- /* Copyright 2021
- *
- * 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/>.
- */
-
- #pragma once
-
- #include <stdbool.h>
-
- /**
- * \file
- *
- * defgroup digitizer HID Digitizer
- * \{
- */
-
- typedef struct {
- bool in_range : 1;
- bool tip : 1;
- bool barrel : 1;
- float x;
- float y;
- bool dirty;
- } digitizer_t;
-
- extern digitizer_t digitizer_state;
-
- /**
- * \brief Send the digitizer report to the host if it is marked as dirty.
- */
- void digitizer_flush(void);
-
- /**
- * \brief Assert the "in range" indicator, and flush the report.
- */
- void digitizer_in_range_on(void);
-
- /**
- * \brief Deassert the "in range" indicator, and flush the report.
- */
- void digitizer_in_range_off(void);
-
- /**
- * \brief Assert the tip switch, and flush the report.
- */
- void digitizer_tip_switch_on(void);
-
- /**
- * \brief Deassert the tip switch, and flush the report.
- */
- void digitizer_tip_switch_off(void);
-
- /**
- * \brief Assert the barrel switch, and flush the report.
- */
- void digitizer_barrel_switch_on(void);
-
- /**
- * \brief Deassert the barrel switch, and flush the report.
- */
- void digitizer_barrel_switch_off(void);
-
- /**
- * \brief Set the absolute X and Y position of the digitizer contact, and flush the report.
- *
- * \param x The X value of the contact position, from 0 to 1.
- * \param y The Y value of the contact position, from 0 to 1.
- */
- void digitizer_set_position(float x, float y);
-
- void host_digitizer_send(digitizer_t *digitizer);
-
- /** \} */
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