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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/sound/pci/aw2/aw2-saa7146.h
26442 views
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/* SPDX-License-Identifier: GPL-2.0-only */

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/*****************************************************************************

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 *

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 * Copyright (C) 2008 Cedric Bregardis <[email protected]> and

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 * Jean-Christian Hassler <[email protected]>

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 *

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 * This file is part of the Audiowerk2 ALSA driver

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 *

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 *****************************************************************************/

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#ifndef AW2_SAA7146_H

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#define AW2_SAA7146_H

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#define NB_STREAM_PLAYBACK 2

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#define NB_STREAM_CAPTURE 1

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#define NUM_STREAM_PLAYBACK_ANA 0

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#define NUM_STREAM_PLAYBACK_DIG 1

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#define NUM_STREAM_CAPTURE_ANA 0

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struct snd_pcm_substream;

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typedef void (*snd_aw2_saa7146_it_cb) (struct snd_pcm_substream *);

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struct snd_aw2_saa7146_cb_param {

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	snd_aw2_saa7146_it_cb p_it_callback;

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	struct snd_pcm_substream *p_callback_param;

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};

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/* definition of the chip-specific record */

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struct snd_aw2_saa7146 {

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	void __iomem *base_addr;

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};

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extern void snd_aw2_saa7146_setup(struct snd_aw2_saa7146 *chip,

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				  void __iomem *pci_base_addr);

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extern int snd_aw2_saa7146_free(struct snd_aw2_saa7146 *chip);

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extern void snd_aw2_saa7146_pcm_init_playback(struct snd_aw2_saa7146 *chip,

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					      int stream_number,

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					      unsigned long dma_addr,

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					      unsigned long period_size,

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					      unsigned long buffer_size);

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extern void snd_aw2_saa7146_pcm_init_capture(struct snd_aw2_saa7146 *chip,

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					     int stream_number,

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					     unsigned long dma_addr,

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					     unsigned long period_size,

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					     unsigned long buffer_size);

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extern void snd_aw2_saa7146_define_it_playback_callback(unsigned int

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							stream_number,

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							snd_aw2_saa7146_it_cb

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							p_it_callback,

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							void *p_callback_param);

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extern void snd_aw2_saa7146_define_it_capture_callback(unsigned int

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						       stream_number,

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						       snd_aw2_saa7146_it_cb

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						       p_it_callback,

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						       void *p_callback_param);

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extern void snd_aw2_saa7146_pcm_trigger_start_capture(struct snd_aw2_saa7146

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						      *chip, int stream_number);

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extern void snd_aw2_saa7146_pcm_trigger_stop_capture(struct snd_aw2_saa7146

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						     *chip, int stream_number);

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extern void snd_aw2_saa7146_pcm_trigger_start_playback(struct snd_aw2_saa7146

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						       *chip,

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						       int stream_number);

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extern void snd_aw2_saa7146_pcm_trigger_stop_playback(struct snd_aw2_saa7146

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						      *chip, int stream_number);

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extern irqreturn_t snd_aw2_saa7146_interrupt(int irq, void *dev_id);

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extern unsigned int snd_aw2_saa7146_get_hw_ptr_playback(struct snd_aw2_saa7146

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							*chip,

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							int stream_number,

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							unsigned char

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							*start_addr,

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							unsigned int

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							buffer_size);

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extern unsigned int snd_aw2_saa7146_get_hw_ptr_capture(struct snd_aw2_saa7146

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						       *chip,

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						       int stream_number,

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						       unsigned char

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						       *start_addr,

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						       unsigned int

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						       buffer_size);

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extern void snd_aw2_saa7146_use_digital_input(struct snd_aw2_saa7146 *chip,

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					      int use_digital);

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extern int snd_aw2_saa7146_is_using_digital_input(struct snd_aw2_saa7146

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						  *chip);

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#endif

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