1/*****************************************************************************
2 *
3 * Copyright (C) 2008 Cedric Bregardis <cedric.bregardis@free.fr> and
4 * Jean-Christian Hassler <jhassler@free.fr>
5 *
6 * This file is part of the Audiowerk2 ALSA driver
7 *
8 * The Audiowerk2 ALSA driver is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; version 2.
11 *
12 * The Audiowerk2 ALSA driver is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with the Audiowerk2 ALSA driver; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
20 * USA.
21 *
22 *****************************************************************************/
23
24#ifndef AW2_SAA7146_H
25#define AW2_SAA7146_H
26
27#define NB_STREAM_PLAYBACK 2
28#define NB_STREAM_CAPTURE 1
29
30#define NUM_STREAM_PLAYBACK_ANA 0
31#define NUM_STREAM_PLAYBACK_DIG 1
32
33#define NUM_STREAM_CAPTURE_ANA 0
34
35typedef void (*snd_aw2_saa7146_it_cb) (void *);
36
37struct snd_aw2_saa7146_cb_param {
38	snd_aw2_saa7146_it_cb p_it_callback;
39	void *p_callback_param;
40};
41
42/* definition of the chip-specific record */
43
44struct snd_aw2_saa7146 {
45	void __iomem *base_addr;
46};
47
48extern void snd_aw2_saa7146_setup(struct snd_aw2_saa7146 *chip,
49				  void __iomem *pci_base_addr);
50extern int snd_aw2_saa7146_free(struct snd_aw2_saa7146 *chip);
51
52extern void snd_aw2_saa7146_pcm_init_playback(struct snd_aw2_saa7146 *chip,
53					      int stream_number,
54					      unsigned long dma_addr,
55					      unsigned long period_size,
56					      unsigned long buffer_size);
57extern void snd_aw2_saa7146_pcm_init_capture(struct snd_aw2_saa7146 *chip,
58					     int stream_number,
59					     unsigned long dma_addr,
60					     unsigned long period_size,
61					     unsigned long buffer_size);
62extern void snd_aw2_saa7146_define_it_playback_callback(unsigned int
63							stream_number,
64							snd_aw2_saa7146_it_cb
65							p_it_callback,
66							void *p_callback_param);
67extern void snd_aw2_saa7146_define_it_capture_callback(unsigned int
68						       stream_number,
69						       snd_aw2_saa7146_it_cb
70						       p_it_callback,
71						       void *p_callback_param);
72extern void snd_aw2_saa7146_pcm_trigger_start_capture(struct snd_aw2_saa7146
73						      *chip, int stream_number);
74extern void snd_aw2_saa7146_pcm_trigger_stop_capture(struct snd_aw2_saa7146
75						     *chip, int stream_number);
76
77extern void snd_aw2_saa7146_pcm_trigger_start_playback(struct snd_aw2_saa7146
78						       *chip,
79						       int stream_number);
80extern void snd_aw2_saa7146_pcm_trigger_stop_playback(struct snd_aw2_saa7146
81						      *chip, int stream_number);
82
83extern irqreturn_t snd_aw2_saa7146_interrupt(int irq, void *dev_id);
84extern unsigned int snd_aw2_saa7146_get_hw_ptr_playback(struct snd_aw2_saa7146
85							*chip,
86							int stream_number,
87							unsigned char
88							*start_addr,
89							unsigned int
90							buffer_size);
91extern unsigned int snd_aw2_saa7146_get_hw_ptr_capture(struct snd_aw2_saa7146
92						       *chip,
93						       int stream_number,
94						       unsigned char
95						       *start_addr,
96						       unsigned int
97						       buffer_size);
98
99extern void snd_aw2_saa7146_use_digital_input(struct snd_aw2_saa7146 *chip,
100					      int use_digital);
101
102extern int snd_aw2_saa7146_is_using_digital_input(struct snd_aw2_saa7146
103						  *chip);
104
105#endif
106