1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _TSC200X_CORE_H
3#define _TSC200X_CORE_H
4
5/* control byte 1 */
6#define TSC200X_CMD 0x80
7#define TSC200X_CMD_NORMAL 0x00
8#define TSC200X_CMD_STOP 0x01
9#define TSC200X_CMD_12BIT 0x04
10
11/* control byte 0 */
12#define TSC200X_REG_READ 0x01 /* R/W access */
13#define TSC200X_REG_PND0 0x02 /* Power Not Down Control */
14#define TSC200X_REG_X (0x0 << 3)
15#define TSC200X_REG_Y (0x1 << 3)
16#define TSC200X_REG_Z1 (0x2 << 3)
17#define TSC200X_REG_Z2 (0x3 << 3)
18#define TSC200X_REG_AUX (0x4 << 3)
19#define TSC200X_REG_TEMP1 (0x5 << 3)
20#define TSC200X_REG_TEMP2 (0x6 << 3)
21#define TSC200X_REG_STATUS (0x7 << 3)
22#define TSC200X_REG_AUX_HIGH (0x8 << 3)
23#define TSC200X_REG_AUX_LOW (0x9 << 3)
24#define TSC200X_REG_TEMP_HIGH (0xA << 3)
25#define TSC200X_REG_TEMP_LOW (0xB << 3)
26#define TSC200X_REG_CFR0 (0xC << 3)
27#define TSC200X_REG_CFR1 (0xD << 3)
28#define TSC200X_REG_CFR2 (0xE << 3)
29#define TSC200X_REG_CONV_FUNC (0xF << 3)
30
31/* configuration register 0 */
32#define TSC200X_CFR0_PRECHARGE_276US 0x0040
33#define TSC200X_CFR0_STABTIME_1MS 0x0300
34#define TSC200X_CFR0_CLOCK_1MHZ 0x1000
35#define TSC200X_CFR0_RESOLUTION12 0x2000
36#define TSC200X_CFR0_PENMODE 0x8000
37#define TSC200X_CFR0_INITVALUE (TSC200X_CFR0_STABTIME_1MS | \
38 TSC200X_CFR0_CLOCK_1MHZ | \
39 TSC200X_CFR0_RESOLUTION12 | \
40 TSC200X_CFR0_PRECHARGE_276US | \
41 TSC200X_CFR0_PENMODE)
42
43/* bits common to both read and write of configuration register 0 */
44#define TSC200X_CFR0_RW_MASK 0x3fff
45
46/* configuration register 1 */
47#define TSC200X_CFR1_BATCHDELAY_4MS 0x0003
48#define TSC200X_CFR1_INITVALUE TSC200X_CFR1_BATCHDELAY_4MS
49
50/* configuration register 2 */
51#define TSC200X_CFR2_MAVE_Z 0x0004
52#define TSC200X_CFR2_MAVE_Y 0x0008
53#define TSC200X_CFR2_MAVE_X 0x0010
54#define TSC200X_CFR2_AVG_7 0x0800
55#define TSC200X_CFR2_MEDIUM_15 0x3000
56#define TSC200X_CFR2_INITVALUE (TSC200X_CFR2_MAVE_X | \
57 TSC200X_CFR2_MAVE_Y | \
58 TSC200X_CFR2_MAVE_Z | \
59 TSC200X_CFR2_MEDIUM_15 | \
60 TSC200X_CFR2_AVG_7)
61
62#define MAX_12BIT 0xfff
63#define TSC200X_DEF_X_FUZZ 4
64#define TSC200X_DEF_Y_FUZZ 8
65#define TSC200X_DEF_P_FUZZ 2
66#define TSC200X_DEF_RESISTOR 280
67
68#define TSC2005_SPI_MAX_SPEED_HZ 10000000
69#define TSC200X_PENUP_TIME_MS 40
70
71extern const struct regmap_config tsc200x_regmap_config;
72extern const struct dev_pm_ops tsc200x_pm_ops;
73
74int tsc200x_probe(struct device *dev, int irq, const struct input_id *tsc_id,
75 struct regmap *regmap,
76 int (*tsc200x_cmd)(struct device *dev, u8 cmd));
77void tsc200x_remove(struct device *dev);
78
79#endif
80

source code of linux/drivers/input/touchscreen/tsc200x-core.h