER_WRITE_VIDEO }}, |
---|
67 | {"Monitor", {.bit = SOUND_MASK_MONITOR, .cmd_read = SOUND_MIXER_READ_MONITOR, .cmd_write = SOUND_MIXER_WRITE_MONITOR }}, |
---|
68 | */ |
---|
69 | // Alias with better name: |
---|
70 | {"Master", {.bit = SOUND_MASK_VOLUME, .cmd_read = SOUND_MIXER_READ_VOLUME, .cmd_write = SOUND_MIXER_WRITE_VOLUME }}, |
---|
71 | {"PCM2", {.bit = SOUND_MASK_ALTPCM, .cmd_read = SOUND_MIXER_READ_ALTPCM, .cmd_write = SOUND_MIXER_WRITE_ALTPCM }}, |
---|
72 | {NULL} |
---|
73 | }; |
---|
74 | |
---|
75 | static int hwmixer_oss_open_stream(struct hwmixer_stream * stream, int devmask, int sdevmask, char * basename, struct roar_keyval * subname) { |
---|
76 | struct subdev * subdev; |
---|
77 | struct subdev * source_subdev = NULL; |
---|
78 | struct roar_stream_server * ss; |
---|
79 | const char * reqname = subname->value; |
---|
80 | int i; |
---|
81 | char name[80]; |
---|
82 | |
---|
83 | for (i = 0; g_subdevs[i].name != NULL; i++) { |
---|
84 | if ( !strcasecmp(subname->key, g_subdevs[i].name) ) { |
---|
85 | source_subdev = &(g_subdevs[i].subdev); |
---|
86 | if ( reqname == NULL ) |
---|
87 | reqname = g_subdevs[i].name; |
---|
88 | break; |
---|
89 | } |
---|
90 | } |
---|
91 | |
---|
92 | if ( source_subdev == NULL ) |
---|
93 | return -1; |
---|
94 | |
---|
95 | if ( !(devmask & source_subdev->bit) ) |
---|
96 | return -1; |
---|
97 | |
---|
98 | subdev = roar_mm_malloc(sizeof(struct subdev)); |
---|
99 | |
---|
100 | if ( subdev == NULL ) |
---|
101 | return -1; |
---|
102 | |
---|
103 | memcpy(subdev, source_subdev, sizeof(struct subdev)); |
---|
104 | |
---|
105 | subdev->channels = sdevmask & subdev->bit ? 2 : 1; |
---|
106 | |
---|
107 | stream->ud = subdev; |
---|
108 | |
---|
109 | if ( basename == NULL ) { |
---|
110 | streams_set_name(stream->stream, (char*)reqname); |
---|
111 | } else { |
---|
112 | snprintf(name, sizeof(name)-1, "%s/%s", basename, reqname); |
---|
113 | name[sizeof(name)-1] = 0; |
---|
114 | streams_set_name(stream->stream, name); |
---|
115 | } |
---|
116 | |
---|
117 | if (streams_get(stream->stream, &ss) != -1) { |
---|
118 | ROAR_STREAM(ss)->info.channels = subdev->channels; |
---|
119 | } else { |
---|
120 | ROAR_WARN("hwmixer_dstr_open(*): can not get object for stream %i", stream->stream); |
---|
121 | } |
---|
122 | |
---|
123 | return 0; |
---|
124 | } |
---|
125 | |
---|
126 | int hwmixer_oss_open(struct hwmixer_stream * stream, char * drv, char * dev, int fh, char * basename, struct roar_keyval * subnames, size_t subnamelen) { |
---|
127 | struct roar_vio_calls * vio = roar_mm_malloc(sizeof(struct roar_vio_calls)); |
---|
128 | struct roar_vio_defaults def; |
---|
129 | struct roar_vio_sysio_ioctl ctl; |
---|
130 | struct roar_keyval kv; |
---|
131 | struct hwmixer_stream * cstream; |
---|
132 | int devmask, sdevmask; |
---|
133 | mixer_info info; |
---|
134 | size_t i; |
---|
135 | |
---|
136 | if ( vio == NULL ) { |
---|
137 | return -1; |
---|
138 | } |
---|
139 | |
---|
140 | if ( fh == -1 ) { |
---|
141 | #ifdef ROAR_DEFAULT_OSS_MIX_DEV |
---|
142 | if ( dev == NULL ) { |
---|
143 | dev = ROAR_DEFAULT_OSS_MIX_DEV; |
---|
144 | } |
---|
145 | #endif |
---|
146 | |
---|
147 | if ( dev == NULL ) { |
---|
148 | roar_mm_free(vio); |
---|
149 | return -1; |
---|
150 | } |
---|
151 | |
---|
152 | if ( roar_vio_dstr_init_defaults(&def, ROAR_VIO_DEF_TYPE_FILE, O_RDWR, 0644) == -1 ) { |
---|
153 | roar_mm_free(vio); |
---|
154 | return -1; |
---|
155 | } |
---|
156 | |
---|
157 | if ( roar_vio_open_dstr(vio, dev, &def, 1) == -1 ) { |
---|
158 | roar_mm_free(vio); |
---|
159 | return -1; |
---|
160 | } |
---|
161 | } else { |
---|
162 | if ( roar_vio_open_fh(vio, fh) == -1 ) { |
---|
163 | roar_mm_free(vio); |
---|
164 | return -1; |
---|
165 | } |
---|
166 | } |
---|
167 | |
---|
168 | stream->baseud = vio; |
---|
169 | |
---|
170 | ctl.cmd = SOUND_MIXER_READ_DEVMASK; |
---|
171 | ctl.argp = &devmask; |
---|
172 | |
---|
173 | if ( roar_vio_ctl(vio, ROAR_VIO_CTL_SYSIO_IOCTL, &ctl) == -1 ) { |
---|
174 | roar_vio_close(vio); |
---|
175 | roar_mm_free(vio); |
---|
176 | return -1; |
---|
177 | } |
---|
178 | |
---|
179 | ctl.cmd = SOUND_MIXER_READ_STEREODEVS; |
---|
180 | ctl.argp = &sdevmask; |
---|
181 | |
---|
182 | if ( roar_vio_ctl(vio, ROAR_VIO_CTL_SYSIO_IOCTL, &ctl) == -1 ) { |
---|
183 | sdevmask = 0; |
---|
184 | } |
---|
185 | |
---|
186 | if ( basename == NULL ) { |
---|
187 | ctl.cmd = SOUND_MIXER_INFO; |
---|
188 | ctl.argp = &info; |
---|
189 | |
---|
190 | if ( roar_vio_ctl(vio, ROAR_VIO_CTL_SYSIO_IOCTL, &ctl) == 0 ) { |
---|
191 | basename = info.name; |
---|
192 | } |
---|
193 | } |
---|
194 | |
---|
195 | if ( subnamelen == 0 ) { |
---|
196 | kv.key = "Master"; |
---|
197 | kv.value = NULL; |
---|
198 | |
---|
199 | if ( hwmixer_oss_open_stream(stream, devmask, sdevmask, basename, &kv) == -1 ) { |
---|
200 | roar_vio_close(vio); |
---|
201 | roar_mm_free(vio); |
---|
202 | return -1; |
---|
203 | } |
---|
204 | } else { |
---|
205 | if ( hwmixer_oss_open_stream(stream, devmask, sdevmask, basename, subnames) == -1 ) { |
---|
206 | roar_vio_close(vio); |
---|
207 | roar_mm_free(vio); |
---|
208 | return -1; |
---|
209 | } |
---|
210 | |
---|
211 | for (i = 1; i < subnamelen; i++) { |
---|
212 | cstream = hwmixer_substream_new(stream); |
---|
213 | if ( hwmixer_oss_open_stream(cstream, devmask, sdevmask, basename, &(subnames[i])) == -1 ) { |
---|
214 | roar_vio_close(vio); |
---|
215 | roar_mm_free(vio); |
---|
216 | return -1; |
---|
217 | } |
---|
218 | } |
---|
219 | } |
---|
220 | |
---|
221 | |
---|
222 | #ifdef TEST_HWMIXER_SUBSTREAMS |
---|
223 | stream = hwmixer_substream_new(stream); |
---|
224 | if ( stream == NULL ) { |
---|
225 | ROAR_WARN("hwmixer_dstr_open(*): can not create substream"); |
---|
226 | } else { |
---|
227 | if (streams_get(stream->stream, &ss) != -1) { |
---|
228 | ROAR_STREAM(ss)->info.channels = 2; |
---|
229 | } else { |
---|
230 | ROAR_WARN("hwmixer_dstr_open(*): can not get object for stream %i", stream->stream); |
---|
231 | } |
---|
232 | } |
---|
233 | #endif |
---|
234 | |
---|
235 | return 0; |
---|
236 | } |
---|
237 | |
---|
238 | int hwmixer_oss_close(struct hwmixer_stream * stream) { |
---|
239 | // are we a substream? if yes we do not clean up anything. |
---|
240 | // streams_delete() will do all our work. |
---|
241 | |
---|
242 | roar_mm_free(stream->ud); |
---|
243 | |
---|
244 | if ( stream->stream != stream->basestream ) |
---|
245 | return 0; |
---|
246 | |
---|
247 | roar_vio_close(stream->baseud); |
---|
248 | roar_mm_free(stream->baseud); |
---|
249 | return 0; |
---|
250 | } |
---|
251 | |
---|
252 | int hwmixer_oss_set_vol(struct hwmixer_stream * stream, int channels, int mode, struct roar_mixer_settings * settings) { |
---|
253 | struct roar_vio_calls * vio = stream->baseud; |
---|
254 | struct roar_vio_sysio_ioctl ctl; |
---|
255 | struct subdev * subdev = stream->ud; |
---|
256 | int i; |
---|
257 | int l, r; |
---|
258 | |
---|
259 | if ( channels == 0 ) |
---|
260 | return 0; |
---|
261 | |
---|
262 | if ( channels == 1 ) { |
---|
263 | l = r = settings->mixer[0]; |
---|
264 | } else { |
---|
265 | l = settings->mixer[0]; |
---|
266 | r = settings->mixer[1]; |
---|
267 | } |
---|
268 | |
---|
269 | if ( subdev->channels == 1 ) { |
---|
270 | l = r = (l + r) / 2; |
---|
271 | } |
---|
272 | |
---|
273 | l = (l * OSS_VOLUME_SCALE) / settings->scale; |
---|
274 | r = (r * OSS_VOLUME_SCALE) / settings->scale; |
---|
275 | |
---|
276 | i = (l & 0xFF) | ((r & 0xFF) << 8); |
---|
277 | |
---|
278 | ctl.cmd = subdev->cmd_write; |
---|
279 | ctl.argp = &i; |
---|
280 | |
---|
281 | return roar_vio_ctl(vio, ROAR_VIO_CTL_SYSIO_IOCTL, &ctl); |
---|
282 | } |
---|
283 | |
---|
284 | int hwmixer_oss_get_vol(struct hwmixer_stream * stream, int channels, int mode, struct roar_mixer_settings * settings) { |
---|
285 | struct roar_vio_calls * vio = stream->baseud; |
---|
286 | struct roar_vio_sysio_ioctl ctl; |
---|
287 | struct subdev * subdev = stream->ud; |
---|
288 | int i; |
---|
289 | int l, r; |
---|
290 | |
---|
291 | ctl.cmd = subdev->cmd_read; |
---|
292 | ctl.argp = &i; |
---|
293 | |
---|
294 | if ( roar_vio_ctl(vio, ROAR_VIO_CTL_SYSIO_IOCTL, &ctl) == -1 ) |
---|
295 | return -1; |
---|
296 | |
---|
297 | l = i & 0xFF; |
---|
298 | r = (i >> 8) & 0xFF; |
---|
299 | |
---|
300 | if ( subdev->channels == 1 ) |
---|
301 | r = l; |
---|
302 | |
---|
303 | settings->scale = OSS_VOLUME_SCALE; |
---|
304 | |
---|
305 | if ( channels == 1 ) { |
---|
306 | settings->mixer[0] = (l + r) / 2; |
---|
307 | } else if ( channels == 2 ) { |
---|
308 | settings->mixer[0] = l; |
---|
309 | settings->mixer[1] = r; |
---|
310 | } else { |
---|
311 | return -1; |
---|
312 | } |
---|
313 | |
---|
314 | return 0; |
---|
315 | } |
---|
316 | |
---|
317 | #endif |
---|
318 | |
---|
319 | //ll |
---|