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