65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
#ifndef _PIXCIR_I2C_TS_H
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#define _PIXCIR_I2C_TS_H
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/*
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* Register map
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*/
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#define PIXCIR_REG_POWER_MODE 51
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#define PIXCIR_REG_INT_MODE 52
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/*
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* Power modes:
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* active: max scan speed
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* idle: lower scan speed with automatic transition to active on touch
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* halt: datasheet says sleep but this is more like halt as the chip
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* clocks are cut and it can only be brought out of this mode
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* using the RESET pin.
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*/
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enum pixcir_power_mode {
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PIXCIR_POWER_ACTIVE,
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PIXCIR_POWER_IDLE,
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PIXCIR_POWER_HALT,
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};
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#define PIXCIR_POWER_MODE_MASK 0x03
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#define PIXCIR_POWER_ALLOW_IDLE (1UL << 2)
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/*
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* Interrupt modes:
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* periodical: interrupt is asserted periodicaly
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* diff coordinates: interrupt is asserted when coordinates change
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* level on touch: interrupt level asserted during touch
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* pulse on touch: interrupt pulse asserted druing touch
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*
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*/
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enum pixcir_int_mode {
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PIXCIR_INT_PERIODICAL,
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PIXCIR_INT_DIFF_COORD,
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PIXCIR_INT_LEVEL_TOUCH,
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PIXCIR_INT_PULSE_TOUCH,
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};
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#define PIXCIR_INT_MODE_MASK 0x03
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#define PIXCIR_INT_ENABLE (1UL << 3)
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#define PIXCIR_INT_POL_HIGH (1UL << 2)
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/**
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* struct pixcir_irc_chip_data - chip related data
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* @max_fingers: Max number of fingers reported simultaneously by h/w
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* @has_hw_ids: Hardware supports finger tracking IDs
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*
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*/
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struct pixcir_i2c_chip_data {
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u8 max_fingers;
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bool has_hw_ids;
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};
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struct pixcir_ts_platform_data {
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int x_max;
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int y_max;
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int gpio_attb; /* GPIO connected to ATTB line */
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struct pixcir_i2c_chip_data chip;
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};
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#endif
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