linux/include/linux/lis3lv02d.h
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   1#ifndef __LIS3LV02D_H_
   2#define __LIS3LV02D_H_
   3
   4/**
   5 * struct lis3lv02d_platform_data - lis3 chip family platform data
   6 * @click_flags:        Click detection unit configuration
   7 * @click_thresh_x:     Click detection unit x axis threshold
   8 * @click_thresh_y:     Click detection unit y axis threshold
   9 * @click_thresh_z:     Click detection unit z axis threshold
  10 * @click_time_limit:   Click detection unit time parameter
  11 * @click_latency:      Click detection unit latency parameter
  12 * @click_window:       Click detection unit window parameter
  13 * @irq_cfg:            On chip irq source and type configuration (click /
  14 *                      data available / wake up, open drain, polarity)
  15 * @irq_flags1:         Additional irq triggering flags for irq channel 0
  16 * @irq_flags2:         Additional irq triggering flags for irq channel 1
  17 * @duration1:          Wake up unit 1 duration parameter
  18 * @duration2:          Wake up unit 2 duration parameter
  19 * @wakeup_flags:       Wake up unit 1 flags
  20 * @wakeup_thresh:      Wake up unit 1 threshold value
  21 * @wakeup_flags2:      Wake up unit 2 flags
  22 * @wakeup_thresh2:     Wake up unit 2 threshold value
  23 * @hipass_ctrl:        High pass filter control (enable / disable, cut off
  24 *                      frequency)
  25 * @axis_x:             Sensor orientation remapping for x-axis
  26 * @axis_y:             Sensor orientation remapping for y-axis
  27 * @axis_z:             Sensor orientation remapping for z-axis
  28 * @driver_features:    Enable bits for different features. Disabled by default
  29 * @default_rate:       Default sampling rate. 0 means reset default
  30 * @setup_resources:    Interrupt line setup call back function
  31 * @release_resources:  Interrupt line release call back function
  32 * @st_min_limits[3]:   Selftest acceptance minimum values
  33 * @st_max_limits[3]:   Selftest acceptance maximum values
  34 * @irq2:               Irq line 2 number
  35 *
  36 * Platform data is used to setup the sensor chip. Meaning of the different
  37 * chip features can be found from the data sheet. It is publicly available
  38 * at www.st.com web pages. Currently the platform data is used
  39 * only for the 8 bit device. The 8 bit device has two wake up / free fall
  40 * detection units and click detection unit. There are plenty of ways to
  41 * configure the chip which makes is quite hard to explain deeper meaning of
  42 * the fields here. Behaviour of the detection blocks varies heavily depending
  43 * on the configuration. For example, interrupt detection block can use high
  44 * pass filtered data which makes it react to the changes in the acceleration.
  45 * Irq_flags can be used to enable interrupt detection on the both edges.
  46 * With proper chip configuration this produces interrupt when some trigger
  47 * starts and when it goes away.
  48 */
  49
  50struct lis3lv02d_platform_data {
  51        /* please note: the 'click' feature is only supported for
  52         * LIS[32]02DL variants of the chip and will be ignored for
  53         * others */
  54#define LIS3_CLICK_SINGLE_X     (1 << 0)
  55#define LIS3_CLICK_DOUBLE_X     (1 << 1)
  56#define LIS3_CLICK_SINGLE_Y     (1 << 2)
  57#define LIS3_CLICK_DOUBLE_Y     (1 << 3)
  58#define LIS3_CLICK_SINGLE_Z     (1 << 4)
  59#define LIS3_CLICK_DOUBLE_Z     (1 << 5)
  60        unsigned char click_flags;
  61        unsigned char click_thresh_x;
  62        unsigned char click_thresh_y;
  63        unsigned char click_thresh_z;
  64        unsigned char click_time_limit;
  65        unsigned char click_latency;
  66        unsigned char click_window;
  67
  68#define LIS3_IRQ1_DISABLE       (0 << 0)
  69#define LIS3_IRQ1_FF_WU_1       (1 << 0)
  70#define LIS3_IRQ1_FF_WU_2       (2 << 0)
  71#define LIS3_IRQ1_FF_WU_12      (3 << 0)
  72#define LIS3_IRQ1_DATA_READY    (4 << 0)
  73#define LIS3_IRQ1_CLICK         (7 << 0)
  74#define LIS3_IRQ1_MASK          (7 << 0)
  75#define LIS3_IRQ2_DISABLE       (0 << 3)
  76#define LIS3_IRQ2_FF_WU_1       (1 << 3)
  77#define LIS3_IRQ2_FF_WU_2       (2 << 3)
  78#define LIS3_IRQ2_FF_WU_12      (3 << 3)
  79#define LIS3_IRQ2_DATA_READY    (4 << 3)
  80#define LIS3_IRQ2_CLICK         (7 << 3)
  81#define LIS3_IRQ2_MASK          (7 << 3)
  82#define LIS3_IRQ_OPEN_DRAIN     (1 << 6)
  83#define LIS3_IRQ_ACTIVE_LOW     (1 << 7)
  84        unsigned char irq_cfg;
  85        unsigned char irq_flags1; /* Additional irq edge / level flags */
  86        unsigned char irq_flags2; /* Additional irq edge / level flags */
  87        unsigned char duration1;
  88        unsigned char duration2;
  89#define LIS3_WAKEUP_X_LO        (1 << 0)
  90#define LIS3_WAKEUP_X_HI        (1 << 1)
  91#define LIS3_WAKEUP_Y_LO        (1 << 2)
  92#define LIS3_WAKEUP_Y_HI        (1 << 3)
  93#define LIS3_WAKEUP_Z_LO        (1 << 4)
  94#define LIS3_WAKEUP_Z_HI        (1 << 5)
  95        unsigned char wakeup_flags;
  96        unsigned char wakeup_thresh;
  97        unsigned char wakeup_flags2;
  98        unsigned char wakeup_thresh2;
  99#define LIS3_HIPASS_CUTFF_8HZ   0
 100#define LIS3_HIPASS_CUTFF_4HZ   1
 101#define LIS3_HIPASS_CUTFF_2HZ   2
 102#define LIS3_HIPASS_CUTFF_1HZ   3
 103#define LIS3_HIPASS1_DISABLE    (1 << 2)
 104#define LIS3_HIPASS2_DISABLE    (1 << 3)
 105        unsigned char hipass_ctrl;
 106#define LIS3_NO_MAP             0
 107#define LIS3_DEV_X              1
 108#define LIS3_DEV_Y              2
 109#define LIS3_DEV_Z              3
 110#define LIS3_INV_DEV_X         -1
 111#define LIS3_INV_DEV_Y         -2
 112#define LIS3_INV_DEV_Z         -3
 113        s8 axis_x;
 114        s8 axis_y;
 115        s8 axis_z;
 116#define LIS3_USE_BLOCK_READ     0x02
 117        u16 driver_features;
 118        int default_rate;
 119        int (*setup_resources)(void);
 120        int (*release_resources)(void);
 121        /* Limits for selftest are specified in chip data sheet */
 122        s16 st_min_limits[3]; /* min pass limit x, y, z */
 123        s16 st_max_limits[3]; /* max pass limit x, y, z */
 124        int irq2;
 125};
 126
 127#endif /* __LIS3LV02D_H_ */
 128
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