include/linux/input/gp2a.h

   1 #ifndef __GP2A_H__
   2 #define __GP2A_H__
   3
   4 #define I2C_M_WR 0              /* for i2c Write */
   5 #define I2c_M_RD 1              /* for i2c Read */
   6
   7 #define I2C_DF_NOTIFY                   0x01    /* for i2c */
   8
   9 /* Registers */
  10 #define COMMAND1    0x00
  11 #define COMMAND2    0x01        /* Read&Write */
  12 #define COMMAND3    0x02        /* Read&Write */
  13 #define COMMAND4    0x03        /* Read&Write */
  14 #define INT_LT_LSB  0x04        /* Read&Write */
  15 #define INT_LT_MSB  0x05        /* Read&Write */
  16 #define INT_HT_LSB  0x06        /* Read&Write */
  17 #define INT_HT_MSB  0x07        /* Read&Write */
  18 #define PS_LT_LSB   0x08        /* Read&Write */
  19 #define PS_LT_MSB   0x09        /* Read&Write */
  20 #define PS_HT_LSB   0x0A        /* Read&Write */
  21 #define PS_HT_MSB   0x0B        /* Read&Write */
  22 #define DATA0_LSB   0x0C        /* Read Only */
  23 #define DATA0_MSB   0x0D        /* Read Only */
  24 #define DATA1_LSB   0x0E        /* Read Only */
  25 #define DATA1_MSB   0x0F        /* Read Only */
  26 #define DATA2_LSB   0x10        /* Read Only */
  27 #define DATA2_MSB   0x11        /* Read Only */
  28
  29 #define ADC_BUFFER_NUM  6
  30
  31 /* 16 level for premium model*/
  32 enum {
  33         LIGHT_DIM   = 0,
  34         LIGHT_LEVEL1   = 1,
  35         LIGHT_LEVEL2   = 2,
  36         LIGHT_LEVEL3   = 3,
  37         LIGHT_LEVEL4   = 4,
  38         LIGHT_LEVEL5   = 5,
  39         LIGHT_LEVEL6   = 6,
  40         LIGHT_LEVEL7   = 7,
  41         LIGHT_LEVEL8   = 8,
  42         LIGHT_LEVEL9   = 9,
  43         LIGHT_LEVEL10   = 10,
  44         LIGHT_LEVEL11   = 11,
  45         LIGHT_LEVEL12   = 12,
  46         LIGHT_LEVEL13   = 13,
  47         LIGHT_LEVEL14   = 14,
  48         LIGHT_LEVEL15   = 15,
  49         LIGHT_LEVEL16   = 16,
  50         LIGHT_INIT  = 17,
  51 };
  52
  53 /* extern variables */
  54 extern u8 lightsensor_mode;     /* 0 = low, 1 = high */
  55 extern int proximity_enable;
  56 extern char proximity_sensor_detection;
  57
  58 /* prototype */
  59 int opt_i2c_read(u8 reg, unsigned char *rbuf, int len);
  60 int opt_i2c_write(u8 reg, u8 *val);
  61 int lightsensor_get_adcvalue(void);
  62
  63 struct gp2a_platform_data {
  64         int (*gp2a_led_on) (bool);
  65         int p_out; /* proximity-sensor-output gpio */
  66         int (*gp2a_get_low_threshold)(void);
  67 };
  68 #endif