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
36 struct 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
95 int cs42l43_sdw_add_peripheral(struct snd_pcm_substream *substream,
96 struct snd_pcm_hw_params *params,
97 struct snd_soc_dai *dai);
98 int cs42l43_sdw_remove_peripheral(struct snd_pcm_substream *substream,
99 struct snd_soc_dai *dai);
100 int cs42l43_sdw_set_stream(struct snd_soc_dai *dai, void *sdw_stream, int direction);
101
102 #else
103
cs42l43_sdw_add_peripheral(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)104 static 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
116 int cs42l43_set_jack(struct snd_soc_component *component,
117 struct snd_soc_jack *jack, void *d);
118 void cs42l43_bias_sense_timeout(struct work_struct *work);
119 void cs42l43_tip_sense_work(struct work_struct *work);
120 void cs42l43_button_press_work(struct work_struct *work);
121 void cs42l43_button_release_work(struct work_struct *work);
122 irqreturn_t cs42l43_bias_detect_clamp(int irq, void *data);
123 irqreturn_t cs42l43_button_press(int irq, void *data);
124 irqreturn_t cs42l43_button_release(int irq, void *data);
125 irqreturn_t cs42l43_tip_sense(int irq, void *data);
126 int cs42l43_jack_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
127 int cs42l43_jack_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol);
128
129 extern const struct soc_enum cs42l43_jack_enum;
130
131 #endif /* CS42L43_ASOC_INT_H */
132