root/include/linux/lis3lv02d.h

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#ifndef __LIS3LV02D_H_
#define __LIS3LV02D_H_

/**
 * struct lis3lv02d_platform_data - lis3 chip family platform data
 * @click_flags:        Click detection unit configuration
 * @click_thresh_x:     Click detection unit x axis threshold
 * @click_thresh_y:     Click detection unit y axis threshold
 * @click_thresh_z:     Click detection unit z axis threshold
 * @click_time_limit:   Click detection unit time parameter
 * @click_latency:      Click detection unit latency parameter
 * @click_window:       Click detection unit window parameter
 * @irq_cfg:            On chip irq source and type configuration (click /
 *                      data available / wake up, open drain, polarity)
 * @irq_flags1:         Additional irq triggering flags for irq channel 0
 * @irq_flags2:         Additional irq triggering flags for irq channel 1
 * @duration1:          Wake up unit 1 duration parameter
 * @duration2:          Wake up unit 2 duration parameter
 * @wakeup_flags:       Wake up unit 1 flags
 * @wakeup_thresh:      Wake up unit 1 threshold value
 * @wakeup_flags2:      Wake up unit 2 flags
 * @wakeup_thresh2:     Wake up unit 2 threshold value
 * @hipass_ctrl:        High pass filter control (enable / disable, cut off
 *                      frequency)
 * @axis_x:             Sensor orientation remapping for x-axis
 * @axis_y:             Sensor orientation remapping for y-axis
 * @axis_z:             Sensor orientation remapping for z-axis
 * @driver_features:    Enable bits for different features. Disabled by default
 * @default_rate:       Default sampling rate. 0 means reset default
 * @setup_resources:    Interrupt line setup call back function
 * @release_resources:  Interrupt line release call back function
 * @st_min_limits[3]:   Selftest acceptance minimum values
 * @st_max_limits[3]:   Selftest acceptance maximum values
 * @irq2:               Irq line 2 number
 *
 * Platform data is used to setup the sensor chip. Meaning of the different
 * chip features can be found from the data sheet. It is publicly available
 * at www.st.com web pages. Currently the platform data is used
 * only for the 8 bit device. The 8 bit device has two wake up / free fall
 * detection units and click detection unit. There are plenty of ways to
 * configure the chip which makes is quite hard to explain deeper meaning of
 * the fields here. Behaviour of the detection blocks varies heavily depending
 * on the configuration. For example, interrupt detection block can use high
 * pass filtered data which makes it react to the changes in the acceleration.
 * Irq_flags can be used to enable interrupt detection on the both edges.
 * With proper chip configuration this produces interrupt when some trigger
 * starts and when it goes away.
 */

struct lis3lv02d_platform_data {
        /* please note: the 'click' feature is only supported for
         * LIS[32]02DL variants of the chip and will be ignored for
         * others */
#define LIS3_CLICK_SINGLE_X     (1 << 0)
#define LIS3_CLICK_DOUBLE_X     (1 << 1)
#define LIS3_CLICK_SINGLE_Y     (1 << 2)
#define LIS3_CLICK_DOUBLE_Y     (1 << 3)
#define LIS3_CLICK_SINGLE_Z     (1 << 4)
#define LIS3_CLICK_DOUBLE_Z     (1 << 5)
        unsigned char click_flags;
        unsigned char click_thresh_x;
        unsigned char click_thresh_y;
        unsigned char click_thresh_z;
        unsigned char click_time_limit;
        unsigned char click_latency;
        unsigned char click_window;

#define LIS3_IRQ1_DISABLE       (0 << 0)
#define LIS3_IRQ1_FF_WU_1       (1 << 0)
#define LIS3_IRQ1_FF_WU_2       (2 << 0)
#define LIS3_IRQ1_FF_WU_12      (3 << 0)
#define LIS3_IRQ1_DATA_READY    (4 << 0)
#define LIS3_IRQ1_CLICK         (7 << 0)
#define LIS3_IRQ1_MASK          (7 << 0)
#define LIS3_IRQ2_DISABLE       (0 << 3)
#define LIS3_IRQ2_FF_WU_1       (1 << 3)
#define LIS3_IRQ2_FF_WU_2       (2 << 3)
#define LIS3_IRQ2_FF_WU_12      (3 << 3)
#define LIS3_IRQ2_DATA_READY    (4 << 3)
#define LIS3_IRQ2_CLICK         (7 << 3)
#define LIS3_IRQ2_MASK          (7 << 3)
#define LIS3_IRQ_OPEN_DRAIN     (1 << 6)
#define LIS3_IRQ_ACTIVE_LOW     (1 << 7)
        unsigned char irq_cfg;
        unsigned char irq_flags1; /* Additional irq edge / level flags */
        unsigned char irq_flags2; /* Additional irq edge / level flags */
        unsigned char duration1;
        unsigned char duration2;
#define LIS3_WAKEUP_X_LO        (1 << 0)
#define LIS3_WAKEUP_X_HI        (1 << 1)
#define LIS3_WAKEUP_Y_LO        (1 << 2)
#define LIS3_WAKEUP_Y_HI        (1 << 3)
#define LIS3_WAKEUP_Z_LO        (1 << 4)
#define LIS3_WAKEUP_Z_HI        (1 << 5)
        unsigned char wakeup_flags;
        unsigned char wakeup_thresh;
        unsigned char wakeup_flags2;
        unsigned char wakeup_thresh2;
#define LIS3_HIPASS_CUTFF_8HZ   0
#define LIS3_HIPASS_CUTFF_4HZ   1
#define LIS3_HIPASS_CUTFF_2HZ   2
#define LIS3_HIPASS_CUTFF_1HZ   3
#define LIS3_HIPASS1_DISABLE    (1 << 2)
#define LIS3_HIPASS2_DISABLE    (1 << 3)
        unsigned char hipass_ctrl;
#define LIS3_NO_MAP             0
#define LIS3_DEV_X              1
#define LIS3_DEV_Y              2
#define LIS3_DEV_Z              3
#define LIS3_INV_DEV_X         -1
#define LIS3_INV_DEV_Y         -2
#define LIS3_INV_DEV_Z         -3
        s8 axis_x;
        s8 axis_y;
        s8 axis_z;
#define LIS3_USE_BLOCK_READ     0x02
        u16 driver_features;
        int default_rate;
        int (*setup_resources)(void);
        int (*release_resources)(void);
        /* Limits for selftest are specified in chip data sheet */
        s16 st_min_limits[3]; /* min pass limit x, y, z */
        s16 st_max_limits[3]; /* max pass limit x, y, z */
        int irq2;
};

#endif /* __LIS3LV02D_H_ */

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