1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Load firmware files from Analog Devices SigmaStudio
4 *
5 * Copyright 2009-2011 Analog Devices Inc.
6 */
7
8#ifndef __SIGMA_FIRMWARE_H__
9#define __SIGMA_FIRMWARE_H__
10
11#include <linux/device.h>
12#include <linux/regmap.h>
13#include <linux/list.h>
14
15#include <sound/pcm.h>
16
17struct sigmadsp;
18struct snd_soc_component;
19struct snd_pcm_substream;
20
21struct sigmadsp_ops {
22 int (*safeload)(struct sigmadsp *sigmadsp, unsigned int addr,
23 const uint8_t *data, size_t len);
24};
25
26struct sigmadsp {
27 const struct sigmadsp_ops *ops;
28
29 struct list_head ctrl_list;
30 struct list_head data_list;
31
32 struct snd_pcm_hw_constraint_list rate_constraints;
33
34 unsigned int current_samplerate;
35 struct snd_soc_component *component;
36 struct device *dev;
37
38 struct mutex lock;
39
40 void *control_data;
41 int (*write)(void *, unsigned int, const uint8_t *, size_t);
42 int (*read)(void *, unsigned int, uint8_t *, size_t);
43};
44
45struct sigmadsp *devm_sigmadsp_init(struct device *dev,
46 const struct sigmadsp_ops *ops, const char *firmware_name);
47
48int sigmadsp_restrict_params(struct sigmadsp *sigmadsp,
49 struct snd_pcm_substream *substream);
50
51struct i2c_client;
52
53struct sigmadsp *devm_sigmadsp_init_regmap(struct device *dev,
54 struct regmap *regmap, const struct sigmadsp_ops *ops,
55 const char *firmware_name);
56struct sigmadsp *devm_sigmadsp_init_i2c(struct i2c_client *client,
57 const struct sigmadsp_ops *ops, const char *firmware_name);
58
59int sigmadsp_attach(struct sigmadsp *sigmadsp,
60 struct snd_soc_component *component);
61int sigmadsp_setup(struct sigmadsp *sigmadsp, unsigned int samplerate);
62void sigmadsp_reset(struct sigmadsp *sigmadsp);
63
64#endif
65

source code of linux/sound/soc/codecs/sigmadsp.h