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Diffstat (limited to 'quantum/pointing_device/pointing_device.c')
| -rw-r--r-- | quantum/pointing_device/pointing_device.c | 470 |
1 files changed, 470 insertions, 0 deletions
diff --git a/quantum/pointing_device/pointing_device.c b/quantum/pointing_device/pointing_device.c new file mode 100644 index 0000000000..09f9e5efb7 --- /dev/null +++ b/quantum/pointing_device/pointing_device.c @@ -0,0 +1,470 @@ +/* Copyright 2017 Joshua Broekhuijsen <snipeye+qmk@gmail.com> + * Copyright 2020 Christopher Courtney, aka Drashna Jael're (@drashna) <drashna@live.com> + * Copyright 2021 Dasky (@daskygit) + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "pointing_device.h" +#include <string.h> +#include "timer.h" +#ifdef MOUSEKEY_ENABLE +# include "mousekey.h" +#endif +#if (defined(POINTING_DEVICE_ROTATION_90) + defined(POINTING_DEVICE_ROTATION_180) + defined(POINTING_DEVICE_ROTATION_270)) > 1 +# error More than one rotation selected. This is not supported. +#endif + +#if defined(POINTING_DEVICE_LEFT) || defined(POINTING_DEVICE_RIGHT) || defined(POINTING_DEVICE_COMBINED) +# ifndef SPLIT_POINTING_ENABLE +# error "Using POINTING_DEVICE_LEFT or POINTING_DEVICE_RIGHT or POINTING_DEVICE_COMBINED, then SPLIT_POINTING_ENABLE is required but has not been defined" +# endif +#endif + +#if defined(SPLIT_POINTING_ENABLE) +# include "transactions.h" +# include "keyboard.h" + +report_mouse_t shared_mouse_report = {}; +uint16_t shared_cpi = 0; + +/** + * @brief Sets the shared mouse report used be pointing device task + * + * NOTE : Only available when using SPLIT_POINTING_ENABLE + * + * @param[in] new_mouse_report report_mouse_t + */ +void pointing_device_set_shared_report(report_mouse_t new_mouse_report) { + shared_mouse_report = new_mouse_report; +} + +/** + * @brief Gets current pointing device CPI if supported + * + * Gets current cpi of the shared report and returns it as uint16_t + * + * NOTE : Only available when using SPLIT_POINTING_ENABLE + * + * @return cpi value as uint16_t + */ +uint16_t pointing_device_get_shared_cpi(void) { + return shared_cpi; +} + +# if defined(POINTING_DEVICE_LEFT) +# define POINTING_DEVICE_THIS_SIDE is_keyboard_left() +# elif defined(POINTING_DEVICE_RIGHT) +# define POINTING_DEVICE_THIS_SIDE !is_keyboard_left() +# elif defined(POINTING_DEVICE_COMBINED) +# define POINTING_DEVICE_THIS_SIDE true +# endif + +#endif // defined(SPLIT_POINTING_ENABLE) + +static report_mouse_t local_mouse_report = {}; + +extern const pointing_device_driver_t pointing_device_driver; + +/** + * @brief Keyboard level code pointing device initialisation + * + */ +__attribute__((weak)) void pointing_device_init_kb(void) {} + +/** + * @brief User level code pointing device initialisation + * + */ +__attribute__((weak)) void pointing_device_init_user(void) {} + +/** + * @brief Weak function allowing for keyboard level mouse report modification + * + * Takes report_mouse_t struct allowing modification at keyboard level then returns report_mouse_t. + * + * @param[in] mouse_report report_mouse_t + * @return report_mouse_t + */ +__attribute__((weak)) report_mouse_t pointing_device_task_kb(report_mouse_t mouse_report) { + return pointing_device_task_user(mouse_report); +} + +/** + * @brief Weak function allowing for user level mouse report modification + * + * Takes report_mouse_t struct allowing modification at user level then returns report_mouse_t. + * + * @param[in] mouse_report report_mouse_t + * @return report_mouse_t + */ +__attribute__((weak)) report_mouse_t pointing_device_task_user(report_mouse_t mouse_report) { + return mouse_report; +} + +/** + * @brief Handles pointing device buttons + * + * Returns modified button bitmask using bool pressed and selected pointing_device_buttons_t button in uint8_t buttons bitmask. + * + * @param buttons[in] uint8_t bitmask + * @param pressed[in] bool + * @param button[in] pointing_device_buttons_t value + * @return Modified uint8_t bitmask buttons + */ +__attribute__((weak)) uint8_t pointing_device_handle_buttons(uint8_t buttons, bool pressed, pointing_device_buttons_t button) { + if (pressed) { + buttons |= 1 << (button); + } else { + buttons &= ~(1 << (button)); + } + return buttons; +} + +/** + * @brief Initialises pointing device + * + * Initialises pointing device, perform driver init and optional keyboard/user level code. + */ +__attribute__((weak)) void pointing_device_init(void) { +#if defined(SPLIT_POINTING_ENABLE) + if (!(POINTING_DEVICE_THIS_SIDE)) { + return; + } +#endif + pointing_device_driver.init(); +#ifdef POINTING_DEVICE_MOTION_PIN + setPinInputHigh(POINTING_DEVICE_MOTION_PIN); +#endif + pointing_device_init_kb(); + pointing_device_init_user(); +} + +/** + * @brief Sends processed mouse report to host + * + * This sends the mouse report generated by pointing_device_task if changed since the last report. Once send zeros mouse report except buttons. + * + */ +__attribute__((weak)) void pointing_device_send(void) { + static report_mouse_t old_report = {}; + + // If you need to do other things, like debugging, this is the place to do it. + if (has_mouse_report_changed(&local_mouse_report, &old_report)) { + host_mouse_send(&local_mouse_report); + } + // send it and 0 it out except for buttons, so those stay until they are explicity over-ridden using update_pointing_device + local_mouse_report.x = 0; + local_mouse_report.y = 0; + local_mouse_report.v = 0; + local_mouse_report.h = 0; + + memcpy(&old_report, &local_mouse_report, sizeof(local_mouse_report)); +} + +/** + * @brief Adjust mouse report by any optional common pointing configuration defines + * + * This applies rotation or inversion to the mouse report as selected by the pointing device common configuration defines. + * + * @param mouse_report[in] takes a report_mouse_t to be adjusted + * @return report_mouse_t with adjusted values + */ +report_mouse_t pointing_device_adjust_by_defines(report_mouse_t mouse_report) { + // Support rotation of the sensor data +#if defined(POINTING_DEVICE_ROTATION_90) || defined(POINTING_DEVICE_ROTATION_180) || defined(POINTING_DEVICE_ROTATION_270) + mouse_xy_report_t x = mouse_report.x; + mouse_xy_report_t y = mouse_report.y; +# if defined(POINTING_DEVICE_ROTATION_90) + mouse_report.x = y; + mouse_report.y = -x; +# elif defined(POINTING_DEVICE_ROTATION_180) + mouse_report.x = -x; + mouse_report.y = -y; +# elif defined(POINTING_DEVICE_ROTATION_270) + mouse_report.x = -y; + mouse_report.y = x; +# else +# error "How the heck did you get here?!" +# endif +#endif + // Support Inverting the X and Y Axises +#if defined(POINTING_DEVICE_INVERT_X) + mouse_report.x = -mouse_report.x; +#endif +#if defined(POINTING_DEVICE_INVERT_Y) + mouse_report.y = -mouse_report.y; +#endif + return mouse_report; +} + +/** + * @brief Retrieves and processes pointing device data. + * + * This function is part of the keyboard loop and retrieves the mouse report from the pointing device driver. + * It applies any optional configuration e.g. rotation or axis inversion and then initiates a send. + * + */ +__attribute__((weak)) void pointing_device_task(void) { +#if defined(SPLIT_POINTING_ENABLE) + // Don't poll the target side pointing device. + if (!is_keyboard_master()) { + return; + }; +#endif + +#if (POINTING_DEVICE_TASK_THROTTLE_MS > 0) + static uint32_t last_exec = 0; + if (timer_elapsed32(last_exec) < POINTING_DEVICE_TASK_THROTTLE_MS) { + return; + } + last_exec = timer_read32(); +#endif + + // Gather report info +#ifdef POINTING_DEVICE_MOTION_PIN +# if defined(SPLIT_POINTING_ENABLE) +# error POINTING_DEVICE_MOTION_PIN not supported when sharing the pointing device report between sides. +# endif + if (!readPin(POINTING_DEVICE_MOTION_PIN)) +#endif + +#if defined(SPLIT_POINTING_ENABLE) +# if defined(POINTING_DEVICE_COMBINED) + static uint8_t old_buttons = 0; + local_mouse_report.buttons = old_buttons; + local_mouse_report = pointing_device_driver.get_report(local_mouse_report); + old_buttons = local_mouse_report.buttons; +# elif defined(POINTING_DEVICE_LEFT) || defined(POINTING_DEVICE_RIGHT) + local_mouse_report = POINTING_DEVICE_THIS_SIDE ? pointing_device_driver.get_report(local_mouse_report) : shared_mouse_report; +# else +# error "You need to define the side(s) the pointing device is on. POINTING_DEVICE_COMBINED / POINTING_DEVICE_LEFT / POINTING_DEVICE_RIGHT" +# endif +#else + local_mouse_report = pointing_device_driver.get_report(local_mouse_report); +#endif // defined(SPLIT_POINTING_ENABLE) + + // allow kb to intercept and modify report +#if defined(SPLIT_POINTING_ENABLE) && defined(POINTING_DEVICE_COMBINED) + if (is_keyboard_left()) { + local_mouse_report = pointing_device_adjust_by_defines(local_mouse_report); + shared_mouse_report = pointing_device_adjust_by_defines_right(shared_mouse_report); + } else { + local_mouse_report = pointing_device_adjust_by_defines_right(local_mouse_report); + shared_mouse_report = pointing_device_adjust_by_defines(shared_mouse_report); + } + 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); +#else + local_mouse_report = pointing_device_adjust_by_defines(local_mouse_report); + local_mouse_report = pointing_device_task_kb(local_mouse_report); +#endif + // combine with mouse report to ensure that the combined is sent correctly +#ifdef MOUSEKEY_ENABLE + report_mouse_t mousekey_report = mousekey_get_report(); + local_mouse_report.buttons = local_mouse_report.buttons | mousekey_report.buttons; +#endif + pointing_device_send(); +} + +/** + * @brief Gets current mouse report used by pointing device task + * + * @return report_mouse_t + */ +report_mouse_t pointing_device_get_report(void) { + return local_mouse_report; +} + +/** + * @brief Sets mouse report used be pointing device task + * + * @param[in] mouse_report + */ +void pointing_device_set_report(report_mouse_t mouse_report) { + local_mouse_report = mouse_report; +} + +/** + * @brief Gets current pointing device CPI if supported + * + * Gets current cpi from pointing device driver if supported and returns it as uint16_t + * + * @return cpi value as uint16_t + */ +uint16_t pointing_device_get_cpi(void) { +#if defined(SPLIT_POINTING_ENABLE) + return POINTING_DEVICE_THIS_SIDE ? pointing_device_driver.get_cpi() : shared_cpi; +#else + return pointing_device_driver.get_cpi(); +#endif +} + +/** + * @brief Set pointing device CPI if supported + * + * Takes a uint16_t value to set pointing device cpi if supported by driver. + * + * @param[in] cpi uint16_t value. + */ +void pointing_device_set_cpi(uint16_t cpi) { +#if defined(SPLIT_POINTING_ENABLE) + if (POINTING_DEVICE_THIS_SIDE) { + pointing_device_driver.set_cpi(cpi); + } else { + shared_cpi = cpi; + } +#else + pointing_device_driver.set_cpi(cpi); +#endif +} + +#if defined(SPLIT_POINTING_ENABLE) && defined(POINTING_DEVICE_COMBINED) +/** + * @brief Set pointing device CPI if supported + * + * Takes a bool and uint16_t and allows setting cpi for a single side when using 2 pointing devices with a split keyboard. + * + * NOTE: Only available when using SPLIT_POINTING_ENABLE and POINTING_DEVICE_COMBINED + * + * @param[in] left true = left, false = right. + * @param[in] cpi uint16_t value. + */ +void pointing_device_set_cpi_on_side(bool left, uint16_t cpi) { + bool local = (is_keyboard_left() & left) ? true : false; + if (local) { + pointing_device_driver.set_cpi(cpi); + } else { + shared_cpi = cpi; + } +} + +/** + * @brief clamps int16_t to int8_t + * + * @param[in] int16_t value + * @return int8_t clamped value + */ +static inline int8_t pointing_device_hv_clamp(int16_t value) { + if (value < INT8_MIN) { + return INT8_MIN; + } else if (value > INT8_MAX) { + return INT8_MAX; + } else { + return value; + } +} + +/** + * @brief clamps int16_t to int8_t + * + * @param[in] clamp_range_t value + * @return mouse_xy_report_t clamped value + */ +static inline mouse_xy_report_t pointing_device_xy_clamp(clamp_range_t value) { + if (value < XY_REPORT_MIN) { + return XY_REPORT_MIN; + } else if (value > XY_REPORT_MAX) { + return XY_REPORT_MAX; + } else { + return value; + } +} +/** + * @brief combines 2 mouse reports and returns 2 + * + * Combines 2 report_mouse_t structs, clamping movement values to int8_t and ignores report_id then returns the resulting report_mouse_t struct. + * + * NOTE: Only available when using SPLIT_POINTING_ENABLE and POINTING_DEVICE_COMBINED + * + * @param[in] left_report left report_mouse_t + * @param[in] right_report right report_mouse_t + * @return combined report_mouse_t of left_report and right_report + */ +report_mouse_t pointing_device_combine_reports(report_mouse_t left_report, report_mouse_t right_report) { + left_report.x = pointing_device_xy_clamp((clamp_range_t)left_report.x + right_report.x); + left_report.y = pointing_device_xy_clamp((clamp_range_t)left_report.y + right_report.y); + left_report.h = pointing_device_hv_clamp((int16_t)left_report.h + right_report.h); + left_report.v = pointing_device_hv_clamp((int16_t)left_report.v + right_report.v); + left_report.buttons |= right_report.buttons; + return left_report; +} + +/** + * @brief Adjust mouse report by any optional right pointing configuration defines + * + * This applies rotation or inversion to the mouse report as selected by the pointing device common configuration defines. + * + * NOTE: Only available when using SPLIT_POINTING_ENABLE and POINTING_DEVICE_COMBINED + * + * @param[in] mouse_report report_mouse_t to be adjusted + * @return report_mouse_t with adjusted values + */ +report_mouse_t pointing_device_adjust_by_defines_right(report_mouse_t mouse_report) { + // Support rotation of the sensor data +# if defined(POINTING_DEVICE_ROTATION_90_RIGHT) || defined(POINTING_DEVICE_ROTATION_180_RIGHT) || defined(POINTING_DEVICE_ROTATION_270_RIGHT) + mouse_xy_report_t x = mouse_report.x; + mouse_xy_report_t y = mouse_report.y; +# if defined(POINTING_DEVICE_ROTATION_90_RIGHT) + mouse_report.x = y; + mouse_report.y = -x; +# elif defined(POINTING_DEVICE_ROTATION_180_RIGHT) + mouse_report.x = -x; + mouse_report.y = -y; +# elif defined(POINTING_DEVICE_ROTATION_270_RIGHT) + mouse_report.x = -y; + mouse_report.y = x; +# else +# error "How the heck did you get here?!" +# endif +# endif + // Support Inverting the X and Y Axises +# if defined(POINTING_DEVICE_INVERT_X_RIGHT) + mouse_report.x = -mouse_report.x; +# endif +# if defined(POINTING_DEVICE_INVERT_Y_RIGHT) + mouse_report.y = -mouse_report.y; +# endif + return mouse_report; +} + +/** + * @brief Weak function allowing for keyboard level mouse report modification + * + * Takes 2 report_mouse_t structs allowing individual modification of sides at keyboard level then returns pointing_device_task_combined_user. + * + * NOTE: Only available when using SPLIT_POINTING_ENABLE and POINTING_DEVICE_COMBINED + * + * @param[in] left_report report_mouse_t + * @param[in] right_report report_mouse_t + * @return pointing_device_task_combined_user(left_report, right_report) by default + */ +__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); +} + +/** + * @brief Weak function allowing for user level mouse report modification + * + * Takes 2 report_mouse_t structs allowing individual modification of sides at user level then returns pointing_device_combine_reports. + * + * NOTE: Only available when using SPLIT_POINTING_ENABLE and POINTING_DEVICE_COMBINED + * + * @param[in] left_report report_mouse_t + * @param[in] right_report report_mouse_t + * @return pointing_device_combine_reports(left_report, right_report) by default + */ +__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); +} +#endif |