1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * cs42l42.h -- CS42L42 ALSA SoC audio driver header
4 *
5 * Copyright 2016-2022 Cirrus Logic, Inc.
6 *
7 * Author: James Schulman <james.schulman@cirrus.com>
8 * Author: Brian Austin <brian.austin@cirrus.com>
9 * Author: Michael White <michael.white@cirrus.com>
10 */
11
12#ifndef __CS42L42_H__
13#define __CS42L42_H__
14
15#include <dt-bindings/sound/cs42l42.h>
16#include <linux/device.h>
17#include <linux/gpio/consumer.h>
18#include <linux/mutex.h>
19#include <linux/regmap.h>
20#include <linux/regulator/consumer.h>
21#include <linux/soundwire/sdw.h>
22#include <sound/jack.h>
23#include <sound/cs42l42.h>
24#include <sound/soc-component.h>
25#include <sound/soc-dai.h>
26
27struct  cs42l42_private {
28	struct regmap *regmap;
29	struct device *dev;
30	struct regulator_bulk_data supplies[CS42L42_NUM_SUPPLIES];
31	struct gpio_desc *reset_gpio;
32	struct completion pdn_done;
33	struct snd_soc_jack *jack;
34	struct sdw_slave *sdw_peripheral;
35	struct mutex irq_lock;
36	int devid;
37	int irq;
38	int pll_config;
39	u32 sclk;
40	u32 sample_rate;
41	u32 bclk_ratio;
42	u8 plug_state;
43	u8 hs_type;
44	u8 ts_inv;
45	u8 ts_dbnc_rise;
46	u8 ts_dbnc_fall;
47	u8 btn_det_init_dbnce;
48	u8 btn_det_event_dbnce;
49	u8 bias_thresholds[CS42L42_NUM_BIASES];
50	u8 hs_bias_ramp_rate;
51	u8 hs_bias_ramp_time;
52	u8 hs_bias_sense_en;
53	u8 stream_use;
54	bool hp_adc_up_pending;
55	bool suspended;
56	bool sdw_waiting_first_unattach;
57	bool init_done;
58};
59
60extern const struct regmap_range_cfg cs42l42_page_range;
61extern const struct regmap_config cs42l42_regmap;
62extern const struct snd_soc_component_driver cs42l42_soc_component;
63extern struct snd_soc_dai_driver cs42l42_dai;
64
65bool cs42l42_readable_register(struct device *dev, unsigned int reg);
66bool cs42l42_volatile_register(struct device *dev, unsigned int reg);
67
68int cs42l42_pll_config(struct snd_soc_component *component,
69		       unsigned int clk, unsigned int sample_rate);
70void cs42l42_src_config(struct snd_soc_component *component, unsigned int sample_rate);
71int cs42l42_mute_stream(struct snd_soc_dai *dai, int mute, int stream);
72irqreturn_t cs42l42_irq_thread(int irq, void *data);
73int cs42l42_suspend(struct device *dev);
74int cs42l42_resume(struct device *dev);
75void cs42l42_resume_restore(struct device *dev);
76int cs42l42_common_probe(struct cs42l42_private *cs42l42,
77			 const struct snd_soc_component_driver *component_drv,
78			 struct snd_soc_dai_driver *dai);
79int cs42l42_init(struct cs42l42_private *cs42l42);
80void cs42l42_common_remove(struct cs42l42_private *cs42l42);
81
82#endif /* __CS42L42_H__ */
83