/* SPDX-License-Identifier: GPL-2.0-only */
/*****************************************************************************
*
* Copyright (C) 2008 Cedric Bregardis <[email protected]> and
* Jean-Christian Hassler <[email protected]>
*
* This file is part of the Audiowerk2 ALSA driver
*
*****************************************************************************/
#ifndef AW2_SAA7146_H
#define AW2_SAA7146_H
#define NB_STREAM_PLAYBACK 2
#define NB_STREAM_CAPTURE 1
#define NUM_STREAM_PLAYBACK_ANA 0
#define NUM_STREAM_PLAYBACK_DIG 1
#define NUM_STREAM_CAPTURE_ANA 0
struct snd_pcm_substream;
typedef void (*snd_aw2_saa7146_it_cb) (struct snd_pcm_substream *);
struct snd_aw2_saa7146_cb_param {
snd_aw2_saa7146_it_cb p_it_callback;
struct snd_pcm_substream *p_callback_param;
};
/* definition of the chip-specific record */
struct snd_aw2_saa7146 {
void __iomem *base_addr;
};
extern void snd_aw2_saa7146_setup(struct snd_aw2_saa7146 *chip,
void __iomem *pci_base_addr);
extern int snd_aw2_saa7146_free(struct snd_aw2_saa7146 *chip);
extern void snd_aw2_saa7146_pcm_init_playback(struct snd_aw2_saa7146 *chip,
int stream_number,
unsigned long dma_addr,
unsigned long period_size,
unsigned long buffer_size);
extern void snd_aw2_saa7146_pcm_init_capture(struct snd_aw2_saa7146 *chip,
int stream_number,
unsigned long dma_addr,
unsigned long period_size,
unsigned long buffer_size);
extern void snd_aw2_saa7146_define_it_playback_callback(unsigned int
stream_number,
snd_aw2_saa7146_it_cb
p_it_callback,
void *p_callback_param);
extern void snd_aw2_saa7146_define_it_capture_callback(unsigned int
stream_number,
snd_aw2_saa7146_it_cb
p_it_callback,
void *p_callback_param);
extern void snd_aw2_saa7146_pcm_trigger_start_capture(struct snd_aw2_saa7146
*chip, int stream_number);
extern void snd_aw2_saa7146_pcm_trigger_stop_capture(struct snd_aw2_saa7146
*chip, int stream_number);
extern void snd_aw2_saa7146_pcm_trigger_start_playback(struct snd_aw2_saa7146
*chip,
int stream_number);
extern void snd_aw2_saa7146_pcm_trigger_stop_playback(struct snd_aw2_saa7146
*chip, int stream_number);
extern irqreturn_t snd_aw2_saa7146_interrupt(int irq, void *dev_id);
extern unsigned int snd_aw2_saa7146_get_hw_ptr_playback(struct snd_aw2_saa7146
*chip,
int stream_number,
unsigned char
*start_addr,
unsigned int
buffer_size);
extern unsigned int snd_aw2_saa7146_get_hw_ptr_capture(struct snd_aw2_saa7146
*chip,
int stream_number,
unsigned char
*start_addr,
unsigned int
buffer_size);
extern void snd_aw2_saa7146_use_digital_input(struct snd_aw2_saa7146 *chip,
int use_digital);
extern int snd_aw2_saa7146_is_using_digital_input(struct snd_aw2_saa7146
*chip);
#endif
Codebase Browser
linux