80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _TSC200X_CORE_H
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#define _TSC200X_CORE_H
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/* control byte 1 */
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#define TSC200X_CMD 0x80
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#define TSC200X_CMD_NORMAL 0x00
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#define TSC200X_CMD_STOP 0x01
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#define TSC200X_CMD_12BIT 0x04
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/* control byte 0 */
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#define TSC200X_REG_READ 0x01 /* R/W access */
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#define TSC200X_REG_PND0 0x02 /* Power Not Down Control */
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#define TSC200X_REG_X (0x0 << 3)
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#define TSC200X_REG_Y (0x1 << 3)
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#define TSC200X_REG_Z1 (0x2 << 3)
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#define TSC200X_REG_Z2 (0x3 << 3)
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#define TSC200X_REG_AUX (0x4 << 3)
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#define TSC200X_REG_TEMP1 (0x5 << 3)
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#define TSC200X_REG_TEMP2 (0x6 << 3)
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#define TSC200X_REG_STATUS (0x7 << 3)
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#define TSC200X_REG_AUX_HIGH (0x8 << 3)
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#define TSC200X_REG_AUX_LOW (0x9 << 3)
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#define TSC200X_REG_TEMP_HIGH (0xA << 3)
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#define TSC200X_REG_TEMP_LOW (0xB << 3)
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#define TSC200X_REG_CFR0 (0xC << 3)
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#define TSC200X_REG_CFR1 (0xD << 3)
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#define TSC200X_REG_CFR2 (0xE << 3)
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#define TSC200X_REG_CONV_FUNC (0xF << 3)
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/* configuration register 0 */
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#define TSC200X_CFR0_PRECHARGE_276US 0x0040
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#define TSC200X_CFR0_STABTIME_1MS 0x0300
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#define TSC200X_CFR0_CLOCK_1MHZ 0x1000
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#define TSC200X_CFR0_RESOLUTION12 0x2000
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#define TSC200X_CFR0_PENMODE 0x8000
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#define TSC200X_CFR0_INITVALUE (TSC200X_CFR0_STABTIME_1MS | \
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TSC200X_CFR0_CLOCK_1MHZ | \
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TSC200X_CFR0_RESOLUTION12 | \
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TSC200X_CFR0_PRECHARGE_276US | \
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TSC200X_CFR0_PENMODE)
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/* bits common to both read and write of configuration register 0 */
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#define TSC200X_CFR0_RW_MASK 0x3fff
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/* configuration register 1 */
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#define TSC200X_CFR1_BATCHDELAY_4MS 0x0003
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#define TSC200X_CFR1_INITVALUE TSC200X_CFR1_BATCHDELAY_4MS
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/* configuration register 2 */
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#define TSC200X_CFR2_MAVE_Z 0x0004
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#define TSC200X_CFR2_MAVE_Y 0x0008
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#define TSC200X_CFR2_MAVE_X 0x0010
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#define TSC200X_CFR2_AVG_7 0x0800
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#define TSC200X_CFR2_MEDIUM_15 0x3000
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#define TSC200X_CFR2_INITVALUE (TSC200X_CFR2_MAVE_X | \
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TSC200X_CFR2_MAVE_Y | \
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TSC200X_CFR2_MAVE_Z | \
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TSC200X_CFR2_MEDIUM_15 | \
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TSC200X_CFR2_AVG_7)
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#define MAX_12BIT 0xfff
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#define TSC200X_DEF_X_FUZZ 4
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#define TSC200X_DEF_Y_FUZZ 8
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#define TSC200X_DEF_P_FUZZ 2
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#define TSC200X_DEF_RESISTOR 280
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#define TSC2005_SPI_MAX_SPEED_HZ 10000000
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#define TSC200X_PENUP_TIME_MS 40
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extern const struct regmap_config tsc200x_regmap_config;
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extern const struct dev_pm_ops tsc200x_pm_ops;
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int tsc200x_probe(struct device *dev, int irq, const struct input_id *tsc_id,
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struct regmap *regmap,
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int (*tsc200x_cmd)(struct device *dev, u8 cmd));
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void tsc200x_remove(struct device *dev);
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#endif
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