drivers/input/touchscreen/tsc200x-core.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _TSC200X_CORE_H
   3 #define _TSC200X_CORE_H
   4
   5 /* control byte 1 */
   6 #define TSC200X_CMD                     0x80
   7 #define TSC200X_CMD_NORMAL              0x00
   8 #define TSC200X_CMD_STOP                0x01
   9 #define TSC200X_CMD_12BIT               0x04
  10
  11 /* control byte 0 */
  12 #define TSC200X_REG_READ                0x01 /* R/W access */
  13 #define TSC200X_REG_PND0                0x02 /* Power Not Down Control */
  14 #define TSC200X_REG_X                   (0x0 << 3)
  15 #define TSC200X_REG_Y                   (0x1 << 3)
  16 #define TSC200X_REG_Z1                  (0x2 << 3)
  17 #define TSC200X_REG_Z2                  (0x3 << 3)
  18 #define TSC200X_REG_AUX                 (0x4 << 3)
  19 #define TSC200X_REG_TEMP1               (0x5 << 3)
  20 #define TSC200X_REG_TEMP2               (0x6 << 3)
  21 #define TSC200X_REG_STATUS              (0x7 << 3)
  22 #define TSC200X_REG_AUX_HIGH            (0x8 << 3)
  23 #define TSC200X_REG_AUX_LOW             (0x9 << 3)
  24 #define TSC200X_REG_TEMP_HIGH           (0xA << 3)
  25 #define TSC200X_REG_TEMP_LOW            (0xB << 3)
  26 #define TSC200X_REG_CFR0                (0xC << 3)
  27 #define TSC200X_REG_CFR1                (0xD << 3)
  28 #define TSC200X_REG_CFR2                (0xE << 3)
  29 #define TSC200X_REG_CONV_FUNC           (0xF << 3)
  30
  31 /* configuration register 0 */
  32 #define TSC200X_CFR0_PRECHARGE_276US    0x0040
  33 #define TSC200X_CFR0_STABTIME_1MS       0x0300
  34 #define TSC200X_CFR0_CLOCK_1MHZ         0x1000
  35 #define TSC200X_CFR0_RESOLUTION12       0x2000
  36 #define TSC200X_CFR0_PENMODE            0x8000
  37 #define TSC200X_CFR0_INITVALUE          (TSC200X_CFR0_STABTIME_1MS    | \
  38                                          TSC200X_CFR0_CLOCK_1MHZ      | \
  39                                          TSC200X_CFR0_RESOLUTION12    | \
  40                                          TSC200X_CFR0_PRECHARGE_276US | \
  41                                          TSC200X_CFR0_PENMODE)
  42
  43 /* bits common to both read and write of configuration register 0 */
  44 #define TSC200X_CFR0_RW_MASK            0x3fff
  45
  46 /* configuration register 1 */
  47 #define TSC200X_CFR1_BATCHDELAY_4MS     0x0003
  48 #define TSC200X_CFR1_INITVALUE          TSC200X_CFR1_BATCHDELAY_4MS
  49
  50 /* configuration register 2 */
  51 #define TSC200X_CFR2_MAVE_Z             0x0004
  52 #define TSC200X_CFR2_MAVE_Y             0x0008
  53 #define TSC200X_CFR2_MAVE_X             0x0010
  54 #define TSC200X_CFR2_AVG_7              0x0800
  55 #define TSC200X_CFR2_MEDIUM_15          0x3000
  56 #define TSC200X_CFR2_INITVALUE          (TSC200X_CFR2_MAVE_X    | \
  57                                          TSC200X_CFR2_MAVE_Y    | \
  58                                          TSC200X_CFR2_MAVE_Z    | \
  59                                          TSC200X_CFR2_MEDIUM_15 | \
  60                                          TSC200X_CFR2_AVG_7)
  61
  62 #define MAX_12BIT                       0xfff
  63 #define TSC200X_DEF_X_FUZZ              4
  64 #define TSC200X_DEF_Y_FUZZ              8
  65 #define TSC200X_DEF_P_FUZZ              2
  66 #define TSC200X_DEF_RESISTOR            280
  67
  68 #define TSC2005_SPI_MAX_SPEED_HZ        10000000
  69 #define TSC200X_PENUP_TIME_MS           40
  70
  71 extern const struct regmap_config tsc200x_regmap_config;
  72 extern const struct dev_pm_ops tsc200x_pm_ops;
  73 extern const struct attribute_group *tsc200x_groups[];
  74
  75 int tsc200x_probe(struct device *dev, int irq, const struct input_id *tsc_id,
  76                   struct regmap *regmap,
  77                   int (*tsc200x_cmd)(struct device *dev, u8 cmd));
  78
  79 #endif