projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 3bfd5c5b HS |
2 | #ifndef _INPUT_GPIO_TILT_H |
| 3 | #define _INPUT_GPIO_TILT_H | |
| 4 | ||
| 5 | /** | |
| 6 | * struct gpio_tilt_axis - Axis used by the tilt switch | |
| 7 | * @axis: Constant describing the axis, e.g. ABS_X | |
| 8 | * @min: minimum value for abs_param | |
| 9 | * @max: maximum value for abs_param | |
| 10 | * @fuzz: fuzz value for abs_param | |
| 11 | * @flat: flat value for abs_param | |
| 12 | */ | |
| 13 | struct gpio_tilt_axis { | |
| 14 | int axis; | |
| 15 | int min; | |
| 16 | int max; | |
| 17 | int fuzz; | |
| 18 | int flat; | |
| 19 | }; | |
| 20 | ||
| 21 | /** | |
| 22 | * struct gpio_tilt_state - state description | |
| 23 | * @gpios: bitfield of gpio target-states for the value | |
| 24 | * @axes: array containing the axes settings for the gpio state | |
| 25 | * The array indizes must correspond to the axes defined | |
| 26 | * in platform_data | |
| 27 | * | |
| 28 | * This structure describes a supported axis settings | |
| 29 | * and the necessary gpio-state which represent it. | |
| 30 | * | |
| 31 | * The n-th bit in the bitfield describes the state of the n-th GPIO | |
| 32 | * from the gpios-array defined in gpio_regulator_config below. | |
| 33 | */ | |
| 34 | struct gpio_tilt_state { | |
| 35 | int gpios; | |
| 36 | int *axes; | |
| 37 | }; | |
| 38 | ||
| 39 | /** | |
| 40 | * struct gpio_tilt_platform_data | |
| 41 | * @gpios: Array containing the gpios determining the tilt state | |
| 42 | * @nr_gpios: Number of gpios | |
| 43 | * @axes: Array of gpio_tilt_axis descriptions | |
| 44 | * @nr_axes: Number of axes | |
| 45 | * @states: Array of gpio_tilt_state entries describing | |
| 46 | * the gpio state for specific tilts | |
| 47 | * @nr_states: Number of states available | |
| 48 | * @debounce_interval: debounce ticks interval in msecs | |
| 49 | * @poll_interval: polling interval in msecs - for polling driver only | |
| 50 | * @enable: callback to enable the tilt switch | |
| 51 | * @disable: callback to disable the tilt switch | |
| 52 | * | |
| 53 | * This structure contains gpio-tilt-switch configuration | |
| 54 | * information that must be passed by platform code to the | |
| 55 | * gpio-tilt input driver. | |
| 56 | */ | |
| 57 | struct gpio_tilt_platform_data { | |
| 58 | struct gpio *gpios; | |
| 59 | int nr_gpios; | |
| 60 | ||
| 61 | struct gpio_tilt_axis *axes; | |
| 62 | int nr_axes; | |
| 63 | ||
| 64 | struct gpio_tilt_state *states; | |
| 65 | int nr_states; | |
| 66 | ||
| 67 | int debounce_interval; | |
| 68 | ||
| 69 | unsigned int poll_interval; | |
| 70 | int (*enable)(struct device *dev); | |
| 71 | void (*disable)(struct device *dev); | |
| 72 | }; | |
| 73 | ||
| 74 | #endif |