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
105#if IS_REACHABLE(CONFIG_SND_SOC_CS42L43_SDW)
106
107int cs42l43_sdw_add_peripheral(struct snd_pcm_substream *substream,
108			       struct snd_pcm_hw_params *params,
109			       struct snd_soc_dai *dai);
110int cs42l43_sdw_remove_peripheral(struct snd_pcm_substream *substream,
111				  struct snd_soc_dai *dai);
112int cs42l43_sdw_set_stream(struct snd_soc_dai *dai, void *sdw_stream, int direction);
113
114#else
115
116static inline int cs42l43_sdw_add_peripheral(struct snd_pcm_substream *substream,
117					     struct snd_pcm_hw_params *params,
118					     struct snd_soc_dai *dai)
119{
120	return -EINVAL;
121}
122
123#define cs42l43_sdw_remove_peripheral NULL
124#define cs42l43_sdw_set_stream NULL
125
126#endif
127
128int cs42l43_set_jack(struct snd_soc_component *component,
129		     struct snd_soc_jack *jack, void *d);
130void cs42l43_bias_sense_timeout(struct work_struct *work);
131void cs42l43_tip_sense_work(struct work_struct *work);
132void cs42l43_button_press_work(struct work_struct *work);
133void cs42l43_button_release_work(struct work_struct *work);
134irqreturn_t cs42l43_bias_detect_clamp(int irq, void *data);
135irqreturn_t cs42l43_button_press(int irq, void *data);
136irqreturn_t cs42l43_button_release(int irq, void *data);
137irqreturn_t cs42l43_tip_sense(int irq, void *data);
138int cs42l43_jack_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
139int cs42l43_jack_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
140
141extern const struct soc_enum cs42l43_jack_enum;
142
143#endif /* CS42L43_ASOC_INT_H */
144