| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| * HID Haptic support for Linux |
| * |
| * Copyright (c) 2021 Angela Czubak <[email protected]> |
| */ |
| |
| /* |
| */ |
| |
| |
| #include <linux/hid.h> |
| |
| #define HID_HAPTIC_ORDINAL_WAVEFORMNONE 1 |
| #define HID_HAPTIC_ORDINAL_WAVEFORMSTOP 2 |
| |
| #define HID_HAPTIC_PRESS_THRESH 200 |
| #define HID_HAPTIC_RELEASE_THRESH 180 |
| |
| #define HID_HAPTIC_MODE_DEVICE 0 |
| #define HID_HAPTIC_MODE_KERNEL 1 |
| |
| struct hid_haptic_effect { |
| u8 *report_buf; |
| struct input_dev *input_dev; |
| struct work_struct work; |
| struct list_head control; |
| struct mutex control_mutex; |
| }; |
| |
| struct hid_haptic_effect_node { |
| struct list_head node; |
| struct file *file; |
| }; |
| |
| struct hid_haptic_device { |
| struct input_dev *input_dev; |
| struct hid_device *hdev; |
| struct hid_report *auto_trigger_report; |
| struct mutex auto_trigger_mutex; |
| struct workqueue_struct *wq; |
| struct hid_report *manual_trigger_report; |
| struct mutex manual_trigger_mutex; |
| size_t manual_trigger_report_len; |
| int pressed_state; |
| s32 pressure_sum; |
| s32 force_logical_minimum; |
| s32 force_physical_minimum; |
| s32 force_resolution; |
| u32 press_threshold; |
| u32 release_threshold; |
| u32 mode; |
| u32 default_auto_trigger; |
| u32 vendor_page; |
| u32 vendor_id; |
| u32 max_waveform_id; |
| u32 max_duration_id; |
| u16 *hid_usage_map; |
| u32 *duration_map; |
| u16 press_ordinal_orig; |
| u16 press_ordinal_cur; |
| u16 release_ordinal_orig; |
| u16 release_ordinal_cur; |
| #define HID_HAPTIC_RELEASE_EFFECT_ID 0 |
| #define HID_HAPTIC_PRESS_EFFECT_ID 1 |
| struct hid_haptic_effect *effect; |
| struct hid_haptic_effect stop_effect; |
| }; |
| |
| #ifdef CONFIG_MULTITOUCH_HAPTIC |
| void hid_haptic_feature_mapping(struct hid_device *hdev, |
| struct hid_haptic_device *haptic, |
| struct hid_field *field, struct hid_usage |
| *usage); |
| bool hid_haptic_check_pressure_unit(struct hid_haptic_device *haptic, |
| struct hid_input *hi, struct hid_field *field); |
| int hid_haptic_input_mapping(struct hid_device *hdev, |
| struct hid_haptic_device *haptic, |
| struct hid_input *hi, |
| struct hid_field *field, struct hid_usage *usage, |
| unsigned long **bit, int *max); |
| int hid_haptic_input_configured(struct hid_device *hdev, |
| struct hid_haptic_device *haptic, |
| struct hid_input *hi); |
| void hid_haptic_reset(struct hid_device *hdev, struct hid_haptic_device *haptic); |
| #ifdef CONFIG_PM |
| void hid_haptic_resume(struct hid_device *hdev, struct hid_haptic_device *haptic); |
| void hid_haptic_suspend(struct hid_device *hdev, struct hid_haptic_device *haptic); |
| #endif |
| int hid_haptic_init(struct hid_device *hdev, struct hid_haptic_device **haptic_ptr); |
| void hid_haptic_handle_press_release(struct hid_haptic_device *haptic); |
| bool hid_haptic_handle_input(struct hid_haptic_device *haptic); |
| void hid_haptic_pressure_reset(struct hid_haptic_device *haptic); |
| void hid_haptic_pressure_increase(struct hid_haptic_device *haptic, |
| __s32 pressure); |
| #else |
| static inline |
| void hid_haptic_feature_mapping(struct hid_device *hdev, |
| struct hid_haptic_device *haptic, |
| struct hid_field *field, struct hid_usage |
| *usage) |
| {} |
| static inline |
| bool hid_haptic_check_pressure_unit(struct hid_haptic_device *haptic, |
| struct hid_input *hi, struct hid_field *field) |
| { |
| return false; |
| } |
| static inline |
| int hid_haptic_input_mapping(struct hid_device *hdev, |
| struct hid_haptic_device *haptic, |
| struct hid_input *hi, |
| struct hid_field *field, struct hid_usage *usage, |
| unsigned long **bit, int *max) |
| { |
| return 0; |
| } |
| static inline |
| int hid_haptic_input_configured(struct hid_device *hdev, |
| struct hid_haptic_device *haptic, |
| struct hid_input *hi) |
| { |
| return 0; |
| } |
| static inline |
| void hid_haptic_reset(struct hid_device *hdev, struct hid_haptic_device *haptic) |
| { |
| } |
| #ifdef CONFIG_PM |
| static inline |
| void hid_haptic_resume(struct hid_device *hdev, struct hid_haptic_device *haptic) {} |
| static inline |
| void hid_haptic_suspend(struct hid_device *hdev, struct hid_haptic_device *haptic) {} |
| #endif |
| static inline |
| int hid_haptic_init(struct hid_device *hdev, struct hid_haptic_device **haptic_ptr) |
| { |
| return 0; |
| } |
| static inline |
| void hid_haptic_handle_press_release(struct hid_haptic_device *haptic) {} |
| static inline |
| bool hid_haptic_handle_input(struct hid_haptic_device *haptic) |
| { |
| return false; |
| } |
| static inline |
| void hid_haptic_pressure_reset(struct hid_haptic_device *haptic) {} |
| static inline |
| void hid_haptic_pressure_increase(struct hid_haptic_device *haptic, |
| __s32 pressure) |
| {} |
| #endif |
