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/* SPDX-License-Identifier: GPL-2.0 */
/* linux/spi/ads7846.h */
/* Touchscreen characteristics vary between boards and models. The
* platform_data for the device's "struct device" holds this information.
*
* It's OK if the min/max values are zero.
*/
enum ads7846_filter {
ADS7846_FILTER_OK,
ADS7846_FILTER_REPEAT,
ADS7846_FILTER_IGNORE,
};
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; /* the GPIO used to decide the pendown
* state if get_pendown_state == NULL */
int gpio_pendown_debounce; /* platform specific debounce time for
* the gpio_pendown */
int (*get_pendown_state)(void);
int (*filter_init) (const struct ads7846_platform_data *pdata,
void **filter_data);
int (*filter) (void *filter_data, int data_idx, int *val);
void (*filter_cleanup)(void *filter_data);
void (*wait_for_sync)(void);
bool wakeup;
unsigned long irq_flags;
};
| Name | Type | Size | Permission | Actions |
|---|---|---|---|---|
| ad7877.h | File | 835 B | 0644 |
|
| ads7846.h | File | 2.02 KB | 0644 |
|
| altera.h | File | 1.15 KB | 0644 |
|
| at73c213.h | File | 828 B | 0644 |
|
| at86rf230.h | File | 329 B | 0644 |
|
| cc2520.h | File | 410 B | 0644 |
|
| corgi_lcd.h | File | 377 B | 0644 |
|
| ds1305.h | File | 1.08 KB | 0644 |
|
| eeprom.h | File | 1.19 KB | 0644 |
|
| flash.h | File | 1023 B | 0644 |
|
| libertas_spi.h | File | 700 B | 0644 |
|
| max7301.h | File | 939 B | 0644 |
|
| mc33880.h | File | 196 B | 0644 |
|
| mmc_spi.h | File | 1.27 KB | 0644 |
|
| mxs-spi.h | File | 4.8 KB | 0644 |
|
| pxa2xx_spi.h | File | 1.12 KB | 0644 |
|
| rspi.h | File | 304 B | 0644 |
|
| s3c24xx-fiq.h | File | 788 B | 0644 |
|
| s3c24xx.h | File | 684 B | 0644 |
|
| sh_hspi.h | File | 161 B | 0644 |
|
| sh_msiof.h | File | 357 B | 0644 |
|
| spi-fsl-dspi.h | File | 560 B | 0644 |
|
| spi-mem.h | File | 13.29 KB | 0644 |
|
| spi.h | File | 58.9 KB | 0644 |
|
| spi_bitbang.h | File | 1.56 KB | 0644 |
|
| spi_gpio.h | File | 724 B | 0644 |
|
| spi_oc_tiny.h | File | 471 B | 0644 |
|
| tdo24m.h | File | 210 B | 0644 |
|
| tle62x0.h | File | 265 B | 0644 |
|
| xilinx_spi.h | File | 627 B | 0644 |
|