1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __LIS3LV02D_H_
3 #define __LIS3LV02D_H_
4
5 /**
6 * struct lis3lv02d_platform_data - lis3 chip family platform data
7 * @click_flags: Click detection unit configuration
8 * @click_thresh_x: Click detection unit x axis threshold
9 * @click_thresh_y: Click detection unit y axis threshold
10 * @click_thresh_z: Click detection unit z axis threshold
11 * @click_time_limit: Click detection unit time parameter
12 * @click_latency: Click detection unit latency parameter
13 * @click_window: Click detection unit window parameter
14 * @irq_cfg: On chip irq source and type configuration (click /
15 * data available / wake up, open drain, polarity)
16 * @irq_flags1: Additional irq triggering flags for irq channel 0
17 * @irq_flags2: Additional irq triggering flags for irq channel 1
18 * @duration1: Wake up unit 1 duration parameter
19 * @duration2: Wake up unit 2 duration parameter
20 * @wakeup_flags: Wake up unit 1 flags
21 * @wakeup_thresh: Wake up unit 1 threshold value
22 * @wakeup_flags2: Wake up unit 2 flags
23 * @wakeup_thresh2: Wake up unit 2 threshold value
24 * @hipass_ctrl: High pass filter control (enable / disable, cut off
25 * frequency)
26 * @axis_x: Sensor orientation remapping for x-axis
27 * @axis_y: Sensor orientation remapping for y-axis
28 * @axis_z: Sensor orientation remapping for z-axis
29 * @driver_features: Enable bits for different features. Disabled by default
30 * @default_rate: Default sampling rate. 0 means reset default
31 * @setup_resources: Interrupt line setup call back function
32 * @release_resources: Interrupt line release call back function
33 * @st_min_limits[3]: Selftest acceptance minimum values
34 * @st_max_limits[3]: Selftest acceptance maximum values
35 * @irq2: Irq line 2 number
36 *
37 * Platform data is used to setup the sensor chip. Meaning of the different
38 * chip features can be found from the data sheet. It is publicly available
39 * at www.st.com web pages. Currently the platform data is used
40 * only for the 8 bit device. The 8 bit device has two wake up / free fall
41 * detection units and click detection unit. There are plenty of ways to
42 * configure the chip which makes is quite hard to explain deeper meaning of
43 * the fields here. Behaviour of the detection blocks varies heavily depending
44 * on the configuration. For example, interrupt detection block can use high
45 * pass filtered data which makes it react to the changes in the acceleration.
46 * Irq_flags can be used to enable interrupt detection on the both edges.
47 * With proper chip configuration this produces interrupt when some trigger
48 * starts and when it goes away.
49 */
50
51 struct lis3lv02d_platform_data {
52 /* please note: the 'click' feature is only supported for
53 * LIS[32]02DL variants of the chip and will be ignored for
54 * others */
55 #define LIS3_CLICK_SINGLE_X (1 << 0)
56 #define LIS3_CLICK_DOUBLE_X (1 << 1)
57 #define LIS3_CLICK_SINGLE_Y (1 << 2)
58 #define LIS3_CLICK_DOUBLE_Y (1 << 3)
59 #define LIS3_CLICK_SINGLE_Z (1 << 4)
60 #define LIS3_CLICK_DOUBLE_Z (1 << 5)
61 unsigned char click_flags;
62 unsigned char click_thresh_x;
63 unsigned char click_thresh_y;
64 unsigned char click_thresh_z;
65 unsigned char click_time_limit;
66 unsigned char click_latency;
67 unsigned char click_window;
68
69 #define LIS3_IRQ1_DISABLE (0 << 0)
70 #define LIS3_IRQ1_FF_WU_1 (1 << 0)
71 #define LIS3_IRQ1_FF_WU_2 (2 << 0)
72 #define LIS3_IRQ1_FF_WU_12 (3 << 0)
73 #define LIS3_IRQ1_DATA_READY (4 << 0)
74 #define LIS3_IRQ1_CLICK (7 << 0)
75 #define LIS3_IRQ1_MASK (7 << 0)
76 #define LIS3_IRQ2_DISABLE (0 << 3)
77 #define LIS3_IRQ2_FF_WU_1 (1 << 3)
78 #define LIS3_IRQ2_FF_WU_2 (2 << 3)
79 #define LIS3_IRQ2_FF_WU_12 (3 << 3)
80 #define LIS3_IRQ2_DATA_READY (4 << 3)
81 #define LIS3_IRQ2_CLICK (7 << 3)
82 #define LIS3_IRQ2_MASK (7 << 3)
83 #define LIS3_IRQ_OPEN_DRAIN (1 << 6)
84 #define LIS3_IRQ_ACTIVE_LOW (1 << 7)
85 unsigned char irq_cfg;
86 unsigned char irq_flags1; /* Additional irq edge / level flags */
87 unsigned char irq_flags2; /* Additional irq edge / level flags */
88 unsigned char duration1;
89 unsigned char duration2;
90 #define LIS3_WAKEUP_X_LO (1 << 0)
91 #define LIS3_WAKEUP_X_HI (1 << 1)
92 #define LIS3_WAKEUP_Y_LO (1 << 2)
93 #define LIS3_WAKEUP_Y_HI (1 << 3)
94 #define LIS3_WAKEUP_Z_LO (1 << 4)
95 #define LIS3_WAKEUP_Z_HI (1 << 5)
96 unsigned char wakeup_flags;
97 unsigned char wakeup_thresh;
98 unsigned char wakeup_flags2;
99 unsigned char wakeup_thresh2;
100 #define LIS3_HIPASS_CUTFF_8HZ 0
101 #define LIS3_HIPASS_CUTFF_4HZ 1
102 #define LIS3_HIPASS_CUTFF_2HZ 2
103 #define LIS3_HIPASS_CUTFF_1HZ 3
104 #define LIS3_HIPASS1_DISABLE (1 << 2)
105 #define LIS3_HIPASS2_DISABLE (1 << 3)
106 unsigned char hipass_ctrl;
107 #define LIS3_NO_MAP 0
108 #define LIS3_DEV_X 1
109 #define LIS3_DEV_Y 2
110 #define LIS3_DEV_Z 3
111 #define LIS3_INV_DEV_X -1
112 #define LIS3_INV_DEV_Y -2
113 #define LIS3_INV_DEV_Z -3
114 s8 axis_x;
115 s8 axis_y;
116 s8 axis_z;
117 #define LIS3_USE_BLOCK_READ 0x02
118 u16 driver_features;
119 int default_rate;
120 int (*setup_resources)(void);
121 int (*release_resources)(void);
122 /* Limits for selftest are specified in chip data sheet */
123 s16 st_min_limits[3]; /* min pass limit x, y, z */
124 s16 st_max_limits[3]; /* max pass limit x, y, z */
125 int irq2;
126 };
127
128 #endif /* __LIS3LV02D_H_ */