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
35 struct clk;
36 struct device;
37
38 struct snd_soc_component;
39 struct snd_soc_jack;
40
41 struct cs42l43;
42
43 struct 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
109 int cs42l43_sdw_add_peripheral(struct snd_pcm_substream *substream,
110 struct snd_pcm_hw_params *params,
111 struct snd_soc_dai *dai);
112 int cs42l43_sdw_remove_peripheral(struct snd_pcm_substream *substream,
113 struct snd_soc_dai *dai);
114 int cs42l43_sdw_set_stream(struct snd_soc_dai *dai, void *sdw_stream, int direction);
115
116 #else
117
cs42l43_sdw_add_peripheral(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)118 static 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
130 int cs42l43_set_jack(struct snd_soc_component *component,
131 struct snd_soc_jack *jack, void *d);
132 void cs42l43_bias_sense_timeout(struct work_struct *work);
133 void cs42l43_tip_sense_work(struct work_struct *work);
134 void cs42l43_button_press_work(struct work_struct *work);
135 void cs42l43_button_release_work(struct work_struct *work);
136 irqreturn_t cs42l43_bias_detect_clamp(int irq, void *data);
137 irqreturn_t cs42l43_button_press(int irq, void *data);
138 irqreturn_t cs42l43_button_release(int irq, void *data);
139 irqreturn_t cs42l43_tip_sense(int irq, void *data);
140 int cs42l43_jack_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
141 int cs42l43_jack_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
142
143 extern const struct soc_enum cs42l43_jack_enum;
144
145 #endif /* CS42L43_ASOC_INT_H */
146