include/linux/platform_data/pixcir_i2c_ts.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _PIXCIR_I2C_TS_H
   3 #define _PIXCIR_I2C_TS_H
   4
   5 /*
   6  * Register map
   7  */
   8 #define PIXCIR_REG_POWER_MODE   51
   9 #define PIXCIR_REG_INT_MODE     52
  10
  11 /*
  12  * Power modes:
  13  * active: max scan speed
  14  * idle: lower scan speed with automatic transition to active on touch
  15  * halt: datasheet says sleep but this is more like halt as the chip
  16  *       clocks are cut and it can only be brought out of this mode
  17  *       using the RESET pin.
  18  */
  19 enum pixcir_power_mode {
  20         PIXCIR_POWER_ACTIVE,
  21         PIXCIR_POWER_IDLE,
  22         PIXCIR_POWER_HALT,
  23 };
  24
  25 #define PIXCIR_POWER_MODE_MASK  0x03
  26 #define PIXCIR_POWER_ALLOW_IDLE (1UL << 2)
  27
  28 /*
  29  * Interrupt modes:
  30  * periodical: interrupt is asserted periodicaly
  31  * diff coordinates: interrupt is asserted when coordinates change
  32  * level on touch: interrupt level asserted during touch
  33  * pulse on touch: interrupt pulse asserted druing touch
  34  *
  35  */
  36 enum pixcir_int_mode {
  37         PIXCIR_INT_PERIODICAL,
  38         PIXCIR_INT_DIFF_COORD,
  39         PIXCIR_INT_LEVEL_TOUCH,
  40         PIXCIR_INT_PULSE_TOUCH,
  41 };
  42
  43 #define PIXCIR_INT_MODE_MASK    0x03
  44 #define PIXCIR_INT_ENABLE       (1UL << 3)
  45 #define PIXCIR_INT_POL_HIGH     (1UL << 2)
  46
  47 /**
  48  * struct pixcir_irc_chip_data - chip related data
  49  * @max_fingers:        Max number of fingers reported simultaneously by h/w
  50  * @has_hw_ids:         Hardware supports finger tracking IDs
  51  *
  52  */
  53 struct pixcir_i2c_chip_data {
  54         u8 max_fingers;
  55         bool has_hw_ids;
  56 };
  57
  58 struct pixcir_ts_platform_data {
  59         int x_max;
  60         int y_max;
  61         struct pixcir_i2c_chip_data chip;
  62 };
  63
  64 #endif