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/*
* 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
*/
void azx_update_rirb(struct azx *chip);
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);
#endif /* __SOUND_HDA_CONTROLLER_H */
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