/* SPDX-License-Identifier: GPL-2.0 */
/* linux/spi/ads7846.h */

struct ads7846_platform_data {
    u16    model;            /* 7843, 7845, 7846, 7873. */
    u16    vref_delay_usecs;    /* 0 for external vref; etc */
    u16    vref_mv;        /* external vref value, milliVolts
                     * ads7846: if 0, use internal vref */
    bool    keep_vref_on;        /* set to keep vref on for differential
                     * measurements as well */
    bool    swap_xy;        /* swap x and y axes */

    /* Settling time of the analog signals; a function of Vcc and the
     * capacitance on the X/Y drivers.  If set to non-zero, two samples
     * are taken with settle_delay us apart, and the second one is used.
     * ~150 uSec with 0.01uF caps.
     */
    u16    settle_delay_usecs;

    /* If set to non-zero, after samples are taken this delay is applied
     * and penirq is rechecked, to help avoid false events.  This value
     * is affected by the material used to build the touch layer.
     */
    u16    penirq_recheck_delay_usecs;

    u16    x_plate_ohms;
    u16    y_plate_ohms;

    u16    x_min, x_max;
    u16    y_min, y_max;
    u16    pressure_min, pressure_max;

    u16    debounce_max;        /* max number of additional readings
                     * per sample */
    u16    debounce_tol;        /* tolerance used for filtering */
    u16    debounce_rep;        /* additional consecutive good readings
                     * required after the first two */
    int    gpio_pendown_debounce;    /* platform specific debounce time for
                     * the gpio_pendown */
    int    (*get_pendown_state)(void);
    void    (*wait_for_sync)(void);
    bool    wakeup;
    unsigned long irq_flags;
};