include/linux/mfd/iqs62x.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Azoteq IQS620A/621/622/624/625 Multi-Function Sensors
   4  *
   5  * Copyright (C) 2019 Jeff LaBundy <jeff@labundy.com>
   6  */
   7
   8 #ifndef __LINUX_MFD_IQS62X_H
   9 #define __LINUX_MFD_IQS62X_H
  10
  11 #define IQS620_PROD_NUM                         0x41
  12 #define IQS621_PROD_NUM                         0x46
  13 #define IQS622_PROD_NUM                         0x42
  14 #define IQS624_PROD_NUM                         0x43
  15 #define IQS625_PROD_NUM                         0x4E
  16
  17 #define IQS621_ALS_FLAGS                        0x16
  18 #define IQS622_ALS_FLAGS                        0x14
  19
  20 #define IQS624_HALL_UI                          0x70
  21 #define IQS624_HALL_UI_WHL_EVENT                BIT(4)
  22 #define IQS624_HALL_UI_INT_EVENT                BIT(3)
  23 #define IQS624_HALL_UI_AUTO_CAL                 BIT(2)
  24
  25 #define IQS624_INTERVAL_DIV                     0x7D
  26
  27 #define IQS620_GLBL_EVENT_MASK                  0xD7
  28 #define IQS620_GLBL_EVENT_MASK_PMU              BIT(6)
  29
  30 #define IQS62X_NUM_KEYS                         16
  31 #define IQS62X_NUM_EVENTS                       (IQS62X_NUM_KEYS + 5)
  32
  33 #define IQS62X_EVENT_SIZE                       10
  34
  35 enum iqs62x_ui_sel {
  36         IQS62X_UI_PROX,
  37         IQS62X_UI_SAR1,
  38 };
  39
  40 enum iqs62x_event_reg {
  41         IQS62X_EVENT_NONE,
  42         IQS62X_EVENT_SYS,
  43         IQS62X_EVENT_PROX,
  44         IQS62X_EVENT_HYST,
  45         IQS62X_EVENT_HALL,
  46         IQS62X_EVENT_ALS,
  47         IQS62X_EVENT_IR,
  48         IQS62X_EVENT_WHEEL,
  49         IQS62X_EVENT_INTER,
  50         IQS62X_EVENT_UI_LO,
  51         IQS62X_EVENT_UI_HI,
  52 };
  53
  54 enum iqs62x_event_flag {
  55         /* keys */
  56         IQS62X_EVENT_PROX_CH0_T,
  57         IQS62X_EVENT_PROX_CH0_P,
  58         IQS62X_EVENT_PROX_CH1_T,
  59         IQS62X_EVENT_PROX_CH1_P,
  60         IQS62X_EVENT_PROX_CH2_T,
  61         IQS62X_EVENT_PROX_CH2_P,
  62         IQS62X_EVENT_HYST_POS_T,
  63         IQS62X_EVENT_HYST_POS_P,
  64         IQS62X_EVENT_HYST_NEG_T,
  65         IQS62X_EVENT_HYST_NEG_P,
  66         IQS62X_EVENT_SAR1_ACT,
  67         IQS62X_EVENT_SAR1_QRD,
  68         IQS62X_EVENT_SAR1_MOVE,
  69         IQS62X_EVENT_SAR1_HALT,
  70         IQS62X_EVENT_WHEEL_UP,
  71         IQS62X_EVENT_WHEEL_DN,
  72
  73         /* switches */
  74         IQS62X_EVENT_HALL_N_T,
  75         IQS62X_EVENT_HALL_N_P,
  76         IQS62X_EVENT_HALL_S_T,
  77         IQS62X_EVENT_HALL_S_P,
  78
  79         /* everything else */
  80         IQS62X_EVENT_SYS_RESET,
  81 };
  82
  83 struct iqs62x_event_data {
  84         u16 ui_data;
  85         u8 als_flags;
  86         u8 ir_flags;
  87         u8 interval;
  88 };
  89
  90 struct iqs62x_event_desc {
  91         enum iqs62x_event_reg reg;
  92         u8 mask;
  93         u8 val;
  94 };
  95
  96 struct iqs62x_dev_desc {
  97         const char *dev_name;
  98         const struct mfd_cell *sub_devs;
  99         int num_sub_devs;
 100
 101         u8 prod_num;
 102         u8 sw_num;
 103         const u8 *cal_regs;
 104         int num_cal_regs;
 105
 106         u8 prox_mask;
 107         u8 sar_mask;
 108         u8 hall_mask;
 109         u8 hyst_mask;
 110         u8 temp_mask;
 111         u8 als_mask;
 112         u8 ir_mask;
 113
 114         u8 prox_settings;
 115         u8 als_flags;
 116         u8 hall_flags;
 117         u8 hyst_shift;
 118
 119         u8 interval;
 120         u8 interval_div;
 121
 122         u8 clk_div;
 123         const char *fw_name;
 124         const enum iqs62x_event_reg (*event_regs)[IQS62X_EVENT_SIZE];
 125 };
 126
 127 struct iqs62x_core {
 128         const struct iqs62x_dev_desc *dev_desc;
 129         struct i2c_client *client;
 130         struct regmap *regmap;
 131         struct blocking_notifier_head nh;
 132         struct list_head fw_blk_head;
 133         struct completion fw_done;
 134         enum iqs62x_ui_sel ui_sel;
 135 };
 136
 137 extern const struct iqs62x_event_desc iqs62x_events[IQS62X_NUM_EVENTS];
 138
 139 #endif /* __LINUX_MFD_IQS62X_H */