| 1 | /*
|
|---|
| 2 | * Copyright (c) 2011 Jan Vesely
|
|---|
| 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 | /** @addtogroup drvaudiosb16
|
|---|
| 29 | * @{
|
|---|
| 30 | */
|
|---|
| 31 | /** @file
|
|---|
| 32 | * @brief Sound Blaster Digital Sound Processor (DSP) helper functions.
|
|---|
| 33 | */
|
|---|
| 34 | #ifndef DRV_AUDIO_SB16_DSP_H
|
|---|
| 35 | #define DRV_AUDIO_SB16_DSP_H
|
|---|
| 36 |
|
|---|
| 37 | #include <ddf/driver.h>
|
|---|
| 38 | #include <libarch/ddi.h>
|
|---|
| 39 | #include <errno.h>
|
|---|
| 40 | #include <pcm_sample_format.h>
|
|---|
| 41 |
|
|---|
| 42 | #include "registers.h"
|
|---|
| 43 |
|
|---|
| 44 | typedef struct sb_dsp_t {
|
|---|
| 45 | sb16_regs_t *regs;
|
|---|
| 46 | int dma8_channel;
|
|---|
| 47 | int dma16_channel;
|
|---|
| 48 | struct {
|
|---|
| 49 | uint8_t major;
|
|---|
| 50 | uint8_t minor;
|
|---|
| 51 | } version;
|
|---|
| 52 | struct {
|
|---|
| 53 | uint8_t *data;
|
|---|
| 54 | size_t size;
|
|---|
| 55 | } buffer;
|
|---|
| 56 | struct {
|
|---|
| 57 | uint8_t mode;
|
|---|
| 58 | uint16_t samples;
|
|---|
| 59 | bool playing;
|
|---|
| 60 | } active;
|
|---|
| 61 | async_sess_t *event_session;
|
|---|
| 62 | async_exch_t *event_exchange;
|
|---|
| 63 | ddf_dev_t *sb_dev;
|
|---|
| 64 | } sb_dsp_t;
|
|---|
| 65 |
|
|---|
| 66 | int sb_dsp_init(sb_dsp_t *dsp, sb16_regs_t *regs, ddf_dev_t *dev,
|
|---|
| 67 | int dma8, int dma16);
|
|---|
| 68 | void sb_dsp_interrupt(sb_dsp_t *dsp);
|
|---|
| 69 |
|
|---|
| 70 | int sb_dsp_get_buffer(sb_dsp_t *dsp, void **buffer, size_t *size, unsigned *id);
|
|---|
| 71 | int sb_dsp_set_event_session(sb_dsp_t *dsp, unsigned id, async_sess_t *session);
|
|---|
| 72 | int sb_dsp_release_buffer(sb_dsp_t *dsp, unsigned id);
|
|---|
| 73 | int sb_dsp_start_playback(sb_dsp_t *dsp, unsigned id, unsigned parts,
|
|---|
| 74 | unsigned channels, unsigned sample_rate, pcm_sample_format_t format);
|
|---|
| 75 | int sb_dsp_stop_playback(sb_dsp_t *dsp, unsigned id);
|
|---|
| 76 | int sb_dsp_start_record(sb_dsp_t *dsp, unsigned id, unsigned parts,
|
|---|
| 77 | unsigned channels, unsigned sample_rate, pcm_sample_format_t format);
|
|---|
| 78 | int sb_dsp_stop_record(sb_dsp_t *dsp, unsigned id);
|
|---|
| 79 |
|
|---|
| 80 | #endif
|
|---|
| 81 | /**
|
|---|
| 82 | * @}
|
|---|
| 83 | */
|
|---|
