[1412a184] | 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 stream
|
---|
| 33 | */
|
---|
| 34 |
|
---|
| 35 | #ifndef STREAM_H
|
---|
[3fec817] | 36 | #define STREAM_H
|
---|
[1412a184] | 37 |
|
---|
| 38 | #include "hdaudio.h"
|
---|
| 39 | #include "spec/bdl.h"
|
---|
| 40 |
|
---|
| 41 | typedef enum {
|
---|
| 42 | /** Input Stream */
|
---|
| 43 | sdir_input,
|
---|
| 44 | /** Output Stream */
|
---|
| 45 | sdir_output,
|
---|
| 46 | /** Bidirectional Stream */
|
---|
| 47 | sdir_bidi
|
---|
| 48 | } hda_stream_dir_t;
|
---|
| 49 |
|
---|
[0e4c5f0] | 50 | typedef struct hda_stream_buffers {
|
---|
[1412a184] | 51 | /** Number of buffers */
|
---|
| 52 | size_t nbuffers;
|
---|
| 53 | /** Buffer size */
|
---|
| 54 | size_t bufsize;
|
---|
| 55 | /** Buffer Descriptor List */
|
---|
| 56 | hda_buffer_desc_t *bdl;
|
---|
| 57 | /** Physical address of BDL */
|
---|
| 58 | uintptr_t bdl_phys;
|
---|
| 59 | /** Buffers */
|
---|
| 60 | void **buf;
|
---|
| 61 | /** Physical addresses of buffers */
|
---|
| 62 | uintptr_t *buf_phys;
|
---|
[0e4c5f0] | 63 | } hda_stream_buffers_t;
|
---|
| 64 |
|
---|
| 65 | typedef struct hda_stream {
|
---|
| 66 | hda_t *hda;
|
---|
| 67 | /** Stream ID */
|
---|
| 68 | uint8_t sid;
|
---|
| 69 | /** Stream descriptor index */
|
---|
| 70 | uint8_t sdid;
|
---|
| 71 | /** Direction */
|
---|
| 72 | hda_stream_dir_t dir;
|
---|
| 73 | /** Buffers */
|
---|
| 74 | hda_stream_buffers_t *buffers;
|
---|
[1412a184] | 75 | /** Stream format */
|
---|
| 76 | uint32_t fmt;
|
---|
| 77 | } hda_stream_t;
|
---|
| 78 |
|
---|
[b7fd2a0] | 79 | extern errno_t hda_stream_buffers_alloc(hda_t *, hda_stream_buffers_t **);
|
---|
[0e4c5f0] | 80 | extern void hda_stream_buffers_free(hda_stream_buffers_t *);
|
---|
| 81 | extern hda_stream_t *hda_stream_create(hda_t *, hda_stream_dir_t,
|
---|
| 82 | hda_stream_buffers_t *, uint32_t);
|
---|
[1412a184] | 83 | extern void hda_stream_destroy(hda_stream_t *);
|
---|
[6747b929] | 84 | extern void hda_stream_start(hda_stream_t *);
|
---|
| 85 | extern void hda_stream_stop(hda_stream_t *);
|
---|
| 86 | extern void hda_stream_reset(hda_stream_t *);
|
---|
[1412a184] | 87 |
|
---|
| 88 | #endif
|
---|
| 89 |
|
---|
| 90 | /** @}
|
---|
| 91 | */
|
---|