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gerrit-public.fairphone.software / kernel / msm / ad1d390a478ddf19ebb60834bd0e907fc43aee20 / . / include / linux / pmic8058-othc.h
blob: bd96c3fbf0b6fb531c3728a19bbb4e363d0e1fff [file] [log] [blame]
Duy Truong790f06d2013-02-13 16:38:12 -0800[diff] [blame]1/* Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
Bryan Huntsman3f2bc4d2011-08-16 17:27:22 -0700[diff] [blame]2 *
3 * This program is free software; you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License version 2 and
5 * only version 2 as published by the Free Software Foundation.
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
11 *
12 */
13
14#ifndef __PMIC8058_OTHC_H__
15#define __PMIC8058_OTHC_H__
16
17/* Accessory detecion flags */
18#define OTHC_MICBIAS_DETECT BIT(0)
19#define OTHC_GPIO_DETECT BIT(1)
20#define OTHC_SWITCH_DETECT BIT(2)
21#define OTHC_ADC_DETECT BIT(3)
22
23enum othc_accessory_type {
24 OTHC_NO_DEVICE = 0,
25 OTHC_HEADSET = 1 << 0,
26 OTHC_HEADPHONE = 1 << 1,
27 OTHC_MICROPHONE = 1 << 2,
28 OTHC_ANC_HEADSET = 1 << 3,
29 OTHC_ANC_HEADPHONE = 1 << 4,
30 OTHC_ANC_MICROPHONE = 1 << 5,
31 OTHC_SVIDEO_OUT = 1 << 6,
32};
33
34struct accessory_adc_thres {
35 int min_threshold;
36 int max_threshold;
37};
38
39struct othc_accessory_info {
40 unsigned int accessory;
41 unsigned int detect_flags;
42 unsigned int gpio;
43 unsigned int active_low;
44 unsigned int key_code;
45 bool enabled;
46 struct accessory_adc_thres adc_thres;
47};
48
49enum othc_headset_type {
50 OTHC_HEADSET_NO,
51 OTHC_HEADSET_NC,
52};
53
54struct othc_regulator_config {
55 const char *regulator;
56 unsigned int max_uV;
57 unsigned int min_uV;
58};
59
60/* Signal control for OTHC module */
61enum othc_micbias_enable {
62 /* Turn off MICBIAS signal */
63 OTHC_SIGNAL_OFF,
64 /* Turn on MICBIAS signal when TCXO is enabled */
65 OTHC_SIGNAL_TCXO,
66 /* Turn on MICBIAS signal when PWM is high or TCXO is enabled */
67 OTHC_SIGNAL_PWM_TCXO,
68 /* MICBIAS always enabled */
69 OTHC_SIGNAL_ALWAYS_ON,
70};
71
72/* Number of MICBIAS lines supported by PMIC8058 */
73enum othc_micbias {
74 OTHC_MICBIAS_0,
75 OTHC_MICBIAS_1,
76 OTHC_MICBIAS_2,
77 OTHC_MICBIAS_MAX,
78};
79
80enum othc_micbias_capability {
81 /* MICBIAS used only for BIAS with on/off capability */
82 OTHC_MICBIAS,
83 /* MICBIAS used to support HSED functionality */
84 OTHC_MICBIAS_HSED,
85};
86
87struct othc_switch_info {
88 u32 min_adc_threshold;
89 u32 max_adc_threshold;
90 u32 key_code;
91};
92
93struct othc_n_switch_config {
94 u32 voltage_settling_time_ms;
95 u8 num_adc_samples;
96 uint32_t adc_channel;
97 struct othc_switch_info *switch_info;
98 u8 num_keys;
99 bool default_sw_en;
100 u8 default_sw_idx;
101};
102
103struct hsed_bias_config {
104 enum othc_headset_type othc_headset;
105 u16 othc_lowcurr_thresh_uA;
106 u16 othc_highcurr_thresh_uA;
107 u32 othc_hyst_prediv_us;
108 u32 othc_period_clkdiv_us;
109 u32 othc_hyst_clk_us;
110 u32 othc_period_clk_us;
111 int othc_wakeup;
112};
113
114/* Configuration data for HSED */
115struct othc_hsed_config {
116 struct hsed_bias_config *hsed_bias_config;
117 unsigned long detection_delay_ms;
118 /* Switch configuration */
119 unsigned long switch_debounce_ms;
120 bool othc_support_n_switch; /* Set if supporting > 1 switch */
121 struct othc_n_switch_config *switch_config;
122 /* Accessory configuration */
123 bool accessories_support;
124 bool accessories_adc_support;
125 uint32_t accessories_adc_channel;
126 struct othc_accessory_info *accessories;
127 int othc_num_accessories;
128 int video_out_gpio;
129 int ir_gpio;
130};
131
132struct pmic8058_othc_config_pdata {
133 enum othc_micbias micbias_select;
134 enum othc_micbias_enable micbias_enable;
135 enum othc_micbias_capability micbias_capability;
136 struct othc_hsed_config *hsed_config;
137 const char *hsed_name;
138 struct othc_regulator_config *micbias_regulator;
139};
140
141int pm8058_micbias_enable(enum othc_micbias micbias,
142 enum othc_micbias_enable enable);
143int pm8058_othc_svideo_enable(enum othc_micbias micbias,
144 bool enable);
145
146#endif /* __PMIC8058_OTHC_H__ */