source: mainline/uspace/drv/audio/hdaudio/pcm_iface.c@ 7aa94304

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 7aa94304 was 4a5ae542, checked in by Jiri Svoboda <jiri@…>, 11 years ago

Need to clear pcm_buffers pointer.
  • Property mode set to 100644
File size: 9.0 KB
Line 
1/*
2 * Copyright (c) 2014 Jiri Svoboda
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup hdaudio
30 * @{
31 */
32/** @file High Definition Audio PCM interface
33 */
34
35#include <async.h>
36#include <audio_pcm_iface.h>
37#include <ddf/log.h>
38#include <errno.h>
39#include <pcm/sample_format.h>
40#include <stdbool.h>
41
42#include "codec.h"
43#include "hdactl.h"
44#include "hdaudio.h"
45#include "pcm_iface.h"
46#include "spec/fmt.h"
47#include "stream.h"
48
49static int hda_get_info_str(ddf_fun_t *, const char **);
50static unsigned hda_query_cap(ddf_fun_t *, audio_cap_t);
51static int hda_test_format(ddf_fun_t *, unsigned *, unsigned *,
52 pcm_sample_format_t *);
53static int hda_get_buffer(ddf_fun_t *, void **, size_t *);
54static int hda_get_buffer_position(ddf_fun_t *, size_t *);
55static int hda_set_event_session(ddf_fun_t *, async_sess_t *);
56static async_sess_t *hda_get_event_session(ddf_fun_t *);
57static int hda_release_buffer(ddf_fun_t *);
58static int hda_start_playback(ddf_fun_t *, unsigned, unsigned, unsigned,
59 pcm_sample_format_t);
60static int hda_stop_playback(ddf_fun_t *, bool);
61static int hda_start_capture(ddf_fun_t *, unsigned, unsigned, unsigned,
62 pcm_sample_format_t);
63static int hda_stop_capture(ddf_fun_t *, bool);
64
65audio_pcm_iface_t hda_pcm_iface = {
66 .get_info_str = hda_get_info_str,
67 .test_format = hda_test_format,
68 .query_cap = hda_query_cap,
69
70 .get_buffer = hda_get_buffer,
71 .release_buffer = hda_release_buffer,
72 .set_event_session = hda_set_event_session,
73 .get_event_session = hda_get_event_session,
74 .get_buffer_pos = hda_get_buffer_position,
75
76 .start_playback = hda_start_playback,
77 .stop_playback = hda_stop_playback,
78
79 .start_capture = hda_start_capture,
80 .stop_capture = hda_stop_capture
81};
82
83enum {
84 max_buffer_size = 65536 /* XXX this is completely arbitrary */
85};
86
87static hda_t *fun_to_hda(ddf_fun_t *fun)
88{
89 return (hda_t *)ddf_dev_data_get(ddf_fun_get_dev(fun));
90}
91
92static int hda_get_info_str(ddf_fun_t *fun, const char **name)
93{
94 ddf_msg(LVL_NOTE, "hda_get_info_str()");
95 if (name)
96 *name = "High Definition Audio";
97 return EOK;
98}
99
100static unsigned hda_query_cap(ddf_fun_t *fun, audio_cap_t cap)
101{
102 hda_t *hda = fun_to_hda(fun);
103
104 ddf_msg(LVL_NOTE, "hda_query_cap(%d)", cap);
105 switch (cap) {
106 case AUDIO_CAP_PLAYBACK:
107 case AUDIO_CAP_INTERRUPT:
108 /* XXX Only if we have an output converter */
109 return 1;
110 case AUDIO_CAP_CAPTURE:
111 /* Yes if we have an input converter */
112 return hda->ctl->codec->in_aw >= 0;
113 case AUDIO_CAP_BUFFER_POS:
114 return 0;
115 case AUDIO_CAP_MAX_BUFFER:
116 return max_buffer_size;
117 case AUDIO_CAP_INTERRUPT_MIN_FRAMES:
118 return 128;
119 case AUDIO_CAP_INTERRUPT_MAX_FRAMES:
120 return 16384;
121 default:
122 return ENOTSUP;
123 }
124}
125
126static int hda_test_format(ddf_fun_t *fun, unsigned *channels,
127 unsigned *rate, pcm_sample_format_t *format)
128{
129 int rc = EOK;
130
131 ddf_msg(LVL_NOTE, "hda_test_format(%u, %u, %d)\n",
132 *channels, *rate, *format);
133
134 if (*channels != 1) {
135 *channels = 2;
136 rc = ELIMIT;
137 }
138
139 if (*format != PCM_SAMPLE_SINT16_LE) {
140 *format = PCM_SAMPLE_SINT16_LE;
141 rc = ELIMIT;
142 }
143
144 if (*rate != 44100) {
145 *rate = 44100;
146 rc = ELIMIT;
147 }
148
149 return rc;
150}
151
152static int hda_get_buffer(ddf_fun_t *fun, void **buffer, size_t *size)
153{
154 hda_t *hda = fun_to_hda(fun);
155 int rc;
156
157 hda_lock(hda);
158
159 ddf_msg(LVL_NOTE, "hda_get_buffer(): hda=%p", hda);
160 if (hda->pcm_buffers != NULL) {
161 hda_unlock(hda);
162 return EBUSY;
163 }
164
165 ddf_msg(LVL_NOTE, "hda_get_buffer() - allocate stream buffers");
166 rc = hda_stream_buffers_alloc(hda, &hda->pcm_buffers);
167 if (rc != EOK) {
168 assert(rc == ENOMEM);
169 hda_unlock(hda);
170 return ENOMEM;
171 }
172
173 ddf_msg(LVL_NOTE, "hda_get_buffer() - fill info");
174 /* XXX This is only one buffer */
175 *buffer = hda->pcm_buffers->buf[0];
176 *size = hda->pcm_buffers->bufsize * hda->pcm_buffers->nbuffers;
177
178 ddf_msg(LVL_NOTE, "hda_get_buffer() returing EOK, buffer=%p, size=%zu",
179 *buffer, *size);
180
181 hda_unlock(hda);
182 return EOK;
183}
184
185static int hda_get_buffer_position(ddf_fun_t *fun, size_t *pos)
186{
187 ddf_msg(LVL_NOTE, "hda_get_buffer_position()");
188 return ENOTSUP;
189}
190
191static int hda_set_event_session(ddf_fun_t *fun, async_sess_t *sess)
192{
193 hda_t *hda = fun_to_hda(fun);
194
195 ddf_msg(LVL_NOTE, "hda_set_event_session()");
196 hda_lock(hda);
197 hda->ev_sess = sess;
198 hda_unlock(hda);
199
200 return EOK;
201}
202
203static async_sess_t *hda_get_event_session(ddf_fun_t *fun)
204{
205 hda_t *hda = fun_to_hda(fun);
206 async_sess_t *sess;
207
208 ddf_msg(LVL_NOTE, "hda_get_event_session()");
209
210 hda_lock(hda);
211 sess = hda->ev_sess;
212 hda_unlock(hda);
213
214 return sess;
215}
216
217static int hda_release_buffer(ddf_fun_t *fun)
218{
219 hda_t *hda = fun_to_hda(fun);
220
221 hda_lock(hda);
222
223 ddf_msg(LVL_NOTE, "hda_release_buffer()");
224 if (hda->pcm_buffers == NULL) {
225 hda_unlock(hda);
226 return EINVAL;
227 }
228
229 hda_stream_buffers_free(hda->pcm_buffers);
230 hda->pcm_buffers = NULL;
231
232 hda_unlock(hda);
233 return EOK;
234}
235
236static int hda_start_playback(ddf_fun_t *fun, unsigned frames,
237 unsigned channels, unsigned rate, pcm_sample_format_t format)
238{
239 hda_t *hda = fun_to_hda(fun);
240 int rc;
241
242 ddf_msg(LVL_NOTE, "hda_start_playback()");
243 hda_lock(hda);
244
245 if (hda->pcm_stream != NULL) {
246 hda_unlock(hda);
247 return EBUSY;
248 }
249
250 /* XXX Choose appropriate parameters */
251 uint32_t fmt;
252 /* 48 kHz, 16-bits, 1 channel */
253 fmt = (fmt_base_44khz << fmt_base) | (fmt_bits_16 << fmt_bits_l) | 1;
254
255 ddf_msg(LVL_NOTE, "hda_start_playback() - create output stream");
256 hda->pcm_stream = hda_stream_create(hda, sdir_output, hda->pcm_buffers,
257 fmt);
258 if (hda->pcm_stream == NULL) {
259 hda_unlock(hda);
260 return EIO;
261 }
262
263 rc = hda_out_converter_setup(hda->ctl->codec, hda->pcm_stream);
264 if (rc != EOK) {
265 hda_stream_destroy(hda->pcm_stream);
266 hda->pcm_stream = NULL;
267 hda_unlock(hda);
268 return rc;
269 }
270
271 hda->playing = true;
272 hda_stream_start(hda->pcm_stream);
273 hda_unlock(hda);
274 return EOK;
275}
276
277static int hda_stop_playback(ddf_fun_t *fun, bool immediate)
278{
279 hda_t *hda = fun_to_hda(fun);
280
281 ddf_msg(LVL_NOTE, "hda_stop_playback()");
282 hda_lock(hda);
283 hda_stream_stop(hda->pcm_stream);
284 hda_stream_reset(hda->pcm_stream);
285 hda->playing = false;
286 hda_stream_destroy(hda->pcm_stream);
287 hda->pcm_stream = NULL;
288
289 hda_unlock(hda);
290
291 hda_pcm_event(hda, PCM_EVENT_PLAYBACK_TERMINATED);
292 return EOK;
293}
294
295static int hda_start_capture(ddf_fun_t *fun, unsigned frames, unsigned channels,
296 unsigned rate, pcm_sample_format_t format)
297{
298 hda_t *hda = fun_to_hda(fun);
299 int rc;
300
301 ddf_msg(LVL_NOTE, "hda_start_capture()");
302 hda_lock(hda);
303
304 if (hda->pcm_stream != NULL) {
305 hda_unlock(hda);
306 return EBUSY;
307 }
308
309 /* XXX Choose appropriate parameters */
310 uint32_t fmt;
311 /* 48 kHz, 16-bits, 1 channel */
312 fmt = (fmt_base_44khz << fmt_base) | (fmt_bits_16 << fmt_bits_l) | 1;
313
314 ddf_msg(LVL_NOTE, "hda_start_capture() - create input stream");
315 hda->pcm_stream = hda_stream_create(hda, sdir_input, hda->pcm_buffers,
316 fmt);
317 if (hda->pcm_stream == NULL) {
318 hda_unlock(hda);
319 return EIO;
320 }
321
322 rc = hda_in_converter_setup(hda->ctl->codec, hda->pcm_stream);
323 if (rc != EOK) {
324 hda_stream_destroy(hda->pcm_stream);
325 hda->pcm_stream = NULL;
326 hda_unlock(hda);
327 return rc;
328 }
329
330 hda->capturing = true;
331 hda_stream_start(hda->pcm_stream);
332 hda_unlock(hda);
333 return EOK;
334}
335
336static int hda_stop_capture(ddf_fun_t *fun, bool immediate)
337{
338 hda_t *hda = fun_to_hda(fun);
339
340 ddf_msg(LVL_NOTE, "hda_stop_capture()");
341 hda_lock(hda);
342 hda_stream_stop(hda->pcm_stream);
343 hda_stream_reset(hda->pcm_stream);
344 hda->capturing = false;
345 hda_stream_destroy(hda->pcm_stream);
346 hda->pcm_stream = NULL;
347 hda_unlock(hda);
348
349 hda_pcm_event(hda, PCM_EVENT_CAPTURE_TERMINATED);
350 return EOK;
351}
352
353void hda_pcm_event(hda_t *hda, pcm_event_t event)
354{
355 async_exch_t *exchange;
356
357 if (hda->ev_sess == NULL) {
358 if (0) ddf_log_warning("No one listening for event %u", event);
359 return;
360 }
361
362 exchange = async_exchange_begin(hda->ev_sess);
363 async_msg_1(exchange, event, 0);
364 async_exchange_end(exchange);
365}
366
367/** @}
368 */
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