1/* SPDX-License-Identifier: GPL-2.0 */
  2/*
  3 * CS42L43 CODEC driver internal data
  4 *
  5 * Copyright (C) 2022-2023 Cirrus Logic, Inc. and
  6 *                         Cirrus Logic International Semiconductor Ltd.
  7 */
  8
  9#ifndef CS42L43_ASOC_INT_H
 10#define CS42L43_ASOC_INT_H
 11
 12#include <linux/completion.h>
 13#include <linux/mutex.h>
 14#include <linux/types.h>
 15#include <linux/workqueue.h>
 16#include <sound/pcm.h>
 17
 18#define CS42L43_INTERNAL_SYSCLK		24576000
 19#define CS42L43_DEFAULT_SLOTS		0x3F
 20
 21#define CS42L43_PLL_TIMEOUT_MS		200
 22#define CS42L43_SPK_TIMEOUT_MS		100
 23#define CS42L43_HP_TIMEOUT_MS		2000
 24#define CS42L43_LOAD_TIMEOUT_MS		1000
 25
 26#define CS42L43_HP_ILIMIT_BACKOFF_MS	1000
 27#define CS42L43_HP_ILIMIT_DECAY_MS	300
 28#define CS42L43_HP_ILIMIT_MAX_COUNT	4
 29
 30#define CS42L43_ASP_MAX_CHANNELS	6
 31#define CS42L43_N_EQ_COEFFS		15
 32
 33#define CS42L43_N_BUTTONS	6
 34
 35struct clk;
 36struct device;
 37
 38struct snd_soc_component;
 39struct snd_soc_jack;
 40
 41struct cs42l43;
 42
 43struct cs42l43_codec {
 44	struct device *dev;
 45	struct cs42l43 *core;
 46	struct snd_soc_component *component;
 47
 48	struct clk *mclk;
 49
 50	int n_slots;
 51	int slot_width;
 52	int tx_slots[CS42L43_ASP_MAX_CHANNELS];
 53	int rx_slots[CS42L43_ASP_MAX_CHANNELS];
 54	struct snd_pcm_hw_constraint_list constraint;
 55
 56	u32 eq_coeffs[CS42L43_N_EQ_COEFFS];
 57
 58	unsigned int refclk_src;
 59	unsigned int refclk_freq;
 60	struct completion pll_ready;
 61
 62	unsigned int decim_cache[4];
 63	unsigned int adc_ena;
 64	unsigned int hp_ena;
 65
 66	struct completion hp_startup;
 67	struct completion hp_shutdown;
 68	struct completion spkr_shutdown;
 69	struct completion spkl_shutdown;
 70	struct completion spkr_startup;
 71	struct completion spkl_startup;
 72	// Lock to ensure speaker VU updates don't clash
 73	struct mutex spk_vu_lock;
 74
 75	// Lock for all jack detect operations
 76	struct mutex jack_lock;
 77	struct snd_soc_jack *jack_hp;
 78
 79	bool use_ring_sense;
 80	unsigned int tip_debounce_ms;
 81	unsigned int bias_low;
 82	unsigned int bias_sense_ua;
 83	unsigned int bias_ramp_ms;
 84	unsigned int detect_us;
 85	unsigned int buttons[CS42L43_N_BUTTONS];
 86
 87	struct delayed_work tip_sense_work;
 88	struct delayed_work bias_sense_timeout;
 89	struct delayed_work button_press_work;
 90	struct work_struct button_release_work;
 91	struct completion type_detect;
 92	struct completion load_detect;
 93
 94	bool load_detect_running;
 95	bool button_detect_running;
 96	bool jack_present;
 97	int jack_override;
 98
 99	struct work_struct hp_ilimit_work;
100	struct delayed_work hp_ilimit_clear_work;
101	bool hp_ilimited;
102	int hp_ilimit_count;
103
104	struct snd_kcontrol *kctl[5];
105};
106
107#if IS_REACHABLE(CONFIG_SND_SOC_CS42L43_SDW)
108
109int cs42l43_sdw_add_peripheral(struct snd_pcm_substream *substream,
110			       struct snd_pcm_hw_params *params,
111			       struct snd_soc_dai *dai);
112int cs42l43_sdw_remove_peripheral(struct snd_pcm_substream *substream,
113				  struct snd_soc_dai *dai);
114int cs42l43_sdw_set_stream(struct snd_soc_dai *dai, void *sdw_stream, int direction);
115
116#else
117
118static inline int cs42l43_sdw_add_peripheral(struct snd_pcm_substream *substream,
119					     struct snd_pcm_hw_params *params,
120					     struct snd_soc_dai *dai)
121{
122	return -EINVAL;
123}
124
125#define cs42l43_sdw_remove_peripheral NULL
126#define cs42l43_sdw_set_stream NULL
127
128#endif
129
130int cs42l43_set_jack(struct snd_soc_component *component,
131		     struct snd_soc_jack *jack, void *d);
132void cs42l43_bias_sense_timeout(struct work_struct *work);
133void cs42l43_tip_sense_work(struct work_struct *work);
134void cs42l43_button_press_work(struct work_struct *work);
135void cs42l43_button_release_work(struct work_struct *work);
136irqreturn_t cs42l43_bias_detect_clamp(int irq, void *data);
137irqreturn_t cs42l43_button_press(int irq, void *data);
138irqreturn_t cs42l43_button_release(int irq, void *data);
139irqreturn_t cs42l43_tip_sense(int irq, void *data);
140int cs42l43_jack_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
141int cs42l43_jack_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
142
143extern const struct soc_enum cs42l43_jack_enum;
144
145#endif /* CS42L43_ASOC_INT_H */