source: mainline/uspace/drv/audio/hdaudio/pcm_iface.c@ de16f89

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since de16f89 was 3fec817, checked in by Jiri Svoboda <jiri@…>, 11 years ago

Get format from stream.
  • Property mode set to 100644
File size: 7.0 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 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 ddf_msg(LVL_NOTE, "hda_get_buffer(): hda=%p", hda);
152 if (hda->pcm_stream != NULL)
153 return EBUSY;
154
155 /* XXX Choose appropriate parameters */
156 uint32_t fmt;
157 /* 48 kHz, 16-bits, 1 channel */
158 fmt = (fmt_base_44khz << fmt_base) | (fmt_bits_16 << fmt_bits_l) | 1;
159
160 ddf_msg(LVL_NOTE, "hda_get_buffer() - create stream");
161 hda->pcm_stream = hda_stream_create(hda, sdir_output, fmt);
162 if (hda->pcm_stream == NULL)
163 return EIO;
164
165 ddf_msg(LVL_NOTE, "hda_get_buffer() - fill info");
166 /* XXX This is only one buffer */
167 *buffer = hda->pcm_stream->buf[0];
168 *size = hda->pcm_stream->bufsize * hda->pcm_stream->nbuffers;
169
170 ddf_msg(LVL_NOTE, "hda_get_buffer() retturing EOK, buffer=%p, size=%zu",
171 *buffer, *size);
172 return EOK;
173}
174
175static int hda_get_buffer_position(ddf_fun_t *fun, size_t *pos)
176{
177 ddf_msg(LVL_NOTE, "hda_get_buffer_position()");
178 return ENOTSUP;
179}
180
181static int hda_set_event_session(ddf_fun_t *fun, async_sess_t *sess)
182{
183 hda_t *hda = fun_to_hda(fun);
184
185 ddf_msg(LVL_NOTE, "hda_set_event_session()");
186 hda->ev_sess = sess;
187 return EOK;
188}
189
190static async_sess_t *hda_get_event_session(ddf_fun_t *fun)
191{
192 hda_t *hda = fun_to_hda(fun);
193
194 ddf_msg(LVL_NOTE, "hda_get_event_session()");
195 return hda->ev_sess;
196}
197
198static int hda_release_buffer(ddf_fun_t *fun)
199{
200 hda_t *hda = fun_to_hda(fun);
201
202 ddf_msg(LVL_NOTE, "hda_release_buffer()");
203 if (hda->pcm_stream == NULL)
204 return EINVAL;
205
206 hda_stream_destroy(hda->pcm_stream);
207 hda->pcm_stream = NULL;
208 return EOK;
209}
210
211static int hda_start_playback(ddf_fun_t *fun, unsigned frames,
212 unsigned channels, unsigned rate, pcm_sample_format_t format)
213{
214 hda_t *hda = fun_to_hda(fun);
215 int rc;
216
217 ddf_msg(LVL_NOTE, "hda_start_playback()");
218
219 rc = hda_out_converter_setup(hda->ctl->codec, hda->pcm_stream);
220 if (rc != EOK)
221 return rc;
222
223 async_usleep(1000*1000);
224 hda_stream_start(hda->pcm_stream);
225 return EOK;
226}
227
228static int hda_stop_playback(ddf_fun_t *fun, bool immediate)
229{
230 hda_t *hda = fun_to_hda(fun);
231
232 ddf_msg(LVL_NOTE, "hda_stop_playback()");
233 hda_stream_stop(hda->pcm_stream);
234 hda_stream_reset(hda->pcm_stream);
235
236 hda_pcm_event(hda, PCM_EVENT_PLAYBACK_TERMINATED);
237 return EOK;
238}
239
240static int hda_start_capture(ddf_fun_t *fun, unsigned frames, unsigned channels,
241 unsigned rate, pcm_sample_format_t format)
242{
243 ddf_msg(LVL_NOTE, "hda_start_capture()");
244 return ENOTSUP;
245}
246
247static int hda_stop_capture(ddf_fun_t *fun, bool immediate)
248{
249 ddf_msg(LVL_NOTE, "hda_stop_capture()");
250 return ENOTSUP;
251}
252
253void hda_pcm_event(hda_t *hda, pcm_event_t event)
254{
255 async_exch_t *exchange;
256
257 if (hda->ev_sess == NULL) {
258 if (0) ddf_log_warning("No one listening for event %u", event);
259 return;
260 }
261
262 exchange = async_exchange_begin(hda->ev_sess);
263 async_msg_1(exchange, event, 0);
264 async_exchange_end(exchange);
265}
266
267/** @}
268 */
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