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
22 struct snd_pcm_substream;
23 typedef void (*snd_aw2_saa7146_it_cb) (struct snd_pcm_substream *);
24
25 struct 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
32 struct snd_aw2_saa7146 {
33 void __iomem *base_addr;
34 };
35
36 extern void snd_aw2_saa7146_setup(struct snd_aw2_saa7146 *chip,
37 void __iomem *pci_base_addr);
38 extern int snd_aw2_saa7146_free(struct snd_aw2_saa7146 *chip);
39
40 extern 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);
45 extern 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);
50 extern 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);
55 extern 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);
60 extern void snd_aw2_saa7146_pcm_trigger_start_capture(struct snd_aw2_saa7146
61 *chip, int stream_number);
62 extern void snd_aw2_saa7146_pcm_trigger_stop_capture(struct snd_aw2_saa7146
63 *chip, int stream_number);
64
65 extern void snd_aw2_saa7146_pcm_trigger_start_playback(struct snd_aw2_saa7146
66 *chip,
67 int stream_number);
68 extern void snd_aw2_saa7146_pcm_trigger_stop_playback(struct snd_aw2_saa7146
69 *chip, int stream_number);
70
71 extern irqreturn_t snd_aw2_saa7146_interrupt(int irq, void *dev_id);
72 extern 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);
79 extern 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
87 extern void snd_aw2_saa7146_use_digital_input(struct snd_aw2_saa7146 *chip,
88 int use_digital);
89
90 extern int snd_aw2_saa7146_is_using_digital_input(struct snd_aw2_saa7146
91 *chip);
92
93 #endif
94
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