129 lines
5.0 KiB
C
129 lines
5.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#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_ */
|