include/linux/mfd/sun4i-gpadc.h

   1 /* Header of ADC MFD core driver for sunxi platforms
   2  *
   3  * Copyright (c) 2016 Quentin Schulz <quentin.schulz@free-electrons.com>
   4  *
   5  * This program is free software; you can redistribute it and/or modify it under
   6  * the terms of the GNU General Public License version 2 as published by the
   7  * Free Software Foundation.
   8  */
   9
  10 #ifndef __SUN4I_GPADC__H__
  11 #define __SUN4I_GPADC__H__
  12
  13 #define SUN4I_GPADC_CTRL0                               0x00
  14
  15 #define SUN4I_GPADC_CTRL0_ADC_FIRST_DLY(x)              ((GENMASK(7, 0) & (x)) << 24)
  16 #define SUN4I_GPADC_CTRL0_ADC_FIRST_DLY_MODE            BIT(23)
  17 #define SUN4I_GPADC_CTRL0_ADC_CLK_SELECT                BIT(22)
  18 #define SUN4I_GPADC_CTRL0_ADC_CLK_DIVIDER(x)            ((GENMASK(1, 0) & (x)) << 20)
  19 #define SUN4I_GPADC_CTRL0_FS_DIV(x)                     ((GENMASK(3, 0) & (x)) << 16)
  20 #define SUN4I_GPADC_CTRL0_T_ACQ(x)                      (GENMASK(15, 0) & (x))
  21
  22 #define SUN4I_GPADC_CTRL1                               0x04
  23
  24 #define SUN4I_GPADC_CTRL1_STYLUS_UP_DEBOUNCE(x)         ((GENMASK(7, 0) & (x)) << 12)
  25 #define SUN4I_GPADC_CTRL1_STYLUS_UP_DEBOUNCE_EN         BIT(9)
  26 #define SUN4I_GPADC_CTRL1_TOUCH_PAN_CALI_EN             BIT(6)
  27 #define SUN4I_GPADC_CTRL1_TP_DUAL_EN                    BIT(5)
  28 #define SUN4I_GPADC_CTRL1_TP_MODE_EN                    BIT(4)
  29 #define SUN4I_GPADC_CTRL1_TP_ADC_SELECT                 BIT(3)
  30 #define SUN4I_GPADC_CTRL1_ADC_CHAN_SELECT(x)            (GENMASK(2, 0) & (x))
  31
  32 /* TP_CTRL1 bits for sun6i SOCs */
  33 #define SUN6I_GPADC_CTRL1_TOUCH_PAN_CALI_EN             BIT(7)
  34 #define SUN6I_GPADC_CTRL1_TP_DUAL_EN                    BIT(6)
  35 #define SUN6I_GPADC_CTRL1_TP_MODE_EN                    BIT(5)
  36 #define SUN6I_GPADC_CTRL1_TP_ADC_SELECT                 BIT(4)
  37 #define SUN6I_GPADC_CTRL1_ADC_CHAN_SELECT(x)            (GENMASK(3, 0) & BIT(x))
  38
  39 #define SUN4I_GPADC_CTRL2                               0x08
  40
  41 #define SUN4I_GPADC_CTRL2_TP_SENSITIVE_ADJUST(x)        ((GENMASK(3, 0) & (x)) << 28)
  42 #define SUN4I_GPADC_CTRL2_TP_MODE_SELECT(x)             ((GENMASK(1, 0) & (x)) << 26)
  43 #define SUN4I_GPADC_CTRL2_PRE_MEA_EN                    BIT(24)
  44 #define SUN4I_GPADC_CTRL2_PRE_MEA_THRE_CNT(x)           (GENMASK(23, 0) & (x))
  45
  46 #define SUN4I_GPADC_CTRL3                               0x0c
  47
  48 #define SUN4I_GPADC_CTRL3_FILTER_EN                     BIT(2)
  49 #define SUN4I_GPADC_CTRL3_FILTER_TYPE(x)                (GENMASK(1, 0) & (x))
  50
  51 #define SUN4I_GPADC_TPR                                 0x18
  52
  53 #define SUN4I_GPADC_TPR_TEMP_ENABLE                     BIT(16)
  54 #define SUN4I_GPADC_TPR_TEMP_PERIOD(x)                  (GENMASK(15, 0) & (x))
  55
  56 #define SUN4I_GPADC_INT_FIFOC                           0x10
  57
  58 #define SUN4I_GPADC_INT_FIFOC_TEMP_IRQ_EN               BIT(18)
  59 #define SUN4I_GPADC_INT_FIFOC_TP_OVERRUN_IRQ_EN         BIT(17)
  60 #define SUN4I_GPADC_INT_FIFOC_TP_DATA_IRQ_EN            BIT(16)
  61 #define SUN4I_GPADC_INT_FIFOC_TP_DATA_XY_CHANGE         BIT(13)
  62 #define SUN4I_GPADC_INT_FIFOC_TP_FIFO_TRIG_LEVEL(x)     ((GENMASK(4, 0) & (x)) << 8)
  63 #define SUN4I_GPADC_INT_FIFOC_TP_DATA_DRQ_EN            BIT(7)
  64 #define SUN4I_GPADC_INT_FIFOC_TP_FIFO_FLUSH             BIT(4)
  65 #define SUN4I_GPADC_INT_FIFOC_TP_UP_IRQ_EN              BIT(1)
  66 #define SUN4I_GPADC_INT_FIFOC_TP_DOWN_IRQ_EN            BIT(0)
  67
  68 #define SUN4I_GPADC_INT_FIFOS                           0x14
  69
  70 #define SUN4I_GPADC_INT_FIFOS_TEMP_DATA_PENDING         BIT(18)
  71 #define SUN4I_GPADC_INT_FIFOS_FIFO_OVERRUN_PENDING      BIT(17)
  72 #define SUN4I_GPADC_INT_FIFOS_FIFO_DATA_PENDING         BIT(16)
  73 #define SUN4I_GPADC_INT_FIFOS_TP_IDLE_FLG               BIT(2)
  74 #define SUN4I_GPADC_INT_FIFOS_TP_UP_PENDING             BIT(1)
  75 #define SUN4I_GPADC_INT_FIFOS_TP_DOWN_PENDING           BIT(0)
  76
  77 #define SUN4I_GPADC_CDAT                                0x1c
  78 #define SUN4I_GPADC_TEMP_DATA                           0x20
  79 #define SUN4I_GPADC_DATA                                0x24
  80
  81 #define SUN4I_GPADC_IRQ_FIFO_DATA                       0
  82 #define SUN4I_GPADC_IRQ_TEMP_DATA                       1
  83
  84 /* 10s delay before suspending the IP */
  85 #define SUN4I_GPADC_AUTOSUSPEND_DELAY                   10000
  86
  87 struct sun4i_gpadc_dev {
  88         struct device                   *dev;
  89         struct regmap                   *regmap;
  90         struct regmap_irq_chip_data     *regmap_irqc;
  91         void __iomem                    *base;
  92 };
  93
  94 #endif