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 IQS620_HW_NUM_V0                        0x82
  18 #define IQS620_HW_NUM_V1                        IQS620_HW_NUM_V0
  19 #define IQS620_HW_NUM_V2                        IQS620_HW_NUM_V0
  20 #define IQS620_HW_NUM_V3                        0x92
  21
  22 #define IQS621_ALS_FLAGS                        0x16
  23 #define IQS622_ALS_FLAGS                        0x14
  24
  25 #define IQS624_HALL_UI                          0x70
  26 #define IQS624_HALL_UI_WHL_EVENT                BIT(4)
  27 #define IQS624_HALL_UI_INT_EVENT                BIT(3)
  28 #define IQS624_HALL_UI_AUTO_CAL                 BIT(2)
  29
  30 #define IQS624_INTERVAL_DIV                     0x7D
  31
  32 #define IQS620_GLBL_EVENT_MASK                  0xD7
  33 #define IQS620_GLBL_EVENT_MASK_PMU              BIT(6)
  34
  35 #define IQS62X_NUM_KEYS                         16
  36 #define IQS62X_NUM_EVENTS                       (IQS62X_NUM_KEYS + 6)
  37
  38 #define IQS62X_EVENT_SIZE                       10
  39
  40 enum iqs62x_ui_sel {
  41         IQS62X_UI_PROX,
  42         IQS62X_UI_SAR1,
  43 };
  44
  45 enum iqs62x_event_reg {
  46         IQS62X_EVENT_NONE,
  47         IQS62X_EVENT_SYS,
  48         IQS62X_EVENT_PROX,
  49         IQS62X_EVENT_HYST,
  50         IQS62X_EVENT_HALL,
  51         IQS62X_EVENT_ALS,
  52         IQS62X_EVENT_IR,
  53         IQS62X_EVENT_WHEEL,
  54         IQS62X_EVENT_INTER,
  55         IQS62X_EVENT_UI_LO,
  56         IQS62X_EVENT_UI_HI,
  57 };
  58
  59 enum iqs62x_event_flag {
  60         /* keys */
  61         IQS62X_EVENT_PROX_CH0_T,
  62         IQS62X_EVENT_PROX_CH0_P,
  63         IQS62X_EVENT_PROX_CH1_T,
  64         IQS62X_EVENT_PROX_CH1_P,
  65         IQS62X_EVENT_PROX_CH2_T,
  66         IQS62X_EVENT_PROX_CH2_P,
  67         IQS62X_EVENT_HYST_POS_T,
  68         IQS62X_EVENT_HYST_POS_P,
  69         IQS62X_EVENT_HYST_NEG_T,
  70         IQS62X_EVENT_HYST_NEG_P,
  71         IQS62X_EVENT_SAR1_ACT,
  72         IQS62X_EVENT_SAR1_QRD,
  73         IQS62X_EVENT_SAR1_MOVE,
  74         IQS62X_EVENT_SAR1_HALT,
  75         IQS62X_EVENT_WHEEL_UP,
  76         IQS62X_EVENT_WHEEL_DN,
  77
  78         /* switches */
  79         IQS62X_EVENT_HALL_N_T,
  80         IQS62X_EVENT_HALL_N_P,
  81         IQS62X_EVENT_HALL_S_T,
  82         IQS62X_EVENT_HALL_S_P,
  83
  84         /* everything else */
  85         IQS62X_EVENT_SYS_RESET,
  86         IQS62X_EVENT_SYS_ATI,
  87 };
  88
  89 struct iqs62x_event_data {
  90         u16 ui_data;
  91         u8 als_flags;
  92         u8 ir_flags;
  93         u8 interval;
  94 };
  95
  96 struct iqs62x_event_desc {
  97         enum iqs62x_event_reg reg;
  98         u8 mask;
  99         u8 val;
 100 };
 101
 102 struct iqs62x_dev_desc {
 103         const char *dev_name;
 104         const struct mfd_cell *sub_devs;
 105         int num_sub_devs;
 106         u8 prod_num;
 107         u8 sw_num;
 108         const u8 *cal_regs;
 109         int num_cal_regs;
 110         u8 prox_mask;
 111         u8 sar_mask;
 112         u8 hall_mask;
 113         u8 hyst_mask;
 114         u8 temp_mask;
 115         u8 als_mask;
 116         u8 ir_mask;
 117         u8 prox_settings;
 118         u8 als_flags;
 119         u8 hall_flags;
 120         u8 hyst_shift;
 121         u8 interval;
 122         u8 interval_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 ati_done;
 134         struct completion fw_done;
 135         enum iqs62x_ui_sel ui_sel;
 136         unsigned long event_cache;
 137         u8 sw_num;
 138         u8 hw_num;
 139 };
 140
 141 extern const struct iqs62x_event_desc iqs62x_events[IQS62X_NUM_EVENTS];
 142
 143 #endif /* __LINUX_MFD_IQS62X_H */