linux/mfd/iqs62x.h

0001 /* SPDX-License-Identifier: GPL-2.0+ */
0002 /*
0003  * Azoteq IQS620A/621/622/624/625 Multi-Function Sensors
0004  *
0005  * Copyright (C) 2019 Jeff LaBundy <jeff@labundy.com>
0006  */
0007
0008 #ifndef __LINUX_MFD_IQS62X_H
0009 #define __LINUX_MFD_IQS62X_H
0010
0011 #define IQS620_PROD_NUM             0x41
0012 #define IQS621_PROD_NUM             0x46
0013 #define IQS622_PROD_NUM             0x42
0014 #define IQS624_PROD_NUM             0x43
0015 #define IQS625_PROD_NUM             0x4E
0016
0017 #define IQS620_HW_NUM_V0            0x82
0018 #define IQS620_HW_NUM_V1            IQS620_HW_NUM_V0
0019 #define IQS620_HW_NUM_V2            IQS620_HW_NUM_V0
0020 #define IQS620_HW_NUM_V3            0x92
0021
0022 #define IQS621_ALS_FLAGS            0x16
0023 #define IQS622_ALS_FLAGS            0x14
0024
0025 #define IQS624_HALL_UI              0x70
0026 #define IQS624_HALL_UI_WHL_EVENT        BIT(4)
0027 #define IQS624_HALL_UI_INT_EVENT        BIT(3)
0028 #define IQS624_HALL_UI_AUTO_CAL         BIT(2)
0029
0030 #define IQS624_INTERVAL_DIV         0x7D
0031
0032 #define IQS620_GLBL_EVENT_MASK          0xD7
0033 #define IQS620_GLBL_EVENT_MASK_PMU      BIT(6)
0034
0035 #define IQS62X_NUM_KEYS             16
0036 #define IQS62X_NUM_EVENTS           (IQS62X_NUM_KEYS + 6)
0037
0038 #define IQS62X_EVENT_SIZE           10
0039
0040 enum iqs62x_ui_sel {
0041     IQS62X_UI_PROX,
0042     IQS62X_UI_SAR1,
0043 };
0044
0045 enum iqs62x_event_reg {
0046     IQS62X_EVENT_NONE,
0047     IQS62X_EVENT_SYS,
0048     IQS62X_EVENT_PROX,
0049     IQS62X_EVENT_HYST,
0050     IQS62X_EVENT_HALL,
0051     IQS62X_EVENT_ALS,
0052     IQS62X_EVENT_IR,
0053     IQS62X_EVENT_WHEEL,
0054     IQS62X_EVENT_INTER,
0055     IQS62X_EVENT_UI_LO,
0056     IQS62X_EVENT_UI_HI,
0057 };
0058
0059 enum iqs62x_event_flag {
0060     /* keys */
0061     IQS62X_EVENT_PROX_CH0_T,
0062     IQS62X_EVENT_PROX_CH0_P,
0063     IQS62X_EVENT_PROX_CH1_T,
0064     IQS62X_EVENT_PROX_CH1_P,
0065     IQS62X_EVENT_PROX_CH2_T,
0066     IQS62X_EVENT_PROX_CH2_P,
0067     IQS62X_EVENT_HYST_POS_T,
0068     IQS62X_EVENT_HYST_POS_P,
0069     IQS62X_EVENT_HYST_NEG_T,
0070     IQS62X_EVENT_HYST_NEG_P,
0071     IQS62X_EVENT_SAR1_ACT,
0072     IQS62X_EVENT_SAR1_QRD,
0073     IQS62X_EVENT_SAR1_MOVE,
0074     IQS62X_EVENT_SAR1_HALT,
0075     IQS62X_EVENT_WHEEL_UP,
0076     IQS62X_EVENT_WHEEL_DN,
0077
0078     /* switches */
0079     IQS62X_EVENT_HALL_N_T,
0080     IQS62X_EVENT_HALL_N_P,
0081     IQS62X_EVENT_HALL_S_T,
0082     IQS62X_EVENT_HALL_S_P,
0083
0084     /* everything else */
0085     IQS62X_EVENT_SYS_RESET,
0086     IQS62X_EVENT_SYS_ATI,
0087 };
0088
0089 struct iqs62x_event_data {
0090     u16 ui_data;
0091     u8 als_flags;
0092     u8 ir_flags;
0093     u8 interval;
0094 };
0095
0096 struct iqs62x_event_desc {
0097     enum iqs62x_event_reg reg;
0098     u8 mask;
0099     u8 val;
0100 };
0101
0102 struct iqs62x_dev_desc {
0103     const char *dev_name;
0104     const struct mfd_cell *sub_devs;
0105     int num_sub_devs;
0106     u8 prod_num;
0107     u8 sw_num;
0108     const u8 *cal_regs;
0109     int num_cal_regs;
0110     u8 prox_mask;
0111     u8 sar_mask;
0112     u8 hall_mask;
0113     u8 hyst_mask;
0114     u8 temp_mask;
0115     u8 als_mask;
0116     u8 ir_mask;
0117     u8 prox_settings;
0118     u8 als_flags;
0119     u8 hall_flags;
0120     u8 hyst_shift;
0121     u8 interval;
0122     u8 interval_div;
0123     const char *fw_name;
0124     const enum iqs62x_event_reg (*event_regs)[IQS62X_EVENT_SIZE];
0125 };
0126
0127 struct iqs62x_core {
0128     const struct iqs62x_dev_desc *dev_desc;
0129     struct i2c_client *client;
0130     struct regmap *regmap;
0131     struct blocking_notifier_head nh;
0132     struct list_head fw_blk_head;
0133     struct completion ati_done;
0134     struct completion fw_done;
0135     enum iqs62x_ui_sel ui_sel;
0136     unsigned long event_cache;
0137     u8 sw_num;
0138     u8 hw_num;
0139 };
0140
0141 extern const struct iqs62x_event_desc iqs62x_events[IQS62X_NUM_EVENTS];
0142
0143 #endif /* __LINUX_MFD_IQS62X_H */