1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (C) 2021 MediaTek Inc.
4  * Author: Argus Lin <argus.lin@mediatek.com>
5  */
6 
7 #ifndef _ACCDET_H_
8 #define _ACCDET_H_
9 
10 #include <linux/ctype.h>
11 #include <linux/string.h>
12 
13 #define ACCDET_DEVNAME "accdet"
14 
15 #define HEADSET_MODE_1		(1)
16 #define HEADSET_MODE_2		(2)
17 #define HEADSET_MODE_6		(6)
18 
19 #define MT6359_ACCDET_NUM_BUTTONS 4
20 #define MT6359_ACCDET_JACK_MASK (SND_JACK_HEADPHONE | \
21 				SND_JACK_HEADSET | \
22 				SND_JACK_BTN_0 | \
23 				SND_JACK_BTN_1 | \
24 				SND_JACK_BTN_2 | \
25 				SND_JACK_BTN_3)
26 #define MT6359_ACCDET_BTN_MASK (SND_JACK_BTN_0 | \
27 				SND_JACK_BTN_1 | \
28 				SND_JACK_BTN_2 | \
29 				SND_JACK_BTN_3)
30 
31 enum eint_moisture_status {
32 	M_PLUG_IN =		0,
33 	M_WATER_IN =		1,
34 	M_HP_PLUG_IN =		2,
35 	M_PLUG_OUT =		3,
36 	M_NO_ACT =		4,
37 	M_UNKNOWN =		5,
38 };
39 
40 enum {
41 	accdet_state000 = 0,
42 	accdet_state001,
43 	accdet_state010,
44 	accdet_state011,
45 	accdet_auxadc,
46 	eint_state000,
47 	eint_state001,
48 	eint_state010,
49 	eint_state011,
50 	eint_inverter_state000,
51 };
52 
53 struct three_key_threshold {
54 	unsigned int mid;
55 	unsigned int up;
56 	unsigned int down;
57 };
58 
59 struct four_key_threshold {
60 	unsigned int mid;
61 	unsigned int voice;
62 	unsigned int up;
63 	unsigned int down;
64 };
65 
66 struct pwm_deb_settings {
67 	unsigned int pwm_width;
68 	unsigned int pwm_thresh;
69 	unsigned int fall_delay;
70 	unsigned int rise_delay;
71 	unsigned int debounce0;
72 	unsigned int debounce1;
73 	unsigned int debounce3;
74 	unsigned int debounce4;
75 	unsigned int eint_pwm_width;
76 	unsigned int eint_pwm_thresh;
77 	unsigned int eint_debounce0;
78 	unsigned int eint_debounce1;
79 	unsigned int eint_debounce2;
80 	unsigned int eint_debounce3;
81 	unsigned int eint_inverter_debounce;
82 
83 };
84 
85 struct dts_data {
86 	unsigned int mic_vol;
87 	unsigned int mic_mode;
88 	unsigned int plugout_deb;
89 	unsigned int eint_pol;
90 	struct pwm_deb_settings *pwm_deb;
91 	struct three_key_threshold three_key;
92 	struct four_key_threshold four_key;
93 	unsigned int moisture_detect_enable;
94 	unsigned int eint_detect_mode;
95 	unsigned int eint_use_ext_res;
96 	unsigned int eint_comp_vth;
97 	unsigned int moisture_detect_mode;
98 	unsigned int moisture_comp_vth;
99 	unsigned int moisture_comp_vref2;
100 	unsigned int moisture_use_ext_res;
101 };
102 
103 struct mt6359_accdet {
104 	struct snd_soc_jack *jack;
105 	struct device *dev;
106 	struct regmap *regmap;
107 	struct dts_data *data;
108 	unsigned int caps;
109 	int accdet_irq;
110 	int accdet_eint0;
111 	int accdet_eint1;
112 	struct mutex res_lock; /* lock protection */
113 	bool jack_plugged;
114 	unsigned int jack_type;
115 	unsigned int btn_type;
116 	unsigned int accdet_status;
117 	unsigned int pre_accdet_status;
118 	unsigned int cali_voltage;
119 	unsigned int jd_sts;
120 	struct work_struct accdet_work;
121 	struct workqueue_struct *accdet_workqueue;
122 	struct work_struct jd_work;
123 	struct workqueue_struct *jd_workqueue;
124 };
125 
126 int mt6359_accdet_enable_jack_detect(struct snd_soc_component *component,
127 				     struct snd_soc_jack *jack);
128 #endif
129