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 | |
27 | struct 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 | |
60 | extern const struct regmap_range_cfg cs42l42_page_range; |
61 | extern const struct regmap_config cs42l42_regmap; |
62 | extern const struct snd_soc_component_driver cs42l42_soc_component; |
63 | extern struct snd_soc_dai_driver cs42l42_dai; |
64 | |
65 | bool cs42l42_readable_register(struct device *dev, unsigned int reg); |
66 | bool cs42l42_volatile_register(struct device *dev, unsigned int reg); |
67 | |
68 | int cs42l42_pll_config(struct snd_soc_component *component, |
69 | unsigned int clk, unsigned int sample_rate); |
70 | void cs42l42_src_config(struct snd_soc_component *component, unsigned int sample_rate); |
71 | int cs42l42_mute_stream(struct snd_soc_dai *dai, int mute, int stream); |
72 | irqreturn_t cs42l42_irq_thread(int irq, void *data); |
73 | int cs42l42_suspend(struct device *dev); |
74 | int cs42l42_resume(struct device *dev); |
75 | void cs42l42_resume_restore(struct device *dev); |
76 | int cs42l42_common_probe(struct cs42l42_private *cs42l42, |
77 | const struct snd_soc_component_driver *component_drv, |
78 | struct snd_soc_dai_driver *dai); |
79 | int cs42l42_init(struct cs42l42_private *cs42l42); |
80 | void cs42l42_common_remove(struct cs42l42_private *cs42l42); |
81 | |
82 | #endif /* __CS42L42_H__ */ |
83 | |