/* 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;
};