mirror of https://gitee.com/openkylin/linux.git
64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
/*
|
|
* Common functionality for the alsa driver code base for HD Audio.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the Free
|
|
* Software Foundation; either version 2 of the License, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*/
|
|
|
|
#ifndef __SOUND_HDA_CONTROLLER_H
|
|
#define __SOUND_HDA_CONTROLLER_H
|
|
|
|
#include <sound/core.h>
|
|
#include <sound/initval.h>
|
|
#include "hda_codec.h"
|
|
#include "hda_priv.h"
|
|
|
|
/* PCM setup */
|
|
int azx_attach_pcm_stream(struct hda_bus *bus, struct hda_codec *codec,
|
|
struct hda_pcm *cpcm);
|
|
static inline struct azx_dev *get_azx_dev(struct snd_pcm_substream *substream)
|
|
{
|
|
return substream->runtime->private_data;
|
|
}
|
|
unsigned int azx_get_position(struct azx *chip,
|
|
struct azx_dev *azx_dev,
|
|
bool with_check);
|
|
|
|
/* Stream control. */
|
|
void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev);
|
|
|
|
#ifdef CONFIG_SND_HDA_DSP_LOADER
|
|
int azx_load_dsp_prepare(struct hda_bus *bus, unsigned int format,
|
|
unsigned int byte_size,
|
|
struct snd_dma_buffer *bufp);
|
|
void azx_load_dsp_trigger(struct hda_bus *bus, bool start);
|
|
void azx_load_dsp_cleanup(struct hda_bus *bus,
|
|
struct snd_dma_buffer *dmab);
|
|
#endif
|
|
|
|
/* Allocation functions. */
|
|
int azx_alloc_stream_pages(struct azx *chip);
|
|
void azx_free_stream_pages(struct azx *chip);
|
|
|
|
/*
|
|
* CORB / RIRB interface
|
|
*/
|
|
int azx_send_cmd(struct hda_bus *bus, unsigned int val);
|
|
unsigned int azx_get_response(struct hda_bus *bus,
|
|
unsigned int addr);
|
|
|
|
/* Low level azx interface */
|
|
void azx_init_chip(struct azx *chip, int full_reset);
|
|
void azx_stop_chip(struct azx *chip);
|
|
void azx_enter_link_reset(struct azx *chip);
|
|
irqreturn_t azx_interrupt(int irq, void *dev_id);
|
|
|
|
#endif /* __SOUND_HDA_CONTROLLER_H */
|