mirror of
https://github.com/qmk/qmk_firmware.git
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96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
/*
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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 "blackberry_trackball.h"
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#include "ch.h"
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#include "hal.h"
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#include "gpio.h"
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#include "print.h"
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volatile int8_t x = 0;
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volatile int8_t y = 0;
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char debug = '\0';
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const pointing_device_driver_t blackberry_trackball_pointing_device_driver = {
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.init = blackberry_trackball_init,
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.get_report = blackberry_trackball_get_report,
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.set_cpi = NULL,
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.get_cpi = NULL,
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};
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void trackball_movement_cb(void *arg) {
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switch ((intptr_t)arg) {
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case M_UP:
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y -= BLACKBERRY_TRACKBALL_STEP;
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debug = 'U';
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break;
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case M_DOWN:
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y += BLACKBERRY_TRACKBALL_STEP;
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debug = 'D';
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break;
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case M_RIGHT:
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x += BLACKBERRY_TRACKBALL_STEP;
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debug = 'R';
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break;
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case M_LEFT:
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x -= BLACKBERRY_TRACKBALL_STEP;
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debug = 'L';
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break;
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}
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}
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void blackberry_trackball_init(void) {
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palSetLineMode(BLACKBERRY_TRACKBALL_UP_PIN, PAL_MODE_INPUT);
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palEnableLineEvent(BLACKBERRY_TRACKBALL_UP_PIN, PAL_EVENT_MODE_RISING_EDGE );
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palSetLineCallback(BLACKBERRY_TRACKBALL_UP_PIN, trackball_movement_cb, (void *)M_UP);
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palSetLineMode(BLACKBERRY_TRACKBALL_DOWN_PIN, PAL_MODE_INPUT);
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palEnableLineEvent(BLACKBERRY_TRACKBALL_DOWN_PIN, PAL_EVENT_MODE_RISING_EDGE );
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palSetLineCallback(BLACKBERRY_TRACKBALL_DOWN_PIN, trackball_movement_cb, (void *)M_DOWN);
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palSetLineMode(BLACKBERRY_TRACKBALL_LEFT_PIN, PAL_MODE_INPUT);
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palEnableLineEvent(BLACKBERRY_TRACKBALL_LEFT_PIN, PAL_EVENT_MODE_RISING_EDGE );
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palSetLineCallback(BLACKBERRY_TRACKBALL_LEFT_PIN, trackball_movement_cb, (void *)M_LEFT);
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palSetLineMode(BLACKBERRY_TRACKBALL_RIGHT_PIN, PAL_MODE_INPUT);
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palEnableLineEvent(BLACKBERRY_TRACKBALL_RIGHT_PIN, PAL_EVENT_MODE_RISING_EDGE );
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palSetLineCallback(BLACKBERRY_TRACKBALL_RIGHT_PIN, trackball_movement_cb, (void *)M_RIGHT);
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}
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report_mouse_t blackberry_trackball_get_report(report_mouse_t mouse_report) {
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mouse_report.x = x;
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mouse_report.y = y;
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x = 0;
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y = 0;
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#ifdef BLACKBERRY_TRACKBALL_DEBUG
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if (debug != '\0') {
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uprintf("%c\n", debug);
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}
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debug = '\0';
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#endif
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return mouse_report;
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}
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