439 lines
16 KiB
C
439 lines
16 KiB
C
/* Copyright 2017 Joshua Broekhuijsen <snipeye+qmk@gmail.com>
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* Copyright 2020 Christopher Courtney, aka Drashna Jael're (@drashna) <drashna@live.com>
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* Copyright 2021 Dasky (@daskygit)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "pointing_device.h"
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#include <string.h>
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#include "timer.h"
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#ifdef MOUSEKEY_ENABLE
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# include "mousekey.h"
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#endif
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#if (defined(POINTING_DEVICE_ROTATION_90) + defined(POINTING_DEVICE_ROTATION_180) + defined(POINTING_DEVICE_ROTATION_270)) > 1
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# error More than one rotation selected. This is not supported.
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#endif
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#if defined(SPLIT_POINTING_ENABLE)
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# include "transactions.h"
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# include "keyboard.h"
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report_mouse_t shared_mouse_report = {};
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uint16_t shared_cpi = 0;
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/**
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* @brief Sets the shared mouse report used be pointing device task
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*
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* NOTE : Only available when using SPLIT_POINTING_ENABLE
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*
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* @param[in] new_mouse_report report_mouse_t
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*/
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void pointing_device_set_shared_report(report_mouse_t new_mouse_report) { shared_mouse_report = new_mouse_report; }
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/**
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* @brief Gets current pointing device CPI if supported
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*
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* Gets current cpi of the shared report and returns it as uint16_t
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*
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* NOTE : Only available when using SPLIT_POINTING_ENABLE
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*
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* @return cpi value as uint16_t
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*/
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uint16_t pointing_device_get_shared_cpi(void) { return shared_cpi; }
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# if defined(POINTING_DEVICE_LEFT)
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# define POINTING_DEVICE_THIS_SIDE is_keyboard_left()
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# elif defined(POINTING_DEVICE_RIGHT)
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# define POINTING_DEVICE_THIS_SIDE !is_keyboard_left()
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# elif defined(POINTING_DEVICE_COMBINED)
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# define POINTING_DEVICE_THIS_SIDE true
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# endif
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#endif // defined(SPLIT_POINTING_ENABLE)
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static report_mouse_t local_mouse_report = {};
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extern const pointing_device_driver_t pointing_device_driver;
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/**
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* @brief Compares 2 mouse reports for difference and returns result
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*
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* @param[in] new report_mouse_t
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* @param[in] old report_mouse_t
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* @return bool result
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*/
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__attribute__((weak)) bool has_mouse_report_changed(report_mouse_t new, report_mouse_t old) { return memcmp(&new, &old, sizeof(new)); }
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/**
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* @brief Keyboard level code pointing device initialisation
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*
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*/
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__attribute__((weak)) void pointing_device_init_kb(void) {}
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/**
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* @brief User level code pointing device initialisation
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*
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*/
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__attribute__((weak)) void pointing_device_init_user(void) {}
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/**
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* @brief Weak function allowing for keyboard level mouse report modification
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*
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* Takes report_mouse_t struct allowing modification at keyboard level then returns report_mouse_t.
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*
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* @param[in] mouse_report report_mouse_t
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* @return report_mouse_t
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*/
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__attribute__((weak)) report_mouse_t pointing_device_task_kb(report_mouse_t mouse_report) { return pointing_device_task_user(mouse_report); }
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/**
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* @brief Weak function allowing for user level mouse report modification
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*
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* Takes report_mouse_t struct allowing modification at user level then returns report_mouse_t.
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*
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* @param[in] mouse_report report_mouse_t
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* @return report_mouse_t
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*/
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__attribute__((weak)) report_mouse_t pointing_device_task_user(report_mouse_t mouse_report) { return mouse_report; }
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/**
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* @brief Handles pointing device buttons
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*
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* Returns modified button bitmask using bool pressed and selected pointing_device_buttons_t button in uint8_t buttons bitmask.
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*
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* @param buttons[in] uint8_t bitmask
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* @param pressed[in] bool
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* @param button[in] pointing_device_buttons_t value
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* @return Modified uint8_t bitmask buttons
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*/
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__attribute__((weak)) uint8_t pointing_device_handle_buttons(uint8_t buttons, bool pressed, pointing_device_buttons_t button) {
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if (pressed) {
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buttons |= 1 << (button);
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} else {
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buttons &= ~(1 << (button));
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}
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return buttons;
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}
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/**
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* @brief Initialises pointing device
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*
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* Initialises pointing device, perform driver init and optional keyboard/user level code.
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*/
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__attribute__((weak)) void pointing_device_init(void) {
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#if defined(SPLIT_POINTING_ENABLE)
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if (!(POINTING_DEVICE_THIS_SIDE)) {
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return;
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}
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#endif
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pointing_device_driver.init();
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#ifdef POINTING_DEVICE_MOTION_PIN
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setPinInputHigh(POINTING_DEVICE_MOTION_PIN);
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#endif
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pointing_device_init_kb();
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pointing_device_init_user();
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}
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/**
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* @brief Sends processed mouse report to host
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*
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* This sends the mouse report generated by pointing_device_task if changed since the last report. Once send zeros mouse report except buttons.
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*
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*/
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__attribute__((weak)) void pointing_device_send(void) {
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static report_mouse_t old_report = {};
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// If you need to do other things, like debugging, this is the place to do it.
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if (has_mouse_report_changed(local_mouse_report, old_report)) {
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host_mouse_send(&local_mouse_report);
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}
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// send it and 0 it out except for buttons, so those stay until they are explicity over-ridden using update_pointing_device
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local_mouse_report.x = 0;
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local_mouse_report.y = 0;
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local_mouse_report.v = 0;
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local_mouse_report.h = 0;
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memcpy(&old_report, &local_mouse_report, sizeof(local_mouse_report));
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}
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/**
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* @brief Adjust mouse report by any optional common pointing configuration defines
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*
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* This applies rotation or inversion to the mouse report as selected by the pointing device common configuration defines.
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*
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* @param mouse_report[in] takes a report_mouse_t to be adjusted
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* @return report_mouse_t with adjusted values
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*/
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report_mouse_t pointing_device_adjust_by_defines(report_mouse_t mouse_report) {
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// Support rotation of the sensor data
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#if defined(POINTING_DEVICE_ROTATION_90) || defined(POINTING_DEVICE_ROTATION_180) || defined(POINTING_DEVICE_ROTATION_270)
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int8_t x = mouse_report.x, y = mouse_report.y;
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# if defined(POINTING_DEVICE_ROTATION_90)
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mouse_report.x = y;
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mouse_report.y = -x;
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# elif defined(POINTING_DEVICE_ROTATION_180)
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mouse_report.x = -x;
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mouse_report.y = -y;
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# elif defined(POINTING_DEVICE_ROTATION_270)
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mouse_report.x = -y;
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mouse_report.y = x;
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# else
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# error "How the heck did you get here?!"
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# endif
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#endif
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// Support Inverting the X and Y Axises
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#if defined(POINTING_DEVICE_INVERT_X)
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mouse_report.x = -mouse_report.x;
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#endif
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#if defined(POINTING_DEVICE_INVERT_Y)
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mouse_report.y = -mouse_report.y;
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#endif
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return mouse_report;
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}
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/**
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* @brief Retrieves and processes pointing device data.
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*
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* This function is part of the keyboard loop and retrieves the mouse report from the pointing device driver.
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* It applies any optional configuration e.g. rotation or axis inversion and then initiates a send.
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*
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*/
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__attribute__((weak)) void pointing_device_task(void) {
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#if defined(SPLIT_POINTING_ENABLE)
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// Don't poll the target side pointing device.
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if (!is_keyboard_master()) {
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return;
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};
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#endif
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#if (POINTING_DEVICE_TASK_THROTTLE_MS > 0)
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static uint32_t last_exec = 0;
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if (timer_elapsed32(last_exec) < POINTING_DEVICE_TASK_THROTTLE_MS) {
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return;
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}
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last_exec = timer_read32();
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#endif
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// Gather report info
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#ifdef POINTING_DEVICE_MOTION_PIN
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# if defined(SPLIT_POINTING_ENABLE)
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# error POINTING_DEVICE_MOTION_PIN not supported when sharing the pointing device report between sides.
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# endif
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if (!readPin(POINTING_DEVICE_MOTION_PIN))
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#endif
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#if defined(SPLIT_POINTING_ENABLE)
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# if defined(POINTING_DEVICE_COMBINED)
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static uint8_t old_buttons = 0;
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local_mouse_report.buttons = old_buttons;
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local_mouse_report = pointing_device_driver.get_report(local_mouse_report);
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old_buttons = local_mouse_report.buttons;
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# elif defined(POINTING_DEVICE_LEFT) || defined(POINTING_DEVICE_RIGHT)
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local_mouse_report = POINTING_DEVICE_THIS_SIDE ? pointing_device_driver.get_report(local_mouse_report) : shared_mouse_report;
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# else
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# error "You need to define the side(s) the pointing device is on. POINTING_DEVICE_COMBINED / POINTING_DEVICE_LEFT / POINTING_DEVICE_RIGHT"
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# endif
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#else
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local_mouse_report = pointing_device_driver.get_report(local_mouse_report);
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#endif // defined(SPLIT_POINTING_ENABLE)
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// allow kb to intercept and modify report
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#if defined(SPLIT_POINTING_ENABLE) && defined(POINTING_DEVICE_COMBINED)
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if (is_keyboard_left()) {
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local_mouse_report = pointing_device_adjust_by_defines(local_mouse_report);
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shared_mouse_report = pointing_device_adjust_by_defines_right(shared_mouse_report);
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} else {
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local_mouse_report = pointing_device_adjust_by_defines_right(local_mouse_report);
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shared_mouse_report = pointing_device_adjust_by_defines(shared_mouse_report);
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}
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local_mouse_report = is_keyboard_left() ? pointing_device_task_combined_kb(local_mouse_report, shared_mouse_report) : pointing_device_task_combined_kb(shared_mouse_report, local_mouse_report);
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#else
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local_mouse_report = pointing_device_adjust_by_defines(local_mouse_report);
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local_mouse_report = pointing_device_task_kb(local_mouse_report);
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#endif
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// combine with mouse report to ensure that the combined is sent correctly
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#ifdef MOUSEKEY_ENABLE
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report_mouse_t mousekey_report = mousekey_get_report();
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local_mouse_report.buttons = local_mouse_report.buttons | mousekey_report.buttons;
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#endif
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pointing_device_send();
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}
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/**
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* @brief Gets current mouse report used by pointing device task
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*
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* @return report_mouse_t
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*/
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report_mouse_t pointing_device_get_report(void) { return local_mouse_report; }
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/**
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* @brief Sets mouse report used be pointing device task
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*
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* @param[in] new_mouse_report
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*/
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void pointing_device_set_report(report_mouse_t new_mouse_report) { local_mouse_report = new_mouse_report; }
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/**
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* @brief Gets current pointing device CPI if supported
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*
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* Gets current cpi from pointing device driver if supported and returns it as uint16_t
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*
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* @return cpi value as uint16_t
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*/
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uint16_t pointing_device_get_cpi(void) {
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#if defined(SPLIT_POINTING_ENABLE)
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return POINTING_DEVICE_THIS_SIDE ? pointing_device_driver.get_cpi() : shared_cpi;
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#else
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return pointing_device_driver.get_cpi();
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#endif
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}
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/**
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* @brief Set pointing device CPI if supported
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*
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* Takes a uint16_t value to set pointing device cpi if supported by driver.
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*
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* @param[in] cpi uint16_t value.
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*/
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void pointing_device_set_cpi(uint16_t cpi) {
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#if defined(SPLIT_POINTING_ENABLE)
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if (POINTING_DEVICE_THIS_SIDE) {
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pointing_device_driver.set_cpi(cpi);
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} else {
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shared_cpi = cpi;
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}
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#else
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pointing_device_driver.set_cpi(cpi);
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#endif
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}
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#if defined(SPLIT_POINTING_ENABLE) && defined(POINTING_DEVICE_COMBINED)
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/**
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* @brief Set pointing device CPI if supported
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*
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* Takes a bool and uint16_t and allows setting cpi for a single side when using 2 pointing devices with a split keyboard.
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*
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* NOTE: Only available when using SPLIT_POINTING_ENABLE and POINTING_DEVICE_COMBINED
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*
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* @param[in] left true = left, false = right.
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* @param[in] cpi uint16_t value.
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*/
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void pointing_device_set_cpi_on_side(bool left, uint16_t cpi) {
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bool local = (is_keyboard_left() & left) ? true : false;
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if (local) {
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pointing_device_driver.set_cpi(cpi);
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} else {
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shared_cpi = cpi;
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}
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}
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/**
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* @brief clamps int16_t to int8_t
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*
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* @param[in] int16_t value
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* @return int8_t clamped value
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*/
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static inline int8_t pointing_device_movement_clamp(int16_t value) {
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if (value < INT8_MIN) {
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return INT8_MIN;
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} else if (value > INT8_MAX) {
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return INT8_MAX;
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} else {
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return value;
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}
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}
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/**
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* @brief combines 2 mouse reports and returns 2
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*
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* Combines 2 report_mouse_t structs, clamping movement values to int8_t and ignores report_id then returns the resulting report_mouse_t struct.
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*
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* NOTE: Only available when using SPLIT_POINTING_ENABLE and POINTING_DEVICE_COMBINED
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*
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* @param[in] left_report left report_mouse_t
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* @param[in] right_report right report_mouse_t
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* @return combined report_mouse_t of left_report and right_report
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*/
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report_mouse_t pointing_device_combine_reports(report_mouse_t left_report, report_mouse_t right_report) {
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left_report.x = pointing_device_movement_clamp((int16_t)left_report.x + right_report.x);
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left_report.y = pointing_device_movement_clamp((int16_t)left_report.y + right_report.y);
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left_report.h = pointing_device_movement_clamp((int16_t)left_report.h + right_report.h);
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left_report.v = pointing_device_movement_clamp((int16_t)left_report.v + right_report.v);
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left_report.buttons |= right_report.buttons;
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return left_report;
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}
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/**
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* @brief Adjust mouse report by any optional right pointing configuration defines
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*
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* This applies rotation or inversion to the mouse report as selected by the pointing device common configuration defines.
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*
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* NOTE: Only available when using SPLIT_POINTING_ENABLE and POINTING_DEVICE_COMBINED
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*
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* @param[in] mouse_report report_mouse_t to be adjusted
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* @return report_mouse_t with adjusted values
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*/
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report_mouse_t pointing_device_adjust_by_defines_right(report_mouse_t mouse_report) {
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// Support rotation of the sensor data
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# if defined(POINTING_DEVICE_ROTATION_90_RIGHT) || defined(POINTING_DEVICE_ROTATION_RIGHT) || defined(POINTING_DEVICE_ROTATION_RIGHT)
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int8_t x = mouse_report.x, y = mouse_report.y;
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# if defined(POINTING_DEVICE_ROTATION_90_RIGHT)
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mouse_report.x = y;
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mouse_report.y = -x;
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# elif defined(POINTING_DEVICE_ROTATION_180_RIGHT)
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mouse_report.x = -x;
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mouse_report.y = -y;
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# elif defined(POINTING_DEVICE_ROTATION_270_RIGHT)
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mouse_report.x = -y;
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mouse_report.y = x;
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# else
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# error "How the heck did you get here?!"
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# endif
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# endif
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// Support Inverting the X and Y Axises
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# if defined(POINTING_DEVICE_INVERT_X_RIGHT)
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mouse_report.x = -mouse_report.x;
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# endif
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# if defined(POINTING_DEVICE_INVERT_Y_RIGHT)
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mouse_report.y = -mouse_report.y;
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# endif
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return mouse_report;
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}
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/**
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* @brief Weak function allowing for keyboard level mouse report modification
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*
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* Takes 2 report_mouse_t structs allowing individual modification of sides at keyboard level then returns pointing_device_task_combined_user.
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*
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* NOTE: Only available when using SPLIT_POINTING_ENABLE and POINTING_DEVICE_COMBINED
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*
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* @param[in] left_report report_mouse_t
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* @param[in] right_report report_mouse_t
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* @return pointing_device_task_combined_user(left_report, right_report) by default
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*/
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__attribute__((weak)) report_mouse_t pointing_device_task_combined_kb(report_mouse_t left_report, report_mouse_t right_report) { return pointing_device_task_combined_user(left_report, right_report); }
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/**
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* @brief Weak function allowing for user level mouse report modification
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*
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* Takes 2 report_mouse_t structs allowing individual modification of sides at user level then returns pointing_device_combine_reports.
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*
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* NOTE: Only available when using SPLIT_POINTING_ENABLE and POINTING_DEVICE_COMBINED
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*
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* @param[in] left_report report_mouse_t
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* @param[in] right_report report_mouse_t
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* @return pointing_device_combine_reports(left_report, right_report) by default
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*/
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__attribute__((weak)) report_mouse_t pointing_device_task_combined_user(report_mouse_t left_report, report_mouse_t right_report) { return pointing_device_combine_reports(left_report, right_report); }
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#endif
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