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