source: mainline/uspace/drv/audio/hdaudio/pcm_iface.c@ 1e3375b

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 1e3375b was 57a2208, checked in by Jiri Svoboda <jiri@…>, 11 years ago

Hound should use the logging framework. Prevent hdaudio from sending frames played event after sending playback termination event. Remove unnecessary delays.
  • Property mode set to 100644
File size: 7.4 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 ddf_msg(LVL_NOTE, "hda_query_cap(%d)", cap);
103 switch (cap) {
104 case AUDIO_CAP_PLAYBACK:
105 case AUDIO_CAP_INTERRUPT:
106 return 1;
107 case AUDIO_CAP_BUFFER_POS:
108 case AUDIO_CAP_CAPTURE:
109 return 0;
110 case AUDIO_CAP_MAX_BUFFER:
111 return max_buffer_size;
112 case AUDIO_CAP_INTERRUPT_MIN_FRAMES:
113 return 128;
114 case AUDIO_CAP_INTERRUPT_MAX_FRAMES:
115 return 16384;
116 default:
117 return ENOTSUP;
118 }
119}
120
121static int hda_test_format(ddf_fun_t *fun, unsigned *channels,
122 unsigned *rate, pcm_sample_format_t *format)
123{
124 int rc = EOK;
125
126 ddf_msg(LVL_NOTE, "hda_test_format(%u, %u, %d)\n",
127 *channels, *rate, *format);
128
129 if (*channels != 1) {
130 *channels = 2;
131 rc = ELIMIT;
132 }
133
134 if (*format != PCM_SAMPLE_SINT16_LE) {
135 *format = PCM_SAMPLE_SINT16_LE;
136 rc = ELIMIT;
137 }
138
139 if (*rate != 44100) {
140 *rate = 44100;
141 rc = ELIMIT;
142 }
143
144 return rc;
145}
146
147static int hda_get_buffer(ddf_fun_t *fun, void **buffer, size_t *size)
148{
149 hda_t *hda = fun_to_hda(fun);
150
151 hda_lock(hda);
152
153 ddf_msg(LVL_NOTE, "hda_get_buffer(): hda=%p", hda);
154 if (hda->pcm_stream != NULL) {
155 hda_unlock(hda);
156 return EBUSY;
157 }
158
159 /* XXX Choose appropriate parameters */
160 uint32_t fmt;
161 /* 48 kHz, 16-bits, 1 channel */
162 fmt = (fmt_base_44khz << fmt_base) | (fmt_bits_16 << fmt_bits_l) | 1;
163
164 ddf_msg(LVL_NOTE, "hda_get_buffer() - create stream");
165 hda->pcm_stream = hda_stream_create(hda, sdir_output, fmt);
166 if (hda->pcm_stream == NULL) {
167 hda_unlock(hda);
168 return EIO;
169 }
170
171 ddf_msg(LVL_NOTE, "hda_get_buffer() - fill info");
172 /* XXX This is only one buffer */
173 *buffer = hda->pcm_stream->buf[0];
174 *size = hda->pcm_stream->bufsize * hda->pcm_stream->nbuffers;
175
176 ddf_msg(LVL_NOTE, "hda_get_buffer() retturing EOK, buffer=%p, size=%zu",
177 *buffer, *size);
178
179 hda_unlock(hda);
180 return EOK;
181}
182
183static int hda_get_buffer_position(ddf_fun_t *fun, size_t *pos)
184{
185 ddf_msg(LVL_NOTE, "hda_get_buffer_position()");
186 return ENOTSUP;
187}
188
189static int hda_set_event_session(ddf_fun_t *fun, async_sess_t *sess)
190{
191 hda_t *hda = fun_to_hda(fun);
192
193 ddf_msg(LVL_NOTE, "hda_set_event_session()");
194 hda_lock(hda);
195 hda->ev_sess = sess;
196 hda_unlock(hda);
197
198 return EOK;
199}
200
201static async_sess_t *hda_get_event_session(ddf_fun_t *fun)
202{
203 hda_t *hda = fun_to_hda(fun);
204 async_sess_t *sess;
205
206 ddf_msg(LVL_NOTE, "hda_get_event_session()");
207
208 hda_lock(hda);
209 sess = hda->ev_sess;
210 hda_unlock(hda);
211
212 return sess;
213}
214
215static int hda_release_buffer(ddf_fun_t *fun)
216{
217 hda_t *hda = fun_to_hda(fun);
218
219 hda_lock(hda);
220
221 ddf_msg(LVL_NOTE, "hda_release_buffer()");
222 if (hda->pcm_stream == NULL) {
223 hda_unlock(hda);
224 return EINVAL;
225 }
226
227 hda_stream_destroy(hda->pcm_stream);
228 hda->pcm_stream = NULL;
229
230 hda_unlock(hda);
231 return EOK;
232}
233
234static int hda_start_playback(ddf_fun_t *fun, unsigned frames,
235 unsigned channels, unsigned rate, pcm_sample_format_t format)
236{
237 hda_t *hda = fun_to_hda(fun);
238 int rc;
239
240 ddf_msg(LVL_NOTE, "hda_start_playback()");
241 hda_lock(hda);
242
243 rc = hda_out_converter_setup(hda->ctl->codec, hda->pcm_stream);
244 if (rc != EOK) {
245 hda_unlock(hda);
246 return rc;
247 }
248
249 hda_stream_start(hda->pcm_stream);
250 hda->playing = true;
251 hda_unlock(hda);
252 return EOK;
253}
254
255static int hda_stop_playback(ddf_fun_t *fun, bool immediate)
256{
257 hda_t *hda = fun_to_hda(fun);
258
259 ddf_msg(LVL_NOTE, "hda_stop_playback()");
260 hda_lock(hda);
261 hda_stream_stop(hda->pcm_stream);
262 hda_stream_reset(hda->pcm_stream);
263 hda->playing = false;
264 hda_unlock(hda);
265
266 hda_pcm_event(hda, PCM_EVENT_PLAYBACK_TERMINATED);
267 return EOK;
268}
269
270static int hda_start_capture(ddf_fun_t *fun, unsigned frames, unsigned channels,
271 unsigned rate, pcm_sample_format_t format)
272{
273 ddf_msg(LVL_NOTE, "hda_start_capture()");
274 return ENOTSUP;
275}
276
277static int hda_stop_capture(ddf_fun_t *fun, bool immediate)
278{
279 ddf_msg(LVL_NOTE, "hda_stop_capture()");
280 return ENOTSUP;
281}
282
283void hda_pcm_event(hda_t *hda, pcm_event_t event)
284{
285 async_exch_t *exchange;
286
287 if (hda->ev_sess == NULL) {
288 if (0) ddf_log_warning("No one listening for event %u", event);
289 return;
290 }
291
292 exchange = async_exchange_begin(hda->ev_sess);
293 async_msg_1(exchange, event, 0);
294 async_exchange_end(exchange);
295}
296
297/** @}
298 */
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