include/linux/platform_data/pixcir_i2c_ts.h

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