include/linux/lis3lv02d.h

   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
  50 struct 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_ */