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