aw2-saa7146.h
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/*****************************************************************************
*
* Copyright (C) 2008 Cedric Bregardis <cedric.bregardis@free.fr> and
* Jean-Christian Hassler <jhassler@free.fr>
*
* This file is part of the Audiowerk2 ALSA driver
*
* The Audiowerk2 ALSA driver 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; version 2.
*
* The Audiowerk2 ALSA driver 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.
*
* You should have received a copy of the GNU General Public License
* along with the Audiowerk2 ALSA driver; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
*****************************************************************************/
#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
typedef void (*snd_aw2_saa7146_it_cb) (void *);
struct snd_aw2_saa7146_cb_param {
snd_aw2_saa7146_it_cb p_it_callback;
void *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