This source file includes following definitions.
- tsc2007_iio_configure
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19 #ifndef _TSC2007_H
20 #define _TSC2007_H
21
22 #define TSC2007_MEASURE_TEMP0 (0x0 << 4)
23 #define TSC2007_MEASURE_AUX (0x2 << 4)
24 #define TSC2007_MEASURE_TEMP1 (0x4 << 4)
25 #define TSC2007_ACTIVATE_XN (0x8 << 4)
26 #define TSC2007_ACTIVATE_YN (0x9 << 4)
27 #define TSC2007_ACTIVATE_YP_XN (0xa << 4)
28 #define TSC2007_SETUP (0xb << 4)
29 #define TSC2007_MEASURE_X (0xc << 4)
30 #define TSC2007_MEASURE_Y (0xd << 4)
31 #define TSC2007_MEASURE_Z1 (0xe << 4)
32 #define TSC2007_MEASURE_Z2 (0xf << 4)
33
34 #define TSC2007_POWER_OFF_IRQ_EN (0x0 << 2)
35 #define TSC2007_ADC_ON_IRQ_DIS0 (0x1 << 2)
36 #define TSC2007_ADC_OFF_IRQ_EN (0x2 << 2)
37 #define TSC2007_ADC_ON_IRQ_DIS1 (0x3 << 2)
38
39 #define TSC2007_12BIT (0x0 << 1)
40 #define TSC2007_8BIT (0x1 << 1)
41
42 #define MAX_12BIT ((1 << 12) - 1)
43
44 #define ADC_ON_12BIT (TSC2007_12BIT | TSC2007_ADC_ON_IRQ_DIS0)
45
46 #define READ_Y (ADC_ON_12BIT | TSC2007_MEASURE_Y)
47 #define READ_Z1 (ADC_ON_12BIT | TSC2007_MEASURE_Z1)
48 #define READ_Z2 (ADC_ON_12BIT | TSC2007_MEASURE_Z2)
49 #define READ_X (ADC_ON_12BIT | TSC2007_MEASURE_X)
50 #define PWRDOWN (TSC2007_12BIT | TSC2007_POWER_OFF_IRQ_EN)
51
52 struct ts_event {
53 u16 x;
54 u16 y;
55 u16 z1, z2;
56 };
57
58 struct tsc2007 {
59 struct input_dev *input;
60 char phys[32];
61
62 struct i2c_client *client;
63
64 u16 model;
65 u16 x_plate_ohms;
66 u16 max_rt;
67 unsigned long poll_period;
68 int fuzzx;
69 int fuzzy;
70 int fuzzz;
71
72 unsigned int gpio;
73 int irq;
74
75 wait_queue_head_t wait;
76 bool stopped;
77
78 int (*get_pendown_state)(struct device *);
79 void (*clear_penirq)(void);
80
81 struct mutex mlock;
82 };
83
84 int tsc2007_xfer(struct tsc2007 *tsc, u8 cmd);
85 u32 tsc2007_calculate_resistance(struct tsc2007 *tsc, struct ts_event *tc);
86 bool tsc2007_is_pen_down(struct tsc2007 *ts);
87
88 #if IS_ENABLED(CONFIG_TOUCHSCREEN_TSC2007_IIO)
89
90 int tsc2007_iio_configure(struct tsc2007 *ts);
91 #else
92 static inline int tsc2007_iio_configure(struct tsc2007 *ts)
93 {
94 return 0;
95 }
96 #endif
97
98 #endif