aw2-saa7146.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*****************************************************************************
 3 *
 4 * Copyright (C) 2008 Cedric Bregardis <cedric.bregardis@free.fr> and
 5 * Jean-Christian Hassler <jhassler@free.fr>
 6 *
 7 * This file is part of the Audiowerk2 ALSA driver
 8 *
 9 *****************************************************************************/
10
11#ifndef AW2_SAA7146_H
12#define AW2_SAA7146_H
13
14#define NB_STREAM_PLAYBACK 2
15#define NB_STREAM_CAPTURE 1
16
17#define NUM_STREAM_PLAYBACK_ANA 0
18#define NUM_STREAM_PLAYBACK_DIG 1
19
20#define NUM_STREAM_CAPTURE_ANA 0
21
22struct snd_pcm_substream;
23typedef void (*snd_aw2_saa7146_it_cb) (struct snd_pcm_substream *);
24
25struct snd_aw2_saa7146_cb_param {
26	snd_aw2_saa7146_it_cb p_it_callback;
27	struct snd_pcm_substream *p_callback_param;
28};
29
30/* definition of the chip-specific record */
31
32struct snd_aw2_saa7146 {
33	void __iomem *base_addr;
34};
35
36extern void snd_aw2_saa7146_setup(struct snd_aw2_saa7146 *chip,
37				  void __iomem *pci_base_addr);
38extern int snd_aw2_saa7146_free(struct snd_aw2_saa7146 *chip);
39
40extern void snd_aw2_saa7146_pcm_init_playback(struct snd_aw2_saa7146 *chip,
41					      int stream_number,
42					      unsigned long dma_addr,
43					      unsigned long period_size,
44					      unsigned long buffer_size);
45extern void snd_aw2_saa7146_pcm_init_capture(struct snd_aw2_saa7146 *chip,
46					     int stream_number,
47					     unsigned long dma_addr,
48					     unsigned long period_size,
49					     unsigned long buffer_size);
50extern void snd_aw2_saa7146_define_it_playback_callback(unsigned int
51							stream_number,
52							snd_aw2_saa7146_it_cb
53							p_it_callback,
54							void *p_callback_param);
55extern void snd_aw2_saa7146_define_it_capture_callback(unsigned int
56						       stream_number,
57						       snd_aw2_saa7146_it_cb
58						       p_it_callback,
59						       void *p_callback_param);
60extern void snd_aw2_saa7146_pcm_trigger_start_capture(struct snd_aw2_saa7146
61						      *chip, int stream_number);
62extern void snd_aw2_saa7146_pcm_trigger_stop_capture(struct snd_aw2_saa7146
63						     *chip, int stream_number);
64
65extern void snd_aw2_saa7146_pcm_trigger_start_playback(struct snd_aw2_saa7146
66						       *chip,
67						       int stream_number);
68extern void snd_aw2_saa7146_pcm_trigger_stop_playback(struct snd_aw2_saa7146
69						      *chip, int stream_number);
70
71extern irqreturn_t snd_aw2_saa7146_interrupt(int irq, void *dev_id);
72extern unsigned int snd_aw2_saa7146_get_hw_ptr_playback(struct snd_aw2_saa7146
73							*chip,
74							int stream_number,
75							unsigned char
76							*start_addr,
77							unsigned int
78							buffer_size);
79extern unsigned int snd_aw2_saa7146_get_hw_ptr_capture(struct snd_aw2_saa7146
80						       *chip,
81						       int stream_number,
82						       unsigned char
83						       *start_addr,
84						       unsigned int
85						       buffer_size);
86
87extern void snd_aw2_saa7146_use_digital_input(struct snd_aw2_saa7146 *chip,
88					      int use_digital);
89
90extern int snd_aw2_saa7146_is_using_digital_input(struct snd_aw2_saa7146
91						  *chip);
92
93#endif